Pipe traction machine
By adopting the design of limiting components and cylinder drive in the pipe traction machine, the deformation problem caused by unstable clamping of hollow pipes is solved, and an efficient and stable pipe traction process is achieved, which improves production quality.
Patent Information
- Application Number
- CN202422373216.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-28
- Publication Date
- 2025-08-26
- Estimated Expiration
- 2034-09-28
AI Technical Summary
Existing fixtures cannot effectively clamp hollow pipes, especially large-scale/thin products, resulting in deformation and damage to the pipes and poor control of the extension direction, affecting production quality.
A pipe traction machine is designed, adopting a limiting assembly including a fixed rod and a moving rod. It is connected by a spring. The limiting plate is in an inverted eight-shaped shape, and the position is automatically adjusted to maintain perpendicular to the direction of the conveying roller. Combined with the cylinder driving the conveying and pressing roller, stable nip and direction control are achieved.
The quality and efficiency of pipe traction is improved, ensuring that the pipe does not deform during the traction process, and improving the stability and applicability of production.
Smart Images
Figure CN223266229U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of pipe processing, in particular to a pipe traction machine. Background Art
[0002] The pipe production process includes forming, clamping and traction, and cutting. Currently, clamping and traction generally use two methods: crawler clamping or hydraulic reciprocating alternating clamping. Crawler clamping has the advantages of simple structure and large clamping area. It is often used for solid small-sized pipes, but it is not suitable for hollow pipes, especially large-sized and thin products.
[0003] For hollow pipes, a hydraulic reciprocating alternating clamping and traction method is often used. It requires the use of a clamp of corresponding specifications for matching clamping and meeting the traction requirements of stable clamping. However, existing clamps are often made of integral nylon or iron rubber, which cannot withstand large clamping forces during use. Stress concentration is prone to occur during the clamping process, leading to deformation and damage of the pipe. In addition, during the traction process of the pipe, the direction of the pipe extension cannot be well controlled, affecting the production quality of the pipe. Utility Model Content
[0004] In order to overcome the deficiencies of the prior art, the utility model provides a pipe pulling machine which is highly practical and has good use effects.
[0005] In order to achieve the above objectives, the present invention provides the following technical solutions:
[0006] A pipe traction machine includes a mounting base, on which a conveying roller unit, a support frame and a limit assembly are provided. A first cylinder and a second cylinder are fixedly provided on the mounting base, and the first cylinder drives the conveying roller unit to move up and down relative to the mounting base. A pressure roller unit is provided on the mounting base above the conveying roller, and the pressure roller unit corresponds to the conveying roller in the vertical direction. A support frame is provided on the mounting base below the conveying roller unit, and a fixed plate is provided on the support frame. The fixed plate is arranged perpendicular to the conveying direction of the conveying roller unit, and the fixed plate and the support frame are slidingly connected perpendicular to the conveying direction of the conveying roller unit. The limit assembly is fixedly provided on the fixed plate, and the second cylinder drives the support frame to move up and down relative to the mounting base.
[0007] This technical solution is further optimized. The conveying roller unit includes a mounting frame and a conveying roller. The first cylinder drives the mounting frame to move up and down relative to the mounting seat. The conveying roller is rotatably installed on the mounting frame. The conveying rollers are arranged at equal distances along the mounting frame in the same direction. A first motor is fixedly installed on the mounting frame. The first motor is correspondingly connected to a conveying roller for transmission, and two adjacent conveying rollers are connected through a conveyor belt transmission.
[0008] This technical solution is further optimized. The limit assembly is staggered with the conveying roller in the vertical direction. The limit assembly includes a fixed rod and a movable rod. The lower end of the fixed rod is fixedly connected to the fixed plate. An installation groove is provided on the upper end surface of the fixed rod. The lower end of the movable rod extends into the installation groove and is connected to the installation groove for upward and downward sliding. The movable rod moves up and down relative to the fixed rod. A spring is fixedly connected to the lower end of the movable rod, and the spring is fixedly connected to the bottom of the installation groove. Two limit plates are fixedly provided on the upper end of the movable rod, and the two limit plates form an inverted figure eight shape.
[0009] Further optimization of this technical solution also includes a connecting plate, a limit plate arranged at equal distances along the extension direction of the fixed plate, the connecting plate is arranged between two adjacent fixed rods, and the connecting plate is arranged parallel to the fixed plate, and the two ends of the connecting plate respectively pass through the fixed rods located at both ends and extend into the installation groove, and the end of the connecting plate is fixedly connected to the movable rod.
[0010] This technical solution is further optimized in that ball grooves are evenly provided on opposite sides of the two limit plates, and balls are movably installed in the ball grooves.
[0011] This technical solution is further optimized. The pressure roller unit includes a fixed frame, a third cylinder, a second motor and a pressure roller. The third cylinder is fixedly arranged above the mounting seat. The third cylinder drives the fixed frame to move up and down. The pressure roller is rotatably installed on the fixed frame. The pressure roller is arranged parallel to the conveying roller, and the pressure roller and the conveying roller are arranged corresponding to each other in the vertical direction. The second motor is fixedly arranged on the fixed frame. The second motor is correspondingly connected to a pressure roller for transmission, and two adjacent pressure rollers are connected for transmission.
[0012] This technical solution is further optimized. A slide groove is opened on the support frame, and the slide groove is set parallel to the conveying roller. A slider is fixedly connected to the bottom of the fixed plate. The slider extends into the slide groove and is slidingly connected to it. A ball bearing is movably connected to the bottom surface of the slider.
[0013] Compared with the prior art, the present invention has the following advantages: by providing a limit assembly, the limit assembly is arranged on a fixed plate, and the fixed plate can flexibly move relative to the support frame. In addition, by providing a fixed rod and a movable rod, the two are connected by a spring. Therefore, when the limit plate moves upward to contact the pipe, the limit plate can automatically adjust its position during the upward movement, so that the limit plate is symmetrically arranged relative to the pipe. The two limit plates arranged in an inverted figure eight shape can always extend perpendicularly to the conveyor roller during the continuous forward extrusion of the pipe. This greatly improves the traction quality and efficiency of the pipe, and has excellent practicality and applicability. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 This is a schematic diagram of the cross-sectional structure of the pipe traction machine;
[0015] Figure 2This is a schematic diagram of the cross-sectional structure of the pipe traction machine's limiting assembly;
[0016] In the figure: third cylinder 1, fixed frame 2, pressure roller 3, mounting frame 4, conveying roller 5, support frame 6, second cylinder 7, fixed plate 8, slider 9, first cylinder 10, fixed rod 11, moving rod 12, limit plate 13, mounting seat 14, first motor 15. DETAILED DESCRIPTION
[0017] In order to explain the technical content, structural features, achieved objectives and effects of the technical solution in detail, the following is a detailed description in conjunction with specific embodiments and accompanying drawings.
[0018] See Figure 1 and Figure 2 As shown, a pipe traction machine includes a mounting base 14, on which a conveying roller 5 unit and a limiting assembly are provided. A first cylinder 10 and a second cylinder 7 are fixedly provided on the mounting base 14, and the first cylinder 10 drives the conveying roller 5 unit to move up and down relative to the mounting base 14.
[0019] The conveyor roller 5 unit comprises a mounting frame 4 and conveyor rollers 5. A first cylinder 10 drives the mounting frame 4 up and down relative to a mounting base 14. The conveyor rollers 5 are rotatably mounted on the mounting frame 4. The conveyor rollers 5 are equidistantly spaced along the mounting frame 4 in the same direction and positioned on the same horizontal line. A first motor 15 is fixedly mounted on the mounting frame 4 and is in transmission connection with each conveyor roller 5. Adjacent conveyor rollers 5 are connected via a conveyor belt.
[0020] A pressure roller 3 unit is mounted on the mounting base 14 above the conveyor roller 5. The pressure roller 3 unit comprises a fixed frame 2, a third cylinder 1, a second motor, and the pressure roller 3. The third cylinder 1 is fixedly mounted above the mounting base 14 and drives the fixed frame 2 to move up and down, allowing the pressure roller 3 to be rotatably mounted on the fixed frame 2. The pressure roller 3 is arranged parallel to the conveyor roller 5 and vertically aligned with the conveyor roller 5. A second motor is fixedly mounted on the fixed frame 2 and is transmission-connected to one pressure roller 3. Adjacent pressure rollers 3 are also transmission-connected to each other.
[0021] A support frame 6 is mounted on the mounting base 14, below the conveyor roller 5. A slide groove is defined on the support frame 6 and arranged parallel to the conveyor roller 5. A slider 9 is fixedly connected to the underside of the fixed plate 8. The slider 9 extends into the slide groove and slides therein. A ball bearing is movably connected to the underside of the slider 9. The fixed plate 8 is positioned perpendicular to the conveying direction of the conveyor roller 5. A limit assembly is fixed to the fixed plate 8. A second cylinder 7 drives the support frame 6 to move up and down relative to the mounting base 14.
[0022] The limiting assembly is vertically staggered with the conveyor roller 5. The limiting assembly includes a fixed rod 11 and a movable rod 12. The lower end of the fixed rod 11 is fixedly connected to the fixed plate 8. A mounting slot is defined on the upper end of the fixed rod 11. The lower end of the movable rod 12 extends into the mounting slot and is connected to the mounting slot for upward and downward sliding movement. The movable rod 12 can move up and down relative to the fixed rod 11. A spring is fixedly connected to the lower end of the movable rod 12, which is fixedly connected to the bottom of the mounting slot. Two limiting plates 13 are fixedly mounted on the upper end of the movable rod 12, forming an inverted figure eight shape. Ball grooves are evenly disposed on the opposing sides of the two limiting plates 13, and balls are movably mounted in the ball grooves.
[0023] When the present invention is in use, when the pipe extruder extrude the pipe, the position of the fixed plate 8 is adjusted so that the pipe can be located between the two limit plates 13, and then the second cylinder 7 is started, so that the second cylinder 7 drives the support frame 6 to move upward, thereby driving the limit assembly to move upward. As the limit assembly moves upward, the extruded pipe can pass between the two limit plates 13 and contact them. Since the two limit plates 13 are in an inverted eight-shaped shape, as the limit plates 13 continue to move upward after contacting the pipe, the limit assembly adapts to the placement position of the pipe and follows the fixed plate 8 to move in a direction parallel to the conveyor roller 5 until the two limit plates 13 are symmetrical with respect to the pipe. By using the two limit plates 13 arranged in an inverted eight-shaped shape, the pipe can always be extended perpendicularly to the conveyor roller 5 during the process of continuous forward extrusion of the pipe. The first cylinder 10 and the first motor 15 can be started. The first motor 15 drives the transmission roller to rotate, and the first cylinder 10 drives the mounting frame 4 to move in the vertical direction, thereby adjusting the position of the transmission roller 5 in the vertical direction, so that the transmission roller 5 contacts the bottom of the pipe from the pipe extruder.
[0024] At the same time, the third cylinder 1 and the second motor are started. The second motor drives the pressure roller 3 to rotate. The first cylinder 10 drives the fixed frame 2 to drive the pressure roller 3 to move downward until it contacts the top of the pipe. Then the pressure roller 3 and the conveying roller 5 work together to drive the pipe forward. The limiting assembly serves to limit the extension direction of the pipe.
[0025] The present invention provides a limit assembly so that the limit assembly is disposed on the fixed plate 8, and the fixed plate 8 can flexibly move relative to the support frame 6. Furthermore, by providing a fixed rod 11 and a movable rod 12, the two are connected by a spring. Therefore, when the limit plate 13 moves upward to contact the pipe, the limit plate 13 can automatically adjust its position during the upward movement, so that the limit plates 13 are symmetrically arranged relative to the pipe. The two limit plates 13 arranged in an inverted figure eight shape can always extend perpendicularly to the direction of the conveyor roller 5 during the continuous forward extrusion of the pipe. This greatly improves the traction quality and efficiency of the pipe traction, and has excellent practicality and applicability.
[0026] It should be noted that, in this document, relational terms such as first and second, etc., are used solely to distinguish one entity or operation from another, and do not necessarily require or imply any actual relationship or order between these entities or operations. Furthermore, the terms "include," "comprise," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, article, or terminal device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or terminal device. Without further limitation, an element defined by the phrase "includes..." or "comprising..." does not exclude the presence of additional elements in the process, method, article, or terminal device comprising the element. Furthermore, in this document, "greater than," "less than," "exceeds," etc., are understood to exclude the number itself; "above," "below," "within," etc., are understood to include the number itself.
[0027] Although the above embodiments have been described, those skilled in the art may make additional changes and modifications to these embodiments once they know the basic creative concepts. Therefore, the above are merely embodiments of the present invention and do not limit the scope of patent protection of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the description and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the scope of patent protection of the present invention.
Claims
1. A pipe pulling machine, characterized in that: It includes a mounting base, on which a conveying roller unit, a support frame and a limit assembly are provided, a first cylinder and a second cylinder are fixedly provided on the mounting base, the first cylinder drives the conveying roller unit to move up and down relative to the mounting base, a pressure roller unit is provided on the mounting base above the conveying roller, and the pressure roller unit corresponds to the conveying roller in the vertical direction, a support frame is provided on the mounting base below the conveying roller unit, a fixed plate is provided on the support frame, the fixed plate is arranged perpendicular to the conveying direction of the conveying roller unit, and the fixed plate and the support frame are slidingly connected perpendicular to the conveying direction of the conveying roller unit, the limit assembly is fixedly provided on the fixed plate, and the second cylinder drives the support frame to move up and down relative to the mounting base.
2. The pipe pulling machine according to claim 1, characterized in that: The conveyor roller unit includes a mounting frame and a conveyor roller. The first cylinder drives the mounting frame to move up and down relative to the mounting seat. The conveyor roller is rotatably mounted on the mounting frame. The conveyor rollers are arranged at equal distances along the mounting frame in the same direction. A first motor is fixedly mounted on the mounting frame. The first motor is correspondingly connected to a conveyor roller for transmission, and two adjacent conveyor rollers are connected through a conveyor belt for transmission.
3. The pipe pulling machine according to claim 2, characterized in that: The limiting assembly is staggered with the conveying roller in the vertical direction, and the limiting assembly includes a fixed rod and a movable rod. The lower end of the fixed rod is fixedly connected to the fixed plate, and the upper end surface of the fixed rod is provided with a mounting groove. The lower end of the movable rod extends into the mounting groove and is connected to the mounting groove for upward and downward sliding. The movable rod moves up and down relative to the fixed rod, and the lower end of the movable rod is fixedly connected to a spring, and the spring is fixedly connected to the bottom of the mounting groove. Two limiting plates are fixedly provided on the upper end of the movable rod, and the two limiting plates form an inverted eight-shaped shape.
4. The pipe pulling machine according to claim 3, characterized in that: It also includes a connecting plate, the limiting plate is arranged at equal distances along the extension direction of the fixed plate, the connecting plate is arranged between two adjacent fixed rods, and the connecting plate is arranged parallel to the fixed plate, the two ends of the connecting plate respectively pass through the fixed rods at both ends and extend into the installation groove, and the end of the connecting plate is fixedly connected to the moving rod.
5. The pipe pulling machine according to claim 3, characterized in that: Ball grooves are evenly arranged on opposite sides of the two limiting plates, and balls are movably installed in the ball grooves.
6. The pipe pulling machine according to claim 2, characterized in that: The pressure roller unit includes a fixed frame, a third cylinder, a second motor and a pressure roller. The third cylinder is fixedly arranged above the mounting seat. The third cylinder drives the fixed frame to move up and down. The pressure roller is rotatably mounted on the fixed frame. The pressure roller is arranged parallel to the conveying roller, and the pressure roller and the conveying roller are arranged correspondingly in the vertical direction. The second motor is fixedly arranged on the fixed frame. The second motor is correspondingly connected to a pressure roller for transmission, and two adjacent pressure rollers are connected for transmission.
7. The pipe pulling machine according to claim 2, characterized in that: A slide groove is provided on the support frame and is arranged parallel to the conveying roller. A slider is fixedly connected to the bottom of the fixed plate. The slider extends into the slide groove and is slidingly connected to the slide groove. A ball bearing is movably connected to the bottom surface of the slider.