A film coating device for PVC wood-plastic board production

Abstract

The utility model discloses a PVC wood plastic board production is with laminating device, it includes: frame, conveyer, gantry, unwinding machine, controller, air knife, first compression roller, second compression roller and cutting knife, the conveyer horizontal setting is on the frame, carries out the conveyance of PVC wood plastic board, the gantry sets up on the frame and straddles the conveyer, the unwinding machine sets up on the gantry, first compression roller, cutting knife and second compression roller follow the order from back to front in turn liftablely set up in the gantry, the film is unwound from unwinding machine and is pressed together on the PVC wood plastic board that conveyer sent down after first compression roller, the controller is connected with conveyer and unwinding machine, carries out operation control, the air knife is suspended in the gantry and is located the rear of first compression roller, the air outlet of air knife is obliquely downward and points to the bottom of first compression roller. The PVC wood plastic board production is with laminating device can automatically carry out laminating, has improved the laminating precision.

Description

Technical Field

[0001] This utility model relates to the field of PVC wood-plastic composite board processing equipment, and in particular to a coating device for PVC wood-plastic composite board production. Background Technology

[0002] To protect the surface of PVC wood-plastic composite boards, a plastic film or decorative film needs to be applied to the surface to improve the waterproof effect and avoid friction damage during transportation and installation.

[0003] The lamination of PVC wood-plastic composite boards can be done manually or automatically. In the prior art, invention patent application number 2022107871915 discloses a lamination device for PVC wood-plastic composite board production, which performs film cutting and lamination. However, the film cannot be stretched taut during cutting, reducing the success rate of cutting. Furthermore, after cutting, the unwound film head falls freely and cannot accurately adhere to the subsequent PVC wood-plastic composite boards, requiring improvement. Utility Model Content

[0004] The purpose of this utility model is to provide a film coating device for the production of PVC wood-plastic composite boards, which is used for coating PVC wood-plastic composite boards with a thin film, thereby improving the level of automation and the accuracy of film coating.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] A laminating device for producing PVC wood-plastic composite boards includes: a frame, a conveyor, a gantry frame, an unwinder, a controller, an air knife, a first pressure roller, a second pressure roller, and a cutter. The conveyor is horizontally mounted on the frame for conveying the PVC wood-plastic composite boards. The gantry frame is mounted on the frame and spans the conveyor. The unwinder is mounted on the gantry frame. The first pressure roller, the cutter, and the second pressure roller are sequentially and vertically arranged in the gantry frame from back to front. The film is unwound from the unwinder and pressed downwards onto the PVC wood-plastic composite boards fed by the conveyor via the first pressure roller. The controller is connected to the conveyor and the unwinder for operation control. The air knife is suspended in the gantry frame and located behind the first pressure roller, with the air outlet pointing obliquely downwards towards the bottom of the first pressure roller.

[0007] The frame is provided with a bracket that extends upward to the side below the first pressure roller, and the bracket is provided with a photoelectric sensor pointing to the conveying path of the PVC wood-plastic board.

[0008] The photoelectric sensor is connected to the controller for signal transmission.

[0009] The gantry frame is equipped with lifting drive devices that correspond one-to-one with the first pressure roller, the second pressure roller, and the cutter.

[0010] The lifting drive device is a cylinder, and the controller is connected to the lifting drive device to control the lifting.

[0011] The gantry frame is equipped with a suspension rod connected to the air knife.

[0012] The conveyor is either a belt conveyor or a chain conveyor.

[0013] The air knife is connected to a compressed air pipeline, and a solenoid valve connected to the controller is installed on the compressed air pipeline.

[0014] The beneficial effects of this utility model are as follows: A laminating device for PVC wood-plastic composite board production. When the PVC wood-plastic composite board passes under the first pressure roller, the descent of the first pressure roller presses the film unwound from the unwinding machine onto the PVC wood-plastic composite board. A second pressure roller is used for secondary rolling to improve the bonding effect. After lamination, the conveyor pauses, and the first and second pressure rollers continue to press down to tension the film. Automatic cutting is achieved by the downward pressure of the cutter. The cut film head is kept under the first pressure roller by compressed air blown out by the air knife, ensuring that it can be smoothly bonded to the subsequently delivered PVC wood-plastic composite board, thus improving the lamination accuracy. Attached Figure Description

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

[0016] Figure 2 yes Figure 1 A schematic diagram of the structure of PVC wood-plastic composite board after film coating. Detailed Implementation

[0017] The following is combined with Figures 1 to 2 The technical solution of this utility model will be further illustrated through specific embodiments.

[0018] like Figure 1 The PVC wood-plastic composite board production laminating device shown is used for laminating the film 14 onto the PVC wood-plastic composite board 10. It includes: a frame 1, a conveyor 2, a gantry frame 3, an unwinding machine 7, a controller, an air knife 8, a first pressure roller 4, a second pressure roller 6, and a cutter 5. The conveyor 2 is horizontally arranged on the frame 1 to transport the PVC wood-plastic composite board 10. In this embodiment, the conveyor 2 is a belt conveyor or a chain conveyor to ensure the stability of the PVC wood-plastic composite board 10 during the transport process.

[0019] The gantry 3 is mounted on the frame 1 and spans the conveyor 2. The unwinding machine 7 is mounted on the gantry 3 and unwinds the film 14. The unwinding machine 7 is equipped with an unwinding motor, which can control the unwinding speed to ensure synchronization between unwinding and film coating.

[0020] The first pressure roller 4, the cutter 5, and the second pressure roller 6 are sequentially and vertically arranged in the gantry frame 3 from back to front. In this embodiment, the gantry frame 3 is equipped with a lifting drive device 9 corresponding to the first pressure roller 4, the second pressure roller 6, and the cutter 5. The lifting drive device 9 is a cylinder, and the controller is connected to the lifting drive device 9 to control the lifting. The controller can be a PLC to improve the level of automation.

[0021] like Figure 1 As shown, the frame 1 is provided with a bracket 12 extending upward to one side below the first pressure roller 4. The bracket 12 is provided with a photoelectric sensor 13 pointing to the conveying path of the PVC wood-plastic composite board 10. The photoelectric sensor 13 is connected to the controller to transmit signals and realize the displacement monitoring of the PVC wood-plastic composite board 10.

[0022] like Figure 2 As shown, the film 14, after being unwound from the unwinding machine 7, is pressed downwards by the first pressure roller 4 onto the PVC wood-plastic composite board 10 fed by the conveyor 2. The controller is connected to the conveyor 2 and the unwinding machine 7 to control their operation and achieve synchronization between unwinding and lamination. When the PVC wood-plastic composite board 10 passes under the first pressure roller 4, the descending first pressure roller 4 presses the film 4 unwound from the unwinding machine 7 onto the PVC wood-plastic composite board 10, and a second pressure roller 6 performs secondary rolling to improve the bonding effect.

[0023] After the film coating is completed, the conveyor 2 stops operating, the first pressure roller 4 and the second pressure roller 6 continue to press down to tension the film 14, and the film 14 is automatically cut by the downward pressure of the cutter 5.

[0024] like Figure 1 As shown, the air knife 8 is suspended in the gantry frame 3 and located behind the first pressure roller 4. The air outlet of the air knife 8 points obliquely downward to the bottom of the first pressure roller 4. In this embodiment, the gantry frame 3 is provided with a hanger 11 connected to the air knife 8 to fix the air knife 8.

[0025] The air knife 8 is connected to an external compressed air pipeline. A solenoid valve connected to the controller is installed on the compressed air pipeline. When the solenoid valve is opened, the head of the cut film 14 is kept below the first pressure roller 4 by the compressed air blown out by the air knife 8. After the first pressure roller 4 descends, it can ensure that the head of the film 14 is smoothly attached to the subsequently delivered PVC wood-plastic board, improving the film coating accuracy. Then the solenoid valve is closed to reduce energy consumption.

[0026] The above description is only a preferred embodiment of this utility model. For those skilled in the art, there will be changes in the specific implementation method and application scope based on the idea of ​​this utility model. The content of this specification should not be construed as a limitation of this utility model.

Claims

1. A film-coating device for PVC wood-plastic composite board production, used for film coating on PVC wood-plastic composite boards, characterized in that, include: The system includes a frame, a conveyor, a gantry frame, an unwinder, a controller, an air knife, a first pressure roller, a second pressure roller, and a cutter. The conveyor is horizontally mounted on the frame for conveying PVC wood-plastic composite sheets. The gantry frame is mounted on the frame and spans the conveyor. The unwinder is mounted on the gantry frame. The first pressure roller, the cutter, and the second pressure roller are arranged in a vertically movable manner within the gantry frame, arranged from back to front. The film is unwound from the unwinder and pressed downwards onto the PVC wood-plastic composite sheet delivered by the conveyor via the first pressure roller. The controller is connected to the conveyor and the unwinder for operation control. The air knife is suspended within the gantry frame and located behind the first pressure roller, with its air outlet pointing obliquely downwards towards the bottom of the first pressure roller.

2. The coating device for PVC wood-plastic composite board production according to claim 1, characterized in that, The frame is provided with a bracket that extends upward to one side below the first pressure roller, and the bracket is provided with a photoelectric sensor pointing to the conveying path of the PVC wood-plastic board.

3. The film-coating device for PVC wood-plastic composite board production according to claim 2, characterized in that, The photoelectric sensor is connected to the controller for signal transmission.

4. The coating device for PVC wood-plastic composite board production according to claim 1, characterized in that, The gantry frame is equipped with lifting drive devices that correspond one-to-one with the first pressure roller, the second pressure roller, and the cutter.

5. The coating device for PVC wood-plastic composite board production according to claim 4, characterized in that, The lifting drive device uses a cylinder, and the controller is connected to the lifting drive device to control the lifting.

6. The coating apparatus for PVC wood-plastic composite board production according to claim 1, characterized in that, The gantry frame is equipped with a suspension rod connected to the air knife.

7. The coating device for PVC wood-plastic composite board production according to claim 1, characterized in that, The conveyor is either a belt conveyor or a chain conveyor.

8. The coating apparatus for PVC wood-plastic composite board production according to claim 1, characterized in that, The air knife is connected to a compressed air pipeline, and a solenoid valve connected to the controller is installed on the compressed air pipeline.

Images