JPS6257941A - Method for controlling drive of sliver-delivery rolr of mule spinning frame - Google Patents

Abstract

PURPOSE:To simplify the operation for setting the spinnning condition, by setting the rotational speed of a sliver-delivery roller, the drafting ratio and the stop position of the sliver-delivery roller by controlling the revolution of a servo motor. CONSTITUTION:The sliver-delivery roller 20 is started simultaneous to the start of the traverse of the spindle carriage 23, and the revolution speed of the servo motor 10 is controlled by the signal transmitted from the encoder 5 to detect the rotational speed of the scroll 2in a manner to adjust the rotational speed of the roller 20 proportional to the traverse speed of the spindle carriage 23. The revolution of the roller 20 is continued until the signal emitted from the encoder 11 to detect the cumulative number of rotation of the motor 10 reaches the target cumuolative number of rotation of the roller 20 which is preset based on the drafting ratio. The transmission mechanism for the sliver-delivery roller can be simplified.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a method for controlling the drive of a sliver delivery roller in a mule spinning machine.

(Prior Art) In a conventional mule spinning machine, as shown in FIG. 3, a scroll S rotatably supported by a headstock is aligned in a spindle carriage C, and the scroll S1. : Through the lobes R and R rotated 55 times, the scroll S is driven to rotate in the forward and reverse directions corresponding to the outward movement and westward movement of the spindle carriage C, and the rotation of the scroll S is engaged and rotated in response to the outward movement and white path of the spindle carriage C. M is transmitted to the sliver feed-out roller SR via the clutch CR and the carrier gear 01, etc., which are released, and the sliver feed length is fed out from the sliver feed-out roller SR, and the spindle main 1: range C moves outward while the sliver feed-out roller SR is rotating. The carriage draft rate corresponding to the ratio of the distance
The spindle draft rate, which is applied after the sliver feed roller SR stops and when the spindle carriage S moves to the outer path end, is set by changing the number of teeth of the clutch CR. Change gear G2 that defines when to stop the rotation of the feed roller SR
I was setting it up by replacing it.

(Problems to be Solved by the Invention) Therefore, in the conventional mule spinning machine, the mechanism for transmitting rotation to the sliver delivery roller is complicated, and the operation to change the rotation conditions of the sliver delivery roller is complicated. There was a point.

SUMMARY OF THE INVENTION An object of the present invention is to provide a drive control method for a sliver delivery roller that can solve the above-mentioned problems and simplify the transmission mechanism for rotationally driving the sliver delivery roller, as well as simplify the operation of setting the rotation conditions of the sliver delivery roller. It is to provide.

(Means for Solving the Problems) The present invention starts a servo motor provided for rotationally driving a sliver feed roller mounted rotatably horizontally in synchronization with the start of outward travel of a spindle carriage. In addition, a first roller provided for detecting the rotational speed of the scroll rotationally driven by the running operation of the spindle carriage.
A second detection device is provided to proportionally control the rotation speed of the servo motor in accordance with the outward movement speed of the spindle carriage based on the speed signal of the detection device, and further to detect the cumulative rotation speed of the servo motor. When the number of pulses emitted from the device matches the cumulative rotation value of the sliver delivery roller, which is preset based on the draft magnification, the rotation of the servo motor is stopped, and the rotation of the sliver delivery roller is stopped. The gist of the present invention is a method for controlling the drive of a sliver delivery roller in a mule spinning machine, which stops the spindle carriage during its outward movement.

(Function) The present invention includes a servo motor for driving the sliver feed roller a1'', a first detection device for detecting the rotation speed of the scroll rotationally driven by the spindle carriage, and a first detection device for detecting the rotation speed of the scroll rotationally driven by the spindle carriage. A second detection device for detecting the sliver is provided, and when drafting and heating the sliver,
The sliver feed roller is started in synchronization with the start of external movement of the spindle carriage, and then the servo motor is activated by a signal from the first detection device so that the rotational speed of the sliver feed roller is proportional to the external movement speed of the spindle carriage. The sliver is fed out until the signal from the second detection device matches the integrated rotational value of the sliver feeding roller, which is preset based on the draft magnification. J: Continuing the rotation of the rollers.

(Example) Next, an example of an apparatus used to implement the present invention and a method of implementing the present invention using this apparatus will be described with reference to the drawings.

In the mule spinning machine, a spindle carriage 23 with a plurality of spindles 28 rotatably supported at its upper end is placed on a rail 26 via a wheel 27, and is driven by a variable speed drive mechanism of a headstock 24. Then, drive on the outside road from the headstock 24 side to the operation console 25 side (direction P1 in the figure), turn around at the end of the outside road, drive inside from the operation console 25 side to the headstock 24 side (direction P2 in the figure), turn back at the white roadside, and then turn around at the white roadside. Repeat the back-and-forth motion of traveling on the outside road again. However, the spindle carriage 23 is driven at an inconstant speed so that the traveling speed reaches the maximum during the travel.

The scroll 2 is rotatably supported via a scroll shaft 1 horizontally suspended on a headstock 24, and the scroll 2 has one end aligned with the rear side of the spindle carriage 23 and the other end of a rope 21, and one end of the rope 21. and the other end of the counter lobe 21 which is aligned on the front side of the spindle carriage 23 are aligned and wound, and the spindle carriage 23 is wound.
3 travels on the outer road and the inner road, one of the row 121 and the counter lobe 22 is wound around the scroll 2, and the other is unwound from the scroll 2, and the scroll 2 J
3 and scroll shaft 1 are connected to spindle carriage 2
It is rotated in forward and reverse directions based on the external and internal traveling operations of step 3.

The first encoder 5 is attached to the headstock frame 7 via a bracket 1-0 in order to detect the rotational speed of the scroll 2 and transmit a pulse signal corresponding to the speed of movement of the spindle carriage 23. Rotation of a gear 3 connected to the side is inputted to the first encoder 5 via an encoder gear 4 that meshes with this gear 3.

The servo motor 10 is installed on a stand 29 to drive and control a pair of sliver feed rollers 20, 20, which are rotatably suspended on the front end of a stand 29 placed on the side of the headstock 24. The rotation of the nervomotor 10 is transmitted through the gear 12 fitted to the motor shaft of the servomotor 10 and the gear 13 fitted to the sliver delivery roller drive shaft 14, so that both sliver delivery rows ''520
1 and a top roller 30 which is disposed on both sliver feed-out rollers 20 in a removable manner.

The sliver 32, which is removably placed on a sliver roller 31 that is reversibly suspended near the center of the stand 29, is pulled out from above the sliver roller 31 and connected to both sliver feed rollers 20 and the top roller 30. The sliver 32 sent out from the sliver delivery roller 3 is drafted and heated when the spindle carriage 23 runs on the outside, and is wound around a bobbin when the sliver delivery roller 20 is stopped and the spindle carriage 23 runs on the inside. taken.

Further, the servo motor 10 starts rotating in response to a start signal transmitted from a controller (not shown) in synchronization with the start of outward movement of the spindle carriage 1, and after starting, it follows the non-uniform running speed of the spindle carriage 23. In order to increase or decrease the rotational speed of the sliver feed roller 20, the rotational speed of the scroll 2, that is, the spindle carriage 2
The rotation speed of the servo motor 28 is proportionally controlled based on the number of pulses transmitted from the first encoder 5 corresponding to the traveling speed of 3, and the gearage draft l-rate between the sliver feed roller 20 and the spindle 28 is set. be done. A second encoder 11 is incorporated in the servo motor 10 to detect the cumulative number of rotations of the servo motor 10 since the start of rotation and to transmit a pulse signal corresponding to the cumulative number of revolutions of the sliver feed loan 20. , when the number of pulses transmitted by the second encoder 11 matches the cumulative rotation value of the sliver feed roller 20, which is preset based on the draft magnification by a digital sliver draft setting device (not shown) provided on the operation console 25. The rotation of the servo motor 10 is stopped, and the rotation of the sliver delivery roller 20 is stopped while the spindle carriage 23 is moving outward, and the rotation stop position of the sliver delivery roller 20 is defined by the second encoder 11, and the rotation of the sliver delivery roller 20 is determined by the second encoder 11, and the rotation of the sliver delivery roller 20 is stopped while the spindle carriage 23 is moving outward. The spindle draft rate between the stopped sliver delivery rollers 20 is set. Further, the servo motor 10 continues to stop until the spindle xerage 23 travels to the outer end, turns around, travels westward, and returns to the westward direction 61; and is activated again by the activation signal C.

Note that the servo motor 10 is connected to the spindle carriage 2 in order to prevent excessive tension on the spun yarn at the start of drafting.
The rotation is set to start slightly earlier than the start of promotion in 3.

Next, the operation and effects of the actual droplet example having the above-described configuration will be explained.

Now, in this example, the υ-bo motor 10, which is installed to rotationally drive the sliver feed roller 20 which is reversibly suspended at a fixed position, is started in synchronization with the start of outward movement of the spindle carriage 23, and the spindle The rotational speed of the servo motor 10 is determined by the spindle carriage 23 based on the speed signal of the first encoder 5 provided to detect the rotational speed of the scroll 2 which is rotationally driven by the traveling movement of the carriage 23.
The servo motor 10
When the number of pulses transmitted by the second encoder 5 incorporated in the sliver feed-out roller 520 matches the cumulative rotation value of the sliver feed-out roller 520, which is preset based on the draft magnification, the rotation of the servo motor 10 is stopped, and the sliver feed-out roller 520 stops rotating. 20
The rotation of the spindle carriage 23 is stopped during the outward movement of the spindle carriage 23.

Therefore, a transmission mechanism for transmitting rotation to the sliver sending roller 20, a mechanism for changing the rotation speed of the sliver sending roller 20 and setting the draft magnification,
There is no need for a clutch mechanism or the like that blocks these, and the transmission mechanism for the sliver delivery roller 20 can be significantly simplified, and the rotational speed of the sliver delivery roller 20, draft magnification, and sliver delivery can be adjusted by controlling the rotation of the servo motor 10. The rotation stop positions of the delivery rollers can be set easily and accurately, and the operation for setting the spinning conditions can be significantly simplified.

(Effects of the Invention) That is, the present invention starts the servo ball, which is provided for rotationally driving the sliver delivery roller that is rotatably mounted horizontally at a fixed position, in synchronization with the start of the spindle carriage's travel on the outer road. At the same time, the rotational speed of the servo motor is determined by the rotational speed of the servo motor based on the speed signal of a first detection device installed in the GJ for detecting the rotational speed of a scroll rotationally driven by the running operation of the spindle main 1/rage. The servo motor is proportionally controlled in accordance with the outer speed of the servo motor, and is preset based on the draft magnification and the number of pulses transmitted from the second detection device installed to roughly detect the cumulative rotation speed of the servo motor. J is configured to stop the rotation of the servo motor when the integrated rotational value of the sliver delivery roller coincides with the cumulative rotation value of the sliver delivery roller, and to stop the rotation of the sliver delivery roller during outward movement of the spindle killage. This has the effect of significantly simplifying the driving mechanism of the sliver delivery roller and greatly simplifying the operation for setting the spinning conditions.

[Brief explanation of the drawing]

The drawing shows one embodiment of equipment used in the present invention.
FIG. 1 is a plan view of the main parts, FIG. 2 is a side view, and FIG. 3 is a plan view showing the transmission mechanism of a conventional mule spinning machine. 2...Scroll 5...First encoder 10...Servo motor 11...Second encoder 20...Sliver feed roller 23...Spindle carriage Applicant Keiwa Kikai Seisakusho Co., Ltd. Agent Patent attorney Hidehiko Okada (and 2 others) Procedural amendments dated 1981/8160/7, Showa tθ Patent Application No. 191372' 6, number of inventions increased by amendment 7, subject of amendment: , s, r,
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l・Go one style ('vaginal figure 3

Claims (1)

[Claims] A servo motor provided for rotationally driving a sliver feed roller that is horizontally suspended in a fixed position is started in synchronization with the start of outward movement of the spindle carriage, and is rotated by the movement of the spindle carriage. The rotation speed of the servo motor is proportionally controlled in accordance with the outward movement speed of the spindle carriage based on the speed signal of a first detection device provided for detecting the rotation speed of the scroll; the number of pulses transmitted from a second detection device provided to detect the cumulative rotational speed of the
Stopping the rotation of the servo motor when a cumulative rotation value of the sliver sending roller that is preset based on a draft magnification matches, and stopping the rotation of the sliver sending roller while the spindle carriage is moving outward. A method for controlling the drive of a sliver sending roller in a mule spinning machine, characterized in that: