US3815461A - Apparatus for chopping strand - Google Patents
Apparatus for chopping strand Download PDFInfo
- Publication number
- US3815461A US3815461A US30096072A US3815461A US 3815461 A US3815461 A US 3815461A US 30096072 A US30096072 A US 30096072A US 3815461 A US3815461 A US 3815461A
- Authority
- US
- United States
- Prior art keywords
- roll
- blade
- strand
- drive
- axis
- 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
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Images
Classifications
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01G—PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
- D01G1/00—Severing continuous filaments or long fibres, e.g. stapling
- D01G1/02—Severing continuous filaments or long fibres, e.g. stapling to form staple fibres not delivered in strand form
- D01G1/04—Severing continuous filaments or long fibres, e.g. stapling to form staple fibres not delivered in strand form by cutting
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B37/00—Manufacture or treatment of flakes, fibres, or filaments from softened glass, minerals, or slags
- C03B37/10—Non-chemical treatment
- C03B37/16—Cutting or severing
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S83/00—Cutting
- Y10S83/913—Filament to staple fiber cutting
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T83/00—Cutting
- Y10T83/465—Cutting motion of tool has component in direction of moving work
- Y10T83/4766—Orbital motion of cutting blade
- Y10T83/4795—Rotary tool
- Y10T83/483—With cooperating rotary cutter or backup
- Y10T83/4838—With anvil backup
- Y10T83/4841—With resilient anvil surface
Definitions
- a holddown roll having a tapered nose and of an axial length intermediate that of the back-up roll and blade roll is brought into pressure engagement with the backup roll after the initial strand turn is taken.
- the drive of the blade roll and back-up roll at the filament pull speed of the bushing is quickly achieved as the strand guide, aligned with the blade roll, directs the strand along a helical path and into the blade roll.
- This invention relates to apparatus for severing strands into relatively short lengths and is particularly applicable to the severing of glass fiber strands made up of gathered filaments as a process continuous with the formation of those filaments.
- a chopper particularly adapted for direct chop applications is arranged to improve the strand handling characteristics during starting of a run by having a back-up roll having an axial length substantially greater than the axial length of the bladeroll whereby strand turns can be started on the cantilevered free end of the back-up roll.
- a pressure roll is provided in order to enhance the frictional adhesion of the strands on the back-up roll.
- the effective axial length of the pressure roll is less than that of the back-up roll so that free ends of the strand can be brought into engagement with the back-up roll conveniently. That effective axial length is also longer than the blade roll so that the strands can be secured prior to the initiation of chopping.
- a tapered end on the pressure roll facilitates the introduction and the initial gripping of the strands.
- Guides aligned with the blade roll on the strand lead-in side of the back-up roll cause the strand to track along a helical path along the axial length of the back-up roll into alignment with the blade roll as the pulling of the strand is started.
- FIG. 1 is a diagrammatic front elevation of one form of the apparatus and its associated equipment for drawing continuous glass filaments from a plurality of DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
- aplurality of fiber forming bushings 11 issue filaments 12 of molten glass, in the case where strands of glass fibers are being chopped, which are drawn at speeds of the order of thousands of feet per minute over a size applicator 13 to a gathering wheel 14 which forms strands 15.
- These strands are guided by guide wheels 16 in parallel paths to chopper 17 having guide wheels 18.
- Roll 19 is mounted on shaft 23 supported in pillow block 24 so that it extends as a cantilever from chopper frame 25.
- Pressure roll shaft 26 has bearings mounted on lever 27 to mount roll 22 in a cantilivered or overhung fashion. Strands 15 are chopped as they are carried by roll 19 into a region at the upper face' of the roll engagedby blades 28 mounted to protrude radially from blade roll 29.
- -Shaft 31 supports blade roll 29 as a cantilever extending from frame 25 and in turn is mounted in a pillow block 32 (FIG. 2) mounted for vertical adjustment to move shaft 31 toward and away from the shaft 23 to move blade roll 29 with respect to back-up roll 19.
- a tapered nose 36 on the free endof pressure roll 22 guides strand into the pulling region between the right circular surfaces of the effective length of pressure roll 22 and back-up roll l9.
- the effective length of the pressure roll is about 5% inches while the back-up roll 19 is about 5% inch long and the blades 28 have a 2% inch long cutting edge.
- the tapered nose 36 in the embodiment of FIG. 4 is approximately 1 inch long while the remaining 4 inches of its length is straight and parallel to the back-up roll 19' of about 7 inches axial length and blade roll 29 having blade cutting edges about 2% inches long.
- Blades 28 are of trapezoidal plan form with the sharpened edge on the minor base of the trapezoid and the major base fitting into slots in the core 37 of the blade roll 29 best seen in the sectional position of FIG. 3.
- Annular blade retainers 38 have inwardly directed flanges 39 with tapers matching the incline of the trapezoidal blades and are secured to the outer faces of core sources and advancing those filaments through the chopper to a collection conveyor;
- a blade roll cover 42 finishes each end face of the blade roll 29.
- the urethanefacing 21 on back-up roll 19 wears under the blades 28. Such wear is accommodated in part by arranging for relative movement between the blade roll 28 and the back-up roll 19.
- Back-up roll 19 can be reversed so that its strand starter region, that region unobstructed by the blades 28, can be interchanged with its chopping region, that portion contacted by the blades. Further, the urethane facing 21 can be replaced.
- the back-up roll is made up of a pair of hubs 43 which are separable from the drum 44 on which the facing 21 is secured. Hubs 43 can be fitted with either hub on the inner end of back-up roll shaft 23 and thus can be reversed by removal of the equipment outboard of the shaft and threaded collar 45 securing the outermost hub.
- Adjustment between the blade roll 28 and back-up roll I9 is by movement of the blade roll relative to frame 25.
- Pillow block 32 for blade roll shaft 31 is mounted on a slide plate 46 guided in ways 47 for vertical motion relative to frame 25.
- a vernier type precision lead screw drive 48 is coupled between plate 46 and frame 25 in a manner to avoid any misalignment in the ways.
- the blade roll position can be adjusted to compensate for wear, particularly of the urethane coating on the back-uproll, without loss of alignment of rolls l9 and 29.
- the light contact of the'blade roll with the back-up roll has been augmented with a separate positive drive for each roll.
- Prior choppers drive but one roll and relied on the penetrating contact to drive the other roll from the driven roll.
- the angular speed of the shaft for the back-up roll must be increased relative to the speed of the blade roll to maintain the linear speed of the effective circumferences of the blade cutting edges and the reduced diameter back-up surface 21 constant.
- Strand 15 is chopped between the generally vertically aligned blade roll 29 and backup roll 19 and issues tangentially from between those rolls along a generally horizontal trajectory as chopped strand 49.
- This horizontal trajectory enables the strand which has advanced to the chopping station at the filament pulling speed to decelerate during its flight so that its impact on the collecting surface 51 is reduced-from the usual impact of downwardly directed chopped strand.
- the trajectory from chopping station to collecting surface 51 can be about 4 feet long to provide for retardation by the drag on the chopped strand of ambient atmosphere where the pull rate and lineal surface speed of roll 19 is between about 2,600 and 4,700 feet per minute. Further reduction of impact is achieved by advancing the collecting'surface 51 with a component of motion parallel to the trajectory at its point of impact as by employing an endless conveyor belt trained over head pulley 52.
- back-up roll 19 The mounting of the back-up roll 19, hold-down pressure roll 22 and blade roll 29 as cantilevers having common open ends affords access for lacing strands into the chopper on start-up. As best seen in FIGS. .3 and 4 the lacing is further facilitated by proportioning the lengths of the rolls whereby a gripping of the strands occurs before they are carried to the chopper blades.
- Back-up roll 19 is initially engaged by strands wrapped around its urethane face 21.
- the strands are placed in the guide wheels 18 which are in pulling alignment with blade roll 29. Since the strands tend to follow a straight path they initially define a helical path to the protruding end of roll 19 outboard of the pulling region between roll 19 and pressure roll 22 and are quickly drawninb'oard of roll 19 to the chopping region under blades 28.
- the pressure roll 22 has a frusto conical nose 36 on its free end to enhance the ease of introduction of strands into the pulling area between its effective pressure length of its constant diameter portion and the back-up roll 19.
- Two embodiments of the pressure roll are disclosed in FIGS. 3 and 4. in FIG. 3'strands canbe started with the chopper running at pulling speed.
- An auxiliary strand starting mechanism is provided in the form of a cone 53 having a starting roll 54 bearing on its uppermost face portion so that the cone 53, which rotates with and is mounted upon the back-up roll 19 and its shaft 23, receives strand near its apex and thus at a low peripheral speed and advances that strand along the cone to the back-up roll surface 21 with which it is continuous.
- This embodiment of the holddown or pressure roll 22 employs a pressure roll having an effective length approaching the length of the backup roll.
- the frusto conical nose portion 36 has its base short of the outermost limit of the back-up roll 19 and its outermost portion overlying the starter cone 53.
- a strand started on cone 53 is admitted to the pull region between starting roll 54 and cone 53 by the frusto conical outermost portion 55 of roll 54, then advanced at an increasing lineal speed as it climbs to the greater diameter of the inner portion of the starting cone 53 driven at the speed of rotation to provide the desired pull rate as the surface speed of back-up roll 19.
- the strand under the impetus of guides 18 transfers from cone 53 to roll 19 and shortly passes the nose 36 to the pull region beneath pressure roll 22. It continues its advance axially of backup roll 19 until it is aligned with its guide 18. This arrangement permits the introduction of strand to the chopper while it is running at speed.
- Starting roll 54 provides means of establishing traction between the strand l5 and-the driving elements of the chopper. Since glass fibers are rather abrasive and the surface of cone 53 is relatively hard, the starting roll 54 is made flexible and readily replaceable either in whole or part by making it of a resilient material such as polyurethane or rubber in stacked disc form. The discs 56 readily conform to the cone 53 when subjected to relatively light pressure and can be replaced individually when worn.
- Starting roll 54 is mounted on a bracket 57 secured to the frame 25 in vertical alignment with the back-up roll and blade roll shaft axes so that the axes of the three roll fall in a common place.
- Bracket 57 includes a suitable bracket 58 for the roll 54 to sustain it parallel to the face of the starting cone in condition for free rotation over that face.
- Telescoping elements 59 and 61 permit the bracket 58 and roll 54 to be moved toward and away from the starting cone under the influence of adjusting means 62 which can also clamp the properly positioned elements.
- FIG. 4 correspond generally to those of the other figures and have been designated by the previously employed reference characters with primes added.
- the pressure roll 22' is shorter than the back-up roll 19 so that the extreme of its nose 36' is short of the outer extreme of back-up roll 19'.
- This arrangement affords an unobstructed region over which strand can be wrapped manually to initiate drawing and chopping.
- the operator grasps the strand as in a normal fiber forming procedure as it issues from the sizing applicator l3, laces it over gathering wheel 14 and guide wheels 16 to chopper guide wheels 18' and winds the fiber approximately 180 around the unobstructed end of the back-up roll 19. He starts the motor which drives the roll 19 at this time so that as the back-up roll 19' begins to turn it carries the strand under the hold-down roll 22' and thence to the blade roll 29.
- the chopper provides the drawing force for the strands and their filaments eminating from the bushing, and since the diameter of the filaments is a function of the drawing speed, the strands must be started with a gradual acceleration.
- a stationary or slowly rotating back-up roll is required while the starter cone 53 of FIGS. 2 and 3 provides accelerating means. The first portion of acceleration of the strand by the chopper will produce oversize filaments and strands until the chopper reaches its drawing speed.
- the slow speed start of strands from a multiplicity of bushings requires the strands to be laced in sequence.
- tolerable strand acceleration can be achieved employing the starter cone 53 while the back-up roll 19 is running at rated filament drawing speed.
- a strand cannot be laced into the chopper running at rated filament drawing speed since there is no means of gradually accelerating the strand under those conditions. Accordingly, where a plurality of strands are to be laced from different bushings, the first strand can be laced and the chopper started.
- Succeeding strands are started by maintaining sufficient lineal speed on the surface of back-up roll 19' to avoid loss of the prior laced strands without imposing so great a speed that the wrap of the succeeding strands when taken up by the pull of backup roll 19' will disrupt either the started strands or the strand being started.
- the 6' chopper can be brought up to speed and the chopped product collected.
- Both the back-up roll 19 and blade roll 29 are driven through variable speed drives.
- a variable speed motor in the base drives a V belt 63 as best seen in FIG. 4 to a pulley 64 on a main drive shaft 65 mounting a spur gear 66 engaging spur gear 67 on jack shaft 68.
- Jack shaft 68 drives pulley 69 for V belt 71 driving pulley 72 and blade roll shaft 31 to drive the blade roll 29 and vary its speed according to the speed of drive motor.
- the belt drive to pulley 72 accommodates the movement of blade roll 29 and its shaft 31.
- Spring loaded tensioner 73 carries an idler pulley 74 to'maintain tension in V belt 71.
- Main drive shaft 65 also mounts variable pitch pulley 75 driving variable speed V belt 76 trained over variable pitch pulley 77 on back-up roll shaft 23.
- V belt 76 trained over variable pitch pulley 77 on back-up roll shaft 23.
- adjustment of the pitch of pulleys 75 and 77 afford adjustment of the speed of the back-up roll shaft 23 relative to main drive shaft 65 and to blade roll shaft 31.
- the pulling speed can be adjusted and the relative speed of the back-up roll 19 and blade roll 29 can be adjusted with a single motor drive. 1
- Guide wheels 18 reciprocate across the feed path of the strands to distribute wear on the blades 28 and rolls.
- a gear motor 78 (see' FIGS. 2 and 3) drives an eccentric 79 coupled to a line 81 pivoted on frame 25.
- a second link 82 parallel to link 81 extends to a tie link 83 carrying at its free end a mounting bracket 84 for two staggered guide wheel brackets 85. Rotation of the motor eccentric 79 oscillates link 81 to cause reciprocation of tie link 83 and the guide wheels in the general direction of the length of the tie link.
- the range of reciprocation is defined by the width of the chopping region, the length of the cutting edges of blades 28, since the inner most strand 15 guided by the inner groove of the lower guide wheel 18 should not be directed closer to the frame 25 than the inner limit of blades 28 while the outermost strand l5 guided by the outer groove of the upper guide wheel 18 should not be carried further from the frame than the spacing of the outer limit of blades 28 from the frame.
- strand can be chopped with the relative spacing of the blades 28 and back-up roll 19 such as to provide substantial penetration of surface 21 and in such instances only one of the shafts 23 and 31 need be driven positively.
- the spacing of shafts 23 and 31 can be fixed and no relative adjustment in driving speed of those shafts is necessary when so fixed.
- Various strand guide mechanisms other than those disclosed can be employed. Accordingly, it is to be understood that the above description is to be read as illustrative of the invention and not in a restrictive sense.
- a chopper for cutting continuous strands of fibers into short lengths including a frame, a blade roll cantilever mounted for rotation on said frame to extend one end free and to be rotatable about its cylindrical axis; a plurality of blades mounted on said blade roll extending generally parallel to the axis thereof and protruding generally radially therefrom; a back-up roll cantilever mounted for rotation on said frame to extend one end free and to be rotatable about its cylindrical axis, said back-up roll axis being parallel to said blade roll axis;
- said blade roll and said back-up roll being so spaced that said blades are engageable with said working face to define a chopping region; said working face proximate the free end of said back-up roll extending beyond the region engageable by said blades whereby strand can be engaged with said working face and free of said blades in a region of the working face proximate said blade roll and intersected by the plane defined by said blade roll and back-up roll axes at the free end of said back-up roll; and a pressure roll, said pressure roll having a cylindrical surface engaged with said back-up roll for an axial length at least including the axial length of said chopping region and short of the free end of said back-up roll whereby strand can be engaged with said working face and free of said pressure roll at the free end of said back-up roll and strand is engaged by and passes between said back-up roll and said pressure roll when said strand passes through said chopping region.
- a chopper according to claim I wherein said working face proximate the free-end of said back-up roll extends beyond the chopping region a distance at least equal to the length of the chopping region parallel to the roll axes.
- a chopper according to claim 1 wherein strand is advanced generally normal to the axes of said back-up roll from a first side; and said pressure roll is cantilever mounted for rotation on said frame to extend one end free and to be rotatable about its cylindrical axis.
- a chopper according to claim 1 including means for adjusting the spacing between said blade roll axis and said back-up roll axis.
- a chopper according to claim 6 wherein said adjusting means comprises a slide; ways for said slide secured to said frame and mounted to define slide motion parallel to the plane defined by the axes of said blade roll and said back-up roll and normal to said axes; and support means for one of said rolls mounted on said slide.
- a chopper for cutting continuous strands of fibers into short lengths including a frame, a blade roll cantifor accommodating displacement of said slide along lever mounted for rotation on said frame to extend one end free and to be rotatable about its cylindrical axis; a plurality of blades mounted on said blade roll extending generally parallel to the axis thereof and protruding generally radially therefrom; a back-up roll cantilever mounted for rotation on said frame to extend one end free and to be rotatable about its cylindrical axis, said back-up roll axis being parallel to said blade roll axis; and a cylindrical working face on said back-up roll; said blade roll and said back-up roll being so spaced that said blades are engageable with said working face to define a chopping region; said working face proximate the free end of said back-up roll extending beyond the region engageable by said blades whereby strand can be engaged with said working face and free of said blades in a region of the working face proximate said blade roll and
- a chopper according to claim 8 including a variable speed coupling in one of said drive trains whereby the relative rotational speed of said blade roll and said back-up roll can be adjusted.
- a chopper according to claim 9 includes means for adjusting the spacing between said blade roll axis and said back-up roll axis.
- a chopper including a slide; ways for said slide secured to said frame and mounted to define slide motion parallel to the plane defined by the axes of said blade roll and said back-up roll and normal to said axes; support means for said blade roll mounted on said slide; means to advance and retract said slide along said ways; a drive; a first drive train from said drive to said blade roll to drive said roll in rotation about its axis; take-up means in said first drive said ways; a second drive train from said drive to said back-up roll to drive said roll in rotation about its axis; and a variable speed coupling in said second drive train to provide means to adjust the rotational speed of said back-up roll relative to the speed of said blade roll.
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Geochemistry & Mineralogy (AREA)
- Manufacturing & Machinery (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Organic Chemistry (AREA)
- Textile Engineering (AREA)
- Preliminary Treatment Of Fibers (AREA)
- Manufacture, Treatment Of Glass Fibers (AREA)
- Treatment Of Fiber Materials (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
Priority Applications (10)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US30096072 US3815461A (en) | 1972-10-26 | 1972-10-26 | Apparatus for chopping strand |
GB4926673A GB1422857A (en) | 1972-10-26 | 1973-10-23 | Apparatus for chopping strand of fibres into short lengths |
NL7314592A NL7314592A (it) | 1972-10-26 | 1973-10-24 | |
IT5330273A IT994743B (it) | 1972-10-26 | 1973-10-24 | Apparecchio per spezzettare trefolo |
DE19732353895 DE2353895B2 (de) | 1972-10-26 | 1973-10-24 | Vorrichtung zum zerschneiden von glasstraengen |
FR7337948A FR2204715B1 (it) | 1972-10-26 | 1973-10-24 | |
BE137061A BE806511A (fr) | 1972-10-26 | 1973-10-25 | Appareil en vue de hacher des torons |
CA184,248A CA1003625A (en) | 1972-10-26 | 1973-10-25 | Apparatus for chopping strand |
BR841873A BR7308418D0 (pt) | 1972-10-26 | 1973-10-26 | Cortador de cordoes continuos |
JP12001373A JPS5434195B2 (it) | 1972-10-26 | 1973-10-26 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US30096072 US3815461A (en) | 1972-10-26 | 1972-10-26 | Apparatus for chopping strand |
Publications (1)
Publication Number | Publication Date |
---|---|
US3815461A true US3815461A (en) | 1974-06-11 |
Family
ID=23161334
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US30096072 Expired - Lifetime US3815461A (en) | 1972-10-26 | 1972-10-26 | Apparatus for chopping strand |
Country Status (10)
Country | Link |
---|---|
US (1) | US3815461A (it) |
JP (1) | JPS5434195B2 (it) |
BE (1) | BE806511A (it) |
BR (1) | BR7308418D0 (it) |
CA (1) | CA1003625A (it) |
DE (1) | DE2353895B2 (it) |
FR (1) | FR2204715B1 (it) |
GB (1) | GB1422857A (it) |
IT (1) | IT994743B (it) |
NL (1) | NL7314592A (it) |
Cited By (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4048861A (en) * | 1976-02-02 | 1977-09-20 | Johns-Manville Corporation | Device for oscillating a rotating body along its rotational axis |
US4163653A (en) * | 1978-08-28 | 1979-08-07 | Owens-Corning Fiberglas Corporation | Method and apparatus for forming and collecting discrete fibers and/or strands |
US4175939A (en) * | 1977-07-11 | 1979-11-27 | Nitto Boseki Co., Ltd. | Method and apparatus for introduction of glass filament strand onto feed roller of chopped glass filament strands manufacturing system |
US4194896A (en) * | 1978-08-28 | 1980-03-25 | Owens-Corning Fiberglas Corporation | Method and apparatus for forming glass filaments |
US4249441A (en) * | 1979-03-09 | 1981-02-10 | Johns-Manville Corporation | Apparatus for chopping strand |
US4411180A (en) * | 1980-09-12 | 1983-10-25 | Vetrotex Saint-Gobain | Process and device for introduction of a continuous yarn in a cutting machine |
US5678774A (en) * | 1995-12-18 | 1997-10-21 | Etc. Industries Inc. | Fiberglass cutting apparatus and method |
US5954278A (en) * | 1998-03-31 | 1999-09-21 | Etc. Industries, Inc. | Fiberglass cutting apparatus and method |
US20030136238A1 (en) * | 1998-08-04 | 2003-07-24 | Manville International, Inc. | Fiber chopper apparatus and method |
US6598814B2 (en) | 2001-01-26 | 2003-07-29 | Johns Manville International, Inc. | Fiber chopper |
US20040025653A1 (en) * | 2002-08-08 | 2004-02-12 | Randall Clark Bascom | Fiber chopper and method of chopping |
US20050138965A1 (en) * | 2003-12-31 | 2005-06-30 | Freeman Charles J. | Measurement of the electrical resistance of a molten glass |
EP1741812A2 (en) * | 2005-07-06 | 2007-01-10 | Johns Manville International, Inc. | Strand oscillator assembly for choppers and method |
US20080115537A1 (en) * | 2004-10-07 | 2008-05-22 | Saint-Gobain Vetrotes France Sa | System for Making Chopped Strands |
EP1964950A2 (en) | 2007-03-02 | 2008-09-03 | Johns Manville | Method for chopping unwound filaments and coated chopper blades |
US20090193852A1 (en) * | 2005-07-22 | 2009-08-06 | Philippe Boissonnat | Automatic Strand Take-Up Installation |
US20100139326A1 (en) * | 2004-06-28 | 2010-06-10 | Saint-Gobain Vetrotex France S.A. | Automatic yarn-gripping installation |
US20110008482A1 (en) * | 2007-05-11 | 2011-01-13 | Dominique Font | System for the manufactur of chopped strands made of thermoplastic material |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5314839A (en) * | 1976-07-20 | 1978-02-09 | Nitto Boseki Co Ltd | Cutting apparatus for long fiber |
JPS5834713A (ja) * | 1981-08-14 | 1983-03-01 | Ocean Cable Co Ltd | 金属テ−プ側縁切落し屑切断機 |
JPS5834712A (ja) * | 1981-08-14 | 1983-03-01 | Ocean Cable Co Ltd | 金属テ−プのトリミング屑処理装置 |
DE59303694D1 (de) * | 1992-02-08 | 1996-10-17 | Hoechst Ag | Verfahren und Vorrichtung zum kontinuierlichen Zerschneiden von band- oder strangförmigem Gut |
DE19912297C1 (de) * | 1999-03-19 | 2000-06-29 | Hobas Engineering Gmbh Klagenf | Beschickungsarm |
CN110420889B (zh) * | 2019-08-13 | 2024-06-18 | 浙江亿龙检测技术有限公司 | 一种轴承滚子生产检测流水线 |
CN113122963A (zh) * | 2021-05-06 | 2021-07-16 | 常州万容新材料科技有限公司 | 一种ptfe纤维切断装置 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3117376A (en) * | 1960-04-18 | 1964-01-14 | Ibis Entpr Ltd | Means for depositing roving in fiber-resin laminate |
US3283633A (en) * | 1963-09-25 | 1966-11-08 | Windmoeller & Hoelscher | Apparatus for producing transverse offset perforations on web fabric |
US3731575A (en) * | 1971-11-08 | 1973-05-08 | Owens Corning Fiberglass Corp | Chopper for linear material |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE505323A (it) * | 1950-11-22 | 1900-01-01 | ||
US3508461A (en) * | 1967-10-04 | 1970-04-28 | Owens Corning Fiberglass Corp | Chopper for glass strands |
BE792085A (fr) * | 1971-11-30 | 1973-03-16 | Fibreglass Ltd | Machine a sectionner en longueur des torons et analogues |
-
1972
- 1972-10-26 US US30096072 patent/US3815461A/en not_active Expired - Lifetime
-
1973
- 1973-10-23 GB GB4926673A patent/GB1422857A/en not_active Expired
- 1973-10-24 IT IT5330273A patent/IT994743B/it active
- 1973-10-24 NL NL7314592A patent/NL7314592A/xx unknown
- 1973-10-24 DE DE19732353895 patent/DE2353895B2/de not_active Ceased
- 1973-10-24 FR FR7337948A patent/FR2204715B1/fr not_active Expired
- 1973-10-25 BE BE137061A patent/BE806511A/xx not_active IP Right Cessation
- 1973-10-25 CA CA184,248A patent/CA1003625A/en not_active Expired
- 1973-10-26 JP JP12001373A patent/JPS5434195B2/ja not_active Expired
- 1973-10-26 BR BR841873A patent/BR7308418D0/pt unknown
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3117376A (en) * | 1960-04-18 | 1964-01-14 | Ibis Entpr Ltd | Means for depositing roving in fiber-resin laminate |
US3283633A (en) * | 1963-09-25 | 1966-11-08 | Windmoeller & Hoelscher | Apparatus for producing transverse offset perforations on web fabric |
US3731575A (en) * | 1971-11-08 | 1973-05-08 | Owens Corning Fiberglass Corp | Chopper for linear material |
Cited By (31)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4048861A (en) * | 1976-02-02 | 1977-09-20 | Johns-Manville Corporation | Device for oscillating a rotating body along its rotational axis |
US4175939A (en) * | 1977-07-11 | 1979-11-27 | Nitto Boseki Co., Ltd. | Method and apparatus for introduction of glass filament strand onto feed roller of chopped glass filament strands manufacturing system |
US4163653A (en) * | 1978-08-28 | 1979-08-07 | Owens-Corning Fiberglas Corporation | Method and apparatus for forming and collecting discrete fibers and/or strands |
US4194896A (en) * | 1978-08-28 | 1980-03-25 | Owens-Corning Fiberglas Corporation | Method and apparatus for forming glass filaments |
FR2434786A1 (fr) * | 1978-08-28 | 1980-03-28 | Owens Corning Fiberglass Corp | Procede et appareil de formage de filaments de verre |
US4249441A (en) * | 1979-03-09 | 1981-02-10 | Johns-Manville Corporation | Apparatus for chopping strand |
US4411180A (en) * | 1980-09-12 | 1983-10-25 | Vetrotex Saint-Gobain | Process and device for introduction of a continuous yarn in a cutting machine |
US5678774A (en) * | 1995-12-18 | 1997-10-21 | Etc. Industries Inc. | Fiberglass cutting apparatus and method |
US5954278A (en) * | 1998-03-31 | 1999-09-21 | Etc. Industries, Inc. | Fiberglass cutting apparatus and method |
US6708592B2 (en) * | 1998-08-04 | 2004-03-23 | Johns Manville International, Inc. | Fiber chopper apparatus and method |
US20030136238A1 (en) * | 1998-08-04 | 2003-07-24 | Manville International, Inc. | Fiber chopper apparatus and method |
US6598814B2 (en) | 2001-01-26 | 2003-07-29 | Johns Manville International, Inc. | Fiber chopper |
US20040025653A1 (en) * | 2002-08-08 | 2004-02-12 | Randall Clark Bascom | Fiber chopper and method of chopping |
US7168355B2 (en) * | 2002-08-08 | 2007-01-30 | Johns Manville | Fiber chopper and method of chopping |
US20070068355A1 (en) * | 2002-08-08 | 2007-03-29 | Johns Manville International, Inc. | Fiber chopper and method of chopping |
US7594460B2 (en) | 2002-08-08 | 2009-09-29 | Johns Nanville | Method of controling biasing force before and during chopping |
US20050138965A1 (en) * | 2003-12-31 | 2005-06-30 | Freeman Charles J. | Measurement of the electrical resistance of a molten glass |
US20100139326A1 (en) * | 2004-06-28 | 2010-06-10 | Saint-Gobain Vetrotex France S.A. | Automatic yarn-gripping installation |
US20080115537A1 (en) * | 2004-10-07 | 2008-05-22 | Saint-Gobain Vetrotes France Sa | System for Making Chopped Strands |
US8720233B2 (en) | 2004-10-07 | 2014-05-13 | Ocv Intellectual Capital, Llc | System for making chopped strands |
EP1741812A2 (en) * | 2005-07-06 | 2007-01-10 | Johns Manville International, Inc. | Strand oscillator assembly for choppers and method |
EP1741812A3 (en) * | 2005-07-06 | 2008-07-16 | Johns Manville International, Inc. | Strand oscillator assembly for choppers and method |
US20070245868A1 (en) * | 2005-07-06 | 2007-10-25 | Johns Manville | Strand oscillator assembly for choppers and method |
US7603933B2 (en) | 2005-07-06 | 2009-10-20 | Johns Manville | Strand oscillator assembly for choppers |
US7252026B2 (en) * | 2005-07-06 | 2007-08-07 | Johns Manville | Strand oscillator assembly for choppers and method |
US20070006696A1 (en) * | 2005-07-06 | 2007-01-11 | Kempski Douglas J | Strand oscillator assembly for choppers and method |
US20090193852A1 (en) * | 2005-07-22 | 2009-08-06 | Philippe Boissonnat | Automatic Strand Take-Up Installation |
US8627686B2 (en) | 2005-07-22 | 2014-01-14 | Ocv Intellectual Capital, Llc | Automatic strand take-up installation |
EP1964950A2 (en) | 2007-03-02 | 2008-09-03 | Johns Manville | Method for chopping unwound filaments and coated chopper blades |
US20080210066A1 (en) * | 2007-03-02 | 2008-09-04 | Russell Donovan Arterburn | Method for chopping unwound items and coated chopper blades |
US20110008482A1 (en) * | 2007-05-11 | 2011-01-13 | Dominique Font | System for the manufactur of chopped strands made of thermoplastic material |
Also Published As
Publication number | Publication date |
---|---|
BE806511A (fr) | 1974-04-25 |
JPS5434195B2 (it) | 1979-10-25 |
DE2353895A1 (de) | 1974-05-16 |
DE2353895B2 (de) | 1976-10-07 |
BR7308418D0 (pt) | 1974-08-15 |
NL7314592A (it) | 1974-05-01 |
CA1003625A (en) | 1977-01-18 |
GB1422857A (en) | 1976-01-28 |
FR2204715A1 (it) | 1974-05-24 |
IT994743B (it) | 1975-10-20 |
JPS4977281A (it) | 1974-07-25 |
FR2204715B1 (it) | 1976-04-30 |
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