Gluing and back-gluing device for rubber sealing strip

Abstract

The utility model discloses a gluing and gum applying device for a rubber sealing strip, and belongs to the technical field of sealing rubber strip production equipment. Comprising a vertical unwinding structure, a tensioning detection structure, a double-roller conveying structure, a buffer structure, a dust removal structure, a guide roller set, a gluing structure, a drying structure, an adhesive tape discharging structure and an adhesive applying structure, and the vertical unwinding structure, the tensioning detection structure, the dust removal structure, the double-roller conveying structure, the buffer structure, the guide roller set, the gluing structure, the drying structure and the adhesive applying structure are sequentially arranged; the tensioning detection structure is located over the vertical unwinding structure. The buffer structure is positioned below the rear part of the double-roller conveying structure and below the front part of the guide roller group, and is electrically connected with the double-roller conveying structure; the tensioning detection structure comprises a traction wheel, a lower fixing plate, an upper fixing plate, two sliding rods, a sliding plate, a floating locking mechanism, a sensor fixing plate and a photoelectric sensor. The photoelectric sensor is electrically connected with the vertical unwinding structure; when the rubber strip is tensioned, the sliding plate moves upwards, and the vertical unwinding structure acts.

Description

Technical Field

[0001] The utility model belongs to the technical field of sealant strip production equipment, and particularly relates to a rubber seal strip glue coating and backing glue device. Background Art

[0002] With the development of the vehicle industry, more and more vehicles can be seen on the streets. Automobiles have become an indispensable means of transportation for every family. Correspondingly, automobile parts paired with vehicles have become increasingly important. Among them, the seal strips used in various parts of the vehicle, such as the door and the hood, are the key to ensuring the sealing performance of the vehicle. Automobile seal strips are important accessories on automobiles. Automobile seal strips can fill the gaps between the components of the vehicle body and have functions such as shock absorption, waterproofing, dustproofing, sound insulation, and decoration. Excellent automobile seal strips can improve the comfort of the driving experience and protect the vehicle body.

[0003] Backing glue for rubber seal strips is to bond a layer of tape on the rubber seal strip. When installing, the protective layer of the tape is torn off, and then the rubber seal strip can be bonded to the installation position. Before backing glue for some automobile rubber seal strips, a layer of primer needs to be applied on the rubber seal strip first, and then the backing glue tape is bonded on the primer layer, so as to improve the bonding strength between the tape and the rubber seal strip.

[0004] For example, the patent with the application number CN201621366606.8 discloses a rubber seal strip backing glue machine, which includes a frame, a seal strip feeding roller, a double-sided tape feeding roller and a backing glue mechanism. The backing glue mechanism includes a plurality of freely rotating positioning rollers and a pressing device. The pressing device includes two pressing rollers and a pressing conveyor belt, and the pressing rollers are arranged above the pressing conveyor belt; the seal strip led out from the seal strip feeding roller and the double-sided tape led out from the double-sided tape feeding roller converge through a plurality of positioning rollers and then pass through between the two pressing rollers and the pressing conveyor belt. It includes a treatment agent coating mechanism, and the treatment agent coating mechanism is arranged between the seal strip feeding roller and the backing glue mechanism. It includes a hot air circulation drying tunnel, the hot air circulation drying tunnel includes a housing and a drying tunnel conveyor belt, the housing includes an inlet and an outlet, the drying tunnel conveyor belt is arranged between the inlet and the outlet of the housing, and the seal strip led out from the treatment agent coating mechanism passes through the housing of the hot air circulation drying tunnel and enters the backing glue mechanism.

[0005] For example, patent application number CN202323453259.5 discloses a rubber sealing strip base coat production line, including a frame, characterized in that: a guide roller group, a dust removal device, a second guide roller group, a coating device, a drying device, and a belt traction machine are arranged sequentially along a straight direction on the frame; the guide roller group and the second guide roller group have the same structure, both including a horizontal support roller shaft for supporting the rubber sealing strip and two vertical roller shafts for limiting the rubber sealing strip; the dust removal device includes a support mounted on the frame, a pneumatic motor mounted on the support, a bob wheel mounted on the starter motor shaft, and a support plate mounted below the bob wheel for supporting and limiting the rubber sealing strip; the coating device includes a horizontal positioning plate and a positioning block mounted at the end of the horizontal positioning plate, and the water... The flat positioning plate is provided with a lower positioning groove that mates with the lower side of the rubber sealing strip, and the positioning block is provided with an upper positioning groove that mates with the upper side of the rubber sealing strip; the glue application device also includes a bracket set next to the horizontal positioning plate, a bottom glue storage tube set vertically on the bracket, a glue delivery hose connected to the lower outlet of the bottom glue storage tube, and a rigid glue application tube connected to the outlet of the glue delivery hose. The front end of the rigid glue application tube is provided with a glue release head with micropores. The rigid glue application tube is arranged at an angle, and the bracket is provided with an adjuster for adjusting the position and tilt angle of the rigid glue application tube; the drying device includes a housing, a cover hinged to the housing, a rectangular groove set inside the housing for supporting the rubber sealing strip, and a heating tube set above the rectangular groove. Both ends of the housing are provided with through holes for the rubber sealing strip to pass through.

[0006] Existing rubber sealing strip adhesive application devices have at least two problems:

[0007] 1. The above structure is usually for rubber strips on the production line. After production, the rubber strips may also be collected in a ring shape on the vertical winding device (see the description in CN201921440442.2).

[0008] Second: The rubber strip itself is easily deformed. If it is stretched (without tension control) and then glue is applied, the glue application position may be different from the subsequent backing position. Utility Model Content

[0009] To address the aforementioned issues, a specific solution is developed for the rubber strip wound by a vertical winding device. This solution utilizes a tension detection structure and a buffer structure to control tension and prevent the rubber strip from becoming stretched. The technical solution is as follows:

[0010] This utility model provides a rubber sealing strip adhesive coating and backing device. The device includes a dust removal structure 3, a guide roller group 6, an adhesive coating structure, a drying structure, a rubber strip feeding structure, and a backing structure. The rubber strip feeding structure conveys the rubber strip to the backing structure. The guide roller group 6, adhesive coating structure, drying structure, and backing structure are arranged sequentially from front to back. The device also includes a vertical unwinding structure 1, a tension detection structure 2, a roller conveying structure 4, and a buffer structure 5. The vertical unwinding structure 1, tension detection structure 2, dust removal structure 3, roller conveying structure 4, buffer structure 5, and guide roller group 6 are arranged sequentially from front to back. In this configuration, the top of the vertical unwinding structure 1 is provided with an unwinding reel, and the rubber strip 7 is placed in a ring on the unwinding reel; the tension detection structure 2 is located directly above the vertical unwinding structure 1; the buffer structure 5 is located below and behind the roller conveyor structure 4 and below and in front of the guide roller group 6, and is electrically connected to the roller conveyor structure 4; the tension detection structure 2 includes a frame 21, a traction wheel 22, a lower fixed plate 23, an upper fixed plate 24, two parallel sliding rods 25, a sliding plate 26 slidably mounted on the two sliding rods 25, a floating locking mechanism 27 on the upper side of the sliding plate 26, and a transmission mechanism fixedly mounted on the upper part of the two sliding rods 25. The sensor mounting plate 28 and the photoelectric sensor 29 on the sensor mounting plate 28; the traction wheel 22 is mounted on the frame 21, arranged in the left-right direction, located directly above the vertical unwinding structure 1, above the upper mounting plate 24, and in front of the dust removal structure 3; the upper mounting plate 24 is fixed to the frame 21, and both the upper mounting plate 24 and the sensor mounting plate 28 are provided with through holes or notches for the rubber strip 7 to pass through; the slide rods 25 are arranged vertically, located on both sides of the rubber strip 7, and their upper ends are fixed to the lower side of the upper mounting plate 24; the lower mounting plate 23 is fixed to the lower side of the two slide rods 25. The slide plate 26 is vertically slidable on the slide rod 25 and has a first strip hole for the rubber strip 7 to pass through. The floating locking mechanism 27 is oscillating on the slide plate 26 and has a second strip hole that fits with the rubber strip 7. The first and second strip holes are both arranged in the left-right direction. The photoelectric sensor 29 is electrically connected to the vertical unwinding structure 1. When the rubber strip 7 is tightened, the rubber strip 7 drives the slide plate 26 to move upward. When the slide plate 26 moves to the high position, it triggers the photoelectric sensor 29, thereby driving the vertical unwinding structure 1 to move.

[0011] Specifically, in this embodiment of the present invention, the frame 21 is a plate-shaped structure arranged in the front-to-back direction; two sliding rods 25 are arranged side by side, located in front of and behind the rubber strip 7 respectively; the lower fixing plate 23 is arranged in the front-to-back direction, with its front and rear ends fixed to the lower ends of the two sliding rods 25 respectively; the sliding plate 26 is arranged in the front-to-back direction, with its front and rear ends sliding on the two sliding rods 25 respectively; the sensor fixing plate 28 is arranged in the front-to-back direction, with its front and rear ends fixed to the upper part of the two sliding rods 25 respectively; the photoelectric sensor 29 is located in front of or behind the sensor fixing plate 28; the floating locking mechanism 27 is located between the two sliding rods 25, and the first through hole is a circular hole coaxially arranged with the vertical unwinding structure 1; the lower side of the sliding plate 26 is provided with a circular groove, which is coaxially arranged with the first through hole and its diameter is smaller than the diameter of the first through hole; there is a gap between the first strip hole and the rubber strip 7.

[0012] In this embodiment of the present invention, the floating locking mechanism 27 includes a lower floating plate 71, an upper floating plate 72, two lower locking bolts 73 and two upper locking bolts 74. Both the lower floating plate 71 and the upper floating plate 72 are provided with a second strip-shaped hole that fits with the rubber strip 7. The lower locking bolts 73 and the upper locking bolts 74 are both vertically arranged. The lower floating plate 71 is located on the upper side of the slide plate 26 by the two lower locking bolts 73 and can swing back and forth. The upper floating plate 72 is located on the upper side of the lower floating plate 71 by the two upper locking bolts 74 and can swing left and right.

[0013] Specifically, in this embodiment of the present invention, the lower floating plate 71 includes a small circular plate and two fixing ears at its left and right ends, wherein the fixing ears are provided with lower through holes; the small circular plate is placed on the sliding plate 26, and a second strip-shaped hole is provided at its center; two lower locking bolts 73 are arranged side by side, passing through the two lower through holes respectively, with a gap between them and the lower through holes, and a gap between their top ends and the fixing ears; the upper floating plate 72 includes a large circular plate and a circular boss on its lower side; the circular boss is coaxially arranged with the large circular plate, placed on the small circular plate, located between the two lower locking bolts 73, and its bottom outer edge is rounded; the large circular plate is provided with two upper through holes at its left and right ends, and a second strip-shaped hole is provided at its center; the two lower locking bolts 73 are arranged side by side, passing through the two upper through holes respectively, with a gap between them and the upper through holes, and a gap between their top ends and the large circular plate.

[0014] In this embodiment of the present invention, the dust removal structure 3 is located directly behind the traction wheel 22 and is mounted on the frame 21, and the roller conveying structure 4 is located below and behind the dust removal structure 3 and is mounted on the frame 21.

[0015] The dust removal structure 3 in this embodiment includes a support roller 31, a brush roller 32, a support plate 33, a collection groove 34, and a drive motor. The support roller 31 and the brush roller 32 are both arranged on the frame 21 in the left-right direction. The support roller 31 is located directly behind the traction wheel 22, and its circumferential surface is coaxially provided with an annular groove, which is located on the lower side of the rubber strip 7. The brush roller 32 is located on the upper side of the support roller 31, and its bottom is located in the annular groove. It is connected to the drive motor and is located on the upper side of the rubber strip 7. The support plate 33 is arranged on the frame 21 in the front-back direction, and the collection groove 34 is placed on the support plate 33 and is located directly below the support roller 31.

[0016] In this embodiment of the invention, the buffer structure 5 includes a vertically arranged lifting frame 51 and a lifting roller 52 that can move vertically on the lifting frame 51. The lifting frame 51 is equipped with a position sensor for detecting the position of the lifting roller 52, and the position sensor is electrically connected to the roller conveying structure 4. The lifting roller 52 is arranged in the left-right direction. The rubber strip 7 passes over the lower side of the lifting roller 52. When the rubber strip 7 is tightened, it drives the lifting roller 52 to move upward. When the lifting roller 52 is in a high position, it triggers the position sensor, which in turn triggers the roller conveying structure 4 to work.

[0017] Specifically, in this embodiment of the present invention, the lifting frame 51 is a gantry frame arranged in the left and right direction, and its two vertical beams are provided with sliding grooves in the vertical direction; the left and right ends of the lifting roller 52 are respectively slidably arranged in the two sliding grooves; the position sensor is a vertically arranged grating or multiple photoelectric sensors arranged side by side.

[0018] In this embodiment of the present invention, the guide roller group 6 includes an arc-shaped guide unit and a tension guide unit. The arc-shaped guide unit has an arc-shaped structure and its upper end is connected to the front end of the tension guide unit. The arc-shaped guide unit includes N first guide rollers, and the tension guide unit includes M second guide rollers. The M second guide rollers are arranged side by side and are located in front of the adhesive coating structure. The N first guide rollers are arranged in an upward arc-shaped curve from front to back. The rubber strip 7 passes over the upper side of the first guide rollers and then passes around the M second guide rollers in an S-shape.

[0019] The beneficial effects of the technical solution provided by this utility model embodiment are as follows: This patent is specifically designed for rubber strips wound by a vertical winding device. At the same time, the tension is controlled by a tension detection structure (controlling the vertical unwinding structure) and a buffer structure (controlling the roller conveying structure) to prevent the rubber strip from being stretched, thereby ensuring the adhesive backing effect. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the rubber sealing strip adhesive backing device in an embodiment of this utility model;

[0021] Figure 2 yes Figure 1 A structural diagram showing the skateboard in a high position;

[0022] Figure 3 yes Figure 1 A schematic diagram of the structure when the lifting roller is in a high position;

[0023] Figure 4 This is a schematic diagram of the tension detection structure;

[0024] Figure 5 This is a schematic diagram of the floating locking mechanism;

[0025] Figure 6 This is a schematic diagram of the dust removal structure;

[0026] Figure 7 This is a structural schematic diagram of the lower fixing plate;

[0027] Figure 8 This is a bottom view of a skateboard.

[0028] In the diagram: 1 Vertical unwinding structure, 2 Tension detection structure, 3 Dust removal structure, 4 Roller conveying structure, 5 Buffer structure, 6 Guide roller group, 7 Rubber strip;

[0029] 21 Frame, 22 Traction wheel, 23 Lower fixed plate, 24 Upper fixed plate, 25 Slide bar, 26 Slide plate, 27 Floating locking mechanism, 28 Sensor fixing plate, 29 Photoelectric sensor;

[0030] 31 Support roller, 32 Brush roller, 33 Support plate, 34 Collection trough;

[0031] 51 Lifting frame, 52 Lifting roller;

[0032] 71 Lower floating plate, 72 Upper floating plate, 73 Lower locking bolt, 74 Upper locking bolt. Detailed Implementation

[0033] 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.

[0034] Example 1

[0035] See Figure 1-8Example 1 provides a rubber sealing strip adhesive coating and backing device. This device includes a vertical unwinding structure 1, a tension detection structure 2, a dust removal structure 3, a roller conveying structure 4, a buffer structure 5, a guide roller group 6, an adhesive coating structure, a drying structure, a rubber strip unloading structure, and a backing structure. The adhesive coating structure, drying structure, rubber strip unloading structure, and backing structure are consistent with existing technologies. The adhesive coating structure is used to coat the rubber strip 7 with adhesive on the upper side; the drying structure is used to heat the rubber strip 7 and the adhesive on it; the rubber strip unloading structure is used to convey the rubber strip to the backing structure; and the backing structure is used to roll-press the rubber strip and rubber strip 7 together. The vertical unwinding structure 1, tension detection structure 2, dust removal structure 3, roller conveying structure 4, buffer structure 5, guide roller group 6, adhesive coating structure, drying structure, and backing structure are arranged sequentially from front to back. The top of the vertical unwinding structure 1 (which is a conventional vertical winding device) is equipped with an unwinding reel, on which the rubber strip 7 is placed in a ring shape. The tension detection structure 2 is located directly above the vertical unwinding structure 1 and is used to detect the tension of the rubber strip 7. When tensioned, it drives the unwinding reel to rotate. The buffer structure 5 is located below and behind the roller conveyor structure 4 and below and in front of the guide roller group 6. It is electrically connected to the roller conveyor structure 4. The buffer structure 5 has two functions: first, to control the tension of the rubber strip 7; and second, to drive the roller conveyor structure 4 when the rubber strip 7 is tensioned.

[0036] The tension detection structure 2 includes a frame 21, a traction wheel 22, a lower fixed plate 23, an upper fixed plate 24, a sliding plate 26, a floating locking mechanism 27, a sensor fixing plate 28, a photoelectric sensor 29, and two sliding rods 25. The traction wheel 22 is mounted on the frame 21, arranged horizontally, directly above the vertical unwinding structure 1, above the upper fixed plate 24, and in front of the dust removal structure 3 (specifically, directly in front). The upper fixed plate 24 is fixed to the frame 21 and has through holes or notches (specifically rectangular notches) for the rubber strip 7 to pass through. The sensor fixing plate 28 is fixed to the upper part of the two sliding rods 25 and has through holes or notches (specifically rectangular holes) for the rubber strip 7 to pass through. The two sliding rods 25 are arranged side-by-side (front-to-back or side-by-side). The sliding rods 25 are vertically arranged, located on both sides of the rubber strip 7, with their upper ends fixed to the lower side of the upper fixed plate 24; they are smooth round rods. The lower fixing plate 23 is fixed to the lower end of the two sliding rods 25 and has a first through hole (specifically a round hole) in its middle for the rubber strip 7 to pass through. The sliding plate 26 is located between the lower fixing plate 23 and the sensor fixing plate 28. It is slidably mounted on the two sliding rods 25 and can slide vertically on the sliding rods 25. It has a first strip-shaped hole for the rubber strip 7 to pass through. The floating locking mechanism 27 is located on the upper side of the sliding plate 26 and can swing on the sliding plate 26. It has a second strip-shaped hole that fits with the rubber strip 7 with a clearance. Both the first and second strip-shaped holes are arranged in the left-right direction and both fit the shape of the rubber strip 7. The first strip-shaped hole is slightly larger than the second strip-shaped hole. The size of the first strip-shaped hole is to ensure that the rubber strip 7 can be well conveyed backward. The size of the second strip-shaped hole is to ensure that when the rubber strip 7 is tightened (at this time, the rubber strip 7 is in close contact with the floating locking mechanism 27, and the friction between the rubber strip 7 and the floating locking mechanism 27 is large), the rubber strip 7 can drive the floating locking mechanism 27 upward. The photoelectric sensor 29 is mounted on the sensor fixing plate 28 and is electrically connected to the vertical unwinding structure 1. When the slide plate 26 is in the high position, the photoelectric sensor 29 is located on the slide plate 26 and faces the slide plate 26.

[0037] When the rubber strip 7 is not taut, the slide plate 26 rests on the lower fixed plate 23 due to gravity. The angle between the rubber strip 7 and the vertical direction is small, and the friction between the rubber strip 7 and the floating locking mechanism 27 is low. When the rubber strip 7 is taut, the angle between the rubber strip 7 and the vertical direction is large, and the friction between the rubber strip 7 and the floating locking mechanism 27 is high. The rubber strip 7 drives the slide plate 26 to move upward. When the slide plate 26 moves to the high position (the slide plate 26 rests against the sensor fixed plate 28), it triggers the photoelectric sensor 29, which in turn drives the vertical unwinding structure 1 to move.

[0038] Among them, see Figure 5The floating locking mechanism 27 in this embodiment includes a lower floating plate 71, an upper floating plate 72, two lower locking bolts 73, and two upper locking bolts 74. Both the lower floating plate 71 and the upper floating plate 72 have a second strip-shaped hole that fits with the rubber strip 7 with a clearance. The lower locking bolts 73 and the upper locking bolts 74 are vertically oriented. The lower floating plate 71 is mounted on the upper side of the slide plate 26 via the two lower locking bolts 73 and can swing back and forth. The upper floating plate 72 is mounted on the upper side of the lower floating plate 71 via the two upper locking bolts 74 and can swing left and right. Specifically, the lower floating plate 71 includes a small circular plate and two fixing ears (arranged along the left and right directions) at its left and right ends. The fixing ears have a lower through hole (specifically a circular hole). The small circular plate is placed on the slide plate 26, and its center has a second strip-shaped hole. Two lower locking bolts 73 are arranged side-by-side, passing through two lower through holes respectively, with gaps between them and the holes. The top of each bolt (which cannot pass through the holes) has a gap with the fixing lug. The upper floating plate 72 includes a large circular plate and a circular boss on its lower side. Both the small and large circular plates are coaxially arranged with the vertical unwinding structure 1. The diameter of the small circular plate is smaller than that of the large circular plate, and the outer edge of the large circular plate is aligned with the outer edge of the fixing lug. The circular boss is coaxially arranged with the large circular plate, resting on the small circular plate between the two lower locking bolts 73, and its bottom outer edge is rounded. The large circular plate has two upper through holes (specifically circular holes) at its left and right ends, with a second strip-shaped hole at its center. The two lower locking bolts 73 are arranged side-by-side, passing through the two upper through holes respectively, with gaps between them and the holes. The top of each bolt (which cannot pass through the holes) has a gap with the large circular plate. The swing distance between the lower floating plate 71 and the upper floating plate 72 does not exceed 2mm.

[0039] Among them, see Figure 6 The dust removal structure 3 in this embodiment includes a support roller 31, a brush roller 32, a support plate 33, a collection trough 34, and a drive motor. Both the support roller 31 and the brush roller 32 are arranged in a left-right direction. The support roller 31 is located directly behind the traction wheel 22, and its circumferential surface has a coaxial annular groove (wider than the thickness of the brush roller 32), located below the rubber strip 7. The brush roller 32 is located above the support roller 31, its bottom is located in the annular groove, and it is connected to the drive motor, located above the rubber strip 7. The support plate 33 is arranged in a front-back direction and is specifically a rectangular plate. The collection trough 34 is placed on the support plate 33, located directly below the support roller 31, and is specifically a rectangular groove.

[0040] In this embodiment, the roller conveying structure 4 includes a pressure roller and a drive roller arranged side by side and located on the upper and lower sides of the rubber strip 7, respectively. Both the pressure roller and the drive roller are arranged in the left-right direction, and the motor driving the drive roller is electrically connected to the position sensor.

[0041] Among them, see Figure 1-3The buffer structure 5 in this embodiment includes a lifting frame 51 and a lifting roller 52. The lifting frame 51 is vertically positioned below the roller conveying structure 4 and the guide roller group 6. It is equipped with a position sensor for detecting the position of the lifting roller 52. Specifically, it is a gantry frame arranged in a left-right direction, with vertical grooves on both vertical beams. The lifting roller 52 is arranged in a left-right direction and can move vertically on the lifting frame 51. Its left and right ends (which may be fitted with sliding blocks) are slidably positioned in the two grooves. The position sensor is electrically connected to the roller conveying structure 4. Specifically, it is a vertically arranged grating or multiple (specifically 2-4) photoelectric sensors arranged side-by-side, located on the left or right vertical beam. A rubber strip 7 passes over the underside of the lifting roller 52. When the rubber strip 7 is tightened, the lifting roller 52 is in a low position. When the rubber strip 7 is tightened, it drives the lifting roller 52 to move upwards. When the lifting roller 52 is in a high position, it triggers the position sensor (specifically the photoelectric sensor on the top), which in turn triggers the roller conveyor structure 4 to work.

[0042] In this embodiment of the invention, the guide roller group 6 includes an arc-shaped guide unit and a tension guide unit. The arc-shaped guide unit has an arc-shaped structure, with its upper end connected to the front end of the tension guide unit and its lower end located above and behind the lifting roller 52. The arc-shaped guide unit includes N first guide rollers, and the tension guide unit includes M second guide rollers, where N and M are integers from 2 to 6. The M second guide rollers are arranged side by side and located directly in front of the adhesive coating structure; the N first guide rollers are arranged in an upward arc-shaped curve from front to back. The rubber strip 7 passes over the upper side of the first guide rollers and then passes around the M second guide rollers in an S-shape.

[0043] Example 2

[0044] See Figure 1-5 Example 2 provides a rubber sealing strip adhesive backing device, whose structure is basically the same as that of Example 1, except that: the frame 21 in this embodiment is a plate-shaped structure arranged in the front-to-back direction. Two slide rods 25 are arranged side by side, located in front of and behind the rubber strip 7, respectively. The lower fixing plate 23 is arranged in the front-to-back direction, and its front and rear ends are fixed to the lower ends of the two slide rods 25, respectively. The sliding plate 26 is arranged in the front-to-back direction, and its front and rear ends are slidably mounted on the two slide rods 25, respectively. The sensor fixing plate 28 is arranged in the front-to-back direction, and its front and rear ends are fixed to the upper part of the two slide rods 25, respectively. The photoelectric sensor 29 is located in front of or behind the sensor fixing plate 28 (specifically, on the left side of the rear). The floating locking mechanism 27 is located between the two slide rods 25.

[0045] Example 3

[0046] Embodiment 3 provides a rubber sealing strip gluing and back gluing device, whose structure is basically the same as that of Embodiment 1. The difference is that the first through hole in the embodiment of the present utility model is a round hole coaxially arranged with the vertical unwinding structure 1. A circular groove is provided on the lower side of the sliding plate 26, and sliding sleeves cooperating with the sliding rods 25 are provided at the left and right ends of the upper side thereof. The circular groove is coaxially arranged with the first through hole and its diameter is smaller than that of the first through hole. There is a gap (specifically 0.2 - 0.6 mm) between the first strip-shaped hole and the rubber strip 7.

[0047] Embodiment 4

[0048] Embodiment 4 provides a rubber sealing strip gluing and back gluing device, whose structure is basically the same as that of Embodiment 1. The difference is that the dust removal structure 3 in the embodiment of the present utility model is located directly behind the traction wheel 22 and is arranged on the frame 21, and the pair-roller conveying structure 4 is arranged below and behind the dust removal structure 3 and is arranged on the frame 21. Specifically, the tension detection structure 2, the dust removal structure 3 and the pair-roller conveying structure 4 are all arranged on the left or right side of the frame 21. The support rollers 31 and the brush rollers 32 are both arranged on the frame 21 along the left-right direction. The support plate 33 is arranged on the frame 21 along the front-back direction. The driving motor is fixed on the frame 21.

[0049] Embodiment 5

[0050] Embodiment 5 provides a rubber sealing strip gluing and back gluing device, whose structure is basically the same as that of Embodiment 1. The difference is that N is 3 and M is 5 in the embodiment of the present utility model.

[0051] Embodiment 6

[0052] Embodiment 6 provides a rubber sealing strip gluing and back gluing device, whose structure is basically the same as that of Embodiment 1. The difference is that a pair-roller conveying structure 4 and a buffer structure 5 can also be sequentially arranged from front to back between the drying structure and the back gluing structure to control the tension at the back gluing structure.

[0053] Herein, the "first" and "second" in this patent only serve for distinction and have no other special meanings.

[0054] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A rubber sealing strip adhesive coating and backing device, comprising a dust removal structure (3), a guide roller group (6), an adhesive coating structure, a drying structure, a rubber strip feeding structure, and a backing structure, wherein the rubber strip feeding structure is used to convey the rubber strip to the backing structure, and the guide roller group (6), the adhesive coating structure, the drying structure, and the backing structure are arranged sequentially from front to back; characterized in that, The device also includes a vertical unwinding structure (1), a tension detection structure (2), a roller conveying structure (4), and a buffer structure (5). The vertical unwinding structure (1), tension detection structure (2), dust removal structure (3), roller conveying structure (4), buffer structure (5), and guide roller group (6) are arranged sequentially from front to back. The top of the vertical unwinding structure (1) is provided with an unwinding disc, and a rubber strip (7) is placed in a ring on the unwinding disc. The tension detection structure (2) is located directly above the vertical unwinding structure (1). The buffer structure (5) is located below and behind the roller conveying structure (4) and below and in front of the guide roller group (6), and it is electrically connected to the roller conveying structure (4). The tension detection structure (2) includes a frame (21), a traction wheel (22), a lower fixed plate (23), an upper fixed plate (24), two parallel sliding rods (25), a sliding plate (26) slidably mounted on the two sliding rods (25), a floating locking mechanism (27) on the upper side of the sliding plate (26), a sensor fixing plate (28) fixedly mounted on the upper part of the two sliding rods (25), and a photoelectric sensor (29) on the sensor fixing plate (28); the traction wheel (22) is mounted on the frame (21), arranged in the left-right direction, located directly above the vertical unwinding structure (1), above the upper fixed plate (24), and in front of the dust removal structure (3); the upper fixed plate (24) is fixed on the frame (21), and the upper fixed plate (24) and The sensor fixing plate (28) is provided with through holes or notches for the rubber strip (7) to pass through; the slide rod (25) is vertically arranged and located on both sides of the rubber strip (7), with its upper end fixed to the lower side of the upper fixing plate (24); the lower fixing plate (23) is fixed to the lower end of the two slide rods (25) and is provided with a first through hole for the rubber strip (7) to pass through; the slide plate (26) can slide vertically on the slide rod (25) and is provided with a first strip hole for the rubber strip (7) to pass through; the floating locking mechanism (27) can swing on the slide plate (26) and is provided with a second strip hole that fits with the rubber strip (7) with a clearance; the first strip hole and the second strip hole are both arranged in the left and right direction; the photoelectric sensor (29) is electrically connected to the vertical unwinding structure (1); When the rubber strip (7) is tightened, the rubber strip (7) drives the slide plate (26) to move upward; when the slide plate (26) moves to the high position, it triggers the photoelectric sensor (29), which in turn drives the vertical unwinding structure (1) to move.

2. The rubber sealing strip adhesive applicator according to claim 1, characterized in that, The frame (21) is a plate-shaped structure arranged in the front-to-back direction; two slide rods (25) are arranged side by side in front of and behind the rubber strip (7); the lower fixing plate (23) is arranged in the front-to-back direction, and its front and rear ends are respectively fixed to the lower ends of the two slide rods (25); the slide plate (26) is arranged in the front-to-back direction, and its front and rear ends are respectively slidably mounted on the two slide rods (25); the sensor fixing plate (28) is arranged in the front-to-back direction, and its front and rear ends are respectively fixed to the upper part of the two slide rods (25); the photoelectric sensor (29) is located in front of or behind the sensor fixing plate (28); the floating locking mechanism (27) is located between the two slide rods (25), and the first through hole is a circular hole coaxially arranged with the vertical unwinding structure (1); the lower side of the slide plate (26) is provided with a circular groove, the circular groove is coaxially arranged with the first through hole and its diameter is smaller than the diameter of the first through hole; there is a gap between the first strip hole and the rubber strip (7).

3. The rubber sealing strip adhesive applicator according to claim 2, characterized in that, The floating locking mechanism (27) includes a lower floating plate (71), an upper floating plate (72), two lower locking bolts (73) and two upper locking bolts (74). The lower floating plate (71) and the upper floating plate (72) are each provided with a second strip hole that fits with the rubber strip (7). The lower locking bolts (73) and the upper locking bolts (74) are both vertically arranged. The lower floating plate (71) is located on the upper side of the slide plate (26) through the two lower locking bolts (73) and can swing back and forth. The upper floating plate (72) is located on the upper side of the lower floating plate (71) through the two upper locking bolts (74) and can swing left and right.

4. The rubber sealing strip adhesive applicator according to claim 3, characterized in that, The lower floating plate (71) includes a small circular plate and two fixing ears at its left and right ends. The fixing ears are provided with lower through holes. The small circular plate is placed on the sliding plate (26) and has a second strip hole at its center. Two lower locking bolts (73) are arranged side by side, passing through the two lower through holes respectively. There is a gap between them and the lower through holes, and there is a gap between the head at the top of them and the fixing ears. The upper floating plate (72) includes a large circular plate and a circular boss on its lower side; the circular boss is coaxially arranged with the large circular plate and is placed on the small circular plate. It is located between two lower locking bolts (73) and its bottom outer edge is rounded; the large circular plate has two upper through holes at its left and right ends and a second strip hole at its center; the two lower locking bolts (73) are arranged side by side and pass through the two upper through holes respectively. There is a gap between them and the upper through holes, and there is a gap between the head of their top and the large circular plate.

5. The rubber sealing strip adhesive applicator according to claim 1, characterized in that, The dust removal structure (3) is located directly behind the traction wheel (22) and is mounted on the frame (21). The roller conveying structure (4) is located below and behind the dust removal structure (3) and is mounted on the frame (21).

6. The rubber sealing strip adhesive applicator according to claim 5, characterized in that, The dust removal structure (3) includes a support roller (31), a brush roller (32), a support plate (33), a collection trough (34), and a drive motor. The support roller (31) and the brush roller (32) are both arranged on the frame (21) in the left-right direction. The support roller (31) is located directly behind the traction wheel (22), and a ring groove is coaxially provided on its circumference. It is located on the lower side of the rubber strip (7). The brush roller (32) is located on the upper side of the support roller (31), and its bottom is located in the ring groove. It is connected to the drive motor and is located on the upper side of the rubber strip (7). The support plate (33) is arranged on the frame (21) in the front-back direction. The collection trough (34) is placed on the support plate (33) and is located directly below the support roller (31).

7. The rubber sealing strip adhesive applicator according to claim 1, characterized in that, The buffer structure (5) includes a vertically arranged lifting frame (51) and a lifting roller (52) that can move vertically on the lifting frame (51). The lifting frame (51) is provided with a position sensor for detecting the position of the lifting roller (52). The position sensor is electrically connected to the roller conveying structure (4). The lifting roller (52) is arranged in the left-right direction. The rubber strip (7) passes around the lower side of the lifting roller (52). When the rubber strip (7) is tightened, it drives the lifting roller (52) to move upward. When the lifting roller (52) is in a high position, it triggers the position sensor, which in turn triggers the roller conveying structure (4) to work.

8. The rubber sealing strip adhesive applicator according to claim 7, characterized in that, The lifting frame (51) is a gantry frame arranged in the left and right directions, and its two vertical beams are provided with sliding grooves in the vertical direction; the left and right ends of the lifting roller (52) are respectively slidably arranged in the two sliding grooves; the position sensor is a vertically arranged grating or multiple photoelectric sensors arranged side by side.

9. The rubber sealing strip adhesive applicator according to claim 7, characterized in that, The guide roller group (6) includes an arc-shaped guide unit and a tension guide unit. The arc-shaped guide unit has an arc-shaped structure and its upper end is connected to the front end of the tension guide unit. The arc-shaped guiding unit includes N first guiding rollers, and the tension guiding unit includes M second guiding rollers; the M second guiding rollers are arranged side by side and located in front of the adhesive coating structure; the N first guiding rollers are arranged in an upward arc from front to back; the rubber strip (7) passes over the top of the first guiding rollers and then passes around the M second guiding rollers in an S-shape.

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