An uncoiling platform for an uncoiler used in steel pipe processing

Abstract

This utility model discloses an uncoiling platform for an uncoiler used in steel pipe processing, comprising: an uncoiling device, wherein a clamping device is fixedly connected to the outer wall of the top of the uncoiling device; this utility model relates to the field of steel pipe processing uncoiling technology. The uncoiling device and the clamping device, through a linkage structure of "bidirectional threaded rod - support block - support rod - spreading plate", achieve precise centering and stable clamping of the coil. The anti-slip pad on the outer wall of the spreading plate can significantly increase the friction with the inner hole of the coil, preventing relative sliding between the coil and the spreading plate during uncoiling, further ensuring the coaxiality of the coil uncoiling. Through the elastic holding structure of "compression spring - baffle - pulley group", a continuous and uniform holding force is provided for the material strip during the uncoiling process, which can also effectively offset the internal stress generated by the long-term coiling of the coil, suppress the tendency of the material strip to "bend upward", and ensure that the material strip is always transported to the subsequent process in a flat state.

Description

Technical Field

[0001] This utility model relates to the field of steel pipe processing and uncoiling technology, specifically to an uncoiling platform for a steel pipe processing uncoiling machine. Background Technology

[0002] In the steel pipe processing production process, the uncoiler is the core equipment connecting the storage of metal coils with subsequent forming and processing. The performance of its uncoiler platform directly determines the stability and accuracy of the material conveying, which in turn affects the quality and production efficiency of the finished steel pipe.

[0003] During long-term storage, metal coils are prone to "upward warping" or "wavy wrinkles" after unwinding due to the accumulation of internal stress. Although some traditional unwinding platforms are equipped with simple pressing structures, these structures are mostly rigid connections and cannot dynamically adjust the holding force according to the degree of warping of the strip. If the holding force is too small, it cannot effectively offset the internal stress of the strip, and the warping problem is still not solved. If the holding force is too large, it is easy to cause indentations or scratches on the surface of the strip. Especially for stainless steel strips with high surface requirements, it will directly affect the appearance quality of the finished steel pipe. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides an uncoiling platform for an uncoiler used in steel pipe processing, which solves the problem that traditional uncoiling platforms cannot dynamically adjust the holding force according to the degree of warping of the material strip.

[0005] To achieve the above objectives, this utility model provides the following technical solution: An uncoiling platform for a steel pipe processing uncoiling machine includes: an uncoiling device, a pressing device fixedly connected to the outer wall of the top of the uncoiling device; the uncoiling device includes a base, a support plate fixedly connected to the outer wall of the top of the base, a rotating shaft rotatably connected to the inner wall of the support plate, a servo motor rotatably connected to the outer wall of the rotating shaft, symmetrically formed grooves on the outer wall of the rotating shaft, a bidirectional threaded rod rotatably connected to the inner wall of the grooves, symmetrically formed support blocks on the outer wall of the bidirectional threaded rod, a support rod rotatably connected to the inner wall of the support block, a spreading plate rotatably connected to the outer wall of the support rod on the side away from the support block, and an anti-slip pad fixedly connected to the outer wall of the spreading plate.

[0006] Preferably, the outer wall of the servo motor is fixedly connected to the outer wall of the support plate, the outer wall of the support block is slidably connected to the inner wall of the slide groove, and the spreading plates are arranged in a ring array along the axis of rotation. Multiple sets of the ring array of spreading plates move synchronously in a direction away from the axis of rotation to facilitate support of the rolled material.

[0007] Preferably, the clamping device includes a support plate, a slide rod symmetrically slidably connected to the inner wall of the top of the support plate, a baffle fixedly connected to the outer wall of the bottom of the slide rod, a pulley group fixedly connected to the outer wall of the bottom of the baffle, a compression spring fixedly connected to the outer wall of the top of the baffle, a pull plate fixedly connected to the outer wall of the top of the slide rod, a positioning rod rotatably connected to the inner wall of the pull plate, a pull handle fixedly connected to the outer wall of the top of the positioning rod, and locking blocks symmetrically fixedly connected to the outer wall of the side of the positioning rod.

[0008] Preferably, the outer wall of the compression spring on the side away from the baffle is fixedly connected to the outer wall of the top of the support plate, the outer wall of the positioning rod is slidably connected to the inner wall of the top of the support plate, and the outer wall of the bottom of the locking block is in contact with the outer wall of the top of the support plate. When the pulley group is raised to a suitable height, the pull handle is rotated to drive the locking block fixed on the side of the positioning rod to rotate synchronously, so that the bottom of the locking block is in contact with the outer wall of the top of the support plate. At this time, the locking block provides support for the slide rod through the positioning rod and the pull plate, so that the pulley group is kept in the "raised state".

[0009] Preferably, the outer wall of the bottom of the support plate is fixedly connected to the outer wall of the top of the support plate, and the pulley group is set above the rotating shaft. The compression spring continuously provides downward pressure to the material belt to counteract the "upward warping tendency" of the material belt caused by the internal stress of the rolled material, thus ensuring that the material belt is transported flat.

[0010] This utility model provides an uncoiling platform for an uncoiler used in steel pipe processing. It has the following advantages: (i) The uncoiling device achieves precise centering and stable clamping of the coil material through the linkage structure of "bidirectional threaded rod - support block - support rod - spreading plate". The bidirectional threaded rod drives two sets of support blocks to move synchronously in opposite directions, which drives multiple sets of spreading plates arranged in a ring along the axis of rotation to spread outward evenly, ensuring that the force exerted by the spreading plates on the inner hole of the coil material is evenly distributed, so that the axis of the coil material and the axis of rotation are completely coincident. The anti-slip pad on the outer wall of the spreading plate can greatly increase the friction with the inner hole of the coil material, prevent relative sliding between the coil material and the spreading plate when uncoiling, and further ensure the coaxiality of the coil material when uncoiling.

[0011] (ii) The pressing device provides continuous and uniform pressing force to the material strip during the unwinding process through the elastic pressing structure of "compression spring-baffle-pulley block". When the compression spring is naturally extended, its elastic force pushes the baffle downward, so that the pulley block is pressed tightly against the surface of the material strip. Through rolling contact, it avoids scratching the surface of the material strip and effectively counteracts the internal stress generated by the long-term winding of the roll, suppresses the tendency of the material strip to "warp upward", and ensures that the material strip is always kept flat and transported to the subsequent process. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the structure of the unwinding device of this utility model; Figure 3 This is a schematic diagram of the structure of the bidirectional threaded rod of this utility model; Figure 4 This is a schematic diagram of the pressing device of this utility model.

[0013] In the diagram: 1. Unwinding device; 11. Base; 12. Support plate; 13. Rotating shaft; 14. Servo motor; 15. Slide groove; 16. Bidirectional threaded rod; 17. Support block; 18. Support rod; 19. Spreading plate; 191. Anti-slip pad; 2. Pressing device; 21. Support plate; 22. Slide rod; 23. Baffle; 24. Pulley block; 25. Compression spring; 26. Pull plate; 27. Positioning rod; 28. Pull handle; 29. ​​Locking block. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0015] Please see Figure 1-4 This utility model provides a technical solution: an uncoiling platform for an uncoiling machine for steel pipe processing, comprising: an uncoiling device 1, a pressing device 2 fixedly connected to the outer wall of the top of the uncoiling device 1; the uncoiling device 1 includes a base 11, a support plate 12 fixedly connected to the outer wall of the top of the base 11, a rotating shaft 13 rotatably connected to the inner wall of the support plate 12, a servo motor 14 rotatably connected to the outer wall of the rotating shaft 13, symmetrically provided sliding grooves 15 on the outer wall of the rotating shaft 13, a bidirectional threaded rod 16 rotatably connected to the inner wall of the sliding groove 15, symmetrically provided support blocks 17 on the outer wall of the bidirectional threaded rod 16, a support rod 18 rotatably connected to the inner wall of the support block 17, a spreading plate 19 rotatably connected to the outer wall of the support rod 18 away from the support block 17, and an anti-slip pad 191 fixedly connected to the outer wall of the spreading plate 19.

[0016] The outer wall of the servo motor 14 is fixedly connected to the outer wall of the support plate 12, the outer wall of the support block 17 is slidably connected to the inner wall of the slide groove 15, and the support plate 19 is arranged in a ring array along the central point of the rotating shaft 13. Multiple sets of ring array support plates 19 move synchronously in a direction away from the axis of the rotating shaft 13 to facilitate support of the coiled material.

[0017] The clamping device 2 includes a support plate 21. A slide rod 22 is symmetrically and slidably connected to the inner wall of the top of the support plate 21. A baffle 23 is fixedly connected to the outer wall of the bottom of the slide rod 22. A pulley group 24 is fixedly connected to the outer wall of the bottom of the baffle 23. A compression spring 25 is fixedly connected to the outer wall of the top of the baffle 23. A pull plate 26 is fixedly connected to the outer wall of the top of the slide rod 22. A positioning rod 27 is rotatably connected to the inner wall of the pull plate 26. A pull handle 28 is fixedly connected to the outer wall of the top of the positioning rod 27. A locking block 29 is symmetrically and fixedly connected to the outer wall of the side of the positioning rod 27.

[0018] The outer wall of the compression spring 25 away from the baffle 23 is fixedly connected to the outer wall of the top of the support plate 21. The outer wall of the positioning rod 27 is slidably connected to the inner wall of the top of the support plate 21. The outer wall of the bottom of the locking block 29 is in contact with the outer wall of the top of the support plate 21. When the pulley group 24 is raised to a suitable height, the handle 28 is rotated, which drives the locking block 29 fixed on the side of the positioning rod 27 to rotate synchronously, so that the bottom of the locking block 29 is in contact with the outer wall of the top of the support plate 21. At this time, the locking block 29 provides support for the slide rod 22 through the positioning rod 27 and the pull plate 26, so that the pulley group 24 is kept in the "raised state".

[0019] The outer wall at the bottom of the support plate 21 is fixedly connected to the outer wall at the top of the support plate 12. The pulley group 24 is set above the rotating shaft 13. The compression spring 25 continuously provides downward pressure to the material belt to counteract the "upward warping tendency" of the material belt caused by the internal stress of the rolled material, and ensures that the material belt is transported flat.

[0020] In use, the unwinding device 1 achieves centering and clamping of the metal coil and active unwinding, and works with the pressing device 2 to press and limit the material strip in real time during the unwinding process. The steel coil is placed on the rotating shaft 13, and then the double-threaded rod 16 is rotated. At this time, the two sets of support blocks 17 on the outer wall of the double-threaded rod 16 move in opposite directions along the slide groove 15. The support blocks 17 push the support rod 18 to unfold outward. When the support rod 18 unfolds, it generates a radial thrust on the expansion plate 19, causing the multiple sets of annular array expansion plates 19 to move synchronously away from the axis of the rotating shaft 13 until the anti-slip pad 191 fixedly connected to the outer wall of the expansion plate 19 is tightly attached to the inner wall of the coil. The anti-slip pad 191 can increase the friction between the expansion plate 19 and the inner hole of the coil, prevent the coil from sliding relative to the expansion plate 19 when it is unwound, and fix the coil. Next, the speed of the servo motor 14 is set, and the servo motor 14 drives the rotating shaft 13 to rotate at a constant speed. Since the coil has been clamped by the spreading plate 19, the rotating shaft 13 rotates synchronously, driving the coil to rotate around the axis of the rotating shaft 13. The outer layer of the coil is gradually released, realizing active unwinding. During the unwinding process, the rotating shaft 13 always maintains stable rotation, and the coil will not have radial deviation due to precise centering, ensuring that the material is conveyed to the subsequent process along a fixed direction. The support plate 21 of the clamping device 2 is fixed to the top outer wall of the support plate 12, and the pulley group 24 is located directly above the rotating shaft 13. The compression spring 25 fixed to the top outer wall of the baffle 23 is in a "naturally extended state". The other end of the compression spring 25 is fixedly connected to the top outer wall of the support plate 21. Its elastic force pushes the baffle 23 downward, so that the pulley group 24 at the bottom of the baffle 23 is pressed tightly against the surface of the material belt. The pulley group 24 rolls in contact with the surface of the material belt. The elastic force of the compression spring 25 continuously provides downward pressure to the material belt, which counteracts the "upward warping tendency" of the material belt caused by the internal stress of the coil, and ensures that the material belt is conveyed flat. If it is necessary to change the coil or stop the machine, pull the handle 28 at the top of the pull plate 26 upward. The handle 28 drives the positioning rod 27 along the... The inner wall of the top of the support plate 21 slides upward, and the pull plate 26 simultaneously pulls the slide rod 22 upward. The slide rod 22 drives the baffle 23 and the pulley group 24 to lift upward and detach from the surface of the material strip. When the pulley group 24 is lifted to a suitable height, the pull handle 28 is rotated, which drives the locking block 29 fixed on the side of the positioning rod 27 to rotate synchronously, so that the bottom of the locking block 29 contacts the outer wall of the top of the support plate 21. At this time, the locking block 29 provides support for the slide rod 22 through the positioning rod 27 and the pull plate 26, so that the pulley group 24 is kept in the "lifted state", which is convenient for the operator to change the roll or clean the material strip. After the change is completed, the pull handle 28 is rotated in the opposite direction, the locking block 29 is detached from the support plate 21, and the compression spring 25 rebounds and pushes the pulley group 24 to press the material strip again, restoring the pressed state.

[0021] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0022] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An uncoiling platform for an uncoiler used in steel pipe processing, characterized in that, include: An unwinding device (1) is provided, and a pressing device (2) is fixedly connected to the outer wall of the top of the unwinding device (1). The unwinding device (1) includes a base (11), a support plate (12) is fixedly connected to the outer wall of the top of the base (11), a rotating shaft (13) is rotatably connected to the inner wall of the support plate (12), a servo motor (14) is rotatably connected to the outer wall of the rotating shaft (13), a sliding groove (15) is symmetrically opened on the outer wall of the rotating shaft (13), a bidirectional threaded rod (16) is rotatably connected to the inner wall of the sliding groove (15), a support block (17) is symmetrically opened on the outer wall of the bidirectional threaded rod (16), a support rod (18) is rotatably connected to the inner wall of the support block (17), a spreading plate (19) is rotatably connected to the outer wall of the support rod (18) away from the support block (17), and an anti-slip pad (191) is fixedly connected to the outer wall of the spreading plate (19).

2. The uncoiling platform of an uncoiler for steel pipe processing according to claim 1, characterized in that: The outer wall of the servo motor (14) is fixedly connected to the outer wall of the support plate (12), the outer wall of the support block (17) is slidably connected to the inner wall of the slide groove (15), and the spreading plate (19) is arranged in a ring along the central point of the rotating shaft (13).

3. The uncoiling platform of an uncoiler for steel pipe processing according to claim 1, characterized in that: The pressing device (2) includes a support plate (21), a slide rod (22) is symmetrically slidably connected to the inner wall of the top of the support plate (21), a baffle (23) is fixedly connected to the outer wall of the bottom of the slide rod (22), a pulley group (24) is fixedly connected to the outer wall of the bottom of the baffle (23), a compression spring (25) is fixedly connected to the outer wall of the top of the baffle (23), a pull plate (26) is fixedly connected to the outer wall of the top of the slide rod (22), a positioning rod (27) is rotatably connected to the inner wall of the pull plate (26), a pull handle (28) is fixedly connected to the outer wall of the top of the positioning rod (27), and a locking block (29) is symmetrically fixedly connected to the outer wall of the side of the positioning rod (27).

4. The uncoiling platform of an uncoiler for steel pipe processing according to claim 3, characterized in that: The outer wall of the compression spring (25) on the side away from the baffle (23) is fixedly connected to the outer wall of the top of the support plate (21), the outer wall of the positioning rod (27) is slidably connected to the inner wall of the top of the support plate (21), and the outer wall of the bottom of the locking block (29) is in contact with the outer wall of the top of the support plate (21).

5. The uncoiling platform of an uncoiler for steel pipe processing according to claim 3, characterized in that: The outer wall of the bottom of the support plate (21) is fixedly connected to the outer wall of the top of the support plate (12), and the pulley group (24) is set above the rotating shaft (13).

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