US3113737A - Pneumatic traverse device - Google Patents

Pneumatic traverse device Download PDF

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Publication number
US3113737A
US3113737A US202004A US20200462A US3113737A US 3113737 A US3113737 A US 3113737A US 202004 A US202004 A US 202004A US 20200462 A US20200462 A US 20200462A US 3113737 A US3113737 A US 3113737A
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US
United States
Prior art keywords
casing
bore
piston
fluid pressure
compressed air
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
US202004A
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English (en)
Inventor
Paul D Emerson
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.)
Monsanto Chemicals Ltd
Monsanto Chemical Co
Original Assignee
Monsanto Chemicals Ltd
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
Application filed by Monsanto Chemicals Ltd filed Critical Monsanto Chemicals Ltd
Priority to US202004A priority Critical patent/US3113737A/en
Priority to GB21076/63A priority patent/GB983032A/en
Priority to CH714363A priority patent/CH398402A/fr
Priority to DK276163AA priority patent/DK103657C/da
Application granted granted Critical
Publication of US3113737A publication Critical patent/US3113737A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H54/00—Winding, coiling, or depositing filamentary material
    • B65H54/02—Winding and traversing material on to reels, bobbins, tubes, or like package cores or formers
    • B65H54/28—Traversing devices; Package-shaping arrangements
    • B65H54/283—Traversing devices driven by pneumatic or hydraulic means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/30—Handled filamentary material
    • B65H2701/31—Textiles threads or artificial strands of filaments

Definitions

  • This invention relates to pneumatic traverse devices of the Itype used in the textile industry to displace yarn reciprocally across the face of a bobbin in yarn winding processes. More particularly, the invention relates to e. high speed pneumatic traverse device employing resilient means to reduce impact stresses and to effect uniform winding of yarn on a bobbin.
  • the conventional pneumatic type in general, utilizes compressed air to shuttle a guide-carrying piston back and forth in a tube. Reversal of the piston at the end of each stroke is negotiated by operatively and iluidly connecting the piston to the force of compressed air by valve means.
  • These conventional pneumatic traverse devices have disadvantages.
  • valve and piston components comprising these devices are made of non-resilient or rigid materials. When lcontact is made between these components, they are sub-ject to vibration and a so-called undesirable bounce-back effect. To dampen bounceback tendencies, it is necessary to incorporate special dampening or cushioning means to absorb the impact stresses generated.
  • the consequent delay yields nonuniformly wound yarn packages characterized by the packages having bulges at the ends.
  • a still further object is to provide a high speed pneumatic traverse device which is simple in operation and construction and inexpensive to manufacture.
  • the high speed pneumatic traverse device embodying the invention comprises a piston slidably reciprocable in an elongate bore in a casing.
  • the bore is open to the exterior of the casing through a longitudinal slit formed therein.
  • a guide adapted to carry a yarn exteriorly of the casing and to be operable in the longitudinal slit, is secured to said piston and projects through the slit.
  • the piston and the guide operatively attached thereto are reversibly actuated Iby compressed air for traversing yarn back and forth across the face of a rotating bobbin.
  • the compressed air flows -against the piston and propels it reversibly through said bore when the piston alternately strikes expansible diaphragms clamped in the casing at each end of the bore.
  • the impact of fthe piston with each diaphragm unseats it from its normal seated position on a valve seat formed in the casing.
  • the alternate unseating of the expansible diaphragms from their corresponding valve seats permits compressed air from fluid pressure delivery chambers, defined in the casing at one side of said expansible diaphragms and normally supplied with compressed air to flow into the elongate bore past the valve seats and thus into Contact with the piston.
  • the fluid pressure delivery chambers are constantly in communication with corresponding iluid pressure supply chambers via perforations formed therein while the fluid pressure supply chambers are normally charged with compressed iair from a suitable source of supply thereof.
  • the compressed air exhausts through the longitudinal slit in the casing.
  • FGURE l is a cross-sectional view showing the novel pneumatic traverse device connected to a source of compressed lair;
  • FIGURE 2 is an elevation View showing the novel high speed pneumatic traverse device, on a smaller scale and with portions cut away, in association with a yarn take-up evice; and
  • i HGURE 3 is a plan view showing a preferred construction of the resilient means incorporated lin the novel high lt is an object of this invention to provide a high speed pneumatic traverse device utilizing perforated resilient means to eect reciprocal displacement of a piston by compressed air and to minimize impact stresses encountered during operation.
  • Another object is to provide a high speed pneumatic traverse device which does not require special dampening means ⁇ to reduce so-called bounce-back effect.
  • Another object is to provide a high speed pneumatic traverse device adapted to traverse yarn at a speed of approximately 6000 strokes per minute.
  • a further object is to provide a high speed pneumatic traverse device adapted to effect an instantaneous high volume flow of compressed air past a valve seat to reciprocally move a free traveling piston.
  • the novel pneumatic traverse device as shown in FlGS. l and 2, comprises a tube or barthereof.
  • Each valve assemblage includes a hollow casing 2. formed of sectioned members providing a cavity therein.
  • Tube 1 has an elongate bore 3 therethrough ⁇ and a longitudinal exhaust slit 4 extending through the wall thereof. Slit 4 opens bore 3 to atmosphere.
  • Guide ⁇ 6 projects outwardly of tube 1 through longitudinal slit 4 and has a yarn carrying slot 7 formed therein.
  • Each hollow casing 2 has ⁇ a bore S. Bore 8 is aligned with and open at one end thereof :to bore 3 and open at ⁇ its opposite end to the cavity in its corresponding casing 2.
  • the sectioned members of each casing 2 are clamped together by bolts 9.
  • An annular valve seat 10, arranged coaxially with bore 8, is formed in each hollow casing 2 at said opposite end of each bore 8.
  • a circular resilient diaphragm 1l preferably a nylon reinforced neoprene rubber diaphragm, is clamped at its outer periphery between respective sections of each hollow a casing 2 so as to extend transversely therethrough.
  • Each diaphragm lll has a plurality of spaced pertorations l2 formed therein and has a duid pressure supply chamber 13 ⁇ deiined at one side thereof.
  • Each annular fluid pressure delivery chamber 14 surrounds an annular valve seat l0.
  • the liuid pressure supply chambers 13 are each charged with iluid under pressure through a threaded port l5 extending through the wall of a respective hollow casing 2.
  • Each port l5 is adapted to be connected rto a source of fluid under pressure via a line i6 normally charged with compressed air.
  • a valve i7, -a pressure regulator 18, and a pressure gauge 19 are interposed in line le to control the flow of compressed air to the iiuid pressure supply chambers i3 at a predetermined value.
  • each diaphragm il is positioned in its corresponding sectioned casing 2 so as to be biased into seated engagement against its respective valve seat it? by the force of compressed air in the supply chamber i3 acting thereagainst at one side thereof, while at the opposite side thereof the area of each diaphragm lll that covers its corresponding valve seat iti is open to the ambient atmosphere via the longitudinal exhaust slit 4.
  • Each diaphragm lll is coaxially arranged with its corresponding valve seat it?.
  • the iiuid pressure supply chambers i3 are always open to their corresponding delivery chambers ld through the per'forations l2 in the diaphragms ll.
  • the perforations lf2 are preferably arranged in each respective diaphragm il so that they surround a respective valve seat lt).
  • Piston 5 is normally lubricated by a lubricating medium supplied to the bore 3 through an opening 2@ provided in the wall of tube l. Opening 26 is connected to a line 2l supplied with a lubricant.
  • a yarn 22 from a source of supply is positioned in slot '7 in the yarn guide 6 and is laced therefrom to a bobbin 23 of a yarn take-up device 24.
  • the fluid pressure supply chambers i3 are supplied with compressed air from line le for biasing the respective resilient diaphragms or valves 1l into seated position against their respective valve seats 1t).
  • piston 5 of the traverse device is manually moved in the direction of one of the diaphragms 11 (for purposes of illustration assume it is moved toward the diaphragm il at the left end of tube l as shown in FIG. l of the drawing) with suiiicient force to strike and unseat the diaphragm lll from its seated position on its corresponding valve seat liti.
  • the impact of piston 5 against the diaphragm ll displaces it so as to fully uncover the valve seat lt?.
  • a surge of compressed air from the annular iiuid pressure delivery chamber 14 iiows past the valve seat l@ into bore S and into contact with piston 5.
  • Piston 5 is then propelled by the compressed air through bore 3 in the direction of the diaphragm l1 at the right end of tube l.
  • the compressed air in bore 3 is rapidly exhausted through longitudinal exhaust slit d.
  • Unseated diaphragm ll, after piston 5 moves away, is then immediately seated again by the pressure of the air in the fluid pressure supply chamber 13 acting thereon.
  • Yarn 22, being positioned in slot 7, is thus operatively carried back and forth substantially uniformly across the face of rotating bobbin 23 oi' the talreeup device 24.
  • the improved traverse device as described provides traversing speeds of approximately ⁇ 300D-6000 strokes per minute.
  • FIG. 3 a preferred type ot resilient diaphragm 1l is shown having a plurality of spaced periorations 12 arranged circumferentially on the diaphragm l1 and having a piurality ot mounting holes 25.
  • the novel traverse device is simple in construction and inexpensive to manufacture. Traversing of a yarn may be accomplished at speeds of approximately 3000-6000 strokes per minute by actuation of a movable piston and a pair of resilient diaphragms.
  • a high speed pneumatic traverse device for reciprocating a yarn across the face of a take-up device, said traverse device comprising,
  • said piston having a portion projecting through said slit and being adapted to carry said yarn back forth exteriorly of said casing
  • each of said resilient means having a iiuid pressure supply chamber defined at one side thereof which constantly communicates with a fluid pressure delivery chamber dened at the opposite Side thereof via said perforations in said resilient means,
  • each of said ports opening into a respective uid pressure supply chamber and being adapted to be connected to said line for supplying said iuid pressure supply chamber with compressed air, wherein,
  • valve seats are annular and said iuid pressure delivery chambers encircle said annular valve seats and, wherein said resilient means are coaxially arranged with said annular valve seats in said cavities.
  • a high speed pneumatic traverse device for reciprocating a yarn across the face of a take-up device, said traverse device comprising,
  • each of said circular resilient diaphragms being clamped at their outer peripheries between sections of said casing by said clamping means
  • each of said circular resilient diaphragms having a fluid pressure supply chamber defined at one side thereof which constantly communicates with a fluid pressure delivery chamber dened at the opposite side thereof via said perforations in said circular resilient diaphragm,
  • each of said ports opening into a respective fluid pressure supply chamber and being adapted to be connected to said line for supplying said fluid pressure supply chamber with compressed air
  • the force of the compressed air in each of said fluid pressure supply chambers normally biases said circular resilient diaphragms into seated position on a corresponding annular valve seat and acts to move said piston reciprocally in the longitudinal bore to traverse said yarn when said piston alternately unseats said circular resilient diaphragms by impact therewith and permits compressed air to flow from said fluid pressure delivery chambers into the longitudinal bore past said annular valve seats.
  • a high speed pneumatic traverse device for reciprocating yarn across the face of a take-up device, said traverse device comprising,
  • said piston having a guide portion projecting through said slit and being adapted to carry said yarn back and forth exteriorly of said tubular member
  • each of said annular valve seats being coaxially arranged with and open to the bore of said tubular member and to the cavity within its corresponding sectioned casing
  • each of said resilient diaphragms being clamped at its outer periphery between the sections of a respective sectioned casing by said clamping means
  • each of said resilient means having a fluid pressure supply chamber defined at one side thereof which constantly communicates with an annular lluid pres sure delivery chamber surrounding said annular valve seat and defined at the opposite side thereof via said perforations therein,
  • each of said ports opening into a respective fluid pressure supply chamber and being adapted to be connected to said line for supplying said fluid pressure supply chambers with compressed air, wherein,
  • a high speed pneumatic traverse device for reciprocating yarn across the face of a take-up device comprising,
  • valve assemblage having a sectioned casing with a cavity therein provided at each end of said tube
  • each passage being arranged coaxially with the bore of said tube so that one end thereof opens into said tube and the opposite end opens into said cavity
  • each of said perforated resilient diaphragms having a fluid pressure supply chamber defined at one side thereof which is always open via said perforations therein in said diaphragms to a fluid pressure delivery chamber dened at the opposite side thereof,

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  • Actuator (AREA)
  • Guides For Winding Or Rewinding, Or Guides For Filamentary Materials (AREA)
US202004A 1962-06-12 1962-06-12 Pneumatic traverse device Expired - Lifetime US3113737A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
US202004A US3113737A (en) 1962-06-12 1962-06-12 Pneumatic traverse device
GB21076/63A GB983032A (en) 1962-06-12 1963-05-27 Pneumatic traverse device
CH714363A CH398402A (fr) 1962-06-12 1963-06-07 Dispositif pneumatique de va-et-vient dans une machine à bobiner et à dévider
DK276163AA DK103657C (da) 1962-06-12 1963-06-11 Pneumatiske tværføringsorganer til krydsspolemaskiner.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US202004A US3113737A (en) 1962-06-12 1962-06-12 Pneumatic traverse device

Publications (1)

Publication Number Publication Date
US3113737A true US3113737A (en) 1963-12-10

Family

ID=22748180

Family Applications (1)

Application Number Title Priority Date Filing Date
US202004A Expired - Lifetime US3113737A (en) 1962-06-12 1962-06-12 Pneumatic traverse device

Country Status (4)

Country Link
US (1) US3113737A (da)
CH (1) CH398402A (da)
DK (1) DK103657C (da)
GB (1) GB983032A (da)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3193207A (en) * 1963-09-11 1965-07-06 Ici Ltd Traverse mechanism
US3693899A (en) * 1970-06-22 1972-09-26 Maxam Power Ltd Thread guiding means for yarn winding
WO2003043919A1 (de) * 2001-11-23 2003-05-30 Ditf Deutsche Institute Für Textil- Und Faserforschung Spulvorrichtung

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2548523A (en) * 1949-10-12 1951-04-10 Eastman Kodak Co Pneumatic rapid traverse for winding textile yarns on cones and tubes
US2646228A (en) * 1952-03-13 1953-07-21 Eastman Kodak Co Fluid-operated rapid traverse mechanism for winding strand material

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2548523A (en) * 1949-10-12 1951-04-10 Eastman Kodak Co Pneumatic rapid traverse for winding textile yarns on cones and tubes
US2646228A (en) * 1952-03-13 1953-07-21 Eastman Kodak Co Fluid-operated rapid traverse mechanism for winding strand material

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3193207A (en) * 1963-09-11 1965-07-06 Ici Ltd Traverse mechanism
US3693899A (en) * 1970-06-22 1972-09-26 Maxam Power Ltd Thread guiding means for yarn winding
WO2003043919A1 (de) * 2001-11-23 2003-05-30 Ditf Deutsche Institute Für Textil- Und Faserforschung Spulvorrichtung
US20050029386A1 (en) * 2001-11-23 2005-02-10 Ditf Deutsche Institute Fur Textil-Und Faserforsch Spooling device
US20060169824A1 (en) * 2001-11-23 2006-08-03 Ditf Deutsche Institute Fur Textil-Und Faserforschung Bobbin winding system
US7410116B2 (en) 2001-11-23 2008-08-12 Ditf Deutsche Institute Fur Textil- Under Faserforschung Bobbin winding system

Also Published As

Publication number Publication date
DK103657C (da) 1966-01-31
CH398402A (fr) 1966-03-15
GB983032A (en) 1965-02-10

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