DE1629304C - Device for controlling the winding process on a device for the production of wound hollow or shell bodies made of fiber-reinforced synthetic resin - Google Patents

Description

The invention relates to a device for controlling the winding process on a device for Manufacture of wound hollow or shell bodies made of fiber-reinforced synthetic resin, with geometrical ordered fiber layers, the fiber strand being driven by a hydraulic motor The slide on the rotating mandrel can be moved back and forth or around the mandrel and the pitch angle of the Winding, i.e. the ratio of mandrel speed to slide speed, can be preselected.

In such devices, it causes particular difficulties for the various winding tasks required movements of the carriage and the thread eye in the correct ratio to each other and to coordinate the movement of the rotating mandrel and to avoid deviations during the entire winding process to secure.

In addition, the drive of the carriage and the thread-eye delivery according to a predetermined one periodic program must be controllable and that a The broadest and most varied possible wrapping program should be available.

The known devices developed for this purpose mostly use mechanical gears with many gradations to vary the pitch angle of the winding, whereby the periodic program sequence is achieved in that transmission means, e.g. B. link chains, through recesses generate the required intervals. While these inevitable means work very precisely, they have the fundamental shortcoming that they are in their possibilities of variation, especially with regard to the pitch angle the winding, are very limited, with finely graduated angle values not at all can be achieved, since the required gear ratios of the transmission cannot be achieved or only with an effort

3 "'4

can be realized on wheelsets, the non-portable primary / secondary impulses a setting number for

is. With the known stepless mechanical the winding angle results, which is practically stepless

and hydraulic torque converters could be variable though. Furthermore, it is determined by setting

any gear ratio in a wide range of preselection times is possible, the slide has a sym-

Range can be set. However, as is well known, 5 metric or asymmetrical back and forth movements are

Such gearboxes are geometrically inaccurate, so that, despite the use of preselected holding times,

additional regulating devices to allow the act to oscillate. After reaching the

neuter translation compared to the target-over- last preselection number by a control pulse of the

settlement is to be feared and the production of geo-summing counter value in the secondary meter is deleted,

metrically ordered thread layers is not guaranteed. io and the pulse counting starts again immediately from zero

The object of the invention now consists essentially of so that the periodic program repeats itself, borrowed a device of the type mentioned at the beginning. A particular advantage of this summing Sy-Art to create, in which, however, the cited stems results from the fact that there are deficiencies as follows and difficulties have been resolved, being written, in every point of the basic program thus permitted for all occurring movement conditions 15, with additional preselection numbers also additional ones between the thread eye and carriage the necessary functions and facilities in the periodic Switch on values in practically infinitely variable increments in advance of the wrapping process.

can be programmed and the conventional

borrowed continuously variable torque converters occurring strand systems in the longitudinal direction of the mandrel as precisely as possible

Inaccuracies are not to be feared. Connect 20 to one another, d. H. so that the thorn

should be symmetrical or asymmetrical depending on the choice when winding a closed fiber strand pattern

metric back and forth movements of the carriage by the length of the strand, measured in the circumferential direction,

can be carried out with preselected hold times, has continued. For this correction of the strand

where the periodic program is stored after the expiry, the invention uses the hold time of the slide

repeated automatically. 25 least, with a second, only during the hold time

In addition, there should be an automatic correction of the preselection effective for the slide in the primary meter

Sliver deposit be possible so that the exact deposit can be set, which is used as a correction of the fiber strand-

the wrapping tape on the mandrel can also be used with a high shelf.

Winding speeds is guaranteed. Another advantageous use of the invention

According to the invention, this object is an exact device in the case of a device according to the invention

Device for controlling the winding process on the control of the reversal of movement of the carriage. Included

a device for the production of wound there is the requirement, the carriage speed

Dismantle hollow or shell bodies made of fiber-reinforced in the reversal points so that it is possible

Synthetic resin, with geometrically ordered fiber layers, is to allow a maximum carriage speed,

whereby the fiber strand is unacceptably high by means of a hydraulic 35 without the reversal process

motor-driven slide on the rotating mandrel and inertia forces take effect.

is movable towards or around the mandrel, and this is achieved according to the invention in that

The pitch angle of the winding, i.e. the ratio in the area of the reversal of movement of the carriage

from mandrel speed to slide speed, pre-measuring value transmitter, for example a potentiometer,

is selectable, solved in that for generating an electrical 40 is arranged, which is actuated by the slide

tric, with the peripheral speed of the rotary and which with the circuit of the actual value encoder,

thorns synchronous pulses a pulsor provided z. B. a potentiometer, for the slide movement

is, which cooperates with a primary meter, is electrically coupled.

The number of pulses corresponding to the preselection could have a similar effect as a result a secondary counter passes on, and that to achieve 45 that with purely electrical means of the slide Conversion of the secondary impulses into mechanical is scanned and by a preselectable time-steps a digital-to-analog converter, consisting of a number of additional electrical resistors essentially from a stepper motor, a hydrau- are switched on in stages in the circuit, Lischen servo valve, a hydraulic motor and a This device has the disadvantage that it Target value transmitter, is provided, the target 5 ° - in contrast to the proposal of the invention - not Valuator with a hydraulic motor is functionally non-stepped, but works in steps and moreover is the whose angle of rotation in connection with a is time-dependent, so that one of the respective Actual value transmitter a unit of size of the slide path and slide speed-dependent displacement determined at a preferably constant mandrel speed. Falsification of the desired deceleration curve

For the extreme case that a fiber strand deposit 55 results.

parallel to the mandrel axis, with a pitch Also for controlling the device for fiber angle the winding of 0 ° is to be applied, strand guide or the infeed of the fiber strand is According to the invention, a special drive for the guide eye to the winding mandrel is the pulse generator of the invention provided, which is suitable in an advantageous manner regardless of the current device. The mandrel speed works, so that only the slide through 60 In the case of the known servohydraulically controlled Einden The digital-to-analog converter can be moved while this infeed movement is initiated the step-by-step rotation of the mandrel into the end position is triggered by purely mechanical control means. This Gen the slide movement by preselected seconds, however, have the disadvantage that their function is a Därimpulse can be triggered. extensive calculation and difficult adjustment

With these resources, you can use the im 65 for every wrapping program.

In contrast, the controlled delivery of the

falling speed a slide speed to guide eye according to the invention achieved by

arrange, with the sieving factor as the quotient from that the transducer through a lever arm

5 6

One servo device attached to each end of the slide bed controls the slide movement

th, longitudinally adjustable stop pin depending on the mandrel rotation. The usage

is operated by the slide, the transducer of an electrohydraulic stepper motor giving the

is designed so that the slide at one of the advantage that due to the caster angle between

Central position adjustable by a certain angle 5 electric motor shaft and hydraulic motor shaft

Position of the lever arm stops. rapid change of direction a certain number of

In addition, according to the invention, the slide control pulses are stored and returned to the

with a per se known * servo-hydraulic slide coordination can be corrected *

actuated, extendable rod with Fäsefstrang-Füh- Furthermore, there is the electro-hydraulic stepper motor

is provided whose movement initiation and io a sufficiently high torque to make the solenoid

-eiide part of the periodic electronic data transfer not only directly, but also indirectly

controlled winding program, which is also driven via a control cam, the shape of which

a cam is provided, which the position, the actuation of this target value transmitter and thus the

nation of the guide eye via a target value transmitter, slide in linear or non-linear coordination

for example a potentiometer * controls. 15 steers towards the mandrel. In this context results

Above all, these means have the advantage that, according to the invention, there is an advantageous extension

at any point of the slide movement of the control program by using the hydraulic

the cam disk for controlling the guide motor of the stepper motor and further control disks

eyes are coupled by an electronic pulse switched on, each of which is linear or not

can be, whereby this activation then controls 20 linear functions in the winding program,

During the entire winding program with absolute In the drawing, the invention is based on one

Accuracy repeated. In addition, the schematic arrangement example can be explained in more detail.

the same cam with different mandrel lengths, assuming that a cylindrical

can be used, whereby the switch-on point in each case mandrel 1 is to be wound.

by changing the preselection in the secondary counter 25 The winding system shown essentially exists

is adapted to the relevant mandrel length. from three individual groups, namely

Another function in the periodic winding _{I} of the rotary mandrel} 1 with drive and control program concerns the periodic acceleration averages

"^ Delay ^the , ^ ^mi ^ ^s ^ ^sc ^ ^indi f ^ ^des II) the carriage 2 with drive and control

Winding mandrel using the means and

proper establishment. For bodies with wound _{m) the} programming device.
Bottom and if there is a small winding angle

In group I, the shaft 3 of the rotating mandrel 1 must remain relatively long until the winding arm has wrapped the fiber strand between the tailstock 4 and the bearing 5 rotatably around the winding body or 35 is supported z. B. through the chain drive 6, 7 until the mandrel has rotated about 180 °. driven. The driving wheel 6 sits on the off-Since these holding times are uneconomical, output shaft 8 of a continuously variable transmission 9, known at the beginning of the wrapping arm function of which z. B. accelerated via the toothed belt drive 10, 11 of the mandrel and decelerated again until a hydraulic motor 12 is driven and the handwheel 13 can be regulated again in its 40 by the wrapping arm with the guide eyes. With the shaft 8 is also the starting position. For this purpose, the mentioned change is connected in a rotationally locked manner in a geared back gear 14, 15 known winding machines that are translated into high speed. This drives via a step of the mandrel speed through the use of a differential gear 16, the pulse generator 17, which reaches the primary gear, which drives the mandrel additional pulses for the primary counter (see group III). These means are, however, especially with 45. The gear 16, whose speed levels are due to a larger mandrel dimensions, not appropriate, since the switch button 18 can be selected, enables the rapid acceleration and deceleration of the mandrel drive speed of the impulse 17 with changes to a correspondingly strong mass Stress and the mandrel speed in each case at the required level result in high wear of the mechanical parts or to keep them at the optimal pulse frequency. In addition, the setting and equipping 50 With the sprocket 7, a sprocket 19 rotatably of such devices takes a lot of time in Artspruch. connected, which via a chain wheel 20 drives a control opposite in the single shaft 21 according to the invention. Provided between this and the chain direction that the corresponding control wheel 20 is a hydraulic clutch 22, the (servo) hydraulic mandrel drive flows into which is actuated by pressure oil, the valve 24 via the line is electronically controlled by the magnet, depending on the winding program 23 is controlled. On is controllable, whereby the setting and set-up times of the control shaft 21 sits a locking disk 25, in which the device is reduced to a minimum. Recess 26 a conical locking wedge 27 below fi Also, no harmful peak stress can occur. The action of a spring 28 engages. Further, with gen occur because the acceleration and delay of the control shaft 21 connected to a control cam 29, j: approximate moments of the hydraulic drive applied 60 which 'are ^l of a plunger of a hydraulic valve 30, without this disadvantageously large ^for! controls the acceleration of the mandrel revolutions, would have to be measured. At the end of the control shaft 21 there is a cam disk. The conversion of the impulses coming from the secondary counter 31, which is used to control the delivery into mechanical steps, is carried out by the fiber strand eye (see Group II). The via a digital-to-analog converter, for example 65 cam 31 acts with a control roller 32 zudurch a known electrohydraulic, which sits on a slide 33, which is in the Rah stepper motor with a downstream transducer. men R and is connected via an arm 34 to a This Disital-AnalogoR converter controls via pull-link chain 35. The latter is about the

Chain wheels 36 placed and with a balance weight? Mistake. The target value transmitter 39 is connected to one of the wheels 36, which component the device for controlling the delivery of the fiber strand eye is.

The carriage 2, as the main component of group II, is driven by a hydraulic motor 40, its Speed can be controlled by a servo valve 41. The slide is driven by a change gear 42, 43, 44, 45 with several stages, which can be switched by means of the claw clutches 46, 47 by means of switching lever 48 are. A worm 51, which is inserted into worm wheel 52, sits on output shaft 50 of the transmission engages, the shaft 53 of which drives a sprocket 54. In between the sprocket 54 and a mating gear 55 arranged articulated chain 56, the carriage 2 is used, which on the carriage bed 58 back and forth is guided forth movably.

The carriage consists essentially of a frame 59 with the guide rollers 60 and the Carrier 61 of the fiber strand eyelet 62, which attaches the strand 64 formed from the fibers 63 to the rotating dome 1 leads. The carrier 61 is in the carriage frame 59 by the rods 65 back and forth across the mandrel movably guided. This feed movement is brought about by a piston rod 67 in the hydraulic cylinder 68 is guided and from the servo valve 69 via the lines 70, 71 with controlled pressure medium is applied.

The fiber strand eye 62 sits at the outer end of a shaft 74 which is in the carrier 61 and in the frame 59 is rotatably mounted and takes part in the infeed movements of the carrier 61. At the other end of the Shaft 74 is a worm gear 75 which is in engagement with a worm 76, which is of a Hydro motor 73 is drivable.

The protruding end 78 of one of the rods 65 is provided with a toothing 79 into which the Gear 80 of the actual value transmitter 81 engages. This facility is used to automatically correct the Positioning of the fiber strand eye 62.

Group III (programming device) contains the primary counter 85, the one electrically connected to it Secondary counter 86, the electric stepper motor 87, the hydraulic servo valve 88, the Hydro-motor 89, which drives the nominal value transmitter 90. The electrical part also includes an amplifier 91 for the control of the carriage movement, as well as an amplifier 92 for the control of the fiber strand feed.

Mode of action

The manner in which the rotating mandrel 1 is driven can be derived from the drawing and the preceding description can be removed. The continuously variable transmission 9 makes it possible to adjust the drive speed existing conditions, in particular the diameter of the rotating mandrel 1, the winding angle and the Adjust the nature of the fiber strand. The gear ratio set in gear 9 remains during of the whole winding process exist unchanged, however - as below described in more detail - electronically controlled changes in the mandrel speed from the hydraulic motor 12 made out.

The slide movement caused by the hydraulic motor 40 is basically in all variations electronically controlled. A certain number of electrical impulses, e.g. 10000, delivered to the primary meter 85. This can, e.g. with five Decades count up to 99,999 pulses per second and give, depending on the calculated setting Preselection, only part of the received (primary) impulses off again, i.e. i.e., the primary counter counts the received pulses together until the preselected number of pulses is reached, whereupon he

ίο emits a pulse and immediately starts that again to add up the following input pulses starting from zero, and then when the preset number is reached the second pulse is emitted and so on. These secondary pulses emitted by the primary counter 85 are counted in the secondary counter 86. The latter gives if the corresponding to the area code Pulse number is reached, an electrical control signal is controlled by which the slide movement can be, whereby by setting certain preselection numbers of the carriage a symmetrical or can periodically perform asymmetrical to-and-fro movement with set hold times.

In detail, this is achieved by using the preselections from the secondary counter outgoing secondary pulses the stepping motor 87 is driven. This generated per control pulse a certain angle of rotation in a certain direction of rotation, which is via the hydraulic Servo valve 88 and the hydraulic motor 89 to the

Set value transmitter 90 is forwarded. Via an amplifier 91, which through the line 101 with the electrical part of the servo valve 41 is connected, this controls the hydraulic motor 40 so that its Angle of rotation in accordance with the actual value transmitter 100 has a slide path of, for example, 1 cm in one direction.

By the means described z. B. the following control tasks for the slide movement fulfill:

Preselection I = Zl: Slide remains until ZI impulses in the end position Left,

Preselection II = Z2: Slide moves with Z 2 pulses to the end position on the right,

Preselection III = Z3: Slide remains until Z3 pulses in the end position on the right,

Preselection IV = Z4: Slide moves to the starting position with Z4 pulses Left.

The control pulse Z4 clears the secondary pulses in the secondary counter, so that the periodic program repeats itself, beginning with a stop of the stepping motor 87 up to Zl, then clockwise up to to Z2 pulses, then stop up to Z3 pulses and finally return to pulse Z4 and subsequent deletion.

The numerical system described allows in every point of the basic program, with others Pre-selections in the periodic winding process also include the other additional facilities, their Functions are described below.

Determination and correction of the fiber strand deposit

The controlled slide path is basically determined by the numerical control. Doing it the mandrel »Γ« turns and the slide

a rotation marked with "C", ie _s a back and forth movement.

The winding factor "W" is then ~ and becomes

chosen and expanded so that "Γ" and "C" have taken on whole numerical values - e.g. B. at a winding factor

1.4

Ίο "

This ensures that the mandrel and slide are exactly the same again after this program has run. d. This means that the following fiber strand now comes to rest on top of the first, creating a "closed" Strand pattern is created.

If the fiber strand is to be placed next to the previous one, the rotary dome 1 must be at Winding a strand pattern in each case around the sirang width, measured in the circumferential direction, continued be (degree of progress). Greater degrees of progress are made by correcting the screening factor, i.e. the Ratio of primary impulses to secondary impulses, which determines the winding angle »oc«, in the Wrapping program added. Smaller degrees of progress and small gaps between the strand patterns or strand overlaps are increased or decreased by increasing or decreasing the holding times of the carriage corrected by the machine in such a way that the controlled slide path is larger or smaller.

A second preselection can be set in the primary counter for this correction of the strand deposit, but this is only effective when the slide is stopped. If z. B. on the first preselection as a sieving factor the number »158« is set, this results in a certain winding angle during the Sled run. If a number »159« is set on the second area code, the result is a somewhat slower one Result of the secondary impulses and thereby a longer slide holding time, which is used as a correction to the strand deposit can be used. So everyone can "158." during the slide movement, but during the Slide stop every "159." primary pulse can be passed on to the secondary counter.

Since it is determined during the slide holding time at which point the fiber strand returns to the cylindrical one If part of the winding mandrel 1 is reached when the slide is reversed, the correction option described the required re-entry point of the strand can be determined very precisely.

Controlled reversing movement of the slide

As already mentioned at the beginning, the slide speed must also be used in the area of the reversal points are reduced so that a maximum slide speed can be permitted without inadmissibly high inertia forces due to the reversal process be effective. For this purpose, the movement of the slide must be uniform up to the point of reversal immediately before the turning point, they are uniformly reduced, i.e. roughly sinoid, down to the value zero, while the subsequent acceleration of the slide does not have to be controlled because it is because of the The inertia of the sled mass itself has a sinoid character.

The influencing of the slide drive provided for the sinoid delay of the slide movement 40 to 54 are carried out by a transducer 102.

which is fastened to the carriage frame 59 by the bracket 103 and is provided with a lever arm 104 which protrudes over a rail 105 which is fastened to the carriage bed 58 in the longitudinal direction. This rail has a stop pin 106 or 107 at both ends, which is adjustably attached to the rail 105 in a slot 108 . The transducer 102 is connected via a line 109 to the amplifier 91 , with which the servo valve is also connected

ίο 41 is electrically connected to control the slide drive.

In the position of the lever arm 104 shown, adjusted from the central position by the angle β to the left, it is assumed that the carriage 2 moves to the left, so that the lever arm 104 executes a pivoting movement to the right when it reaches the stop pin 106. This is transmitted to the measured value transmitter 102 , the electrical values of which are included in the circuit of the setpoint value transmitter 90 and the actual value transmitter 100 or the resistor 91 . As a result, the flow cross-section of the servo valve 41 is steadily reduced, so that the amount of oil supplied to the hydraulic motor 40 and thus the slide speed decrease sinoid to the value zero. The transducer 102 is designed in such a way that the carriage stops when the lever arm 104 is in a position of the lever arm 104 that has been displaced from the central position to the right by the angle β. In this position the transducer 102 has no effect, so that now, according to the periodic program, the pulses reversed to the other direction of rotation of the stepping motor 87 in the servo valve 41 or in the hydraulic motor 40 take effect and move the carriage to the right, these Movement due to the slide mass is also accelerated approximately sinusoidally. Since the lever arm 104 stands at the angle β to the right when it hits the other pin 107, the carriage deceleration is repeated there in the manner described, the lever arm 104 being moved to the left again.

With certain winding tasks or with heavy sledges at high speeds, the delay of the slide movement can be adapted to the prevailing conditions by arranging a control cam (not shown) between the lever arm 104 and the transducer 102, by means of which the delay values are determined in the desired manner .

Delivery of the fiber strand guide suction 62

This is done by the piston rod 67 guided in the hydraulic cylinder 68 , the movements of which are controlled by the servo valve 69 , the start of movement being included in the periodic, electronically controlled winding program. The servo valve 69 is connected to the amplifier 92 via an electrical line 116 , and the electrical line 117 is also connected to the actual value transmitter 81 . The amplifier 92 is also connected via the line 118 to the nominal value transmitter 39, which is influenced by the cam 31 via the parts 32, 33, 34, 35 and 36. The rotation of the cam 31 for the controlled delivery of the fiber strand guide 61 and 62 is initiated by a control pulse which is output at a precalculated point of the carriage movement by the secondary counter 86 and fed via the line 120 to the solenoid valve 24 , which is sent via a pressure line 121 to the from

11 12

the hydraulic unit “//” coming pressure end-face bottoms of the rotating mandrel are connected to the waste line 122 and the holding times of the slide can be shortened with a return line. Since 123 'is provided. By the aforementioned control pulse between the transmission wheels 19, 20, the solenoid valve 24 is switched so that the setting of 1: 2 is provided, the line 23 rotates receives pressure medium, whereby the coupling 5 control shaft 21 during a rotation of the mandrel ment 22 is engaged so that the shaft 21 with the 180 ° by 360 °. So if after a mandrel rotation drive 19, 20 is connected. of about 180 °, which each time for the one-time change

Due to the loops of the mandrel base transferred to the locking disk 25 , the control torque is lifted the locking wedge 27 from the shaft and thus the control parts 25 and 31 a full recess 26 , so that now the locking cam. 29 have performed 10 turns , these parts are available and the cam 31 is rotated. The Dre- again in the starting position shown,
hung of the disk 31 in the direction of the arrow caused by _, ",, ..,
the steadily increasing radius that the slide 33 fiber strand turning device
adjusted downwards and thereby the wheel 36 is rotated around the fiber strand even when the setpoint generator 39 is wrapped around it. This will be able to hang up without twisting about 15 mandrel floors, the amplifier 92, the servo valve 69 adjusted in such a way can the guide eye 62 bearing shaft 74 that, via the line 70 in a steadily increasing amount by the worm gear 75, 76 respectively in the right pressure medium flows into the hydraulic cylinder 68, so level can be pivoted. For this purpose that the rod 67 and with it the guide eye provided a solenoid valve 62 72 which are adjusted by the Leitunzur mandrel center. 20 gen 125 connected to a hydraulic motor 73 and

For exact compliance with the control values, which are sent to the secondary meter 86 via the line 126

from the cam 31 to the target value transmitter 39 is closed. This gives to a precalculated

are transmitted, the infeed movement is the point in time a pulse to the solenoid valve 72,

Fiber strand guide 62 through the rack 78, 79 which thereby the pressure medium supply to the hydraulic

transferred to the gear 80 of the actual value transmitter 81. 25 Motor 73 opens so that it can rotate in a suitable

The electrical values of the two transducers 39 drive the shaft 74 and the guide eye

and 80 are compared in amplifier 92 and 62 pivots about them. After completed frontal

Deviation from the nominal value due to a corresponding strand deposit, the eye 62 will return to the one shown

Corrections in the control of the servo valve are moved back by a further pulse,

considered. 30 whereupon the same process at the other end

When the point P of the disc 31 expires the control role of the rotating mandrel. The angle of rotation of the swivel

32 , the slide 33 is moved in by adjustable stops in both

effect of the weight 37 moved up again, limited directions.

so that now the target value transmitter 39 is reversed. The details shown and described are

Sense acts on the servo valve 69. The hydraulic 35 only meet the basic training and function

As a result, cylinder 68 receives pressure medium via the system, so that within the scope of the invention

device 71, whereby the rod 67 with the guide certain modifications and additions possible

eye 62 are returned to the original position,

will. This concerns z. B. by generating the pulses

After a full revolution of the cam disk 4 ° the impulse 17, which here inevitably with the

31 or the shaft 21, the locking wedge 27 engages again the drive of the rotating mandrel is coupled. Instead of this

into the recess 26 , at the same time a type of end drive, the impulsor could also be through a

switch (not shown) the solenoid valve 24 current pattern shaft are driven. Furthermore it is too

makes go and thus the clutch 22 disengages. conceivable that the impulses by a frequency

·,. ,,, · ^ X,, 45 converter that uses the primary counter

Periodic acceleration of _the Drehdorn- _Pr i _m ärfrequenz fed.

Rotation In addition, the synchronization of the rotation

With the rotation of the control shaft 21 , the catch speed of the dome and the slide also become effective at the same time, the control cam 29 becomes effective and the hydraulic valve 30 is moved through two separate servo circuits in such a way that 50 are guided. Furthermore, with this arrangement, the pressure medium supplied in line 122 also provides the option of stopping the mandrel and only moving the line 124 and the slide via the branch 124 ' so that the winding angle hydraulic motor 12 flows towards it. As a result, the drive α = zero, the index circuit of the rotating mandrel then being accelerated, whereby, as Domes has already carried out by mechanical means, the input can follow 55 during the winding.

1 sheet of drawings

Claims (9)

Patent claims: 1. Device for controlling the winding process on a device for the production of wound Hollow or shell bodies made of fiber-reinforced synthetic resin, with geometrically ordered Fiber layers, the fiber strand being driven by a hydraulic motor The slide on the rotating mandrel can be moved back and forth or around the mandrel and the pitch angle the winding, i.e. the ratio of the mandrel speed to the carriage speed, can be pre-selected is, characterized in that for generating electrical, with the peripheral speed of the rotating mandrel of synchronous pulses, a pulse generator (17) is provided which cooperates with a primary counter (85) which indicates the number of pulses corresponding to the preselection a secondary counter (86) passes on, and that for converting the secondary pulses into mechanical Steps a digital-to-analog converter, essentially consisting of a stepper motor (87), a hydraulic servo valve (88), a hydraulic motor (89) and a setpoint generator (90) is provided, the setpoint generator (90) being functionally connected to a hydraulic motor (40), its angle of rotation in connection with an actual value encoder (100) is a unit of size of the slide path determined at a preferably constant mandrel speed. 2. Device according to claim 1, characterized in that for a parallel to the rotating mandrel axis running fiber strand deposit a special drive (gear 16) of the impulse (17) is provided, which works independently of the mandrel speed, so that only the carriage through the digital-to-analog converter is movable while the stepwise rotation of the mandrel in the End positions of the slide movement can be triggered by preselected secondary pulses. 3. Device according to the preceding claims, characterized in that the primary meter (85) a second preselection that is only effective during the slide stop can be set, which is called Correction of the fiber strand deposit can be used. 4. Device according to the preceding claims, characterized in that in the area the reversal of movement of the carriage, a transducer (102), for example a potentiometer, is arranged is which is actuated by the slide and which with the circuit of the actual value encoder (100), ζ. B. a potentiometer, is electrically coupled for the slide movement. 5. Device according to claim 4, characterized in that the transducer (102) has a lever arm (104) through one in each case attached to the ends of the slide bed (58), in the longitudinal direction adjustable stop pin (106, 107) is actuated by the slide, the transducer (102) is designed so that the carriage in one of the central position around a certain Angle (/?) Misaligned position of the lever arm stops. 6. Device for delivering the fiber strand guide eye to the rotating mandrel, characterized in that that the slide (2) with a known, servo-hydraulically operated, extendable Rod (67) with fiber strand guide eye (62) is provided, whose start and end of movement Part of the periodic, electronically controlled winding program are, with an additional Cam disk (31) is provided, which the positioning of the guide eye (62) via a Setpoint generator, for example a potentiometer (31), controls. 7. Device according to the preceding claims, characterized in that for acceleration and deceleration of the peripheral speed of the rotating mandrel, the corresponding influencing of the hydraulic mandrel drive (12) is electronically controllable depending on the winding program. 8. Device according to claim 7, characterized in that the hydraulic motor (89) of the stepping motor (87) is coupled to a control cam, the shape of which the setpoint generator (90) so controls that a linear or non-linear coordination of the winding carriage to the mandrel movement arises. 9. Device according to claim 8, characterized in that the hydraulic motor (89) of the Stepper motor (87) further control disks are coupled, each of which is a linear or controls non-linear function in the winding program.