Embossing rollers for automotive dashboard embossing

Abstract

This application relates to an embossing roller for embossing automotive dashboard surfaces, belonging to the technical field of automotive dashboard surface processing. It includes a central shaft and a roller body. A sealed bearing is mounted on the central shaft, and the roller body is rotatably connected to the central shaft via the sealed bearing. A flow channel is arranged along the length direction inside the central shaft, and several heat-conducting fins are evenly arranged on the surface of the central shaft. Heat-conducting oil is disposed between the roller body and the central shaft. An oil injection nozzle and a waterproof vent valve are provided on the side of the roller body. This application uses flow channels and heat-conducting fins for heat transfer. The embossing roller does not have an internal heating structure, resulting in a longer overall service life and less susceptibility to damage. When heating is required, only a heat medium of the appropriate temperature needs to be introduced into the flow channel. The heat in the heat medium is transferred to the heat-conducting oil inside the roller body via the heat-conducting fins. The heat-conducting oil absorbs heat and then transfers it to the roller body, evenly distributing heat to the roller body, resulting in a relatively uniform surface temperature.

Description

Technical Field

[0001] This application relates to the technical field of automotive dashboard surface processing, and in particular to an embossing roller for embossing automotive dashboard surfaces. Background Technology

[0002] Embossing rollers are rollers with raised or recessed patterns engraved on their surface using CNC machining or other methods. They are typically installed on specialized printing machinery before use. In the manufacturing process of automotive dashboards, special patterns need to be created using embossing rollers.

[0003] In the pressing process, in order to improve the aesthetic effect, it is necessary to use a heated embossing roller. Existing heated embossing rollers generally have a heating structure installed inside the embossing roller. The heating structure is integrated inside the embossing roller. On the one hand, once damaged, it is difficult to repair, which seriously affects the production progress. On the other hand, the heating structure is prone to local overheating of the embossing roller when heating, resulting in uneven heat on the surface of the embossing roller.

[0004] Therefore, it is urgent to improve the existing embossing roller structure. Utility Model Content

[0005] The purpose of this application is to provide an embossing roller for embossing the surface of an automotive dashboard, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this application provides an embossing roller for embossing the surface of an automotive dashboard, employing the following technical solution: An embossing roller for embossing the surface of an automotive dashboard includes a central shaft and a roller body. A sealed bearing is mounted on the central shaft, and the roller body is rotatably connected to the central shaft via the sealed bearing. A flow channel is provided inside the central shaft along its length. A plurality of heat-conducting fins are uniformly arranged on the surface of the central shaft. Heat-conducting oil is provided between the roller body and the central shaft. An oil injection nozzle and a waterproof and breathable valve are provided on the side of the roller body.

[0007] Preferably, for ease of manufacturing, the central shaft located inside the roller body has a semi-circular groove, and a semi-circular block is fixedly fitted inside the semi-circular groove. Corresponding surfaces of the semi-circular groove and the semi-circular block have through grooves, and the through grooves on both sides form a channel, which is connected to the flow channel.

[0008] Preferably, the channel is wavy.

[0009] By adopting the above technical solution, the wavy channel can increase the contact area and contact time between the heating medium and the central shaft, thereby improving the heat exchange efficiency.

[0010] The heat-conducting fins are arc-shaped and arranged radially along the central axis. Heat-conducting fins are also fixed on the surface of the semi-circular strip block.

[0011] Preferably, in order to improve the heat transfer effect, a number of heat transfer fins are also uniformly welded along the radial direction on the inner wall of the roller.

[0012] Preferably, in order to facilitate driving the embossing roller, extension ring blocks are respectively provided on both sides of the roller body, and an external toothed ring is fixed on the surface of the extension ring block.

[0013] In summary, this application includes at least one of the following beneficial technical effects: the embossing roller for automotive dashboard surface embossing uses flow channels and heat-conducting fins for heat transfer. The embossing roller does not have a heating structure inside, resulting in a longer overall service life and less susceptibility to damage. When heating is required, it is only necessary to introduce a heat medium of the corresponding temperature into the flow channel. The heat in the heat medium is transferred to the heat-conducting oil inside the roller body through the heat-conducting fins. After absorbing heat, the heat-conducting oil transfers the heat to the roller body. The heat-conducting oil evenly transfers the heat to the roller body, resulting in a relatively uniform surface temperature of the roller body. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application.

[0015] Figure 2 This is an exploded structural diagram used to illustrate the central axis in the embodiments of this application.

[0016] Figure 3 This is a structural schematic diagram illustrating the roller body in the embodiments of this application.

[0017] Explanation of reference numerals in the attached drawings: 1. Central shaft; 11. Flow channel; 12. Semi-circular strip groove; 121. Through groove; 13. Semi-circular strip block; 2. Roller body; 21. Extension ring block; 3. Sealed bearing; 4. External gear ring; 5. Heat-conducting fins; 6. Heat transfer fins. Detailed Implementation

[0018] The following is in conjunction with the appendix Figure 1-3 This application will be described in further detail.

[0019] This application discloses an embossing roller for embossing the surface of an automotive dashboard, referring to... Figure 1-3 The roller body 2 includes a central shaft 1 and a roller body 2. The surface of the roller body 2 is engraved with embossed patterns (not shown in the figure). A sealed bearing 3 is installed on the central shaft 1. The roller body 2 is rotatably connected to the central shaft 1 through the sealed bearing 3. Extension ring blocks 21 are respectively provided on both sides of the roller body 2. An external toothed ring 4 is fixed on the surface of the extension ring block 21. A flow channel 11 is provided inside the central shaft 1 along the length direction. Several heat-conducting fins 5 are evenly provided on the surface of the central shaft 1. Heat-conducting oil is provided between the roller body 2 and the central shaft 1. An oil injection nozzle and a waterproof and breathable valve are provided on the side of the roller body 2. The central shaft 1 is located inside the roller body 2 and has a semi-circular strip groove 12. A semi-circular strip block 13 is fixedly matched inside the semi-circular strip groove 12. Corresponding surfaces of the semi-circular strip groove 12 and the semi-circular strip block 13 are provided with through grooves 121. The through grooves 121 on both sides form a channel, which is connected to the flow channel 11. The channel is wavy. The wavy channel can increase the contact area and contact time between the heating medium and the central shaft 1, thereby improving the heat exchange efficiency.

[0020] By setting a semi-circular strip block 13, and opening through grooves 121 on the corresponding surfaces of the semi-circular strip groove 12 and the semi-circular strip block 13, this method greatly reduces the production cost of opening holes and is easy to manufacture. The semi-circular strip block 13 is fixed in the semi-circular strip groove 12. After installing a sealing gasket between the semi-circular strip block 13 and the semi-circular strip groove 12, a complete seal can be achieved, which is convenient for manufacturing and can adapt to mass production.

[0021] Reference Figure 2 The heat-conducting fins 5 are arc-shaped and arranged radially along the central axis 1. Heat-conducting fins 5 are also fixed on the surface of the semi-circular strip block 13.

[0022] Reference Figure 3 In order to improve the heat transfer effect, several heat transfer fins 6 are also uniformly welded along the radial direction on the inner wall of the roller body 2.

[0023] The implementation principle of an embossing roller for embossing the surface of an automotive dashboard according to an embodiment of this application is as follows: By setting a flow channel 11 inside the central shaft 1 and setting heat-conducting fins 5 on the surface of the central shaft 1, when heating is required, it is only necessary to pass a heat medium of the corresponding temperature into the flow channel 11. The heat in the heat medium is transferred to the heat-conducting oil in the roller body 2 through the heat-conducting fins 5. After absorbing heat, the heat-conducting oil transfers the heat to the roller body 2. The heat-conducting oil evenly transfers the heat to the roller body 2, and the surface temperature of the roller body 2 is relatively uniform. The embossing roller uses flow channel 11 and heat-conducting fins 5 for heat transfer. There is no heating structure inside the embossing roller, resulting in a long service life and less susceptibility to damage.

[0024] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. An embossing roller for embossing the surface of an automotive dashboard, characterized in that: It includes a central shaft (1) and a roller body (2). A sealed bearing (3) is installed on the central shaft (1). The roller body (2) is rotatably connected to the central shaft (1) through the sealed bearing (3). A flow channel (11) is provided inside the central shaft (1) along the length direction. A number of heat-conducting fins (5) are uniformly provided on the surface of the central shaft (1). Heat-conducting oil is provided between the roller body (2) and the central shaft (1). An oil injection nozzle and a waterproof and breathable valve are provided on the side of the roller body (2).

2. The embossing roller for embossing the surface of an automotive dashboard according to claim 1, characterized in that: The central shaft (1) is located inside the roller body (2) and has a semi-circular strip groove (12). A semi-circular strip block (13) is fixed in the semi-circular strip groove (12). The corresponding surfaces of the semi-circular strip groove (12) and the semi-circular strip block (13) are provided with through grooves (121). The through grooves (121) on both sides form a channel, which is connected to the flow channel (11).

3. The embossing roller for embossing the surface of an automotive dashboard according to claim 2, characterized in that: The channel is wavy.

4. The embossing roller for embossing the surface of an automotive dashboard according to claim 2, characterized in that: The heat-conducting fins (5) are arc-shaped and arranged radially along the central axis (1). The surface of the semi-circular strip block (13) is also fixed with heat-conducting fins (5).

5. The embossing roller for embossing the surface of an automotive dashboard according to claim 1, characterized in that: The inner wall of the roller (2) is also uniformly welded with several heat transfer fins (6) along the radial direction.

6. The embossing roller for embossing the surface of an automotive dashboard according to claim 1, characterized in that: The roller body (2) is provided with extension ring blocks (21) on both sides, and an external toothed ring (4) is fixed on the surface of the extension ring blocks (21).

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