US3678967A - Shedding motion for a weaving machine - Google Patents

Shedding motion for a weaving machine Download PDF

Info

Publication number
US3678967A
US3678967A US71578A US3678967DA US3678967A US 3678967 A US3678967 A US 3678967A US 71578 A US71578 A US 71578A US 3678967D A US3678967D A US 3678967DA US 3678967 A US3678967 A US 3678967A
Authority
US
United States
Prior art keywords
shed
filling
needle
carrier
withdrawing carrier
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
US71578A
Other languages
English (en)
Inventor
Othmar Bruhwiler
Anton Egloff
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.)
Georg Fischer AG
Original Assignee
Georg Fischer AG
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 Georg Fischer AG filed Critical Georg Fischer AG
Application granted granted Critical
Publication of US3678967A publication Critical patent/US3678967A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03C—SHEDDING MECHANISMS; PATTERN CARDS OR CHAINS; PUNCHING OF CARDS; DESIGNING PATTERNS
    • D03C13/00—Shedding mechanisms not otherwise provided for

Definitions

  • ABSTRACT refers to a shedding motion in a weaving machine with filling insertion from a filling yarn supply package outside of the warp shed, whereby the end of each pick is pulled out over at least some of the width of the shed and beyond the cloth selvage by a withdrawing carrier.
  • the present invention is characterized in that a pointed bar or rod-shaped member or needle is movably guided between the withdrawing carrier and the fell of the cloth for lengthwise movement approximately parallel to the path of that carrier and is driven in and out of the shed synchronously with the filling insertion, whereby the point of this member on its way out of the shed runs after the tip of the withdrawing carrier until past the cloth selvage.
  • FIG. 1 is a plan view showing part of a shuttleless weaving machine with a withdrawing carrier and a shed forming needle before leaving the shed,
  • FIGS. 2a, 2b and 2c are front views of the shedding motion with shed forming needle, showing different points in the cycle of the movement of the needle point in the shed,
  • FIGS. 3a, 3b and 3c are schematic views of the warp shed and other parts at different positions of the withdrawing carrier taken at line I" in FIG. I, and
  • FIG. 4 is a similar view to FIG. 3, however, taken on line IV of FIG. 1.
  • FIG. 1 Shown in FIG. 1 is a needle guide 2 mounted on the left hand loom side 1 by means of screws 3, said needle guide being parallel ,to a guide 4 of the insertion member 5 with the carrier 6. Furthermore, there are a lay 7 with a reed 8, a reed clamping ledge 9 and a lay sword 10. The warp ends 11 together with the filling threads 12 form the cloth 13. The filling I4 is further inserted after transfer by the withdrawing carrier 6 during which the end 16 of the filling 14 is projecting beyond the clamping point 15 of the taking carrier 6.
  • a shed forming needle 19, adjustable in the driving head 18 is guided, for example, by Oilite bushings 17 in the needle guide 2 for movement to and fro in the direction of the arrow 20.
  • the longitudinal axis of the needle is approximately at the height of the carrier 6 and between the carrier 6 and the fell of the cloth 34.
  • the timing of the needle is coordinated with the filling insertion cycle so that it enters the open shed and thereafter withdraws completely from the shed.
  • the reverse movement of the needle 19 is timed in relation to the withdrawing carrier 6 so that the needle point 21 runs behind the tip of the carrier at a certain distance 22 and passes or exits from the cloth selvage correspondingly later.
  • FIG. 1 shows the situation just before commencement of the needle withdrawal.
  • the depth of penetration of the needle 19 is approximately equivalent to the length of the filling yarn piece 16 plus the distance 22.
  • the distance 22 can be approximately one-third to one-half of the length of the filling piece 16.
  • FIG. 2a shows in front view the shed forming motion during the withdrawal of the needle 19.
  • This FIG. 2 also shows the mounting of the needle guide 2 on the loom side 1 and, by way of example, one drive for the needle.
  • a slide 24 of a lever 25 engages in a driving head 18in such a way that a movement initiated by a cam control, not shown, but synchronized with the main drive shaft, transferred via a push rod 26, is transformed into a sliding movement of the shed forming needle 19. It is also possible to guide the shed forming needle in a different manner and, e.g. to let it carry out a swivel movement.
  • FIG. 2a a position of the needle point 21 is shown in the phase of leaving the warp ends 11.
  • the warp ends 11 slide off the needle point 21 whereupon they meet each other.
  • the needle point 21 has returned past the selvage 23 and is about in its outermost position.
  • the warp ends 11 form one sheet, i.e. the shed is closed; the warp ends might even have crossed in this position.
  • FIG. 26 shows the phase of the needle point 21 entering the open warp shed 27 formed by the warp ends 11.
  • FIGS. 3a, 3b and 3c are schematic views of the shed in different phases of the weaving cycle.
  • the warp ends 11 in the top shed 30 and in the bottom shed 31 lead through heddles 29 and through the reed 8 to the fell of the cloth 34 and form the shed 27. From the fell of the cloth 34 the cloth runs through the temple 28 which, for the sake of simplicity, is not shown in FIG. 1.
  • FIG. 3b shows a later phase. 'The withdrawing carrier 6 with the filling l4 and the filling piece 16 (end of the filling thread). approaches the cloth selvage 23. The warp ends 11 of the top shed 30 and of the bottom shed 31 have approached much closer. The filling 14 and the filling piece 16 are still lying free in the shed 27.
  • FIG. 3c shows the phase immediately before the withdrawing carrier 6 leaves the shed 27.
  • FIG. 4 demonstrates the situation at the same moment as in FIG. 3c, however, at the point of line IV, FIG. 1, that is, within the range of the distance 22 between the tip of the withdrawing carrier and the point 21 of the shed forming needle 19.
  • the warp ends 11 of the top shed 30 and of the bottom shed 31 have already crossed.
  • the filling thread 14 is positioned at the crossing point 32, FIG. 4, and in immediate contact with the warp ends 11 whereby it is fixed.
  • the device according to the preceding description makes it possible to pull out also structured or physically patterned yarns with slubs or loops past the cloth selvage, even though the shed has been closed or crossed throughout enough of its extent to hold the pick. There is no danger of a filling snapback.
  • a shedding motion for a weaving machine of the type in which filling is inserted from a filling yarn package positioned outside of the warp shed, and in which an end of each pick is pulled out over the cloth selvage by a withdrawing carrier characterized in that, a needle-like member (19) of approximately the size of the withdrawing carrier is guided to enter the shed between the withdrawing carrier (6) and the fell of the cloth (34.) for lengthwise movement approximately parallel to the path of the withdrawing carrier (6), and means for 2.
  • a shedding motion as defined in claim 1, wherein the diameter of the needle-like member (19) is determined by the required space (33) between needle (19) and withdrawing carrier(6).

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Looms (AREA)
US71578A 1969-12-04 1970-09-11 Shedding motion for a weaving machine Expired - Lifetime US3678967A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1804769A CH501079A (de) 1969-12-04 1969-12-04 Fachbeeinflussungsvorrichtung an einer Webmaschine

Publications (1)

Publication Number Publication Date
US3678967A true US3678967A (en) 1972-07-25

Family

ID=4430026

Family Applications (1)

Application Number Title Priority Date Filing Date
US71578A Expired - Lifetime US3678967A (en) 1969-12-04 1970-09-11 Shedding motion for a weaving machine

Country Status (6)

Country Link
US (1) US3678967A (US20050192411A1-20050901-C00001.png)
JP (1) JPS4824428B1 (US20050192411A1-20050901-C00001.png)
CH (1) CH501079A (US20050192411A1-20050901-C00001.png)
CS (1) CS149930B2 (US20050192411A1-20050901-C00001.png)
DE (1) DE2044468A1 (US20050192411A1-20050901-C00001.png)
FR (1) FR2071838A5 (US20050192411A1-20050901-C00001.png)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4054159A (en) * 1973-10-04 1977-10-18 Societe Alsacienne De Constructions Mecaniques De Mulhouse Picking method for a shuttleless weaving machine

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5857187U (ja) * 1981-10-09 1983-04-18 オンキヨー株式会社 スピ−カ−用振動板
JPS60241400A (ja) * 1984-05-16 1985-11-30 Matsushita Electric Ind Co Ltd スピ−カ

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2772697A (en) * 1952-08-06 1956-12-04 Dewas Raymond Shuttleless weaving looms
US3232320A (en) * 1962-04-13 1966-02-01 Eilhauer Friedrich Shuttle-less wire weaving loom
US3443602A (en) * 1966-04-15 1969-05-13 Ruti Machinery Work Ltd Device and method for producing a selvedge

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2772697A (en) * 1952-08-06 1956-12-04 Dewas Raymond Shuttleless weaving looms
US3232320A (en) * 1962-04-13 1966-02-01 Eilhauer Friedrich Shuttle-less wire weaving loom
US3443602A (en) * 1966-04-15 1969-05-13 Ruti Machinery Work Ltd Device and method for producing a selvedge

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4054159A (en) * 1973-10-04 1977-10-18 Societe Alsacienne De Constructions Mecaniques De Mulhouse Picking method for a shuttleless weaving machine

Also Published As

Publication number Publication date
CS149930B2 (US20050192411A1-20050901-C00001.png) 1973-08-23
DE2044468A1 (de) 1971-06-09
FR2071838A5 (US20050192411A1-20050901-C00001.png) 1971-09-17
CH501079A (de) 1970-12-31
JPS4824428B1 (US20050192411A1-20050901-C00001.png) 1973-07-20

Similar Documents

Publication Publication Date Title
US3638686A (en) Carriers for filling insertion in a weaving machine
US3952778A (en) Selvage forming device
US3945406A (en) Leno selvedge device and method of forming a leno selvedge
US3621885A (en) Filling cutting device for a weaving machine
US3693668A (en) Pneumatic weft delivery means for shuttleless looms
US2106727A (en) Loom
US3678967A (en) Shedding motion for a weaving machine
US4078586A (en) Method and apparatus for producing a selvage
US3499474A (en) Method and apparatus for forming selvages on cloth
US4006758A (en) Narrow web loom
US3111966A (en) Method and apparatus for simultaneously weaving lengths of fabric
US3315709A (en) Method of and device for feeding weft thread into the gripper of gripper looms
US3347283A (en) Weft control apparatus
US3431951A (en) Loom filling positioner
US3417793A (en) Weaving loom
US2990854A (en) Selvage forming on fabrics
US3626991A (en) Selvage-forming motion operable in conjunction with a filling-cutting mechanism of a shuttleless loom
US3960186A (en) Weft yarn control device
US2902057A (en) Weft needle operating mechanism for loom
US3335761A (en) Weft guiding apparatus
US1515102A (en) Device for introducing the woof by means of a gripping contrivance in looms
US3108617A (en) Loom selvage motion
US2208886A (en) Shuttleless loom
US2652072A (en) Shuttleless loom with continuous weft supply
US3298400A (en) Filling carrier for shuttleless looms