Rapid perforating device for artificial leather

Abstract

The utility model discloses a rapid artificial leather punching device which comprises a supporting frame, a front end conveying mechanism, punching rollers and a rear end conveying mechanism are sequentially installed on the supporting frame in the leather moving direction, and the punching rollers comprise the first punching roller and the second punching roller. The first punching roller and the second punching roller are located on the front face and the back face of leather respectively, at least two punching units are arranged in the first punching roller, and the device further comprises an adjusting mechanism used for driving the punching protruding nails in the same punching unit to synchronously stretch out of or retract into the guide holes. The first punching roller and the second punching roller rotate oppositely, punching work on leather between the first punching roller and the second punching roller is achieved, and when holes of different diameters need to be punched in the leather, the punching protruding nails of the corresponding outer diameter on the first punching roller are adjusted out through the adjusting mechanism; and the effect of processing holes with different diameters in the leather in the inserting process of the punching convex nails and the blind holes is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of artificial leather processing, and particularly relates to a rapid punching device for artificial leather. Background Art

[0002] Artificial leather is a plastic product that resembles leather in appearance and feel and can replace it. It usually has a fabric as the base, and is coated with synthetic resin and various plastic additives. The fields of application of artificial leather are relatively wide, so there are also many types and styles of artificial leather manufacturing.

[0003] Chinese Patent (Patent No. CN205295370U) discloses a leather automatic punching machine, which includes a feeding and conveying mechanism, a punching pair of rollers, a middle conveying mechanism, and a flattening pair of rollers arranged in sequence from front to back. The utility model has a simple and reasonable structure, low cost, easy operation and maintenance, and can uniformly process a number of ventilation holes on the leather to meet people's higher requirements for floor and wall decoration materials.

[0004] The above patent can only process holes with the same aperture for leather punching. If other apertures need to be processed on the leather, either change to the equipment for processing other apertures or replace the corresponding punching pair of rollers to meet the required punching requirements. However, such methods have cumbersome operation steps, inconvenient use, and large engineering quantities, affecting the processing efficiency of leather punching. Summary of the Utility Model

[0005] In order to solve at least one technical problem mentioned in the background art, the purpose of the utility model is to provide a punching device that can quickly process different apertures during the leather processing.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A rapid punching device for artificial leather, including a support frame, on which a front-end conveying mechanism, a punching roller, and a rear-end conveying mechanism are sequentially installed along the moving direction of the leather. The punching roller includes a first punching roller and a second punching roller, and the first punching roller and the second punching roller are respectively located on the front and back sides of the leather. The characteristic is that at least two punching units are arranged in the first punching roller, each punching unit includes several groups of protruding nail groups distributed circumferentially along the first punching roller, each protruding nail group includes several punching protruding nails distributed sequentially along the axial direction of the first punching roller, the diameters of the punching protruding nails in the same punching unit are the same, and the diameters of the punching protruding nails in different punching units are different;

[0007] Guide holes corresponding to the punching protruding nails one by one for receiving the punching protruding nails are formed on the first punching roller, and the punching protruding nails are movably arranged in the guide holes;

[0008] The device further includes an adjusting mechanism for driving the punching studs in the same punching unit to synchronously protrude or retract into the guiding holes, and blind holes for inserting the punching studs are provided at positions corresponding to the punching studs on the outer circumferential surface of the second punching roller.

[0009] Furthermore, an inner cavity is formed in the first punching roller, and the adjusting mechanism is arranged inside the inner cavity.

[0010] Furthermore, the adjusting mechanism includes a placement rotating cylinder which is rotatably arranged in the inner cavity. A magnet is fixedly installed at one end of each punching stud close to the installation rotating cylinder. A plurality of electromagnets are fixedly installed on the surface of the placement rotating cylinder. The electromagnets are divided into magnetic attraction electromagnets and repulsion electromagnets. When a group of punching studs with the same diameter are protruding from the guiding holes, the repulsion electromagnets and the magnets on the current group of punching studs form magnetic repulsion, while the magnetic attraction electromagnets are attached to and magnetically attracted to the magnets on the remaining groups of punching studs. A driving unit for driving the placement rotating cylinder to rotate is arranged on the placement rotating cylinder.

[0011] Furthermore, support shaft rods are fixedly arranged at both ends of the placement rotating cylinder, and through holes for the support shaft rods to penetrate are formed in the first punching roller.

[0012] Furthermore, the driving unit is a crank, and the crank is fixedly connected to any one of the support shaft rods. The crank is located outside the first punching roller.

[0013] Furthermore, pressure plates for pushing out the leather waste in the blind holes are arranged at the orifices of the blind holes on the second punching roller. The pressure plates are slidably arranged on the inner walls of the blind holes, and buffer springs are fixedly installed between the pressure plates and the bottom walls of the blind holes.

[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows: By rotating the first punching roller and the second punching roller towards each other, the punching studs on the first punching roller are inserted into the blind holes on the second punching roller, so as to realize the punching work on the leather between the first punching roller and the second punching roller. When it is necessary to punch holes with different diameters in the leather, the punching studs with corresponding outer diameters on the first punching roller are adjusted out through the adjusting mechanism, and the effect of punching holes with different diameters in the leather is realized during the insertion process of the punching studs into the blind holes. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic diagram of the working state of the present utility model;

[0016] Figure 2 is a schematic diagram of the overall structure of the present utility model;

[0017] Figure 3 is a three-dimensional schematic diagram of the structure of the punching roller of the present utility model;

[0018] Figure 4 This is a partially enlarged schematic view of the structure at position A in the Figure 2 present utility model;

[0019] Figure 5 This is a partially enlarged schematic view of the structure at position B in the Figure 2 present utility model;

[0020] Figure 6 This is a cross-sectional view of the first punching roller and the adjusting mechanism of the present utility model.

[0021] In the figure: 1, support frame; 2, front-end conveying mechanism; 3, punching roller; 4, rear-end conveying mechanism; 5, first punching roller; 51, punching studs; 52, guiding holes; 53, inner cavity; 54, magnet; 6, second punching roller; 61, blind holes; 62, pressing plate; 7, adjusting mechanism; 71, placement rotating cylinder; 72, repulsive electromagnet; 73, magnetic attraction electromagnet; 74, support shaft rod; 8, driving unit; 81, crank. Specific embodiments

[0022] The technical solutions in the embodiments of the present utility model will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0023] Please refer to Figure 1 and 2 , this embodiment provides a rapid punching device for artificial leather, including a support frame 1. Along the moving direction of the leather, a front-end conveying mechanism 2, a punching roller 3, and a rear-end conveying mechanism 4 are sequentially installed on the support frame 1. The punching roller 3 includes a first punching roller 5 and a second punching roller 6, and the first punching roller 5 and the second punching roller 6 are respectively located on the front and back sides of the leather.

[0024] For punching the leather, the leather to be processed is placed on the front-end conveying mechanism 2, and the front-end conveying mechanism 2 drives the leather to move towards the punching roller 3. At this time, an external driving source drives the first punching roller 5 and the second punching roller 6 to rotate, punching the passing leather. The punched leather moves to the rear-end conveying mechanism 4, and the processed leather is conveyed away through the rear-end conveying mechanism 4 to avoid leather accumulation.

[0025] During the leather processing, different types of leather require different punching hole diameters. However, the existing leather punching is relatively single. To process leather with different hole diameters, different equipment needs to be replaced, resulting in relatively cumbersome operations and affecting the processing efficiency of leather punching.

[0026] Please refer to Figures 3 - 5, for the convenience of quickly perforating leather with different hole diameters, at least two perforating units are provided inside the first perforating roller 5. Each perforating unit includes several groups of protruding nail groups distributed circumferentially along the first perforating roller 5. Each protruding nail group includes several perforating protruding nails 51 distributed sequentially along the axial direction of the first perforating roller 5. The diameters of the perforating protruding nails 51 in the same perforating unit are the same, and the diameters of the perforating protruding nails 51 in different perforating units are different;

[0027] Guide holes 52 for receiving the perforating protruding nails 51 are provided on the first perforating roller 5 corresponding to the perforating protruding nails 51 one by one, and the perforating protruding nails 51 are movably arranged in the guide holes 52;

[0028] The device further includes an adjusting mechanism 7 for driving the perforating protruding nails in the same perforating unit to synchronously protrude or retract into the guide holes. Blind holes 61 for inserting the perforating protruding nails 51 are provided at positions corresponding to the perforating protruding nails 51 on the outer circumferential surface of the second perforating roller 6.

[0029] The leather moves to the perforating roller 3 under the conveyance of the front-end conveying mechanism 2. According to the required perforating diameter of the leather, the perforating protruding nails 51 in the required perforating unit are protruded from the guide holes 52 through the adjusting mechanism 7, and the remaining perforating protruding nails 51 still remain inside the guide holes 52. At this time, the external drive source drives the first perforating roller 5 and the second perforating roller 6 to rotate, so that the perforating protruding nails 51 on the first perforating roller 5 drive the leather to be inserted into the corresponding blind holes 61. Through the shearing action between the edges of the perforating protruding nails 51 and the inner walls of the blind holes 61, the leather is perforated. With the rotation of the first perforating roller 5 and the second perforating roller 6 and the movement of the leather, the effect of continuously perforating the leather is achieved;

[0030] When it is necessary to punch holes with other hole diameters in the leather, first stop the operation of the equipment, then protrude the perforating protruding nails 51 in the required perforating unit from the guide holes 52 through the adjusting mechanism 7, and the remaining perforating protruding nails 51 are retracted into the guide holes 52 through the adjusting mechanism 7, and then start the equipment again, thus completing the punching work of changing holes with different diameters. It is simple and fast, with few operation steps, improving the leather punching processing efficiency and achieving the purpose of quickly punching the leather.

[0031] Please refer to Figure 6 , for the convenience of the installation and cooperation between the adjusting mechanism 7 and the first perforating roller 5, an inner cavity 53 is provided inside the first perforating roller 5, and the adjusting mechanism 7 is arranged inside the inner cavity 53. On the one hand, it saves space and facilitates the operation of the equipment. On the other hand, it is convenient for the adjusting mechanism 7 to adjust the perforating protruding nails 51 located in the guide holes 52.

[0032] Please refer to Figure 6, to make the punching studs 51 in the required punching unit extend out of the guide holes 52, while the remaining punching studs 51 still remain in the guide holes 52. The adjusting mechanism 7 includes a placement cylinder 71 which is rotatably connected to the first punching roller 5. At one end of each punching stud 51 close to the placement cylinder, a magnet 54 is fixedly installed. Electromagnets are fixedly installed on the surface of the placement cylinder 71. All the electromagnets on the same circumferential surface are axially evenly distributed around the axis of the placement cylinder 71. The electromagnets are divided into magnetic attraction electromagnets 73 and repulsive electromagnets 72. When a group of punching studs 51 with the same diameter are extended out of the guide holes 52, the repulsive electromagnets 72 among them form magnetic repulsion with the magnets 54 on the current group of punching studs 51, while the magnetic attraction electromagnets 73 are attached and magnetically attracted to the magnets 54 on the punching studs 51 of the remaining groups. A driving unit 8 for driving the placement cylinder 71 to rotate is provided on the placement cylinder 71..

[0033] In the initial state, as Figure 6 shown, the punching studs 51 in the first punching unit extend out of the guide holes 52. The N poles of the magnets 54 on all the punching studs 51 face the axis of the placement cylinder 71, and all the punching studs 51 on the same circumferential surface are circumferentially evenly distributed around the first punching roller 5. At this time, the repulsive electromagnets 72 correspond to the magnets 54 on the punching studs 51 in the first punching unit, and the S pole of each repulsive magnet 72 faces the axis of the placement cylinder 71;

[0034] While the punching studs 51 in the second punching unit and the third punching unit are located inside the guide holes 52, and the magnetic attraction electromagnets 73 correspond to the punching studs 51 in the second punching unit and the third punching unit. The N pole of each magnetic attraction electromagnet 73 faces the axis of the placement cylinder 71.

[0035] When other hole diameters need to be punched in the leather, first stop the operation of the equipment, and then disconnect the power supply of the repulsive electromagnets 72 and the magnetic attraction electromagnets 73. At this time, all the electromagnets do not generate an external magnetic field, so there is no magnetic connection between the magnets 54 on all the punching studs 51 and the electromagnets. Then drive the placement cylinder 71 to rotate through the driving unit 8, that is, drive the repulsive electromagnets 72 on the placement cylinder 71 to rotate to the corresponding positions of the punching studs 51 in each required punching unit, such as the second punching unit, while the magnetic attraction electromagnets 73 move to the positions corresponding to the punching studs 51 in the first punching unit and the second punching unit. Finally, turn on the current of all the electromagnets, so that all the electromagnets generate an external magnetic field;

[0036] Among them, the S pole of the repulsive electromagnet 72 and the N pole of the magnets 54 on all the punching studs 51 point in the same direction, and the N pole of the magnetic attraction electromagnet 72 and the N pole of the magnets 54 on all the punching studs 51 point in the same direction, both pointing to the axis of the placement rotating cylinder 71. Thus, the repulsive electromagnet 72 causes magnetic repulsion between the magnets 54 on the punching studs 51 in the second punching unit. The punching studs in the second punching unit are pushed out of the guiding holes 52 by the magnetic force, while the magnets 54 on the punching studs 51 in the first punching unit and the second punching unit will be magnetically attracted to the magnetic attraction electromagnet 73, driving the punching studs 51 in the first punching unit and the second punching unit to contract within the guiding holes 52. At the same time, the magnetic attraction electromagnet 73 and the corresponding magnets 54 are attached and magnetically attracted to each other, playing a role in limiting the magnetic attraction electromagnet 73 and preventing the movement of the magnetic attraction electromagnet 73, that is, preventing the placement rotating cylinder 71 from rotating relative to the first punching roller 5, thereby completing the replacement work of the punching studs 51 with other required outer diameters and facilitating the rapid punching of leather.

[0037] Please refer to Figure 3 , for the convenience of driving the rotation of the placement rotating cylinder 71, the driving unit 8 includes a support shaft rod 74. The support shaft rod 74 is fixed at both ends of the placement rotating cylinder 71. A through hole for the support shaft rod 74 to penetrate is provided in the first punching roller 5. A crank 81 is fixedly installed at any end of the support shaft rod 74 away from the placement rotating cylinder 71.

[0038] When it is necessary to rotate the placement rotating cylinder 71, manually rotate the crank 81 so that the crank 81 rotates around the support shaft rod 74 and drives the support shaft rod 74 to rotate together. The rotation of the support shaft rod 74 drives the rotation of the placement rotating cylinder 71. After rotating the placement rotating cylinder 71 to the corresponding position, that is, making the electromagnets on the installation rotating cylinder correspond to the magnets 54 on the punching studs 51, the operation of the crank 81 is stopped.

[0039] Please refer to Figure 5 , to prevent the waste material after leather punching from clogging in the blind holes 61, a pressing plate 62 for pushing out the leather waste material in the blind holes 61 is provided at the orifice of each blind hole 61 on the second punching roller 6. The pressing plate 62 is slidably arranged on the inner wall of the blind hole 61, and a buffer spring is fixedly installed between the pressing plate 62 and the bottom wall of the blind hole 61.

[0040] When the punching stud 51 drives the leather waste material to insert into the adapted blind hole 61, a pressure is generated on the pressing plate 62 in the blind hole 61, causing the pressing plate 62 to compress the buffer spring and move towards the bottom wall of the blind hole 61. After the punching stud 51 moves out of the blind hole 61, the pressing plate 62 moves towards the orifice of the blind hole 61 under the elastic force of the buffer spring and drives the leather waste material, thereby taking the leather waste material out of the blind hole 61 and avoiding the situation of leather waste material clogging the blind hole 61.

[0041] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above-mentioned exemplary embodiments, and the present utility model can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present utility model.

Claims

1. An artificial leather rapid punching device, comprising a support frame (1), a front-end conveying mechanism (2), a punching roller (3), and a rear-end conveying mechanism (4) are successively installed on the support frame (1) along the moving direction of the leather. The punching roller (3) includes a first punching roller (5) and a second punching roller (6). The first punching roller (5) and the second punching roller (6) are respectively located on the front and back sides of the leather. It is characterized in that, The first punching roller (5) is provided with at least two punching units. Each punching unit includes several groups of convex nail groups circumferentially distributed along the first punching roller (5). Each convex nail group includes several punching convex nails (51) sequentially distributed along the axial direction of the first punching roller (5). The punching convex nails (51) in the same punching unit have the same diameter, and the punching convex nails (51) in different punching units have different diameters; The first punching roller (5) is provided with guide holes (52) corresponding to the punching convex nails (51) one by one for accommodating the punching convex nails (51). The punching convex nails (51) are movably arranged in the guide holes (52); The device further includes an adjusting mechanism (7) for driving the punching convex nails in the same punching unit to synchronously extend or retract into the guide holes. A blind hole (61) for inserting the punching convex nails (51) is provided at a position corresponding to the punching convex nails (51) on the outer circumferential surface of the second punching roller (6).

2. The artificial leather rapid punching device according to claim 1, characterized in that, An inner cavity (53) is provided in the first punching roller (5), and the adjusting mechanism (7) is arranged inside the inner cavity (53).

3. The artificial leather rapid punching device according to claim 2, characterized in that, The adjusting mechanism (7) includes a placement rotating cylinder (71). The placement rotating cylinder (71) is rotatably arranged in the inner cavity (53). One end of each punching convex nail (51) close to the installation rotating cylinder is fixedly installed with a magnet (54). A plurality of electromagnets are fixedly installed on the surface of the placement rotating cylinder (71). The electromagnets are divided into magnetic attraction electromagnets (73) and repulsion electromagnets (72). When a group of punching convex nails (51) with the same diameter are extended out of the guide holes (52), the repulsion electromagnets (72) among them form magnetic repulsion with the magnets (54) on the current group of punching convex nails (51), while the magnetic attraction electromagnets (73) are attached and magnetically attracted to the magnets (54) on the remaining groups of punching convex nails (51). A driving unit (8) for driving the placement rotating cylinder (71) to rotate is arranged on the placement rotating cylinder (71).

4. The artificial leather rapid punching device according to claim 3, characterized in that, Support shaft rods (74) are fixedly arranged at both ends of the placement rotating cylinder (71). Through holes for the support shaft rods (74) to penetrate are provided in the first punching roller (5).

5. The artificial leather rapid punching device according to claim 4, characterized in that, The driving unit (8) is a crank (81). The crank (81) is fixedly connected to any one of the support shaft rods (74), and the crank (81) is located outside the first punching roller (5).

6. The artificial leather rapid punching device according to claim 1, characterized in that, Pressure plates (62) for pushing out the leather waste in the blind holes (61) are arranged at the orifices of the blind holes (61) on the second punching roller (6). The pressure plates (62) are slidably arranged on the inner walls of the blind holes (61), and buffer springs are fixedly installed between the pressure plates (62) and the bottom walls of the blind holes (61).

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