CN101148790A

CN101148790A - Device for a preparatory machine for spinning

Info

Publication number: CN101148790A
Application number: CNA2007101546319A
Authority: CN
Inventors: 迈克尔·施特罗贝尔
Original assignee: Rieter Ingolstadt Spinnereimaschinenbau AG
Current assignee: Rieter Ingolstadt Spinnereimaschinenbau AG
Priority date: 2006-09-21
Filing date: 2007-09-17
Publication date: 2008-03-26
Anticipated expiration: 2027-09-17
Also published as: EP1902990B1; DE102006044682A1; DE502007004178D1; EP1902990A1; CN101148790B; JP5393966B2; JP2008074625A

Abstract

Disclosed is an equipment used for a spinning preparation machine (1) especially for a drawing frame (1) or a carding machine (7), it is used for placing fiber carding bar (FB) with assignalble conveying speed (LG) to supply by a conveying device (6) into a carding bar barrel (K), the equipment (7) has a carding bar barrel bracket (12) and a turntable (10) capable of rotating with turntable speed (DG) circling a rotating shaft (DR) and a carding bar transporting tube (11) for transporting fiber carding bar (FB), wherein the carding bar transporting tube (11) has output open (23), wherein a transmitting system (26) is arranged to the turntable (10), it is designed into when the fiber carding bar (FB) is placed into the carding bar barrel (K), according to assignalble collocation (AP,GP), corresponding to the appointed basic speed (GG) generating the turntable speed (DG) declining temporarily, leading the fiber carding bar (FB) longitudinal tension to minish during the speed declining.

Description

The equipment and the spinning preparation machine that are used for spinning preparation machine

Technical field

The present invention relates to be used for particularly the reel off raw silk from cocoons equipment of frame or carding machine of spinning preparation machine according to claim 1 preamble, be used for and be placed into the sliver tube by the fibre sliver that conveyer is supplied with assignable transfer rate, and relate to spinning preparation machine according to the preamble of claim 17.

Background technology

It is well known in the prior art will being placed in the sliver tube by the fibre sliver that conveyer is supplied with assignable transfer rate under the help of the equipment of this general type.

The fibre sliver that is placed by with the related sliver carrier pipe of turntable around vertical axis rotation; The input port and the rotating shaft of sliver carrier pipe are concentricity, and delivery outlet is with respect to the rotating shaft eccentric setting simultaneously.Sliver tube fastening is arranged to support the sliver tube that will be filled, and this sliver tube is arranged to the opening surface of sliver tube when sliver is placed to turntable.And sliver tube fastening is designed to that the sliver tube stands cycle movement when being filled.Here, " cycle movement " of sliver tube be illustrated in the periodic cycle that the sliver tube is rotated and/or translation and turn back to its initial position.Such motion of sliver tube is different from the motion of the sliver tube under the situation of transposing sliver tube.Because the rotation of turntable and the cycle movement of sliver tube, the delivery outlet of sliver carrier pipe is described to the cycloidal path with respect to the sliver tube.

In order can fibre sliver to be placed in the sliver tube, turntable speed and transfer rate are complementary now with the cycloid pattern.Sliver placed by cycloid (cycloidally) expect because its allows tube to be filled equably, and the permission fibre sliver after from tube, take out easily.

Therefore according to transfer rate, the rotation of turntable is specified and set base speed, and keep it and change up to transfer rate.Have only when transfer rate changes, just according to linearity or nonlinear characteristic curve adjustment base speed.Place mistake if find sliver when changing batch of material (batch), maybe when the geometry of placing changed, characteristic curve itself is just change usually.Yet when placing continuous fibre sliver, appointed characteristic curve is followed continuously, makes the actual speed of turntable always equal base speed.

As general rule, fibre sliver to be placed comprises the particle in the internal structure that only partly is connected to fibre sliver.For example this particle may be the particle of staple fibre or dirt (dirt).As the result when continuous fibre sliver effect power thereon when the equipment of type is placed usually, the part of these particles is separated from the structure of fibre sliver, and the particle of these separation can only get loose with fibre sliver and is fed forward relatedly.

Thereby the shortcoming that produces is, the particle packing that separates from fibre sliver is on the inwall of sliver carrier pipe every now and then.Along with equipment continues operation, these agglomeration of particles are tending towards forming certain size, separate from inwall as discrete particle bag then.When changing the sliver tube of placing fibre sliver, these particle bags separate usually.More generally be that these particle bags (being called " mouse ") are dropped into the sliver tube, thereby pollute the fibre sliver be placed on wherein.This further operation for fibre sliver may have problems.

The accumulation of the particle on sliver carrier pipe inwall also may cause damage to fibre sliver to be placed, particularly when high and very high placement speed.For example, particle packing can cause the incorrect tractive of sliver, or the destruction of the depth of parallelism of fiber.

Therefore, the purpose of this invention is to provide the equipment and the spinning preparation machine that overcome above-mentioned shortcoming and particularly stop the formation of so-called " mouse ", make the high quality fibers sliver to be placed carefully with high and very high speed (particularly being higher than 1000m/min) safety.

Summary of the invention

This task is that independently the equipment and the spinning preparation machine of Patent right requirement feature are finished by having.

The present invention recognizes, compares with the base speed of appointment, and the temporary transient decline of turntable speed has cleaning effect in the sliver carrier pipe, and wherein some particles that got loose from fibre sliver combine and are eliminated before forming the particle bag at them.The appearance of this cleaning effect is the implementation because of the temporary transient decline of turntable speed, and it causes reducing in the short-term of the inner vertically tensioning of fibre sliver, thereby causes the short-term of the diameter of fibre sliver to increase.As a result of, when fibre sliver moved, the total inner surface of sliver carrier pipe was brushed by fibre sliver.

Mysteriously be that the decline of the little percentage of the turntable speed of finding even getting in touch with the extremely short duration also can realize the cleaning effect expected.The decline of also finding turntable speed in this case neither produces damage to fibre sliver, does not also disturb cycloid to place.

For the idea that realizes that this is new, equipment according to the present invention is feature with the transmission system of turntable, and the transmission system of turntable is configured in the mode that reduces turntable speed according to assignable configuration (profile).Here turntable speed is lowered, and fibre sliver continues to be placed in the sliver tube that will be filled simultaneously.Before underspeeding and afterwards, turntable is with the base speed transmission of appointment.

The temporary transient decline of turntable speed simply mode realizes by the transmission of temporary transient interruption to turntable.For example can provide time of one section weak point of supply voltage of the motor of power to produce this interruption by cutting off to transmission.It is possible equally that turntable mechanically separates one section reasonable time from drive motor.This method has been avoided the possibility that motor is a significant slowdown turntable when transmission is interrupted.In this case, the moment and the duration that transmission is interrupted when placing continuation specified in above-mentioned configuration.Therefore in this case, it is made up of the transmission interrupt configuration.

Yet the temporary transient decline of turntable speed also can and thereby be controlled and/or regulate turntable speed and realize by control and/or adjusting transmission speed.In this case, the turntable speed when placing continuation is specified in described configuration.Therefore such configuration can be described as speed configuration.

Though the decline of start-up by hand and execution turntable speed also is possible, if yet transmission system comprises control device is favourable, this control device is used for controlling turntable speed automatically and/or according to the automatically temporary transient transmission of interrupting turntable of above-mentioned transmission interrupt configuration according to the speed configuration of appointment.This control device is advantageously implemented as electronic-controlled installation.

Control device can advantageously be connected to the machine controller on the spinning preparation machine, so that swap data.For example this makes the executive component by this machine controller come operating control device to become possibility.In this case, control device needn't the binding operation device.It also is possible in the machine controller that control device can whole be integrated into.This has further reduced the expense of hardware.

If it is particularly advantageous having memory device to be associated with control device, in this memory device, store at least one predefined aforementioned speed configuration and/or at least one transmission interrupt configuration.This has simplified the operation of control device, because can omit the dull input of making us for the parameter of the reduction turntable speed of the amount that for example descends, the duration of decline, frequency of decline or the like.The speed configuration of expectation or transmission interrupt configuration only need to be read from holder and to be activated.If it is particularly advantageous storing a large amount of configurations that can read according to specific situation and activate here.For example, may save as the configuration of the special change that different fibre slivers, different turntable and/or different sliver tubes prepare.

Though described configuration is determined turntable speed according to the time and/or be possible really to the temporary transient interruption of the transmission of turntable, yet if described configuration depends on that the length of the fibre sliver of being carried is determined turntable speed and/or be favourable to the temporary transient interruption of the transmission of turntable.To this reason is that the become quantity of the particle that gets loose increases according to the length of the sliver of being carried.It also is possible that the length both of time and the fibre sliver that is transferred considers, because the fact of the quantity increase of the particle that gets loose of also may considering in this manner to become when transfer rate increases.

If for given configuration, set the maximum drop-out value of turntable speed with relevant interval with respect to the base speed of appointment, the cleaning effect of expectation is implemented, and not have to produce to the damage of fibre sliver or make fibre sliver obstruction sliver carrier pipe.

If it is particularly advantageous that described configuration comprises repeating sequences.This has simplified the technical descriptioon of described configuration, because only need provide a description the parameter of sequence.Simultaneously, this configuration can be used for any desired time span.

Such sequence of being made up of first and second portion is favourable, and wherein first produces base speed, and second portion produces the decline of turntable speed.Therefore, obtain the configuration of appointment easily, still can realize the cleaning effect expected with this.

In this case, favourable arrangement is, first be appointed as this time durations be less than 300 meters, preferably be less than 200 meters, particularly advantageously be less than 150 meters fibre sliver and be transferred.If first specifies by this way, then have only small quantities of particles to get loose during this period from fibre sliver, as its result, magnitude that decline subsequently only need be lacked and duration provide essential cleaning effect.

For fear of the cycloid pattern of disturb placing, advantageously, second portion is appointed as the duration of this part, be less than 5 meters, preferably be less than 4 meters, particularly advantageously be less than 3 meters fibre sliver and be transferred.

In favourable realization, transmission system be a feature with the clutch that can be controlled by control device.Controllable clutch designs becomes turntable is separated momently from drive motor.Can easily reduce turntable speed by declutching momently now.The momentum of turntable keeps it to rotate, though be the speed to descend.After assignable time, maybe when reaching the turntable speed of appointment, clutch can be meshed once more, makes turntable revert to its base speed rotation.

In another favourable realization, transmission system is in conjunction with the gearbox with controllable gearratio.Control device can be controlled gearratio.Can recently realize temporarily reducing turntable speed by changing transmission now.

Controllable transmission device advantageously has the traction gear of controllable gearratio.For example it can comprise the flat belt transmission with cone pulley or have the V-shape belt transmission that effective diameter can controlled pulley.In order to change gearratio, the flat belt transmission has at least one cone pulley, can move axially flat belt on this pulley.For this purpose, the V-shape belt transmission has a pulley, and two of V-shape belt are moved relative to each other axial dipole field of surface on this pulley.

In yet another embodiment, controllable combined with transmission differential gear, the carriage of this differential gear are connected to can be by the brake of control device control, or is connected to the auxiliary motor by control device control.Carriage is controlled the wheel that enters the differential gear the inside.When turntable with its base speed during by transmission, carriage is controlled by brake or by static auxiliary motor, so that differential gear is operated as static transmission device.In order to reduce turntable speed, can discharge brake and maybe can connect auxiliary motor now.Carriage begins rotation in either case, and therefore turntable speed descend.

In another advantageous embodiments, transmission system is the dedicated transmission that is used for turntable.Here " dedicated transmission " mean without any to other by driving element for example with the transmission of the mechanical connection of transfer equipment or turntable.Dedicated transmission advantageously comprises can be by the motor of control device control rate.This can be connected to turntable by the gear with fixed drive ratio.

Can be designed to fill cylinder or fill rectangular cylinder according to equipment of the present invention.In first kind of situation, the sliver tube can be rotated if it is designed to pass to the sliver tube with rotatablely moving is favourable.In second kind of situation, be favourable on the contrary if it is configured to the vibration translational motion is passed to the sliver tube.The vibration translational motion is also referred to as transverse movement.No matter motion still is to be made up of translation and vibration by rotation, it all is cycle movement, because after the regular hour, the sliver tube is brought back to its initial position.Here term " initial position " refers to the position and the direction of sliver tube.

Spinning preparation machine according to the present invention has at least one according to equipment of the present invention.The advantage of stating of describing is obtained.

Description of drawings

Be described in the drawings the further advantage of the present invention.They show:

Fig. 1: according to the side view of the frame that reels off raw silk from cocoons of current techniques situation.

Fig. 2: turntable with sliver tube in place.

Fig. 3: fiber yarn is pressed the top view of the sliver tube of cycloid placement.

Fig. 4: the fiber tube that the fibre sliver corrugated is placed.

Fig. 5: the sliver tube that fibre sliver is placed brokenly.

Fig. 6: Utopian speed configuration.

Fig. 7: according to the equipment with clutch of the present invention.

Fig. 8: according to the equipment with traction gear of the present invention.

Fig. 9: according to the equipment with differential gear of the present invention.

Figure 10: according to the equipment with dedicated transmission of the present invention.

The specific embodiment

Fig. 1 shows the schematic side elevation of the frame 1 that reels off raw silk from cocoons as an example of spinning preparation machine 1.Fibre sliver FB1, FB2, FB3, FB4, FB5 and the FB6 of frame 1 front of reeling off raw silk from cocoons transmitted together with direction of motion LR on loading bay 2, inlet roller device 3, inlet sensor device 4 and drawing system 5.Fibre sliver FB1, FB2, FB3, FB4, FB5 and FB6 merge to form the single FB of fibre sliver closely by transfer equipment 6 then.They are delivered to equipment 7 with the transfer rate LG of regulation then, with equipment 7 fibre sliver FB are placed among the sliver tube K.

The loading bay 2 that only briefly shows is in conjunction with the first loading bay roller 2a, the first fibre sliver FB1 that the first loading bay roller 2a is arranged in the machine front can be extracted out from the sliver tube K1 that is placed by the frame 1 that reels off raw silk from cocoons, and the second fibre sliver FB2 can extract out from the sliver tube K2 that is placed on deviation post.Comprise the second loading bay roller 2b so that extract the 3rd fibre sliver FB3 out and extract the 4th fibre sliver FB4 out from the 4th sliver tube K4 from the 3rd sliver tube K3.Each is also extracted out the 5th fibre sliver FB5 and the 6th fibre sliver FB6 from the sliver tube that does not also have to show by another loading bay roller that does not here show.In a word, loading bay 2 is designed to provide six fibre slivers simultaneously to inlet roller device 3.Yet, should understand this and only be example, because also can present the sliver tube of the varying number that fibre sliver is provided.

Loading bay 2 also can be designed to it and can be directly accept the fibre sliver of an input from the carding machine of a running, or accepts the fibre sliver that much enters, and its each fibre sliver that enters is from the carding machine of a running.

During with reference to fibre sliver FB1, FB2, FB3, FB4, FB5 and FB6, should not get rid of the possibility that in fact comprises the fibre sliver that has only single fibre sliver or any other quantity when following.

Fibre sliver FB1, FB2, FB3, FB4, FB5 and the FB6 that enters is sent to inlet roller device 3 by sliver conveyer (not shown) from loading bay 2.This comprises three

inlet roller

3a, 3b, 3ab ', it is first power bottom inlet roller 3a, second power bottom inlet roller 3b and unloaded roller 3ab ', moves as the result who contacts with fibre sliver FB1, the FB2, FB3, FB4, FB5 and the FB6 that enter.

Fibre sliver FB1, FB2, FB3, FB4, FB5 and FB6 are transported to inlet sensor device 4 by the inlet guide device that does not illustrate from inlet roller 3.Inlet sensor device 4 is in conjunction with by sensing roller 4a on the rigid bearing and a pair of sensing roller 4a, the 4a ' that form of sensing roller 4a ' movably.Sensing roller 4a ' on sensing roller 4a on the rigid bearing and the mobile bearing can be around its vertical axle rotation, but rotates through 90 ° for they being presented on be shown as on the sketch

map.Sensing roller

4a and 4a ' also are provided with power.

Inlet sensor device 4 is used for the gross mass that the per unit length of fibre sliver FB1, the FB2, FB3, FB4, FB5 and the FB6 that pass through it is together measured in the piecewise.Usually the part of independent measurement has several millimeters length.For the part of each measurement, inlet sensor 4 produces measurement result MW.Measured value MW is used in particular for regulating the frame 1 that reels off raw silk from cocoons.

Drawing system 5 comprises one group of

inlet roller

5a, 5a ' above-mentioned, a group switching

centre roller

5b, 5b ' and one group of

discharging roller

5c, 5c ', 5c ".

Roller group

5a, 5a ', 5b, 5b ', 5c, 5c ', 5c " in

bottom roller

5a, 5b, 5c in mode of on direction of motion LR, increasing from one group of roller to another group rotary speed by transmission.Therefore, fibre sliver FB1, FB2, FB3, FB4, FB5 and FB6 extract regional 5d and mainly extract among the regional 5e in preparation and be drawn out of, preparation is extracted regional 5d and is formed between

inlet roller group

5a, 5a ' and

center roller group

5b, 5b ', mainly extracts regional 5e at

center roller group

5b, 5b ' and

discharging roller group

5c, 5c ', 5c " between formation.

The position of the bottom roller 5a of

drawing system

5,5b, 5c is fixed.On the contrary, the commutation roller 5c of top roller 5a ', 5b ', the 5c ' of rotation and rotation " have can be laterally mobile with respect to traffic direction LR bearing; and

press bottom roller

5a, 5b, 5c, so that allow firmly to catch fibre sliver FB1, FB2, FB3, FB4, FB5 and FB6 by the loading machine device that does not illustrate.The commutation roller 5c of top roller 5a ', 5b ', 5c ' and rotation " so work as fibre sliver FB1, FB2, FB3, FB4, FB5 and FB6 and rotate by being in contact with it through out-of-date.

Conveyer 6 comprises the power discharging roller 9 on funnel 8 and the rigid bearing and is loaded and thereby is pressed against movably power discharging roller 9 ' on the fixing discharging roller 9.Funnel 8 is used for compressing fibre sliver FB1, FB2, FB3, FB4, FB5 and the FB6 of extraction, therefore produces the single FB of fibre sliver closely.Discharging roller 9 and 9 ' is pulled out fibre sliver FB and is measured funnel 8, and further compresses the fibre sliver FB that is produced.Thereby discharge rate LG is determined by the speed of discharging roller 9 and 9 ' rotation.

Be used for that the equipment 7 that fibre sliver FB is placed into sliver tube K comprised the power discharging roller 9 that is installed on the rigid bearing and be loaded and thereby be pressed against movably power discharging roller 9 ' on the fixing discharging roller 9, can be around the axle rotation that shows with dotted line and the turntable 10 and the sliver carrier pipe 11 that be provided with power.

Sliver tube carriage 12 is configured such that it can carry and periodically mobile sliver tube K.For this purpose, it has the tube platform 12 ' that also can also be provided with power around the rotating shaft DR ' rotation that shows with dotted line.Sliver tube carriage 12 with turntable 12 ' of rotation is particularly suitable for having the sliver tube K that is called cylinder of circle cross-section.As plan, when the sliver tube is placed on a platform 12 ' when going up, its opening surface is to the opening of turntable 10.Because the rotating shaft of the rotating shaft DR of turntable 10 and tube platform 12 ' is biasing mutually, if turntable speed DG and discharge rate LG are complementary, fibre sliver is transferred mode with the circle that becomes the cycloid shape by sliver carrier pipe 11, and to be placed among the sliver tube K be possible.If turntable 10 and tube platform 12 ' are with the rotation of identical direction, then fibre sliver FB places with the epicycloid pattern, and if they with opposite direction rotation, pattern is hypocycloidal.

Whenever must fill have rectangular cross section be called the sliver tube of rectangular cylinder the time, usually use the sliver tube carrier machine on the chassis that periodically moves forward and backward, this does not have shown in Figure 1.This provides the vibration translational motion to rectangular cylinder, so sliver is placed to common cycloid circle.

The frame 1 that reels off raw silk from cocoons comprises the machine controller 13 of controlling main motor 14.Main motor 14 comes transmission

transfer roller group

5c, 5c ', 5c by the gear train that does not illustrate " bottom roller 5c, at the discharging roller 9 on the rigid bearing, discharging roller 9 ', turntable 10 and tube platform 12 on mobile bearing.Have the speed of rotation that to regulate by interconvertible parts by main motor 14 direct drive those workpieces, but its maintenance is constant when the frame 1 of reeling off raw silk from cocoons is in operation.For example such interconvertible parts comprise interconvertible gear wheel, interconvertible pulley and/or similar equipment.

In stage before reality is placed into fibre sliver FB among the sliver tube K, make turntable speed DG and transfer rate LG be complementary by selecting and suitable interconvertible parts being installed in turntable driving-chain or discharging roller 9,9 ' the driving-chain.Before operating, carry out this change, for example when changing batch of material, when for example because the geometry of a size that changes tin or turntable 10 when changing the geometry of placement, maybe when definite device is regulated improperly.

When in fact fibre sliver FB was placed among the sliver tube K, on the other hand, the ratio between transfer rate and the turntable speed was constant.In other words, characteristic curve is straight.Interconvertible here parts are chosen as has the transfer rate LG that is planned, the turntable speed DG that equals base speed GG, as its as a result fibre sliver FB place with the cycloid pattern.Test is definite in advance by experiment usually for this base speed.

In addition, main motor 14 is by differential gear 15 transmission

loading bay roller

2a, 2b,

bottom inlet roller

3a, 3b, fixed position sensor roller 4a, movably sensing roller 4a ', inlet roller group 5a, the bottom roller 5a of 5a ' and the bottom roller 5b of

center roller group

5b, 5b '.Because also present constant ratio between its rotary speed by the workpiece of the drawing system 1 of differential gear 15 transmissions, so transmission device shown in using is with respect to

transfer roller group

5c, 5c ', 5c " the rotary speed of the bottom roller 5c rotary speed of regulating the bottom roller 5b of

center roller group

5b, 5b ' be possible.This make change tractive and thereby the mass change of the per unit length of compensation fibre sliver FB1, the FB2, FB3, FB4, FB5 and the FB6 that are supplied be possible.For this purpose, the measurement result MW that is produced by inlet sensor device 4 is sent to machine controller 13.On the basis of measurement result MW, control command is sent to servomotor 16 then, and servomotor 16 acts on differential gear 15 is positioned at the upstream of the regional HV of main extraction with change the rotary speed of workpiece.

Fig. 2 illustrates the detailed expression of turntable 10, and sliver tube K is in its operating position.Turntable 10 comprises platform main body 17, platform support 18 and crooked sliver carrier pipe 11.Sliver carrier pipe 11 is connected on the platform support 18 by cast component 19 in the top, and its lower end is connected to platform main body 17 by cast component 20 simultaneously.

Platform main body 17 has pressure surface 21 in its lower end.Gap AB between pressure surface 21 and the container 10 is done to such an extent that be small enough to make the fibre sliver FB of placement not overflow from container 10.In addition, platform main body 17 has the groove 17 ' that provides for V-shape belt around its circumference, be used for transmission turntable 10.

When equipment 7 according to the present invention is operated, fibre sliver FB enters in the input port 22 the zone sliver carrier pipe 11 parallel with rotating shaft DR, it is diverted there, allow sliver carrier pipe 11 to be placed among the sliver tube K by delivery outlet 23, delivery outlet 23 is placed prejudicially and is positioned in the plane of pressure surface 21 with respect to rotating shaft DR.

Sliver carrier pipe 11 is made up of two that occupy different space planes direct overlapping arcs 24,25.

When fibre sliver FB carries by sliver carrier pipe 11, particularly under high transfer rate LG and associated high turntable speed conditions, inevitably, owing to act on power on the fibre sliver FB, some particles get loose from the fibre sliver FB of homogeneity basically.Fibre sliver FB is subjected to brute force, particularly in the zone of arc 24.The particle that gets loose by this way can for example be made up of staple fibre or dissimilar materials.

The particle that gets loose is tending towards accumulating on the inwall of sliver carrier pipe 11, particularly in the arc in the zone of delivery outlet 23 25.When equipment was operated, these accumulations may form quite large-sized cluster of grains (being called mouse).Cluster of grains like this gets loose from the inwall of sliver carrier pipe 11 sometimes, and can arrive sliver tube K thereafter, and this may throw into question in the processing of further fibre sliver FB.And the particle of these accumulations can damage the fibre sliver FB that is placed.

The geometry of the change by sliver carrier pipe 11 or use low-friction material to avoid the attempt of the formation of mouse to reduce by inwall to sliver carrier pipe 11, but can not overcome this long-standing problem.

Fig. 3 shows the top view of the sliver tube K that is full of fibre sliver FB.If turntable speed is the base speed GG of plan between the resting period of fibre sliver FB, the cycloid shown in can obtaining is placed pattern, and this pattern has the skew VS and the consistent distance A K of sliver post BS apart from the inboard of sliver tube K of consistent placement diameter AD, unanimity.

If turntable speed DG is lower than the base speed of being planned enduringly between resting period, obtains corrugated shown in Figure 4 and place pattern.Except the ripple in fibre sliver FB above-mentioned, it also is useless that sliver post BS directly leans against on the inwall of sliver tube K.

If turntable speed obtains placement pattern shown in Figure 5 greater than the base speed GG that is planned between resting period in addition.Each circle that is placed on does not here have the diameter of placement AD, but the spike of outside sensing is arranged.Skew between adjacent circle changes.Can be clear that skew VS1 is greater than skew VS2.

Fig. 4 and placement pattern shown in Figure 5 are undesirable because when fibre sliver FB when sliver tube K takes out, they often have problems.Therefore note carefully to guarantee that turntable speed DG equals the base speed GG of appointment in the reality.

Essence of the present invention is that the base speed GG compared to appointment temporarily reduces turntable speed DG, and fibre sliver FB continues to be placed among the sliver tube K simultaneously.The present invention therefore viewpoint with main flow till now is obviously opposite, according to this viewpoint, when sliver tube K is filled, must avoid departing from base speed GG at all costs.

According to preassigned speed configuration GP, realized the reduction of turntable speed DG in one embodiment of the invention, Fig. 6 a illustrates example wherein.Speed configuration GP determines turntable speed DG according to the length L FB of the fibre sliver FB that is transferred.Speed configuration GP comprises continuous repeating sequences S.For example the beginning part AB1 of sequence S can be corresponding to the LFB length of 200m.During part A B1, turntable speed equals the base speed GG that planned.The second portion AB2 of sequence S is right after the AB1 of first, and corresponding to the LFB length of for example 2m.Therefore it is quite a lot ofly shorter than part A B1.During part A B2, turntable speed is reduced to the speed AG that is reduced.About 3% decline percentage for example can be set.

Under many circumstances, shown in the example of speed configuration GP in the sliver carrier pipe, can produce sufficient cleaning effect, do not produce any variation and cycloid shown in Figure 3 is placed pattern.Yet depend on material, the thickness of fibre sliver FB and/or dirt content, and the geometry that also depends on equipment 7, and determine that the speed configuration GP of other change also is possible.Can rule of thumb come to determine by suitable test to the optimum GP configuring of any individual cases.The speed configuration GP of small number is enough to cover situation about occurring in the reality relatively.

Fig. 6 b illustrates the example of transmission interrupt configuration AP.Whether transmission interrupt configuration AP specifies transmission system 26 turntable to be worked or whether its effect is interrupted with respect to the length L FB of the fibre sliver FB that is carried.When transmission interrupt configuration AP adopted value 1, this means the base speed GG transmission turntable 10 of transmission system 26 to be planned.Yet if transmission interrupt configuration AP adopted value 0, transmission is interrupted.Then as the result of friction loss, turntable speed DG drops to and is lower than the base speed GG that is planned, and makes turntable speed DG temporarily descend.The transmission interrupt configuration also comprises repeating sequences S, and itself is made up of part A B1 and AB2.

Fig. 7 show according to equipment of the present invention, with and with the interaction of the main motor 14 and the conveyer 6 of machine controller 13, spinning preparation machine.Here transmission system 26 is related with turntable 10, and this allows turntable speed DG according to the temporary transient minimizing of predetermined speed configuration GP with respect to the base speed GG of appointment, and fibre sliver FB continues to be placed among the sliver tube K simultaneously.It combines electronic-controlled installation 27, so that control turntable speed DG automatically.Control device 27 combined memory devices 28 wherein store a large amount of speed configuration GP.When fibre sliver FB was placed, at any one time, in the stored speed configuration one by manual or read automatically and activate.

Main motor 14 by spinning preparation machine 1 provides the transmission to turntable 10.It is connected to turntable 10 by clutch 29 with by unshowned optional linkage.Optionally linkage is mounted to the feasible base speed GG transmission of turntable 10 to be planned when clutch 29 cuts out.The decline of the turntable speed DG that gets in touch with the speed configuration GP that is activated is now by producing in response to opening clutch 29 from the control command of control device 27.Official hour in the past after, after the length of specific fibre sliver FB is transferred or when turntable speed DG drops to specific predetermined value, clutch 29 is in response to from the new control command of control device 27 and closure.This process constantly and is periodically repeated.

Fig. 8 illustrates the further possible embodiment according to equipment 7 of the present invention.Turntable 10 still is by main motor 14 transmissions, but is the gearbox 30 by having controllable gearratio in this case.Controllable gearbox 30 comprises the traction gear that allows to change gearratio.It is in conjunction with the pulley 32 with the operation surface that is used for V-shape belt, and the distance of its relative axle can change.This makes the change V-shape belt become possibility around the radius of belt pulley 32.Equipment 7 is designed to move to axial can be by control device 27 controls.

Fig. 9 illustrates the change of equipment shown in Figure 8.Controllable traction gear is here replaced by differential gear 33.Its power input side is connected to main motor 14, and its power outlet side is connected to turntable 10, and its carriage 34 is connected to auxiliary motor 35, and the speed of auxiliary motor 35 can be by control device 27 controls.Carriage 34 supports the rotation wheel of differential gear 33.When the motion of carriage 34 was prevented from, differential gear 34 was operated as static transmission device.The linkage between main motor 14 and the turntable 10 that does not illustrate is chosen to when carriage 34 is static, and turntable speed DG equals base speed GG.In order to reduce turntable speed DG, control device 27 makes auxiliary motor 35 setting in motions now.This will make carriage 34 beginnings so that the mode that turntable speed is lowered is rotated.

As alternative way, auxiliary motor 35 can be replaced so that carriage 34 is kept in position by controllable brake.Turntable speed DG can be lowered by discharging brake then simply.

Figure 10 illustrates according to further equipment of the present invention, and wherein transmission system 26 is implemented as dedicated transmission.When conveyer 6 and turntable 12 ' continued by main motor 14 transmissions, mechanically independently transmission was provided for turntable 10, comprises the controllable motor 36 that is connected to turntable 10 by the gearbox 37 with fixed drive ratio.Motor 36 is by control device 27 controls.

Shown in the invention is not restricted to and described exemplary embodiment.Change in the Patent right requirement scope is possible at any time.

Claims

1. equipment (7) that is used for spinning preparation machine (1) especially for frame that reels off raw silk from cocoons (1) or carding machine, the fibre sliver (FB) that described equipment (7) is used for supplying with assignable transfer rate (LG) by conveyer (6) is placed into sliver tube (K), described equipment (7) has sliver tube carriage (12), can use described sliver tube carriage (12) carrying and periodically move described sliver tube (K), and have can be with turntable speed (DG) around the turntable (10) of rotating shaft (DR) rotation and the sliver carrier pipe (11) that is used for conveying fiber sliver (FB), wherein said sliver carrier pipe (11) has the delivery outlet (23) that is used to place described fibre sliver (FB), described delivery outlet (23) is provided with respect to described rotating shaft (DR) and prejudicially towards the described sliver tube (K) by described sliver tube carriage (12) carrying, and the base speed (GG) that wherein is suitable for described transfer rate (LG) for described turntable speed (DG) setting, can be placed in the described sliver tube (K) by cycloid by its described fibre sliver (FB), be characterised in that to described turntable (10) transmission system (26) is set, described transmission system (26) is designed to, when described fibre sliver (FB) is continued to be placed in the described sliver tube (K), according to assignable configuration (AP, GP), the temporary transient decline that produces described turntable speed (DG) compared to the base speed (GG) of described appointment is so that vertical tensioning of described fibre sliver (FB) reduces between described speed decrement phase.

2. the described equipment of claim (7) as described above, be characterised in that described assignable configuration (AP, GP) is transmission interrupt configuration (AP) and/or speed configuration (GP), described transmission interrupt configuration (AP) is specified when the temporary transient interruption of placing when continuing the transmission of described turntable (10), and described speed configuration (GP) is specified the described turntable speed (DG) when the placement continuation.

3. the described equipment of claim (7) as described above, be characterised in that described transmission system (26) is in conjunction with control device (27), it advantageously is electronic-controlled installation (27), controlling described turntable speed (DG) automatically according to above-mentioned speed configuration (GP), and/or according to the automatically temporary transient transmission of interrupting described turntable (10) of above-mentioned transmission interrupt configuration (AP).

4. the described equipment of claim (7) as described above, be characterised in that machine controller (13) that described control device (27) can be connected to described spinning preparation machine (1) with swap data, or merge in the machine controller (13) of described spinning preparation machine (1).

5. as the described equipment in one of claim 3 or 4 (7), be characterised in that memory devices (28) is associated with described control device (27), in described memory devices (28), store some a large amount of predefined above-mentioned speed configuration (GP) and/or transmission interrupt configuration (AP) of being preferably.

6. the described equipment of one of claim (7) as described above is characterised in that described above-mentioned configuration (AP, GP) is according to institute's elapsed time or advantageously specify described turntable speed (DG) according to the length of the fibre sliver that is transmitted (FB) and/or to the temporary transient interruption of the transmission of described turntable (10).

7. the described equipment of one of claim (7) as described above, be characterised in that above-mentioned configuration (AP, GP), specify the maximum drop-out value of the described turntable speed of comparing with the base speed (GG) of described appointment (DG), described maximum drop-out value has between 0.5% and 5%, advantageously being between 1% and 4%, particularly advantageously is the value between 1.5% and 3%.

8. the described equipment of one of claim (7) as described above is characterised in that above-mentioned configuration (AP, GP) comprises repeating sequences (S).

9. the described equipment of claim (7) as described above, be characterised in that above-mentioned sequence (S) is made up of first (AB1) and second portion (AB2), provide described base speed (GG) to described first (AB1), described second portion (AB2) is provided the decline of described turntable speed (DG).

10. the described equipment of claim (7) as described above is characterised in that described first (AB1) is designated as to carry and is less than 300m duration of this part, advantageously for being less than 200m, and particularly advantageously be the fibre sliver (FB) that is less than 150m.

11. as claim 9 or 10 described equipment (7), be characterised in that described second portion (AB2) is designated as the duration of this part to carry and be less than 5m,, and particularly advantageously be the fibre sliver (FB) that is less than 3m advantageously for being less than 4m.

12. the described equipment of one of claim (7) is characterised in that described transmission system (26) combination can be by the clutch (29) of described control device (27) control as described above.

13. one of the described equipment (7) of claim as described above is characterised in that described transmission system (26) is in conjunction with can be by the gearbox with controllable gearratio (30) of described control device (27) control.

14. the described equipment of claim (7) as described above, be characterised in that described controllable gearbox (30) is the towing gear (31) with controllable gearratio, the flat belt transmission device that for example has at least one cone pulley, described flat belt can move axially on described cone pulley, or having the V-shape belt transmission device (31) of belt pulley (32), the effective diameter of described belt pulley (32) can be controlled.

15. as claim 13 or 14 described equipment (7), be characterised in that described controllable transmission device (30) comprises differential gear (33), the carriage (34) of described differential gear (33) with can be associated by the brake of described control device (27) control or with can be associated by the auxiliary motor (35) of described control device control.

16. one of the described equipment (7) of claim as described above, be characterised in that described transmission system (26) is implemented as dedicated transmission, described transmission system (26) advantageously comprises the motor (36) that can be controlled its speed by described control device (27), and described motor (36) is connected to described turntable (10) by the transmission device (37) with fixed drive ratio.

17. one of the described equipment (7) of claim is characterised in that described sliver tube carriage (12) is designed to produce rotation or the vibration and the translational motion of described sliver tube (K) as described above.

A 18. spinning preparation machine (1), frame (1) or carding machine particularly reel off raw silk from cocoons, it has conveyer (6), so that fibre sliver (FB) is supplied to the equipment (7) that is used for the fibre sliver (FB) of described supply is placed into sliver tube (K) with assignable transfer rate (LG), be characterised in that described equipment (7) constructs according to one of aforementioned claim.