Automatic production system for steel purlins

Abstract

The invention relates to the technical field of purline polishing, in particular to a steel structure purline automatic production system which comprises a rack, a polishing box with the variable volume is arranged on the rack, the polishing box is filled with polishing sand, and when a purline is inserted into the polishing box, the polishing sand can gradually wrap the purline; a vibration assembly and a turnover assembly are arranged in the polishing box so that polishing sand can vibrate and turn over at the same time, the shape of the purline can be adapted through the polishing mode of the polishing sand, so that all parts are polished, and compared with other polishing modes, the polishing sand can be well attached to the surface of the purline, so that uniform polishing is achieved, and the polishing efficiency is improved. And through the arrangement of the turnover assembly, the polishing sand can continuously turn over while vibrating, and the polishing effect of the polishing sand on the purline is improved.

Description

Technical Field

[0001] The invention relates to the technical field of purlin grinding, and in particular to an automatic production system for steel structure purlins. Background Art

[0002] A grinding and polishing device is a device used to process the surface of various materials to make their surface smoother, flatter or have a specific glossiness. This device is commonly used in metal processing, wood processing, automobile manufacturing and other fields.

[0003] For example, in the field of metal processing, purlins are ground and polished. Purlins are also called purlins and girder. They are horizontal roof beams perpendicular to roof trusses or rafters, used to support rafters or roofing materials. Purlins are transversely bent (usually bidirectionally bent) components, and are generally designed as single-span simply supported purlins. Purlins generally need to be ground after production. Grinding can improve the smoothness and flatness of the purlins, making their surface smoother, which is conducive to later decoration and use. However, as a thin-walled part formed by stamping, the purlin has certain errors in the finished product itself. Common polishing and grinding machines are difficult to control the grinding depth, and may be limited when processing complex shapes, and cannot fit the workpiece surface well, resulting in uneven grinding effects. Summary of the invention

[0004] Based on this, it is necessary to provide an automated production system for steel structure purlins to address the current problem of uneven purlin surface grinding.

[0005] The above purpose is achieved through the following technical solutions: An automated production system for steel structure purlins, comprising: A frame, wherein a polishing box with a variable volume is arranged on the frame, the polishing box is filled with polishing sand, and a feed port is opened on the side wall of the polishing box, and the feed port can be inserted with a purlin; A vibration component, wherein the vibration component can drive the grinding sand to vibrate so as to grind the purlin; A linkage assembly, the linkage assembly can sense the length of the purlin inserted into the polishing box and adjust the volume of the polishing box, and the linkage assembly is configured as follows: When the length of the purlin inserted into the grinding box gradually increases, the volume of the grinding box gradually decreases, and the height of the grinding sand in the grinding box gradually becomes higher than the height of the feed port; When the length of the purlin pulled out of the polishing box gradually increases, the volume of the polishing box gradually increases, and the height of the polishing sand in the polishing box gradually becomes lower than the height of the feed port.

[0006] Furthermore, the linkage assembly includes a friction roller and a transmission wheel, the friction roller is rotatably arranged in the feed port, the purlin is inserted into the feed port and is in friction contact with the friction roller, the transmission wheel is located at both ends of the friction roller, the grinding box has a fixed end and a telescopic end, the fixed end is fixedly arranged on the frame, and a transmission bar is arranged on the telescopic end, the transmission bar is connected to the transmission wheel in transmission, and when the purlin is located at a preset position, the transmission wheel rotates synchronously with the friction roller.

[0007] Furthermore, a first blocking plate and a second blocking plate are rotatably connected to the upper and lower edges of the feed port, a first rotating shaft is fixedly provided at the rotating connection of the first blocking plate, a pulley is rotatably connected to the side edge of the feed port, the pulley is meshed with the rotating connection of the second blocking plate and is connected to the first transmission shaft belt; When the first blocking plate blocks the feed inlet, the second blocking plate is in a horizontal state; When the purlin is inserted into the feed inlet, the second blocking plate and the purlin block the feed inlet, and the first blocking plate is in a horizontal state.

[0008] Furthermore, the friction roller is arranged on one end of the second sealing plate away from the rotating connection position, and a second rotating shaft is rotatably arranged at the rotating connection of the second sealing plate, the second rotating shaft is transmission-connected to the transmission wheel, the two ends of the first rotating shaft are coaxially and fixedly connected with a first transmission gear, the two ends of the second rotating shaft are coaxially and fixedly connected with a second transmission gear, a rack is arranged on the telescopic end, the first transmission gear is meshed with the rack, and after the first sealing plate drives the transmission bar to mesh with the second transmission gear, the first transmission gear is disengaged from the rack.

[0009] Furthermore, a rotating gear is provided in the second blocking plate, and the rotating gear is connected to the transmission wheel belt. The rotating gear can drive the second rotating shaft to rotate. A clamping block is telescopically provided in the rotating shaft of the friction roller. A clamping slot is provided on one end of the transmission wheel close to the friction roller, and the clamping block can be inserted into the clamping slot to drive the transmission wheel to rotate.

[0010] Furthermore, a first wedge block is arranged in the second blocking plate, a second wedge block is arranged on the clamping block, the first wedge block and the second wedge block are in sliding contact, an elastic member is arranged between the clamping block and the rotating shaft of the friction roller, the purlin squeezes the friction roller to push the second wedge block to slide on the first wedge block, and the first wedge block drives the clamping block to enter the clamping groove.

[0011] Furthermore, a connecting plate is provided in the second blocking plate, and the connecting plate can move along the axial direction of the friction roller. The transmission wheel and the rotating gear are respectively located at two ends of the connecting plate, and a compression spring is connected to the side of the connecting plate away from the friction roller.

[0012] Furthermore, the vibration assembly includes a vibration motor, a vibration plate and a vibration spring, the vibration plate is located in the polishing box, the vibration spring connects the lower end of the vibration plate and the bottom of the polishing box, and the vibration motor is fixedly arranged at the lower end of the vibration plate.

[0013] Furthermore, a surging component is arranged on the vibration plate, and the surging component can drive the grinding sand to surge continuously.

[0014] Furthermore, the tumbling assembly includes a transmission belt and a rotating plate, two rotating rollers are rotatably arranged on the vibration plate, the transmission belt is wound around the two rotating rollers, the rotating plate is rotatably arranged between the two rotating rollers, and the rotation of the rotating plate can drive the surface deformation of the transmission belt.

[0015] The beneficial effects of the present invention are: The present invention can adapt to the shape of the purlin by grinding sand, so as to grind various parts. Compared with other grinding methods, grinding sand can fit the surface of the purlin well, so as to grind evenly and improve the smoothness of the purlin surface.

[0016] The present invention provides a surging component so that the grinding sand can be continuously surging while vibrating, thereby improving the grinding effect of the grinding sand on the purlin. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic diagram of the structure of an automated production system for steel purlins provided in one embodiment of the present invention; Figure 2 for Figure 1 A front view of an automated production system for steel purlins provided in an embodiment; Figure 3 for Figure 2 A cross-sectional view along AA of the automated production system for steel structure purlins provided in one embodiment when the purlins are not inserted; Figure 4 for Figure 3 An enlarged view of the X portion of the automated production system for steel structure purlins provided in an embodiment when the purlins are not inserted; Figure 5 for Figure 2 A cross-sectional view along AA when inserting a purlin in an automated production system for steel structure purlins provided in an embodiment; Figure 6 for Figure 5An enlarged view of the X portion when the steel structure purlin automated production system provided in the first embodiment is inserting the purlin; Figure 7 A state diagram of a first blocking plate and a second blocking plate when inserting a purlin in an automated production system for steel structure purlins provided by an embodiment of the present invention; Figure 8 A schematic diagram of the structure of the internal friction roller of the second blocking plate of the steel structure purlin automatic production system provided by one embodiment of the present invention; Fig. 9 for Figure 8 A partial enlarged view of part Y of the automated production system for steel purlins provided in an embodiment; Fig.10 A schematic diagram of the interior of a second blocking plate of an automated production system for steel purlins provided in one embodiment of the present invention; Fig.11 for Fig.10 A partial enlarged view of the Z portion inside the second blocking plate of the steel structure purlin automated production system provided in one embodiment; Fig.12 for Fig. 9 A schematic diagram of the side surface of the friction roller and the transmission wheel of the steel structure purlin automated production system provided in one embodiment; Fig.13 for Fig.12 A schematic diagram of the side of the friction roller and the driving wheel of the steel structure purlin automatic production system provided in an embodiment is a cross-sectional view along BB; Fig.14 for Fig.12 A schematic diagram of the side of the friction roller and the driving wheel of the automated production system for steel purlins provided in one embodiment is a cross-sectional view along CC.

[0018] in: 100, frame; 110, grinding box; 111, feed port; 120, fixed end; 130, telescopic end; 140, transmission bar; 150, rack; 160, tension spring; 200, first blocking plate; 210, first rotating shaft; 220, first transmission gear; 230, pulley; 300, second blocking plate; 310, second rotating shaft; 320, second transmission gear; 330, rotating gear; 340, connecting plate; 350, transmission wheel; 351, slot; 360, groove; 361, spring slot; 370, gear ring; 380, first wedge block; 400, friction roller; 410, slide groove; 420, clamping block; 430, limiting block; 431, protrusion; 440, return spring; 450, second wedge block; 500, vibration plate; 510, vibration motor; 520, vibration spring; 600, transmission belt; 610, rotating roller; 620, rotating plate; 630, tensioning rod; 700. Purlin. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below through embodiments and in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0020] The serial numbers assigned to the components herein, such as "first", "second", etc., are only used to distinguish the objects described and do not have any order or technical meaning. The "connection" and "coupling" mentioned in the present invention, unless otherwise specified, include direct and indirect connections (couplings). In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention.

[0021] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0022] Refer to the following Figure 1-Figure 14 To describe an automated production system for steel structure purlins provided by the present invention.

[0023] An automated production system for steel structure purlins is suitable for grinding and polishing purlins 700 after production, comprising a frame 100, on which a grinding box 110 with a variable volume is arranged, the grinding box 110 is filled with grinding sand, a feed port 111 is provided on the side wall of the grinding box 110 (the feed port 111 is also a discharge port), the purlin 700 to be polished is inserted into the grinding box 110 through the feed port 111, a vibration component is arranged in the grinding box 110, and when the vibration component vibrates, the grinding sand in the grinding box 110 is driven to vibrate continuously, and the inserted purlin 700 is evenly polished by the grinding sand.

[0024] The feed port 111 is provided with a linkage component, which can sense the length of the purlin 700 inserted into the sanding box 110 and can adjust the volume of the sanding box 110. When the purlin 700 is not inserted into the sanding box 110, the volume of the sanding box 110 is at the maximum state, and the height of the sand in the sanding box 110 is lower than the feed port 111, so as to prevent the sand from being discharged from the feed port 111. When the purlin 700 is inserted into the feed port 111, the purlin 700 blocks the feed port 111. When the length of the purlin 700 inserted into the sanding box 110 gradually increases, the linkage component gradually reduces the volume of the sanding box 110. The grinding sand gradually submerges the purlin 700, and the vibrating grinding sand grinds the surface of the purlin 700 to make it smooth. After grinding, the purlin 700 is gradually pulled out from the feed port 111, and the length of the purlin 700 pulled out of the feed port 111 gradually increases. The linkage assembly gradually increases the volume of the grinding box 110, so that the height of the grinding sand in the grinding box 110 gradually decreases. When the purlin 700 is completely separated from the feed port 111, the height of the grinding sand in the grinding box 110 is lower than the height of the feed port 111, thereby preventing the leakage of the grinding sand.

[0025] The present invention can adapt to the shape of the purlin 700 by grinding sand, so as to grind various parts. Compared with other grinding methods, grinding sand can fit the surface of the purlin 700 well, so as to grind evenly and improve the smoothness of the surface of the purlin 700.

[0026] Specifically, in the embodiment of the present invention, the linkage assembly includes a friction roller 400 and a transmission wheel 350. The friction roller 400 is rotatably arranged in the feed port 111. When the purlin 700 is inserted into the feed port 111, the purlin 700 will be in friction contact with the friction roller 400, and the transmission wheel 350 is located at both ends of the friction roller 400. When the purlin 700 moves to a preset position and continues to be inserted into the feed port 111, the friction roller 400 will be in transmission connection with the transmission wheel 350, the purlin 700 drives the friction roller 400 to rotate, the friction roller 400 drives the transmission wheel 350 to rotate, and the transmission wheel 350 can change the grinding box 11 0 volume, the specific changes are as follows: the polishing box 110 has a fixed end 120 and a telescopic end 130, the fixed end 120 of the polishing box 110 is fixedly arranged on the frame 100, and the telescopic end 130 of the polishing box 110 is located below the fixed end 120 and suspended, the telescopic end 130 of the polishing box 110 can be telescoped in the vertical direction, and a transmission bar 140 is fixedly arranged on the outer side wall of the telescopic end 130 of the polishing box 110, the transmission bar 140 extends in the vertical direction, and the transmission bar 140 is transmission-connected with the transmission wheel 350, and when the transmission wheel 350 rotates, it can drive the transmission bar 140 to move in the vertical direction.

[0027] It should be noted that in order to prevent the telescopic end 130 of the polishing box 110 from being affected by gravity and descending too fast during the descent process, Figure 1 and Figure 2 As shown, a tension spring 160 is connected to the telescopic end 130 of the polishing box 110 , and the other end of the tension spring 160 is fixed to the frame 100 .

[0028] For example, when the purlin 700 is not inserted into the sanding box 110, the telescopic end 130 of the sanding box 110 is in an extended state, and the volume of the sanding box 110 is the largest at this time. When the purlin 700 is continuously inserted into the feed port 111, the purlin 700 drives the friction roller 400, and the friction roller 400 drives the transmission wheel 350 to rotate, and the transmission wheel 350 drives the transmission bar 140 to move upward, and the transmission bar 140 drives the telescopic end 130 of the sanding box 110 to move upward to reduce the volume of the sanding box 110, so that the sanding sand in the sanding box 110 gradually wraps the purlin 700.

[0029] More specifically, in order to ensure the sealing of the feed port 111 when the purlin 700 is inserted, a first blocking plate 200 and a second blocking plate 300 are rotatably connected to the upper and lower edges of the feed port 111, and a first rotating shaft 210 is fixedly connected to the rotation connection position of the first blocking plate 200. At the same time, a pulley 230 is rotatably provided on the side edge of the feed port 111. Figure 7 As shown, the pulley 230 is transmission connected with the rotation connection of the second sealing plate 300. It should be noted that a gear ring 370 is fixed to the rotation connection of the second sealing plate 300, and the outer periphery of the pulley 230 has teeth. The teeth of the pulley 230 are meshed with the gear ring 370. At the same time, the pulley 230 is also connected to the first rotating shaft 210 through a belt.

[0030] When the purlin 700 is not inserted into the polishing box 110, the first sealing plate 200 seals the feed port 111, and the second sealing plate 300 at this time extends outwardly outside the discharge port and the second sealing plate 300 is parallel to the ground; when the purlin 700 needs to be polished, it enters the polishing box 110 through the feed port 111, and one end of the purlin 700 is placed on the second sealing plate 300, and the second sealing plate 300 supports the purlin 700, and then the purlin 700 pushes the first sealing plate 200 to rotate inward, that is, the purlin 700 pushes the second sealing plate 300 to rotate inward around the rotation position, and the first rotating shaft 210 of the first sealing plate 200 drives the pulley 230 rotates, and the pulley 230 drives the rotating connection of the second sealing plate 300, so that the second sealing plate 300 rotates upward around the rotating position, and the second sealing plate 300 drives the purlin 700 to rise. When the purlin 700 pushes the first sealing plate 200 to a horizontal state, the second sealing plate 300 is in a vertical state. At this time, the purlin 700 is located in the gap between the first sealing plate 200 and the second sealing plate 300. The size of the gap is the same as the size of the purlin 700, that is, the second sealing plate 300 and the purlin 700 block the feed inlet 111, so that no sand will flow out when the purlin 700 is continuously inserted.

[0031] It should be noted that the friction roller 400 in the present invention is arranged on one end of the second sealing plate 300 away from the rotation position, and a second rotating shaft 310 is rotatably arranged at the rotation connection position of the second sealing plate 300, and the second rotating shaft 310 can be transmission-connected with the transmission wheel 350, and the two ends of the first rotating shaft 210 are coaxial and fixedly provided with a first transmission gear 220, and a rack 150 is arranged on the telescopic end 130 of the grinding box 110. When the first sealing plate 200 blocks the feed inlet 111, the first transmission gear 220 engages with the rack 150, and when the first sealing plate 200 is pushed to rotate by the purlin 700, the first transmission gear 220 drives the telescopic end 130 of the grinding box 110 to rise through the rack 150, and the two ends of the second rotating shaft 310 are coaxial and fixedly provided with a second transmission gear 320, and when the second sealing plate 300 blocks the feed inlet 111, the second transmission gear 320 engages with the transmission bar 140. When the second transmission gear 320 is meshed with the transmission bar 140 , the first transmission gear 220 is disengaged from the rack 150 .

[0032] The purlin 700 is gradually inserted into the feed port 111. When the purlin 700 is inserted into the gap between the first blocking plate 200 and the second blocking plate 300 and blocks the gap, the purlin 700 pushes the friction roller 400 to rotate. The friction roller 400 drives the second rotating shaft 310 to rotate through the transmission wheel 350. The second rotating shaft 310 continues to drive the telescopic end 130 of the grinding box 110 to move upward through the second transmission gear 320 and the transmission bar 140 so that the grinding sand grinds the purlin 700.

[0033] It is understandable that if Figure 7 As shown, the lengths of the first rotating shaft 210 and the second rotating shaft 310 are different, so that the spacings between the two first transmission gears 220 and the two second transmission gears 320 are different, and the transmission bar 140 and the rack 150 are respectively adapted to the spacings between the two second transmission gears 320 and the two first transmission gears 220 to avoid interference.

[0034] Specifically, a groove 360 ​​is provided at the connection position between the friction roller 400 and the second blocking plate 300, the friction roller is located in the groove 360, and a spring is provided in the groove 360. Figure 7-10 As shown, spring grooves 361 are provided at both ends of the groove 360, one end of the spring is fixed in the spring groove 361, and the other end of the spring is rotatably sleeved on the rotating shaft of the friction roller 400. When the purlin 700 is not inserted into the feed port 111, the spring pushes a part of the friction roller 400 to extend out of the groove 360. The extended state is shown in FIG. Figure 7 As shown, when the purlin 700 is inserted into the feed port 111 and the first sealing plate 200 is in a horizontal state, and the second sealing plate 300 is in a vertical state, the purlin 700 is located in the gap between the first sealing plate 200 and the second sealing plate 300, the purlin 700 pushes the friction roller 400, and the friction roller 400 compresses the spring, so that the friction roller 400 has better friction contact with the purlin 700, avoiding the friction roller 400 from being out of contact with the purlin 700.

[0035] More specifically, when the purlin 700 pushes the friction roller 400 so that the friction roller 400 enters the groove 360, the two ends of the friction roller 400 can be connected to the transmission wheel 350, and the friction roller 400 can drive the transmission wheel 350 to rotate. It should be noted that when the purlin 700 does not push the friction roller 400 into the groove 360, the two ends of the friction roller 400 are not connected to the transmission wheel 350, and the two are in a separated state, thereby preventing the purlin 700 and the second sealing plate 300 from driving the telescopic end 130 of the grinding box 110 to rise when the feed port 111 is not blocked.

[0036] To achieve the above functions, blocks 420 are telescopically arranged at both ends of the rotating shaft of the friction roller 400. The blocks 420 can move along the axial direction of the friction roller 400, and a driving wheel 350 is close to one end face of the friction roller 400 and is provided with a slot 351 at the axis. A rotating gear 330 is arranged in the second blocking plate 300. The rotating gear 330 is connected to the driving wheel 350 through a belt. The rotating gear 330 can drive the second rotating shaft 310 to rotate. Specifically, teeth are fixedly arranged on the second rotating shaft 310, and the rotating gear 330 is engaged with the teeth. The rotating gear 330 drives the second rotating shaft 310 to rotate. The second rotating shaft 310 drives the telescopic end 130 of the grinding box 110 to rise through the second transmission gear 320 and the transmission bar 140.

[0037] When the block 420 extends into the slot 351, the friction roller 400 drives the transmission wheel 350 to rotate. Fig.14 As shown, a slide groove 410 is provided on the rotating shaft at both ends of the friction roller 400, and a limiting block 430 is slidably arranged in the slide groove 410. Both ends of the limiting block 430 have protrusions 431, and the protrusions 431 extend out of the slide groove 410 to prevent the limiting block 430 and the rotating shaft of the friction roller 400 from rotating relative to each other, and the clamping block 420 is fixedly connected to the limiting block 430, so that the clamping block 420 can only slide along the axial direction of the friction roller 400, and the shape of the clamping groove 351 on the driving wheel 350 is adapted to the clamping block 420. After the clamping block 420 cooperates with the clamping groove 351, the clamping block 420 can drive the driving wheel 350 to rotate.

[0038] In order to realize that when the purlin 700 squeezes the friction roller 400, both ends of the friction roller 400 can drive the transmission wheel 350 to rotate, a first wedge block 380 is fixedly arranged inside the second blocking plate 300, as shown in FIG. Fig.10 and Fig.11 A second wedge block 450 is provided on the clamp block 420, as shown in FIG. Figure 8 and Fig. 9 As shown, the first wedge block 380 is in sliding contact with the second wedge block 450. When the purlin 700 is not inserted into the feed port 111, the block 420 is away from the slot 351. As the purlin 700 squeezes the friction roller 400, the friction roller 400 moves downward so that the second wedge block 450 of the block 420 slides on the first wedge block 380. The block 420 is inserted into the slot 351 under the action of the first wedge block 380 and the second wedge block 450, so that the friction roller 400 can drive the transmission wheel 350 to rotate.

[0039] It should be noted that a return spring 440 is connected to the limiting block 430. Fig.14As shown, one end of the return spring 440 is fixedly connected to the limiting block 430, and the other end of the return spring 440 is connected to the rotating shaft of the friction roller 400. When the purlin 700 is polished and pulled out from the feed port 111, the friction roller 400 is no longer squeezed by the purlin 700, and the friction roller 400 is reset under the action of the spring. At the same time, the return spring 440 pulls the limiting block 430 away from the transmission wheel 350, that is, the clamping block 420 is disengaged from the clamping groove 351, so that it is not connected to the transmission wheel 350.

[0040] In a further embodiment, a connecting plate 340 is provided in the second blocking plate 300, and the two ends of the connecting plate 340 are respectively connected to the rotating gear 330 and the transmission wheel 350, the connecting plate 340 can move along the axial direction of the friction roller 400, and a spring is provided on the end surface of the sliding plate away from the friction roller 400. It can be understood that when the block 420 is gradually inserted into the card slot 351, the block 420 moves from top to bottom in the vertical direction and from away from the card slot 351 to close to the card slot in the horizontal direction. The card block 420 moves in the direction of the slot 351, so when the card block 420 is not aligned with the slot 351, the card block 420 pushes the transmission wheel 350 to move away from the card block 420. If the position of the transmission wheel 350 is fixed, the transmission wheel 350 will hinder the card block 420 from entering the slot 351. Therefore, the transmission wheel 350 is set on the movable connecting plate 340, so that the transmission wheel 350 can move, thereby preventing the transmission wheel 350 from hindering the card block 420 from entering the slot 351.

[0041] Specifically, the vibration assembly in the embodiment of the present invention includes a vibration motor 510, a vibration plate 500 and a vibration spring 520. The vibration plate 500 is located in the polishing box 110. The two ends of the vibration spring 520 are respectively fixedly connected to the bottom of the polishing box 110 and the lower end surface of the vibration plate 500. Figure 3 As shown, the vibration motor 510 is fixedly connected to the lower end surface of the vibration plate 500, and the grinding sand is distributed on the upper end surface of the vibration plate 500. When the vibration motor 510 is started, the vibration motor 510 drives the vibration plate 500 to vibrate, and the vibration plate 500 further drives the grinding sand to vibrate.

[0042] In a further embodiment, in order to further improve the flatness of the surface of the purlin 700, a surging component is provided on the vibration plate 500, and the surging component can make the sanding sand continuously surging while vibrating.

[0043] Specifically, the surging component includes a transmission belt 600 and a rotating plate 620. Two rotating rollers 610 are rotatably arranged on the vibration plate 500. The transmission belt 600 is wound around the two rotating rollers 610. The two rotating rollers 610 rotate to drive the transmission belt 600 to rotate. The rotating plate 620 is rotatably arranged between the two rotating rollers 610. When the rotating plate 620 rotates, both ends of the transmission belt 600 can push the surface of the transmission belt 600 at the same time, so that the surface of the transmission belt 600 is deformed, so that the transmission belt 600 can drive the grinding sand to surge.

[0044] It should be noted that a motor (not shown in the figure) is disposed on the vibration plate 500 , and the motor drives the two rotating rollers 610 and the rotating plate 620 to rotate.

[0045] In order to ensure that the transmission belt 600 can maintain a tensioned state, a tension rod 630 is arranged between the transmission belts 600, and a compression spring is arranged at one end of the tension rod 630, so that the transmission belt 600 can maintain a tensioned state.

[0046] The specific working process of the automatic production system for steel purlins provided by the present invention is described in combination with the above embodiments: The initial state is Figure 3 As shown, the second sealing plate 300 extends outward and is parallel to the ground, the first sealing plate 200 blocks the feed port 111, the first sealing plate 200 is in a vertical state, the telescopic end 130 of the grinding box 110 is in an extended state, and the height of the grinding sand in the grinding box 110 is lower than the height of the feed port 111.

[0047] Polishing purlin 700: The vibration motor 510 is started, and the vibration motor 510 drives the vibration plate 500 to vibrate, and the vibration plate 500 drives the sand to vibrate. At the same time, the transmission belt 600 and the rotating plate 620 in the sanding box 110 are continuously rotated so that the sand in the sanding box 110 is continuously surging.

[0048] Place one end of the purlin 700 to be polished on the second blocking plate 300, push the purlin 700, the purlin 700 pushes the first blocking plate 200, the first blocking plate 200 rotates around the rotating connection, the first blocking plate 200 drives the first rotating shaft 210 to rotate, the first rotating shaft 210 drives the pulley 230 to rotate, the pulley 230 is engaged with the ring gear 370 at the rotating connection of the second blocking plate 300, while the pulley 230 drives the second blocking plate 300 to rotate, the first transmission gear 220 on the first rotating shaft 210 is engaged with the rack 150 on the telescopic end 130 of the polishing box 110, thereby driving the telescopic end 130 of the polishing box 110 to rise.

[0049] When the first sealing plate 200 rotates to a horizontal position, the second sealing plate 300 rotates to a vertical position. At this time, the height of the sand in the grinding box 110 still does not exceed the feed port 111, and the second transmission gear 320 on the second rotating shaft 310 is engaged with the transmission bar 140 on the telescopic end 130 of the grinding box 110, while the first rotating gear 330 is disengaged from the rack 150. The second blocking plate 300 and the purlin 700 block the feed inlet 111, and the purlin 700 squeezes the friction roller 400 on the second blocking plate 300, and the friction roller 400 is pressed down. The clamping blocks 420 inside the rotating shaft at both ends of the friction roller 400 are inserted into the clamping groove 351 under the action of the first wedge block 380 and the second wedge block 450, so that the friction roller 400 can drive the transmission wheel 350, and the transmission wheel 350 is connected to the rotating gear 330 through a belt. The rotating gear 330 can drive the second rotating shaft 310 to rotate, and the second transmission gears 320 at both ends of the second rotating shaft 310 rotate on the transmission bar 140 to drive the transmission bar 140 to move up, and the transmission bar 140 drives the telescopic end 130 of the grinding box 110 to move up, so that the grinding sand in the grinding box 110 gradually wraps the purlin 700, and the grinding sand continuously vibrates and surges to grind and polish the surface of the purlin 700.

[0050] After grinding, the purlin 700 is pulled out. When pulled out, the purlin 700 drives the friction roller 400 to rotate in the opposite direction, so that the telescopic end 130 of the grinding box 110 moves downward, and the height of the grinding sand in the grinding box 110 gradually becomes lower than the feed inlet 111. When the height of the grinding sand is lower than the feed inlet 111, the two first transmission gears 220 on the first rotating shaft 210 engage with the rack 150, and the telescopic end 130 of the grinding box 110 moves downward to drive the first rotating shaft 210 to rotate. The first rotating shaft 210 drives the first sealing plate 200 to gradually reset. The first rotating shaft 210 drives the rotating connection of the second sealing plate 300 to rotate through the pulley 230, so that the second sealing plate 300 is gradually reset. When the first sealing plate 200 blocks the feed inlet 111, the first sealing plate 200 and the second sealing plate 300 return to their initial state.

[0051] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0052] The above-described embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that, for a person of ordinary skill in the art, several modifications and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the attached claims.

Claims

1. An automated production system for steel purlins, characterized in that: include: A frame, wherein a polishing box with a variable volume is arranged on the frame, the polishing box is filled with polishing sand, and a feed port is opened on the side wall of the polishing box, and the feed port can be inserted with a purlin; A vibration component, wherein the vibration component can drive the grinding sand to vibrate so as to grind the purlin; A linkage assembly, the linkage assembly can sense the length of the purlin inserted into the polishing box and adjust the volume of the polishing box, and the linkage assembly is configured as follows: When the length of the purlin inserted into the grinding box gradually increases, the volume of the grinding box gradually decreases, and the height of the grinding sand in the grinding box gradually becomes higher than the height of the feed port; When the length of the purlin pulled out of the polishing box gradually increases, the volume of the polishing box gradually increases, and the height of the polishing sand in the polishing box gradually becomes lower than the height of the feed port.

2. The automatic production system for steel purlins according to claim 1 is characterized in that: The linkage assembly includes a friction roller and a transmission wheel, the friction roller is rotatably arranged in the feed port, the purlin is inserted into the feed port and is in friction contact with the friction roller, the transmission wheel is located at both ends of the friction roller, the grinding box has a fixed end and a telescopic end, the fixed end is fixedly arranged on the frame, and a transmission bar is arranged on the telescopic end, the transmission bar is connected to the transmission wheel in transmission, and when the purlin is located at a preset position, the transmission wheel rotates synchronously with the friction roller.

3. The automatic production system for steel purlins according to claim 2 is characterized in that: A first blocking plate and a second blocking plate are rotatably connected to the upper and lower edges of the feed port, a first rotating shaft is fixedly provided at the rotating connection of the first blocking plate, a pulley is rotatably connected to the side edge of the feed port, the pulley is meshed with the rotating connection of the second blocking plate and is connected to the first transmission shaft belt; When the first blocking plate blocks the feed inlet, the second blocking plate is in a horizontal state; When the purlin is inserted into the feed inlet, the second blocking plate and the purlin block the feed inlet, and the first blocking plate is in a horizontal state.

4. The automatic production system for steel purlins according to claim 3 is characterized in that: The friction roller is arranged on one end of the second sealing plate away from the rotation connection position, and a second rotating shaft is rotatably arranged at the rotation connection of the second sealing plate, and the second rotating shaft is transmission-connected to the transmission wheel, and the two ends of the first rotating shaft are coaxially and fixedly connected with a first transmission gear, and the two ends of the second rotating shaft are coaxially and fixedly connected with a second transmission gear, and a rack is arranged on the telescopic end, and the first transmission gear is meshed with the rack, and after the first sealing plate drives the transmission bar to mesh with the second transmission gear, the first transmission gear is disengaged from the rack.

5. The automatic production system for steel purlins according to claim 4 is characterized in that: A rotating gear is arranged in the second blocking plate, and the rotating gear is connected to the transmission wheel belt. The rotating gear can drive the second rotating shaft to rotate. A clamping block is telescopically arranged in the rotating shaft of the friction roller. A clamping slot is opened on one end of the transmission wheel close to the friction roller. The clamping block can be inserted into the clamping slot to drive the transmission wheel to rotate.

6. The automatic production system for steel purlins according to claim 5 is characterized in that: A first wedge block is arranged in the second blocking plate, and a second wedge block is arranged on the clamping block. The first wedge block and the second wedge block are in sliding contact, and an elastic member is arranged between the clamping block and the rotating shaft of the friction roller. The purlin squeezes the friction roller to push the second wedge block to slide on the first wedge block, and the first wedge block drives the clamping block to enter the clamping groove.

7. The automatic production system for steel purlins according to claim 6, characterized in that: A connecting plate is arranged inside the second blocking plate, and the connecting plate can move along the axial direction of the friction roller. The transmission wheel and the rotating gear are respectively located at two ends of the connecting plate. A compression spring is connected to the side of the connecting plate away from the friction roller.

8. The automatic production system for steel purlins according to claim 1, characterized in that: The vibration assembly includes a vibration motor, a vibration plate and a vibration spring. The vibration plate is located in the polishing box. The vibration spring connects the lower end of the vibration plate and the bottom of the polishing box. The vibration motor is fixedly arranged at the lower end of the vibration plate.

9. The automatic production system for steel purlins according to claim 8, characterized in that: The vibration plate is provided with a surging component, and the surging component can drive the grinding sand to surge continuously.

10. The automatic production system for steel purlins according to claim 9, characterized in that: The tumbling assembly includes a transmission belt and a rotating plate. Two rotating rollers are rotatably arranged on the vibration plate. The transmission belt is wound around the two rotating rollers. The rotating plate is rotatably arranged between the two rotating rollers. The rotation of the rotating plate can push the surface of the transmission belt to deform.

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