Mould cleaning device of vulcanization forming machine

By designing an automated mold cleaning device on the vulcanizing molding machine, and utilizing the combination of insert blocks and holes and the cleaning structure, the problems of low mold cleaning efficiency and incomplete cleaning are solved. This achieves automatic ejection and synchronous cleaning of the annular pad, thereby improving production efficiency and product quality.

CN121756491APending Publication Date: 2026-03-31CHONGQING LIHE RUBBER PROD CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-01-26
Publication Date
2026-03-31

AI Technical Summary

Technical Problem

Existing mold cleaning methods are inefficient, incomplete, and cumbersome, especially the annular pad area, which is difficult to clean, affecting product quality and production efficiency.

Method used

A mold cleaning device for a vulcanizing molding machine was designed. Through the cooperation of a translation mechanism and a lifting mechanism, the mold body is automatically transferred between different positions. The annular pad is automatically pushed out by the cooperation of the insert block and the insert hole. Combined with the scraping and blowing cleaning structure, the mold and the annular pad are thoroughly cleaned.

Benefits of technology

It enables automated cleaning of molds and ring pads, improving cleaning efficiency, eliminating cleaning dead spots, simplifying the operation process, and ensuring product quality and production efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention discloses a mold cleaning device of a vulcanization forming machine, and relates to the technical field of mold cleaning, the mold cleaning device of the vulcanization forming machine is used for cleaning a mold comprising a mold body and a demolding plate, the mold cleaning device comprises a translation mechanism and a guide structure, the free end of the translation mechanism is connected with the mold body, and the free end of the translation mechanism is connected with the demolding plate. The translation mechanism is arranged on the peripheral side of the guide structure, the guide structure is provided with a cleaning structure, a cleaning position and an abutting-out position are sequentially formed in the first horizontal direction, extending towards the vulcanization forming machine, of the self-cleaning structure, and the demolding plate is arranged on the guide structure in a sliding mode. When the mold body and the demolding plate are closed at the propping-out position, the insertion block extends into the insertion hole to upwards prop out the annular cushion block until the annular cushion block is flush with a notch of the annular groove; when the mold body moves between the abutting-out position and the cleaning position, the cleaning structure scrapes and cleans the mold body and the top of the annular cushion block. The device can automatically complete demolding and cleaning operation of the mold, and the production efficiency and the cleaning effect are improved.
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Description

Technical Field

[0001] This invention relates to the field of mold cleaning technology, and in particular to a mold cleaning device for a vulcanizing molding machine. Background Technology

[0002] Vulcanizing molding machines are key pieces of equipment in rubber product manufacturing. During the vulcanization process, rubber raw materials undergo a cross-linking reaction under high temperature and pressure within the mold, forming vulcanized molded parts with specific shapes and properties. As the core component of vulcanization molding, the cleanliness of the mold directly affects the surface quality and dimensional accuracy of the product.

[0003] In actual production, the surface of the mold after vulcanization often retains contaminants such as rubber flash, vulcanization residue, and mold release agent residue. If these contaminants are not removed in time, they can cause problems such as product surface defects, difficulty in demolding, and mold damage in subsequent production, seriously affecting product quality and production efficiency. In particular, for mold structures with annular spacers, contaminants tend to accumulate in this area due to the fit gap between the annular spacer and the annular groove, making cleaning more difficult. Summary of the Invention

[0004] The main objective of this invention is to propose a mold cleaning device for a vulcanizing molding machine, which aims to solve the technical problems of low efficiency, incomplete cleaning, and cumbersome operation in existing mold cleaning methods.

[0005] To achieve the above objectives, the present invention provides a mold cleaning device for a vulcanizing molding machine, used for cleaning the mold including a mold body and a demolding platen. The mold body has an annular groove, and an annular pad is detachably disposed within the annular groove. Insertion holes are provided on the bottom wall of the annular groove. The demolding platen is spaced below the mold body, and insertion blocks are provided on the demolding platen corresponding to the insertion holes. The mold cleaning device for the vulcanizing molding machine comprises: A translation mechanism, the free end of which is connected to the mold body; The guide structure includes a translation mechanism located on its outer periphery. The guide structure is equipped with a cleaning structure located away from the vulcanizing molding machine. A cleaning position and a push-out position are sequentially formed in a first horizontal direction extending from the cleaning structure toward the vulcanizing molding machine. The demolding template is slidably disposed on the guide structure in the horizontal direction and is capable of moving between the push-out position and the cleaning position. The insert block is configured such that when the mold body and the ejector plate are closed at the ejection position, the insert block can extend into the insertion hole and push the annular pad upward until the top of the annular pad is flush with the opening of the annular groove; the cleaning structure is configured such that when the mold body moves between the ejection position and the cleaning position, the cleaning structure can scrape and clean the top of the mold body and the annular pad.

[0006] The technical solution of this invention achieves automatic transfer of the mold body between processing position, initial position, ejection position, part removal position, and cleaning position through the cooperation of translation and lifting mechanisms; the automatic ejection and resetting of the annular pad is achieved by the engagement of the ejector plate's insert with the mold body's insertion hole, ensuring that the top of the annular pad is flush with the opening of the annular groove, eliminating cleaning dead corners; the combination of scraping and blowing cleaning by the cleaning structure achieves thorough cleaning of the mold body and the top of the annular pad; the part removal structure enables automatic removal of the vulcanized molded part; and the energy recovery and utilization is achieved by compressing air during the descent of the lifting mechanism and storing it in an elastic air bladder. The entire cleaning process is highly automated, requiring no manual intervention, and significantly improves production efficiency and cleaning effect. Attached Figure Description

[0007] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0008] Figure 1 This is a schematic diagram of an embodiment of the mold cleaning device for a vulcanizing molding machine provided by the present invention; Figure 2 This is a schematic diagram showing the state of the mold body in its initial position according to the present invention. Figure 3 This is a schematic diagram showing the state of the mold body in the ejected position according to the present invention. Figure 4 This is a schematic diagram showing the state of the mold body in the part-removal position according to the present invention. Figure 5 This is a schematic diagram showing the state of the mold body in the cleaning position according to the present invention. Figure 6 This is a schematic diagram of the structure of the mold body and the release template involved in the present invention; Figure 7 This is a schematic diagram of an embodiment of the lifting mechanism involved in the present invention.

[0009] Explanation of icon numbers: X, First horizontal direction; Y, Second horizontal direction; Z, Vertical direction; P1, Cleaning position; P2, Push-out position; P3, Processing position; P4, Initial position; P5, Removal position; 10. Mold body; 20. Demolding plate; 30. Annular pad; 40. Vulcanized molded part; 11. Annular groove; 12. Insertion hole; 13. Ear plate; 21. Insertion block; 100. Translation mechanism; 200. Guide structure; 300. Cleaning structure; 400. Lifting mechanism; 500. Parts retrieval structure; 110. Translation drive component; 120. Slide rail; 130. Vertical rod; 310. Mounting base; 320. Scraper strip; 321. Scraper section; 322. Blowing section; 323. Transition section; 301. Blowing port; 410. Lifting drive component; 420. Socket; 401. Through hole; 430. Base; 440. Connecting rod; 450. Air cylinder; 460. Air supply pipe; 470. Control valve; 480. Inlet check valve; 490. Pressure relief valve; 510. Stop block; 1000, Vulcanizing molding machine; 1100, Lifting platform; 1001, Vertical clearance groove.

[0010] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0011] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0012] It should be noted that if the embodiments of the present invention involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0013] Furthermore, if the embodiments of this invention involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0014] This invention proposes a mold cleaning device for a vulcanizing molding machine.

[0015] Please see Figure 1 , Figure 2 , Figure 3 , Figure 5 and Figure 6 In one embodiment of the present invention, the mold cleaning device of the vulcanizing molding machine is used to clean the mold including the mold body 10 and the stripper 20.

[0016] During the vulcanization molding process, rubber raw materials undergo a cross-linking reaction under high temperature and pressure within the mold to form a vulcanized molded part 40. The vulcanized molded part 40 exhibits strong adhesion to the mold after molding, and contaminants such as rubber flash and vulcanization residue remain on the mold surface. Existing mold cleaning methods suffer from low cleaning efficiency, incomplete cleaning, and cumbersome operation. This is particularly true for mold structures with annular pads 30, where the height difference between the annular pads 30 and the annular groove 11 easily creates cleaning dead zones. The mold cleaning device of the vulcanization molding machine 1000 in this embodiment aims to solve the above problems, achieving synchronous and automatic cleaning of the mold body 10 and the annular pads 30.

[0017] Specifically, the mold body 10 has an annular groove 11, and an annular pad 30 is detachably disposed within the annular groove 11. In one embodiment, the annular groove 11 is circular, with its walls extending vertically. The annular groove 11 is used to accommodate rubber raw material and define the outer contour shape of the vulcanized molded part 40 during the vulcanization process. The annular pad 30 is circular and adapted to fit the annular groove 11, with its outer peripheral wall fitting against the inner peripheral wall of the annular groove 11. During the vulcanization process, the rubber raw material fills the annular space between the opening of the annular groove 11 and the top of the annular pad 30, forming an annular vulcanized molded part 40 after vulcanization.

[0018] The bottom wall of the annular groove 11 has an insertion hole 12 that penetrates the bottom of the mold body 10. In one embodiment, the insertion hole 12 allows the insert block 21 of the ejector plate 20 to extend into the annular groove 11 from below the mold body 10, thereby lifting the annular pad 30 upwards. In this embodiment, there can be one or more annular grooves 11, which are arranged in an array on the top of the mold body 10. Each annular groove 11 has a corresponding annular pad 30, and the bottom wall of each annular groove 11 has a corresponding insertion hole 12, thereby allowing multiple vulcanized molded parts 40 to be formed simultaneously, improving production efficiency.

[0019] The ejector plates 20 are spaced apart below the mold body 10, and insert blocks 21 are provided at positions corresponding to the insertion holes 12 on the ejector plates 20. In one embodiment, the ejector plates 20 are flat, with their top surfaces parallel to and spaced apart from the bottom surfaces of the mold body 10, forming a space between them for the mold body 10 to descend. The insert blocks 21 are cylindrical, with their axes coinciding with the axes of the insertion holes 12. The outer diameter of the insert blocks 21 is slightly smaller than the inner diameter of the insertion holes 12, allowing the insert blocks 21 to smoothly extend into the insertion holes 12. The number of insert blocks 21 corresponds to the number of insertion holes 12, and each insert block 21 can extend into its corresponding insertion hole 12.

[0020] The top of the insert 21 is used to abut against the bottom of the annular pad 30. In one embodiment, the top surface of the insert 21 is flat, and the bottom center of the annular pad 30 is provided with an abutment surface that matches the top surface of the insert 21. When the insert 21 extends upward into the insertion hole 12, the top surface of the insert 21 fits against the abutment surface of the annular pad 30, thereby stably lifting the annular pad 30 upward. When the insert 21 lifts the annular pad 30 upward until the top of the annular pad 30 is flush with the opening of the annular groove 11, the vulcanized molded part 40 in the annular groove 11 moves upward synchronously with the annular pad 30, detaching from the groove wall of the annular groove 11, facilitating subsequent removal and cleaning.

[0021] The present invention employs a design where the insert block 21 pushes the annular pad 30 upwards until it is flush with the opening of the annular groove 11. This design has the following technical advantages: First, it eliminates the height difference between the top of the annular pad 30 and the opening of the annular groove 11, making the top surface of the mold body 10 and the top surface of the annular pad 30 form the same plane. This facilitates simultaneous scraping and cleaning of both by the cleaning structure 300, avoiding cleaning dead corners caused by height differences in traditional cleaning methods. Second, during the process of the annular pad 30 being lifted, the adhesion between the vulcanized molded part 40 and the inner wall of the annular groove 11 is overcome. The vulcanized molded part 40 moves upwards synchronously with the annular pad 30 and detaches from the annular groove 11, achieving initial demolding of the vulcanized molded part 40 and reducing the difficulty of subsequent part removal. Third, the annular pad 30 does not need to be removed from the annular groove 11 to complete the cleaning process, simplifying the cleaning operation and improving cleaning efficiency.

[0022] Please continue reading. Figure 1 , Figure 2 , Figure 3 , Figure 5 and Figure 6 The mold cleaning device of the vulcanizing molding machine 1000 in this embodiment of the invention includes a translation mechanism 100 and a guide structure 200. The free end of the translation mechanism 100 is connected to the mold body 10 and is used to drive the mold body 10 to move horizontally. In one embodiment, the translation mechanism 100 is disposed on the outer periphery of the mold body 10, and the free end of the translation mechanism 100 is fixedly connected to the side wall of the mold body 10 through a connector. The translation mechanism 100 can drive the mold body 10 to reciprocate between the processing position P3 of the vulcanizing molding machine 1000 and the cleaning position P1 away from the vulcanizing molding machine 1000. The arrangement of the translation mechanism 100 enables the mold body 10 to automatically move to the cleaning position P1 for cleaning after vulcanizing molding is completed, eliminating the need for manual mold handling and improving the degree of production automation.

[0023] A guide structure 200 is disposed inside the translation mechanism 100, and the translation mechanism 100 is disposed on the outer periphery of the guide structure 200. In one embodiment, the guide structure 200 is frame-shaped, with a guide space formed inside the guide structure 200 for sliding of the template 20, and a mounting position for mounting the translation mechanism 100 on the outer periphery of the guide structure 200. The guide structure 200 is used to support and guide the horizontal movement of the template 20, and the template 20 is slidably disposed on the guide structure 200 in the horizontal direction. In one embodiment, the inner sidewall of the guide structure 200 is provided with a guide rail extending in the horizontal direction, and the sidewall of the template 20 is provided with a guide slider that cooperates with the guide rail. The template 20 slides in the horizontal direction through the cooperation of the guide slider and the guide rail.

[0024] The guide structure 200 is equipped with a cleaning structure 300, which is located away from the vulcanizing molding machine 1000. In one embodiment, the cleaning structure 300 is installed at the end of the guide structure 200 near the cleaning position P1, and its position is fixed. When the mold body 10 moves past the cleaning structure 300, the cleaning structure 300 can scrape and clean the top surface of the mold body 10. The purpose of setting the cleaning structure 300 away from the vulcanizing molding machine 1000 is twofold: firstly, to avoid the cleaning structure 300 occupying the processing space of the vulcanizing molding machine 1000 and not affecting the normal operation of vulcanizing molding; secondly, to ensure that the mold body 10 is away from the high-temperature vulcanizing molding area when it moves to the cleaning structure 300, which is beneficial to the service life of the cleaning structure 300.

[0025] In this embodiment, the direction in which the self-cleaning structure 300 extends toward the vulcanizing molding machine 1000 is defined as the first horizontal direction X. A cleaning position P1 and a resisting position P2 are sequentially formed along the first horizontal direction X. The cleaning position P1 is closer to the cleaning structure 300 than the resisting position P2, meaning the cleaning position P1 is located near the cleaning structure 300; the resisting position P2 is closer to the vulcanizing molding machine 1000 than the cleaning position P1, meaning the resisting position P2 is located between the cleaning position P1 and the vulcanizing molding machine 1000. The ejector platen 20 is fixedly disposed within the guide structure 200 and located below the resisting position P2. After the ejector platen 20 is closed with the mold body 10, it can move between the resisting position P2 and the cleaning position P1 under the drive of the mold body 10.

[0026] More specifically, the insert 21 is configured such that when the mold body 10 and the ejector plate 20 are in the ejection position P2, the insert 21 can extend into the insertion hole 12 and push the annular pad 30 upward until the top of the annular pad 30 is flush with the opening of the annular groove 11. In one embodiment, when the mold body 10 is in the ejection position P2, the mold body 10 is directly above the ejector plate 20. After the mold body 10 descends, the insert 21 of the ejector plate 20 can be aligned and extended into the insertion hole 12 of the mold body 10. As the mold body 10 continues to descend, the top of the insert 21 abuts against the bottom of the annular pad 30 and pushes the annular pad 30 upward. When the mold body 10 descends to the ejection position P2, the annular pad 30 is pushed up until its top is flush with the opening of the annular groove 11. At this time, the vulcanized molded part 40 in the annular groove 11 is pushed out of the top of the mold body 10 by the annular pad 30, thus achieving demolding.

[0027] The cleaning structure 300 is configured to scrape and clean the tops of the mold body 10 and the annular pad 30 when the mold body 10 moves between the ejection position P2 and the cleaning position P1. In one embodiment, when the mold body 10 moves from the ejection position P2 to the cleaning position P1, the top surfaces of the mold body 10 and the annular pad 30 pass under the cleaning structure 300 in sequence; when the mold body 10 returns to its original position from the cleaning position P1 to the ejection position P2, the cleaning structure 300 abuts against the top surfaces of the mold body 10 and the annular pad 30 and generates a scraping action, thereby scraping away residues on the top surfaces of the mold body 10 and the annular pad 30. Since the annular pad 30 has been pushed out to be flush with the opening of the annular groove 11, the cleaning structure 300 can simultaneously scrape and clean the top surface of the mold body 10 and the top surface of the annular pad 30. Since the two are on the same plane and there is no height difference, the problem of forming a cleaning dead corner between the annular pad 30 and the annular groove 11 in the traditional cleaning method is avoided, and the mold is thoroughly cleaned.

[0028] Please continue reading. Figure 1 , Figure 2, Figure 3 , Figure 5 and Figure 6 In some embodiments of the present invention, the cleaning structure 300 includes a mounting base 310 and a scraper strip 320. The mounting base 310 is mounted on the guide structure 200 and is used to support and fix the scraper strip 320. In one embodiment, the mounting base 310 is L-shaped, and the vertical portion of the mounting base 310 is fixedly connected to the side wall of the guide structure 200 by bolts. The horizontal portion of the mounting base 310 extends inward toward the guide structure 200 and is used to support the scraper strip 320. An adjustment mechanism can be provided between the mounting base 310 and the guide structure 200 to adjust the height position of the scraper strip 320 to accommodate mold bodies 10 of different thicknesses.

[0029] A scraper strip 320 is mounted on the mounting base 310. The scraper strip 320 is used to contact the top of the mold body 10 and the annular pad 30 and generate a scraping action. In one embodiment, the scraper strip 320 is fixed to the horizontal portion of the mounting base 310 by bolts or snap-fit. The scraper strip 320 is detachably mounted on the mounting base 310 for easy replacement after wear. The scraper strip 320 can be made of high-temperature resistant and wear-resistant materials, such as high-temperature silicone, polytetrafluoroethylene, polyetheretherketone, or metal. In a preferred embodiment, the scraper strip 320 is made of polytetrafluoroethylene, which can withstand the high temperature of the mold, reduce wear on the mold surface, and will not chemically react with rubber residues.

[0030] The direction intersecting the first horizontal direction X is defined as the second horizontal direction Y. In this embodiment, the first horizontal direction X and the second horizontal direction Y are perpendicular to each other. The first horizontal direction X is the moving direction of the mold body 10, and the second horizontal direction Y is the extending direction of the scraper strip 320. A scraping portion 321 extending along the second horizontal direction Y protrudes from the bottom of the scraper strip 320 on the side facing the cleaning position P1. In one embodiment, the scraping portion 321 is strip-shaped, and the length of the scraping portion 321 along the second horizontal direction Y is greater than or equal to the length of the mold body 10 along the second horizontal direction Y, so that the scraping portion 321 can cover the entire width of the top surface of the mold body 10, achieving comprehensive scraping and cleaning of the top surface of the mold body 10.

[0031] The thickness of the scraping portion 321 extending vertically along the Z direction gradually increases along the first horizontal direction X towards the point of contact with the ejection position P2. In one embodiment, the longitudinal section of the scraping portion 321 (the section formed by the first horizontal direction X and the vertical direction Z) is wedge-shaped, with the end of the scraping portion 321 closer to the cleaning position P1 being thinner and the end of the scraping portion 321 closer to the ejection position P2 being thicker. This wedge-shaped structure design has the following technical effects: when the mold body 10 moves from the cleaning position P1 to the ejection position P2, the top surface of the mold body 10 first contacts the thinner end of the scraping portion 321, at which point the clamping force between the scraping portion 321 and the top surface of the mold body 10 is relatively small; as the mold body 10 continues to move, the top surface of the mold body 10 gradually contacts the thicker part of the scraping portion 321, and the clamping force between the scraping portion 321 and the top surface of the mold body 10 gradually increases. This progressive clamping design avoids the impact caused by sudden contact between the mold body 10 and the scraping part 321, protecting the mold body 10 and the scraping strip 320 from damage; at the same time, as the clamping force gradually increases, the scraping effect gradually strengthens, and the residue on the top surface of the mold body 10 can be completely scraped off.

[0032] The scraping part 321 is used to abut against the top of the mold body 10 and the annular pad 30 when the mold body 10 returns to the ejected position P2 from the self-cleaning position P1. In one embodiment, the gap between the bottom surface of the scraping part 321 and the top surface of the mold body 10 is less than the maximum thickness of the scraping part 321 along the vertical Z direction, so that when the mold body 10 moves from the cleaning position P1 to the ejected position P2, the scraping part 321 can be compressed and deformed upward by the top surface of the mold body 10, thereby forming a tight contact with the top surface of the mold body 10 and generating a scraping effect. Since the annular pad 30 has been ejected to be flush with the opening of the annular groove 11, the top surface of the annular pad 30 and the top surface of the mold body 10 are on the same plane, and the scraping part 321 can simultaneously abut against the top surface of the mold body 10 and the top surface of the annular pad 30, realizing synchronous scraping and cleaning of both.

[0033] The embodiments of the present invention employ a wedge-shaped scraping part 321 with gradually varying thickness, which has the following advantages compared to a scraping part 321 with uniform thickness: First, the gradual pressing avoids the impact force generated when the scraping part 321 suddenly contacts the top surface of the mold body 10, reducing the risk of damage to the mold body 10 and the scraping strip 320; Second, the wedge structure allows the scraping part 321 to adapt to slight height differences on the top surface of the mold body 10. Even if there is slight unevenness on the top surface of the mold body 10, the scraping part 321 can maintain close contact with the top surface of the mold body 10 through its own deformation, ensuring consistent cleaning effect; Third, the wedge structure makes the scraping part 321 directional in removing residue. The residue moves towards the cleaning position P1 under the guidance of the wedge-shaped surface of the scraping part 321, preventing residue from accumulating below the scraping part 321.

[0034] Please continue reading. Figure 6 And see Figure 7 In some embodiments of the present invention, a blowing portion 322 extending along a second horizontal direction Y protrudes from the top of the scraper strip 320 toward the cleaning position P1. The blowing portion 322 extends above the scraper portion 321 along a first horizontal direction X, that is, the blowing portion 322 is closer to the cleaning position P1 than the scraper portion 321. In one embodiment, the blowing portion 322 is strip-shaped, and the length of the blowing portion 322 along the second horizontal direction Y is equal to the length of the scraper portion 321 along the second horizontal direction Y. The blowing portion 322 is located above the scraper portion 321 and extends toward the cleaning position P1. This arrangement allows the blowing portion 322 to blow clean the top surface of the mold body 10 before or simultaneously with the scraper portion 321 scraping and cleaning the top surface of the mold body 10.

[0035] The blowing section 322 and the scraping section 321 are connected by a transition section 323, which has an arc-shaped structure that arches from the cleaning position P1 towards the ejection position P2. In one embodiment, the longitudinal section of the transition section 323 is an arc shape that bulges towards the ejection position P2. The upper end of the transition section 323 is smoothly connected to the lower surface of the blowing section 322, and the lower end of the transition section 323 is smoothly connected to the upper surface of the scraping section 321. The arc-shaped structure design of the transition section 323 has the following technical effects: when the scraping section 321 scrapes up the residue on the top surface of the mold body 10, the residue slides upward along the arc-shaped surface of the transition section 323 and slides down to the cleaning position P1 under the action of gravity, avoiding the accumulation of residue on the scraping strip 320 and affecting the subsequent cleaning effect; at the same time, the arc-shaped structure increases the surface area of ​​the transition section 323, which is conducive to the dispersion and sliding of residue.

[0036] The purging section 322 has a purging port 301 facing the top of the mold body 10 and the annular pad 30. In one embodiment, the purging port 301 is located on the bottom surface of the purging section 322, and the opening direction of the purging port 301 is vertically downward or inclined downward towards the ejection position P2. The purging port 301 is used to spray compressed air or other cleaning media to purify and clean the top of the mold body 10 and the annular pad 30. The purging port 301 can be configured as a strip-shaped opening extending along the second horizontal direction Y, which can form an air curtain evenly distributed along the second horizontal direction Y to thoroughly purify the top surface of the mold body 10; the purging port 301 can also be configured as multiple circular nozzles spaced apart along the second horizontal direction Y, which can form multiple high-speed airflows to concentrate on purifying local areas of the top surface of the mold body 10.

[0037] This invention employs a combination of blowing and scraping cleaning, achieving the following technical effects: First, scraping cleaning removes residues with strong adhesion, such as rubber flash and vulcanization residue, from the top surface of the mold body 10; blowing cleaning removes fine particles and dust that are difficult to remove by scraping. The combination of the two methods achieves thorough cleaning of the top surface of the mold body 10. Second, the blowing port 301 is located in front of the scraping part 321 (close to the cleaning position P1). When the mold body 10 moves from the cleaning position P1 to the ejection position P2, the airflow from the blowing port 301 first acts on the top surface of the mold body 10, blowing up loose residues. Subsequently, the scraping part 321 scrapes the top surface of the mold body 10, removing the adhered residues, thus achieving coordinated cleaning of blowing and scraping. Third, the airflow from the blowing port 301 can blow away the residues scraped up by the scraping part 321, preventing the residues from falling back onto the top surface of the mold body 10.

[0038] Please continue reading. Figure 1 , Figure 2 , Figure 3 , Figure 5 and Figure 6 In some embodiments of the present invention, the vulcanizing molding machine 1000 includes a lifting platform 1100, which forms a processing position P3. The lifting platform 1100 is used to support the mold body 10 and lift the mold body 10 to be closed with the upper mold of the vulcanizing molding machine 1000. In one embodiment, the lifting platform 1100 is located at the lower mold position of the vulcanizing molding machine 1000, and the top surface of the lifting platform 1100 forms a supporting surface for placing the mold body 10. The lifting platform 1100 can be raised and lowered vertically in the Z direction. When the mold body 10 moves above the lifting platform 1100, the lifting platform 1100 rises to lift the mold body 10, so that the mold body 10 is closed with the upper mold of the vulcanizing molding machine 1000 for vulcanizing molding; after vulcanizing molding is completed, the lifting platform 1100 descends to separate the mold body 10 from the upper mold, so that the mold body 10 can be moved out of the processing position P3. Processing position P3 is the position of the mold body 10 when it is vulcanized and molded above the lifting platform 1100.

[0039] The translation mechanism 100 includes a translation drive 110, two slide rails 120, and multiple vertical rods 130. The two slide rails 120 are spaced apart along a second horizontal direction Y, and both slide rails 120 extend along a first horizontal direction X. In one embodiment, the two slide rails 120 are parallel to each other, and the distance between the two slide rails 120 is greater than the width of the mold body 10 along the second horizontal direction Y, allowing the mold body 10 to move between the two slide rails 120. The length of the two slide rails 120 extends along the first horizontal direction X, and the length of the two slide rails 120 is greater than the stroke required for the mold body 10 to move from the processing position P3 to the cleaning position P1, allowing the mold body 10 to reciprocate between the processing position P3 and the cleaning position P1 under the guidance of the two slide rails 120.

[0040] The lifting platform 1100 and the guide structure 200 are spaced apart along the first horizontal direction X between two slide rails 120. This arrangement allows the mold body 10 to move along the two slide rails 120 between the guide structure 200 and the lifting platform 1100.

[0041] The mold body 10 is slidably mounted between two slide rails 120 along a first horizontal direction X. In one embodiment, sliding portions are provided on opposite sides of the mold body 10 (both sides along a second horizontal direction Y), and the sliding portions slide in engagement with the slide rails 120. The sliding portions can be slider structures, with a groove formed at the bottom of the slider that engages with the top surface of the slide rail 120; the sliding portions can also be roller structures, with the rollers rolling along the top surface of the slide rails 120. Through the engagement of the sliding portions with the slide rails 120, the mold body 10 can move smoothly along the first horizontal direction X.

[0042] Multiple vertical rods 130 are spaced apart on the outer sides of two slide rails 120 to support them. In one embodiment, there are four vertical rods 130, each positioned at one end of a slide rail 120. The vertical rods 130 extend vertically in the Z direction, with their bottom ends fixed to the ground or frame and their top ends connected to the slide rails 120. The two slide rails 120 are vertically and vertically mounted on the multiple vertical rods 130, forming a vertical sliding fit between the slide rails 120 and the vertical rods 130. In one embodiment, the sidewall of the vertical rod 130 has a guide groove extending vertically in the Z direction, and the end of the slide rail 120 has a guide protrusion extending into the guide groove. The guide protrusion slides up and down along the guide groove, enabling the slide rail 120 to move vertically relative to the vertical rod 130. The slide rail 120 is designed to be height-adjustable, allowing it to rise and fall together with the mold body 10, thereby enabling the mold body 10 to switch between different height positions.

[0043] Two slide rails 120 extend from one end of the lifting platform 1100 and are connected to the fixed end of the translation drive 110. In one embodiment, the ends of the two slide rails 120 extending toward the vulcanizing molding machine 1000 extend from the lifting platform 1100, and the fixed end of the translation drive 110 is installed between the ends of the two slide rails 120 extending from the lifting platform 1100 and the lifting platform 1100. The translation drive 110 is fixedly connected to the slide rails 120, and when the slide rails 120 rise and fall, the translation drive 110 rises and falls synchronously with the slide rails 120.

[0044] The lifting platform 1100 is provided with a vertical clearance groove 1001, which extends along a first horizontal direction X. In one embodiment, the vertical clearance groove 1001 penetrates the top and bottom surfaces of the lifting platform 1100. The vertical clearance groove 1001 provides vertical movement space for the free end of the translation drive member 110. When the slide rail 120 drives the translation drive member 110 to rise and fall, the free end of the translation drive member 110 can move up and down within the vertical clearance groove 1001 without interfering with the lifting platform 1100.

[0045] The free end of the translation drive 110 is provided corresponding to the vertical clearance groove 1001, and the free end of the translation drive 110 extends along the first horizontal direction X and is connected to the mold body 10. In one embodiment, the free end of the translation drive 110 is rod-shaped, passes through the vertical clearance groove 1001, and is fixedly connected to the side wall of the mold body 10. The translation drive 110 can be a linear drive element such as a cylinder, hydraulic cylinder, electric push rod, or linear motor.

[0046] The translation drive 110 is used to drive the mold body 10 to move between an initial position P4, away from the lifting platform 1100, and a processing position P3. In one embodiment, the initial position P4 is located above the guide structure 200. When the mold body 10 is in the initial position P4, it is directly above the guide structure 200, and there is a certain gap between the bottom surface of the mold body 10 and the top surface of the demolding plate 20. When the translation drive 110 drives the mold body 10 to move from the initial position P4 to the processing position P3, the mold body 10 slides along the slide rail 120 toward the vulcanizing molding machine 1000 until the mold body 10 moves above the lifting platform 1100 and reaches the processing position P3. At the processing position P3, the mold body 10 is located above the lifting platform 1100, and at this time, the height of the mold body 10 is higher than the ejection position P2.

[0047] Please continue reading. Figure 5 and Figure 7In some embodiments of the present invention, ear plates 13 are provided on opposite sides of the mold body 10 corresponding to the positions of the two slide rails 120, and the ear plates 13 extend along the first horizontal direction X. In one embodiment, the ear plates 13 are plate-shaped, one end of the ear plate 13 is fixedly connected to the side wall of the mold body 10, and the other end of the ear plate 13 extends outward along the first horizontal direction X. The ear plates 13 are provided on both sides of the mold body 10 along the second horizontal direction Y, and the ear plates 13 on both sides are symmetrically arranged. The ear plates 13 are provided to cooperate with the lifting mechanism 400 described later to realize the quick connection and separation of the mold body 10 and the lifting mechanism 400. The design of the ear plates 13 extending along the first horizontal direction X allows the mold body 10 to achieve the insertion and engagement of the ear plates 13 and the lifting mechanism 400 by moving along the first horizontal direction X, without the need for additional connection operations, thus simplifying the connection process between the mold body 10 and the lifting mechanism 400.

[0048] The mold cleaning device of the vulcanizing molding machine 1000 also includes a lifting mechanism 400, the lifting end of which is located at the initial position P4. The lifting mechanism 400 is used to drive the mold body 10 to move vertically Z-axis. In one embodiment, the lifting mechanism 400 is located above the guide structure 200, and the lifting end of the lifting mechanism 400 is located at the initial position P4, that is, directly above the guide structure 200. When the mold body 10 moves to the initial position P4, the mold body 10 can connect with the lifting end of the lifting mechanism 400, and the lifting end of the lifting mechanism 400 can drive the mold body 10 to descend vertically Z-axis to the ejection position P2 or rise from the ejection position P2 to the initial position P4.

[0049] The free end of the translation drive 110 is also used to drive the mold body 10 to extend or move the ear plate 13 into or out of the lifting end of the lifting mechanism 400 along the first horizontal direction X, correspondingly causing the ear plate 13 to insert or disengage from the lifting end of the lifting mechanism 400. In one embodiment, the lifting end of the lifting mechanism 400 is formed with a plug-in structure for inserting the ear plate 13. When the translation drive 110 drives the mold body 10 to move to the initial position P4, the mold body 10 drives the ear plate 13 to extend into the plug-in structure along the first horizontal direction X, and the ear plate 13 and the plug-in structure form a plug-in engagement, connecting the mold body 10 with the lifting end of the lifting mechanism 400; when the translation drive 110 drives the mold body 10 to move to the processing position P3, the mold body 10 drives the ear plate 13 to pull out of the plug-in structure along the first horizontal direction X, separating the ear plate 13 from the plug-in structure, and disengaging the mold body 10 from the lifting end of the lifting mechanism 400. This plug-in connection method allows the connection and separation of the mold body 10 and the lifting mechanism 400 to be completed automatically during the movement of the mold body 10, without the need for additional connection operations, thus improving production efficiency.

[0050] After the translation mechanism 100 drives the mold body 10 to move from the processing position P3 to the initial position P4, the mold body 10 is connected to the lifting end of the lifting mechanism 400 through the ear plate 13. The lifting end of the lifting mechanism 400 is used to drive the mold body 10 to move the translation mechanism 100 from the initial position P4 to the ejection position P2. In one embodiment, when the lifting end of the lifting mechanism 400 descends, the mold body 10 descends synchronously with the lifting end of the lifting mechanism 400, and the slide rail 120 descends synchronously with the mold body 10. The translation drive component 110 descends synchronously with the slide rail 120. That is, the lifting mechanism 400 drives the mold body 10 to descend while simultaneously driving the entire translation mechanism 100 to descend. When the mold body 10 descends to the ejection position P2, the insert block 21 of the ejector plate 20 extends into the insertion hole 12 of the mold body 10 to eject the annular pad block 30 in the annular groove 11 upwards. In one embodiment, the demolding template 20 is fixedly disposed within the guide structure 200. When the mold body 10 descends, the mold body 10 moves downward relative to the demolding template 20, and the insert 21 of the demolding template 20 extends upward relative to the mold body 10 into the insertion hole 12. The top end of the insert 21 abuts against the bottom of the annular pad 30 and pushes the annular pad 30 upward. When the top of the annular pad 30 is flush with the opening of the annular groove 11, the vulcanized molded part 40 in the annular groove 11 is pushed out from the top of the mold body 10, thus achieving demolding.

[0051] The lifting end of the lifting mechanism 400 is also used to drive the mold body 10 to move the translation mechanism 100 from the push-out position P2 to the initial position P4, so that the insert block 21 of the demolding template 20 is dislodged downward from the insertion hole 12, thereby resetting the annular pad 30 in the annular groove 11 downward. In one embodiment, when the lifting end of the lifting mechanism 400 rises, the mold body 10 rises synchronously with the lifting end of the lifting mechanism 400. The mold body 10 moves upward relative to the demolding template 20, the insert block 21 of the demolding template 20 is dislodged downward from the insertion hole 12 relative to the mold body 10, and the annular pad 30 is reset downward to the bottom wall of the annular groove 11 under its own gravity, returning to the initial state, and preparing for the next vulcanization molding.

[0052] In this embodiment of the invention, a lifting mechanism 400 is used to drive the mold body 10 to rise and fall to achieve the insertion and engagement of the insert block 21 and the insertion hole 12. Compared with the method of driving the insert block 21 to rise and fall, it has the following technical effects: First, during the descent of the mold body 10, multiple insert blocks 21 can simultaneously extend into the corresponding insertion hole 12, realizing the synchronous ejection of multiple annular pads 30, ensuring the consistency of the ejection height of each annular pad 30; Second, the lifting mechanism 400 simultaneously drives the mold body 10 and the translation mechanism 100 to rise and fall, so that the mold body 10 always maintains a connected state with the translation mechanism 100 during the rising and falling process, which facilitates the immediate horizontal movement of the mold body 10 after the rising and falling is completed, thereby improving the production cycle.

[0053] It should be noted that, in some embodiments of the present invention, the vertical rod 130 is provided with a locking structure, which provides vertical support for the slide rail 120 when it is in the initial position P4 or the outward position P2. The locking structure includes a locking seat, a locking block, and an elastic element. The locking seat is installed on the vertical rod 130, and the locking seat has an upper locking groove and a lower locking groove corresponding to the initial position P4 and the outward position P2, respectively. In one embodiment, the locking seat is strip-shaped, extends vertically in the Z direction, and is fixedly installed on the side wall of the vertical rod 130. A sliding surface extending vertically in the Z direction is formed on the side of the locking seat facing the slide rail 120, and the sliding surface is used to guide the vertical sliding of the locking block. The upper locking groove is opened in the upper part of the sliding surface, corresponding to the height position of the locking block when the slide rail 120 is in the initial position P4; the lower locking groove is opened in the lower part of the sliding surface, corresponding to the height position of the locking block when the slide rail 120 is in the outward position P2. Both the upper and lower locking grooves open towards the slide rail 120, and the groove depth is sufficient to accommodate the locking block extending into them and form a reliable support. The locking block is installed at the end of the slide rail 120, and is slidably disposed on the locking seat along the vertical Z direction. In one embodiment, the locking block is block-shaped and is installed at the end of the slide rail 120 via a guide rod extending horizontally, allowing the locking block to extend and retract axially along the guide rod. A locking head is formed at the end of the locking block facing the locking seat, which is adapted to the upper and lower locking grooves. The locking head is used to extend into the upper or lower locking groove to achieve locking. In one embodiment, the top and bottom surfaces of the locking head are both set as inclined or arc surfaces, so that the locking block can be smoothly compressed and retracted when sliding along the sliding surface of the locking seat. An elastic element is disposed between the locking seat and the locking block, and is used to drive the locking block to elastically extend towards the locking seat. In one embodiment, the elastic element is a compression spring, which is sleeved on the guide rod. One end of the compression spring abuts against the slide rail 120, and the other end abuts against the locking block. The compression spring, in a compressed state, consistently applies an elastic thrust towards the locking seat to the locking block. The locking block is configured such that when the slide rail 120 is in the initial position P4, the locking block extends into the upper locking groove under the action of the elastic element to lock the slide rail 120. In one embodiment, when the lifting mechanism 400 drives the mold body 10 and the slide rail 120 to rise to the initial position P4, the locking block rises synchronously with the slide rail 120. When the locking head of the locking block aligns with the upper locking groove, the elastic element pushes the locking block out, and the locking head extends into the upper locking groove. At this time, the bottom surface of the locking block abuts against the bottom wall of the upper locking groove, providing vertical support for the slide rail 120. Even if the mold body 10 subsequently moves out of the initial position P4 along the first horizontal direction X, and the ear plate 13 disengages from the socket 420, the slide rail 120 can still remain in the initial position P4 through the cooperation of the locking block and the upper locking groove, and will not fall. When the slide rail 120 is in the outward position P2, the locking block extends into the lower locking groove under the action of the elastic element to lock the slide rail 120.In one embodiment, when the lifting mechanism 400 drives the mold body 10 and the slide rail 120 to descend to the outward position P2, the locking block descends synchronously with the slide rail 120. When the locking head of the locking block aligns with the lower locking groove, the elastic element pushes the locking block to extend, and the locking head extends into the lower locking groove. At this time, the bottom surface of the locking block abuts against the bottom wall of the lower locking groove, providing vertical support for the slide rail 120.

[0054] More specifically, when the lifting mechanism 400 drives the slide rail 120 to rise and fall, the locking block is compressed and retracted by the sliding surface of the locking seat and slides along the locking seat. In one embodiment, when the lifting mechanism 400 drives the mold body 10 to lower the slide rail 120 from the initial position P4 to the outward position P2, the locking block descends synchronously with the slide rail 120. The locking head of the locking block first slides out of the upper locking groove, and the bottom inclined surface of the locking head contacts the edge of the upper locking groove. As the slide rail 120 continues to descend, the locking head is pressed by the edge of the upper locking groove, and the locking block overcomes the elastic force of the elastic element and retracts along the guide rod. After the locking head completely exits the upper locking groove, the end face of the locking block abuts against the sliding surface of the locking seat, and the locking block slides downward along the sliding surface. When the locking block descends to be aligned with the lower locking groove, the elastic element pushes the locking block out, and the locking head extends into the lower locking groove, completing the locking. Similarly, when the lifting mechanism 400 drives the mold body 10 to raise the slide rail 120 from the disengaged position P2 to the initial position P4, the locking block rises synchronously with the slide rail 120. The locking head slides out of the lower locking groove and slides upward along the sliding surface. When the locking block rises to align with the upper locking groove, the locking head extends into the upper locking groove, completing the locking. In one embodiment, there are four locking structures, which are respectively set on the four vertical rods 130, corresponding to the four end positions of the slide rail 120. The four locking structures operate synchronously, providing uniform support force to the four ends of the slide rail 120, ensuring that the slide rail 120 remains horizontal in the locked state.

[0055] Please continue reading. Figure 5 and Figure 7 In some embodiments of the present invention, the lifting mechanism 400 includes a lifting drive 410 and a socket 420.

[0056] The lifting drive component 410 is positioned at the initial position P4, and its fixed end is mounted on the frame or the ground. In one embodiment, the lifting drive component 410 is positioned above the guide structure 200, and its fixed end is fixedly connected to the guide structure 200 or the ground via a bracket, with the lifting end of the lifting drive component 410 facing downwards. The lifting drive component 410 can be a drive element such as a cylinder, hydraulic cylinder, electric push rod, or lifting motor.

[0057] The socket 420 is installed on the lifting end of the lifting drive 410 and moves up and down synchronously with the lifting end of the lifting drive 410. In one embodiment, the socket 420 is fixedly connected to the lifting end of the lifting drive 410 by bolts, and the socket 420 is located below the lifting end of the lifting drive 410. The socket 420 is used to cooperate with the ear plate 13 of the mold body 10 to realize the connection between the mold body 1010 and the lifting mechanism 400. The socket 420 has a through hole 401, which extends along the first horizontal direction X. In one embodiment, the through hole 401 passes through both ends of the socket 420 along the first horizontal direction X, and the cross-sectional shape of the through hole 401 is adapted to the cross-sectional shape of the ear plate 13, for example, both are rectangular. The height of the through hole 401 along the vertical direction Z is slightly greater than the thickness of the ear plate 13 along the vertical direction Z, and the width of the through hole 401 along the second horizontal direction Y is slightly greater than the width of the ear plate 13 along the second horizontal direction Y, so that the ear plate 13 can smoothly extend into the through hole 401. The design of the through hole 401 extending along the first horizontal direction X allows the ear plate 13 to extend into or move out of the through hole 401 along the first horizontal direction X, thereby realizing the insertion and engagement of the ear plate 13 and the socket 420.

[0058] The free end of the translation drive 110 is also used to drive the mold body 10 to extend or retract the ear plate 13 into the through hole 401 along the first horizontal direction X, correspondingly causing the ear plate 13 to insert or retract from the socket 420. In one embodiment, when the translation drive 110 drives the mold body 10 to move to the initial position P4, the mold body 10 drives the ear plate 13 to extend into the through hole 401 along the first horizontal direction X, and the end of the ear plate 13 passes through the through hole 401 and extends out to the other side of the socket 420, forming a plug-in fit between the ear plate 13 and the socket 420; when the translation drive 110 drives the mold body 10 to move to the processing position P3 or the cleaning position P1, the mold body 10 drives the ear plate 13 to move out of the through hole 401 along the first horizontal direction X, and the ear plate 13 separates from the socket 420.

[0059] When the ear plate 13 is inserted into the socket 420, the mold body 10 is connected to the lifting mechanism 400. The lifting end of the lifting drive 410 can drive the socket 420 to move the mold body 10 and the translation mechanism 100 from the initial position P4 to the abutment position P2. In one embodiment, after the ear plate 13 is inserted into the through hole 401, there is a small gap between the top surface of the ear plate 13 and the top wall of the through hole 401, and the bottom surface of the ear plate 13 abuts against or has a small gap with the bottom wall of the through hole 401. When the lifting end of the lifting drive 410 descends, the socket 420 descends synchronously with the lifting end of the lifting drive 410, and the bottom wall of the through hole 401 presses down on the bottom surface of the ear plate 13, causing the ear plate 13 and the mold body 10 to descend synchronously.

[0060] In this embodiment, there are two sockets 420, which are respectively disposed on the ear plates 13 on both sides of the mold body 10. In one embodiment, the two sockets 420 are spaced apart along the second horizontal direction Y, and are respectively installed on both sides of the lifting end of the lifting drive 410, with the through holes 401 of the two sockets 420 aligned with each other. The ear plates 13 on both sides of the mold body 10 are respectively inserted into the through holes 401 of the two sockets 420, so that the mold body 10 and the lifting mechanism 400 form a stable connection, preventing the mold body 10 from tilting or shaking during the lifting process.

[0061] Please continue reading. Figure 3 , Figure 5 and Figure 7 In some embodiments of the present invention, the lifting mechanism 400 further includes a base 430, a connecting rod 440, a piston, and an air cylinder 450. The fixed end of the lifting drive member 410 and the air cylinder 450 are spaced apart and mounted on the top of the base 430. In one embodiment, the base 430 is box-shaped and is disposed below or to the side of the guide structure 200. The fixed end of the lifting drive member 410 and the air cylinder 450 are respectively mounted at different positions on the top of the base 430, and the lifting drive member 410 and the air cylinder 450 are spaced apart along a first horizontal direction X or a second horizontal direction Y. The base 430 is used to support the lifting drive member 410 and the air cylinder 450 and to provide a receiving space for the elastic airbag described later.

[0062] A receiving space is formed within the base 430, and an elastic airbag is housed within the receiving space. In one embodiment, the receiving space is located inside the base 430, and its size is sufficient to accommodate the volume of the elastic airbag in its inflated state. The elastic airbag is made of an elastic material, such as rubber or silicone, and is capable of inflating when inflated and contracting when deflated. The elastic airbag is used to store compressed air and release compressed air for purging and cleaning when needed.

[0063] The air cylinder 450 extends vertically in the Z direction, and an air cavity is formed inside the air cylinder 450. In one embodiment, the air cylinder 450 is cylindrical, with its axis extending vertically in the Z direction. The top of the air cylinder 450 is open, and the bottom of the air cylinder 450 is closed and has an air outlet. The inner diameter of the air cylinder 450 is adapted to the outer diameter of the piston, which will be described later, allowing the piston to slide vertically in the Z direction within the air cylinder 450.

[0064] A connecting rod 440 extends vertically in a Z-direction. The top end of the connecting rod 440 connects to the socket 420, and the bottom end extends into the air cylinder 450 and slides against the inner wall of the air cylinder 450 via a piston. In one embodiment, the connecting rod 440 is rod-shaped, with its top end fixedly connected to the socket 420 by bolts or welding, and its bottom end fixedly connected to the piston. The piston is disc-shaped, with its outer diameter matching the inner diameter of the air cylinder 450. A sealing ring is provided between the outer peripheral wall of the piston and the inner wall of the air cylinder 450 to ensure the airtightness of the air chamber of the air cylinder 450. When the socket 420 rises and falls, the connecting rod 440 rises and falls synchronously with the socket 420, and the connecting rod 440 drives the piston to slide vertically in a Z-direction within the air cylinder 450. The air outlet of the air cylinder 450 is connected to the first air inlet of the elastic airbag. In one embodiment, an air outlet pipe is provided at the bottom end of the air cylinder 450. One end of the air outlet pipe is connected to the air chamber of the air cylinder 450, and the other end of the air outlet pipe is connected to the first air inlet of the elastic air bladder. When the piston moves downward inside the air cylinder 450, the piston compresses the air inside the air cylinder 450, and the compressed air enters the elastic air bladder for storage through the air outlet pipe.

[0065] The first outlet of the elastic airbag is connected to the purge port 301 via an air supply pipe 460. A control valve 470 is provided at the connection between the air supply pipe 460 and the purge port 301. In one embodiment, the first outlet of the elastic airbag is provided with an outlet connector. One end of the air supply pipe 460 is connected to the outlet connector, and the other end of the air supply pipe 460 is connected to the air passage inside the purge section 322 of the scraper strip 320. The air passage is connected to the purge port 301. The control valve 470 is provided on the air supply pipe 460 or at the connection between the air supply pipe 460 and the purge port 301. The control valve 470 is used to control the opening and closing of the air supply pipe 460, thereby controlling whether the compressed air in the elastic airbag is ejected from the purge port 301. The control valve 470 can be a solenoid valve, a pneumatic valve, or a manual valve.

[0066] The second air inlet of the elastic airbag is connected to the external environment via an air inlet check valve 480. In one embodiment, the second air inlet of the elastic airbag is provided with an air inlet connector, and the air inlet check valve 480 is installed at the air inlet connector. The air inlet direction of the air inlet check valve 480 is from the external environment into the elastic airbag. The air inlet check valve 480 is used to automatically open when the air pressure inside the elastic airbag is lower than the air pressure of the external environment, allowing air from the external environment to enter the elastic airbag 67 for replenishment; when the air pressure inside the elastic airbag is higher than or equal to the air pressure of the external environment, the air inlet check valve 480 automatically closes to prevent air leakage from the elastic airbag.

[0067] The second outlet of the elastic airbag is connected to the external environment via a pressure relief valve 490. In one embodiment, the second outlet of the elastic airbag is provided with a pressure relief connector, and the pressure relief valve 490 is installed at the pressure relief connector. The pressure relief valve 490 is used to automatically open when the air pressure inside the elastic airbag exceeds a preset threshold, thereby venting excess gas to the external environment and preventing the elastic airbag from being damaged due to excessive air pressure. The preset threshold can be set according to the pressure resistance of the elastic airbag and the air pressure required for purging and cleaning, for example, set to 0.3MPa to 0.5MPa.

[0068] The connecting rod 440 is used to push the piston downward to compress the air in the air cylinder 450 into the elastic air bladder when the lifting drive member 410 drives the socket 420 to descend from the initial position P4 to the outgoing position P2. In one embodiment, when the lifting drive member 410 drives the socket 420 to descend from the initial position P4 to the outgoing position P2, the connecting rod 440 descends synchronously with the socket 420, and the connecting rod 440 pushes the piston downward within the air cylinder 450. During the downward movement of the piston, the volume of the air chamber below the piston decreases, the air in the air chamber is compressed, and the compressed air enters the elastic air bladder through the air outlet of the air cylinder 450 for storage. Because the elastic air bladder is elastic, it expands after being filled with compressed air, storing the energy of the compressed air.

[0069] Control valve 470 is activated when the cleaning structure 300 scrapes and cleans the top of the mold body 10 and the annular pad 30, allowing compressed air from the elastic airbag to be ejected from the purge port 301 via the air supply pipe 460 to purge the top of the mold body 10 and the annular pad 30. In one embodiment, when the mold body 10 moves from the cleaning position P1 to the pushing-out position P2, and the scraping part 321 of the cleaning structure 300 scrapes and cleans the top of the mold body 10 and the annular pad 30, the control system activates control valve 470. Compressed air stored in the elastic airbag, under the elastic restoring force of the airbag, is ejected from the purge port 301 via the air supply pipe 460 to purge and clean the top of the mold body 10 and the annular pad 30. The purge and scraping cleaning are performed simultaneously, effectively removing residue scraped off by the scraping part 321 from the top surface of the mold body 10, thus improving the cleaning effect.

[0070] This invention utilizes the mechanical energy generated during the descent of the lifting mechanism 400 to compress air, storing the compressed air in an elastic airbag. During the cleaning process, the compressed air is released for purging and cleaning, achieving the following technical advantages: First, it realizes energy recovery and utilization. The mechanical energy that would otherwise be wasted during the descent of the lifting mechanism 400 is converted into the potential energy of the compressed air and stored, then released and utilized during the cleaning process, improving energy efficiency. Second, it eliminates the need for additional air source equipment (such as an air compressor), reducing equipment costs and energy consumption, and simplifying the equipment structure. Third, the generation of compressed air is synchronized with the descent of the lifting mechanism 400, eliminating the need for separate control and simplifying the control logic. Fourth, the elastic airbag can store a certain amount of compressed air, which is continuously released during the cleaning process, ensuring the continuity and stability of the purging and cleaning.

[0071] In some embodiments of the present invention, the purge port 301 is also connected to an external dry ice jetting device or an external carbon dioxide gas source via a medium input pipe.

[0072] In one embodiment, one end of the media input pipe is connected to the air passage inside the blowing section 322 of the scraper 320, and the other end of the media input pipe is provided with a quick connector, which can be connected to the output end of the dry ice blasting device or the output end of the carbon dioxide gas source. A switching valve may be provided on the media input pipe for switching between compressed air from the elastic airbag, the dry ice blasting device, and the carbon dioxide gas source to adapt to different cleaning needs.

[0073] For routine mold cleaning, compressed air stored in the elastic air bladder can be used for purging. For deep cleaning, dry ice particles can be introduced into the purging port 301 through the media inlet pipe. Upon contact with the mold surface, the dry ice particles rapidly sublimate, expanding dramatically in volume. The resulting impact effectively removes stubborn residues from the mold surface. Simultaneously, the low temperature of the dry ice causes the residues to cool and shrink rapidly, creating thermal stress between the residues and the mold surface, further promoting residue removal. Dry ice cleaning offers advantages such as excellent cleaning effect, no damage to the mold surface, and no residue, making it particularly suitable for deep cleaning and regular maintenance of molds.

[0074] When protective cleaning of the mold is required, carbon dioxide gas can be introduced into the purge port 301 through the media inlet pipe. The carbon dioxide gas forms an inert protective atmosphere on the mold surface, preventing oxidation of the mold with oxygen in the air at high temperatures and extending the mold's service life. Simultaneously, the purging action of the carbon dioxide gas removes loose residues and dust from the mold surface.

[0075] Please continue reading. Figure 1 , Figure 2 , Figure 3 and Figure 5 And see Figure 4 In some embodiments of the present invention, the mold cleaning device of the vulcanizing molding machine 1000 further includes a part-removing structure 500. The part-removing structure 500 is disposed on the guide structure 200 and is used to remove the vulcanized molded part 40 from the mold body 10. In one embodiment, the part-removing structure 500 is mounted on the top or side of the guide structure 200, and is located above the demolding template 20. The part-removing structure 500 and the cleaning structure 300 are spaced apart along a first horizontal direction X, with the part-removing structure 500 closer to the vulcanizing molding machine 1000 than the cleaning structure 300.

[0076] The part-removing structure 500 is used to scrape the vulcanized molded part 40 off the mold body 10 when the mold body 10 moves the demolding template 20 and the vulcanized molded part 40 from the ejection position P2 to the part-removing position P5. In one embodiment, after the mold body 10 completes demolding at the ejection position P2, the vulcanized molded part 40 is pushed out of the top of the mold body 10 by the annular pad 30, and the vulcanized molded part 40 and the mold body 10 are kept in contact only by their own weight and slight adhesion. The translation drive 110 drives the mold body 10 to move along the first horizontal direction X from the ejection position P2 to the part-removing position P5. When the mold body 10 moves past the part-removing structure 500, the part-removing structure 500 contacts the vulcanized molded part 40 and blocks the vulcanized molded part 40 from moving further, while the mold body 10 continues to move, thereby separating the vulcanized molded part 40 from the mold body 10. After separation, the vulcanized molded part 40 can fall into the collection device located below the part picking position P5, thereby realizing the automatic collection of the vulcanized molded part 40.

[0077] The free end of the translation mechanism 100 drives the mold body 10 to move the ejector plate 20 from the part removal position P5 to the cleaning position P1, so that the cleaning structure 300 scrapes the top of the mold body 10 to clean the mold body 10. In one embodiment, after the vulcanized molded part 40 is removed, the top surface of the mold body 10 and the top surface of the annular pad 30 are exposed. The translation drive 110 continues to drive the mold body 10 to move along the first horizontal direction X from the part removal position P5 to the cleaning position P1. The mold body 10 moves past the bottom of the cleaning structure 300 to reach the cleaning position P1.

[0078] After the free end of the translation mechanism 100 drives the mold body 10 to move the ejector plate 20 from the cleaning position P1 to the ejection position P2, the mold body 10 is reconnected to the lifting end of the lifting mechanism 400 and driven to move the translation mechanism 100 from the ejection position P2 to the initial position P4. In one embodiment, the translation drive 110 drives the mold body 10 to move along the first horizontal direction X from the cleaning position P1 to the ejection position P2. During the movement, the scraping part 321 of the cleaning structure 300 abuts against the top surface of the mold body 10 and the top surface of the annular pad 30 and generates a scraping action, scraping away the residue on the top surface of the mold body 10 and the top surface of the annular pad 30, thus cleaning the mold. After the mold body 10 reaches the ejection position P2, the ear plate 13 of the mold body 10 is inserted again into the through hole 401 of the socket 420 of the lifting mechanism 400, and the mold body 10 is connected to the lifting end of the lifting mechanism 400. The lifting drive component 410 drives the socket 420 to raise the mold body 10 and the translation mechanism 100 from the push-out position P2 to the initial position P4. The insert block 21 of the ejector plate 20 is dislodged from the insertion hole 12 of the mold body 10, and the annular pad 30 is reset downwards, completing a complete cleaning cycle.

[0079] The embodiment of the present invention provides a part-removing structure 500 to scrape the vulcanized molded part 40 from the mold body 10, which has the following technical effects: First, it realizes the automatic removal of the vulcanized molded part 40 without manual removal, thereby improving the degree of automation and production efficiency; Second, the part-removing structure 500 and the cleaning structure 300 are set separately, and the part removal and cleaning are carried out at different positions, avoiding the interference of the vulcanized molded part 40 with the cleaning process and ensuring the cleaning effect; Third, during the process of the mold body 10 moving from the ejection position P2 to the cleaning position P1, the part is first removed by the part-removing structure 500 and then cleaned by the cleaning structure 300, which makes the order of part removal and cleaning reasonable and the process smooth.

[0080] Please continue reading. Figure 4 In some embodiments of the present invention, the part-retrieving structure 500 includes two stops 510. The two stops 510 are spaced apart along the second horizontal direction Y on both sides of the free end of the translation drive member 110, and the two stops 510 are respectively mounted on two slide rails 120. In one embodiment, the two stops 510 are respectively fixedly installed on the top of the two slide rails 120, the two stops 510 are arranged opposite each other along the second horizontal direction Y, and a channel is formed between the two stops 510 for the free end of the translation mechanism 100 to pass through, so that the free end of the translation mechanism 100 can pass through the two stops 510; the distance between the two stops 510 is less than the maximum external dimension of the vulcanized molded part 40 along the second horizontal direction Y, so that the vulcanized molded part 40 can be blocked by the stops 510 when it moves with the mold body 10.

[0081] In one embodiment, the stop 510 can be made of materials such as a metal plate, a plastic plate, or a rubber plate. In a preferred embodiment, the stop 510 is made of a metal plate, which has sufficient strength and rigidity to withstand the impact force of the vulcanized molded part 40. The side of the stop 510 facing the ejection position P2 can be configured as a flat surface or an arc surface, so as to smoothly scrape away the vulcanized molded part 40 when in contact with it. In one embodiment, the side of the stop 510 facing the ejection position P2 is configured as an arc surface protruding in the direction of the ejection position P2. The arc surface can guide the vulcanized molded part 40 to slide upward or to both sides, so that the vulcanized molded part 40 can be smoothly separated from the mold body 10.

[0082] The height of the stop block 510 can be adjusted to accommodate vulcanized molded parts 40 of different thicknesses. In one embodiment, a height adjustment mechanism is provided between the stop block 510 and the slide rail 120. The height adjustment mechanism can be adjusted by bolts, shims, or lead screws. By adjusting the height adjustment mechanism, the height position of the stop block 510 relative to the slide rail 120 can be changed to accommodate vulcanized molded parts 40 of different thicknesses.

[0083] To facilitate understanding, the following will be combined with Figures 1 to 7 The working process of the mold cleaning device of the vulcanizing molding machine 1000 according to an embodiment of the present invention will be described in detail below: Step S1: In the initial state, the mold body 10 is located at processing position P3. The annular groove 11 inside the mold body 10 is filled with rubber raw material. The lifting platform 1100 lifts the mold body 10 to close with the upper mold of the vulcanizing molding machine 1000 for vulcanization molding. During the vulcanization molding process, the rubber raw material undergoes a cross-linking reaction under high temperature and high pressure to form a vulcanized molded part 40.

[0084] Step S2: After vulcanization molding is completed, the lifting platform 1100 descends, and the mold body 10 separates from the upper mold. The translation drive 110 drives the mold body 10 to move from the processing position P3 to the initial position P4 along the first horizontal direction X. During the movement, the ear plate 13 of the mold body 10 extends into the through hole 401 of the socket 420 of the lifting mechanism 400 along the first horizontal direction X. The ear plate 13 and the socket 420 form a plug-in fit, and the mold body 10 is connected to the lifting end of the lifting mechanism 400.

[0085] Step S3: The lifting drive 410 drives the socket 420 to lower the mold body 10 and translation mechanism 100 from the initial position P4 to the ejection position P2. During the descent, the mold body 10 moves downward relative to the ejector plate 20, and the insert 21 of the ejector plate 20 extends upward relative to the mold body 10 into the insertion hole 12. The top of the insert 21 abuts against the bottom of the annular pad 30, pushing the annular pad 30 upward. When the mold body 10 descends to the ejection position P2, the annular pad 30 is pushed up until its top is flush with the opening of the annular groove 11, and the vulcanized molded part 40 is ejected from the top of the mold body 10, achieving demolding. At the same time, the connecting rod 440 descends synchronously with the socket 420, and the connecting rod 440 pushes the piston to move downward in the air cylinder 450, forcing the air in the air cylinder 450 into the elastic air bag for storage.

[0086] Step S4: The translation drive 110 drives the mold body 10 to move the demolding template 20 and the vulcanized molded part 40 along the first horizontal direction X from the ejection position P2 to the take-up position P5. During the movement, when the mold body 10 passes the take-up structure 500, the stop 510 of the take-up structure 500 contacts the vulcanized molded part 40 and prevents the vulcanized molded part 40 from moving further. The vulcanized molded part 40 separates from the mold body 10 and falls into the collection device.

[0087] Step S5: The translation drive 110 continues to drive the mold body 10, causing the ejector plate 20 to move along the first horizontal direction X from the part removal position P5 to the cleaning position P1. During the movement, the mold body 10 passes under the cleaning structure 300.

[0088] Step S6: The translation drive 110 drives the mold body 10 to move the ejector plate 20 back to the push-out position P2 along the first horizontal direction X from the cleaning position P1. During the movement, the scraping part 321 of the cleaning structure 300 abuts against the top surface of the mold body 10 and the top surface of the annular pad 30 and generates a scraping action, scraping away the residue on the top surface of the mold body 10 and the top surface of the annular pad 30. At the same time, the control valve 470 is opened, and the compressed air stored in the elastic airbag is sprayed out from the blow-out port 301 through the air supply pipe 460 to blow clean the top of the mold body 10 and the annular pad 30, blowing away the residue scraped by the scraping part 321 from the top surface of the mold body 10.

[0089] Step S7: After the mold body 10 returns to the ejected position P2, the ear plate 13 of the mold body 10 is inserted again into the through hole 401 of the socket 420 of the lifting mechanism 400, and the mold body 10 is connected to the lifting end of the lifting mechanism 400. The lifting drive component 410 drives the socket 420 to move the mold body 10 and the translation mechanism 100 from the ejected position P2 to the initial position P4. During the rising process, the mold body 10 moves upward relative to the ejector plate 20, the insert block 21 of the ejector plate 20 disengages downward relative to the mold body 10 from the insertion hole 12, and the annular pad 30 returns to the bottom wall of the annular groove 11 under its own gravity. At the same time, the connecting rod 440 rises synchronously with the socket 420, the piston moves upward in the air cylinder 450, and the elastic airbag draws in air from the external environment through the air intake one-way valve 480 for replenishment.

[0090] Step S8: The translation drive 110 drives the mold body 10 to move along the first horizontal direction X from the initial position P4 to the processing position P3. During the movement, the ear plate 13 of the mold body 10 moves out of the through hole 401 of the socket 420 of the lifting mechanism 400 along the first horizontal direction X, the ear plate 13 separates from the socket 420, and the mold body 10 disengages from the lifting end of the lifting mechanism 400. After the mold body 10 reaches the processing position P3, the next vulcanization molding process can be performed.

[0091] By repeating steps S1 to S8 above, continuous automated operation of vulcanization molding and mold cleaning can be achieved.

[0092] The mold cleaning device of the vulcanizing molding machine 1000 in this embodiment of the invention, through the cooperation of the translation mechanism 100 and the lifting mechanism 400, realizes the automatic transfer of the mold body 10 between the processing position P3, the initial position P4, the ejection position P2, the part removal position P5, and the cleaning position P1; through the cooperation of the insert block 21 of the ejector plate 20 with the insert hole 12 of the mold body 10, the annular pad 30 is automatically ejected and reset, so that the top of the annular pad 30 is flush with the groove opening of the annular groove 11, eliminating cleaning dead corners; through the combination of scraping cleaning and blowing cleaning by the cleaning structure 300, the top of the mold body 10 and the annular pad 30 are thoroughly cleaned; through the part removal structure 500, the vulcanized molded part 40 is automatically removed; through the compression of air during the descent of the lifting mechanism 400 and its storage in the elastic air bladder, energy recovery and utilization are realized. The entire cleaning process is highly automated, requires no manual intervention, and significantly improves production efficiency and cleaning effect.

[0093] The above description is merely an exemplary embodiment of the present invention and does not limit the scope of protection of the present invention. Any equivalent structural transformations made based on the technical concept of the present invention and the contents of the specification and drawings of the present invention, or direct / indirect applications in other related technical fields, are included within the scope of protection of the present invention.

Claims

1. A mold cleaning device for a vulcanizing molding machine, used for cleaning the mold including a mold body and a demolding platen, wherein the mold body has an annular groove, an annular pad is detachably disposed in the annular groove, an insertion hole is provided on the bottom wall of the annular groove, the demolding platen is spaced below the mold body, and an insertion block is provided on the demolding platen corresponding to the insertion hole, characterized in that, The mold cleaning device of the vulcanizing molding machine includes: A translation mechanism, the free end of which is connected to the mold body; The guide structure includes a translation mechanism located on its outer periphery. The guide structure is equipped with a cleaning structure located away from the vulcanizing molding machine. A cleaning position and a push-out position are sequentially formed in a first horizontal direction extending from the cleaning structure toward the vulcanizing molding machine. The demolding template is slidably disposed on the guide structure in the horizontal direction and is capable of moving between the push-out position and the cleaning position. The insert block is configured such that when the mold body and the ejector plate are closed at the ejection position, the insert block can extend into the insertion hole and push the annular pad upward until the top of the annular pad is flush with the opening of the annular groove; the cleaning structure is configured such that when the mold body moves between the ejection position and the cleaning position, the cleaning structure can scrape and clean the top of the mold body and the annular pad.

2. The mold cleaning device for the vulcanizing molding machine as described in claim 1, characterized in that, The cleaning structure includes a mounting base and a scraping strip. The mounting base is mounted on the guide structure, and the scraping strip is mounted on the mounting base. The bottom of the scraping strip on the side facing the cleaning position protrudes to form a scraping portion extending along a second horizontal direction. The first horizontal direction and the second horizontal direction intersect. The thickness of the scraping portion extending vertically gradually increases along the first horizontal direction towards the direction close to the ejection position. The scraping portion is used to abut against the top of the mold body and the annular pad when the mold body is reset from the cleaning position to the ejection position.

3. The mold cleaning device for the vulcanizing molding machine as described in claim 2, characterized in that, The top of the scraper bar protrudes towards the cleaning position and forms a blowing section extending along the second horizontal direction. The blowing section extends above the scraper bar along the first horizontal direction. The blowing section and the scraper bar are connected by a transition section. The transition section has an arc-shaped structure that arches from the cleaning position toward the ejection position. The blowing section forms a blowing port that faces the top of the mold body and the annular pad.

4. The mold cleaning device for the vulcanizing molding machine as described in claim 3, characterized in that, The vulcanizing molding machine includes a lifting platform that forms a processing position; the translation mechanism includes a translation drive, two slide rails, and multiple vertical rods. The two slide rails are spaced apart along a second horizontal direction, and both slide rails extend along a first horizontal direction. The lifting platform and the guide structure are spaced apart between the two slide rails along the first horizontal direction. The mold body is slidably mounted between the two slide rails along the first horizontal direction. The multiple vertical rods are spaced apart on the outer sides of the two slide rails, and the two slide rails are vertically movable. The lifting platform has two slide rails extending from one end of the lifting platform and connected to the fixed end of the translation drive. The lifting platform has a vertical clearance groove that extends along the first horizontal direction. The free end of the translation drive corresponds to the vertical clearance groove and extends along the first horizontal direction and is connected to the mold body. The translation drive is used to drive the mold body to move between an initial position away from the lifting platform and a processing position. The processing position is located above the ejection position.

5. The mold cleaning device for the vulcanizing molding machine as described in claim 4, characterized in that, The mold body is provided with ear plates on both sides corresponding to the positions of the two slide rails, and the ear plates extend along the first horizontal direction; the mold cleaning device of the vulcanizing molding machine also includes a lifting mechanism, the lifting end of the lifting mechanism is set at the initial position, and the free end of the translation drive is also used to drive the mold body to move the ear plates into or out of the lifting end of the lifting mechanism along the first horizontal direction, correspondingly causing the ear plates to insert into or disengage from the lifting end of the lifting mechanism. When the translation mechanism drives the mold body to move from the processing position to the initial position, the mold body is connected to the lifting end of the lifting mechanism through the ear plates. The lifting mechanism is connected in the following way: the lifting end of the lifting mechanism is used to drive the mold body to move the translation mechanism from the initial position to the ejection position, so that the insert of the demolding mold insert extends into the insertion hole to eject the annular pad in the annular groove upward. When the top of the annular pad is flush with the groove opening of the annular groove, the vulcanized molded part in the annular groove is ejected from the top of the mold body. The lifting end of the lifting mechanism is also used to drive the mold body to move the translation mechanism from the ejection position to the initial position, so that the insert of the demolding mold insert moves downward out of the insertion hole to reset the annular pad in the annular groove downward.

6. The mold cleaning device for a vulcanizing molding machine as described in claim 5, characterized in that, The lifting mechanism includes a lifting drive and a socket. The lifting drive is located at the initial position, and the lifting end of the lifting drive is located at the initial position. The socket is installed at the lifting end of the lifting drive and has a through hole extending along the first horizontal direction. The free end of the translation drive is also used to drive the mold body to move the ear plate into or out of the through hole along the first horizontal direction, correspondingly causing the ear plate to insert into or disengage from the socket. The lifting end of the lifting drive is used to drive the socket to lower the mold body and the translation mechanism from the initial position to the disengaged position.

7. The mold cleaning device for the vulcanizing molding machine as described in claim 6, characterized in that, The lifting mechanism further includes a base, a connecting rod, a piston, and an air cylinder. The fixed end of the lifting drive component and the air cylinder are spaced apart and installed on the top of the base. A receiving space is formed within the base, housing an elastic airbag. The air cylinder extends vertically, as does the connecting rod. The top end of the connecting rod is connected to the socket, and the bottom end of the connecting rod extends into the air cylinder and slides against the inner wall of the air cylinder via the piston. The air outlet of the air cylinder communicates with the first air inlet of the elastic airbag, and the first air outlet of the elastic airbag communicates with the purge port via an air supply pipe. A connection is provided between the air supply pipe and the purge port. The system is equipped with a control valve. The second air inlet of the elastic airbag is connected to the external environment through an air inlet check valve, and the second air outlet of the elastic airbag is connected to the external environment through a pressure relief valve. The connecting rod is used to push the piston downward to compress the air in the air cylinder to the elastic airbag when the lifting end of the lifting drive drives the socket to descend from the initial position to the outward position. The control valve is used to open when the cleaning structure scrapes and cleans the top of the mold body and the annular pad, so that the compressed air in the elastic airbag is sprayed out from the blow-out port through the air supply pipe to blow-out the top of the mold body and the annular pad.

8. The mold cleaning device for a vulcanizing molding machine as described in claim 7, characterized in that, The purge port is also connected to an external dry ice spraying device or an external carbon dioxide gas source via a medium input pipe.

9. The mold cleaning device for a vulcanizing molding machine as described in any one of claims 5 to 8, characterized in that, The mold cleaning device of the vulcanizing molding machine further includes a part-removing structure, which is disposed on the guide structure. The part-removing structure and the cleaning structure are spaced apart along the first horizontal direction, and a part-removing position is formed between the part-removing structure and the vulcanizing molding machine. The part-removing structure is used to scrape the vulcanizing molded part off the mold body when the mold body moves the demolding plate and the vulcanizing molded part from the ejection position to the part-removing position. The free end of the translation mechanism then drives the mold body to move the demolding plate from the part-removing position to the cleaning position, so that the cleaning structure scrapes the top of the mold body to clean the mold body. After the free end of the translation mechanism drives the mold body to move the demolding plate from the cleaning position to the ejection position, the mold body is reconnected to the lifting end of the lifting mechanism and the mold body drives the translation mechanism to rise from the ejection position to the initial position.

10. The mold cleaning device for a vulcanizing molding machine as described in claim 9, characterized in that, The component retrieval structure includes two blocks, which are spaced apart along the second horizontal direction on both sides of the free end of the translation drive component, and are respectively mounted on the two slide rails.