Automatic punching device for copper-based material strip
The copper-based strip is punched, cut, and collected from bottom to top by a fully automated punching and cutting device, which solves the problems of accuracy and efficiency in capacitor lead cutting, realizes neat cutting of leads and reuse of frames, and improves capacitor production efficiency and quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ANHUI LUKE PHOTOELECTRIC TECH CO LTD
- Filing Date
- 2025-08-19
- Publication Date
- 2026-07-21
AI Technical Summary
Existing capacitor lead cutting technologies suffer from problems such as low precision, severe wear, inconsistent lengths, and uneven cuts. Furthermore, traditional methods are time-consuming and labor-intensive, making it difficult to meet the needs of large-scale production.
A fully automated punching device is used to punch and cut the copper base strip from bottom to top, and a negative pressure gripper is used to collect the pins. Multiple cylinders and punching devices are used to separate and collect the pins from the frame body.
This achieves neat pin cutting and consistent length, improving production efficiency, reducing collision damage during collection, improving product quality, and enabling the reuse of the frame body, thus reducing environmental pollution.
Smart Images

Figure CN224525743U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of capacitor lead manufacturing technology, and in particular to an automatic punching device for copper-based strip. Background Technology
[0002] Capacitor leads are the metal parts on a capacitor used to connect it to a circuit board. They are typically thin metal strips or pillars extending from the capacitor body, used to secure the capacitor to the circuit board and allow current to flow through it.
[0003] In the capacitor manufacturing process, lead cutting is an essential step. Traditional lead cutting methods mainly rely on manual operation or semi-automatic equipment. It is difficult to guarantee the accuracy of lead cutting during the cutting process, which can easily lead to problems such as lead wear, inconsistent length, bending or uneven cutting. This affects the overall quality and performance of the capacitor, reduces the service life of the capacitor, and the manual or semi-automatic cutting methods are time-consuming and labor-intensive, which cannot meet the needs of large-scale production and limits the improvement of production efficiency and capacity.
[0004] Automated punching equipment can punch and cut the formed pins on copper base strips. Existing automated punching equipment generally uses a punching blade that moves from top to bottom, with the base located at the bottom in a relatively fixed position. The connecting piece is cut by pressure punching. With the above method, the cut pins are not restricted and move downward under the action of gravity. The metal pins fall into the collection box irregularly, affecting the quality of the finished product and increasing the difficulty of subsequent processing. Utility Model Content
[0005] The purpose of this invention is to overcome the shortcomings of the existing technology and propose an automatic punching and cutting device for copper-based strips. This device uses a fully automated punching and cutting device to punch and cut the pin devices formed on the copper-based strips from bottom to top and collect them.
[0006] To achieve the above objectives, the present invention adopts the following technical solution:
[0007] An automatic punching device for copper-based strip is disclosed, used for punching copper-based strip. The copper-based strip is composed of multiple rectangular frame bodies, and a pin device is fixed inside the rectangular frame body. The device includes a winding device, a motor, and an operating table. A first punching device is provided on the operating table. The first punching device has an opening in the middle and a downward-facing blade is installed. A negative pressure gripper is provided at the upper end of the first punching device, and a first cylinder device is provided at the lower end of the first punching device. A punching carrier opposite to the blade is provided at the telescopic end of the first cylinder device. The copper-based strip moves forward under the traction of the traction device, controlling the pin device to move into the opening of the first punching device. Under the punching action of the first punching device and the punching carrier, the copper-based strip separates the pin device from the frame body, and the pin device moves from bottom to top and is collected by the negative pressure gripper.
[0008] Preferably, the copper-based strip is wound around a winding device, which releases the copper-based strip under the drive of a motor.
[0009] Preferably, the frame body is provided with circular holes around its perimeter to cooperate with the traction device.
[0010] Preferably, the traction device includes a positioning pin and a driving device for controlling the movement of the positioning pin, wherein the positioning pin interacts with the circular hole under the drive of the driving device.
[0011] Preferably, the driving device includes a first control cylinder and a second control cylinder. The positioning pin is disposed at the lower end of the first control cylinder. The first control cylinder moves up and down along a direction perpendicular to the copper base strip to control the positioning pin to coincide with the circular hole. The second control cylinder moves along a direction parallel to the copper base strip to control the first control cylinder to move back and forth repeatedly, thereby realizing the forward movement of the copper base strip.
[0012] Preferably, the distance that the second position control cylinder controls the first position control cylinder to move is the length of one frame body.
[0013] Preferably, it further includes a second stamping device, the lower end of which is equipped with a second cylinder device. The copper-based strip with the leads sheared off is separated from the frame body under the stamping action of the second stamping device and the second cylinder device. Compared with the prior art, the advantages of this invention are:
[0014] This system achieves fully automated collection of pins from bottom to top through punching and cutting, followed by collection by a negative pressure gripper. The cuts are neat and consistent in length, significantly improving production efficiency, reducing collisions during collection, lowering the damage rate, and enhancing product quality. The remaining frame body is also collected for reuse, reducing environmental pollution. Attached Figure Description
[0015] Figure 1 This is a three-dimensional structural diagram of the present invention.
[0016] Figure 2 This is a front view structural diagram of the punching platform of this utility model.
[0017] Figure 3 This is a top view of the punching platform of this utility model.
[0018] Figure 4 This is an enlarged structural schematic diagram of the copper-based strip of this utility model.
[0019] Figure 5 This is a three-dimensional structural diagram of the punching platform of this utility model.
[0020] Figure 6 This is an enlarged structural diagram of part A of the punching platform of this utility model.
[0021] In the diagram: 1. Winding device; 2. Copper-based strip; 201. Pin device; 100. Conductive body; 200. L-shaped connecting device; 300. Pin; 400. Circular hole; 202. Connecting piece; 203. Frame body; 3. Operating table; 4. First stamping device; 401. Blade; 5. First position control cylinder; 501. Positioning pin; 6. Second position control cylinder; 7. Second stamping device; 8. First cylinder device; 801. First cylinder body; 802. Bearing platform; 803. Punching carrier; 9. Second cylinder device; 10. Motor. Detailed Implementation
[0022] To make the above-mentioned objectives, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.
[0023] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly attached to the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.
[0024] See attached document Figure 1 -Appendix Figure 6An automatic punching device for copper-based strip is used to punch copper-based strip 2. The copper-based strip 2 is wound on a winding device 1. The winding device 1 releases the copper-based strip 2 under the action of a motor 10. The copper-based strip 2 passes through a first punching device 4 and a second punching device 7 in sequence under the traction of a traction device to punch and collect the lead device 201 and the frame body 203 of the capacitor.
[0025] The copper-based strip 2 here is a copper metal frame. The metal frame is long and thin, flexible, and can be wound around the winding device 1. The metal frame is composed of multiple rectangular frame bodies 203. The frame bodies 203 have round holes 400 around them. The lead device 201 for capacitor welding is connected in the middle through a connecting piece 202. The lead device 201 is composed of a conductive body 100 and a lead 300. The conductive body 100 and the lead 300 are connected by an L-shaped connecting device 200. When the lead device 201 is punched, the L-shaped connecting device 200 is grasped by a negative pressure gripper to separate it from the frame body 203 for the next step of product processing. The above-mentioned negative pressure gripper structure is a well-known structure commonly used by those skilled in the art and can be selected at will. It will not be described in detail here.
[0026] The specific operating platform 3 is equipped with a first stamping device 4, a first position control cylinder 5, a second position control cylinder 6, and a second stamping device 7. The copper base strip 2 is pushed forward by the first position control cylinder 5 and the second position control cylinder 6 to reach the second stamping device 7. The first cylinder device 4 and the second stamping device 7 are respectively equipped with a first cylinder device 8 and a second cylinder device 9. The bottom of the first cylinder device 8 is equipped with a first cylinder body 801. The upper part of the first cylinder body 801 is equipped with a bearing platform 802. The bearing platform 802 is equipped with a punching carrier 803. When in use, under the action of the first cylinder body 801, the punching carrier 803 is pushed upward and interacts with the first stamping device 4 to achieve punching. The working principle of the second cylinder device 9 is the same as that of the first cylinder device 8, so it will not be described in detail here.
[0027] The first stamping device 4 has a rectangular hole in the middle, and an inclined blade 401 is installed inside the hole. When a frame body 203 on the copper base strip 2 moves into the first stamping device 4, the punching carrier 803 is pushed upward by the action of the first cylinder body 801. By squeezing the blade 401 inside the first stamping device 4 from top to bottom, the joint between the pin device 201 and the connecting piece 202 is cut off, and the pin device 201 is lifted and collected by the negative pressure gripper. The collected pin devices 201 can not only be stacked neatly, but also greatly reduce the damage caused by collisions and improve the product success rate.
[0028] The copper-based strip 2 with the pins cut off by the device 201 is pushed forward into the second stamping device 7. Under the stamping action of the second cylinder device 9, a frame body 203 on the copper-based strip 2 is cut off and stored, making storage simpler and more convenient, and saving space.
[0029] Furthermore, a first control cylinder 5 and a second control cylinder 6 are provided between the first stamping device 4 and the second stamping device 7. The lower end of the first control cylinder 5 is equipped with two protruding positioning pins 501. The size and spacing of the positioning pins 501 are matched with the circular holes 400 on the frame body 203. In use, the first control cylinder 5 moves along a direction perpendicular to the copper base strip 2, so that the positioning pins 501 move downward and insert into the circular holes 400 to coincide with the circular holes 400, ensuring the stability of the pin device 201 in the first stamping device 4. When the pin device 201 in the first stamping device 4 is punched and separated and gripped away by negative pressure, the second control cylinder 6 moves along a direction parallel to the copper base strip 2 (the length direction of the copper base strip 2), driving the first control cylinder 5 to move forward a distance of one frame body 203. Then the first control cylinder 5 drives the positioning pins 501 to lift up and separate from the circular holes 400. Under the action of the second control cylinder 6, it returns to the starting point. The above operation is repeated to achieve the traction of the copper base strip 2.
[0030] When this utility model is in use, the copper base strip 2 moves forward under the action of the traction device, and the frame body 203 and the pin device 201 are separated under the action of the first stamping device 4. Under the action of the second stamping device 7, the copper base strip 2 is divided into small frame bodies 203 for storage.
[0031] The traction device consists of a first control cylinder 5 and a second control cylinder 6. The first control cylinder 5 moves along a direction perpendicular to the copper base strip 2, controlling the overlap and separation of the positioning pin 501 and the circular hole 400 on the frame body 203. The second control cylinder 6 moves along a direction parallel to the copper base strip 2, driving the first control cylinder 5 to move back and forth to achieve traction of the copper base strip 2.
[0032] The above structure enables fully automated collection of pin devices 201, resulting in neat and uniform cuts, which greatly improves production efficiency, reduces collisions during collection, lowers the damage rate, and improves product quality. The remaining frame body 203 is also collected for reuse, reducing environmental pollution.
[0033] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. An automatic punching device for copper-based strip, used for punching copper-based strip (2), wherein the copper-based strip (2) is composed of multiple rectangular frame bodies (203), and a pin device (201) is fixed inside the rectangular frame body (203), including a winding device (1), a motor (10) and an operating table (3), wherein a first punching device (4) is provided on the operating table (3), characterized in that: The first stamping device (4) has a hole in the middle and a downward-facing blade (401) is installed. The upper end of the first stamping device (4) is provided with a negative pressure gripper. The lower end of the first stamping device (4) is provided with a first cylinder device (8). The telescopic end of the first cylinder device (8) is provided with a punching carrier (803) opposite to the blade (401). The copper base strip (2) moves forward under the traction of the traction device and controls the pin device (201) to move into the hole of the first stamping device (4). Under the stamping action of the first stamping device (4) and the punching carrier (803), the copper base strip (2) achieves the separation of the pin device (201) from the frame body (203). The pin device (201) moves from bottom to top and is collected by the negative pressure gripper.
2. The automatic punching device for copper-based strip according to claim 1, characterized in that, The copper-based strip (2) is wound around the winding device (1), and the winding device (1) releases the copper-based strip (2) under the drive of the motor (10).
3. The automatic punching device for copper-based strip according to claim 1, characterized in that, The frame body (203) is provided with circular holes (400) around its perimeter to cooperate with the traction device.
4. The automatic punching device for copper-based strip according to claim 3, characterized in that, The traction device includes a positioning pin (501) and a drive device for controlling the movement of the positioning pin (501), wherein the positioning pin (501) interacts with the circular hole (400) under the drive of the drive device.
5. The automatic punching device for copper-based strip according to claim 4, characterized in that, The driving device includes a first control cylinder (5) and a second control cylinder (6). The positioning pin (501) is located at the lower end of the first control cylinder (5). The first control cylinder (5) moves up and down along a direction perpendicular to the copper base strip (2) to control the positioning pin (501) to coincide with the round hole (400). The second control cylinder (6) moves along a direction parallel to the copper base strip (2) to control the first control cylinder (5) to move back and forth repeatedly, so as to realize the forward movement of the copper base strip (2).
6. The automatic punching device for copper-based strip according to claim 5, characterized in that, The second position control cylinder (6) controls the first position control cylinder (5) to move a distance equal to the length of a frame body (203).
7. The automatic punching device for copper-based strip according to claim 1, characterized in that, It also includes a second stamping device (7), the lower end of which is provided with a second cylinder device (9). The copper base strip (2) whose pin device (201) has been cut off is separated from the frame body (203) under the stamping action of the second stamping device (7) and the second cylinder device (9).