Cutting device

Abstract

The present application relates to a pin cutting device for cutting the pins of electronic components, including a driving member, a lever mechanism, an upper cutting die, a lower cutting die, a sheet fixing seat and a base, wherein the sheet fixing seat is fixed on the base and is used to place electronic components; the lever mechanism is rotatably connected to the base, one end of the lever mechanism is transmission-connected to the driving member, and the other end is transmission-connected to the upper cutting die. Under the drive of the driving member, the lever mechanism rotates relative to the base and drives the movement of the upper cutting die; the upper cutting die includes a cutting knife, and the lower cutting die is provided with a cutting groove corresponding to the cutting knife. When the upper cutting die is close to the lower cutting die, the cutting knife enters the cutting groove to complete the pin cutting of the electronic components. The driving member provides driving force, and the lever mechanism is used to drive the upper cutting die to move and cut the pins. The structure is simple and the cost is low. It only needs to manually release the material, and the operation is simple, taking into account both processing efficiency and cost.

Description

Technical Field

[0001] The present application relates to the field of mechanical processing, and in particular to a cutting device. Background Art

[0002] When transistors are delivered, they generally have longer pins. During the processing, transistors need to be soldered to the soldering positions of the PCB board. Due to the requirements of different PCB boards, the required lengths of transistors are different, and the pin lengths of the incoming transistors often exceed the required length. Therefore, the transistors need to be trimmed. Traditionally, the cutting of transistor pins is completed by manpower and machines, or purely manual cutting. Both methods are inefficient. Fully automatic cutting can also be introduced on the processing line, but this will greatly increase the production cost, which is not advisable for factories. Therefore, how to achieve low-cost and efficient cutting of transistor pins is a key issue. Summary of the invention

[0003] Based on this, it is necessary to provide a pin cutting device to solve the problem of how to cut transistor pins at low cost and high efficiency.

[0004] A pin cutting device is used for cutting the pins of electronic components, comprising a driving member, a lever mechanism, an upper cutting die, a lower cutting die, a sheet fixing seat and a base, wherein:

[0005] The sheet fixing seat is fixed on the base and is used for placing electronic components;

[0006] The lever mechanism is rotatably connected to the base, one end of the lever mechanism is transmission-connected to the driving member, and the other end is transmission-connected to the upper cutting die. Under the drive of the driving member, the lever mechanism rotates relative to the base and drives the movement of the upper cutting die.

[0007] The upper cutting die includes a cutting knife, and the lower cutting die is provided with a cutting groove corresponding to the cutting knife. When the upper cutting die is close to the lower cutting die, the cutting knife enters into the cutting groove to complete the cutting of the pins of the electronic components.

[0008] In one embodiment, it further includes a limit pin, a first moving member and a second moving member, wherein:

[0009] The limit pin is fixedly connected to the upper cutting die and moves along with the movement of the upper cutting die;

[0010] The first moving member and the second moving member are movably connected to the sheet fixing seat. When the limiting pin moves following the upper cutting die, the first moving member and the second moving member are driven to move relative to the sheet fixing seat.

[0011] In one embodiment, a slide groove is provided on the sheet fixing seat, the cutter is arranged opposite to the slide groove, and an avoidance groove is provided at the bottom of the slide groove corresponding to the limit pin;

[0012] The first moving member is arranged in the slide groove and can slide in the slide groove, and a through groove is arranged on the first moving member, and the through groove is connected to the avoidance groove;

[0013] The second moving member is disposed in the through slot and is capable of sliding in the through slot.

[0014] In one embodiment, the limit pin has a preset length, and the length of the limit pin satisfies: the time when the limit pin is inserted into the avoidance groove is earlier than the time when the cutter enters the cutting groove.

[0015] In one of the embodiments, one end of the limiting pin close to the sheet fixing seat is configured to be wedge-shaped, and one end of the second movable member close to the limiting pin is configured to be a wedge-shaped surface.

[0016] In one of the embodiments, a baffle is further included, which is fixedly connected to the sheet fixing seat and covers the slide slot. The second movable member is at least partially located under the baffle, and the baffle is used to prevent the first movable member and the second movable member from escaping from the slide slot.

[0017] In one embodiment, it further comprises a first connecting rod assembly and a second connecting rod assembly, one end of the first connecting rod assembly is rotatably connected to the lever mechanism, and the other end is rotatably connected to the upper cutting die, and one end of the lever mechanism away from the driving member is connected to the upper cutting die through the first connecting rod assembly;

[0018] One end of the second connecting rod assembly is rotatably connected to the driving member, and the other end is rotatably connected to the lever mechanism. One end of the lever mechanism close to the driving member is connected to the driving member through the second connecting rod assembly.

[0019] In one embodiment, it also includes a first guide member, which is fixed on the base, the lower cutting die is provided with a first through hole corresponding to the first guide member, and the upper cutting die is provided with a second through hole corresponding to the first guide member, the first guide member passes through the first through hole and the second through hole, and when the driving member drives the upper cutting die to move, a part of the first guide member is always located in the second through hole.

[0020] In one of the embodiments, it also includes a discharge mechanism, which includes a discharge seat and a push rod. The discharge seat is fixed on the base and / or the sheet fixing seat, and the push rod is slidably connected to the discharge seat to push the electronic components away from the cutting position after cutting.

[0021] In one of the embodiments, a waste collection groove is provided on the base corresponding to the cutting groove, and the waste collection groove is connected to the cutting groove for collecting the cut pins; the waste collection groove is provided with an outlet, and the cut pins enter the waste collection groove and flow out from the outlet.

[0022] The above-mentioned cutting pin device provides driving force through a driving member, uses a lever mechanism to drive the upper cutting die to move, and cuts the pins. It has a simple structure and low cost. It only needs to put the material manually, and the operation is simple, taking into account both processing efficiency and cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is the structural schematic diagram of the incoming transistor;

[0024] Figure 2 This is a schematic structural diagram of a cutting device according to an embodiment of the present application;

[0025] Figure 3 This is a schematic diagram of the exploded structure of a cutting device according to an embodiment of the present application;

[0026] Figure 4 This is a schematic diagram of a partial exploded structure of a cutting device according to an embodiment of the present application;

[0027] Figure 5 This is a schematic diagram of the exploded structure of a cutting device according to another embodiment of the present application. DETAILED DESCRIPTION

[0028] In order to facilitate the understanding of the present application, the present application will be described more fully below with reference to the relevant drawings. The preferred embodiments of the present application are given in the drawings. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present application more thoroughly and comprehensively understood.

[0029] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0030] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0031] See also Figure 1 , Figure 1 The schematic diagram of the structure of a transistor 800 is shown as an example. The transistor 800 includes a transistor body 810 and a pin 820, and the pin 820 is led out from the transistor body 810. When the processing plant receives the incoming transistor 800, multiple transistors 800 are fixed to each other and arranged in a row. For example, two transistors 800 are fixed by a thin and crisp sheet structure. When separating the transistors 800, it is only necessary to gently bend the transistors 800. When the material is received, the pin 820 of the transistor 800 is straight and has a long length. It can be mounted on the PCB board after cutting.

[0032] See also Figure 2 , Figure 2 The structural schematic diagram of a pin cutting device 10 according to an embodiment of the present application is exemplarily shown. The pin cutting device 10 is used for cutting pins of electronic components. The electronic components are not limited to the aforementioned transistors, but may also be other components such as capacitors.

[0033] like Figure 2 As shown, the cutting device 10 includes a driving member 101, a lever mechanism 102, an upper cutting die 103, a lower cutting die 104 and a sheet fixing seat 105. The driving member 101 drives the upper cutting die 103 to move through the lever mechanism 102, and lifts or drops the upper cutting die 103. Electronic components such as transistors are placed on the sheet fixing seat 105, and when the electronic components are placed on the sheet fixing seat 105, the pins of the electronic components at least partially extend between the upper cutting die 103 and the lower cutting die 104. When the upper cutting die 103 approaches the lower cutting die 104, the pins located between the upper cutting die 103 and the lower cutting die 104 are cut.

[0034] The driving member 101 is used to provide driving force. In some embodiments, the driving member 101 can be a cylinder to achieve low-cost driving. Of course, the lever mechanism 102 can also be driven by a driver such as a motor or a steering gear.

[0035] The driving member 101 is fixed at a preset position. For example, the foot cutting device 10 further includes a base 106, and the driving member 101 is fixed on the base 106. Figure 2In the illustrated embodiment, a fixing column 161 is disposed on the base 106 , and the driving member 101 is fixed on the fixing column 161 to fix the driving member 101 at a higher position, thereby providing sufficient space for the movement of the lever mechanism 102 .

[0036] Please continue reading Figure 3 and Figure 4 , the driving member 101 is transmission-connected to the lever mechanism 102, and the lever mechanism 102 is rotationally connected to the base 106. Under the drive of the driving member 101, the lever mechanism 102 rotates relative to the base 106 and drives the movement of the upper cutting die 103. In one or more embodiments, a reference member 163 is provided on the base 106, and the lever mechanism is rotationally connected to the reference member 163, and one end of the lever mechanism is transmission-connected to the driving member 101, and the other end is rotationally connected to the lower cutting die 104. When the driving member 101 is working, one end of the lever mechanism is driven to move. Since the middle part of the lever mechanism 102 is fixed and rotationally connected to the reference member 163, based on the lever principle, the movement direction of the end of the lever mechanism 102 away from the driving member 101 is opposite to the movement direction of the end close to the driving member 101, thereby driving the upper cutting die 103 to move.

[0037] exist Figure 4 In the illustrated embodiment, a groove 163a is provided on the reference member 163, and ears 1631 are formed on both sides of the groove 163a. ​​The lever mechanism is rotatably connected to the ears 1631, so that the groove 163a provides space for the movement of the lever mechanism 102. For example, a first small hole is provided on the ear 1631, and a first convex column is provided on the lever mechanism 102, and the first convex column is embedded in the first small hole, so that the lever mechanism 102 is rotatably connected to the reference member 163. In some embodiments, the groove 163a can completely penetrate the reference member 163, so that the reference member 163 includes two independent ears 1631, and the two ears 1631 are fixed to the base 106.

[0038] The upper cutting die 103 is transmission-connected to one end of the lever mechanism 102 away from the driving member 101. In one or more embodiments, the cutting device 10 further includes a first connecting rod assembly 107, and one end of the lever mechanism 102 away from the driving member 101 is connected to the upper cutting die 103 via the first connecting rod assembly 107. By providing the first connecting rod assembly 107, the upper cutting die 103 can be driven more flexibly.

[0039] Specifically, one end of the first connecting rod assembly 107 is rotatably connected to the lever mechanism 102, and the other end is rotatably connected to the upper cutting die 103. Thus, the first connecting rod assembly 107 can rotate relative to the lever mechanism 102 and relative to the upper cutting die 103, thereby avoiding the hard driving of the upper cutting die 103 by the lever mechanism 102. The connecting rod mechanism provides a buffer, which can make the upper cutting die 103 move along a straight line instead of an arc, which is more conducive to cutting pins.

[0040] exist Figure 4 In the illustrated embodiment, the first connecting rod assembly 107 includes two first connecting rods 171, which are respectively located on both sides of the lever mechanism 102 and are rotatably connected to the lever mechanism 102. The two first connecting rods 171 can transmit the driving force more evenly and stably.

[0041] See also Figure 4 In some embodiments, a second connecting rod assembly 108 may be further included, and one end of the lever mechanism 102 close to the driving member 101 is connected to the driving member 101 through the second connecting rod assembly 108. For example, similar to the first connecting rod assembly 107, one end of the second connecting rod assembly 108 is rotatably connected to the driving member 101, and the other end is rotatably connected to the lever mechanism 102.

[0042] See also Figure 3 and Figure 4 The upper cutting die 103 includes a cutting portion 131 and a connecting portion 133. The cutting portion 131 is fixedly connected to the connecting portion 133. The cutting portion 131 is used to cooperate with the lower cutting die 104 to complete the cutting of the pins. The connecting portion 133 is rotatably connected to the first connecting rod assembly 107. For example, the connecting portion 133 is provided with a first convex portion 1331, and the two first connecting rods 171 are respectively located on both sides of the first convex portion 1331 and are rotatably connected to the first connecting rod 171.

[0043] The cutting portion 131 is provided with a cutter 1311 to cut the pins by the cutter 1311. In a specific embodiment, the cutting portion 131 includes a cutting plate 1313 and the cutter 1311, the connecting portion 133 is arranged on the cutting plate 1313, and the cutter 1311 is arranged on a side of the cutting plate 1313 away from the connecting portion 133, so that the lever mechanism 102 drives the connecting portion 133 to move, and then drives the cutter 1311 to move.

[0044] See also Figure 2 and Figure 3, the lower cutting die 104 is fixed on the base 106, and during the cutting process, the lower cutting die 104 remains stationary relative to the base 106. Therefore, the lower cutting die 104 is fixed, and the upper cutting die 103 moves, so that stable and accurate cutting can be achieved. The lower cutting die 104 is provided with a cutting groove 104a corresponding to the cutter 1311. When the upper cutting die 103 approaches the lower cutting die 104, the cutter 1311 enters the cutting groove 104a. At this time, if the pins of the electronic components are suspended on the cutting groove 104a, the cutter 1311 cuts off the pins when entering the cutting groove 104a.

[0045] See also Figure 3 and Figure 4 In one or more embodiments, the cutting device 10 further includes a first guide 109, which is fixedly connected to at least one of the base 106 and the lower cutting die 104, and is used to provide guidance for the movement of the upper cutting die 103, so that the upper cutting die 103 moves along the track defined by the first guide 109. For example, in the illustrated embodiment, the first guide 109 is fixed to the base 106, the lower cutting die 104 is provided with a first through hole 104b corresponding to the first guide 109, and the upper cutting die 103 is provided with a second through hole 103a corresponding to the first guide 109, the first guide 109 passes through the first through hole 104b and the second through hole 103a, and in the process of the driving member 101 driving the upper cutting die 103 to move, the first guide 109 is always partially located in the second through hole 103a. In other words, the first guide 109 always provides a limiting guide function for the upper cutting die 103.

[0046] The blank holder 105 is fixed on the base 106 and is used to place electronic components. When the electronic components are placed on the blank holder 105, at least part of the pins are located on the lower cutting die 104 and suspended above the cutting groove 104a of the lower cutting die 104. When the electronic components are placed on the blank holder 105, if the electronic components are not fixed, the electronic components may be displaced due to the force during the pin cutting process. Therefore, in order to ensure the cutting accuracy, it is better to fix the electronic components during the cutting process.

[0047] See also Figure 5 In one or more embodiments, the cutting device 10 may further include a limit pin 110, a first movable member 111 and a second movable member 112. The limit pin 110 is fixedly connected to the upper cutting die 103 and moves along with the movement of the upper cutting die 103. The first movable member 111 and the second movable member 112 are movably connected to the material fixing seat 105. When the limit pin 110 moves along with the upper cutting die 103, the first movable member 111 and the second movable member 112 are driven to move relative to the material fixing seat 105.

[0048] In one embodiment, a slide groove 105a is provided on the sheet fixing seat 105, and the cutter 1311 is arranged opposite to the slide groove 105a. The bottom of the slide groove 105a is provided with an avoidance groove 105b corresponding to the limit pin 110. The first moving member 111 is arranged in the slide groove 105a and can slide in the slide groove 105a. The first moving member 111 is provided with a through groove 111a, and the through groove 111a is connected to the avoidance groove 105b. The second moving member 112 is arranged in the through groove 111a and can slide in the through groove 111a.

[0049] When the upper cutting die 103 moves toward the direction approaching the lower cutting die 104, the limit pin 110 moves toward the direction approaching the sheet fixing seat 105, and passes through the through slot and enters the avoidance slot 105b. When the limit pin 110 passes through the through slot, it drives the second moving member 112 to move in the through slot. When the second moving member 112 moves to a position abutting against the side wall of the through slot, the second moving member 112 will not be able to move relative to the first moving member 111. Therefore, the second moving member 112 drives the first moving member 111 to move, so that the first moving member 111 and the second moving member 112 slide along the slide slot 105a together, and the electronic components are placed corresponding to the slide slot 105a. When the first moving member 111 moves to a position in contact with the electronic components, the electronic components are clamped between the first moving member 111 and the lower cutting die 104. Taking a transistor as an example, the transistor body has a large volume, while the pins are relatively thin, and a shoulder is formed on the side where the pins are set. Therefore, when the electronic component is placed on the sheet fixing seat 105, the pin side of the transistor body abuts against the lower die 104, so that when the first moving member 111 slides out of the slide groove 105a, it abuts against the transistor body from the side of the transistor body away from the pins, so that the transistor body is clamped and fixed without displacement. Thus, the transistor is fixed.

[0050] In some of the embodiments, a connecting rod 113 is further included, and the limiting pin 110 is fixedly connected to the upper cutting die 103 via the connecting rod 113 .

[0051] In one or more embodiments, the stop pin 110 has a preset length, and the length of the stop pin 110 satisfies: the time when the stop pin 110 is inserted into the avoidance groove 105b is earlier than the time when the cutter 1311 enters the cutting groove 104a. In this way, the electronic components are fixed first and then cut, which is conducive to improving the cutting accuracy.

[0052] One end of the limit pin 110 close to the sheet fixing seat 105 can be set to a wedge shape, and the end of the second movable member 112 close to the limit pin 110 can also be set with a wedge-shaped surface, which can provide a guide for the insertion of the limit pin 110 and avoid hard contact between the limit pin 110 and the second movable member 112. Even if the position of the second movable member 112 deviates slightly, the second movable member 112 can be moved away through the wedge-shaped contact, so that the limit pin 110 can be inserted into the avoidance groove 105b.

[0053] In one or more embodiments, a baffle 114 is further included, which is fixedly connected to the sheet fixing seat 105 and covers the slide groove 105a. The second movable member 112 is at least partially located under the baffle 114. The baffle 114 is used to prevent the first movable member 111 and the second movable member 112 from escaping from the slide groove 105a.

[0054] See also Figure 2 In one or more embodiments, a material discharge mechanism 115 is further included, and the material discharge mechanism 115 includes a material discharge seat 1151 and a push rod 1153. The material discharge seat 1151 is fixed on the base 106 and / or the sheet fixing seat 105, and the push rod 1153 is slidably connected to the material discharge seat 1151, and is used to push the electronic components away from the cutting position after cutting to facilitate material removal.

[0055] See also Figure 3 In one or more embodiments, a waste collection groove 106a is provided on the base 106 corresponding to the cut groove 104a, and the waste collection groove 106a is connected to the cut groove 104a for collecting the cut pins. The waste collection groove 106a is provided with an outlet, and the cut pins enter the waste collection groove 106a and flow out from the outlet.

[0056] When using the above-mentioned pin cutting device 10 to cut the pins of electronic components, first place the electronic components at the opening of the slide slot 105a, at the position corresponding to the cutter 1311. After the electronic components are placed, the pins are partially suspended above the cutter 1311. Then, the first moving member 111 can be gently pushed to make the first moving member abut against the electronic components. Then, the driving member 101 starts to work, and the driving force provided causes the end of the lever mechanism 102 away from the upper cutting die 103 to move upward. Based on the lever principle, the end of the lever mechanism 102 close to the upper cutting die 103 moves downward, driving the upper cutting die 103 to move close to the lower cutting die 104. When the upper cutting die 103 moves down to the preset position, the limit pin 110 is inserted into the avoidance groove 105b, and in the process of inserting into the avoidance groove 105b, the first moving member 111 and the second moving member 112 are driven to move, and the electronic components are tightly pressed against by the first moving member 111 and the second moving member 112, so that the electronic components are clamped and fixed between the first moving member 111 and the lower cutting die 104. The upper cutting die 103 continues to move down, and the cutter 1311 enters the cutter 1311 to cut the pins.

[0057] It can be seen that the above-mentioned cutting device 10 provides driving force through the driving member 101, and uses the lever mechanism 102 to drive the upper cutting die 103 to move, so as to cut the pins. It has a simple structure and low cost. It only needs to put the material manually, and the operation is simple, taking into account both processing efficiency and cost.

[0058] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0059] The above-mentioned embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application shall be subject to the attached claims.

Claims

1. A pin cutting device for cutting pins of electronic components, characterized in that: It includes a driving part, a lever mechanism, an upper cutting die, a lower cutting die, a sheet fixing seat and a base, wherein: The sheet fixing seat is fixed on the base and is used for placing electronic components; The lever mechanism is rotatably connected to the base, one end of the lever mechanism is transmission-connected to the driving member, and the other end is transmission-connected to the upper cutting die. Under the drive of the driving member, the lever mechanism rotates relative to the base and drives the movement of the upper cutting die. The upper cutting die includes a cutting knife, and the lower cutting die is provided with a cutting groove corresponding to the cutting knife. When the upper cutting die is close to the lower cutting die, the cutting knife enters the cutting groove to complete the cutting of the pins of the electronic components; It also includes a limit pin, a first moving member and a second moving member, wherein the limit pin is fixedly connected to the upper cutting die and moves following the movement of the upper cutting die; the first moving member and the second moving member are movably connected to the sheet fixing seat, and when the limit pin moves following the movement of the upper cutting die, the first moving member and the second moving member are driven to move relative to the sheet fixing seat; A slide groove is arranged on the sheet fixing seat, the cutter is arranged opposite to the slide groove, and an avoidance groove is arranged at the bottom of the slide groove corresponding to the limit pin; the first movable member is arranged in the slide groove and can slide in the slide groove, and a through groove is arranged on the first movable member, and the through groove is connected to the avoidance groove; the second movable member is arranged in the through groove and can slide in the through groove.

2. The cutting device according to claim 1, characterized in that: The limit pin has a preset length, and the length of the limit pin satisfies: the time when the limit pin is inserted into the avoidance groove is earlier than the time when the cutter enters into the cutting groove.

3. The cutting device according to claim 1, characterized in that: One end of the limiting pin close to the sheet fixing seat is arranged in a wedge shape, and one end of the second moving member close to the limiting pin is arranged with a wedge-shaped surface.

4. The cutting device according to claim 1, characterized in that: It also includes a baffle, which is fixedly connected to the sheet fixing seat and covers the slide slot. The second movable member is at least partially located below the baffle, and the baffle is used to prevent the first movable member and the second movable member from leaving the slide slot.

5. The cutting device according to claim 1, characterized in that: It also includes a first connecting rod assembly and a second connecting rod assembly, one end of the first connecting rod assembly is rotatably connected to the lever mechanism, and the other end is rotatably connected to the upper cutting die, and one end of the lever mechanism away from the driving member is connected to the upper cutting die through the first connecting rod assembly; One end of the second connecting rod assembly is rotatably connected to the driving member, and the other end is rotatably connected to the lever mechanism. One end of the lever mechanism close to the driving member is connected to the driving member through the second connecting rod assembly.

6. The cutting device according to claim 1, characterized in that: It also includes a first guide member, which is fixed on the base, the lower cutting die is provided with a first through hole corresponding to the first guide member, and the upper cutting die is provided with a second through hole corresponding to the first guide member, the first guide member passes through the first through hole and the second through hole, and when the driving member drives the upper cutting die to move, a part of the first guide member is always located in the second through hole.

7. The cutting device according to claim 1, characterized in that: It also includes a material discharge mechanism, which includes a material discharge seat and a material pusher. The material discharge seat is fixed on the base and / or the sheet fixing seat, and the material pusher is slidably connected to the material discharge seat for pushing the electronic components away from the cutting position after cutting.

8. The cutting device according to claim 1, characterized in that: A waste collection groove is provided on the base corresponding to the cutting groove, and the waste collection groove is connected to the cutting groove and is used to collect the cut pins; the waste collection groove is provided with an outlet, and the cut pins enter the waste collection groove and flow out from the outlet.

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