A punch press for alloy resistors

Abstract

This utility model provides a punch press for alloy resistors, comprising: a punching device, a guiding assembly, and a punching assembly arranged sequentially along the strip conveying path. The punching assembly includes a base, a lifting plate, a cutter, and a hydraulic cylinder. The cutter is mounted on the lifting plate, and the base has a discharge port. The hydraulic cylinder drives the cutter to extend into or away from the discharge port to cut the strip. The guiding assembly includes a guide seat, a U-shaped slider, a clamping plate, and a connecting rod. The U-shaped slider is slidably mounted in the guide seat and has a limiting cavity. The strip passes through the limiting cavity and enters the discharge port. The clamping plate is rotatably mounted in the limiting cavity. The two ends of the connecting rod are connected to the lifting plate and the clamping plate, respectively. The U-shaped slider and the clamping plate cooperate to guide the strip into the discharge port when the lifting plate rises and reset when the lifting plate falls, intermittently conveying the strip to ensure that the width of the resistor obtained in each punching is consistent.

Description

Technical Field

[0001] This utility model relates to the field of alloy resistor processing, and in particular to a punch press for alloy resistors. Background Technology

[0002] like Figure 1 The alloy resistor 20 shown is processed by punching the strip with a punch press to form a protrusion 21 in the middle of the strip, and the punched part needs to be cut in a subsequent station.

[0003] Existing punch presses feed strip material through a roller pressing structure. Rollers are arranged on both sides of the strip material, and the material is fed by the rolling pressure generated by the rotation of the rollers.

[0004] However, when cutting the strip, it is necessary to control the extension length of the strip to ensure that the width of the resulting 20-strength resistor particles is consistent and to improve the flatness of the cut surface. The strip should remain stationary when the cutter falls, which requires intermittent feeding of the strip. However, the existing equipment uses a roller to provide power to drive the strip feeding. When the roller stops, a small amount of reverse rotation will occur, which can easily lead to differences in the width of the resulting 20-strength resistor particles.

[0005] Since the existing feeding structure is not suitable for the integrated punching and stamping production process, it is necessary to optimize the existing punching equipment. Utility Model Content

[0006] The purpose of this invention is to overcome the shortcomings of the prior art and provide a punch press for alloy resistors, which improves the feeding accuracy of the strip, ensures the uniformity of the size of the resistor particles obtained by punching, and improves the processing accuracy of alloy resistors.

[0007] The objective of this utility model is achieved through the following technical solution:

[0008] A punch press for alloy resistors includes: a punching device, a material guiding assembly, and a punching assembly arranged sequentially along a strip conveying path;

[0009] The punching assembly includes a base, a lifting plate, a cutter, and a hydraulic cylinder. The cutter is mounted on the lifting plate, and the base has a discharge port. The hydraulic cylinder is used to drive the cutter to extend into or away from the discharge port to cut the strip material.

[0010] The material guiding assembly includes a guide seat, a U-shaped slider, a clamping plate, and a connecting rod. The U-shaped slider is slidably disposed in the guide seat and has a limiting cavity. The material passes through the limiting cavity and enters the discharge port. The clamping plate is rotatably disposed in the limiting cavity. The two ends of the connecting rod are respectively connected to the lifting plate and the clamping plate.

[0011] When the lifting plate rises, it pulls the clamping plate to flip towards the direction of the conveyor belt and drags the U-shaped slider towards the discharge port; when the lifting plate falls, it pushes the clamping plate to flip away from the conveyor belt and drags the U-shaped slider away from the discharge port.

[0012] In one embodiment, the connecting rod includes a body and an adjusting block. The body has an adjusting groove, the adjusting block is slidably disposed in the adjusting groove, the adjusting block is provided with a locking screw, and the adjusting block is rotatably connected to the clamping plate.

[0013] In one embodiment, the U-shaped slider has a clearance groove.

[0014] In one embodiment, a stop plate is provided in the limiting cavity, and the stop plate is located on the side of the clamp plate away from the material.

[0015] In one embodiment, the cutter is provided with two anti-deviation protrusions that extend into the discharge port, and the distance between the two anti-deviation protrusions is greater than the width of the strip material.

[0016] In one embodiment, the inner wall of the guide seat is provided with a guide groove, and the outer wall of the U-shaped slider is provided with a sliding part that matches the guide groove.

[0017] In one embodiment, the distance between the clamping plate and the limiting cavity is greater than the thickness of the strip.

[0018] In one embodiment, a material basin is provided below the discharge port.

[0019] In one embodiment, the stamping device includes a base, a lower die, and a press head, wherein the strip material is fitted with the lower die, and the base is used to drive the press head to stamp the strip material.

[0020] In one embodiment, the stamping device further includes a guide rail for guiding the strip into the stamping device.

[0021] The aforementioned punch press for alloy resistors has the following beneficial effects:

[0022] 1. The U-shaped slider and clamping plate work together to pull the material belt into the discharge port when the lifting plate rises, and reset when the lifting plate falls, so as to intermittently convey the material belt and ensure that the width of the resistance obtained by each punching is consistent.

[0023] 2. The feeding power of the material belt comes from the lifting action of the lifting plate, which will not interfere with the cutter, so that the punching action is carried out in an orderly manner. Attached Figure Description

[0024] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model 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.

[0025] Figure 1 This is a schematic diagram of the resistor structure;

[0026] Figure 2 A schematic diagram of a punch press used for alloy resistors;

[0027] Figure 3 This is a schematic diagram of the punching assembly.

[0028] Figure 4 This is a schematic diagram showing the interaction between the punching assembly and the material guiding assembly;

[0029] Figure 5 This is a schematic diagram showing the disassembly of the punching component;

[0030] Figure 6 This is a diagram showing the interaction between the U-shaped slider and the clamping plate during the feeding of the material belt.

[0031] Figure 7 This is a diagram showing the interaction between the U-shaped slider and the clamping plate during material cutting.

[0032] Reference numerals: 10. Punch press for alloy resistors; 1. Strip material; 100. Punching device; 110. Machine base; 120. Lower die; 130. Press head; 140. Guide rail; 200. Guide assembly; 210. Guide seat; 211. Guide groove; 220. U-shaped slider; 221. Limiting cavity; 222. Clearance groove; 223. Stop plate; 224. Sliding part; 230. Clamping plate; 240. Connecting rod; 241. Body; 2411. Adjustment groove; 242. Adjustment block; 2421. Locking screw; 300. Punching assembly; 310. Base; 311. Discharge port; 320. Lifting plate; 330. Cutting knife; 331. Anti-deviation convex eaves; 340. Hydraulic cylinder; 350. Material basin. Detailed Implementation

[0033] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. The drawings illustrate preferred embodiments of this utility model. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this utility model.

[0034] 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.

[0035] 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 is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0036] Please see Figure 2 This utility model provides a punch press 10 for alloy resistors, which includes: a punching device 100, a material guiding assembly 200, and a punching assembly 300 arranged sequentially along the conveying path of the strip 1. The punching device 100 is used to punch a protrusion 21 at the center of the strip 1, the punching assembly 300 cuts off the punched portion of the strip 1, and the material guiding assembly 200 is responsible for guiding the strip 1 from the punching device 100 into the punching assembly 300.

[0037] Please see Figure 3 and Figure 4 The punching assembly 300 includes a base 310, a lifting plate 320, a cutter 330, and a hydraulic cylinder 340. The cutter 330 is mounted on the lifting plate 320. The base 310 has a discharge port 311. When the hydraulic cylinder 340 drives the lifting plate 320 to descend, the cutter 330 extends into the discharge port 311 and cuts off the portion of the material belt 1 that extends into the discharge port 311. When the hydraulic cylinder 340 retracts, the cutter 330 leaves the discharge port 311 along with the lifting plate 320, making room for the material belt 1 to enter the discharge port 311.

[0038] Please see Figure 4 and Figure 5 The material guiding assembly 200 includes a guide seat 210, a U-shaped slider 220, a clamping plate 230, and a connecting rod 240. The U-shaped slider 220 is slidably disposed in the guide seat 210 and has a limiting cavity 221. After the material passes through the limiting cavity 221, it enters the discharge port 311. The clamping plate 230 is rotatably disposed in the limiting cavity 221. The two ends of the connecting rod 240 are respectively connected to the lifting plate 320 and the clamping plate 230.

[0039] Please see Figure 6 and Figure 7When the lifting plate 320 rises, the traction clamp 230 flips towards the direction of the material and drags the U-shaped slider 220 towards the discharge port 311; when the lifting plate 320 falls, it pushes the clamp 230 to flip away from the material and drags the U-shaped slider 220 away from the discharge port 311.

[0040] The principle of the intermittent feeding of the material guide assembly 200 is as follows:

[0041] Please see Figure 6 The material strip 1 passes through the limiting cavity 221, and at this time, the material strip 1 is located between the inner wall of the limiting cavity 221 and the clamping plate 230. Since the two ends of the connecting rod 240 are connected to the lifting plate 320 and the clamping plate 230 respectively, when the lifting plate 320 rises, it will generate a pulling force to drag the clamping plate 230 upward and flip it. The clamping plate 230 and the inner wall of the limiting cavity 221 cooperate to clamp the material strip 1. After the clamping plate 230 can no longer flip, the lifting plate 320 continues to rise and drags the U-shaped slider 220 along the guide seat 210 to the position of the discharge port 311. During this process, the material strip 1 moves towards the discharge port 311, and the moving distance is the same as the sliding distance of the U-shaped slider 220. When the lifting plate 320 rises, the cutter 330 moves away from the discharge port 311. That is, when the cutting component 300 retracts the cutter 330, it drives the material strip 1 to feed.

[0042] Please see Figure 7 When the lifting plate 320 descends, the cutter 330 enters the discharge port 311 and cuts off the portion of the material belt 1 that extends into the discharge port 311. During this process, the lifting plate 320 descends, and the connecting rod 240 generates a thrust to drive the clamping plate 230 to flip away from the material belt 1, that is, the clamping plate 230 releases the material belt 1. After the clamping plate 230 returns to its original position, the lifting plate 320 continues to descend, pushing the U-shaped slider 220 away from the discharge port 311 through the connecting rod 240 until it returns to its original position, preparing for the next feeding.

[0043] As can be seen from the above process, the main components of the material guide assembly 200 that drive the intermittent feeding of the material strip 1 are the U-shaped slider 220 and the clamping plate 230. The lifting plate 320 is connected to the clamping plate 230 through the connecting rod 240, and the power of the lifting plate 320 during the lifting process is converted into the power to drive the U-shaped slider 220 to reciprocate and translate. The material guide assembly 200 and the punching assembly 300 are linked together. On the one hand, the intermittent feeding of the material strip 1 can be realized, avoiding the conflict between the feeding action of the material strip 1 and the cutting action of the cutter 330. On the other hand, the two share a power source, which can simplify the punching machine structure and facilitate later maintenance.

[0044] Please see Figure 5In one embodiment, the connecting rod 240 includes a body 241 and an adjusting block 242. The body 241 has an adjusting groove 2411. The adjusting block 242 is slidably disposed in the adjusting groove 2411. The adjusting block 242 is provided with a locking screw 2421. The adjusting block 242 is rotatably connected to the clamping plate 230. The locking screw 2421 is used to lock the adjusting block 242. By adjusting the position of the resistance and distance adjustment block 242 within the distance adjustment groove 2411, the distance between the connecting end of the connecting rod 240 and the lifting plate 320 and the connecting end of the connecting rod 240 and the clamping plate 230 can be increased or decreased, thereby adjusting the translation distance of the U-shaped slider 220 during the feeding action to achieve the purpose of adjusting the width of the resistor 20. For example, when it is necessary to increase the width of the resistor 20, the distance adjustment block 242 is adjusted towards the lifting plate 320, so that the U-shaped slider 220 can obtain a longer translation distance during the lifting process of the lifting plate 320, and the feeding amount of the material belt 1 is also larger. Conversely, when it is necessary to decrease the width of the resistor 20, the distance adjustment block 242 is adjusted away from the lifting plate 320.

[0045] Please see Figure 5 In one embodiment, the U-shaped slider 220 is provided with a clearance groove 222.

[0046] Please see Figure 6 and Figure 7 In one embodiment, a stop plate 223 is provided in the limiting cavity 221, and the stop plate 223 is located on the side of the clamping plate 230 away from the material 1. The stop plate 223 is used to limit the rotation range of the clamping plate 230.

[0047] Please see Figure 3 In one embodiment, the cutter 330 is provided with two anti-deviation protrusions 331, which extend into the discharge port 311. The distance between the two anti-deviation protrusions 331 is greater than the width of the material 1. After the cutter 330 moves away from the discharge port 311, the anti-deviation protrusions 331 remain inside the discharge port 311, guiding the cutter 330 to cut the material and preventing the cutter 330 from colliding with surrounding components during its movement.

[0048] Please see Figure 5 In one embodiment, the inner wall of the guide seat 210 is provided with a guide groove 211, and the outer wall of the U-shaped slider 220 is provided with a sliding part 224 that matches the guide groove 211.

[0049] Please see Figure 3 and Figure 4 In one embodiment, a material basin 350 is provided below the discharge port 311, and the material strip 1 falls into the material basin 350 after being cut.

[0050] Please see Figure 2In one embodiment, the stamping device 100 includes a base 110, a lower die 120 and a press head 130. The strip material is attached to the lower die 120. The base 110 is used to drive the press head 130 to stamp the strip material 1. The press head 130 and the lower die 120 cooperate to stamp a protrusion 21 on the strip material 1.

[0051] Please see Figure 2 In one embodiment, the stamping device 100 further includes a guide rail 140 for guiding the material strip 1 into the stamping device 100.

[0052] The aforementioned punch press 10 for alloy resistors has the following beneficial effects:

[0053] 1. The U-shaped slider 220 and the clamping plate 230 work together to pull the material belt into the discharge port 311 when the lifting plate 320 rises, and reset when the lifting plate 320 falls, so as to intermittently convey the material belt and ensure that the width of the resistance obtained by each punching is consistent.

[0054] 2. The feeding power of the material belt comes from the lifting action of the lifting plate 320, which will not interfere with the cutter 330, so that the punching action is carried out in an orderly manner.

[0055] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A punch press for alloy resistors, characterized in that, include: A stamping device, a material guiding assembly, and a punching assembly are arranged sequentially along the material conveying path; The punching assembly includes a base, a lifting plate, a cutter, and a hydraulic cylinder. The cutter is mounted on the lifting plate, and the base has a discharge port. The hydraulic cylinder is used to drive the cutter to extend into or away from the discharge port to cut the strip material. The material guiding assembly includes a guide seat, a U-shaped slider, a clamping plate, and a connecting rod. The U-shaped slider is slidably disposed in the guide seat and has a limiting cavity. The material passes through the limiting cavity and enters the discharge port. The clamping plate is rotatably disposed in the limiting cavity. The two ends of the connecting rod are respectively connected to the lifting plate and the clamping plate. When the lifting plate rises, it pulls the clamping plate to flip towards the direction of the conveyor belt and drags the U-shaped slider towards the discharge port; when the lifting plate falls, it pushes the clamping plate to flip away from the conveyor belt and drags the U-shaped slider away from the discharge port.

2. The punch press for alloy resistors according to claim 1, characterized in that, The connecting rod includes a body and an adjusting block. The body has an adjusting groove, and the adjusting block is slidably disposed in the adjusting groove. The adjusting block is provided with a locking screw, and the adjusting block is rotatably connected to the clamping plate.

3. The punch press for alloy resistors according to claim 1, characterized in that, The U-shaped slider has a clearance groove.

4. The punch press for alloy resistors according to claim 1, characterized in that, The limiting cavity is provided with a stop plate, which is located on the side of the clamp plate away from the material.

5. The punch press for alloy resistors according to claim 1, characterized in that, The cutter is provided with two anti-deviation protrusions, which extend into the discharge port, and the distance between the two anti-deviation protrusions is greater than the width of the strip material.

6. The punch press for alloy resistors according to claim 1, characterized in that, The inner wall of the guide seat is provided with a guide groove, and the outer wall of the U-shaped slider is provided with a sliding part that matches the guide groove.

7. The punch press for alloy resistors according to claim 1, characterized in that, The distance between the clamping plate and the limiting cavity is greater than the thickness of the strip.

8. The punch press for alloy resistors according to claim 1, characterized in that, A material basin is provided below the discharge port.

9. The punch press for alloy resistors according to claim 1, characterized in that, The stamping device includes a base, a lower die, and a press head. The strip material is attached to the lower die, and the base is used to drive the press head to stamp the strip material.

10. The punch press for alloy resistors according to claim 1, characterized in that, The stamping device also includes a guide rail for guiding the strip material into the stamping device.

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