A straightening rack type pinch roll device

By using a straightening rack and pinion clamping roller device to release the steel pipe through the gap between the clamping kit and the support plate, the problems of complex structure and high cost of existing roller feeding devices are solved, and a simple and safe steel pipe conveying is realized.

CN121060983BActive Publication Date: 2026-07-24ZHEJIANG SANJI STEEL TUBE CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
ZHEJIANG SANJI STEEL TUBE CO LTD
Filing Date
2025-09-25
Publication Date
2026-07-24

AI Technical Summary

Technical Problem

The existing roller feeding device uses an electric drive to power a gear structure to separate and transport individual steel pipes, which is complex and costly.

Method used

A straightening rack and pinion clamping roller device is adopted. The first drive motor drives the pull rope to pull the clamping kit, releasing the steel pipes in sequence. The steel pipes are separated by the gap between the clamping kit and the support plate, which simplifies the structure and reduces costs.

Benefits of technology

It enables easy release of steel pipes, simplifies the structure, reduces costs, improves space utilization, prevents steel pipes from falling and causing injury or damage, and is easy to operate and highly safe.

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Abstract

This invention discloses a straightening rack-and-pinion clamping roller device, comprising: a frame, a support cylinder mounted on the frame, a feeding mechanism mounted on one side of the support cylinder, the feeding mechanism including an inlet mechanism and a feeding frame, the feeding frame including a rear support plate located near the support cylinder and a front support plate located away from the support cylinder, the front support plate being provided with a detachable clamping kit, a gap between the rear support plate and the front support plate, a first drive motor being provided below the front support plate, a rotating cylinder being mounted on the output shaft of the first drive motor, and a pull rope being mounted on the rotating cylinder. In this invention, the rotation of the first drive motor drives the pull rope to pull, causing the clamping kit to release steel pipes one by one sequentially. No additional large gear structure is required; the release of steel pipes can be completed relying on the clamping kit itself and the gap between the rear and front support plates. Its operation is simple and its structure is straightforward.
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Description

Technical Field

[0001] This invention relates to the field of straightening rack and pinion pinch roller devices, and more specifically to a straightening rack and pinion pinch roller device. Background Technology

[0002] Currently, drawing machines are devices used to draw metal materials. By drawing, the diameter of the metal material is changed to achieve the required diameter. Through various drawing methods such as coreless drawing and through-the-core drawing, and by changing the die, bars and tubes of various specifications and diameters can be drawn. Drawing machines, facing the issue of using steel pipe conveying devices, inevitably require a roller feeding device.

[0003] Currently, the roller feeding device generally uses a belt device to transport multiple steel pipes at a time. Therefore, it is necessary to drive an electric motor to drive a gear structure to separate the steel pipes one by one and transport them to the drawing equipment. This structure is complex and costly. Summary of the Invention

[0004] To address the aforementioned problems, this invention proposes a straightening rack and pinion type clamping roller device, which solves the shortcomings of existing roller feeding devices that use electric drive to power gears to separate steel pipes and transport them to the drawing equipment, resulting in complex structures and high costs.

[0005] The technical solution adopted in this invention is as follows: A straightening rack-and-pinion clamping roller device includes: a frame, a support cylinder mounted on the frame, a feeding mechanism mounted on one side of the support cylinder, the feeding mechanism including an inlet mechanism and a feeding frame, the feeding frame including a rear support plate located near the support cylinder and a front support plate located away from the support cylinder, a detachable clamping kit provided on the front support plate, a gap between the rear support plate and the front support plate, a first drive motor located below the front support plate, a rotating cylinder mounted on the output shaft of the first drive motor, a pull rope mounted on the rotating cylinder, the pull rope being detachably connected to the clamping kit for opening the clamping kit to release steel pipes one by one sequentially. In this invention, the rotation of the first drive motor drives the pull rope to pull, causing the clamping kit to release steel pipes one by one sequentially. It eliminates the need for additional large gear structures and transmission belt structures, relying solely on the clamping kit itself and the gap between the rear and front support plates to complete the release of steel pipes. It is simple to operate, has a simple structure, and high space utilization.

[0006] Optionally, the horizontal height of the front support plate is greater than the horizontal height of the rear support plate.

[0007] Optionally, the clamping kit includes an upper clamp and a lower clamp, both of which are provided with protrusions. Adjacent protrusions form grooves to facilitate the installation of steel pipes. Each protrusion is provided with an air bladder, which is inflated by gas to ensure that adjacent protrusions clamp the steel pipes.

[0008] Optionally, one end of the upper and lower clips is connected by a first connector, and the other end of the upper and lower clips is connected by a second connector, with the bottom of the second connector being detachably connected to the lower clip.

[0009] Optionally, the second connector is provided with a first magnetic element at its top, and the upper sleeve is provided with a second magnetic element on the side opposite to the top of the second connector.

[0010] Optionally, both the upper and lower jackets are made of flexible plastic material. The airbags of the upper and lower jackets are evenly distributed and arranged face-to-face. The two ends of each airbag have an interface. One of the interfaces of the upper jacket airbag is connected to the interface of the lower jacket airbag via a detachable connecting air tube.

[0011] Optionally, a third magnetic element is provided at the bottom of the lower sleeve.

[0012] Optionally, the support cylinder includes a rotatable upper cylinder and a fixed lower cylinder. The lower cylinder has multiple slots, and a drive mechanism is installed below the slots. The drive mechanism includes a rotating roller and a second drive motor that is connected to the rotating roller for transmission.

[0013] Optionally, there are multiple rear support plates arranged in parallel. The guiding mechanism includes a rotating shaft installed below the rear support plates, and a guiding plate arranged in parallel with the rear support plates is mounted on the rotating shaft. A third drive motor is mounted at both ends of the rotating shaft, and the guiding plate is located between two adjacent rear support plates.

[0014] Optionally, the inlet plate includes an inlet end, the outer side of the inlet end is an arc surface, and the inner side of the inlet end is provided with an inclined surface.

[0015] In summary, the present invention has the following beneficial effects: 1. In this invention, the first drive motor rotates to drive the pull rope, so that the clamping kit releases the steel pipes one by one in sequence. No additional large gear structure is required. The release of the steel pipes can be completed by relying on the clamping kit itself and the gap between the rear support plate and the front support plate. It is easy to operate, simple in structure, and has high space utilization.

[0016] 2. In this invention, the clamping kit wraps around the steel pipe, which can prevent the steel pipe from falling and injuring the operator or damaging the surface of the steel pipe, thus preventing deformation of the steel pipe surface.

[0017] 3. In this invention, the outer surface of the inlet end is an arc surface, and the inner surface of the inlet end is provided with an inclined surface. The inclined surface facilitates the lifting of the previous steel pipe, and the arc surface can also separate and block the next steel pipe.

[0018] 4. The horizontal height of the front support plate of this invention is greater than that of the rear support plate, which facilitates the movement of the steel pipe from the front support plate to the rear support plate.

[0019] 5. The clamping kit used in this invention has a simple structure, is made of PVE material, and is inexpensive. Attached Figure Description

[0020] Figure 1 This is a perspective structural diagram of the straightening rack and pinion roller device according to Embodiment 1 of the present invention; Figure 2 This is a rear structural diagram of the frame of the straightening rack-and-pinion pinch roller device according to Embodiment 1 of the present invention; Figure 3 This is an assembly structure diagram of the clamping kit of the straightening rack-type pinch roller device according to Embodiment 1 of the present invention.

[0021] Figure 4 This is the straightening rack-and-pinion pinch roller device of Embodiment 1 of the present invention. Figure 3 A magnified view of part A.

[0022] The labels for the attached figures are as follows: 1. Inlet mechanism, 2. Feeding rack, 3. Rear support plate, 4. Front support plate, 5. Clamping kit, 6. First drive motor, 7. Rotating cylinder, 8. Pull rope, 9. Upper clamp, 10. Lower clamp, 11. Protrusion, 12. Groove, 13. Airbag, 14. First magnetic component, 15. Second magnetic component, 16. Interface, 17. Upper cylinder, 18. Lower cylinder, 19. Slot, 20. Drive mechanism, 21. Rotating roller, 22. Second drive motor, 23. Rotating shaft, 24. Inlet plate, 25. Third drive motor, 26. Inlet end, 27. Arc surface, 28. Inclined surface, 29. Limiting component, 30. Third magnetic component, 31. Connecting air pipe, 32. First connector, 33. Second connector, 34. Pull buckle, 100. Frame, 200. Support cylinder, 300. Feeding mechanism. Detailed Implementation

[0023] The specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the invention.

[0024] In the description of this invention, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the 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, and therefore should not be construed as a limitation of the invention. Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" or "linked" should be interpreted broadly, for example, it can be a detachable connection, or an integral connection; it can be a mechanical connection, a direct connection, or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0025] Example 1 The technical solution adopted in this invention is as follows: like Figure 1 As shown, the present invention discloses a straightening rack-and-pinion clamping roller device, comprising: a frame 100, a support cylinder 200 mounted on the frame, a feeding mechanism 300 mounted on one side of the support cylinder, the feeding mechanism including an inlet mechanism 1 and a feeding rack 2, the feeding rack including a rear support plate 3 located near the support cylinder and a front support plate 4 located away from the support cylinder, the front support plate being provided with a detachable clamping kit 5, a gap between the rear support plate and the front support plate, a first drive motor 6 being provided below the front support plate, a rotating cylinder 7 mounted on the output shaft of the first drive motor, a pull rope 8 mounted on the rotating cylinder, the pull rope being detachably connected to the clamping kit for opening the clamping kit to release steel pipes one by one in sequence.

[0026] In this embodiment, the horizontal distance between the front support plate and the rear support plate is less than 30% of the diameter of the steel pipe and greater than the width of the pull rope, so as to ensure that the steel pipe can roll smoothly from the front support plate to the rear support plate.

[0027] like Figure 3 As shown, the clamping kit includes an upper clamp 9 and a lower clamp 10. Both the upper and lower clamps are provided with protrusions 11. Adjacent protrusions form grooves 12 to facilitate the installation of steel pipes. An air bladder 13 is provided in the protrusion. The air bladder is inflated by gas to ensure that the adjacent protrusions clamp the steel pipes.

[0028] like Figure 4As shown, one end of the upper and lower clips is connected by a first connector 32, and the other end of the upper and lower clips is connected by a second connector 33. The bottom of the second connector is detachably connected to the lower clip. The top of the second connector is provided with a pull buckle 34.

[0029] The second connector has a first magnetic element 14 on its top, and the upper sleeve has a second magnetic element 15 on the side opposite the top of the second connector.

[0030] Both the upper and lower jackets are made of flexible plastic. The airbags in the upper and lower jackets are evenly distributed and arranged face-to-face. Each airbag has an external interface 16 at both ends. One interface of the upper jacket airbag is connected to the interface of the lower jacket airbag via a detachable connecting air tube 31. The gas filling the airbags is greater than 1.5 atmospheres, typically 1.5-2.0 atmospheres.

[0031] In this embodiment, the upper and lower jackets are made of PVE material, which is inexpensive.

[0032] like Figure 2 As shown, the support cylinder includes a rotatable upper cylinder 17 and a fixed lower cylinder 18. The lower cylinder has multiple slots 19, and a drive mechanism 20 is installed below the slots. The drive mechanism includes a rotating roller 21 and a second drive motor 22 that is connected to the rotating roller. A first gear is mounted on the output shaft of the second drive motor, and a second gear is mounted on the drive roller. The first gear and the second gear are connected by a drive belt.

[0033] In this embodiment, the second drive motor drives the transmission roller to move, thereby causing the steel pipe to move laterally.

[0034] The rear support plates are multiple and arranged in parallel. The guiding mechanism includes a rotating shaft 23 installed below the rear support plates. A guiding plate 24 arranged in parallel with the rear support plates is mounted on the rotating shaft. A third drive motor 25 is mounted at both ends of the rotating shaft. The guiding plate is located between two adjacent rear support plates.

[0035] In this embodiment, multiple guide plates lift the steel pipe together to prevent it from tipping over.

[0036] The inlet plate includes an inlet end 26, the outer side of the inlet end is an arc surface 27, and the inner side of the inlet end is provided with an inclined surface 28.

[0037] In this embodiment, the top surface of the rear support plate is provided with a limiting member 29, which is used to restrict the steel pipe and stop it behind the inclined surface of the inlet end. In this embodiment, the limiting member is a non-protruding rectangular structure.

[0038] In this embodiment, the first drive motor drives the pull rope to move, which in turn moves the clamping assembly. The lower clamp is pulled into the gap between the front and rear support plates. Here, each connecting air pipe is pulled open in sequence according to the front and rear order of the clamping assembly, causing the gas in the airbag to be released. The upper clamp separates from the lower clamp. Due to the release of gas from the airbag, the protrusion near the support cylinder disappears. The steel pipe smoothly passes through the gap between the rear and front support plates, rolls onto the rear support plate, and is restricted by the limiting member, stopping it behind the inclined surface of the inlet end. The third drive motor drives the inlet plate to move, causing the steel pipe to pass over the limiting member and enter the lower cylinder. The second drive motor drives the transmission roller to move the steel pipe laterally.

[0039] Example 2 The difference between Example 2 and Example 1 is that the horizontal height of the front support plate is greater than that of the rear support plate.

[0040] In this embodiment, the horizontal height of the front support plate is greater than that of the rear support plate, which facilitates the movement of the steel pipe from the front support plate to the rear support plate.

[0041] Example 3 The difference between Example 3 and Example 1 is that the bottom of the lower sleeve is provided with a third magnetic element 30, and the rear support plate is made of steel.

[0042] In this embodiment, the lower clamping sleeve is attached to the rear support plate by a third magnetic component to prevent the clamping kit from slipping off.

[0043] The above description is merely a preferred embodiment of the present invention and does not limit the scope of patent protection of the present invention. Any equivalent structural transformations made based on the description and drawings of the present invention, whether directly or indirectly applied to other related technical fields, are similarly included within the scope of protection of the present invention.

Claims

1. A straightening rack-and-pinion type pinch roller device, characterized in that, include: A frame is provided, on which a support cylinder is mounted. A feeding mechanism is mounted on one side of the support cylinder. The feeding mechanism includes an inlet mechanism and a feeding rack. The feeding rack includes a rear support plate located near the support cylinder and a front support plate located away from the support cylinder. A detachable clamping kit is provided on the front support plate. A first drive motor is provided below the front support plate. There is a gap between the rear support plate and the front support plate. A rotating cylinder is mounted on the output shaft of the first drive motor. A pull rope is mounted on the rotating cylinder. The pull rope is detachably connected to the clamping kit and is used to open the clamping kit to release steel pipes one by one in sequence. The clamping kit includes an upper clamp and a lower clamp. Both the upper and lower clamps are provided with protrusions. Adjacent protrusions form grooves to facilitate the installation of steel pipes. An air bladder is provided in the protrusion. The air bladder is inflated by gas to clamp the adjacent protrusions with the steel pipes. One end of the upper and lower clips is connected by a first connector, and the other end of the upper and lower clips is connected by a second connector. The bottom of the second connector is detachably connected to the lower clip. The second connector has a first magnetic element at its top, and the upper sleeve has a second magnetic element on the side facing the top of the second connector. Both the upper and lower jackets are made of flexible plastic. The airbags in the upper and lower jackets are evenly distributed and arranged one above the other. Each airbag has an interface at both ends. One of the interfaces of the upper jacket airbag is connected to the interface of the airbag opposite the lower jacket via a detachable connecting air tube. The support cylinder includes a rotatable upper cylinder and a fixed lower cylinder. The lower cylinder has multiple slots. A drive mechanism is installed below the slots. The drive mechanism includes a rotating roller and a second drive motor that is connected to the rotating roller.

2. The straightening rack-and-pinion pinch roller device as described in claim 1, characterized in that, The horizontal height of the front support plate is greater than that of the rear support plate.

3. The straightening rack-and-pinion pinch roller device as described in claim 1, characterized in that, The bottom of the lower sleeve is provided with a third magnetic element.

4. A straightening rack-and-pinion pinch roller device as described in claim 1 or 2, characterized in that, The rear support plates are multiple and arranged in parallel. The guiding mechanism includes a rotating shaft installed below the rear support plates, and a guiding plate arranged in parallel with the rear support plates is mounted on the rotating shaft. A third drive motor is mounted at both ends of the rotating shaft, and the guiding plate is located between two adjacent rear support plates.

5. A straightening rack-and-pinion pinch roller device as described in claim 4, characterized in that, The inlet plate includes an inlet end, the outer side of which is an arc surface, and the inner side of which is an inclined surface.

Citation Information

Patent Citations

  • CN112090997A

  • CN215785740U