A flying shear cutting wheel mechanism for receiving materials of single-sided welded pipes

Abstract

The present invention provides a flying shear cutting wheel mechanism for receiving and collecting single-sided welded pipes, which comprises a pair of flying shear cutting wheels rotating towards each other and a driving motor for driving the flying shear cutting wheels to rotate. Cutting knives are respectively arranged at relative positions on the two flying shear cutting wheels. As the two flying shear cutting wheels rotate towards each other, the two cutting knives intersect and cut. The intersection cutting position of the two cutting knives is located at the midpoint of the center line connecting the two flying shear cutting wheels. The cutting edge of the cutting knife is a plane. Based on the assembly tolerance of the flying shear cutting wheels, when the front edges or rear edges of the cutting edges of the two cutting knives abut against each other as the two cutting knives pass through the intersection cutting position, the flying shear cutting wheels offset a certain distance under the mutual acting force based on the assembly tolerance. When the two cutting knives reach the intersection cutting position, the cutting edge planes of the two cutting knives abut against or are close to each other. The flying shear cutting wheel mechanism for receiving and collecting single-sided welded pipes has the advantages of better continuous cutting effect, unchanged running direction of the Bundy pipes after cutting, and neat and closed incision shape.

Description

Technical Field

[0001] The present invention relates to a cutting device for a welded pipe receiving device, and more specifically, to a flying shear cutting wheel mechanism for single-sided welded pipe receiving. Background Art

[0002] Currently, manual receiving is adopted for the receiving of pipe-making equipment. The main application methods in enterprises are horizontal spiral receiving and vertical reel receiving. During the receiving process, workers need to manually bend the welded pipe at a certain angle. After coiling at least one circle, the welded pipe can continue to be coiled. The receiving workers need to have a good production rhythm and be able to cooperate well with the production beat.

[0003] When the receiving reaches a certain level, the Bundy pipe needs to be cut. The current methods are as follows: 1. Manual cutting is adopted. Two receiving devices are set up, and each person controls one. The cutting work is manually carried out by the personnel to be determined, and then the cut Bundy pipe is quickly placed into the receiving tray responsible for by oneself for receiving, and the process is alternated in turn; 2. Moving knife cutting is adopted. The cutting knife accelerates briefly to reach a speed approximate to that of the Bundy pipe, and then cuts. This is common in imported foreign equipment. The cost of such equipment is high, and it has no promotional value for small Bundy pipe production plants; 3. Conventional flying shear cutting. The speed of such flying shear equipment is usually relatively slow. During the cutting process, the first section of the subsequent Bundy pipe will be bent and deformed or even lose its function, resulting in a part of the Bundy pipe always being wasted. Such equipment is relatively simple and is the current mainstream application.

[0004] In addition, the third cutting method is not suitable for continuous operation. Its principle is that in conventional flying shear cutting, the blades are not directly opposite to each other. As Figure 1 shown, the blades are misaligned to rub and cut the Bundy pipe. Since it is misaligned, the guiding of the second half of the Bundy pipe will change, and the change angle is relatively large. It is very difficult to add a guiding structure near the flying shear to align it, and it can only be aligned by artificial means, still requiring human participation, and the significance of automated continuous operation is not great.

[0005] Furthermore, during the production process of the Bundy pipe, water is injected into the pipeline. After coiling, there is still a welding process in the next step. The principle of conventional flying shear cutting is to use the misaligned cutting principle of the blades to rub and cut the Bundy pipe. The cut pipe orifice is usually an open structure or a special-shaped structure, and a large amount of water liquid flows out, wetting the pipe orifice. A certain amount of drying operation is required in the next step.

[0006] In order to solve the above existing problems, people have been seeking an ideal technical solution. Summary of the Invention

[0007] The object of the present invention is to address the deficiencies of the prior art and thus provide a flying shear cutting wheel mechanism for collecting single-sided welded pipes, which has a better continuous cutting effect, the direction of the Bundy pipe remains unchanged after cutting, and the incision shape is neat and closed.

[0008] To achieve the above object, the technical solution adopted by the present invention is: a flying shear cutting wheel mechanism for collecting single-sided welded pipes, including a pair of flying shear cutting wheels that rotate towards each other and a driving motor for driving the flying shear cutting wheels to rotate. Cutting knives are respectively arranged at relative positions on the two flying shear cutting wheels. As the two flying shear cutting wheels rotate towards each other, the two cutting knives intersect and cut. The intersection cutting position of the two cutting knives is at the midpoint of the connecting line of the centers of the two flying shear cutting wheels; the edge part of the cutting edge of the cutting knife is a plane. Based on the assembly tolerance of the flying shear cutting wheel, when the front edge or rear edge of the edge parts of the two cutting knives abuts during the intersection cutting position of the two cutting knives, the flying shear cutting wheels offset a certain distance under the mutual acting force based on the assembly tolerance. When the two cutting knives reach the intersection cutting position, the plane of the edge parts of the two cutting knives abuts or is close to each other.

[0009] Based on the above, the flying shear cutting wheel is provided with a cutting knife hole along the radial direction, and the cutting knife is installed in the cutting knife hole. An adjusting bolt is installed on the flying shear cutting wheel along the extending direction and the vertical direction of the cutting knife hole. The adjusting bolt along the extending direction of the cutting knife hole abuts against the end of the cutting knife to adjust the extending length of the cutting knife, and the adjusting bolt along the vertical direction of the cutting knife hole abuts against the side of the cutting knife to tighten the cutting knife.

[0010] Based on the above, both of the two flying shear cutting wheels are gears, and the two gears mesh with each other and are driven by the driving motor.

[0011] Based on the above, it further includes a reset sensor corresponding to the cutting knife, and the reset sensor is installed on the frame.

[0012] Based on the above, the cutting head part of the cutting knife is triangular.

[0013] Based on the above, the material of the cutting knife is cemented carbide.

[0014] The present invention has prominent substantive features and significant progress compared with the prior art. Specifically, the present invention is an improvement based on the flying shear structure, adopting the principle of front extrusion cutting, but there are also differences. Since the cutting edge of the cutting tool is a plane, and the two cutting tools are exactly aligned without misalignment, the cutting edges of the entire cutting tool substantially form a cube structure. Moreover, when the cutting edges are installed, they are corrected by aligning the plane of the cutting edge, and there is almost no gap or only a very small gap between the cutting edges of the two cutting tools. When extruding, after the front edge or the rear edge of the cutting tool touches together, it will push the entire flying shear cutting wheel outwards, causing it to shift a certain displacement. The cutting is achieved by means of the great reset driving force brought about by the shift of the flying shear cutting wheel. Moreover, the contact of the front edge is a line contact, with a small contact area. Supported by the cube structure, the structure is relatively stable and will not break easily. The final formed incision structure will also present a flat sealing structure, avoiding the outflow of internal liquid. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic structural diagram of an existing flying shear cutting wheel mechanism.

[0016] Figure 2 is a schematic structural diagram of the flying shear cutting wheel in the present invention.

[0017] Figure 3 is Figure 2 a partial enlarged view of

[0018] Figure 4 is a schematic structural diagram of the flying shear cutting wheel in the present invention in the application state.

[0019] In the figure: 1. Frame; 2. Flying shear cutting wheel; 4. Cutting tool; 5. Plane; 6. Front edge; 7. Rear edge; 8. Guide wheel set; 9. Angle adjusting device; 10. Receiving tray. DETAILED DESCRIPTION OF THE INVENTION

[0020] The technical solution of the present invention will be further described in detail below through specific embodiments.

[0021] Such as Figure 2 and Figure 3As shown in the figure, a flying shear cutting wheel mechanism for collecting single-sided welded pipes includes a pair of flying shear cutting wheels 2 that rotate towards each other and a driving motor 3 that drives the flying shear cutting wheels 2 to rotate. Cutting knives 4 are respectively arranged at relative positions on the two flying shear cutting wheels 2. As the two flying shear cutting wheels 2 rotate towards each other, the two cutting knives 4 intersect and cut. The intersection cutting position of the two cutting knives 4 is located at the midpoint of the connection line of the two flying shear cutting wheels 2; the edge part of the cutting edge of the cutting knife is a plane 5. Based on the assembly tolerance of the flying shear cutting wheels 2, when the front edges 6 or rear edges 7 of the edge parts of the two cutting knives 4 abut when the two cutting knives 4 pass through the intersection cutting position, the flying shear cutting wheels 2 offset a certain distance under the mutual acting force based on the assembly tolerance. When the two cutting knives 4 reach the intersection cutting position, the plane 5 of the edge parts of the two cutting knives 4 abuts or is close to each other.

[0022] In this patent, the "intersection cutting" mentioned does not mean that the two cross each other, but rather they meet at this position and complete the cutting action of butt-jointing the front edges.

[0023] Based on the above, the flying shear cutting wheels 2 are provided with cutter holes along the radial direction, and the cutting knives are installed in the cutter holes. An adjusting bolt is installed on each of the flying shear cutting wheels along the extending direction and the vertical direction of the cutter hole. The adjusting bolt 2-1 along the extending direction of the cutter hole abuts against the end of the cutting knife to adjust the extending length of the cutting knife, and the adjusting bolt 2-2 along the vertical direction of the cutter hole abuts against the side of the cutting knife to tighten the cutting knife.

[0024] Both of the two flying shear cutting wheels 2 are gears, and the two gears mesh with each other and are driven by the driving motor 3. It further includes a reset sensor corresponding to the cutting knife 4, and the reset sensor is installed on the frame 1.

[0025] The cutter head part of the cutting knife 4 is triangular, and the material of the cutting knife is cemented carbide.

[0026] Application example:

[0027] As Figure 4 shown in the figure, the working principle of the single-sided welded pipe collecting equipment is elaborated. The single-sided welded pipe collecting equipment includes a frame 1, a guide wheel group 8, flying shear cutting wheels 2, an angle adjusting device 9, a collecting disc 10 and a collecting motor. The guide wheel group 8 is arranged in a straight line along the working table surface. Its main function is to provide a traveling track for the welded pipe. The welded pipe walks in a straight line under the clamping of the guide wheel group 8. The guide wheel group 8 is composed of a pair of guide wheels arranged opposite to each other. The gap between a pair of guide wheels is used to clamp the welded pipe.

[0028] The rotation speed of the flying shear cutting wheel can be selected to match the traveling speed of the welded pipe. If it is not easy to adjust, it can be slightly faster than the traveling speed of the welded pipe on the premise of not affecting the continuous traveling of the welded pipe.

[0029] The principle of the cutter cutting is as follows: Since the mass and volume of the flying shear cutting wheel are relatively large, there are certain assembly tolerances during the assembly process. The Bundy tube to be cut is made of aluminum, which has good toughness and certain strength. If a sharp blade is used for cutting, since the force is not applied directly from the front, during the cutting action, the blade is laterally stressed in part of the process, which easily causes the blade of the cutter to break and cannot be used continuously. If only the blade is thickened, it will not be able to cut due to the lack of sharpness of the blade, and it is not easy to align the overly thick blade part. Based on this situation, the flying knife structure in this embodiment is designed.

[0030] The blade part of the cutter is a plane. During installation, through the alignment of this plane, the alignment and centering of the cutter installation can be ensured, and then the flying knife is fixed. Since the flying shear cutting wheel has certain tolerances, the width of the blade surface of the cutter can be set according to the tolerances. When the front edge or the rear edge of the blade plane abuts, the flying shear cutting wheel will move due to the existence of tolerances. When passing through this position again, the flying shear cutting wheel will return to its original position, and the Bundy tube is crushed by the force of the flying shear cutting wheel returning to its original position and the relatively sharp angle formed at the front edge position, forming a relatively complete straight-line incision.

[0031] The angle adjustment device 9 is located between the end of the guide wheel group 8 and the inlet of the receiving tray 10, and is used to turn the welded pipe into the receiving tray 10. Since it does not involve the improvement of this equipment, no further elaboration will be made.

[0032] Working process: This equipment is connected to the pipe making machine and is used when the pipe making machine finishes making the welded pipe and needs to collect the materials. First, the welded pipe is guided into the first group of guide wheels. Under the clamping and rotating action of the elastic wheel, the welded pipe gradually enters the guide wheel group 8 and moves in a straight line along the guide wheel group. When it moves to the angle adjustment device 9, the angle adjustment device 9 is controlled to start, and the Bundy tube is turned into the receiving tray 10. The receiving tray 10 rotates continuously under the drive of the receiving motor, and its speed matches the feeding speed of the welded pipe. The welded pipe is coiled and stacked in the receiving tray 10. When it reaches the required height or weight, the flying shear cutting wheel 2 is controlled to rotate to cut the welded pipe, complete the material collection, take out the welded pipe, and proceed to the next process of material collection.

[0033] During this process, due to the facing relationship between the rear end of the flying shear cutting wheel 2 and the guide wheel group 8, it is necessary to ensure that the direction of the Bundy tube after cutting does not deviate. Using the flying shear technology in the prior art will cause the deviation of the Bundy tube. Adopting this solution can ensure the direction stability of the Bundy tube, enable continuous operation, and moreover, the straight-line sealing at the mouth caused by extrusion can ensure that the liquid does not flow out.

[0034] During the entire working process, only the running states of each device need to be manually controlled.

[0035] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them; although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that it is still possible to modify the specific implementation manners of the present invention or perform equivalent replacements for some technical features; without departing from the spirit of the technical solutions of the present invention, they should all be covered within the scope of the technical solutions claimed by the present invention.

Claims

1. A flying shear cutting wheel mechanism for receiving single-sided welded pipes, Characterized in that: It includes a pair of flying shear cutting wheels that rotate towards each other and a driving motor that drives the flying shear cutting wheels to rotate. Cutting knives are respectively arranged at the relative positions on the two flying shear cutting wheels. As the two flying shear cutting wheels rotate towards each other, the two cutting knives intersect and cut. The intersection cutting position of the two cutting knives is at the midpoint of the connection line of the two flying shear cutting wheels; the edge part of the cutting edge of the cutting knife is a plane. Based on the assembly tolerance of the flying shear cutting wheel, when the two cutting knives pass through the intersection cutting position and the front edges or rear edges of the edge parts of the two cutting knives abut, the flying shear cutting wheels offset a certain distance under the interaction force based on the assembly tolerance. When the two cutting knives reach the intersection cutting position, the plane of the edge part of the two cutting knives abuts or is close to each other.

2. The flying shear cutting wheel mechanism for receiving single-sided welded pipes according to claim 1, Characterized in that: The flying shear cutting wheel is provided with a cutting knife hole along the radial direction, and the cutting knife is installed in the cutting knife hole. An adjusting bolt is installed on the flying shear cutting wheel along the extending direction and the vertical direction of the cutting knife hole. The adjusting bolt along the extending direction of the cutting knife hole abuts against the end of the cutting knife to adjust the extending length of the cutting knife, and the adjusting bolt along the vertical direction of the cutting knife hole abuts against the side of the cutting knife to tighten the cutting knife.

3. The flying shear cutting wheel mechanism for receiving single-sided welded pipes according to claim 1 or 2, Characterized in that: Both of the two flying shear cutting wheels are gears, and the two gears mesh with each other and are driven by the driving motor.

4. The flying shear cutting wheel mechanism for receiving single-sided welded pipes according to claim 3, Characterized in that: It further includes a reset sensor corresponding to the cutting knife, and the reset sensor is installed on the frame.

5. The flying shear cutting wheel mechanism for receiving single-sided welded pipes according to claim 4, Characterized in that: The head part of the cutting knife is triangular.

6. The flying shear cutting wheel mechanism for receiving single-sided welded pipes according to claim 5, Characterized in that: The material of the cutting knife is cemented carbide.

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