Sealing structure for half-surrounded cushion vulcanization mold

Abstract

The utility model discloses a half-surrounded cushion vulcanization mold glue sealing structure, which relates to the technical field of automobile parts, and comprises an upper mold body and a lower mold body which are oppositely arranged, an upper mold insert is embedded at the bottom of the upper mold body, and an upper mold core is arranged at the bottom of the upper mold insert; a half is arranged between the upper mold body and the lower mold body, and a cavity is defined by the upper mold insert, the upper mold core and the half; the top of the floating top block is used for placing a framework; a limiting guide groove is formed in the top of the lower die body. The floating ejector block is arranged in the limiting guide groove and is in clearance fit with the limiting guide groove. The elastic element is arranged between the floating ejector block and the limiting guide groove and used for providing elastic support for the floating ejector block. The mounting position of the elastic element is optimized, so that the sliding fit surface of the floating block is far away from the cavity, and the failure of the elastic glue sealing mechanism caused by glue leakage of the fit surface is eliminated.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile parts, in particular to a semi-enclosed soft pad vulcanized mold sealing structure. Background Art

[0002] Existing suspension cushions include upper cushions, limit blocks, and lower cushions. The cushions often need to be embedded in a metal frame to reduce rubber wear. The product structure of the suspension cushion determines that due to the tolerance of the size of the metal frame, in order to eliminate production defects such as glue leakage caused by product size fluctuations, sealing ribs need to be set in the vulcanization mold. During the vulcanization mold design process, the sealing rib part is usually designed as an insert plus an elastic element to increase the service life of the sealing rib. The mating surface between the sealing rib insert and the mold body is usually set in the mold cavity. The matching accuracy of the mating surface is extremely high. Leakage at the mating surface will cause the elastic element to fail, and eventually lead to damage to the sealing rib. Utility Model Content

[0003] In response to the defects existing in the prior art, the purpose of the present utility model is to provide a semi-enclosed soft cushion vulcanization mold sealing structure. By optimizing the installation position of the elastic element, the sliding mating surface of the floating block is kept away from the cavity, thereby eliminating the failure of the elastic sealing mechanism caused by glue leakage from the mating surface.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is: a semi-enclosed soft cushion vulcanization mold sealing structure, including an upper mold body and a lower mold body arranged relatively to each other, and an upper mold insert is embedded in the bottom of the upper mold body, and an upper mold core is arranged at the bottom of the upper mold insert; a half is arranged between the upper mold body and the lower mold body, and the upper mold insert, the upper mold core and the half surround the molding cavity, and also include a floating top block and an elastic element; the top of the floating top block is used to place the skeleton; a limiting guide groove is provided on the top of the lower mold body, and the floating top block is arranged in the limiting guide groove and is clearance-matched with it; the elastic element is arranged between the floating top block and the limiting guide groove to provide elastic support for the floating top block.

[0005] A further improvement is that it also includes a limiting screw, which passes through the floating top block and is threadedly connected to the lower mold body, and is used to adjust the initial gap between the floating top block and the bottom wall of the limiting guide groove.

[0006] A further improvement is that a raised portion is provided at the top center of the floating top block, and a groove matching the raised portion is provided at the bottom of the upper mold core.

[0007] A further improvement is that the elastic element is a disc spring or a coil spring.

[0008] A further improvement is that the upper mold core is fixedly connected to the upper mold insert by fastening screws.

[0009] A further improvement is that a limiting fixing groove is provided at the bottom of the upper mold insert, and the top of the upper mold core is embedded in the limiting fixing groove and has an interference fit therewith.

[0010] A further improvement is that the upper mold insert is provided with a glue injection hole connected to the mold cavity.

[0011] A further improvement is that a flow channel plate is provided on the top of the upper mold body.

[0012] A further improvement is that a material taking plate is provided between the upper mold body and the runner plate.

[0013] The beneficial effects of the present invention are:

[0014] In this utility model, by optimizing the installation position of the elastic element, the sliding mating surface of the floating block is positioned away from the mold cavity, eliminating failure of the elastic seal mechanism caused by glue leakage from the mating surface. During production, the skeleton is placed on the floating top block. When the mold is closed, the vulcanization equipment provides pressure to press the floating block to the designed dead center position. During this process, the sealing rib only needs to overcome the elastic force provided by the elastic element, effectively extending the service life of the mold.

[0015] 2. In the present invention, the skeleton floating top block plus elastic element is adopted, which reduces the difficulty of mold processing.

[0016] 3. In the present invention, by changing the installation position of the elastic element, the service life of the original mold insert sealing rib is increased from 1,000 times to 3,000 times. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a structural diagram of a semi-enclosed soft cushion vulcanized mold sealing structure in an embodiment of the present utility model;

[0018] Figure 2 Schematic diagram of the structure of the upper mold insert, half and upper mold core in the embodiment of the present utility model;

[0019] Figure 3 It is a structural schematic diagram of the lower mold body, floating top block and elastic element in an embodiment of the present utility model.

[0020] Reference numerals:

[0021] 1-upper mold insert; 11-limiting fixing groove; 12-glue injection hole; 2-lower mold body; 21-limiting guide groove; 3-half; 4-upper mold core; 41-fastening screw; 42-groove; 5-cavity; 6-floating top block; 61-limiting screw; 62-protrusion; 7-elastic element; 8-upper mold body; 81-feeding plate; 82-runner plate. DETAILED DESCRIPTION

[0022] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar numbers throughout represent the same or similar elements or elements with the same or similar functions.

[0023] In the description of the present invention, it should be noted that, for directional words, such as the terms "center", "horizontal (X)", "longitudinal (Y)", "vertical (Z)", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and so on, indicating directions and positional relationships are based on the directions or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and cannot be understood as limiting the specific protection scope of the present invention.

[0024] The following description of the embodiments of the present invention is provided in conjunction with the accompanying drawings to further describe the specific embodiments of the present invention so that the technical solutions and beneficial effects of the present invention are more clearly understood. The following description of the embodiments with reference to the accompanying drawings is for illustrative purposes only and is intended to explain the present invention, but is not to be construed as limiting the present invention.

[0025] See also Figures 1 to 3 As shown, an embodiment of the present invention provides a semi-enclosed cushion vulcanization mold sealing structure, including an upper mold body 8 and a lower mold body 2 arranged relatively to each other, and an upper mold insert 1 is embedded in the bottom of the upper mold body 8, and an upper mold core 4 is provided at the bottom of the upper mold insert 1; a half 3 is provided between the upper mold body 8 and the lower mold body 2, and the upper mold insert 1, the upper mold core 4 and the half 3 surround the molding cavity 5, and also include a floating top block 6 and an elastic element 7; specifically, the upper mold core 4 is fixedly connected to the upper mold insert 1 by a fastening screw 41. A limited fixing groove 11 is provided at the bottom of the upper mold insert 1, and the top of the upper mold core 4 is embedded in the limited fixing groove 11 and has an interference fit therewith (H7 / p6). The upper mold insert 1 is provided with a glue injection hole 12 connected to the molding cavity 5. A flow channel plate 82 is provided at the top of the upper mold body 8. A material removal plate 81 is provided between the upper mold body 8 and the flow channel plate 82.

[0026] The top of the floating top block 6 is used to place the skeleton; specifically, a protrusion 62 is provided at the center of the top of the floating top block 6, and a groove 42 adapted to the protrusion 62 is provided at the bottom of the upper mold core 4.

[0027] A limiting guide groove 21 is provided at the top of the lower mold body 2, and the floating top block 6 is provided in the limiting guide groove 21 and cooperates with the clearance therein; specifically, it also includes a limiting screw 61, which passes through the floating top block 6 and is threadedly connected to the lower mold body 2, and is used to adjust the initial gap between the floating top block 6 and the inner bottom wall of the limiting guide groove 21.

[0028] The elastic element 7 is provided between the floating top block 6 and the limiting guide groove 21, and is used to provide elastic support for the floating top block 6. Specifically, the elastic element 7 is a disc spring or a coil spring.

[0029] The utility model places the metal skeleton on the floating top block and adjusts the initial gap between the floating top block and the lower mold to ensure that the core sealing rib only needs to overcome the elastic force provided by the elastic element during the vulcanization process.

[0030] In the description of the specification, reference to the terms "one embodiment," "preferably," "example," "specific example," or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. The schematic expressions of the above terms in this specification do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any appropriate manner in any one or more embodiments or examples.

[0031] Through the description of the above structure and principle, technical personnel in the relevant technical field should understand that the present invention is not limited to the above specific implementation methods, and improvements and substitutions based on the present invention using the well-known technology in the field all fall within the scope of protection of the present invention and should be defined by the claims.

Claims

1. A semi-enclosed cushion vulcanization mold sealing structure, comprising an upper mold body (8) and a lower mold body (2) arranged relatively to each other, wherein an upper mold insert (1) is embedded at the bottom of the upper mold body (8), and an upper mold core (4) is arranged at the bottom of the upper mold insert (1); a half (3) is arranged between the upper mold body (8) and the lower mold body (2), and the upper mold insert (1), the upper mold core (4) and the half (3) surround a molding cavity (5), characterized in that: It also includes a floating top block (6) and an elastic element (7); The top of the floating top block (6) is used to place the skeleton; A limiting guide groove (21) is provided on the top of the lower mold body (2), and the floating top block (6) is provided in the limiting guide groove (21) and is clearance-matched therewith; The elastic element (7) is arranged between the floating top block (6) and the limiting guide groove (21) and is used to provide elastic support for the floating top block (6).

2. The semi-enclosed soft cushion vulcanization mold sealing structure according to claim 1, characterized in that: It also includes a limiting screw (61), which passes through the floating top block (6) and is threadedly connected to the lower mold body (2) for adjusting the initial gap between the floating top block (6) and the inner bottom wall of the limiting guide groove (21).

3. The semi-enclosed soft cushion vulcanization mold sealing structure according to claim 1, characterized in that: A convex portion (62) is provided at the center of the top of the floating top block (6), and a groove (42) adapted to the convex portion (62) is provided at the bottom of the upper mold core (4).

4. The semi-enclosed soft cushion vulcanization mold sealing structure according to claim 1, characterized in that: The elastic element (7) is a disc spring or a coil spring.

5. The semi-enclosed soft cushion vulcanization mold sealing structure according to claim 1, characterized in that: The upper mold core (4) is fixedly connected to the upper mold insert (1) via a fastening screw (41).

6. The semi-enclosed soft cushion vulcanization mold sealing structure according to claim 1, characterized in that: A limiting fixing groove (11) is provided at the bottom of the upper mold insert (1), and the top of the upper mold core (4) is embedded in the limiting fixing groove (11) and is interference-fitted therewith.

7. The semi-enclosed soft cushion vulcanized mold sealing structure according to claim 1, characterized in that: The upper mold insert (1) is provided with a glue injection hole (12) communicating with the mold cavity (5).

8. The semi-enclosed soft cushion vulcanization mold sealing structure according to claim 1, characterized in that: A flow channel plate (82) is provided on the top of the upper mold body (8).

9. The semi-enclosed soft cushion vulcanization mold sealing structure according to claim 8, characterized in that: A material taking plate (81) is provided between the upper mold body (8) and the flow channel plate (82).

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