Industrial belt welding device
By designing a hydraulic drive and heating components, and utilizing a combination of a heating copper plate and a heat spreader, the problem of uneven heating in belt welding was solved, resulting in better welding quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- FOSHAN PENGWANG IND BELT CO LTD
- Filing Date
- 2025-06-30
- Publication Date
- 2026-06-23
Smart Images

Figure CN224391954U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of industrial belt processing equipment, and in particular to an industrial belt welding device. Background Technology
[0002] Welding of industrial belts is a common process in belt production, typically involving joining the ends of the belt together to form a finished product. The general method involves placing the industrial belt into a special mold on a worktable and heating the mold to a certain temperature, melting the belt inside. After cooling, the belt ends are welded together. However, typical heating devices use a heat source, which can lead to localized overheating, resulting in uneven heating of the belt within the mold and affecting the yield rate. Utility Model Content
[0003] In order to overcome the shortcomings of the existing technology, this utility model provides an industrial belt welding device.
[0004] This utility model is achieved by the following technical solution: an industrial belt welding device, including an upper worktable and a lower worktable, wherein the lower worktable is provided with a receiving groove for placing a mold, and the upper worktable is provided with a heating component for heating the mold;
[0005] The upper worktable is moved to the lower worktable by a hydraulic drive device. The hydraulic drive device drives the upper worktable to abut against or move away from the mold. The heating component is located on the end face of the upper worktable facing the lower worktable.
[0006] The heating assembly includes a heating section and a temperature equalization section. The heating section is fixed to the end face of the upper worktable by bolts. The temperature equalization section is disposed on the heating section. When the upper worktable abuts against the mold, the temperature equalization section abuts against the end face of the mold.
[0007] An installation groove is provided on the end face of the heating part, the temperature equalization part is inserted into and engaged in the installation groove, and a limiting strip is provided on both sides of the installation groove. A limiting groove that cooperates with the limiting strip is provided on both sides of the temperature equalization part. When the temperature equalization part is inserted into the installation groove, the limiting strip is correspondingly inserted into the limiting groove.
[0008] The heating section includes a heating copper plate, which is fixed to the upper worktable by bolts, and the temperature equalization section is detachably fixed to the heating copper plate.
[0009] The temperature equalization section includes a temperature equalization plate, which is hollow to form a temperature equalization cavity. The temperature equalization cavity is divided by partitions to form several interconnected channels. Liquid is poured into the channels. When the temperature equalization plate is heated, the liquid is heated and flows along the channels.
[0010] Compared to existing technologies, this invention uses electric heating for the copper plate. When the copper plate is heated, the heat is first conducted to the heat spreader. As the surface of the heat spreader is heated, the liquid inside its heat spreader chamber expands, causing the liquid to flow along the channels, thus achieving rapid heat conduction and temperature uniformity throughout the heat spreader. The heat spreader then contacts the mold, resulting in more uniform heating of the entire contact surface of the mold, and consequently, more uniform heating of the industrial conveyor belt inside the mold, leading to better quality conveyor belt welding. Attached Figure Description
[0011] Figure 1 This is a schematic cross-sectional view of the internal structure of the industrial belt welding device in this utility model;
[0012] Figure 2 yes Figure 1 Enlarged structural diagram at point A in the middle;
[0013] In the diagram: 1. Upper worktable; 2. Lower worktable; 21. Receiving groove; 3. Hydraulic drive device; 4. Heating component; 41. Heating section; 411. Mounting groove; 412. Limiting strip; 413. Heating copper plate; 414. Heating chamber; 415. Oil hole; 42. Temperature equalization section; 421. Limiting groove; 422. Temperature equalization plate; 423. Temperature equalization chamber; 424. Partition. Detailed Implementation
[0014] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.
[0015] Reference Figure 1-2An industrial belt welding device includes an upper worktable 1 and a lower worktable 2. The lower worktable 2 has a receiving groove 21 for placing a mold, and the upper worktable 1 has a heating component 4 for heating the mold. The upper worktable 1 is moved downward to the lower worktable 2 by a hydraulic drive device 3, which drives the upper worktable 1 to abut against or move away from the mold. The heating component 4 is located on the end face of the upper worktable 1 facing the lower worktable 2. In use, the end of the belt to be welded is placed in the mold, and the upper template of the mold is used for pressing. Throughout the welding process, the heating component 4 remains in contact with the mold surface to heat the mold. The heating component 4 in this application includes a heating part 41 and a temperature equalization part 42. The heating part 41 is fixed to the end face of the upper worktable 1 by bolts, and the temperature equalization part 42 is located on the heating part 41. When the upper worktable 1 abuts against the mold, the temperature equalization part 42 abuts against the end face of the mold. The temperature equalization part 42 achieves rapid temperature equalization, thereby achieving uniform heating of the mold and resulting in better belt welding.
[0016] In this embodiment, the heating part 41 has a mounting groove 411 on its end face. The temperature equalization part 42 is inserted into and engaged in the mounting groove 411. Limiting strips 412 are provided on both sides of the mounting groove 411. Limiting grooves 421 that cooperate with the limiting strips 412 are provided on both sides of the temperature equalization part 42. When the temperature equalization part 42 is inserted into the mounting groove 411, the limiting strips 412 are correspondingly inserted into the limiting grooves 421. The heating part 41 includes a heating copper plate 413, which is fixed to the upper worktable 1 by bolts. The temperature equalization part 42 is detachably fixed to the heating copper plate 413. The heating copper plate 413 can be heated electrically or directly by liquid heating. Specifically, the heating copper plate is hollow to form a heating cavity 414. A pair of oil holes 415 are provided on the side wall of the copper plate to allow the hot oil in the heating cavity 414 to circulate. Therefore, heating the surface of the copper plate with oil can keep the surface temperature of the copper plate as uniform as possible. The heated copper plate surface is then uniformly heated by a heat spreader 422, ensuring a consistent surface temperature. This more uniform temperature spreader 422 is then used to heat the mold, resulting in more even heating of the belt within the mold and improved welding quality.
[0017] The temperature equalization section 42 in this application includes a temperature equalization plate 422, which is hollow to form a temperature equalization cavity 423. The temperature equalization cavity 423 is divided into several interconnected channels by partitions 424. Liquid is poured into the channels. When the temperature equalization plate 422 is heated, the liquid is heated and flows along the channels. The temperature equalization plate 422 can be made entirely of aluminum plate, and its temperature equalization cavity 423 is closed for pouring liquid but cannot be filled completely. When the surface of the temperature equalization plate 422 is heated, the liquid expands due to heat and flows in the channels, thereby achieving temperature equalization of the entire plate. The heated surface of the copper plate is also evenly heated by the temperature equalization plate 422, making the surface temperature of the temperature equalization plate 422 uniform. At this time, the mold is heated by the more uniform temperature equalization section 42, and the belt inside the mold is heated more evenly, resulting in good welding quality.
[0018] Compared to existing technologies, the heating copper plate 413 in this invention employs electric heating. When the heating copper plate 413 is heated, the heat is first conducted to the heat spreader 422. When the surface of the heat spreader 422 is heated, the liquid in its heat spreader cavity 423 is heated and expands, causing the liquid to flow along the channel, thereby achieving rapid heat conduction and temperature uniformity throughout the heat spreader 422. The heat spreader 422 then contacts the mold, resulting in more uniform heating of the entire contact surface of the mold, thus ensuring more uniform heating of the industrial belt inside the mold and improving the quality of belt welding.
[0019] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.
Claims
1. An industrial belt welding device, comprising an upper worktable and a lower worktable, characterized in that: The lower worktable is provided with a receiving slot for placing the mold, and the upper worktable is provided with a heating component for heating the mold; The upper worktable is moved to the lower worktable by a hydraulic drive device. The hydraulic drive device drives the upper worktable to abut against or move away from the mold. The heating component is located on the end face of the upper worktable facing the lower worktable.
2. The industrial belt welding device according to claim 1, characterized in that: The heating assembly includes a heating section and a temperature equalization section. The heating section is fixed to the end face of the upper worktable by bolts. The temperature equalization section is disposed on the heating section. When the upper worktable abuts against the mold, the temperature equalization section abuts against the end face of the mold.
3. The industrial belt welding device according to claim 2, characterized in that: An installation groove is provided on the end face of the heating part, the temperature equalization part is inserted into and engaged in the installation groove, and a limiting strip is provided on both sides of the installation groove. A limiting groove that cooperates with the limiting strip is provided on both sides of the temperature equalization part. When the temperature equalization part is inserted into the installation groove, the limiting strip is correspondingly inserted into the limiting groove.
4. An industrial belt welding device according to claim 2 or 3, characterized in that: The heating section includes a heating copper plate, which is fixed to the upper worktable by bolts, and the temperature equalization section is detachably fixed to the heating copper plate.
5. An industrial belt welding device according to claim 4, characterized in that: The temperature equalization section includes a temperature equalization plate, which is hollow to form a temperature equalization cavity. The temperature equalization cavity is divided by partitions to form several interconnected channels. Liquid is poured into the channels. When the temperature equalization plate is heated, the liquid is heated and flows along the channels.