DE3446079A1 - METHOD FOR TREATING THE WINDING OF THE SHEET PACK OF A DYNAMOELECTRIC MACHINE, AND FOR PRODUCING AND TREATING A LOOSE WINDED PACK - Google Patents

Description

95O2.3-3HM-O5583-O5716 General Electric Company

Process for treating the winding of the laminated core of a dynamo-electric machine and for producing it and treating a loosely wound laminated core

The invention relates generally to dynamo-electric machines, and more particularly relates to a method of treating or soaking the winding of the laminated core of a dynamo-electric machine.

The invention also relates generally to loosely wound laminated cores for dynamo-electric machines and relates in particular to a method for treating a loosely wound laminated core, a method for production a loosely wound laminated core and a method for operating a device for gluing a loosely wound Sheet metal stacks.

So far, different and varied processes have been used to wind the laminated core of a dynaniacsleklri.

see machine, such as a stand or a laminated rotor core, and in some cases also that Laminated core itself with a curable or curable liquid resin material or liquid. Handle glue. For example, a typical well-known stator core has sheets that can be converted into a Package are firmly connected to each other, for example by welding, gluing or fastening with clamps or the like., and a stator winding made up of a plurality of coils having opposite side turn portions which are in therefor in the Stands provided grooves are added, as well as opposite end winding parts that form a total of annular groupings are combined at the opposite end faces of the stator. Of course, it is a suitable one Insulation, such as slot linings or the like., Provided in the stator slots around the opposite side turn parts to electrically isolate the coils from the stator, and appropriate winding directionalities, such as For example slot wedges or the like. Are arranged in the stator slots to the. opposite side turn parts to prevent the coils from shifting into the hole in the stator core. In some cases they are opposite Winding head parts of the bobbins tied or tied together with string in a known manner. aside from that is in some cases an insulating sleeve of suitable material arranged on the terminal ends of the winding, the emerge from the different grooves of the stand on the opposite end faces of the same.

In one of the known methods of treating the winding, which is associated with the known stand described above, the sheets of which are firmly connected to one another, for example as mentioned by welding or fastening with clamps, the stator and the winding are baked or on a pre-selected temperature, which is sufficient to preheat at least the winding, and, while the stator

The core and the winding are at an elevated temperature, they are completely immersed in a bath of the liquid adhesive submerged or immersed. When later the stand and the winding from the bath liquid glue are removed, they are transferred to a curing oven to be re-baked or heated with it the hardening of the liquid adhesive takes place, which adhered to the stator core and to the winding is. In some cases, the stator core and the winding are re-immersed and re-baked. Of course Although the hardened liquid adhesive on the opposite end winding parts of the coils can do this have imparted some degree of rigidity, but it is believed that one of the disadvantageous or undesirable Features of this known treatment method is that the stator slots are insufficient with the liquid adhesive have been filled during immersion of the stand so that the opposite Side winding parts of the coils within the stator slots are not sufficiently soaked with the liquid adhesive or are encapsulated by this when it has hardened. As a result, it is believed that the strength of the winding may have been impaired in the stator core and that also the opposite side turn parts of the coils in the stator slots have not been properly fixed. It is further assumed that a Another disadvantageous or undesirable feature of the known treatment process is that it is more fluid Adhesive during the transfer of the stator core with the winding from the bath of liquid adhesive into one Curing oven for baking glue by dripping or the like. the winding is lost, and it is also assumed that this loss of liquid adhesive voids in the interstices of the opposite end winding parts of the May have caused coils that weaken them. Another disadvantageous or undesirable feature of the

known treatment methods are believed to be necessary may be, excess liquid adhesive from the opposite end faces and from the peripheral surface of the stator core before the stator and the winding are baked to avoid the liquid Glue on it to harden. Next is a disadvantageous or undesirable feature of the known treatment method assumed that the insulating sleeves on the terminal ends of the winding against contact with the liquid adhesive must be protected in the bath during immersion of the stator core and the winding. As another disadvantageous or undesirable feature of the known treatment methods is believed to be insufficient Distribution of the liquid adhesive in the winding and between the interfaces of the sheets of the laminated core and an uneven distribution occurs, whereby the strength of the laminated core adversely affects will.

In a further known method for treating the winding of the stator described above, in which the metal sheets have been connected to one another by a gluing process with the aid of a screw connection, as mentioned above and described, for example, in US Pat. No. 3,299,304 Reference is made for further details, only the opposite end windings of the coils are immersed in the bath of liquid adhesive before baking takes place to harden the liquid adhesive. It is assumed that this known method of treating the winding of such a known screwed and glued stator core has at least all of the same disadvantageous or undesirable features as the known treatment method described above.

Another typical well-known stator core of the loosely wound type is stacked loosely or loosely

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Sheet metal produced, in which the stator slots due to the slot linings arranged in them on top of each other are kept aligned, and the winding is this loose laminated core overall to the one described above Way added. One of the known treatment methods for this loosely wound stator core includes this Attaching an alignment mandrel or the like. in the bore of the loose laminated core and the subsequent baking, complete Immersion and renewed baking of the loosely wound laminated core as a whole in the manner described above. Of course, in this case it is believed that most of the liquid adhesive is removed from the by capillary action outer peripheral surface of the stator core flowed between the adjacent sheets of the loose package is so as to connect the sheets and the winding together when the loosely wound core is baked again, to cause the liquid adhesive to cure; but it is also assumed that part of the liquid adhesive from the grooves of the stator by capillary action between the adjacent sheets of the loose laminated core may have come. Even so, it is believed that this known method of treating the loosely wound Laminated core at least overall the same disadvantageous or undesirable features as the previously described known Has treatment method.

Yet another known method of handling the loosely wound laminated core described above is included the gluing process with the aid of a screw connection, which is described in US Pat. No. 3,821,846. With this well-known Process several screws through screw holes provided for them in the loose sheet metal stack of the loosely wound laminated core passed through to one of the opposite end face of the same on a screwing device to fix. After tightening the screws, the sheets of the loose stack can therefore be pushed through the screw

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ben ineyeaiiint clamped together near the screw holes, creating overall axial pressure areas on the screw holes between the opposite end faces of the stand. When the loosely wound laminated core is attached to the screwing device in this way is attached, it is preheated and then immersed in the bath of liquid adhesive so far that the laminated core but not one of the opposite end winding parts of the coils is submerged at their connection ends. So one of the opposite end winding parts of the coils is not immersed at their connection ends, but the liquid glue is applied to it later. Because the hole of the stand on the alignment mandrel as described above attached, it is believed that most of the liquid adhesive is removed by capillary action from the exterior Circumferential surface of the laminated core from between each other adjacent sheets of the same has penetrated to cover the adjacent surfaces of the same, namely without taking into account the clamping effect of the screws or the axial pressure areas that have been created thereby are; however, it is also believed that some of the liquid adhesive is removed from the grooves of the stator by capillary action has passed between the adjacent sheets of the laminated core. Then the Screwing device attached loosely wound laminated core transferred to a curing oven to be baked and the liquid adhesive attached to the laminated core and the Winding adheres and, as mentioned above, serves to glue them together, cured. Nevertheless it is assumed that this known method of treating the loosely wound laminated core as a whole are disadvantageous or has undesirable characteristics such as the known treatment methods described above.

In yet another known method of treating the winding of the known sheet metal stator described above

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package in which the sheets are firmly connected to one another, for example, as mentioned by welding, gluing or Fastening with clamps, the stator core is rotated in only one direction, whereby the hole of the stator is extends horizontally overall. While the stand is rotating in one direction only, the liquid glue on the opposite end turns of the coils of the winding of the stator and flows from it because from a total of along the opposite side turn parts of the coils in the stator slots, in which the opposite Side turn parts of the coils are added. However, it is believed that one of the disadvantageous or undesirable features of this known treatment method is that, because the stand only in the is rotated in one direction, some of the slots of the stator are insufficiently supplied, i.e. not sufficiently with the one in them flowing liquid adhesive are filled. For example, because of the rotation of the stand in only one direction assumed that a greater amount of the liquid adhesive applied to the opposite winding head parts of the bobbins drips, from these all along one of the opposite side winding parts of the Coils flows into the stator slots, in which the opposite side turn parts of the coils are received while a lesser amount of the liquid adhesive is overall along the other opposing side turn portions of the coils flows into the grooves of the stator, in which the other opposite side turn parts of the coils are accommodated, creating these stator slots in which the other opposite side winding parts of the coils are inadequately supplied, i.e. not receiving the same filling of liquid adhesive. Due to the rotation of the stand in only one direction, it is assumed that the dripped liquid Glue under gravity on the opposite end winding parts of the bobbins "downhill", i.e. in the direction of rotation

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direction of the stator and then along one of the opposite side turn parts of the coils into the stator slots, in which these are received, flows, but the liquid adhesive is at least prevented from being on the opposite The winding head parts of the coils flow "uphill", i.e. counter to the rotation of the stator in only the one direction. Therefore, the stator slots in which the other opposite side turn parts of the coils are absorbed, overall insufficiently supplied with liquid adhesive, i.e. they receive the smaller amount of the liquid adhesive dripped onto the opposite winding head parts of the reels as the stator rotates in one direction only.

Various objects of the invention include providing an improved method of treating the winding of the laminated core of a dynamo-electric machine with a liquid adhesive, which has the disadvantages discussed above or eliminates undesirable features and other prior art features; creating an improved Process that results in a firmer and more even gluing of the winding by treating it with liquid glue yields; creating an improved process in which the liquid adhesive is applied to the opposite End turns of the winding during rotation of the core both in one direction and in one is applied in the opposite direction; the creation of an improved process in which both the opposite End winding parts of the winding, which are arranged on the opposite end faces of the laminated core are, as well as the opposite side turn parts the winding, which are accommodated in the grooves provided for this purpose in the stator, by the liquid adhesive, the is applied to the opposite end winding parts of the winding, are completely encased as a whole; the Creation of an improved process in which the fluid

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sige glue a total of evenly on all grooves of the laminated core is distributed, whereby an overall uniform and complete filling of the grooves with the liquid glue is guaranteed; and the provision of an improved method in which the rotation of the Stand both in one direction and in an opposite direction during the application of the Liquid adhesive on the opposite end winding parts of the winding ensures that from these the liquid adhesive as a whole along the opposite side turn portions of the winding into all of the grooves of the laminated core flows, in which the opposite side turns steep of the winding are added. This and further objects and advantageous features of the invention are in part self evident and in part are as follows set out in more detail.

The several objects of the invention should also be mentioned the provision of an improved method of handling a loosely wound laminated core, an improved method for producing a loosely wound laminated core and an improved method for operating a device for Gluing a loosely wound laminated core using methods that have the disadvantageous or undesirable features explained above and remove other prior art features; creating improved processes that are firmer and result in more uniform gluing of the sheets and the winding of the loosely wound laminated core; the creation of improved Process in which liquid adhesive is applied from the opposite end winding parts of the winding spools the opposite side turn parts, which are received in the grooves, which for them in a stack of sheets of the loosely wound laminated core are provided, and only from the grooves between the adjacent surfaces of the Sheets arrives in the sheet stack and wets them, and

through capillary action up to a total of * - surface of the same; the creation of improved methods in which the loosely wound laminated core in both a Direction and is rotated in a further opposite direction, not just to the total complete To ensure filling of the grooves with the liquid adhesive that has flowed into them, but also to ensure that they are uniform Distribution of the liquid adhesive both in the winding and in the sheet stack of the loosely wound To ensure laminated core; to provide an improved process in which there is little, if any, liquid adhesive on the peripheral surface of the laminated core or accumulates on its opposite end faces; the creation of improved processes in which the liquid adhesive between superimposed parts or Slot liners and slot wedges that form the opposite side turn portions of the winding coils within the slots of the laminated core, and from the grooves as a whole by capillary action in wetting contact between the one another adjacent surfaces of the sheets of the laminated core is guided; the creation of improved procedures which the winding and the stack of sheets of the loosely wound laminated core with the liquid adhesive as a whole completely to be soaked; the creation of improved processes in which stiffening (filleting) or webbing (webbing) of the liquid adhesive after it has hardened within the spaces between the opposite side turns and winding head parts of the coils is such that the aforementioned stronger and more uniform bonding of the winding is achieved in the laminated core; and the creation of improved processes in which the components used are simple in construction, easily assembled, and economically manufactured.

In general, a method in one embodiment of Invention for treating or impregnating the winding of the laminated core of a dynamo-electric machine with a liquid adhesive

created. The laminated core has two opposite faces and several grooves that are between the extend opposite end faces, cut them and take up the winding. The winding consists of several Sets of coils, each coil having at least one conductor turn with the opposite side turn portions of the coils received in the grooves of the laminated core and the opposite end winding parts of the coils are arranged overall on the opposite end faces of the laminated core. In doing this Procedure, the laminated core is rotated in one direction. The liquid glue is applied to the opposite winding head parts of the coils is applied, and a greater amount of the liquid glue flows from the opposite ones Winding head parts of the coils from a total of along one of the opposite side turn parts of the coils in the grooves of the laminated core in which the opposite side winding parts are received than along the other opposite side winding parts of the coils in the grooves of the laminated core, in which the other opposite ones Side turn parts of the coils are added when the stator is rotated in one direction. The rotation of the laminated core is reversed in order to rotate it in the opposite direction to the other direction. That Application of the liquid adhesive to the opposite end turn portions of the coils continues, and a larger amount of the liquid adhesive flows from the opposite end winding parts of the coils from a total of along the other opposite side turn parts of the coils into the grooves of the laminated core in which the others opposite side turn parts are added than along one of the opposite side winding parts of the coils into the grooves of the laminated core, in which the opposite ones Side turn parts of the coils added when the laminated core is rotated in the other direction, thereby filling the grooves of the laminated core with to balance liquid adhesive overall.

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Furthermore, in one embodiment of the invention, a method for treating a loosely wound laminated core is generally provided for a dynamo-electric machine with a curable liquid adhesive that is suitable for loosely wound To glue laminated core, created. The loosely wound laminated core has several laminations that are adjacent to one another in a total of a loose stack are arranged, two opposite end faces on the stack of sheets, a circumferential surface on the stack of sheets between the opposite end faces of the same and several grooves that extend through the stack of sheets between the opposite end faces of the same extend around the winding of the loosely wound Take up sheet metal package. The winding has several sets of coils, and each coil has at least one turn of conductor, opposite side turn portions of the coils being received in the grooves and opposite end turn portions of the coils, which are arranged as a whole on the opposite end faces. When performing this procedure the loosely wound laminated core is rotated in one direction and in a further direction opposite thereto, and the liquid adhesive is applied to the opposite winding head portions of the reels at least during the rotation of the loosely wound laminated core is applied in one direction and in the other. The liquid glue flows off the opposite end winding parts of the coils from a total of along the opposite side turn parts of the Coils in the grooves of the laminated core, in which the opposite side winding parts of the coils are received, and the liquid adhesive is brought into wetting contact between the grooves as a whole by capillary action Sheets and at least as a whole brought to the circumferential surface of the laminated core when the loosely wound laminated core is rotated in one direction and the other.

Furthermore, in general and in one embodiment of the invention, a method is provided for producing a loose

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wound laminated core, which has several sheets, each having several grooves for receiving coils of the winding of the loosely wound laminated core, the laminations and the winding being secured by a curable liquid adhesive are glued together. When this method is carried out, the sheets are loosely stacked as a whole and the grooves are axially aligned overall through the sheets in the stack. Opposite parts of the coils are placed in the grooves, and other opposite parts of the coils are placed overall arranged at the opposite ends of the laminated core, so as to at least partially wrap the loosely wound Form laminated core. The loosely wound laminated core is alternately in one and in another, opposite to it Rotated direction. The liquid glue is applied to the other opposite parts of the coils and flows therefrom as a whole along the first-mentioned opposite parts of the winding coils into the slots of the sheet metal stack, in which the former opposite parts of the coils are received, if the loose wound laminated core is rotated in one direction and the other, and part of the liquid adhesive is brought into wetting contact between the sheets of the sheet metal stack by capillary action. Of the liquid glue contained in the coils and in the stack of sheets is hardened to harden the liquid glue and thereby the winding and the stack of sheets of the loosely wound laminated core to form a one-piece overall Connect ground.

A method, in one embodiment of the invention, of operating the apparatus is also generally provided for gluing a loosely wound laminated core with a liquid adhesive to form a one-piece mass. The apparatus has multiple work stations and two sets of devices for dispensing the liquid adhesive.

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The loosely wound laminated core contains several metal sheets, which are arranged in a stack adjacent to one another are, wherein the stack of sheets has two opposite end faces and wherein a plurality of grooves extend axially through a total of the stack of sheets between the opposite end faces of the same extend around the winding of the loosely wound Take up sheet metal package. The winding has several coils which have at least one conductor turn, with opposite ones Side winding parts of the coils received in the grooves of the laminated core and opposite end winding parts of the coils arranged in total in annular groupings on the opposite end faces of the laminated core are. When carrying out this process, the loosely wound laminated core is selected between several preselected setting or Switching positions moved progressively through the workstations of the device, and the loosely wound laminated core is preheated as it moves through one of the workstations of the device. The loosely wound laminated core is rotated in at least one of its preselected switching positions in one direction and in at least one other its preselected switching positions in a further direction opposite to the one direction, if the loosely wound laminated core is moved through a further work station of the device, and the delivery devices are actuated in the further work station to apply liquid glue to the opposite end winding of the coils of the loosely wound laminated core during at least part of the rotation of the loosely wound Laminated core in one direction and in the other direction in the at least one 'and in the at least further preselected to deliver further switching position in the further work station of the device. The liquid glue flows from the opposite end windings of the coils along the opposite side turn portions as a whole the coils in the grooves of the loosely wound laminated core,

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in which the opposite side turn parts of the Coils are added, and some of the liquid adhesive is wetting out from the grooves by capillary action Contact between the adjacent sheets in the loosely wound laminated core in one and in the other direction in the one and in the further preselected switching position of the same in the further work station of the device. The loosely wound sheet metal package is further heated during its movement through at least one further work station of the device, and the liquid adhesive in the loosely wound laminated core is hardened in order to harden the liquid adhesive, so that it connects the winding and the sheets of the loosely wound laminated core to form an overall one-piece mass.

Exemplary embodiments of the invention are given below Described in more detail with reference to the drawings. Show it

Fig. 1 is a functional block diagram showing a

Process for treating the winding of the laminated core of a dynamo-electric machine shows with a liquid adhesive in one embodiment of the invention,

Fig. 2 is a schematic view showing part

a device for carrying out the method according to FIG. 1 and a preheating work station, a liquid adhesive dispensing workstation and a curing workstation the device shows

3 is an enlarged isometric view,

which the laminated core in the delivery station according to FIG. 2 attached to a rotatable Thorn and assigned to two sets of

Means for dispensing the liquid adhesive to two opposite one another Shows the winding head parts of the winding of the laminated core,

4, 5 and 6 are schematic end views of the laminated core according to FIG. 3, which during one revolution same the flow of the discharged onto an opposite end winding part of a coil of the winding liquid adhesive in the grooves of the laminated core shows / in which two opposite Side turn parts of the coils, which are connected to their opposite end winding parts, arranged are,

7 is a sectional view taken along line 7-7

in Fig. 3,

FIG. 8 is an enlarged sectional view according to FIG

Line 8-8 in Fig. 7,

Fig. 9 in a total of the same representation as

7 shows a strand insulation between coils of the winding,

FIG. 10 is an enlarged sectional view according to FIG

Line 10-10 in Fig. 9,

11 is a graph showing the strengths of

Groove bundles of opposite side turn parts of the winding in preselected Grooves of the stator when treated by the method according to the invention and by the known method of insertion

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immersing the stand in a bath of liquid adhesive shows

Figure 12 is an isometric view of a lo

se wrapped sheet metal packages and one. Alignment sleeve of the same on a rotatable mandrel is attached, in a delivery station of a device for carrying out its gluing as well as the principles involved in a method for handling a loosely wound laminated core for a Dynamo-electric machine can be applied in an embodiment of the invention, and a method for the production of a loosely wound laminated core, also in one embodiment the invention,

13 is an enlarged partial sectional view

along the line 13-13 in Fig. 12,

14 is an isometric partial sectional view;

the stacking of several sheets of metal face to face to form a total shows loose stacks on an alignment mandrel,

15 is a schematic sectional view of the

loosely wound laminated core according to FIG. 12 showing the insertion of a coil shows the winding of the loosely wound sheet metal core in its loose sheet metal stack,

Figures 16, 17 and 18 are schematic end views of the loose

wound laminated core according to Fig. 15,

which during one revolution of the same the flow of liquid glue, which is released onto an opposite winding head part of the coil of the winding, into the slots of the loose wound laminated core illustrates in which two opposite side turn parts of the coil are included,

19 is an enlarged partial sectional view

13, showing the overall flow of liquid adhesive through Capillary action in wetting contact between the face to face abutting metal sheets in the loosely wound laminated core illustrated,

Fig. 20 is a functional block diagram showing the

Illustrates the method according to the invention,

21 is a partial isometric view showing

illustrates the introduction of groove linings into the grooves of the loose sheet metal stack,

22 is an enlarged partial sectional view

after the line -22-22 in Fig. 13,

23 shows the same representation as in FIG.

22, but with the slot wedge between the slot lining and a tooth head part of the loosely wound laminated core within a groove of the same

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as well as a strand insulation part are shown within the groove,

Figure 24 is a partial isometric view

inserting the alignment sleeve into the bore of the loosely wound Tin packet shows

25 is a schematic side view of FIG

Device for gluing the loosely wound laminated core and the principles applied to a method of operating the apparatus in one embodiment of the invention can be

FIG. 26 is a schematic view taken from FIG

Flow chart illustrates the operation of the apparatus of Fig. 25,

Fig. 27 is an isometric view of a white

teren groove lining, which is used in the loosely wound laminated core can be,

28 is an end view of an assembly of FIG

Sleeve and an alternative loosely wound laminated core in connection with a screwing device and attached to the rotatable mandrel the device according to FIGS. 25 and 26,

29 is a sectional view along the line

29-29 in Fig. 28,

Fig. 30 is a sectional view of the loose sheet

stack of the alternative loosely wound laminated core according to FIGS. 28 and 29, the screwing of the stack of sheets with the screwing device an alignment mandrel · illustrated, and

FIG. 31 is an enlarged partial view from FIG.

29, which loosely wrapped the pressure zones in the stack of sheets of the alternative Laminated core shows, which by screwing the stack of sheets with the screwing device provided are formed.

The drawings show, in one embodiment of the invention, a method for treating a winding 21 of the Laminated core of a dynamoelectric machine, for example a stator 23 or the like., With a liquid adhesive 25 (Figures 1-10). The laminated core or the stator 23 has two opposite end faces 27, 29 and several grooves 31, which extend between and intersect the opposite end faces in order to receive the winding 21- men (Fig. 7). The winding 21 consists of several sets of coils 33, each coil having at least one conductor turn 35, with opposite side turn parts 37, 39 of the coils being received in the grooves 31 of the stator 23 and opposite end turn portions 41, 43 of the coils as a whole in groupings 45, 47 on the opposite end faces 27 and 29 of the stand are arranged (Fig. 7). When performing this procedure, the stand 23 in rotated in one direction, which is indicated by a directional arrow 49 (Fig. 3-6). Liquid glue 25 is through Drops or trickles or the like. delivered to the opposite end winding parts 41, 43 of the bobbins 33, and one larger amount of the liquid adhesive flows from the

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opposite end winding parts of the coils along one of the opposite side winding parts 37 of the coils in the Grooves 31 of the stator 23, in which the opposite side winding parts of the coils are received, than flows into the slots of the stator along the other opposite side turn parts 39 of the coils as a whole, in which the other opposite side turn parts of the coils are housed when the stator is in one Direction is rotated (Fig. 4-6). The rotation of the stand 23 is reversed to move it in a wider direction Rotate, which is indicated by a directional arrow 51 and opposite to the direction indicated by the directional arrow 49 is (Fig. 3-6). The application or dispensing of the liquid adhesive 25 to the opposite end winding parts 41, 43 of the coils 33 continues, and a larger amount of the liquid adhesive flows or gets in another way from the opposite end turns of the bobbins as a whole along the other opposite ones Side winding parts 39 of the coils in the grooves 31 of the stand 23, in which the other opposite side winding parts 39 are included, as a whole along the one opposite side turn portions 37 of the coils flows into the grooves of the stator, in which the opposite side winding parts 37 of the coils are received when the stand is rotated in the other direction indicated by directional arrow 51, whereby the filling of the grooves of the stand with liquid adhesive is compensated for as a whole (Fig. 3-6).

As shown in FIGS. 3-7, the stand 23 has a package 53 of metal sheets 55 stamped or otherwise manufactured from a suitable material, for example Od from a total of thin ferromagnetic sheet the opposite end plates form opposite end faces 27 and 29 of the stator, which is best in the

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3 and 7 can be seen. The stator 23 has a yoke portion 57 with an outer peripheral surface 59, which is arranged between the opposite end faces 27, 29 of the stator, and a plurality of welds 61 extend extends over the circumferential surface between the opposite end faces, thereby the metal sheets 55 with to connect abutting surfaces in the package 53 with one another, as best seen in FIGS. 4-7 is. Although the welds 61 are shown here for explanatory purposes, others known to those skilled in the art can be used suitable measures are taken, such as mechanical interlocking, gluing, wedging Or fastening by brackets or the like. To in the frame the invention to connect the sheets of the package together. Several overall arcuate spacing from one another Teeth 63 having teeth are integrally formed on the yoke section 57 of the stator 23 and extend therefrom as a whole radially inward so that the grooves 31 of the stator are formed between adjacent teeth, as best 4-7 and 8 can be seen. The teeth 63 have several heads 65 at their free ends, some of which are one Limit the bore 67, which extends axially through the stator 23 and the opposite end faces 27, 29 of the same intersects, and a plurality of gaps 69 are formed between adjacent tooth tips and connect the Grooves 31 with the bore. As shown in FIGS. 7 and 8, several known groove linings 71 are at least partly arranged in the grooves 31 of the stator 23, around the opposite side winding parts 37, 39 of the coils 33 to be electrically insulated from the stator, and also a plurality of slot wedges 73 are at least partially within the slots arranged in contact with adjacent tooth tips 65 to the opposite side turn portions of the coils to prevent displacement out of the grooves through the gaps 69 into the bore 67 of the stator. For explanatory purposes are here the groove linings 71 and

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the slot wedges 73 shown, however, within the scope of the invention other winding insulation devices or systems and other winding retention devices in the stator 23 to be used. Furthermore, within the scope of the invention, laminated cores that have other configurations and constructions than the stand 23 have to be used.

According to the illustration in FIG. 3, the bore 67 of the stand is in a dispensing station 75 for the liquid adhesive 23 by a jig or the like. (not shown) releasably attached to a rotatable mandrel 77 which is rotatable is to rotate the stand in opposite directions indicated by directional or rotating arrows 49 and 51, respectively are specified. When the stand 23 is releasably attached or clamped on the mandrel 77, it is in a preselected one Position or location in which the central axis of the bore 67 is overall in an overall horizontal plane (not shown) extends. The central axis of the bore 67 in the stand 23 may, although not shown is to be arranged slightly angled against the aforementioned horizontal plane in the context of the invention. An institution to drive the dome 77 to rotate the stand clockwise and counterclockwise with it, what indicated by the rotary arrows 49 and 51, respectively, has a sprocket 79 which is attached to the mandrel and in drive is connected to an endless chain drive, which is shown schematically by a dashed outline 81 is. It is true that suitable drive devices for optional operation with the endless chain drive 81 be provided in a known manner to drive the endless chain, for the sake of clarity, these are drive devices but not shown. The drive device described above is indeed further or the drive from the chain wheel 79 and the endless chain drive 81 for optionally rotating the dome 77 in the opposite directions of the rotary arrows 49, 51 for explanation reasons described within the scope of the invention

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however, other facilities can be assigned to the mandrel, to cause it to rotate selectively in opposite directions. At least the winding 21 of the stator 23 can, as will be explained in more detail below, before the treatment of the same with the liquid adhesive be preheated, although this preheating can also be omitted in the context of the invention.

Two sets of nozzles 83, 85 and 87, 89 are provided to apply the liquid adhesive 25 to the opposite end winding parts 41, 43 of the coils 33 in the generally annular groupings 45 and 47 of the same. When the stand 23 is rotated together with the mandrel 77 in the delivery station 75, the delivery devices or nozzles 83, 85, 87, 89 adjustable by known means (not shown) in preselected positions with respect to the opposite Winding head parts 41, 43 of the bobbins 33 are moved on the stand 23, as shown in FIG. 3 and shown overall by a functional block diagram 91 in FIG. The nozzles are in these pre-selected positions 83, 87 near the inner peripheral surface of the opposite Winding head parts 41, 43 of the bobbins 33 are arranged in the opposite annular groupings 45, 47 of the same so that that they have a total of axial distance from the opposite end faces 27, 29 of the stator 23, and the nozzles 85, 89 are near the outer peripheral surface of the opposite end windings of the coils in the opposite annular groupings thereof arranged so that they are axially spaced overall between the opposite free ends of these groupings and the opposite end faces of the stator are arranged. For explanation The reasons for this are these preselected positions of the nozzles 83, 85, 87, 89 for dispensing the liquid Adhesive 25 on the opposite end winding portions 41, 43 of the bobbins 33 in the opposite annular groupings 45, 47 of the same, within the scope of the invention, however, these nozzles can be in various other

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selected positions with respect to the opposite end winding parts of the coils are placed in the opposed annular groupings thereof. The liquid glue 25 a solvent-based paint of the type Y390PS (with a total of between about 9% and about 38% solids) available from the Sterling Division of Reichhold Chemicals, Inc., Sewickley, PA is, within the scope of the invention, however, various other liquid adhesives, such as paints Solvent- or water-based and with other than the above-mentioned solids contents can be used.

With the nozzles 83, 85, 87, 89 thus arranged in their preselected positions and the mandrel 77 and the stand 23 are rotated together in the clockwise direction of the rotary arrow 49, as indicated by the block 93 in the functional block diagram in FIG As indicated in Fig. 1, the liquid adhesive 25 is dispensed from the nozzles with a preselected flow rate onto the opposite ones Winding head parts 41, 43 of the coils 33 in the opposite annular groupings 45, 47 thereof, as indicated by the block 95 in the functional block diagram in FIG Fig. 1 is indicated, and within the scope of the invention, the flow rate from the nozzles can be the same or different. In addition, within the scope of the invention, the rotation of the stand 23 can begin in the clockwise direction before the nozzles 83, 85, 87, 89 are brought into their preselected positions, which is indicated by the double arrow between the blocks 91, 93 in the Functional block diagram is given in FIG. To the following description of the flow of the liquid adhesive on the opposite end winding parts 41, 43 of the coils 31 to simplify and make it clearer is only the end winding part 43, which is on the opposite side winding parts 37, 39 one of the coils 33 is integrally formed on the stand 23 in association with the nozzle 85 during one revolution of the stand shown schematically in Figs. 4-6. For purposes of illustration, it is assumed that one droplet of the

3446G79

Liquid adhesive 25 is dispensed from the nozzle 85 onto the overall arcuate middle section of the winding head part 43 when this is rotated with the stand 23 in the clockwise direction of the rotary arrow 49, which is best shown in FIG recognize is. The liquid adhesive 25, which is applied from the nozzle to the middle section of the winding head part 43 will seek, by capillary action and under the action of gravity, in total instantaneously opposite directions (as shown by the flow arrows in Fig. 4) along the end winding to the opposite directions To flow side turn portions 37, 39 molded onto it when the stand is not rotated clockwise would. However, if the stand 23 from its position in Fig. 4 by part of a revolution, for example, in the is rotated in the position shown in Fig. 5, it can be seen that in this rotational position of the stator of the side winding part 39 in a lower or "downhill" position with respect to the horizontal than the opposite side turn portion 37 is arranged, which is "uphill" from him. Therefore, by rotating the stand 23 in Clockwise and because the liquid adhesive 25 which is dispensed onto the winding head part 43, not along this can flow in an "uphill" direction, at least a larger amount of this adhesive along the end winding part to the lower or "downhill" opposite one Side winding part 39 flow past the end face 29 of the stator 23 and into the groove 31 of the same, in which the "downhill" opposite side winding part 39 is included. Since the aforementioned is at least larger Amount of the liquid adhesive 25, which is dispensed on the winding head part 43, flows into the stator groove 31, in which is the "downhill" opposite side turn part 39 is added, it can be seen that this stand groove is entirely filled with the liquid adhesive that flows into them during the clockwise rotation of the stand 23, whereas only a smaller amount of the liquid

3443379 '^2>''■ · """'"'"■"'

• G9 ·

Adhesive can flow into the groove 31 in which the "uphill" opposite side winding part 37 is added, whereby actually the stator groove in which the "Uphill" opposite side turn portion 37 added is inadequate. When the stand 23 is rotated another part of a revolution thereof is, as shown by way of example in Fig. 6, the "uphill" side turn portion 37 reaches a later "Downhill" position with respect to the opposite side turn portion 39. Since the aforementioned larger amount of the liquid adhesive 25, which is released onto the end winding part 43 has been, has flowed into the stator slot, in which the "downhill" opposite side winding part is ingested as described above, however, there remains only a minor, if any, amount of the liquid Adhesive to flow from the winding head part into the stator groove 31, in which the "uphill" opposite Cross turn part 37 is added, available, even if the "uphill" opposite Crosswind portion 37 into the "downhill" position with respect to the "downhill" opposite crosswind portion 39 is rotated as shown in FIG. For these reasons, it is assumed that only the grooves 31 of the Stand 23, in which the "downhill" side winding parts 39 of the coils 33 are received, are entirely filled with the liquid adhesive 25, which during the rotation of the Stator has flowed in clockwise of the direction arrow 49, whereas the grooves in which the "uphill" opposite side turn parts 37 of the coils added are, on the whole, are insufficiently supplied, i.e. are only partially filled with the liquid adhesive, as explained above.

In the above description is the flow of the liquid adhesive 25 which is applied to the winding 21 of the stator is applied, although only with respect to a conductor turn

344G079 ""

the coil 33 explained, but it is of course understood that these coils each have a plurality opposite Seitenwindungsteile 37, 39 in the grooves 31 of the stator and opposite winding parts 41, have the same at the opposite end faces 27, 29 of the stator in annular groups 45 _f 47 43 . It is therefore clear that the flow of the liquid adhesive 25, which is described above only with reference to the one winding head part 43 and the opposite side winding parts 37, 39 connected to it, applies overall to all opposite winding head parts and side winding parts of the winding 21 when the Stand 23 is rotated in the clockwise direction of the rotary arrow 49. The liquid adhesive 25, which is applied through the nozzle 89 to the opposite end winding parts 41 of the annular grouping 47, flows from there overall along the opposite side winding parts 37, 39 of the coils 33, which are connected to them, around the same grooves 31 of the stator 33, in which the "downhill" opposite side turn parts of the bobbins are received, the same grooves in which the "uphill" opposite side turn parts of the bobbins are received in the same manner as described above with reference to the end turn parts 43 of the bobbins, insufficient are supplied. Since the coils 33 have a plurality of opposite side winding parts 37, 39 and opposite end winding parts 41, 43 as mentioned above, there are of course gaps between them, and these gaps between the "downhill" side winding parts 39 of the coils are as a whole filled or soaked with liquid adhesive 25, when with this the grooves 31 in the stand 23, in which the "downhill" side winding parts 39 of the coils are received, are filled during the rotation of the stand in the clockwise direction of the rotary arrow 49 as described above. Furthermore, a part of the liquid adhesive, which comes out of the nozzles 85, is applied to the opposite end winding parts 41, 43 of the bobbins

-> 9 "- * ■ ■ ■

ό 4 4 ο υ / 9.

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33 drips in the annular groupings 45, 47 of the same, in the between the opposite end winding parts of Coils with limited spaces remain. The liquid adhesive 25 which, although not explained above is, through the nozzles 83, 87 onto the inner peripheral surface the opposite end winding parts 41, 43 of the bobbins 33 are delivered becomes, from there, generally in the same manner as above with respect to the supply of liquid adhesive from the nozzles 85, 87 to the outer peripheral surface of the opposite end winding parts of the coils has been described, flow. During the rotation of the stand 23 clockwise direction of rotation arrow 49 and counterclockwise direction of rotation arrow 51 can be found in more detail below described way the rotational speed of the stand in a range of maximum rotational speed or high value at which the liquid adhesive 25 is applied to the winding 21 of the stator by centrifugal displacement and a minimum rotation speed or a low value large enough to allow a total of to prevent the liquid adhesive applied to the winding from dripping off the latter, can be preselected.

When the stand 23 and the mandrel 77 together by the endless chain drive 81 in the clockwise direction of the rotary arrow 49 for have been rotated for a preselected period of time which is at least large enough for the grooves 31 of the stator to be in which the "downhill" side winding parts 39 of the bobbins 33 are received, are completely filled, 'this will Clockwise rotation ended, as shown by block 97 in the functional block diagram in FIG. 1, and the endless chain drive is switched to cause the stand and dome to rotate counterclockwise together Rotate arrow 51 to effect what is shown by block 99 in the functional block diagram in FIG. Either before or after the reverse rotation of the stand 23 is effected, at least one of the nozzles 83, 85, 87,

if necessary be brought into another preselected position with respect to the winding 21 of the stator, which is done by block 101 of the functional block diagram in FIG. 1 and by the double arrow between blocks 99 and 101 in FIG The functional block diagram shows »By turning the Stator 23 are now the side winding parts 37 of the coils 33 "downhill" side winding parts with respect to the liquid Adhesive 25, which is applied to the opposite end winding parts 41, 43 and flows onto them, with the opposite side turn portions 39 now become the "uphill" side turn portions, which is best can be seen in Figs. 4-6. While the stand 23 is rotating in the counterclockwise direction, the rotating arrow 51 is furthermore liquid adhesive 25 through the nozzles 83, 87 and 85, 89 onto the opposite end winding parts 41, 43 of the Coils 33 applied, with at least a larger amount of this supplied liquid adhesive from there along the "downhill" side winding portions 37 of the coils flows, so that the grooves 31 of the stator, in which the "downhill" side winding parts 37 are received, are filled in total, whereas the grooves of the stator, in which the "uphill" opposite side turn parts 39 of the coils are included, to that described above and in block 103 of the functional block diagram in the manner shown in Fig. 1 are insufficiently supplied. The grooves 31 of the stand 23, in which the "downhill" side winding parts 37 of the coils 33 are received are so that they are entirely filled with liquid adhesive 25 during counterclockwise rotation of the stand are the same grooves that were made with this liquid adhesive during the previously described rotation of the stand clockwise were insufficiently supplied. Of course, the gaps between the "downhill" Side winding parts 39 of the coils 33 as a whole filled or soaked with the liquid adhesive, if with

¹ Th-

this the grooves 31 of the stand 2 3 are filled, in which the "downhill" opposite side turn parts 39 of the bobbins are picked up when the stand is rotated counterclockwise. The liquid glue 25 can continue to the opposite end winding parts 41, 43 of the bobbins 33 for a preselected period of time during the Rotation of the stand 23 counterclockwise will be dispensed to the spaces between the opposite End winding parts of the coils to fill or saturate in total, and if a preselected amount of this liquid Adhesive to the winding 21 of the stator 23 during the clockwise and counterclockwise rotations of the stator has been applied, its counterclockwise rotation will be carried out along with the dispensing of the liquid adhesive completed. The above statements show that the supply of the liquid adhesive 25 from the nozzles 83, 85, 87, 89 on the opposite end winding parts 41, 43 of the bobbins 33 during the clockwise rotation of the stator and in the counterclockwise direction, all of the grooves 31 of the stand are filled equally with the liquid adhesive as well as the wrapping or impregnation of the opposite end winding parts and the opposite side winding parts 37, 39 of the winding 21 with the liquid adhesive results.

A device 105 for carrying out the above-described treatment method for a plurality of stands 23 is schematic shown in Fig. 2 and comprises at least one preheating work station or a preheating section 107, a dispensing work station or a dispensing section 75 and a post-heating work station or a reheating section 109. In the device 105 are several mandrels 77 at a mutual distance rotatably attached to a conveyor, which is shown here as an example as an endless chain drive and is designated with 111, which by known (not shown) Facilities is driven to advance the mandrels

■ Ik-

stepping on to switch to the ones attached to it Stand 23 to move through the workstations 107, 75 and 109 of the apparatus. Heating devices in the nature of electric Infraro.theizelemente 113, 115 are connected to a power source L1, L2 are connected and arranged in the preheating station 107 and the reheating station 109, around the stands 23 and to heat its winding 21 at least to preselected temperatures or within preselected temperature ranges, as they pass these workstations; The heating elements are shown here for explanatory purposes, within the scope of the invention, however, other devices for heating the stands can be used. For example heating devices electrically connected to the windings 21 of the stator 23 can be used, around the windings primarily without reference to the heating of the stator while passing through the workstations 107, 109 to heat. The preheating of the windings 21 of the stator 23 in the work station 107, which is carried out by the block 117 in the The functional block diagram illustrated is believed to be desirable to the distribution of the liquid adhesive in the windings by effectively reducing the viscosity of the liquid adhesive when the liquid adhesive drips onto the preheated opposite end winding parts 41, 43 of the windings in the work station 75 as mentioned. The endless chain drive 81, the has already been explained above, is reversible to the common rotation of the dome 77 and the stand 23 in the opposite direction Directions of the rotary arrows 49, 51 to effect. The workstation 75 of the device 105 has two such Endless chain drives 81, 81a provided, which are driven in opposite directions, around the sprocket 79 to drive the mandrels when the mandrels are moved through the work station 75, thereby the common To effect rotation of the mandrels and the uprights clockwise and counterclockwise in the manner described. The reheating of the windings 21 of the stator 23 in the ar-

■ Κ

workstation 109, illustrated by block 119 in the functional block diagram, is deemed to be desired considered because it is the gelling and hardening of the liquid applied to the windings in the dispensing station 75 Adhesive 25 causes, and when the mandrel 77 with the stand on it leaves the work station 109, is this stand cooled, which is illustrated by the block 121 in the functional block diagram in FIG. to For explanatory purposes, the workstations 107 are here, 75, 109 of the device 105, however, this device can be used with other workstations or sections be provided, for example with a cooling work station for regulating the cooling of the stands following the Reheating of the same and also with a station in which the stands are applied to the mandrels 77 and from the same be taken down. In addition, the device 105 is shown here for explanatory purposes, in the context of FIG However, other devices having only the work station 75 may be used in accordance with the invention, as discussed above Preheating and / or reheating of the stand takes place in this workstation. After the liquid has hardened Adhesive 25 that has been applied to the winding 21 of the stator 23 is more uniform and stronger Bonding between the opposite side turn parts 37, 39 and the opposite end winding parts 41, 43 of the winding is present, due to the improved networking (webbing) or stiffening (filleting) of the liquid Adhesive as it hardens within the spaces between the opposite side turn parts and the opposite End winding parts of the winding, whereby a more even and stronger connection is achieved. When the liquid Adhesive 25 is in its liquid state, as mentioned, the liquid adhesive fills all of the grooves 31 in the Stand when rotated clockwise and counterclockwise substantially completely from a total complete encapsulation or impregnation of the opposite

3A46079

set side winding parts and the opposite winding head parts with the liquid adhesive as well as the overall complete filling of the spaces between them to effect. When the liquid adhesive 25 is cured, it is completely crosslinked in the interstices as a whole of winding 21. A more detailed description of the parts and operation of device 105 follows with reference to the apparatus 299 of FIG. 25. Further, the foregoing description is concerned with explanatory purposes although with the method of treating the winding 21 of the stator 23 with liquid adhesive, in the frame of the invention, however, this treatment method and the apparatus for carrying it out can be used to treat the Winding of other electrical components can be used, for example for the winding of one wound inside out Stator or laminated core or a wound rotor or laminated core for a dynamo-electric machine or the like.

9 and 10 show another laminated core in the form of a stand 131, which has the same components as a whole and is treated generally by the same process as described above with respect to the stand 23 is, but with the exceptions listed below.

The coils 33 of the winding 21 in the stator 131 are in different winding phases or phase relationships to one another distributed or otherwise arranged. Several strand insulators or strand insulation devices in total at 133 are of known construction and are used for insulation between the coils 33 in the various Windings of the same arranged in the stator 131. The Strangisoliereinrxchtung 133 includes a plurality of generally elongated pieces 135 which are in the grooves 31 of the Stator 131 in strand insulating relationship between the opposite side turn parts 37, 39 of the coils 33 in their

T-T-

different Viicklvingsstränge are arranged, and two opposite End pieces 137 are integral with or onto the opposite ends of the elongate pieces Manner connected with these opposite end pieces in string insulating relationship between the opposite winding head pieces 41, 43 of the coils are arranged in their various winding phases. The clarity of the For the sake of the drawing, however, only one such end piece 137 is shown in FIG. 9 attached to the elongate pieces 135. Even with that arranged between the coils 33 in the different winding strands of the same in the stator 131 Strand isolator may treat the stand 131 with liquid adhesive 25 by the same treatment method which has been described above with reference to the stator 31, and / when so treated, the grooves 31 of the stand 131 because of the clockwise rotation of the stand 131 and counterclockwise as a whole in the same way Extent filled with the liquid glue. Both the elongated pieces 135 of the strand insulation device 133 as well as the opposite side turn parts 37, 39 of the coils 33 in their various strand relationships in the grooves 33 are made by the liquid adhesive 25 encapsulated as a whole, and the opposite end pieces 137 and the opposite end winding portions 41, 43 in the annular groupings thereof are also encapsulated as a whole by the liquid adhesive.

The diagram in Fig. 11 illustrates the improvement those for the slot bundle strength in the manufacture of uprights by using the method according to the invention for gluing three-phase stands compared to the known method of immersing the same three-phase Stand in a bath of liquid adhesive is achieved. Those in the diagram in Fig. 11 with A (trickled), B (trickled) , A (immersed) and B (immersed) lines indicate the strength of several groove bundles A (trickled)

and B (trickled), i.e. from opposite side turns steep 37, 39 of the winding 21 in preselected slots in the upright 23 treated according to the method according to the invention, compared to the same groove bundles A (dipped) and B (dipped) obtained by completely immersing the stand in a bath of the liquid adhesive have been treated. Although the liquid adhesive used in the method of the invention is a resin or Had a solids content which was considerably smaller than that of the bath in which the stands were immersed, it can be determined that the strengths of the groove bundles A (trickled) and B (trickled), which by the method according to of the invention have been treated are better than those of the groove bundles A (immersed) and B (immersed), and it will assumed that this greater bundle strength by the more complete and uniform filling of the grooves 31 of the Stand 23 with the liquid adhesive and through the better crosslinking of the liquid adhesive within the Interstices of the winding 21 of the stator is achieved as described above.

Regarding a three-phase or three-stranded stator, which by trickling liquid adhesive is treated on the opposite end winding parts of the winding while the stator is in is rotated only in one direction, it has been found that at least some of the slot bundles of the middle phase of the winding were insufficiently glued, i.e. fell apart, when they were removed from the stand to be tested in the manner described below. However As mentioned, the same slot bundles of the middle phase of the winding of the same three-phase stator were sufficient stuck together when treated by the method of the invention in which the liquid resin material is trickled onto the opposite end winding parts of the winding, while the stator both in one as also rotated in the opposite direction

fOu / a

. 19 ·

will. Of course, it is assumed that the greater strength of the slot bundle in the middle phase of the winding in the stand treated by the method according to the invention, by the rotation of the stand in the opposite directions, resulting in a more complete and even filling the stator grooves with the liquid adhesive as well as the improved crosslinking of the liquid adhesive within of the gaps of the winding as described above.

When comparing the strengths of the same groove bundle Windings in the stator treated by the method according to the invention and by the known method are, wherein the liquid adhesive was trickled onto the opposite end turns of the winding, during the Stand was rotated in only one direction, it has been shown that the strength of at least some groove bundles were greater by using the method according to the invention. Of course, it is believed that this is larger Bundle strength through the more complete and more even filling of the stand slots with the liquid adhesive as well by its better stiffening (webbing) in the spaces between the winding as described above.

To ensure satisfactory comparisons between the aforementioned Tests of the groove bundles were only carried out on those bundles from opposite side turn portions of the winding the grooves of the stand that were not in common, tested. To carry out the aforementioned tests, the groove bundles were these first separated from the opposite end winding parts of the windings and then from the slots in the stator removed. Each bundle of grooves was then placed on two knife-edged holders that were spaced from one another by 102 mm (four inches) on a bench press that applied an overall perpendicular force to the Middle section of the groove bundle could be exercised until

3UGC79

at least one of the opposite side winding parts of the winding in this slot bundle is separated from the other was. A suitable measuring device, which was assigned to the table press, measured the force exerted on the groove bundle / which was required to have either at least one of the opposite side turn portions of the winding in this To separate the slot bundle from the other side turn part of the winding that was contained in this slot bundle or that to bring the entire bundle of grooves to give way.

FIGS. 12-31 show a further embodiment of the invention a method for producing or manufacturing a loosely wound laminated core or stator 231 for a Dynamo-electric machine (not shown), the loosely wound laminated core having a plurality of laminations 233 which each have several grooves 235 for receiving several coils 237 of the winding 239 in the loosely wound laminated core and wherein the metal sheets and the winding are secured by a hardenable liquid adhesive 241 which can be applied to them is, can be glued to one another to form an overall one-piece mass (FIGS. 12 and 13). In doing this In the process, the metal sheets 233 are loosely arranged as a whole in a stack 243 which has two opposite end faces 245, 247 has, and the grooves 235 are through the sheets between the opposite end faces of the loose sheet stack overall axially aligned with one another (Fig. 14). Opposite parts, for example two opposite parts Side wall parts 249, 251 of the coils 237 are placed in the grooves 235 of the loose stack of sheets 243, and others Opposite parts, for example two opposite end winding parts 253, 255 of the coils, are on as a whole the opposite end faces 245, 247 of the loose stack of sheets arranged in order to thereby at least partially form the loosely wound laminated core 231 (FIGS. 13 and 15). That Loosely wound laminated core 231 is moved in preselected sequences in one direction and in another, opposite to this.

3443079

set direction, which is indicated by the clockwise and counterclockwise direction arrows 257, 259 is indicated (Fig. 12). The liquid adhesive 241 is applied to the opposite end winding parts 253, 255 of the coils 237, the liquid adhesive being applied therefrom along the opposite side turn portions 249, 251 of the coils in the grooves 235 of the loose sheet metal stack 243, in which the opposite side winding parts of the coils are received, flows when the loosely wound laminated core 231 in one and in the other Is rotated in the direction of the direction arrows 257 and 259, and part of the liquid adhesive comes out of the grooves of the loose sheet metal stack in wetting contact between the Sheets 233 in the loose sheet metal stack, all in all by capillary action (FIGS. 12 and 16-19). The liquid one Adhesive 241 contained in the coils 237 and in the loose stack of sheets 243 is hardened to form the liquid adhesive to make hard and thereby the gluing of the winding 239 and the loose sheet metal stack of the loosely wound laminated core 231 to effect the overall one-piece mass (Fig. 12).

According to FIGS. 12-20, the sheets 233 can be punched or be made in some other way from a suitable material, for example from entirely thin ferromagnetic material Sheet metal or the like., And the sheets are arranged in the loose stack 243 on an alignment mandrel 261, what in FIG. 14 and represented by block 263 in the functional block diagram in FIG. The sheets 233 can to the loose stack 243 on the alignment mandrel 261 either manually by an operator or by a conventional one Equipment (not shown) are assembled. When this way a preselected pile height on the Alignment mandrel 261 has been reached, the sheets 233 in the loose stack 243 are entirely adjacent to one another or Arranged face to face, and the grooves 235 are oriented so that they are generally axially through the loose

3U6079 "

• «a-

Sheet metal stacks extend between the opposite end faces 245, 247 thereof. In this aligned Position, the loose sheet metal stack 243 has a yoke section 265, which is located between the opposite end faces 245, 247 extends and is delimited by an outer peripheral surface 267 of the loose stack of sheets, and several in total Arc-spaced teeth 269 are formed on the yoke portion and extend from it this from a total of radially inward, so that they have grooves 235 in the loose laminated core between adjacent teeth limit, as best seen in Figures 13 and 15-17 is. The teeth 269 have several heads 271 at their free ends, some of which delimit a bore 273, which extends axially through the loose sheet metal stack 243 and the opposite end faces 245, 247 of the same cuts, and several groove entrances or gaps 27 5 are present and set between adjacent tooth tips the connection between the grooves 235 and the bore. Here, the metal sheets 233 and the loose stack 243 are closed Shown for illustrative purposes, within the scope of the invention, however, various other sheets that have other configurations and / or are put together in some other way to form a loose stack, such as a sheet metal band, that is wrapped in a loose pile can be used.

While the grooves 235 at least overall in their axial alignment in the loose sheet metal stack 243 as explained above are held, a plurality of slot liners or slot insulators 277 can be inserted into the slots, with the Groove linings have opposite devices in the form of two cuffs 279, 281, which with the opposite End faces 245, 247 are at least partially brought into contact around the grooves they intersect, around their To prevent displacement, which is best seen in FIGS. 13 and 21. The groove linings 77 are made of suitable

made of a material that has the desired dielectric Has properties such as Mylar available from E.I. du Pont de Nemours And Company, Wilmington, Delaware, is available; However, various other groove linings can be used within the scope of the invention, the have various other configurations and from others dielectric materials. When the groove linings 277 in the grooves 235 of the loose sheet metal stack 243 fastened in the manner described, the groove linings not only hold the grooves in their overall axial direction Alignment in the loose stack of sheets, but also prevent the sheets 233 from moving axially away from the loose stack, because the grooves 279, 281 with the opposite end faces 245, 247 of the loose sheet metal stack as mentioned above and are known to be in contact. One a more detailed description of the alignment of the loose sheet metal stack 243 and the assignment of the groove linings 277 can be found GB-PS 1,192,791 and US-PS 4,247,978, if necessary. The placement of the groove liners 277 in the grooves 235 of the loose sheet metal stack 243 is shown by a block in the functional block diagram in FIG. 20. It is Although not shown here for the sake of clarity of the drawing, this can be done above within the scope of the invention Arranging the groove linings 277 described in the grooves 235 of the loose sheet metal stack 243 by various suitable Establishments are made, for example manually by an operator or by conventional known equipment .

When the groove linings 277 are joined together with the loose sheet metal stack 243 and prevent its displacement, As described above, the winding 239 can be wound in the grooves 235 of the loose stack of sheets or otherwise on any suitable conventional coil winding and / or loading equipment (not shown). This introduction of the winding 239 into the loose sheet metal stack 243 is shown in the function block diagram.

¹ ^ ι ι η r <η r \ " 42" -

3UG079

diagram represented in FIG. 20 by block 285. According to the illustration in FIGS. 13 and 15, during the introduction the winding 239 in the loose stack of sheets 243 the opposite Side winding parts 249, 251 of the coils 237 of the winding received in the slot linings 277, which are shown in FIG the slots 235 of the loose stack of sheets are arranged, whereby the winding is electrically isolated from the slots, and the opposite end winding portions 253, 255 are formed in generally annular groupings around the bore 273 of the loose sheet metal stack arranged so that they are spaced from the opposite end faces 245 and 247 of the same to have. According to the schematic representation in FIG. 1, each coil 237 of the winding 239 has at least one turn or loop of a conductor 286 which, of course, is suitably painted, electrical conductive wire can act. Although not shown for the sake of clarity of the drawing, in the frame of the invention, if necessary or if necessary, the opposite end winding parts 253, 255 of the coils 237 through appropriate conventional equipment on the opposite end faces 245, 247 of the loose stack of sheets 243 the overall annular groupings are shaped and / or pressed.

Either altogether simultaneously with the introduction of the winding 239 into the loose sheet metal stack 243 or afterwards a plurality of slot wedges 287 are at least partially in the slots 235 in contact with these and with adjacent tooth tips 271 arranged to prevent the opposite side turn parts 249, 251 of the coils 237 from coming out of the Grooves to get through the groove entrances 275 between the adjacent tooth tips into the bore 273 of the loose sheet metal stack, as can best be seen in FIGS. 13 and 22. Placing the groove wedges 287 in the grooves 235 of the loose Sheet stack 243 in the manner described is represented by a block 289 in the functional block diagram in FIG. 20 shown. As shown in FIG. 22, there are two

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• £ 5-

opposite side edges 291, 293 of the groove wedges 287 so arranged to have adjacent tooth tips 271 and adjacent parts of the groove linings 277 within the grooves 235 are partially superimposed on the tooth tips, and the slot wedges extend over the slot entrances 275 between the Tooth tips to thereby hold the opposite side turn parts 249, 251 of the coils 237 in the grooves and to prevent them from leaving them through the slot entrances. The groove wedges 287 can also be arranged in the grooves 235 in this way be that they are partially superimposed on the groove liners 277 therein, with the opposite edges 291, 293 of the groove wedges are located between opposite parts of the groove linings in the grooves 235 and adjacent Tooth tips 271 extend, which can best be seen in FIG. 23. Furthermore, as shown in FIG. 23, a Strip 294 of the strand isolator is provided in groove 235, and for a more detailed explanation This strand insulation device is referred to the above explanation of the strand insulation device 133 with reference to FIG. 9 and 10 referenced. The slot wedges 287 are made from a suitable material that has the desired dielectric properties has, such as Mylar or the like., Shaped and manufactured. In the context of the invention, however, various other keyways with different configurations and made of other materials, such as magnetic keyways or the like. be used. For the sake of clarity of the drawing, it is not shown in the frame the invention can, however, by joining the slot wedges 287 and the loose sheet metal stack 243 as described above various other suitable measures take place, for example manually by an operator or by a appropriate conventional equipment. Thus, after the winding 239 has been joined together, the slot linings 277 lie and the slot wedges 287 with the loose sheet metal stack 243 in the manner described above before a structure that wrapped the loose Laminated core 231 forms.

After the loosely wound laminated core 231 has been assembled in the manner described above, a total of cylindrical mandrel in the form of the sleeve 295 or the like. are introduced into the loosely wound laminated core to its hole 273 to be axially aligned, as can best be seen in FIG. 24. The sleeve 295 is made of a metal such as Aluminum, which has a coefficient of thermal expansion that is greater than that of the material from which it is made the sheets 233 are made, and if necessary the sleeve can be anodized to give it an alumina finish or to provide an aluminum oxide coating. The sleeve 295 can be manually inserted into the bore 273 of the loosely wound laminated core 231 are inserted axially, and the outer diameter of the sleeve is predetermined smaller than the diameter of the Bore so that there is a total sliding fit between them. When the sleeve 295 is in the bore 273 of the loose wound laminated core 231 is introduced, the tooth tips 271 of the laminations 233 of the loose laminated stack 241 are therefore in the loosely wound laminated core is arranged around the sleeve and at least in the immediate vicinity of the same. When the sleeve 295 and the loosely wound laminated core 231 are heated together within a preselected temperature range, the sleeve 295 expands in axial alignment and contact with the tooth tips 271 on the sheets 233 in the loose Sheet metal stack 243 of the loosely wound laminated core 231, which is described in more detail below, in order to thereby achieve a overall radial displacement of at least some of the plates with respect to others and the axial alignment of the bore 273, at least · in part by the tooth tips is set on the loose sheet metal stack of the loosely wound core. This association between the sleeve 295 and the Bore 273 of the loosely wound laminated core 231 is represented by block 297 in the block diagram in FIG. For a more detailed discussion of the sleeve 295 and its operational characteristics, see U.S. Patent 3,845 referenced. For explanatory purposes it is shown here,

3448079 ~ ** ~

that the sleeve 295 causes the axial alignment of the bore 273 in the loosely wound laminated core 231, in the context of However, other measures can be used in accordance with the invention to effect this drilling direction.

25 and 26 is a device 299 for gluing the winding 239 and the loose sheet metal stack 243 of the loose wound laminated core 231 to the aforementioned overall one-piece mass shown schematically. The device 299 has several devices in the form of rotatable mandrels 301, each of which is used to secure at least one of the the aforementioned assemblies each consisting of a sleeve 295 and a loosely wound laminated core 231 and for rotating the same serves in the opposite directions of the rotary arrows 357, 359 in preselected sequences / when the mandrels between pre-selected switching positions in a pre-selected periodic or time-controlled sequence by means of a switching or drive device in the form of an endless chain drive 303 to which the mandrels are attached, what is explained in more detail below, can be moved or indexed by the device. The clarity However, only the movement of one of the mandrels 301 through the device 299 is described in the following for the sake of convenience.

In a loading and unloading station or chamber 305 of the device 299, the assembly consisting of the sleeve 295 and the loosely wound laminated core 231 is applied to one of the mandrels 301, which is located in the charging station; although it is not shown for the sake of clarity of the drawing is, within the scope of the invention, this assembly on the mandrel either by hand by an operator or can be applied by suitable conventional equipment. If the sleeve 295 with the loosely wound laminated core 231 has been applied to the mandrel 301 in this way, it is attached to the mandrel by a dedicated one suitable conventional device, such as a tensioning device (not shown) or the like. releasable

solidifies. It is only an assembly consisting of a sleeve and a loosely wound laminated core 231 on the mandrel 301 shown attached, within the scope of the invention, however, more than one such assembly can be attached to the mandrel will. When the assembly of the sleeve 295 and the loosely wound laminated core 231 is in this way on the mandrel 301 is releasably attached or stretched, the center line or axis of rotation of the dome is in a preselected position or arranged in a position in which it extends in a horizontal plane (not shown). Within the scope of the invention however, this axis of the mandrel can be angled to a desired degree relative to the aforementioned horizontal plane be. The assembly consisting of the sleeve 295 and the loosely wound laminated core 231 is also shown here for explanatory purposes shown releasably attached to the mandrel 301, within the scope of the invention, however, various others Devices such as an expandable chuck or the like. Associated with the mandrel instead of the sleeve for directly receiving the bore of the loosely wound laminated core for releasable fastening of the same on the mandrel and used to establish the axial alignment of the bore. Applying the assembly from the sleeve 215 and the loosely wound laminated core 231 on the mandrel in the loading and unloading station 305 of the device 299 is indicated by a block 307 in the functional block diagram in FIG Fig. 20 shown.

Each mandrel 301 has a sprocket 309 which is in drive connection with a plurality of endless chain drives 311, 313, 315, 317 in the device 299 can be brought to the mandrel in preselected sequences in the opposite directions of the Rotate arrows 257, 259 when the mandrel is indexed by the drive device 303. Here are indeed the endless chain drives 311-317 for explanatory purposes in drive connection with the sprocket 309 of the mandrel 301 to the Rotating the same in a selected direction,

3443079 '**'

within the scope of the invention, however, more or less such Chain drives in device 299 as well as other suitable conventional features in device for causing the mandrels to rotate in the opposite directions indicated by rotation arrows 257, 259 in any desired sequence of these rotations can be used if necessary.

After the assembly of the sleeve 295 and the loosely wound laminated core 231 has been releasably attached to the mandrel 301 in the loading and unloading station 305 of the device 299, as described above, the mandrel is off
of this station by the operation of the drive means through a preheating station or chamber 319 of the apparatus
moves, and a set of heating devices in the form of electric or infrared heating elements 321 is in the preheating station to transfer heat to this assembly when it is
is moved through the preheating station.
Of course, the mandrel 301 can be moved through any number of preselected indexing positions within the preheating station 319 as desired or required in order to increase the temperature of the assembly consisting of the sleeve 295 and the loosely wound laminated core 231 on the mandrel to at least a preselected value. It is not shown here for the sake of clarity of the drawing, but devices such as at least one further chain drive or the like can be used. similar to chain drives 311-317
in the preheating station 319 of the device 299 for driving the sprocket 307 of the mandrel 301 to cause its rotation in at least one of the opposite directions indicated by the rotary arrows 257, 259, as the mandrel is through at least some of the indexing positions moved within the preheating station. As
above expands due to the difference in the thermal expansion coefficients of the metals of the sleeve 295 and the
Sheets 233 the sleeve radially outwards until it rests against the

• 9o ·

Tooth tips 271 of the sheets 233 in the loose sheet stack 243 of the loosely wound laminated core 231 when it is passed through the heating devices 321 in the preheating station 319 of the device 299 is heated in order to thereby effect the axial alignment of the bore 273 in the loosely wound laminated core. Since the metal sheets 233 are only loosely held by the groove linings 277 in the loose sheet metal stack 243, as above has been explained, at least some of the sheets are generally radial or adjustable with respect to others in the loose sheet metal stack can be moved when the heat generated Expansion and the axial alignment of the sleeve 295 on the tooth tips 271 of the sheets is effected. The touch the sleeve 295 with the tooth tips 271 of the metal sheets 233 not only affects the alignment of the bore 273 in the loosely wound laminated core 231, but also serves to keep these tooth tips free of any liquid adhesive 241 which is applied to the winding 239 in the manner explained below. Preheating the assembly from the sleeve 295 and the loosely wound laminated core 231 on the mandrel 301 as they move through the preheating station 319 of device 299 is represented by a block 323 in the functional block diagram in FIG. and the axial alignment of the bore 273 in the loosely wound laminated core 231 is through a further block shown in the block diagram in FIG. Of course, preheating will affect the loosely wound Laminated core 231 not only does the above-explained bore alignment process of the sleeve 295, but it is also desirable that the To improve the flow of the liquid adhesive 241 through the winding 239 to which it is applied, which follows is explained in more detail.

Subsequent to the preheating of the assembly consisting of the sleeve 295 and the loosely wound laminated core 231 on the mandrel In the preheating station 319 in the manner described above, the drive device 303 is actuated to remove the mandrel

3443079 '

■ <Μ ·

the preheating station into a station or chamber 327 of the apparatus 299, in which the liquid adhesive is dispensed, to move on. As shown in Fig. 12, there are two Sets of reciprocable nozzles 329, 331, 333, 335 in the dispensing station 327 for dispensing the liquid adhesive 241 onto the opposite winding head parts 253, 255 the winding 239 is provided on the loosely wound laminated core 231. When the mandrel 301 with the sleeve 295 and the loosen wound laminated core 231, which are fastened on it, is moved into its position in the delivery station 327, that is Chain wheel 309 in drive connection with the endless chain drive 311, whereby the mandrel is rotated clockwise, which is indicated by the rotating arrow 257 and represented by a block 337 in the function block diagram in FIG and the dispensing nozzles 329, 331, 333, 335 can be adjusted by suitable conventional means (not shown) in preselected positions with respect to the opposite end winding parts 253, 255 of the winding 239 on the loosely wound laminated core 231 are moved, as in Fig. 12 and also by a block 339 in the functional block diagram is shown in FIG. Of course, the nozzles 329-335 can be advanced in their preselected Positions either forwards, afterwards or simultaneously with the further movement of the dome 301 with the Sleeve 295 and the loosely wound laminated core 231, which are located on it, in its preselected position in the delivery station 327 can be moved. In these preselected positions, the nozzles 329, 333 are near the inner peripheral surface the opposite end winding parts 253, 255 of the coils 237 of the winding 239 are arranged in such a way that they are at a total distance from the adjacent end faces 245 or 247 of the loosely wound laminated core 231, and the nozzles 331, 335 are near the outer peripheral surface of the opposite one End winding parts of the winding in the opposite annular groupings of the same arranged so that they are axially spaced between the opposing

set free ends of these groupings and the opposite End faces of the loosely wound laminated core are arranged. These nozzles 329-335 pre-selected positions for dispensing the liquid adhesive 241 onto the opposite end winding parts 253, 255 of the spools 237 of Windings 239 are specified here for explanatory purposes, but less or more can be used within the scope of the invention such nozzles are used and in various other preselected positions with respect to the opposing winding head parts the coils of the winding are arranged. The liquid adhesive 241 can be used here for explanatory purposes be a solvent-based paint of the formula Y390PS (with a solids content ranging between total about 9% and about 38%) available from the Sterling Division of Reichhold Chemicals, Inc., Sewickley, PA, Within the scope of the invention, however, various other liquid adhesives, such as paints on solvent-based or water-based or the like. and with either the same or different solids contents as mentioned above.

With nozzles 329-335 in their preselected advanced positions and mandrel 301 with assembly from the sleeve 295 and the loosely wound laminated core 231, which is attached to it, together in a clockwise direction of the rotary arrow 257 is rotated, the liquid adhesive 241 from the nozzles with a preselected flow rate onto the opposite end winding parts 253, 255 of the coils 237 the winding 239 of the loosely wound laminated core 231 applied or dripped, as indicated by a block 341 in the Function block diagram is shown in Fig. 20, and within the scope of the invention, the flow rate from these nozzles be the same or different. In addition, within the scope of the invention, the rotation of the dome 301 can be clockwise then the nozzles 329-335 are arranged in their preselected positions, which is indicated by the double arrow

between blocks 337, 339 in the functional block diagram is indicated in FIG. To simplify and make clear the following description of the flow of the liquid adhesive 241 on the opposite Winding head parts 253, 255 of the bobbins 237 are delivered, is only one winding head part 255, which is attached to the opposite Side winding parts 249, 251 of one of the coils 237 is formed, schematically on the loosely wound laminated core 231 in FIG Assignment to the nozzle 335 during one revolution of the loosely wound laminated core is shown in FIGS. 16-18. For explanation For the purposes of this, it is assumed that a droplet is liquid Adhesive 241 is discharged from the nozzle 335 onto the overall arcuate middle section of the winding head part 255 is when this is rotated with the loosely wound laminated core 231 in the clockwise direction of the rotary arrow 257, which is on can best be seen in FIG. The liquid adhesive 241 coming out of the nozzle 335 onto the central portion of the winding head part 255 released would seek to be instantaneously in total by capillary action and gravity opposite directions, shown by the flow arrows in Fig. 16 along the end winding part, to the opposite directions Side winding parts 249, 251 to flow, on which it is formed when the loosely wound laminated core is not in the Would be rotated clockwise. However, if the loosely wound laminated core from its position in Fig. 16 clockwise is rotated by part of a revolution, for example in the position shown in FIG. 17, it can be seen that in this rotational position of the loosely wound laminated core the opposite side winding part 251 in a lower or "downhill" position with respect to the horizontal as the side turn portion 249 which is "uphill" of which is arranged. Due to the clockwise rotation of the loosely wound laminated core 231 and due to the fact that the liquid adhesive 241 discharged onto the winding head part 255 does not go along it in an "uphill" Direction can flow, at least a larger one flows

• Π-

Amount of this liquid adhesive along the end winding portion to the lower or "downhill" side turn portion 251 past the opposite end face 247 of the loosely wound laminated core and in its groove 235, in which the "downhill" opposite side turn portion 251 is received. Because the aforementioned larger Amount of the liquid adhesive 241, which is dispensed onto the winding head part 255, flows into the stator groove 235, in which the "downhill" side turn part 251 is received, this groove is made with the liquid adhesive total filled, which flowed into it during the clockwise rotation of the loosely wound laminated core 231, whereas only a smaller amount of the liquid adhesive flows into the groove 235, in which the "uphill" opposite one Cross-turn portion 249 is added, creating the groove in which the "uphill" opposite cross-turn portion 249 is inadequately cared for. When the loosely wrapped laminated core 231 by another Part of a revolution is rotated, as is shown by way of example in Fig. 18, the "uphill" achieved the opposite Seitsnwindungteil 249 finally a "downhill" Position with respect to the opposite side turn part 251. Since the aforementioned larger amount of the liquid adhesive 241, which has been dispensed onto the winding head part 255, has flowed into the stator groove 235, in which the "downhill" side winding part 251 is received as mentioned, however, only a smaller one remains Amount, if any, of the liquid adhesive to flow from the winding head part into the stator groove 235 in the the "uphill" side turn portion 249 is included, available even if the "uphill" cross-turn part 249 to the “downhill” position with respect to the “downhill” opposite side turn portion 251 is rotated as shown in FIG. In view of this, it is believed that only the grooves 235 of the loosely wound Laminated core 231, in which "downhill" side winding parts 251 of the coils 237 are received, overall with the

ο 4 ^L i ο υ / y

liquid adhesive 241 are filled, which is in it during the rotation of the loosely wound laminated core in the clockwise direction of the directional arrow 257 flows, whereas the grooves 235, in which "uphill" opposite side winding parts As mentioned, 249 of the coils are insufficiently supplied, i.e. only partially with the liquid adhesive be filled.

The above explanation of the pouring of the liquid adhesive 241, which is applied to the winding 239 of the loosely wound laminated core 223, only relates to a conductor turn 286 of one of the coils 237, but it will of course be understood that these coils each have several have opposite side winding parts 249, 251 in the grooves 235 of the loosely wound laminated core and that them a plurality of opposite end winding parts 253, 255 in their annular groupings on the opposite end faces 245, 247 of the loosely wound laminated core are assigned. Therefore, the flow of the liquid adhesive 241 applies, that above with reference to only one end turn portion 255 and the opposite side turn portions 249, 251 that go with it have been connected, has been described, in total for all such opposite end winding parts and side winding parts of the winding 239 applies when the loosely wound laminated core 231 is clockwise as indicated by the rotary arrow 257 is rotated. The liquid adhesive 241, which is applied through the nozzle 331 to the winding head parts 253 of the bobbins 237 is, flows from these from a total of along the opposite side turn parts 249, 251 of the coils, which therewith are connected to fill the same grooves 235 of the loosely wound laminated core 231 as a whole, in which the "downhill" opposite side winding parts 251 of the coils are received, while the same grooves in which the "uphill" side turn portions 249 of the coils were added are inadequate in the manner described above with reference to the opposite end turn portions 255 of the coils are supplied. Since the coils 237 of the winding 239

inuhrisr © ont.cjogengciaet '/ to side winding parts 249, 251 and opposite end winding parts 253, 255, as it has been described above, there are spaces between them, of course, and these spaces are between the "downhill" opposite side turn parts 251 of the coils are filled with the liquid adhesive 241 or soaked in total, after the grooves with it 235 have been filled in the loosely wound laminated core 231, in which the "downhill" side winding parts 251 of the coils are added ^ and that during the rotation of the stand in the clockwise direction of the rotary arrow 257, as above has been described. Furthermore, some of the liquid adhesive remains, which flows from the nozzles 331, 335 onto the opposite one Winding head parts 253, 255 of the bobbins 237 in whose annular groupings has dripped, in the interstices, formed between the winding head parts of the coils are. The liquid adhesive 241, which through the nozzles 329, 333 on the inner peripheral surface of the winding head parts 253, 255 of the coils 237 is discharged flows therefrom in the same way overall as described above with reference to FIG liquid resin material has been described, which is passed through the nozzles 331, 335 of the outer peripheral surface of the end winding parts is fed to the bobbins. While the loosely wound laminated core 231 is rotating in the clockwise direction of the rotating arrow 257 and in the counterclockwise direction of the rotary arrow 259 can, according to the following more detailed description, the rotational speed of the loosely wound laminated core within a range of a maximum rotational speed or a high value at which the displacement of the laminated core, which is loosely wound on the winding 239, is applied liquid adhesive 241 is avoided altogether or at least minimally due to the effect of centrifugal force, and a minimal one Rotation speed or a low value that is large enough to prevent the dripping of what is deposited on the winding To prevent or at least minimize liquid adhesive of the same total, are preselected.

■ η-

The flow of the liquid adhesive 241, which is applied to the opposite end winding parts 253/255 of the coils 237, from these along the opposite side winding parts 249, 251 of the coils into the grooves 235 of the loosely wound laminated core 231, in which the opposite side winding parts of the coils are included,
is indicated by a block 343 in the functional block diagram
shown in FIG.

The liquid adhesive 241, which is in the grooves 235 of the lot> e
wound laminated core 231 flows, is of course received in the groove linings 277 and the groove wedges 287, which in the grooves overall around the opposite
Side winding parts 249, 251 of the coils 237, which in the
Grooves are received, are arranged as has been described above. Part of the liquid adhesive 241 thus received in the groove linings 277 and the groove wedges 287 within the grooves 235 escapes from these between the opposite edges 291, 293 of the groove wedges
and the overlying parts of the groove linings, so that it emerges outwardly into the grooves of the loosely wound laminated core 231 and comes into contact with the laminations 233 which delimit these grooves, as shown in FIG
is. This oozing liquid adhesive 241 flows
then at least partially from the grooves 235 as a whole
Capillary action between at least some of the adjacent surfaces of the metal sheets 233 of the loosely wound laminated core 231 and wets them while the assembly of the sleeve 295 and the loosely wound laminated core is rotated on the mandrel 301 in the direction indicated by the rotary arrow 257. During this wetting of the sheets
233 by capillary action, the liquid adhesive 241 flows out of the grooves 235 radially outward to the circumferential surface 267 of the loosely wound laminated core 231 and thereby at least partially wets the metal sheets in the yoke section 265 and between the teeth 269. As mentioned, holds

• 9S-

however, the aligning contact of the sleeve 295 with the tooth tips 271 of the metal sheets 233 in the loosely wound laminated core 231, these tooth tips are free from seeping out liquid adhesive 241, which flows out of the grooves 235 between the metal sheets by capillary action and wets them. It is believed that the above-explained wetting of the sheets 233 takes place mainly by capillary action, but it is also assumed that the rotation of the loosely wound laminated core 231 in the direction of the rotary arrow 257 at least the flow of the liquid resin material 241 between the sheets and the wetting of the same is promoted. The one described above The process of wetting the liquid adhesive 241 between the metal sheets 233 resting against one another is complete a block 245 is shown in the point ion s diagram in FIG.

When a preselected amount of the liquid adhesive 241 is on the winding 239 from the nozzles 329-335 on top has been applied in the manner described, this application of the liquid adhesive can if necessary or desired for a preselected period of time to be terminated to give the liquid adhesive time out of the gaps of the opposite To get winding head parts 253, 255 of the winding into the grooves 235 of the loosely wound laminated core 231, in which the opposite side turn portions 249, 251 of the winding are received as described above is. During this dwell time, it is of course desirable to stop the assembly of sleeve 295 and the loosely wound laminated core 231 on the mandrel 301 in the direction of the rotary arrow 257 to maintain any To prevent or at least minimize loss of liquid adhesive 241, as described above. At the At the end of the aforementioned preselected dwell time, the dispensing of liquid adhesive 241 from the nozzles 329-335 can commence winding 239 can be resumed if necessary. Although only a dwell time is explained here between the periods, in which the liquid adhesive 241 is dispensed onto the winding 239 of the loosely wound laminated core 231, within the scope of the invention, however, this dwell time can be

3 A 4 ο Ο 7 9

or more than one such residence time can be used.

If the assembly of the sleeve 295 and the loosely wound laminated core 231 on the mandrel 301 is common with this by the endless chain drive 311 in the clockwise direction of the rotating arrow 257 has been rotated for a preselected amount of time at least long enough to allow the grooves to be filled 235 in the loosely wound laminated core, in which the "downhill" side winding parts 251 of the coils are received, and at least partially the mutually facing surfaces of the sheets 233 in the loose stack To wet 243 of the loosely wound laminated core, the drive device 303 of the device 299 is actuated to the To move the mandrel with the assembly on it to the next following position in the delivery station 327, which is best seen in FIG. Of course, before this further movement of the mandrel 301, the delivery of the liquid glue 241 is terminated from the nozzles 329-335, and these nozzles are released from their advanced dispensing positions retracted to their retracted positions (not shown) to permit the advancement of the mandrel in the dispensing station 327 of the device 299 to enable. During this further movement of the mandrel 301 by the drive device 303 in the delivery station 327 of the device 299, the sprocket 309 on the mandrel is disengaged from the endless chain drive 311, thereby stopping the clockwise rotation of the mandrel, indicated by a block 347 in the functional diagram is indicated in Fig. 20, and the sprocket is then re-engaged with the endless chain drive 313 brought to thereby rotate the mandrel in the dispensing station in the counterclockwise direction of the rotary arrow 259. This reversal of Rotation of the mandrel 301 with the assembly on it consisting of the sleeve 295 and the loosely wound laminated core 231 in the delivery station 327 is represented by a block 349 in the functional diagram in FIG. It is Of course, it is desirable to remove the mandrel 301 from the position

in which it is rotated in the direction of the rotary arrow 257 to move to the next position in which the rotation of the Doms in the direction of rotary arrow 259 is done to avoid any loss of liquid adhesive 241 from the loosely wound To avoid laminated core 231 during this further movement or at least to minimize it.

End either before, after, or all at the same time as the reverse rotation of the assembly begins from the sleeve 295 and the loosely wound laminated core 231 on the mandrel 301 in the counterclockwise direction of the rotary arrow 259 in the delivery station 327 of the device 299 can be another set of nozzles 329a, 331a, 333a, 335a from retracted positions in selected advanced positions are advanced by suitable conventional means (not shown) and thereby adjustable on the opposite winding head parts 253, 255 of the winding 239 on the loosely wound laminated core be positioned. The nozzles 329a-335a are designed and arranged in the same way as the nozzles 329-335 Shown for illustrative purposes, however, it is possible within the scope of the invention to have either more or fewer such To use nozzles in the next indexing position of the dome 301 in the delivery station 327 and these nozzles either at the same preselected locations explained above with reference to the winding 239 of the loosely wound laminated core 231 are, or to be arranged in other preselected positions. The location of the nozzles 329a-335a in the dispensing station 327 is represented by a block 351 in the puncture diagram in FIG. Since the nozzles 329a-335a with respect to the loose wound laminated core 231 can be arranged before the start of the reverse rotation of the same, is a double arrow between blocks 349 and 351 in the function diagram in FIG. 20.

This reverse or counterclockwise rotation of the assembly consisting of the sleeve 295 and the loosely loaded

3443079

wound laminated core 231 on the mandrel 301 in the delivery station 327 of the device 299, the side winding parts 249 of the coils 237 now become the "downhill" side winding parts with respect to the liquid adhesive 241 which is applied to the winding head parts 253, 255 and to
this flows, whereas the opposite side turn parts 251 now become the "uphill" side turn parts, as can best be seen in FIGS. 16-18. During the rotation of the dome 301 in the counterclockwise direction of the rotary arrow 259, the liquid adhesive 241 is applied through the nozzles 329a, 333a and 331a, 335a to the opposite ones
Winding head parts 253, 255 of the coils 237 are applied, as indicated by a block 353 in the functional diagram in FIG. 20
is shown, and, at least a larger amount of this supplied liquid adhesive flows from the opposite end winding parts along the "downhill" side winding parts 249 of the coils, so that the grooves 235 of the loosely wound laminated core 231 are entirely filled, in
which the "downhill" side winding parts 249 are received, whereas the grooves of the loosely wound laminated core, in which the "uphill" opposite side winding parts 251 of the coils are received, on the same
In a manner as explained above and shown as function diagram block 355 in FIG. 20, they are insufficiently supplied. These
Grooves 235 of the loosely wound laminated core 231, in which the "downhill" side winding parts 249 of the coils 237 are received, so that they can with the liquid adhesive 241
are completely filled during the rotation of the loosely wound laminated core in the counterclockwise direction, are the same
Grooves, which are insufficient with during the previously described rotation of the loosely wound laminated core in the clockwise direction
the liquid adhesive were supplied. Of course, the spaces between the "downhill" side winding parts 2'49 of the coils 237 are entirely filled or saturated with the liquid adhesive when the grooves 235
of the loosely wound laminated core 231, in which the "mountain

ftbwJSrticjon "iio.ltenwindungstei.le 249 of the coils added are filled with the liquid adhesive during the counterclockwise rotation of the loosely wound laminated core will.

During the above-described dispensing of the liquid adhesive 241 onto the opposite end winding parts 253, 255 of the winding 239 of the loosely wound laminated core 231, while this together with the mandrel 301 counterclockwise is rotated, escapes some of this liquid adhesive in the groove linings 277 and the groove wedges 287 surrounding the opposite side turn portions 249, 251 of the winding within slots 235, by seeping out between the opposite edges 291, 293 of the slot wedges and those superimposed on them Share the groove linings so that this adhesive exits into the grooves of the loosely wound laminated core and with the Sheets 233, which delimit these grooves, comes into contact, as has been mentioned above with reference to FIG. 19. This Liquid adhesive 241 that seeps out is then at least partially out of the grooves 235 as a whole by capillary action in wetting contact between the adjacent surfaces of the metal sheets 233 of the loosely wound laminated core 231 arrive, while the assembly of the sleeve 295 and the loosely wound laminated core on the mandrel 301 in the is rotated direction indicated by the rotary arrow 259. During this wetting of the sheets 233 by capillary action The liquid adhesive 241 is likely to emerge from the grooves 235 radially outwardly to the circumferential surface 267 of the loosely wound laminated core 231 flow and thereby at least partially the laminations in the yoke section 265 and wet between the teeth 269 of the same. It is assumed that this wetting of the metal sheets explained above 233 occurs mainly by capillary action, but it is also believed that the rotation of the loosely wound Laminated core 231 in the direction of the rotary arrow 259 at least

344G079 "

• / (03 ·

helps the liquid adhesive 241 to come into wetting contact between the sheets. It is also assumed that that the wetting process of the liquid adhesive 241 with respect to the sheets 233 in the loosely wound Laminated core 231, which occurs during the counterclockwise rotation of the loosely wound laminated core, in addition to the wetting process of these sheets through the liquid adhesive, which occurs during the rotation of the loose wound laminated core occurs clockwise, which is above

has been explained. The wetting process of the liquid adhesive 241 between the sheets 233 in the loosely wrapped Laminated core 231 during its counterclockwise rotation is represented by a function diagram block 357 in FIG Fig. 20 shown.

Of course, during the above-explained rotation of the loosely wound laminated core 231 in the counterclockwise direction In the dispensing station 327 in the device 299, the application of the liquid adhesive 241 to the winding 239 of the loosely wound laminated core from the nozzles 329a-335a, if necessary or if necessary, for a preselected dwell time finished and then resumed so the liquid glue has a chance to get out of the gaps of the opposite end winding parts 253, 255 of the winding to get into the grooves 235 of the loosely wound laminated core, in which the opposite side turn parts 249, 251 of the winding are added, as detailed above with reference to the rotation of the loosely wound Laminated core has been explained clockwise in the delivery station of the device. During this dwell time it is desirable to maintain the rotation of the loosely wound laminated core 231 in the direction of the rotation arrow 259, and, although only a dwell time has been explained here between the periods in which the liquid adhesive 241 on the winding 239 of the loosely wound laminated core while rotating it counterclockwise

is / is θθ possible within the scope of the invention, omitting this dwell time or using more than one such dwell time.

The liquid adhesive 241 can continue to be on the opposite Winding head parts 253, 255 of the coils 237 for one preselected time during the rotation of the loosely wound laminated core 231 in a counterclockwise direction, to completely fill or saturate the spaces between the opposite end winding parts of the coils, and, when a preselected amount of this liquid adhesive is applied to the winding 239 of the loosely wound laminated core 231 is applied during both the clockwise and counterclockwise rotation of the stand has been, the dispensing of the liquid adhesive can be stopped. In view of the above it can be seen that the supply of the liquid adhesive 241 from the nozzles 329-335 and 329a-335a to the opposite Winding head parts 253, 255 of the coils 237 during the clockwise rotation of the loosely wound laminated core and in the counterclockwise direction overall not only the equalization of the filling of all the grooves 235 of the loosely wound Causes the sheet metal packet with the liquid adhesive, but also the total complete filling of the same as well as the Encapsulation or impregnation of the opposite end winding parts and the opposite side winding parts 249, 251 of winding 239 with the liquid adhesive. During the rotation the assembly of the sleeve 295 and the loosely wound laminated core 231 on the mandrel 301 in the two opposite ones Directions of the rotary arrows 257, 259 in the dispensing station 327 of the device 299 is the liquid adhesive 241 passed from the area within the groove linings 277 and the groove wedges 287 into the grooves 235, which through the Sheets 233 of the loosely wound laminated core are limited, and from this a total of capillary action in wetting Contact between the sheets. Since the liquid adhesive

• / (OS-

fabric 241 on the opposite end winding parts 253, 255 of the winding 239 is applied and from these along the opposite side winding parts 249, 251 into the Grooves 235 of the loosely wound laminated core 231 flows, in which the opposite side winding parts are received are, the opposite end faces 245, 247 of the stack of sheets 243 of the loosely wound laminated core remain as a whole free of this liquid glue. Since only a preselected volume of liquid adhesive 241 is in the loose wound laminated core 231 is distributed, as described above, the circumferential surface 267 of the laminated stack remains 243 of the loosely wound laminated core entirely free of the liquid adhesive when wetting the adjacent ones Surfaces of the sheets 233 in this stack.

When the winding 239 and the stack of sheets 243 are soaked with the liquid adhesive 241 that protrudes on them Is applied in the manner described, the drive device 303 is set in motion in a time-controlled manner in order to move on of the dome 301 with the sleeve 295 and the loosely wound laminated core 231, which are attached to it the delivery station 327 of the device 299 through several preselected indexing positions in a gelation station or chamber 359 of the device, as can best be seen in FIGS. 25 and 26. In the gelling station 359 is another set of heating devices in the form of electric or infrared heating elements 361 arranged to generate heat on the assembly consisting of the sleeve 295 and the loosely wound laminated core 231, which are fastened on the mandrel 301, while moving through their preselected indexing positions is moved in the gelling station. A preselected temperature set in the gelling station 359 by operation of the heating devices 361 therein is of course at least large enough to allow the gelling of the liquid To effect adhesive 241, which is in the winding 239 and in the loose sheet metal rod 243 of the loosely wound sheet metal

• / fO <b -

Package 231 is included. During this gelling of the liquid Adhesive 241, which is contained in the loosely wound laminated core 231, is at least a part of the solvent, with which the resin particulate material of the liquid adhesive is mixed, driven off or evaporated to thereby gelling the liquid adhesive. While the mandrel 301 with the sleeve 295 and the loosely wound laminated core 231, which are attached to it, the gelling station 3 59 passes, the sprocket 309 of the dome is optionally with endless chain drives 315, 317 engaged in the preselected indexing positions of the mandrel in the gelling station are provided to thereby selectively rotate the dome in its preselected indexing positions clockwise and optionally counterclockwise to effect any loss of liquid adhesive 241 from the loosely wound To prevent or at least minimize the laminated core. There are only two preselected switching positions of the mandrel 301 has been shown in the gelling station 359 to simplify the drawing, within the scope of the invention however, any number of such preselected indexing positions can be used in the gelling station, which is large enough to provide sufficient time for the liquid adhesive to gel 241, which is contained in the loosely wound laminated core 231, at least at the preselected temperature, which is achieved by the heating devices 361. Furthermore, it is also possible within the scope of the invention, each To use number of endless chain drives to cause the rotation of the mandrel 301 in opposite directions, when this is arranged in its various preselected indexing positions in the gelling station 359, or to use just a chain drive to cause the mandrel to rotate in only one direction while it is moving moved through the various preselected indexing positions in the gelling station. The gelling of the liquid Adhesive 241 in the loosely wound laminated core 231

3UG079 "

• / 107-

After passing through the gelling station 359, the device length 299 is represented by a function diagram block 363 in FIG.

After the liquid adhesive 241 has gelled in the loosely wound laminated core 231 onto the one described above Way, the drive device 303 is set in motion in a time-controlled periodic manner in order to continue or continue switching movement of the dome 301, on which the sleeve 295 and the loosely wound laminated core 231 are attached, from the Gelling station 359 of the device 299 by several preselected To effect indexing positions in a curing station or chamber 365 of the device, which is best shown in 25 and 26 can be seen. In curing station 365 is another set of heating devices in the form of electrical or infrared heating elements 367 in heat transfer relationship with the assembly of the sleeve 295 and the loosely wound laminated core 231 arranged on the mandrel 301, if this assembly by its preselected setting or Switching positions in the curing station is moved. A preselected temperature that is set in the curing station 365 achieved by the operation of the heaters 367 therein is, of course, large enough to allow curing to effect the gelled liquid adhesive 241 in the winding 239 and in the loose sheet metal stack 243 of the loose wound laminated core 231 is included, and the number of preselected setting positions through which the mandrel 301 is moved in the curing station, results in a period of time which is long enough for the satisfactory curing of the liquid To effect the adhesive at least at the preselected temperature which is reached in the curing station 365. During this hardening or hardening of the liquid adhesive 241 contained in the loosely wound laminated core 231 any solvent contained in the liquid adhesive will of course be driven off or evaporated. As mentioned above, it is assumed that the

• / ΙΟ? ·

Rotation of the loosely wound laminated core 231 in the opposite direction Directions, at least when the liquid adhesive 241 is dispensed to them, a more even distribution causes this liquid adhesive in the loosely wound laminated core and also the application of the necessary preselected amounts or volumes of the liquid adhesive allowed to make this more even distribution of the same to ensure. During the passage of the dome 301 through the preselected setting positions of the same in the curing station 365 is therefore assumed that a more even and stronger bond between the opposite Side winding parts 249, 251 and the opposite end winding parts 253, 255 of the winding 239 due to the improved crosslinking or stiffening of the liquid adhesive 241 in the spaces between the opposites End winding parts and the opposite side winding parts of the winding, making them more even and stronger bonding is achieved, is effected. When, as mentioned above, the liquid adhesive 241 is in its liquid state The liquid resin material fills all of the grooves 235 in the loosely wound laminated core 231 upon rotation the same clockwise and counterclockwise altogether, making the total complete encapsulation and impregnation of the opposite side winding parts 249, 251 and the opposite end winding parts 253, 255 of the Winding 239 as well as the overall complete filling of the interstices of the same caused by the liquid adhesive will. When the liquid adhesive 241 has hardened, it fills or stiffens the interstices of the winding 239 as a whole complete, thereby strengthening the winding and preventing it from moving when connected to electrical Current is supplied in order to effectively reduce the short-circuiting of the winding caused by dragging on from each other End winding parts and side winding parts of the winding the supply of electrical power can occur. As the liquid adhesive 241 wrapped the grooves 235 of the loosely Laminated core 231 completely fills out, both

344G079

with slot liners 277 and slot wedges 287 disposed therein and without these slot liners in the slots, As has been explained above, these groove linings and groove wedges are after the hardening of the liquid adhesive stuck in place by the hardened liquid adhesive and prevented from moving within the grooves. Since further the liquid adhesive 241 between the sheets 233 of the loose stack 243 in the loosely wrapped If the laminated core 231 penetrates and these are completely wetted as a whole, after the liquid adhesive has hardened the adjacent sheets through the hardened liquid Glue firmly connected between them, so that the sheets are prevented from shifting and thereby the axial alignment of the bore 273 in the loosely wound laminated core is maintained. So that serves The liquid adhesive 241 cures in the loosely wound laminated core 231 in order to connect its components to one another to an overall uniform mass, with the opposite end faces 245, 247 and the circumferential surface 267 of the sheet metal stack 243 of the loosely wound sheet metal package remain entirely free of liquid adhesive, as described above, and the curing of the liquid adhesive to cure the same, if loose wound laminated core passes through the curing station 365 of the device 299 is represented by a functional diagram block 369 shown in FIG.

When the liquid adhesive 241 has hardened, so that it attaches the parts of the loosely wound laminated core 231 to the above-described Way to the overall uniform mass connects together, the drive device 303 is on the timed, periodic basis set in motion around the mandrel 301 on which the sleeve 295 and the loosely wound Laminated core are attached, from the hardening station 365 through several setting positions in a cooling station or chamber 371 to move in the device 299. During the transit

3 /, /, 607G

In the course of the now firmly bonded, loosely wound laminated core 231 through the cooling station 371, the temperature of the assembly becomes from the sleeve 295 and the loosely wound laminated core, of course, reduced to handling and removing of the assembly of the mandrel 301 by an operator when it comes from the cooling station to the Loading and unloading station 305 of device 299 has returned. As mentioned above, a suitable conventional Equipment used to facilitate the insertion and removal of the assembly from the sleeve 295 and the loosely wound Laminated core 231 with respect to the dome 301 in the loading and Unloading station 305 of the device 299 to effect. Cooling the assembly from the sleeve 295 and the loosely wound Laminated core 231 as it passes through the cooling station of device 299 is represented by a functional diagram block 373 in FIG. 20, and the removal of the assembly from the mandrel 301 in the loading and unloading station 305 represented by a functional diagram block 375 in FIG. It is, albeit the simplicity of the drawing not shown for the sake of the sake, a suitable conventional device of the cooling station 371 of the device is possible 299 to be assigned in order to introduce cooling air into this and thus the cooling of the assembly from the sleeve 295 and the loosely wound Laminated core 231, which are fastened on the mandrel 301, to accelerate as they pass through the cooling station. Of course, the sleeve 295 can be loosely wound from the bore 273 of the now firmly glued together Laminated core 231 are removed after they have been removed in the loading and unloading station 305 of the device 299, and this removal of the sleeve is illustrated in a function diagram block 377 in FIG.

Referring again to the drawings generally and in light of the foregoing, as one embodiment According to the invention, a method for operating the device 299 for gluing the loosely wound laminated core

3443079 -

• / M / t ·

231 with liquid adhesive 241 2u of the total one-piece Dimensions described (Fig. 12 and 25-26). The apparatus 299 has at least work stations 319, 327, 365 and two Sets of devices in the form of nozzles 329-335 and 329a-335a, by means of which the liquid adhesive can be fed, (Figures 25 and 26). The loosely wound laminated core 231 has the laminations 233, which as a whole are adjacent to one another in the stack 243 are arranged, wherein the stack of sheets has the opposite end faces 245, 247 and the grooves 235, the extend axially through the sheet stack between its opposite end faces and the winding 239 of the loosely wound laminated core (Fig. 12-15). the Winding 239 has coils 237 which have at least one conductor turn 286 with the opposite side turn portions 249, 251 of the coils are received in the grooves 235 of the sheet metal stack 243 and the opposite End winding parts 253, 255 of the coils as a whole in the annular groupings thereof on the opposite ones End faces 245, 247 of the stack of sheets are arranged (Fig. 13 and 15). When performing this procedure will the loosely wound laminated core 231 progressing between several preselected setting positions at least through the Workstations 319, 327, 365 of the device 299 moved, and the loosely wound laminated core is preheated as it moves through work station 319 of the apparatus (Figures 25 and 26). The loosely wound laminated core 231 is in at least one of its preselected setting positions in rotated in one direction and in at least one further preselected setting position in one direction to the one opposite further direction rotated when the loosely wound laminated core through the work station 327 of the device 299 is moved and the dispensers or nozzles 329-335 and 329a-335a are in the work station operated to apply the liquid adhesive 241 to the opposite end winding 253, 255 of the reels 237 of the loosely wound To apply sheet metal stacks, during at least

3U6079 - each -

• Ml-

at least part of the rotation of the loosely wound sheet pakot in one and the other direction in the at least one and the other preselected setting position of the same in the further work station of the device (Fig. 26). The liquid adhesive 241 flows from the opposite one End winding parts 253, 255 of the coils 237 as a whole along the opposite side winding parts 249, 251 of the Coils from in the grooves 235 of the loosely wound laminated core 231, in which the opposite side winding parts of the Coils are added, and some of the liquid adhesive comes out of the grooves by capillary action in wetting Contact between the metal sheets 233 in the loosely wound laminated core due to the rotation of the same in one and the other in the other direction in the at least one and the other preselected setting position of the same in the work station 327 of device 299 (Figs. 16-19 and 26). The loosely wound laminated core 231 is through during its movement at least one more of the workstations, for example the hardening station 365, the device 299 is further heated, and the liquid adhesive 241 in the loosely wound laminated core is thereby hardened to harden the liquid adhesive to form the coil 239 and the sheets 233 of the loosely wound laminated core connects to one another to form the overall one-piece mass (FIG. 26).

Furthermore, the above description shows a further method in an embodiment of the invention for treatment of the loosely wound laminated core 231 with the liquid adhesive 241, which is used to fix the loosely wound laminated core in to connect firmly (Fig. 12 and 16-19). The loosely wound laminated core 231 has the laminations 233, which are attached to one another are arranged adjacent in the loose stack 243, the end faces 245, 247 and the peripheral surface 267 on the Stack and the grooves 235, which are arranged between the opposite end faces, around the winding 239 of the take up loosely wound laminated core (Fig. 13). the

Winding 239 contains several sets of coils 237, where each coil has at least one conductor turn 286, the opposite side turn portions 249, 251 of the coils in the grooves 235 are received and wherein the opposite end winding parts 253, 255 of the coils as a whole to the opposite end faces 245, 247 of the stack of sheets 243 are arranged (Fig. 13 and 15). When running this The loosely wound laminated core 231 is moved in one direction and in a further, opposite direction rotated, and the liquid adhesive 241 is applied to the opposite end winding portions 253, 255 of the spools 237 applied during the rotation of the loosely wound laminated core in one direction and in the other (Fig. 16-18). The liquid adhesive 241 flows from the opposite end winding parts 253, 255 of the coils 237 as a whole longitudinally of the opposite side winding parts 249, 251 of the coils in the grooves 235 of the sheet stack 243, in which the opposite Side turn parts of the coils are added, and some of the liquid adhesive comes out the grooves as a whole by capillary action in wetting contact between the sheets 233 in the sheet stack and at least total to the circumferential surface of the sheet stack when the loosely wound laminated core in the one and in the rotated in the other direction (Fig. 16-19).

Fig. 27 shows another groove liner 379 which has the same structural features overall and for use in the loosely wound laminated core 231 is suitable overall in the same way as the groove lining 277 described above, with the exceptions explained below.

The groove linings 379 have several through openings 381 and are in the grooves 235 of the loosely wound laminated core 231 arranged so that they wrap around the opposite side turn portions 249, 251 of the coils 237 as a whole in the winding 239 received in the slots. When the liquid adhesive 241 on the winding

3U80V9

239 of the loosely wound laminated core 231 is applied so that it is along the opposite winding head parts 253, 255 and the opposite side winding parts 249, 251 of the winding in the grooves 235 of the loosely wound laminated core flows, as has been explained above, facilitate the openings 381 in the groove linings 379, which in FIG the grooves are arranged, the flow of the liquid adhesive from these until it comes into direct contact with the metal sheets 233, which limit the grooves outside the groove linings.

Referring to Figures 28-31, an alternative method of making a loosely wound laminated core is shown or stator 383 described, which contains the same method steps overall and the same components overall used as the method described above for producing the loosely wound laminated core 231, with the im the following explained exceptions. Continue with this alternative method of making the loosely wound Laminated core 383 achieved at least some of the objectives set out above.

In the manufacture of the loosely wound laminated core 383 who the sheets 233 up to a preselected height in one loose stacks 243 stacked on top of one another and correctly aligned so that axial openings or passages 385 are present which receive a plurality of through-bolts 387, and thus the grooves 235 and the bore 273 between the opposing ones End faces 245, 247 of the loose stack of sheets are axially aligned. During this straightening of the loose Sheet metal stack 243, its end face 243 rests on a generally flat ring 389, which has several threaded openings 391 has, into which the screws 387 can be screwed, and a peripheral flange 393 on a base 395 of an alignment mandrel 397 sits. The alignment mandrel 397 extends overall at right angles from the base 395 and has alignment

3443073

webs and grooves 399, the groove entrances 275 and the tooth tips 271 of the sheets 233 in the stack 243 on the mandrel, thereby forming the grooves 235, the bore 273 and the align openings 385 of the loose stack of sheets. The through bolts 387 are through the openings 385, the are provided for them in the loose sheet metal stack 243, passed through and screwed into the threaded holes 391 in the ring 389, and then the through bolts are tightened, around the loose stack of sheets in its aligned position with the ring with the same approximate screwing force to screw, which is exerted on the loosely wound laminated core when it is finally in a motor-compressor unit is attached. In this way, the metal sheets 233 are mutually mutually exclusive around each opening 385 Be surface contact, whereby a plurality of pressure areas 401 are formed, which are a total of axially between the opposite End faces 245, 247 of the stack of sheets 243 extend.

When the sheet metal stack 243 is attached to the ring 389 in this way, the winding 239, the slot linings 277 and the Groove wedges 287 are introduced into the grooves of the stack of sheets in the manner described above, thereby removing the loosely wound Manufacture laminated core 383. The sleeve 295 can then be inserted into the bore 273 of the loosely wound laminated core 383 are introduced, and the assembly consisting of the sleeve and the loosely wound laminated core, which is placed on the ring 389 attached, can be assembled with the mandrel 301 in the loading and unloading station 305 of the device 299, in order to move them further in the manner described above. Of course, during the passage of the assembly from the sleeve 295, the loosely wound laminated core 383 and the ring 389 through the preheating station 319 the sleeve until it comes into contact with the tooth head 271 of the sheets 233 of the loosely wound Laminated core expanded, namely by the heat that is applied to them by the heating devices 321 in the preheating

446079

station is transmitted; however, since the loosely wound laminated core is screwed to the ring 389 through the through-bolts 387 is, whereby the alignment of the bore 273 is maintained in the loosely wound laminated core, it is assumed that the expansion of the sleeve into contact with the bore can have an aligning effect on this or not. Nevertheless, the contact between the sleeve 295 and the tooth tips 271 of the loosely wound laminated core is used 383 to keep the tooth tips free of any liquid adhesive 241 which is released from the grooves 235 by capillary action of the loosely wound laminated core in wetting contact between the sheets 233 of the loosely wound laminated core flows when this liquid adhesive is applied to the winding 239 in the dispensing station 327 of the device 299 described above Way is given. A larger amount of the liquid adhesive 241 is in the wetting between the metal sheets 233 in the loosely wound laminated core 233 outside the pressure areas 401 as being received within the same, when the liquid adhesive on the winding 239 of the loosely wound laminated core in the dispensing station 327 of the device, as best seen in FIG. A more detailed description of the Screw connection of the loosely wound laminated core 383 with the ring 389 on the alignment mandrel 397 and the stopper of the liquid adhesive 241 from the pressure areas 401 of the loosely wound laminated core can be found in the above-mentioned U.S. Patent RE 26,788.

The above statements show that a new method for treating the winding of the laminated core of a dynamoelectric Machine has been described that has the aforementioned objects and advantageous features and other features results.

In addition, the above statements show that a new method for handling a loosely wound laminated core,

a new method for producing a loosely wound laminated core and a new method for operating a Device for gluing a loosely wound laminated core have been described, which has the objectives mentioned above as well as others.

Claims (57)

1 River Road Schenectady, N.Y./U.S.A. Patent claims: 1. Method for treating the winding of the laminated core a dynamo-electric machine with a liquid adhesive, whereby the laminated core has two opposite end faces, a total of axially extending through the laminated core and the opposite end faces of the laminated core having intersecting bore and several grooves, which both the bore and the opposite end faces cut the laminated core and pick up the winding, the winding having multiple sets of coils, each of which has at least one turn of the conductor with opposite side turn portions of the coils in the slots of the laminated core added and opposite end winding parts of the coils in a total of annular groupings are arranged around the hole on the opposite end faces of the laminated core, characterized by the following Steps: Preheating at least the winding assigned to the laminated core is to at least one preselected temperature; Rotating the laminated core in one direction at a speed which is overall between a preselected low value and a preselected high value; Feeding the liquid adhesive onto the opposite end winding parts of the coils in total with a preselected one Inflow amount to allow the liquid adhesive to drip off the opposite end winding parts of the spool to be avoided altogether if the total rotational speed of the laminated core is approximately at the preselected low Value, and a throwing off of the liquid adhesive from the opposite end winding parts of the spool as a whole to be avoided if the rotational speed of the .Blechpackets is overall approximately at the preselected high value; Holding a portion of the supplied adhesive in the opposite end turn portions of the reels during the Feeding step and flowing a further part of the liquid adhesive from the opposite end winding parts of the coils as a whole along the opposite side winding parts of the coil into the grooves of the laminated core, in which the opposite side turn parts of the coils are received, thereby creating the grooves in which the an opposite side turn portion of the coils are received, at least in part with that supplied to them Filling with adhesive, while filling the grooves of the laminated core with the liquid adhesive, in which the others opposite side winding parts of the coils are added, is prevented altogether when the laminated core in the one direction is rotated; Interrupting the supply of the liquid adhesive to the opposite side turn portions of the bobbins at least when a preselected volume of the liquid adhesive during the rotation of the laminated core in one direction this has been supplied; Stopping the rotation of the laminated core in the one direction; Resumption of rotation of the laminated core in one to the a direction opposite another direction at a speed total between the preselected low and high values; Q Π 1 Ω - 3 - 3U5079 Repeating the feeding step while the laminated core is rotated in the further direction; Flowing the liquid adhesive from the opposite end turn portions of the reels along the entire length of the opposite side winding parts of the coils in the grooves of the laminated core, in which the side winding parts of the Coils are added, and at least partial filling the grooves in which the other opposite side turn parts of the coils are received, with this supplied liquid adhesive, whereas at least overall the filling of the grooves of the laminated core with the adhesive, in which the opposite side winding parts of the coils are included, is prevented when the laminated core is rotated in the further direction, thereby filling the grooves of the laminated core with the liquid adhesive essentially balance; Terminating the supply of the liquid adhesive to the opposite end winding parts of the bobbins at least then, if a further preselected volume of the liquid adhesive this during the rotation of the laminated core in the further direction has been supplied, whereby the first-mentioned preselected volume of the liquid adhesive, the fed to the opposite end winding parts of the coils during the rotation of the laminated core in one direction has been supplemented in order to soak the winding with the liquid adhesive at least as a whole; and further heating of at least the winding that is assigned to the laminated core in order to gel and harden the liquid To effect adhesive. 2. A method for treating the winding of the laminated core of a dynamo-electric machine with a liquid adhesive, wherein the laminated core has two opposite end faces and several grooves for receiving the winding, which are extend between the opposite end faces and intersect them, and wherein the winding has a plurality Comprises sets of coils, each coil at least one 3A4G079 " ⁴ " Conductor turns spanning a preselected number of the grooves, with opposite side turn portions of the Coils received in the grooves and opposite end windings of the coils overall on the opposite one The end faces of the laminated core are arranged, characterized by the following steps: Rotating the laminated core in one direction; Dispensing the liquid glue into the opposite one Winding head parts of the coils at least when the laminated core rotated in one direction; Allowing at least a portion of the liquid adhesive to flow, which has been discharged into the opposite end winding parts of the bobbins, from these along the whole of the opposite side winding parts of the coils past the opposite end faces of the laminated core in its Grooves in which the opposite side turn parts of the coils are received and at least partial filling the grooves in which opposing side turn parts of the coils are received, as well as the spaces between the one opposite side winding parts of the coils accommodated therein with the liquid adhesive, on the other hand the flowing of the liquid adhesive along the other opposite side turn portions of the coils into the Grooves in which the other opposite side turn parts are received, at least as a whole, is limited, when the laminated core is rotated in one direction; Reverse the rotation of the laminated core to change its rotation in to effect a further direction opposite to the one direction; Feeding the liquid adhesive into the opposite end winding parts of the coils at least when the laminated core is rotated in the further direction; and directing the liquid adhesive from the opposites End winding parts of the coils as a whole along the opposite side turn parts of the coils past the opposite ones End faces of the laminated core in its grooves, in which the opposite side winding parts of the coil - + 4 ϋ υ / y len are included, and at least partially filling the Grooves in which the other opposite side turn parts of the coils are received, as well as the spaces between the other opposite side turn parts of the coils housed therein with the liquid Adhesive, whereas the flow of the liquid adhesive along one of the opposite side turn parts of the Coils in the grooves of the laminated core, in which the opposite side winding parts of the coils are received are limited, at least as a whole, when the stand is rotated in the further direction. 3. The method according to claim 2, characterized by the intermediate step the interruption of the dispensing of the liquid adhesive on the opposite end winding parts of the Winding before the reverse step. 4. The method according to claim 3, characterized in that the feeding step includes resuming the dispensing of the liquid Includes adhesive on the opposite end turn portions of the bobbins subsequent to the reversing step. 5. The method of claim 2 wherein the flowing and filling step includes a Part of the liquid adhesive dispensed onto the opposite end winding parts of the bobbins, at least in the spaces between them to hold the opposite end winding parts of the bobbins. 6. The method according to claim 5, characterized in that the directing and filling step includes another Part of the liquid adhesive that has been applied to the opposite end winding parts of the coils, at least in the cavities of the opposite end winding parts of the coils and thereby the part of the to supplement liquid adhesive, which at least in the cavities of the opposite end winding parts of the coils 3USÜ79 rend of the holding step is held in order to soak the winding with the liquid adhesive as a whole. 7. Method for treating the winding of the laminated core a dynamo-electric machine with a liquid adhesive, the laminated core having two opposite end faces and a plurality of grooves for receiving the winding extending between the opposite end faces and intersecting them, the winding comprising multiple sets of coils and each coil at least has a conductor turn, with opposite side turn parts of the coils received in the grooves of the laminated core and opposite end winding parts of the coils are arranged as a whole on the opposite end faces of the stator are characterized by the following steps: rotating the laminated core in one direction; Dispensing the liquid adhesive onto the opposite end-turns of the reels and allowing a larger one to flow Amount of liquid adhesive from the opposite end turn parts of the bobbins from a total of along one opposite side winding parts of the coils in the grooves of the laminated core, in which the opposite Cross-turn portions are included as a whole along the other opposite side-turn portions of the coils into the grooves of the laminated core, in which the other opposite side winding parts of the coils are received, by rotating the laminated core in one direction; Reverse the rotation of the laminated core to change its rotation in to effect a further direction opposite to the one direction; and Continue dispensing and flowing the liquid adhesive onto the opposite end turn portions of the bobbins a larger amount of the liquid adhesive from the opposite end turn portions of the bobbins overall longitudinally the other opposite side turn parts of the coils 3445079 _ * 7 - into the grooves of the laminated core, in which the other opposite ones Side turn parts are added, as a whole along the one opposite side turn parts of the Coils in the grooves of the laminated core, in which the opposite side winding parts of the coils are received are, by rotating the laminated core in the further direction, thereby filling the grooves of the laminated core with to balance the liquid adhesive overall. 8. The method according to claim 7, characterized by the preliminary step preheating at least the winding that is assigned to the laminated core. 9. The method according to claim 7, characterized by the additional Step of heating at least the winding that is assigned to the laminated core in order to gel and harden to effect the liquid adhesive. 10. The method according to claim 7, characterized in that the step of dispensing and flowing includes the Grooves of the laminated core, in which the opposite side winding parts of the coils are received, during the Rotation of the laminated core in one direction to fill the whole with the liquid adhesive. 11. The method of claim 7 wherein the continuing and flowing step includes the grooves of the laminated core, in which the other opposite side turn parts of the coils are received, while the rotation of the stand in the further direction to fill the whole with the liquid adhesive. 12. The method according to claim 7, characterized in that the step of dispensing and allowing to flow includes in the opposite winding head parts of the bobbins (»inen part to hold the adhesive dispensed on them during the rotation of the laminated core in one direction. 13. The method according to claim 12, characterized in that the step of continuing and flowing includes placing one in the opposite end turn portions of the bobbins Pick up part of the liquid adhesive in order to soak the winding as a whole. 14. Method for treating the winding of the laminated core a dynamo-electric machine with a liquid adhesive, the laminated core having two opposite end faces and has several grooves in the stator for receiving the winding intersecting the opposite end faces, wherein the winding has a plurality of coils which are distributed on different winding strands in the stator, wherein each coil has at least one conductor turn, with opposite side turn parts of the coils in the slots of the Laminated core added and opposite end winding parts of the coils in a total of annular groupings are arranged on the opposite end faces of the laminated core, and several Strangisolereinrichtungen for insulation between the coils in the different winding phases of the same in the laminated core, with several opposite ones End pieces, which are arranged between the opposite end winding parts of the coils in the different winding phases, and with several elongated Pieces that fit into the grooves of the laminated core between the opposite side turn parts of the coils in the various Winding phases are arranged, characterized by the following steps: Rotating the laminated core in one direction; Dispensing the liquid glue onto the opposite one End winding parts of the coils at least when the laminated core is rotated in one direction; Flowing a greater amount of the liquid adhesive from the opposite end turn portions of the bobbins a total of along an opposite side turn parts of the coils in the grooves of the laminated core, in which the one opposite side turn parts of the coils added Q / / C η 7 Q - 9 - are as a whole along the other opposite side turn parts of the coils is allowed to flow into the grooves of the laminated core / in which the other opposite ones Side turn parts of the coils are added when the laminated core is rotated in one direction, and encapsulated total of the elongated pieces of the insulating devices and the one opposite side turn portions of the Coils in the grooves of the laminated core, in which the elongated pieces of the insulating devices and the opposite one Side turn parts of the coils are received with the liquid adhesive flowed therein; Reversing the rotation of the laminated core in order to rotate it in a further direction opposite to the one direction to effect; Feeding the liquid adhesive onto the opposite end winding parts of the coils when the laminated core is in the other Direction is rotated; Directing a greater amount of the liquid adhesive from the opposite end turn portions of the coils as a whole along the other opposite side turn parts of the coils into the grooves of the laminated core in which the others opposite side turn parts of the coils are received than along the whole of the opposite one Side winding parts of the coils in the grooves of the laminated core, in which the opposite side winding parts of the Coils are picked up, allowed to flow due to the rotation of the laminated core in the other direction, and encapsulated total of the elongated pieces of the isolators and the other opposing side turn portions of the coils in the grooves of the laminated core, in which the elongated pieces of insulating material and the other opposite side turn portions of the coils are received with the liquid adhesive flowed therein; and Continue feeding the liquid adhesive onto the opposite end turn portions of the bobbins until the opposite ones Winding head parts of the coils at least as a whole /, ',' j 7 J are impregnated with the liquid adhesive, and encapsulate the opposite end winding parts of the coils and the End pieces of the insulating devices, which are arranged therebetween, all with the liquid adhesive. 15. The method according to claim 14, characterized in that the liquid adhesive on several sets of preselected Place on the opposite end turn portions of the bobbins during the dispensing step and during the feeding step is applied. 16. The method according to claim 15, characterized in that a set of the preselected locations are within the interior Circumference of the opposite end winding parts of the coils with Distance from the opposite end faces of the laminated core and another set of the preselected locations the outer periphery of the opposite end turn portions of the coils. 17. The method according to claim 15, characterized in that at least one of the one and the further sets is preselected Places where the liquid adhesive is applied to the opposite end winding parts of the bobbins, is changed during the feeding step. 18. Method for treating the winding of the laminated core a dynamo-electric machine with a liquid adhesive, the laminated core having two opposite end faces and a plurality of grooves intersecting the opposite end faces for receiving the winding, the Winding comprises several sets of coils, each of which has at least one conductor turn, being opposite Side winding parts of the coils received in the grooves of the laminated core and opposite end winding parts of the coils are arranged in total on the opposite end faces of the stand, characterized by the following steps: 3445379 Rotating the laminated core in one direction; Dispensing the liquid glue onto the opposite one End turns of the coils during rotation of the core in one direction; Flowing the liquid glue on the opposite one Winding head parts of the coils is delivered from these from along the opposite side turn parts of the coils in the grooves of the laminated core, in which the opposite Side turn parts of the coils are added; at least partially filling the grooves of the laminated core, in which one of the opposite side turn parts are received, with the liquid adhesive flowing into it and directing a minor amount of the liquid adhesive into the grooves in which the other of the opposite side turn portions of the coils are accommodated, their filling with liquid adhesive by the rotation of the laminated core is limited in one direction; Reverse the rotation of the laminated core to change its rotation in to effect a further direction opposite to the one direction; Application of the liquid adhesive to the opposite end winding parts of the coils while the laminated core is rotating in the other direction; Conducting the liquid adhesive applied to the opposite end winding parts of the coils from these along the opposite side turn parts of the coils into the grooves of the laminated core, in which the opposite ones Side turn parts of the coils are added during the rotation of the laminated core in the other direction; at least partially filling the grooves of the laminated core, in which the other opposite side turn parts of the Coils are picked up with the liquid glue introduced into them and flowing a smaller amount of the liquid adhesive into the grooves in which the opposite side turn parts of the coils are received so that the grooves of the laminated core are filled with fluent 3US079 sigem adhesive by rotating the laminated core in the other direction is balanced overall; and continuing to apply the liquid adhesive the opposite end turns of the coils until they are at least completely soaked with the liquid adhesive. 19. Method for treating the winding of the laminated core a dynamo-electric machine with a liquid adhesive in a work station, the laminated core being two opposite end faces, a total of axially extending through the laminated core and the opposite Has end faces intersecting bore and several grooves that extend axially through the overall to accommodate the winding Extend the laminated core and cut both the bore and the opposite end faces, with the winding comprising a plurality of sets of coils and wherein each coil has at least one conductor turn with opposite side turn portions of the coils received in the grooves of the laminated core and opposite end winding parts of the coils as a whole in annular groupings having overall radially inner and outer circumferential surfaces around the bore are arranged on the opposite end faces of the laminated core and wherein the work station has two sets of dispensing devices for the liquid adhesive and means for keeping the stand in a preselected position carries in the workstation and is optionally operable so that the stand in one direction and in one to is rotated in the opposite direction in one direction, characterized by the following steps: Placing one of the dispensers of the dispenser sets in the workstation in preselected positions adjacent to the inner peripheral surfaces on the opposite Winding head parts of the coils and spaced apart from the opposite end faces of the laminated core and arranging the other delivery devices of the delivery 3445079 equipment sets in the work station in preselected positions adjacent to the outer peripheral surfaces the opposite end winding portions of the coils as a whole adjacent to the free ends thereof; Actuate the rotating device to selectively rotate the laminated core in one direction in the work station cause; Dripping the liquid adhesive from one and the other dispensers of the dispenser sets into the preselected positions of the same on the opposite end winding parts of the coils on their inner and outer peripheral surfaces; Allowing a greater amount of the liquid dripped onto the opposite end turn portions of the bobbins to flow Glue as a whole along one of the opposite side turn parts of the coils in the grooves of the laminated core, in which the one opposite side turn parts of the Coils are received as a whole along the other opposite side turn portions of the coils in the grooves of the laminated core, in which the other opposite side turn parts of the coils are received, by the rotation of the laminated core in one direction in the work station; optionally reversing the operation of the rotating device to the rotation of the laminated core in the further direction in the Effect workstation; Repeating the trickling step when the laminated core is rotated in the further direction in the work station; and Conduct a larger amount of the during the repetition step liquid adhesive dripped onto the opposite end winding parts of the bobbins from these overall along the other opposite side winding parts of the coils in the grooves of the laminated core in which the other opposite side turn parts of the coils are added than as a whole along the one opposite one Side winding parts of the coils into the grooves of the sheet metal 3AA6079 packages in which the one opposite side turn parts of the coils are received by rotating the laminated core in the further direction in the work station. 20. The method according to claim 19, characterized by the Preliminary step of preheating at least the winding assigned to the laminated core to at least one preselected one Temperature. 21. The method according to claim 19, characterized by the additional step of heating at least the laminated core associated winding to effect the gelling and hardening of the liquid adhesive. 22. The method according to claim 19, characterized in that the step of plowing includes the grooves of the Laminated core, in which the opposite side turn parts of the coils are received, total with the To fill liquid adhesive and thereby the opposite side winding parts with the liquid adhesive encapsulate in total when the laminated core is rotated in one direction. 2.3. Method according to claim 19, characterized in that the step of guiding includes the grooves of the laminated core, in which the other opposite side turn parts of the coils are housed with the liquid adhesive to completely fill and thereby the other opposite side winding parts of the coils with the liquid Encapsulate the adhesive as a whole when the laminated core is rotated in the further direction. 24. The method according to claim 19, characterized by the additional Step of dripping the liquid adhesive from the one and further dispensers of the dispenser sets on the opposite end winding parts 3448079 of the coils until the winding is completely soaked with the liquid adhesive. 25. The method of claim 19, characterized in that the repeating step includes the preselected positions to change from at least one of the one and further delivery devices. 26. Method for handling a loosely wound laminated core with a curable liquid adhesive, by means of which the loosely wound laminated core becomes an overall uniform Mass can be glued, the loosely wound laminated core having a plurality of metal sheets which are in contact with one another are arranged in a total loose stack, two opposite one another End faces on the stack of sheets, a hole that extends through the stack of sheets and the opposite one End faces cuts ^ and several grooves that both Cut the hole and the opposite end faces of the stack of sheets to wrap the loosely wound Take up laminated core, the winding having several sets of coils, each of which has at least one conductor turn having opposite side turn portions of the coils received in the grooves and opposite ones Winding head parts of the coils in a total of annular groupings around the bore on the opposite end faces are arranged, characterized by the following steps: Preheating the loosely wound laminated core to at least one preselected temperature; Rotating the loosely wound laminated core in one direction at a speed that is between a total of a preselected low value and a selected high value; Feeding the liquid adhesive to the opposite direction. «N Winding head parts of the coils overall with a preselected inflow amount to prevent the liquid adhesive from dripping off 3U6079 the opposite end winding parts of the bobbins at least to minimize when the rotational speed of the loosely wound Laminated core is a total of the preselected low value, and around the spinning off of the liquid adhesive from the opposite end winding parts of the bobbins at least minimize when the rotational speed of the loose sheet metal stacks are in total at the preselected high value; Holding a portion of that fed during the feeding step liquid glue in the opposite winding head portions of the bobbins and flowing another Part of the liquid adhesive from the opposite end turn portions of the bobbins along the whole of the opposite one Side winding parts of the coils in the grooves of the stack of sheets, in which the opposite side winding parts of the coils are added, thereby at least partially filling the grooves in which some of the opposite Side winding parts of the coils are added, with the adhesive supplied to them, whereas the filling of the grooves of the stack of sheets, in which the other opposite side turn parts of the coils are received, with the liquid adhesive, when the loosely wound laminated core is rotated in one direction, is prevented altogether; Directing a portion of the liquid adhesive that has flowed into the grooves out of them as a whole by capillary action in wetting contact with the mutually touching sheets of the sheet stack; Interrupting the supply of the liquid adhesive to the opposite end winding parts of the bobbins at least if a preselected volume of the liquid adhesive increases this during the rotation of the loosely wound laminated core has been fed in one direction; Termination of the rotation of the loosely wound laminated core in one direction; Resumption of rotation of the loosely wound laminated core in a further opposite direction to the one Direction at a speed overall between the selected low and the selected high value; Repeating the feeding step while the laminated core is rotated in the further direction; Flowing the liquid adhesive from the opposite end turn portions of the reels along the entire length of the opposite side winding parts of the coils in the grooves of the stack of sheets in which the side winding parts of the Coils are accommodated, and fill at least part of the grooves in which the other opposite side turn parts The coils are accommodated with the liquid glue introduced into them while the grooves are being filled of the stack of sheets with the liquid adhesive, in which the some opposite side winding parts of the coils are recorded, is prevented altogether if the loosely wound laminated core is rotated in the further direction, in order to compensate for the filling of the grooves of the stack of sheets with liquid adhesive as a whole; Repetition of the step of directing; Finishing supplying the liquid adhesive to the opposite end winding parts of the coils at least when another preselected volume of liquid adhesive wrapped it during rotation of the loosely Laminated core has been fed in the further direction, the further preselected volume of the liquid adhesive the first-mentioned preselected volume of liquid adhesive that is applied to the opposite end winding portions of the Coils is applied during the rotation of the loosely wound laminated core in one direction, so that the Winding is soaked at least as a whole with the liquid adhesive; and further heating of at least the loosely wound laminated core so that the liquid adhesive in the winding and in the Sheet metal stack is included, is hard and thereby glued the loosely wound laminated core to form the overall one-piece mass will. 3446073 " ¹⁸ " 27. Method for treating a loosely wound laminated core for a dynamo-electric machine with a hardenable one liquid adhesive by means of which the loosely wound laminated core can be glued, the loosely wound laminated core has a plurality of metal sheets, which are arranged touching one another in an overall loose stack, two opposite end faces on the stack of sheets, several grooves in the stack of sheets that the opposite end faces cut and pick up the winding of the loosely wound laminated core, the winding several sets of Has coils, each of which has at least one conductor turn, with opposite side turn portions of the coils in the Grooves added and opposite end winding parts of the coils arranged overall on the opposite end faces are characterized by the following steps: rotating the loosely wound laminated core in one direction; Dispensing of the liquid adhesive onto the opposite end winding parts of the coils at least when the loosely wound The laminated core is rotated in one direction, and a larger amount of the liquid adhesive is allowed to flow from the opposite end turn portions of the bobbins along some of the opposite side turn portions as a whole of the coils in the grooves of the stack of sheets, in which the some opposite side winding parts of the Coils are received, as from the opposite side turn parts of the coils from a total of along the other opposite side winding parts of the coils is allowed to flow into the grooves of the stack of sheets in which the further opposite side winding parts are added, due to the rotation of the loosely wound laminated core in one direction; Directing part of the liquid adhesive that is in the grooves of the stack of sheets during the rotation of the loosely wound Laminated core has flowed in one direction, from the grooves overall by capillary action in wetting contact between the touching sheets of the sheet stack; Reverse the rotation of the loosely wrapped laminated core to it 3443079 rotate in a further direction opposite to the one direction; Continuing the dispensing of the liquid adhesive onto the opposite end winding parts of the bobbins at least then when the loosely wound laminated core is rotated in the further direction, and flowing a larger amount of the liquid adhesive from the opposite end winding parts of the bobbins from a total of along the other opposite one Side winding parts of the coils in the grooves of the stack of sheets, in which the other opposite side winding parts of the coils are received than from the opposite end winding parts of the coils as a whole is allowed to flow along the some opposite side turn parts of the coils into the grooves of the stack of sheets, in which the some opposite side turn parts of the bobbins are accommodated when the loosely wound part is rotated Laminated core in the further direction, thereby filling the grooves of the stack with the liquid adhesive balance overall; and Allowing part of the liquid adhesive to flow into the grooves of the stack of sheets during the rotation of the loosely wound Laminated core has flowed in the further direction, from the grooves overall by capillary action in wetting Contact between the adjacent sheets in the sheet stack. 28. The method according to claim 27, characterized by the preliminary step of producing a plurality of pressure areas, which extend axially overall between the opposite end faces of the stack of sheets, whereby a larger amount of the liquid adhesive in the wetting contact between the sheets outside the pressure areas than arrives within the same. 29. The method according to claim 27, characterized by the additional Step of finishing dispensing the liquid Adhesive at least as a whole when the opposite end winding parts of the coils with the liquid adhesive are soaked. 30. The method according to claim 27, characterized in that the loosely wound laminated core further has a bore in the Has sheet metal stack, which is in communication with the grooves and its opposite end faces, devices at least in part within the grooves for isolation between the opposite side turn portions of the coils and the stack of sheets and a plurality of devices which are at least partially superimposed on the insulating devices and the stack of sheets are to prevent the opposite side turn portions of the coils from shifting out of the grooves in the bore to hold, and that the step of directing and the step of flowing each include that the liquid Adhesive between the overlay of the insulating devices and the retaining devices seep out in the grooves, the seeping out liquid adhesive its wetting contact between the sheets of the sheet stack causes. 31. Method for treating a loosely wound laminated core for a dynamo-electric machine with a hardenable one liquid adhesive by means of which the loosely wound laminated core can be glued, the loosely wound laminated core has several metal sheets, which are arranged touching one another in an overall loose stack, two opposite one another End faces on the loose sheet stack, a circumferential surface on the loose sheet stack between its opposite End faces, several grooves that extend between the opposite end faces through the loose sheet metal stack extend and take up the winding of the loosely wound laminated core, the winding having several coils, of which each having at least one turn of the conductor with opposite side turn portions of the coils received in the slots 3443079 and opposite end winding parts of the coils are arranged as a whole on the opposite end faces, characterized by the following steps: Turning the loosely wound laminated core in one direction and in a further direction opposite thereto and dispensing the liquid adhesive onto the opposite one Winding head parts of the coils during at least part of the rotation of the loosely wound laminated core in one and in the further direction; and Flowing the liquid adhesive from the opposite end turn portions of the reels along the entire length of the opposite side winding parts of the coils into the grooves of the stack of sheets in which the opposite side winding parts of the coils are received, and directing some of the liquid adhesive out of the grooves as a whole by capillary action in wetting contact between the touching sheets in the loose sheet metal stack and at least as a whole to the circumferential surface of the loose Stack of sheets by rotating the loosely wound sheet stack in one direction and the other. 32. The method according to claim 31, characterized by the preliminary step of producing a plurality of printing areas, which extends axially through the loose sheet metal stack between its opposite end faces and at least extend entirely adjacent to its circumferential surface. 33. The method of claim 32, characterized in that the flowing and directing step includes more of the liquid adhesive between the sheets of the loose sheet stack outside the pressure areas of the loose sheet stack to collect than within the pressure areas. 34. The method according to claim 31, characterized by the preliminary step the heating of the loosely wound laminated core to at least one preselected temperature. 35. The method according to claim 31 / characterized by the additional Step of heating the loosely wound laminated core, to cure the liquid adhesive contained in the loosely wound laminated core, thereby creating the to glue loose sheet metal stacks and the winding together. 36. The method according to claim 35, characterized by the additional Step of cooling the loosely wrapped stack of sheets. 37. The method according to claim 31, characterized in that the loosely wound laminated core further comprises a plurality of devices which are at least partially arranged in the grooves are to the opposite side turn parts of the coils, which are received in the grooves, from the loose stack of sheets to insulate, and several devices that are at least partially connected to the electrical insulation devices and are in contact with the loose stack of sheets to shift the opposite side turn portions of the coils from the grooves, and that the step of flowing and directing includes some of the liquid Adhesive between the insulating devices and the retaining devices out and into the grooves outside the electrical isolation device seeps to thereby to bring about the wetting contact of the liquid adhesive between the sheets of the sheet stack. 38. The method according to claim 31, characterized in that the loosely wound laminated core on several devices. which are arranged in the grooves so that they are at least partially around the opposite side turn parts of the coils received in the grooves extend around the opposite side turn portions of the coils to electrically isolate from the loose sheet metal stack, the electrical insulating devices having multiple passages and that the step of flowing and conducting includes the liquid adhesive from the electrical Isolation means through at least some of their passages to flow into the grooves outside of the electrical insulating devices, to be total by capillary action to effect wetting with the liquid adhesive between the sheets of the loose sheet stack. 39. A method for producing a loosely wound laminated core for a dynamo-electric machine, the loose wound laminated core has several slot linings, several slot wedges, several coils, each of which at least a conductor turn has opposite side turn parts and opposite end winding parts, one curable liquid adhesive, by means of which the loosely wound laminated core can be glued, and several metal sheets that in each case a circumferential edge, a bore opening and several spool receiving grooves which intersect the central opening, have, characterized by the following steps: arranging the metal sheets in mutual contact in a total loose stacking and aligning at least the grooves in the loose stack of sheets; Arranging the groove linings in the grooves of the loose sheet metal stack and thereby maintaining the mutual alignment of the grooves; Introducing the opposite side turn parts of the Coils in the slot linings in the slots of the loose sheet metal stack and arranging the opposite end turns of the coils overall on the opposite end plates of the loose sheet stacks; Placing the slot wedges at least partially in the slots to allow the opposite side turn parts to move out to prevent the windings from the grooves in the bore opening of the sheets in the loose sheet stack, and arranging them opposite parts of the groove wedges such that they are opposite parts of the groove linings within the grooves of the loose stack of laminations are superimposed to thereby form the loosely wound stack of laminations; Fastening a heat-expandable sleeve in the bore openings of the sheets in the loose sheet stack; Preheating of the loosely wound laminated core on the sleeve; Expand the sleeve until it is in alignment with the bore openings of the sheets in the stack and thereby aligning the bore openings of the loose sheets in the loose sheet stack by the heat added during the preheating step; rotating the loosely wound laminated core and the sleeve together in one direction; Dispensing the liquid adhesive onto the opposite end-turns of the reels and allowing a larger one to flow Amount of liquid adhesive from the opposite end turn portions of the spools along a total of some of the opposite side winding parts of the coils in the grooves of the loose sheet metal stack, in which the some opposite Side turn parts are added than from the opposite end winding parts of the coils as a whole along the other opposite side turn parts of the Coils in the grooves of the loose sheet metal stack, in which the other opposite side winding parts of the coils are received are to flow through the joint rotation of the loosely wound laminated core and the sleeve in one direction is left; Letting the liquid adhesive seep past the groove linings and the groove wedges superimposed on each other in and out of the grooves as a whole by capillary action in wetting contact between the sheets of the loose sheet stack; Holding part of the liquid glue in the opposite one Winding head parts of the coils on which he during the common rotation of the loosely wound laminated core and the sleeve has been applied in one direction; Termination of the common rotation of the loosely wound laminated core and the sleeve in one direction and interruption dispensing the liquid adhesive onto the opposite end turn portions of the reels; Resumption of the common rotation of the loosely wound laminated core and the sleeve in one direction to the one opposite further direction; Resuming the dispensing of the liquid adhesive onto the opposite end winding portions of the bobbins and allowing it to flow a greater amount of the liquid adhesive from the opposite end turn portions of the bobbins as a whole along the other opposite side turn parts of the sinks into the grooves of the loose sheet metal stack in which the other opposite side turn parts of the coils are received than the opposite end winding parts of the coils from a total of along the opposite side turn parts of the coils into the grooves of the loose Sheet metal stack, in which the opposite side turn parts of the coils are received, allowed to flow is, with the common rotation of the loosely wound laminated core and the sleeve in the further direction to thereby to balance the filling of the grooves with the liquid adhesive as a whole; Directing the liquid adhesive past the slot linings and the slot wedges superimposed on them within the Grooves and out of these as a whole through capillary action in wetting contact between the sheets of the loose sheet stack, in order to ensure that the liquid adhesive between the sheets in the loose sheet stack is in wetting contact is, during the common rotation of the loosely wound laminated core and the sleeve in one direction; Supplementing the liquid adhesive contained in the opposite end winding parts of the coils while the common rotation of the loosely wound laminated core and the sleeve in one direction with the liquid adhesive, on the opposite winding head parts of the coils during the joint rotation of the loosely wound laminated core and the tube is dispensed in the other direction, thereby impregnating the opposite end winding parts of the Wash; Heating the loosely wound laminated core and thereby hardening the liquid adhesive that is in the loose stack of laminations and is contained in the coils to thereby glue the loosely wound laminated core to form a one-piece mass; Interrupting the dispensing of the liquid adhesive onto the opposite end turns of the bobbins and terminating the common rotation of the loosely wound laminated core and the sleeve in the further direction; and Cooling of the loosely wound laminated core and the sleeve and removal of the sleeve from the loosely wound laminated core. 40. A method for producing a loosely wound laminated core for a dynamo-electric machine, the loosely wound Laminated core has several sheets, each of which has several grooves for receiving the winding of the loosely wound Have laminated stacks, wherein the laminations and the winding can be glued to one another by a curable liquid adhesive are characterized by the following steps: Arranging the sheets in mutual contact loosely in a stack and overall axial alignment of the grooves in the stack of sheets; Introducing parts of the winding into the slots and arranging other parts of the winding in a generally annular shape Groupings at opposite ends of the stack of sheets; Rotating the stack of sheets and the winding in one direction; Dispensing the liquid adhesive onto the other parts of the Wrapping and flowing more liquid adhesive altogether along some of the former parts of the wrap in FIG the grooves of the stack of sheets, in which the first few mentioned parts of the winding are received, as overall lengthways some other of the former parts of the winding in some other of the slots of the stack of sheets, in which some other former parts of the winding are added and allowed to flow when the stack of sheets rotates the winding; 4 ^ - ο u / a Conducting the liquid adhesive from the grooves of the stack of sheets into wetting contact between the sheets of the stack of sheets overall by capillary action; Reverse the rotation of the stack of sheets and the winding to to rotate it in a further direction opposite to the one direction; Port setting the dispensing of the liquid glue to the other parts of the winding and allowing more liquid to flow Glue as a whole along some of the other first-mentioned parts of the winding into some of the other grooves of the Sheet metal stack, in which the some other first-mentioned parts of the winding are received, than a total of along the some of the former parts of the winding are allowed to flow into some of the slots in the stack of sheets in which the some of the former parts of the winding are included in the rotation of the stack of sheets and the winding in the other Direction, so as to compensate for the filling of the grooves of the stack of sheets with the liquid adhesive as a whole; Repeating the step of conducting when the sheet stack and the winding are rotated in the further direction; and Hardening of the liquid adhesive contained in the loosely wound laminated core in order to make it hard and thereby to glue the sheets of the sheet stack and the winding to form a one-piece mass. 41. The method according to claim 40, wherein the loosely wound laminated core further comprises a plurality of groove linings, characterized by the intermediate step of arranging the groove linings at least partially within the grooves of the metal sheets of the stack and thereby maintaining the mutual alignment of the grooves in the stack of sheets, the former Parts of the winding are received in the slot linings, thereby forming the first-mentioned parts of the winding to electrically isolate from the sheet metal stack. ί ηητη -28- 42. The method of claim 40, wherein the loosely wound Laminated core further has a plurality of slot wedges, characterized by the further intermediate step of arranging the slot wedges within the grooves of the stack of sheets, so as to hold the former parts of the winding in the grooves, and Arranging the slot wedges and the slot linings partially overlapping one another. 43. The method according to claim 42, characterized in that the step of directing and the step of repeating include that the liquid adhesive past the groove wedges and the superimposed groove linings in the wetting contact seeps between the sheets of the sheet stack. 44. The method according to claim 40, characterized by the intermediate step of producing several printing areas, extending overall axially through the stack of sheets, and the accumulation of more liquid adhesive in it wetting contact between the sheets in the sheet stack outside the pressure areas than within the same. 45. The method according to claim 40, characterized in that the step of hardening and gluing includes the stack of sheets and to heat the winding and then to cool the stack of sheets and the winding. 46. The method according to claim 40, characterized by the intermediate step of preheating the stack of sheets and the Winding. 47. Method for producing a loosely wound laminated core, wherein the loosely wound laminated core comprises several sheets has, each having a plurality of grooves for receiving coils of the winding of the loosely wound laminated core, wherein the sheets and the winding can be glued to one another by a curable liquid adhesive, characterized by following steps: Arranging the sheets as a whole loosely in a stack and aligning at least the grooves as a whole axially in the loose Sheet metal stack; Insertion of opposite parts of the coils into the grooves of the loose stack of sheets and arrangement of other opposite ones Divide the coils as a whole adjacent to the opposite ends of the stack of sheets to thereby to form at least part of the loosely wound laminated core; Rotating the loosely wound laminated core alternately in one Direction and in a further direction opposite thereto; Dispensing the liquid glue onto the other opposite sides Parts of the bobbins, with more liquid glue of these from altogether along some of the former opposite Parts of the winding coils in some of the grooves of the loose sheet metal stack in which the first few mentioned opposite parts of the coils are received than along the other of the former opposite parts the coils is allowed to flow into the other grooves in the loosely wound laminated core, in which the other opposite ones Parts of the coils are included when the loosely wound laminated core rotates in one direction, and there being more liquid adhesive in total along the other first-mentioned opposite portions of the coils in the other grooves in the loose stack of sheets than along the some of the former opposite parts of the coils in the some grooves in the loose stack of sheets is allowed to flow during the rotation of the loosely wound laminated core in the further direction, and guiding part of the liquid adhesive from the grooves of the loose sheet metal stack into wetting Contact between the sheets in the loose stack of sheets as a whole due to capillary action during the rotation of the loose wound laminated core in one direction and in the other direction; and Curing the liquid adhesive contained in the reels and in the loose stack of sheets to form the liquid adhesive to make hard and thereby the winding and the loose 3 Λ 4 6 O 7 9 To glue sheet metal stack of the loosely wound laminated core to form a total of one-piece mass. 48. A method for producing a loosely wound laminated core for a dynamo-electric machine, the loose wound laminated core has several sheets, each of which has several grooves for receiving several groove linings, of several slot wedges and the winding of the loosely wound laminated core, the sheets and the winding are glued together by a curable liquid adhesive, and wherein the winding has several coils, of each of which has at least one conductor turn with opposite side turn parts and opposite end winding parts has, characterized by the following steps: arranging the metal sheets in mutual contact as a whole a loose pile; Aligning at least the grooves in the loose stack of sheets; Placing the groove liners in the grooves; Introducing the opposite side turn parts of the Coils in the slot liners in the slots and arranging the opposite end winding parts of the coils in opposite, generally annular groupings at the opposite ends of the stack to thereby at least achieve the Part to form the loosely wound laminated core; Rotating the loosely wound laminated core in one direction; Dispensing the liquid adhesive onto the opposite end turn portions of the bobbins; Allowing a larger amount of the liquid adhesive to flow onto the opposite end turns of the bobbins is discharged, of these from a total of along an opposite side turn parts of the coils into the slot linings within the grooves in which the opposite side turn parts of the coils are received, than overall along the other opposite side turn portions of the coils into the slot liners in the slots is allowed to flow, in which the other opposite side turn parts of the coils are received, in the 3448079 Rotation of the loosely wound laminated core in one direction, and guiding the liquid adhesive from inside the groove linings to the outside thereof into the grooves, so as to wet the contacting surfaces of the sheets in the loose sheet metal stack with the liquid adhesive at least in part by capillary action ; Reversing the rotation of the loosely wound laminated core in order to rotate it in a further direction opposite to the one direction;
Repeating the dispensing step; Directing a larger amount of the liquid adhesive specified onto the opposite end turn portions of the coils is, of these from a total of along the other opposite side turn parts of the coils in the slot linings in the grooves in which the other opposite side turn parts of the coils are received than is allowed to flow along one of the opposite side turn portions of the coils into the slot liners in the slots in which the opposite side winding parts of the bobbins are received during the rotation of the loosely wound Laminated core in the further direction, thereby filling the grooves with the liquid adhesive as a whole and flowing the liquid adhesive from within the groove liners to the outside thereof into the grooves, the more so the wetting of the contacting surfaces of the sheets in the loose sheet stack with the effecting liquid adhesive overall by capillary action; and Hardening of the loosely wound laminated core in order to harden the adhesive contained therein and thereby the winding, the Groove linings and the loose sheet metal stack into one total one-piece mass to be glued together. 49. The method according to claim 48, characterized in that the dispensing step includes a portion of the liquid adhesive in the opposite end winding parts of the coils take up during the rotation of the loosely wound laminated core in one direction. 50. The method of claim 49, characterized in that the repeating step includes the liquid adhesive, in the opposite end winding parts of the coils during the rotation of the loosely wound laminated core in the one direction is held in place, to be supplemented with liquid glue, which is applied to the opposite end winding of the Coils is delivered during the rotation of the loosely wound laminated core in the further direction, so that the winding is completely soaked with the liquid adhesive. 51. The method according to claim 48, characterized by the intermediate step of producing a plurality of printing areas overall axially in the loose stack of sheets and the accumulation of more liquid adhesive in its wetting contact between the contacting surfaces of the sheets in the loose sheet stack outside the pressure areas than inside the same. 52. The method according to claim 48, characterized by the intermediate step of heating the loosely wound laminated core to at least one preselected temperature at least before the dispensing step. 53. The method according to claim 52, wherein the loosely wound laminated core further has a bore which penetrates through the laminations is limited in the loose sheet metal stack, characterized by the further intermediate step of arranging a through Heat expandable sleeve at least partially within the bore and expanding the sleeve until it comes into contact with it the hole to align them in the loose stack of sheets by the heat generated during the heating step the sleeve is transferred. 54. The method according to claim 48, characterized in that the step of hardening and gluing includes the loosely wound laminated core at least to a preselected temperature to heat and then to cool the loosely wound laminated core. 55. Method of operating a device for gluing a loosely wound laminated core with a curable liquid Adhesive to an overall uniform mass, the loosely wound laminated core for use in a Dynamoelectric machine is provided, wherein the device has several work stations and at least one having rotatable mandrel, means for progressively moving the rotatable mandrel between a plurality of preselected Setting positions by the work stations, several devices for rotating the rotatable mandrel, several Sets of dispensers for the curable liquid adhesive positioned between rest and advanced positions are movable, and several sets of heating devices, wherein the loosely wound laminated core has several sheets, which are arranged in contact with one another to form an overall loose stack, two opposite end faces on the loose Sheet metal stack, a circumferential surface on the loose sheet metal stack between its opposite end faces, a hole, which extends through the loose sheet metal stack between its opposite end faces, several grooves that extend overall aligned with one another extend through the loose sheet metal stack and both the bore and the opposite one Cut the end faces and take up the winding of the loosely wound laminated core, with the winding several Has coils each of which has at least one conductor turn with opposite side turn portions of the coils arranged in the grooves and opposite end windings of the coils in generally annular groupings around the Bore are arranged on the opposite end faces, several groove linings in the grooves for upright 3 A 4 G O 7 9 maintain the overall aligned position thereof and isolate the opposite side turn portions of the Coils from the loose stack of sheets, and several slot wedges in the slots, some of which are superimposed on the slot linings are to the opposite side turn parts of the coils to prevent movement out of the grooves towards the bore, characterized by the following steps: Actuating the advancing means to advance about the rotatable mandrel through the preselected setting positions move in the workstations; Fasten the loosely wound laminated core on the rotatable Mandrel in a first work station in such a way that the bore of the loose stack of sheets is in a preselected angular range with respect to the horizontal, and advancing the rotatable mandrel with the loose thereon wound laminated core from the first workstation to a second workstation; Preheating the loosely wound laminated core on the rotatable mandrel to at least a preselected temperature by eating one of the heater sets in the second work station with electrical power; Moving the rotatable mandrel with the loosely wound laminated core on it out of the second work station into one of the preselected setting positions in a third work station and moving one of the dispenser sets from the rest positions to the advanced positions of the same overall on the opposite end winding parts the coils of the loosely wound laminated core on the rotatable mandrel in the one preselected setting position in the third workstation; Connecting a rotation causing means to the rotatable mandrel at least when the rotatable mandrel in the is a preselected setting position in the third work station, thereby enabling the common rotation of the rotatable To cause the mandrel and the loosely wound laminated core located on it in one direction at a rotational speed, the total between a selected low Value and a selected high value; Dispensing the liquid adhesive from the one set of dispensers total with preselected inflow quantities on the opposite end winding parts of the bobbins, so that any dripping of the liquid adhesive from the opposite end winding portions of the bobbins is at least minimized is when the speed of rotation of the rotatable mandrel and the loosely wound laminated core located thereon in the a direction totaling around the preselected low value and any throwing off of the liquid adhesive from the opposite end winding parts of the bobbins at least minimize when the rotational speed of the rotatable mandrel and the loosely wound laminated core located thereon is a total of the preselected high value; Holding part of the liquid adhesive in the opposite end winding parts of the coils on which it is dispensed and flowing another portion of the liquid adhesive from the opposite end winding portions of the coils as a whole along the opposite side winding parts of the coils into the grooves of the loose sheet metal stack, in which the opposite side turn parts of the coils are received, thereby creating the grooves in which one of the opposite side turn portions of the coils are received, at least partially with the liquid Glue to fill while filling the grooves in which the other of the opposite side turn parts of the Coils are included, with the adhesive is prevented altogether when the rotatable mandrel and that located on it loosely wound laminated core are rotated together in one direction in the one preselected setting position in the third work station; Flowing the liquid adhesive past at least the groove liners and outwardly thereof into the grooves and directing a portion of the liquid adhesive from all of the grooves to the peripheral surface of the stack of loose sheets in wetting contact between the touching sheets in the loose sheet stack as a whole by capillary action ; Stop dispensing the liquid adhesive onto the opposite end turn portions of the bobbins and move the a set of dispensers from the advanced positions back to the rest positions in the third work station; Moving the rotatable dome and the one on it loosely wound laminated core from one preselected setting position to another preselected setting position in the third workstation and disconnecting the rotatable Doms from the one device causing the rotation; Connect the rotatable dome with a further rotation effecting device at least when the rotatable mandrel with the loosely wound laminated core located on it is in the further preselected setting position in the third workstation, and thereby resuming the common Rotation of the rotatable dome with the loosely wound laminated core located on it in one direction to the one opposite further direction with a rotation speed overall between the selected low Value and the selected high value; Advancing another set of dispensers from the Rest positions in the advanced positions overall on the opposite end winding parts of the bobbins of the loose wound laminated core on the rotatable mandrel in the further preselected setting position in the third work station; Application of the liquid adhesive from the further delivery device set with preselected inflow amounts to the opposite end winding parts of the sinks so that any Dripping of the liquid adhesive from the opposite end winding parts of the coils is at least minimized, if the rotational speed of the rotatable dome and the loosely wound laminated core located on it in the further Direction is around the preselected low value, and any throwing off of the liquid adhesive 3445079 - ³⁷ - material from the opposite end winding parts of the bobbins at least to minimize when the rotational speed of the rotatable dome and the loosely wound laminated core located on it, a total of the preselected high Value lies; Flowing a portion of the liquid adhesive applied to the opposite end turn portions of the reels is, of these from a total of along the opposite side turn parts of the coils in the grooves of the sheet stack, in which the opposite side turn parts of the coils are received, and at least partially filling the slots, in which the other opposite side turn parts of the coils are housed with the liquid adhesive that flowed into them while filling the grooves with the liquid glue, in which the one opposite Side turn parts of the coils are received, in the common rotation of the rotatable mandrel and the one thereon loosely wound laminated core in the further direction is prevented overall, thereby filling the Compensate for grooves in the stack of sheets with the liquid adhesive as a whole; Repeating the flowing and directing step while the rotatable mandrel and that on top of it are loose wound laminated core are rotated together in the further direction; Holding part of the liquid glue in the opposite one Winding head parts of the coils to which it is applied is, while the rotatable mandrel and the loosely wound laminated core located on it together in the further Direction are rotated so that the winding is soaked at least as a whole with the liquid adhesive; Terminate the application of the liquid adhesive to the opposite end turn portions of the spools and withdraw the further set of dispensers from the advanced positions to the rest positions in the third work station; 3 A A 6 O 7 9 Separating the rotatable Doras from the other causing the rotation Establishing and moving the rotatable mandrel and the loosely wound laminated core located on it the further preselected setting position in the third work station in a fourth work station; Reheating of the loosely wound laminated core at least to a further preselected temperature in order to harden the to effect liquid adhesive, which is contained in the loosely wound laminated core, thereby the loosely wound Glue the laminated core to the one-piece mass by adding another heater set in the fourth work station is fed with electricity; Moving the rotatable mandrel and the located on it, glued, loosely wound laminated core from the fourth work station through a fifth work station and thereby Cooling the bonded, loosely wound sheet-metal package in the fifth work station; and Moving the rotatable mandrel and the glued, loosely wound laminated core located on it from the fifth Workstation back to the first workstation and Detachment of the glued, loosely wound laminated core from the rotatable mandrel in the first work station. 56. Method of operating a device for gluing a loosely wound sheet metal package for a dynamo-electric Machine with a curable liquid adhesive, the device having several work stations, at least a rotatable mandrel, drive means for progressively moving at least one clamping device therebetween several preselected setting positions by the work stations, and several devices for rotating the Clamping device in one direction and in a further direction opposite thereto in various preselected Adjustment positions of the clamping device in at least one of the work stations, several sets of devices for Dispensing of the liquid adhesive, which in total in the different preselected setting positions of the clamping device are arranged in the one work station, and devices for generating heat in another of the workstations, the loosely wound laminated core having several Has sheets which are arranged in contact with one another to form a total loose stack, the two opposite Has end faces between which a circumferential surface is arranged is, a plurality of grooves that are a total of axially through the loose stack of sheets between its opposite Extending end faces for receiving the winding of the loosely wound laminated core, the winding having multiple coils each having at least one conductor turn, with opposite side turn parts of the coils in the Grooves of the loose sheet stack added and opposite end winding parts of the coils in total in annular Groupings are arranged on the opposite end faces of the loose sheet metal stack, characterized by the following Steps: Fastening the loosely wound laminated core in yet another of the workstations on at least one rotatable one Mandrel, so that the grooves of the loose sheet metal stack extend overall in the axial direction through the loose sheet metal stack, and actuating the drive means to effect the movement of the rotatable mandrel with the loosely wound mandrel thereon To effect laminated core through the workstations; successive connection of the rotating devices with the rotatable mandrel to cause its rotation in one and the other direction at least when the rotatable The mandrel is in the various preselected set positions in the at least one work station; successively actuating the dispenser sets to dispense the liquid adhesive from them onto the opposing ones Winding head parts of the coils of the winding on the loose bo ~ to dispense the wrapped laminated core, and let the liquid adhesive flow from the opposite winding head parts the coils from a total of along the opposite side winding parts of the coils into the grooves of the loose sheet metal stack, in which the opposite side turn parts of the coils are accommodated, with the common rotation of the rotatable Doms and the loosely wound laminated core located on it in one direction and in the other direction, if the rotatable mandrel is in the various preselected set positions in the at least one work station; Directing a portion of the liquid adhesive out of the grooves in the loose stack of sheets as a whole by capillary action in wetting contact between the touching sheets in the loose sheet stack, this liquid adhesive penetrates overall in the radial direction from the grooves to the circumferential surface of the loose sheet metal stack; and Heating of the loosely wound laminated core while moving the rotatable mandrel through the preselected setting positions in the other work stations by means of the heat generated by the heating devices in the other work station and thereby hardening of the liquid adhesive contained in the loosely wound laminated core so as to bond it to effect an overall uniform mass. 57. Method of operating a device for gluing a loosely wound laminated core with a curable liquid Adhesive to an overall uniform mass, wherein the device has several work stations and at least has two sets of devices for dispensing the liquid adhesive, the loosely wound laminated core has a plurality of metal sheets, which are arranged in a stack in contact with one another, the two opposite one another End faces has several grooves that extend axially through the stack of sheets between the opposite sides End faces extend to accommodate the winding of the loosely wound laminated core, the winding having multiple coils having at least one conductor turn with opposite side turn portions of the coils in the slots of the stack of sheets added and opposite end winding parts of the coils in total in ring-shaped groupings are arranged on the opposite end faces of the stack of sheets, characterized by the following steps: progressive movement of the loosely wound laminated core between several preselected setting positions through the Workstations of the device; Preheating of the loosely wound laminated core while it is moving through one of the work stations of the device; Rotating the loosely wound laminated core in one direction in at least one of the preselected setting positions of the same and in a further direction opposite to the one direction in at least one further of the preselected ones Adjustment positions of the same during the movement of the loosely wound laminated core through another of the work stations the device and actuation of the dispensing device sets in the further work station of the device, around the liquid adhesive on the opposite end winding parts of the coils of the loosely wound laminated core during at least part of the rotation of the loosely wound laminated core in one direction and in the further direction in the at least one and in the further preselected setting position of the same in the further work station of Dispense device; Allowing the liquid adhesive to flow from the opposite end winding parts of the coils along the opposite side winding parts of the coils into the grooves of the loosely wound laminated core, in which the opposite side winding parts of the coils are received, and guiding part of the liquid adhesive from the grooves into wetting ones by capillary action Contact between the metal sheets in contact with one another in the loosely wound laminated core during rotation of the loosely wound laminated core in one direction and in the further direction in the at least one and in the further preselected setting position of the same in the further work station of the device; \ mö further heating of the loosely wound laminated core during its movement by at least one more of the work stations of the device and thereby hardening of the liquid adhesive in the loosely wound laminated core to To let the liquid adhesive harden and so the winding and the sheets of the loosely wound laminated core to stick to the overall uniform mass.