CN114559184A

CN114559184A - Automatic welding device and welding method for metal mesh

Info

Publication number: CN114559184A
Application number: CN202210120820.9A
Authority: CN
Inventors: 钟先友; 王宇; 钟继成; 刘一帆; 谢典; 张廉
Original assignee: China Three Gorges University CTGU
Current assignee: China Three Gorges University CTGU
Priority date: 2022-02-09
Filing date: 2022-02-09
Publication date: 2022-05-31

Abstract

The invention provides an automatic metal mesh welding device and a welding method, the device comprises a machine table, support frames are arranged on two sides of the machine table, vertical sliders are arranged at two ends of a welding frame, a welding gun is arranged on the welding frame, vertical slide rails matched with the vertical sliders are arranged on the support frames, the welding frame is driven up and down through an up-down driving mechanism, a transverse wire feeding mechanism is arranged on the machine table, a wire feeding hole for a longitudinal wire to pass through is formed in each support frame, and a longitudinal wire feeding mechanism is arranged on one side of each wire feeding hole. The welding device and the welding method can realize continuous welding processing of the metal mesh and improve the production efficiency.

Description

Automatic welding device and welding method for metal mesh

Technical Field

The invention relates to the technical field of automation, in particular to an automatic welding device and method for a metal mesh.

Background

At present, the domestic metal welding mostly adopts a manual welding mode. In the field of machining and material forming industries, welding forming is one of the most common techniques, and the development of welding techniques can also be used as one of the criteria for evaluating the level of industry in one country. In the production of automatic equipment, the welding technology level directly affects the product quality and the production efficiency of the product, and meanwhile, the welding technology is used in many industries, so that the actual demand of the industry on the automatic production equipment is increased day by day. However, because the degree of automation in China is low, production and manufacturing in enterprises are still carried out in a semi-automatic mode, the feeding part is completed manually, a metal wire welding material with a required length is prepared in a shearing link in advance, then the material is manually placed to a target position by a worker to be clamped, and then repeated positioning of welding points is needed during welding. The mode has the disadvantages of complicated work, high labor intensity, low efficiency, insufficient accuracy, incapability of guaranteeing the product quality and high cost.

Disclosure of Invention

The invention aims to provide an automatic welding device and method for a metal mesh, so that the continuous welding processing of the metal mesh is realized, and the production efficiency is improved.

In order to solve the technical problems, the technical scheme adopted by the invention is as follows: the utility model provides a metal mesh automatic welder, includes the board, and the board both sides are equipped with the support frame, and the weld holder both ends are equipped with vertical slider, are equipped with welder on the weld holder, be equipped with on the support frame with vertical slider complex vertical slide rail, the weld holder drives from top to bottom through upper and lower actuating mechanism, is equipped with horizontal silk thread feeding mechanism on the board, is equipped with on the support frame to supply to indulge the silk hole that passes, send a hole one side to be equipped with and indulge silk thread feeding mechanism.

In the preferred scheme, the upper and lower driving mechanism comprises a driving shaft arranged on the machine table, driving wheels are arranged at two ends of the driving shaft, a connecting rod is arranged at an eccentric position on the driving wheels and is hinged to the driving rod, the upper end of the driving rod is connected with the welding frame through a hinged support, and the driving shaft is driven by a driving motor.

In the preferred scheme, horizontal wire feed mechanism includes the horizontal silk deflector, is equipped with the horizontal wire feeding hole that supplies the horizontal silk to wear out on the horizontal silk deflector, and one side that the welding frame was kept away from to the horizontal silk deflector is equipped with wire drive feed unit, and wire drive feed unit passes through the drive of a actuating mechanism, and one side that the horizontal deflector is close to the welding frame is equipped with limit baffle.

In a preferred scheme, the longitudinal wire feeding mechanism comprises a supporting table, a wire feeding device is arranged on the supporting table, and the wire feeding device is driven by a second driving mechanism.

In a preferable scheme, the wire feeding device comprises a mounting frame, rotating shafts of wire feeding wheels which are arranged in a matched mode are rotatably mounted on the mounting frame, transverse wires or longitudinal wires penetrate through the two wire feeding wheels, gears which are meshed with each other are arranged on the rotating shafts of the wire feeding wheels, and the rotating shaft of one wire feeding wheel is connected with the first driving mechanism or the second driving mechanism.

In a preferred scheme, the first driving mechanism comprises a first driving motor, and the first driving motor is connected with a rotating shaft of the corresponding wire feeding wheel through a belt transmission mechanism; the second driving mechanism comprises a second driving motor, and the output end of the second driving motor is connected with the rotating shaft of the corresponding wire feeding wheel through a coupler.

In the preferred scheme, the support frame inboard is equipped with indulges the silk and cuts the mechanism, indulges the silk and cuts the mechanism and include cutting the frame, cuts the frame top and is equipped with the stationary knife, and the stationary knife below is equipped with the activity sword, indulges the silk setting between stationary knife and activity sword, and the activity sword passes through the pneumatic cylinder and drives from top to bottom.

In the preferred scheme, including drawing the net mechanism, horizontal thread feeding mechanism and drawing the net mechanism setting are in the both sides of weld holder, draw the net mechanism including setting up the guide rail on the board, remove a tip be equipped with guide rail complex slider, remove a bottom be equipped with lead screw complex screw, the lead screw passes through servo motor drive, remove a upside and be equipped with vertical cylinder, the telescopic link top of vertical cylinder is equipped with and draws the frame, draw the frame and be equipped with the drag hook near one side of weld holder.

In the preferred scheme, correspond send the silk hole to be equipped with and send a section of thick bamboo, send a section of thick bamboo one side to be equipped with the blown down tank, the blown down tank bottom is equipped with the godet board that the slope set up, send a section of thick bamboo one side to be equipped with the push wire mechanism, the push wire mechanism is including setting up the cylinder mounting bracket in a section of thick bamboo one side of sending, horizontal cylinder setting is on the cylinder mounting bracket, the flexible end of horizontal cylinder is equipped with the drive ring, it is equipped with the connecting axle to send a section of thick bamboo upside, the upper end of driving lever is equipped with the swivel becket and installs at the connecting axle rotatably, the driving lever lower extreme penetrates in the drive ring, it is equipped with the notch to send a section of thick bamboo to correspond the driving lever.

The invention also provides a welding method of the automatic metal mesh welding device, which comprises the following steps:

the method comprises the following steps that firstly, a wire feeding device of a transverse wire feeding mechanism moves along a transverse wire feeding hole under the driving of a first driving mechanism to feed transverse wires;

secondly, feeding the longitudinal wires along a wire feeding hole by a wire feeding device of the longitudinal wire feeding mechanism under the driving of a second driving mechanism;

step three, after the longitudinal wire is fed, starting a hydraulic cylinder, and enabling a movable knife to move upwards to cut the longitudinal wire;

starting the transverse cylinder to drive the shifting lever to rotate, pushing the longitudinal wire out of the wire feeding barrel, discharging the longitudinal wire from the discharge chute, moving the longitudinal wire along the wire guide plate, and after the longitudinal wire moves to the position of the limiting baffle plate, driving the shifting lever to reset by the transverse cylinder;

Fifthly, the upper and lower driving mechanisms drive the welding frame to move downwards to weld the intersection points of the longitudinal wires and the transverse wires, and the upper and lower driving mechanisms drive the welding frame to move upwards to reset;

a servo motor drives a lead screw to rotate, a movable frame is driven to move along a guide rail, a vertical cylinder extends, a draw hook is inserted into one side of a longitudinal wire, the servo motor drives the lead screw to rotate reversely, the movable frame drives a metal net to move forwards, meanwhile, a transverse wire feeding mechanism carries out feeding and feeding at the same distance, and the vertical cylinder resets;

and seventhly, repeating the second step to the sixth step until the metal mesh welding is completed.

The automatic welding device for the metal mesh realizes the automatic feeding of the transverse wires and the longitudinal wires, realizes the fixed-length shearing of the longitudinal wires through the longitudinal wire shearing mechanism, then realizes the automatic feeding of the longitudinal wires through the wire pushing mechanism, realizes the cross arrangement of the transverse wires and the longitudinal wires, then drives a welding gun to move downwards through the upper and lower driving mechanisms, realizes the welding of cross points of the longitudinal wires and the transverse wires, and finally realizes the feeding of the metal mesh, the movement and the transverse wires through the matching of the transverse wire feeding mechanism and the wire drawing mechanism, thereby realizing the automatic feeding and the feeding in the automatic welding process of the metal mesh and the continuous operation of a production line.

Drawings

The invention is further illustrated with reference to the following figures and examples:

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic structural diagram of the up-down driving mechanism, the first driving mechanism and the second driving mechanism;

FIG. 3 is a schematic structural view of a longitudinal filament cutting mechanism;

FIG. 4 is a schematic view of the installation of the feed tube;

FIG. 5 is a schematic structural view of a wire feed barrel;

FIG. 6 is a schematic structural view of a net pulling mechanism;

in the figure: the welding machine comprises a machine table 1, a support frame 2, a welding frame 3, a vertical sliding block 4, a welding gun 5, a vertical sliding rail 6, a driving motor 7, a driving wheel 8, a connecting rod 9, a driving rod 10, a hinged support 11, a transverse wire guide plate 12, a limit baffle 13, a support table 14, an installation frame 15, a wire feeding wheel 16, a gear 17, a first driving motor 18, a second driving motor 19, a shearing frame 20, a fixed knife 21, a movable knife 22, a hydraulic cylinder 23, a guide rail 24, a movable frame 25, a sliding block 26, a lead screw 27, a nut 28, a servo motor 29, a vertical cylinder 30, a pulling frame 31, a draw hook 32, a wire feeding barrel 33, a wire feeding plate 34, a cylinder installation frame 35, a transverse cylinder 36, a driving ring 37, a wire guide connecting shaft 38, a deflector rod 39, a rotating ring 40, a wire feeding hole 201, a transverse wire feeding hole 1201, a discharging groove 3301 and a notch 3302.

Detailed Description

As shown in fig. 1, an automatic metal mesh welding device comprises a machine table 1, wherein support frames 2 are arranged on two sides of the machine table 1, vertical sliders 4 are arranged at two ends of each welding frame 3, welding guns 5 are arranged on the welding frames 3, resistance welding is adopted in the embodiment, vertical slide rails 6 matched with the vertical sliders 4 are arranged on the support frames 2, the welding frames 3 are driven up and down through an upper driving mechanism, and the upper driving mechanism can drive up and down through a hydraulic lever or a cylinder arranged on the support frames 2.

In this embodiment, as shown in fig. 2, the up-down driving mechanism includes a driving shaft 41 disposed on the machine platform 1, driving wheels 8 are disposed at two ends of the driving shaft 41, a connecting rod 9 is disposed at an eccentric position on the driving wheel 8, the connecting rod 9 is hinged to a driving rod 10, specifically, an end of the driving rod 10 is mounted on the connecting rod 9 through a bearing, an upper end of the driving rod 10 is connected to the welding frame 3 through a hinged support 11, and the driving shaft 41 is driven by a driving motor 7. Specifically, the driving shaft 41 is provided with a driven gear, and the output end of the driving motor 7 is provided with a driving gear engaged with the driven gear.

The driving motor 7 drives the driving wheel 8 to rotate, drives the connecting rod 9 to rotate in an annular mode, and therefore the driving rod 10 is driven to rotate simultaneously, the welding frame 3 is driven to move up and down, the welding gun 5 is driven to move up and down, and welding is achieved.

The machine table 1 is provided with a transverse wire feeding mechanism, the support frame 2 is provided with a wire feeding hole 201 for a longitudinal wire to pass through, and one side of the wire feeding hole 201 is provided with a longitudinal wire feeding mechanism.

As shown in fig. 4, the transverse wire feeding mechanism includes a transverse wire guide plate 12, a transverse wire feeding hole 1201 for the transverse wire to pass through is formed in the transverse wire guide plate 12, a wire feeding device is arranged on one side of the transverse wire guide plate 12 away from the welding rack 3, the wire feeding device is driven by a first driving mechanism, a limiting baffle 13 is arranged on one side of the transverse wire guide plate 12 close to the welding rack 3, and when the longitudinal wire moves to one side of the limiting baffle 13, the longitudinal wire stops moving, so that the longitudinal wire positioning is realized.

The wire feeding device comprises a mounting frame 15, rotating shafts of wire feeding wheels 16 which are arranged in a matched mode are rotatably mounted on the mounting frame 15, transverse wires penetrate through the space between the two wire feeding wheels 16, gears 17 which are meshed with each other are arranged on the rotating shafts of the wire feeding wheels 16, and the rotating shaft of one wire feeding wheel 16 is connected with a first driving mechanism.

The first driving mechanism comprises a first driving motor 18, the first driving motor 18 is connected with the corresponding rotating shaft of the wire feeding wheel 16 through a belt transmission mechanism, specifically, a driving belt pulley is arranged on an output shaft of the first driving motor 18, a driven belt pulley is arranged on a rotating shaft of one wire feeding wheel 16, and the driving belt pulley and the driven belt pulley are in belt transmission.

In order to realize the synchronous wire feeding of a plurality of transverse wires, as shown in fig. 2, a synchronous rotating shaft may be provided, a synchronous wheel is provided on the synchronous rotating shaft, a belt pulley on the rotating shaft of the wire feeding wheel 16 and the synchronous wheel are driven by a belt, and the first driving motor 18 drives the synchronous rotating shaft.

The longitudinal wire feeding mechanism comprises a supporting table 14, the supporting table 14 is arranged on one side of the supporting frame 2, a wire feeding device is arranged on the supporting table 14, the longitudinal wire is arranged between two wire feeding wheels 16 of the wire feeding device, and the wire feeding device is driven by a second driving mechanism.

The second driving mechanism comprises a second driving motor 19, and the output end of the second driving motor 19 is connected with the rotating shaft of the corresponding wire feeding wheel 16 through a coupler.

The 2 inboard of support frame is equipped with indulges silk and cuts mechanism, as shown in fig. 3, indulges silk and cuts the mechanism and include cutting frame 20, and cutting frame 20 top is equipped with stationary knife 21, and the stationary knife 21 below is equipped with movable knife 22, indulges the silk setting between stationary knife 21 and movable knife 22, and movable knife 22 drives from top to bottom through pneumatic cylinder 23. The hydraulic rod 23 may be replaced with a cylinder.

After the longitudinal wire is fed for a set length, the hydraulic rod 23 is started to move upwards, the movable knife 22 and the fixed knife 21 jointly act to cut the longitudinal wire, and no additional cutting equipment is needed.

Preferably, as shown in fig. 1 and 6, still include the mechanism of drawing a net, horizontal wire feeder and the mechanism of drawing a net set up the both sides at welding jig 3, the mechanism of drawing a net is including setting up guide rail 24 on board 1, remove the frame 25 tip be equipped with guide rail 24 complex slider 26, remove the frame 25 bottom be equipped with lead screw 27 complex screw 28, lead screw 27 passes through servo motor 29 drive, remove the frame 25 upside and be equipped with vertical cylinder 30, vertical cylinder 30's telescopic link top is equipped with the draw frame 31, draw frame 31 is close to one side of welding jig 3 and is equipped with drag hook 32.

The lead screw 27 is driven by the servo motor 29 to rotate, and the moving frame 25 moves along the guide rail 24 under the matching of the lead screw 27 and the nut 28. Stretch out and draw back from top to bottom through vertical cylinder 30, drive and draw frame 31 and reciprocate to be favorable to stretching into the drag hook 32 to indulge silk one side in the welded metal mesh, realize the removal to the metal mesh, be favorable to the welding to the next indulging silk.

Preferably, as shown in fig. 4 and 5, a wire feeding cylinder 33 is provided corresponding to the wire feeding hole 201, a discharging groove 3301 is provided on one side of the wire feeding cylinder 33, a wire guiding plate 34 is provided at the bottom of the discharging groove 3301, a wire pushing mechanism is provided on one side of the wire feeding cylinder 33, the wire pushing mechanism includes a cylinder mounting bracket 35 provided on one side of the wire feeding cylinder 33, a transverse cylinder 36 is provided on the cylinder mounting bracket 35, a driving ring 37 is provided at the telescopic end of the transverse cylinder 36, a connecting shaft 38 is provided on the upper side of the wire feeding cylinder 33, a rotating ring 40 rotatably mounted on the connecting shaft 38 is provided at the upper end of the shift lever 39, the lower end of the shift lever 40 penetrates into the driving ring 37, and the wire feeding cylinder 33 is provided with a notch 3302 corresponding to the shift lever 39.

The transverse air cylinder 36 pushes the shifting rod 30 to rotate along the connecting shaft 38, so that the shifting rod 39 pushes the cut longitudinal wires in the wire feeding cylinder 33 to move along the wire guide plate 34, and the longitudinal wires move to the limit baffle 13 to stop moving, so that the feeding of the longitudinal wires is realized.

A welding method of an automatic metal mesh welding device comprises the following steps:

the method comprises the following steps that firstly, a wire feeding device of a transverse wire feeding mechanism moves along a transverse wire feeding hole 1201 under the driving of a first driving mechanism to feed transverse wires;

secondly, feeding the longitudinal wires along the wire feeding holes 201 by a wire feeding device of the longitudinal wire feeding mechanism under the driving of a second driving mechanism;

step three, after the longitudinal wire is fed, starting the hydraulic cylinder 23, and moving the movable knife 22 upwards to cut the longitudinal wire;

step four, starting the transverse cylinder 36 to drive the shifting rod 39 to rotate, pushing the longitudinal wire out of the wire feeding barrel 33, discharging the longitudinal wire from the discharging groove 3301, moving the longitudinal wire along the wire guide plate 34, and after moving to the position of the limit baffle 13, driving the shifting rod 39 to reset by the transverse cylinder 36;

fifthly, the vertical driving mechanism drives the welding frame 3 to move downwards, the welding gun 5 welds the intersection point of the longitudinal wire and the transverse wire, and the vertical driving mechanism drives the welding frame 3 to move upwards to reset;

Sixthly, the servo motor 29 drives the lead screw 27 to rotate, the movable frame 25 is driven to move along the guide rail 24, the vertical cylinder 30 extends, the drag hook 32 is inserted into one side of the longitudinal wire, the servo motor 29 drives the lead screw 27 to rotate reversely, the movable frame 25 drives the metal net to move forwards, meanwhile, the transverse wire feeding mechanism carries out feeding and feeding at the same distance, and the vertical cylinder 30 resets;

and seventhly, repeating the second step to the sixth step until the metal mesh welding is completed, and then cutting the metal mesh into required sizes.

This metal mesh automatic welder, realize the automatic feed of horizontal silk and indulging the silk, cut the fixed length of mechanism realization indulging the silk through indulging the silk and cut, then realize indulging the automatic feeding of silk through the push wire mechanism, realize horizontal silk and indulge the cross arrangement of silk, then drive welder 5 downstream through upper and lower actuating mechanism, realize the welding to indulging silk and horizontal silk intersect, at last through horizontal silk thread feeding mechanism and the cooperation of netting mechanism, realize metal mesh and removal and horizontal silk feed, thereby realize the automatic weld of metal mesh and the automatic feed material loading among the welding process, realize the continuous operation of production line.

Claims

1. The utility model provides a metal mesh automatic welder, a serial communication port, including board (1), board (1) both sides are equipped with support frame (2), welding frame (3) both ends are equipped with vertical slider (4), be equipped with on welding frame (3) welder (5), be equipped with on support frame (2) with vertical slider (4) complex vertical slide rail (6), welding frame (3) drive from top to bottom through upper and lower actuating mechanism, be equipped with horizontal silk thread feeding mechanism on board (1), be equipped with on support frame (2) and supply to indulge silk hole (201) that the silk passed, it is equipped with indulges silk thread feeding mechanism to send silk hole (201) one side.

2. The automatic welding device of metal mesh according to claim 1, characterized in that the up-down driving mechanism comprises a driving shaft (41) arranged on the machine table (1), driving wheels (8) are arranged at two ends of the driving shaft (41), a connecting rod (9) is arranged at an eccentric position on the driving wheels (8), the connecting rod (9) is hinged with a driving rod (10), the upper end of the driving rod (10) is connected with the welding frame (3) through a hinged support (11), and the driving shaft (41) is driven by a driving motor (7).

3. The automatic metal mesh welding device according to claim 1, wherein the transverse wire feeding mechanism comprises a transverse wire guide plate (12), a transverse wire feeding hole (1201) for a transverse wire to penetrate out is formed in the transverse wire guide plate (12), a wire feeding device is arranged on one side, away from the welding frame (3), of the transverse wire guide plate (12), the wire feeding device is driven by the first driving mechanism, and a limit baffle (13) is arranged on one side, close to the welding frame (3), of the transverse wire guide plate (12).

4. The automatic welding device for expanded metal according to claim 1, characterized in that, the longitudinal wire feeder comprises a support table (14), a wire feeder is arranged on the support table (14), and the wire feeder is driven by the second driving mechanism.

5. The automatic welding device for metal meshes according to claim 3 or 4, characterized in that, the wire feeder comprises a mounting frame (15), the rotating shafts of the wire feeding wheels (16) arranged in pairs are rotatably mounted on the mounting frame (15), the transverse wires or the longitudinal wires pass through between the two wire feeding wheels (16), the rotating shafts of the wire feeding wheels (16) are provided with gears (17) engaged with each other, and the rotating shaft of one of the wire feeding wheels (16) is connected with the first driving mechanism or the second driving mechanism.

6. An automatic welding device for metal mesh according to claim 5, characterized in that the first driving mechanism comprises a first driving motor (18), the first driving motor (18) is connected with the rotating shaft of the corresponding wire feeding wheel (16) through a belt transmission mechanism; the second driving mechanism comprises a second driving motor (19), and the output end of the second driving motor (19) is connected with the rotating shaft of the corresponding wire feeding wheel (16) through a coupler.

7. The automatic welding device for the metal mesh according to claim 1, characterized in that a longitudinal wire shearing mechanism is arranged on the inner side of the support frame (2), the longitudinal wire shearing mechanism comprises a shearing frame (20), a fixed knife (21) is arranged at the top of the shearing frame (20), a movable knife (22) is arranged below the fixed knife (21), the longitudinal wire is arranged between the fixed knife (21) and the movable knife (22), and the movable knife (22) is driven up and down through a hydraulic cylinder (23).

8. The automatic metal mesh welding device according to claim 1, comprising a mesh pulling mechanism, wherein the transverse wire feeding mechanism and the mesh pulling mechanism are arranged on two sides of the welding frame (3), the mesh pulling mechanism comprises a guide rail (24) arranged on the machine table (1), a sliding block (26) matched with the guide rail (24) is arranged at the end of the moving frame (25), a nut (28) matched with the lead screw (27) is arranged at the bottom of the moving frame (25), the lead screw (27) is driven by a servo motor (29), a vertical cylinder (30) is arranged on the upper side of the moving frame (25), a pulling frame (31) is arranged at the top of a telescopic rod of the vertical cylinder (30), and a pulling hook (32) is arranged on one side, close to the welding frame (3), of the pulling frame (31).

9. The automatic welding device for the metal meshes according to claim 1, wherein a wire feeding cylinder (33) is arranged corresponding to the wire feeding hole (201), a discharge groove (3301) is arranged on one side of the wire feeding cylinder (33), a wire guide plate (34) obliquely arranged is arranged at the bottom of the discharge groove (3301), a wire pushing mechanism is arranged on one side of the wire feeding cylinder (33), the wire pushing mechanism comprises a cylinder mounting frame (35) arranged on one side of the wire feeding cylinder (33), a transverse cylinder (36) is arranged on the cylinder mounting frame (35), a driving ring (37) is arranged at the telescopic end of the transverse cylinder (36), a connecting shaft (38) is arranged on the upper side of the wire feeding cylinder (33), a rotating ring (40) rotatably arranged on the connecting shaft (38) is arranged at the upper end of the shifting rod (39), the lower end of the shifting rod (40) penetrates into the driving ring (37), and a notch (3302) is arranged on the wire feeding cylinder (33) corresponding to the shifting rod (39).

10. A welding method of an automatic metal mesh welding device is characterized by comprising the following steps:

the wire feeding device of the transverse wire feeding mechanism is driven by a first driving mechanism to move along a transverse wire feeding hole (1201) to feed transverse wires;

secondly, feeding the longitudinal wires along a wire feeding hole (201) by a wire feeding device of the longitudinal wire feeding mechanism under the driving of a second driving mechanism;

step three, after the longitudinal wire is fed, starting a hydraulic cylinder (23), enabling a movable knife (22) to move upwards, and cutting the longitudinal wire;

fourthly, starting the transverse cylinder (36) to drive the deflector rod (39) to rotate, pushing the longitudinal wire out of the wire feeding barrel (33), discharging the longitudinal wire from the discharging groove (3301), moving the longitudinal wire along the wire guide plate (34), and driving the deflector rod (39) to reset by the transverse cylinder (36) after moving the longitudinal wire to the position of the limit baffle (13);

fifthly, the upper and lower driving mechanisms drive the welding frame (3) to move downwards to weld the intersection points of the longitudinal wires and the transverse wires, and the upper and lower driving mechanisms drive the welding frame (3) to move upwards to reset;

sixthly, a servo motor (29) drives a lead screw (27) to rotate to drive a moving frame (25) to move along a guide rail (24), a vertical cylinder (30) extends, a draw hook (32) is inserted into one side of a longitudinal wire, the servo motor (29) drives the lead screw (27) to rotate reversely, the moving frame (25) drives a metal net to move forwards, meanwhile, a transverse wire feeding mechanism carries out feeding and feeding at the same distance, and the vertical cylinder (30) resets;