Rolling mill for producing shelf beams

Abstract

The present application relates to the technical field of rolling mill, and discloses a rolling mill for shelf beam production, which comprises a bed body and a rolling mechanism, the rolling mechanism comprises a rolling frame, a linear module two for driving the rolling frame to move, a cantilever frame is installed on the rolling frame, a connecting frame is arranged at the tail end of the cantilever frame, a side rolling assembly is installed at the bottom of the connecting frame, the side rolling assembly comprises two groups of rolling parts, the rolling part comprises a side stand column which is slidingly installed on the connecting frame along the width direction of the bed body, a sliding seat is slidingly installed on the side stand column along the vertical direction, the side stand column is provided with two side stand columns one and two along the sliding direction of the side stand column, two side cams are installed on the side stand column one and are respectively a lower side cam installed at the bottom of the side stand column one and an upper side cam installed on the sliding seat, and two side cams are installed on the side stand column two and are respectively a lower side cam installed at the bottom of the side stand column two and an upper side cam installed on the sliding seat.

Description

Technical Field

[0001] This invention relates to the field of rolling mill technology, and more specifically to a rolling mill for producing rack beams. Background Technology

[0002] A rolling mill is a device used to realize the metal rolling process. During rolling, the metal billet is passed through the gap between a pair of rotating rolls and deformed by the pressure of the rolls, thus rolling the metal billet into the desired shape. Depending on the original size of the metal billet to be processed and the processing requirements, it is generally necessary to change the rolling mill, which is time-consuming and labor-intensive. Based on this point, after searching, a Chinese utility model patent with authorization announcement number CN211437476U was found, which discloses a rolling mill roll gap adjustment device and a rolling mill. Although it can adjust the roll gap between the first roll and the second roll by adjusting the distance between the first support assembly and the second support assembly, so as to adapt to the rolling of metal billets with different original sizes and processing requirements, the processing requirements such as the number of rolls and the distance between two adjacent rolling positions also vary in the rolling process of different metal billets. The adaptability of this patent document is relatively simple and needs to be improved and enhanced.

[0003] Based on the above, the present invention proposes a rolling mill for producing shelf beams. Summary of the Invention

[0004] To address the problems mentioned in the background above, the present invention provides a rolling mill for producing shelf beams.

[0005] To achieve the above-mentioned technical objectives, the technical solution adopted by the present invention is as follows.

[0006] A rolling mill for producing shelf beams includes a bed and a rolling mechanism. The bed is equipped with a limiting component for limiting the beam to be rolled. The rolling mechanism includes a rolling frame that is slidably installed on one side of the bed along the length of the bed and a linear module 2 that drives the rolling frame to move. A cantilever frame and a linear module 3 that drives the cantilever frame to move in the vertical direction are installed on the rolling frame.

[0007] A connecting frame is provided at the end of the cantilever frame, and a side rolling assembly is installed at the bottom of the connecting frame. The side rolling assembly includes rolling components, and there are two sets of rolling components. The rolling components include side columns arranged vertically and slidably installed on the connecting frame along the width of the bed. A slide block is slidably installed on the side column along the vertical direction. A traction rod is connected to the upper end of the slide block. There are two side columns along their own sliding direction, namely side column one and side column two. The side column two of the two sets of rolling components is located between the side column one of the two sets of rolling components.

[0008] Two side cams are installed on the first side column, namely the lower side cam installed at the bottom of the first side column and the upper side cam installed on the slide. Two side concave wheels are installed on the second side column, namely the lower side concave wheel installed at the bottom of the second side column and the upper side concave wheel installed on the slide. The axis lines of the side cams and side concave wheels are arranged vertically.

[0009] Furthermore, the side rolling assembly also includes a drive component for moving the two side columns in the rolling section.

[0010] Furthermore, the drive component includes a drive column one and a drive column two arranged vertically;

[0011] Two drive columns are provided and located on opposite sides of the two sets of rolling components. A connecting rod is hinged between the drive column and the side column. The hinge axis formed by the hinge of the connecting rod and the drive column or the side column is parallel to the length direction of the bed. Two connecting rods are provided in the vertical direction.

[0012] Furthermore, the second drive column is located between the two sets of rolling components, and the second drive column and the second side column are hingedly connected by a second connecting rod. The hinge axis formed by the hinge of the second connecting rod and the second drive column or the second side column is parallel to the length direction of the bed. There are two second connecting rods located between the second side column and the second drive column in the vertical direction.

[0013] Furthermore, connecting frame one and connecting frame two, as well as an inner support, are slidably installed on the connecting frame in the vertical direction. The connecting frame is also equipped with linear module four for driving connecting frame one to move, linear module five for driving connecting frame two to move, and linear module six for driving the inner support to move. Connecting frame one is connected to drive column one, connecting frame two is connected to drive column two, and the inner support and traction rod form a sliding connection along the width direction of the bed.

[0014] Furthermore, the bottom of the connecting frame is equipped with vertically arranged inner columns. The inner columns and the connecting frame are in sliding engagement along the width direction of the bed. There are two inner columns along their own sliding direction. The connecting frame is equipped with a linear module 7 for driving the two inner columns to move closer or further apart. Each inner column has a bottom concave wheel installed at its bottom, and the axis of the bottom concave wheel is parallel to the width direction of the bed.

[0015] Furthermore, a bottom mold can be detachably installed on the upper end face of the bed. The upper surface of the bottom mold extends with raised strips. The length direction of the raised strips is parallel to the length direction of the bed, and there are two raised strips along the width direction of the bed.

[0016] Furthermore, the limiting assembly includes two side platforms and a linear module 1 for driving the two side platforms to move closer to or further away from each other. After the crossbeam is placed on the bed with its opening facing upwards, the two side platforms are located on both sides of the crossbeam. When the two side platforms are driven to move closer to each other by the linear module 1, the side platforms contact the sides of the crossbeam, and the steps set at the ends of the side platforms and close to the side of the crossbeam contact the ends of the crossbeam.

[0017] Furthermore, the limiting component also includes electromagnets disposed at the bottom of the bed, with several electromagnets arranged in an array along the length of the bed.

[0018] Compared with the prior art, the beneficial effects of this invention are as follows:

[0019] 1. In this application, the rolling structure moves during rolling, while the crossbeam serving as the workpiece to be rolled remains stationary. Therefore, compared with the prior art where the workpiece moves but the rolling structure remains stationary, this application occupies a smaller area.

[0020] 2. When there is only one rib on the side wall of the crossbeam, rolling can be completed by the cooperation of the lower cam and the lower concave wheel, while the height of the upper cam and the upper concave wheel is adjusted to avoid contact with the crossbeam; when there is an even number of ribs on the side wall of the crossbeam, the rolling of the bottom two ribs is completed first, and then the height of the side cam and the side concave wheel is changed by the straight module three to continue rolling the remaining ribs; when there is an odd number of ribs on the side wall of the crossbeam, the rolling of the remaining ribs except the top rib is completed first, and then the rolling of the top rib is completed by the cooperation of the lower cam and the lower concave wheel, while the height of the upper cam and the upper concave wheel is adjusted to avoid contact with the crossbeam; that is, this application can adapt to the number of ribs, the position of ribs, the position of adjacent ribs, and the thickness of the side wall of the crossbeam and the distance between the two sides of the crossbeam for rolling the crossbeam, and has a wider adaptability. It should be noted that this application is more suitable for small batch production;

[0021] 3. In this application, the adjustment of the side cam and the side concave wheel is achieved by moving the side column one and the side column two. At the same time, during rolling, the side cam is also driven by moving the side column one to press against the side wall of the crossbeam. Therefore, the adjustment and rolling are driven by the driving component, which greatly simplifies the overall structure, reduces the weight of the side rolling assembly, and enables the rolling method in which the side rolling assembly moves while the crossbeam remains stationary. In addition, during rolling, the parallelogram linkage structure can balance the forces on the upper and lower sides of the side cam, making the rolling process more stable and smooth. If only one end of the side column one is stressed, then during rolling, the side cam is stressed on only one side, and the other side is not stressed, which seriously affects the rolling quality and the parts are also easily damaged. Attached Figure Description

[0022] Figure 1This is a schematic diagram of the structure of the present invention;

[0023] Figure 2 This is a structural diagram of the bed frame;

[0024] Figure 3 for Figure 2 A magnified view of A;

[0025] Figure 4 This is a schematic diagram of the bed frame viewed from below.

[0026] Figure 5 This is a schematic diagram of the rolling mechanism;

[0027] Figure 6 This is a partial side view of the rolling mechanism;

[0028] Figure 7 This is a partial schematic diagram of the rolling mechanism;

[0029] Figure 8 This is a schematic diagram of the inner column and the bottom concave wheel;

[0030] Figure 9 This is a schematic diagram of the connecting frame and the side rolling assembly from a top-down view.

[0031] Figure 10 This is a schematic diagram of the connecting frame and the side rolling assembly from a downward viewing angle;

[0032] Figure 11 This is a schematic diagram of the structure of the rolled component;

[0033] Figure 12 This is a partial schematic diagram of the rolled component.

[0034] The labels in the attached diagram are:

[0035] 100. Bed; 101. Linear Module 1; 102. Electromagnet; 103. Bottom Die; 104. Side Table; 200. Rolling Mechanism; 201. Linear Module 2; 202. Rolling Stand; 203. Linear Module 3; 204. Cantilever Frame; 205. Connecting Frame; 206. Linear Module 4; 207. Linear Module 5; 208. Linear Module 6; 209. Linear Module 7; 210. Inner Column; 211. Bottom Concave Wheel; 212. Connecting Frame 1; 213. Connecting Frame 2; 214. Inner Support; 215. Side Column; 216. Side Cam; 217. Side Concave Wheel; 218. Traction Rod; 219. Drive Column 1; 220. Connecting Rod 1; 221. Drive Column 2; 222. Connecting Rod 2; 223. Slide. Detailed Implementation

[0036] To further illustrate the technical means and effects of the present invention in achieving its intended purpose, the following detailed description of the specific implementation methods, structures, features, and effects of the present invention, in conjunction with the accompanying drawings and preferred embodiments, is provided below.

[0037] In this attached diagram, 'a' refers to the crossbeam to be rolled, and 'b' refers to the ribs that need to be rolled on the crossbeam. The crossbeam is U-shaped as a whole, with the opening facing upwards during rolling, and ribs need to be rolled on the bottom and both sides.

[0038] Reference Figures 1-12 A rolling mill for producing shelf beams includes a bed 100 and a rolling mechanism 200.

[0039] Reference Figures 2-4 A limiting component is installed on the bed 100 to limit the crossbeam to be rolled. Specifically, the limiting component includes a bottom mold 103 that is detachably installed on the upper end face of the bed 100, for example, by plugging in. The upper surface of the bottom mold 103 has a protruding strip. The length direction of the protruding strip is parallel to the length direction of the bed 100. There are two protruding strips along the width direction of the bed 100.

[0040] The limiting assembly also includes two side platforms 104 located on both sides of the bottom mold 103 along the length of the bed 100, and a linear module 101 for driving the two side platforms 104 to move closer or further apart. After the crossbeam is placed on the bottom mold 103 with its opening facing upward, the linear module 101 drives the two side platforms 104 to move closer together, and the side platforms 104 contact the side of the crossbeam. The step provided at the end of the side platform 104 and close to the bottom mold 103 contacts the end of the crossbeam. In this way, the crossbeam is limited. The crossbeam can move in the vertical direction, but cannot deviate to the side.

[0041] The limiting component also includes an electromagnet 102 disposed at the bottom of the bed 100. Several electromagnets 102 are arranged in an array along the length of the bed 100. The shelf beam is generally made of iron. Therefore, the magnetic force between the electromagnet 102 and the beam can further limit the beam.

[0042] Reference Figure 5 and Figure 6 The rolling mechanism 200 includes a rolling frame 202 that is slidably mounted on one side of the bed 100 along the length of the bed 100, and a linear module 201 for driving the rolling frame 202 to move. A cantilever frame 204 and a linear module 3 203 for driving the cantilever frame 204 to move in the vertical direction are mounted on the rolling frame 202.

[0043] Reference Figure 7 and Figure 8The end of the cantilever 204 is located above the bottom mold 103 and is provided with a connecting frame 205. The bottom of the connecting frame 205 is equipped with vertically arranged inner columns 210. The inner columns 210 and the connecting frame 205 form a sliding fit along the width direction of the bed 100. There are two inner columns 210 along their own sliding direction. The connecting frame 205 is equipped with a linear module 209 for driving the two inner columns 210 to move closer or further apart. Each inner column 210 is equipped with a bottom concave wheel 211 at its bottom. The axis of the bottom concave wheel 211 is parallel to the width direction of the bed 100.

[0044] After the crossbeam to be rolled is placed on the bed 100 and restricted by the limiting component, the bottom of the crossbeam contacts the convex strip. At the same time, the two inner columns 210 are driven to move by the linear module seven 209, so that the two inner columns 210 are respectively located above the two convex strips. Then, the cantilever frame 204 is driven to move downward by the linear module three 203. The downward movement of the cantilever frame 204 takes the inner columns 210 and the bottom concave roller 211 down with it. At the same time, the rolling frame 202 is driven to move by the linear module two 201. The rolling frame 202 moves together with the bottom concave roller 211. Through the cooperation of the bottom concave roller 211 and the convex strip, the bottom of the crossbeam can be rolled to form two ribs at the bottom of the crossbeam. Since the distance between the two inner columns 210 is adjustable, the distance between the ribs at the bottom of the crossbeam can be adjusted by changing the bottom die 103.

[0045] Reference Figure 6 and Figures 9-12 The bottom of the connecting frame 205 is also equipped with a side rolling assembly, which is used to roll the ribs on both sides of the crossbeam.

[0046] Reference Figure 11 and Figure 12 The side rolling assembly includes rolling components, and two sets of rolling components are provided. Specifically, the rolling components include side columns 215 arranged vertically and slidably mounted on the connecting frame 205 along the width direction of the bed 100. A slide block 223 is slidably mounted on the side column 215 in the vertical direction. A traction rod 218 is connected to the upper end of the slide block 223. There are two side columns 215 along their own sliding direction, which are respectively named side column one and side column two. The side column two of the two sets of rolling components is located between the side columns one of the two sets of rolling components.

[0047] Two side cams 216 are installed on the first side column, namely the lower side cam installed at the bottom of the first side column and the upper side cam installed on the slide block 223. Two side concave wheels 217 are installed on the second side column, namely the lower side concave wheel installed at the bottom of the second side column and the upper side concave wheel installed on the slide block 223. The axis lines of the side cams 216 and the side concave wheels 217 are arranged vertically.

[0048] The side rolling assembly also includes a drive component for moving the two side columns 215 in the rolling section.

[0049] The drive components include a drive column 219 and a drive column 221 arranged vertically.

[0050] Two drive columns 219 are provided and located on opposite sides of the two sets of rolling components. A connecting rod 220 is hinged between the drive column 219 and the side column 1. The hinge axis formed by the hinge of the connecting rod 220 and the drive column 219 or the side column 1 is parallel to the length direction of the bed 100. Two connecting rods 220 are provided in the vertical direction, thus forming a parallelogram linkage structure. When the drive column 219 moves in the vertical direction, the side column 1 can be driven to move through the cooperation of the two connecting rods 220.

[0051] Drive column 221 is located between the two sets of rolling components. Drive column 221 and side column 2 are hingedly connected by connecting rod 222. The hinge axis formed by the hinge of connecting rod 222 and drive column 221 or side column 2 is parallel to the length direction of bed 100. There are two connecting rods 222 in the vertical direction, thus forming a parallelogram linkage structure. When drive column 221 moves in the vertical direction, the two connecting rods 222 can drive the side column 2 to move. It should be noted that there are two connecting rods 222 between the side column 2 and drive column 221 of each set of rolling components.

[0052] Reference Figure 9 and Figure 10 The connecting frame 205 is slidably mounted with connecting frame 1 212, connecting frame 213 and inner support 214 in the vertical direction. The connecting frame 205 is also provided with linear module 4 206 for driving connecting frame 1 212 to move, linear module 5 207 for driving connecting frame 213 to move and linear module 6 208 for driving inner support 214 to move. Connecting frame 1 212 is connected to drive column 1 219, connecting frame 213 is connected to drive column 2 221, and inner support 214 and traction rod 218 form a sliding connection along the width direction of bed 100.

[0053] After the bottom ribs of the crossbeam are rolled, the ribs on both sides of the crossbeam are rolled. Specifically, this will be explained using the example of two ribs being rolled on each side of the crossbeam:

[0054] Reference Figure 6 Initially, the second side column was located in the middle of the crossbeam, while the two side columns were located on both sides of the crossbeam.

[0055] The linear module 208 drives the inner support 214 to move in the vertical direction. The inner support 214 moves together with the traction rod 218, the slide 223, the upper cam and the upper concave wheel, so that the distance between the upper cam and the lower cam, and between the upper concave wheel and the lower concave wheel, is equal to the distance between the two ribs on the side of the crossbeam.

[0056] The cantilever 204 is moved by the linear module 3 203, so that the upper cam, the upper concave wheel and the upper rib are at the same height, and the lower cam, the lower concave wheel and the lower rib are at the same height.

[0057] Then, the linear module 5 207 drives the connecting frame 213 to move, and the connecting frame 213 moves together with the driving column 221. The driving column 221, through the cooperation of the two connecting rods 222, drives the side column 2 to move, so that the upper concave wheel and the lower concave wheel contact the side wall of the crossbeam. At the same time, the linear module 4 206 drives the connecting frame 1 212 to move, and the connecting frame 1 212 moves together with the driving column 1 219. The driving column 1 219, through the cooperation of the two connecting rods 220, drives the side column 1 to move, so that the upper cam and the lower cam contact the side wall of the crossbeam.

[0058] Then, the linear module 206 continues to drive the connecting frame 212 to move, thereby driving the upper and lower cams to squeeze the side wall of the crossbeam. At the same time, the linear module 201 drives the rolling frame 202 to move, and the rolling frame 202 moves together with the side rolling assembly, thereby realizing the rolling of the ribs on the side wall of the crossbeam.

[0059] From the above description, we can conclude that:

[0060] 1. In this application, the rolling structure moves during rolling, while the crossbeam serving as the workpiece to be rolled remains stationary. Therefore, compared with the prior art where the workpiece moves but the rolling structure remains stationary, this application occupies a smaller area.

[0061] 2. When there is only one rib on the side wall of the crossbeam, rolling can be completed by the cooperation of the lower cam and the lower concave wheel, while the height of the upper cam and the upper concave wheel is adjusted to avoid contact with the crossbeam; when there is an even number of ribs on the side wall of the crossbeam, the rolling of the bottom two ribs is completed first, and then the height of the side cam and the side concave wheel is changed by the straight module three to continue rolling the remaining ribs; when there is an odd number of ribs on the side wall of the crossbeam, the rolling of the remaining ribs except the top rib is completed first, and then the rolling of the top rib is completed by the cooperation of the lower cam and the lower concave wheel, while the height of the upper cam and the upper concave wheel is adjusted to avoid contact with the crossbeam; that is, this application can adapt to the number of ribs, the position of ribs, the position of adjacent ribs, and the thickness of the side wall of the crossbeam and the distance between the two sides of the crossbeam for rolling the crossbeam, and has a wider adaptability. It should be noted that this application is more suitable for small batch production;

[0062] 3. In this application, the adjustment of the side cam and the side concave wheel is achieved by moving the side column one and the side column two. At the same time, during rolling, the side cam is also driven by moving the side column one to press against the side wall of the crossbeam. Therefore, the adjustment and rolling are driven by the driving component, which greatly simplifies the overall structure, reduces the weight of the side rolling assembly, and enables the rolling method in which the side rolling assembly moves while the crossbeam remains stationary. In addition, during rolling, the parallelogram linkage structure can balance the forces on the upper and lower sides of the side cam, making the rolling process more stable and smooth. If only one end of the side column one is stressed, then during rolling, the side cam is stressed on only one side, and the other side is not stressed, which seriously affects the rolling quality and the parts are also easily damaged.

[0063] In this solution, the linear module can be based on existing electric telescopic pole technology, or the following technology: a motor drives a lead screw to rotate, and the rotation of the lead screw causes an object that is threadedly connected to the lead screw and has a sliding fit with other surrounding components along the axis of the lead screw to move; the motor drives the lead screw to rotate, and the lead screw is divided into two threaded segments with opposite directions of thread along the axis of the lead screw. An object is threadedly installed on each threaded segment, and the object has a sliding fit with the surrounding components along the axis of the lead screw. Therefore, the rotation of the lead screw can drive the two objects to move away from each other or towards each other.

[0064] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A rolling mill for producing shelf beams, comprising a bed and a rolling mechanism, characterized in that, The bed is equipped with a limiting component to limit the crossbeam to be rolled. The rolling mechanism includes a rolling frame that is slidably installed on one side of the bed along the length of the bed and a linear module 2 that drives the rolling frame to move. A cantilever frame and a linear module 3 that drives the cantilever frame to move in the vertical direction are installed on the rolling frame. A connecting frame is provided at the end of the cantilever frame, and a side rolling assembly is installed at the bottom of the connecting frame. The side rolling assembly includes rolling components, and there are two sets of rolling components. The rolling components include side columns arranged vertically and slidably installed on the connecting frame along the width of the bed. A slide block is slidably installed on the side column in the vertical direction. A traction rod is connected to the upper end of the slide block. There are two side columns arranged along their own sliding direction, namely side column one and side column two. The side column two of the two sets of rolling components is located between the side column one of the two sets of rolling components. Two side cams are installed on the first side column, namely the lower side cam installed at the bottom of the first side column and the upper side cam installed on the slide. Two side concave wheels are installed on the second side column, namely the lower side concave wheel installed at the bottom of the second side column and the upper side concave wheel installed on the slide. The axis lines of the side cams and the side concave wheels are arranged vertically. The side rolling assembly also includes a drive component for moving the two side columns in the rolling section; The drive components include a drive column one and a drive column two arranged vertically; Two drive columns are provided and located on opposite sides of the two sets of rolling components. A connecting rod is hinged between the drive column and the side column. The hinge axis formed by the hinge of the connecting rod and the drive column or the side column is parallel to the length direction of the bed. Two connecting rods are provided in the vertical direction. The second drive column is located between the two sets of rolling components. The second drive column and the second side column are hinged together by a second connecting rod. The hinge axis formed by the hinge of the second connecting rod and the second drive column or the second side column is parallel to the length direction of the bed. There are two second connecting rods located between the second side column and the second drive column in the vertical direction. The bottom of the connecting frame is equipped with vertically arranged inner columns. The inner columns and the connecting frame are in sliding engagement along the width of the bed. There are two inner columns along their own sliding direction. The connecting frame is equipped with a linear module 7 for driving the two inner columns to move closer or further apart. Each inner column has a bottom concave wheel installed at its bottom, and the axis of the bottom concave wheel is parallel to the width of the bed.

2. The rolling mill for producing shelf beams according to claim 1, characterized in that, Connecting frame one and connecting frame two, as well as an inner support, are slidably installed on the connecting frame in the vertical direction. The connecting frame is also equipped with linear module four for driving the movement of connecting frame one, linear module five for driving the movement of connecting frame two, and linear module six for driving the movement of the inner support. Connecting frame one is connected to drive column one, connecting frame two is connected to drive column two, and the inner support and traction rod form a sliding connection along the width direction of the bed.

3. The rolling mill for producing shelf beams according to claim 1, characterized in that, The upper end face of the bed is detachably fitted with a bottom mold. The upper surface of the bottom mold extends with raised strips. The length of the raised strips is parallel to the length of the bed, and there are two raised strips along the width of the bed.

4. A rolling mill for producing shelf beams according to claim 1, characterized in that, The limiting assembly includes two side platforms and a linear module 1 for driving the two side platforms to move closer to or further away from each other. After the crossbeam is placed on the bed with its opening facing upwards, the two side platforms are located on both sides of the crossbeam. When the two side platforms are driven to move closer to each other by the linear module 1, the side platforms contact the sides of the crossbeam. The step located at the end of the side platform and close to the side of the crossbeam contacts the end of the crossbeam.

5. A rolling mill for producing shelf beams according to claim 4, characterized in that, The limiting component also includes electromagnets located at the bottom of the bed, with several electromagnets arranged in an array along the length of the bed.

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