Heating and grinding device for roller machining

By using precision positioning and grinding and a high-efficiency recovery filtration and heating system, the problem of uneven surface of the rolls under high-temperature operation has been solved, improving processing quality and efficiency, reducing heat transfer oil waste, and lowering production costs.

CN223477139UActive Publication Date: 2025-10-28LIAONING HENGTONG METALLURGICAL EQUIP MFG CO LTD
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Patent Information

Application Number
CN202422888991.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-26
Publication Date
2025-10-28
Estimated Expiration
2034-11-26

AI Technical Summary

Technical Problem

Under high-temperature operation of rolling mill rolls, the surface of the rolls becomes uneven due to material differences and heat treatment residues, affecting processing accuracy and consistency. Traditional heating processing equipment is inefficient and wastes heat transfer oil resources significantly.

Method used

By employing precision positioning and grinding technology and a high-efficiency recovery filtration and heating system, combined with the recycling of heat transfer oil, uniform heating and fine grinding of the rolls are achieved. The positioning and grinding structure and the recovery filtration and heating structure ensure that the heat transfer oil can be reused under constant temperature conditions, avoiding frequent replacements.

Benefits of technology

It improved the quality and efficiency of roll processing, extended the service life of heat transfer oil, reduced production costs, and achieved energy saving and consumption reduction.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223477139U_ABST
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Abstract

The utility model discloses a heating and polishing device for roller machining. The heating and polishing device comprises a device shell, a sealing cabin door and an oil body storage cabin. The utility model relates to the technical field of roller processing, the innovative device ingeniously fuses a precise positioning and polishing technology and an efficient recycling, filtering and heating system, excellent heating and fine polishing treatment of a roller in a heat conduction oil environment are achieved, and in the device, after the heat conduction oil is fully heated, through a positioning and polishing structure, the roller is subjected to fine polishing treatment. Continuous and accurate displacement operation is achieved, it is ensured that each face can be evenly and efficiently polished, and therefore the machining quality and efficiency are remarkably improved.
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Description

Technical Field

[0001] This utility model relates to the field of rolling mill processing technology, specifically a heating and grinding device for rolling mill processing. Background Technology

[0002] In current industrial applications, the medium to high precision grinding of rolls used in the processing of nonwoven fabrics, paper, films, plastic sheets, and metal materials is often limited to room temperature environments. However, when subsequent critical processes such as calendering, embossing, perforation, and lamination are performed, the rolls need to be operated at high temperatures ranging from 130°C to 300°C to ensure optimized process effects and product quality. Due to the special nature of the roll material, the microscopic distribution of its metal crystals is difficult to achieve absolute uniformity. In addition, uneven hardness may be introduced during the heat treatment of the roll blank. This characteristic is particularly pronounced when the roll is heated. Specifically, when a roll that has been carefully ground to a smooth finish at room temperature is heated to a working temperature such as 200°C, different parts of the roll will exhibit different thermal expansion characteristics due to material differences and residual issues from heat treatment. This leads to subtle changes in the surface flatness of the roll, resulting in localized unevenness. Such surface unevenness directly restricts the precision and consistency of the material processing process and may not only cause localized material defects, such as indentations... Unevenness and disordered textures significantly increase the scrap rate, posing a severe challenge to production efficiency and cost control. Therefore, effectively addressing the deformation of rolls under high-temperature operation and ensuring that the roll surface maintains high precision flatness has become crucial for improving material processing quality and reducing the scrap rate. Currently, the heating and grinding equipment widely used in the industry generally faces a dual challenge of efficiency and cost in its operation process: whenever debris is mixed into the heat transfer oil, the traditional approach often requires a complete replacement of the entire batch of heat transfer oil before continuing subsequent processing steps. This approach not only significantly slows down the production cycle and reduces overall processing efficiency but also leads to a huge waste of heat transfer oil resources, undoubtedly posing a significant obstacle to optimizing production costs. Therefore, exploring and implementing a more efficient and economical heat transfer oil management strategy is particularly urgent and important for improving production efficiency and reducing operating costs. While existing technologies may already provide solutions to the above problems, this case aims to provide an alternative or replacement technical solution. Utility Model Content

[0003] To achieve the above objectives, this utility model is implemented through the following technical solution: a heating and grinding device for rolling mill processing, comprising: a device housing, a sealed door and an oil storage tank, wherein the sealed door is installed on the device housing, a recovery, filtration and heating structure is installed on the oil storage tank, and an adjustment and grinding structure is installed inside the device housing;

[0004] The adjustment and grinding structure includes: a connecting oil return pipe, a roller body self-rotation power chamber, a self-rotation power motor, an electric chuck, a telescopic air rod, a supporting roller pad, a grinding and adjustment motor, an adjustment threaded rod, an adjustment module, an electric telescopic rod, and an integrated grinding head;

[0005] The connecting oil return pipe is installed on the device housing and connected to the oil storage chamber. The roller spin power chamber is installed on the device housing. The spin power motor is installed inside the roller spin power chamber. The electric chuck is connected to the spin power motor via a rotating shaft and is installed inside the device housing. The telescopic air rod is installed inside the device housing. The supporting roller pad is installed on the telescopic air rod. The grinding and adjusting motor is installed on the device housing. The adjusting threaded rod is connected to the grinding and adjusting motor. The adjusting module is fitted on the outside of the adjusting threaded rod. The electric telescopic rod is installed on the adjusting module. The integrated grinding head is installed on the electric telescopic rod.

[0006] It should be noted that, as described above, the heat transfer oil is injected into the oil storage chamber through the oil inlet. The heat transfer oil then passes through the recovery, filtration, and heating structure into the connecting return oil pipe, and finally flows into the device housing. Before adding the heat transfer oil, the rolling mill is inserted into the device housing. After closing the sealed door, the electric chuck is driven to retract, clamping the rolling mill. The telescopic air rod is then driven to extend or retract, ensuring that the supporting pad fully conforms to the surface of the rolling mill, lifting the rolling mill. Subsequently, the spin motor in the rolling mill's spin power chamber is driven to rotate, which in turn causes the electric chuck to rotate, thus fixing the rolling mill. Driven to rotate, the electric telescopic rod extends, causing the integrated grinding head to come into contact with the surface of the rolling mill. After the rolling mill, heated by the heat transfer oil, is heated to the target temperature, grinding can begin. The grinding adjustment motor rotates, causing the adjustment threaded rod to rotate, which in turn causes the adjustment module to shift, and the electric telescopic rod and integrated grinding head to reciprocate horizontally, thus performing the heating and grinding operation on the heated rolling mill. The auxiliary sealing ring on the sealed door makes the seal between the sealed door and the device housing tighter, preventing the heat transfer oil inside from leaking.

[0007] Preferably, the recovery filtration and heating structure includes: a suction pump body, an integrated filter chamber, an outer temperature detector, a pair of inner heaters, and an oil inlet;

[0008] The suction pump body is connected to the oil storage tank through a pipe, and the suction pump body is also connected to the device housing through a pipe. The integrated filter chamber is installed at the bottom inside the oil storage tank. The outer temperature detector is installed on the outside of the oil storage tank and is fitted onto the outside of the connecting return oil pipe. A pair of internal heaters are installed inside the oil storage tank, and the oil inlet is installed on the oil storage tank.

[0009] It should be noted that, as described above, the heat transfer oil inside the device housing is drawn into the oil storage chamber by the suction pump. First, the heat transfer oil is filtered by the integrated filter chamber. After filtration, the heat transfer oil is squeezed by pressure into the connecting return oil pipe and flows back into the device housing for reuse. A pair of internal heaters control the heating amplitude according to the temperature sensor installed in the oil storage chamber, so that the returning heat transfer oil always maintains the target temperature. The outer temperature detector on the outside rechecks the temperature of the heat transfer oil and coordinates the internal heaters to control the heating amplitude of the heat transfer oil, thereby completing the heating and grinding cycle of the entire device. The residue collection door installed on the integrated filter chamber can clean the integrated filter chamber when there is too much residue.

[0010] Preferably, a temperature sensor is installed inside the oil storage tank;

[0011] Preferably, the sealed door is provided with an auxiliary sealing ring;

[0012] Preferably, the outer jacket temperature detector is equipped with a temperature detector;

[0013] Preferably, the integrated filter chamber is equipped with a residue collection door. Beneficial effects

[0014] This invention provides a heating and grinding device for rolling mill processing. It offers the following advantages compared to existing technologies: This innovative device cleverly integrates precision positioning grinding technology with a high-efficiency recovery filtration and heating system, achieving superior heating and fine grinding of the rolling mill rolls in a heat transfer oil environment. In this device, after the rolling mill rolls are fully heated by the heat transfer oil, the positioning grinding structure enables continuous and precise repositioning operations, ensuring that each side receives uniform and efficient grinding, thereby significantly improving processing quality and efficiency. Particularly noteworthy is the recovery filtration and heating structure introduced in this device, which achieves closed-loop management of the heat transfer oil during its recycling process. This mechanism not only ensures that the heat transfer oil is finely filtered to remove impurities without losing temperature, effectively extending its service life, but also avoids the high costs associated with frequent oil replacements. Simultaneously, maintaining the heat transfer oil within a constant target temperature range further enhances heating efficiency and grinding effect, achieving the dual goals of energy saving, consumption reduction, and improved production efficiency. Attached Figure Description

[0015] Figure 1 This is a front sectional view of the heating and grinding device for rolling mill processing described in this utility model.

[0016] Figure 2 for Figure 1 A magnified view of the letter "A" in the diagram.

[0017] In the diagram: 1. Device housing; 2. Sealed door; 3. Oil storage tank; 4. Connecting return oil pipe; 5. Roller spin power chamber; 6. Spin power motor; 7. Electric chuck; 8. Telescopic air rod; 9. Roller support pad; 10. Grinding and positioning motor; 11. Positioning threaded rod; 12. Positioning module; 13. Electric telescopic rod; 14. Integrated grinding head; 15. Suction pump body; 16. Integrated filter chamber; 17. Outer casing temperature detector; 18. Internal heater; 19. Oil inlet. Detailed Implementation

[0018] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0019] Those skilled in the art should connect all electrical components and their compatible power supplies in this case via wires. Appropriate controllers and encoders should be selected according to the actual situation to meet control requirements. The specific connection and control sequence should refer to the working principle described below, where the electrical components are connected in sequence. The detailed connection methods are well-known in the art. The following mainly introduces the working principle and process, and will not describe the electrical control further. Example

[0020] The present invention will now be described in detail with reference to the accompanying drawings, such as... Figure 1-2As shown, a heated grinding device for rolling mill processing includes: a device housing 1, a sealed door 2, and an oil storage tank 3. The sealed door 2 is installed on the device housing 1. A recovery, filtration, and heating structure is installed on the oil storage tank 3. An adjusting grinding structure is installed inside the device housing 1. The adjusting grinding structure includes: a connecting oil return pipe 4, a roller spin-power chamber 5, a spin-power motor 6, an electric chuck 7, a telescopic air rod 8, a roller support pad 9, a grinding adjusting motor 10, an adjusting threaded rod 11, and an adjusting module 12. The device includes an electric telescopic rod 13 and an integrated grinding head 14; a connecting oil return pipe 4 is installed on the device housing 1 and connected to the oil storage chamber 3; a roller spin power chamber 5 is installed on the device housing 1; a spin power motor 6 is installed inside the roller spin power chamber 5; an electric chuck 7 is connected to the spin power motor 6 via a rotating shaft and is installed inside the device housing 1; a telescopic air rod 8 is installed inside the device housing 1; and a roller support pad 9. The grinding adjustment motor 10 is mounted on the telescopic air rod 8, and the adjustment threaded rod 11 is connected to the grinding adjustment motor 10. The adjustment module 12 is fitted on the outside of the adjustment threaded rod 11. The electric telescopic rod 13 is mounted on the adjustment module 12, and the integrated grinding head 14 is mounted on the electric telescopic rod 13. The recycling filter heating structure includes: a suction pump body 15, an integrated filter chamber 16, an outer temperature detector 17, a pair of inner heaters 18, and a filling pump. Oil inlet 19; the suction pump body 15 is connected to the oil storage chamber 3 through a pipe, and the suction pump body 15 is connected to the device housing 1 through a pipe; the integrated filter chamber 16 is installed at the bottom inside the oil storage chamber 3; the outer jacket temperature detector 17 is installed on the outside of the oil storage chamber 3, and the outer jacket temperature detector 17 is fitted on the outside of the connecting return oil pipe 4; a pair of inner heaters 18 are respectively installed inside the oil storage chamber 3; and the oil inlet 19 is installed on the oil storage chamber 3.

[0021] According to the appendix Figure 1-2It is found that the heat transfer oil is injected into the oil storage chamber 3 through the oil inlet 19. The heat transfer oil will enter the connecting return oil pipe 4 through the recovery filtration and heating structure, and finally flow into the device housing 1. Before adding the heat transfer oil, the rolling mill is inserted into the device housing 1. After closing the sealed door 2, the electric chuck 7 is driven to retract, clamping the rolling mill. The telescopic air rod 8 is driven to extend or retract, so that the supporting pad 9 fully fits the surface of the rolling mill, lifting the rolling mill. Then, the spin of the rolling mill in the self-spinning power chamber 5 is driven. The rotation of the power motor 6 causes the electric chuck 7 to rotate, thereby rotating the fixed rolling mill. This drives the electric telescopic rod 13 to extend, causing the integrated grinding head 14 to contact the surface of the rolling mill. Once the rolling mill, heated by the heat transfer oil, reaches the target temperature, grinding can begin. The grinding adjustment motor 10 rotates, driving the adjustment threaded rod 11 to rotate, which in turn causes the adjustment module 12 to shift position. This, in turn, causes the electric telescopic rod 13 and the integrated grinding head 14 to reciprocate. The horizontal displacement allows for heating and grinding of the rolled mill after heating. The auxiliary sealing ring on the sealed door 2 ensures a tighter fit between the sealed door 2 and the device housing 1, preventing leakage of the heat transfer oil inside. The heat transfer oil inside the device housing 1 is drawn into the oil storage chamber 3 by the suction pump 15. First, the heat transfer oil is filtered by the integrated filter chamber 16. The filtered heat transfer oil is then squeezed by pressure into the connecting return oil pipe 4 and flows back into the device housing 1 for reuse. A pair of internal heaters 18 control the heating amplitude based on the temperature sensor installed in the oil storage chamber 3, ensuring that the returning heat transfer oil always maintains the target temperature. The outer temperature detector 17 rechecks the temperature of the heat transfer oil on the outside, coordinating with the internal heaters 18 to control the heating amplitude of the heat transfer oil, thus completing the heating and grinding cycle of the entire device. The residue collection door on the integrated filter chamber 16 can clean the integrated filter chamber 16 when there is too much residue.

[0022] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A heating and grinding device for processing rolls, comprising: The device housing (1), the sealed door (2) and the oil storage tank (3) are characterized in that the sealed door (2) is installed on the device housing (1), the oil storage tank (3) is equipped with a recovery filtration and heating structure, and the device housing (1) is equipped with an adjustment and grinding structure. The adjustment and grinding structure includes: connecting oil return pipe (4), roller body self-rotation power chamber (5), self-rotation power motor (6), electric chuck (7), telescopic air rod (8), roller support pad (9), grinding adjustment motor (10), adjustment threaded rod (11), adjustment module (12), electric telescopic rod (13), and integrated grinding head (14). The connecting oil return pipe (4) is installed on the device housing (1) and connected to the oil storage chamber (3). The roller spin power chamber (5) is installed on the device housing (1). The spin power motor (6) is installed inside the roller spin power chamber (5). The electric chuck (7) is connected to the spin power motor (6) via a rotating shaft and is installed inside the device housing (1). The telescopic air rod (8) is installed... Inside the housing (1) of the device, the supporting roller pad (9) is installed on the telescopic air rod (8), the grinding and adjusting motor (10) is installed on the housing (1), the adjusting threaded rod (11) is connected to the grinding and adjusting motor (10), the adjusting module (12) is fitted on the outside of the adjusting threaded rod (11), the electric telescopic rod (13) is installed on the adjusting module (12), and the integrated grinding head (14) is installed on the electric telescopic rod (13).

2. The heating and grinding device for rolling mill processing according to claim 1, characterized in that, The recovery filtration and heating structure includes: a suction pump body (15), an integrated filter chamber (16), an outer temperature detector (17), a pair of inner heaters (18), and an oil inlet (19). The suction pump body (15) is connected to the oil storage chamber (3) through a pipe, and the suction pump body (15) is connected to the device housing (1) through a pipe. The integrated filter chamber (16) is installed at the bottom inside the oil storage chamber (3). The outer temperature detector (17) is installed on the outside of the oil storage chamber (3) and is fitted on the outside of the connecting return oil pipe (4). A pair of inner heaters (18) are installed inside the oil storage chamber (3). The oil inlet (19) is installed on the oil storage chamber (3).

3. The heating and grinding device for rolling mill processing according to claim 2, characterized in that, A temperature sensor is installed inside the oil storage tank (3).

4. The heating and grinding device for rolling mill processing according to claim 3, characterized in that, An auxiliary sealing ring is provided on the sealed door (2).

5. The heating and grinding device for rolling mill processing according to claim 4, characterized in that, The outer jacket temperature detector (17) is equipped with a temperature detector.

6. The heating and grinding device for rolling mill processing according to claim 5, characterized in that, The integrated filter chamber (16) is equipped with a residue collection door.