A handrail belt production structure layer coating and winding mechanism

Abstract

This utility model discloses a film-coating and winding mechanism for the structural layer of a handrail belt production line. It includes a frame and a winding roller for winding the structural layer and an unwinding roller for unwinding the protective film, both mounted on the frame. The protective film is wound around the surface of the structural layer on the winding roller. A fixed shaft is fixed to the frame, and two support arms are movably hinged to the fixed shaft. A tension spring is installed between the two support arms. A movable frame is movably hinged to the opposite ends of each support arm, and a pressure roller is rotatably connected to the movable frame. In this utility model, the pressure roller is pressed down by the support arms and the movable frame. When the winding roller decelerates or pauses, and the unwinding roller needs to decelerate or pause as well, the pressure roller corresponding to the unwinding roller provides frictional resistance, allowing the unwinding roller to stop in time and stop unwinding the protective film. This avoids over-unwinding of the protective film and prevents the protective film from becoming loose, wrinkled, or misaligned on the structural layer wound around the winding roller.

Description

Technical Field

[0001] This utility model relates to the field of coating equipment technology, specifically a handrail belt production structural layer coating and winding mechanism. Background Technology

[0002] The handrail strips are initially bonded together using adhesives. Therefore, the semi-finished rubber strips need to be coated with adhesive on one side and simultaneously covered with a protective film before being rolled up. This process is accomplished by a film-coating and winding mechanism. The film-coating and winding mechanism includes a frame and winding rollers mounted on the frame for winding up the structural layers and unwinding the protective film. During the conveying process, the structural layers are coated with adhesive by the adhesive rollers, and during winding, they are covered with a protective film before being rolled up to prevent the inner and outer layers of the structural layers from sticking together.

[0003] Among them, the take-up roller is the driving roller and the unwinding roller is the driven roller. During the winding process of the structural layer, when the take-up roller decelerates or pauses, the unwinding roller may fail to stop in time due to inertia, resulting in the protective film being over-unwound. When the take-up roller rewinds at this time, wrinkles and deviations will occur due to the loose wrapping of the protective film, which is a shortcoming. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a film-coated winding mechanism for the production structure layer of handrail belts. This mechanism solves the problems of protective film slack, entanglement, wrinkling, and misalignment that occur when the unwinding roller of the winding mechanism fails to stop in time during the production process and the winding roller rewinds.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0006] A handrail belt production structural layer film coating and winding mechanism includes a frame and a winding roller and an unwinding roller mounted on the frame for winding the structural layer and unwinding the protective film. The protective film is wound around the surface of the structural layer wound on the winding roller. A fixed shaft is fixed on the frame, and two support swing arms are movably hinged on the fixed shaft. A tension spring is installed between the two support swing arms.

[0007] Both of the two supporting swing arms have movable frames hinged to their opposite ends. Pressure rollers are rotatably connected to the movable frames. The pressure rollers on the two movable frames press on the surface of the protective film on the unwinding roller and the surface of the protective film wrapped around the outside of the structural layer on the winding roller, respectively. A positioning spring is installed between the movable frames and the supporting swing arms.

[0008] Preferably, the unwinding roller is located above the winding roller, and the fixed shaft is located on the side at the midpoint between the unwinding roller and the winding roller.

[0009] Preferably, both of the supporting swing arms are fixed with positioning seats. One of the positioning seats is fixed with a positioning sleeve that is movably sleeved on the surface of the tension spring. The other positioning seat is threaded with an adjusting bolt. A fixing plate is fixedly sleeved on the surface of the adjusting bolt. The fixing plate is supported on one end of the tension spring and one end of the adjusting bolt is inserted into the tension spring.

[0010] Preferably, the positioning sleeve comprises two symmetrically arranged semicircular tubes, and the adjusting bolt is a handle bolt.

[0011] Preferably, each of the movable frames is equipped with two pressure rollers, and the pressure rollers on the two movable frames are respectively located above the corresponding cut point of the unwinding protective film on the unwinding roller and below the cut point of the winding structure layer winding protective film.

[0012] Preferably, the system also includes a horizontal belt conveyor for conveying the structural layer. A support roller is provided below the conveyor belt surface of the horizontal belt conveyor, a glue-applying roller corresponding to the support roller is provided above the conveyor belt surface of the horizontal belt conveyor, and a center pressure roller corresponding to the drive roller is also provided above the conveyor belt surface of the horizontal belt conveyor.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] In this invention, pressure rollers are provided on the surface of the protective film on the unwinding roller and on the surface of the protective film wrapped around the outer layer of the structural layer on the take-up roller. The pressure rollers are pressed by the support swing arm and the movable frame. When the unwinding roller needs to slow down and stop when the take-up roller slows down and stops, the pressure rollers corresponding to the unwinding roller can stop the unwinding roller in time by providing frictional resistance, thereby stopping the unwinding of the protective film and avoiding the problem of over-unwinding of the protective film. This also prevents the protective film from becoming loose, wrinkled and misaligned on the structural layer of the take-up roller. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the supporting swing arm and movable frame structure of this utility model.

[0017] In the diagram: 1. Frame; 2. Structural layer; 3. Take-up roller; 4. Protective film; 5. Unwind roller; 6. Fixed shaft; 7. Support swing arm; 8. Tension spring; 9. Movable frame; 10. Pressure roller; 11. Positioning spring; 12. Positioning seat; 13. Positioning sleeve; 14. Adjusting bolt; 15. Fixed disc; 16. Horizontal belt conveyor; 17. Support roller; 18. Glue-applying roller; 19. Center pressure roller. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] like Figure 1-2 As shown, this utility model provides a technical solution: a handrail belt production structural layer film coating and winding mechanism, including a frame 1 and a winding roller 3 and an unwinding roller 5 mounted on the frame 1 for winding the structural layer 2 and unwinding protective film 4, the protective film 4 is wound on the surface of the structural layer 2 wound on the winding roller 3, and also includes a horizontal belt conveyor 16 for conveying the structural layer 2, a support roller 17 is provided below the conveyor belt surface of the horizontal belt conveyor 16, an adhesive roller 18 corresponding to the support roller 17 is provided above the conveyor belt surface of the horizontal belt conveyor 16, and a center pressure roller 19 corresponding to the drive roller is also provided above the conveyor belt surface of the horizontal belt conveyor 16;

[0020] A fixed shaft 6 is fixed on the frame 1. The unwinding roller 5 is located above the take-up roller 3. The fixed shaft 6 is located on the side at the middle position between the unwinding roller 5 and the take-up roller 3. Two support swing arms 7 are movably hinged on the fixed shaft 6. A tension spring 8 is installed between the two support swing arms 7.

[0021] Both support arms 7 are fixed with positioning seats 12. One positioning seat 12 is fixed with a positioning sleeve 13 that is movably sleeved on the surface of the tension spring 8. The other positioning seat 12 is threaded with an adjusting bolt 14. A fixing plate 15 is fixedly sleeved on the surface of the adjusting bolt 14. The fixing plate 15 is supported on one end of the tension spring 8 and one end of the adjusting bolt 14 is inserted into the tension spring 8. The positioning sleeve 13 includes two symmetrically arranged semi-circular tubes. The adjusting bolt 14 is a handle bolt.

[0022] Both supporting swing arms 7 have movable frames 9 hinged to their opposite ends. Pressure rollers 10 are rotatably connected to the movable frames 9. The pressure rollers 10 on the two movable frames 9 press on the surface of the protective film 4 on the unwinding roller 5 and the surface of the protective film 4 wrapped around the outer layer 2 on the winding roller 3, respectively. Each movable frame 9 is equipped with two pressure rollers 10. The pressure rollers 10 on the two movable frames 9 are located above the corresponding cutting point of the unwinding protective film 4 on the unwinding roller 5 and below the cutting point of the winding protective film 4 on the winding structural layer 2, respectively. A positioning spring 11 is installed between the movable frame 9 and the supporting swing arm 7.

[0023] Working principle:

[0024] Tightening the adjusting bolt 14 can change the compression length of the tension spring 8, thereby changing the supporting force on the two supporting swing arms 7, and thus changing the pressure of the pressure roller 10 on the unwinding roller 5 and the surface of the protective film 4 wrapped outside the structural layer 2 on the take-up roller 3. The frictional resistance caused by the pressure of the pressure roller 10 on the surface of the protective film 4 on the unwinding roller 5 ensures that the unwinding roller 5 can be stopped in time.

[0025] Structural layer 2 is conveyed by horizontal belt conveyor 16, coated with adhesive by coating roller 18, and then wound up by take-up roller 3. The protective film 4 unwound by unwind roller 5 is wrapped around the surface of structural layer 2 on take-up roller 3. As winding proceeds, the diameter of structural layer 2 on take-up roller 3 increases. The lower support swing arm 7 makes way by rotating to the left around fixed shaft 6 and tension spring 8 contracting, ensuring that pressure roller 10 stops and unwind roller 5 is not affected.

[0026] It should be noted that, in this document, terms such as “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A handrail belt production structure layer film laminating and winding mechanism, comprising a rack (1) and a winding roller (3) and a unwinding roller (5) for unwinding a protective film (4) installed on the rack (1) for winding a structure layer (2), the protective film (4) is wound on the surface of the structure layer (2) wound on the winding roller (3), characterized in that: A fixed shaft (6) is fixed on the frame (1), and two support swing arms (7) are movably hinged on the fixed shaft (6). A tension spring (8) is installed between the two support swing arms (7). Both of the two supporting swing arms (7) are movably hinged to movable frames (9), and pressure rollers (10) are rotatably connected to the movable frames (9). The pressure rollers (10) on the two movable frames (9) press on the surface of the protective film (4) on the unwinding roller (5) and the surface of the protective film (4) wrapped around the outside of the structural layer (2) on the winding roller (3), respectively. A positioning spring (11) is installed between the movable frame (9) and the supporting swing arm (7).

2. The handrail belt production structure layer coating and winding mechanism according to claim 1, characterized in that: The unwinding roller (5) is located above the winding roller (3), and the fixed shaft (6) is located on the side at the middle position between the unwinding roller (5) and the winding roller (3).

3. The handrail belt production structure layer coating and winding mechanism according to claim 1, characterized in that: Both of the support arms (7) are fixed with positioning seats (12). One of the positioning seats (12) is fixed with a positioning sleeve (13) that is movably sleeved on the surface of the tension spring (8). The other positioning seat (12) is threaded with an adjusting bolt (14). A fixing plate (15) is fixedly sleeved on the surface of the adjusting bolt (14). The fixing plate (15) is supported on one end of the tension spring (8) and one end of the adjusting bolt (14) is inserted into the tension spring (8).

4. The handrail belt production structure layer coating and winding mechanism according to claim 3, characterized in that: The positioning sleeve (13) includes two symmetrically arranged semicircular tubes, and the adjusting bolt (14) is a handle bolt.

5. The handrail belt production structure layer coating and winding mechanism according to claim 1, characterized in that: Each of the movable frames (9) is equipped with two pressure rollers (10). The pressure rollers (10) on the two movable frames (9) are respectively located above the cut point of the unwinding protective film (4) on the unwinding roller (5) and below the cut point of the winding protective film (4) on the winding structure layer (2).

6. The handrail belt production structure layer coating and winding mechanism according to claim 1, characterized in that: It also includes a horizontal belt conveyor (16) for conveying structure layer (2), a support roller (17) is provided below the conveyor belt surface of the horizontal belt conveyor (16), a glue roller (18) corresponding to the support roller (17) is provided above the conveyor belt surface of the horizontal belt conveyor (16), and a center pressure roller (19) corresponding to the drive roller is also provided above the conveyor belt surface of the horizontal belt conveyor (16).

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