A surface treatment device for PET sheet production capable of being turned over

Abstract

This utility model discloses a surface treatment device for PET sheet production that can be flipped, relating to the field of PET sheet production technology. It includes a treatment box, within which a spray pipe is rotatably mounted. A nozzle is located at the bottom of the spray pipe. The treatment box is equipped with a swing drive component for driving the spray pipe to rotate, thereby increasing the spraying range of the nozzle. A spray box is located at the top of the treatment box, and a connecting pipe is located on one side of the spray box. One end of the connecting pipe is connected to the spray pipe, and a water pump is also mounted on the connecting pipe. By starting a first motor, the output end of the first motor drives a worm gear to rotate. Since the worm gear meshes with a worm wheel, the rotation of the worm gear drives the worm wheel to rotate. The worm wheel is fixedly connected to a rotating shaft, thus causing the rotating shaft to rotate synchronously. The rotating shaft drives a rectangular plate and the PET sheet fixed on the rectangular plate to rotate around the rotating shaft, thereby flipping the PET sheet and facilitating multi-sided spraying of the PET sheet.

Description

Technical Field

[0001] This utility model relates to the field of PET sheet production technology, specifically to a surface treatment device for PET sheet production that can be flipped. Background Technology

[0002] Polyethylene terephthalate (PET) sheets are widely used in food packaging, electronic films, medical devices, and solar backsheets due to their excellent mechanical properties, transparency, chemical stability, and recyclability. However, PET material itself has a low surface energy (approximately 40-50 mN / m) and is chemically inert, resulting in poor adhesion to inks, adhesives, and coatings. Therefore, the PET surface must be modified before subsequent processing (such as printing, coating, lamination, or metallization) to improve its wettability and adhesive properties.

[0003] Chinese patent publication number CN218796752U discloses a surface treatment device for PET sheet production, including a spraying treatment box, spraying pipes, connecting pipes, and a rotating mechanism. The rotating mechanism allows the two spraying pipes to rotate in opposite directions, thereby enabling the spraying pipes to better spray the PET sheet and facilitate the spraying of the PET sheet surface. The moving mechanism allows the spraying pipes to slide on the outside of the connecting pipe, and the two spraying pipes move in opposite directions, thereby increasing the spraying range of the spraying pipes on the PET sheet and making the spraying more uniform.

[0004] In use, the aforementioned patent document describes a method that utilizes the coordinated action of a rotating mechanism and a moving mechanism to drive two sets of spray nozzles to rotate in opposite directions and achieve axial displacement, thereby expanding the spray coverage area on the PET sheet surface and improving coating uniformity. However, this solution can only achieve spraying operations on one side of the PET sheet. When other surfaces need to be treated, manual intervention is still required for posture adjustment, leading to a reduction in spraying efficiency. Utility Model Content

[0005] To address the aforementioned issues, a surface treatment apparatus for PET sheet production that can be flipped is provided. By incorporating a flipping component for driving the clamped PET sheet to flip, the technical problem of inconvenience in spraying other surfaces of the PET sheet is solved.

[0006] To address the problems of existing technologies, this utility model provides a surface treatment device for PET sheet production that can be flipped, including a treatment box. A spray pipe is rotatably mounted inside the treatment box, and a nozzle is mounted at the bottom of the spray pipe. A swing drive component is mounted on the treatment box to drive the spray pipe to rotate and increase the spraying range of the nozzle. A spray box is mounted on the top of the treatment box, and a connecting pipe is mounted on one side of the spray box. One end of the connecting pipe is connected to the spray pipe, and a water pump is mounted on the connecting pipe. A fixed plate is also mounted inside the treatment box, and a movable plate is movably mounted on one side of the fixed plate. A threaded drive component is mounted on the treatment box to drive the movable plate to move. A rectangular plate is mounted on one side of both the fixed plate and the movable plate via a rotating shaft. A clamping assembly for clamping the PET sheet is mounted inside the rectangular plate. A flipping component for driving the clamped PET sheet to flip is mounted on the other side of the fixed plate. A collection box is also mounted inside the treatment box.

[0007] Preferably, the flipping component includes a worm gear, an extension frame, a worm, and a first motor; one end of the rotating shaft extends outward through one side of the moving plate, and the worm gear is disposed at the extended end of the rotating shaft; the extension frame is disposed on the side of the moving plate away from the rectangular plate; the worm is vertically disposed inside the extension frame, and the worm meshes with the worm gear; the first motor is disposed at the top of the extension frame, and the output end of the first motor is connected to one end of the worm.

[0008] Preferably, the clamping assembly includes a movable rod, a pressure plate, a pull plate, and a spring; the movable rod is movably disposed on the top of the rectangular plate; the pressure plate is disposed at one end of the movable rod; the pull plate is disposed at the other end of the movable rod; the spring is sleeved on the movable rod, one end of the spring abuts against the rectangular plate, and the other end of the spring abuts against the top of the pressure plate.

[0009] Preferably, the swing drive component includes a connecting rod, a rotating plate, and a second motor; the connecting rod is disposed at one end of the spray pipe, and one end of the connecting rod extends outward through one side of the treatment box; the rotating plate is disposed at the extended end of the connecting rod; the second motor is disposed on the inner wall of the treatment box, and a rotating disk is disposed at the output end of the second motor, a guide post is disposed on one side of the rotating disk, and an arc-shaped groove for the guide post to move is disposed on the rotating plate.

[0010] Preferably, the threaded drive component includes a connecting block, a threaded rod, and a guide rod; the connecting block is disposed at the bottom of the movable plate; the threaded rod is threaded onto the processing box, one end of the threaded rod is connected to one side of the connecting block, and the other end of the threaded rod is provided with a turntable; the guide rod is disposed on the movable plate on both sides of the threaded rod, and one end of the guide rod is provided with a limit plate.

[0011] Preferably, a limiting slider is provided on one side of the moving plate, and a limiting groove is provided on the inner wall of the processing box for the limiting slider to move.

[0012] The advantages of this utility model compared to the prior art are:

[0013] 1. By starting the first motor, the output end of the first motor drives the worm gear to rotate. Since the worm gear meshes with the worm wheel, the rotation of the worm gear drives the worm wheel to rotate. The worm wheel is fixedly connected to the rotating shaft, so the rotating shaft rotates synchronously. The rotating shaft drives the rectangular plate and the PET sheet fixed on the rectangular plate to rotate around the rotating shaft, thereby flipping the PET sheet and facilitating multi-sided spraying of the PET sheet.

[0014] 2. By starting the second motor, the output of the second motor drives the rotating disk to rotate. As the rotating disk rotates, the guide column moves synchronously with it. The guide column is embedded in the arc-shaped groove of the rotating plate. When the guide column slides in the arc-shaped groove, it pushes the rotating plate to swing around the axis of the connecting rod. The swing of the rotating plate is transmitted to the spray pipe through the connecting rod, realizing the left and right swing of the spray pipe and the nozzle, thereby expanding the spraying range and ensuring uniform coverage of the PET sheet surface. Attached Figure Description

[0015] Figure 1 This is a perspective view of a surface treatment device for PET sheet production that can be flipped, viewed from the first angle.

[0016] Figure 2 This is a cross-sectional view of a surface treatment device for PET sheet production that can be flipped, viewed from the front.

[0017] Figure 3 This is a three-dimensional sectional view of the regulating box in a surface treatment device for the production of PET sheets that can be flipped.

[0018] Figure 4 This is a front view of the regulating box, support block, and support base in a surface treatment device for the production of PET sheets that can be flipped.

[0019] Figure 5 This is a three-dimensional sectional view of a mounting base in a surface treatment device for the production of PET sheets that can be flipped.

[0020] Figure 6 This is a cross-sectional view of the mounting base in a surface treatment device for the production of PET sheets that can be flipped, viewed from the front.

[0021] Figure 7 This is a perspective view of a surface treatment device for PET sheet production that can be flipped, viewed from a second perspective.

[0022] The following are the labels in the diagram: 1. Processing box; 2. Spraying pipe; 21. Connecting rod; 22. Rotating plate; 23. Second motor; 24. Rotating disk; 25. Guide column; 3. Spray nozzle; 4. Spraying box; 5. Connecting pipe; 6. Water pump; 7. Moving plate; 71. Connecting block; 72. Threaded rod; 73. Turntable; 74. Guide rod; 75. Limiting plate; 8. Fixing plate; 9. Rectangular plate; 91. Worm gear; 92. Extension frame; 93. Worm; 94. First motor; 10. Clamping assembly; 101. Movable rod; 102. Pressure plate; 103. Pull plate; 104. Spring; 11. Collection box. Detailed Implementation

[0023] To further understand the features, technical means, and specific objectives and functions achieved by this utility model, the following detailed description of this utility model is provided in conjunction with the accompanying drawings and specific embodiments.

[0024] See Figures 1 to 7 As shown, this utility model provides a surface treatment device for PET sheet production that can be flipped, including a treatment box 1, a spray pipe 2 rotatably arranged inside the treatment box 1, a nozzle 3 arranged at the bottom of the spray pipe 2, a swing drive component for driving the spray pipe 2 to rotate to increase the spraying range of the nozzle 3 on the treatment box 1, a spray box 4 arranged at the top of the treatment box 1, a connecting pipe 5 arranged on one side of the spray box 4, one end of the connecting pipe 5 being connected to the spray pipe 2, a water pump 6 also arranged on the connecting pipe 5, a fixed plate 8 arranged inside the treatment box 1, a movable plate 7 movably arranged on one side of the fixed plate 8, a threaded drive component for driving the movable plate 7 to move on the treatment box 1, a rectangular plate 9 arranged on one side of both the fixed plate 8 and the movable plate 7 via a rotating shaft, a clamping component 10 for clamping the PET sheet arranged inside the rectangular plate 9, a flipping component for driving the clamped PET sheet to flip on the other side of the fixed plate 8, and a collection box 11 arranged inside the treatment box 1.

[0025] The position of the moving plate 7 is adjusted according to the size of the PET sheet using a threaded drive component. The PET sheet is then placed on the rectangular plate 9 of the fixed plate 8 and the moving plate 7, and fixed by the clamping assembly 10. The water pump 6 is started, and the spraying liquid is delivered from the spraying tank 4 to the nozzle 3 via the connecting pipe 5. The oscillating drive component is then activated, causing the spraying pipe 2 to rotate, expanding the spraying range and ensuring uniform coverage of the PET sheet surface. When other sides of the PET sheet need to be sprayed, the flipping component is activated, causing the clamped PET sheet to flip, thus enabling multi-sided spraying of the PET sheet.

[0026] See Figures 4 to 5As shown, the flipping component includes a worm gear 91, an extension frame 92, a worm 93, and a first motor 94; one end of the rotating shaft extends outward through one side of the moving plate 7, and the worm gear 91 is located at the extended end of the rotating shaft; the extension frame 92 is located on the side of the moving plate 7 away from the rectangular plate 9; the worm 93 is vertically arranged inside the extension frame 92, and the worm 93 meshes with the worm gear 91; the first motor 94 is located at the top of the extension frame 92, and the output end of the first motor 94 is connected to one end of the worm 93.

[0027] After the clamping assembly 10 fixes the PET sheet, the first motor 94 is started, and the output end of the first motor 94 drives the worm gear 93 to rotate. Since the worm gear 93 meshes with the worm wheel 91, the rotation of the worm gear 93 drives the worm wheel 91 to rotate. The worm wheel 91 is fixedly connected to the rotating shaft, so the rotating shaft rotates synchronously. The rotating shaft drives the rectangular plate 9 and the PET sheet fixed on the rectangular plate 9 to rotate around the rotating shaft, thereby flipping the PET sheet and facilitating multi-sided spraying of the PET sheet.

[0028] See Figure 6 As shown, the clamping assembly 10 includes a movable rod 101, a pressure plate 102, a pull plate 103, and a spring 104; the movable rod 101 is movably disposed on the top of the rectangular plate 9; the pressure plate 102 is disposed at one end of the movable rod 101; the pull plate 103 is disposed at the other end of the movable rod 101; the spring 104 is sleeved on the movable rod 101, one end of the spring 104 abuts against the rectangular plate 9, and the other end of the spring 104 abuts against the top of the pressure plate 102.

[0029] Pulling the pull plate 103 moves the movable rod 101, which in turn moves the pressure plate 102, which in turn presses the spring 104 on the movable rod 101. At this point, the PET sheet is placed in the space between the rectangular plate 9 and the pressure plate 102. Then, releasing the pull plate 103 allows the spring 104 to recover its elastic deformation, causing the pressure plate 102 to press down on the PET sheet, thus fixing it in place and preventing displacement during flipping or spraying.

[0030] See Figure 7 As shown, the swing drive component includes a connecting rod 21, a rotating plate 22, and a second motor 23. The connecting rod 21 is located at one end of the spray pipe 2, and one end of the connecting rod 21 extends outward through one side of the treatment box 1. The rotating plate 22 is located at the extended end of the connecting rod 21. The second motor 23 is located on the inner wall of the treatment box 1, and a rotating disk 24 is provided at the output end of the second motor 23. A guide post 25 is provided on one side of the rotating disk 24, and an arc-shaped groove is provided on the rotating plate 22 for the guide post 25 to move.

[0031] By activating the second motor 23, the output of the second motor 23 drives the rotating disk 24 to rotate. As the rotating disk 24 rotates, the guide post 25 moves synchronously with it. The guide post 25 is embedded in the arc-shaped groove of the rotating plate 22. When the guide post 25 slides within the arc-shaped groove, it pushes the rotating plate 22 to swing around the axis of the connecting rod 21. The swing of the rotating plate 22 is transmitted to the spray pipe 2 through the connecting rod 21, enabling the spray pipe 2 and the nozzle 3 to swing left and right, thereby expanding the spraying range and ensuring uniform coverage of the PET sheet surface.

[0032] See Figure 3 As shown, the threaded drive component includes a connecting block 71, a threaded rod 72, and a guide rod 74; the connecting block 71 is disposed at the bottom of the movable plate 7; the threaded rod 72 is threaded onto the processing box 1, one end of the threaded rod 72 is connected to one side of the connecting block 71, and the other end of the threaded rod 72 is provided with a turntable 73; the guide rod 74 is disposed on the movable plate 7 on both sides of the threaded rod 72, and one end of the guide rod 74 is provided with a limit plate 75.

[0033] By rotating the turntable 73, the threaded rod 72 is driven to rotate, and the rotation of the threaded rod 72 drives the moving plate 7 to move. When the moving plate 7 moves, it will drive the guide rod 74 to move, which improves the stability of the moving plate 7. Thus, the distance between the fixed plate 8 and the moving plate 7 can be adjusted according to the size of the PET sheet, so as to accommodate different sizes of PET sheets for clamping.

[0034] See Figure 3 and Figure 4 As shown, a limit slider is provided on one side of the movable plate 7, and a limit groove is provided on the inner wall of the processing box 1 for the limit slider to move.

[0035] When the rotation of the threaded rod 72 drives the moving plate 7 to move, the moving plate 7 will move in the limiting groove through the limiting slider on one side, thereby improving the stability of the movement of the moving plate 7.

[0036] The position of the moving plate 7 is adjusted according to the size of the PET sheet using a threaded drive component. The PET sheet is then placed on the rectangular plate 9 of the fixed plate 8 and the moving plate 7. By pulling the pull plate 103, the moving rod 101 moves, causing the pressure plate 102 to move and press the spring 104 on the moving rod 101. At this point, the PET sheet is placed in the space between the rectangular plate 9 and the pressure plate 102. Then, the pull plate 103 is released, and the spring 104 recovers its elastic deformation, causing the pressure plate 102 to press down on the PET sheet, thus fixing the PET sheet and preventing it from flipping or shifting during spraying. The water pump 6 is started, and the spraying liquid is delivered from the spray box 4 to the nozzle 3 through the connecting pipe 5. The second motor 23 is started, and its output drives the rotating disk 24 to rotate. As the rotating disk 24 rotates, the guide column 25 moves synchronously with it. The guide post 25 is embedded in the arc-shaped groove of the rotating plate 22. When the guide post 25 slides in the arc-shaped groove, it pushes the rotating plate 22 to swing around the axis of the connecting rod 21. The swing of the rotating plate 22 is transmitted to the spray pipe 2 through the connecting rod 21, realizing the left and right swing of the spray pipe 2 and the nozzle 3, thereby expanding the spraying range and ensuring uniform coverage of the PET sheet surface. When it is necessary to spray other sides of the PET sheet, the first motor 94 is started, and the output end of the first motor 94 drives the worm gear 93 to rotate. Since the worm gear 93 is engaged with the worm wheel 91, the rotation of the worm gear 93 drives the worm wheel 91 to rotate. The worm wheel 91 is fixedly connected to the rotating shaft, so the rotating shaft rotates synchronously. The rotating shaft drives the rectangular plate 9 and the PET sheet fixed on the rectangular plate 9 to rotate around the rotating shaft, thereby flipping the PET sheet and facilitating the spraying of multiple sides of the PET sheet.

[0037] The above embodiments only illustrate one or more implementations of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of this utility model. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the appended claims.

Claims

1. A surface treatment apparatus for producing PET sheets that can be flipped, characterized in that, The system includes a processing box (1), inside which a spray pipe (2) is rotatably mounted. A nozzle (3) is mounted at the bottom of the spray pipe (2). The processing box (1) is equipped with a swing drive component for driving the spray pipe (2) to rotate and increase the spraying range of the nozzle (3). A spray box (4) is mounted on the top of the processing box (1). A connecting pipe (5) is mounted on one side of the spray box (4). One end of the connecting pipe (5) is connected to the spray pipe (2). A water pump (6) is also mounted on the connecting pipe (5). The processing box (1) is also equipped with... There is a fixed plate (8), and a movable plate (7) is movably provided on one side of the fixed plate (8). A threaded drive component for driving the movable plate (7) to move is provided on the processing box (1). A rectangular plate (9) is provided on one side of both the fixed plate (8) and the movable plate (7) via a rotating shaft. A clamping component (10) for clamping PET sheets is provided in the rectangular plate (9). A flipping component for driving the clamped PET sheets to flip is provided on the other side of the fixed plate (8). A collection box (11) is also provided in the processing box (1). The swing drive component includes a connecting rod (21), a rotating plate (22), and a second motor (23); The connecting rod (21) is located at one end of the spray pipe (2), and one end of the connecting rod (21) extends outward through one side of the treatment box (1); The rotating plate (22) is disposed at the extension end of the connecting rod (21); The second motor (23) is installed on the inner wall of the processing box (1). The output end of the second motor (23) is provided with a rotating disk (24). A guide post (25) is provided on one side of the rotating disk (24). An arc-shaped groove for the guide post (25) to move is provided on the rotating plate (22).

2. The surface treatment apparatus for producing PET sheets that can be flipped according to claim 1, characterized in that, The flipping component includes a worm gear (91), an extension frame (92), a worm (93), and a first motor (94). One end of the rotating shaft extends outward through one side of the movable plate (7), and the worm gear (91) is located at the extended end of the rotating shaft. The extension frame (92) is located on the side of the movable plate (7) away from the rectangular plate (9); The worm (93) is vertically arranged inside the extension frame (92), and the worm (93) meshes with the worm wheel (91); The first motor (94) is located on the top of the extension frame (92), and the output end of the first motor (94) is connected to one end of the worm (93).

3. The surface treatment apparatus for producing PET sheets that can be flipped according to claim 1, characterized in that, The clamping assembly (10) includes a movable rod (101), a pressure plate (102), a pull plate (103), and a spring (104). The movable rod (101) is movably mounted on the top of the rectangular plate (9); The pressure plate (102) is disposed at one end of the movable rod (101); The pull plate (103) is located at the other end of the movable rod (101); The spring (104) is sleeved on the movable rod (101), one end of the spring (104) abuts against the rectangular plate (9), and the other end of the spring (104) abuts against the top of the pressure plate (102).

4. The surface treatment apparatus for producing PET sheets that can be flipped according to claim 1, characterized in that, The threaded drive component includes a connecting block (71), a threaded rod (72), and a guide rod (74). The connecting block (71) is located at the bottom of the movable plate (7); The threaded rod (72) is threaded onto the processing box (1). One end of the threaded rod (72) is connected to one side of the connecting block (71), and the other end of the threaded rod (72) is provided with a turntable (73). The guide rod (74) is located on both sides of the threaded rod (72) on the movable plate (7), and a limit plate (75) is provided at one end of the guide rod (74).

5. The surface treatment apparatus for producing PET sheets that can be flipped according to claim 1, characterized in that, A limiting slider is provided on one side of the moving plate (7), and a limiting groove is provided on the inner wall of the processing box (1) for the limiting slider to move.

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