CN115339861A

CN115339861A - Stacking method for steel bar truss floor support plates

Info

Publication number: CN115339861A
Application number: CN202211095201.5A
Authority: CN
Inventors: 程才; 孙照帅; 马莉
Original assignee: Shandong Zhizhen Machinery Technology Co ltd
Current assignee: Shandong Zhizhen Machinery Technology Co ltd
Priority date: 2022-09-08
Filing date: 2022-09-08
Publication date: 2022-11-15

Abstract

The invention relates to a stacking method of steel bar truss floor bearing plates; the method comprises the following steps: s1, feeding: the steel bar truss floor support plate is conveyed to a first station along the X-axis direction by a conveying device; s2, lifting: the odd plates are lifted to a second station along the Y-axis direction by a lifting device; s3, pushing: the odd boards are pushed to a third station along the Z-axis direction by a pushing device, and after the pushing is finished, the operation of S1 is repeated; s4, overturning: the even number plate is turned to the previous odd number plate by the turning device; the height displacement generated after the even number of plates are turned is equal to two times of the turning radius value of the turning device; s5, descending: the plate positioned at the third station descends along the Y-axis direction along with the lifting device, and at the moment, the position of the bottom die frame of the uppermost even number plate is a new third station; the stacking device breaks through the limitation of the height of the conveying device on the stacking height, improves the stacking height and the stacking efficiency on the premise of ensuring the height of the conveying device and the height of a production line workbench to be equal, and reduces the equipment cost.

Description

Stacking method for steel bar truss floor support plates

Technical Field

The invention relates to the technical field of production of steel bar truss floor bearing plates, in particular to a stacking method of steel bar truss floor bearing plates.

Background

Steel bar truss building carrier plate belongs to a no support die mould combination building carrier plate, and it includes the bottom plate and welds the steel bar truss on the bottom plate, and steel bar truss mainly includes last chord steel bar, last chord steel bar and web member reinforcing bar again, and the above-mentioned steel bar truss building carrier plate is formed through the welding to the three.

When the device is used, firstly, the steel bar truss floor bearing plate to be stacked enters a supporting mechanism and a conveying mechanism along an upstream roller after being welded from an upstream production line, the steel bar truss floor bearing plate is driven by a chain wheel chain arranged at the output shaft end of a conveying motor to move to a discharging position along a roller and then stop, a translation motor drives a translation long shaft to rotate by the chain wheel chain at the output shaft end of the translation motor, and then drives a translation trolley on a vertical door frame to move, the steel bar truss floor bearing plate is pushed onto a lifting platform of a lifting mechanism at the discharging side of the supporting mechanism, and the translation trolley returns to the initial position of one side of the translation long shaft; then, the subsequent steel bar truss floor bearing plate is moved to the unloading position and then stopped, a clamping cylinder of a turnover mechanism on the supporting mechanism at the corresponding position is started, the clamping cylinder pushes clamping blocks at two ends of a turnover rod to clamp the steel bar truss floor bearing plate, a turnover motor drives a turnover long shaft to rotate, a turnover arm on the turnover long shaft rotates, and the subsequent steel bar truss floor bearing plate is buckled with the first steel bar truss floor bearing plate; and finally, adjusting the height of a lifting platform of the lifting mechanism through a driving motor in the stacking process, sequentially stacking according to horizontal pushing-overturning operations, and tying and lifting the steel bar truss floor support plate on the lifting mechanism to be stacked after the stacking height is reached.

The problems in the prior art are that: the stacking height of the steel bar truss floor support plate is limited by the height of a conveying device (which is equal to the height of a conveying mechanism in a cited document), the highest height of the steel bar truss floor support plate is equal to the height of the conveying device, generally 85cm-93cm, if the stacking height needs to be increased, the height of a workbench of the equipment for welding the steel bar truss floor support plate at the previous time needs to be correspondingly increased, and therefore the assembly line cost is greatly increased, and the assembly line cost is extremely complicated.

Disclosure of Invention

In order to solve the technical problems, the invention provides the stacking method of the steel bar truss floor bearing plates, which breaks through the limitation of the height of the conveying device on the stacking height, improves the stacking efficiency and reduces the equipment cost on the premise of ensuring that the conveying device is as high as a production line workbench.

In order to achieve the purpose, the method for stacking the steel bar truss floor bearing plates comprises the following steps:

s1, feeding: the steel bar truss floor bearing plate is conveyed to a first station along the X-axis direction by a conveying device, a signal is sent after the steel bar truss floor bearing plate reaches a designated position, whether the steel bar truss floor bearing plate is an odd number block or an even number block is judged, S2 operation is carried out if the steel bar truss floor bearing plate is the odd number block, and S4 operation is carried out if the steel bar truss floor bearing plate is the even number block;

s2, lifting: the odd steel bar truss floor bearing plates are lifted to a second station along the Y-axis direction by a lifting device;

s3, pushing: pushing the odd steel bar truss floor bearing plates to a third station along the Z-axis direction by a pushing device, returning the pushing device to the original position after the pushing is finished, returning the lifting device to the original position, and repeating the S1 operation;

s4, overturning: on even number steel bar truss building carrier plate was turned over to previous odd number steel bar truss building carrier plate by turning device, the high displacement that produces after even number steel bar truss building carrier plate overturns equals twice turning radius value of turning device.

S5, descending: the steel bar truss floor support plate positioned at the third station descends along the Y-axis direction along with the lifting device, at the moment, the position of the bottom die holder of the uppermost even number of steel bar truss floor support plates is a new third station, and the descending distance of the lifting device is the height of two steel bar trusses after being crossly stacked;

s6, when the lifting device descends, the turnover device returns to the original position; and repeating the S1 operation until the stacking height of the steel bar truss floor bearing plate reaches the preset height.

This technical scheme is revised as being higher than steel bar truss building carrier plate with high with turning device 'S among the prior art centre of rotation and steel bar truss building carrier plate for the displacement in height is produced with initial position after the turning device upset, with this to improve the height of the steel bar truss building carrier plate of even number piece, simultaneously, for the increase of cooperation even number piece steel bar truss building carrier plate upset back position, S2' S the step of lifting has been increased, with the height that promotes odd number piece steel bar truss building carrier plate.

Through adopting above-mentioned technical scheme, the pile up neatly height that has realized steel bar truss building carrier plate no longer receives the restriction of conveyor height, the pile up neatly height has been promoted, present pile up neatly height can reach more than 120cm, if install a secondary again and lift the device, the pile up neatly height can reach more than 140cm, pile up neatly efficiency has been improved simultaneously, the pile up neatly time of every steel bar truss building carrier plate is about 10s, and the workstation that does not need to heighten one production processes on the production line adapts to, the standardization and the commonality of equipment have been realized, equipment cost has been saved.

Preferably, the overturning device comprises an overturning main shaft, a material overturning frame, a clamp and a heightening frame;

the initial position of the material turning frame is as high as the first station and is parallel to the width direction of the steel bar truss floor bearing plate, and the clamp is connected with the material turning frame in a sliding mode so as to grab and place the steel bar truss floor bearing plate;

the overturning main shaft is arranged in parallel to the length direction of the steel bar truss floor bearing plate, and is higher than the material overturning frame in the vertical direction;

one end of the material turning frame, close to the turning main shaft, is fixedly connected with the heightening frame, the other end of the heightening frame is fixedly connected with the turning main shaft so as to realize that the material turning frame rotates about 180 degrees along with the turning main shaft, and the material turning frame and the heightening frame are multiple and same in number;

the overturning main shaft is arranged on the main shaft support and is rotatably connected with the main shaft support through a bearing.

By adopting the technical scheme, the stacking height can be increased only by improving the turning radius of the turning device, the height of the heightening frame in the vertical direction is the turning radius, the actual stacking height is 2 times of the length of the heightening frame, so that the double-stroke improvement is realized by adding one heightening frame, the structure is ingenious and simple, the cost is low, the technical scheme that the material turning frame rotates about 180 degrees along with the turning main shaft is simple and reliable in structure, and the beneficial effect of reducing the cost is also realized.

Preferably, the fixture comprises two clamping jaws, the two clamping jaws are respectively positioned at the two ends close to the material turning frame, the two clamping jaws slide relatively or oppositely along the material turning frame so as to grab and place the steel bar truss floor bearing plate to realize centering and clamping of the steel bar truss, and the clamping jaws are controlled by an air cylinder or an oil cylinder.

Through adopting this technical scheme, realized that turning device reliably presss from both sides tightly to steel bar truss building carrier plate, adopted the centering simultaneously and pressed from both sides tight mode, the design is convenient for control like this and adjusts the position of steel bar truss building carrier plate on the stirring frame, and then guarantees that even number piece of board and preceding piece of board are crisscross when stacking and place to guarantee the stability of pile up neatly, also guaranteed the highest space utilization simultaneously.

Preferably, the turnover device controls the rotation of the turnover spindle through chain transmission or synchronous belt transmission, a proximity switch I and a proximity switch II are arranged in the turnover device, the proximity switch I limits the turnover limit position of the turnover device, and the proximity switch II limits the return limit position of the turnover device after the turnover device is finished.

By adopting the technical scheme, the automatic control of the turnover device is realized.

Preferably, the conveying device is as high as a workbench of the previous process, the conveying device comprises a conveying support and a plurality of conveying rollers of a cross arm on the conveying support, the plurality of conveying rollers are driven by a driving chain and a chain wheel, the first station is positioned above the conveying rollers, a third proximity switch is arranged on the conveying support, and the third proximity switch limits the position of the steel bar truss floor bearing plate in the X-axis direction of the first station.

By adopting the technical scheme, the same height of the conveying device and the workbench of the previous process is ensured, and the universality and standardization of equipment are realized.

Preferably, the initial position of lifting device is the same height as first station, and the lifting device includes a plurality of supports of lifting, lifts the support and passes through hydro-cylinder or cylinder control lift to lift steel bar truss building carrier plate to second station, second station are located first station top.

Through adopting this technical scheme, realized lifting to steel bar truss building carrier plate to the height of steel bar truss building carrier plate of a upset reaches the beneficial effect that improves the pile up neatly height under the cooperation.

Preferably, the lifting support comprises a cross rod and two vertical rods, the vertical rods are fixedly connected to two ends of the cross rod, the two vertical rods are respectively in sliding connection with the conveying support, guide grooves are fixedly formed in two inner sides of the conveying support in the width direction, the two guide grooves are matched with the two vertical rods, a bull-eye bearing is arranged on each of two side faces of each guide groove, the bull-eye bearings are in rolling contact with two side faces, close to the side faces of the guide grooves, of the vertical rods, bearings are arranged on the two side faces of the guide grooves, and the bearings are in rolling contact with the side faces, far away from the conveying support, of the vertical rods; the lifting support is connected with the telescopic rod of the oil cylinder or the air cylinder through a fisheye joint.

Through adopting this technical scheme, the fail safe nature of lifting device has been guaranteed to the guide way, and the frictional resistance that lifting device received at the in-process that rises has been reduced in the setting of bull's eye bearing and bearing, and what the fisheye connected sets up has realized lifting support and telescopic link rotatable being connected, has avoided the telescopic link to receive the resistance, has improved lifting device's life.

Preferably, the pusher shoe comprises a plurality of first pusher shoe members; the first pushing part is fixedly arranged on the lifting device and is parallel to the width direction of the steel bar truss floor bearing plate, and the first pushing part goes up and down along with the lifting device, and a first pushing plate is arranged on the first pushing part and is controlled to move along the Z axis through an oil cylinder or an air cylinder.

Preferably, the pushing device further comprises a plurality of second pushing parts, the second pushing parts are as high as the second station, a second pushing plate is arranged on the second pushing parts, and the second pushing plate is controlled to move along the Z axis through an oil cylinder or an air cylinder.

In the technical scheme, the pushing device horizontally pushes the steel bar truss floor bearing plate to the third station, namely the lifting device, wherein the first pushing part cannot push the steel bar truss floor bearing plate to the position at one step, so that the second pushing part is additionally arranged at the same height position, the steel bar truss floor bearing plate is pushed to the third station through two-step pushing, and the pushing action is stable, quick and reliable.

Preferably, the lifting device is positioned on one side of the conveying device and comprises a plurality of vertical supports, a plurality of horizontal supports and a lifting transmission shaft, the vertical supports are parallelly and fixedly arranged on the outer side of the conveying support side by side, the lifting transmission shaft is rotatably connected with the horizontal supports through bearings and is arranged in parallel, a plurality of gears are fixedly arranged on the lifting transmission shaft, the horizontal supports move up and down along the vertical supports along with the lifting transmission shaft through gear-rack pair transmission, the gears are respectively meshed with a plurality of racks, the racks are fixedly arranged on the side faces, far away from the conveying device, of the vertical supports, and the lifting transmission shaft is in transmission connection with a motor and a speed reducer;

the upper surface of the horizontal support is a third station, the height of the third station is equal to or lower than that of the second station, and the height difference range between the second station and the third station is 0-8cm.

By adopting the technical scheme, stable and reliable lifting action is realized to support the steel bar truss floor bearing plate to descend, so that the requirement of required stacking height is met; the third station is slightly lower than the second station so that after the first pushing is finished, when part of the steel bar truss floor bearing plate enters the third station, the third station is slightly lower than a second pushing plate of the second pushing part under the action of the height difference and the dead weight, and the second pushing part can push the second pushing part to be completely in place.

In summary, the invention has the following beneficial technical effects:

1. by changing a stacking method and arranging a turning device and a lifting device, the stacking height of the steel bar truss floor bearing plate is not limited by the height of a conveying device any more, the stacking height is increased and can reach more than 120cm at present, and if a secondary lifting device is additionally arranged, the stacking height can reach more than 140 cm; meanwhile, the stacking efficiency is improved, and the stacking time of each steel bar truss floor bearing plate is about 10 s; and the workbench of one production procedure on the production line does not need to be heightened to adapt, so that the standardization and the universality of equipment are realized, and the equipment cost is saved.

2. The turning device is arranged, so that the stacking height can be increased only by increasing the turning radius of the turning device, the length of the heightened frame is the turning radius, the actual stacking height is 2 times of the length of the heightened frame, the stroke is increased by increasing one heightened frame, the structure is ingenious, simple and low in cost, the technical scheme that the material turning frame rotates for about 180 degrees along with the turning main shaft is simple and reliable in structure, and the beneficial effect of reducing the cost is also achieved.

3. The safe reliability of lifting the device has been guaranteed in the setting of guide way, and the friction resistance that lifting device received at the in-process that rises has been reduced in the setting of bull's eye bearing and bearing, and what the fisheye connected has realized lifting the rotatable being connected of support and telescopic link, has avoided the telescopic link to receive the resistance and damage cylinder or hydro-cylinder when flexible, has improved the life of lifting the device.

Drawings

FIG. 1 is a schematic diagram illustrating stacking of odd-numbered steel bar truss floor decks;

FIG. 2 is a schematic diagram showing stacking of an even number of steel bar truss floor decks;

FIG. 3 is a schematic diagram of a steel bar truss floor deck stacking device;

FIG. 4 is a schematic view of a lift apparatus;

fig. 5 is a schematic view of the guide groove.

Description of reference numerals: 1-a first station; 2-a second station; 3-a third station; 4-steel bar truss floor support plate;

5-a conveying device; 51-a delivery stent; 511-guide groove; 512-bull's eye bearing; 513-bearings;

52-conveying rollers;

6-lifting device; 61-lifting the support; 611-a cross bar; 612-a vertical bar; 613-fisheye joint;

7-a pushing device; 71-a first pushing member; 711-push plate one;

72-a second pushing member; 721-push plate two;

8-a turning device; 81-overturning the main shaft; 82-material turning frame;

83-a clamp; 831-clamping jaw;

84-heightening; 85-main shaft support;

9-a lifting device; 91-vertical stand; 92-a horizontal support; 93-lifting transmission shaft.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

The embodiment discloses a steel bar truss floor support plate stacking method, which comprises the following steps of:

s1, feeding: the steel bar truss floor bearing plate 4 is conveyed to the first station 1 along the X-axis direction by the conveying device 5, a signal is sent after the steel bar truss floor bearing plate 4 reaches a specified position, whether the steel bar truss floor bearing plate is an odd number block or an even number block is judged, if the steel bar truss floor bearing plate is the odd number block, S2 operation is carried out, and if the steel bar truss floor bearing plate is the even number block, S4 operation is carried out;

s2, lifting: the odd steel bar truss floor bearing plates 4 are lifted to the second station 2 along the Y-axis direction by the lifting device 6;

s3, pushing: pushing the odd number of steel bar truss floor bearing plates 4 to the third station 3 along the Z-axis direction by the pushing device 7, returning the pushing device 7 to the original position after the pushing is completed, returning the lifting device 6 to the original position, and repeating the S1 operation;

s4, turning: the even number of steel bar truss floor bearing plates 4 are turned over to the previous odd number of steel bar truss floor bearing plates 4 by the turning device 8; the height displacement that produces after the upset of even number piece steel bar truss floor carrier plate 4 equals twice turning radius value of turning device 8.

S5, descending: the steel bar truss floor bearing plates 4 positioned at the third station 3 descend along the Y-axis direction along with the lifting device 9, and at the moment, the positions of bottom die holders of the uppermost even number steel bar truss floor bearing plates 4 are the new third station 3;

s6, when the lifting device 9 descends, the turnover device 8 returns to the original position; and repeating the S1 operation until the stacking height of the steel bar truss floor bearing plate 4 reaches the preset height.

Referring to fig. 2, the turning device 8 includes a turning spindle 81, a turning frame 82, a jig 83, and an elevating frame 84; the initial position of the material turning frame 82 is as high as the first station 1 and is parallel to the width direction of the steel bar truss floor bearing plate 4, and the clamp 83 is connected with the material turning frame 82 in a sliding mode to grab and place the steel bar truss floor bearing plate 4; the overturning main shaft 81 is arranged in parallel to the length direction of the steel bar truss floor bearing plate 4, and the overturning main shaft 81 is higher than the material overturning frame 82 in the vertical direction; one end of the material turning frame 82 close to the turning main shaft 81 is fixedly connected with the heightening frame 84, the other end of the heightening frame 84 is fixedly connected with the turning main shaft 81, the number of the material turning frame 82 and the number of the heightening frame 84 are four, the turning main shaft 81 is arranged on the main shaft support 85, and the turning main shaft 81 is rotatably connected with the main shaft support 85 through a bearing.

Referring to fig. 2-3, the clamp 83 includes two clamping jaws 831, the two clamping jaws 831 are respectively located at two ends of the material turning frame 82, the two clamping jaws 831 slide relatively or in opposite directions along the material turning frame 82 to grasp and place the steel bar truss floor support plate 4, and the clamping jaws 831 are controlled by cylinders. The turnover device 8 controls the rotation of the turnover spindle 81 through a motor and chain transmission, a first proximity switch and a second proximity switch are arranged in the turnover device 8, the first proximity switch limits the turnover limit position of the turnover device 8, and the second proximity switch limits the return limit position of the turnover device 8 after the work is finished.

Referring to fig. 1 and 3, the conveying device 5 is at the same height as the workbench of the previous process, the conveying device 5 comprises a conveying support 51 and 24 conveying rollers 52 crossarm on the conveying support 51, twenty-four conveying rollers 52 are driven by a transmission chain and a chain wheel, the first station 1 is located above the conveying rollers 52, the conveying support 51 is provided with a proximity switch III, and the proximity switch III limits the position of the steel bar truss floor support plate 4 in the first station 1X axial direction.

Referring to fig. 1 and 3, the initial position of the lifting device 6 is the same height as the first station 1, the lifting device 6 comprises eight lifting supports 61, the lifting supports 61 pass through, the cylinder controls the lifting, so as to lift the steel bar truss floor support plate 4 to the second station 2, and the second station 2 is located above the first station 1.

Referring to fig. 4-5, the lifting support 61 includes a cross bar 611 and two vertical bars 612, the vertical bars 612 are fixedly connected to two ends of the cross bar 611, the two vertical bars 612 are respectively connected to the conveying support 51 in a sliding manner, guide grooves 511 are fixedly disposed on two inner sides of the conveying support 51 in the width direction, the two guide grooves 511 are matched with the two vertical bars 612, two bull-eye bearings 512 are disposed on two side surfaces of each guide groove 511, the bull-eye bearings 512 are in rolling contact with two side surfaces of the vertical bars 612, which are close to the side surfaces of the guide grooves 511, two bearings 513 are disposed on two side surfaces of the guide grooves 511, and the bearings 513 are in rolling contact with the side surfaces of the vertical bars 612, which are far away from the conveying support 51; the lifting support 61 is connected with the telescopic rod of the oil cylinder or the air cylinder through a fisheye joint 613.

Referring to fig. 1 and 3, pusher shoe 7 includes eight first pusher shoe members 71; the first pushing and moving part 71 is fixedly arranged on the lifting device 6 and is parallel to the width direction of the steel bar truss floor bearing plate 4, a first pushing and moving plate 711 is arranged on the first pushing and moving part 71, and the first pushing and moving plate 711 is controlled to move along the Z axis by an air cylinder.

Referring to fig. 1 and 3, the pushing device 7 further includes eight second pushing parts 72, the second pushing parts 72 are at the same height as the second station 2, a second pushing plate 721 is disposed on the second pushing parts 72, and the second pushing plate 721 is controlled by the cylinder to move along the Z axis.

Referring to fig. 1, 2 and 3, the lifting device 9 is located on one side of the conveying device 5, the lifting device 9 includes six vertical supports 91, fourteen horizontal supports 92 and a lifting transmission shaft 93, the six vertical supports 91 are parallelly and fixedly arranged on the outer side of the conveying support 51 side by side, the lifting transmission shaft 93 is rotatably connected with the fourteen horizontal supports 92, the fourteen horizontal supports 92 are arranged in parallel, four gears are fixedly arranged on the lifting transmission shaft 93, the four gears are respectively engaged with four racks, the four racks are respectively fixedly arranged on the side surfaces of the vertical supports 91 far away from the conveying device 5, and the lifting transmission shaft 93 is in transmission connection with a motor and a speed reducer; the upper surface of the horizontal support 92 is a third station 3, the third station 3 is slightly lower than the second station 2, and the height difference between the second station 2 and the third station 3 is 0-8cm, so that the second push plate of the second push part can be conveniently pushed.

The above embodiments are only preferred embodiments of the present invention, and not intended to limit the present invention in other forms, and any person skilled in the art may apply the above embodiments with modifications and variations to the disclosed technical content to apply the equivalent embodiments in other fields, but any simple modification and equivalent variation made on the above embodiments according to the technical spirit of the present invention will still fall within the protection scope of the technical solution of the present invention.

Claims

1. The utility model provides a steel bar truss floor carrier plate pile up neatly method which characterized in that includes:

s1, feeding: the steel bar truss floor bearing plate (4) is conveyed to a first station (1) along the X-axis direction by a conveying device (5), the steel bar truss floor bearing plate (4) sends a signal after reaching a designated position, whether the steel bar truss floor bearing plate is an odd number block or an even number block is judged, if the steel bar truss floor bearing plate is the odd number block, S2 operation is carried out, and if the steel bar truss floor bearing plate is the even number block, S4 operation is carried out;

s2, lifting: the odd steel bar truss floor bearing plates (4) are lifted to the second station (2) by the lifting device (6) along the Y-axis direction;

s3, pushing: the odd steel bar truss floor bearing plates (4) are pushed to the third station (3) along the Z-axis direction by the pushing device (7), after the pushing is completed, the pushing device (7) returns to the original position, the lifting device (6) returns to the original position, and the S1 operation is repeated;

s4, overturning: the even number of steel bar truss floor bearing plates (4) are turned over to the previous odd number of steel bar truss floor bearing plates (4) by the turning device (8); the height displacement generated after the turnover of the even number of steel bar truss floor bearing plates (4) is equal to twice the rotation radius value of the turnover device (8);

s5, descending: the steel bar truss floor bearing plates (4) positioned at the third station (3) descend along the Y-axis direction along with the lifting device (9), and at the moment, the bottom die holder of the uppermost even number of steel bar truss floor bearing plates (4) is positioned at a new third station (3);

s6, when the lifting device (9) descends, the turnover device (8) returns to the original position; and repeating the S1 operation until the stacking height of the steel bar truss floor bearing plate (4) reaches a preset height.

2. The steel bar truss floor deck palletizing method according to claim 1, wherein the overturning device (8) comprises an overturning main shaft (81), an overturning frame (82), a clamp (83), an heightening frame (84) and a main shaft bracket (85);

the initial position of the material turning frame (82) is as high as the first station (1) and is parallel to the width direction of the steel bar truss floor bearing plate (4), and the clamp (83) is connected with the material turning frame (82) in a sliding mode to grab and place the steel bar truss floor bearing plate (4);

the overturning main shaft (81) is arranged in parallel to the length direction of the steel bar truss floor bearing plate (4), and the overturning main shaft (81) is higher than the material overturning frame (82) in the vertical direction;

one end, close to the turning main shaft (81), of the material turning frame (82) is fixedly connected with the heightening frame (84), the other end of the heightening frame (84) is fixedly connected with the turning main shaft (81), and a plurality of material turning frames (82) and a plurality of heightening frames (84) are arranged and are identical in number;

the turnover main shaft (81) is arranged on the main shaft support (85), and the turnover main shaft (81) is rotatably connected with the main shaft support (85) through a bearing.

3. The steel bar truss floor deck stacking method as claimed in claim 2, wherein the clamp (83) comprises two clamping jaws (831), the two clamping jaws (831) are respectively located at two ends of the material turnover frame (82), the two clamping jaws (831) slide oppositely or oppositely along the material turnover frame (82) to grab and place the steel bar truss floor deck (4), and the clamping jaws (831) are controlled by air cylinders or oil cylinders.

4. The steel bar truss floor deck stacking method as claimed in claim 2, wherein the turning device (8) controls the turning main shaft (81) to rotate through chain transmission or synchronous belt transmission, a first proximity switch and a second proximity switch are arranged in the turning device (8), the first proximity switch defines the turning limit position of the turning device (8), and the second proximity switch defines the returning limit position of the turning device (8) after the work is completed.

5. The steel bar truss floor deck stacking method as claimed in claim 1, wherein the conveying device (5) is at the same height as a workbench of the previous process, the conveying device (5) comprises a conveying bracket (51) and a plurality of conveying rollers (52) which are crossarm on the conveying bracket (51), the plurality of conveying rollers (52) are driven by a driving chain and a chain wheel, and the main shaft bracket (85) is fixedly arranged on one side edge of the conveying bracket (51); the first station (1) is located above the conveying roller (52), the conveying support (51) is provided with a proximity switch III, and the proximity switch III limits the position of the steel bar truss floor bearing plate (4) in the X-axis direction of the first station (1).

6. The steel bar truss floor deck stacking method as claimed in claim 1, wherein the initial position of the lifting device (6) is at the same height as the first station (1), the lifting device (6) comprises a plurality of lifting brackets (61), the lifting brackets (61) are controlled to lift through oil cylinders or air cylinders so as to lift the steel bar truss floor deck (4) to the second station (2), and the second station (2) is located above the first station (1).

7. The steel bar truss floor deck stacking method as claimed in claim 6, wherein the lifting support (61) comprises a cross bar (611) and two vertical bars (612), the vertical bars (612) are fixedly connected to two ends of the cross bar (611), the two vertical bars (612) are respectively connected with the conveying support (51) in a sliding manner, guide grooves (511) are fixedly formed in two inner sides of the conveying support (51) in the width direction, the two guide grooves (511) are matched with the two vertical bars (612), a bull eye bearing (512) is arranged on each of two side faces of each guide groove (511), the bull eye bearing (512) is in rolling contact with two side faces, close to the side faces of the guide grooves (511), of the vertical bars (612), bearings (513) are arranged on each of two side faces of the guide grooves (511), and the bearings (513) are in rolling contact with the side faces, far away from the conveying support (51), of the vertical bars (612); the lifting support (61) is connected with an expansion rod of an oil cylinder or an air cylinder through a fisheye joint (613).

8. A method for stacking steel bar truss floor decks according to claim 1, wherein the pushing device (7) comprises a plurality of first pushing elements (71); the first pushing part (71) is fixedly arranged on the lifting device (6) and is parallel to the width direction of the steel bar truss floor bearing plate (4), a first pushing plate (711) is arranged on the first pushing part (71), and the first pushing plate (711) is controlled to move along the Z axis through an oil cylinder or an air cylinder.

9. The steel bar truss floor deck stacking method as claimed in claim 8, wherein the pushing device (7) further comprises a plurality of second pushing parts (72), the second pushing parts (72) are at the same height as the second station (2), a second pushing plate (721) is arranged on the second pushing parts (72), and the second pushing plate (721) is controlled to move along the Z axis by an oil cylinder or an air cylinder.

10. The steel bar truss floor deck stacking method as claimed in claim 1, wherein the lifting device (9) is located on one side of the conveying device (5), and the lifting device (9) comprises a plurality of vertical supports (91), a plurality of horizontal supports (92) and a lifting transmission shaft (93), the plurality of vertical supports (91) are fixedly arranged on the outer side of the conveying support (51) in parallel side by side, the lifting transmission shaft (93) is rotatably connected with the plurality of horizontal supports (92) through a bearing, the plurality of horizontal supports (92) are arranged in parallel, a plurality of gears are fixedly arranged on the lifting transmission shaft (93), each gear is respectively engaged with one rack, the plurality of racks are fixedly arranged on the side surface of the vertical support (91) far away from the conveying device (5), and a motor and a speed reducer are in transmission connection with the lifting transmission shaft (93);

the upper surface of the horizontal support (92) is a third station (3), the third station (3) is equal to or lower than the height of the second station (2), and the height difference range between the second station (2) and the third station (3) is 0-8cm.