A device for realizing multiple temperature zones on a single roller surface

Abstract

The present invention discloses a device for achieving multiple temperature zones on a single roller surface, belonging to the technical field of two-roller shearing and calendering machines. The device comprises a left rotary joint, a left water inlet pipe, a left water return chamber, a water distribution plate, a water return pipe, a left inner cylinder, a spacer, a right water inlet pipe, a right inner cylinder, a right water return chamber, and a right rotary joint. By controlling the left and right water inlet temperatures of the rollers and the different water circulation modes on the left and right sides, the device adjusts the roller surface temperature during shearing and calendering of the product, dividing the roller surface into three temperature zones: a high-temperature zone A, a temperature transition zone B, and a low-temperature zone C. This achieves a stepped temperature transition on the roller surface, meeting the varying roller surface temperature requirements during the calendering process.

Description

Technical Field

[0001] The invention belongs to the technical field of two-roller shearing calenders and relates to a device for realizing multiple temperature zones on a single roller surface. Background Art

[0002] The original two-roller shearing calender usually uses single-circuit heating and a single temperature zone on the roller surface to heat the material. In the actual material processing process, the plasticizing effect of the material processed by the single-temperature zone roller is not ideal. Experimental research has found that the feed end of the roller surface is set to high temperature, the discharge end is set to low temperature, and the roller surface temperature is stepped. This multi-temperature zone roller surface can achieve a better plasticizing effect on the material. From the above, it can be seen that the material has different temperature requirements for the roller surface, and different temperature zones need to be set to achieve a better material plasticizing effect. Summary of the Invention

[0003] In order to solve the problems in the above background technology, the present invention discloses a device for realizing multiple temperature zones on a single roller surface.

[0004] The technical solution of the present invention is:

[0005] A device for achieving multiple temperature zones on a single roller surface comprises a left rotary joint 1, a left water inlet pipe 2, a left water return chamber 3, a water distribution plate 4, a water return pipe 5, a left inner cylinder 6, a spacer 7, a right water inlet pipe 8, a right inner cylinder 9, a right water return chamber 10 and a right rotary joint 11.

[0006] The spacer 7 is arranged in the middle position inside the roller, and has smooth grooves on both sides for buffering water flow, neutralizing the water temperature on both sides, and connecting the high temperature zone and the low temperature zone; the roller surface corresponding to the spacer 7 is the temperature transition zone B.

[0007] The left rotary joint 1 is installed on the end face of the left shaft of the roller, and the left water inlet pipe 2 is installed in the center hole of the left shaft of the roller, one end of which is connected to the water inlet of the left rotary joint 1, and the other end is connected to the water distribution plate 4; the gap between the left water inlet pipe 2 and the center hole of the left shaft of the roller forms a left return water chamber 3, and the left return water chamber 3 is connected to the water outlet of the left rotary joint 1.

[0008] The left inner cylinder 6 is installed adjacent to the water distribution tray 4 and to the left of the spacer 7. A high-temperature water chamber is formed between the outer surface of the left inner cylinder 6 and the inner surface of the roller. A spiral structure within the left inner cylinder 6 facilitates heat exchange, and the corresponding roller surface is designated as high-temperature zone A. A return water pipe 5 is installed within the left inner cylinder 6 and communicates with a smooth groove on the left side of the spacer 7.

[0009] The water distribution plate 4 is provided with water distribution holes around it, which connect the left water inlet pipe 2 with the high-temperature water cavity; the water distribution plate 4 is provided with a through hole, which connects the left return water cavity 3 with the return water pipe 5, realizing the two functions of water inlet and water return.

[0010] High-temperature water flows into the left water inlet pipe 2 through the water inlet of the left rotary joint 1, flows into the high-temperature water cavity through the water distribution plate 4 for heat exchange, and after heat exchange, flows from the return pipe 5 through the smooth groove of the spacer 7, through the water distribution plate 4, the left return water cavity 3, and finally flows out from the water outlet of the left rotary joint 1.

[0011] The right rotary joint 11 is installed on the right end face of the roller shaft. The right inner cylinder 9 is installed on the right side of the spacer 7. A low-temperature water chamber is formed between the outer surface of the right inner cylinder 9 and the inner surface of the roller. The right inner cylinder 9 has a spiral structure that facilitates heat exchange, and the corresponding roller surface is the low-temperature zone C. A right water inlet pipe 8 is installed in the right inner cylinder 9. One end of the right water inlet pipe 8 is connected to the through hole on the left side of the right inner cylinder 9, and the other end extends into the center hole of the right shaft of the roller and is connected to the water inlet of the right rotary joint 11. The gap between the right water inlet pipe 8 and the right shaft of the roller forms a right return water chamber 10. The two ends of the right return water chamber 10 are respectively connected to the through hole on the right side of the right inner cylinder 9 and the water outlet of the right rotary joint 11.

[0012] Low-temperature water enters from the water inlet of the right rotary joint 11, flows into the low-temperature water chamber through the right water inlet pipe 8, exchanges heat with the roller, and the water after heat exchange flows out from the water outlet of the right rotary joint 11 through the right return water chamber 10.

[0013] Beneficial effects of the present invention: The present invention discloses a device for realizing multiple temperature zones on a single roller surface. By designing three different structures inside the roller and controlling the left and right water inlet temperatures and the left and right water circulation modes of the roller, the roller surface temperature is adjusted when the roller is shearing and calendering the product. The roller surface is divided into three temperature zones: high temperature zone A, temperature transition zone B, and low temperature zone C, realizing a temperature step transition and meeting the requirements of the material for different roller surface temperatures during the calendering process. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural diagram of the device described in the present invention.

[0015] In the figure: 1 left rotary joint; 2 left water inlet pipe; 3 left water return chamber; 4 water distribution tray; 5 water return pipe; 6 left inner cylinder; 7 spacer; 8 right water inlet pipe; 9 right inner cylinder; 10 right water return chamber; 11 right rotary joint; A high temperature zone; B temperature transition zone; C low temperature zone. DETAILED DESCRIPTION

[0016] The following examples and drawings further explain the specific embodiments of the present invention, but are not intended to limit the present invention.

[0017] like Figure 1 As shown, a device for achieving multiple temperature zones on a single roller surface mainly includes a left rotary joint 1, a left water inlet pipe 2, a left water return chamber 3, a water distribution plate 4, a water return pipe 5, a left inner cylinder 6, a spacer 7, a right water inlet pipe 8, a right inner cylinder 9, a right water return chamber 10 and a right rotary joint 11; the roller surface is divided into a high temperature zone A, a temperature transition zone B and a low temperature zone C.

[0018] The spacer 7 is arranged in the middle position inside the roller, and has smooth grooves on both sides for buffering water flow, neutralizing the water temperature on both sides, and connecting the high temperature zone and the low temperature zone; the roller surface corresponding to the spacer 7 is the temperature transition zone B.

[0019] The left rotary joint 1 is installed on the end face of the left shaft of the roller, and the left water inlet pipe 2 is installed in the center hole of the left shaft of the roller, one end of which is connected to the water inlet of the left rotary joint 1, and the other end is connected to the water distribution plate 4; the gap between the left water inlet pipe 2 and the center hole of the left shaft of the roller forms a left return water chamber 3, and the left return water chamber 3 is connected to the water outlet of the left rotary joint 1.

[0020] The left inner cylinder 6 is installed adjacent to the water distribution tray 4 and to the left of the spacer 7. A high-temperature water chamber is formed between the outer surface of the left inner cylinder 6 and the inner surface of the roller. A spiral structure within the left inner cylinder 6 facilitates heat exchange, and the corresponding roller surface is designated as high-temperature zone A. A return water pipe 5 is installed within the left inner cylinder 6 and communicates with a smooth groove on the left side of the spacer 7.

[0021] The water distribution plate 4 is provided with water distribution holes around it, which connect the left water inlet pipe 2 with the high-temperature water cavity; the water distribution plate 4 is provided with a through hole, which connects the left return water cavity 3 with the return water pipe 5, realizing the two functions of water inlet and water return.

[0022] The right rotary joint 11 is installed on the right shaft end face of the roller. The right inner cylinder 9 is installed on the right side of the spacer 7. A low-temperature water chamber is formed between the outer surface of the right inner cylinder 9 and the inner surface of the roller. The right inner cylinder 9 has a spiral structure, which is conducive to heat exchange. The corresponding roller surface is the low-temperature zone C. A right water inlet pipe 8 is installed in the right inner cylinder 9. One end of the right water inlet pipe 8 is connected to the through hole on the left side of the right inner cylinder 9, and the other end extends to the center hole of the right shaft of the roller and is connected to the water inlet of the right rotary joint 11. The gap between the right water inlet pipe 8 and the right shaft of the roller forms a right return water chamber 10. The two ends of the right return water chamber 10 are respectively connected to the through hole on the right side of the right inner cylinder 9 and the water outlet of the right rotary joint 11.

[0023] When the roller is working, high-temperature water enters from the water inlet of the left rotary joint 1, flows through the left water inlet pipe 2 to the water distribution plate 4, and there are water distribution holes around the water distribution plate 4, which evenly distributes the high-temperature water to the high-temperature water cavity between the outer surface of the left inner cylinder 6 and the inner surface of the roller, exchanges heat with the roller, and forms a high-temperature area A on the roller surface. The water after heat exchange flows through the spacer 7, the return pipe 5, the water distribution plate 4, the left return water cavity 3, and finally flows out from the water outlet of the left rotary joint 1.

[0024] When the roller is working, low-temperature water enters from the water inlet of the right rotary joint 11, flows into the low-temperature water cavity between the outer surface of the right inner cylinder 9 and the inner surface of the roller through the right water inlet pipe 8, exchanges heat with the roller, and forms a low-temperature zone C on the roller surface. The water after heat exchange flows out from the water outlet of the right rotary joint 11 through the right return water cavity 10.

[0025] When the roller is working and the left and right water form a stable circuit, the smooth groove on the left side of the spacer 7 is filled with high-temperature water, and the smooth groove on the right side of the spacer 7 is filled with low-temperature water. The temperatures on both sides are neutralized, and heat is exchanged with the roller, forming a temperature transition zone B on the roller surface.

[0026] As mentioned above, the roller surface is divided into high temperature zone A, temperature transition zone B and low temperature zone C. The roller surface temperature transitions step by step, and the material is sheared and calendered by the roller to achieve a better plasticizing effect of the material.

Claims

1. A device for achieving multiple temperature zones on a single roller surface, characterized in that: The device comprises a left rotary joint (1), a left water inlet pipe (2), a left water return chamber (3), a water distribution plate (4), a water return pipe (5), a left inner cylinder (6), a spacer (7), a right water inlet pipe (8), a right inner cylinder (9), a right water return chamber (10) and a right rotary joint (11); The spacer (7) is arranged in the middle of the roller, and has smooth grooves on both sides thereof, which are used to buffer the water flow, neutralize the water temperature on both sides, and connect the high temperature zone and the low temperature zone at the same time; the roller surface corresponding to the spacer (7) is the temperature transition zone; The left rotary joint (1) is mounted on the end face of the left shaft of the roller, and the left water inlet pipe (2) is mounted in the center hole of the left shaft of the roller, one end of which is connected to the water inlet of the left rotary joint (1), and the other end is connected to the water distribution plate (4); the gap between the left water inlet pipe (2) and the center hole of the left shaft of the roller forms a left water return chamber (3), and the left water return chamber (3) is connected to the water outlet of the left rotary joint (1); The left inner cylinder (6) is installed adjacent to the water distribution plate (4) and is located on the left side of the spacer (7); a high-temperature water cavity is formed between the outer surface of the left inner cylinder (6) and the inner surface of the roller, and the corresponding roller surface is a high-temperature area; a return water pipe (5) is installed in the left inner cylinder (6), and the return water pipe (5) is connected to the smooth groove on the left side of the spacer (7); The water distribution plate (4) connects the left water inlet pipe (2) with the high-temperature water chamber, and connects the left water return chamber (3) with the water return pipe (5), thereby realizing the two functions of water inlet and water return; The right rotary joint (11) is installed on the right shaft end face of the roller; the right inner cylinder (9) is installed on the right side of the spacer (7), and a low-temperature water cavity is formed between the outer surface of the right inner cylinder (9) and the inner surface of the roller, and the corresponding roller surface is a low-temperature zone; a right water inlet pipe (8) is installed in the right inner cylinder (9), one end of the right water inlet pipe (8) is connected to the through hole on the left side of the right inner cylinder (9), and the other end extends to the center hole of the right shaft of the roller and is connected to the water inlet of the right rotary joint (11); the gap between the right water inlet pipe (8) and the right shaft of the roller forms a right return water cavity (10), and the two ends of the right return water cavity (10) are respectively connected to the through hole on the right side of the right inner cylinder (9) and the water outlet of the right rotary joint (11).

2. The device for realizing multiple temperature zones on a single roller surface according to claim 1, characterized in that: The water distribution plate (4) is provided with water distribution holes around its periphery, which connect the left water inlet pipe (2) with the high-temperature water cavity; the water distribution plate (4) is provided with a through hole, which connects the left return water cavity (3) with the return water pipe (5).

3. The device for realizing multiple temperature zones on a single roller surface according to claim 1 or 2, characterized in that: The left inner tube (6) and the right inner tube (9) both have spiral structures, which are beneficial to heat exchange.

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