Cooling roller for cast film processing

Abstract

The utility model relates to a cooling roller for cast film processing, which is characterized in that a first support plate and a second support plate are respectively arranged at two ends of the upper surface of a fixed bottom plate, a connecting shaft is transversely and rotatably arranged at the upper end of the first support plate in a penetrating manner, the connecting shaft is externally connected with a driving motor, and a cooling roller body is positioned between the first support plate and the second support plate. A cooling water inlet pipe is transversely and fixedly arranged at the center of the mounting block in a penetrating manner, a pipeline a is fixedly arranged at the lower end of the mounting block in a penetrating manner, the left end of the cooling water inlet pipe is located in the cooling roller body and is vertically provided with a plurality of nozzles, and the right end of the cooling water inlet pipe is fixedly connected with the second supporting plate in a penetrating manner; the middle water tank is located on the outer side of the second supporting plate, a booster pump is arranged in the middle water tank, the left side communicates with the pipeline a, the right side is externally connected with a water cooler through a pipeline b, and the water cooler communicates with the cooling water inlet pipe through a water inlet guide pipe. The utility model has the advantages of stable and reasonable structural design and good use effect.

Description

Technical Field

[0001] The utility model belongs to the technical field of plastic film processing, and particularly relates to a cooling roller for cast film processing. Background Art

[0002] Cast film is a non-stretched, non-directional flat extruded film produced by quenching the melt. It has excellent heat sealing properties and good transparency and is one of the main packaging composite substrates. During the production process of cast film, due to the high melting temperature, the cast film after extrusion also has a very high temperature. Therefore, in order to facilitate its subsequent winding and storage, the high-temperature cast film produced must first be cooled by a cooling device. The traditional cooling roller has a cylindrical cavity inside, with the two ends of the cavity connected to the water inlet and outlet respectively. The cooling water flows from Water enters from the inlet, flows through the cavity, and flows out from the water outlet. However, when the cooling roller of this structure is used for a long time, the cooling water absorbs the heat of the surrounding wall of the cooling roller continuously during the process of flowing through the cavity, and gradually heats up. As a result, the cooling water closer to the water outlet has a worse cooling effect on the cooling roller, and a large temperature difference is formed between the water inlet end surface and the water outlet end surface of the cooling roller, thereby affecting the cooling effect on the cast film. Therefore, in order to solve the above problems, it is necessary to develop a cooling roller for cast film processing with a stable and reasonable structural design and good use effect. Utility Model Content

[0003] The purpose of the utility model is to overcome the deficiencies of the prior art and to provide a cooling roller for cast film processing which has a stable and reasonable structural design and good use effect.

[0004] The purpose of the utility model is achieved as follows: a cooling roller for cast film processing, comprising a fixed bottom plate, a cooling roller body and an intermediate water tank, the fixed bottom plate is arranged horizontally as a whole, the left end of its upper surface is vertically fixed with a first support plate, and the right end of the upper surface is vertically fixed with a second support plate, a connecting shaft is rotatably passed through the center of the upper end of the first support plate, and a driving motor is fixed concentrically on the left side of the connecting shaft, the cooling roller body is arranged horizontally between the first support plate and the second support plate, the interior of the cooling roller is hollow, the right side is provided with an opening, the left outer wall is fixedly connected concentrically with the connecting shaft, and the right side of the cooling roller body is open. The interior of the mounting block is rotatably connected to the structure at the opening through a sealed bearing, a cooling water inlet pipe is fixedly penetrated horizontally at the center of the mounting block, and a pipe a is fixedly penetrated at the lower end, the left end of the cooling water inlet pipe is located inside the cooling roller body, and a plurality of nozzles are fixedly connected vertically above, and the right end is fixedly connected to the upper end of the second support plate, the intermediate water tank is located outside the second support plate, a pressure pump is provided inside it, the left side is communicated with the pipe a, and the right side is externally connected to a water cooler through the pipe b, and the water outlet channel at the upper end of the water cooler and the right end of the cooling water inlet pipe are communicated with each other through a water inlet conduit.

[0005] A reinforcement ring is fixedly provided at the center of the left inner wall of the cooling roller body, a reinforcement rod is rotatably passed through the center of the reinforcement ring, and the left end of the cooling water inlet pipe is concentrically fixedly connected to the reinforcement rod.

[0006] A motor bracket is fixedly arranged below the driving motor, and the motor bracket is fixedly connected to the outer side surface of the first support plate.

[0007] A support rod is vertically fixed between the lower end of the motor bracket and the upper surface of the fixed base plate, and the support rod is fixedly connected to the outer side surface of the first support plate.

[0008] The beneficial effects of the utility model are as follows: the utility model provides a driving motor, a connecting shaft, a first support plate and a cooling roller body, utilizes a rotational penetration connection between the connecting shaft and the center of the upper end of the first support plate, and a concentric fixed connection between the left outer wall of the cooling roller body and the connecting shaft. When in use, the driving motor can be turned on to drive the connecting shaft and the cooling roller body to rotate, thereby realizing guided transportation of the cast film wrapped around the outside thereof through the rotation of the cooling roller body; by providing a mounting block, a cooling water inlet pipe and a second support plate, utilizing a fixed penetration connection between the cooling water inlet pipe and the mounting block and the second support plate, a fixed connection between the mounting block, the cooling water inlet pipe and the second support plate can be realized;

[0009] By arranging a nozzle, an intermediate water tank, a water cooler and a water inlet pipe, and utilizing the pressurizing effect of the pressure pump inside the intermediate water tank, the water inside the intermediate water tank can be transported to the inside of the water cooler through pipe b, and after being cooled inside the water cooler, it is injected into the cooling water inlet pipe through the water inlet pipe. Finally, the cooling water entering the cooling water inlet pipe is sprayed to the upper end of the inner surface of the cooling roller body through the nozzle. At this time, the cooling roller body and the cast film wrapped and transported outside it can be cooled by the contact between the cooling water and the inner wall of the cooling roller body. At the same time, the intermediate water tank and the inside of the cooling roller body can be connected by the arrangement of pipe a, so that the water inside the cooling roller body can flow back to the intermediate water tank again, thereby realizing the recycling of cooling water. In general, the utility model has the advantages of stable and reasonable structural design and good use effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a front view of the present utility model.

[0011] Figure 2 It is a sectional view of the front view of the present utility model.

[0012] Figure 3 It is a sectional view of the front view of the connection between the cooling roller body, the connecting shaft, the reinforcement ring, the reinforcement rod and the cooling water inlet pipe in the utility model.

[0013] Figure 4 It is a sectional view of the front view of the connection between the cooling roller body, the mounting block, the second support plate, the cooling water inlet pipe, the intermediate water tank and the water cooler in the utility model.

[0014] In the figure: 1. Fixed base plate; 11. First support plate; 12. Second support plate; 13. Connecting shaft; 2. Cooling roller body; 21. Mounting block; 22. Reinforcement ring; 23. Reinforcement rod; 3. Intermediate water tank; 4. Drive motor; 41. Motor bracket; 42. Support rod; 5. Cooling water inlet pipe; 51. Nozzle; 6. Pipeline a; 7. Water cooler; 71. Water inlet duct. DETAILED DESCRIPTION

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

[0016] Example: Figure 1 、 Figure 2 、 Figure 3 、 Figure 4As shown, a cooling roller for cast film processing includes a fixed bottom plate 1, a cooling roller body 2 and an intermediate water tank 3. The fixed bottom plate 1 is arranged horizontally as a whole, and a first support plate 11 is fixedly provided vertically on the left end of its upper surface, and a second support plate 12 is fixedly provided vertically on the right end of the upper surface. A connecting shaft 13 is rotatably passed through the center of the upper end of the first support plate 11, and a driving motor 4 is fixedly connected to the left side of the connecting shaft 13. The cooling roller body 2 is arranged horizontally between the first support plate 11 and the second support plate 12, and its interior is hollow, with an opening on the right side. The left outer wall is fixedly connected concentrically with the connecting shaft 13, and the interior of the opening on the right side of the cooling roller body 2 is passed through. The sealed bearing is rotatably connected to a mounting block 21 that matches the structure at the opening. A cooling water inlet pipe 5 is fixedly penetrated horizontally at the center of the mounting block 21, and a pipe a6 is fixedly penetrated at the lower end. The left end of the cooling water inlet pipe 5 is located inside the cooling roller body 2, and a plurality of nozzles 51 are fixedly connected vertically above. The right end is fixedly penetrated and connected to the upper end of the second support plate 12. The intermediate water tank 3 is located outside the second support plate 12, and a pressure pump is provided inside it. The left side is communicated with the pipe a6, and the right side is externally connected to the water cooler 7 through the pipe b. The water outlet channel at the upper end of the water cooler 7 and the right end of the cooling water inlet pipe 5 are communicated with each other through a water inlet conduit 71.

[0017] A reinforcement ring 22 is fixedly provided at the center of the left inner wall of the cooling roller body 2, and a reinforcement rod 23 is rotatably passed through the center of the reinforcement ring 22. The left end of the cooling water inlet pipe 5 is concentrically fixedly connected to the reinforcement rod 23. With this structure, the reinforcement rod 23 can be used to increase the structural stability of the cooling water inlet pipe 5 during overall use without affecting the rotation of the cooling roller body 2; a motor bracket 41 is fixedly provided below the drive motor 4, and the motor bracket 41 is fixedly connected to the outer side surface of the first support plate 11, and the motor bracket 41 can be used to provide fixed support for the drive motor 4; a support rod 42 is vertically fixedly provided between the lower end of the motor bracket 41 and the upper surface of the fixed base plate 1, and the support rod 42 is fixedly connected to the outer side surface of the first support plate 11. Through the setting of the support rod 42, the stability of the connection between the motor bracket 41, the fixed base plate 1 and the first support plate 11 can be increased.

[0018] When the utility model is in use, first, the driving motor 4 is turned on. At this time, the connecting shaft 13 is connected to the first support plate 11 by rotation, and the left outer wall of the cooling roller body 2 is fixedly connected to the connecting shaft 13 by concentricity. The rotation of the driving motor 4 can be used to drive the connecting shaft 13 and the cooling roller body 2 to rotate, so that the cast film wrapped around the outside of the cooling roller body 2 is guided and transported by the rotation of the cooling roller body 2. In addition, in this process, the fixed connection between the mounting block 21, the cooling water inlet pipe 5 and the second support plate 12, and the mounting block 21 are used. The rotation connection between the intermediate water tank 3 and the inner wall of the right opening of the cooling roller body 2 is realized by a sealed bearing, so that the mounting block 21 and the cooling water inlet pipe 5 can remain fixed while the cooling roller body 2 rotates; then, the pressure pump inside the intermediate water tank 3 is turned on. At this time, the pressure of the pressure pump can be used to transport the water inside the intermediate water tank 3 to the inside of the water cooler 7 through the pipeline b, and after the water cooler 7 is cooled, it is injected into the cooling water inlet pipe 5 through the water inlet conduit 71. Finally, the cooling water entering the cooling water inlet pipe 5 can be discharged through multiple nozzles 5. 1 is sprayed simultaneously and evenly to the upper end of the inner surface of the cooling roller body 2. At this time, the cooling water contacts the inner wall of the cooling roller body 2, so as to realize the cooling operation of the cooling roller body 2 and the cast film wrapped and transported outside thereof. This solves the problem that when the existing cooling roller is in use, the cooling water continuously absorbs the heat of the cooling roller wall during the process of flowing through the cavity, thereby gradually heating up. As a result, the cooling effect of the cooling water on the cooling roller becomes worse the closer it is to the water outlet, and a large temperature difference is formed between the water inlet end surface and the water outlet end surface of the cooling roller, which affects the cooling of the cast film. at the same time, through the setting of the pipeline a6, the communication between the intermediate water tank 3 and the inside of the cooling roller body 2 can be achieved, so that the water sprayed to the inside of the cooling roller body 2 falls and flows back to the intermediate water tank 3 again through the pipeline a6, so as to realize the recycling of cooling water; through the setting of the reinforcement ring 22 and the reinforcement rod 23, the reinforcement rod 23 can be used to increase the structural stability of the cooling water inlet pipe 5 when it is used as a whole without affecting the rotation of the cooling roller body 2; in general, the utility model has the advantages of stable and reasonable structural design and good use effect.

[0019] The above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, ordinary technicians in the field should understand that the specific implementation methods of the present invention can still be modified or replaced by equivalents. Any modification or equivalent replacement that does not depart from the spirit and scope of the present invention should be included in the scope of the claims of the present invention.

Claims

1. A cooling roller for cast film processing, comprising a fixed bottom plate (1), a cooling roller body (2) and an intermediate water tank (3), characterized in that: The fixed bottom plate (1) is arranged horizontally as a whole, and a first support plate (11) is fixedly arranged vertically on the left end of its upper surface, and a second support plate (12) is fixedly arranged vertically on the right end of its upper surface. A connecting shaft (13) is rotatably passed through the center of the upper end of the first support plate (11), and a drive motor (4) is fixedly connected to the left side of the connecting shaft (13). The cooling roller body (2) is arranged horizontally between the first support plate (11) and the second support plate (12), and is hollow inside. An opening is arranged on the right side surface, and the left side outer wall is fixedly connected concentrically with the connecting shaft (13). The inside of the opening on the right side of the cooling roller body (2) is rotatably connected to a mounting structure matching the structure at the opening through a sealed bearing. A mounting block (21), wherein a cooling water inlet pipe (5) is fixedly penetrated transversely at the center of the mounting block (21), and a pipeline a (6) is fixedly penetrated at the lower end, the left end of the cooling water inlet pipe (5) is located inside the cooling roller body (2), and a plurality of nozzles (51) are fixedly connected vertically at the upper end, and the right end is fixedly penetrated and connected to the upper end of the second support plate (12), the intermediate water tank (3) is located outside the second support plate (12), a pressure pump is arranged inside the intermediate water tank (3), the left side is interconnected with the pipeline a (6), and the right side is externally connected to a water cooler (7) through the pipeline b, and the water outlet channel at the upper end of the water cooler (7) and the right end of the cooling water inlet pipe (5) are interconnected through a water inlet conduit (71).

2. A cooling roller for cast film processing according to claim 1, characterized in that: A reinforcement ring (22) is fixedly provided at the center of the left inner wall of the cooling roller body (2), a reinforcement rod (23) is rotatably penetrated through the center of the reinforcement ring (22), and the left end of the cooling water inlet pipe (5) is concentrically fixedly connected to the reinforcement rod (23).

3. A cooling roller for cast film processing according to claim 1, characterized in that: A motor bracket (41) is fixedly arranged below the driving motor (4), and the motor bracket (41) is fixedly connected to the outer side surface of the first support plate (11).

4. A cooling roller for cast film processing as claimed in claim 3, characterized in that: A support rod (42) is vertically fixedly arranged between the lower end of the motor bracket (41) and the upper surface of the fixed bottom plate (1), and the support rod (42) is fixedly connected to the outer side surface of the first support plate (11).

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