A heat transfer oil internal circulation heating roller

Abstract

This utility model discloses a heat transfer oil internal circulation heating roller, including a heating roller; the heating roller consists of a roller and a mounting frame, with shafts installed at both ends of the roller, the shafts being rotatably mounted on the upper side of the mounting frame, and an adjustment mechanism installed at the bottom of the mounting frame. An inner cylinder is installed inside the roller, and a support plate is welded between the inner cylinder and the roller, forming an oil cavity between the roller and the inner cylinder. A heating rod is installed inside the oil cavity, with one end of the heating rod installed at one end of the roller and a wire attached to that end. The other end of the wire is connected to a conductive slip ring, which is mounted on the outside of the shaft and fixedly mounted on the upper side of the mounting frame. The operator first rotates the bidirectional threaded cylinder to adjust the extension and retraction of the threaded rod, raising and lowering the mounting frame and roller to the optimal height on the production line, and then tightens the fixing bolts to lock the position.

Description

Technical Field

[0001] This utility model relates to the field of heating roller technology, specifically a heat transfer oil internal circulation heating roller. Background Technology

[0002] Heated rollers are a key piece of industrial equipment, mainly used in the heating, drying, calendering, and shaping processes of various materials. They have wide applications in thermoplastic sheet rolling mills, textile processing, foam calendering, and film hot pressing lamination.

[0003] Chinese Patent No. 201320114388.9 discloses a heating roller. To overcome the technical problems of high energy consumption and poor heating effect of current heating rollers, this utility model provides a heat-conducting oil internal circulation heating roller, comprising an outer cylinder, end plates welded and sealed at both ends of the outer cylinder, and left and right support shafts located at both ends of the outer cylinder. The outer cylinder contains an inner cylinder coaxial with it, with both ends of the inner cylinder welded to the end plates, forming a heat-conducting oil cavity between the outer and inner cylinders, filled with heat-conducting oil. A heat-conducting oil injection hole is provided on one of the end plates at both ends of the cylinder. A heating device is provided within the heat-conducting oil cavity, and the heating device is connected to a conductive slip ring on the support shaft via a wire.

[0004] This invention has a limited adjustable range, and the height of the heating roller cannot be adjusted during use. Utility Model Content

[0005] The purpose of this invention is to provide a heat transfer oil internal circulation heating roller to solve the problems mentioned in the prior art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a heat transfer oil internal circulation heating roller, comprising a heating roller; the heating roller is composed of a roller and a mounting frame, with shafts installed at both ends of the roller, the shafts being rotatably mounted on the upper side of the mounting frame, an adjustment mechanism installed at the bottom end of the mounting frame, an inner cylinder installed inside the roller, a support plate welded between the inner cylinder and the roller, an oil cavity formed between the roller and the inner cylinder, a heating rod installed inside the oil cavity, one end of the heating rod being installed at one end of the roller, a wire being installed at one end of the heating rod, the other end of the wire being connected to a conductive slip ring, the conductive slip ring being installed on the outside of the shaft, and the outside of the conductive slip ring being fixedly mounted on the upper side of the mounting frame.

[0007] Preferably, a heat insulation board is provided inside the inner cylinder, and the heat insulation board is attached to the inside of the inner cylinder with adhesive.

[0008] Preferably, the adjusting mechanism consists of a bidirectional threaded cylinder and a threaded rod, with the threaded rod rotatably mounted at both ends of the threaded cylinder, and the threaded rods at both ends of the bidirectional threaded cylinder mounted in the middle of the mounting frame.

[0009] Preferably, a limiting plate is provided in the section of the threaded rod located inside the bidirectional threaded cylinder. The limiting plate is welded to one end of the threaded rod. Fixing bolts are provided at both the upper and lower ends of the bidirectional threaded cylinder. The fixing bolts are rotatably installed at both ends of the bidirectional threaded cylinder.

[0010] Preferably, a wire mesh is installed on the outside of the conductor, the wire mesh is wrapped around the outside of the conductor, and a rubber sleeve is slidably installed on the outside of the conductor, the rubber sleeve being embedded inside one side of the roller.

[0011] Preferably, a heat-conducting plate is provided on the outer side of the heating rod, and the heat-conducting plate is welded to the outer side of the heating rod.

[0012] Preferably, a chromium plating layer is provided on the outer side of the roller, and the chromium plating layer is attached to the outer side of the roller.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. The operator first rotates the bidirectional threaded cylinder to adjust the extension and retraction of the threaded rod, and then raises and lowers the mounting frame and roller to the optimal height of the production line before tightening the fixing bolt to lock the position.

[0015] 2. The function of the limiting plate is to prevent the threaded rod from disengaging from the bidirectional threaded cylinder during movement. Fixing bolts are also installed at both the upper and lower ends of the bidirectional threaded cylinder. After adjustment to the appropriate position, the fixing bolts are rotated to make them tightly contact the threaded rod, thereby fixing the threaded rod in place, ensuring the stability of the adjustment mechanism, and preventing positional changes during operation.

[0016] 3. The wire mesh enhances the strength of the conductor, preventing damage caused by pulling, squeezing, or other external forces during roller rotation. Additionally, a rubber sleeve is slidably installed on the outside of the conductor, embedded inside one side of the roller. This sleeve not only further protects the conductor but also acts as a seal, preventing leakage of heat-conducting oil from the oil chamber and reducing friction between the conductor and the roller.

[0017] 4. The heat-conducting plate can increase the contact area between the heating rod and the heat-conducting oil, so that the heat generated by the heating rod can be transferred to the heat-conducting oil more quickly and evenly, improving the heat transfer efficiency, thereby making the temperature distribution on the roller surface more uniform and ensuring the stability of the heating effect. Attached Figure Description

[0018] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the adjustment mechanism of this utility model;

[0021] Figure 3 This is a schematic diagram of the internal structure of the roller of this utility model;

[0022] Figure 4 This is a schematic diagram of the structure of the heating rod of this utility model.

[0023] In the diagram: 1. Heating roller; 2. Roller; 3. Shaft; 4. Mounting bracket; 5. Adjustment mechanism; 6. Rubber sleeve; 7. Limiting plate; 8. Threaded rod; 9. Bidirectional threaded cylinder; 10. Fixing bolt; 11. Chrome plating layer; 12. Heat insulation plate; 13. Heating rod; 14. Support plate; 15. Oil cavity; 16. Heat conducting plate; 17. Inner cylinder; 18. Wire mesh; 19. Rubber pad; 20. Wire; 21. Conductive slip ring. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 In this embodiment of the utility model, a heat transfer oil internal circulation heating roller includes a heating roller 1; the heating roller 1 is composed of a roller 2 and a mounting frame 4. Shafts 3 are installed at both ends of the roller 2, and the shafts 3 are rotatably mounted on the upper side of the mounting frame 4. An adjustment mechanism 5 is installed at the bottom end of the mounting frame 4. An inner cylinder 17 is installed inside the roller 2. A support plate 14 is welded between the inner cylinder 17 and the roller 2. An oil cavity 15 is formed between the roller 2 and the inner cylinder 17. A heating rod 13 is installed inside the oil cavity 15. One end of the heating rod 13 is installed at one end of the roller 2, and a wire 20 is installed at one end of the heating rod 13. The other end of the wire 20 is connected to a conductive slip ring 21. The conductive slip ring 21 is installed on the outside of the shaft 3, and the outside of the conductive slip ring 21 is fixedly mounted on the upper side of the mounting frame 4.

[0026] A heat insulation plate 12 is installed inside the inner cylinder 17. The heat insulation plate 12 is adhered to the inside of the inner cylinder 17 with adhesive. The main function of the heat insulation plate is to block heat and prevent excessive heat from the oil cavity from dissipating into the inner cylinder. In this way, more heat can be concentrated in the roller area, thereby effectively improving heating efficiency, reducing heat waste, and also preventing damage to the components inside the inner cylinder due to excessive temperature.

[0027] The adjusting mechanism 5 consists of a bidirectional threaded cylinder 9 and threaded rods 8. The threaded rods 8 are rotatably mounted at the upper and lower ends of the threaded cylinder. The threaded rods 8 at both ends of the bidirectional threaded cylinder 9 are mounted in the middle of the mounting frame 4. Threaded rods are installed at the upper and lower ends of the bidirectional threaded cylinder, and the thread directions of these two threaded rods are opposite. When the bidirectional threaded cylinder is rotated, the threaded rods at the upper and lower ends will move relative to or away from each other due to the action of the threads. These two threaded rods are mounted in the middle of the mounting frame. Through this movement, the height or horizontal position of the heating roller can be adjusted to adapt to different working requirements.

[0028] A limiting plate 7 is installed inside the bidirectional threaded cylinder 9 on the threaded rod 8. The limiting plate 7 is welded to one end of the threaded rod 8. Fixing bolts 10 are installed at both ends of the bidirectional threaded cylinder 9. The fixing bolts 10 are rotatably installed at both ends of the bidirectional threaded cylinder 9. The function of the limiting plate is to prevent the threaded rod from detaching from the bidirectional threaded cylinder during movement. Fixing bolts are also installed at both ends of the bidirectional threaded cylinder. After adjustment to a suitable position, the fixing bolts are rotated to make them tightly contact the threaded rod, thereby fixing the threaded rod in place, ensuring the stability of the adjustment mechanism, and preventing positional changes during operation.

[0029] A wire mesh 18 is installed on the outside of the conductor 20, wrapping around it. A rubber sleeve 6 is slidably installed on the outside of the conductor 20, embedded inside one side of the roller 2. The wire mesh enhances the strength of the conductor, preventing damage during roller rotation due to pulling, squeezing, or other external forces. Simultaneously, the rubber sleeve slidably installed on the outside of the conductor, embedded inside one side of the roller, further protects the conductor, provides a seal to prevent leakage of heat transfer oil from the oil chamber, and reduces friction between the conductor and the roller.

[0030] A heat-conducting plate 16 is provided on the outside of the heating rod 13. The heat-conducting plate 16 is welded to the outside of the heating rod 13. The heat-conducting plate can increase the contact area between the heating rod and the heat-conducting oil, so that the heat generated by the heating rod can be transferred to the heat-conducting oil more quickly and evenly, improve the heat conduction efficiency, and thus make the temperature distribution on the roller surface more uniform, ensuring the stability of the heating effect.

[0031] A chrome-plated layer 11 is provided on the outer side of the roller 2. The chrome-plated layer 11 is attached to the outer side of the roller 2. The chrome-plated layer has high hardness and wear resistance, which can significantly improve the surface hardness of the roller, reduce wear during contact with materials, and extend the service life of the roller. In addition, the surface of the chrome-plated layer is smooth, which can effectively reduce friction with materials and prevent materials from sticking to the roller, thereby ensuring heating effect and product quality, and making the surface of the processed product smoother and flatter.

[0032] The working principle and usage process of this utility model are as follows: When the heating roller is working, the operator first rotates the bidirectional threaded cylinder to adjust the extension and retraction of the threaded rod, and then drives the mounting frame and roller to rise and fall to the optimal height of the production line. After that, the fixing bolt is tightened to lock the position. At this time, the shafts at both ends of the roller form a freely rotatable structure with the mounting frame through the bearings. During the rotation of the roller, the heating rod is powered through the conductive slip ring. After the heating rod is powered on, it will generate heat, which will heat the heat-conducting oil inside the oil chamber, thereby heating the roller.

[0033] Finally, it should be noted that the above are merely preferred embodiments of this utility model and are not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A heat conducting oil internal circulation type heating roller comprising a heating roller (1); characterized in that: The heating roller (1) consists of a roller (2) and a mounting frame (4). The roller (2) has shafts (3) installed at both ends. The shafts (3) are rotatably mounted on the upper side of the mounting frame (4). The mounting frame (4) has an adjustment mechanism (5) installed at the bottom. The roller (2) has an inner cylinder (17) installed inside. A support plate (14) is welded between the inner cylinder (17) and the roller (2). An oil cavity (15) is formed between the roller (2) and the inner cylinder (17). A heating rod (13) is installed inside the oil cavity (15). One end of the heating rod (13) is installed at one end of the roller (2). A wire (20) is installed at one end of the heating rod (13). The other end of the wire (20) is connected to a conductive slip ring (21). The conductive slip ring (21) is installed on the outside of the shaft (3). The outside of the conductive slip ring (21) is fixedly mounted on the upper side of the mounting frame (4).

2. The heating roller according to claim 1, wherein: The inner cylinder (17) is provided with a heat insulation plate (12), which is attached to the inside of the inner cylinder (17) by adhesive.

3. The heating roller according to claim 1, wherein: The adjustment mechanism (5) consists of a bidirectional threaded cylinder (9) and a threaded rod (8). The threaded rod (8) is rotatably mounted on the upper and lower ends of the threaded cylinder, and the threaded rods (8) at the upper and lower ends of the bidirectional threaded cylinder (9) are mounted in the middle position of the mounting frame (4).

4. The heating roll according to claim 3, wherein: The threaded rod (8) is provided with a limiting plate (7) in the inner section of the bidirectional threaded cylinder (9). The limiting plate (7) is welded to one end of the threaded rod (8). The upper and lower ends of the bidirectional threaded cylinder (9) are provided with fixing bolts (10), which are rotatably installed at both ends of the bidirectional threaded cylinder (9).

5. The heating roller according to claim 1, wherein: A wire mesh (18) is installed on the outside of the conductor (20), the wire mesh (18) is wrapped around the outside of the conductor (20), and a rubber sleeve (6) is slidably installed on the outside of the conductor (20), the rubber sleeve (6) is embedded inside one side of the roller (2).

6. The internally circulating heating roll according to claim 1, wherein: A heat-conducting plate (16) is provided on the outside of the heating rod (13), and the heat-conducting plate (16) is welded to the outside of the heating rod (13).

7. The heating roller according to claim 1, wherein: A chromium plating layer (11) is provided on the outside of the roller (2), and the chromium plating layer (11) is attached to the outside of the roller (2).

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