Steel strip trimming device for stainless steel strip cold rolling

Abstract

The invention relates to the technical field of steel strip trimming, and discloses a steel strip trimming device for stainless steel strip cold rolling, which comprises a workbench and an adaptive base plate. When a steel belt with the conventional thickness is treated, the two guide rollers work cooperatively, waste materials and the steel belt are guided stably, the waste materials are conveyed out through the limiting rollers, the steel belt enters the follow-up process smoothly, and efficient and stable conventional production is ensured; when a thick steel belt is cut, an overturning motor is started to enable the two guide rollers to rotate, the first guide roller jacks the steel belt to move upwards to an inclined friction plate on the side wall of the cutting piece, burrs are fully polished, and the pressing rollers are synchronously limited to guarantee uniform polishing; the second guide roller presses the waste downwards and forms opposite acting force with the first guide roller to generate shearing force, cutting resistance is reduced in cooperation with the cutting blade, the cutting efficiency is improved, the polished steel belt and the waste are guided by the second guide roller to enter a workbench water tank to be cleaned, chippings, impurities and metal particles are effectively removed, and it is guaranteed that the steel belt is clean. The influence of waste residues on subsequent treatment is avoided.

Description

Technical Field

[0001] The invention belongs to the technical field of steel strip trimming, and in particular relates to a steel strip trimming device for cold rolling of stainless steel strips. Background Art

[0002] In the field of stainless steel strip cold rolling, steel strip trimming devices are key equipment for ensuring product quality and production efficiency. Most existing steel strip trimming devices for stainless steel strip cold rolling can effectively meet the trimming requirements of conventional thickness (especially thinner) steel strips. Through the coordination of cutting components and guide structures, they can achieve stable cutting and edge processing of thin steel strips, to a certain extent ensuring production continuity and product appearance quality.

[0003] However, as industrial applications continue to demand higher performance from stainless steel strips, the use of thicker gauge stainless steel strips is becoming increasingly widespread. When using traditional trimming devices to cut thicker steel strips, due to their high hardness and toughness, numerous burrs easily appear on the cut surface during the cutting process. This process also generates a large amount of debris, which not only adheres to the surface of the steel strip, making it difficult to clean, but also requires a greater cutting depth, resulting in slower cutting speeds and significantly reduced production efficiency.

[0004] In view of this, the present invention is proposed. Summary of the Invention

[0005] In order to solve the above technical problems, the basic concept of the technical solution adopted by the present invention is:

[0006] A steel strip edge trimming device for cold-rolling stainless steel strips comprises a workbench and a matching base plate.

[0007] A conveying roller for conveying the steel strip is installed on the base plate, and a pair of top plates for guiding the position of the steel strip are provided on the conveying roller;

[0008] A round roller for supporting the steel strip is rotatably mounted on the base plate;

[0009] A cutting blade is installed on the base plate vertically corresponding to the circular roller, and a friction plate is installed on the inner side wall of the cutting blade, and the surface of the friction plate is in an inclined state;

[0010] The base plate is provided with a first guide roller and a second guide roller that rotate synchronously. The first guide roller is used to guide the cut steel strip to slide onto the friction plate for grinding, and the second guide roller is used to guide the ground steel strip and waste to move to a water tank installed on the surface of the workbench for cleaning. The second guide roller is also used to guide the cut waste to move downward, and cooperate with the upward moving steel strip to generate a shear force at the cutting position.

[0011] The workbench is also equipped with a limiting roller for adjusting the tension of the scrap strip after cutting.

[0012] As a preferred embodiment of the present invention, four supporting legs are installed at the bottom of the workbench, and reinforcing ribs are installed on adjacent supporting legs. The heights of adjacent reinforcing ribs are different, which are used to reduce excessive local stress. A base is installed at the bottom of the substrate, and the base is in a boss shape. The base and the workbench are connected by bolts.

[0013] As a preferred embodiment of the present invention, positioning plates are installed at both ends of the circular roller, and the diameter of the positioning plates is larger than the diameter of the circular roller, and a transmission shaft is installed at the rotation center of the positioning plate, the transmission shaft movably passes through the base, and a drive motor is installed at the end of the transmission shaft, and the drive motor housing is installed on the base plate. A cutting slot is opened on the circular roller, and the cutting slot vertically corresponds to the cutting blade.

[0014] As a preferred embodiment of the present invention, several pairs of balls are installed on the top plate, a positioning rod is installed at the other end of the top plate, a positioning cover is inserted on the positioning rod, the positioning cover is installed on the side wall of the base plate, a baffle is slidingly provided inside the positioning cover, one end of the baffle and the positioning rod are connected to each other, and an extrusion spring is clamped between the other end of the baffle and the inner wall of the positioning cover, and the compression direction of the extrusion spring and the moving direction of the positioning rod are on the same straight line.

[0015] As a preferred embodiment of the present invention, a cutting motor is installed on the rotation center of the cutting blade, a connecting frame is installed on the outer shell of the cutting motor, the output shaft of the cutting motor is rotatably connected to the connecting frame, and a positioning seat is installed on the side wall of the connecting frame, a pressure roller is installed on the positioning seat, the pressure roller and the first guide roller are adapted to each other, and the pressure roller is located above the first guide roller, and the pressure roller and the first guide roller are used to position the steel belt to be polished.

[0016] As a preferred embodiment of the present invention, an electric push rod is installed on the connecting frame, and the electric push rod is used to locate the position of the cutting blade, and a mounting frame is installed at the output end of the electric push rod. The mounting frame is L-shaped, and the side walls of the mounting frame are connected to the base plate, and an inclined plate is installed at the bending part of the mounting frame.

[0017] As a preferred embodiment of the present invention, a positioning frame is installed at the center position of the first guide roller and the second guide roller, a synchronization shaft is installed through the positioning frame, the synchronization shaft movably passes through the base plate, a flip motor is installed at the end of the synchronization shaft, and the flip motor housing is installed on the side wall of the base plate.

[0018] As a preferred embodiment of the present invention, a first sleeve is sleeved on one end of the synchronous shaft, and the bottom of the first sleeve is in contact with the waste belt. A second sleeve is sleeved on the center of the synchronous shaft, and the bottom of the second sleeve is in contact with the cut steel belt, and the cut steel belt is in contact with the lower surface of the second guide roller. Positioning rollers are installed at both ends of the second guide roller, and the positioning roller is provided with an inner groove, and the bottom of the inner groove is in contact with the waste belt.

[0019] As a preferred embodiment of the present invention, a groove for guiding the waste belt is provided on the limiting roller, and the waste belt is attached to the upper surface of the limiting roller, and a limiting block is rotatably installed on the side wall of the limiting roller, a limiting rod is movably provided on the limiting block, and the bottom of the limiting rod is installed on the workbench.

[0020] As a preferred embodiment of the present invention, a limiting plate is installed on the top of the limiting rod, and the limiting plate locates the maximum moving path. A limiting spring is sleeved on the limiting rod, and one end of the limiting spring is clamped on the workbench, and the other end is clamped on the bottom of the limiting block. During the process of the waste belt being squeezed and sliding downward, the limiting roller is pushed to move downward synchronously.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] The present invention achieves efficient processing of steel strips of different thicknesses by switching the functions of the first and second guide rollers before and after rotation. When processing steel strips of conventional thickness, the two guide rollers work together to guide the scrap and steel strip smoothly. The scrap is then transported outwards via the limiting roller, and the steel strip smoothly enters the subsequent process, ensuring efficient and stable conventional production. When cutting thicker steel strips, the flip motor is activated to rotate the two guide rollers. The first guide roller lifts the steel strip and moves it up to the inclined friction plate on the side wall of the cutting blade to fully grind off burrs. The pressure roller is synchronously limited to ensure uniform grinding. The second guide roller presses down the scrap, forming a reverse force with the first guide roller to generate shear force, cooperating with the cutting blade to reduce cutting resistance and improve cutting efficiency. The polished steel strip and scrap are guided by the second guide roller into the workbench water tank for cleaning, effectively removing debris, impurities and metal particles, ensuring the cleanliness of the steel strip and preventing scrap residue from affecting subsequent processing.

[0023] The specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In the attached figure:

[0025] Figure 1 A three-dimensional diagram of a steel strip trimming device for cold rolling of stainless steel strip;

[0026] Figure 2 This is a forward view of a steel strip trimming device for cold rolling stainless steel strip;

[0027] Figure 3 This is a cross-sectional view of a base plate of a steel strip trimming device for cold rolling stainless steel strips;

[0028] Figure 4 A steel strip edge trimming device for cold rolling of stainless steel strips Figure 3 Enlarged view of point A in the middle;

[0029] Figure 5 This is a partial structure of a steel strip trimming device for cold rolling of stainless steel strips. Figure 1 ;

[0030] Figure 6 This is a partial structure of a steel strip trimming device for cold rolling of stainless steel strips. Figure 2 ;

[0031] Figure 7 A steel strip edge trimming device for cold rolling of stainless steel strips Figure 6 Enlarged view of point B in the middle;

[0032] Figure 8 This is a rear view of a steel strip trimming device for cold rolling stainless steel strips;

[0033] Figure 9 This is a cross-sectional view of a positioning cover of a steel strip trimming device for cold rolling stainless steel strips;

[0034] Figure 10 This is a diagram of the steel strip conveying after the first guide roller and second guide roller of a steel strip trimming device for cold rolling of stainless steel strip are changed.

[0035] In the picture:

[0036] 1. Workbench; 11. Support legs; 111. Reinforcement ribs; 12. Base plate; 121. Base; 13. Round roller; 131. Positioning plate; 132. Cutting slit; 133. Drive shaft; 134. Drive motor; 14. Cutting disc; 141. Friction plate; 142. Cutting motor; 143. Connecting frame; 144. Electric push rod; 145. Mounting frame; 146. Inclined plate; 15. Conveyor roller; 151. Top plate; 152. Ball bearing; 153. Positioning cover; 154. Positioning rod; 155. Baffle; 156. Extrusion spring; 16. Water tank;

[0037] 2. Synchronous shaft; 21. Flip motor; 211. Positioning frame; 22. First guide roller; 221. Pressing roller; 222. Positioning seat; 23. Second guide roller; 231. Positioning roller; 232. Inner groove; 24. First sleeve; 241. Second sleeve;

[0038] 3. Limit roller; 31. Limit block; 311. Limit rod; 312. Limit plate; 313. Limit spring. DETAILED DESCRIPTION

[0039] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention.

[0040] Example 1:

[0041] like Figures 1 to 10 As shown, a steel strip trimming device for cold rolling of stainless steel strips includes a workbench 1 and an adapted base plate 12.

[0042] A conveying roller 15 for conveying the steel strip is installed on the base plate 12, and a pair of top plates 151 for guiding the position of the steel strip are provided on the conveying roller 15;

[0043] A round roller 13 for supporting the steel strip is rotatably mounted on the base plate 12;

[0044] A cutting blade 14 is mounted on the base plate 12 vertically corresponding to the circular roller 13. A friction plate 141 is mounted on the inner side wall of the cutting blade 14, and the surface of the friction plate 141 is in an inclined state.

[0045] A first guide roller 22 and a second guide roller 23 are mounted on the base plate 12 for synchronous rotation. The first guide roller 22 is used to guide the cut steel strip to slide onto the friction plate 141 for grinding, and the second guide roller 23 is used to guide the ground steel strip and waste to move to the water tank 16 mounted on the surface of the workbench 1 for cleaning. The second guide roller 23 is also used to guide the cut waste to move downward, cooperating with the upward moving steel strip to generate shear force at the cutting position.

[0046] A limiting roller 3 for adjusting the tension of the scrap strip after cutting is also installed on the workbench 1.

[0047] The above structure realizes an integrated process from conveying, cutting, grinding to cleaning of the steel strip, greatly improving production efficiency. The conveying roller 15 and the top plate 151 ensure stable conveying of the steel strip, reducing cutting deviation and material waste caused by unstable conveying. The cooperation between the round roller 13 and the cutting blade 14 makes the cutting process more precise and efficient. The guiding function of the first guide roller 22 and the second guide roller 23 ensures the orderly handling of the steel strip and waste after cutting, avoiding the problems of waste accumulation and chaotic steel strip handling. The limit roller 3 adjusts the tension of the waste strip, further ensuring smooth waste conveying and reducing downtime for maintenance.

[0048] like Figures 1 to 10As shown, in a specific embodiment, four support legs 11 are installed at the bottom of the workbench 1. Adjacent support legs 11 are installed with reinforcing ribs 111. The heights of adjacent reinforcing ribs 111 are different to reduce local excessive stress. A base 121 is installed at the bottom of the base plate 12. The base 121 is in the shape of a boss and is connected to the workbench 1 by bolts. The above structure enhances the overall stability of the device, reduces the risk of equipment damage due to stress concentration, extends the service life of the equipment, and reduces maintenance costs. The bolted connection between the boss-shaped base 121 and the workbench 1 facilitates the installation, disassembly and maintenance of the equipment, and improves the efficiency of equipment maintenance.

[0049] like Figures 1 to 10 As shown, further, positioning plates 131 are mounted at both ends of the roller 13. The diameter of positioning plates 131 is larger than that of roller 13. A drive shaft 133 is mounted at the rotation center of positioning plate 131. Drive shaft 133 movably extends through base 121. A drive motor 134 is mounted at the end of drive shaft 133. The housing of drive motor 134 is mounted on base plate 12. A cutting slit 132 is formed on roller 13, and the cutting slit 132 is vertically aligned with the cutting blade 14. Positioning plates 131 effectively prevent lateral deviation of the steel strip during cutting, ensuring cutting accuracy. Drive motor 134 drives roller 13 to rotate via drive shaft 133, providing stable power for the cutting process and ensuring continuity and stability. The vertical alignment of cutting slit 132 with cutting blade 14 makes cutting more precise, reduces cutting errors, and improves product quality.

[0050] Example 2:

[0051] The difference between the above embodiment and this embodiment is that: Figures 1 to 10 As shown, several pairs of balls 152 are installed on the top plate 151, and a positioning rod 154 is installed at the other end of the top plate 151. A positioning cover 153 is inserted on the positioning rod 154, and the positioning cover 153 is installed on the side wall of the base plate 12. A baffle 155 is slidingly provided inside the positioning cover 153. One end of the baffle 155 is connected to the positioning rod 154, and an extrusion spring 156 is clamped between the other end of the baffle 155 and the inner wall of the positioning cover 153. The compression direction of the extrusion spring 156 and the moving direction of the positioning rod 154 are both on the same straight line. The setting of the ball 152 significantly reduces the friction between the top plate 151 and the steel belt, reduces the scratches and other damages caused by friction on the surface of the steel belt, and improves the surface quality of the product; the adaptive limiting structure composed of the positioning rod 154, the positioning cover 153, the baffle 155 and the extrusion spring 156 can automatically adjust the limiting force of the steel belt according to the different widths and conveying conditions of the steel belt, which not only ensures the stable conveying of the steel belt, but also avoids damage to the steel belt due to excessive limiting, thereby improving the adaptability of the equipment to steel belts of different specifications.

[0052] like Figures 1 to 10As shown, in a specific embodiment, a cutting motor 142 is mounted on the rotation center of the cutting blade 14, and a connecting frame 143 is mounted on the outer shell of the cutting motor 142. The output shaft of the cutting motor 142 is rotatably connected to the connecting frame 143, and a positioning seat 222 is mounted on the side wall of the connecting frame 143. A pressure roller 221 is mounted on the positioning seat 222. The pressure roller 221 and the first guide roller 22 are mutually adapted and positioned above the first guide roller 22. The pressure roller 221 and the first guide roller 22 are used to position the steel strip to facilitate grinding. The cutting motor 142 provides strong power to the cutting blade 14, ensuring high-speed rotation of the cutting blade 14 and improving cutting efficiency. The pressure roller 221 cooperates with the first guide roller 22 to accurately position the steel strip during the grinding process, ensuring that the steel strip is always in the optimal grinding position, improving the grinding effect and grinding quality, and making the surface of the polished steel strip smoother and flatter.

[0053] like Figures 1 to 10 As shown, further, an electric push rod 144 is mounted on the connecting frame 143. The electric push rod 144 is used to position the cutting blade 14, and a mounting frame 145 is mounted on the output end of the electric push rod 144. The mounting frame 145 is L-shaped, and the side walls of the mounting frame 145 are interconnected with the base plate 12. The bend of the mounting frame 145 is installed with an inclined plate 146. The electric push rod 144 can accurately adjust the position of the cutting blade 14 according to the cutting requirements of steel strips of different specifications, achieving flexible cutting of steel strips of different thicknesses and widths, and improving the versatility of the equipment. The design of the L-shaped mounting frame 145 and the inclined plate 146 enhances the stability of the mounting structure of the cutting blade 14, reduces cutting deviations caused by factors such as vibration during the cutting process, and further improves cutting accuracy.

[0054] Example 3:

[0055] The difference between the above embodiment and this embodiment is that: Figures 1 to 10 As shown, a positioning frame 211 is mounted at the center of the first guide roller 22 and the second guide roller 23. A synchronous shaft 2 is mounted on the positioning frame 211, which movably extends through the base plate 12. A flip motor 21 is mounted at the end of the synchronous shaft 2, and the flip motor 21 housing is mounted on the side wall of the base plate 12. This structure drives the synchronous shaft 2 to rotate via the flip motor 21, achieving synchronous rotation of the first guide roller 22 and the second guide roller 23, thereby changing the conveying path of the steel strip and scrap. This allows for flexible processing for different cutting situations (such as thick steel strip cutting), improving the equipment's adaptability and ability to cope with complex working conditions.

[0056] like Figures 1 to 10As shown, in a specific embodiment, a first sleeve 24 is sleeved on one end of the synchronous shaft 2, with the bottom of the first sleeve 24 contacting the scrap strip. A second sleeve 241 is sleeved on the center of the synchronous shaft 2, with the bottom of the second sleeve 241 contacting the cut steel strip, and the cut steel strip contacting the lower surface of the second guide roller 23. Positioning rollers 231 are mounted on both ends of the second guide roller 23, each with an inner groove 232 formed therein, the bottom of which contacting the scrap strip. The first sleeve 24 and the second sleeve 241 respectively limit the position of the scrap strip and the cut steel strip, ensuring that the scrap and steel strip can be stably conveyed even when the guide rollers change their conveying paths, avoiding problems such as deviation and curling, and ensuring the smooth progress of the entire trimming process. The design of the positioning rollers 231 and the inner groove 232 further enhances the positioning of the scrap strip and improves the stability of waste conveying.

[0057] like Figures 1 to 10 As shown, the limiting roller 3 further comprises a groove for guiding the scrap belt, and the scrap belt is attached to the upper surface of the limiting roller 3. A limiting block 31 is rotatably mounted on the side wall of the limiting roller 3. A limiting rod 311 is movably provided through the limiting block 31. The bottom of the limiting rod 311 is mounted on the workbench 1. A limiting plate 312 is mounted on the top of the limiting rod 311. The limiting plate 312 determines the maximum movement path. A limiting spring 313 is sleeved on the limiting rod 311. One end of the limiting spring 313 is clamped to the workbench 1 and the other end is clamped to the bottom of the limiting block 31. As the scrap belt is squeezed and slides downward, it pushes the limiting roller 3 downward synchronously. The limiting roller 3 and the limiting spring 313 can automatically adjust the tension of the scrap belt according to the pressure changes of the scrap, effectively avoiding equipment failure caused by scrap accumulation or poor conveying, ensuring the continuity of scrap conveying, reducing manual intervention, and improving the degree of production automation and production efficiency.

[0058] The implementation principle of the steel strip trimming device for cold rolling of stainless steel strips of the present invention is as follows:

[0059] When performing cold-rolling and trimming operations on stainless steel strips, the steel strip to be processed is placed on the conveyor roller 15. The top plate 151 on the conveyor roller 15 reduces the friction with the steel strip through the ball 152. At the same time, the structure composed of the positioning rod 154, the positioning cover 153, the baffle 155 and the extrusion spring 156 can limit and adaptively adjust the steel strip to ensure that the steel strip maintains a stable position during transportation.

[0060] Driven by conveyor roller 15, the steel strip moves forward, passing over round roller 13. Round roller 13 is rotated by drive motor 134 via drive shaft 133, with cutting slits 132 on its surface aligned vertically with cutting blade 14. Cutting motor 142 drives cutting blade 14 at high speed, while electric push rod 144 adjusts the position of cutting blade 14 via mounting bracket 145, enabling precise trimming of the steel strip.

[0061] Under normal circumstances, the cut waste is transported outwards through the first guide roller and the second guide roller, and the waste is overlapped on the limiting roller and transported outwards synchronously.

[0062] However, when cutting thicker steel strips, burrs are easily formed on the cut surface, and a large amount of debris is generated at the cut position, and the cutting speed also becomes slow. At this time, the turning motor 21 is started to drive the synchronous shaft 2 to rotate, thereby rotating the first guide roller 22 and the second guide roller 23.

[0063] After the first guide roller 22 rotates, its position changes, and through contact with the steel strip, it lifts the steel strip upward. Because the first guide roller 22 corresponds to the friction plate 141 on the side wall of the cutting disc 14, the lifted steel strip can be accurately moved onto the friction plate 141. The surface of the friction plate 141 is tilted. This tilted design causes the contact area and angle with the friction plate 141 to change as the steel strip moves, thus adapting to the grinding needs of different thicknesses. For the longer burrs produced by thicker steel strips, the steel strip can obtain a longer grinding stroke and greater grinding pressure as it moves along the tilted friction plate 141, ensuring that the burrs are fully removed.

[0064] At the same time, a pressure roller 221, mounted on a positioning seat 222, is positioned above the first guide roller 22. After the steel strip is lifted and moved upward, the pressure roller 221 maintains close contact with the steel strip, limiting the position of the steel strip at a higher position. The pressure of the pressure roller 221 limits the sway and deviation of the steel strip during the grinding process, ensuring that the steel strip always moves stably along the inclined surface of the friction plate 141, making the grinding process more uniform and efficient, and ensuring grinding quality.

[0065] After the second guide roller 23 rotates, its movement tendency is to press the waste generated by cutting downward.

[0066] During this process, as the first guide roller 22 moves the steel strip upward and the second guide roller 23 presses the waste material downward, forces in opposite directions are generated between the two, thereby forming a shear force. This shear force cooperates with the cutting force of the cutting blade 14 itself, playing an important auxiliary role in the cutting of thick steel strips. When cutting thick steel strips, the material hardness and thickness are relatively large. Relying solely on the cutting force of the cutting blade 14 will not only slow the cutting speed, but also easily lead to problems such as uneven cutting surfaces and burrs. The generation of shear force can exert an additional pulling effect on the steel strip during the cutting process, helping the cutting blade 14 to cut into the steel strip more smoothly, reducing cutting resistance, and thereby improving cutting efficiency and cutting quality.

[0067] At the same time, the first and second sleeves 24, 241, play an indispensable role in limiting the movement of the scrap strip. The bottom of the first sleeve 24 engages with the scrap strip. As the second guide roller 23 rotates and presses down on the scrap, the first sleeve 24 stably limits the position of the scrap strip, preventing it from shifting or curling during conveyance and ensuring it is conveyed along the intended path. The bottom of the second sleeve 241 engages with the cut steel strip. As the first guide roller 22 moves the steel strip upward, the second sleeve 241 tightly adheres to the strip, providing support and guidance. This ensures the strip remains stable as it is guided to the friction plate 141, preventing it from shaking or straying from the conveying path. Working in tandem, the two sleeves ensure stable movement of the scrap and steel strip even when the guide rollers change their conveying paths. This allows the entire trimming device to operate efficiently and stably when processing thick steel strip, completing tasks such as trimming, grinding, and scrap handling.

[0068] During this process, the scrap material is pressed against the limiting roller 3. The structure of the limiting roller 3, consisting of the groove, limiting block 31, limiting rod 311, and limiting spring 313, adaptively adjusts the tension of the scrap belt according to the pressure changes of the scrap material, preventing the overall operation from being affected by scrap accumulation or poor conveying. The polished steel strip, guided by the second guide roller 23, is moved along with the scrap material to the water tank 16 on the surface of the workbench 1 for cleaning, removing any remaining surface debris and impurities generated by polishing. This completes the efficient trimming, polishing, cleaning, and waste disposal of the thick steel strip.

Claims

1. A steel strip trimming device for cold rolling of stainless steel strips, comprising a workbench (1) and a matching base plate (12), characterized in that: A conveying roller (15) for conveying the steel strip is installed on the base plate (12), and a pair of top plates (151) for guiding the position of the steel strip are provided on the conveying roller (15); A round roller (13) for supporting the steel strip is rotatably mounted on the base plate (12); A cutting blade (14) is installed on a base plate (12) vertically corresponding to the circular roller (13); a friction plate (141) is installed on the inner side wall of the cutting blade (14), and the surface of the friction plate (141) is in an inclined state; A first guide roller (22) and a second guide roller (23) are installed on the base plate (12) to rotate synchronously. The first guide roller (22) is used to guide the cut steel strip to slide onto the friction plate (141) for grinding, and the second guide roller (23) is used to guide the ground steel strip and waste to move to a water tank (16) installed on the surface of the workbench (1) for cleaning. The second guide roller (23) is also used to guide the cut waste to move downward and cooperate with the upward moving steel strip to generate a shear force at the cutting position. The workbench (1) is also provided with a limiting roller (3) for adjusting the tension of the scrap belt after cutting.

2. The steel strip trimming device for cold rolling of stainless steel strip according to claim 1, characterized in that: Four supporting legs (11) are installed at the bottom of the workbench (1), and adjacent supporting legs (11) are installed with reinforcing ribs (111). The heights of adjacent reinforcing ribs (111) are different, which is used to reduce excessive local stress. A base (121) is installed at the bottom of the base plate (12), and the base (121) is in a boss shape. The base (121) is screwed together with the workbench (1) by bolts.

3. The steel strip trimming device for cold rolling of stainless steel strip according to claim 1, characterized in that: Positioning plates (131) are installed at both ends of the circular roller (13), and the diameter of the positioning plates (131) is larger than the diameter of the circular roller (13). A transmission shaft (133) is installed at the rotation center of the positioning plate (131), and the transmission shaft (133) movably passes through the base (121). A driving motor (134) is installed at the end of the transmission shaft (133), and the housing of the driving motor (134) is installed on the base plate (12). A cutting slit (132) is opened on the circular roller (13), and the cutting slit (132) vertically corresponds to the cutting blade (14).

4. The steel strip trimming device for cold rolling of stainless steel strip according to claim 1, characterized in that: A plurality of pairs of balls (152) are mounted on the top plate (151), a positioning rod (154) is mounted on the other end of the top plate (151), a positioning cover (153) is plugged into the positioning rod (154), the positioning cover (153) is mounted on the side wall of the base plate (12), a baffle (155) is slidably arranged inside the positioning cover (153), one end of the baffle (155) and the positioning rod (154) are connected to each other, an extrusion spring (156) is clamped between the other end of the baffle (155) and the inner wall of the positioning cover (153), and the compression direction of the extrusion spring (156) and the moving direction of the positioning rod (154) are both on the same straight line.

5. The steel strip trimming device for cold rolling of stainless steel strip according to claim 1, characterized in that: A cutting motor (142) is mounted on the rotation center of the cutting blade (14), a connecting frame (143) is mounted on the outer shell of the cutting motor (142), an output shaft of the cutting motor (142) is rotatably connected to the connecting frame (143), a positioning seat (222) is mounted on the side wall of the connecting frame (143), a pressure roller (221) is mounted on the positioning seat (222), the pressure roller (221) and the first guide roller (22) are adapted to each other, and the pressure roller (221) is located above the first guide roller (22), and the pressure roller (221) and the first guide roller (22) are used to locate the position of the steel strip so as to facilitate grinding.

6. The steel strip trimming device for cold rolling of stainless steel strip according to claim 5, characterized in that: An electric push rod (144) is installed on the connecting frame (143), and the electric push rod (144) is used to locate the position of the cutting blade (14). A mounting frame (145) is installed at the output end of the electric push rod (144). The mounting frame (145) is L-shaped, and the side wall of the mounting frame (145) is connected to the base plate (12). An inclined plate (146) is installed at the bending part of the mounting frame (145).

7. The steel strip trimming device for cold rolling of stainless steel strip according to claim 1, characterized in that: A positioning frame (211) is installed at the center position of the first guide roller (22) and the second guide roller (23), a synchronous shaft (2) is installed through the positioning frame (211), the synchronous shaft (2) movably passes through the base plate (12), a flip motor (21) is installed at the end of the synchronous shaft (2), and the flip motor (21) housing is installed on the side wall of the base plate (12).

8. The steel strip trimming device for cold rolling of stainless steel strip according to claim 7, characterized in that: One end of the synchronous shaft (2) is sleeved with a first sleeve (24), the bottom of the first sleeve (24) is in contact with the waste belt, the center of the synchronous shaft (2) is sleeved with a second sleeve (241), the bottom of the second sleeve (241) is in contact with the cut steel belt, and the cut steel belt is in contact with the lower surface of the second guide roller (23), positioning rollers (231) are installed at both ends of the second guide roller (23), and an inner groove (232) is provided on the positioning roller (231), and the bottom of the inner groove (232) is in contact with the waste belt.

9. The steel strip trimming device for cold rolling of stainless steel strip according to claim 1, characterized in that: The limiting roller (3) is provided with a groove for guiding the waste belt, and the waste belt is attached to the upper surface of the limiting roller (3), and a limiting block (31) is rotatably installed on the side wall of the limiting roller (3), a limiting rod (311) is movably provided on the limiting block (31), and the bottom of the limiting rod (311) is installed on the workbench (1).

10. The steel strip trimming device for cold rolling of stainless steel strip according to claim 9, characterized in that: A limiting plate (312) is installed on the top of the limiting rod (311), and the limiting plate (312) locates the maximum moving path. A limiting spring (313) is sleeved on the limiting rod (311), and one end of the limiting spring (313) is clamped on the workbench (1), and the other end is clamped on the bottom of the limiting block (31). When the waste belt is squeezed and slides downward, the limiting roller (3) is pushed to move downward synchronously.

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