An automobile door frame sealing strip hot forming device
By designing a thermoforming device for automotive door frame sealing strips, and utilizing a cooling box, scraper, cleaning roller, and drying components, the problem of adhesion between the sealing strip and the conveyor belt was solved, achieving efficient cooling and cleaning, and improving the quality of the sealing strip and the cleanliness of the conveyor belt.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGXI KAWEIDIFU SEALING SYST CO LTD
- Filing Date
- 2025-06-30
- Publication Date
- 2026-06-23
AI Technical Summary
After extrusion, the sealing strip tends to stick to the conveyor belt, making it difficult to unload the material and affecting the quality and cleanliness of the conveyor belt.
A thermoforming device for automotive door frame sealing strips was designed, comprising a cooling box, a scraper, a conveyor roller, a cleaning roller, and a drying assembly. The sealing strip is separated from the conveyor belt by the scraper and the cleaning roller, and is cleaned using hard bristles and water. Cooling and drying are achieved by combining a water pump and a heater to avoid residues affecting quality.
Effective separation of the sealing strip and the conveyor belt improves the quality of the sealing strip and the cleanliness of the conveyor belt, prevents residue mixing, and enhances the practicality of the device.
Smart Images

Figure CN224391863U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of automotive parts manufacturing technology, and in particular to a thermoforming device for automotive door frame sealing strips. Background Technology
[0002] The manufacturing process of automotive door frame sealing strips requires the use of a safety injection molding system. The safety injection molding system includes multiple structures, including an injection molding device, a conveying device, a cooling device, and a drying device. The safety injection molding system can quickly and safely perform injection molding of automotive door frame sealing strips.
[0003] Currently, after the sealing strips are extruded by the extruder, they often need to be conveyed and cooled by water spraying during the conveying process. However, because the sealing strips are hot when they are just extruded, they tend to stick to the conveyor belt after falling onto it. This not only makes it difficult for subsequent material unloading, but also leaves some residue after unloading, which can easily stick to the sealing strips that fall off again, affecting the overall quality and reducing the cleanliness of the conveyor belt.
[0004] Therefore, it is necessary to provide a thermoforming device for automotive door frame sealing strips to solve the above-mentioned technical problems. Utility Model Content
[0005] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a thermoforming device for automotive door frame sealing strips.
[0006] To achieve the above objectives, the present invention adopts the following technical solution: a thermoforming device for automotive door frame sealing strips, comprising a cooling box, on both sides of which are provided with through slots; two support plates are fixedly connected to one side of the cooling box; a fixing rod is fixedly connected to the top of the two support plates; a scraper is fixedly connected to one side of the fixing rod; two conveying rollers are provided on the cooling box; a conveyor belt is drivingly connected between the outer surfaces of the two conveying rollers; a cleaning roller is rotatably connected between the front and back sides of the inner wall of the cooling box; a plurality of hard bristles are fixedly connected to the outer surface of the cleaning roller; one end of the cleaning roller is connected to one of the... A transmission mechanism is connected between the outer surfaces of the conveyor rollers. A partition is fixedly connected between the front and back sides of the inner wall of the cooling box. Several filter holes are opened on the partition. The cooling box is equipped with a drive assembly, a limiting assembly, a water supply and cooling assembly, and a drying assembly. Through the arrangement of connecting pipes, partitions, and filter holes, the bottom area of the inner wall of the cooling box can be separated, so that impurities that fall into the water due to the cleaning of the sealing strip residue on the conveyor belt can be intercepted, preventing them from being sucked up by the water pump and transported to the connecting box to obstruct the use of the nozzles, thereby improving the practicality of the device. The discharge end of the extruder is inserted into the cooling box through a slot away from the motor.
[0007] As a further description of the above technical solution:
[0008] One of the conveying rollers is rotatably connected between the front and back sides of the inner wall of the cooling box, and the other conveying roller is rotatably connected between two opposing sides of the support plates.
[0009] As a further description of the above technical solution:
[0010] Two connecting pipes are fixedly connected to one side of the cooling box. Each of the two connecting pipes is equipped with a solenoid valve. The upper connecting pipe is the water inlet pipe, and the lower connecting pipe is the drain pipe.
[0011] As a further description of the above technical solution:
[0012] The drive assembly includes a motor, which is fixedly mounted on the front of one of the support plates, and the output end of the motor is fixedly connected to one end of one of the conveying rollers.
[0013] As a further description of the above technical solution:
[0014] The limiting assembly includes four limiting rollers, which are rotatably connected to the front and back of the inner wall of the cooling box, respectively, and the outer surfaces of the four limiting rollers are in contact with the conveying rollers.
[0015] As a further description of the above technical solution:
[0016] The front of the cooling box is equipped with a controller, and heat dissipation fins are fixedly embedded on both the front and back of the cooling box.
[0017] As a further description of the above technical solution:
[0018] The water cooling assembly includes a water pump fixedly connected to the front of the cooling tank. A heat conduction box and a connecting box are fixedly connected between the front and back of the inner wall of the cooling tank. The water pump's suction end is fixedly connected to the cooling tank, and the water pump's delivery end is fixedly connected to the heat conduction box and the connecting box respectively. A drain pipe is fixedly connected to one side of the heat conduction box, and the other end of the drain pipe is fixedly connected to the cooling tank. Several nozzles are provided at the bottom of the connecting box, and the nozzles are arranged in a rectangular array.
[0019] As a further description of the above technical solution:
[0020] The drying assembly includes a warm air blower and an air box. The warm air blower is fixedly installed on the top of the cooling box, and the air box is fixedly connected inside the cooling box. The air outlet of the warm air blower is fixedly connected to the air box. The air box is provided with several air blowers. The air box is tilted, and its tilt angle is consistent with the tilt angle of the conveyor belt, so that the air blown out by the air blowers can be directly directed at the conveyor belt.
[0021] This utility model has the following beneficial effects:
[0022] 1. Compared with existing technologies, this automotive door frame sealing strip thermoforming device, through the configuration of a cooling box, scraper, conveyor belt, cleaning roller, hard brush, transmission mechanism, water pump and heater, can cool and dry the sealing strip during conveying. After the sealing strip is dried, it is scraped and separated from the conveyor belt during the continued conveying process. At the same time, as the conveyor belt continues to rotate after use, the rotating cleaning roller, together with the hard brush and water, can brush and remove the residue adhering to the sealing strip, improving the integrity of the conveyor belt and preventing the sealing strip residue from mixing with the subsequently fed sealing strip and affecting the overall quality of the sealing strip.
[0023] 2. Compared with the existing technology, the automotive door frame sealing strip thermoforming device, through the setting of connecting pipes, partitions and filter holes, can separate the bottom part of the inner wall of the cooling box, so that the impurities that fall into the water after cleaning the sealing strip residue on the conveyor belt can be intercepted, preventing them from being sucked up by the water pump and transported to the connecting box to obstruct the use of the nozzle, thereby improving the practicality of the device. Attached Figure Description
[0024] Figure 1 This is a three-dimensional schematic diagram of the overall structure of a thermoforming device for automotive door frame sealing strips proposed in this utility model.
[0025] Figure 2 This is a schematic diagram of the limiting roller and air box of a thermoforming device for automotive door frame sealing strips proposed in this utility model;
[0026] Figure 3 This is a schematic diagram of the partition and cleaning roller of a thermoforming device for automotive door frame sealing strips proposed in this utility model.
[0027] Figure 4 This is a schematic diagram of the spraying and blowing head structures of a thermoforming device for automotive door frame sealing strips proposed in this utility model.
[0028] Legend:
[0029] 1. Cooling box; 2. Slotted section; 3. Support plate; 4. Fixing rod; 5. Scraper; 6. Conveying roller; 7. Conveyor belt; 8. Cleaning roller; 9. Hard bristles; 10. Transmission mechanism; 11. Partition plate; 12. Filter hole; 13. Connecting pipe; 14. Solenoid valve; 15. Motor; 16. Limiting roller; 17. Controller; 18. Heat dissipation fins; 19. Water pump; 20. Heat transfer box; 21. Connecting box; 22. Drain pipe; 23. Nozzle; 24. Warm air blower; 25. Air box; 26. Air blower head. Detailed Implementation
[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0031] Reference Figure 1-4 This utility model provides a thermoforming device for automotive door frame sealing strips, comprising a cooling box 1, with slots 2 extending through both sides of the cooling box 1, a controller 17 on the front of the cooling box 1, and heat dissipation fins 18 fixedly embedded on both the front and back of the cooling box 1. Two support plates 3 are fixedly connected to one side of the cooling box 1, with a fixing rod 4 fixedly connected to the top of the two support plates 3, and a scraper 5 fixedly connected to one side of the fixing rod 4. Two connecting pipes 13 are fixedly connected to one side of the cooling box 1, and each of the two connecting pipes 13 is equipped with a solenoid valve 14. Two conveying rollers 6 are provided on the cooling box 1, one of which is rotatably connected between the front and back of the inner wall of the cooling box 1, and the other is rotatably connected between the opposite sides of the two support plates 3. A conveyor belt 7 is drivingly connected between the outer surfaces of the two conveying rollers 6. A cleaning roller 8 is rotatably connected between the front and back of the inner wall of the cooling box 1, and several hard brushes are fixedly connected to the outer surface of the cleaning roller 8. A transmission mechanism 10 is connected between one end of the cleaning roller 8 and the outer surface of one of the conveying rollers 6. A partition 11 is fixedly connected between the front and back sides of the inner wall of the cooling box 1. Several filter holes 12 are opened on the partition 11. The cooling box 1 is equipped with a drive assembly, a limit assembly, a water supply and cooling assembly, and a drying assembly. Through the arrangement of the cooling box 1, scraper 5, conveyor belt 7, cleaning roller 8, hard brush bristles 9, transmission mechanism 10, water pump 19, and warm air blower 24, the sealing strip can be cooled and dried while being conveyed. During the continued conveying process after the sealing strip is dried, it is scraped and separated from the conveyor belt 7. At the same time, during the continued rotation of the conveyor belt 7 after use, the rotating cleaning roller 8, together with the hard brush bristles 9 and water, can brush and remove the residue adhering to the sealing strip, improve the integrity of the conveyor belt 7, and avoid the sealing strip residue from mixing with the sealing strips fed later, which would affect the overall quality of the sealing strip.
[0032] The drive assembly includes a motor 15, which is fixedly mounted on the front of one of the support plates 3. The output end of the motor 15 is fixedly connected to one end of one of the conveyor rollers 6. By starting the motor 15, the conveyor belt 7 can be driven to rotate to convey the sealing strip, and the cleaning roller 8 and hard bristles 9 can be driven to rotate to carry out the cleaning work, thereby improving energy utilization.
[0033] The limiting assembly includes four limiting rollers 16, which are rotatably connected to the front and back of the inner wall of the cooling box 1. The outer surfaces of the four limiting rollers 16 are in contact with the conveyor roller 6. By setting the limiting assembly, the conveyor belt 7 can be limited so that it can be tilted for use.
[0034] The water cooling assembly includes a water pump 19 fixedly connected to the front of the cooling tank 1. A heat conduction box 20 and a connecting box 21 are fixedly connected between the front and back of the inner wall of the cooling tank 1. The water suction end of the water pump 19 is fixedly connected to the cooling tank 1, and the water delivery end of the water pump 19 is fixedly connected to the heat conduction box 20 and the connecting box 21 respectively. A drain pipe 22 is fixedly connected to one side of the heat conduction box 20, and the other end of the drain pipe 22 is fixedly connected to the cooling tank 1. Several nozzles 23 are provided at the bottom of the connecting box 21. Through the arrangement of the water cooling assembly, water added into the cooling tank 1 can be delivered to the connecting box 21 and the heat conduction box 20 respectively. With the cooperation of the nozzles 23, the outer surface and bottom of the sealing strip are cooled.
[0035] The drying assembly includes a warm air blower 24 and an air box 25. The warm air blower 24 is fixedly installed on the top of the cooling box 1, and the air box 25 is fixedly connected inside the cooling box 1. The air outlet of the warm air blower 24 is fixedly connected to the air box 25. Several air blowers 26 are provided on the air box 25. Through the setting of the drying assembly, hot air can be blown on the cooled and conveyed sealing body to blow away or dry the residual moisture on its surface, preventing moisture from being conveyed to the outside of the cooling box 1 with the sealing strip and dripping randomly to contaminate the working environment.
[0036] Working principle: When in use, the solenoid valve 14 located at the top is energized to open it, and an appropriate amount of water is delivered into the cooling tank 1 through the corresponding connecting pipe 13. Then, the motor 15 is started, which drives one of the conveyor rollers 6 to rotate. With the cooperation of the other conveyor roller 6, the conveyor belt 7 is driven to rotate. At the same time, under the transmission mechanism 10, the cleaning roller 8 and several hard bristles 9 are driven to rotate synchronously. When the conveyor belt 7 rotates, the extruder is used to extrude the sealing strip from its discharge end and drop it onto the conveyor belt 7, which then drives it to carry out the conveying work.
[0037] When the conveyor belt 7 is used to transport the sealing strip, the water pump 19 and the heater 24 are started. After the water pump 19 starts, it draws water from the cooling tank 1 and transports it to the heat transfer tank 20 and the connecting tank 21. The water in the heat transfer tank 20 cools the heat transfer tank 20 and is then transferred to the conveyor belt 7, which moves and abuts against the top of the heat transfer tank 20, to cool it and reduce the temperature at the bottom of the sealing strip. After the water is transported into the connecting tank 21, it is sprayed out through the nozzle 23 to spray water onto the transported sealing strip. Cooling is achieved when the heater 24 is started, which heats the external air and delivers it into the air box 25. The blower head 26 blows air into the air box 25, so that the sealing strip is cooled by water spray and continues to be conveyed. When it moves up the inclined surface, it is affected by the hot air blown out, and the moisture on its surface is blown away or dried. When the sealing strip is dried and continues to be conveyed, it moves out of the cooling box 1 through the corresponding slot 2 and comes into contact with the inclined scraper 5. The scraper 5 scrapes and separates the sealing strip from the connection between the sealing strip and the conveyor belt 7.
[0038] After the conveyor belt 7 separates from the conveyor sealing strip, it continues to rotate and enters the added water. It comes into contact with the rotating hard bristles 9, and the hard bristles 9, together with the water, brush the conveyor belt 7 to remove the seal residue that adheres to it, thus improving the cleanliness of the conveyor belt 7. Meanwhile, the seal residue in the water is intercepted by the filter holes 12 of the partition 11 and is located on the side away from the water pump 19, preventing it from being sucked into the water pump 19 and transported to the connecting box 21 to block the nozzle 23.
[0039] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A thermoforming apparatus for automotive door frame sealing strips, comprising a cooling box (1), characterized in that: The cooling box (1) has slots (2) through both sides. Two support plates (3) are fixedly connected to one side of the cooling box (1). A fixing rod (4) is fixedly connected to the top of the two support plates (3). A scraper (5) is fixedly connected to one side of the fixing rod (4). Two conveying rollers (6) are provided on the cooling box (1). A conveyor belt (7) is driven between the outer surfaces of the two conveying rollers (6). A cleaning roller (8) is rotatably connected between the front and back sides of the inner wall of the cooling box (1). Several hard bristles (9) are fixedly connected to the outer surface of the cleaning roller (8). A transmission mechanism (10) is driven between one end of the cleaning roller (8) and the outer surface of one of the conveying rollers (6). A partition (11) is fixedly connected between the front and back sides of the inner wall of the cooling box (1). Several filter holes (12) are provided on the partition (11). A drive assembly, a limiting assembly, a water supply and cooling assembly, and a drying assembly are provided on the cooling box (1).
2. The thermoforming device for automotive door frame sealing strips according to claim 1, characterized in that: One of the conveying rollers (6) is rotatably connected between the front and back sides of the inner wall of the cooling box (1), and the other conveying roller (6) is rotatably connected between the opposite sides of the two support plates (3).
3. The thermoforming device for automotive door frame sealing strips according to claim 1, characterized in that: Two connecting pipes (13) are fixedly connected to one side of the cooling box (1), and a solenoid valve (14) is provided on each of the two connecting pipes (13).
4. The thermoforming device for automotive door frame sealing strips according to claim 1, characterized in that: The drive assembly includes a motor (15), which is fixedly mounted on the front of one of the support plates (3), and the output end of the motor (15) is fixedly connected to one end of one of the conveying rollers (6).
5. The thermoforming device for automotive door frame sealing strips according to claim 1, characterized in that: The limiting assembly includes four limiting rollers (16), which are rotatably connected to the front and back of the inner wall of the cooling box (1), and the outer surfaces of the four limiting rollers (16) are in contact with the conveying roller (6).
6. The thermoforming device for automotive door frame sealing strips according to claim 1, characterized in that: The front of the cooling box (1) is provided with a controller (17), and heat dissipation fins (18) are fixedly embedded on both the front and back of the cooling box (1).
7. The thermoforming device for automotive door frame sealing strips according to claim 1, characterized in that: The water cooling assembly includes a water pump (19) fixedly connected to the front of the cooling box (1). A heat conduction box (20) and a connecting box (21) are fixedly connected between the front and back of the inner wall of the cooling box (1). The water suction end of the water pump (19) is fixedly connected to the cooling box (1). The water delivery end of the water pump (19) is fixedly connected to the heat conduction box (20) and the connecting box (21) respectively. A drain pipe (22) is fixedly connected to one side of the heat conduction box (20). The other end of the drain pipe (22) is fixedly connected to the cooling box (1). Several nozzles (23) are provided at the bottom of the connecting box (21).
8. The thermoforming device for automotive door frame sealing strips according to claim 1, characterized in that: The drying assembly includes a heater (24) and a blower box (25). The heater (24) is fixedly installed on the top of the cooling box (1). The blower box (25) is fixedly connected inside the cooling box (1). The air supply end of the heater (24) is fixedly connected to the blower box (25). The blower box (25) is provided with several blower heads (26).