DE1532262A1 - Device for controlling a machine as a function of a characteristic of the manufactured product - Google Patents

Description

DIPL.-ING. HANS MEISSNER 28 BREMEN. June 24, 1966

DIPL.-ING. ERICH BOLTE 'Äf-San 5017

PATENT LAWYERS

Applicant »

Establishment public dit: SERVICE D ¹ EXPLOITAOiION INDUSTRIAL DES TABACS ET DES ALLUMETTES

(- 53 quai d »0rsay, PARIS - Prance

Device jbut regulation of a machine as Function of a characteristic of the manufactured product

Priority is claimed based on patent application France PV 22 546 rom June 28, 1965

The present invention relates to a device with me Control of a manufacturing machine using information provided by a display device about changes in a given characteristic of the manufactured Product

The feature or characteristic in question * » can be the weight, the volume, the density or the like

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button to detect or display the appropriate is to apply such an impulse to an organ of the machine that the operating conditions of this organ change will. This sensor may still be suitable or able, according to the value of the in question standing feature between two contacts to swing or to oscillate on the one and the other side are arranged in such a way that the distance which lies between them defines a neutral zone or defined, in the area of which the changes or deviations are permissible. Beyond this In the neutral zone, the deviations that are too far from a mean justify influencing the operation the machine. It is known in one direction or the other according to the direction of the pulses to drive or excite a reversing motor, which intervenes on the functional mechanism of the machine controls more or less.

Such devices are particularly useful in the cigarette manufacturing industry or known in the industry for making other similar products. These devices are used to control a stream of tobacco through which a continuous roll or a continuous

A band is to be formed, whereby the change in level ' of the current or the river, which exceed the permitted limits, a change in Ge * cause the speed of the machine or one of its organs. Suitable mechanical systems make it possible to

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like devices provided to reduce the width or the amplitude of the correction.

However, it can be advantageous or preferable leg, for the operation of the machine not every time it is exceeded to allow the necessary corrections to be made to the limit or threshold, and these corrections only to provide for the case where the excessive changes or deviations in one direction during persist for a longer or sufficient period of time.

The present invention relates to a device for regulating a machine, starting from information that is supported by a display or over- * monitoring device, which is able, through its contact with two pointer stops, which after the one and the other side are arranged at an adjustable distance to produce pulses, the Device characterized +, is that it has devices, in order to calculate the algebraic sum of the exceedance time in one direction or the other at any moment neutral zone of an operating symbol of a machine to indicate devices in order to; each of the exceedances by the display the algebraic sum of the tolerance limit,

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services to signal the direction of each exceedance, and has devices to automatically track the machine causing such an excess under certain circumstances to stop for a certain time in order to be able to remedy the cause of the error

The means of displaying the algebraic sum of the time of an overrun one by one Direction of a neutral zone of an operating code of a machine can be based on the fact that in the direction of Deviation during the time when the limit has been exceeded, marked disc rotated is left, which moves in front of a fixed marking, which is connected to a brake gear motor is that in one direction or another corresponding to the direction of crossing the limit in Movement is set for the duration of this excess,

The means for signaling each of the excesses of the tolerance threshold by this sum consist of two Cam disks, each of which has a signal-actuating roller or roller of a microcontactor cooperates, with the curved disc on the output axis of a brake gear motor are keyed, which in one direction or the other according to the direction the impulses are in motion for the duration

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is set, and each cam is provided with a notch or a wart, which are symmetrical to each other are arranged to display the limit violation, when part of the set rotation is carried out and then return to the zero position by moving backwards to effect the order

The arrangement to indicate the direction of each exceedance consists of three cams, one of which is Jaät interacts with a roller or roller of a microswitch that actuates a signal, the cam disks are attached or keyed on the output axis of a brake motor, which is in the set in motion one or the other direction according to the direction of the pulses during the duration of the same is, and each cam disk is provided with a detent or a lug that is on the two indicator disks symmetrically, relative to the position of the third, are arranged to indicate the direction of the limit crossing according to the claimed contact role and then the backward movement of the overall arrangement in the To bring about zero position, in accordance with the position of the notch or lug of the third cam, based on their role

The means to stop the machine causing such an overshoot after a certain time, to the

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Eliminating errors consists in forwarding the display or signal pulse to the stopping element of the machine, namely via a timer or a delay, its triggering or switching off can be canceled or made invalid

The means of checking the operating mode of the machine with regard to exceeding limits or exceeding thresholds to change, can consist in each exceeding according to one of the signal or Indicator disks evoked pulse for a certain period of time and in the required Direction to change the speed of the corresponding machine organ.

B _e i a machine for producing cigarettes or other analog products acts each exceeded the speed of the feeder of the machine ·

The device according to the invention can in particular for Control of the level or the height of the tab alt s are used, which is based on the Arfangsfluss respectively the initial amount is spread apart, of which only a part in a machine to the continuous Cigarette making is supposed to form the tobacco roll.

It is known that the adjustment of the leveling device,

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which is intended to remove the superfluous part of the river is the production regularity of a clothing machine influenced considerably, especially if the leveled or smoothed / ^ crSte / flow is not is sufficient to reduce the effectiveness of the leveling device. The. developed device alarms the Operator and possibly stops production when the V / ert of the degree of smoothing or leveling moves away from the specified tolerance zone, or acts directly on the speed of the feed device the manchnie a.

In the example described below, the Information supplied by the level indicator or level monitor, which is formed by an arm which rests on the tobacco layer that is moved on the conveyor. Experience has shown that the

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Thickness of this light, measured according to those defined below Conditions, in a sufficient way, the mean value of the weight of the leveled or transported Tobacco represents.

If the displayed or recorded level varies by a minimum adjustable or adjustable variable, determined by the corresponding degree of equalization is, the arm actuates micro-contactors, which is an information integrator or control or drive an information measuring device. These micro-shooters

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thus define the boundaries of a neutral zone, within the degree of compensation can be regarded as "normal" ·

When the integral value reaches a certain limit or threshold, the integrator controls the following Operations!

- it switches the orange flashing symbol of a signal cycle and the indicator "too little (or too much) leveled · Or flattened "a scoreboard;

- it activates the time relay, which stops the machine and lights up the red flashing light controls the cycle if the operator does not correct the signaled error quickly enough;

- the speed of the feeder is corrected

A device according to the invention is described below by way of example with reference to the enclosed Drawings described in more detail. Show it

Pig. 1 a curve showing the level changes on the conveyor or conveyor belt that which has shrunk by equalizing or compensating ' Tobacco represents,

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Pig. 2 a graphic representation showing the impulses of exceeding the level, one side or the other of the neutral zone, integrated as Function of time,

3 shows a diagram of the display or monitoring device,

Fig. 4 The circuit diagram, which is shown at 9, 10, 11 and 12 contains the reversible motor and integrator cam, which also is provided in Figure 3 with the reference numeral 3, while

5 shows a schematic diagram of the control or the actuation for correcting the. The speed of the feeder

According to FIG. 3, the light metal arm 4 is mounted freely pivotable about the axis 5. The one firmly attached to this arm The handle 6 is provided with two micrometer screws 7 at its ends, which attach to the two micro-contactors 8 can act

If the level or the height of the leveled or scanned tobacco changes, it swings the arm 4 around the axis 5, whereby the lever 6 is taken along or moved along with it. When the amplitude

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the movement is large enough, one of the screws 7 comes on the lever of the corresponding micro-contactor to the system, whereby the closing of the contacts of the latter is caused "

The setting of the micrometer screws 7 determines the response threshold » or the control threshold of the micro-contactors and thus the position and width of the neutral zone

The curve shown in fig · 1 gives as a function of the Time the level changes sensed by the arm again. It is assumed that at the starting time the The information integrator or the summator is set to zero * each time you go beyond the level or the set level sends the corresponding microcontactor a pulse to the integrator, whose Duration is the same as the time during which the level has been exceeded. These pulses, integrated as a function of time E, are shown in FIG. In point 3 the integral curve reaches the maximum permitted limit, and the counter or the delay 30 becomes put into operation »

The machine can be switched off at u if the error is not corrected in the time interval tu.

In a part of FIG. 4 the pulse integrator, which is provided with the reference number 3 in FIG. 3, is shown.

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On the output axis of the brake gear motor 9 / moto-reducteur frein / three cams 10, 11 and 12 are fixed or keyed, each provided with a notch or Haste, and are intended to control the 3 three micro-contactors 13 »14 and 15 respectively to actuate·

The remaining part of Fig. 4 gives the circuit diagram of the electrical Circuits or circuits again, the switch 16 is from the tobacco roll meter respectively indicator controlled and closed when cigarettes are being made in the machine

With a contact 17 is referred to, which is usually over a pushbutton for repairing the damage »is closed.

18 and 19 are onlookers who are shown when the Light up levels (18 for the lower level - 19 for the upper level)

The reference symbols 20 and 21 correspond to the reference symbols "too little and too much leveled or flattened" the blackboard

The orange indicator or flashing symbol of the signal cycle is denoted by 22

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A thermal relay with adjustable delay, which controls the standstill or stopping of the machine, is denoted by 30.

According to Pig's schematic. 5 sets the delay (or timer) controlled by integrator 3 31 during the time determined by its setting and in the appropriate direction a gear motor 32 in Gear, which via an electromagnetic clutch 33 the setting of a change gear 34 of the task organs Can change or modify the production machine.

The insertion of the clutch 33 between the geared motor and the change gear 34 allows the part 34 to be used as well can be set manually using the handwheel 35 ».

The mode of operation of the new device is as follows »

When the integrator is at zero, the role of the microcontactor 15 is in the notch of the corresponding cam.

The other two cams are keyed or fastened in such a way that, when the motor is set in continuous operation, the time necessary for one of the microcontactors 13 or 14 to be actuated or controlled is the time of the maximum 209813 / 0212

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Exceeding in the considered direction corresponds.

When the device is in operation, the motor rotates in one direction or the other depending on whether the received pulses come from the microcontactor, which a "too much" or a "too little" of the equalization indicates, if then the impulses of the indicator "too much" positive and the other counts negative, for example, the angular position of the starting axis of the hotos represents the value of the algebraic sum of the exceedance time, that is, the integral with respect to the time of the puncture, the which represents impulses.

When the set limit for the maximum value of the algebraic sum is reached, the angular movement is of the cams in such a way that a microcontactor 13 or H is actuated, whereby

- the switching on of the timer or delay and the lighting of the signal system and

- the backward movement of the gear motor 9, until the integrator is again at zero, causes wirii

The integrator is set by changing the fastening or wedging of the cam disks 11 or 12 on the motor axis, reducing the value of the limits is defined or determined from which the

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actions mentioned above can be controlled.

Assuming that the machine works with a normal degree of equalization or equalization and that the integrator is at zero, then the contacts are in the position shown in the diagram a set limit increases, then the switch closes 8a, thereby energizing de 'relay 23 causes the closing or shutting off entails t

- the opening of the circuit of the coil of the heater 24 (This security makes it possible to avoid that as a result of meat operations or operations the two windings 9a and 9b of the motor are fed simultaneously);

- energizing the winding 9a of! photo 9 through the normally closed contacts of relays 25, 26 and 29 · The motor then rotates in the direction of arrow F;

- the lightening of the Sohauzeichen 19, which means "too much" of the momentary equalizing or derailing indicates.

When the level of tobacco spread by equalizing or equalizing becomes normal, Open sioh 8a, the motor 9 and the indicator 19 are not

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fed on, and all contacts are again in the position shown in the figure, with the exception of the lükroschütz 15 »its hell outside the notch of the cam 10 is held.

If at this moment the amount of leveled tobacco is insufficient, 8b opens and the now fed heater 24 lights up the indicator 18 and sets the motor 9 ^{in motion in the opposite direction of the arrow i 1} by energizing the winding 9b.

If after a certain response or working time the role of the Mkroschütz 13 (or H) in the notch of Cam 12 (or 11) falls, its contact closes and causes the excitation of relay 26 (or 25), which you through the circle of the microcontroller 15 yourself feeds.

Assuming, for example, that it is too sizeable in the middle Equalization off, dannι

the microcontactor 14 closes the power supply circuit of the relay 25 »which thereby controls or actuates:

- the opening of the circuit of the winding 9a of the motor,

- The undervoltage of the winding 9b χ the motor then rotates against the direction of the arrow P and leads return the integrator to its original position,

- the supply of the relay 27 »which is via the circuit of the contact or button 17 itself feeds

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and that in turn controls:

- the light of indicator 21 on the display board "

- the lighting up of the orange indicator 22 of the Circulatory system,

- the heating of the thermal relay 30, which stops " The electrical circuit from the machine opens if the operator does not correct the displayed error quickly enough

When the role of the micro-contactor 15 is back in the detent of the If the cam disc falls back, the relay 25 opens, the motor 9 stops and the relay 29 that is fed is interrupted every possibility of a new activity of the integrator

When the operator takes action to eliminate the error shown, he presses the button or * assign the release button 17, whereby the relay 27 comes to rest and the supply or supply of relay 29 interrupts The arrangement is then returned to its initial state

In the case of FIG. 4, the adjustable timer 31 switches gear motor 32 on during the time it has been set.

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Claims (1)

^ 3? _f (Specimen copy ! D> rf \ v ~ Jeft. .qeandertS ^ den Expectations / 1.) Device for controlling a machine with continuously KJ
Licher manufacture or production, for example a cigarette manufacturing machine, the device containing a control device which immediately emits a signal when a feature or a U characteristic value of the manufactured product has a permissible tolerance range in one or the other direction, characterized in that they have devices (10,11,12) for algebraic dumming of the time intervals during which the tolerances are exceeded, the intervals being counted in the positive or negative direction, depending on the Direction in which the tolerances are exceeded and sensors / capteurs / or response elements (15,14,13) which are actuated by the summing unit when a certain period or a period limit of the tolerance exceeded is exceeded, with suitable actuation by the sensors - or control elements on the machine can be operated 2 · Device according to claim 1, characterized in that each algebraic summing unit is at least one with a uniform Movement driven element (10,11 or 12) which carries a mark with a corresponding sensor (15, 14 or 13) or a fixed response element interacts. 20 9813/0212 originally inspected 3 «device according to claim 2, characterized! that the driven elements are rotating elements 4 · Device according to claim 2, characterized in that » the rotating elements are detent disks, in the detent of which an element carried by a swivel arm can be locked « 5. Apparatus according to claim 2, characterized in that the rotating elements are formed by several coaxial disks. 6. Device according to claim 2, 3 or 4, characterized in that there.' it has an electric motor (9) with reversible direction of rotation and immediate braking, which for this purpose is intended to drive the one or more coaxial disks 7. Apparatus according to claim 6, characterized in that that the brake motor is your gearbox with a variable gear ratio assigned· For logging in Bremen, June 24th, 1966 Register Establishment public diti SERVICE D »EXPLOITATION INDUSTRIAL DES TABACS ET DES ALLUMExTES 53 quai d'Orsay, PARIS - France 209813/0212 Priority is claimed due to
Patent application France. EV. 2.2 546
dated June 28, 19fc ^ Blank page