CN118682980A - Automatic feeding equipment for pin injection mold - Google Patents

Abstract

The present invention discloses an automatic feeding device for a pin injection mold, comprising a cutting mold, a transfer mechanism, a needle removal clamping claw assembly, a rotating assembly and an implanting gripper assembly, wherein the transfer mechanism comprises a driving module and a jig detachably mounted on the driving module for placing a plurality of pins, the jig being provided with a slot, the needle removal clamping claw assembly being used to insert the cut pins into the slot, the rotating assembly comprising a rotatable turntable, a transfer plate arranged on the turntable for taking and placing the jig, and a driving cylinder for driving the transfer plate to move, the transfer plate takes the jig with the pins placed thereon from the transfer mechanism and rotates a certain angle to move to the material taking position of the implanting gripper assembly, the implanting gripper assembly can be used to move the jig with the pins on the transfer plate to the front of the injection mold and insert the pins on the jig into the injection mold; the present invention can realize the full automation of the pin implanting injection mold. Cyclic operation, no manual intervention is required, greatly saving labor costs and improving work efficiency.

Description

Automatic feeding equipment for pin injection mold

Technical Field

The invention relates to the technical field of pin implantation, in particular to automatic feeding equipment for a pin injection mold.

Background Art

Existing electronic products are generally produced by inserting pins after injection molding. The plug-in production pins of the vertical molding machine are usually placed manually in the mold core by the operator. This production method consumes a lot of manpower, has a long production cycle, and has a high defect rate of finished products. There may even be the undesirable phenomenon of reverse pin placement. In addition, the pin itself is small and light in structure, and there are many problems with manual injection molding. It is difficult to manually place it into the mold core, and it is easy to bend the pin, resulting in low work efficiency. Different injection molding times lead to different injection molding effects, which affects the molding quality of the product.

Summary of the invention

The purpose of the present invention is to overcome the deficiencies of the prior art and provide an automatic feeding device for a pin injection mold to solve the above problems.

The objective of the present invention is achieved through the following technical solutions:

A kind of automatic feeding equipment for pin injection mold, including a cutting mold, a transfer mechanism, a needle removal clamping claw assembly, a rotating assembly and an implanting gripper assembly for inserting pins into the injection mold, the transfer mechanism includes a driving module and a jig detachably mounted on the driving module for placing multiple pins, the jig is provided with multiple slots cooperating with the pins, the needle removal clamping claw assembly can be moved along the x-axis and y-axis to insert the cut pins into the slots, the rotating assembly includes a rotatable turntable, a transfer plate arranged on the turntable for taking and placing the jig, and a driving cylinder for driving the transfer plate to move, the transfer plate removes the jig with the pins from the transfer mechanism and rotates a certain angle to move to the taking position of the implanting gripper assembly, the implanting gripper assembly can be moved along the x-axis, y-axis and z-axis to move the jig with the pins on the transfer plate to the front of the injection mold and insert the pins on the jig into the injection mold.

In the above invention content, further, the needle removal clamp assembly includes a linear module arranged along the x-axis, a mounting plate set on the slider of the linear module, a clamp slidably set on the mounting plate, and a propulsion cylinder arranged along the y-axis direction. The mounting plate is slidably connected with a movable plate through a track, the output shaft of the propulsion cylinder is fixedly connected to the movable plate, and the clamp is placed on the movable plate, including a clamp composed of a clamp plate 1 and a clamp plate 2 arranged up and down, and one end of the cut pin is clamped by the clamp plate 1 and the clamp plate 2.

In the above invention, further, at least four clamping jaws are provided, and the distances between the four clamping jaws correspond to the pin distances on the pin strip.

In the above invention, further, the driving module includes linear modules arranged along the x-axis and the y-axis respectively, and the transfer mechanism also includes a hanging plate 1 fixed on the slider of the y-axis linear module, and the hanging plate 1 is provided with at least two hanging rods for hanging the fixture.

In the above invention content, further, the fixture includes an insert plate and a discharge plate connected to the insert plate through a spring, and a guide column is provided on the side of the discharge plate facing the insert plate, and the guide column passes through the through hole on the insert plate. The slot is arranged on the insert plate, and a hanging groove corresponding to the two hanging rods is also provided on the insert plate, and a plurality of limit rods are provided on the side of the insert plate with the pin.

In the above invention content, further, the hanging groove is a V-shaped hanging groove, one end of one of the two hanging rods is provided with an annular clamping groove, and one end of the other hanging rod is provided with an inverted V-shaped clamping block that cooperates with the V-shaped hanging groove, and the two hanging rods respectively pass through the unloading plate and cooperate with the hanging groove to fix the fixture.

In the above invention, further, a rotating cylinder is provided between the slider on the Y-axis linear module and the hanging plate, and the rotating cylinder drives the hanging plate to rotate 180 degrees. The unloading plate is provided with ejectors arranged one by one corresponding to the slot positions, and one end of the ejector is inserted into the slot.

In the above invention content, further, the rotating assembly also includes a slide rail arranged on the turntable and a rotating cylinder for driving the turntable to rotate. The transfer plate is slidably connected to the slide rail, and the output end of the driving cylinder is fixedly connected to the transfer plate. Two transfer plates are arranged on the turntable, and the sliding tracks of the two transfer plates are arranged at 90 degrees.

In the above invention, further, the transfer plate is provided with at least two positioning holes and a plurality of suction cups, a side of the plug board where the pins are inserted is provided with positioning columns corresponding to the positioning holes, and the transfer plate is also provided with protrusions corresponding to the slot positions one by one.

In the above invention content, further, the implant gripper assembly includes linear modules arranged along the x-axis, y-axis and z-axis respectively and a gripper connected to the slider of the x-axis linear module, the gripper includes a second hanging plate, a telescopic cylinder and a unloading cylinder, the telescopic end of the telescopic cylinder is fixedly connected to the second hanging plate, the telescopic end of the unloading cylinder passes through the through hole on the second hanging plate and abuts against the unloading plate, and the structure of the second hanging plate is the same as that of the first hanging plate.

The beneficial effects of the present invention are:

The present invention realizes full automation from the loading, cutting, pin insertion direction and final pin implantation of the injection mold through the cutting mold, transfer mechanism, needle removal clamping claw assembly, rotating assembly and implantation gripper assembly, without the need for manual intervention, greatly saving labor costs and improving work efficiency; and the implantation gripper assembly takes out the jig after the pin implantation and places it on the rotating assembly, and then puts the jig back to the transfer mechanism through the transfer mechanism, thereby realizing a cyclic operation and reducing the manual placement of the jig.

BRIEF DESCRIPTION OF THE DRAWINGS

Fig. 1 is a schematic diagram of the overall structure of the present invention;

FIG2 is a partial enlarged view of FIG1;

FIG3 is a schematic structural diagram of a needle removal clamp assembly;

FIG4 is a schematic diagram of the clamping jaw in FIG3 ;

Figure 5 is a schematic diagram of the transfer mechanism structure;

FIG6 is a schematic diagram of the disassembly of the transfer mechanism;

FIG7 is a partial enlarged view of A in FIG6 ;

FIG8 is a partial enlarged view of B in FIG6;

FIG9 is a partial enlarged view of C in FIG6 ;

FIG10 is a schematic diagram of the structure of a rotating assembly;

FIG11 is a top view of the rotating assembly;

FIG12 is a schematic diagram of the implantation gripper assembly implanting the pin into the injection mold;

FIG13 is a side view of FIG12;

FIG. 14 is a schematic diagram of the disassembly of the gripper and the fixture.

In the figure, 1-cutting mold, 2-needle removal clamping claw assembly, 21-mounting plate, 22-movable plate, 23-propelling cylinder, 24-clamping claw, 241-clamping plate one, 242-clamping plate two, 3-transfer mechanism, 31-driving module, 32-hanging plate one, 321-hanging rod, 33-rotating cylinder one, 4-rotating assembly, 41-turntable, 42-transfer plate, 421-positioning hole, 422-suction cup, 423-bump, 5-implanting gripper assembly, 51-grip, 511-hanging plate two, 512-telescopic cylinder, 513-unloading cylinder, 6-injection mold, 7-jig, 71-insertion plate, 72-unloading plate, 721-thrust pin, 722-spring, 73-slot, 74-hanging slot, 75-guide column, 76-limiting rod, 77-positioning column, 8-insertion pin.

DETAILED DESCRIPTION

The following describes the embodiments of the present invention by specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the following embodiments and features in the embodiments can be combined with each other without conflict.

Please refer to Figures 1 and 2, which show an automatic feeding device for a pin injection mold, including a cutting mold 1, a transfer mechanism 3, a pin removal clamping claw assembly 2, a rotating assembly 4, and an implanting claw assembly 5 for inserting a pin 8 into an injection mold 6, wherein the cutting mold 1 is used to cut the pin strip into individual pins 8, and at least 4 pins 8 can be cut out at the same time to improve work efficiency. At the same time, a pneumatic material shifting block is also provided at the feeding end of the cutting mold 1 to realize the self-transmission and automatic cutting of the pin strip. The pneumatic material shifting block and the cutting mold 1 in this embodiment are both prior art and will not be described in detail in this embodiment.

The transfer mechanism 3 includes a driving module 31 and a fixture 7 detachably mounted on the driving module 31 for placing a plurality of pins 8. The fixture 7 is provided with a plurality of slots 73 that cooperate with the pins 8. Preferably, a fixture 7 can hold at least 32 pins 8. The needle-removing clamping claw assembly 2 can move along the x-axis and the y-axis to insert the cut pins 8 into the slots 73 until the slots 73 on the fixture 7 are filled and enter the rotating assembly 4 process. The rotating assembly 4 includes a rotatable turntable 41 and a rotating member 42 disposed on the turntable 41. The transfer plate 42 for taking and placing the jig 7 and the driving cylinder (not shown in the drawings) for driving the transfer plate 42 to move, as shown in Figures 10 and 11, the transfer plate 42 removes the jig 7 with the pin 8 placed thereon from the transfer mechanism 3 and rotates it a certain angle to move it to the material taking position of the implantation gripper assembly 5, and the implantation gripper assembly 5 can move along the x-axis, y-axis and z-axis to move the jig 7 with the pin 8 on the transfer plate 42 to the front of the injection mold 6 and insert the pin 8 on the jig 7 into the injection mold 6 to complete the implantation of the pin 8.

Please refer to Figures 3 and 4, the needle removal clamp assembly 2 includes a linear module arranged along the x-axis, a mounting plate 21 arranged on a slider of the linear module, a clamp 24 slidably arranged on the mounting plate 21, and a propulsion cylinder 23 arranged along the y-axis direction. The mounting plate 21 is slidably connected to a movable plate 22 via a track, the output shaft of the propulsion cylinder 23 is fixedly connected to the movable plate 22, and the clamp 24 is placed on the movable plate 22. The movable plate 22 is pushed along the y-axis by the propulsion cylinder 23. The pin 8 on the cutting mold 1 is clamped in the axial direction, and the propulsion cylinder 23 drives the clamping jaw 24 to move back along the y-axis. The linear module drives the mounting plate 21 to move toward the transfer mechanism 3, and the pin 8 on the clamping jaw 24 is inserted into the fixture 7 through the propulsion cylinder 23; wherein, the clamping jaw 24 includes a clamping plate 1 241 and a clamping plate 242 arranged up and down, and one end of the cut pin 8 is clamped by the clamping plate 1 241 and the clamping plate 242, and then the other end of the pin 8 is inserted into the slot 73.

In the above embodiment, preferably, at least four clamping jaws 24 are provided, and the distances between the four clamping jaws 24 correspond to the distances between the pins 8 on the pin strip. The cutting mold 1 can cut at least four pins 8 at a time, and the clamping jaws 24 can clamp four pins 8 at a time and insert them into the slots 73, and only a part of the tip of the pin 8 enters the slot 73.

Please refer to Figures 5 and 6. The driving module 31 includes linear modules arranged along the x-axis and the y-axis respectively. The transfer mechanism 3 also includes a hanging plate 32 fixed on the slider of the y-axis linear module. The hanging plate 32 is provided with at least two hanging rods 321 for hanging the fixture 7. The fixture 7 includes a plug plate 71 and a stripper plate 72 connected to the plug plate 71 through a spring 722. The stripper plate 72 is further provided with a guide column 75 on the side facing the plug plate 71. The guide column 75 passes through a through hole on the plug plate 71 (not shown in the figure). The guide column 75 is used to increase the distance between the stripper plate 72 and the plug plate 71. The connection stability is improved by using spring 722 to ensure a certain gap between the unloading plate 72 and the plug plate 71, which is convenient for the subsequent unloading operation. The slot 73 is arranged on the plug plate 71, and the unloading plate 72 is placed between the hanging plate 32 and the unloading plate 72. The plug plate 71 is also provided with a hanging slot 74 corresponding to the two hanging rods 321. The fixture 7 is hung on the hanging plate 32 through the cooperation of the hanging slot 74 and the hanging rod 321, wherein the hanging rod 321 can be arranged at both ends of the surface of the hanging plate 32. At least two hanging rods 321 are used to prevent the fixture 7 from shaking, thereby improving stability. A plurality of limit rods 76 are provided on the side of the plug plate 71 with the pin 8.

In the above embodiment, preferably, the hanging groove 74 is a V-shaped hanging groove, and one end of one of the two hanging rods 321 is provided with an annular groove, as shown in Figure 8, and the annular groove is clamped on the edge of the V-shaped hanging groove 74 to prevent the fixture 7 from moving forward and backward, thereby ensuring that the distance between all pins 8 inserted into the slot 73 remains consistent; an inverted V-shaped clamping block cooperating with the V-shaped hanging groove 74 is provided on one end of the other hanging rod 321, as shown in Figure 9, which can further improve the stability of the fixture 7, so that the pin 8 can be accurately inserted into the slot 73, and the two hanging rods 321 respectively pass through the unloading plate 72 and cooperate with the hanging groove 74 to fix the fixture 7.

As shown in FIG. 5 , the pin 8 has a step structure. Since the step directions of the pins 8 after cutting are consistent, and according to the requirements of the injection mold 6 , two pins 8 are grouped together, and the step directions of the two pins 8 are opposite. Therefore, a rotating cylinder 33 is further provided between the slider on the Y-axis linear module and the hanging plate 32. The rotating cylinder 33 drives the hanging plate 32 to rotate 180 degrees. When a pin 8 in a step direction is inserted into the slot 73 , half of the slot 73 is left without the pin 8 inserted. The rotating cylinder 33 drives the fixture 7 to rotate 180 degrees, and then continues to complete the implantation of the pin 8 into the slot 73 .

The discharge plate 72 is provided with ejector pins 721 arranged one-to-one corresponding to the positions of the slots 73. One end of the ejector pin 721 is inserted into the slot 73. The ejector pin 721 is used to control the distance of the pin 8 inserted into the slot 73 to ensure consistency among multiple pins 8.

Please refer to Figures 10 and 1, the rotating component 4 also includes a slide rail arranged on the turntable 41 and a rotating cylinder (not shown in the figures) for driving the turntable 41 to rotate. The transfer plate 42 is slidably connected to the slide rail, and the output end of the driving cylinder is fixedly connected to the transfer plate 42. Two transfer plates 42 are arranged on the turntable 41, and the sliding tracks of the two transfer plates 42 are arranged at 90 degrees, and the two transfer plates 42 work in turn; specifically, first, a jig 7 with a pin 8 is hung on the two transfer plates 42, and the implantation gripper assembly 5 first takes away the jig 7 on the first transfer plate 42 and sends it into the injection mold 6 to complete the implantation of the pin 8, and then the implantation gripper assembly 5 takes back the empty jig 7 and hangs it on the first transfer plate 42, and the turntable 41 drives the transfer plate 42 to rotate 90 degrees. At this time, the second transfer plate 42 is aligned with the material taking position of the implantation gripper assembly 5, as shown in Figure 11. The hand claw assembly 5 repeats the above steps to take away the jig 7 with the pin 8, and then hangs the empty jig 7 on the second transfer plate 42 after the pin 8 is inserted. At this time, the jigs 7 on the two transfer plates 42 are all empty jigs 7. The turntable 41 drives the transfer plate 42 to rotate 180 degrees, so that the first transfer plate 42 is aligned with the hanging plate 32, and the first transfer plate 42 is driven by the driving cylinder to move and hang the empty jig 7 on the hanging plate 32. At this time, the empty jig 7 on the hanging plate 32 is loaded with the pin 8 through the needle removal clamping claw assembly 2. After loading, the first transfer plate 42 takes away the jig 7 with the pin 8, and the turntable 41 drives the transfer plate 42 to rotate 90 degrees again to align the second transfer plate 42 with the hanging plate 32. Repeat the above steps. The two transfer plates 42 can realize the cycle operation, reduce the waiting time for the pin 8 of the injection mold 6, and reduce the manual placement of the jig 7, thereby improving the work efficiency.

Among them, at least two positioning holes 421 and multiple suction cups 422 are provided on the transfer plate 42, and a side of the plug plate 71 with the pin 8 inserted is provided with a positioning column 77 corresponding to the positioning hole 421. When the transfer plate 42 takes and places the fixture 7 from the hanging plate 32, the positioning column 77 on the plug plate 71 is inserted into the positioning hole 421 on the transfer plate 42, and the plug plate 71 is sucked by the suction cup 422. The Y-axis linear module drives the hanging plate to move downward for a certain distance, and the fixture 7 falls off the hanging rod 321. The transfer plate 42 is moved by driving the cylinder to remove the entire fixture 7 from the hanging plate, and the transfer plate 42 is also provided with a protrusion 423 corresponding to the position of the slot 73 to protect the tip of the pin 8.

Please refer to Figures 12-14, the implant gripper assembly 5 includes linear modules arranged along the x-axis, y-axis and z-axis respectively and a gripper 51 connected to the slider of the x-axis linear module, the gripper 51 includes a second hanging plate 511, a telescopic cylinder 512 and a discharge cylinder 513, the telescopic end of the telescopic cylinder 512 is fixedly connected to the second hanging plate 511, the telescopic end of the discharge cylinder 513 passes through the through hole on the second hanging plate 511 and abuts on the discharge plate 72, the discharge plate 72 is mainly used to complete the unloading of the pin 8 on the fixture 7 when implanting the pin 8 into the injection mold 6, so that the pin 8 can be smoothly transplanted from the fixture 7 to the injection mold 6, and the structure of the second hanging plate 511 is the same as that of the first hanging plate 32, that is, the second hanging plate 511 is also provided with two hanging rods 321, and the two hanging rods 321 are also respectively provided with annular grooves and inverted V-shaped blocks.

Specific working process:

The cutting die 1 cuts the terminal strip into a plurality of individual pins 8, and the clamp 24 clamps four pins 8 at a time. The clamp 24 drives the pins 8 to move to the left. At the same time, the x-axis linear module on the transfer mechanism 3 drives the hanging plate 32 and the fixture 7 on the hanging plate 32 to move to the right until the clamp 24 is aligned with the fixture 7. The clamp 24 moves along the y-axis to insert four pins 8 into the slots 73 of the plug board 71 at a time. The clamp 24 repeats the above steps until half of the slots 73 are inserted into the pins 8. The rotating cylinder drives the hanging plate and the fixture 7 to rotate 180 degrees, and the clamp 24 continues to complete the pins 8 until the slots 73 on the plug board 71 are fully filled with pins 8.

The hanging plate 32 and the fixture 7 with the pin 8 are moved by the x-axis and y-axis linear modules on the transfer mechanism 3 until the fixture 7 is aligned with the material taking position of the transfer plate 42. The first transfer plate 42 on the turntable 41 moves toward the fixture 7 under the action of the driving cylinder so that the positioning column 77 on the plug plate 71 is inserted into the positioning hole 421 on the transfer plate 42, and the plug plate 71 is sucked by the suction cup 422. The y-axis linear mold on the transfer mechanism 3 moves a certain distance, and the fixture 7 falls off the hanging rod 321. The transfer plate 42 is moved by the driving cylinder to remove the entire fixture 7 from the hanging plate; then the turntable 41 rotates 90 degrees to make the first transfer plate 4 2 is aligned with the material taking position of the receiving claw 51. At this time, the empty fixture 7 on the second transfer plate 42 is facing the transfer mechanism 3. The hanging groove 74 of the plug plate 71 on the second transfer plate 42 is aligned with the hanging plate on the hanging plate. The transfer plate 42 drives the fixture 7 to move together by driving the flagpole until the fixture 7 is hung on the hanging plate. Repeat the above process of the fixture 7 to complete the insertion of the pin 8. At the same time, during this process, the second hanging plate 511 on the claw 51 moves. The hanging rod 321 on the second hanging plate 511 has the same principle as the hanging rod 321 on the first hanging plate 32. The second hanging plate 511 takes the fixture 7 with the pin 8 from the first transfer plate 41 through the cooperation of the hanging rod 321 and the hanging groove 74;

Then, by implanting the three linear modules of the x, y and z axes on the gripper assembly 5, the gripper 51 is moved so that the pin 8 on the fixture 7 is facing the to-be-implanted socket on the injection mold 6 (not shown in the attached figure), and the gripper 51 continues to move forward to implant one end of the pin 8 into the injection mold 6 until the limit rod 76 on the insert plate 71 abuts against the surface of the injection mold 6, and the gripper 51 stops moving; at this time, a part of the pin 8 is still inside the slot 73, and in order to prevent the pin 8 from being moved backward with the gripper 51 when it moves backward, causing poor implantation of the pin 8, therefore, the telescopic end of the discharge cylinder 513 on the gripper 51 extends out through the hanging plate 2 511 and abuts against the surface of the discharge plate 72, so that the ejector pin 721 on the discharge plate 72 always abuts against one end of the pin 8, and then the upper and lower telescopic cylinders 512 drive the hanging plate 2 and the hanging plate 73. The second insert plate 71 moves backward together until one end of the pin 8 exits the slot 73, and the unloading plate 72 does not move. At this time, the spring 722 is in a stretched state; after the pin 8 is implanted, the entire hand claw 51 is moved to drive the empty fixture 7 to retreat together, and the telescopic end of the unloading cylinder 513 retracts and no longer abuts against the unloading plate 72, and the unloading plate 72 and the ejector pin 721 are reset under the action of the spring 722; finally, the hand claw 51 drives the empty fixture 7 to move to the initial material picking position so that the empty fixture 7 is aligned with the first transfer plate 42 on the turntable 41, and the empty fixture 7 is placed on the transfer plate 42. The transfer plate 42 rotates 90 degrees so that the second transfer plate 42 with the pin 8 is aligned with the hand claw 51 again, and the above steps are repeated to complete the material picking, thereby realizing the whole process of material picking, loading and returning work cycle without manual intervention.

In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by the terms "up", "down", "left", "right", etc. are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

The above-mentioned embodiments only express the specific implementation of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention.

Claims (10)

1. An automatic feeding device for a pin injection mold, characterized in that it comprises a cutting mold (1), a transfer mechanism (3), a needle removal clamping claw assembly (2), a rotating assembly (4), and an implanting gripper assembly (5) for inserting a pin (8) into an injection mold (6), wherein the transfer mechanism (3) comprises a driving module (31) and a fixture (7) detachably mounted on the driving module (31) for placing a plurality of pins (8), wherein the fixture (7) is provided with a plurality of slots (73) for matching with the pins (8), and the needle removal clamping claw assembly (2) can be moved along the x-axis and the y-axis for inserting the cut pins (8) into the slots (73). 3), the rotating assembly (4) comprises a rotatable turntable (41), a transfer plate (42) arranged on the turntable (41) for taking and placing the jig (7), and a driving cylinder for driving the transfer plate (42) to move, the transfer plate (42) takes the jig (7) with the pin (8) placed thereon from the transfer mechanism (3) and rotates a certain angle to move it to the material taking position of the implanting gripper assembly (5), and the implanting gripper assembly (5) can move along the x-axis, y-axis and z-axis to move the jig (7) with the pin (8) on the transfer plate (42) to the front of the injection mold (6) and insert the pin (8) on the jig (7) into the injection mold (6). 2. An automatic feeding device for a pin injection mold according to claim 1, characterized in that the needle removal clamping claw assembly (2) includes a linear module arranged along the x-axis, a mounting plate (21) arranged on a slider of the linear module, a clamping claw (24) slidably arranged on the mounting plate (21), and a propulsion cylinder (23) arranged along the y-axis direction, the mounting plate (21) is slidably connected to a movable plate (22) through a track, the output shaft of the propulsion cylinder (23) is fixedly connected to the movable plate (22), and the clamping claw (24) is placed on the movable plate (22), and the clamping claw (24) includes a clamping plate 1 (241) and a clamping plate 2 (242) arranged up and down, and clamps one end of the cut pin (8) through the clamping plate 1 (241) and the clamping plate 2 (242). 3. An automatic feeding device for a pin injection mold according to claim 2, characterized in that there are at least four clamping jaws (24), and the distances between the four clamping jaws (24) correspond to the distances of the pins (8) on the pin (8) material strip. 4. An automatic feeding device for a pin injection mold according to claim 1, characterized in that the driving module (31) includes linear modules arranged along the x-axis and the y-axis respectively, and the transfer mechanism (3) also includes a hanging plate (32) fixed on the slider of the y-axis linear module, and the hanging plate (32) is provided with at least two hanging rods (321) for hanging the fixture (7). 5. An automatic feeding device for a pin injection mold according to claim 4, characterized in that the fixture (7) includes an insert plate (71) and a discharge plate (72) connected to the insert plate (71) by a spring (722), and a guide column (75) is provided on the side of the discharge plate (72) facing the insert plate (71), and the guide column (75) passes through the through hole on the insert plate (71), and the slot (73) is arranged on the insert plate (71), and the insert plate (71) is also provided with a hanging groove (74) corresponding to the two hanging rods (321), and a plurality of limit rods (76) are provided on the side of the insert plate (71) with the pin (8). 6. An automatic feeding device for a pin injection mold according to claim 5, characterized in that the hanging groove (74) is a V-shaped hanging groove, one end of one of the two hanging rods (321) is provided with an annular clamping groove, and one end of the other hanging rod (321) is provided with an inverted V-shaped clamping block that cooperates with the V-shaped hanging groove, and the two hanging rods (321) respectively pass through the unloading plate (72) and cooperate with the hanging groove (74) to fix the fixture (7). 7. According to claim 5, an automatic feeding device for a pin injection mold is characterized in that a rotating cylinder (33) is also provided between the slider on the Y-axis linear module and the hanging plate (32), and the rotating cylinder (33) drives the hanging plate (32) to rotate 180 degrees. The unloading plate (72) is provided with ejector pins (721) arranged one-to-one corresponding to the positions of the slots (73), and one end of the ejector pin (721) is inserted into the slot (73). 8. An automatic feeding device for a pin injection mold according to claim 1, characterized in that the rotating component (4) also includes a slide rail arranged on the turntable (41) and a rotating cylinder for driving the turntable (41) to rotate, the transfer plate (42) is slidably connected to the slide rail, the output end of the driving cylinder is fixedly connected to the transfer plate (42), and two transfer plates (42) are arranged on the turntable (41), and the sliding tracks of the two transfer plates (42) are arranged at 90 degrees. 9. An automatic feeding device for a pin injection mold according to claim 5, characterized in that at least two positioning holes (421) and a plurality of suction cups (422) are provided on the transfer plate (42), a side of the plug plate (71) on which the pin (8) is inserted is provided with a positioning column (77) corresponding to the positioning hole (421), and the transfer plate (42) is also provided with a protrusion (423) corresponding to the position of the slot (73) one by one. 10. An automatic feeding device for a pin injection mold according to claim 4, characterized in that the implant gripper assembly (5) includes linear modules arranged along the x-axis, y-axis and z-axis respectively and a gripper (51) connected to a slider of the x-axis linear module, the gripper (51) includes a second hanging plate (511), a telescopic cylinder (512) and a discharge cylinder (513), the telescopic end of the telescopic cylinder (512) is fixedly connected to the second hanging plate (511), the telescopic end of the discharge cylinder (513) passes through the through hole on the second hanging plate (511) and abuts against the discharge plate (72), and the structure of the second hanging plate (511) is the same as that of the first hanging plate (32).