Rubber oil seal die

Abstract

The utility model relates to the technical field of rubber oil seal molds, in particular to a rubber oil seal mold which comprises an annular cavity. The multiple glue injection pipes are arranged in the vertical direction, the bottoms of the glue injection pipes communicate with the annular cavity, the multiple glue injection pipes are arranged around the central axis of the annular cavity at equal intervals, and the distance between the glue injection pipes and the central axis of the annular cavity is smaller than the radius of the annular cavity; an edge water inlet is formed in the edge water inlet channel; the two exhaust cooling channels are in an arc shape and are symmetrically arranged on the two sides of the edge water inlet channel, one end of each exhaust cooling channel is communicated with the edge water inlet channel, the other end of each exhaust cooling channel is provided with an edge water outlet, and the exhaust cooling channels and the annular cavity are coaxially arranged; and the exhaust cooling channel is communicated with the annular cavity through the exhaust ports. The device has the effect of realizing uniform filling of the sizing material.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of a rubber oil seal mold, in particular to a rubber oil seal mold. BACKGROUND

[0002] The rubber oil seal mold plays an important role in modern industrial production and is widely used in the fields of automobiles and machinery. With the improvement of product performance requirements, mold design is constantly progressing to meet the production needs of high efficiency and high quality. The traditional design of the rubber oil seal mold optimizes the structure and process parameters to improve the sealing performance and durability of the product and promotes the development of related industries. However, with the diversification of market demand and the progress of technology, the existing mold still faces challenges in terms of injection efficiency, cooling effect and exhaust performance.

[0003] In particular, during the injection process, due to the unreasonable distribution of the injection tube or the poor design of the exhaust channel, it is easy to cause uneven filling of the rubber material, excessive cooling time and bubble residue, thereby affecting the final performance of the product. Therefore, how to further optimize the mold structure to solve these problems has become a technical problem to be solved. CONTENT OF THE UTILITY MODEL

[0004] In order to overcome the above technical problems, the application provides a rubber oil seal mold.

[0005] The rubber oil seal mold provided by the application adopts the following technical scheme:

[0006] A rubber oil seal mold, comprising a ring-shaped cavity; a plurality of injection tubes, the injection tubes being arranged in a vertical direction, the bottom of the injection tube being in communication with the ring-shaped cavity, a plurality of the injection tubes being arranged at equal intervals around the central axis of the ring-shaped cavity, the distance between the injection tube and the central axis of the ring-shaped cavity being less than the radius of the ring-shaped cavity; an edge water inlet channel, the edge water inlet channel being provided with an edge water inlet; two exhaust cooling channels, the exhaust cooling channels being arc-shaped, the exhaust cooling channels being symmetrically arranged on both sides of the edge water inlet channel, one end of the exhaust cooling channel being in communication with the edge water inlet channel, the other end being provided with an edge water outlet, the exhaust cooling channel being coaxially arranged with the ring-shaped cavity; a plurality of exhaust ports, the exhaust cooling channel being in communication with the ring-shaped cavity through the exhaust port.

[0007] Optionally, the cross-sectional area of the exhaust port is inversely proportional to the distance from the edge water inlet channel.

[0008] Optionally, it further comprises a plurality of edge exhaust channels, the edge exhaust channels being arranged in a vertical direction, the bottom of the edge exhaust channel being in communication with the ring-shaped cavity, a plurality of the edge exhaust channels being arranged at equal intervals around the circumference of the ring-shaped cavity.

[0009] Optionally, a transition port is arranged between the glue injection pipe and the annular cavity.

[0010] Optionally, a central cooling cavity is coaxially arranged at the center of the annular cavity, and a central water inlet channel is arranged in the vertical direction, the bottom of the central water inlet channel is communicated with the central cooling cavity, and the central water inlet channel is arranged at the central axis of the central cooling cavity.

[0011] Optionally, the bottom of the central cooling cavity is further provided with a plurality of central water outlets, the central water outlets are communicated with the central cooling cavity, and the central water outlets are arranged around the circumference of the central cooling cavity.

[0012] In summary, the present application has at least one of the following beneficial technical effects:

[0013] 1. By arranging a plurality of glue injection pipes distributed in the vertical direction and communicated with the annular cavity, uniform filling of the glue material can be achieved, the problem of uneven filling caused by unreasonable distribution of the glue injection pipe is effectively avoided, and the glue injection efficiency and product quality are significantly improved.

[0014] 2. The arc-shaped exhaust cooling channel is arranged symmetrically, and is communicated with the annular cavity through the exhaust port, which not only enhances the exhaust effect and reduces the residual bubbles, but also realizes efficient cooling and shortens the product forming time.

[0015] 3. The combination design of the edge water inlet channel and the exhaust cooling channel optimizes the flow path of the cooling water, further improves the cooling efficiency, ensures the uniform temperature distribution in the mold, and thus improves the forming quality of the product. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is a structure schematic diagram of a rubber oil seal mold provided by the embodiment of the present application;

[0017] Figure 2 is a structure schematic diagram of the rubber oil seal mold from another angle provided by the embodiment of the present application.

[0018] Marked 1-annular cavity; 2-glue injection pipe; 3-edge water inlet channel; 4-exhaust cooling channel; 5-exhaust port; 6-edge exhaust channel; 7-edge water inlet; 8-transition port; 9-central cooling cavity; 10-central water inlet channel; 11-central water outlet. DETAILED DESCRIPTION

[0019] The inventor of the present application found that the existing rubber oil seal mold has defects in injection uniformity, cooling efficiency and exhaust effect, especially during the injection process, due to unreasonable distribution of injection tube 2 or poor design of exhaust passage, which easily leads to uneven filling of rubber, too long cooling time and bubble residue. Therefore, the present application mainly adopts a rubber oil seal mold, which comprises a ring-shaped cavity 1, a plurality of injection tubes 2, an edge water inlet passage 3, two exhaust cooling passages 4 and a plurality of exhaust ports 5, wherein the plurality of injection tubes 2 are arranged along the vertical direction, the bottom is communicated with the ring-shaped cavity 1, the distance between the injection tube 2 and the center axis of the ring-shaped cavity 1 is less than the radius of the ring-shaped cavity 1; the edge water inlet passage 3 is provided with an edge water inlet 7; the two exhaust cooling passages 4 are arc-shaped and symmetrically arranged on both sides of the edge water inlet passage 3, one end is communicated with the edge water inlet passage 3, the other end is provided with an edge water outlet, and is coaxially arranged with the ring-shaped cavity 1; the plurality of exhaust ports 5 are communicated between the exhaust cooling passage 4 and the ring-shaped cavity 1. By optimizing the layout of the injection tube 2, the design of the cooling passage and the exhaust structure, the effects of improving the injection uniformity, shortening the cooling time and reducing the bubble residue are achieved, and the following will be described in detail with reference to the accompanying drawings Figures 1-2 The present application will be further described in detail.

[0020] The present application discloses a rubber oil seal mold.

[0021] As shown in Figure 1 and Figure 2 , a rubber oil seal mold has an upper mold and a lower mold, and the ring-shaped cavity 1 is arranged between the upper mold and the lower mold; a plurality of injection tubes 2 are arranged along the vertical direction, the bottom of the injection tube 2 is communicated with the ring-shaped cavity 1, the plurality of injection tubes 2 are arranged at equal intervals around the center axis of the ring-shaped cavity 1, and the distance between the injection tube 2 and the center axis of the ring-shaped cavity 1 is less than the radius of the ring-shaped cavity 1; an edge water inlet passage 3 is provided with an edge water inlet 7; two exhaust cooling passages 4 are arc-shaped, the exhaust cooling passages 4 are symmetrically arranged on both sides of the edge water inlet passage 3, one end of the exhaust cooling passage 4 is communicated with the edge water inlet passage 3, the other end is provided with an edge water outlet, and the exhaust cooling passage 4 is coaxially arranged with the ring-shaped cavity 1; a plurality of exhaust ports 5 are communicated between the exhaust cooling passage 4 and the ring-shaped cavity 1.

[0022] The annular cavity 1 is combined with a plurality of glue injection pipes 2 arranged in the vertical direction, which can realize uniform injection of glue and effectively avoid product quality problems caused by uneven glue injection. The glue injection pipe 2 can be made of metal material, such as stainless steel or aluminum alloy, to meet the requirements of different glue injection pressures and temperatures. The glue injection pipe 2 is distributed at equal intervals around the center axis of the annular cavity 1 and has a distance from the center axis that is less than the radius of the annular cavity 1, which can ensure that the glue is injected from multiple directions at the same time, thereby avoiding the problem of glue accumulation or uneven filling. In addition, the edge water inlet channel 3 cooperates with the symmetrically arranged arc-shaped exhaust cooling channel 4, which not only can quickly introduce cooling water, but also can exhaust the gas in the annular cavity 1 through the exhaust port 5, thereby reducing the residual gas bubbles around the circumference, significantly improving the cooling efficiency and ensuring the product forming quality.

[0023] In order to ensure that the cooling water flows more uniformly in the edge water inlet channel 3 and the exhaust cooling channel 4, the cross-sectional area of the exhaust port 5 is inversely proportional to the distance from the edge water inlet channel 3.

[0024] The cross-sectional area of the exhaust port 5 of the rubber oil seal mold is inversely proportional to the distance from the edge water inlet channel 3, which can ensure reasonable distribution of cooling water flow, effectively exhaust the gas in the annular cavity 1, and also help to reduce the thermal deformation of the mold during use, improve the forming quality of the rubber oil seal product.

[0025] As shown in Figure 1 The rubber oil seal mold also includes a plurality of edge exhaust channels 6 arranged in the vertical direction, the bottom of the edge exhaust channel 6 is in communication with the annular cavity 1, and the plurality of edge exhaust channels 6 are arranged at equal intervals around the circumference of the annular cavity 1.

[0026] The plurality of edge exhaust channels 6 are arranged at equal intervals around the circumference of the annular cavity 1, which can provide additional exhaust paths, further improve the exhaust efficiency of the gas in the cavity, reduce the residual gas bubbles on the working surface of the rubber oil seal, and thus improve the forming precision and surface quality of the rubber oil seal.

[0027] Optionally, a transition port 8 is provided between the glue injection pipe 2 and the annular cavity 1. The side wall of the transition port 8 can be designed in a conical shape with a taper angle ranging from 30° to 60°, thereby reducing the glue injection resistance and improving the uniformity of glue flow. The material of the transition port 8 can be consistent with that of the glue injection pipe 2, and the specific selection needs to be determined according to the actual use environment.

[0028] As shown in Figure 1As shown, in order to further improve the cooling effect of the rubber oil seal product, the rubber oil seal mold further comprises a central cooling cavity 9 and a central water inlet channel 10, the central cooling cavity 9 is coaxially arranged at the center of the annular cavity 1, and the central water inlet channel 10 is arranged in the vertical direction, the bottom of the central water inlet channel 10 is communicated with the central cooling cavity 9, and the central water inlet channel 10 is arranged at the central axis of the central cooling cavity 9.

[0029] The rubber oil seal mold adds the central cooling cavity 9 and the central water inlet channel 10 at the center of the annular cavity 1, which can realize efficient cooling of the central area of the mold. The cooperation of the central cooling cavity 9 and the central water inlet channel 10 ensures that the cooling medium can quickly enter and uniformly distribute in the central area, thereby improving the cooling efficiency and temperature uniformity of the whole mold, reducing the thermal deformation of the product in the forming process, and improving the product quality.

[0030] As shown in Figure 2 Optionally, the bottom of the central cooling cavity 9 is also provided with a plurality of central water outlets 11, the central water outlets 11 are communicated with the central cooling cavity 9, and the central water outlets 11 are arranged around the circumference of the central cooling cavity 9.

[0031] The central cooling cavity 9 is provided with a plurality of central water outlets 11 at the bottom, and the central water outlets 11 are arranged around the circumference of the central cooling cavity 9, which can realize uniform discharge of the cooling liquid, improve the uniformity of the cooling effect, and avoid the problems of local overheating or insufficient cooling. Combined with the arrangement of the central cooling cavity 9 and the central water inlet channel 10, the overall cooling system can more efficiently regulate the temperature of the rubber oil seal mold, improve the forming efficiency and product quality.

[0032] The implementation principle of the rubber oil seal mold is as follows: the upper mold and the lower mold of the rubber oil seal mold are closed, and after ensuring that the annular cavity 1 is closed without error, the rubber oil seal mold is placed in the heat preservation box of the injection machine, and the pipelines and the inlet of the rubber oil seal mold are connected to prepare for the injection operation. The rubber raw material is placed in the injection machine and heated to a suitable temperature and pressure to ensure that the raw material has good fluidity. The injection machine is started, and the heated rubber raw material is uniformly injected into the annular cavity 1 through the injection pipe 2. Since the injection pipe 2 is arranged in the vertical direction and is distributed at equal intervals, the rubber material can be uniformly filled in the cavity from multiple directions, avoiding the problems of rubber material accumulation or uneven filling. After the injection is completed, the cooling system is started, and cooling water is introduced through the edge water inlet channel 3. Since the edge water inlet channel 3 is connected with the symmetrically arranged arc-shaped exhaust cooling channel 4, the cooling water can quickly and uniformly flow through the entire cavity, and at the same time, the gas in the cavity is discharged through the exhaust port 5, reducing the residual bubbles and keeping the cooling system continue to work until the rubber in the rubber oil seal mold is completely cooled and solidified. The design of the central cooling cavity 9 and the central water inlet channel 10 can further improve the cooling efficiency and ensure that the temperature of the center area of the mold uniformly decreases. When the rubber oil seal is completely cooled and solidified, the upper mold and the lower mold are opened, and the formed rubber oil seal is taken out. If the overpass is provided, the rubber oil seal can be subsequently trimmed or inspected. The rubber oil seal mold is cleaned to prepare for the next injection. Whether the injection pipe 2, the exhaust port 5, the cooling channel and the like are blocked or worn is checked to ensure the normal operation of the mold.

[0033] The above are preferred embodiments of the present application, and do not limit the protection scope of the present application, therefore: any equivalent changes made on the structure, shape, principle of the present application should be covered within the protection scope of the present application.

Claims

1. A rubber oil seal mold characterized by, The application relates to a ring-shaped cavity (1) and a plurality of glue injection pipes (2) arranged along a vertical direction, the bottom of the glue injection pipes (2) being communicated with the ring-shaped cavity (1), the glue injection pipes (2) being equidistantly arranged around the central axis of the ring-shaped cavity (1), and the distance between the glue injection pipes (2) and the central axis of the ring-shaped cavity (1) being smaller than the radius of the ring-shaped cavity (1). An edge water inlet channel (3) is provided with an edge water inlet (7). Two exhaust cooling channels (4) are arranged symmetrically on both sides of the edge water inlet channel (3), one end of the exhaust cooling channels (4) being communicated with the edge water inlet channel (3), and the other end being provided with an edge water outlet. The exhaust cooling channels (4) are coaxially arranged with the ring-shaped cavity (1). The exhaust cooling channels (4) are communicated with the ring-shaped cavity (1) through a plurality of exhaust ports (5). The cross-sectional area of the exhaust port (5) is inversely proportional to the distance from the edge water inlet channel (3).

2. The rubber grommet mold of claim 1, wherein, A plurality of edge exhaust channels (6) are arranged along a vertical direction, the bottom of the edge exhaust channels (6) being communicated with the ring-shaped cavity (1), and the edge exhaust channels (6) being equidistantly arranged around the circumference of the ring-shaped cavity (1).

3. The rubber grommet mold of claim 1, wherein, A transition port (8) is arranged between the glue injection pipes (2) and the ring-shaped cavity (1).

4. The rubber grommet mold of claim 1, wherein, A central cooling cavity (9) is coaxially arranged at the center of the ring-shaped cavity (1), and a central water inlet channel (10) is arranged along a vertical direction, the bottom of the central water inlet channel (10) being communicated with the central cooling cavity (9), and the central water inlet channel (10) being arranged at the central axis of the central cooling cavity (9).

5. The rubber grommet mold of claim 1, wherein, The bottom of the central cooling cavity (9) is further provided with a plurality of central water outlets (11) which are communicated with the central cooling cavity (9) and are arranged around the circumference of the central cooling cavity (9).

6. The rubber grommet mold of claim 5, wherein, ​

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