Sealing gasket punching cutter die

Abstract

The utility model discloses a sealing gasket punching cutter die, which relates to the technical field of sealing gasket processing, and comprises an upper die holder and a cutter assembly, the upper die holder is composed of a die holder main body, an annular storage groove and an arc-shaped through groove; the cutter assembly comprises an annular cutter, an arc-shaped connecting block, a top circular block, a connecting piece and a sliding sleeve arm; linkage assemblies are arranged on the two sides of the top of the die holder body, the sliding sleeve arms are symmetrically fixed to the two sides of the connecting piece and are in limiting sliding connection with the linkage assemblies, and linkage lifting operation of the cutter assembly and the linkage assemblies is achieved through cooperation of the connecting piece and the linkage assemblies. Through the arrangement of the upper die base, the cutter assembly and the linkage assembly, when the annular cutter is separated from a material, the punched material can still be kept in a flat state, extrusion deformation to the material is avoided, and the punching quality of the sealing gasket is effectively improved.

Description

Technical Field

[0001] This utility model relates to the field of gasket processing technology, specifically a gasket punching die. Background Technology

[0002] Gaskets are sealing components used in machinery, equipment, pipelines, and anywhere there is fluid. They are used both internally and externally to provide a seal. Gaskets are made of metal or non-metal sheet material through processes such as cutting, stamping, or trimming.

[0003] According to Chinese Publication No. CN218699628U, a gasket punching die is disclosed, comprising a die base plate and a punching blade assembly. The punching blade assembly consists of several annular blades of different diameters, which are nested and fixedly connected to the die base plate. A notch is provided at the top of the punching blade assembly, and several ejection mechanisms are provided on the die base plate at intervals between the punching blades. This application solves the problem of insufficient material ejection due to narrow die gaps, and also improves production efficiency and material utilization for gaskets of similar shapes.

[0004] In the above solution, the ejection mechanism can realize the ejection operation of the material. However, during the punching process, the ejection mechanism and the raw material form contact extrusion, and the contact surface is dotted. As a result, when punching non-metallic raw materials (such as asbestos, paper, rubber, etc.), the non-metallic raw materials are prone to deformation, which in turn leads to errors in the shape of the punched gasket and affects the production quality of the gasket. Based on this, a sealing gasket punching die is provided. Utility Model Content

[0005] The purpose of this utility model is to provide a sealing gasket punching die in order to solve the problems mentioned above.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a sealing gasket punching die, comprising an upper die base and a cutting assembly, wherein the upper die base is composed of a die base body, an annular receiving groove and an arc-shaped through groove, the annular receiving groove being opened at the bottom of the die base body, and the arc-shaped through groove being opened at the top of the annular receiving groove and extending through to the top of the die base body;

[0007] The cutter assembly includes a ring-shaped cutter, an arc-shaped connecting block, a top circular block, a connector, and a sliding sleeve arm;

[0008] The annular cutter is housed inside the annular storage groove. The arc-shaped connecting block is fixed to the top of the annular cutter and passes through the arc-shaped through groove to the top of the mold base body. The top round block is fixed to the top of the arc-shaped connecting block. The connecting piece is fixed to the top of the top round block. The top round block is connected and fixed to the output end of the power unit of the punching equipment through the connecting piece.

[0009] The top two sides of the mold base body are provided with linkage components. The sliding sleeve arms are symmetrically fixed on both sides of the connector and are limited and slidably connected with the linkage components. The connector and the linkage components cooperate to realize the linkage lifting operation of the cutting component and the linkage components.

[0010] As a further embodiment of this utility model: the linkage component includes a fixed guide post, a limiting top block, an upper buffer block, and a lower buffer block;

[0011] The fixed guide pillars are symmetrically fixed on both sides of the top of the mold base body, the limiting top block is fixed on the top of the fixed guide pillars, the connecting piece is slidably sleeved on the outside of the fixed guide pillars, and the upper buffer block and lower buffer block are sleeved on the outside of the limiting top block and are respectively located at the upper and lower ends of the connecting piece.

[0012] When the cutting blade assembly moves upward, it squeezes the upper buffer block through the connector, causing the mold base body to move upward synchronously. When the mold base body moves down to the lowest point, the cutting blade assembly continues to move downward along the outer wall of the limiting top block through the connector, so that the annular cutting blade protrudes from below the mold base body to perform punching operation on the material.

[0013] As a further improvement of this utility model: the bottom two sides of the mold base body are symmetrically fixed with support pads, the thickness of the support pads is matched with the thickness of the material to be punched, and the width between the two support pads is greater than the width of the material.

[0014] As a further improvement of this utility model: the number of the annular storage slots is set to multiple, the multiple annular storage slots are concentrically distributed and the diameter decreases sequentially from the outside to the inside, and the number of the annular cutters matches the number of the annular storage slots and the size corresponds one-to-one.

[0015] As a further improvement of this utility model: the number of arc-shaped through slots corresponding to a single annular storage slot is multiple and evenly distributed in an annular shape, and the number and position of the arc-shaped connecting blocks correspond one-to-one with the number and position of the arc-shaped through slots.

[0016] As a further improvement of this utility model: the height of the annular storage groove is greater than the height of the annular cutter, and when the sliding sleeve arm moves to its highest position, the bottom of the annular cutter is flush with the bottom of the mold base body, and the top of the annular cutter does not contact the top of the inner wall of the annular storage groove.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] By setting up an upper die base, a cutting blade assembly, and a linkage assembly, the material can remain flat after punching when the annular cutter separates from the material, without causing extrusion deformation, thus effectively improving the punching quality of the sealing gasket. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is a bottom view of the structure of this utility model;

[0021] Figure 3 This is an exploded view of the structure of this utility model;

[0022] Figure 4 This is a cross-sectional view of the upper mold base and linkage assembly of this utility model.

[0023] In the diagram: 1. Upper mold base; 101. Mold base body; 102. Annular storage groove; 103. Arc-shaped through groove; 2. Cutting blade assembly; 201. Annular cutter; 202. Arc-shaped connecting block; 203. Top round block; 204. Connector; 205. Sliding sleeve arm; 3. Linkage assembly; 301. Fixed guide post; 302. Limiting top block; 303. Upper buffer rubber block; 304. Lower buffer rubber block; 4. Supporting rubber pad. Detailed Implementation

[0024] 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.

[0025] Please see Figures 1-4 In this embodiment of the present invention, a sealing gasket punching die includes an upper die base 1 and a cutting blade assembly 2. The upper die base 1 is composed of a die base body 101, an annular storage groove 102, and an arc-shaped through groove 103. The annular storage groove 102 is opened at the bottom of the die base body 101, and the arc-shaped through groove 103 is opened at the top of the annular storage groove 102 and extends to the top of the die base body 101.

[0026] The cutter assembly 2 includes a ring cutter 201, an arc-shaped connecting block 202, a top round block 203, a connector 204, and a sliding sleeve arm 205;

[0027] The annular cutter 201 is housed inside the annular storage groove 102. The arc-shaped connecting block 202 is fixed to the top of the annular cutter 201 and passes through the arc-shaped through groove 103 to the top of the mold base body 101. The top round block 203 is fixed to the top of the arc-shaped connecting block 202. The connector 204 is fixed to the top of the top round block 203. The top round block 203 is connected and fixed to the output end of the power unit of the punching equipment through the connector 204.

[0028] The top two sides of the mold base body 101 are provided with linkage components 3. The sliding sleeve arms 205 are symmetrically fixed on both sides of the connector 204 and are limited and slidably connected with the linkage components 3. The connector 204 and the linkage components 3 cooperate to realize the linkage lifting operation of the cutter assembly 2 and the linkage components 3.

[0029] The linkage component 3 includes a fixed guide post 301, a limiting top block 302, an upper buffer block 303, and a lower buffer block 304;

[0030] Fixed guide pillars 301 are symmetrically fixed on both sides of the top of the mold base body 101. Limiting top blocks 302 are fixed on the top of the fixed guide pillars 301. Connecting parts 204 are slidably sleeved on the outside of the fixed guide pillars 301. Upper buffer blocks 303 and lower buffer blocks 304 are sleeved on the outside of the limiting top blocks 302 and are located at the upper and lower ends of the connecting parts 204 respectively.

[0031] When the cutter assembly 2 moves upward, it squeezes the upper buffer block 303 through the connector 204, causing the mold base body 101 to move upward synchronously. When the mold base body 101 moves down to the lowest point, the cutter assembly 2 continues to move downward along the outer wall of the limiting top block 302 through the connector 204, so that the annular cutter 201 protrudes from the bottom of the mold base body 101 to perform punching operation on the material.

[0032] The bottom two sides of the die holder body 101 are symmetrically fixed with support pads 4. The thickness of the support pads 4 matches the thickness of the material to be punched, and the width between the two support pads 4 is greater than the width of the material.

[0033] In this embodiment: When this punching die is in use, it is connected and fixed to the output end of the power unit of the punching equipment through the connector. The power unit of the punching equipment (e.g., hydraulic cylinder) drives the punching die to move down to punch the material. At this time, the support pad 4 will first contact the base surface of the punching equipment. The support pad 4 can support the upper die base 1 and buffer the downward movement. In this way, the lower surface of the die base body 101 is in contact with the material surface, but it will not squeeze the material downward, thereby achieving the limitation of the material.

[0034] The power unit then continues to drive the cutter assembly 2 to move downward. During this process, the mold base body 101 remains stationary, while the annular cutter 201 moves out of the annular receiving groove 102 and comes into contact with the material to realize the punching operation on the material.

[0035] Afterwards, the power unit reverses and drives the cutter assembly 2 to move upward. At this time, the mold base body 101 remains stationary under its own gravity, while the annular cutter 201 moves upward and is stored inside the annular storage groove 102. The material tends to move upward synchronously with the annular cutter 201 under the action of friction. The mold base body 101 limits the upward movement of the material. That is, when the annular cutter 201 is completely stored inside the annular storage groove 102, the punched material still remains flat.

[0036] As the cutter assembly 2 moves upward, its sliding sleeve 205 will contact the upper buffer rubber block 303 and apply a pushing force to it. At this time, the upper mold base 1 and the cutter assembly 2 move upward synchronously, thereby releasing the restriction on the material to facilitate the transfer of the material. This reciprocating operation can realize the efficient punching operation of the sealing gasket.

[0037] By coordinating the above components, the material can remain flat after being punched when the annular cutter separates from the material. Compared to structures that achieve this effect by ejecting the material through an ejection mechanism, this method avoids compressing and deforming the material, effectively improving the punching quality of the sealing gasket.

[0038] Please refer to this carefully. Figures 1-4 The number of annular storage slots 102 is set to multiple, and the multiple annular storage slots 102 are concentrically distributed with their diameters decreasing from the outside to the inside. The number of annular cutters 201 matches the number of annular storage slots 102 and their sizes correspond one-to-one.

[0039] There are multiple arc-shaped through slots 103 corresponding to a single annular storage slot 102, and they are evenly distributed in a ring. The number and position of the arc-shaped connecting blocks 202 correspond one-to-one with the number and position of the arc-shaped through slots 103.

[0040] In this embodiment, this structure enables the simultaneous punching and forming of multiple sealing gaskets with sequentially increasing inner diameters.

[0041] Please refer to this carefully. Figures 1-4 The height of the annular storage groove 102 is greater than the height of the annular cutter 201, and when the sliding sleeve arm 205 moves to its highest position, the bottom of the annular cutter 201 is flush with the bottom of the mold base body 101, and the top of the annular cutter 201 does not contact the top of the inner wall of the annular storage groove 102.

[0042] In this embodiment: This structure allows the weight of the upper mold base 1 to be concentrated on the sliding sleeve arm 205 during the upward movement of the cutter assembly 2 and the upper mold base 1, so that the annular cutter 201 will not collide with the upper mold base 1, thus ensuring the stability of the annular cutter 201 in use.

[0043] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A sealing gasket punching die, comprising an upper die base (1) and a cutting blade assembly (2), characterized in that, The upper mold base (1) is composed of a mold base body (101), an annular storage groove (102), and an arc-shaped through groove (103). The annular storage groove (102) is opened at the bottom of the mold base body (101), and the arc-shaped through groove (103) is opened at the top of the annular storage groove (102) and extends to the top of the mold base body (101). The cutter assembly (2) includes an annular cutter (201), an arc-shaped connecting block (202), a top circular block (203), a connector (204), and a sliding sleeve arm (205); The annular cutter (201) is housed inside the annular storage groove (102). The arc-shaped connecting block (202) is fixed to the top of the annular cutter (201) and passes through the arc-shaped through groove (103) to the top of the mold base body (101). The top round block (203) is fixed to the top of the arc-shaped connecting block (202). The connector (204) is fixed to the top of the top round block (203). The top round block (203) is connected and fixed to the output end of the power unit of the punching equipment through the connector (204). The top two sides of the mold base body (101) are provided with linkage components (3). The sliding sleeve arm (205) is symmetrically fixed on both sides of the connector (204) and is limited and slidably connected to the linkage component (3). The connector (204) and the linkage component (3) cooperate to realize the linkage lifting operation of the cutter component (2) and the linkage component (3).

2. The sealing gasket punching die according to claim 1, characterized in that, The linkage component (3) includes a fixed guide post (301), a limiting top block (302), an upper buffer block (303), and a lower buffer block (304); The fixed guide post (301) is symmetrically fixed on both sides of the top of the mold base body (101), the limiting top block (302) is fixed on the top of the fixed guide post (301), the connecting piece (204) is slidably sleeved on the outside of the fixed guide post (301), and the upper buffer rubber block (303) and the lower buffer rubber block (304) are sleeved on the outside of the limiting top block (302) and are respectively located at the upper and lower ends of the connecting piece (204); When the cutter assembly (2) moves upward, it squeezes the upper buffer block (303) through the connector (204), causing the mold base body (101) to move upward synchronously. When the mold base body (101) moves down to the lowest point, the cutter assembly (2) continues to move downward along the outer wall of the limiting top block (302) through the connector (204), so that the annular cutter (201) protrudes from below the mold base body (101) to perform punching operation on the material.

3. The sealing gasket punching die according to claim 1, characterized in that, The bottom sides of the die holder body (101) are symmetrically fixed with support pads (4). The thickness of the support pads (4) matches the thickness of the material to be punched, and the width between the two support pads (4) is greater than the width of the material.

4. The sealing gasket punching die according to claim 1, characterized in that, The number of the annular storage slots (102) is set to be multiple, and the multiple annular storage slots (102) are concentrically distributed with their diameters decreasing from the outside to the inside. The number of the annular cutters (201) matches the number of the annular storage slots (102) and their sizes correspond one-to-one.

5. A sealing gasket punching die according to claim 4, characterized in that, The number of arc-shaped through slots (103) corresponding to a single annular storage slot (102) is multiple and evenly distributed in an annular shape. The number and position of the arc-shaped connecting blocks (202) correspond one-to-one with the number and position of the arc-shaped through slots (103).

6. A sealing gasket punching die according to claim 1, characterized in that, The height of the annular storage groove (102) is greater than the height of the annular cutter (201), and when the sliding sleeve arm (205) moves to its highest position, the bottom of the annular cutter (201) is flush with the bottom of the mold base body (101), and the top of the annular cutter (201) does not contact the top of the inner wall of the annular storage groove (102).

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