A square tube lining plate welding machine

Abstract

The utility model relates to a square tube lining plate welding machine for square tube manufacturing equipment technical field belongs, this equipment includes frame, the both sides symmetry of frame are provided with lining plate blanking machine, the frame between two lining plate blanking machine is sequentially arranged and is provided with a plurality of transmission roll, the steel plate is along transmission roll and rolls into two lining plate blanking machine between, be provided with welding robot on the frame, the upper end between lining plate blanking machine and frame is provided with a plurality of down -the-hole oil cylinder in vertical direction, through down -the-hole oil cylinder synchronous drive lining plate blanking machine moves down and press the steel plate on transmission roll upside tightly, the lining plate that welding robot will push out from lining plate blanking machine is convenient for welding fixed in the upper end both sides of steel plate, the utility model realizes the automatic lining plate blanking, positioning and welding whole course automation, solved the problem that artificial operation efficiency is low, labour intensity is big, positioning accuracy is poor, especially suitable for the square tube lining plate welding in assembly type building and steel construction manufacture.

Description

Technical Field

[0001] This utility model relates to the field of square tube manufacturing equipment technology, specifically an automated device for welding square tube lining plates. Background Technology

[0002] In the field of prefabricated buildings and steel structure manufacturing, square tubes are common structural components. To improve the strength and precision of butt joints or connections between square tubes, it is often necessary to weld backing plates at specific locations inside the square tubes. These backing plates are usually small rectangular plates that serve to position, support, or reinforce the connection during the welding process.

[0003] Currently, in the welding process of square tube liners, the loading of liners is mostly done manually. Operators need to manually pick up the liners one by one from the material pile and place them into the predetermined welding position inside the square tube. This manual operation method has many drawbacks: First, the production efficiency is low, making it difficult to match the cycle time of automated welding equipment, thus becoming a bottleneck process in the production line; second, the repetitive manual picking and placing of materials is labor-intensive and easily leads to operator fatigue; third, in a fast-paced production environment, the accuracy of manual placement may fluctuate, affecting the subsequent welding quality; in addition, there are safety hazards such as high temperature and arc light near the welding station, and manual operation increases safety risks.

[0004] Existing automated welding equipment is mostly specialized equipment designed for tube sheet welding or simple weld seams, and cannot meet the complex process requirements of square tube liner welding. Some automated equipment is prone to wear during the welding process or cannot achieve precise automated welding. Therefore, developing a dedicated square tube liner welding machine to achieve automatic liner feeding, precise positioning, and high-quality welding is of great significance for improving the production efficiency and quality of square tubes. Utility Model Content

[0005] This invention overcomes the shortcomings of existing technologies and provides a welding machine for square tube liners, realizing full automation of the entire process of automatic feeding, precise positioning and welding of liners.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: a square tube liner welding machine, including a frame, liner feeding machines symmetrically arranged on both sides of the frame, multiple transmission rollers arranged sequentially between the two liner feeding machines, steel plates rolling along the transmission rollers into the space between the two liner feeding machines, a welding robot mounted on the frame, and multiple pressing cylinders arranged vertically between the upper end of the liner feeding machine and the frame, the pressing cylinders synchronously driving the liner feeding machine to move downwards to press the steel plates on the upper side of the transmission rollers, so that the welding robot can weld and fix the liner plates pushed out by the liner feeding machine to the upper ends of the steel plates on both sides; The liner feeding machine includes a storage rack and an ejection mechanism. The ejection mechanism is fixedly installed on one side of the bottom end of the storage rack and is used to eject the liner stacked in the storage rack one by one.

[0007] Furthermore, the storage rack includes a first slide and a second slide arranged in parallel opposite directions, and a connecting end plate fixedly connected to both ends of the first slide and the second slide. A feeding channel is formed between the first slide and the second slide to accommodate the horizontal stacking of the liner plates. The width of the feeding channel is slightly larger than the width of a single liner plate, so that the liner plates fall smoothly without jamming. The actuator of the ejection mechanism is aligned horizontally with the bottommost liner in the feeding channel. After the ejection mechanism ejects the bottommost liner horizontally, the liner above it automatically falls to the ejection position under gravity.

[0008] Furthermore, a feed inlet is provided on the connecting end plate at the position corresponding to the feeding channel. The width of the feed inlet is the same as the width of the feeding channel, and it is used to supplement the liner plate into the feeding channel through the feed inlet. Multiple reinforcing plates are fixedly connected between the top ends of the first and second carriages to enhance the overall structural strength of the storage rack.

[0009] Furthermore, a plurality of limiting plates are provided at intervals along the length of the outer side of the first carriage. The lower end of the limiting plate extends downward and beyond the bottom surface of the first carriage, and is used to limit the liner pushed out by the pushing mechanism to ensure that it is pushed to the predetermined position. The welding robot is mounted on a slide rail assembly driven by a servo motor, avoiding the portion of the liner plate that is blocked by the lower end of the limiting plate when it is stopped, and performs spot welding to fix the liner plate and the steel plate.

[0010] Furthermore, a lateral spacing adjustment mechanism is provided between the liner plate feeding machines. The cylinder body of the pressing cylinder is slidably mounted on a slide rail fixed to the top of the frame via a slider fixed thereon. The lateral spacing adjustment mechanism pushes and pulls the liner plate feeding machines to both sides to change the spacing between them, adapting to the welding of steel plates of different widths.

[0011] Furthermore, a power assembly is provided at the end of the transmission roller, which drives the transmission roller to rotate, thereby pushing the steel plate to feed and to discharge it after welding. The power assembly includes a motor and a transmission chain, wherein the motor drives all transmission rollers to rotate synchronously via the transmission chain.

[0012] Furthermore, an auxiliary feeding pulley assembly is provided at the feed inlet of the frame. The auxiliary feeding pulley assembly is driven by a power mechanism to swing the end rollers up and down, placing the steel plate placed on it at the feed inlet of the frame. The auxiliary feeding pulley group includes a hydraulic cylinder and a hinged roller. The hydraulic cylinder drives the roller to move the horizontally supported steel plate downward and swing it to an inclined position so that the steel plate slides into the frame.

[0013] Furthermore, the welding robot is controlled to move in three-dimensional space by a servo system, and the welding torch angle of the welding robot is adjustable to adapt to different welding positions; The welding robot is connected to the control system and automatically adjusts the welding path according to the width of the steel plate and the position of the lining plate.

[0014] Furthermore, the pressing cylinder is synchronously controlled by the hydraulic system to ensure that the two side liner plate feeders press down simultaneously and evenly press the steel plates; The piston rod end of the pressing cylinder is equipped with a pressure sensor to monitor the clamping force in real time and feed it back to the control system.

[0015] Furthermore, the lateral spacing adjustment mechanism includes a bidirectional lead screw and a drive motor. The two ends of the bidirectional lead screw are respectively connected to the two side liner feeders. The drive motor drives the liner feeders to move in opposite directions or backwards through forward and reverse rotation. The lateral spacing adjustment mechanism is connected to the control system and automatically adjusts the spacing of the liner feeding machine according to the input steel plate width.

[0016] The advantages of this invention compared to existing technologies are as follows: In this invention, liner feeding machines are symmetrically arranged on both sides of the frame, with multiple transmission rollers between the two liner feeding machines. The steel plate enters the welding position via the transmission rollers. Liners are stacked in the storage rack of the liner feeding machine, and the ejection mechanism ejects the bottom liner to both sides of the steel plate. The downward pressure cylinder moves the liner feeding machine downwards, pressing the steel plate. The welding robot moves along the slide rail assembly, spot-welding the liner to the steel plate. The lateral spacing adjustment mechanism adjusts the spacing of the liner feeding machines to accommodate steel plates of different widths. The power component drives the transmission rollers to rotate, and the auxiliary feeding pulley group assists in feeding the steel plate. The steel plate is fed to the transmission rollers via the auxiliary feeding pulley group, and the transmission rollers transport the steel plate to the welding position. The ejection mechanism of the liner feeding machine ejects the liner, the downward pressure cylinder presses the steel plate, and the welding robot performs welding. After welding is completed, the transmission rollers deliver the steel plate out. This invention achieves full automation, with a high degree of automation, reducing manual intervention, high welding precision, and accurate liner positioning; it is adaptable to steel plates of different widths, has strong versatility, stable structure, and long service life. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings.

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0019] Figure 2This is a side view of the three-dimensional structure of this utility model.

[0020] Figure 3 This is a three-dimensional structural diagram of the present invention viewed from below.

[0021] Figure 4 This is a schematic diagram of the internal structure of this utility model.

[0022] Figure 5 This is a three-dimensional structural diagram of the lining plate feeding machine of this utility model.

[0023] Figure 6 This is a schematic diagram of the ejection mechanism in this utility model.

[0024] Figure 7 This is a three-dimensional structural diagram of the launching mechanism from the bottom view of this utility model.

[0025] Figure 8 This is a side perspective three-dimensional structural diagram of the lining plate feeding machine of this utility model.

[0026] Figure 9 This is a three-dimensional structural diagram of the front side of the lining plate feeding machine in this utility model.

[0027] In the diagram: 1 is the frame, 2 is the liner feeder, 21 is the storage rack, 211 is the first slide, 212 is the second slide, 213 is the connecting end plate, 214 is the feed inlet, 215 is the limiting plate, 216 is the connecting reinforcement plate, 22 is the ejection mechanism, 221 is the mounting plate, 222 is the drive plate, 223 is the cylinder fixing plate, 224 is the connecting rod, 225 is the cylinder, 226 is the L-shaped paddle, 227 is the connecting rod, 228 is the push plate, 229 is the limiting post, 2210 is the guide groove, 3 is the transmission roller, 4 is the slide rail assembly, 5 is the pressing cylinder, 6 is the lateral spacing adjustment mechanism, 7 is the slide rail, 8 is the power assembly, and 9 is the auxiliary feeding pulley group. Detailed Implementation

[0028] The present invention will be further described below with reference to specific embodiments.

[0029] like Figures 1-9As shown, this utility model discloses a welding machine for square tube liners, including a frame 1. Liner unloading machines 2 are symmetrically arranged on both sides of the frame 1. Multiple transmission rollers 3 are arranged sequentially between the two liner unloading machines 2 on the frame 1. Steel plates roll along the transmission rollers 3 into the space between the two liner unloading machines 2. A welding robot (not shown in the figure) is mounted on the frame 1. Multiple pressing cylinders 5 are arranged vertically between the upper end of the liner unloading machine 2 and the frame 1. The pressing cylinders 5 synchronously drive the liner unloading machine 2 to move downward and press the steel plate on the upper side of the transmission rollers 3, so that the welding robot can weld and fix the liner pushed out by the liner unloading machine 2 to both sides of the upper end of the steel plate. The structure of the liner feeding machine 2 includes a storage rack 21 and an ejection mechanism 22. The ejection mechanism 22 is fixedly installed on one side of the bottom end of the storage rack 21 and is used to eject the liner stacked in the storage rack 21 one by one.

[0030] In this embodiment, the structure of the storage rack 21 is as follows: it includes a first slide 211 and a second slide 212 arranged in parallel opposite directions, and a connecting end plate 213 fixedly connected to both ends of the first slide 211 and the second slide 212. A feeding channel for accommodating horizontally stacked lining plates is formed between the first slide 211 and the second slide 212. The width of the feeding channel is slightly larger than the width of a single lining plate, so that the lining plate can fall smoothly in it without getting stuck. The actuator of the ejection mechanism 22 is aligned horizontally with the bottommost liner in the feeding channel. When the ejection mechanism 22 ejects the bottommost liner horizontally, the liner above it automatically falls to the ejection position under gravity.

[0031] In this embodiment, a feed inlet 214 is provided on the connecting end plate 213 at the position corresponding to the feeding channel. The width of the feed inlet 214 is the same as the width of the feeding channel, and it is used to supplement the liner plate into the feeding channel through the feed inlet 214.

[0032] In this embodiment, a plurality of limiting plates 215 are provided at intervals along the length direction on the outer side of the first slide 211. The lower end of the limiting plate 215 extends downward and beyond the bottom surface of the first slide 211, and is used to limit the liner pushed out by the pushing mechanism 22 to ensure that it is pushed to the predetermined position.

[0033] In this embodiment, a plurality of connecting and reinforcing plates 216 are fixedly connected between the top ends of the first slide 211 and the second slide 212 to enhance the overall structural strength of the storage rack 21.

[0034] In this embodiment, the ejection mechanism 22 includes: Mounting plate 221, with both ends fixed to the connecting end plate 213 of the storage rack 21, and the mounting plate 221 and the bottom of the storage rack 21 form a pushing channel with a height slightly greater than the thickness of the liner plate. The cylinder fixing plate 223 is fixedly mounted on the mounting plate 221; Cylinder 225, the cylinder body of which is horizontally fixed on cylinder fixing plate 223; The drive plate 222 is movably connected to the piston rod of the cylinder 225 via a vertically arranged connecting rod 224, and is driven by the cylinder 225 to perform horizontal reciprocating motion; Multiple L-shaped paddles 226 are evenly distributed along the length of the drive plate 222. The first end of each L-shaped paddle 226 is movably connected to the drive plate 222, and the middle inflection point is movably connected to the mounting plate 221. Link 227, one end of which is movably connected to the second end of the L-shaped lever 226; Push plate 228 is movably connected to the other end of connecting rod 227 and is used to directly push the liner plate; In addition, a plurality of guide grooves 2210 are provided on the push plate 228 and a limiting post 229 is fixed on the mounting plate 221 or the frame. The limiting post 229 passes through the guide groove 2210, so that the push plate 228 moves horizontally and reciprocally in a stable direction defined by the guide groove 2210 under the drive of the drive plate 222.

[0035] In this embodiment, a lateral spacing adjustment mechanism 6 is provided between the liner plate feeding machines 2. The cylinder body of the pressing cylinder 5 is slidably mounted on a slide rail 7 fixed to the top of the frame 1 via a slider fixed to it. The lateral spacing adjustment mechanism 6 pushes and pulls the liner plate feeding machines 2 to both sides, changing the spacing between them to meet the welding requirements of steel plates of different widths. When the liner plate feeding machine 2 moves laterally, the pressing cylinder 5 moves laterally synchronously along the slide rail 7. At least two lateral spacing adjustment mechanisms 6 work synchronously, and a linear bearing is provided between the two liner plate feeding machines 2 for guidance.

[0036] The structure of the transverse spacing adjustment mechanism 6 is as follows: the drive motor drives the bidirectional lead screw to rotate, so that the two side liner plate feeders 2 move synchronously towards or away from each other along the slide rail 7 until they reach the predetermined position.

[0037] In this embodiment, a power assembly 8 is provided at the end of the transmission roller 3. The power assembly 8 drives the transmission roller 3 to rotate, pushing the steel plate to feed and to discharge it after welding. The structure of the power assembly 8 is as follows: the motor drives all transmission rollers to rotate synchronously through the transmission chain, accurately conveying the steel plate to the welding station.

[0038] In this embodiment, an auxiliary feeding pulley group 9 is provided at the feed inlet of the frame 1. The auxiliary feeding pulley group 9 is driven by a power mechanism to swing the end rollers up and down, placing the steel plate on it at the feed inlet of the frame 1. The roller group is in a horizontal position (initial position) to receive the steel plate. Then, the hydraulic cylinder extends and pushes the roller group downward through the linkage mechanism, so that the steel plate is smoothly slid into the feed inlet of the frame 1 by its own weight.

[0039] In this embodiment, the welding robot is movably mounted on the slide rail assembly 4 driven by the servo motor, avoiding the part of the liner plate that is blocked by the lower end of the limiting plate 215 when it is limited, and performs spot welding to fix the liner plate and the steel plate.

[0040] The following section provides a detailed description of the collaborative operation and precise control of the various functional modules of this utility model: 1. Equipment preparation stage; The operator first inputs the current production task parameters through the human-machine interface, including the steel plate width, liner specifications, and welding procedure. The control system automatically calculates the required spacing based on the steel plate width, and the lateral spacing adjustment mechanism 6 starts working: the drive motor drives the bidirectional lead screw to rotate, causing the two liner unloaders 2 to move synchronously towards or away from each other along the slide rail 7 until they reach the predetermined position. The position sensor detects the spacing value in real time and feeds it back to the control system to ensure positioning accuracy.

[0041] Meanwhile, the operator replenishes the lining plates to the storage rack 21 through the feed inlet 214. The lining plates are naturally stacked in the discharge channel formed by the first slide 211 and the second slide 212, and the connecting reinforcement plate 216 ensures that the storage rack remains structurally stable under full load.

[0042] 2. Steel plate loading and positioning stage; The steel plate is hoisted to the feeding area by an overhead crane, and the auxiliary feeding pulley block 9 begins operation: the roller block is in a horizontal position (initial position) to receive the steel plate, then the hydraulic cylinder extends, pushing the roller block downwards through a linkage mechanism, using the steel plate's own weight to smoothly slide it into the feeding port of frame 1. Driven by the power unit 8, the transmission roller 3 begins to rotate, and the motor drives all transmission rollers to rotate synchronously through a transmission chain, accurately conveying the steel plate to the welding station. A photoelectric sensor detects the position of the steel plate, ensuring its centerline coincides with the equipment's centerline.

[0043] 3. Liner plate delivery stage; After the steel plate is in place, the ejection mechanism 22 begins to operate: cylinder 225 pushes drive plate 222 forward, which in turn drives L-shaped paddle 226 to rotate around its central pivot point via connecting rod 224. The second end of L-shaped paddle 226 pushes push plate 228 smoothly forward along the path defined by guide groove 2210 via connecting rod 227. Push plate 228 passes through the pushing channel formed by mounting plate 221 and bottom of storage rack, precisely ejecting the bottom liner. The lower end of limiting plate 215 ensures that the liner is pushed to the predetermined position, maintaining a precise relative position with the edge of the steel plate.

[0044] 4. Pressing and welding stage; After the liner is in place, the downward pressing cylinder 5 operates synchronously, pushing the entire liner feeding machine 2 downward, and reliably pressing the steel plate onto the transmission roller 3 through the limit plate 215. The pressure sensor monitors the pressing force in real time to ensure that the pressure is uniform and reaches the set value.

[0045] The welding robot (fixed on the slide rail assembly 4, not shown in the figure) moves along the slide rail assembly 4 driven by the servo motor, avoiding the interference area of ​​the limit plate 215 according to the preset program, and performs spot welding to fix the contact area between the liner and the steel plate. During the welding process, the welding robot performs real-time path compensation according to the actual position of the liner to ensure accurate weld point positioning.

[0046] 5. Discharge cycle stage; After welding is completed, the lowering cylinder 5 lifts the liner unloading machine 2 to reset, and the transmission roller 3 restarts, sending the welded liner steel plate out of the equipment. Simultaneously, the liner plates in the storage rack 21 automatically fall one layer under gravity, preparing for the next work cycle. The entire equipment enters standby mode, waiting for the next steel plate to be loaded.

[0047] The unique feature of this utility model lies in its collaborative working mechanism: the linkage design between the lateral spacing adjustment mechanism 6 and the downward pressing cylinder 5 ensures that the equipment can maintain a stable pressing effect when adapting to steel plates of different widths; the planar linkage mechanism design of the push-out mechanism 22 realizes the linear motion of the push plate and avoids the swaying phenomenon when the cylinder pushes directly; the limiting plate 215 integrates the dual functions of liner positioning and steel plate pressing, which simplifies the structure while improving accuracy.

[0048] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A welding machine for square tube liner plates, characterized in that, The system includes a frame (1), on which lining plate feeders (2) are symmetrically arranged. Multiple transmission rollers (3) are arranged sequentially on the frame (1) between the two lining plate feeders (2). The steel plate rolls along the transmission rollers (3) into the space between the two lining plate feeders (2). A welding robot is installed on the frame (1). Multiple pressing cylinders (5) are arranged vertically between the upper end of the lining plate feeder (2) and the frame (1). The pressing cylinders (5) synchronously drive the lining plate feeder (2) to move downward and press the steel plate on the upper side of the transmission rollers (3), so that the welding robot can weld and fix the lining plate pushed out by the lining plate feeder (2) to the upper ends of the steel plate. The liner feeding machine (2) includes a storage rack (21) and a pushing mechanism (22). The pushing mechanism (22) is fixedly installed on one side of the bottom end of the storage rack (21) and is used to push out the liner stacked in the storage rack (21) one by one.

2. The welding machine for square tube liner plates according to claim 1, characterized in that, The storage rack (21) includes a first slide (211) and a second slide (212) arranged in parallel opposite directions, and a connecting end plate (213) fixedly connected to both ends of the first slide (211) and the second slide (212). A feeding channel for accommodating horizontally stacked lining plates is formed between the first slide (211) and the second slide (212). The width of the feeding channel is slightly larger than the width of a single lining plate, so that the lining plates fall smoothly without jamming. The execution end of the ejection mechanism (22) is aligned with the lowest liner in the feeding channel in the horizontal direction. When the ejection mechanism (22) ejects the lowest liner horizontally, the liner above it automatically falls to the ejection position under the action of gravity.

3. A welding machine for square tube liners according to claim 2, characterized in that, The connecting end plate (213) has a feed inlet (214) at the position corresponding to the feeding channel. The width of the feed inlet (214) is the same as the width of the feeding channel, and it is used to supplement the liner plate into the feeding channel through the feed inlet (214). Multiple connecting and reinforcing plates (216) are fixedly connected between the top ends of the first slide (211) and the second slide (212) to enhance the overall structural strength of the storage rack (21).

4. A welding machine for square tube liners according to claim 2, characterized in that, Multiple limiting plates (215) are provided at intervals along the length direction on the outer side of the first slide (211). The lower end of the limiting plate (215) extends downward and beyond the bottom surface of the first slide (211) to limit the liner pushed out by the pushing mechanism (22) and ensure that it is pushed to the predetermined position. The welding robot is mounted on a slide rail assembly (4) driven by a servo motor. It avoids the portion of the liner plate that is blocked by the lower end of the limiting plate (215) when it is limited, and performs spot welding to fix the liner plate and the steel plate.

5. A welding machine for square tube liners according to claim 1, characterized in that, A transverse spacing adjustment mechanism (6) is provided between the liner feeding machine (2). The cylinder body of the pressing cylinder (5) is slidably mounted on the slide rail (7) fixed to the top of the frame (1) by a slider fixed thereon. The transverse spacing adjustment mechanism (6) pushes and pulls the liner feeding machine (2) to both sides to change the spacing between them, so as to adapt to the welding of steel plates of different widths.

6. A welding machine for square tube liners according to claim 1, characterized in that, The end of the transmission roller (3) is provided with a power assembly (8), which drives the transmission roller (3) to rotate, thereby pushing the steel plate to feed and to discharge the steel plate after welding. The power assembly (8) includes a motor and a transmission chain, wherein the motor drives all transmission rollers (3) to rotate synchronously through the transmission chain.

7. A welding machine for square tube liners according to claim 1, characterized in that, An auxiliary feeding pulley group (9) is provided at the feed inlet of the frame (1). The auxiliary feeding pulley group (9) is driven by a power mechanism to swing the end rollers up and down, so that the steel plate placed on it is placed at the feed inlet of the frame (1). The auxiliary feeding pulley group (9) includes a hydraulic cylinder and a hinged roller. The hydraulic cylinder drives the roller to move the steel plate, which is held horizontally, down to an inclined position and slide the steel plate into the frame (1).

8. A welding machine for square tube liners according to claim 1, characterized in that, The welding robot is controlled by a servo system to move in three-dimensional space. The welding torch angle of the welding robot is adjustable to adapt to different welding positions. The welding robot is connected to the control system and automatically adjusts the welding path according to the width of the steel plate and the position of the lining plate.

9. A welding machine for square tube liners according to claim 1, characterized in that, The pressing cylinder (5) is synchronously controlled by the hydraulic system to ensure that the two side liner feeders (2) press down at the same time and evenly press the steel plate; The piston rod end of the pressing cylinder (5) is equipped with a pressure sensor to monitor the pressing force in real time and feed it back to the control system.

10. A welding machine for square tube liners according to claim 5, characterized in that, The lateral spacing adjustment mechanism (6) includes a bidirectional lead screw and a drive motor. The two ends of the bidirectional lead screw are respectively connected to the two side liner feeders (2). The drive motor drives the liner feeders (2) to move towards each other or away from each other by rotating forward and backward. The lateral spacing adjustment mechanism (6) is connected to the control system and automatically adjusts the spacing of the liner feeder (2) according to the input steel plate width.

Images