A straightening mechanism for small-diameter straight seam welded pipes

Abstract

This utility model discloses a straightening mechanism for small-diameter straight seam welded pipes, including a frame with an adjustment mechanism. The adjustment mechanism includes an installation groove and a receiving groove. A bidirectional lead screw is rotatably connected inside the installation groove, and a rotating handle is fixedly connected to the top of the bidirectional lead screw. Multiple abutment grooves are opened at the bottom of the rotating handle. Symmetrically arranged moving blocks are slidably connected inside the installation groove, and pressure rollers are rotatably connected to each moving block. A lifting plate is slidably connected inside the receiving groove, and abutment rods are fixedly connected to the top of the lifting plate at positions corresponding to the abutment grooves. In this utility model, the adjustment mechanism can simultaneously adjust the tension of the upper and lower belts, making adjustment highly convenient. Furthermore, the fixation of the springs and abutment rods provides stability for the position of the rotating handle and the bidirectional lead screw, preventing the bidirectional lead screw from rotating unexpectedly due to excessive pressure.

Description

Technical Field

[0001] This utility model relates to the field of straight seam welded pipe processing technology, specifically a straightening mechanism for small-diameter straight seam welded pipes. Background Technology

[0002] Straight seam welded pipe is a steel pipe made by rolling and welding hot-rolled or cold-rolled steel plates or strips. It is obtained by straight seam welding on welding equipment. During the processing of straight seam welded pipe, straight seam welded pipe needs to use a straightening device to straighten its bends.

[0003] Patent document CN221473071U discloses an adjustable straight seam welded pipe straightening mechanism, including a first housing, a second housing fixedly connected to the top of the first housing, two first straightening rollers rotatably connected inside the first housing, and clearance openings on both sides of the second housing, with sliding plates slidably connected within each clearance opening. Two second straightening rollers are rotatably connected between the two sliding plates, and drive components for moving the sliding plates are provided on both outer walls of the second housing. This invention not only straightens welded pipes of different specifications, improving the effectiveness of the straightening mechanism, but also prevents the second belt from loosening after prolonged use, thus preventing one of the first straightening rollers from failing to rotate properly, thereby extending the service life of the straightening mechanism. Furthermore, it prevents the straightening mechanism from shifting during use, improving its stability.

[0004] Although the above technical solutions have many benefits, they cannot adjust the tension of two belts at the same time, and the lead screw needs to bear the pressure from the tension of the belts at all times, which can easily lead to the lead screw rotating unexpectedly when it is stationary. Utility Model Content

[0005] The purpose of this utility model is to provide a straightening mechanism for small-diameter straight seam welded pipes, so as to solve the technical problem of easy rotation of the lead screw during the above-mentioned straightening process.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A straightening mechanism for small-diameter straight seam welded pipe includes a frame. Two motors are fixedly installed on the front wall of the frame. Multiple straightening rollers are symmetrically arranged and rotatably connected in the frame. Each straightening roller has a pulley fixedly connected to its output end. Adjacent pulleys are connected by a belt for common transmission.

[0008] The frame is equipped with an adjustment mechanism, which includes an installation slot and a receiving slot. A double-acting lead screw is rotatably connected inside the installation slot. A rotating handle is fixedly connected to the top of the double-acting lead screw. Multiple abutment slots are opened at the bottom of the rotating handle. Symmetrically arranged moving blocks are slidably connected inside the installation slot. Pressure rollers are rotatably connected to each moving block. A lifting plate is slidably connected inside the receiving slot. Abutment rods are fixedly connected to the top of the lifting plate at the positions corresponding to the abutment slots. A spring is fixedly connected to the bottom of the receiving slot.

[0009] As a preferred embodiment of this utility model, the output end of the motor is fixedly connected to one end of the output end of the corresponding straightening roller.

[0010] As a preferred embodiment of this utility model, the mounting groove is located in the middle of the front wall of the frame, and the receiving groove is located in the middle of the top of the front wall of the frame.

[0011] As a preferred embodiment of this utility model, the top of the bidirectional lead screw rotates through the frame, the receiving groove and the lifting plate, and the bidirectional lead screw is threadedly connected to two moving blocks.

[0012] As a preferred embodiment of this utility model, the top of each abutment rod is spherically shaped and movably connected to the corresponding abutment groove. The top of the spring is fixedly connected to the bottom of the lifting plate.

[0013] Compared with the prior art, the beneficial effects of the small-diameter straight seam welded pipe straightening mechanism of this utility model are as follows: the adjustment mechanism can adjust the tension of the upper and lower belts at the same time, which is more convenient to adjust. Moreover, the fixation of the spring and the abutment rod can provide stability for the position of the rotating handle and the bidirectional lead screw, and prevent the bidirectional lead screw from being subjected to excessive pressure and causing accidental rotation. Attached Figure Description

[0014] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only examples of embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model;

[0016] Figure 2 This is a cross-sectional view of the support base in an embodiment of the present invention;

[0017] Figure 3 for Figure 2 Enlarged structural diagram at point A in the middle;

[0018] Figure 4 This is a schematic diagram of the bottom structure of the rotating handle in an embodiment of this utility model.

[0019] Reference numerals in the attached drawings: 1. Frame; 2. Motor; 3. Straightening roller; 4. Pulley; 5. Belt; 6. Adjustment mechanism; 61. Mounting groove; 62. Receiving groove; 63. Bidirectional lead screw; 64. Rotating handle; 65. Abutment groove; 66. Moving block; 67. Pressure roller; 68. Lifting plate; 69. Abutment rod; 601. Spring. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are only for explaining the present invention and are not intended to limit the present invention.

[0021] In the description of the embodiments of the present invention, it should be understood that the terms "upper", "lower", "front", "rear", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of the present invention.

[0022] In the description of the embodiments of the present invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation", "connection" and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, an integral connection, or a detachable connection; they can refer to the internal connection of two components; they can refer to a direct connection or an indirect connection through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in the embodiments of the present invention should be understood according to the specific circumstances.

[0023] See Figure 1-4 This utility model provides a straightening mechanism for small-diameter straight seam welded pipes, including a frame 1. Two motors 2 are fixedly installed on the front wall of the frame 1. Multiple straightening rollers 3 are symmetrically arranged and rotatably connected in the frame 1. Each straightening roller 3 has a pulley 4 fixedly connected to its output end. Adjacent pulleys 4 are connected by a belt 5 for common transmission. The output ends of the motors 2 are fixedly connected to one end of the corresponding straightening roller 3.

[0024] When in use, start the two motors 2. The motors 2 drive the corresponding straightening rollers 3 to rotate. The rotation of the straightening rollers 3 drives the pulleys 4 to rotate. The rotation of the pulleys 4 will drive the other pulleys 4 to rotate through the belt 5. The pulleys 4 drive the corresponding straightening rollers 3 to rotate. At this time, the simultaneous rotation of multiple straightening rollers 3 can place the straight seam welded pipe between the upper and lower straightening rollers 3 for straightening.

[0025] The frame 1 is equipped with an adjustment mechanism 6, which includes an installation groove 61 and a receiving groove 62. A bidirectional lead screw 63 is rotatably connected inside the installation groove 61. A rotating handle 64 is fixedly connected to the top of the bidirectional lead screw 63. Multiple abutment grooves 65 are opened at the bottom of the rotating handle 64. A symmetrically arranged moving block 66 is slidably connected inside the installation groove 61. A pressure roller 67 is rotatably connected to each moving block 66. A lifting plate 68 is slidably connected inside the receiving groove 62. Abutment rods 69 are fixedly connected to the top of the lifting plate 68 at the positions corresponding to the abutment grooves 65. A spring 601 is fixedly connected to the bottom of the receiving groove 62.

[0026] The mounting slot 61 is located in the middle of the front wall of the frame 1, and the receiving slot 62 is located in the middle of the top of the front wall of the frame 1. The top of the double-acting screw 63 rotates through the frame 1, the receiving slot 62 and the lifting plate 68. The double-acting screw 63 is threadedly connected to two moving blocks 66. The tops of the abutting rods 69 are all spherical and are movably connected to the corresponding abutting slots 65. The top of the spring 601 is fixedly connected to the bottom of the lifting plate 68.

[0027] In use, when the belt 5 becomes loose due to prolonged use, rotating the handle 64 causes the abutment groove 65 and the abutment rod 69 to abut against each other. At this time, the abutment rod 69 will move downward under the pressure of the abutment groove 65. The downward movement of the abutment rod 69 will drive the lifting plate 68 to move downward in the receiving groove 62. The downward movement of the lifting plate 68 will compress and contract the spring 601. As the handle 64 is rotated, the lifting plate 68 and the abutment rod 69 will repeatedly bounce up and down due to the spring 601. The rotation of the handle 64 will also drive the bidirectional lead screw 63 to rotate. When the bidirectional lead screw 63 rotates, it drives two moving blocks 66 to move simultaneously towards the center in the mounting groove 61. The movement of the moving blocks 66 drives the pressure roller 67 to abut against the belt 5, so that the belt 5 moves together with the pressure roller 67, thereby tightening the belt 5 and preventing the transmission stability of the belt 5 from being reduced due to slack. The cooperation of the spring 601, the lifting plate 68, the abutting rod 69 and the abutting groove 65 can increase the pressure required for the bidirectional lead screw 63 and the rotating handle 64 to rotate, thereby improving the stability of the bidirectional lead screw 63.

[0028] The foregoing has shown and described the basic principles of the present invention. The above are merely 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 illustrative of the principles of the present invention. Any modifications, equivalent substitutions, and improvements made within the scope of the present invention without departing from the scope of the present invention should be included within the protection scope of the present invention.

Claims

1. A straightening mechanism for small-diameter straight seam welded pipe, comprising a frame (1), two motors (2) are fixedly installed on the front wall of the frame (1), and a plurality of straightening rollers (3) are rotatably connected in the frame (1), and pulleys (4) are fixedly connected to the output ends of the straightening rollers (3), and belts (5) are connected to adjacent pulleys (4) for common transmission. Its features are: The frame (1) is provided with an adjustment mechanism (6), which includes an installation groove (61) and a receiving groove (62). A bidirectional lead screw (63) is rotatably connected inside the installation groove (61). A rotating handle (64) is fixedly connected to the top of the bidirectional lead screw (63). Multiple abutment grooves (65) are opened at the bottom of the rotating handle (64). A symmetrically arranged moving block (66) is slidably connected inside the installation groove (61). A pressure roller (67) is rotatably connected to each moving block (66). A lifting plate (68) is slidably connected inside the receiving groove (62). An abutment rod (69) is fixedly connected to the top of the lifting plate (68) at the position corresponding to the abutment groove (65). A spring (601) is fixedly connected to the bottom of the receiving groove (62).

2. The straightening mechanism for small-diameter straight seam welded pipes according to claim 1, characterized in that: The output end of each motor (2) is fixedly connected to one end of the output end of the corresponding straightening roller (3).

3. The straightening mechanism for small-diameter straight seam welded pipes according to claim 1, characterized in that: The mounting slot (61) is located in the middle of the front wall of the frame (1), and the receiving slot (62) is located in the middle of the top of the front wall of the frame (1).

4. The straightening mechanism for small-diameter straight seam welded pipes according to claim 1, characterized in that: The top end of the bidirectional lead screw (63) rotates through the frame (1), the receiving groove (62) and the lifting plate (68), and the bidirectional lead screw (63) is threadedly connected to two moving blocks (66).

5. A straightening mechanism for small-diameter straight seam welded pipes according to claim 1, characterized in that: The top of each abutment rod (69) is spherical, and the top of each abutment rod (69) is movably connected inside the corresponding abutment groove (65). The top of the spring (601) is fixedly connected to the bottom of the lifting plate (68).

Images