EP3336028B1 - Open-end type spinning apparatus and method for unloading a package from an open-end-type spinning apparatus - Google Patents
Open-end type spinning apparatus and method for unloading a package from an open-end-type spinning apparatus Download PDFInfo
- Publication number
- EP3336028B1 EP3336028B1 EP17206699.5A EP17206699A EP3336028B1 EP 3336028 B1 EP3336028 B1 EP 3336028B1 EP 17206699 A EP17206699 A EP 17206699A EP 3336028 B1 EP3336028 B1 EP 3336028B1
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- European Patent Office
- Prior art keywords
- package
- unloading
- open
- forming
- intermediate holding
- Prior art date
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- 238000009987 spinning Methods 0.000 title claims description 66
- 238000000034 method Methods 0.000 title claims description 15
- 230000014759 maintenance of location Effects 0.000 claims description 28
- 238000007383 open-end spinning Methods 0.000 claims description 10
- 230000015572 biosynthetic process Effects 0.000 claims description 7
- 230000003213 activating effect Effects 0.000 claims description 4
- 230000004913 activation Effects 0.000 claims description 4
- 230000009849 deactivation Effects 0.000 claims description 4
- 238000012544 monitoring process Methods 0.000 claims description 2
- 230000001105 regulatory effect Effects 0.000 claims description 2
- 230000000903 blocking effect Effects 0.000 claims 1
- 230000000694 effects Effects 0.000 description 4
- 238000004804 winding Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
Images
Classifications
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01H—SPINNING OR TWISTING
- D01H9/00—Arrangements for replacing or removing bobbins, cores, receptacles, or completed packages at paying-out or take-up stations ; Combination of spinning-winding machine
- D01H9/18—Arrangements for replacing or removing bobbins, cores, receptacles, or completed packages at paying-out or take-up stations ; Combination of spinning-winding machine for supplying bobbins, cores, receptacles, or completed packages to, or transporting from, paying-out or take-up stations ; Arrangements to prevent unwinding of roving from roving bobbins
- D01H9/187—Arrangements for replacing or removing bobbins, cores, receptacles, or completed packages at paying-out or take-up stations ; Combination of spinning-winding machine for supplying bobbins, cores, receptacles, or completed packages to, or transporting from, paying-out or take-up stations ; Arrangements to prevent unwinding of roving from roving bobbins on individual supports, e.g. pallets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H67/00—Replacing or removing cores, receptacles, or completed packages at paying-out, winding, or depositing stations
- B65H67/04—Arrangements for removing completed take-up packages and or replacing by cores, formers, or empty receptacles at winding or depositing stations; Transferring material between adjacent full and empty take-up elements
- B65H67/0405—Arrangements for removing completed take-up packages or for loading an empty core
- B65H67/0411—Arrangements for removing completed take-up packages or for loading an empty core for removing completed take-up packages
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H67/00—Replacing or removing cores, receptacles, or completed packages at paying-out, winding, or depositing stations
- B65H67/06—Supplying cores, receptacles, or packages to, or transporting from, winding or depositing stations
- B65H67/064—Supplying or transporting cross-wound packages, also combined with transporting the empty core
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01H—SPINNING OR TWISTING
- D01H4/00—Open-end spinning machines or arrangements for imparting twist to independently moving fibres separated from slivers; Piecing arrangements therefor; Covering endless core threads with fibres by open-end spinning techniques
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01H—SPINNING OR TWISTING
- D01H4/00—Open-end spinning machines or arrangements for imparting twist to independently moving fibres separated from slivers; Piecing arrangements therefor; Covering endless core threads with fibres by open-end spinning techniques
- D01H4/42—Control of driving or stopping
-
- 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
Definitions
- the present invention relates to an open-end-type spinning apparatus and the method for unloading a package from an open-end-type spinning apparatus.
- the current and universally adopted technique involves setting a predefined length (generally selectable by PC), possibly also differentiated in different sectors of the apparatus (faces or sections) and possibly also for the single head.
- a predefined length generally selectable by PC
- the spinning process is interrupted by stopping the belt feed to the card, and hence the package is lifted so as not to be pulled in rotation by the cylinder, and an intervention request signal is sent to the spinner's patrol trolley.
- the trolley positioned on the head that requires the intervention, opens the package holder arm, unloads the package onto a special package unloading belt, arranged adjacent to the head, and positions on the arm an empty tube on which the yarn produced by the spinner will be wrapped.
- the doffing procedure may not start if the package unloading belt is full: this is because the package that should be doffed could hit another previously unloaded package that is already on the belt.
- Doffing cannot be achieved even if the unloading belt is in motion: in effect, the newly doffed package arrives rolling in an orthogonal direction with respect to the direction in which the belt runs. This sudden change of direction could overturn the package, causing problems for the correct transport of the packages; moreover, the position that the package being unloaded should occupy could be occupied by a package in transit.
- An open-end-type spinning apparatus according to the preamble of claim 1 is known from DE 10 2014 107508 A1 .
- the open-end-type spinning apparatus 4 comprises a plurality of open-end-type spinning heads 8 each comprising an open-end spinning unit 12 and a package winding unit 16, wherein each package winding unit 16 winds on a tube 20 a package 24 of yarn obtained from an underlying spinning unit 12.
- the spinning unit 12 produces yarn which is then wound by a corresponding winding unit 16 on a tube 20 to form a package 24 having a predetermined yarn length.
- the open-end-type spinning apparatus 4 comprises a first series 28 of open-end spinning heads 8, each provided with a forming position 32 for holding a forming package 24', and an unloading position 36 of a formed package 24", separated from the forming position 32.
- the unloading position 36 is a position adjacent to the forming position 32 at which the formed package 24" is substantially removed or ejected from the spinning head 8, i.e. it leaves the spinning head 8.
- Forming package 24' means a package which has not yet reached the predetermined length and which continues to wind yarn produced by the respective spinning unit 12.
- Formmed package 24" means a package which has reached the predetermined length and which may therefore be unloaded from the respective spinning head 8.
- doffing The passage or displacement of the package 24 from the forming position 32 to the unloading position for its replacement with a new empty tube 20 on which to wrap a new yarn is called doffing.
- the open-end-type spinning apparatus 4 further comprises a second series 40 of open-end spinning heads 8, each provided with a forming position 32 for the holding of a forming package 24', and an unloading position 36 of said formed package 24'', separate from the forming position.
- a package unloading belt 44 is provided extending along a longitudinal direction X-X, in a position adjacent to the unloading positions 36 of the formed packages 24".
- the first and second series 28,40 of spinning heads 8 are arranged in rows or faces parallel to each other, along the longitudinal direction X-X, and are spaced from each other by means of said package unloading belt 44.
- said package unloading belt 44 has a width L substantially less than a diameter D of said formed packages 24" and slides to the inside of a transit channel of the formed packages 24", having a slightly greater width than the diameter D of said formed packages 24".
- open-end spinning heads 8 of the first and second series 28,40 are provided with an intermediate holding position 48, between each forming position 32 and each unloading position 36, and respective retention means 52 to selectively block, in said intermediate holding position 48, the formed package 24", regulating the passage thereof to the subsequent unloading position 36.
- the retention means 52 once activated, are able to block the formed package 24" in the intermediate holding position 48, and once deactivated allow the passage of the package 24" from the intermediate holding position 48 to the unloading position 36.
- the retaining means 52 comprise a bar 56 configured to move from a retracted position, wherein it does not interfere with the formed package 24", to an extracted position, wherein it blocks the formed package 24" in said intermediate holding position 48.
- the bar 56 is operatively connected to an actuating cam 60.
- said retention means 52 may comprise rocker or lever systems.
- a single bar 56 is operatively associated with each series 28,40 of spinning heads for the simultaneous retention of the formed packages 24" in the respective intermediate holding positions 48.
- the open-end-type spinning apparatus 4 comprises a plurality of retention means 52, associated with one or more spinning heads 8, operable independently of each other, within the same series 28,40 of spinning heads 8 or on different series 28,40 of spinning heads 8.
- the route which the packages 24 must complete from the forming position 32 to the unloading position 36, passing through the intermediate holding position 48, is preferably facilitated by the provision of chutes 64 in correspondence with said series 28,40.
- the chutes 64 connect said forming positions 32, the intermediate holding position 48 and the unloading position 36 are arranged along a transverse direction T-T, preferably perpendicular to said longitudinal direction X-X.
- said chutes 64 are inclined downwardly, passing from the forming positions 32 towards the package unloading belt 44, so as to facilitate the unloading of the packages 24 and to connect with the latter.
- Such inclination of the chutes 64 must be appropriately established so as not to cause the packages to move too fast or too slow, thus avoiding the risk that some packages, by rubbing on the edges of the chute 64, may stop along the inclined plane.
- the open-end-type spinning apparatus comprises at least one control unit programmed to oversee the operation of the entire apparatus, coordinating the operation of the various spinning heads 8.
- control unit is programmed to:
- control unit is programmed to simultaneously block several formed packages 24" of a same series 28,40 of open-end spinning heads 8, by means of the holding means 52.
- control unit is programmed so as to reach a predetermined number of formed packages 24" on a same series 28,40; the formed packages 24" are released from the respective intermediate holding positions 48, allowing them to simultaneously roll as far as the package unloading belt 44 positioned centrally with respect to the apparatus 4. In this way, it is possible to unload all the formed packages 24" (in a predetermined number) of a specific series 28,40 in unison: in other words, one side or series 28,40 of the apparatus 4 is unloaded at a time.
- control unit is programmed so that once all the formed packages 24" of a series 28,40 are positioned on the package unloading belt 44, the same starts moving and brings all the formed packages 24", or only a predetermined number of them, towards one end of the apparatus 4 from where the formed packages are unloaded.
- control unit is programmed in such a way that, by releasing the intermediate holding positions 48, the retention means 52 are placed in an active position so as to block a new package 24" in the intermediate holding position 48.
- control unit is programmed so that, when the package unloading belt 44 is moving, the retention means 52 remain in the activation position and their deactivation is inhibited to prevent the formed packages 24" from going past the intermediate holding position 48 and being sent to the package unloading belt 44.
- the control unit is programmed so that the forming packages, 24', which during the unloading step of the formed packages 24" from the intermediate holding position should reach a given length, are made to remain in the forming position for a given number of meters of yarn, to then be stopped and unloaded into the intermediate holding position against the retention means 52, which in the meantime will be reactivated.
- control unit is programmed in such a way that the package unloading belt 44, arranged centrally with respect to the apparatus 4, makes at least one complete half turn before beginning the package unloading step. In this way, the control unit ensures that all the formed packages 24" have been unloaded and ensures that it is in an empty belt condition.
- the apparatus allows a method to be obtained for unloading a package comprising the steps of:
- the step is provided to simultaneously block several formed packages 24" of a same series 28,40 of open-end spinning heads 8 using the retention means 52.
- the single spinning head 8 knows when a package 24" produced therefrom has been unloaded and also when the formation of a new forming package 24' has started again: in effect, it is from that moment that the counting of the length begins. Therefore, the control unit, which manages all the spinning units 12, knows how many packages 24" have been deposited in the intermediate holding position 48.
- the formed packages 24" Upon reaching a predetermined number of formed packages 24" on the same series 28,40, the formed packages 24" are released from the respective intermediate holding positions 48, allowing them to simultaneously roll as far as the package unloading belt 44 positioned centrally with respect to the apparatus 4.
- the predetermined number of formed packages 24" arranged in the intermediate holding position 48 on a given series 28,40 will be less than or equal to the total number of spinning heads 8 of the same series.
- the retention means 52 is placed in the active position so as to block a new formed package 24" in the intermediate holding position 48.
- the formed package 24" is removed from the package unloading belt 44 and then from the action radius of the photocell, and the package unloading belt 44 advances again until the next formed package 24" is intercepted by the photocell which stops the package unloading belt 44.
- This operation is repeated until all the formed packages 24" on the package unloading belt 44 are unloaded.
- the retention means 52 When the package unloading belt 44 is moving, the retention means 52 remain in the activation position and their deactivation is inhibited to prevent the formed packages 24" from going past the intermediate holding position 48 and being sent to the same package unloading belt 44.
- the package unloading belt 44 equipped with a system for recognizing the position thereof (for example a slot on the belt and its relative photocell), enables the possibility of starting a cycle by lowering the package stop bar 56 on one of the two series 28,40.
- the new unloading cycle may be activated on each of the two series 28,40, i.e. the two faces of the apparatus 4: alternating therefore is not necessary, since the apparatus with faces or series 28,40 is independent, and thus able to work different counts with very different package formation times, the number of predefined packages for the start of the cycle may also occur several times in succession on the same face or series 28,40.
- the open-end-type spinning apparatus and the method for unloading a package from an open-end-type spinning apparatus according to the invention allow the drawbacks presented in the prior art to be overcome.
- the doffing procedure may not start if the package unloading belt is full: this is because the package that should be doffed could hit another previously unloaded package that is already on the belt.
- Another advantage of the present invention is provided in the fact that a single package unloading belt may be used, while keeping separate the different lots of yarn produced on each side of the spinning apparatus.
- the package unloading belt will not risk being loaded with side-by-side packages and may be emptied without problems.
- the apparatus of the present invention is also economical to produce and to manage.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Spinning Or Twisting Of Yarns (AREA)
- Replacing, Conveying, And Pick-Finding For Filamentary Materials (AREA)
- Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
Description
- The present invention relates to an open-end-type spinning apparatus and the method for unloading a package from an open-end-type spinning apparatus.
- As is known, in automatic open-end-type spinning apparatuses, the current and universally adopted technique involves setting a predefined length (generally selectable by PC), possibly also differentiated in different sectors of the apparatus (faces or sections) and possibly also for the single head. Upon reaching the length or set diameter, the spinning process is interrupted by stopping the belt feed to the card, and hence the package is lifted so as not to be pulled in rotation by the cylinder, and an intervention request signal is sent to the spinner's patrol trolley. The trolley, positioned on the head that requires the intervention, opens the package holder arm, unloads the package onto a special package unloading belt, arranged adjacent to the head, and positions on the arm an empty tube on which the yarn produced by the spinner will be wrapped.
- The known solutions described above have disadvantages and limitations due essentially to the fact that the doffing cycle of the package is constrained to the package unloading step.
- In effect, in known solutions, the doffing procedure may not start if the package unloading belt is full: this is because the package that should be doffed could hit another previously unloaded package that is already on the belt.
- Doffing cannot be achieved even if the unloading belt is in motion: in effect, the newly doffed package arrives rolling in an orthogonal direction with respect to the direction in which the belt runs. This sudden change of direction could overturn the package, causing problems for the correct transport of the packages; moreover, the position that the package being unloaded should occupy could be occupied by a package in transit.
- To overcome these limitations, for example, it is known to make redundant package unloading belts, employing two of them, one for each side of the apparatus, comprising a plurality of spooling heads. In this way, for example, yarn lots are differentiated on each side of the apparatus.
- However, such solution is expensive and does not resolve the problem, since the problem of the constraint between the package doffing and the package unloading step persists on each side of the apparatus.
An open-end-type spinning apparatus according to the preamble of claim 1 is known fromDE 10 2014 107508 A1 . - The need is therefore perceived to resolve the drawbacks and limitations cited with reference to the known art.
- Such requirement is satisfied by an open-end-type spinning apparatus according to claim 1 and by a method for unloading a package from an open-end-type spinning apparatus according to claim 13.
- Further features and advantages of the present invention will become more understandable from the following description of the preferred and non-limiting embodiments thereof, wherein:
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figure 1 is a perspective view of an open-end-type spinning apparatus according to the present invention; -
figure 2 is a perspective view of the detail II offigure 1 ; -
figure 3 is a plan view of the apparatus offigure 1 , from the side of the arrow III offigure 1 ; -
figure 4 is a side view of the apparatus offigure 1 , from the side of the arrow IV offigure 1 ; - -
figure 5 shows the enlarged detail V offigure 4 . - The elements or parts of elements in common between the embodiments described hereinafter will be indicated at the same numerical references.
- With reference to the aforementioned figures, a total schematic view of an open-end-type spinning apparatus according to the present invention is collectively indicated at 4.
- In particular, the open-end-
type spinning apparatus 4 comprises a plurality of open-end-type spinning heads 8 each comprising an open-end spinning unit 12 and apackage winding unit 16, wherein eachpackage winding unit 16 winds on a tube 20 apackage 24 of yarn obtained from anunderlying spinning unit 12. In other words, thespinning unit 12 produces yarn which is then wound by acorresponding winding unit 16 on atube 20 to form apackage 24 having a predetermined yarn length. - In particular, the open-end-
type spinning apparatus 4 comprises afirst series 28 of open-end spinning heads 8, each provided with a formingposition 32 for holding a forming package 24', and anunloading position 36 of a formedpackage 24", separated from the formingposition 32. - The
unloading position 36 is a position adjacent to the formingposition 32 at which the formedpackage 24" is substantially removed or ejected from the spinninghead 8, i.e. it leaves the spinninghead 8. - "Forming package" 24' means a package which has not yet reached the predetermined length and which continues to wind yarn produced by the
respective spinning unit 12. "Formed package" 24" means a package which has reached the predetermined length and which may therefore be unloaded from the respective spinninghead 8. - The passage or displacement of the
package 24 from the formingposition 32 to the unloading position for its replacement with a newempty tube 20 on which to wrap a new yarn is called doffing. - The open-end-
type spinning apparatus 4 further comprises asecond series 40 of open-end spinning heads 8, each provided with a formingposition 32 for the holding of a forming package 24', and anunloading position 36 of said formed package 24'', separate from the forming position. - Between the first and
second series spinning heads 8, apackage unloading belt 44 is provided extending along a longitudinal direction X-X, in a position adjacent to theunloading positions 36 of the formedpackages 24". - Preferably, the first and
second series heads 8 are arranged in rows or faces parallel to each other, along the longitudinal direction X-X, and are spaced from each other by means of saidpackage unloading belt 44. - For example, said
package unloading belt 44 has a width L substantially less than a diameter D of said formedpackages 24" and slides to the inside of a transit channel of the formedpackages 24", having a slightly greater width than the diameter D of said formedpackages 24". - Advantageously, open-
end spinning heads 8 of the first andsecond series intermediate holding position 48, between each formingposition 32 and eachunloading position 36, and respective retention means 52 to selectively block, in saidintermediate holding position 48, the formedpackage 24", regulating the passage thereof to thesubsequent unloading position 36. In other words, the retention means 52, once activated, are able to block the formedpackage 24" in theintermediate holding position 48, and once deactivated allow the passage of thepackage 24" from theintermediate holding position 48 to theunloading position 36. - According to one possible embodiment, the retaining means 52 comprise a
bar 56 configured to move from a retracted position, wherein it does not interfere with the formedpackage 24", to an extracted position, wherein it blocks the formedpackage 24" in saidintermediate holding position 48. - For example (
figure 5 ), thebar 56 is operatively connected to an actuatingcam 60. In general, it is possible to adopt several different retention means 52, all suitable to block the rotation of the formedpackage 24" between theintermediate holding position 48 and theunloading position 36. - For example, said retention means 52 may comprise rocker or lever systems.
- According to a possible embodiment, a
single bar 56 is operatively associated with eachseries packages 24" in the respectiveintermediate holding positions 48. - According to a further embodiment, the open-end-
type spinning apparatus 4 comprises a plurality of retention means 52, associated with one or more spinningheads 8, operable independently of each other, within thesame series spinning heads 8 or ondifferent series spinning heads 8. - The route which the
packages 24 must complete from the formingposition 32 to theunloading position 36, passing through theintermediate holding position 48, is preferably facilitated by the provision ofchutes 64 in correspondence with saidseries chutes 64 connect said formingpositions 32, theintermediate holding position 48 and theunloading position 36 are arranged along a transverse direction T-T, preferably perpendicular to said longitudinal direction X-X. - Preferably, said
chutes 64 are inclined downwardly, passing from the formingpositions 32 towards thepackage unloading belt 44, so as to facilitate the unloading of thepackages 24 and to connect with the latter. - Such inclination of the
chutes 64 must be appropriately established so as not to cause the packages to move too fast or too slow, thus avoiding the risk that some packages, by rubbing on the edges of thechute 64, may stop along the inclined plane. - Preferably, the open-end-type spinning apparatus comprises at least one control unit programmed to oversee the operation of the entire apparatus, coordinating the operation of the
various spinning heads 8. - In particular, said control unit is programmed to:
- monitor the forming step of the package 24' around a
relative tube 20, in said formingposition 32, - activate the actuator means for pushing the formed package to roll on the
unloading chute 64 as far as theintermediate holding position 48, after completing formation of thepackage 24", - activate in advance or simultaneously the retention means 52 to block the formed package in said
intermediate holding position 48, preventing it from reaching thepackage unloading belt 44, - load a new,
empty tube 20 in the formingposition 32 to start forming a new package 24'. - According to one embodiment, the control unit is programmed to simultaneously block several formed
packages 24" of asame series end spinning heads 8, by means of the holding means 52. - Moreover, the control unit is programmed so as to reach a predetermined number of formed
packages 24" on asame series packages 24" are released from the respectiveintermediate holding positions 48, allowing them to simultaneously roll as far as thepackage unloading belt 44 positioned centrally with respect to theapparatus 4. In this way, it is possible to unload all the formedpackages 24" (in a predetermined number) of aspecific series series apparatus 4 is unloaded at a time. - In this way there is no risk of collision between the formed
packages 24" since the formedpackages 24" in asame series package unloading belt 44. - According to one embodiment, the control unit is programmed so that once all the formed
packages 24" of aseries package unloading belt 44, the same starts moving and brings all the formedpackages 24", or only a predetermined number of them, towards one end of theapparatus 4 from where the formed packages are unloaded. - Preferably, the control unit is programmed in such a way that, by releasing the
intermediate holding positions 48, the retention means 52 are placed in an active position so as to block anew package 24" in theintermediate holding position 48. - Preferably, the control unit is programmed so that, when the
package unloading belt 44 is moving, the retention means 52 remain in the activation position and their deactivation is inhibited to prevent the formedpackages 24" from going past theintermediate holding position 48 and being sent to thepackage unloading belt 44. - In effect, if the
formed packages 24" are to roll on thepackage unloading belt 44 while the same is moving, poor positioning of the same packages may occur, which would eventually pile up and become jammed. - The control unit is programmed so that the forming packages, 24', which during the unloading step of the formed
packages 24" from the intermediate holding position should reach a given length, are made to remain in the forming position for a given number of meters of yarn, to then be stopped and unloaded into the intermediate holding position against the retention means 52, which in the meantime will be reactivated. - Moreover, the control unit is programmed in such a way that the
package unloading belt 44, arranged centrally with respect to theapparatus 4, makes at least one complete half turn before beginning the package unloading step. In this way, the control unit ensures that all the formedpackages 24" have been unloaded and ensures that it is in an empty belt condition. - The operation of an open-end-type spinning apparatus according to the present invention will now be described.
- In particular, the apparatus according to the present invention allows a method to be obtained for unloading a package comprising the steps of:
- monitoring the step of forming a package 24' around a
relative tube 20, in the formingposition 32, - activating the actuator means for pushing the formed
package 24" to roll on the unloadingchute 64 as far as theintermediate holding position 48, after completing the formation of thepackage 24", - activating in advance or simultaneously the retention means 52 to block the formed
package 24" in saidintermediate holding position 48, preventing it from reaching thepackage unloading belt 44, - loading a new,
empty tube 20 in the formingposition 32 of a new package to start making a new forming package 24'. - Preferably, the step is provided to simultaneously block several formed
packages 24" of asame series - It is to be noted that the
single spinning head 8 knows when apackage 24" produced therefrom has been unloaded and also when the formation of a new forming package 24' has started again: in effect, it is from that moment that the counting of the length begins. Therefore, the control unit, which manages all the spinningunits 12, knows howmany packages 24" have been deposited in theintermediate holding position 48. - Upon reaching a predetermined number of formed
packages 24" on thesame series packages 24" are released from the respective intermediate holding positions 48, allowing them to simultaneously roll as far as thepackage unloading belt 44 positioned centrally with respect to theapparatus 4. - Obviously, the predetermined number of formed
packages 24" arranged in theintermediate holding position 48 on a givenseries - Once all the formed
packages 24" of aseries package unloading belt 44, the same starts moving and brings all the formed packages, or only a part of them, towards one end of the apparatus from which thepackages 24" are unloaded from theapparatus 4. - Once the intermediate holding positions 48 are free, the retention means 52 is placed in the active position so as to block a new formed
package 24" in theintermediate holding position 48. - When the
bar 56 is in place, approval is given for the movement of thepackage unloading belt 44, which begins to move until the first formedpackage 24" is intercepted by a corresponding photocell placed immediately before the end of the package unloading belt, and stops the movement thereof. - The formed
package 24" is removed from thepackage unloading belt 44 and then from the action radius of the photocell, and thepackage unloading belt 44 advances again until the next formedpackage 24" is intercepted by the photocell which stops thepackage unloading belt 44. - This operation is repeated until all the formed
packages 24" on thepackage unloading belt 44 are unloaded. - When the
package unloading belt 44 is moving, the retention means 52 remain in the activation position and their deactivation is inhibited to prevent the formedpackages 24" from going past theintermediate holding position 48 and being sent to the samepackage unloading belt 44. - Any forming packages 24', which during the unloading step of the packages from the
intermediate holding position 48 reach the required length, are made to continue in the forming position for a given number of meters of yarn, to then be stopped and unloaded in theintermediate holding position 48 against the retention means 52, which in the meantime will be reactivated. - Once a translation has been completed, the
package unloading belt 44, equipped with a system for recognizing the position thereof (for example a slot on the belt and its relative photocell), enables the possibility of starting a cycle by lowering thepackage stop bar 56 on one of the twoseries - It should be noted that the new unloading cycle may be activated on each of the two
series series series - As may be appreciated from the foregoing, the open-end-type spinning apparatus and the method for unloading a package from an open-end-type spinning apparatus according to the invention allow the drawbacks presented in the prior art to be overcome.
- Advantageously, due to the present invention, it is possible to disengage the doffing cycle with respect to the subsequent package unloading.
- Normally, the doffing procedure may not start if the package unloading belt is full: this is because the package that should be doffed could hit another previously unloaded package that is already on the belt.
- The doffing cannot be completed even if the unloading belt is in movement: as soon as the package is doffed, it rolls in an orthogonal direction with respect to the direction wherein the belt runs, this sudden change of direction could overturn the package causing problems for the correct transport of the packages. Moreover, as seen, the position that the unloaded package should occupy could be occupied by a package in transit.
- Another advantage of the present invention is provided in the fact that a single package unloading belt may be used, while keeping separate the different lots of yarn produced on each side of the spinning apparatus.
- Therefore, due to the present invention, in the management of the unloading sequence carried out by the control unit, the package unloading belt will not risk being loaded with side-by-side packages and may be emptied without problems.
- Furthermore, the risk of carrying different types of packages to the end of the belt to the unloading position, with the possibility of mixing different yarns and creating serious damage to the subsequent steps of use of the yarns, is avoided.
- The apparatus of the present invention is also economical to produce and to manage.
- It is also extremely versatile since it does not require the alternation of unloading of the packages from the different series or faces of the apparatus: it is possible to repeatedly unload the packages coming from the same series, for example because the two series work yarns with significantly different counts, which require very different spinning times.
- A person skilled in the art, in the object of satisfying contingent and specific requirements, may make numerous modifications and variations to the open-end-type spinning apparatus and to the methods of unloading a package from an open-end-type spinning apparatus described above, all of which are within the scope of the invention as defined by the following claims.
Claims (18)
- Open-end-type spinning apparatus (4) comprising- a first series (28) of open-end spinning heads (8), each provided with a forming position (32) for the holding of a forming package (24'), and an unloading position (36) of a formed package (24'') having a predetermined length, the unloading position (36) being separate from the forming position (32),- a second series (40) of open-end spinning heads (8), each provided with a forming position (32) for the holding of a forming package (24'), and an unloading position (36) of said formed package (24") separate from the forming position (32),- a package unloading belt (44) positioned between the first and second series (28,40) of spinning heads (8), extending in a longitudinal direction (X-X), in a position adjacent to the unloading positions (36) of the formed packages (24")- wherein the open-end spinning heads (8) of the first and second series (28,40) are provided with an intermediate holding position (48), between each forming position (32) and each unloading position (36), and respective retention means (52) to selectively block, in said intermediate holding position (48), the formed package (24"), regulating the passage thereof to the subsequent unloading position (36),characterized in that said open-end-type spinning apparatus comprises a control unit programmed so that the forming packages (24') which during the unloading step of the formed packages (24'') from the intermediate holding position (48) should reach a given length, are made to continue in the forming position for a given number of meters of yarn, to then be stopped and unloaded into the intermediate holding position (48) against the previously reactivated retention means (52).
- Open-end-type spinning apparatus (4) according to claim 1, wherein the series (28,40) of spinning heads (8) are on rows or faces parallel to each other in the longitudinal direction (X-X), and are spaced by said package unloading belt (44).
- Open-end-type spinning apparatus (4) according to claim 1 or 2, wherein the package unloading belt (44) has a width (L) substantially less than a diameter (D) of said formed packages (24'') and slides inside a transit channel of the formed packages (24"), having a slightly greater width than the diameter (D) of said formed packages (24").
- Open-end-type spinning apparatus (4) according to any of the preceding claims, wherein said retention means (52) comprise a bar (56) configured to switch from a retracted position, wherein it does not interfere with the formed package (24"), to an extracted position in which it blocks the formed package (24'') in said intermediate holding position (48).
- Open-end-type spinning apparatus (4) according to claim 4, wherein the bar (56) is operatively connected to an actuating cam (60).
- Open-end-type spinning apparatus (4) according to any of the preceding claims, wherein said retention means (52) comprise rocker arm or lever systems.
- Open-end-type spinning apparatus (4) according to the claims 4, 5 or 6, wherein each series (28,40) of spinning heads (8) is operatively associated to a single bar (56) for the simultaneous retention of the formed packages (24'') in their respective intermediate holding positions (48).
- Open-end-type spinning apparatus (4) according to any of the claims from 1 to 6, wherein the apparatus comprises a plurality of retention means (52), associated with one or more spinning heads (8), operable independently of each other, within the same series (28,40) of spinning heads (8) or on different series (28,40) of spinning heads (8).
- Open-end-type spinning apparatus (4) according to any of the preceding claims, wherein the series (28,40) of spinning heads (8) comprise respective chutes (64) which connect said forming positions (32), intermediate holding positions (48) and unloading positions (36), said chutes (64) being arranged in a transverse direction (T-T), perpendicular to said longitudinal direction (X-X), wherein said chutes (64) are tilted downwards, passing from the forming positions (32) towards the package unloading belt (44), so as to facilitate the unloading of the formed packages (24") and connect with the latter.
- Open-end-type spinning apparatus (4) according to any of the preceding claims, comprising a control unit programmed to:- monitor the forming step of the forming package (24') around a relative tube (20), in said forming position (32),- activate actuator means for pushing the formed package (24'') to roll on the unloading chute (64) as far as the intermediate holding position (48), after completing formation of the package,- activate in advance or simultaneously the retention means (52) to block the formed package (24'') in said intermediate holding position (48), preventing it from reaching the package unloading belt (44),- load a new, empty tube (20) in the forming position (32) to start making a new forming package (24').
wherein- upon reaching a predetermined number of formed packages (24'') on the same series (28,40), the formed packages (24") are released from the respective intermediate holding positions (48), allowing them to simultaneously roll as far as the package unloading belt (44) positioned centrally with respect to the apparatus (4). - Open-end-type spinning apparatus (4) according to any of the preceding claims, comprising a control unit programmed so that when the package unloading belt (44) is moving, the retention means (52) remain in the activation position and their deactivation is inhibited to prevent the formed packages (24") from going past the intermediate holding position (48) and being sent to the package unloading belt (44).
- Open-end-type spinning apparatus (4) according to any of the preceding claims, comprising a control unit programmed so that the package unloading belt (44), placed centrally with respect to the apparatus (4), is made to make at least one complete half turn from the start of the package unloading step.
- Method of unloading a package from an open-end-type spinning apparatus (4) according to any of the preceding claims, comprising the steps of:- monitoring the forming step of the package in formation (24') around a relative tube (20), in the forming position (32),- activating the actuator means for pushing the formed package (24") to roll on the unloading chute (64) as far as the intermediate holding position (48), after completing formation of the package (24),- activating in advance or simultaneously the retention means (52) to block the formed package (24'') in said intermediate holding position (48), preventing it from reaching the package unloading belt (44),- loading a new, empty tube (20) in the forming position (32) to start a new forming package (24'),wherein the forming packages (24') which during the unloading step of the formed packages (24'') from the intermediate holding position (48) should reach a given length, are made to continue in the forming position (32) for a given number of meters of yarn, to then be stopped and unloaded into the intermediate holding position (48) against the previously reactivated retention means (52).
- Method of unloading a package from an open-end-type spinning apparatus (4) according to claim 13, comprising the step of simultaneously blocking several formed packages (24") of a same series (28,40) of open-end spinning heads (8), using the retention means (52).
- Method of unloading a package from an open-end-type spinning apparatus (4) according to claim 13 or 14, wherein upon reaching a predetermined number of formed packages (24'') on the same series (28,40), the formed packages (24'') are released from the respective intermediate holding positions (48), allowing them to simultaneously roll as far as the package unloading belt (44) positioned centrally with respect to the apparatus (4) .
- Method of unloading a package from an open-end-type spinning apparatus (4) according to any of the claims from 13 to 15 wherein, once all the formed packages (24'') of a series (28,40) are positioned on the package unloading belt (44), this starts moving and brings all the formed packages (24"), or only part of them towards one end of the apparatus (4) from where the formed packages are unloaded (24") from the apparatus (4).
- Method of unloading a package from an open-end-type spinning apparatus (4) according to any of the claims from 13 to 16, wherein once the intermediate holding stations (48) have been emptied, the retention means (52) move into the active position so as to block in the intermediate holding position (48) a new formed package (24").
- Method of unloading a package from an open-end-type spinning apparatus (4) according to any of the claims from 13 to 17, wherein when the package unloading belt (44) is moving, the retention means (52) remain in the activation position and deactivation is inhibited to prevent the formed packages (24'') from going past the intermediate holding position (48) and being sent to the package unloading belt (44).
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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IT102016000127912A IT201600127912A1 (en) | 2016-12-19 | 2016-12-19 | Open-end spinning apparatus and method for unloading a cone from an open-end spinning apparatus |
Publications (2)
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EP3336028A1 EP3336028A1 (en) | 2018-06-20 |
EP3336028B1 true EP3336028B1 (en) | 2019-12-25 |
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EP17206699.5A Active EP3336028B1 (en) | 2016-12-19 | 2017-12-12 | Open-end type spinning apparatus and method for unloading a package from an open-end-type spinning apparatus |
Country Status (3)
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EP (1) | EP3336028B1 (en) |
CN (2) | CN208008986U (en) |
IT (1) | IT201600127912A1 (en) |
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IT201600127912A1 (en) * | 2016-12-19 | 2018-06-19 | Savio Macch Tessili Spa | Open-end spinning apparatus and method for unloading a cone from an open-end spinning apparatus |
CN111847116B (en) * | 2020-07-23 | 2021-11-02 | 国网山东省电力公司武城县供电公司 | Cable placing frame for electric power construction |
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IT1202589B (en) * | 1987-02-27 | 1989-02-09 | Savio Spa | DEVICE AND PROCEDURE FOR THE AUTROMATIC REMOVAL OF THE SPOOLS IN A WINDING MACHINE |
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JP2012057272A (en) * | 2010-09-10 | 2012-03-22 | Murata Mach Ltd | Spinning machine |
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2016
- 2016-12-19 IT IT102016000127912A patent/IT201600127912A1/en unknown
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2017
- 2017-12-12 EP EP17206699.5A patent/EP3336028B1/en active Active
- 2017-12-19 CN CN201721789303.1U patent/CN208008986U/en not_active Withdrawn - After Issue
- 2017-12-19 CN CN201711381904.3A patent/CN108203852B/en active Active
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Also Published As
Publication number | Publication date |
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CN108203852A (en) | 2018-06-26 |
CN108203852B (en) | 2022-08-19 |
CN208008986U (en) | 2018-10-26 |
IT201600127912A1 (en) | 2018-06-19 |
EP3336028A1 (en) | 2018-06-20 |
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