Welding slag purging device of withdrawal and straightening welding machine and withdrawal and straightening welding machine

Abstract

The utility model discloses a welding slag purging device of a withdrawal and straightening welding machine and the withdrawal and straightening welding machine, which are applied to the technical field of equipment control and comprise an upper welding wheel and a lower welding wheel, a welding machine frame; the purging assembly comprises a spray head and a compressed gas supply part, the spray head communicates with the compressed gas supply part, the spray head is installed on the welding machine frame, and the spray head faces the position, close to the upper welding wheel and the lower welding wheel, of the strip steel; the spray head is used for providing compressed gas to the surface of the strip steel; and the controller is used for controlling starting and stopping of the purging assembly according to the running state of the upper welding wheel and the running state of the lower welding wheel, and the controller is connected with the welding wheels and the purging assembly. The welding slag purging device of the withdrawal and straightening welding machine is simple in structure, low in cost, low in failure rate, high in reliability and stable in use process, and can be widely applied to welding slag purging scenes of hidden parts of strip steel lap welding machines.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of equipment control, particularly relate to a kind of welding slag blowing device and straightening and butt welding machine of straightening and butt welding machine. BACKGROUND

[0002] In the production process of strip cold rolling, process setting needs to be welded together with the lap joint welding machine in the straightening and leveling unit at the tail of the last coil and the head of the next coil, to facilitate strip production.

[0003] In related technologies, when welding, if the surface of the welding wheel is dirty or the welding machine current is not consistent, the welding slag scattered at the weld after the strip is welded will remain on the surface of the strip. If it is not cleaned in time, the welding slag scattered on the surface of the strip during production will not only reduce the cleanliness of the surface of the strip and affect the quality and image of the product, but also cause iron powder to accumulate in the rollers, affecting their normal rotation. In severe cases, it can cause the rollers to be stuck and reduce the service life.

[0004] Therefore, how to improve the welding quality of the strip is a technical problem that needs to be solved by technicians in the field at present. UTILITY MODEL CONTENT

[0005] The utility model aims to provide a kind of welding slag blowing device and straightening and butt welding machine of straightening and butt welding machine, for synchronously removing the welding slag on the surface of the strip, improve the surface cleanliness of the strip, guarantee the welding quality of the strip.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0007] A kind of welding slag blowing device of straightening and butt welding machine, comprising:

[0008] Upper welding wheel and lower welding wheel for welding the lap joint of adjacent two strips, the strip is located between the upper welding wheel and the lower welding wheel, and the strip can move under the rotation of the upper welding wheel and the lower welding wheel;

[0009] Welding machine frame for mounting the upper welding wheel and the lower welding wheel;

[0010] Blowing assembly, the blowing assembly includes spray head and compressed gas supply component, the spray head is communicated with the compressed gas supply component, the spray head is installed on the welding machine frame, and the spray head is towards the strip on the upper welding wheel and the lower welding wheel position, the spray head is used to provide compressed gas to the surface of the strip;

[0011] Controller for starting and stopping the blowing assembly according to the operation state of the upper welding wheel and the lower welding wheel, the controller is connected with the welding wheel and the blowing assembly.

[0012] In another aspect, the blowing assembly comprises a blowing frame, the nozzle is mounted on the blowing frame, the blowing frame is mounted on the welding machine frame, and the blowing frame is located at the back of the upper welding wheel and the lower welding wheel.

[0013] In another aspect, a translation component is further included, the blowing frame is connected with the welding machine frame through the translation component, the translation component is connected with the controller, and the controller is further used to control the translation component to act according to the rotation direction of the upper welding wheel and the lower welding wheel, so as to change the position of the blowing frame.

[0014] In another aspect, a quick release mechanism is further included, the blowing frame is detachably connected with the welding machine frame through the quick release mechanism.

[0015] In another aspect, a slag receiving component for receiving slag is further included, which is mounted on the welding machine frame and located at the bottom of the strip steel.

[0016] In another aspect, the slag receiving component is located on the side of the welding machine frame away from the blowing assembly, and the slag receiving component is detachably connected with the welding machine frame.

[0017] In another aspect, a slide rail and a driving component are further included, the slide rail and the driving component are both mounted on the welding machine frame, the driving end of the driving component is connected with the slag receiving component, and the driving component is used to push the slag receiving component to move on the slide rail, so as to move the slag receiving component from one side of the upper welding wheel and the lower welding wheel to the other side.

[0018] In another aspect, the slide rail is parallel to the extension direction of the lap joint part, the number of the slide rails is at least two, the bottom of the slag receiving component is provided with a sliding groove, and the sliding groove is matched with the slide rail.

[0019] In another aspect, the driving component is a pneumatic cylinder, the cylinder body of the pneumatic cylinder is mounted on the welding machine frame, the piston rod of the pneumatic cylinder is connected with the slag receiving component, and the driving component is connected with the controller.

[0020] A stretch leveling welding machine comprises the slag blowing device of the stretch leveling welding machine.

[0021] The welding slag blowing device of the tension leveling welding machine provided by the utility model, comprising: an upper welding wheel and a lower welding wheel, used for welding the lap joint part of two adjacent strip steels, the strip steel is located between the upper welding wheel and the lower welding wheel, and the strip steel can move under the rotation of the upper welding wheel and the lower welding wheel; a welding machine frame, used for mounting the upper welding wheel and the lower welding wheel; a blowing assembly, the blowing assembly comprises a spray head and a compressed gas supply component, the spray head is communicated with the compressed gas supply component, the spray head is mounted on the welding machine frame, and the spray head faces the position close to the upper welding wheel and the lower welding wheel on the strip steel, and the spray head is used for providing compressed gas to the surface of the strip steel; a controller, used for controlling the start and stop of the blowing assembly according to the operation state of the upper welding wheel and the lower welding wheel, and the controller is connected with the welding wheel and the blowing assembly. The welding slag blowing device of the tension leveling welding machine provided by the utility model, by installing the blowing assembly on the welding machine frame, the compressed gas supply component in the blowing assembly is used for providing compressed gas to the spray head, then the surface welding slag at the weld of the strip steel after cold rolling is removed, the blowing assembly and the upper welding wheel and the lower welding wheel are started synchronously, the blowing of the welding slag can be kept in the whole welding process, the surface finish of the strip steel is guaranteed, and the influence of the welding slag on the upper welding wheel and the lower welding wheel is reduced; the welding slag blowing device of the tension leveling welding machine has the advantages of simple structure, low cost, low failure rate, high reliability, stable use process, and can be widely applied to the welding slag blowing scene of the hidden part of various strip steel lap welding machines, and can be widely applied to the rolling system in the cold rolling, hot rolling and other related fields.

[0022] The tension leveling welding machine provided by the application is provided with the welding slag blowing device of the tension leveling welding machine, and the welding slag blowing device of the tension leveling welding machine has the technical effects described above, so that the tension leveling welding machine provided with the welding slag blowing device of the tension leveling welding machine should also have corresponding technical effects. BRIEF DESCRIPTION OF DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the utility model or the related technical solutions, the drawings needed to be used in the embodiment or related technical solution description will be briefly introduced below, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without creating labor.

[0024] Fig. 1 It is a structural schematic view of a specific embodiment of the welding slag blowing device of the tension leveling welding machine provided by the utility model;

[0025] Fig. 2 It is a structural schematic view of the translation component in the welding slag blowing device of the tension leveling welding machine provided by the utility model;

[0026] Fig. 3 A structure diagram of a slag receiving component in the welding slag blowing device of the drawing straightening and welding machine is provided by the utility model.

[0027] Reference signs:

[0028] Upper welding wheel 1; lower welding wheel 2; strip steel 3; welding machine frame 4; blowing assembly 5; spray head 5-1; compressed gas supply component 5-2; blowing frame 5-3; translation component 6; slag receiving component 7; slide rail 7-1; driving component 7-2. DETAILED DESCRIPTION

[0029] The core of the utility model is to provide a kind of welding slag blowing device and drawing straightening and welding machine of drawing straightening and welding machine, can avoid the influence of welding slag to strip steel and roller, improve the yield of strip steel, improve the service life of roller.

[0030] In order to make the personnel in the technical field better understand the utility model scheme, the utility model is further explained in detail below in conjunction with the drawings and specific embodiments.

[0031] Please refer to Figs. 1 to 3 As shown in the figure, Fig. 1 A structure diagram of a slag receiving component in the welding slag blowing device of the drawing straightening and welding machine is provided by the utility model. Fig. 2 A structure diagram of a translation component in the welding slag blowing device of the drawing straightening and welding machine is provided by the utility model. Fig. 3 A structure diagram of a slag receiving component in the welding slag blowing device of the drawing straightening and welding machine is provided by the utility model.

[0032] In this embodiment, the welding slag blowing device of drawing straightening and welding machine includes:

[0033] Upper welding wheel 1 and lower welding wheel 2 are used to weld the lap joint of two adjacent strip steels 3, and the strip steel 3 is located between the upper welding wheel 1 and the lower welding wheel 2, and the strip steel 3 can move under the rotation of the upper welding wheel 1 and the lower welding wheel 2;

[0034] Welding machine frame 4 is used to install upper welding wheel 1 and lower welding wheel 2;

[0035] Blowing assembly 5, blowing assembly 5 includes spray head 5-1 and compressed gas supply component 5-2, spray head 5-1 is communicated with compressed gas supply component 5-2, spray head 5-1 is installed on welding machine frame 4, and spray head 5-1 is towards the position close to upper welding wheel 1 and lower welding wheel 2 on strip steel 3, and spray head 5-1 is used to provide compressed gas to the surface of strip steel 3;

[0036] Controller is used to control the start-stop of blowing assembly 5 according to the running state of upper welding wheel 1 and lower welding wheel 2, and the controller is connected with welding wheel and blowing assembly 5.

[0037] Specifically, when two coils of strip steel 3 need to be welded, the edges of the two coils of strip steel 3 are overlapped to form an overlap, the upper welding wheel 1 and the lower welding wheel 2 are used as two poles respectively, the upper welding wheel 1 and the lower welding wheel 2 have a gap therebetween for the overlap of the strip steel 3 to be placed in, the rotation of the upper welding wheel 1 and the lower welding wheel 2 drives the movement of the overlap of the two strip steels 3, and the overlap is welded and fixed at the same time to form a weld.

[0038] The welding slag blowing device of the stretch leveling and welding machine blows away the surface welding slag of the cold-rolled strip steel 3 by providing compressed gas for the spray head 5-1 through the compressed gas supply part 5-2 in the blowing assembly 5, and the blowing assembly 5 is started synchronously with the upper welding wheel 1 and the lower welding wheel 2, so that the blowing of the welding slag can be maintained during the whole welding process, the surface smoothness of the strip steel 3 is ensured, and the influence of the welding slag on the upper welding wheel 1 and the lower welding wheel 2 is reduced. The welding slag blowing device of the stretch leveling and welding machine has simple structure, low cost, low failure rate, high reliability, stable use process, and can be widely applied to the welding slag blowing scenes of hidden parts of various strip steel 3 overlap welding machines, and can be widely applied to the rolling system in the cold rolling, hot rolling and other related fields.

[0039] In some embodiments, the blowing assembly 5 includes a blowing frame 5-3, which can be formed by welding a plurality of metal rods. The blowing frame 5-3 is used to support the spray head 5-1. In order to facilitate adjustment and improve the scope of application, the spray head 5-1 is movably installed on the blowing frame 5-3, that is, the spray angle of the spray head 5-1 is adjustable, which can be adjusted by electricity or manually. Further, the spray head 5-1 is detachably connected to the blowing frame 5-3, which facilitates replacement and maintenance of the spray head 5-1. The blowing frame 5-3 is installed on the welding machine frame 4, and the blowing frame 5-3 is located at the back of the upper welding wheel 1 and the lower welding wheel 2. The back of the upper welding wheel 1 and the lower welding wheel 2 refers to the side of the upper welding wheel 1 and the lower welding wheel 2 facing away from the moving direction of the strip steel 3, that is, when the strip steel 3 moves towards the first direction, the blowing frame 5-3 is located at the side of the upper welding wheel 1 and the lower welding wheel 2 facing away from the first direction.

[0040] In some embodiments, the translation component 6 is further included, the blowing frame 5-3 is connected with the welding machine frame 4 through the translation component 6, the translation component 6 is connected with the controller, and the controller is further used to control the translation component 6 to act according to the rotating direction of the upper welding wheel 1 and the lower welding wheel 2, so as to change the position of the blowing frame 5-3; specifically, the translation component 6 can be a telescopic rod, a sliding rail 7-1, a mechanical hand or the like structure, the translation component 6 is used to drive the blowing frame 5-3 to move, the translation component 6 is installed on the welding machine frame 4, a sliding groove can be arranged on the side wall of the translation component 6, the blowing frame 5-3 is installed in the sliding groove of the translation component 6 through a pulley, when the position of the blowing frame 5-3 needs to be changed, the blowing frame 5-3 can be moved in the sliding groove through the pulley; the corner of the translation component 6 can adopt an arc transition; according to the rotating direction of the upper welding wheel 1 and the lower welding wheel 2, that is, the moving direction of the strip steel 3, the translation component 6 is controlled to move, so as to drive the blowing frame 5-3 to move, and finally the position of the nozzle 5-1 is adjusted, and the purpose is to ensure that the nozzle 5-1 is located at the back of the upper welding wheel 1 and the lower welding wheel 2 when the rotating direction of the upper welding wheel 1 and the lower welding wheel 2 changes, that is, the welding direction of the strip steel 3 changes.

[0041] In some embodiments, the quick release mechanism is further included, the blowing frame 5-3 is detachably connected with the welding machine frame 4 through the quick release mechanism, the quick release mechanism can be a buckle or a bolt or the like structure, so that the blowing frame 5-3 is convenient to disassemble and assemble, and the position of the blowing frame 5-3 is adjusted, so that the blowing effect of the nozzle 5-1 in different scenes is met. The blowing frame 5-3 can be used as a complete module, is uniformly processed, and is installed on the welding machine frame 4 in different scenes, so that the operation is convenient.

[0042] In some embodiments, the slag receiving component 7 for receiving the welding slag is further included, is installed on the welding machine frame 4, and is located at the bottom of the strip steel 3; specifically, the slag receiving component 7 can be a metal box, a structure capable of resisting high temperature and containing the welding slag.

[0043] In some embodiments, the slag receiving component 7 is located on the side of the welding machine frame 4 away from the blowing assembly 5, so that the welding slag can be smoothly dropped into the slag receiving component 7, and the slag receiving component 7 is detachably connected with the welding machine frame 4, so that the slag receiving component 7 is convenient to disassemble and pour the welding slag.

[0044] In some embodiments, a slide rail 7-1 and a driving component 7-2 are further included, both of which are mounted on the welding machine frame 4, and a driving end of the driving component 7-2 is connected with the slag receiving component 7 for pushing the slag receiving component 7 to move on the slide rail 7-1 so as to move the slag receiving component 7 from one side to the other side of the upper welding wheel 1 and the lower welding wheel 2. Specifically, the position of the slag receiving component 7 can be changed conveniently through the arrangement of the slide rail 7-1 and the driving component 7-2, and the position of the slag receiving component 7 is changed according to the arrangement position of the nozzle 5-1, and the slag receiving component 7 should be located on different sides of the upper welding wheel 1 and the lower welding wheel 2 from the nozzle 5-1 so as to ensure that the welding slag blown by the nozzle 5-1 can fall into the slag receiving component 7 on the opposite side.

[0045] In some embodiments, the slide rail 7-1 is parallel to the extension direction of the lap joint portion, so that the slag receiving component 7 can be moved from one side to the other side of the strip steel 3, and the number of the slide rails 7-1 is at least two to ensure the stability of the slag receiving component 7, and the bottom of the slag receiving component 7 is provided with a sliding groove which is matched with the slide rail 7-1 to ensure that the slag receiving component 7 can move smoothly.

[0046] In some embodiments, the driving component 7-2 is a pneumatic cylinder, the cylinder body of which is mounted on the welding machine frame 4, and the piston rod of the pneumatic cylinder is connected with the slag receiving component 7, and the driving component 7-2 is connected with the controller, so that the pneumatic cylinder can be controlled conveniently to push the slag receiving component 7. Further, the slag receiving component 7 should be at least partially structured to extend to the outside of the strip steel 3 so as to better carry the welding slag.

[0047] The blowing method of the welding slag blowing device of the above-described tension leveling welding machine comprises the following steps:

[0048] Step S1: obtaining the running state of the upper welding wheel 1 and the lower welding wheel 2, and starting the blowing assembly 5 at the same time when the upper welding wheel 1 and the lower welding wheel 2 start welding;

[0049] Step S2: controlling the compressed gas supply component 5-2 to supply compressed gas to the nozzle 5-1, and controlling the pressure of the nozzle 5-1 to be the target pressure;

[0050] Step S3: closing the blowing assembly 5 at the same time when the upper welding wheel 1 and the lower welding wheel 2 stop welding;

[0051] Step S4: judging the amount of welding slag on the surface of the strip steel 3, and increasing the target pressure when the amount of welding slag on the surface of the strip steel 3 is ≥ the preset amount, and reducing the target pressure when the amount of welding slag on the surface of the strip steel 3 is < the preset amount.

[0052] The welding slag blowing method of the straightening and flattening welding machine can ensure that the assembly timely removes the welding slag, improve the surface cleanliness of the strip steel 3, and purify the operation environment of the strip steel 3 by taking the operation states of the upper welding wheel 1 and the lower welding wheel 2 as the basis for judging whether the blowing assembly 5 is started. Meanwhile, the blowing effect of the blowing assembly 5 is judged by judging the quantity of the welding slag on the surface of the strip steel 3, so as to provide a reference for the pressure of the nozzle 5-1 in the next welding, and ensure that the quantity of the welding slag gradually decreases when the strip steel 3 is continuously welded, and meanwhile, the waste caused by the excessive pressure of the nozzle 5-1 and the influence on the welding process are avoided.

[0053] In some embodiments, the straightening and flattening welding machine welding slag blowing device further comprises a translation component 6 connected with the controller; before starting the blowing assembly 5, the method further comprises the steps of:

[0054] determining the rotation direction of the upper welding wheel 1 and the lower welding wheel 2;

[0055] determining the moving direction of the strip steel 3 according to the rotation direction of the upper welding wheel 1 and the lower welding wheel 2;

[0056] controlling the translation component 6 to move according to the moving direction of the strip steel 3, and the translation component 6 drives the blowing frame 5-3 to move to the back of the upper welding wheel 1 and the lower welding wheel 2.

[0057] Specifically, the translation component 6 is controlled to move according to the rotation direction of the upper welding wheel 1 and the lower welding wheel 2, i.e. the moving direction of the strip steel 3, and the translation component 6 drives the blowing frame 5-3 to move, so as to finally change the position of the nozzle 5-1; the above steps can timely change the position of the nozzle 5-1 when the rotation direction of the upper welding wheel 1 and the lower welding wheel 2 changes, i.e. when the welding direction of the strip steel 3 changes, so as to ensure that the nozzle 5-1 is located at the back of the upper welding wheel 1 and the lower welding wheel 2, and ensure good blowing effect.

[0058] In a specific embodiment, the straightening and flattening welding machine welding slag blowing device comprises an upper welding wheel 1, a lower welding wheel 2, a welding machine frame 4, a blowing assembly 5 and a controller, the overlapping part of two adjacent strip steels 3 is located between the upper welding wheel 1 and the lower welding wheel 2, the strip steel 3 can move under the rotation of the upper welding wheel 1 and the lower welding wheel 2, the welding machine frame 4 is used for mounting the upper welding wheel 1 and the lower welding wheel 2, the blowing assembly 5 comprises a nozzle 5-1, a compressed gas supply component 5-2 and a blowing frame 5-3, the nozzle 5-1 is in communication with the compressed gas supply component 5-2, the nozzle 5-1 is mounted on the welding machine frame 4, and the nozzle 5-1 faces the position close to the upper welding wheel 1 and the lower welding wheel 2 on the strip steel 3, the blowing frame 5-3 is used for supporting the nozzle 5-1, the nozzle 5-1 is used for providing compressed gas to the surface of the strip steel 3, and the nozzle 5-1 is movably mounted on the blowing frame 5-3; the controller is used for controlling the start and stop of the blowing assembly 5 according to the operation states of the upper welding wheel 1 and the lower welding wheel 2, and the controller is connected with the welding wheel and the blowing assembly 5.

[0059] In another specific embodiment, the pull straightening welding machine welding slag blowing device comprises an upper welding wheel 1, a lower welding wheel 2, a welding machine frame 4, a blowing assembly 5, a translation component 6 and a controller, the overlapping part of two adjacent strip steels 3 is located between the upper welding wheel 1 and the lower welding wheel 2, the strip steel 3 can move under the rotation of the upper welding wheel 1 and the lower welding wheel 2, the welding machine frame 4 is used for mounting the upper welding wheel 1 and the lower welding wheel 2, the blowing assembly 5 comprises a spray head 5-1, a compressed gas supply component 5-2 and a blowing frame 5-3, the spray head 5-1 is communicated with the compressed gas supply component 5-2, the spray head 5-1 is mounted on the welding machine frame 4, and the spray head 5-1 faces the position on the strip steel 3 close to the upper welding wheel 1 and the lower welding wheel 2, the blowing frame 5-3 is used for supporting the spray head 5-1, the spray head 5-1 is used for providing compressed gas to the surface of the strip steel 3, and the spray head 5-1 is movably mounted on the blowing frame 5-3; the controller is used for controlling the start and stop of the blowing assembly 5 according to the operation state of the upper welding wheel 1 and the lower welding wheel 2, the controller is connected with the welding wheel and the blowing assembly 5; the blowing frame 5-3 is connected with the welding machine frame 4 through the translation component 6, the translation component 6 is connected with the controller, and the controller is further used for controlling the action of the translation component 6 according to the rotation direction of the upper welding wheel 1 and the lower welding wheel 2, so that the position of the blowing frame 5-3 is changed.

[0060] The pull straightening welding machine welding slag blowing device provided by the utility model, the spray head 5-1 is fixed on the back of the welding wheel, after welding is started, the blowing assembly 5 is automatically opened, and the compressed air blows the welding slag on the surface of the strip steel 3 clean through the spray head 5-1; the controller is connected with the power supply through a PLC program, is interlocked with the operation state of the welding machine set, and controls the start and stop of the blowing assembly 5. After the strip steel 3 is welded and started, the controller is powered on, the blowing assembly 5 is opened, the blowing assembly 5 starts to blow the welding slag on the surface of the strip steel 3, the power supply is turned off when the welding machine is stopped, the blowing assembly 5 stops blowing, and the welding slag can be collected and cleaned.

[0061] In addition to the pull straightening welding machine welding slag blowing device, a pull straightening welding machine is also provided, and the other structures of the pull straightening welding machine can refer to the related art.

[0062] The pull straightening welding machine welding slag blowing device and the pull straightening welding machine provided by the utility model are described in detail. The principle and implementation mode of the utility model are described by applying specific examples in the paper, and the description of the above examples is only used to help understand the method and core idea of the utility model. It should be pointed out that, for ordinary skilled persons in the technical field, the utility model can be improved and modified in many ways without departing from the principle of the utility model, and these improvements and modifications also fall within the protection scope of the utility model.

Claims

1. A welding slag blowing device for a draw leveler welding machine, characterized in that, The utility model relates to a welding machine frame (4) for mounting the upper welding wheel (1) and the lower welding wheel (2), a blowing assembly (5) comprising a spray head (5-1) and a compressed gas supply part (5-2), the spray head (5-1) is communicated with the compressed gas supply part (5-2), the spray head (5-1) is installed on the welding machine frame (4), and the spray head (5-1) is towards the position of the upper welding wheel (1) and the lower welding wheel (2) on the strip steel (3) close, the spray head (5-1) is used to provide compressed gas to the surface of the strip steel (3), a controller is used to control the blowing assembly (5) start-stop according to the operation state of the upper welding wheel (1) and the lower welding wheel (2), and the controller is connected with the welding wheel and the blowing assembly (5). The blowing assembly (5) comprises a blowing frame (5-3), the spray head (5-1) is installed on the blowing frame (5-3), the blowing frame (5-3) is installed on the welding machine frame (4), and the blowing frame (5-3) is located at the back of the upper welding wheel (1) and the lower welding wheel (2). Further comprising a translation part (6), the blowing frame (5-3) and the welding machine frame (4) are connected through the translation part (6), the translation part (6) is connected with the controller, and the controller is further used to control the translation part (6) to act according to the rotating direction of the upper welding wheel (1) and the lower welding wheel (2) to change the position of the blowing frame (5-3). Further comprising a quick release mechanism, the blowing frame (5-3) and the welding machine frame (4) are detachably connected through the quick release mechanism. Further comprising a slag receiving part (7) for carrying welding slag, which is installed on the welding machine frame (4), and the slag receiving part (7) is located at the bottom of the strip steel (3).

2. The slag purging device of a puller straightener welding machine according to claim 1, characterized in that, The slag receiving part (7) is located on the side of the welding machine frame (4) away from the blowing assembly (5), and the slag receiving part (7) is detachably connected with the welding machine frame (4).

3. The slag purging device of a puller straightener welding machine according to claim 2, characterized in that, Further comprising a slide rail (7-1) and a driving part (7-2), both of which are installed on the welding machine frame (4), the driving end of the driving part (7-2) is connected with the slag receiving part (7) for pushing the slag receiving part (7) to move on the slide rail (7-1) so that the slag receiving part (7) moves from one side of the upper welding wheel (1) and the lower welding wheel (2) to the other side.

4. The slag purging device of a puller straightener welding machine according to claim 2, characterized in that, The slide rail (7-1) is parallel to the extension direction of the lap joint, the number of the slide rail (7-1) is at least two, and the bottom of the slag receiving part (7) is provided with a sliding groove matched with the slide rail (7-1).

5. The slag purging device of a tension levelling welding machine according to any one of claims 1 to 4, characterized in that ​ 6. The slag purging device of a puller straightener welding machine according to claim 5, characterized in that, ​ 7. The slag purging device of a puller straightener welding machine according to claim 6, characterized in that, ​ 8. The slag purging device of a puller straightener welding machine according to claim 7, characterized in that, ​ 9. The slag purging device of a puller straightener welding machine according to claim 7, characterized in that, The driving component (7-2) is a cylinder, a cylinder body of the cylinder is installed on the welding machine frame (4), a piston rod of the cylinder is connected with the slag receiving component (7), and the driving component (7-2) is connected with the controller.

10. A tension levelling welding machine comprising a tension levelling welding machine slag blowing device, characterised in that, The slag blowing device of the draw-straightening welding machine is the draw-straightening welding machine slag blowing device according to any one of claims 1 to 9.

Images