Grinding machine for steel belt

Abstract

The utility model discloses a grinding machine for a steel belt. The grinding machine comprises a rack, an abrasive belt, a driving device, an abutting device, a spraying device and a lifting device. A driving device is arranged at the top of the rack, the outer side of the driving device is sleeved with an abrasive belt, the rack is provided with an abutting device below the abrasive belt, a gap between the abutting device and the driving device is a moving space of a steel belt, the rack is provided with a lifting device below the abutting device, and the movable end of the lifting device is fixedly connected with the bottom of the abutting device. The lifting device is used for adjusting the height of the pressing device; a spraying device is arranged on the outer side of the abrasive belt on the rack, a plurality of nozzles of the spraying device face the abrasive belt, and the spraying device is used for washing the abrasive belt and the steel belt. Through mutual cooperation of the abrasive belt, the driving device, the abutting device, the spraying device and the lifting device, the problems that a traditional grinding machine is low in automation degree and poor in steel belt grinding effect are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of sanding machines, in particular to a sanding machine for steel strips. Background Art

[0002] Traditional steel belt sanders have long dominated industrial automation, a field not yet fully embraced. However, these machines often rely on manual operation to complete the grinding process. This method is not only time-consuming and labor-intensive, but also makes it difficult to maintain consistent and stable grinding speeds. Due to the limitations of manual operation, uneven grinding, over- or under-grinding, and other issues can easily occur during the grinding process, reducing production efficiency and increasing costs.

[0003] Furthermore, traditional steel belt sanders have significant shortcomings in grinding accuracy and surface quality. Due to the inherent precision limitations of the equipment and manual errors, scratches and uneven surfaces often appear on the surface of the steel belt after grinding, seriously affecting the overall quality of the steel belt and subsequent processing results. Furthermore, the heat and abrasive debris generated during the grinding process can easily damage the steel belt, further reducing its service life and performance. Utility Model Content

[0004] In view of the above defects, the present invention proposes a sanding machine for steel belts, which solves the problems of low automation and poor steel belt grinding effect of traditional sanding machines through the mutual cooperation of sanding belts, driving devices, pressing devices, spraying devices and lifting devices.

[0005] To achieve this purpose, the present invention adopts the following technical solutions:

[0006] A sanding machine for steel strips, comprising a frame, a sanding belt, a driving device, a pressing device, a spraying device and a lifting device;

[0007] The top of the frame is provided with a driving device, the outer side of the driving device is provided with the sanding belt, the frame is provided with the pressing device below the sanding belt, the gap between the pressing device and the driving device is the movable space of the steel belt, the frame is provided with the lifting device below the pressing device, the movable end of the lifting device is fixedly connected to the bottom of the pressing device, and the lifting device is used to adjust the height of the pressing device;

[0008] The frame is provided with the spraying device on the outer side of the sand belt, and the multiple nozzles of the spraying device are directed toward the sand belt. The spraying device is used for flushing the sand belt and the steel belt.

[0009] The spray device includes a spray main pipe and a spray branch pipe, the spray main pipe is installed on the frame, and multiple spray branches are respectively connected to the spray main pipe. The frame is provided with the spray branch pipes at the top and bottom of the sanding belt, and the spray branch pipes are provided with multiple nozzles side by side on one side of the sanding belt.

[0010] The length direction of the spray branch pipe is the front-to-back direction.

[0011] The pressing device includes a mounting frame, a pressing active roller and a pressing auxiliary roller, the mounting frame is slidably connected to the frame, the two pressing auxiliary rollers are rotatably mounted side by side on the bottom of the mounting frame, the pressing active roller is rotatably mounted on the top of the mounting frame, the pressing active roller is located between the two pressing auxiliary rollers, the pressing active roller and the two pressing auxiliary rollers form a triangular structure, and the gap between the pressing active roller and the abrasive belt is the movable space of the steel belt;

[0012] The length directions of the mounting frame, the pressing active roller and the pressing auxiliary roller are all front-to-back directions.

[0013] The driving device includes a driving active roller, a driving auxiliary roller, a driving swing roller, an adjustment component and a driving member;

[0014] The driving active roller is rotatably mounted on the frame, the driving auxiliary roller is rotatably mounted on the frame, the driving active roller and the driving auxiliary roller are arranged side by side, the driving swing roller is rotatably mounted above the frame and the driving active roller, the driving active roller, the driving auxiliary roller and the driving swing roller form a triangular structure, and the sanding belt is movably sleeved on the outer sides of the driving active roller, the driving auxiliary roller and the driving swing roller;

[0015] The driving member is mounted on the frame, and the driving end of the driving member is fixedly connected to the driving active roller;

[0016] The adjustment component is installed on the frame, and the adjustment component is located between the driving active roller and the driving swing roller, and the adjustment component is used to adjust the height of the driving swing roller;

[0017] The longitudinal directions of the driving active roller, the driving auxiliary roller and the driving swing roller are all front-to-back directions.

[0018] The adjustment assembly includes an adjustment frame, an adjustment power member and an adjustment spring, wherein the adjustment frame is slidably connected to the frame, the mounting end of the adjustment power member is located on the frame, the driving end of the adjustment power member is fixedly connected to the bottom of the adjustment frame, the adjustment spring is sleeved on the driving end of the adjustment power member, one end of the adjustment spring is connected to the mounting end of the adjustment power member, and the other end of the adjustment spring is connected to the adjustment frame;

[0019] The driving swing roller is rotatably mounted on the adjustment frame.

[0020] The lifting device includes a lifting drive member, a lifting rocker arm, an eccentric roller, a lifting platform and a connecting rod. The eccentric roller is rotatably mounted on the frame. The mounting end of the lifting drive member is mounted on the frame. The driving end of the lifting drive member is hinged to the top of the lifting rocker arm. The bottom of the lifting rocker arm is fixedly connected to the end of the eccentric roller. The lifting platform is installed at both ends of the eccentric roller. The top of the lifting platform is fixedly connected to the bottom of the mounting frame.

[0021] The connecting rod horizontally connects the two lifting platforms; the length directions of the connecting rod and the eccentric roller are both front-to-back directions.

[0022] The lifting platform is provided with a hoist and a lifting rod, the hoist is fixedly connected to the lifting rod, the top of the lifting rod is fixedly connected to the mounting frame, and the hoist is used to drive the lifting rod to move up and down.

[0023] The frame is also rotatably mounted with two working rollers, which are respectively located on both sides of the abrasive belt;

[0024] The length direction of the working roll is the front-to-back direction.

[0025] The technical solution of the utility model may have the following beneficial effects:

[0026] 1. In order to ensure the grinding effect of the steel belt, a spray device is installed on the frame. Multiple nozzles of the spray device are facing the sanding belt, which can not only reduce the temperature of the sanding belt and the steel belt to prevent overheating damage, but also wash away the debris generated by grinding in time to avoid the debris from having an adverse effect on the grinding effect, thereby enhancing the grinding effect.

[0027] 2. The two auxiliary pressure rollers are located at the bottom of the mounting frame, providing auxiliary support and stability. The active pressure roller is located between the two auxiliary pressure rollers, forming a triangular structure with the active pressure roller and the two auxiliary pressure rollers. This provides a more balanced pressure distribution, ensuring that the steel strip does not shake or deflect during the grinding process, thereby improving the grinding accuracy and stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a schematic diagram of a sanding machine according to one embodiment of the present invention;

[0029] Figure 2 This is a schematic diagram of a driving device according to one embodiment of the present invention. Figure 1 ;

[0030] Figure 3This is a schematic diagram of a driving device according to one embodiment of the present invention. Figure 2 ;

[0031] Figure 4 This is a schematic diagram of a spray device according to one embodiment of the present invention;

[0032] Figure 5 This is a schematic diagram of a spray device according to one embodiment of the present invention;

[0033] Among them, 1. Frame; 2. Abrasive belt; 3. Driving device; 31. Driving active roller; 32. Driving auxiliary roller; 33. Driving swing roller; 34. Adjusting assembly; 341. Adjusting frame; 342. Adjusting power part; 343. Adjusting spring; 35. Driving part; 4. Pressing device; 41. Mounting frame; 42. Pressing active roller; 43. Pressing auxiliary roller; 5. Spraying device; 51. Spray head; 52. Spraying main pipe; 53. Spraying branch pipe; 6. Lifting device; 61. Lifting driving part; 62. Lifting rocker; 63. Eccentric roller; 64. Lifting platform; 65. Connecting rod; 66. Hoist; 67. Lifting rod; 7. Working roller. DETAILED DESCRIPTION

[0034] The technical solution of the present invention will be further described below with reference to the accompanying drawings and through specific implementation methods.

[0035] In the description of the present invention, it should be understood that the terms "length", "middle", "upper", "lower", "left", "right", "top", "bottom", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0036] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of this utility model, unless otherwise specified, "plurality" means more than two.

[0037] In the description of this utility model, it should be noted that, unless otherwise specified or limited, the terms "installation," "splicing," and "connection" should be understood in a broad sense. For example, they may refer to fixed connection, detachable connection, or integral connection; they may refer to direct connection, indirect connection through an intermediate medium, or internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0038] The following combination Figures 1 to 5 , describing a sanding machine for steel strips according to an embodiment of the present utility model.

[0039] A sanding machine for steel strips, comprising a frame 1, a sanding belt 2, a driving device 3, a pressing device 4, a spraying device 5 and a lifting device 6;

[0040] The top of the frame 1 is provided with a driving device 3, and the outer side of the driving device 3 is provided with the sanding belt 2. The frame 1 is provided with the pressing device 4 below the sanding belt 2. The gap between the pressing device 4 and the driving device 3 is the movable space of the steel belt. The frame 1 is provided with the lifting device 6 below the pressing device 4. The movable end of the lifting device 6 is fixedly connected to the bottom of the pressing device 4. The lifting device 6 is used to adjust the height of the pressing device 4.

[0041] The frame 1 is provided with the spray device 5 on the outside of the sanding belt 2 . The multiple nozzles 51 of the spray device 5 are directed toward the sanding belt 2 . The spray device 5 is used to flush the sanding belt 2 and the steel belt.

[0042] The abrasive belt 2 is movably mounted on the drive device 3, which enables the drive device 3 to drive the abrasive belt 2 at high speed, effectively grinding the steel belt and quickly removing impurities and oxide layers on the steel belt surface, making the steel belt surface smoother and flatter. Furthermore, the pressing device 4 is located below the abrasive belt 2. At this time, the pressing device 4 cooperates with the drive device 3 to stably fix the steel belt, ensuring that the steel belt does not shift during the grinding process, thereby improving the grinding accuracy.

[0043] In order to ensure the grinding effect of the steel belt, a spray device 5 is provided on the frame 1. The multiple nozzles 51 of the spray device 5 are directed towards the sanding belt 2, which can not only reduce the temperature of the sanding belt 2 and the steel belt to prevent overheating damage, but also can promptly wash away the debris generated by grinding to avoid the debris from having an adverse effect on the grinding effect, thereby enhancing the grinding effect.

[0044] In addition, the lifting device 6 can flexibly adjust the height of the pressing device 4 according to the different thicknesses of the steel belts, so that the sander can adapt to steel belts of various specifications, further improving the accuracy and consistency of sanding.

[0045] Therefore, the sanding machine in this solution solves the problems of low automation and poor steel belt grinding effect of traditional sanding machines through the mutual cooperation of the sanding belt 2, the driving device 3, the pressing device 4, the spraying device 5 and the lifting device 6.

[0046] The spray device 5 includes a spray main pipe 52 and a spray branch pipe 53. The spray main pipe 52 is installed on the frame 1. The multiple spray branch pipes 53 are respectively connected to the spray main pipe 52. The frame 1 is provided with the spray branch pipes 53 at the top and bottom of the sanding belt 2. The spray branch pipes 53 are provided with multiple nozzles 51 side by side on one side of the sanding belt 2.

[0047] The length direction of the spray branch pipe 53 is the front-to-back direction.

[0048] The frame 1 is equipped with spray branches 53 at both the top and bottom of the abrasive belt 2, which can fully flush the abrasive belt 2 and the steel strip from both the top and the bottom. The lower spray branch 53 promptly flushes away small sand particles generated by grinding the stainless steel surface, effectively preventing these particles from causing scratches or dents. This ensures that the stainless steel maintains a smooth and even surface after grinding, significantly improving the grinding effect and quality.

[0049] The upper spray branch 53 flushes away small sand particles adhering to the surface of the abrasive belt 2, preventing them from re-impacting the steel strip surface as the abrasive belt 2 rotates at high speed, further ensuring the integrity and smoothness of the steel strip surface during the grinding process. Therefore, the synergistic effect of the upper and lower spray pipes makes the grinding process smoother, prevents the accumulation of debris between the abrasive belt 2 and the steel strip, reduces pauses and adjustment time caused by sand particles, and provides strong support for continuous production.

[0050] Simultaneous flushing from top to bottom can also more effectively reduce the temperature of the sanding belt 2 and the steel belt, prevent local overheating, and extend the service life of the equipment.

[0051] Moreover, a plurality of nozzles 51 are arranged side by side on the side of the spray branch pipe 53 facing the sanding belt 2, so that the spraying is more uniform, which can ensure that all parts of the sanding belt 2 and the steel belt can be fully flushed and cooled, avoiding the surface quality difference of the steel belt caused by insufficient local cooling or incomplete flushing.

[0052] The pressing device 4 includes a mounting frame 41, a pressing active roller 42 and a pressing auxiliary roller 43. The mounting frame 41 is slidably connected to the frame 1. The two pressing auxiliary rollers 43 are rotatably mounted side by side on the bottom of the mounting frame 41. The pressing active roller 42 is rotatably mounted on the top of the mounting frame 41. The pressing active roller 42 is located between the two pressing auxiliary rollers 43. The pressing active roller 42 and the two pressing auxiliary rollers 43 form a triangular structure. The gap between the pressing active roller 42 and the abrasive belt 2 is the movable space of the steel belt.

[0053] The length directions of the mounting frame 41 , the pressing active roller 42 and the pressing auxiliary roller 43 are all front-to-back directions.

[0054] Two auxiliary pressure rollers 43 are located at the bottom of the mounting frame 41, providing auxiliary support and stability. The active pressure roller 42 is located between the two auxiliary pressure rollers 43, forming a triangular structure with the active pressure roller 42 and the two auxiliary pressure rollers 43. This provides a more balanced pressure distribution, ensuring that the steel strip does not wobble or shift during the grinding process, thereby improving grinding accuracy and stability.

[0055] The mounting frame 41, the active pressing roller 42, and the auxiliary pressing roller 43 are all arranged in a front-to-back direction, which is consistent with the direction of movement of the steel strip, making the structure of the entire pressing device 4 more compact and reasonable. This layout not only saves space, but also facilitates cooperation with other devices, thereby improving the overall performance of the sanding machine.

[0056] Moreover, the mounting frame 41 is slidably connected to the frame 1, so that the pressing device 4 can be flexibly adjusted according to the thickness and size of different steel strips, and has a wider range of adaptability.

[0057] The driving device 3 includes a driving active roller 31, a driving auxiliary roller 32, a driving swing roller 33, an adjustment component 34 and a driving member 35;

[0058] The driving active roller 31 is rotatably mounted on the frame 1, and the driving auxiliary roller 32 is rotatably mounted on the frame 1. The driving active roller 31 and the driving auxiliary roller 32 are arranged side by side. The driving swing roller 33 is rotatably mounted above the frame 1 and the driving active roller 31. The driving active roller 31, the driving auxiliary roller 32 and the driving swing roller 33 form a triangular structure. The abrasive belt 2 is movably sleeved on the outside of the driving active roller 31, the driving auxiliary roller 32 and the driving swing roller 33.

[0059] The driving member 35 is mounted on the frame 1 , and the driving end of the driving member 35 is fixedly connected to the driving active roller 31 ;

[0060] The adjustment component 34 is installed on the frame 1 and is located between the driving active roller 31 and the driving swing roller 33. The adjustment component 34 is used to adjust the height of the driving swing roller 33.

[0061] The longitudinal directions of the driving active roller 31 , the driving auxiliary roller 32 , and the driving swing roller 33 are all front-to-back directions.

[0062] The driving member 35 drives the driving roller 31 to rotate, and the driving roller 31 can drive the abrasive belt 2, the driving auxiliary roller 32, and the driving swing roller 33 to rotate, thereby allowing the abrasive belt 2 to rotate stably and at high speed on the frame 1. At the same time, the driving roller 31 and the driving auxiliary roller 32 are arranged side by side, sharing the pressure of the abrasive belt 2, reducing the wear of the driving roller 31, and extending the service life of the equipment.

[0063] Furthermore, the triangular structure of the driving active roller 31, the driving auxiliary roller 32, and the driving oscillating roller 33 provides stable support and tension for the abrasive belt 2. This structural layout ensures that the abrasive belt 2 maintains good stability during high-speed operation, preventing problems such as slack and deviation, thereby ensuring uniform grinding of the steel belt.

[0064] It is worth noting that the adjustment component 34 is located between the driving active roller 31 and the driving swing roller 33. It can flexibly adjust the height of the driving swing roller 33 according to different grinding requirements and the condition of the sanding belt 2 to change the tension of the sanding belt 2, adapt to the grinding of steel belts of different thicknesses, and improve the versatility and adaptability of the equipment.

[0065] The adjustment assembly 34 includes an adjustment frame 341, an adjustment power member 342, and an adjustment spring 343. The adjustment frame 341 is slidably connected to the frame 1. The mounting end of the adjustment power member 342 is located on the frame 1. The driving end of the adjustment power member 342 is fixedly connected to the bottom of the adjustment frame 341. The adjustment spring 343 is sleeved on the driving end of the adjustment power member 342. One end of the adjustment spring 343 is connected to the mounting end of the adjustment power member 342, and the other end of the adjustment spring 343 is connected to the adjustment frame 341.

[0066] The driving swing roller 33 is rotatably mounted on the adjustment frame 341 .

[0067] The adjustment frame 341 is slidably connected to the frame 1, providing a stable guide for the height adjustment of the driving swing roller 33, making the adjustment process more precise, and being able to accurately control the tension of the abrasive belt 2 to ensure the accuracy and quality of steel belt grinding.

[0068] The adjustment member 342 provides a stable driving force, enabling rapid adjustment of the height of the drive oscillating roller 33. An adjustment spring 343, mounted on the drive end of the adjustment member 342, acts as an elastic buffer. During the grinding process, when the abrasive belt 2 is subjected to varying degrees of pressure or impact, the adjustment spring 343 absorbs some of the energy, minimizing damage to the adjustment member 342 and other components.

[0069] Adjusting the elasticity of the spring 343 can also enable the driving swing roller 33 to automatically adapt to the tension change of the sanding belt 2 within a certain range, maintain the sanding belt 2 in a stable tension state, and improve the stability and reliability of the equipment.

[0070] The design of adjustment assembly 34 allows the sander to flexibly adapt to different steel belt specifications and different grinding requirements. By adjusting the synergistic effect of power element 342 and adjustment spring 343, the height of the drive oscillating roller 33 can be quickly adjusted, thereby changing the tension of the sanding belt 2 to meet the grinding requirements of steel belts of varying thickness and hardness.

[0071] The lifting device 6 includes a lifting drive member 61, a lifting rocker 62, an eccentric roller 63, a lifting platform 64 and a connecting rod 65. The eccentric roller 63 is rotatably mounted on the frame 1. The mounting end of the lifting drive member 61 is mounted on the frame 1. The driving end of the lifting drive member 61 is hinged to the top of the lifting rocker 62. The bottom of the lifting rocker 62 is fixedly connected to the end of the eccentric roller 63. The lifting platform 64 is installed at both ends of the eccentric roller 63. The top of the lifting platform 64 is fixedly connected to the bottom of the mounting frame 41.

[0072] The connecting rod 65 horizontally connects the two lifting platforms 64 ; the length directions of the connecting rod 65 and the eccentric roller 63 are both front-to-back directions.

[0073] The lifting drive 61 is connected to the eccentric roller 63 via a lifting rocker 62, precisely controlling the rotation angle of the eccentric roller 63, thereby enabling precise adjustment of the height of the mounting frame 41. This design allows for accurate adjustment of the gap between the pressing device 4 and the driving device 3 for steel strips of varying thicknesses, ensuring the optimal position of the steel strip during grinding and improving grinding accuracy.

[0074] The rotation of the eccentric roller 63 can achieve continuous height adjustment, which can meet the needs of different steel strip thickness changes and has high flexibility and adaptability.

[0075] The two lifting platforms 64 are connected by a connecting rod 65 to form a stable support structure, which can ensure the stability of the mounting frame 41 during the lifting process. This structure can effectively prevent the mounting frame 41 from shaking or tilting, ensure that the pressing device 4 has a stable pressing force on the steel strip, and improve the grinding quality.

[0076] The lifting platform 64 is provided with a hoist 66 and a lifting rod 67 . The hoist 66 is fixedly connected to the lifting rod 67 . The top of the lifting rod 67 is fixedly connected to the mounting frame 41 . The hoist 66 is used to drive the lifting rod 67 to move up and down.

[0077] If the front and rear ends of mounting frame 41 are at different heights, the combination of hoists 66 and lifting rods 67 provides additional power and precision control for height adjustment of mounting frame 41. Depending on the actual condition of mounting frame 41, one of hoists 66 is adjusted individually, which drives lifting rods 67 upward, thereby aligning the front and rear ends of mounting frame 41. This maintains uniform pressure from pressing device 4 on the steel strip, avoids uneven grinding or steel strip damage caused by unstable factors, and improves the stability and reliability of the equipment.

[0078] The frame 1 is also rotatably mounted with two working rollers 7, which are respectively located on both sides of the abrasive belt 2;

[0079] The length direction of the working roll 7 is the front-back direction.

[0080] The two working rollers 7 are located on either side of the abrasive belt 2, providing good support and guidance for the abrasive belt 2. When the abrasive belt 2 rotates at high speed for grinding, the working rollers 7 prevent the abrasive belt 2 from deflecting or twisting, ensuring that the abrasive belt 2 always remains in the correct position, thereby improving grinding stability and accuracy.

[0081] The length setting in the front-to-back direction enables the working roller 7 to better cooperate with the driving device 3 to jointly maintain the stable operation of the sanding belt 2 and reduce the grinding quality problems caused by the instability of the sanding belt 2.

[0082] The working roller 7 can make the contact between the abrasive belt 2 and the steel belt more uniform, increase the uniformity of the grinding pressure distribution of the abrasive belt 2 on the steel belt, avoid local over- or under-grinding on the surface of the steel belt, and improve the grinding quality and smoothness of the steel belt surface.

[0083] The technical principles of the present invention have been described above with reference to specific embodiments. These descriptions are intended solely to illustrate the principles of the present invention and should not be construed in any way as limiting the scope of protection of the present invention. Based on the explanations herein, those skilled in the art will be able to devise other specific implementations of the present invention without inventive effort, and such implementations will fall within the scope of protection of the present invention.

Claims

1. A sanding machine for steel strip, characterized in that: It includes a frame, abrasive belt, a driving device, a pressing device, a spraying device and a lifting device; The top of the frame is provided with a driving device, the outer side of the driving device is provided with the sanding belt, the frame is provided with the pressing device below the sanding belt, the gap between the pressing device and the driving device is the movable space of the steel belt, the frame is provided with the lifting device below the pressing device, the movable end of the lifting device is fixedly connected to the bottom of the pressing device, and the lifting device is used to adjust the height of the pressing device; The frame is provided with the spraying device on the outer side of the sand belt, and the multiple nozzles of the spraying device are directed toward the sand belt. The spraying device is used for flushing the sand belt and the steel belt.

2. A steel strip grinding machine according to claim 1, characterized in that: The spray device includes a spray main pipe and a spray branch pipe, the spray main pipe is installed on the frame, and multiple spray branches are respectively connected to the spray main pipe. The frame is provided with the spray branch pipes at the top and bottom of the sanding belt, and the spray branch pipes are provided with multiple nozzles side by side on one side of the sanding belt. The length direction of the spray branch pipe is the front-to-back direction.

3. The grinding machine for steel strip according to claim 1, characterized in that: The pressing device includes a mounting frame, a pressing active roller and a pressing auxiliary roller, the mounting frame is slidably connected to the frame, the two pressing auxiliary rollers are rotatably mounted side by side on the bottom of the mounting frame, the pressing active roller is rotatably mounted on the top of the mounting frame, the pressing active roller is located between the two pressing auxiliary rollers, the pressing active roller and the two pressing auxiliary rollers form a triangular structure, and the gap between the pressing active roller and the abrasive belt is the movable space of the steel belt; The length directions of the mounting frame, the pressing active roller and the pressing auxiliary roller are all front-to-back directions.

4. The grinding machine for steel strip according to claim 1, characterized in that: The driving device includes a driving active roller, a driving auxiliary roller, a driving swing roller, an adjustment component and a driving member; The driving active roller is rotatably mounted on the frame, the driving auxiliary roller is rotatably mounted on the frame, the driving active roller and the driving auxiliary roller are arranged side by side, the driving swing roller is rotatably mounted above the frame and the driving active roller, the driving active roller, the driving auxiliary roller and the driving swing roller form a triangular structure, and the sanding belt is movably sleeved on the outer sides of the driving active roller, the driving auxiliary roller and the driving swing roller; The driving member is mounted on the frame, and the driving end of the driving member is fixedly connected to the driving active roller; The adjustment component is installed on the frame, and the adjustment component is located between the driving active roller and the driving swing roller, and the adjustment component is used to adjust the height of the driving swing roller; The longitudinal directions of the driving active roller, the driving auxiliary roller and the driving swing roller are all front-to-back directions.

5. A steel strip grinding machine according to claim 4, characterized in that: The adjustment assembly includes an adjustment frame, an adjustment power member and an adjustment spring, wherein the adjustment frame is slidably connected to the frame, the mounting end of the adjustment power member is located on the frame, the driving end of the adjustment power member is fixedly connected to the bottom of the adjustment frame, the adjustment spring is sleeved on the driving end of the adjustment power member, one end of the adjustment spring is connected to the mounting end of the adjustment power member, and the other end of the adjustment spring is connected to the adjustment frame; The driving swing roller is rotatably mounted on the adjustment frame.

6. The grinding machine for steel strip according to claim 3, characterized in that: The lifting device includes a lifting drive member, a lifting rocker arm, an eccentric roller, a lifting platform and a connecting rod. The eccentric roller is rotatably mounted on the frame. The mounting end of the lifting drive member is mounted on the frame. The driving end of the lifting drive member is hinged to the top of the lifting rocker arm. The bottom of the lifting rocker arm is fixedly connected to the end of the eccentric roller. The lifting platform is installed at both ends of the eccentric roller. The top of the lifting platform is fixedly connected to the bottom of the mounting frame. The connecting rod horizontally connects the two lifting platforms; the length directions of the connecting rod and the eccentric roller are both front-to-back directions.

7. A steel strip grinding machine according to claim 6, characterized in that: The lifting platform is provided with a hoist and a lifting rod, the hoist is fixedly connected to the lifting rod, the top of the lifting rod is fixedly connected to the mounting frame, and the hoist is used to drive the lifting rod to move up and down.

8. The grinding machine for steel strip according to claim 1, characterized in that: The frame is also rotatably mounted with two working rollers, which are respectively located on both sides of the abrasive belt; The length direction of the working roll is the front-to-back direction.

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