A die for cutting a web

Abstract

The utility model discloses a roll stock punching die relates to punching device technical field, and this roll stock punching die includes cutting machine, and the cutting machine has a base and a movable knife drive mechanism, is equipped with the punching upper die in the bottom of movable knife drive mechanism, the punching bottom die is equipped below the punching upper die, is equipped with a plurality of strip grooves on the punching bottom die, and the punching bottom die is fixed on the backing plate, then the backing plate is fixed on the base of cutting machine, the punching bottom die is set to 30 45 degree inclination, is equipped with a plurality of guide blocks of sponge material and makes in the feeding end of punching bottom die. The utility model, the punching upper die and the punching bottom die are set to the inclination type, so the rubber strip is convenient to pull out and place, arranges the rubber strip in the strip groove on the punching bottom die, can guarantee the flatness of rubber strip, after arranging the rubber strip in the sink, the movable knife mechanism of cutting machine drives the punching upper die to act towards the punching bottom die, realizes the cutting of rubber strip by the closure of upper punching cutter and lower punching cutter.

Description

Technical Field

[0001] This utility model specifically relates to the field of punching and cutting device technology, and more specifically to a coil punching and cutting die. Background Technology

[0002] Rubber rings are common consumable parts used in mechanical seals. When processing rubber rings, the rolled rubber strips are first cut, and then the rubber strips are joined together by a hot press to produce rubber rings.

[0003] Traditionally, rubber strips for O-ring processing are cut using automatic cutting machines. However, depending on the application, O-rings are also divided into rectangular, Y-shaped, U-shaped, and V-shaped O-rings. There are no requirements for cutting O-rings, but for other shapes of rubber strips, it is essential to ensure that the cross-sectional inclination is consistent and that there is no twisting during cutting. Otherwise, the O-rings will not close perfectly during heat welding. Utility Model Content

[0004] The purpose of this utility model is to provide a roll material punching die, which cuts rubber strips by setting a bottom punching die and a top punching die. During the cutting process, the rubber strips are arranged manually, which can ensure the consistency of multiple rubber strips, prevent twisting during the arrangement, and ensure that the inclination angle of the cross-sections at both ends of the rubber strips is consistent, thereby ensuring that the rubber strips can be perfectly closed when hot-pressed into a sealing ring; thus solving the technical problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A roll material punching die includes a cutting machine having a base and a moving blade drive mechanism, with an upper punching die mounted at the bottom of the moving blade drive mechanism; a lower punching die is provided below the upper punching die.

[0007] The punching die has multiple slots. The punching die is fixed on the pad, and the pad is fixed on the base of the cutting machine.

[0008] The punching die is set at a 30-45 degree angle.

[0009] Multiple guide blocks made of sponge material are provided at the feeding end of the punching die.

[0010] As a further technical solution of this utility model, the punching bottom die has a recessed groove near the feed end; the recessed groove is provided with a lower punching cutter.

[0011] As a further technical solution of this utility model, the upper punching die and the lower punching die are aligned in the same direction and cooperate with each other, and the bottom of the upper punching die is also provided with an upper punching cutter.

[0012] As a further technical solution of this utility model, a worktable is provided on one side of the cutting machine, and multiple diversion strips are provided on the outer side of the worktable near the end of the cutting machine.

[0013] As a further technical solution of this utility model, the diverter strip is a strip made of rubber material, and the cross-section of the diverter strip is 1 / 4 circle, and it is bonded to the worktable.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. In this utility model, the upper die and the bottom die are set at an angle, which facilitates the pulling out and placement of the rubber strip; the rubber strip is arranged in the strip groove on the bottom die, which can ensure the flatness of the rubber strip.

[0016] 2. In this utility model, after the rubber strip is arranged in the sink, the moving blade mechanism of the cutting machine drives the upper punching die to move towards the lower punching die, and the rubber strip is cut by the closing of the upper punching blade and the lower punching blade.

[0017] 3. In this utility model, multiple guide blocks are provided, which can manage multiple rubber strips in a diversion manner, avoid mutual entanglement and interference between two adjacent rubber strips, and ensure that each rubber strip is independent and easy to stretch. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the processing state structure of this utility model.

[0019] Figure 2 This utility model Figure 1 The diagram on the right side shows the structure.

[0020] Figure 3 This utility model Figure 2 A schematic diagram of the bottom side structure.

[0021] Figure 4 This is a three-dimensional structural diagram of the present invention.

[0022] Figure 5 This utility model Figure 3 A magnified view of a portion of the image.

[0023] Figure 6 This utility model Figure 4 A magnified view of a portion of the image.

[0024] In the diagram: 1-cutting machine, 2-pad plate, 3-bottom punching die, 4-upper punching die, 5-guide block, 6-diverter strip, 7-worktable, 8-upper punching cutter, 9-sinking groove, 10-strip groove, 11-lower punching cutter. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Please see Figure 1-6 In this embodiment of the utility model, a roll material punching die includes a cutting machine 1, which has a base and a moving blade drive mechanism. A punching upper die 4 is installed at the bottom of the moving blade drive mechanism; a punching bottom die 3 is provided below the punching upper die 4.

[0027] The punching die 3 has multiple strip grooves 10. The punching die 3 is fixed on the pad 2, and the pad 2 is fixed on the base of the cutting machine 1.

[0028] The punching die 3 is set at an angle of 30-45 degrees;

[0029] Multiple guide blocks 5 made of sponge material are provided at the feeding end of the punching die 3.

[0030] By adopting the above technical solution, the upper punching die 4 and the lower punching die 3 are set at an angle, which facilitates the pulling out and placement of the rubber strip. Arranging the rubber strip in the strip groove 10 on the lower punching die 3 can ensure the flatness of the rubber strip and prevent the rubber strip from twisting. This avoids the situation where the cross-sectional inclination angles of the two ends of the rubber strip are inconsistent, resulting in poor cross-sectional splicing effect during heat welding.

[0031] In this embodiment, the punching bottom die 3 has a recessed groove 9 near the feed end; the recessed groove 9 is provided with a lower punch cutter 11.

[0032] More specifically, the upper punching die 4 and the lower punching die 3 are aligned in the same direction and cooperate with each other. The upper punching die 4 is also provided with an upper punching cutter 8 at its bottom.

[0033] By adopting the above technical solution, after the rubber strip is arranged in the sink 9, the moving blade mechanism of the cutting machine 1 drives the upper punching die 4 to move towards the lower punching die 3, and the rubber strip is cut by the closing of the upper punching blade 8 and the lower punching blade 11.

[0034] It should be noted that the cutting machine 1 is a traditional cutting machine, and each cutting machine includes a moving blade mechanism and a machine base; therefore, its specific driving method will not be described in detail here.

[0035] Furthermore, multiple guide blocks 5 are provided, which can manage multiple rubber strips in a distributed manner, avoiding entanglement and interference between two adjacent rubber strips, ensuring that each rubber strip is independent and easy to stretch.

[0036] In this embodiment, a workbench 7 is provided on one side of the cutting machine 1, and multiple diversion strips 6 are provided on the outer side of the workbench 7 near the end of the cutting machine 1.

[0037] The original end of the rubber strip is wound around the take-up reel or inside the box. By setting the diverter bar 6, multiple rubber strips can be spaced out to ensure that the rubber strips do not entangle with each other when pulled later.

[0038] In this embodiment, the diverting strip 6 is a strip made of rubber, and its cross-section is a quarter circle. It is bonded to the worktable 7. This allows for both diverting and managing the flow of the rubber strip and prevents wear on the rubber strip during pulling.

[0039] The working principle of this utility model is as follows: When processing the rubber strip, multiple rubber strips are first placed at intervals along the diverter strip 6, then pass around the guide block 5 and enter the punching die 3. One end of the rubber strip is manually pulled to make the rubber strip lay flat in the strip groove 10. Then, the rubber strip and the punching die 3 are smoothed with the palm of the hand, so that the rubber strip is in a natural state. This can prevent the rubber strip from deforming due to excessive stretching, and avoid the sealing ring diameter being too small after heat welding. It can also prevent the sealing ring diameter of the heat structure from being too large due to curling. This can ensure that the diameter of each rubber ring is within one degree.

[0040] After the rubber strip is smoothed out, the moving blade mechanism of the cutting machine 1 drives the upper punching die 4 to move towards the lower punching die 3, and the rubber strip is cut by the closing of the upper punching blade 8 and the lower punching blade 11.

[0041] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0042] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style of the specification is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A roll material punching die, comprising a cutting machine (1), the cutting machine (1) having a base and a moving blade drive mechanism, wherein a punching upper die (4) is mounted at the bottom of the moving blade drive mechanism; characterized in that: The upper punching die (4) is provided with a lower punching die (3) below it; The punching die (3) has multiple strip grooves (10) on it. The punching die (3) is fixed on the pad (2), and the pad (2) is fixed on the base of the cutting machine (1). The punching die (3) is set at an angle of 30-45 degrees; Multiple guide blocks (5) made of sponge material are provided at the feeding end of the punching die (3).

2. The roll cutting die according to claim 1, characterized in that: The punching die (3) has a recessed groove (9) near the feed end; the recessed groove (9) is provided with a lower punching cutter (11).

3. The roll cutting die according to claim 2, characterized in that: The upper punching die (4) and the lower punching die (3) are aligned in the same direction and cooperate with each other. The upper punching die (4) is also provided with an upper punching cutter (8) at the bottom.

4. The roll cutting die according to claim 3, characterized in that: The cutting machine (1) is provided with a workbench (7) on one side, and multiple diversion strips (6) are provided on the outer side of the workbench (7) near the end of the cutting machine (1).

5. The roll cutting die according to claim 4, characterized in that: The diverter strip (6) is a strip made of rubber material, and the cross section of the diverter strip (6) is 1 / 4 circle, and it is bonded to the workbench (7).

Images