Manipulator and rotating steel conveying device and method

Abstract

The invention belongs to the technical field of steel plate rolling, and particularly relates to a manipulator and a rotating steel conveying device and method. The manipulator comprises a plurality of conical rollers, a plurality of flat rollers and a clamping structure; the conical rollers and the flat rollers are arranged in parallel in the direction perpendicular to the first direction, and the flat rollers are arranged on the two sides of all the conical rollers respectively. The holding and clamping structure comprises two clamping parts; the two clamping parts extend in the first direction and are arranged above the multiple conical rollers and the multiple flat rollers in the mode of being perpendicular to the first direction, and the two clamping parts can move in the opposite directions or away from each other. The first direction is the conveying direction of the steel plate. The device comprises a front steel holding part and a pre-rotating steel part, the front steel holding part and the steel pre-rotating part are arranged on the feeding side of the rolling mill and used for conveying steel plates to the rolling mill. The front steel holding part is connected with the feeding end of the rolling mill and located between the steel pre-rotating part and the rolling mill. The front steel holding part and the pre-rotating steel part both comprise the manipulator. The production cost is reduced, and the production efficiency and the product percent of pass are improved.

Description

Technical Field

[0001] This application belongs to the field of steel plate rolling technology, specifically relating to a pusher, a steel transfer conveying device and method. Background Technology

[0002] In the production of heavy plates, the transverse and longitudinal rolling method is commonly used. After the steel is transferred by a pusher device, it is transversely rolled to widen the plate and meet the required width, ensuring the finished product width. Simultaneously, pusher devices are also arranged before and after the rolling mill to clamp and center the steel plate before it is transported to the four-high rolling mill for rolling, ensuring the steel plate is centered on the mill's roller table and that it extends symmetrically. This process of transferring, clamping, transporting, and rolling a single steel plate requires more than ten round trips.

[0003] In existing technologies, firstly, when steel plates are fed into and out of the pusher devices, the height difference between the non-working and working surfaces of the tapered rollers causes significant impact on the input and output ends, easily leading to equipment accidents such as bearing damage and roller breakage. Secondly, before rolling, the steel plate needs to be transferred and clamped once on the pusher bed before the mill. Since this transfer process requires a long conveying distance, a transition roller table is needed between the mill and the pusher bed to provide sufficient space for the steel plate to enter the mill. This transport distance is relatively long, and the roller table in the mill area experiences wear to varying degrees, causing the steel plate to deviate during transport. The longer the distance from clamping on the pusher bed to the mill's bite point, the greater the deviation, resulting in a low product qualification rate. Thirdly, the transfer speed before the mill needs to be coordinated with the steel plate conveying speed, resulting in very low rolling efficiency. Furthermore, with the increasing demand for cross-rolled plates, this rolling method severely restricts production efficiency. Summary of the Invention

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art or related art, namely, the easy damage of the pusher assembly and the low production efficiency and low product qualification rate caused by unreasonable pusher settings.

[0005] In view of this, a first aspect of the present invention provides a pusher bed, which has flat rollers at the input and output ends as transition zones to avoid the impact of steel plates on the conical rollers.

[0006] A second aspect of the present invention provides a steel transfer conveying device that uses the aforementioned pusher for advance steel transfer and gapless steel clamping before the rolling mill, thereby improving steel transfer efficiency and avoiding the possibility of steel plates going astray.

[0007] A third aspect of the present invention provides a steel transfer and conveying method, which uses the above-mentioned steel transfer and conveying device to transfer and roll steel plates.

[0008] Specifically, the following technical solutions are included:

[0009] According to a first aspect of the present application, a pusher is provided, including a plurality of conical rollers, a plurality of flat rollers, and a clamping structure; the conical rollers and the flat rollers are all arranged parallel to each other perpendicular to a first direction, and the plurality of flat rollers are respectively arranged on both sides of all the conical rollers; the clamping structure includes two clamping parts; the two clamping parts extend along the first direction and are arranged perpendicular to the first direction above the plurality of conical rollers and the plurality of flat rollers, and the two clamping parts are capable of moving towards each other and away from each other; the first direction is the conveying direction of the steel plate.

[0010] Furthermore, the conical roller includes a working section and a non-working section arranged along the length direction; the cross-sectional diameter of the working section is larger than the cross-sectional diameter of the non-working section; the working section of the conical roller and the non-working section of the adjacent conical roller are arranged opposite to each other along the first direction.

[0011] Furthermore, the cross-sectional diameter of the flat roller is the average of the cross-sectional diameter of the working section and the cross-sectional diameter of the non-working section.

[0012] According to a second aspect of the present application, a steel transfer conveying device is provided, including a front steel clamping section and a pre-steel transfer section; both the front steel clamping section and the pre-steel transfer section are disposed on the feed side of the rolling mill for conveying steel plates to the rolling mill; the front steel clamping section is connected to the feed end of the rolling mill and is located between the pre-steel transfer section and the rolling mill; both the front steel clamping section and the pre-steel transfer section include a pusher as described in any of the above technical solutions.

[0013] Furthermore, it also includes a rear steel-holding section connected to the discharge end of the rolling mill, and the rear steel-holding section includes the pusher.

[0014] Furthermore, the adjacent conical rollers in the pre-rotation steel section rotate in opposite directions, while the flat roller rotates toward the first direction.

[0015] Furthermore, the conical roller and the flat roller in the front steel-holding section and the rear steel-holding section both rotate toward the first direction.

[0016] Furthermore, transition roller tables are provided between the front steel holding section and the pre-transfer steel section, as well as at the end of the rear steel holding section away from the rolling mill.

[0017] According to a third aspect of the embodiments of this application, a steel transfer conveying method is provided. The method uses a steel transfer conveying device as described in any of the above technical solutions to convey steel plates. The method includes: a pre-rotating steel section receiving the steel plate and driving the steel plate to rotate horizontally by 90°; two clamping parts of the pre-rotating steel section moving towards each other to push the steel plate to center in the forward direction; a front clamping steel section receiving the steel plate output from the pre-rotating steel section; and two clamping parts of the front clamping steel section moving towards each other to push the steel plate to center in the forward direction and input it into the rolling mill.

[0018] Furthermore, the method also includes: the rear steel-holding part receiving the steel plate output from the rolling mill; the two clamps of the rear steel-holding part moving towards each other to push the steel plate to be centered and output.

[0019] Compared with the prior art, the present invention has at least the following beneficial effects:

[0020] The pusher in this application uses a flat roller transition, avoiding the impact of the steel plate on the tapered roller. Simultaneously, the apparatus and method of this application utilize the characteristics of the pusher to rearrange the overall steel transfer conveying device. By advancing the steel transfer and using gapless steel clamping before the rolling mill, the steel transfer efficiency is improved, and the possibility of the steel plate going astray is avoided. This application extends the service life of the pusher, reduces production costs, and improves production efficiency and product qualification rate. Attached Figure Description

[0021] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of this application. In the drawings:

[0022] Figure 1 This is an overall structural diagram of the steel transfer conveying device according to an embodiment of this application;

[0023] Figure 2 This is a structural diagram of the pusher bed according to an embodiment of this application;

[0024] Figure 3 This is a schematic diagram of the structure of the conical roller and the flat roller in the embodiments of this application;

[0025] Figure 4 This is a flowchart illustrating the steel transfer process in an embodiment of this application.

[0026] The attached figures are labeled as follows:

[0027] 1-Conical roll; 11-Working section; 12-Non-working section; 13-Transition section; 2-Flat roll; 3-Clamping structure; 31-Clamping part; 4-Front clamping part; 5-Pre-turning part; 6-Rear clamping part; 7-Rolling mill; 71-Infeed end; 72-Outfeed end; 8-Steel plate; 9-Transition roller table. Detailed Implementation

[0028] To better understand the above technical solutions, the technical solutions of the embodiments of this application will be described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the embodiments of this application and the specific features in the embodiments are detailed descriptions of the technical solutions of the embodiments of this application, rather than limitations on the technical solutions of this application. In the absence of conflict, the embodiments of this application and the technical features in the embodiments can be combined with each other.

[0029] In view of this, a pusher bed is provided according to a first aspect of the embodiments of this application, such as Figure 2 As shown, it includes multiple conical rollers 1, multiple flat rollers 2, and a clamping structure 3; the conical rollers 1 and the flat rollers 2 are arranged parallel to each other perpendicular to the first direction, and the multiple flat rollers 2 are respectively arranged on both sides of all the conical rollers 2; the clamping structure 3 includes two clamping parts 31; the two clamping parts 31 extend along the first direction and are arranged perpendicular to the first direction above the multiple conical rollers 1 and the multiple flat rollers 2, and the two clamping parts 31 can move towards each other and away from each other; the first direction is the conveying direction of the steel plate 8.

[0030] Specifically, the conical roller 1 is used to convey the steel plate 8, but the surface of the conical roller 1 is not smooth, so the end of the steel plate 8 is prone to collision when it contacts the conical roller 1. The flat roller 2 has a smooth surface, which can smoothly transition the steel plate 8 onto the conical roller 1. When the steel plate 8 is entirely in the conical roller area, the two clamps 31 move towards each other, restricting the position of the steel plate 8 from both sides, so that the steel plate 8 is upright and centered on the roller conveyor. In a specific embodiment, there are 10 conical rollers 1, and 2 flat rollers 2 are respectively arranged on both sides of the conical roller 1. It should be noted that the number of conical rollers 1 and flat rollers 2 is not a limitation on the scope of protection of this application.

[0031] Furthermore, in one embodiment, such as Figure 2 , Figure 3 As shown, the conical roller 1 includes a working section 11 and a non-working section 12 arranged along the length direction; the cross-sectional diameter of the working section 11 is larger than the cross-sectional diameter of the non-working section 12; the working section 11 of the conical roller 1 and the non-working section 12 of the adjacent conical roller 1 are arranged opposite to each other along the first direction.

[0032] Specifically, when the steel plate 8 is located in the conical roller area, the bottom surface of the steel plate 8 can only contact the working surface 11 of the conical roller 1. Adjacent conical rollers 1 are staggered, such that one side of the steel plate 8 is supported by odd-numbered conical rollers 1, and the other side is supported by even-numbered conical rollers 1. When both odd-numbered and even-numbered conical rollers 1 rotate in the same direction, the steel plate 8 is conveyed unidirectionally; when odd-numbered conical rollers 1 rotate in one direction while even-numbered conical rollers 1 rotate in the opposite direction, the steel plate 8 rotates parallel to the horizontal plane.

[0033] Furthermore, in one embodiment, such as Figure 3 As shown, a transition section 13 is provided between the working section 11 and the non-working section 12, and the cross-sectional diameter of the transition section 13 increases in the direction from the non-working section 12 toward the working section 11.

[0034] Specifically, the transition section 13 enables a smooth transition between the working section 11 and the non-working section 12, preventing direct collisions with other components during operation.

[0035] Furthermore, in one embodiment, the cross-sectional diameter of the flat roller 2 is the average of the cross-sectional diameter of the working section 11 and the cross-sectional diameter of the non-working section 12.

[0036] Specifically, the size setting of the flat roller 2 ensures that the steel plate 8 transitions to the conical roller area in the smoothest way.

[0037] According to a second aspect of the embodiments of this application, a steel transfer conveying device is provided, such as... Figure 1 As shown, it includes a front steel-holding section 4 and a pre-transfer steel section 5; both the front steel-holding section 4 and the pre-transfer steel section 5 are located on the feeding side of the rolling mill 7 and are used to feed steel plates 8 to the rolling mill 7; the front steel-holding section 4 is connected to the feeding end 71 of the rolling mill 7 and is located between the pre-transfer steel section 5 and the rolling mill 7; both the front steel-holding section 4 and the pre-transfer steel section 5 include a pusher as described in any of the above technical solutions.

[0038] Specifically, the rolling process of the cross-rolled plate requires multiple rolling operations, and the steel plate 8 needs to be rotated 90° before each rolling operation. That is, multiple rolling mills 7 are set up on a production line, and a front-holding steel section 4 and a pre-rotating steel section 5 are set up on the feed side of each rolling mill 7. The pre-rotating steel section 5 receives the steel plate 8 transferred from the previous process at a location away from the rolling mill 7, and rotates the steel plate 8 by 90° in advance and centers it upright, adjusting the angle of the steel plate 8. The front-holding steel section 4 centers the steel plate 8 again upright, and then directly inputs the steel plate 8 into the rolling mill 7 through the flat roller 2 at the end of the front-holding steel section 4. Therefore, there is no other transfer process between the front-holding steel section 4 and the rolling mill 7, and the steel plate 8 enters the rolling mill 7 with no angle deviation and in the center, greatly improving the rolling quality.

[0039] Preferably, in a specific embodiment, the distance between the pre-rotating steel section 5 and the front clamping steel section 4 is greater than the maximum length of the steel plate being rolled. Therefore, when one steel plate 8 enters the front clamping steel section 4 for clamping, the next steel plate 8 can enter the pre-rotating steel section 5 for rotation and clamping, thereby significantly improving the efficiency of steel rotation and rolling.

[0040] Furthermore, in one embodiment, such as Figure 1 As shown, it also includes a rear steel-holding part 6 connected to the discharge end 72 of the rolling mill 7, and the rear steel-holding part 6 includes the pusher.

[0041] Specifically, after the steel plate 8 is rolled in the rolling mill 7, it is output to the rear steel clamping section 6 for forward centering, and then output by the rear steel clamping section 6 to the pre-transfer section 5 for the next process.

[0042] Furthermore, in one embodiment, the adjacent conical rollers 1 in the pre-rotating steel section 5 rotate in opposite directions, while the flat roller 2 rotates toward the first direction.

[0043] Specifically, the steel plate 8 rotates in the pre-rotation section 5. When the rotation angle reaches 90°, the two clamping parts 31 of the pre-rotation section 5 move towards each other, pushing the steel plate 8 to center in the correct direction and preventing further rotation. The conical rollers 1 are adjusted so that all the conical rollers 1 and the flat rollers 2 rotate towards the first direction until the steel plate 8 is pushed out of the pre-rotation section 5. Here, rotating towards the first direction means that the rotation direction of the conical rollers 1 or the flat rollers 2 can drive the steel plate 8 to move towards the direction of entering the rolling mill 7.

[0044] Furthermore, in one embodiment, the conical roller 1 and the flat roller 2 in the front steel-holding part 4 and the rear steel-holding part 6 both rotate toward the first direction.

[0045] Specifically, when the steel plate 8 enters the front clamping section 4, the two clamping parts 31 of the front clamping section 4 move towards each other, pushing the steel plate 8 to be centered and input into the rolling mill 7; when the steel plate 8 enters the rear clamping section 6, the two clamping parts 31 of the rear clamping section 6 move towards each other, pushing the steel plate 8 to be centered and output to the next process.

[0046] Furthermore, in one embodiment, such as Figure 1 As shown, transition roller tables 9 are provided between the front steel holding section 4 and the pre-turning steel section 5, and at the end of the rear steel holding section 6 away from the rolling mill 7.

[0047] Specifically, the transition roller table 9, located at the end of the rear steel holding section 6 away from the rolling mill 7, connects the rear steel holding section 6 and the pre-transfer section 5 of the next process.

[0048] According to a third aspect of the embodiments of this application, a steel transfer and conveying method is provided, wherein the method uses a steel transfer and conveying device as described in any of the above technical solutions to convey steel plates, such as... Figure 4 As shown, the method includes: the pre-rotating steel section 5 receiving the steel plate 8 and driving the steel plate 8 to rotate horizontally by 90°; the two clamping parts 31 of the pre-rotating steel section 5 moving towards each other to push the steel plate 8 to center in the positive direction; the front clamping steel section 4 receiving the steel plate 8 output from the pre-rotating steel section 5; the two clamping parts 31 of the front clamping steel section 4 moving towards each other to push the steel plate 8 to center in the positive direction and input it into the rolling mill 7.

[0049] Furthermore, in one embodiment, the method further includes: the rear steel-holding part 6 receiving the steel plate 8 output by the rolling mill 7; the two clamping parts 31 of the rear steel-holding part 6 moving towards each other to push the steel plate 8 to be centered and output.

[0050] This method possesses all the beneficial effects of the aforementioned technical solutions for the pusher bed and steel transfer conveyor, which will not be elaborated upon here.

[0051] In the description of this specification, the terms "one embodiment," "some embodiments," "specific embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0052] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A pusher bed, characterized in that, It includes multiple conical rollers (1), multiple flat rollers (2), and a clamping structure (3); The conical roller (1) and the flat roller (2) are both arranged in parallel perpendicular to the first direction, and multiple flat rollers (2) are respectively arranged on both sides of all the conical rollers (2); The clamping structure (3) includes two clamping parts (31); The two clamps (31) extend along the first direction and are arranged perpendicular to the first direction above the plurality of conical rollers (1) and the plurality of flat rollers (2), and the two clamps (31) are capable of moving towards each other and away from each other; The first direction is the conveying direction of the steel plate (8).

2. The pusher according to claim 1, characterized in that, The conical roller (1) includes a working section (11) and a non-working section (12) arranged along the length direction; The cross-sectional diameter of the working section (11) is larger than the cross-sectional diameter of the non-working section (12); The working section (11) of the conical roller (1) and the non-working section (12) of the adjacent conical roller (1) are arranged opposite to each other along the first direction.

3. The pusher according to claim 2, characterized in that, The cross-sectional diameter of the flat roller (2) is the average of the cross-sectional diameter of the working section (11) and the cross-sectional diameter of the non-working section (12).

4. A steel transfer conveying device, characterized in that, It includes the front steel clamping section (4) and the pre-turned steel section (5); The front steel-holding part (4) and the pre-turning steel part (5) are both located on the feeding side of the rolling mill (7) and are used to convey steel plates (8) to the rolling mill (7); The front steel-holding section (4) is connected to the feed end (71) of the rolling mill (7) and is located between the pre-turning section (5) and the rolling mill (7); Both the front steel clamping section (4) and the pre-rotating steel section (5) include the pusher as described in any one of claims 1 to 3.

5. The steel transfer conveying device according to claim 4, characterized in that, It also includes a rear steel holding part (6) connected to the discharge end (72) of the rolling mill (7), and the rear steel holding part (6) includes the pusher.

6. The steel transfer conveying device according to claim 4, characterized in that, The adjacent conical rollers (1) in the pre-rotating steel section (5) rotate in opposite directions, while the flat roller (2) rotates toward the first direction.

7. The steel transfer conveying device according to claim 5, characterized in that, The conical roller (1) and the flat roller (2) in the front steel clamping section (4) and the rear steel clamping section (6) both rotate toward the first direction.

8. The steel transfer conveying device according to claim 5, characterized in that, A transition roller table (9) is provided between the front steel holding section (4) and the pre-turning steel section (5) and at the end of the rear steel holding section (6) away from the rolling mill (7).

9. A method for transferring steel, characterized in that, The method of conveying steel plates using the steel conveying device as described in any one of claims 4 to 8 includes: The pre-rotating steel section (5) receives the steel plate (8) and drives the steel plate (8) to rotate horizontally by 90°; The two clamps (31) of the pre-rotated steel section (5) move toward each other, pushing the steel plate (8) to center in the positive direction; The front steel-holding section (4) receives the steel plate (8) output from the pre-turned steel section (5); The two clamps (31) of the front steel clamping part (4) move towards each other, pushing the steel plate (8) to be centered in the forward direction and input into the rolling mill (7).

10. The steel transfer and conveying method according to claim 9, characterized in that, The method further includes: The rear steel-holding section (6) receives the steel plate (8) output by the rolling mill (7); The two clamps (31) of the rear steel clamping part (6) move towards each other, pushing the steel plate (8) to be centered and output.

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