A method for stacking steel bar truss floor decking

Abstract

The invention relates to a method for stacking steel bar truss floor decks; the method comprises the following steps: S1. loading: the steel bar truss floor decks are transported to a first station by a conveying device along an X-axis direction; S2. lifting: the odd-numbered boards are lifted to a second station by a lifting device along a Y-axis direction; S3. pushing: the odd-numbered boards are pushed to a third station by a pushing device along a Z-axis direction, and after completion, the S1 operation is repeated; S4. flipping: the even-numbered boards are flipped to the previous odd-numbered boards by a flipping device; the height displacement generated after the flipping of the even-numbered boards is equal to twice the value of the turning radius of the flipping device; S5. descending: the board located at the third station descends along the Y-axis direction with the lifting device, and at this time, the position of the bottom mold frame of the top even-numbered boards is the new third station; the invention breaks through the limitation of the height of the conveying device on the stacking height, ensures that the conveying device is at the same height as the assembly line workbench, improves the stacking height and stacking efficiency, and reduces the equipment cost.

Description

Technical Field

[0001] The invention relates to the technical field of steel bar truss floor deck production, in particular to a steel bar truss floor deck stacking method. Background Art

[0002] The steel truss floor deck is an unsupported corrugated composite floor deck, which includes a base plate and a steel truss welded to the base plate. The steel truss mainly includes upper chord steel bars, lower chord steel bars and web bars, and the three are welded to form the above-mentioned steel truss floor deck.

[0003] After the steel truss floor decking is welded and formed, it needs to be stacked. Usually, the steel truss floor decking is stacked in a positive and negative manner. A steel truss floor decking stacking device is provided in the patent with the authorization announcement number CN214651152U. When the device is used, first, the steel truss floor decking to be stacked enters the supporting mechanism and the conveying mechanism along the upstream roller after the welding is completed from the upstream production line. The sprocket chain arranged at the output shaft end of the conveying motor drives the steel truss floor decking to move along the roller to the unloading position and then stops. The translation motor drives the translation long axis to rotate through the sprocket chain at the output shaft end of the motor, thereby driving the translation trolley on the vertical gantry to move, and pushing the steel truss floor decking to the unloading side of the support mechanism. On the lifting platform of the lifting mechanism, the translation trolley returns to the initial position on one side of the translation long axis; then, the subsequent steel truss floor deck moves to the unloading position and then stops, and the clamping cylinder of the flipping mechanism on the supporting mechanism at the corresponding position is started, and the clamping cylinder pushes the clamping blocks at both ends of the flipping rod to tighten the steel truss floor deck, and the flipping motor drives the flipping long axis to rotate, and then the flipping arm on the flipping long axis rotates to buckle the subsequent steel truss floor deck with the first steel truss floor deck; finally, during the stacking process, the lifting platform height of the lifting mechanism is adjusted by the driving motor, and stacking is performed in sequence according to the push-flip operation. When the stacking height is reached, the steel truss floor deck on the lifting mechanism is bundled and hoisted to the existing stacking.

[0004] The problem existing in the prior art is that the stacking height of the steel truss floor deck is limited by the height of the conveying device (equivalent to the "conveyor mechanism" in the referenced document), and its maximum height is equal to the height of the conveying device, generally 85cm-93cm. If the stacking height is to be increased, the height of the conveying device can only be increased, and the height of the workbench of the previous welding steel truss floor deck equipment also needs to be increased accordingly, which will greatly increase the cost of the assembly line and is extremely complicated. Summary of the invention

[0005] In order to solve the above technical problems, the present invention provides a method for stacking steel truss floor decks, which breaks through the limitation of the stacking height on the conveying device height, ensures that the conveying device is at the same height as the assembly line workbench, increases the stacking height, improves the stacking efficiency, and reduces the equipment cost.

[0006] In order to achieve the above-mentioned object, a steel bar truss floor deck stacking method adopted by the present invention comprises:

[0007] S1. Loading: The steel truss floor deck is transported to the first station by the conveying device along the X-axis direction. After the steel truss floor deck reaches the designated position, a signal is sent to determine whether it is an odd block or an even block. If it is an odd block, S2 operation is performed, and if it is an even block, S4 operation is performed;

[0008] S2. Lifting: The odd-numbered steel truss floor deck is lifted by the lifting device along the Y-axis direction to the second station;

[0009] S3. Pushing: The odd-numbered steel truss floor deck is pushed by the pushing device along the Z-axis direction to the third station. After completion, the pushing device returns to its original position, the lifting device returns to its original position, and then the S1 operation is repeated;

[0010] S4. Flipping: The even-numbered steel truss floor deck is flipped by the flipping device to the previous odd-numbered steel truss floor deck. The height displacement of the even-numbered steel truss floor deck after flipping is equal to twice the rotation radius of the flipping device.

[0011] S5. Descending: The steel truss floor deck at the third station is descended along the Y-axis direction with the lifting device. At this time, the position of the bottom formwork of the top even-numbered steel truss floor deck is the new third station, and the lifting device descends by the height of two steel trusses after being cross-stacked;

[0012] S6. While the lifting device is descending, the flipping device returns to its original position; and the S1 operation is repeated until the stacking height of the steel truss floor decking reaches the preset height.

[0013] This technical solution modifies the rotation center of the flipping device in the prior art from being at the same height as the steel truss floor deck to being higher than the steel truss floor deck, so that the flipping device is displaced in height from the initial position after flipping, thereby increasing the height of the even-numbered steel truss floor decks. At the same time, in order to coordinate with the increase in the position of the even-numbered steel truss floor decks after flipping, a lifting step S2 is added to increase the height of the odd-numbered steel truss floor decks.

[0014] By adopting the above technical scheme, the stacking height of the steel truss floor deck is no longer restricted by the height of the conveying device, and the stacking height is improved. The current stacking height can reach more than 120 cm. If a secondary lifting device is added, the stacking height can reach more than 140 cm. At the same time, the stacking efficiency is improved. The stacking time of each steel truss floor deck is about 10 seconds, and there is no need to raise the workbench of a production process on the production line to adapt to it, which realizes the standardization and versatility of the equipment and saves equipment costs.

[0015] Preferably, the turning device comprises a turning spindle, a turning frame, a clamp and a heightening frame;

[0016] The initial position of the material turning frame is at the same height as the first work station and is parallel to the width direction of the steel truss floor deck. The clamp is slidably connected to the material turning frame to grasp and place the steel truss floor deck;

[0017] The turning main axis is arranged parallel to the length direction of the steel bar truss floor deck, and the turning main axis is higher than the turning frame in the vertical direction;

[0018] One end of the material turning rack near the turning spindle is fixedly connected to the heightening rack, and the other end of the heightening rack is fixedly connected to the turning spindle to realize that the material turning rack rotates about 180° along with the turning spindle. There are multiple material turning racks and heightening racks, and the number is the same.

[0019] The turning spindle is arranged on the spindle support, and the turning spindle is rotatably connected with the spindle support through a bearing.

[0020] By adopting this technical solution, it is achieved that the stacking height can be increased only by increasing the turning radius of the turning device, wherein the height of the elevated frame in the vertical direction is the turning radius, and the actual increased stacking height is twice the length of the elevated frame. Therefore, this technical solution achieves a double increase in the stroke by adding an elevated frame, and the structure is ingenious, simple and low-cost. The technical solution in which the turning frame rotates about 180° with the turning spindle is simple and reliable in structure, and also achieves the beneficial effect of reducing costs.

[0021] Preferably, the clamp includes two jaws, which are respectively located near the two ends of the tipping frame. The two jaws slide relative to or toward each other along the tipping frame to grasp and release the steel truss floor deck to achieve centering clamping of the steel truss. The jaws are controlled by a pneumatic cylinder or an oil cylinder.

[0022] By adopting this technical solution, the tipping device can reliably clamp the steel truss floor decking, and a central clamping method is adopted. This design facilitates the control and adjustment of the position of the steel truss floor decking on the tipping rack, thereby ensuring that the even-numbered boards are staggered with the previous board when stacked, so as to ensure the stability of the stacking and also ensure the highest space utilization.

[0023] Preferably, the flipping device controls the rotation of the flipping main shaft through chain drive or synchronous belt drive, and proximity switch 1 and proximity switch 2 are provided in the flipping device. Proximity switch 1 limits the extreme position of flipping of the flipping device, and proximity switch 2 limits the extreme position of return of the flipping device after the work is completed.

[0024] By adopting this technical solution, automatic control of the turning device is achieved.

[0025] Preferably, the conveying device is at the same height as the workbench of the previous process, and the conveying device includes a conveying bracket and a plurality of conveying rollers cross-armed on the conveying bracket, the plurality of conveying rollers are driven by a transmission chain and a sprocket, the first workstation is located above the conveying rollers, and a proximity switch three is provided on the conveying bracket, and the proximity switch three limits the position of the steel truss floor deck in the X-axis direction of the first workstation.

[0026] By adopting this technical solution, the conveying device is ensured to be at the same height as the workbench of the previous process, achieving the versatility and standardization of the equipment.

[0027] Preferably, the initial position of the lifting device is at the same height as the first workstation. The lifting device includes multiple lifting brackets, which are controlled to rise and fall by oil cylinders or air cylinders to lift the steel truss floor deck to the second workstation, which is located above the first workstation.

[0028] By adopting this technical solution, the steel truss floor deck is lifted to match the height of the next flipped steel truss floor deck, thereby achieving the beneficial effect of increasing the stacking height.

[0029] Preferably, the lifting bracket includes a cross bar and two vertical bars, the vertical bars are fixedly connected at both ends of the cross bar, and the two vertical bars are respectively slidably connected to the conveying bracket. Guide grooves are fixedly provided on both inner sides in the width direction of the conveying bracket, and the two guide grooves are adapted to the two vertical bars. Bull's eye bearings are provided on both sides of each guide groove, and the bull's eye bearings are in rolling contact with the two side surfaces of the vertical bars close to the side surfaces of the guide grooves. Bearings are provided on both sides of the guide grooves, and the bearings are in rolling contact with the sides of the vertical bars away from the conveying bracket; the lifting bracket is connected to the telescopic rod of the oil cylinder or the air cylinder through a fisheye joint.

[0030] By adopting this technical solution, the guide groove ensures the safety and reliability of the lifting device. The setting of the bull's eye bearing and the bearing reduces the friction resistance of the lifting device during the rising process. The setting of the fisheye joint realizes the rotatable connection between the lifting bracket and the telescopic rod, avoiding resistance on the telescopic rod and increasing the service life of the lifting device.

[0031] Preferably, the pushing device includes a plurality of first pushing components; the first pushing components are fixed on the lifting device and are parallel to the width direction of the steel truss floor decking plate and rise and fall with the lifting device; a push plate 1 is provided on the first pushing component, and the push plate 1 is controlled to move along the Z axis by an oil cylinder or an air cylinder.

[0032] Preferably, the pushing device further comprises a plurality of second pushing components, the second pushing components are at the same height as the second workstation, a push plate 2 is arranged on the second pushing component, and the push plate 2 is controlled to move along the Z axis by an oil cylinder or a pneumatic cylinder.

[0033] In this technical solution, the pushing device horizontally pushes the steel truss floor decking plate to the third workstation, that is, the lifting device, wherein the first pushing component cannot push it into place in one step, so a second pushing component is installed at the same height position, so that the steel truss floor decking plate can be pushed to the third workstation in two steps, and the pushing action is stable, fast and reliable.

[0034] Preferably, the lifting device is located on one side of the conveying device, and the lifting device includes a plurality of vertical brackets, a plurality of horizontal brackets and a lifting transmission shaft. The plurality of vertical brackets are fixedly arranged in parallel and side by side on the outside of the conveying bracket. The lifting transmission shaft is rotatably connected to the plurality of horizontal brackets through bearings. The plurality of horizontal brackets are arranged in parallel. A plurality of gears are fixedly arranged on the lifting transmission shaft. The plurality of horizontal brackets move up and down along the vertical brackets with the lifting transmission shaft through a gear rack pair. The plurality of gears are respectively meshed with a plurality of racks. The plurality of racks are fixedly arranged on the side of the vertical bracket away from the conveying device. The lifting transmission shaft is connected to a motor and a reducer in transmission.

[0035] The upper surface of the horizontal support is the third station, the third station is equal to or lower than the height of the second station, and the height difference between the second station and the third station ranges from 0 to 8 cm.

[0036] By adopting this technical solution, a stable and reliable lifting action is achieved to support the descent of the steel truss floor decking, thereby achieving the required stacking height requirement; the third station is slightly lower than the second station because after the first push is completed, when the steel truss floor decking partially enters the third station, due to the height difference and its own weight, it will be slightly lower than the second push plate of the second pushing component, so as to facilitate the second pushing component to push it into place completely.

[0037] In summary, the present invention has the following beneficial technical effects:

[0038] 1. By changing the stacking method and setting up a turning device and a lifting device, the stacking height of the steel truss floor deck is no longer limited by the height of the conveying device, and the stacking height is increased. The current stacking height can reach more than 120cm. If a secondary lifting device is added, the stacking height can reach more than 140cm; at the same time, the stacking efficiency is improved, and the stacking time of each steel truss floor deck is about 10s; and there is no need to raise the workbench of a production process on the production line to adapt, which realizes the standardization and versatility of the equipment and saves equipment costs.

[0039] 2. The setting of the turning device realizes that the stacking height can be increased only by increasing the turning radius of the turning device, wherein the length of the elevated frame is the turning radius, and the actual increased stacking height is twice the length of the elevated frame. Therefore, the technical solution achieves a double increase in the stroke by adding an elevated frame, and the structure is ingenious, simple and low-cost. The technical solution in which the turning frame rotates about 180° with the turning spindle is simple and reliable in structure, and also achieves the beneficial effect of reducing costs.

[0040] 3. The setting of the guide groove ensures the safety and reliability of the lifting device. The setting of the bull's eye bearing and the bearing reduces the friction resistance of the lifting device during the rising process. The setting of the fisheye joint realizes the rotatable connection between the lifting bracket and the telescopic rod, avoiding the damage of the cylinder or oil cylinder due to the resistance of the telescopic rod during extension and retraction, thereby improving the service life of the lifting device. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Figure 1 This is a schematic diagram of the stacking of odd-numbered steel truss floor decking plates;

[0042] Figure 2 This is a schematic diagram of the stacking of even-numbered steel truss floor decking plates;

[0043] Figure 3 This is a schematic diagram of the steel truss floor deck stacking equipment;

[0044] Figure 4 is a schematic diagram of a lifting device;

[0045] Figure 5 It is a schematic diagram of the guide groove.

[0046] Description of reference numerals: 1-first workstation; 2-second workstation; 3-third workstation; 4-reinforced truss floor deck;

[0047] 5-conveying device; 51-conveying bracket; 511-guide groove; 512-bull's eye bearing; 513-bearing;

[0048] 52- conveying roller;

[0049] 6-lifting device; 61-lifting bracket; 611-crossbar; 612-vertical bar; 613-fisheye joint;

[0050] 7-sliding device; 71-first sliding member; 711-pushing plate 1;

[0051] 72- second push member; 721- push plate 2;

[0052] 8-turning device; 81-turning spindle; 82-turning rack;

[0053] 83-clamp; 831-claw;

[0054] 84-elevated frame; 85-spindle support;

[0055] 9-lifting device; 91-vertical support; 92-horizontal support; 93-lifting transmission shaft. DETAILED DESCRIPTION

[0056] The present invention is further described in detail below in conjunction with the accompanying drawings.

[0057] This embodiment discloses a method for stacking steel truss floor decks, referring to Figure 1-2 , including the following steps:

[0058] S1. Loading: The steel truss floor deck 4 is conveyed by the conveying device 5 along the X-axis direction to the first station 1. After the steel truss floor deck 4 reaches the designated position, a signal is sent to determine whether it is an odd block or an even block. If it is an odd block, S2 operation is performed, and if it is an even block, S4 operation is performed;

[0059] S2 lifting: The odd-numbered steel truss floor deck 4 is lifted by the lifting device 6 along the Y-axis direction to the second station 2;

[0060] S3. Push: The odd-numbered steel truss floor deck 4 is pushed by the push device 7 along the Z-axis direction to the third station 3. After completion, the push device 7 returns to its original position, the lifting device 6 returns to its original position, and then repeats the S1 operation;

[0061] S4. Flipping: The even-numbered steel truss floor deck 4 is flipped by the flipping device 8 onto the previous odd-numbered steel truss floor deck 4; the height displacement of the even-numbered steel truss floor deck 4 after flipping is equal to twice the rotation radius of the flipping device 8.

[0062] S5. Downward: The steel truss floor decking plate 4 at the third station 3 is lowered along the Y-axis direction with the lifting device 9. At this time, the bottom formwork of the top even-numbered steel truss floor decking plate 4 is located at the new third station 3;

[0063] S6. While the lifting device 9 is descending, the flipping device 8 returns to its original position; and the S1 operation is repeated until the stacking height of the steel truss floor decking slab 4 reaches a preset height.

[0064] Reference Figure 2The turning device 8 includes a turning spindle 81, a turning frame 82, a clamp 83 and an elevated frame 84; the initial position of the turning frame 82 is at the same height as the first workstation 1 and is parallel to the width direction of the steel truss floor decking plate 4, and the clamp 83 is slidably connected to the turning frame 82 to grasp and release the steel truss floor decking plate 4; the turning spindle 81 is arranged parallel to the length direction of the steel truss floor decking plate 4, and the turning spindle 81 is higher than the turning frame 82 in the vertical direction; one end of the turning frame 82 near the turning spindle 81 is fixedly connected to the elevated frame 84, and the other end of the elevated frame 84 is fixedly connected to the turning spindle 81, and there are four turning frames 82 and four elevated frames 84. The turning spindle 81 is arranged on the spindle bracket 85, and the turning spindle 81 is rotatably connected to the spindle bracket 85 through a bearing.

[0065] Reference Figure 2-3 The clamp 83 includes two clamping jaws 831, which are respectively located at the two ends of the material turning frame 82. The two clamping jaws 831 slide relative to or toward each other along the material turning frame 82 to grasp and release the steel truss floor deck 4. The clamping jaws 831 are controlled by a cylinder. The turning device 8 controls the turning spindle 81 to rotate through a motor and a chain drive. A proximity switch 1 and a proximity switch 2 are arranged in the turning device 8. The proximity switch 1 limits the extreme position of the turning device 8, and the proximity switch 2 limits the extreme position of the turning device 8 to return after the work is completed.

[0066] Reference Figure 1 and Figure 3 The conveying device 5 is at the same height as the workbench of the previous process. The conveying device 5 includes a conveying bracket 51 and 24 conveying rollers 52 cross-armed on the conveying bracket 51. The 24 conveying rollers 52 are driven by a transmission chain and a sprocket. The first station 1 is located above the conveying rollers 52. The conveying bracket 51 is provided with a proximity switch three. The proximity switch three limits the position of the steel truss floor deck 4 in the X-axis direction of the first station 1.

[0067] Reference Figure 1 and Figure 3 The initial position of the lifting device 6 is at the same height as the first workstation 1. The lifting device 6 includes eight lifting brackets 61. The lifting brackets 61 are lifted and lowered by cylinders to lift the steel truss floor deck 4 to the second workstation 2. The second workstation 2 is located above the first workstation 1.

[0068] Reference Figure 4-5The lifting bracket 61 includes a cross bar 611 and two vertical bars 612. The vertical bars 612 are fixedly connected at both ends of the cross bar 611. The two vertical bars 612 are respectively slidably connected to the conveying bracket 51. Guide grooves 511 are fixedly provided on both inner sides of the conveying bracket 51 in the width direction. The two guide grooves 511 are adapted to the two vertical bars 612. Two bull's eye bearings 512 are provided on both sides of each guide groove 511. The bull's eye bearings 512 are in rolling contact with the two side surfaces of the vertical bars 612 close to the side surfaces of the guide groove 511. Two bearings 513 are provided on both sides of the guide groove 511. The bearings 513 are in rolling contact with the side surfaces of the vertical bars 612 away from the conveying bracket 51; the lifting bracket 61 is connected to the telescopic rod of the oil cylinder or the air cylinder through a fisheye joint 613.

[0069] Reference Figure 1 and Figure 3 The pushing device 7 includes eight first pushing components 71; the first pushing components 71 are fixed on the lifting device 6 and are parallel to the width direction of the steel truss floor deck 4. A pushing plate 711 is provided on the first pushing component 71, and the pushing plate 711 is controlled by a cylinder to move along the Z axis.

[0070] Reference Figure 1 and Figure 3 The pushing device 7 also includes eight second pushing components 72. The second pushing components 72 are at the same height as the second workstation 2. A second pushing plate 721 is provided on the second pushing component 72. The push plate 721 is controlled by a cylinder to move along the Z axis.

[0071] Reference Figure 1 , Figure 2 and Figure 3 The lifting device 9 is located on one side of the conveying device 5. The lifting device 9 includes six vertical brackets 91, fourteen horizontal brackets 92 and a lifting transmission shaft 93. The six vertical brackets 91 are fixed in parallel and side by side on the outside of the conveying bracket 51. The lifting transmission shaft 93 is rotatably connected to the fourteen horizontal brackets 92. The fourteen horizontal brackets 92 are arranged in parallel. Four gears are fixed on the lifting transmission shaft 93. The four gears are respectively meshed with four racks. The four racks are respectively fixed on the side of the vertical bracket 91 away from the conveying device 5. The lifting transmission shaft 93 is connected with a motor and a reducer; the upper surface of the horizontal bracket 92 is the third station 3, and the third station 3 is slightly lower than the height of the second station 2. The height difference between the second station 2 and the third station 3 is in the range of 0-8cm, so as to facilitate the pushing of the push plate 2 of the second pushing component.

[0072] The above are only preferred embodiments of the present invention and are not intended to limit the present invention in other forms. Any technician familiar with the profession may use the technical contents disclosed above to change or modify them into equivalent embodiments with equivalent changes and apply them to other fields. However, any simple modification or equivalent change made to the above embodiments based on the technical essence of the present invention without departing from the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A method for stacking steel truss floor decks, characterized in that: include: S1. Loading: The steel truss floor deck (4) is transported by the conveying device (5) along the X-axis direction to the first station (1). After the steel truss floor deck (4) reaches the designated position, a signal is sent to determine whether it is an odd block or an even block. If it is an odd block, S2 operation is performed, and if it is an even block, S4 operation is performed; S2. Lifting: The odd-numbered steel truss floor deck (4) is lifted by the lifting device (6) along the Y-axis direction to the second station (2); S3. Push: The odd-numbered steel truss floor deck (4) is pushed by the push device (7) along the Z-axis direction to the third station (3). After completion, the push device (7) returns to its original position, the lifting device (6) returns to its original position, and then repeats the S1 operation; S4 flip: the even-numbered steel truss floor deck (4) is flipped by the flipping device (8) to the previous odd-numbered steel truss floor deck (4); the height displacement of the even-numbered steel truss floor deck (4) after flipping is equal to twice the turning radius of the flipping device (8); S5. Downward: The steel truss floor decking plate (4) located at the third station (3) is lowered along the Y-axis direction with the lifting device (9). At this time, the bottom formwork of the top even-numbered steel truss floor decking plate (4) is located at the new third station (3); S6. While the lifting device (9) is descending, the flipping device (8) returns to its original position; and the S1 operation is repeated until the stacking height of the steel truss floor deck (4) reaches a preset height.

2. A method for stacking steel truss floor decks according to claim 1, characterized in that: The turning device (8) comprises a turning spindle (81), a turning frame (82), a clamp (83), a heightening frame (84) and a spindle support (85); The initial position of the material turning frame (82) is at the same height as the first work station (1) and is parallel to the width direction of the steel truss floor deck (4); the clamp (83) is slidably connected to the material turning frame (82) to grasp and release the steel truss floor deck (4); The turning main axis (81) is arranged parallel to the length direction of the steel bar truss floor deck (4), and the turning main axis (81) is higher than the turning frame (82) in the vertical direction; One end of the material turning frame (82) close to the turning main shaft (81) is fixedly connected to the elevated frame (84), and the other end of the elevated frame (84) is fixedly connected to the turning main shaft (81). There are multiple material turning frames (82) and elevated frames (84), and the number of the two frames is the same. The flip spindle (81) is arranged on the spindle support (85), and the flip spindle (81) is rotatably connected to the spindle support (85) via a bearing.

3. A method for stacking steel truss floor decks according to claim 2, characterized in that: The clamp (83) comprises two clamping jaws (831), the two clamping jaws (831) are respectively located near the two ends of the material turning frame (82), and the two clamping jaws (831) slide relative to or towards each other along the material turning frame (82) to grasp and release the steel bar truss floor deck (4), and the clamping jaws (831) are controlled by a pneumatic cylinder or an oil cylinder.

4. A method for stacking steel truss floor decks according to claim 2, characterized in that: The flipping device (8) controls the rotation of the flipping main shaft (81) through chain drive or synchronous belt drive. A proximity switch 1 and a proximity switch 2 are arranged in the flipping device (8). The proximity switch 1 defines the extreme position of the flipping of the flipping device (8), and the proximity switch 2 defines the extreme position to which the flipping device (8) returns after the work is completed.

5. A method for stacking steel truss floor decks according to claim 2, characterized in that: The conveying device (5) is at the same height as the workbench of the previous process, and comprises a conveying bracket (51) and a plurality of conveying rollers (52) cross-armed on the conveying bracket (51), wherein the plurality of conveying rollers (52) are driven by a transmission chain and a sprocket, and the spindle bracket (85) is fixed on a side edge of the conveying bracket (51); the first station (1) is located above the conveying rollers (52), and a proximity switch three is provided on the conveying bracket (51), wherein the proximity switch three limits the position of the steel truss floor deck (4) in the X-axis direction of the first station (1).

6. A method for stacking steel truss floor decks according to claim 1, characterized in that: The initial position of the lifting device (6) is at the same height as the first workstation (1). The lifting device (6) comprises a plurality of lifting brackets (61). The lifting brackets (61) are controlled to rise and fall by means of an oil cylinder or an air cylinder so as to lift the steel truss floor deck (4) to the second workstation (2). The second workstation (2) is located above the first workstation (1).

7. A method for stacking steel truss floor decks according to claim 6, characterized in that: The lifting bracket (61) comprises a cross bar (611) and two vertical bars (612), wherein the vertical bars (612) are fixedly connected to both ends of the cross bar (611), and the two vertical bars (612) are respectively slidably connected to the conveying bracket (51), and the two inner sides of the conveying bracket (51) in the width direction are fixedly provided with guide grooves (511), and the two guide grooves (511) are adapted to the two vertical bars (612), and bull's eye bearings (512) are provided on both sides of each guide groove (511), and the bull's eye bearings (512) are in rolling contact with two side surfaces of the vertical bars (612) close to the side surfaces of the guide groove (511), and bearings (513) are provided on both sides of the guide groove (511), and the bearings (513) are in rolling contact with the side surfaces of the vertical bars (612) away from the conveying bracket (51); the lifting bracket (61) is connected to the telescopic rod of the oil cylinder or the air cylinder through a fisheye joint (613).

8. A method for stacking steel truss floor decks according to claim 1, characterized in that: The pushing device (7) comprises a plurality of first pushing components (71); the first pushing components (71) are fixedly mounted on the lifting device (6) and are parallel to the width direction of the steel truss floor deck (4); a push plate 1 (711) is arranged on the first pushing component (71); the push plate 1 (711) is controlled to move along the Z axis by an oil cylinder or an air cylinder.

9. A method for stacking steel truss floor decks according to claim 8, characterized in that: The pushing device (7) further comprises a plurality of second pushing components (72), wherein the second pushing components (72) are at the same height as the second workstation (2), and a second pushing plate (721) is provided on the second pushing component (72), and the second pushing plate (721) is controlled to move along the Z axis by an oil cylinder or an air cylinder.

10. A method for stacking steel truss floor decks according to claim 1, characterized in that: The lifting device (9) is located on one side of the conveying device (5), and the lifting device (9) includes a plurality of vertical brackets (91), a plurality of horizontal brackets (92) and a lifting transmission shaft (93). The plurality of vertical brackets (91) are fixedly arranged in parallel and side by side on the outside of the conveying bracket (51). The lifting transmission shaft (93) is rotatably connected to the plurality of horizontal brackets (92) via bearings. The plurality of horizontal brackets (92) are arranged in parallel. A plurality of gears are fixedly arranged on the lifting transmission shaft (93), each of the gears is respectively meshed with a rack. The plurality of racks are fixedly arranged on the side of the vertical bracket (91) away from the conveying device (5). The lifting transmission shaft (93) is transmission-connected to a motor and a reducer. The upper surface of the horizontal support (92) is a third workstation (3), and the third workstation (3) is equal to or lower than the height of the second workstation (2). The height difference between the second workstation (2) and the third workstation (3) is in the range of 0-8 cm.

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