Damping device and expansion equipment

Abstract

The utility model relates to the technical field of industrial production, and discloses a damping device and expansion equipment, the damping device mainly comprises a fixing frame, a damping piece and an adjusting assembly, the fixing frame serves as a supporting structure of the device, the damping piece makes contact with the periphery of an unwinding disc, and the unwinding disc is assisted to stop rotating through friction force. The adjusting assembly comprises an operating part and a triggering part which are connected in a matched mode, and the triggering part makes contact with the surface of one side of the damping piece. The operation part and the trigger part are operated to move synchronously, the damping piece is pushed to abut against the periphery of the unwinding disc, so that the damping force is controlled, the rotation stopping efficiency and safety of the unwinding disc are effectively improved, the expansion equipment is suitable for various unwinding disc equipment, and the expansion equipment comprises the unwinding disc, the unwinding frame, the traction device and the damping device. The unwinding disc is rotationally arranged on the pay-off rack and is fixed, and is used for loading a to-be-expanded pipe; the traction device is used for dragging the pipe, and the damping device is used for assisting rotation stopping of the unwinding disc after traction is stopped, so that the expansion forming quality of the pipe is improved.

Description

Technical Field

[0001] This application relates to the field of industrial production technology, and further relates to a damping device and an expanding device. Background Art

[0002] In industrial production, a pay-off reel is used to carry and rotate coiled materials such as wire or pipe, so that the materials are introduced into a predetermined equipment for subsequent work. However, after the operation is completed, the pay-off reel will continue to rotate due to inertia, resulting in scattered materials and affecting subsequent processes. Existing pay-off reels often lack effective damping measures, making the stop control inaccurate, which not only reduces production efficiency but also may pose safety hazards. Summary of the Utility Model

[0003] Aiming at the above technical problems, the purpose of this application is to provide a damping device and an expanding device, aiming to provide an auxiliary stop function for the pay-off reel. This device can effectively suppress the inertial rotation of the pay-off reel, reduce the disorderly accumulation of materials, and ensure the smoothness of the production process and the safety of operation.

[0004] To achieve the above purpose, this application provides a damping device for the auxiliary stop of a pay-off reel, including:

[0005] A fixing frame;

[0006] A damping member, movably connected to the fixing frame, for contacting the outer periphery of the pay-off reel to assist its stop;

[0007] An adjusting assembly, arranged on the fixing frame, having an operating part and a triggering part, the triggering part is cooperatively connected with the operating part, and the triggering part is in contact with one side surface of the damping member, so that by controlling the operating part, the triggering part can be synchronously driven to move, and the triggering part can push the damping member to abut against the outer periphery of the pay-off reel to provide a damping effect.

[0008] In some embodiments, the adjusting assembly includes a first adjusting member and a second adjusting member. The second adjusting member has a hollow structure inside and is connected to the fixing frame to provide overall support for the adjusting assembly;

[0009] The first adjusting member is sleeved inside the second adjusting member. The triggering part is arranged at one end of the first adjusting member close to the damping member, and the operating part is cooperatively connected with the first adjusting member, so that when the operating part is operated, the first adjusting member slides along the axial direction of the second adjusting member, thereby realizing the abutment of the triggering part against the outer periphery of the pay-off reel.

[0010] In some embodiments, the operating part is rotatably connected to one end of the second adjusting part away from the damping part. The operating part is provided with a through hole, and corresponding thread structures are provided on the inner circumference of the through hole and the outer circumference of the first adjusting part, so that the first adjusting part can pass through the through hole and form a threaded fit connection with the operating part;

[0011] A limiting structure is further provided between the outer circumference of the first adjusting part and the inner circumference of the second adjusting part for restricting the circumferential rotation of the first adjusting part, so that when the operating part rotates, the first adjusting part can generate an axial displacement.

[0012] In some embodiments, the limiting structure includes a limiting nut. The limiting nut is fixed to the outer circumference of the first adjusting part, and the outer circumferential contour of the limiting nut corresponds to the inner circumferential contour of the second adjusting part, and both are non-circular contours;

[0013] And / or, the adjusting assembly further includes an elastic member. The elastic member is located between the limiting structure and the operating part and is sleeved on the outer circumference of the first adjusting part. One side of the elastic member abuts against the limiting structure, and when the first adjusting part generates a displacement, the elastic member contracts or expands accordingly.

[0014] In some embodiments, a through hole adapted to the second adjusting part is provided on the fixing frame, and the second adjusting part passes through the through hole.

[0015] In some embodiments, the through hole is inclined so that the second adjusting part forms a preset angle with the horizontal plane;

[0016] One end of the fixing frame includes two separating segments. Each separating segment has a semi-hole, and the two semi-holes correspondingly form a through hole. And the separating segments can be deformed so that the aperture of the through hole can be adjusted by controlling the gap between the two separating segments for the installation and disassembly of the second adjusting part.

[0017] In some embodiments, a locking hole is provided at one end of the fixing frame close to the separating segment. The locking hole penetrates through the two separating segments at the same time and forms an avoidance for the through hole, so that a locking member can pass through the locking hole and lock the two separating segments at the same time to fasten the second adjusting part arranged in the through hole.

[0018] In some embodiments, when the first adjusting part extends the longest distance towards the damping part, the damping device has a first limit state to assist in stopping the rotation of a unwind reel with a diameter of 900 mm;

[0019] When the first adjusting member extends to the shortest distance from the damping member, the damping device has a second limit state to assist in stopping the rotation of the unwinding reel with a diameter of 1200 mm.

[0020] In some embodiments, the damping member and the fixing bracket are hinged to each other, so that the triggering portion can push the damping member to rotate.

[0021] And / or, a wear-resistant layer is provided on the surface of the damping member on the side away from the triggering portion.

[0022] On the other hand, the present application also provides an expansion device, including:

[0023] An expansion main machine for processing the pipe to be expanded.

[0024] An unwinding reel and a wire pay-off rack, the wire pay-off rack is arranged on the working ground or a preset position, and the unwinding reel is rotatably arranged on the wire pay-off rack for loading the pipe to be expanded.

[0025] A traction device for traction the pipe to be expanded and conveying it to the expansion main machine.

[0026] The above-mentioned damping device for assisting in stopping the rotation of the unwinding reel.

[0027] Compared with the prior art, the damping device and the expansion device provided in the present application have the following beneficial effects:

[0028] 1. By setting the adjusting assembly to adjust the position of the damping member, the damping member can contact the outer periphery of the unwinding reel, and the rotation speed of the unwinding reel is slowed down by the action of friction, achieving the effect of assisting the unwinding reel to stop rotating, and effectively avoiding the adverse impact on production safety caused by the abnormal rotation of the unwinding reel.

[0029] 2. A threaded movable connection is formed between the operating portion and the first adjusting member, and with the cooperation of the limiting structure, when the operating portion rotates, the first adjusting member can smoothly generate an axial displacement, thereby pushing the triggering portion to contact the damping member and realizing the abutment against the outer periphery of the unwinding reel. In the absence of external force, the cooperation between the operating portion and the first adjusting member will not loosen through the form of threaded connection, ensuring the stability of the damping member during operation. At the same time, the operator can adjust the position of the damping member by rotating the operating portion, which is simpler and easier to operate.

[0030] 3. By using the damping device, the expansion device can brake the unwinding reel after the traction stops, reducing the excessive unwinding of the pipe caused by inertia, ensuring the tension control of the pipe during the expansion process, and thus improving the quality of the expansion molding. Description of the Drawings

[0031] The above features, technical features, advantages and implementation manners of the present application will be further described below in a clear and understandable manner in combination with the accompanying drawings.

[0032] Figure 1 is a schematic diagram of the overall structure of a damping device in an embodiment of the present application;

[0033] Figure 2 is a partial cross-sectional view of the device in adjusting the position of the adjusting assembly in an embodiment of the present application;

[0034] Figure 3 is a schematic diagram of the adjustable working range of the device in an embodiment of the present application;

[0035] Figure 4 is a schematic diagram of the overall structure of a fixing bracket in an embodiment of the present application;

[0036] Figure 5 is a cross-sectional view of the fixing bracket in an embodiment of the present application;

[0037] Figure 6 is a schematic diagram of the overall structure of an expansion device in an embodiment of the present application.

[0038] Explanation of the reference numerals in the drawings: damping device 1; fixing bracket 20; through hole 200; partition section 21; locking hole 210; adjusting assembly 30; operating part 301; triggering part 302; first adjusting member 31; second adjusting member 32; limit nut 33; elastic member 34; damping member 40; wear-resistant layer 400; unwind reel 5; wire pay-off frame 6; traction device 7; expansion main unit 8. Specific embodiments

[0039] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the specific embodiments of the present application will be described below with reference to the accompanying drawings. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts, and other embodiments can also be obtained.

[0040] For the sake of simplicity of the drawings, only the parts related to the application are schematically shown in each drawing, and they do not represent their actual structures as products. In addition, for the sake of simplicity and easy understanding of the drawings, in some drawings, components with the same structure or function are only schematically shown for one of them, or only one of them is marked. In this document, "one" not only means "only this one", but also means "more than one" situation.

[0041] It should also be further understood that the term "and / or" used in the specification and appended claims of this application refers to any combination and all possible combinations of one or more of the associated listed items, and includes these combinations.

[0042] In this context, it should be noted that unless otherwise clearly specified and defined, the terms "installed", "connected", and "coupled" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0043] In the description of this application, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing this application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to this application.

[0044] In addition, in the description of this application, the terms "first", "second", etc. are only used for distinguishing descriptions and should not be understood as indicating or implying relative importance.

[0045] In the field of modern industrial production, the unwinding reel, as an important auxiliary device, is widely used in the winding and unwinding operations of coiled materials such as wire rods, pipes, cables, and textiles. Through its rotational movement, the unwinding reel realizes the continuous unwinding or winding of materials, which plays a crucial role in improving production efficiency and the degree of automation of material handling. However, there are some problems that need to be solved urgently in the existing technologies in practical applications.

[0046] First of all, during the working process of the unwinding reel, due to the continuous unwinding or winding of materials, a large amount of kinetic energy will be generated. When the operation is completed or it is necessary to stop the unwinding reel, this kinetic energy will cause the unwinding reel to continue rotating for a period of time due to inertia and it is difficult to stop immediately. This inertial effect will not only make the wire rods or pipes on the unwinding reel become scattered, but also may lead to the disordered stacking of materials, thus affecting the subsequent processing and use of the materials.

[0047] Secondly, the inertial rotation of the unwinding reel may also pose a threat to production safety. During high-speed unwinding or rewinding operations, the sudden scattering of materials may cause harm to operators or damage equipment. In addition, scattered materials may interfere with the production process, increase subsequent sorting and preparation work, and reduce production efficiency.

[0048] In response to the above problems, the present application provides a damping device that can effectively suppress the inertial rotation of the unwinding reel, accurately assist in stopping the unwinding reel, and ensure the stability and controllability of the material unwinding or winding process; at the same time, reduce material scattering, ensure production safety and improve work efficiency.

[0049] Reference Manual Attached Figure 1 and Figure 5 The damping device provided in the present application mainly includes three parts: a fixed frame 20, a damping member 40 and an adjusting assembly 30. The fixed frame 20, as the supporting structure of the entire device, is generally arranged near the unwinding reel 5 to ensure that the damping member 40 can be accurately positioned and act on the unwinding reel 5, and the damping member 40 is the core component for achieving the damping effect. The damping member 40 is movably connected to the fixed frame 20 and can come into contact with the outer periphery of the unwinding reel 5, thereby suppressing the rotation of the unwinding reel 5 and achieving rapid stop.

[0050] Among them, Figure 2 As shown, the adjustment assembly 30 includes an operating part 301 and a trigger part 302. The operating part 301 can be operated manually or by a machine. The operator can further control the movement of the damping member 40 by controlling the operating part 301. Specifically, the trigger part 302 contacts the surface of one side of the damping member 40. When the operating part 301 moves, the trigger part 302 moves accordingly, pushing the damping member 40 to abut against the outer periphery of the unwinding reel 5 to provide the required damping effect. It should be noted that the damping force of the damping member 40 can be accurately adjusted according to actual needs, ensuring the flexibility and adaptability of the operation.

[0051] It can be understood that the working principle of the damping device is based on the adjustment of friction. When the unwinding disc 5 needs to stop, the trigger part 302 pushes the damping member 40 to contact the outer periphery of the unwinding disc 5 through the operating part 301 of the adjustment component 30, and the rotation speed of the unwinding disc 5 is slowed down by the action of friction until it stops completely. This friction adjustment is continuous and can be adjusted in real time according to the rotation speed of the unwinding disc 5 and the characteristics of the material to ensure the stability and reliability of the stopping process.

[0052] In this embodiment, the material selection of the damping member 40 can be optimized to improve wear resistance and thermal stability; or a control system can be further provided in the design of the adjustment assembly 30 to realize automatic adjustment of the adjustment assembly 30 to improve the automation level and response speed of the device. In addition, a buffer mechanism can be added to the fixing frame 20 to absorb the impact force generated during the damping process and protect the service life of the device and the unwinding reel.

[0053] Based on the above content, optionally, the damping member 40 is provided with a wear-resistant layer 400 on the surface facing away from the trigger portion 302 to improve the durability and service life of the damping member 40 during long-term contact and friction. The wear-resistant layer 400 is usually made of highly wear-resistant materials that can reduce wear while maintaining the performance of the damping member 40 stable, so that the damping member 40 can provide a more stable and lasting damping effect when in contact with the unwinding reel 5, thereby ensuring the precise stopping of the unwinding reel 5.

[0054] In one embodiment, based on the above embodiment, the adjustment assembly 30 includes a first adjustment member 31 and a second adjustment member 32. The second adjustment member 32 is an internal hollow structure connected to the fixing frame 20 to provide overall support. The first adjustment member 31 is sleeved inside the second adjustment member 32. The trigger portion 302 is located at one end of the first adjustment member 31 close to the damping member 40. The operating portion 301 is connected with the first adjustment member 31 so that when the operating portion 301 is operated, the first adjustment member 31 can slide along the axial direction of the second adjustment member 32, driving the trigger portion 302 to abut against the outer periphery of the unwinding disk 5.

[0055] It can be understood that when the unwinding disc 5 needs to be stopped, the operator applies force through the operating part 301 to make the first adjusting member 31 slide in the second adjusting member 32, and the triggering part 302 moves accordingly, pushing the damping member 40 to contact the outer periphery of the unwinding disc 5. The friction force generated by the contact gradually slows down the rotation speed of the unwinding disc 5, playing a damping effect, and through the flexible operation of the adjustment component 30, it can adapt to the stopping requirements under different speed and load conditions.

[0056] Based on this embodiment, an implementation method is as follows: (not shown in the drawings) the second adjusting member 32 is an internal hollow structure, and the first adjusting member 31 is designed in the form of a slider, which is slidably connected to the second adjusting member 32. One end of the slider is a trigger portion 302, and the other end is fixedly connected to an operating portion 301. When the operating portion 301 is pushed, the slider slides along the axial direction of the second adjusting member 32, and the trigger portion 302 pushes the damping member 40 accordingly, thereby achieving abutment against the outer periphery of the unwinding disk 5 and providing a damping effect.

[0057] Specifically, when it is necessary to stop the unwinding reel 5, the operator pushes the operation part 301, causing the slider to slide within the second adjusting part 32. The triggering part 302 pushes the damping part 40 into contact with the outer periphery of the unwinding reel 5. The frictional force generated by the contact gradually slows down the rotation speed of the unwinding reel 5 until the unwinding reel 5 completely stops rotating. In order to lock the position of the damping part 40, multiple vacancies are provided on the second adjusting part 32, which can represent multiple gears. The operation part 301 also serves as a limiting end and can be inserted into the vacancies on the second adjusting part 32 for locking, ensuring that the damping part 40 is fixed in place as required. Of course, based on the technical concept of this embodiment, there will also be other implementation manners for the adjusting assembly 30, which will not be elaborated here.

[0058] In another embodiment, the operation part 301 is rotatably connected to the end of the second adjusting part 32 away from the damping part 40 and is provided with a through hole. Corresponding thread structures are provided on the inner periphery of the through hole and the outer periphery of the first adjusting part 31, such that the first adjusting part 31 can pass through the through hole and form a threaded mating connection with the operation part 301. At the same time, a limiting structure is provided between the outer periphery of the first adjusting part 31 and the inner periphery of the second adjusting part 32 to limit the circumferential rotation of the first adjusting part 31, ensuring that when the operation part 301 rotates, the first adjusting part 31 can smoothly generate an axial displacement, thereby pushing the triggering part 302 into contact with the damping part 40 to achieve abutment against the outer periphery of the unwinding reel 5. It should be noted that through this mechanism, the operator can control the position of the damping part 40 by simply rotating the operation part 301 to achieve precise control of the process of stopping the unwinding reel 5.

[0059] In addition, a threaded movable connection is formed between the first adjusting part 31 and the operation part 301. The threaded connection has a self-locking characteristic. In the absence of external force, the relative connection position between the first adjusting part 31 and the operation part 301 will not easily loosen, ensuring the stability of the damping part 40 during operation and thus ensuring the reliability of the device during long-term operation. On the other hand, the threaded connection can withstand a large axial force, which is particularly important for the damping device 1 to work under high-load conditions, ensuring that while sufficient frictional force is generated between the damping part 40 and the unwinding reel 5, the threaded connection part between the first adjusting part 31 and the operation part 301 will not be damaged due to excessive acting force.

[0060] At the same time, since the operation part 301 is rotatably connected to the end of the second adjusting part 32, the operation part 301 can be used as a closing member to close the opening of the second adjusting part 32, enhancing the sealing performance of the overall structure.

[0061] Further, the limiting structure includes a limiting nut 33. The limiting nut 33 is fixed to the outer periphery of the first adjusting member 31, and the outer peripheral contour of the limiting nut 33 corresponds to the inner peripheral contour of the second adjusting member 32. Both are non-circular contours, ensuring that the first adjusting member 31 only generates axial displacement and does not rotate circumferentially.

[0062] It can be understood that the designed limiting nut 33 in this embodiment can effectively convert the rotation of the operating part 301 into the axial movement of the first adjusting member 31, thereby pushing the damping member 40 into contact with the outer periphery of the unwinding reel 5 to achieve the damping effect. Moreover, the outer peripheral contour of the limiting nut 33 is adapted to the inner peripheral contour of the second adjusting member 32, so that when the first adjusting member 31 undergoes axial displacement, the limiting nut 33 can slide along the inner periphery of the second adjusting member 32, playing a certain guiding role and effectively improving the movement accuracy of the first adjusting member 31.

[0063] At the same time, the adjusting assembly 30 further includes an elastic member 34. The elastic member 34 is sleeved on the outer periphery of the first adjusting member 31 and abuts against the limiting structure at one side. Refer to the appendix Figure 2 , the elastic member 34 is located between the above-mentioned limiting nut 33 and the operating part 301. When the first adjusting member 31 generates displacement under the action of the operating part 301, the elastic member 34 contracts or expands accordingly, providing auxiliary power or resistance to ensure the smoothness and accuracy of the displacement.

[0064] When the operating part 301 rotates, the first adjusting member 31 moves axially along the second adjusting member 32. At the same time, in this embodiment, through the design of the elastic member 34, it can provide an additional pushing force when the first adjusting member 31 extends, which helps to overcome the frictional resistance during startup and ensures that the first adjusting member 31 can reach the predetermined position smoothly and quickly.

[0065] Alternatively, the triggering part 302 can be selected as a threaded ball, making the process of pushing the damping member 40 smoother, reducing the friction and wear on the damping member 40 during the operation process, and improving the service life and reliability of the entire damping device 1.

[0066] Based on the above embodiments, in one embodiment, the first adjusting member 31 can extend or retract axially within a certain range. When the first adjusting member 31 extends to the longest distance, the damping device reaches the first limit state, and at this time the device is suitable for assisting the unwinding reel with a diameter of 900 mm to stop rotating. On the contrary, when the first adjusting member 31 extends to the shortest distance, the damping device reaches the second limit state and is suitable for assisting the unwinding reel with a diameter of 1200 mm to stop rotating.

[0067] Among them, the extension distance of the first adjusting member 31 determines the contact degree between the damping member 40 and the outer periphery of the unwinding reel 5 and the magnitude of the damping force. Refer to the appendix of the specification Figure 3In the first limit state, the maximum extension of the first adjusting member 31 is suitable for an unwinding reel with a smaller diameter, such as the B reel marked in the figure. In the second limit state, the minimum extension of the first adjusting member 31 is suitable for an unwinding reel with a larger diameter, such as the A reel marked in the figure. In this embodiment, the 900 mm unwinding reel and the 1200 mm unwinding reel are both common specifications of unwinding reels 5 in the art. In a specific implementation, there may also be unwinding reels of other specifications.

[0068] In addition, in one embodiment, the damping member 40 and the fixing frame 20 are hingedly connected. When the trigger portion 302 applies force, the damping member 40 does not simply perform linear motion, but rotates around the hinge point, so that the damping member 40 has greater flexibility and adaptability, and can be adjusted according to the specific situation of the unwinding reel to ensure the accurate application of the damping force. This design not only improves the accuracy of the damping effect, but also enhances the reliability and durability of the device.

[0069] Furthermore, Figure 4 and Figure 5 As shown, the fixing frame 20 is provided with a through hole 200, the size of which matches the outer diameter of the second adjusting member 32, so as to fix the second adjusting member 32 to the fixing frame 20, and prevent the second adjusting member 32 from being offset during operation through the provided through hole 200. Furthermore, the through hole 200 is arranged to be inclined, so that the second adjusting member 32 and the horizontal plane form a preset angle.

[0070] For details, please refer to the manual. Figure 5 The attached drawings show the implementation form of the through hole 200 in an inclined setting. It is easy to understand that the form of the through hole 200 in a non-inclined setting is similar, which is not shown here. According to the attached drawings, the inclined through hole 200 allows the second adjustment member 32 to be installed at a certain angle on the fixing frame 20, so that the contact between the first adjustment member 31 and the unwinding disk 5 is more accurate and effective, and the first adjustment member 31 can better adapt to the geometric shape of the unwinding disk 5 during the movement, thereby providing a more accurate damping effect.

[0071] Based on the above, in one embodiment, one end of the fixing frame 20 has two partition segments 21 , each partition segment 21 has a half hole, and the two half holes are correspondingly combined to form a through hole 200 for the second adjusting member 32 to pass through.

[0072] At the same time, the partition segment 21 has a certain degree of deformability, and by controlling the gap between the two partition segments 21, for example, by bending the partition segment 21, the aperture size of the through hole 200 can be adjusted, thereby realizing the rapid assembly and disassembly of the second adjustment member 32. This design not only improves the convenience of assembly and disassembly of the adjustment member, but also increases the flexibility and adaptability of the entire device.

[0073] Based on the above embodiments, a locking hole 210 is provided at one end of the fixing frame 20 close to the partition section 21. The locking hole 210 penetrates through both of the partition sections 21 and forms an avoidance for the through hole 200, so that the locking member can pass through the locking hole 210 and lock the two partition sections 21 at the same time to fasten the second adjusting member 32 arranged in the through hole 200.

[0074] When it is necessary to install or disassemble the second adjusting member 32, the two partition sections 21 can be locked by a locking member (such as a bolt, a screw, etc.). An operator passes the locking member through the locking hole 210 and applies pressure to the partition sections 21 to make them closely fit (tighten inward), thereby fixing the second adjusting member 32 and ensuring the stability and reliability of the second adjusting member 32 during the operation.

[0075] In one embodiment, refer to the appended drawings of the specification Figure 6 According to another aspect of the present application, the present application further provides an expansion device, including an expansion main body 8, a unwind reel 5, a wire pay-off frame 6, a traction device 7 and the above damping device 1.

[0076] The unwind reel 5 is rotatably arranged on the wire pay-off frame 6 and is used for loading the pipe to be expanded; the wire pay-off frame 6 is fixed on the working ground or a preset position to ensure the stability of the device; the traction device 7 is used for traction of the pipe, and the damping device 1 is used for immediately assisting the unwind reel 5 to stop rotating after the traction stops. During the pipe expansion process, the traction device 7 first pulls the pipe out from the unwind reel 5. When the traction stops, through the action of the damping device 1, it can assist the unwind reel 5 to complete braking in a short time, reduce the excessive unwinding of the pipe caused by the inertia effect, achieve a relatively precise tension control through the damping device 1, and thus can ensure the uniformity and quality of the pipe expansion molding.

[0077] More specifically, after the traction device 7 pulls the pipe out from the unwind reel 5, the pipe is conveyed to the inlet of the expansion main body 8. In the expansion main body 8, the pipe will pass through an expansion die or an expansion device and be expanded into a specific shape and size according to different application requirements. According to the requirements of the production process, the expanded pipe may sequentially pass through a forming device, a cutting device, a cooling system and a quality inspection station, and finally be conveyed to a winding device for winding and packaging, or temporarily stored in a buffer storage area for subsequent processing or transportation.

[0078] It should be noted that the above embodiments can be freely combined according to needs. The above are only the preferred embodiments of the present application. It should be pointed out that for those of ordinary skill in the art, without departing from the principle of the present application, several improvements and refinements can still be made, and these improvements and refinements should also be regarded as the protection scope of the present application.

Claims

1. A damping device, characterized in that: Auxiliary stop for unwinding reel, including: Fixed frame; A damping member, movably connected to the fixing frame, and used to come into contact with the outer periphery of the unwinding drum to assist the unwinding drum in stopping rotation; An adjusting component is arranged on the fixing frame, and comprises an operating part and a triggering part. The triggering part and the operating part are cooperatively connected, and the triggering part contacts with a surface of one side of the damping member, so that the triggering part can be synchronously driven to move by controlling the operating part, so that the triggering part pushes the damping member to abut against the outer periphery of the unwinding disk to provide a damping effect.

2. The damping device according to claim 1, characterized in that: The adjustment assembly includes a first adjustment member and a second adjustment member, wherein the second adjustment member is an internal hollow structure and is connected to the fixing frame to provide overall support for the adjustment assembly; The first adjusting member is sleeved inside the second adjusting member, the trigger portion is arranged at an end portion of the first adjusting member close to one side of the damping member, and the operating portion and the first adjusting member are cooperatively connected, so that when the operating portion is operated, the first adjusting member slides along the axial direction of the second adjusting member, thereby realizing the abutment of the trigger portion relative to the outer periphery of the unwinding disk.

3. The damping device according to claim 2, characterized in that: The operating part is rotatably connected to an end portion of the second adjusting member away from the damping member, the operating part is provided with a through hole, and the inner periphery of the through hole and the outer periphery of the first adjusting member are provided with corresponding thread structures, so that the first adjusting member can pass through the through hole to form a threaded matching connection with the operating part; A limiting structure is also provided between the outer periphery of the first adjusting member and the inner periphery of the second adjusting member, for limiting the circumferential rotation of the first adjusting member, so that when the operating portion rotates, the first adjusting member can generate an axial displacement.

4. The damping device according to claim 3, characterized in that: The limiting structure includes a limiting nut, which is fixed to the outer periphery of the first adjusting member, and the outer periphery contour of the limiting nut corresponds to the inner periphery contour of the second adjusting member, and both are non-circular contours; and / or, The adjustment component also includes an elastic member, which is located between the limiting structure and the operating part and is sleeved on the outer periphery of the first adjustment member. One side of the elastic member abuts against the limiting structure. When the first adjustment member is displaced, the elastic member contracts or stretches accordingly.

5. The damping device according to any one of claims 2 to 4, characterized in that: The fixing frame is provided with a through hole adapted to the second adjusting member, and the second adjusting member is inserted into the through hole.

6. The damping device according to claim 5, characterized in that: The through hole is arranged obliquely so that the second adjusting member forms a preset angle with the horizontal plane; One end of the fixing frame includes two partition segments, each of which has a half hole, and the two half holes correspond to form a through hole, and the partition segment can be deformed so that the aperture of the through hole can be adjusted by controlling the gap between the two partition segments for installation and removal of the second adjustment member.

7. The damping device according to claim 6, characterized in that: The fixing frame is provided with a locking hole at one end portion close to the partition segment. The locking hole passes through the two partition segments at the same time and avoids the through hole, so that the locking member can pass through the locking hole to lock the two partition segments at the same time, so as to tighten the second adjustment member arranged in the through hole.

8. The damping device according to claim 5, characterized in that: When the first adjusting member extends the longest distance toward the damping member, the damping device has a first limit state to assist in stopping the unwinding reel with a diameter of 900 mm; When the first adjusting member extends to the damping member by the shortest distance, the damping device has a second limit state to assist in stopping the unwinding reel with a diameter of 1200 mm.

9. The damping device according to any one of claims 1-4, 6-8, characterized in that: The damping member and the fixing frame are hingedly connected, so that the triggering part can push the damping member to rotate; and / or, A wear-resistant layer is arranged on a surface of the damping member on a side away from the triggering portion.

10. An expansion device, characterized in that include: Expansion host, used to process the pipe to be expanded; An unwinding reel and a pay-off stand, wherein the pay-off stand is arranged on the working ground or a preset position, and the unwinding reel can be rotatably arranged on the pay-off stand for loading the pipe to be expanded; A traction device, used for traction of the tubular material to be expanded and conveying it to the expansion main machine; The damping device according to any one of claims 1 to 9 is used to assist in stopping the unwinding reel.

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