US3842465A - Apparatus to form fibrous laps from webs - Google Patents

Apparatus to form fibrous laps from webs Download PDF

Info

Publication number
US3842465A
US3842465A US00322194A US32219473A US3842465A US 3842465 A US3842465 A US 3842465A US 00322194 A US00322194 A US 00322194A US 32219473 A US32219473 A US 32219473A US 3842465 A US3842465 A US 3842465A
Authority
US
United States
Prior art keywords
webs
conveyor
lap
withdrawing
vertical conveyors
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US00322194A
Inventor
T Randmaa
V Loo
A Sillaots
N Kuuse
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to GB5721370A priority Critical patent/GB1295487A/en
Priority to NL7017801A priority patent/NL7017801A/xx
Priority to FR7044120A priority patent/FR2117703B1/fr
Application filed by Individual filed Critical Individual
Priority to US00322194A priority patent/US3842465A/en
Application granted granted Critical
Publication of US3842465A publication Critical patent/US3842465A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/70—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres
    • D04H1/74—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres the fibres being orientated, e.g. in parallel (anisotropic fleeces)
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01G—PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
    • D01G25/00—Lap-forming devices not integral with machines specified above

Definitions

  • the present invention relates to textile industry, and more specifically to devices for forming fibrous laps from webs.
  • the present invention can be most successfully utilized to form laps used in the production of nonwoven materials.
  • Known at present are devices for forming a fibrous lap from webs comprising a conveyers to deliver the webs, and a mechanism to lay these webs onto a conveyer withdrawing the ready lap.
  • This mechanism is made in the form of an endless conveying belt passing about a plurality of movable and immovable horizontal rolls, thus forming a two-storey conveyer.
  • the twostorey conveyer reciprocates along the withdrawing conveyer in order to lay the webs into a lap (see for example, a British Pat. No. 904,527, cl. 120 'lb)).
  • the two-storey conveyer causes multiple folds of the belting, and hence, of the web, thus deforming the latter and deteriorating the lap quality. Besides, these folds impose higher requirements upon the physical and mechanical properties of the belting (its elasticity, smoothness, strength, use of antistatic plastic to make the belt, etc.).
  • the lap is not compacted in the process of its forming, which reduces its strength, and makes difficult the process of manufacturing nonwoven materials.
  • the conventional apparatus is also complex in design, and has relatively large overall dimensions.
  • the basic object of the invention is to provide an apparatus to form a fibrous lap from webs with such a design of the web laying mechanism, thatit should secure a lap without any folds and with a definite density and thickness, and it should have a simple construction and reduced size, at the same time ensuring higher lap quality.
  • the apparatus to form a fibrous lap comprising a conveyer to deliver webs, and a mechanism to lay the webs onto a conveyer withdrawing the ready lap
  • the web laying mechanism ineludes, according to the invention, two vertical conveyers mounted on a swinging frame, and disposed at the outlet end of the delivery conveyer, a clearance being provided between them to let through the web, and positively rotated compacting rolls mounted on a carriage, which is hingcdly connected to the swinging frame, and moves along the withdrawing conveyer.
  • the frame swinging axle should be located in the plane of the drum axles of the delivery conveyer, tangentially to the outlet drum.
  • the carriage can be made adjustable in height.
  • the clearance between the vertical conveyers can also be made adjustable.
  • FIG. 1 is a schematic diagram of the apparatus according to the invention, side view;
  • FIG. 2 same, front view
  • FlG. 3 view along arrow A in FlG. 2.
  • the lap forming apparatus comprises a feeding conveyer 1 (FIG. 1) to deliver webs? 2, andtwo vertical conveyers 3 mounted at the outlet end of conveyer 1. Between these conveyers 3 there is a clearance to let through webs 2 coming from conveyer l. Conveyers 3 are mounted on a frame 5 swinging about an axle 4. Axle 4 is disposed in the plane of the axles of drums 6 of conveyer 1, tangentially to the outlet drum 6. Such disposition of axle 4 precludes deformation of web 2. The clearance between conveyers 3 is adjustable, for which purpose frame 5 is made of two tubular parts telescopically connected to each other.
  • the belts of conveyers 3 are driven by means of two pairs of gears 7 and 8, whereof one gear 7 is mounted on a cardan shaft 9 (FIG. 2) which. is rotated by a drive sprocket 10.
  • Frame 5 is swung by any conventional mechanism, say, a crank gear (not shown).
  • Axle 4 of frame 5 is securedin side plates 1.1.
  • Carriage 13 is made adjustable in height, for which purpose it is mounted on a rack 18 moving along guides 19. Such adjustment is necessary to secure the specified density of the lap being formed.
  • the compacting rolls are rotated by means of two pairs of gears 20 and 21 (FIG. 3), of which gears 20 engage rack 18.
  • the apparatus acts as follows.
  • Frame 5 together with conveyers 3 receives rocking movement about axle 4.
  • the rocking movement of frame 3 is converted to reciprocatory movement of carriage 13 with the compacting rolls 12 which are also positively and reversibly rotated from the toothed rack 18 through gears 20 and 21.
  • the drive sprocket 10 through the cardan shaft 9 sets in motion one of conveyers 3, wherefrom through the pairs of gears 7 and 8 movement is transmitted to the other conveyer 3.
  • conveyers l and 16 are actuated at the same time (their drives not being shown).
  • One of several webs 2 are fed by conveyer 1 into the clearance between conveyers 3. Having passed between conveyers 3 the web comes to under rolls 12. Due to the rocking movement of frame 5 together with conveyers 3, and the reciprocatory movement of carriage 13, the web is laid and sandwiched on conveyer .16, and compacted by rolls 12, thus forming a ready sandwiched lap 17. Then this lap is taken by conveyer 16 to further processing.
  • An apparatus for continuously forming a fibrous lap from webs comprising; a delivery conveyor for said webs mounted on a pair of rotatable drums, said drums being located in spaced relationship in a common horizontal plane and fixed against translational movement; a pair of vertical conveyors having the upper ends thereof positioned adjacent the outlet end of said delivery conveyor, said vertical conveyors having a predetermined clearance therebetween so as to facilitate passage therethrough by said webs; a further conveyor located below said vertical conveyors for withdrawing the formed lap of said webs conveyed between said verframe, said carriage means having a generally vertically extending slot formed therein for receiving said projecting portion so as to hingedly connect said carriage means to said oscillating frame whereby, during rocking motion of said frame about said axis there is relative vertical movement between said carriage means and the lower end of said vertical conveyors and said carriage means is movable in the same direction as said withdrawing conveyor.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Preliminary Treatment Of Fibers (AREA)

Abstract

An apparatus to form a fibrous lap from webs, comprising a conveyor to deliver the webs, and a mechanism to lay the webs onto a conveyer withdrawing the ready lap. The web laying mechanism includes two vertical conveyers mounted on a rocking frame, and positively rotated compacting rolls mounted on a carriage which is hingedly connected to the rocking frame, and moves along the withdrawing conveyer.

Description

Unite States atent r Sillaots et a1.
1 1 Oct. 22, 1974 APPARATUS TO FORM FIIBROUS ILAPS FROM WEBS Related US. Application Data Continuation of Ser. No. 93,282, Nov. 27, 1970, abandoned.
11.5. CI. 19/163 Int. Cl lDll lh 111/04 Field of Search 19/161, 163
References Cited UNITED STATES PATENTS 11/1905 Schoficld et a1. 19/163 2,710,992 6/1955 Goldman t. 19/161 R FOREIGN PATENTS OR APPLICATIONS 78,060 9/1919 Austria 19/163 24,319 12/1962 Germany 19/163 525,796 6/1921 France .r 19/163 Great Britain 19/163 Primary Examiner' -Dorsey Newton Attorney, Agent, or Firm-Waters, Roditi, Schwartz and Nissen [5 7 1 ABSTRACT An apparatus to form a fibrous lap from webs, c0mprising a conveyor to deliver the webs, and a mechanism to lay the webs onto a conveyer withdrawing the ready lap. The web laying mechanism includes two vertical conveyers mounted on a rocking frame, and positively rotated compacting rolls mounted on a carriage which is hingedly connected to the rocking frame, and moves along the withdrawing conveyer.
1 Claim, 3 Drawing Figures This is a continuation of application Ser. No. 93,282 filed Nov. 27, l970, now abandoned.
The present invention'relates to textile industry, and more specifically to devices for forming fibrous laps from webs.
The present invention can be most successfully utilized to form laps used in the production of nonwoven materials.
Known at present are devices for forming a fibrous lap from webs, comprising a conveyers to deliver the webs, and a mechanism to lay these webs onto a conveyer withdrawing the ready lap. This mechanism is made in the form of an endless conveying belt passing about a plurality of movable and immovable horizontal rolls, thus forming a two-storey conveyer. The twostorey conveyer reciprocates along the withdrawing conveyer in order to lay the webs into a lap (see for example, a British Pat. No. 904,527, cl. 120 'lb)).
The two-storey conveyer causes multiple folds of the belting, and hence, of the web, thus deforming the latter and deteriorating the lap quality. Besides, these folds impose higher requirements upon the physical and mechanical properties of the belting (its elasticity, smoothness, strength, use of antistatic plastic to make the belt, etc.).
What is more, the lap is not compacted in the process of its forming, which reduces its strength, and makes difficult the process of manufacturing nonwoven materials.
The conventional apparatus is also complex in design, and has relatively large overall dimensions.
The basic object of the invention is to provide an apparatus to form a fibrous lap from webs with such a design of the web laying mechanism, thatit should secure a lap without any folds and with a definite density and thickness, and it should have a simple construction and reduced size, at the same time ensuring higher lap quality.
With this object in view, in the apparatus to form a fibrous lap, comprising a conveyer to deliver webs, and a mechanism to lay the webs onto a conveyer withdrawing the ready lap, the web laying mechanism ineludes, according to the invention, two vertical conveyers mounted on a swinging frame, and disposed at the outlet end of the delivery conveyer, a clearance being provided between them to let through the web, and positively rotated compacting rolls mounted on a carriage, which is hingcdly connected to the swinging frame, and moves along the withdrawing conveyer.
In the case of using belt conveyers, the frame swinging axle should be located in the plane of the drum axles of the delivery conveyer, tangentially to the outlet drum.
The carriage can be made adjustable in height. The clearance between the vertical conveyers can also be made adjustable. For a better understanding of the invcntion considered below is a particular exemplary embodiment thereof with references to the appended drawings, wherein:
FIG. 1 is a schematic diagram of the apparatus according to the invention, side view;
FIG. 2 same, front view;
FlG. 3 view along arrow A in FlG. 2.
The lap forming apparatus comprises a feeding conveyer 1 (FIG. 1) to deliver webs? 2, andtwo vertical conveyers 3 mounted at the outlet end of conveyer 1. Between these conveyers 3 there is a clearance to let through webs 2 coming from conveyer l. Conveyers 3 are mounted on a frame 5 swinging about an axle 4. Axle 4 is disposed in the plane of the axles of drums 6 of conveyer 1, tangentially to the outlet drum 6. Such disposition of axle 4 precludes deformation of web 2. The clearance between conveyers 3 is adjustable, for which purpose frame 5 is made of two tubular parts telescopically connected to each other.
The belts of conveyers 3 are driven by means of two pairs of gears 7 and 8, whereof one gear 7 is mounted on a cardan shaft 9 (FIG. 2) which. is rotated by a drive sprocket 10. Frame 5 is swung by any conventional mechanism, say, a crank gear (not shown). Axle 4 of frame 5 is securedin side plates 1.1.
Located under conveyers 3 are positively rotated compacting rolls 12, between which the webs are fed, and which are mounted on a carriage 13. The latter is connected to the swinging frame 5 through a hinge 14 located in slot 15 (FIG. 3) of carriage l3.
Owing to the hinge joint of frame 5 with carriage 13 the latter moves along a conveyer 16 (FIG. 1) which withdraws the ready lap 17. Carriage 13 is made adjustable in height, for which purpose it is mounted on a rack 18 moving along guides 19. Such adjustment is necessary to secure the specified density of the lap being formed.
The compacting rolls are rotated by means of two pairs of gears 20 and 21 (FIG. 3), of which gears 20 engage rack 18.
The apparatus acts as follows.
Frame 5 together with conveyers 3 receives rocking movement about axle 4. The rocking movement of frame 3 is converted to reciprocatory movement of carriage 13 with the compacting rolls 12 which are also positively and reversibly rotated from the toothed rack 18 through gears 20 and 21. The drive sprocket 10 through the cardan shaft 9 sets in motion one of conveyers 3, wherefrom through the pairs of gears 7 and 8 movement is transmitted to the other conveyer 3.
Next, conveyers l and 16 are actuated at the same time (their drives not being shown). One of several webs 2 are fed by conveyer 1 into the clearance between conveyers 3. Having passed between conveyers 3 the web comes to under rolls 12. Due to the rocking movement of frame 5 together with conveyers 3, and the reciprocatory movement of carriage 13, the web is laid and sandwiched on conveyer .16, and compacted by rolls 12, thus forming a ready sandwiched lap 17. Then this lap is taken by conveyer 16 to further processing.
What we claim is:
1. An apparatus for continuously forming a fibrous lap from webs, comprising; a delivery conveyor for said webs mounted on a pair of rotatable drums, said drums being located in spaced relationship in a common horizontal plane and fixed against translational movement; a pair of vertical conveyors having the upper ends thereof positioned adjacent the outlet end of said delivery conveyor, said vertical conveyors having a predetermined clearance therebetween so as to facilitate passage therethrough by said webs; a further conveyor located below said vertical conveyors for withdrawing the formed lap of said webs conveyed between said verframe, said carriage means having a generally vertically extending slot formed therein for receiving said projecting portion so as to hingedly connect said carriage means to said oscillating frame whereby, during rocking motion of said frame about said axis there is relative vertical movement between said carriage means and the lower end of said vertical conveyors and said carriage means is movable in the same direction as said withdrawing conveyor.

Claims (1)

1. An apparatus for continuously forming a fibrous lap from webs, comprising; a delivery conveyor for said webs mounted on a pair of rotatable drums, said drums being located in spaced relationship in a common horizontal plane and fixed against translational movement; a pair of vertical conveyors having the upper ends thereof positioned adjacent the outlet end of said delivery conveyor, said vertical conveyors having a predetermined clearance therebetween so as to facilitate passage therethrough by said webs; a further conveyor located below said vertical conveyors for withdrawing the formed lap of said webs conveyed between said vertical conveyors; an oscillating frame mounting said vertical conveyors and being rockable relative to an axis laying in the plane of the geometrical axes of said drums at a tangent to the outlet end of said delivery conveyor and along said withdrawing conveyor for laying said webs on said lastmentioned conveyor in the logitudinal direction thereof; a pair of positively rotated compacting rolls; carRiage means mounting said compacting rolls for horizontal movement below said vertical conveyor; hinge means having a projecting portion being fastened to the lower end of said oscillating frame, said carriage means having a generally vertically extending slot formed therein for receiving said projecting portion so as to hingedly connect said carriage means to said oscillating frame whereby, during rocking motion of said frame about said axis there is relative vertical movement between said carriage means and the lower end of said vertical conveyors and said carriage means is movable in the same direction as said withdrawing conveyor.
US00322194A 1970-11-27 1973-01-09 Apparatus to form fibrous laps from webs Expired - Lifetime US3842465A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
GB5721370A GB1295487A (en) 1970-11-27 1970-12-02
NL7017801A NL7017801A (en) 1970-11-27 1970-12-07
FR7044120A FR2117703B1 (en) 1970-11-27 1970-12-08
US00322194A US3842465A (en) 1970-11-27 1973-01-09 Apparatus to form fibrous laps from webs

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US9328270A 1970-11-27 1970-11-27
GB5721370 1970-12-02
NL7017801A NL7017801A (en) 1970-11-27 1970-12-07
FR7044120A FR2117703B1 (en) 1970-11-27 1970-12-08
US00322194A US3842465A (en) 1970-11-27 1973-01-09 Apparatus to form fibrous laps from webs

Publications (1)

Publication Number Publication Date
US3842465A true US3842465A (en) 1974-10-22

Family

ID=27515359

Family Applications (1)

Application Number Title Priority Date Filing Date
US00322194A Expired - Lifetime US3842465A (en) 1970-11-27 1973-01-09 Apparatus to form fibrous laps from webs

Country Status (4)

Country Link
US (1) US3842465A (en)
FR (1) FR2117703B1 (en)
GB (1) GB1295487A (en)
NL (1) NL7017801A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4830351A (en) * 1988-01-27 1989-05-16 Morrison Berkshire, Inc. Batt stabilization in cross-lapped web manufacturing apparatus
US20050095935A1 (en) * 2003-11-03 2005-05-05 Mark Levine Durable highly conductive synthetic fabric construction
US20080318483A1 (en) * 2007-06-07 2008-12-25 Joseph Salitsky Conductive Monofilament and Fabric

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4127172C2 (en) * 1991-08-16 1995-02-02 Heraklith Baustoffe Ag Device for applying fleece, in particular mineral wool fleece, to a support belt
DE69312763T2 (en) * 1992-02-26 1998-03-12 Chien Jung Fu Method for corrugating and connecting or thermally connecting filler material and filler material produced thereby.
JP2643778B2 (en) * 1993-06-21 1997-08-20 産栄機設株式会社 Method and apparatus for producing cotton collection mat
CN113005640A (en) * 2021-02-19 2021-06-22 宿州市悦然纺织有限公司 Can intelligent regulation compression roller interval and prevent cotton from being stained with crowded cotton device of using that attaches

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE24319C (en) * P. GAY in Paris Stone saw with endless saw cords running over guide drums and innovation in the manufacture of these cords
GB189826637A (en) * 1898-12-16 1899-12-16 Carl Oswald Liebscher Improvements in and relating to the Fleece Delivering and Feeding Apparatus of Carding Engines.
US805934A (en) * 1905-02-10 1905-11-28 William Schofield Company Lap-feeding device for carding-machines.
AT78060B (en) * 1917-02-22 1919-09-10 C E Schwalbe Fa Narrow band transmission device on carding machines.
FR525796A (en) * 1920-10-12 1921-09-27 Gilles Joseph Prick Automatic device for transforming the web into a mattress in carding machines
US2710992A (en) * 1948-08-25 1955-06-21 Chicopee Mfg Corp Machine for making cross-laid fabrics

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1299112A (en) * 1961-06-09 1962-07-20 Regnier Ets Method and device for introducing into a needling machine, a web of natural or artificial textile fibers

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE24319C (en) * P. GAY in Paris Stone saw with endless saw cords running over guide drums and innovation in the manufacture of these cords
GB189826637A (en) * 1898-12-16 1899-12-16 Carl Oswald Liebscher Improvements in and relating to the Fleece Delivering and Feeding Apparatus of Carding Engines.
US805934A (en) * 1905-02-10 1905-11-28 William Schofield Company Lap-feeding device for carding-machines.
AT78060B (en) * 1917-02-22 1919-09-10 C E Schwalbe Fa Narrow band transmission device on carding machines.
FR525796A (en) * 1920-10-12 1921-09-27 Gilles Joseph Prick Automatic device for transforming the web into a mattress in carding machines
US2710992A (en) * 1948-08-25 1955-06-21 Chicopee Mfg Corp Machine for making cross-laid fabrics

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4830351A (en) * 1988-01-27 1989-05-16 Morrison Berkshire, Inc. Batt stabilization in cross-lapped web manufacturing apparatus
US20050095935A1 (en) * 2003-11-03 2005-05-05 Mark Levine Durable highly conductive synthetic fabric construction
US20080318483A1 (en) * 2007-06-07 2008-12-25 Joseph Salitsky Conductive Monofilament and Fabric
US10227714B2 (en) 2007-06-07 2019-03-12 Albany International Corp. Conductive monofilament and fabric

Also Published As

Publication number Publication date
FR2117703B1 (en) 1975-01-10
FR2117703A1 (en) 1972-07-28
NL7017801A (en) 1972-06-09
GB1295487A (en) 1972-11-08

Similar Documents

Publication Publication Date Title
US3842465A (en) Apparatus to form fibrous laps from webs
US2428709A (en) Material handling
GB966275A (en) Reciprocable conveyor
GB1275568A (en) Process and apparatus for making spun threads from textile fibres
US3340584A (en) Apparatus for cross-laying fibrous material
GB1001228A (en) Bale opening apparatus
US3112054A (en) Apparatus for orienting textile bands
US3123889A (en) Strand packagers
US3636591A (en) Drafting device for textile machines
ES345976A1 (en) Apparatus for forming a sliver of textile fibres
US4071925A (en) Apparatus for forming textile lap
US2594591A (en) Conveyer for feeding and spreading loose fiber into sheet form
US2805765A (en) Textile package formation
US3621540A (en) Fibrous batt feeding mechanism
GB2056513A (en) Conversion of fibrous webs to slivers
DE1859997U (en) STORAGE DEVICE FOR FLAT CHEERING MACHINES OD. DGL.
US3880696A (en) Machine for the manufacture of tape by a winding method
GB842750A (en) Method and apparatus for processing textile fibers
US1873279A (en) Apparatus for manufacture of sheet material
US3729777A (en) System for opening crimped multifilament bands
JPH02216224A (en) Lateral belt apparatus arranged at card outlet
GB491820A (en) Improvements in or relating to dough-lapping machines
US3418697A (en) Auxiliary transfer rolls for textile card licker-in
US3136006A (en) Textile sliver drafting machines
US4161054A (en) Method for continuously fulling and working textile material in rope form