CN111441112A - A spinning device and its automatic doffing and yarn loading method - Google Patents

Abstract

The invention discloses a spinning device and an automatic doffing and yarn loading method thereof, belonging to the technical field of textile machinery. The spinning device includes several spinning units, and the spinning unit includes a cotton guide tube, a drafting mechanism, a spinning device, a yarn storage mechanism and a winding mechanism arranged in sequence, and the winding mechanism is electrically connected to the control mechanism of the spinning unit. The winding mechanism includes a cradle arm and a drum; one end of the cradle arm is rotatably connected to the frame of the spinning machine, and the other end is installed with a chuck; the drum is rotatably connected to the frame of the spinning machine , the outer circumference of which is close to the outer circumference of the bobbin clamped by the chuck; the spinning unit also includes a yarn cutting mechanism, and the yarn cutting mechanism includes a clamping arm; one end of the clamping arm is connected to the frame of the spinning machine. Active connection, the other end of which is installed with a gripper; through the cooperation of the winding mechanism and the yarn cutting mechanism, the yarn can be automatically cut off in the spinning unit without stopping the spinning, and the automatic doffing and winding can be completed. yarn movement.

Description

A spinning device and its automatic doffing and yarn loading method

technical field

The invention belongs to the technical field of textile machinery, and more particularly relates to a spinning device and an automatic doffing and yarn loading method thereof.

Background technique

The open-end spinning machine sprays compressed air from the open-end spinning nozzle to generate a swirling airflow in the spinning chamber, and uses the swirling airflow to apply twist to the fiber bundle to generate yarn. When the yarn reaches the set fullness on the bobbin. Manual doffing or automatic doffing is required after the degree value. Due to the low efficiency of manual doffing, the piecing rate and piecing quality are heavily dependent on the technology of the operator, which has greater instability. Therefore, the current spinning machine is equipped with a spinning unit that travels to the doffing unit for automatic doffing. Yarn doffing trolley.

Since there are multiple spinning units in the spinning machine, when a spinning unit reaches a certain weight or needs to be changed when it reaches a certain length during the spinning process, the doffing trolley will move to the spinning unit for doffing and Change cans. The structure of the currently used automatic doffing trolley is relatively complex, and is provided with a supply part with a bobbin, a suction pipe and a doffing system, and the automation degree of the doffing trolley is relatively low, resulting in a relatively long doffing time. During the doffing process, for a long production line, it is necessary to manually cooperate with the doffing trolley to realize the doffing operation, which affects the production efficiency.

After searching, related patents have been published to solve the above-mentioned problem that the automation degree of the work trolley is relatively low, resulting in a relatively long doffing time. For example, the Chinese patent application, the application number is: CN201810470776.8, the publication date is: the invention patent on September 28, 2018, which discloses an automatic doffing trolley for a rotor spinning machine, including a running track and mounted on the running vehicle The car body on the track, the car body reciprocates along the driving track, and the car body is provided with a lifting device, an opening device, a pressing device, a pipe changing device, a negative pressure air port opening device, a yarn cutting device, a yarn clamping device, and a dial. Yarn device, yarn feeding device and control unit. The disadvantage of this scheme is that: the doffing trolley has many structures and requires relatively many steps to operate, so the installation and debugging operations and the action process are relatively complicated, and it is not only difficult to complete the entire doffing, yarn suction, pulling in a short period of time. It also needs the spinning unit to stop spinning to complete the entire automatic doffing process. Moreover, the whole spinning machine has only one or two doffing trolleys, and the work efficiency is relatively low.

SUMMARY OF THE INVENTION

1. The technical problem to be solved by the invention

Aiming at the problem that the doffing trolley is cumbersome to operate, the spinning unit needs to be shut down to complete the entire automatic doffing process, and the work efficiency is low, the present invention designs a spinning device and its automatic doffing and yarn loading method, so that each spinning The yarn unit can operate independently. When the bobbin reaches a certain weight or a certain length, the spinning unit can automatically cut off the yarn and complete the automatic doffing and yarn loading without stopping the spinning, which can effectively solve the problem. There are only one or two doffing trolleys in the whole spinning machine, which requires the spinning unit to stop spinning, and the doffing trolley cuts and loads the yarn, and the work efficiency is relatively low.

2. Technical solutions

In order to achieve the above object, the technical scheme provided by the invention is:

A spinning device includes several spinning units, along the running direction of the yarn, the spinning unit includes a cotton guide tube, a drafting mechanism, a spinning device, a yarn storage mechanism and a winding mechanism arranged in sequence, the The winding mechanism is electrically connected with the control mechanism of the spinning unit; the winding mechanism includes a cradle arm and a drum; one end of the cradle arm is rotatably connected with the frame of the spinning machine, and the other end is provided with a chuck; The drum is rotatably connected with the frame of the spinning machine, and its outer periphery is close to the outer periphery of the bobbin held by the chuck; the spinning unit further includes a yarn cutting mechanism, and the yarn cutting mechanism includes a clamping arm; One end of the holding arm is movably connected with the frame of the spinning machine, and the other end of the holding arm is provided with a gripper.

During the spinning process, when the bobbin reaches the set weight or reaches the set length, the control mechanism controls the winding mechanism to stop winding, and at the same time controls the spinning speed of the spinning unit to slow down or control the spinning delay. The spun yarn is stored on the yarn storage mechanism. Through the flexible use of the winding mechanism and the yarn cutting mechanism, the automatic doffing and automatic yarn loading functions of each spinning unit are completed, and the spinning units do not interfere with each other. production, greatly improving the work efficiency.

In a further technical solution, the winding mechanism further includes a traversing member, and the traversing member includes a yarn feeder, and the yarn feeder is used to traverse and wind the yarn to the gripper clamped by the chuck. on the bobbin. The traversing member can guide the yarn to a certain extent, which is convenient for the yarn to be wound on the bobbin.

A further technical solution also includes a bobbin warehouse, which is movably installed on the frame of the spinning machine and located above the drum; the bobbin warehouse contains a plurality of bobbins, and the bobbins pass through the bobbin. The library can realize automatic change of bobbins.

A further technical solution further includes a yarn feeding mechanism, the yarn feeding mechanism is located between the spinning device and the yarn storage mechanism; the yarn feeding mechanism includes a top roller and an output roller, the top roller and the The output roller is installed on the frame of the spinning machine, the top roller is in contact with the output roller, and drives the output roller to transport the yarn to the yarn storage mechanism for storage.

In a further technical solution, the yarn storage mechanism includes a yarn storage roller and a flyer, the yarn storage roller is installed on the frame of the spinning machine, the flyer is installed on the yarn storage roller, and the flyer is beneficial to guide the yarn and reduce the rotational resistance of the yarn.

In a further technical solution, the drafting mechanism is sequentially provided with a rear roller pair, a third roller pair, a middle roller pair and a front roller pair along the direction of the yarn, and the drafting mechanism can regularly draw the yarn sliver. At the same time, the sliver gradually reaches the predetermined thickness by drawing thin, so that the fibers in it are gradually straightened, and the hooks are gradually eliminated.

A further technical solution also includes a detection mechanism installed on the frame of the spinning machine; the detection mechanism is located between the yarn feeding mechanism and the yarn storage mechanism, and includes an electronic yarn clearer and a tension sensor to monitor the yarn The quality of the yarn is improved, the yarn defects that affect the product quality are removed, the quality of the yarn is improved, and the amount of waste yarn is reduced.

An automatic doffing and yarn loading method of a spinning device adopts the above-mentioned spinning device, comprising the following steps:

Step 1: Doffing, when the yarn needs to be cut, control the winding mechanism to stop winding, hold the yarn through the gripper on the gripping arm and cut the yarn;

Step 2: Load the yarn, operate the bobbin magazine to move down, drop the bobbins in the bobbin magazine to the top of the drum, and close to the outer circumference of the drum, at this time, close the chuck so that the cradle arm clamps the bobbins , and clamp the yarn between the bobbin and the chuck with the gripper. After the gripping is done, the drum is rotated and the yarn held by the gripper is released.

This method utilizes the synergy of the cradle arm, the chuck and the drum in the winding mechanism, and the clamping arm and the gripper in the yarn cutting mechanism to jointly complete the automatic doffing and automatic yarn loading steps, making the whole complicated installation and debugging. The operation and action process become simple and reliable, and each spinning unit achieves non-interference with each other, and there is no need to stop and wait when changing the bobbin, realizing continuous production, which can improve the manufacturing efficiency of spinning in each spinning unit, thereby improving spinning. The overall production efficiency of the yarn installation.

As a further technical solution, in the first step, after the gripper cuts the yarn, the cradle arm is reversed to drive the bobbin after the winding is completed to rotate to the top of the conveyor belt, and the chuck is opened to make the bobbin fall on the conveyor belt. On the conveyor belt, the wound package can be conveyed through the conveyor belt to complete the integrated processing process.

In a further technical solution, after the bobbin falls on the conveyor belt, the cradle arm is rotated forward; the rotation of the gripping arm drives the gripper to hold the yarn and rotate to the top of the chuck together. This operation can directly transfer the yarn. The wire is clamped between the bobbin and chuck and requires no additional manipulation for manual alignment.

3. Beneficial effects

Adopting the technical scheme provided by the present invention, compared with the prior art, has the following beneficial effects:

(1) In the spinning process of the present invention, when the bobbin reaches a certain weight or reaches a certain length, the control mechanism of the spinning unit controls the winding mechanism to stop winding, and simultaneously controls the spinning speed to decrease or the spinning delay to stop, The yarn is clamped and cut by the gripper. After the cradle arm rotates to transport the finished bobbin and install the new bobbin, close the chuck of the cradle arm to hold the bobbin. Rotate the gripping arm and drive the gripper holding the yarn to rotate to the top of the chuck of the cradle arm. The drum rotates and releases the yarn held by the gripper, so that the yarn can pass through the cradle arm clamp. The coil is wound on the bobbin together, and the automatic doffing and yarn loading action program is completed, in which the doffing and yarn loading methods can be automatically completed in the spinning unit without stopping the spinning, and each spinning All units can be completed independently, the operation process is relatively simple, no need to stop and wait, and the spinning efficiency is improved.

(2) The present invention drives the yarn feeder to reciprocate through the driving device, so that the yarn can be traversed and wound onto the bobbin, and the yarn feeder can play a role of threading and guiding the yarn, so that the yarn Can be better wound onto the bobbin.

(3) In a spinning device of the present invention, the bobbin storage can be automatically raised and lowered, and the empty bobbin can be placed at the target position by raising and lowering the bobbin storage, and the next round of spinning can be performed without manual installation and removal of the bobbin. Tube, convenient and quick.

(4) In the present invention, the spun yarn sent from the spinner is sandwiched between the delivery roller and the top roller, and the delivery roller can be driven to deliver the spun yarn to the storage roller.

(5) The flyer in the yarn storage mechanism of the present invention can guide the yarn to the outer peripheral surface of the yarn storage roller for storage, and can continuously guide the yarn to the winding mechanism with a certain tension, and the flyer is conducive to guiding the yarn, And it can reduce the rotational resistance of the yarn, and also has a higher anti-winding stiffness.

(6) The drafting mechanism of the present invention twists the sliver into fine fiber bundles through four roller pairs, and transports the twisted fiber bundles to the spinner for spinning. The four roller pairs are respectively composed of Four sets of motors are independently driven, and the speed of each pair of rollers can be freely set to control the shape, twist and output speed of the yarn.

(7) In the detection mechanism of the present invention, the yarn generated by the spinning device is detected by the electronic yarn clearer and the tension sensor before being wound by the yarn storage roller. The electronic yarn clearer can monitor the thickness of the running yarn, and the tension sensor can monitor the thickness of the running yarn. Monitor the tension value of the running yarn, when it is detected that the yarn is defective or the tension value of the yarn is lower than the set value, the detection signal is sent to the unit controller, and the unit controller sends a signal to cut the yarn, which can strengthen the yarn The quality of the thread reduces the generation rate of waste yarn.

Description of drawings

Fig. 1 is the structural representation of the spinning device of the present invention when spinning and when the tube is full;

Fig. 2 is the structural representation when the cradle arm is rotated to doffing during the spinning process of the spinning unit of the present invention;

Fig. 3 is the structural representation of the action of the independent bobbin magazine of the spinning unit of the present invention;

4 is a schematic structural diagram of the action of the clamping arm of the spinning unit of the present invention;

Fig. 5 is the action process diagram of the spinning unit cradle arm and the clamping arm of the present invention;

6 is a schematic structural diagram of the chuck of the cradle arm of the present invention in an open state;

Fig. 7 is the top view of Fig. 6;

8 is a schematic structural diagram of the chuck of the cradle arm of the present invention in a closed state;

FIG. 9 is a plan view of FIG. 8 .

In the picture:

1. Cotton guide tube; 2. Yarn; 3. Fiber bundle; 4. Spinning device; 5. Yarn; 6. Bobbin; 7. Bobbin storage; 8. Conveyor belt;

10. Drafting mechanism; 11. Rear roller pair; 12. Third roller pair; 13. Middle roller pair; 14. Apron; 15. Front roller pair;

20. Yarn feeding mechanism; 21. Top roller; 22. Output roller;

30. Detection mechanism; 31. Electronic yarn clearer; 32. Tension sensor;

40. Yarn storage mechanism; 41. Yarn storage roller; 42. Drive motor; 43. Flyer;

50, winding mechanism; 51, traverse; 52, yarn guide; 53, drum; 54, cradle arm; 55, chuck;

60. Yarn cutting mechanism; 61. Clamping arm; 62. Gripper.

Detailed ways

In order to further understand the content of the present invention, the present invention is described in detail with reference to the accompanying drawings. In this specification, "upstream" and "downstream" mean upstream and downstream of the running direction of the sliver, fiber bundle and yarn during spinning.

Example

A spinning device and an automatic doffing and yarn loading method of the present embodiment, the spinning device is a part of the spinning machine, and the conventional components such as the frame and the motor of the spinning machine are omitted, as shown in Figures 1 to 9 , including several spinning units. In the running direction of the yarn 5, the spinning unit includes a cotton guide tube 1, a drafting mechanism 10, a spinning device 4, a yarn storage mechanism 40 and a winding mechanism 50, which are arranged in sequence. The winding mechanism 50 is electrically connected to the control mechanism of the spinning unit, and the control mechanism of the spinning unit is used to control the opening and stopping of the winding mechanism 50 and control the spinning speed of the entire spinning unit; the winding mechanism 50 It includes a cradle arm 54 and a drum 53; one end of the cradle arm 54 is rotatably connected to the frame of the spinning machine, and the other end is installed with a chuck 55; the drum 53 is rotatably connected to the frame of the spinning machine, and its The outer periphery is close to the outer periphery of the bobbin 6 clamped by the chuck 55; the spinning unit further includes a yarn cutting mechanism 60, and the yarn cutting mechanism 60 includes a clamping arm 61; one end of the clamping arm 61 is connected to the spinning The frame of the machine is movably connected, and a holder 62 is installed at the other end.

The spinning device includes a body control mechanism (not shown in the figure) that centrally manages multiple spinning units. The spinning process in this embodiment is that the sliver 2 is led out from the cotton guide tube 1 and passed through the drafting mechanism. 10 After drafting and twisting, it becomes fiber bundle 3, and spinning device 4 twists the fiber bundle 3 after drafting, so that fiber bundle 3 becomes yarn 5. After yarn 5 comes out from spinning device 4 The yarn storage mechanism 40 performs transitional yarn storage, and the yarn storage mechanism 40 sends the yarn 5 to the winding mechanism 50. The winding mechanism 50 can wind the yarn 5 on the empty bobbin 6 to form a package 9 , when the package 9 reaches a certain weight or the yarn 5 reaches a certain length, cut the yarn 5 and replace it with a new bobbin 6 . At present, when the existing spinning device needs to change the bobbin, the work trolley is generally used for automatic doffing. Because the work trolley needs to carry out complicated installation and debugging operations and operation process debugging before use, and the work trolley is short and short. It is difficult to complete the complex action flow of the entire doffing, yarn suction, yarn feeding and upper tube in time, so the entire automatic doffing process becomes complicated. On the other hand, the work trolley cannot complete the whole process of automatic doffing and yarn feeding on the bobbin without stopping the spinning. The spinning unit needs to be shut down, and the number of work trolleys is limited, so it is necessary to stop and wait. , reducing the overall working efficiency of the spinning device.

In view of the above defects, the present application aims to provide a spinning device with a simple structure, and each spinning unit can complete the functions of automatic doffing and yarn feeding without stopping spinning. The spinning unit in this embodiment includes a cotton guide 1 , a drafting mechanism 10 , a spinning device 4 , a yarn feeding mechanism 20 , a detection mechanism 30 , a yarn storage mechanism 40 , a winding mechanism 50 and a yarn cutting mechanism 60 .

The drafting mechanism 10 is sequentially provided with a rear roller pair 11 , a third roller pair 12 , an intermediate roller pair 13 and a front roller pair 15 along the running direction of the yarn 5 , and an apron is installed on the intermediate roller pair 13 14, and each roller pair is rotationally driven at a predetermined rotational speed. Drafting is the process of regularly drawing and thinning the sliver 2, so that the fibers in it are gradually straightened, the hooks are gradually eliminated, and at the same time, the sliver 2 gradually reaches the predetermined thickness. During drafting, the fibers are gradually drawn out from the surrounding fiber groups one by one. Due to mutual friction, the hooks are gradually eliminated and the curls are gradually straightened. The drafting mechanism 10 is provided near the downstream of the spinning machine, and the sliver 2 coming out of the cotton guide tube 1 is fed into the drafting mechanism 10 to be drafted to form the fiber bundle 3 .

The fiber bundle 3 drafted by the drafting mechanism 10 is supplied to the spinning device 4 , and the spinning device 4 twists the fiber bundle 3 supplied from the drafting mechanism 10 to generate the yarn 5 . The spinning device 4 in this embodiment generates a swirling airflow in the spinning chamber using compressed air ejected from an air-jet spinning nozzle, and twists the fiber bundle 3 with the swirling airflow to generate an air-like structure of the yarn 5 .

A yarn feeding mechanism 20 is provided downstream of the spinning unit 4. The yarn feeding mechanism 20 includes a top roller 21 and an output roller 22. The top roller 21 and the output roller 22 are installed on the frame of the spinning machine. The top roller 21 is in contact with the output roller 22, and the center of the top roller 21 is a steel roller, which is covered with leather or artificial rubber to increase friction. By sandwiching the yarn 5 discharged from the spinner 4 between the top roller 21 and the output roller 22, and rotating the output roller 22 with a motor (not shown in the figure), the yarn 5 can be sent to the yarn storage. Mechanism 40 delivers.

The yarn storage mechanism 40 is arranged downstream of the yarn feeding mechanism 20, and includes a yarn storage roller 41, a flyer 43 and a drive motor 42. The yarn storage roller 41 is installed on the frame of the spinning machine, and the flyer 43 is installed on the On the yarn storage roller 41 , both the yarn storage roller 41 and the flyer 43 are rotationally driven by the drive motor 42 . The flyer 43 is a twisting machine part, which is made of aluminum alloy or light metal material. It is composed of a sleeve, two wing arms and a pressing palm. The cross-sectional shape of the wing arms is conducive to yarn guiding and reducing rotational resistance, and has high anti-winding resistance. stiffness. The structure of the flyer 43 that can relatively rub against the yarn 5 during spinning, the yarn 5 can be guided to the outer peripheral surface of the yarn storage roller 41 for storage, and the flyer 43 can keep the yarn 5 in a certain tension. The winding mechanism 50 continuously feeds the yarn 5 . Thereby, the flyer 43 guides the yarn 5 to be temporarily stored on the outer peripheral surface of the yarn storage roller 41, and guides the yarn 5 to the winding mechanism 50 through the flyer 43 with a certain tension and continuously feeds the yarn 5.

The detection mechanism 30 is installed on the frame of the spinning machine, the detection mechanism 30 is located between the yarn feeding mechanism 20 and the yarn storage mechanism 40 , and includes an electronic yarn clearer 31 and a tension sensor 32 . The yarn 5 generated by the spinning device 4 needs to be detected by the electronic yarn clearer 31 and the tension sensor 32 before being wound by the yarn storage roller 41 . The electronic yarn clearer 31 is an electronic mechanical device for detecting and cutting yarn defects. The function of the electronic yarn clearer 31 is to monitor the thickness of the running yarn 5 . The tension sensor 32 is an instrument for measuring the tension value in the tension control process. The function of the tension sensor 32 is to monitor the tension value of the traveling yarn 5 .

During the spinning process, the electronic yarn clearer 31 can convert the thickness change of the yarn 5 into a corresponding electrical signal. If it is detected that the thickness of the yarn 5 does not meet the set value, the electronic yarn clearer 31 will generate yarn defects Detection signal, after the signal is processed, it will control the actuator to cut off the yarn defect that does not meet the set thickness. Similarly, when the tension sensor 32 detects that the tension of the yarn 5 is lower than the set value, yarn defects will also occur. The detection signal controls the cutting of the yarn 5, and removes the yarn defect that affects the quality of the product. The electronic yarn clearer 31 and the tension sensor 32 are used to detect the yarn 5 without damage to the yarn 5, and the yarn clearing effect of the electronic yarn clearer 31 is relatively good, the adjustment is also very convenient, and the amount of waste yarn is reduced.

The winding mechanism 50 is arranged downstream of the yarn storage mechanism 40. The winding mechanism 50 includes a traverse member 51, a drum 53, a cradle arm 54 and a chuck 55. The traverse member 51 contains a yarn guide 52. The yarn guide 52 is used for traversing and winding the yarn 5 onto the bobbin 6 held by the chuck 55 . The drum 53 is in contact with the outer peripheral surface of the bobbin 6. When the drum 53 rotates counterclockwise, it will drive the bobbin 6 to rotate clockwise. The yarn guide 52 reciprocates, and the drum 53 is driven to rotate by an independent motor (not shown), and the winding mechanism 50 rotates and drives the bobbin 6 in contact with the drum 53 to traverse and wind the yarn 5 on the drum 53 . The cradle arm 54 is rotatable around the root, and rotatably supports the bobbin 6 for winding the yarn 5. A driver (not shown in the figure) is connected to the cradle arm 54, and the driver can be For air cylinders, torque motors or other methods, even if the bobbin 6 winds the yarn 5 to form the package 9, the diameter of the package 9 will become larger, and the driver can keep the surface of the package 9 in place with the drum 53 continuously. so that the winding of the yarn 5 can be continued.

The spinning unit also includes a bobbin store 7, which is movably installed on the frame of the spinning machine and located above the drum 53; the bobbin store 7 contains a plurality of bobbins 6 , the bobbin 6 can be replaced automatically without manual operation, which saves time and effort.

And in this embodiment, the control mechanism of the spinning unit adopts PCB, which can make the system smaller and lighter, and realize high-speed signal transmission; and PCB adopts modern management, which can realize standardization, large-scale and automatic production, so as to ensure Consistency of product quality. Since the PCB is designed and produced on a large scale, once the system fails, it can be replaced quickly, conveniently and flexibly, and the system can be quickly restored.

In this embodiment, the spinning step before the yarn cutting is the existing spinning step. During the spinning process, the flow of doffing and yarn feeding is shown in FIG. 5 . This embodiment includes a sensor for detecting the number of turns of the bobbin 6. The sensor detects the number of turns of the bobbin 6 and converts the number of turns of the bobbin to obtain the weight of the bobbin 6 or the length of the yarn 5. , when the weight of the bobbin 6 reaches the specified value or the length of the yarn 5 reaches the specified value, the sensor sends a signal to the PCB, and the PCB controls the motor that drives the rotation of the drum 53 in the winding mechanism 50 to stop rotating, and then controls the drum 53 to stop winding winding, the bobbin 6 stops winding accordingly. At the same time, the PCB controls the spinning speed of the spinning unit to decrease, or delays the spinning to stop, and temporarily stores the spun yarn 5 on the yarn storage roller 41 . At this time, the gripper 62 in the yarn cutting mechanism 60 grips the yarn 5 and cuts the yarn 5. After the yarn cutting is completed, the gripper 62 grips the yarn 5 and is in a waiting state. The driver drives the cradle arm 54 to reverse, drives the finished package 9 to rotate to the top of the conveyor belt 8, and opens the chuck 55 of the cradle arm 54 to make the package 9 fall on the conveyor belt 8, as shown in Figure 1 As shown, complete the process of integrated processing and transportation. Next, the bobbin magazine 7 is moved down, and the spinning device is replaced with a new bobbin 6. The bobbin 6 is dropped on the top of the drum 53 and is close to the outer circumference of the drum 53. After the new bobbin 6 is replaced, drive the The machine-driven cradle arm 54 is rotated back to the initial position, so that the chuck 55 is closed and a new bobbin 6 is clamped, as shown in FIG. 2 . After clamping, the bobbin magazine 7 is moved back to its original position, the clamping arm 61 is driven to rotate, and the clamper 62 is driven to clamp the yarn 5 and rotate to the top of the chuck 55 of the cradle arm 54, as shown in FIG. 3 . As shown, the control mechanism controls the drum 53 to start to rotate, and at the same time the gripper 62 releases the clamped yarn 5, the drum 53 can drive the bobbin 6 and the yarn 5 to wind together, so that the yarn 5 can be wound on the bobbin 6, combined with Fig. 4, the automatic doffing and automatic yarn loading action procedures are completed.

Another embodiment is: when the weight of the bobbin 6 reaches a predetermined value or the length of the yarn 5 reaches a predetermined value, the control mechanism of the spinning unit controls the drum 53 in the winding mechanism 50 to stop rolling, and the drum 53 stops winding After that, the winding of the bobbin 6 is stopped accordingly. At the same time, the control mechanism of the spinning unit controls the spinning speed to decrease, or delays the spinning to stop, and temporarily stores the spun yarn 5 on the yarn storage roller 41 . At this time, the gripper 62 in the yarn cutting mechanism 60 grips the yarn 5 and cuts the yarn 5. After the yarn cutting is completed, the gripper 62 grips the yarn 5 and is in a waiting state. The driver drives the cradle arm 54 to reverse, drives the finished package 9 to rotate to the top of the conveyor belt 8, and opens the chuck 55 of the cradle arm 54 to make the package 9 fall on the conveyor belt 8, as shown in Figure 1 As shown, complete the process of integrated processing and transportation. Then, the driver drives the cradle arm 54 to rotate back to the initial position. At this time, the chuck 55 is in an open state. When the cradle arm 54 returns to its original position, it drives the clamping arm 61 to rotate, and drives the clamper 62 to clamp the yarn. The wire 5 rotates together to the front of the chuck 55 side of the cradle arm 54 and waits. At this time, the bobbin magazine 7 is moved down, the spinning device is replaced with a new bobbin 6, the bobbin 6 is dropped above the drum 53, and is close to the outer circumference of the drum 53, at this time, the operation chuck 55 is closed and clamped Put on a new bobbin 6, as shown in Figure 2, at this time the yarn 5 is clamped between the chuck 55 and the bobbin 6, as shown in Figures 7 and 8, this operation can directly clamp the yarn 5 in the Between the bobbin 6 and the chuck 55, no additional operational alignment or manual alignment is required. After clamping, the bobbin magazine 7 is moved up and returned to its original position, as shown in Figure 3. The control mechanism controls the drum 53 to start to rotate, and at the same time the gripper 62 releases the clamped yarn 5, the drum 53 can drive the bobbin 6 and the yarn 5 to wind together, so that the yarn 5 can be wound on the bobbin 6 , combined with Figure 8 and Figure 9, thus completing the automatic doffing and automatic yarn loading action program.

In the process of doffing and yarn loading, the control mechanism can control the speed of spinning, and store the yarn 5 twisted by the spinner 4 on the storage roller 41 in the yarn storage mechanism 40, so that the yarn can be spun. The unit does not stop spinning. And the gripper 62 The gripper 62 can be an air cylinder or other implementable manners, which is a device that holds an object and then manipulates the object, and can clamp and release the object while performing certain actions. When the gripper 62 grips the yarn 5, there are certain force constraints and shape constraints to ensure that the yarn 5 should be completely loosened during the process of moving, staying and loading.

Through the cooperative use of the winding mechanism 50 and the shearing mechanism 60, the synergy between the cradle arm 54, the chuck 55, the drum 6, the gripping arm 61, the gripper 62 and the bobbin 6 is used to jointly complete the spinning. Automatic doffing and automatic yarn loading steps of the unit. Without the automatic doffing trolley and without stopping the spinning, each spinning unit can successfully complete the action procedure of automatic doffing and yarn loading. The entire action process is relatively simple and reliable, and the automatic Doffing and automatic yarn feeding are carried out independently and do not interfere with each other, so there is no need to stop work and wait when changing bobbins, and continuous production can be realized, which can not only improve the manufacturing efficiency of spinning in each spinning unit, but also reduce the amount of waste yarn and improve spinning. Yarn production efficiency.

The present invention and its embodiments have been described above schematically, and the description is not restrictive, and what is shown in the accompanying drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. Therefore, if those of ordinary skill in the art are inspired by it, without departing from the purpose of the present invention, any structural modes and embodiments similar to this technical solution are designed without creativity, which shall belong to the protection scope of the present invention. .

Claims (10)

1. A spinning device, comprising several spinning units, along the running direction of the yarn (5), the spinning unit comprises a cotton guide tube (1), a drafting mechanism (10), a spinning device arranged in sequence (4), a yarn storage mechanism (40) and a winding mechanism (50), the winding mechanism (50) is electrically connected with the control mechanism of the spinning unit; the winding mechanism (50) includes a cradle arm (54) ) and a drum (53); one end of the cradle arm (54) is rotatably connected to the frame of the spinning machine, and the other end is provided with a chuck (55); the drum (53) is connected to the frame of the spinning machine Rotating connection, the outer circumference of which is close to the outer circumference of the bobbin (6) clamped by the chuck (55); it is characterized in that it also includes a yarn cutting mechanism (60), and the yarn cutting mechanism (60) includes a clamping arm (61); one end of the clamping arm (61) is movably connected with the frame of the spinning machine, and a clamper (62) is installed at the other end. 2 . The spinning device according to claim 1 , wherein the winding mechanism ( 50 ) further comprises a traverse member ( 52 ), and the traverse member ( 52 ) includes a yarn guide ( 2 . 3 . 51), the yarn guide (51) is used for traversing and winding the yarn (5) onto the bobbin (6) clamped by the chuck (55). 3. A spinning device according to claim 2, characterized in that it further comprises a bobbin storehouse (7), the bobbin storehouse (7) being movably installed on the frame of the spinning machine and located at the above the drum (53); the bobbin storage (7) contains a plurality of bobbins (6). 4. A spinning device according to claim 1, characterized in that it further comprises a yarn feeding mechanism (20), wherein the yarn feeding mechanism (20) is located between the spinning device (4) and the yarn storage between the mechanisms (40); the yarn feeding mechanism (20) includes a top roller (21) and an output roller (22), and the top roller (21) and the output roller (22) are installed on the machine of the spinning machine On the rack, the top roller (21) is in contact with the output roller (22). 5. A spinning device according to claim 4, characterized in that: the yarn storage mechanism (40) comprises a yarn storage roller (41) and a flyer (43), and the yarn storage roller (41) is installed On the frame of the spinning machine, the flyer (43) is mounted on the yarn storage roller (41). 6. A spinning device according to claim 5, characterized in that: the drafting mechanism (10) is provided with a rear roller pair (11), a third roller pair (11), a third A pair of rollers (12), a pair of intermediate rollers (13) and a pair of front rollers (15). 7. A spinning device according to claim 6, characterized in that: it further comprises a detection mechanism (30) installed on the frame of the spinning machine; the detection mechanism (30) is located in the yarn feeding mechanism Between (20) and the yarn storage mechanism (40), an electronic yarn clearer (31) and a tension sensor (32) are included. 8. An automatic doffing and yarn loading method of a spinning device, adopting a spinning device according to any one of claims 1-7, characterized in that, comprising the steps: Step 1: Doffing, when the yarn needs to be cut, the winding mechanism (50) is controlled to stop winding, and the yarn (5) is clamped by the gripper (62) on the gripping arm (61). )shear; Step 2: Load the yarn, operate the bobbin magazine (7) to move down, drop the bobbins (6) in the bobbin magazine (7) to the top of the drum (53), and stick to the outer circumference of the drum (53), this When the clamp (55) is closed, the cradle arm (54) clamps the bobbin (6), and the yarn (5) is clamped between the bobbin (6) and the clamp with the clamp (62). Between (55), after clamping, the drum (53) is rotated and the yarn (5) clamped by the clamper (62) is released. 9. The automatic doffing and yarn loading method of a spinning device according to claim 8, wherein in the step 1, after the gripper (62) cuts the yarn (5), The rack arm (54) is reversed to drive the coiled bobbin (6) to rotate to the top of the conveyor belt (8), and the chuck (55) is opened to make the bobbin (6) fall on the conveyor belt (8). 10. The automatic doffing and yarn loading method of a spinning device according to claim 9, characterized in that: after the bobbin (6) falls on the conveyor belt (8), the cradle arm (54) is placed on the cradle arm (54). Forward rotation; the rotation of the gripping arm (61) drives the gripper (62) to grip the yarn (5) and rotate to the top of the chuck (55).

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