Polishing device for cold-roll steel sheet production

Abstract

The utility model belongs to the technical field of cold-roll steel sheet production, and particularly relates to a polishing device for cold-roll steel sheet production, which comprises a workbench, a sliding groove is arranged on the workbench, a sliding rod is slidably mounted in the sliding groove, and two threaded rods are rotatably mounted in the sliding groove and positioned on one side of the sliding rod. One ends of the two threaded rods penetrate through the sliding rod, the two threaded rods are in threaded connection with the sliding rod, one ends of the two threaded rods are fixedly provided with second bevel gears, and the two second bevel gears are rotationally connected with the sliding groove; the driving assembly is located in the workbench and used for driving the two second bevel gears to rotate at the same time. And the polishing groove is formed in the workbench and located on one side of the sliding groove, two polishing rollers are rotationally installed in the polishing groove, the upper side and the lower side of the cold-roll steel plate can be automatically polished at the same time, meanwhile, chippings generated during polishing all fall into a collecting box to be collected, and the environment is not polluted.

Description

TECHNICAL FIELD

[0001] The utility model belongs to cold rolled steel plate production technical field especially relates to a polishing device for cold rolled steel plate production. BACKGROUND

[0002] Cold rolled steel plate is with hot rolled steel coil as raw material, under normal temperature is rolled and becomes a kind of thin steel plate, it has surface neat, high dimensional accuracy, good mechanical properties, easy processing etc., is widely used in building, automobile, household appliances etc., is the important material indispensable in industrial production.

[0003] For example, the patent number CN218965023U discloses a polishing device for cold rolled steel plate production, belongs to cold rolled steel plate production technical field, it includes the bottom plate, the middle part of the right side surface of bottom plate is installed with support plate, the top of support plate left side surface is installed with the supporting plate, the middle part of supporting plate upper surface is provided with steel plate, the right side of supporting plate upper surface is provided with clamping mechanism, the front and rear sides of bottom plate upper surface are both installed with rack, the front and rear sides of bottom plate upper surface are both installed with limit slide rail. The polishing device for cold rolled steel plate production, through the rotation of transmission shaft driven by double-shaft motor, makes transmission shaft drive transmission gear rotation, transmission gear along rack climbs, transmission gear drives sliding plate to slide along limit slide rail through transmission shaft, sliding plate drives polishing roller to reciprocate, to realize the comprehensive polishing of steel plate, speeds up the polishing speed of steel plate, improves work efficiency.

[0004] The above patent has the following problems:

[0005] The above device can only polish one side of the cold rolled steel plate at a time, and the other side needs to be polished manually, which is complicated and reduces the polishing efficiency. The debris generated during polishing is directly scattered outside, and the debris generated during polishing is scattered everywhere in the workshop, which is not convenient to clean. Therefore, we propose a polishing device for cold rolled steel plate production. Utility model content

[0006] The utility model aims at providing a polishing device for cold rolled steel plate production to solve the problems in the background art.

[0007] Therefore, the utility model provides a polishing device for cold rolled steel plate production, which comprises:

[0008] The workbench is provided with a sliding groove, a sliding rod is slidably arranged in the sliding groove, two threaded rods are rotatably arranged in the sliding groove and located at one side of the sliding rod, one end of each of the two threaded rods penetrates through the sliding rod and is threadedly connected with the sliding rod, a bevel gear II is fixedly arranged at one end of each of the two threaded rods, and the two bevel gears II are rotatably connected with the sliding groove;

[0009] The driving assembly is arranged in the workbench and used for driving the two bevel gears II to rotate simultaneously.

[0010] The polishing groove is arranged in the workbench and located at one side of the sliding groove, two polishing rollers are rotatably arranged in the polishing groove, a sliding plate is symmetrically and slidably arranged in the polishing groove and located at each side of the polishing roller, a fixed rod fixed with the polishing groove is symmetrically and slidably arranged on each of the four sliding plates, a spring is sleeved on each of the eight fixed rods, and a collecting box is insertedly arranged in the polishing groove and located below the polishing roller.

[0011] The power assembly is arranged in the workbench and used for driving the two polishing rollers to oppositely rotate.

[0012] In the technical solution, when the cold-rolled steel plate needs to be polished, the cold-rolled steel plate is first placed in the workbench and located at one side of the sliding rod. The driving assembly is arranged to drive the two bevel gears II to slowly rotate, the two bevel gears II drive the two threaded rods to slowly rotate, the threaded rods drive the sliding rod to slowly slide under the action of the threads, the sliding rod slowly pushes the cold-rolled steel plate to slide, the power assembly is arranged to drive the two polishing rollers to oppositely rotate, then the cold-rolled steel plate enters between the right two sliding plates, the cold-rolled steel plate extrudes the right two sliding plates to slide on the right four fixed rods and move away from each other, meanwhile, the right four springs are extruded and contracted, under the action of the rebound force of the right four springs, the right two sliding plates tightly adhere to the upper and lower sides of the cold-rolled steel plate, then the cold-rolled steel plate enters between the two polishing rollers, the two polishing rollers oppositely rotating can automatically polish the upper and lower sides of the cold-rolled steel plate at the same time, then the cold-rolled steel plate enters between the left two sliding plates, the cold-rolled steel plate extrudes the left two sliding plates to slide on the left four fixed rods and move away from each other, meanwhile, the left four springs are extruded and contracted, under the action of the rebound force of the left four springs, the left two sliding plates tightly adhere to the upper and lower sides of the cold-rolled steel plate, the four sliding plates tightly adhere to the upper and lower sides of the cold-rolled steel plate, which ensures that all the debris generated during polishing is intercepted in the polishing groove and collected, finally, all the debris generated during polishing falls into the collecting box and is collected, after polishing, the staff can clean all the debris generated during polishing by taking out the collecting box, without polluting the environment.

[0013] In the above technical solution, further, the driving assembly comprises:

[0014] The motor one is fixedly installed on the workbench and located at one side of the sliding groove, the output shaft of the motor one extends to the sliding groove through the workbench and is fixedly installed with two bevel gears one, the two bevel gears one are located at the sides of two bevel gears two respectively, and the two bevel gears one are engaged with the two bevel gears two respectively, and the two bevel gears one are rotationally connected with the sliding groove.

[0015] In the technical scheme, the motor one is started, the motor one is powered on and works and drives the two bevel gears one to rotate slowly, the two bevel gears one drive the two bevel gears two engaged with the two bevel gears one to rotate slowly respectively, and the two bevel gears two drive the two threaded rods to rotate slowly respectively, under the action of the threads, the two threaded rods drive the sliding rod to slide slowly to the direction of the motor two, and the sliding rod drives the cold-rolled steel plate to slide slowly to the direction of the motor two.

[0016] In the technical scheme, further, the power assembly comprises:

[0017] The power cavity is arranged in the workbench and located at one side of the polishing roller, one end of the two polishing rollers extends to the power cavity through the polishing groove, the first gear is fixedly installed on one end of the two polishing rollers, the two first gears are engaged, and the two first gears and the two polishing rollers are rotationally connected with the power cavity.

[0018] The motor two is fixedly installed on the workbench and located at one side of the power cavity, and the output shaft of the motor two extends to the power cavity through the workbench and is coaxially connected with one of the first gears.

[0019] In the technical scheme, the motor two is started, the motor two is powered on and works and drives one of the first gears to rotate, the first gear drives the other first gear engaged with the first gear to rotate, and the two first gears drive the two polishing rollers to rotate in opposite directions respectively, so that the upper and lower sides of the cold-rolled steel plate can be polished simultaneously.

[0020] In the technical scheme, further, the output shaft of the motor one is rotationally connected with the workbench and the sliding groove, and the output shaft of the motor two is rotationally connected with the workbench and the power cavity.

[0021] In the technical scheme, the output shaft of the motor one can rotate in the workbench and the sliding groove, and the output shaft of the motor two can rotate in the workbench and the power cavity.

[0022] In the technical scheme, further, a plurality of rotating columns are rotationally installed on the workbench and located at the two sides of the motor two, and the rotating columns are located below the sliding rod.

[0023] In the technical solution, the several rotating columns are arranged to reduce the friction of the cold-rolled steel plate sliding.

[0024] In the technical solution, the two ends of the spring are welded with the inner wall of the polishing groove and the sliding plate respectively.

[0025] In the technical solution, the stability of the several springs during use is ensured.

[0026] In the technical solution, the cross section of the sliding plate is V-shaped.

[0027] In the technical solution, the debris generated during polishing is completely intercepted in the polishing groove and collected.

[0028] The utility model discloses the beneficial effect is:

[0029] 1. The polishing device for cold-rolled steel plate production, when need polishing cold-rolled steel plate, first cold-rolled steel plate is put into the workbench and is located in the one side of sliding rod, through the drive assembly of setting, can drive two bevel gears two slow rotation, two bevel gears two drive two threaded rods slow rotation, under the action of screw thread, two threaded rods drive sliding rod slow sliding, and sliding rod slow sliding pushes cold-rolled steel plate to slide, through the power assembly of setting, can drive two polishing rollers opposite rotation, then cold-rolled steel plate enters between two polishing rollers, and two polishing rollers opposite rotation can automatically polish the upper and lower sides of cold-rolled steel plate simultaneously.

[0030] 2. The polishing device for cold-rolled steel plate production, cold-rolled steel plate enters between right side two sliding plates, and cold-rolled steel plate extrudes right side two sliding plates and slides on right side four fixed rods and is far away from each other respectively, and right side four springs are all extruded and shrink under the rebound force of right side four springs, and right side two sliding plates will be close to the upper and lower sides of cold-rolled steel plate, then cold-rolled steel plate enters between left side two sliding plates, and cold-rolled steel plate extrudes left side two sliding plates and slides on left side four fixed rods and is far away from each other respectively, and left side four springs are all extruded and shrink under the rebound force of left side four springs, and left side two sliding plates will be close to the upper and lower sides of cold-rolled steel plate, and four sliding plates are all close to the upper and lower sides of cold-rolled steel plate, and the debris generated during polishing is completely intercepted in the polishing groove and collected, and finally the debris generated during polishing all falls into the collecting box and is collected, and staff can clean the debris generated during polishing after polishing ends by drawing the collecting box, and environment is not polluted. BRIEF DESCRIPTION OF DRAWINGS

[0031] Figure 1 It is the whole structure schematic diagram of the utility model;

[0032] Figure 2is a working table cross section structure schematic view one of the utility model;

[0033] Figure 3 is a working table cross section structure schematic view two of the utility model;

[0034] Figure 4 is a working table cross section structure schematic view three of the utility model;

[0035] Figure 5 is a working table cross section structure schematic view four of the utility model;

[0036] Figure 6 is a polishing roller area structure schematic view of the utility model.

[0037] The mark in the figure is shown as:

[0038] 1, working table;2, sliding groove;3, sliding rod;4, threaded rod;5, polishing groove;6, polishing roller;7, sliding plate;8, fixed rod;9, spring;10, motor one;11, bevel gear one;12, bevel gear two;13, power cavity;14, first gear;15, motor two;16, rotating column;17, collection box. DETAILED DESCRIPTION

[0039] The technical solutions in the embodiments of the present application will be clearly described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art belong to the scope of protection of the present application.

[0040] In the description of the present application, it should be noted that the terms used herein are only for describing the specific embodiments, and are not intended to limit the exemplary embodiments according to the present application. In order to facilitate the description, the size of each part shown in the drawings is not drawn according to the actual proportional relationship. The technology, method and equipment known to those skilled in the relevant art may not be discussed in detail, but in appropriate cases, the technology, method and equipment should be regarded as part of the authorized specification. In all examples shown and discussed herein, any specific value should be interpreted as merely exemplary, and not as a limitation. Therefore, other examples of exemplary embodiments can have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0041] It should be noted that the terms "first", "second", and the like in the description and in the claims of the present application are used for distinguishing between similar objects and are not necessarily used to describe a particular sequential or chronological order. It is to be understood that the use of the terms so construed can interchange depending on the context in which it is used, and that the embodiments of the present application can be implemented not only in the order described or suggested here, but also in other orders that are different from those described or suggested herein. Also, the objects differentiated by "first", "second", and the like are generally one kind, and the number of the objects is not limited, for example, the first object can be one or more. In addition, "and / or" in the description and claims means at least one of the connected objects, and " / " generally means an "or" relationship between the objects before and after it.

[0042] It should be noted that in the description of the present application, the orientation or position relationship indicated by the orientation terms such as "front, back, up, down, left, right", "horizontal, vertical, perpendicular, horizontal" and "top, bottom" and the like is generally based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, without the opposite indication, these orientation terms do not indicate and imply that the devices or elements referred to must have a particular orientation or be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation on the scope of protection of the present application; The orientation terms "inner" and "outer" refer to the inner and outer of the contour of each component itself.

[0043] It should be noted that in the present application, the terms "include", "contain" or any other variant thereof are intended to cover non-exclusive inclusion, so that the process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or includes elements inherent to such process, method, article or device. Without more limitation, the element defined by the sentence "including a…" does not exclude the presence of other identical elements in the process, method, article or device including the element. In addition, it should be pointed out that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, but can also include performing functions in a substantially simultaneous manner or in the opposite order according to the functions involved, for example, the described method can be performed in an order different from that described, and various steps can also be added, omitted, or combined. In addition, the features described with reference to certain examples can be combined in other examples.

[0044] Embodiment 1:

[0045] Please refer to Figure 1 - Figure 6 As shown in the drawings, the embodiment provides a polishing device for cold-rolled steel plate production, which comprises:

[0046] The workbench 1 is provided with a sliding groove 2, a sliding rod 3 is slidably installed in the sliding groove 2, two threaded rods 4 are rotatably installed in the sliding groove 2 and located at one side of the sliding rod 3, one end of each of the two threaded rods 4 penetrates through the sliding rod 3, and the two threaded rods 4 are threadedly connected with the sliding rod 3, one end of each of the two threaded rods 4 is fixedly installed with a bevel gear two 12, and the two bevel gears two 12 are rotatably connected with the sliding groove 2;

[0047] The driving assembly is located in the workbench 1 and is used to drive the two bevel gears two 12 to rotate at the same time;

[0048] The polishing groove 5 is formed in the workbench 1 and located at one side of the sliding groove 2, two polishing rollers 6 are rotatably installed in the polishing groove 5, two sliding plates 7 are symmetrically and slidably installed in the polishing groove 5 and located at both sides of the polishing rollers 6, four fixed rods 8 are symmetrically and slidably installed on the four sliding plates 7 and fixed with the polishing groove 5, eight springs 9 are sleeved on the eight fixed rods 8, and a collecting box 17 is inserted and installed in the polishing groove 5 and located below the polishing rollers 6;

[0049] The power assembly is located in the workbench 1 and is used to drive the two polishing rollers 6 to rotate in opposite directions.

[0050] When the cold-rolled steel plate needs to be polished, the cold-rolled steel plate is first placed in the workbench 1 and located at one side of the sliding rod 3, the driving assembly is provided, the two bevel gears two 12 are driven to rotate slowly, the two threaded rods 4 are driven to rotate slowly by the two bevel gears two 12 respectively, the sliding rod 3 is driven to slide slowly by the two threaded rods 4 under the action of the threads, the cold-rolled steel plate is driven to slide slowly by the sliding rod 3, the power assembly is provided, the two polishing rollers 6 are driven to rotate in opposite directions, then the cold-rolled steel plate enters between the right two sliding plates 7, the cold-rolled steel plate extrudes the right two sliding plates 7 to slide on the right four fixed rods 8 respectively and move away from each other, at the same time, the right four springs 9 are extruded and contracted, under the action of the rebounding force of the right four springs 9, the right two sliding plates 7 are tightly attached to the upper and lower sides of the cold-rolled steel plate, then the cold-rolled steel plate enters between the two polishing rollers 6, the two polishing rollers 6 rotate in opposite directions to automatically polish the upper and lower sides of the cold-rolled steel plate at the same time, then the cold-rolled steel plate enters between the left two sliding plates 7, the cold-rolled steel plate extrudes the left two sliding plates 7 to slide on the left four fixed rods 8 respectively and move away from each other, at the same time, the left four springs 9 are extruded and contracted, under the action of the rebounding force of the left four springs 9, the left two sliding plates 7 are tightly attached to the upper and lower sides of the cold-rolled steel plate, the four sliding plates 7 are tightly attached to the upper and lower sides of the cold-rolled steel plate, ensuring that all the debris generated during polishing is intercepted in the polishing groove 5 and collected, finally all the debris generated during polishing falls into the collecting box 17 and is collected, after polishing, the staff can extract the collecting box 17 to clean all the debris generated during polishing, without polluting the environment.

[0051] In this embodiment, the driving assembly comprises:

[0052] The motor one 10 is fixedly installed on the workbench 1 and located at one side of the sliding groove 2. The output shaft of the motor one 10 extends through the workbench 1 into the sliding groove 2 and is fixedly installed with two bevel gears one 11. The two bevel gears one 11 are located at one side of two bevel gears two 12 respectively, and the two bevel gears one 11 are engaged with the two bevel gears two 12 respectively. The two bevel gears one 11 are rotationally connected with the sliding groove 2.

[0053] Wherein, the motor one 10 is started, the motor one 10 is powered on and works and drives the two bevel gears one 11 to rotate slowly. The two bevel gears one 11 drive the two bevel gears two 12 engaged with them to rotate slowly respectively. The two bevel gears two 12 drive the two threaded rods 4 to rotate slowly respectively. Under the action of the thread, the two threaded rods 4 drive the sliding rod 3 to slide slowly towards the direction of the motor two 15. The sliding rod 3 slowly pushes the cold-rolled steel plate to slide towards the direction of the motor two 15.

[0054] In this embodiment, the power assembly comprises:

[0055] The power cavity 13 is opened in the workbench 1 and located at one side of the polishing roller 6. One end of the two polishing rollers 6 extends through the polishing groove 5 and extends into the power cavity 13. One end of the two polishing rollers 6 is fixedly installed with the first gear 14. The two first gears 14 are engaged. The two first gears 14 and the two polishing rollers 6 are rotationally connected with the power cavity 13.

[0056] The motor two 15 is fixedly installed on the workbench 1 and located at one side of the power cavity 13. The output shaft of the motor two 15 extends through the workbench 1 into the power cavity 13 and is coaxially connected with one of the first gears 14.

[0057] Wherein, the motor two 15 is started. The motor two 15 is powered on and works and drives one of the first gears 14 to rotate. One of the first gears 14 drives the other first gear 14 engaged with it to rotate. The two first gears 14 drive the two polishing rollers 6 to rotate in opposite directions respectively. The two polishing rollers 6 rotating in opposite directions can automatically polish the upper and lower sides of the cold-rolled steel plate at the same time.

[0058] Embodiment 2:

[0059] The embodiment provides a polishing device for cold-rolled steel plate production. In addition to the technical solutions of the above-mentioned embodiments, the polishing device has the following technical features.

[0060] In this embodiment, the output shaft of the motor one 10 is rotationally connected with the workbench 1 and the sliding groove 2. The output shaft of the motor two 15 is rotationally connected with the workbench 1 and the power cavity 13.

[0061] Wherein, ensure that the output shaft of the motor 10 can rotate in the workbench 1 and the sliding groove 2, ensure that the output shaft of the motor 15 can rotate in the workbench 1 and the power cavity 13.

[0062] Embodiment 3:

[0063] The embodiment provides a polishing device for cold-rolled steel plate production, in addition to comprising the technical scheme of the above embodiment, further having the following technical features.

[0064] In the embodiment, a plurality of rotating columns 16 are rotatably installed on the workbench 1 and located on both sides of the motor 15, and the plurality of rotating columns 16 are located below the sliding rod 3.

[0065] Wherein, through the setting of the plurality of rotating columns 16, the friction of the cold-rolled steel plate sliding is reduced.

[0066] Embodiment 4:

[0067] The embodiment provides a polishing device for cold-rolled steel plate production, in addition to comprising the technical scheme of the above embodiment, further having the following technical features.

[0068] In the embodiment, the two ends of the spring 9 are respectively welded with the inner wall of the polishing groove 5 and the sliding plate 7.

[0069] Wherein, the stability of the plurality of springs 9 during use is ensured.

[0070] Embodiment 5:

[0071] The embodiment provides a polishing device for cold-rolled steel plate production, in addition to comprising the technical scheme of the above embodiment, further having the following technical features.

[0072] In the embodiment, the cross section of the sliding plate 7 is V-shaped.

[0073] It is worth noting that: when polishing the cold-rolled steel plate, the two polishing rollers 6 can drive the cold-rolled steel plate to displace in the direction of the sliding rod 3, so that the cold-rolled steel plate is always in close contact with the sliding rod 3, and the cold-rolled steel plate is polished uniformly.

[0074] Wherein, ensure that the debris generated during polishing is all intercepted in the polishing groove 5 and collected.

[0075] Working principle: when need to polish cold-rolled steel plate, first put cold-rolled steel plate into the workbench 1 and located in the one side of the sliding rod 3, then start motor 10, motor 10 is electrified and work and drive two bevel gear 11 rotate slowly, two bevel gear 11 drive two bevel gear 12 meshed with it rotate slowly respectively, two bevel gear 12 drive two threaded rods 4 rotate slowly, under the action of screw thread, two threaded rods 4 drive sliding rod 3 slide slowly to the direction of motor 15, sliding rod 3 push cold-rolled steel plate to the direction of motor 15, at the same time, start motor 15, motor 15 is electrified and work and drive one of the first gear 14 rotate, one of the first gear 14 drive another first gear 14 meshed with it rotate, two first gear 14 drive two polishing rollers 6 rotate in opposite directions respectively, then cold-rolled steel plate will enter between the right two sliding plates 7, cold-rolled steel plate extrude right two sliding plates 7 slide on right four fixed rods 8 respectively and far away from each other, at the same time, right four springs 9 are extruded and shrink, under the action of rebound force of right four springs 9, right two sliding plates 7 will tightly adhere to the upper and lower sides of cold-rolled steel plate, then cold-rolled steel plate enters between two polishing rollers 6, two polishing rollers 6 rotate in opposite directions can automatically polish the upper and lower sides of cold-rolled steel plate at the same time, then cold-rolled steel plate will enter between left two sliding plates 7, cold-rolled steel plate extrude left two sliding plates 7 slide on left four fixed rods 8 respectively and far away from each other, at the same time, left four springs 9 are extruded and shrink, under the action of rebound force of left four springs 9, left two sliding plates 7 will tightly adhere to the upper and lower sides of cold-rolled steel plate, four sliding plates 7 all tightly adhere to the upper and lower sides of cold-rolled steel plate, ensure that the debris generated during polishing is all intercepted in polishing groove 5 and collected, finally, the debris generated during polishing all fall into collecting box 17 and collected, after polishing, staff can pull out collecting box 17 to clean the debris generated during polishing, without polluting the environment.

[0076] The embodiments of the present application are described above in conjunction with the drawings, the embodiments and the features in the embodiments in the present application can be combined with each other without conflict, the present application is not limited to the above specific embodiments, the above specific embodiments are only illustrative, not restrictive, the person skilled in the art can make many forms without departing from the purpose of the present application and the scope protected by the claims under the inspiration of the present application, all belong to the protection of the present application.

Claims

1. A polishing device for cold-rolled steel sheet production, characterized by, Include: Workbench (1), the workbench (1) is provided with a sliding slot (2), the sliding slot (2) is slidably installed with a sliding rod (3), the sliding slot (2) is rotatably installed with two threaded rods (4) on the side of the sliding rod (3), one end of the two threaded rods (4) penetrates the sliding rod (3), and the two threaded rods (4) are threadedly connected with the sliding rod (3), one end of the two threaded rods (4) is fixedly installed with a bevel gear (12), the two bevel gears (12) are rotatably connected with the sliding slot (2); Drive assembly, the drive assembly is located in the workbench (1), and is used for driving two bevel gears (12) to rotate simultaneously; Polishing tank (5), the polishing tank (5) is provided in the workbench (1) and located on one side of the sliding slot (2), the polishing tank (5) is rotatably installed with two polishing rollers (6), the polishing tank (5) is slidably installed with two polishing rollers (6) symmetrically on both sides of the polishing tank (5), four sliding plates (7) are symmetrically slidably installed on the four sliding plates (7), and the polishing tank (5) is fixedly installed with a fixed rod (8) on the polishing tank (5), eight spring (9) is sleeved on the eight fixed rod (8), the polishing tank (5) is inserted and installed with a collecting box (17) below the polishing roller (6); Power assembly, the power assembly is located in the workbench (1), and is used for driving two polishing rollers (6) to rotate in opposite directions.

2. A polishing device for cold-rolled steel sheet production according to claim 1, characterized in that, The drive assembly comprises: Motor one (10), the motor one (10) is fixedly installed on the workbench (1) and located on one side of the sliding slot (2), the output shaft of the motor one (10) extends to the sliding slot (2) through the workbench (1) and is fixedly installed with two bevel gears (11), two bevel gears (11) are located on one side of two bevel gears (12), and two bevel gears (11) are engaged with two bevel gears (12), two bevel gears (11) are rotatably connected with the sliding slot (2).

3. A polishing device for cold-rolled steel sheet production according to claim 2, characterized in that, The power assembly comprises: Power cavity (13), the power cavity (13) is provided in the workbench (1) and located on one side of the polishing roller (6), two polishing rollers (6) are inserted into the power cavity (13) through the polishing tank (5), two polishing rollers (6) are rotatably connected with the power cavity (13), two first gears (14) are rotatably connected with the power cavity (13); Motor two (15), the motor two (15) is fixedly installed on the workbench (1) and located on one side of the power cavity (13), the output shaft of the motor two (15) extends to the power cavity (13) through the workbench (1) and is coaxially connected with one of the first gears (14).

4. A polishing device for cold-rolled steel sheet production according to claim 3, characterized in that, The output shaft of the motor one (10) is rotatably connected with the workbench (1) and the sliding slot (2), and the output shaft of the motor two (15) is rotatably connected with the workbench (1) and the power cavity (13).

5. A polishing device for cold-rolled steel sheet production according to claim 3, characterized in that, A plurality of rotating columns (16) are rotatably installed on the workbench (1) and on both sides of the second motor (15), and the rotating columns (16) are all below the sliding rod (3).

6. A polishing device for cold-rolled steel sheet production according to claim 1, characterized in that, Both ends of the spring (9) are welded with the inner wall of the polishing groove (5) and the sliding plate (7) respectively.

7. A polishing device for cold-rolled steel sheet production according to claim 1, characterized in that, The cross section of the sliding plate (7) is V-shaped.

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