DE2036028A1 - Device for mass piecing on spinning units spindleless fine spinning machines - Google Patents

Description

PATENT ADVOCATE

DiPL.-PHYS. DR. WALTHER JUNIUS 3 Hanover. ■ " **

ABBESTRASSE 20 -TELEPHONE 83 45 30

July 19, 1970 My files: 1895

ELITEX - Zavody textilniho strojirenstvi, generalni reditelstvi, Libereo (Czechoslovakia)

Device for mass piecing on spinning units of spindleless pin spinning machines

The present invention relates to an apparatus for simultaneous piecing of many spinning units on spindleless pin spinning machines

Since these machines consist of a large number of spinning units arranged next to one another, it is necessary to to carry out the machine standstill in a certain sequence of operations, which the spinning process in its individual Phases ended, and also when the machine is restarted, the individual operating mechanisms in a certain way to turn on.

It is known to turn off the supply of the first Fasermaterlales in the spinning chamber during disconnection of the machine ₀

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Then the rest of this is still remaining in the spinning chamber Material processed in the form of yarn. Then the take-off device together with the take-up device turned off at the moment in which the end of the emerging from the spinning chamber Yarn is just under the influence of a negative pressure, which in the spinning chamber during their operation prevails.

. When starting up a machine that is at a standstill Then the consequence of the entry of the individual mechanisms into their function is as follows: First the commissioning takes place of the spinning chambers and fiberizing devices, whereupon the take-off and winding devices in the opposite sense as when drawing off and winding are set in rotary motion, whereby the end of the yarn is returned to the spinning chamber, whereupon the normal spinning process begins »To carry out these operations are the shafts of the drives with couplings and part of the take-off and unwinding device with a Provided the brake, which is activated after the clutch is switched off »The control

Most of the actions listed take place by means of push buttons, in some cases the whole process is controlled automatically. In this case it will the reciprocal combination of timing and switching relays is used for control.

The disadvantage of timing relays when they are used to control the entire process is that they are dependent on

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speed of the setting accuracy, which, however, also with a well set relay under the influence of Heat and voltage fluctuates. A machine with all mechanisms and devices also has one different start-up characteristics, which from the heat the machine and its surroundings as well as the level of contamination of the machine, the tension of the drive belts and the like depends "

An embodiment of a device for mass piecing is also known, in which a system of switches is used, which are controlled with the aid of a thumb driven by a main motor via a clutch. The distances between the individual switches determine the duration of the reverse rotation of the trigger device, doho the return of the end of the yarn into the spinning chamber, or the beginning of the deceleration, ie »the time necessary to spin out the fiber material residue in the spinning chamber» In the event of an interruption in the supply of electricity from the public distribution network, none of the known designs of the device for mass piecing is secured by means which would enable the end of the spinning process in the individual spinning units of the machine for the purpose of repeated mass piecing after the associated line disturbance has been eliminated »

The device of the present invention avoids these disadvantages and solves the task of controlling the mass piecing on spindleless fine spinning machines, which have been equipped with known devices up to now

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perfect and at the same time an accomplishment of the Spinning process in the spinning units of the machine in the event of an interruption in the power supply from the to design the public network in such a way that proper mass pinning is then enabled o

The main feature of the device according to the invention is that an auxiliary energy source by a electrical rotating machine is formed, which the outlet of the actual spindleless, in the main circuit switched on fine spinning machine for power generation exploits to with this power certain units of the Spinning machine delayed to put other units out of operation and that in the main circuit as well two controllers are switched on for the direct control of individual devices of the spinning units.

The essence of the invention is shown below with reference to an embodiment shown schematically in the drawing further elucidated it show?

Figure 1 is a schematic front view of the device of the invention on a spinning machine,

Figure 2 is a schematic detail of a control mechanism in the working position and

Figure J5 is an electrical circuit diagram showing the arrangement illustrates the necessary elements and the control process of the whole mass piecing process.

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The main energy source in a machine equipped with the device according to the invention is a main motor 9 * which drives an electromagnetic clutch 17 and clutches 19 assigned to the individual spinning units via gear drives Γο, 11, 12 and 13 spinning chambers 5 and via gear drives 15 * 16. These mechanical or electromagnetic clutches 19 are used to drive a feeder roller 4, which feeds a material 2 to be processed, for example in the form of a sliver, from a can 1 into a fiberizing device 3, which is driven by its own electric motor 31. After the fiberized material has been processed into a yarn 7 in the spinning chamber 5, this yarn 7 exits the spinning chamber 5 through a take-off channel 6 and runs between take-off rollers 66, 66 * via a distributor 8 ^tf in the direction of a winding device, where it passes through a Take-up roller 8 is wound onto a spool "Both the take-off roller 66 attached to a shaft 39 and the take-up roller 8 attached to a shaft 8 * are also driven by the main motor 9, namely the take-off roller 66 with the shaft 39 via a gear mechanism 15, 2o , 21 and an electromagnetic clutch 22. From the shaft 39, the exhaust roller 8 and shaft 8 *, which are equipped with an electromagnetic brake 3o, are driven via a gear transmission 2 ¹ J, 28, 29. For reversing the run of the take-up roller 8 and the take-off roller 66 , the machine is provided with an electromagnetic clutch 23 which, in addition to the gear wheel 2o, is connected to the take-off roller 66 and shaft 39 via the gear mechanism 24, 25, 26

The auxiliary units located behind the gear mechanism lo, 11, 12 energy source l4 is either an i> ynamo or an alter-

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nator. Between the coupling 17 and coupling 19 of the individual spinning units connecting the main motor 9 to the feeder roller 4, ^{an additional electromagnetic brake 18 is arranged on a shaft 4 1} , the coupling 19 being caused by the pulling of the discharged yarn 7 and with the aid of a pin 32 ^f pivotably mounted lever 32 is actuated. With the help of the pull rod 35, all levers 32 are set, which follow the withdrawn yarn 7 into the working position. With the help of the stop 37, an end control 38 is actuated, which with the electromagnetic brake 30 of the take-up roller 8, with which the operation of the feeder roller 4 Determining electromagnetic clutch 17 as well as with the electromagnetic auxiliary brake 18 and finally with the electromagnetic clutch 23 is in effective connection o This clutch controls the reversing of the take-off roller 66 and take-up roller 8.

The overall process of mass piecing on the whole machine is controlled with the help of a control mechanism housed in a cover 34, which is provided with a helical gear 40 (FIG. 2) wedged on the end of the shaft 39, on which shaft 39 also the draw-off rollers 66 of the individual spinning units The spindle-less pin spinning machine is attached with a further screw wheel 41 in engagement with the screw wheel 4o, which is either designed as a ratchet wheel itself or with a ratchet wheel * or a freewheel

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a similar device is connected. On a shaft 42 of the helical gear 41 is a two-armed lever is 4j arranged with a resilient pawl 44 loosely rotatably, which engages that on the helical gear 4l formed or connected thereto ratchet _o During rotation of the helical gear 4l in the direction of arrow S ₁ is drr two-armed Lever 4j5 at rest. In the rest position, by the action of a tension spring 46 suspended in one arm of the lever 415, the other arm of the same lever is supported against an adjustable bracket 45 »

The control mechanism also consists of a two-armed reversing lever pivoted about a pin 48 47, whose longer arm has a beak 47a is provided, which is rotatable with a beak mounted pawl 49 cooperates. This pawl 49 holds the reversing lever 47 in the working position, in which a free end of the longer arm secured a limit switch in the closed state The helical gear 4o further engages in the larger wheel of a double wheel 51 a., while the smaller wheel with a gear 52 is engaged. Both the double wheel 51 and the Gear 52 is on a common to a pin 51a of the double wheel 51 pivotably mounted scissors arranged o Under the gear 52 there is another Gear 55 * which is firmly, but adjustable, connected to a lever 56, which is in his Basic position supported against an abutment 57 During operation, as a result of the action of a

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^{Electromagnet 5 ^ the gear 5 2} mounted in the scissors gear 53 is disengaged from the gear 55, while otherwise the gear 52 is attracted owing to the action of a tension spring 58 suspended in the scissors 53 in the direction of the gear 55 ο

The device of the invention operates as follows:

Electric current is supplied through a main switch 69 to ψ Protect 59 60 as well as in a transformer 6l with rectifier fed (Figure 3) · The electromagnetic brakes l8 and 30 (Figure l) are turned on and the electromagnetic clutches 17 * 22, 23 as well as the * Electromagnet 5 ² J- (Figure 2) switched off »By pressing a button 62 (Figure 3) a relay 63 with a holding contact 633 is switched on, which is why the contactor 59 is switched on via a contact 637 and thus the main motor 9 is put into operation _e Simultaneously switch contacts 633 switch on electromagnet 5 ^ and switch contacts 632 off. By pressing a pushbutton 64, the contactor is switched on, which is coupled to the contactor 59 by means of contacts 5ol, whereby the electric motor 31 for driving the fiberizing device 3 is put into operation (FIG. 1). When a contact 60I (FIG. 3) is switched on, a control lamp 65 lights up, which signals that the mass piecing can begin. By squeezing. d _o i. The end control 38 is switched on by means of the hand lever 36 (FIG. 1) in the direction S and is stopped in the switched-on position

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a contact 382 (Figure 3) is switched off, which switched off the electromagnetic brakes 18 and 3o via a contact 383, the electromagnetic clutch (Figure 1) and via a contact 381 (Figure 3) the electromagnetic clutch 23 (Figure 1) is switched on and this in _{a time sequence 0} corresponding to the setting of the cited contacts Yarn 7 is introduced through the take-off channel 6 into the spinning chamber.This reversing run is interrupted by switching on the end control 50 with the aid of the two-armed lever 43 (Figure 2), which by the ratchet wheel firmly connected to the screw wheel 4l in the opposite direction to the arrow direction S ₁ As a result, one arm of the two-armed lever 43 strikes the shorter one The arm of the two-armed reversing lever 47, which thereby pivots around the pin 48 and switches on the end control 5® with the longer arm. Thus, contacts 5o2 (FIG. 3) are switched off, the electromagnetic clutch 23 is switched off and a contact 5o4 is switched off. In this way, the electromagnetic brake 18 is switched off from the area of the electromagnetic brake 3ö and at the same time contacts 5ol and also contacts 5o3 are closed and thus the electromagnetic clutches 22 and 17 are switched on (FIG. 1). During this operation, the beak 47a (Figure 2) of the Revtrslerhebels 47 was detected by the rotatable pawl 49, so that the end controller 5o held in the switched-on state ; becomes and the spinning units of the machine normal

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Once the machine 68 (Figure 3) is stopped by means of the push-button 6y (Pig. 1)> optionally with the aid of a limit switch, the relay 6] 5 is turned ₀ About contacts 631 is the electromagnetic clutch off 17 (Figure l) to give the transmission of the rotary movement from the drive motor 9 to the shaft 4 ^{r of} the feeder rollers 4 is interrupted. At the same time, the electromagnetic brake 18 is switched on with the help of the contacts 632 (FIG. 3), whereby the rotary movement of the shaft 4 * and the feeder roller 4 is completely switched off. By "separating the switching contacts 633, the

"Electromagnet 54 (FIG. 2) switched off. It therefore ceases to hold its core, which forms part of the cutters 53. The cutters 53 thereby pivot around the pin 51a of the double wheel 51 in the downward direction, so that the cutters 53 are supported Gear 52 comes into engagement with gear 55. As a result of the rotation of the double gear 51 in the direction of the arrow Sg, the gear 52 rotates in the direction of the arrow S ^, and transmits the rotary motion to the gear 55 * with which it is in engagement and which moves in the direction of the arrow S ^ This gear 55 takes the lever 56 with it, the longer arm of which abuts against a projection of the pivotable pawl 49, which consequently pivots in arrow direction S ₅ and disengages from the beak 47a of the two-armed reversing lever 47, the longer arm of which swings out about the pin 48 in the downward direction and thus switches off the end control 50. The electromagnetic brake is activated by closing the contacts 5o2 (FIG. 3) 3 ° switched on, which stops the rotary movement of the shaft.8 * with the take-up rollers 8 «By separating the contacts 637, both contactors 59» 60 were kept out beforehand. ■■■■■■

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As soon as for any reason - except for shutting down the machine with the aid of the push button 67-e * to interrupt the supply of drive energy to the The main source is the machine run-out, i.e. that Spinning out the material residue in the spinning chamber 5 * the termination of the delivery of processed material and all other claims by the Auxiliary power source 14 secured, which is either a dynamo or an alternator with controlled rectifiers. The work process agrees perfectly with that one Process corresponds to that described earlier for the case of a machine shutdown with the aid of the push button 67 became.

The advantage of the device according to the invention is in particular in the fact that in the event of a malfunction they shut down the spinning units with almost no time delay and automatically ensures the uniform run-out, both in terms of construction and maintenance is simple and the operation is almost trouble-free

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Claims (1)

Claims Device for mass piecing on spinning units spindleless pin spinning machines, characterized in that it is connected to a main and auxiliary power source is equipped that the auxiliary power source (l4) is formed by an electric rotating machine, the the outlet of the actual spindleless spinning machine switched on in the main circuit exploits and that in the main circuit also two controllers (38, 5o) for direct control individual devices of the spinning units are switched on. 2. Apparatus according to claim 1, characterized in that the auxiliary energy source (l4) by a dynamo is formed Device according to Claim 1, characterized in that the auxiliary energy source (14) is provided by an alternator is formed is β - 13 109808/1840 4. Apparatus according to claim 1 and 2 or 5, characterized in that that the end controller (38) with an electromagnetic brake (Jo) _{5 of} a winding roller (8) and further with an electromagnetic clutch (17) for controlling the run of feeder rollers (4). and finally with an electromagnetic clutch (2j5) for controlling the reversing run of a take-off roller (66) and take-up roller (8) is in effective connection ο Device according to claim 4,
characterized, . that the electromagnetic clutch (I7) with an electromagnetic Additional brake (l8) interacts, which is also controlled by the final controller (j58) » 6. Device according to claim 1, 4 and 5 * characterized, that the end controller (5o) with the electromagnetic clutch (17) for controlling the run of feeder rollers (4) and their electromagnetic auxiliary brake (l8) and further with an electromagnetic clutch (22) for controlling the run of the take-off roller (66) and Take-up roller (8) is in operative connection, cf ± e activity of the end controller (50) is controlled by an electromagnet (54) via a locking mechanism (47, 49, 55 * 56) and a one-way freewheel mechanism (41 to 46). - 14 - 109808/1840 7. Apparatus according to claim 1 and 4, 5, 6, characterized in that that both the position of the lever (56) of the locking mechanism in relation to the gearwheel (55) as well as the position of the lever (4j5) of the one-way pre-running mechanism is adjustable with respect to the lever (47) of the locking mechanism. 8. Apparatus according to claim 1 and 6, characterized in that "that the end control (5o) over .the locking mechanism (47, 49, 55 * 56) controlling electromagnet (54), is controlled by a relay (63) together with a contactor (59) » 9ο device according to claims 1 and 6, characterized, that the end control (5o) via the locking mechanism (47, 49, 55 * 56) controlling the electromagnet (54) directly is controlled via auxiliary contacts of the contactor (59), 109808/1840