Steel belt fixed-width trimming machine and trimming method

Abstract

The invention discloses a steel belt fixed-width edge trimmer and an edge trimming method, and belongs to the technical field of steel belt edge trimming devices.The steel belt fixed-width edge trimmer comprises a rack and a plurality of sets of edge trimming stations and clamping stations which are arranged on the rack, the edge trimming stations are arranged between every two adjacent sets of clamping stations, and the clamping stations are arranged on the rack. A steel belt to be trimmed sequentially penetrates through the clamping station and the trimming station. After the steel belt is tensioned, the shading assembly resets, light emitted by the detection assembly can smoothly pass through, the driving assembly stops driving the pressing plate immediately, the pressing plate is made to maintain stable pressing force, in the whole process, the driving assembly slowly pressurizes the pressing plate, surface damage of the steel belt caused by sudden pressure increase can be avoided, and the service life of the steel belt is prolonged. And the problem of overlarge instantaneous load of the traction mechanism at the station of the traction machine can be prevented, and stable and reliable operation of equipment is ensured.

Description

Technical Field

[0001] This invention relates to the field of steel strip trimming equipment, and particularly to a steel strip fixed-width trimming machine and trimming method. Background Technology

[0002] Steel strip refers to a narrow and long plate made of materials such as carbon steel. It is mainly used as a traction and load-bearing component of belt conveyors and can also be used for cargo bundling. It is a widely used metal profile in industrial production.

[0003] Chinese patent CN219211859U discloses a steel strip trimming mechanism, including a tool holder body, a lead screw, and a beveled tool holder. The tool holder body has a rectangular first opening at its upper part, and the beveled tool holder is housed within the first opening. The lead screw passes through both sides of the tool holder body and connects to the beveled tool holder. Beveled blades are mounted on the beveled tool holder. The distance between the two beveled tool holders is controlled by the lead screw to accommodate steel strips of different widths. Adjustment is simple, and direct contact with the blades is not required, thus eliminating any danger.

[0004] During use, the above-mentioned device only uses a set of beveled cutters to cut the side of the steel strip. It does not have an effective limiting and clamping positioning structure for the steel strip, which results in poor running stability of the steel strip at the cutting position. It is prone to slippage and displacement, making it difficult to ensure stable cutting conditions and trimming accuracy.

[0005] Existing technology uses two sets of pressure rollers to limit the steel strip and maintain its tension at the cutter. This method is common in small and medium-sized steel strip trimming equipment due to its simple structure. However, it still has some shortcomings: the pressure rollers and steel strip are in line contact, resulting in a limited contact area, a small clamping constraint range, poor tensioning and positioning effects, and an inability to effectively suppress slight slack and vibration of the steel strip in the cutting section. The steel strip is still prone to unstable cutting posture, affecting the consistency of trimming quality.

[0006] Therefore, it is necessary to provide a steel strip fixed-width trimming machine and trimming method to solve the above-mentioned technical problems. Summary of the Invention

[0007] The purpose of this invention is to provide a steel strip fixed-width trimming machine and trimming method to solve the technical problems mentioned in the background art.

[0008] Based on the above ideas, the present invention provides the following technical solution: a steel strip fixed width trimming machine, including a frame and multiple sets of trimming stations and clamping stations arranged on the frame. The trimming stations are located between two adjacent sets of clamping stations, and the steel strip to be trimmed passes through the clamping stations and trimming stations in sequence. The trimming station includes a cutter, the position of which can be adjusted relative to the frame along the width direction of the steel strip; The clamping station is provided with a base plate and a pressure plate located above the base plate. A protective pad is provided between the pressure plate and the base plate. The steel strip passes through the folded protective pad. As the pressure plate moves closer to the base plate, the protective pad is pressed against the surface of the steel strip, keeping the steel strip between adjacent clamping stations taut.

[0009] As a further aspect of the present invention: a driving component is provided at the clamping station, which is used to drive the pressure plate closer to or away from the base plate.

[0010] As a further aspect of the present invention: a detection component is provided at two adjacent clamping stations, the detection component being used to detect whether the steel strip between the two adjacent clamping stations is taut, and the detection component is electrically connected to the drive component.

[0011] As a further aspect of the present invention: the detection component is arranged parallel to the traveling direction of the steel strip, and the detection component is equipped with a light-shielding component; the light-shielding component can move synchronously with the raised part of the steel strip, and blocks the light emitted by the detection component during the movement; when the steel strip between two adjacent clamping stations is tensioned, the light-shielding component moves in the opposite direction to reset and is offset from the light emitted by the detection component.

[0012] As a further aspect of the present invention: the light-shielding component includes an upper pressure roller and a lower pressure roller that are attached to the upper and lower sides of the steel strip, the upper pressure roller and the lower pressure roller are mounted on a support component, and the support component can move relative to the frame along the forward direction of the steel strip. A gear is rotatably mounted on the support assembly, and the gear meshes with a drive rack mounted on the frame. A driven rack is mounted on the support assembly, and the driven rack can move relative to the support assembly along a direction perpendicular to the travel direction of the steel strip. A light-shielding plate is fixedly mounted on the driven rack, and the driven rack meshes with the gear. During the synchronous movement of the light-shielding assembly with the steel strip, the meshing of the gear and the driven rack can drive the light-shielding plate to move and coincide with the light emitted by the detection assembly.

[0013] As a further aspect of the present invention: the support assembly is elastically connected to the frame along the direction of the steel strip travel, and when the steel strip between two adjacent clamping stations is tightened, the support assembly resets under elastic force.

[0014] As a further aspect of the present invention: a base is provided at the clamping station, and the bottom plate is fixedly connected to the base.

[0015] As a further aspect of the present invention: the two ends of the steel strip are respectively the uncoiler station and the traction machine station, one end of the steel strip is drawn out from the uncoiler station and passes through the clamping station and the trimming station in sequence and is finally connected to the traction machine station.

[0016] As a further aspect of the present invention: the lower pressure roller is rotatably coupled with the support assembly, and the upper pressure roller can move relative to the support assembly in a direction perpendicular to the steel strip's travel direction.

[0017] A trimming method using the above-mentioned steel strip width trimming machine includes the following steps: passing the steel strip sequentially through the clamping station and the trimming station, so that the steel strip is located between the pressure plate and the base plate and placed inside the protective pad; driving the pressure plate close to the base plate to clamp the steel strip, so that the steel strip between two adjacent clamping stations remains taut; and cutting the side of the steel strip with a cutter at the trimming station.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows: Since the light-shielding component can move synchronously with the raised portion of the steel strip and block the light emitted by the detection component during movement, the pressure plate continuously presses the steel strip under the drive of the drive component until the raised portion of the steel strip is eliminated. Once the steel strip is tensioned, the light-shielding component resets, allowing the light emitted by the detection component to pass through smoothly. The drive component then stops driving the pressure plate, maintaining a stable clamping force. Throughout the process, the drive component applies pressure to the pressure plate slowly, which avoids damage to the steel strip surface caused by sudden pressure increases and prevents excessive instantaneous load on the traction mechanism at the traction machine station, ensuring stable and reliable equipment operation. Attached Figure Description

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0020] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram showing the positions of the protective pad and the steel strip of the present invention; Figure 3 This is the present invention. Figure 2 A magnified structural diagram at point A; Figure 4 This is a schematic diagram showing the position of the detection component of the present invention; Figure 5 This is a schematic diagram of the drive rack and gear engagement of the present invention; Figure 6 This is a schematic diagram of the installation of the light-shielding plate of the present invention; Figure 7 This is the present invention. Figure 6 A magnified structural diagram at point B; Figure 8 This is a schematic diagram of the drive component structure of the present invention; Figure 9 This is a schematic diagram showing how the raised portion on the steel strip of the present invention drives the light-shielding component to move.

[0021] In the diagram: 1. Frame; 2. Steel strip; 3. Clamping station; 301. Pressure plate; 302. Base plate; 303. Limiting spring; 304. Pressure rod; 305. Screw sleeve; 306. Limiting component; 307. Guide wheel; 308. Screw; 4. Trimming station; 5. Rubber roller; 6. Protective pad; 7. Detection assembly; 8. Lower limit plate; 9. Light shield; 10. Connecting component; 1001. Light transmission groove; 11. Upper pressure roller; 1101. Connecting block; 12. Lower pressure roller; 1201. Support frame; 13. Adjusting bolt; 14. Upper limit plate; 15. Elastic component; 16. Longitudinal limiting roller; 17. Lateral limiting roller; 18. Drive rack; 19. Gear; 20. Driven rack; 21. Guide rod. Detailed Implementation

[0022] The following specific examples illustrate the implementation of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that, unless otherwise specified, the following embodiments and features described therein can be combined with each other.

[0023] It should be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of the present invention. Therefore, the illustrations only show the components related to the present invention and are not drawn according to the actual number, shape and size of the components in the actual implementation. In the actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0024] like Figures 1-9 As shown, a steel strip width-fixing trimming machine includes a frame 1 and multiple sets of trimming stations 4 and clamping stations 3 disposed on the frame 1. Specifically, the trimming stations 4 are disposed between two adjacent sets of clamping stations 3. The two ends of the steel strip 2 are respectively an uncoiler station a and a traction machine station b. In actual use, one end of the steel strip 2 is led out from the uncoiler station a and passes through the clamping station 3 and the trimming station 4 in sequence, and finally connects to the traction machine station b. In actual use, the steel strip 2 is wound by the traction mechanism at the traction machine station b and moves horizontally above the frame 1. The cutter at the trimming station 4 can remove excess edge material on both sides of the steel strip 2, thereby keeping the steel strip 2 at a set width. By setting the clamping stations 3, the steel strip 2 between two adjacent sets of clamping stations 3 can be kept taut, thereby improving the stability and trimming accuracy of the cutter in trimming the steel strip 2.

[0025] Of course, the cutter can be adjusted relative to the frame 1 along the width direction of the steel strip 2 to accommodate the processing of steel strips 2 of different widths. Specifically, the position adjustment of the cutter can be achieved by means of cylinder drive or manual adjustment by lead screw and slider, etc. These are all existing mature technologies, so the specific structure and position adjustment mechanism of the cutter will not be described in detail in this article.

[0026] The clamping station 3 mainly includes a base plate 302 and a pressure plate 301 disposed above the base plate 302. The pressure plate 301 is driven by an external power component and moves in a direction perpendicular to the surface of the steel strip 2, while the steel strip 2 being pulled out is located between the base plate 302 and the pressure plate 301. In actual use, the driving component drives the pressure plate 301 to approach the base plate 302 and clamp the steel strip 2, thereby forming a tension on the steel strip 2 on the feed side of the steel strip 2 (i.e., the side of the uncoiler station a), which is beneficial for tightening the steel strip 2.

[0027] Furthermore, a protective pad 6 can be installed between the pressure plate 301 and the base plate 302 to prevent direct contact between the pressure plate 301 or the base plate 302 and the steel strip 2, thus avoiding scratches on its surface. Specifically, the protective pad 6 can be made of materials such as felt, industrial fiber cloth, or polyurethane, which can ensure stable friction with the steel strip 2, keeping the steel strip 2 taut between adjacent clamping stations 3, and effectively protect the surface of the steel strip 2 from scratches. In actual operation, the protective pad 6 can be folded into a U-shape and arranged between the base plate 302 and the pressure plate 301. The steel strip 2 passes through the protective pad 6 for clamping and conveying. The specific structure is as follows: Figure 2 As shown.

[0028] In actual operation, to prevent the steel strip 2 between adjacent clamping stations 3 from becoming loose or arched, in one embodiment, a detection component 7 can be installed vertically to detect the deformation state of the steel strip 2 between two adjacent clamping stations 3. When the detection component 7 detects that the steel strip 2 has arched, the pressure plate 301 can be controlled to increase the clamping force on the steel strip 2, further clamping the steel strip 2 on the feed side, thereby keeping the steel strip 2 between two adjacent clamping stations 3 taut.

[0029] However, in actual use, if the steel strip 2 jumps along a direction perpendicular to the travel direction, it can easily cause the detection component 7 in the above embodiment to be falsely triggered. Furthermore, when the steel strip 2 has a local bulge, the detection component 7 cannot move synchronously with the bulge, making it difficult to accurately control the clamping force of the pressure plate 301. For example, when a bulge on the steel strip 2 passes the detection component 7, if the pressure plate 301 has not yet applied its rated pressure and the steel strip 2 is not taut, the detection component 7 cannot control the movement of the pressure plate 301 in a timely manner.

[0030] To address the aforementioned issues, this solution arranges the detection component 7 parallel to the traveling direction of the steel strip 2, and includes a light-shielding component at the detection component 7. This light-shielding component moves synchronously with the raised portion of the steel strip 2, blocking the light emitted by the detection component 7 during its movement. This facilitates the detection component 7's control of the pressure plate 301 to move downwards, further tightening the steel strip 2. Once the steel strip 2 between the two clamping stations 3 is taut, the light-shielding component moves in the opposite direction to reset, offsetting the light emitted by the detection component 7, allowing the pressure plate 301 to press and tighten the steel strip 2 with a set pressure.

[0031] It should be noted that the light-shielding component can be set between two adjacent sets of clamping stations 3 near the feed side.

[0032] In summary, since the light-shielding component can move synchronously with the raised portion of the steel belt 2 and block the light emitted by the detection component 7 during its movement, the pressure plate 301 continuously presses the steel belt 2 under the drive of the drive component until the raised portion of the steel belt 2 is eliminated. Once the steel belt 2 is tensioned, the light-shielding component resets, allowing the light emitted by the detection component 7 to pass through smoothly. The drive component then stops driving the pressure plate 301, maintaining a stable clamping force on the pressure plate 301.

[0033] Throughout the process, the drive assembly slowly applies pressure to the pressure plate 301, which can avoid damage to the surface of the steel strip 2 caused by a sudden increase in pressure, and also prevent the traction mechanism at the traction machine station b from experiencing excessive instantaneous load, thus ensuring stable and reliable operation of the equipment.

[0034] The light-shielding assembly includes an upper pressure roller 11 and a lower pressure roller 12 attached to the upper and lower sides of the steel strip 2. The upper pressure roller 11 and the lower pressure roller 12 are mounted on a support assembly, and the support assembly can move relative to the frame 1 along the forward direction of the steel strip 2.

[0035] The support assembly includes an upper limit plate 14 located at the top of the frame 1 and a lower limit plate 8 located at the bottom of the frame 1, with a rod-shaped connector 10 fixed between the upper limit plate 14 and the lower limit plate 8. Figures 4-7 As shown, a gear 19 is rotatably mounted on the connector 10, and a drive rack 18 meshing with the gear 19 is fixedly mounted at the bottom of the frame 1. When the raised portion on the steel belt 2 drives the light-shielding assembly to move synchronously, the meshing of the drive rack 18 with the gear 19 can drive the gear 19 to rotate. A driven rack 20 is elastically connected to the top of the lower limit plate 8. The driven rack 20 can move relative to the lower limit plate 8 along a direction perpendicular to the travel direction of the steel belt 2, and the driven rack 20 meshes with the gear 19. Figures 6-7 As can be seen from the image, the connector 10 is provided with a light-transmitting groove 1001 through which the light emitted by the detection component 7 passes, and a light-shielding plate 9 is fixedly installed between the two driven racks 20, with the light-shielding plate 9 located on one side of the light-transmitting groove 1001.

[0036] In actual use, the steel belt 2 passes between the upper pressure roller 11 and the lower pressure roller 12. When the steel belt 2 is taut, it can only drive the upper pressure roller 11 and the lower pressure roller 12 to rotate during its movement. However, when the steel belt 2 is bent or partially bulging, it cannot pass smoothly through the upper pressure roller 11 and the lower pressure roller 12. At this time, the steel belt 2 will exert a pushing force on the upper pressure roller 11 and the lower pressure roller 12 during its movement, so that the upper pressure roller 11 and the lower pressure roller 12 can move synchronously with the steel belt 2. When the light-shielding component moves synchronously with the steel belt 2, the meshing of the drive rack 18 and the gear 19 drives the gear 19 to rotate. This, in turn, the meshing of the gear 19 and the driven rack 20 causes the driven rack 20 and the light-shielding plate 9 to move upwards, allowing the light-shielding plate 9 to block the light emitted by the detection component 7. It should be noted that when the light-shielding plate 9 just blocks the light emitted by the detection component 7, the gear 19 and the driven rack 20 are misaligned. However, since the gear 19 is continuously rotating, the driven rack 20 and the light-shielding plate 9 will not fall. At this time, the detection component 7 can control the drive component to move the pressure plate 301 downwards, further pressing the steel belt 2. As the steel belt 2 is further tightened, it becomes taut. When the steel strip 2 is taut, the light-shielding component moves and resets against the forward direction of the steel strip 2. During this process, as the driven rack 20 moves toward the side closer to the lower limit plate 8, the gear 19 meshes with the driven rack 20 and drives the light-shielding plate 9 to move downward, so that the light emitted by the detection component 7 can pass through the light-transmitting groove 1001, thereby controlling the drive component to stop pressing the pressure plate 301, so that the pressure plate 301 maintains a stable clamping pressure on the steel strip 2.

[0037] like Figure 1 As shown, multiple sets of rubber rollers 5 are provided on the discharge side of the steel strip 2 (the side near the traction machine station b). After the discharge side of the steel strip 2 is wound around the outside of the multiple sets of rubber rollers 5, it is connected to the traction mechanism at the traction machine station b.

[0038] A base is provided at the clamping station 3, and the base plate 302 is fixedly connected to the base. The drive assembly is also fixedly mounted on the base. In one embodiment, the drive assembly may be a cylinder, and the output end of the cylinder is fixed to the pressure plate 301.

[0039] In another embodiment, the drive assembly includes a motor and a screw 308 connected to the motor output. For example... Figure 8As shown, a threaded sleeve 305 is threaded onto the outer side of the screw 308, and a pressure rod 304 is fixedly connected to the top of the pressure plate 301, with the top end of the pressure rod 304 extending into the threaded sleeve 305. The pressure rod 304 has a T-shaped cross-section along its own axis, and the bottom end of the threaded sleeve 305 extends inward to form a convex ring that matches the top end of the pressure rod 304. A limiting spring 303 is provided between the bottom of the threaded sleeve 305 and the pressure plate 301, and the limiting spring 303 is sleeved on the outside of the pressure rod 304.

[0040] Furthermore, a limiting member 306 is fixedly installed on the outer side of the threaded sleeve 305. The limiting member 306 passes through a pre-set through groove on the base and can move relative to the base in a direction perpendicular to the movement of the steel strip 2. Multiple sets of guide wheels 307 are installed on the limiting member 306, and the guide wheels 307 roll against the inner and outer sides of the base. This structure can restrict the rotation of the threaded sleeve 305, so that when the motor drives the screw 308 to rotate, the threaded sleeve 305 can drive the limiting spring 303 and the pressure plate 301 to move downward. When the pressure plate 301 presses the steel strip 2 and the threaded sleeve 305 continues to move downward, the limiting spring 303 can be compressed. By adjusting the compression of the limiting spring 303, precise control of the clamping force of the pressure plate 301 can be achieved.

[0041] Compared to directly using a cylinder or hydraulic cylinder to drive the pressure plate 301, this embodiment drives the pressure plate 301 to move through threaded engagement, resulting in a more stable and continuous pressure transmission. This allows for gradual adjustment of the clamping force on the steel strip 2, improving the stability of the trimming process.

[0042] like Figure 3 As shown, a support frame 1201 is fixedly installed on the top of the upper limit plate 14, and the lower pressure roller 12 is rotatably engaged with the support frame 1201. A connecting block 1101 is provided on the side of the support frame 1201 away from the lower limit plate 8, and the upper pressure roller 11 is rotatably engaged with the connecting block 1101. Further, an adjusting bolt 13 is provided between the connecting block 1101 and the support frame 1201. The bottom end of the adjusting bolt 13 is rotatably engaged with the support frame 1201, and the adjusting bolt 13 passes through the connecting block 1101 and is threadedly connected to the connecting block 1101. This structure facilitates the adjustment of the distance between the upper pressure roller 11 and the lower pressure roller 12. On the one hand, it facilitates the passage of the steel strip 2 between the upper pressure roller 11 and the lower pressure roller 12; on the other hand, it facilitates the adaptation to steel strips 2 of different thicknesses.

[0043] Combination Figures 1-3 As shown, the frame 1 has a strip groove for the connector 10 to pass through, and the strip groove is set parallel to the traveling direction of the steel strip 2.

[0044] During operation, longitudinal limiting rollers 16 can be rotatably installed on the opposite surfaces of the upper limiting plate 14 and the lower limiting plate 8. The longitudinal limiting rollers 16 roll against the surface of the frame 1 to limit the light-shielding assembly perpendicular to the traveling direction of the steel strip 2. A transverse limiting roller 17 is rotatably installed on the connecting member 10. The transverse limiting roller 17 rolls against the side wall of the strip groove to limit the width of the steel strip 2 of the light-shielding assembly.

[0045] In order for the light-shielding component to be reset, in one embodiment, the top part of the frame 1 can be tilted. When the steel strip 2 between two adjacent clamping stations 3 is tightened, the light-shielding component can be reset by moving against the direction of the steel strip 2 under the action of gravity.

[0046] In another embodiment, the top portion of the frame 1 can be arranged horizontally, but an elastic element 15, such as a tension spring, is installed between the end face of the strip groove and the connector 10. The tension force exerted by the tension spring on the connector 10 can drive the light-shielding assembly to reset.

[0047] like Figure 4 As shown, the detection component 7 can be a photoelectric sensor, an infrared sensor, etc., and in this solution, a photoelectric sensor is preferred. Specifically, a light emitter and a light receiver are respectively provided at the bottom of the frame 1 and on both sides of the light-shielding component. The light emitted by the light emitter can pass through the light-transmitting groove 1001 to reach the light receiver. When the light-shielding plate 9 moves upward and blocks the light, the detection component 7 can control the drive component to drive the pressure plate 301 to press downward.

[0048] It should be noted that, since the travel speed of the steel belt 2 is relatively constant, a time relay connected to the drive assembly can be set in actual operation; after the drive assembly stops driving the pressure plate 301 for a period of time, the drive assembly can drive the pressure plate 301 to reset and maintain the initial clamping force on the steel belt 2, which is more energy-efficient; at this time, the raised part on the steel belt 2 has been conveyed forward to the traction machine station b.

[0049] like Figure 5 As shown, the connector 10 has rotating shafts mounted on both sides, and the rotating shafts pass through the longitudinal limiting roller 16 and the gear 19 and are fixed to both.

[0050] like Figure 7 As shown, the driven rack 20 is L-shaped, and a guide rod 21 is fixedly installed on the lower limit plate 8. The guide rod 21 passes through the horizontal section of the driven rack 20 and slides with it. Springs are provided between the lower limit plate 8 and the horizontal section of the driven rack 20, as well as between the end of the guide rod 21 and the horizontal section of the driven rack 20, so that the driven rack 20 and the lower limit plate 8 are elastically engaged.

[0051] The above embodiments are merely illustrative of the principles and effects of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in the present invention should still be covered by the claims of the present invention.

Claims

1. A steel strip width-fixed trimming machine, comprising a frame (1) and multiple trimming stations (4) and clamping stations (3) arranged on the frame (1), characterized in that: The trimming station (4) is located between two adjacent clamping stations (3), and the steel strip (2) to be trimmed passes through the clamping station (3) and the trimming station (4) in sequence. The trimming station (4) includes a cutter, the cutter being adjustable in position relative to the frame (1) along the width direction of the steel strip (2); The clamping station (3) is provided with a base plate (302) and a pressure plate (301) located above the base plate (302). A protective pad (6) is provided between the pressure plate (301) and the base plate (302). The steel strip (2) passes through the folded protective pad (6). As the pressure plate (301) moves closer to the base plate (302), the protective pad (6) is pressed against the surface of the steel strip (2), so that the steel strip (2) between adjacent clamping stations (3) remains taut.

2. The steel strip fixed-width trimming machine according to claim 1, characterized in that: A drive assembly is provided at the clamping station (3), which is used to move the pressure plate (301) closer to or away from the base plate (302).

3. A steel strip width-fixed trimming machine according to claim 2, characterized in that: A detection component (7) is provided at two adjacent clamping stations (3). The detection component (7) is used to detect whether the steel strip (2) between the two adjacent clamping stations (3) is taut, and the detection component (7) is electrically connected to the drive component.

4. The steel strip width-fixed trimming machine according to claim 3, characterized in that: The detection component (7) is set parallel to the traveling direction of the steel strip (2), and the detection component (7) is equipped with a light-shielding component; the light-shielding component can move synchronously with the raised part of the steel strip (2) and block the light emitted by the detection component (7) during the movement; when the steel strip (2) between two adjacent clamping stations (3) is tensioned, the light-shielding component moves in the opposite direction to reset and is offset from the light emitted by the detection component (7).

5. A steel strip width-fixed trimming machine according to claim 4, characterized in that: The light-shielding assembly includes an upper pressure roller (11) and a lower pressure roller (12) attached to the upper and lower sides of the steel strip (2). The upper pressure roller (11) and the lower pressure roller (12) are mounted on a support assembly, and the support assembly can move relative to the frame (1) along the forward direction of the steel strip (2). A gear (19) is rotatably mounted on the support assembly. The gear (19) meshes with a drive rack (18) mounted on the frame (1). A driven rack (20) is mounted on the support assembly. The driven rack (20) can move relative to the support assembly along a direction perpendicular to the steel belt (2). A light shield (9) is fixedly mounted on the driven rack (20). The driven rack (20) meshes with the gear (19). During the synchronous movement of the light shield assembly with the steel belt (2), the meshing of the gear (19) and the driven rack (20) can drive the light shield (9) to move and coincide with the light emitted by the detection assembly (7).

6. A steel strip width-fixed trimming machine according to claim 5, characterized in that: The support assembly is elastically connected to the frame (1) along the traveling direction of the steel strip (2). When the steel strip (2) between two adjacent clamping stations (3) is tightened, the support assembly resets under elastic force.

7. A steel strip width-fixed trimming machine according to claim 1, characterized in that: A base is provided at the clamping station (3), and the base plate (302) is fixedly connected to the base.

8. A steel strip width-fixed trimming machine according to claim 1, characterized in that: The two ends of the steel strip (2) are the uncoiler station and the traction machine station, respectively. One end of the steel strip (2) is drawn out from the uncoiler station and passes through the clamping station (3) and the trimming station (4) in sequence and is finally connected to the traction machine station.

9. A steel strip width-fixed trimming machine according to claim 5, characterized in that: The lower pressure roller (12) is rotatably engaged with the support assembly, and the upper pressure roller (11) can move relative to the support assembly in a direction perpendicular to the travel direction of the steel strip (2).

10. A trimming method using a steel strip fixed-width trimming machine as described in any one of claims 1-9, characterized in that, The process includes the following steps: passing the steel strip (2) through the clamping station (3) and the trimming station (4) in sequence, so that the steel strip (2) is located between the pressure plate (301) and the base plate (302) and placed inside the protective pad (6); driving the pressure plate (301) to approach the base plate (302) to clamp the steel strip (2), so that the steel strip (2) between the two adjacent clamping stations (3) remains taut; and cutting the side of the steel strip (2) with a cutter at the trimming station (4).

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