Polyurethane sandwich panel laminating device

By designing a polyurethane sandwich panel coating device, the problems of bubbles and wrinkles caused by dust and particulate matter were solved by using a dust collector and a hot pressing mechanism, thus achieving a smooth coating effect for the polyurethane sandwich panel.

CN223934153UActive Publication Date: 2026-02-24HUBEI KELI ENERGY TECH CO LTD
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Patent Information

Application Number
CN202520468593.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-18
Publication Date
2026-02-24
Estimated Expiration
2035-03-18

AI Technical Summary

Technical Problem

During the lamination process of polyurethane sandwich panels, dust and particulate matter can easily cause air bubbles and wrinkles to form inside, affecting the lamination effect.

Method used

A polyurethane sandwich panel coating device was designed, comprising a conveyor belt, a main frame, rotating rollers, a dust collector, a guiding mechanism, and a hot pressing mechanism. The dust collector removes dust from the film material, and the guide rollers and rotating cylinders are used to adjust the position of the film material so that it passes through the dust collector. Combined with the hot pressing rollers, the film material is hot-pressed with the sandwich panel to form a whole, avoiding the generation of air bubbles.

Benefits of technology

It effectively removes dust from the film material, ensuring a smooth and bubble-free lamination process, thus improving the quality and effect of lamination.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223934153U_ABST
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Abstract

The utility model provides a polyurethane laminboard laminating device, which relates to the technical field of laminating devices, and comprises a conveyor belt, a main frame body and rotating rollers, a dust remover is arranged between the two rotating rollers, a hot pressing mechanism is arranged on the right side of the main frame body, and a guide mechanism is arranged at the top of the main frame body; one end of a film material is dragged to the outer side of the guide roller, then the film material on the guide roller is dragged to the rotating roller at the top of the main frame body, and the film material attached to the rotating roller at the top of the main frame body and the film material attached to the outer side of the guide roller are staggered in position. The output end of the rotating air cylinder can drive the rotating arm to rotate around the top of the main frame body through the connecting block, the position of the guide roller can be adjusted, and the film material is tightened through the rotating arm and the rotating roller at the top of the main frame body, so that the film material enters the dust remover more easily through the strip-shaped groove, and dust removal is conducted on the film material through the dust remover; and bubbles generated by dust during film covering are avoided.
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Description

Technical Field

[0001] This utility model relates to the field of coating device technology, and in particular to a polyurethane sandwich panel coating device. Background Technology

[0002] The production of polyurethane sandwich panels requires an advanced continuous production line. The process involves cold bending inner and outer galvanized (aluminized zinc) color steel sheets and coating the middle with rigid polyurethane foam. Polyurethane sandwich panels are aesthetically pleasing and have a good overall effect. They integrate load-bearing, heat insulation, fireproofing, and waterproofing, and require no secondary decoration. They are quick and easy to install, have a short construction period, and offer good overall benefits. They have a good cost-performance advantage and are a widely used and highly promising high-efficiency and energy-saving building envelope material.

[0003] Before the polyurethane sandwich panel is coated, it is impossible to remove dust and contaminant particles from its surface. This can easily cause dust and particles to get trapped in the coating process, resulting in air bubbles and wrinkles inside the polyurethane sandwich panel and affecting the coating effect. Therefore, this utility model proposes a polyurethane sandwich panel coating device to solve the above problems. Utility Model Content

[0004] To address the aforementioned problems, this utility model proposes a polyurethane sandwich panel coating device to solve the problem in the prior art where dust and particulate matter are trapped during the coating process, causing air bubbles and wrinkles to easily form inside the polyurethane sandwich panel coating, thus affecting the coating effect.

[0005] To achieve the purpose of this utility model, the utility model is implemented through the following technical solution: a polyurethane sandwich panel coating device, including a conveyor belt, a main frame and rotating rollers, the main frame is provided at the top of the conveyor belt, two rotating rollers are rotatably connected to the left side of the main frame, and a dust collector is provided between the two rotating rollers, a hot pressing mechanism is provided on the right side of the main frame, and a guiding mechanism is provided at the top of the main frame.

[0006] A further improvement is made in that: the guiding mechanism includes a rotating arm, a guide roller, a rotating cylinder and a connecting block. The top of the main frame is symmetrically hinged with a rotating arm, the top of the rotating arm is hinged with a guide roller, the bottom of one side of the main frame is hinged with a rotating cylinder, the output end of the rotating cylinder is fixedly connected to a connecting block, and the top of the connecting block is hinged to the outside of the rotating arm through a pin.

[0007] A further improvement is that the dust collector has a vertically connected strip groove inside, one side of the two rotating rollers is parallel to the position of the strip groove, and the film material is staggered and wrapped around the outside of the guide roller and the rotating roller at the top of the main frame.

[0008] A further improvement is that the hot pressing mechanism includes a lifting cylinder, a hinge frame, and a hot pressing roller. The lifting cylinder is fixedly installed on the top right side of the main frame, and the output end of the lifting cylinder is fixedly connected to the hinge frame. The hot pressing roller is hinged to the inner side of the hinge frame.

[0009] A further improvement is that the width of the conveyor belt is smaller than the width of the conveyor belt, the inside of the hot press roller is provided with an electric heating resistance ring, and the bottom of the hot press roller is bonded to the top of the polyurethane sandwich panel.

[0010] A further improvement is that a support frame is fixedly connected to the right side of the conveyor belt, a groove is provided at the top of the support frame, a sliding frame is slidably connected inside the groove, a cutter is fixedly connected to the bottom end of the sliding frame, and a drive mechanism is provided at the top of the support frame.

[0011] A further improvement is that the driving mechanism includes a lead screw and a rotary motor. The rotary motor is fixedly installed on one side of the top of the support frame, and the lead screw is rotatably connected to the top of the support frame. The output end of the rotary motor is fixedly connected to one end of the lead screw, and one end of the lead screw passes through the top of the sliding frame and is threadedly connected to it.

[0012] The beneficial effects of this utility model are as follows: one end of the film material is pulled to the outside of the guide roller, and then the film material on the guide roller is pulled to the rotating roller at the top of the main frame. The film material attached to the rotating roller at the top of the main frame and the film material attached to the outside of the guide roller are misaligned. The output end of the rotating cylinder can drive the rotating arm to rotate around the top of the main frame through the connecting block, which can adjust the position of the guide roller. The film material is tightened by the rotating arm and the rotating roller at the top of the main frame, making it easier for the film material to enter the interior of the dust collector through the strip groove. The dust collector removes dust from the film material, avoiding the formation of air bubbles due to dust during film coating. Attached Figure Description

[0013] Figure 1 This is the front view of the present invention;

[0014] Figure 2 This is a side view of the present invention;

[0015] Figure 3 This is a top view of the present invention;

[0016] Figure 4 This is a schematic diagram of the hot pressing mechanism of this utility model;

[0017] Figure 5 This is a schematic diagram of the cutting blade structure of this utility model.

[0018] The components include: 1. Conveyor belt; 2. Main frame; 3. Rotating roller; 4. Support frame; 5. Dust collector; 6. Rotating arm; 7. Guide roller; 8. Rotating cylinder; 9. Connecting block; 10. Lifting cylinder; 11. Hinge frame; 12. Hot press roller; 13. Slide groove; 14. Sliding frame; 15. Cutting knife; 16. Lead screw; 17. Rotary motor. Detailed Implementation

[0019] To deepen the understanding of this utility model, the following detailed description will be provided in conjunction with embodiments. These embodiments are only used to explain this utility model and do not constitute a limitation on the scope of protection of this utility model.

[0020] according to Figure 1-5 As shown, this embodiment proposes a polyurethane sandwich panel coating device, including a conveyor belt 1, a main frame 2, and rotating rollers 3. The main frame 2 is located at the top of the conveyor belt 1. Two rotating rollers 3 are rotatably connected to the left side of the main frame 2, and a dust collector 5 is located between the two rotating rollers 3. A hot pressing mechanism is located on the right side of the main frame 2, and a guiding mechanism is located at the top of the main frame 2. First, the film material on the external winding roller is pulled through the guiding mechanism and the main frame 2 in sequence, and also through the inside of the dust collector 5. The dust collector 5 can remove dust from the film material. Finally, the film material is moved to the bottom of the hot pressing mechanism. Then, the polyurethane sandwich panel is placed on the left side of the conveyor belt 1. The conveyor belt 1 drives the polyurethane sandwich panel to move from left to right. After one side of the polyurethane sandwich panel comes into contact with the film material, the hot pressing mechanism heat-presses the film material to one side of the polyurethane sandwich panel. The conveyor belt 1 drives the polyurethane sandwich panel to continue moving to the right, and the polyurethane sandwich panel will also pull the film material to continue moving to the right until the hot pressing mechanism covers the entire polyurethane sandwich panel with film material.

[0021] The guiding mechanism includes a rotating arm 6, a guide roller 7, a rotating cylinder 8, and a connecting block 9. The rotating arm 6 is symmetrically hinged to the top of the main frame 2, and the guide roller 7 is hinged to the top of the rotating arm 6. The rotating cylinder 8 is hinged to the bottom of one side of the main frame 2. The output end of the rotating cylinder 8 is fixedly connected to the connecting block 9. The top of the connecting block 9 is hinged to the outside of the rotating arm 6 through a pin. The dust collector 5 has a vertically connected strip groove inside. One side of the two rotating rollers 3 is parallel to the position of the strip groove. The film material is staggered and wrapped around the outside of the guide roller 7 and the rotating roller 3 at the top of the main frame 2.

[0022] One end of the membrane material is pulled to the outside of the guide roller 7, and then the membrane material on the guide roller 7 is pulled to the rotating roller 3 at the top of the main frame 2. The membrane material attached to the rotating roller 3 at the top of the main frame 2 and the membrane material attached to the outside of the guide roller 7 are misaligned. The output end of the rotating cylinder 8 can drive the rotating arm 6 to rotate around the top of the main frame 2 through the connecting block 9, which can adjust the position of the guide roller 7. The membrane material is tightened by the rotating arm 6 and the rotating roller 3 at the top of the main frame 2, so that the membrane material can more easily enter the interior of the dust collector 5 through the strip groove. The dust collector 5 removes dust from the membrane material to avoid air bubbles caused by dust during the coating process. The electric motor inside the dust collector 5 drives the fan to rotate at high speed. When the fan rotates, the air in the sealed shell of the dust collector 5 is quickly drawn out to form a negative pressure area. The negative pressure area can draw in the outside air and dust and suck them into the interior of the dust collector 5. The drawn-in air and dust pass through the filtration system, such as dust bags, filter screens or HEPA filters. These filters can capture dust and other particles, while the filtered air is discharged from the other side of the dust collector.

[0023] The hot pressing mechanism includes a lifting cylinder 10, a hinge frame 11, and a hot pressing roller 12. The lifting cylinder 10 is fixedly installed on the top right side of the main frame 2. The output end of the lifting cylinder 10 is fixedly connected to the hinge frame 11. The hot pressing roller 12 is hinged to the inner side of the hinge frame 11. The width of the conveyor belt 1 is smaller than the width of the conveyor belt 1. The hot pressing roller 12 is provided with an electric heating resistance coil inside. The bottom of the hot pressing roller 12 is attached to the top of the polyurethane sandwich panel.

[0024] The output end of the lifting cylinder 10 can drive the hot press roller 12 to move downward. The hot press roller 12 can press the film material to adhere to the top of the polyurethane sandwich panel. The internal electric heating resistance coil of the hot press roller 12 can convert electrical energy into heat energy to heat press the film material and the polyurethane sandwich panel together. Then, the output end of the lifting cylinder 10 can drive the hot press roller 12 to move upward. The hot press roller 12 can rotate inside the hinge frame 11 to reduce the friction between the hot press roller 12 and the polyurethane sandwich panel, so that the polyurethane sandwich panel moves more smoothly.

[0025] A support frame 4 is fixedly connected to the right side of the conveyor belt 1. A slide groove 13 is provided on the top of the support frame 4. A sliding frame 14 is slidably connected inside the slide groove 13. A cutter 15 is fixedly connected to the bottom end of the sliding frame 14. A drive mechanism is provided on the top of the support frame 4.

[0026] The drive mechanism includes a lead screw 16 and a rotary motor 17. The rotary motor 17 is fixedly installed on one side of the top of the support frame 4. The lead screw 16 is rotatably connected to the top of the support frame 4. The output end of the rotary motor 17 is fixedly connected to one end of the lead screw 16. One end of the lead screw 16 passes through the top of the sliding frame 14 and is threadedly connected to it.

[0027] After the polyurethane sandwich panel is coated, it continues to move to the right. The polyurethane sandwich panel passes under the support frame 4. The lead screw 16 is threadedly engaged with the sliding frame 14, and the slide groove 13 restricts the movement trajectory of the sliding frame 14. When the rotary motor 17 drives the lead screw 16 to rotate in both directions, it can drive the sliding frame 14 to move back and forth in a straight line along the slide groove 13. The cutter 15 is fixed at the bottom of the sliding frame 14. The sliding frame 14 can drive the cutter 15 to move back and forth in a straight line to cut the film material and then automatically reset.

[0028] The polyurethane sandwich panel coating device pulls one end of the film material to the outside of the guide roller 7, and then pulls the film material on the guide roller 7 to the rotating roller 3 on the top of the main frame 2. The film material attached to the rotating roller 3 on the top of the main frame 2 and the film material attached to the outside of the guide roller 7 are misaligned. The output end of the rotating cylinder 8 can drive the rotating arm 6 to rotate around the top of the main frame 2 through the connecting block 9, which can adjust the position of the guide roller 7. The rotating arm 6 and the rotating roller 3 on the top of the main frame 2 are used to tighten the film material, making it easier for the film material to enter the interior of the dust collector 5 through the strip groove. The dust collector 5 removes dust from the film material and avoids air bubbles caused by dust during coating.

[0029] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A polyurethane sandwich panel coating device, comprising a conveyor belt (1), a main frame (2), and a rotating roller (3), characterized in that: The top of the conveyor belt (1) is provided with a main frame (2), and two rotating rollers (3) are rotatably connected to the left side of the main frame (2), and a dust collector (5) is provided between the two rotating rollers (3). A hot pressing mechanism is provided on the right side of the main frame (2), and a guiding mechanism is provided on the top of the main frame (2). The guiding mechanism includes a rotating arm (6), a guide roller (7), a rotating cylinder (8), and a connecting block (9). The top of the main frame (2) is symmetrically hinged with a rotating arm (6), the top of the rotating arm (6) is hinged with a guide roller (7), and the bottom of one side of the main frame (2) is hinged with a rotating cylinder (8). The output end of the rotating cylinder (8) is fixedly connected to a connecting block (9), and the top of the connecting block (9) is hinged to the outside of the rotating arm (6) through a pin.

2. The polyurethane sandwich panel coating device according to claim 1, characterized in that: The dust collector (5) has a vertically connected strip groove inside. One side of the two rotating rollers (3) is parallel to the position of the strip groove. The film material is staggered and wrapped around the outside of the rotating roller (3) at the top of the guide roller (7) and the main frame (2).

3. The polyurethane sandwich panel coating device according to claim 1, characterized in that: The hot pressing mechanism includes a lifting cylinder (10), a hinge frame (11), and a hot pressing roller (12). The lifting cylinder (10) is fixedly installed on the top right side of the main frame (2). The output end of the lifting cylinder (10) is fixedly connected to the hinge frame (11). The hot pressing roller (12) is hinged to the inner side of the hinge frame (11).

4. The polyurethane sandwich panel coating device according to claim 3, characterized in that: The width of the conveyor belt (1) is smaller than the width of the conveyor belt (1). The inside of the hot press roller (12) is provided with an electric heating resistance ring. The bottom of the hot press roller (12) is attached to the top of the polyurethane sandwich panel.

5. A polyurethane sandwich panel coating device according to claim 1, characterized in that: A support frame (4) is fixedly connected to the right side of the conveyor belt (1). A groove (13) is provided on the top of the support frame (4). A sliding frame (14) is slidably connected inside the groove (13). A cutter (15) is fixedly connected to the bottom end of the sliding frame (14). A drive mechanism is provided on the top of the support frame (4).

6. A polyurethane sandwich panel coating device according to claim 5, characterized in that: The driving mechanism includes a lead screw (16) and a rotary motor (17). The rotary motor (17) is fixedly installed on one side of the top of the support frame (4). The lead screw (16) is rotatably connected to the top of the support frame (4). The output end of the rotary motor (17) is fixedly connected to one end of the lead screw (16). One end of the lead screw (16) passes through the top of the sliding frame (14) and is threadedly connected to it.