Novel tire base overlap edge self-melting sealing splicing equipment

By combining a temperature-controlled hot air gun and a pressing assembly, the self-melting seal of the tire base fabric overlap is achieved, solving the problems of low efficiency and failure caused by traditional manual gluing, and improving production efficiency and product quality.

CN224183773UActive Publication Date: 2026-05-01YUDUN WATERPROOF BUILDING MATERIALS GRP CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
YUDUN WATERPROOF BUILDING MATERIALS GRP CO LTD
Filing Date
2025-06-03
Publication Date
2026-05-01

AI Technical Summary

Technical Problem

Traditional fabric base layer overlaps require manual application of adhesive. The adhesive tape has poor weather resistance, resulting in a high failure rate, which affects production efficiency and the lifespan of the roll material's leak-proof properties.

Method used

A temperature-controlled hot air gun is used to uniformly heat the overlapping edges of the tire base, causing it to melt. Combined with the pressing and traction components, automated splicing is achieved, eliminating the need for manual glue application. The tire base is then rapidly cooled and shaped using water-cooled rollers, ensuring sealing and firmness.

Benefits of technology

It improves the efficiency and quality of tire base fabric overlap, reduces failures caused by delamination, increases production efficiency and product qualification rate, and ensures the weather resistance and sealing performance of the tire base fabric.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to novel tire base lap joint edge self-melting sealing splicing equipment, and belongs to the technical field of tire base machining, the novel tire base lap joint edge self-melting sealing splicing equipment comprises a vertical wall, a deck plate is horizontally fixed on one side of the vertical wall, a first unwinding roller and a second unwinding roller which are parallel to each other are rotatably arranged on the vertical wall, and the first unwinding roller and the second unwinding roller are distributed on the upper side and the lower side of the deck plate; a long-strip-shaped hole is formed in the deck plate, and a tire base on the second unwinding roller penetrates through the long-strip-shaped hole from the lower portion of the deck plate to the upper portion of the deck plate. A temperature control hot air gun is slidably arranged below the deck plate and slides in a reciprocating mode in the length direction of the second unwinding roller, and the temperature control hot air gun is located between the second unwinding roller and the long-strip-shaped hole. The vertical wall is provided with a pressing assembly used for tire base pressing, and the pressing assembly is located behind the long-strip-shaped hole in the tire base conveying direction. The vertical wall is provided with a traction assembly used for assisting the second unwinding roller in tire base unwinding. The tire base lap joint device has the effect of improving the tire base lap joint efficiency.
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Description

Technical Field

[0001] This application relates to the technical field of tire base processing, and in particular to a novel tire base overlap edge self-melting sealing splicing device. Background Technology

[0002] In the current production of waterproof building membranes, the continuous splicing of the base fabric is a key link to ensure the efficiency of the production line.

[0003] With the development of polymer-modified bitumen technology, self-adhesive waterproof membranes now account for over 40% of the market. However, this has led to increased demands on the sealing performance of the base fabric splicing equipment. The industry generally employs an intermittent production model, with a single production line handling 200-300 overlap operations per day. The splicing quality directly affects the membrane's leak-proof lifespan. In traditional processes, the base fabric overlaps require manual adhesive application, followed by mechanical pressing, and finally, butyl tape is applied to the outer layer of the base fabric for sealing.

[0004] In traditional processes, the overlap of the base fabric requires manual application of adhesive, and the adhesive tape has poor weather resistance and is prone to delamination in environments with large temperature differences, with a failure rate of up to 12%. After failure, it is necessary to re-overlap, resulting in overall low efficiency. Utility Model Content

[0005] To improve the efficiency of tire base overlap, this application provides a novel tire base overlap edge self-melting sealing splicing device.

[0006] The novel self-melting sealing and splicing device for tire base overlap edges provided in this application adopts the following technical solution:

[0007] A novel tire base overlap self-fusion sealing splicing device includes a vertical wall, a platform fixed horizontally on one side of the vertical wall, a first unwinding roller and a second unwinding roller rotatably mounted on the vertical wall, the first unwinding roller and the second unwinding roller being distributed on the upper and lower sides of the platform, and both of their rotation axes being horizontally set, the platform having an elongated hole for the tire base on the second unwinding roller to pass through from the bottom to the top of the platform, the elongated hole being opened along the length direction of the second unwinding roller; a temperature-controlled hot air gun is slidably mounted below the platform, sliding back and forth along the length direction of the second unwinding roller, the temperature-controlled hot air gun being located between the second unwinding roller and the elongated hole; a pressing assembly for pressing the tire base is provided on the vertical wall, along the tire base conveying direction, the pressing assembly being located behind the elongated hole; a traction assembly for assisting the second unwinding roller in unwinding the tire base is provided on the vertical wall.

[0008] By adopting the above technical solution, different tire bases are placed on the first and second unwinding rollers respectively. The tire base on the second unwinding roller is conveyed from below to above the table panel through the elongated hole, overlapping with the tire base on the first unwinding roller. A temperature-controlled hot air gun slides back and forth along the length of the second unwinding roller, which can uniformly heat the overlapping edge of the tire base conveyed by the second unwinding roller, so that the overlapping edge of the tire base reaches the self-melting temperature, which facilitates subsequent pressing and eliminates the step of manual glue application, improving production efficiency. At the same time, the self-melting seal of the tire base material itself has better weather resistance than traditional tape sealing, reducing the need for re-overlapping due to glue delamination. The pressing component is located behind the elongated hole. After the overlapping edge of the tire base self-melts, it can promptly press the overlapping area together, so that the two layers of tire base are tightly bonded, further ensuring the sealing and firmness of the splice. The traction assembly assists the second unwinding roller in unwinding the tire base. The traction plate is set at an angle to guide the tire base smoothly from the second unwinding roller to the elongated hole. The traction roller contacts the tire base and plays a supporting and guiding role during the tire base transportation process, ensuring stable transportation of the tire base and preventing problems such as deviation and wrinkles. This improves the accuracy and stability of the tire base overlap and helps to improve the overall production efficiency.

[0009] Optionally, the traction assembly includes a traction plate and a traction roller. The traction plate is inclined and fixed to the vertical wall and located below the platform. The traction plate is inclined upward from bottom to top along the direction away from the second unwinding roller. The traction roller is rotatably arranged above the traction plate. The rotation axis of the traction roller is parallel to the rotation axis of the second unwinding roller. The traction roller rotates relative to the traction plate.

[0010] By adopting the above technical solution, the inclined traction plate can effectively change the conveying direction of the tire base, allowing the tire base to smoothly transition from the second unwinding roller to the elongated hole. Its inclination angle is reasonably designed to reduce the resistance during the tire base conveying process. The traction roller rotates relative to the traction plate and generates rolling friction with the tire base surface during tire base conveying. Compared with sliding friction, this greatly reduces the damage to the tire base surface, while ensuring that the tire base can be stably conveyed along the predetermined path. This avoids downtime or readjustment due to poor tire base conveying, further improving the working efficiency of the equipment and the quality of tire base overlap.

[0011] Optionally, the vertical wall is provided with a crossbar, a rotating cylinder, a guide rod, and a drive motor. The drive motor is fixed to the vertical wall. The length direction of the rotating cylinder and the crossbar is both set along the length direction of the elongated hole. The rotating cylinder and the crossbar are set in parallel. A sliding groove is opened on the outer wall of the rotating cylinder. The sliding groove is wavy and is set to rotate relative to the vertical wall. One end of the guide rod is fixedly connected to the temperature-controlled hot air gun, and the other end is inserted into the sliding groove and slides along the length direction of the sliding groove. The temperature-controlled hot air gun is slidably set on the crossbar.

[0012] By adopting the above technical solution, the drive motor drives the rotating drum to rotate relative to the wall, and the wave-shaped groove on the outer wall of the drum rotates accordingly. Since one end of the guide rod is inserted into the groove, the guide rod, guided by the groove, drives the temperature-controlled hot air gun to reciprocate along the length of the second unwinding roller. This structural design allows the temperature-controlled hot air gun to heat the tire base overlap edge comprehensively and evenly, ensuring that all parts of the tire base overlap edge reach the appropriate self-melting temperature. Compared with the traditional fixed heating method, it improves the uniformity and effect of heating, thereby ensuring the quality of the self-melting seal of the tire base overlap edge and improving the efficiency and reliability of the tire base overlap.

[0013] Optionally, the pressing assembly includes an upper roller and a lower roller, both of which are rotatably mounted on the vertical wall. The rotation axes of the upper roller and the lower roller are parallel to each other, and the upper roller is simultaneously slidably mounted relative to the vertical wall in a direction that is closer to or farther from the lower roller.

[0014] By adopting the above technical solution, the upper and lower rollers are arranged in parallel. After the tire base overlap edge melts and is conveyed to the pressing assembly, the upper roller can slide relative to the wall along the direction closer to the lower roller, thereby applying pressure to the tire base overlap area located between the upper and lower rollers, making the two tire base layers fit tightly together. The rotation of the upper and lower rollers can drive the tire base forward, and the continuous processing of the tire base is not affected during pressing, ensuring the continuity of production. Compared with traditional mechanical pressing, this pressing method can more precisely control the pressing force and pressing time, ensuring the sealing and firmness of the tire base overlap, and improving the quality and efficiency of tire base overlap.

[0015] Optionally, a lower slide plate is fixed to the upright wall. The lower slide plate is located above the table panel and between the first unwinding roller and the elongated hole. The lower slide plate is inclined downward along the line connecting the first unwinding roller and the elongated hole.

[0016] By adopting the above technical solution, the lower slide plate is inclined downwards and positioned above the platform, between the first unwinding roller and the elongated hole. This guides the tire base released from the first unwinding roller, allowing it to be smoothly conveyed to the elongated hole and overlapped with the tire base conveyed by the second unwinding roller. The lower slide plate prevents the tire base from being suspended or sagging during conveying, ensuring the stability and accuracy of tire base conveying. This helps improve the efficiency and quality of tire base overlap and also reduces equipment failures or production interruptions caused by tire base conveying problems.

[0017] Optionally, a heating layer is fixed to the top surface of the lower sliding plate.

[0018] By adopting the above technical solution, the heating layer is fixed on the top surface of the lower slide plate. During the process of the tire base being conveyed from the first unwinding roller through the lower slide plate to the elongated hole, the heating layer can preheat the tire base. Preheating raises the temperature of the tire base to be closer to its self-melting temperature. When the tire base overlaps with the tire base conveyed by the second unwinding roller, under the action of the temperature-controlled hot air gun, it can reach the self-melting state more quickly, shortening the time required for the tire base to self-melt, improving the efficiency of tire base overlap, and also helping to improve the effect and quality of the self-melting seal at the tire base overlap edge.

[0019] Optionally, a water-cooled roller is rotatably mounted on the vertical wall. A water inlet pipe is connected to the center of one end of the water-cooled roller, and a water outlet pipe is connected to the center of the other end. Water channels are opened inside the water-cooled roller.

[0020] By adopting the above technical solution, the water-cooled roller is rotatably mounted on the vertical wall, with the inlet and outlet pipes connected to the center of both ends of the water-cooled roller, allowing the cooling water to circulate in the water channels inside the roller. After the tire base is pressed by the pressing assembly, it comes into contact with the water-cooled roller. The cooling water inside the roller can carry away the heat from the surface of the tire base, allowing it to cool and solidify quickly. This prevents the tire base from deforming or sticking due to excessive temperature after pressing, ensuring the shape and quality of the overlapped tire base. It also prepares the tire base for subsequent processing or winding processes, improving overall production efficiency and product quality.

[0021] Optionally, the waterway is spiral-shaped.

[0022] By adopting the above technical solution, the spiral water channel increases the flow path and contact area of ​​the cooling water inside the water-cooled roller, allowing the cooling water to more fully absorb heat from the tire base surface. Compared with other water channel forms such as straight channels, the cooling effect is better and more uniform. This ensures that the temperature of all parts of the tire base decreases quickly and uniformly after being cooled by the water-cooled roller, avoiding problems such as tire base deformation and warping caused by excessively high local temperatures. This further improves the quality and stability of the tire base after overlap, ensuring that the tire base products produced by the equipment meet quality requirements, and improving production efficiency and product qualification rate.

[0023] In summary, this application includes at least one of the following beneficial technical effects:

[0024] 1. The tire base overlap edge is uniformly heated by a temperature-controlled hot air gun to achieve self-melting, eliminating the need for manual glue application. All components work together to ensure continuous conveying and processing of the tire base, avoiding downtime and readjustment due to poor tire base conveying, uneven heating or improper pressing, thus greatly improving production efficiency.

[0025] 2. The unique heating and pressing method ensures the self-melting and sealing quality of the tire base overlap edge. The spiral water-cooled rollers make the tire base cool more evenly, preventing deformation, warping and adhesion, ensuring the shape and sealing of the tire base after overlap, and improving the product qualification rate.

[0026] 3. The traction components and lower slide plate play a guiding and supporting role for the tire base, reducing conveying resistance and damage, ensuring stable conveying of the tire base, and enabling the equipment to adapt to different working conditions. This reduces equipment failures caused by tire base conveying problems and improves the stability of equipment operation. Attached Figure Description

[0027] Figure 1 This is a structural schematic diagram of an embodiment of this application;

[0028] Figure 2 This is a partial structural diagram of the traction component;

[0029] Figure 3 This is a partial structural diagram of the temperature-controlled hot air gun;

[0030] Figure 4 Schematic diagram of the back of the wall.

[0031] In the diagram, 1. Vertical wall; 11. First unwinding roller; 12. Second unwinding roller; 13. Drive motor; 14. Guide rod; 15. Rotary drum; 16. Crossbar; 17. Lower slide plate; 2. Tabletop; 21. Long slot; 3. Temperature-controlled hot air gun; 4. Pressing assembly; 41. Upper roller; 42. Lower roller; 5. Traction assembly; 51. Traction plate; 52. Traction roller; 6. Heating layer; 7. Water-cooled roller; 71. Water inlet pipe; 72. Water outlet pipe. Detailed Implementation

[0032] The following is in conjunction with the appendix Figures 1-4 This application will be described in further detail.

[0033] This application discloses a novel self-melting sealing splicing device for tire base overlap edges.

[0034] refer to Figure 1 A novel self-fusion sealing splicing device for tire base overlap includes a vertical wall 1, which provides a stable support structure for the device. The vertical wall 1 is preferably made of high-strength steel to ensure the overall stability and durability of the device. A platform 2 is horizontally fixed to one side of the vertical wall 1. The platform 2 is bolted to the vertical wall 1, and its surface is flattened to ensure the stability of subsequent tire base processing.

[0035] refer to Figure 1 and Figure 2A first unwinding roller 11 and a second unwinding roller 12, parallel to each other, are rotatably mounted on the vertical wall 1. The first unwinding roller 11 and the second unwinding roller 12 are distributed on the upper and lower sides of the platform 2, and their rotation axes are both horizontally positioned. The first unwinding roller 11 and the second unwinding roller 12 are connected to the vertical wall 1 via bearings, enabling smooth rotation. In practical applications, the first unwinding roller 11 and the second unwinding roller 12 can each hold different sizes of tire bases. The platform 2 has an elongated hole 21 for the tire base on the second unwinding roller 12, extending from the bottom to the top of the platform 2. The elongated hole 21 is opened along the length of the second unwinding roller 12, and its width is greater than the width of the tire base, ensuring that the tire base can pass through smoothly.

[0036] refer to Figure 2 and Figure 3 A temperature-controlled hot air gun 3 is slidably mounted below the table panel 2, and slides back and forth along the length of the second unwinding roller 12. The temperature-controlled hot air gun 3 is located between the second unwinding roller 12 and the elongated hole 21. A crossbar 16, a rotating drum 15, a guide rod 14, and a drive motor 13 are provided on the vertical wall 1. The drive motor 13 is fixed to the vertical wall 1, and its output shaft is fixedly connected to one end of the rotating drum 15, which can drive the rotating drum 15 to rotate relative to the vertical wall 1. Both the rotating drum 15 and the crossbar 16 are positioned along the length of the elongated hole 21, and are parallel to each other. A wavy groove is formed on the outer wall of the rotating drum 15, extending around its entire length. One end of the guide rod 14 is fixedly connected to the temperature-controlled hot air gun 3, while the other end is inserted into the groove and slides along its length. The temperature-controlled hot air gun 3 is slidably mounted on the crossbar 16, which has a slide rail. The temperature-controlled hot air gun 3 slides through the cooperation of a slider and the slide rail. When the drive motor 13 rotates the rotating drum 15, the guide rod 14, guided by the groove, causes the temperature-controlled hot air gun 3 to reciprocate along the length of the second unwinding roller 12, thereby uniformly heating the overlapping edge of the tire base.

[0037] refer to Figure 1 and Figure 4A pressing assembly 4 for pressing the tire base is installed on the vertical wall 1. The pressing assembly 4 is located behind the elongated hole 21 along the tire base conveying direction. The pressing assembly 4 includes an upper roller 41 and a lower roller 42. Both the lower roller 41 and the lower roller 42 are rotatably mounted on the vertical wall 1 via bearings. The rotation axes of the upper roller 41 and the lower roller 42 are parallel to each other. The upper roller 41 is simultaneously slidably mounted relative to the vertical wall 1, with the sliding direction being towards or away from the lower roller 42. A cylinder is fixed on the vertical wall 1. The piston rod of the cylinder is fixedly connected to the bearing seat of the upper roller 41. The extension and retraction of the cylinder controls the lifting and lowering of the upper roller 41, thereby achieving the pressing of the tire base overlap. After the tire base overlap edge melts, it is conveyed to the pressing assembly 4. Under the action of the cylinder, the upper roller 41 approaches the lower roller 42 and applies pressure to the tire base overlap between the upper roller 41 and the lower roller 42, so that the two layers of tire base are tightly bonded. At the same time, the rotation of the upper roller 41 and the lower roller 42 can drive the tire base forward to ensure the continuity of production.

[0038] refer to Figure 1 and Figure 2 The wall 1 is also equipped with a traction assembly 5 to assist the second unwinding roller 12 in unwinding the tire base. The traction assembly 5 includes a traction plate 51 and a traction roller 52. The traction plate 51 is obliquely fixed to the wall 1 and located below the platform 2. The traction plate 51 is obliquely upward from bottom to top along the direction away from the second unwinding roller 12. The traction plate 51 is fixed to the wall 1 by welding. Its inclination angle has been optimized through experiments to effectively reduce the resistance during the tire base transportation process. The traction roller 52 is rotatably arranged above the traction plate 51. The rotation axis of the traction roller 52 is parallel to the rotation axis of the second unwinding roller 12. The traction roller 52 rotates relative to the traction plate 51. The traction roller 52 is connected to the traction plate 51 through bearings. During the tire base transportation, it generates rolling friction with the tire base surface to ensure that the tire base can be transported smoothly.

[0039] refer to Figure 2 A sliding plate 17 is fixed to the vertical wall 1. The sliding plate 17 is located above the platform 2 and between the first unwinding roller 11 and the elongated hole 21. The sliding plate 17 is inclined downward along the line connecting the first unwinding roller 11 and the elongated hole 21. The sliding plate 17 is fixed to the vertical wall 1 with bolts. Its surface is smooth and can play a good guiding role for the tire base released from the first unwinding roller 11. A heating layer 6 is fixed to the top surface of the sliding plate 17. The heating layer 6 is made of resistance heating wire. The heating temperature is adjusted by controlling the current of the resistance heating wire. During the process of the tire base being conveyed from the first unwinding roller 11 through the sliding plate 17 to the elongated hole 21, the heating layer 6 can preheat the tire base, making the tire base closer to its self-melting temperature.

[0040] refer to Figure 1 and Figure 4A water-cooled roller 7 is rotatably mounted on the vertical wall 1. One end of the water-cooled roller 7 is connected to a water inlet pipe 71, and the other end is connected to a water outlet pipe 72. The water-cooled roller 7 has a spiral water channel inside (the spiral shape is not shown in the diagram). The water-cooled roller 7 is connected to the vertical wall 1 via bearings. The water inlet pipe 71 and the water outlet pipe 72 are connected to an external cooling water circulation system via rotary joints. After the tire base is pressed by the pressing assembly 4, it comes into contact with the water-cooled roller 7. The cooling water circulates in the spiral water channel, effectively absorbing heat from the tire base surface and rapidly cooling and shaping it. In this application, the first unwinding roller 11, the second unwinding roller 12, the lower roller 42, and the water-cooled roller 7 are all driven by motors, which will not be described in detail here.

[0041] The implementation principle of a novel tire base overlap self-melting sealing splicing device according to an embodiment of this application is as follows: First, the tire bases to be spliced ​​are placed on the first unwinding roller 11 and the second unwinding roller 12 respectively. The tire bases on the first unwinding roller 11 are guided and conveyed by the lower slide plate 17 and preheated under the action of the heating layer 6 on the lower slide plate 17. The tire bases on the second unwinding roller 12 are conveyed to the top of the platform 2 through the elongated hole 21 with the assistance of the traction component 5. At this time, the drive motor 13 drives the rotating drum 15 to rotate, and guides the temperature-controlled hot air gun 3 through the guide rod 14 to uniformly heat the tire base overlap edge conveyed by the second unwinding roller 12, so that the tire base overlap edge reaches the self-melting temperature. Then, the self-melted tire base overlap edge is conveyed to the pressing component 4. The upper roller 41 descends under the action of the cylinder and cooperates with the lower roller 42 to press the tire base overlap, so that the two layers of tire base are tightly bonded. Finally, the pressed tire base comes into contact with the water-cooled roller 7 and is rapidly cooled and shaped under the action of the cooling water circulating inside the water-cooled roller 7, completing the self-melting and sealing splicing process of the tire base overlap edge. The whole process is highly automated, effectively improving the efficiency and quality of tire base overlap.

[0042] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A novel self-melting sealing splicing device for tire base overlap, comprising a vertical wall (1), wherein a platform (2) is horizontally fixed on one side of the vertical wall (1), characterized in that: The wall (1) is rotatably equipped with a first unwinding roller (11) and a second unwinding roller (12) that are parallel to each other. The first unwinding roller (11) and the second unwinding roller (12) are distributed on the upper and lower sides of the platform (2) and their rotation axes are both horizontally arranged. The platform (2) has an elongated hole (21) for the base of the second unwinding roller (12) that extends from the bottom to the top of the platform (2). The elongated hole (21) is opened along the length direction of the second unwinding roller (12). A temperature-controlled hot air gun (3) is slidably installed below the second unwinding roller (12) and slides back and forth along the length direction of the second unwinding roller (12). The temperature-controlled hot air gun (3) is located between the second unwinding roller (12) and the elongated hole (21). A pressing assembly (4) for pressing the tire base is installed on the vertical wall (1). The pressing assembly (4) is located behind the elongated hole (21) along the tire base conveying direction. A traction assembly (5) for assisting the second unwinding roller (12) in unwinding the tire base is installed on the vertical wall (1).

2. The novel tire base overlap self-melting sealing splicing equipment according to claim 1, characterized in that: The traction assembly (5) includes a traction plate (51) and a traction roller (52). The traction plate (51) is fixed at an angle on the vertical wall (1) and located below the platform (2). The traction plate (51) is inclined upward from bottom to top along the direction away from the second unwinding roller (12). The traction roller (52) is rotatably arranged above the traction plate (51). The rotation axis of the traction roller (52) is parallel to the rotation axis of the second unwinding roller (12). The traction roller (52) rotates relative to the traction plate (51).

3. The novel tire base overlap self-melting sealing splicing equipment according to claim 1, characterized in that: The wall (1) is provided with a crossbar (16), a rotating cylinder (15), a guide rod (14) and a drive motor (13). The drive motor (13) is fixed on the wall (1). The length direction of the rotating cylinder (15) and the crossbar (16) is both along the length direction of the elongated hole (21). The rotating cylinder (15) and the crossbar (16) are arranged in parallel. A sliding groove is opened on the outer wall of the rotating cylinder (15). The sliding groove is wavy and opens around the outer wall of the rotating cylinder (15). The rotating cylinder (15) is set to rotate relative to the wall (1). One end of the guide rod (14) is fixedly connected to the temperature-controlled hot air gun (3), and the other end is inserted into the sliding groove and slides along the length direction of the sliding groove. The temperature-controlled hot air gun (3) is slidably set on the crossbar (16).

4. The novel tire base overlap self-melting sealing splicing equipment according to claim 1, characterized in that: The pressing assembly (4) includes an upper roller (41) and a lower roller (42). Both the lower roller (42) and the upper roller (41) are rotatably mounted on the vertical wall (1). The rotation axes of the upper roller (41) and the lower roller (42) are parallel to each other. The upper roller (41) is simultaneously slidably mounted relative to the vertical wall (1) and the sliding direction is along the direction of approaching or moving away from the lower roller (42).

5. The novel self-melting sealing splicing equipment for tire base overlap edges according to claim 1, characterized in that: A sliding plate (17) is fixed on the vertical wall (1). The sliding plate (17) is located above the table panel (2) and between the first unwinding roller (11) and the elongated hole (21). The sliding plate (17) is inclined downward along the line connecting the first unwinding roller (11) and the elongated hole (21).

6. The novel tire base overlap self-melting sealing splicing equipment according to claim 5, characterized in that: A heating layer (6) is fixed on the top surface of the sliding plate (17).

7. The novel tire base overlap self-melting sealing splicing equipment according to claim 1, characterized in that: A water-cooled roller (7) is rotatably mounted on the vertical wall (1). A water inlet pipe (71) is connected to the center of one end of the water-cooled roller (7), and a water outlet pipe (72) is connected to the center of the other end. A water channel is opened inside the water-cooled roller (7).

8. A novel self-sealing splicing apparatus for the overlap joint of a tire base according to claim 7, characterized in that: The waterway is spiral-shaped.