U-shaped beam stacking system

Abstract

The U-shaped beam stacking system comprises a waste material selecting part, a conveying and overturning part, a discharging trolley and a servo crane, U-shaped beams can be moved to the conveying and overturning part after being screened on the waste material selecting part, an overturning mechanism on the conveying and overturning part can drive the U-shaped beams to overturn, and the discharging trolley is used for discharging the U-shaped beams. The servo crane can grab and move the U-shaped beams on the conveying and overturning part to the discharging trolley, whether the U-shaped beams are overturned or not and staggered stacking or positive and negative stacking stacking of the U-shaped beams are achieved according to the stacking requirement, an active overturning arm of the overturning mechanism can replace a pneumatic plate overturning mechanism and double robots, the cost of the whole equipment is greatly reduced, and the working efficiency is improved. And in addition, the U-shaped beams can be stacked on the discharging trolley according to the stacking requirement, the labor intensity of workers is reduced, and the overall stacking operation efficiency is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile girder sorting and stacking equipment, in particular to a U-shaped beam stacking system. Background Art

[0002] At present, the blanking of the U-shaped beam after roll forming generally adopts the blanking roller table (the U-shaped beam opening downward) → servo overhead crane transfer and stacking, and carries out the "pyramid-shaped" stacking method. The number of stacked U-shaped beams is limited, or the stacking method with partitions added between the U-shaped beams on both sides requires manual placement of partitions, which greatly reduces the production efficiency of U-shaped beam blanking. Moreover, there are huge safety hazards for operators to place partitions in the environment where the servo overhead crane transfers the U-shaped beam at high speed. If a pneumatic flap mechanism and a dual robot are used to flip and stagger-stack the U-shaped beams, the above problems can be solved, but the cost investment of the overall equipment and the subsequent maintenance cost are very high. Summary of the Utility Model

[0003] The purpose of the utility model is to provide a U-shaped beam stacking system. The flipping mechanism on the conveying and flipping part can replace the pneumatic flap mechanism and the dual robot to complete the flipping of the U-shaped beam, and can reduce the cost of the equipment, improve the overall production efficiency, and solve the problems in the prior art.

[0004] The technical solution adopted by the utility model to solve its technical problems is: a U-shaped beam stacking system, which includes a waste material selection part, a conveying and flipping part, a discharging trolley and a servo overhead crane. Among them, the waste material selection part is located at one end of the length direction of the conveying and flipping part, the discharging trolley is located on one side of the width direction of the conveying and flipping part, and the servo overhead crane is located above the conveying and flipping part and the discharging trolley. After being screened on the waste material selection part, the U-shaped beam can move onto the conveying and flipping part. The conveying and flipping part can drive the U-shaped beam to flip. The servo overhead crane can grab and move the U-shaped beam on the conveying and flipping part onto the discharging trolley; the waste material selection part includes a first rack, on which a rotatable first conveying roller is installed. On one side of the width direction of the first rack, a number of discharging racks are installed. At one end of each discharging rack close to the first rack, there is an inclined plate. At the end of the discharging rack far from the first rack, there is a baffle. Between the inclined plate and the baffle, there is a horizontal storage plate. On the first rack between the first conveying rollers, a number of waste material tipping mechanisms are also installed. Each waste material tipping mechanism includes a tipping rod, one end of the tipping rod is hinged on the first rack, and a tipping cylinder is also installed on the first rack. The piston rod of the tipping cylinder is hinged on the tipping rod. When the piston rod of the tipping cylinder extends, it can drive the tipping rod to rotate out of the first conveying roller and push the U-shaped beam on the first conveying roller onto the discharging rack; the conveying and flipping part includes a second rack, on which a rotatable second conveying roller is installed. On the second rack between the second conveying rollers, a number of flipping mechanisms are also installed. Each flipping mechanism includes a support, in which a synchronous shaft is installed. On the synchronous shaft, a coaxial arranged active flipping arm and a follower flipping arm are installed in a matching manner. The active flipping arm can rotate following the synchronous shaft, and the follower flipping arm can rotate freely relative to the synchronous shaft. The active flipping arm includes an active sleeve, on which a first active dial rod and a second active dial rod arranged symmetrically in rotation are installed. The follower flipping arm includes a follower sleeve, on which a first follower dial rod and a second follower dial rod arranged symmetrically in rotation are installed. Among them, the inner side surfaces of the first active dial rod and the first follower dial rod correspond to each other, and the inner side surfaces of the second active dial rod and the second follower dial rod are arranged corresponding to each other. On the side of the support far from the second rack, a rack support arm is installed. The active flipping arm and the follower flipping arm are located between the rack support arms. When the active flipping arm rotates, it can drive the U-shaped beam on the second rack to flip and move onto the rack support arm. At the end of the second rack far from the waste material selection part, a rear baffle is also installed; the servo overhead crane includes four vertically arranged overhead crane columns. Between the two overhead crane columns in the length direction, there is a connecting beam. Between the two overhead crane columns in the width direction, there is a guide rail beam. On the guide rail beam, a movable cross beam is installed. On the movable cross beam, a vertically liftable suction cup cross beam is installed. At the bottom of the suction cup cross beam, a number of electromagnetic suction cups are installed. When the electromagnetic suction cups are energized, they can attract and grab the U-shaped beam.A positioning and guiding device and a movable guiding device are installed on the second frame of the conveying and turning part. The positioning and guiding device and the movable guiding device are respectively arranged on both sides in the width direction of the second frame. The positioning and guiding device includes a positioning seat fixed on the second frame, and a first roller is installed in the positioning seat. The movable guiding device includes a telescopic cylinder and a guiding rail. A movable seat is installed in a matching manner on the guiding rail, and a second roller is installed on the movable seat. The piston rod of the telescopic cylinder is connected to the movable seat through a connecting frame. The telescopic movement of the piston rod of the telescopic cylinder can drive the second roller to move closer to or away from the first roller. A turning speed reducer is installed on the second frame. A first sprocket is installed on the output shaft of the turning speed reducer. A connecting sleeve is installed in a matching manner between the synchronous shafts of each turning mechanism. A second sprocket is installed on the synchronous shaft. A transmission chain is installed in a matching manner between the first sprocket and the second sprocket. When the turning speed reducer is started, it can drive the active turning arms of each turning mechanism to rotate synchronously. A matching keyway is installed between the active sleeve and the synchronous shaft, and a flat key is installed in the keyway. The active sleeve can rotate synchronously with the synchronous shaft. A bearing is installed between the follower sleeve and the synchronous shaft, and the follower sleeve can rotate freely relative to the synchronous shaft. The discharging trolley includes a vehicle body, and moving wheels are installed at the bottom of the vehicle body. A plurality of stacking frames are arranged in the length direction of the vehicle body. Each stacking frame includes a rectangular tube arranged on the vehicle body, and vertical channel steels are arranged on both sides of the rectangular tube. A first rack and a transverse movement guide rail are installed in the length direction of the guide beam. A transverse movement motor is installed on the moving cross beam. A first gear meshing with the first rack is installed on the output shaft of the transverse movement motor. Transverse movement sliders matching with the transverse movement guide rail are arranged at both ends in the length direction of the moving cross beam. When the transverse movement motor is started, it can drive the moving cross beam to move in the length direction of the guide beam. A lifting motor is installed on the moving cross beam. A second gear is installed on the output shaft of the lifting motor. A second vertically arranged second rack is installed at the end in the length direction of the suction cup cross beam. The second gear meshes with the second rack. A protective cover is installed at the end in the length direction of the moving cross beam. The second gear and the second rack are installed in the protective cover in a matching manner. A guiding column is further installed on the suction cup cross beam, and a guiding sleeve matching with the guiding column is arranged on the moving cross beam. When the lifting motor is started, it can drive the suction cup cross beam to lift vertically relative to the moving cross beam. A T-shaped rail is arranged in the length direction at the bottom of the suction cup cross beam. A plurality of object detecting rods and sliding blocks are installed on the T-shaped rail. A connecting plate is arranged on the electromagnetic suction cup. Connecting bolts are installed between both sides of each sliding block and the connecting plate. Springs are sleeved on the outer periphery of the connecting bolts between the connecting plate and the sliding blocks. A plurality of washers are installed at one end of the connecting bolts protruding upward through the sliding blocks, and the washers are located between the nuts and the sliding blocks.

[0005] The positive effects of the present utility model are as follows: A U-shaped beam stacking system of the present utility model includes a waste material selection part, a conveying and flipping part, a discharging trolley, and a servo overhead crane. After being screened on the waste material selection part, the U-shaped beam can move onto the conveying and flipping part. The flipping mechanism on the conveying and flipping part can drive the U-shaped beam to flip. The servo overhead crane can grab and move the U-shaped beam on the conveying and flipping part onto the discharging trolley, and can realize whether to flip the U-shaped beam and the staggered or positive / negative stacking of the U-shaped beams according to the stacking requirements. Among them, the active flipping arm in the flipping mechanism can replace the pneumatic flap mechanism and the dual robots, greatly reducing the cost of the overall equipment, and can stack the U-shaped beams onto the discharging trolley according to the stacking requirements, reducing the labor intensity of workers and effectively improving the efficiency of the overall stacking operation. Brief Description of the Drawings

[0006] Figure 1 is the three-dimensional structure schematic diagram of the present utility model;

[0007] Figure 2 is the side view of the present utility model;

[0008] Figure 3 is the structure schematic diagram of the waste material selection part;

[0009] Figure 4 is the structure schematic diagram of the conveying and flipping part;

[0010] Figure 5 is the structure schematic diagram of two groups of flipping mechanisms and the flipping reduction gear;

[0011] Figure 6 is the installation schematic diagram of the active flipping arm on the synchronous shaft;

[0012] Figure 7 is the installation schematic diagram of the follower flipping arm on the synchronous shaft;

[0013] Figure 8 is the structure schematic diagram of the servo overhead crane;

[0014] Figure 9 is the structure schematic diagram of the positioning and guiding device and the movable guiding device arranged on the conveying and flipping part;

[0015] Figure 10 is the structure schematic diagram of the discharging trolley;

[0016] Figure 11 is the top view of the servo overhead crane;

[0017] Figure 12 is Figure 11 the enlarged view of the A-A sectional view in

[0018] Figure 13 is Figure 11Enlarged view of the sectional view taken along line B-B;

[0019] Figure 14 is Figure 11 Enlarged view of the sectional view taken along line C-C;

[0020] Figure 15 Schematic structural diagram of an electromagnetic chuck provided at the bottom of the suction cup crossbeam;

[0021] Figure 16 Schematic diagram of the state where the U-shaped beam is located above the active flipping arm;

[0022] Figure 17 Schematic diagram of the intermediate state of rotating the flipping arm to flip the U-shaped beam;

[0023] Figure 18 Schematic diagram of the state where the rotating flipping arm flips the U-shaped beam onto the frame support arm. Specific implementation mode

[0024] A U-shaped beam stacking system according to the present utility model, as Figure 1 and Figure 2 shown, includes a waste material selection part 5, a conveying and flipping part 1, a discharging trolley 3 and a servo overhead crane 2. Among them, the waste material selection part 5 is located at one end of the conveying and flipping part 1 in the length direction, the discharging trolley 3 is located on one side of the conveying and flipping part 1 in the width direction, the servo overhead crane 2 is located above the conveying and flipping part 1 and the discharging trolley 3. After being screened on the waste material selection part 5, the U-shaped beam 4 can move onto the conveying and flipping part 1. The conveying and flipping part 1 can drive the U-shaped beam 4 to flip, and the servo overhead crane 2 can grab and move the U-shaped beam 4 on the conveying and flipping part 1 onto the discharging trolley 3, and realize the stacking operation of the U-shaped beam 4 on the discharging trolley 3.

[0025] As Figure 3 shown, the waste material selection part 5 includes a first frame 50, and a rotatable first conveying roller 51 is installed on the first frame 50. The first conveying roller 51 can be uniformly driven by a motor through a chain to realize the corresponding conveying function of the U-shaped beam 4 on the waste material selection part 5.

[0026] To realize the selection of waste materials, a plurality of discharging racks 52 are installed on one side of the first frame 50 in the width direction. One end of each discharging rack 52 close to the first frame 50 is provided with an inclined plate 53, and a baffle 54 is provided at the end of the discharging rack 52 far from the first frame 50. A horizontal storage plate 55 is provided between the inclined plate 53 and the baffle 54, and the selected waste materials can be temporarily stored on the horizontal storage plate 55.

[0027] On the first frame 50 between the first conveying rollers 51, several waste tipping mechanisms are also installed. Each waste tipping mechanism includes a tipping rod 56. One end of the tipping rod 56 is hinged to the first frame 50. A tipping cylinder 57 is also installed on the first frame 50. The piston rod of the tipping cylinder 57 is hinged to the tipping rod 56. When the piston rod of the tipping cylinder 57 extends, it can drive the tipping rod 56 to rotate and move out of the first conveying rollers 51, and push the U-shaped beam 4 on the first conveying rollers 51 onto the discharging rack 52.

[0028] After the U-shaped beam 4 is transferred from the previous production line to the waste selection section 5, if the U-shaped beam 4 is of qualified quality, the tipping rod 56 is located on the first frame 50 and will not tip and move out. Driven by the first conveying rollers 51, the qualified U-shaped beam 4 will be transferred to the conveying and flipping section 1. If the U-shaped beam 4 is unqualified, it cannot be transferred to the conveying and flipping section 1. Driven by the tipping cylinder 57, the tipping rod 56 will flip and push the unqualified U-shaped beam 4 onto the discharging rack 52. Under the guidance of the inclined plate 53, it will finally fall onto the horizontal storage plate 55. After storing a set number, it can be uniformly recycled through the transfer device.

[0029] As Figures 4 - 7 As shown in the figure, the conveying and flipping section 1 includes a second frame 11. A rotatable second conveying roller 12 is installed on the second frame 11, which plays a role in conveying the U-shaped beam 4. Several flipping mechanisms are also installed on the second frame 11 between the second conveying rollers 12. The flipping mechanisms can realize the flipping operation of the U-shaped beam 4. Each flipping mechanism includes a support 112. The support 112 is fixedly arranged on the second frame 11. A synchronous shaft 17 is installed in the support 112. A coaxial arranged active flipping arm 15 and a follower flipping arm 16 are installed on the synchronous shaft 17. Among them, the active flipping arm 15 can rotate following the synchronous shaft 17, and the follower flipping arm 16 can rotate freely relative to the synchronous shaft 17.

[0030] The active flipping arm 15 includes an active sleeve 150. Rotationally symmetrically arranged first active dial rods 151 and second active dial rods 152 are installed on the active sleeve 150. The follower flipping arm 16 includes a follower sleeve 160. Rotationally symmetrically arranged first follower dial rods 161 and second follower dial rods 162 are installed on the follower sleeve 160. Among them, the inner side surfaces of the first active dial rod 151 and the first follower dial rod 161 correspond to each other, and the inner side surfaces of the second active dial rod 152 and the second follower dial rod 162 are installed corresponding to each other.

[0031] A frame support arm 111 is installed on one side of the support 112 away from the second frame 11. The active flipping arm 15 and the follower flipping arm 16 are located between the frame support arms 111. When the active flipping arm 15 rotates, it can drive the U-shaped beam 4 on the second frame 11 to flip and move onto the frame support arm 111.

[0032] At one end of the second rack 11 far from the waste selection section 5, a rear baffle 19 is also installed. After the U-shaped beam 4 is transported and flipped by the conveying and flipping section 1 and contacts the rear baffle 19, the conveying stops. According to the palletizing requirements, the flipping mechanism is controlled to act to flip the U-shaped beam 4 on the conveying and flipping section 1. Generally, the U-shaped beam 4 is transported with the opening facing downwards. If it is required to have the opening of the U-shaped beam 4 facing downwards during palletizing, after the U-shaped beam 4 moves into place, the servo overhead crane 2 directly grabs and transfers the U-shaped beam 4 to the discharging trolley 3 for palletizing. If it is required to have the opening of the U-shaped beam 4 facing upwards during palletizing, after the U-shaped beam 4 moves into place, the flipping mechanism acts to flip the U-shaped beam 4 on the conveying and flipping section 1 onto the rack support arm 111. Then, the servo overhead crane 2 grabs the flipped U-shaped beam 4 and transfers it to the discharging trolley 3 for palletizing operation.

[0033] Regarding the flipping operation of the U-shaped beam 4 by the flipping mechanism, as Figures 16 - 18 shown, the U-shaped beam 4 with the opening facing downwards is transported on the second conveying roller 12, and the active flipping arm 15 rotates counterclockwise in the Figure 16 shown direction. The second active dial rod 152 contacts the U-shaped beam 4, and as the active flipping arm 15 continues to rotate, it drives the U-shaped beam 4 to separate from the second conveying roller 12. Then, the second active dial rod 152 drives the U-shaped beam 4 to rotate until it contacts the first follower dial rod 161 of the follower flipping arm 16. Under the action of the gravity of the U-shaped beam 4, the first follower dial rod 161 rotates onto the rack support arm 111, and the U-shaped beam 4 after flipping falls onto the rack support arm 111. After the flipped U-shaped beam 4 is grabbed and transferred, the follower flipping arm 16 no longer receives the pressure of the U-shaped beam 4 and thus rotates back to its original position. Driven by power, the active flipping arm 15 also rotates to its initial position to avoid interfering with the transportation of the next U-shaped beam 4 and to prepare for flipping the next U-shaped beam 4. Repeating the above steps can achieve the continuous flipping operation of feeding the U-shaped beam 4.

[0034] As Figure 8 shown, the servo overhead crane 2 includes four vertically arranged overhead crane columns 21. A connecting beam 28 is provided between the two overhead crane columns 21 in the length direction, and a guide rail beam 22 is provided between the two overhead crane columns 21 in the width direction. A movable moving crossbeam 23 is installed on the guide rail beam 22, and a vertically liftable suction cup crossbeam 26 is installed on the moving crossbeam 23. A number of electromagnetic suction cups 27 are installed at the bottom of the suction cup crossbeam 26. When the electromagnetic suction cups 27 are energized, they can attract and grab the U-shaped beam 4, and through the lateral movement on the guide rail beam 22 and the vertical lifting of the electromagnetic suction cups 27, the transfer of the U-shaped beam 4 between the conveying and flipping section 1 and the discharging trolley 3 is realized.

[0035] Furthermore, in order to achieve the positioning and guiding transportation of the U-shaped beam 4 on the transportation and turning part 1, and prevent twisting or skewing during transportation, which may lead to the inability to perform subsequent turning operations, a positioning and guiding device 13 and a movable guiding device 14 are installed on the second frame 11 of the transportation and turning part 1. As Figure 9 shown, the positioning and guiding device 13 and the movable guiding device 14 are respectively arranged on both sides of the second frame 11 in the width direction. The positioning and guiding device 13 includes a positioning seat 130 fixed on the second frame 11, and a first roller 131 is installed in the positioning seat 130. The movable guiding device 14 includes a telescopic cylinder 140 and a guiding rail 141. A movable seat 142 is fitted and installed on the guiding rail 141, and a second roller 143 is installed on the movable seat 142. The piston rod of the telescopic cylinder 140 is connected to the movable seat 142 through a connecting frame 144. The telescopic movement of the piston rod of the telescopic cylinder 140 can drive the second roller 143 to move closer to or away from the first roller 131.

[0036] Among them, the positioning and guiding device 13 serves as the reference limit during the transportation of the U-shaped beam 4, and the movable guiding device 14 can be adaptively adjusted according to different width types of the U-shaped beam 4 to ensure that the U-shaped beam 4 is positioned and transported between the first roller 131 and the second roller 143, so as to ensure subsequent turning operations.

[0037] Furthermore, in order to achieve the synchronous rotation drive of each turning mechanism and enable several turning mechanisms on a U-shaped beam 4 to perform synchronous turning actions, a turning reduction gear 110 is installed on the second frame 11. A first sprocket 113 is installed on the output shaft of the turning reduction gear 110. A connecting sleeve 18 is fitted and installed between the synchronous shafts 17 of each turning mechanism, and a second sprocket 114 is installed on the synchronous shaft 17. A transmission chain 115 is fitted and installed between the first sprocket 113 and the second sprocket 114. When the turning reduction gear 110 is started, it can drive the active turning arms 15 of each turning mechanism to rotate synchronously.

[0038] Furthermore, in order to achieve the installation of the active turning arm 15 and the follower turning arm 16 on the synchronous shaft 17, and ensure that the synchronous shaft 17 can drive the active turning arm 15 to rotate and the follower turning arm 16 can rotate freely relative to the synchronous shaft 17, a keyway 153 is installed between the active sleeve 150 and the synchronous shaft 17, and a flat key 154 is installed in the keyway 153. The active sleeve 150 can rotate synchronously with the synchronous shaft 17. A bearing 163 is installed between the follower sleeve 160 and the synchronous shaft 17, and the follower sleeve 160 can rotate freely relative to the synchronous shaft 17.

[0039] Furthermore, as Figure 10As shown, the discharging trolley 3 includes a vehicle body 30, and moving wheels 31 are installed at the bottom of the vehicle body 30. After palletizing is completed, the discharging trolley 3 with the U-shaped beam 4 can move to the set storage position by itself, and the vacant discharging trolley 3 can automatically move to the bottom of the servo overhead crane 2 to fill the vacant position. To facilitate the formation of palletizing limit and palletizing support for the U-shaped beam 4 on the discharging trolley 3, a number of palletizing racks are provided in the length direction of the vehicle body 30. Each palletizing rack includes a rectangular tube 32 arranged on the vehicle body 30, and vertical channel steels 33 are arranged on both sides of the rectangular tube 32. The U-shaped beams 4 are palletized and stacked between the channel steels 33 on both sides on the rectangular tube 32.

[0040] Further, to realize the movement of the moving crossbeam 23 on the guide beam 22, as Figure 11 and 12 shown, a first rack 220 and a transverse movement guide 236 are installed in the length direction of the guide beam 22. A transverse movement motor 230 is installed on the moving crossbeam 23, and a first gear 231 meshing with the first rack 220 is installed on the output shaft of the transverse movement motor 230. Transverse movement sliders 237 cooperating with the transverse movement guide 236 are provided at both ends in the length direction of the moving crossbeam 23. Starting the transverse movement motor 230 can drive the moving crossbeam 23 to move in the length direction of the guide beam 22.

[0041] Further, to realize the vertical lifting movement of the suction cup crossbeam 26, as Figure 13 and 14 shown, a lifting motor 24 is installed on the moving crossbeam 23, and a second gear 233 is installed on the output shaft of the lifting motor 24. A second vertically arranged second rack 234 is installed at the end in the length direction of the suction cup crossbeam 26. The second gear 233 meshes with the second rack 234. A protective cover 232 is installed at the end in the length direction of the moving crossbeam 23. The second gear 233 and the second rack 234 are installed in the protective cover 232 in a cooperative manner. Starting the lifting motor 24 can drive the suction cup crossbeam 26 to vertically lift relative to the moving crossbeam 23.

[0042] To ensure the stability of the vertical lifting of the suction cup crossbeam 26 relative to the moving crossbeam 23, a guide post 25 is further installed on the suction cup crossbeam 26, and a guide sleeve 235 cooperating with the guide post 25 is provided on the moving crossbeam 23.

[0043] The grasping of the U-shaped beam 4 by the servo overhead crane 2 is realized by the energization of the electromagnetic suction cup 27 to contact the U-shaped beam 4. A number of electromagnetic suction cups 27 are installed at the bottom of the servo overhead crane 2. To be able to adaptively adsorb and grasp U-shaped beams 4 of different lengths, and to form a buffer for the collision contact between the electromagnetic suction cup 27 and the U-shaped beam 4, as Figure 15As shown, a T-shaped rail 260 is provided in the length direction at the bottom of the sucker cross beam 26. A number of object detecting rods 261 and sliding blocks 262 are installed on the T-shaped rail 260. A connecting plate 263 is provided on the electromagnetic sucker 27. Connecting bolts 264 are installed between both sides of each sliding block 262 and the connecting plate 263. A spring 265 is sleeved on the outer periphery of the connecting bolt 264 between the connecting plate 263 and the sliding block 262. A number of washers 266 are installed at one end of the connecting bolt 264 that passes upward through the sliding block 262. The washers 266 are located between the nut and the sliding block 262.

[0044] Among them, the sliding block 262 can be locked on the T-shaped rail 260 by screws, and the distribution of a number of electromagnetic suckers 27 in the length direction at the bottom of the sucker cross beam 26 can be adjusted according to the length of the U-shaped beam 4 itself, ensuring sufficient attraction and grasping of the U-shaped beam 4. The setting of the spring 265 enables elastic floating when the electromagnetic sucker 27 contacts the U-shaped beam 4 and realizes a certain degree of buffering, thereby prolonging the service life of the electromagnetic sucker 27 and reducing the damage to the U-shaped beam 4. The number of washers 266 can be set accordingly as needed. The more the number of washers 266, the smaller the distance between the electromagnetic sucker 27 and the sliding block 262, and the greater the initial compression elastic force of the spring 265 itself.

[0045] Furthermore, regarding the U-shaped beam stacking system of the present utility model, its structure can also be described as follows:

[0046] The conveying and flipping part 1 and the waste material selection part 5 can both adopt a frame welded by rectangular tubes. There are floor adjusting bolts at the bottom of the frame, and a conveying roller with a single-sided sprocket is installed on the upper part. The conveying rollers are installed on the frame above by pedestal bearings on both sides. The power is transmitted between the conveying rollers by a sprocket and chain structure. There is a reduction motor in the middle part of the two frame parts, and the power is transmitted to the two adjacent conveying roller paths through the sprocket and chain mechanism.

[0047] A number of flipping mechanisms are provided on the conveying and flipping part 1 and are connected by a synchronous shaft 17 in the middle to realize the synchronous flipping movement of the reversing arms. The flipping mechanisms and the conveying rollers are arranged in a cross pattern; in the middle part of the number of flipping mechanisms, a reduction motor is installed and fixed on the frame. The reduction motor drives the flipping arm to rotate through the sprocket and chain drive, realizing the flipping of the U-shaped beam.

[0048] The servo crane 2 can also be composed of four parts: an elevated track, a servo transverse mechanism, an upgrade mechanism, and an electromagnetic suction cup. The elevated track part is a welded elevated frame, with linear guides and racks installed on the top surface of each side of the frame; the servo transverse mechanism is a beam welded from profiles, with the transverse transmission power part installed on one side: the transverse reducer is installed in the middle of the beam, and the two output shafts of the reducer transmit power to the gear shafts on both sides through couplings and synchronous shafts. The rotation of the reducer drives the gear shafts on both sides to rotate, and the fixed rack fixed on the elevated frame is moved, so that the transverse beam moves laterally along the elevated linear guide;

[0049] The frequency conversion upgrade mechanism is installed between the moving beam and the suction cup beam, and is composed of 4 groups of guide columns. The guide columns on both sides are guide columns with racks, and the two middle groups of guide columns (without processed racks) only play a lifting and lowering guide role. The lifting reducer is installed in the middle of the beam. The two output shafts of the reducer transmit power to the gear shafts on both sides through the coupling and the synchronous shaft. The rotation of the reducer drives the gear shafts on both sides to rotate, driving the guide columns with racks on both sides to complete the lifting function of the suction cup beam. The electromagnetic suction cup part consists of multiple groups of electromagnetic suction cups suspended on the suction cup beam, and the electromagnetic suction cup can move on the suction cup beam according to actual needs.

[0050] The conveying turning part 1 and the unloading trolley 3 are placed within the coverage of the servo crane 2, so as to realize the U-shaped beam 4 from the unloading conveying roller or from the frame support arm. Generally, the U-shaped beam on the unloading conveying roller is opened downward, and the U-shaped beam on the frame support arm is opened upward. Transfer to the unloading trolley 3 for stacking, according to production needs, the unloading trolley 3 can be stacked with the openings facing downward or upward, or the unloading trolley 3 of one layer can be opened downward, and the unloading trolley 3 of the next layer can be opened upward, and the stacking can be cross-stacked.

[0051] The conveying and turning part 1 realizes the conveyance of the U-shaped beam 4 and turns the U-shaped beam 4 from the unloading conveying roller to the frame supporting arm 111, thereby realizing the transformation of the U-shaped beam from opening downward to opening upward.

[0052] The bottom of the frame can be installed with foot adjustment bolts to adjust the flatness of the main line on the roller table on the frame, as well as the geometric accuracy such as the straightness; the two ends of a single conveyor roller can be fixed on the mounting surface of the frame with two disc seat bearings, and the outer shaft head of the conveyor roller is installed with a double row of sprockets, and the adjacent conveyor rollers realize power transmission through the sprocket chain structure. According to the actual needs of conveying the U-shaped beam 4, multiple sets of frames can also be spliced ​​and used; in the middle part of the frame, a conveying reducer is installed, and a sprocket is installed on the output shaft of the conveying reducer. The power is transmitted to the sprockets of the two nearest conveyor rollers through the chain, so that the conveying reducer drives all conveyor rollers to rotate in the same direction, realizing the function of conveying the U-shaped beam 4.

[0053] At the tail end in the incoming material direction on the rack, there is a rear stop plate 19 and an electrical material detection switch. The flipping part is composed of multiple groups of flipping arms. Each group of flipping arms is installed crosswise with the conveying rollers, and the number of groups and the spacing of the flipping arms can be reasonably arranged according to the parameters of the U-shaped beam to be flipped.

[0054] Each group of flipping arms of the flipping mechanism can be composed of a driving flipping arm 15, a follower flipping arm 16, a self-made bearing with seat, a flipping shaft, etc.; there is an interference fit between the flipping shaft and the shaft hole of the driving flipping arm 15, and there is a flat key between the flipping shaft and the driving flipping arm 15, so the flipping shaft can drive the driving flipping arm 15 to rotate; there are two sets of bearings installed in the inner hole of the follower flipping arm 16 and fixed on the rotating shaft. The follower flipping arm 16 can rotate around the rotating shaft, but the rotating shaft cannot drive the follower flipping arm to rotate; each group of flipping arms is fixed to the upper mounting surface of the rack 11 with two self-made bearings with seat. The shaft shoulder or spacer sleeve on the rotating shaft is fixed to the self-made bearing with seat for axial positioning and fixation; key grooves are processed on the shaft heads at both ends of the rotating shaft, and adjacent flipping arms are connected in series through a connecting sleeve 18 and a synchronizing shaft 17; in the middle part of multiple groups of flipping arms, a flipping speed reducer 110 is installed. The flipping speed reducer 110 is installed and fixed on the rack. A sprocket is installed on the output shaft of the flipping speed reducer 110, and a sprocket is installed on the synchronizing shaft 17. Power is transmitted to the synchronizing shaft through a chain; the flipping speed reducer 110 drives all the driving flipping arms 15 to rotate around the rotating shaft together, and the U-shaped beam 4 is flipped from the conveying rollers to the rack support arm 111.

[0055] The servo overhead crane 2 adopts a four-column elevated structure. The guide rail beam 22 is fixed to the two overhead crane columns 21 with bolts, and the two guide rail beams 22 are connected together with two connecting beams 28 to form a basic framework; linear guides and racks are installed on both sides of the guide rail beam 22. The moving cross beam 23 is fixed to the linear guide sliders of the guide rail beam 22, and the moving cross beam 23 establishes a guiding relationship with the guide rail beams 22 on both sides; a transverse movement speed reducer is installed in the middle of the moving cross beam 23, and power is transmitted to the gear shafts on both sides through a synchronizing shaft and a coupling. The rotation of the gears drives the racks on the guide rail beam 22, and the transverse movement of the moving cross beam 23 is realized.

[0056] The electromagnetic chuck 27 is installed and fixed on the chuck cross beam 26. The number of electromagnetic chucks 27 is determined according to the parameters of the transported U-shaped beam 4, and the electromagnetic chuck 27 can be moved and fixed at a fixed position according to actual needs.

[0057] The discharging trolley 3 is welded by profiles, and multiple groups of wheels are installed at the bottom, and it can be designed to be installed with or without rails according to user requirements. The number of discharging trolleys 3 is arranged according to the production rhythm requirements. Generally, at least 2 discharging trolleys are arranged. One is for stacking, and the other is for packing and transporting the stacked U-shaped beams. The two discharging trolleys 3 work alternately to improve the overall blanking production rhythm and efficiency of the U-shaped beam 4.

[0058] During operation, the segmented U-shaped beams 4 are conveyed backward through the blanking roller path section. An electric material detection device is installed near the rear stop plate 19 of the blanking roller path. Its functions are, on the one hand, to detect whether there are U-shaped beams on the conveying roller path, and on the other hand, to decelerate the conveyed U-shaped beams to reduce the impact of the U-shaped beams on the rear stop, thus realizing the smooth and safe conveyance of the U-shaped beams.

[0059] When the U-shaped beam 4 is conveyed on the blanking conveying roller path, the turning surface of the active turning arm 15 is in a state parallel to the upper bus of the conveying roller, and the follower turning arm is in a free vertical state (i.e., determined by the structural mass attribute of the follower turning arm itself); after the conveyance is completed, according to the stacking requirements, it can be directly transported away by the servo overhead crane, or the turning operation of the U-shaped beam can be carried out.

[0060] The turning operation of the U-shaped beam 4 can be described as follows: After receiving the instruction, first detect whether there is a U-shaped beam on the blanking conveying roller path, whether the U-shaped beam is conveyed in place, and there is no U-shaped beam on the rack support arm. After meeting these three conditions, the turning reducer 110 is started, and the active turning arm 15 drives the U-shaped beam to turn to the specified position, and the position is controlled by a proximity switch. The active turning arm 15 stops turning and remains stationary. Under the action of its own weight, the U-shaped beam quickly slides onto the follower turning arm 16. Under the action of the gravity of the U-shaped beam, the follower turning arm drives the U-shaped beam to fall onto the rack support arm 111. Subsequently, under the action of its own weight, the follower turning arm quickly rotates to an approximately vertical state; after the rack support arm 111 detects that there is a U-shaped beam, according to the production needs, the servo overhead crane 2 is started to transport the U-shaped beam on the rack support arm 111 away and stack it on the discharge trolley 3; after the rack support arm 111 detects that there is no workpiece, then the upper computer gives an instruction to start the turning reducer 110 to make the turning surface of the active turning arm 15 in a state parallel to the upper bus of the conveying roller, and then stop and remain stationary (the position of the active turning arm is controlled by a proximity switch). Then, according to the production needs, the function of turning the U-shaped beam is completed in a cycle.

[0061] The specific stacking function is as follows. According to the production needs, the servo overhead crane transports the U-shaped beam on the blanking conveying roller path or on the rack support arm 111 to the discharge trolley, and automatically calculates the data required for the movement of the servo overhead crane according to the dimensional parameters of the U-shaped beam for automatic stacking. According to the production needs, and the dimensional parameters of the U-shaped beam and the operating parameters of the equipment, the functions of blanking and stacking of the U-shaped beam are automatically completed, reducing the production cost, reducing the repetitive labor of the operators, and improving the production efficiency.

[0062] The technical solution of the present utility model is not limited to the scope of the embodiments described in the present utility model. The technical content not described in detail in the present utility model is all well-known technologies.

Claims

1. A U-beam stacking system, characterized in that: The invention comprises a waste material selection part (5), a conveying and turning part (1), a discharge trolley (3) and a servo crane (2), wherein the waste material selection part (5) is located at one end of the conveying and turning part (1) in the length direction, the discharge trolley (3) is located at one side of the conveying and turning part (1) in the width direction, the servo crane (2) is located on the upper side of the conveying and turning part (1) and the discharge trolley (3), the U-shaped beam (4) can be moved to the conveying and turning part (1) after being screened on the waste material selection part (5), the conveying and turning part (1) can drive the U-shaped beam (4) to turn, and the servo crane (2) can grab the U-shaped beam (4) on the conveying and turning part (1) and move it to the discharge trolley (3); The waste sorting section (5) comprises a first frame (50), a first rotatable conveying roller (51) is mounted on the first frame (50), a plurality of discharging frames (52) are mounted on one side of the first frame (50) in the width direction, an inclined plate (53) is provided at one end of each discharging frame (52) close to the first frame (50), a baffle plate (54) is provided at one end of the discharging frame (52) away from the first frame (50), a horizontal storage plate (55) is provided between the inclined plate (53) and the baffle plate (54), and a storage plate (55) is provided between the first conveying roller (51). A plurality of waste tipping mechanisms are also mounted on the first frame (50), each of which comprises a tipping rod (56), one end of which is hinged on the first frame (50); a tipping cylinder (57) is also mounted on the first frame (50), a piston rod of the tipping cylinder (57) is hinged on the tipping rod (56), and the extension of the piston rod of the tipping cylinder (57) can drive the tipping rod (56) to rotate and move out of the first conveying roller (51), and push the U-shaped beam (4) on the first conveying roller (51) onto the discharge frame (52); The conveying and flipping part (1) comprises a second frame (11), on which a rotatable second conveying roller (12) is mounted, and a plurality of flipping mechanisms are mounted on the second frame (11) between the second conveying rollers (12), each flipping mechanism comprising a support (112), in which a synchronous shaft (17) is mounted, and on which a coaxially arranged active flipping arm (15) and a follower flipping arm (16) are mounted, the active flipping arm (15) can rotate following the synchronous shaft (17), and the follower flipping arm (16) can rotate freely relative to the synchronous shaft (17), the active flipping arm (15) comprising an active sleeve (150), on which a rotationally symmetrically arranged first active lever (151) and a second active lever (152) are mounted, and the follower flipping arm (150) is provided with a plurality of rotating shafts (112). 6) comprising a follower sleeve (160), on which a first follower lever (161) and a second follower lever (162) are mounted in rotationally symmetrical arrangement, wherein the first active lever (151) corresponds to the inner side surface of the first follower lever (161), and the second active lever (152) is mounted and arranged to correspond to the inner side surface of the second follower lever (162), a frame support arm (111) is mounted on a side of the support (112) away from the second frame (11), an active flip arm (15) and a follower flip arm (16) are located between the frame support arms (111), and when the active flip arm (15) rotates, it can drive the U-shaped beam (4) on the second frame (11) to flip and move onto the frame support arm (111), and a rear baffle plate (19) is also mounted on an end of the second frame (11) away from the waste material selection portion (5); The servo crane (2) comprises four vertically arranged crane columns (21), a connecting beam (28) is provided between two crane columns (21) in the length direction, a guide rail beam (22) is provided between two crane columns (21) in the width direction, a movable cross beam (23) is installed on the guide rail beam (22), a suction cup cross beam (26) that can be vertically lifted is installed on the movable cross beam (23), a plurality of electromagnetic suction cups (27) are installed at the bottom of the suction cup cross beam (26), and the electromagnetic suction cups (27) can attract and grab the U-shaped beam (4) when powered.

2. A U-beam stacking system according to claim 1, characterized in that: A positioning guide device (13) and a movable guide device (14) are installed on the second frame (11) of the conveying and turning part (1). The positioning guide device (13) and the movable guide device (14) are respectively arranged on both sides of the second frame (11) in a width direction. The positioning guide device (13) includes a positioning seat (130) fixed on the second frame (11). A first roller (131) is installed in the positioning seat (130). The movable guide device (14) includes a telescopic cylinder (140) and a guide rail (141). A movable seat (142) is installed on the guide rail (141). A second roller (143) is installed on the movable seat (142). The piston rod of the telescopic cylinder (140) is connected to the movable seat (142) via a connecting frame (144). The telescopic movement of the piston rod of the telescopic cylinder (140) can drive the second roller (143) to move closer to or away from the first roller (131).

3. A U-beam stacking system according to claim 1, characterized in that: A turning reducer (110) is mounted on the second frame (11), a first sprocket (113) is mounted on the output shaft of the turning reducer (110), a connecting sleeve (18) is mounted between the synchronous shafts (17) of the turning mechanisms, a second sprocket (114) is mounted on the synchronous shaft (17), a transmission chain (115) is mounted between the first sprocket (113) and the second sprocket (114), and when the turning reducer (110) is started, the active turning arms (15) of the turning mechanisms can be driven to rotate synchronously.

4. A U-beam stacking system according to claim 1, characterized in that: A matching keyway (153) is installed between the active sleeve (150) and the synchronous shaft (17), a flat key (154) is installed in the keyway (153), the active sleeve (150) can rotate synchronously with the synchronous shaft (17), a bearing (163) is installed between the follower sleeve (160) and the synchronous shaft (17), and the follower sleeve (160) can rotate freely relative to the synchronous shaft (17).

5. A U-beam stacking system according to claim 1, characterized in that: The unloading trolley (3) comprises a vehicle body (30), a movable wheel (31) is installed at the bottom of the vehicle body (30), and a plurality of stacking racks are arranged in the length direction of the vehicle body (30), each stacking rack comprises a rectangular tube (32) arranged on the vehicle body (30), and vertically arranged channel steels (33) are arranged on both sides of the rectangular tube (32).

6. A U-beam stacking system according to claim 1, characterized in that: A first rack (220) and a transverse guide rail (236) are installed in the length direction of the guide rail beam (22); a transverse motor (230) is installed on the movable crossbeam (23); a first gear (231) meshing with the first rack (220) is installed on the output shaft of the transverse motor (230); transverse sliders (237) matching with the transverse guide rail (236) are provided at both ends of the movable crossbeam (23) in the length direction; and the transverse motor (230) can drive the movable crossbeam (23) to move in the length direction of the guide rail beam (22) when it is started.

7. A U-beam stacking system according to claim 1, characterized in that: A lifting motor (24) is mounted on the movable crossbeam (23), a second gear (233) is mounted on the output shaft of the lifting motor (24), a second vertically arranged second rack (234) is mounted at the end of the suction cup crossbeam (26) in the length direction, the second gear (233) meshes with the second rack (234), a shield (232) is mounted at the end of the movable crossbeam (23) in the length direction, the second gear (233) and the second rack (234) are mounted in the shield (232), a guide column (25) is also mounted on the suction cup crossbeam (26), a guide sleeve (235) matched with the guide column (25) is provided on the movable crossbeam (23), and the lifting motor (24) can drive the suction cup crossbeam (26) to vertically lift relative to the movable crossbeam (23) when it is started.

8. The U-beam stacking system according to claim 1, characterized in that: A T-shaped rail (260) is provided in the length direction of the bottom of the suction cup crossbeam (26), and a plurality of probe rods (261) and sliding blocks (262) are installed on the T-shaped rail (260). A connecting plate (263) is provided on the electromagnetic suction cup (27), and connecting bolts (264) are installed between the two sides of each sliding block (262) and the connecting plate (263). A spring (265) is sleeved on the outer periphery of the connecting bolt (264) between the connecting plate (263) and the sliding block (262), and a plurality of gaskets (266) are installed on one end of the connecting bolt (264) that passes through the sliding block (262) upward, and the gasket (266) is located between the nut and the sliding block (262).

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