Wide cold roll heat treatment device

Abstract

The utility model relates to the technical field of cold roll heat treatment, and particularly provides a wide cold roll heat treatment device. The device comprises the shell and the functional mechanism, the functional mechanism comprises the fixing frame, the functional mechanism is arranged, the hydraulic cylinder drives the top cover to rise, the bottom plate is located above the shell, and sufficient space is provided for transverse placement of the cold roll; the cold roller lifting device effectively prevents the cold roller from being longitudinally lifted into equipment from the upper portion to be blocked and collided, improves the loading and unloading efficiency, and the motor drives the lead screw to rotate to enable the bottom plate and the top plate to limit and fix the cold roller through the limiting grooves, so that the stability and accuracy of the cold roller in the lifting process are ensured, and the cold roller is located in the middle in the equipment. When the cold roll is heated by the heating wire, the upper end and the lower end are in the range of the heating wire, so that the heat treatment consistency of the cold roll is effectively guaranteed, and the heat treatment quality is improved.

Description

Technical Field

[0001] This utility model relates to the field of heat treatment technology for cold rolling rolls, and in particular to a heat treatment device for wide cold rolling rolls. Background Technology

[0002] Cold rolling rolls are key components in the metal processing field. They typically employ a flat roll design and are primarily used for cold working of metal materials. By applying pressure and friction, they induce plastic deformation in the material, thereby refining the grain size and improving the material's strength, hardness, and toughness. Their structural features include a mandrel, bearings, an outer sleeve, and sealing devices. A search revealed Chinese patent CN219409835U, which discloses a cold rolling roll heat treatment device comprising a shell, an insulation layer inside the shell, an insulation base at the bottom of the shell, and a top cover. The insulation base has multiple insertion ports. The device includes a heating assembly comprising multiple uprights evenly spaced in a circular pattern. Multiple circular frames are fitted around the uprights, and each circular frame has several positioning wheels evenly distributed on its inner wall. Heating wires are wound in an S-shape between the positioning wheels and the circular frames and uprights, evenly distributed within the outer casing and wound along the positioning wheels. In use, the heating wires heat the interior. The heating wires wound around the positioning wheels provide uniform heating to the internal area, ensuring even heating of the rollers placed in the insertion slot, significantly increasing heating efficiency and improving practicality.

[0003] The inventors of this application have discovered the following problems during practical use:

[0004] Because the equipment requires the cold rolling rolls to be placed vertically inside the equipment for heat treatment, but because the cold rolling rolls are long and bulky, they need to be hoisted into the equipment from above using hoisting equipment. During the hoisting process, they are easily blocked by the top cover and collide with it, making the operation cumbersome and affecting the processing efficiency. In addition, the cold rolling rolls placed in the bottom slot are not in the middle of the equipment, which can easily lead to uneven heating of the cold rolling rolls and affect the heat treatment effect.

[0005] Therefore, it is necessary to provide a heat treatment device for wide-width cold rolling rolls to solve the above-mentioned technical problems. Utility Model Content

[0006] The technical problem to be solved by this utility model is that the cold rolling roll hoisting process is easily obstructed, the operation is cumbersome, and the heating is uneven. In view of the above-mentioned defects of the prior art, a heat treatment device for wide cold rolling rolls is provided.

[0007] To achieve the above objectives, the technical solution of this utility model is: a wide-width cold rolling roll heat treatment device, comprising a housing and a functional mechanism. The functional mechanism includes a fixed frame, a top cover fixedly connected to the bottom of the fixed frame, a motor mounted on the top of the fixed frame, a lead screw mounted on the output end of the motor, a limit block fixedly connected to one end of the lead screw, a top plate fixedly connected to the side of the lead screw away from the limit block, a first limit groove formed at the bottom of the top plate, a bottom plate threadedly connected to the side of the lead screw near the limit block, a second limit groove formed at the top of the bottom plate, and a guide rod fixedly connected to the bottom of the top cover, the guide rod penetrating the top plate and the bottom plate.

[0008] By adopting the above technical solution, the motor drives the lead screw to rotate, and the threaded connection enables precise lifting and lowering of the base plate, which facilitates the operator to accurately adjust the distance between the base plate and the top plate, thereby achieving stable fixing and conveying of the cold rolling roll.

[0009] Furthermore, the first limiting groove and the second limiting groove are both arranged in a circular array with four grooves evenly spaced, and the positions of the four first limiting grooves and the second limiting grooves correspond to each other in pairs.

[0010] By adopting the above technical solution, the four first limiting grooves and the second limiting grooves are all arranged in a circumferential array at equal intervals, enabling the equipment to process multiple cold rolling rolls at one time and improving heat treatment efficiency.

[0011] Furthermore, the guide rods are arranged in a circumferential array of four equally spaced rods, and the guide rods are staggered with the first limiting groove.

[0012] By adopting the above technical solution, the four guide rods are arranged in a circumferential array at equal intervals, providing stable support and guidance for the top and bottom plates, ensuring that the top and bottom plates can move smoothly along the predetermined path, avoiding deviation or shaking, and improving the stability of the device.

[0013] In a further configuration, the inner wall of the outer shell is provided with a circular frame, and a plurality of positioning wheels are fixed on the inner wall of the circular frame, with heating wires wound between the positioning wheels.

[0014] By adopting the above technical solution, the positioning wheels are evenly distributed on the inner wall of the ring frame, and the heating wire is wound between these positioning wheels, ensuring the uniform distribution of the heating wire in the device. This allows the heat generated by the heating wire to be evenly transferred to the cold rolling roll, avoiding the problems of local overheating or uneven heating, and improving the quality and effect of heat treatment.

[0015] Furthermore, an insulation base is provided at the bottom of the interior of the outer shell, and the insulation layer of the insulation base is made of expanded perlite.

[0016] By adopting the above technical solution, the heat insulation base is set inside the lower part of the shell, which can effectively reduce heat loss, reduce energy consumption, and help reduce operating costs, while effectively maintaining the temperature uniformity in the heat treatment area.

[0017] Furthermore, a hydraulic cylinder is provided on one side of the outer casing, and one end of the hydraulic cylinder is fixedly connected to a frame, which is fixedly connected to a fixed frame.

[0018] By adopting the above technical solution, the hydraulic cylinder serves as the power source, ensuring that the fixed frame and all its components maintain a stable motion state throughout the entire operation process, thereby improving the reliability of the device and simplifying the operation process.

[0019] Compared with related technologies, the wide-width cold rolling roll heat treatment device provided by this utility model has the following beneficial effects:

[0020] This utility model provides a heat treatment device for wide-width cold rolling rolls. Through a functional mechanism, a hydraulic cylinder drives the top cover to rise, placing the bottom plate above the outer shell. This provides ample space for the lateral placement of the cold rolling rolls, effectively preventing obstruction and collisions when hoisting them vertically from above, thus improving loading and unloading efficiency. A motor drives a lead screw to rotate, causing the bottom plate and top plate to be fixed in place by a limiting groove. This ensures the stability and accuracy of the cold rolling rolls during the lifting process and positions them in the middle of the equipment. When the cold rolling rolls are heated by the heating wire, both the upper and lower ends are within the range of the heating wire, effectively ensuring the consistency of the heat treatment and increasing the quality of the heat treatment. Attached Figure Description

[0021] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0022] Figure 2 This is a partial cross-sectional view of the present invention.

[0023] Figure 3 This is a schematic diagram of the functional mechanism of this utility model;

[0024] Figure 4 This is a partial cross-sectional view of the functional mechanism of this utility model.

[0025] The following components are labeled in the diagram: 1. Outer shell; 2. Insulated base; 3. Ring frame; 4. Hydraulic cylinder; 5. Frame; 6. Functional mechanism; 601. Fixing frame; 602. Top cover; 603. Motor; 604. Lead screw; 605. Limiting block; 606. Top plate; 607. First limiting groove; 608. Base plate; 609. Second limiting groove; 610. Guide rod; 7. Positioning wheel; 8. Heating wire. Detailed Implementation

[0026] To facilitate understanding of this utility model, a more comprehensive description will be provided below with reference to the accompanying drawings. The drawings show typical embodiments of this utility model.

[0027] like Figures 1-4 As shown, a wide-width cold rolling mill heat treatment device of this utility model includes a housing 1 and a functional mechanism 6. The functional mechanism 6 includes a fixing frame 601, a top cover 602 fixedly connected to the bottom of the fixing frame 601, a motor 603 mounted on the top of the fixing frame 601, a lead screw 604 mounted on the output end of the motor 603, a limit block 605 fixedly connected to one end of the lead screw 604, a top plate 606 fixedly connected to the side of the lead screw 604 away from the limit block 605, a first limiting groove 607 formed at the bottom of the top plate 606, and a bottom plate 608 threadedly connected to the side of the lead screw 604 near the limit block 605, with a first limiting groove 607 formed at the top of the bottom plate 608. A second limiting groove 609 is provided, and a guide rod 610 is fixedly connected to the bottom of the top cover 602. The guide rod 610 passes through the top plate 606 and the bottom plate 608. The motor 603 drives the lead screw 604 to rotate, and the bottom plate 608 is precisely raised and lowered through the threaded connection. This allows the operator to accurately adjust the distance between the bottom plate 608 and the top plate 606, so as to achieve stable fixing and conveying of the cold rolling roll. The guide rod 610 passes through the top plate 606 and the bottom plate 608, providing stable support and guidance for both. During the raising and lowering process, the guide rod 610 ensures that the top plate 606 and the bottom plate 608 can move smoothly along the predetermined path, avoiding deviation or shaking.

[0028] like Figure 1 , Figure 3 , Figure 4 As shown, four first limiting grooves 607 and four second limiting grooves 609 are evenly spaced in a circular array. The positions of the four first limiting grooves 607 and the two second limiting grooves 609 correspond to each other in pairs. The fact that the four first limiting grooves 607 and the two second limiting grooves 609 are evenly spaced in a circular array allows the equipment to process multiple cold rolling rolls at one time, improving heat treatment efficiency. The pairwise correspondence of the first limiting grooves 607 and the second limiting grooves 609 allows the top plate 606 and the bottom plate 608 to fix the cold rolling rolls, ensuring stability.

[0029] like Figure 1 , Figure 2 , Figure 3As shown, four guide rods 610 are evenly spaced in a circular array. The guide rods 610 and the first limiting groove 607 are staggered. The four guide rods 610 are evenly spaced in a circular array, providing stable support and guidance for the top plate 606 and the bottom plate 608. This ensures that the top plate 606 and the bottom plate 608 can move smoothly along the predetermined path, avoiding deviation or shaking, and improving the stability of the device. During the lifting and lowering of the cold rolling roll, the cooperation between the first limiting groove 607 and the guide rods 610 ensures that the cold rolling roll can be accurately positioned in the predetermined position, improving the quality and consistency of heat treatment.

[0030] like Figure 2 As shown, the inner wall of the outer shell 1 is provided with a circular frame 3, and several positioning wheels 7 are fixed on the inner wall of the circular frame 3. Heating wires 8 are wound between the positioning wheels 7. The positioning wheels 7 are evenly distributed on the inner wall of the circular frame 3. The heating wires 8 are wound between these positioning wheels 7, which ensures that the heating wires 8 are evenly distributed in the device, so that the heat generated by the heating wires 8 can be evenly transferred to the cold rolling roll, avoiding the problem of local overheating or uneven heating, and improving the quality and effect of heat treatment. The heating wires 8 are tightly wound between the positioning wheels 7, which reduces heat loss, improves heating efficiency, and avoids the decrease in heating efficiency caused by loosening or deformation.

[0031] like Figure 3 As shown, an insulation base 2 is installed at the bottom inside the outer shell 1. The insulation layer of the insulation base 2 is made of expanded perlite. The insulation base 2 is located at the bottom inside the outer shell 1, which can effectively reduce heat loss, reduce energy consumption, and help reduce operating costs. At the same time, it can effectively maintain the temperature uniformity in the heat treatment area. As an insulation layer, expanded perlite has an extremely low thermal conductivity, which can significantly block heat transfer to the outside and improve the insulation effect. The uniform structure and stable performance of expanded perlite help ensure that the cold rolling roll is heated evenly during the heat treatment process and improve the processing quality.

[0032] like Figure 1 , Figure 4 As shown, a hydraulic cylinder 4 is provided on one side of the outer casing 1. One end of the hydraulic cylinder 4 is fixedly connected to the frame 5. The frame 5 is fixedly connected to the fixed frame 601. The hydraulic cylinder 4 serves as a power source, ensuring that the fixed frame 601 and all its components maintain a stable motion state throughout the entire operation process, thereby improving the reliability of the device and simplifying the operation process. The frame 5, as a bridge connecting the hydraulic cylinder 4 and the fixed frame 601, provides solid structural support, ensuring that the thrust of the hydraulic cylinder 4 can be stably transmitted to the fixed frame 601, thereby driving the movement of the top cover 602 and enhancing the stability of the entire device.

[0033] In practice, firstly, the hydraulic cylinder 4 lifts the top cover 602 and the guide rod 610, placing the bottom plate 608 above the outer shell 1. Then, the cold rolling roll is inserted laterally from the outside between the bottom plate 608 and the top plate 606 and into the second limiting groove 609. Next, the motor 603 is started to rotate the lead screw 604, causing the bottom plate 608 to rise longitudinally along the guide rod 610 until the top of the cold rolling roll is inserted into the first limiting groove 607. Then, the hydraulic cylinder 4 lowers the top cover 602 to engage with the outer shell 1, while the bottom plate 608 brings the cold rolling roll to the middle position inside the outer shell 1. Finally, the heating wire is activated to heat-treat the cold rolling roll.

[0034] The advantages of this technical solution in practical applications include, but are not limited to, the following:

[0035] 1. The top cover is lifted by a hydraulic cylinder, so that the bottom plate is above the outer shell, providing ample space for the lateral insertion of the cold rolling roll;

[0036] 2. The motor drives the lead screw to rotate, causing the bottom plate and top plate to be fixed in place by the limiting groove, so that the cold rolling roll is in the middle position in the equipment, which effectively ensures the consistency of the heat treatment of the cold rolling roll.

[0037] 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 wide cold roll heat treating apparatus characterized by: Including shell (1) and function mechanism (6), the function mechanism (6) includes fixed frame (601), the bottom of fixed frame (601) is fixedly connected with top cover (602), the top of fixed frame (601) is provided with motor (603), the output of motor (603) is provided with lead screw (604), one end of lead screw (604) is fixedly connected with limit block (605), the side of lead screw (604) away from limit block (605) is fixedly connected with top plate (606), the bottom of top plate (606) is opened with first limit slot (607), the side of lead screw (604) close to limit block (605) is fixedly connected with bottom plate (608) through thread, the top of bottom plate (608) is opened with second limit slot (609), the bottom of top cover (602) is fixedly connected with guide rod (610), guide rod (610) penetrates top plate (606) and bottom plate (608).

2. A wide cold roll heat treating apparatus as defined in claim 1 wherein, The first limit slot (607) and the second limit slot (609) are both circumferentially arrayed and uniformly provided with four, the positions of the four first limit slots (607) and the second limit slots (609) correspond to each other in pairs.

3. A wide cold roll heat treating apparatus as defined in claim 1 wherein, The guide rod (610) is circumferentially arrayed and uniformly provided with four, and the guide rod (610) is staggered with the first limit slot (607).

4. A wide cold roll heat treating apparatus as defined in claim 1 wherein, The inner wall of the shell (1) is provided with a circular ring frame (3), a plurality of positioning wheels (7) are fixed to the inner wall of the circular ring frame (3), and a heating wire (8) is wound between the positioning wheels (7).

5. A wide cold roll heat treating apparatus as defined in claim 1 wherein, A heat preservation base (2) is arranged below the inside of the shell (1), and the heat insulation layer of the heat preservation base (2) is made of expanded perlite material.

6. A wide cold roll heat treating apparatus as defined in claim 1 wherein, One side of the shell (1) is provided with a hydraulic cylinder (4), one end of the hydraulic cylinder (4) is fixedly connected with a rack (5), and the rack (5) is fixedly connected with the fixed frame (601).

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