A fully automatic double-station welding steel strip bundling machine and bundling method for steel sections

Abstract

The present invention relates to the technical field of steel strip bundling devices, and discloses a fully automatic double-station welding steel strip bundling machine and a bundling method for section steel, comprising a frame and a bundling channel, wherein a plurality of conveyor rollers are arranged at intervals on the bundling channel, and the conveyor rollers convey the bundled material along the bundling channel; a clamping station is provided between two adjacent conveyor rollers, and a first clamping device and a second clamping device are respectively provided on both sides of the clamping station on the frame, the first clamping device moves horizontally toward the second clamping device, a first steel strip bending device is provided on the first clamping device, the first steel strip bending device is lifted and moved along the first clamping device, and a second steel strip bending device is provided on the second clamping device, the second steel strip bending device is lifted and moved along the second clamping device; the fully automatic double-station welding steel strip bundling machine and the bundling method for section steel provided by the present invention solve the problem of low working efficiency of the existing manual bundling method.

Description

Technical Field

[0001] The present invention relates to the technical field of steel strip bundling devices, and in particular to a fully automatic double-station welding steel strip bundling machine for section steel and a bundling method. Background Art

[0002] Welded steel strapping is mainly used in steel production lines. The thickness of the steel strap used is about 3mm. Currently, the strapping work of steel production lines is mainly done manually. First, the steel strap is cut into a fixed length according to the bundle size, and then the steel strap is manually bent into the outer dimensions of the steel. The folded steel strap is put on the bundle material, and then four manual weldings are performed using an electric welder. The efficiency of the entire strapping work is very low. Summary of the Invention

[0003] The object of the present invention is to provide a fully automatic double-station welding steel strip bundling machine and bundling method for steel sections, so as to solve at least one of the above-mentioned problems existing in the prior art.

[0004] In order to achieve the above object, the present invention adopts the following technical solutions:

[0005] A fully automatic double-station welding steel strapping machine for section steel comprises a frame and a strapping channel, wherein a plurality of conveyor rollers are provided at intervals on the strapping channel, and the conveyor rollers convey the strapping material along the strapping channel; a clamping station is provided between two adjacent conveyor rollers, and a first clamping device and a second clamping device are provided on both sides of the clamping station on the frame, wherein the first clamping device moves horizontally toward the second clamping device, a first steel strap bending device is provided on the first clamping device, and the first steel strap bending device moves up and down along the first clamping device, and a second steel strap bending device is provided on the second clamping device, and the second steel strap bending device moves up and down along the second clamping device;

[0006] The first steel strip bending device is provided with a first fixed guide groove and a first bending device, the second steel strip bending device is provided with a second fixed guide groove and a second bending device, the length directions of the first fixed guide groove and the second fixed guide groove are parallel to the moving direction of the first clamping device, the first bending device includes a first push block, the first push block is located directly below the first fixed guide groove and the moving direction of the first push block is parallel to the length direction of the first fixed guide groove, the second bending device includes a second push block, the second push block is located directly below the second fixed guide groove and the moving direction of the second push block is parallel to the length direction of the second fixed guide groove;

[0007] A movable guide groove is provided between the first fixed guide groove and the second fixed guide groove, and one end of the movable guide groove is rotatably connected to the second clamping device or the frame. When the movable guide groove is in the first working state, the first fixed guide groove, the movable guide groove and the second fixed guide groove are located in the same length direction. When the movable guide groove is in the second working state, the movable guide groove flips downward so that the movable guide groove does not contact the steel belt.

[0008] In this technical solution, since a plurality of conveying rollers are arranged at intervals on the baling channel, the conveying rollers convey the baling material along the baling channel, and the baling material is located in the baling channel, which is convenient for the baling operation. Since the first clamping device moves horizontally along the frame toward the second clamping device, it can clamp both sides of the baling material to fix the baling material. Since a movable guide groove is provided between the first fixed guide groove and the second fixed guide groove, one end of the movable guide groove is rotatably connected to the second clamping device or the frame. When the steel belt needs to be conveyed to the bottom of the baling position, the movable guide groove is in the first working state. The first fixed guide groove, the movable guide groove and the second fixed guide groove are located at the same The length direction can limit the conveying direction of the steel belt and improve the smoothness of the steel belt conveying process. After the steel belt is delivered to its place, the movable guide groove flips downward so that the movable guide groove does not contact the steel belt. A certain space is separated between the first fixed guide groove and the second fixed guide groove. This part of the steel belt is located at the lower end of the bundle and this part of the steel belt does not contact the movable guide groove. The steel belt in this space does not need to be bent. The movable guide groove does not contact the steel belt to avoid the movable guide groove affecting the bending of the steel belt, and at the same time prevents the steel belt from contacting the movable guide groove during the bending process to cause damage to the movable guide groove. Since the first clamping device is provided with a first steel belt bending device, The first steel strip bending device is lifted and moved along the first clamping device, and the second clamping device is provided with a second steel strip bending device. The second steel strip bending device is lifted and moved along the second clamping device, and the steel strip can be bent from the bottom of the bundle upward through the first steel strip bending device and the second steel strip bending device respectively, so that the bent edges of the steel plate can be located on both sides of the bundle; since the first bending device includes a first pushing block, the first pushing block is located directly below the first fixed guide groove and the moving direction of the first pushing block is parallel to the length direction of the first fixed guide groove, the second bending device includes a second pushing block, and the second pushing block The block is located directly below the second fixed guide groove and the moving direction of the second push block is parallel to the length direction of the second fixed guide groove. When the steel belt is bent upward to a certain length beyond the upper end of the bale, the first push block and the second push block both move horizontally toward each other, which can realize the horizontal bending of the steel belt at the upper end of the bale, and a certain length of overlapping edges will be generated at the upper end of the bale. The overlapping edges can then be welded by a spot welding device to ensure the bundling effect. The steel belt bundling of this technical solution does not require manual bending and has a high degree of automation. It can also realize the bundling of steel belts at two workstations of the bale at the same time in the bundling channel, and the bundling efficiency is greatly improved.

[0009] Furthermore, in order to facilitate the installation of the first clamping device and the second clamping device on the frame and ensure the stability of the horizontal movement of the first clamping device, the first clamping device includes a movable positioning seat and a horizontal clamping cylinder, the cylinder body of the horizontal clamping cylinder is installed on the frame, the telescopic rod of the horizontal clamping cylinder is connected to the movable positioning seat, two first slide rails are horizontally provided on the frame, and the movable positioning seat is provided with a first slider that slides with the first slide rail; the second clamping device includes a fixed positioning seat, which is fixedly installed on the frame; a first pressing belt assembly is provided on the movable positioning seat, and a second pressing belt assembly is provided on the fixed positioning seat or the frame, and the first pressing belt assembly and the second pressing belt assembly are used to press the steel belt to the lower end of the bundle. The first pressing belt assembly and the second pressing belt assembly can ensure that the steel belt at the lower end of the bundle can be pressed to the lower end of the bundle, on this basis, so that the first steel belt bending device and the second steel belt bending device can better realize the upward bending of the steel belt.

[0010] Furthermore, in order to better achieve the installation of the first and second belt pressing assemblies and to better achieve the compression of the steel belt, the first belt pressing assembly includes a first belt pressing base, which is fixed to a movable positioning seat, and is provided with a first belt pressing oil cylinder on the first belt pressing base, and the telescopic rod of the first belt pressing oil cylinder is connected to the first belt pressing groove; the second belt pressing assembly includes a second belt pressing base, which is fixed to a fixed positioning seat, and is provided with a second belt pressing oil cylinder on the second belt pressing base, and the telescopic rod of the second belt pressing oil cylinder is connected to the second belt pressing groove. During the steel belt conveying process, the first and second belt pressing grooves can better cooperate with the first fixed guide groove, the movable guide groove, and the second fixed guide groove to guide the conveying direction of the steel belt, thereby ensuring the continuity of the steel belt conveying.

[0011] Furthermore, in order to better realize the first upward bending and the second horizontal bending of the steel strip and to improve the compactness of the structural design, the first steel strip bending device includes a first push belt oil cylinder and a first push belt frame, the cylinder body of the first push belt oil cylinder is installed on a movable positioning seat, the telescopic rod of the first push belt oil cylinder is connected to the first push belt frame, the movable positioning seat is vertically provided with a second slide rail, and the first push belt frame is provided with a second slider that slides in cooperation with the second slide rail;

[0012] The first fixed guide groove is provided at the upper end of the first push-belt frame, the first bending device includes a first bending oil cylinder, the first bending oil cylinder and the first push block are both located between the first fixed guide groove and the first push-belt frame, a first guide member is provided between the first fixed guide groove and the first push-belt frame, and the first bending oil cylinder drives the first push block to move along the first guide member;

[0013] The second steel belt bending device includes a second push belt oil cylinder and a second push belt frame, the cylinder body of the second push belt oil cylinder is installed on the fixed positioning seat, the telescopic rod of the second push belt oil cylinder is connected to the second push belt frame, the fixed positioning seat is vertically provided with a third slide rail, and the second push belt frame is provided with a third slider that slides with the third slide rail;

[0014] The second fixed guide groove is arranged at the upper end of the second push belt frame, the second bending device includes a second bending cylinder, the second bending cylinder and the second push block are both located between the second fixed guide groove and the second push belt frame, and a second guide member is provided between the second fixed guide groove and the second push belt frame, and the second bending cylinder drives the second push block to move along the second guide member.

[0015] Furthermore, in order to be able to measure the width of the bale when the bale is clamped and positioned, a horizontal displacement sensor for detecting the horizontal movement distance of the movable positioning seat is provided on the horizontal clamping cylinder.

[0016] Furthermore, in order to more efficiently realize the welding and fixing of the overlapping edges of the steel strips at the two stations, and at the same time to be able to realize the measurement of the height of the bundle, the frame includes a first frame, a second frame and a third frame which are arranged in sequence, and three conveyor rollers are respectively arranged on the first frame, the second frame and the third frame, the first frame and the second frame are both provided with a first clamping device and a second clamping device, and the second frame is provided with a double-station double-head spot welder, and the double-station double-head spot welder is vertically slidably matched with the second frame;

[0017] The double-station double-head spot welder includes a welding machine lifting cylinder and a welding machine base. The welding machine lifting cylinder is installed on the second frame. The telescopic rod of the welding machine lifting cylinder is connected to the welding machine base. The welding machine base and the second frame are vertically slidably matched. The welding machine lifting cylinder is provided with a vertical displacement sensor for detecting the lifting and moving distance of the welding machine base.

[0018] The double-station double-head spot welder includes a detection device for detecting contact with the upper end of the bundle. The double-station double-head spot welder includes symmetrically arranged double-head spot welders, and the two double-head spot welders respectively weld the overlapping edges of the steel strips on the two clamping stations.

[0019] Furthermore, in order to better adjust the welding position and facilitate the start and reset of the welding action, a lower mounting seat is provided on the welding machine seat, and a transverse slide rail and a transverse cylinder are provided on the lower mounting seat. The transverse slide rail is parallel to the first slide rail, and a transverse movable seat is slidably connected to the transverse slide rail. The transverse cylinder drives the transverse movable seat to move along the transverse slide rail. A longitudinal slide rail and a longitudinal cylinder are provided on the transverse movable seat. The longitudinal slide rail extends toward the direction of the first frame and the third frame and is perpendicular to the transverse slide rail. The longitudinal slide rail is slidably connected to a longitudinal movable seat, and the longitudinal cylinder drives the longitudinal movable seat to move along the longitudinal slide rail. Two welding cylinders are arranged side by side on the longitudinal movable seat, and the telescopic rods of the welding cylinders are respectively provided with upper welding poles. The lower end of the lower mounting seat is provided with a lower driving cylinder and a slide rail, and the slide rail is slidably connected to a sliding member, and a lower pad is provided on the sliding member. The lower driving cylinder drives the sliding member to move along the slide rail, and the moving direction of the lower pad is parallel to the moving direction of the longitudinal slide rail, and the lower pad is located below the two upper welding poles.

[0020] Furthermore, in order to realize the automatic transportation of the steel belt, a steel belt conveyor device is also included, the steel belt conveyor device includes a base, a belt feeding seat and a belt feeding mechanism, the base is provided with a horizontal movable guide rail, the belt feeding seat is provided with a horizontal movable slider which slides with the horizontal movable guide rail, the belt feeding mechanism includes a shell, a motor, a main gear, a driving wheel, a driven wheel, an inlet guide wheel group and a cutting assembly, the main gear, the driving wheel and the driven wheel are all located in the shell and are all rotatably matched with the shell, the motor drives the main gear to rotate, the driving wheel and the driven wheel are both two and symmetrically arranged, the driving wheel is located below the driven wheel, and the two driving wheels are It includes a driving gear and a driving transmission wheel, the driving gears are meshed with the main gear, a belt conveyor channel is formed between the driving transmission wheel and the driven wheel, the inlet guide wheel group is arranged on one side outside the shell, and the cutting assembly is arranged on the other side outside the shell, the steel belt passes through the inlet guide wheel group, the belt conveyor channel and the cutting space of the cutting assembly in sequence, the cutting assembly includes a fixed blade, a movable blade and a shearing cylinder, the fixed blade is fixedly mounted on the shell, the shearing cylinder drives the movable blade to move toward the fixed blade to achieve shearing of the steel belt, and a movable blade guide is provided on the shell, and the movable blade guide is slidably matched with the movable blade;

[0021] A connecting seat is provided in the shell, and the connecting seat and the shell are vertically slidably matched. Two passive wheels are respectively installed at the lower ends of the connecting seat, and an elastic component is provided between the connecting seat and the shell.

[0022] A rack is provided on the base, the length direction of the rack is parallel to the length direction of the horizontal moving guide rail, and a travel motor is provided on the tape feed seat, which drives a travel gear to rotate, and the travel gear is engaged with the rack.

[0023] Furthermore, the elastic component includes a disc spring and a lever, a mounting block is provided at the upper end of the shell, the lever is rotatably connected to the mounting block, a guide rod is provided inside the disc spring, one end of the guide rod extending out of the shell is rotatably connected to one end of the lever, and the end of the guide rod located inside the shell is vertically slidably matched with the connecting seat.

[0024] The present invention also provides a double-station welding steel strip bundling method, which includes the above-mentioned fully automatic double-station welding steel strip bundling machine for section steel, and comprises the following steps:

[0025] S1, the conveyor roller conveys the bundle into the bundling channel;

[0026] S2, the horizontal clamping cylinders on the first frame and the second frame simultaneously drive the corresponding movable positioning seats to move toward the corresponding fixed positioning seats, so that the positioning surfaces of the movable positioning seats and the fixed positioning seats are respectively pressed against the two sides of the bale, and the bale is clamped; the horizontal displacement sensor outputs the horizontal displacement data to obtain the width of the bale;

[0027] S3, the welding machine lifting cylinder drives the welding machine base to move downward until the detection device detects a contact signal, the vertical displacement sensor outputs vertical displacement data, and the bundle height is obtained, and the lower driving cylinder drives the lower pad to extend;

[0028] S4. The electronic control system calculates the required steel strap length and the position where the steel strap is cut based on the feedback signals from the horizontal displacement sensor and the vertical displacement sensor; the movable guide groove is flipped upward so that the first fixed guide groove, the movable guide groove, and the second fixed guide groove are located in the same length direction;

[0029] S5, the steel belt conveyor device drives the main gear to rotate through the motor, and conveys the steel belt to the second fixed guide groove, the movable guide groove and the first fixed guide groove in sequence;

[0030] S6. The steel belt conveyor device drives the travel gear and rack through the travel motor to realize the forward and backward movement of the belt feed seat. The belt feed mechanism is installed on the belt feed seat and is guided by the horizontal moving guide rail to stop the belt feed mechanism at the set position and cut the steel belt through the cutting assembly;

[0031] S7, the movable guide groove is turned downward so that the movable guide groove does not contact the steel belt;

[0032] S8, the first pressing belt assembly and the second pressing belt assembly press the steel belt against the lower end of the bale material, the first pushing belt cylinder drives the first pushing belt frame to move upward, and the first fixed guide groove moves upward accordingly, the second pushing belt cylinder drives the second pushing belt frame to move upward, and the second fixed guide groove moves upward accordingly, thereby bending the steel belt to both sides of the bale material, the first pushing belt cylinder and the second pushing belt cylinder are both provided with displacement sensors, and when the end of the steel belt is higher than the set length of the upper end of the bale material, the first pushing belt cylinder and the second pushing belt cylinder stop;

[0033] S9, the first bending oil cylinder drives the first push block to apply pressure to one end of the steel strip beyond the upper end of the bundle to achieve bending of the one end of the steel strip, and the second bending oil cylinder drives the second push block to apply pressure to the other end of the steel strip beyond the upper end of the bundle to achieve bending of the other end of the steel strip, with both ends of the steel strip having an overlap length, and the steel strip is pressed against the lower pad;

[0034] S10, the upper welding pole of the double-head spot welding machine is first pushed out horizontally under the action of the longitudinal cylinder, and after it is in place, it is welded once under the action of the two welding cylinders. After completion, the two welding cylinders retract;

[0035] S11. The horizontal moving seat moves left and right by a set distance under the action of the horizontal cylinder, repeats the welding action, performs the second welding, resets after completing the welding, completes one bundling action, and waits for the next bundling instruction.

[0036] The beneficial effects of the present invention are as follows: in the present technical solution, since a plurality of conveying rollers are arranged at intervals on the baling channel, the conveying rollers convey the baling material along the baling channel, and the baling material is located in the baling channel, which facilitates the baling operation; since the first clamping device moves horizontally along the frame toward the second clamping device, it can clamp both sides of the baling material to achieve the fixation of the baling material; since a movable guide groove is provided between the first fixed guide groove and the second fixed guide groove, one end of the movable guide groove is rotatably connected to the second clamping device or the frame, and when the steel belt needs to be conveyed to the bottom of the baling position, the movable guide groove is in the first working state, and the first fixed guide groove, the movable guide groove and the second The fixed guide grooves are located in the same length direction, which can limit the conveying direction of the steel belt and improve the smoothness of the steel belt conveying process. After the steel belt is conveyed to its place, the movable guide groove flips downward so that the movable guide groove does not contact the steel belt. A certain space is spaced between the first fixed guide groove and the second fixed guide groove. This part of the steel belt is located at the lower end of the bundle and this part of the steel belt does not contact the movable guide groove. The steel belt in this space does not need to be bent. The movable guide groove does not contact the steel belt to avoid the movable guide groove affecting the bending of the steel belt, and at the same time prevents the steel belt from contacting the movable guide groove during the bending process to cause damage to the movable guide groove. Since the first clamping device is provided with a first steel belt The first and second clamping devices are used to move the first and second steel strips, respectively, to move the first and second steel strips, and the second and second clamping devices are used to move the second and second steel strips, respectively, to move the first and second steel strips, respectively, to move the first and second steel strips, respectively, to move the second ... The two pushing blocks are located directly below the second fixed guide groove and the moving direction of the second pushing block is parallel to the length direction of the second fixed guide groove. When the steel belt is bent upward to a certain length beyond the upper end of the bale, the first pushing block and the second pushing block both move horizontally toward each other, which can realize the horizontal bending of the steel belt at the upper end of the bale. A certain length of overlapping edges will be generated at the upper end of the bale, and then the overlapping edges can be welded by a spot welding device to ensure the bundling effect. The steel belt bundling of this technical solution does not require manual bending and has a high degree of automation. It can also realize the bundling of steel belts at two workstations of the bale at the same time in the bundling channel, and the bundling efficiency is greatly improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 It is a structural schematic diagram of the present invention;

[0038] Figure 2 This is a schematic structural diagram of some components of the present invention from a first perspective;

[0039] Figure 3 This is a schematic structural diagram of some components of the present invention from a second perspective;

[0040] Figure 4 This is a schematic diagram of the main structure of some components of the present invention;

[0041] Figure 5 for Figure 4 A partial enlarged view of point A in the middle;

[0042] Figure 6 for Figure 4 A partial enlarged view of point B in the middle;

[0043] Figure 7 This is a schematic structural diagram of some components of the present invention from a third perspective;

[0044] Figure 8 for Figure 7 A partial enlarged view of point C in the middle;

[0045] Figure 9 It is a structural diagram of some components on the second frame of the present invention;

[0046] Figure 10 for Figure 9 A partial enlarged view of point D in the middle;

[0047] Figure 11 This is a structural diagram of the upper part of the second frame of the present invention from another perspective;

[0048] Figure 12 for Figure 11 A partial enlarged view of point E in the middle;

[0049] Figure 13 It is a structural schematic diagram of the steel belt conveyor device in the present invention;

[0050] Figure 14 This is a structural schematic diagram of the steel belt conveyor device in the present invention from another perspective.

[0051] Figure: Conveyor roller 1; roller 1.1; roller motor 1.2; first clamping device 2; second clamping device 3; first steel belt bending device 4; first belt pushing cylinder 4.1; first belt pushing frame 4.2; second steel belt bending device 5; second belt pushing cylinder 5.1; second belt pushing frame 5.2; first fixed guide 6; first bending device 7; first push block 7.1; first push block 7.1; second fixed guide 8; second bending device 9; second push block 9. 1; second bending cylinder 9.2; second guide member 9.3; movable guide groove 10; movable positioning seat 11; horizontal clamping cylinder 12; first slide rail 13; fixed positioning seat 15; first fixed positioning seat 15.1; second fixed positioning seat 15.2; first belt pressing assembly 16; first belt pressing base 16.1; first belt pressing cylinder 16.2; first belt pressing groove 16.3; second belt pressing assembly 17; second belt pressing base 17.1; second belt pressing cylinder 17.2; second belt pressing groove 17.3; second slide rail 18; second slider 19; third slide rail 20; third slider 21; guide wheel 22; first frame 23; second frame 24; third frame 25; double-station double-head spot welder 26; welding machine lifting cylinder 26.1; welding machine base 26.2; double-head spot welder 26.3; lower mounting base 26.4; transverse slide rail 26.5; transverse cylinder 26.6; transverse movable base 26.7; longitudinal slide rail 2 6.8; longitudinal moving seat 26.9; sliding member 30; lower pad 31; base 32; tape feed seat 33; horizontal moving guide rail 34; horizontal moving slider 35; housing 36; motor 37; main gear 38; driving wheel 39; driven wheel 40; inlet guide wheel group 41; cutting assembly 42; tape conveyor channel 43; rack 44; travel gear 45; mounting block 46; disc spring 47; lever 48; guide rod 49; roller 50; travel motor 51. DETAILED DESCRIPTION

[0052] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the present invention will be briefly introduced below in conjunction with the drawings and the description of the embodiments or the prior art. Obviously, the following description of the structure of the drawings is only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative work. It should be noted that the description of these embodiments is used to help understand the present invention, but does not constitute a limitation of the present invention.

[0053] Example 1:

[0054] like Figures 1-14As shown, this embodiment provides a fully automatic double-station welding steel strip baling machine for section steel, including a frame and a baling channel, wherein a plurality of conveying rollers 1 are arranged at intervals on the baling channel, the conveying rollers including a roller 1.1 and a roller motor 1.2, the roller motor 1.2 drives the roller 1.1 to rotate to realize the conveyance of the baling material, and the conveying rollers 1 convey the baling material along the baling channel; a clamping station is provided between two adjacent conveying rollers 1, and a first clamping device 2 and a second clamping device 3 are respectively provided on both sides of the clamping station on the frame, the first clamping device 2 moves horizontally toward the second clamping device 3, a first steel strip bending device 4 is provided on the first clamping device 2, the first steel strip bending device 4 is lifted and lowered along the first clamping device 2, a second steel strip bending device 5 is provided on the second clamping device 3, the second steel strip bending device 5 is lifted and lowered along the second clamping device 3;

[0055] The first steel strip bending device 4 is provided with a first fixed guide groove 6 and a first bending device 7, and the second steel strip bending device 5 is provided with a second fixed guide groove 8 and a second bending device 9. The length directions of the first fixed guide groove 6 and the second fixed guide groove 8 are parallel to the moving direction of the first clamping device 2. The first bending device 7 includes a first push block 7.1, which is located directly below the first fixed guide groove 6 and the moving direction of the first push block 7.1 is parallel to the length direction of the first fixed guide groove 6. The second bending device 9 includes a second push block 9.1, which is located directly below the second fixed guide groove 8 and the moving direction of the second push block 9.1 is parallel to the length direction of the second fixed guide groove 8.

[0056] A movable guide groove 10 is provided between the first fixed guide groove 6 and the second fixed guide groove 8. One end of the movable guide groove 10 is rotatably connected to the second clamping device 3 or the frame. When the movable guide groove 10 is in a first working state, the first fixed guide groove 6, the movable guide groove 10, and the second fixed guide groove 8 are located in the same longitudinal direction. When the movable guide groove 10 is in a second working state, the movable guide groove 10 flips downward so that the movable guide groove 10 does not contact the steel belt. It should be noted that one end of the movable guide groove 10 is adjusted to its different working states by a driving device. The driving device can be a driving motor fixedly mounted on the second clamping device 3 or the frame. One end of the movable guide groove 10 is fixedly connected to the output shaft of the driving motor, and the rotation of the movable guide groove 10 is achieved by the driving motor.

[0057] In this technical solution, since a plurality of conveying rollers 1 are provided at intervals on the baling channel, the conveying rollers 1 convey the baling material along the baling channel, and the baling material is located in the baling channel, which is convenient for the baling operation. Since the first clamping device 2 moves horizontally along the frame toward the second clamping device 3, it can clamp both sides of the baling material to achieve the fixation of the baling material; since a movable guide groove 10 is provided between the first fixed guide groove 6 and the second fixed guide groove 8, one end of the movable guide groove 10 is rotatably connected to the second clamping device 3 or the frame, when the steel belt needs to be conveyed to the bottom of the baling position, the movable guide groove 10 is in the first working state, and the first fixed guide groove 6, the movable guide groove 10 and the second fixed guide groove 8 are located at the same length. The movable guide groove 10 is not in contact with the steel belt, so the movable guide groove 10 is not in contact with the steel belt. A steel strip bending device 4 is lifted and moved along the first clamping device 2, and a second steel strip bending device 5 is provided on the second clamping device 3. The second steel strip bending device 5 is lifted and moved along the second clamping device 3. The steel strip can be bent upward from the bottom of the bundle by the first steel strip bending device 4 and the second steel strip bending device 5, respectively, so that the bent edges of the steel plate can be located on both sides of the bundle; since the first bending device 7 includes a first push block 7.1, the first push block 7.1 is located directly below the first fixed guide groove and the moving direction of the first push block 7.1 is parallel to the length direction of the first fixed guide groove 6, the second bending device 9 includes a second push block 9.1 The second push block 9.1 is located directly below the second fixed guide groove 8 and the moving direction of the second push block 9.1 is parallel to the length direction of the second fixed guide groove 8. When the steel strip is bent upward to a certain length beyond the upper end of the bale, the first push block 7.1 and the second push block 9.1 both move horizontally toward each other, which can realize the horizontal bending of the steel strip at the upper end of the bale, and a certain length of overlapping edges will be generated at the upper end of the bale. The overlapping edges can then be welded by a spot welding device to ensure the bundling effect. The steel strip bundling of this technical solution does not require manual bending, has a high degree of automation, and can simultaneously realize the bundling of steel strips at two workstations of the bale in the bundling channel, greatly improving the bundling efficiency.

[0058] Example 2:

[0059] This embodiment is optimized based on the above embodiment 1.

[0060] In order to facilitate the installation of the first clamping device 2 and the second clamping device 3 on the frame and ensure the stability of the horizontal movement of the first clamping device 2, the first clamping device 2 includes a movable positioning seat 11 and a horizontal clamping cylinder 12. The cylinder body of the horizontal clamping cylinder 12 is installed on the frame, and the telescopic rod of the horizontal clamping cylinder 12 is connected to the movable positioning seat 11. Two first slide rails 13 are horizontally provided on the frame, and the movable positioning seat 11 is provided with a first slider that slides with the first slide rail 13; the second clamping device 3 includes a fixed positioning seat 15, and the fixed positioning seat 15 includes a first fixed positioning seat 15.1 and a second fixed positioning seat The seat 15.2, the first fixed positioning seat 15.1 and the second fixed positioning seat 15.2 are fixedly mounted on the upper end and the side of the frame respectively. In order to achieve a better clamping effect and further improve the smoothness of the bale conveying, a roller 50 is vertically provided on the first fixed positioning seat 15.1. The upper and lower ends of the roller 50 are rotatably connected to the first fixed positioning seat 15.1 through bearings respectively. The movable positioning seat 11 is provided with a first pressing belt assembly 16, and the second fixed positioning seat 15.2 or the frame is provided with a second pressing belt assembly 17. The first pressing belt assembly 16 and the second pressing belt assembly 17 are used to press the steel belt to the lower end of the bale. The first pressing belt assembly 16 and the second pressing belt assembly 17 can ensure that the steel belt at the lower end of the bale can be pressed to the lower end of the bale. On this basis, the first steel belt bending device 4 and the second steel belt bending device 5 can better realize the upward bending of the steel belt.

[0061] Example 3:

[0062] This embodiment is optimized based on the above embodiment 2.

[0063] In order to better realize the installation of the first belt pressing assembly 16 and the second belt pressing assembly 17, and at the same time to better realize the compression of the steel belt, the first belt pressing assembly 16 includes a first belt pressing base 16.1, the first belt pressing base 16.1 is fixed on the movable positioning seat 11, and the first belt pressing base 16.1 is provided with a first belt pressing cylinder 16.2, and the telescopic rod of the first belt pressing cylinder 16.2 is connected to the first belt pressing groove 16.3; the second belt pressing assembly 17 includes a second belt pressing base 17.1, the second belt pressing base 17.1 is fixed on the second fixed positioning seat 15.2, and the second belt pressing base 17.1 is provided with a second belt pressing cylinder 17.2, and the telescopic rod of the second belt pressing cylinder 17.2 is connected to the second belt pressing groove 17.3. During the steel belt conveying process, the first belt pressing groove 16.3 and the second belt pressing groove 17.3 can better cooperate with the first fixed guide groove 6, the movable guide groove 10 and the second fixed guide groove 8 to guide the conveying direction of the steel belt and ensure the continuity of the steel belt conveying.

[0064] Example 4:

[0065] This embodiment is optimized based on the above embodiment 3.

[0066] In order to better achieve the first upward bending and the second horizontal bending of the steel strip and to improve the compactness of the structural design, the first steel strip bending device 4 includes a first push-belt oil cylinder 4.1 and a first push-belt frame 4.2. The cylinder body of the first push-belt oil cylinder 4.1 is installed on a movable positioning seat 11, and the telescopic rod of the first push-belt oil cylinder 4.1 is connected to the first push-belt frame 4.2. A second slide rail 18 is vertically provided on the movable positioning seat 11, and a second slide block 19 is provided on the first push-belt frame 4.2 to slide with the second slide rail 18.

[0067] The first fixed guide groove 6 is provided at the upper end of the first push-belt frame 4.2. The first bending device 7 includes a first bending cylinder 7.2. The first bending cylinder 7.2 and the first push block 7.1 are both located between the first fixed guide groove 6 and the first push-belt frame 4.2. A first guide member 7.3 is provided between the first fixed guide groove 6 and the first push-belt frame 4.2. The first bending cylinder 7.2 drives the first push block 7.1 to move along the first guide member 7.3.

[0068] The second steel belt bending device 5 includes a second push belt cylinder 5.1 and a second push belt frame 5.2. The cylinder body of the second push belt cylinder 5.1 is mounted on a second fixed positioning seat 15.2. The telescopic rod of the second push belt cylinder 5.1 is connected to the second push belt frame 5.2. A third slide rail 20 is vertically provided on the second fixed positioning seat 15.2. The second push belt frame 5.2 is provided with a third slide block 21 that slidably cooperates with the third slide rail 20.

[0069] The second fixed guide groove 8 is arranged at the upper end of the second push-belt frame 5.2. The second bending device 9 includes a second bending cylinder 9.2. The second bending cylinder 9.2 and the second push block 9.1 are both located between the second fixed guide groove 8 and the second push-belt frame 5.2. A second guide member 9.3 is provided between the second fixed guide groove 8 and the second push-belt frame 5.2. The second bending cylinder 9.2 drives the second push block 9.1 to move along the second guide member 9.3.

[0070] It should be noted that in order to improve the smoothness of the first fixed guide groove 6 and the second fixed guide groove 8 during the process of bending the steel belt upward, guide wheels 22 are provided in the first fixed guide groove 6 and the second fixed guide groove 8. During the process of bending the steel belt upward, the guide wheels 22 roll with the steel belt, and the guide wheels 22 can be bearings.

[0071] During the bundling process, the first push-belt cylinder 4.1 drives the first push-belt frame 4.2 to move upward, and the first fixed guide groove 6 and the first bending device 7 also move upward until the first fixed guide groove 6 moves upward to a certain height beyond the upper end of the bundling, that is, the steel belt exceeds the upper end of the bundling by a certain height, and then the first bending cylinder 7.2 is started to drive the first push block 7.1 to horizontally bend the steel belt exceeding the upper end of the bundling; the starting method of the second push-belt cylinder 5.1 and the second bending cylinder 9.2 is adapted to the starting method of the first push-belt cylinder 4.1 and the first bending cylinder 7.2.

[0072] Example 5:

[0073] This embodiment is optimized based on the above-mentioned embodiment 4.

[0074] In order to measure the width of the bale when the bale is clamped and positioned, a horizontal displacement sensor for detecting the horizontal movement distance of the movable positioning seat 11 is provided on the horizontal clamping cylinder 12 .

[0075] Example 6:

[0076] This embodiment is optimized based on the above embodiment 5.

[0077] In order to more efficiently achieve the welding and fixing of the overlapping edges of the steel strips at the two workstations, and at the same time to be able to measure the height of the bundle, the frame includes a first frame 23, a second frame 24 and a third frame 25 which are arranged in sequence, and three conveyor rollers 1 are respectively arranged on the first frame 23, the second frame 24 and the third frame 25. The first frame 23 and the second frame 24 are both provided with a first clamping device 2 and a second clamping device 3. The second frame 24 is provided with a double-station double-head spot welder 26, which is vertically slidably matched with the second frame 24.

[0078] The double-station double-head spot welder 26 includes a welding machine lifting cylinder 26.1 and a welding machine base 26.2. The welding machine lifting cylinder 26.1 is mounted on the second frame 24. The telescopic rod of the welding machine lifting cylinder 26.1 is connected to the welding machine base 26.2. The welding machine base 26.2 slides vertically with the second frame 24. The welding machine lifting cylinder 26.1 is equipped with a vertical displacement sensor for detecting the lifting and lowering distance of the welding machine base 26.2.

[0079] The double-station double-head spot welder 26 includes a detection device for detecting contact with the upper end of the bundle. The double-station double-head spot welder 26 includes symmetrically arranged double-head spot welders 26.3. The two double-head spot welders 26.3 respectively weld the overlapping edges of the steel strips on the two clamping stations.

[0080] Example 7:

[0081] This embodiment is optimized based on the above embodiment 6.

[0082] In order to better adjust the welding position and facilitate the start and reset of the welding action, a lower mounting seat 26.4 is provided on the welding machine seat 26.2, and a transverse slide rail 26.5 and a transverse cylinder 26.6 are provided on the lower mounting seat 26.4. The transverse slide rail 26.5 is parallel to the first slide rail 13, and a transverse moving seat 26.7 is slidably connected to the transverse slide rail 26.5. The transverse cylinder 26.6 drives the transverse moving seat 26.7 to move along the transverse slide rail 26.5. A longitudinal slide rail 26.8 and a longitudinal cylinder (not shown in the figure) are provided on the transverse moving seat 26.7. The longitudinal slide rail 26.8 extends in the direction of the first frame 23 and the third frame 25 and the longitudinal slide rail 26.8 is aligned with the transverse slide rail 26.5 is vertical, and a longitudinal movable seat 26.9 is slidably connected to the longitudinal slide rail 26.8. The longitudinal cylinder drives the longitudinal movable seat 26.9 to move along the longitudinal slide rail 26.8. Two welding cylinders 27 are arranged side by side on the longitudinal movable seat 26.9. The telescopic rods of the welding cylinders 27 are respectively provided with upper welding poles 28. The lower end of the lower mounting seat 26.4 is provided with a lower driving cylinder (not shown in the figure) and a slide rail 29. The slide rail 29 is slidably connected with a sliding member 30. A lower pad 31 is provided on the sliding member 30. The lower driving cylinder drives the sliding member 30 to move along the slide rail 29. The moving direction of the lower pad 31 is parallel to the moving direction of the longitudinal slide rail 26.8, and the lower pad 31 is located below the two upper welding poles 28.

[0083] Example 8:

[0084] This embodiment is optimized based on the above-mentioned embodiment 7.

[0085] In order to realize the automatic conveying of the steel strip, a steel strip conveying device is also included, which includes a base 32, a tape feeding seat 33 and a tape feeding mechanism. A horizontal movable guide rail 34 is provided on the base 32, and a horizontal movable slider 35 that slides with the horizontal movable guide rail 34 is provided on the tape feeding seat 33. The tape feeding mechanism includes a shell 36, a motor 37, a main gear 38, a driving wheel 39, a driven wheel 40, an inlet guide wheel group 41 and a cutting assembly 42. The main gear 38, the driving wheel 39 and the driven wheel 40 are all located in the shell 36 and are all rotated with the shell 36. The motor 37 drives the main gear 38 to rotate. There are two driving wheels 39 and the driven wheel 40 and they are symmetrically arranged. The driving wheel 39 is located below the driven wheel 40. The two driving wheels 39 include an active The gears and the active transmission wheel are all meshed with the main gear 38. A conveyor channel 43 is formed between the active transmission wheel and the driven wheel 40. The inlet guide wheel group 41 is arranged on one side outside the shell 36, and the cutting assembly 42 is arranged on the other side outside the shell 36. The steel belt passes through the inlet guide wheel group 41, the conveyor channel 43 and the cutting space of the cutting assembly 42 in sequence. The cutting assembly 42 includes a fixed blade 42.1, a movable blade 42.2 and a shearing cylinder 42.3. The fixed blade 42.1 is fixedly mounted on the shell 36. The shearing cylinder 42.3 drives the movable blade 42.2 to move toward the fixed blade 42.1 to achieve shearing of the steel belt. A movable blade guide is provided on the shell 36, and the movable blade guide is in sliding cooperation with the movable blade 42.2.

[0086] A connecting seat 43 is provided in the housing 36 , and the connecting seat 43 and the housing 36 are vertically slidably matched. The two passive wheels 40 are respectively mounted on the lower ends of the connecting seat 43 , and an elastic component is provided between the connecting seat 43 and the housing 36 .

[0087] A rack 44 is provided on the base 32 , and the length direction of the rack 44 is parallel to the length direction of the horizontal movable guide rail 34 . A travel motor 51 is provided on the tape feeder 33 , and the travel motor 51 drives the travel gear 45 to rotate, and the travel gear 45 is engaged with the rack 44 .

[0088] The steel strap conveyor, driven by a motor 37 and driven by a main gear 38, sequentially conveys the steel strap to the second fixed guide groove 8, the second belt-holding groove 17.3, the movable guide groove 10, the first belt-holding groove 16.3, and the first fixed guide groove 6. The electronic control system calculates the required strap length and the cut position based on feedback from the horizontal and vertical displacement sensors. When the strap reaches the desired length, the steel strap conveyor, driven by a travel motor 51, drives the travel gear 45 and rack 44, achieving forward and backward movement of the strap feeder 33. The strap feeder mechanism, mounted on the strap feeder 33, is guided by a horizontal guide rail 34, stopping the strap feeder mechanism at the desired position and then cutting the strap using a cutting assembly 42.

[0089] Example 9:

[0090] This embodiment is optimized based on the above-mentioned embodiment 8.

[0091] The elastic component includes a disc spring 47 and a lever 48. A mounting block 46 is provided at the upper end of the shell 36. The lever 48 is rotatably connected to the mounting block 46. A guide rod 49 is provided inside the disc spring 47. One end of the guide rod 49 extends out of the shell 36 and is rotatably connected to one end of the lever 48. The end of the guide rod 49 located inside the shell 36 is vertically slidably matched with the connecting seat 43.

[0092] Example 10:

[0093] The present invention further provides a double-station welded steel strip bundling method, which includes a fully automatic double-station welded steel strip bundling machine for section steel as described in Example 9, comprising the following steps:

[0094] S1, conveyor roller 1 transports the bundle into the bundling channel;

[0095] S2, the horizontal clamping cylinders 12 on the first frame 23 and the second frame 24 simultaneously drive the corresponding movable positioning seat 11 to move toward the corresponding fixed positioning seat 15, so that the positioning surfaces of the movable positioning seat 11 and the positioning surfaces of the fixed positioning seat 15 are respectively pressed against the two sides of the bale, and the bale is clamped; the horizontal displacement sensor outputs the horizontal displacement data to obtain the width of the bale;

[0096] S3, the welding machine lifting cylinder 26.1 drives the welding machine base 26.2 to move downward until the detection device detects a contact signal, the vertical displacement sensor outputs vertical displacement data, and the bundle height is obtained. The lower driving cylinder drives the lower pad 31 to extend;

[0097] S4. The electronic control system calculates the required steel strap length and the position where the steel strap is cut based on the feedback signals from the horizontal displacement sensor and the vertical displacement sensor; the movable guide groove 10 flips upward so that the first fixed guide groove 6, the movable guide groove 10, and the second fixed guide groove 8 are located in the same length direction;

[0098] S5, the steel belt conveying device drives the main gear 38 to rotate through the motor 37, and conveys the steel belt to the second fixed guide groove 8, the movable guide groove 10 and the first fixed guide groove 6 in sequence;

[0099] S6, the steel belt conveyor device drives the traveling gear 45 and the rack 44 through the traveling motor 51 to realize the forward and backward movement of the belt feed seat 33. The belt feed mechanism is installed on the belt feed seat 33 and is guided by the horizontal moving guide rail 34 to stop the belt feed mechanism at the set position and cut the steel belt through the cutting assembly 42;

[0100] S7, the movable guide groove 10 is turned downward so that the movable guide groove 10 is not in contact with the steel belt;

[0101] S8, the first belt pressing assembly 16 and the second belt pressing assembly 17 press the steel belt against the lower end of the bale, the first belt pushing cylinder 4.1 drives the first belt pushing frame 4.2 to move upward, and the first fixed guide groove 6 moves upward accordingly, the second belt pushing cylinder 5.1 drives the second belt pushing frame 5.2 to move upward, and the second fixed guide groove 8 moves upward accordingly, thereby bending the steel belt to both sides of the bale. The first belt pushing cylinder 4.1 and the second belt pushing cylinder 5.1 are both equipped with displacement sensors. When the end of the steel belt is higher than the set length of the upper end of the bale, the first belt pushing cylinder 4.1 and the second belt pushing cylinder 5.1 stop;

[0102] S9, the first bending cylinder 7.2 drives the first push block 7.1 to apply pressure to one end of the steel strip that extends beyond the upper end of the bundle to bend the one end of the steel strip. The second bending cylinder 9.2 drives the second push block 9.1 to apply pressure to the other end of the steel strip that extends beyond the upper end of the bundle to bend the other end of the steel strip. The two ends of the steel strip have an overlap length, and the steel strip is pressed on the lower pad 31.

[0103] S10, the upper welding pole 28 of the double-head spot welder 26.3 is first pushed out horizontally under the action of the longitudinal cylinder, and after it is in place, it is welded once under the action of the two welding cylinders 27. After completion, the two welding cylinders 27 are retracted;

[0104] S11, the horizontal moving seat 26.7 moves left and right by a set distance under the action of the horizontal cylinder 26.6, repeats the welding action, performs the second welding, resets after completing the welding, completes one bundling action, and waits for the next bundling instruction.

[0105] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the scope of protection of the present invention.

Claims

1. A fully automatic double-station welding steel strapping machine for steel sections, characterized by: The machine comprises a frame and a baling channel, wherein a plurality of conveying rollers are provided at intervals on the baling channel, and the conveying rollers convey the baling material along the baling channel; a clamping station is provided between two adjacent conveying rollers, and a first clamping device and a second clamping device are provided on both sides of the clamping station on the frame, wherein the first clamping device moves horizontally toward the second clamping device, a first steel belt bending device is provided on the first clamping device, and the first steel belt bending device moves up and down along the first clamping device, and a second steel belt bending device is provided on the second clamping device, and the second steel belt bending device moves up and down along the second clamping device; The first steel strip bending device is provided with a first fixed guide groove and a first bending device, the second steel strip bending device is provided with a second fixed guide groove and a second bending device, the length directions of the first fixed guide groove and the second fixed guide groove are parallel to the moving direction of the first clamping device, the first bending device includes a first push block, the first push block is located directly below the first fixed guide groove and the moving direction of the first push block is parallel to the length direction of the first fixed guide groove, the second bending device includes a second push block, the second push block is located directly below the second fixed guide groove and the moving direction of the second push block is parallel to the length direction of the second fixed guide groove; A movable guide groove is provided between the first fixed guide groove and the second fixed guide groove, one end of the movable guide groove is rotatably connected to the second clamping device or the frame, when the movable guide groove is in a first working state, the first fixed guide groove, the movable guide groove and the second fixed guide groove are located in the same length direction, when the movable guide groove is in a second working state, the movable guide groove flips downward so that the movable guide groove does not contact the steel belt; Guide wheels are provided in both the first fixed guide groove and the second fixed guide groove.

2. The fully automatic double-station welding steel strapping machine for section steel according to claim 1, characterized in that: The first clamping device includes a movable positioning seat and a horizontal clamping cylinder, the cylinder body of the horizontal clamping cylinder is installed on the frame, the telescopic rod of the horizontal clamping cylinder is connected to the movable positioning seat, two first slide rails are horizontally provided on the frame, and the movable positioning seat is provided with a first slider that slides with the first slide rail; the second clamping device includes a fixed positioning seat, and the fixed positioning seat is fixedly installed on the frame; the movable positioning seat is provided with a first pressing belt assembly, and the fixed positioning seat or the frame is provided with a second pressing belt assembly, and the first pressing belt assembly and the second pressing belt assembly are used to press the steel belt to the lower end of the bundle.

3. The fully automatic double-station welding steel strapping machine for section steel according to claim 2, characterized in that: The first belt pressing assembly includes a first belt pressing base, which is fixed on a movable positioning seat, and a first belt pressing oil cylinder is provided on the first belt pressing base, and a telescopic rod of the first belt pressing oil cylinder is connected to a first belt pressing groove; the second belt pressing assembly includes a second belt pressing base, which is fixed on a fixed positioning seat, and a second belt pressing oil cylinder is provided on the second belt pressing base, and a telescopic rod of the second belt pressing oil cylinder is connected to a second belt pressing groove.

4. The fully automatic double-station welding steel strapping machine for section steel according to claim 3, characterized in that: The first steel belt bending device includes a first push belt oil cylinder and a first push belt frame, the cylinder body of the first push belt oil cylinder is installed on a movable positioning seat, the telescopic rod of the first push belt oil cylinder is connected to the first push belt frame, a second slide rail is vertically provided on the movable positioning seat, and the first push belt frame is provided with a second slide block that slides in cooperation with the second slide rail; The first fixed guide groove is provided at the upper end of the first push-belt frame, the first bending device includes a first bending oil cylinder, the first bending oil cylinder and the first push block are both located between the first fixed guide groove and the first push-belt frame, a first guide member is provided between the first fixed guide groove and the first push-belt frame, and the first bending oil cylinder drives the first push block to move along the first guide member; The second steel belt bending device includes a second push belt oil cylinder and a second push belt frame, the cylinder body of the second push belt oil cylinder is installed on the fixed positioning seat, the telescopic rod of the second push belt oil cylinder is connected to the second push belt frame, the fixed positioning seat is vertically provided with a third slide rail, and the second push belt frame is provided with a third slider that slides with the third slide rail; The second fixed guide groove is arranged at the upper end of the second push belt frame, the second bending device includes a second bending cylinder, the second bending cylinder and the second push block are both located between the second fixed guide groove and the second push belt frame, and a second guide member is provided between the second fixed guide groove and the second push belt frame, and the second bending cylinder drives the second push block to move along the second guide member.

5. The fully automatic double-station welding steel strapping machine for section steel according to claim 4, characterized in that: The horizontal clamping oil cylinder is provided with a horizontal displacement sensor for detecting the horizontal movement distance of the movable positioning seat.

6. The fully automatic double-station welding steel strapping machine for section steel according to claim 5, characterized in that: The frame includes a first frame, a second frame and a third frame which are arranged in sequence, three conveyor rollers are respectively arranged on the first frame, the second frame and the third frame, the first frame and the second frame are both provided with a first clamping device and a second clamping device, the second frame is provided with a double-station double-head spot welder, and the double-station double-head spot welder is vertically slidably matched with the second frame; The double-station double-head spot welder includes a welding machine lifting cylinder and a welding machine base. The welding machine lifting cylinder is installed on the second frame. The telescopic rod of the welding machine lifting cylinder is connected to the welding machine base. The welding machine base and the second frame are vertically slidably matched. The welding machine lifting cylinder is provided with a vertical displacement sensor for detecting the lifting and moving distance of the welding machine base. The double-station double-head spot welder includes a detection device for detecting contact with the upper end of the bundle. The double-station double-head spot welder includes symmetrically arranged double-head spot welders, and the two double-head spot welders respectively weld the overlapping edges of the steel strips on the two clamping stations.

7. The fully automatic double-station welding steel strapping machine for section steel according to claim 6, characterized in that: The axle up and down groove at two ends embeds respectively in two guide rails up and down of being made up of the groove on the attachment piece, and the tooth on the attachment piece is meshed with tooth on upper sprocket wheel, the lower sprocket. The lower sprocket. The lower sprocket. The lower sprocket. The lower sprocket. The lower sprocket. The lower sprocket. The lower sprocket. The lower sprocket.

8. The fully automatic double-station welding steel strapping machine for section steel according to claim 7, characterized in that: The belt conveyor comprises a base, a belt feeding seat and a belt feeding mechanism, the base is provided with a horizontal movable guide rail, the belt feeding seat is provided with a horizontal movable slider which is slidably matched with the horizontal movable guide rail, the belt feeding mechanism comprises a shell, a motor, a main gear, a driving wheel, a driven wheel, an inlet guide wheel group and a cutting assembly, the main gear, the driving wheel and the driven wheel are all located in the shell and are all rotatably matched with the shell, the motor drives the main gear to rotate, the driving wheel and the driven wheel are both two and symmetrically arranged, the driving wheel is located below the driven wheel, and the two driving wheels include a driving gear and an active gear. The transmission wheel, the driving gears are all engaged with the main gear, a conveyor channel is formed between the driving transmission wheel and the driven wheel, the inlet guide wheel group is arranged on one side outside the shell, and the cutting assembly is arranged on the other side outside the shell, and the steel belt passes through the inlet guide wheel group, the conveyor channel and the cutting space of the cutting assembly in sequence, and the cutting assembly includes a fixed blade, a movable blade and a shearing cylinder, the fixed blade is fixedly mounted on the shell, and the shearing cylinder drives the movable blade to move toward the fixed blade to achieve shearing of the steel belt, and a movable blade guide is provided on the shell, and the movable blade guide is slidably matched with the movable blade; A connecting seat is provided in the shell, and the connecting seat and the shell are vertically slidably matched. Two passive wheels are respectively installed at the lower ends of the connecting seat, and an elastic component is provided between the connecting seat and the shell; A rack is provided on the base, the length direction of the rack is parallel to the length direction of the horizontal moving guide rail, and a travel motor is provided on the tape feed seat, which drives a travel gear to rotate, and the travel gear is engaged with the rack.

9. The fully automatic double-station welding steel strapping machine for section steel according to claim 8, characterized in that: The elastic component includes a disc spring and a lever. A mounting block is provided at the upper end of the shell. The lever is rotatably connected to the mounting block. A guide rod is provided inside the disc spring. One end of the guide rod extends out of the shell and is rotatably connected to one end of the lever. The end of the guide rod located inside the shell is vertically slidably matched with the connecting seat.

10. A double-station welding steel strip bundling method, characterized in that: The fully automatic double-station welding steel strip baling machine for section steel as claimed in claim 9 comprises the following steps: S1, the conveyor roller conveys the bundle into the bundling channel; S2, the horizontal clamping cylinders on the first frame and the second frame simultaneously drive the corresponding movable positioning seats to move toward the corresponding fixed positioning seats, so that the positioning surfaces of the movable positioning seats and the fixed positioning seats are respectively pressed against the two sides of the bale, and the bale is clamped; the horizontal displacement sensor outputs the horizontal displacement data to obtain the width of the bale; S3, the welding machine lifting cylinder drives the welding machine base to move downward until the detection device detects a contact signal, the vertical displacement sensor outputs vertical displacement data, and the bundle height is obtained, and the lower driving cylinder drives the lower pad to extend; S4. The electronic control system calculates the required steel strap length and the position where the steel strap is cut based on the feedback signals from the horizontal displacement sensor and the vertical displacement sensor; the movable guide groove is flipped upward so that the first fixed guide groove, the movable guide groove, and the second fixed guide groove are located in the same length direction; S5, the steel belt conveyor device drives the main gear to rotate through the motor, and conveys the steel belt to the second fixed guide groove, the movable guide groove and the first fixed guide groove in sequence; S6. The steel belt conveyor device drives the travel gear and rack through the travel motor to realize the forward and backward movement of the belt feed seat. The belt feed mechanism is installed on the belt feed seat and is guided by the horizontal moving guide rail to stop the belt feed mechanism at the set position and cut the steel belt through the cutting assembly; S7, the movable guide groove is turned downward so that the movable guide groove does not contact the steel belt; S8, the first pressing belt assembly and the second pressing belt assembly press the steel belt against the lower end of the bale material, the first pushing belt cylinder drives the first pushing belt frame to move upward, and the first fixed guide groove moves upward accordingly, the second pushing belt cylinder drives the second pushing belt frame to move upward, and the second fixed guide groove moves upward accordingly, thereby bending the steel belt to both sides of the bale material, the first pushing belt cylinder and the second pushing belt cylinder are both provided with displacement sensors, and when the end of the steel belt is higher than the set length of the upper end of the bale material, the first pushing belt cylinder and the second pushing belt cylinder stop; S9, the first bending oil cylinder drives the first push block to apply pressure to one end of the steel strip beyond the upper end of the bundle to achieve bending of the one end of the steel strip, and the second bending oil cylinder drives the second push block to apply pressure to the other end of the steel strip beyond the upper end of the bundle to achieve bending of the other end of the steel strip, with both ends of the steel strip having an overlap length, and the steel strip is pressed against the lower pad; S10, the upper welding pole of the double-head spot welding machine is first pushed out horizontally under the action of the longitudinal cylinder, and after it is in place, it is welded once under the action of the two welding cylinders. After completion, the two welding cylinders retract; S11. The horizontal moving seat moves left and right by a set distance under the action of the horizontal cylinder, repeats the welding action, performs the second welding, resets after completing the welding, completes one bundling action, and waits for the next bundling instruction.

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