Leather punching machine with adjustable punch

Abstract

The utility model discloses a leather punching machine with an adjustable punch, belongs to the technical field of leather processing, and solves the problems that a punching head needs to be replaced every time, extremely long time is consumed, and negative effects can be caused on the structural strength after installation due to repeated disassembly and assembly. Comprising a connecting frame, a top plate fixedly connected to the top face of the connecting frame, an air cylinder fixedly connected to the top face of the top plate and vertically arranged, a supporting plate fixedly connected into the connecting frame, a bearing plate located below the supporting plate and a punching head. A lower cutter guide sleeve coaxial with the upper cutter guide sleeve is arranged on the bearing plate in a penetrating mode, the stamping head penetrates through the upper cutter guide sleeve, a supporting assembly capable of moving up and down is arranged above the supporting plate, and the supporting assembly carries the stamping head to move up and down. By starting the air cylinder, the punching head penetrates through leather to complete punching, different hole diameters can be achieved by replacing the punching head and the limiting head, and operation is easy.

Description

Technical Field

[0001] The utility model relates to the technical field of leather processing, in particular to a leather punching machine with a replaceable punch. Background Art

[0002] Leather punching is a common leather processing technology. By using special punching dies and machinery to punch the leather, various patterns and holes are formed. This technology can not only enhance the aesthetics of the leather but also improve its breathability and comfort. During the punching process, the thickness, hardness, and elasticity of the leather will all affect the punching effect. Therefore, it is necessary to precisely control the punching force and the design of the die. In addition, the punched leather also needs to be appropriately processed, such as edge grinding and finishing, to ensure its durability and aesthetics. It is widely used in the fields of clothing, footwear, luggage, etc., and is an important means to enhance the added value of products.

[0003] When punching leather, if different hole diameters or different hole shapes are required, then the punching head needs to be replaced on the punching machine. Currently, the installation of the punching head is carried out in a fixed connection manner. In this way, actually, each time the punching head is replaced, it takes an extremely long time, and multiple disassembly and assembly operations will also have a negative impact on the structural strength after installation.

[0004] Therefore, a leather punching machine with a replaceable punch is proposed to solve or alleviate the above problems. Content of the Utility Model

[0005] The purpose of the utility model is to solve the deficiencies existing in the prior art and propose a leather punching machine with a replaceable punch.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0007] A leather punching machine with a replaceable punch includes a connecting frame, a top plate fixedly connected to the top surface of the connecting frame, a cylinder fixedly connected to the top surface of the top plate and arranged vertically, a support plate fixedly connected inside the connecting frame, a receiving plate located below the support plate, and a punching head. An upper guide bushing is penetrated through the support plate, a lower guide bushing coaxially arranged with the upper guide bushing is penetrated through the receiving plate, the punching head penetrates through the upper guide bushing, and a support component capable of moving up and down is arranged above the support plate, and the support component drives the punching head to move up and down.

[0008] Preferably, a limiting head coaxially arranged with the punching head is fixedly connected to the upper end of the punching head, the limiting head is placed on the support component, and a force-receiving head capable of abutting against the piston end of the cylinder is coaxially and fixedly connected to the upper end of the limiting head.

[0009] Preferably, the support assembly includes a plurality of guide rods fixedly connected to the support plate, an elastic member sleeved on the outer ring of the guide rod, and a movable plate, the upper end of the guide rod is fixedly connected to a limiting block, the guide rod passes through the movable plate, and the movable plate is located between the elastic member and the limiting block, the cross-section of the movable plate is U-shaped, the inner ring of the movable plate forms a through groove for the punch head to pass through, and the width of the limiting head is greater than the groove width of the through groove.

[0010] Preferably, a plurality of stepped grooves connected to the through grooves are formed on the top surface of the movable plate, and the groove width of the stepped grooves decreases step by step from top to bottom.

[0011] Preferably, the elastic member is a spring.

[0012] Preferably, it also includes a workbench, and the connecting frame is fixedly connected to the workbench.

[0013] The utility model has the following beneficial effects:

[0014] The utility model starts the air cylinder to make the punching head penetrate the leather to complete the punching. Different hole diameters can be achieved by replacing the punching head and the limit head, and the operation is simple. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 for Figure 1 Enlarged view of point A in the middle.

[0018] 1. Workbench; 2. Connecting frame; 3. Top plate; 4. Cylinder; 5. Adapter plate; 6. Lower guide sleeve; 7. Support plate; 8. Upper guide sleeve; 9. Guide rod; 10. Elastic part; 11. Punch head; 12. Limit head; 13. Force head. DETAILED DESCRIPTION

[0019] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Apparently, the described embodiments are some, but not all, of the embodiments of the present utility model. The components of the embodiments of the present utility model usually described and illustrated in the accompanying drawings here can be arranged and designed in various different configurations.

[0020] Therefore, the following detailed description of the embodiments of the present utility model provided in the accompanying drawings is not intended to limit the scope of the claimed present utility model, but merely represents selected embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts fall within the scope of protection of the present utility model.

[0021] It should be noted that like reference numerals and letters denote like items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0022] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship when the product of this utility model is normally placed, or the orientation or positional relationship commonly understood by those skilled in the art. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0023] In addition, the terms "first", "second", "third", etc. are only used for descriptive distinction and cannot be understood as indicating or implying relative importance.

[0024] In the description of the present utility model, it should also be noted that unless otherwise clearly specified and defined, the terms "set", "installed", "connected", "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0025] A punch-adjustable leather punching machine, as Figure 1 and 2As shown in the figure, it includes a workbench 1, a connecting frame 2, a top plate 3 fixedly connected to the top surface of the connecting frame 2, a cylinder 4 fixedly connected to the top surface of the top plate 3 and vertically arranged, a support plate 7 fixedly connected inside the connecting frame 2, a receiving plate 5 located below the support plate 7, and a punching head 11. The connecting frame 2 is fixedly connected to the workbench 1. An upper guide bushing 8 is penetrated through the support plate 7, and a lower guide bushing 6 coaxially arranged with the upper guide bushing 8 is penetrated through the receiving plate 5. The punching head 11 penetrates through the upper guide bushing 8. A support assembly capable of moving up and down is arranged above the support plate 7, and the support assembly drives the punching head 11 to move up and down.

[0026] A limiting head 12 coaxially arranged with the punching head 11 is fixedly connected to the upper end of the punching head 11. The limiting head 12 is placed on the support assembly, and a force-receiving head 13 capable of abutting against the piston end of the cylinder 4 is coaxially and fixedly connected to the upper end of the limiting head 12.

[0027] The support assembly includes a plurality of guide rods 9 fixedly connected to the support plate 7, an elastic member 10 sleeved on the outer ring of the guide rods 9, and a movable plate. The upper end of the guide rod 9 is fixedly connected with a limiting block. The elastic member 10 is a spring. The guide rod 9 penetrates through the movable plate, and the movable plate is located between the elastic member 10 and the limiting block. The cross-section of the movable plate is U-shaped, and a through groove for the punching head 11 to penetrate is formed inside the movable plate. The width of the limiting head 12 is greater than the width of the through groove. A plurality of stepped grooves communicating with the through groove are formed on the top surface of the movable plate, and the width of the stepped grooves gradually decreases from top to bottom.

[0028] When the utility model is actually working, the leather to be punched is placed on the top surface of the receiving plate 5, and the position to be punched corresponds to the position where the lower guide bushing 6 is located. Then, the cylinder 4 is started. The cylinder 4 works to make its piston end move downward. The piston end of the cylinder 4 abuts against the force-receiving head 13. The force-receiving head 13 receives the acting force applied by the piston end of the cylinder 4. The force-receiving head 13 drives the limiting head 12 to move downward. The limiting head 12 abuts against the stepped groove, so that the movable plate moves vertically under the guidance of the guide rod 9. When the movable plate moves downward following the limiting head 12, it will also compress the elastic member 10, so that the elastic member 10 stores elastic potential energy, so that the punching head 11 also penetrates through the lower guide bushing 6, thus completing the punching of the leather. If the aperture of the hole to be punched is different, the punching head 11 is taken out from the upper guide bushing 8 according to the requirement, so that the punching head 11 leaves the through groove and the limiting head 12 leaves the stepped groove. Then, a suitable punching head 11 and limiting head 12 are replaced. Such a replacement method is simpler and does not require other fasteners for connection.

[0029] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. For those skilled in the art, various modifications and variations can be made to the present utility model. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A leather punching machine with adjustable punch, characterized in that: The invention comprises a connecting frame (2), a top plate (3) fixedly connected to the top surface of the connecting frame (2), a cylinder (4) fixedly connected to the top surface of the top plate (3) and arranged vertically, a support plate (7) fixedly connected to the inside of the connecting frame (2), a receiving plate (5) located below the support plate (7), and a punching head (11), wherein an upper guide knife sleeve (8) is passed through the support plate (7), a lower guide knife sleeve (6) coaxially arranged with the upper guide knife sleeve (8) is passed through the receiving plate (5), the punching head (11) is arranged to penetrate the upper guide knife sleeve (8), and a support assembly that can be displaced up and down is arranged above the support plate (7), and the support assembly carries the punching head (11) to move up and down.

2. The leather punching machine with adjustable punch according to claim 1, characterized in that: The upper end of the punch head (11) is fixedly connected to a limit head (12) coaxially arranged therewith, the limit head (12) is placed on a support assembly, and the upper end of the limit head (12) is coaxially fixedly connected to a force-bearing head (13) capable of abutting against a piston end of the cylinder (4).

3. The leather punching machine with adjustable punch according to claim 2, characterized in that: The support assembly comprises a plurality of guide rods (9) fixedly connected to the support plate (7), an elastic member (10) sleeved on the outer ring of the guide rod (9), and a movable plate, the upper end of the guide rod (9) being fixedly connected to a limit block, the guide rod (9) passing through the movable plate, and the movable plate being located between the elastic member (10) and the limit block, the cross section of the movable plate being U-shaped, the inner ring of the movable plate forming a through slot for the punch head (11) to pass through, and the width of the limit head (12) being greater than the slot width of the through slot.

4. The leather punching machine with adjustable punch according to claim 3, characterized in that: The top surface of the movable plate is provided with a plurality of stepped grooves connected with the through grooves, and the groove width of the stepped grooves decreases step by step from top to bottom.

5. The leather punching machine with adjustable punch according to claim 3, characterized in that: The elastic member (10) is a spring.

6. The leather punching machine with adjustable punch according to claim 1, characterized in that: It also comprises a workbench (1), and the connecting frame (2) is fixedly connected to the workbench (1).

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