Leather positioning and punching device

Abstract

The utility model discloses a leather positioning and punching device which comprises an operation table, compression roller assemblies, a power assembly and a punching assembly, the compression roller assemblies and a positioning support are installed on the operation table, and the two compression roller assemblies are connected through the power assembly. The punching assembly comprises a sliding rod, an electric push rod, a pressing plate with a limiting nut A and a round punch installed on the pressing plate. The sliding rod is installed on the positioning support in a sliding mode and provided with a limiting nut B. The top of the sliding rod is provided with an electric push rod connected with the pressing plate. The pressing rollers are matched with the operation table, the two pressing rollers press leather during punching, the leather is limited, the punching precision is high, the pressing plate and the round punch are driven by the electric push rod to punch, automatic punching operation can be achieved, the punching speed is high, and operation is convenient; meanwhile, when a large number of leather materials are processed, only the power assembly and the electric push rod of the punching device need to be controlled in a unified mode, a large number of workers do not need to conduct operation, and cost needed by leather material punching can be effectively reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of leather processing, in particular to a leather positioning and punching device. Background Art

[0002] During the production and processing of leather bags, it is necessary to fix and install hardware at specific positions, and this operation requires pre-punching of leather. Currently, a punching machine such as a punching device in Chinese patent CN202321348879.X is used, including a punching machine and a round punch, the punching machine is provided with a driving shaft for pushing the round punch, and also includes a mounting mechanism arranged on the driving shaft for installing round punches of different diameters, the mounting mechanism includes two symmetrically arranged mounting plates fixedly connected to one end of the driving shaft near the leather, a mounting rod is rotatably connected between the two mounting plates, a mounting ring is fixedly connected to the side wall of the mounting rod, and a plurality of mounting tubes are fixedly connected to the mounting ring. Through the setting of the mounting mechanism, the punching machine can install multiple round punches of different diameters at one time under the fixing action of the fixing mechanism, thereby meeting the punching operation requirements of different apertures on the same batch of leather materials, and can effectively improve the leather punching efficiency. However, the punching operation requires manual operation by workers. For leather materials that require large-scale positioning and punching, the labor cost required for manual operation is high. In addition, since the leather is not limited during punching, the leather will move during the punching process, causing the punching position to easily shift, the punching accuracy is low, and after the punching is completed, the leather will bend and become uneven, which prolongs the time for later processing. Therefore, it is necessary to improve the existing punching machine. Summary of the invention

[0003] In view of the shortcomings that the above-mentioned punching device needs to be operated manually, the labor cost required for punching holes in large quantities of leather is high, and the leather will be offset due to the lack of position limit, the utility model provides a leather positioning and punching device which can automatically perform the punching operation after limiting the leather, has high punching accuracy, and is easy to use.

[0004] To achieve the above purpose, the technical solution of the utility model is as follows:

[0005] A leather positioning and punching device comprises an operating table, a pressure roller assembly, a power assembly and a punching assembly, wherein pressure roller assemblies are respectively installed at both ends of the top surface of the operating table, a positioning bracket is installed in the middle, and the two pressure roller assemblies are connected by the power assembly; the punching assembly comprises a sliding rod, an electric push rod, a pressure plate with a limiting nut A and at least one round punch, wherein the round punch is movably installed on the pressure plate and limited by the limiting nut A; the sliding rod is slidably installed on the positioning bracket, and limiting nuts B are respectively provided at both ends of the sliding rod, an electric push rod is installed on the top of the sliding rod, and the movable rod of the electric push rod passes through the sliding rod and is connected to the top surface of the pressure plate.

[0006] Furthermore, the pressure roller assembly includes a pressure roller, a rotating rod and a mounting seat, wherein the pressure roller is inserted into the rotating rod; the mounting seat is fixedly mounted on the top surface of the operating table, the rotating rod is rotatably connected to the mounting seat, and one end of the rotating rod is connected to the power assembly. When in use, the power assembly drives the rotating rod to rotate, and the rotating rod drives the pressure roller to rotate, pressing the leather material and pushing the leather material along the operating table. The leather material is pressed again while moving, and the bending and unevenness of the leather material can be reduced. It is easy to use and has good effects.

[0007] Furthermore, the power assembly includes a motor, a motor bracket, a coupling, a driving gear, a driven gear and a transmission chain; the two sides of the motor are connected to the motor bracket, the driving gear is fixedly connected to the rotating shaft of the motor, and the end of the rotating shaft is connected to one of the roller assemblies through a coupling; the driven gear is connected to the other roller assembly, and the driven wheel and the driving gear are connected through a transmission chain. When the power assembly is used, it is turned on and clicked, and the rotating shaft of the motor rotates, driving one of the roller assemblies and the driving gear to rotate through the coupling, and the driving gear drives the driven gear to rotate through the transmission chain, thereby realizing the rotation of the other roller assembly; one motor drives two roller assemblies, and the structure is simple and the transmission is stable and reliable.

[0008] Furthermore, the pressing plate is a rectangular structure, the bottom of the pressing plate is provided with a strip groove matched with the round punch, and the side of the strip groove is provided with a plurality of limiting threaded holes; the limiting nut A of the round punch is slidably connected to the limiting threaded hole through a thread. The round punch is slidably arranged in the strip groove, and the limiting nut A cooperates with different limiting threaded holes to achieve the limiting of different positions of the round punch, which can facilitate the need of drilling holes at different positions.

[0009] Furthermore, the round punch includes a sliding block, a threaded connection column and an annular knife, wherein the sliding block is slidably installed in the strip groove; the bottom of the sliding block is fixedly connected to the threaded connection column; the middle and upper sections of the inner wall of the annular knife are provided with internal threads that match the threaded column. The annular knife is detachable through threaded matching, which is convenient for replacement after long-term use, can reduce the overall maintenance cost, and improve the overall durability; at the same time, the annular knife has several sizes, which can be quickly replaced through threaded matching to facilitate different punching needs.

[0010] Furthermore, the slider is T-shaped, and the strip groove is a T-shaped groove that matches the slider. The T-shaped slider matches the T-shaped groove, and the sliding mechanism is more stable, not easy to fall during use, and has a good use effect.

[0011] The use of the utility model:

[0012] The number of circular punches can be selected according to the number of holes to be punched, and the position of the circular punch can be adjusted by cooperating with the limit nut A and the pressure plate; the position adjustment and limiting of the sliding rod can be realized by cooperating with the limit nut B and the sliding rod; when in use, the leather is placed on the operating table so that one end of the cloth contacts the pressure roller, and then the power assembly is turned on. The power assembly drives the pressure roller to rotate, and the pressure roller presses the leather and pushes it along the operating table until the cloth moves to the pressure roller at the other end and is pressed by the other pressure roller. At this time, the power assembly stops, and the electric push rod is turned on. The electric push rod drives the movable rod to move downward, and the movable rod drives the pressure plate and the circular punch to move downward to punch holes in the leather. After the punching is completed, the electric push rod is controlled so that the movable rod drives the pressure plate to rise, and then the power assembly is turned on again. After the power assembly presses the leather, the leather is pushed out of the operating table to complete the punching operation. The leather with completed holes enters the next step for other processing.

[0013] Compared with the prior art, the utility model has the following advantages and beneficial effects:

[0014] 1. The pressing rollers of the utility model cooperate with the operating table. When punching, the two pressing rollers press the leather to realize the position limiting operation of the leather. The leather will not shift and the punching accuracy is high. The electric push rod drives the pressing plate and the circular punch to punch, which can realize automatic punching operation, fast punching speed and convenient operation. At the same time, when processing a large amount of leather, it is only necessary to uniformly control the power components and the electric push rod of the punching device, without the need for a large number of workers to operate, which can effectively reduce the cost required for leather punching.

[0015] 2. The motor of the power assembly of the utility model drives two pressure roller assemblies respectively through the rotating shaft and the coupling. The pressure rollers press the leather when punching and flatten the leather again after the punching is completed, which can facilitate the subsequent processing of the leather; the circular punch can slidably cooperate with the pressure plate, and the circular punch can be limited at different positions through the limit nut A, which can facilitate the needs of punching at different positions. At the same time, the annular knife of the circular punch has several sizes, which can be quickly replaced through threaded cooperation, which is convenient for different punching needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The present invention is a three-dimensional structural schematic diagram of a leather positioning and punching device.

[0017] Figure 2 The invention is a schematic diagram of the connection relationship between a power component and a pressure roller component of a leather positioning and punching device.

[0018] Figure 3 The invention is a schematic diagram of the specific structure of a punching component of a leather positioning and punching device.

[0019] Figure 4 The present invention is a schematic diagram of the structure of different types of annular knives of a circular punch of a leather positioning and punching device.

[0020] Figure ID:

[0021] Operating table—1, pressure roller assembly—2, pressure roller—21, rotating rod—22, mounting seat—23, power assembly—3, motor—31, motor bracket—32, coupling—33, driving gear—34, driven gear—35, transmission chain—36, punching assembly—4, sliding rod—41, electric push rod—42, limiting nut A—43, pressure plate—44, strip groove—441, limiting threaded hole—442, round punch—45, sliding block—451, threaded connecting column—452, annular knife—453, limiting nut B—46, positioning bracket—5. DETAILED DESCRIPTION

[0022] The utility model is further described below in conjunction with the accompanying drawings.

[0023] Embodiment 1: A leather positioning and punching device comprises an operating table 1, a pressure roller assembly 2, a power assembly 3 and a punching assembly 4, wherein pressure roller assemblies 2 are respectively installed at both ends of the top surface of the operating table 1, and a positioning bracket 5 is installed in the middle, wherein the two pressure roller assemblies 2 are connected through the power assembly 3; the punching assembly 4 comprises a sliding rod 41, an electric push rod 42, a pressure plate 44 with a limiting nut A43 and at least one round punch 45, wherein the round punch 45 is movably installed on the pressure plate 44 and limited by the limiting nut A43; the sliding rod 41 is slidably installed on the positioning bracket 5, and limiting nuts B46 are respectively provided at both ends of the sliding rod 41, an electric push rod 42 is installed on the top of the sliding rod 41, and the movable rod of the electric push rod 42 passes through the sliding rod 41 and is connected to the top surface of the pressure plate 44.

[0024] The number of round punches 45 can be selected according to the number of holes to be punched, and the position of the round punch 45 can be adjusted by cooperating with the limit nut A43 and the pressure plate 44; the position adjustment and limiting of the sliding rod 41 can be realized by cooperating with the limit nut B46 and the sliding rod 41; when in use, the leather is placed on the operating table 1 so that one end of the cloth contacts the pressing roller 21, and then the power component 3 is turned on, the power component 3 drives the pressing roller 21 to rotate, and the pressing roller 21 presses the leather and pushes it along the operating table 1 until the cloth moves to the pressing roller 21 at the other end and is pressed by the other pressing roller 21. At this time, the power component 3 stops, and the electric push rod 42 is turned on. The electric push rod 42 drives the movable rod to move downward, and the movable rod drives the pressing plate 44 and the round punch 45 to move downward to punch holes in the leather. After the punching is completed, the electric push rod 42 is controlled so that the movable rod drives the pressing plate 44 to rise, and then the power component 3 is turned on again. After the power component 3 presses the leather, the leather is pushed out of the operating table 1 to complete the punching operation. The leather with the holes completed enters the next process for other processing.

[0025] Embodiment 2: The difference from Embodiment 1 is that the pressure roller assembly 2 comprises a pressure roller 21, a rotating rod 22 and a mounting seat 23, wherein the pressure roller 21 is inserted into the rotating rod 22; the mounting seat 23 is fixedly mounted on the top surface of the operating table 1, the rotating rod 22 is rotatably connected to the mounting seat 23, and one end of the rotating rod 22 is connected to the power assembly 3. When in use, the power assembly 3 drives the rotating rod 22 to rotate, and the rotating rod 22 drives the pressure roller 21 to rotate, pressing the leather material and pushing the leather material along the operating table 1. The leather material is pressed again while moving, and the bending and unevenness of the leather material can also be reduced. It is easy to use and has good effects.

[0026] The pressing plate 44 is a rectangular structure, and a strip groove 441 is provided at the bottom of the pressing plate 44 to cooperate with the round punch 45, and a plurality of limiting threaded holes 442 are provided on the side of the strip groove 441; the limiting nut A43 of the round punch 45 is slidably connected to the limiting threaded hole 442 through a thread. The round punch 45 is slidably arranged in the strip groove 441, and the limiting nut A43 cooperates with different limiting threaded holes 442 to achieve the limiting of different positions of the round punch 45, which can facilitate the need of drilling holes at different positions.

[0027] The round punch 45 includes a sliding block 451, a threaded connection column 452 and an annular knife 453, wherein the sliding block 451 is slidably installed in the strip groove 441; the bottom of the sliding block 451 is fixedly connected to the threaded connection column 452; the middle and upper sections of the inner wall of the annular knife 453 are provided with internal threads that match the threaded column. The annular knife 453 is detachable through threaded matching, which is convenient for replacement after long-term use, can reduce the overall maintenance cost, and improve the overall durability; at the same time, the annular knife 453 has several sizes, which can be quickly replaced through threaded matching to facilitate different punching needs.

[0028] Embodiment 3: The difference from Embodiment 2 is that the power assembly 3 includes a motor 31, a motor bracket 32, a coupling 33, a driving gear 34, a driven gear 35 and a transmission chain 36; the two sides of the motor 31 are connected to the motor bracket 32, the driving gear 34 is fixedly connected to the rotating shaft of the motor 31, and the end of the rotating shaft is connected to one of the roller assemblies 2 through the coupling 33; the driven gear 35 is connected to the other roller assembly 2, and the driven wheel and the driving gear 34 are connected through the transmission chain 36. When the power assembly 3 is used, it is turned on and clicked, and the rotating shaft of the motor 31 rotates, driving one of the roller assemblies 2 and the driving gear 34 to rotate through the coupling 33, and the driving gear 34 drives the driven gear 35 to rotate through the transmission chain 36, thereby realizing the rotation of the other roller assembly 2; the two roller assemblies 2 are driven by one motor 31, and the structure is simple and the transmission is stable and reliable.

[0029] The slider is T-shaped, and the strip groove 441 is a T-shaped groove that matches the slider. The T-shaped slider matches the T-shaped groove, and the sliding mechanism is more stable, not easy to fall during use, and has a good use effect.

[0030] A single chip microcomputer is also installed on the positioning bracket 5, and the single chip microcomputer is electrically connected to the power component 3 and the punching component 4. When in use, the device can be automatically controlled by the single chip microcomputer. When in use, the power component 3 is first driven to press the leather material, and then the punching component 4 is controlled to punch holes. Finally, the leather material with holes punched is pushed out of the operating table 1 by the power component 3, and the next piece of leather to be processed is pressed into the operating table 1 at the same time; the single chip microcomputer can realize the control of the device by controlling the operation and stop of the power component 3 and the punching component 4, which can reduce the labor intensity of workers to the greatest extent and facilitate the punching of leather materials.

[0031] In the specification of the present utility model, a lot of specific details are described. However, it is understood that the embodiments of the present utility model can be practiced without these specific details. In some examples, well-known methods, structures and techniques are not shown in detail so as not to obscure the understanding of this specification.

[0032] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. These modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the utility model, and they should all be included in the scope of the claims and specification of the utility model.

Claims

1. A leather positioning and punching device, characterized in that: The invention comprises an operating table (1), a pressure roller assembly (2), a power assembly (3) and a punching assembly (4), wherein pressure roller assemblies (2) are respectively installed at both ends of the top surface of the operating table (1), a positioning bracket (5) is installed in the middle, and the two pressure roller assemblies (2) are connected via the power assembly (3); the punching assembly (4) comprises a sliding rod (41), an electric push rod (42), a pressing plate (44) with a limiting nut A (43), and at least one round punch (45), wherein the round punch (45) is movably installed on the pressing plate (44) and is limited by the limiting nut A (43); the sliding rod (41) is slidably installed on the positioning bracket (5), and limiting nuts B (46) are respectively provided at both ends of the sliding rod (41); the electric push rod (42) is installed on the top of the sliding rod (41), and the movable rod of the electric push rod (42) passes through the sliding rod (41) and is connected to the top surface of the pressing plate (44).

2. A leather positioning and punching device as claimed in claim 1, characterized in that: The pressure roller assembly (2) comprises a pressure roller (21), a rotating rod (22) and a mounting seat (23), wherein the pressure roller (21) is inserted into the rotating rod (22); the mounting seat (23) is fixedly mounted on the top surface of the operating table (1); the rotating rod (22) is rotatably connected to the mounting seat (23), and one end of the rotating rod (22) is connected to the power assembly (3).

3. A leather positioning and punching device as claimed in any one of claims 1 or 2, characterized in that: The power assembly (3) comprises a motor (31), a motor bracket (32), a coupling (33), a driving gear (34), a driven gear (35) and a transmission chain (36); both sides of the motor (31) are connected to the motor bracket (32); the driving gear (34) is fixedly connected to the rotating shaft of the motor (31); and the end of the rotating shaft is connected to one of the pressure roller assemblies (2) via the coupling (33); the driven gear (35) is connected to the other pressure roller assembly (2); and the driven gear and the driving gear (34) are connected via the transmission chain (36).

4. A leather positioning and punching device as claimed in claim 1, characterized in that: The pressing plate (44) is a rectangular structure. The bottom of the pressing plate (44) is provided with a strip groove (441) that cooperates with the round punch (45). The side of the strip groove (441) is provided with a plurality of limiting threaded holes (442). The limiting nut A (43) that can slide on the round punch (45) is detachably connected to the limiting threaded hole (442) through a thread.

5. A leather positioning and punching device as claimed in any one of claims 1 or 2, characterized in that: The round punch (45) comprises a sliding block (451), a threaded connection column (452) and an annular knife (453), wherein the sliding block (451) is slidably installed in the strip groove (441); the bottom of the sliding block (451) is fixedly connected to the threaded connection column (452); and the middle upper section of the inner wall of the annular knife (453) is provided with an internal thread matching the threaded column.

6. A leather positioning and punching device as claimed in claim 5, characterized in that: The sliding block is T-shaped, and the strip groove (441) is a T-shaped groove that matches the sliding block.

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