Automatic yarn storage device

Abstract

The utility model relates to the field of spinning, in particular to an automatic yarn storage device which comprises a main shell, a main transmission shaft is arranged in the middle in the main shell, a hollow transmission shaft and a yarn storage barrel transmission shaft are coaxially arranged on the side, located on the main transmission shaft, in the main shell in an up-down mode, and the bottom of the yarn storage barrel transmission shaft is in transmission connection with the main transmission shaft. A yarn storage cylinder is fixedly sleeved on the yarn storage cylinder transmission shaft; a yarn winding disc is coaxially arranged on the hollow transmission shaft through a clutch mechanism, and the clutch mechanism acts to achieve transmission connection between the yarn winding disc and the hollow transmission shaft or transmission connection between the yarn winding disc and the yarn storage barrel. A stepping motor is arranged in the main shell, and transmission connection between the stepping motor and the hollow transmission shaft is achieved through a synchronous cog belt and a synchronous belt wheel structure. A transmission mode of a one-way bearing and a positioning swing arm is not adopted any more and is changed into a transmission mode of a synchronous belt wheel and a synchronous cog belt, the reaction time for the positioning swing arm to drive a gear to be engaged and disengaged is eliminated, and transmission is faster. In addition, bidirectional rotation of the yarn winding disc can be achieved, and control is more flexible.

Description

Technical Field

[0001] The utility model relates to the technical field of textile, in particular to an automatic yarn storage device. Background Art

[0002] In textile production, the yarn storage device is a very important component in the textile process. For the increasingly mature automatic thread-changing models, during the process of automatic thread-changing by the thread-changer on the automatic thread-changing model, the yarn on the yarn storage device needs to be continuously output; and since the automatic thread-changer is installed in the previous process of the yarn storage device, when the automatic thread-changer works, it will stop supplying yarn to the yarn storage device. At this time, the yarn stored in the yarn storage device itself needs to be used to supply the textile machine in the next process. In addition, after the automatic thread-changer finishes changing the thread, it is also necessary to input a corresponding length of yarn into the yarn storage cylinder to ensure the stability of the yarn storage amount on the yarn storage cylinder.

[0003] In response to this production condition, the company proposed a technical solution with the patent number 202410160364X and the name of constant yarn storage device, which can accurately supplement the yarn on the yarn storage cylinder. In actual application, it can meet the requirements of most manufacturers. However, for manufacturers with higher requirements for textile fineness, although a yarn winding positioning mechanism is added to increase the accuracy of yarn replenishment, due to its structure of using a one-way bearing to drive the positioning swing arm to rotate to achieve separation or meshing transmission, there is an action time for the positioning swing arm to swing, which affects the accuracy of the yarn replenishment amount, and ultimately leads to a deviation in the position of the yarn joint on the knitted fabric, affecting the aesthetics. Summary of the Utility Model

[0004] In view of the above problems, an embodiment of the utility model provides an automatic yarn storage device.

[0005] An automatic yarn storage device provided by an embodiment of the utility model includes a main housing. A main transmission shaft is arranged in the middle of the main housing. A hollow transmission shaft and a yarn storage cylinder transmission shaft are coaxially arranged up and down on one side of the main transmission shaft in the main housing. The bottom of the yarn storage cylinder transmission shaft is in transmission connection with the main transmission shaft, and a yarn storage cylinder is fixedly sleeved on the yarn storage cylinder transmission shaft;

[0006] A winding disc is coaxially arranged on the hollow transmission shaft through a clutch mechanism. A clutch driving mechanism is arranged on one side of the hollow transmission shaft in the main housing. The clutch driving mechanism drives the clutch mechanism to act, so as to realize the transmission connection between the winding disc and the hollow transmission shaft or realize the transmission connection between the winding disc and the yarn storage cylinder; A stepping motor is arranged on one side of the main transmission shaft in the main housing. The stepping motor is in transmission connection with the hollow transmission shaft through a synchronous toothed belt and a synchronous pulley structure, and realizes precise control of the winding disc through the clutch mechanism.

[0007] Compared with the prior art, the beneficial effects of the present utility model are as follows: Instead of using the transmission form of a one-way bearing and a positioning swing arm, a synchronous pulley and a synchronous toothed belt are adopted for transmission, eliminating the reaction time for the positioning swing arm to drive the gear to engage and disengage, making the transmission faster. In addition, the yarn winding disc can rotate bidirectionally, enabling more flexible control.

[0008] Optionally, the clutch mechanism includes a clutch frame coaxially and slidably sleeved on a hollow transmission shaft. A stroke type linear bearing is coaxially and fixedly installed inside the clutch frame to achieve slidable sleeving with the hollow transmission shaft. A first lower clutch gear disc is arranged on the upper part of the clutch frame. A first upper clutch gear disc is fixedly sleeved on the hollow transmission shaft above the first lower clutch gear disc. Clutch magnets with opposite polarities are arranged on the outer peripheries of the first lower clutch gear disc and the first upper clutch gear disc to achieve a non-contact spring structure. The yarn winding disc is arranged on the lower part of the clutch frame. Opposite second upper and second lower clutch gear discs are arranged between the bottom of the yarn winding disc and the top of the yarn storage cylinder. When the first lower clutch gear disc meshes with the first upper clutch gear disc, the yarn winding disc is in transmission connection with the hollow transmission shaft. When the second upper clutch gear disc meshes with the second lower clutch gear disc, the yarn winding disc is in transmission connection with the yarn storage cylinder. The existing multi-clutch mechanism is upgraded to a single-clutch structure, and the intermediate transmission link is cancelled. It is improved that the yarn winding disc and the yarn storage cylinder are directly clutched through the second upper and second lower clutch gear discs, avoiding the time difference generated by the intermediate transmission link, making the synchronous speed of the yarn winding disc and the yarn storage cylinder faster and more direct. And the yarn winding disc and the yarn storage cylinder are directly meshed. In some processes where the yarn storage cylinder needs to feed yarn at different speeds, the yarn winding disc can move at a variable speed along with the yarn storage cylinder to achieve complete synchronization with the yarn storage cylinder.

[0009] Optionally, a detection mounting plate is arranged between the main transmission shaft and the hollow transmission shaft inside the main housing. A yarn winding disc position detection mechanism is arranged on the detection mounting plate. The yarn winding disc position detection mechanism includes a position detection sensor arranged on the detection mounting plate and a yarn winding disc position magnet on the yarn winding disc. The yarn winding disc position magnet is opposite to the position detection sensor.

[0010] It further includes a main transmission shaft speed detection mechanism. Specifically, the main transmission shaft speed detection mechanism includes a speed measurement sensor arranged on the detection mounting plate, a speed measurement disc fixedly sleeved on the main transmission shaft, and a speed measurement magnet arranged on the speed measurement disc. The speed measurement magnet is opposite to the speed measurement sensor.

[0011] Optionally, in the preparation stage: the clutch driving mechanism drives the clutch mechanism to act to realize the transmission connection between the yarn winding disc and the hollow transmission shaft. Then, based on the detection signal of the yarn winding disc position detection mechanism, the hollow transmission shaft is driven to rotate by the stepping motor, the synchronous toothed belt and the synchronous belt pulley, so as to realize positioning the yarn winding disc at the zero position. After that, the yarn is threaded through the hollow transmission shaft and sent out through the yarn threading porcelain eye on the yarn winding disc and then sent into the textile equipment. Finally, the yarn storage cylinder remains stationary, and the stepping motor acts again to drive the yarn winding disc to rotate and store yarn into the yarn storage cylinder. During the yarn storage process, the actual yarn storage amount into the yarn storage cylinder is determined based on the yarn winding disc position detection mechanism. When the actual yarn storage amount is the same as the set yarn storage amount, the stepping motor stops, and thus the automatic yarn storage into the yarn storage cylinder is completed. Brief Description of the Drawings

[0012] The drawings described herein are used to provide a further understanding of the present invention, form a part of this application, and do not limit the present invention. In the drawings:

[0013] Figure 1 is a schematic diagram of the overall structure of an automatic yarn storage device provided by an embodiment of the present invention;

[0014] Figure 2 is a schematic sectional view of an automatic yarn storage device provided by an embodiment of the present invention;

[0015] Figure 3 is a schematic diagram of the synchronous working condition of the yarn winding disc and the yarn storage cylinder provided by an embodiment of the present invention;

[0016] Figure 4 is a schematic diagram of the yarn storage working condition of the yarn storage cylinder provided by an embodiment of the present invention;

[0017] Figure 5 is a schematic diagram of the structure of a clutch mechanism provided by an embodiment of the present invention;

[0018] Figure 6 is an exploded view of a clutch mechanism provided by an embodiment of the present invention;

[0019] Figure 7 is a schematic diagram of the partial structure of a hollow shaft provided by an embodiment of the present invention;

[0020] Figure 8 is a partial structure entity of a yarn storage cylinder provided by an embodiment of the present invention;

[0021] Figure 9 is a schematic diagram of the structure of a clutch driving mechanism provided by an embodiment of the present invention;

[0022] Figure 10 is a schematic diagram of the transmission structure of a synchronous toothed belt and a synchronous belt pulley provided by an embodiment of the present invention;

[0023] Figure 11 The effect diagram of the position of the yarn joint of the automatic yarn storage device of the present utility model on the knitted fabric;

[0024] Figure 12 The effect diagram of the position of the yarn joint on the knitted fabric by applying the existing patented technical solution.

[0025] Wherein, 1. Main housing; 2. Main transmission shaft; 3. Hollow transmission shaft; 4. Yarn storage cylinder transmission shaft; 5. Yarn storage cylinder; 6. Clutch mechanism; 7. Winding disc; 8. Clutch driving mechanism; 9. Stepper motor; 10. Synchronous toothed belt; 11. Synchronous belt pulley; 12. Detection mounting plate; 13. Main transmission shaft speed detection mechanism; 14. Winding disc position detection mechanism; 15. Clutch frame; 16. Traveling linear bearing; 17. First lower clutch tooth disc; 18. First upper clutch tooth disc; 19. Clutch magnet; 20. Second upper clutch tooth disc; 21. Second lower clutch tooth disc; 22. Clutch driving electromagnet; 23. Thrust unit; 24. Yarn. Specific embodiments

[0026] In order to make the purpose, technical solution and advantages of the present utility model clearer and more understandable, the present utility model will be further described in detail below in conjunction with the embodiments and the drawings. Herein, the illustrative embodiments of the present utility model and their descriptions are used to explain the present utility model, but do not limit the present utility model.

[0027] See Figures 1 - 10 , an automatic yarn storage device provided by an embodiment of the present utility model includes a main housing 1. A main transmission shaft 2 is arranged in the middle of the main housing 1. A hollow transmission shaft 3 and a yarn storage cylinder transmission shaft 4 are coaxially arranged up and down on one side of the main transmission shaft 2 in the main housing 1. The bottom of the yarn storage cylinder transmission shaft 4 is in transmission connection with the main transmission shaft 2, and a yarn storage cylinder 5 is fixedly sleeved on the yarn storage cylinder transmission shaft 4;

[0028] A winding disc 7 is coaxially arranged on the hollow transmission shaft 3 through a clutch mechanism 6. A clutch driving mechanism 8 is arranged on one side of the hollow transmission shaft 3 in the main housing 1. The clutch driving mechanism 8 drives the clutch mechanism 6 to act so as to realize the transmission connection between the winding disc 7 and the hollow transmission shaft 3 or realize the transmission connection between the winding disc 7 and the yarn storage cylinder 5; A stepper motor 9 is arranged on one side of the main transmission shaft 2 in the main housing 1. The stepper motor 9 is in transmission connection with the hollow transmission shaft 3 through a synchronous toothed belt 10 and a synchronous belt pulley 11 structure.

[0029] The technical solution of the present utility model no longer adopts the transmission form of a one-way bearing and a positioning swing arm, but changes to a synchronous belt pulley 11 plus a synchronous toothed belt 10 transmission, eliminating the reaction time of the positioning swing arm driving the gear to engage and disengage, making the transmission faster; in addition, the winding disc 7 can rotate bidirectionally when the winding disc 7 is in transmission connection with the hollow transmission shaft 3, and the control is more flexible.

[0030] In implementation, the clutch mechanism 6 includes a clutch frame 15 that is coaxially and slidably sleeved on the hollow transmission shaft 3. Specifically, a stroke type linear bearing 16 can be used to achieve the sliding sleeve of the clutch frame 15 on the hollow transmission shaft 3. A first lower clutch gear disc 17 is arranged on the upper part of the clutch frame 15. A first upper clutch gear disc 18 is fixedly sleeved on the hollow transmission shaft 3 above the first lower clutch gear disc 17. Clutch magnets 19 with opposite poles facing each other are arranged on the outer peripheries of the first lower clutch gear disc 17 and the first upper clutch gear disc 18 to achieve a non-contact spring structure. The yarn winding disc 7 is arranged at the lower part of the clutch frame 15. Opposite second upper clutch gear disc 20 and second lower clutch gear disc 21 are arranged between the bottom of the yarn winding disc 7 and the top of the yarn storage cylinder 5. When the first lower clutch gear disc 17 meshes with the first upper clutch gear disc 18, the yarn winding disc 7 is in transmission connection with the hollow transmission shaft 3. When the second upper clutch gear disc 20 meshes with the second lower clutch gear disc 21, the yarn winding disc 7 is in transmission connection with the yarn storage cylinder 5. The existing multi-clutch mechanism is upgraded to a single-clutch structure, and the intermediate transmission link is cancelled. It is improved that the yarn winding disc 7 and the yarn storage cylinder 5 are directly clutched and transmitted through the second upper clutch gear disc 20 and the second lower clutch gear disc 21, avoiding the time difference generated by the intermediate transmission link, making the synchronous speed of the yarn winding disc 7 and the yarn storage cylinder 5 faster and more direct. That is, in the existing patent solution, the forward and reverse rotations of the yarn winding disc both rely on the main shaft to transmit power through a double-clutch structure. After the improvement of the clutch mechanism 6 of the present utility model, when changing the thread, the yarn winding disc 7 directly meshes with the yarn storage cylinder 5. Although it also relies on the power of the main transmission shaft 2 at this time, the intermediate transmission link in the double-clutch structure is cancelled, making the meshing between the yarn winding disc 7 and the yarn storage cylinder more rapid and accelerating the synchronous efficiency of the two. When replenishing yarn to the yarn storage cylinder, the stepping motor 9 directly drives the yarn winding disc 7 to reverse through the synchronous toothed belt 10. Similarly, there is no intermediate transmission link, making the yarn storage speed faster and the control precision of the yarn storage amount higher. And the yarn winding disc 7 and the yarn storage cylinder 5 are directly meshed. In some processes where the yarn storage cylinder 5 needs to feed yarn at different speeds, the yarn winding disc 7 can move at a variable speed along with the yarn storage cylinder 5 to achieve complete synchronization with the yarn storage cylinder 5.

[0031] In implementation, the clutch driving mechanism 8 includes a clutch driving electromagnet 22 arranged on one side of the first lower clutch gear disc 17, and a top-pushing unit 23 for transmitting power between the clutch driving electromagnet 22 and the first lower clutch gear disc 17. Specifically, the top-pushing unit 23 includes a vertical plate fixed in the main housing 1 and a force-transmitting rod hinged to the vertical plate in the middle. One end of the force-transmitting rod abuts against the output end of the clutch driving electromagnet 22, and the other end is equipped with a high-speed ball bearing, and the high-speed ball bearing abuts against the bottom surface of the first lower clutch gear disc 17. In specific implementation, two groups of clutch driving mechanisms 8 can be arranged symmetrically on both sides of the clutch mechanism 6 to avoid uneven force on one side and affect the service life.

[0032] During implementation, a detection mounting plate 12 is arranged between the main transmission shaft 2 and the hollow transmission shaft 3 inside the main housing 1. A yarn winding disc position detection mechanism 14 is arranged on the detection mounting plate 12. The yarn winding disc position detection mechanism 14 includes a position detection sensor arranged on the detection mounting plate 12 and a yarn winding disc position magnet on the yarn winding disc 7. The yarn winding disc position magnet faces the position detection sensor.

[0033] The automatic yarn storage device of the present utility model may further include a transmission shaft speed detection mechanism 13. Specifically, the main transmission shaft speed detection mechanism 13 includes a speed measurement sensor arranged on the detection mounting plate 12, a speed measurement disc fixedly sleeved on the main transmission shaft 2, and a speed measurement magnet arranged on the speed measurement disc. The speed measurement magnet faces the speed measurement sensor. A speed measurement disc is installed on the main transmission shaft 2. Since the main transmission shaft 2 and the yarn storage cylinder 5 are in a 1:1 transmission, the speed measurement disc is equivalent to detecting the speed of the yarn storage cylinder 5. Of course, the speed measurement disc can also be installed at other positions in a 1:1 transmission with the yarn storage cylinder 5. A plurality of speed measurement magnets are arranged circumferentially on the speed measurement disc, so as to judge the current yarn feeding speed of the yarn storage cylinder 5 in some processes where the yarn storage cylinder 5 needs to feed yarn at different speeds.

[0034] During the use of the automatic yarn storage device of the present utility model:

[0035] Preparation stage: The clutch drive electromagnet 22 acts to push up the first lower clutch gear disc 17 through the pushing unit 23, so that the first lower clutch gear disc 17 meshes with the first upper clutch gear disc 18, realizing the transmission connection between the yarn winding disc 7 and the hollow transmission shaft 3. Then, based on the detection signal of the yarn winding disc position detection mechanism 14, the hollow transmission shaft 3 is driven to rotate through the stepping motor 9, the synchronous toothed belt 10 and the synchronous belt pulley 11, and then the yarn winding disc 7 is positioned at the zero position. After that, the yarn 24 is inserted into the hollow transmission shaft 3 and passes out through the yarn threading porcelain eye on the yarn winding disc 7 and is sent into the textile equipment. Finally, the yarn storage cylinder 5 remains stationary, and the stepping motor 9 acts again to drive the yarn winding disc 7 to rotate to store yarn in the yarn storage cylinder 5. During the yarn storage process, the actual yarn storage amount in the yarn storage cylinder 5 is determined based on the yarn winding disc position detection mechanism 14. When the actual yarn storage amount is the same as the set yarn storage amount, the stepping motor 9 stops, and thus the automatic yarn storage in the yarn storage cylinder 5 is completed.

[0036] When the textile equipment in the next process does not need to change the yarn, the clutch mechanism 6 maintains the current state, and the yarn winding disc 7 is positioned at the zero position. The main transmission shaft 2 drives the yarn storage cylinder 5 to rotate to supply yarn to the textile equipment.

[0037] When the textile equipment needs to change the thread, the thread changer in the previous process operates. It is necessary to stop supplying yarn to the yarn storage cylinder 5 and use the yarn 24 stored on the yarn storage cylinder 5 to supply yarn to the textile equipment. At this time, the clutch drive electromagnet 22 resets. Under the action of the like-sex repulsion of the clutch magnet 19, the first lower clutch gear disk 17 pushes the winding disk 7 downward, so that the second upper clutch gear disk 20 meshes with the second lower clutch gear disk 21, and the winding disk 7 rotates synchronously with the yarn storage cylinder 5, and supplies the yarn stored on the yarn storage cylinder 5 to the textile equipment;

[0038] After the thread changer finishes working, the winding disk 7 needs to stop rotating synchronously with the yarn storage cylinder 5. The clutch drive electromagnet 22 acts again to push up the first lower clutch gear disk 17 through the pushing unit 23, so that the first lower clutch gear disk 17 meshes with the first upper clutch gear disk 18. After the winding disk 7 is disengaged from the yarn storage cylinder 5 and synchronously drives with the hollow transmission shaft 3, the winding disk 7 can continue to run a short distance in the synchronous direction and gradually stop, which can effectively buffer, decelerate and brake the winding disk 7. After the winding disk 7 stops rotating synchronously, it immediately rotates in the reverse direction to compensate the yarn sent out from the yarn storage cylinder 5 during the synchronous following process back to the yarn storage cylinder 5. After reaching the preset yarn storage amount, the stepping motor 9 stops working and positions the winding disk 7 at the zero point.

[0039] Finally, refer to Figure 11 for the effect diagram of the position of the yarn joint of the automatic yarn storage device of the present utility model on the knitted fabric, and compare Figure 12 with the effect diagram of the position of the yarn joint on the knitted fabric by applying the existing patented technical solution. It can be clearly seen from the two actual effect diagrams that the neatness of the position of the yarn joint of the automatic yarn storage device of the present utility model on the knitted fabric is significantly higher than that of the existing patented technology, and the improvement effect on the overall aesthetics of the knitted fabric is remarkable.

[0040] The above are only the preferred embodiments of the present utility model and are not intended to limit the protection scope of the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model are all included in the protection scope of the present utility model.

Claims

1. An automatic yarn storage device, comprising a main housing, a main transmission shaft is arranged in the middle of the main housing, a hollow transmission shaft and a yarn storage drum transmission shaft are coaxially arranged on one side of the main transmission shaft in the main housing, the bottom of the yarn storage drum transmission shaft is connected to the main transmission shaft, and a yarn storage drum is fixedly sleeved on the yarn storage drum transmission shaft; characterized in that: A yarn winding disk is coaxially arranged on the hollow transmission shaft through a clutch mechanism, and a clutch driving mechanism is arranged on one side of the hollow transmission shaft in the main shell body, and the clutch driving mechanism drives the clutch mechanism to operate, thereby realizing the transmission connection between the yarn winding disk and the hollow transmission shaft or the transmission connection between the yarn winding disk and the yarn storage drum; a stepper motor is arranged on one side of the main transmission shaft in the main shell body, and the stepper motor and the hollow transmission shaft are connected by a synchronous toothed belt and a synchronous pulley structure, and precise control of the yarn winding disk is achieved through the clutch mechanism.

2. The automatic yarn storage device according to claim 1, characterized in that: The clutch mechanism includes a clutch frame coaxially slidably sleeved on the hollow transmission shaft, a travel linear bearing is coaxially fixedly installed inside the clutch frame to realize sliding sleeve connection with the hollow transmission shaft, a first lower clutch gear disc is arranged on the upper part of the clutch frame, a first upper clutch gear disc is fixedly sleeved on the upper side of the first lower clutch gear disc on the hollow transmission shaft, clutch magnets with the same poles opposite to each other are arranged on the outer peripheries of the first lower clutch gear disc and the first upper clutch gear disc to realize a non-contact spring structure, a yarn winding disc is arranged at the lower part of the clutch frame, and a second upper clutch gear disc and a second lower clutch gear disc are arranged between the bottom of the yarn winding disc and the top of the yarn storage drum; when the first lower clutch gear disc is meshed with the first upper clutch gear disc, the yarn winding disc is transmission connected with the hollow transmission shaft, and when the second upper clutch gear disc and the second lower clutch gear disc are meshed, the yarn winding disc is transmission connected with the yarn storage drum.

3. The automatic yarn storage device according to claim 2, characterized in that: A detection mounting plate is arranged between the main transmission shaft and the hollow transmission shaft in the main housing, and a yarn winding disc position detection mechanism is arranged on the detection mounting plate. The yarn winding disc position detection mechanism comprises a position detection sensor arranged on the detection mounting plate and a yarn winding disc position magnet on the yarn winding disc, and the yarn winding disc position magnet is opposite to the position detection sensor; It also includes a main transmission shaft speed detection mechanism, which specifically includes a speed sensor arranged on a detection mounting plate, a speed disc fixedly mounted on the main transmission shaft, and a speed magnet arranged on the speed disc, wherein the speed magnet is opposite to the speed sensor.

4. The automatic yarn storage device according to claim 3, characterized in that: Preparation stage: the clutch drive mechanism drives the clutch mechanism to realize the transmission connection between the yarn winding disk and the hollow transmission shaft. Then, based on the detection signal of the yarn winding disk position detection mechanism, the hollow transmission shaft is driven to rotate through the stepper motor, synchronous toothed belt and synchronous pulley, so as to realize the positioning of the yarn winding disk at the zero position; thereafter, the yarn is passed through the hollow transmission shaft, passed through the yarn passing porcelain eye on the yarn winding disk and sent into the textile equipment; finally, the yarn storage drum remains stationary, and the stepper motor is driven again to drive the yarn winding disk to rotate and store yarn in the yarn storage drum. During the yarn storage process, the actual yarn storage amount to the yarn storage drum is determined based on the yarn winding disk position detection mechanism. When the actual yarn storage amount is the same as the set yarn storage amount, the stepper motor stops, and the automatic yarn storage to the yarn storage drum is completed.

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