CN101899730B - Thread trapper device for a spindle of a spinning or thread machine - Google Patents
Thread trapper device for a spindle of a spinning or thread machine Download PDFInfo
- Publication number
- CN101899730B CN101899730B CN201010189342.4A CN201010189342A CN101899730B CN 101899730 B CN101899730 B CN 101899730B CN 201010189342 A CN201010189342 A CN 201010189342A CN 101899730 B CN101899730 B CN 101899730B
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- China
- Prior art keywords
- nipper assembly
- thread nipper
- bearing
- unloading
- thread
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Classifications
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01H—SPINNING OR TWISTING
- D01H1/00—Spinning or twisting machines in which the product is wound-up continuously
- D01H1/14—Details
- D01H1/38—Arrangements for winding reserve lengths of yarn on take-up packages or spindles, e.g. transfer tails
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H65/00—Securing material to cores or formers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2701/00—Handled material; Storage means
- B65H2701/30—Handled filamentary material
- B65H2701/31—Textiles threads or artificial strands of filaments
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Spinning Or Twisting Of Yarns (AREA)
Abstract
The invention relates to a thread trapper device for a spindle of a spinning or thread machine. The thread trapper device comprises a mounting rack for mounting the thread trapper on a spindle and two retainers capable of mutually oppositely moving and for retaining the thread. At least one loading element uses the loading force to close the retainer and at least one unloading element generates the unloading force opposite to the direction of the loading force. The unloading element moves under centrifugal force with rotating spindle. The retainer is opened by the unloading force. One unloading element is attached at least two positions in the thread trapper such that the different unloading forces are generated at positions during defined spindle speed by the unloading element.
Description
Technical field
The present invention relates to a kind of thread nipper assembly of the spindle for spinning machine or twisting machine, there is the installing rack for being installed to by thread nipper assembly on spindle, having two can the holder for clamping yarn of relative motion mutually, there is at least one and make with loading force the loading element that holder is closed, with there is at least one unloading element for generation of the unloading force contrary with loading force direction, wherein unload element to move under centrifugal action when spindle rotates in thread nipper assembly, and holder can be opened by unloading force.
Background technology
Such thread nipper assembly becomes prior art by document WO2007/131562A1.Loading element for clamping yarn is formed by spring in known thread nipper assembly.In this thread nipper assembly, arrange the unloading element of multiple spherical formula, they radially can move and guide in the guiding mechanism of half hull shape formula.The guiding mechanism of ball is configured to make the holder of yarn open and close when ball radial motion.When spindle rotates under operation, ball is subject to the centrifugal force increased with the increase of spindle rotating speed.There is a limit speed, the unloading force produced by ball under this limit speed equals the loading force of spring.When exceeding this limit speed, thread nipper assembly is opened.When spindle is braked, under the speed conditions that oversteps the extreme limit, the centrifugal force of ball is less than the loading force of spring, thus thread nipper assembly closes.The open and close of the holder of thread nipper assembly occurs under same rotating speed.A kind of similar thread nipper assembly is also open by DE19628826A1.
By the known a kind of thread nipper assembly starting described type of WO2007/065703A2, wherein the open and close of holder is carried out under different spindle rotating speeds.And if if can carry out under low spindle rotating speed volume at the bottom of yarn tube after spinning machine or twisting machine are reset yarn still until remain fixed in thread nipper assembly under a high as far as possible spindle rotating speed, so the cop be supported on spindle will be convenient to change, so-called doffing operation.This can realize with the thread nipper assembly of WO2007/065703A2.In the boost phase of spindle, opening of holder is carried out under a high rotating speed, on the contrary, in the decelerating phase of spindle holder close at a low rotating speed under carry out.This performance of thread nipper assembly is the magnet realization by being provided as loading element.Magnet to be loaded movable holder by its suction and clamps yarn thus.Because the suction of magnet reduces widely along with the increase of the distance between holder, therefore opening thread nipper assembly needs very large unloading force, that is needs high spindle rotating speed.
Because when clamping gap and becoming large, magnet suction reduces, therefore chucking power also reduces, and the yarn that clamp is thicker, and the degree that chucking power reduces is larger.But under thick yarn situation, require that there is stronger chucking power in thread nipper assembly because yarn has higher breaking strength just.This external magnet is expensive parts, and they must have high magnetic force and simultaneously must be insensitive to vibration especially in the present case.
Summary of the invention
Task of the present invention is to provide a kind of thread nipper assembly of improvement.
This task is so solved, and namely a unloading element is assigned at least two positions in thread nipper assembly, on this position, can produce different unloading force by unloading element under the spindle rotating speed that can limit.
Because unloading element can apply different unloading force according to the position at it under the spindle rotating speed constant with maintenance limited, a kind of opening under the first spindle rotating speed therefore can be provided and thread nipper assembly closed under the second spindle rotating speed different from the first spindle rotating speed.Because unloading force changes, therefore in thread nipper assembly, do not need magnet.Can than larger under the closed state of holder under the state that the loading force of at least one loading element is opened at holder.The chucking power that can realize thicker yarn is thus greater than the advantage of the chucking power compared with fine yarn.During the operation of replacing cop, also or can twist thread thick yarn and remain in thread nipper assembly securely thus.However, whole loading element can be formed by dog-cheap spring element.
Specify in an advantageous embodiment, the closure state being assigned with holder to a primary importance of unloading element and be assigned with an open mode of holder to a second place of unloading element, wherein can produce a low unloading force by unloading element and in the second place, produce a high unloading force in the holder situation opened in primary importance in closed holder situation.This compare spindle setting and carry out under keeping constant rotating speed.The advantage of this embodiment is, holder is just opened and reopened under low spindle rotating speed in the decelerating phase in spindle boost phase under high spindle rotating speed.The open and close of thread nipper assembly is realized when unloading force and loading force are in balance.Because unloading element can have the position that two produce different unloading force in thread nipper assembly, therefore have two limit speeds, under this limit speed, unloading force and loading force are balances.Advantageously, unload element when exceeding a upper limit rotating speed of spindle and can move to the second place from primary importance to open holder, and unload element when being positioned at the lower limit rotating speed of below described upper limit rotating speed lower than one and can move to primary importance from the second place in order to closed clamp gripping member.Because unloading element is merely able to produce low unloading force in primary importance under the spindle rotating speed limited in advance, therefore oppositely says deductively, need higher spindle rotating speed, enough overcome loading force until unloading force arrives greatly and make holder enter open mode.In the spindle decelerating phase, unload element to be positioned in the second place and correspondingly under identical rotating speed, to produce higher unloading force.Therefore, in the not closed situation of holder, spindle rotating speed can drop to until lower limit rotating speed.Only when lower than lower limit rotating speed, unloading force just causes holder to be closed lower than loading force.
In order to avoid the imbalance on spindle, advantageously on thread nipper assembly side face, arrange multiple unloading element.Preferred unloading element is formed by the centrifugal body that substantially can radially move.Centrifugal body is advantageously formed by ball.
In another embodiment of the present invention, advantageously, be that a centrifugal body is assigned with at least two bearing-surfaces.The primary importance of the first bearing-surface and centrifugal body matches and the second place of the second bearing-surface and centrifugal body matches.Preferably, bearing-surface is positioned on different radiuses, and this radius is limited by bearing-surface and the spacing between center line thread nipper assembly being installed to the installing rack on spindle.Radially move to the second place due to centrifugal body from primary importance and open holder in the case, therefore advantageously, the bearing-surface matched with primary importance is arranged on the radius less than the bearing-surface matched with the second place.
Specify in another embodiment of the present invention, at the axial cross section of thread nipper assembly, there is between the tangent line that contact point between centrifugal body and bearing-surface is done and the center line of installing rack an angle, and be positioned at an existence tangent line on the bearing-surface in small radii, there is between this tangent line and center line of installing rack a little angle and there is a tangent line being positioned on the bearing-surface in relatively large radius, there is between this tangent line and center line of installing rack a large angle.Angle between tangent line and center line determines the unloading force unloading element under identical centrifugal force.The very simple thread nipper assembly of one can be realized by this embodiment, wherein can produce different unloading force by unloading element under the spindle rotating speed limited.Under the quality with centrifugal body is coordinated mutually, can high-low limit rotating speed be made in a very simplified manner by the geometry of bearing-surface and require suitable.Expensive magnet can not be used.The additional installation steps be installed to by magnet in thread nipper assembly can also be cancelled.Therefore thread nipper assembly of the present invention also can manufacture on low expense ground in enormous quantities.
Advantageously, tangent line is on the contact point crossing with center line.Particularly preferably, tangent line is arranged in the plane of the axial cross section of installing rack.The centrifugal force that centrifugal body produces thus can very well convert the unloading force contrary with loading force direction to.Advantageously, described little angle is between 0 ° and 20 °, is particularly preferably in the scope of 5 ° to 10 °.Described large angle is advantageously between 60 ° and 80 °, is particularly preferably in the scope of 60 ° to 75 °.
In another embodiment can advantageously, a bearing-surface be positioned in small radii has a region, and this region to become a little angle at axial cross section with the center wire clamp of installing rack.A bearing-surface be positioned in relatively large radius has a region, and this region to become a large angle at axial cross section with the center wire clamp of installing rack.On axial cross section, the region of linearly extended bearing-surface can manufacture very simply.And the unloading force that centrifugal body produces is constant substantially on the linearly extended region of bearing-surface, thus the impact of manufacturing tolerance on high-low limit rotating speed can be reduced.In the bearing-surface extended point-blank in a region, the angle between bearing-surface and center line just in time to equal on center line and centrifugal body contact point on the bearing surface do between tangent line angle.
In order to ensure that centrifugal body successfully moves diametrically, advantageously, between the bearing-surface in small radii and the bearing-surface in relatively large radius, there is a bearing-surface, the angle between this bearing-surface and center line increases continuously along with the increase of radius.
Can advantageously, a bearing-surface for centrifugal body is arranged on the parts that can be out of shape by the effect of centrifugal force of thread nipper assembly.Centrifugal body and the parts that can be out of shape by the effect of centrifugal force have contact point, and this contact point can be made a tangent line.The advantage of this embodiment is, during spindle boost phase, the angle between tangent line and the center line of installing rack is change.Under low spindle rotating speed, the angle between tangent line and center line is very little, thus can take a high upper limit rotating speed to by this optional feature, and under this upper limit rotating speed, holder is opened.Parts that can be out of shape by the effect of centrifugal force are now preferred is formed by ring for this.The mid point of ring is preferably placed on the center line of installing rack.This ring can be advantageously made up of the material of caoutchouc elasticity.Preferably arrange this ring in this wise, make it not hinder the motion of centrifugal body when chucking power closes.
Of the present invention other advantage and feature obtain by the description of following embodiment.
Accompanying drawing explanation
Fig. 1 is the partial cross axial view with the spindle shown in the amplification of a closed thread nipper assembly,
Fig. 2 is the view of same spindle when thread nipper assembly is opened in Fig. 1,
Fig. 3 is the zoomed-in view of the part represented with III in Fig. 1,
Fig. 4 to Fig. 8 is view similar with Fig. 3 in heteroid thread nipper assembly situation,
Fig. 9 is the view similar with Fig. 3 of a kind of modification structures of thread nipper assembly,
Figure 10 is the sectional view of the section X-X along Fig. 9.
Detailed description of the invention
The spindle 1 of a spinning machine or twisting machine has been shown in Fig. 1.Spindle 1 is made up of the upper-part 2 rotated and non-rotary cartridge housing 3, and cartridge housing is fixed on a step rail do not illustrated still.Upper-part 2 has the axle 4 rotated together, and this axle is bearing in the bearing of journals 5 and an end bearing do not illustrated in cartridge housing 3.Upper-part 2 comprises a wharve 6, and upper-part can be driven by this wharve belt 7.
The top of wharve 6 is provided with thread nipper assembly 8.Thread nipper assembly 8 utilizes installing rack 9 to be installed on spindle upper section part 2.Thread nipper assembly 8 is preferably removably fixed on upper-part 2, to have under problem condition and can easily change.Upper-part 2 can settle a unshowned bobbin above thread nipper assembly 8, and the reel for yarn of production is coiled into yarn bobbin by this bobbin.Winding process is implemented with liftable ring rail in known manner, and ring rail extends on multiple spindle 1 be arranged side by side in the machine.Each spindle 1 arranges an also unshowned ring spinning, and ring spinning goes in ring in a known manner a steel traveler, and it is at run duration twist yarn and by yarn guide yarn bobbin.
Thread nipper assembly 8 is made up of the matrix 10 of sleeve shaped, and this matrix comprises the installing rack 9 for spindle 1.The sleeve 11 that can move axially is mounted with on matrix 10.Matrix 10 and sleeve 11 are arranged a holder 12 and 13 respectively.Holder 12 and 13 comprises clamping face 14 and 15, and they can form the gap 16 of clamping yarn.Yarn to be held is also referred to as " underwinding " (underwinding yarn).The gap 16 of opening between holder 12 and 13 can be seen in fig. 2.Thread nipper assembly 8 comprises the loading element 17 of form of springs.Loading element produces loading force, and the holder 13 on sleeve 11 is pressed to the holder 12 on matrix 10 by it, underwinding can be clamped between clamping face 14 and 15 thus.
Ensure at open and close holder 12 by two guiding mechanisms 41 and 42, the motion of sleeve 11 when 13.In order to make sleeve 11 accurately lead on matrix 10, in the region of holder 13, be provided with the first guiding mechanism.Second guiding mechanism 42 is spaced apart away from the first guiding mechanism 41 ground as far as possible.Guiding mechanism 41 and guiding mechanism 42 are arranged so that loading element 17 and unloading element 18 are positioned at two guiding mechanisms 41, between 42 at axial cross section.In order to make the undesirable imbalance on thread nipper assembly 8 minimize, spring 17 is led by matrix 10 and is centered.
In addition, thread nipper assembly 8 comprises multiple unloading element 18, and it is for generation of the unloading force reverse with loading force.Show two unloading elements 18 in fig 1 and 2.Multiple unloading element 18 can be arranged on the side face of thread nipper assembly 8 evenly distributedly completely.Unloading element 18 is made up of the spherical centrifugal body 19 that can radially be moved substantially.This ball is preferably made of steel.
At clamping element 12,13 be in the closure state shown in Fig. 1 under, unloading element 18 be positioned in a primary importance.In guiding mechanism 20 in matrix 10, centrifugal body 19 is directed to.Centrifugal body 19 is equipped with the first bearing-surface 21.Bearing-surface 21 is arranged on sleeve 11.Under centrifugal action when spindle 1 rotates, ball 19 leans on bearing-surface 21.Bearing-surface 21 and the center line 23 of installing rack 9 press from both sides into a little angle A.By this angle A, ball 19 produces the power acted axially on sleeve 11 along center line 23, and the direction of this power is contrary with the loading force of spring 17.If spindle rotating speed is more than a upper limit rotating speed, the power so applied by ball 19 will exceed the loading force of spring 17, thus sleeve 11 moves towards the direction of wharve 6.By the motion of sleeve 11, clamping element 12,13 open.Ball 19 radially moves in the second place of a relatively large radius in guiding mechanism 20 simultaneously.
Clamping element 12 can be seen in fig. 2, the state of 13 clamping devices 8 when opening.The gap 16 of centrifugal body 19 in the second place and between clamping face 14 and 15 is opened.On this position, centrifugal body 19 is equipped with the second bearing-surface 22 on sleeve 11, has an angle B between it and the center line 23 of installing rack 9.Angle B is greater than angle A.Except the centrifugal force produced in this second place by ball under given spindle rotating speed is slightly comparatively large, because the spacing of ball and rotation 23 is larger, the unloading force that ball 19 acts on sleeve 11 compares much larger in primary importance because angle B is comparatively large.If reduce spindle rotating speed more now, so when low upper limit rotating speed excessively, thread nipper assembly 8 also can not close again, and wherein under upper limit rotating speed, thread nipper assembly 8 is opened.Only sleeve 11 is pushed up upward again being just reduced to this unloading force lower than unloading force during a lower limit rotating speed lower than the degree of the loading force of spring 17 by spring 17.Loading element 17 makes holder 12, and 13 is closed and ball 19 moves in primary importance, see Fig. 1.
Fig. 3 shows the position around as the ball 19 of unloading element 18 again enlargedly.Can see, ball 19 leans on the guiding mechanism 20 of matrix 10 and leans on the bearing-surface 21 of sleeve 11.By the angle A between bearing-surface 21 and center line 23, the contact point 24 between centrifugal body 19 and bearing-surface 21 forms the unloading force contrary with chucking power direction.Bearing-surface 21 has a region extended at axial cross section cathetus.The angle A of bearing-surface 21 is identical with the tangent line that is placed on ball 19 on contact point 24 thus.When thread nipper assembly is opened, ball 19 the second bearing-surface 22 leaned thereon is on the larger radius of ratio first bearing-surface 21.There is between second bearing-surface 22 and center line 23 a large angle B.Angle B is more much bigger than angle A.By this differential seat angle, thread nipper assembly 8 can be opened under high spindle rotating speed, and only just close again under low a lot of spindle rotating speed.
For clarity, according to time sequencing, the process when spindle 1 once with thread nipper assembly of the present invention runs is described again now.During the spinning carried out with the running speed being such as 20000 revs/min or process of twisting thread, thread nipper assembly 8 is opened.Empty in gap 16.Yarn is winding on the bobbin that is positioned on the upper-part 2 of spindle 1.A bobbin full with the bobbin change of sky or full spool change spool operation before, make ring rail move on a position together with rings, insert in gap 16 to make yarn.When this so-called underwinding operation (binding foot) of yarn, the rotating speed of spindle 1 is reduced.If spindle rotating speed is reduced to lower than lower limit, so with regard to closing, underwinding is clamped between clamping element 12 and 13 thread nipper assembly 8.Next make spindle stop and full spool is upwards pulled out from upper-part 2.To keep being clamped in thread nipper assembly 8 from the yarn end of drafter or delivery roller when pulling out full spool and yarn is separated between spool and thread nipper assembly 8.After the bobbin empty by installs on upper-part 2, again start the machine.Between spindle 1 accelerated period, ring rail upwards runs to again a position, yarn is winding to be placed on the bobbin above upper-part 2.If spindle rotating speed is more than a higher limit, so with regard to again opening, the yarn end be clamped in gap 16 is thrown out of thread nipper assembly 8.In order to ensure to run safely and reliably during spool replacement operation, arranging very low by lower limit rotating speed, such as, at the order of magnitude of about 1000 to 2000 revs/min, is favourable.When underwinding is inserted in gap 16, importantly, yarn is in gap 16 really on the one hand, can reliably be clamped, but should not be greater than 360 °, can also split out from holder 12 and 13 easily after yarn end when yarn is wound around the matrix 10 of thread nipper assembly on the other hand.If spindle rotating speed is little as far as possible, so can more accurately with more easily by underwinding Clearance Between Wound 16.Therefore, thread nipper assembly 8 can close under lower limit rotating speed little is as far as possible important.On the contrary, at spindle boost phase, if thread nipper assembly is opened under present upper limit rotating speed is positioned at a high as far as possible limit speed again, such as, under the order of magnitude of 10000 revs/min, be then very favorable.The termination being clamped in the underwinding between holder 12 and 13 reliably remained in thread nipper assembly 8 thus always, until in the enough number of turns of winding on bobbins of sky.The operational failure reduced widely thus and broken yarn.
In order to optimize thread nipper assembly 8 further, the planform of bearing-surface 21 and 22 can be changed.Several favourable modification has been shown in Fig. 4 to 8.
In the modification of Fig. 4, between bearing-surface 21 and bearing-surface 22, there is a position, the angle of this position 25 and center line 23 is between angle A and angle B.By this bearing-surface 25, ball 19 is improved from bearing-surface 21 to the transition of bearing-surface 22.Can be realized by following measures another improvement of the guiding of ball 19, arrange a bearing-surface 26 at the bearing-surface 21 in a minor radius with between the bearing-surface 22 on a large radius, the angle between this bearing-surface and center line 23 becomes large continuously along with the increase of radius.Such rounded bearing-surface 26 is shown in Figure 5.
Figure 6 illustrates a favourable modification, wherein bearing-surface 21 and bearing-surface 22 are bent.A kind of transition mild especially of ball 19 can be realized thus.The position of ball 19 in closed thread nipper assembly situation has been shown in the left part of Fig. 6.The right part of Fig. 6 shows the ball 19 in thread nipper assembly 8 situation opened.In bending bearing-surface 21 situation, the tangent line 27 on contact point 24 and the angle A between it and center line 23 play decisive action to the unloading force produced by ball 19.Even if ball 19 is positioned on bearing-surface 22 when thread nipper assembly 8 is opened, be also played a decisive role by the angle B of the tangent line of on the contact point between ball 19 and bearing-surface 22 28.
Because the bearing-surface 21 and 22 in Fig. 3 to 5 has linearly extended region, therefore the tangent line 27 and 28 of there overlaps with the surface of bearing-surface 21 and 22.In the scope of angle A preferably between 5 ° and 10 °, be particularly preferably about 6 °.Angle B, advantageously in the scope of 60 ° to 75 °, is especially about 65 °.
In modification shown in Fig. 7, bearing-surface 21 has a slight protuberance, the tangent line 27 thus on contact point 24 and have very little angle A between center line 23.Therefore a higher upper limit rotating speed can be realized for opening of thread nipper assembly.
In fig. 8, the sleeve 11 of thread nipper assembly 8 is containing the parts 29 that can be out of shape under centrifugal action.Under thread nipper assembly 8 closure state, centrifugal body 19 bearing-surface 21 leaned thereon is arranged on these deformable parts 29.Tangent line 27 on contact point 24 and also there is between center line 23 a little angle A.Deformable parts 29 are advantageously formed by ring 30.The mid point of ring 30 is positioned on the center line 23 of installing rack.Ring 30 is made up of rubber elastic material.Ring 30 makes thread nipper assembly 8 just open when high upper limit rotating speed.Spindle rotating speed must be high to making ring 30 expand under centrifugal action and make ball 19 can change its position thus.In spindle 1 decelerating phase, deformable parts 29 not stymie 19 move to primary importance from the second place.By correspondingly arranging ring 30, in the form of implementation shown in Fig. 8, even the angle A of tangent line 27 can be reduced to negative value, thus when boost phase starts, centrifugal body 19 strengthens holder 12, the chucking power of 13 and improve the clamping action of thread nipper assembly 8 thus further, especially under slightly thick yarn situation.Increase gradually and ring 30 gradually under spread scenarios at spindle rotating speed, angle A continues to become large, until ball 19 finally moves to exceed ring 30.
In form of implementation shown in Fig. 1 to 8, sleeve 11 is less than the diameter of ball 19 in order to open and close the stroke implemented in the axially-movable in gap 16 at it.If wish now that sleeve 11 has larger stroke or will use less ball 19, so the special matched of guiding mechanism 20 in the matrix 10 of thread nipper assembly 8 of ball 19 is favourable.
Show an embodiment of thread nipper assembly 8 in figures 9 and 10, the stroke of its middle sleeve 11 is greater than the diameter of ball 19.Also the same with the embodiment of Fig. 1 to 8, sleeve 11 is provided with two bearing-surfaces 21 and 22, they have different angle A and B from center line 23 diameter of spindle 1.Bearing-surface 21 and 22 is arranged on one radially in the gripper shoe 51 of inwardly projecting.Gripper shoe 51 protrudes in the groove 52 of matrix 10.Gripper shoe 51 is so arranged, ball 19 is therefrom supported in the heart.The guiding mechanism 20 of ball 19 is structure like this in matrix 10, ball 19 is guided and the view that can be similar to Fig. 2 radially moves to the second place from shown primary importance by two fan-shaped spigot surfaces 53.Spigot surface 53 is partially formed by some of a cylindrical side face.As can be clearly seen in Figure 10, guiding mechanism 20 and bearing-surface 21,22 arrange symmetrically relative to ball center.Ball 19 is very accurately led thus, thus can not block when it radially moves.
The embodiment of the bearing-surface 21,22 shown in Fig. 3 to 8 can certainly be applied in the form of implementation shown in Fig. 9 and 10.
Claims (18)
1. for the thread nipper assembly of the spindle of spinning machine or twisting machine, there is the installing rack for being installed to by thread nipper assembly on spindle, having two can the holder for clamping yarn of relative motion mutually, there is at least one and make with loading force the loading element that holder is closed, with there is at least one unloading element for generation of the unloading force contrary with loading force direction, wherein unload element to move under centrifugal action when spindle rotates in thread nipper assembly, and holder can be opened by unloading force, it is characterized in that, unloading element (18) is assigned at least two positions in thread nipper assembly (8), and different unloading force can be produced according to its position by unloading element (18) under a spindle rotating speed that can limit, wherein, described thread nipper assembly has two bearing-surfaces (21, 22), wherein one is positioned at the upper existence tangent line of bearing-surface (21) in small radii, between the center line (23) of this tangent line and installing rack (9) with an angle (A) and this angle (A) is 0 ° to 20 °.
2. according to thread nipper assembly according to claim 1, it is characterized in that, be assigned with a closure state of holder (12,13) to a primary importance of unloading element (18) and be assigned with holder (12 to a second place of unloading element (18); 13) a open mode, the holder (12 that wherein can closed in primary importance by unloading element (18); 13) a low unloading force is produced in situation and at the holder opened (12 in the second place; 13) unloading force that in situation, generation one is high.
3. according to thread nipper assembly according to claim 1, it is characterized in that, loading force ratio under the open mode of holder (12,13) of at least one loading element (17) is larger under the closure state of holder (12,13).
4. according to thread nipper assembly according to claim 2, it is characterized in that, loading force ratio under the open mode of holder (12,13) of at least one loading element (17) is larger under the closure state of holder (12,13).
5. according to thread nipper assembly according to claim 3, it is characterized in that, whole loading elements (17) is formed by spring element.
6. according to the thread nipper assembly one of claim 1 to 5 Suo Shu, it is characterized in that, unloading element (18) when exceeding a upper limit rotating speed of spindle (1) in order to open holder (12; 13) second place can be moved to from primary importance, and unload element (18) when being positioned at the lower limit rotating speed of below described upper limit rotating speed lower than one in order to closed clamp gripping member (12; 13) primary importance can be moved to from the second place.
7. according to the thread nipper assembly one of claim 1 to 5 Suo Shu, it is characterized in that, multiple unloading element (18) is arranged on the side face of thread nipper assembly (8).
8. according to the thread nipper assembly one of claim 1 to 5 Suo Shu, it is characterized in that, unloading element (18) is formed by the centrifugal body (19) that substantially can radially move.
9. according to thread nipper assembly according to claim 8, it is characterized in that, centrifugal body is formed by ball (19).
10. according to thread nipper assembly according to claim 8, it is characterized in that, is that a centrifugal body (19) is assigned with at least two bearing-surfaces (21; 22).
11., according to thread nipper assembly according to claim 9, is characterized in that, are that a centrifugal body (19) is assigned with at least two bearing-surfaces (21; 22).
12., according to thread nipper assembly according to claim 10, is characterized in that, bearing-surface (21; 22) be positioned on different radiuses, this radius is by bearing-surface (21; 22) and for thread nipper assembly (8) is installed to the installing rack (9) on spindle (1) center line (23) between spacing formed.
13., according to thread nipper assembly according to claim 12, is characterized in that, at the axial cross section of thread nipper assembly (8), at centrifugal body (19) and bearing-surface (21; 22) tangent line (27 that the contact point (24) between is done; 28) and between the center line (23) of installing rack (9) there is an angle (A; B), and be positioned at the upper existence tangent line of the bearing-surface in small radii (21), there is between the center line (23) of this tangent line and installing rack (9) a little angle (A) and be positioned at the upper existence tangent line of the bearing-surface in relatively large radius (22), there is between the center line (23) of this tangent line and installing rack (9) a large angle (B).
14. according to thread nipper assembly according to claim 12, it is characterized in that, the bearing-surface (21) be positioned in small radii has a region, this region presss from both sides into one first jiao (A) with the center line (23) of installing rack (9) at axial cross section, the bearing-surface (22) be positioned in relatively large radius has a region, this region presss from both sides into one second jiao (B) with the center line (23) of installing rack (9) at axial cross section, wherein, first jiao (A) is less than second jiao (B).
15. according to thread nipper assembly according to claim 12, it is characterized in that, be positioned at the bearing-surface in small radii (21) and be positioned at an existence bearing-surface (26) between the bearing-surface (22) in relatively large radius, the angle between the center line (23) of this bearing-surface and installing rack (9) increases continuously along with from described small radii to the increase of the radius in described relatively large radius.
16. according to thread nipper assembly according to claim 10, it is characterized in that, a bearing-surface (21) for a centrifugal body (19) is arranged on a parts that can be out of shape by the effect of centrifugal force (29) of thread nipper assembly (8).
17., according to thread nipper assembly according to claim 16, is characterized in that, the parts (29) that can be out of shape by the effect of centrifugal force are formed by ring (30).
18., according to thread nipper assembly according to claim 17, is characterized in that, described ring (30) is made up of the material of caoutchouc elasticity.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE200910023644 DE102009023644A1 (en) | 2009-05-25 | 2009-05-25 | Thread clamping device for a spindle of a spinning or twisting machine |
| DE102009023644.9 | 2009-05-25 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101899730A CN101899730A (en) | 2010-12-01 |
| CN101899730B true CN101899730B (en) | 2015-06-24 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010189342.4A Active CN101899730B (en) | 2009-05-25 | 2010-05-25 | Thread trapper device for a spindle of a spinning or thread machine |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP2256238B2 (en) |
| JP (1) | JP2010270430A (en) |
| CN (1) | CN101899730B (en) |
| DE (1) | DE102009023644A1 (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102008058655B4 (en) | 2008-11-22 | 2019-01-10 | Saurer Spinning Solutions Gmbh & Co. Kg | clamping device |
| DE102011076744A1 (en) * | 2011-05-31 | 2012-12-06 | Maschinenfabrik Rieter Ag | Thread clamping device for a spinning or twisting spindle |
| DE102013020470A1 (en) * | 2013-12-03 | 2015-06-03 | Saurer Components Gmbh | Clamping device for clamping a thread on a spindle of a spinning or twisting machine and spinning or twisting machine |
| CN108138385B (en) * | 2015-11-06 | 2020-12-04 | Ate私有企业有限责任公司 | Clamping device in winding and method for clamping yarn |
| DE102017103754A1 (en) * | 2017-02-23 | 2018-08-23 | Maschinenfabrik Rieter Ag | Clamping device, spindle with a clamping device and method for producing a clamping device |
| CN111676555A (en) * | 2020-06-08 | 2020-09-18 | 山东祥瑞祥纺织有限公司 | Application of variable count in automatic doffing link of yarn with density of more than 59tex |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19628826A1 (en) * | 1996-07-17 | 1998-01-22 | Lieser Gmbh Beteiligungsgesell | Clamp unit for yarns for spindles |
| DE19746819A1 (en) * | 1997-10-23 | 1999-04-29 | Novibra Gmbh | Control of under-winding of waste on self-cleaning ring spindle |
| DE102006022484A1 (en) * | 2006-05-13 | 2007-11-15 | Texparts Gmbh | clamping device |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0315562Y2 (en) * | 1988-08-31 | 1991-04-04 | ||
| JPH10140427A (en) * | 1996-11-05 | 1998-05-26 | Howa Mach Ltd | Method for stopping ring spinning frame and ring spinning frame |
| IT1299011B1 (en) * | 1997-06-06 | 2000-02-07 | Novibra Gmbh | SPINDLE FOR A RENDER OR RING MACHINE |
| JP2001316948A (en) * | 2000-05-11 | 2001-11-16 | Howa Mach Ltd | Method for stopping ring spinning loom and ring spinning loom |
| DE102005061043A1 (en) * | 2005-12-08 | 2007-06-14 | König, Günter | Thread clamping device for underwinding threads on spindles of a ring spinning or ring twisting machine |
| DE102008058655B4 (en) * | 2008-11-22 | 2019-01-10 | Saurer Spinning Solutions Gmbh & Co. Kg | clamping device |
-
2009
- 2009-05-25 DE DE200910023644 patent/DE102009023644A1/en not_active Withdrawn
-
2010
- 2010-04-26 EP EP10004384.3A patent/EP2256238B2/en active Active
- 2010-05-19 JP JP2010114891A patent/JP2010270430A/en active Pending
- 2010-05-25 CN CN201010189342.4A patent/CN101899730B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19628826A1 (en) * | 1996-07-17 | 1998-01-22 | Lieser Gmbh Beteiligungsgesell | Clamp unit for yarns for spindles |
| DE19746819A1 (en) * | 1997-10-23 | 1999-04-29 | Novibra Gmbh | Control of under-winding of waste on self-cleaning ring spindle |
| DE102006022484A1 (en) * | 2006-05-13 | 2007-11-15 | Texparts Gmbh | clamping device |
| CN101437741A (en) * | 2006-05-13 | 2009-05-20 | 欧瑞康阿库泰斯泰斯博斯德国公司 | Clamping device |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102009023644A1 (en) | 2010-12-02 |
| EP2256238B1 (en) | 2014-05-07 |
| EP2256238B2 (en) | 2018-11-14 |
| JP2010270430A (en) | 2010-12-02 |
| EP2256238A1 (en) | 2010-12-01 |
| CN101899730A (en) | 2010-12-01 |
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