CS231620B1 - Electromechanical converter - Google Patents

Abstract

A carriage 1, moved by a cam 3, carries electromagnets 2 which, when selected, raise pivoted barriers so that selection pins 4 are not moved by movement of the carriage 1. Non- selected electromagnets 2 do not pivot the barriers so that they engage the pins 4 which are then moved by the carriage to engage, e.g. the hooks of a dobby. <IMAGE>

Description

BACKGROUND OF THE INVENTION The present invention relates to an electromechanical transducer for driving pulses to power pulses for controlling a machine assembly of textile machines, in particular sheet metal machines, comprising at least one electromagnet.

Existing textile machines, especially leaf and jacquard machines, are most often controlled by cards of various designs, from which the control pulse is usually sensed by mechanical means, for example in the case of a punched card by reading needles and mechanical transducers leaf machine hooks. More recently, electromechanical transducers have been used in textile machines for converting a control pulse to a power pulse, which includes an electromagnet, by means of which the control pulse is converted to a power pulse. The electromagnet is usually stationary mounted and to its anchor is connected by means of a suitable transmission a controlled part, eg the aforementioned retaining hooks of the leaf machine.

Both known types of converters have some disadvantages. In the case of mechanical, this is a considerable single purpose and limitations resulting from the type of card memory. For electromechanical converters! these are primarily limitations resulting from the dependence of the force pulse level on the size of the electromagnet used.

SUMMARY OF THE INVENTION It is an object of the invention to provide an electromechanical transducer as simple as possible, reliable in operation, in which the magnitude of the force pulse

231 620 does not depend on the size of the electromagnet used. It is also an object of the invention to achieve a wide range of applications both for textile machines in which the program is card-reader and for use in those textile machines in which an unorthodox control is used, e.g.

This is achieved by an electromechanical transducer according to the invention, in particular in that the electromagnet is mounted on a carrier which is reciprocably movable along the end portion of the spring-loaded power pin mounted on the handle in front of the carrier, pivoting against the spring-loaded force. The spring pin is supported on the carrier by a spring clamp, connected to the armature of the electromagnet.

With regard to the simplicity of design, it is appropriate that the carrier is provided with clamps and is ^d ^ him guiding pin for ítlačnou ^ p ^^ ⁱ nu, through which the pulley upevněnV Noos-on or kept on zVlěru the drive cam for applying a reciprocating movement of the carrier .

In view of the low articulation and space-saving design, it is advantageous if a recess is provided on the carrier for the end pin of the force pin in front of which the mouth of the carrier struts spring-loaded from the bore, said front wall being configured as a bore.

To achieve the greatest reliability when using as little as possible! The size of the electromagnet is advantageous when the bore spring is supported on the support by means of an open joint on the brackets connected to the throat of the support, and is spring-loaded on the open joint side.

Advantageously, the bore suspension is formed of low sliding properties and is detachably connected to its central part with the electromagnet armature, since its hmooniness is reduced.

For the sake of simplicity of construction, it is advantageous that the guide pin is freely displaceable in the guide formed by the nV holder and there is a compression spring supported on it with one end against the holder and the other end against the carrier.

It is also preferred in an electromechanical converter

231 820 is easy to apply on existing leaf machines.

Further advantages and features of the invention will be apparent from the description of an exemplary embodiment shown in the drawing, wherein FIG. 1 is a sectional view of an electromechanical transducer in plane AA, FIG. 2; FIG. 2 is a plan view of an electromechanical transducer; Fig. 2 at maximum cam lift; Fig. 4 detail of the suspension bolt with the el ek tr oma gne tu anchor.

The electromechanical transducer comprises a reciprocating electromagnetic carrier 2, a drive cam 4, and a resilient power pin 4 arranged on the holder 1 in front of the electromagnet carrier 1. Preferably, the electromechanical transducer is arranged in a separate housing b which is detachably coupled to the textile machine.

The support 2 is mounted behind the holder 4 parallel to the power pin in the housing b in a guide 2 formed of shims 8, 2 fastened to the side walls 10 of the housing 6 by bolts 11. Once or with respect to the two pressure springs 12, the support 7 is pressed by a roller 13 mounted on a carrier 1 to a drive cam mounted on a shaft 14 mounted rotatably in the side walls 10 of the housing 2;

The compression springs 12 are arranged between the carrier 2 and the holder 2 on the guide pins 22, which are each anchored at one end on the carrier 2 ^{and the} other end slidably mounted in the holes 32 in the holder 2. the carrier 2 need not be supported in the guide 2 on the side walls of the housing.

The holder 2 is fixed to the side walls 10 of housing two screws 16. On the bracket 2 is slidingly mounted spring-loaded force transmitting pin 4 whose spring 2Ζ »J ^e One end on the projection 18 on the force transmitting pin 4 and the second end of the holder 2 Front part · 19 a force pin 4, intended to exert a force on the actuated part, e.g. a leaf machine retaining hook (not shown), is suitably shaped as required. A carrier 2 is reciprocated along the rear portion 20 of the power pin 4 and is provided with a recess 21 for the rear portion 20 of the power pin 4 in front of its mouth at the carrier wall 22 and at the same time pivotable against the end of the power pin 4. a spring bolt 23 is arranged on the carrier 2. If the rear portion 20 of the power pin 4 is dropped below the level of the carrier 2, the recess 21 on the carrier 1 is not necessary. 2з1 его

Spring-loaded barrier 23 It is controlled by solenoid 2. When

In a more complex shape as shown in FIG. 4, however, it is preferable to apply a resilient material to the spring bolt 23 and the spring bolt 23 to its central part with the armature 24, e.g. rivets 25.

On the carrier 1, the spring bolt 23 is mounted together with the electromagnet 2 by means of a holder 26 which is fixed to the carrier 1 by screws 27. The electromagnet 2 is mounted on the holder 26 by screws 2B. Resilient bolt 23 is connected with an open kloubem.29 bracket 30 fastened by bolts 31 - to the holder 26 with spring 27 is kept disengaged against the force dance Talita 4 · ED ^{in BC} was repeated in ^Yb closers ²¹ Cel side ^of the carrier 22 ^p e 1_ · ^T o amortized to ^P from the rU ^from a Measured záivora 23. If the force on it engages the pin 4, moved by a small distance. and rested against the front wall 22 of the carrier 1, which is suitably provided for this purpose.

The function of the electromagnetic transducer, for example when shifting the retaining hook to the towing hook of a leaf machine not shown, proceeds as follows:

The rake cam is synchronously driven (not shown) with a leaf machine. By rotating the drive cam 6, a reciprocating movement of the electromagnet 2 carrier 2 is inferred. When the pulley 13 moves along a small diameter of the drive cam, a control impulse is given, which the electromagnet 2 is connected or disconnected from the power supply. If, due to the control pulse of the solenoid 2, it is not energized, the spring bolt 23 is extended against the end of the power pin 4 and prevents it from penetrating into the recess 21. On the forward movement of the carrier 1. the pulley 13 after the increasing diameter of the drive cam is pushed against the action of the spring 17 and executes. force imptus, which is placed in the retaining hook (not shown) on the towing hook. However, if it is at a time when the pulley 13 is moving along the small diameter of the playing cam, it is brought on. a current pulse to the solenoid 2; · Pulls the armature 24 to the solenoid 2. Thus, the spring bolt · 23 is pushed away from the space · between the silw pin 4 and the recess 21.

231 620

Upon subsequent forward movement of the support 1, the rear portion 20 of the power pin 4 is inserted into the recess 21 without moving the power pin 4. A force pulse is not generated and there is no shifting of the retaining hook to the towing hook.

Similarly, the electromechanical transducer can operate, for example, on a knitting machine while operating the lock. The power pin then pushes the lock into action or keeps it locked in the forward movement. *

Claims (6)

THE INVENTION 231 620 CLAIMS 1. An electromechanical converter control pulses for the power pulse P ^ro Operation 'device textl turate-machines, in particular sheets of ^{eastern s} t ^r Oju, retracting at least one of ^the ele Romanet t, ^j wherein Ci ^is. Receiver ^that e ^ k ^ romigiet (2) in a ^p evnén to uosí ^u i (1 ≤ which is adapted pohyHivě reciprocatingly along the end portion (20) of the resilient force ..kolíku ⁽⁴⁾ mounted on a ^ ^d to r ^{for (5) straight} before the carrier (1), wherein the pivotable against the end of the spring loaded force of the pin (4) on the carrier ^{by (1)} contacting l-marries odpružerá of ^á Vora ⁽²³⁾ connection ^and an armature (24) of the electromagnet (2) . Second electromechanical transducer according to claim 1, wherein ^Z e uosí ^{u (i)} at the ^{beta of} en ^l i ^p o es ^least one guiding pin ⁽¹⁵⁾ for straight ^^^ uu spring (Ί2) via which the klddka 03), at ^p EVN Step ^a carrier ^C to G) ^ vz female ^Abe interference with driving ma va ^{at (3)} for applying a reciprocating movement of the carrier '(1). 3. Electromechanical transducer according to claim 1 or 2, vyzlralující in that it the carrier (1) is a terminal provided for ^UA gears ⁽²⁰⁾ force <WeHo pin ^{(4) of} the recess ^{(2 1) BC} e ^{d from} the mouth to the ^NO b1uí with ^ them ⁽²²⁾ nose ^ e / ¹⁾ extends by ^d elastic ^{TOWING and p} RUŽÍN of ^á Vora ⁽² 3) ^price mentioned ^ CONSTANTS s ^ ni ⁽²²⁾ is provided Jiko o ^p era ^p extended ^á raft ⁽² 3). Fourth electromechanical converter according to claim 3, in vyznaiuuicí ^(of E ^and Z sprung Vori ⁽² 3), it is uosí ^No. I ⁽¹⁾ uložieni pomooí open ou ^kl u ^{b '(2 9)} Ni ^to onaole ^{(3 0)} a pupil-coupling ⁽²⁶⁾ of the electromagnet ⁽²⁾ ni carrier ^C ^ G ^f is ^{a straight} ICEM cushioning ni 'sfriré open kioubu ^{(2 9) p} RUŽÍN ⁽² 7). 5. An electromechanical transducer according to claim 4, characterized in that the spring bolt (23) is formed of a material having a 231 620 with good sliding properties a It is detachably connected on its central part with the armature (24) of the electromagnet (2). An electromechanical converter according to claim 2, characterized in that the guide pin (15) is freely displaceable in a guide (32) formed on the holder (5) and there is a compression spring (12) supported on one end against the holder (5). and the other end of the carrier (i).