JP3006926U - Automatic stop device for tube forming mechanism in ring spinning machine and ring twisting machine - Google Patents

Abstract

(57) [Summary] [Purpose] To reduce the effort to stop the ring rail at the lowest position. [Structure] When the main motor 6 operates, the cam 4 operates and the lever 1 reciprocates, the drum 12 winds the chain 13 at each reciprocating motion, and the ring rail 16 repeats the traverse by the traverse and lifts. When the first limit switch 17 moves upward, the lowering motor 18 operates, the chain 13 rewinds, the ring rail 16 lowers, and when the second limit switch 19 operates, the lowering motor 18 stops. In the device in which the lowering of the ring rail 16 due to the rewinding of the chain 13 is stopped, a timer capable of adjusting the delay time is provided, and the first limit switch 1
When the timer 7 is activated, the timer is activated. When the delay time set in the timer elapses, the main motor 6 is powered off, the cam 4 and the lever 1 are inertially actuated, and the ring rail 16 is moved up and down by the reciprocating movement of the lever 1. The electric circuit which stops is provided.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an apparatus for automatically stopping a tube thread forming mechanism when a tube thread is formed in a ring spinning machine or a ring twisting machine.

[0002]

[Prior art]

 The tubular thread forming mechanism in the ring spinning machine and the ring twisting machine performs a movement to form a tubular thread, which is called building motion or copping motion. When the main motor operates, the ring rail moves up and down by repeating the traverse for the traverse, and ascends by the lift, and a yarn called a cup is formed.

When the ring rail rises by the amount of lift and reaches the uppermost position, the first limit switch operates, the lowering motor operates, and the worm wheel mechanism, the shaper wheel (ratchet wheel) mechanism and the drum reverse, The chain wound on the drum is rewound and the ring rail descends.

When the chain is rewound by the amount wound on the drum, the second limit switch is actuated, the lowering motor is stopped, and the main motor is stopped to move the ring rail up and down by the amount of traverse. And the lever stops.

[0005]

[Problems to be solved by the device]

 However, in the above-described automatic stopping device for the thread forming mechanism, even if the main motor is turned off, the main motor rotates due to inertia, and the cams and levers operated by the main motor operate due to inertia. However, since the inertial amounts of them are not always constant, the ring rail may not stop at the lowest position.

If the ring rail is not at the lowermost position, the position where the yarn is wound on the bobbin is displaced, and the desired tubular yarn is not formed. Takes time.

An object of the present invention is to solve the above conventional problems.

[0008]

[Means for Solving the Problems]

 According to the present invention, when the main motor of the ring spinning machine or the ring twisting machine operates, the cam operates and the lever reciprocates, and the drum provided on the lever winds a chain or rope with each reciprocating motion of the lever. When the ring rail connected to the chain etc. repeatedly moves up and down by the traverse, it rises by the amount of lift, the yarn is formed and reaches the uppermost position, and when the 1st limit switch is activated, the motor for descending operates and the drum moves. When the chain rail is rewound to lower the ring rail, the chain is rewound by the drum, and the second limit switch is actuated, the lowering motor stops and the drum rewinds the chain. In the automatic stopping device of the thread forming mechanism in which the descent of the ring rail due to the rewinding of the chain etc. is stopped, the delay time adjustable This timer is activated when the first limit switch is activated, and when the delay time set in the timer elapses, the main motor power is turned off, the cam and lever stop due to inertia, and the lever reciprocates. This is an automatic stopping device for a yarn forming mechanism, which is provided with an electric circuit for stopping the lifting and lowering of the ring rail.

[0009]

[Action]

 In the present invention, the delay time set in the timer with adjustable delay time takes into consideration the inertial amount of the main motor and the inertial amounts of the cams and levers operated by the main motor, and the cam positions the ring rail at the lowest position. Set to stop when set to. That is, the ring rail stops at the lowest position.

When the amount of inertia changes, the delay time set in the timer capable of adjusting the delay time is readjusted according to the amount of change in the amount of inertia. That is, even if the amount of inertia changes, the ring rail always stops at the lowest position.

[0011]

[Effect of device]

 In the present invention, even if the inertial amount related to the stop position of the ring rail changes, the ring rail can be stopped at the lowest position by adjusting the delay time set in the timer.

It does not take much effort to stop the ring rail in the lowest position.

[0013]

【Example】

 As shown in FIG. 1, the tube spinning mechanism of the ring spinning machine equipped with the automatic stopping device of the present example rotatably attaches the base end of the lever 1 to the machine base with the shaft 2 and arranges the lever 1 substantially horizontally. are doing. In the middle of the lever 1, a driven pin 3 projects laterally, and a substantially heart-shaped driving cam 4 is rotatably attached to a machine base by a shaft 5, and the peripheral surface of the driven pin 3 and the peripheral surface of the driving cam 4 are attached. And the shaft 5 of the driving cam 4 is connected to the main motor 6. When the main motor 6 is operated, the driving cam 4 rotates and the driven pin 3 moves up and down, and the lever 1 reciprocates up and down about the shaft 2 at its base end.

As shown in FIG. 1, at the tip of the lever 1, a rotary shaft 7 is laterally projected and borne, and a worm wheel 8 is fitted and fixed to the rotary shaft 7. Above the tip of the lever 1, a worm shaft 9 is supported in parallel with the lever 1, and the worm shaft 9 and the worm wheel 8 are meshed with each other.

As shown in FIG. 1, a shaper wheel 10 is fitted and fixed to the tip of the worm shaft 9. A feed claw 11 and a stop claw (not shown) are engaged with the shaper wheel 10. Every time the lever 1 reciprocates up and down about its axis 2, the shaper wheel 10 is rotated in one direction by the feed claws 11 and the worm wheel mechanisms 8 and 9 and the rotary shaft 7 rotate in the forward direction.

A drum 12 is fitted and fixed to the rotary shaft 7, as shown in FIG. One end of a chain 13 is fixed to the drum 12, and the other end of the chain 13 is fixed to a ring rail 16 via guide wheels 14 and 15 provided at an upper position. Each time the rotating shaft 7 rotates in the normal direction, the drum 12 rotates in the normal direction, the chain 13 is wound around the drum 12, and the ring rail 16 rises.

Each time the lever 1 reciprocates up and down about its shaft 2, the drum 12 moves up and down, and the ring rail 16 moves up and down by the amount of traverse.

After all, when the main motor 6 is operated, the ring rail 16 ascends while repeating the vertical movement h for the traverse h and the lift amount H as shown in FIG.

As shown in FIG. 1, the automatic stop device of the present example is provided with a first limit switch 17 which is activated when the ring rail 16 is lifted up and reaches the uppermost position.

An electromagnet (not shown) is provided to remove the feed claw 11 and the stop claw from the shaper wheel 10. As shown in FIG. 1, on the upper side of the lever 1, a motor 18 with a speed reducer for lowering is provided, and the rotating shaft of the motor 18 is connected to the base end of the worm shaft 9.

When the electromagnet is actuated to remove the feed claw 11 and the stop claw from the shaper wheel 10 and the descending motor 18 is actuated, the worm wheel mechanisms 8, 9 and the rotary shaft 7 and the drum 12 are reversed, and the drum 12 is moved. The chain 13 is rewound from the ring rail 16 descending.

As shown in FIG. 1, the lever 1 is provided with a second limit switch 19 which is activated when the chain 13 is wound around the drum 12 and rewound.

The electric circuit for automatic stop is configured as follows.

When the ring rail 16 rises by the amount of lift, the yarn is formed and reaches the uppermost position, and the first limit switch 17 operates, the electromagnet operates and the feed claw 11 and the stop claw come off the shaper wheel 10, The descending motor 18 operates, the drum 12 reverses, the chain 13 rewinds, and the ring rail 16 descends. When the chain 13 is rewound by the amount wound on the drum 12 and the second limit switch 19 is operated, the lowering motor 18 is stopped, the operation of the electromagnet is stopped, and the feed claw 11 and the stop claw are formed by the shaper. The wheel 10 is engaged, the reverse rotation of the drum 12 is stopped, and the lowering of the ring rail 16 due to the rewinding of the chain 13 is stopped.

When the first limit switch 17 is operated, as described above, the electromagnet that removes the feed claw 11 and the stop claw of the shaper wheel 10 is activated, while the timer that adjusts the delay time according to the inertial amount is activated. When the delay time t set in this timer elapses, the power of the main motor 6 is turned off, the operation of the cam mechanisms 3, 4, 5 and the lever mechanisms 1, 2 is continuously damped by inertia, and the cam mechanisms 3, 4, 5 and the lever mechanisms 1 and 2 are stopped, and the lifting and lowering of the ring rail 16 due to the reciprocal rotation of the lever 1 is stopped.

At this time, the delay time t set in the timer takes into consideration the inertial amount of the main motor 6 and the inertial amounts of the cam mechanisms 3, 4, 5 and the lever mechanisms 1, 2 operated by the main motor 6. However, the cam mechanisms 3, 4, 5 are set to stop when the ring rail 16 is at the lowest position. That is, the ring rail 16 stops at the lowest position.

When the amount of inertia changes, the delay time t set in the timer capable of adjusting the delay time is readjusted according to the amount of change in the amount of inertia. That is, even if the amount of inertia changes, the ring rail 16 always stops at the lowest position.

[Brief description of drawings]

FIG. 1 is a schematic view of a tube forming mechanism of a ring spinning machine equipped with an automatic stop device according to an embodiment of the present invention.

FIG. 2 is a diagram showing a lifted state of a ring rail in the thread forming mechanism of the example.

[Explanation of symbols]

 1 Lever 4 Drive cam 6 Main motor 12 Drum 13 Chain 16 Ring rail 17 1st limit switch 18 Motor for lowering 19 2nd limit switch H Lift minute h Traverse minute t Delay time set in timer

Claims (1)

[Scope of utility model registration request] 1. When a main motor of a ring spinning machine or a ring twisting machine operates, a cam operates to reciprocate a lever,
The drum installed on the lever winds up a chain or rope with each reciprocating movement of the lever, and the ring rail connected to the chain etc. moves up and down by the amount of lift while repeatedly moving up and down by the traverse, forming the yarn and reaching the highest position. When the first limit switch operates, the lowering motor operates, the drum rewinds the chain, etc., and the ring rail descends, and the chain etc. is rewound by the amount taken up by the drum, and the second limit switch Is activated, the motor for lowering stops, the rewinding of the chain, etc. by the drum stops, and the lowering of the ring rail by the rewinding of the chain, etc. is stopped. This timer is activated when the first limit switch is activated and the delay time set in the timer elapses. And, off the power of the main motor,
An automatic stopping device for a tube forming mechanism, which is provided with an electric circuit in which a cam and a lever stop due to inertial operation, and a lifting and lowering of a ring rail is stopped by a reciprocating movement of the lever.