Vulcanizing device for vehicle door rubber sealing strip

Abstract

The utility model relates to the technical field of rubber sealing strips, in particular to a vulcanizing device for a rubber sealing strip of a vehicle door, which comprises a rubber sealing strip vulcanizing and welding device, an automatic rubber strip heating and taking device and an automatic moving vulcanizing and welding positioning device, and the rubber sealing strip vulcanizing and welding device comprises a fixing frame, a fixed die, a movable die and a welding cavity die. A hydraulic cylinder is connected to the top of the fixing frame, a vulcanization welding glue injection bin penetrates through the fixed mold, the bottom of the hydraulic cylinder penetrates through a top plate of the top of the fixing frame and is connected with the top of the movable mold at the top in the fixing frame, and the welding cavity mold is located at the top of the fixed mold. According to the automatic rubber strip heating and taking device, the heating and taking processes of rubber strips are automatically completed, accurate positioning of a welding cavity mold can be achieved by automatically moving the vulcanization welding positioning device, it is ensured that a rubber injection hole below the welding cavity mold is accurately aligned with the center point of a vulcanization welding rubber injection bin, the complexity and inaccuracy of manual operation are avoided, and the production efficiency is improved. And the production efficiency and the product quality are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of rubber sealing strips, in particular to a vulcanizing device for a vehicle door rubber sealing strip. Background Art

[0002] Door rubber seals are crucial sealing components in automobiles, primarily used for securing, dustproofing, and sealing the doors. Made primarily of EPDM, a material with excellent elasticity and compression set resistance, these seals not only effectively prevent dust and moisture from entering the vehicle interior, keeping it clean and dry, but also reduce wind noise during driving, enhancing driving comfort. Furthermore, they absorb some of the impact in the event of a collision, protecting the safety of passengers.

[0003] Vulcanization of door rubber sealing strips is one of the main processing steps and the last processing step in production. The raw materials are placed into the die for processing. The processed product is extruded from the die and then enters a hot air vulcanization chamber for high-temperature vulcanization. It is then transferred via connecting rollers to the next hot air vulcanization chamber for secondary high-temperature vulcanization. The processed strips exit the hot air vulcanization chamber and enter a cooling water tank for physical cooling. Finally, they are transferred to the workers via a tractor for subsequent finished product processing.

[0004] In subsequent operations, vulcanization welding of the door rubber sealing strips is required. Vulcanization welding is to cut the produced rubber strips into a certain length, insert the cut rubber strips into the mold groove, put the mold top plate, and manually use fingers to move the heated rubber material to remove it and put it into the glue injection bin. Then, the mold is manually placed on the operating table. At this time, it is necessary to ensure that the glue injection hole under the mold is aligned with the glue injection bin, and manually move the vulcanization welding device back and forth for positioning. The work intensity is high, and the heated rubber material is easily left on the heating plate by manually moving it, affecting the quality of vulcanization welding, thereby affecting the performance and appearance of the finished product. Utility Model Content

[0005] The purpose of the utility model is to provide a vulcanizing device for a vehicle door rubber sealing strip to solve the problems raised in the above background technology.

[0006] To achieve the above purpose, the present invention provides the following technical solutions:

[0007] A vulcanizing device for a vehicle door rubber sealing strip comprises a rubber sealing strip vulcanizing welding device, an automatic rubber strip heating and material taking device, and an automatically movable vulcanizing welding positioning device located inside the rubber sealing strip vulcanizing welding device. The rubber sealing strip vulcanizing welding device comprises a fixed frame, a fixed mold, a movable mold, and a welding cavity mold. A hydraulic cylinder is connected to the top of the fixed frame, the fixed mold is located at the bottom inner portion of the fixed frame, a vulcanizing welding glue injection bin is provided through the fixed mold, the bottom of the hydraulic cylinder passes through the top plate of the fixed frame and is connected to the top of the movable mold at its inner top, and the welding cavity mold is located at the top of the fixed mold.

[0008] As a preferred solution of the present invention, the automatic movable vulcanization welding positioning device includes a movable telescopic rod and a limiter, the movable telescopic rod is located at the top of the fixed mold on the front side of the welding cavity mold, the limiter is symmetrically structured and is located on the side of the top of the fixed mold away from the movable telescopic rod, and the output end of the movable telescopic rod is connected to the lower outer wall of the welding cavity mold.

[0009] As a preferred solution of the present invention, the outer wall structure of the welding cavity mold close to the two limit members matches the structure between the two limit members. When the outer wall of the welding cavity mold abuts against the two limit members, the injection hole at the bottom of the welding cavity mold coincides with the center point of the vulcanization welding injection bin.

[0010] As a preferred solution of the present invention, the automatic heating and feeding device for the rubber strip includes a feeding plate, a feeding telescopic rod, an angle adjustment roller, a U-shaped frame, a heating table, a fixed gear, an angle adjustment gear and an adjusting motor. The heating table is embedded in the fixed mold on one side of the vulcanization welding and injection molding bin, and the feeding plate is fixed parallel to the outer wall of one side of the angle adjustment roller. The two ends of the angle adjustment roller are connected to the inner walls of both sides of the U-shaped frame through bearing seats. The fixed gear is fixed on the outer circumferential wall of the end of the angle adjustment roller on the outer wall of one side of the U-shaped frame. The output end of the adjusting motor is connected to the angle adjustment gear, and the angle adjustment gear is meshed with the fixed gear. The adjusting motor is fixed to the outer wall of the U-shaped frame, and the output end of the feeding telescopic rod is connected to the U-shaped frame.

[0011] As a preferred solution of the present invention, the diameter of the material taking plate is less than or equal to the diameter of the vulcanization welding glue injection bin.

[0012] As a preferred solution of the present invention, the welding cavity mold includes a cavity bottom plate and a cavity top plate, the cavity bottom plate is provided with a groove matching the rubber sealing strip structure, and the cavity top plate is matched with the cavity bottom plate structure and is connected by snapping.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] In response to the problems in the background technology, the present application provides an automatic heating and material-retrieving device for rubber strips, which automatically retrieves the heated rubber strips and pushes them into the vulcanizing welding glue injection bin, automatically completing the heating and material-retrieving process of the rubber strips, avoiding the tediousness and inaccuracy of manual operation, and improving production efficiency and product quality; when retrieving, the retrieving telescopic rod drives the retrieving plate on the angle-adjusting roller through the U-shaped frame to curl and scrape the rubber block on the heating table into the vulcanizing welding glue injection bin, and the angle of the retrieving plate can be adjusted as needed to ensure that the retrieving plate can easily scrape and push the rubber block on the heating table into the vulcanizing welding glue injection bin without leaving any residue, thereby ensuring the quality of vulcanizing welding and the performance and appearance of the finished product;

[0015] The automatic mobile vulcanization welding positioning device includes a movable telescopic rod and a limiter. The movable telescopic rod drives the displacement of the welding cavity mold and the interaction with the limiter to achieve precise positioning of the welding cavity mold, ensure that the injection hole below the welding cavity mold is accurately aligned with the center point of the vulcanization welding injection bin, achieve efficient vulcanization welding operations while ensuring the quality of vulcanization welding, and solve the problems of manual back and forth movement of the vulcanization welding device for positioning, which is labor-intensive and cumbersome. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a top view of the fixed mold of the utility model;

[0017] Figure 2 This is an axonometric drawing of the vulcanization welding device for rubber sealing strips of the utility model;

[0018] Figure 3 This is a schematic diagram of the cavity bottom plate of the welding cavity mold of the present invention;

[0019] Figure 4 This is a schematic diagram of the movable telescopic rod and the limiting member on the top of the fixed mold of the utility model;

[0020] Figure 5 This is a schematic diagram of the limiter of the utility model;

[0021] Figure 6 This is a side view of the automatic heating and material-removing device for rubber strips of the utility model.

[0022] In the figure: 1. Vulcanization welding device for rubber sealing strip; 11. Fixed frame; 12. Fixed mold; 121. Vulcanization welding glue injection chamber; 13. Moving mold; 14. Welding cavity mold; 15. Hydraulic cylinder; 2. Automatic heating and feeding device for rubber strip; 21. Feeding plate; 22. Feeding telescopic rod; 23. Angle adjustment roller; 24. U-shaped frame; 25. Heating table; 26. Fixed gear; 27. Angle adjustment gear; 28. Adjustment motor; 3. Automatic moving vulcanization welding positioning device; 31. Moving telescopic rod; 32. Limiting piece. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the embodiments of the present invention. Example

[0024] Each device in this application document adopts a conventional model in the prior art, and the control method is automatic control through a controller. The control circuit of the controller can be implemented by simple programming by technicians in this field. It is common knowledge in this field and will not be described in detail here.

[0025] See also Figure 1-6 The utility model provides a technical solution: a vulcanizing device for a car door rubber sealing strip, comprising a rubber sealing strip vulcanizing welding device 1, an automatic rubber strip heating and material taking device 2, and an automatic movable vulcanizing welding positioning device 3 located inside the rubber sealing strip vulcanizing welding device 1. The rubber sealing strip vulcanizing welding device 1 comprises a fixed frame 11, a fixed mold 12, a movable mold 13, and a welding cavity mold 14. A hydraulic cylinder 15 is connected to the top of the fixed frame 11. The fixed mold 12 is located at the bottom of the fixed frame 11. A vulcanizing welding glue injection bin 121 is provided on the fixed mold 12. The bottom of the hydraulic cylinder 15 passes through the top plate of the fixed frame 11 and is connected to the top of the movable mold 13 at its top. The welding cavity mold 14 is located at the top of the fixed mold 12; the welding cavity mold 14 comprises a cavity bottom plate and The cavity top plate and the cavity bottom plate are provided with a groove matching the rubber sealing strip structure, and the cavity top plate and the cavity bottom plate structure match and are interlocked; the automatic movable vulcanization welding positioning device 3 includes a movable telescopic rod 31 and a limiter 32, the movable telescopic rod 31 is located at the top of the fixed mold 12 on the front side of the welding cavity mold 14, and the limiter 32 is a symmetrical structure located at the top of the fixed mold 12 away from the movable telescopic rod 31, and the output end of the movable telescopic rod 31 is connected to the outer wall below the welding cavity mold 14; the outer wall structure of the welding cavity mold 14 close to the two limiters 32 is matched with the structure between the two limiters 32, and when the outer wall of the welding cavity mold 14 abuts against the two limiters 32, the glue injection hole at the bottom of the welding cavity mold 14 coincides with the center point of the vulcanization welding glue injection bin 121.

[0026] It should be noted that, in this embodiment, the welding cavity mold 14 includes a cavity bottom plate and a cavity top plate. The cavity bottom plate is provided with a groove matching the rubber sealing strip structure. The cavity top plate and the cavity bottom plate structure are matched and connected in a buckled manner. The output end of the movable telescopic rod 31 is fixed to the outer wall on one side below the cavity bottom plate of the welding cavity mold 14. The cavity top plate is buckled and located on the cavity bottom plate. When displacing, the controller controls the movable telescopic rod 31 to work and further drive the welding cavity mold 14 to automatically position and displace, thereby realizing precise positioning of the welding cavity mold 14.

[0027] Furthermore, the outer wall structure of the welding cavity mold 14 near the two limit members 32 matches the structure between the two limit members 32. When the outer wall of the welding cavity mold 14 abuts the two limit members 32, the glue injection hole at its bottom coincides with the center point of the vulcanization welding glue injection chamber 121, achieving efficient vulcanization welding operation while ensuring the quality of vulcanization welding. The controller controls the working progress of the movable telescopic rod 31 for displacement positioning and cooperates with the limit members 32 for limit positioning, ensuring accurate positioning. The automated system precisely controls to achieve high repeatability and low error positioning. The fine-tuning capability of the movable telescopic rod 31, combined with the fixing effect of the limit members 32, jointly acts on the welding cavity mold 14, enabling it to be quickly and accurately positioned during the vulcanization welding operation, thereby reducing the need for manual adjustment, thereby reducing operational complexity and potential human errors.

[0028] The automated positioning system not only improves work efficiency, but also ensures the quality of the vulcanization welding process. By precisely controlling the position of the welding cavity mold 14, it ensures the reproducibility and consistency of each welding, thereby improving the performance and appearance quality of the finished product. The use of the automated system reduces the operator's workload and reduces the need for manual operation, which not only improves production efficiency, but also reduces employee fatigue and possible operational errors caused by long-term repetitive work.

[0029] See also Figure 1 、 4 and 6. The automatic heating and feeding device 2 for the rubber strip includes a feeding plate 21, a feeding telescopic rod 22, an angle adjustment roller 23, a U-shaped frame 24, a heating platform 25, a fixed gear 26, an angle adjustment gear 27 and an adjusting motor 28. The heating platform 25 is embedded in the fixed mold 12 on one side of the vulcanization welding glue injection bin 121. The feeding plate 21 is fixed parallel to the outer wall of one side of the angle adjustment roller 23. The two ends of the angle adjustment roller 23 are connected to the inner walls of both sides of the U-shaped frame 24 through the bearing seat. The fixed gear 26 is fixed on the outer circumferential wall of the end of the angle adjustment roller 23 on the outer wall of one side of the U-shaped frame 24. The output end of the adjusting motor 28 is connected to the angle adjustment gear 27. The angle adjustment gear 27 is meshed with the fixed gear 26. The adjusting motor 28 is fixed to the outer wall of the U-shaped frame 24. The output end of the feeding telescopic rod 22 is connected to the U-shaped frame 24. The diameter of the feeding plate 21 is less than or equal to the diameter of the vulcanization welding glue injection bin 121.

[0030] It should be noted that, in this embodiment, the automatic heating and retrieving device 2 for the rubber strip includes a retrieving plate 21, a retrieving telescopic rod 22, an angle adjustment roller 23, a U-shaped frame 24, a heating platform 25, a fixed gear 26, an angle adjustment gear 27, and an adjustment motor 28. These components work together to realize the automatic heating and retrieving process of the rubber strip. The retrieving plate 21 is fixed parallel to the outer wall of one side of the angle adjustment roller 23. Through the cooperation of the retrieving telescopic rod 22 and the U-shaped frame 24, the retrieving plate 21 on the angle adjustment roller 23 is driven to scrape and push the heated rubber strip into the vulcanization welding glue injection chamber 121 in a curled manner.

[0031] Furthermore, when the rubber strip needs to be taken out, the retractable rod 22 drives the retracting plate 21 on the angle adjustment roller 23 through the U-shaped frame 24 to operate. The retracting plate 21 scrapes and pushes the rubber block on the heating table 25 into the vulcanizing welding and injection chamber 121 in a curled manner. This process is fully automated, avoiding the tediousness and inaccuracy of manual operation.

[0032] The angle of the take-up plate 21 can be adjusted as needed to ensure that the rubber block on the heating table 25 can be easily scraped and pushed into the vulcanization welding glue injection chamber 121 without any residue, thereby ensuring the quality of vulcanization welding and the performance and appearance of the finished product;

[0033] The vulcanization device of the door rubber sealing strip realizes the automation and precision production of the entire process from heating to vulcanization welding of the rubber strip through the innovative design of the automatic heating and feeding device 2 and the automatic moving vulcanization welding positioning device 3. This not only improves work efficiency and reduces labor intensity, but also ensures the quality stability of the product through precise control.

[0034] During operation, the two rubber strips to be vulcanized and welded are respectively inserted into the structural grooves on the cavity bottom plate of the welding cavity mold 14. This step ensures that the rubber strips maintain the correct position and shape during the vulcanization process. After the rubber strips are installed, the cavity top plate is buckled to close the welding cavity mold 14 and prepare for vulcanization welding. At the same time, the material-retrieving telescopic rod 22 drives the material-retrieving plate (21) on the angle-adjusting roller 23 through the U-shaped frame 24 to operate. The material-retrieving plate 21 scrapes the rubber block on the heating table 25 into the vulcanization welding glue injection bin 121 in a curled manner. This step automatically completes the heating and material-retrieving of the rubber strips, avoiding the tediousness and inaccuracy of manual operation. The controller controls the mobile telescopic rod 31 to work. The movable telescopic rod 31 drives the welding cavity mold 14 to move. When the outer wall of the welding cavity mold 14 abuts against the two limit members 32, the glue injection hole at its bottom coincides with the center point of the vulcanization welding glue injection bin 121, ensuring the precise positioning of the welding cavity mold 14. At this time, the hydraulic cylinder 15 drives the movable mold 13 to work, and the movable mold 13 moves down to limit the top of the welding cavity mold 14. The welding glue injection assembly on the top of the fixed mold 12 performs glue injection welding. After welding is completed, the hydraulic cylinder 15 drives the movable mold 13 to reset, and the movable telescopic rod 31 drives the welding cavity mold 14 to reset, preparing for the next welding operation, removing the vulcanization welded rubber strip, and inserting a new rubber strip to be welded, and repeating the above process to perform the next cycle of operation.

[0035] The working process of this utility model:

[0036] When in use, the two rubber strips to be vulcanized and welded are respectively inserted into the structural grooves on the cavity bottom plate of the welding cavity mold 14, and the cavity top plate is buckled. At the same time, the material-taking telescopic rod 22 drives the material-taking plate 21 on the angle-adjusting roller 23 to operate through the U-shaped frame 24. The material-taking plate 21 scrapes the rubber block on the heating table 25 into the vulcanization welding glue injection bin 121 in a curled manner. The controller controls the mobile telescopic rod 31 to work, and the mobile telescopic rod 31 drives the welding cavity mold 14 to move. When the outer wall of the welding cavity mold 14 is aligned with the two limiting walls, the material-taking plate 21 is moved to the bottom of the vulcanization welding glue injection bin 121. When the positioning parts 32 are in contact, the glue injection hole at the bottom thereof coincides with the center point of the vulcanization welding glue injection bin 121. At this time, the hydraulic cylinder 15 drives the movable mold 13 to work, and places the glue block to be heated on the heating table 25. The movable mold 13 moves downward to limit the top of the welding cavity mold 14, and the welding glue injection assembly on the top of the fixed mold 12 performs glue injection welding. After the welding is completed, the hydraulic cylinder 15 drives the movable mold 13 to reset, and the mobile telescopic rod 31 drives the welding cavity mold 14 to reset, removes the vulcanization welded rubber strip, and inserts a new rubber strip to be welded to carry out the downward movement process.

[0037] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A vulcanizing device for a vehicle door rubber sealing strip, comprising a rubber sealing strip vulcanizing welding device (1), a rubber strip automatic heating and material taking device (2), and an automatic movable vulcanizing welding positioning device (3) located inside the rubber sealing strip vulcanizing welding device (1), characterized in that: The rubber sealing strip vulcanization welding device (1) comprises a fixed frame (11), a fixed mold (12), a movable mold (13) and a welding cavity mold (14); the top of the fixed frame (11) is connected to a hydraulic cylinder (15); the fixed mold (12) is located at the bottom of the fixed frame (11); a vulcanization welding glue injection chamber (121) is provided on the fixed mold (12); the bottom of the hydraulic cylinder (15) passes through the top plate of the fixed frame (11) and is connected to the top of the movable mold (13) at the top of the fixed frame (11); and the welding cavity mold (14) is located at the top of the fixed mold (12).

2. The vulcanizing device for a vehicle door rubber sealing strip according to claim 1, characterized in that: The automatic movable vulcanization welding positioning device (3) comprises a movable telescopic rod (31) and a limiting member (32), wherein the movable telescopic rod (31) is located at the top of the fixed mold (12) on the front side of the welding cavity mold (14), and the limiting member (32) is symmetrically structured and located at the top of the fixed mold (12) away from the movable telescopic rod (31). The output end of the movable telescopic rod (31) is connected to the lower outer wall of the welding cavity mold (14).

3. The vulcanizing device for a vehicle door rubber sealing strip according to claim 2, characterized in that: The outer wall structure of the welding cavity mold (14) on one side close to the two limiting members (32) matches the structure between the two limiting members (32); when the outer wall of the welding cavity mold (14) abuts against the two limiting members (32), the glue injection hole at the bottom of the welding cavity mold (14) coincides with the center point of the vulcanization welding glue injection bin (121).

4. The vulcanizing device for a vehicle door rubber sealing strip according to claim 1, characterized in that: The automatic heating and feeding device (2) for the rubber strip comprises a feeding plate (21), a feeding telescopic rod (22), an angle adjustment roller (23), a U-shaped frame (24), a heating table (25), a fixed gear (26), an angle adjustment gear (27) and an adjustment motor (28), wherein the heating table (25) is embedded in the fixed mold (12) on one side of the vulcanization welding glue injection bin (121), the feeding plate (21) is fixedly positioned parallel to the outer wall of one side of the angle adjustment roller (23), and the two ends of the angle adjustment roller (23) are connected by bearings. The seat is connected to the inner walls of both sides of the U-shaped frame (24); the fixed gear (26) is fixed on the outer circumferential wall of the end of the angle adjustment roller (23) on the outer wall of one side of the U-shaped frame (24); the output end of the adjustment motor (28) is connected to the angle adjustment gear (27); the angle adjustment gear (27) is meshed and connected to the fixed gear (26); the adjustment motor (28) is fixed to the outer wall of the U-shaped frame (24); and the output end of the material-retrieving telescopic rod (22) is connected to the U-shaped frame (24).

5. The vulcanizing device for a vehicle door rubber sealing strip according to claim 4, characterized in that: The diameter of the material taking plate (21) is smaller than or equal to the diameter of the vulcanized welding glue injection bin (121).

6. The vulcanizing device for a vehicle door rubber sealing strip according to claim 1, characterized in that: The welding cavity mold (14) comprises a cavity bottom plate and a cavity top plate, wherein a groove matching the rubber sealing strip structure is provided on the cavity bottom plate, and the cavity top plate and the cavity bottom plate structure are matched and buckled and connected.

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