Anti-flash vulcanization mold for high-hardness rubber part production

Abstract

The anti-flash vulcanization mold for producing the high-hardness rubber part comprises an upper mold, a middle mold and a lower mold, the middle mold is located below the upper mold and arranged between the upper mold and the lower mold, a stepped hole is formed in the middle of the upper mold in a matched mode, an upper mold pressing sleeve is arranged in the stepped hole of the upper mold in a matched mode, and a lower mold pressing sleeve is arranged in the lower mold. A through hole is formed in the middle of the upper die pressing sleeve, an upper die core is arranged in the through hole, the top of the upper die core is matched with a detection assembly, the bottom of the detection assembly is matched with a communication assembly, and a moving block is arranged at the bottom of the communication assembly. The problems that the manufacturing cost of parts is increased and the abrasion condition of the mold cannot be identified due to the fact that the molten material flows out of a gap for mold closing to form a redundant edge part are solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to vulcanization mould technical field especially is involved in a kind of flash prevention vulcanization mould for high-hardness rubber part production. BACKGROUND

[0002] Mould is the various moulds and tools of the desired product obtained by injection molding, blow molding, extrusion, die casting or forging forming, smelting, stamping etc. in industrial production, and mould is the tool for making shaped objects. Such tool is composed of various parts, and different moulds are composed of different parts. It realizes the machining of object shape mainly through the change of the physical state of the material being formed.

[0003] Among them, the Chinese patent document with patent application number CN202021911823.7 discloses a vulcanization mould for high-hardness rubber parts, relating to a vulcanization mould for high-hardness rubber parts, comprising an upper mould, a middle mould and a lower mould. The upper mould is matched with a stepped hole in the middle. The upper mould is matched with an upper mould pressing sleeve in the stepped hole. The upper mould pressing sleeve is matched with a through hole in the middle. The through hole is matched with an upper mould core slidingly arranged inside. The upper mould core comprises a core rod matched with the through hole and an end cover fixedly connected to the lower end of the core rod. The utility model has the advantages of simple structure, reasonable design, and can realize the deepening of the hand of double-layer gloves into the part to exert force, ensure that the rubber part is taken out under small deformation, thereby avoiding tearing and greatly improving the qualified rate. The problem of difficult demoulding is solved, effectively avoiding the increase of labor intensity of workers and the waste of materials.

[0004] In the process of rubber vulcanization molding, flash is prone to occur. The generation of flash is often due to the unfirmness of the fixed mold and the movable mold, or the gap between the molds due to long-term wear, which causes the molten material to flow out from the gap between the molds to form the excess edge part. Although the generation of flash does not affect the overall of the injection molded part, it increases the post-processing process, accordingly increases the manufacturing cost of the part, and cannot identify the wear condition of the mold, thereby easily causing the flash condition. UTILITY MODEL CONTENTS

[0005] In view of the above situation, in order to overcome the defects of the prior art, the utility model provides a flash prevention vulcanization mould for high-hardness rubber part production. The design effectively solves the problem that the gap between the conventional molds due to long-term wear causes the molten material to flow out from the gap between the molds to form the excess edge part, which increases the manufacturing cost of the part and cannot identify the wear condition of the mold.

[0006] In order to achieve the above object, the utility model provides the following technical scheme: the utility model discloses upper mould, middle mould and lower mould, the middle mould is located below the upper mould, the middle mould is arranged between the upper mould and lower mould, the upper mould is matched with step hole in the middle, the upper mould is matched with upper mould pressing sleeve in the step hole of the upper mould, the upper mould pressing sleeve is matched with through -hole in the middle, the through -hole is equipped with upper mould core, the top of upper mould core is matched with detection assembly, the bottom of detection assembly is matched with intercommunication component, the bottom of intercommunication component is equipped with moving block.

[0007] Preferably, the detection assembly includes a cylinder, the bottom of the cylinder is connected with a pipe, the inside of the cylinder is slidably connected with a piston, the top of the piston is provided with a vertical rod, the top of the vertical rod is provided with a baffle, the bottom of the pipe is matched with the top of the intercommunication component.

[0008] Preferably, the bottom of the piston is provided with a first spring, the bottom of the first spring is connected with the bottom of the cylinder.

[0009] Preferably, the intercommunication component includes two support rods, the two support rods are symmetrically arranged front and back, the bottom of the support rod is connected with the top of the moving block.

[0010] Preferably, the left and right sides of the moving block are respectively provided with a second spring, the two second springs are symmetrically arranged left and right, the top of the second spring is connected with the upper mould core.

[0011] Compared with the prior art, the utility model has the advantages that:

[0012] Through the cooperation of the detection assembly, the air pressure sensor and the intercommunication component, the gas in the cylinder is extruded into the mold through the pipe, if there is no gap in the mold at this time, the air pressure will be in a high state and maintain stable, if there is a gap inside, the air pressure will continue to decrease, the air tightness of the mold is detected through the change of the value of the air pressure sensor, so that the wear of each module can be identified, and through the periodic air tightness investigation, the use effect of the mold can be ensured, and under the action of the two second springs, the moving block can be reset, and the upper mould core is matched with each other, the air tightness of the mold is ensured, and the flatness of the bottom of the upper mould core is maintained, and the flatness of the surface of the rubber part is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0013] Fig. 1 It is the whole structure section schematic view of the utility model.

[0014] Fig. 2 It is the cylinder and moving block cooperation structure schematic view of the utility model.

[0015] Fig. 3The upper mold core profile schematic diagram of the utility model is shown.

[0016] The figure mark: 1, upper mold;2, upper mold pressing sleeve;3, upper mold core;5, middle mold;6, lower mold;7, baffle;8, vertical rod;9, piston;10, cylinder;11, first spring;12, pipe body;13, support rod;14, moving block;15, second spring. DETAILED DESCRIPTION

[0017] The utility model discloses further detailed explanation to the specific implementation of the utility model. Figs. 1-3 The utility model discloses further detailed explanation to the specific implementation of the utility model.

[0018] The utility model discloses a upper mold 1, middle mold 5 and lower mold 6, and the middle mold 5 is located below the upper mold 1, and the middle mold 5 is arranged between the upper mold 1 and lower mold 6, and the upper mold 1 is matched with the stepped hole in the middle, and the upper mold 1 is matched with the upper mold pressing sleeve 2 in the stepped hole, and the upper mold pressing sleeve 2 is matched with the through -hole in the middle, and the through -hole is equipped with upper mold core 3, and the original mold upper mold core 3 is divided into two, and the utility model is divided into the upper mold pressing sleeve 2 and upper mold core 3, so that the diameter of the core rod of the new upper mold core 3 is smaller than that of the original mold upper mold core 3, so that there is a larger gap between the core rod and the rubber part, facilitating the realization of the hand of the double -layered glove into the part inside force, ensuring that the rubber part is taken out under the condition of smaller deformation, thereby avoiding tearing, improve the qualified rate;The straight hole of the original upper mold 1 is changed into the stepped hole in the utility model, and the upper mold pressing sleeve 2 is pressed with the upper mold 1 using the stepped hole, which can effectively prevent the upper mold pressing sleeve 2 from being pushed out or sliding when the mold ejecting upper mold core 3, and the top of the upper mold core 3 is matched with the detection assembly, and the detection assembly can detect the airtightness of the mold, so as to identify the wear condition of each module, and the bottom of the detection assembly is matched with the communication assembly, and the bottom of the communication assembly is equipped with the moving block 14, and the communication assembly moves up and down by controlling the moving block 14, and cooperates with the detection assembly to realize the pressurization operation of the mold, and identifies the stability of the internal airtightness.

[0019] The detection assembly comprises a cylinder 10, the inside of the cylinder 10 is hollow, the bottom of the cylinder 10 is provided with an air pressure sensor, the air pressure inside the cylinder 10 can be monitored in real time, the bottom of the cylinder 10 is communicated with a pipe body 12, the pipe body 12 can be inserted into the middle through hole of the upper mold core 3, the inside of the cylinder 10 is slidably connected with a piston 9, the top of the piston 9 is provided with a vertical rod 8, the top of the vertical rod 8 is provided with a baffle 7, the baffle 7 is pushed to move downward, the piston 9 is driven to move downward through the vertical rod 8, the gas inside the cylinder 10 is extruded into the mold through the pipe body 12, the outside of the pipe body 12 is sleeved with a rubber ring, which can ensure the air tightness when the gas is pressurized, with the continuous downward movement of the baffle 7, half of the gas inside the cylinder 10 will enter the mold, and then after extruding for a quarter of the stroke, the baffle 7 is no longer pressed, if there is no gap in the mold at this time, the air pressure will be in a high state and maintain stable, if there is a gap inside, the air pressure will continue to decrease, the wear condition of the mold is determined by the change of the value of the air pressure sensor, the bottom of the pipe body 12 and the top of the communication assembly are matched with each other, the bottom of the piston 9 is provided with a first spring 11, the bottom of the first spring 11 and the bottom of the cylinder 10 are connected with each other, after the detection is completed, the reset of the piston 9 can be provided with elastic force under the action of the first spring 11.

[0020] The communication assembly comprises two support rods 13, the two support rods 13 are symmetrically arranged front and back, the bottom of the support rod 13 and the top of the moving block 14 are connected with each other, the bottom of the two support rods 13 and the moving block 14 are fixedly connected, when the cylinder 10 drives the pipe body 12 to be inserted into the upper mold core 3, the two support rods 13 are pushed to move downward, the support rod 13 drives the moving block 14 to move downward, so that the moving block 14 is no longer in close contact with the upper mold core 3, the gas inside the cylinder 10 can enter the mold through the through hole inside the upper mold core 3, the left and right sides of the moving block 14 are respectively provided with a second spring 15, the two second springs 15 are symmetrically arranged, the top of the second spring 15 and the upper mold core 3 are connected with each other, after the detection is completed, the cylinder 10 and the pipe body 12 are moved upward, the support rod 13 is no longer extruded, the moving block 14 can be reset under the action of the two second springs 15, and the moving block 14 is in close contact with the upper mold core 3 again, so that the air tightness of the mold is ensured, and the flatness of the bottom of the upper mold core 3 is maintained.

[0021] The utility model discloses use, through the cooperation of detection subassembly, barometric sensor and intercommunication subassembly, the gas in the inside of cylinder 10 is extruded into the inside of mould through the tuber 12, if the inside of mould does not exist the gap at this moment, then the barometric pressure will be in higher state and maintain stable, if the inside appears the gap, then will appear the situation that barometric pressure continuously reduces, through the change of barometric sensor value, the airtightness in the inside of mould is detected to can recognize the wear condition of each module, through the airtightness of stage, can ensure the use effect of mould, and under the action of two second springs 15 can drive the reset of moving block 14, reinteracts with the upper mould core 3, ensures the airtightness in the inside of mould, and keeps the flatness of upper mould core 3 bottom, ensures the flatness of rubber part surface.

[0022] Finally, it should be noted that: the above only for the preferred embodiments of the utility model have described, and do not limit the utility model, although the utility model has been described in detail with reference to the foregoing embodiments, for the person skilled in the art, it still can modify the technical scheme recorded in the foregoing each embodiment, or equivalent replacement to part technical feature, any modification, equivalent replacement, improvement etc. that is made within the spirit and principles of the utility model, should be included in the protection scope of the utility model.

Claims

1. An anti-flash vulcanization mold for producing high-hardness rubber parts, comprising an upper mold (1), a middle mold (5) and a lower mold (6), wherein the middle mold (5) is located below the upper mold (1), and the middle mold (5) is arranged between the upper mold (1) and the lower mold (6), a step hole is matched in the middle of the upper mold (1), an upper mold sleeve (2) is matched in the step hole of the upper mold (1), a through hole is arranged in the middle of the upper mold sleeve (2), and an upper mold core (3) is arranged in the through hole, characterized in that: The top of the upper mold core (3) is equipped with a detection component, the bottom of the detection component is equipped with a communication component, and the bottom of the communication component is provided with a moving block (14).

2. The anti-flash vulcanization mold for producing high-hardness rubber parts according to claim 1, characterized in that: The detection assembly comprises a cylinder (10), the bottom of the cylinder (10) is connected to a tube (12), the interior of the cylinder (10) is slidably connected to a piston (9), the top of the piston (9) is provided with a vertical rod (8), the top of the vertical rod (8) is provided with a baffle (7), and the bottom of the tube (12) and the top of the connecting assembly cooperate with each other.

3. The anti-flash vulcanization mold for producing high-hardness rubber parts according to claim 2, characterized in that: A first spring (11) is provided at the bottom of the piston (9), and the bottom of the first spring (11) is connected to the bottom of the cylinder (10).

4. The anti-flash vulcanization mold for producing high-hardness rubber parts according to claim 2, characterized in that: The communication component comprises two support rods (13), the two support rods (13) are symmetrically arranged front to back, and the bottoms of the support rods (13) are connected to the tops of the moving blocks (14).

5. The anti-flash vulcanization mold for producing high-hardness rubber parts according to claim 1, characterized in that: Second springs (15) are respectively provided on the upper portions of the left and right sides of the moving block (14), and the two second springs (15) are symmetrically arranged on the left and right sides, and the tops of the second springs (15) are connected to the upper mold core (3).

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