CN102282300B

CN102282300B - Lap-forming device for machines manufacturing fibre webs, such as a lap-winder

Info

Publication number: CN102282300B
Application number: CN200980154904.7A
Authority: CN
Inventors: 吉罗拉莫·普兰迪尼; 罗伯托·托尔科利
Original assignee: Marzoli SpA
Current assignee: Marzoli SpA
Priority date: 2008-12-19
Filing date: 2009-12-17
Publication date: 2014-05-07
Anticipated expiration: 2029-12-17
Also published as: BRPI0923105B1; EP2376685B1; CN102282300A; ITBS20080232A1; IT1392450B1; EP2376685A1; WO2010070608A1

Abstract

A device (1) of a fibre manufacturing machine, such as a lap-winder, forming a lap (L), comprises a pair of calenders (22,24) to support the lap being formed, and a belt (30) which forms a circuit next to the formation area (20), in contact with the lap in formation, to limit the formation of thickening.

Description

The scroll apparatus for converting for the manufacture of fibroreticulate machine such as lapper

Technical field

The present invention relates to a kind of scroll apparatus for converting for the manufacture of fibroreticulate machine such as lapper.

Background technology

The processing of the common fiber take flock as form of fiber manufacturing system prediction is to obtain yarn.

System is comprised of many machines; Carding machine makes it possible to produce fiber web especially.

Being placed in the lapper of carding machine downstream circuit, many nets are pulled and are mutually combined to form volume, and it is upper to form volume in scroll apparatus for converting to be wound into pipe.

An embodiment that forms device is described in EP-A1-1464739 with applicant's name.Other embodiment is described in EP160165 and US3134553.

Cigarette and is transported to combing machine, and the net being produced by these combing machines starting from volume is transported to drawing frame, Speed frames and fine spining machine to be respectively used to the spool of net, rove and forming of yarn.

The regular volume that produces not wearing and tearing is vital.

But, in the device of known technology, forming volume, this volume keeps two calenders that rotate with the speed with higher to add press contacts.By being wound around, especially approaching volume that the soft net of contact lines upstream of calender forms tends to form thickening when the resistance that circumvolution ran into due to volume around time on the surface of calender.This phenomenon is called as " thickening " in the industry.

Summary of the invention

The object of the invention is to produce the scroll apparatus for converting especially for lapper, this scroll apparatus for converting can overcome or suppress the problem that thickening forms.

By the scroll apparatus for converting of making according to claim 1 below, realize this object.Independent claims are described embodiment modification.

Accompanying drawing explanation

With reference to the accompanying drawings, by the description below providing with non-limiting example, will be very clear according to the feature and advantage of formation device of the present invention, wherein:

Fig. 1 shows according to the stereogram of the initial launch structure of the scroll apparatus for converting of an embodiment of the invention;

Fig. 2 shows the stereogram of the configured intermediate of the device in Fig. 1;

Fig. 3 shows the stereogram of the final structure of the device in Fig. 1;

Fig. 4 show according to another embodiment according to the schematic diagram of formation device of the present invention;

Fig. 5 a to 5h shows another embodiment of the formation device in a series of fabrication stages; And

Fig. 6 to 11 shows the other embodiment modification of scroll apparatus for converting.

The specific embodiment

According to the present invention, the machine for the manufacture of fiber web or volume such as lapper comprises scroll apparatus for converting 1.

Device 1 input area entering 2 having for netting W, nets the equipment of W from the lines upstream towing of for example lapper and winding equipment and so on, device 1.

Preferably, device 1 comprise be placed in input area 2, receive come in net W and the input block 4 that the direction of advancing is departed from.

For example, input block 4 comprises motor-driven input cylinder 6 and engages to drag with input cylinder a pair of

input roller

8,10 of netting W.

In addition, preferably, input block 4 comprises alignment roller 12, and net W passed through before extend in the formation region 20 towards volume L on alignment roller 12.

Volume L forms by being wrapped in pipe T that surface is installed with hole net W around.

In addition, device 1 comprise formation for rolling up L, for example a pair of calender motor-driven and that preferably there is fixed bias circuit line.

In addition, device 1 comprises that at least one is with 30, and at least one engages with at least one in described calender with 30, in described calender described at least one be called main calender 22, towards another calender that is called as secondary calender 24, so that L is rolled up in formation.

Especially, be with 30 at least in a contact portion, to contact with main calender 22, this contact portion has the fan-shaped layout relative with forming region 20, forms region 20 relative with secondary calender 24.

Preferably, in addition, device 1 comprise can be during the formation of volume the tension adjustment device of tension force of accommodation zone 30.

For example, adjust device and comprise idler roller 40, described idler roller 40 be with 30 to engage, have movable pivot center so that be with tensioning or loosen and then adjustment of tonicity.

According to preferred embodiment, the closed-loop path with 30 formation around main calender 22.For example, alignment roller 12 and idler roller 40 are placed in this loop being formed by band.

Preferably, in addition, be with 30 at main calender 22 and input process between cylinder 6, and by end rollers 12, departing from and engaged at least one in

input roller

8,10 before advancing in the formation region of volume.

With 30, at least a portion in loop, serve as the device of transport network.

Especially, net W and be with 30 towards the second input roller 10 polymerizations, so that in the lines upstream of the second input roller 10, net W and be with 30 separately and towards roller 10 polymerizations, and at the downstream of input roller 10 circuit, net is with 30 supports and is guided towards alignment roller 12.

In addition, device 1 comprises volume or the pipe that guiding device is forming with guiding.

For example, described guiding device comprises bracket 50, and bracket 50 comprises a pair of dish 52, and described a pair of dish 52 separates to limit the region between them along the pivot center of

calender

22,24.

When volume forms beginning, the pipe T around still not netting puts and leans against on two

calenders

22,24 and be placed between the dish 52 of guiding device.

In addition, bracket 50 comprises the first telecontrol equipment, and this first telecontrol equipment is connected in dish 52 so that these rims for example with the formation direction consistent with the tangent direction of two

calenders

22,24 moves.

For example, described telecontrol equipment is pneumatic.

In a side of main calender 22, between pipe T and described calender 22, have the section with 30, with this section of 30 forms the part that contacts with main calender 22, from alignment roller 12, this section is supplied to net W to manage T.

At the normal operation period that forms device 1, in the initial formation structure (Fig. 1) of volume, pipe T puts and leans against on

calender

22,24 in the situation that not netting W.

Bracket 50 so that two dishes 52 are found the own axial end portion place at pipe T, coils containing pipe T at retraction extreme position.

Idler roller 40 is at limit tension position, and in this position, band has its maximum tension; In other words, idler roller 40 in the maximum distance apart of the pivot center from main calender 22 to make to be with 30 tensionings.

Forming the normal operation period of device 1,

calender

22,24 is in rotating, and net W is fed into input block 4 and by being with 30 transportations to pipe T.

By the rotation of the pipe T under the help of the negative pressure in the pipe T that is installed with hole and

calender

22,24, making to net W can be wrapped on pipe T.

Centre form structure (Fig. 2) in, volume by bracket 50, be pressed onto on two

calenders

22,24 in rotation, and with net W together with by being with 30 to be supplied to.

Bracket 50 is in centre position, and in this centre position, dish 52 is forming translation in direction, and compared with in initial formation structure, separates larger distance with the pivot center of

calender

22,24.

Idler roller 40 be suitable for making with 30 tensionings must than initial form structure in few middle tension position.In other words, compared with in the initial formation structure of volume, the pivot center of the more close main calender 22 of idler roller 40.

By this way, because the volume of volume increases, continue to put and lean against on calender and just on the section of the lines upstream of band-calender contact portion 22 of being with, so band fluffs and adapts to the shape of volume, for example, in the lines upstream bending of band-calender contact portion 22.

Serve as the induction element of rolling up in forming process with 30, and especially, make it possible to eliminate thickening problem.

Final, form in structure (Fig. 3), volume has the maximum volume of expectation, and bracket 50 is at extreme position forward, that is, dish is in the maximum distance apart of the pivot center from calender, and idler roller is at minimum tension position, that is, in the minimum distance of the pivot center from main calender 22.

According to another modification (Fig. 4) that forms device, input block 4 comprises input cylinder 6, be with 30 and net W towards input cylinder 6 polymerizations, at the downstream circuit of input cylinder 6, be with 30 transport network W, and described formation device is equipped with alignment roller 12, transport network W is with 30 will be with 30 self to ride alignment roller 12 and arrange, and moves subsequently towards forming region 20.

In addition, in described modification, input block comprises another to input roller 14,16 around alignment roller 12.

At the downstream circuit of input cylinder 6, be with 30 between end rollers 12 and the first input roller 14 process, and then between end rollers 12 and the second input roller 16 through then to make being with 30 self separate and advance towards forming region 20 from end rollers 12.

According to another embodiment (Fig. 5 a to 5h), form device 1 and comprise mobile auxiliary equipment, this moves auxiliary equipment can revise the initialization that they engage alignment roller 12 and be also convenient to roll up L except other side with the region different with respect to the position of alignment roller 12 according to order.

According to an embodiment, auxiliary equipment comprises at least one side roll with the pivot center substantially parallel with the pivot center of alignment roller 12, at least one side roll engages with alignment roller 12 under the company of net together with being with 30, and can based on order, arrange with respect to this alignment roller 12.

According to preferred embodiment, auxiliary equipment comprises a pair of

side roll

60,62 and for example by the order flange 64 forming with the coaxial dish of alignment roller, side roll is incorporated into order flange 64 rotationally.

Preferably, in addition, auxiliary equipment comprise the side roll that makes alignment roller based on order near or away from the second telecontrol equipment.

For example, telecontrol equipment comprises that each in the first support member 66 and the second support member 68, the first support members 66 and the second support member 68 supports in described

side roll

60,62.

Preferably, the shape of two support members is contrary with the shape of alignment roller.

Two support members are articulated with each other, and for example at identical some place, are articulated with order flange 64.

By this way, for the given angle position of order flange, the rotation of

support member

66,68

cause side roll

60,62 near or away from alignment roller 12.

The rotation of order flange makes side roll rotate around alignment roller to a certain extent, and this revises the region of the joint between side roll and alignment roller.

According to preferred embodiment, telecontrol equipment also comprise be for example pneumatically driven, be incorporated into order flange and be connected in the cylinder piston unit 70 of support member 66,68.The startup of cylinder piston unit causes the rotation of support member, so cause side roll near or away from (depending on the direction of the translation of piston) alignment roller.

Net W is incorporated into first stage in the formation device 1 that is equipped with auxiliary equipment (Fig. 5 is a) in (initial phase), order flange rotate into make side roll especially the lines upstream of side roll 60 with respect to the direction of advancing of band as much as possible in the lines upstream of alignment roller.

By the net W coming in 30 transportations, engaged with side roll 60 and alignment roller 12 immediately.

In initialized second stage (Fig. 5 b and 5c), net W is by being with 30 companies around alignment roller, and order flange is also little by little rotated so that downstream circuit side roll 62 is accompanied from alignment roller 12 net W out.

By the net W with 30 transportations, towards the advancing of pipe T being placed between

calender

22,24, proceeded until net is wrapped in described pipe around to form volume L (formation stages; Fig. 5 d to 5f).

During forming, as mentioned above, little by little translation of bracket 50, and be with 30 little by little to be become slack.

Once form volume L, net W need to be torn to can remove the volume L of formation and start to form new volume.

Order flange 64 rotate into make side roll especially downstream circuit side roll 62 with respect to alignment roller 12, move down as far as possible.

By this way, net therein clamped for the region of tearing very near being wound into the band on volume so that the edge being torn is neat and level and smooth.

Telecontrol equipment is driven into and can causes the pressure of side roll against alignment roller 12 in following direction.In the embodiment illustrating, for example, the piston-retraction of cylinder piston unit 70, thus the pressure of side roll in alignment roller caused.

Make to roll up that L promotes, bracket 50 from

calender

22,24 further away from each other with the combination that slowly runs of dish 52 of rotation that causes volume L, consider the online clamping being caused by

cylinder

62,12, the rotation of volume L causes tearing of described net.

In order to expel volume L (Fig. 5 h),, according to preferred embodiment, to be with 30 roller 40 tensionings that are tensioned; Band self-acting, on volume 30, is rolled on secondary calender 24 thereby make to roll up.

Or the size of calender and their mutual alignment are arranged so that the center of gravity of the volume L forming drops on the surperficial decline section of secondary calender 24, thereby once cause the effect of volume disengaging dish 52 just freely to fall.

According to another embodiment (Fig. 6) of scroll apparatus for converting 1, the gap 100 between calender be with the tangent common direction of described multiple calenders on asymmetric region.

Especially, " gap between calender " is defined as by two lateral

cylindrical surface

22a, 24a of two

calenders

22,24 and forms the region that the total imaginary tangent plane 102 of two

surperficial

22a, 24a of the calender in region 20 limits, wherein, pipe T is positioned to two calenders and contacts.

In aforementioned embodiments, gap 100 is asymmetric, and reason is with the diameter of the main calender 22 in 30 loop less than the diameter of secondary calender 24.

For example, the big or small ratio between the diameter of main calender and the diameter of secondary calender, between 0.2 to 0.5, is preferably between 0.3 to 0.4 and is generally speaking 0.27.

In addition, in an embodiment modification, be equipped with the scroll apparatus for converting 1 formation system of dish 52 and pipe T, wherein, be with 30 not to be clamped in that between pipe T and main calender 22, (Fig. 6 a); This can be found out by the following fact: along main calender planar I, the surface of pipe does not contact with the working surface of band, but thering is the space S of about 0.5 millimeter to 1 millimeter, main calender planar I is the axis under primary condition and being blocked in dish 52 through the pivot center of main calender and pipe T.

According to another embodiment (Fig. 7), form device 1 with 30 have from pipe T with the direction of the opposite direction advancing of the band of normal operation points of tangency 112 that start, be positioned at the winding bend 110 on main calender 22.

In other words, when forming circulation beginning, pipe T puts and leans against on two

calenders

22,24; Especially, its along section 112 be with 30 to contact; In the lines upstream of section 112, be with 30 be wound around bend 110 before main calender 22 separates, to be wrapped in around main calender 22.

Rely on alignment roller 12 to obtain and be wound around bend 110, alignment roller 12 is positioned to significantly away from forming region and being rotated with respect to vertical direction.

Preferably, the embodiment that has winding bend 110 is also predicted the gap 100 between asymmetric calender.

According to another embodiment, scroll apparatus for converting 1 comprises the supplemental support roller 150 being placed between alignment roller 12 and main calender 22; Therefore, the support section 152 of band be limited to 30 with main calender 22 contact section and with 30 and the contacting of backing roll 150 (Fig. 8) between section.

During the formation of volume L, thereby the formation of volume L is to contact and to finish with the support section 152 of band with backing roll 150 against main calender 22.

Preferably, there is the asymmetry freeplay 100 between the winding bend of the band on embodiment prediction calender and/or the main calender of backing roll.

According to an embodiment modification, be equipped with the scroll apparatus for converting 1 formation system of dish 52 and pipe T, wherein, when forming circulation and start, be with 30 not contact with pipe T, wherein, pipe is blocked in that between dish, (Fig. 8 is a).The surface of pipe has the space S of about 0.2 millimeter to 2 millimeters.

According to another embodiment (Fig. 9), bore a hole with 30, that is, band has the many holes through its thickness.

According to another embodiment, the width or the size that in the direction with 30 pivot centers at calender, have are larger than the axial length of main calender, and for example, than 0.5 millimeter of the slightly small about every side of axial distance between dish 52.

According to another embodiment (Figure 10 and 11), the width having in the direction with 30 pivot centers at calender or size are little more a lot of than the axial distance between dish.For example,, with 5 millimeters of the narrow about every sides of distance between 30 ratio dishes 52.

Preferably, in said embodiment, device 1 comprises two side direction flanges 200 that are placed in the place, side of main calender 22 and are securely attached to main calender 22; Flange 200 with respect to the radial surface of main calender 22 protrude the thickness that is preferably at least band, to be formed for the winding guiding piece with 30, with 30, be wound on main calender 22 to form the face of cylinder tactile with the cigarette forming.

According to another embodiment, device 1 comprises the device that pipe is centered, for example, described device comprises the insert 202 of a pair of truncated cone, the insert 202 center of a pair of truncated cone attaches to dish 52, and be suitable for being inserted in pipe T, at least form when circulation starts and make the position of pipe be positioned at center at volume.

Innovation ground, the thickening during formation device according to the present invention makes it possible to elimination or reduces the formation of rolling up.

Advantageously, in addition, device makes it possible to use high velocity of rotation to form volume when keeping high quality standards.

According to another favourable aspect, the asymmetric gap between calender makes it possible to be distributed on the volume forming in the best way by calender applied pressure, thereby restriction forms thickening.

According to another favourable aspect, the disturbances that the volume that the winding angle of band on main calender makes it possible to form is not produced by the band by moving.

In addition, advantageously, the band of perforation makes it possible to limit the effect of the disturbance being caused by the band moving to the volume in forming, and reason is, due to the path being produced by hole, therefore flows and flows out outside formation region.

Advantageously, in addition, the band that width reduces makes it possible to the clamping of the possibility of limit interferences dish and the bar of net, and the flange of the main calender band that under any circumstance stably guiding is wound around.

According to another favourable aspect, the insert of dish makes it possible to when forming circulation beginning, and pipe is positioned to fully with dish and aligns to prevent that pipe from then rotating prejudicially together with these dishes.

It is evident that, persons skilled in the art can modify to meet possible requirement above-mentioned formation device.

For example, according to an embodiment modification, main calender be installed with from the teeth outwards hole with separate by with the mobile turbulent flow producing.

According to another embodiment modification, main calender is motor-driven; According to another modification, main calender is not motor-driven.

According to another embodiment modification, secondary calender be motor-driven and be independent of main calender motion so that thickening minimize.

These modification also drop in the protection domain as limited by following claim.

Claims

1. the device for fibre-processing machine (1) for the formation of volume (L), described device can through forming the initial construction of this volume, to the final structure that forms described volume, described device comprises:

Form region (20), in described formation region (20), from described initial construction, described in described final structure installation, roll up;

Main calender (22), described main calender (22) can be around described main calender (22) thus pivot axis form described volume, described main calender can support the described volume from described initial construction to described final formation of structure;

Band (30), described band (30) forms the loop near described formation region (20), described loop is with the described cigarette from described initial construction to described final formation of structure is tactile, the described loop of wherein said band (30) is closed, and described main calender (22) contacts with described band (30) in described loop and at least in a contact portion towards described formation region (20).

2. device according to claim 1, wherein, described band can be by turning round and move in the direction of the formation at described volume.

3. device according to claim 1, comprise alignment roller (12), described alignment roller (12) is placed in the lines upstream in described formation region (20), engage with described band so that the path deviation of described band and in the described loop of described band.

4. device according to claim 3, wherein, input block comprises input cylinder (6) and the input roller (8,10) engaging with described input cylinder (6), and described input cylinder (6) is positioned at outside the loop of described band with described input roller (8,10).

5. device according to claim 1, comprises the device of the tension force of adjusting described band.

6. device according to claim 5, wherein, the device of the tension force of the described band of described adjustment comprises idler roller (40), described idler roller (40) engages with described band (30) in the loop of described band (30), and described idler roller (40) has mobile pivot center so that described band tensioning or loosen.

7. device according to claim 1, comprise the secondary calender (24) adjacent with described main calender, described secondary calender (24) can be around described secondary calender (24) thus pivot axis form described volume, described secondary calender can support the described volume from described initial construction to described final formation of structure together with described main calender.

8. device according to claim 1, comprises the guiding device of the described volume forming, and described guiding device can guide the described volume forming.

9. device according to claim 8, wherein, described guiding device comprises bracket (50), described bracket (50) comprising:

A pair of dish (52), described a pair of dish (52) is spaced apart along the pivot center of described main calender (22); And

The first telecontrol equipment, described the first telecontrol equipment be connected in described dish (52) for synchronously these dishes of translation of formation of described volume.

10. device according to claim 9, comprise the secondary calender (24) adjacent with described main calender, described secondary calender (24) can be around described secondary calender (24) thus pivot axis form described volume, described secondary calender can support the described volume from described initial construction to described final formation of structure together with described main calender, and wherein, described translation along with described main calender (22) and the consistent formation direction of the tangent direction of described secondary calender (24).

11. devices according to claim 10, comprise alignment roller (12), described alignment roller (12) is placed in the lines upstream in described formation region (20), engage with described band so that the path deviation of described band and in the described loop of described band, and described device comprises mobile auxiliary equipment, described mobile auxiliary equipment can according to order revise described mobile auxiliary equipment with respect to the position of described alignment roller (12) to engage described alignment roller (12) in different regions.

12. devices according to claim 11, wherein, described auxiliary equipment comprises at least one side roll (60,62), and described at least one side roll (60,62) has the pivot center substantially parallel with the pivot center of described alignment roller (12).

13. devices according to claim 12, wherein, described auxiliary equipment comprises order flange (64), described side roll is incorporated into described order flange (64) rotationally.

14. devices according to claim 11, wherein, described auxiliary equipment comprises the second telecontrol equipment, the described side roll that described the second telecontrol equipment makes described alignment roller near or away from.

15. devices according to claim 7, wherein, the gap (100) between described main calender (22) and described secondary calender (24) is asymmetric.

16. devices according to claim 7, wherein, the diameter of described main calender is less than the diameter of described secondary calender.

17. devices according to claim 16, wherein, the ratio between the described diameter of described main calender and the described diameter of described secondary calender is 0.2 to 0.5.

18. devices according to claim 1, wherein, with the direction of the opposite direction advancing of described band on, described band (30) has the winding bend (110) on described main calender (22).

19. devices according to claim 1, comprise backing roll (150), the support section (112) that is suitable for supporting the described volume forming of described band (30) is between described backing roll and described main calender (22).

20. devices according to claim 1, wherein, described band (30) is bored a hole.

21. devices according to claim 1, wherein, described main calender (22) is bored a hole.

22. devices according to claim 9, wherein, the width of described band (30) is less than the distance between described dish (52).

23. devices according to claim 1, comprise a pair of flange (200) that is placed in the place, side of described main calender (22) and is incorporated into described main calender (22), described a pair of flange (200) from the radial surface of described main calender protrude to be formed for the guiding piece of mobile band.

24. devices according to claim 1, comprise the device that the pipe (T) to being supported by described calender centers.

25. devices according to claim 7, wherein, described main calender is independent of described secondary calender (24) and drives.

26. devices according to claim 16, wherein, the ratio between the described diameter of described main calender and the described diameter of described secondary calender is 0.3 to 0.4.

27. devices according to claim 16, wherein, the ratio between the described diameter of described main calender and the described diameter of described secondary calender is 0.27.

28. 1 kinds of lappers, comprise according to the volume (L) that in aforementioned claim, any one is made and form device (1).

29. 1 kinds form the system of volume, comprising:

According to the formation device described in any one in claim 1 to 27;

Pipe (T);

Wherein, described band (30) is not clipped between described pipe (T) and the surface of described main calender when forming circulation beginning.

30. 1 kinds form the system of volume, comprising:

According to the formation device described in any one in claim 1 to 27;

Pipe (T);

Wherein, described pipe (T) when forming circulation and start and the working surface of described band (30) separate.