GB2094029A - Electric circuit for control of machine for lasting shoe toes by gluing - Google Patents

Abstract

Electric circuit for control of a machine for lasting shoe toes by gluing, consisting of a control circuit and power circuit, characterized in that the control circuit is formed by eleven parallel connected control branches, while the power circuit is formed by parallel connected power branches. The control and power circuits are arranged as ladder networks which cause the machine to carry out a work cycle in response to the activation of photoelectric sensing units of the networks by the appropriate insertion of the lasting margin shoe upper into the units, by an operative, in an order dependent on whether it is a right or left shoe.

Description

SPECIFICATION Electric circuit for control of machine for lasting shoe toes by gluing This invention is concerned with an electric circuit for control of a machine for lasting shoe toes by gluing, consisting of a control circuit and a power circuit.

The well-known electric or electric-hydraulic circuits for control of machines for lasting shoe toes by gluing are mostly formed in such way, that the operator must, during the inserting of the lasting margin on the last, start the machine mostly by pedal operated elements, because the shoe upper must be held by both hands of the operator during the centering of the shoe and inserting it into the working system of the machine. The adjusting of the machine working system for the lasting of the right shoe, then the left shoe, is not controlled automatically and the operator has to set the machine for lasting of the one or the other shoe. It is both very difficult and laborious for the operator and it does not suit the safety and hygienic regulations in up to date plants, and owing to that adjusting could lead to bad quality and to increasing of the reject percentage.An electric circuit is also well-known, in which there is a photoelectric recognition unit for checking of the lasting margin level, but this well-known electric circuit does not solve the most substantial problem of working at the machine for lasting shoe toes by gluing, that means automatic clamping of the shoe in a drawing pliers system of the machine during the centering of the upper on the last and its adjustment for lasting of a right or left shoe.

The purpose of the invention is to develop an electric circuit for control of a machine for lasting shoe toes by gluing, which makes it possible to adjust the machine automatically for the lasting of the right or left shoe and which makes also possible automatic catching of the lasting margin of the shoe upper by its insertion into the drawing pliers jaws.

The objects of the present invention are fulfilled in an electric circuit for control of a machine for lasting shoe toes by gluing wherein control circuit is formed by eleven parallel connected control branches, whereof the first control branch is formed by series conected toe relay, toe amplifier and toe photoelectric sensing unit, the second control branch is formed by series connected left side relay, left amplifier and left photoelectric sensing unit, the third control branch is formed by series connected right side relay, right amplifier and right photoelectric sensing unit, the fourth control branch is formed by series connected toe auxiliary relay, first capacitor and first toe closing contact of the toe relay, the fifth control branch is formed by series connected side auxiliary relay, second capacitor, first right side closing contact of the right side relay, first left side closing contact of the left side relay and second toe closing contact of the toe relay, the sixth control branch is formed by series connected time auxiliary relay, cam opening contact of the cam relay and first side auxiliary closing contact of the side auxiliary relay, while the first side auxiliary closing contact is parallel by-passed by a second auxiliary control branch, which consists of a time auxiliary closing contact of the time auxiliary relay, the seventh control branch is formed by series connected left auxiliary relay, second left side closing contact of the left side relay and first right auxiliary opening contact of the right auxiliary relay, the eighth control branch is formed by series connected right auxiliary relay, second right side closing contact of the right side relay and first left auxiliary opening contact of the left auxiliary relay, the ninth control branch is formed by series connected delayed relay and time auxiliary switch-over contact of the time auxiliary relay, the tenth control branch is formed by series connected cam relay and delayed closing contact of the delayed relay, the eleventh control branch is formed by series connected safety relay, parallel by-passed by first auxiliary control branch, which consists of third capacitor, third right trigger contact of the right starting push button and third left trigger contact of the left starting push button, and the power circuit is formed by eight parallel connected power branches, where the first power branch is formed by series conected left trigger relay and second side auxiliary closing contact of the side auxiliary relay, while this second side auxiliary closing contact is parallel by-passed both by first auxiliary branch, consisting of the auxiliary closing contact of the toe auxiliary relay and also by second auxiliary power branch consisting of series connected second right auxiliary closing contact of the right auxiliary relay and first cam closing contact of the cam relay, the third power branch is formed by series connected right trigger relay, second left auxiliary opening contact of the left auxiliary relay and by second cam closing contact of the cam relay, while between the left trigger relay and the second side auxiliary closing contact is the third auxiliary power branch with its first end connected with the first power branch and its second end connected between the right trigger relay and the second left auxiliary opening contact with the third power branch and this third auxiliary power branch is formed by series connected first left trigger closing contact of the left trigger relay and by first right trigger closing contact of the right trigger relay and between these two contacts is connected the second power branch to the third auxiliary power branch, and the second power branch consists of series connected tree limit switch, side limit switch and toe limit switch, the fourth power branch, formed by series connected toe auxiliary opening contact and side auxiliary opening contact, is connected between the left auxiliary closing contact, which forms in the series circuit the fifth power branch with the left adjusting magnet, and the right auxiliary closing contact, which forms in the series circuit the sixth power branch with the right adjusting magnet, the fifth auxiliary power branch, formed by series connected first right trigger contact of the right starting push button, first left trigger contact of the left starting push button and first safety closing contact of the safety relay, is connected with its first end between the left trigger relay and the second side auxiliary closing contact at the first power branch and with its second end between left adjusting magnet and left auxiliary closing contact at the fifth power branch, the sixth power auxiliary branch, formed by series connected second right trigger contact of the right starting push button, by the second left trigger contact of the left starting push button and the second safety closing contact of the safety-relay, is connected with its first end between the right trigger relay and the second left auxiliary opening contact at the third power branch and with its second end between the right adjusting contact of the adjusting magnet and the right auxiliary closing contact at the sixth power branch, the seventh power branch is formed by series connected forward control magnet and second right trigger closing contact of the right trigger relay, while this right trigger closing contact is parallel by-passed by fourth auxiliary power branch consisting of second left trigger opening contact of the left trigger relay, while from the first to the seventh power branch are all connected at one contact place of the switch-over contact and at its second contact place there is connected the eighth power branch, consisting of series connected reverse control magnet, right trigger opening contact of the right trigger relay and the left trigger closing contact of the left trigger relay.

It will be appreciated that the electric circuit according to the present invention makes the objects of the invention possible with the photoelectric sensing units in its control and power circuits, that by means of dividing of the circuits into competent branches, enables automatic control during centering of the shoe upper in the drawing pliers system, respectively during adjusting of the machine working system for the lasting of the right or left shoe. The electric circuit according to the invention with the appertaining photoelectric sensing units removes at first the need for pedal operated elements and so makes the work of the operator much more simple especially during one particular very important operation during the lasting of footwear, namely at the beginning of the centering.The lasting machine for shoe toes with an electric circuit according to the invention suits fully the strong safety and hygiene regulations for work at the machine.

There now follows a detailed description, to be read with reference to the accompanying drawings. In the accompanying drawings there is shown the example of the electric circuit for control of a machine for lasting shoe toes by gluing. In Figure 1 there is shown a control circuit and in Figure 2 there is shown the power circuit.

The electric circuit for control of lasting machine for shoe toes by gluing consists of a control circuit and power circuit. The control circuit is formed by eleven parallel connected control branches and the power circuit consists of eight parallel connected power branches.

The first control branch l-l is formed by series connected toe relay KA 1, toe amplifierAZ 1 and toe photoelectric sensing unit SO 1. The second control branch 1141 is formed by series connected left side relay KA 2, left amplfierAZ2 and left photoelectric sensing unit SO 2. The third control branch 111411 is formed by series connected right side relay KA 3, right amplifierAZ3 and right photoelectric sensing unit SO 3. The fourth control branch IV-IV is formed by series connected toe auxiliary relay KA 4, first capacitor C 1 and first toe closing contact KA 1-1 of the toe relay KA 1.The fifth control branch V-V is formed by series connected side auxiliary relay KA 5, second capacitor C2, first right side closing contact KA 3-1 of the right side relay KA 3 of the third control branch 111411, the first left side closing contact KA 2-1 of the left side relay KA 2 of the second control branch ll-ll and second toe closing contact KA 1-2 of the toe relay KA 1, of the first control branch 14. The sixth control branch Vl-VI is formed by series connected time auxiliary relay KA 6, cam opening contact KA 9-1 of the cam relay KA 9 of the tenth control branch X-X and first side auxiliary closing contact KA 5-1 of the side auxiliary relay KA Sfrom the fifth control branch V-V, while the first side auxiliary closing contact KA 5-1 is parallel by-passed by second auxiliary control branch 02-02, which consists of time auxiliary closing contact KA 6-1, of the time auxiliary relay KA 6. The seventh control branch VII-VII is formed by series connected left auxiliary relay KA 7, second left side closing contact KA 2-2 of the left side relay KA 2 from the second control branch ll-ll and first right auxiliary opening contact KA 8-1 of the right auxiliary relay KA 8, of the eighth control branch VIII- VIII. The eighth control branch VIII- VIII is formed by series connected right auxiliary relay KA 8, second right side closing contact KA 3-2 of the right side relay KA 3 of the third control branch III-liland first left auxiliary opening contact KA 7-1 of the left auxiliary relay KA 7from the seventh control branch VII- VII. The ninth control branch IX-IX is formed by series connected delayed relay KT land time auxiliaryswitch-over contact KA 6-2 of the time auxiliary relay KA 6from the sixth control branch Vl-VI The tenth control branch X-X is formed by series connected cam relay KA 9 and delayed closing contact KT 1-1 of the delayed relay KT 1 from the tenth control branch X-X.The eleventh control branch XVIII-XVIII is formed by series connected safety relay KA 12, parallel by-passed by first auxiliary control branch 01-01, which consists of third capacitor C 3, third right trigger contact SB 23 of the right starting push button SB 2 and third left trigger contact SB 1-3 of the left starting push button SB 1.The first power branch Xl-XI is formed by series connected left trigger relay KA 10 and second side auxiliary closing contact KA 5-2 of the side auxiliary relay KA 5from the fifth control branch V-V, while this second side auxiliary closing contact KA 5-2 is parallel by-passed both by a first auxiliary branch 1-1 consisting of toe auxiliary closing contact KA 4-1 of the toe auxiliary relay KA 4 from the fourth control branch IV4V and also by second auxiliary power branch 2-2 consisting of series connected second right auxiliary closing contact KA 8-2 of the right auxiliary relay KA 8from the eighth control branch Vlil-Vliland first cam closing contact KA 9-2 of the cam relay KA 9 from the tenth control branch X-X. The third power branch XIII-XIII is formed by series connected right trigger relay KA 1 1,second left auxiliary opening contact KA 7-3 of the left auxiliary relay KA 7from the seventh control branch Vll-Vlland by second cam closing contact KA 9-3 of the cam relay KA 9 from the tenth control branch X-X. Between the left trigger relay K 10 and the second side auxiliary closing contact KA 5-2 is the third auxiliary power branch 3-3 with its one end conncted with the first power branch XI-XI, and its second end is connected between the right trigger relay K 11 and the second left auxiliary opening contact KA 7-3 with the third power branch XIII-XIII.This third auxiliary power branch 3-3 is formed by series connected first left trigger closing contact KA 20-1 of the left trigger relay K 10 from the first power branch XI-XI and by first right trigger closing contact KA 11-1 of the right trigger relay KA 11 from the third power branch XIII-XIII and between these two contacts is connected parallel the second power branch XII-XII to the third auxiliary power branch 3-3. The second power branch XII-XII consists of three series connected limit swiftches SK3, side limit switch SK2 and toe limit switch SK 1, while these three limit switches are controled by camshaft.

Thefourth power branch XIV-XIV, formed by series connected toe auxiliary opening contact KA 4-2 and side auxiliary opening contact KA 5-3, is connected between the left auxiliary closing contact KA 7-2, which forms in the series circuit the fifth power branch XV-XVwith the left adjusting magnet Y 1, and the right auxiliary closing contact KA 8-3, which forms in the series circuit the sixth power branch XVI-XVlwith the right adjusting magnet Y2.The fifth auxiliary power branch 5-5, formed by series connected first right trigger contact SB 2-1 of the right starting push button SB 2, first left trigger contact SB 1-1 of the left starting push button SB 1 and first safety closing contact KA 12-1 of the safety relay KA 12 from the eleventh control branch XVIII-XVIII, is connected with its first end between the left trigger relay KA 10 and the second side auxiliary closing contact KA 5-2 at the first power branch XI-Xland with its second end between left adjusting magnet Y 1 and left auxiliary closing contact KA 7-2 at the fifth power branch XV-XV.The sixth power auxiliary branch 6-6, formed by series connected second right trigger contact SB 2-2 of the right starting push button SB2, by the second lefttrigger contact SB 1-2 of the left starting push button SB land the second safety closing contact KA 12-2 of the safety relay KA 12 from the eleventh control branch XVIII-XVlil is connected with its first end between the right trigger relay KA 11 and the second left auxiliary opening contact KA 7-3 at the third power branch Xlil-Xliland with its second end between the right adjusting contact of the adjusting magnet Y2 and the right auxiliary closing contact KA 8-3 at the sixth power branch XVI-XVI.

The seventh power branch XVII-XVII is formed by series connected forward control magnet Y3 and second right trigger closing contact KA 11-2 of the right trigger relay KA 11 from the third power branch XIII-XIII, while this right trigger closing contact KA 11-2 is parallel by-passed by fourth auxiliary power branch 4-4 consisting of second left trigger opening contact KA 10-2 of the left trigger relay KA 10 from the first power branch XI-XI.From the first to the seventh power branch are all branches supplied by voltage branch connected at one contact place of the switch-over contact SK 4 and from its second contact place is supplied the eighth power branch XIX-XIX, consisting of series connected reverse control magnet Y4, right trigger opening contact KA 11-3 of the right trigger relay KA 11 from the third power branch XIII-XIII and the left trigger closing contact KA 10-3 of the left trigger relay KA 10 from the first powerXI-X/.

The function of the electric circuit for control of the machine for lasting shoe toes by gluing according the invention will become more fully understood from the detailed description given herein below. By inserting the lasting margin shoe upper into the toe photoelectric sensing unit SO 1 the luminous flux between the light source and the phototransistor is interrupted and the toe amplifier AZ 1 energises the toe relay KA 1 in the first control branch 14. Operation of the toe relay KA 1 causes its first toe closing contact KA 1-1, in the fourth control branch IV4V, to momentarily energise the toe auxiliary relay KA 4 via the first capacitor C 1.

Afterthe charging of the first capacitor C 1 the toe auxiliary relay KA 4 de-energises again. The toe auxiliary closing contact KA 4-1 (of the toe auxiliary relay KA 4) in the first auxiliary power branch 1-1 closes in the first power branch Xl-XI the feeding for the left trigger relay KA 10 and this left trigger relay KA 10 makes with its second left trigger opening contact KA 10-2 in the fourth auxiliary power branch 4-4 voltage in the seventh power branch XVII-XVllforthe forward control magnet Y3 using for the forward drive of the camshaft. At the same time the left trigger relay KA 10 is connected with its first left trigger closing contact KA 10-1 in the third auxiliary power branch 3-3 over second power branch Xll-Xllto the supply voltage.The cams are turned in such position, when the drawing pliers are closed. At the same time the toe limit switch SK 1 is opened with a cam and so the feed for the left trigger relay KA 10 is interrupted over second power branch XII-XII and third auxiliary power branch 3-3. The left trigger relay KA 10 interrupts the feed in the fourth auxiliary power branch 4-4 for the forward control magnet Y3 and the camshaft stops. The toe relay KA 1 in the first control branch l-l stays in closed condition and thus also its second toe closing contact KA 1-2 in the fifth control branch V-V.

When the lasting margin on the shoe upper is inserted into the left photoelectric sensing unit S02, the luminous flux between the light source and the phototransistor is interrupted and the left amplifierAZ2 energises the left side relay KA 2 in the second control branch 1141. The left side relay KA 2 with its second side closing contact KA 2-2 in the seventh control branch VII- VII connects by its closing the voltage over first right auxiliary opening contact KA 8-1 of the right auxiliary relay KA 8 in the eighth control branch VIII- VIII with the left auxiliary relay KA 7. The first left auxiliary opening contact KA 7-1 or the left auxiliary relay KA 7 in the seventh control branch VII- VII is opened and so the right auxiliary relay KA 8 remains released in the eighth control branch VIII- VIII. The left auxiliary closing contact KA 7-2 of the left auxiliary relay KA 7 in the seventh control branch VII-VIIis closed and so applies the voltage in the fifth power branch XV-XVfor the left adjusting magnet Y 1 over the toe auxiliary opening contact KA 4-2 and side auxiliary opening contact KA 5-3 in the fourth power branch XIV-XIV. The left adjusting magnet Y 1 adjusts the working machine system for the work with the left shoe by the distributor.The first left side closing contact KA 2-1 of the left side relay KA 2 in the second control branch ll-llstays in the fifth control branch V-V closed.

When the lasting margin of the shoe upper is inserted into-the right photoelectric sensing unit SO the luminous flux between the light source and the phototransistor is interrupted and the right amplifierAZ3 connects the right side relay KA 3 in the third control branch III4II.The first right side closing contact KA 3-1 of the right side relay KA 3 in the third control branch llI-llI connects in the fifth control branch V-V over the closed second toe closing contact KA 1-2 and first left side closing contact KA 2-1 the supply voltage to the side auxiliary relay KA 5. Side auxiliary relay KA 5 is closed by charging current of the second capacitor C2.

When the charging of the second apcitor C2 is finished, the side auxiliary relay KA 5 is opened, the second side auxiliary closing contact KA 5-2 in the first power branch XI-XI closes the supply voltage for the left trigger relay KA 10, which leads over its second left trigger opening contact KA 10-2 in the seventh power branch XVII-XVllthe voltage for the forward control magnet Y3 of the distributor for the forward drive of the camshaft.At the same time the left trigger relay KA 10 with its first left trigger closing contact KA 10-1 in the third auxiliary power branch 3-3 is connected with the supply voltage and the camshaft turns in such position, in which the side drawing pliers are closed and the next cam opens the side limit switch SK2, and so is the feeding of the second power branch XII-XII and the third auxiliary power branch 3-3 interrupted, and in the same way is also interrupted the supply voltage for the forward control magnet Y3 and the cam shaft stops to turn.The first side auxiliary closing contact KA 5-1 of the side auxiliary relay KA 5 leads the voltage in the sixth control branch VI- VI over the closed cam opening contact KA 9-1 to the time auxiliary relay KA 6 and it will be connected with its time auxiliary closing contact KA 6-1 in the second auxiliary control branch 02-02 to the supply voltage. The time auxiliary relay KA 6 connects with its time auxiliary switch-over contact KA 6-2 in the ninth control branch IX4Xthe delayed relay KT 1 to the supply voltage and so it will become the delayed operation. When the time for adjusting of the delayed relay KT 1 is over, this relay closes with its delayed closing contact KT 1-1 in the tenth control branch X-Xthe feeding for the cam relay KA 9.The cam relay KA 9 leads the supply voltage over its first cam closing contact KA 9-2 in the second auxiliary power branch 2-2 and over the second right auxiliary opening contact KA 8-2 to the left trigger relay KA 10 in the first power branch XI-XI. At the same time this left trigger relay KA 10 is connected with its first left trigger closing contact KA 10-1 in the third auxiliary power branch 3-3 over the second power branch Xll-Xllto the supply voltage. The left trigger relay KA 10 causes with its second left trigger opening contact KA 10-2 in the fourth auxiliary power branch 4-4 the voltage for the forward control magnet Y3 in the seventh power branch XVIII-XVlilforthe forward drive of the cams.The cams are turned in such position, in which the shoe upper is lasted on the last by the movement of the lasting jack upstairs. At the same time the tree limit switch SK3 is opened by another cam. In this way the feeding in the second power branch Xll-Xlland in the third auxiliary power branch 3-3 for the left trigger relay KA 10 is interrupted and so the feeding for the forward control magnet Y3 is interrupted too and the camshaft stops to rotate.

The working cycle goes on by contemporary pushing of the left starting push button SB 1 and the right starting push button SB2 in the fifth auxiliary power branch 5-Sand in the sixth auxiliary power branch 6-6.

In this way the supply voltage is leaded over toe auxiliary opening contact KA 4-2 and the side auxiliary opening contact KA 5-3 in the fourth power branch XIV-XIV and the left auxiliary closing contact KA 7-2 in the fifth power branch XV-XVand the first safety closing contact KA 12-1 in the fifth auxiliary power branch 5-5 to the left trigger relay KA 10 in the first power branch Xl-XI. During the rotation of the camshaft there are provided all other operations of the machine.When the working cycle is finished, the supply voltage is leaded by the switch-over of the switch-over contact SK 4 to the eight power branch XIX-XIX and over the closed left trigger opening contact KA 10-3 and the right trigger opening contact KA 11-3 to the reverse control magnet Y4, and the camshaft is turned back in the starting position.

When the right shoe is lasted, the function of the electric circuit according the invention by inserting of the lasting margin in the toe photoelectric sensing unit SO 1 is the same like the lasting of the left shoe. The order of inserting the lasting margin by the lasting of the right shoe is opposite like by the left one. The lasting margin is inserted at first into the right photoelectric sensing unit SQ 3 and later also into the left photoelectric sensing unit So 2. The function of the electric circuit is similar like during the lasting of the left shoe with the only difference, which means, that instead of left trigger relay KA 10 the right trigger relay KA 71 is used, instead of the left auxiliary relay KA 7the right auxiliary relay KA 8 is used and instead of the left adjusting magnet Y 1 the right adjusting magnet Y2 is used and so there are the proper distributors and also the working units adjusted for the operation with the right shoe.

Claims (2)

1. Electric circuit for control of a machine for lasting shoe toes by gluing, consisting of a control circuit and power circuit, characterized in that the control circuit is formed by eleven parallel connected control branches, while the first control branch /I-I/ is formed by series connected toe relay /KA 1/, toe ampfilier /AZ 1/ and toe photoelectric sensing unit/SQ 1/, the second control branch /II-II/ is formed by series connected left side relay /KA 21, left ampfilier /AZ 2/and left photoelectric sensing unit /SQ 2/, the third control branch /III-III/ is formed by series connected right side relay /KA 3/, right ampfilier /AZ 3/and right photoelectric sensing unit /SQ 3/, the fourth control branch /IV-IV/ is formed by series connected toe auxiliary relay /KA 4/, first capacitor /C 1/and first toe closing contact /KA 1-1/of the toe relay /KA 1/, the fifth control branch N-VI is formed by series connected side auxiliary relay /KA 5/, second capacitor /C 21, first right side closing contact /KA 3-1/of the right side relay /KA 3/, first left side closing contact /KA 2-1/of the left side relay /KA 2/and second toe closing contact /KA 1-2/of the toe relay /KA 1/, the sixth control branch Nl-VI/ is formed by series connected time auxiliary relay /KA 6/, cam opening contact /KA 9-1/of the cam relay /KA 9/ and first side auxiliary closing contact/KA 5-1/of the side auxiliary relay/KA 5/, while the first side auxiliary closing contact /KA 5-1/is parallel by-passed by second auxiliary control branch /02-02/, which consists of time auxiliary closing contact /KA 6-1/of the time auxiliary relay /KA 6/, the seventh control branch Nll-Vll/ is formed by series connected left auxiliary relay /KA 7/, second left side closing contact /KA 2-2/of the left side relay /KA 2/ and first right auxiliary opening contact /KA 8-1/of the right auxiliary relay /KA 3/, the eighth control branch NIII-VIII/ is formed by series connected right auxiliary relay /KA 8/, second right side closing contact /KA 3-2/ of the right side relay /KA 3/and first left auxiliary opening contact /KA 7-1/ of the left auxiliary relay /KA 7/, the ninth control branch /lX-lX/ is formed by series connected delayed relay /KT 1/and time auxiliary switch-over contact /KA 6-2/of the time auxiliary relay /KA 6/, the tenth control branch /X-XI is formed by series connected cam relay /KA 9/and delayed closing contact /KT 1-1/of the delayed relay /KT 1/, the eleventh control branch /XVlll-XVlll/ is formed by series connected safety relay /KA 12/, parallel by-passed by first auxiliary control branch/Ol -01/, which consists of third capacitor /C 3/, third right trigger contact /SB 2-31 of the right starting push button /SB 2/ and third left trigger contact /SB 1-3/of the left starting push button /SB 1/, and the power circuit is formed by parallel connected power branches, where the first power branch /XI-XI/ is formed by series connected left trigger relay /KA 10/ and second side auxiliary closing contact /KA 5-2/of the side auxiliary relay /KA 5/while this second side auxiliary closing contact /KA 5-2/is parallel by-passed both by first auxiliary branch /1-1/, consisting of the auxiliary closing contact /KA 4-1/of the toe auxiliary relay /KA 4/ and also by second auxiliary power branch 12-21 consisting of series connected second right auxiliary closing contact /KA 8-2/of the right auxiliary relay /KA 8/and first cam closing contact /KA 9-2/ of the cam relay /KA 9/, the th ird power branch /XI I I-XIII/ is formed by series connected right trigger relay /KA 11/, second left auxiliary opening contact /KA 7-3/of the left auxiliary relay /KA 7/ and by second cam closing contact /KA 9-3/of the cam relay /KA 9/, while between the left trigger relay /KA 10/and the second side auxiliary closing contact /KA 5-2/is the third auxiliary power branch /3-3/with its first end connected with the first power branch /XI-XI/ and its second end connected between the right trigger relay /KA 11/and the second left auxiliary opening contact /KA 7-3/with the third power branch /XIII-XIII/ and this third auxiliary power branch /3-3/is formed by series connected first left trigger closing contact /KA 10-1/of the left trigger relay /KA 10/ and by first right trigger closing contact /KA 11-1/ of the right trigger relay /KA 11/and between these two contacts is connected the second power branch /XII-XII/ to the third auxiliary power branch /3-3/, and the second power branch /XII-XII/ consists of series connected tree limit switch /SK 3/, side limit switch /SK 2/and toe limit switch /SK 1/, the fourth power branch /XIV-XIV/, formed by series connected toe auxiliary opening contact /KA 4-2/and side auxiliary opening contact /KA 5-3/, is connected between the left auxiliary closing contact /KA 7-2/, which forms in the series circuit the fifth power branch /XV-XV/ with the left adjusting, magnet/Y 1/, and the right auxiliary closing contact/KA 8-3/, which forms in the series circuit the sixth power branch /XVl-XVl/with the right adjusting magnet /Y 2/, the fifth auxiliary power branch /5-5/, formed by series connected first right trigger contact/SB 2-1/of the right starting push button /SB 2/, first left trigger contact /SB 1-1/of the left starting push button/SB 1/and first safety closing contact /KA 12-1/of the safety relay /KA 12/, is connected with its first end between the left trigger relay /KA 10/and the second side auxiliary closing contact /KA 5-2/at the first power branch /Xl-Xl/ and with its second end between left adjusting magnet lY 1/and left auxiliary closing contact /KA 7-2/at the fifth power branch /XV-XV/, the sixth power auxiliary branch 16-6/, formed by series connected second right trigger contact /SB 2-2/of the right starting push button /SB 2/, by the second left trigger contact /SB 1-1/of the left starting push button /SB 1/ and the second safety closing contact /KA 12-2/of the safety relay /KA 12/, is connected with its first end between the right trigger relay /KA 11/and the second left auxiliary opening contact/KA 7-3/at the third power branch /XIII-XIII/ and with its second end between the right adjusting contact of the adjusting magnet ly 2/ and the right auxiliary closing contact /KA 8-31 at the sixth power branch /XVI-XVI/, the seventh power branch /XVll-XVll is formed by series connected forward control magnet /Y 3/and second right trigger closing contact /KA 11-2/ of the right trigger realy /KA 11/, while this right trigger closing contact /KA 11-2/is parallel by-passed by fourth auxiliary power branch 14-41 consisting of second left trigger opening contact /KA 10-2/of the left trigger relay /KA 10/, while from the first to the seventh power branch are all connected at one contact place of the switch-over contact /SK 4/ and at its second contact place there is connected the eight power branch /XIX-XIX/, consisting of series connected reverse control magnet /Y 4/, right trigger opening contact /KA 11-3/ of the right trigger relay/KA 11/and the left trigger closing contact/KA 10-3/ of the left trigger relay /KA 10/.

2. Electric circuit for control of a machine for lasting shoe toes by gluing, consisting of a control circuit and power circuit, wherein the control circuit is formed by several prallel connected control branches, with a relay in each control branch, and the power circuit is formed by several parallel connected power branches.

List of reference numbers I-I - X-X, control branch XVIII-XVIII control branch Xl-Xl XVII-XVII power branch XIX-XIX power branch 01-01 auxiliary control branch 02-02 auxiliary control branch 1-1 - 6-6 auxiliary power branch KA 1 toe relay KA 2 left side relay KA 3 right side relay KA4 toe auxiliary relay KA 5 side auxiliary relay KA 6 time auxiliary relay KA 7 left auxiliary relay KA8 right auxiliary relay KA9 cam relay KA 10 left trigger relay KA 11 right trigger relay KA12 safety relay KT 1 delayed relay KA 1-1 toe closing contact KA 1-2 toe closing contact KA 2-1 left side closing contact KA 2-2 left side closing contact KA3-1 right side closing contact KA 3-2 right side closing contact KA 4-1 toe auxiliary closing contact KA 4-2 toe auxiliary opening contact KA 5-1 side auxiliary closing contact KA 5-2 side auxiliary closing contact KA 5-3 side auxiliary opening contact KA 6-1 time auxiliary closing contact KA 6-2 time auxiliary switch-over contact KA 7-1 left auxiliary opening contact KA 7-2 left auxiliary closing contact KA 7-3 left auxiliary opening contact KA 8-1 right auxiliary opening contact KA 8-2 right auxiliary closing contact KA 8-3 right auxiliary closing contact KA 9-1 cam opening contact KA9-2 cam closing contact KA9-3 cam closing contact KA10-1 left trigger closing contact KAlO-2 left trigger opening contact KA 10-3 left trigger closing contact KA 11-1 right trigger closing contact KA 11-2 right trigger closing contact KA 11-3 right trigger opening contact KA 12-1 safety closing contact KA 12-2 safety closing contact Y1 left adjusting magnet Y2 right adjusting magnet Y3 forward control magnet Y4 reverse control magnet SB 1 left starting push button SB 1-1 left trigger contact SB 1-2 left trigger contact SB 1-3 left trigger contact SB 2 right starting push button SB 2-1 righttriggercontact SB 2-2 right trigger contact SB 2-3 right trigger contact SK 1 toe limit switch SK2 side limit switch SK3 tree limit switch SK4 switch-over contact SQ 1 toe photoelectric sensing unit SQ 2 left photoelectric sensing unit SQ 3 right photoelectric sensing unit AZ 1 toe ampfilier AZ 2 left ampfilier AZ 3 right ampfilier C 1 capacitor C2 capacitor C3 capacitor KT 1-1 delayed closing contact