EP0013169A1 - Perfectionnement apporté au cylindre peigneur d'un métier de filature à bout libre - Google Patents

Perfectionnement apporté au cylindre peigneur d'un métier de filature à bout libre Download PDF

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Publication number
EP0013169A1
EP0013169A1 EP19790303027 EP79303027A EP0013169A1 EP 0013169 A1 EP0013169 A1 EP 0013169A1 EP 19790303027 EP19790303027 EP 19790303027 EP 79303027 A EP79303027 A EP 79303027A EP 0013169 A1 EP0013169 A1 EP 0013169A1
Authority
EP
European Patent Office
Prior art keywords
combing roller
metallic wire
imaginary
tooth
flange
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.)
Granted
Application number
EP19790303027
Other languages
German (de)
English (en)
Other versions
EP0013169B1 (fr
Inventor
Toshio Yoshizawa
Yoshiaki Yoshida
Katsuaki Sugiura
Noriaki Miyamoto
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.)
Toyota Industries Corp
Original Assignee
Toyoda Jidoshokki Seisakusho KK
Toyoda Automatic Loom Works 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
Priority claimed from JP1979160588U external-priority patent/JPS5718447Y2/ja
Application filed by Toyoda Jidoshokki Seisakusho KK, Toyoda Automatic Loom Works Ltd filed Critical Toyoda Jidoshokki Seisakusho KK
Publication of EP0013169A1 publication Critical patent/EP0013169A1/fr
Application granted granted Critical
Publication of EP0013169B1 publication Critical patent/EP0013169B1/fr
Expired legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H4/00—Open-end spinning machines or arrangements for imparting twist to independently moving fibres separated from slivers; Piecing arrangements therefor; Covering endless core threads with fibres by open-end spinning techniques
    • D01H4/30—Arrangements for separating slivers into fibres; Orienting or straightening fibres, e.g. using guide-rolls
    • D01H4/32—Arrangements for separating slivers into fibres; Orienting or straightening fibres, e.g. using guide-rolls using opening rollers

Definitions

  • the present invention relates to a combing roller utilized for an open-end spinning machine and, more particularly, relates to an improved combing roller wherein the roller is provided with a metallic wire mounted on the peripheral surface thereof without a free space where fibers can not receive effective combing action.
  • a bundle of fibers supplied from an upstream supplying mechanism is opened by means of a combing roller, so as to separate the bundle into individual fibers, and the separated fibers are carried into a twisting mechanism so as to form a twisted yarn.
  • a combing roller provided with a metallic wire helically secured on the peripheral surface of the main body of the combing roller is utilized.
  • the above mentioned metallic wire is provided with a cross-section comprising a laterally expanded base portion and a teeth portion projected upward from the base portion.
  • the base portion of the metallic wire is pressed into a helical groove formed on the peripheral portion of the main body of the combing roller by means of a press roller, so that the metallic wire can be rigidly mounted on the main body of the combing roller.
  • the helical groove is formed on the peripheral portion of the main body with a pertinent pitch along the axial direction of the combing roller.
  • the main body is coaxially provided with a flange at each end thereof.
  • cylindrical spaces are formed on the peripheral portion of the main body between the two flanges and the corresponding spiral portions of the metallic wire, which are the starting and terminal portions of the metallic wire.
  • the axial size of those cylindrical spaces has been allowed to be almost the same as the above-mentioned pitch of the helical groove, that is the axial pitch of the metallic wire. It is the understanding of the inventors of the present invention that the reasons for the above-mentioned axial size of those cylindrial space are as follows.
  • the open-end spinning method it is essential to feed well separated individual fibers into a yarn forming mechanism, such as a spinning rotor, and the function of the combing roller is to do this. Therefore, generally speaking, the body of the combing roller and the metallic wire are made with precision, and the mounting of the metallic wire on the main body of the combing roller is carried out with precision precisely, so as to ensure the function of the combing roller.
  • the principal object of the present invention is to provide an improved combing roller which does not give rise to the above mentioned defective function of the conventional combing roller.
  • the inventors of the present invention have devised the following described combing roller to attain the purpose of the present invention. That is in the combing roller utilized for an open-end spinning machine, wherein a metallic wire is mounter on a body of the combing roller, the body of the combing roller comprises a main cylindrical body and a pair of flanges coaxially formed at both ends of the main body, a base portion of the metallic wire is pressed into a right hand or left hand helical groove and the working direction of the metallic wire coincides with the rotational direction of the combing roller a free space formed on the main body at a first position between one of the above--mentined flanges located on a side of the combing roller corresponding to the direction of progress of an imaginary right hand screw imaginarily engaged with the right hand helical groove or an imaginary left hand screw imaginarily engaged with the left hand groove when the imaginary screw is turned in the counterclockwise direction and a tooth point of the end portion of the metallic wire is
  • the axial size of the above-mentioned second free space is not serious, because of the tendency of fibers not to be introduced into this second free space and, therefore, it is essential to satisfy the condition that the second free space can be lager than the first free space.
  • Fig. 4 indicating the conventional combing roller 5, the helical angle of the right hand groove is represented by 6.
  • the conventional process of mounting the metallic wire 8 on the main body 5a of the combing roller 5 by utilizing a pressing disc 10 is hereinafter explained, with reference to Figs. 2 and 4. That is, a starting end of the metallic wire 8 having a cross section as shown in Fig. 4 is firstly pressed into a starting point P 1 1
  • the base portion 8a of the metallic wire 8 is continuously pressed into the helical groove 9 by pressing the shoulder 8b of the metallic wire 8, by means of a pressing disc 10 which is in rotatable contact with the shoulder 8b, toward the working direction W (Fig. 1) of the metallic wire and into the helical groove 9.
  • the pressing roller 10 is displaced toward a direction a 1 , which is parallel to the axial. direction of the body of the combing roller 5, since the pressing roller 10 is displacably mounted on a shaft (not shown) which is parallel to the axial direction of the body of the combing roller 5.
  • the metallic wire 8 is continuously supplied from a supply roll of the metallic wire (not shown). In such a mounting operation, since the pressing disc 10 is always located at a position separated from any portion of the helical groove 9 into which the metallic wire..8 has not been pressed, there is no possiblity of damaging the helical groove 9 before the base portion 8b of the metallic wire is pressed into the groove 9.
  • the distance from the starting end of the helical groove 9, containing the metallic wire 8, to the flange 5b is represented by x
  • the width of the shoulder 8b which is almost equal to the distance from the tip of the teeth 8c to the shoulder side of the metallic wire 8 is represented by y.
  • the axial size L 1 of the first free space is a sum of x and y.
  • the problem we have to solve is how to restrict the axial size of the first free space.
  • the combing roller 5 is provided with a metallic wire 8 mounted on the main body 5a in such a condition that the base portion 8a of the metallic wire 5 is pressed into the right hand helical groove 9 by pressing the shoulder portion 8b by means of the pressing disc 10.
  • the cross section of the metallic wire 8 is different from that of the conventional combing roller 5 illustrated in Figs. 2 and 4. That is, in this embodiment, the shoulder portion 8b of the metallic wire 8 is projected toward the side opposite to that of the metallic wire 8 illustrated in Fig. 4.
  • the metallic wire 8 has a laterally expanded base portion 8a which is projected toward the direction of progress of an imaginary right hand screw turned in the clockwise direction when in imaginary engagement with the right hand helical groove 9. If such a construction is applied to the combing roller 5, the size L 1 of the first free space can be reduced to x, and the influence of the width y of the shoulder portion 8b of the metallic wire 5 can be completely eliminated. On the other hand the axial size L 2 of the second free space is x + y. However, as discussed in previous paragraphs, even if the size L 1 of the first free space can be remarkably reduced, the basic requirements of preventing any possible damage to the teeth portion 8c of the metallic wire and the helical groove 9 during the mounting operation must be met.
  • the metallic wire 8 illustrated in Figs. 2 and 6 has a unique construction and the mounting thereof is also unique. Because of these two factors, since the axial size L I of the first free space is remarkably reduced, the problem due to insufficient opening action of the conventional combing roller 5 can be effectively eliminated.
  • the other embodiment of the improved combing roller 5 according to the present invention is illustrated in Figs. 3 and 7.
  • the metallic wire 8 having the cross section illustrated in Fig. 7 is mounted on the left hand helical groove 9 in such condition that the mounting operation is started at the terminal position P 2 of the wire 8 of the conventional combing roller of Figs. 3 and 5, and is completed at the starting position p1of the wire 8 of the conventional combing roller 5 illustrated in Figs. 3 and 5.
  • the pressing disc 10 presser on the shoulder portion 8b of the metallic wire 8 in the direction reverse to the working direction of the metallic wire 8.
  • the shoulder side of the metallic wire 8 faces the flange 5b located on the ned of the roller corresponding to the direction of progress of an imaginary right hand screw turned in the clockwise direction when in imaginary screw engagement with the groove 9.
  • the working surface of teeth of the metallic wire coincide with the rotational direction of the combing roller 5 which rotates in the counter-clockwise direction as illustrated in Figs. 1 and 6.
  • the distance L between the tip of the bent teeth (m 1 , m 2 , m 3 , m4 and m 5 ) and the flange 5b is gradually increased as illustrated in Fig. 8.
  • the combing roller 5 rotates in the counter-clockwise direction in this drawing, even if only the above-mentioned terminal tooth m 1 is bent, the group of fibers introduced into this first free space cam receive the opening action of this tooth m 1 , so that the problem regarding neps when utilizing the conventional combing roller can be eliminated.
  • the five teeth, m 1 , m 2 , m 3 , m4 and m 5 are bent toward the flange 5b, the group of fibers introduced into the first free space receive the effective action of those teeth.
  • the teeth m 1 , m 2 , m 3 , m4 and m 5 are bent toward the flange 5b, the axial distance Q between those teeth and the laterally adjacent teeth of the metallic wire 8 formed in the next helical portion of the helical groove 9 is enlarged from the normal pitch R of groove 9.
  • a group of fibers introduced into the space corresponding to the above-mentioned enlarged axial distance Q recieves at least one action of one of the teeth formed on the metallic wire portion adjacent to the alignment of the teeth m 1 , m 2 , m 3 , m4 and m 5 when the combing roller 5 makes one rotation.
  • the combing roller 5 rotates at a very high speed in comparison with the feeding speed of the sliver S, for example, between 5000 and 10000 rpm, and therefore, in the practice, the group of fibers introduced into the above--mentioned space can received sufficient opening action by the teeth formed on the metallic wire portion adjacent to the alignemnt of the teeth m 1 , m 2 , m 3 ' m 4 and m 5 . Consequently, it is clear that the above-mentioned formation of the bent tooth or teeth in the terminal portions of the metallic wire adjacent to the flange 5b is an excellent solution to elimination of the problem concerning generation of slubby portions of yarn with the conventional combing roller.
  • a tool of special design is utilized to bend the tooth portion 8c of the teeth of the terminal portion metallic wire.
  • the operation of bending the tooth portion 8c is carried out after rigidly mounting the metallic wire in the helical groove 9.
  • the axial distance L 2 is not of serious concern regarding the possible creatin of slabby yarn.
  • the teeth of this terminal portion may be bent toward the flange 5c, even though if there is only a very small probability of introducing fibers into thes second free space.
  • the teeth 8c of the terminal portion of the metallic wire 5 adjacent to the flange 5b are bent toward the flange 5b so that the axial size of the first free space L 1 can be effectively reduced, as can be clearly understood from the drawing of Fig. 10.
  • the terminal portion of the metallic wire 8 is rigidly inserted into a portion 9a (Fig. 9) of the helical groove 9, wherein the groove of this portion 9a ia formed with a certain angle corresponding to the bending angle in Fig. 8 with respect to a plane perpendicular to the rotational axis of the combing roller 5, even if the tooth portion 8c of themetallic wire is not bent, a result similar to the embodiment illustrated in Figs. 8, 9 and 10 can be created.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Preliminary Treatment Of Fibers (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
EP19790303027 1978-12-26 1979-12-21 Perfectionnement apporté au cylindre peigneur d'un métier de filature à bout libre Expired EP0013169B1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP17965278 1978-12-26
JP179652/78 1978-12-26
JP160588/79U 1979-11-20
JP1979160588U JPS5718447Y2 (fr) 1979-11-20 1979-11-20

Publications (2)

Publication Number Publication Date
EP0013169A1 true EP0013169A1 (fr) 1980-07-09
EP0013169B1 EP0013169B1 (fr) 1984-07-04

Family

ID=26487049

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19790303027 Expired EP0013169B1 (fr) 1978-12-26 1979-12-21 Perfectionnement apporté au cylindre peigneur d'un métier de filature à bout libre

Country Status (2)

Country Link
EP (1) EP0013169B1 (fr)
DE (1) DE2967093D1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2172908A (en) * 1985-02-11 1986-10-01 Truetzschler & Co Opener roller for opening fibre bales, such as cotton wool bales, man-made fibre bales and the like
EP0311713A1 (fr) * 1987-10-12 1989-04-19 Hollingsworth Gmbh Cylindre peigneur pour des machines de filature à bout libre
EP0337014A1 (fr) * 1988-04-13 1989-10-18 Peter Wolters Ag Rouleau pour travailler les masses de fibres
WO2004079063A1 (fr) * 2003-03-07 2004-09-16 Saurer Gmbh & Co. Kg Cylindre d'ouverture pour metiers a filer a turbine

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2221591A1 (de) * 1971-05-03 1972-11-16 Platt Internat Ltd Eine OEffnungswalze enthaltender OEffner fuer Textilmaschinen
JPS4819727U (fr) * 1971-07-15 1973-03-06
DE2433769A1 (de) * 1974-07-13 1976-01-22 Seelemann Baumann Gmbh Vorreisserwalze fuer open-end spinnmaschinen
US3968542A (en) * 1975-03-21 1976-07-13 Hollingsworth John D Beater roll

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2221591A1 (de) * 1971-05-03 1972-11-16 Platt Internat Ltd Eine OEffnungswalze enthaltender OEffner fuer Textilmaschinen
JPS4819727U (fr) * 1971-07-15 1973-03-06
DE2433769A1 (de) * 1974-07-13 1976-01-22 Seelemann Baumann Gmbh Vorreisserwalze fuer open-end spinnmaschinen
US3968542A (en) * 1975-03-21 1976-07-13 Hollingsworth John D Beater roll

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2172908A (en) * 1985-02-11 1986-10-01 Truetzschler & Co Opener roller for opening fibre bales, such as cotton wool bales, man-made fibre bales and the like
US4662031A (en) * 1985-02-11 1987-05-05 Trutzschler Gmbh & Co. Kg Opening roller for removing material from fiber bales
GB2172908B (en) * 1985-02-11 1989-06-14 Truetzschler & Co Opener roller for opening fibre bales, such as cotton wool bales, man-made fibre bales and the like
EP0311713A1 (fr) * 1987-10-12 1989-04-19 Hollingsworth Gmbh Cylindre peigneur pour des machines de filature à bout libre
EP0337014A1 (fr) * 1988-04-13 1989-10-18 Peter Wolters Ag Rouleau pour travailler les masses de fibres
US5008979A (en) * 1988-04-13 1991-04-23 Peter Wolters Ag Textile-fiber treating grooved roller and a wire with teeth having a foot portion indented for force-fitting the wire into the groove and method of making same
WO2004079063A1 (fr) * 2003-03-07 2004-09-16 Saurer Gmbh & Co. Kg Cylindre d'ouverture pour metiers a filer a turbine

Also Published As

Publication number Publication date
EP0013169B1 (fr) 1984-07-04
DE2967093D1 (en) 1984-08-09

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