Rubber gasket stamping device facilitating die cleaning

By introducing a cleaning air passage and hydraulic system into the rubber gasket stamping device, automated mold cleaning is achieved, solving the problem of low efficiency of manual cleaning in existing technologies and improving production efficiency and product quality.

CN223532852UActive Publication Date: 2025-11-11NANTONG HONGTU RUBBER & PLASTIC
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Patent Information

Application Number
CN202422459125.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-10-11
Publication Date
2025-11-11
Estimated Expiration
2034-10-11

AI Technical Summary

Technical Problem

The cleaning of molds in existing rubber gasket stamping equipment relies on manual operation, resulting in low production efficiency, especially during large-scale production or frequent mold changes.

Method used

A rubber gasket stamping device was designed, which uses a cleaning air channel to spray gas for automatic cleaning. Combined with a hydraulic system and positioning components, it ensures mold cleanliness and rubber material positioning, and avoids the accumulation of impurities that may affect production.

Benefits of technology

It enables automated mold cleaning, improves production efficiency and product quality, ensures stable operation of the stamping equipment, and reduces downtime.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of rubber gasket processing, in particular to a rubber gasket stamping device convenient for cleaning a die, which comprises a bearing frame, a lower die is detachably mounted in the middle of the bottom end face of the bearing frame, a die groove is formed in the middle of the upper end face of the lower die, and a die cleaning component is arranged inside and outside the lower die; the die cleaning assembly comprises a plurality of cleaning air channels formed in the lower die, the cleaning air channels correspond to the die grooves, the die grooves are communicated with the cleaning air channels, the bottom ends of the cleaning air channels are communicated with air guide cavities formed in the lower die, and the input ends of the air guide cavities are communicated with exhaust pipes fixed in the lower die. Continuous cleaning is carried out through gas sprayed out of the cleaning gas channel, the situation that a large number of impurities are accumulated in the die cavity, and consequently a stamping device is shut down frequently for cleaning can be avoided, it is guaranteed that the stamping device can operate continuously and stably, and production efficiency is improved.
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Description

Technical Field

[0001] This utility model relates to the field of rubber gasket processing technology, and in particular to a rubber gasket stamping device that facilitates mold cleaning. Background Technology

[0002] Rubber gasket stamping is a manufacturing process that involves stamping rubber material through a die to form a gasket with a specific shape, size, and function. A rubber gasket stamping apparatus uses a die on a press to apply pressure to the rubber material, causing it to undergo plastic deformation, thereby obtaining a gasket of the desired shape and size.

[0003] After the rubber gasket stamping machine completes the stamping operation, cleaning the mold is a crucial step to ensure the quality and efficiency of subsequent production. In existing technical solutions, users mostly use tools such as brushes, sponges, or cloths dipped in appropriate amounts of cleaning agents or solvents to manually wipe the mold surface to remove residual rubber materials, oil stains, and impurities.

[0004] In practice, existing technical solutions often rely on the experience and skill of operators for manual cleaning, resulting in a relatively slow cleaning speed. For large-scale production or stamping equipment that requires frequent mold changes, manual cleaning may become a bottleneck in production efficiency. Summary of the Invention

[0005] The purpose of this invention is to provide a rubber gasket stamping device for easy cleaning of molds. By continuously cleaning with gas sprayed from the cleaning air channel, it can avoid the accumulation of a large amount of impurities in the mold groove, which would cause the stamping device to stop frequently for cleaning. This ensures that the stamping device can operate continuously and stably, improves production efficiency, and solves the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a rubber gasket stamping device for easy cleaning of molds, including a support frame, a lower mold detachably installed at the middle position of the bottom end face of the support frame, a mold groove opened at the middle position of the upper end face of the lower mold, and a mold cleaning component provided both inside and outside the lower mold;

[0007] The mold cleaning assembly includes multiple cleaning air channels formed inside the lower mold. The cleaning air channels correspond to the mold grooves and are interconnected. The bottom end of each cleaning air channel is connected to an air guide cavity formed inside the lower mold, and the input end of the air guide cavity is connected to an exhaust pipe fixed inside the lower mold.

[0008] Preferably, a hydraulic cylinder is fixedly installed at the middle position of the top of the support frame, and the output end of the hydraulic cylinder is fixedly connected to an upper template through the top surface of the support frame. An upper mold corresponding to the mold groove is detachably installed at the middle position of the lower end surface of the upper template.

[0009] Preferably, the lower mold is provided with guide and positioning components on both its inner and outer sides, and a feeding tray flush with the upper surface of the lower mold is fixedly installed at the front end of the lower mold.

[0010] Preferably, the guide positioning assembly includes a positioning post slidably mounted on the upper end face of the lower mold, and a guide sleeve is rotatably sleeved on the outside of the positioning post.

[0011] Preferably, a pressure plate is fixedly installed on the bottom end face of the positioning post, and a spring is fixedly installed on the bottom end face of the pressure plate.

[0012] Preferably, the mold clearing assembly further includes an air cavity formed inside the lower mold, and both ends of the air cavity are connected to one-way air inlet valve pipes formed on the front and rear end faces of the lower mold.

[0013] Preferably, the side of the air cavity away from the mold groove is connected to an air storage bladder, the air storage bladder and the air cavity are connected by a one-way exhaust valve pipe, and the exhaust pipe and the air storage bladder are interconnected.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. This utility model utilizes the gas ejected from the mold cleaning component to clean impurities generated in the mold groove. These impurities can affect the molding effect and precision of the rubber gasket, thus impacting its sealing performance and overall quality. Removing these impurities with the gas ejected from the cleaning air passage ensures that the rubber gasket's production quality meets standards, thereby improving product qualification rate and reliability. If a large amount of impurities accumulates in the mold groove, it may cause frequent shutdowns of the stamping device for cleaning, affecting production efficiency. Continuous cleaning with the gas ejected from the cleaning air passage avoids this situation, ensuring the stamping device can operate continuously and stably, thus improving production efficiency.

[0016] 2. The positioning column of this utility model can position the rubber material, preventing the conveyed rubber material from shifting position. At the same time, the guide sleeve installed on the positioning column makes contact with each other during the conveying of the rubber material, thereby achieving the effect of conveying guidance and further improving the convenience of conveying the rubber material. Attached Figure Description

[0017] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0018] Figure 1 This is an overall structural view of the present invention;

[0019] Figure 2 This is a schematic diagram of the internal structure of the support frame of this utility model;

[0020] Figure 3 This is a schematic diagram of the internal structure of the lower mold of this utility model;

[0021] Figure 4 This is a schematic diagram of the internal structure of the air cavity of this utility model.

[0022] Explanation of reference numerals in the attached figures:

[0023] 1. Support frame; 2. Hydraulic cylinder; 3. Upper mold plate; 4. Lower mold; 5. Feeding tray; 6. Guide and positioning assembly; 601. Positioning post; 602. Guide sleeve; 603. Pressure plate; 604. Spring; 7. Mold groove; 8. Mold cleaning assembly; 801. One-way air inlet valve pipe; 802. Air chamber; 803. One-way exhaust valve pipe; 804. Air reservoir; 805. Exhaust pipe; 806. Air guide chamber; 807. Cleaning air passage; 9. Upper mold. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] This utility model provides a technical solution:

[0026] Please see Figures 1 to 4 A rubber gasket stamping device for easy mold cleaning includes a support frame 1. A lower mold 4 is detachably installed at the middle position of the bottom end face of the support frame 1. A mold groove 7 is opened at the middle position of the upper end face of the lower mold 4. A mold cleaning component 8 is provided inside and outside the lower mold 4. A hydraulic cylinder 2 is fixedly installed at the middle position of the top end of the support frame 1. The support frame 1 can support the entire device. The output end of the hydraulic cylinder 2 passes through the top end face of the support frame 1 and is fixedly connected to an upper template 3. An upper mold 9 matching the mold groove 7 is detachably installed at the middle position of the lower end face of the upper template 3. A guide positioning component 6 is provided inside and outside the lower mold 4. The guide positioning component 6 includes a positioning post 601 slidably installed on the upper end face of the lower mold 4. A pressure plate 603 is fixedly installed on the bottom end face of the positioning post 601.

[0027] The mold cleaning assembly 8 includes multiple cleaning air channels 807 formed inside the lower mold 4. The cleaning air channels 807 correspond to the mold groove 7 and are interconnected with each other. The bottom end of the cleaning air channel 807 is connected to an air guide cavity 806 formed inside the lower mold 4. The input end of the air guide cavity 806 is connected to an exhaust pipe 805 fixed inside the lower mold 4. The mold cleaning assembly 8 also includes an air cavity 802 formed inside the lower mold 4. Both the front and rear ends of the air cavity 802 are connected to one-way air inlet valve pipes 801 formed on the front and rear end faces of the lower mold 4. An air storage bag 804 is connected to the side of the air cavity 802 away from the mold groove 7. The air storage bag 804 is connected to the air cavity 802 through a one-way exhaust valve pipe 803. The exhaust pipe 805 is interconnected with the air storage bag 804.

[0028] By adopting the above technical solution, when in use, the hydraulic cylinder 2 is activated, which drives the upper template 3 to move downward. This causes the upper template 3 to drive the upper mold 9 to move downward, and the upper mold 9 matches the mold groove 7. This allows the rubber material placed on the mold groove 7 to be stamped. The stamping of the rubber material by the upper mold 9 can cut the rubber material into rubber gaskets that match the dimensions of the upper mold 9 and the mold groove 7, thus completing the stamping preparation of the rubber gaskets. When the upper template 3 moves downward to stamp, it will first contact the positioning post 601, which can squeeze the positioning post 601 to move downward, thereby further driving the pressure plate 603 to move downward. At this time, the pressure plate 603 can squeeze the air in the air chamber 802, allowing the air in the air chamber 802 to pass through. The air enters the air reservoir 804 through the one-way exhaust valve pipe 803 for storage. After the upper mold 9 finishes stamping the rubber material in the mold groove 7, the upper mold 9 separates from the mold groove 7. Thus, there is no pressure in the mold groove 7, and the air in the air reservoir 804 can be introduced into the air guide chamber 806 through the exhaust pipe 805. The air guide chamber 806 disperses the high-pressure gas to various cleaning air channels 807. The cleaning air channels 807 can push the rubber gasket in the mold groove 7, allowing it to be demolded. Furthermore, the gas ejected from the cleaning air channels 807 can clean impurities generated in the mold groove 7. Impurities in the mold groove 7 may affect the molding effect and precision of the rubber gasket, thereby affecting its sealing performance and overall quality. Removing these impurities with the gas ejected from the cleaning air channels 807 ensures that the production quality of the rubber gasket meets standards, thereby improving the product qualification rate and reliability. If a large amount of impurities accumulates in the mold groove 7, it may cause the stamping device to frequently stop for cleaning, thus affecting production efficiency. Continuous cleaning via the gas ejected from the cleaning air passage 807 can prevent this from happening, ensuring the stamping device can operate continuously and stably, and improving production efficiency.

[0029] Specifically, such as Figures 3 to 4As shown, a feeding plate 5, which is flush with the upper surface of the lower mold 4, is fixedly installed at the front end of the lower mold 4. A guide sleeve 602 is rotatably sleeved on the outside of the positioning post 601. A spring 604 is fixedly installed on the bottom surface of the pressure plate 603. The spring 604 is designed so that when the pressure plate 603 moves downward, the spring 604 contracts and stores energy. When the pressure plate 603 does not exert much pressure, the spring 604 elastically resets itself, pushing the pressure plate 603 and the positioning post 601 back to the initial position for guiding and positioning.

[0030] By adopting the above technical solution, when in use, the rubber material can be conveyed and placed on the upper surface of the lower mold 4 for processing through the feeding tray 5. During feeding, the positioning columns 601 symmetrically arranged on the upper surface of the lower mold 4 can position the rubber material and prevent the conveyed rubber material from shifting position. At the same time, by rotating the guide sleeve 602 installed on the positioning column 601, the two come into contact with each other during the conveying of the rubber material, thereby achieving the effect of conveying guidance and further improving the convenience of conveying the rubber material.

[0031] Working principle: During use, the hydraulic cylinder 2 is activated, which drives the upper template 3 to move downwards. This causes the upper template 3 to move the upper mold 9 downwards, aligning it with the mold groove 7. This allows for the stamping of the rubber material placed on the mold groove 7. The stamping of the rubber material by the upper mold 9 cuts the rubber material into rubber gaskets that match the dimensions of the upper mold 9 and the mold groove 7, thus completing the stamping preparation of the rubber gaskets. When the upper template 3 moves downwards for stamping, it first contacts the positioning post 601, which compresses the positioning post 601 and moves it downwards. This further drives the pressure plate 603 downwards, at which point the pressure plate 603 can allow air to enter the air chamber 802. The compression process allows air in the air chamber 802 to enter the air storage bladder 804 for storage through the one-way exhaust valve pipe 803. After the upper mold 9 finishes pressing the rubber material in the mold groove 7, the upper mold 9 separates from the mold groove 7, so there is no pressure in the mold groove 7. Thus, the air in the air storage bladder 804 can be introduced into the air guide chamber 806 through the exhaust pipe 805. The air guide chamber 806 can disperse the high-pressure gas to each cleaning air channel 807. The cleaning air channel 807 can push the rubber gasket in the mold groove 7, allowing the rubber gasket to be demolded from the mold groove 7. Furthermore, the gas ejected from the cleaning air channel 807 can clean the impurities generated in the mold groove 7.

[0032] Secondly, when the extrusion positioning post 601 moves downward, it can drive the pressure plate 603 to move downward. When the pressure plate 603 moves downward, the spring 604 contracts and stores energy. When the pressure plate 603 has no large pressure, the spring 604 elastically resets, pushing the pressure plate 603 and the positioning post 601 back to their initial positions for guiding and positioning. When the positioning post 601 returns to its initial position, it cooperates with the feeding tray 5 to transport and place the rubber material onto the upper surface of the lower mold 4 for processing. During feeding, the positioning posts 601, which are symmetrically arranged on the upper surface of the lower mold 4, can position the rubber material. At the same time, by rotating the guide sleeve 602 installed on the positioning post 601, the two come into contact with each other during the conveying of the rubber material, thereby achieving the effect of conveying and guiding.

[0033] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A rubber gasket stamping device for easy mold cleaning, comprising a support frame (1), characterized in that: The lower mold (4) is detachably installed at the middle position of the bottom end face of the support frame (1). A mold groove (7) is opened at the middle position of the upper end face of the lower mold (4). A mold cleaning component (8) is provided on both the inner and outer sides of the lower mold (4). The cleaning assembly (8) includes multiple cleaning air channels (807) opened inside the lower mold (4). The cleaning air channels (807) correspond to the mold groove (7) and are interconnected with each other. The bottom end of the cleaning air channel (807) is connected to an air guide cavity (806) opened inside the lower mold (4). The input end of the air guide cavity (806) is connected to an exhaust pipe (805) fixed inside the lower mold (4).

2. The rubber gasket stamping device for convenient mold cleaning according to claim 1, characterized in that: A hydraulic cylinder (2) is fixedly installed at the middle position of the top of the support frame (1). The output end of the hydraulic cylinder (2) is fixedly connected to the upper template (3) through the top surface of the support frame (1). An upper mold (9) matching the mold groove (7) is detachably installed at the middle position of the lower end surface of the upper template (3).

3. The rubber gasket stamping device for convenient mold cleaning according to claim 1, characterized in that: The lower mold (4) is provided with a guide positioning component (6) on both the inside and outside. The front end of the lower mold (4) is fixedly installed with a feeding tray (5) that is flush with the upper surface of the lower mold (4).

4. The rubber gasket stamping device for convenient mold cleaning according to claim 3, characterized in that: The guide positioning component (6) includes a positioning post (601) that is slidably mounted on the upper end face of the lower mold (4), and a guide sleeve (602) is rotatably sleeved on the outside of the positioning post (601).

5. The rubber gasket stamping device for convenient mold cleaning according to claim 4, characterized in that: A pressure plate (603) is fixedly installed on the bottom end face of the positioning post (601), and a spring (604) is fixedly installed on the bottom end face of the pressure plate (603).

6. The rubber gasket stamping device for convenient mold cleaning according to claim 1, characterized in that: The clearing assembly (8) also includes an air cavity (802) opened inside the lower mold (4), and both ends of the air cavity (802) are connected to one-way air inlet valve pipes (801) opened on the front and rear end faces of the lower mold (4).

7. A rubber gasket stamping device for convenient mold cleaning according to claim 6, characterized in that: The air chamber (802) is connected to an air storage bladder (804) on the side away from the mold groove (7). The air storage bladder (804) and the air chamber (802) are connected by a one-way exhaust valve pipe (803). The exhaust pipe (805) is connected to the air storage bladder (804).