Calendering roller with protection function

Abstract

The utility model relates to the technical field of calendering rollers, and discloses a calendering roller with a protection function, which comprises a main roller, the end part of the main roller is fixedly connected with a connecting sleeve, and a cooling assembly is arranged in the main roller. The cooling assembly comprises a sleeve, a heat exchange cavity, a liquid inlet, a flow mixing cavity, a blocking belt, an arc-shaped groove, a flow disturbing cavity, a sliding groove, a round rod, a flow disturbing blade and a spiral belt. Through the arrangement of the sleeve in the main roller, the cooling liquid filled in the heat exchange cavity and the mixed flow cavity has a certain temperature difference, the temperature of the cooling liquid in the heat exchange cavity is high and is closer to the temperature of a glass raw material in a molten state, and the cooling liquid is mixed and exchanged towards the interior of the heat exchange cavity through the liquid inlet; therefore, the temperature in the heat exchange cavity can be stably reduced, and the situation that too high temperature difference exists between the heat exchange cavity and the inner wall of the main roller, the mechanical performance of the main roller is changed, and the service life of the main roller is shortened is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of calendering rollers, in particular to a calendering roller with a protective function. Background Art

[0002] During the production of embossed glass, the temperature of the glass raw materials when they are discharged from the furnace is about 1500 degrees Celsius. The production of embossed glass requires the use of two sets of calendering rollers arranged in the same plane to cooperate in production. The patterns set on the arc-shaped outer surface of the calendering rollers are used to press the surface of the molten glass raw materials to produce certain textures. After cooling, special embossed glass can be formed to improve the ornamental value of the glass. However, the temperature of the molten glass raw materials when in contact with the calendering rollers is between 1200 degrees Celsius and 1250 degrees Celsius. Therefore, it is necessary to consider protecting the calendering rollers during their use.

[0003] According to a calender with a continuous cooling function disclosed (publication number: CN214982650U), in the above application, water is transported into the rollers by a water pump to cool the upper and lower calender rollers in operation, so that the temperature of the working surface of the rollers does not rise, avoiding the roller surface sticking phenomenon, improving work efficiency and work quality, and increasing the service life of the upper and lower calender rollers.

[0004] However, in actual use of the above equipment, since the calendering roller itself needs to contact the glass raw material with a higher temperature, the surface temperature of the calendering roller is continuously kept at a high state, while the temperature of the coolant flowing inside is relatively low in the cooling cycle state. The direct contact and heat exchange with the inner wall of the calendering roller may cause the temperature of the calendering roller itself to be too low, affecting the temperature of the embossed glass during the pressing process, and thus causing production defects in the embossed glass. In view of this, we propose a calendering roller with a protective function. Utility Model Content

[0005] The utility model aims to provide a calendering roller with a protective function to solve the problems raised in the above background technology.

[0006] To achieve the above object, the utility model provides the following technical solution: a calendering roller with a protective function, comprising a main roller, the end of the main roller is fixedly connected with a connecting sleeve, and a cooling component is arranged inside the main roller, and the cooling component comprises:

[0007] A sleeve, wherein the inner wall of the main roller is fixedly mounted with the sleeve, and the cavity between the arc-shaped outer wall of the sleeve and the inner wall of the main roller forms a heat exchange cavity;

[0008] A liquid inlet, the inner wall of the sleeve is provided with a liquid inlet, a mixed flow chamber is provided inside the sleeve, and a barrier strip is fixedly installed on the outer wall of the liquid inlet close to the mixed flow chamber;

[0009] A spoiler cavity is provided on the inner wall of the sleeve, a sliding groove is provided on the side wall of the spoiler cavity, a round rod is provided inside the sliding groove, and a spoiler blade is fixedly installed on the arc-shaped outer wall of the round rod.

[0010] Preferably, an arc-shaped groove is provided on the arc-shaped outer wall of the sleeve, and a spiral belt is provided on the arc-shaped inner surface of the heat exchange cavity.

[0011] Preferably, the liquid inlet is arranged at an angle, and the liquid inlet is inclined toward the left side, so that the coolant input from the right end of the main roller can flow into the heat exchange cavity along the inner surface of the liquid inlet under inertia.

[0012] Preferably, the number of the liquid inlets is three groups, and the three groups of liquid inlets are evenly distributed in a circular array on the arc-shaped outer wall of the sleeve, thereby improving the exchange efficiency of the coolant between the mixing chamber and the heat exchange chamber.

[0013] Preferably, the length of the sliding groove is smaller than the length of the spoiler cavity to avoid the inner wall of the spoiler cavity interfering with the rotation of the spoiler blade, and the round rod is adapted to the sliding groove.

[0014] Preferably, the spiral belt is arranged in a spiral shape on the arc-shaped inner surface of the heat exchange cavity, and the outer wall of the spiral belt is arranged obliquely to promote the coolant flowing to one side of the inner surface of the heat exchange cavity to flow toward one side of the sleeve.

[0015] Compared with the prior art, the utility model provides a calendering roller with a protective function, which has the following beneficial effects:

[0016] 1. The calendering roller with a protective function, through the setting of the internal sleeve of the main roller, makes the coolant filled in the heat exchange chamber and the mixed flow chamber have a certain temperature difference, and the temperature of the coolant in the heat exchange chamber is higher, which is closer to the temperature of the glass raw material in a molten state, and the coolant is mixed and exchanged toward the heat exchange chamber through the liquid inlet, so that the temperature in the heat exchange chamber can be reduced more steadily without causing an excessively high temperature difference between the heat exchange chamber and the inner wall of the main roller, which will cause the mechanical properties of the main roller itself to change, resulting in a reduction in the service life of the main roller.

[0017] 2. The calendering roller with a protective function is provided with a spiral belt on the inner surface of the heat exchange chamber to promote the coolant flowing to one side of the inner surface of the heat exchange chamber to flow toward one side of the sleeve, and the arc groove is arranged between the liquid inlet and the turbulent chamber, so that the coolant in the heat exchange chamber can be better mixed and cooled when the coolant is input into the liquid inlet through the guidance of the arc inner surface of the arc groove, thereby ensuring the continuous cooling effect of the main roller. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the cross-sectional structure of the utility model;

[0020] Figure 3 This is a schematic diagram of the cross-sectional structure of the main roller end of the utility model;

[0021] Figure 4 This is a schematic diagram of the cross-sectional structure of the casing of the utility model.

[0022] In the figure: 1. main roller; 2. connecting sleeve; 3. heat exchange chamber; 4. casing; 5. liquid inlet; 6. shielding belt; 7. arc groove; 8. mixed flow chamber; 9. spoiler chamber; 10. sliding groove; 11. round rod; 12. spoiler blade; 13. spiral belt. DETAILED DESCRIPTION

[0023] like Figure 1-Figure 4 As shown, the utility model provides a technical solution: a calendering roller with a protective function, comprising a main roller 1, the end of the main roller 1 is fixedly connected with a connecting sleeve 2, the interior of the main roller 1 is provided with a cooling component, the cooling component comprises a sleeve 4, a heat exchange chamber 3, a liquid inlet 5, a mixing chamber 8, a blocking belt 6, an arc groove 7, a spoiler chamber 9, a sliding groove 10, a round rod 11, a spoiler blade 12 and a spiral belt 13.

[0024] In one embodiment of the utility model, a sleeve 4 is fixedly installed on the inner wall of the main roller 1, and a heat exchange chamber 3 is formed between the arc-shaped outer wall of the sleeve 4 and the inner wall of the main roller 1. A liquid inlet 5 is provided on the inner wall of the sleeve 4, and a mixed flow chamber 8 is provided inside the sleeve 4. A barrier belt 6 is fixedly installed on the outer wall of the liquid inlet 5 close to the mixed flow chamber 8. An arc-shaped groove 7 is provided on the arc-shaped outer wall of the sleeve 4, a spoiler chamber 9 is provided on the inner wall of the sleeve 4, and a sliding groove 10 is provided on the side wall of the spoiler chamber 9. A round rod 11 is arranged inside the sliding groove 10, and a spoiler blade 12 is fixedly installed on the arc-shaped outer wall of the round rod 11. A spiral belt 13 is provided on the arc-shaped inner surface of the heat exchange chamber 3.

[0025] Furthermore, a bearing is sleeved on the arc-shaped outer wall of the connecting sleeve 2 to facilitate the mounting of the connecting sleeve 2 on external equipment, and the bearing is installed to facilitate the connection between the end of the connecting sleeve 2 and the pipeline of the external water supply equipment, so as to continuously circulate and supply coolant to the interior of the main roller 1. Specifically, the coolant is input from the connecting sleeve 2 at one end of the main roller 1, and is discharged from the connecting sleeve 2 opened on the other end of the main roller 1 after passing through the internal space of the main roller 1, so as to continuously cool the main roller 1, and the pattern for processing the embossed glass is opened on the arc-shaped outer surface of the main roller 1, so as to perform the embossing operation when the main roller 1 rotates. At the same time, the inner diameter of the mixing chamber 8 is larger than the diameter of the internal cavity of the connecting sleeve 2, so that the coolant input through the internal cavity of the connecting sleeve 2 can all enter the interior of the sleeve 4 In the opened mixed flow chamber 8, in addition, the liquid inlet 5 is inclined, and the liquid inlet 5 is inclined toward the left side, so that the coolant input from the right end of the main roller 1 can flow into the heat exchange chamber 3 along the inner surface of the liquid inlet 5 under inertia, so as to exchange heat with the coolant with a higher temperature filled in the heat exchange chamber 3. Through the setting of the sleeve 4, the coolant filled in the heat exchange chamber 3 and the mixed flow chamber 8 have a certain temperature difference, and the temperature of the coolant in the heat exchange chamber 3 is higher, which is closer to the temperature of the glass raw material in the molten state, and the coolant is mixed and exchanged toward the heat exchange chamber 3 through the liquid inlet 5, so that the temperature in the heat exchange chamber 3 can be reduced more steadily without causing an excessively high temperature difference between the heat exchange chamber 3 and the inner wall of the main roller 1, which will cause the mechanical properties of the main roller 1 to change, resulting in a reduction in the service life of the main roller 1.

[0026] In addition, there are three groups of liquid inlets 5, and the three groups of liquid inlets 5 are evenly distributed in a circular array on the arc-shaped outer wall of the sleeve 4, thereby improving the exchange efficiency of the coolant between the mixed flow chamber 8 and the heat exchange chamber 3. At the same time, the barrier belt 6 exceeds the bottom surface of the liquid inlet 5 and extends into the mixed flow chamber 8, thereby further improving the efficiency of the coolant in the mixed flow chamber 8 entering the heat exchange chamber 3 along the barrier belt 6 and the liquid inlet 5.

[0027] In the embodiment of the utility model, two groups of spoiler chambers 9 are provided, and the two groups of spoiler chambers 9 are mirror-distributed on the inner walls of the upper and lower sides of the sleeve 4, and the length of the sliding groove 10 is less than the length of the spoiler chamber 9, so as to avoid the inner wall of the spoiler chamber 9 from interfering with the rotation of the spoiler blade 12. At the same time, the round rod 11 is adapted to the sliding groove 10, and the spoiler blade 12 moves in the mixing chamber 8 and the heat exchange chamber 3 at the same time when rotating, and then drives the spoiler blade 12 to rotate with the round rod 11 as the rotation axis when the coolant flows, further promoting the heat exchange chamber 3 and the mixing chamber 8. The exchange efficiency of the coolant is improved, thereby effectively ensuring the cooling effect of the main roller 1. At the same time, the spiral belt 13 is arranged in a spiral line on the arc-shaped inner surface of the heat exchange chamber 3, and the outer wall of the spiral belt 13 is arranged at an angle to promote the coolant flowing to one side of the inner surface of the heat exchange chamber 3 to flow toward the side of the sleeve 4, and the arc groove 7 is arranged between the liquid inlet 5 and the spoiler chamber 9, so that through the guidance of the arc-shaped inner surface of the arc groove 7, the coolant in the heat exchange chamber 3 can be better mixed and cooled when the coolant is input at the liquid inlet 5, thereby ensuring the continuous cooling effect of the main roller 1.

[0028] In the utility model, when in use, the connecting sleeves 2 provided at the left and right ends of the main roller 1 are respectively connected to the pipelines of the coolant circulation system, and the main roller 1 is installed through the bearings provided on the arc-shaped outer wall of the connecting sleeve 2. When the main roller 1 performs glass embossing processing, the external coolant circulation system is started, so that the coolant is input into the mixed flow chamber 8 through the inside of the connecting sleeve 2 at the right end of the main roller 1, and is connected with the turbulent flow chamber 9 through the liquid inlet 5, so that the coolant in the heat exchange chamber 3 and the mixed flow chamber 8 can be exchanged, so as to continuously cool down the inner surface of the main roller 1, avoid the main roller 1 from being overheated and coated with impurities on its surface, and affect the subsequent glass embossing processing. At the same time, By providing a cooling component, in cooperation with the multiple groups of liquid inlets 5 and the barrier belt 6 provided on the arc-shaped outer wall of the sleeve 4, the coolant in the mixed flow chamber 8 enters the heat exchange chamber 3 along the barrier belt 6 and the liquid inlet 5, and under the flow of the coolant, the spoiler blades 12 provided in the spoiler chamber 9 rotate with the round rod 11 as the rotation center, and slide in the sliding groove 10, so that the coolant in the mixed flow chamber 8 and the coolant with a higher temperature filled in the heat exchange chamber 3 are exchanged with each other, so that the temperature in the heat exchange chamber 3 can be reduced more stably without causing an excessively high temperature difference between the heat exchange chamber 3 and the inner wall of the main roller 1, which will cause the mechanical properties of the main roller 1 to change, resulting in a reduction in the service life of the main roller 1.

[0029] The above generally describes the present invention in detail, but it is obvious to a person skilled in the art that some modifications or improvements can be made to the present invention. Therefore, modifications or improvements that do not deviate from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A calendering roller with a protective function, comprising a main roller (1), the end of the main roller (1) being fixedly connected with a connecting sleeve (2), characterized in that: A cooling component is provided inside the main roller (1), and the cooling component comprises: A sleeve (4), the inner wall of the main roller (1) is fixedly mounted with the sleeve (4), and the cavity between the arc-shaped outer wall of the sleeve (4) and the inner wall of the main roller (1) forms a heat exchange cavity (3); A liquid inlet (5), the inner wall of the sleeve (4) is provided with a liquid inlet (5), a mixing chamber (8) is provided inside the sleeve (4), and a barrier strip (6) is fixedly installed on the outer wall of the liquid inlet (5) close to the mixing chamber (8); A spoiler cavity (9), wherein the inner wall of the sleeve (4) is provided with a spoiler cavity (9), the side wall of the spoiler cavity (9) is provided with a sliding groove (10), a round rod (11) is arranged inside the sliding groove (10), and a spoiler blade (12) is fixedly mounted on the arc-shaped outer wall of the round rod (11).

2. The calendering roller with protective function according to claim 1, characterized in that: An arc-shaped groove (7) is provided on the arc-shaped outer wall of the sleeve (4), and a spiral belt (13) is provided on the arc-shaped inner surface of the heat exchange cavity (3).

3. The calendering roller with protective function according to claim 1, characterized in that: The liquid inlet (5) is arranged in an inclined manner, and the liquid inlet (5) is inclined towards the left side.

4. The calendering roller with protective function according to claim 1, characterized in that: The number of the liquid inlets (5) is three groups, and the three groups of liquid inlets (5) are evenly distributed on the arc-shaped outer wall of the sleeve (4) in a circular array.

5. The calendering roller with protective function according to claim 1, characterized in that: The length of the sliding groove (10) is smaller than the length of the spoiler chamber (9), and the round rod (11) is adapted to the sliding groove (10).

6. The calendering roller with protective function according to claim 2, characterized in that: The spiral belt (13) is arranged in a spiral shape on the arc-shaped inner surface of the heat exchange cavity (3), and the outer wall of the spiral belt (13) is arranged in an inclined manner.

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