DE1685670C - Spinning machine with hydraulically raised and lowered ring rail - Google Patents

Description

The invention relates to a spinning machine with a ring rail, the lifting and lowering of which is carried out a single-acting hydraulic working cylinder is generated, which is dependent on a pressure fluid from the position of a slide or the like from a hydraulic pump of constant power with a flow regulator controlled by the ring rail, always flowing through in the same direction is fed, with the term F- "i g. 1 is a diagram of the ring rail movement, which is necessary for the formation of a kötz and exercised with the device according to the invention will.

F i g. 2 shows in a diagrammatic schematic view the essentials for the movement of the ring rail Parts of the device according to the invention;

3 to 7 show in F-Orni of schematic line plans the hydraulic control device for the ring shift in five consecutive characteristic AI positions.

In the formation of a ucraitigen device To move the ring bank, of course, the 3e that applies to the formation of the selected Kötzerwick 1

Spinning machine also twisting machines or the like fall 55 law of motion are taken into account,

should. The following example refers to

In a known spinning machine of the vorer- to a winding type in which conical bearings glci-

mentioned Art (German utility model 846 949) rather, relatively low amount due to relocation

the ring bank is made by a single-acting ring bank stroke to form a Kötzers nacii

Moving working cylinder, fed from a pump 60 are placed on top of each other. This winding

whose performance is not described in more detail by one therefore also called "Kötz cone winding"

controlled by the control spool. Here lies the draws.

Control slide between the hydraulic pump and the movements of the ring rail, which in the diadem working cylinder, so that it does not at the same time the gram of the F- i g. 1 are shown, in which as feeding and emptying of the working cylinder her- 65 abscissa the time Mind as ordinate can call the altitude Λ, and it is therefore necessary to appear next to the ring rail are the following, under which the .Steuschieber a reversal for the Circu- assumption that the ring rail of the machine should be provided for 1.1'ion, e.g. a reversible shifting device, through the beginning still in the lowest position PMB (withdrawal-

g) is located which they
d..T Kiil / cr has taken:

a quick hoof movement Af

after completion

what the ring! i gg ₁ showing the ring

bench at about half the height of your face H

the oscillating shaft 11 (lowering the ring rail) is moved to.

The control device comprises a hydraulic single-acting piston-cylinder unit with a Abilid which is vertical

wa aui uie name none inres ucsanunubes einiacn wirKenucs mhuui - ^; · »» · - «) <=> ,

This stroke movement is intended to drive the subsequent 5 single-acting working cylinders, which senKrcc,

! • rmgt. This lifting movement should be the subsequent Tension of the output rollers 5 of the stretching machine prepare incoming threads.

This lifting movement is followed by a rapid lowering movement M. ,, which causes the tension of the thread and brings the ring rail into the piecing position (e.g. to a height P ₀ , which is slightly higher than the drawing position PMB ), in which the formation of the . (! mentioned approach should take place.

Thereupon the ring rail is given a sequence of bd Skb Μ tilt bi i

single-acting working cylinder, we are to the shaft 16 and its stationary housing 17 appropriately carries the fixed anchoring points 13 of the flexible tension members 12, while its movable Arrangement, which in the present case by a piston 17 ″ and a piston rod 17 ή is formed, is connected to the axis 16, as shown in FIG. 3 emerges.

In this training, the fluid pressure in the working chamber 17c of the working cylinder results in h 16 d oscillating shaft 11 ent

Thereupon the Kinunank become a hoigc of AmeiisKamnici i / lu ^ ™ uv. ^ _; ....- Hebe- und SenkhewegungeiTM, granted, with two 15 that the axis 16 is from the Schwingwellc ic, .., r , ^b ■ " ^l , ,, ... _C -__. .. ". 1".,, I ".. u ^ hnn, w R nübank causes wan-

Lifting and lowering movements Μ. _λ , with two helicbige successive movements being offset in height. These movements cause the formation of the Koi winding by laying the conical layers on top of one another.

After the Kotzeraufhaues has ended, the ring rail carries out a quick additional upward movement M _{x of} low amplitude in order to allow the winding of a few turns of thread above the Kotzer winding at a constant height, which is a Si db Kd i Köters

that the axis 16 moves away from the swing and so causes the lifting of the ring rail while the switching of the working chamber 17 r to the outlet, the lowering of the ring ': .nk 7 enables.

The pressurization ider the circuit on the outlet of the working chamber 17 c of the working cylinder 17 takes place according to the invention by means of one and the same distribution line 18 in which a throttle valve 19 is expediently provided with which the speed of the ring rail movement is set k

■ I, 111 "W JV. I II ·· fc * ·!» · MM »V. · ... ··.» - "... —.... £, _

be wound up to "underwind".

The spinning machine for forming pots according to the above process can be used as a whole except for the control devices according to the invention for generating the movements of their ring hank on any

aui i ^ Mii ^ iaiuv.1 inrnc tu \ _i 111 ** 5111111-11, * twvii \ - · _ · .. * - _t) w ....... _u .

Peak reserve at the upper end of a Kötzers 25 can.

form. Here hydraulic control for pressurization

Finally, the ring rail executes a rapid up or switching to the outlet of the working chamber 17c downward movement M. to its lowest position PMB of the working cylinder 17 to control the ring rail, in which a few turns of the machine at the foot of the Kötzers contains a constantly conveying hydraulic

'' '· ■ - ■ 30 lische pump 20, which the pressure fluid a

Removes storage container 21, in which it is returned through the outlet line 22.

According to the invention is now to enable the

Generation of the movements of their Kingnank aui Dene supply or the emptying of the working chamber 17 can be designed in a suitable manner, in particular 35 of the working cylinder 17, the return line 22 with the one shown in FIG. 2 with spindles 2, delivery line 23 of the hydraulic pump 20 vcrwelclic by a main motor 4 rotated and has a Durchgangsquerschniu, which th shaft 3 are driven with which the sliver allows a flow rate of the control fluid, the spindles 2 feeding output rollers S which is greater than the delivery rate of the pump 20 from the main shaft 3 via a total of 6, with a controlled countershaft being driven in the outlet line 22. Throttle 24 (flow regulator, volume regulator) switched on To form the Kötzer 1 on the spindles 2 is the one that is provided for the regulation of the ring rail 7 through the outlet line, which allows for not shown 22 flowing amounts of liquid, vertical guides cooperate and through Rie The working cylinder 8 is thus formed with one end of a common tension member 45 of 17 when it is connected to the drum 10 for a certain degree of opening, the other end of which is in equilibrium with one of the flow regulator 24. which non-rotatably fed on a hydraulic fluid at low degrees of opening, oscillating shafts performing back and forth rotations """'~~""' ^A " ^vllfx

11 seats. guiniaiii.1 r..iw.

To generate the movement of the Schwingwellc 11, 50 the current regulator 24 not only enables the

in the reversal of the working cylinder 17 corresponding to the lifting of the ring rail 7 (feed or sense, two tension members 12 are provided, one of which is "'"''

Each land is anchored at a fixed point 13,

while its other end moves on a drum 14- »uu. ^ .. _Λ ^,. ^« .. _ο - - "_

is fixed, which rotationally fixed on the SchwingwcIIe 11 55 lifting movements take place the faster the closer

seated, with these two tension members via deflection, the flow regulator 24 moves to its closed position

Hydraulic fluid fed at low degrees of opening, while it is switched to outlet at larger degrees of opening.
The Stromre

Reversal of the working cylinder 17 (supply or Emptying to raise or lower the ring rail), but also to regulate the speed of the Lifting or lowering movements of the 1st ring rail, whereby the

hllr take place the closer

Discs 15 run, which are carried by a common axis 16, which to the SchwingwcIIe 11 is parallel and from this more or less by a control device described in more detail below can be removed.

The adjusting devices for generating the lifting gear Lowering movements of the ring rail 7 must be designed in such a way that they move the axis 16 from the oscillating

the current regulator24 its closureg finds, while the lowering movements take place the faster the closer this limb comes to its complete one Is in the open position.

In d ^ ni hydraulic control circuit of the working cylinder 17, so to speak, a constant "leak" is generated through the outlet line 22, which through the Stromrcgler 24 is determined. The flow regulator is traversed by a flow of liquid, its lih Rih the funding side of the

be formed that they acnsc 10 from acr acnwnig- «, .va» ,,,, ^, .. ^ ". _O

shaft 11 quei can move away (lifting the ring 65 invariable direction from the conveying side of the

bank), while the axis 16 under the action of the pump 20 via the delivery line 23 and then the

Dead weight of the ring rail 7, optionally with the outlet line 22, goes to the storage container 21.

Support by means of return devices across

Was avoided by the slrom regulator 24 the risk of the formation of emulsions and the response times of the control system are considerably reduced be reduced.

The connections of the working cylinder 17 and the outlet line 22 to the delivery line 23 of the pump 20 take place in such a way that the line 18 for feeding and / or emptying the working cylinder 17 and the outlet line 22 are connected in parallel to the delivery line 23 of the pump 20, so that the working chamber 17 is not c of the working cylinder 17 from the controlled by the controlled Vcntilglicd 24 »Lcckslrömung" is traversed.

The control of the flow regulator (Durchflußmcngcnrcglcrs) 24 takes place in such a way that the piston slide 24 a is adjusted by a mechanism which responds to any difference between the actual position assumed by the ring rail 7 at a given moment and its desired position in which the ring rail 7 would have to be at the point in time under consideration in order to keep the Kötzer's law of formation, this difference causing the actuation of the piston slide in the sense corresponding to the cancellation of this difference, this cancellation then the standstill of the slide 24 "and a state of equilibrium of the whole hydraulic control.

In other words, with such a control, the piston slide 24 a remains immobile when the The actual position of the ring rail coincides with its target position while it is moved in the opening direction is when the ring rail is above its target position, and in the closing direction, when the ring rail is below its target position is located.

The piston valve is used for the mechanical implementation of a control device that satisfies the above law 24 ″ exposed to the action of a return spring 25, which moves the slide 24 ″ in the sense seeks to move the growing flow opening.

Furthermore, a flashlight arrangement with a flexible tension member 27 "acts on the slide 24", which runs over a roller 26 carried by the slide 24 ", with first mechanical pulling devices on the runs 27" and 27 h of the flexible tension member running over the roller 24 " 28, 33 to 37, which issue a Translationsbcwcgung this run portion, the amplitude of the desired position of the ring rail 7, and second mechanical traction devices 32 act which α the run portion 27 and 27 h a Translationsbewcgung grant whose sense is opposite to that of the preceding, and the amplitude of which expresses the actual position of the ring rail. The first and the second mechanical pulling devices are designed in such a way that when the target position coincides with the actual position of the ring rail, the two translational movements imparted to runs 27 "and 27" by the first and second mechanical pulling devices correspond to the absolute value but are opposite, so that they cancel each other out so that the axis of the deflection roller 26 remains immobile and thus the slide "24" stands still, while every (positive or negative) difference between the target position and the actual position is one Change in the total length of the runs 27 <i and 27 b and a displacement of the mentioned.-Vnse and the slide 24 α result until this difference is compensated.

The mechanical pulling devices which express the theoretical position of the ring rail bring, can be realized expediently and particularly easily that on the pulley system a heart disk 37 acts, which expresses the peeping stroke of the ring bank, while the free linden tree of Trumms 27 "is anchored to a winding drum 28, which is less Speed over a not shown,

in built-in friction clutch from the drive mechanism 6 of the Licferwalz.cn 5 is set in rotation in one direction and by winding it up of the Trumms 27 "the successive upward displacements of the bearing stroke, that is, the so-called Basic stroke /. To express that the ring rail for the formation of superimposed conical Layers should experience.

For this purpose, the take-up drum 28 is connected to the drive mechanism 6 via an intermediate gear.

so worm 29 and worm wheel 30 and a reduction gear 31 driven.

The mechanical traction means, which bring the actual position d ^rr ring rail 7 for expression can suitably be formed by the free run portion of the Hndc is anchored 27 h on a drum 32, which sits on the Schwingwcllc. 11

The locking of the fusehole assembly

tion is realized by the fact that the Trumm27 /> the bottle pull arrangement between the roller 26 and the drum 32 via a second roller 33 is performed, the axis of which is carried by a tie rod 34, which on the one hand under the Effect of a spring 35 (the force of which is greater than that of the spring 25), which is located on a stationary contact surface 36 and seeks to remove the Umlcnkrollc 33 from this, so that the tie rod 34 always with his free hand against the heart 37 is pressed.

Under these conditions, the combined effects of the heating disk 37 and the take-up drum bring about 28 the desired back and forth movements of the ring rail (I ^ agcnhub) and those as well desired successive height shifts (basic stroke) of the same and add this to the target position, while dit. Effect of the drum 32 the actual position of the ring hank expresses.

The Si rom regulator 24 comprises a piston valve 24 ″. the slide 24 ″ always having an opening 24 ″

uncovered, which at the with respect to the Stromrcglcr Strömungsaufwürts lying portion of the outlet line 22 is connected. and depending on his Position more or less closes an opening 24 <, which is located on the strömungsabwiirts

Section dor outlet line 22 is connected

In addition to the advantages already mentioned, which result from the fact that the flow is controlled Valve arrangement 24, always flowing through in the same sense, bids such a hydraulic control

the advantage that devices for blocking or cure / closure can easily be built into them, with which rapid lifting or lowering movements the Ring bench can be made.

Furthermore, the hydraulic control of the

Ringhank another working cylinder 39 can be controlled, which when it is suppressed the Release one in I- i p. 2 indicated under the Effect of a compression spring standing drum

lircm.se/· 'hcacts, which brakes the main wheel, when tier working cylinder 39 is switched to Auslall will.

The above hydraulic control can expediently be completed by the following auxiliary arals (shown in FIGS. 3 to 7), which are intended to be used for executing the movement program of the ring rail determined by the diagram in FIG.

These auxiliary machines are as follows:

- An electromagnetically operated two-way valve 40, which on the Auslaßlcitung 22 between the feed line 18 of the working cylinder ;, 17 and the Stromrcglcr 24 is arranged. This valve 40 is designed so that it interrupts the outlet line 22 when it is not energized, but the continuity of the Reestablishes conduction when energized;

- a further solenoid-operated two-way valve 41, which is ^ao installed in a conduit 42, which 23 20 connects the delivery line of the pump with the underlying liiiitcr the Stromrcgler 24 portion of the Auslaßlcilung22. This valve 41 is

designed so that it establishes the continuity of the line 42 when it is energized, and this ^aj at his leisure would interrupts;

- An electromagnetically operated three-way valve 43, which allows the feed line 44 of the Brcmsarbcitszylindcrs 39 either when it is driven with the delivery line 23 of the pump via a check valve 45 or when it is de-energized with an outlet line 44 to fill the working cylinder 39 into the reservoir 21 To get in touch;

- A pressure relief valve 46, which is arranged on a line 47, which the delivery line 23 of the pump 20 connects to the outlet line 22, this pressure relief valve 46 being calibrated in this way is that there is an overpressure on the delivery side of the pump oil Tnct;

- and a check valve 48 arranged in the delivery line 23 of the pump 20.

F.'s now supposed to be the mode of operation of such a hydraulic Control of the ring rail with reference to the schematic representations of F i g. 3 to 7 are explained, in which with strong lines the sections of the hydraulic flow circuit are shown, which are in 1 äligkcit for each operating state shown

The diagram in FIG. 3 shows the reciprocating movement Af ₁ , the valve 43 being energized, so that the bicmsc of the machine is released. while the valve 40 is not energized and thus the return 22 is interrupted. The valve 41 is also not available, so that the line 42 cl> c is interrupted in the event. Under these conditions, the working cylinder 17 is fed with the entire delivery rate of the pump 20, and the ring rail is raised quickly until the valve 40 is driven.

The scheme of FIG. A corresponds to the screw movement M ₁ , the valve 43 still being energized while the valve 40 was energized in order to put the return into operation. 22 and the current regulator 24, while the valve 41 remains blocked. A rapid lowering movement of the ring rail then ensues as long as the slide 24 ″ of the slide assembly 24 has not found its equilibrium position, which corresponds to the height of the ring rail, since the belt drum 28 was returned to its zero position at the end of the previous working cycle ( this return is made possible by the presence of the friction clutch provided to drive the drum.

The scheme of FIG. 5 corresponds to the movement Af. ,, which brings about the formation of the kötzer by conical layers of the same type, the main molar 4 of the machine being left on at the beginning of the movement Af ₂ . This operation is the one corresponding to the winding up of the Kötzer, the valves 40 and 43 are always energized, while the valve 41 is not energized, the flow regulator 24 ensuring the correct height of the ring rail at all times.

The scheme of FIG. 6 corresponds to the movement / VZ ₄ , the valve 43 always remaining energized, while the energization of the valve 40 ceases, so that the outlet line 42 is interrupted. The valve 41 is also still not energized, so that the line 42 is interrupted. Under these conditions, the working cylinder 17 is fed with the entire delivery rate of the pump 20. When the ring rail arrives at its top dead center, the pressure relief valve 46 opens, which the winding J_. Thread windings for the formation of the peak reserve of the grain are permitted during the end of the movement Af ₁ at a constant height.

Finally, the scheme corresponds to FIG. 7 of movement / Vf _s with valve 43 still energized while valve 40 is still de-energized, but valve 41 is energized so that it restores the continuity of line 42 and a rapid immediate emptying of working cylinder 17 allowed. The ring rail then goes down to its bottom dead center PMB , and the windings for underwinding are wound up at the foot of the Kötzers. During the rapid lowering movement dci Ringbanl to a height indicated by the point S in the diagram of FIG. 1, the main motor 4 is switched off (z. IV by a switch 49 which is operated by a cam 49 «, wel rather on the drive shaft 11 the ring belt sits as shown in Fig. 2), and the excitation of the valve 43 ceases, whereby the working cylinder 39 and the line 44 u are switched to the outlet and the drum brake / 'starts under spring force and di no' .i: rotating 1 rommelwellc 3 stops.

For this purpose 2 sheets of drawings

309621 /?)

Claims (4)

Claims I. Spinning machine with ring rail whose lifting and lowering movement is controlled by a single acting hydraulic working cylinder is generated, which is dependent on a pressure fluid the position of a slide or the like from a hydraulic pump with constant power a flow regulator controlled by the ring rail, always flowing through in the same direction is fed, characterized in that that the return line (22) of the working cylinder (17) is connected to the delivery line (23) of the hydraulic pump (20) and the passage cross section of the return line (22) allows a greater flow rate than corresponds to the delivery rate of the hydraulic pump (20) and that the flow rate regulator (24) is switched into the return line (22) and is mechanically controlled by the ring rail 2. Spinning machine according to claim 1, characterized in that between the connection (18) of the working cylinder * (17) to the delivery line (23) of the pump (20) and the flow rate regulator the hydraulic fluid for lifting the ring rail in a certain direction and in reverse Direction for lowering the ring rail circulates. Through the necessary reversing device (Reversing slide) occur during the change in position of the reversing device sharp hydraulic Shocks occur, there is a delay and inaccuracy of the control operations due to the formation of Emulsions and the response time of the reversing device, and the hydraulic pump works during the lowering movement of the ring rail against a barrier. The object of the invention is to avoid the aforementioned disadvantages of an additional reversing device and thus the hydraulic one Control "to simplify the raising and lowering of the ring rail. This object is achieved according to the invention in that the return line of the working cylinder the delivery of the hydraulic pump is connected and the average cross-section of the return allows a greater amount of direct flow than corresponds to the flow rate of the hydraulic pump and that the flow regulator in the (24) an electromagnetically operated two-way 25 return line switched on and meventil from the ring rail (40) is switched on. "is chanically controlled. Thereby, dal! according to the invention of the flow flow regulator behind the working cylinder in its 3. Spinning machine according to claims I and 2, geke: n / eichnet through a connection (18) of the working cylinder (1 ^7λ with the oil sump (21) connecting two electromagnetically operated two-way valve (4J). 4. Spinning machine according to one of claims 1 to 3, with a drum brake for the main drive shaft, whose solution lies against the spring force of the outlet line, it can supply both the working cylinder or the lifting of the ring rail as well as the emptying of the working cylinder or lowering the ring rail, depending on whether the flow rate allowed by the flow rate regulator is smaller or larger than the funding by a second, single-acting hydraulic release of the pump, with which additional, disadvantageously working ical working cylinder is done, marked tende control devices for the circulation of the by a third electromagnetically controlled liquid, as in the known design Two-way valve (43), which is required in the operating state, can be omitted, of the spinning machine, the pressure line (23) with the The invention is hereinafter referred to Feed line (44) of the second working cylinder 40 explained on the drawing by way of example. (39) connects.