Cooling device for PVC film production

Abstract

The utility model discloses a cooling device for PVC film production, and relates to the technical field of PVC film production, the cooling device comprises a cooling box and a PVC film, the top of the interior of the cooling box is connected with a top cover through a connecting bolt, a heat dissipation cavity is installed on the top cover, the heat dissipation cavity is communicated with the interior of the cooling box, a heat dissipation fan is installed in the heat dissipation cavity, and the heat dissipation fan is communicated with the interior of the cooling box. Notches are formed in the two ends of the cooling box, the PVC film enters from the notch in one end of the cooling box and leaves from the notch in the other end of the cooling box, a mounting groove is fixedly formed in one side of the bottom of the cooling box, an inner cavity of the cooling box is communicated with the outside through the mounting groove, and a filter plate is inserted into the mounting groove in a matched mode. And hot air in the cooling box is pumped out and discharged to the outside, so that the air pressure in the cooling box is gradually reduced, and the outside air enters the cooling box from the mounting groove under the action of pressure difference, so that continuous air circulation is formed, and continuous cooling of the PVC film is realized.

Description

TECHNICAL FIELD

[0001] The utility model relates to PVC film production technical field, specifically for a kind of cooling device for PVC film production. BACKGROUND

[0002] The main component of PVC film is polyvinyl chloride resin, which is commonly used in building materials, packaging and other industries. In recent years, PVC film has become increasingly popular in glass decoration. The production process of PVC film is as follows: first, PVC resin particles are melted and extruded through an extruder, then a calender is used to form a film, then a cooling mechanism is used for shaping, and finally, the edges are trimmed and rolled up.

[0003] The Chinese utility model patent with patent application number 202123444299.4 provides a cooling device for PVC film production. The first cooling cylinder is arranged at the upper end of the support plate. The second cooling cylinder is arranged at the end of the adjusting column, and the second cooling cylinder and the first cooling cylinder are arranged in a vertical position. The dispenser is arranged at the side of the placing frame. The first hose and the second hose are arranged in sequence at the side of the dispenser. The first hose and the second hose are connected with the first connecting plug and the second connecting plug respectively. This device is convenient for direct replacement of cooling liquid, without the need to disassemble the cooling roller, thereby improving production efficiency.

[0004] However, during the use of the above-mentioned device, it is found that the cooling liquid needs to be replaced and supplemented regularly to ensure its cooling performance and stability. High-quality cooling liquid is expensive and has a large consumption, which will increase the production cost in the long run. UTILITY MODEL CONTENTS

[0005] In view of the shortcomings of the prior art, the utility model provides a cooling device for PVC film production, which solves the problem of high price and large consumption of cooling liquid in the background technology, which will increase the production cost in the long run.

[0006] To achieve the above purpose, the utility model realizes the following technical scheme: a cooling device for PVC film production, comprising a cooling box and a PVC film. A top cover is connected to the inside top of the cooling box by connecting bolts. A heat dissipation cavity is installed on the top cover. The heat dissipation cavity is in communication with the inside of the cooling box. A heat dissipation fan is installed inside the heat dissipation cavity. Grooves are formed at both ends of the cooling box. The PVC film enters from one end of the groove of the cooling box and exits from the other end. An installation slot is fixedly arranged on one side of the bottom of the cooling box. The installation slot connects the inner cavity of the cooling box with the outside. A filter plate is adaptively inserted into the installation slot.

[0007] Preferably, the top of the heat dissipation cavity is bonded with a magnetic ring. The heat dissipation cavity is magnetically connected with the filter screen through the magnetic ring.

[0008] Preferably, the cooling box has a mounting hole on the side away from the mounting slot, the mounting hole is adapted to the heat-conducting rod, and the heat-conducting rod is fixedly installed on one side of the heat-conducting plate.

[0009] Preferably, the heat-conducting plate is disposed on the outside of the cooling box, the heat-conducting rod passes through the mounting hole and is disposed inside the cooling box, the PVC film enters from one end slot of the cooling box and exits from the other end slot and comes into contact with the heat-conducting rod, and a limiting rod is fixedly installed on the inner wall of the cooling box, the limiting rod being parallel to the heat-conducting rod.

[0010] Preferably, the heat-conducting plate is adapted to the limiting groove, the limiting groove is formed on the limiting frame, the limiting frame is connected to the cooling box by connecting bolts, and multiple sets of heat dissipation fins are provided on the side of the heat-conducting plate near the limiting frame.

[0011] Preferably, a mounting bracket is fixedly installed on the outer side of the slots at both ends of the cooling box, and a cleaning component is inserted into the inside of the mounting bracket.

[0012] This invention provides a cooling device for PVC film production. It has the following advantages:

[0013] (1) This utility model uses the fan in the heat dissipation cavity to draw out the hot air inside the cooling box and discharge it to the outside, which causes the air pressure inside the cooling box to gradually decrease. The outside air will enter the cooling box from the mounting slot under the action of pressure difference, forming a continuous air circulation, which realizes the continuous cooling of PVC film. Compared with the use of coolant, the production cost is lower.

[0014] (2) In this utility model, the heat is conducted from the PVC film to the heat-conducting rod, and the heat can be dissipated to the surrounding environment through the heat-conducting plate and heat sink, thereby further improving the cooling efficiency of the PVC film.

[0015] This solves the problem of high coolant prices, large usage volumes, and increased production costs with long-term use. Attached Figure Description

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

[0017] Figure 2 This utility model Figure 1 Rear view of the overall structure;

[0018] Figure 3 This utility model Figure 1 Exploded view of the top cover structure;

[0019] Figure 4 This utility modelFigure 2 Exploded view of the structure of the heat-conducting plate;

[0020] Figure 5 This utility model Figure 1 A diagram showing the internal structure of the intermediate cooling box.

[0021] In the diagram, 1. Cooling box; 11. Mounting slot; 12. Filter plate; 13. Mounting bracket; 14. Mounting hole; 15. Limiting rod; 2. PVC membrane; 3. Top cover; 4. Heat dissipation cavity; 41. Magnetic ring; 5. Filter screen; 6. Limiting frame; 61. Limiting slot; 7. Heat conduction plate; 71. Heat sink; 72. Heat conduction rod; 8. Cleaning assembly. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Example 1: Please refer to Figures 1-5 A cooling device for PVC film production includes a cooling box 1 and a PVC film 2. The top of the interior of the cooling box 1 is connected to a top cover 3 by connecting bolts. A heat dissipation cavity 4 is installed on the top cover 3 and is connected to the interior of the cooling box 1. A cooling fan is installed inside the heat dissipation cavity 4. Both ends of the cooling box 1 are provided with slots. The PVC film 2 enters from one end slot of the cooling box 1 and exits from the other end slot. An installation groove 11 is fixedly provided on one side of the bottom of the cooling box 1. The installation groove 11 connects the interior of the cooling box 1 to the outside. A filter plate 12 is adapted to be inserted into the installation groove 11.

[0024] A magnetic ring 41 is attached to the top of the heat dissipation cavity 4, and the heat dissipation cavity 4 is magnetically connected to the filter screen 5 through the magnetic ring 41.

[0025] Mounting brackets 13 are fixedly installed on the outer sides of the slots at both ends of the cooling box 1, and cleaning components 8 are inserted into the inside of the mounting brackets 13.

[0026] Specifically, the cleaning component 8 includes a cleaning frame and a brush. The brush can be mounted on the mounting frame 13 via the cleaning frame. The brush can come into contact with the PVC film 2. During the production process of the PVC film 2, the brush can clean the surface of the PVC film 2 in real time as the PVC film 2 moves, removing a small amount of dust, fibers and other impurities that may be attached to the surface, maintaining the cleanliness of the PVC film 2 surface, which is beneficial for subsequent processing and use.

[0027] The cooling fan installed inside the heat dissipation cavity 4 rotates, drawing air out of the cooling box 1 and expelling it to the outside. As air is continuously drawn out, the air pressure inside the cooling box 1 gradually decreases, creating a negative pressure. Since the mounting groove 11 on one side of the bottom of the cooling box 1 connects the inner cavity of the cooling box 1 to the outside, after a negative pressure is formed inside the cooling box 1, cold air from the outside will enter the cooling box 1 through the mounting groove 11 under the action of the pressure difference. The filter plate 12 in the mounting groove 11 can effectively prevent dust, impurities, etc. from entering the cooling box 1 with the cold air, avoiding these impurities from adhering to the surface of the PVC membrane 2 and affecting its quality. The plug-in method makes it convenient to replace and clean the filter plate 12. The cold air entering the cooling box 1 comes into contact with the surface of the PVC membrane 2. Based on the principle of heat transfer, the heat of the PVC membrane 2 will be transferred to the cold air, causing the cold air temperature to rise and become hot air, while the PVC membrane 2 will cool down. The hot air will then be drawn out of the cooling box 1 by the cooling fan, and so on, continuously carrying away the heat of the PVC membrane 2 to achieve a cooling effect.

[0028] The top of the heat dissipation cavity 4 is magnetically connected to the filter screen 5 via a magnetic ring 41. The filter screen 5 can further filter the air entering the heat dissipation cavity 4 from the outside, preventing small particles carried in the air from entering the cooling box 1 through the heat dissipation cavity 4, providing double protection for the cooling environment of the PVC membrane 2. At the same time, the magnetic connection method makes the filter screen 5 very easy to install. During the daily maintenance of the equipment or when replacing the filter screen 5, the operator can quickly complete the installation steps, greatly shortening the installation time and improving work efficiency.

[0029] Compared to using coolant, this device uses air convection for cooling, and the cooling fan has a relatively low power consumption, resulting in less electrical energy consumption during operation. Compared to the circulating pump in a coolant cooling system, which needs to run continuously to ensure coolant circulation, it has a significant advantage in energy consumption costs.

[0030] Example 2: For further cooling and temperature reduction, please refer to... Figures 1-5 Based on embodiment 1, a mounting hole 14 is provided on the side of the cooling box 1 away from the mounting groove 11. The mounting hole 14 is adapted to the heat-conducting rod 72, and the heat-conducting rod 72 is fixedly installed on one side of the heat-conducting plate 7.

[0031] The heat-conducting plate 7 is set on the outside of the cooling box 1, and the heat-conducting rod 72 is set inside the cooling box 1 through the mounting hole 14. The PVC film 2 enters from one end slot of the cooling box 1 and exits from the other end slot and comes into contact with the heat-conducting rod 72. A limiting rod 15 is fixedly installed on the inner wall of the cooling box 1, and the limiting rod 15 is parallel to the heat-conducting rod 72.

[0032] The heat-conducting plate 7 is adapted to the limiting groove 61, which is opened on the limiting frame 6. The limiting frame 6 is connected to the cooling box 1 by connecting bolts. Multiple heat sinks 71 are provided on the side of the heat-conducting plate 7 near the limiting frame 6.

[0033] Specifically, when the PVC film 2 enters and runs through the slot at one end of the cooling box 1, it comes into contact with the heat-conducting rod 72. Since the heat-conducting rod 72 is fixedly installed on one side of the heat-conducting plate 7 and extends into the cooling box 1 through the mounting hole 14, some of the heat from the PVC film 2 is directly conducted to the heat-conducting rod 72. The heat-conducting rod 72 is made of a material with good thermal conductivity (such as copper or aluminum), and has a high thermal conductivity coefficient, enabling it to efficiently and quickly conduct the heat from the PVC film 2 to the heat-conducting plate 7. Multiple sets of heat sinks 71 are provided on the side of the heat-conducting plate 7 near the limiting frame 6. After the heat is conducted to the heat-conducting plate 7, it is further diffused to the surrounding environment through the heat sinks 71. By increasing the contact area with the air, the heat sinks 71 accelerate the dissipation of heat to the surrounding air, working in conjunction with the air convection inside the cooling box 1 to form a synergistic heat dissipation effect, further enhancing the cooling and temperature reduction effect.

[0034] The limiting frame 6 is connected to the cooling box 1 by connecting bolts, and the heat-conducting plate 7 is adapted to the limiting groove 61 of the limiting frame 6. This allows the heat-conducting plate 7 to be firmly fixed to the outside of the cooling box 1. Furthermore, the presence of the limiting frame 6 makes maintenance, repair, or replacement of the heat-conducting plate 7 or the heat-conducting rod 72 easier. Simply removing the connecting bolts allows the heat-conducting plate 7 to be removed from the limiting frame 6, enabling the corresponding operations on the heat-conducting rod 72.

[0035] Working principle: When the PVC film 2 enters the cooling box 1 through the slot at one end, the cooling fan in the heat dissipation cavity 4 at the top of the cooling box 1 starts to operate. The cooling fan draws the air out of the cooling box 1 and discharges it to the outside, creating a negative pressure inside the cooling box 1. Under the action of the pressure difference, the outside cold air enters the cooling box 1 through the bottom mounting slot 11. The cold air comes into contact with the PVC film 2, and the heat of the PVC film 2 is transferred to the cold air. After the cold air becomes hot, it is drawn out by the cooling fan, and this cycle achieves initial cooling. At the same time, the PVC film 2 comes into contact with the heat-conducting rod 72 during operation, and some of its heat is conducted to the heat-conducting rod 72, and then to the heat-conducting plate 7. The heat is diffused to the surrounding environment through the heat sink 71 on the heat-conducting plate 7, which, together with the air convection inside the box, enhances the cooling effect.

[0036] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0037] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A cooling device for PVC film production, comprising a cooling tank (1) and a PVC film (2), characterized in that: The top of the cooling box (1) is connected to a top cover (3) by connecting bolts. A heat dissipation cavity (4) is installed on the top cover (3). The heat dissipation cavity (4) is connected to the interior of the cooling box (1). A cooling fan is installed inside the heat dissipation cavity (4). Both ends of the cooling box (1) are provided with slots. The PVC film (2) enters from one end slot of the cooling box (1) and exits from the other end slot. An installation slot (11) is fixedly provided on one side of the bottom of the cooling box (1). The installation slot (11) connects the interior of the cooling box (1) to the outside. A filter plate (12) is adapted to be inserted into the installation slot (11).

2. The cooling device for PVC film production according to claim 1, characterized in that: A magnetic ring (41) is attached to the top of the heat dissipation cavity (4), and the heat dissipation cavity (4) is magnetically connected to the filter screen (5) through the magnetic ring (41).

3. The cooling device for PVC film production according to claim 1, characterized in that: The cooling box (1) has a mounting hole (14) on the side away from the mounting groove (11). The mounting hole (14) is adapted to the heat-conducting rod (72). The heat-conducting rod (72) is fixedly installed on one side of the heat-conducting plate (7).

4. The cooling device for PVC film production according to claim 3, characterized in that: The heat-conducting plate (7) is set on the outside of the cooling box (1), and the heat-conducting rod (72) passes through the mounting hole (14) and is set inside the cooling box (1). The PVC film (2) enters from one end slot of the cooling box (1) and exits from the other end slot, and contacts the heat-conducting rod (72). A limiting rod (15) is fixedly installed on the inner wall of the cooling box (1), and the limiting rod (15) is parallel to the heat-conducting rod (72).

5. A cooling device for PVC film production according to claim 4, characterized in that: The heat-conducting plate (7) is adapted to the limiting groove (61), the limiting groove (61) is opened on the limiting frame (6), the limiting frame (6) is connected to the cooling box (1) by connecting bolts, and the heat-conducting plate (7) is provided with multiple heat sinks (71) on the side near the limiting frame (6).

6. The cooling device for PVC film production according to claim 1, characterized in that: A mounting bracket (13) is fixedly installed on the outer side of the slots at both ends of the cooling box (1), and a cleaning component (8) is inserted into the inside of the mounting bracket (13).

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