Stainless steel multi-wedge linkage rolling device

Abstract

The utility model belongs to the technical field of winding equipment, especially relates to a stainless steel multi-wedge linkage winding device, including outer shaft, inner shaft and tensioning mechanism, the section of outer shaft is annular shape structure setting, and stainless steel material can be wound on the outside wall of outer shaft, inner shaft is concentric rotation connection in the inner ring of outer shaft, and the inner wall between inner shaft and the inner ring of outer shaft is provided with movable gap, and inner shaft and outer shaft can rotate synchronously or relatively, tensioning mechanism slides on outer shaft, at least the end of tensioning mechanism is located in movable gap, the outside wall of inner shaft is provided with the drive block extending to movable gap, and the end of tensioning mechanism and drive block each other is provided with the inclined abutment surface of shape adaptation, through the relative rotation movement of inner shaft and outer shaft, drive the drive block with inclined abututment surface extrude corresponding inclined plane on tensioning mechanism, thereby the rotation movement of inner shaft is converted into the radial linear motion of tensioning mechanism in outer shaft, realizes the adjustment to the effective winding diameter of outer shaft.

Description

Technical Field

[0001] This utility model belongs to the technical field of winding equipment, and in particular relates to a stainless steel multi-wedge linkage winding device. Background Technology

[0002] Currently, the winding operation of stainless steel strip generally adopts center winding technology with constant tension control. This technology relies on the drive system to provide rotational torque to the winding shaft, while sensors monitor the strip tension in real time and feed it back to the control system to adjust the torque output, thereby theoretically maintaining a stable winding tension. The winding shaft is usually a rigid metal structure with a smooth or simply textured fixed shape on its outer surface. It relies on friction with the inner ring of the strip to transmit torque and tighten the steel coil.

[0003] However, the above method has inherent drawbacks. Because the outer surface of the winding shaft remains fixed, the contact area between the strip and the shaft surface is small and the fit is low in the initial winding stage, resulting in limited friction. If a lower tension is used at this time to avoid damaging the material, it can easily lead to loose winding in the core area, forming an undesirable coil shape that is "loose inside and tight outside." This loose internal structure not only affects the overall stability and appearance quality of the steel coil, but may also cause damage such as coil collapse and scratches due to interlayer slippage during subsequent lifting or storage. Furthermore, it poses a hidden danger to the smooth unwinding process in downstream operations. Utility Model Content

[0004] The purpose of this utility model is to provide a stainless steel multi-wedge linkage winding device, which aims to solve the technical problem that in the initial winding stage of existing stainless steel winding devices, the lower tension is used to avoid damaging the material, which easily leads to loose winding in the core area and the formation of an undesirable winding shape that is "loose inside and tight outside".

[0005] To achieve the above objectives, this utility model provides a stainless steel multi-wedge linkage winding device, including an outer shaft, an inner shaft, and a tensioning mechanism. The outer shaft has a ring-shaped cross-section, allowing stainless steel material to be wound around its outer outer wall. The inner shaft is concentrically rotatably connected to the inner ring of the outer shaft, with a movable gap between the inner shaft and the inner wall of the outer shaft. The inner shaft and the outer shaft can rotate synchronously or relative to each other. The tensioning mechanism slides on the outer shaft, with at least one end of the tensioning mechanism located within the movable gap. A drive block extending into the movable gap is provided on the outer outer wall of the inner shaft, and the ends of the tensioning mechanism and the drive block, facing each other, are provided with shaped, inclined abutment surfaces. The inner shaft can rotate concentrically relative to the outer shaft. During the rotation of the inner shaft, the drive block rotates and moves, driving the tensioning mechanism to move through the inclined abutment surfaces, causing the end of the tensioning mechanism away from the drive block to move away from or closer to the outer shaft.

[0006] Optionally, the end face of the tensioning mechanism away from the drive block is arranged in an arc shape, and the outer side wall of the outer shaft is designed to be flush with and coplanar with the end face of the tensioning mechanism away from the drive block.

[0007] Optionally, there are multiple sets of tensioning mechanisms and driving blocks, with the number of tensioning mechanisms and driving blocks being equal. All driving blocks are evenly distributed circumferentially on the outer wall of the inner shaft and on the outer shaft. During the rotation of the inner shaft relative to the outer shaft, each driving block drives the corresponding tensioning mechanism to move.

[0008] Optionally, the outer shaft is provided with a sliding groove, and the tensioning mechanism is slidably connected within the sliding groove.

[0009] Optionally, the tensioning mechanism includes a slider, an abutment block, and an elastic element. The slider is slidably connected in the groove, the abutment block is disposed at the end of the slider away from the driving block, the elastic element is drivenly connected to the slider and always drives the slider to move in the direction of the inner axis, and the inclined abutment surface is formed at the end of the slider away from the abutment block.

[0010] Optionally, the end face of the abutment block away from the slider is coplanar with the outer side wall of the outer shaft.

[0011] Optionally, the slide groove includes a receiving groove, a connecting groove, and a driving groove. The slider is slidably connected in the connecting groove. A protrusion extending into the driving groove is provided on the side wall of the slider. The elastic element is located in the driving groove. The two ends of the elastic element abut against the protrusion and the inner wall of the driving groove, respectively. The receiving groove is used to receive the abutment block.

[0012] Optionally, the drive block includes a first drive portion, a second drive portion, and a third drive portion, the edges of the first drive portion, the second drive portion, and the third drive portion are all formed with the inclined abutment surface, and the thickness of the first drive portion, the second drive portion, and the third drive portion increases sequentially.

[0013] Optionally, the ends of the first driving part, the second driving part, and the third driving part away from the inner shaft, and the end of the tensioning mechanism near the inner shaft are all formed with abutting arc surfaces. The abutting arc surfaces are formed on one side of the inclined abutting surface, and the ends of the tensioning mechanism can be tightly fitted together through the two sets of abutting arc surfaces.

[0014] Optionally, a stop block is also provided on the outer side wall of the inner shaft, and a limiting groove is formed between the stop block and the drive block to prevent the end of the tensioning mechanism from moving away from the drive block.

[0015] The stainless steel multi-wedge linkage winding device provided in this utility model embodiment has at least one of the following technical effects: through the relative rotational motion of the inner shaft and the outer shaft, the drive block with an inclined contact surface on its outer side is driven to squeeze the corresponding inclined surface on the tensioning mechanism, thereby converting the rotational motion of the inner shaft into the radial linear motion of the tensioning mechanism in the outer shaft, realizing the dynamic and stepless adjustment of the effective winding diameter of the outer shaft; this design effectively overcomes the inherent defects of traditional fixed diameter winding shafts, which are forced to use lower tension in the initial winding stage due to small contact area and insufficient friction, resulting in loose core and poor winding shape with loose inner and tight outer. By increasing the outer shaft diameter and providing sufficient contact and clamping force at the beginning of winding, it ensures that tight winding can be achieved under high tension from the first turn of the core, and finally obtains a high-quality steel coil with consistent inner and outer tightness, fundamentally avoiding subsequent quality and safety hazards such as coil collapse and scratches caused by loose inner layers. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 A schematic diagram of the structure of the stainless steel multi-wedge linkage winding device provided in the embodiment of this utility model.

[0018] Figure 2 for Figure 1 A schematic diagram of the structure after the inner axis is rotated.

[0019] Figure 3 for Figure 2 An enlarged view of A in the image.

[0020] Figure 4 for Figure 3 A schematic diagram of the sliding groove on the outer shaft.

[0021] The following are the labeling elements in the figure:

[0022] 100—Outer shaft; 200—Inner shaft; 300—Tensioning mechanism

[0023] 400—Movement clearance; 500—Drive block; 600—Inclined contact surface

[0024] 110—Groove; 310—Slider; 320—Abutment Block

[0025] 330—Elastic element; 111—Receiving groove; 112—Connecting groove

[0026] 113—Drive slot 510—First drive unit 520—Second drive unit

[0027] 530—Third drive unit; 700—Abutting arc surface; 800—Stop block

[0028] 900—Limiting groove; 311—Protrusion. Detailed Implementation

[0029] The embodiments of this utility model are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The following description is based on the accompanying drawings. Figures 1-4 The described embodiments are exemplary and intended to explain embodiments of the present invention, and should not be construed as limiting the present invention.

[0030] In the description of the embodiments of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "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 this utility model 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 this utility model.

[0031] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of embodiments of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0032] In this embodiment of the invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention according to the specific circumstances.

[0033] In one embodiment of this utility model, such as Figures 1-4As shown, a stainless steel multi-wedge linkage winding device is provided, including an outer shaft 100, an inner shaft 200, and a tensioning mechanism 300. The outer shaft 100 has a ring-shaped cross-section, allowing stainless steel material to be wound around its outer outer wall. The inner shaft 200 is concentrically rotatably connected to the inner ring of the outer shaft 100, and a movable gap 400 is provided between the inner shaft 200 and the inner wall of the outer shaft 100. The inner shaft 200 and the outer shaft 100 can rotate synchronously or relative to each other. The tensioning mechanism 300 slides on the outer shaft 100. At least one end of the tensioning mechanism 300 is located on the outer shaft 100. Within the aforementioned movable gap 400; wherein, a drive block 500 extending into the movable gap 400 is provided on the outer side wall of the inner shaft 200, and the ends of the tensioning mechanism 300 and the drive block 500 opposite to each other are provided with shaped inclined abutment surfaces 600; the inner shaft 200 can rotate concentrically relative to the outer shaft 100, and during the rotation of the inner shaft 200, the drive block 500 rotates and moves, and drives the tensioning mechanism 300 to move through the inclined abutment surfaces 600, so that the end of the tensioning mechanism 300 away from the drive block 500 moves away from or closer to the outer shaft 100.

[0034] The relative rotational motion of the inner shaft 200 and the outer shaft 100 drives the drive block 500 with the inclined contact surface 600 on its outer side to press the corresponding inclined surface on the tensioning mechanism 300, thereby converting the rotational motion of the inner shaft 200 into the radial linear motion of the tensioning mechanism 300 within the outer shaft 100, realizing dynamic and stepless adjustment of the effective winding diameter of the outer shaft 100. This design effectively overcomes the inherent defects of traditional fixed-diameter winding shafts, which are forced to use lower tension in the initial winding stage due to small contact area and insufficient friction, resulting in loose core and poor coil shape with loose inner and tight outer layers. By increasing the diameter of the outer shaft 100 and providing sufficient contact and clamping force at the beginning of winding, it ensures that tight winding can be achieved under high tension from the first turn of the core, ultimately obtaining a high-quality steel coil with consistent inner and outer tightness, fundamentally avoiding subsequent quality and safety hazards such as coil collapse and scratches caused by loose inner layers.

[0035] like Figures 1-4 As shown, in another embodiment of this utility model, the end face of the tensioning mechanism 300 away from the driving block 500 is arranged with an arc surface structure, and the outer wall of the outer shaft 100 is flush with and coplanar with the end face of the tensioning mechanism 300 away from the driving block 500. This arc-shaped coplanar design allows the tensioning mechanism 300 to smoothly connect with the outer wall of the outer shaft 100 after extension, forming a complete and continuous support surface. This ensures that the stainless steel strip always transitions smoothly during the winding process, avoiding indentations or local stress concentrations that may occur due to uneven surfaces, and effectively protecting the surface quality of the strip.

[0036] like Figures 1-4 As shown, in another embodiment of this utility model, there are multiple sets of tensioning mechanisms 300 and driving blocks 500, with an equal number of each. All driving blocks 500 are evenly distributed circumferentially on the outer wall of the inner shaft 200, and all tensioning mechanisms 300 are evenly distributed circumferentially on the outer shaft 100. During the rotation of the inner shaft 200 relative to the outer shaft 100, each driving block 500 drives its corresponding tensioning mechanism 300 to move. This evenly distributed arrangement ensures that the tensioning force is applied uniformly to the coil core, guaranteeing that the outer shaft 100 maintains its circular shape after expansion. This ensures the coiled steel has a regular shape and avoids roundness errors or ellipticization caused by uneven force, greatly improving the overall quality of winding.

[0037] like Figures 1-4 As shown, in another embodiment of this utility model, the outer shaft 100 is provided with a slide groove 110, and the tensioning mechanism 300 is slidably connected within the slide groove 110. The slide groove 110 provides precise guidance and limitation for the radial movement of the tensioning mechanism 300, constraining it to slide smoothly along a predetermined trajectory, preventing deviation or jamming during the driving process, ensuring the reliability and repeatability of the transmission process, while simplifying the overall structure and facilitating assembly and maintenance.

[0038] like Figures 1-4 As shown, in another embodiment of this utility model, the tensioning mechanism 300 includes a slider 310, an abutment block 320, and an elastic element 330. The slider 310 is slidably connected within the groove 110. The abutment block 320 is disposed at the end of the slider 310 away from the driving block 500. The elastic element 330 is drivenly connected to the slider 310 and always drives the slider 310 to move towards the inner shaft 200. The inclined abutment surface 600 is formed at the end of the slider 310 away from the abutment block 320. The restoring force provided by the elastic element 330 ensures that the slider 310 and its inclined abutment surface 600 always tend to contract towards the inner shaft 200. This not only ensures that the tensioning mechanism 300 can automatically and quickly reset when the diameter needs to be reduced, but also ensures that the inclined abutment surface 600 and the driving block 500 are always in contact, preparing for the next diameter expansion operation, thus realizing the automatic reset and bidirectional controllable movement of the mechanism.

[0039] like Figures 1-4As shown, in another embodiment of this utility model, the end face of the abutment block 320 away from the slider 310 is coplanar with the outer side wall of the outer shaft 100. This coplanar design ensures that when the tensioning mechanism 300 is in the retracted state, the abutment block 320 can be perfectly integrated into the outer contour of the outer shaft 100 without protruding or sinking, thus not affecting the normal use of the empty drum or the passage of the strip in the non-working state, ensuring the versatility and operational safety of the equipment.

[0040] like Figures 1-4 As shown, in another embodiment of this utility model, the slide groove 110 includes a receiving groove 111, a connecting groove 112, and a driving groove 113. The slider 310 is slidably connected in the connecting groove 112. A protrusion 311 extending into the driving groove 113 is provided on the side wall of the slider 310. The elastic member 330 is located in the driving groove 113, and both ends of the elastic member 330 abut against the protrusion 311 and the inner wall of the driving groove 113, respectively. The receiving groove 111 is used to receive the abutment block 320. In this embodiment, the elastic member 330 is a compression spring. This split-type channel structure enables independent and precise layout of the movement of the slider 310, the action of the elastic element 330, and the storage space of the abutment block 320. The protrusion 311 directly transmits the linear movement of the slider 310 to the elastic element 330. The drive groove 113 provides a stable compression stroke space for the compression spring, ensuring the effective application of the reset force. The receiving groove 111 provides clearance space for the abutment block 320, making the overall structure compact and functionally distinct, and ensuring reliable operation.

[0041] like Figures 1-4 As shown, in another embodiment of this utility model, the drive block 500 includes a first drive part 510, a second drive part 520, and a third drive part 530. The edges of the first drive part 510, the second drive part 520, and the third drive part 530 are all formed with inclined abutment surfaces 600. The thicknesses of the first drive part 510, the second drive part 520, and the third drive part 530 increase sequentially. Drive parts of different thicknesses can drive the end of the tensioning mechanism 300 to different positions, achieving multi-level tension adjustment. The multi-level drive parts with different thicknesses are equivalent to providing multiple fixed diameter expansion positions for the winding shaft. Operators can select the appropriate drive part according to different specifications or process requirements of the strip material, thereby achieving targeted and precise diameter adjustment, expanding the process adaptability range of the equipment, and meeting the needs of differentiated production.

[0042] like Figures 1-4As shown, in another embodiment of this utility model, the ends of the first driving part 510, the second driving part 520, and the third driving part 530 away from the inner shaft 200, and the end of the tensioning mechanism 300 near the inner shaft 200, are all formed with abutting arc surfaces 700. The abutting arc surfaces 700 are formed on one side of the inclined abutting surface 600, allowing the end of the tensioning mechanism 300 to be tightly fitted through the two sets of abutting arc surfaces 700. The design of the abutting arc surfaces 700 changes the contact between the driving block 500 and the tensioning mechanism 300 from a theoretical line contact to an actual surface contact, significantly increasing the force-bearing area and reducing the pressure at the contact points. This reduces wear and enables the transmission of greater thrust. Simultaneously, the arc surface fit also helps improve the stability of the mechanism under stress, reduces impact and vibration, and extends its service life.

[0043] like Figures 1-4 As shown, in another embodiment of this utility model, a stop block 800 is also provided on the outer side wall of the inner shaft 200. A limiting groove 900 is formed between the stop block 800 and the drive block 500 to prevent the end of the tensioning mechanism 300 from moving away from the drive block 500. The stop block 800 and the limiting groove 900 constitute a mechanical hard limit on the radial movement range of the tensioning mechanism 300, preventing it from excessively disengaging from the drive block 500 due to inertia or other unexpected reasons when the inner shaft 200 rotates back in the opposite direction, or even from coming out of the slide groove 110. This ensures the safety and reliability of the mechanism's operation and plays an important protective role.

[0044] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A stainless steel multi-wedge linkage winding device, characterized in that, include: The outer shaft has a ring-shaped cross-section, and stainless steel material can be wound around the outer side wall of the outer shaft. An inner shaft is concentrically rotatably connected to the inner ring of the outer shaft. A movable gap is provided between the inner shaft and the inner wall of the inner ring of the outer shaft. The inner shaft and the outer shaft can rotate synchronously or relative to each other. A tensioning mechanism that slides on the outer shaft; at least one end of the tensioning mechanism is located within the movable gap; The inner shaft has a drive block extending into the movable gap on its outer side wall. The tensioning mechanism and the drive block have opposite ends with shaped inclined abutment surfaces. The inner shaft can rotate concentrically relative to the outer shaft. During the rotation of the inner shaft, the drive block rotates and moves, and drives the tensioning mechanism to move through the inclined abutment surfaces, so that the end of the tensioning mechanism away from the drive block moves away from or closer to the outer shaft.

2. The stainless steel multi-wedge linkage winding device according to claim 1, characterized in that: The end face of the tensioning mechanism away from the drive block is arranged in an arc shape, and the outer side wall of the outer shaft is designed to be flush with and coplanar with the end face of the tensioning mechanism away from the drive block.

3. The stainless steel multi-wedge linkage winding device according to claim 1, characterized in that: The tensioning mechanism and the driving block are in multiple sets, and the number of tensioning mechanisms and driving blocks are equal. All the driving blocks are evenly distributed circumferentially on the outer wall of the inner shaft and evenly distributed circumferentially on the outer shaft. During the rotation of the inner shaft relative to the outer shaft, each driving block drives the corresponding tensioning mechanism to move.

4. The stainless steel multi-wedge linkage winding device according to claim 1, characterized in that: The outer shaft is provided with a sliding groove, and the tensioning mechanism is slidably connected in the sliding groove.

5. The stainless steel multi-wedge linkage winding device according to claim 4, characterized in that: The tensioning mechanism includes a slider, an abutment block, and an elastic element. The slider is slidably connected in the groove. The abutment block is disposed at the end of the slider away from the driving block. The elastic element is drivenly connected to the slider and always drives the slider to move in the direction of the inner axis. The inclined abutment surface is formed at the end of the slider away from the abutment block.

6. The stainless steel multi-wedge linkage winding device according to claim 5, characterized in that: The end face of the abutment block away from the slider is coplanar with the outer side wall of the outer shaft.

7. The stainless steel multi-wedge linkage winding device according to claim 5, characterized in that: The slide groove includes a receiving groove, a connecting groove, and a driving groove. The slider is slidably connected in the connecting groove. A protrusion extending into the driving groove is provided on the side wall of the slider. The elastic element is located in the driving groove. The two ends of the elastic element abut against the protrusion and the inner wall of the driving groove, respectively. The receiving groove is used to receive the abutment block.

8. The stainless steel multi-wedge linkage winding device according to claim 1, characterized in that: The drive block includes a first drive part, a second drive part, and a third drive part. The edges of the first drive part, the second drive part, and the third drive part are all formed with the inclined abutment surface. The thickness of the first drive part, the second drive part, and the third drive part increases sequentially.

9. The stainless steel multi-wedge linkage winding device according to claim 8, characterized in that: The ends of the first drive unit, the second drive unit, and the third drive unit away from the inner shaft, and the end of the tensioning mechanism near the inner shaft, are all formed with abutting arc surfaces. The abutting arc surfaces are formed on one side of the inclined abutting surface, and the ends of the tensioning mechanism can be tightly fitted together through the two sets of abutting arc surfaces.

10. The stainless steel multi-wedge linkage winding device according to claim 1, characterized in that: A stop block is also provided on the outer side wall of the inner shaft, and a limiting groove is formed between the stop block and the drive block to prevent the end of the tensioning mechanism from moving away from the drive block.

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