An automatic unwinding machine

Abstract

The utility model relates to narrow -band unwinding technical field especially relates to a kind of automatic unwinding machine.It includes fixed base plate and the limiting component being vertically arranged on fixed base plate, the limiting component includes two parallel and symmetrically arranged limiting plates, lifting mechanism is equipped on the limiting plate of front side, clamping drive mechanism is equipped on the limiting plate of rear side.It structure design is reasonable, easy to operate, effectively limiting to steel band in unwinding process, can avoid the phenomenon of collapse, and, by actively controlling unwinding speed, passive to initiative, can accurately synchronous cooperation packing machine, further reduce the probability of collapse, simultaneously, steel band adopts the mode of suspension unwinding, to prevent abrasion steel band, do not affect the quality of packaging, also improve the service life of steel band, solve the problems existing in the prior art.

Description

Technical Field

[0001] This utility model relates to the field of narrow-band unwinding technology, and in particular to an automatic unwinding machine. Background Technology

[0002] Steel strip, also known as steel strip, is a narrow and long flat steel material. In production workshops, steel strip is typically handled manually, with a reel removed and placed on an unwinding rack for equipment use. However, this method has several drawbacks: First, because a single reel of steel strip is narrow, it is prone to breakage during unwinding, which is not only dangerous but also affects packaging efficiency. Second, since the bottom of the steel strip is in direct contact with the unwinding rack, it is easily worn down by the equipment as it is continuously pulled out, affecting packaging quality and reducing the lifespan of the steel strip. Third, the steel strip is always in a passive state during the pulling process and cannot precisely synchronize with the equipment, further increasing the probability of breakage. Utility Model Content

[0003] To overcome the shortcomings of existing technologies, this utility model provides an automatic unwinding machine with a reasonable structural design and convenient operation. By effectively limiting the steel strip during the unwinding process, it can prevent the phenomenon of strip breakage. Furthermore, by actively controlling the unwinding speed, it transforms passive operation into active operation and can precisely synchronize with the equipment, further reducing the probability of strip breakage. At the same time, the steel strip adopts a suspended unwinding method, which prevents wear on the steel strip, does not affect the packaging quality, and also improves the service life of the steel strip, thus solving the problems existing in the prior art.

[0004] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows:

[0005] An automatic unwinding machine includes a fixed base plate and a limiting assembly vertically mounted on the fixed base plate. The limiting assembly includes two parallel and symmetrically arranged limiting plates. A lifting mechanism is provided on the front limiting plate, and a clamping drive mechanism is provided on the rear limiting plate. The lifting mechanism includes lifting guide rails symmetrically arranged vertically on the front sidewall of the limiting plates. A lifting fixed plate is horizontally mounted above the two lifting guide rails. A lifting support platform is provided in the middle of the front sidewall of the lifting fixed plate. A screw jack is mounted on the lifting support platform, and a lifting motor is mounted on the screw jack. A lifting linkage plate is horizontally positioned below the lifting support platform. Lifting sliders that mate with the corresponding lifting guide rails are respectively provided on the rear side wall of the lifting linkage plate at the position of the two lifting guide rails. A lifting linkage platform is provided on the lifting linkage plate at the position of the corresponding lifting support platform. The lower end of the lifting screw of the screw jack moves through the lifting support platform and connects to the lifting linkage platform. Lifting elongated holes are symmetrically and vertically provided on the limiting plates on the outer sides of the two lifting guide rails. Lifting brackets are movably engaged between the two limiting plates. The lifting brackets are connected to the lifting linkage plate through the lifting elongated holes on the corresponding sides via connecting plates set at their left and right ends. Limiting round holes are symmetrically provided in the middle of the two limiting plates above the lifting guide rails.

[0006] Optionally, the clamping drive mechanism includes a base mounted on a fixed base plate, a base plate mounted on the base, a drive box mounted in the middle of the base plate surface, a chuck motor mounted on the rear side wall of the drive box, the output shaft of which horizontally moves into the drive box and is connected to a central shaft located inside the drive box, the front end of the central shaft passing out of the drive box and connected to a mechanical chuck, the rotation of the central shaft controlling the retraction of each jaw on the mechanical chuck, and the mechanical chuck being aligned with the limiting hole of the limiting plate and coaxial with it, a gearbox covering the mechanical chuck being mounted on the front side wall of the drive box, a displacement component controlling the extension and retraction of the mechanical chuck being mounted on the right side wall of the drive box, and a rotation component controlling the rotation of the mechanical chuck being mounted on the rear side wall of the gearbox on the left side of the drive box.

[0007] Optionally, the displacement assembly includes a displacement motor mounted on the right side wall of the drive housing. The output shaft of the displacement motor passes horizontally into the drive housing and is connected to a displacement worm gear movably mounted inside the drive housing. The displacement worm gear is perpendicular to the central shaft and located below the central shaft. A displacement sleeve is movably sleeved on the central shaft inside the drive housing. The outer wall of the displacement sleeve is threaded. A displacement worm wheel that mates with the displacement worm gear is threaded onto the displacement sleeve. The front and rear ends of the displacement worm wheel are respectively fixed inside the drive housing by worm wheel bearings. A connecting plate is movably sleeved at the front end of the displacement sleeve. The displacement sleeve is connected to the connecting plate by a chuck bearing. A gear chuck connected to a mechanical chuck is fixedly sleeved on the connecting plate.

[0008] Optionally, the rotating assembly includes a rotary motor disposed on the rear side wall of the gearbox, the output shaft of the rotary motor being movably connected through the gearbox to a pinion, which meshes with a gear chuck.

[0009] Optionally, both the left and right sides of each of the limiting plates are bent outwards.

[0010] Optionally, partition plates are provided at both ends of the fixed base plate between the two limiting plates.

[0011] Optionally, the surface of the lifting bracket is recessed downwards, and its cross-section is V-shaped.

[0012] Optionally, a protective shell covering the lifting mechanism is provided on the front limiting plate, and a perforation is provided on the top of the protective shell corresponding to the lifting screw position.

[0013] Optionally, it also includes a follow-up mechanism disposed on the right side of the fixed base plate. The follow-up mechanism includes a base plate, the fixed base plate is disposed on the left side of the base plate, a first guide wheel is disposed on the right side of the base plate opposite to the two limiting plates, the first guide wheel is fixed on the base plate by a clamping seat, a support arm is disposed on the top of the protective shell, and a second guide wheel is disposed at the outer end of the support arm parallel to the first guide wheel.

[0014] The advantages of this utility model using the above-mentioned technical solution are: reasonable structural design and convenient operation. By effectively limiting the steel strip during the unwinding process, the phenomenon of roll breakage can be avoided. Furthermore, by actively controlling the unwinding speed, the passive is transformed into an active approach, which can accurately synchronize with the equipment and further reduce the probability of roll breakage. At the same time, the steel strip adopts a suspended unwinding method, which prevents wear on the steel strip, does not affect the quality of packaging, and also improves the service life of the steel strip. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0016] Figure 2 for Figure 1 A three-dimensional structural diagram showing the structure after removing the protective shell and support arms;

[0017] Figure 3 A three-dimensional structural diagram of the lifting bracket, lifting linkage plate, and connecting plate;

[0018] Figure 4 This is a schematic diagram of the rear three-dimensional structure of the present invention;

[0019] Figure 5 A three-dimensional structural diagram of the clamping drive mechanism;

[0020] Figure 6 for Figure 5 A schematic diagram of the rear structure;

[0021] Figure 7 for Figure 5 Schematic diagram of the cross-sectional structure along the middle AA direction;

[0022] Figure 8 A three-dimensional structural diagram of the clamping drive mechanism after removing the drive box and gearbox;

[0023] Figure 9 This is a three-dimensional structural diagram of a displacement motor, a displacement worm, and a displacement worm wheel;

[0024] In the diagram: 1. Fixed base plate; 2. Limiting plate; 3. Lifting guide rail; 4. Lifting fixing plate; 5. Lifting support platform; 6. Screw jack; 7. Lifting motor; 8. Lifting linkage plate; 9. Lifting slider; 10. Lifting linkage platform; 11. Lifting screw; 12. Lifting elongated hole; 13. Lifting chuck; 14. Connecting plate; 15. Limiting circular hole; 16. Base; 17. Base plate; 18. Drive box; 19. Chuck motor; 20. Central shaft ; 21. Mechanical chuck; 22. Gearbox; 23. Displacement motor; 24. Displacement worm gear; 25. Displacement sleeve; 26. Displacement worm wheel; 27. Worm wheel bearing; 28. Connecting disc; 29. ​​Chuck bearing; 30. Gear chuck; 31. Rotary motor; 32. Pinion; 33. Separator plate; 34. Protective shell; 35. Perforation; 36. Base plate; 37. First guide wheel; 38. Clamping seat; 39. Support arm; 40. Second guide wheel. Detailed Implementation

[0025] To clearly illustrate the technical features of this solution, the present invention will be described in detail below through specific embodiments and in conjunction with the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application; however, this application may also be implemented in other ways different from those described herein. Therefore, the scope of protection of this application is not limited to the specific embodiments disclosed below.

[0026] Furthermore, it should be understood in the description of this application that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," and "circumferential," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.

[0027] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances. In the description of this specification, references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that the specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in any suitable manner in one or more embodiments or examples.

[0028] like Figure 1-9As shown, in this embodiment, an automatic unwinding machine includes a fixed base plate 1 and a limiting assembly vertically arranged on the fixed base plate 1. The limiting assembly includes two parallel and symmetrically arranged limiting plates 2. A lifting mechanism is provided on the front limiting plate 2, and a clamping drive mechanism is provided on the rear limiting plate 2. The lifting mechanism includes lifting guide rails 3 symmetrically arranged on the left and right sides and vertically arranged on the front side wall of the limiting plate 2. A lifting fixing plate 4 is horizontally arranged above the two lifting guide rails 3. A lifting support platform 5 is provided in the middle of the front side wall of the lifting fixing plate 4. A screw jack 6 is installed on the lifting support platform 5. A lifting motor 7 is provided on the screw jack 6. A lifting linkage plate 8 is horizontally arranged below the lifting support platform 5. Lifting sliders 9 that cooperate with the corresponding lifting guide rails 3 are respectively provided on the rear side wall of the lifting linkage plate 8 at the position of the lifting guide rail 3. Lifting linkage platform 10 is provided on the lifting linkage plate 8 at the position of the corresponding lifting support platform 5. The lifting screw 11 of the screw jack 6 has its lower end moving through the lifting support platform 5 and connected to the lifting linkage platform 10. Lifting elongated holes 12 are symmetrically and vertically provided on the limiting plates 2 on the outer sides of the two lifting guide rails 3. Lifting brackets 13 are movably engaged between the two limiting plates 2. The lifting brackets 13 are connected to the lifting linkage plate 8 through the connecting plates 14 set at its left and right ends, respectively, passing through the lifting elongated holes 12 on the corresponding side. Limiting round holes 15 are symmetrically provided in the middle of the two limiting plates 2 above the lifting guide rails 3.

[0029] Optionally, the clamping drive mechanism includes a base 16 mounted on a fixed base plate 1, a base plate 17 mounted on the base 16, a drive box 18 located in the middle of the surface of the base plate 17, a chuck motor 19 mounted on the rear side wall of the drive box 18, the output shaft of which is horizontally movably inserted into the drive box 18 and connected to a central shaft 20 located inside the drive box 18, the front end of the central shaft 20 extending out of the drive box 18 and connected to a mechanical chuck 21, the rotation of the central shaft 20 controlling the retraction of each jaw on the mechanical chuck 21, and the mechanical chuck 21 being aligned with the limiting hole 15 of the limiting plate 2 and coaxial with it, a gearbox 22 covering the mechanical chuck 21 being mounted on the front side wall of the drive box 18, a displacement assembly controlling the extension and retraction of the mechanical chuck 21 being mounted on the right side wall of the drive box 18, and a rotation assembly controlling the rotation of the mechanical chuck 21 being mounted on the rear side wall of the gearbox 22 on the left side of the drive box 18.

[0030] Optionally, the displacement assembly includes a displacement motor 23 mounted on the right side wall of the drive housing 18. The output shaft of the displacement motor 23 extends horizontally into the drive housing 18 and is connected to a displacement worm gear 24 movably mounted inside the drive housing 18. The displacement worm gear 24 is perpendicular to the central shaft 20 and located below the central shaft 20. A displacement sleeve 25 is movably sleeved on the central shaft 20 inside the drive housing 18. The outer wall of the displacement sleeve 25 is threaded. A displacement worm wheel 26, which cooperates with the displacement worm gear 24, is threaded onto the displacement sleeve 25. The front and rear ends of the displacement worm wheel 26 are respectively fixed inside the drive housing 18 by worm wheel bearings 27. A connecting disc 28 is movably sleeved at the front end of the displacement sleeve 25. The displacement sleeve 25 is connected to the connecting disc 28 by a chuck bearing 29. A gear chuck 30 connected to a mechanical chuck 21 is fixedly sleeved on the connecting disc 28.

[0031] Optionally, the rotating assembly includes a rotary motor 31 mounted on the rear side wall of the gearbox 22. The output shaft of the rotary motor 31 movably passes through the gearbox 22 and is connected to a pinion 32, which meshes with a gear chuck 30. The thickness of the gear chuck 30 is no greater than half the thickness of the pinion 32 to ensure that the gear chuck 30 remains engaged with the pinion 32 throughout the extension and retraction of the mechanical chuck 21.

[0032] Optionally, both the left and right sides of each of the limiting plates 2 are bent outwards. The outer ends of the limiting plates on both sides are designed with wide openings, which greatly facilitates the insertion of the steel strip.

[0033] Optionally, partition plates 33 are provided at both ends of the fixed base plate 1 between the two limiting plates 2. The partition plates 33 can support the two limiting plates 2 to ensure the stability of the formed channel. On the other hand, they can provide some support and guidance when the steel strip is inserted, so that it can be smoothly engaged in the lifting bracket 13.

[0034] Optionally, the surface of the lifting bracket 13 is concave downwards, and its cross-section is V-shaped. When the steel strip is placed on the lifting bracket 13, the concave design at the top can better stabilize the steel strip and prevent it from swaying left and right.

[0035] Optionally, a protective shell 34 is provided on the front limiting plate 2 to cover the lifting mechanism, and a through hole 35 is provided on the top of the protective shell 34 corresponding to the position of the lifting screw 11. The protective shell 34 can protect the lifting mechanism and reduce the impact of dust and debris on the lifting mechanism.

[0036] Optionally, the system also includes a conveying mechanism located on the right side of the fixed base plate 1. This conveying mechanism includes a base plate 36, with the fixed base plate 1 positioned on the left side of the base plate 36. A first guide wheel 37 is located on the right side of the base plate 36, directly opposite the two limiting plates 2. The first guide wheel 37 is fixed to the base plate 36 via a clamping seat 38. A support arm 39 is located at the top of the protective shell 34, and a second guide wheel 40, parallel to the first guide wheel 37, is located at the outer end of the support arm 39. Through this conveying mechanism, when the steel strip exits the system, it passes under the first guide wheel 38 and then upwards to the left side of the second guide wheel 41. This allows for preliminary leveling of the exiting steel strip, minimizing bending and facilitating the use of subsequent processing equipment.

[0037] This device requires manual operation. A coil of steel strip is inserted from the left end of the limiting assembly, locking it between the two limiting plates 2. When the steel strip falls onto the lifting seat 13, the lifting motor 7 is activated. The output shaft of the lifting motor 7 drives the screw jack 6, which in turn moves the lifting screw 11 upward. As the lifting screw 11 moves upward, the lifting linkage plate 8 moves vertically upward along the two lifting guide rails 3 through the pull of the lifting linkage table 10. With the movement of the lifting linkage plate 8, the lifting seat 13 moves upward through the connecting plates 14 on both sides, ultimately achieving the lifting and lowering effect of the steel strip. When the inner center of the steel strip is aligned with the limiting hole 15, the lifting motor 7 stops operating. It should be noted that during the forward and backward displacement of the mechanical chuck 21, the end of the central shaft 20 will never disengage from the mechanical chuck 21.

[0038] Then, the displacement motor 23 is started. The output shaft of the displacement motor 23 drives the displacement worm 24 to rotate, which in turn drives the displacement worm wheel 26 meshing with it to rotate radially. As the displacement worm wheel 26 rotates, it drives the displacement sleeve 25, which is threadedly connected to it, to move forward continuously. The mechanical chuck 21 connected to it moves forward accordingly until the jaws on the mechanical chuck 21 enter the inner coil of the steel strip. At this time, the displacement motor 23 is stopped, and the chuck motor 19 is started. The output shaft of the chuck motor 19 drives the central shaft 20 to rotate radially. The columnar locking block at the front end of the central shaft 20 drives the mechanical chuck 21 to move, causing the jaws of the mechanical chuck 21 to extend outward, so that the jaws abut against the inner ring side wall of the steel strip. At this time, the lifting motor 7 is controlled to work in reverse, causing the lifting seat 13 to fall downward and separate from the steel strip. Finally, the rotary motor 31 is started. The output shaft of the rotary motor 31 drives the pinion 32 to rotate, which in turn drives the gear chuck 30 meshing with it to rotate. The gear chuck 30 then drives the mechanical chuck 21 to rotate radially, thereby achieving automatic unwinding. It should be noted that while the mechanical chuck 21 is rotating, it also causes the central shaft 20 to idle. This does not affect the retraction of the individual jaws on the mechanical chuck 21. Its structure is reasonably designed and easy to operate. By effectively limiting the steel strip during unwinding, it can prevent strip breakage. Furthermore, by actively controlling the unwinding speed, it transforms passive operation into active operation, allowing for precise synchronization with the equipment and further reducing the probability of strip breakage. Simultaneously, the steel strip is unwound in a suspended manner, preventing wear and tear on the steel strip, ensuring packaging quality, and extending the service life of the steel strip, thus solving problems existing in the prior art.

[0039] This device is not only used for the unwinding process of steel strips, but also applicable to other types of narrow strips.

[0040] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model, and they should all be covered within the scope of the claims and specification of this utility model. For those skilled in the art, any alternative improvements or transformations made to the implementation of this utility model fall within the protection scope of this utility model.

[0041] Any aspects of this utility model not described in detail are known to those skilled in the art.

Claims

1. An automatic unwinding machine, characterized in that, The device includes a fixed base plate and a limiting assembly vertically mounted on the fixed base plate. The limiting assembly includes two parallel and symmetrically arranged limiting plates. A lifting mechanism is provided on the front limiting plate, and a clamping drive mechanism is provided on the rear limiting plate. The lifting mechanism includes lifting guide rails symmetrically arranged on the left and right sides and vertically mounted on the front sidewall of the limiting plates. A lifting fixed plate is horizontally mounted on the upper end of the two lifting guide rails. A lifting support platform is provided in the middle of the front sidewall of the lifting fixed plate. A screw jack is mounted on the lifting support platform, and a lifting motor is mounted on the screw jack. A lifting linkage plate is horizontally mounted below the lifting support platform, corresponding to the two lifting guide rails. The lifting linkage plate at the lifting guide rail position is provided with lifting sliders that cooperate with the corresponding lifting guide rails on its rear side wall. The lifting linkage plate at the corresponding lifting support platform position is provided with a lifting linkage platform. The lifting screw of the screw jack moves through the lifting support platform and connects to the lifting linkage platform at its lower end. The limiting plates on the outer sides of the two lifting guide rails are provided with symmetrical and vertical lifting elongated holes. The lifting bracket is movably engaged between the two limiting plates. The lifting bracket is connected to the lifting linkage plate through the lifting elongated holes on the corresponding side by connecting plates set at its left and right ends. The two limiting plates above the lifting guide rails are provided with symmetrical limiting round holes in the middle.

2. The automatic unwinding machine according to claim 1, characterized in that, The clamping drive mechanism includes a base mounted on a fixed base plate, a base plate on the base, a drive box in the middle of the base plate surface, a chuck motor mounted on the rear side wall of the drive box, the output shaft of which moves horizontally through the drive box and is connected to a central shaft inside the drive box, the front end of the central shaft passing through the drive box and connected to a mechanical chuck, the rotation of the central shaft controlling the retraction of each jaw on the mechanical chuck, and the mechanical chuck being aligned with the limiting hole of the limiting plate and coaxial with it, a gearbox covering the mechanical chuck on the front side wall of the drive box, a displacement component controlling the extension and retraction of the mechanical chuck on the right side wall of the drive box, and a rotation component controlling the rotation of the mechanical chuck on the rear side wall of the gearbox on the left side of the drive box.

3. An automatic unwinding machine according to claim 2, characterized in that, The displacement assembly includes a displacement motor mounted on the right side wall of the drive housing. The output shaft of the displacement motor extends horizontally into the drive housing and is connected to a displacement worm gear movably mounted inside the drive housing. The displacement worm gear is perpendicular to the central shaft and located below the central shaft. A displacement sleeve is movably fitted on the central shaft inside the drive housing. The outer wall of the displacement sleeve is threaded. A displacement worm wheel, which mates with the displacement worm gear, is threaded onto the displacement sleeve. The front and rear ends of the displacement worm wheel are respectively fixed inside the drive housing by worm wheel bearings. A connecting plate is movably fitted at the front end of the displacement sleeve. The displacement sleeve is connected to the connecting plate by a chuck bearing. A gear chuck connected to a mechanical chuck is fixedly fitted on the connecting plate.

4. An automatic unwinding machine according to claim 3, characterized in that, The rotating assembly includes a rotary motor mounted on the rear side wall of the gearbox. The output shaft of the rotary motor movably passes through the gearbox and is connected to a pinion, which meshes with a gear chuck.

5. An automatic unwinding machine according to claim 1, characterized in that, Both the left and right sides of each limiting plate are bent outwards.

6. An automatic unwinding machine according to claim 1, characterized in that, Divider plates are provided at both ends of the fixed base plate between the two limiting plates.

7. An automatic unwinding machine according to claim 1, characterized in that, The surface of the lifting bracket is concave downwards, and its cross-section is V-shaped.

8. An automatic unwinding machine according to claim 1, characterized in that, A protective shell is provided on the front limiting plate and covers the lifting mechanism. A perforation is provided on the top of the protective shell corresponding to the position of the lifting screw.

9. An automatic unwinding machine according to claim 8, characterized in that, It also includes a connecting mechanism located on the right side of the fixed base plate. The connecting mechanism includes a base plate, with the fixed base plate located on the left side of the base plate. A first guide wheel is provided on the right side of the base plate, directly opposite the two limiting plates. The first guide wheel is fixed to the base plate by a clamping seat. A support arm is provided on the top of the protective shell, and a second guide wheel is provided at the outer end of the support arm, which is parallel to the first guide wheel.

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