A doffer shaft assembly and AMR doffer

Abstract

The application discloses a doffing shaft assembly and an AMR doffer, and belongs to the technical field of textile equipment, and solves the technical problem of limited bobbin size of the current doffer. The doffing shaft assembly base; the doffing shaft is slidably arranged on the base, and the outer wall of the doffing shaft is provided with a first transmission member; the driving member is arranged on the base, and the driving member is connected with the first transmission member to drive the doffing shaft to reciprocate. The AMR doffer and the doffing shaft assembly can adapt to more sizes of bobbins, adapt to different specifications of bobbins produced by different types of winding machines in the factory area, have high adaptability, and can save use cost.

Description

Technical Field

[0001] This application belongs to the field of textile equipment technology, specifically relating to a doffing shaft assembly and an AMR doffing machine. Background Technology

[0002] In the textile industry, after the yarn cake is made, a doffing machine is needed to transfer the yarn cake to other workshops. The existing doffing machine's doffing shaft is driven by a belt, and the belt equipment is set inside the doffing shaft. This makes the doffing shaft have a large diameter and can only be used for larger yarn cakes, and cannot be used for some smaller yarn cakes. Summary of the Invention

[0003] To address the technical problem of the limited yarn cake size that current yarn doffing machines can accommodate, this application provides a doffing roller assembly and an AMR yarn doffing machine.

[0004] In a first aspect of this application, a drop shaft assembly is provided, comprising:

[0005] Base;

[0006] A drop cylinder shaft is slidably disposed on the base, and a first transmission component is provided on the outer wall of the drop cylinder shaft;

[0007] A driving component is disposed on the base, and the driving component is connected to the first transmission component to drive the drop cylinder shaft to reciprocate.

[0008] In some embodiments, the first transmission component is a rack, which is arranged axially along the drop cylinder shaft; the driving component includes a motor and a gear, the motor being connected to the gear in a transmission connection, and the gear meshing with the rack.

[0009] In some embodiments, the drive element further includes a second transmission element, through which the motor is connected to the gear.

[0010] In some embodiments, the second transmission component includes a first pulley, a second pulley, and a belt, wherein the output shaft of the motor is drivenly connected to the first pulley, and the second pulley is drivenly connected to the gear.

[0011] In some embodiments, the first transmission member is disposed on the bottom wall of the drop cylinder shaft.

[0012] In some embodiments, the outer wall of the drop cylinder shaft is provided with a groove, the groove being arranged along the axial direction of the drop cylinder shaft, and the first transmission member is disposed within the groove.

[0013] In some embodiments, the base is provided with a push sleeve, and the drop cylinder shaft is slidably engaged with the push sleeve.

[0014] In some embodiments, the outer wall of the drop cylinder shaft is provided with at least one limiting groove, and each limiting groove is provided along the axial direction of the drop cylinder shaft; the base is provided with at least one limiting block, and the limiting block slides into the limiting groove one by one.

[0015] In some embodiments, the drop cylinder shaft assembly further includes a crash bar and a sensor connected to the crash bar. The crash bar is coaxially arranged with the drop cylinder shaft, and both ends of the crash bar extend beyond both ends of the drop cylinder shaft. The sensor is electrically connected to the drive component.

[0016] In a second aspect of this application, an AMR doffing machine is provided, including the doffing shaft assembly.

[0017] The doffing shaft assembly and AMR doffing carriage provided according to one or more embodiments of this application, by setting the first transmission member on the outer wall of the doffing shaft, allow the doffing shaft to have a smaller diameter, thereby enabling the doffing shaft to extend into the hole of a smaller size yarn cake, and the smaller diameter doffing shaft can still extend into the hole of a larger size yarn cake. This allows the AMR doffing carriage and doffing shaft assembly of this application to be compatible with more sizes of yarn cakes, and to be compatible with different specifications of yarn cakes produced by different types of winding machines in the factory area. It has high compatibility and can save on usage costs. Attached Figure Description

[0018] Figure 1 A schematic diagram of the structure of the drop cylinder shaft assembly in one or more embodiments of this application is shown.

[0019] Figure 2 It shows Figure 1 A structural diagram from another perspective.

[0020] Figure 3 It shows Figure 1 A schematic diagram of the middle part of the structure.

[0021] Explanation of reference numerals in the attached drawings: 100-base, 110-push sleeve, 120-limiting block, 200-drop shaft, 210-rack, 220-groove, 230-limiting groove, 300-driving component, 310-motor, 320-gear, 330-second transmission component, 331-first pulley, 332-second pulley, 333-belt, 400-anti-collision bar. Detailed Implementation

[0022] To enable those skilled in the art to more clearly understand this application, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0023] Please see Figure 1-3 According to a first aspect of this application, a doffing shaft assembly is provided for use in a doffing machine to transfer a yarn cake, wherein the yarn cake is a tubular product made by a yarn-making device.

[0024] The drop cylinder shaft assembly includes a base 100, a drop cylinder shaft 200, and a drive member 300. The drop cylinder shaft 200 is slidably disposed on the base 100, and a first transmission member is disposed on the outer wall of the drop cylinder shaft 200. The drive member 300 is disposed on the base 100 and is connected to the first transmission member to drive the drop cylinder shaft 200 to reciprocate.

[0025] The base 100 is a structural component with sufficient strength for mounting the doffing shaft 200 and the drive component 300. The doffing shaft 200 is a rod-shaped structural component for transferring yarn cakes. In use, the axis of the doffing shaft 200 is mostly horizontal or nearly horizontal to accommodate multiple yarn cakes. The drive component 300 is a structural component used to drive the doffing shaft 200 to move relative to the base 100. Specifically, the drive component 300 drives the doffing shaft 200 away from the base 100, so that the doffing shaft 200 can remove multiple yarn cakes from the winding machine or cause multiple yarn cakes to fall off the doffing shaft 200.

[0026] In this embodiment, the first transmission component is disposed on the outer wall of the drop shaft 200. The driving component 300 drives the drop shaft 200 to move relative to the base 100 through the first transmission component. That is, the drop shaft 200 does not need to have space to accommodate the belt 333 or other transmission devices. The diameter of the drop shaft 200 can be reduced accordingly, so that the drop shaft 200 can be inserted into the hole of a smaller size yarn cake. The smaller diameter drop shaft 200 can still be inserted into the hole of a larger size yarn cake. This makes the drop shaft 200 in this embodiment able to adapt to more sizes of yarn cakes and to different specifications of yarn cakes produced by different types of winding machines in the factory. It has high adaptability and can save on usage costs.

[0027] Please see Figures 1-3 In some embodiments, the first transmission component is a rack 210, which is arranged along the axial direction of the drop cylinder shaft 200; the driving component 300 includes a motor 310 and a gear 320, which are connected in a transmission manner, and the gear 320 meshes with the rack 210.

[0028] The motor 310 drives the gear 320 to rotate clockwise and counterclockwise. The rack 210, which meshes with the gear 320, moves and causes relative displacement between the drop shaft 200 and the base 100. The thinner thickness of the rack 210 makes the sum of the thicknesses of the drop shaft 200 and the first transmission component thinner. The drop shaft assembly can transport smaller-sized yarn cakes, further expanding the range of yarn cake sizes that the drop shaft assembly can transport and improving adaptability.

[0029] In some embodiments, the output shaft of the motor 310 can be directly coaxially arranged with the gear 320. In this case, the motor 310 is located on one side of the doffing shaft 200, meaning that the doffing shaft assembly requires a relatively large space. Therefore, in some embodiments, the drive unit 300 also includes a second transmission member 330, through which the motor 310 is connected to the gear 320. That is, with the second transmission member 330 provided, the position of the motor 310 on the base 100 can be changed so that the projections of the motor 310, gear 320, and doffing shaft 200 overlap in a certain direction. For example, the gear 320 is located below the doffing shaft 200, the motor 310 is located above the doffing shaft 200, and the second transmission member 330 is located on one side of the doffing shaft 200. This reduces the width of the doffing shaft assembly, making it suitable for the needs of some doffing machines.

[0030] Please see Figure 2 In some embodiments, the second transmission component 330 includes a first pulley 331, a second pulley 332, and a belt 333. The output shaft of the motor 310 is connected to the first pulley 331, and the second pulley 332 is connected to the gear 320. The combination of the first pulley 331, the second pulley 332, and the belt 333 results in a simple structure, high transmission efficiency, and low cost.

[0031] In some embodiments, the driving member 300 can be a hydraulic cylinder, and the first transmission member is the telescopic rod of the hydraulic cylinder. The length direction of the telescopic rod is parallel to the drop cylinder shaft 200, and the drop cylinder shaft 200 is driven to move relative to the base 100 by the hydraulic cylinder.

[0032] In some embodiments, the first transmission member is disposed on the bottom wall of the dropper shaft 200. Specifically, if the diameter of the hole in the yarn cake is larger than the maximum width of the dropper shaft 200 and the first transmission member, when the yarn cake is sleeved on the dropper shaft 200, under the action of gravity, the top wall of the hole in the yarn cake contacts the top wall of the dropper shaft 200, and there is a gap between the bottom wall of the hole in the yarn cake and the bottom wall of the dropper shaft 200. By disposing the first transmission member on the bottom wall of the dropper shaft 200, the mutual influence between the first transmission member and the yarn cake can be reduced, ensuring the stability of the movement of the dropper shaft 200 and reducing the possibility of damaging the yarn cake.

[0033] Please see Figure 2 The outer wall of the dropper shaft 200 is provided with a groove 220, which is arranged along the axial direction of the dropper shaft 200. The first transmission component is disposed within the groove 220. It can be understood that the groove 220 can reduce the thickness of the first transmission component protruding from the outer wall of the dropper shaft 200, further reduce the maximum width of the dropper shaft 200 and the first transmission component, expand the range of transportable yarn cake sizes of the dropper shaft assembly, and improve the adaptability of the dropper shaft assembly.

[0034] In some embodiments, the base 100 is provided with a push sleeve 110, and the drop cylinder shaft 200 is slidably engaged with the push sleeve 110. The push sleeve 110 increases the contact area between the drop cylinder shaft 200 and the base 100, improving the stability of the drop cylinder shaft 200 when moving relative to the base 100. Since the push sleeve 110 extends beyond the drive member 300 in the axial direction of the drop cylinder shaft 200, after the yarn cake is fitted onto the drop cylinder shaft 200, it will not continue to move after abutting against the end face of the push sleeve 110, i.e., it will not contact the drive member 300, reducing the probability of damage to the drive member 300 and increasing the service life of the drop cylinder shaft assembly.

[0035] In some embodiments, the outer wall of the drop cylinder shaft 200 is provided with at least one limiting groove 230, each limiting groove 230 being arranged along the axial direction of the drop cylinder shaft 200; the base 100 is provided with at least one limiting block 120, the limiting block 120 slidingly engaging with the limiting groove 230. It can be understood that the sliding engagement between the limiting block 120 and the limiting groove 230 further improves the stability of the drop cylinder shaft 200 relative to the base 100 when moving. The drop cylinder shaft 200 may be provided with two limiting grooves 230, which are arranged opposite each other on both sides of the drop cylinder shaft 200 in the horizontal direction. In this case, the push cylinder sleeve 110 can provide at least two fulcrums for the drop cylinder shaft 200, and the two fulcrums are located on both sides of the drop cylinder shaft 200, effectively improving the stability of the drop cylinder shaft 200's movement.

[0036] Please see Figure 3 In some embodiments, the limiting groove 230 can directly penetrate the drop cylinder shaft 200. The width of the limiting block 120 is greater than the width of the limiting groove 230. The limiting block 120 is directly extended into the limiting groove 230, and both ends of the limiting block 120 extend beyond the limiting groove 230 and connect with the base 100. This allows the limiting block 120 and the limiting groove 230 to cooperate with each other, making installation convenient and reducing the processing difficulty of the drop cylinder shaft assembly.

[0037] To further improve the stability of the dropper shaft 200, in some embodiments, the pusher sleeve 110 is cylindrical and has a relatively long length to increase the contact area between the pusher sleeve 110 and the dropper shaft 200. The inner diameter of the pusher sleeve 110 is equal to the outer diameter of the dropper shaft 200. In this case, the dropper shaft 200 has stronger stability than the pusher sleeve 110, which can improve the accuracy of the fit between the dropper shaft 200 and the yarn cake. When the first transmission component is a rack 210, the pusher sleeve 110 is also provided with a notch to allow the rack 210 to pass through.

[0038] In some embodiments, the drop cylinder shaft assembly further includes a crash bar 400 and a sensor connected to the crash bar 400. The crash bar 400 is coaxially arranged with the drop cylinder shaft 200, and both ends of the crash bar 400 extend beyond both ends of the drop cylinder shaft 200. The sensor is electrically connected to the drive unit 300. Both ends of the anti-collision bar 400 extend beyond the drop shaft 200. The sensor is a device capable of detecting whether the end of the anti-collision bar 400 touches an obstruction. Therefore, it can be understood that during the process of removing multiple yarn cakes from the winding machine by moving one end of the drop shaft 200 away from the base 100, if the drop shaft 200 is misaligned and the front of the drop shaft 200 is obstructed in its axial movement, the end of the anti-collision bar 400 will contact the obstruction first. When the other end of the drop shaft 200 moves away from the base 100, multiple yarn cakes fall off the drop shaft 200. If the drop shaft 200 is misaligned and the front of the drop shaft 200 is obstructed in its movement, the end of the other end of the anti-collision bar 400 located at the other end of the drop shaft 200 will contact the obstruction first. Regardless of which end of the anti-collision bar 400 contacts the obstruction, the sensor can obtain a signal that there is an obstruction in front of the drop shaft 200 in its movement. The sensor is electrically connected to the drive unit 300. Specifically, the doffing car has a controller that can control the doffing car to perform functions such as movement, picking up and placing the doffing cake. The drive unit 300 is electrically connected to the controller. The sensor is electrically connected to the drive unit 300 through the controller. After the sensor transmits a signal to the controller that there is an obstruction in front of the doffing shaft 200, the controller can drive the drive unit 300 to stop working to avoid the doffing shaft 200 from colliding with the obstruction and improve the safety of the doffing shaft 200 operation.

[0039] In some embodiments, the sensor of the drop cylinder shaft assembly may include two pressure sensors, which are respectively disposed on the end faces of the two ends of the anti-collision bar 400, and can obtain a signal after the pressure sensor comes into contact with the obstruction.

[0040] Of course, in some embodiments, the sensor of the drop cylinder assembly can be a magnetostrictive displacement sensor. The drop cylinder 200 is provided with a chamber to accommodate the magnetostrictive displacement sensor. The anti-collision bar 400 is a waveguide, and the anti-collision bar 400 can move within a certain distance relative to the drop cylinder 200. By cooperating with the magnetostrictive displacement sensor and the waveguide, a signal can be sensitively obtained as to whether the anti-collision bar 400 is in contact with the obstruction.

[0041] A second aspect of this application provides an AMR doffing cart, which includes the aforementioned doffing shaft assembly. The AMR doffing cart can move within the workshop, using the doffing shaft assembly to remove multiple yarn cakes from the winding machine or to detach multiple yarn cakes from the doffing shaft 200, thus transferring the yarn cakes. Because the doffing shaft 200 of the doffing shaft assembly has a small diameter, it can fit into the holes of smaller yarn cakes, and it can still fit into the holes of larger yarn cakes. This allows the AMR doffing cart in this embodiment to adapt to different specifications of yarn cakes produced by different types of winding machines within the factory, resulting in high adaptability and savings in usage and maintenance costs.

[0042] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0043] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", and "counterclockwise" 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 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. Therefore, they should not be construed as limitations on this application.

[0044] In this application, unless otherwise expressly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0045] Furthermore, the use of terms such as "first" and "second" in this application is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined with "first" or "second" may explicitly or implicitly include one or more features. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0046] Although embodiments of this application have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the claims and their equivalents.

Claims

1. A drop cylinder shaft assembly, characterized in that, include: Base; A drop cylinder shaft is slidably disposed on the base, and a first transmission component is provided on the outer wall of the drop cylinder shaft; A driving component is disposed on the base, and the driving component is connected to the first transmission component to drive the drop cylinder shaft to reciprocate.

2. The drop cylinder shaft assembly according to claim 1, characterized in that, The first transmission component is a rack, which is arranged axially along the drop cylinder shaft; the driving component includes a motor and a gear, the motor is connected to the gear in a transmission connection, and the gear meshes with the rack.

3. The drop cylinder shaft assembly according to claim 2, characterized in that, The drive unit also includes a second transmission component, through which the motor is connected to the gear.

4. The drop cylinder shaft assembly according to claim 3, characterized in that, The second transmission component includes a first pulley, a second pulley, and a belt. The output shaft of the motor is connected to the first pulley, and the second pulley is connected to the gear.

5. The drop cylinder shaft assembly according to any one of claims 1-4, characterized in that, The first transmission component is disposed on the bottom wall of the drop cylinder shaft.

6. The drop cylinder shaft assembly according to any one of claims 1-4, characterized in that, The outer wall of the drop cylinder shaft is provided with a groove, which is arranged along the axial direction of the drop cylinder shaft, and the first transmission component is disposed in the groove.

7. The drop cylinder shaft assembly according to any one of claims 1-4, characterized in that, The base is provided with a push sleeve, and the drop cylinder shaft is slidably engaged with the push sleeve.

8. The drop cylinder shaft assembly according to any one of claims 1-4, characterized in that, The outer wall of the drop cylinder shaft is provided with at least one limiting groove, and each limiting groove is arranged along the axial direction of the drop cylinder shaft; the base is provided with at least one limiting block, and the limiting block slides into the limiting groove one by one.

9. The drop cylinder shaft assembly according to any one of claims 1-4, characterized in that, The drop cylinder shaft assembly also includes a crash bar and a sensor connected to the crash bar. The crash bar is coaxially arranged with the drop cylinder shaft, and both ends of the crash bar extend beyond both ends of the drop cylinder shaft. The sensor is electrically connected to the drive component.

10. An AMR doffing machine, characterized in that, Includes the drop cylinder shaft assembly as described in any one of claims 1-9.

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