CN113275900A - Production process of steel bar truss special for non-dismantling formwork floor support plate - Google Patents

Abstract

The invention belongs to the technical field of floor bearing plates, and particularly relates to a production process of a steel bar truss special for a mould-removal-free floor bearing plate, which comprises the processes of steel bar straightening, web member steel bar bending, truss welding, base welding, stepping shearing and the like; wherein, the base welding process comprises: storing the truss base through a material storage system and conveying the truss base to a material storage system; conveying the truss base to the position right below a truss lower chord rib through a feeding system; and welding the truss base and the truss through a welding system. The invention adds the base welding and automatic shearing process on the basis of reinforcing steel bar straightening, web member reinforcing steel bar bending and truss welding, solves the problem that the prior art cannot meet the requirement of welding the base and the reinforcing steel bar truss in advance and has low production efficiency, realizes the flow line production of the truss special for the die-removal-free floor bearing plate, improves the production efficiency, and has convenient operation, safety and reliability.

Description

Production process of steel bar truss special for non-dismantling formwork floor support plate

Technical Field

The invention belongs to the technical field of floor bearing plates, and particularly relates to a production process of a steel bar truss special for a mould-disassembly-free floor bearing plate.

Background

The steel bar truss is formed by connecting steel bars serving as an upper chord, a lower chord and web members through resistance spot welding, and the steel bar truss and the bottom plate are connected into a whole combined bearing plate through resistance spot welding, namely a steel bar truss floor bearing plate. In order to meet different requirements, the manufacturing process of the steel bar truss is also continuously improved. If chinese patent CN205325187U discloses a full-automatic plane steel bar truss welding production line, including the pay off rack, aligning mechanism, storage mechanism, the mechanism of bending, welding mechanism, step straightening mechanism, shear mechanism and the mechanism of gathering materials, the pay off rack is established at the production line foremost, the pay off rack rear is equipped with aligning mechanism, aligning mechanism rear is equipped with storage mechanism, storage mechanism rear is equipped with the mechanism of bending, bending mechanism rear is equipped with welding mechanism, welding mechanism rear is equipped with step straightening mechanism, step straightening mechanism rear is equipped with the mechanism of shearing, shearing mechanism rear is equipped with the mechanism of gathering materials, can automize, produce the plane steel bar truss with high efficiency. Chinese patent CN106862439A discloses a production line of steel bar truss floor carrier plate, including the unwrapping wire unit that sets gradually, straightening unit, web bar bending unit, welding unit, step-by-step unit, shearing unit, output unit, gas welding unit and bottom plate welding unit, the gas welding unit is including the frame that is used for supporting the steel bar truss, fixed connection in the frame and drive the actuating mechanism of support horizontal reinforcement and the vertical reinforcing bar conflict steel bar truss tip of support to and connect in the frame and be used for all welding support horizontal reinforcement and the vertical reinforcing bar of support in the soldering machine of steel bar truss, contradict the tip of steel bar truss through actuating mechanism drive support horizontal reinforcement and the vertical reinforcing bar of support, then rethread welding machine with support horizontal reinforcement and the vertical reinforcing bar of support welding in the tip of unformed steel bar truss, make things convenient for staff's welding. Exempt from to tear open mould steel bar truss floor carrier plate is a novel assembled floor product, adopts the fiber cement board to replace traditional profiled sheet die block board, adopts self-tapping screw and connection base to be connected fiber cement board and steel bar truss fixed, realizes that the installation is swift, and extensive applicability's demand is one of novel floor construction selection for assembly type building. In order to realize the large-scale production of the product, the connecting base and the steel bar truss need to be welded together in advance, but the current production process of the steel bar truss cannot meet the requirement, and the production efficiency is low.

Disclosure of Invention

The invention aims to overcome the defects in the prior art, provides a production process of a special steel bar truss for a non-dismantling formwork floor support plate, and realizes the flow line production of the special truss for the non-dismantling formwork floor support plate by adopting a base welding and automatic shearing process.

The technical scheme adopted by the invention for solving the technical problems is as follows:

a production process of a steel bar truss special for a die-disassembly-free floor bearing plate comprises the processes of steel bar straightening, web member steel bar bending, truss welding, base welding, stepping shearing and the like; wherein, the base welding process comprises:

s1, storing the truss bases through a material storage system and conveying the truss bases to a material feeding system;

s2, conveying the truss base to the position right below the truss lower chord rib through a feeding system;

and S3, welding the truss base and the truss through a welding system.

Further, in order to dock fast with exempting from to tear open mould steel bar truss building carrier plate production line, finish the back at steel bar truss shearing, increase unloading upset station, get into finished product unloading upset station after step-by-step shearing technology accomplishes promptly: the finished floor bearing plate enters a turnover mechanism of a finished product blanking turnover station through a chain plate production line, is sucked up by a vacuum turnover sucker and is turned into a material receiving tool, and in the process, the floor bearing plate is automatically turned over for 180 degrees on the turnover sucker until a steel bar truss faces upwards; and then the finished floor bearing plate is grabbed by the transfer grab plate and stacked on the finished stacking area vehicle plate.

Further, storage system is vibration dish autoloader, and vibration dish autoloader includes vibrating device and the vibration dish of setting on vibrating device, the circular helical structure that rises that high, the periphery is low in the middle of the vibration dish is equipped with the track groove that is used for placing the base in the vibration dish, through the vibrating device vibration, makes the base get into the track inslot, and the track groove is low high outward, can prevent at the storage case vibration transmission in-process that the material from dropping.

Furthermore, the track grooves are divided into three levels and comprise a first-level track groove, a second-level track groove and a third-level track groove, the first-level track groove is used for feeding materials into the grooves, a width screening device a is arranged in the second-level track groove and aims to reject bases with the width exceeding the limit in the first-level track groove, a height screening device b is arranged in the third-level track groove and aims to reject bases with the height exceeding the limit after the second-level track groove is screened, and all the materials entering the feeding system can meet the use requirements through the third-level screening; preferably, the width screening device a and the height screening device b both adopt limiting plates.

Further, the feeding system comprises a buffering storage device and a pushing device, the upper portion of the buffering storage device is connected with the three-level track groove through a feeding track, the buffering storage device can adjust the middle link of the mismatching of the feeding speed of the storage system and the speed of the welding system, the pushing device and the outlet of the buffering storage device are perpendicularly arranged, and the base is pushed to the welding formulating station one by one through the pushing device.

Further, the base is a short square tube; the material storage systems comprise two groups which are respectively positioned at two sides of the feeding system and simultaneously supply materials to the feeding system; the welding system comprises an upper group of electrode blocks, a lower group of electrode blocks and two groups of pressing devices which are respectively used for pressing the two groups of electrode blocks, wherein each group of electrode blocks comprises two electrode blocks; the upper surface of the electrode block positioned below is provided with a groove for receiving the base, the base can be ensured to be positioned under the truss lower chord rib after the base is pushed into the groove one by the pushing device, the height of the groove is lower than that of the base, the base can be ensured to be in complete contact with the truss rib, the electrode block above falls under the pushing of the pressing device after the base is positioned in place, the truss and the base are compacted and in close contact, the electrified welding is firm, and the assembly is completed.

Further, the base is a through-long square tube; the material storage systems are arranged in a group and are positioned on one side of the feeding system to supply materials to the feeding system; the buffer storage device is used for loading the through-long square tube; the welding system comprises an upper group of electrode blocks, a lower group of electrode blocks and two groups of pressing devices which are respectively used for pressing the two groups of electrode blocks, wherein each group of electrode blocks comprises two electrode blocks; the upper surface of the electrode block, which is located below and far away from the buffering storage device, is provided with a groove for receiving the base, the upper surface of the electrode block, which is located below and close to the buffering storage device, is a horizontal plane, and after the through-long square tubes are pushed into the groove one by the pushing device, the through-long square tubes can be ensured to be located under the lower chord ribs of the truss, and the height of the groove is lower than that of the through-long square tubes.

Further, the turnover mechanism comprises a material receiving frame, a guide table, an electromagnetic adsorption material turnover device, a material receiving tool, a connection conveying device, a truss stacking tool, a truss positioning backup plate and a servo push plate assembly; the electromagnetic adsorption turning device comprises a rotary pressure cylinder arranged on the guide table and an electromagnet arranged on the rotary pressure cylinder, and the material receiving frame is arranged on the rotary pressure cylinder; a truss stacking tool is arranged below the electromagnetic adsorption material overturning device, the truss stacking tool is positioned on the connection conveying device, and the connection conveying device is used for driving the truss stacking tool to move; connect the material frock to be located conveyor one side of plugging into for bear truss stack frock, the conveyor one side of plugging into is equipped with truss location backup plate, and the conveyor bottom of plugging into is equipped with lift transfer chain and servo push pedal subassembly.

The truss stacking tool is a tool used for truss turnover between a truss production line and a floor support plate assembly line, the processed truss is stacked on the truss production line according to requirements, and the truss is directly transported to the floor support plate production line through the tool, so that efficient butt joint of two production processes is realized; the trusses placed in the truss stacking tool are stacked according to a unified standard through the truss positioning backup plate, the relative position error of the trusses is controlled within a range when the trusses are conveniently taken in groups, the servo push plate assembly is used for pushing the truss stacking tool and is used for achieving the unified stacking of a plurality of groups of trusses, in the production of a subsequent building bearing plate assembly line, the trusses are a group of a plurality of trusses (generally 6 trusses) and are grabbed simultaneously, therefore, the unified stacking of the plurality of groups of trusses is needed to be completed when the trusses are stacked, but the electromagnetic adsorption material overturning device is fixed to the material receiving table and cannot move, so that the truss stacking tool is designed to be movable, after a group of material grooves are fully stacked, the truss material grooves in the tool are stacked according to a set size through the connection conveying device, and the truss material grooves in the tool are stacked one by one.

Further, the step-by-step shearing process comprises two steps of shearing and flattening:

l1, shearing of the tail of the previous truss: firstly, judging the position of the end part of the truss, which is away from the nearest base, and shearing to ensure that the tail part relative position of the former truss meets the use requirement;

l2, smoothing: and then automatically tracking and correcting according to the requirement of the relative position of the front part of the next truss and the nearest base according to the design requirement, reducing the overlong part, enabling the front part relative position of the next truss to meet the use requirement, further enabling the distances between the bases closest to the ends of all the cut trusses and the ends of the trusses to be consistent, and entering an aggregate device after finishing the cutting.

Compared with the prior art, the invention has the following advantages: the production process of the special steel bar truss for the die-removal-free floor bearing plate is additionally provided with the base welding and automatic shearing processes on the basis of steel bar straightening, web member steel bar bending and truss welding, realizes the flow line production of the special truss for the die-removal-free floor bearing plate, improves the production efficiency, and is convenient to operate, safe and reliable.

Drawings

Fig. 1 is a schematic structural diagram (in an unwelded state) of a material storage system, a material loading system and a welding system according to embodiment 1 of the present invention;

FIG. 2 is an enlarged view of the portion A of FIG. 1 according to the present invention;

FIG. 3 is a top view of FIG. 1 in accordance with the present invention;

FIG. 4 is a top view of the track groove of the present invention;

fig. 5 is a schematic structural diagram (welding state) of the material storage system, the material loading system and the welding system in embodiment 1 of the present invention;

FIG. 6 is an enlarged view of the portion B of FIG. 5 according to the present invention;

FIG. 7 is a schematic view of the structure of the turnover mechanism of the present invention;

FIG. 8 is a process flow diagram of the present invention;

fig. 9 is a schematic structural diagram (welding state) of the material storage system, the material loading system and the welding system in embodiment 2 of the present invention.

In the figure, the vibrating plate 1, the vibrating device 2, the short square tube 3, the track groove 4, the first-stage track groove 401, the second-stage track groove 402, the third-stage track groove 403, the feeding track 404, the width screening device a5, the height screening device b6, the buffer storage device 7, the pushing device 8, the electrode block 9, the pressing device 10, the groove 11, the material receiving frame 12, the guide table 13, the electromagnetic adsorption material turning device 14, the rotary pressure cylinder 141, the electromagnet 142, the material receiving tool 15, the connection conveying device 16, the truss stacking tool 17, the truss positioning backup plate 18, the servo push plate assembly 19, the lifting conveying line 20 and the through long square tube 21 are arranged.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention are clearly and completely described below with reference to the drawings of the specification.

Example 1:

the production process of the steel bar truss special for the disassembly-free formwork floor bearing plate comprises the processes of steel bar straightening, web member steel bar bending, truss welding, base welding, stepping shearing and the like; the base welding process comprises the following steps:

s1, storing the truss bases through a material storage system and conveying the truss bases to a material feeding system;

s2, conveying the truss base to the position right below the truss lower chord rib through a feeding system;

and S3, welding the truss base and the truss through a welding system.

Specifically, as shown in fig. 8, the steel wire is sequentially passed through a pay-off rack, a straightening wire feeding part, a material storing part, a web bending part, a truss welding part, a base welding part, a stepping shearing part and a material collecting part.

In order to dock fast with exempting from to tear open mould steel bar truss building carrier plate production line, finish the back at steel bar truss shearing, increase unloading upset station, get into finished product unloading upset station after step-by-step shearing technology accomplishes promptly: the finished floor bearing plate enters a turnover mechanism of a finished product blanking turnover station through a chain plate production line, is sucked up by a vacuum turnover sucker and is turned into a material receiving tool, and in the process, the floor bearing plate is automatically turned over for 180 degrees on the turnover sucker until a steel bar truss faces upwards; and then the finished floor bearing plate is grabbed by the transfer grab plate and stacked on the finished stacking area vehicle plate.

Because the trusses are assembled simultaneously in a plurality of groups, the position error of the base of each truss group is not more than 2mm, the length error of the whole truss can only be ensured by the common stepping shearing process, and the relative position of the end part of the truss and the nearest base cannot be judged and accurately sheared. Therefore, the step-by-step shearing process is divided into two steps of shearing and flattening:

l1, shearing of the tail of the previous truss: firstly, judging the position of the end part of the truss, which is away from the nearest base, and shearing to ensure that the tail part relative position of the former truss meets the use requirement;

l2, smoothing: and then automatically tracking and correcting according to the requirement of the relative position of the front part of the next truss and the nearest base according to the design requirement, reducing the overlong part, enabling the front part relative position of the next truss to meet the use requirement, further enabling the distances between the bases closest to the ends of all the cut trusses and the ends of the trusses to be consistent, and entering an aggregate device after finishing the cutting.

The base welding process comprises a material storage system, a feeding system and a welding system, wherein the material storage system comprises two groups, the two groups of material storage systems are respectively located on two sides of the feeding system and simultaneously supply materials for the feeding system.

The storage system is vibration dish autoloader, and vibration dish autoloader includes vibrating device 2 and the vibration dish 1 of setting on vibrating device 2, high, the peripheral low circular spiral structure that rises in the middle of vibration dish 1 is, is equipped with the track groove 4 that is used for placing the base in the vibration dish 1, through the vibration of vibrating device 2, makes the base get into track groove 4 in, and track groove 4 is low interior height outward, can prevent that the material from dropping in the 1 vibration transmission course of storage case.

The track groove 4 is divided into three stages, the size of the first-stage track groove 401 is the largest, so that materials enter the groove, a width screening device a5 is arranged in the second-stage track groove 402, the purpose is to remove bases with the width exceeding the limit in the first-stage track groove 401, a height screening device b6 is arranged in the third-stage track groove 403, the purpose is to remove bases with the height exceeding the limit after the second-stage track groove 402 is screened, and through three-stage screening, all the materials entering the feeding system are ensured to meet the use requirements; preferably, the width screening device a5 and the height screening device b6 both adopt limit plates.

The feeding system comprises a buffering storage device 7 and a pushing device 8, the upper portion of the buffering storage device 7 is connected with a three-level track groove 403 through a feeding track 404, the buffering storage device 7 can adjust the middle link of the mismatching of the feeding speed of the storage system and the speed of the welding system, the pushing device 8 and the outlet of the buffering storage device 7 are perpendicularly arranged, and the base is pushed to the welding formulation station one by one through the pushing device 8.

The welding system of the embodiment adopts a resistance welding process, and comprises an upper group of electrode blocks 9 and a lower group of electrode blocks 9 and two groups of pressing devices 10 which are respectively used for pressing the two groups of electrode blocks 9, wherein each group of electrode blocks 9 comprises two electrode blocks 9; the upper surface of the electrode block 9 positioned below is provided with a groove 11 for receiving the base, after the pushing device 8 pushes the base into the groove 11 one by one, the base can be ensured to be positioned under the lower chord rib of the truss, the height of the groove 11 is slightly lower than that of the base, the base can be ensured to be in complete contact with the truss rib, after the base is positioned in place, the electrode block 9 positioned above falls under the pushing of the pressing device 10, the truss and the base are compacted and in close contact, the power-on welding is firm, and the assembly is completed.

The base is short square tube 3.

Specifically, the steel bar straightening process adopts a straightening mechanism to straighten the steel bars, the straightening mechanism comprises a coiled steel bar storage system and a straightening and feeding system, the coiled steel bar storage realizes the storage and conveying functions of coiled steel bars through a coiled steel bar frame with a power system, the straightening system adopts a multi-wheel straightening process, and the straightening system is composed of a guide wheel, a horizontal straightening wheel and a vertical straightening wheel, the traction and feeding are realized during the straightening process, the steel bar straightening process adopts the prior art, and the process is not repeated.

In the bending process of the web member reinforcing steel bar, due to the fact that the lengths of the trusses are different, the single pitch range is 200mm +/-10 mm in order to meet the requirement that the end points of the trusses are located at the welding positions of the web member reinforcing steel bars, and the single pitch range can be properly adjusted.

The truss welding process adopts the prior art and is not repeated in the invention, which is characterized in that the truss welding process adopts horizontal plane resistance welding and is divided into an upper welding part and a lower welding part, the upper welding part and the lower welding part are both composed of two groups of electrode blocks, and the straightened upper chord steel bar and the straightened lower chord steel bar are tightly pressed and welded with the web member steel bar through a pneumatic pushing device of the electrode blocks.

The turnover mechanism comprises a material receiving frame 12, a guide table 13, an electromagnetic adsorption material turnover device 14, a material receiving tool 15, a connection conveying device 16, a truss stacking tool 17, a truss positioning backup plate 18 and a servo push plate assembly 19; the electromagnetic adsorption stirring device 14 comprises a rotary pressure cylinder 141 arranged on the guide table 13 and an electromagnet 142 arranged on the rotary pressure cylinder 141, and the material receiving frame 12 is arranged on the rotary pressure cylinder 141; a truss stacking tool 17 is arranged below the electromagnetic adsorption upender 14, the truss stacking tool 17 is positioned on the connection conveying device 16, and the connection conveying device 16 is used for driving the truss stacking tool 17 to move; the material receiving tool 15 is located on one side of the connecting and conveying device 16 and used for bearing a truss stacking tool 17, a truss positioning backup plate 18 is arranged on one side of the connecting and conveying device 16, and a lifting conveying line 20 and a servo push plate assembly 19 are arranged at the bottom of the connecting and conveying device 16.

The truss stacking tool 17 is a tool used for truss turnover between a truss production line and a floor support plate assembly line, and is used for directly transferring the processed trusses to the floor support plate production line through the tool after stacking on the truss production line according to requirements so as to realize efficient butt joint of two production processes; the trusses placed in the truss stacking tool 17 are stacked according to a unified standard through the truss positioning backup plate 18, the relative position error of the trusses is controlled within a range when the trusses are taken in groups, the servo push plate assembly 19 is used for pushing the truss stacking tool 17 and is used for achieving the unified stacking of multiple groups of trusses, in the production of a subsequent building bearing plate assembly line, the trusses are a group of multiple trusses (generally 6 trusses) and are grabbed simultaneously, therefore, the unified stacking of the multiple groups of trusses is needed to be completed when the trusses are stacked, but the electromagnetic adsorption material overturning device 14 is fixed to the material receiving table and cannot move, the truss stacking tool 17 is designed to be movable, after a group of material grooves are fully stacked, the truss material grooves in the tool are stacked one by one through the connection conveying device 16 moving according to a set size.

The turnover mechanism during operation, the steel bar truss that will cut is pulled out through the lacing wire device and is sent into and connect work or material rest 12, guide table 13 carries out accurate location with the truss, adsorb the back through electromagnetism and carry out 180 upsets with the steel bar truss through stirring device 14, and simultaneously, the truss stack frock 17 of bottom is through plugging into conveyor 16 and accurately move to the position of setting for, electromagnetism adsorbs stirring device 14 outage, the truss falls into truss stack frock 17, servo push pedal subassembly 19 moves and pushes away truss stack frock 17 to connect work or material frock 15, through the limit function of truss location backup plate 18, it is neat to stack the truss.

Example 2:

this embodiment the base is logical rectangular pipe 21, wherein, storage system only needs to set up a set ofly and be located feeding system one side, for the feeding system feed. The welding system comprises an upper group of electrode blocks 9 and a lower group of electrode blocks 9 and two groups of pressing devices 10 which are respectively used for pressing the two groups of electrode blocks 9, wherein each group of electrode blocks 9 comprises two electrode blocks 9;

the buffer storage device 7 is used for loading the through-long square tube 21; the upper surface of an electrode block 9 which is located below and far away from the buffering and storing device 7 is provided with a groove 11 used for receiving a base, the upper surface of the electrode block 9 which is located below and close to the buffering and storing device 7 is a horizontal plane, the pushing device 8 pushes the through rectangular pipe 21 into the groove 11 one by one, the through rectangular pipe 21 can be located under a truss lower chord rib, the height of the groove 11 is slightly lower than the height of the through rectangular pipe 21, the through rectangular pipe 21 can be completely contacted with the truss rib, after the through rectangular pipe 21 is located, the electrode block 9 above falls under the pushing of the pressing device 10, the truss and the through rectangular pipe 21 are compacted and tightly contacted, and the power-on welding is firm.

The above embodiments are only specific examples of the present invention, and the protection scope of the present invention includes but is not limited to the product forms and styles of the above embodiments, and any suitable changes or modifications made by those skilled in the art according to the claims of the present invention shall fall within the protection scope of the present invention.

Claims (12)

1. The production process of the steel bar truss special for the disassembly-free formwork floor bearing plate is characterized by comprising the following steps of: comprises the processes of reinforcing steel bar straightening, web member reinforcing steel bar bending, truss welding, base welding and step shearing; wherein, the base welding process comprises:

s1, storing the truss bases through a material storage system and conveying the truss bases to a material feeding system;

s2, conveying the truss base to the position right below the truss lower chord rib through a feeding system;

and S3, welding the truss base and the truss through a welding system.

2. The production process of the steel bar truss special for the non-demolition mold floor bearing plate according to claim 1, wherein the production process comprises the following steps: and after the stepping shearing process is finished, entering a finished product blanking overturning station: the finished floor bearing plate enters a turnover mechanism of a finished product blanking turnover station through a chain plate production line, is sucked up by a vacuum turnover sucker and is turned into a material receiving tool, and in the process, the floor bearing plate is automatically turned over for 180 degrees on the turnover sucker until a steel bar truss faces upwards; and then the finished floor bearing plate is grabbed by the transfer grab plate and stacked on the finished stacking area vehicle plate.

3. The production process of the steel bar truss special for the disassembly-free formwork floor bearing plate according to claim 1 or 2, which is characterized in that: the storage system is vibration dish autoloader, and vibration dish autoloader includes vibrating device and the vibration dish of setting on vibrating device, the circular helical structure that rises that high, the periphery is low in the middle of the vibration dish is equipped with the track groove that is used for placing the base in the vibration dish, through the vibrating device vibration, makes the base get into the track inslot.

4. The production process of the steel bar truss special for the non-demolition mold floor bearing plate according to claim 3, wherein the production process comprises the following steps: the track groove is divided into three levels, including a first-level track groove, a second-level track groove and a third-level track groove, the first-level track groove is used for feeding materials into the groove, the second-level track groove is internally provided with a width screening device a, and the third-level track groove is internally provided with a height screening device b.

5. The production process of the steel bar truss special for the non-demolition mold floor bearing plate according to claim 4, wherein the production process comprises the following steps: the feeding system comprises a buffering material storage device and a pushing device, wherein the upper portion of the buffering material storage device is connected with a three-level track groove through a feeding track, the pushing device is perpendicular to an outlet of the buffering material storage device, and a base is pushed one by one to a welding formulation station through the pushing device.

6. The production process of the steel bar truss special for the non-demolition mold floor bearing plate according to claim 5, wherein the production process comprises the following steps: the base is a short square tube.

7. The production process of the steel bar truss special for the non-demolition mold floor bearing plate according to claim 6, wherein the production process comprises the following steps: the material storage systems comprise two groups which are respectively positioned at two sides of the feeding system and simultaneously supply materials to the feeding system; the welding system comprises an upper group of electrode blocks, a lower group of electrode blocks and two groups of pressing devices which are respectively used for pressing the two groups of electrode blocks, each group of electrode blocks comprises two electrode blocks, and grooves for receiving the bases are formed in the upper surfaces of the electrode blocks located below the electrode blocks.

8. The production process of the steel bar truss special for the non-demolition mold floor bearing plate according to claim 5, wherein the production process comprises the following steps: the base is a through-long square tube.

9. The production process of the steel bar truss special for the non-demolition mold floor bearing plate according to claim 8, wherein the production process comprises the following steps: the material storage systems are arranged in a group and are positioned on one side of the feeding system to supply materials to the feeding system; the buffer storage device is used for loading the through-long square tube; the welding system comprises an upper group of electrode blocks, a lower group of electrode blocks and two groups of pressing devices which are respectively used for pressing the two groups of electrode blocks, wherein each group of electrode blocks comprises two electrode blocks; the upper surface of the electrode block, which is located below and far away from the buffering storage device, is provided with a groove for receiving the base, the upper surface of the electrode block, which is located below and close to the buffering storage device, is a horizontal plane, and after the through-long square tubes are pushed into the groove one by the pushing device, the through-long square tubes can be ensured to be located under the lower chord ribs of the truss, and the height of the groove is lower than that of the through-long square tubes.

10. The production process of the steel bar truss special for the non-dismantling formwork floor deck according to any one of claims 1, 2 and 4 to 9, wherein the production process comprises the following steps: the turnover mechanism comprises a material receiving frame, a guide table, an electromagnetic adsorption material turnover device, a material receiving tool, a connection conveying device, a truss stacking tool, a truss positioning backup plate and a servo push plate assembly; the electromagnetic adsorption turning device comprises a rotary pressure cylinder arranged on the guide table and an electromagnet arranged on the rotary pressure cylinder, and the material receiving frame is arranged on the rotary pressure cylinder; a truss stacking tool is arranged below the electromagnetic adsorption material overturning device, the truss stacking tool is positioned on the connection conveying device, and the connection conveying device is used for driving the truss stacking tool to move; connect the material frock to be located conveyor one side of plugging into for bear truss stack frock, the conveyor one side of plugging into is equipped with truss location backup plate, and the conveyor bottom of plugging into is equipped with lift transfer chain and servo push pedal subassembly.

11. The production process of the steel bar truss special for the non-dismantling formwork floor deck according to any one of claims 1, 2 and 4 to 9, wherein the production process comprises the following steps: the step shearing process comprises two steps of shearing and flattening:

l1, shearing of the tail of the previous truss: firstly, judging the position of the end part of the truss, which is away from the nearest base, and shearing to ensure that the tail part relative position of the former truss meets the use requirement;

l2, smoothing: and then automatically tracking and correcting according to the requirement of the relative position of the front part of the next truss and the nearest base according to the design requirement, reducing the overlong part, enabling the front part relative position of the next truss to meet the use requirement, further enabling the distances between the bases closest to the ends of all the cut trusses and the ends of the trusses to be consistent, and entering an aggregate device after finishing the cutting.

12. The production process of the steel bar truss special for the non-demolition mold floor bearing plate according to claim 10, wherein the production process comprises the following steps: the step shearing process comprises two steps of shearing and flattening:

l1, shearing of the tail of the previous truss: firstly, judging the position of the end part of the truss, which is away from the nearest base, and shearing to ensure that the tail part relative position of the former truss meets the use requirement;

l2, smoothing: and then automatically tracking and correcting according to the requirement of the relative position of the front part of the next truss and the nearest base according to the design requirement, reducing the overlong part, enabling the front part relative position of the next truss to meet the use requirement, further enabling the distances between the bases closest to the ends of all the cut trusses and the ends of the trusses to be consistent, and entering an aggregate device after finishing the cutting.

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