Cooling device for cast film production

Abstract

The utility model discloses a cooling device for cast film production, relates to the technical field of cast film production equipment structures, and aims to solve the problems that the use efficiency of the cooling device is low and the cooling effect of the cooling device is influenced as the cooling structure of the conventional cooling device is too complicated. A mounting chamber is arranged in the roller body, a steel roller inner container is arranged in the mounting chamber, blocking seats are arranged on the two sides of the steel roller inner container, a water inlet channel is arranged in one end of the steel roller inner container, first communicating openings are formed in the periphery of the water inlet channel, a water outlet channel is arranged at the other end of the steel roller inner container, and a water outlet is formed in the other end of the steel roller inner container. A second communicating opening is formed in the periphery of the water outlet channel, spiral blades are arranged on the periphery of the outer wall of the steel roller inner container, a first sealing plug is installed on one side of the interior of the roller body, a first connecting shaft is arranged at one end of the first sealing plug, and a second sealing plug is arranged on the other side of the interior of the roller body. A second connecting shaft is arranged at one end of the second sealing plug.

Description

Technical Field

[0001] This utility model relates to the technical field of cast film production equipment structure, specifically a cooling device for cast film production. Background Technology

[0002] Cast film is a type of non-stretched, non-oriented flat extrusion film produced by rapidly cooling a melt. There are two methods: single-layer casting and multi-layer co-extrusion. Compared to blown film, it features faster production speed, higher output, and superior transparency, gloss, and thickness uniformity. Because it is a flat extrusion film, subsequent processes such as printing and lamination are extremely convenient, making it widely used in packaging for food, pharmaceuticals, textiles, flowers, and daily necessities.

[0003] A search revealed that authorization announcement number CN220146495U discloses a casting roller cooling device for PVB film production, belonging to the field of casting roller technology. The device includes a casting roller body with an inlet and an outlet at its left and right ends, respectively. Movable grooves are formed on both the upper and lower surfaces of the casting roller body. Movable blocks are slidably inserted into the interior of these grooves. An annular baffle is fixedly installed on the top of the movable block on the same side, and a cooling chamber is formed inside the annular baffle. A connecting pipe is fixedly connected to the surface of the casting roller body. This allows the position of the movable blocks within the movable grooves to be adjusted according to the size of the PVB film, thereby moving the annular baffle to both sides of the PVB film. Fastening bolts connect and fix the positioning blocks to the positioning holes on the surface of the casting roller body, thus limiting the position of the annular baffles. The two annular baffles limit the position of the PVB film, preventing positional displacement and ensuring efficient cooling.

[0004] However, the existing cooling devices have overly complex cooling structures, resulting in low efficiency and affecting the cooling effect. Therefore, there is an urgent need in the market for a cooling device for cast film production to solve these problems. Utility Model Content

[0005] The purpose of this invention is to provide a cooling device for casting film production, in order to solve the problem mentioned in the background art that the cooling structure of the existing cooling device is too complex, resulting in low efficiency and affecting the cooling effect of the cooling device.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a cooling device for cast film production, comprising a roller body, an installation chamber inside the roller body, a steel roller inner liner installed inside the installation chamber, baffles on both sides of the steel roller inner liner, a water inlet channel inside one end of the steel roller inner liner, a connecting port one around the water inlet channel, a water outlet channel at the other end of the steel roller inner liner, a connecting port two around the water outlet channel, spiral blades around the outer wall of the steel roller inner liner, a sealing plug one installed on one side of the inside of the roller body, and a sealing plug two installed on the other side of the inside of the roller body.

[0007] Preferably, the inner liner of the steel roller is provided with a weight reduction chamber.

[0008] Preferably, there are several connecting ports, which are distributed sequentially around the water inlet channel.

[0009] Preferably, there are several connecting ports 2, which are distributed sequentially around the water outlet channel.

[0010] Preferably, the spiral blade and the inner liner of the steel roller are an integral structure, the spiral blade is fitted with the mounting chamber, and a cooling channel is formed at the gap between the spiral blade and the mounting chamber.

[0011] Preferably, the sealing plug is welded to the roller body, one end of the sealing plug is provided with a connecting shaft, and the interior of the sealing plug is provided with a water inlet, which is correspondingly provided with the water inlet channel.

[0012] Preferably, the second sealing plug is welded to the roller body, one end of the second sealing plug is provided with a second connecting shaft, and the interior of the second sealing plug is provided with a water outlet, which is correspondingly provided with a water outlet channel.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. This cooling device for casting film production introduces coolant through an inlet provided by a sealing plug, allowing the coolant to enter the water inlet channel inside the inner liner of the steel roller. The coolant then flows through a spirally arranged cooling channel, thus cooling the molten casting film on the outer wall of the roller, enabling casting film production. The coolant enters the outlet channel from a connecting port at the other end of the inner liner of the steel roller and is then discharged through an outlet provided by a sealing plug, allowing the coolant to be recycled.

[0015] 2. In this type of cooling device for cast film production, a weight-reducing chamber is provided inside the inner liner of the steel roller, which can reduce the weight of the inner liner of the steel roller. A spiral cooling channel is formed between the spiral blades and the mounting chamber, which allows the coolant to flow spirally, thereby improving the cooling effect of the coolant and giving the roller body a better cooling effect. Attached Figure Description

[0016] Figure 1 This is the overall front view of the present invention;

[0017] Figure 2 This is an overall sectional view of the present invention;

[0018] Figure 3 This is a structural diagram of the inner liner of the steel roller of this utility model;

[0019] Figure 4 For the present utility model Figure 2 A magnified view of a portion of area A.

[0020] In the diagram: 1. Roller body; 101. Installation chamber; 2. Inner liner of steel roller; 201. Weight reduction chamber; 3. Baffle; 4. Water inlet channel; 5. Connecting port one; 6. Water outlet channel; 7. Connecting port two; 8. Spiral blade; 9. Cooling channel; 10. Sealing plug one; 1001. Connecting shaft one; 1002. Water inlet; 11. Sealing plug two; 1101. Connecting shaft two; 1102. Water outlet. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] Please see Figure 1-4 This utility model provides an embodiment of a cooling device for casting film production, comprising a roller body 1, an installation chamber 101 inside the roller body 1, a steel roller inner liner 2 inside the installation chamber 101, baffles 3 on both sides of the steel roller inner liner 2, a water inlet channel 4 inside one end of the steel roller inner liner 2, a connecting port 5 around the water inlet channel 4, a water outlet channel 6 at the other end of the steel roller inner liner 2, a connecting port 7 around the water outlet channel 6, spiral blades 8 around the outer wall of the steel roller inner liner 2, a sealing plug 10 on one side inside the roller body 1, and a sealing plug 11 on the other side inside the roller body 1. It should be noted that, in order to save space and highlight the innovative elements of this patent, such as the working principle and process of casting film production, it will not be elaborated in this patent.

[0023] In use, the coolant is introduced through the inlet 1002 of the sealing plug 10, allowing it to enter the water inlet channel 4 of the inner liner of the steel roller 2. Then, it enters the cooling channel 9 located between the spiral blade 8 and the mounting chamber 101 through the connecting port 5. The coolant then flows through the spirally arranged cooling channel 9 and enters the water outlet channel 6 from the connecting port 7 at the other end of the inner liner of the steel roller 2. Finally, it is discharged through the water outlet 1102 of the sealing plug 11.

[0024] Please see Figure 2 The inner liner of the steel roller 2 is provided with a weight reduction chamber 201, which can reduce the weight of the inner liner of the steel roller 2.

[0025] Please see Figure 2 , Figure 3 and Figure 4 Several connecting ports 5 are provided, and these ports 5 are distributed around the water inlet channel 4. This arrangement allows water entering the water inlet channel 4 to enter the interior of the cooling channel 9 through the connecting ports 5, thus giving the roller body 1 a good cooling effect, thereby cooling and shaping the cast film material through the roller body 1.

[0026] Please see Figure 2 and Figure 3 Several connecting ports 2 7 are provided, and these connecting ports 2 7 are distributed around the water outlet channel 6. Through the connecting ports 2 7, cooling water can enter the interior of the water outlet channel 6 and then be discharged through the water outlet channel 6. This allows the coolant to be recycled, which can effectively save resources.

[0027] Please see Figure 2 , Figure 3 and Figure 4 The spiral blade 8 and the inner liner of the steel roller 2 are an integral structure. The spiral blade 8 is fitted with the mounting chamber 101. A cooling channel 9 is formed in the gap between the spiral blade 8 and the mounting chamber 101, which can make the structure between the spiral blade 8 and the inner liner of the steel roller 2 more solid. The cooling liquid can flow through the cooling channel 9, so that the roller body 1 has a good cooling effect, which can effectively process and produce the cast film.

[0028] Please see Figure 2 and Figure 4The sealing plug 10 is welded to the roller body 1. One end of the sealing plug 10 is provided with a connecting shaft 1001. The inside of the sealing plug 10 is provided with a water inlet 1002. The water inlet 1002 is correspondingly provided with the water inlet channel 4, which can make the structure between the sealing plug 10 and the roller body 1 more robust. Through the correspondingly provided water inlet 1002 and water inlet channel 4, the cooling water entering from the water inlet 1002 can enter the interior of the water inlet channel 4.

[0029] Please see Figure 2 The sealing plug 21 is welded to the roller body 1. One end of the sealing plug 21 is provided with a connecting shaft 2101. The interior of the sealing plug 21 is provided with a water outlet 1102. The water outlet 1102 is correspondingly provided with the water outlet channel 6, which can make the structure between the sealing plug 21 and the roller body 1 more robust. Through the correspondingly provided water outlet 1102 and water outlet channel 6, the cooling water discharged from the water outlet channel 6 can be discharged through the water outlet 1102, so that the cooling water can be recycled.

[0030] Working principle: During use, coolant is introduced through the inlet 1002 of the sealing plug 10, allowing it to enter the water inlet channel 4 of the inner liner of the steel roller 2. Then, it flows through the connecting ports 5 around the water inlet channel 4 into the cooling channel 9 located between the spiral blade 8 and the mounting chamber 101. The coolant then flows through the spirally arranged cooling channel 9, lowering the temperature of the outer wall of the roller body 1. This effectively cools the molten cast film, allowing it to cool and solidify, thus enabling the production of the cast film. The coolant enters the outlet channel 6 through multiple connecting ports 7 at the other end of the inner liner of the steel roller 2, then flows through the outlet channel 6 into the outlet 1102 of the sealing plug 11, and finally exits through the outlet 1102. This allows the coolant to be recycled.

[0031] It will be apparent to those skilled in the art that this invention 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 essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A cooling device for the production of cast film comprising a drum body (1), characterized in that: The inside of the roller body (1) is provided with a mounting chamber (101), the inside of the mounting chamber (101) is provided with a steel roller liner (2), both sides of the steel roller liner (2) are provided with a blocking seat (3), the inside of one end of the steel roller liner (2) is provided with a water inlet channel (4), the periphery of the water inlet channel (4) is provided with a communication port one (5), the other end of the steel roller liner (2) is provided with a water outlet channel (6), the periphery of the water outlet channel (6) is provided with a communication port two (7), the periphery of the outer wall of the steel roller liner (2) is provided with a spiral blade (8), one side of the inside of the roller body (1) is provided with a sealing plug one (10), the other side of the inside of the roller body (1) is provided with a sealing plug two (11).

2. A cooling device for cast film production according to claim 1, characterized in that: The inside of the steel roller liner (2) is provided with a weight reduction chamber (201).

3. A cooling device for cast film production according to claim 2, characterized in that: The communication port one (5) is provided with a plurality of communication port ones (5), and the plurality of communication port ones (5) are sequentially distributed around the water inlet channel (4).

4. A cooling device for cast film production according to claim 3, characterized in that: The communication port two (7) is provided with a plurality of communication port twos (7), and the plurality of communication port twos (7) are sequentially distributed around the water outlet channel (6).

5. A cooling device for cast film production according to claim 4, characterized in that: The spiral blade (8) and the steel roller liner (2) are an integral structure, the spiral blade (8) is attached to the mounting chamber (101), and the spiral blade (8) and the mounting chamber (101) form a cooling channel (9) at the gap.

6. A cooling device for cast film production according to claim 5, characterized in that: The sealing plug one (10) and the roller body (1) are welded, one end of the sealing plug one (10) is provided with a connecting shaft one (1001), the inside of the sealing plug one (10) is provided with a water inlet (1002), and the water inlet (1002) is correspondingly provided with the water inlet channel (4).

7. A cooling device for cast film production according to claim 6, characterized in that: The sealing plug two (11) and the roller body (1) are welded, one end of the sealing plug two (11) is provided with a connecting shaft two (1101), the inside of the sealing plug two (11) is provided with a water outlet (1102), and the water outlet (1102) is correspondingly provided with the water outlet channel (6).

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