DK145638B - MACHINE FOR USING MEASURES INVITED TO CONNECT TWO PLATE PARTS - Google Patents

Description

145638

The invention relates to a machine of the kind specified in the preamble of claim 1 *.

Such a machine is known e.g. from British Patent Specification No. 1.0 ^ 5.35 ^. In this known machine, the piston of the punching mechanism 5 is placed at the top of the punching mechanism so that the punched fastening tabs extend upward. There, the counter holder for the pressing tool is placed above this so that the fastening tabs from below must be pressed into the container plates. These conditions mean, among other things, that it is difficult to monitor the operation of the machine while the machine is working. Furthermore, using this known machine, it is not possible to connect a plurality of container parts by means of fittings to form a pipe.

The object of the invention is to provide a machine of the specified kind which enables constant monitoring of the machine's operations so that the machine can be made to operate at maximum capacity and which is also capable of connecting a plurality of tubular parts so that that a container's body can be produced in one and the same machine by immediately following 20 consecutive operations, without the need to transport interconnected parts from one machine to another.

According to the invention this is achieved by a machine of the kind according to the embodiment of claim 1, characterized in. Due to the design of the retainer as a protruding arm in connection with the V-shaped design of the press tool and the retainer arm, the assembly of container plate parts in tubular form is made possible by the elongated fittings which, as a result of the latter design, achieve the necessary V -form during the actual pressing of the bracket onto the container plates, so that a separate prior molding operation for this purpose is avoided. Among other things, this mode of operation is made possible by the fact that the tool is placed above the base and the counter support, which also ensures that the machine function is easy to monitor at all times. This latter measure is further made possible by the use of the bracket placed on the press tool for retaining the bracket against the underside of the press tool and by the special means which serve to keep the belt away from the piston top during the longitudinal displacement so that the punched fastening tabs neither seems annoying nor destroyed during the band's advance.

5 It is particularly advantageous, if according to the invention, said holder is designed as further specified in claim 2, which design ensures the effective and safe effect of the holder without being too complicated.

In this case, according to the invention, the configuration 10 may further be as set out in claim 3, which gives the simplest machine construction, although it may often be convenient to ensure perfect operation of the holder if the design is instead as set out in claim h.

Furthermore, irrespective of how the movement of the holding members from the first to the second position is effected, it may be advisable, according to the invention, that the design is as specified in claim 5, thereby providing a safe control of the belt without the danger of unintentionally held by the holder.

However, according to the invention, the holder can also be shaped as claimed in claim 6, so that the band, after bending itself, is released from the holder.

According to the invention, the retainer can advantageously be configured as claimed in claim 7 so as to take the form of a free-carrying arm which can in no way be in the way of container plate parts arranged in partial or full tubular form. In this case, the design can furthermore be as set out in claim 8, thereby ensuring that the arm can be well supported during operation.

In addition, according to the invention, the configuration can be as claimed in claim 9, so that the said means by themselves follow the movements of the punching mechanism.

Furthermore, according to the invention, the configuration may be as claimed in claim 10, preferably as further stated in claim 35 11, so that the band is guided simply in the lateral as well as in the vertical direction by the same organ set.

3 145638

The invention will now be explained in more detail with reference to the drawing, in which: FIG. 1 is a side view of an embodiment of a machine according to the invention; FIG. 2 is, on a larger scale, part of the embodiment of FIG. 1,

Pig. 3 is a sectional view taken along line 3-3 of FIG. 2, FIG. 4 is a sectional view taken along line 4-4 of FIG. 2, FIG. 5 is a side view of another embodiment of a machine according to the invention; and FIG. 6 is the one shown in FIG. 5, seen from the end.

In FIG. 1, 1 as a whole denotes the tape processing portion of the machine by which the tape to form brackets to be pressed onto container portions is processed, and 2 as a whole a supply of a belt 3 which is fed through the feed station 4 to the tape processing portion 1. The belt supply 2 may advantageously consist of a coil on which is wound a tape reel of several hundred meters in length. The band 3 is usually made of metal, e.g. carbon steel, and has a width and thickness 20 adapted to allow the machining of the belt to be carried out smoothly. Thus, in practice, the metal strip may have a width of 3 - 5 cm and a thickness of 0.5 - 1.5 mm. However, the invention is not limited to the use of metal bands, as other materials are conceivable.

The feeding station 4 in this case consists of two rollers 6 and 7 located at the top of a column 5, the former of which is driven by a motor 8, while the second is resiliently kept pressed against the belt conveyed between the rollers 3. Between the feeding station 4 and the processing part 1 runs the belt 3 through a guide 9 which e.g. may consist of two elongate plates spaced apart by spacers, between which the belt is guided.

The machining part 1 comprises a fixed stand as a whole denoted by 10, and a tool movable in relation to the stand 10 as a whole denoted by 11. This movable tool consists in the illustrated embodiment of an elongated beam body, which is movable in a vertical direction down towards and up from the stand 10 by means of a drive mechanism, not shown in the drawing 145638 b, e.g. a drive mechanism similar to that used in connection with hammers. The present drive mechanism is indicated in the drawing by means of connections 12.

5 On the movable tool 11 is arranged a pressing piston 13 which cooperates with a stop 1b on the stand 10, a clipping mechanism 15, and a punching mechanism 16 which cooperates with a lower piston 17 on the stand. 10th

The configuration of the punch plunger and the retaining bracket is shown in more detail in FIG. 2 and U. The plunger 13 has at or near one end of the beam body 11, the exit end, a slider 18 consisting of an elongated plate, preferably of carbide, which plate is secured to the underside of the tool 11 by screws 19. The slider plate 18 has on its underside is a V-shaped recess 22 with two pressing faces 20 and 21, which between them form an angle of preferably about 160 °.

The resistor 1k consists of an arm 23 raised from the frame 10 located below the slider plate 18, the upper side of which, as is best seen in Fig. 2, has an angle with each other forming support surfaces 2b and 25 which during a pressing operation support two container walls 26 and 27 · The angle between the support surfaces 2b and 25 in this case is 200 °, so that the angle between the pressing surfaces 20 and 21 of the slider 18 together with the angle between the support surfaces 2b and 25 forms four 25 right angles or 360 °. Also, the underside of the retainer arm 23 is V-shaped, and the angle between the two undersides may be the same as the angle between the two upper support faces 2b and 25.

On the underside of the slider 18 is provided a holder 28 to 30 holding and guiding the bracket or band 3 with respect to the slider until it is pressed to the container walls 26 and 27. In the embodiment shown, the holder consists of two inclined holding bodies 29, movable in slots 30 in the slider plate 18. Most conveniently, the holding bodies 29 are elongated strips which are held in the slots 30 by means of stop means not shown in the drawing. In FIG. 2 and 1, the holding bodies 29 are shown in a first position extending from the slider in which the distance between the adjacent parts of the holding bodies, ie. the distance between the lower edges thereof 5 is less than the width of the bracket 3. Hereby the bracket 3 is held between the inclined parts of the holding bodies inwardly.

During a pressing operation, the slider 18 is displaced in the direction of the counter arm 23, and the retaining members 29 thereby engage the retaining walls 26 and 27, the retaining members 10 will be pushed into the slots 30 and assume a position at which the distance between their lower edges is greater than the width of the bracket 3 so that the bracket is released and can be pressed firmly to the container walls. As shown in FIG. 4, be movable from the first to the second position, simply under the influence of gravity, ie. that as a result of your own weight they will apply to the first position shown in the figure, in which the bracket is held in relation to the slider. It is also possible in the slots 30 to place springs e.g. screw compression springs still seeking to guide the hollow 20 delays to the one shown in FIG. if shown the first position. In FIG.

1, it is also apparent that the retaining bodies 29 are located in the immediate vicinity of the V-shaped recess 22 of the slider.

The aforementioned clipping mechanism 15 is constituted in the illustrated embodiment of a first egg or edge 31 formed on the slide plate 18 which is movable relative to a second, on the frame 10, suitably its lower piston 17, being an egg or edge which is located in the same vertical plane as the first egg 31. As can be seen clearly in FIG.

2, the second egg 32 is at a certain height above the retainer arm 23. In this way, the band 3 will be cut to produce a single bracket immediately prior to pressing it to the container portions.

The punching mechanism included in the machine, as shown in more detail in FIG. 2 and 3, has a plurality of punching means 33 which are individually or in groups removable or removable, and which are movable into holes 3 ^ in the lower piston 17. The individual punching means 33 consist of cylindrical pins whose downwardly directed ends are bevelled. or tapered so that they can penetrate the belt and in this die usually four fastening tabs. The punching means are arranged in two parallel rows to form two rows of attachment-5. tangles in the ribbon. The individual punching means may also be arranged in a different way, e.g. so that the fastening tabs extend in zigzag rows or in more than two rows. The punching means are grouped together to a plurality of punching balls 35. In the embodiment shown, each punching holder 10 35 has three pairs of punching means, but it may also have more or fewer. The die holders with the die means are removably connected in the following to the movable tool or beam member 11. As can be seen in FIG. 3, the sides of the punch holder 36 are inclined and 15 abut a pair of corresponding inclined sides of two strips or guides 37 and 38. Of these, the strip 37 is attached to the beam body 11 by means of screws available from the underside 39. The second strip 38 is attached. to the girder body 11 by means of screws 1) -0, which are readily accessible from the upper side of the girder 20. Inserted between the upper sides of the die holders and the beam body 11 is a fitting piece 1) 1 which, like the die holders and moldings, can advantageously consist of cemented carbide. When the screws 39 and UO are tightened and the strips 37 and 38 abut against the beam body 11, the punches 25 35 are clamped and at the same time retained relative to the beam body 11. When one or more punches 1) 3 are to be removed, the screws 1 ) 0, so that the clamping action of the strip 38 against the punch holder ceases, after which the adapter piece 1) 1 is removed and the stamp punch concerned can be removed or inserted. Thus, it is possible to adjust the number of punching means to different lengths of the fittings made in the machine. If these are to be of maximum length, a full number of punches are used, and if smaller length fittings are to be made, a number of punch holders adapted to the length of the fittings is removed and associated punching means.

Between the punching mechanism and the lower piston 17 is placed one of the ironing element 1) 2, which, after the fastening tabs are formed therein, is removed from the punching means. This stripper element consists of a plate cut through holes 43 for the punching means, which is connected to the beam body 11 through springs 1 + 1 +, preferably screw press springs. To control the scraper plate 1 + 2 so that it always moves vertically, there is a guide pin 1 + 5 connected to the plate, which with sliding fit is slidable in sockets or brackets 1 + 6, which are fixed on both sides of the beam body 11. In FIG. 3, for simplicity, only a single guide pin with associated socket is shown, although control devices 10 are provided on both sides of the beam body. The screw pressure springs 1 + 1 + seek to hold the iron plate 1 + 2 away from the beam body 11 and so that the punching means in the initial position take up the position shown in FIG. 2 to 3 in which their lower ends are not in contact with the band 3.

15 On the underside of the scraper plate or more specifically in an insert part 1 + 7 in the plate is formed a recess 1 + 8, which is corresponded to an elevation 1 + 9 on the lower plunger 17. This elevation 1 + 9 bears a somewhat smaller width than the band 3. The recess 1 + 8 in the insert portion 1 + 7 bore two or more inclined side surfaces 50. Thus, during a punch operation, the elevation 1 + 9 will penetrate the recess 1 + 8, the two edge portions of the band 3 will be deformed thereby bending or obliquely compared to the tape in general. These inclined edge portions will later penetrate into the wall material during the pressing of the applicable container portions, so that the edge portions of the bracket are prevented from sliding relative to the container walls. A plurality of spring bodies 51 which serve to hold the belt 3 at a distance of one of the lengths of the fastening tabs from the upper surface of the piston are further connected to the lower piston 17, so that it is known in a known way that the fastening tabs do not engage the piston after punching. In practice, the spring bodies 51 may consist of elongated metal pieces which are displaceable in cutters 52 in the piston and which are actuated by screws or similar means 53 35 by screw pressure springs 5 * +, which seek to hold the bodies 51 in a constant, above stamped bearing position. On the spring body 51 "which is located closest to the cutting device 15", a guide element 55 in the form of 8 145838 is arranged a bent leaf spring which is intended to guide the punched band 3 into the holders 28 of the slide 18.

In FIG. 1, it can be seen that the arm 23 serving for the plunger 13 serves as a carrier. This allows a 5 container page consisting of e.g. four walls may be inserted over arm 23 during compression at least of the last of the four corner brackets which adhere to the container walls. However, if the arm 23 is to be extremely long so that it can allow the pressing of long brackets, the arm as shown in 10 can. FIG. 1, at the end extending from the rack 10, is supported by a support member 56 which is pivotally movable between a resting position in which it is out of engagement with the arm and allows the container side to be placed about the arm and a working position in which body supports the arm end.

The operation of the support means 56 * is otherwise coordinated with the machine operation in such a way that the support means merely supports the arm during the pressing operation, but otherwise takes its resting position out of engagement with the arm.

The container portions in which the brackets are to be pressed are preferably comprised of a wood material, e.g. plywood. However, it is also possible to use the machine in connection with containers of other material, e.g. cardboard, plastic or combinations of cardboard, wood and plastic.

The machine described works as follows: From the supply coil 2, the belt 3 is fed stepwise to the processing part 1 by means of the feed rollers 6 and 7, during each step, the belt is fed a piece corresponding to the length of the remaining bracket, which is again determined by the dimensions of the container. or the container parts on which the bracket is to be pressed. During the belt feeding, the movable tool 11 is in an upper rest position, at which the punching means are out of engagement with the belt. When a feeding step is completed, the moving tool 11 is caused to move downwardly by means of the drive mechanism not shown in the drawing, whereby the following occurs:

During a first operation, a first row of fasteners is punched into the belt 3, the punching means 33, when the tool 9 has moved so far down that the ironing board 1 * 2 abuts the lower piston 17, is caused to cut the belt and move a down into holes 3¾9 of the lower piston, whereby the band material is cut by the punching means and 5 formed against the walls 3 3 of the holes. During this stage, the tool 11 works against the influence of the compression springs 1 * U. Immediately before the stripper plate 1 * 2 engages the lower piston 17, bending or embossing of the edge portions of the tape 3 is produced, the raised portion 1 * 9 of the lower piston pushing the tape 10 into the groove plate 1 * 8, whereby the edge portions of the tape assume the shape which is determined. of the recessed side walls 50.

In another, time-independent operation of die-cutting, the band 3 is cut to form a single sheet which already exhibits fastening tabs produced by a previous punching operation. The trimming of the tape is done by the trimming mechanism 15, the first egg 31 of the slider 18 during the downward movement of the tool 11 will pass the second egg 32, thereby producing the trimming.

20 During a third operation, which takes place later than the mowing, the clipped bracket is pressed firmly against the container parts concerned. This is effected by the slider 18, the holders 28 holding and guiding the bracket until it reaches its lower end position, in which the bracket is fastened to the container parts by means of the fastening tabs.

As the tool 11 moves upwards again after a downward stroke, the wiper plate U2 will disengage the belt 3 with the punching means 33, the springs in * 1 * displacing the plate along the punching means and thus removing the belt from the die 30. At the same time, the spring bodies 51 depressed during the punching are guided upwards by the springs 5 ^ and holding the belt 3 at a certain height above the lower piston 17 · This ensures that the punched fastening tabs are out of engagement with the lower piston so that a longitudinal advance of the belt can take place. , 35 without being hampered by the punched fastening tabs.

s 1 ° H5638 When the tool 11 recovers its upper end position, a new belt length is advanced, whereby the belt part with the rows of fastening tabs punched out during the previous work stroke is moved onto the press plunger 13 »Then the operations are repeated so that a new row of fastening tabs are punched out. the belt is cut and the brackets 28 in the pressing piston 13 are pressed into the respective container parts.

The tool 11 is most advantageously operated by means of manually actuated maneuver handles, and the work which 10 places the container parts 26 and 27 on the head restraint 1 determines the movement of the tool.

In Figs. 5 and 6 there is shown another embodiment of a machine according to the invention, which machine is intended for use in connection with shorter fittings than the one in fig. 1 to U, the machine shown in FIG. 5 and 6 are particularly intended for fastening brackets to boxes or containers whose walls form 90 ° with each other. This machine also has a stand 10 and a moving tool 11 which, through a connection 12, is connected to a drive mechanism (not shown) for producing an appropriate stroke movement. A protruding arm 23 is provided on the rack 10 with two supporting faces 2k and 25 for the container walls 26 and 27. The movable tool 11 has a slider 18, a cut-off mechanism 15 and a punching mechanism 16, the lower piston 17 of which is located on the rack 25 10. in the machine a stripper element h2, a spring element 51 and a control element 55 · On the lower piston 17 is arranged an elevation 9 which corresponds to a recess in the stripper element h2.

In the embodiment shown in FIG. 5 and 6, the angle 30 between the two pressing faces 20 and 21 of the V-shaped recess 22 of the slider is less than 90 °. The angle between said pressing surfaces can e.g. being 85 ° to 89 ° · Since the two container walls 26 and 27 are perpendicular to each other, this means that the two edge portions of the bracket will, at a greater degree of pressure 35, than the middle portion of the bracket will seek to penetrate or lie close to the walls 26 and 27th

145638 11

In this case, the holder 28 serving for holding and guiding the belt or bracket relative to the slider 18 consists of two opposite grooves 57 and 58 in the pressing surfaces 20 and 21. of the cut-out 22, the distance between these two grooves is greater than the belt. 3 before being bent, but less than the distance between the two edges of the bracket after the bending is done. This causes the belt or bracket to be released from the grooves 57 and 58 in connection with the bracket pressing on the container walls 26 and 27.

The cutting mechanism 15 consists of a knife or cutter 59 connected to the moving tool 11 which is arranged to cut the band 3. In cooperation with the edge or the edge 32 of the lower piston 17, the knife 59 is as shown in FIG. 6, at both ends connected to the piston rods 60 in two pneumatic piston-cylinder mechanisms 61 acting as springs for the knife 59 · The knife is directed vertically by two pins 62 which engage elongate guide grooves 63 in the knife.

On one side, see fig. 5, a first shoulder 6k is formed which limits the stroke length of the knife as the tool 20 11 moves downward. On the opposite side of the knife is formed another abutment 65 which ensures that during the upward movement of the tool the knife is carried by a nose 66 on the slider 18.

Also in this embodiment, the individual punching means 33 are grouped together in a plurality of die holders 35. These, 25 having bevelled side faces, are interposed between two chin-shaped strips 67, of which only one is seen in FIG. 5 · For clamping the punch holders between the moldings 67, an L-shaped wedge tool 68 with a screw member 69 which is screwed into the tool or the girder body 11. When the screw 69 is pulled 30, the V-tool 68 will move to the right in FIG. 5 and clamping the individual punch holders 35 with their inclined side faces abutting corresponding inclined side faces in the guide strips 67. To disassemble one or more punch holders, unscrew the screw 69 with a single handle, thereby loosening the wedge tool 35 and removing the punch holder from the space between the strips 67 · 12 145638

The FIG. 5 and 6, with the exception of the cutting device 15 and the holder 28, in the same way as the machine according to FIG. 1 to U.

Control and operation of the various units included in the machine according to the invention can be carried out by electrical, pneumatic or hydraulic means, as desired in each case. As shown in FIG. 1, is carried out by means of rollers, but is it also possible to use the feeding mechanism? consisting of articulated arms or other mechanical elements which grip the belt and carry it longitudinally.

In addition to V-shaped edge fittings of the kind described above, it is possible to apply the machine according to the invention for use with other types of fittings, e.g. for 15 use in connection with locking brackets. This simply requires a change of the punching mechanism, the cutting mechanism as well as the pressing tool in adaptation to the fittings of the desired shape.

Claims (8)

145638 Patent Claims. A machine for interconnecting, by means of brackets, two plate parts for use in forming a container, said machine comprising at least one stock (2) with belt (3), a stan- dard mechanism for punching fastening tabs in the belt and a clipping mechanism (15) * by which the belt can be cut to form elongated, substantially flat brackets, and the punching mechanism (16) and clipping mechanism (15), together with a pressing tool (13 and 2J) for fixing the brackets (13 and 2J) ) is arranged in a common tool (11) movable back and forth relative to a stationary support or stand (10), said tool (11) having a piston (17) for the punching mechanism (16), at or near it of which is arranged a retaining bracket (23) for the pressing tool, wherein the tool (11) is arranged to perform under one and the same unidirectional working stroke both a punching and a cutting and a pressing operation, characterized in that ed that the tool (11) is located above the stationary base (10) and the counter support (23), which is shaped like a projecting arm (10), that the pressing tool (13) has one having two pressing surfaces ( 20 and 21) V-shaped recess (22), the retainer arm (23) has a V-shaped support member directed against the pressing tool (2h and 25), and a V-shaped support part is provided on the pressing tool. a holder (28) for retaining the bracket against the underside of the pressing tool and for controlling the belt during the length of the belt up to the time of the bracket for pressing the respective plate parts (26 and 27) and the machine having means (51) arranged for less than 30 the longitudinal displacement of the belt to keep the belt away from the upper side of the piston (17) and to prevent the downwardly fastening tabs of the bracket from engaging the piston. Machine according to Claim 1, characterized in that the holder (28) has at least two inclined holding members (29) which are movable in downwardly converging slots (30) in the pressing tool (13) between a first position extending therefrom for holding the bracket, in which the distance between the adjacent parts of the holding members is less than the width of the bracket or belt (3), and a second position in which the distance between the holding members is close together parts are larger than the width of the bracket so that the bracket can be released. Machine according to claim 2, characterized in that the holding bodies (29) are movable from the first to the second position under the influence of gravity. Machine according to claim 2, characterized in that the holding bodies (29) are movable from the first to the second position under the influence of springs. Machine according to claim 2, 3 or U, characterized in that the holding bodies (29) are arranged so close to the longitudinal edges of the cut-out (22) that they can engage the longitudinal edges of the bracket or belt. Machine according to claim 1, characterized in that the holder (28) is made up of two opposite grooves 20 (5T and 58) in the pressing faces (20 and 21) of the cut-out, and that the position between the grooves is greater than the width of the belt before bending but less than the distance between the edges of the bracket after bending. Machine according to claim 1, characterized in that the holding arm (23) extends substantially horizontally from the base (10) and is enclosed by a number of interconnected container plate parts. Machine according to claims 1 and 7, characterized in that a supporting member (56) is movable at the end of the support arm (23) away from the base (10).