JPH0121981Y2 - - Google Patents

Description

[Detailed Description of the Invention] Technical Field The present invention relates to a driving device for a lap roller in a cotton comber.

Prior Art and its Problems In conventional cotton combing, the laps placed on the lap rollers are consumed during the spinning operation, resulting in empty tubes or residual laps with some laps left behind (hereinafter referred to as empty tubes including residual laps). When it comes to pipes),
The machine is stopped, this air-wound tube is removed from the lap roller, a new supply lap is placed, the lap end of this lap overlaps the end of the old lap, and the lap is spliced. I was restarting the machine. In this way, at the same time as the machine is restarted, the wrap roller is also driven, and the new wrap is continuously wound back.However, the wrap is rotated with the wrap roller biting into the weakly wound wrap around the outer periphery of the new wrap. The lap is fed out in excess, and as a result, the lap becomes slack, and contrary to the fact that the lap in the path from the unwinding part of the lap to the wrap conductor to the nipper knife is required to have a constant tension for spinning purposes. It was not possible to create this tension. Therefore, conventionally, after the lap splicing, the worker lifts the heavy lap and rotates the lap in the opposite direction to the direction in which the wrap is unrolled, thereby taking up the slack in the lap and creating appropriate tension in the lap. Not only is this a cumbersome task for workers, but in recent years,
As wraps have become larger packages, there has been a problem in that the weight of the wraps has become heavier than before, further increasing the burden on the operator.

Purpose and Summary The present invention aims to provide a cotton combed wrap roller drive device that can eliminate the slack in the laps that occurs during lap splicing as described above and reduce the labor of the worker. A clutch is inserted inside the machine, and after the clutch has been engaged and the machine has been operated for a predetermined period of time,
It is characterized in that it is made to leave for a predetermined time using a delay circuit.

Embodiment In Figs. 1 to 5, 1 is a cotton combed frame, 2 is a clutch body fixed to this frame 1 with bolts 3, and a transmission shaft 4 is rotatably mounted inside this clutch body 2. A bevel gear 5 is fixed to the input side. Reference numeral 6 designates a pawl clutch, the rotary side pawl clutch 6a is fitted to the transmission shaft 4 via bearings 7, 7 so as to be relatively rotatable, and the movable side pawl clutch 6b is a key fitted to the transmission shaft 4. 8 so that it can slide in the axial direction. Reference numeral 9 denotes an air cylinder equipped with a 4-port solenoid valve 10, and 11 denotes a support member, which are respectively attached to the clutch body 2. This support member 11
The middle part of the shifter 12 is connected by a pin 13 so that it can swing, and as shown in FIG. , is fitted into the guide recess 6c of the movable pawl clutch 6b.
When the 4-port solenoid valve 10 of the air cylinder 9 is energized, the piston rod 9a protrudes and the movable claw clutch 6b moves in the direction of disengaging from its engagement against the force of the spring 14. When the 4-port solenoid valve 10 of the air cylinder 9 is demagnetized, the piston rod 9a protrudes. moves backward and the movable pawl clutch 6b engages with the rotating pawl clutch 6a, and the force of the spring 14 further ensures this engagement and transmits the rotation of the transmission shaft 4 to the rotating pawl clutch 6a. It is becoming more and more common. A worm 15 is carved on the outer periphery of the rotating pawl clutch 6a. 16 is a bracket attached to the clutch body 2;
Worm wheel 1 meshing with the worm 15
7 and a transmission gear 18 integral with the worm wheel 17 are rotatably supported. Also,
An adjustment bracket 19 is attached to the bracket 16 so as to be swingable about the axis of the worm wheel 17. A first intermediate gear 20 is rotatably supported on the adjustment bracket 19, and the transmission gear 18 It's starting to fit together. Reference numerals 21 and 21 denote wrapper roller shafts, and driven gears 22 and 22 having the same number of teeth are attached to one end of the wrapper roller shafts 21 and 21, respectively. 22 is further integrally provided with a second intermediate gear 23. This second intermediate gear 23 meshes with the first intermediate gear 20, and also engages with the wrapper roller shaft 2.
The driven gears 22 and 22 of 1 and 21 are respectively connected to the frame 1.
The third intermediate gear 24 is rotatably supported by the third intermediate gear 24. Also, 25, 25 is Ratsuprora,
26 is a lap placed on this lap roller;
27 is a wrap conductor, 28 is a feed roller, 29 is a nipper knife, 30 is a cushion plate, 31 is a cylinder comb, 32 is a cylinder shaft, and the bevel gear 33 fixed to this cylinder shaft 32 is connected to the umbrella of the transmission shaft 4. Gears 5 are meshed.

Next, the delay circuit 100 that controls this mechanism will be explained. In Fig. 6, PB is a starting push button switch, MS is a magnetic switch, and this magnetic switch is connected to a motor drive circuit (not shown).
MS contacts are connected. Also, MS-1,
MS-2 is the normally open contact of the magnetic switch MS,
TR1, TR2 are timers, TR1-1, TR2-1
is a time-limited contact, CR1 is a relay, CR1-1, CR1
-2 is the normally open contact of relay CR1, SOL is the solenoid of the 4-port solenoid valve 10 of the air cylinder 9,
PB and ST are push button switches for stopping, and OL is a thermal relay contact. The setting time of the timer TR1 is determined by making a lap joint as shown in Fig. 5, closing the starting push button switch PB, and making sure that the overlap between the rear end of the old lap Y and the tip of the new lap X is at least close to the feed roller 28. After passing, the time limit contact TR1-1 is set to close and timer TR2 and solenoid SOL are energized, and timer TR2 is set to
In order to take up the slack in the wrap between the unwinding portion AA of the wrap 26 and the feed roller 28, which occurred before TR2 is excited, the drive of the wrap rollers 25, 25 is stopped for a certain period of time, and then the time-limiting contact TR2-1 is removed. It is set to open.
(In this embodiment, the set time is about 2 seconds.) Next, the operation will be explained. Ratsupro roller 25, 25
The lap 26 placed on top becomes an air-wound tube,
Stop the machine and move this air-wound tube to the lap roller 25,
25 removed from above and a new supply lap 26
is placed on the wrap rollers 25, 25, the wrap 26 is rolled back, and the old wrap Y and the new wrap X remaining on the wrap conductor 27 are superposed to form a lap joint. After the old lap Y has been properly disconnected, when the starting push button switch PB is closed for restart, relay CR1 is energized and its normally open contact CR1
-1, CR1-2 closes and magnetic switch
MS is energized and its normally open contacts MS-1, MS-2
is closed and timer TR1 is activated. At this time, the solenoid SOL of the air cylinder 9 is not energized, and therefore the moving pawl clutch 6b is activated by the spring 1.
4 and the rotating side pawl clutch 6a by air pressure, and after starting, the time limit contact TR of timer TR1
The rotation of the cylinder shaft 32 is transmitted to the wrap rollers 25, 25 until the cylinder shaft 1-1 is closed. The overlapping portion of the wrap 26 is spun through the feed roller 28 by the feed rotation of the wrap rollers 25, 25, and then the time limit contact TR1-1 closes and the timer is activated.
TR2 and solenoid SOL are energized, the cylinder rod 9a moves forward, the moving pawl clutch 6b is slid in the axial direction via the shifter 12, and is disengaged from the rotating pawl clutch 6a. No rotation is transmitted to the lap rollers 25,25. At this time, the wrap rollers 25, 25 do not rotate due to the engagement between the worm 15 and the worm wheel 17, and therefore the wrap 26 on the wrap rollers 25, 25 is not wound back, so that the unwinding portion of the wrap 26 is not rotated. The slack in the lap in the path from A to the feed roller 28 is removed, creating the tension necessary for spinning. When this tension is created, the preset time contact TR2-1 of timer TR2 opens, and relay CR1 is activated. is demagnetized, its normally open contact CR1-1, which was closed, is opened, timer TR1 is deenergized, time-limiting contact TR1-1, which was closed, is opened, solenoid SOL is demagnetized, and the 4-port solenoid valve 10 is opened. After switching, the movable pawl clutch 6b slides under the air pressure and the force of the spring 14 and engages with the rotating pawl clutch 6a, and the rotation of the cylinder shaft 32 is again transmitted to the worm 15, and the worm wheel 17 and the transmission Gear 18, first intermediate gear 20, second
The driven gear 22 is rotated via the intermediate gear 23, and the wrap 26 is wound back. In addition, normally open contact CR1
-2 is opened, but since the magnet switch MS is self-held, the cylinder shaft 32 continues to rotate without being de-energized to the motor (not shown), and the spinning operation is performed continuously. In this embodiment, the air cylinder 9 is used to engage and disengage the pawl clutch 6, but an electromagnetic clutch may also be used, for example. In addition, although a timer was used to stop the rotation of the lap roller for a predetermined period of time, a push button to temporarily stop the lap roller was provided separately from the start push button switch, and the solenoid of the solenoid valve was manually turned on and off.
You may.

Effects As described above, in the present invention, after a new lap is lap-joined with an old lap, when the lap is restarted, the lap roller is driven until the overlapping part of the lap passes at least the feed roller, and then the lap roller is driven again. Since the clutch interposed in the path is disengaged for a predetermined period of time using a delay circuit, it is possible to remove the slack in the lap that is excessively fed out, and it is also possible to eliminate the slack in the lap that was conventionally required to be removed by the operator. It is possible to eliminate the troublesome work of lifting a heavy wrap and winding it in the direction opposite to the direction in which the wrap is sent out, thereby reducing the burden on the worker.

[Brief explanation of the drawing]

Fig. 1 is a front view of the present invention, Fig. 2 is a plan view of Fig. 1, with the pawl clutch portion expanded and a cross section, and Fig. 3 is a partially omitted view from A in Fig. 1. FIG. 4 is a sectional view taken along line BB in FIG. 2, FIG. 5 is a schematic side view of the rap roller, etc., and FIG. 6 is a diagram showing a delay circuit. 6...Claw clutch, 25...Lap roller, 2
6...Lap, 100...Delay circuit, TR1,
TR2...Timer, PB...Push button switch for startup.

Claims (1)

[Scope of utility model registration request] In a cotton comber in which a lap is placed on a pair of lap rollers, the lap rollers are driven, and the lap is wound back for processing, a clutch is interposed in the drive path of the lap rollers, and the engagement of the clutch is controlled. 1. A cotton combing wrap roller drive device, characterized in that the machine is operated for a predetermined period of time by connecting the wraps, and then separated for a predetermined period of time by means of a delay circuit.