Roller way slab centering device

Abstract

The utility model discloses a roller way slab centering device which comprises a first upper pushing arm, a second upper pushing arm, a first center gear, a second center gear, a first lower pushing arm, a second lower pushing arm, a first clamping arm and a second clamping arm, an upper rack is connected to the lower end of the upper pushing arm, a lower rack is connected to the upper end of the lower pushing arm, and the upper pushing arms are driven to move through a linear power device; the upper rack and the lower rack are meshed with the center gear to push the first clamping arm and the second clamping arm to move. One end of the clamping arm rotatably sleeves the pushing arm, the other end of the clamping arm is provided with a sliding groove, and the end part of the pushing arm extends into the sliding groove through a fixedly connected pin shaft and is in sliding connection with the sliding groove in the conveying direction of the roller way. Under the condition that no incoming material information exists, the clamping arms can be controlled to move inwards by the corresponding distance by detecting and calculating the specification information of the plate blank, and accurate centering operation is achieved. And only the space of a single-side roller way is occupied, so that the occupied space is reduced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the billet detection technical field, specifically, relate to a roller way billet centering device. BACKGROUND

[0002] Rolling mill is widely used in metal processing industry, can be thick plate rolling into the required sheet, billet rolling process is usually first in the heating furnace temperature to the required rolling temperature, then through the roller into the roughing descaling machine to deal with the scale produced by the billet, then into the roughing rolling mill to the width and thickness of the strip steel rolling, again by roller to the finishing descaling machine to deal with the scale produced by the strip steel surface, into the finishing rolling mill to the thickness and width of the strip steel more precise rolling, the strip steel by roller through the layer cooling to the surface temperature before winding strict control, into the coiler to become the steel coil finally bale, number spraying into the volume storage package. In the process of conveying between each device through the roller, the billet should be kept in the center of the roller, that is, the center line of the billet is aligned with the center line of the roller.

[0003] However, the applicant found that the current passive centering scheme is to set fixed guard plates on both sides of the roller, which has the disadvantage that the center line of the billet cannot be adjusted to align with the center line of the roller according to different billet widths. Or also often use double-sided push rod type scheme, through the oil cylinder to push the push rod on both sides of the roller for centering, which has the disadvantage that oil cylinders and push rods need to be set on both sides of the roller, resulting in a large space occupied on both sides of the roller.

[0004] Therefore, it is necessary to develop a centering structure that can adjust the centering of the billet according to different billet widths and reduce the occupied space. UTILITY MODEL CONTENTS

[0005] To solve the above problems, the present application provides a roller way billet centering device, comprising:

[0006] A first base is provided with a first linear power device,

[0007] A second base is provided with a second linear power device,

[0008] A first push-up arm is connected to the output end of the first linear power device, and the linear driving direction of the first linear power device is horizontally perpendicular to the center line of the roller;

[0009] A second push-up arm is connected to the output end of the second linear power device;

[0010] A first central gear is installed on the first base, and a horizontal first upper rack is fixedly connected to the lower end of the first upper push arm and engaged with the first central gear,

[0011] A second central gear is installed on the second base, and a horizontal second upper rack is fixedly connected to the lower end of the second upper push arm and engaged with the second central gear,

[0012] A first lower push arm is fixedly connected with a horizontal first lower rack at the upper end of the first lower push arm, and the first lower rack is engaged with the first central gear,

[0013] A second lower push arm is fixedly connected with a horizontal second lower rack at the upper end of the second lower push arm, and the second lower rack is engaged with the second central gear,

[0014] A first clamping arm is rotatably sleeved on the first upper push arm at one end and slidably connected with the end of the second upper push arm along the roller conveying direction at the other end;

[0015] A second clamping arm is rotatably sleeved on the first lower push arm at one end and slidably connected with the end of the second lower push arm along the roller conveying direction at the other end,

[0016] The slab centering device further comprises a grating sensor and an encoder for detecting the slab length;

[0017] The slab centering device further comprises a pair of laser range finders respectively arranged on both sides of the roller for detecting the slab width.

[0018] Optionally, a pin shaft is fixedly connected to the first upper push arm, one end of the first clamping arm is rotatably sleeved on the pin shaft, a first sliding groove is arranged at the other end of the first clamping arm, the end of the second upper push arm extends into the first sliding groove, a first sliding block is mounted on the end of the second upper push arm, the first sliding block comprises a first sliding plate and a first bolt, the edge of the first sliding plate is lapped on the top edge of the first sliding groove, and the first bolt fixedly connects the first sliding plate with the second upper push arm, so that the second upper push arm can slide in the first sliding groove along the roller conveying direction;

[0019] A pin shaft is fixedly connected to the first lower push arm, one end of the second clamping arm is rotatably sleeved on the pin shaft, a second sliding groove is arranged at the other end of the second clamping arm, the end of the second lower push arm extends into the second sliding groove, a second sliding block is mounted on the end of the second lower push arm, the second sliding block comprises a second sliding plate and a second bolt, the edge of the second sliding plate is lapped on the top edge of the second sliding groove, and the second bolt fixedly connects the second sliding plate with the second lower push arm, so that the second lower push arm can slide in the second sliding groove along the roller conveying direction.

[0020] Optionally, the second upper pushing arm has a gap with the first sliding groove in the direction perpendicular to the conveying direction of the roller table, and the second lower pushing arm has a gap with the second sliding groove in the direction perpendicular to the conveying direction of the roller table.

[0021] Optionally, a wear sleeve is sleeved on the outer periphery of the end of the second upper pushing arm extending into the first sliding groove, and a wear sleeve is also sleeved on the outer periphery of the end of the second lower pushing arm extending into the second sliding groove.

[0022] Optionally, an upper guide hole with a horizontal axis is arranged on the first base, and one end of the first upper pushing arm is embedded in the upper guide hole; an upper guide hole with a horizontal axis is arranged on the second base, and one end of the second upper pushing arm is embedded in the upper guide hole.

[0023] A lower guide hole with a horizontal axis is further arranged on the first base, and one end of the first lower pushing arm is embedded in the lower guide hole; a lower guide hole with a horizontal axis is arranged on the second base, and one end of the second lower pushing arm is embedded in the lower guide hole.

[0024] Optionally, the longitudinal center line of the first base coincides with the center line of the adjacent roller on the roller table; and the longitudinal center line of the second base coincides with the center line of the adjacent roller on the roller table.

[0025] Optionally, the first linear power device and the second linear power device simultaneously and at the same speed push the first upper pushing arm and the second upper pushing arm.

[0026] Compared with the prior art, the present application has the following beneficial effects:

[0027] (1) The present application can set the action of the clamping arm according to the size of the produced slab, and can be applied to the centering of slabs of various sizes. Since the first clamping arm and the second clamping arm can be driven simultaneously by the linear power device, the synchronization of the clamping arm clamping the slab is improved.

[0028] (2) The present application can simultaneously drive the clamping arms on both sides of the roller table through the power device on one side of the roller table, which can reduce the floor area occupied by the power device.

[0029] (3) The present application can detect the size of the slab through the laser range finder and the grating sensor, and can center the slab according to the detected size. In the case where there is no incoming material information, that is, no three-dimensional size information of the slab, the centering operation can be automatically judged and executed.

[0030] (4) the other end of the clamping arm is in sliding connection with a push arm, and the different step caused by the different power of the two push arms can be compensated by rotating the one end of the clamping arm around a pin shaft of the push arm and sliding the first sliding block at the other end in a sliding groove, so that the relative distance of the two push arm pin shafts changes, the first clamping arm is not deformed, and the first clamping arm or the second clamping arm is not stuck.

[0031] (5) the slab can have a certain impact on the two clamping arms at the moment of contact with the clamping arms during movement on the roller way, especially when the slab is in an inclined state, the impact of the slab on the two clamping arms can cause the clamping arms to deform in front and back width, and the present application compensates and offsets the instantaneous impact by sliding the sliding block in the sliding groove of the clamping arm. BRIEF DESCRIPTION OF DRAWINGS

[0032] Figure 1 the side view of the roller way slab centering device.

[0033] Figure 2 the top view of the roller way slab centering device.

[0034] Figure 3 the front view of the roller way slab centering device.

[0035] Figure 4 the front view of the first clamping arm and the first sliding block.

[0036] Figure 5 the side view of the first clamping arm and the first sliding block.

[0037] FIG. 1 is a front view of the roller way slab centering device; FIG. 2 is a side view of the roller way slab centering device; FIG. 3 is a top view of the roller way slab centering device; FIG. 4 is a front view of the roller way slab centering device; FIG. 5 is a front view of the first clamping arm and the first sliding block; and FIG. 6 is a side view of the first clamping arm and the first sliding block. DETAILED DESCRIPTION

[0038] The technical scheme of the present application will be described clearly and completely below with reference to the drawings. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0039] In the description of the embodiments of the present application, it should be noted that, unless otherwise explicitly specified and limited, the terms "mounting", "connecting" should be understood in a broad sense, for example, "connecting" can be detachable connection, or can be non-detachable connection; can be direct connection, or can be indirect connection through intermediate medium. Among them, "fixed connection" refers to the relative position relationship after being connected with each other does not change. "Rotary connection" refers to the relative rotation after being connected with each other. The orientation terms mentioned in the embodiments of the present application, such as "upper", "lower", "inner", "outer" and the like, are only the direction of the reference drawings, therefore, the orientation terms used are for better, clearer illustration and understanding of the embodiments of the present application, and are not indicative or implied that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, therefore, it cannot be understood as a limitation on the embodiments of the present application. Among them, the integrated structure of two components obtained by the one-piece molding process refers to the process of forming one of the two components, the component is connected with the other component together, and the two components do not need to be connected together by reprocessing (such as bonding, welding, buckle connection, screw connection) mode.

[0040] The roll plate centering device of the embodiment, the driving structure is only installed on one side of the roll, which can greatly reduce the floor space occupied by the driving structure. And through the single-side driving of the two clamping arms, the synchronism of the clamping arms can be improved.

[0041] The roll plate centering device comprises a first base 1, a second base 11, a first linear power device 2, a second linear power device 21, a first push-up arm 3, a first center gear 4, a second center gear 41, a second push-up arm 31, a first push-down arm 5, a second push-down arm 51, a first clamping arm 6 and a second clamping arm 9.

[0042] Please refer to Figure 2 , the first base 1 and the second base 11 are fixedly installed on the ground foundation along the roll conveying direction, the distance between the first base 1 and the second base 11 is close to the average length of the plate blank. And preferably, the longitudinal center of the first base 1 coincides with the center line of the adjacent roller on the roll; the longitudinal center of the second base 11 coincides with the center line of the adjacent roller on the roll.

[0043] The first linear power device 2 is installed on the first base 1, which can be a hydraulic cylinder or a pneumatic cylinder, and its linear driving direction is horizontal and perpendicular to the center line of the roller way. The output end of the first linear power device 2 is fixedly connected with the first upper pushing arm 3, and can drive the first upper pushing arm 3 to move horizontally and linearly. The second linear power device 21 is installed on the second base 11, which can also be a hydraulic cylinder or a pneumatic cylinder. The output end of the second linear power device 21 is fixedly connected with the second upper pushing arm 31, and can drive the second upper pushing arm 31 to move horizontally and linearly in the same direction as the first upper pushing arm. The first linear power device 2 and the second linear power device 21 simultaneously and at the same speed push the first upper pushing arm 3 and the second upper pushing arm 31, so that the first clamping arm and the second clamping arm remain in a parallel state.

[0044] An upper guide hole with a horizontal axis is arranged on the first base 1, the cross section of the first upper pushing arm 3 is consistent with the shape and size of the upper guide hole, and one end of the first upper pushing arm 3 is embedded in the upper guide hole. Under the drive of the first linear power device 2, the first upper pushing arm 3 can slide in the upper guide hole while moving horizontally and linearly.

[0045] An upper guide hole with a horizontal axis is arranged on the second base 11, the cross section of the second upper pushing arm 31 is consistent with the shape and size of the upper guide hole, and one end of the second upper pushing arm 31 is embedded in the upper guide hole. Under the drive of the second linear power device 21, the second upper pushing arm 31 can slide in the upper guide hole while moving horizontally and linearly.

[0046] A first central gear 4 is installed on the first base 1 below the first upper pushing arm 3, which can rotate around its axis. A first upper rack 401 is fixedly connected to the lower end of the first upper pushing arm 3, and is engaged with the first central gear 4. Specifically, the first upper rack 401 and the first central gear have the same module, and the index line of the first upper rack 401 is tangent to the index circle of the first central gear. During the horizontal movement of the first upper pushing arm 3, the rack can drive the first central gear 4 to rotate. Figure 1 If the first linear power device 2 is extended, the first upper rack 401 moves to the right, so that the first central gear 4 rotates clockwise.

[0047] A second central gear (not shown) is installed on the second base 11 below the second upper pushing arm 31, which can rotate around its axis. A second upper rack (not shown) is fixedly connected to the lower end of the second upper pushing arm 31, and is engaged with the second central gear. Specifically, the second upper rack and the second central gear have the same module, and the index line of the second upper rack is tangent to the index circle of the second central gear. During the horizontal movement of the second upper pushing arm 31, the second upper rack can drive the second central gear to rotate.

[0048] It should be noted that the present application also does not exclude that only one linear power device is used to drive the first and second push-up arms 3 and 31 to move simultaneously, for example, only the first linear power device is installed on the first base 1, and the first and second push-up arms 3 and 31 are both fixedly connected to the output end of the first linear power device.

[0049] A lower guide hole with its axis horizontal is also arranged on the first base 1, the cross section of the first push-down arm 5 is consistent with the shape and size of the lower guide hole, one end of the first push-down arm 5 is embedded in the lower guide hole, and under the drive of the first linear power device 2, the first push-down arm 5 can slide in the lower guide hole while moving horizontally and linearly.

[0050] Similarly, a lower guide hole with its axis horizontal is arranged on the second base 11, the cross section of the second push-down arm 51 is consistent with the shape and size of the lower guide hole, one end of the second push-down arm 51 is embedded in the lower guide hole, and under the drive of the first linear power device 2, the second push-down arm 51 can slide in the lower guide hole while moving horizontally and linearly. Among them, the first and second push-down arms can pass through the roller way along the center line of the adjacent roller to the other side.

[0051] In addition, in order to give good support to the first and second push-up arms 3 and 31 and the first and second push-down arms 5 and 51, the first base 1 can include two support seats distributed on both sides of the axis of the first central gear 4, and the second base 11 can include two support seats distributed on both sides of the axis of the second central gear 41.

[0052] A first lower rack 501 is fixedly connected to the upper end of the first push-down arm 5, the first lower rack 501 is engaged with the first central gear 4, and during the rotation of the first central gear 4, the first lower rack 501 is pushed to move horizontally. A second lower rack is fixedly connected to the upper end of the second push-down arm 51, the second lower rack is engaged with the second central gear, and during the rotation of the second central gear, the second lower rack is pushed to move horizontally. Due to the above driving relationship, the moving direction of the first and second lower racks is opposite to that of the first and second upper racks.

[0053] The end of the first and second push-up arms 3 and 31 is connected with the first clamping arm 6, but the connection modes are different. One end of the first clamping arm 6 is movably sleeved on the first push-up arm 3, for example, a pin shaft is fixedly connected to the first push-up arm 3, and the one end of the first clamping arm 6 can be rotatably sleeved on the pin shaft. The other end of the first clamping arm 6 is slidably connected with the end of the second push-up arm 31 along the conveying direction of the roller way.

[0054] A first sliding groove 200 can be arranged at the other end of the first clamping arm 6, and a first sliding block 601 is arranged at the end of the second pushing arm 31 and is slidingly arranged in the first sliding groove 200. For example, as shown in Figure 4 is a front view of the first sliding block 601 and the first clamping arm 6, and a first sliding groove 200 is arranged on the first clamping arm 6, and the end of the second pushing arm 31 can extend into the first sliding groove 200 through a fixedly connected pin shaft. The first sliding block 601 includes a first sliding plate 602 and a first bolt 603, the edge of the first sliding plate 602 is arranged on the top edge of the first sliding groove 200, and the first bolt 603 fixedly connects the first sliding plate 602 and the pin shaft of the second pushing arm 31, so that the second pushing arm 31 can slide in the first sliding groove 200 relative to the first clamping arm 6 along the conveying direction of the roller. In addition, the second pushing arm 31 has a certain gap with the first sliding groove 200 in the direction perpendicular to the conveying direction of the roller, so that the first sliding block 601 has a certain horizontal rotation freedom, thereby avoiding the occurrence of a stuck situation.

[0055] Similarly, the first and second pushing arms 51 and the second clamping arm 9 also adopt the same connection mode, that is, one end of the second clamping arm 9 is movably sleeved on the first pushing arm 5, for example, a pin shaft is fixedly connected on the first pushing arm 5, and the one end of the second clamping arm 9 is rotatably sleeved on the pin shaft. The other end of the second clamping arm 9 is slidingly connected with the end of the second pushing arm 51 along the conveying direction of the roller. For specific connection mode, reference can be made to the connection mode of the second pushing arm and the first clamping arm as above, a second sliding groove is arranged at the other end of the second clamping arm, and the end of the second pushing arm can extend into the second sliding groove through a fixedly connected pin shaft, and a second sliding block is arranged at the end of the second pushing arm, the second sliding block includes a second sliding plate and a second bolt, the edge of the second sliding plate is arranged on the top edge of the second sliding groove, and the second bolt fixedly connects the second sliding plate and the pin shaft of the second pushing arm, so that the second pushing arm can slide in the second sliding groove relative to the second clamping arm along the conveying direction of the roller.

[0056] In addition, in order to improve the wear resistance, a first wear-resistant sleeve 604 can be sleeved on the outer periphery of the end of the second pushing arm 31, so as to improve the wear resistance. Similarly, a wear-resistant sleeve can also be sleeved on the outer periphery of the end of the second pushing arm 51.

[0057] The first clamping arm 6 and the second clamping arm 9 are parallel to each other in an initial state, the center line between the first clamping arm 6 and the second clamping arm 9 coincides with the center line of the roller way, and the maximum distance between the first clamping arm 6 and the second clamping arm 9 is greater than the slab width; the lower surface of the first clamping arm 6 and the second clamping arm 9 is slightly higher than the upper surface of the roller way, and the upper surface of the first clamping arm 6 and the second clamping arm 9 is slightly higher than the upper surface of the slab.

[0058] If the two pushing arms are not synchronized in power, the two ends of the first clamping arm cannot move synchronously, but since the other end of the first clamping arm is slidingly connected with the second pushing arm, for a small synchronization difference, the first clamping arm can be compensated by rotating one end of the clamping arm around a pushing arm pin shaft and sliding the first sliding block at the other end in the sliding groove, so that the relative distance between the two pushing arm pin shafts changes, and therefore the first clamping arm will not be deformed and will not be stuck. Similarly, the second clamping arm will not be deformed and will not be stuck.

[0059] Furthermore, when the slab moves on the roller way, the instant contact with the clamping arm can have a certain impact on the two clamping arms, especially when the slab is in an inclined state, the impact of the slab on the two clamping arms can cause the clamping arm to deform in a way that the front and rear widths are not the same, and the instant impact can be offset by the sliding of the sliding block in the sliding groove to prevent the clamping arm from deforming in a way that the front and rear widths are not the same.

[0060] Further, the slab centering device for roller way further comprises a grating sensor and an encoder for detecting the length of the slab, and the principle is to calculate the length of the slab by using the running time of the slab on the roller way provided with the encoder. The scale grating can be provided at the head and tail of the slab, and the grating reading head is installed on the roller way, and the encoder counting is started when the grating reading head detects the head of the slab, and the counting of the encoder is stopped when the grating reading head detects the tail of the slab.

[0061] Further, the slab centering device for roller way further comprises a pair of laser range finders for detecting the width of the slab. Specifically, the pair of laser range finders are arranged on the two sides of the roller way respectively, and the distance between the installation position and the corresponding side surface of the slab is detected respectively, so as to determine the width of the slab.

[0062] Of course, the present application can also have other various embodiments, and those skilled in the art can make various corresponding changes and modifications according to the present application without departing from the spirit and essence of the present application, but these corresponding changes and modifications all belong to the protection scope of the claims of the present application.

Claims

1. A slab centering device for a roller table, characterized in that The utility model relates to a kind of roll plate blank centering device, including: First pedestal, first linear power device is installed on it, Second pedestal, with the first pedestal is spaced along the direction of roller conveyor, second linear power device is installed on it, First push-up arm, it is connected in the output end of first linear power device, the linear drive direction of the first linear power device is horizontally perpendicular to the center line of roller, Second push-up arm, it is connected in the output end of second linear power device, First central gear, it is installed on first pedestal, horizontal first upper rack is fixedly connected in the lower end of first push-up arm, first upper rack is engaged with the first central gear, Second central gear, it is installed on second pedestal, horizontal second upper rack is fixedly connected in the lower end of second push-up arm, second upper rack is engaged with the second central gear, First push-down arm, horizontal first lower rack is fixedly connected in the upper end of first push-down arm, first lower rack is engaged with the first central gear, Second push-down arm, horizontal second lower rack is fixedly connected in the upper end of second push-down arm, second lower rack is engaged with the second central gear, First clamping arm, one end rotatably sleeved in first push-up arm, the other end is slidably connected with the end of second push-up arm along the direction of roller conveyor; Second clamping arm, one end rotatably sleeved in first push-down arm, the other end is slidably connected with the end of second push-down arm along the direction of roller conveyor, The roll plate blank centering device further includes a grating sensor and an encoder for detecting the length of the plate blank. The roll plate blank centering device further includes a pair of laser range finders respectively arranged on both sides of the roller conveyor for detecting the width of the plate blank.

2. The slab centering device according to claim 1, characterized in that A pin is fixedly connected to the first push-up arm, one end of the first clamping arm is rotatably sleeved on the pin, a first sliding groove is arranged at the other end of the first clamping arm, the end of the second push-up arm extends into the first sliding groove, a first sliding block is mounted at the end of the second push-up arm, the first sliding block includes a first sliding plate and a first bolt, the edge of the first sliding plate is lapped on the top edge of the first sliding groove, and the first bolt fixedly connects the first sliding plate and the second push-up arm, so that the second push-up arm can slide in the first sliding groove along the direction of roller conveyor. A pin is fixedly connected to the first push-down arm, one end of the second clamping arm is rotatably sleeved on the pin, a second sliding groove is arranged at the other end of the second clamping arm, the end of the second push-down arm extends into the second sliding groove, a second sliding block is mounted at the end of the second push-down arm, the second sliding block includes a second sliding plate and a second bolt, the edge of the second sliding plate is lapped on the top edge of the second sliding groove, and the second bolt fixedly connects the second sliding plate and the second push-down arm, so that the second push-down arm can slide in the second sliding groove along the direction of roller conveyor.

3. The slab centering device for a roller table according to claim 2, characterized in that The second push-up arm has a gap with the first sliding groove perpendicular to the direction of roller conveyor, and the second push-down arm has a gap with the second sliding groove perpendicular to the direction of roller conveyor.

4. The slab centering device for a roller table according to claim 2, characterized in that A wear-resistant sleeve is sleeved on the outer periphery of the end of the second push-up arm extending into the first sliding groove, and a wear-resistant sleeve is also sleeved on the outer periphery of the end of the second push-down arm extending into the second sliding groove.

5. The slab centering device for a roller table according to claim 1, characterized in that, An upper guide hole with horizontal axis is arranged on the first base, and one end of the first upper push arm is embedded in the upper guide hole; an upper guide hole with horizontal axis is arranged on the second base, and one end of the second upper push arm is embedded in the upper guide hole; A lower guide hole with horizontal axis is arranged on the first base, and one end of the first lower push arm is embedded in the lower guide hole; a lower guide hole with horizontal axis is arranged on the second base, and one end of the second lower push arm is embedded in the lower guide hole.

6. The slab centering device for a roller table according to claim 1, characterized in that The first base longitudinal center line coincides with the center line of the adjacent roller on the roller table; the second base longitudinal center line coincides with the center line of the adjacent roller on the roller table.

7. The slab centering device of claim 1, wherein, The first linear power device and the second linear power device simultaneously and at the same speed push the first upper push arm and the second upper push arm.

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