High-temperature laminating equipment for screen cloth and PVC (Polyvinyl Chloride) blank film

Abstract

The utility model discloses high-temperature laminating equipment for screen cloth and a PVC (Polyvinyl Chloride) blank film, and relates to the technical field of laminating equipment for the PVC blank film. The high-temperature laminating equipment for the screen cloth and the PVC blank film comprises supporting frames, a heating mechanism used for heating the PVC film is fixedly installed in the supporting frames, a laminating mechanism used for laminating the PVC film is installed at the rear ends of the supporting frames, the heating mechanism comprises a fixing shaft fixedly installed between the supporting frames, an electric heating wire is fixedly installed on the outer side of the fixing shaft, and the electric heating wire is fixedly installed on the outer side of the fixing shaft. Bearings are installed at the two ends of the fixing shaft in a penetrating mode, heating pipes are installed on the outer sides of the bearings in an embedded mode, due to guiding of the guiding roller and the limiting roller, the attaching area of the PVC film and the two heating pipes in the center of the supporting frame is one half of the cylindrical surfaces of the heating pipes, and therefore the contact area between the PVC film and the heating pipes is increased; the electric heating wire is located on the inner side of the attaching portion of the PVC film and the heating pipe, and therefore the heating efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of PVC preform lamination equipment, specifically a high-temperature lamination equipment for mesh fabric and PVC preform. Background Technology

[0002] As people's living standards continue to improve, their demands for decoration effects in their lives, work, and urban development are increasing, leading to a corresponding increase in resource consumption and resource scarcity. To meet these needs, PVC decorative film is currently being used to replace the natural textures of traditional decorative materials. To improve production efficiency and expand production scale, mechanized production of decorative film has become the mainstream approach.

[0003] The existing Chinese utility model patent with publication number CN204938532U discloses a PVC film laminating machine, including a frame, a feeding table, a laminating machine body, a heating device, and a winding device. The feeding table is equipped with a support roller for supporting a whole roll of PVC film, and a feeding roller is provided at the lower part of the feeding table, with the PVC film passing over the feeding roller. This utility model describes a PVC film laminating machine where the feeding table holds the PVC film, the laminating machine body laminates the decorative film and the PVC film, the heating device heats and fuses the laminated film, and the winding device winds it up, achieving rapid lamination and winding of the PVC film, resulting in high production efficiency and good product quality consistency.

[0004] Since both sides of the mesh fabric need to be laminated with PVC film, and the existing laminating equipment uses a roller heating structure with a small contact area with the PVC film, multiple rollers are needed to heat the PVC mold, resulting in low heating efficiency. Furthermore, after heating, the PVC mold needs to be moved to the laminating mechanism for a certain period of time, which causes heat loss from the PVC film and affects the lamination effect. Utility Model Content

[0005] To address the shortcomings of existing technologies, this invention provides a high-temperature bonding device for mesh fabric and PVC preform film, which solves the problems of avoiding heat loss from the PVC film affecting the bonding effect and low heating efficiency.

[0006] To achieve the above objectives, this utility model is implemented through the following technical solution: a high-temperature bonding device for mesh fabric and PVC preform film, including a support frame, a heating mechanism for heating PVC film is fixedly installed inside the support frame, and a bonding mechanism for bonding PVC film is installed at the rear end of the support frame;

[0007] The heating mechanism includes a fixed shaft fixedly installed between the support frames, an electric heating wire fixedly installed on the outside of the fixed shaft, bearings inserted at both ends of the fixed shaft, and heating tubes fitted on the outside of the bearings.

[0008] The bonding mechanism includes a pressure-holding piston fixedly installed on the top of the support frame. A limit rod is fixedly installed at the bottom of the pressure-holding piston. Limit posts are inserted at both ends of the limit rod. A spring is inserted on the outside of the limit post. A slider is movably installed on the outside of the limit post. A pressure roller is movably installed on one side of the slider.

[0009] Preferably, the support frame is internally equipped with guide rollers and limiting rollers. There are four guide rollers, which are symmetrically installed on the front and rear sides of the top and bottom ends of the support frame. The guide rollers are rotatably connected to the support frame. There are five limiting rollers, which are rotatably installed at the center of the support frame. The limiting rollers are rotatably connected to the support frame.

[0010] Preferably, the outer side of the fixed shaft is provided with a half-cylindrical protrusion, the heating wire is installed on the outer side of the central protrusion structure of the fixed shaft, and the two ends of the outer edge of the heating tube are provided with annular protrusion structures.

[0011] Preferably, the heating tube has protrusions at both ends that fit into the bearings, the heating tube is rotatably connected to the fixed shaft through the bearings, and the heating tube has annular protrusions at both ends on the outer side.

[0012] Preferably, the top surface of the limiting rod is fixedly connected to the movable ends of the pressure-holding pistons on the left and right sides, the two ends of the limiting column are fixedly connected to the support frame on the same side, and the spring is located between the limiting rod and the slider.

[0013] Preferably, the slider and the limiting post form a sliding connection, the pressure roller and the slider form a rotating connection, and the pressure roller is fitted with the protruding structures on the outer sides of both ends of the heating tube.

[0014] Beneficial effects

[0015] This invention provides a high-temperature bonding device for mesh fabric and PVC preform film. Compared with the prior art, it has the following advantages:

[0016] (1) The high-temperature bonding equipment for the mesh and PVC preform film, through the setting of the heating tube, the diameter of the heating tube is larger than that of the guide roller, and the protruding structure of the fixed shaft can restrict the position of the heating wire, reduce the distance between the heating wire and the heating tube, and improve the heat conduction efficiency between the heating wire and the heating tube. The PVC film is heated by the heating tube. Due to the guidance of the guide roller and the limiting roller, the bonding area between the PVC film and the two heating tubes in the center of the support frame is half the cylindrical surface of the heating tube, thereby increasing the contact area between the PVC film and the heating tube. By adjusting the rotation angle of the fixed shaft, the heating wire is located inside the bonding part between the PVC film and the heating tube, thereby improving the heating efficiency.

[0017] (2) The high-temperature bonding equipment for the mesh and PVC preform film is equipped with a heating wire that is fixed to the outside of the protruding structure of the fixed shaft. The heating mechanism is also installed directly below the pressure roller. The pressure roller is fitted with the protruding structures on the outside of both ends of the heating tube. The position of the limit rod is adjusted by the pressure holding piston to limit the position of the top of the spring, so that the spring is kept in a compressed state. The elastic force applied to the slider by the spring when it is compressed makes the surface of the pressure roller fit with the surface of the heating tube below, so that the mesh and PVC film are bonded together. Due to the guidance of the guide roller, the PVC film and the mesh will be vertically wound upward from below the heating tube at the bottom of the pressure roller to the surface of the heating tube. At this time, the contact surface between the PVC film, the mesh and the heating tube is a quarter cylindrical surface of the heating tube. The angle of the fixed shaft is adjusted to make the heating wire located inside the contact surface between the PVC film, the mesh and the heating tube. The PVC film is heated a second time before pressing and bonding to ensure the temperature of the PVC film during bonding. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the guide roller installation structure of this utility model;

[0020] Figure 3 This is a schematic diagram of the heating wire installation structure of this utility model;

[0021] Figure 4 This is a schematic diagram of the pressure roller mounting structure of this utility model;

[0022] In the diagram: 1. Support frame; 11. Guide roller; 12. Limiting roller; 2. Heating mechanism; 21. Fixed shaft; 22. Heating wire; 23. Bearing; 24. Heating tube; 3. Bonding mechanism; 31. Pressure holding piston; 32. Limiting rod; 33. Limiting post; 34. Spring; 35. Slider; 36. Pressure roller. Detailed Implementation

[0023] 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.

[0024] Please see Figure 1-4 This utility model provides a technical solution: a high-temperature bonding device for mesh fabric and PVC preform film, including a support frame 1. A heating mechanism 2 for heating the PVC film is fixedly installed inside the support frame 1. The heating mechanism 2 includes a fixed shaft 21 fixedly installed between the support frames 1. An electric heating wire 22 is fixedly installed on the outside of the fixed shaft 21. Bearings 23 are inserted and installed at both ends of the fixed shaft 21. Heating tubes 24 are fitted onto the outside of the bearings 23. Guide rollers 11 and limiting rollers 12 are movably installed inside the support frame 1. There are four guide rollers 11, symmetrically installed at the top and bottom of the support frame 1. The rear two guide rollers 11 are rotatably connected to the support frame 1. There are five limiting rollers 12, which are movably installed at the center of the support frame 1. The limiting rollers 12 are rotatably connected to the support frame 1. The outer side of the fixed shaft 21 is provided with a half-cylindrical protrusion. The heating wire 22 is installed on the outer side of the central protrusion structure of the fixed shaft 21. The two ends of the outer edge of the heating tube 24 are provided with annular protrusion structures. The two ends of the heating tube 24 are provided with protrusions that fit into the bearings 23. The heating tube 24 is rotatably connected to the fixed shaft 21 through the bearings 23. The two ends of the outer side of the heating tube 24 are provided with annular protrusions.

[0025] Specifically, the support frame 1 restricts the positions of the guide roller 11 and the limiting roller 12. The guide roller 11 guides the PVC film to wrap around the surface of the heating tube 24. The heating mechanism 2, which is mirror-mounted at the center of the support frame 1, preheats the PVC film. The heating mechanism 2, mounted on the rear side of the support frame 1, maintains a certain temperature for the PVC film during lamination. The protruding structure of the fixed shaft 21 restricts the position of the heating wire 22, reduces the distance between the heating wire 22 and the heating tube 24, and improves the heat transfer efficiency between the heating wire 22 and the heating tube 24. The heating tube 24 then heats the PVC film... During heating, due to the setting of guide roller 11 and limit roller 12, the contact area between the PVC film and the two heating tubes 24 in the center of the support frame 1 is half the cylindrical surface of the heating tube 24, thereby increasing the contact area between the PVC film and the heating tube 24. By adjusting the rotation angle of the fixed shaft 21, the heating wire 22 is located inside the contact area between the PVC film and the heating tube 24, thereby improving the heating efficiency. Furthermore, the heating tube 24 is rotatably connected to the fixed shaft 21 through the bearing 23, which can reduce the friction between the heating tube 24 and the PVC film to facilitate the movement of the PVC film.

[0026] The rear end of the support frame 1 is equipped with a bonding mechanism 3 for bonding PVC film. The bonding mechanism 3 includes a pressure-holding piston 31 fixedly installed at the top of the support frame 1. A limit rod 32 is fixedly installed at the bottom end of the pressure-holding piston 31. Limiting posts 33 are inserted through both ends of the limit rod 32. A spring 34 is inserted through the outer side of the limit post 33. A slider 35 is movably installed on the outer side of the limit post 33. A pressure roller 36 is movably installed on one side of the slider 35. The top surface of the limit rod 32 is fixedly connected to the movable ends of the pressure-holding pistons 31 on the left and right sides. The two ends of the limit post 33 are fixedly connected to the support frame 1 on the same side. The spring 34 is located between the limit rod 32 and the slider 35. The slider 35 and the limit post 33 form a sliding connection. The pressure roller 36 and the slider 35 form a rotating connection. The pressure roller 36 is fitted with the protruding structure on the outer side of both ends of the heating tube 24.

[0027] Specifically, the position of the limiting rod 32 is adjusted by the pressure-holding piston 31 to limit the position of the top of the spring 34, thereby keeping the spring 34 in a compressed state. The elastic force applied to the slider 35 by the spring 34 when it is compressed causes the surface of the pressure roller 36 to be in contact with the surface of the heating tube 24 below, thereby making the mesh and the PVC film adhere to each other. The limiting post 33 can limit the movement direction of the limiting rod 32 and the slider 35, and the slider 35 can limit the position of the pressure roller 36. At the same time, the contents not described in detail in this specification are all prior art known to those skilled in the art.

[0028] During operation, the diameter of the heating tube 24 is larger than that of the guide roller 11. The protruding structure of the fixed shaft 21 can restrict the position of the heating wire 22, reduce the distance between the heating wire 22 and the heating tube 24, and improve the heat conduction efficiency between the heating wire 22 and the heating tube 24. The PVC film is heated by the heating tube 24. Due to the setting of the guide roller 11 and the limiting roller 12, the contact area between the PVC film and the two heating tubes 24 in the center of the support frame 1 is half the cylindrical surface of the heating tube 24, thereby increasing the contact area between the PVC film and the heating tube 24. By adjusting the rotation angle of the fixed shaft 21, the heating wire 22 is positioned inside the contact area between the PVC film and the heating tube 24, thereby improving the heating efficiency. The heating wire 22 is fixed to the outside of the protruding structure of the fixed shaft 21. The heating mechanism 2 is also installed directly below the pressure roller 36, and the roller 36 and the heating tube 24... The protruding structures on both outer sides fit together, and the position of the limiting rod 32 is adjusted by the pressure-holding piston 31 to limit the position of the top of the spring 34, thereby keeping the spring 34 in a compressed state. The elastic force applied to the slider 35 by the spring 34 when it is compressed makes the surface of the pressure roller 36 fit with the surface of the heating tube 24 below, thereby making the mesh and PVC film fit together. Due to the guidance of the guide roller 11, the PVC film and the mesh will be vertically wound upward from below the heating tube 24 at the bottom of the pressure roller 36 to the surface of the heating tube 24. At this time, the contact surface between the PVC film, the mesh and the heating tube 24 is a quarter cylindrical surface of the heating tube 24. By adjusting the angle of the fixed shaft 21, the heating wire 22 is located inside the contact surface between the PVC film, the mesh and the heating tube 24. The PVC film is heated a second time before pressing and bonding to ensure the temperature of the PVC film during bonding.

[0029] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "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.

[0030] 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 high-temperature bonding device for mesh fabric and PVC preform film, comprising a support frame (1), characterized in that: The support frame (1) is internally fixedly equipped with a heating mechanism (2) for heating PVC film, and the rear end of the support frame (1) is equipped with a bonding mechanism (3) for bonding PVC film. The heating mechanism (2) includes a fixed shaft (21) fixedly installed between the support frame (1), an electric heating wire (22) fixedly installed on the outside of the fixed shaft (21), bearings (23) inserted at both ends of the fixed shaft (21), and a heating tube (24) fitted on the outside of the bearing (23). The bonding mechanism (3) includes a pressure-holding piston (31) fixedly installed on the top of the support frame (1). A limit rod (32) is fixedly installed at the bottom end of the pressure-holding piston (31). Limiting posts (33) are inserted through both ends of the limit rod (32). A spring (34) is inserted through the outside of the limiting post (33). A slider (35) is movably installed on the outside of the limiting post (33). A pressure roller (36) is movably installed on one side of the slider (35).

2. The high-temperature bonding equipment for mesh fabric and PVC preform film according to claim 1, characterized in that: The support frame (1) is internally equipped with guide rollers (11) and limiting rollers (12). There are four guide rollers (11), which are symmetrically installed on the front and rear sides of the top and bottom of the support frame (1). The guide rollers (11) and the support frame (1) are rotatably connected. There are five limiting rollers (12), which are rotatably installed at the center of the support frame (1). The limiting rollers (12) and the support frame (1) are rotatably connected.

3. The high-temperature bonding equipment for mesh fabric and PVC preform film according to claim 1, characterized in that: The fixed shaft (21) has a half-cylindrical protrusion on its outer side, the heating wire (22) is installed on the outer side of the central protrusion structure of the fixed shaft (21), and the heating tube (24) has annular protrusion structures at both ends of its outer edge.

4. The high-temperature bonding equipment for mesh fabric and PVC preform film according to claim 1, characterized in that: The heating tube (24) has protrusions at both ends that fit into the bearing (23). The heating tube (24) is rotatably connected to the fixed shaft (21) through the bearing (23). The heating tube (24) has annular protrusions at both ends on the outer side.

5. The high-temperature bonding equipment for mesh fabric and PVC preform film according to claim 1, characterized in that: The top surface of the limiting rod (32) is fixedly connected to the movable ends of the pressure-holding pistons (31) on the left and right sides, the two ends of the limiting column (33) are fixedly connected to the support frame (1) on the same side, and the spring (34) is located between the limiting rod (32) and the slider (35).

6. The high-temperature bonding equipment for mesh fabric and PVC preform film according to claim 1, characterized in that: The slider (35) and the limiting post (33) form a sliding connection, the pressure roller (36) and the slider (35) form a rotating connection, and the pressure roller (36) is fitted with the protruding structure on the outer side of both ends of the heating tube (24).

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