Motor core paper inserting machine

Abstract

The application discloses a motor core paper inserting machine and belongs to the technical field of motor production. The motor core paper inserting machine comprises a workbench, a swing arm rotationally connected with the workbench, two temporary storage parts arranged on the swing arm and a paper inserting part arranged on the workbench. The temporary storage part comprises a receiving disc rotationally connected with the swing arm and a material moving pipe slidingly connected with the receiving disc. The material moving pipe is formed with a temporary storage groove. The receiving disc is formed with a limiting column. The swing arm rotationally drives the material moving pipe to slide. When the receiving disc rotates to a first position, the material moving pipe slides relative to the receiving disc, and the insulating paper in the temporary storage groove enters into a paper inserting groove. When the receiving disc rotates to a second position, the iron core filled with the insulating paper is separated from the receiving disc, and the paper inserting part inserts the insulating paper into the temporary storage groove. The motor core paper inserting machine can automatically insert the insulating paper into the iron core, does not need to adjust the angular position when the iron core is placed and shortens the processing period to a certain extent.

Description

Technical Field

[0001] This invention belongs to the field of motor manufacturing technology, and more specifically, relates to a motor core paper insertion machine. Background Technology

[0002] Chinese patent document CN115360876A discloses a fully automatic paper insertion machine for motor cores, belonging to the field of mechanical technology. It solves the problems of existing technologies. This fully automatic paper insertion machine for motor cores includes a control system, a worktable, a paper insertion mechanism, a material placement mechanism, and a conveying mechanism. Both the paper insertion mechanism and the conveying mechanism are located on the worktable. The conveying mechanism consists of a moving unit and a robotic arm unit. The material placement mechanism consists of a circumferentially rotatable rotating disk, positioning shafts located on the rotating disk for positioning several stator cores, an automatic loading and unloading device for the corresponding stator cores to move up and down, and a drive unit located at the bottom of the rotating disk for driving its circumferential rotation. The rotating disk has several placement stations for stator core installation, and the positioning shafts are located in corresponding placement stations. This invention has the advantages of high automation, high efficiency, and low labor costs.

[0003] Chinese patent document CN114244049B discloses an automatic paper insertion machine for motor rotor insulation paper, belonging to the field of motor rotor manufacturing technology. It includes a processing base connected to a central column, on which a staged feeding section and a transfer section are sequentially arranged. The transfer section simulates the insertion of insulation paper into the slots, and the staged feeding section synchronously inserts the insulation paper from the transfer section onto the rotor. The transfer section includes molds simulating the distribution and shape of the rotor slots. Several elastic auxiliary components are connected between adjacent molds, with both ends of the elastic auxiliary components fixedly connected to the corresponding molds. This automatic paper insertion machine for motor rotor insulation paper optimizes the rotor paper insertion process, effectively improving its efficiency. Simultaneously, by changing the state of the insulation paper, it reduces the adverse effects of the folded shape accuracy and insertion position accuracy on the paper insertion process, ensuring normal and stable paper insertion and further improving the working efficiency of rotor paper insertion.

[0004] In actual production, the paper insertion mechanism is not working when the motor core enters and leaves the paper insertion station, resulting in low production efficiency. Therefore, to improve the paper insertion efficiency, the paper insertion mechanism should be kept in the working state as much as possible. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide a motor core paper insertion machine, which can realize the automated insertion of insulating paper into the motor core in a high-efficiency and fast manner.

[0006] The present invention provides a paper inserter for a motor core, comprising a worktable, a swing arm rotatably connected to the worktable in the middle, two temporary storage portions disposed at both ends of the swing arm, and a paper inserting portion disposed on the worktable for inserting insulating paper into the temporary storage portions; the temporary storage portion includes a receiving plate rotatably connected to the swing arm and capable of inserting into the inner ring of the core, and a transfer tube slidably connected to the receiving plate.

[0007] The transfer tube is formed with multiple temporary storage slots that can be sequentially connected to each paper insertion slot on the iron core; the receiving plate is formed with multiple limiting posts that are sequentially slidably connected to each of the temporary storage slots; the temporary storage slots, the limiting posts and the paper insertion slots have the same cross-sectional shape; the swing arm rotates to drive the transfer tube to slide.

[0008] When the receiving plate rotates to the first position, the transfer tube is located at the extreme position away from the receiving plate, and the paper insertion slots on the iron core are aligned with the temporary storage slots in sequence. Then, the transfer tube is driven to slide relative to the receiving plate to the extreme position where they are close to each other. The insulating paper in the temporary storage slot enters the paper insertion slot, and the receiving plate is inserted into the inner ring of the iron core.

[0009] When the receiving plate rotates to the second position, the transfer tube slides relative to the receiving plate to the extreme position where they are far apart, the iron core filled with insulating paper disengages from the receiving plate, and at the same time the paper insertion part inserts insulating paper into each of the temporary storage slots in sequence.

[0010] As a further improvement of the present invention, the temporary storage section further includes a push rod slidably connected to the receiving plate, a switching plate slidably connected to the swing arm along the length direction of the swing arm and drivenly connected to the push rod, and an external push spring disposed between the push rod and the receiving plate for pushing the transfer tube away from the receiving plate by the push rod.

[0011] The workbench is provided with a disc coaxially arranged with the swing arm rotation axis; the outer wall of the disc is formed with a combined arc surface arranged along the circumference, which allows the push rod to slide away from the material transfer tube.

[0012] As a further improvement of the present invention, the combined arc surface includes a small circumferential surface formed on the disk, a large circumferential surface formed on the disk, and a guide arc surface arranged along an involute with its two ends tangent to the small circumferential surface and the large circumferential surface, respectively; the radius of the large circumferential surface is greater than the radius of the small circumferential surface; and a guide post is formed on the switching plate that abuts against the combined arc surface.

[0013] When the guide post abuts against the small circumferential surface, the push rod pushes the transfer tube to move to the extreme position away from the receiving plate.

[0014] When the guide post abuts against the large circumferential surface, the push rod cannot contact the transfer tube, the external push spring is compressed and stored, and the transfer tube can move to the extreme position close to the receiving plate.

[0015] As a further improvement of the present invention, the outer wall of the push rod is formed with an extension column extending outward; the switching plate is formed with an inclined inner pull groove that is slidably connected to the extension column.

[0016] As a further improvement of the present invention, a transfer tray is slidably connected to the worktable in the left-right direction; a fixed tube for moving the iron core is rotatably connected to the transfer tray; a moving ring for driving the fixed tube to slide synchronously is slidably connected to the transfer tray in the front-back direction; the transfer tray has two connecting rod sections; each connecting rod section consists of two connecting rods that are rotatably connected at one end to each other; the other end of one of the connecting rods in the connecting rod section is rotatably connected to the transfer tray, and the other end of the other connecting rod is rotatably connected to the moving ring.

[0017] The worktable is slidably connected to a pusher that can drive the connecting rod to rotate and the transfer tray to slide in the left and right directions.

[0018] As a further improvement of the present invention, an eccentric column is formed on the connecting rod, the axis of which is parallel to and does not coincide with the rotation axis of the connecting rod; a plurality of push grooves are formed on the push frame, each for driving the corresponding eccentric column to slide; a centering spring is respectively provided between the two ends of the push groove and the transfer plate.

[0019] In its natural state, the two centering springs keep the push groove in the middle of the transfer tray, and the sliding of the push frame drives the transfer tray to slide synchronously.

[0020] When the transfer tray moves to one extreme position, the transfer tray cannot slide. The sliding of the pusher will cause the pusher to slide relative to the transfer tray, and the corresponding centering spring will be compressed. The connecting rod will rotate to make the fixed tube slide relative to the transfer tray.

[0021] As a further improvement of the present invention, an air cavity is formed at one end of the fixed tube facing the iron core; a plurality of internal pressure columns that can abut against the inner ring of the iron core are sealed and slidably connected inside the air cavity; a piston cylinder that communicates with the air cavity is fixedly connected to the worktable; a piston is sealed and slidably connected inside the piston cylinder; and a transmission gear that can drive the piston and the pusher to slide is rotatably connected to the worktable.

[0022] As a further improvement of the present invention, a rack is formed at one end of the piston facing the transmission gear, which can be connected to the transmission gear in a transmission manner; a tension spring is provided between the piston and the piston cylinder for sliding the rack toward the transmission gear.

[0023] The pusher has a lead screw formed at one end facing the transmission gear; a lead screw nut is rotatably connected to the worktable and is driven by the lead screw; the transmission gear can drive the lead screw nut to rotate.

[0024] As a further improvement of the present invention, a driven block is formed at one end of the lead screw nut facing the transmission gear; a driving block capable of driving the driven block to rotate is formed at one end of the transmission gear facing the lead screw nut.

[0025] As a further improvement of the present invention, the end of the transfer tray facing the iron core is formed with a plurality of directional inclined surfaces that can drive the paper insertion slot to rotate, thereby causing the iron core to rotate to a fixed angle.

[0026] Compared with the prior art, the beneficial effects of the present invention are as follows: In the initial state, the transfer tray is located at the right extreme position, the driving block and the driven block abut against each other, the fixed tube is located at the extreme position away from the transfer tray, and the centering spring on the right is compressed and stored; the transfer tube on the left is located at the extreme position close to the receiving plate, and the transfer tube on the right is located at the extreme position away from the receiving plate.

[0027] When using this product, the user should place the iron core with the end face facing forward and place the iron cores vertically on the first conveyor belt in sequence. The outer circumference of the iron core should abut against the upper end face of the first conveyor belt. The first conveyor belt will transport the iron cores to the conveying slope. Under the action of gravity, the iron cores will roll along the conveying slope to the lower limit position. Subsequent iron cores will roll along the conveying slope in sequence until they abut against the previous iron core.

[0028] When the switch is turned on, the controller activates the material transfer motor, causing the motor gear to rotate forward for a certain period. This forward rotation drives the transmission gear to rotate forward, which in turn drives the drive block to rotate forward, preventing it from contacting the driven block and causing the lead screw nut to stop rotating. The forward rotation of the transmission gear causes the rack to slide downward until it no longer contacts the transmission gear. The tension spring stretches and stores its force, allowing the rack to reconnect with the transmission gear. The downward sliding of the rack corresponds to the downward sliding of the piston, increasing the volume inside the piston cylinder and drawing gas from the air chamber, thus reducing the pressure inside. The inner pressure column, pushed by external pressure, slides to its inner limit position, preventing it from contacting the inner ring of the iron core. Continued forward rotation of the transmission gear causes the drive block to rotate until it contacts the other side of the driven block, further driving the driven block to rotate. This, in turn, causes the lead screw nut to rotate forward, causing the lead screw to slide to the left, which in turn causes the pusher to slide to the left. The sliding of the pusher causes the right-side centering spring to gradually return to its natural length. The pusher slides to the left relative to the transfer tray, while the transfer tray remains stationary. The sliding of the pusher causes the pusher groove to slide, which in turn causes the eccentrically positioned eccentric column to rotate, thereby causing the two connecting rods to rotate in a direction away from each other. The rotation of the connecting rods causes the moving ring to slide in the back-and-forth direction. The sliding of the moving ring causes the fixed tube to slide towards the transfer tray to its limit position, where the fixed tube must not contact the iron core.

[0029] Next, the pusher continues to slide, causing the transfer plate to slide to its leftmost limit position. The transfer plate is directly opposite the iron core at the bottom of the conveying slope. The pusher continues to slide, causing it to slide to the left relative to the transfer plate. The centering spring on the left side is compressed, and at the same time, the pusher slides, causing the two connecting rods to rotate in opposite directions. After the motor gear rotates forward for a certain period of time, the fixed tube slides away from the transfer plate to its limit position and is inserted into the iron core directly opposite it.

[0030] During this process, the controller synchronously controls the paper insertion unit to insert paper into the transfer tube located on the right. The paper insertion unit cuts and creases the insulating paper in sequence, and then pushes it into the corresponding temporary storage slot. At the same time, the intermittent motor installed on the swing arm intermittently drives the transfer tube to rotate, so that each temporary storage slot is filled with insulating paper.

[0031] Then, the controller controls the motor gear to rotate in the opposite direction for a certain period of time. This reverse rotation of the motor gear drives the transmission gear to rotate in the opposite direction, causing the drive block to no longer abut against the driven block. Simultaneously, the reverse rotation of the transmission gear causes the rack to slide upwards until it is no longer connected to the transmission gear. The tension spring is compressed and stores energy, and its elasticity allows the rack to slide back to engage with the transmission gear. Gas from the piston cylinder enters the gas chamber, and the inner pressure column slides outwards to its outer limit position, pressing against the inner ring of the iron core, thus fixing the iron core relative to the fixed tube. Continued reverse rotation of the transmission gear causes the drive block to abut against the driven block, further driving the lead screw nut to rotate in the opposite direction. This rotation causes the pusher to slide to the right. The pusher's rightward sliding causes the two connecting rods to rotate, moving the fixed tube to its limit position near the transfer tray. The iron core, now fixed relative to the fixed tube, no longer contacts adjacent iron cores, and the iron core on the conveying ramp continues to roll downwards to its lower limit position. During this process, the fixed tube slides towards the transfer tray, causing the paper insertion slot on the iron core to abut against the directional ramp, thus driving the iron core to rotate to a specified angle.

[0032] Next, the motor gear continues to rotate in the opposite direction, moving the transfer tray to its right limit position. During this process, the controller controls the rotary motor to rotate the swing arm counterclockwise by half a turn. The transfer tube filled with insulating paper, located on the right, rotates to the left, aligning with the transfer tray. Simultaneously, the paper insertion slot aligns with the temporary storage slot. The rotation of the insulating paper-filled transfer tube simultaneously drives the corresponding guide post on the right to slide. The guide post slides along the small circumferential surface, the guide arc surface, and the large circumferential surface, causing the guide post to slide along the swing arm, i.e., the inner pull inclined groove slides. The sliding of the inner pull inclined groove drives the extension post to slide, which in turn causes the push rod to slide until it no longer contacts the corresponding transfer tube, and the outer push spring is compressed and stores force.

[0033] The motor gear continues to rotate in the reverse direction, causing the pusher to slide relative to the transfer tray. This compresses the centering spring on the right side, and the sliding of the pusher causes the two connecting rods to rotate in opposite directions. The fixed tube slides away from the transfer tray, meaning the iron core slides away from the transfer tray. The sliding of the iron core will abut against the transfer tube and drive the transfer tube to slide synchronously. The transfer tube slides relative to the receiving tray, and the limiting post restricts the sliding of the insulating paper, thus allowing the insulating paper in the temporary storage slot to enter the paper insertion slot. The limiting post enters the inner ring of the iron core. After the motor gear finishes rotating in the reverse direction, the fixed tube moves to its extreme position away from the transfer tray, and the transfer tube moves to its extreme position close to the receiving tray. This process repeats.

[0034] As the swing arm rotates counterclockwise half a turn again, when the guide post on the left moves away from the large circumference, the push rod slides under the elastic force of the external push spring. The sliding push rod will abut against the transfer tube and simultaneously drive the transfer tube to slide away from the receiving plate to its limit position, at which point the guide post moves to abut against the small circumference. The sliding of the transfer tube causes the corresponding iron core filled with insulating paper to separate from the inner insertion tube. The iron core moves to the second conveyor belt and is then transported to the next station. After the swing arm rotates counterclockwise half a turn, the transfer tube on the left rotates to the right, directly opposite the paper insertion section.

[0035] This invention features a transmission gear. When the transmission gear rotates, it first drives the piston to slide, which in turn causes the inner pressure column to slide, fixing or separating the fixed tube from the iron core. Subsequently, the rotation of the transmission gear drives the lead screw nut to rotate, causing the transfer disc to rotate, which in turn moves the iron core to insert paper. This invention does not add any new motion mechanism or operating steps; it only has one motion mechanism, making it simple and convenient to use.

[0036] This invention features a pusher frame. When the pusher frame slides, it first moves the transfer tray to its limit position, aligning it with the iron core on the conveying ramp or with the transfer tube filled with insulating paper. Then, the pusher frame continues to move, compressing the centering spring and causing it to slide relative to the transfer tray. This, in turn, rotates the connecting rod, causing the fixed tube to slide away from the transfer tray and insert into the iron core, or the iron core into the receiving plate. No new motion mechanisms or operating steps are added; only one motion mechanism is provided, making it simple and convenient to use. Furthermore, the sliding of the fixed tube relative to the transfer tray allows the iron core, which is fixed relative to the fixed tube, to rotate to a designated position under the drive of the directional ramp, facilitating subsequent paper insertion. No manual adjustment of the iron core position is required, reducing manual intervention and thus improving production efficiency.

[0037] This invention features a switching plate. As the swing arm rotates, when the switching plate moves away from the large circumferential surface, the push rod slides under the elastic force of the external push spring, pushing the transfer tube to slide away from the receiving plate. This allows the iron core filled with insulating paper to fall onto the second conveyor belt. Simultaneously, when the switching plate slides along the guide arc surface to abut against the large circumferential surface, the push rod slides until it no longer contacts the transfer tube. The transfer tube no longer contacts the push rod and can slide closer to the receiving plate, allowing the insulating paper inside the transfer tube to enter the paper insertion slot. This eliminates the need for a separate moving mechanism, simplifying the motion mechanism and reducing production costs.

[0038] This invention can automatically insert insulating paper into the iron core, and can automatically feed and unload materials, reducing manual intervention and facilitating assembly line operation. When placing the iron core, there is no need to adjust the angle and position, as the position of the paper insertion slot can be automatically rotated and adjusted, reducing manual workload and improving production efficiency. The processes of insulating paper cutting and creasing are always in operation, and the movement, feeding, and unloading of the iron core are carried out simultaneously, which shortens the processing cycle and improves production efficiency to a certain extent. Attached Figure Description

[0039] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a cross-sectional structural diagram of the present invention; Figure 3 This is an exploded structural diagram of the present invention; Figure 4 This is a schematic diagram of the structure of the worktable of the present invention. Figure 5 This is a schematic diagram of the receiving plate of the present invention; Figure 6 For the present invention Figure 3 A schematic diagram of the exploded structure of part A in the middle; Figure 7 This is a schematic diagram of the structure of the present invention when the insulating paper is inserted; Figure 8 This is a schematic diagram of the structure after the paper insertion is completed according to the present invention.

[0040] Explanation of the labels in the diagram: 10. Workbench; 101. Large circumferential surface; 102. Small circumferential surface; 103. Guide arc surface; 104. Conveying inclined surface; 11. First conveyor belt; 12. Second conveyor belt; 13. Iron core; 131. Paper insertion slot; 14. Insulating paper; 20. Paper insertion part; 21. Paper roll; 31. Swing arm; 32. Rotary motor; 33. Receiving plate; 331. Inner insertion tube; 332. Limiting post; 34. Transfer tube; 341. Temporary storage slot; 35. Push rod; 351. Extension post; 36. Outer push spring; 37. Switching plate; 371. Inner pull inclined groove; 372. Guide... 41. Column; 42. Transfer tray; 43. Orientation slope; 44. Fixed pipe; 45. Air chamber; 46. Connecting pipe; 47. Concave ring; 48. Inner pressure column; 49. Moving ring; 40. Connecting rod; 41. Eccentric column; 42. First air pipe; 43. Centering spring; 54. Push frame; 55. Push groove; 56. Lead screw; 57. Lead screw nut; 58. Driven block; 59. Transmission gear; 50. Drive block; 51. Transfer motor; 52. Motor gear; 53. Piston cylinder; 54. Second air pipe; 55. Piston; 56. Rack; 57. Tension spring. Detailed Implementation

[0041] Specific Implementation Example 1: Please refer to... Figure 1-8 A paper inserter for an electric motor core includes a worktable 10, a swing arm 31 with a rotating shaft rotatably connected to the worktable 10 in the middle and arranged in the front-rear direction, two temporary storage parts arranged at both ends of the swing arm 31, and a paper inserting part 20 arranged on the worktable 10 for inserting insulating paper into the temporary storage parts; the temporary storage part includes a receiving plate 33 rotatably connected to the swing arm 31 with a rotating shaft arranged in the front-rear direction and capable of inserting into the inner ring of the core, and a transfer tube 34 slidably connected to the receiving plate 33 in the front-rear direction; a rotary motor 32 is fixedly connected to the worktable 10 and drivenly connected to the swing arm 31; an intermittent motor for driving the receiving plate 33 to rotate is fixedly connected to the swing arm 31.

[0042] Multiple paper insertion slots 131 are evenly arranged around the outer periphery of the iron core; an inner ring is coaxially arranged through the iron core in the middle of the iron core; a paper roll 21 for supplying insulating paper to the paper insertion part 20 is rotatably connected to the worktable 10; the paper insertion part 20 can perform operations such as cutting, creasing, pushing out and inserting the insulating paper.

[0043] The outer wall of the transfer tube 34 is formed with a plurality of temporary storage slots 341 that can be sequentially connected to each paper insertion slot on the iron core; the receiving plate 33 is formed with a plurality of limiting posts 332 that are sequentially slidably connected to each of the temporary storage slots 341; the temporary storage slots 341, the limiting posts 332 and the paper insertion slots have the same cross-sectional shape; the swing arm 31 rotates to drive the transfer tube 34 to slide; the receiving plate 33 has an inner insertion tube 331 formed at the center of one end facing the iron core, which can be inserted into the inner ring of the iron core; the length of the inner insertion tube 331 is greater than the length of the limiting post 332.

[0044] When the receiving plate 33 rotates to the first position, the transfer tube 34 is located at the extreme position away from the receiving plate 33, and each of the temporary storage slots 341 is filled with insulating paper. The paper insertion slots on the iron core are aligned with the temporary storage slots 341 in sequence, which in turn drives the transfer tube 34 to slide relative to the receiving plate 33 to the extreme position where they are close to each other. The insulating paper in the temporary storage slot 341 enters the paper insertion slot, and the inner insertion tube 331 of the receiving plate 33 is inserted into the inner ring of the iron core.

[0045] When the receiving plate 33 rotates to the second position, the transfer tube 34 slides relative to the receiving plate 33 to the extreme position where they are far apart, and the iron core filled with insulating paper disengages from the receiving plate 33. At the same time, the paper insertion part 20 inserts insulating paper into each of the temporary storage slots 341 in sequence.

[0046] A second conveyor belt 12 is provided on the workbench 10 below the receiving plate 33; a plurality of spacers are provided on the outer wall of the conveyor belt 12; the outer wall of the iron core abuts against two adjacent spacers, so that the end face of the iron core can be kept facing the front-back direction.

[0047] The temporary storage section also includes a push rod 35 slidably connected to the receiving plate 33 in the front-back direction, a switching plate 37 slidably connected to the swing arm 31 in the length direction of the swing arm 31 and drivenly connected to the push rod 35, and an outward push spring 36 disposed between the push rod 35 and the receiving plate 33 for pushing the push rod 35 away from the receiving plate 33 to push the transfer tube 34.

[0048] The workbench 10 is provided with a disc coaxially arranged with the rotation axis of the swing arm 31; the outer wall of the disc is formed with a combined arc surface arranged along the circumference, which allows the push rod 35 to slide away from the transfer tube 34.

[0049] The combined arc surface includes a small circumferential surface 102 formed on the disk, a large circumferential surface 101 formed on the disk, and a guide arc surface 103 arranged along an involute with its two ends tangent to the small circumferential surface 102 and the large circumferential surface 101, respectively; the radius of the large circumferential surface 101 is larger than the radius of the small circumferential surface 102; the switching plate 37 has a guide post 372 formed on it that abuts against the combined arc surface.

[0050] When the guide post 372 abuts against the small circumferential surface 102, the push rod 35 pushes the transfer tube 34 to move to the extreme position away from the receiving plate 33.

[0051] When the guide post 372 abuts against the large circumferential surface 101, the push rod 35 cannot contact the transfer tube 34, the external push spring 36 is compressed and stored, and the transfer tube 34 can move to the extreme position close to the receiving plate 33.

[0052] The outer wall of the push rod 35 is formed with two symmetrically arranged outwardly extending extension columns 351; the switching plate 37 is formed with two inclined inner pull grooves 371 that are slidably connected to the extension columns 351.

[0053] A transfer tray 41 is slidably connected to the workbench 10 in the left-right direction; a fixed tube 42 for moving the iron core is rotatably connected to the transfer tray 41; a moving ring 44 for driving the fixed tube 42 to slide synchronously is slidably connected to the transfer tray 41 in the front-back direction; an inner concave ring 423 is formed on the outer wall of the fixed tube 42 and is rotatably connected to the moving ring 44; two connecting rods are respectively arranged on the transfer tray 41 on the upper and lower sides of the fixed tube 42; the connecting rods are composed of two connecting rods 45 that are rotatably connected to each other at one end; the other end of one of the connecting rods 45 is rotatably connected to the transfer tray 41, and the other end of the other connecting rod 45 is rotatably connected to the moving ring 44.

[0054] The workbench 10 is slidably connected to a pusher 51 along the left-right direction, which can drive the connecting rod 45 to rotate and the transfer plate 41 to slide.

[0055] The connecting rod 45 has an eccentric column 451 whose axis is parallel to and does not coincide with the rotation axis of the connecting rod 45; the pusher 51 has a plurality of push grooves 511 for driving the corresponding eccentric column 451 to slide; a centering spring 47 is provided between the two ends of the push groove 511 and the transfer plate 41.

[0056] In its natural state, the two centering springs 47 keep the push groove 511 in the middle of the transfer tray 41, and the push frame 51 slides to drive the transfer tray 41 to slide synchronously.

[0057] When the transfer tray 41 moves to one extreme position, the transfer tray 41 cannot slide. The sliding of the pusher 51 will cause the pusher 51 to slide relative to the transfer tray 41. The corresponding centering spring 47 is compressed, the push groove 511 drives the eccentric column 451 to rotate, and the connecting rod 45 rotates to make the fixed tube 42 slide relative to the transfer tray 41.

[0058] When the transfer tray 41 is at its right limit position, the transfer tray 41 is directly opposite the receiving tray 33 located on the left; the workbench 10 is formed with an inclined conveying slope 104; the iron core on the conveying slope 104 slides downward under the action of gravity; when the transfer tray 41 is at its left limit position, the transfer tray 41 is directly opposite the lowermost iron core on the conveying slope 104.

[0059] The workbench 10 is provided with a first conveyor belt 11 for supplying iron cores to the material conveying inclined surface 104; the outer wall of the first conveyor belt 11 is provided with a plurality of spacers that are equally spaced; the outer wall of the iron core abuts against two adjacent spacers, so that the iron core can keep its end face facing the front-back direction.

[0060] The fixed tube 42 has an air cavity 421 formed at one end facing the iron core; multiple inner pressure columns 43 that can abut against the inner ring of the iron core are radially sealed and slidably connected inside the air cavity 421; a piston cylinder 55 that communicates with the air cavity 421 is fixedly connected to the worktable 10; a piston 56 is sealed and slidably connected inside the piston cylinder 55; and a transmission gear 53 that can drive the piston 56 and the pusher 51 to slide are rotatably connected to the worktable 10 respectively.

[0061] The outer wall of the fixed tube 42 is formed with a plurality of connecting tubes 422 that communicate with the air chamber 421 and are respectively sealed and slidably connected to the corresponding inner pressure column 43; a first air pipe 46 that communicates with the inside of the air chamber 421 is fixedly connected to the air chamber 421; a second air pipe 551 that communicates with the inside of the piston cylinder 55 is fixedly connected to the outer wall of the piston cylinder 55; the second air pipe 551 and the first air pipe 46 are connected by a flexible tube.

[0062] The piston 56 has a rack 561 formed at one end facing the transmission gear 53, which can be connected to the transmission gear 53 for transmission; a tension spring 57 is provided between the piston 56 and the piston cylinder 55 for sliding the rack 561 toward the transmission gear 53.

[0063] The pusher 51 has a lead screw 512 coaxially arranged with the transmission gear 53 at one end facing the transmission gear 53; the worktable 10 is rotatably connected to a lead screw nut 52 coaxially arranged with the transmission gear 53 and connected to the lead screw 512; the transmission gear 53 can drive the lead screw nut 52 to rotate.

[0064] The lead screw nut 52 has a driven block 521 formed at one end facing the transmission gear 53; the transmission gear 53 has a driving block 531 formed at one end facing the lead screw nut 52, which can drive the driven block 521 to rotate.

[0065] A material transfer motor 54 is fixedly connected to the workbench 10; a motor gear 541, which is connected to the transmission gear 53, is fixedly connected to the output shaft of the material transfer motor 54.

[0066] The transfer tray 41 has multiple directional inclined surfaces 411 formed at the end facing the iron core, which can drive the paper insertion slot to rotate and thus rotate the iron core to a fixed angle.

[0067] A controller is fixedly connected to the workbench; the rotary motor 32, the material transfer motor 54, the intermittent motor, the paper insertion part 20, the first conveyor belt, and the second conveyor belt are electrically connected to the controller.

[0068] In the initial state, the transfer tray 41 is located at the right limit position, the drive block 531 and the driven block 521 are in contact, the fixed tube 42 is located at the limit position away from the transfer tray 41, and the centering spring 47 on the right is compressed and stored; the transfer tube 34 on the left is located at the limit position close to the receiving plate 33, and the transfer tube 34 on the right is located at the limit position away from the receiving plate 33.

[0069] When using this product, the user should place the iron core with the end face facing forward and place the iron cores vertically on the first conveyor belt 11 in sequence. The outer circumference of the iron core should abut against the upper end face of the first conveyor belt 11. The first conveyor belt 11 will transport the iron cores to the conveying inclined surface 104. Under the action of gravity, the iron core 13 will roll along the conveying inclined surface 104 to the lower limit position. Subsequent iron cores will roll along the conveying inclined surface 104 in sequence until they abut against the previous iron core.

[0070] When the switch is turned on, the controller controls the transfer motor 54 to operate, causing the motor gear 541 to rotate forward for a certain period of time. The forward rotation of the motor gear 541 drives the transmission gear 53 to rotate forward, which in turn drives the drive block 531 to rotate forward, so that the drive block 531 no longer abuts against the driven block 521, and the lead screw nut 52 does not rotate. The forward rotation of the transmission gear 53 causes the rack 561 to slide downward until it is no longer in contact with the transmission gear 53. The tension spring 57 is stretched and stores force, and the elastic force of the tension spring 57 enables the rack 561 to reconnect with the transmission gear 53. The downward sliding of the rack 561 means that the piston 56 slides downward, which in turn increases the volume inside the piston cylinder 55, drawing gas from the air chamber 421 and reducing the pressure inside the air chamber 421. Under the push of the external pressure, the inner pressure column 43 slides to the inner limit position, and the inner pressure column 43 can no longer contact the inner ring of the iron core. The transmission gear 53 continues to rotate in the forward direction, causing the drive block 531 to rotate until it abuts against the other side of the driven block 521. This, in turn, causes the driven block 521 to rotate, which in turn causes the lead screw nut 52 to rotate in the forward direction. The forward rotation of the lead screw nut 52 causes the lead screw 512 to slide to the left, which in turn causes the push frame 51 to slide to the left. The sliding of the push frame 51 causes the centering spring 47 on the right side to gradually return to its natural length. The push frame 51 slides to the left relative to the transfer plate 41, while the transfer plate 41 remains stationary. The sliding of the push frame 51 causes the push groove 511 to slide, which in turn causes the eccentrically positioned eccentric column 451 to rotate, thereby causing the two connecting rods 45 to rotate in a direction away from each other. The rotation of the connecting rods 45 causes the moving ring 44 to slide in the front-to-back direction. The sliding of the moving ring 44 causes the fixed tube 42 to slide towards the transfer plate 41 to its limit position, where the fixed tube 42 cannot contact the iron core.

[0071] Next, the pusher 51 continues to slide, causing the transfer plate 41 to slide to its left limit position. The transfer plate 41 is directly opposite the lowermost iron core of the conveying slope 104. The pusher 51 continues to slide, causing it to slide to the left relative to the transfer plate 41. The centering spring 47 on the left is compressed, and at the same time, the pusher 51 slides, causing the two connecting rods 45 to rotate in opposite directions. After the motor gear 541 rotates forward for a certain period of time, the fixing tube 42 slides away from the transfer plate 41 to its limit position, and the fixing tube 42 is inserted into the iron core directly opposite.

[0072] During this process, the controller synchronously controls the paper insertion unit 20 to insert paper into the transfer tube 34 located on the right. The paper insertion unit 20 sequentially cuts and creases the insulating paper, and then pushes it into the opposite temporary storage slot 341. At the same time, the intermittent motor installed on the swing arm 31 intermittently drives the transfer tube 34 to rotate, so that each temporary storage slot 341 is filled with insulating paper.

[0073] Then, the controller controls the motor gear 541 to rotate in the opposite direction for a certain period of time. The reverse rotation of the motor gear 541 drives the transmission gear 53 to rotate in the opposite direction. The reverse rotation of the transmission gear 53 causes the drive block 531 to no longer abut against the driven block 521. At the same time, the reverse rotation of the transmission gear 53 causes the rack 561 to slide upward until it is no longer connected to the transmission gear 53. The tension spring 57 is compressed and stores force. The elastic force of the tension spring 57 allows the rack 561 to slide and connect with the transmission gear 53. The gas in the piston cylinder 55 enters the gas chamber 421. The inner pressure column 43 slides outward to the outer limit position. The inner pressure column 43 presses the inner ring of the iron core, fixing the iron core relative to the fixed tube 42. The continued reverse rotation of the transmission gear 53 will cause the drive block 531 to abut against the driven block 521, thereby driving the lead screw nut 52 to rotate in the opposite direction. The reverse rotation of the lead screw nut 52 causes the pusher 51 to slide to the right. The pusher 51 slides to the right, causing the two connecting rods 45 to rotate, which in turn moves the fixed tube 42 to its limit position near the transfer tray 41. The iron core, which is fixed relative to the fixed tube 42, no longer contacts the adjacent iron core, and the iron core on the conveying ramp 104 continues to roll downward to its lower limit position. During this process, the fixed tube 42 slides toward the transfer tray 41, causing the paper insertion slot 131 on the iron core 13 to abut against the directional ramp 411, thereby driving the iron core to rotate to the specified angle.

[0074] Next, the motor gear 541 continues to rotate in the opposite direction, moving the transfer tray 41 to its right limit position. During this process, the controller controls the rotary motor 32 to rotate the swing arm 31 counterclockwise by half a turn. The transfer tube 34, filled with insulating paper, located on the right, rotates to the left, facing the transfer tray 41. At the same time, the paper insertion slot 131 faces the temporary storage slot 341. The rotation of the transfer tube 34, filled with insulating paper, simultaneously drives the corresponding guide post 372 on the right to slide. The guide post 371 slides along the small circumferential surface 102, the guide arc surface 103, and the large circumferential surface 101, causing the guide post 372 to slide along the swing arm 31, i.e., the inner pull inclined groove 371 slides. The sliding of the inner pull inclined groove 371 drives the extension post 351 to slide, which in turn causes the push rod 35 to slide until it no longer contacts the corresponding transfer tube 34, and the outer push spring 36 is compressed and stores force.

[0075] The motor gear 541 continues to rotate in the reverse direction, causing the pusher 51 to slide relative to the transfer plate 41. This compresses the centering spring 47 on the right side. The sliding of the pusher 51 causes the two connecting rods 45 to rotate in opposite directions, and the fixed tube 42 slides away from the transfer plate 41, meaning the iron core slides away from the transfer plate 41. The sliding of the iron core will abut against the transfer tube 34 and drive the transfer tube 34 to slide synchronously. The transfer tube 34 slides relative to the receiving plate 33, and the limiting post 332 restricts the sliding of the insulating paper, thereby allowing the insulating paper in the temporary storage groove 341 to enter the paper insertion groove 131, and the limiting post 331 to enter the inner ring of the iron core. After the motor gear 541 finishes rotating in the reverse direction, the fixed tube 42 moves to the extreme position away from the transfer plate 41, and the transfer tube 34 moves to the extreme position close to the receiving plate 33. This process repeats.

[0076] As the swing arm 31 rotates counterclockwise half a turn again, when the guide post 372 on the left moves away from the large circumferential surface 101, the push rod 35 slides under the elastic force of the external push spring 36. The sliding push rod 35 will abut against the transfer tube 34 and simultaneously drive the transfer tube 34 to slide away from the receiving plate 33 to its limit position. The guide post 372 moves to abut against the small circumferential surface 102. The sliding of the transfer tube 34 causes the corresponding iron core filled with insulating paper to separate from the inner insertion tube 331. The iron core moves to the second conveyor belt 12 and is then transported to the next station. After the swing arm 31 rotates counterclockwise half a turn, the transfer tube 34 on the left rotates to the right and faces the paper insertion part 20.

[0077] This invention features a transmission gear 53. When the transmission gear 53 rotates, it first drives the piston 56 to slide, which in turn causes the inner pressure column 43 to slide, fixing or separating the fixed tube 42 from the iron core. Subsequently, the rotation of the transmission gear 53 drives the lead screw nut 52 to rotate, causing the transfer plate 41 to rotate, which in turn moves the iron core to insert paper. This invention does not add any new motion mechanism or operating steps, but only has one motion mechanism, making it simple and convenient to use.

[0078] This invention features a pusher 51. When the pusher 51 slides, it first moves the transfer tray 41 to its limit position, aligning it with the iron core on the conveying ramp 104 or with the transfer tube 34 filled with insulating paper. Subsequently, the pusher 51 continues to move, compressing the centering spring 47 and causing the pusher 51 to slide relative to the transfer tray 41. This, in turn, drives the connecting rod 45 to rotate, causing the fixed tube 42 to slide away from the transfer tray 41. The fixed tube 42 is then inserted into the iron core, or the iron core is inserted into the receiving tray 33. This invention does not add any new motion mechanism or operating steps; it only has one motion mechanism, making it simple and convenient to use. In addition, the sliding of the fixed tube 42 relative to the transfer tray 41 allows the iron core, which is fixed relative to the fixed tube 42, to rotate to a designated position under the drive of the directional ramp 411, facilitating subsequent paper insertion. This eliminates the need for manual adjustment of the iron core position, reducing manual intervention and thus improving production efficiency.

[0079] This invention features a switching plate 37. As the swing arm 31 rotates, when the switching plate 37 rotates away from the large circumferential surface 101, the push rod 35 slides under the elastic force of the external push spring 36, pushing the transfer tube 34 to slide away from the receiving plate 33. This allows the iron core filled with insulating paper to fall onto the second conveyor belt. Simultaneously, when the switching plate 37 slides along the guide arc surface 103 to abut against the large circumferential surface 101, the push rod 35 slides until it no longer contacts the transfer tube 34. The transfer tube 34 then slides closer to the receiving plate 33, allowing the insulating paper inside the transfer tube 34 to enter the paper insertion slot 131. This eliminates the need for a separate moving mechanism, simplifying the motion mechanism and reducing production costs.

[0080] This invention can automatically insert insulating paper into the iron core, and can automatically feed and unload materials, reducing manual intervention and facilitating assembly line operation. When placing the iron core, there is no need to adjust the angle and position, as the position of the paper insertion slot can be automatically rotated and adjusted, reducing manual workload and improving production efficiency. The processes of insulating paper cutting and creasing are always in operation, and the movement, feeding, and unloading of the iron core are carried out simultaneously, which shortens the processing cycle and improves production efficiency to a certain extent.

Claims

1. A paper inserter with an electric motor core, characterized in that: It includes a worktable (10), a swing arm (31) rotatably connected to the worktable (10) in the middle, two temporary storage parts disposed at both ends of the swing arm (31), and a paper insertion part (20) disposed on the worktable (10) for inserting insulating paper into the temporary storage parts; the temporary storage part includes a receiving plate (33) rotatably connected to the swing arm (31) and capable of inserting the inner ring of the iron core, and a transfer tube (34) slidably connected to the receiving plate (33). The transfer tube (34) is formed with a plurality of temporary storage slots (341) that can be sequentially connected to each paper insertion slot on the iron core; the receiving plate (33) is formed with a plurality of limiting posts (332) that are sequentially slidably connected to each of the temporary storage slots (341); the temporary storage slots (341), the limiting posts (332) and the paper insertion slots have the same cross-sectional shape; the swing arm (31) rotates to drive the transfer tube (34) to slide; When the receiving plate (33) rotates to the first position, the transfer tube (34) is located at the extreme position away from the receiving plate (33), and the paper insertion slot on the iron core is aligned with the temporary storage slot (341) in sequence. Then, the transfer tube (34) slides relative to the receiving plate (33) to the extreme position where they are close to each other. The insulating paper in the temporary storage slot (341) enters the paper insertion slot, and the receiving plate (33) is inserted into the inner ring of the iron core. When the receiving plate (33) rotates to the second position, the transfer tube (34) slides relative to the receiving plate (33) to the extreme position of being far apart from each other, and the iron core filled with insulating paper is removed from the receiving plate (33). At the same time, the paper insertion part (20) inserts insulating paper into each of the temporary storage slots (341) in sequence. The temporary storage section also includes a push rod (35) slidably connected to the receiving plate (33), a switching plate (37) slidably connected to the swing arm (31) along the length direction of the swing arm (31) and drivenly connected to the push rod (35), and an outward push spring (36) disposed between the push rod (35) and the receiving plate (33) for pushing the push rod (35) away from the receiving plate (33) to push the transfer tube (34). The workbench (10) is provided with a disc coaxially arranged with the rotating shaft of the swing arm (31); the outer wall of the disc is formed with a combined arc surface arranged along the circumference, which allows the push rod (35) to slide away from the transfer tube (34); The combined arc surface includes a small circumferential surface (102) formed on the disk, a large circumferential surface (101) formed on the disk, and a guide arc surface (103) arranged along an involute with its two ends tangent to the small circumferential surface (102) and the large circumferential surface (101) respectively; the radius of the large circumferential surface (101) is larger than the radius of the small circumferential surface (102); the switching plate (37) has a guide post (372) formed on it that abuts against the combined arc surface. When the guide post (372) abuts against the small circumferential surface (102), the push rod (35) pushes the transfer tube (34) to move to the extreme position away from the receiving plate (33); When the guide post (372) abuts against the large circumferential surface (101), the push rod (35) cannot contact the transfer tube (34), the push spring (36) is compressed and stored, and the transfer tube (34) can move to the extreme position close to the receiving plate (33).

2. The paper inserter with an electric motor core as described in claim 1, characterized in that: The outer wall of the push rod (35) is formed with an extension column (351) extending outward; the switching plate (37) is formed with an inclined inner pull groove (371) that is slidably connected to the extension column (351).

3. The paper inserter with an electric motor core as described in claim 1, characterized in that: A transfer tray (41) is slidably connected to the workbench (10) in the left-right direction; a fixed tube (42) for moving the iron core is rotatably connected to the transfer tray (41); a moving ring (44) for driving the fixed tube (42) to slide synchronously is slidably connected to the transfer tray (41) in the front-back direction; the transfer tray (41) has two connecting rods; the connecting rods consist of two connecting rods (45) that are rotatably connected to each other at one end; the other end of one of the connecting rods (45) is rotatably connected to the transfer tray (41), and the other end of the other connecting rod (45) is rotatably connected to the moving ring (44); The workbench (10) is slidably connected to a pusher (51) in the left-right direction, which can drive the connecting rod (45) to rotate and the transfer plate (41) to slide.

4. A paper inserter with an electric motor core as described in claim 3, characterized in that: The connecting rod (45) has an eccentric column (451) with its axis parallel to and not coinciding with the rotation axis of the connecting rod (45); the pusher (51) has a plurality of push grooves (511) for driving the corresponding eccentric column (451) to slide; a centering spring (47) is provided between the two ends of the push groove (511) and the transfer plate (41). In its natural state, the two centering springs (47) cause the push groove (511) to be located in the middle of the transfer tray (41), and the push frame (51) slides to drive the transfer tray (41) to slide synchronously; When the transfer tray (41) moves to one extreme position, the transfer tray (41) cannot slide. The sliding of the pusher (51) will cause the pusher (51) to slide relative to the transfer tray (41), and the corresponding centering spring (47) will be compressed. The connecting rod (45) will rotate to cause the fixed tube (42) to slide relative to the transfer tray (41).

5. A paper inserter with an electric motor core as described in claim 3, characterized in that: The fixed tube (42) has an air cavity (421) formed at one end facing the iron core; a plurality of internal pressure columns (43) that can abut against the inner ring of the iron core are sealed and slidably connected inside the air cavity (421); a piston cylinder (55) that communicates with the air cavity (421) is fixedly connected on the worktable (10); a piston (56) is sealed and slidably connected inside the piston cylinder (55); a transmission gear (53) that can drive the piston (56) to slide and the pusher (51) to slide is rotatably connected on the worktable (10).

6. A paper inserter with an electric motor core as described in claim 5, characterized in that: The piston (56) has a rack (561) formed at one end facing the transmission gear (53) that can be connected to the transmission gear (53) in a transmission manner; a tension spring (57) is provided between the piston (56) and the piston cylinder (55) for sliding the rack (561) toward the transmission gear (53). The pusher (51) has a lead screw (512) formed at one end facing the transmission gear (53); the worktable (10) is rotatably connected to a lead screw nut (52) that is connected to the lead screw (512); the transmission gear (53) can drive the lead screw nut (52) to rotate.

7. A paper inserter with an electric motor core as described in claim 6, characterized in that: The lead screw nut (52) has a driven block (521) formed at one end facing the transmission gear (53); the transmission gear (53) has a driving block (531) formed at one end facing the lead screw nut (52) that can drive the driven block (521) to rotate.

8. A paper inserter with an electric motor core as described in claim 3, characterized in that: The transfer tray (41) has multiple directional inclined surfaces (411) formed at the end facing the iron core, which can drive the paper insertion slot to rotate and thus make the iron core rotate to a fixed angle.

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