A pinch roll device for preventing slip of an oiled coated strip

Abstract

The utility model relates to strip production technical field, the utility model provides a kind of prevent that oil coating layer strip steel slips pinch roll device, including mounting bracket, mounting bracket is used to set in the feeding side of shearing device;Lower clamp roller is rotatably connected in mounting bracket: upper clamp roller is liftable and rotatably set relative to mounting bracket, and located above lower clamp roller;Rubber carrier roller is rotatably connected in mounting bracket, located lower clamp roller side away from shearing device. The height setting of through rubber carrier roller, makes strip steel by rubber carrier roller support under non pinch state, avoid the rust preventive oil on the surface of strip steel to adhere to lower clamp roller continuously, reduce the oil stain accumulation on the surface of lower clamp roller from source, maintain its friction coefficient. The hinged drive structure of swing plate and telescopic drive part, realize the stable lifting of upper clamp roller using lever principle, ensure the parallelism when upper clamp roller and lower clamp roller pinch strip steel, make strip steel stress uniform, avoid the deviation or slip due to uneven clamping force.

Description

Technical Field

[0001] The embodiments of this utility model relate to the field of strip steel production technology, specifically to a pinch roller device for preventing slippage of oil-coated strip steel. Background Technology

[0002] In the steel processing industry, oil-coated strip steel undergoes multiple processes during production, with the shearing process being a crucial one. Before the shearing process, pinch rollers are typically used to clamp and feed the strip steel to ensure it enters the shearing equipment accurately and stably, guaranteeing shearing precision and production efficiency. In existing pinch roll devices, the strip steel remains in contact with the lower pinch roll before the shearing process. Because the strip surface is coated with anti-rust oil, prolonged contact causes this oil to easily adhere to the lower pinch roll. As the anti-rust oil accumulates, the coefficient of friction on the lower pinch roll surface decreases. During the initial pinching of the strip, the friction between the strip and the lower pinch roll is insufficient to ensure smooth strip movement, easily leading to strip slippage. Once slippage occurs, it not only affects the strip's conveying speed and positional accuracy, resulting in non-compliant dimensions after shearing and reduced product quality, but it can also cause surface scratches and coating damage, increasing the scrap rate. Furthermore, frequent slippage causes wear and tear on the pinch roll device itself, shortening its lifespan and increasing maintenance costs. Utility Model Content

[0003] To overcome the above-mentioned defects, the present invention provides a pinch roll device to prevent slippage of oil-coated strip steel. This solves the technical problem in the prior art where the strip steel is in constant contact with the lower pinch roll of the pinch roll device before the shearing process, causing the lower pinch roll to easily adhere to the anti-rust oil on the strip steel, which leads to the strip steel slipping easily when the pinch roll device starts to pinch the strip steel.

[0004] According to one aspect, at least one embodiment of the present invention provides a pinch roller device for preventing slippage of oil-coated strip steel, used for transitioning and conveying strip steel to a shearing device, comprising: Mounting bracket, the mounting bracket being disposed on the loading side of the shearing device; The lower clamping roller is rotatably connected to the mounting frame. The upper clamping roller is vertically and rotatably mounted relative to the mounting frame and is located above the lower clamping roller, forming a clamping space between the upper clamping roller and the lower clamping roller; A rubber idler roller is rotatably connected to the mounting frame and located on the side of the lower clamping roller away from the shearing device. The upper end of the roller surface of the rubber idler roller is higher than the upper end of the roller surface of the lower clamping roller, and is used to support the strip steel passing through the clamping space so that the strip steel is disengaged from the lower clamping roller.

[0005] For example, in a pinch roller device for preventing slippage of oil-coated strip steel provided in at least one embodiment of the present invention, there are two swing plates, which are respectively hinged to the two ends of the mounting frame, and the two ends of the upper pinch roller are respectively rotatably connected to the two swing plates. A telescopic drive component, one end of which is hinged to the mounting frame and the other end of which is hinged to the swing plate, is used to drive the swing plate to swing, thereby driving the upper clamping roller to rise and fall, so as to realize the clamping or releasing of the strip steel in the clamping space.

[0006] For example, in a pinch roller device for preventing slippage of oil-coated strip steel provided in at least one embodiment of the present invention, the mounting frame is provided with mounting parts at both ends on the side away from the shearing device, and the two ends of the rubber roller are respectively rotatably connected to two bearing seats provided on the mounting parts.

[0007] For example, in a pinch roller device for preventing slippage of oil-coated strip steel provided in at least one embodiment of the present invention, the bearing seat is lifted and connected to the mounting part.

[0008] For example, in a pinch roller device for preventing slippage of oil-coated strip steel provided in at least one embodiment of the present invention, the bearing seat has a protrusion on its side, and the mounting part has a limiting plate located below the bearing seat. A limiting bolt is provided on the limiting plate, the axis of the limiting bolt extends toward the protrusion, and the end of the limiting bolt can abut against the protrusion to push the bearing seat up.

[0009] For example, in a pinch roller device for preventing slippage of oil-coated strip steel provided in at least one embodiment of the present invention, a limiting screw is provided on the bearing seat, and the end of the limiting screw can abut against the mounting part to limit the lifting position of the bearing seat relative to the mounting part.

[0010] For example, in at least one embodiment of the present invention, a pinch roller device for preventing slippage of oil-coated strip steel is provided, which further includes: A cleaning ring is sleeved on the outer periphery of the rubber idler roller. The inner peripheral wall of the cleaning ring is in contact with the outer peripheral wall of the rubber idler roller and can slide along the axial direction of the rubber idler roller. It is used to scrape off the anti-rust oil adhering to the surface of the rubber idler roller.

[0011] For example, in a pinch roller device for preventing slippage of oil-coated strip steel provided in at least one embodiment of the present invention, the inner wall of the cleaning ring is provided with a flexible scraping ring, the inner diameter of the flexible scraping ring is smaller than the outer diameter of the rubber idler roller, the inner diameter of the cleaning ring is larger than the outer diameter of the rubber idler roller, and the cleaning ring is arranged to achieve elastic contact with the outer peripheral wall of the rubber idler roller through the flexible scraping ring.

[0012] For example, in a pinch roller device for preventing slippage of oil-coated strip steel provided in at least one embodiment of the present invention, the rubber roller includes a rod body and a rubber roller surface sleeved in the middle of the rod body, and the two ends of the rod body are respectively rotatably connected to the two bearing seats; The mounting part is provided with a receiving groove, which is located between the bearing seat and the rubber roller surface, and is used to receive the cleaning ring.

[0013] For example, in a pinch roller device for preventing slippage of oil-coated strip steel provided in at least one embodiment of the present invention, the outer peripheral wall of the cleaning ring is provided with a gripping part, and the mounting part is provided with a snap-fit ​​mechanism. The snap-fit ​​mechanism can cooperate with the gripping part to fix the circumferential position of the cleaning ring.

[0014] The beneficial effects of the embodiments of this utility model are as follows: In this invention, the height setting of the rubber idler rollers ensures that the strip steel is supported by the rubber idler rollers in the non-clamping state, preventing the continuous adhesion of anti-rust oil on the strip steel surface to the lower clamping rollers. This reduces oil accumulation on the lower clamping roller surface from the source, maintaining its friction coefficient. The hinged drive structure of the swing plate and the telescopic drive component utilizes the lever principle to achieve smooth lifting and lowering of the upper clamping rollers, ensuring the parallelism of the upper and lower clamping rollers when clamping the strip steel. This results in uniform force on the strip steel, preventing deviation or slippage caused by uneven clamping force. The controllable extension and retraction of the telescopic drive component allows for precise adjustment of the clamping space to adapt to the clamping requirements of strip steel of different thicknesses. Simultaneously, in the non-clamping state, the upper clamping rollers can be completely detached from the strip steel, further reducing equipment wear. The synergistic effect of the rubber idler rollers and the swing drive mechanism forms a working mode of "disengagement during non-clamping + precise drive during clamping," preventing slippage of the lower clamping rollers due to oil accumulation and ensuring the stability of strip steel clamping. This improves the accuracy and production efficiency of the shearing process, reduces the risk of strip steel surface damage, and lowers equipment maintenance costs. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model, the accompanying drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are merely some exemplary embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the content of the exemplary embodiments of this utility model and these drawings without any creative effort.

[0016] Figure 1 This is a schematic diagram of a pinch roller device for preventing slippage of oil-coated strip steel in one embodiment of the present invention. Figure 2 for Figure 1 Enlarged view of point A in the middle; Figure 3 for Figure 2 Enlarged view of section B in the middle.

[0017] In the diagram: 1. Mounting frame; 2. Lower clamping roller; 3. Upper clamping roller; 4. Rubber idler roller; 5. Swinging plate; 6. Telescopic drive component; 11. Mounting part; 7. Bearing seat; 71. Protrusion; 111. Limiting plate; 112. Limiting bolt; 72. Limiting screw; 8. Cleaning ring; 81. Flexible scraper ring; 41. Rod body; 42. Rubber roller surface; 113. Receiving groove; 82. Grip part; 114. Snap-fit ​​mechanism. Detailed Implementation The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit its scope.

[0018] To keep the drawings concise, each drawing only schematically shows the parts relevant to the disclosure; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of components with the same structure or function is schematically shown, or only one is labeled. In this document, "one" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."

[0019] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0020] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0021] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0022] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0023] like Figures 1-2 As shown, this invention illustrates a pinch roller device for preventing slippage of oil-coated steel strip in one embodiment of the present invention. It is used for transitioning and conveying steel strip to a shearing device and includes a mounting frame 1, a lower pinch roller 2, an upper pinch roller 3, a rubber idler roller 4, a swing plate 5, and a telescopic drive component 6. The mounting frame 1 has a frame structure and is fixed to the loading side of the shearing device by bolts. The lower pinch roller 2 is rotatably connected to both sides of the mounting frame 1 via bearings, with its axis perpendicular to the steel strip conveying direction. The upper pinch roller 3 is located directly above the lower pinch roller 2, and its two ends are rotatably connected to two swing plates 5 via bearings. The two swing plates 5 are symmetrically arranged and hinged to the top ends of both sides of the mounting frame 1 by pins. The cylinder body of the telescopic drive component 6 (such as a pneumatic or hydraulic cylinder) is fixed to the top beam of the mounting frame 1 via a hinge seat, and the end of the piston rod is hinged to the swing plate 5 by a pin, driving the swing plate 5 to swing around the hinge point, thereby raising and lowering the upper pinch roller 3, creating an adjustable pinching space between the upper pinch roller 3 and the lower pinch roller 2. The rubber idler roller 4 is rotatably connected to the side of the mounting frame 1 away from the shearing device. It is mounted on the mounting parts 11 on both sides of the mounting frame 1 through the bearing seat 7. The upper end of its roller surface is higher than the upper end of the roller surface of the lower clamping roller 2. When the strip steel is conveyed to the device, the rubber idler roller 4 supports the strip steel so that it is disengaged from the lower clamping roller 2. Only when clamping is the upper clamping roller 3 descends and clamps the strip steel with the lower clamping roller 2.

[0024] This device, through the height setting of the rubber idler roller 4, ensures that the strip steel is supported by the rubber idler roller 4 in the non-clamping state, preventing the continuous adhesion of anti-rust oil on the surface of the strip steel to the lower clamping roller 2, thereby reducing oil accumulation on the surface of the lower clamping roller 2 and maintaining its friction coefficient. The hinged drive structure of the swing plate 5 and the telescopic drive component 6 utilizes the lever principle to achieve smooth lifting and lowering of the upper clamping roller 3, ensuring the parallelism of the upper clamping roller 3 and the lower clamping roller 2 when clamping the strip steel, making the strip steel subjected to uniform force, and avoiding deviation or slippage caused by uneven clamping force. The controllable extension and retraction of the telescopic drive component 6 can precisely adjust the clamping space to adapt to the clamping requirements of strip steel of different thicknesses. At the same time, in the non-clamping state, the upper clamping roller 3 can be completely detached from the strip steel, further reducing equipment wear. The synergistic effect of the rubber idler roller 4 and the swing drive mechanism forms a working mode of "disengagement during non-clamping and precise drive during clamping". This not only prevents the slippage of the lower clamping roller 2 due to the accumulation of oil, but also ensures the stability of strip clamping, thereby improving the accuracy and production efficiency of the shearing process and reducing the risk of strip surface damage and equipment maintenance costs.

[0025] like Figures 2-3 As shown, L-shaped mounting portions 11 are respectively provided at both ends of the mounting frame 1 on the side away from the shearing device. The horizontal section of the mounting portion 11 extends upward to form a support plane, on which a vertical sliding groove is formed. The journals at both ends of the rubber roller 4 are rotatably connected to two bearing seats 7 through bearings. The bottom of the bearing seat 7 is provided with a slider that matches the sliding groove. The slider is embedded in the sliding groove to form a vertical sliding guide structure. The side of the bearing seat 7 has an outwardly extending protrusion 71. A limit plate 111 is fixed below the support plane of the mounting portion 11. A limit bolt 112 passes through the limit plate 111. The axis of the limit bolt 112 extends toward the protrusion 71, and its end can abut against the protrusion 71 to push the bearing seat 7 to rise and fall along the sliding groove. When it is necessary to adjust the height of the rubber idler roller 4, rotate the limit bolt 112. The end of the bolt presses against the protrusion 71, causing the bearing seat 7 to rise. Alternatively, after the bolt is loosened, the bearing seat 7 will fall under the action of gravity, thereby changing the height difference between the rubber idler roller 4 and the lower clamping roller 2, ensuring that the strip steel is disengaged from the lower clamping roller 2 when supported by the rubber idler roller 4.

[0026] The L-shaped mounting part 11 and the sliding block structure of the bearing seat 7 provide a height-adjustable mounting base for the rubber idler roller 4. The precise height adjustment of the rubber idler roller 4 is achieved through the abutting engagement of the limiting bolt 112 and the protrusion 71. This structure allows for flexible adjustment of the support height of the rubber idler roller 4 according to the strip thickness, ensuring that strips of different specifications can be supported by the rubber idler roller 4 and completely detached from the lower clamping roller 2 in the non-clamping state, preventing the adhering of anti-rust oil to the lower clamping roller 2. The guiding design of the sliding block and the groove ensures the stability of the lifting of the bearing seat 7, preventing deviation during adjustment, while the mechanical pressing method of the limiting bolt 112 makes the height adjustment controllable and repeatable. This combined structure improves the adaptability of the clamping roller device to different strip thicknesses, structurally cutting off the continuous contamination path of anti-rust oil to the lower clamping roller 2 in downstream processes, effectively maintaining the friction coefficient of the lower clamping roller 2, thus preventing strip slippage during start-up, and reducing the difficulty of equipment adjustment and maintenance costs caused by changes in strip specifications.

[0027] like Figures 2-3 As shown, in the pinch roller device, the side of the bearing housing 7 extends outward to form a rectangular protrusion 71. A limit plate 111 is fixed below the support plane of the mounting part 11. A limit bolt 112 passes through the limit plate 111. The bolt axis extends towards the protrusion 71 and the end is a hemispherical structure, which can abut against the protrusion 71 to push the bearing housing 7 up and down. At the same time, a limit screw 72 passes through the top of the bearing housing 7. Its axis is perpendicular to the support plane of the mounting part 11, and its end can abut against the upper surface of the mounting part 11. The mounting part 11 has a scale line at the corresponding position to mark the lifting position of the bearing housing 7. During adjustment, rotating the limit bolt 112 pushes the protrusion 71 to raise the bearing housing 7. After loosening the bolt, the bearing housing 7 descends under the action of gravity. With the limit screw 72 abutting against the mounting part 11 to limit the lowest position, the height difference is read through the scale line (for example, when the strip thickness is 2mm, adjust to the rubber idler roller 4 being 25mm higher than the lower pinch roller), ensuring that the strip is out of contact with the lower pinch roller 2.

[0028] The dual limiting structure of the limiting bolt 112 and the limiting screw 72 enables precise adjustment and reliable fixation of the height of the rubber idler roller 4. The hemispherical limiting bolt 112 reduces contact friction at its end, facilitating fine height adjustment, and the scale lines make the adjustment process visible, improving operational accuracy. The limiting screw 72 prevents the bearing seat 7 from descending excessively, forming upper and lower limits with the limiting bolt 112 to ensure the rubber idler roller 4 is always in an effective support position. This combined structure eliminates human adjustment errors through mechanical limiting, ensuring that the separation state of the strip from the lower clamping roller 2 is unaffected by equipment vibration or operational errors, continuously blocking the path of rust-preventive oil adhesion, maintaining the friction coefficient of the lower clamping roller 2, structurally eliminating the risk of slippage due to improper height adjustment, while also reducing maintenance frequency and improving equipment operational stability.

[0029] like Figures 2-3As shown, a cleaning ring 8 is fitted around the outer periphery of the rubber idler roller 4 of the pinch roller device, and a flexible scraper ring 81 is fixedly connected to the inner wall of the cleaning ring 8. The flexible scraper ring 81 is made of oil-resistant rubber, and its inner diameter is smaller than the outer diameter of the rubber idler roller 4, while the inner diameter of the cleaning ring 8 is larger than the outer diameter of the rubber idler roller 4. This allows the flexible scraper ring 81 to elastically deform and tightly adhere to the outer periphery of the rubber idler roller 4 when fitted. The outer periphery of the cleaning ring 8 is provided with a gripping part 82 (such as an annular protrusion), which facilitates the operator to slide the cleaning ring 8 back and forth along the axial direction of the rubber idler roller 4. When the cleaning ring 8 slides, the inner edge of the flexible scraper ring 81 continuously scrapes away the anti-rust oil adhering to the surface of the rubber idler roller 4. The scraped-off oil is collected in the groove of the cleaning ring 8, preventing the oil from re-adhering to the strip steel or the lower pinch roller 2.

[0030] The combined structure of the cleaning ring 8 and the flexible scraper ring 81 achieves active cleaning of the anti-rust oil on the surface of the rubber idler roller 4 through elastic contact and sliding design. The inner diameter of the flexible scraper ring 81 is smaller than the outer diameter of the rubber idler roller 4, ensuring that it fits tightly against the roller surface under elastic deformation. Even if there is slight wear on the surface of the rubber idler roller 4, it can maintain a good scraping effect and avoid the accumulation of oil stains that would reduce the friction coefficient of the rubber idler roller 4. The sliding characteristic of the cleaning ring 8 allows operators to clean it regularly without disassembling the equipment, improving maintenance convenience. The oil-resistant rubber material of the flexible scraper ring 81 is not prone to aging even after long-term contact with anti-rust oil, maintaining continuous scraping ability. This structure works in conjunction with the height adjustment design of the rubber idler roller 4 to form a dual anti-oil stain mechanism of "disengagement + active cleaning". It reduces the contact between the lower clamping roller 2 and the anti-rust oil, and avoids the accumulation of oil stains on the rubber idler roller 4 itself through active cleaning. This fundamentally maintains the frictional stability of the strip support surface and the drive surface, effectively preventing slippage, while reducing equipment maintenance costs and scrap rate.

[0031] like Figures 2-3 As shown, the rubber idler roller 4 of the pinch roller device consists of two metal rods 41 at both ends and a rubber roller surface 42 in the middle. The rubber roller surface 42 is fitted onto the middle of the rods 41 by an interference fit. The journals at both ends of the rods 41 are rotatably connected to the bearing seats 7. The mounting part 11 has receiving grooves 113 at both ends of the rubber roller surface 42. The receiving grooves 113 are located between the bearing seats 7 and the rubber roller surface 42. The width of the grooves matches the thickness of the cleaning ring 8, and the depth is sufficient to ensure that the rubber idler roller 4 does not affect the rotation after the cleaning ring 8 is embedded. The cleaning ring 8 is fitted onto the outer periphery of the rubber roller surface 42. Its inner wall fits against the rubber roller surface 42, and a gripping part 82 (such as an annular protrusion) is fixed on the outer periphery. The mounting part 11 has a snap-fit ​​mechanism 114 on its side. The snap-fit ​​mechanism 114 includes multiple slots distributed along the height direction. The shape of the slots matches the protrusion of the gripping part 82. When the cleaning ring 8 slides along the axial direction of the rubber roller 4, it can be embedded in the receiving groove 113 to avoid interference. After the protruding edge of the gripping part 82 is inserted into the groove, the circumferential position of the cleaning ring 8 is fixed, ensuring that the flexible scraper ring 81 continuously scrapes away oil stains along the axial direction.

[0032] The split structure of the rubber idler roller 4 (metal rod 41 + rubber roller surface 42) facilitates the individual replacement of worn rubber roller surface 42, reducing maintenance costs. The receiving groove 113 provides storage space for the cleaning ring 8, preventing it from interfering with other components when it slides to both ends, ensuring smooth cleaning operation. The cooperation between the gripping part 82 and the locking mechanism 114 can fix the circumferential position of the cleaning ring 8, preventing the scraping direction from shifting due to rotation during cleaning. Multiple slots can be used for targeted cleaning of areas with concentrated oil stains, improving cleaning efficiency. This combined structure, through optimized spatial layout and mechanical positioning design, enables the cleaning ring 8 to effectively scrape oil stains axially and maintain a stable scraping direction circumferentially. In conjunction with the height adjustment of the rubber idler roller 4 and the flexible scraping structure of the cleaning ring 8, it forms an oil stain prevention system that is "easy to maintain and more precise in cleaning," continuously maintaining the cleanliness of the rubber idler roller 4 and the lower clamping roller 2, fundamentally preventing conveying deviation and surface damage to the strip steel due to slippage, extending the service life of the equipment and reducing the frequency of maintenance.

[0033] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A pinch roll device for preventing slippage of oil-coated steel strip, used for transitioning and conveying steel strip to a shearing device, characterized in that, include: Mounting bracket (1), the mounting bracket (1) is used to be installed on the feeding side of the shearing device; The lower clamping roller (2) is rotatably connected to the mounting frame (1): The upper clamping roller (3) is vertically and rotatably arranged relative to the mounting frame (1) and is located above the lower clamping roller (2). A clamping space is formed between the upper clamping roller (3) and the lower clamping roller (2). A rubber roller (4) is rotatably connected to the mounting frame (1) and located on the side of the lower clamping roller (2) away from the shearing device. The upper end of the roller surface of the rubber roller (4) is higher than the upper end of the roller surface of the lower clamping roller (2) and is used to support the strip steel passing through the clamping space so that the strip steel is disengaged from the lower clamping roller (2).

2. The pinch roller device for preventing slippage of oil-coated strip steel according to claim 1, characterized in that, Two swing plates (5) are provided, and the two swing plates (5) are respectively hinged to the two ends of the mounting frame (1). The two ends of the upper clamping roller (3) are respectively rotatably connected to the two swing plates (5). Telescopic drive component (6), one end of which is hinged to the mounting frame (1) and the other end is hinged to the swing plate (5), is used to drive the swing plate (5) to swing, thereby driving the upper clamping roller (3) to rise and fall, so as to realize the clamping or releasing of the strip steel in the clamping space.

3. The pinch roller device for preventing slippage of oil-coated strip steel according to claim 1, characterized in that, The mounting frame (1) has mounting parts (11) at both ends on the side away from the shearing device, and the two ends of the rubber roller (4) are rotatably connected to two bearing seats (7) set on the mounting parts.

4. The pinch roller device for preventing slippage of oil-coated strip steel according to claim 3, characterized in that, The bearing housing (7) is vertically connected to the mounting part (11).

5. The pinch roller device for preventing slippage of oil-coated strip steel according to claim 3, characterized in that, The bearing housing (7) has a protrusion (71) on its side. The mounting part (11) has a limiting plate (111) located below the bearing housing (7). A limiting bolt (112) is provided on the limiting plate (111). The axis of the limiting bolt (112) extends toward the protrusion (71). The end of the limiting bolt (112) can abut against the protrusion (71) to push the bearing housing (7) to rise.

6. The pinch roller device for preventing slippage of oil-coated strip steel according to claim 3, characterized in that, A limiting screw (72) is provided on the bearing housing (7). The end of the limiting screw (72) can abut against the mounting part (11) to limit the lifting position of the bearing housing (7) relative to the mounting part (11).

7. The pinch roller device for preventing slippage of oil-coated strip steel according to claim 3, characterized in that, Also includes: Cleaning ring (8) is sleeved on the outer periphery of the rubber roller (4). The inner peripheral wall of the cleaning ring (8) is in contact with the outer peripheral wall of the rubber roller (4) and can slide along the axial direction of the rubber roller (4) to scrape off the anti-rust oil adhering to the surface of the rubber roller (4).

8. The pinch roller device for preventing slippage of oil-coated strip steel according to claim 7, characterized in that, The inner wall of the cleaning ring (8) is provided with a flexible scraper ring (81). The inner diameter of the flexible scraper ring (81) is smaller than the outer diameter of the rubber roller (4), and the inner diameter of the cleaning ring (8) is larger than the outer diameter of the rubber roller (4). The cleaning ring is arranged to achieve elastic contact with the outer peripheral wall of the rubber roller (4) through the flexible scraper ring (81).

9. The pinch roller device for preventing slippage of oil-coated strip steel according to claim 7, characterized in that, The rubber roller (4) includes a rod (41) and a rubber roller surface (42) sleeved in the middle of the rod (41). The two ends of the rod (41) are rotatably connected to the two bearing seats (7). The mounting part (11) is provided with a receiving groove (113), which is located between the bearing seat (7) and the rubber roller surface (42). The receiving groove (113) is used to receive the cleaning ring (8).

10. A pinch roller device for preventing slippage of oil-coated strip steel according to claim 7, characterized in that, The outer peripheral wall of the cleaning ring (8) is provided with a gripping part (82), and the mounting part (11) is provided with a snap-fit ​​mechanism (114). The snap-fit ​​mechanism (114) can cooperate with the gripping part (82) to fix the circumferential position of the cleaning ring (8).

Images