Integrated decomposition demolding component for rubber plug forming module and rubber plug forming module

Abstract

The invention discloses an integrated decomposition demolding component for a rubber plug forming module and the rubber plug forming module, and belongs to the technical field of rubber product processing. The integrated decomposition demolding component for the rubber plug forming module comprises limiting bosses and fixing blocks, and the limiting bosses are integrally arranged above the left side edge and the right side edge of a square frame and used for limiting displacement of a half middle mold in the left-right direction; the fixing block is fixedly arranged at the end of at least one of the left side edge and the right side edge of the square frame, so that the fixing block can position the half middle mold in the front-back direction. After the rubber plug is formed and during decomposition demolding, the integrated decomposition demolding component can limit displacement of the half middle mold in all directions, errors caused by manual operation are reduced, damage caused by falling of the half middle mold is reduced, damage to a mold core due to improper placement of the half is avoided, and the service life of the mold is prolonged.

Description

Technical Field

[0001] The invention belongs to the technical field of rubber product processing, and more specifically relates to an integrated debonding demoulding component for a rubber plug molding module and the rubber plug molding module. Background Art

[0002] At present, in the rubber, plastic, metal products and other processing and manufacturing industries, rubber plugs are widely used in various fields such as automobiles due to their good elasticity, large deformation, good fit and other advantages. This type of rubber plug is formed using a Haver structure. Due to manual operation errors during demolding, the Haver middle mold often damages the lower mold core and the Haver middle mold itself, which reduces the mold life and affects production capacity.

[0003] After searching, it was found that the Chinese utility model patent document (authorization announcement number CN218399276U) disclosed an automobile shock-absorbing rubber bushing injection mold, in which a first slider and a second slider are respectively arranged on both sides of a core assembly arranged in a row. The two sliders can synchronously approach or move away from the cavity to realize the opening and closing of the two sliders; when the two sliders are opened, a demolding mechanism is used to eject all the vulcanized bushings at one time, so that the mold can be automatically opened and closed on the vulcanizing machine, which improves the efficiency of removing parts and avoids damage to the shock-absorbing rubber bushings.

[0004] In practice, although the above solution solves the problem of automatic opening and closing of the mold on the vulcanizing machine, there is still a problem that the mold core and the mold may be damaged to a certain extent due to careless operation during the removal process. Therefore, how to reduce the damage rate of the mold core and the mold in the vulcanization molding process is an urgent problem to be solved in the industrial production of such rubber products. Summary of the invention

[0005] 1. Technical problem to be solved by the invention

[0006] The object of the present invention is to provide an integrated detachable demolding component for a rubber plug molding module and a rubber plug molding module, which can limit the displacement of the Haver middle mold during the demolding process of the product after the rubber plug is formed by the detachable demolding component, effectively avoiding manual operation errors, greatly reducing the damage rate of the module components such as the mold core, Haver middle mold, and lower mold, and improving the product production capacity.

[0007] 2. Technical solution

[0008] To achieve the above object, the present invention provides the following technical solutions:

[0009] An integrated demoulding component for a rubber plug molding module comprises a square frame, wherein the front and rear sides of the square frame are provided with through holes, and the positioning pins can pass through the through holes and be slidably connected with the lower mold of the rubber plug molding module; the left and right sides of the square frame are used to support the Haval middle mold; the integrated demoulding component also comprises:

[0010] A limiting boss, which is integrally arranged above the left and right sides of the square frame and is used to limit the displacement of the Haval middle mold in the left and right directions;

[0011] A fixed block is fixedly arranged at the end of at least one of the left and right sides of the square frame, so that the fixed block can position the Haval middle mold in the front-back direction.

[0012] Furthermore, the limiting boss is in the shape of an elongated strip and is arranged above the left and right sides of the square frame.

[0013] Furthermore, the upper surface of the limiting boss is lower than the upper surface of the end of the Haval middle mold in the vertical direction.

[0014] Furthermore, at least a portion of the front view of the fixing block in the left-right direction overlaps with the front view of the Haval middle mold.

[0015] Furthermore, the fixing blocks are fixedly arranged at the ends of the left and right sides of the square frame.

[0016] Furthermore, the fixing blocks are fixedly arranged at the ends of the left and right sides of the square frame close to the front side of the square frame.

[0017] Furthermore, the fixing block is movably connected with a pressing plate, and the pressing plate is configured to be pressed on the end of the Haver middle mold when it is placed horizontally.

[0018] Furthermore, the pressing plate is hinged to the fixing block, and the pressing plate can rotate in a vertical plane with the fixing block as an axis.

[0019] Furthermore, with the horizontal plane as the bottom surface, the rotation angle range of the pressing plate is between 90 degrees and 150 degrees.

[0020] Furthermore, the matching clearance between the limiting boss and the Haval middle mold in the left-right direction is between 0.5 mm and 3.0 mm, and the matching clearance between the fixing block and the Haval middle mold in the front-back direction is between 0.5 mm and 3.0 mm.

[0021] Furthermore, it also includes a stopper, which is fixedly arranged at the left and right ends of the rear side of the square frame.

[0022] Another aspect of the present invention also relates to a rubber plug molding module, which is provided with an injection plug, an upper mold, a Havers middle mold and a lower mold from top to bottom, the upper mold having an injection cavity, a glue injection hole and an upper mold core for molding the inner hole of the rubber plug, the lower mold having a boss and a lower mold core for molding the outer shape of the rubber plug, and the above-mentioned integrated decomposition demolding component for the rubber plug molding module.

[0023] Furthermore, the Haval middle mold is widened and thickened, with a thickness of not less than 15 mm and a width of not less than 30 mm, and the boss arranged on the lower mold is also increased in thickness accordingly.

[0024] 3. Beneficial effects

[0025] Compared with the prior art, the technical solution provided by the present invention has the following beneficial effects:

[0026] (1) The present invention provides an integrated debonding demolding component for a rubber plug molding module, comprising a limiting boss and a fixing block. The limiting boss is integrated above the left and right sides of the square frame to limit the displacement of the Haver middle mold in the left and right directions; the fixing block is fixedly arranged at the end of at least one of the left and right sides of the square frame, so that the fixing block can position the Haver middle mold in the front and back directions. After the rubber plug is formed, when it is debonded and demolded, the integrated debonding demolding component can limit the displacement of the Haver middle mold in all directions, reduce manual operation errors, reduce damage caused by the Haver middle mold falling, avoid damage to the mold core caused by improper Haver placement, and increase the life of the mold.

[0027] (2) The integrated debonding demolding member for a rubber plug molding die set of the present invention also includes a pressing plate, which is hinged to the fixed block, and can rotate in a vertical plane with the fixed block as an axis. The pressing plate is configured to be pressed against the end of the Haver middle mold when it is placed horizontally. The use of this technical solution can further improve the limiting effect of the integrated debonding demolding member on the Haver middle mold, and further reduce the probability of the mold core and other mold components being damaged.

[0028] (3) The present invention also relates to a molding die set for a rubber stopper. The Haval middle die is widened and thickened, with a thickness of not less than 15 mm and a width of not less than 30 mm. The boss arranged on the lower die is also increased in thickness accordingly, which can effectively prevent the Haval middle die from deformation during the molding and demolding process, and further reduce the risk of possible damage to the mold. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of a debonding demoulding member of the present invention;

[0030] Figure 2 is a cross-sectional schematic diagram of a molding die of the present invention;

[0031] Figure 3 It is a schematic top view of the molding die of the present invention.

[0032] Explanation of the numbers in the schematic diagram: 1. plunger, 2. upper mold, 21. injection cavity, 22. glue injection hole, 23. upper mold core, 3. Haval middle mold, 4. lower mold, 41. boss, 42 lower mold core, 5. square frame, 51. limiting boss, 52. fixing block, 53. stopper, 54 pressure plate. DETAILED DESCRIPTION

[0033] In order to enable those skilled in the art to better understand the technical solution of the present invention, the technical solution of the present invention is clearly and completely described below in conjunction with the accompanying drawings and embodiments.

[0034] The structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification, and are not used to limit the limiting conditions for the implementation of the present invention, so they have no substantial technical significance. Any modification of the structure, change of the proportion relationship or adjustment of the size, without affecting the effects and purposes that can be achieved by the present invention, should still fall within the scope of the technical contents disclosed by the present invention. At the same time, the terms such as "upper", "lower", "front", "back", "left", "right" and so on quoted in this specification are only for the convenience of description, and are not used to limit the scope of implementation. The change or adjustment of their relative relationship should also be regarded as the scope of implementation of the present invention without substantially changing the technical contents.

[0035] The molding module of the rubber plug in the prior art adopts a decomposition demoulding structure, which decomposes the outer frame into at least two parts, is installed on the machine, and is not integrated with other parts of the mold. With this structure, the Haval middle mold is difficult to position and is greatly affected by manual misoperation. The Haval middle mold and the lower mold core are often damaged, the mold life is very short, and the production capacity of the product is also greatly limited.

[0036] The basic concept of the present invention is to integrate the demoulding components to position the Haval middle mold from all directions, thereby preventing damage to the Haval middle mold and the lower mold during the demoulding process, thereby extending the service life of the mold.

[0037] like Figures 1 to 3 As shown, an integrated debonding demolding component for a rubber plug molding module of the present invention includes a square frame 5, and the front and rear side edges of the square frame 5 are provided with through holes, and the positioning pins can pass through the through holes to be slidably connected with the lower mold 4 of the rubber plug molding module; the left and right side edges of the square frame 5 are used to support the Haval middle mold 3.

[0038] For the convenience of description, it is assumed that when the operator faces the square frame, the side away from the operator is the front side of the square frame, the side next to the operator is the back side, the side on the left hand side is the left side, and the side on the right hand side is the right side. The square frame 5 is mainly used to carry the Haval middle mold 3. The two ends of the Haval middle mold are carried on the sides of the left and right sides of the square frame 5. The Haval middle mold can slide forward and backward along the two sides of the square frame. Rubber plug products are placed in the Haval middle mold. By opening and flipping the Haval middle molds, the rubber plug products can be unloaded and collected one by one.

[0039] The integrated debonding demolding component also includes: a limiting boss 51, which is integrally arranged above the left and right sides of the square frame 5, and is used to limit the displacement of the Haval middle mold 3 in the left and right directions; a fixed block 52, which is fixedly arranged at the end of at least one of the left and right sides of the square frame 5, so that the fixed block 52 can position the Haval middle mold 3 in the front and rear directions.

[0040] The limiting boss 51 is formed integrally with the square frame, and the limiting boss can be regarded as a part of the frame. Of course, a limiting boss can also be made and then fastened to the square frame. If a detachable connection method is adopted, when the limiting boss is deformed or damaged, a new limiting boss can be replaced and reinstalled on the square frame, saving economic costs.

[0041] The limiting bosses 51 are arranged in a long strip shape above the left and right sides of the square frame 5. The distance between the side walls of the two limiting bosses is just equivalent to the length of the Haval middle mold. Therefore, the limiting bosses form a limit on the Haval middle mold in the left and right directions.

[0042] Preferably, the upper surface of the limiting boss 51 is lower than the upper surface of the end of the Haver middle mold 3 in the vertical direction. In this way, during the demoulding process, it is convenient to hold the end of the Haver middle mold, thereby improving the efficiency of collecting the rubber plug. Of course, it cannot be too low. If the upper surface of the boss 51 is lower than the lower surface of the end of the Haver middle mold 3 in the vertical direction, it will be difficult for the boss to limit the Haver middle mold 3 in the left and right directions. This phenomenon must be avoided. The dimension of the upper surface of the boss 51 lower than the upper surface of the end of the Haver middle mold 3 in the vertical direction is less than or equal to 2 mm. Within this range, it is possible to achieve a firm left and right limit on the Haver middle mold 3, and it is also convenient for the operator to hold and control the Haver middle mold, thereby improving the demoulding efficiency.

[0043] The fixed block 52 is fixedly set at the end of at least one side of the left and right sides of the square frame 5, so that the fixed block 52 can position the Haval middle mold 3 in the front-to-back direction. It can be set at the front end of the left side of the square frame, or at the front end of the right side, or one can be set at the front and rear ends of the left side of the square frame, and one can be set at the rear end of the right side of the square frame, all of which can play a role in limiting the Haval middle mold 3 in the front-to-back direction. Of course, if the fixed block 52 is set at the front end of the left and right sides of the square frame, the Haval middle mold 3 is limited in the front-to-back direction from the front end; if the fixed block 52 is set at the rear end of the left and right sides of the square frame, the Haval middle mold 3 is limited in the front-to-back direction from the rear end. Preferably, the fixed block 52 is fixedly set at the ends of the left and right sides of the square frame 5; further preferably, the fixed block 52 is fixedly set at the ends of the left and right sides of the square frame 5 close to the front side of the square frame 5.

[0044] The front view of the fixing block 52 at least partially overlaps with the front view of the Haval middle mold 3 in the left-right direction. If they cannot partially overlap, when the Haval middle mold 3 is pushed forward to the frontmost position, it cannot contact the fixing block, and naturally the fixing block cannot limit the Haval middle mold 3 in the front-back direction.

[0045] Of course, it should be noted that before the demoulding is completed, the front and rear baffles integrally connected to the lower mold and other parts of the mold can also form an actual limiting effect on the Haval middle mold. This will not be described in detail here.

[0046] The fixing block 52 is movably connected with a pressing plate 54, and the pressing plate 54 is configured to be pressed on the end of the Haver middle mold 3 when it is placed horizontally, and the pressing plate 54 can play a pressing and fixing role on the Haver middle mold 3. When the mold is separated and released, the pressing plate 54 can be removed from the fixing block 52. When the demolding is completed, the pressing plate 54 can be connected to the fixing block 52 again as needed, and then the pressing plate 54 is pressed on the end of the Haver middle mold 3.

[0047] In order to avoid repeatedly taking and placing the pressing plate, the pressing plate 54 can be preferably hinged to the fixed block 52, and the pressing plate 54 can rotate in a vertical plane with the fixed block 52 as the axis. In this way, the pressing plate 54 can be put down when the Haval middle mold 3 needs to be pressed, and can be lifted upward from the free end when it is not needed to be pressed. At this time, the connection between the pressing plate 54 and the fixed block 52 can still be maintained without removing the pressing plate 54 from the fixed block 52. When the horizontal plane is used as the bottom surface, when the angle of rotation of the pressing plate 54 is between 90 degrees and 150 degrees, the pressing plate can be lifted upward by 90 degrees to 150 degrees. At this time, the pressing plate can maintain a balanced state under the action of its own gravity without the need for external support. Of course, when the maximum angle of rotation of the pressing plate is greater than 150 degrees, although it occupies a larger working space, it does not affect the normal use of the pressing plate.

[0048] The fitting clearance between the limiting boss 51 and the Haval middle mold 3 in the left-right direction is between 0.5mm and 3.0mm, and the fitting clearance between the fixing block 52 and the Haval middle mold 3 in the front-back direction is between 0.5mm and 3.0mm. Preferably, the fitting clearance between the Haval middle mold 3 and the limiting boss 51 in the left-right direction is between 0.5mm and 1.5mm, and the fitting clearance between the Haval middle mold 3 and the fixing block 52 in the front-back direction is between 0.5mm and 1.5mm, at which time the Haval middle mold 3 can be accurately limited. When the fitting clearance is between 1.5mm and 3.0mm, the fitting clearance is slightly loose, and the limiting of the Haval middle mold is not accurate enough, which can only slightly increase the mold life and the production capacity of the product.

[0049] In addition, the integrated demoulding component further comprises a stopper 53 , which is fixedly arranged at the left and right ends of the rear side of the square frame 5 , and can effectively prevent the Haval middle mold 3 from falling off during the demoulding process.

[0050] Another aspect of the present invention relates to a rubber plug molding die set, which is provided with an injection plug 1, an upper die 2, a Havers middle die 3 and a lower die 4 from top to bottom, the upper die has an injection cavity 21, a glue injection hole 22 and an upper die core 23 for molding the inner hole of the rubber plug, the lower die is provided with a boss 41 and a lower die core 42 for molding the outer shape of the rubber plug, and also includes the integrated debonding demolding component for the rubber plug molding die set as described above. The Havers middle die is widened and thickened, with a thickness of not less than 15 mm and a width of not less than 30 mm, and the boss 41 provided on the lower die is also increased in thickness accordingly to prevent the Havers middle die 3 from deformation. The fitting clearance around the injection plug 1 and the injection cavity 21 is 0.08-0.12mm; the fitting clearance in the vertical direction between the injection plug 1 and the injection cavity 21 is 0.1-0.3mm; the upper end of the injection hole 22 is rounded, which is R0.5-R2mm; the lower end of the injection hole 22 is an inclined hole, and the bottom diameter of the inclined hole is D0.8-D1.5mm; the core 23 of the inner hole of the molded rubber plug is integrally processed.

[0051] After the product is formed, the injection plug 1 is separated from the injection cavity 21, the flash in the injection cavity 21 is removed, and the flash in the injection hole 22 connected to the flash in the injection cavity is taken away; then the pressure plate 54 is turned up, the Haver middle mold 3 is separated, and the product is taken off. The block 53 can prevent the Haver middle mold 3 from falling due to improper operation; after taking off the product, the Haver middle mold 3 is put together and pushed to align with the fixed block 52. By separating the demoulding component and positioning the lower mold 4, the accurate positioning of the Haver middle mold 3 can be effectively achieved, which effectively reduces manual operation errors and increases the life of the mold.

[0052] The present invention and its embodiments are described schematically above, which is not restrictive. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. If a person skilled in the art is inspired by the above, and does not deviate from the purpose of the present invention, and does not creatively design a structure similar to the present technical solution, it shall fall within the protection scope of the present invention.

Claims

1. An integrated demoulding component for a rubber plug molding module, comprising a square frame (5), the front and rear sides of the square frame (5) are provided with through holes, and the positioning pins can pass through the through holes and be slidably connected with the lower mold (4) of the rubber plug molding module; the left and right sides of the square frame (5) are used to support the Haval middle mold (3); characterized in that: The integrated separation demoulding component also includes: A limiting boss (51), wherein the limiting boss (51) is integrally arranged above the left and right sides of the square frame (5) and is used to limit the displacement of the Haval middle mold (3) in the left and right directions; A fixed block (52) is fixedly arranged at the end of at least one of the left and right sides of the square frame (5), so that the fixed block (52) can position the Haval middle mold (3) in the front-back direction.

2. The integrated demoulding component for a rubber plug molding die set according to claim 1, characterized in that: The limiting boss (51) is in the shape of a long strip and is arranged above the left and right sides of the square frame (5).

3. The integrated demoulding component for a rubber plug molding die set according to claim 2, characterized in that: The upper surface of the limiting boss (51) is lower than the upper surface of the end of the Haver middle mold (3) in the vertical direction.

4. The integrated demoulding component for a rubber plug molding die set according to claim 1, characterized in that: At least a portion of the front view of the fixed block (52) in the left-right direction overlaps with the front view of the Haval middle mold (3).

5. The integrated demoulding component for a rubber plug molding die set according to claim 4, characterized in that: The fixing block (52) is fixedly arranged at the ends of the left and right sides of the square frame (5).

6. The integrated demoulding component for a rubber plug molding die set according to claim 5, characterized in that: The fixing block (52) is fixedly arranged on the ends of the left and right sides of the square frame (5) close to the front side of the square frame (5).

7. The integrated demoulding component for a rubber plug molding die set according to claim 6, characterized in that: The fixing block (52) is movably connected to a pressing plate (54), and the pressing plate (54) is configured to be pressed against the end of the Haversian middle mold (3) when it is placed horizontally.

8. The integrated demoulding component for a rubber plug molding die set according to claim 7, characterized in that: The pressing plate (54) is hinged to the fixing block (52), and the pressing plate (54) can rotate in a vertical plane with the fixing block (52) as an axis.

9. The integrated demoulding component for a rubber plug molding die set according to claim 8, characterized in that: With the horizontal plane as the bottom surface, the rotation angle of the pressing plate (54) ranges from 90 degrees to 150 degrees.

10. The rubber plug forming module according to claim 1, characterized in that: The matching clearance between the limiting boss (51) and the Haval middle mold (3) in the left-right direction is between 0.5 mm and 3.0 mm, and the matching clearance between the fixing block (52) and the Haval middle mold (3) in the front-back direction is between 0.5 mm and 3.0 mm.

11. The integrated demoulding component for a rubber plug molding die set according to any one of claims 1 to 10, characterized in that: It also includes a stopper (53), which is fixedly arranged at the left and right ends of the rear side of the square frame (5).

12. A rubber plug molding die set, comprising, from top to bottom, an injection plug (1), an upper die (2), a Havers middle die (3) and a lower die (4), wherein the upper die has an injection cavity (21), a glue injection hole (22) and an upper die core (23) for molding the inner hole of the rubber plug, and the lower die has a boss (41) and a lower die core (42) for molding the outer shape of the rubber plug, characterized in that: It also includes the integrated debonding demolding component for the rubber stopper molding die set according to any one of claims 1 to 11.

13. A rubber plug forming module according to claim 12, characterized in that: The Haval middle die is widened and thickened, with a thickness of not less than 15 mm and a width of not less than 30 mm, and the boss (41) provided on the lower die is also increased in thickness accordingly.

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