Multi-layer composite pressure roller structure

Abstract

This utility model discloses a multi-layer composite pressure roller structure, including a roller body and two sealing shafts. The roller body contains a core roller, and the outer side of the core roller is sequentially provided with a high-strength alloy steel layer and a carbon fiber braided layer. The two sealing shafts are rotatably connected to the two ends of the core roller. A ring-shaped fixing block is fixedly connected to the outer side of each sealing shaft, and ball bearings are rotatably connected to the fixing block. The outer side of the ball bearings makes rolling contact with the inner side of the high-strength alloy steel layer. This utility model, by combining the core roller with the high-strength alloy steel layer and the carbon fiber braided layer to form the roller body, and cooperating with the ring-shaped fixing block and ball bearing structure on the outer side of the sealing shaft, effectively disperses the pressure load at the connecting shaft, reduces internal wear, and utilizes a spiral structure to expand the heat exchange area. Therefore, the device achieves the advantages of reducing the pressure at the connecting shaft, improving connection stability and service life, and enhancing overall heat dissipation and thermal conductivity efficiency.

Description

Technical Field

[0001] This utility model relates to the field of composite pressure roller technology, and more specifically, to a multi-layer composite pressure roller structure. Background Technology

[0002] Multi-layer composite material press rollers are key equipment used to bond different substrates into composite films through heating and pressure. Their core structure includes a supporting substrate (typically made of 45# steel or alloy steel), a composite roller (steel roller body with hard chrome plating), and a pressure roller (made of rubber). By precisely controlling temperature (e.g., electromagnetic heating with a temperature difference of ±1℃) and pressure (80-400MPa), efficient and uniform material bonding is achieved.

[0003] However, current composite pressure rollers require applying high pressure to the processed material for extended periods during operation. This results in significant pressure at the connecting shaft, which can easily cause internal bearing wear, reducing the overall lifespan. Furthermore, due to the differences in thermal conductivity between the composite materials, the overall heat dissipation and heat conduction capabilities of the roller are poor, making it difficult to meet the needs of various scenarios. Utility Model Content

[0004] In view of the problems existing in the prior art, the purpose of this utility model is to provide a multi-layer material composite pressure roller structure to solve the problems in the background art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution;

[0006] A multi-layer composite pressure roller structure includes a roller body and two sealing shafts. The roller body has a core roller inside, and the outer side of the core roller is provided with a high-strength alloy steel layer and a carbon fiber braided layer in sequence. The two sealing shafts are respectively rotatably connected to the two ends of the core roller.

[0007] The outer side of the sealing shaft is fixedly connected to a ring of fixed blocks, and ball bearings are rotatably connected to the fixed blocks. The outer side of the ball bearings makes rolling contact with the inner side of the high-strength alloy steel layer.

[0008] As a further description of the above technical solution: both ends of the high-strength alloy steel layer extend to the outer sides of both ends of the core roller and cover the outer side of the balls.

[0009] As a further description of the above technical solution: the end of the sealing shaft away from the core roller is provided with a connecting keyway, and the inner side of the connecting keyway is provided with a mating groove.

[0010] As a further description of the above technical solution: the outer side of the core roller is provided with a spiral cooling water channel, and both ends of the high-strength alloy steel layer are rotatably connected with a rotating ring pipe. The outer side of the rotating ring pipe is provided with a water pipe connector, and the inner side of the rotating ring pipe is connected to the spiral cooling water channel.

[0011] As a further description of the above technical solution: the core roller is a carbon fiber reinforced aluminum-based roller.

[0012] As a further description of the above technical solution: the thickness of the carbon fiber braided layer is 0.5-2mm, and the surface of the carbon fiber braided layer is carbonized to form a smooth and wear-resistant layer, which is then hot-pressed onto the surface of the high-strength alloy steel layer.

[0013] Compared with existing technologies, the advantages of this utility model are:

[0014] (1) This solution uses a core roller combined with a high-strength alloy steel layer and a carbon fiber braided layer to form a roller body. Combined with the fixed blocks and ball structure distributed in a ring on the outside of the sealing shaft, it effectively disperses the pressure load at the connecting shaft and reduces internal wear. Thus, the device has the advantages of reducing the pressure at the connecting shaft, improving connection stability and service life.

[0015] (2) This solution uses a spiral cooling water channel on the outside of the core roller to expand the heat exchange area by using the spiral structure. When the roller generates heat during operation, the coolant can quickly carry away the heat through the water channel, thus realizing the advantages of the device in improving the overall heat dissipation and heat conduction efficiency and meeting the temperature control requirements in multiple scenarios. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0017] Figure 2 This is a side view of the structure of this utility model;

[0018] Figure 3 for Figure 2 Enlarged schematic diagram of the structure of section A in the middle;

[0019] Figure 4 This is a partial three-dimensional structural diagram of the present invention.

[0020] Explanation of the labels in the diagram:

[0021] 1. Roller body; 2. Sealing shaft; 21. Fixing block; 22. Ball bearings; 3. Core roller; 31. Spiral cooling water channel; 4. High-strength alloy steel layer; 5. Carbon fiber braided layer; 6. Connecting keyway; 7. Fitting groove; 8. Rotating ring tube; 9. Water pipe connector. Detailed Implementation

[0022] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0023] The current composite pressure rollers require prolonged application of high pressure to the processed material during operation, which leads to significant pressure at the connecting shaft, causing internal bearing wear and reducing overall lifespan. Example 1 is proposed as follows:

[0024] Please see Figure 1-4 In this embodiment, the multi-layer composite pressure roller structure includes a roller body 1 and two sealing shafts 2. The roller body 1 has a core roller 3 inside. The outer side of the core roller 3 is provided with a high-strength alloy steel layer 4 and a carbon fiber braided layer 5 in sequence. The thickness of the carbon fiber braided layer 5 is 0.5-2mm. The surface of the carbon fiber braided layer 5 is carbonized to form a smooth and wear-resistant layer and is hot-pressed to the surface of the high-strength alloy steel layer 4. Both ends of the high-strength alloy steel layer 4 extend to the outer sides of both ends of the core roller 3 and cover the outer side of the ball bearings 22.

[0025] Two sealing shafts 2 are rotatably connected to the two ends of the core roller 3 respectively; the core roller 3 is a carbon fiber reinforced aluminum-based roller; a ring-shaped fixed block 21 is fixedly connected to the outer side of the sealing shaft 2, and a ball bearing 22 is rotatably connected to the fixed block 21. The outer side of the ball bearing 22 rolls in contact with the inner side of the high-strength alloy steel layer 4; a connecting keyway 6 is provided at the end of the sealing shaft 2 away from the core roller 3, and a mating groove 7 is provided on the inner side of the connecting keyway 6.

[0026] In this embodiment, the roller body 1 is composed of a core roller 3 combined with a high-strength alloy steel layer 4 and a carbon fiber braided layer 5. The lightweight characteristics of the carbon fiber reinforced aluminum base roller and the rigid support of the high-strength alloy steel layer 4 are utilized, and the carbonized carbon fiber braided layer 5 is used to improve wear resistance. At the same time, the structure of the fixed blocks 21 and the balls 22 distributed in a ring on the outside of the sealing shaft 2 transforms the sliding friction of the traditional bearing into rolling contact, effectively dispersing the pressure load at the connecting shaft and reducing internal wear. The design of the high-strength alloy steel layer 4 extending at both ends to cover the balls 22 not only protects the rotating parts but also ensures the coaxiality of the roller body 1 when it rotates. The mating groove 7 on the inner side of the connecting keyway 6 enhances the connection stability with the drive mechanism and avoids stress concentration during transmission. Thus, the device has the advantages of reducing the pressure at the connecting shaft, improving connection stability and service life.

[0027] To address the issue that composite rollers suffer from poor overall heat dissipation and heat conduction capabilities due to differences in thermal conductivity between the composite materials, making it difficult to meet the needs of various scenarios, Example 2 is proposed:

[0028] Please see Figure 3 and Figure 4 The core roller 3 has a spiral cooling water channel 31 on its outer side, and both ends of the high-strength alloy steel layer 4 are rotatably connected to a rotating ring pipe 8. The outer side of the rotating ring pipe 8 is provided with a water pipe connector 9, and the inner side of the rotating ring pipe 8 is connected to the spiral cooling water channel 31.

[0029] In this embodiment, a spiral cooling water channel 31 is set on the outside of the core roller 3, and a flow path is formed by connecting the rotating ring pipe 8 and the water pipe connector 9 to the external water channel. The spiral structure expands the heat exchange area. When the roller 1 generates heat during operation, the coolant can quickly remove the heat through the water channel. At the same time, the design of the rotating ring pipe 8 ensures that the pipe connection is not affected during the rotation of the roller 1. This effectively solves the problem of thermal conductivity differences caused by different material combinations. Thus, the device has the advantages of improving the overall heat dissipation and thermal conductivity efficiency and meeting the temperature control requirements in multiple scenarios.

[0030] The above description is merely a preferred embodiment of this utility model; however, the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and its improved concept, should be included within the protection scope of this utility model.

Claims

1. A multi-layer composite pressure roller structure, comprising a roller body (1) and two sealing shafts (2), characterized in that: The roller body (1) is provided with a core roller (3) inside. The outer side of the core roller (3) is provided with a high-strength alloy steel layer (4) and a carbon fiber braided layer (5) in sequence. The two sealing shafts (2) are respectively rotatably connected to the two ends of the core roller (3). The sealing shaft (2) is fixedly connected to a ring-shaped fixed block (21) on the outside. A ball bearing (22) is rotatably connected to the fixed block (21). The outer side of the ball bearing (22) is in rolling contact with the inner side of the high-strength alloy steel layer (4).

2. The multi-layer composite pressure roller structure according to claim 1, characterized in that: Both ends of the high-strength alloy steel layer (4) extend to the outer sides of both ends of the core roller (3) and cover the outer side of the ball (22).

3. The multi-layer composite pressure roller structure according to claim 1, characterized in that: The sealing shaft (2) is provided with a connecting keyway (6) at one end away from the core roller (3), and a fitting groove (7) is provided on the inner side of the connecting keyway (6).

4. The multi-layer composite pressure roller structure according to claim 1, characterized in that: The outer side of the core roller (3) is provided with a spiral cooling water channel (31), and both ends of the high-strength alloy steel layer (4) are rotatably connected with a rotating ring pipe (8). The outer side of the rotating ring pipe (8) is provided with a water pipe connector (9), and the inner side of the rotating ring pipe (8) is connected to the spiral cooling water channel (31).

5. The multi-layer composite pressure roller structure according to claim 1, characterized in that: The core roller (3) is a carbon fiber reinforced aluminum-based roller.

6. The multi-layer composite pressure roller structure according to claim 1, characterized in that: The thickness of the carbon fiber braided layer (5) is 0.5-2mm. The surface of the carbon fiber braided layer (5) is carbonized to form a smooth and wear-resistant layer and is hot-pressed onto the surface of the high-strength alloy steel layer (4).

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