Demoulding gas cap device applied to rubber buffer block mould

Abstract

The utility model relates to the field of demoulding equipment, and discloses a gas cap device applied to demoulding of a rubber buffer block mould, which comprises a mould core, a pipe cavity is arranged in the mould core, the pipe cavity vertically penetrates through the mould core, a gas cap outer frame is arranged at the top of the inner side of the pipe cavity, and the outer wall of the gas cap outer frame is cylindrical. The gas cap outer frame is fixedly connected with the mold core, a movable cavity is formed in the bottom of the gas cap outer frame and penetrates through the gas cap outer frame downwards, a funnel-shaped supporting groove is formed in the top of the gas cap outer frame, and sliding grooves are formed in the bottoms of the left side wall and the right side wall of the gas cap outer frame. According to the utility model, the rubber buffer block is ejected out of the mold cavity by utilizing the pressure of gas through the gas ejection mold core, so that the problems of adhesion, clamping stagnation and the like possibly existing in demolding are avoided, and the demolding efficiency is remarkably improved.

Description

Technical Field

[0001] This utility model relates to the field of demolding equipment, specifically an air ejector device for demolding rubber buffer block molds. Background Technology

[0002] In the production of automotive parts, existing molds for fully circular rubber bumpers often encounter problems during demolding, such as a vacuum between the mold and the fully circular rubber product, and high product clamping force making demolding difficult. This not only increases the frequency of mold repairs but also affects production efficiency and product quality stability. Therefore, designing a reasonably structured and easy-to-use air-jacking structure is a problem that needs to be solved to improve the demolding efficiency and product quality of rubber bumper molds. Utility Model Content

[0003] To overcome the above-mentioned shortcomings, this utility model provides an air ejector device for demolding rubber buffer block molds.

[0004] The technical solution adopted by this utility model is as follows:

[0005] An air ejector device for demolding rubber buffer block molds includes a mold core with a cavity extending vertically through it. An air ejector frame is located at the top inner side of the cavity, with a cylindrical outer wall. The air ejector frame is fixedly connected to the mold core. A movable cavity is located at the bottom of the air ejector frame, extending downwards through it. A funnel-shaped support groove is located at the top of the air ejector frame. Slide grooves are located at the bottom of the left and right side walls of the air ejector frame, communicating with the movable cavity. An air ejector core is located inside the support groove, with a conical upper part. The upper part of the core is adapted to the support groove, and the lower part of the air-cushioned core is cylindrical. The lower part of the air-cushioned core extends through the bottom of the support groove to the bottom of the inner side of the movable cavity. The air-cushioned core and the support groove are slidably fitted. A pin hole is opened laterally at the bottom of the air-cushioned core. The pin is inserted into the pin hole and is interference-fitted with the pin hole. The two ends of the pin are located in two sliding grooves respectively. The pin is slidably fitted with the sliding grooves. There is a spring in the movable cavity. The spring is located on the lower outer side of the air-cushioned core. The lower end of the spring abuts against the upper part of the pin, and the upper end of the spring abuts against the inner top wall of the movable cavity. An air hole is opened at the bottom of the outer wall of the mold core.

[0006] The beneficial effects of this utility model are:

[0007] This invention uses an air-cushioned core to eject the rubber buffer block from the mold cavity using gas pressure, thus avoiding problems such as adhesion and jamming that may occur during demolding, thereby significantly improving demolding efficiency.

[0008] The combination of the air-cushioned core and spring ensures that the rubber buffer block is subjected to uniform force during demolding, avoiding quality problems such as product deformation and cracks caused by improper demolding. At the same time, the smoother demolding process also reduces mold wear and damage, further improving product quality and stability.

[0009] Air-cushioned cores reduce the stress on the mold during demolding and decrease mold wear. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the structure of this utility model;

[0011] Figure 2 yes Figure 1 A sectional view;

[0012] Figure 3 This is a schematic diagram of the structure of the air-supported outer frame of this utility model;

[0013] Figure 4 yes Figure 3 Side view;

[0014] Figure 5 yes Figure 4 Cross-sectional view at point AA.

[0015] In all the attached drawings, the reference numerals are as follows: 1. Mold core; 2. Cavity; 3. Air ejector frame; 4. Movable cavity; 5. Support groove; 6. Slide groove; 7. Air ejector core; 8. Pin hole; 9. Pin; 10. Spring; 11. Air hole. Detailed Implementation

[0016] like Figure 1-5As shown: A demolding air ejector device for a rubber buffer block mold includes a mold core 1, a cavity 2 extending through the mold core 1 vertically, an air ejector frame 3 on the top inner side of the cavity 2 with a cylindrical outer wall, the air ejector frame 3 being fixedly connected to the mold core 1, a movable cavity 4 at the bottom of the air ejector frame 3 extending downward through the air ejector frame 3, a funnel-shaped groove 5 at the top of the air ejector frame 3, and sliding grooves 6 at the bottom of the left and right side walls of the air ejector frame 3, the sliding grooves 6 communicating with the movable cavity 4. An air ejector core 7 is located inside the groove 5, the upper part of the air ejector core 7 being conical. The upper part of the mold core 7 is adapted to the support groove 5. The lower part of the air ejector core 7 is cylindrical. The lower part of the air ejector core 7 extends through the bottom of the support groove 5 to the bottom of the inner side of the movable cavity 4. The air ejector core 7 and the support groove 5 are slidably fitted. The bottom of the air ejector core 7 is horizontally opened with a pin hole 8. The pin 9 is inserted into the pin hole 8. The pin 9 and the pin hole 8 are interference fitted. The two ends of the pin 9 are respectively located in two sliding grooves 6. The pin 9 and the sliding groove 6 are slidably fitted. The movable cavity 4 has a spring 10. The spring 10 is located on the lower outer side of the air ejector core 7. The lower end of the spring 10 abuts against the upper part of the pin 9. The upper end of the spring 10 abuts against the inner top wall of the movable cavity 4. The bottom of the outer wall of the mold core 1 is opened with an air hole 11.

[0017] Install the mold body of the rubber buffer block mold onto the vulcanizing machine, ensuring that the mold core 1, air ejector core 7 and other components fit tightly without loosening. The vulcanizing machine is ready to inject rubber.

[0018] The bottom of mold core 1 is in a closed state.

[0019] Start the vulcanizing machine. Molten rubber is injected into the mold cavity through the distribution channel. The rubber cools and solidifies in the mold cavity to form a rubber buffer block. After the rubber buffer block has completely cooled and solidified, start the air pressure controller.

[0020] The air pressure controller inflates the cavity 2 inside the mold core 1 through the air pipe and air hole 11.

[0021] Gas enters the movable cavity 4 of the outer frame 3 of the air top, pushing the air top core 7 to move upward.

[0022] The conical upper part of the air-cushion core 7 cooperates with the support groove 5 to ensure smooth rise, while the pin 8 slides in the slide groove 6 to maintain the stable movement of the air-cushion core 7.

[0023] Spring 10 is compressed during the ascent of air-cushion core 7, preparing for the reset of air-cushion core 7.

[0024] The air-ejector core 7 ejects the rubber buffer block from the mold cavity, achieving demolding.

[0025] Turn off the air pressure controller to stop inflation, remove the demolded rubber buffer block for subsequent processing or quality inspection, and the air-cushion core 7 will reset under the elastic action of the spring 10. This utility model only protects the mechanical parts; functions implemented through software control are not within the scope of protection of this utility model.

Claims

1. A demolding air ejector device used in rubber buffer block molds, characterized in that, The system includes a mold core (1), with a cavity (2) inside the mold core (1). The cavity (2) extends vertically through the mold core (1). An air ejector frame (3) is located at the top of the inner side of the cavity (2). The outer wall of the air ejector frame (3) is cylindrical. The air ejector frame (3) is fixedly connected to the mold core (1). A movable cavity (4) is located at the bottom of the air ejector frame (3). The movable cavity (4) extends downward through the air ejector frame (3). A support groove (5) is located at the top of the air ejector frame (3). The support groove (5) is funnel-shaped. Slide grooves (6) are located at the bottom of the left and right side walls of the air ejector frame (3). The slide grooves (6) communicate with the movable cavity (4). An air ejector core (7) is located inside the support groove (5). The upper part of the air ejector core (7) is conical and matches the upper part of the support groove (5). The lower part of the top core (7) is cylindrical. The lower part of the air-cushion core (7) extends through the bottom of the support groove (5) to the bottom of the inner side of the movable cavity (4). The air-cushion core (7) and the support groove (5) are slidably fitted. The bottom of the air-cushion core (7) has a horizontally opened pin hole (8). The pin (9) is inserted into the pin hole (8). The pin (9) and the pin hole (8) are interference fitted. The two ends of the pin (9) are respectively located in two sliding grooves (6). The pin (9) and the sliding groove (6) are slidably fitted. The movable cavity (4) has a spring (10). The spring (10) is located on the lower outer side of the air-cushion core (7). The lower end of the spring (10) abuts against the upper part of the pin (9). The upper end of the spring (10) abuts against the inner top wall of the movable cavity (4). The bottom of the outer wall of the mold core (1) has an air hole (11).

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