Winding core pin mechanism

Abstract

The application provides a roll core pin mechanism, which comprises a separating pin assembly, a pushing pin assembly, a feeding assembly and a positioning assembly. The separating pin assembly comprises a bottom plate, a hopper is arranged on the bottom plate, a plurality of center pins are placed in the hopper, a jacking gap is arranged at the bottom of the hopper, an inclined surface is arranged on the inner wall of the hopper close to the jacking gap, a jacking plate is assembled in the jacking gap, the jacking plate can move in the vertical direction, the top end of the jacking plate is provided with a jacking surface which is arranged obliquely towards the inclined surface, the jacking surface and the inclined surface form a separating space, when the jacking plate moves upwards in the vertical direction, the separating space can gradually decrease to only accommodate one center pin, the top of the inclined surface is provided with a connecting surface, when the jacking plate moves upwards in the vertical direction to the limit position, the center pin in the separating space can move from the inclined surface to the connecting surface. The application can realize the rapid separating of the center pins in the multi-layer stacked material, has a simple structure and can effectively improve the production efficiency.

Description

Technical Field

[0001] This invention relates to the field of battery processing technology, and in particular to a core insertion mechanism. Background Technology

[0002] After the core of a cylindrical battery is wound, a center hole is formed at the center. During battery use, the volume of the core changes due to charging and discharging, which can cause the center hole to collapse. A center pin is usually inserted into the center hole to support the hole wall and prevent collapse.

[0003] The existing pin insertion mechanism is inefficient and cannot meet production needs. Summary of the Invention

[0004] To address the shortcomings of existing technologies, the present invention aims to provide a core inserting mechanism that uses a lifting surface and an inclined surface to achieve rapid needle separation of the center needle in multi-layered material stacking in a hopper, thereby effectively improving production efficiency.

[0005] The embodiments of the present invention are achieved through the following technical solutions: A core insertion mechanism includes a core separating assembly, a core pushing assembly, a feeding assembly, and a positioning assembly. The core separating assembly independently separates center cores; the core pushing assembly pushes the center cores into the center holes of the cores at the insertion station; the feeding assembly conveys the cores; and the positioning assembly positions the cores at the insertion station. The core separating assembly includes a base plate that can be close to or away from the insertion station. A hopper is provided on the base plate, containing a plurality of center cores. A lifting gap is provided at the bottom of the hopper, and the hopper is close to the lifting gap. The inner wall is provided with an inclined surface, and a lifting plate is installed in the lifting gap. The lifting plate can move in the vertical direction. The top of the lifting plate is provided with a lifting surface that is inclined towards the inclined surface. The lifting surface and the inclined surface form a material distribution space. When the lifting plate moves upward in the vertical direction, the material distribution space can gradually decrease to accommodate only one center pin. The top of the inclined surface is provided with a connecting surface. When the lifting plate moves upward in the vertical direction to the limit position, the center pin in the material distribution space can move from the inclined surface to the connecting surface.

[0006] According to a preferred embodiment, the hopper includes two limiting plates arranged opposite each other along the axial direction of the central needle. A sealing plate is provided at one end of the two limiting plates along their length direction, and an inclined support plate is provided at the other end. An inclined material support plate is arranged at the bottom of the two limiting plates. The inclined material support plate is inclined toward the inclined support plate. The inclined material support plate, the sealing plate, the inclined support plate, and the two limiting plates constitute a needle storage space. A plurality of central needles are placed in the needle storage space. The lifting gap is formed between the inclined material support plate and the inclined support plate. The inclined support surface is provided on the side of the inclined support plate facing the sealing plate, and the connecting surface is provided on the top of the inclined support plate.

[0007] According to a preferred embodiment, the needle-dispensing assembly further includes two side baffles mounted on the inclined plate. The side baffles are located on the side of the inclined plate away from the sealing plate. A connecting inclined plate, a first baffle, and a second baffle are disposed between the two side baffles. The upper side of the connecting inclined plate smoothly transitions to the connecting surface. A single needle storage groove is formed between the first baffle and the second baffle. The lower end of the connecting inclined plate extends to the single needle storage groove. A separating plate is movably disposed below the single needle storage groove. A needle-dispensing groove is disposed on one side of the separating plate facing the single needle storage groove. The needle-dispensing groove can only accommodate one center needle. The separating plate can move so that the needle-dispensing groove reciprocates between a dispensing position and a pushing position. When the needle-dispensing groove is in the dispensing position, the needle-dispensing groove is connected to the single needle storage groove.

[0008] According to a preferred embodiment, a connecting block is mounted on the base plate, and a connecting groove is provided on the connecting block. When the dispensing needle groove is in the pushing position, the connecting groove is coaxially connected with the dispensing needle groove.

[0009] According to a preferred embodiment, the pusher assembly includes a pusher rod structure movably disposed on the base plate. When the needle slot is in the pusher position, the pusher rod structure can act on the center needle in the needle slot so that the center needle can pass through the splice groove and be inserted into the center hole of the core in the inserting position.

[0010] According to a preferred embodiment, the positioning component includes a positioning push block and a positioning stop block, the positioning push block and the positioning stop block can move closer to each other or further away from each other, and the feeding component is located between the positioning push block and the positioning stop block.

[0011] According to a preferred embodiment, the positioning block is provided with a clearance notch, which is used to expose the core center hole at the insertion station to the pusher assembly.

[0012] According to a preferred embodiment, the connecting surface is an inclined surface, and the inclination direction of the connecting surface is consistent with the inclination direction of the lifting surface.

[0013] According to a preferred embodiment, there is a gap between the lifting plate and the inclined surface, the diameter of the center pin is D, and the maximum value of the gap between the lifting plate and the inclined surface is d, where d = 0.2D - 0.4D.

[0014] According to a preferred embodiment, both the lifting surface and the inclined surface are planes, and the included angle between the inclined surface and the lifting surface is α, where 60°≤α<90°.

[0015] According to a preferred embodiment, when the center needle is in the needle slot, the highest point of the center needle in the vertical direction is lower than the lowest point of the second baffle in the vertical direction.

[0016] According to a preferred embodiment, the push rod structure includes a mounting base and a push rod portion. The mounting base has an assembly hole on one end face facing the separation plate. A pressure sensor is disposed in the assembly hole. The push rod portion is at least partially slidably mounted in the assembly hole. An end cap is fitted to one end of the assembly hole facing the separation plate. The push rod portion passes through the end cap. An insulating top block and a first buffer spring are also fitted in the assembly hole. The insulating top block is disposed close to the pressure sensor. The first buffer spring is pressed between the push rod portion and the insulating top block. The push rod portion can act on the insulating top block through the first buffer spring, so that the insulating top block abuts against the pressure sensor.

[0017] According to a preferred embodiment, a clearance groove is provided through the sidewall of the assembly hole; the push rod, the first buffer spring, the insulating top block and the pressure sensor can all be exposed to the outside through the clearance groove.

[0018] According to a preferred embodiment, the push rod portion includes an interconnected mounting section, a transition section, and a drive section, wherein the mounting section and the drive section are connected by the transition section, the free end of the mounting section passes through the end cover and extends into the mounting hole, the mounting section is provided with a thrust shoulder, the thrust shoulder is located between the end plate and the first buffer spring; the drive section corresponds to the connecting groove in a first direction.

[0019] The technical solutions of the embodiments of the present invention have at least the following advantages and beneficial effects: This invention achieves rapid needle separation of the center needle in multi-layered material stacking in a silo by using a lifting surface and an inclined surface in combination. The structure is simple and can effectively improve production efficiency. At the same time, the lifting surface and the inclined surface apply force to the center needle in the axial direction of the center needle, thereby effectively preventing the center needle from bending and deforming due to pressure. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 A three-dimensional structural schematic diagram of the core insert mechanism provided in an embodiment of the present invention; Figure 2 This is a schematic diagram of the assembly structure of the dispensing needle assembly and the pusher needle assembly provided in an embodiment of the present invention; Figure 3 for Figure 2 A top view of the structure shown; Figure 4 for Figure 3 Sectional view of section AA; Figure 5 for Figure 4 A magnified view of the structure at point B in the middle; Figure 6 A three-dimensional structural schematic diagram of the pusher assembly provided in an embodiment of the present invention; Figure 7 This is a schematic diagram of the structure when the dispensing groove is in the dispensing position in an embodiment of the present invention; Figure 8 This is a schematic diagram of the structure when the needle groove is in the pushing position in an embodiment of the present invention; Figure 9 This is a front view schematic diagram of the pusher rod structure provided in an embodiment of the present invention; Figure 10 for Figure 9 A cross-sectional view of the CC structure; Figure 11 This is a three-dimensional structural diagram of the driving positioning part provided in an embodiment of the present invention; Figure 12 This is a three-dimensional structural diagram of the reference positioning part provided in an embodiment of the present invention.

[0022] Icons: 1. Distributor assembly; 11. Base plate; 111. Extension frame; 112. Third slide cylinder; 12. Material bin; 120. Lifting clearance; 121. Inclined backing plate; 1210. Inclined backing surface; 1211. Connecting surface; 122. Limiting plate; 123. Sealing plate; 124. Inclined material support plate; 125. Needle storage space; 126. Side mounting plate; 1261. Mounting shaft; 13. Lifting plate; 130. Lifting surface; 1 4. Material distribution space; 15. Side baffle; 151. Connecting inclined plate; 152. First baffle; 153. Second baffle; 154. Single needle storage trough; 16. Separating plate; 161. Needle distribution groove; 162. First slide cylinder; 17. Connecting block; 171. Connecting groove; 172. Second slide cylinder; 2. Center needle; 3. Needle pusher assembly; 31. Needle pusher rod structure; 311. Mounting base; 3111. Assembly hole; 3 112. Clearance groove; 312. Push rod section; 3121. Mounting section; 3122. Adapter section; 3123. Drive section; 313. End cap; 314. Pressure sensor; 315. Insulating top block; 316. First buffer spring; 32. Transfer plate; 33. Adapter plate; 34. First linear module; 4. Positioning assembly; 41. Drive positioning section; 411. Positioning push block; 412. First support; 413. 414. Cylinder; 415. Push plate; 416. Drive shaft; 417. Second buffer spring; 418. Tail gear sheet metal; 42. Reference positioning part; 421. Positioning block; 4211. Avoidance notch; 422. Second support; 423. Second cylinder; 5. Feeding assembly; 51. Positioning plate; 6. Second linear module; 7. Third linear module; 8. Core; X, First direction; Y, Second direction; Z, Vertical direction. Detailed Implementation

[0023] To better understand and implement this invention, the technical solutions in the embodiments of this invention will be clearly and completely described below with reference to the accompanying drawings.

[0024] In the description of this invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

[0026] Please refer to Figures 1 to 12 A core insertion mechanism includes a needle-separating assembly 1, a needle-pushing assembly 3, a feeding assembly 5, and a positioning assembly 4. The needle-separating assembly 1 is used to independently separate center needles 2; the needle-pushing assembly 3 is used to push the center needles 2 into the center hole of the core 8 at the insertion station; the feeding assembly 5 is used to transport the core 8; and the positioning assembly 4 is used to position the core 8 at the insertion station. The needle-separating assembly 1 includes a base plate 11, which can be close to or away from the insertion station. A hopper 12 is provided on the base plate 11, and a plurality of center needles 2 are placed inside the hopper 12. A lifting gap 120 is provided at the bottom of the hopper 12, and an inclined surface 1 is provided on the inner wall of the hopper 12 near the lifting gap 120. 210, a lifting plate 13 is installed within the lifting gap 120. The lifting plate 13 can move vertically in the Z direction. The top of the lifting plate 13 is provided with a lifting surface 130 inclined towards the inclined surface 1210. The lifting surface 130 and the inclined surface 1210 form a material distribution space 14. When the lifting plate 13 moves upward in the vertical Z direction, the material distribution space 14 can gradually decrease to accommodate only one center needle 2. The top of the inclined surface 1210 is provided with a connecting surface 1211. When the lifting plate 13 moves upward in the vertical Z direction to its limit position, the center needle 2 in the material distribution space 14 can move from the inclined surface 1210 to the connecting surface 1211. Figure 4 and Figure 5 As shown, during use, the upper end of the lifting plate 13, i.e., the lifting surface 130, is located within the lifting gap 120 and at the lower side of the bottom of the hopper 12. At this time, there are multiple center pins 2 above the lifting surface 130. As the lifting plate 13 moves upward in the vertical direction Z, the center pins 2 above the lifting surface 130 move upward under the action of the lifting surface 130. As the height of the lifting surface 130 in the vertical direction Z continuously increases, the material distribution space 14 is continuously compressed and reduced under the action of the inclined surface 1210. This causes the excess center pins 2 in the material distribution space 14 to fall back into the hopper 12, realizing the rapid separation of the center pins 2, and transporting a single center pin 2 to the connecting surface 1211 to participate in subsequent operations. This invention achieves rapid separation of center pins 2 placed in multiple layers of material in the hopper 12 through the cooperation of the lifting surface 130 and the inclined surface 1210. The structure is simple and can effectively improve production efficiency.

[0027] It should be emphasized that as the lifting plate 13 rises continuously, the center needle 2 in the material distribution space 14 is continuously squeezed by the lifting surface 130 and the inclined surface 1210, so that excess center needle 2 is removed from the material distribution space 14 and falls back into the hopper 12. During this process, the lifting surface 130 and the inclined surface 1210 exert force on the center needle 2 in the axial direction, which can effectively prevent the center needle 2 from bending and deforming due to pressure.

[0028] It should be noted that there is a gap between the lifting plate 13 and the inclined surface 1210 to avoid interference between them, but the size of this gap will not cause leakage or jamming of the center pin 2. For example, if the diameter of the center pin 2 is D, the maximum value of the gap between the lifting plate 13 and the inclined surface 1210 is d, optionally d = 0.2D-0.4D. Preferably, d = 0.3D.

[0029] In this embodiment, the lifting plate 13 extends through the base plate 11 into the lifting gap 120.

[0030] In this embodiment, preferably, both the lifting surface 130 and the inclined surface 1210 are planes, and the included angle between the inclined surface 1210 and the lifting surface 130 is α, where 60°≤α<90°. Optionally, α=60°. This arrangement facilitates the smooth removal of excess center pins 2 from the material distribution space 14, while preventing the easy removal of any single center pin 2 that needs to be retained from the material distribution space 14. It also avoids the center pin 2 getting stuck in the material distribution space 14 during the lifting process of the lifting plate 13.

[0031] Preferably, the connecting surface 1211 is an inclined surface, and the inclination direction of the connecting surface 1211 is consistent with the inclination direction of the lifting surface 130. This arrangement facilitates the smooth transition of the center pin 2 from the lifting surface 130 to the connecting surface 1211.

[0032] In some embodiments, the hopper 12 includes two limiting plates 122 arranged opposite each other along the axial direction of the central needle 2. A sealing plate 123 is provided at one end of the length of each limiting plate 122, and a sloping plate 121 is provided at the other end. A sloping support plate 124 is disposed at the bottom of the two limiting plates 122, and the sloping support plate 124 is inclined towards the sloping plate 121. The sloping support plate 124, the sealing plate 123, the sloping plate 121, and the two limiting plates 122 constitute a needle storage space 125. A plurality of central needles 2 are placed in the needle storage space 125. A lifting gap 120 is formed between the sloping support plate 124 and the sloping plate 121. A sloping surface 1210 is provided on the side of the sloping plate 121 facing the sealing plate 123, and a connecting surface 1211 is provided on the top of the sloping plate 121. In this embodiment, both the sloping plate 121 and the sealing plate 123 are installed on the base plate 11 by bolts or screws.

[0033] like Figures 2 to 4As shown, in some embodiments, the hopper 12 further includes side mounting plates 126, with two side mounting plates 126 spaced apart along a first direction X. The side mounting plates 126 are fixedly mounted on the base plate 11, and two limiting plates 122 are located between the two side mounting plates 126, with the limiting plates 122 fixedly mounted on the adjacent side mounting plate 126 via mounting shafts 1261. A slanted support plate 124 is mounted between the two side mounting plates 126, with the limiting plates 122 abutting against the upper side of the slanted support plate 124. A slanted backing plate 121 is mounted between the two side mounting plates 126, with the limiting plates 122 abutting against the slanted backing plate 121 and fixedly mounted to the slanted backing plate 121 by bolts. With this configuration, the width between the two limiting plates 122 can be adjusted by changing the mounting shafts 1261 according to the length specifications of the center pin 2, thereby achieving the purpose of accommodating center pins 2 of different specifications.

[0034] like Figure 3 and Figure 5As shown, the needle assembly 1 also includes two side baffles 15 mounted on the inclined plate 121. The side baffles 15 are located on the side of the inclined plate 121 away from the sealing plate 123. A connecting inclined plate 151, a first baffle 152, and a second baffle 153 are provided between the two side baffles 15. The upper side of the connecting inclined plate 151 smoothly transitions to the connecting surface 1211. A single needle storage groove 154 is formed between the first baffle 152 and the second baffle 153. The lower side of the connecting inclined plate 151... The end extends to the single needle storage groove 154; a separating plate 16 is movably provided below the single needle storage groove 154, and a needle-dividing groove 161 is provided on one side of the separating plate 16 facing the single needle storage groove 154. The needle-dividing groove 161 can only accommodate one center needle 2. The separating plate 16 can move to make the needle-dividing groove 161 reciprocate between the dispensing position and the pushing position. When the needle-dividing groove 161 is in the dispensing position, the needle-dividing groove 161 is connected to the single needle storage groove 154. In this embodiment, the separating plate 16 is driven by a first slide cylinder 162 provided on the base plate 11, and is movably mounted on the base plate 11 by the first slide cylinder 162. It should be noted that the separating plate 16 is close to the lower end of the first baffle 152 and the second baffle 153, and the upper side of the separating plate 16 provides a vertically upward support force for the center needle 2 in the single needle storage groove 154. In use, the center needles 2 in the hopper 12 are separated and then enter the single needle storage groove 154 through the connecting inclined plate 151, forming a single-layer row of center needles 2 stacked vertically in the Z direction. It should be noted that the width of the single needle storage groove 154 is slightly larger than the diameter of the center needles 2. The first slide cylinder 162 drives the separating plate 16 to move. When the needle-separating groove 161 is in the dispensing position, the bottom center needle 2 of the single-layer row of center needles 2 enters the needle-separating groove 161. Then the separating plate 16 moves, and the needle-separating groove 161 moves toward the pushing position. The side of the separating plate 16 facing the single needle storage groove 154 seals the bottom of the single needle storage groove 154 to prevent needle leakage or needle jamming. In this embodiment, when the center needle 2 is in the needle-separating groove 161, the highest point of the center needle 2 in the vertical Z direction is lower than the lowest point of the second baffle 153 in the vertical Z direction. This ensures that the separating plate 16 moves smoothly in the horizontal direction, and also ensures that the needle slot 161 reciprocates between the dispensing position and the pushing position. The single needle storage slot 154 here can arrange and buffer the center needles 2 in a single layer to cooperate with the separating plate 16 to achieve rapid needle dispensing, and transfer the center needles 2 to the pushing position to prepare for the subsequent needle insertion action, which is conducive to further improving the working efficiency of the core insertion mechanism.

[0035] In some embodiments, the side baffle 15 is mounted to the inclined plate 121 by bolts or screws, and the connecting inclined plate 151, the first baffle 152 and the second baffle 153 are all mounted to the side baffle 15 by bolts or screws.

[0036] like Figure 2As shown, a connecting block 17 is mounted on the base plate 11, and a connecting groove 171 is provided on the connecting block 17. When the needle slot 161 is in the pushing position, the connecting groove 171 is coaxially connected with the needle slot 161. Preferably, the connecting block 17 is movably mounted on the base plate 11 via a second slide cylinder 172, serving as a transition between the needle assembly 1 and the core 8. Specifically, when the needle slot 161 is in the pushing position, the pusher assembly 3 drives the center needle 2 in the needle slot 161 to move into the connecting groove 171, and after passing through the connecting groove 171, inserts it into the center hole of the core 8.

[0037] like Figure 4 As shown, an extension frame 111 is mounted on the base plate 11, and the lifting plate 13 is movably mounted on the extension frame 111 in the vertical direction Z by the third slide cylinder 112.

[0038] like Figures 2 to 4 , Figure 6 As shown, the pusher assembly 3 includes a pusher rod structure 31 movably disposed on the base plate 11. When the needle slot 161 is in the pusher position, the pusher rod structure 31 can act on the center needle 2 in the needle slot 161, so that the center needle 2 can pass through the connecting groove 171 and be inserted into the center hole of the core 8 in the inserting position. Specifically, two adapter plates 33 are spaced apart along the first direction X on the base plate 11, and a transfer plate 32 is disposed between the two adapter plates 33. A first linear module 34 is mounted on the transfer plate 32. The pusher rod structure 31 is mounted on the first linear module 34 and can be driven by the first linear module 34 to move along the first direction X. That is to say, the pusher rod structure 31 is movably mounted on the base plate 11 through the first linear module 34, the transfer plate 32, and the adapter plate 33.

[0039] In this embodiment, the first direction X is parallel to the extension direction of the needle groove 161 and the extension direction of the connecting groove 171.

[0040] like Figure 7 The diagram shows the structure of the needle slot 161 when it is in the dispensing position. At this time, the needle slot 161 is below the single needle storage tank 154 and is connected to the single needle storage tank 154; Figure 8 The diagram shows the structure of the needle groove 161 when it is in the pushing position. At this time, the needle groove 161 corresponds to the connecting groove 171 and the center hole of the core 8 of the inserting station in the first direction X.

[0041] like Figure 6 , Figure 9 and Figure 10As shown, the push rod structure 31 includes a mounting base 311 and a push rod portion 312. The mounting base 311 is fixedly mounted on the first linear module 34 and driven by the first linear module 34. The mounting base 311 has an assembly hole 3111 on one end face facing the separation plate 16. A pressure sensor 314 is disposed in the assembly hole 3111. The push rod portion 312 is at least partially slidably mounted in the assembly hole 3111. An end cap 313 is mounted on one end of the assembly hole 3111 facing the separation plate 16. The push rod portion 312 passes through the end cap 313. An insulating top block 315 and a first buffer spring 316 are also mounted in the assembly hole 3111. The insulating top block 315 is disposed close to the pressure sensor 314. The first buffer spring 316 is pressed between the push rod portion 312 and the insulating top block 315. The push rod portion 312 can act on the insulating top block 315 through the first buffer spring 316 so that the insulating top block 315 abuts against the pressure sensor 314. In this embodiment, the push rod 312 acts directly on the center pin 2. During the insertion of the center pin 2 into the center hole of the core 8, the first buffer spring 316 is compressed and deformed to achieve flexible contact between the push rod 312 and the center pin 2, avoiding damage to the hole wall of the center hole during the insertion of the center pin 2. At the same time, the pressure sensor 314 can monitor the pressure value of the push rod 312 in real time, thereby guiding the first linear module 34 to further drive the push pin rod structure 31 to move. For example, when the pressure value of the push rod 312 is less than a threshold, the first linear module 34 continues to drive the push pin rod structure 31 to move towards the core 8, while when the pressure value of the push rod 312 is greater than or equal to the threshold, the first linear module 34 drives the push pin rod structure 31 to move away from the core 8.

[0042] It should be noted that the pressure sensor 314 and the first linear module 34 can be electrically connected or communication connected, and the two can also be linked through a CPU (Central Processing Unit). This is existing technology and will not be described in detail here.

[0043] In this embodiment, a clearance groove 3112 is provided through the sidewall of the assembly hole 3111; the push rod 312, the first buffer spring 316, the insulating top block 315, and the pressure sensor 314 can all be exposed outward through the clearance groove 3112. The clearance groove 3112 is used to accommodate part of the structure of the pressure sensor 314; at the same time, the clearance groove 3112 forms a visual window, facilitating observation or maintenance of the various components within the assembly hole 3111 by personnel. It should be noted that the assembly hole 3111 extends along the first direction X and is a blind hole; the pressure sensor 314 is mounted on the bottom inner side of the assembly hole 3111.

[0044] Furthermore, the push rod portion 312 includes an interconnected mounting section 3121, a transition section 3122, and a drive section 3123. The mounting section 3121 and the drive section 3123 are connected via the transition section 3122. The free end of the mounting section 3121 passes through the end cover 313 and extends into the mounting hole 3111. A thrust shoulder is provided on the mounting section 3121, located between the end plate and the first buffer spring 316. The drive section 3123 corresponds to the connecting groove 171 in the first direction X. Preferably, the drive section 3123 is cylindrical, and its axial direction is parallel to the first direction X. This configuration effectively avoids interference between the push rod structure 31 and the separating plate 16, facilitating the drive rod portion 312 to drive the center needle 2 within the needle slot 161 and the connecting groove 171.

[0045] Optionally, both the needle groove 161 and the connecting groove 171 can be V-grooves or U-grooves.

[0046] like Figure 1 As shown, the positioning component 4 includes a positioning push block 411 and a positioning stop block 421. The positioning push block 411 and the positioning stop block 421 can move closer to or further away from each other, and the feeding component 5 is located between the positioning push block 411 and the positioning stop block 421. In use, the positioning stop block 421 serves as a reference and works with the positioning push block 411 to position the core 8 at the pin insertion station, facilitating the pin insertion operation.

[0047] Specifically, such as Figure 1 , Figure 11 and Figure 12 As shown, the positioning component 4 includes a drive positioning part 41 and a reference positioning part 42, and the feeding component 5 is located between the drive positioning part 41 and the reference positioning part 42.

[0048] Further, the drive positioning unit 41 includes a first support 412, a first cylinder 413 is disposed on the top of the first support 412, a push plate 414 is mounted on the driving end of the piston rod of the first cylinder 413, a drive shaft 415 is disposed through the push plate 414, a positioning push block 411 is disposed at the end of the drive shaft 415 facing the feeding assembly 5, and a second buffer spring 416 is sleeved on the drive shaft 415, the second buffer spring 416 being located between the positioning push block 411 and the push plate 414. Optionally, the drive shaft 415 is slidably connected to the push plate 414 via a linear bearing, and a tail stop sheet metal 417 is disposed at the end of the drive shaft 415 away from the positioning push block 411 to prevent the drive shaft 415 from disengaging from the push plate 414. The second buffer spring 416 allows the positioning push block 411 to make flexible contact with the core 8, avoiding damage to the core 8. In this embodiment, the axial direction of the drive shaft 415 is parallel to the first direction X.

[0049] Furthermore, the reference positioning part 42 includes a second support 422, a second cylinder 423 is provided on the top of the second support 422, and a positioning stop 421 is assembled on the driving end of the piston rod of the second cylinder 423.

[0050] The positioning block 421 has a through notch 4211, which is used to expose the center hole of the core 8 in the pin insertion position to the pusher assembly 3.

[0051] like Figure 1 As shown, the feeding assembly 5 can be an existing magnetic drive line or conveyor belt, etc. The magnetic drive line or conveyor belt is equipped with a positioning plate 51 for supporting the core 8, and the positioning plate 51 has a V-shaped groove for accommodating the core 8. Specifically, the feeding assembly 5 moves along the second direction Y to continuously transport the core 8 to be inserted to the insertion station, and transports the core 8 after insertion away from the insertion station. It can be understood that several positioning plates 51 are arranged at intervals in the second direction Y.

[0052] In this embodiment, the second direction Y is perpendicular to the first direction X. Both the first direction X and the second direction Y are perpendicular to the vertical direction Z.

[0053] like Figure 1 As shown, in this embodiment, the core insertion pin mechanism further includes a second linear module 6 and a third linear module 7. The third linear module 7 is assembled to the second linear module 6 and can be driven by the second linear module 6 to move along the second direction Y. The base plate 11 is mounted to the third linear module 7 and can be driven by the third linear module 7 to move along the vertical direction Z. This allows the base plate 11 to move closer to or further away from the pin insertion station, facilitating spatial position adjustment of the core insertion pin mechanism.

[0054] The technical means disclosed in this invention are not limited to those disclosed in the above embodiments, but also include technical solutions composed of any combination of the above technical features. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of this invention, and these improvements and modifications are also considered within the scope of protection of this invention.

Claims

1. A core insert mechanism, characterized in that, The device includes a needle-separating assembly, a needle-pushing assembly, a feeding assembly, and a positioning assembly. The needle-separating assembly is used to independently separate the center needle; the needle-pushing assembly is used to push the center needle into the center hole of the core located at the needle insertion station; the feeding assembly is used to transport the core; and the positioning assembly is used to position the core at the needle insertion station. The needle assembly includes a base plate that can be close to or away from the needle insertion station. A hopper is provided on the base plate, and several center needles are placed in the hopper. A lifting gap is provided at the bottom of the hopper, and an inclined surface is provided on the inner wall of the hopper near the lifting gap. A lifting plate is installed in the lifting gap and can move vertically. A lifting surface is provided at the top of the lifting plate and is inclined towards the inclined surface. The lifting surface and the inclined surface form a material distribution space. When the lifting plate moves upward vertically, the material distribution space can gradually decrease to accommodate only one center needle. A connecting surface is provided at the top of the inclined surface. When the lifting plate moves upward vertically to its limit position, the center needle in the material distribution space can move from the inclined surface to the connecting surface.

2. The core insert mechanism according to claim 1, characterized in that, The hopper includes two limiting plates arranged opposite each other along the axial direction of the central needle. One end of the two limiting plates along their length is provided with a sealing plate, and the other end is provided with a sloping backing plate. The bottom of the two limiting plates is provided with a sloping material support plate, which is inclined towards the sloping backing plate. The sloping material support plate, the sealing plate, the sloping backing plate, and the two limiting plates constitute a needle storage space. Several central needles are placed in the needle storage space. The lifting gap is formed between the sloping material support plate and the sloping backing plate. The sloping backing surface is provided on the side of the sloping backing plate facing the sealing plate, and the connecting surface is provided on the top of the sloping backing plate.

3. The core insert mechanism according to claim 2, characterized in that, The needle assembly also includes two side baffles installed on the inclined plate. The side baffles are located on the side of the inclined plate away from the sealing plate. A connecting inclined plate, a first baffle, and a second baffle are provided between the two side baffles. The upper side of the connecting inclined plate smoothly transitions with the connecting surface. A single needle storage groove is formed between the first baffle and the second baffle. The lower end of the connecting inclined plate extends to the single needle storage groove. A separating plate is movably provided below the single needle storage tank. A needle-dividing groove is provided on one side of the separating plate facing the single needle storage tank. The needle-dividing groove can only accommodate one center needle. The separating plate can move so that the needle-dividing groove reciprocates between the dispensing position and the pushing position. When the needle-dividing groove is in the dispensing position, the needle-dividing groove is connected to the single needle storage tank.

4. The core insert mechanism according to claim 3, characterized in that, The base plate is equipped with a connecting block, and the connecting block is provided with a connecting groove. When the dispensing needle groove is in the pushing position, the connecting groove is coaxially connected with the dispensing needle groove.

5. The core insert mechanism according to claim 4, characterized in that, The pusher assembly includes a pusher rod structure movably disposed on the base plate. When the needle slot is in the pusher position, the pusher rod structure can act on the center needle in the needle slot so that the center needle can pass through the splice groove and be inserted into the center hole of the core in the inserting position.

6. The core insert mechanism according to claim 1, characterized in that, The positioning component includes a positioning push block and a positioning stop block, which can move closer to or further away from each other, and the feeding component is located between the positioning push block and the positioning stop block.

7. The core insert mechanism according to claim 6, characterized in that, The positioning block is provided with a clearance notch, which is used to expose the core center hole at the insertion station to the pusher assembly.

8. The core insert mechanism according to claim 1, characterized in that, The connecting surface is an inclined surface, and the inclination direction of the connecting surface is consistent with the inclination direction of the lifting surface.

9. The core insert mechanism according to claim 1, characterized in that, There is a gap between the lifting plate and the inclined surface. The diameter of the center pin is D. The maximum value of the gap between the lifting plate and the inclined surface is d, where d = 0.2D - 0.4D.

10. The core insert mechanism according to claim 1, characterized in that, Both the lifting surface and the inclined surface are planes, and the angle between the inclined surface and the lifting surface is α, where 60°≤α<90°.

11. The core insert mechanism according to claim 3, characterized in that, When the center needle is in the needle slot, the highest point of the center needle in the vertical direction is lower than the lowest point of the second baffle in the vertical direction.

12. The core insert mechanism according to claim 5, characterized in that, The push rod structure includes a mounting base and a push rod portion. The mounting base has an assembly hole on one end face facing the separation plate. A pressure sensor is disposed in the assembly hole. The push rod portion is at least partially slidably mounted in the assembly hole. An end cap is mounted on one end of the assembly hole facing the separation plate. The push rod portion passes through the end cap. An insulating top block and a first buffer spring are also mounted in the assembly hole. The insulating top block is disposed close to the pressure sensor. The first buffer spring is pressed between the push rod portion and the insulating top block. The push rod portion can act on the insulating top block through the first buffer spring, so that the insulating top block abuts against the pressure sensor.

13. The core insert mechanism according to claim 12, characterized in that, The sidewall of the assembly hole is provided with a clearance groove; the push rod, the first buffer spring, the insulating top block and the pressure sensor can all be exposed to the outside through the clearance groove.

14. The core insert mechanism according to claim 12, characterized in that, The The push rod section includes an interconnected mounting section, a transition section, and a drive section. The mounting section and the drive section are connected by the transition section. The free end of the mounting section passes through the end cover and extends into the mounting hole. The mounting section is provided with a thrust shoulder, which is located between the end plate and the first buffer spring. The drive section corresponds to the connecting groove in a first direction.

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