EP0896076A1 - Haarzuführvorrichtung für eine Webmaschine - Google Patents

Haarzuführvorrichtung für eine Webmaschine Download PDF

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Publication number
EP0896076A1
EP0896076A1 EP98401868A EP98401868A EP0896076A1 EP 0896076 A1 EP0896076 A1 EP 0896076A1 EP 98401868 A EP98401868 A EP 98401868A EP 98401868 A EP98401868 A EP 98401868A EP 0896076 A1 EP0896076 A1 EP 0896076A1
Authority
EP
European Patent Office
Prior art keywords
horsehair
receptacles
stores
clamp
gripping
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.)
Withdrawn
Application number
EP98401868A
Other languages
English (en)
French (fr)
Inventor
Fabrice Covet
Vittorio Salvi
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.)
Lainiere de Picardie SA
Lainiere de Picardie BC SAS
Original Assignee
Lainiere de Picardie SA
Lainiere de Picardie BC SAS
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 Lainiere de Picardie SA, Lainiere de Picardie BC SAS filed Critical Lainiere de Picardie SA
Publication of EP0896076A1 publication Critical patent/EP0896076A1/de
Withdrawn legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D47/00—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms
    • D03D47/39—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms wherein cane, straw, slats, material for hair-cloth or similar material is handled

Definitions

  • the invention relates to a feeding device. in the hair of a loom.
  • the fabrics in which hairs are inserted natural, especially tail or mane hair horse, are usually made using shuttle looms.
  • the horsehair is taken from a bunch of horsehair, then transported to the loom at proper, where it is inserted between the weft threads or the fabric warp threads.
  • the hair is removed and transported by forceps single or can be removed by a first forceps and transported by a second clamp to the loom.
  • the stores where the boots are placed of horsehair consist of compartments separated by partitions and having built-up pushers on the bottom a central bow which engages by sliding in two side bows.
  • the device described in this patent application has a piston system for expansion radial bows as and when horsehair housed in the compartments.
  • the hairs will therefore tend to slide on the sides of the compartments.
  • the probability that the clamp grip picks up a horsehair in a given region of a compartment, especially in the central region of this one, will therefore decrease.
  • compartments are generally open and the ends of the hair rest on a region conical in shape. As the sample is drawn, the horsehair become less tight together and therefore have tendency to slip, making removal more difficult in shops.
  • the object of the invention is to remedy these disadvantages, by proposing a device for supplying natural hair, especially mane or tail hair horse, a loom to maintain a constant grip of the hairs.
  • An object of the invention therefore relates to a device supply of horsehair to a loom.
  • the horsehair supply device for a loom weaving comprising a container provided with several stores for receiving horsehair boots; at least one gripper for gripping a horsehair in a store; at least one clip for transporting a horsehair taken to the loom, is characterized in that the stores include means for holding the boots of horsehair under a substantially constant relative pressure at as the hairs are removed.
  • Maintaining a relative pressure substantially constant in stores is obtained according to the invention by causing a decrease in the internal volume of stores that are generally closed.
  • Horsehair removal with the forceps grip even when there are only a few hairs left inside stores, can therefore be done with a efficiency close to that obtained at the start of a manufacturing with full stores.
  • the device of the invention for feeding horsehair to a weaving loom 1 includes a gripper 2, a transport clamp 3 and a container 4 comprising several stores for receiving horsehair boots.
  • the container 4 includes a substantially flat mobile support 5, for example a plate, able to move in the directions indicated in A by conventional means, for example a stepper motor 6.
  • Container 4 can advance each time a horsehair of an amplitude corresponding to the width of a store to pick up the next hair in a store different, and being driven back and forth, thanks to a classic system, to empty the stores of consistently.
  • Each store consists, for example, of a receptacle or box 7 having a general form of parallelepiped delimited by a lower face, a face upper and four side faces.
  • the faces receptacles 7 are planar or substantially planar.
  • the face of the receptacles 7 located in the vicinity of the gripper 2 is open to allow the hair removal 8.
  • the length of the lateral faces of the receptacles 7 will be chosen according to the length of the hair used. We can predict that the length of the faces will be substantially the same or slightly lower than that of horsehair, so that the ends of the hair extend beyond receptacles 7, to facilitate their gripping.
  • a withdrawal can be provided on one faces to leave the hair visible and allow their removal by the gripper.
  • the face receptacles 7 opposite to the gripper 2 is opened. It can be advantageous, especially for better keep horsehair boots in place in stores, to provide that this face is closed.
  • the feeding device includes means for reducing the volume interior of receptacles 7.
  • these means consist of one or more cylinders 9 arranged between the support 5 and receptacles 7 and acting on the face bottom of receptacles 7.
  • the cylinders can act on the face upper receptacles 7, on a side face or on multiple faces at the same time.
  • the cylinders move the faces to which they are connected, giving a character movable on one or more sides of the receptacles 7.
  • the cylinders 9 push up (in the direction of arrow B) the underside of the receptacles 7, which has the effect reduce the interior volume of each receptacle 7.
  • the movable face is common to all receptacles 7.
  • one side mobile can be provided for each receptacle 7, operating independently of each other.
  • the cylinders 9 can be pneumatic or hydraulic.
  • Other displacement systems for example a worm system or an inflatable expandable pocket by a gas, are possible.
  • the device according to the invention further comprises a means of controlling and regulating the operation of cylinders 9, so that the decrease in interior volume receptacles 7 is a function of the number of hairs removed in shops.
  • the container 4 includes a barrel 10 composed of a central axis 10a can rotate in direction D and a ring 10b receiving several stores.
  • the stores have the form of cylindrical receptacles 11 in which are removed the horsehair boots 8.
  • the ends of the cylindrical receptacles 11 located in the vicinity of the gripper 2 are open, to allow hair removal 8.
  • the length of the cylindrical receptacles 11 can be chosen in the same way as described above.
  • the ends of the cylindrical receptacles 11 opposite the gripper 2 can be opened or closed, as indicated above.
  • the means to maintain pressure substantially constant relative within cylindrical receptacles 11 works by decreasing the internal volume of cylindrical receptacles 11.
  • a room is provided at the inside of the central part of each receptacle cylindrical 11 and over most of its length, the volume of this chamber can be increased or decreased.
  • the bedroom includes inside this one or more spiral springs or a pocket expandable inflatable under the action of a gas.
  • a room 12 occupying in the initial state a reduced volume and a chamber 13 whose internal volume has increased are represented.
  • the hair available in cylindrical receptacles 11 are pushed out of the receptacles due to increasing the volume of chamber 12, while remaining trapped under substantially constant pressure thanks to the outer wall of the receptacles 11.
  • the cylindrical receptacles 11 include means of rotation about their longitudinal axis C.
  • the rotation of the receptacles 11 can be obtained simply by the friction of the receptacles on the axis central 10a of the barrel 10 and the rotation thereof.
  • the receptacles 11 rotate according to the same direction of rotation, as shown in the figure 2.
  • the cylinders may include on at least one region of their external wall of the teeth 14.
  • the teeth 14 present on two neighboring cylinders are placed facing each other, at least partially, another by forming a gear system. In that case, each cylinder 11 will rotate in a direction of rotation opposite to that of neighboring cylinders.
  • the device for the invention includes means of adjustment so that a horsehair is taken from a cylindrical receptacle given at a place slightly different from the hair taken in the same receptacle in a previous cycle.
  • the device of the invention comprises a clamp grip for horsehair.
  • pliers can be used.
  • the clamp gripping comprises a means for gripping a horsehair, able to slide along the axis of a support rod, so as to at least partially penetrate a bunch of horsehair deposited in a store; a support surface substantially at the surface of a bundle of hair dropped off at a store; an elastic means of setting temporary support of one end of the gripping means against the bearing surface.
  • the clamp gripping 2 comprises a support rod 15 and a body 18 connected to the support rod 15 by two legs in which two openings are made so that the body 18 to slide along the axis of the support rod 15.
  • the lower end of the support rod 15 is provided with a stop 16 coming, during the removal of a horsehair, lean against the casing 17 of a horsehair store.
  • the lower end of the body 18 has a gripping means consisting of a piece in the form of hook 19 which can at least partially penetrate a bundle of horsehair 8 to collect a horsehair.
  • the hook 19 is removably attached to the body 18, so as to allow its change depending on the hair used.
  • the tip of the hook 19 is of substantially the same size or more small than the diameter of a horsehair, in order to extract only one one hair at a time.
  • the hook has a housing part at its end, for example U-shaped or V-shaped, of substantially similar size or smaller than the diameter of a horsehair, to allow a only horse to stay there.
  • the lower end of the body 18 comprises also an elastic means.
  • the elastic means consists of a spring 20.
  • the spring 20 is a leaf spring. Any other form of spring, for example a coil spring, can be considered.
  • the spring 20 is fixed to the lower end of the body 18 by one of its ends and comprises at the other from its ends a bearing surface.
  • the support surface is provided with means allowing to vary the point of contact between the means of grip and the support surface, each time a horsehair.
  • the surface support consists of a pellet 21 manufactured for example in a material such as rubber, plastic, metal or metal alloy, etc.
  • the clamp 2 also includes an electromagnet 22 fixed on the body 18 which, in the event of a faulty grip, clear the clamp to jump to the next cycle.
  • the electromagnet 22 is set, for example by a PLC, to release the hair removed from the gripper as soon as it is taken by the transport clamp.
  • the elastic means can consist of a piston allowing the displacement of the means gripping with respect to the bearing surface.
  • the point of the hook 19 is placed on the pad 21, the spring 20 not being or slightly compressed in this position.
  • the stop 16 is supported on the casing 17 of the horsehair store. In this position, the pad 21 is substantially at the level of the bristles 8 located in the upper part of the store.
  • the body 18 is then lowered vertically, causing progressive compression of the spring 20.
  • the tip of hook 19 descends at least partially into the bundle of horsehair 8 away from the pad 21.
  • the support rod 15, pressing on the store through the stop 16 remains in the same position.
  • the rod-support 15 and body 18 assembly is then traced back.
  • the spring 20 returns to its initial shape in causing the hook tip 19 to press again against the pad 21.
  • the clamp gripping includes two profiled pads, one of pads being fixed and the other movable.
  • the movable plate is controlled for example by a pressure lever which pushes it against the plate fixes or on the contrary moves away from it.
  • the device according to the invention also comprises a transport clamp to take a horsehair taken from a boot to the loom.
  • a transportable clip is of the type comprising a body connected to a control system and a arms resting on the body acting on a pad pressure and allowing to maintain, cooperating with the arm, the hair taken.
  • the device according to the invention can comprise a gripper and transport clamp. Alternatively, it can include several grippers and several transport clips, to increase speed samples and insertions of the hair into the tissue.
  • the gripping and transport clamps are connected to arms 23 subject to conventional systems cam - pressure roller or any other system equivalent.
  • the device according to the invention comprises means for adjusting the displacement gripper (s), allowing to descend the clamp (s), in the same store, at a position slightly different from the previous cycle.
  • the device according to the invention can comprise also control devices, for example electronic, to interrupt advancement or rotation horsehair stores and / or the operation of pliers when a malfunction is detected.
  • control devices for example electronic, to interrupt advancement or rotation horsehair stores and / or the operation of pliers when a malfunction is detected.
  • the device can also be programmed to stop as soon as a previously determined number of hairs has been inserted into the fabric.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Sheets, Magazines, And Separation Thereof (AREA)
  • Replacing, Conveying, And Pick-Finding For Filamentary Materials (AREA)
  • Auxiliary Weaving Apparatuses, Weavers' Tools, And Shuttles (AREA)
  • Brushes (AREA)
  • Purses, Travelling Bags, Baskets, Or Suitcases (AREA)
  • Looms (AREA)
  • Knitting Machines (AREA)
  • Manufacturing And Processing Devices For Dough (AREA)
  • Advancing Webs (AREA)
EP98401868A 1997-08-05 1998-07-22 Haarzuführvorrichtung für eine Webmaschine Withdrawn EP0896076A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9710030A FR2767146A1 (fr) 1997-08-05 1997-08-05 Dispositif pour l'alimentation en crins d'un metier a tisser
FR9710030 1997-08-05

Publications (1)

Publication Number Publication Date
EP0896076A1 true EP0896076A1 (de) 1999-02-10

Family

ID=9510052

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98401868A Withdrawn EP0896076A1 (de) 1997-08-05 1998-07-22 Haarzuführvorrichtung für eine Webmaschine

Country Status (6)

Country Link
EP (1) EP0896076A1 (de)
CZ (1) CZ240398A3 (de)
FR (1) FR2767146A1 (de)
HU (1) HUP9801790A3 (de)
IT (1) IT1295371B1 (de)
SK (1) SK104998A3 (de)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE177646C (de) *
DE200650C (de) *
DE214550C (de) *
FR377809A (fr) * 1907-05-14 1907-09-16 Heinrich Panitschek Procédé de tissage des tissus de crin et dispositif pour réaliser ce procédé
ITMI930867A1 (it) * 1993-04-30 1994-10-30 Mario Crippa Apparecchiatura atta ad alimentare crine animale in un telaio senza navetta

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE177646C (de) *
DE200650C (de) *
DE214550C (de) *
FR377809A (fr) * 1907-05-14 1907-09-16 Heinrich Panitschek Procédé de tissage des tissus de crin et dispositif pour réaliser ce procédé
ITMI930867A1 (it) * 1993-04-30 1994-10-30 Mario Crippa Apparecchiatura atta ad alimentare crine animale in un telaio senza navetta

Also Published As

Publication number Publication date
HUP9801790A3 (en) 2000-08-28
HUP9801790A2 (hu) 2000-04-28
FR2767146A1 (fr) 1999-02-12
ITMI972367A1 (it) 1999-04-21
IT1295371B1 (it) 1999-05-12
CZ240398A3 (cs) 1999-05-12
SK104998A3 (en) 1999-04-13
HU9801790D0 (en) 1998-09-28

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