A drying mechanism for printing plastic film

Abstract

This utility model belongs to the field of plastic film processing technology, specifically a drying mechanism for plastic film printing, including a workbench with a drying box fixedly installed on the top of the workbench. This utility model provides a drying mechanism for plastic film printing, which, through the arrangement of a drying box, exhaust hood, negative pressure fan, connecting pipe, top exhaust pipe, variable frequency fan, exhaust pipe, waste gas treatment device, and activated carbon adsorption plate, generates waste gas during the plastic film printing drying process. When treating the waste gas, the installed exhaust hood and negative pressure fan can draw in the waste gas escaping from the inlets and outlets on both sides of the drying box. The drawn waste gas is discharged into the waste gas treatment device through the variable frequency fan installed on the top of the top exhaust pipe, so that the activated carbon adsorption plate installed inside the waste gas treatment device can filter the waste gas. The filtered gas can then be discharged through the exhaust pipe.

Description

Technical Field

[0001] This utility model belongs to the field of plastic film processing technology, specifically a drying mechanism for plastic film printing. Background Technology

[0002] Plastic film is a film made of polyvinyl chloride, polyethylene, polypropylene, polystyrene and other resins. It is lightweight and transparent, moisture-proof and antioxidant, airtight, tough and fold-resistant, and has a smooth surface. It can protect goods and reproduce their shape and color.

[0003] Existing drying equipment for plastic film printing generates a large amount of toxic gas during the drying process, which pollutes the workshop environment and affects the health of employees. At the same time, when extracting waste gas, the waste gas escapes from the inlet and outlet on both sides of the drying equipment, resulting in insufficient extraction.

[0004] Therefore, this utility model provides a drying mechanism for printing plastic films. Utility Model Content

[0005] In order to overcome the shortcomings of the existing technology and solve the problems raised in the background art.

[0006] The technical solution adopted by this utility model to solve its technical problem is as follows: A drying mechanism for printing plastic film according to this utility model includes a workbench, a drying box fixedly installed on the top of the workbench, exhaust hoods fixedly installed on the inlet and outlet on both sides of the drying box, a negative pressure fan fixedly installed on the top of the exhaust hood by bolts, a connecting pipe fixedly installed on the other end of the negative pressure fan, a top exhaust pipe fixedly installed on the other end of the connecting pipe, a variable frequency fan fixedly installed on the top of the top exhaust pipe, an exhaust pipe fixedly installed on the other end of the variable frequency fan, and the other end of the exhaust pipe fixedly installed on the side of a waste gas treatment device by a flange. An installation groove is opened on the side of the waste gas treatment device, an activated carbon adsorption plate is inserted into the installation groove, a sealing groove is opened on the side of the waste gas treatment device, a cover plate is fixedly installed on the inside of the sealing groove by bolts, and an exhaust pipe is fixedly installed on the other side of the waste gas treatment device.

[0007] As a further preferred embodiment of this technical solution, a guide device is fixedly installed on the top of the workbench, a cooling mechanism is fixedly installed on the top of the workbench, a cold air fan is fixedly installed inside the cooling mechanism, and a cooling roller is fixedly installed inside the cooling mechanism.

[0008] As a further preferred embodiment of this technical solution, the guiding device includes two mounting blocks. A threaded rod is rotatably connected inside the mounting block and passes through the top of the mounting block. A fixing rod is fixedly installed inside the other mounting block. A first bearing seat is threadedly connected to the surface of the threaded rod, and a second bearing seat is slidably connected to the surface of the fixing rod. Two guide rollers are rotatably connected between the first bearing seat and the second bearing seat.

[0009] As a further preferred embodiment of this technical solution, the inner wall of the mounting groove is provided with a sliding groove, and a roller is rotatably connected inside the sliding groove.

[0010] As a further preferred embodiment of this technical solution, a support frame is fixedly installed on the top of the workbench, and a drive motor is fixedly installed on the side of the support frame by bolts. A take-up roller is fixedly installed at the output end of the drive motor.

[0011] As a further preferred embodiment of this technical solution, the number of the guiding devices is three, and the three guiding devices are respectively installed on the left and right sides of the drying box and between the cold air fan and the support frame.

[0012] The beneficial effects of this utility model are as follows:

[0013] 1. The drying mechanism for plastic film printing described in this utility model, with the arrangement of a drying box, exhaust hood, negative pressure fan, connecting pipe, top exhaust pipe, variable frequency fan, exhaust pipe, waste gas treatment device and activated carbon adsorption plate, generates waste gas during the drying process of plastic film printing. When treating the waste gas, the exhaust hood and negative pressure fan can draw in the waste gas escaping from the inlet and outlet on both sides of the drying box. The drawn waste gas is discharged into the waste gas treatment device through the variable frequency fan installed at the top of the top exhaust pipe, so that the activated carbon adsorption plate installed inside the waste gas treatment device can filter the waste gas. The filtered gas can be discharged through the exhaust pipe.

[0014] 2. The drying mechanism for printing plastic film described in this utility model, with its waste gas treatment device, activated carbon adsorption plate, chute and rollers, allows the activated carbon adsorption plate to slide via the installed rollers when it needs to be replaced, thus enabling better replacement of the activated carbon adsorption plate and reducing replacement time. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings.

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the adjustment structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the waste gas extraction structure of this utility model;

[0019] Figure 4 This is a schematic diagram of the waste gas treatment structure of this utility model;

[0020] Figure 5 This is a schematic diagram of the cooling structure of this utility model.

[0021] In the diagram: 1. Workbench; 2. Drying oven; 3. Exhaust hood; 4. Negative pressure fan; 5. Connecting pipe; 6. Top exhaust pipe; 7. Variable frequency fan; 8. Exhaust pipe; 9. Waste gas treatment device; 10. Mounting slot; 11. Activated carbon adsorption plate; 12. Sealing slot; 13. Cover plate; 14. Air outlet pipe; 15. Guide device; 151. Mounting block; 152. Threaded rod; 153. Fixing rod; 154. First bearing seat; 155. Second bearing seat; 156. Guide roller; 16. Cooling mechanism; 17. Air cooler; 18. Cooling roller; 19. Slide groove; 20. Roller; 21. Support frame; 22. Drive motor; 23. Take-up roller. Detailed Implementation

[0022] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0023] like Figures 1 to 5As shown, this utility model discloses a drying mechanism for printing plastic film, comprising a workbench 1, a drying chamber 2 fixedly mounted on the top of the workbench 1, exhaust hoods 3 fixedly mounted on the inlets and outlets on both sides of the drying chamber 2, a negative pressure fan 4 fixedly mounted on the top of the exhaust hoods 3 by bolts, a connecting pipe 5 fixedly mounted on the other end of the negative pressure fan 4, a top exhaust pipe 6 fixedly mounted on the other end of the connecting pipe 5, a variable frequency fan 7 fixedly mounted on the top of the top exhaust pipe 6, an exhaust pipe 8 fixedly mounted on the other end of the variable frequency fan 7, and the other end of the exhaust pipe 8 fixedly mounted on the side of a waste gas treatment device 9 by a flange, an installation groove 10 provided on the side of the waste gas treatment device 9, an activated carbon adsorption plate 11 inserted into the installation groove 10, a sealing groove 12 provided on the side of the waste gas treatment device 9, a cover plate 13 fixedly mounted on the inside of the sealing groove 12 by bolts, an exhaust pipe 14 fixedly mounted on the other side of the waste gas treatment device 9, and a drying device installed inside the drying chamber 2 welded to the top of the workbench 1. The drying device can then dry the bottom of the plastic film. During the drying process, waste gas is generated. Exhaust hoods 3 are fixedly installed on the inlets and outlets on both sides of the drying chamber 2. The top of the exhaust hoods 3 can be fixed to a negative pressure fan 4 with bolts, allowing the negative pressure fan 4 to extract any escaping waste gas and prevent it from escaping outside the device. The extracted waste gas is connected to the side of the top exhaust pipe 6 via a connecting pipe 5. A variable frequency fan 7 is fixed to the top of the top exhaust pipe 6 with bolts. The variable frequency fan 7 can... The exhaust gas inside the top exhaust pipe 6 is discharged into the exhaust gas treatment device 9 through the exhaust pipe 8. The activated carbon adsorption plate 11 installed inside the exhaust gas treatment device 9 can filter the exhaust gas. The filtered exhaust gas is discharged through the exhaust pipe 14 welded to the side of the exhaust gas treatment device 9. The exhaust pipe 14 is connected to the chimney to facilitate the discharge of the treated gas. The sealing groove 12 opened on the side of the exhaust gas treatment device 9 allows the cover plate 13 to be fixed with bolts, thereby sealing the activated carbon adsorption plate 11.

[0024] like Figures 1 to 5 As shown, a guide device 15 is fixedly installed on the top of the workbench 1, and a cooling mechanism 16 is fixedly installed on the top of the workbench 1. A cooler 17 is fixedly installed inside the cooling mechanism 16, and a cooling roller 18 is fixedly installed inside the cooling mechanism 16. The guide device 15 is welded to the top of the workbench 1, so that the guide device 15 can guide the plastic film. The guided plastic film can pass through the cooling mechanism 16, so that the cooler 17 fixedly installed inside the cooling mechanism 16 can cool the surface of the plastic film. At the same time, the cooling roller 18 rotatably connected inside the cooling mechanism 16 can further cool the plastic film, so as to improve production efficiency.

[0025] like Figure 2As shown, the guide device 15 includes two mounting blocks 151. A threaded rod 152 is rotatably connected inside the mounting block 151, and the threaded rod 152 passes through the top of the mounting block 151. A fixing rod 153 is fixedly installed inside the other mounting block 151. A first bearing seat 154 is threadedly connected to the surface of the threaded rod 152. A second bearing seat 155 is slidably connected to the surface of the fixing rod 153. Two guide rollers 156 are rotatably connected between the first bearing seat 154 and the second bearing seat 155. Two mounting blocks 151 are fixedly installed on the top of the worktable 1. The threaded rod 152 is rotatably connected inside the mounting block 151, and a fixing rod 153 is fixedly installed inside the other mounting block 151. When the threaded rod 152 is rotated, it can drive the first bearing seat 154 to rise and fall. The rising and falling first bearing seat 154 can drive the second bearing seat 155 to rise and fall through the guide rollers 156, thereby facilitating the use of the device.

[0026] like Figure 1 As shown, the inner wall of the mounting groove 10 is provided with a sliding groove 19, and a roller 20 is rotatably connected inside the sliding groove 19. A support frame 21 is fixedly installed on the top of the workbench 1, and a drive motor 22 is fixedly installed on the side of the support frame 21 by bolts. A take-up roller 23 is fixedly installed at the output end of the drive motor 22. The sliding groove 19 inside the mounting groove 10 facilitates the rotatable connection of the roller 20 inside the sliding groove 19, so that the roller 20 can easily slide into the interior of the mounting groove 10 with the activated carbon adsorption plate 11. At the same time, a support frame 21 is welded to the top of the workbench 1, and the drive motor 22 can be fixed on the side of the support frame 21 by bolts. The output end of the drive motor 22 can drive the take-up roller 23 to rotate, and the rotating take-up roller 23 can roll up the dried plastic film.

[0027] Working Principle: During operation, when drying the printed plastic film, the plastic film is guided by three guiding devices 15, allowing it to pass between two guide rollers 156. Simultaneously, a support frame 21 welded to the top of the workbench 1, with a drive motor 22 bolted to its side, drives a take-up roller 23 to rotate. The rotating take-up roller 23 winds up the plastic film, which passes through the inlets and outlets on both sides of the drying chamber 2. Upon entering the drying chamber 2, the drying device at the bottom dries the film. During drying, exhaust gas is generated. This exhaust gas is absorbed by a negative pressure fan 4 through an exhaust hood 3, preventing escape. Simultaneously, a connecting pipe 5 fixedly installed at the other end of the negative pressure fan 4 connects to the side of the top exhaust pipe 6, which discharges the exhaust gas. The discharged exhaust gas then passes through a variable frequency fan 7 and an exhaust pipe. The activated carbon adsorption plate 11 is introduced into the exhaust gas treatment device 9. An installation groove 10 is provided on the side of the exhaust gas treatment device 9, and a sliding groove 19 is provided on the inner wall of the installation groove 10. A roller 20 is rotatably connected inside the sliding groove 19, allowing the activated carbon adsorption plate 11 to slide into the installation groove 10 via the roller 20. This facilitates the installation of the activated carbon adsorption plate 11, enabling the exhaust gas to be filtered by the activated carbon adsorption plate 11 and then discharged through the exhaust pipe 14. When replacing the activated carbon adsorption plate 11, a tool can be used to unscrew the bolts, allowing the cover plate 13 to be removed, thus facilitating the removal and replacement of the activated carbon adsorption plate 11. After drying the plastic film, the plastic film passes through the cooling mechanism 16, allowing the cold air fan 17 installed inside the cooling mechanism 16 to cool the surface of the plastic film. Simultaneously, the plastic film is guided by the cooling roller 18, accelerating the cooling process and improving production efficiency.

[0028] The terms "front," "back," "left," "right," "top," and "bottom" all refer to the figures in the accompanying drawings. Figure 1 Based on the perspective of the observer, the side of the device facing the observer is defined as the front, the left side of the observer is defined as the left, and so on.

[0029] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of this utility model.

[0030] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A drying mechanism for printing plastic film, characterized in that, The device includes a workbench, on the top of which a drying chamber is fixedly installed. Exhaust hoods are fixedly installed at the inlets and outlets on both sides of the drying chamber. A negative pressure fan is fixedly installed at the top of each exhaust hood via bolts. A connecting pipe is fixedly installed at the other end of the negative pressure fan, and a top exhaust pipe is fixedly installed at the other end of the connecting pipe. A variable frequency fan is fixedly installed at the top of the top exhaust pipe, and an exhaust pipe is fixedly installed at the other end of the variable frequency fan. The other end of the exhaust pipe is fixedly installed on the side of the waste gas treatment device via a flange. An installation groove is provided on the side of the waste gas treatment device, and an activated carbon adsorption plate is inserted into the installation groove. A sealing groove is provided on the side of the waste gas treatment device, and a cover plate is fixedly installed inside the sealing groove via bolts. An outlet pipe is fixedly installed on the other side of the waste gas treatment device.

2. The drying mechanism for printing plastic film according to claim 1, characterized in that, A guide device is fixedly installed on the top of the workbench, a cooling mechanism is fixedly installed on the top of the workbench, a cold air fan is fixedly installed inside the cooling mechanism, and a cooling roller is fixedly installed inside the cooling mechanism.

3. The drying mechanism for printing plastic film according to claim 2, characterized in that, The guiding device includes two mounting blocks. A threaded rod is rotatably connected inside the mounting block and passes through the top of the mounting block. A fixing rod is fixedly installed inside the other mounting block. A first bearing seat is threadedly connected to the surface of the threaded rod, and a second bearing seat is slidably connected to the surface of the fixing rod. Two guide rollers are rotatably connected between the first bearing seat and the second bearing seat.

4. The drying mechanism for printing plastic film according to claim 1, characterized in that, The inner wall of the mounting groove is provided with a sliding groove, and a roller is rotatably connected inside the sliding groove.

5. A drying mechanism for printing plastic film according to claim 1, characterized in that, A support frame is fixedly installed on the top of the workbench, and a drive motor is fixedly installed on the side of the support frame by bolts. A take-up roller is fixedly installed at the output end of the drive motor.

6. A drying mechanism for printing plastic film according to claim 2, characterized in that, The number of guiding devices is three, and the three guiding devices are respectively installed on the left and right sides of the drying box and between the cold air fan and the support frame.

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