Casting roller water cooling structure

Abstract

The utility model relates to a casting roller water cooling structure, which comprises a roller and a three-way valve, a cooling channel is arranged inside the roller, a water inlet and a water outlet are respectively arranged on two sides of the roller, the water inlet is connected with a water inlet pipeline, the water outlet is connected with a water outlet pipeline, and the other end of the water outlet pipeline is connected with a connector B of the three-way valve. A connector C of the three-way valve is connected with a water inlet pipeline, a connector A of the three-way valve is connected with a drainage pipeline, the water inlet pipeline is connected with a water supplementing pipeline, and a water pump is arranged at the input end of the water inlet pipeline. The plastic film cooling device is reasonable in design, simple in structure and convenient to use, the temperature of the roller can be effectively controlled, the production requirement is met, and meanwhile it is avoided that cooling of a plastic film is affected by too high temperature of the roller.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of cast roll water cooling structures. BACKGROUND

[0002] In the processing of cast film, the granular raw materials need to be melted to a molten state, and then the raw materials are extruded into a film. The temperature of the just-formed cast film is relatively high, and it cannot be directly wound. It needs to be conveyed to the next process by multiple rollers. After a long time of rotation operation, the temperature of the roller gradually rises. In order to maintain the optimal temperature of the roller, cooling is needed. If cooling is not performed, it will affect the natural cooling effect of the plastic film. SUMMARY

[0003] The utility model improves the above problems. The technical problem to be solved by the utility model is to provide a cast roll water cooling structure that is easy to use and effectively controls the temperature of the roller.

[0004] The utility model is constituted as follows. It includes a roller with a cooling channel inside and a three-way valve. The roller has a water inlet and a water outlet on each side. The water inlet is connected to a water inlet pipe. The water outlet is connected to a water outlet pipe. The other end of the water outlet pipe is connected to the interface B of the three-way valve. The interface C of the three-way valve is connected to the water inlet pipe. The interface A of the three-way valve is connected to a drainage pipe. The water inlet pipe is connected to a water replenishment pipe. The water inlet pipe has a water pump at the input end.

[0005] Further, a water outlet branch pipe is arranged between the output end of the water outlet pipe and the input end of the drainage pipe. The water outlet branch pipe is provided with a valve A.

[0006] Further, the water replenishment pipe has a valve B at the output end.

[0007] Further, the drainage pipe has a valve C.

[0008] Further, the water replenishment pipe and the water inlet pipe are connected by a flange A. The water inlet pipe at the input end of the water pump is provided with a flange B.

[0009] Further, the roller has a hollow shaft on each side. The hollow shaft has a hollow pipe inside that communicates with the cooling channel. The two hollow shafts are connected to the water inlet pipe and the water outlet pipe through rotary joints.

[0010] Further, the three-way valve is an electromagnetic three-way valve.

[0011] Compared with the prior art, this utility model has the following advantages: The device has a simple structure, reasonable design, and is easy to use. It effectively adjusts the temperature of the roller through water cooling. When the roller temperature is high and cooling is required, cold water is pumped into the inlet pipe through the water supply pipe, mixing with the circulating water and cooling it. The cooling circulating water then circulates and cools the roller internally through the inlet pipe and inlet. When the roller temperature needs to be increased, cold water is not required. The circulating water passes through the roller, roller outlet, outlet pipe, outlet branch pipe, A and C ports of the three-way valve, and inlet pipe before returning to the roller for internal circulation, thereby increasing the temperature. When the circulating hot water needs to be drained, the A and C ports of the three-way valve are opened, and the hot water is output through the outlet pipe and drain pipe. When the temperature of the circulating water needs to be adjusted, such as to maintain the temperature, only a portion of the hot water needs to be released through the drain pipe, and a portion of cold water is introduced through the water supply pipe, thereby achieving temperature control of the circulating water. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model. Detailed Implementation

[0013] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0014] Example 1: As Figure 1 As shown, in this embodiment, a water-cooled casting roller structure is provided, including a roller 1 with an internal cooling channel and a three-way valve 2. The roller is provided with an inlet 101 and an outlet 102 on both sides. The inlet is connected to an inlet pipe 3, and the outlet is connected to an outlet pipe 4. The other end of the outlet pipe is connected to the interface B of the three-way valve. The interface C of the three-way valve is connected to the inlet pipe. The interface A of the three-way valve is connected to a drain pipe 5. The inlet pipe is connected to a water supply pipe 6, and a water pump 7 is provided at the input end of the inlet pipe.

[0015] During operation, when the roller temperature is high and cooling is needed, cold water is pumped into the inlet pipe through the water supply pipe, mixing with the circulating water and cooling it. This cooling circulating water circulates through the inlet pipe and inlet to the inside of the roller for internal cooling. When the roller temperature needs to be increased, cold water is not needed. The circulating water flows sequentially through the roller, roller outlet, outlet pipe, outlet branch pipe, ports A and C of the three-way valve, and inlet pipe before returning to the inside of the roller for internal circulation, thus increasing the temperature. The circulating water can circulate several times according to the above route to raise the temperature. When the circulating hot water needs to be drained, ports A and C of the three-way valve are opened, and the hot water is output through the outlet pipe and drain pipe. When the circulating water temperature needs to be adjusted, such as to maintain the temperature, only a portion of the hot water needs to be released along the drain pipe, and a portion of cold water is introduced through the water supply pipe, thus achieving temperature control of the circulating water.

[0016] Of course, you can also drain all the hot water circulating inside and then refill it with fresh cold water.

[0017] In this embodiment of the utility model, a branch pipe 8 is provided between the output end of the water outlet pipe and the input end of the drainage pipe, and a valve A9 is provided on the branch pipe.

[0018] In this embodiment of the invention, another water pump may be installed outside the drainage pipe.

[0019] In this embodiment of the utility model, the output end of the water supply pipe is provided with valve B10.

[0020] In this embodiment of the invention, the drainage pipe is equipped with a valve C11.

[0021] In this embodiment of the utility model, the water supply pipe and the water inlet pipe are connected by flange A12, and flange B13 is provided at the water inlet pipe located at the water pump input end.

[0022] In this embodiment of the utility model, hollow shafts 14 are provided on both sides of the roller, and hollow pipes communicating with the cooling channel are provided inside the hollow shafts. The two hollow shafts are connected to the water inlet pipe and the water outlet pipe respectively via rotary joints 15. Rotary joints are existing technology and will not be described in detail here.

[0023] In this embodiment of the invention, the three-way valve is an electromagnetic three-way valve.

[0024] In this embodiment of the invention, valves A, B, and C may be solenoid valves.

[0025] Example 2: Based on Example 1, in this embodiment of the present invention, a temperature sensor for detecting temperature is provided on the roller.

[0026] In this embodiment of the utility model, a frame is also included, on which the roller is disposed. A controller is also disposed within the frame, and the controller is electrically connected to a three-way valve, valve A, valve B, valve C, and a temperature sensor.

[0027] Unless otherwise stated, if any of the technical solutions disclosed in this utility model discloses a numerical range, then the disclosed numerical range is a preferred numerical range. Any person skilled in the art should understand that the preferred numerical range is merely one among many feasible numerical values ​​that has a more obvious or representative technical effect. Because there are many numerical values, it is impossible to list them all. Therefore, this utility model discloses only some numerical values ​​to illustrate the technical solutions of this utility model. Furthermore, the numerical values ​​listed above should not constitute a limitation on the scope of protection of this utility model.

[0028] Meanwhile, if the present invention discloses or relates to mutually fixedly connected parts or structural components, then unless otherwise stated, the fixed connection can be understood as: a detachable fixed connection (e.g., using bolts or screws), or a non-detachable fixed connection (e.g., riveting, welding). Of course, the mutually fixed connection can also be replaced by an integral structure (e.g., manufactured by casting process) (except where it is obviously impossible to use an integral forming process).

[0029] In addition, unless otherwise stated, the terms used in any of the technical solutions disclosed in this utility model to indicate positional relationships or shapes include states or shapes that are similar to, close to, or approximate with those states or shapes.

[0030] Any component provided by this utility model can be assembled from multiple individual components, or it can be a single component manufactured by a one-piece molding process.

[0031] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and not to limit it; although the utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications can still be made to the specific implementation of this utility model or equivalent substitutions can be made to some technical features without departing from the spirit of the technical solution of this utility model, and all such modifications and substitutions should be covered within the scope of the technical solution claimed by this utility model.

Claims

1. A water-cooled structure for a casting roller, characterized in that, The device includes a roller with an internal cooling channel and a three-way valve. The roller has an inlet and an outlet on both sides. The inlet is connected to an inlet pipe, and the outlet is connected to an outlet pipe. The other end of the outlet pipe is connected to port B of the three-way valve. Port C of the three-way valve is connected to the inlet pipe. Port A of the three-way valve is connected to a drain pipe. The inlet pipe is connected to a water supply pipe, and a water pump is installed at the input end of the inlet pipe.

2. The water-cooled structure for a casting roller according to claim 1, characterized in that, A branch pipe is also provided between the output end of the outlet pipe and the input end of the drainage pipe, and a valve A is provided on the branch pipe.

3. The water-cooled structure for a casting roller according to claim 1, characterized in that, The water supply pipe is equipped with valve B at its output end.

4. The water-cooled structure for a casting roller according to claim 1, characterized in that, The drainage pipe is equipped with valve C.

5. The water-cooled structure for a casting roller according to claim 1, characterized in that, The water supply pipe and the water inlet pipe are connected by flange A, and flange B is provided at the water inlet pipe located at the water pump input end.

6. The water-cooled structure for a casting roller according to claim 1, characterized in that, Hollow shafts are provided on both sides of the roller, and hollow pipes communicating with the cooling channel are provided inside the hollow shafts. The two hollow shafts are connected to the water inlet pipe and the water outlet pipe respectively via rotary joints.

7. The water-cooled structure for a casting roller according to claim 1, characterized in that, The three-way valve is an electromagnetic three-way valve.

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