US2791820A

US2791820A - Automatic start-stop controller for textile manufacturing machines

Info

Publication number: US2791820A
Application number: US288933A
Authority: US
Inventors: Everette J Spencer
Original assignee: Individual
Current assignee: Individual
Priority date: 1952-05-20
Filing date: 1952-05-20
Publication date: 1957-05-14
Anticipated expiration: 1974-05-14

Description

y 14, 1957 E. J. SPENCER AUTOMATIC START-STOP CONTROLLER FOR TEXTILE MANUFACTURING MACHINES Flled May 20, 1952 I: m I Z I: I: I u a 1 a a 5 3 .r M 3 3 I a WR w H #14 RE 3 EW Wu 7 INVENTOR EVER ETTE J. S PENCER COPPER OXIDE F RECTIFIER ATTORNEY AUTOMATIC START-STOP CONTROLLER FOR TEXTILE MANUFACTURING MACHINES Everette .1. Spencer, Rockford, N. C., assignor to Gustave Miller, Washington, D. C.

Application May 20, 1952, Serial No. 288,933

8 Claims. (Cl. 28-51) This invention relates to improvements in textile machinery, and more particularly to the provision of an automatic start-stop controller for textile beamers and warp-- ers.

Heretofore, textile warpers have been provided with means for automatically stopping the motion of the machine when a thread or end of yarn cotton, silk, rayon, or the like, breaks or becomes slack. Such stop-motion devices have included electrical devices for throwing a belt off of a pulley, or for'throwing the machine out of gear. But no means have been provided to automatically restart a machine. This has been objectionable in that it has been necessary for an operator to go around to the back of the machine to mend or tie the thread or end of yarn, and then return to the. front of the machine to start the machine manually by a mechanical foot pedal, or by an electrical push button.

it is, therefore, an object of this invention to provide means to automatically restart a textile warper after a thread or end yarn has been mended.

A further object is to provide a mechanism to automatically restart a textile warper without requiring the use of belt throwers, manually controlled foot pedals, or push buttons.

A further object is to provide a fully automatic electrical control for stopping and starting a textile machine, which control is economical, saves time and man hours.

A further object is to provide an automatic stop and start device for a textile machine, which requires only one operator, who may be a considerable distance from the machine. All the operator has to do is to tie the broken threads, and the machine starts up immediately.

A further object is to provide an automatic start and stop mechanism which can be applied to existing warpers with slight alterations.

These and other objects are attained by the novel construction and arrangement of parts hereinafter described and claimed, and illustrated by the accompanying drawings, forming a part hereof, and in which:

Fig. 1 is a schematic diagram of an automatic start and stop device embodying my invention.

Fig. 2 is a diagram of a modified form of the invention.

Fig. 3 is a diagram of another modified form of the invention.

Referring to the drawings, in Fig. l, the automatic starting and stopping control device for textile machines is shown to comprise a plurality of eye-switches on an electric eyeboard or electric drop-wires 5, through the eyes of which the threads pass and hold said switches in normal open circuit position, allowing the threads or ends 6 to be wound on a beam 7 which is rotated by motor 8. The eye-switches or drop-wires are metal and are connected in the direct current circuit including a switch 9 and a relay 10.

An alternating current source of power 11, provides power at 220 or 110 volts, which passes through a transformer l2, and a rectifier 13, which may be of the copnitcd States Patent per oxide type or the like, to provide direct current at 6 to 8 volts.

The armature 14 of the relay is attached to an arm 15 connected to a mercury switch 16, the contacts thereof being connected by flexible wires 17 to a circuit 18 which includes the motor 8;

In operation, when a thread 6 breaks or becomes slack the respective eye-switch or drop wire 5 for that particular thread falls from. its normal position and across the.

direct current circuit, the drop-wire eye-switch being metal.

the direct current circuit and the relay- 10 is deenergized,

and mercury switch 16 is returned by a spring .19 to a position to close the circuit18 and start. the motor 8.

From the above description it will be seen that there. has been provided. a simple device for not only stopping, the motion of a textile machine, such as a warper or the like, when a thread or. the like breaks, but to also automatically restart the machine as soon as the thread or the like, has been repaired. The device enables the eiiicient. and almost constant operation. of. the machine, which requires only one operator whose. duty is simply to repair broken threads. It isv obvious that the device. can be readily applied to existing machines with very few alterations. 7

In Fig. 2 is shown a modified form of. the invention in which eye-switches or drop-wires 20 are in a direct current circuit. including a switch 21 and a rectifier '22 and a relay 23, which, when energized draws down an armature 2,4 normally held upward by a spring 25 to engage a contact 26 to complete the alternating current circuit 27 through a motor '28., When an eye-switch or. drop-wire drops due to breakage or slackage of thread as explained in connection with Fig.1, the relay 23 becomes energized, the armature 24'is drawn down to open circuit 27 and stops. the motor 28. When the thread is repaired, the eye-switch or drop-wire is raised by tension of the thread 6 of Fig. 1 into normal open-circuit position which deenergizes relay 23, armature 24 is pulled up byspring 25 which closes circuit at contact .26 and the alternating current circuit 27 is automatically reclosed to start the motor 28.

In Fig. 3 is shown a further modification in which alternating current only .is used. In this modification, a step-down transformer 30 provides low voltage current to a circuit including eye-switches or drop-wires 31, a switch 32, a relay 33 having a plunger 34 provided with an arm 35 connected to one end of a mercury switch 36 to tilt the latter to open an alternating current circuit 37 to stop motor 38 when a thread breaks or becomes slack. When the thread is repaired the tension of the thread raises the eye-switch or drop-wire 31 back into position or opencircuit which deenergizes relay 33, a spring 39 returns switch 36 to a position to close the circuit 37 and automatically restart the motor 38.

The above description is to be considered as illustrative and not limitative of the invention of which modifications may be made without departing from the spirit and scope of the invention as set forth in the appended claims.

The invention having been described, what is claimed is:

1.An automatic stop and start control for a textile manufacturing machine operating with a plurality of threads which are normally in tension and unbroken, said control comprising a thread controlled stop and start switch for each thread, each switch being held in ma- Patented May'14, 1957 V. 3 l chine operating position by its thread while unbroken and in proper tension, the breaking or loosening of its thread moving said switch to machine stopping position, and the tieing and retensioning of said thread automatically moving said switch to machine operating position, each said thread-control switch being in an electric circuit including a relay having an armature, a mercury switch connected to said armature, an alternating current circuit normally closed by said mercury switch, a machine operating motor controlled by said alternating current circuit to move said threads, said motor being thereby stopped when a thread breaks or slackens as its controlled switch means energizes said relay to tilt the mercury switch to open the alternating current circuit, and means toautomatically return the mercury switch to its normal machine operating position to close the alternating current circuit when the thread has been repaired or tightened;

2. A automatic stop and start control for a textile manufacturing machine operating with a plurality of threads which are normally in tension and unbroken, said control'comprising a threadcontrolled stop and start switch for each thread, each switch being held in machine operating position by its thread while unbroken and in proper tension, the breaking or loosening of its thread moving said switch to machine stopping position, and the tieing and retensioning of said thread automatically moving said switch to machine restarting position, a circuit including said thread-controlled switch and a relay, said circuit being closed when a thread breaks or slackens to cause its controlled switch means to energize said relay, a motor for operating said machine, means controlled by the energization of the relay to open a circuit through the motor to stop the machine, and for closing the circuit through the motor when the thread is repaired or tightened to automatically start the machine.

3. The structure set forth in claim 2 further characterized by a mercury switch controlled by the relay to open the circuit through the motor when a thread breaks.

4. The structure set forth in claim 3 further characterized by said means for closing the circuit through the motor when the thread is repaired or tightened comprising a spring connected to the mercury switch.

5. In a textile manufacturing machine, a plurality of thread-controlled switch means through which the threads of the textile machine pass and hold said switch means in machine operating position, an electric circuit including said switch means and a relay, a second electric circuit including a machine operating motor and a switch, means connected to said latter switch and relay to move said latter switch to a position to open said second circuit when a thread breaks or slackens to allow its controlled switch means to close the first circuit to energize the by the thread when repaired or tightened to return said latter switch automatically to a position to close the second circuit and restart said motor.

6. In a textile manufacturing machine moving a plurality of threads, a plurality of eye-switches held in machine operating position by taut threads extending therethrough, said eye-switches being in an electric circuit including a relay having an armature, a mercury switch connected to said armature, an alternating current circuit normally closed by said mercury switch, a machine operating motor controlled by said alternating current circuit to move said threads, said motor being stopped when a thread breaks or becomes slack to its eye-switch I to energize the relay to tilt the mercury switch to open the alternating current circuit and stop said motor, and means actuated by the repair or tensioning of the thread repositioning the eye-switch to automatically return the mercury switch to its normal position to close the alternating current circuit and restart the motor.

. pairing or tightening the thread for closing the circuit through the motor 'to automatically start the machine.

8. In a textile manufacturing machine, a plurality of drop-wire eye-switches through the eyes of which the threads pass, an electric circuit including said eye-switches and a relay, a second electric circuit including a machine operating motor and a switch, means connected to said switch and relay to move the switch to a position to open said second circuit and stop said motor when a thread breaks or slackens to allow the eye-switch to drop and close the first circuit to energize the relay, and means relay, said thread-controlled switch means being actuated actuated by raising the eye-switch by repairing or tightening the thread to return the switch automatically to a position to close second circuit and start the motor again.

References Cited in the file of this patent V UNITED STATES'PATENTS Colman Sept. 11, 1917 2,390,799 Linscnmeyer Dec. 11, 1945 2,400,556 Lambach May 21, 1946 2,405,218 Lambach Aug. 6, 1946 2,569,442 Anderson Oct. 2, 1951 2,569,475 Klein Oct. 2, 1951 2,689,393 Duryee Sept. 21, 1954