Cutting machine and leather cutting method

Abstract

The invention relates to the field of leather cutting, in particular to a cutting machine, a cutting assembly is provided with a backflow prevention assembly for preventing leather from flowing back, the cutting assembly comprises a transmission mechanism moving on a cutting machine body, and a pressing beam assembly moves on the cutting machine body through the transmission mechanism; the anti-backflow assembly in the leather feeding device is transferred into the cutting assembly through the dimensional position change of the cutting assembly, under the integrated mode, a part of transverse space specially reserved for the leather feeding device by the cutting machine body can be saved, and in other words, the cutting machine body is convenient to use. After a part of the structure of the leather feeding device is integrated on the cutting assembly, a mechanism used for preventing leather backflow in an existing leather feeding device is replaced by a backflow preventing assembly of the cutting assembly, so that the size of the whole cutting machine is fully reduced, and the leather feeding device has more excellent space occupation.

Description

Technical Field

[0001] The present invention relates to the field of leather cutting, in particular to a cutting machine and a leather cutting method. Background Art

[0002] Leather cutting machine is an automated equipment that cuts a whole piece of leather into corresponding patterns, shapes, etc. according to demand.

[0003] The leather cutting machine is very large, with a length between ±7 meters squared. It should be noted that inadequate size control means that very few devices can be placed in a unit space. For manufacturers, the equipment storage space is fixed, and placing more equipment can increase their own production. Therefore, the current demand is how to improve the current leather cutting machine structure. The current leather cutting machine equipment has the problems of large size and high space occupation, which affects the overall production efficiency. Summary of the Invention

[0004] To solve the above problems, the present invention provides a cutting machine and a leather cutting method, which optimize the composition of the internal structure and effectively reduce the overall volume.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is: a cutting machine, comprising a cutting machine body, a cutting assembly for operating on leather is provided on the cutting machine body, a pressure beam assembly for pressing the leather is provided on the cutting machine body, and the characterised in that the cutting assembly is provided with an anti-backflow assembly for preventing the leather from flowing back, the cutting assembly comprises a transmission mechanism movable on the cutting machine body, and the pressure beam assembly moves on the cutting machine body through the above-mentioned transmission mechanism.

[0006] Beneficial effects of the present invention:

[0007] 1. The present invention utilizes the dimensional position change of the cutting assembly itself to transfer the anti-backflow component in the leather feeding device to the cutting assembly. In this integrated mode, a portion of the lateral space reserved for the leather feeding device in the cutting machine body can be saved. In other words, after part of the structure of the leather feeding device is integrated into the cutting assembly, the mechanism for preventing the backflow of leather in the existing leather feeding device is replaced by the anti-backflow component of the cutting assembly, resulting in a sufficient reduction in the size of the entire cutting machine, which is more excellent in terms of space occupancy.

[0008] 2. In the above-mentioned integration mode, because the existing leather feeding device is modularly designed, it provides an opportunity to share the same transmission mechanism with the pressure beam assembly and the cutting assembly that constitute the feeding mechanism of the anti-backflow assembly. The final result of this choice is to optimize the transmission part that was originally dedicated to the leather feeding device. In other words, the feeding function constituted by this solution has been more fully simplified in terms of the number of components, and the cost can also be greatly reduced.

[0009] Regarding the above-mentioned design changes, the adsorption platform in the cutting machine body provides a feeding part for feeding leather by extension, and the feeding part has a plurality of openings distributed in an array, and the openings have an extension along the length direction of the feeding part; the transmission mechanism in the cutting assembly is arranged on the bottom edge of the adsorption platform, and the adsorption platform passes through the feeding part to meet the support effect required by the leather when feeding and to realize the space required for clamping the leather up and down (during the feeding process, the area adjacent to the opening in the feeding part provides support to the leather).

[0010] In order to obtain the movement of the leather on the cutting machine body, it is necessary to clamp the above-mentioned leather to move: in the cutting machine body, there is also a moving beam assembly located in the opening part. The moving beam assembly and the pressure beam assembly are kept in a corresponding state to each other. The leather is spread on the adsorption platform. Under the action of the moving beam assembly, the leather will be lifted up. In the feeding link, the pressure beam assembly will press the leather on the moving beam assembly, forming a situation where the leather is clamped.

[0011] Generally speaking, the two ends of the pressure beam assembly are connected to the two ends of the movable beam assembly extending outside the adsorption platform. When the movable beam assembly moves, it will also drive the pressure beam assembly to move. The result of synchronous movement ensures that the two maintain a corresponding position relationship.

[0012] The pressure beam assembly comprises a first cylinder mounting bracket, a first lifting cylinder, and a first pressure plate. The first cylinder mounting bracket has an open structure facing the leather. The first lifting cylinder is installed within the first cylinder mounting bracket, and its output is connected to the first pressure plate through this open structure. During feeding, the first lifting cylinder pushes the first pressure plate, which applies pressure to the leather on the moving beam assembly. Under the action of the moving beam assembly, the clamped leather is dragged, achieving the purpose of feeding.

[0013] In this specific implementation, there are at least two groups of pressure beam assemblies. The purpose of setting up multiple groups is, of course, to solve the problem of uneven force on the leather. You should know that the output end of the first lifting cylinder accounts for a very low proportion of the area of ​​the leather. Therefore, the pressure applied by the first pressure plate on the leather is also weakened from the center of application to the surrounding directions. Setting up multiple groups is to compensate for insufficient pressure on the leather and avoid leather wrinkles during the feeding process.

[0014] The moving beam assembly includes a moving beam, a pad, a feeding motor, and a feeding timing belt. The moving beam has a support portion embedded in the opening portion, which provides the leather with the supporting force required for clamping. Sliders are provided at both ends of the moving beam, which are slidingly connected to the slide rails in the transmission mechanism. The feeding timing belt passes through the moving beam, and the feeding timing belt is also connected to the moving beam. The feeding timing belt is sleeved on the driving wheel of the feeding motor and the driven wheel arranged on the cutting machine body. Under the action of the feeding motor, the feeding timing belt forms a dragging effect, and the moving beam makes a linear reciprocating motion with the help of the sliding connection between the slider and the slide rail.

[0015] In order to enhance the connection strength between the belt and the moving beam, a belt pressing plate is also included. There is at least one group of belt pressing plates. The two belt pressing plates clamp the feeding synchronous belt, and the belt pressing plates are connected to the moving beam.

[0016] Although the supporting part provides the necessary supporting force to the leather, in order to avoid slipping due to insufficient friction, an additional pad is provided on the supporting part. The pad is made of a non-rigid material, such as rubber. After the pad is used, the first pressure plate will apply pressure through the leather, which will also cause a certain degree of compression to the pad. This result provides a better clamping effect.

[0017] From the results, it can be seen that the only pressure beam component in this solution is used to clamp the leather and send it out; the structure of the anti-backflow component is the same as that of the pressure beam component.

[0018] The backflow prevention component includes a second lifting cylinder and a second pressure plate. The cutting assembly includes a longitudinal beam, the bottom surface of which is reserved for an open structure facing the leather. After the second lifting cylinder is installed inside the longitudinal beam, the output end of the second lifting cylinder is connected to the second pressure plate through the above-mentioned open structure. When feeding, the second lifting cylinder pushes the second pressure plate, which applies pressure to the leather on the adsorption platform. When the moving beam assembly resets, that is, when the moving beam assembly moves away from the cutting assembly, the friction between the pad and the leather will cause the leather to deviate sideways. To solve this problem, the function of the backflow prevention component is to press the leather on the adsorption platform when the moving beam assembly resets, thereby preventing the leather from being deviated. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a perspective view of the present invention.

[0020] Figure 2 It is a three-dimensional diagram of the adsorption platform.

[0021] Figure 3 It is a three-dimensional view of the cutting assembly.

[0022] Figure 4 yes Figure 3 A stereogram of another view.

[0023] Figure 5 yes Figure 4 A magnified schematic diagram of .

[0024] Figure 6 It is a three-dimensional diagram of the pressure beam assembly.

[0025] Figure 7 yes Figure 6 Explosion diagram.

[0026] Figure 8 This is a partial structural diagram of the cut body.

[0027] Figure 9 yes Figure 8 Enlarged schematic diagram of point B. DETAILED DESCRIPTION

[0028] A cutting machine includes a cutting machine body 1, on which is provided a cutting assembly 2 for operating on leather, and on which is provided a pressure beam assembly 4 for pressing the leather. The cutting machine body 1 is characterized in that the cutting assembly 2 is provided with an anti-backflow assembly for preventing the leather from flowing back, and the cutting assembly 2 includes a transmission mechanism that moves on the cutting machine body 1, and the pressure beam assembly 4 moves on the cutting machine body 1 through the above-mentioned transmission mechanism.

[0029] Beneficial effects of the present invention:

[0030] 1. The present invention utilizes the dimensional position change of the cutting assembly 2 itself to transfer the anti-backflow component in the leather feeding device to the cutting assembly 2. In this integrated mode, a part of the lateral space reserved for the leather feeding device in the cutting machine body 1 can be saved. In other words, after part of the structure of the leather feeding device is integrated into the cutting assembly 2, the mechanism for preventing the backflow of leather in the existing leather feeding device is replaced by the anti-backflow component of the cutting assembly 2, resulting in a sufficient reduction in the size of the entire cutting machine, which is more excellent in terms of space occupancy.

[0031] 2. In the above-mentioned integrated mode, because the existing leather feeding device is modularly designed, an opportunity is provided to share the same transmission mechanism with the pressure beam assembly 4 and the cutting assembly 2 that constitute the feeding mechanism together with the anti-backflow assembly. The final result of this choice is to optimize the transmission part originally dedicated to the leather feeding device. That is to say, the feeding function constituted by this solution has been more fully simplified in terms of the number of components, and the cost can also be greatly reduced.

[0032] Regarding the above-mentioned design changes, the adsorption platform 100 in the cutting machine body 1 provides a feeding part 101 for feeding leather by extension, and the feeding part 101 has a plurality of openings 102 distributed in an array, and the openings 102 have an extension along the length direction of the feeding part 101; the transmission mechanism in the cutting assembly 2 is arranged on the bottom edge of the adsorption platform 100, and the adsorption platform 100 passes through the feeding part 101 to meet the support effect required by the leather when feeding and to realize the space required for clamping the leather up and down (during the feeding process, the area between adjacent openings 102 in the feeding part 101 provides support to the leather).

[0033] In order to obtain the movement of the leather on the cutting machine body 1, it is necessary to clamp the above-mentioned leather to move: in the cutting machine body 1, there is also a moving beam assembly 5 located in the opening 102, and the moving beam assembly 5 and the pressure beam assembly 4 are kept in a corresponding state to each other. The leather is spread on the adsorption platform 100. Under the action of the moving beam assembly 5, the leather will be lifted up. In the feeding link, the pressure beam assembly 4 will press the leather on the moving beam assembly 5, forming a situation where the leather is clamped.

[0034] Generally speaking, the two ends of the pressure beam assembly 4 are connected to the two ends of the movable beam assembly 5 extending outside the adsorption platform 100. When the movable beam assembly 5 moves, it will also drive the pressure beam assembly 4 to move. The result of synchronous movement ensures that the two maintain a corresponding position relationship.

[0035] The pressure beam assembly 4 comprises a first cylinder mounting bracket 41, a first lifting cylinder 42, and a first pressure plate 43. The first cylinder mounting bracket 41 has an open structure that faces the leather. The first lifting cylinder 42 is installed within the first cylinder mounting bracket 41, and its output is connected to the first pressure plate 43 through this open structure. During feeding, the first lifting cylinder 42 pushes the first pressure plate 43, which applies pressure to the leather on the movable beam assembly 5. Under the action of the movable beam assembly 5, the clamped leather is dragged, achieving the purpose of feeding.

[0036] In this specific implementation, there are at least two groups of pressure beam assemblies 4. The purpose of setting up multiple groups is, of course, to solve the problem of uneven force on the leather. It should be noted that the output end of the first lifting cylinder 42 accounts for a very low proportion of the area of ​​the leather. Therefore, the pressure applied by the first pressure plate 43 to the leather is also weakened from the application center to the surrounding directions. Setting up multiple groups is to compensate for insufficient pressure on the leather and avoid the occurrence of leather wrinkles during the feeding process.

[0037] The moving beam assembly 5 includes a moving beam 51, a pad 52, a feeding motor 53, and a feeding timing belt 54. The moving beam 51 has a support portion 51a embedded in the opening portion 102. The support portion 51a provides the leather with the supporting force required for clamping. Sliders 55 are provided at both ends of the moving beam 51, which are slidingly connected to the slide rail in the transmission mechanism. The feeding timing belt 54 passes through the moving beam 51, and the feeding timing belt 54 is also connected to the moving beam 51. The feeding timing belt 54 is sleeved on the driving wheel of the feeding motor 53 and is set on the cutting machine body 1. Under the action of the feeding motor 53, the feeding timing belt 54 forms a dragging effect, and the moving beam 51 makes a linear reciprocating motion with the help of the sliding connection between the slider 55 and the slide rail.

[0038] In order to enhance the connection strength between the belt and the moving beam 51 , a belt pressure plate 56 is also included. There is at least one group of belt pressure plates 56 . The two belt pressure plates 56 clamp the feeding synchronous belt 54 . The belt pressure plates 56 are connected to the moving beam 51 .

[0039] Although the support portion 51a provides the necessary supporting force to the leather, in order to avoid slipping due to insufficient friction, an additional pad 52 is provided on the support portion 51a. The pad 52 is made of a non-rigid material, such as rubber. After the pad 52 is used, the first pressure plate 43 will be compressed to a certain extent after being pressed by the leather. This result provides a better clamping effect.

[0040] From the results, it can be seen that the only pressure beam component 4 in this solution is used to clamp the leather and send the leather out; the structure of the anti-backflow component is the same as that of the pressure beam component 4.

[0041] The backflow prevention component includes a second lifting cylinder 61 and a second pressure plate 62; the cutting assembly 2 includes a longitudinal beam 63, the bottom surface of which is reserved with an open structure facing the leather. After the second lifting cylinder 61 is set inside the longitudinal beam 63, the output end of the second lifting cylinder 61 is connected to the second pressure plate 62 through the above-mentioned open structure. When feeding, the second lifting cylinder 61 will push the second pressure plate 62, and the second pressure plate 62 will put pressure on the leather on the adsorption platform 100; when the moving beam assembly 5 is reset, that is, when the moving beam assembly 5 moves away from the cutting assembly 2, the friction between the pad 52 and the leather will cause the leather to deviate to the side. In order to solve the above problem, the function of the backflow prevention component is to press the leather on the adsorption platform 100 when the moving beam assembly 5 is reset, so as to prevent the leather from being deviated.

[0042] A method for cutting leather:

[0043] S1, start the equipment and perform zero adjustment on the pressure beam assembly 4 and the cutting assembly 2 to ensure that the cutting assembly 2 and the pressure beam assembly 4 arrive at the feeding part 101, and that there is a movable space between the cutting assembly 2 and the pressure beam assembly 4 so that the pressure beam assembly 4 has sufficient space to move during feeding;

[0044] S2, introducing the leather into the feeding part 101 by external equipment or manually using auxiliary tools;

[0045] S3, leather feeding: the first pressing plate 43 presses on the leather, coordinating with the pad 52 on the movable beam 51 to clamp the leather. Then, the feeding motor 53 provides power to drag the movable beam 51 to move, thereby clamping and dragging the leather.

[0046] S4, after the feeding is completed, the cutting assembly 2 cuts the leather, and at the same time, the pressure beam assembly 4 is reset and moved to the zero position to avoid collision between the cutting assembly 2 and the pressure beam assembly 4.

[0047] The above embodiments are merely descriptions of preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary engineering technicians in this field should fall within the scope of protection determined by the claims of the present invention.

Claims

1. A cutting machine, comprising a cutting machine body, a cutting assembly for leather operation, and a pressure beam assembly for pressing the leather, characterized in that: The cutting assembly is provided with an anti-backflow component for preventing the leather from flowing back. The cutting assembly includes a transmission mechanism that moves on the cutting machine body, and the pressure beam component moves on the cutting machine body through the above transmission mechanism.

2. A cutting machine according to claim 1, characterized in that: The adsorption platform in the cutting machine body provides a feeding part for feeding leather by extension. The feeding part has multiple openings distributed in an array, and the openings extend along the length direction of the feeding part; the transmission mechanism is arranged on the bottom surface of the adsorption platform.

3. A cutting machine according to claim 2, characterized in that: The cutting machine body is further provided with a moving beam assembly located in the opening portion. The moving beam assembly and the pressing beam assembly are kept in a state corresponding to each other, and the leather is spread on the adsorption platform.

4. A cutting machine according to claim 3, characterized in that: The two ends of the pressure beam assembly are connected with the two ends of the moving beam assembly extending outside the adsorption platform.

5. A cutting machine according to claim 1, characterized in that: The pressure beam assembly includes a first cylinder fixing frame, a first lifting cylinder, and a first pressure plate; the first cylinder fixing frame is reserved with an open structure facing the leather. After the first lifting cylinder is set inside the first cylinder fixing frame, the output end of the first lifting cylinder is connected to the first pressure plate through the above-mentioned open structure.

6. A cutting machine according to claim 5, characterized in that: There are at least two groups of pressure beam assemblies.

7. A cutting machine according to claim 3, characterized in that: The moving beam assembly includes a moving beam, a pad, a feeding motor, and a feeding timing belt. The moving beam has a supporting portion embedded in the opening portion, which provides the supporting force required for clamping the leather. Sliders are provided at both ends of the moving beam, which are slidably connected to the slide rails in the transmission mechanism. The feeding timing belt passes through the moving beam and is also connected to the moving beam. The feeding timing belt is sleeved on the driving wheel of the feeding motor and the driven wheel arranged on the cutting machine body; a pad is additionally provided on the supporting portion, and the pad is made of non-rigid material.

8. A cutting machine according to claim 3, characterized in that: It also includes a belt pressing plate, which is provided with at least one group. The two belt pressing plates are used to clamp the feeding synchronous belt, and the belt pressing plates are connected to the moving beam.

9. A cutting machine according to claim 1, characterized in that: The anti-backflow component includes a second lifting cylinder and a second pressure plate; the cutting assembly includes a longitudinal beam, and the bottom surface of the longitudinal beam has an open structure reserved for facing the leather. After the second lifting cylinder is arranged inside the longitudinal beam, the output end of the second lifting cylinder is connected to the second pressure plate through the above-mentioned open structure.

10. A method for cutting leather using the cutting machine according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1, start the equipment, perform zero adjustment on the pressure beam assembly and the cutting assembly, ensure that the cutting assembly and the pressure beam assembly arrive at the feeding part, and reserve a movable space between the cutting assembly and the pressure beam assembly so that the pressure beam assembly has sufficient space to move during feeding; S2, guiding the leather onto the feeding section through external equipment or manually using auxiliary tools; S3, executing leather feeding: the first pressing plate presses on the leather, coordinating with the pads on the movable beam to clamp the leather, and then the feeding motor provides power to drag the movable beam to move, thereby clamping the leather and dragging it to move; S4, after the feeding is completed, the cutting assembly cuts the leather, and at the same time, the pressure beam assembly is reset and moved to the zero position to avoid collision between the cutting assembly and the pressure beam assembly.

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