JP2829094B2 - Shinotsu operation control device - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a technique in a ring spinning machine, which relates a Shino splicing timing of a Shino splicing device that splices a spare Shino to a Shino being drafted with a lifting / lowering movement of a ring rail. .

2. Description of the Related Art When a Shinonaki bobbin that supplies Shino to the draft part with a spinning creel becomes a Kodama bobbin, a spare Shino is drawn out from a spare full bobbin prepared in advance on the Spinning creel and passed to the Shinotsu head, The splicing head advances to the upper part of the trumpet while holding the spare Shino, superimposes on the supply Shino from the Kodama bobbin, releases the spare Shino, and brings the spare Shino with the supply Shino to the draft section and joins the Shino splicer. Are known (Japanese Patent Application Laid-Open
−53425 etc.).

Problems to be Solved by the Invention As shown in FIG. 7, in a ring spinning machine, drafted yarn is ballooned between a snail wire 45 and a traveler 46 and wound around a bobbin 44. In the above-mentioned shinoshitsu, the tying portion (the shino is doubled) is drafted into a thick yarn portion, and ballooning is disturbed by centrifugal force due to the thick yarn portion, resulting in excessive snare. In some cases, the yarn was caught on the slab catcher 45a projecting sideways from the wire 45, and the yarn was broken.

Means for Solving the Problems The present invention pays attention to the point that the magnitude of ballooning is related to the winding tension applied to the yarn and the elevating position of the ring rail, and the draft is drafted by a ring spinning machine having a ring rail. In the Shino splicing device in which the spare Shino is spliced, and the spliced part is drafted into a thick thread and wound on a bobbin, a means for detecting the elevating position and elevating direction of the ring rail, A means for setting a Shinotsu signal output area within one chase of the ring rail based on the detection signal, and an output means for outputting a Shinotsu signal to the Shinotsu device in the Shinotsu signal output area; Is wound around the bobbin in the thick yarn winding suitable region in which the winding tension is large at the upper part of the chase, due to the succeeding portion that is joined by the Shino joint signal output in that region. Set as It is characterized by having been done.

Operation According to the above, the ascending / descending position and the ascending / descending direction of the ring rail are detected within one chase of the ring rail, and a Shinotsu signal output area (including an output point) is set within one chase based on the detection signal. In this area, the Shinotsu signal is output. If the Shinotsu signal is output in this area, the thick thread part of the follow-up part is less ballooning in one chase (upper side of the chase where the winding tension becomes large).
By setting to be wound around the bobbin, disturbance of ballooning due to the thick thread portion is reduced, and thread breakage is prevented.

Embodiment In FIG. 2, Shino exchanger 1 is equivalent to that of Japanese Patent Application Laid-Open No. 62-53425.
Shino R2 of the small ball bobbin SB and spare Shino R1 of the six full bobbins FB suspended on the spare rail 62 (FIG. 6 (1)) are spliced and exchanged. Move along the front of the. Shino Exchanger 1 has a full bobbin removal peg 2,
An empty bobbin removal peg 3, a spout nozzle 4 for sucking out spout R1 from the full bobbin FB, and a splicing head holding the spout R1 received by the spout nozzle 4.
25, a moving mechanism 10 that controls the movement of the Shinotsu head 25, a means 30 for detecting the elevation position of the Shino hanging plate 5, and the ring rail 6.
(FIG. 1) and a control device 50 for exchanging Shino.

In the moving mechanism 10, a pivot shaft 11 is rotatably and axially located between a pair of supports 1b fixed to both sides of the main body 1a of the Shino exchange 1 in the moving direction (perpendicular to the plane of FIG. 2). It is designed to reciprocate a fixed amount. The lower ends of a pair of swing links 12 are fixed to the pivot shaft 11. A sector gear 13 is fixed to an end of the pivot shaft 11, and a sector gear 15 of a swing arm 14 supported swingably on the main body 1a is meshed with the sector gear 13. The rear end of the oscillating arm 14 is connected to one end of a cam lever 17 which is oscillated by a shining operation cam 16 by an operation rod 18. The swing link 12 is urged toward the stopper 20 by a spring 19 between the swing link 12 and the main body 1a. The Shino operation cam 16 includes a drive motor 21, a speed reducer
22, an operating rod rotated by a chain 23 and a gear train 24
Raise or lower 18.

At the tip of the oscillating link 12, there are six Shino joint heads 25 at intervals of twice the spinning spindle pitch in the moving direction of the Shino exchange 1.
The shafts 26 at both ends of a support bar having a rocking support are swingably supported. One end of a link 27 is fixed to the shaft 26, and the link 27
The other end of the pin 27 is pin-connected to a piston rod 29 of a cylinder 28 for rocking a Shinotsu head, one end of which is pin-connected to the rocking link 12. The Shino joint head 25 is disclosed in Japanese Patent Application Laid-Open No. Sho 62-53425, and has a right grip position where a Shino grip lever (not shown) grips the spare Shino R1 of the full bobbin FB with respect to the Shino guide groove 25a. The small bobbin SB has three positions: a left grip position for gripping the Shino R2, and a neutral position for gripping none of the Shino. With this configuration, when the operating rod 18 is moved up and down while the piston rod 29 of the cylinder 28 is retracted and the Shinotsu head 25 is substantially horizontal, the Shinotsu head 25 moves upward from the standby position c1 in FIG. Swings between the Shinotsu position c2.

Next, a description will be given of the detecting means 30 for detecting the ascending position and the elevating direction of the ring rail 6. As shown in FIG. 6 (1), the detecting means 30 disposed below the Shino exchange 1 includes a vertical double-acting pneumatic cylinder 31 having a lower portion fixed to the main body 1a as shown in FIG. I have. A plate-like elevating member 33 is connected to the piston rod 32 of the pneumatic cylinder 31, and a protruding / retracting cylinder 35 of a detector 34 is horizontally fixed to a lower end side surface of the elevating member 33. The detector 34 is a piston rod of a retractable cylinder 35
It is rotatably fitted to the tip of 36. The lifting member 33 includes
A rack 37 that is longer than the entire vertical stroke of the ring rail 6 is formed. In this rack 37, a pinion integrated with an input shaft of an absolute type encoder (which outputs a rotation angle from a predetermined origin) 38 fixed to the main body 1a is provided. 39 are meshed. The lifting member 33 has a pressing roller 40 on the opposite side of the rack 37.
Guided by Therefore, if the upper and lower cylinder chambers of the pneumatic cylinder 31 are set to the atmospheric pressure while the detector 34 is mounted on the ring rail 6, the detector 34 follows up and down movement of the ring rail 6, and the rack 37 and the pinion The encoder 38 detects the elevating position of the ring rail 6 via 39. In addition, the encoder 38 also serves as a means for detecting the vertical direction, in the sense that the vertical direction is determined in step P1 of the program (FIGS. 3 and 4) described later using the vertical position signal from the encoder 38. I have.

Next, the control device 50 is configured mainly by a known microcomputer, and calculates a rising point of one chase from the operation part 51 and the elevation position and the direction of the ring rail 6, and based on the elevation point, a control point within one chase is obtained. Relay signal output area (rising point-
L1, rising point-L2) A program for setting and storing E1, E2... (FIG. 3) and an operation control program for the Shino exchange 1 (FIG. 4)
In addition to the figures, a storage unit 52 for storing the calculation results and external input values such as the delays L1 and L2 is provided. A keyboard 53 is connected to the controller 50 as input means for inputting the delays L1 and L2.
Is input.

In the present embodiment, when the Shinotsu signal X is output in the Shinotsu signal output area E1, the Shinotsu signal output area E1 moves the Shinotsu head 25 holding the spare Shino R1 to an intermediate position in front of the trumpet 7. From a certain state (FIG. 6 (4)), the spare Shino R1 is transferred to Shino R2 of the Kodama bobbin SB above the trumpet 7, and the thick part where the transfer part is drafted is replaced by the next one. The chase is set so as to be wound around the bobbin 44 in the thick yarn section winding suitable area Q1. The thick yarn winding suitable area Q1 is obtained by trial spinning, and in relation to the winding tension in one chase,
Direction in which ballooning tension is increased and ballooning is suppressed,
For example, the thickening is set to a part while the chase is rising, and the ballooning is not easily disturbed by the thick thread in the thick thread winding suitable area Q1. In this embodiment, an output means for outputting the Shinotsu signal X based on the elevating position signal of the ring rail 6 is constituted by the steps of the operation control program.

The operation of the Shino exchange 1 having such a configuration will be described.
Back calculation from the thick yarn winding suitable area Q1 obtained by trial spinning,
The delays L1 and L2 are obtained and input to the control device 50. Since the thick yarn winding preferred positions Q1 and Q2 only rise with the chase, the delays L1 and L2 calculated backward from this position are the same for each chase. When the Shino bobbin in the front row 61 of the creel becomes the small bobbin SB, the Shino exchange 1 is mounted on the spinning machine 60 and stops at the first Shino exchange position (FIG. 6 (1)). First, the setting of the Shinotsu signal output area E1 in one chase will be described.
After the mounting, the piston rod 36 of the pneumatic cylinder 31 is moved to the rising end in a state where the piston rod 36 of the retractable cylinder 35 is retracted in advance and the detector 34 is separated from the ring rail 6.
The detector 34 is made to protrude, and then the lower cylinder chamber of the pneumatic cylinder 31 is opened to the atmosphere. Since the upper cylinder chamber is also open to the atmosphere, the lifting member 33 descends by its own weight, and the detector 34
Is mounted on the ring rail 6, and thereafter, the detector 34 follows the elevation of the ring rail 6. In such a state, the program of FIG. 3 operates at regular time intervals separately from the main program of FIG. The difference between the current encoder value output by the encoder 38 at a certain time and the previous detection value of the encoder 38 (the immediately preceding encoder value, which is stored in the storage unit 52) (for example, S1 and A1, A1 and S2 of FIG. 5) From the difference), it is determined whether the movement of the ring rail 6 has changed from ascending to descending (step P1), and the value immediately before the encoder when it changes to descending (that is,
A1) is a rising point, so it is delayed L1, L2 from this rising point A1.
Is calculated, and a Shino-joint signal output area E1 is set by these, and stored in the storage unit 52 (step P
2). Since the rising point is updated to A2, A3,... Every time the chase is performed, the Shinotsu signal output area is also updated to E2, E3,.

In this way, the Shinotsu signal output areas E1 within one chase are set, while the Shino conversion operation is performed. The full bobbin FB of the spare rail 62 in the steps shown in the flowchart of FIG.
Then, the discharge nozzle 4 is raised to rotate the full bobbin FB to suck the spare shin end, and the suction and full bobbin rotation are continued in the step, and the discharge nozzle 4 is lowered to replace the preliminary shin R1. The head is transferred to the head 25, and the Shino joint head 25 grips the spare Shino R1 with the Shino grip lever (FIG. 6 (2)). When the Shino joint head 25 is made substantially horizontal from vertical by the operation of the cylinder 28 (FIG. 6 (3)), the spare Shino R1 is cut off with the outlet nozzle 4 and proceeds to the intermediate position in this state (No. 6 (4)). In this state, it is determined in a step whether or not the ring rail 6 is descending from the difference between the encoder current value and the immediately preceding encoder value and whether the ring rail position is in the Shinotsu signal output area E1. Despite descending, Shinotsu signal output area
Before E1, after waiting (step) until the Shinotsu signal output area E1 is reached, again just before the Shinotsu signal output area E1
, The Shinotsugi signal X is output in a step. The drive motor 21 is activated by this Shinotsu signal X, and the Shinotsu head 25 advances from the intermediate position to the upper side of the trumpet 7 and overlaps the Shino R2 of the Kodama bobbin SB to release the spare Shino R1 (step). The bobbin SB Shino R2 is cut (FIG. 6 (5)). During this time, the chase continues.
Go through 46. In the thick yarn winding suitable area Q1, the winding tension is gradually increased, so that ballooning is suppressed. Even if the succeeding portion passes through the thick yarn drafted in the draft portion 8, the ballooning is hardly disturbed, and Thread breakage can be prevented. Next step is full bobbin FB and creel front row 61
After exchanging the small bobbin SB and performing the shining, the step moves to the next work position. At this time, the detector 34 rolls while being mounted on the ring rail 6.

If the ring rail is descending in the step, but has already passed the Shinotsu signal output area E1, the process waits in the step and the Shinotsu signal X in the Shinotsu signal output area E2 of the next chase.
Will be output.

In this embodiment, the delays L1 and L2 may be set with reference to the intermediate position state of FIG. 6 (4) or may be set with reference to the state of FIG. 6 (3) where the Shinotsu head 25 is horizontal. Alternatively, the Shinotsu signal output area may be set with a time delay from the rising point. In addition, the ascending / descending direction and the ascending / descending position of the ring rail are determined by the absolute encoder, but it is needless to say that the present invention can be implemented by an incremental encoder.

In this embodiment, the present invention is applied to a mobile Shino exchange. However, the applicant of the present invention applied a patent for a spinning machine for a simultaneous Shinshin splicing device (a spinning machine that pulls out a spare Shino from a full bobbin prepared on a spare rail). Of each of the supply bobbins, so that when each supply bobbin becomes a small bobbin, it is attached to the spinning frame so that the splint is simultaneously spliced. The detection of the elevating position of the ring rail is preferably performed by detecting the rotation of the heart cam.

Other Embodiments In FIGS. 7 and 8, a detection switch 71 composed of a proximity switch or a photoelectric switch for directly detecting the ring rail 6 is fixed to the Shino exchange 1 as a means 30 for detecting the position of the ring rail 6 to be moved up and down. It is. In this embodiment, the detection switch 71 switches from a 1 minute ball (FIG. 7b1) to a 3 minute ball (FIG. 7b).
Mounted at a height that can detect chase up to 3). The signal from the detection switch 71 is input to the control device 50A. The control device 50A includes a time measuring means 72 for measuring a time t1 from the fall of the ring rail detection signal first entered from the detection switch 71 to the next rise each time the Shino exchange 1 stops at the predetermined Shino change position. Means 73 for comparing the output time of the ring rail detection signal from the detection switch 71 with a unit reference time stored in advance to determine the elevating direction of the ring rail 6 (the descending speed and the ascending speed of the ring rail 6 are different. The output time during which the ring rail 6 is detected is different), from the time t1 obtained by the time measuring means 72, the cycle T of the chase, the ratio between the chase ascending and descending speeds, and the delay times ta and tb from the chase ascending point. .. Are set in a single chase and stored therein, time measuring means 75 for measuring a time from the rise of a detection signal after the detection switch 71, and One embodiment At the intermediate position (FIG. 6 (4)) as described above, the means 76 for judging whether the value of the timer 75 is within the Shinotsu signal output areas E1, E2,... Have. Further, input means 53 for inputting the unit reference time and the cycle T of one chase is connected to the control device 50A.

When the Shino exchange 1 stops at the predetermined Shino exchange position, the ring rail 6 moves up and down, and two points (Y1 and Y2) that move from ascending to descending.
Alternatively, the detection switch 71 detects the ring rail 6 at two points (Y2, Y3) where the state changes from descending to ascending, and outputs detection signals Z1, Z2 (Z2, Z3) for a time corresponding to the elevating speed. Now point Y
When the ring rail 6 is detected at 1, Y2, a time t1 between the falling of the signal Z1 and the rising of the signal Z2 is measured by the time measuring means 72. Further, it can be seen that the output time of the later signal Z2 is compared with the unit reference time and measured from time t1 to time t1 from rising.
Then, the Shinotsu signal output area E1 set in the next one chase by the following equation is calculated and stored as time values Ta, Tb based on the rising point of the later signal Z2.

Ta = T−t1 / 3 + ta Tb = T−t1 / 3 + ta (The descending speed of the ring rail 6 is set to twice the ascending speed) At the same time, the time measuring means 75 starts measuring the time after the rising of the signal Z2. Separately from the above control operation, the replacement operation is performed in the same manner as in the above-described embodiment, and the value of the time counting means 75 is changed to the value at the time when the transfer head 25 is at the intermediate position as shown in FIG. It is determined whether or not the signal is in the signal output area E1, and the signal X is output. As a result, the thick yarn portion by the follow-up portion is wound around the bobbin 44 in the thick yarn portion winding suitable area Q1. When the time t2 is measured at the points Y2 and Y3 from the lowering of the bobbin rail 6 to the rising, the time values Tc and Td are calculated based on the rising of the signal Z3 input later, whereby the Shinotsu signal output area E1 is calculated. Is set.

Tc = 2 · (T−t2) / 3 + ta Td = 2 · (T−t2) / 3 + tb Note that the following chase Shinotsu signal output areas E2 are obtained by adding the chase period T to the above equations. However, the reference time values Ta, Tb (or Tc, Td) are calculated each time the Shino exchange 1 stops at a predetermined Shino exchange position.

In this embodiment, the elevating direction of the ring rail is determined based on the length of the input time of the ring rail detection signal of one of the detection switches. The direction in which the ring rail is raised or lowered may be determined based on the input of the rail detection signal. In this embodiment, the Shinotsu signal control in the range of 1 to 3 minutes is described. Thus, a plurality of detection switches can be provided.

Effects of the Invention As described above, according to the apparatus of the present invention, a spare Shino is transferred to a Shino drafted by a ring spinning machine having a ring rail, and the transfer portion is drafted to become a thick yarn portion. In a Shinotsu device to be wound around a bobbin, means for detecting the ascending and descending position and elevating direction of the ring rail, and means for setting a Shinotsu signal output area within one chase of the ring rail based on a detection signal from this detecting means. An output means for outputting a Shinotsu signal to the Shinotsu device in the Shinotsu signal output area, wherein the Shinotsu signal output area is formed by a follow-up section which is connected by the Shinotsu signal output in both areas. Since the yarn portion is set to be wound around the bobbin in the thick yarn winding suitable region where the winding tension is large on the upper side of the chase, the disturbance of ballooning caused by the thick yarn portion caused by the splicing is suppressed. The thick thread This has the effect of preventing thread breakage.

[Brief description of the drawings]

FIG. 1 is an overall view of the apparatus of the present invention, FIG. 2 is a schematic diagram of a Shino exchange, FIG. 3 is a flowchart showing a program for setting a Shino signal output area, and FIG. FIG. 5 is a flow chart, FIG. 5 is an explanatory view of chase, FIG. 6 is an explanatory view of Shinotsu operation, FIG. 7 is a view showing another embodiment, and FIG. 8 is an explanatory view of control of FIG. 1 ... Shino Exchanger, 6 ... Ring rail, 30 ... Detection means, 38 ... Encoder, 46 ... Traveler, 50, 50A ... Control device, 60 ... Spinning machine, 71 ... Detection switches E1, E2 … Shino signal output area, R1… Reserved Shino, R2… Shino being drafted, X… Shino signal

Claims (1)

(57) [Claims] 1. A shino splicing apparatus in which a spare spine is spliced to a shino drafted by a ring spinning machine having a ring rail, and the spliced portion is drafted into a thick thread portion and wound around a bobbin. Detecting means for the elevating position and the elevating direction of the ring rail, means for setting a Shinotsu signal output area in one chase of the ring rail based on a detection signal from the detecting means, and a Shinotsu device using the Shinotsu signal output area Output means for outputting a Shinotsu signal, and the Shinotsu signal output area has a thick thread portion formed by a follow-up section joined by the Shinotsu signal output in the area, and is wound on the upper side of the chase. A shino splicing operation control device characterized in that it is set so as to be wound around a bobbin in a region where winding of a thick thread portion where tension is large is suitable.