Strip steel pinch roll device

Abstract

The utility model discloses a strip steel pinch roll device which comprises a rack, a swing frame, a pinch roll, a steering roll, a first transmission device and a second transmission device. The swing frame is arranged on the machine frame in an up-down swing mode, and the pinch roll transversely extends, is rotationally arranged on the swing frame and swings up and down along with the swing frame. The turning roller is parallel to the pinch roller, located above the pinch roller and rotationally arranged on the rack, a pinch opening is formed between the turning roller and the pinch roller and used for allowing the strip to penetrate through, and when the strip penetrates through the turning roller, the pinch roller swings up and down along with the swing frame, so that the pinch opening becomes smaller, the strip is clamped, or the pinch opening becomes larger, and the strip is loosened; the first transmission device comprises a first motor and a universal connecting shaft, and the first motor is fixedly arranged and connected with the pinch roll through the universal connecting shaft so as to drive the pinch roll to rotate around the shaft; the second transmission device is connected with the steering roller and used for driving the steering roller to rotate around the shaft; abrasion caused by the fact that the strip exerts pressure on the pinch roll is avoided, the service life of the pinch roll is prolonged, and the surface quality of the strip is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of cold rolling equipment, in particular to a strip steel pinch roller device. Background Art

[0002] The pinch roller device usually includes an upper pinch roller and a lower pinch roller, and the strip passes between the upper and lower pinch rollers to facilitate the transmission of the strip. When the pinch roller device clamps the strip, it can achieve clamping and positioning of the strip to facilitate processing of the strip, such as shearing or winding. In the existing pinch roller device, the lower pinch roller usually rotates around the axis in a fixed setting, and the upper pinch roller rises and falls. The upper pinch roller rises and falls to change the distance between the upper pinch roller and the lower pinch roller to achieve clamping or loosening of the strip. When the strip is clamped, the strip is subjected to shearing or stretching forces during processing, which generates corresponding reverse forces. When the processing is completed, the reaction force generated on the strip has not been released. At this time, the upper pinch roller rises, and the reaction force generated by the strip will press the lower pinch roller, which may easily cause problems such as straining the lower pinch roller or scratching the surface of the strip. Utility Model Content

[0003] The utility model aims to provide a strip steel pinch roller device to overcome the problem that the lower pinch roller is easily damaged.

[0004] To achieve the above-mentioned purpose, the solution of the utility model is: a strip steel pinch roller device, comprising a frame, a swing frame, a pinch roller, a steering roller, a first transmission device and a second transmission device;

[0005] The swing frame is swingably arranged on the frame, and the pinch roller extends transversely and is rotatably arranged on the swing frame to swing up and down with the swing frame;

[0006] The steering roller is parallel to the pinch roller and is located above the pinch roller. It is rotatably arranged on the frame. A pinch opening is formed between the steering roller and the pinch roller for the strip to pass through. When the strip passes through, the pinch roller swings up with the swing frame to make the pinch opening smaller and clamp the strip, or the pinch roller swings down with the swing frame to make the pinch opening larger and loosen the strip.

[0007] The first transmission device includes a first motor and a universal joint shaft, the first motor is connected to the pinch roller through the universal joint shaft to drive the pinch roller to rotate around the axis, and the first motor is fixedly arranged on the outside of the frame;

[0008] The second transmission device is connected to the steering roller and is used for driving the steering roller to rotate around the axis.

[0009] Furthermore, the swing frame is connected to the swing driving mechanism, the swing frame is pivotally connected to the frame, and the swing driving mechanism is used to drive the swing frame to swing up and down around the pivot axis.

[0010] Furthermore, a rotating shaft is arranged on the swing frame, the rotating shaft runs through one end of the swing frame horizontally, the pinch roller is installed at the other end of the swing frame, and both ends of the rotating shaft are pivotally connected to the frame in the horizontal direction.

[0011] Furthermore, the swing drive mechanism includes a hydraulic cylinder and a swing arm;

[0012] The bottom end of the hydraulic cylinder is hinged on the frame, and the top end of the hydraulic cylinder is the telescopic end, which is connected to the bottom end of the swing arm, and the top end of the swing arm is hinged to the swing frame, so that when the telescopic end of the hydraulic cylinder is extended, the swing arm is driven upward to drive the swing frame to swing upward, or when the telescopic end of the hydraulic cylinder is retracted, the swing arm is driven downward to drive the swing frame to swing downward.

[0013] Furthermore, the universal joint includes a telescopic rod and two universal shafts, which are respectively located at both ends of the universal joint. One of the universal shafts is used to connect with the transmission shaft of the first motor, and the other universal shaft is used to connect with the roller shaft of the clamping roller. The telescopic rod is formed in the middle of the universal joint.

[0014] Furthermore, it also includes a scraper assembly, which includes a scraper mounting frame and a scraper;

[0015] The scraper mounting frame is pivotally connected to the top side of the frame and is located outside the pinching port. The scraper is mounted at the bottom end of the scraper mounting frame to rotate relative to the frame with the scraper mounting frame and fit against the outer surface of the guide roller.

[0016] Furthermore, the second transmission device includes a second motor and a connecting shaft, one end of the connecting shaft is connected to the second motor, and the other end is connected to the steering roller shaft.

[0017] Furthermore, a flying shear is arranged behind the pinching port, so that after the strip passes through the pinching port and enters the flying shear, the flying shear is used to cut the strip.

[0018] After adopting the above scheme, the beneficial effects of the utility model are:

[0019] The swing frame is set on the frame through up and down swinging, the pinch roller is rotatably set on the swing frame and can swing up and down with the swing frame, the steering roller is parallel to the pinch roller, is located above the pinch roller, and is rotatably set on the frame; a pinch opening can be formed between the steering roller and the pinch roller for the strip to pass through, when the strip is transported to a predetermined position for shearing or other processing, the pinch roller is swung up with the swing frame to make the pinch opening smaller and clamp the strip, when the processing is completed, the pinch roller is swung down with the swing frame to make the pinch opening larger, the strip moves downward with the pinch roller, and the pressure is released at the same time, so as to avoid applying pressure to the pinch roller, extend the service life of the pinch roller, and ensure the surface quality of the strip. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 The utility model is a schematic structural diagram of the connection between the steering roller and the pinch roller and the transmission device.

[0021] Figure 2 It is a side structural schematic diagram of the utility model.

[0022] Description of labels:

[0023] 1-frame, 2-swing frame, 3-pinch roller, 4-steering roller, 5-first transmission device, 6-and second transmission device, 7-pinch port, 8-strip, 9-swing drive mechanism, 10-scraper assembly, 11-scraper mounting frame, 12-scraper, 13-flying shear, 21-rotating shaft, 51-first motor, 52-universal joint shaft, 53-telescopic rod, 54-universal shaft, 61-second motor, 62-connecting shaft, 91-hydraulic cylinder, 92-swing arm. DETAILED DESCRIPTION

[0024] The present invention is described in detail below with reference to the accompanying drawings and specific embodiments.

[0025] In the claims, specification and the above-mentioned drawings of the utility model, unless otherwise explicitly defined, directional words, such as the use of terms such as "center", "lateral", "longitudinal", "horizontal", "vertical", "top", "bottom", "inside", "outside", "up", "down", "front", "back", "left", "right", "clockwise", "counterclockwise" and the like to indicate directions or positional relationships are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation or be constructed and operated in a specific orientation, so they cannot be understood as limiting the specific protection scope of the utility model.

[0026] The utility model provides a strip steel pinch roller device, such as Figure 1 and Figure 2 As shown, it includes a frame 1, a swing frame 2, a clamping roller 3, a steering roller 4, a first transmission device 5 and a second transmission device 6.

[0027] Focus on combination Figure 2 , the swing frame 2 is swingably arranged on the frame 1, the pinch roller 3 extends horizontally and is rotatably arranged on the swing frame 2 so as to swing up and down with the swing frame 2; the steering roller 4 is parallel to the pinch roller 3 and is located above the pinch roller 3, and is rotatably arranged on the frame 1, and a pinch opening 7 is formed between the steering roller 4 and the pinch roller 3 for the strip 8 to pass through. Since the strip 8 is in a roll shape, the steering roller 4 is located above the strip 8, which is conducive to achieving a constant wrap angle of the strip 8; when the strip 8 passes through, the pinch roller 3 is swung up with the swing frame 2 to reduce the pinch opening 7 and clamp the strip 8, or the pinch roller 3 is swung down with the swing frame 2 to enlarge the pinch opening 7 and loosen the strip 8; Figure 2 Specifically, two states of the swinging of the pinch roller 3 are shown, in which one state is that the pinch roller 3 and the guide roller 4 clamp the strip 8, and the other state is that the pinch roller 3 loosens the strip 8 as the swing frame 2 swings downward.

[0028] In this specific embodiment, the first transmission device 5 includes a first motor 51 and a universal joint 52. The first motor 51 is connected to the pinch roller 3 through the universal joint 52 to drive the pinch roller 3 to rotate around the axis. The first motor 51 is fixedly arranged on the outside of the frame 1; the second transmission device 6 is connected to the steering roller 4, and is used to drive the steering roller 4 to rotate around the axis. Specifically, a mounting frame is also provided on the outside of the frame 1, and the mounting frame is used to fix the first motor 51 and the second motor 61.

[0029] In order to ensure that the first motor 51 can drive the pinch roller 3 to rotate around the axis when the pinch roller 3 swings with the swing frame 2, the universal joint 52 specifically includes a telescopic rod 53 and two universal shafts 54. The two universal shafts 54 are respectively located at both ends of the universal joint 52. One of the universal shafts 54 is used to connect with the transmission shaft of the first motor 51, and the other universal shaft 54 ​​is used to connect with the roller shaft of the pinch roller 3. The telescopic rod 53 is formed in the middle of the universal joint 52. The first motor 51 is specifically a transmission gear motor, which has high efficiency, can meet the requirements of different torques and speeds, and has high stability.

[0030] In this specific embodiment, the second transmission device 6 includes a second motor 61 and a connecting shaft 62. One end of the connecting shaft 62 is connected to the second motor 61, and the other end is connected to the roller shaft of the steering roller 4. The second motor 61 can be any existing drive motor without specific limitation.

[0031] In this specific embodiment, the swing frame 2 is connected to the swing drive mechanism 9, and the swing frame 2 is pivotally connected to the frame 1. The swing drive mechanism 9 is used to drive the swing frame 2 to swing up and down around the pivot axis. The swing drive mechanism 9 is used to realize the automatic up and down swing of the swing frame 2, and there is no need to manually drive the swing frame 2 to swing.

[0032] In this specific embodiment, a rotating shaft 21 is installed on the swing frame 2, and both ends of the rotating shaft 21 are pivoted to the frame 1 along the horizontal direction, so that the swing frame 21 is pivoted to the frame 1, so that when the swing frame 2 swings, it swings up and down around the rotating shaft 21; specifically, the rotating shaft 21 horizontally passes through one end of the swing frame 2, and the clamping roller 3 is installed at the other end of the swing frame 2, and the axis of the rotating shaft 21 is arranged parallel to the axis of the clamping roller 3, and the swing frame 2 specifically swings up and down around the rotating shaft 21.

[0033] In this specific embodiment, the swing drive mechanism 9 includes a hydraulic cylinder 91 and a swing arm 92; the bottom end of the hydraulic cylinder 91 is hinged on the frame 1, the top end of the hydraulic cylinder 91 is a telescopic end, the telescopic end is connected to the bottom end of the swing arm 92, and the top end of the swing arm 92 is hinged to the swing frame 2, so that when the telescopic end of the hydraulic cylinder 91 is extended, the swing arm 92 is driven upward to drive the swing frame 2 to swing upward, or when the telescopic end of the hydraulic cylinder 91 is retracted, the swing arm 92 is driven downward to drive the swing frame 2 to swing downward.

[0034] In this specific embodiment, a scraper assembly 10 is also included, and the scraper assembly 10 includes a scraper mounting frame 11 and a scraper 12; the scraper mounting frame 11 is pivotally connected to the top side of the frame 1, and can swing relative to the frame 1. It is located outside the clamping port 7, specifically on the side of the guide roller 4. The scraper 12 is installed at the bottom end of the scraper mounting frame 11, so that it rotates with the scraper mounting frame 11 relative to the frame 1 and fits the outer surface of the guide roller 4, and is used to clean the outer surface of the guide roller 4 to prevent impurities on the guide roller 4 from scratching the surface of the strip 8 when the surface of the strip 8 passes through the clamping port 7 for clamping, thereby affecting the surface quality of the strip 8.

[0035] In this specific embodiment, a flying shear 13 is arranged behind the pinching port 7 so that the flying shear 13 is used to cut the strip 8 after the strip passes through the pinching port 7 and enters the flying shear 13 .

[0036] The above description is only a preferred embodiment of the present utility model and is not a limitation on the design of the present case. Any equivalent changes made based on the key design of the present case shall fall within the protection scope of the present case.

Claims

1. A strip steel pinch roller device, characterized in that: It comprises a frame (1), a swing frame (2), a pinch roller (3), a steering roller (4), a first transmission device (5) and a second transmission device (6); The swing frame (2) is arranged on the frame (1) to swing up and down, and the pinch roller (3) extends horizontally and is rotatably arranged on the swing frame (2) to swing up and down with the swing frame (2); The steering roller (4) is parallel to the pinch roller (3) and is located above the pinch roller (3). The steering roller (4) and the pinch roller (3) are rotatably arranged on the frame (1). A pinch opening (7) is formed between the steering roller (4) and the pinch roller (3) for allowing the strip (8) to pass through. When the strip (8) passes through, the pinch roller (3) swings up with the swing frame (2) to reduce the pinch opening (7) and clamp the strip (8), or the pinch roller (3) swings down with the swing frame (2) to enlarge the pinch opening (7) and loosen the strip (8). The first transmission device (5) comprises a first motor (51) and a universal joint shaft (52); the first motor (51) is connected to the pinch roller (3) via the universal joint shaft (52) to drive the pinch roller (3) to rotate around the axis; the first motor (51) is fixedly arranged on the outside of the frame (1); The second transmission device (6) is connected to the steering roller (4) and is used to drive the steering roller (4) to rotate around the axis.

2. The strip steel pinch roller device according to claim 1, characterized in that: The swing frame (2) is connected to a swing driving mechanism (9), the swing frame (2) is pivotally connected to the frame (1), and the swing driving mechanism (9) is used to drive the swing frame (2) to swing up and down around the pivot axis.

3. The strip steel pinch roller device according to claim 2, characterized in that: The swing frame (2) is provided with a rotating shaft (21), the rotating shaft (21) laterally passes through one end of the swing frame (2), the pinch roller (3) is installed at the other end of the swing frame (2), and the two ends of the rotating shaft (21) are respectively pivotally connected to the frame (1) in the laterally direction.

4. The strip steel pinch roller device according to claim 2, characterized in that: The swing drive mechanism (9) comprises a hydraulic cylinder (91) and a swing arm (92); The bottom end of the hydraulic cylinder (91) is hinged on the frame (1), the top end of the hydraulic cylinder (91) is a telescopic end, the telescopic end is connected to the bottom end of a swing arm (92), and the top end of the swing arm (92) is hinged to the swing frame (2), so that when the telescopic end of the hydraulic cylinder (91) is extended, the swing arm (92) is driven upward to drive the swing frame (2) to swing upward, or when the telescopic end of the hydraulic cylinder (91) is retracted, the swing arm (92) is driven downward to drive the swing frame (2) to swing downward.

5. The strip steel pinch roller device according to claim 1, characterized in that: The universal joint (52) comprises a telescopic rod (53) and two universal shafts (54), the two universal shafts (54) being respectively located at two ends of the universal joint (52), one of the universal shafts (54) being used to connect with the transmission shaft of the first motor (51), and the other universal shaft (54) being used to connect with the roller shaft of the pinch roller (3), and the telescopic rod (53) being formed in the middle of the universal joint (52).

6. The strip steel pinch roller device according to claim 1, characterized in that: It also includes a scraper assembly (10), wherein the scraper assembly (10) includes a scraper mounting frame (11) and a scraper (12); The scraper mounting frame (11) is pivotally connected to the top side of the frame (1) and is located outside the clamping port (7). The scraper (12) is mounted on the bottom end of the scraper mounting frame (11) so as to rotate with the scraper mounting frame (11) relative to the frame (1) and fit against the outer surface of the steering roller (4).

7. The strip steel pinch roller device according to claim 1, characterized in that: The second transmission device (6) comprises a second motor (61) and a connecting shaft (62); one end of the connecting shaft (62) is connected to the second motor (61), and the other end is connected to the roller shaft of the steering roller (4).

8. The strip steel pinch roller device according to claim 1, characterized in that: A flying shear (13) is arranged behind the pinching port (7) so that after the strip (8) passes through the pinching port (7) and enters the flying shear (13), the flying shear (13) is used to cut the strip (8).

Images