Device for extruding and forming rectangular pipe from round pipe

Abstract

The utility model discloses a round tube extrusion forming device for rectangular tubes, which comprises a support base and an extrusion type transformer box, conveying rollers are rotatably connected to the upper part and the lower part of the front end in the extrusion type transformer box respectively, and a plurality of first extrusion rollers and second extrusion rollers are rotatably connected to the rear ends of the conveying rollers in the extrusion type transformer box symmetrically up and down; a plurality of third extrusion rollers and fourth extrusion rollers are rotationally connected to the front and rear sides of the rear ends of the first extrusion roller and the second extrusion roller in the extrusion type transformer box, and a plurality of groups of type transformer rollers are transversely connected to the rear ends of the third extrusion rollers and the fourth extrusion rollers up and down in the extrusion type transformer box. Compared with the prior art, the device has the advantages that round pipes can be stably extruded into rectangular pipes through operations of front-side conveying, middle preliminary extrusion deformation and rear-end extrusion forming, and the requirement for materials is low.

Description

Technical Field

[0001] The utility model relates to a circular tube recycling device, in particular to a device for extruding and forming a rectangular tube from a circular tube. Background Art

[0002] Round tube refers to steel with two ends open and a hollow concentric cross section, with a large ratio of length to circumference. It can be used for pipelines, thermal equipment, mechanical industry, petroleum geological drilling, containers, chemical industry and special purposes.

[0003] In today's situation of overcapacity and frequent construction, round tube production is relatively in excess. If they are directly taken for recycling, it is easy to cause losses. If the round tubes are extruded into rectangular tubes, they can be used and utilized accordingly, and their value will be higher. The modified equipment in the existing technology generally adopts the cold drawing process, but the cold drawing process has high requirements on the material of the round tube, and direct cold drawing is not suitable for ordinary round tubes. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a device for extruding a rectangular tube into a round tube in view of the disadvantage that the cold drawing process in the above background technology has high requirements.

[0005] In order to solve the above technical problems, the technical solution provided by the utility model is as follows: a rectangular tube is extruded from a round tube, comprising a support base, the top of the support base is connected with an extrusion type transformer box, the front end of the extrusion type transformer box is respectively connected with a first rotating shaft and a second rotating shaft for rotation up and down, and a conveying roller is commonly connected with the middle of the first rotating shaft and the middle of the second rotating shaft;

[0006] The extrusion type transformer box is provided with a plurality of first extrusion rollers and second extrusion rollers symmetrically connected to each other in rotation up and down at the rear ends of the first rotating shaft and the second rotating shaft, and the distances between the plurality of first extrusion rollers and the second extrusion rollers are gradually reduced;

[0007] A plurality of third extrusion rollers and a fourth extrusion roller are rotatably connected to the front and rear sides of the rear ends of the first extrusion roller and the second extrusion roller in the extrusion type transformer box, and the distances between the plurality of third extrusion rollers and the fourth extrusion rollers are gradually reduced;

[0008] In the extrusion type change box, multiple groups of third rotating shafts and fourth rotating shafts are horizontally connected at the rear ends of the third extrusion roller and the fourth extrusion roller, and the middle of the same group of the multiple groups of third rotating shafts and fourth rotating shafts is connected with mutually matching type change rollers;

[0009] The extrusion type transmission box is connected on both sides with a first motor and a first gear set transmission box for driving the first and second rotating shafts to rotate, and the extrusion type transmission box is connected on both sides with a third motor and a third gear set transmission box for driving multiple sets of third and fourth rotating shafts to rotate.

[0010] Furthermore, the extrusion type variable box is located between the first extrusion roller and the second extrusion roller and the third extrusion roller and the fourth extrusion roller, and is connected to the first auxiliary conveying roller and the second auxiliary conveying roller for vertical rotation. The second motor and the second gear set transmission box for driving the first auxiliary conveying roller and the second auxiliary conveying roller to rotate are connected to both sides of the extrusion type variable box, which facilitates auxiliary transmission operations between the two extrusion roller groups.

[0011] Furthermore, the first gear set transmission box, the second gear set transmission box and the third gear set transmission box are connected to the outside with a first maintenance door, and the extrusion type transmission box is connected with a plurality of second maintenance doors to facilitate maintenance operations.

[0012] Furthermore, the support base is connected to the front end of the conveying roller and is provided with a support frame, and the support frame is provided with a conveying through hole that matches the conveying roller, so as to facilitate the front end to support the round tube.

[0013] Furthermore, an annular groove is provided on the inner side of the conveying through hole, and a plurality of balls are provided in the annular groove to facilitate stable conveying operations.

[0014] The advantage of the rectangular tube extrusion molding device of the utility model compared with the prior art is that the utility model can stably extrude the round tube into a rectangular tube through the front side conveying, the middle preliminary extrusion deformation and the rear end extrusion molding operations, and has low material requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a first structural schematic diagram of the utility model of a rectangular tube extrusion forming device from a round tube.

[0016] Figure 2 It is a second structural schematic diagram of the utility model of the rectangular tube extrusion forming device from the round tube.

[0017] Figure 3 The utility model is a side sectional structural schematic diagram of a rectangular tube extrusion forming device from a round tube.

[0018] Figure 4 The utility model is a schematic diagram of a cross-sectional structure of a rectangular tube extrusion forming device from a round tube in a bottom view.

[0019] As shown in the figure: 1. Support base; 2. Extrusion type change box; 3. First rotating shaft; 4. Second rotating shaft; 5. Conveying roller; 6. First extrusion roller; 7. Second extrusion roller; 8. First auxiliary conveying roller; 9. Second auxiliary conveying roller; 10. Third extrusion roller; 11. Fourth extrusion roller; 12. Third rotating shaft; 13. Fourth rotating shaft; 14. Type change roller; 15. First motor; 16. First gear group transmission box; 17. Second motor; 18. Second gear group transmission box; 19. Third motor; 20. Third gear group transmission box; 21. First maintenance and repair door; 22. Second maintenance and repair door; 23. Support frame; 24. Conveying through hole; 25. Annular groove; 26. Ball. DETAILED DESCRIPTION

[0020] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0021] Combined with Figure 1-4 The rectangular tube is extruded from a round tube and comprises a supporting base 1. An extrusion type transformer box 2 is connected to the top of the supporting base 1. The front ends of the extrusion type transformer box 2 are respectively rotatably connected with a first rotating shaft 3 and a second rotating shaft 4. A conveying roller 5 is commonly connected to the middle of the first rotating shaft 3 and the middle of the second rotating shaft 4. A first motor 15 and a first gear group transmission box 16 that drive the first rotating shaft 3 and the second rotating shaft 4 to rotate are connected to both sides of the extrusion type transformer box 2. That is, the first motor 15 is directly connected to the first rotating shaft 3, and then the first rotating shaft 3 and the second rotating shaft 4 extend to the first gear group transmission box 16 and are commonly connected with a gear transmission group for convenient transmission operation.

[0022] During specific implementation: that is, during specific production, the upper and lower conveying rollers 5 are arranged, and the conveying rollers 5 are in the shape of round holes as shown in the figure. The original tube size that needs to be deformed and extruded is set to facilitate the extrusion and rotation forward transmission operation.

[0023] Combined with Figure 3-4, the extrusion type change box 2 is located at the rear end of the first rotating shaft 3 and the second rotating shaft 4 and is symmetrically connected to rotate up and down with a plurality of first extrusion rollers 6 and second extrusion rollers 7, and the distance between the plurality of first extrusion rollers 6 and second extrusion rollers 7 is gradually reduced. The extrusion type change box 2 is located between the first extrusion roller 6 and the second extrusion roller 7 and the third extrusion roller 10 and the fourth extrusion roller 11 and is rotatably connected to the first auxiliary conveying roller 8 and the second auxiliary conveying roller 9. The distance between the first auxiliary conveying roller 8 and the second auxiliary conveying roller 9 is generally the distance between the last group of first extrusion rollers 6 and second extrusion rollers 7. After the extrusion type change, the first auxiliary conveying roller 8 and the second auxiliary conveying roller 9 can be used to assist in the forward conveying operation. The extrusion type change box 2 is connected on both sides with a second motor 17 that drives the first auxiliary conveying roller 8 and the second auxiliary conveying roller 9 to rotate. and the second gear set transmission box 18, the driving transmission mode of the first auxiliary conveying roller 8 and the second auxiliary conveying roller 9 is consistent with that of the first rotating shaft 3 and the second rotating shaft 4. A plurality of third extrusion rollers 10 and fourth extrusion rollers 11 are rotatably connected at the front and rear sides of the rear ends of the first extrusion roller 6 and the second extrusion roller 7 in the extrusion type variable box 2. The distance between the plurality of third extrusion rollers 10 and the fourth extrusion rollers 11 is gradually reduced. In the specific setting, grooves can be set in the middle of the first extrusion roller 6, the second extrusion roller 7, the first auxiliary conveying roller 8, the second auxiliary conveying roller 9, the third extrusion roller 10 and the fourth extrusion roller 11 as needed. If the material of the round tube to be extruded is harder and the extrusion length needs to be lengthened, the length of the round tube in the extrusion type variable box 2 is lengthened. If no groove is set, it is easy to deform downward at the position of the third extrusion roller 10 and the fourth extrusion roller 11.

[0024] During specific implementation: after the front conveying roller 5 is forcibly conveyed forward, the round tube will be squeezed and deformed up and down after passing through multiple first squeezing rollers 6 and second squeezing rollers 7, and then the deformed round tube will be squeezed and deformed left and right after passing through multiple third squeezing rollers 10 and fourth squeezing rollers 11 at the rear end.

[0025] Combined with Figure 3-4 In the extrusion type transformation box 2, multiple groups of third rotating shafts 12 and fourth rotating shafts 13 are horizontally connected at the upper and lower rear ends of the third extrusion roller 10 and the fourth extrusion roller 11. The middle of the same group of the multiple groups of the third rotating shafts 12 and the fourth rotating shafts 13 is connected with mutually matching transformation rollers 14. The multiple groups of transformation rollers 14 will gradually extrude the initially deformed round tubes into rectangular tubes, that is, the internal shapes of the multiple groups of transformation rollers 14 are gradually arranged into rectangular operations from front to back. The extrusion type transformation box 2 is connected on both sides with a third motor 19 and a third gear group transmission box 20 for driving the multiple groups of third rotating shafts 12 and the fourth rotating shafts 13 to rotate. The transmission method of the multiple groups of third rotating shafts 12 and the fourth rotating shafts 13 is consistent with that of the first rotating shaft 3 and the second rotating shaft 4.

[0026] In specific implementation, after the front end is initially deformed, it will pass through multiple sets of deformation rollers 14 for final extrusion molding.

[0027] The first gear group transmission box 16, the second gear group transmission box 18 and the third gear group transmission box 20 are connected to the outside with a first maintenance door 21, the extrusion type transmission box 2 is connected to a plurality of second maintenance doors 22, the support base 1 is located at the front end of the conveying roller 5 and is connected to a support frame 23, the support frame 23 is provided with a conveying through hole 24 that cooperates with the conveying roller 5, the inner side of the conveying through hole 24 is provided with an annular groove 25, and a plurality of balls 26 are provided in the annular groove 25.

[0028] The above description of the utility model and its implementation methods is not restrictive. The drawings show only one implementation method of the utility model, and the actual structure is not limited thereto. In short, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the invention of the utility model, they should all fall within the protection scope of the utility model.

Claims

1. A device for extruding a rectangular tube from a round tube, comprising a support base (1), characterized in that: The top of the support base (1) is connected to an extrusion type transformer box (2), the front end of the extrusion type transformer box (2) is rotatably connected to a first rotating shaft (3) and a second rotating shaft (4) respectively, and a conveying roller (5) is commonly connected to the middle of the first rotating shaft (3) and the middle of the second rotating shaft (4); A plurality of first extrusion rollers (6) and second extrusion rollers (7) are symmetrically connected to rotate up and down at the rear ends of the first rotating shaft (3) and the second rotating shaft (4) in the extrusion type transformer box (2), and the distances between the plurality of first extrusion rollers (6) and the second extrusion rollers (7) are gradually reduced; A plurality of third extrusion rollers (10) and fourth extrusion rollers (11) are rotatably connected to the front and rear sides of the rear ends of the first extrusion roller (6) and the second extrusion roller (7) in the extrusion type transformer box (2), and the distances between the plurality of third extrusion rollers (10) and the fourth extrusion rollers (11) are gradually reduced; In the extrusion type change box (2), multiple groups of third rotating shafts (12) and fourth rotating shafts (13) are horizontally connected to the rear ends of the third extrusion roller (10) and the fourth extrusion roller (11) in the upper and lower parts, and the middle of the same group of the multiple groups of third rotating shafts (12) and fourth rotating shafts (13) are connected to mutually matching type change rollers (14); The extrusion type transmission box (2) is connected to two sides with a first motor (15) and a first gear transmission box (16) for driving the first rotating shaft (3) and the second rotating shaft (4) to rotate, and the extrusion type transmission box (2) is connected to two sides with a third motor (19) and a third gear transmission box (20) for driving multiple groups of third rotating shafts (12) and fourth rotating shafts (13) to rotate.

2. The device for extruding a rectangular tube from a round tube according to claim 1, characterized in that: The extrusion type variable box (2) is located between the first extrusion roller (6) and the second extrusion roller (7) and the third extrusion roller (10) and the fourth extrusion roller (11), and is rotatably connected to the first auxiliary conveying roller (8) and the second auxiliary conveying roller (9). The second motor (17) and the second gear train transmission box (18) for driving the first auxiliary conveying roller (8) and the second auxiliary conveying roller (9) to rotate are connected to the two sides of the extrusion type variable box (2).

3. The device for extruding a rectangular tube from a round tube according to claim 1, characterized in that: The first gear group transmission box (16), the second gear group transmission box (18) and the third gear group transmission box (20) are connected to the outside with a first maintenance door (21), and the extrusion type transmission box (2) is connected to a plurality of second maintenance doors (22).

4. The device for extruding a rectangular tube from a round tube according to claim 1, characterized in that: The support base (1) is located at the front end of the conveying roller (5) and is connected to a support frame (23). The support frame (23) is provided with a conveying through hole (24) that matches the conveying roller (5).

5. The device for extruding a rectangular tube from a round tube according to claim 4, characterized in that: An annular groove (25) is provided inside the conveying through hole (24), and a plurality of balls (26) are provided inside the annular groove (25).

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