Automatic attaching device for thermosensitive gum of automobile rubber sealing strip

Abstract

The utility model discloses an automatic attaching device for thermosensitive gum of an automobile rubber sealing strip, and belongs to the technical field of sealing rubber strip production equipment. Comprising a rack, a sealing strip conveying structure, a heat-sensitive adhesive tape conveying structure, a hot air heating structure and an attaching pressing wheel, the hot air heating structure comprises an air heater and an arc-shaped air nozzle, the sealing strip conveying structure comprises an irradiation mechanism, a front traction wheel set, a supporting wheel, a double-roller pressing mechanism, a rear traction roller set and an output mechanism, and the supporting wheel is located under the attaching pressing wheel. The irradiation mechanism comprises two side plates and an irradiation lamp right above the two side plates; the output mechanism comprises a conveying belt and an output pressing wheel on the upper side of the conveying belt. The laminating pressing wheel is of a disc structure, and two guide plates are arranged in the adjacent front of the front side of the laminating pressing wheel; the two guide plates are located on the left side and the right side of the thermosensitive adhesive tape respectively and located on the left side and the right side of the outer edge of the attaching pressing wheel respectively, the rear sides of the guide plates are in an arc shape matched with the attaching pressing wheel, and the lower portions of the guide plates are located above the arc-shaped air nozzles. An annular groove is formed in the circumferential face of the supporting wheel.

Description

Technical Field

[0001] This utility model belongs to the technical field of sealing strip production equipment, and specifically relates to an automatic bonding device for heat-sensitive adhesive backing of automotive rubber sealing strips. Background Technology

[0002] Automotive weatherstripping is an important component of automobiles. It fills gaps between body components and provides functions such as shock absorption, waterproofing, dustproofing, sound insulation, and decoration. High-quality weatherstripping can improve driving comfort and protect the vehicle body. Automotive weatherstripping typically has an adhesive backing for easy attachment to automotive parts. Currently, most domestic OEMs use pressure-sensitive adhesive tape as the adhesive backing for automotive weatherstripping. The pressure-sensitive tape is hot-air bonded to the weatherstripping, and then delivered to the bonding rollers by the adhesive backing traction structure.

[0003] For example, patent application number CN201621476147.9 discloses an automatic thermal adhesive bonding machine for automotive rubber sealing strips, including a frame. A rubber strip positioning and conveying device is mounted on the frame. The rubber strip positioning and conveying device has a tracked circulating conveyor chain, on which a rubber strip guiding and positioning clamp is mounted. Above the rubber strip positioning and conveying device is an automatic thermal adhesive tape bonding pressure roller, which has a thermal adhesive tape bonding guiding and pressing groove. The automatic thermal adhesive tape bonding pressure roller has a cooling chamber connected to a cooling water circulation device. The automatic bonding roller for thermal tape is mounted on a bonding adjustment mechanism that can adjust the bonding position. The input side of the automatic bonding roller for thermal tape is connected to a thermal tape leveling and feeding mechanism. The thermal tape leveling and feeding mechanism is equipped with a feeding roller and a tension adjustment roller. The input side of the automatic bonding roller for thermal tape is also equipped with a hot air heating component that can heat the thermal tape and rubber strip. The hot air heating component is equipped with a hot air output device and a heating nozzle. The hot air heating component is mounted on a heating adjustment mechanism, which is equipped with a position adjustment platform and a rotary adjustment component that can adjust the tilt angle of the heating nozzle.

[0004] This patent requires a tracked circulating conveyor chain to transport the sealing strips, which is not only structurally complex and difficult to maintain, but also requires precise positioning. Furthermore, the tracked circulating conveyor chain is quite long, making it difficult to properly engage with the bonding rollers to tightly press the sealing strips and heat-sensitive tape, resulting in poor bonding performance. Utility Model Content

[0005] To address the aforementioned issues, this patent employs an irradiation mechanism to slightly soften the sealing strip, with a traction wheel pulling the sealing strip. The structure is simple and easy to maintain. The technical solution is as follows:

[0006] This utility model provides an automatic bonding device for heat-sensitive adhesive backing of automotive rubber sealing strips. The device includes a frame 3 and a sealing strip conveying structure, a heat-sensitive adhesive tape conveying structure 4, a hot air heating structure 5, and a bonding pressure roller 6. The hot air heating structure 5 includes a hot air blower 51 and an arc-shaped air nozzle 52 that cooperates with the lower front side of the bonding pressure roller 6. The sealing strip conveying structure conveys the sealing strip 1 backward to the lower side of the bonding pressure roller 6, and the heat-sensitive adhesive tape conveying structure 4 feeds the heat-sensitive adhesive tape 2 downward to the front side of the bonding pressure roller 6. The sealing strip conveying structure includes an irradiation mechanism 7, a front traction roller group 8, a support roller 9, a roller pressing mechanism 10, a rear traction roller group 11, and an output mechanism 12 arranged sequentially from front to back. The sealing strip 1 passes through the irradiation mechanism 7, the front traction roller group 8, the support roller 9, the roller pressing mechanism 10, the rear traction roller group 11, and the output mechanism 12 in sequence. The support roller 9 is located at the bonding pressure roller. The irradiation mechanism 7 includes two side plates 71 arranged side by side and an irradiation lamp 72 directly above them. The two side plates 71 are located on the left and right sides of the sealing strip 1 and are arranged in the front-back direction. The irradiation lamp 72 is located directly above the sealing strip 1. The output mechanism 12 includes a conveyor belt arranged in the front-back direction and an output pressure roller on its upper side. The bonding pressure roller 6 is a disc structure with two guide plates 13 on its front side. The two guide plates 13 are arranged side by side and are located on the left and right sides of the heat-sensitive tape 2 and on the left and right sides of the outer edge of the bonding pressure roller 6. The rear side of the guide plates 13 is an arc shape that cooperates with the bonding pressure roller 6, and the lower part is located above the arc-shaped air nozzle 52. The circumference of the support roller 9 is coaxially provided with an annular groove that cooperates with the bonding pressure roller 6. The sealing strip 1 is located in the annular groove and is located between the support roller 9 and the bonding pressure roller 6.

[0007] In this embodiment of the utility model, there are multiple irradiation lamps 72; multiple irradiation lamps 72 are arranged side by side, all arranged in the front-back direction, and are respectively mounted on multiple first cylinders; the first cylinders are vertically mounted on the frame 3; a feeding traction wheel 14 for pulling the sealing strip 1 is provided between the front ends of the two side plates 71.

[0008] Furthermore, in this embodiment of the present invention, the hot air blower 51 is arranged obliquely downward from front to back and is mounted on the adjusting seat 15. The arc-shaped nozzle 52 is curved upward from front to back relative to the hot air blower 51, and the distance between its upper and lower sides gradually decreases. The frame 3 is provided with a slide rail 16 obliquely downward from front to back. The adjusting seat 15 is slidably mounted on the slide rail 16. The frame 3 is provided with a second cylinder 17 for driving the adjusting seat 15 to slide along the slide rail 16, located above and in front of the adjusting seat 15.

[0009] Furthermore, in this embodiment of the present invention, the bonding pressure roller 6 is mounted on the swing arm 18; the swing arm 18 is arranged in the front-rear direction, its rear end is hinged to the frame 3, its front end is hinged to the rotating shaft of the bonding pressure roller 6, and a third cylinder 19 is provided on the upper front side; the third cylinder 19 is arranged vertically, it is hinged to the frame 3, and the lower end of its telescopic rod is hinged to the swing arm 18.

[0010] In this embodiment of the present invention, the front traction wheel assembly 8 includes a first passive wheel, a first active wheel, and a second passive wheel arranged sequentially from front to back. The roller pressing mechanism 10 includes a second active wheel and a third passive wheel above it. The first passive wheel is located above and behind the side plate 71. The sealing strip output by the irradiation mechanism 7 extends obliquely upward to the lower side of the first passive wheel, then to the upper side of the first active wheel and the lower side of the second passive wheel, then to the space between the support wheel 9 and the bonding pressure wheel 6, and finally output between the second active wheel and the third passive wheel. The first active wheel, the support wheel 9, and the second active wheel are flush and drive synchronously. The first active wheel is located below and in front of the arc-shaped nozzle 52, the second passive wheel is located directly below the arc-shaped nozzle 52, and the third passive wheel is located below and behind the bonding pressure wheel 6.

[0011] In this embodiment of the invention, the conveyor belt is flush with the top of the second drive wheel and its speed is matched with the speed of the second drive wheel. There are multiple output pressure rollers, which are arranged side by side and press against the upper side of the sealing strip 1.

[0012] Specifically, in this embodiment of the present invention, the feeding traction wheel 14, the first passive wheel, the first active wheel, the second passive wheel, the support wheel 9, the bonding pressure wheel 6, the second active wheel, the third passive wheel, and the output pressure wheel are all arranged in the left-right direction; the diameters of the support wheel 9, the first active wheel, and the second active wheel are equal, and the diameter of the bonding pressure wheel 6 is greater than the diameter of the support wheel 9; the diameters of the first passive wheel, the second passive wheel, and the third passive wheel are equal, and their diameters are smaller than the diameter of the support wheel 9, and they can all be adjusted up and down.

[0013] Specifically, in this embodiment of the present invention, the frame 1 includes an upright plate and a horizontal plate at its front. The upright plate is arranged vertically along the front-back direction. The upright plate is arranged horizontally along the front-back direction and is located on the lower left or right side of the upright plate. The irradiation mechanism 7, the first passive wheel, the second passive wheel and the third passive wheel are all located on the horizontal plate. The heat-sensitive tape conveying structure 4, the hot air heating structure 5, the bonding pressure roller 6, the first driving wheel, the support wheel 9, the second driving wheel, the rear traction roller group 11 and the output mechanism 12 are all located on the upright plate.

[0014] The beneficial effects of the technical solution provided by this utility model embodiment are as follows: This patent uses an irradiation mechanism to slightly soften the sealing strip. The sealing strip passes sequentially through the irradiation mechanism, the front traction wheel group, the support wheel, the roller pressing mechanism, the rear traction roller group, and the output mechanism. The bonding pressure roller presses the sealing strip against the support wheel to ensure a composite effect. The roller pressing mechanism further realizes the composite effect and transports the sealing strip. In other words, this patent uses traction wheels to pull the sealing strip, resulting in a simple structure and easy maintenance. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the automatic bonding device for the thermal adhesive backing of automotive rubber sealing strips in this embodiment of the present invention.

[0016] In the diagram: 1. Sealing strip, 2. Heat-sensitive tape, 3. Frame, 4. Heat-sensitive tape conveyor structure, 5. Hot air heating structure, 6. Lamination roller, 7. Irradiation mechanism, 8. Front traction roller group, 9. Support roller, 10. Double roller pressing mechanism, 11. Rear traction roller group, 12. Output mechanism, 13. Guide plate, 14. Feeding traction roller, 15. Adjusting seat, 16. Slide rail, 17. Second cylinder, 18. Swing arm, 19. Third cylinder;

[0017] 51 Hot air blower, 52 Arc-shaped air nozzle;

[0018] 71 Side panel, 72 Irradiant lamp. Detailed Implementation

[0019] To make the objectives, technical solutions and advantages of this utility model clearer, the utility model will be described in further detail below with reference to the accompanying drawings.

[0020] Example 1

[0021] See Figure 1 Example 1 provides an automatic bonding device for heat-sensitive adhesive backing of automotive rubber sealing strips. The device includes a frame 3 and a sealing strip conveying structure, a heat-sensitive adhesive tape conveying structure 4, a hot air heating structure 5, and bonding pressure rollers 6 on it.

[0022] The sealing strip conveying structure is used to convey the sealing strip 1 backward to the underside of the bonding pressure roller 6. It includes, from front to back, an irradiation mechanism 7, a front traction roller group 8, a support roller 9, a roller pressing mechanism 10, a rear traction roller group 11, and an output mechanism 12. The sealing strip 1 passes through the irradiation mechanism 7, the front traction roller group 8, the support roller 9, the roller pressing mechanism 10, the rear traction roller group 11, and the output mechanism 12 in sequence.

[0023] Among them, the heat-sensitive tape conveying structure 4 is used to feed the heat-sensitive tape 2 downward to the front side of the bonding pressure roller 6. It includes a heat-sensitive tape roll and multiple traction rollers, which is similar to the existing structure.

[0024] The hot air heating structure 5 includes a hot air blower 51 and an arc-shaped nozzle 52 at its lower end, which is used to soften the heat-sensitive adhesive tape 2. The hot air blower 51 is arranged diagonally downward from front to back; the arc-shaped nozzle 52 is curved upward from front to back relative to the hot air blower 51, and the distance between its upper and lower sides gradually decreases. It cooperates with the lower front side of the bonding pressure roller 6, and its lower end extends to the adjacent front side between the support roller 9 and the bonding pressure roller 6.

[0025] The bonding roller 6 is a large disc with two guide plates 13 on its front side. The two guide plates 13 are arranged side by side, located on the left and right sides of the heat-sensitive tape 2, respectively, on the left and right sides of the outer edge of the bonding roller 6. The rear side of the guide plates 13 is an arc shape that cooperates with the bonding roller 6, and the lower part is located above the arc-shaped nozzle 52. Specifically, it is an arc-shaped plate used to guide the heat-sensitive tape 2.

[0026] The irradiation mechanism 7 includes two side plates 71 arranged side-by-side, a feeding traction wheel 14, and multiple irradiation lamps 72. The two side plates 71 are located on the left and right sides of the sealing strip 1, respectively, and are arranged in the front-back direction. The multiple irradiation lamps 72 are arranged side-by-side, all in the front-back direction, and are located directly above the sealing strip 1, above the side plates 71. The feeding traction wheel 14 is located between the lower front ends of the two side plates 71 and is used to pull the sealing strip 1.

[0027] The front traction wheel group 8 and the rear traction roller group 11 are used to pull the sealing strip 1. Specifically, the front traction wheel group 8 includes a first passive wheel, a first active wheel, and a second passive wheel arranged sequentially from front to back. The first passive wheel is located above and behind the side plate 71. The sealing strip output by the irradiation mechanism 7 slopes upwards to the lower side of the first passive wheel, then to the upper side of the first active wheel, the lower side of the second passive wheel, and then to the space between the support wheel 9 and the bonding pressure wheel 6. The first active wheel is located below and in front of the arc-shaped air nozzle 52, and the second passive wheel is located directly below the arc-shaped air nozzle 52. Specifically, the rear traction roller group 11 is used to pull the sealing strip 1, and it includes multiple lower traction wheels arranged side by side. The lower traction wheels are located below the sealing strip 1.

[0028] Among them, the support roller 9 is located directly below the bonding pressure roller 6, and forms a roller structure with the bonding pressure roller 6. The support roller 9 has an annular groove (the width of which is greater than the thickness of the bonding pressure roller 6 and the width of the sealing strip 1) that is coaxially provided on its circumference to cooperate with the bonding pressure roller 6. Its speed is matched with the speed of the bonding pressure roller 6.

[0029] The roller pressing mechanism 10 includes a second driving wheel and a third driven wheel on its upper side. The sealing strip 1, which is output between the support wheel 9 and the bonding pressure roller 6, is inclined between the second driving wheel and the third driven wheel. The first driving wheel, the support wheel 9, and the second driving wheel are flush and driven synchronously. The third driven wheel is located below and behind the bonding pressure roller 6.

[0030] The output mechanism 12 includes a conveyor belt arranged in the front-to-back direction and multiple output pressure rollers on its upper side. The top of the conveyor belt is flush with the top of the second drive wheel and its speed matches the speed of the second drive wheel. The multiple output pressure rollers are arranged side by side in front and behind and they all press against the upper side of the sealing strip 1.

[0031] Specifically, in this embodiment of the invention, the feeding traction wheel 14, the first driven wheel, the first driving wheel, the second driven wheel, the support wheel 9, the bonding pressure wheel 6, the second driving wheel, the third driven wheel, the lower traction wheel, and the output pressure wheel are all arranged in a left-right direction. The support wheel 9, the first driving wheel, and the second driving wheel have the same diameter, and both the first driving wheel and the second driving wheel have coaxial annular grooves on their circumferential surfaces. The diameter of the bonding pressure wheel 6 is larger than the diameter of the support wheel 9. The first driven wheel, the second driven wheel, and the third driven wheel have the same diameter, which is smaller than the diameter of the support wheel 9, and all of them can be adjusted up and down (specifically, they are mounted on a horizontal plate).

[0032] Example 2

[0033] See Figure 1 Example 2 provides an automatic adhesive bonding device for automotive rubber sealing strips with heat-sensitive backing. Its structure is basically the same as that of Example 1, except that: in this embodiment, the hot air blower 51 is mounted on the adjusting seat 15, and a slide rail 16 is obliquely downwards from front to back on the frame 3. The adjusting seat 15 is slidably mounted on the slide rail 16. A second cylinder 17 for driving the adjusting seat 15 to slide along the slide rail 16 is located on the frame 3 and above and in front of the adjusting seat 15. The second cylinder 17 is located above the slide rail 16 and parallel to it. Further, the adjusting seat 15 is angularly adjustable; specifically, a fixing rod is provided on the adjusting seat 15 along the left-right direction, and the adjusting seat 15 is fixed to the fixing rod by a fixing sleeve.

[0034] Furthermore, in this embodiment of the present invention, the bonding pressure roller 6 is mounted on the swing arm 18. The swing arm 18 is arranged in the front-rear direction, with its rear end hinged to the frame 3, its front end hinged to the rotating shaft of the bonding pressure roller 6, and a third cylinder 19 is provided on its upper front side. The third cylinder 19 is arranged vertically and is hinged (through a left-right rotating shaft) to the frame 3, with the lower end of its telescopic rod hinged to the swing arm 18 (through a left-right rotating shaft).

[0035] During operation, both the second cylinder 17 and the third cylinder 19 extend.

[0036] The aforementioned structure allows the hot air blower 51 and the bonding roller 6 to move up and down to allow the sealing strip 1 to be set during initial use; when the hot air blower 51 moves up and down, it is required to avoid the guide plate 13. The bonding roller 6 presses the sealing strip 1 against the support roller 9.

[0037] Example 3

[0038] See Figure 1 Example 3 provides an automatic adhesive bonding device for automotive rubber sealing strips with heat-sensitive backing. Its structure is basically the same as that of Example 1, except that in this embodiment, multiple irradiation lamps 72 are respectively mounted on multiple first cylinders. The multiple first cylinders are driven synchronously or asynchronously. The first cylinders are vertically mounted on the frame 3, and the lower end of their telescopic rods is fixedly connected to the irradiation lamps 72. During operation, some or all of the first cylinders extend. This structure allows for the up-and-down movement of the irradiation lamps 72 to facilitate the initial application of the sealing strip 1.

[0039] Example 4

[0040] Example 4 provides an automatic adhesive bonding device for automotive rubber sealing strips with heat-sensitive backing. Its structure is basically the same as that of Example 1, except that the frame 1 in this example includes a vertical plate and a horizontal plate at its front. The vertical plate is vertically arranged along the front-back direction. The horizontal plate is located on the lower left or right side of the vertical plate. The irradiation mechanism 7, the first passive wheel, the second passive wheel, and the third passive wheel are all located on the horizontal plate. The heat-sensitive adhesive tape conveying structure 4, the hot air heating structure 5, the bonding pressure roller 6, the first driving wheel, the support wheel 9, the second driving wheel, the rear traction roller group 11, and the output mechanism 12 are all located on the vertical plate.

[0041] Example 5

[0042] See Figure 1 Example 5 provides an automatic adhesive bonding device for automotive rubber sealing strips with heat-sensitive backing. Its structure is basically the same as that of Example 1, except that the number of irradiation lamps 72 on the vehicle body 1 in this example is 2, and the number of output pressure rollers is 2.

[0043] Example 6

[0044] Example 6 provides an automatic adhesive bonding device for automotive rubber sealing strips with heat-sensitive backing. Its structure is basically the same as that of Example 1, except that the diameter of the bonding pressure roller 6 in this example is 10cm, the diameter of the support roller 9 is 2cm, and the diameter of the passive roller is 7mm.

[0045] In this patent example, the terms "first," "second," and "third" serve only to distinguish the patented patent and have no other special meaning.

[0046] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. 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. An automatic device for attaching heat-sensitive back glue of automobile rubber sealing strip, comprising a frame (3), a sealing strip conveying structure, a heat-sensitive adhesive tape conveying structure (4), a hot air heating structure (5) and an attaching pressure roller (6) on the frame (3), the hot air heating structure (5) comprising a hot air blower (51) and an arc-shaped air nozzle (52) matched with the lower front side of the attaching pressure roller (6), the sealing strip conveying structure conveying the sealing glue strip (1) to the lower side of the attaching pressure roller (6), and the heat-sensitive adhesive tape conveying structure (4) conveying the heat-sensitive adhesive tape (2) to the front side of the attaching pressure roller (6); characterized in that the sealing strip conveying structure comprises, from front to back, an irradiation mechanism (7), a front traction roller group (8), a support roller (9), a roller pressing mechanism (10), a rear traction roller group (11) and an output mechanism (12), the sealing glue strip (1) sequentially passing through the irradiation mechanism (7), the front traction roller group (8), the support roller (9), the roller pressing mechanism (10), the rear traction roller group (11) and the output mechanism (12), the support roller (9) being located directly below the attaching pressure roller (6) and forming a roller structure with the attaching pressure roller (6), the irradiation mechanism (7) comprising two side plates (71) arranged side by side and an irradiation lamp (72) located directly above the two side plates (71), the two side plates (71) being respectively located on the left and right sides of the sealing glue strip (1) and being arranged in the front-rear direction, and the irradiation lamp (72) being located directly above the sealing glue strip (1), and the output mechanism (12) comprising a conveying belt arranged in the front-rear direction and an output pressure roller on the upper side of the conveying belt. The attaching pressure roller (6) is in a disc structure, and two guide plates (13) are arranged on the front side of the attaching pressure roller (6) and adjacent to the front side, the two guide plates (13) being arranged side by side and respectively located on the left and right sides of the heat-sensitive adhesive tape (2), on the left and right sides of the outer edge of the attaching pressure roller (6), and behind the attaching pressure roller (6), the rear side of the two guide plates (13) being arc-shaped and matched with the attaching pressure roller (6), and the lower part of the two guide plates (13) being located adjacent to the upper part of the arc-shaped air nozzle (52), the support roller (9) being coaxially provided with a ring groove matched with the attaching pressure roller (6) on the circumferential surface of the support roller (9), and the sealing glue strip (1) being located in the ring groove and between the support roller (9) and the attaching pressure roller (6). The number of the irradiation lamps (72) is multiple, the multiple irradiation lamps (72) being arranged side by side from front to back and being arranged in the front-rear direction, and the multiple irradiation lamps (72) being respectively arranged on multiple first air cylinders, the first air cylinders being vertically arranged on the frame (3), and a feed traction roller (14) being arranged between the front ends of the two side plates (71) and used for traction of the sealing glue strip (1).

2. The apparatus for automatically attaching a hot-sensitive adhesive of a rubber seal strip of a vehicle according to claim 1, wherein The hot air blower (51) is arranged obliquely downward from front to back and on an adjusting seat (15), the arc-shaped air nozzle (52) being arc-shaped upward from front to back relative to the hot air blower (51) and gradually decreasing in distance between the upper and lower sides of the arc-shaped air nozzle (52), the frame (3) being obliquely downward provided with a slide rail (16) from front to back, the adjusting seat (15) being slidingly arranged on the slide rail (16), and the frame (3) being provided with a second air cylinder (17) for driving the adjusting seat (15) to slide along the slide rail (16) and located in front of and above the adjusting seat (15).

3. The apparatus for automatic application of heat-sensitive adhesive of automobile rubber sealing strip according to claim 1, characterized in that, ​ 4. The apparatus for automatic application of heat-sensitive adhesive of automobile rubber sealing strip according to claim 1, characterized in that, The fitting pressing wheel (6) is arranged on a swing arm (18); the swing arm (18) is arranged in front-to-back direction, the rear end thereof is hinged to the frame (3), the front end thereof is hinged to the rotating shaft of the fitting pressing wheel (6), and the front upper side thereof is provided with a third cylinder (19); the third cylinder (19) is arranged vertically, is hinged to the frame (3), and the lower end of the telescopic rod thereof is hinged to the swing arm (18).

5. The apparatus for automatic application of heat-sensitive adhesive of automobile rubber sealing strip according to claim 2, characterized in that, The front traction wheel group (8) comprises a first driven wheel, a first driving wheel and a second driven wheel arranged in front-to-back direction in sequence, the pair of roller pressing mechanisms (10) comprise a second driving wheel and a third driven wheel on the upper side of the second driving wheel, and the first driven wheel is located above the rear upper side of the side plate (71); the sealing rubber strip (1) output by the irradiation mechanism (7) is obliquely upward to the lower side of the first driven wheel, then to the upper side of the first driving wheel, the lower side of the second driven wheel, and then to the space between the supporting wheel (9) and the fitting pressing wheel (6), and finally is output between the second driving wheel and the third driven wheel; the first driving wheel, the supporting wheel (9) and the second driving wheel are flush and are synchronously driven. The first driving wheel is located below the front of the arc-shaped tuyere (52), the second driven wheel is located directly below the arc-shaped tuyere (52), and the third driven wheel is located below the rear of the fitting pressing wheel (6).

6. The apparatus for automatically attaching a hot-sensitive adhesive of a rubber seal strip of a vehicle according to claim 5, wherein The conveying belt is flush with the top of the second driving wheel and the speed thereof is matched with the speed of the second driving wheel, and the number of the output pressing wheels is plural, the plural output pressing wheels are arranged side by side in front-to-back direction and all press on the upper side of the sealing rubber strip (1).

7. The apparatus for automatically attaching a hot-sensitive adhesive of a rubber seal strip of a vehicle according to claim 5, wherein The feeding traction wheel (14), the first driven wheel, the first driving wheel, the second driven wheel, the supporting wheel (9), the fitting pressing wheel (6), the second driving wheel, the third driven wheel and the output pressing wheel are all arranged in left-to-right direction; the diameters of the supporting wheel (9), the first driving wheel and the second driving wheel are equal, the diameter of the fitting pressing wheel (6) is greater than the diameter of the supporting wheel (9); the diameters of the first driven wheel, the second driven wheel and the third driven wheel are equal, and the diameters thereof are smaller than the diameter of the supporting wheel (9), and all can be adjusted up and down.

8. The apparatus for automatically attaching a hot-sensitive adhesive of a rubber seal strip of a vehicle according to claim 6, wherein The frame (3) comprises a vertical plate and a horizontal plate on the front of the vertical plate, the vertical plate is arranged in front-to-back direction and vertically; the horizontal plate is arranged horizontally in front-to-back direction and is arranged on the lower left side or the lower right side of the vertical plate; the irradiation mechanism (7), the first driven wheel, the second driven wheel and the third driven wheel are all arranged on the horizontal plate, and the heat-sensitive adhesive tape conveying structure (4), the hot air heating structure (5), the fitting pressing wheel (6), the first driving wheel, the supporting wheel (9), the second driving wheel, the rear traction roller group (11) and the output mechanism (12) are all arranged on the vertical plate.

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