A winding machine drum changing device and method

Abstract

This invention discloses a winding machine winding drum replacement device and method in the field of winding drum replacement technology, including a support frame; a front support part disposed at the front end of the support frame, the front support part having a circumferential positioning surface that can cooperate with a positioning reference surface on an end flange for circumferential positioning support of the winding drum; and an end support part disposed at the end of the support frame, the end support part having a radial positioning surface that can cooperate with the outer circumferential surface of the winding drum for radial positioning support of the winding drum. This invention achieves circumferential positioning support of the end flange through the stop cooperation between the circumferential positioning surface of the front support part and the positioning reference surface of the end flange, and achieves radial positioning support of the end of the winding drum through the abutment cooperation between the radial positioning surface of the end support part and the outer circumferential surface of the end of the winding drum, thereby realizing rapid connection between the winding drum and the gearbox.

Description

Technical Field

[0001] This invention relates to the field of roll replacement technology, and specifically to a roll replacement device and method for a winding machine. Background Technology

[0002] In the strip steel (aluminum) production line unit maintenance industry, the common practice for overhauling coiler drums is to erect maintenance platforms and scaffolding, using hand-operated hoists and slings for disassembly and assembly, combined with overhead crane lifting. However, this method has drawbacks such as high risk and long operation time. Furthermore, because the end flange at the front of the drum is connected to the gearbox with 12 M56 high-strength bolts, it is difficult to adjust the bolt position using a hand-operated hoist, resulting in a long drum replacement operation time. In addition, due to the hoisting requirements, the drum needs to be leveled with a spirit level during installation, which greatly complicates the maintenance process.

[0003] Patent document CN111137718A discloses a method for replacing the drum of a winding machine. This method uses a special tooling on the unloading trolley that moves with the trolley to keep the drum in a horizontal position during replacement, reducing the difficulty and time of drum replacement. However, this method still requires adjusting the bolt position using a hand-operated hoist, which limits the improvement of drum replacement efficiency. Summary of the Invention

[0004] In view of this, the purpose of the present invention is to provide a winding machine drum changing device to solve the technical problem of low changing efficiency in existing drum changing methods.

[0005] The technical solution adopted in this invention is: a winding machine drum changing device, comprising:

[0006] A support frame for detachable and fixed connection with the winding trolley;

[0007] The front-end support is located at the front end of the support frame. The front-end support has a circumferential positioning surface, which can cooperate with the positioning reference surface on the end flange to provide circumferential positioning support for the drum.

[0008] An end support portion is provided at the end of the support frame. The end support portion has a radial positioning surface that can cooperate with the outer circumferential surface of the drum to provide radial positioning support for the drum.

[0009] Preferably, the front support portion includes a support block, and the top of the support block is provided with the circumferential positioning surface.

[0010] Preferably, the support block has a positioning block on its circumferential positioning surface. The positioning block can be inserted into the positioning groove of the end flange and axially position the drum.

[0011] Preferably, the end support portion includes a first support plate and a second support plate. The first support plate has a first radial support surface, and the second support plate has a second radial support surface. The first radial support surface and the second radial support surface constitute the radial positioning surface. The first support plate and the second support plate are movably disposed on the support beam at the end of the support frame so that the distance between the first radial support surface and the second radial support surface is adjustable.

[0012] Preferably, limiting blocks are provided on both the front and rear sides of the first and second support plates, and horizontal guide grooves are provided on the front and rear sidewalls of the first and second support plates. The protrusions on the limiting blocks are slidably connected to the horizontal guide grooves. A fixing block is provided at one of the opposite ends of the first and second support plates. A horizontal screw is threaded onto the fixing block, and the end of the horizontal screw is rotatably connected to the first or second support plate.

[0013] Preferably, a locking nut is threaded onto the horizontal screw, and the locking nut abuts against the fixing block to prevent the horizontal screw from loosening.

[0014] Preferably, the device further includes a first connecting portion for detachably connecting the support frame to the winding trolley; the first connecting portion includes a positioning pin disposed on the support frame.

[0015] Preferably, the support frame includes longitudinal beams and transverse beams, with two longitudinal beams arranged in parallel and at least two transverse beams fixedly connected to the lower part of the longitudinal beams; at least two positioning pins are provided on the transverse beams.

[0016] Preferably, the device further includes a second connecting portion for connecting the support frame to the lifting tool;

[0017] The second connecting part is a lifting ring, which is disposed on the longitudinal beam.

[0018] Another object of the present invention is to provide a method for changing the drum of a winding machine, the method using the above-mentioned changing device, the method comprising the following steps:

[0019] S10: Drum disassembly operation; including:

[0020] S11: Use lifting tools to lift the replacement device onto the winding trolley at the unit outlet position, and fix the replacement device to the winding trolley;

[0021] S12: Move the winding trolley directly below the drum, and by raising and lowering the winding trolley, make the circumferential positioning surface of the front support of the changing device closely fit with the positioning reference surface of the end flange, and at the same time make the radial positioning surface of the end support of the changing device abut against the outer circumferential surface of the end of the drum.

[0022] S13: Remove the connecting bolts between the drum and the gearbox, move the disassembled drum to the outlet saddle position using the conveying trolley, and lift it away;

[0023] S20: Reel installation work; including

[0024] S21: Using the lifting tool, the changing device carrying the drum is lifted and transported to the winding trolley at the unit outlet position, and the changing device is fixedly connected to the winding trolley;

[0025] S22: Move the winding trolley to directly below the installation position of the roll, and lift the roll to the installation position by raising and lowering the winding trolley;

[0026] S23: Connect the drum to the gearbox using connecting bolts, move the changing device to the outlet saddle position using the conveying trolley, and lift it away.

[0027] The beneficial effects of this invention are:

[0028] 1. The replacement device of the present invention has a circumferential positioning surface on the front support portion of the support frame. When the front support portion contacts the end flange of the drum, the circumferential positioning surface can cooperate with the positioning reference surface of the end flange to circumferentially position and support the end flange. This not only prevents the drum from rotating circumferentially, but also ensures that when the drum is raised to the installation position, the end flange on the drum is aligned with the gearbox, quickly achieving the connection between the drum and the gearbox. The replacement device of the present invention also has a radial positioning surface on the end support portion of the support frame. When the end support portion contacts the drum, the radial support surface abuts against the outer circumferential surface of the drum end to provide radial support to the end of the drum, thereby keeping the drum in a horizontal state.

[0029] 2. The present invention provides a positioning block on the circumferential positioning surface of the front end support. When the circumferential positioning surface of the front end support is engaged with the positioning reference surface of the end flange, the positioning block can be inserted into the positioning groove of the end flange. The axial positioning of the drum on the changing device is achieved by the engagement of the positioning block and the stop of the positioning groove.

[0030] 3. The present invention provides an end support part at the end of the support frame. The end support part includes a first support plate and a second support plate that can move synchronously in opposite directions. The first radial support surface on the first support plate and the second radial support surface on the second support plate can form a radial positioning surface. By adjusting the distance between the first support plate and the second support plate, the radial positioning surface can provide radial positioning support for drums of different radial dimensions, thereby expanding the applicability of the replacement device.

[0031] 4. The present invention has a positioning pin on the crossbeam of the support frame. After the replacement device is hoisted onto the winding trolley, the positioning pin can be inserted into the positioning hole on the winding trolley to quickly achieve a fixed connection between the replacement device and the winding trolley.

[0032] 5. The replacement method of the present invention, through the cooperation of the replacement device and the winding trolley, not only enables the safe and quick disassembly and installation of the winding machine's drum, but also reduces construction difficulty and time, and saves manpower and resources. Attached Figure Description

[0033] Figure 1 This is a top view of the winding machine drum changing device of the present invention;

[0034] Figure 2 This is a front view of the winding machine drum changing device of the present invention;

[0035] Figure 3 This is a right view of the winding machine drum changing device of the present invention;

[0036] Figure 4 This is a left view of the winding machine drum changing device of the present invention;

[0037] Figure 5 This is a schematic diagram of the front support portion of the present invention;

[0038] Figure 6 This is a top view of the winding machine drum changing device of the present invention in use.

[0039] Figure 7 This is a front view of the winding machine drum changing device of the present invention in use.

[0040] Figure 8 This is a right view of the winding machine drum changing device of the present invention in use.

[0041] Figure 9 This is a left view of the winding machine drum changing device of the present invention in use.

[0042] Figure 10 This is a schematic diagram of the end flange of the drum.

[0043] Explanation of the reference numerals in the figure:

[0044] 10. Supporting framework;

[0045] 11. Longitudinal beam; 12. Cross beam; 13. Support beam;

[0046] 20. Front-end support section;

[0047] 21. Heightening block; 22. Support block; 23. Circumferential positioning surface; 24. Positioning block; 25. Guide ramp;

[0048] 30. End support section;

[0049] 31. First support plate; 32. Second support plate; 33. First radial support surface; 34. Second radial support surface; 35. Limiting block; 36. Horizontal guide groove; 37. Fixing block; 38. Horizontal screw; 39. Anti-loosening nut;

[0050] 40. First connecting part; 41. Positioning pin; 42. Locking pressure plate;

[0051] 50. Second connecting part;

[0052] 60. Supporting leg;

[0053] 70. Roll;

[0054] 80. End flange; 81. Ear plate; 82. Positioning groove; 83. Positioning reference surface. Detailed Implementation

[0055] The specific embodiments of the present invention will be further described in detail below with reference to the accompanying drawings. These embodiments are for illustrative purposes only and are not intended to limit the scope of the invention.

[0056] In the description of this invention, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for 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 the invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0057] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0058] Furthermore, in the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0059] Examples, such as Figures 1-10 As shown, a winding machine drum changing device is used for quick replacement of the winding machine drum; the changing device includes:

[0060] A support frame 10 is provided for a detachable fixed connection with the winding trolley.

[0061] A front-end support 20 is provided at the front end of the support frame 10, and the front-end support 20 is provided with a circumferential positioning surface 23. The circumferential positioning surface 23 can cooperate with the positioning reference surfaces 83 on both sides of the end flange 80 to provide circumferential positioning support for the drum 70.

[0062] An end support portion 30 is provided at the end of the support frame 10, and the end support portion 30 is provided with a radial positioning surface, which can cooperate with the outer circumferential surface of the drum 70 for radial positioning support of the drum 70.

[0063] The replacement device of this application has a circumferential positioning surface 23 on the front support portion 20 of the support frame 10. When the front support portion 20 contacts the end flange 80 of the drum 70, the circumferential positioning surface 23 can form a stop engagement with the positioning reference surface 83 of the end flange 80, which is used to circumferentially position and support the end flange 80. This not only prevents the drum 70 from rotating circumferentially, but also allows the end flange 80 on the drum 70 to align with the gearbox when the drum 70 is raised to the installation position, quickly achieving the connection between the drum 70 and the gearbox. The replacement device of this application also has a radial positioning surface on the end support portion 30 of the support frame 10. When the end support portion 30 contacts the drum 70, the radial positioning surface abuts against the outer circumferential surface of the end of the drum 70, which is used to radially support the end of the drum 70, thereby keeping the drum 70 in a horizontal state.

[0064] In one specific embodiment, such as Figure 1 , Figure 2 , Figure 3 , Figure 5, Figure 10 As shown, the front support 20 includes a heightening block 21 and a support block 22. The heightening block 21 is fixedly connected to the front end of the longitudinal beam 11 of the support frame 10 by welding, and the support block 22 is detachably connected to the top of the heightening block 21 by bolts. A circumferential positioning surface 23 is provided on the top of the support block 22, that is, the upper surface of the support block 22 is the circumferential positioning surface 23. With this configuration, the height of the support block 22 is increased by the heightening block 21 fixedly welded to the end of the support frame 10, preventing the drum 70 from interfering with the support frame 10 when it is placed on the front support 20. During the process of the replacement device rising with the winding trolley, after the circumferential positioning surface 23 of the support block 22 coincides with the positioning reference surface 83 of the end flange 80 at the end of the drum 70, the support block 22 of the front support part 20 can provide axial support and positioning for the end flange 80 of the drum 70. In other words, the front support part 20 provides axial support and positioning for the drum 70 to prevent the drum 70 from rotating circumferentially during the replacement process.

[0065] In one specific embodiment, such as Figure 10 As shown, the end flange 80 is provided with lugs 81 on both the left and right sides, and the upper and lower surfaces of the lugs 81 are both positioning reference surfaces 83. Positioning grooves 82 are provided on the upper and lower sides of the lugs 81 in the horizontal direction. Figure 1 , Figure 2 , Figure 3 , Figure 5 As shown, a positioning block 24 is integrally formed on the circumferential positioning surface 23 of the support block 22. The front-to-back dimension of the positioning block 24 is smaller than that of the support block 22 in the front-to-back direction, so that the support block 22 and the positioning block 24 are connected in a stepped shape with a smaller top and a larger bottom. This allows the positioning reference surface 83 of the end flange 80 to fit against the circumferential positioning surface 23 on the support block 22 as the front support part 20 and the end flange 80 approach each other. The positioning block 24 can be inserted into the positioning groove 82 of the end flange 80. The drum 70 is axially positioned by the stop cooperation between the front and rear side walls of the positioning block 24 and the inner side wall of the positioning groove 82.

[0066] Preferred, such as Figure 5 As shown, a guide ramp 25 is provided on the top of the positioning block 24 to guide the positioning block 24 into the positioning groove 82 of the end flange 80. With this configuration, as the front support 20 and the end flange 80 approach each other, the guide ramp 25 guides the positioning block 24 into the positioning groove 82.

[0067] In one specific embodiment, such as Figure 1 , Figure 3As shown, the end support portion 30 includes a first support plate 31 and a second support plate 32. The first support plate 31 has a first radial support surface 33, and the second support plate 32 has a second radial support surface 34. The first radial support surface 33 and the second radial support surface 34 are mirror-symmetrically arranged and form a radial positioning surface. The first support plate 31 and the second support plate 32 are movably arranged on the support beam 13 at the end of the support frame 10, so that the distance between the first radial support surface 33 and the second radial support surface 34 is adjustable. With this arrangement, the end support portion 30 is composed of the first support plate 31 and the second support plate 32, and the first radial support surface 33 on the first support plate 31 and the second radial support surface 34 on the second support plate 32 form a mirror-symmetrical V-shaped radial positioning surface, so that the radial positioning surface of the end support portion 30 abuts against the outer circumferential surface of the end of the drum 70 for radial positioning and support of the drum 70. Meanwhile, by adjusting the distance between the first support plate 31 and the second support plate 32, the opening size of the V-shaped radial positioning surface of the end support part 30 can be adjusted to accommodate radial positioning support of the drum 70 with different radial dimensions.

[0068] It should be noted that the distance between the first support plate 31 and the second support plate 32 can be adjusted using any known adjustment method. The following description, however, is merely an example to illustrate a completely new structure. Figure 3 As shown, limiting blocks 35 are provided on both the front and rear sides of the first support plate 31 and the second support plate 32, and horizontal guide grooves 36 are provided on the front and rear side walls of the first support plate 31 and the second support plate 32. The limiting blocks 35 are fixedly connected to the support beam 13 at the end of the support frame 10 by welding, and a hemispherical protrusion is provided on one side of the limiting block 35, which is slidably connected in the horizontal guide groove 36. A fixing block 37 is provided at the opposite ends of the first support plate 31 and the second support plate 32. The fixing block 37 is fixedly connected to the support beam 13 at the end of the support frame 10 by welding, and a threaded through hole is provided in the fixing block 37 in the horizontal direction. A horizontal screw 38 is threadedly connected in the threaded through hole. One end of the horizontal screw 38 is an operating end that cooperates with the screwing operation, and the other end is rotatably connected to the first support plate 31 or the second support plate 32 through a bearing. With this configuration, a limiting block 35 and a fixing block 37 are provided on the support beam 13 at the end of the support frame 10. The limiting block 35 is slidably connected to the horizontal guide groove 36 on the first support plate 31 or the second support plate 32 through the protrusion on the limiting block 35, which is used to guide the horizontal movement of the first support plate 31 and the second support plate 32 on the support beam 13. The first support plate 31 and the second support plate 32 are driven to move away from each other or move closer to each other by the screw 38 in the threaded through hole on the fixing block 37, so as to adjust the distance between the first support plate 31 and the second support plate 32, that is, to adjust the distance between the first radial support surface 33 and the second radial support surface 34.

[0069] More preferably, such as Figure 3 As shown, a locking nut 39 is threaded onto the horizontal screw 38. The locking nut 39 abuts against the fixing block 37 to prevent the horizontal screw 38 from loosening. This is because some vibration inevitably occurs during the replacement of the drum 70. This vibration can cause the horizontal screw 38 to loosen in the threaded through hole of the fixing block 37, thereby affecting the radial positioning support of the radial positioning surface at the end of the drum 70. Therefore, the locking nut 39 is threaded onto the horizontal screw 38, and by abutting against the fixing block 37, the locking nut 39 prevents the horizontal screw 38 from loosening, thus ensuring the radial positioning support of the end support 30 at the end of the drum 70.

[0070] In one specific embodiment, such as Figure 4 As shown, the replacement device also includes a first connecting part 40, which is used to detachably connect the support frame 10 to the winding trolley.

[0071] The first connecting part 40 can be any known structure. The following description, only as an example, details a completely new structure, such as... Figure 1 As shown, the first connecting part 40 includes a positioning pin 41, which is disposed on the crossbeam 12 of the support frame 10. This is because inserting the positioning pin 41 on the support frame 10 into the positioning hole of the winding trolley allows for a detachable connection between the changing device and the winding trolley, which has the advantages of convenient connection and easy disassembly. This can greatly shorten the connection time between the winding trolley and the changing device, and indirectly shorten the replacement time of the winding 70.

[0072] Specifically, the crossbeam 12 of the support frame 10 is provided with two pin holes, and the positioning pins 41 are inserted into the pin holes one by one. A locking plate 42 is fixedly connected to the top of the crossbeam 12 by bolts. The locking plate 42 is at least partially disposed above the pin holes to prevent the positioning pins 41 from moving axially in the pin holes.

[0073] In one specific embodiment, such as Figure 1 , Figure 2 As shown, the device also includes a second connecting part 50, which is used to connect the support frame 10 to the lifting tool. Specifically, the second connecting part 50 is a lifting ring, which is set on the longitudinal beams 11 of the support frame 10, with three lifting rings on each longitudinal beam 11. With this configuration, after connecting the lifting tool to the lifting rings of the changing device, the changing device can be lifted onto the winding trolley or removed from the winding trolley by the lifting tool.

[0074] In one specific embodiment, such as Figure 1 , Figure 3As shown, the support frame 10 is generally H-shaped and includes longitudinal beams 11 and transverse beams 12. Two longitudinal beams 11 are arranged in parallel, and at least two transverse beams 12 are fixedly welded to the lower part of the longitudinal beams 11. Support beams 13 are fixedly connected to the ends of the longitudinal beams 11 for the installation and fixation of the end support parts 30. With this configuration, after the replacement device is hoisted onto the winding trolley, the transverse beams 12 of the support frame 10 contact the winding trolley and are supported by the winding trolley.

[0075] Preferred, such as Figure 2 , Figure 3 , Figure 4 As shown, support legs 60 are vertically welded to both ends of each crossbeam 12. With this configuration, after the changing device is lifted off the winding trolley, it can be supported on the workshop floor by the support legs 60.

[0076] An embodiment provides a method for changing the drum of a winding machine, wherein the method uses the aforementioned changing device, such as... Figure 6 , Figure 7 , Figure 8 , Figure 9 As shown, the method includes the following steps:

[0077] S10: Disassembly of drum 70; specifically includes:

[0078] S11: Use a lifting tool to lift the replacement device onto the winding trolley at the unit outlet position and fix the replacement device to the winding trolley; specifically: use a crane to lift the replacement device onto the winding trolley at the unit outlet position, and insert the positioning pin 41 of the replacement device into the positioning hole of the winding trolley, and the support frame 10 of the replacement device is supported on the winding trolley, with the support legs 60 of the replacement device located on both sides of the winding trolley.

[0079] S12: Move the winding trolley to directly below the drum 70, and through the raising and lowering of the winding trolley, make the circumferential positioning surface 23 of the front support part 20 of the changing device tightly fit with the positioning reference surface 83 of the end flange 80, and at the same time make the radial positioning surface of the end support part 30 of the changing device abut against the outer circumferential surface of the end of the drum 70; specifically: operate the horizontal movement of the winding trolley to move the changing device directly below the drum 70, and operate the raising and lowering of the winding trolley to make the front support part 20 and the end support part 30 of the changing device slowly... The drum rises slowly until the circumferential positioning surface 23 of the front support 20 coincides with the positioning reference surface 83 of the end flange 80, and the positioning block 24 on the circumferential positioning surface 23 is inserted into the positioning groove 82 of the end flange 80. Then, the horizontal screw 38 of the end support 30 is rotated, and the rotation of the horizontal screw 38 drives the first support plate 31 and the second support plate 32 to move in opposite directions until the first radial support surface 33 and the second radial support surface 34 respectively abut against the outer circumferential surface of the end of the drum 70, thereby realizing the radial positioning support of the end of the drum 70.

[0080] S13: Remove the connecting bolts between the drum 70 and the gearbox, move the disassembled drum 70 to the outlet saddle position using the winding trolley, and lift it away; specifically: maintenance personnel begin to remove the 12 connecting bolts between the drum 70 and the gearbox. After all the connecting bolts are removed, the replacement device and the drum 70 are moved to the outlet saddle position by lifting and translating the winding trolley, and the replacement device and the drum 70 are lifted away from the winding trolley.

[0081] S20: Installation of drum 70; specifically including...

[0082] S21: Use a lifting tool to lift the replacement device carrying the new drum 70 onto the winding trolley at the unit outlet position, and fix the replacement device to the winding trolley; specifically: use a crane to lift the replacement device carrying the new drum 70 onto the winding trolley at the unit outlet position, and insert the positioning pin 41 of the replacement device into the positioning hole of the winding trolley, and the support frame 10 of the replacement device is supported on the winding trolley, with the support legs 60 of the replacement device located on both sides of the winding trolley.

[0083] S22: Move the winding trolley to directly below the installation position of the drum 70, and raise the drum 70 to the installation position by lifting the winding trolley; specifically: operate the horizontal movement of the winding trolley to move the changing device directly below the drum 70, operate the lifting of the winding trolley to slowly raise the front support 20 and the end support 30 of the changing device until the drum 70 rises to the installation position.

[0084] S23: Connect the drum 70 to the gearbox using connecting bolts, move the replacement device to the outlet saddle position using the winding trolley, and then lift it away; specifically: maintenance personnel use 12 connecting bolts to fix the end flange 80 of the drum 70 to the gearbox. After all the connecting bolts are installed, move the replacement device to the outlet saddle position by lifting and translating the winding trolley, and then lift the replacement device away from the winding trolley.

[0085] Compared with the prior art, this application has at least the following beneficial technical effects:

[0086] 1. After the replacement device is used, the C171, C172 and C173 rewinding units of cold rolling mills no longer need to be equipped with scaffolding or use slings and hand hoists to lift the drum 70 during maintenance operations. This eliminates the safety hazards during the lifting of the drum 70 and avoids the safety accidents that may be caused by people standing under high-altitude suspended objects.

[0087] 2. The replacement device will not cause the drum to tilt 70 degrees during use, and there is no need to use a level to align it.

[0088] 3. Short maintenance time: Before using the replacement device, the replacement of the 70 drum required 6 workers and took 48 man-hours; after using the replacement device, only 2 workers and 6 man-hours are needed to complete the replacement of the 70 drum, which effectively shortens the operation time and saves maintenance costs.

[0089] 4. The replacement device has a compact structure and can be used well with the unit's outlet winding trolley. It is easy to disassemble and assemble, and is suitable for occasions where personnel cannot stand in a convenient position, hoisting is difficult, and the installation accuracy of the 70mm drum is high.

[0090] 5. The replacement device can be used as a support for placing the 70 roll.

[0091] 6. The replacement device serves as a leverage point and maintenance platform during the disassembly and assembly of the drum 70. It not only solves the problems of cumbersome hoisting, inconvenient personnel positioning, and difficult installation during the replacement of the drum 70, but also ensures personal safety and improves work efficiency.

[0092] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and substitutions can be made without departing from the technical principles of the present invention, and these improvements and substitutions should also be considered within the scope of protection of the present invention.

Claims

1. A winding machine drum replacement device, wherein an end flange (80) is provided at one end of the drum (70), and ear plates (81) are provided on both the left and right sides of the end flange (80), the upper and lower surfaces of the ear plates (81) are positioning reference surfaces (83), and positioning grooves (82) are provided on the upper and lower sides of the ear plates (81) in the horizontal direction; characterized in that, The replacement device includes: A support frame (10) is provided for a detachable fixed connection with the winding trolley; The front end support (20) is located at the front end of the support frame (10). The front end support (20) is provided with a circumferential positioning surface (23). The circumferential positioning surface (23) can cooperate with the positioning reference surface (83) on the end flange (80) to provide circumferential positioning support for the drum (70). An end support (30) is provided at the end of the support frame (10). The end support (30) is provided with a radial positioning surface, which can cooperate with the outer circumferential surface of the drum (70) to provide radial positioning support for the drum (70). The front end support (20) includes a heightening block (21) and a support block (22). The heightening block (21) is fixedly connected to the front end of the support frame (10), and the support block (22) is connected above the heightening block (21). The circumferential positioning surface (23) is provided on the top of the support block (22). The support block (22) has a positioning block (24) on its circumferential positioning surface (23). The positioning block (24) can be inserted into the positioning groove (82) of the end flange (80) and axially position the drum (70).

2. The winding machine drum changing device according to claim 1, characterized in that, The end support (30) includes a first support plate (31) and a second support plate (32). The first support plate (31) is provided with a first radial support surface (33), and the second support plate (32) is provided with a second radial support surface (34). The first radial support surface (33) and the second radial support surface (34) form the radial positioning surface. The first support plate (31) and the second support plate (32) are movably disposed on the support beam (13) at the end of the support frame (10) so that the distance between the first radial support surface (33) and the second radial support surface (34) is adjustable.

3. A winding machine drum changing device according to claim 2, characterized in that, Limiting blocks (35) are provided on both the front and rear sides of the first support plate (31) and the second support plate (32), and horizontal guide grooves (36) are provided on both the front and rear sidewalls of the first support plate (31) and the second support plate (32). The protrusions on the limiting blocks (35) are slidably connected in the horizontal guide grooves (36). A fixing block (37) is provided at one end of the first support plate (31) and the second support plate (32) that are opposite to each other. A horizontal screw (38) is threaded onto the fixing block (37), and the end of the horizontal screw (38) is rotatably connected to the first support plate (31) or the second support plate (32).

4. A winding machine drum changing device according to claim 3, characterized in that, A locking nut (39) is threaded onto the horizontal screw (38). The locking nut (39) abuts against the fixing block (37) to prevent the horizontal screw (38) from loosening.

5. A winding machine drum changing device according to claim 1, characterized in that, The device further includes a first connecting part (40) for detachably connecting the support frame (10) to the winding trolley; The first connecting part (40) includes a positioning pin (41), which is disposed on the support frame (10).

6. A winding machine drum changing device according to claim 5, characterized in that, The support frame (10) includes longitudinal beams (11) and transverse beams (12). The two longitudinal beams (11) are arranged in parallel, and at least two transverse beams (12) are fixedly connected to the lower part of the longitudinal beams (11). At least two positioning pins (41) are arranged on the transverse beams (12).

7. A winding machine drum changing device according to claim 6, characterized in that, The device further includes a second connecting part (50) for connecting the support frame (10) to the lifting tool; The second connecting part (50) is a lifting ring, which is disposed on the longitudinal beam (11).

8. A method for changing the drum of a winding machine, wherein the method uses the changing device according to any one of claims 1-7, characterized in that, The method includes the following steps: S10: Disassembly of the drum (70); including: S11: Use lifting tools to lift the replacement device onto the winding trolley at the unit outlet position, and fix the replacement device to the winding trolley; S12: Move the winding trolley to directly below the drum (70), and by raising and lowering the winding trolley, make the circumferential positioning surface (23) of the front support part (20) of the changing device closely fit with the positioning reference surface (83) of the end flange (80), and at the same time make the radial positioning surface of the end support part (30) of the changing device abut against the outer circumferential surface of the end of the drum (70); S13: Remove the connecting bolts between the drum (70) and the gearbox, move the disassembled drum (70) to the outlet saddle position using the conveying trolley, and lift it away; S20: Installation of the drum (70); including S21: Using the lifting tool, the changing device carrying the drum (70) is lifted to the winding trolley at the unit outlet position, and the changing device is fixedly connected to the winding trolley; S22: Move the winding trolley to the installation position of the roll (70) directly below it, and lift the roll (70) to the installation position by raising and lowering the winding trolley; S23: Connect the drum (70) to the gearbox using connecting bolts, move the changing device to the outlet saddle position using the conveying trolley, and lift it away.

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