Feeding device and slitting machine

Abstract

The utility model discloses a feeding device and a slitting machine, and belongs to the technical field of steel belt processing, the feeding device comprises a feeding roller used for conveying a steel belt; the spraying assemblies comprise the first spraying assembly and the second spraying assembly, the first spraying assembly and the second spraying assembly are arranged above the upper surface and below the lower surface of the steel belt in a one-to-one correspondence mode, and the first spraying assembly and the second spraying assembly are used for conducting spraying operation on the upper surface and the lower surface of the steel belt in a one-to-one correspondence mode; the scraping assembly is located behind the spraying assembly and comprises a first scraping piece and a second scraping piece, the first scraping piece is used for being attached to the upper surface of the steel belt to scrape off impurities on the upper surface of the steel belt, and the second scraping piece is used for being attached to the lower surface of the steel belt to scrape off impurities on the lower surface of the steel belt. And dust and impurities which are easily attached to the surface of the steel belt during feeding and transferring of the steel belt are washed and cleaned, so that the subsequent slitting quality is prevented from being influenced.

Description

Technical Field

[0001] The utility model relates to the technical field of steel strip processing, in particular to a feeding device. In addition, the utility model also relates to a slitting machine comprising the feeding device. Background Art

[0002] In the process of using steel coils as raw materials to produce parts such as rotors and stators of various motors, it is necessary to slit the unwound steel strips. Usually, a slitting machine is used to slit the steel strips. The slitting machine is also called a slitting line or a slitting machine, which is used to cut metal coils into metal strips of required width. For example, a Chinese patent with publication number CN 116329638 A discloses an automatic slitting processing method for slitting and edge collection of steel coils, which has the function of synchronously rewinding the edge materials on both sides of the steel coil after slitting, and can improve the effect and efficiency of edge collection.

[0003] However, in the use of the slitting machines in the prior art, it is found that before the steel strip is cut, since the steel strip has been exposed to the air environment for a period of time during the process of transferring materials, dust and impurities are easily attached to the surface of the steel strip, affecting the quality of cutting and slitting. Some impurities not only affect the subsequent cutting operations, but also have strong adsorption properties. Under the influence of the high temperature generated by the high-speed rotation of the cutting tools and the friction between the steel strip, it is easy to affect the cutting mouth, resulting in the quality of the final slitting product being affected. Utility Model Content

[0004] One purpose of the utility model is to provide a feeding device to solve the problem in the prior art that dust and impurities are easily attached to the surface of the steel strip during the feeding and transportation of the steel strip, thus affecting the quality of the subsequent stripping.

[0005] Another object of the utility model is to provide a slitting machine including the above-mentioned feeding device.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0007] A feeding device, comprising:

[0008] Feed roller, which is used to convey the steel strip;

[0009] A spray assembly, the spray assembly includes a first spray assembly and a second spray assembly, the first spray assembly and the second spray assembly are arranged one-to-one above the upper surface and below the lower surface of the steel strip, and the first spray assembly and the second spray assembly are used to spray the upper surface and the lower surface of the steel strip one-to-one;

[0010] The scraper assembly is located behind the spray assembly and includes a first scraper and a second scraper. The first scraper is used to fit the upper surface of the steel strip to scrape off impurities on the upper surface of the steel strip, and the second scraper is used to fit the lower surface of the steel strip to scrape off impurities on the lower surface of the steel strip.

[0011] In one or more embodiments of the feeding device, the scraper assembly also includes a first rotating assembly, a second rotating assembly, a first transmission assembly and a second transmission assembly. The first rotating assembly is used to drive the first scraper member to reciprocate and intermittently fit the upper surface of the steel belt. The first rotating assembly is connected to the first spray assembly through the first transmission assembly. The first rotating assembly is also used to drive the first spray assembly to reciprocate through the first transmission assembly; the second rotating assembly is used to drive the second scraper member to reciprocate and intermittently fit the lower surface of the steel belt. The second rotating assembly is connected to the second spray assembly through the second transmission assembly. The first rotating assembly is also used to drive the second spray assembly to reciprocate through the second transmission assembly.

[0012] In one or more embodiments of the feeding device, the first transmission assembly and the second transmission assembly both include a push rod, a rocker arm and a rotating member, the front and rear ends of the rocker arm are hinged to the push rod and the rotating member one by one, the first spray assembly is limited forward and backward along the steel strip feeding direction by the first limit frame on both sides, and the second spray assembly is limited forward and backward along the steel strip feeding direction by the second limit frame on both sides; the rotating member of the first transmission assembly is connected to the first rotating assembly, and the push rod of the first transmission assembly is hinged to the first spray assembly; the rotating member of the second transmission assembly is connected to the second rotating assembly, and the push rod of the second transmission assembly is hinged to the second spray assembly.

[0013] In one or more embodiments of the feeding device, the first rotating component includes a first turntable, the second rotating component includes a second turntable, the second turntable is connected to the first motor, the first motor is used to drive the second turntable to rotate, the first turntable and the outer ring of the second turntable are engaged through the tooth surface, the second turntable is used to drive the first turntable to rotate, the first turntable is connected to the first scraper member through the first connecting component, and the second turntable is connected to the second scraper member through the second connecting component.

[0014] In one or more embodiments of the feeding device, the first connecting component and the second connecting component both include a rotating shaft, a connecting rod and a first compression spring connected in sequence, the rotating shafts of the first connecting component and the second connecting component are both supported by a support rod, the rotating shaft of the first connecting component is connected to the first main shaft of the first turntable, and the first compression spring of the first connecting component is connected to the first scraper; the rotating shaft of the second connecting component is connected to the second main shaft of the second turntable, and the first compression spring of the second connecting component is connected to the second scraper.

[0015] In one or more embodiments of the feeding device, the first spray assembly is limited forward and backward along the steel strip feeding direction by a first limit frame on both sides, and the second spray assembly is limited forward and backward along the steel strip feeding direction by a second limit frame on both sides.

[0016] In one or more embodiments of the feeding device, the first spray assembly includes a first spray water tank and a first nozzle, the first nozzle is arranged on the first spray water tank, the first end of the first spray water tank is provided with a first limit member, the first limit member is passed through the first limit frame on one side, the second end of the first spray water tank is connected to a first water pipe, the first water pipe passes through the first limit frame on the other side and is connected to an external water source; the second spray assembly includes a second spray water tank and a second nozzle, the second nozzle is arranged on the second spray water tank, the first end of the second spray water tank is provided with a second limit member, the second limit member is passed through the second limit frame on one side, the second end of the second spray water tank is connected to the second water pipe, the second water pipe passes through the second limit frame on the other side and is connected to an external water source.

[0017] In one or more embodiments of the feeding device, the first limit frame and the second limit frame are both hollow frame structures, and hollow strip-shaped limit holes are provided on the first limit frame and the second limit frame, and the first limit frame and the second limit frame are both supported and installed by limit brackets.

[0018] In one or more embodiments of the feeding device, the first nozzle and the second nozzle are both inclined toward the feeding direction of the steel strip.

[0019] According to another aspect of the utility model, a slitting machine is also provided, which includes the above-mentioned feeding device.

[0020] The utility model has the following beneficial effects:

[0021] The utility model uses the first spray assembly and the second spray assembly of the spray assembly to spray the upper surface and the lower surface of the steel strip respectively, so as to achieve the flushing of the upper and lower surfaces of the steel strip. At the same time, a scraper assembly is arranged at the rear end of the spray assembly, and the first scraper member and the second scraper member of the scraper assembly are respectively attached to the upper surface and the lower surface of the steel strip, and can scrape and clean the upper and lower surfaces of the steel strip at the same time, so that the upper and lower surfaces of the steel strip are in a relatively clean state when cutting, thereby ensuring the quality of the cut and stripped products, and avoiding the impurities attached to the surface of the steel strip from affecting the cutting blade, thereby improving the service life of the cutting blade. At the same time, the surface of the steel strip is cleaned by spraying, and the sprayed clean water can also play a cooling effect on the steel strip, so that the steel strip is less likely to deform during feeding and cutting, further reducing the bending and curling of the products after stripping, which is conducive to ensuring the quality of the stripped products.

[0022] The slitting machine of the utility model also has the above-mentioned beneficial effects.

[0023] Of course, any product implementing the present invention does not necessarily need to achieve all the advantages described above at the same time. In addition to the purposes, features and advantages described above, the present invention also has other purposes, features and advantages. The present invention will be further described in detail with reference to the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The drawings constituting a part of this application are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0025] Figure 1 It is a schematic diagram of the overall structure of a preferred embodiment of the utility model;

[0026] Figure 2 It is a structural schematic diagram of a transmission assembly of a preferred embodiment of the utility model.

[0027] Figure 3 It is a schematic diagram of the installation of the first scraper member of the preferred embodiment of the utility model.

[0028] Legend: 1. Limit bracket; 2. Steel belt; 3. Feed roller; 4. First spray assembly; 5. Second spray assembly; 6. First limit frame; 7. Second limit frame; 8. First limit member; 9. Second limit member; 10. Hinge; 11. First turntable; 12. Second turntable; 13. First motor; 14. First scraper; 15. Push rod; 16. Rocker arm; 17. Rotating member; 18. Spray head assembly; 19. Support rod; 20. Rotating shaft; 21. Connecting rod; 22. First compression spring. DETAILED DESCRIPTION

[0029] The embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. However, the present invention can be implemented in a variety of different ways as defined and covered below.

[0030] Please refer to the attached drawings, which is a structural schematic diagram of a preferred embodiment of a feeding device and a slitting machine provided by the utility model.

[0031] A feeding device, comprising:

[0032] A feed roller 3, the feed roller 3 is used to convey the steel strip 2;

[0033] A spray assembly, the spray assembly includes a first spray assembly 4 and a second spray assembly 5, the first spray assembly 4 and the second spray assembly 5 are arranged one-to-one above the upper surface and below the lower surface of the steel strip 2, and the first spray assembly 4 and the second spray assembly 5 are used to spray the upper surface and the lower surface of the steel strip 2 one-to-one;

[0034] The scraper assembly is located behind the spray assembly, and the scraper assembly includes a first scraper member 14 and a second scraper member. The first scraper member 14 is used to fit the upper surface of the steel strip 2 to scrape off impurities on the upper surface of the steel strip 2, and the second scraper member is used to fit the lower surface of the steel strip 2 to scrape off impurities on the lower surface of the steel strip 2.

[0035] It should be noted that a protective cover is also provided on the outside of the feeding device, and the protective cover is used to shield and protect the spraying component and the scraping component, and further reduce dust and impurities in the air from falling onto the surface of the steel strip 2.

[0036] The utility model uses the first spray assembly 4 and the second spray assembly 5 of the spray assembly to spray the upper surface and the lower surface of the steel strip 2 respectively, so as to achieve the flushing of the upper and lower surfaces of the steel strip 2. At the same time, a scraper assembly is arranged at the rear end of the spray assembly. The first scraper member 14 and the second scraper member of the scraper assembly are respectively attached to the upper surface and the lower surface of the steel strip 2, and can scrape and clean the upper and lower surfaces of the steel strip 2 at the same time, so that the upper and lower surfaces of the steel strip 2 are in a relatively clean state when cutting, ensuring the quality of the cut and stripped products, and avoiding the impurities attached to the surface of the steel strip 2 from affecting the cutting blade, thereby improving the service life of the cutting blade. At the same time, the surface of the steel strip 2 is cleaned by spraying, and the sprayed clean water can also play a cooling effect on the steel strip 2, so that the steel strip 2 is less likely to deform during feeding and cutting, further reducing the phenomenon of bending and curling of the products after stripping, which is conducive to ensuring the quality of the stripped products.

[0037] Preferably, please refer to Figure 1 , 2 As shown in Figures 3 and 4, the scraper assembly also includes a first rotating assembly, a second rotating assembly, a first transmission assembly and a second transmission assembly. The first rotating assembly is used to drive the first scraper member 14 to reciprocate and intermittently fit the upper surface of the steel belt 2. The first rotating assembly is connected to the first spray assembly 4 through the first transmission assembly. The first rotating assembly is also used to drive the first spray assembly 4 to reciprocate through the first transmission assembly; the second rotating assembly is used to drive the second scraper member to reciprocate and intermittently fit the lower surface of the steel belt 2. The second rotating assembly is connected to the second spray assembly 5 through the second transmission assembly. The first rotating assembly is also used to drive the second spray assembly 5 to reciprocate through the second transmission assembly.

[0038] It is understandable that the first rotating assembly can drive the first scraper 14 to reciprocate and intermittently fit the upper surface of the steel strip 2, so that when the steel strip 2 is fed, the first scraper 14 intermittently scrapes the upper surface of the steel strip 2 section by section, thereby cleaning the upper surface of the steel strip 2. Moreover, the first scraper 14 intermittently contacts the upper surface of the steel strip 2, which can minimize the impact on the feeding and transmission of the steel strip 2. The second scraper also has the same effect.

[0039] At the same time, the first rotating assembly can also drive the first spray assembly 4 to move back and forth through the first transmission assembly, so as to achieve a reciprocating flushing operation on the upper surface of the steel strip 2, and have a better spray flushing effect. The second spray assembly 5 also has the same effect. Therefore, the first rotating assembly has multiple effects, which can not only drive the first scraper 14 to rotate back and forth, but also drive the first spray assembly 4 to move back and forth. The second rotating assembly also has the same multiple effects.

[0040] Optionally, the bottom surfaces of the first scraper 14 and the second scraper are both provided with brushes, sponges or towels to improve the cleaning capabilities of the first scraper 14 and the second scraper.

[0041] Preferably, please refer to Figure 1 , 2 As shown in Figures 3 and 4, the first transmission assembly and the second transmission assembly both include a push rod 15, a rocker arm 16 and a rotating member 17, the front and rear ends of the rocker arm 16 are hinged to the push rod 15 and the rotating member 17 one by one, the first spray assembly 4 is limited forward and backward along the feeding direction of the steel strip 2 by the first limit frame 6 on both sides, and the second spray assembly 5 is limited forward and backward along the feeding direction of the steel strip 2 by the second limit frame 7 on both sides; the rotating member 17 of the first transmission assembly is connected to the first rotating assembly, and the push rod 15 of the first transmission assembly is hinged to the first spray assembly 4; the rotating member 17 of the second transmission assembly is connected to the second rotating assembly, and the push rod 15 of the second transmission assembly is hinged to the second spray assembly 5.

[0042] It can be understood that both the first transmission assembly and the second transmission assembly adopt the principle of the rocker transmission mechanism. Taking the first transmission assembly as an example, the rotating member 17 is driven by the first rotating assembly to rotate, the rotating member 17 is hinged to the first end of the rocker 16, the second end of the rocker 16 is hinged to the push rod 15 through the hinge 10, the hinge 10 can be a rotating shaft or a torsion spring, the push rod 15 is hinged to the first spray assembly 4, and the first spray assembly 4 is horizontally limited by the first limit frame 6, so that the rotating member 17 drives the rocker 16 to swing back and forth when rotating, and then drives the push rod 15 to reciprocate and push the first spray assembly 4 to move back and forth along the feeding direction of the steel strip 2 through the rocker 16, so as to realize the reciprocating cycle spraying operation of the first spray assembly 4. The second transmission assembly drives the second spray assembly 5 to reciprocate and spray in the same way. In this way, the spraying and flushing effect on the surface of the steel strip 2 is improved, and the degree of cleaning is improved.

[0043] Preferably, please refer to Figure 1 , 2 As shown in Figure 3, the first rotating component includes a first turntable 11, and the second rotating component includes a second turntable 12. The second turntable 12 is connected to a first motor 13. The first motor 13 is used to drive the second turntable 12 to rotate. The first turntable 11 and the outer ring of the second turntable 12 are meshed through tooth surfaces. The second turntable 12 is used to drive the first turntable 11 to rotate. The first turntable 11 is connected to the first scraper 14 through a first connecting component, and the second turntable 12 is connected to the second scraper through a second connecting component.

[0044] It can be understood that the first motor 13 drives the second turntable 12 to rotate, the second turntable 12 drives the first turntable 11 to rotate, the first turntable 11 is connected to the first spray component 4 through the first transmission component, and the second turntable 12 is connected to the second spray component 5 through the second transmission component, thereby realizing the movement of the first rotating component, the second rotating component, the first spray component 4 and the second spray component 5 driven by the first motor 13, achieving the effect of simplifying the structure and greatly saving energy consumption, and effectively reducing the overall cost of the device.

[0045] Optionally, the first motor 13 is connected to the second turntable 12 via a pulley assembly, or the output shaft of the first motor 13 is connected to the second main shaft of the second turntable 12, both of which can achieve the effect of the first motor 13 directly driving the second turntable 12 and reduce the installation space occupied by the motor drive mechanism.

[0046] Preferably, please refer to Figure 1 , 2As shown in Figures 3, the first connecting assembly and the second connecting assembly both include a rotating shaft 20, a connecting rod 21 and a first compression spring 22 which are connected in sequence. The rotating shafts 20 of the first connecting assembly and the second connecting assembly are both supported by a support rod 19. The rotating shaft 20 of the first connecting assembly is connected to the first main shaft of the first turntable 11, and the first compression spring 22 of the first connecting assembly is connected to the first scraper 14; the rotating shaft 20 of the second connecting assembly is connected to the second main shaft of the second turntable 12, and the first compression spring 22 of the second connecting assembly is connected to the second scraper.

[0047] It can be understood that the first connection assembly and the second connection assembly can respectively drive the first scraper 14 and the second scraper to intermittently fit with the steel belt 2. Taking the first connection assembly as an example, the support rod 19 is used to support the first turntable 11, the first turntable 11 drives the rotating shaft 20 to rotate, and the rotating shaft 20 drives the connecting rod 21, the first compression spring 22 and the first scraper 14 to rotate. Each time the first scraper 14 rotates, it fits and contacts with the upper surface of the steel belt 2 once to perform a scraping and cleaning operation, wherein the first compression spring 22 can also play a buffering role for the first scraper 14, so that the first scraper 14 is not easy to produce hard collisions when contacting the surface of the steel belt 2, reducing the impact on the feeding and transmission of the steel belt 2. The second connection assembly has the same effect.

[0048] Preferably, please refer to Figure 1 , 2 As shown in 3, both sides of the first spray assembly 4 are limited forward and backward along the feeding direction of the steel strip 2 by the first limit frame 6, and both sides of the second spray assembly 5 are limited forward and backward along the feeding direction of the steel strip 2 by the second limit frame 7.

[0049] In one embodiment, the first spray assembly 4 includes a first spray water tank and a first nozzle, the first nozzle is arranged on the first spray water tank, a first limit member 8 is provided at the first end of the first spray water tank, the first limit member 8 is passed through the first limit frame 6 on one side, the second end of the first spray water tank is connected to a first water pipe, the first water pipe passes through the first limit frame 6 on the other side and is connected to an external water source; the second spray assembly 5 includes a second spray water tank and a second nozzle, the second nozzle is arranged on the second spray water tank, a second limit member 9 is provided at the first end of the second spray water tank, the second limit member 9 is passed through the second limit frame 7 on one side, the second end of the second spray water tank is connected to a second water pipe, the second water pipe passes through the second limit frame 7 on the other side and is connected to an external water source.

[0050] It can be understood that the first spray assembly 4 and the second spray assembly 5 are respectively limited in the horizontal direction by the first limit frame 6 and the second limit frame 7. Taking the first spray assembly 4 as an example, the first end of the first spray water tank is penetrated by the first limit frame 6 through the first limit member 8, and the second end of the first spray water tank passes through the first limit frame 6 through the first water pipe, so that the first limit frame 6 limits the two ends of the first spray water tank, and the first limit member 8 is hinged with the push rod 15 of the first transmission assembly, that is, the first transmission assembly finally drives the first spray water tank to reciprocate. The second spray assembly 5 can also realize reciprocating movement in the same way, so as to expand the spraying area and repeatedly rinse the surface of the steel belt 2 to improve the flushing effect.

[0051] Preferably, please refer to Figure 1 , 2 As shown in FIGS. 3 and 4 , the first limiting frame 6 and the second limiting frame 7 are both hollow frame structures, and hollow strip limiting holes are provided on the first limiting frame 6 and the second limiting frame 7. The first limiting frame 6 and the second limiting frame 7 are both supported and installed by the limiting bracket 1.

[0052] It can be understood that the length direction of the hollow strip limiting holes on the first limiting frame 6 and the second limiting frame 7 is parallel to the feeding direction of the steel strip 2, thereby realizing the horizontal limitation of the first spray component 4 and the second spray component 5, and improving the stability of the translational movement of the first spray component 4 and the second spray component 5.

[0053] Optionally, the first limiter 8 and the second limiter 9 adopt a cylindrical structure to reduce friction. The first limit frame 6 and the second limit frame 7 are both installed and fixed by the limit bracket 1, which can achieve centralized installation, a more streamlined structure, and small space occupation.

[0054] Preferably, please refer to Figure 1 , 2 As shown in FIG. 3 , the first nozzle and the second nozzle are both inclined toward the feeding direction of the steel strip 2 .

[0055] It can be understood that the spray assembly also includes a spray head assembly 18, which includes a first spray head and a second spray head. The first spray head and the second spray head are both inclined toward the feeding direction of the steel strip 2, so that the sprayed clean water has an angle with the surface of the steel strip 2, which can more easily rinse and remove impurities on the surface of the steel strip 2.

[0056] According to another aspect of the utility model, a slitting machine is also provided, which includes the above-mentioned feeding device.

[0057] The slitting machine of the utility model also has the above-mentioned beneficial effects, including washing and cleaning the dust and impurities that are easily attached to the surface of the steel strip 2 when the steel strip 2 is fed and transported, so as to avoid affecting the quality of subsequent slitting.

[0058] It should be noted that, in this article, the terms "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or apparatus.

[0059] This article uses specific examples to illustrate the principles and implementation methods of the utility model. The above examples are only used to help understand the method and core ideas of the utility model. The above is only the preferred implementation method of the utility model. It should be pointed out that due to the limitations of textual expression and the objective existence of infinite specific structures, ordinary technicians in this technical field can make several improvements, modifications or changes without departing from the principles of the utility model, and can also combine the above technical features in an appropriate manner; these improvements, modifications, changes or combinations, or the direct application of the concept and technical solution of the utility model to other occasions without improvement, should be regarded as the protection of the utility model.

Claims

1. A feeding device, characterized in that: include: A feed roller (3), the feed roller (3) is used to convey the steel strip (2); A spray assembly, the spray assembly comprising a first spray assembly (4) and a second spray assembly (5), the first spray assembly (4) and the second spray assembly (5) being arranged one-to-one above the upper surface and below the lower surface of the steel strip (2), and the first spray assembly (4) and the second spray assembly (5) being used to perform a spray operation on the upper surface and the lower surface of the steel strip (2) one-to-one; The scraper assembly is located behind the spray assembly, and comprises a first scraper member (14) and a second scraper member, wherein the first scraper member (14) is used to fit the upper surface of the steel strip (2) to scrape off impurities on the upper surface of the steel strip (2), and the second scraper member is used to fit the lower surface of the steel strip (2) to scrape off impurities on the lower surface of the steel strip (2).

2. A feeding device according to claim 1, characterized in that: The scraper assembly also includes a first rotating assembly, a second rotating assembly, a first transmission assembly and a second transmission assembly. The first rotating assembly is used to drive the first scraper member (14) to reciprocate and intermittently fit the upper surface of the steel belt (2). The first rotating assembly is connected to the first spray assembly (4) through the first transmission assembly. The first rotating assembly is also used to drive the first spray assembly (4) to reciprocate through the first transmission assembly. The second rotating assembly is used to drive the second scraper member to reciprocate and intermittently fit the lower surface of the steel belt (2). The second rotating assembly is connected to the second spray assembly (5) through the second transmission assembly. The first rotating assembly is also used to drive the second spray assembly (5) to reciprocate through the second transmission assembly.

3. A feeding device according to claim 2, characterized in that: The first transmission assembly and the second transmission assembly both comprise a push rod (15), a swing rod (16) and a rotating member (17); the front and rear ends of the swing rod (16) are hinged to the push rod (15) and the rotating member (17) in a one-to-one correspondence; both sides of the first spray assembly (4) are limited forward and backward along the feeding direction of the steel strip (2) by a first limiting frame (6); both sides of the second spray assembly (5) are limited forward and backward along the feeding direction of the steel strip (2) by a second limiting frame (7); the rotating member (17) of the first transmission assembly is connected to the first rotating assembly, and the push rod (15) of the first transmission assembly is hinged to the first spray assembly (4); the rotating member (17) of the second transmission assembly is connected to the second rotating assembly, and the push rod (15) of the second transmission assembly is hinged to the second spray assembly (5).

4. A feeding device according to claim 2, characterized in that: The first rotating assembly comprises a first rotating disk (11), and the second rotating assembly comprises a second rotating disk (12). The second rotating disk (12) is connected to a first motor (13). The first motor (13) is used to drive the second rotating disk (12) to rotate. The outer rings of the first rotating disk (11) and the second rotating disk (12) are meshed through tooth surfaces. The second rotating disk (12) is used to drive the first rotating disk (11) to rotate. The first rotating disk (11) is connected to a first scraper (14) through a first connecting assembly, and the second rotating disk (12) is connected to a second scraper through a second connecting assembly.

5. A feeding device according to claim 4, characterized in that: The first connecting assembly and the second connecting assembly both comprise a rotating shaft (20), a connecting rod (21) and a first compression spring (22) which are connected in sequence. The rotating shafts (20) of the first connecting assembly and the second connecting assembly are both supported by a supporting rod (19). The rotating shaft (20) of the first connecting assembly is connected to the first main shaft of the first rotating disk (11), and the first compression spring (22) of the first connecting assembly is connected to the first scraper (14); the rotating shaft (20) of the second connecting assembly is connected to the second main shaft of the second rotating disk (12), and the first compression spring (22) of the second connecting assembly is connected to the second scraper.

6. A feeding device according to claim 1, characterized in that: The first spray assembly (4) is limited forward and backward along the feeding direction of the steel strip (2) by first limit frames (6) on both sides, and the second spray assembly (5) is limited forward and backward along the feeding direction of the steel strip (2) by second limit frames (7) on both sides.

7. A feeding device according to claim 6, characterized in that: The first spray assembly (4) comprises a first spray water tank and a first spray head, the first spray head is arranged on the first spray water tank, a first limiter (8) is arranged at the first end of the first spray water tank, the first limiter (8) is inserted into a first limiter frame (6) on one side, the second end of the first spray water tank is connected to a first water pipe, the first water pipe passes through the first limiter frame (6) on the other side and then is connected to an external water source; the second spray assembly (5) comprises a second spray water tank and a second spray head, the second spray head is arranged on the second spray water tank, a second limiter (9) is arranged at the first end of the second spray water tank, the second limiter (9) is inserted into a second limiter frame (7) on one side, the second end of the second spray water tank is connected to a second water pipe, the second water pipe passes through the second limiter frame (7) on the other side and then is connected to an external water source.

8. A feeding device according to claim 7, characterized in that: The first limiting frame (6) and the second limiting frame (7) are both hollow frame structures, and hollow strip-shaped limiting holes are provided on the first limiting frame (6) and the second limiting frame (7). The first limiting frame (6) and the second limiting frame (7) are both supported and installed by the limiting bracket (1).

9. A feeding device according to claim 7, characterized in that: The first nozzle and the second nozzle are both inclined towards the feeding direction of the steel strip (2).

10. A slitting machine, characterized in that: Comprising a feeding device as described in any one of claims 1-9.

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