A hot copper die device for rubber ring production

Abstract

The utility model discloses a kind of hot copper mould devices for rubber ring production, it is related to hot connection device technical field, the hot copper mould device for rubber ring production includes rack body, and hot pressing cylinder is fixedly installed in the upper end inboard of rack body;The lower of hot pressing cylinder is equipped with hot pressing upper die;The lower of the hot pressing upper die is equipped with hot pressing lower die;Hot pressing upper die includes fixed upper shell, and the fixed upper shell is fixed with bottom shell, and heater is equipped in bottom shell interior;Sunk bolt is threadedly connected with the middle position of both sides of bottom shell, for the fixation of heater;Groove is opened in the both ends of bottom shell, and is clamped with fixed upper shell, and it is transversely penetrated fixed by bolt.The utility model, fixed upper shell is clamped and fixed with bottom shell, then it is transversely penetrated locking and fixed by bolt, and it is simple in structure and easy to disassemble and assemble, when the semicircular groove of bottom shell bottom side is seriously worn, it can be directly disassembled and replaced;And heater is arranged in bottom shell interior, and it is also convenient to disassemble and replace.

Description

Technical Field

[0001] This utility model specifically relates to the field of heat-bonding device technology, and more specifically to a heat-bonding copper mold device for rubber ring production. Background Technology

[0002] A rubber ring heat-jointing device is a specialized piece of equipment used to heat and connect the two ends of a rubber ring, creating a complete ring. It is primarily used in the rubber product manufacturing industry, such as automotive parts (oil seals, O-rings, etc.), plumbing seals, and industrial machinery seals. This device can process rubber strips into rubber rings of the required specifications to meet the sealing, shock absorption, and other functional needs of different products.

[0003] Typically, electric heating or hot plate heating is used. Electric heating utilizes heating elements such as resistance wires to generate heat through an electric current, which is then applied to the ends of the rubber ring. Hot plate heating involves heating a hot plate to a specific temperature, then bringing the ends of the rubber ring into contact with the hot plate to absorb heat. During the heating process, the rubber material gradually softens, and the activity of its molecular chains increases, creating conditions for subsequent bonding. Once the ends of the rubber ring are heated to a suitable state, pressure is applied using a specific mechanical device to ensure a tight seal between the ends. Under the combined action of pressure and temperature, the rubber molecules diffuse and fuse, and upon cooling and solidification, a strong bond is achieved, forming a complete rubber ring.

[0004] Existing rubber ring heat-bonding devices use an electrically heated upper and lower mold for heat bonding. However, both the upper and lower molds are designed as a single piece, making replacement very inconvenient when the mold is damaged. Utility Model Content

[0005] The purpose of this utility model is to provide a heat-sealing copper mold device for rubber ring production, which adopts a split design, making it very convenient to replace the upper and lower molds or the internal heating elements; thereby solving the technical problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A heat-sealing copper mold device for producing rubber rings includes a frame body, on which a heat-pressing cylinder is fixedly installed on the inner side of the upper end; a heat-pressing upper mold is provided below the heat-pressing cylinder; and a heat-pressing lower mold is provided below the heat-pressing upper mold.

[0008] The upper and lower hot-pressing dies are composed of the same structure and are arranged symmetrically.

[0009] The hot press upper mold includes a fixed upper shell, which is fixed to the bottom shell, and a heater is provided inside the bottom shell;

[0010] Countersunk bolts are threaded to the middle of both sides of the bottom shell for fixing the heater; grooves are provided at both ends of the bottom shell and are snapped into the upper shell and fixed by bolts passing through it laterally.

[0011] As a further technical solution of this utility model, the bottom of the hot pressing upper mold and the top of the hot pressing lower mold are respectively provided with semi-circular grooves a and b to facilitate the hot pressing of the rubber ring; wherein the diameter of semi-circular groove a and semi-circular groove b is smaller than the diameter of semi-circular groove b.

[0012] As a further technical solution of this utility model, the four corners of the top of the fixed upper shell are fixed with snap-fit ​​posts, and a compression spring is fixedly fitted on each snap-fit ​​post; the upper end of the compression spring is inserted into the slots opened around the rubber block, and is snapped and fixed with the bolts around the connecting block.

[0013] The rubber block is connected to the connecting block from bottom to top by bolts; the connecting block and the fixing block are fixed by bolts; and the fixing block is fixed to the cylinder rod of the hot-pressing cylinder by bolts.

[0014] As a further technical solution of this utility model, the lower end of the hot pressing mold is inserted into the positioning cylinder; the positioning cylinder is welded to the connecting base plate; and the connecting base plate is fixed to the machine frame by bolts.

[0015] As a further technical solution of this utility model, the frame is fixed on the working platform; a temperature controller is also provided above the working platform; the temperature controller is electrically connected to the heater.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] 1. In this utility model, the upper shell and the lower shell are fixed by snap-fitting, and then locked by bolts passing through laterally. The structure is simple and easy to disassemble and assemble. When the semi-circular groove on the bottom side of the lower shell is severely worn, it can be directly disassembled and replaced. The heater is located inside the lower shell, which also makes it easy to disassemble and replace.

[0018] 2. In this utility model, when the semicircular groove a and semicircular groove b are pressing the rubber ring, since the diameter of the semicircular groove a is smaller than the diameter of the semicircular groove b, the neatness of the rubber ring joint can be better guaranteed, and the situation of the rubber ring tilting up at one end can be prevented.

[0019] 3. In this utility model, both ends of the compression spring are connected by snap-fit ​​fixing, which is simple and easy to replace when the spring becomes fatigued; moreover, when the rubber ring is hot-pressed, the compression spring can play a buffering role to avoid damage to the rubber ring caused by hard pressure. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0021] Figure 2 This utility model Figure 1 The diagram on the right side shows the structure.

[0022] Figure 3 This utility model Figure 1 The left view.

[0023] Figure 4 This utility model Figure 1 A schematic diagram of the split structure.

[0024] Figure 5 This utility model Figure 4 Another perspective illustration.

[0025] Figure 6 This utility model Figure 1 A magnified view of a portion of the image.

[0026] Figure 7 This utility model Figure 4 A magnified view of a portion of the image.

[0027] In the diagram: 1-Frame, 2-Hot press cylinder, 3-Fixing block, 4-Connecting block, 5-Rubber block, 6-Compression spring, 7-Hot press upper mold, 8-Hot press lower mold, 9-Positioning cylinder, 10-Connecting base plate, 11-Working platform, 12-Temperature controller;

[0028] 71-Fixed upper shell, 72-Snap-fit ​​post, 73-Heater, 74-Bottom shell. Detailed Implementation

[0029] 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.

[0030] Please see Figure 1-7 In this embodiment of the present invention, a hot-pressing copper mold device for producing rubber rings includes a frame body 1, a hot-pressing cylinder 2 is fixedly installed on the inner side of the upper end of the frame body 1; a hot-pressing upper mold 7 is provided below the hot-pressing cylinder 2; and a hot-pressing lower mold 8 is provided below the hot-pressing upper mold 7.

[0031] The hot pressing upper mold 7 and the hot pressing lower mold 8 are composed of the same structure and are arranged symmetrically. The hot pressing upper mold 7 includes a fixed upper shell 71, which is fixed to the bottom shell 74. A heater 73 is provided inside the bottom shell 74.

[0032] Countersunk bolts are threaded to the middle positions on both sides of the bottom shell 74 for fixing the heater 73; grooves are provided at both ends of the bottom shell 74 and are snapped into the upper shell 71 and fixed by bolts passing through laterally.

[0033] By adopting the above technical solution, the upper shell 71 and the lower shell 74 are fixed by snap-fit, and then locked by bolts through the transverse direction. The structure is simple and easy to disassemble and assemble. When the semi-circular groove on the bottom side of the lower shell 74 is severely worn, it can be directly disassembled and replaced. The heater 73 is located inside the lower shell 74, which also makes it easy to disassemble, assemble and replace.

[0034] In this embodiment, the bottom of the hot-pressing upper mold 7 and the top of the hot-pressing lower mold 8 are respectively provided with semi-circular grooves a and b to facilitate hot pressing of the rubber ring; wherein the diameter of semi-circular groove a and semi-circular groove b is smaller than the diameter of semi-circular groove b.

[0035] By adopting the above technical solution, when the semicircular groove a and semicircular groove b are pressing the rubber ring, since the diameter of semicircular groove a is smaller than the diameter of semicircular groove b, the neatness of the rubber ring joint can be better guaranteed, and the situation of the rubber ring tilting up on one end can be prevented.

[0036] In this embodiment, snap-fit ​​posts 72 are fixed at the four corners of the top of the fixed upper shell 71, and a compression spring 6 is sleeved and fixed on each snap-fit ​​post 72; the upper end of the compression spring 6 is inserted into the slots opened around the rubber block 5, and is snapped and fixed with the bolts around the connecting block 4.

[0037] The rubber block 5 is connected to the connecting block 4 from bottom to top by bolts; the connecting block 4 is fixed to the fixing block 3 by bolts; and the fixing block 3 is fixed to the cylinder rod of the hot-pressing cylinder 2 by bolts.

[0038] By adopting the above technical solution, both ends of the compression spring 6 are connected by snap-fit ​​fixing, which is simple and easy to replace when the spring is fatigued. Moreover, when the rubber ring is hot-pressed, the compression spring 6 can play a buffering role to avoid damage to the rubber ring caused by hard pressure.

[0039] In this embodiment, the lower end of the hot-pressing lower mold 8 is inserted into the positioning cylinder 9; the positioning cylinder 9 is welded to the connecting base plate 10; the connecting base plate 10 is fixed to the machine frame 1 by bolts.

[0040] Furthermore, the frame 1 is fixed on the work platform 11; a temperature controller 12 is also provided above the work platform 11; the temperature controller 12 is electrically connected to the heater 73. The temperature controller 12 can be, but is not limited to, the Chint NHR-5100 model.

[0041] As a further explanation of this embodiment, a temperature control probe is also embedded inside the fixed upper shell 71 or the bottom shell 74; the temperature control probe monitors the temperature of the entire hot-pressing upper mold 7 or hot-pressing lower mold 8, and transmits the monitoring information to the temperature controller 12 so that the operator can know the working temperature. Controlling the temperature of the heater 73 by the temperature controller 12 is prior art, and its specific principle will not be described in detail here.

[0042] The working principle of this utility model is as follows: When hot-pressing the rubber ring, firstly, a suitable semi-circular groove is selected according to the diameter of the raw material of the rubber ring. Hot vulcanizing adhesive is applied to the end face of the rubber strip. Then, both ends of the raw material are placed into the semi-circular groove on the lower hot-pressing mold 8. Then, the pneumatic switch is pressed, and the cylinder rod of the hot-pressing cylinder 2 extends, causing the upper hot-pressing mold 7 and the lower hot-pressing mold 8 to close. The heater 73 conducts heat to the bottom shell 74. The pressure applied by the equipment makes the two ends fit tightly together. When the two ends of the rubber ring are heated to a suitable state and after a period of vulcanization reaction, the two end faces are bonded together to form a complete rubber ring.

[0043] 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.

[0044] 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 heat-sealing copper mold device for producing rubber rings, characterized in that: Includes a frame body (1), on which a hot press cylinder (2) is fixedly installed on the inner side of the upper end; a hot press upper mold (7) is provided below the hot press cylinder (2); a hot press lower mold (8) is provided below the hot press upper mold (7); The hot pressing upper mold (7) and the hot pressing lower mold (8) are composed of the same structure and are arranged symmetrically; The hot press upper mold (7) includes a fixed upper shell (71), which is fixed to the bottom shell (74), and a heater (73) is provided inside the bottom shell (74). Countersunk bolts are threaded to the middle positions on both sides of the bottom shell (74) for fixing the heater (73); grooves are provided at both ends of the bottom shell (74) and are engaged with the upper shell (71) and fixed by bolts passing through laterally.

2. The heat-sealing copper mold device for rubber ring production according to claim 1, characterized in that: The bottom of the hot-pressing upper mold (7) and the top of the hot-pressing lower mold (8) are respectively provided with semi-circular grooves a and b to facilitate hot pressing of the rubber ring; wherein the diameter of semi-circular groove a and semi-circular groove b is smaller than the diameter of semi-circular groove b.

3. The heat-sealing copper mold device for rubber ring production according to claim 1, characterized in that: The fixed upper shell (71) has four corners of the top of the fixed shell (71) with snap-fit ​​posts (72) and each snap-fit ​​post (72) is fitted with a compression spring (6); the upper end of the compression spring (6) is inserted into the slots opened around the rubber block (5) and is snapped and fixed with the bolts around the connecting block (4); The rubber block (5) is connected to the connecting block (4) from bottom to top by bolts; the connecting block (4) and the fixing block (3) are fixed by bolts; then the fixing block (3) is fixed to the cylinder rod of the hot press cylinder (2) by bolts.

4. The heat-sealing copper mold device for rubber ring production according to claim 1, characterized in that: The lower end of the hot press mold (8) is inserted into the positioning cylinder (9); the positioning cylinder (9) is welded to the connecting base plate (10); the connecting base plate (10) is fixed to the machine frame (1) by bolts.

5. The heat-sealing copper mold device for rubber ring production according to claim 1, characterized in that: The frame body (1) is fixed on the working platform (11); a temperature controller (12) is also provided above the working platform (11); the temperature controller (12) is electrically connected to the heater (73).

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