Steel belt plastic coating on-line welding device

Abstract

The technical scheme of the utility model provides an on-line welding device for plastic coating of a steel belt. The on-line welding device comprises a fixed seat, a sliding seat, a cutting mechanism, a polishing and welding mechanism and a guide rail, the sliding seat is arranged on one side of the fixed seat, a dividing notch is formed between the sliding seat and the fixed seat at an interval, the sliding seat closes the dividing notch in a sliding mode, and the fixed seat and the sliding seat are each provided with a clamping mechanism used for clamping a steel belt; and a liftable cutting knife is arranged on the cutting mechanism, and the shape of the cutting knife is matched with that of the cutting opening. According to the utility model, the fixed seat and the sliding seat form a new platform for cutting, butting, welding and polishing a steel belt to be used on a machine and an originally used steel belt, and a plurality of stations are intensively distributed at the cutting openings on the platform, so that the cutting mechanism and the polishing and welding mechanism can be conveniently switched in the longitudinal direction; the cutting, welding and polishing procedures are quickly linked, the operation time consumption is reduced, the efficiency is improved, and the supply of the steel belt coated with the plastic is conveniently linked.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic-coated steel strips, in particular to an online welding device for plastic-coated steel strips. Background Art

[0002] During the production of steel strip tube winding, each roll of steel strip must be coated with a layer of plastic protective film of the same type as the product to prevent oxidation corrosion of the steel strip. Steel strips are purchased in rolls, and the length of each roll is between 500M-1000M. After each roll is coated with plastic, the coating machine needs to be stopped to thread the steel strip, and then restarted, which wastes both materials and time.

[0003] To solve the above problems, a Chinese utility model patent, with the authorization announcement number CN218426819U, is a connecting device for steel strip reel change, which includes a cutting device and a welding device arranged in sequence along the advancing direction of the steel strip, and a cutting grinding device is also arranged between the cutting device and the welding device. The steel strips are connected by cutting, grinding and welding to avoid the shutdown of the plastic coating machine.

[0004] The above-mentioned prior art also has the following disadvantages: in order to avoid downtime and continuously carry out plastic coating, welding needs to be performed at a faster welding speed. In the above technology, cutting, grinding and welding are divided into three workstations arranged in sequence. When the workstations are switched, cutting, grinding and welding need to be re-clamped and re-positioned, which can easily lead to a long process and low efficiency, making it difficult to achieve the purpose of fast welding. Utility Model Content

[0005] In view of this, it is necessary to provide an online welding device for plastic-coated steel strips to solve the technical problems in the prior art that cutting, grinding and welding require re-clamping and positioning when switching workstations, which is time-consuming and inefficient.

[0006] In order to achieve the above technical purpose, the technical solution of the utility model provides a steel strip plastic coating online welding device, comprising:

[0007] Fixed seat;

[0008] A sliding seat, the sliding seat is arranged on one side of the fixed seat, and is spaced apart from the fixed seat to form a slit, and the sliding seat can slide to close the slit, and a clamping mechanism is respectively provided on the fixed seat and the sliding seat for clamping the steel strip;

[0009] A cutting mechanism, on which a lifting cutting knife is arranged, and the cutting knife matches the shape of the dividing incision;

[0010] A grinding and welding mechanism, on which a grinder and a welding head that can be raised and lowered separately are provided for grinding and welding; and

[0011] The guide rail is provided on which the cutting mechanism and the grinding and welding mechanism are both slidably connected. The guide rail is arranged on the fixing seat and is slidably guided along the length direction of the incision.

[0012] Furthermore, the cutting mechanism includes a reciprocating member and a lifting member, the lifting member is arranged at the telescopic end of the reciprocating member, the cutting knife is arranged at the telescopic end of the lifting member, and grinding surfaces are provided on both sides of the cutting knife. The reciprocating member is used to drive the cutting knife to reciprocate and grind the butt end of the steel strip.

[0013] Furthermore, grinding steps are respectively extended to both sides of the cutting knife for grinding the upper surface of the steel strip.

[0014] Furthermore, the sliding seat includes a telescopic member and a platform body, the telescopic member is connected to the fixed seat, and the platform body is arranged at the telescopic end of the telescopic member to drive the platform body close to the fixed seat to connect the two sections of steel belts.

[0015] Furthermore, the grinding and welding mechanism includes a fixed frame and a spring telescopic cylinder, the fixed frame is slidably connected to the guide rail, the grinder and the welding head are respectively connected to one of the spring telescopic cylinders, and the two spring telescopic cylinders are fixed on the fixed frame for elastically suspending the grinder and the welding head.

[0016] Furthermore, the spring telescopic cylinder includes a cylinder body, a spring and a telescopic rod, the spring is arranged on the inner top wall of the cylinder body, the telescopic rod is arranged at the bottom end of the spring, a strip hole is opened on the outer side of the cylinder body, and a handle passing through the strip hole is arranged on the outer side of the telescopic rod.

[0017] Furthermore, the grinder includes a driving motor and a grinding disc, the driving motor is fixedly connected to the telescopic rod, and the grinding disc is connected to an output shaft of the driving motor.

[0018] Furthermore, both sides of the fixed seat and the sliding seat are provided with ribs.

[0019] Furthermore, the guide rail is square in shape.

[0020] Furthermore, the reciprocating member includes a cylinder push rod and a push-pull rod, the telescopic member is telescopically connected to the cylinder push rod, and the push-pull rod is arranged on the outside of the cylinder push rod.

[0021] Compared with the prior art, the utility model has the following beneficial effects: a platform for cutting, docking, welding and grinding new and old steel strips is formed by a fixed seat and a sliding seat, and multiple workstations are concentrated at the incisions thereon, so the cutting mechanism and the grinding and welding mechanism can be conveniently switched longitudinally, and the cutting, welding and grinding processes can be quickly connected, reducing operation time, improving efficiency, and facilitating the connection of the supply of plastic-coated steel strips. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a three-dimensional structural diagram of the steel strip plastic-coated online welding device in a cutting state according to an embodiment of the utility model;

[0023] Figure 2 It is a three-dimensional structural diagram of the steel strip plastic coating online welding device in a grinding and welding state according to an embodiment of the utility model;

[0024] Figure 3 It is a structural front view of the steel strip plastic coating online welding device according to an embodiment of the utility model;

[0025] Figure 4 It is a top view of the structure of the steel strip plastic coating online welding device according to the embodiment of the utility model;

[0026] Figure 5 It is a three-dimensional exploded view of the spring telescopic cylinder according to the embodiment of the utility model;

[0027] In the figure: 1, fixed seat; 101, cutting edge; 102, retaining edge;

[0028] 2. Sliding seat; 21. Telescopic member; 22. Platform body;

[0029] 3. Clamping mechanism;

[0030] 4. Cutting mechanism; 41. Cutting knife; 42. Reciprocating member; 43. Lifting member; 421. Cylinder push rod; 422. Push-pull rod; 401. Grinding surface; 402. Grinding step;

[0031] 5. grinding and welding mechanism; 51. grinding machine; 52. welding head; 53. fixing frame; 54. spring telescopic cylinder; 511. driving motor; 512. grinding disc; 541. cylinder; 542. spring; 543. telescopic rod; 501. strip hole; 502. handle;

[0032] 6. Guide rail. DETAILED DESCRIPTION

[0033] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings, wherein the accompanying drawings constitute a part of the present application and are used together with the embodiments of the present invention to illustrate the principles of the present invention, but are not used to limit the scope of the present invention.

[0034] like Figure 1-5 As shown, the utility model provides a steel strip plastic coating online welding device, comprising a fixed seat 1, a sliding seat 2, a cutting mechanism 4, a grinding and welding mechanism 5 and a guide rail 6. Figure 1 A slide groove is extended from the fixed seat 1, the telescopic part of the sliding seat 2 is fixed to one side of the slide groove, and the sliding body of the sliding seat 2 is inserted into the slide groove. There is a gap between the main body of the fixed seat 1 and the main body of the sliding seat 2, and the gap is the cutting opening 101. The cutting opening 101 passes through the slide groove downward to allow the remaining steel strip after cutting to fall downward. Specifically, during welding, the tail end of the steel strip in the plastic coating is clamped on the fixed seat 1, and the head end of the new steel strip is clamped on the sliding seat 2, and both sections of the steel strip extend into the slit 101, so that the cutting mechanism 4 can cut downward into the slit 101, and the butt ends of the two sections of the steel strip are simultaneously cut to be flush, and then the slit 101 is closed by sliding the sliding seat 2, so that the ends of the two sections of the steel strip are butt-jointed for welding by the grinding and welding mechanism 5, wherein the cutting mechanism 4 and the grinding and welding mechanism 5 are both distributed in the length direction of the slit 101, forming an angle of ninety degrees with the feeding direction of the steel strip, and can slide along the guide rail 6 to switch the position of the cutting mechanism 4 and the grinding and welding mechanism 5 to be directly above the slit 101.

[0035] Specifically, the sliding seat 2 is arranged on one side of the fixed seat 1, and a dividing cut 101 is formed between the fixed seat 1, and the sliding seat 2 can slide to close the dividing cut 101, and dock with the fixed seat 1 by sliding, and dock the steel belt thereon, and the fixed seat 1 and the sliding seat 2 are respectively provided with a clamping mechanism 3 for clamping the steel belt, wherein the clamping mechanism 3 adopts a hydraulic push rod and a pressure rod, and the hydraulic push rod is supported on the fixed seat 1 or the sliding seat 2 through a mounting frame, and the pressure rod is arranged at the bottom end of the hydraulic push rod, and the pressure rod is pushed down by the hydraulic push rod to position the steel belt, and the position of the fixed seat 1 does not change. Since the sliding seat 2 needs to slide, it will drive the clamping mechanism 3 thereon to move, so that the steel belt is always in a clamped and positioned state during cutting, grinding and welding, and no secondary clamping and positioning is required, which facilitates the connection of the processes and reduces the time consumption of the intermediate links.

[0036] Furthermore, the cutting mechanism 4 is provided with a liftable cutting knife 41, and the cutting knife 41 matches the shape of the split cut 101. During downward cutting, its two sides respectively fit the two side walls of the split cut 101, and during downward cutting, the end of the steel strip is cut to be flush.

[0037] Furthermore, the grinding and welding mechanism 5 is provided with a grinder 51 and a welding head 52 which can be raised and lowered separately for grinding and welding. When welding is required, the welding head 52 is lowered and slid along the guide rail 6 to weld the incision connection. When grinding is required, the grinder 51 is lowered and slid along the guide rail 6 to grind the welding point.

[0038] Furthermore, the cutting mechanism 4 and the grinding and welding mechanism 5 are both slidably connected to the guide rail 6, and the guide rail 6 is arranged on the fixed seat 1, and is slidably guided along the length direction of the cutting 101, so that sliding grinding and welding can be performed directly above the cutting 101, and the weld is ground after welding.

[0039] It can be understood that the two steel strips are first clamped on the fixed seat 1 and the sliding seat 2 respectively by the clamping mechanism 3, and then the cutting knife 41 is lowered to the slit 101 by the cutting mechanism 4 to cut the end of the steel strip to be flush, and then the cutting mechanism 4 is pushed away from just above the slit 101 along the guide rail 6, and then the grinding and welding mechanism 5 is pushed along the guide rail 6 to just above the slit 101. At the same time, the sliding seat 2 is slid to connect the ends of the two sections of steel strips, and then the welding head 52 is lowered and pushed to weld the joints, and then the grinder 51 is lowered and retreated along the guide rail 6 to grind the weld to make it smooth. Multiple workstations are concentrated at the slit 101, which can be easily switched in the longitudinal direction, and cutting, welding and grinding can be quickly connected, which reduces operation time, improves efficiency, and facilitates the connection to the subsequent steel strip coating.

[0040] In this embodiment, in order to grind the end during cutting and improve the subsequent welding quality, the cutting mechanism 4 includes a reciprocating member 42 and a lifting member 43. The lifting member 43 is arranged at the telescopic end of the reciprocating member 42, and the cutting knife 41 is arranged at the telescopic end of the lifting member 43. Grinding surfaces 401 are provided on both sides of the cutting knife 41. The reciprocating member 42 is used to drive the cutting knife 41 to reciprocate and grind the butt end of the steel strip. The lifting member 43 lowers the cutting knife 41, cuts into the dividing cut 101, and cuts the ends of the two sections of the steel strip until they are flush. At this time, the two sides of the cutting knife 41 are attached to the end plane of the steel strip, and continue to move down until the grinding surface 401 contacts the end of the steel strip, and then through the reciprocating member 42, it is extended and retracted in the front and rear directions, thereby driving the grinding surface 401 of the cutting knife 41 to perform reciprocating friction grinding, so that the end of the steel strip is polished flat, thereby improving the subsequent welding quality.

[0041] The lifting member 43 may adopt a hydraulic push rod to perform vertical lifting, and the reciprocating member 42 may adopt a pneumatic push rod to perform forward and backward extension along the incision 101 .

[0042] Furthermore, in order to grind the welded upper surface, grinding steps 402 extend from both sides of the cutting knife 41 for grinding the upper surface of the steel strip. As the cutting knife 41 moves back and forth, the upper surface of the joint between the two sections of the steel strip is ground.

[0043] In this embodiment, in order to dock the new steel belt to be used on the machine with the original steel belt in use, the sliding seat 2 includes a telescopic member 21 and a platform body 22. The telescopic member 21 is connected to the fixed seat 1 through a bracket. In this embodiment, it is mainly connected to a slide groove extending from the fixed seat 1. The platform body 22 is arranged at the telescopic end of the telescopic member 21 and inserted in the slide groove to slide along the slide groove. The telescopic member 21 is used to drive the platform body 22 to slide in the slide groove to approach or move away from the fixed seat 1. When the platform body 22 is attached to the fixed seat 1, the two sections of steel belts are docked. When the platform body 22 is away from the fixed seat 1, a dividing cut 101 is formed between the platform body 22 and the fixed seat 1.

[0044] The telescopic member 21 may be a hydraulic push rod, or a lead screw guide rod pair driven by a stepping motor.

[0045] In this embodiment, in order to facilitate manual grinding and welding operations, the grinding and welding mechanism 5 includes a fixed frame 53 and a spring telescopic cylinder 54. The fixed frame 53 is slidably connected to the guide rail 6. The grinder 51 and the welding head 52 are respectively connected to one of the spring telescopic cylinders 54. The two spring telescopic cylinders 54 are fixed on the fixed frame 53. The two spring telescopic cylinders 54 are arranged front to back and are used to elastically suspend the grinder 51 and the welding head 52. When not in use, the grinder 51 and the welding head 52 are elastically contracted to move the grinder 51 and the welding head 52 away from the cutting position. When grinding or welding, they are pushed down to fit the incision joint for grinding or welding.

[0046] It is understandable that if mechanical drive is required, the spring telescopic cylinder 54 can be replaced by a hydraulic push rod or a cylinder push rod.

[0047] Furthermore, in order to operate manually, the spring telescopic cylinder 54 includes a cylinder body 541, a spring 542 and a telescopic rod 543, the spring 542 is arranged on the inner top wall of the cylinder body 541, the telescopic rod 543 is arranged at the bottom end of the spring 542, the telescopic rod 543 is slidably connected to the inner side of the cylinder body 541, and a strip hole 501 is opened on the outer side of the cylinder body 541, and a handle 502 is arranged on the outer side of the telescopic rod 543 that passes through the strip hole 501, and the handle 502 is for hand-holding.

[0048] It can be understood that during use, the handheld handle 502 can drive the grinding and welding mechanism 5 to move forward and backward along the guide rail 6, and can also press down the welding head 52 or the grinder 51 to make it contact with the weld. Pressing down the handle 502 corresponding to the welding head 52 can perform subsequent welding, and pressing down the handle 502 corresponding to the grinder 51 can perform subsequent grinding.

[0049] Furthermore, the grinder 51 includes a drive motor 511 and a grinding disc 512. The drive motor 511 is fixedly connected to the telescopic rod 543. The grinding disc 512 is connected to the output shaft of the drive motor 511. The drive motor 511 is started to drive the grinding disc 512 to rotate. During downward pressure, the surface can be ground by contacting the weld.

[0050] In this embodiment, in order to prevent the steel belt from being skewed, both sides of the fixed seat 1 and the sliding seat 2 are provided with ribs 102, which are fitted to both sides of the steel belt to limit and guide the steel belt.

[0051] In this embodiment, in order to prevent the cutting mechanism 4 and the grinding and welding mechanism 5 from twisting during sliding, the guide rail 6 is square in shape. Correspondingly, the cutting mechanism 4 and the grinding and welding mechanism 5 are mounted on the guide rail 6 and are brackets with square inner holes.

[0052] The guide rail 6 is fixedly connected to the fixing seat 1 via a bracket.

[0053] It is understandable that the guide rail 6 can also be guided by two cylindrical rods as long as it has a stable guiding effect.

[0054] In this embodiment, in order to perform reciprocating movement, the reciprocating member 42 includes a cylinder push rod 421 and a push-pull rod 422. The telescopic member 21 is telescopically connected to the cylinder push rod 421. The push-pull rod 422 is arranged on the outside of the cylinder push rod 421. The telescopic member 21 and the cutting knife 41 are driven to perform reciprocating movement in the front-back direction by the extension and contraction of the cylinder push rod 421. For positioning, the push-pull rod 422 is held by a worker and positioned at the incision 101.

[0055] It can be understood that the push-pull rod 422 can be held by hand for pushing and changing position, and manual grasping can also have the function of controlling its position. In addition, the cylinder push rod 421 is slidably connected through a bracket mounted on the guide rail 6, and a locking member can also be provided on the bracket to lock the position, such as a bolt that passes through the bracket and abuts against the guide rail 6.

[0056] The specific working process of the utility model is as follows: the tail end of the plastic coated steel strip is placed on the top of the fixing seat 1, and the end portion is extended into the split slit 101. At the same time, the head end of the new steel strip is placed on the platform body 22, and the head end portion is extended into the split slit 101, and the clamping mechanism 3 is used to clamp and position them respectively; the cutting mechanism 4 is pushed to the top of the split slit 101, and the lifting member 43 is started to lower the cutting knife 41 to cut the two sections of steel strip along the split slit 101, and then the reciprocating member 42 drives the grinding surface and the grinding stage on the cutting knife 41 to grind the cut end of the steel strip. After grinding, the platform body 22 is pushed toward the fixed seat 1 by the telescopic member 21 to close the slit 101 and connect the ends of the two sections of steel strips; the grinding and welding mechanism 5 is pushed to the top of the connection point, the handle 502 is held and pressed down, the welding head 52 is pushed down, contacting the gap at the connection point, and welding is carried out by pushing along the guide rail 6. After welding, another handle 502 is held and the grinder 51 is pushed down to contact the weld, and grinding is carried out by pushing along the guide rail 6; finally, the clamping of the clamping mechanism 3 is released, and the plastic-coated steel strip supply can be connected.

[0057] The entire workflow is completed, and the contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0058] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by any technician familiar with the technical field within the technical scope disclosed in the present invention should be included in the protection scope of the present invention.

Claims

1. A steel strip plastic coating online welding device, characterized in that: include: Fixed seat; A sliding seat, the sliding seat is arranged on one side of the fixed seat, and is spaced apart from the fixed seat to form a slit, and the sliding seat can slide to close the slit, and a clamping mechanism is respectively provided on the fixed seat and the sliding seat for clamping the steel strip; A cutting mechanism, on which a lifting cutting knife is arranged, and the cutting knife matches the shape of the dividing incision; A grinding and welding mechanism, on which a grinder and a welding head that can be raised and lowered separately are provided for grinding and welding; and The guide rail is provided on which the cutting mechanism and the grinding and welding mechanism are both slidably connected. The guide rail is arranged on the fixing seat and is slidably guided along the length direction of the incision.

2. The steel strip plastic coating online welding device according to claim 1 is characterized in that: The cutting mechanism includes a reciprocating member and a lifting member, the lifting member is arranged at the telescopic end of the reciprocating member, the cutting knife is arranged at the telescopic end of the lifting member, grinding surfaces are provided on both sides of the cutting knife, and the reciprocating member is used to drive the cutting knife to reciprocate and grind the butt end of the steel strip.

3. The steel strip plastic coating online welding device according to claim 2 is characterized in that: Grinding steps are respectively extended to both sides of the cutting knife for grinding the upper surface of the steel strip.

4. The steel strip plastic coating online welding device according to claim 3 is characterized in that: The sliding seat includes a telescopic member and a platform body, the telescopic member is connected to the fixed seat, and the platform body is arranged at the telescopic end of the telescopic member and is used to drive the platform body to approach the fixed seat to connect the two sections of steel belts.

5. The steel strip plastic coating online welding device according to claim 4 is characterized in that: The grinding and welding mechanism includes a fixed frame and a spring telescopic cylinder. The fixed frame is slidably connected to the guide rail. The grinder and the welding head are respectively connected to one of the spring telescopic cylinders. Two of the spring telescopic cylinders are fixed on the fixed frame for elastically suspending the grinder and the welding head.

6. The plastic-coated steel strip online welding device according to claim 5 is characterized in that: The spring telescopic cylinder comprises a cylinder body, a spring and a telescopic rod, wherein the spring is arranged on the inner top wall of the cylinder body, the telescopic rod is arranged at the bottom end of the spring, a strip hole is opened on the outer side of the cylinder body, and a handle penetrating the strip hole is arranged on the outer side of the telescopic rod.

7. The steel strip plastic coating online welding device according to claim 6 is characterized in that: The grinder comprises a driving motor and a grinding disc. The driving motor is fixedly connected to the telescopic rod, and the grinding disc is connected to an output shaft of the driving motor.

8. The steel strip plastic coating online welding device according to claim 7 is characterized in that: Both sides of the fixed seat and the sliding seat are provided with ribs.

9. The steel strip plastic coating online welding device according to claim 8, characterized in that: The guide rail is in a square shape.

10. The steel strip plastic coating online welding device according to claim 9, characterized in that: The reciprocating member comprises a cylinder push rod and a push-pull rod, the telescopic member is telescopically connected to the cylinder push rod, and the push-pull rod is arranged on the outside of the cylinder push rod.

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