Roll changing device for working roll of cold rolling mill

Abstract

The utility model discloses a cold-rolling mill working roll changing device which comprises a base, a cold-rolling mill body arranged on the right side of the base, an outer shaft arranged on the right side of the cold-rolling mill body, a first-stage rotating shaft arranged in the middle of the right side of the outer shaft, and a roll changing assembly arranged on the outer side of the first-stage rotating shaft. A roll changing opening is formed in the left side of the top of the roll changing assembly, a hooping sleeve is arranged on the right side of the roll changing opening, a hooping ring at the tail end of the right side of the hooping sleeve further fixes or adjusts the position of the hooping sleeve, and the inclined upward structural design of a clamping block adapts to different working conditions or provides better stability; the telescopic hole in the bottom of the clamping block allows the clamping block to have a certain moving space in the vertical direction, so that the clamping block can adapt to different working environments and requirements, flexibility and stability can be provided through the design, and the equipment can better adapt to different requirements and environment changes in the working process.

Description

Technical Field

[0001] The utility model belongs to the technical field related to cold rolling mills, and particularly relates to a working roll changing device for a cold rolling mill. Background Art

[0002] A cold rolling mill is a device used for cold rolling of metal materials. It is mainly used to convert hot-rolled steel into products of required specifications through the cold rolling process. This type of machinery and equipment can effectively improve the utilization efficiency of metal materials and can achieve higher precision and better surface quality. Cold rolling mills are widely used in steel, aluminum, copper and other fields, especially in the construction, automobile manufacturing, shipbuilding and other industries. In these industries, cold rolling mills not only improve production efficiency, but also ensure product quality and precision.

[0003] However, during the existing roll changing process, the flat head of the working roll shaft needs to be pulled out from the flat head sleeve, and the working roll changing device sags or deflects due to gravity. The clamping block in the working roll changing device of the rolling mill and the clamping groove in the flat head sleeve are easily stuck, and the protrusion of the clamping block and the groove of the flat head sleeve are easily worn, resulting in gaps. Failures are prone to occur during roll changing, and the flat head and wear-resistant lining of the roll shaft are easily worn. Replacing the wear-resistant lining is time-consuming and labor-intensive, resulting in low roll changing efficiency and affecting normal production. Utility Model Content

[0004] The purpose of the utility model is to provide a cold rolling mill working roll changing device to solve the problems proposed in the above background technology that the flat head of the roll shaft of the working roll needs to be pulled out from the flat head sleeve when changing the rolls, the working roll changing device sags or deflects due to gravity, the clamping block in the rolling mill working roll changing device and the clamping groove in the flat head sleeve are easily stuck, the protrusion of the clamping block and the groove of the flat head sleeve are easily worn, resulting in gaps, malfunctions are prone to occur when changing the rolls, the flat head of the roll shaft and the wear-resistant lining are easily worn, the replacement of the wear-resistant lining is time-consuming and labor-intensive, the roll changing efficiency is low, and normal production is affected.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a working roll changing device for a cold rolling mill, comprising a base;

[0006] A cold rolling mill body is provided at the right side of the base, an outer shaft is provided at the right side of the cold rolling mill body, a primary rotating shaft is provided at the middle position on the right side of the outer shaft, and the cold rolling mill is powered by an external power supply;

[0007] A roller changing assembly is provided at the outer side of the primary rotating shaft, a roller changing opening is provided at the left side of the top of the roller changing assembly, and a tightening sleeve is provided at the right side of the roller changing opening.

[0008] Preferably, a tightening thread is provided at the right side of the roller changing port, and the tightening thread corresponds to the tightening sleeve.

[0009] Preferably, a tightening ring is provided at the right end position of the tightening sleeve, a clamping block is provided at the right position of the tightening sleeve, a telescopic hole is provided at the bottom position of the clamping block, and the clamping block is rotatably connected to the telescopic hole.

[0010] Preferably, the clamping thread is threadedly connected to the clamping sleeve, and the clamping block is made of an oblique upward structure.

[0011] Preferably, a connecting piece is provided at the right side of the first-level rotating shaft, a second-level rotating shaft is provided at the right side of the connecting piece, a third-level rotating shaft is provided at the right side of the second-level rotating shaft, a connecting block is provided at the right side of the third-level rotating shaft, and a telescopic plate is provided at the right side of the connecting block.

[0012] Preferably, fixing rings are respectively provided at the left and right sides of the telescopic plate, an inner tube is provided at the middle position inside the telescopic plate, a limiting member is provided at the middle position of the inner tube, a bottom ring is provided at the right end position of the inner tube, a sliding groove is provided in the internal array of the inner tube, a slider is provided at the outer position of the sliding groove, and the slider is slidably connected to the inner tube through the sliding groove.

[0013] Preferably, a clamping piece is provided at the right side of the connecting piece, a pin is provided at the middle position inside the clamping piece, and the clamping piece and the connecting piece are nested and connected through the pin.

[0014] Compared with the prior art, the present invention provides a cold rolling mill work roll changing device, which has the following beneficial effects:

[0015] 1. Through the arrangement of the roll changing mouth, tightening thread, tightening sleeve, tightening ring, clamping block and telescopic hole, the tightening thread on the right side of the roll changing mouth corresponds to the tightening sleeve, which is convenient for the installation and adjustment of the tightening sleeve. The threaded connection between the tightening thread and the tightening sleeve can provide a stable structural support and can be fine-tuned as needed. The tightening ring at the right end of the tightening sleeve further fixes or adjusts the position of the tightening sleeve. The oblique upward structural design of the clamping block can adapt to different working conditions or provide better stability. The telescopic hole at the bottom of the clamping block allows the clamping block to have a certain amount of activity space in the vertical direction, which may help to adapt to different working environments and needs. This design can provide flexibility and stability, so that the equipment can better adapt to different needs and environmental changes during operation.

[0016] 2. Through the arrangement of the connecting piece, secondary rotating shaft, tertiary rotating shaft, connecting block, telescopic plate, fixing ring, inner tube, limiting piece, bottom ring, slide groove and slider, the telescopic plate and slider can slide in the inner tube through the slide groove, so the size or shape of the equipment can be easily adjusted to adapt to different needs. The bottom ring is located at the right end of the inner tube, providing a stable support point for the entire structure and increasing the overall stability. The limiting piece can prevent the inner tube from excessive movement and ensure that it is in the proper position, thereby ensuring the normal operation of the equipment. Various components such as connecting pieces, secondary rotating shaft, tertiary rotating shaft, etc. are independent modules and can be replaced or upgraded as needed, which is convenient for maintenance and expansion. This design allows the equipment to rotate in multiple directions, increasing its application range and flexibility. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural diagram of the present utility model.

[0018] Figure 2 It is a structural schematic diagram of the telescopic plate in the utility model.

[0019] Figure 3 It is a structural schematic diagram of the roller changing assembly in the utility model.

[0020] Figure 4 It is a structural schematic diagram of the slider in the utility model.

[0021] Figure 5 It is a structural diagram of the clamping member in the utility model.

[0022] In the figure: 1. Base; 2. Cold rolling mill body; 3. Outer shaft; 4. Roll changing mouth; 5. Tightening thread; 6. Tightening ring; 7. Bottom ring; 8. Telescopic plate; 9. Tightening sleeve; 10. Roll changing assembly; 11. Secondary rotating shaft; 12. Connecting block; 13. Fixed ring; 14. Tertiary rotating shaft; 15. Primary rotating shaft; 16. Clamping block; 17. Telescopic hole; 18. Inner tube; 19. Limiting piece; 20. Slider; 21. Slide groove; 22. Connecting piece; 23. Pin; 24. Clip. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] The utility model provides Figure 1-5 The working roll changing device of a cold rolling mill shown includes a base 1;

[0025] A cold rolling mill body 2 is provided on the right side of the base 1, an outer shaft 3 is provided on the right side of the cold rolling mill body 2, and a primary rotating shaft 15 is provided in the middle position on the right side of the outer shaft 3. The cold rolling mill is powered by an external power supply.

[0026] A roller changing assembly 10 is provided at an outer position of the primary rotating shaft 15 , a roller changing opening 4 is provided at a top left position of the roller changing assembly 10 , and a tightening sleeve 9 is provided at a right position of the roller changing opening 4 .

[0027] A tightening thread 5 is provided at the right side of the roller changing port 4 , and the tightening thread 5 corresponds to the tightening sleeve 9 .

[0028] A tightening ring 6 is provided at the right end of the tightening sleeve 9 , a clamping block 16 is provided at the right side of the tightening sleeve 9 , a telescopic hole 17 is provided at the bottom of the clamping block 16 , and the clamping block 16 is rotatably connected to the telescopic hole 17 .

[0029] The clamping thread 5 is threadedly connected to the clamping sleeve 9, and the clamping block 16 is made of an oblique upward structure.

[0030] A connecting piece 22 is provided on the right side of the primary rotating shaft 15, a secondary rotating shaft 11 is provided on the right side of the connecting piece 22, a tertiary rotating shaft 14 is provided on the right side of the secondary rotating shaft 11, a connecting block 12 is provided on the right side of the tertiary rotating shaft 14, and a telescopic plate 8 is provided on the right side of the connecting block 12.

[0031] Fixed rings 13 are respectively provided at the left and right sides of the telescopic plate 8, an inner tube 18 is provided at the middle position inside the telescopic plate 8, a limit member 19 is provided at the middle position of the inner tube 18, a bottom ring 7 is provided at the right end position of the inner tube 18, a slide groove 21 is provided in the inner array of the inner tube 18, and a slider 20 is provided at the outer position of the slide groove 21. The slider 20 is slidably connected to the inner tube 18 through the slide groove 21.

[0032] A clamping member 24 is provided at the right side of the connecting member 22 , a pin 23 is provided at the middle position inside the clamping member 24 , and the clamping member 24 and the connecting member 22 are nested and connected through the pin 23 .

[0033] In this embodiment, the specific implementation steps of a cold rolling mill working roll changing device are as follows: first, the outer shaft 3 is used to extend the roll changing assembly 10 forward, and then the tightening sleeve 9 is rotated to tighten the tightening ring 6 so that the clamping block 16 fixes the internal workpiece firmly, and the slider 20 is slid inward to loosen the telescopic plate 8, and then the internal primary rotating shaft 15 is retracted inward, and the pin 23 in the connecting part 22 is taken out to replace the inner rotating shaft to complete the replacement of the working roll.

[0034] like Figure 1 and Figure 3As shown, a tightening thread 5 is provided at the right side of the roll changing mouth 4, the tightening thread 5 corresponds to the tightening sleeve 9, a tightening ring 6 is provided at the right end position of the tightening sleeve 9, a clamping block 16 is provided at the right side of the tightening sleeve 9, a telescopic hole 17 is provided at the bottom position of the clamping block 16, the clamping block 16 is rotatably connected to the telescopic hole 17, the tightening thread 5 is threadedly connected to the tightening sleeve 9, and the clamping block 16 is made of an oblique upward structure.

[0035] Preferably, the corresponding design of the tightening thread 5 and the tightening sleeve 9 can achieve a tighter connection, ensure that the roller is installed in place, and improve the stability and safety of the operation. The tightening ring 6 and the block 16 at the right end of the tightening sleeve 9, and the telescopic hole 17 at the bottom of the block 16 are connected, which can effectively fix the position of the roller and prevent it from moving or shaking during operation, thereby ensuring the stability and accuracy of rolling. The block 16 adopts an oblique upward structural design, which may help provide better mechanical support during installation and adjustment, reduce the workload of operators, and may be beneficial to improving the stability and accuracy of the roller.

[0036] like Figure 1-2 and Figure 4 As shown, a connecting member 22 is provided at the right side of the first-stage rotating shaft 15, a secondary rotating shaft 11 is provided at the right side of the connecting member 22, a tertiary rotating shaft 14 is provided at the right side of the secondary rotating shaft 11, a connecting block 12 is provided at the right side of the tertiary rotating shaft 14, a telescopic plate 8 is provided at the right side of the connecting block 12, and a fixing ring 13 is provided at the left and right sides of the telescopic plate 8 respectively. An inner tube 18 is provided at the middle position inside the telescopic plate 8, a limiting member 19 is provided at the middle position of the inner tube 18, a bottom ring 7 is provided at the right end position of the inner tube 18, a sliding groove 21 is provided in an array inside the inner tube 18, a slider 20 is provided at the outer position of the sliding groove 21, and the slider 20 is slidably connected to the inner tube 18 through the sliding groove 21.

[0037] Preferably, the design of the primary rotating shaft 15, the secondary rotating shaft 11 and the tertiary rotating shaft 14 can effectively transmit force and withstand pressure, thereby improving the stability and reliability of the system. The structural design of the connecting block 12 and the telescopic plate 17 makes the installation and adjustment of the roller more flexible and convenient, and can adapt to rollers of different sizes and types, thereby improving the versatility and applicability of the system. The setting of the fixed ring 13 and the slider 20 can ensure the stability of the telescopic plate 8 during the installation and adjustment process, avoid the inaccurate roller position caused by the movement of the telescopic plate 8, and improve the accuracy and efficiency of roller changing. The design of the inner tube 18 and the slide groove 21 enables the slider 20 to be slidably connected inside the inner tube 18, thereby reducing friction and wear, extending the service life of the equipment, and ensuring the smoothness and reliability of the roller changing process.

[0038] like Figure 4As shown, a clamping member 24 is provided at the right side of the connecting member 22 , a pin 23 is provided at the middle position inside the clamping member 24 , and the clamping member 24 and the connecting member 22 are nested and connected through the pin 23 .

[0039] Optionally, the design of the snap connector 24 allows the connectors 22 to be more securely connected, ensuring the stability and reliability of the system. The pin 23, as a part of the connector, can effectively fix the position between the snap connector 24 and the connector 22 to prevent them from loosening or falling off during operation, thereby ensuring the safety and stability of the system. Through the nested connection of the pin 23, a tight combination between the snap connector 24 and the connector can be achieved, which improves the sealing and stability of the connection and reduces the risk of failure caused by loose connection.

[0040] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A cold rolling mill work roll changing device, comprising a base (1); A cold rolling mill body (2) is provided at the right side of the base (1), an outer shaft (3) is provided at the right side of the cold rolling mill body (2), a primary rotating shaft (15) is provided at the middle position on the right side of the outer shaft (3), and the cold rolling mill is powered by an external power supply; Its characteristics are: A roller changing assembly (10) is provided at the outer side of the primary rotating shaft (15), a roller changing opening (4) is provided at the top left side of the roller changing assembly (10), and a tightening sleeve (9) is provided at the right side of the roller changing opening (4).

2. The cold rolling mill work roll changing device according to claim 1, characterized in that: A tightening thread (5) is provided at the right side of the roller changing port (4), and the tightening thread (5) corresponds to the tightening sleeve (9).

3. The cold rolling mill work roll changing device according to claim 2, characterized in that: A clamping ring (6) is provided at the right end position of the clamping sleeve (9), a clamping block (16) is provided at the right position of the clamping sleeve (9), a telescopic hole (17) is provided at the bottom position of the clamping block (16), and the clamping block (16) is rotatably connected to the telescopic hole (17).

4. The cold rolling mill work roll changing device according to claim 3, characterized in that: The clamping thread (5) is threadedly connected to the clamping sleeve (9), and the clamping block (16) is made of an oblique upward structure.

5. The cold rolling mill work roll changing device according to claim 1, characterized in that: A connecting piece (22) is provided at the right side of the primary rotating shaft (15), a secondary rotating shaft (11) is provided at the right side of the connecting piece (22), a tertiary rotating shaft (14) is provided at the right side of the secondary rotating shaft (11), a connecting block (12) is provided at the right side of the tertiary rotating shaft (14), and a telescopic plate (8) is provided at the right side of the connecting block (12).

6. The cold rolling mill work roll changing device according to claim 5, characterized in that: The telescopic plate (8) is provided with fixing rings (13) at the left and right sides respectively, an inner tube (18) is provided at the middle position inside the telescopic plate (8), a limiting member (19) is provided at the middle position of the inner tube (18), a bottom ring (7) is provided at the right end position of the inner tube (18), a sliding groove (21) is provided in an array inside the inner tube (18), a slider (20) is provided at the outer position of the sliding groove (21), and the slider (20) is slidably connected to the inner tube (18) through the sliding groove (21).

7. The cold rolling mill work roll changing device according to claim 6, characterized in that: A clamping member (24) is provided at the right side of the connecting member (22), a pin (23) is provided at the middle position inside the clamping member (24), and the clamping member (24) and the connecting member (22) are nested and connected via the pin (23).

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