Moisture-proof PVC (polyvinyl chloride) plate laminating device

Abstract

The utility model discloses a moisture-proof PVC plate film covering device which comprises a conveying mechanism, a dust removal mechanism, a discharging mechanism, a pressing mechanism and a cutting mechanism, the conveying mechanism comprises a conveying rack, and a conveying belt is placed on the conveying rack; the dust removal mechanism is located above the conveying belt and comprises a dust removal roller, and dust removal airflow can be generated on the outer wall of the dust removal roller; the discharging mechanism is located above the conveying belt and comprises a discharging roller. The material pressing mechanism is located above the conveying belt and comprises a material pressing roller, and negative pressure airflow can be generated on the outer wall of the material pressing roller. The cutting mechanism is located above the conveying belt. When the PVC plate is conveyed, dust on the plate is blown to the two sides through dust removal airflow blown out of the air holes of the dust removal rollers and is continuously blown to the two sides for multiple times, and sufficient dust removal of the surface of the PVC plate is achieved; and after film covering is completed, negative pressure suction force is generated in the material pressing roller, then the film is adsorbed and positioned through the second air holes, the tail end of the film cannot fall off after cutting, and film covering of the next PVC plate is facilitated.

Description

Technical Field

[0001] This utility model belongs to the field of PVC board processing technology, specifically relating to a moisture-proof PVC board coating device. Background Technology

[0002] PVC sheets are made from polyvinyl chloride (PVC). They have high hardness and strength, stable chemical properties, are corrosion-resistant and non-flammable, and are widely used in building materials, packaging, pharmaceuticals, chemicals and other industries.

[0003] Lamination is an important step in the processing of moisture-proof PVC sheets. Lamination is used to prevent the surface of the sheet material from being contaminated and damaged by the outside world, to make it waterproof and moisture-proof, to extend the shelf life and quality of the product, and to provide a certain aesthetic effect.

[0004] Currently, laminating machines lack effective dust removal during lamination, affecting lamination quality. To address this issue, a PVC sheet laminating machine (CN217531884U) was developed, proposing that "during the conveying process, a blower operates to remove dust from the surface of the PVC sheet, keeping it clean," and "when the PVC sheet is conveyed to the third conveying mechanism, the cutting mechanism cuts the film to complete the lamination of the PVC sheet." However, this laminating machine blows dust from one side, which is insufficient for adequate dust removal from the PVC sheet surface. Furthermore, after laminating and cutting the film, the machine lacks positioning of the film end, requiring manual repositioning of the film before laminating the next PVC sheet, which is very inconvenient. Utility Model Content

[0005] This invention provides a moisture-proof PVC board coating device. During the conveying of PVC boards, the dust removal airflow blown from the ventilation holes of the dust removal roller blows the dust on the board to both sides, and continues to blow to both sides multiple times to achieve thorough dust removal on the surface of the PVC board. After coating is completed, a negative pressure suction is generated in the pressure roller, and then the film is adsorbed and positioned through the second ventilation hole, so that it will not fall off at the end after cutting, which is beneficial for coating the next PVC board, thus solving the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a moisture-proof PVC board coating device, comprising a conveying mechanism, a dust removal mechanism, a feeding mechanism, a pressing mechanism, and a cutting mechanism. The conveying mechanism includes a conveyor frame on which a conveyor belt is placed. The dust removal mechanism is located above the conveyor belt and includes a dust removal roller located above the conveyor belt, the outer wall of which can generate a dust removal airflow. The feeding mechanism is located above the conveyor belt and behind the dust removal mechanism, and includes a feeding roller. The pressing mechanism is located above the conveyor belt and behind the feeding mechanism, and includes a pressing roller, the outer wall of which can generate a negative pressure airflow. The cutting mechanism is located above the conveyor belt and behind the pressing mechanism.

[0007] Preferably, the dust removal roller generates a dust removal airflow through a blowing mechanism, including a dust removal frame, on which a blower is mounted. The dust removal roller has a hollow interior and an anti-slip roller sleeve on its outer wall. The anti-slip roller sleeve and the dust removal roller are provided with multiple rows of ventilation holes communicating with the inner cavity around the outer wall. Each row of ventilation holes is inclined, and the inclination directions of adjacent rows of ventilation holes are opposite. The shaft of the dust removal roller near the blowing mechanism is a shaft tube, which is connected to the blower through a rotary joint and a pipe.

[0008] Preferably, the height of the dust removal roller can be adjusted by a lifting mechanism, the lifting mechanism including a dust removal roller frame, the dust removal roller being rotatably mounted on the dust removal roller frame, and a first cylinder being mounted on the dust removal frame, the piston rod of the first cylinder passing through the dust removal frame and being fixedly connected to the dust removal roller frame.

[0009] Preferably, the dust removal roller frame is provided with a first guide rod, the first guide rod passes through the dust removal frame, and the dust removal frame is provided with a hole adapted to the first guide rod.

[0010] Preferably, the feeding roller is rotatably mounted on the feeding frame, and the feeding frame is equipped with a motor that drives the feeding roller to rotate.

[0011] Preferably, the feeding frame is also equipped with guide rollers.

[0012] Preferably, the pressing roller generates negative pressure airflow through a negative pressure mechanism, including a pressing frame, on which a negative pressure device is mounted. The pressing roller has a cavity inside and a uniform second air vent on its outer wall. The shaft of the pressing roller near the negative pressure device is a second shaft tube, and is connected to the air intake end of the negative pressure device through a second rotary joint and a second pipe.

[0013] Preferably, the height of the pressure roller can be adjusted by a lifting mechanism. The lifting mechanism includes a pressure roller frame and a second cylinder mounted on the pressure machine frame. The piston rod of the second cylinder passes through the pressure machine frame and is fixedly connected to the pressure roller frame. The pressure roller frame is provided with a second guide rod, which passes through the pressure machine frame. The pressure machine frame is provided with a hole that matches the second guide rod.

[0014] Preferably, the cutting mechanism includes a cutting frame, with a rodless guide cylinder located above the conveyor belt between the cutting frames. The rodless guide cylinder is equipped with a slide, and a third cylinder is fixed to the slide via a connector. A cutting blade is mounted on the piston rod end of the third cylinder.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. When the PVC sheet is being conveyed, the dust removal roller rolls under the action of the PVC sheet. The airflow from the ventilation holes blows the dust on the sheet to both sides. The multiple rows of ventilation holes can continuously and repeatedly blow the sheet to both sides while it is rolling, so as to achieve thorough dust removal from the surface of the PVC sheet.

[0017] 2. After lamination is completed and before film cutting, the negative pressure equipment generates negative pressure suction, which creates negative pressure suction inside the pressure roller. Then, the film is adsorbed and positioned through the second vent hole, so that it will not fall off at the end after cutting, which is beneficial for lamination of the next PVC board. Attached Figure Description

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

[0019] Figure 2 This is a side view of the dust removal mechanism of this utility model.

[0020] Figure 3 This is a schematic diagram of the cross-sectional structure of a row of vent holes of this utility model;

[0021] Figure 4 This is a side view of the feeding mechanism of this utility model;

[0022] Figure 5 This is a side view of the pressing mechanism of this utility model;

[0023] Figure 6 This is a side view of the cutting machine frame, rodless guide cylinder, and slide block of this utility model.

[0024] In the diagram: 1. Conveyor frame; 2. Conveyor belt; 3. Dust removal roller; 4. Feeding roller; 5. Pressing roller; 6. Dust removal frame; 7. Blower; 8. Anti-slip roller sleeve; 9. Vent hole; 10. Shaft tube; 11. Rotary joint; 12. Pipe; 13. Dust removal roller frame; 14. First cylinder; 15. First guide rod; 16. Feeding frame; 17. Motor; 18. Guide roller; 19. Pressing frame; 20. Negative pressure device; 21. Second vent hole; 22. Second shaft tube; 23. Second rotary joint; 24. Second pipe; 25. Pressing roller frame; 26. Second cylinder; 27. Second guide rod; 28. Cutting frame; 29. ​​Rodless guide rail cylinder; 30. Slide; 31. Third cylinder; 32. Cutting blade. Detailed Implementation

[0025] 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.

[0026] Please see Figure 1-6 This utility model provides a moisture-proof PVC board coating device, including a conveying mechanism, a dust removal mechanism, a feeding mechanism, a pressing mechanism, and a cutting mechanism. The conveying mechanism includes a conveyor frame 1, on which a conveyor belt 2 is placed. The dust removal mechanism is located above the conveyor belt 2 and includes a dust removal roller 3 located above the conveyor belt 2. The outer wall of the dust removal roller 3 can generate a dust removal airflow. The feeding mechanism is located above the conveyor belt 2 and behind the dust removal mechanism, and includes a feeding roller 4. The pressing mechanism is located above the conveyor belt 2 and behind the feeding mechanism, and includes a pressing roller 5. The outer wall of the pressure roller 5 can generate negative pressure airflow; the cutting mechanism is located above the conveyor belt 2 and behind the pressure mechanism; during film coating, the PVC sheet is conveyed to the right by the conveyor belt 2. When it is conveyed to the bottom of the dust removal roller 3, the dust removal roller 3 blows airflow to both sides to blow the dust on the sheet to both sides, so as to achieve sufficient dust removal on the surface of the PVC sheet; when the sheet passes under the pressure roller 5, the pressure roller 5 presses the film conveyed by the self-discharging roller 4 onto the surface of the sheet. Then, after the sheet is completely coated, the pressure roller 5 generates negative pressure suction to adsorb and position the film, so that it will not fall off at the end after cutting. The above operation is repeated to coat the next PVC sheet.

[0027] Specifically, the dust removal roller 3 generates a dust removal airflow through a blowing mechanism, including a dust removal frame 6, on which a blower 7 is mounted. The dust removal roller 3 has a hollow interior, and an anti-slip roller sleeve 8 is fitted onto its outer wall. Multiple rows of ventilation holes 9 communicating with the inner cavity are arranged around the outer wall of both the anti-slip roller sleeve 8 and the dust removal roller 3. Each row of ventilation holes 9 is inclined, and adjacent rows of ventilation holes 9 are inclined in opposite directions. The shaft of the dust removal roller 3 near the blowing mechanism is a shaft tube 10, which is connected to the blower 7 via a rotary joint 11 and a pipe 12. In this embodiment, the blower 7 blows out airflow, which is then transmitted through the pipe 12 and the rotary joint 11. The airflow from the shaft tube 10 is blown into the dust removal roller 3 and then out through the vent holes 9. Since the vent holes 9 are set at an angle and the directions of adjacent rows of vent holes 9 are opposite, when the dust removal roller 3 is driven by the anti-slip roller sleeve 8 to roll, the dust removal airflow blown out of the vent holes 9 blows the dust on the board to both sides. Moreover, the multiple rows of vent holes 9 can continuously and repeatedly blow the board to both sides during rolling, so as to achieve sufficient dust removal on the surface of the PVC board. The anti-slip roller sleeve 8 is set to facilitate the rotation of the dust removal roller 3 when the PVC board is transported, so as to realize rotational blowing. The design of the rotary joint 11 avoids interference between the rotation of the dust removal roller 3 and the airflow blown out by the dust removal mechanism.

[0028] Specifically, the height of the dust removal roller 3 can be adjusted by a lifting mechanism, which includes a dust removal roller frame 13. The dust removal roller 3 is rotatably mounted on the dust removal roller frame 13. A first cylinder 14 is mounted on the dust removal frame 6. The piston rod of the first cylinder 14 passes through the dust removal frame 6 and is fixedly connected to the dust removal roller frame 13. In this embodiment, the dust removal roller frame 13 and the dust removal roller 3 are raised and lowered by the first cylinder 14, which can handle plates of different thicknesses.

[0029] Specifically, the dust removal roller frame 13 is provided with a first guide rod 15, which passes through the dust removal frame 6. The dust removal frame 6 is provided with a hole that matches the first guide rod 15. In this embodiment, the first guide rod 15 can provide guidance for the lifting and lowering of the dust removal roller frame 13, thereby improving the accuracy after lifting and lowering adjustment.

[0030] Specifically, the feeding roller 4 is rotatably mounted on the feeding frame 16, and the feeding frame 16 is equipped with a motor 17 that drives the feeding roller 4 to rotate; in this embodiment, continuous feeding is achieved by driving the feeding roller 4 to rotate through the motor 17.

[0031] Specifically, the feeding frame 16 is also equipped with a guide roller 18; in this embodiment, the guide roller 18 provides guidance for the continuous feeding of the feeding roller 4, making it easier to introduce the material under the pressure roller 5.

[0032] Specifically, the pressure roller 5 generates negative pressure airflow through a negative pressure mechanism, including a pressure frame 19, on which a negative pressure device 20 is mounted. The pressure roller 5 has a cavity inside and uniform second vent holes 21 on its outer wall. The shaft of the pressure roller 5 near the negative pressure device 20 is a second shaft tube 22, which is connected to the suction end of the negative pressure device 20 through a second rotary joint 23 and a second pipe 24. In this embodiment, after the film is coated but before the film is cut, the negative pressure device 20 generates negative pressure suction, and through the second pipe 24, the second rotary joint 23, and the second shaft tube 22, negative pressure suction is generated inside the pressure roller 5. Then, the film is adsorbed and positioned through the second vent holes 21, so that it will not fall off at the end after cutting. The above operation is repeated to coat the next PVC sheet.

[0033] Specifically, the height of the pressure roller 5 can be adjusted by a lifting mechanism. The lifting mechanism includes a pressure roller frame 25 and a second cylinder 26 mounted on the pressure frame 19. The piston rod of the second cylinder 26 passes through the pressure frame 19 and is fixedly connected to the pressure roller frame 25. The pressure roller frame 25 is provided with a second guide rod 27, which passes through the pressure frame 19. The pressure frame 19 is provided with a hole that matches the second guide rod 27. In this embodiment, the pressure roller frame 25 and the pressure roller 5 are raised and lowered by the second cylinder 26, which can handle plates of different thicknesses. The second guide rod 27 can provide guidance for the raising and lowering of the pressure roller frame 25, improving the accuracy after the raising and lowering adjustment.

[0034] Specifically, the cutting mechanism includes a cutting frame 28, with rodless guide cylinders 29 mounted between the cutting frames 28 and positioned above the conveyor belt 2. A slide block 30 is mounted on the rodless guide cylinder 29, and a third cylinder 31 is fixed to the slide block 30 via a connector. A cutting blade 32 is mounted on the piston rod end of the third cylinder 31. In this embodiment, after the sheet material is fully coated, the rodless guide cylinder 29 drives the slide block 30 to slide laterally, and drives the cutting blade 32 to cut the film. The third cylinder 31 can adjust the height of the cutting blade 32, enabling it to handle film-coated cutting of sheet materials of different thicknesses.

[0035] To facilitate understanding of the above-mentioned technical solutions of this utility model, the working principle or operation method of this utility model in actual process will be described in detail below.

[0036] Working principle: During lamination, the PVC sheet is conveyed to the right by the conveyor belt 2. When it reaches the bottom of the dust removal roller 3, the blower 7 blows out airflow, which is then blown into the dust removal roller 3 through the pipe 12, rotary joint 11, and shaft tube 10. The airflow then exits through the vent holes 9. Since the vent holes 9 are inclined and the directions of adjacent rows of vent holes 9 are opposite, the dust removal airflow blown out by the vent holes 9 blows the dust on the sheet to both sides when the dust removal roller 3 is rolled by the anti-slip roller sleeve 8 while the PVC sheet is being conveyed. Moreover, the multiple rows of vent holes 9 can continuously and repeatedly blow the sheet to both sides during the rolling process, achieving thorough dust removal from the surface of the PVC sheet.

[0037] When the board passes under the pressure roller 5, the pressure roller 5 presses the film conveyed by the self-feeding roller 4 onto the surface of the board. After the board is completely covered with film, the rodless guide cylinder 29 drives the slide 30 to slide laterally and drives the cutting blade 32 to cut the film. After the film is covered but before the film is cut, the negative pressure device 20 generates negative pressure suction and generates negative pressure suction inside the pressure roller 5 through the second pipe 24, the second rotary joint 23, and the second shaft tube 22. Then, the film is adsorbed and positioned through the second vent hole 21 and will not fall off at the end after cutting. The above operation is repeated to cover the next PVC board.

[0038] 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 moisture-proof PVC board coating device, comprising a conveying mechanism, a dust removal mechanism, a feeding mechanism, a pressing mechanism, and a cutting mechanism, characterized in that, The conveying mechanism includes a conveyor frame (1) on which a conveyor belt (2) is placed; the dust removal mechanism is located above the conveyor belt (2) and includes a dust removal roller (3) located above the conveyor belt (2), the outer wall of which can generate dust removal airflow; the feeding mechanism is located above the conveyor belt (2) and behind the dust removal mechanism, and includes a feeding roller (4); the pressing mechanism is located above the conveyor belt (2) and behind the feeding mechanism, and includes a pressing roller (5), the outer wall of which can generate negative pressure airflow; the cutting mechanism is located above the conveyor belt (2) and behind the pressing mechanism.

2. The moisture-proof PVC board coating device according to claim 1, characterized in that, The dust removal roller (3) generates dust removal airflow through the air blowing mechanism, including a dust removal frame (6), on which a blower (7) is mounted. The dust removal roller (3) has a cavity inside and an anti-slip roller sleeve (8) on its outer wall. The anti-slip roller sleeve (8) and the dust removal roller (3) are provided with multiple rows of ventilation holes (9) that connect to the inner cavity around the outer wall. Each row of ventilation holes (9) is inclined, and the adjacent rows of ventilation holes (9) are inclined in opposite directions. The shaft of the dust removal roller (3) near the air blowing mechanism is a shaft tube (10), and it is connected to the blower (7) through a rotary joint (11) and a pipe (12).

3. The moisture-proof PVC board coating device according to claim 2, characterized in that, The height of the dust removal roller (3) can be adjusted by a lifting mechanism. The lifting mechanism includes a dust removal roller frame (13). The dust removal roller (3) is rotatably mounted on the dust removal roller frame (13). A first cylinder (14) is mounted on the dust removal frame (6). The piston rod of the first cylinder (14) passes through the dust removal frame (6) and is fixedly connected to the dust removal roller frame (13).

4. The moisture-proof PVC board coating device according to claim 3, characterized in that, The dust removal roller frame (13) is provided with a first guide rod (15), which passes through the dust removal frame (6). The dust removal frame (6) is provided with a hole that matches the first guide rod (15).

5. A moisture-proof PVC board coating device according to claim 1, characterized in that, The feeding roller (4) is rotatably mounted on the feeding frame (16), and the feeding frame (16) is equipped with a motor (17) that drives the feeding roller (4) to rotate.

6. The moisture-proof PVC board coating device according to claim 5, characterized in that, The feeding frame (16) is also equipped with guide rollers (18).

7. A moisture-proof PVC board coating device according to claim 1, characterized in that, The pressure roller (5) generates negative pressure airflow through a negative pressure mechanism, including a pressure frame (19), on which a negative pressure device (20) is mounted. The pressure roller (5) has a cavity inside and a uniform second air vent (21) on its outer wall. The shaft of the pressure roller (5) near the negative pressure device (20) is a second shaft tube (22), and is connected to the suction end of the negative pressure device (20) through a second rotary joint (23) and a second pipe (24).

8. A moisture-proof PVC board coating device according to claim 7, characterized in that, The height of the pressure roller (5) can be adjusted by a lifting mechanism. The lifting mechanism includes a pressure roller frame (25) and a second cylinder (26) mounted on the pressure machine frame (19). The piston rod of the second cylinder (26) passes through the pressure machine frame (19) and is fixedly connected to the pressure roller frame (25). The pressure roller frame (25) is provided with a second guide rod (27). The second guide rod (27) passes through the pressure machine frame (19). The pressure machine frame (19) is provided with a hole that matches the second guide rod (27).

9. A moisture-proof PVC board coating device according to claim 1, characterized in that, The cutting mechanism includes a cutting frame (28), and a rodless guide cylinder (29) located above the conveyor belt (2) is installed between the cutting frames (28). A slide (30) is installed on the rodless guide cylinder (29), and a third cylinder (31) is fixed to the slide (30) by a connector. A cutting blade (32) is installed at the piston rod end of the third cylinder (31).

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