Extrusion edge rolling mechanism for steel pipe production

Abstract

The utility model relates to the field of steel pipe production, in particular to an extrusion edge rolling mechanism for steel pipe production, which comprises a U-shaped frame and an auxiliary mechanism, and a machining mechanism is mounted in the U-shaped frame. When the device conducts edge rolling machining on a steel pipe, through sliding connection between a sliding rod and a U-shaped frame, after an air cylinder drives a push plate to stretch out by the limit length, the push plate can eject a flat clamping plate out of the inner wall of the U-shaped frame, and therefore the flat clamping plates of the two auxiliary mechanisms can apply pushing force to the front end and the rear end of the rolled steel pipe, and the deviated steel pipe is corrected; through threaded connection between a sliding plate and a one-way screw rod and sliding connection between the sliding plate and a guide rod, the front-back position of the sliding plate can be adjusted after the one-way screw rod is rotated, and therefore the device can be adjusted according to the size of the steel pipe; the situation that the steel pipe is extruded and deformed due to the large size of the steel pipe or the two clamping flat plates cannot push the steel pipe due to the small size of the steel pipe is avoided.

Description

Technical Field

[0001] This utility model relates to the field of steel pipe production, and in particular to an extrusion and rolling mechanism for steel pipe production. Background Technology

[0002] Steel pipes are hollow steel products whose length is much greater than their diameter or circumference. They are classified by cross-sectional shape into circular, square, rectangular, and irregularly shaped steel pipes. They are also classified by material into carbon structural steel pipes, low-alloy structural steel pipes, alloy steel pipes, and composite steel pipes.

[0003] A search of patent document CN219425348U reveals "an extrusion and rolling mechanism for a steel pipe production line. This device can adjust the distance between two sets of auxiliary rolling rollers through a transverse transmission mechanism. During the adjustment process, both sets of auxiliary rolling rollers are adjusted synchronously. By changing the distance between the two sets of auxiliary rolling rollers, the main rolling roller presses downwards, resulting in different bending degrees of the steel pipe due to different fulcrums on the steel pipe."

[0004] When the above-mentioned device needs to roll a thin steel pipe into a circle with a large diameter, when the rolling process is halfway completed and one end of the rolled steel pipe is at its highest position, the weight of the rolled steel pipe is relatively large due to the large amount of rolled steel pipe. This can easily cause the rolled steel pipe to tilt forward or backward, so that after the steel pipe is fully rolled, the rolled steel pipe will be in a spiral shape similar to a spring, which will require subsequent correction after the rolling process. Utility Model Content

[0005] The purpose of this invention is to provide an extrusion and rolling mechanism for steel pipe production in order to solve the above-mentioned problems.

[0006] This utility model achieves the above objectives through the following technical solutions:

[0007] An extrusion and rolling mechanism for steel pipe production includes a U-shaped frame, a processing mechanism installed inside the U-shaped frame, and an auxiliary mechanism;

[0008] The auxiliary mechanism is divided into two groups, which are respectively installed on the two upper surfaces of the U-shaped frame, and the two groups of auxiliary mechanisms are arranged symmetrically.

[0009] Each auxiliary mechanism includes two slide rods, which are slidably connected to the front end of the U-shaped frame. A clamping plate is fixed to the rear end of the slide rod. A spring is provided around the slide rod, with one end of the spring fixed to the corresponding slide rod and the other end of the spring fixed to the U-shaped frame. Two fixing bars are fixed to the upper surface of the U-shaped frame. One fixing bar has a one-way screw rotatably connected inside, and a guide rod is fixed inside the other fixing bar. A sliding plate is slidably connected around the guide rod, and the sliding plate is threadedly connected to the one-way screw. A cylinder is installed in the middle of the sliding plate, and a push plate is fixed to the telescopic end of the cylinder.

[0010] Preferably, the corresponding ends of the two clamping plates are flush with the inner wall of the U-shaped frame, and one end of the push plate is provided with a rubber layer.

[0011] Preferably, one end of the unidirectional screw is fixed with a throttle for rotation.

[0012] Preferably, the processing mechanism includes a bidirectional screw, which is rotatably connected to the interior of the rear end of the U-shaped frame. A first motor is installed at the input end of the bidirectional screw, and two sliders are threadedly connected to the outer periphery of the bidirectional screw. The two sliders are slidably connected to the U-shaped frame. A second motor is installed at the rear end of each slider. A secondary wheel is fixed at the output end of the second motor. A hydraulic cylinder is installed at the upper rear end of the U-shaped frame. A lifting block is fixed at the telescopic end of the hydraulic cylinder, and a main wheel is rotatably connected to the front end of the lifting block.

[0013] Preferably, the positions of the two auxiliary wheels and the main wheel correspond, and the size of the main wheel is larger than that of the auxiliary wheels.

[0014] Preferably, the outer walls of the main wheel and the two auxiliary wheels are provided with arc-shaped grooves.

[0015] The advantages compared to existing technologies are as follows:

[0016] When the device rolls the steel pipe, the sliding connection between the slide rod and the U-shaped frame allows the push plate to extend to its limit length when the cylinder drives it. This push plate then pushes the clamping plate out of the inner wall of the U-shaped frame, allowing the clamping plates of the two auxiliary mechanisms to apply a pushing force to the front and rear ends of the rolled steel pipe. This corrects any deviation in the steel pipe. Furthermore, the threaded connection between the sliding plate and the one-way screw, as well as the sliding connection between the sliding plate and the guide rod, allows the front and rear positions of the sliding plate to be adjusted when the one-way screw is rotated. This enables the device to be adjusted according to the size of the steel pipe, preventing situations where the steel pipe is too large and deformed, or too small and the two clamping plates cannot push the steel pipe. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the extrusion and rolling mechanism for steel pipe production according to the present invention;

[0019] Figure 2 This is a schematic diagram of the working mechanism in the extrusion and rolling mechanism for steel pipe production described in this utility model;

[0020] Figure 3 This is a partial structural diagram of the working mechanism in the extrusion and rolling mechanism for steel pipe production described in this utility model;

[0021] Figure 4 This is a schematic diagram of the auxiliary mechanism in the extrusion and rolling mechanism for steel pipe production described in this utility model;

[0022] Figure 5 This is a partial structural diagram of the auxiliary mechanism in the extrusion and rolling mechanism for steel pipe production described in this utility model.

[0023] The annotations in the attached figures are explained as follows:

[0024] 1. U-shaped frame; 2. Bidirectional screw; 21. First motor; 22. Slider; 23. Second motor; 24. Auxiliary wheel; 25. Hydraulic cylinder; 26. Lifting block; 27. Main wheel; 3. Slide rod; 31. Clamping plate; 32. Spring; 33. Fixing bar; 34. One-way screw; 35. Guide rod; 36. Sliding plate; 37. Cylinder; 38. Push plate. Detailed Implementation

[0025] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0026] The present invention will be further described below with reference to the accompanying drawings:

[0027] like Figures 1-5 As shown, a steel pipe extrusion and rolling mechanism includes a U-shaped frame 1, a processing mechanism installed inside the U-shaped frame 1, and an auxiliary mechanism.

[0028] The processing mechanism includes a bidirectional screw 2, which is rotatably connected to the interior of the rear end of the U-shaped frame 1. A first motor 21 is installed at the input end of the bidirectional screw 2. Two sliders 22 are threadedly connected to the outer periphery of the bidirectional screw 2, and the two sliders 22 are slidably connected to the U-shaped frame 1. A second motor 23 is installed at the rear end of each slider 22. A secondary wheel 24 is fixed at the output end of the second motor 23. A hydraulic cylinder 25 is installed at the upper rear end of the U-shaped frame 1. A lifting block 26 is fixed at the telescopic end of the hydraulic cylinder 25. A main wheel 27 is rotatably connected to the front end of the lifting block 26. The positions of the two secondary wheels 24 and the main wheel 27 are corresponding. The main wheel 27 is larger than the secondary wheels 24. The outer walls of the main wheel 27 and the two secondary wheels 24 are all provided with arc-shaped grooves. Through the threaded connection between the sliders 22 and the bidirectional screw 2 and the slidable connection between the sliders 22 and the U-shaped frame 1, when the first motor 21 drives the bidirectional screw 2 to rotate, the distance between the two sliders 22 can be shortened or lengthened.

[0029] The auxiliary mechanism is divided into two groups, which are respectively installed on the two upper surfaces of the U-shaped frame 1 and are symmetrically arranged. Each group of auxiliary mechanisms includes two slide rods 3, which are slidably connected to the front end of the U-shaped frame 1. A clamping plate 31 is fixed to the rear end of the slide rod 3. One end of the clamping plate 31 is flush with the inner wall of the U-shaped frame 1. A spring 32 is provided around the slide rod 3, with one end of the spring 32 fixed to the corresponding slide rod 3 and the other end of the spring 32 fixed to the U-shaped frame 1. Two fixing bars 33 are fixed to the upper surface of the U-shaped frame 1. One of the fixing bars 33 is rotatably connected to a single... A one-way screw 34 has a throttle handle fixed to one end for rotation, and a guide rod 35 fixed inside another fixing bar 33. A sliding plate 36 is slidably connected to the guide rod 35, and the sliding plate 36 is threadedly connected to the one-way screw 34. A cylinder 37 is installed in the middle of the sliding plate 36, and a push plate 38 is fixed to the telescopic end of the cylinder 37. One end of the push plate 38 is provided with a rubber layer. Through the threaded connection between the sliding plate 36 and the one-way screw 34 and the sliding connection between the sliding plate 36 and the guide rod 35, the front and back position of the sliding plate 36 can be adjusted when the one-way screw 34 is rotated.

[0030] Working Principle: During operation, the device is first adjusted according to the size of the steel pipe. Through the threaded connection between slider 22 and the double-ended screw 2, and the sliding connection between slider 22 and the U-shaped frame 1, when the first motor 21 drives the double-ended screw 2 to rotate, the distance between the two sliders 22 can be shortened or lengthened, thereby adjusting the distance between the two auxiliary wheels 24. Subsequently, the activation of the hydraulic cylinder 25 adjusts the height of the main wheel 27. This allows the device to be used with steel pipes of various sizes, and the adjustment of the height of the main wheel 27 allows the device to roll the steel pipe into a circle of a suitable diameter as needed. During the processing, the sliding connection between the slide rod 3 and the U-shaped frame 1... Next, when the cylinder 37 drives the push plate 38 to extend to its limit length, the push plate 38 can push the clamping plate 31 out of the inner wall of the U-shaped frame 1. Then, the clamping plates 31 of the two auxiliary mechanisms can apply a pushing force to the front and rear ends of the rolled-out steel pipe, thereby correcting the steel pipe that has deviated. Through the threaded connection between the sliding plate 36 and the one-way screw 34 and the sliding connection between the sliding plate 36 and the guide rod 35, the front and rear positions of the sliding plate 36 can be adjusted when the one-way screw 34 is rotated. In this way, the device can be adjusted according to the size of the steel pipe to avoid the situation where the steel pipe is too large and thus deformed, or the two clamping plates 31 cannot push the steel pipe due to the small size.

[0031] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A steel pipe extrusion and rolling mechanism, comprising a U-shaped frame (1), wherein a processing mechanism is installed inside the U-shaped frame (1), characterized in that: It also includes auxiliary mechanisms; The auxiliary mechanism is divided into two groups, which are respectively installed on the two upper surfaces of the U-shaped frame (1) and are arranged symmetrically. Each auxiliary mechanism includes two slide rods (3), which are slidably connected to the front end of the U-shaped frame (1). A clamping plate (31) is fixed to the rear end of the slide rod (3). A spring (32) is provided around the slide rod (3), and one end of the spring (32) is fixed to the corresponding slide rod (3), while the other end of the spring (32) is fixed to the U-shaped frame (1). Two fixing strips (33) are fixed to the upper end face of the U-shaped frame (1). One of the fixing strips (33) is rotatably connected to a one-way screw (34) inside, and a guide rod (35) is fixed inside the other fixing strip (33). A sliding plate (36) is slidably connected around the guide rod (35), and the sliding plate (36) is threadedly connected to the one-way screw (34). A cylinder (37) is installed in the middle of the sliding plate (36), and a push plate (38) is fixed to the telescopic end of the cylinder (37).

2. The extrusion and rolling mechanism for steel pipe production according to claim 1, characterized in that: The corresponding ends of the two clamping plates (31) are flush with the inner wall of the U-shaped frame (1), and one end of the push plate (38) is provided with a rubber layer.

3. The extrusion and rolling mechanism for steel pipe production according to claim 1, characterized in that: One end of the one-way screw (34) is fixed with a throttle for rotation.

4. The extrusion and rolling mechanism for steel pipe production according to claim 1, characterized in that: The processing mechanism includes a bidirectional screw (2), which is rotatably connected to the interior of the rear end of the U-shaped frame (1). A first motor (21) is installed at the input end of the bidirectional screw (2). Two sliders (22) are threadedly connected to the outer periphery of the bidirectional screw (2), and the two sliders (22) are slidably connected to the U-shaped frame (1). A second motor (23) is installed at the rear end of each of the two sliders (22). A secondary wheel (24) is fixed at the output end of the second motor (23). A hydraulic cylinder (25) is installed at the upper rear end of the U-shaped frame (1). A lifting block (26) is fixed at the telescopic end of the hydraulic cylinder (25). A main wheel (27) is rotatably connected to the front end of the lifting block (26).

5. The extrusion and rolling mechanism for steel pipe production according to claim 4, characterized in that: The two auxiliary wheels (24) and the main wheel (27) are positioned correspondingly, and the main wheel (27) is larger than the auxiliary wheels (24).

6. The extrusion and rolling mechanism for steel pipe production according to claim 4, characterized in that: The outer walls of the main wheel (27) and the two auxiliary wheels (24) are provided with arc-shaped grooves.

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