Water cooling device for plastic film processing

Abstract

The utility model relates to the technical field of plastic film processing, and particularly discloses a water cooling device for plastic film processing, which comprises a box body, the upper end face of the box body is fixedly connected with two supports, the upper end faces of the two supports are both provided with electric push rods, and the output ends of the two electric push rods are fixedly connected with a door-shaped frame. The upper side of the inner wall of the door-shaped frame is rotationally connected with a first limiting roller, the lower side of the inner wall of the door-shaped frame is rotationally connected with a pressing roller, the left side and the right side of the upper end face of the box body are each fixedly connected with two supporting plates, and two sets of second limiting rollers distributed left and right are rotationally connected between the two supporting plates located on the same side; the first limiting roller and the pressing roller are driven by the electric push rod to be synchronously immersed in cooling water, the plastic film can be prevented from being broken or deformed, the problems that a traditional water cooling device is prone to causing film deformation and uneven cooling are effectively solved in cooperation with the circulating water cooling system and the double-side air drying device, and the production efficiency and the product quality are remarkably improved.

Description

Technical Field

[0001] This utility model relates to the field of plastic film processing technology, and specifically discloses a water-cooling device for plastic film processing. Background Technology

[0002] Biaxially oriented polypropylene (BOP) film is generally a multilayer co-extruded film, made by co-extruded polypropylene granules into sheets, and then stretching them in both longitudinal and transverse directions. Due to the oriented stretching, this type of film has good physical stability, mechanical strength, airtightness, high transparency and gloss, and is tough and wear-resistant, making it a widely used printing film. However, in the manufacturing process of plastic film, cooling is necessary for safe and stable winding. While air cooling is commonly used, although simple to operate, the odor carried by the plastic film itself can easily be dispersed, potentially harming the health of workers.

[0003] Chinese patent CN220883059U discloses a water-cooling device for plastic film processing, including a tank. The top surface of the tank has an integrally formed support bracket for auxiliary support, and there are two sets of brackets. During the production of the plastic film, the stretched plastic film easily passes through the bottom of the pressure roller. Then, an electric push rod on the surface of the support bracket at the top of the tank operates. The electric push rod easily pushes the seat between the two sets of brackets to move, causing the seat to move the protrusion in the groove inside the bracket. This allows the seat to more stably move the pressure roller, enabling the pressure roller to push the plastic film into the cooling water inside the tank for water cooling. This facilitates water cooling of the plastic film, with high cooling efficiency and ease of operation, preventing the odor carried by the plastic film from spreading.

[0004] The aforementioned document discloses a water cooling device for plastic film processing that lacks a compensation mechanism. When the plastic film is pressed into the water tank, it is prone to being broken or deformed. Furthermore, it cannot quickly dry the film after water cooling, resulting in poor performance. Therefore, a water cooling device for plastic film processing is needed to solve this problem. Utility Model Content

[0005] This invention proposes a water-cooling device for plastic film processing. By driving the first limiting roller and the pressure roller to be simultaneously immersed in cooling water through an electric push rod, the plastic film can be prevented from breaking or deforming. Combined with a circulating water-cooling system and a double-sided air-drying device, it effectively solves the problems of film deformation and uneven cooling caused by traditional water-cooling devices, and significantly improves production efficiency and product quality.

[0006] This utility model is implemented as follows: a water-cooling device for plastic film processing includes a housing. Two supports are fixedly connected to the upper end face of the housing. Electric push rods are installed on the upper end faces of the two supports. A gantry frame is fixedly connected to the output ends of the two electric push rods. A first limiting roller is rotatably connected to the upper side of the inner wall of the gantry frame. A pressure roller is rotatably connected to the lower side of the inner wall of the gantry frame. Two support plates are fixedly connected to the left and right sides of the upper end face of the housing. Two sets of second limiting rollers distributed horizontally are rotatably connected between the two support plates on the same side. Two vertically distributed air cavities are fixedly connected between the two support plates on the right side. Multiple evenly distributed air holes are opened on the opposite side of the two air cavities. Two fans with air outlets connected to the two air cavities are installed on the front end face of the housing.

[0007] As a preferred embodiment of the water cooling device for plastic film processing according to this utility model, a pump body with an inlet connected to the box body is installed on the outer wall of the box body, and a filter box fixedly connected to the box body is connected to the outlet of the pump body. A filter plate is detachably connected to the inside of the filter box by bolts. A condenser with an inlet connected to the filter box is installed on the outer wall of the box body, and the outlet of the condenser is connected to the box body.

[0008] As a preferred embodiment of the water cooling device for plastic film processing according to this utility model, the lower end of the filter box is provided with a slag discharge port, and the outer wall of the slag discharge port is threaded with a sealing cap.

[0009] As a preferred embodiment of the water-cooling device for plastic film processing according to this utility model, the outer wall of the gantry frame is fixedly connected to two limiting blocks, and the outer walls of the two opposing supports are provided with limiting grooves that match the limiting blocks.

[0010] As a preferred embodiment of the water cooling device for plastic film processing according to this utility model, a drain outlet with a valve installed on the outer wall of the outer wall of the box is provided on the lower side of the outer wall.

[0011] As a preferred embodiment of the water-cooling device for plastic film processing according to this utility model, a controller is provided on the outer wall of one of the brackets, and the electric push rod, pump body and condenser are all electrically connected to the controller.

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

[0013] 1. By driving the gantry frame with an electric actuator to move the first limit roller and the pressure roller up and down synchronously, the linkage compensation mechanism between the first limit roller and the pressure roller can be used to avoid the film from breaking or deforming due to excessive tension, which significantly improves the stability of the cooling process and the product yield.

[0014] 2. A closed-loop water circulation system consisting of a pump body, filter box, and condenser is adopted to achieve filtration, cooling, and reuse of cooling water, reducing water waste; combined with the uniform blowing of the membrane surface by the double-sided air chambers, residual moisture is quickly removed, forming an integrated process of "cooling-filtration-drying", which improves production efficiency and reduces energy consumption. Attached Figure Description

[0015] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0016] Figure 1 This is an overall structural diagram of a water-cooling device for processing plastic film according to this utility model.

[0017] Figure 2 This is a structural diagram of the portal frame of this utility model.

[0018] Figure 3 This is a cross-sectional view of the filter box of this utility model.

[0019] Figure 4 This is a structural diagram of the air cavity of this utility model.

[0020] The markings in the diagram are: 1. Box body; 2. Support frame; 3. Electric actuator; 4. Gantry frame; 5. First limiting roller; 6. Pressure roller; 7. Limiting block; 8. Support plate; 9. Second limiting roller; 10. Air cavity; 11. Air hole; 12. Fan; 13. Pump body; 14. Filter box; 15. Condenser; 16. Filter plate; 17. Slag discharge port; 18. Drainage port. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings and specific embodiments to aid in understanding its content. Unless otherwise specified, the methods used in this invention are conventional methods; the raw materials and apparatus used, unless otherwise specified, are conventional commercially available products.

[0022] Please see Figure 1-4A water-cooling device for processing plastic film includes a housing 1. Two supports 2 are fixedly connected to the upper end face of the housing 1. Electric push rods 3 are installed on the upper end face of the two supports 2. A gantry frame 4 is fixedly connected to the output end of the two electric push rods 3. A first limiting roller 5 is rotatably connected to the upper side of the inner wall of the gantry frame 4. A pressure roller 6 is rotatably connected to the lower side of the inner wall of the gantry frame 4. Two support plates 8 are fixedly connected to the left and right sides of the upper end face of the housing 1. Two sets of second limiting rollers 9 distributed left and right are rotatably connected between the two support plates 8 on the same side. Two air cavities 10 distributed up and down are fixedly connected between the two support plates 8 on the right side. Multiple evenly distributed air holes 11 are opened on the opposite side of the two air cavities 10. Two fans 12 with air outlets connected to the two air cavities 10 are installed on the front end face of the housing 1.

[0023] In this embodiment: During use, the plastic film is passed between the two sets of second limiting rollers 9 on the left, then above the first limiting roller 5, then below the pressure roller 6, and finally between the two sets of second limiting rollers 9 on the right. Simultaneously, two electric push rods 3 are activated, driving the gantry frame 4 downwards, which in turn drives the first limiting roller 5 and the pressure roller 6 downwards. The pressure roller 6 pushes the plastic film into the cooling water in the housing 1 for cooling. The synchronous up-and-down movement of the first limiting roller 5 and the pressure roller 6 compensates for the plastic film's movement (with both ends of the plastic film fixed, the plastic film can slide between the first limiting roller 5 and the pressure roller 6 during the downward pressure of the pressure roller 6), preventing the plastic film from being crushed or deformed. The fan 12 is activated, blowing air from the air holes 11 to simultaneously dry both sides of the plastic film, making it convenient to use.

[0024] As a technical optimization of this utility model, a pump body 13 with an inlet connected to the outer wall of the housing 1 is installed, and a filter box 14 fixedly connected to the housing 1 is connected to the outlet of the pump body 13. A filter plate 16 is detachably connected to the inside of the filter box 14 by bolts. A condenser 15 with an inlet connected to the filter box 14 is installed on the outer wall of the housing 1, and the outlet of the condenser 15 is connected to the housing 1.

[0025] In this embodiment: the cooling water in the housing 1 is pumped into the filter box 14 by the pump body 13, and the impurities in the cooling water are filtered by the filter plate 16 to prevent the impurities in the water from damaging the plastic film. The filtered cooling water enters the condenser 15 through the pipe for cooling. After cooling, the cooling water flows back into the housing 1 through the pipe for circulating cooling.

[0026] As a technical optimization of this utility model, the lower end of the filter box 14 is provided with a slag discharge port 17, and the outer wall of the slag discharge port 17 is threaded with a sealing cap.

[0027] In this embodiment: opening the sealing cover facilitates the discharge of impurities filtered out of the filter box 14 from the slag discharge port 17.

[0028] As a technical optimization of this utility model, the outer wall of the portal frame 4 is fixedly connected with two limiting blocks 7, and the outer walls of the two supports 2 are respectively provided with limiting grooves that match the limiting blocks 7.

[0029] In this embodiment, the limiting block 7 and the limiting groove cooperate to facilitate the limiting of the gantry frame 4, so that the gantry frame 4 moves up and down stably.

[0030] As a technical optimization of this utility model, a drain outlet 18 with a valve installed on the outer wall is provided on the lower side of the outer wall of the box 1.

[0031] In this embodiment, a drain outlet 18 is provided on the lower side of the outer wall of the housing 1 to facilitate the drainage and replacement of the cooling water in the housing 1.

[0032] As a technical optimization of this utility model, a controller is provided on the outer wall of one of the brackets 2, and the electric push rod 3, pump body 13 and condenser 15 are all electrically connected to the controller.

[0033] In this embodiment, the controller facilitates the normal operation of the electric actuator 3, pump body 13, and condenser 15.

[0034] The working principle and usage process of this utility model are as follows: In use, the plastic film is passed between the two sets of second limiting rollers 9 on the left, then above the first limiting roller 5, then below the pressure roller 6, and finally between the two sets of second limiting rollers 9 on the right. Then, two electric push rods 3 are simultaneously activated, driving the gantry frame 4 downwards, which in turn drives the first limiting roller 5 and the pressure roller 6 downwards. The pressure roller 6 pushes the plastic film into the cooling water in the housing 1 for cooling. The synchronous up-and-down movement of the first limiting roller 5 and the pressure roller 6 compensates for the plastic film, preventing it from being crushed or deformed. The fan 12 is then activated, blowing air from the air holes 11 to simultaneously dry both sides of the plastic film. This method is convenient to use.

[0035] In the description of this utility model, it should be understood that the terms "left", "right", "up", "down", "top", "bottom", "front", "back", "inner", "outer", "back", "middle", 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 limitations on this utility model.

[0036] However, the above description is only a specific embodiment of this utility model and should not be construed as limiting the scope of implementation of this utility model. Therefore, any substitution of equivalent components or equivalent changes and modifications made in accordance with the scope of protection of this utility model should still fall within the scope of the claims of this utility model.

Claims

1. A water-cooling device for processing plastic film, comprising a housing (1), wherein two supports (2) are fixedly connected to the upper end face of the housing (1), and electric push rods (3) are installed on the upper end faces of the two supports (2), and gantry frames (4) are fixedly connected to the output ends of the two electric push rods (3), characterized in that: The upper side of the inner wall of the portal frame (4) is rotatably connected to a first limiting roller (5), and the lower side of the inner wall of the portal frame (4) is rotatably connected to a pressure roller (6). Two support plates (8) are fixedly connected to the left and right sides of the upper end face of the box (1). Two sets of second limiting rollers (9) distributed left and right are rotatably connected between the two support plates (8) on the same side. Two air cavities (10) distributed up and down are fixedly connected between the two support plates (8) on the right side. Multiple evenly distributed air holes (11) are opened on the opposite side of the two air cavities (10). Two fans (12) with air outlets connected to the two air cavities (10) are installed on the front end face of the box (1).

2. The water-cooling device for plastic film processing according to claim 1, characterized in that: The outer wall of the housing (1) is equipped with a pump body (13) whose inlet is connected to the housing (1). The outlet of the pump body (13) is connected to a filter box (14) which is fixedly connected to the housing (1). The filter box (14) is detachably connected to a filter plate (16) by bolts. The outer wall of the housing (1) is equipped with a condenser (15) whose inlet is connected to the filter box (14). The outlet of the condenser (15) is connected to the housing (1).

3. The water-cooling device for plastic film processing according to claim 2, characterized in that: The filter box (14) is provided with a slag discharge port (17) at the lower end, and a sealing cap is threaded onto the outer wall of the slag discharge port (17).

4. The water-cooling device for plastic film processing according to claim 1, characterized in that: The outer wall of the gantry frame (4) is fixedly connected to two limiting blocks (7), and the outer walls of the two supports (2) are provided with limiting grooves that match the limiting blocks (7).

5. A water-cooling device for processing plastic film according to claim 1, characterized in that: The lower side of the outer wall of the box (1) is provided with a drain outlet (18) with a valve installed on the outer wall.

6. A water-cooling device for processing plastic film according to claim 1, characterized in that: One of the brackets (2) has a controller installed on its outer wall, and the electric push rod (3), pump body (13) and condenser (15) are all electrically connected to the controller.

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