DE2127953A1 - Yarn measuring device - Google Patents

Description

Vernon H. Cooper Limited, 150/164 Gregory Boulevard,

Nottingham, England

Garn-hesseinrichtune

The invention relates to a gam kettle haschines with a plurality of yarns, such as round, straight, flat and warp knitting machines, Spinning machines, weaving machines and yarn knitting machines, in short, all machines, which of a majority be traversed by threads or yarns.

Several proposals have been made for measuring the speed of running yarn in a knitting machine, to check the quality of the product, whereby all of these suggestions make use of a rotating measuring device, which by contact

100 * 94/1631

COPY BAD ORIGINAL

B127 ^ 53

- 2 - -

is driven with the yarn. One such embodiment is a portable speedometer with a narrow roller and a speed indicator for "supply per hinute", being provided is that the device from thread guide (or punch needle) to thread guide in an itundstrickinmaschine with several stations with, for example, 4-8 to 16 thread guides. The Device manually applied to the twine, which turns the reel, whereby the anseiger by electrical Impulses progresses. In addition to the undesirable expenditure of time to check each one one after the other With the thread guide, the application and removal of the device can collide with the normal course of the thread. from which bad products and pressure marks on the products result. In addition, inaccurate results are obtained with the setup, since the haschine can run at different speeds while the individual thread guides are queried. Another embodiment consists in a rotatable measuring device in the form of a converter for electromagnetic pulses, which acts on a counter, and a third embodiment consists in that a roller driven by the yarn generates an optical, magnetic or electrical alternating field and a generated alternating voltage causes different output values for different game speeds. Every the last two devices can only be used for special yarns.

It is therefore the concern of the invention to provide a Gtrn measuring

100684/1631

COPY
BATH ORIGINAL

• ft

'- 2427953

device to create which checking a plurality relieved by yarn.

Accordingly, the invention provides a measuring device for a A plurality of yarns within a machine processing such yarns with a plurality of revolving Irapuls measuring devices, which are equipped with the appropriate

the yarns are in driving contact, with a speedometer suitable for pulse operation to display the yarn speed and / or a counter display device, also for pulse operation, to display the yarn length, a selector switch with a plurality of control contacts being provided which are correspondingly connected to rotating Pulse measuring devices and are all connected to the speedometer and / or the counting device. The machine preferably also has an adjustable clock pulse counter which is arranged so that it can be actuated by a ram or driver which is supported by a part of the machine rotating synchronously with the production cycle, so that the counter can be suitably arranged to display the yarn length during the course of a number of cycles for which the clock pulse counter is set, and then stop when the clock pulse counter has counted its preset number. The speedometer and the counting device can be separated from one another or combined in a display device. The selector switch can be a manually operated rotary switch or a series of pressure switches or a

108884/163 3 copy

- - ^{; ::} bad original

be electronic switch. The pulse counter may include a presettable display device and a show second display device, which is operated depending on the speed of the machine, wherein the! clock by visually comparing the two counters is obtained. Alternatively, the clock can be achieved by an automatic stop counter which has a has automatic stop switch, which is connected to the counting P Display device is connected to the latter by a count completion signal from the automatic Stop counter.

The invention also provides a yarn measuring device in a machine which works with such yarns, with electromagnetic measuring devices which are in driving contact with the yarn and are connected to a counter which is characterized in that. that it comprises a plurality of electromagnetic, revolving pulse measuring devices, which are each in driving contact with a plurality of yarns on such a plurality of yarn processing machine that a speedometer and / or a counting device is provided, which in pulse mode corresponding to the Yarn speed and . "'· / Or its length determine that a selector switch with a plurality of contact points, each of which is connected to the corresponding pulse measuring devices and all to the speedometer and / or the counting display device, and that a clock pulse counting device with a Release mechanism forward

10988A / 1633

• -5-

are seen with the counting display device is connected and the latter stops after a predetermined number of expired passes.

The foregoing and other features of the invention, in particular according to the claims v / ground on the basis of special embodiments with reference to the enclosed Drawing explained.

In the drawing shows:

Λ an overall view of a circular knitting machine provided with several stations with yarn measuring devices according to the invention,

Fig. 2 is a partial view of a rotating impulse chain device, which is provided for each thread,

3 shows a partial view of a speedometer in combination with a counting display device of the yarn measuring devices,

Fig. 4 is a block diagram of an electrical circuit of the yarn meter and

3 shows a part of the electrical circuit in greater detail,

1098 * / 1633

The embodiments are described using a circular knitting machine 1 with several stations (FIG. 1) however, the invention is equally applicable to other embodiments suitable, such as those referred to above where it is necessary to the speeds and / or lengths of a number to measure running yarns. «

^ Such a circular knitting machine with several stations can be between 44 to 60 or more thread guides 2 exhibit. ■

In the same number as the number of thread guides 2, small little baths 3 are provided, each of which is above of the places of the associated thread guides are arranged so that they continuously with your, corresponding running thread Y can be in contact.

Each roller 3 is designed in any suitable manner to form a rotating impulse die-cutting device 4.

In the example according to FIG. 2, the device 4 has the reel 3 and an alternating coil 5 on an insulated arm; The roller 3 is attached to the arm 6 by means of ball bearings on a, Acnsstummel 7 and in their permanent magnets 8 and 9 are provided which Kgs be arranged in parallel or radially on opposite sides of Acnsstusamels 7 or ring-shaped NEN. The interchangeable coil 5 is glued to a frame part 6a of the arm 6 near the roller 2. Are on the arm

109834/1633

* - ν - ■

also thread-guiding eyelets 10, 11 on one side of the Eoll-e-2 · έ · η 'an upper and a lower point, for example Exwa at the height of the circumference of the roll, attached. . . "

The device 4 in this example can by means of the from the arm 6 angled frame part 6a and a lower flange 6b by adjustable screws 6c a part of the machine, for example a rail 12 according to FIG. 1 or a storage box 13 according to FIG. 2, which is already provided on the rail 12 is and which upper and lower thread guide eyelets 15, 16 on one side untahalb the eyelets 10 and having. The thread extends from a feed device through the eyelet 10, revolves around the roller 2, continues through the eyelet 11 and through the eyelets 15, 16 to thread guide 2.

The facilities 4- are in a yet to be described Way to a selector switch, which in this example a at a suitable point of the. Machine mounted multi-pole switch 17 (Fig. 1) is connected.

In the present example, the switch 17 is connected in a manner also to be described below to a combined yarn speed and length indicator 18 which is attached to a suitable rope of the machine. In the example shown, this indicator is arranged essentially at eye level in the vicinity of the middle of the machine and on one

109914/1639

-S-

Trunnions 18a attached. This allows the scoreboard can be seen by the operator at various points around the machine.

The indicator 16 of FIG. 3 comprises a housing. 18b, which accommodates a speed dial 18c, the. to represent the speed according to FIG. 3 in feet per minute with a scale range of 50 to 300, as shown, is divided, ™ and the scale area can be changed by pressing a Button 18d to other values, such as 100 or 200 instead of 50 feet per minute and correspondingly for the other numbers are changed .; These changes can be made for different machine sizes and / or for different products. In addition, a heterometer is shown at I8e. The indicator 18 is connected in a manner to be described to a pulse counter 19 which is connected to ■ in a suitable place in the machine.

Other electrical members in the electrical circuit, for example a transformer Ci? (Fig. 5) one Power source 20 are also in suitable places mounted in the machine.

Furthermore, a clock pulse switch 21 is arranged at such a point in the machine that it ■ from a "hammer 22, which together with a rotating part of the Haschin © rotates, can be operated. In the present exemplary embodiment

^':' * Ii27953

the hanger 23 and this switch 21 in one still connected to the pulse counter 19 in the manner described.

According to FIGS. M and 5, each pulse measuring device M can be connected via switch 17 to the combined thread speed and length indicator. The current source 20 is supplied by a main line and supplies a zero voltage a of 2M volts, an auxiliary voltage b of 12 volts and an instrument voltage c of 12 volts ^{via the transformer I 1.} The zero voltage a is applied to a zero device 24 which has a zero switch 24a and is connected to the indicator 18 via the control circuit 25 and also to the indicator 18 via a specific counter 26 of the pulse counter 19. The auxiliary voltage b is applied to the control circuit 26 and to the specific counter 26, which is also connected to the control circuit 25.

In operation, the switch 17 is set so that a desired device is connected to the indicator 18, sen. The movement of the yarn over the hollow 3 of the device M- sets the hollow 3 in rotation so that the magnets 8 and 9 rotate with the hollow 3 and cause a periodic change in the magnetic flux through the pick-up coil 5, which in this way provides an input signal for the indicator 18 is generated.

Appropriately, such an arrangement is met that the input signal via a standard pulse circuit (not shown, but described below) to the indicator 18 'to operate the indicator 18c for

: * 109884/1633

2327953

the passage speed of the yarn and the actuation of the indicator ISe for the length of the yarn used is passed on. Venn the switch 17 is set, it can remain set at the selected location for a suitable period of time, for example during a time in which visually a suitable number, for example 10, of revolutions of the needle cylinder is counted.

During each of these positions the counter indicator will 18 through the associated electromagnetic device 4- pulsed so that an indicator 18e Care shift, which is indicative of the length of the yarn consumed during a suitable period of time takes place and this number shift can be noted.

After each count the Zählanzeiger 18e can be manually reset to zero v; ground, or the counts can continue to run and the previous AbIe- w are determined solution. Alternatively, a counter with a preset indicator and an indicator which is activated by a signal from a rotating part of the. Machine, for example part 22, is acted upon by a switch such as switch 21 , both indicators being observed and when the numbers correspond, the counter is stopped via a manually operated switch S.

. . »AD 10988A / 1633

*: t S> Ot 4 * «» ♦ '-

¹ ZT ¹ VV '? 2127953

- • 11 -

In another arrangement for determining a self ■ in repeating Küster's produce or to one In a similar determination, a dedicated counter 26 is used, which is determined by a signal from the circulating ieil 22 is acted upon, which actuates the switch 21 and the counter 26 can thus-set be that it counts any number of revolutions, for example between 1 and 99 ». At the end of ' The set count receives a stop signal via the Kelais HL and the LOG switch (Fig. 5) from the Counter 26 to the indicator 18, which the meter count ends and shows the total length in i'uss of the yarn used on the counter 18e. When the JNuileinrichtung 24 is actuated, the counter 26 automatically reset to the original setting value and a previous length display on the indicator 18e can be erased or continued as desired, and there can be a repeated actuation of the same device or - by selecting another device one Similar measurements are to be started for this facility.

For example, the standard pulse circuit can have an amplifier, a breakover circuit and _: a monostable circuit. The signal from a device 4 is amplified by the amplifier which drives the breakover circuit. The tilting circle ensures that a constant growth time is given to the monostable Kröis, so that a constant pulse width is given out for all frequencies generated by the device 4. ·. .

109884/1633 bath

The monostable circle generates a pair of pulses, each with a constant pulse width and opposite signs for each pulse that receives the tilting circle from ". The Pulses of the same character are integrated by a circle so that the yarn speed on the indicator 18c is displayed. The impulses with the opposite. Set characters are reversed and by a 'clock control circuit and a pulse shaper circuit into an electronic one Sent counter that shows the amount of yarn used on the indicator I8e. The scoreboard 18 can advantageously count tubes with a cold cathode for counting such pulses, but other known counting devices can be used instead which allow the used length of the yarn to be displayed at 18 d.

For example again, the control circuit 25 includes means for shaping pulses generated by the closure of the switch 21 and sent to the selected counter 26 to ground. The control circuit 25 also includes a blocking switch R / L, which is actuated by a Sigaal van-the selected counter 26 via the relay RL at the bath of the predetermined count, so that a further actuation of the length indicator 18e is blocked ¹ until another Measurement is carried out ■ · ■ and the switch 2'ϊ is closed a more rounded time · This ensures a correct reading of the length indicator 18e regardless of the position of the rotating part of the machine with respect to. the switch 21 at the beginning and at the end of the set count. the

103884/1633

_aA0

- 13 -

Reset device 24 comprises a diode arrangement, to achieve a one-way rectification of the alternating voltage a and the resulting pulses to reset the selected counter 26. The reset device 24 can be manual or automatic be operated by a sequential arrangement.

Although periodic measurements can be made in the manner described, a measurement can also be made be performed continuously for any thread.

- patent claims -

OPBQINAL

109884/1633

Claims (1)

Claims 1. Yarn casting device, for a plurality of yarns in such a yarn processing machine, characterized by a plurality of revolving pulse measuring devices, which are in drive connection with the corresponding yarns, by an ixnpuls-operated speedometer for showing the yarn speed, by a also pulse-operated counter for showing the yarn length and by a selector switch with a plurality of contact points, which are correspondingly connected to the jogging pulse measuring devices and all to the speedometer and the counter. Is that which is at the machine also an adjustable Taku- pulse counter by a clock generator operable to the orbiting of a synchronously with Deia production cycle of the machine equipment part is received, provided 2. Apparatus according to claim 1, characterized in that so that the counter in such a way is adjustable so that it displays the yarn length during the course of a number of cycles to which the clock pulse counter is set, and can then be counted when the clock pulse counter has counted its set number. . · * 3. Device according to claim 1 or 2, characterized in that the speedometer and the counter are separated from one another or combined to form a display device. 109884/1131 bad are taken. 4. Device according to one of claims T to 3 »characterized in that that the selector switch is a manually operated rotary switch or a series switch with a Number of pressure switches is. 5. Device according to one of claims 2 to 4, characterized in that that the pulse counter has a predetermined Indicator mark and a second "indicator mark, which is controlled by the revolutions of the 4-way Ka sch ine, having, the lact is obtained by visually comparing the two display marks. 6. Device according to one of claims 1 to 5 »characterized in that that the "lactation is caused by an automatic stop counter", which has an automatic, has switches connected to the counter in such a way that the counter is triggered by a counting completion signal stopped by the automatic stop counter. 7. Yarn tearing device in a yarn processing riasobine with electromagnetic heating devices, which with are in contact with the yarn and connected to a counter are identified by a number of electromagnetic, revolving pulse measuring devices, which are correspondingly assigned an Iiehr number of yarns in a machine which processes a plurality of yarns are in drive contact, by a speedometer and / or counter for the impulse operation, through which the'Garngeschwin- ^109884/1633 '-16 tightness and / or yarn length can be determined by a counter with a plurality of contact points, each to a pulse measuring device and all to the speedometer and / or the counter are connected and by a pre-adjustable clock pulse counter, which οη a Täkögeber supported on a rotating machine part is operable and connected to the counter, such that the pulse counter the. Counter after a "stops a predetermined number of passes performed. 8. Yarn measuring device according to claim 7, characterized in that the counter is an electronic counter which, via a standard pulse circuit, is directed to a selected rotating pulse device. connected and operable in such a way that first -: · and second pulses are received for each pulse sent to it by the flushing device, the first pulses indicating the speed of the speedometer being integratable and the second pulses being able to be applied to the counter , and through a blocking switch which can be actuated by a signal sent by the selected counter at the end of the set counting period, blocking further operation of the counter as desired . '4 ·. June 1971/543. SAD OFHÖIMAL 109814/1633 Blank page