Automatic doffing mechanical arm of spinning frame

Abstract

The utility model relates to the technical field of cotton spinning, in particular to an automatic doffing mechanical arm of a spinning frame, which comprises a mounting part and a support component, the mounting part is arranged on the support component, extension arms are symmetrically arranged at two ends of the mounting part, moving parts are arranged in inner cavities of the extension arms of the mounting part, and a connecting shaft is arranged in a shaft hole of each moving part. The two sets of connecting shafts are symmetrically and coaxially arranged at the two ends of the auxiliary part, multiple sets of grabbing parts are symmetrically arranged at the two ends of the auxiliary part at equal intervals, a fixed part is arranged on the movable part and arranged at the output end of an air cylinder, and the air cylinder is arranged on an extension arm of the installation part. The driving assembly is arranged on the extension arm, and the driving assembly is used for enabling the auxiliary part to drive the multiple sets of grabbing parts to conduct angle overturning; the doffing process is reduced, and the doffing efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of cotton spinning, in particular to an automatic doffing mechanical arm of a spinning frame. Background Art

[0002] In the traditional textile industry, the doffing operation of the spinning frame has always been one of the key links affecting production efficiency and yarn quality. In the early days, the doffing process mainly relied on manual operation. Workers needed to manually replace the full yarn take-up roller and reinstall the empty yarn tube. This process was not only labor-intensive but also inefficient, and it was easy to cause yarn contamination and damage, affecting the quality consistency of the final product. In order to solve these problems, semi-automatic or fully automated doffing robotic arms have gradually appeared on the market, aiming to replace manual doffing operations with mechanical devices.

[0003] However, the existing yarn dropping equipment is equipped with a temporary storage area, in which the empty wire taking-up roller in the transfer area is grabbed to the temporary storage area, and then the wire taking-up roller in the finished product area is transferred to the transfer area, and then the empty wire taking-up roller in the temporary storage area is transferred to the finished product area for the next winding operation. The process is complicated and affects the yarn dropping efficiency. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides an automatic doffing mechanical arm of a spinning frame which reduces the doffing process and improves the doffing efficiency.

[0005] The utility model discloses an automatic doffing mechanical arm for a spinning frame, comprising:

[0006] A mounting member and a support assembly, the mounting member is arranged on the support assembly, extension arms are symmetrically arranged at both ends of the mounting member, a moving member is arranged in the inner cavity of the extension arm of the mounting member, a connecting shaft is arranged inside the shaft hole of the moving member, two groups of connecting shafts are symmetrically and coaxially arranged at both ends of the auxiliary member, multiple groups of grabbing members are symmetrically and equidistantly arranged at both ends of the auxiliary member, a fixing member is arranged on the moving member, the fixing member is arranged at the output end of the cylinder, and the cylinder is arranged on the extension arm of the mounting member;

[0007] A driving assembly is arranged on the extension arm, and the driving assembly is used for the auxiliary part to drive the multiple groups of grabbing parts to perform angle flipping.

[0008] Furthermore, the driving assembly includes connecting pieces respectively arranged on the two groups of extension arms, a worm is arranged in a mounting hole of the connecting piece, a worm wheel is arranged on the connecting shaft, and the worm wheel is meshingly connected with the worm.

[0009] Preferably, the drive assembly further comprises stabilizing members respectively arranged on the two groups of extension arms, a drive shaft is arranged at the through hole of the stabilizing member, the drive shaft is arranged in the polygonal inner hole of the worm, and the two groups of drive shafts are driven by the power assembly.

[0010] Furthermore, the power assembly includes a first servo motor arranged on the mounting member, a first sprocket is coaxially arranged on the output end of the first servo motor, second sprockets are coaxially arranged on the two sets of drive shafts respectively, and a first chain is meshed with the first sprocket and the two sets of second sprockets.

[0011] Preferably, the support assembly includes conductive parts symmetrically arranged at both ends of the mounting part, threaded rods are arranged in the threaded holes of the conductive parts, two groups of threaded rods are respectively arranged inside the slots of the support parts, and multiple groups of connecting legs are symmetrically arranged at both ends of the support parts.

[0012] Furthermore, a second servo motor is arranged on the support member, a third sprocket is arranged at the output end of the second servo motor, a fourth sprocket is coaxially arranged on the threaded rod, and a second chain is arranged on the third sprocket and meshing with the two sets of fourth sprockets.

[0013] Preferably, a single start of the first servo motor drives the auxiliary component to flip 180° through the engagement of the worm and the worm wheel.

[0014] Furthermore, an isolation piece is provided on the support piece, and the second chain is located inside the isolation piece.

[0015] Preferably, an adjusting foot is provided on the connecting leg.

[0016] Furthermore, the grabbing member is provided with a chamfer.

[0017] Compared with the prior art, the beneficial effects of the utility model are as follows: the movable part 2 is connected with the output end of the cylinder 7 through the fixing part 6, the auxiliary part 4 drives the grabbing part 5 to adjust the working height through the cylinder 7, the auxiliary part 4 is connected with the movable part in rotation through the connecting shaft 3, the auxiliary part 4 provides flipping power through the driving assembly, the auxiliary part 4 drives the grabbing part 5 to flip so that the take-up roller is clamped and then provides flipping power, and the grabbing part 5 is flipped so that the auxiliary part 4 can complete the disassembly, assembly and replacement of the take-up roller at the same work station, thereby reducing the yarn dropping process and improving the yarn dropping efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a front view structural schematic diagram of the utility model;

[0019] Figure 2 It is a schematic diagram of the axonometric structure of the utility model;

[0020] Figure 3 It is a schematic diagram of the structure of the utility model when viewed from above;

[0021] Figure 4 It is a schematic diagram of the parts structure of the utility model;

[0022] Markings in the accompanying drawings: 1. Mounting part; 2. Moving part; 3. Connecting shaft; 4. Auxiliary part; 5. Grabbing part; 6. Fixing part; 7. Cylinder; 8. Connecting part; 9. Worm; 10. Worm wheel; 11. Stabilizing part; 12. Driving shaft; 13. First servo motor; 14. First sprocket; 15. Second sprocket; 16. First chain; 17. Conducting part; 19. Support part; 20. Connecting leg; 21. Third sprocket; 22. Fourth sprocket; 23. Second chain; 24. Threaded rod; 25. Isolation part; 26. Second servo motor; 27. Adjusting foot. DETAILED DESCRIPTION

[0023] The following is a further detailed description of the specific implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0024] like Figures 1 to 4 As shown, the automatic doffing mechanical arm of the spinning frame of the utility model comprises:

[0025] A mounting member 1 and a support assembly, wherein the mounting member 1 is arranged on the support assembly, and extension arms are symmetrically arranged at both ends of the mounting member 1, a moving member 2 is arranged in the inner cavity of the extension arm of the mounting member 1, and a connecting shaft 3 is arranged inside the shaft hole of the moving member 2, two groups of connecting shafts 3 are symmetrically and coaxially arranged at both ends of an auxiliary member 4, and multiple groups of grabbing members 5 are symmetrically and equidistantly arranged at both ends of the auxiliary member 4, and a fixing member 6 is arranged on the moving member 2, and the fixing member 6 is arranged at the output end of a cylinder 7, and the cylinder 7 is arranged on the extension arm of the mounting member 1;

[0026] The driving assembly is arranged on the extension arm, and the driving assembly is used for the auxiliary part 4 to drive multiple groups of grabbing parts 5 to flip at an angle; the moving part 2 is connected with the output end of the cylinder 7 through the fixing part 6, and the working height of the grabbing parts 5 is adjusted by the auxiliary part 4 through the cylinder 7, and the auxiliary part 4 is connected with the moving part through the connecting shaft 3. The auxiliary part 4 provides flipping power through the driving assembly, and the grabbing parts 5 are driven to flip by the auxiliary part 4 so that the take-up roller is clamped and then provided with flipping power. The grabbing parts 5 are flipped so that the auxiliary part 4 can complete the disassembly, assembly and replacement of the take-up roller at the same work station, thereby reducing the yarn dropping process and improving the yarn dropping efficiency.

[0027] like Figures 1 to 4 As shown, as a preferred solution, the driving assembly includes a connecting member 8 respectively arranged on the two groups of extension arms, a worm 9 is arranged in the mounting hole of the connecting member 8, a worm wheel 10 is arranged on the connecting shaft 3, and the worm wheel 10 is meshingly connected with the worm 9; the worm 9 is rotatably supported on the moving member 2 through the connecting member 8, and the worm 9-worm wheel 10 transmission can ensure a high degree of transmission accuracy and stability due to its self-locking characteristics when the auxiliary member 4 drives multiple groups of grabbing members 5 to flip the angle, which not only ensures the synchronization and accuracy of the grabbing action, but also makes the entire yarn dropping process smoother and more reliable.

[0028] like Figures 1 to 4 As shown, as a preferred embodiment, the drive assembly also includes a stabilizing member 11 respectively arranged on the two groups of extension arms, a drive shaft 12 is arranged at the through hole of the stabilizing member 11, the drive shaft 12 is arranged in the polygonal inner hole of the worm 9, and the two groups of drive shafts 12 are driven by the power assembly; the setting of the stabilizing member 11 not only provides a stable support platform for the drive shaft 12, but also ensures the tight connection of the transmission system through the precise docking of the drive shaft 12 with the polygonal inner hole of the worm 9, and the drive shaft 12 cooperates with the polygonal inner hole of the worm 9 so that the worm 9 follows the displacement of the moving member 2, and the transmission relationship between the drive shaft 12 and the worm 9 remains unchanged.

[0029] like Figures 1 to 4 As shown, as a preferred solution, the power assembly includes a first servo motor 13 arranged on the mounting member 1, a first sprocket 14 is coaxially arranged on the output end of the first servo motor 13, and second sprockets 15 are coaxially arranged on the two sets of driving shafts 12 respectively. A first chain 16 is meshed on the first sprocket 14 and the two sets of second sprockets 15. The first servo motor 13 is started once to drive the auxiliary member 4 to flip 180° through the meshing of the worm 9 and the worm wheel 10; the first servo motor 13 is used as the power source. Compared with the traditional motor, the servo motor can provide more precise The torque control and position control ensure the rapid response and high-precision positioning of the drive component. When the first servo motor 13 is started once, the auxiliary component 4 can be accurately controlled to flip 180°, which improves the synchronization and accuracy of the yarn dropping operation, thereby improving the operating efficiency and yarn quality of the overall system. The chain transmission between the first sprocket 14 and the second sprocket 15 realizes smooth transmission of power. The two sets of drive shafts 12 are respectively engaged with the first sprocket 14 through the second sprocket 15, which ensures the consistency of bilateral drive and balanced distribution of torque.

[0030] like Figures 1 to 4As shown, as a preferred solution, the support assembly includes a conductive member 17 symmetrically arranged at both ends of the mounting member 1, a threaded rod 24 is arranged in the threaded hole of the conductive member 17, two groups of threaded rods 24 are respectively arranged in the slot hole of the support member 19, and multiple groups of connecting legs 20 are symmetrically arranged at both ends of the support member 19, and an adjusting foot 27 is arranged on the connecting leg 20; through the symmetrically arranged conductive member 17 and the support member 19, the entire spinning machine automatic yarn dropping robot arm obtains a solid basic support frame, the cooperation of the threaded rod 24 and the threaded hole of the conductive member 17, and the design of the slot hole of the support member 19, together construct an adjustable support system, the threaded rod 24 rotates and cooperates with the support member 19 to adjust the position of the grabbing member 5, and the working height or horizontal position of the robot arm is accurately adjusted by adjusting the position of the threaded rod 24, thereby enhancing the adaptability of the equipment to different working scenes and ensuring the efficient yarn dropping operation. The setting of the connecting leg 20 and the adjusting foot 27, the adjusting foot 27 allows the horizontal state of the robot arm to be quickly adjusted at the installation site to ensure the smooth operation of the equipment.

[0031] like Figures 1 to 4 As shown, as a preferred solution, a second servo motor 26 is arranged on the support member 19, a third sprocket 21 is arranged at the output end of the second servo motor 26, a fourth sprocket 22 is coaxially arranged on the threaded rod 24, a second chain 23 is arranged on the third sprocket 21 and the two groups of fourth sprockets 22 to mesh with each other, an isolating member 25 is arranged on the support member 19, and the second chain 23 is located inside the isolating member 25; the addition of the second servo motor 26 provides an independent and precise power source for adjusting the position of the threaded rod 24, and the chain transmission system composed of the third sprocket 21 and the fourth sprocket 22 realizes efficient and smooth transmission of power from the second servo motor 26 to the threaded rod 24, and when the threaded rod 24 rotates, multiple groups of grabbing members 5 are adjusted in position in the finished product area and the transfer area, and the design of the isolating member 25 effectively wraps the second chain 23 to prevent external impurities from entering the transmission system, thereby reducing the risk of chain wear and accidental breakage and extending the service life of the transmission system.

[0032] like Figures 1 to 4 As shown, as a preferred solution, a chamfer is provided on the grabbing member 5; by providing the chamfer on the grabbing member 5, the grabbing member 5 is more convenient to insert into the take-up roller, thereby increasing the matching stability.

[0033] like Figures 1 to 4 As shown, as a preferred solution, its working process is as follows:

[0034] First, the cylinder 7 is controlled to drive multiple groups of grabbing parts 5 to move downward through the moving part 2, and then the grabbing parts 5 are inserted into the axis of the take-up roller in the transfer area for grabbing, and then the cylinder 7 drives the grabbing parts 5 to reset, and synchronously drives the take-up roller to fall off the transfer area, and then the first servo motor 13 is started to drive the auxiliary part 4 to rotate 180°, and then the grabbing parts 5 at the other end of the auxiliary part 4 are turned over to the bottom, and then the cylinder 7 drives the auxiliary part 4 to descend again, and the take-up roller in the finished product area is placed in the transfer area, and then the cylinder 7 drives the auxiliary part to reset again, and then the second servo motor 26 is started to drive the screw The groove rod 24 rotates to move the grabbing part 5 to the finished product area, and then the cylinder 7 drives the grabbing part 5 to descend again, and then the grabbing part is inserted into the axis of the take-up roller in the finished product area, and then the cylinder 7 drives the grabbing part 5 to reset so that the take-up roller in the finished product area is separated from the finished product area, and then the first servo motor 13 drives again to drive the auxiliary part 4 to flip 180°, and then the unwound take-up roller is positioned and placed in the finished product area for the next step of winding, and then the cylinder 7 drives the auxiliary part to reset again, and then the second servo motor 26 starts to drive the auxiliary part 4 to move to the transfer area for the next step of grabbing the take-up roller.

[0035] The installation method, connection method or setting method of the automatic doffing mechanical arm of the spinning frame of the utility model are all common mechanical methods, and any method that can achieve its beneficial effects can be implemented.

[0036] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. Automatic doffing robot arm for spinning frame, characterized in that: include: A mounting member and a support assembly, wherein the mounting member is arranged on the support assembly, extension arms are symmetrically arranged at both ends of the mounting member, a moving member is arranged in the inner cavity of the extension arm of the mounting member, a connecting shaft is arranged inside the shaft hole of the moving member, two groups of the connecting shafts are symmetrically and coaxially arranged at both ends of the auxiliary member, a plurality of groups of grabbing members are symmetrically and equidistantly arranged at both ends of the auxiliary member, a fixing member is arranged on the moving member, the fixing member is arranged at the output end of the cylinder, and the cylinder is arranged on the extension arm of the mounting member; A driving assembly is arranged on the extension arm, and the driving assembly is used for the auxiliary part to drive the multiple groups of grabbing parts to perform angle flipping.

2. The automatic doffing robot arm for a spinning frame according to claim 1, characterized in that: The driving assembly comprises connecting pieces respectively arranged on two groups of extension arms, a worm is arranged in a mounting hole of the connecting piece, a worm wheel is arranged on the connecting shaft, and the worm wheel is meshingly connected with the worm.

3. The automatic doffing robot arm for a spinning frame according to claim 2, characterized in that: The driving assembly also includes stabilizing members respectively arranged on the two groups of extension arms, a driving shaft is arranged at the through hole of the stabilizing member, the driving shaft is arranged in the multi-faceted inner hole of the worm, and the two groups of driving shafts are driven by the power assembly.

4. The automatic doffing robot arm for a spinning frame according to claim 3, characterized in that: The power assembly includes a first servo motor arranged on a mounting member, a first sprocket is coaxially arranged on the output end of the first servo motor, second sprockets are coaxially arranged on the two groups of driving shafts respectively, and a first chain is meshed with the first sprocket and the two groups of second sprockets.

5. The automatic doffing robot arm for a spinning frame according to claim 4, characterized in that: The first servo motor is started once to drive the auxiliary component to flip 180 degrees through the meshing of the worm and the worm wheel.

6. The automatic doffing robot arm for a spinning frame according to claim 1, characterized in that: The support assembly includes conductive members symmetrically arranged at both ends of the mounting member, threaded rods are arranged in the threaded holes of the conductive members, two groups of threaded rods are respectively arranged in the slots of the support member, and multiple groups of connecting legs are symmetrically arranged at both ends of the support member.

7. The automatic doffing robot arm for a spinning frame according to claim 6, characterized in that: The connecting leg is provided with an adjusting foot.

8. The automatic doffing robot arm for a spinning frame according to claim 6, characterized in that: The support member is provided with a second servo motor, an output end of the second servo motor is provided with a third sprocket, a fourth sprocket is coaxially provided on the threaded rod, and a second chain is provided on the third sprocket and meshing with the two sets of fourth sprockets.

9. The automatic doffing robot arm for a spinning frame according to claim 8, characterized in that: An isolation piece is arranged on the supporting piece, and the second chain is located inside the isolation piece.

10. The automatic doffing robot arm for a spinning frame according to claim 1, characterized in that: The grabbing piece is provided with a chamfer.

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