JP2013252590A - Device and method for manufacturing laminated material for laminated core production - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a device for manufacturing a laminated material 5 for laminated core production that can obtain a laminated core made of the laminated material 5 having a simple structure, superiority in mass production, and high dimensional accuracy by a composition in which a feed roller 6 for intermittent carrying of a hoop material 1 is disposed in a position adjacent to a cutting position 3, the feed roller 6 is driven, for example, by a rotary drive source 13 such as a stepping motor and servo motor, and the cutting width of the cut piece 1A is adjusted by controlling the feed amount by a preset program.SOLUTION: A device for manufacturing a laminated material for laminated core production is configured to continuously cut a carried protruding part of a tip part of a hoop material 1 protruding from a support part 8 which is intermittently carried by an intermittent drive of a feed roller 6. The feed roller 6 is disposed on the front side of the cutting device 3 in the carrying direction and on a position adjacent to the cutting device 3 within allowable tolerance of the feed error. A cutting width of the hoop material 1 is controlled by variably controlling the rotation amount of the feed roller 6 so that the laminated material 5 with high dimensional accuracy in substantially circular form in the side view is obtained.

Description

  The present invention relates to a laminated material production apparatus for producing a laminated material for producing a laminated material for producing a laminated core used as an iron core (magnetic block) inserted in a coil such as an ignition coil or a transformer, and a laminated material The present invention relates to a method for manufacturing a laminated material for manufacturing a core.

  For example, strip-shaped single plates (cut pieces) such as silicon steel plates are sequentially stacked in the plate thickness direction so that the plate width increases and decreases, and the cross section (side view) of this laminate is, for example, substantially circular (as a whole, approximately cylindrical) A laminated material formed in a laminated shape so as to have a shape) and bonded together to produce a block-shaped laminated core. When such a laminated core is laminated in a substantially circular cross section, for example, On the other hand, since the filling efficiency as a magnetic block is good and the size can be reduced, it is preferably used as a magnetic block of various circular coils.

  In order to produce a laminated material that is the main part of such a laminated core, punching the plate material by pressing and laminating it requires expensive molds and cumbersome mold replacement work. In addition, the manufacturing cost is high, and punching is required, so the material yield is poor, there is a material loss, the lamination process is required, the productivity is poor and the practicality is inferior.

  On the other hand, by adjusting the cutting width of the hoop material (for example, a magnetic plate such as a silicon steel plate that is continuously supplied) and cutting it one after another, this cutting piece is laminated, so there is no need to remove it and no expensive metal mold is required. However, the laminate material can be efficiently laminated at a low cost, but due to the variation in the feed amount of the hoop material, it is difficult to produce a laminated core with high dimensional accuracy because the dimensional accuracy of the cutting width is not stable. (Japanese Patent Laid-Open No. 10-163051).

  For example, in a conventional apparatus such as Japanese Patent Laid-Open No. 10-163051, the hoop material feed amount is constant, and the interval between a pair of cutting devices provided in the feed direction (the hoop material transport direction) is adjusted and set to cut the cut piece. Because of the configuration that adjusts the width, the movement adjustment accuracy of this cutting device cannot be increased, and the variation in the feed amount of the hoop material cannot be suppressed, so the dimensional accuracy of the laminated material that stacks by increasing or decreasing the number of cut pieces It was difficult to increase the value.

  Even if the conveying device for feeding the material is an air feeder system, the feeding accuracy cannot be increased.

Japanese Patent Laid-Open No. 10-163051

  In view of such a current situation, the present invention has a simple configuration and is excellent in mass productivity, and has a structure in which a feed protruding portion protruding from a support portion of the hoop material is cut by a cutting movable portion, and the distortion of the hoop material is reduced. A feed roller that intermittently conveys the hoop material is disposed at a position close to the cutting position so that the influence of deflection due to its own weight is small, and this feed roller is driven by a rotational drive source such as a stepping motor or servo motor. Even when a rotation transmission mechanism is provided, it is driven by a belt or gear without backlash, and the feed width of the hoop material by this feed roller is controlled by a preset program to adjust and control the cutting width of the cut piece It is possible to obtain a laminated core made of a laminated material with a high dimensional accuracy with a simple configuration. And its object is to provide a device.

  The gist of the present invention will be described with reference to the accompanying drawings.

  A cutting device 3 is provided in the conveying device 2 that conveys the hoop material 1, the hoop material 1 is cut into strips one after another, and the cut pieces 1A are discharged into the discharge portion 4 in a laminated state, and a laminated material for producing a laminated core 5 is a laminated material manufacturing apparatus for manufacturing a laminated core, in which the conveying device 2 includes a feed roller 6 that feeds and drives the supplied hoop material 1, and the cutting device 3 includes: The support portion 8 that supports the hoop material 1 that is intermittently transported by the intermittent drive of the feed roller 6 of the transport device 2, and the feed protrusion that protrudes in the transport direction from the support portion 8 at the tip portion of the hoop material 1. The cutting roller 3 is configured to include a movable movable portion 9 that cuts a portion, and the feed roller 6 is placed on the front side of the cutting device 3 and a feed error due to distortion of the hoop material 1 or deflection due to its own weight falls within an allowable error range. Proximity Feed roller control for controlling the cutting amount of the hoop material 1 by variably controlling the feed amount of the hoop material 1 by program-controlling the amount of rotation of the rotational drive source 13 which is disposed in the apparatus and intermittently drives the feed roller 6 The feed roller control unit 10 controls the feed amount of the hoop material 1 so that the cutting width of the hoop material 1 is gradually increased or gradually decreased, or the discharge unit 4 is combined with the increase and decrease. For producing a laminated core, wherein the strip-shaped cut pieces 1A are laminated and laminated material 5 shaped in a desired shape such as a trapezoid, a rhombus, a circle, or a semicircle in a side view is laminated. This relates to the laminated material manufacturing apparatus.

  Further, the discharge unit 4 is configured to be movable up and down, and a discharge unit lowering device 15 for controlling the lowering of the discharge unit 4 is provided, and the strip-shaped cut piece is formed on the discharge unit 4 by the operation of the cutting device 3. 2. The laminated material manufacturing apparatus for manufacturing a laminated core according to claim 1, wherein 1 A is dropped and discharged one after another, and is lowered as the laminated height of the laminated material 5 is increased. It is related to.

  Further, the cutting movable portion 9 is provided so as to be movable up and down with respect to the support portion 8, and the feed movable portion of the hoop material 1 protruding horizontally from the support portion 8 in the conveying direction by lowering the cutting movable portion 9. The laminated core according to any one of claims 1 and 2, wherein a pressing portion 11 that presses the hoop material 1 against the support portion 8 is provided above and below the hoop material 1 so as to be freely separated from the hoop material 1 when cutting. The present invention relates to an apparatus for manufacturing a laminated material for manufacturing.

  Further, a punching device 12 is provided on the front side of the feed roller 6 to feed a hole at a predetermined position of the hoop material 1 by controlling the feed amount by the feed roller 6. It concerns on the laminated material manufacturing apparatus for laminated core manufacture of any one of these.

  Also, the feed amount of the feed roller 6 is controlled so as to gradually increase and decrease to produce the laminated material 5 having a substantially circular side view as the desired shape, or controlled so as to gradually increase or decrease. Then, a substantially semi-circular laminated material 5 is manufactured as a desired shape, or a substantially circular laminated material 5 is manufactured by combining the substantially semi-circular laminated materials 5 with one side upside down. In order to finely adjust the stacking height, it is controlled so that the cut pieces 1A having a constant width are stacked without increasing / decreasing the feed amount of the feed roller 6 so that the laminated material 5 has the same width stacked portion 5A. The feed roller control unit 10 is configured as described above, and the laminate material manufacturing apparatus for manufacturing a laminated core according to any one of claims 1 to 4.

  Moreover, when manufacturing the said laminated material 5 using the laminated material manufacturing apparatus for laminated core manufacture of any one of the said Claims 1-5, the strip-shaped cut piece 1A is laminated | stacked on the said discharge part 4. As shown in FIG. A laminated material for producing a laminated core, characterized in that one laminated portion of the formed laminated material 5 is turned upside down with respect to the other laminated portion and laminated to obtain a laminated material 5 having different portions. It concerns the method.

  Since the present invention is configured as described above, the feed projecting portion projecting from the support portion of the hoop material is cut by the movable cutting portion, and the hoop material is cut so as not to be affected by the distortion or the weight due to its own weight. A feed roller that intermittently conveys the hoop material is disposed at a position close to the position, and this feed roller is driven by a rotational drive source such as a stepping motor or a servo motor, and the feed roller is driven by a preset program. The hoop material feed amount is controlled to adjust and control the cutting width of the cut piece, so it is possible to obtain a laminated core made of a laminated material with high dimensional accuracy with a simple structure and excellent mass production. This is a revolutionary laminated material production apparatus for producing laminated cores.

  Further, in the invention according to claim 2, since the discharge drop can be adjusted substantially constant, the cut pieces can be neatly aligned and laminated without being disturbed, so that the bundle core is bundled and bonded to produce a laminated core. It becomes a more excellent laminated material manufacturing apparatus for manufacturing a laminated core such that the supply and the process work are good.

  That is, by providing the discharge unit lowering device, for example, it is possible to achieve a moderate drop, it is possible to realize a good automatic stacking by its own weight, and keep this moderate drop by sequentially lowering as the stacking height increases. Thus, rotation and direction disturbance due to a drop impact can be prevented, and neat alignment and lamination can be performed, so that the alignment operation in the next process becomes easy.

  Further, in the invention of claim 3, the feed roller is program-controlled to intermittently convey the hoop material, and protrudes from the support part by a desired cutting width, each time the cutting movable part is moved and cut, Since the holding part that presses the hoop material to the support part is provided in accordance with this timing, the dimensional accuracy of the cutting width of the cut piece is further increased, and a highly dimensional accurate laminated material (laminated core) can be obtained. It becomes a laminated material manufacturing apparatus for manufacturing a laminated core.

  Further, in the invention described in claim 4, a hole used for fixing the laminated core can be automatically opened as needed, and this hole punching device is located upstream of the feed roller for program-controlling the feed amount. Therefore, even when a hole is made, the laminated material manufacturing apparatus for manufacturing an excellent laminated core that can maintain the high dimensional accuracy can be obtained.

  Further, in the invention according to claim 5, in the case where the material thickness of the hoop material varies, in order to improve the accuracy of the stacking height of the stacking material, for example, the stacking of the cut pieces according to the measured value of the stacking height This is an epoch-making laminated material manufacturing apparatus for manufacturing a laminated core that can be finely adjusted by increasing / decreasing the number of sheets.

  Further, in the invention according to claim 6, even if a sag due to cutting (burr caused by this) occurs at one side edge of the cut piece, it is in the middle of the laminated material (especially when cut pieces having the same width are laminated). By turning the layers upside down, the layers can be laminated cleanly without any deviation, and a laminate with high dimensional accuracy (laminated core) can be obtained. In addition, the next process can be well integrated and leakage due to gaps. This is an excellent method for producing a laminated material for producing a laminated core that can obtain a laminated core that hardly generates magnetic flux and does not impair efficiency.

It is a schematic explanatory perspective view of a present Example. It is a schematic explanatory side view of a present Example. It is a lamination | stacking description perspective view which shows the shape of the laminated material of a present Example. It is a lamination | stacking explanatory side view which shows the shape of the side view of the laminated material of a present Example. It is a lamination | stacking description enlarged front view of a present Example. It is a schematic explanatory drawing which makes the substantially semi-circular laminated material of a present Example one side upside down, and makes it a substantially circular laminated material. It is an inversion lamination | stacking explanatory drawing which shows that the other lamination | stacking part is reversed and laminated | stacked with respect to one lamination | stacking part of a present Example.

  An embodiment of the present invention which is considered to be suitable will be briefly described with reference to the drawings showing the operation of the present invention.

  The hoop material 1 is fed and driven by the feed roller 6 of the transport device 2. For example, the hoop material 1 is intermittently conveyed by the feed roller 6 which feeds and drives while supporting the hoop material 1 or sandwiching it with another support roller 16 (nip roller 16). For example, the hoop material 1 is pulled out from the supply roll 14 around which the hoop material 1 is wound by the intermittent driving of the feed roller 6 and is transported and guided by a transport guide portion 7 including a support roller 16 (clamping roller 16). 3 is intermittently conveyed.

  The cutting device 3 includes a support portion 8 that supports the tip portion of the hoop material 1, and a cutting movable portion 9 that is supported by the support portion 8 and that cuts a feed protruding portion protruding from the support portion 8. The front end portion of the hoop material 1 that is intermittently conveyed by intermittent driving of the feed roller 6 is fed out from the support portion 8 every time it is cut, and the feed protrusion portion from the support portion 8 is sequentially cut by the movement of the cutting movable portion 9. The cut pieces 1 </ b> A are dropped and discharged onto the discharge unit 4 and stacked, and the laminated material 5 is stacked on the discharge unit 4.

  The feed amount of the turning drive source 13 that intermittently drives the feed roller 6 is controlled by the feed roller control unit 10 so that the feed amount of the hoop material 1 is variably controlled and the cutting width of the hoop material 1 is adjusted and controlled. .

  That is, the feed roller control unit 10 controls the feed amount of the hoop material 1 to gradually increase or decrease the cutting width of the hoop material 1 or to combine the increase and decrease with the strip shape on the discharge unit 4. The cut pieces 1A are laminated, and a laminated material 5 shaped into a desired shape such as a trapezoid, a rhombus, or a circle in a side view is laminated.

  For example, in the case of laminating and forming a cylindrical block-shaped laminated material 5 as a whole in a circular shape in a side view, because the present invention is a lamination of plate materials, the expression of a circle does not mean a complete circle, and the bottom This means that the width of the plate or the uppermost plate is not 0 but has a predetermined width and the shape is such that the upper and lower surfaces are chamfered as a whole. Including the shape having the same width laminated portion 5A, it is described as a circle including these, but it may be expressed as a substantially circular shape or a semi-circular shape in order to clarify that these are included. is there.

  In other words, for example, the feed amount of the hoop material 1 is controlled by a program for presetting the feed amount of the hoop material 1 so that the cutting width of the hoop material 1 is gradually increased and further gradually decreased. The laminated material 5 shaped into a substantially semicircular shape in which the side view or the cut surface is shaped into a substantially circular shape or gradually increased or decreased is turned upside down to obtain a substantially circular laminated material 5. The same width laminated portion 5A may be provided in part and may be shaped.

  In other words, the substantially circular laminated material 5 may be laminated at once, but for example, the substantially semicircular laminated material 5 is laminated by controlling the cutting width to gradually increase, and this is reversed. It is also possible to obtain a substantially columnar laminated material 5 that is laminated (by combining the bottom surfaces) and is generally circular in a side view.

  Further, the feed roller 6 of the transport device 2 is provided at a position close to the support portion 8 of the cutting device 3.

  Specifically, the feed roller 6 is disposed on the front side of the cutting device 3 and is disposed at a close position where a feed error due to distortion of the hoop material 1 or deflection due to its own weight falls within an allowable error range.

  As a result, for example, the feed roller 6 is driven by a rotational drive source 13 having a high feed accuracy such as a stepping motor or a servo motor, and the feed amount is controlled based on a preset program. The feed error due to distortion and deflection of the hoop material 1 can be reduced by bringing it as close as possible to the support portion 8 as a cutting position, and material feed with high feed accuracy that has never been achieved can be realized, and this highly precise material feed can be controlled. Each cutting width that is gradually increased, decreased, or partially constant can be finely adjusted with high accuracy, so that the hoop material 1 can be laminated with extremely high dimensional accuracy and shaped into a desired shape while having a simple configuration. A highly accurate laminated material 5 (laminated core) can be obtained.

  That is, the feed projecting portion protruding from the support portion 8 of the hoop material 1 is cut by the simple and inexpensive movement of the cutting movable portion 9, and the influence of the distortion of the hoop material 1 and the deflection due to its own weight is reduced. A feed roller 6 that intermittently conveys the hoop material 1 is disposed at a position close to the cutting position, and this feed roller 6 is driven by a rotational feed source 13 with high feed accuracy such as a stepping motor or a servo motor. Also, when a rotation transmission mechanism is provided, transmission is driven by a belt or gear without backlash, and the feed amount of the hoop material 1 by the feed roller 6 is controlled by a preset program to control the cutting width of the cut piece 1A. By configuring as described above, it is possible to obtain a laminated core made of the laminated material 5 having a high dimensional accuracy with a simple configuration.

  Specific embodiments of the present invention will be described with reference to the drawings.

  In the present embodiment, for example, a cutting device 3 is provided at the transport tip of the transport device 2 that transports the hoop material 1 drawn from a supply roll 14 wound with a silicon steel plate, and the hoop material 1 is cut into strips one after another. The cut piece 1A is dropped and discharged to a discharge portion 4 which is a discharge receiving portion adjacent to the cutting device 3, and a laminated material 5 for producing a laminated core is laminated.

  The transport device 2 includes a feed roller 6 that pulls and feeds the hoop material 1 from the supply roll 14, and a support roller 16 (clamping roller 16) that guides and horizontally transports the hoop material 1 transported by the feed roller 6. ) And the like, and the feed roller 6 is intermittently driven so that the hoop material 1 is intermittently conveyed while being sequentially cut by the cutting device 3.

  In the present embodiment, one of the pair of sandwiching rollers 16 that sandwich the hoop material 1 that is transported horizontally is used as a feed roller 6, and the feed roller 6 is intermittently transported by intermittent rotation driving.

  The cutting device 3 is guided by the feed roller 6 or the holding roller 16 on the front side (upstream side) of the feed roller 6 by the intermittent drive of the feed roller 6 of the transport device 2, and the hoop material is intermittently transported horizontally. 1. A structure comprising a support part 8 for supporting the front end part 1 and a cutting movable part 9 for cutting a feed projecting part horizontally projecting from the end edge part of the support part 8 at the front end part of the hoop material 1 in the conveying direction. By moving the end edge portion of the support portion 8 and the sharp lower edge portion of the cutting movable portion 9 by passing each other, the feed protrusion portion protruding from the support portion 8 at the tip portion of the hoop material 1 is intermittently conveyed one after another. It is set as the structure cut | disconnected to.

  In other words, the cutting movable portion 9 provided so as to be movable in the vertical direction with respect to the support portion 8 is configured to be driven to be lowered by the cutting lifting drive device 17 and cut, and the hoop material intermittently conveyed by the intermittent driving of the feed roller 6. 1 is horizontally fed and projected from the edge of the support portion 8 every time it is cut, and the feed projecting portion from the support portion 8 is sequentially cut by the downward movement of the cutting movable portion 9, and this cutting piece 1A Is dropped and discharged onto the discharge unit 4 and stacked, and the laminated material 5 is automatically stacked on the discharge unit 4.

  The feed amount of the turning drive source 13 that intermittently drives the feed roller 6 is controlled by the feed roller control unit 10 so that the feed amount of the hoop material 1 is variably controlled and the cutting width of the hoop material 1 is adjusted and controlled. The feed roller 6 is arranged on the front side of the cutting device 3 (on the upstream side of conveyance) and at a close position where a feed error due to distortion of the hoop material 1 or deflection due to its own weight falls within an allowable error range. Has been established.

  In other words, the feed roller controller for controlling the cutting amount of the hoop material 1 by variably controlling the feed amount of the hoop material 1 by program-controlling the rotation amount of the rotational drive source 13 that intermittently drives the feed roller 6. 10, the feed roller control unit 10 controls the feed amount of the hoop material 1, and the cutting width of the hoop material 1 is gradually increased or gradually decreased, or the discharge unit 4 is combined with the increase and decrease. The laminated material 5 is formed by laminating strip-shaped cut pieces 1A and shaped into a desired shape such as a trapezoid, a rhombus, or a circle in a side view.

  Specifically, for example, when the cylindrical block-shaped laminated material 5 is formed as a whole as a circular shape in a side view, it does not become a perfect circle because of the lamination of the plate materials. The width of the plate is not zero, but has a predetermined width and a circular shape with the top and bottom chamfered as a whole, and a part having the same width laminated portion 5A in which cut pieces 1A having the same width dimension described later are laminated. It is a shape, and it is configured to stack and form such a substantially cylindrical laminate material 5 having a substantially circular shape when viewed from the side.

  Further, the discharge unit 4 is configured to be movable up and down, and a discharge unit lowering device 15 for controlling the lowering of the discharge unit 4 is provided, so that the stacking height of the laminated material 5 stacked on the discharge unit 4 is increased. It is constituted so that it descends gradually with.

  That is, by providing the discharge unit lowering device 15, it is possible to achieve a moderate drop, to realize a good automatic lamination due to its own weight, and to keep this moderate drop by sequentially descending as the lamination height increases. Thus, rotation and direction disturbance due to a drop impact can be prevented, and neat alignment and lamination can be performed, so that alignment work in the next process is facilitated.

  Further, the cutting movable portion 9 is provided so as to be movable up and down with respect to the support portion 8, and the feed movable portion of the hoop material 1 protruding horizontally from the support portion 8 in the conveying direction by lowering the cutting movable portion 9. When cutting, a pressing portion 11 for pressing the hoop material 1 against the support portion 8 is provided above and below the hoop material 1 so as to be freely contacted and separated.

  Specifically, a plate-like pressing portion 11 is provided above the hoop material 1 so as to be movable up and down, and the pressing portion 11 is moved downward in synchronization with the intermittent driving of the feed roller 6 by the feed roller control portion 10. The hoop material 1 is pressed and held on the plate-like support portion 8 by the pressing portion 11 and cut.

  That is, the feed roller 6 is program-controlled to intermittently convey the hoop material 1 so that it protrudes from the support portion 8 by a desired cutting width. The plate-like pressing part 11 is also moved down immediately before the cutting, and the hoop material 1 is cut to the plate-like support part 8 with the pressing part 11 being cut off. The intermittent conveyance by the feed roller 6 is performed again, so that the dimensional accuracy of the cutting width of the one-layer cut piece 1A is increased, and a laminated material 5 (laminated core) with high dimensional accuracy can be obtained.

  Further, in the present embodiment, a punching device 12 that opens a hole for fixing a large laminated core in the hoop material 1 is provided on the upstream side of conveyance of the feed roller 6.

  Therefore, the holes used for fixing the laminated core can be automatically opened as necessary, and the hole punching device 12 is disposed on the upstream side of the feed roller 6 rather than the feed roller 6 that controls the feed amount. Even when opening, the high dimensional accuracy can be maintained. In addition, a plurality of holes can be provided by the hole punching device 12 at arbitrary positions.

  More specifically, as described above, in this embodiment, the width of the hoop material 1 is paired with the sandwiching roller 16 between the bearing roller 16 (the sandwiching roller 16) for guiding the horizontal conveyance and the support portion 8 of the cutting device 3. The feed roller 6 that is installed in the direction and sandwiches the hoop material 1 and horizontally transports the hoop material 1 by rotation is disposed, and the punching hole formed of a die punch and a die is provided on the front side of the transport if necessary. A device 12 is provided.

  Specifically, in this embodiment, a device for feeding a hoop material 1 (silicon steel plate) having a band width of 100 mm and a plate thickness of 0.1 mm is used, but in this embodiment, within a range of 30 mm to 300 mm from the support portion 8. The feed roller 6 is disposed so as to be close to each other.

  Although there is a limit in proximity in terms of mechanical design, at least in the case of this apparatus, the feed roller 6 is disposed at a position of 120 mm so as to be within 300 mm and is brought close to the support portion 8 of the cutting apparatus 3.

  Furthermore, the feed roller 6 is intermittently rotated by a rotation drive source 13 having a high rotation accuracy using a stepping motor or a servo motor, so that the feed amount variation of the hoop material 1 is within 0.02 mm. It was confirmed that accuracy could be realized.

  That is, by bringing the feed roller 6 close in this way, the influence of distortion of the hoop material 1 is reduced, and the rotation drive source 13 with high rotation accuracy, that is, high feed accuracy is adopted, and this is program-controlled. Thus, the feed amount control within the error range within 0.02 mm can be realized. Therefore, the cutting width of the cut piece 1A can be controlled within the error range, and the laminated material 5 with high dimensional accuracy can be obtained.

  More specifically, in this embodiment, as described above, 252 cut pieces 1A obtained by cutting the hoop material 1 having a band width (depth width of the laminated material 5) of 100 mm and a plate thickness of 0.1 mm are laminated and laminated. With a height of 25.2 mm, the cutting width of the lowermost plate and the uppermost plate of the cut piece 1A is 6.4 mm, the cutting width of the largest middle part is 25.3 mm, and the maximum width of 25.3 is laminated on 60 sheets The same width laminated portion 5A is formed in the middle portion, and a cylindrical structure of approximately φ26 is formed by cutting the laminated piece 1A from the maximum width so that the cutting width gradually increases or decreases.

  In addition, if there is a stack height measurement unit that detects the stack height, and there is an error in the stack height due to variations in plate thickness, sagging or burrs at the cutting edge, for example, this is expected to be the same width. The number of stacked layers in the stacked portion 5A is adjusted or set, or is removed and adjusted sequentially.

  That is, in the present embodiment, in order to finely adjust the stacking height of the laminate 5 in this manner, the laminate 5 is controlled by controlling the cut pieces 1A having a constant width without increasing or decreasing the feed amount of the feed roller 6. The feed roller control unit 10 controls so as to have the same width laminated portion 5A in a part of, for example, when the laminated material 5 is laminated in this way, the number of the same width laminated portion 5A is adjusted and controlled. Alternatively, the cut height 1A of the laminated portion 5A having the same width formed on the discharge portion 4 is removed or added so that the laminated height of the laminated material 5 is set to a predetermined value.

  Further, when the laminated material 5 is manufactured, one laminated portion of the laminated material 5 in which the strip-shaped cut pieces 1A are laminated and formed on the discharge portion 4 is reversed with respect to the other laminated portions and laminated. The laminated material 5 has portions having different directions.

  That is, a part of the laminated material 5 that has been laminated and formed may be bundled as compared with the other part, turned upside down, reassembled, laminated and aligned, and sent to the next process. By controlling the feed amount of the roller 6 to gradually increase, a substantially semi-circular laminated material 5 is formed in sequence, and the two laminated materials 5 are turned upside down so that the substantially circular laminated material 5 is aligned. Thus, the upper half and the lower half are made to have a substantially circular laminated material 5 that is laminated so that the front and back directions are different from each other.

  By doing this, the cut pieces 1A having the same width can be laminated, so that even if the cut edge has a sag or burr, it can be laminated neatly without misalignment, the management of the stacking height can be improved, and the dimensional accuracy can be further improved. A high laminated core can be obtained.

  The present invention is not limited to the present embodiment, and the specific configuration of each component can be designed as appropriate.

DESCRIPTION OF SYMBOLS 1 Hoop material 1A Cutting piece 2 Conveying device 3 Cutting device 4 Discharge part 5 Laminated material 5A Same width laminated part 6 Feeding roller 8 Bearing part 9 Cutting movable part
10 Feed roller controller
11 Holding part
12 Drilling device
13 Rotation drive source
15 Ejector lowering device

Claims (6)

  A cutting device is provided in the conveying device that conveys the hoop material, and the hoop material is cut into strips one after another, and the cut pieces are discharged to the discharge portion in a laminated state to produce a laminated material for producing a laminated core. An apparatus for manufacturing a laminated material for producing a laminated core, wherein the conveying device comprises a feed roller that feeds and drives the supplied hoop material, and the cutting device intermittently drives the feeding roller of the conveying device A support portion for supporting the hoop material that is intermittently conveyed by the head, and a cutting movable portion that cuts a feed protrusion portion that protrudes in the transport direction from the support portion of the tip portion of the hoop material, and the feed roller The feed roller is disposed on the front side of the cutting device and in a close position where a feed error due to distortion or dead weight of the hoop material is within an allowable error range, and the feed roller is intermittently driven. A feed roller control unit is provided for controlling the rotation amount of the drive source to variably control the feed amount of the hoop material to control the cutting width of the hoop material. The feed roller control unit controls the feed amount of the hoop material. The hoop material cutting width is gradually increased, gradually decreased, or a combination of this increase and decrease, and the strip-shaped cut pieces are stacked on the discharge part to form a desired shape such as a trapezoid, a rhombus, a circle, and a semicircle in a side view. A laminated material manufacturing apparatus for producing a laminated core, characterized in that the laminated material shaped into a layer is formed to be laminated.   The discharge part is configured to be movable up and down, and a discharge part lowering device is provided for controlling the discharge part to be lowered. The operation of the cutting device causes the strip-shaped cut pieces to fall and be discharged one after another on the discharge part. The laminated material manufacturing apparatus for manufacturing a laminated core according to claim 1, wherein the laminated material is configured to descend as the laminated height of the laminated material to be laminated is increased.   When the cutting movable part is provided so as to be movable up and down with respect to the support part, and when the cutting movable part is lowered to cut the feed projecting part of the hoop material horizontally projecting from the support part, a hoop material is used. The laminated material manufacturing apparatus for manufacturing a laminated core according to any one of claims 1 and 2, characterized in that a pressing portion that presses against the support portion is provided above and below the hoop material.   The punching device which opens a hole in the predetermined position of the hoop material by controlling the amount of feed by the feed roller is provided on the front side of the transport of the feed roller. The laminated material manufacturing apparatus for laminated core manufacture of description.   A laminated material having a substantially circular side view is manufactured as the desired shape by controlling the feed amount of the feed roller to gradually increase and decrease, or as a desired shape by controlling to gradually increase or decrease. Produces a substantially semicircular laminate when viewed from the side, or produces a substantially circular laminate by aligning one of the substantially semicircular laminates upside down, and for fine adjustment of the laminate height of the laminate The feed roller control unit is configured such that a cut piece having a constant width is laminated without increasing or decreasing the feed amount of the feed roller so that a part of the laminated material has the same width laminated portion. The laminated material manufacturing apparatus for manufacturing a laminated core according to any one of claims 1 to 4.   When manufacturing the said laminated material using the laminated material manufacturing apparatus for laminated core manufacture of any one of the said Claims 1-5, the laminated material by which the strip-shaped cut piece was laminated | stacked and formed in the said discharge part. A method for producing a laminated material for producing a laminated core, comprising: laminating one laminated portion with respect to another laminated portion so as to be laminated and having a portion having different front and back directions.

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