Outer rubber cylinder mold

Abstract

The utility model discloses an outer rubber cylinder mold which comprises a base, a pair of fixing rods fixedly connected to the top of the base, a movable mold base installed on the fixing rods in a sleeved mode, a demolding assembly arranged in the movable mold base, a fixed mold base fixedly connected to the tops of the fixing rods, and a cylindrical mold core fixedly connected to the top of the movable mold base. The demolding assembly comprises four ejector rods inserted into the bottom of the movable mold base, the top ends of the ejector rods penetrate through the bottom of the movable mold base and are fixedly connected with ejector rings, and the ejector rings are installed in annular grooves in the top of the movable mold base in an embedded mode. The top of the top ring is flush with the top of the movable mold base, the cylindrical mold core is sleeved with the top ring, and the bottom of the ejector rod is fixedly connected with a base plate. The utility model solves the problems that extra labor and time are consumed, the processing efficiency is influenced and the use is relatively inconvenient because the outer rubber barrel needs to be dug out from the inside of the mold by means of a tool.

Description

Technical Field

[0001] This utility model relates to the field of mold technology, specifically to an outer rubber cylinder mold. Background Technology

[0002] An outer rubber tube mold is a specialized molding tool used to manufacture rubber sealing cylindrical products (outer rubber tubes). It is usually made of metal or plastic materials and has a cavity structure that matches the shape of the outer rubber tube. By injecting raw materials into the mold, an outer rubber tube product that meets the requirements can be manufactured. It is usually used in industrial sealing scenarios (such as hydraulic seals). Its core function is to act as a sealing element, achieving the effects of leak prevention, shock absorption or heat insulation by filling or wrapping specific areas.

[0003] The outer rubber tube mold is usually a closed mold consisting of a top mold and a bottom mold. After the rubber raw material is heated to a fluid state in the injection molding machine barrel, the molten rubber is pushed by a screw or piston and injected at high speed into the cavity of the closed mold through the nozzle. Under pressure, the rubber completes the cross-linking reaction to form a stable structure. After cooling and molding, it can be removed. When removing the product, the surface of the outer rubber tube is too close to the inner wall of the mold, and there is no gap between the outer rubber tube and the mold. This makes it very inconvenient to demold the outer rubber tube. Tools are needed to pry the outer rubber tube out of the mold, which consumes extra labor and time, affects processing efficiency, and is quite inconvenient to use. Utility Model Content

[0004] The purpose of this section is to outline some aspects of the embodiments of this utility model and to briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of this section, the abstract and the title of this utility model. Such simplifications or omissions shall not be used to limit the scope of this utility model.

[0005] In view of the problems existing in the above and / or prior art, the present invention is proposed.

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

[0007] An outer rubber cylinder mold includes a base, and a pair of fixing rods are fixedly connected to the top of the base;

[0008] A movable mold base is sleeved on the fixed rod, and a demolding component is provided inside the movable mold base. A fixed mold base is fixedly connected to the top of the fixed rod.

[0009] The top of the moving mold base is fixedly connected to a cylindrical mold core, and the inside of the fixed mold base is provided with a cylindrical mold cavity that cooperates with the cylindrical mold core. The top of the fixed mold base is connected to an injection port.

[0010] Furthermore: the demolding assembly includes four ejector rods inserted into the bottom of the moving mold base. The top end of each ejector rod passes through the bottom of the moving mold base and is fixedly connected to a top ring. The top ring is embedded in an annular groove on the top of the moving mold base, and the top of the top ring is flush with the top of the moving mold base. The top ring is sleeved on the outside of the cylindrical mold core, and the bottom of each ejector rod is fixedly connected to a base plate.

[0011] Furthermore: four positioning rods are fixedly connected to the top of the moving mold base, and positioning holes corresponding to the positioning rods are opened inside the fixed mold base, and the positioning rods are inserted into the positioning holes.

[0012] Furthermore: a first fixing block is fixedly connected to one side of the fixed mold base, and a motor is fixedly connected to the top of the first fixing block.

[0013] Furthermore: a lead screw is fixedly connected to the output end of the motor, and a threaded block is screwed onto the lead screw. One side of the threaded block is fixedly connected to one side of the moving mold base.

[0014] Furthermore: a second fixing block is fixedly connected to one side of the fixed mold base, a guide rod is fixedly connected to the bottom of the second fixing block, a movable block is sleeved on the guide rod, and one side of the movable block is fixedly connected to one side of the moving mold base.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] The moving mold base moves upward on the fixed rod, achieving mold closing between the moving mold base and the fixed mold base. This allows the cylindrical mold core to be inserted into the cylindrical mold cavity, forming a cylindrical mold. After mold closing, molten rubber is injected into the injection port through an injection machine. The rubber enters the cylindrical mold cavity to form a rubber cylinder structure. After the rubber cylinder cools and solidifies, the moving mold base moves up and down on the fixed rod, achieving mold separation between the moving mold base and the fixed mold base. Then, the moving mold base continues to move downward, causing the demolding assembly to eject the rubber cylinder from the cylindrical mold core, facilitating demolding of the rubber cylinder.

[0017] Other features and advantages of this application will be set forth in the following description and will be apparent in part from the description or may be learned by practicing the application. The objectives and other advantages of this application may be realized and obtained by means of the structures particularly pointed out in the written description and the accompanying drawings.

[0018] The technical solution of this application will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a schematic diagram showing the connection between the moving mold base and the fixed mold base of this utility model;

[0022] Figure 3 This is a schematic diagram of the demolding assembly of this utility model;

[0023] Figure 4 This is a structural schematic diagram of the lead screw and guide rod of this utility model.

[0024] The attached diagram lists the components represented by each number as follows:

[0025] 1. Base; 2. Fixing rod; 3. Moving mold base; 4. Demolding assembly; 41. Ejector rod; 42. Top ring; 43. Chassis; 5. Fixed mold base; 6. Cylindrical mold core; 7. Cylindrical mold cavity; 8. Injection port; 9. Positioning rod; 10. Positioning hole; 11. First fixing block; 12. Motor; 13. Lead screw; 14. Threaded block; 15. Second fixing block; 16. Guide rod; 17. Moving block. Detailed Implementation

[0026] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0027] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0028] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, actual manufacturing should include the three-dimensional spatial dimensions of length, width, and depth.

[0029] Furthermore, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0030] Please see Figures 1-4 As shown, the present invention provides an outer rubber cylinder mold, including a base 1, and a pair of fixing rods 2 are fixedly connected to the top of the base 1;

[0031] A moving mold base 3 is sleeved on the fixed rod 2, and a demolding component 4 is provided inside the moving mold base 3. A fixed mold base 5 is fixedly connected to the top of the fixed rod 2.

[0032] The top of the moving mold base 3 is fixedly connected to a cylindrical mold core 6, and the inside of the fixed mold base 5 is provided with a cylindrical mold cavity 7 that works with the cylindrical mold core 6. The top of the fixed mold base 5 is connected to an injection port 8.

[0033] The moving mold base 3 moves up the fixed rod 2, thereby closing the mold base 3 and the fixed mold base 5, allowing the cylindrical mold core 6 to be inserted into the cylindrical mold cavity 7 to form a cylindrical mold. After the mold is closed, molten rubber is injected into the injection port 8 through the injection machine. The rubber enters the cylindrical mold cavity 7 to form a rubber tube structure. After the rubber tube cools and solidifies, the moving mold base 3 moves up and down the fixed rod 2, thereby separating the moving mold base 3 from the fixed mold base 5. Then, the moving mold base 3 continues to move down, causing the demolding component 4 to push the rubber tube out of the cylindrical mold core 6, facilitating the demolding operation of the rubber tube.

[0034] Preferably, the demolding assembly 4 includes four ejector rods 41 inserted into the bottom of the moving mold base 3. The top of the ejector rods 41 passes through the bottom of the moving mold base 3 and is fixedly connected to a top ring 42. The top ring 42 is embedded in an annular groove on the top of the moving mold base 3, and the top of the top ring 42 is flush with the top of the moving mold base 3. The top ring 42 is sleeved on the outside of the cylindrical mold core 6, and the bottom of the ejector rods 41 is fixedly connected to a base plate 43.

[0035] Before mold closing, the top ring 42 is located in the annular groove at the top of the moving mold base 3. At this time, the top ring 42 and the top of the moving mold base 3 are on the same horizontal plane. When demolding, the moving mold base 3 continues to move down on the fixed rod 2, so that the base plate 43 contacts the top of the base 1. As the moving mold base 3 continues to move down, the ejector rod 41 slides on the inner wall of the moving mold base 3 and drives the top ring 42 to move up, thereby ejecting the molded rubber cylinder from the cylindrical mold core 6 and completing the rapid demolding of the rubber cylinder.

[0036] Preferably, four positioning rods 9 are fixedly connected to the top of the moving mold base 3, and the fixed mold base 5 has positioning holes 10 corresponding to the positioning rods 9 inside, and the positioning rods 9 are inserted into the positioning holes 10.

[0037] When the moving mold base 3 and the fixed mold base 5 are closed, the positioning rod 9 on the top of the moving mold base 3 is inserted into the positioning hole 10 inside the fixed mold base 5 to ensure the stability of the moving mold base 3 and the fixed mold base 5 after they are closed.

[0038] Preferably, a first fixing block 11 is fixedly connected to one side of the fixed mold base 5, and a motor 12 is fixedly connected to the top of the first fixing block 11.

[0039] A lead screw 13 is fixedly connected to the output end of the motor 12. A threaded block 14 is screwed onto the lead screw 13. One side of the threaded block 14 is fixedly connected to one side of the moving mold base 3.

[0040] The motor 12 at the top of the first fixed block 11 drives the lead screw 13 to rotate, which in turn drives the threaded block 14 to rise and fall, thereby driving the moving mold base 3 to rise and fall, and to perform mold closing, mold opening and demolding.

[0041] Preferably, a second fixing block 15 is fixedly connected to one side of the fixed mold base 5, a guide rod 16 is fixedly connected to the bottom of the second fixing block 15, a moving block 17 is sleeved on the guide rod 16, and one side of the moving block 17 is fixedly connected to one side of the moving mold base 3.

[0042] When the moving mold base 3 is raised or lowered, the moving block 17 on one side slides on the guide rod 16 to guide and limit one side of the moving mold base 3, thereby improving the stability of the moving mold base 3 when it is raised or lowered.

[0043] The working principle of this utility model is as follows: the moving mold base 3 moves upward on the fixed rod 2 to achieve the mold closing of the moving mold base 3 and the fixed mold base 5, so that the cylindrical mold core 6 is inserted into the cylindrical mold cavity 7 to form a cylindrical mold. After the mold is closed, the molten rubber is injected into the injection port 8 through the injection machine. The rubber enters the cylindrical mold cavity 7 to form a rubber tube structure. After the rubber tube cools and solidifies, the moving mold base 3 moves up and down on the fixed rod 2 to achieve the mold separation of the moving mold base 3 and the fixed mold base 5. Then the moving mold base 3 continues to move downward so that the base plate 43 contacts the top of the base 1. As the moving mold base 3 continues to move downward, the ejector rod 41 slides on the inner wall of the moving mold base 3 and drives the top ring 42 to move upward, thereby ejecting the molded rubber tube from the cylindrical mold core 6 and completing the rapid demolding of the rubber tube.

[0044] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those skilled in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0045] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. An outer rubber cylinder mold, characterized in that, Includes a base (1), and a pair of fixing rods (2) are fixedly connected to the top of the base (1); A moving mold base (3) is sleeved on the fixed rod (2), and a demolding component (4) is provided inside the moving mold base (3). A fixed mold base (5) is fixedly connected to the top of the fixed rod (2). The top of the moving mold base (3) is fixedly connected to a cylindrical mold core (6), and the inside of the fixed mold base (5) is provided with a cylindrical mold cavity (7) that cooperates with the cylindrical mold core (6). The top of the fixed mold base (5) is connected to an injection port (8).

2. The outer rubber cylinder mold according to claim 1, characterized in that: The demolding assembly (4) includes four push rods (41) inserted into the bottom of the moving mold base (3). The top end of the push rod (41) passes through the bottom of the moving mold base (3) and is fixedly connected to a top ring (42). The top ring (42) is embedded in an annular groove on the top of the moving mold base (3) and the top of the top ring (42) is flush with the top of the moving mold base (3). The top ring (42) is sleeved on the outside of the cylindrical mold core (6). The bottom of the push rod (41) is fixedly connected to a base plate (43).

3. The outer rubber cylinder mold according to claim 1, characterized in that: The top of the moving mold base (3) is fixedly connected with four positioning rods (9), and the fixed mold base (5) has positioning holes (10) corresponding to the positioning rods (9) inside, and the positioning rods (9) are inserted into the positioning holes (10).

4. The outer rubber cylinder mold according to claim 1, characterized in that: A first fixing block (11) is fixedly connected to one side of the fixed mold base (5), and a motor (12) is fixedly connected to the top of the first fixing block (11).

5. The outer rubber cylinder mold according to claim 4, characterized in that: The output end of the motor (12) is fixedly connected to a lead screw (13), and a threaded block (14) is screwed onto the lead screw (13). One side of the threaded block (14) is fixedly connected to one side of the moving mold base (3).

6. The outer rubber cylinder mold according to claim 1, characterized in that: A second fixing block (15) is fixedly connected to one side of the fixed mold base (5), and a guide rod (16) is fixedly connected to the bottom of the second fixing block (15). A moving block (17) is sleeved on the guide rod (16), and one side of the moving block (17) is fixedly connected to one side of the moving mold base (3).

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