Vertical straightening machine for producing seamless steel pipe

Abstract

The utility model discloses a vertical straightener for producing seamless steel tubes, which relates to the technical field of straighteners and comprises a frame and straightening rolls, a support frame is welded on one side of the frame, a foot stool is welded below the support frame, one end of the support frame is connected with a vertical frame, a tube pushing mechanism is mounted on one side of the vertical frame, and the tube pushing mechanism is mounted on the other side of the vertical frame. And one end of the pipe pushing mechanism is connected with a pushing plate, the inner side of the supporting frame is provided with a transmission roller through a bearing, and one side of the rack is provided with an adjusting mechanism, a clamping mechanism and a fixing block. According to the vertical straightening machine for producing the seamless steel pipes, by starting a first motor, the first motor drives a rotating shaft to rotate, the rotating shaft drives a first gear to rotate, the first gear drives a second gear to rotate, then the second gear drives a lead screw to rotate, and then a moving block drives a straightening roller to move up and down; the position of the straightening roll can be adjusted according to the size of the seamless steel pipe, and practicability of the vertical straightening machine is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of straightening machines, in particular to a vertical straightening machine used for producing seamless steel pipes. Background Art

[0002] Seamless steel pipe is a steel pipe without welds, which is manufactured by solid pickling, hot rolling or cold drawing. Seamless steel pipe has many advantages, such as high strength, excellent corrosion resistance, no pores and smooth inner and outer surfaces. In the production process of seamless steel pipe, some seamless steel pipes will bend due to the manufacturing process. A vertical straightening machine is needed to straighten the seamless steel pipe. Vertical straightening machine is a device used to correct and straighten steel pipes. It usually consists of a straightening machine body, straightening rollers, transmission system and control system. After the straightening rollers, the steel pipe gradually returns to a straight state.

[0003] However, the existing vertical straightening machines have the following disadvantages: the position of the straightening rollers of most vertical straightening machines is not convenient to adjust according to the size of the seamless steel pipe, which will affect the quality of the straightening work and reduce the practicality of the vertical straightening machine. Therefore, the existing vertical straightening machines need to be improved. Utility Model Content

[0004] The purpose of the utility model is to provide a vertical straightening machine for producing seamless steel pipes, so as to solve the problem raised by the above background technology that the positions of the straightening rollers of most vertical straightening machines on the market are not convenient to adjust according to the size of the seamless steel pipe, which will affect the quality of the straightening work and reduce the practicability of the vertical straightening machine.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a vertical straightening machine for producing seamless steel pipes, comprising a frame and straightening rollers, a support frame is welded on one side of the frame, a tripod is welded below the support frame, one end of the support frame is connected to a vertical frame, a pipe pushing mechanism is installed on one side of the vertical frame, one end of the pipe pushing mechanism is connected to a push plate, a transmission roller is installed on the inner side of the support frame through a bearing, an adjusting mechanism, a clamping mechanism and a fixed block are provided on one side of the frame, support mechanisms are provided at both ends of the frame, a moving block is connected on one side of the adjusting mechanism, a No. 3 motor is provided in the built-in grooves of the moving block and the fixed block, a U-shaped frame is welded on one end of the moving block and the fixed block, the straightening roller is installed on the inner side of the U-shaped frame through a bearing, and one end of the straightening roller is connected to the No. 3 motor through a transmission shaft.

[0006] Preferably, the support mechanism comprises a No. 1 telescopic rod, a support spring, a support plate and a connecting rod, and the No. 1 telescopic rod and the connecting rod are fixed at both ends of the frame.

[0007] Preferably, a support spring is sleeved on the outer side of the No. 1 telescopic rod, and ends of the No. 1 telescopic rod and the connecting rod close to each other are both connected to support plates, and the connecting rod is located below the No. 1 telescopic rod.

[0008] Preferably, the clamping mechanism comprises a second telescopic rod, a mounting frame, a clamping plate and a limit spring, and the mounting frame is fixed to one side of the frame.

[0009] Preferably, a second telescopic rod is connected to the inner side of the mounting frame, a clamp is connected to one end of the second telescopic rod, and a limit spring is sleeved on the outer side of the second telescopic rod.

[0010] Preferably, the adjustment mechanism includes a No. 1 gear, a rotating shaft, a No. 2 gear, a screw rod and a No. 1 motor. The rotating shaft is installed in the built-in groove of the frame through a bearing, and the No. 1 gear is fixedly sleeved on the outer side of the rotating shaft.

[0011] Preferably, one side of the No. 1 gear is meshed with the No. 2 gear, a screw rod is fixedly passed through the inner side of the No. 2 gear, and the screw rod is installed in a built-in groove of the frame away from the rotating shaft through a bearing, and one end of the rotating shaft is connected to the No. 1 motor.

[0012] Preferably, the tube pushing mechanism comprises a No. 2 motor, a push rod, a No. 3 gear and a rack, and a push rod is slidably penetrated through the inner side of the stand.

[0013] Preferably, one side of the push rod is provided with racks distributed at intervals, one side of the rack is meshed with a third gear, one side of the third gear is connected to a second motor via a transmission shaft, and one end of the push rod is connected to a push plate.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. An adjustment mechanism is set up. By starting the No. 1 motor, the No. 1 motor drives the shaft to rotate, and the shaft drives the No. 1 gear to rotate, and the No. 1 gear drives the No. 2 gear to rotate, and then the No. 2 gear drives the screw to rotate, and then the moving block drives the straightening roller to move up and down. The position of the straightening roller can be adjusted according to the size of the seamless steel pipe, which improves the practicality of the vertical straightening machine.

[0016] 2. A clamping mechanism is provided, which drives the No. 2 telescopic rod to push the clamp to one side through the rebound of the limit spring, so that the clamp is against the outside of the seamless steel pipe, limiting the seamless steel pipe to prevent the seamless steel pipe from deflecting during straightening, thereby improving the working quality of the vertical straightening machine.

[0017] 2. A pipe pushing mechanism is provided. Through the No. 2 motor, the No. 2 motor drives the No. 3 gear to rotate, and then the No. 3 gear is engaged with the rack, so that the push rod pushes the push plate to one side. The push plate pushes one end of the seamless steel pipe, which can assist the seamless steel pipe to move forward and improve the working efficiency of the vertical straightening machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the main cross-sectional structure of the utility model;

[0020] Figure 3 This is a schematic diagram of the side cross-sectional structure of the straightening roller of the utility model;

[0021] Figure 4 This is a schematic diagram of the top view structure of the utility model;

[0022] Figure 5 This is an enlarged structural diagram of the utility model at A;

[0023] Figure 6 It is a three-dimensional structural schematic diagram of the clamping mechanism of the utility model.

[0024] In the figure: 1. frame; 2. support frame; 3. stand; 4. transmission roller; 5. tripod; 6. support mechanism; 601. telescopic rod No. 1; 602. support spring; 603. support plate; 604. connecting rod; 7. clamping mechanism; 701. telescopic rod No. 2; 702. mounting frame; 703. clamping plate; 704. limit spring; 8. adjustment mechanism; 801. gear No. 1; 802. rotating shaft; 803. gear No. 2; 804. screw rod; 805. motor No. 1; 9. tube pushing mechanism; 901. motor No. 2; 902. push rod; 903. gear No. 3; 904. rack; 10. straightening roller; 11. moving block; 12. motor No. 3; 13. U-shaped frame; 14. fixed block; 15. push plate. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] See also Figure 1-6The utility model provides a technical solution: a vertical straightening machine for producing seamless steel pipes, comprising a frame 1 and a straightening roller 10, a support frame 2 is welded on one side of the frame 1, a tripod 5 is welded below the support frame 2, one end of the support frame 2 is connected to a stand 3, a pipe pushing mechanism 9 is installed on one side of the stand 3, one end of the pipe pushing mechanism 9 is connected to a push plate 15, a transmission roller 4 is installed on the inner side of the support frame 2 through a bearing, an adjusting mechanism 8, a clamping mechanism 7 and a fixed block 14 are provided on one side of the frame 1, support mechanisms 6 are provided at both ends of the frame 1, a moving block 11 is connected on one side of the adjusting mechanism 8, a No. 3 motor 12 is provided in the built-in grooves of the moving block 11 and the fixed block 14, a U-shaped frame 13 is welded on one end of the moving block 11 and the fixed block 14, the straightening roller 10 is installed on the inner side of the U-shaped frame 13 through a bearing, and one end of the straightening roller 10 is connected to the No. 3 motor 12 through a transmission shaft.

[0027] according to Figure 1-2 and Figure 4 As shown, the support mechanism 6 includes a telescopic rod No. 1 601, a support spring 602, a support plate 603 and a connecting rod 604. The two ends of the frame 1 are fixed with a telescopic rod No. 1 601 and a connecting rod 604. The outer side of the telescopic rod No. 1 601 is sleeved with a support spring 602. The ends of the telescopic rod No. 1 601 and the connecting rod 604 that are close to each other are both connected with a support plate 603, and the connecting rod 604 is located below the telescopic rod No. 1 601. A ball bearing is provided on one side of the support plate 603.

[0028] In specific implementation, when the seamless steel pipe is straightened, the support spring 602 drives the No. 1 telescopic rod 601 to push the support plate 603 downward, so that the support plate 603 supports the upper and lower sides of the seamless steel pipe, preventing the seamless steel pipe from falling due to gravity during straightening, thereby improving the stability of the seamless steel pipe straightening process.

[0029] according to Figure 1-2 , Figure 4 and Figure 6 As shown, the clamping mechanism 7 includes a No. 2 telescopic rod 701, a mounting frame 702, a clamping plate 703 and a limit spring 704. The mounting frame 702 is fixed to one side of the frame 1, the inner side of the mounting frame 702 is connected to the No. 2 telescopic rod 701, one end of the No. 2 telescopic rod 701 is connected to the clamping plate 703, the outer side of the No. 2 telescopic rod 701 is sleeved with a limit spring 704, and the clamping plate 703 is arc-shaped.

[0030] In specific implementation, when the seamless steel pipe enters the inner side of the mounting frame 702, the limit spring 704 rebounds and drives the second telescopic rod 701 to push the clamp 703 to one side, so that the clamp 703 is against the outer side of the seamless steel pipe, limiting the seamless steel pipe to prevent the seamless steel pipe from shifting during straightening, thereby improving the working quality of the vertical straightening machine.

[0031] according to Figure 1-3 As shown, the adjustment mechanism 8 includes a No. 1 gear 801, a rotating shaft 802, a No. 2 gear 803, a screw rod 804 and a No. 1 motor 805. The rotating shaft 802 is installed in the built-in groove of the frame 1 through a bearing, the No. 1 gear 801 is fixedly sleeved on the outer side of the rotating shaft 802, and the No. 2 gear 803 is meshed on one side of the No. 1 gear 801. The inner side of the No. 2 gear 803 is fixedly penetrated by a screw rod 804, and the screw rod 804 is installed in the built-in groove of the frame 1 away from the rotating shaft 802 through a bearing, one end of the rotating shaft 802 is connected to the No. 1 motor 805, and the moving block 11 and the screw rod 804 are threadedly sleeved.

[0032] In specific implementation, when it is necessary to adjust the position of the straightening roller 10 according to the size of the seamless steel pipe, the No. 1 motor 805 can be started to drive the rotating shaft 802 to rotate, and the rotating shaft 802 drives the No. 1 gear 801 to rotate, and the No. 1 gear 801 drives the No. 2 gear 803 to rotate, and then the No. 2 gear 803 drives the screw rod 804 to rotate, and then the moving block 11 drives the straightening roller 10 to move up and down, so that the position of the straightening roller 10 can be quickly adjusted, thereby improving the practicality of the vertical straightening machine.

[0033] according to Figure 1-2 and Figure 4-5 As shown, the tube pushing mechanism 9 includes a No. 2 motor 901, a push rod 902, a No. 3 gear 903 and a rack 904. The push rod 902 is slidably penetrated on the inner side of the stand 3. One side of the push rod 902 is provided with a rack 904 distributed at intervals. One side of the rack 904 is meshed with a No. 3 gear 903. One side of the No. 3 gear 903 is connected to the No. 2 motor 901 through a transmission shaft. One end of the push rod 902 is connected to the push plate 15.

[0034] In specific implementation, when the seamless steel pipe is straightening, one end of the seamless steel pipe may get stuck due to some circumstances, resulting in the inability to continue straightening, thereby reducing the working efficiency of the vertical straightening machine. When one end of the seamless steel pipe is stuck and cannot move forward, the No. 2 motor 901 can be used to drive the No. 3 gear 903 to rotate, and then the No. 3 gear 903 engages with the rack 904, so that the push rod 902 pushes the push plate 15 to one side, and the push plate 15 pushes one end of the seamless steel pipe, which can assist the seamless steel pipe to move forward and improve the working efficiency of the vertical straightening machine.

[0035] Working principle: When using this vertical straightening machine for producing seamless steel pipes, first, place the seamless steel pipe on the driving roller 4 of the support frame 2, and convey it forward through the driving roller 4 so that the seamless steel pipe passes through the support mechanism 6 and is supported by the support mechanism 6. Then, the position of the straightening roller 10 is adjusted by the adjustment mechanism 8 to meet the straightening requirements of seamless steel pipes of different sizes. The No. 3 motor 12 drives the straightening roller 10 to rotate, applies pressure to the seamless steel pipe, and straightens the bent parts of the seamless steel pipe. During the straightening process, the seamless steel pipe is limited by the clamping mechanism 7 to prevent deviation. When the seamless steel pipe is long and one end is stuck and cannot move forward, it can be pushed assisted by the pipe pushing mechanism 9, which improves the practicality and work efficiency of the seamless steel pipe. The content not described in detail in this description belongs to the existing technology known to professional and technical personnel in this field.

[0036] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A vertical straightening machine for producing seamless steel pipes, comprising a frame (1) and straightening rollers (10), characterized in that: A support frame (2) is welded to one side of the frame (1), a tripod (5) is welded below the support frame (2), one end of the support frame (2) is connected to a stand frame (3), a pipe pushing mechanism (9) is installed on one side of the stand frame (3), one end of the pipe pushing mechanism (9) is connected to a push plate (15), a transmission roller (4) is installed on the inner side of the support frame (2) via a bearing, and an adjustment mechanism (8), a clamping mechanism (7) and a fixing block (14) are provided on one side of the frame (1). Support mechanisms (6) are provided at both ends of the frame (1); a moving block (11) is connected to one side of the adjustment mechanism (8); a third motor (12) is provided in the built-in grooves of the moving block (11) and the fixed block (14); a U-shaped frame (13) is welded to one end of each of the moving block (11) and the fixed block (14); the straightening roller (10) is installed on the inner side of the U-shaped frame (13) via a bearing, and one end of the straightening roller (10) is connected to the third motor (12) via a transmission shaft.

2. A vertical straightening machine for producing seamless steel pipes according to claim 1, characterized in that: The support mechanism (6) comprises a first telescopic rod (601), a support spring (602), a support plate (603) and a connecting rod (604); the first telescopic rod (601) and the connecting rod (604) are fixed at both ends of the frame (1).

3. A vertical straightening machine for producing seamless steel pipes according to claim 2, characterized in that: A support spring (602) is sleeved on the outer side of the first telescopic rod (601), and the ends of the first telescopic rod (601) and the connecting rod (604) close to each other are both connected to a support plate (603), and the connecting rod (604) is located below the first telescopic rod (601).

4. A vertical straightening machine for producing seamless steel pipes according to claim 1, characterized in that: The clamping mechanism (7) comprises a second telescopic rod (701), a mounting frame (702), a clamping plate (703) and a limit spring (704); the mounting frame (702) is fixed to one side of the frame (1).

5. A vertical straightening machine for producing seamless steel pipes according to claim 4, characterized in that: The inner side of the mounting frame (702) is connected to a second telescopic rod (701), one end of the second telescopic rod (701) is connected to a clamping plate (703), and the outer side of the second telescopic rod (701) is sleeved with a limit spring (704).

6. A vertical straightening machine for producing seamless steel pipes according to claim 1, characterized in that: The adjusting mechanism (8) comprises a first gear (801), a rotating shaft (802), a second gear (803), a screw rod (804) and a first motor (805); the rotating shaft (802) is installed in the built-in groove of the frame (1) via a bearing, and the outer side of the rotating shaft (802) is fixedly sleeved with the first gear (801).

7. A vertical straightening machine for producing seamless steel pipes according to claim 6, characterized in that: A second gear (803) is meshed with one side of the first gear (801), a screw rod (804) is fixedly passed through the inner side of the second gear (803), and the screw rod (804) is installed in a built-in groove of the frame (1) away from the rotating shaft (802) through a bearing, and one end of the rotating shaft (802) is connected to a first motor (805).

8. A vertical straightening machine for producing seamless steel pipes according to claim 1, characterized in that: The tube pushing mechanism (9) comprises a second motor (901), a push rod (902), a third gear (903) and a rack (904), and the push rod (902) is slidably penetrated through the inner side of the stand (3).

9. A vertical straightening machine for producing seamless steel pipes according to claim 8, characterized in that: One side of the push rod (902) is provided with racks (904) distributed at intervals, one side of the rack (904) is meshed with a third gear (903), one side of the third gear (903) is connected to a second motor (901) via a transmission shaft, and one end of the push rod (902) is connected to a push plate (15).

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