Edge band end hot bending forming device
Patent Information
- Application Number
- CN202522609814.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-09
- Publication Date
- 2026-11-03
- Estimated Expiration
- 2035-12-09
AI Technical Summary
现有包边条加工方式存在模具成本高或加工效率低的问题,尤其是在小批量生产和需要二次贴胶的情况下,导致经济效益不佳。
The heating element heats the end of the edge banding strip, the bending die is used for pre-bending, and the strip is cooled and shaped in the cooling element. This achieves hot bending of the edge banding strip end, avoiding secondary gluing, simplifying the process and reducing mold costs.
It improves processing efficiency, reduces manufacturing costs, and is suitable for both large-scale and small-batch production, meeting the production needs of different scales.
Smart Images

Figure CN224928497U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of automotive parts processing technology, specifically to a device for hot bending and forming the end of an edge banding strip. Background Technology
[0002] Car windshields are usually fitted with edge strips to absorb shocks and improve external protection.
[0003] The shape of existing edge trim strips typically adapts to the contour of the corresponding windshield. Since the corners of existing automotive windshields are usually curved, the edge trim strip also needs to incorporate curved structures to match. Currently, the industry standard for processing curved edge trim strips is injection molding. There are two types of injection molding: one is integral injection molding, where the entire edge trim strip is molded from a single mold. Because windshields are typically large, integrally molded edge trim strips require large molds. While this is convenient, it results in higher mold costs, leading to excessively high production costs and low economic efficiency for small-batch edge trim strip production. Another type involves dividing the binding strip into straight and curved sections. In this case, only the injection mold for the curved section needs to be made. During processing, the end of the straight section is inserted into the injection mold of the curved section, and the curved section is injection molded at the end of the straight section, thus achieving the splicing injection molding of the binding strip. Although this method reduces mold costs, since adhesive needs to be applied to the binding strip, and the raw material of the binding strip is already covered with adhesive tape during manufacturing, this splicing injection molding method requires a second application of adhesive to the newly injection molded curved section, increasing the labor burden, reducing processing efficiency, and adding more processing steps, which also increases manufacturing costs. The cost-effectiveness is low, and it is not conducive to large-scale processing of binding strips. Summary of the Invention
[0004] To address the aforementioned problems in the existing technology, this invention aims to provide a hot bending forming device for the end of a binding strip. The device includes a heating component, a cooling component, and a bending die. The end of a straight binding strip with adhesive tape is placed on the heating component for heating. After heating, it is placed into the bending die for pre-bending. After pre-bending, it is placed into the cooling component for cooling and shaping. This achieves bending forming of the end of the binding strip with adhesive tape, eliminating the need for subsequent adhesive application, reducing labor burden, improving processing efficiency, simplifying processing steps, lowering manufacturing costs, and meeting the needs of large-scale production. Furthermore, since the bending die is only used for the bending section, the die cost is lower, making it suitable for small-batch production as well.
[0005] The specific technical solution is as follows: A hot bending forming device for the end of a binding strip, used to bend the end of a binding strip raw material strip with adhesive tape, characterized by comprising: The heating assembly has a heating station where the end of the edge banding strip to be bent is placed into the heating station. A cooling component is located next to the heating component and has a cooling station. The bending die is selectively placed into the cooling station, and the bending die is provided with a bending groove, into which the end of the heated edge strip material is placed.
[0006] The above-mentioned edge banding strip end hot bending forming device includes a heating component comprising a heating table and a heater. The heater is installed on the heating table, and the part of the heating table located within the heating range of the heater is the heating station.
[0007] In the aforementioned edge banding strip end hot bending forming device, the heater is a heating lamp tube.
[0008] The aforementioned edge banding strip end hot bending forming device further includes a pressure block, which is disposed on a heating table and spaced apart from the heater.
[0009] The above-mentioned edge banding strip end hot bending forming device includes a cooling component comprising a cooling tank and a cooling medium. The cooling tank contains the cooling medium, and the area in the cooling tank containing the cooling medium is the cooling station.
[0010] In the aforementioned edge banding strip end hot bending forming device, the cooling tank is a box with an upper opening, and the cooling medium is cold water.
[0011] The aforementioned edge banding strip end hot bending forming device further includes a base frame, which is placed horizontally on the ground, and both the heating component and the cooling component are installed on the base frame.
[0012] The above-mentioned hot bending forming device for the end of a binding strip includes a bending mold comprising a bottom mold and a pressing mold. The top surface of the bottom mold is provided with an arc-shaped first contour groove, and the bottom surface of the pressing mold is provided with an arc-shaped second contour groove. The cross-sectional shapes of the first and second contour grooves are respectively consistent with the lower half and upper half of the cross-section of the binding strip to be processed. The pressing mold selectively presses onto the bottom mold, and when the pressing mold presses onto the bottom mold, the second contour groove and the first contour groove are aligned to form a bending groove.
[0013] The above-mentioned edge banding strip end hot bending forming device includes a first connecting part on one side of the bottom mold and a first connecting hole on the first connecting part, and a second connecting part on one side of the pressing mold and a second connecting hole on the second connecting part. During installation, the first connecting hole and the second connecting hole are arranged coaxially and a rotating shaft is inserted through them.
[0014] The above-mentioned edge banding strip end hot bending forming device includes a plurality of first connecting parts arranged at intervals, a plurality of second connecting parts arranged at intervals, and first connecting holes on the plurality of first connecting parts arranged coaxially, and second connecting holes on the plurality of second connecting parts arranged coaxially. When the first connecting parts and the second connecting parts are hinged, the plurality of first connecting parts and the plurality of second connecting parts are arranged alternately.
[0015] The positive effects of the above technical solution are: The aforementioned edge banding strip end hot bending forming device uses a heating component to heat and soften the end of the edge banding strip material strip with adhesive tape attached. The heated end of the strip is then placed into a bending mold with a bending groove. The bending mold pre-bends the end of the strip. Finally, the bending mold containing the strip is placed into a cooling component for cooling and shaping, thus achieving hot bending forming of the edge banding strip end. This eliminates the need for additional injection molding of the bent portion followed by a second application of adhesive tape, simplifying the process, reducing workload, improving processing efficiency, and lowering manufacturing costs. Furthermore, since only the curved section requires a mold, it can meet the processing needs of both large-scale and small-batch edge banding strip production. Attached Figure Description
[0016] Figure 1 This is a structural diagram of an embodiment of the hot bending forming device for the end of a binding strip according to the present invention; Figure 2 This is an overall structural diagram of the bending mold of the edge banding strip end hot bending forming device of this utility model; Figure 3 This is a structural diagram of the bottom mold of the bending mold of the hot bending forming device for the end of the edge banding strip according to this utility model; Figure 4 This is a structural diagram of the pressing die of the bending mold of the hot bending forming device for the end of the edge banding strip according to this utility model.
[0017] In the attached diagram: 1. Heating assembly; 11. Heating table; 12. Heater; 13. Press block; 2. Cooling assembly; 21. Cooling tank; 3. Bending mold; 31. Bottom mold; 32. Press mold; 33. Bending groove; 311. First contouring groove; 312. First connecting part; 313. First connecting hole; 321. Second contouring groove; 322. Second connecting part; 323. Second connecting hole; 4. Base frame. Detailed Implementation
[0018] To make the technical means, creative features, objectives, and effects of this utility model easier to understand, the following embodiments are provided in conjunction with the appendix. Figure 1 To be continued Figure 4The technical solution provided by this utility model is described in detail, but the following content is not intended to limit this utility model.
[0019] Figure 1 This is a structural diagram of an embodiment of a hot bending forming device for the end of a binding strip according to this utility model. Figure 1 As shown, the edge banding strip end hot bending forming device provided in this embodiment is used to bend the end of the edge banding strip raw material strip with tape. At this time, the edge banding strip end hot bending forming device provided in this embodiment includes: heating component 1, cooling component 2 and bending mold 3.
[0020] Specifically, heating component 1 has a heating station where the end of the edge banding strip to be bent is placed. The heating station heats the end of the edge banding strip to soften it, providing the conditions for subsequent physical bending. Cooling component 2 is located beside heating component 1 and has a cooling station for cooling, providing the conditions for subsequent cooling and shaping of the pre-bent edge banding strip. Additionally, bending die 3 is selectively placed in the cooling station. Bending die 3 has bending grooves 33 that regulate the bending shape of the edge banding strip end, ensuring the bending state meets design requirements. In use, the bending die 3 is first removed from the cooling station, and then the end of the heated edge banding strip is placed into the bending groove 33 to pre-bend the edge banding strip. The strip is then transferred to the cooling station, where the pre-bent end is cooled and shaped, resulting in the finished edge banding strip. Since the edge banding strip is straight and has adhesive tape attached, the tape can be bent simultaneously during the bending process. This eliminates the need for additional adhesive tape on the curved sections of the edge banding strip, reducing labor, simplifying the operation, improving processing efficiency, and lowering manufacturing costs. It is also suitable for large-scale or small-batch processing of edge banding strips.
[0021] More specifically, the heating assembly 1 includes a heating platform 11 and a heater 12. The heater 12 is installed on the heating platform 11, and the part of the heating platform 11 within the heating range of the heater 12 is the heating station. In use, the edge banding strip to be heated is placed on the heating platform 11, which serves as a support carrier for the edge banding strip to be heated, maintaining the stability of the edge banding strip during heating. The end of the edge banding strip to be heated is inserted into the heater 12, and the heater 12 heats the end of the edge banding strip to meet the heating requirements of the edge banding strip end. It is worth noting that the heating platform 11 can be a horizontally arranged platform, with a simple structure and convenient manufacturing.
[0022] More specifically, the heater 12 is preferably a heating lamp tube, which directly uses existing heating products on the market, making the manufacturing cost of the equipment lower. In addition, it is more convenient to use and has a simpler structure because it uses electric heating.
[0023] More specifically, a pressing block 13 is also provided on the heating table 11, and the pressing block 13 is arranged at intervals with the heater 12. This allows the pressing block 13 to press down the edge strip to be heated on the heating table 11 after the edge strip to be heated is placed on the heating table 11, thus avoiding the problem of the edge strip moving accidentally during the heating process and affecting the heating effect. The structural design is more reasonable.
[0024] More specifically, the cooling component 2 includes a cooling tank 21 and a cooling medium. The cooling tank 21 contains the cooling medium, and the area in the cooling tank 21 containing the cooling medium is the cooling station. In use, the bending mold 3, containing the heated edge strip material, is placed entirely into the cooling medium in the cooling tank 21. Through heat exchange with the cooling medium, the pre-bent end of the edge strip material in the bending mold 3 is rapidly cooled and shaped, meeting the processing requirements for hot bending of the edge strip end. It is worth noting that when placing the bending mold 3 containing the heated edge strip material into the cooling medium, the entire bending mold 3 can be submerged below the cooling medium for better cooling effect.
[0025] At this point, the cooling tank 21 is a box with an opening at the top, using cold water as the cooling medium. It has a simple structure, low operating costs, readily available materials, and produces no pollution, making it more environmentally friendly. Preferably, the cooling tank 21 has an inlet and an outlet at each end, which are connected to the inlet and outlet of a cooling tower, respectively. This enables the recycling of the cooling medium, ensuring that the temperature of the cooling medium remains within the set range, resulting in a more rational structural design.
[0026] More specifically, a base frame 4 is also provided and placed horizontally on the ground. The heating platform 11 of the heating component 1 and the cooling tank 21 of the cooling component 2 are both installed on the base frame 4. The base frame 4 raises the height of the heating component 1 and the cooling component 2, so that the operator can operate without bending over, making the operation easier.
[0027] Figure 2 This is an overall structural diagram of the bending mold of the edge banding strip end hot bending forming device of this utility model; Figure 3 This is a structural diagram of the bottom mold of the bending mold of the hot bending forming device for the end of the edge banding strip according to this utility model; Figure 4 This is a structural diagram of the pressing die of the bending mold in a hot bending forming device for the end of a binding strip according to this utility model. Figures 1 to 4As shown, the bending mold 3 includes a bottom mold 31 and a pressing mold 32. The top surface of the bottom mold 31 is provided with an arc-shaped first contour groove 311, and the bottom surface of the pressing mold 32 is provided with an arc-shaped second contour groove 321. The cross-sectional shapes of the first contour groove 311 and the second contour groove 321 are respectively consistent with the lower half and the upper half of the cross-section of the edge strip to be processed. The pressing mold 32 selectively presses on the bottom mold 31. When the pressing mold 32 presses on the bottom mold 31, the second contour groove 321 and the first contour groove 311 are aligned to form a bending groove 33. This allows the lower half and the upper half of the edge strip end to be inserted into the first contour groove 311 and the second contour groove 321 respectively when the end of the heated edge strip is placed in the bending mold 3, thus realizing the pre-bending operation of the end of the heated edge strip.
[0028] More specifically, a first connecting part 312 is provided on one side of the bottom mold 31, and a first connecting hole 313 is provided on the first connecting part 312. A second connecting part 322 is provided on one side of the pressing mold 32, and a second connecting hole 323 is provided on the second connecting part 322. During installation, the first connecting hole 313 and the second connecting hole 323 are arranged coaxially and a rotating shaft is inserted through them, so that the first connecting part 312 on the side of the bottom mold 31 and the second connecting part 322 on the side of the pressing mold 32 can be hinged together to form an almost hinged structure. The mold closing and opening operations with the bottom mold 31 are realized by flipping the pressing mold 32. The structure is simple and more convenient to use.
[0029] More specifically, the bottom mold 31 has several first connecting portions 312 arranged at intervals, and the pressing mold 32 has several second connecting portions 322 arranged at intervals. Furthermore, the first connecting holes 313 on the several first connecting portions 312 are arranged coaxially, and the second connecting holes 323 on the several second connecting portions 322 are arranged coaxially. When the first connecting portions 312 and the second connecting portions 322 are hinged, the several first connecting portions 312 and the several second connecting portions 322 are arranged alternately, so that a second connecting portion 322 is connected between two adjacent first connecting portions 312, and a first connecting portion 312 is connected between two adjacent second connecting portions 322, thereby ensuring the stability of the pressing mold 32 and the bottom mold 31 when they flip over after being hinged.
[0030] The edge banding strip end hot bending forming device provided in this embodiment includes a heating component 1, a cooling component 2, and a bending mold 3. The heating component 1, which is set to a heating station, heats the end of the edge banding strip with tape. The heated end of the edge banding strip is then placed into the bending groove 33 of the bending mold 3 for pre-bending. The bending mold 3 containing the edge banding strip is then transferred to the cooling station of the cooling component 2 for cooling and shaping, thus realizing the hot bending forming of the edge banding strip end. Compared with the existing method of forming arc segments by injection molding, there is no need to apply tape to the arc segment, resulting in fewer process steps, reducing the workload and improving work efficiency. In addition, the bending mold 3 only needs to be set for the arc segment, reducing manufacturing costs. It can meet the needs of large-scale processing of edge banding strips as well as small-batch processing needs.
[0031] The above are merely preferred embodiments of the present utility model and are not intended to limit the implementation methods and protection scope of the present utility model. Those skilled in the art should realize that any equivalent substitutions and obvious changes made based on the description and illustrations of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A device for hot bending forming the end of a binding strip, used to bend the end of a binding strip raw material strip with adhesive tape, characterized in that, include: A heating assembly having a heating station, wherein the end of the edge banding strip to be bent is placed into the heating station; A cooling assembly is disposed beside the heating assembly, and the cooling assembly has a cooling station; A bending die is selectively placed into the cooling station, and the bending die is provided with a bending groove, into which the end of the heated edge strip material is placed.
2. The edge-binding strip end hot bending forming device according to claim 1, characterized in that, The heating assembly includes a heating platform and a heater. The heater is installed on the heating platform, and the part of the heating platform located within the heating range of the heater is the heating station.
3. The edge banding strip end hot bending forming device according to claim 2, characterized in that, The heater is a heating lamp.
4. The edge banding strip end hot bending forming device according to claim 2, characterized in that, It also includes a pressure block, which is disposed on the heating platform and is arranged at a distance from the heater.
5. The edge banding strip end hot bending forming device according to claim 1, characterized in that, The cooling assembly includes a cooling tank and a cooling medium. The cooling tank contains the cooling medium, and the area in the cooling tank containing the cooling medium is the cooling station.
6. The edge banding strip end hot bending forming device according to claim 5, characterized in that, The cooling tank is a box with an opening at the top, and the cooling medium is cold water.
7. The edge banding strip end hot bending forming device according to claim 1, characterized in that, It also includes a base frame, which is placed horizontally on the ground, and the heating component and the cooling component are both mounted on the base frame.
8. The edge-binding strip end hot bending forming device according to claim 1, characterized in that, The bending die includes a bottom die and a pressing die. The top surface of the bottom die has an arc-shaped first contour groove, and the bottom surface of the pressing die has an arc-shaped second contour groove. The cross-sectional shapes of the first contour groove and the second contour groove are respectively consistent with the lower half and the upper half of the cross-section of the edge banding strip to be processed. The pressing die selectively presses onto the bottom die, and when the pressing die presses onto the bottom die, the second contour groove and the first contour groove are aligned to form the bending groove.
9. The edge-binding strip end hot bending forming device according to claim 8, characterized in that, The bottom mold has a first connecting part on one side and a first connecting hole on the first connecting part. The pressing mold has a second connecting part on one side and a second connecting hole on the second connecting part. During installation, the first connecting hole and the second connecting hole are arranged coaxially and a rotating shaft is inserted through them.
10. The edge banding strip end hot bending forming device according to claim 9, characterized in that, The first connecting part is provided in a plurality of spaced-apart arrangements, the second connecting part is provided in a plurality of spaced-apart arrangements, and the first connecting holes on the plurality of first connecting parts are arranged coaxially, the second connecting holes on the plurality of second connecting parts are arranged coaxially, and when the first connecting part and the second connecting part are hinged, the plurality of first connecting parts and the plurality of second connecting parts are arranged alternately.
