Pressing roller with heating device

Abstract

The utility model belongs to the technical field of material pressing rollers, in particular to a material pressing roller with a heating device, which comprises a roller body and an abutting disc, side rings are fixed at two ends of the roller body, and one side of the abutting disc is connected with a first connecting shaft and a second connecting shaft. The first heating cavity and the second heating cavity are formed in the roller body and used for conducting heat in a layered mode, and the heat can be more evenly transferred to the surface of the roller. Due to the arrangement of the double-layer heating wire, thermal stress can be dispersed, the damage risk caused by overheating of the single-layer heating wire is reduced, and the working quality of the pressing roller is improved; the insulating layer and the protective layer are arranged on the outer side of the roller body, the insulating layer can prevent heat from being dissipated outwards, and it is ensured that energy generated by heating can be effectively transmitted to materials; the protective layer is in direct contact with the materials, abrasion of the materials to the roller body can be reduced, and the service life of the pressing roller is prolonged.

Description

Technical Field

[0001] This utility model belongs to the field of pressure roller technology, specifically a pressure roller with a heating device. Background Technology

[0002] Material pressing rollers are important pieces of equipment widely used in material processing, especially in the food, chemical, and pharmaceutical industries. Their main function is to compact materials by applying pressure, thereby increasing their density. Material pressing rollers are typically made of high-strength materials. During operation, materials enter between the rollers through the feed inlet, are pressed, and then discharged from the outlet.

[0003] When existing pressing rollers press materials, some materials require specific temperature ranges for optimal pressing results. Therefore, the materials are preheated or other heated rollers are used to extrude the materials. However, this requires additional heating elements, which is cumbersome and energy-consuming. Installing a layer of electric heating wire inside the pressing roller can increase its temperature, but the temperature of a single layer of electric heating wire is prone to being too high or too low, and damage to it can affect the working quality of the pressing roller. Summary of the Invention

[0004] The purpose of this invention is to provide a pressing roller with a heating device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a pressing roller with a heating device, comprising a roller body and a contact disc, wherein side rings are fixed at both ends of the roller body, the contact disc is disposed inside the side rings, a first connecting shaft and a second connecting shaft are connected to one side of the contact disc, and the first connecting shaft and the second connecting shaft are respectively located at both ends of the roller body, an arc-shaped plate is fixed on the surface of the contact disc near the first connecting shaft and the second connecting shaft, bolts are threaded through the inner side of the arc-shaped plate and both sides of the side rings, a first heating chamber and a second heating chamber are opened inside the roller body, a first heating wire is installed inside the first heating chamber, a second heating wire is installed inside the second heating chamber, and one end of the first heating wire and the second heating wire passes through the inner side of the first connecting shaft.

[0006] Preferably, a cooling channel is provided in the middle of the roller body, and a cooling pipe interface is fixed on the outer side of the roller body near the cooling channel.

[0007] Preferably, an insulating layer is fixedly welded to the outer side of the roller body, and a protective layer is fixedly sleeved on the outer side of the insulating layer.

[0008] Preferably, the inner wall of the abutting disc near the side ring is fixed with a ring-shaped distribution of insertion blocks, and the inner wall of the side ring near the insertion blocks is provided with a ring-shaped distribution of insertion grooves.

[0009] Preferably, the insulating layer is made of high-temperature resistant insulating material such as ceramic fiber or aluminum silicate, and the protective layer is made of high wear-resistant ceramic or metal-based composite material.

[0010] Preferably, a docking ring is fixedly welded to the outer edge of the abutting disc, the cross-sectional shape of the docking ring is set to an L-shape, and the thickness of the side ring edge matches the thickness of the docking ring groove.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. This utility model is equipped with an insulation layer, a protective layer, and a first heating wire and a second heating wire. By setting up a double-layer heating structure with the first and second heating wires, heat can be provided at multiple levels of the roller body. The double-layer heating wire can disperse thermal stress, reduce the risk of damage caused by overheating of the single-layer heating wire, and improve the working quality of the pressing roller. The cooling pipe interface can be connected to an external water cooling pipe to deliver cooling water into the cooling channel. The spiral cooling channel can cool the roller body after the material processing is completed and after the first and second heating wires stop working, avoiding the roller body from being too hot for a long time. The protective layer and the insulation layer can reduce the wear caused by the material on the roller body and extend the service life of the pressing roller.

[0013] 2. This utility model is equipped with an arc-shaped plate, a side ring, and a docking retaining ring. When it is necessary to inspect and maintain the first heating wire and the second heating wire inside the roller body 1, the bolts are removed from both sides of the arc-shaped plate and the side ring, and then the first connecting shaft or the second connecting shaft is pulled. This causes the first connecting shaft or the second connecting shaft to move the abutment disc. At the same time, the abutment disc causes the insertion block to disengage from the insertion groove and the groove of the docking retaining ring to disengage from the side ring. This allows for the inspection and maintenance of the first heating wire and the second heating wire inside the roller body 1. The multiple limiting structures facilitate disassembly and improve the installation stability of the pressure roller, making maintenance and repair convenient. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0015] Figure 2 This is a three-dimensional structural diagram of the roller body of this utility model;

[0016] Figure 3 This is a three-dimensional exploded structural diagram of the present invention;

[0017] Figure 4This is a three-dimensional structural diagram of the abutting disc of this utility model;

[0018] Figure 5 This is a three-dimensional structural diagram of the docking ring of this utility model;

[0019] Figure 6 This is a three-dimensional cross-sectional structural diagram of the side ring of this utility model;

[0020] Figure 7 This is a three-dimensional cross-sectional structural diagram of the roller body of this utility model;

[0021] Figure 8 This is a three-dimensional structural diagram of the cooling channel of this utility model;

[0022] Figure 9 This is a three-dimensional structural diagram of the second heating chamber of this utility model.

[0023] In the diagram: 1. Roller body; 2. Side ring; 3. Connecting ring; 4. Insulation layer; 5. Protective layer; 6. First heating wire; 7. Second heating wire; 8. Cooling pipe interface; 9. Abutting disc; 10. First connecting shaft; 11. Arc plate; 12. Bolt; 13. Second connecting shaft; 14. Insertion block; 15. Insertion groove; 16. First heating chamber; 17. Second heating chamber; 18. Cooling channel. 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 Figures 1-4 , Figure 6 , Figure 7 and Figure 9 This utility model provides a technical solution: a pressing roller with a heating device, including a roller body 1 and an abutting disc 9. Both ends of the roller body 1 are fixed with side rings 2. The abutting disc 9 is disposed inside the side rings 2. A first connecting shaft 10 and a second connecting shaft 13 are connected to one side of the abutting disc 9, and the first connecting shaft 10 and the second connecting shaft 13 are respectively located at both ends of the roller body 1.

[0026] Please see Figures 1-3 and Figures 7-9The roller body 1 has a first heating chamber 16 and a second heating chamber 17 inside. A first heating wire 6 is installed inside the first heating chamber 16, and a second heating wire 7 is installed inside the second heating chamber 17. One end of the first heating wire 6 and the second heating wire 7 passes through the inside of the first connecting shaft 10. An insulating layer 4 is fixedly welded to the outside of the roller body 1, and a protective layer 5 is fixedly sleeved on the outside of the insulating layer 4. A cooling channel 18 is opened in the middle of the roller body 1, and a cooling pipe interface 8 is fixed on the outer side of the roller body 1 near the cooling channel 18. The insulating layer 4 is made of high-temperature resistant insulating material such as ceramic fiber or aluminum silicate, and the protective layer 5 is made of high wear-resistant ceramic or metal-based composite material.

[0027] In practical implementation, this utility model provides a first heating chamber 16 and a second heating chamber 17 within the roller body 1 for layered heat conduction. Simultaneously, a double-layer heating structure with a first heating wire 6 and a second heating wire 7 is provided, enabling heat to be delivered to multiple layers of the roller body 1. This allows for more even heat transfer to the roller surface. The double-layer heating wire configuration disperses thermal stress, reducing the risk of damage to a single-layer heating wire due to overheating. Furthermore, if one heating wire fails, the other can continue operating, improving the working quality of the pressing roller. The cooling pipe interface 8 can be connected to an external... A water-cooled pipe is connected to deliver cooling water into the cooling channel 18. The spiral cooling channel 18 can cool the roller body 1 after the material processing is completed and the first heating wire 6 and the second heating wire 7 stop working, thus preventing the roller body 1 from being too hot for a long time. An insulation layer 4 and a protective layer 5 are provided on the outside of the roller body 1. The material of the insulation layer 4 can prevent heat from dissipating outward and ensure that the energy generated by heating can be effectively transferred to the material. The protective layer 5 is in direct contact with the material, which can reduce the wear caused by the material on the roller body 1 and extend the service life of the pressing roller.

[0028] Please see Figures 1-6 An arc-shaped plate 11 is fixed on one side surface of the abutting disc 9 near the first connecting shaft 10 and the second connecting shaft 13. Bolts 12 are threaded through the inner side of the arc-shaped plate 11 and both sides of the side ring 2. A ring-shaped plug-in block 14 is fixed on the inner wall of the abutting disc 9 near the side ring 2. A ring-shaped plug-in groove 15 is opened on the inner wall of the side ring 2 near the plug-in block 14. A docking retaining ring 3 is fixedly welded to the outer edge of the abutting disc 9. The cross-sectional shape of the docking retaining ring 3 is set as an L-shaped structure. The thickness of the edge of the side ring 2 matches the thickness of the groove of the docking retaining ring 3. Both the plug-in block 14 and the plug-in groove 15 are polygonal structures.

[0029] In practice, the first heating wire 6 and the second heating wire 7 inside the roller body 1 need to be inspected and maintained. This can be done by removing the bolts 12 from both sides of the arc plate 11 and the side ring 2, and then pulling the first connecting shaft 10 or the second connecting shaft 13. This causes the first connecting shaft 10 or the second connecting shaft 13 to move the abutting disc 9. At the same time, the abutting disc 9 causes the insertion block 14 to disengage from the insertion groove 15 and the groove of the docking ring 3 to disengage from the side ring 2. This allows the first heating wire 6 and the second heating wire 7 inside the roller body 1 to be inspected and maintained. The multiple limiting structures and the polygonal structure of the insertion block 14 and the insertion groove 15 improve stability and prevent the abutting disc 9 from shifting. This facilitates disassembly and improves the installation stability of the pressure roller, making maintenance and repair easier.

[0030] Working principle: When using this utility model, the second connecting shaft 13 is first connected to an external power source. The external power source drives the entire pressing roller to rotate and press the material. At the same time, the first heating wire 6 and the second heating wire 7 heat up, so that the temperature is evenly distributed on the pressing roller to heat press the material. After the work is completed, the pressing roller is cooled through the cooling channel 18. The limiting structure at both ends of the roller body 1 can be quickly disassembled through the arc plate 11, the side ring 2 and the docking retainer 3, which facilitates the inspection and maintenance of the first heating wire 6 and the second heating wire 7 inside the roller body 1 and improves the installation stability of the pressing roller. The contents not described in detail in this description belong to the prior art known to those skilled in the art.

[0031] Although the present invention 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 the present invention should be included within the protection scope of the present invention.

Claims

1. A pressing roller with a heating device, comprising a roller body (1) and an abutting disc (9), characterized in that: Both ends of the roller body (1) are fixed with side rings (2). The abutting disc (9) is disposed inside the side rings (2). A first connecting shaft (10) and a second connecting shaft (13) are connected to one side of the abutting disc (9). The first connecting shaft (10) and the second connecting shaft (13) are respectively located at both ends of the roller body (1). The abutting disc (9) is close to the first connecting shaft (10) and the second connecting shaft. ( An arc-shaped plate (11) is fixed on one side surface of the roller body (13). Bolts (12) are threaded through the inner side of the arc-shaped plate (11) and the two sides of the side ring (2). A first heating chamber (16) and a second heating chamber (17) are opened inside the roller body (1). A first heating wire (6) is installed on the inner side of the first heating chamber (16), and a second heating wire (7) is installed on the inner side of the second heating chamber (17). One end of the first heating wire (6) and the second heating wire (7) passes through the inner side of the first connecting shaft (10).

2. A pressing roller with a heating device according to claim 1, characterized in that: A cooling channel (18) is provided in the middle of the roller body (1), and a cooling pipe interface (8) is fixed on the outer side of the roller body (1) near the cooling channel (18).

3. A pressing roller with a heating device according to claim 2, characterized in that: An insulating layer (4) is fixedly welded to the outside of the roller body (1), and a protective layer (5) is fixedly sleeved on the outside of the insulating layer (4).

4. A pressing roller with a heating device according to claim 2, characterized in that: The abutting disc (9) has a ring-shaped plug-in block (14) fixed on the inner wall near the side ring (2), and the side ring (2) has a ring-shaped plug-in groove (15) on the inner wall near the plug-in block (14).

5. A pressing roller with a heating device according to claim 3, characterized in that: The insulating layer (4) is made of high-temperature resistant insulating material such as ceramic fiber or aluminum silicate, and the protective layer (5) is made of high wear-resistant ceramic or metal-based composite material.

6. A pressing roller with a heating device according to claim 4, characterized in that: The outer edge of the abutting disc (9) is fixedly welded with a docking ring (3). The cross-sectional shape of the docking ring (3) is set as an L-shaped structure, and the thickness of the edge of the side ring (2) matches the thickness of the groove of the docking ring (3).

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