A vacuum coating water-cooled roller

Abstract

This utility model provides a vacuum coating water-cooled roller, including a roller body, a roller sleeve, and a spiral cooling water channel. The spiral cooling water channel is arranged along the axial direction of the roller body on the outer surface of the roller body, and the roller sleeve is arranged on the outer circumferential surface of the roller body. A cooling water inlet is provided at the end of the roller body, which is connected to the spiral cooling water channel. A circular closed cooling water recovery channel is provided inside the roller body. External cooling water enters the spiral cooling water channel through the cooling water inlet and flows along the spiral cooling water channel. After heat exchange, the cooling water enters the cooling water recovery channel through the cooling water recovery inlet. Since the cooled water does not flow out to the outside through the cooling water recovery channel inside the roller body, it is used to absorb heat from the roller body again, thus reusing the cooling water, improving its heat exchange efficiency, and avoiding waste of cooling water resources.

Description

Technical Field

[0001] This utility model relates to the field of roller technology, specifically to a vacuum coating water-cooled roller. Background Technology

[0002] Vacuum water-cooled rollers are roller devices that operate in a vacuum environment. They integrate a water cooling system and their core function is to cool or maintain a specific temperature of the substrate (such as film, metal foil, glass, etc.) by precisely controlling the temperature of the roller surface in a vacuum environment.

[0003] In existing technologies, vacuum water-cooled rollers have a spiral cooling channel inside. External cooling water is connected to one end of the spiral cooling channel through a rotary joint. The external cooling water flows along one end of the spiral cooling channel to the other end of the vacuum water-cooled roller and finally flows out at the other end. This cooling method has the problem of resource waste because the external cooling water only flows in from one end and flows out directly from the other end. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a vacuum coating water-cooled roller to solve the problem of resource waste caused by the direct discharge of cooling water used for cooling on the existing vacuum water-cooled roller.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] This application provides a vacuum coating water-cooled roller, including a roller body, a roller sleeve, and a spiral cooling water channel. The spiral cooling water channel is arranged along the axial direction of the roller body on the outer surface of the roller body. The roller sleeve is arranged on the outer circumferential surface of the roller body and fits against the outer wall of the spiral cooling water channel. A cooling water inlet is provided at the end of the roller body, and the cooling water inlet is connected to the spiral cooling water channel. A circular closed cooling water recovery channel is provided inside the roller body, and the cooling water recovery channel is arranged along the axial direction of the roller body. The cooling water outlet of the spiral cooling water channel is connected to the cooling water recovery channel. A cooling water recovery port is provided on the roller body, and the cooling water recovery port is connected to the cooling water recovery channel.

[0007] Furthermore, the spiral cooling water channel includes a first spiral cooling water channel and a second spiral cooling water channel, the threads of the first spiral cooling water channel and the second spiral cooling water channel have opposite directions, the first spiral cooling water channel extends from one end of the roller body to the middle part of the roller body, the second spiral cooling water channel extends from the other end of the roller body to the middle part of the roller body, the first spiral cooling water channel and the second spiral cooling water channel are connected at the middle part of the roller body, the cooling water recovery port is provided at the connection part of the first spiral cooling water channel and the second spiral cooling water channel, and the cooling water inlet is provided at opposite ends of the roller body, and a pair of cooling water inlets are respectively connected to the first spiral cooling water channel and the second spiral cooling water channel.

[0008] Furthermore, the outer surface of the roller sleeve is also provided with a heat radiation coating.

[0009] Furthermore, the roller sleeve includes an aluminum thermally conductive layer and a stainless steel surface layer arranged sequentially from the inside to the outside, with the aluminum thermally conductive layer attached to the outer surface of the roller body.

[0010] The beneficial effects of this utility model are as follows:

[0011] By employing the aforementioned vacuum-coated water-cooled roller, a spiral cooling water channel is provided on the outer surface of the roller body, while a closed cooling water recovery channel is provided inside the roller body. External cooling water enters the spiral cooling water channel through the cooling water inlet and flows along the spiral cooling water channel to cool the outer surface of the roller body. The cooled water after heat exchange enters the cooling water recovery channel through the cooling water recovery inlet. Since the cooled water after heat exchange does not flow outward through the cooling water recovery channel inside the roller body, it does not flow outward directly but flows inside the roller body for a period of time before being discharged. The cooled water after heat exchange absorbs heat from the roller body again, thus reusing the cooling water, improving its heat exchange efficiency, and avoiding waste of cooling water resources. Attached Figure Description

[0012] Figure 1 This is a three-dimensional structural diagram of the vacuum coating water-cooled roller in the embodiments of this application.

[0013] Figure 2 This is a three-dimensional structural diagram of the roller body in the embodiments of this application.

[0014] Figure 3 This is a side view of the structure of the vacuum coating water-cooled roller in the embodiments of this application.

[0015] Figure 4 for Figure 3 A schematic diagram of the AA-direction cross-section structure.

[0016] Figure 5 for Figure 4 A magnified schematic diagram of the structure at point B in the diagram.

[0017] Figure 6 for Figure 2 A magnified schematic diagram of the structure at point C.

[0018] Figure 7 for Figure 2 A magnified schematic diagram of the structure at point D in the diagram.

[0019] In the picture:

[0020] 100-Vacuum coating water-cooled roller;

[0021] 10-Roller body;

[0022] 20-Roller sleeve;

[0023] 30 - Thermal radiation coating;

[0024] 40 - Cooling water inlet;

[0025] 50 - Cooling water outlet;

[0026] 60 - Spiral cooling water channel; 61 - First spiral cooling water channel; 62 - Second spiral cooling water channel;

[0027] 70 - Cooling water recovery port;

[0028] 80 - Cooling water recovery channel. Detailed Implementation

[0029] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0030] See Figures 1 to 2 As shown, this embodiment provides a vacuum coating water-cooled roller 100, including a roller body 10, a roller sleeve 20, and a spiral cooling water channel 60. The spiral cooling water channel 60 is formed on the outer surface of the roller body 10, and extends from one end of the roller body 10 to the other end in a spiral manner. The spiral cooling water channel 60 is used for cooling water to move spirally along the outer surface of the roller body 10. The roller sleeve 20 is disposed on the outer circumferential surface of the roller body 10, and the inner wall of the roller sleeve 20 is in contact with the outer surface of the spiral cooling water channel 60. In this way, as the cooling water flows along the spiral cooling water channel 60, the cooling water cools the outer surface of the roller sleeve 20.

[0031] Reference Figures 1 to 6As shown, in this embodiment, a cooling water inlet 40 is provided at the end of the roller body 10, and the cooling water inlet 40 is connected to the spiral cooling water channel 60. A circular closed cooling water recovery channel 80 is provided inside the roller body 10, that is, the two ends of the cooling water recovery channel 80 are closed. The cooling water recovery channel 80 is arranged along the axial direction of the roller body 10. The cooling water outlet of the spiral cooling water channel 60 is connected to the cooling water recovery channel 80. A cooling water recovery port 70 is provided on the roller body 10, and the cooling water recovery port 70 is connected to the cooling water recovery channel 80.

[0032] External cooling water flows into the spiral cooling water channel 60 through the cooling water inlet 40. As the cooling water flows along the spiral cooling water channel 60, it cools the outer surface of the roller sleeve 20. After flowing for a period of time, the cooled water, after heat exchange, flows into the cooling water recovery channel 80 through the cooling water recovery inlet 70 and moves along the internal axial direction of the roller body 10. As the cooled water flows along the cooling water recovery channel 80, it absorbs heat from the roller body 10 again, cooling the roller body 10. The cooled water, after heat exchange again, flows out from the cooling water outlet 50. The cooling water outlet 50 is located at one end of the roller body 10 and is connected to one end of the cooling water recovery channel 80. The cooling water after the initial heat exchange is reused, which improves the heat exchange efficiency of the cooling water and avoids the waste of cooling water resources.

[0033] Reference Figure 2 and Figure 7 As shown, in this embodiment, the spiral cooling water channel 60 includes a first spiral cooling water channel 61 and a second spiral cooling water channel 62. The threads of the first spiral cooling water channel 61 and the second spiral cooling water channel 62 have opposite directions. The first spiral cooling water channel 61 extends from the left end of the roller body 10 to the middle part of the roller body 10, and the second spiral cooling water channel 62 extends from the right end of the roller body 10 to the middle part of the roller body 10. The first spiral cooling water channel 61 and the second spiral cooling water channel 62 are connected at the middle part of the roller body 10. The cooling water recovery port 70 is provided at the connection point between the first spiral cooling water channel 61 and the second spiral cooling water channel 62, so that the cooling water in the first spiral cooling water channel 61 and the second spiral cooling water channel 62 will flow into the cooling water recovery channel 80 from the cooling water recovery port 70. Cooling water inlets 40 are respectively provided at opposite ends of the roller body 10, and a pair of cooling water inlets 40 are respectively connected to the first spiral cooling water channel 61 and the second spiral cooling water channel 62.

[0034] In this embodiment, the spiral cooling water channel adopts a double spiral channel structure with opposite spiral directions, so that the cooling water enters from the left and right ends of the roller body 10 at the same time, which greatly reduces the temperature difference between the two ends of the roller body 10, improves the temperature uniformity of the entire roller surface, and avoids the problem of large inlet and outlet temperature difference that exists in single spiral channel lock.

[0035] In use, external cooling water flows into the first spiral cooling water channel 61 and the second spiral cooling water channel 62 from the cooling water inlet 40 at the left and right ends of the roller body 10, respectively. The injected cooling water flows along the first spiral cooling water channel 61 and the second spiral cooling water channel 62, respectively, and flows into the cooling water recovery channel 80 in the inner cavity of the roller body 10 from the cooling water recovery inlet 70 (see reference). Figure 2 and Figure 7 (As shown).

[0036] Reference Figure 1 As shown, in this embodiment, the outer surface of the roller sleeve 20 is also provided with a thermal radiation coating 30. The thermal radiation coating 30 can be used to enhance the thermal radiation efficiency of the roller towards the material being cooled and improve the heat exchange effect.

[0037] Continue to refer to the appendix Figure 1 As shown, in this embodiment, the roller sleeve 20 includes an aluminum heat-conducting layer and a stainless steel surface layer arranged sequentially from the inside to the outside, with the aluminum heat-conducting layer attached to the outer surface of the roller body 10. That is, by using an aluminum heat-conducting layer made of aluminum material with a higher thermal conductivity in the inner layer, and a stainless steel surface layer made of stainless steel material with higher wear resistance and corrosion resistance in the outer layer, the requirements of high thermal conductivity and high surface strength are taken into account.

[0038] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A vacuum-coated water-cooled roll, characterized by The device includes a roller body, a roller sleeve, and a spiral cooling water channel. The spiral cooling water channel is arranged along the axial direction of the roller body on its outer surface. The roller sleeve is arranged on the outer circumferential surface of the roller body and fits against the outer wall of the spiral cooling water channel. A cooling water inlet is provided at the end of the roller body, which is connected to the spiral cooling water channel. A circular, closed cooling water recovery channel is provided inside the roller body, which is arranged along the axial direction of the roller body. The cooling water outlet of the spiral cooling water channel is connected to the cooling water recovery channel. A cooling water recovery port is provided on the roller body, which is connected to the cooling water recovery channel.

2. The vacuum-coated water-cooled roll according to claim 1, wherein The spiral cooling water channel includes a first spiral cooling water channel and a second spiral cooling water channel. The threads of the first spiral cooling water channel and the second spiral cooling water channel have opposite directions. The first spiral cooling water channel extends from one end of the roller body to the middle part of the roller body, and the second spiral cooling water channel extends from the other end of the roller body to the middle part of the roller body. The first spiral cooling water channel and the second spiral cooling water channel are connected at the middle part of the roller body. The cooling water recovery port is located at the connection point of the first spiral cooling water channel and the second spiral cooling water channel. Cooling water inlets are respectively provided at opposite ends of the roller body, and a pair of cooling water inlets are respectively connected to the first spiral cooling water channel and the second spiral cooling water channel.

3. The vacuum-coated water-cooled roll according to claim 1 or 2, characterized in that The outer surface of the roller sleeve is also provided with a heat radiation coating.

4. The vacuum-coated water-cooled roll according to claim 1, wherein The roller sleeve includes an aluminum thermally conductive layer and a stainless steel surface layer arranged sequentially from the inside to the outside, with the aluminum thermally conductive layer attached to the outer surface of the roller body.

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