A stamping-resistant polyvinyl chloride coated board

Abstract

The present invention relates to a stamping-resistant polyvinyl chloride coated board, which includes a board. The top and bottom of the outer surface of the board are respectively adhered with an upper coating layer and a lower coating layer. The edge part of the upper coating layer extends to the outer edge frame of the board and is in a semi-wrapped state. The bonding mode of the lower coating layer to the board is the same as that of the upper coating layer to the board. The edge parts of the upper coating layer and the lower coating layer are in a staggered stacking state. The upper coating layer and the lower coating layer are made of polyvinyl chloride material. Among them, the outer edges of the upper coating layer and the lower coating layer are in a state of alternating superposition, which has better sealing performance and anti-detachment effect, overall improving the self-strength of the board, having better impact resistance, effectively protecting the structural integrity of the board, and extending the service life of the board. At the same time, the polyvinyl chloride coating layer can play a good anti-corrosion effect and effectively protect the printed pattern on the surface of the board.

Description

Technical Field

[0001] The present application relates to the technical field of plate coating, and in particular to a punch-resistant polyvinyl chloride coated plate. Background Art

[0002] The boards used in daily life are often damaged by external forces due to being in the natural environment for a long time. In order to improve the strength of the boards, a film is applied to the surface of the boards to improve the structural strength and corrosion resistance of the boards, thereby achieving the effect of extending the use period and reducing the cost of use. Traditional boards often use a single-layer film, which makes the film layer prone to cracking and debonding at the edges, resulting in the boards being directly exposed to the natural environment. In addition, a large amount of manpower is required in the production process of the film-coated boards, resulting in excessively high production costs and reduced production efficiency. In this regard, the present application document proposes a stamping-resistant polyvinyl chloride film-coated board, which aims to solve the above-mentioned problems. Summary of the Invention

[0003] The present application proposes a punch-resistant polyvinyl chloride film-coated board with the advantages of better sealing and anti-shedding, which is used to solve the problem of insufficient strength of the film-coated board with a single layer of film.

[0004] To achieve the above-mentioned purpose, the present application adopts the following technical solution: a stamped polyvinyl chloride film-coated board, comprising a board, wherein the top and bottom of the outer surface of the board are respectively adhered with an upper film layer and a lower film layer, the edge portion of the upper film layer extends to the outer edge frame of the board and is in a semi-wrapped state, the bonding method of the lower film layer to the board is the same as the bonding method of the upper film layer to the board, and the edge portions of the upper film layer and the lower film layer are in an interlaced and stacked state.

[0005] Specifically, the upper film layer and the lower film layer are made of polyvinyl chloride material, and the thickness of the upper film layer and the lower film layer is 0.1mm-0.35mm.

[0006] Specifically, the vacuum coating device includes a vacuum chamber, and limiting sleeves are fixedly installed on the top and bottom of the vacuum chamber, and the limiting sleeves have a limiting effect on the movement of the air pressure device.

[0007] Specifically, a limiting groove is provided on the top of the limiting sleeve near both sides, an air pressure device is movably installed inside the limiting sleeve, a rib is fixedly installed on the back of the vacuum chamber, a pressure regulating device is fixedly installed on the inner side of the rib, and the air pressure device is connected to the pressure regulating device.

[0008] Furthermore, the limiting sleeve passes through the vacuum chamber and is connected to the inner cavity. The bottom of the air pressure device extends into the inner cavity of the vacuum chamber. A support frame is fixedly installed on the bottom of the vacuum chamber, and a base is fixedly installed on the bottom of the support frame.

[0009] Furthermore, the vacuum chamber includes a film laminating chamber, with extension chambers provided at both the top and bottom of the film laminating chamber. A chamber door is provided on the front of the film laminating chamber, allowing an operator to open the chamber door to take out or place a board, or perform operations on the board.

[0010] Specifically, feeding holes are provided at both left and right ends of the film laminating chamber. Telescopic machines are fixedly installed at positions near the front and back on the top and bottom of the film laminating chamber. The output shaft of the telescopic machine extends into the interior of the vacuum chamber, and a clamping bracket is fixedly installed at one end of the output shaft of the telescopic machine.

[0011] Specifically, the number of the clamping brackets is two, which are respectively placed at the top and bottom of the inner cavity of the film laminating chamber.

[0012] The board is placed inside.

[0013] Specifically, the film enters the interior of the film laminating chamber through the feeding holes.

[0014] Furthermore, the pneumatic device includes an upper pneumatic chamber. On both sides of the outer surface of the upper pneumatic chamber, there are first connecting shafts. One end of the first connecting shaft is movably sleeved with a dragging rod, and the dragging rod drives the upper pneumatic chamber to move up and down through dragging.

[0015] Specifically, one end of the dragging rod is movably sleeved with a pressure regulating device. The top of the upper pneumatic chamber is fixedly sleeved with a pneumatic tube, and the top of the pneumatic tube is connected to the pressure regulating device. A lower pneumatic chamber is movably sleeved at a position near the bottom of the outer surface of the upper pneumatic chamber. A perforated fixing plate is fixedly installed at a position near the bottom of the inner wall of the upper pneumatic chamber. A power machine is fixedly installed at the bottom of the perforated fixing plate. After the power machine outputs torque, it drives the lower pneumatic chamber to rotate through the transmission effect of the perforated connecting plate.

[0016] Specifically, a suction cup is clamped at a position near the bottom of the outer surface of the lower pneumatic chamber. The suction cup is in contact with the outer surface of the board and is fixedly connected to the board when suction is generated.

[0017] Specifically, a perforated connecting plate is fixedly installed at a position near the middle of the inner wall of the lower pneumatic chamber. A travel seat is movably installed at a position near the bottom of the inner cavity of the lower pneumatic chamber. When the travel seat moves upward, negative pressure is generated and acts on the suction cup to make it generate suction.

[0018] Specifically, a spring is clamped at the bottom of the perforated connecting plate. The bottom of the spring is connected to the top of the travel seat. A closed outer ring is fixedly installed at a position near the outer circle of the top of the travel seat. Inner air guide holes are provided on the outer surface of the closed outer ring near the travel seat, and outer air guide holes are provided on the outer surface of the lower pneumatic chamber.

[0019] Specifically, one end of the output shaft of the power machine is fixedly connected to the top of the perforated connecting plate.

[0020] Further, the inner air guide hole and the outer air guide hole correspond to each other in the longitudinal direction, the sealing outer ring is in contact with the inner wall of the lower air pressure chamber, and the outer air guide hole is sealed by the sealing outer ring in the initial state.

[0021] Further, the outer surface of the stroke seat is provided with a structure which cooperates with the inner bottom of the lower air pressure chamber in the initial state.

[0022] Further, the pressure regulating device includes an arc-shaped limiting frame. One side of the outer surface of the arc-shaped limiting frame is fixedly installed with a mounting frame. A servo motor is fixedly installed on the front surface of the mounting frame. One end of the output shaft of the servo motor is fixedly installed with a driving gear. A driving hole is opened at a position near the middle of the inner ring of the arc-shaped limiting frame. Connecting pipe protrusions are fixedly installed at positions near both ends of the inner ring of the arc-shaped limiting frame. The connecting pipe protrusions communicate with the inner cavity of the arc-shaped limiting frame. One end of the connecting pipe protrusion is connected to the air pressure pipe through a pipeline. Arc-shaped grooves are opened at positions near both ends of both sides of the arc-shaped limiting frame. An arc-shaped partition chamber is arranged at a position near the middle of the outer ring of the arc-shaped limiting frame. A two-way air pump is fixedly installed on the back surface of the arc-shaped partition chamber. One end of the output shaft of the two-way air pump extends into the interior of the arc-shaped partition chamber. An adjusting device is movably installed inside the arc-shaped limiting frame.

[0023] Further, the adjusting device includes an arc-shaped sealing pipe. An arc-shaped rack is arranged at a position near the middle of the inner ring of the arc-shaped sealing pipe. An air inlet hole is opened at a position below the middle of the outer ring of the arc-shaped sealing pipe. A partition plate is fixedly installed on the inner wall of the arc-shaped sealing pipe. The partition plate extends out through the air inlet hole. Communication holes are opened at positions near both ends of the inner ring of the arc-shaped sealing pipe. Second connecting shafts are fixedly installed at positions near both ends of both sides of the arc-shaped sealing pipe. The second connecting shafts extend out through the arc-shaped grooves and are movably sleeved with the dragging rods.

[0024] Further, the partition plate extends into the interior of the arc-shaped partition chamber and divides the inner cavity of the arc-shaped limiting frame into two regions. The arc-shaped rack extends out from the inside of the driving hole and meshes with the driving gear. The communication holes correspond to the connecting pipe protrusions.

[0025] In addition, the present invention also discloses a film laminating method for a stamping-resistant polyvinyl chloride film laminating board, including the following steps:

[0026] S1. Open the bin door and place the board to be film laminated at the position between the air pressure devices;

[0027] S2. Start the two-way air pump and run it for a period of time. The suction cups above adsorb and fix the board;

[0028] S3. Drive the adjusting device to rotate clockwise to separate the air pressure devices above and below the board. The board moves with the suction cups above. At the same time, the film is fed into the lower part of the board through the feeding hole;

[0029] S4. Start the telescoping machine below the film covering bin to drive the clamping bracket to clamp the film covering. Start the two-way air pump again to extract the gas in the space above the film covering in the inner cavity of the film covering bin and form a vacuum. Under the action of negative pressure, the film covering is adsorbed on the lower surface of the board and adheres tightly. Then the two-way air pump stops;

[0030] S5. Start the two-way air pump to send air into the internal arc-shaped sealing pipe. The contact suction cup adsorbs and fixes the board, and restores the vacuum area inside the film covering bin. The operator opens the bin door to cut off the excess film covering, and closes the bin door after cutting;

[0031] S6. Drive the adjustment device to rotate counterclockwise to separate the air pressure devices above and below the board. The board moves synchronously with the air pressure device below under the action of gravity. At the same time, the film covering is fed above the board through the feeding hole;

[0032] S7. Start the two-way air pump to make the suction cup below adsorb and fix the board, and extract the gas in the space below the film covering in the inner cavity of the film covering bin and form a vacuum. Under the action of negative pressure, the film covering is adsorbed on the upper surface of the board and adheres tightly. Then the two-way air pump stops;

[0033] S8. The operator opens the bin door again and cuts off the excess film covering.

[0034] S9. When multiple layers of film covering are required, repeat the above steps.

[0035] The present application has the following beneficial effects.

[0036] For this polyvinyl chloride film-covered board, the film covering layers are alternately covered on the front and back sides of the board, and the outer edge parts of the film covering layers are alternately covered. The film covering layer fixed in this way has better sealing performance and anti-detachment effect, which overall improves the self-strength of the board after film covering, has better impact resistance. At the same time, the polyvinyl chloride film covering layer can achieve a good anti-corrosion effect, which can effectively protect the printed pattern on the surface of the board. And during the production process, the operator does not need to take out the board from the inside of the film covering bin. Through the negative pressure generated by the two-way air pump, the separation effect of the partition board and the air pressure device alternately adsorb and fix the board, so as to achieve the effect of alternately covering the front and back sides of the film covering and the board, improve the automation and production efficiency of the device, and reduce the use cost of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] The drawings forming a part of the specification depict the embodiments disclosed in the present application and, together with the specification, are used to explain the principles disclosed in the present application.

[0038] Referring to the drawings, the present disclosure can be more clearly understood from the following detailed description, wherein:

[0039] Figure 1 is a schematic structural diagram of the board after film covering of the present invention;

[0040] Figure 2 Cross-sectional view of the structure of the plate after film covering of the present invention;

[0041] Figure 3 Structure of the present invention Figure 2 Enlarged schematic view of location A in the structure of the present invention;

[0042] Figure 4 Structure diagram of the present invention;

[0043] Figure 5 Vacuum chamber diagram of the structure of the present invention;

[0044] Figure 6 Cross-sectional view of the vacuum chamber of the structure of the present invention;

[0045] Figure 7 Pneumatic device diagram of the structure of the present invention;

[0046] Figure 8 Cross-sectional view of the pneumatic device of the structure of the present invention;

[0047] Figure 9 Structure of the present invention Figure 5 Enlarged schematic view of location A in the structure of the present invention;

[0048] Figure 10 Pressure regulating device diagram of the structure of the present invention;

[0049] Figure 11 Cross-sectional view of the pressure regulating device of the structure of the present invention;

[0050] Figure 12 Adjusting device diagram of the structure of the present invention;

[0051] Figure 13 Cross-sectional view of the adjusting device of the structure of the present invention;

[0052] Figure 14 Operation flow chart of the structure of the present invention.

[0053] In the figure: 10, sheet material; 101, upper film layer; 102, lower film layer; 1, vacuum chamber; 11, film laminating chamber; 12, extension chamber; 13, chamber door; 14, feeding hole; 15, telescopic machine; 16, clamping bracket; 2, limiting sleeve; 3, limiting groove; 4, pneumatic device; 41, upper pneumatic chamber; 42, first connecting shaft; 43, dragging rod; 44, pneumatic tube; 45, lower pneumatic chamber; 46, perforated fixing plate; 47, power machine; 48, suction cup; 49, perforated connecting plate; 401, stroke seat; 402, spring; 403, closed outer ring; 404, inner air guide hole; 405, outer air guide hole; 5, rib plate; 6, pressure regulating device; 61, arc-shaped limiting frame; 62, mounting frame; 63, servo motor; 64, driving gear; 65, driving hole; 66, connecting pipe protrusion; 67, arc-shaped groove; 68, arc-shaped partition chamber; 69, two-way air pump; 7, support frame; 8, base; 9, adjusting device; 91, arc-shaped sealing pipe; 92, arc-shaped rack; 93, air inlet hole; 94, partition plate; 95, communication hole; 96, second connecting shaft. Detailed implementation mode

[0054] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0055] A stamping-resistant polyvinyl chloride film-coated board, please refer to Figures 1 - 3 , including a sheet material 10, with an upper film layer 101 and a lower film layer 102 respectively adhered to the top and bottom of the outer surface of the sheet material 10. The edge part of the upper film layer 10 extends to the outer edge frame of the sheet material 10 and is in a semi-wrapped state. The bonding mode of the lower film layer 102 to the sheet material 10 is the same as that of the upper film layer 10 to the sheet material 10, and the edge parts of the upper film layer 10 and the lower film layer 102 are in a state of staggered stacking.

[0056] Please refer to Figures 1 - 3 , the upper film layer 10 and the lower film layer 102 are made of polyvinyl chloride material, and the thickness of the upper film layer 10 and the lower film layer 102 is 0.1 mm - 0.35 mm.

[0057] The laminated board with this structure adopts the method of double-sided multi-layer lamination. The outer edges of the upper lamination layer 10 and the lower lamination layer 102 are in a state of alternating superposition, with better sealing performance and anti-detachment effect. It overall improves the self-strength of the board 10, has better impact resistance, can effectively protect the structural integrity of the board 10, extends the service life of the board 10. At the same time, the polyvinyl chloride lamination layer can play a good anti-corrosion effect and can effectively protect the printed pattern on the surface of the board 10.

[0058] For the vacuum lamination device, please refer to Figures 4 - 7 , which includes a vacuum chamber 1. Limit sleeves 2 are fixedly installed at both the top and bottom of the vacuum chamber 1, and the limit sleeves 2 play a limiting effect on the movement of the pneumatic device 4.

[0059] Please refer to Figures 4 - 7 , limit grooves 3 are opened at positions near both sides of the top of the limit sleeve 2. A pneumatic device 4 is movably installed inside the limit sleeve 2. A rib plate 5 is fixedly installed on the back of the vacuum chamber 1, and a pressure regulating device 6 is fixedly installed inside the rib plate 5. The pneumatic device 4 is connected to the pressure regulating device 6.

[0060] Please refer to Figures 4 - 7 , the limit sleeve 2 penetrates through the vacuum chamber 1 and the inner cavities are connected. The bottom of the pneumatic device 4 extends into the inner cavity of the vacuum chamber 1. A support frame 7 is fixedly installed at the bottom of the vacuum chamber 1, and a base 8 is fixedly installed at the bottom of the support frame 7.

[0061] Please refer to Figures 7 - 9 , the vacuum chamber 1 includes a lamination chamber 11. Extension chambers 12 are provided at both the top and bottom of the lamination chamber 11. A chamber door 13 is provided on the front of the lamination chamber 11. Operators can open the chamber door 13 to take out or place the board 10, or operate on the board 10.

[0062] Please refer to Figures 7 - 9 , feeding holes 14 are opened at both left and right ends of the lamination chamber 11. Telescopic machines 15 are fixedly installed at positions near the front and back of the top and bottom of the lamination chamber 11. The output shafts of the telescopic machines 15 extend into the interior of the vacuum chamber 1, and a clamping bracket 16 is fixedly installed at one end of the output shaft of the telescopic machine 15.

[0063] Please refer to Figures 7 - 9 , the number of the clamping brackets 16 is two, which are respectively placed at the top and bottom of the inner cavity of the lamination chamber 11.

[0064] Please refer to Figures 7 - 9 , the board 10 is placed inside the 11.

[0065] Please refer to Figures 7 - 9 , the lamination enters the interior of the lamination chamber 11 through the feeding holes 14.

[0066] Please refer to Figures 7 - 9 As shown in Figures 7 - 9 , the pneumatic device 4 includes an upper pneumatic chamber 41. On both sides of the outer surface of the upper pneumatic chamber 41, there are first connecting shafts 42. One end of the first connecting shaft 42 is movably sleeved with a dragging rod 43. The dragging rod 43 drives the upper pneumatic chamber 41 to move up and down through dragging.

[0067] Please refer to Figures 7 - 9 As shown in Figures 7 - 9 , one end of the dragging rod 43 is movably sleeved with a pressure regulating device 6. The top of the upper pneumatic chamber 41 is fixedly sleeved with a pneumatic tube 44. The top of the pneumatic tube 44 is connected to the pressure regulating device 6. A lower pneumatic chamber 45 is movably sleeved at a position near the bottom of the outer surface of the upper pneumatic chamber 41. A perforated fixing plate 46 is fixedly installed at a position near the bottom of the inner wall of the upper pneumatic chamber 41. A power machine 47 is fixedly installed at the bottom of the perforated fixing plate 46. After the power machine 47 outputs torque, it drives the lower pneumatic chamber 45 to rotate through the transmission effect of a perforated connecting plate 49.

[0068] Please refer to Figures 6 - 9 As shown in Figures 6 - 9 , a suction cup 48 is clamped at a position near the bottom of the outer surface of the lower pneumatic chamber 45. The suction cup 48 is in contact with the outer surface of the plate 10 and is fixedly connected to the plate 10 when suction is generated.

[0069] Please refer to Figures 7 - 9 As shown in Figures 7 - 9 , a perforated connecting plate 49 is fixedly installed at a position near the middle of the inner wall of the lower pneumatic chamber 45. A travel seat 401 is movably installed at a position near the bottom of the inner cavity of the lower pneumatic chamber 45. When the travel seat 401 moves upward, negative pressure will be generated and act on the suction cup 48 to make it generate suction.

[0070] Please refer to Figures 7 - 9 As shown in Figures 7 - 9 , a spring 402 is clamped at the bottom of the perforated connecting plate 49. The bottom of the spring 402 is connected to the top of the travel seat 401. A closed outer ring 403 is fixedly installed at a position near the outer circle of the top of the travel seat 401. Inner air guide holes 404 are opened on the outer surface of the closed outer ring 403 near the travel seat 401. Outer air guide holes 405 are opened on the outer surface of the lower pneumatic chamber 45.

[0071] Please refer to Figures 7 - 9 One end of the output shaft of the power machine 47 is fixedly connected to the top of the perforated connecting plate 49.

[0072] Please refer to Figures 7 - 9 As shown in Figures 7 - 9 , the inner air guide holes 404 and the outer air guide holes 405 correspond to each other in the longitudinal direction. The closed outer ring 403 is in contact with the inner wall of the lower pneumatic chamber 45. The outer air guide holes 405 are closed by the closed outer ring 403 in the initial state.

[0073] When the internal air pressure in the lower air pressure chamber 45 decreases, the travel seat 401 and the closed outer ring 403 are displaced to generate a negative pressure inside the suction cup 48 and achieve the adsorption of the plate 10. At the same time, the travel seat 401 and the closed outer ring 403 move upward against the elastic force of the spring 402. If the two-way air pump 69 operates for too long, causing the inner air guide hole 404 and the outer air guide hole 405 to enter the corresponding states in advance, at this time, the gas in the inner cavity of the film covering chamber 11 will enter the inside of the lower air pressure chamber 45 through the inner air guide hole 404 and the outer air guide hole 405, increasing the air pressure inside the lower air pressure chamber 45. The elastic force of the spring 402 presses the travel seat 401 and the closed outer ring 403 downward by a certain distance and balances the air pressure force and the spring elastic force received by the travel seat 401, causing the inner air guide hole 404 and the outer air guide hole 405 to disengage from the corresponding states and be blocked again. During this process, the closed outer ring 403 will not directly reset, resulting in the suction cup 48 losing the adsorption of the plate 10 and causing the plate 10 to separate and affecting the subsequent film covering operation, avoiding the problem that the suction cup 48 loses pressure and cannot adsorb and fix the plate 10 during the operation of the two-way air pump 69, and improving the reliability of the device.

[0074] Please refer to Figure 8 and Figures 10 - 11 , the pressure regulating device 6 includes an arc-shaped limiting frame 61. One side of the outer surface of the arc-shaped limiting frame 61 is fixedly installed with a mounting frame 62. The front of the mounting frame 62 is fixedly installed with a servo motor 63. One end of the output shaft of the servo motor 63 is fixedly installed with a driving gear 64. A driving hole 65 is opened at a position near the middle of the inner circle of the arc-shaped limiting frame 61. Connecting pipe protrusions 66 are fixedly installed at positions near both ends of the inner circle of the arc-shaped limiting frame 61. The connecting pipe protrusions 66 are communicated with the inner cavity of the arc-shaped limiting frame 61. One end of the connecting pipe protrusion 66 is connected to the air pressure pipe 44 through a pipeline. Arc-shaped grooves 67 are opened at positions near both ends on both sides of the arc-shaped limiting frame 61. An arc-shaped partition chamber 68 is arranged at a position near the middle of the outer circle of the arc-shaped limiting frame 61. The back of the arc-shaped partition chamber 68 is fixedly installed with a two-way air pump 69. One end of the output shaft of the two-way air pump 69 extends into the inside of the arc-shaped partition chamber 68. An adjusting device 9 is movably installed inside the arc-shaped limiting frame 61.

[0075] Please refer to Figure 8 and Figures 11 - 13 , the adjusting device 9 includes an arc-shaped sealing pipe 91. An arc-shaped rack 92 is arranged at a position near the middle of the inner circle of the arc-shaped sealing pipe 91. An air inlet hole 93 is opened at a position below the middle of the outer circle of the arc-shaped sealing pipe 91. A partition plate 94 is fixedly installed on the inner wall of the arc-shaped sealing pipe 91. The partition plate 94 extends out through the air inlet hole 93. Communication holes 95 are opened at positions near both ends of the inner circle of the arc-shaped sealing pipe 91. Second connecting shafts 96 are fixedly installed at positions near both ends on both sides of the arc-shaped sealing pipe 91. The second connecting shafts 96 extend out through the arc-shaped grooves 67 and are movably sleeved with the drag rod 43.

[0076] Please refer to Figure 11 and Figure 13 The partition plate 94 extends into the interior of the arc-shaped partition bin 68 and divides the inner cavity of the arc-shaped limit frame 61 into two regions. The arc-shaped rack 92 extends out of the interior of the driving hole 65 and meshes with the driving gear 64, and the communication hole 95 corresponds to the connecting pipe protrusion 66.

[0077] The power machine 47 can drive the perforated connecting plate 49 to drive the lower air pressure bin 45 to rotate. When the operator cuts the excess upper film layer 10 or lower film layer 102 on the outer edge of the plate 10, if the operator is not convenient to cut the upper film layer 10 or lower film layer 102 near the inner side of the film bin 11, the pressure regulating device 6 can be controlled to operate, so that the suction cup 48 adsorbs and fixes the plate 10, and the suction cup 48 rotates and drives the plate 10 to rotate synchronously, so as to facilitate the operator to cut the upper film layer 10 or lower film layer 102 on the inner side of the film bin 11, improving the convenience of the device during use.

[0078] A film covering method for a stamping-resistant polyvinyl chloride film-covered board, as Figure 14 follows:

[0079] S1. Open the bin door 13 and place the plate 10 to be film-covered at the position between the air pressure devices 4;

[0080] S2. Start the two-way air pump 69 and run for a period of time, and the upper suction cup 48 adsorbs and fixes the plate 10;

[0081] S3. Drive the adjusting device 9 to rotate clockwise to separate the air pressure devices 4 above and below the plate 10. The plate 10 moves with the upper suction cup 48, and at the same time, the film is fed into the lower part of the plate 10 through the feeding hole 14;

[0082] S4. Start the telescopic machine 15 below the film bin 11 to drive the clamping bracket 16 to clamp the film. Start the two-way air pump 69 again to pump out the gas in the space above the film in the inner cavity of the film bin 11 to form a vacuum. Under the action of negative pressure, the film is adsorbed on the lower surface of the plate 10 and adheres tightly, and the two-way air pump 69 stops;

[0083] S5. Start the two-way air pump 69 to send air into the interior of the arc-shaped sealing pipe 91, release the adsorption and fixation of the suction cup 48 and the plate 10, and restore the vacuum area inside the film bin 11. The operator opens the bin door 13 to cut the excess film, and closes the bin door 13 after cutting;

[0084] S6. Drive the adjusting device 9 to rotate counterclockwise to separate the air pressure devices 4 above and below the plate 10. The plate 10 moves synchronously with the lower air pressure device 4 under the action of gravity, and at the same time, the film is fed into the upper part of the plate 10 through the feeding hole 14;

[0085] S7. Start the two-way air pump 69 to make the suction cups 48 below adsorb and fix the board 10, and extract the gas in the space below the film in the inner cavity of the film covering bin 11 to form a vacuum. Under the action of negative pressure, the film is adsorbed on the upper surface of the board 10 and is in close contact, and then the two-way air pump 69 stops running;

[0086] S8. The operator opens the bin door 13 again and cuts off the excess film.

[0087] S9. When multiple layers of film covering are required, repeat the above steps.

[0088] In the initial state, the dragging rods 43 are all in the initial state. At this time, the distance between the air pressure devices 4 reaches the minimum. The operator opens the hatch 13 and places the plate 10 to be coated with film at the position between the air pressure devices 4. And at this time, the partition plate 94 is located below the output end of the two-way air pump 69. The two-way air pump 69 operates for a period of time and generates negative pressure. Due to the cooperation effect of the partition plate 94 and the arc-shaped partition bin 68, the inner cavity of the arc-shaped sealing tube 91 is divided into upper and lower parts. The negative pressure generated by the two-way air pump 69 acts on the inside of the connecting tube protrusion 66 located above through the upper half of the inner cavity of the arc-shaped sealing tube 91, and acts on the inside of the air pressure device 4 located above the plate 10 through the air pressure tube 44. When a negative pressure effect is generated inside the air pressure device 4, the travel seat 401 moves upward under the action of the negative pressure, overcoming the elastic force of the spring 402, so that the internal pressure of the suction cup 48 decreases and a negative pressure is generated to realize the adsorption of the plate 10, producing a fixing effect. At this time, the servo motor 63 moves and drives the entire adjusting device 9 to rotate clockwise inside the arc-shaped limiting frame 61 through the transmission of the driving gear 64. At this time, the position of the second connecting shaft 96 shifts with the rotation of the entire adjusting device 9. The dragging rod 43 inclines and produces a pulling effect on the first connecting shaft 42, so that the air pressure device 4 located above the plate 10 moves upward, and the air pressure device 4 located below the plate 10 moves downward. Since the air pressure device 4 located above the plate 10 is in a state of being adsorbed and fixed to the plate 10 at this time, the plate 10 moves together with the air pressure device 4 located above. At this time, the coating film is fed into the coating film bin 11 through the feeding hole 14. The coating film passes out from another feeding hole 14, and the coating film is located below the plate 10. At this time, the telescopic machine 15 located below the coating film bin 11 is started. The telescopic machine 15 drives the clamping bracket 16 located below the inner cavity of the coating film bin 11 to move upward until the two clamping brackets 16 clamp and fix the coating film. At this time, the two-way air pump 69 is started again and continuously generates negative pressure in the upper area of the inner cavity of the arc-shaped sealing tube 91, so that the travel seat 401 and the closed outer ring 403 continuously move upward, and the inner air guide hole 404 and the outer air guide hole 405 are in a corresponding state, so as to extract the gas located above the coating film inside the coating film bin 11 and form a vacuum area. Under this action, the coating film adsorbs and adheres tightly to the bottom surface of the plate 10, thus completing one coating. After completing one coating, the servo motor 63 drives the entire adjusting device 9 to reset through the driving gear 64. At this time, the air pressure devices 4 located above and below the plate 10 clamp and fix the plate 10. At the same time, the two-way air pump 69 pressurizes the inside of the arc-shaped limiting frame 61 in the reverse direction. The gas enters the lower air pressure chamber 45 through the connecting tube protrusion 66 and the air pressure tube 44, and the internal air pressure thereof gradually increases, so that the closed outer ring 403 overcomes the elastic force of the spring 402 and extends out from the bottom of the lower air pressure chamber 45, so that the gas is discharged through the inner air guide hole 404, thus releasing the adsorption and fixing effect of the suction cup 48 on the plate 10.Meanwhile, gas enters the interior of the film covering chamber 11 through the outer air guide holes 405 to relieve the vacuum effect. The operator opens the chamber door 13, uses a cutter to cut off the excess film along the outer edge of the sheet 10, closes the chamber door 13 after cutting, and the servo motor 63 drives the entire adjusting device 9 to rotate counterclockwise inside the arc-shaped limiting frame 61 through the transmission of the driving gear 64. Since neither of the two suction cups 48 generates suction at this time, the sheet 10 moves together with the pneumatic device 4 located below under the action of gravity. At this time, the film is fed again, and the film is located above the sheet 10. Then, the telescoping machine 15 located above the film covering chamber 11 is started, and the telescoping machine 15 drives the clamping bracket 16 located above the inner cavity of the film covering chamber 11 to move downward until the two clamping brackets 16 clamp and fix the film. At this time, the two-way air pump 69 is started. Since the adjusting device 9 rotated counterclockwise before, the partition plate 94 is located above the output end of the two-way air pump 69, so that the negative pressure generated by the two-way air pump 69 acts on the inner cavity of the lower half of the arc-shaped sealing pipe 91 and acts on the inner connecting pipe protrusion 66 located below, so that the suction cup 48 below the sheet 10 generates an adsorption and fixing effect on the sheet 10. Through the same steps, the gas located below the film inside the film covering chamber 11 is pumped out to form a vacuum area, and the film adsorbs and adheres tightly to the top surface of the sheet 10, thus completing the secondary film covering. By repeating the above steps, the film covering can be cycled on the top and bottom of the sheet 10 in an alternating manner. During the whole process, the sheet 10 does not need to be taken out of the film covering chamber 11, which improves the convenience of using the device. Moreover, during the whole film covering process, the front and back sides of the sheet 10 can be alternately film covered without too much manual intervention, which improves the automation of the device and reduces the use cost of the device.

[0089] The usage method of the present invention is as follows:

[0090] The operator opens the hatch door 13 and places the sheet 10 to be film-coated at the position between the pneumatic devices 4. At this time, the partition plate 94 is located below the output end of the two-way air pump 69. The two-way air pump 69 operates for a period of time and generates negative pressure. Due to the cooperation effect between the partition plate 94 and the arc-shaped partition bin 68, the inner cavity of the arc-shaped sealing tube 91 is divided into upper and lower parts. The negative pressure generated by the two-way air pump 69 acts on the inside of the connecting tube protrusion 66 located above through the upper half of the inner cavity of the arc-shaped sealing tube 91, and acts on the inside of the pneumatic device 4 located above the sheet 10 through the pneumatic tube 44. When a negative pressure effect is generated inside the pneumatic device 4, the travel seat 401 moves upward under the action of the negative pressure, overcoming the elastic force of the spring 402, causing the internal pressure of the suction cup 48 to decrease and generating negative pressure to achieve the adsorption of the sheet 10, producing a fixing effect. At this time, the servo motor 63 moves and drives the entire adjusting device 9 to rotate clockwise inside the arc-shaped limiting frame 61 through the transmission of the driving gear 64. At this time, the position of the second connecting shaft 96 shifts with the rotation of the entire adjusting device 9, the dragging rod 43 tilts and produces a pulling effect on the first connecting shaft 42, causing the pneumatic device 4 located above the sheet 10 to move upward, and the pneumatic device 4 located below the sheet 10 to move downward. Since the pneumatic device 4 located above the sheet 10 is in a state of being adsorbed and fixed to the sheet 10 at this time, the sheet 10 moves together with the pneumatic device 4 located above. At this time, the film is fed into the inside of the film-coating bin 11 through the feeding hole 14. The film passes through another feeding hole 14 and is located below the sheet 10. At this time, the telescopic machine 15 located below the film-coating bin 11 is started, and the telescopic machine 15 drives the clamping bracket 16 located below the inner cavity of the film-coating bin 11 to move upward until the two clamping brackets 16 clamp and fix the film. At this time, the two-way air pump 69 is started again and continuously generates negative pressure in the upper region of the inner cavity of the arc-shaped sealing tube 91, causing the travel seat 401 and the closed outer ring 403 to continuously move upward, and making the inner air guide hole 404 and the outer air guide hole 405 in a corresponding state, so as to extract the gas located above the film inside the film-coating bin 11 and form a vacuum area. Under this action, the film adsorbs and adheres tightly to the bottom surface of the sheet 10, thus completing one film-coating. After completing one film-coating, the servo motor 63 drives the entire adjusting device 9 to reset through the driving gear 64. At this time, the pneumatic devices 4 located above and below the sheet 10 clamp and fix the sheet 10. At the same time, the two-way air pump 69 pressurizes the inside of the arc-shaped limiting frame 61 in the reverse direction, and the gas enters the inside of the lower pneumatic chamber 45 through the connecting tube protrusion 66 and the pneumatic tube 44, gradually increasing the internal pressure thereof, causing the closed outer ring 403 to extend from the bottom of the lower pneumatic chamber 45, overcoming the elastic force of the spring 402, so that the gas is discharged through the inner air guide hole 404 to release the adsorption and fixing effect of the suction cup 48 on the sheet 10. At the same time, the gas enters the inside of the film-coating bin 11 through the outer air guide hole 405 to release the vacuum effect. The operator opens the hatch door 13 and uses a cutter to cut off the excess film along the outer edge of the sheet 10.After the cutting, the chamber door 13 is closed. The movement of the servo motor 63 drives the entire adjusting device 9 to rotate counterclockwise inside the arc-shaped limit frame 61 through the transmission of the driving gear 64. Since neither of the two suction cups 48 generates suction at this time, the sheet 10 moves together with the pneumatic device 4 located below under the action of gravity. At this time, the film is fed again, and the film is located above the sheet 10. Then, the telescopic machine 15 located above the film covering chamber 11 is started. The telescopic machine 15 drives the clamping bracket 16 located above the inner cavity of the film covering chamber 11 to move downward until the two clamping brackets 16 clamp and fix the film. At this time, the two-way air pump 69 is started. Since the adjusting device 9 rotated counterclockwise before, the partition plate 94 is located above the output end of the two-way air pump 69, so that the negative pressure generated by the two-way air pump 69 acts on the inner cavity of the lower half of the arc-shaped sealing pipe 91 and acts inside the connecting pipe protrusion 66 located below, so that the suction cup 48 below the sheet 10 generates an adsorption and fixation effect on the sheet 10. Through the same steps, the gas located below the film in the film covering chamber 11 is pumped out to form a vacuum area, and the film is adsorbed and closely attached to the top surface of the sheet 10, thus completing the secondary film covering. Repeating the above steps, the film covering can be cycled on the top and bottom of the sheet 10 in an alternating manner.,

Claims

1. A vacuum laminating device, characterized in that: The vacuum laminating device includes a vacuum chamber (1). At the top and bottom of the vacuum chamber (1), limiting sleeves (2) are fixedly installed. At positions near both sides of the top of the limiting sleeve (2), limiting grooves (3) are provided. An air pressure device (4) is movably installed inside the limiting sleeve (2). A rib plate (5) is fixedly installed on the back of the vacuum chamber (1). A pressure regulating device (6) is fixedly installed on the inner side of the rib plate (5). The air pressure device (4) is connected to the pressure regulating device (6). The limiting sleeve (2) penetrates the vacuum chamber (1) and its inner cavity is communicated. The bottom of the air pressure device (4) extends into the inner cavity of the vacuum chamber (1). A support frame (7) is fixedly installed at the bottom of the vacuum chamber (1). A base (8) is fixedly installed at the bottom of the support frame (7). The vacuum chamber (1) includes a laminating chamber (11). Extension chambers (12) are provided at the top and bottom of the laminating chamber (11). A chamber door (13) is provided on the front of the laminating chamber (11). Feeding holes (14) are provided at both left and right ends of the laminating chamber (11). Telescopic machines (15) are fixedly installed at positions near the front and back of the top and bottom of the laminating chamber (11). The output shaft of the telescopic machine (15) extends into the interior of the vacuum chamber (1). One end of the output shaft of the telescopic machine (15) is fixedly installed with a clamping bracket (16). The number of the clamping brackets (16) is two, which are respectively placed at the top and bottom of the inner cavity of the laminating chamber (11). A sheet (10) is placed inside the laminating chamber (11). The air pressure device (4) includes an upper air pressure chamber (41). On both sides of the outer surface of the upper air pressure chamber (41), first connecting shafts (42) are provided. One end of the first connecting shaft (42) is movably sleeved with a dragging rod (43). One end of the dragging rod (43) is movably sleeved with the pressure regulating device (6). An air pressure pipe (44) is fixedly sleeved on the top of the upper air pressure chamber (41). The top of the air pressure pipe (44) is connected to the pressure regulating device (6). A lower air pressure chamber (45) is movably sleeved at a position near the bottom of the outer surface of the upper air pressure chamber (41). A perforated fixing plate (46) is fixedly installed at a position near the bottom of the inner wall of the upper air pressure chamber (41). A power machine (47) is fixedly installed at the bottom of the perforated fixing plate (46). A suction cup (48) is clamped at a position near the bottom of the outer surface of the lower air pressure chamber (45). A perforated connecting plate (49) is fixedly installed at a position near the middle of the inner wall of the lower air pressure chamber (45). A travel seat (401) is movably installed at a position near the bottom of the inner cavity of the lower air pressure chamber (45). A spring (402) is clamped at the bottom of the perforated connecting plate (49). The bottom of the spring (402) is connected to the top of the travel seat (401). A closed outer ring (403) is fixedly installed at a position near the outer circle of the top of the travel seat (401). Inner air guide holes (404) are provided on the outer surface of the closed outer ring (403) near the travel seat (401).The outer surface of the lower air pressure chamber (45) is provided with an outer air guide hole (405), and one end of the output shaft of the power machine (47) is fixedly connected to the top of the perforated connecting plate (49).

2. A vacuum laminating device according to claim 1, characterized in that, The inner air guide hole (404) corresponds to the outer air guide hole (405) in the longitudinal direction. The closed outer ring (403) is in contact with the inner wall of the lower air pressure chamber (45), and the outer air guide hole (405) is closed by the closed outer ring (403) in the initial state.

3. A vacuum laminating device according to claim 2, characterized in that, The pressure regulating device (6) includes an arc-shaped limiting frame (61). One side of the outer surface of the arc-shaped limiting frame (61) is fixedly installed with a mounting frame (62). The front of the mounting frame (62) is fixedly installed with a servo motor (63). One end of the output shaft of the servo motor (63) is fixedly installed with a driving gear (64). A driving hole (65) is opened at a position near the middle of the inner ring of the arc-shaped limiting frame (61). Connecting pipe protrusions (66) are fixedly installed at positions near both ends of the inner ring of the arc-shaped limiting frame (61). The connecting pipe protrusions (66) communicate with the inner cavity of the arc-shaped limiting frame (61). One end of the connecting pipe protrusion (66) is connected to the air pressure pipe (44) through a pipeline. Arc-shaped grooves (67) are opened at positions near both ends of both sides of the arc-shaped limiting frame (61). An arc-shaped partition chamber (68) is arranged at a position near the middle of the outer ring of the arc-shaped limiting frame (61). A two-way air pump (69) is fixedly installed on the back of the arc-shaped partition chamber (68). One end of the output shaft of the two-way air pump (69) extends into the interior of the arc-shaped partition chamber (68). An adjusting device (9) is movably installed inside the arc-shaped limiting frame (61).

4. A vacuum laminating device according to claim 3, characterized in that, The adjusting device (9) includes an arc-shaped sealing pipe (91). An arc-shaped rack (92) is arranged at a position near the middle of the inner ring of the arc-shaped sealing pipe (91). An air inlet hole (93) is opened at a position below the middle of the outer ring of the arc-shaped sealing pipe (91). A partition plate (94) is fixedly installed on the inner wall of the arc-shaped sealing pipe (91). The partition plate (94) extends out through the air inlet hole (93). Communication holes (95) are opened at positions near both ends of the inner ring of the arc-shaped sealing pipe (91). Second connecting shafts (96) are fixedly installed at positions near both ends of both sides of the arc-shaped sealing pipe (91). The second connecting shafts (96) extend out through the arc-shaped grooves (67) and are movably sleeved with the dragging rod (43).

5. A vacuum laminating device according to claim 4, characterized in that, The partition plate (94) extends into the interior of the arc-shaped partition chamber (68) and divides the inner cavity of the arc-shaped limiting frame (61) into two regions. The arc-shaped rack (92) extends out from the inside of the driving hole (65) and meshes with the driving gear (64). The communication holes (95) correspond to the connecting pipe protrusions (66).

6. A preparation method of a stamping-resistant polyvinyl chloride coated board, which is prepared by using the vacuum coating device described in any one of claims 1-5, is characterized in that, It includes the following steps: S1. Place the plate (10) inside the vacuum film laminating device; S2. Start the vacuum film laminating device and fix the plate (10) by negative pressure; S3. Raise the height of the plate (10), and the film passes through the bottom of the plate (10), and at the same time, fix the film; S4. Use vacuum to make the film fit the bottom surface of the plate (10); S5. Send air into the interior to eliminate the negative pressure and vacuum areas, and the operator cuts off the excess film. S6. After reducing the height of the board (10), fix the board (10) by negative pressure, and pass the film from the top of the board (10), and fix the film at the same time; S7. Use vacuum to bond the film to the top surface of the board (10); S8. Eliminate the negative pressure and vacuum areas again, and the operator cuts off the excess film; S9. When double-sided multi-layer film covering is required, repeat the above steps.

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