• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    A forming device (1) of a lap (L) for a stirrer comprises a primary calender (22), a secondary calender (24) and a carriage (41) provided with plates (42), translatable to accompany the lap in training . Cylinder-piston assemblies (50) are provided to keep the lap in formation in forced contact against the two calenders (22, 24) and to keep the lap (L) over the calenders (22, 24) suspended during a formation stop. The loading means and the unloading means comprise double-acting cylinder-piston units (50), each connected to the respective plate (42).
    公开号:CH708022B1
    申请号:CH01371/14
    申请日:2013-02-13
    公开日:2016-09-30
    发明作者:Prandini C/O Marzoli S P A Girolamo；Soliani C/O Marzoli S P A Luca
    申请人:Marzoli Machines Textile Srl；
    IPC主号:
    专利说明:

    [0001] The subject of the present invention is a device for forming the lap for machines for processing fiber ribbons, for example for a stirrer.
    [0002] A fiber processing plant provides for the processing of the fiber, usually starting from the fiber in flakes, to obtain a thread.
    [0003] Numerous machines make up the plant. While carding machines make it possible to obtain fiber web, in a tuner, located downstream of the carding machines, a plurality of webs are stretched and joined together, forming a web, then wound on a tube to form a lap in a device. training.
    [0004] Examples of embodiments of lap-forming devices are described in International Applications WO 2011/077 267, WO 2011/073 831, WO 2012/011 055, in the name of the Applicant.
    [0005] The sheets are then sent to the combing machines and the tape produced by these starting from the strips is sent to drawing frames, spindle benches and spinning machines, for the formation of belts, roving and wire bobbins respectively.
    [0006] It is of great importance to be able to make regular slides containing processing times, so as to increase the productivity of the plant.
    [0007] The object of the present invention is to provide a lap forming device, in particular for a stirrer, capable of preserving the regularity of the shape of the laps.
    [0008] This object is achieved by a device for forming the lap realized in accordance with claim 1.
    [0009] The characteristics and advantages of the forming device according to the present invention will be evident from the description given below, given by way of non-limiting example in accordance with the attached figures, in which:fig. 1 <SEP> shows a diagram of a device for forming the lap of a stirrer, according to the present invention, in accordance with a preferred embodiment;the fig. 2 to 5 <SEP> show a sequence of the work steps of the lap forming device; isfig. 6 <SEP> shows a diagram of a pneumatic circuit of the lap forming device.
    [0010] According to the invention, a spinning preparation machine, for example for processing fiber ribbons or a fabric, such as a stirrer, comprises a lap forming device 1.
    [0011] The device 1 has an entry zone 2 for the entry of a web W, coming from apparatuses upstream of the device 1, for example from ironing and assembly apparatuses of the stirrer.
    [0012] Preferably, the device 1 comprises a feed assembly 4 for receiving the incoming cloth W in an inlet direction IN and the deviation.
    [0013] For example, the feeding unit 4 comprises a plurality of guide cylinders, for example a lower cylinder 4a and an upper cylinder 4b, between the side surfaces of which passages are made which define a feeding path for the canvas W.
    [0014] The liner L is formed by the cloth W wound around a tube T, preferably perforated on the surface.
    [0015] The device 1 further comprises a pair of calenders, for example motorized, preferably with a fixed axis of rotation, for forming the liner L. When the lapping cycle is started, the tube T rests against the two calenders.
    [0016] In particular, the device 1 comprises a primary calender 22, having a primary diameter Dp, and a secondary calender 24, having a secondary diameter Ds. Preferably, the primary diameter Dp is smaller than the secondary diameter Ds.
    [0017] Preferably, moreover, the device 1 comprises an auxiliary belt 40 which forms a closed path and is at least partially wound around the primary calender 22, remaining in contact with the tube T and then with the lap being formed.
    [0018] The device 1 further comprises guide means adapted to guide the winding of the cloth on the tube.
    [0019] Said guide means comprise a carriage 41 comprising a pair of plates 42, arranged spaced along the axis of rotation of the calenders 22, 24, so as to delimit a zone between them.
    [0020] The plates 42 can be translated along a straight carriage axis Y, generally inclined with respect to the vertical, to follow and guide the lap in formation.
    [0021] Preferably, the carriage comprises centering means provided on the plates 42, to hold the tube in a predefined position relative to said plates; generally, the plates 42 are circular plates and said centering means define a tube axis, coinciding with the central axis of said plates.
    [0022] Preferably, moreover, the plates 42 comprise suction means adapted to interact with the tube T supported by the calenders 22, 24 to create a depression on the surface thereof.
    [0023] The carriage 41 is therefore suitable for passing from an initial configuration, in which the plates are in a lowered limit position, to a final configuration, in which the plates are translated along the carriage axis Y with respect to the lowered limit position , and occupy a raised limit position.
    [0024] Furthermore, the forming device 1 comprises lap loading means adapted to keep the lap in formation in forced contact against the two calenders, so as to increase the compaction of the winding cloth on the tube.
    [0025] According to a preferred embodiment, said loading means comprise two cylinder-piston assemblies 50, each connected to the respective plate 42, adapted to influence the plates towards the lowered limit position during the formation of the lap, in any case allowing the lifting of the plates, so that the wrapping of the cloth to the tube is very compact.
    [0026] According to the illustrated variant, the cylindropistone units 50 are suitable for pulling the plates towards the lowered limit position during the formation of the lap.
    [0027] Furthermore, the device 1 comprises discharge means suitable for keeping the lap L in formation over the calenders 22, 24 suspended during a stop of the formation of the lap.
    [0028] According to a preferred embodiment, said unloading means still comprise the two double-acting cylinder-piston groups 50, fed to influence the plates towards the raised limit position, so as to keep the lap in formation suspended above the calenders.
    [0029] According to the illustrated variant, the cylinder-piston assemblies 50 are adapted to push the plates towards the raised limit position during the stop of the formation of the lap.
    [0030] The forming device 1 comprises an actuation circuit 60, preferably pneumatic, for the controlled supply of the cylinder-piston units 50.
    [0031] The actuation circuit 60 comprises a valve 62, for example a solenoid valve, for supplying the two cylinder-piston groups 50 as loading means or alternatively for discharging means.
    [0032] For example, said valve is a bistable valve, which has two working positions A, B and a central resting position C.
    [0033] In the first working position A, the loading means are operated, i.e. the two cylinder-piston assemblies are fed so as to push the lap towards the calenders; in the second working position B, the unloading means are operated, i.e. the two cylinder-piston units are fed so as to overcome the weight of the lap and of the carriage and keep the lap suspended on the calenders.
    [0034] The forming device 1 further comprises management means adapted to actuate the loading means and the unloading means according to the needs.
    [0035] Preferably, the management means detect a machine stop signal during the formation of the lap and control the discharge means by means of a discharge actuation signal. Moreover, the management means detect a running signal during the formation of the lap and control the loading means by means of a load actuation signal.
    [0036] Preferably, moreover, the management means comprise a timer which determines the duration of operation of the unloading means; preferably, moreover, said timer is adapted to send a variable timing signal according to the state of formation of the lap, so that, in particular, the actuation interval of the discharge means is more durable the more advanced the formation of the batt.
    [0037] In other words, the cylinder-piston assemblies, during the lifting of the lap, operate for an interval of time the longer the more the lap is in an advanced state of formation and therefore the more they lift it with respect to the calenders. Therefore, near the end of the formation of the lap, its lifting will be considerable, while near the beginning of the training, the lifting will be reduced.
    [0038] The forming device 1 is suitable for performing a training cycle for the formation of the lap L.
    [0039] According to an initial phase of the cycle (fig. 2), the device 1 is in an initial configuration in which the tube T is supported by the two calenders 22, 24, the carriage is in the initial configuration, the means are activated suction, to create a depression through the holes present on the surface of the tube T, to attract the cloth W to the tube T and the cloth W begins to wind around the tube T.
    [0040] In accordance with a step of forming the lap (Fig. 3), the web W continues to wind around the tube and the plates 42 move progressively along the carriage axis Y, to accompany the lap L in formation.
    [0041] During the training phase, the loading means of the lap are activated. In other words, the lap is influenced towards the calenders, i.e. pushed towards the calenders by the cylinder assemblies 50, so that the cloth wraps compactly. The valve 62 is active in the first working position A.
    [0042] Before the end of the formation of the lap, it is possible for the machine to come to a standstill, for example due to breaking of the winding fabric.
    [0043] In these conditions (Fig. 4), the loading means are deactivated and the unloading means are activated, so that the weight of the carriage and the weight of the car do not weigh on the lap, deforming it.
    [0044] In other words, the cylinder-pressure units 50 reverse their action and bring the lap to be suspended on the calenders, overcoming the weight of the lap and the wagon. The valve 62 is active in the second working position B.
    [0045] Once the stop has been completed, the unloading means are deactivated and the loading means are reactivated (Fig. 5), so that the lap rests again and is forcibly pushed against the calenders 22, 24, and the formation of the lap resumes, until to reach a length of wound canvas (or a weight) close to the final desired length.
    [0046] Innovatively, the forming device according to the present invention makes it possible to obtain very regular laps in the form, since it allows to obviate the deformation due to the machine stopping.
    [0047] In fact, in traditional machines, the stop determines an ovalization of the lap, due to the weight of the lap and the weight of the wagon which remains hanging on the lap itself, supported by the calenders.
    [0048] It is clear that a person skilled in the art, in order to satisfy contingent needs, could make modifications to the forming device described above, all contained within the scope of protection as defined by the following claims.
    权利要求:
    Claims (14)
    [1]
    1. Formation device (1) of a lap (L), consisting of a cloth (W) wound on a tube (T), for a spinning preparation machine, for example a stirrer, comprising:- a primary calender (22) and a secondary calender (24) for supporting the lap (L) in formation;- a carriage (41) provided with plates (42) arranged side by side axially with the calenders, translatable along a carriage axis (Y) to accompany the lap in formation;- load means of the lap suitable to keep the lap in formation in forced contact against the two calenders (22, 24); is- unloading means of the lap suitable for keeping the lap (L) over the calenders (22, 24) suspended during a training stop,in which the loading means and the discharge means comprise double-acting cylinder-piston units (50), each connected to the respective plate (42).
    [2]
    2. Device according to claim 1, wherein the loading means and the unloading means can be activated alternately.
    [3]
    3. Device according to any one of the preceding claims, comprising a pneumatic drive circuit (60) for the controlled supply of the cylinder-piston assemblies (50).
    [4]
    4. Device according to claim 3, wherein the actuation circuit (60) comprises a solenoid valve (62) which has two working positions (A, B) and a rest position (C).
    [5]
    5. Device according to any one of the previous claims, comprising management means suitable for operating the loading means and the unloading means and suitable for detecting a machine stop signal during the formation of the lap to deactivate the loading means and activate the means of drain.
    [6]
    6. Device according to claim 5, wherein the management means are adapted to detect a start signal during the formation of the lap and to deactivate the discharge means and activate the loading means.
    [7]
    7. Device according to claim 5 or 6, wherein the management means comprise a timer suitable for determining the duration of operation of the unloading means.
    [8]
    8. Device according to any one of the preceding claims, in which the primary calender (22) has a smaller diameter than that of the secondary calender (24).
    [9]
    9. Device according to any one of the preceding claims, comprising an auxiliary belt (40) which forms a closed path and is at least partially wound on the primary calender (22).
    [10]
    10. Device according to any one of the preceding claims, in which the carriage comprises centering means on the plates (42) to hold the tube in a predefined position relative to said plates.
    [11]
    11. Device according to any one of the preceding claims, in which the carriage comprises suction means adapted to interact with the tube T supported by the calenders (22, 24) to create a depression on the surface thereof.
    [12]
    12. Formation method on calenders (22, 24) of a lap (L) constituted by a belt (W) wound on a tube (T), comprising, during a halt of the formation, the step of keeping the lap suspended above the calenders by means of cylinder-pressure units.
    [13]
    13. Method according to claim 12, in which, during the formation of the lap, the loading means forcefully keep the lap in contact against the calenders.
    [14]
    14. Method according to claim 13, wherein, once the formation has stopped, the lap is brought back into forced contact against the calenders by the loading means.
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    同族专利:
    公开号 | 公开日
    ITBS20120039A1|2013-09-13|
    BR112014022511B1|2021-05-25|
    CN104220655B|2017-10-03|
    DE112013001394T5|2014-12-04|
    WO2013136200A1|2013-09-19|
    CN104220655A|2014-12-17|
    IN2014MN01747A|2015-07-03|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    CH182356A|1935-07-30|1936-02-15|Rieter Joh Jacob & Cie Ag|Device for forming laps from fibrous materials.|
    US2686014A|1950-06-05|1954-08-10|Rieter Joh Jacob & Cie Ag|Method and device for producing laps from textile fibers|
    GB1150651A|1965-02-16|1969-04-30|Tmm Research Ltd|Improvements in Textile Lap Forming and Doffing Apparatus|
    US4025009A|1975-01-20|1977-05-24|Johns-Manville Corporation|Blanket or sheet winding apparatus|
    DE4338283A1|1993-11-10|1995-05-11|Schlafhorst & Co W|Textile machine producing cross-wound bobbins|
    US6834824B1|1999-03-16|2004-12-28|Black Clawson Converting Machinery, Inc.|Continuous winder and method of winding slit rolls of large diameter on small diameter cores|
    CN201180170Y|2007-11-08|2009-01-14|山西鸿基科技股份有限公司|Coiling apparatus for cotton roll|
    CN201588022U|2009-09-23|2010-09-22|杭州世帛时尚家纺有限公司|Pneumatic circuit system of lap forming machine|
    IT1396879B1|2009-12-17|2012-12-20|Marzoli Combing & Flyer S P A|TRAINING DEVICE OF BELT-FITTED TELEPHONE|
    IT1397053B1|2009-12-24|2012-12-28|Marzoli Combing & Flyer S P A Ora Marzoli S P A|FORMULATION SYSTEM OF THE LOOP FOR MACHINES FOR THE PROCESSING OF FIBER RIBBONS, FOR EXAMPLE FOR A STIRRUPTOR.|
    IT1401066B1|2010-07-23|2013-07-12|Marzoli Combing & Flyer S P A Ora Marzoli S P A|LAPTOP DEVICE FOR A STRAINER|
    IT1401269B1|2010-08-06|2013-07-18|Marzoli Combing & Flyer S P A Ora Marzoli S P A|SUPPORT UNIT FOR CALENDER OF A TRIMMING DEVICE FOR A TEXTILE MACHINE, IN PARTICULAR FOR AN IRRUNNER|
    CN201873361U|2010-10-19|2011-06-22|泳立机械有限公司|Adjustable rolling mechanism of high-load cloth rolling machine|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    IT000039A|ITBS20120039A1|2012-03-12|2012-03-12|LAPTOP DEVICE FOR A STRAINER|
    PCT/IB2013/051169|WO2013136200A1|2012-03-12|2013-02-13|Lap forming device for a lap-winding machine|
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