An uncoiler for a spiral duct forming machine

Abstract

The utility model provides a kind of uncoiler of spiral wind pipe forming machine, including uncoiler main body, uncoiler main body is provided with mounting plate, two groups of opposing arrangement's lifting frame are slidably arranged on mounting plate, two groups of receiving roller are arranged in lifting frame side, uncoiler main body is provided with the drive mechanism connected with two groups of lifting frame, two groups of lifting frame are opened and closed by drive mechanism drive, receiving roller is provided with linkage assembly connected with mounting plate, the opening and closing of lifting frame is converted into drive multiple receiving roller synchronous sliding along the direction of the axis of tension pulley frame in uncoiler main body by linkage assembly.The uncoiler can support steel coil while stabilizing, further disperses weight, avoids tension pulley frame to deform due to single point excessive stress, to extend the service life of uncoiler.

Description

Technical Field

[0001] This utility model specifically relates to an uncoiling machine for a spiral duct forming machine. Background Technology

[0002] Spiral ducts are circular ventilation ducts made of spirally wound metal strips. They achieve a weld-free, sealed structure through a seam-sealing process. Primarily used for air circulation and material transport, they discharge exhaust gases and smoke outdoors, improving the cleanliness and health of the indoor environment. In building smoke extraction systems, spiral ducts can serve as a conduit to draw smoke from indoors and discharge it outdoors, ensuring the safety of personnel and the building's fire safety. Due to their good thermal insulation performance, low noise, and high strength, they are widely used in various fields.

[0003] In the production process of spiral ducts, the uncoiler is the core equipment for continuously unwinding steel coils, and its stable operation is crucial to the forming accuracy and production efficiency of spiral ducts. The tension wheel frame of the uncoiler, as a key component, mainly functions to support the steel coil and maintain appropriate tension during unwinding, ensuring that the steel coil is unwound smoothly without loosening or wrinkling.

[0004] However, the existing tension wheel frame design of uncoilers has significant flaws: due to the large weight of the steel coil, the tension wheel frame must directly bear the entire weight of the coil. After prolonged exposure to high-intensity loads, the tension wheel frame is prone to deformation due to stress concentration, and in severe cases, structural damage may occur. This not only leads to increased equipment maintenance frequency and costs, but also disrupts production continuity due to frequent downtime for repairs, significantly shortening the overall service life of the uncoiler.

[0005] Currently, there is no effective solution in existing technology to alleviate the load-bearing pressure on the tension wheel frame, and there is a lack of uncoiling machine structures that can share the load of the tension wheel frame through reasonable structural design. Therefore, there is an urgent need for an uncoiling machine for spiral duct forming machines that can reduce the stress on the tension wheel frame and extend the service life of the equipment. Utility Model Content

[0006] To address the shortcomings of existing technologies, this utility model proposes an uncoiler for a spiral duct forming machine, which solves the technical problem mentioned in the background art that the tension wheel frame of existing uncoilers mostly needs to support the overall weight of the steel coil, resulting in the coil being subjected to a large weight for a long time and being prone to deformation and damage, thus reducing the service life of the uncoiler.

[0007] To achieve the above objectives, this utility model provides the following technical solution: an uncoiling machine for a spiral duct forming machine, comprising: Uncoiling machine body; Mounting plate is mounted on the main body of the uncoiler. Two sets of oppositely arranged lifting frames are slidably mounted on the mounting plate. Two sets of receiving rollers are mounted on one side of the lifting frames. A drive mechanism, disposed on the main body of the uncoiler and connected to the two sets of lifting frames, drives the two sets of lifting frames to open and close; and A linkage component is disposed on the receiving roller and connected to the mounting plate to convert the opening and closing of the lifting frame into driving multiple sets of the receiving rollers to slide synchronously along the direction toward the tension wheel frame axis in the uncoiling machine body.

[0008] In a preferred embodiment, positioning protrusions are provided on both sides of the mounting plate, and positioning grooves are provided on the lifting frame, with the positioning grooves slidably engaged on the positioning protrusions.

[0009] In a preferred embodiment, the drive mechanism includes: A hydraulic rod is fixedly mounted on the body of the uncoiler, and a first connecting frame is provided at its end; A second connecting frame is disposed on one of the sets of lifting frames and is hinged to a push rod, one end of which is hinged to the first connecting frame; and A transmission assembly is disposed on one set of the lifting frames and connected to the other set of the lifting frames to convert the lifting of one set of the lifting frames into driving the other set of the lifting frames to move in the opposite direction.

[0010] In a preferred embodiment, the transmission assembly includes: Two sets of racks are arranged opposite each other and are fixedly connected to the two sets of lifting frames respectively; and The gear is rotatably disposed on one side of the mounting plate and meshes with the two sets of racks.

[0011] In a preferred embodiment, the linkage component includes: A slider is slidably mounted on the lifting frame, and the receiving roller is rotatably mounted on one side of the slider; Guide wheel, disposed on the slider; and An inclined track is arranged on the mounting plate, and its extension direction is toward the axis of the tension wheel frame in the uncoiler body. The guide wheel is slidably engaged in the inclined track.

[0012] Compared with the prior art, the present invention has the following beneficial effects: When in use, the device unwinds the steel coil via the main body of the uncoiler. During the unwinding process, the drive mechanism opens and closes two sets of lifting frames. In conjunction with the linkage component, the opening and closing motion is converted into synchronous sliding of the receiving rollers along the axis of the tension wheel frame. This allows the receiving rollers to adapt to steel coils of different diameters, stably supporting the steel coil while further distributing the weight. This prevents the tension wheel frame from deforming due to excessive force at a single point, thereby extending the service life of the uncoiler. Furthermore, the multiple sets of receiving rollers can apply pressure to the surface of the steel coil, improving the flatness and stability of the steel coil during unwinding, thus ensuring the smooth unwinding process. Attached Figure Description

[0013] To more clearly illustrate the specific embodiments of this utility model, the accompanying drawings used in the specific embodiments will be briefly described below. In all the drawings, the elements or parts are not necessarily drawn to scale.

[0014] Figure 1 A three-dimensional structural diagram of the uncoiling machine of a spiral duct forming machine provided by this utility model; Figure 2 This is a schematic diagram of the back structure of the uncoiling machine of a spiral duct forming machine according to the present invention. Figure 3 This is a schematic diagram of the receiving roller in the uncoiler of a spiral duct forming machine according to the present invention; Figure label: 1. Uncoiling machine body; 2. Mounting plate; 3. Positioning protrusion; 4. Lifting frame; 5. Positioning groove; 6. Gear; 7. Rack; 8. Receiving roller; 9. Slider; 10. Guide wheel; 11. Inclined track; 12. First connecting frame; 13. Hydraulic rod; 14. Second connecting frame; 15. Push rod. Detailed Implementation

[0015] The present invention will now be described in further detail with reference to the accompanying drawings. It should be noted that the following specific embodiments are only used to further illustrate the present invention and should not be construed as limiting the scope of protection of the present invention. Those skilled in the art can make some non-essential improvements and adjustments to the present invention based on the above application content.

[0016] Example: like Figure 1 , 2 As shown, this utility model provides an uncoiling machine for a spiral duct forming machine, including an uncoiling machine body 1, an mounting plate 2 on the uncoiling machine body 1, two sets of oppositely arranged lifting frames 4 slidably arranged on the mounting plate 2, and two sets of receiving rollers 8 on one side of the lifting frames 4.

[0017] When in use, the uncoiler supports the steel coil through the tension wheel frame of the uncoiler body 1 to achieve the purpose of uncoiling. The receiving roller 8 abuts against the outside of the steel coil, which can not only press the steel coil, but also help support the steel coil and reduce the stress on the tension wheel frame of the uncoiler body 1.

[0018] like Figure 1 , 2 As shown, in this embodiment, the uncoiler body 1 is equipped with a drive mechanism connected to two sets of lifting frames 4, which drives the two sets of lifting frames 4 to open and close. The drive mechanism includes a hydraulic rod 13 fixedly mounted on the uncoiler body 1, with a first connecting frame 12 at the end of the hydraulic rod 13. One set of lifting frames 4 is equipped with a second connecting frame 14, and a push rod 15 is hinged to the second connecting frame 14. One end of the push rod 15 is hinged to the first connecting frame 12. One set of lifting frames 4 is equipped with a transmission assembly connected to the other set of lifting frames 4, which converts the lifting of one set of lifting frames 4 into driving the other set of lifting frames 4 to move in the opposite direction. The transmission assembly includes two sets of racks 7 arranged opposite to each other, which are fixedly connected to the two sets of lifting frames 4 respectively. A gear 6 is rotatably mounted on one side of the mounting plate 2, and the gear 6 meshes with the two sets of racks 7.

[0019] The first connecting frame 12 can be laterally slid by controlling the extension and retraction of the hydraulic rod 13, which in turn drives one set of lifting frames 4 to rise and fall via the push rod 15. During the rising and falling process, the other set of lifting frames 4 can also be controlled to move in the opposite direction by the cooperation of two sets of racks 7 and gears 6. Positioning protrusions 3 are provided on both sides of the mounting plate 2, and positioning grooves 5 are provided on the lifting frames 4. The positioning grooves 5 slide and engage with the positioning protrusions 3, and the movement of the lifting frames 4 is positioned by the cooperation of the positioning protrusions 3 and the positioning grooves 5.

[0020] like Figure 1 , 3 As shown, in this embodiment, the receiving roller 8 is provided with a linkage assembly connected to the mounting plate 2. The linkage assembly converts the opening and closing of the lifting frame 4 into driving multiple sets of receiving rollers 8 to slide synchronously along the axis of the tension wheel frame in the uncoiler body 1. The linkage assembly includes a slider 9 slidably disposed on the lifting frame 4. The receiving roller 8 is rotatably disposed on one side of the slider 9. The slider 9 is provided with a guide wheel 10. Multiple sets of inclined rails 11 are arranged on the mounting plate 2. The extension direction of the inclined rails 11 is towards the axis of the tension wheel frame in the uncoiler body 1. The guide wheel 10 is slidably engaged in the inclined rails 11.

[0021] During the lifting process, the lifting frame 4 can control multiple sets of receiving rollers 8 to slide synchronously in the direction toward the axis of the tension wheel frame through the cooperation of the guide wheel 10 and the inclined track 11. This makes the space enclosed by multiple sets of receiving rollers 8 adjustable, so as to adapt to the diameter change of the steel coil during the uncoiling process and improve the receiving effect.

[0022] The specific usage and beneficial effects of this utility model are as follows: When in use, the device unwinds the steel coil through the main body 1 of the uncoiler. During the unwinding process, the two sets of lifting frames 4 can be driven to open and close by the drive mechanism. With the help of the linkage component, the opening and closing motion is converted into the synchronous sliding of the receiving rollers 8 along the axis of the tension wheel frame. This allows the receiving rollers 8 to adapt to steel coils of different diameters, stably support the steel coil, and further distribute the weight, preventing the tension wheel frame from deforming due to excessive force at a single point. This extends the service life of the uncoiler. In addition, the multiple sets of receiving rollers 8 can also apply pressure to the surface of the steel coil, improving the flatness and stability of the steel coil during unwinding, thus ensuring the smooth unwinding of the steel coil.

[0023] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above. Modifications or improvements can be made to this utility model, which is obvious to those skilled in the art. Therefore, all such modifications or improvements made without departing from the spirit of this utility model fall within the scope of protection claimed by this utility model.

Claims

1. An uncoiling machine for a spiral duct forming machine, characterized in that, Including: Uncoiling machine body (1); Mounting plate (2) is set on the main body (1) of the uncoiler. Two sets of oppositely arranged lifting frames (4) are slidably set on the mounting plate (2). Two sets of receiving rollers (8) are set on one side of the lifting frame (4). A drive mechanism is provided on the main body (1) of the uncoiler and connected to the two sets of lifting frames (4) to drive the two sets of lifting frames (4) to open and close. and A linkage component is set on the receiving roller (8) and connected to the mounting plate (2) to convert the opening and closing of the lifting frame (4) into driving multiple sets of receiving rollers (8) to slide synchronously along the direction toward the tension wheel frame axis in the uncoiling machine body (1).

2. The uncoiling machine of the spiral duct forming machine according to claim 1, characterized in that: The mounting plate (2) has positioning protrusions (3) on both sides, and the lifting frame (4) has positioning grooves (5) which are slidably engaged on the positioning protrusions (3).

3. The uncoiling machine of the spiral duct forming machine according to claim 1, characterized in that, The driving mechanism includes: The hydraulic rod (13) is fixedly mounted on the main body (1) of the uncoiler, and a first connecting frame (12) is provided at its end. The second connecting frame (14) is mounted on one of the sets of lifting frames (4) and is hinged to a push rod (15), one end of which is hinged to the first connecting frame (12); and A transmission component is provided on one set of the lifting frames (4) and connected to the other set of the lifting frames (4) to convert the lifting of one set of the lifting frames (4) into driving the other set of the lifting frames (4) to move in the opposite direction.

4. The uncoiling machine of the spiral duct forming machine according to claim 3, characterized in that, The transmission assembly includes: Two sets of racks (7) are arranged opposite each other and are fixedly connected to the two sets of lifting frames (4); and The gear (6) is rotatably disposed on one side of the mounting plate (2) and meshes with the two sets of racks (7).

5. The uncoiling machine of the spiral duct forming machine according to claim 1, characterized in that, The linkage components include: The slider (9) is slidably mounted on the lifting frame (4), and the receiving roller (8) is rotatably mounted on one side of the slider (9); Guide wheel (10), disposed on the slider (9); and An inclined track (11) is arranged on the mounting plate (2) and its extension direction is toward the axis of the tension wheel frame in the uncoiling machine body (1). The guide wheel (10) is slidably engaged in the inclined track (11).

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