Punching equipment for leather

Abstract

The utility model discloses punching equipment for leather, which can limit the position of the leather on a belt conveyor through two push plates so as to ensure that the leather is always in a centering state in a punching process. By means of the design, the punching head can accurately punch the center line of leather, the accuracy of the position of the buckling hole is greatly improved, product flaws are effectively avoided, and the overall quality of products is improved. According to the punching equipment, the step of frequently assembling and disassembling leather on a mold in a traditional method is omitted, and workers do not need to carry out tedious fixing operation. Leather is directly placed on the belt conveyor and can quickly enter a stamping process through automatic positioning of the conveying positioning mechanism, and production efficiency is remarkably improved.

Description

Technical Field

[0001] This utility model relates to the field of leather processing technology, and in particular to a punching device for leather. Background Technology

[0002] In the leather bag manufacturing industry, the processes of cleaning, cutting, sewing, and gluing leather are the cornerstones of producing high-quality bags. Especially when making bag straps, precisely cutting multiple buckle holes is crucial; these holes are typically created using advanced punching machines through precision cutting processes. Currently, the industry mainly uses two methods for creating buckle holes, but both have certain limitations.

[0003] The first method relies on workers manually holding the leather and directly punching it on a punching machine. Although this method is highly flexible, the uncontrollable factors of manual operation often make it difficult to achieve a high degree of precision in the placement of the punch holes, thus increasing the risk of product defects and affecting the overall aesthetics and practicality.

[0004] Another method uses a mold to hold the leather in place, with the punching position of the punching machine precisely controlled by a conveyor module. This method significantly improves the accuracy of the buttonhole placement, ensuring product consistency and high quality. However, this process consumes a significant amount of time in the frequent loading and unloading of the leather onto the mold, severely limiting production efficiency. Utility Model Content

[0005] In view of this, this utility model proposes a punching device for leather, the purpose of which is to effectively improve the efficiency of buckle hole opening in leather bag processing while ensuring high precision in buckle hole opening position.

[0006] The solution provided by this utility model includes:

[0007] A punching device for leather, comprising:

[0008] Base;

[0009] A stamping mechanism is provided on the machine base, the stamping mechanism includes a stamping head, and the machine base is provided with a support platform located below the stamping head;

[0010] Two conveying and positioning mechanisms are respectively disposed on both sides of the support platform. Each conveying and positioning mechanism includes a belt conveyor and positioning components disposed on both sides of the belt conveyor. Each positioning component includes a push plate located above the belt conveyor, and the push plate is movable in the transverse direction of the belt conveyor.

[0011] As a further optional feature, the positioning component also includes a first driver connected to the pusher plate, the first driver driving the pusher plate to move laterally on the belt conveyor.

[0012] As a further optional solution, the conveying and positioning mechanism also includes a guide assembly, which includes a plurality of fixed blocks disposed on the outside of the belt conveyor, and the fixed blocks are provided with vertically arranged limiting rods;

[0013] The push plate has a strip-shaped hole along its width direction, and the limiting rod passes through the strip-shaped hole.

[0014] As a further optional solution, the top of the fixing block is provided with a mounting hole, and the limiting rod is a bolt, which is threadedly connected to the mounting hole.

[0015] As a further alternative, the first actuator can be a pneumatic cylinder or an electric cylinder.

[0016] As a further optional solution, the conveying and positioning mechanism also includes a pressure roller assembly, which includes a bracket, a pressure roller, a main shaft, a first spring, and a limiting block;

[0017] The bracket is disposed on both sides of the belt conveyor. The bracket includes a vertically arranged column. The two ends of the main shaft are slidably sleeved on the columns located on both sides of the belt conveyor. The pressure roller is rotatably disposed on the main shaft and is located above the belt conveyor. The limiting block is disposed on the column and located above the main shaft. The first spring is sleeved on the column, with one end of the first spring abutting against the main shaft and the other end abutting against the limiting block.

[0018] As a further optional solution, the limiting block is a nut, and the limiting block is threadedly connected to the support column.

[0019] As a further optional solution, the stamping mechanism includes a frame, on which a lifting seat is provided and a second drive for driving the lifting seat to move up and down; the stamping head is disposed on the lifting seat.

[0020] As a further optional solution, the stamping mechanism also includes a clamping assembly disposed on the lifting seat. The clamping assembly includes a first rod, a second rod, and a second spring. The first rod is vertically disposed on the lifting seat, the second rod is slidably connected to the bottom end of the first rod, and the second spring is disposed on the first rod to apply downward pressure to the second rod. A pressure block is provided at the bottom end of the second rod.

[0021] As a further alternative, the first rod body has a hollow channel inside, and the lower end of the channel has an opening that connects to the outside.

[0022] The second rod has a slider at its top, which is slidably disposed within the channel, and the width of the slider is greater than the width of the opening of the channel.

[0023] Compared with the prior art, the punching device for leather of this application has at least the following advantages:

[0024] This punching equipment uses two push plates to restrict the position of the leather on the belt conveyor, ensuring that the leather remains centered throughout the punching process. This design allows the punch head to accurately punch along the center line of the leather, significantly improving the precision of the buttonhole placement, effectively preventing product defects, and enhancing overall product quality. This punching equipment eliminates the frequent loading and unloading of leather on the molds required in traditional methods, freeing workers from tedious fixing operations. The leather is placed directly on the belt conveyor, and through automatic positioning by the conveyor positioning mechanism, it quickly enters the punching process, significantly improving production efficiency. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the structure of a punching device for leather according to an embodiment of the present invention;

[0026] Figure 2 This is a front view showing the positional relationship between the two conveying and positioning mechanisms and the stamping mechanism;

[0027] Figure 3 This is a schematic diagram of the pressing assembly on the stamping mechanism;

[0028] Figure 4 This is a schematic diagram of the conveying and positioning mechanism in an embodiment of this utility model;

[0029] Figure 5 This is an exploded view of the conveying and positioning mechanism in an embodiment of this utility model;

[0030] Figure 6 This is a schematic diagram of the guide component in the conveying and positioning mechanism;

[0031] Figure 7 This is a schematic diagram of the pressure roller assembly in the conveying and positioning mechanism;

[0032] In the diagram: 1. Machine base; 11. Support platform;

[0033] 2. Stamping mechanism; 21. Stamping head; 22. Frame; 23. Lifting seat; 24. Second driver; 25. Pressing assembly; 251. First rod; 2511. Channel; 252. Second rod; 2521. Pressure block; 2522. Slider; 253. Second spring;

[0034] 3. Conveying and positioning mechanism; 31. Belt conveyor; 32. Positioning assembly; 321. Push plate; 3211. Strip hole; 322. First driver; 33. Guide assembly; 331. Fixing block; 3311. Mounting hole; 332. Limiting rod; 34. Pressure roller assembly; 341. Bracket; 3411. Support column; 342. Main shaft; 343. Pressure roller; 344. First spring; 345. Limiting block. Detailed Implementation

[0035] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit its scope.

[0036] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "vertical", "horizontal", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0037] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0038] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0039] refer to Figure 1-7 An embodiment of this utility model illustrates a punching device for leather, including a base 1, a punching mechanism 2, and two conveying and positioning mechanisms 3. The punching mechanism 2 is disposed on the base 1 and includes a punching head 21. The base 1 is provided with a support platform 11 located below the punching head 21. The two conveying and positioning mechanisms 3 are respectively disposed on both sides of the support platform 11. The conveying and positioning mechanism 3 includes a belt conveyor 31 and positioning components 32 disposed on both sides of the belt conveyor 31. The positioning components 32 include a push plate 321 located above the belt conveyor 31. The push plate 321 is movably disposed in the lateral direction of the belt conveyor 31.

[0040] Specifically, such as Figure 4 As shown, two push plates 321 are positioned on both sides above the belt conveyor 31. When leather (which is in strip form) is placed on the belt conveyor 31, the two push plates 321 can limit the sides of the leather, allowing it to align with the subsequent stamping head 21. The push plates 321 are adjustable in the transverse direction of the belt conveyor 31, thereby adjusting the centerline position of the leather. Figure 2 As shown, when the leather passes under the punch head 21, the punch head 21 punches it. The push plate 321 limits the position of the punches on the leather so that they correspond to a line. The end of the leather is driven to be conveyed by another conveying and positioning mechanism 3. The leather is limited by both conveying and positioning mechanisms 3 at the same time.

[0041] Thus, the punching equipment uses two push plates 321 to restrict the position of the leather on the belt conveyor 31, ensuring that the leather remains centered throughout the punching process. This design allows the punch head 21 to accurately punch along the center line of the leather, greatly improving the precision of the buttonhole position, effectively avoiding product defects, and enhancing the overall product quality. This punching equipment eliminates the need for frequent loading and unloading of leather on the mold, as is common in traditional methods, eliminating the need for tedious fixing operations by workers. The leather is placed directly on the belt conveyor 31 and automatically positioned by the conveyor positioning mechanism 3, allowing it to quickly enter the punching process, significantly improving production efficiency.

[0042] In some embodiments, to further improve ease of operation, such as Figure 4 and Figure 5 As shown, the positioning component 32 further includes a first driver 322, which is connected to the pusher plate 321. The first driver 322 drives the pusher plate 321 to move laterally on the belt conveyor 31. The first driver 322 is either a pneumatic cylinder or an electric cylinder.

[0043] Specifically, the first driver 322 automatically adjusts the position of the push plates 321, automatically adjusting the distance between the two push plates 321. In this embodiment, initially, the two push plates 321 are far apart. The leather is placed on the belt conveyor 31 manually or by a robotic arm. Then, the first driver 322 pushes the push plates 321 according to a preset stroke, bringing the two push plates 321 closer together, thus adjusting the position of the leather on the belt conveyor 31. In this way, the position of the leather can be quickly adjusted without slowly stuffing the leather between the two push plates 321.

[0044] The above-mentioned scheme is preferably, such as Figure 5 and Figure 6 As shown, the conveying and positioning mechanism 3 further includes a guide assembly 33, which includes several fixed blocks 331 disposed on the outside of the belt conveyor 31. Each fixed block 331 has a vertically arranged limiting rod 332. The push plate 321 has a strip-shaped hole 3211 opened along its width direction, and the limiting rod 332 passes through the strip-shaped hole 3211. In this embodiment, the cooperation between the limiting rod 332 and the strip-shaped hole 3211 ensures that the push plate 321 can only move along the length direction of the strip-shaped hole 3211, making the movement of the push plate 321 more stable and preventing the push plate 321 from shifting position.

[0045] In addition, for ease of manufacturing, such as Figure 6 As shown, the top of the fixing block 331 is provided with a mounting hole 3311, and the limiting rod 332 is a bolt, which is threadedly connected to the mounting hole 3311.

[0046] In some embodiments, to further improve the stability of the leather on the belt conveyor 31, such as Figure 2 and Figure 7 As shown, the conveying and positioning mechanism 3 further includes a pressure roller assembly 34, which includes a bracket 341, a pressure roller 343, a main shaft 342, a first spring 344, and a limiting block 345. The bracket 341 is disposed on both sides of the belt conveyor 31, and includes a vertically arranged support column 3411. The two ends of the main shaft 342 are respectively slidably sleeved on the support column 3411 located on both sides of the belt conveyor 31. The pressure roller 343 is rotatably disposed on the main shaft 342 and is located above the belt conveyor 31. The limiting block 345 is disposed on the support column 3411 and located above the main shaft 342. The first spring 344 is sleeved on the support column 3411, with one end of the first spring 344 abutting against the main shaft 342 and the other end abutting against the limiting block 345.

[0047] Specifically, the first spring 344 drives the main shaft 342 and the pressure roller 343 to descend. The pressure roller 343 presses the leather in the direction of the belt conveyor 31. When the leather passes the position of the pressure roller 343, the pressure roller 343 can press the leather tightly onto the belt conveyor 31, increasing the friction between the leather and the belt conveyor 31, ensuring that the leather will not slip between the leather and the belt conveyor 31, thereby improving the conveying stability of the leather and improving the accuracy of the subsequent punching position.

[0048] In addition, such as Figure 7 As shown, the limiting block 345 is a nut, and the limiting block 345 is threadedly connected to the support column 3411. Thus, the position of the limiting block 345 on the support column 3411 is adjustable. By changing the position of the limiting block 345, the elastic force applied by the first spring 344 to the main shaft 342 can be adjusted.

[0049] In some embodiments, such as Figure 1-3 As shown, the stamping mechanism 2 includes a frame 22, on which a lifting seat 23 and a second driver 24 for driving the lifting seat 23 to move up and down are provided; the stamping head 21 is disposed on the lifting seat 23. The second driver 24 can be a conventional drive source such as a pneumatic cylinder, hydraulic cylinder, or electric cylinder.

[0050] Specifically, the above scheme is as follows: Figure 2 and Figure 3 As shown, the stamping mechanism 2 further includes a clamping assembly 25 disposed on the lifting seat 23. The clamping assembly 25 includes a first rod 251, a second rod 252, and a second spring 253. The first rod 251 is vertically disposed on the lifting seat 23. The second rod 252 is slidably connected to the bottom end of the first rod 251. The second spring 253 is disposed on the first rod 251 to apply downward pressure to the second rod 252. A pressure block 2521 is provided at the bottom end of the second rod 252. In addition, the first rod 251 has a hollow channel 2511 inside, and the lower end of the channel 2511 has an opening communicating with the outside. The top of the second rod 252 has a slider 2522, which is slidably disposed in the channel 2511. The width of the slider 2522 is greater than the width of the opening of the channel 2511.

[0051] In this process, the slider 2522 limits the movement of the second rod 252, preventing it from detaching from the first rod 251. When the second rod 252 is at its lowest position, the pressure block 2521 is positioned below the punch head 21. During punching, the lifting seat 23 descends, and the pressure block 2521 first contacts the leather below, pressing the leather firmly onto the support 11. As the lifting seat 23 continues to descend, the second rod 252 retracts into the first rod 251, and the second spring 253 provides pressure for the pressure block 2521 to press the leather until the punch head 21 contacts the leather and punches a hole. In this process, the pressure block 2521 is used to further fix the leather before punching, which can further improve the positional stability of the leather during punching. Similarly, when the lifting seat 23 rises, the punch head 21 leaves the leather first, and the second spring 253 keeps the pressure block 2521 pressed against the leather. The pressure block 2521 only leaves the leather after the lifting seat 23 continues to rise to a certain height.

[0052] In summary, this application provides a punching device for leather. This device uses two push plates 321 to restrict the position of the leather on the belt conveyor 31, ensuring that the leather remains centered throughout the punching process. This design allows the punch head 21 to accurately punch along the center line of the leather, significantly improving the precision of the buttonhole placement, effectively preventing product defects, and enhancing the overall product quality. This punching device eliminates the need for frequent loading and unloading of leather on the mold, as is common in traditional methods, eliminating the need for tedious fixing operations by workers. The leather is placed directly on the belt conveyor 31 and automatically positioned by the conveyor positioning mechanism 3, allowing it to quickly enter the punching process, significantly improving production efficiency.

[0053] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions of other embodiments.

[0054] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and substitutions can be made without departing from the technical principles of the present utility model, and these improvements and substitutions should also be considered within the protection scope of the present utility model.

Claims

1. A punching device for leather, characterized in that, include: Base; A stamping mechanism is provided on the machine base, the stamping mechanism includes a stamping head, and the machine base is provided with a support platform located below the stamping head; Two conveying and positioning mechanisms are respectively disposed on both sides of the support platform. Each conveying and positioning mechanism includes a belt conveyor and positioning components disposed on both sides of the belt conveyor. Each positioning component includes a push plate located above the belt conveyor, and the push plate is movable in the transverse direction of the belt conveyor.

2. The punching device for leather according to claim 1, characterized in that: The positioning component further includes a first driver connected to the push plate, which drives the push plate to move laterally on the belt conveyor.

3. The punching device for leather according to claim 2, characterized in that: The conveying and positioning mechanism also includes a guide assembly, which includes several fixed blocks disposed on the outside of the belt conveyor, and the fixed blocks are provided with vertically arranged limiting rods; The push plate has a strip-shaped hole along its width direction, and the limiting rod passes through the strip-shaped hole.

4. The punching device for leather according to claim 3, characterized in that: The top of the fixing block is provided with a mounting hole, and the limiting rod is a bolt, which is threaded to the mounting hole.

5. The punching device for leather according to claim 2, characterized in that: The first actuator is a pneumatic cylinder or an electric cylinder.

6. The punching device for leather according to any one of claims 1-5, characterized in that: The conveying and positioning mechanism further includes a pressure roller assembly, which includes a bracket, a pressure roller, a main shaft, a first spring, and a limiting block. The bracket is disposed on both sides of the belt conveyor. The bracket includes a vertically arranged column. The two ends of the main shaft are slidably sleeved on the columns located on both sides of the belt conveyor. The pressure roller is rotatably disposed on the main shaft and is located above the belt conveyor. The limiting block is disposed on the column and located above the main shaft. The first spring is sleeved on the column, with one end of the first spring abutting against the main shaft and the other end abutting against the limiting block.

7. The punching device for leather according to claim 6, characterized in that: The limiting block is a nut, and the limiting block is threadedly connected to the support column.

8. The punching device for leather according to claim 1, characterized in that: The stamping mechanism includes a frame, on which a lifting seat and a second drive for driving the lifting seat to move up and down are provided; the stamping head is disposed on the lifting seat.

9. The punching device for leather according to claim 8, characterized in that: The stamping mechanism further includes a clamping assembly disposed on the lifting seat. The clamping assembly includes a first rod, a second rod, and a second spring. The first rod is vertically disposed on the lifting seat, the second rod is slidably connected to the bottom end of the first rod, and the second spring is disposed on the first rod to apply downward pressure to the second rod. A pressure block is provided at the bottom end of the second rod.

10. The punching device for leather according to claim 9, characterized in that: The first rod has a hollow channel inside, and the lower end of the channel has an opening that connects to the outside. The second rod has a slider at its top, which is slidably disposed within the channel, and the width of the slider is greater than the width of the opening of the channel.

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