Plastic punching device

Abstract

The utility model relates to the technical field of plastic punching, in particular to a plastic punching device which comprises a bottom plate, a supporting table is fixedly connected to the bottom plate, a through groove is formed in the supporting table, a connecting frame is fixedly connected to the bottom plate, a hydraulic cylinder is fixedly connected to the connecting frame, a connecting column is fixedly connected to the hydraulic cylinder, and the connecting column is fixedly connected to the supporting table. The connecting column is rotatably connected with a cross through a bearing, the cross is fixedly connected with a plurality of punching heads, the diameters of the punching heads are different, and the cross is fixed through a fixing mechanism. The punching device has the advantages that the punching head does not need to be detached and replaced, and operation convenience is facilitated.

Description

Technical Field

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

[0002] When processing plastic parts, it is sometimes necessary to punch holes in the plastic. When punching, a punching device is used. Since holes of different apertures need to be punched out during processing, the punching head needs to be replaced. When replacing the existing punching head, it needs to be disassembled first and then installed, which results in cumbersome operation steps when replacing. Utility Model Content

[0003] The utility model aims to solve the defect of complicated operation steps when replacing a punching head in the prior art, and proposes a plastic punching device.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A plastic punching device is designed, comprising a base plate, a support platform is fixedly connected to the base plate, a through slot is formed on the support platform, a connecting frame is fixedly connected to the connecting frame, a hydraulic cylinder is fixedly connected to the connecting frame, a connecting column is fixedly connected to the hydraulic cylinder, a cross is rotatably connected to the connecting column via a bearing, a plurality of punching heads are fixedly connected to the cross, the diameters of the plurality of punching heads are different, and the cross is fixed by a fixing mechanism.

[0006] Preferably, the fixing mechanism comprises a vertical plate, the vertical plate is fixedly connected to the cross, a limiting groove is provided on the vertical plate, a movable sleeve is sleeved on the connecting frame, a limiting edge is fixedly connected to the movable sleeve, and the limiting edge can be inserted into the limiting groove.

[0007] Preferably, a handle is fixedly connected to the movable sleeve.

[0008] Preferably, a placement box is placed on the bottom plate, and the placement box is located directly below the through slot.

[0009] Preferably, a threaded hole is provided on the punching head, a bolt is threadedly penetrated and connected on the cross, and the bolt is threadedly connected to the threaded hole.

[0010] Preferably, the bearing is a thrust ball bearing.

[0011] The utility model provides a plastic punching device, which has the beneficial effect of placing punching heads of different diameters above the through slot by rotating the cross, thereby punching holes of different diameters in the plastic without the need to disassemble and replace the punching heads, which is conducive to the convenience of operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a structural schematic diagram of a plastic punching device proposed by the utility model;

[0013] Figure 2 A three-dimensional diagram of a plastic punching device proposed by the utility model;

[0014] Figure 3 The figure is a side view of a plastic punching device proposed by the utility model.

[0015] In the figure: 1, base plate; 2, support platform; 3, connecting frame; 4, hydraulic cylinder; 5, connecting column; 6, bolt; 7, punching head; 8, cross; 9, movable sleeve; 10, vertical plate; 11, limiting edge; 12, handle; 13, through groove; 14, placement box. DETAILED DESCRIPTION

[0016] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0017] Example 1

[0018] Reference Figure 1-3 A plastic punching device includes a base plate 1, a support platform 2 is fixedly connected to the base plate 1, and a through slot 13 is opened on the support platform 2, so that plastic debris can pass through the through slot 13.

[0019] A connecting frame 3 is fixedly connected to the base plate 1, a hydraulic cylinder 4 is fixedly connected to the connecting frame 3, a connecting column 5 is fixedly connected to the hydraulic cylinder 4, a cross 8 is rotatably connected to the connecting column 5 through a bearing, and the bearing is a thrust ball bearing. When punching, the bearing will be subjected to axial force, and a thrust ball bearing capable of carrying axial force load is adopted.

[0020] The cross 8 is fixedly connected with a plurality of punching heads 7, and the diameters of the plurality of punching heads 7 are different. The cross 8 is fixed by a fixing mechanism. By rotating the cross 8, the punching heads 7 of different diameters are placed above the through slot 13, so that holes of different diameters are punched out of the plastic. There is no need to disassemble and replace the punching heads, which is conducive to the convenience of operation.

[0021] The fixing mechanism includes a vertical plate 10, which is fixedly connected to the cross 8. A limiting groove is provided on the vertical plate 10. A movable sleeve 9 is provided on the connecting frame 3. The movable sleeve 9 allows a limiting edge 11 to move with the cross 8 when punching. The limiting edge 11 is fixedly connected to the movable sleeve 9 and can be inserted into the limiting groove to limit the connecting frame 3, thereby preventing the connecting frame 3 from rotating and fixing the connecting frame 3 when punching.

[0022] A handle 12 is fixedly connected to the movable sleeve 9 , so that the movable sleeve 9 can be moved by grasping the handle 12 , so that the limiting edge 11 is separated from the limiting groove, thereby releasing the limiting of the connecting frame 3 .

[0023] When punching, the plastic part is placed on the support table 2, the position to be punched is placed directly below the punching head 7, and the punching heads 7 of different diameters are placed above the through groove 13 by rotating the cross 8. The limiting edge 11 can be inserted into the limiting groove to fix the connecting frame 3. The hydraulic cylinder 4 extends to drive the punching head 7 to descend for punching.

[0024] Example 2

[0025] Reference Figure 1-3 As another preferred embodiment of the utility model, on the basis of embodiment 1, a placement box 14 is placed on the bottom plate 1, and the placement box 14 is located directly below the through slot 13, so as to collect and recycle the punched fragments.

[0026] Example 3

[0027] In embodiment 1, when the punching head 7 is damaged, it is inconvenient to replace the punching head 7. Figure 1-3 As another preferred embodiment of the utility model, on the basis of embodiment 1, a threaded hole is provided on the punching head 7, a bolt 6 is threadedly penetrated and connected on the cross 8, and the bolt 6 is threadedly connected to the threaded hole. By using the bolt 6 and the threaded hole to cooperate with each other, the punching head 7 can be replaced by loosening the bolt 6 after the punching head 7 is damaged.

[0028] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A plastic punching device, comprising a bottom plate (1), characterized in that: The base plate (1) is fixedly connected to a support platform (2), a through slot (13) is provided on the support platform (2), the base plate (1) is fixedly connected to a connecting frame (3), the connecting frame (3) is fixedly connected to a hydraulic cylinder (4), the hydraulic cylinder (4) is fixedly connected to a connecting column (5), the connecting column (5) is rotatably connected to a cross (8) via a bearing, the cross (8) is fixedly connected to a plurality of punching heads (7), the diameters of the plurality of punching heads (7) are different, and the cross (8) is fixed by a fixing mechanism.

2. A plastic punching device according to claim 1, characterized in that: The fixing mechanism comprises a vertical plate (10), the vertical plate (10) is fixedly connected to the cross (8), a limiting groove is provided on the vertical plate (10), a movable sleeve (9) is sleeved on the connecting frame (3), a limiting edge (11) is fixedly connected to the movable sleeve (9), and the limiting edge (11) can be inserted into the limiting groove.

3. A plastic punching device according to claim 2, characterized in that: A handle (12) is fixedly connected to the movable sleeve (9).

4. A plastic punching device according to claim 1, characterized in that: A placement box (14) is placed on the bottom plate (1), and the placement box (14) is located directly below the through slot (13).

5. A plastic punching device according to any one of claims 1 to 4, characterized in that: The punching head (7) is provided with a threaded hole, and a bolt (6) is threadedly penetrated and connected on the cross (8), and the bolt (6) is threadedly connected to the threaded hole.

6. A plastic punching device according to claim 5, characterized in that: The bearing is a thrust ball bearing.

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