Straightening roller for caliber deformation of longitudinal welded pipe

Abstract

The straight welded pipe caliber deformation correcting roller comprises a roller body, a plurality of sliding grooves are formed in the roller body in an array mode, guide grooves are formed in the positions, corresponding to the interiors of the sliding grooves, of the roller body, the interiors of the guide grooves are slidably connected with first hinge seats, and the positions, corresponding to the guide grooves, of the interior of the roller body are rotatably connected with lead screws; gears are fixedly connected to one sides of the multiple lead screws, expansion plates are slidably connected to the interiors of the multiple sliding grooves, second hinge seats are fixedly connected to the positions, corresponding to the interiors of the sliding grooves, of the multiple expansion plates, ejector rods are hinged to the multiple second hinge seats, a limiting plate is fixedly connected to one side of the roller body, and a gear ring is rotationally connected to the limiting plate; according to the straightening roller device, the applicability of a single straightening roller can be high, the energy consumption is low, and the practicability is high.

Description

Technical Field

[0001] The utility model relates to the technical field of straight seam welded pipe processing equipment, in particular to a straight seam welded pipe caliber deformation correction roller. Background Art

[0002] The straight seam welded pipe is a steel pipe made of hot-rolled or cold-rolled steel plates or steel strips, which is obtained by straight seam welding on welding equipment. When the straight seam welded pipe is squeezed by external force during the production process, the diameter of the pipe mouth is easily deformed. At this time, it is necessary to use a correction roller to correct the diameter of the pipe mouth.

[0003] In the prior art, the correction roller is a round long cylinder as a whole. Generally, a plurality of correction rollers are used to extrude and correct the pipe mouth. A plurality of correction rollers correct a single pipe mouth at the same time, which has high energy consumption and low practicality. Utility Model Content

[0004] The utility model aims to provide a straight seam welded pipe diameter deformation correction roller to solve the technical problems of high energy consumption and low practicality in the correction of pipe mouth extrusion by multiple correction rollers proposed in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a straight seam welded pipe diameter deformation correction roller, including a roller body, a plurality of slide grooves arranged in an array are provided on the roller body, guide grooves are provided at positions corresponding to the internal positions of the slide grooves on the roller body, a first hinge seat is slidably connected inside the plurality of guide grooves, a lead screw is rotatably connected at positions corresponding to the guide grooves inside the roller body, a gear is fixedly connected on one side of the plurality of lead screws, an expansion plate is slidably connected inside the plurality of slide grooves, a second hinge seat is fixedly connected at positions corresponding to the internal positions of the slide grooves on the plurality of expansion plates, a plurality of second hinge seats are hingedly connected to a push rod, a limiting plate is fixedly connected on one side of the roller body, a gear ring is rotatably connected on the limiting plate, a connecting block is fixedly connected to the top end of one side of the limiting plate, a fixing bolt is threadedly connected to the connecting block, and a plurality of fixing grooves arranged in an array are provided on the gear ring.

[0006] As a preferred solution of the utility model, one side of the screw rod passes through the side wall of the roller body and is located inside the guide groove, and the screw rod is threadedly connected to the first hinge seat.

[0007] As a preferred solution of the utility model, the other end of the push rod is hinged to the first hinge seat.

[0008] As a preferred solution of the present invention, the gears are all located inside the gear ring, and the gears are all meshingly connected with the gear ring.

[0009] As a preferred solution of the present invention, the fixing grooves are all circular in shape.

[0010] Compared with the prior art, the beneficial effect of the straight seam welded pipe diameter deformation correction roller of the utility model is that a single correction roller can be inserted into the inside of the pipe mouth, and the expansion plates are moved in opposite directions through the linkage of various mechanisms, so that the correction roller adapts to the inner diameter of the pipe body, and the diameter of the pipe body can be corrected by rotating the correction roller and the expansion plate, so that the single correction roller has strong applicability, reduces energy consumption, and is highly practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. Obviously, the drawings described below are only examples of the embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0012] Figure 1 This is a schematic diagram of the main structure of an embodiment of the utility model;

[0013] Figure 2 It is a side view structural schematic diagram of an embodiment of the utility model;

[0014] Figure 3 This is a schematic diagram of the internal structure of the roller body in the embodiment of the utility model;

[0015] Figure 4 It is a schematic structural diagram of the embodiment of the utility model when the gear ring and the limiting plate are separated.

[0016] Figure numerals: 1, roller body; 2, slide groove; 3, guide groove; 4, first hinge seat; 5, screw rod; 6, gear; 7, expansion plate; 8, second hinge seat; 9, push rod; 10, limit plate; 11, gear ring; 12, connecting block; 13, fixing bolt; 14, fixing groove. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical solution and advantages of the embodiments of the present invention more clear, the embodiments of the present invention are further described in detail in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0018] In the description of the embodiments of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the embodiments of the present invention.

[0019] In the description of the embodiments of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, an integral connection, or a detachable connection; it can be the internal connection of two components; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present invention can be understood according to specific circumstances.

[0020] See also Figure 1-4 As shown, the straight seam welded pipe diameter deformation correction roller of the utility model embodiment includes a roller body 1, a plurality of slide grooves 2 arranged in an array are opened on the roller body 1, guide grooves 3 are opened at the internal positions of the roller body 1 corresponding to the slide grooves 2, and a first hinge seat 4 is slidably connected inside the plurality of guide grooves 3.

[0021] Screw rods 5 are rotatably connected at positions corresponding to the guide grooves 3 inside the roller body 1, and gears 6 are fixedly connected to one side of multiple screw rods 5. Expansion plates 7 are slidably connected to the inside of multiple slide grooves 2. Second hinge seats 8 are fixedly connected to the multiple expansion plates 7 at positions corresponding to the inside of the slide grooves 2. Multiple second hinge seats 8 are hinged with push rods 9. A limiting plate 10 is fixedly connected to one side of the roller body 1, and a gear ring 11 is rotatably connected to the limiting plate 10. A connecting block 12 is fixedly connected to the top of one side of the limiting plate 10, and a fixing bolt 13 is threadedly connected to the connecting block 12. The gear ring 11 is provided with multiple fixing grooves 14 arranged in an array.

[0022] One side of the screw rod 5 passes through the side wall of the roller body 1 and is located inside the guide groove 3. The screw rod 5 is threadedly connected to the first hinge seat 4, so that the screw rod 5 can drive the first hinge seat 4 to move.

[0023] The other end of the push rod 9 is hinged to the first hinge seat 4 .

[0024] The gears 6 are all located inside the gear ring 11 , and are meshedly connected with the gear ring 11 , so that the gear ring 11 can drive the gears 6 to rotate.

[0025] The fixing grooves 14 are all circular in shape, and the circular fixing grooves 14 are convenient for connection with the fixing bolts 13 .

[0026] When using the embodiment of the utility model, the roller body 1 can be connected with the internal shaft and the external rotating component, the roller body 1 is inserted into the pipe mouth that needs to be corrected, and the external tool is inserted into the fixed groove 14. The ring gear 11 is rotated by the connection between the external tool and the fixed groove 14. When the ring gear 11 rotates, it will drive multiple gears 6 to rotate at the same time. The rotation of the gear 6 will drive the screw rod 5 to rotate, and the screw rod 5 is bidirectionally set. The screw rod 5 drives each first articulated seat 4 to move in a direction away from each other, and the first articulated seat 4 will cause the push rod 9 to move with it, and the push rod 9 moves during the movement process. Because the other end is hinged to the second hinge seat 8, the movable push rod 9 will slowly rotate and stand up due to the second hinge seat 8. At this time, the rotation and standing of the push rod 9 will drive the expansion plate 7 to move outward through the second hinge seat 8. The simultaneous movement of multiple expansion plates 7 in opposite directions can increase the diameter of the entire roller body 1. When the expansion plate 7 is tightly fitted to the inner wall of the tube body, stop rotating the gear ring 11, rotate the fixing bolt 13 downward and insert it into the fixing groove 14, and then make the external rotating component drive the roller body 1 and the expansion plate 7 to rotate to correct the diameter of the tube mouth.

[0027] The above shows and describes the basic principles of the present invention. The above are only preferred embodiments of the present invention and are not intended to limit the present invention. The above embodiments and descriptions in the specification are only intended to illustrate the principles of the present invention. Without departing from the scope of the present invention, any modifications, equivalent substitutions and improvements made within the spirit and scope of the present invention should be included in the protection scope of the present invention.

Claims

1. The straight seam welded pipe diameter deformation correction roller is characterized by: The invention comprises a roller body (1), wherein the roller body (1) is provided with a plurality of slide grooves (2) arranged in an array, wherein guide grooves (3) are provided at positions inside the roller body (1) corresponding to the slide grooves (2), wherein the first hinge seat (4) is slidably connected to the interior of the plurality of guide grooves (3), wherein screw rods (5) are rotatably connected to the positions inside the roller body (1) corresponding to the guide grooves (3), wherein one side of the plurality of screw rods (5) is fixedly connected to a gear (6), wherein the plurality of slide grooves (2) are slidably connected to the interior of the expansion plates (7), wherein the plurality of expansion plates (7 ...). The filling plate (7) is fixedly connected to a second hinge seat (8) at a position inside the corresponding slide groove (2), and a plurality of the second hinge seats (8) are hingedly connected to a push rod (9). One side of the roller body (1) is fixedly connected to a limit plate (10), and a gear ring (11) is rotatably connected to the limit plate (10). A connecting block (12) is fixedly connected to the top of one side of the limit plate (10), and a fixing bolt (13) is threadedly connected to the connecting block (12). The gear ring (11) is provided with a plurality of fixing grooves (14) arranged in an array.

2. The straight seam welded pipe diameter deformation correction roller according to claim 1 is characterized in that: One side of the screw rod (5) passes through the side wall of the roller body (1) and is located inside the guide groove (3), and the screw rod (5) is threadedly connected to the first hinge seat (4).

3. The straight seam welded pipe diameter deformation correction roller according to claim 1 is characterized in that: The other end of the push rod (9) is hinged to the first hinge seat (4).

4. The straight seam welded pipe diameter deformation correction roller according to claim 1 is characterized in that: The gears (6) are all located inside the gear ring (11), and the gears (6) are all meshingly connected with the gear ring (11).

5. The straight seam welded pipe diameter deformation correction roller according to claim 1 is characterized in that: The fixing grooves (14) are all circular in shape.

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