Sealing structure of vacuum glue injection machine

Abstract

The utility model relates to the technical field of glue production equipment, and discloses a sealing structure of a vacuum glue injection machine, which comprises a sealing element body, a sealing disc is mounted at the top of the sealing element body, and a connecting disc is mounted at the top of the sealing disc. The connecting disc comprises a positioning disc, and a fixing disc is installed on the top of the positioning disc. A positioning sleeve is arranged on the outer side wall of the fixing disc, three air cylinders distributed in a triangular shape are fixedly installed on the outer side wall of the positioning sleeve, and the output ends of the air cylinders all penetrate through the inner side wall of the positioning sleeve and are fixedly connected with movable rods. According to the utility model, the movable rod is driven by the air cylinder to drive the arc-shaped clamping plate to clamp and fix the glue injection pipe, so that the glue injection pipe can be effectively prevented from displacing, shaking or loosening due to vibration, pressure change or other external force factors in the glue injection process. And the position of the glue injection pipe is always kept accurate, so that the glue can be accurately injected into the preset position of the rubber product.

Description

Technical Field

[0001] This utility model relates to the field of rubber production equipment technology, and specifically to a sealing structure for a vacuum dispensing machine. Background Technology

[0002] In the rubber production sector, as the market demands for the quality and production efficiency of rubber products continue to increase, the performance optimization of equipment for vacuum injection molding is crucial, as it is a key process.

[0003] However, existing technologies have the following shortcomings: In the sealing structure of traditional dispensing machines, the dispensing tube is prone to displacement, shaking, or loosening during operation due to vibration, pressure changes, or other external forces. This not only affects the accuracy and uniformity of dispensing but may also damage the sealing structure. Traditional sealing structures often have sealing gaps at the connection points between the sealing body and other components, such as the sealing body and the sealing disc, or the dispensing tube and the positioning disc, which can lead to glue leakage. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a sealing structure for a vacuum dispensing machine.

[0005] This utility model discloses a sealing structure for a vacuum dispensing machine, comprising a sealing body, a sealing disc mounted on the top of the sealing body, and a connecting disc mounted on the top of the sealing disc. The connecting disc includes a positioning disc, and a fixing disc is mounted on the top of the positioning disc. A positioning sleeve is provided on the outer wall of the fixing disc, and three cylinders arranged in a triangular pattern are fixedly mounted on the outer wall of the positioning sleeve. The output ends of the cylinders all penetrate the inner wall of the positioning sleeve and are fixedly connected to movable rods. Three sliding grooves matching the movable rods are formed on the outer wall of the fixing disc. The movable rods are slidably connected to the inner walls of the corresponding sliding grooves, and arc-shaped clamps are fixedly connected to the movable rods. The arc-shaped clamps are clamped and connected to the dispensing tube, thereby achieving stable fixation and sealing assistance for the dispensing tube.

[0006] Furthermore, the inner wall of the sealing component body has an inner cavity, and an injection tube is installed on the inner wall of the inner cavity. The output end of the injection tube is connected to an injection nozzle. A threaded groove is provided at the top of the inner wall of the injection tube to facilitate threaded connection with the output end of the injection machine, ensuring smooth delivery of the adhesive.

[0007] Furthermore, the sealing body and the sealing disc are sealed together by a sealing block at the bottom center of the sealing disc and a first sealing groove at the top center of the sealing body, which effectively prevents glue from leaking from the joint and improves the overall sealing performance.

[0008] Furthermore, a second sealing groove is provided on the inner side wall of the positioning plate, and a sealing ring is installed on the inner side wall of the second sealing groove. The sealing ring fits tightly with the outer side wall of the glue injection tube, which further enhances the sealing effect of the glue injection tube, prevents glue from seeping out at the contact point between the glue injection tube and the positioning plate, and ensures the sealing and stability of the glue injection process.

[0009] Furthermore, the top of the fixed plate is provided with several positioning screw holes arranged in a polar array. These positioning screw holes can be used for precise connection and positioning with other parts of the vacuum dispensing machine, ensuring that the entire sealing structure is installed in the correct position in the equipment. This ensures the synergistic effect of the sealing structure and other parts of the dispensing machine, and improves the overall performance and working efficiency of the equipment.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0011] This solution uses a cylinder-driven movable rod to clamp and fix the dispensing tube with an arc-shaped clamping plate, effectively preventing displacement, shaking, or loosening of the dispensing tube during the dispensing process due to vibration, pressure changes, or other external forces. This ensures the dispensing tube remains accurately positioned, guaranteeing precise injection of adhesive into the designated location on the rubber product. This improves dispensing accuracy and uniformity, contributing to enhanced overall quality and performance of the rubber product. The stable tube fixing method not only ensures smooth dispensing but also strengthens the stability of the entire sealing structure. It avoids deformation or damage to the sealing structure that could result from dispensing tube instability, extending the service life of the sealing structure and reducing equipment maintenance and replacement costs.

[0012] In this design, the sealing body and sealing disc, through the cooperation of the sealing block and sealing groove, and the sealing ring between the positioning disc and the injection tube, form multiple sealing defenses. This effectively prevents adhesive from seeping out from any possible leakage points, ensuring the sealing performance of the injection process. This, in turn, guarantees the accuracy and stability of the adhesive injection volume during rubber production, contributing to improved quality consistency of rubber products. During vacuum injection in rubber production, the excellent sealing structure maintains the vacuum level within the vacuum chamber, preventing external air from entering and allowing the injection operation to proceed in a stable vacuum environment. This facilitates better penetration and filling of the internal gaps in the rubber product under vacuum conditions, avoiding the formation of air bubbles and pores, further improving the performance and quality of the rubber product. Attached Figure Description

[0013] Figure 1 This is a three-dimensional schematic diagram of a sealing structure for a vacuum dispensing machine proposed in this utility model;

[0014] Figure 2 This is a vertical sectional view of a sealing structure for a vacuum dispensing machine proposed in this utility model;

[0015] Figure 3 This is a top view schematic diagram of a sealing structure for a vacuum dispensing machine proposed in this utility model.

[0016] In the figure: 1-Seal body; 2-Inner cavity; 3-Injection tube; 4-Injection nozzle; 5-Sealing disc; 6-First sealing groove; 7-Connecting disc; 8-Positioning disc; 9-Sealing ring; 10-Second sealing groove; 11-Cylinder; 12-Positioning sleeve; 13-Slide groove; 14-Fixed disc; 15-Modular rod; 16-Arc-shaped clamp; 17-Positioning screw hole. Detailed Implementation

[0017] The present invention will be further described below with reference to specific embodiments.

[0018] like Figures 1 to 3 As shown, the vacuum dispensing machine sealing structure of this utility model includes a sealing body 1, a sealing disc 5 mounted on the top of the sealing body 1, and a connecting disc 7 mounted on the top of the sealing disc 5. The connecting disc 7 includes a positioning disc 8, and a fixing disc 14 is mounted on the top of the positioning disc 8. A positioning sleeve 12 is provided on the outer wall of the fixing disc 14, and three cylinders 11 arranged in a triangular pattern are fixedly installed on the outer wall of the positioning sleeve 12. The output ends of the cylinders 11 all penetrate the inner wall of the positioning sleeve 12 and are fixedly connected to a movable rod 15. The outer wall of the fixed plate 14 is provided with three grooves 13 that match the movable rod 15. The movable rod 15 is slidably connected to the inner wall of the corresponding groove 13. The movable rod 15 is fixedly connected to an arc-shaped clamp 16, which is clamped and connected to the glue injection tube 3, thereby achieving stable fixation and sealing assistance for the glue injection tube 3. When the cylinder 11 receives the command and starts working, its output end will forcefully push the movable rod 15 to slide smoothly in the groove 13 that is carefully designed to match the movable rod 15 on the outer wall of the fixed plate 14, thereby driving the arc-shaped clamp 16 to move precisely. The arc-shaped clamp 16 is tightly clamped to the injection tube 3. Through the precise extension and retraction of the cylinder 11, the clamping force and angle of the arc-shaped clamp 16 on the injection tube 3 can be flexibly adjusted. This not only ensures the stability of the injection tube 3 during the rubber production process and prevents it from shifting or loosening due to vibration or other external forces, thus affecting the accuracy and uniformity of the injection, but also provides strong support for the stability and sealing of the entire sealing structure. This ensures that the glue can be continuously and stably injected into the rubber products, meeting the strict requirements of the injection process in the rubber production process.

[0019] The inner wall of the sealing body 1 has an inner cavity 2, and an injection tube 3 is installed on the inner wall of the inner cavity 2. The output end of the injection tube 3 is connected to an injection nozzle 4. A threaded groove is opened at the top of the inner wall of the injection tube 3 to facilitate threaded connection with the output end of the injection machine, ensuring smooth delivery of glue. The sealing body 1 and the sealing disc 5 are sealed together by a sealing block at the bottom center of the sealing disc 5 and a first sealing groove 6 opened at the top center of the sealing body 1, effectively preventing glue leakage from the connection between the two and improving the overall sealing performance. The inner wall of the positioning disc 8 has a second sealing groove 10, and the inner wall of the second sealing groove 10... A sealing ring 9 is installed on the side wall, which fits tightly against the outer side wall of the dispensing tube 3, further enhancing the sealing effect of the dispensing tube 3 and preventing glue from seeping out at the contact point between the dispensing tube 3 and the positioning plate 8. This ensures the sealing and stability of the dispensing process. The top of the fixed plate 14 has several positioning screw holes 17 arranged in a polar axis array. These positioning screw holes 17 can be used for precise connection and positioning with other components of the vacuum dispensing machine, ensuring that the entire sealing structure is installed in the correct position in the equipment. This ensures the coordinated working effect of the sealing structure and other parts of the dispensing machine, improving the overall performance and working efficiency of the equipment.

[0020] Working Principle: The sealing body 1 serves as the basic load-bearing component, and its carefully designed inner cavity 2 provides a stable placement space for the injection tube 3. The injection tube 3 is tightly threaded to the output end of the injection machine through a threaded groove on the top of its inner wall, ensuring that the glue can be smoothly and stably delivered from the injection machine to the injection tube 3, and finally accurately injected into the rubber mold or the rubber product to be processed through the injection nozzle 4. The sealing disc 5 on the top of the sealing body 1 forms a reliable first line of defense for sealing. The sealing block at the bottom center of the sealing disc 5 perfectly matches the first sealing groove 6 opened at the top center of the sealing body 1, forming a tight sealing connection, effectively preventing glue leakage at this critical part, providing a stable base environment for subsequent glue injection operations, and avoiding the impact of glue leakage on the quality of rubber products and production progress. The positioning disc 8 in the connecting disc 7 plays an important positioning and auxiliary sealing role in the entire sealing structure. The sealing ring 9 installed in the second sealing groove 10 on its inner side wall fits tightly against the outer side wall of the injection tube 3, like a loyal guardian, further enhancing the sealing effect of the injection tube 3, ensuring that the glue will not seep out from the contact boundary between the injection tube 3 and the positioning plate 8, effectively guaranteeing the sealing and stability of the injection process in rubber production, so that the glue can be accurately injected into the rubber product according to the predetermined path and amount, thereby ensuring the consistency of the performance and quality of the rubber product.

[0021] Three triangularly arranged cylinders 11, securely mounted on the positioning sleeve 12 on the outer wall of the fixed plate 14, are the key forces for achieving precise fixation and dynamic adjustment of the injection tube 3. When the cylinder 11 receives a command and begins to work, its output end powerfully pushes the movable rod 15 to slide smoothly within the carefully designed groove 13 on the outer wall of the fixed plate 14, which matches the movable rod 15, thereby driving the arc-shaped clamping plate 16 to move precisely. The arc-shaped clamping plate 16 is tightly clamped to the injection tube 3. Through the precise extension and retraction of the cylinder 11, the clamping force and angle of the arc-shaped clamping plate 16 on the injection tube 3 can be flexibly adjusted. This not only ensures the stability of the injection tube 3 during the rubber production process, preventing it from shifting or loosening due to vibration or other external forces, thus affecting the accuracy and uniformity of the injection, but also provides strong support for the stability and sealing of the entire sealing structure, ensuring that the glue can be continuously and stably injected into the rubber product, meeting the strict requirements of the injection process in the rubber production process.

[0022] Furthermore, the positioning screw holes 17 arranged in a polar array on the top of the fixed plate 14 facilitate precise connection and positioning of the entire sealing structure with other key components of the rubber production equipment. Through these positioning screw holes 17, the sealing structure can be accurately installed in the predetermined position of the vacuum dispensing machine, working in conjunction with other equipment components to ensure the efficient and stable operation of the entire rubber production process, laying a solid foundation for the production of high-quality rubber products.

Claims

1. A sealing structure for a vacuum dispensing machine, characterized in that: The structure includes a sealing body, a sealing plate on the top of the sealing body, a connecting plate on the top of the sealing plate, a positioning plate on the connecting plate, a fixing plate on the top of the positioning plate, and a positioning sleeve on the outer side wall of the fixing plate. Three cylinders are fixedly installed on the outer wall of the positioning sleeve. The cylinders are arranged in a triangle. The output ends of the cylinders all penetrate the inner wall of the positioning sleeve. The output ends of the cylinders are fixedly connected to movable rods. The outer wall of the fixed plate has three sliding grooves that match the movable rods. The movable rods are slidably connected to the inner wall of the corresponding sliding grooves. The movable rods are fixedly connected to arc-shaped clamps.

2. The sealing structure of a vacuum dispensing machine according to claim 1, characterized in that: The inner wall of the sealing element body has an inner cavity, and an injection tube is installed on the inner wall of the inner cavity. The output end of the injection tube is connected to an injection nozzle.

3. The sealing structure of a vacuum dispensing machine according to claim 2, characterized in that: The arc-shaped clamp is connected to the glue injection tube.

4. The sealing structure of a vacuum dispensing machine according to claim 1, characterized in that: A first sealing groove is provided at the top center of the sealing body, and a sealing block is installed at the bottom center of the sealing disc, with the sealing block being sealed to the first sealing groove.

5. The sealing structure of a vacuum dispensing machine according to claim 3, characterized in that: The positioning plate has a second sealing groove on its inner side wall, and a sealing ring is installed on the inner side wall of the second sealing groove. The sealing ring is in contact with the outer side wall of the glue injection tube.

6. The sealing structure of a vacuum dispensing machine according to claim 1, characterized in that: The top of the fixed plate has several positioning screw holes arranged in a polar axis array.

7. The sealing structure of a vacuum dispensing machine according to claim 3, characterized in that: The inner wall of the dispensing tube has a threaded groove at the top, and the threaded groove is threadedly connected to the output end of the dispensing machine.

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