KR101729949B1 - Plastic heald and method for manufacturing plastic heald - Google Patents

Plastic heald and method for manufacturing plastic heald Download PDF

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Publication number
KR101729949B1
KR101729949B1 KR1020150148456A KR20150148456A KR101729949B1 KR 101729949 B1 KR101729949 B1 KR 101729949B1 KR 1020150148456 A KR1020150148456 A KR 1020150148456A KR 20150148456 A KR20150148456 A KR 20150148456A KR 101729949 B1 KR101729949 B1 KR 101729949B1
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KR
South Korea
Prior art keywords
resin
heald
resin sheet
reinforcing
punch
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KR1020150148456A
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Korean (ko)
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KR20160049486A (en
Inventor
히로아키 다카시마
와타루 오무로
사츠키 사이토
히사시 무라마츠
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가부시키가이샤 도요다 지도숏키
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Publication of KR20160049486A publication Critical patent/KR20160049486A/en
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    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03C—SHEDDING MECHANISMS; PATTERN CARDS OR CHAINS; PUNCHING OF CARDS; DESIGNING PATTERNS
    • D03C9/00—Healds; Heald frames
    • D03C9/02—Healds
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03C—SHEDDING MECHANISMS; PATTERN CARDS OR CHAINS; PUNCHING OF CARDS; DESIGNING PATTERNS
    • D03C9/00—Healds; Heald frames
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03C—SHEDDING MECHANISMS; PATTERN CARDS OR CHAINS; PUNCHING OF CARDS; DESIGNING PATTERNS
    • D03C9/00—Healds; Heald frames
    • D03C9/02—Healds
    • D03C9/026—Material used

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Looms (AREA)

Abstract

The resin heatshaft mounted on the handle frame of the loom includes a pair of end portions having an engaging space for engaging the handle frame and a thread portion located between the end portions and passing through a warp yarn And includes a central portion having an eye hole. The handle includes a pair of first reinforcing members for reinforcing each of the ends. Each of the ends has a first surface, a second surface, and a thickness between the first surface and the second surface. A portion of each of the first reinforcing members passes through a corresponding end portion from the first surface in the thickness direction and is bent at the second surface to fix the first reinforcing member to the end portion. There is provided a method of manufacturing a resin helix by pressing a punch in the shape of a hand through a resin sheet to a helical die.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a method of manufacturing a resin heald and a resin heald,

The present invention relates to a plastic heald mounted on a heald frame of a loom and a method of manufacturing the resin heald.

The heddle frame moves up and down for shedding of the warp yarn during operation of the loom so that the heddle mounted on the heddle frame and supporting the warp is subjected to load and vibration, The hand is susceptible to wear and tear. As the heald, a metal heald and a resin heald are available. Resin healds are superior to metal healds in terms of weight reduction, but they are inferior in strength, stiffness, and wear resistance. Particularly, both end portions of the resin heald for use in a riderless-type helmet are formed in a C shape or a J shape having an opening, and each has an engagement space therein, . The resin heald of such a structure tends to lack strength.

There are two types of hand frame: rider-type and riderless. In this specification, the rider-type heald frame represents a heald frame having a crossbar at the top and bottom of the heald frame, and the heald for the rider-type heald frame is arranged so that the heald frame is placed in the O- And is supported by passing a cross of the heddle frame. The riderless type frame does not have a cross. A helmet for a riderless type helmet frame is supported by a helmet frame by hooking the helmet at both ends of the helmet having a C or J shaped space with an opening to a portion of the helmet frame.

Patent Document 1 discloses a resin helix for use in a riderless type heald frame. The heald of Patent Document 1 includes a plurality of different portions arranged in the longitudinal direction of the heald. These portions are formed of different resin materials or different composite materials that meet the properties required for each part of the head. A concave portion is provided at a connecting position between the portions adjacent to each other in the longitudinal direction of the head. In the concave portion, a metal plate is inserted as a reinforcing portion for reinforcing the connection of the parts.

Japanese Laid-Open Patent Publication No. 2012-207356

Patent Document 1 discloses only that the metal plate is inserted into the concave portion of the heel, and there is no description on how to fix the portions. Only the metal plate inserted into the concave portion can be removed from the concave portion, and the heald is not reinforced. A method of bonding the metal plate to the concave portion with an adhesive can be considered. However, the weft frame of the weaving machine, which is moved up and down for the opening operation, is subjected to constant vibration and impact, and the use of the adhesive can not fix the parts of the heel strongly. In addition, there are no good adhesives on the market that are suitable for fixing parts of different materials such as resins and metals.

Insufficient adhesion causes the metal plate to separate from the heald and fall off during the weaving operation of the loom. In such a case, the heel is damaged due to the loss of the reinforcing function. As a result, the loom becomes inoperable.

It is an object of the present invention to provide a resin heald reinforced for use for a long time.

According to one aspect of the present invention there is provided a weft frame comprising a pair of ends having a coupling space for engaging a handle frame and a central portion having an eye hole positioned between the ends and passing an inclination, Is provided. The handle includes a pair of first reinforcing members for reinforcing the respective ends. Each end has a first surface, a second surface, and a thickness between the first surface and the second surface. A part of each first reinforcing member passes through the corresponding end portion from the first surface in the thickness direction and is bent at the second surface to fix the first reinforcing member to the end portion.

There is also provided a method of manufacturing a resin helix by pressing a punch of a helix shape through a resin sheet to a helical die. The handle includes a pair of ends having engagement spaces. The method includes the steps of providing inserting spaces in a punch, inserting a pair of first reinforcing members into respective inserting spaces of the punch at positions corresponding to the respective engaging spaces, inserting a pair of first reinforcing members A step of disposing a guide groove of the die at a position corresponding to the punch with the resin sheet interposed therebetween; a step of moving the punch toward the die to form a guide groove A step of passing a part of each first reinforcing member through the resin sheet by pressing the first reinforcing member against the first reinforcing member, acute angle so as to fix each first reinforcing member to the resin sheet and to fix the first reinforcing members to the resin sheet and to separate the resin from the resin sheet by punching And punching.

Other aspects and advantages of the present invention will become apparent from the following description, taken in conjunction with the accompanying drawings, which illustrate, by way of example, the principles of the invention.

BRIEF DESCRIPTION OF THE DRAWINGS The invention, together with objects and advantages thereof, may best be understood by reference to the following description of the preferred embodiments together with the accompanying drawings.
1 is a front view of a resin tool according to an embodiment of the present invention.
Fig. 2 is an enlarged front view showing one end of the resin tool of Fig. 1;
3 is an enlarged rear view of one end of the resin tool of Fig.
Fig. 4 is a side view of the resin heddle of Fig. 1; Fig.
Figure 5a is a perspective view of the metal piece of the handle of Figure 1;
5B is a perspective view of the metal piece of FIG.
Fig. 6 is a plan view showing a mechanism for manufacturing the resin helix of Fig. 1;
7 is a view along the line AA in Fig.

An embodiment according to the present invention will be described with reference to Figs. 1 to 7. Fig. 1, a resin heald 1 is mounted on a riderless type heald frame (not shown) of a loom. The resin heald 1 has a central hole 2 having a thread hole 3 for passing an inclined thread (not shown). The resin heald 1 is provided at one end portion 4 with an engaging space 5 used for mounting the resin heald 1 by bending the upper frame (not shown) of the riderless heald frame, . One end (4) of the resin tool (1) is formed in a C shape having an opening (6) and a fitting space (5). The other end portion 7 of the resin heald 1 is also formed in a C shape having an opening portion 8 and a fitting space 9.

As a pair of first reinforcing members of the present invention, the metal pieces 10 and 11 are fixed to both ends 4 and 7 of the resin heald 1, respectively. The metal pieces 10 and 11 have substantially the same shape. Therefore, the metal piece 10 will be described in detail with reference to Figs. 2 to 5. Fig. The metal piece 10 is made of a metal bar bent in a U-shape when viewed in a plan view. The metal piece 10 has a rectangular cross section (see Fig. 3), but the metal piece may have a polygonal shape, a circular shape, or an elliptical shape.

The metal piece 10 includes two leg portions 12 and a curved head portion 13 formed between the leg portions 12. The metal piece 10 further includes a retainer portion 14 extending from each leg portion 12 (see Fig. 5A). The length of the retainer portion 14 is larger than the thickness T (see Fig. 4) of the end portion 4 of the resin heald 1. The distance L1 between the legs 12 of the metal piece 10 is larger than the width L2 of the engaging space 5. [ The leg portion 12 and the head portion 13 surround a part of the engaging space 5 when the metal piece 10 is fixed to the end portion 4 of the resin heald 1.

4, the leg 12 and the head 13 are located on one side 15 of the end 4 of the resin heald 1 and the retainer 14 Are arranged in such a manner that they penetrate the resin heald 1 from the one surface 15 in the thickness direction thereof. 4 and 5B, the retainer portion 14 passing through the resin heald 1 is bent at the other opposing face 16 and is brought into pressure contact with the opposing face 16 as shown in Fig. The leg portion 12 and the head portion 13 of the metal piece 10 are brought into pressure contact with the one surface 15 while the retainer portion 14 is in pressure contact with the opposing surface 16, Is fixed to the end portion (4) of the heald (1). The metal piece 11 for the other end portion 7 of the resin tool holder 1 has substantially the same shape and structure as the metal piece 10 described above and has the same shape as the metal piece 10, As shown in Fig.

1, U-shaped metal pieces 17 and 18 are fixed to the central portion 2 of the resin heald 1 as a pair of second reinforcing members of the present invention. The metal pieces 17 and 18 have substantially the same shape and structure as those of the metal piece 10 but the metal pieces 17 and 18 are made of the same material as the metal piece 10 in accordance with the size of the central portion 2 and the thread hole 3 of the resin- (10). ≪ / RTI > The metal pieces 17 and 18 are disposed on one surface 15 of the resin heald 1 such that the head portions 19 and 20 of the metal pieces 17 and 18 are spaced apart from each other. The retainers (not shown) of the metal pieces 17 and 18 penetrate the resin heald 1 in the direction of the thickness T from the one surface 15 and are bent at the opposing surface 16, ). Therefore, the metal pieces 17, 18 fixed to the resin heald 1 are arranged so as to surround the thread hole 3. The one surface 15 and the opposite surface 16 are the first surface and the second surface in the present invention.

The resin heald 1 having the metal pieces 10, 11, 17, 18 can be manufactured by the apparatuses shown in Figs. 6 and 7. On the upper side of the resin sheet 21 moving in the direction of the arrow in Fig. 7, a punch 22 in the form of a hand is arranged. Below the punch 22, a helical die 23 is disposed at a position corresponding to the punch 22. By moving the punch 22 to the die 23, the helical workpiece for the resin heald 1 is removed or punched out of the resin sheet 21.

The pedestals 24 and 25 are provided on the side of the punch 22 at positions corresponding to the engaging spaces 5 and 9 of the end portions 4 and 7 of the resin heald 1 and the thread holes 3 of the central portion 2. [ And a center pedestal 26, 27, respectively. The metal pieces 10 and 11 face the resin sheet 21 with the retainer portion 14 facing the resin sheet 21 as shown in Fig. Are placed on the pedestals (24, 25). The metal pieces 17 and 18 face the resin sheet 21 in the retainer portion like the metal pieces 10 and 11. The metal pieces 17 and 18 are pressed against the resin sheet 21 by the spring portions 30 and 31 to press the punch 22 against the central portion pedestals 26 and 27 .

7, the punch 22 is provided therein with an insertion space 32 for accommodating the metal piece 10 at the foremost stage and an insertion space 32 for preventing the contact between the punch 22 and the second metal piece 10 Has a recess space (33). The punch 22 is provided with a stop surface 34 serving as a top which regulates the movement of the metal piece 10 and a stopper 34 which is connected to the stop surface 34 and simultaneously presses down one piece of metal 10 And further has a pressing surface 35 facing the first metal piece 10. 7, the metal pieces 10 on the pedestal 24 are moved to the left by the spring 28 and then the next metal piece 10 is moved to the best end position in the insertion space 32, Is brought into contact with the stop surface 34 immediately below the pressure surface 35. [

The die 23 has a guide groove 36 disposed directly below the resin sheet 21 at the inner upper end thereof, and faces the punch 22. The guide groove 36 has a width enough to accommodate the two retainer portions 14 of the metal piece 10 therein. 5B, the retainer portion 14 accommodated in the guide groove 36 is bent toward the head portion 13 of the metal piece 10, and the retainer portion 14 And the distance between the leg portions 12 is made to be smaller toward the head portion 13. As shown in Fig. 7, the tip portion of the bent retainer portion 14 is pressed or caulked to the lower surface of the resin sheet 21.

When the punch 22 is lowered in the direction of the arrow in Fig. 7 in the manufacturing apparatuses shown in Figs. 6 and 7, the pressing surface 35 is brought into contact with the upper surface of the best metal piece 10, And pressed against the resin sheet (21). The two retainer portions 14 of the metal piece 10 penetrate the resin sheet 21 and reach the bottom of the guide groove 36 of the die 23.

When the punch 22 is further lowered, the metal piece 10 is moved downward while the retainer portion 14 is bent. When the leg portion 12 and the head portion 13 of the metal piece 10 are pressed against the resin sheet 21, the retainer portion 14 is also pressed against the resin sheet 21, Is fixed to the resin sheet (21). The metal piece 10 is fixed to the resin sheet 21 by the lowering of the punch 22 and the resin heald 1 having the shape shown by imaginary line in Fig. 6 is punched out from the resin sheet 21. [ As a result, the resin heald 1 having the metal piece 10 is completed.

The other metal pieces 11, 17 and 18 are also attached to the resin heald 1 by using the same method described with reference to the metal piece 10 Can be fixed. The metal pieces 10 and 11 are fixed to the respective end portions 4 and 7 of the resin heald 1 and the metal pieces 17 and 18 are fixed to the central portion 2 of the resin heald 1 . However, as long as the metal pieces 10 and 11 are fixed to the respective end portions 4 and 7 of the resin heald 1, the resin heald 1 can be sufficiently reinforced.

In this embodiment, since the both ends 4, 7 and the central portion 2 of the resin heald 1 are reinforced, the resin heald 1 is provided on the resin heald 1 during the weaving operation of the loom. Has strength, rigidity and sufficient abrasion resistance that can resist a working load. The metal pieces 10, 11, 17 and 18 are firmly fixed to the resin heald 1 so that they are not likely to fall off due to the vibration of the handle frame, The resin heald 1 can maintain proper reinforcement for a long period of time.

The thread hole 3 of the resin heald 1 reinforced by the metal pieces 17 and 18 disposed around the thread hole 3 can withstand the contact friction with the warp. The metal pieces 10, 11, 17 and 18 fixed to the resin heald 1 so as to surround the bonding spaces 5 and 9 and the perforations of the thread hole 3 improve the reinforcement of the resin heald 1 . In the resin heald 1 used in the riderless type heald frame, both end portions 4 and 7 having the engaging spaces 5 and 9 are formed in a C shape so that the torsional strength of the resin heald 1 is reduced . However, the resin heald 1 appropriately reinforced by the metal pieces 10, 11 has sufficient strength, rigidity and wear resistance.

Although the present invention has been described in connection with the embodiment, it is not limited to this embodiment. It will be apparent to those of ordinary skill in the art that the present invention may be practiced in a variety of ways, as embodied and broadly described herein, within the scope of the present invention.

(1) The method of fixing the metal pieces 10, 11, 17 and 18 to the resin heald 1 is not limited to the method described with reference to Figs. 6 and 7 using a punch, May be performed in a separate step after the resin helix is created by a punch pressing operation.

(2) The metal pieces 10, 11, 17, and 18 may be formed by adding one or more retainers extending from the head 13, in addition to the retainer 14 extending from the leg 12.

(3) The head 13 of the metal pieces 10, 11, 17 and 18 is curved in conformity with the curved shape of the end portion of the resin tool, but the head portion of the metal piece may be formed in a straight line.

(4) The metal pieces 10, 11, 17, and 18 may be formed in an elliptical shape as viewed from the plane (FIG. 6). In this case, it is preferable that the size of the ellipse is set so as to surround the engaging spaces 5, 9 or the periphery of the thread hole 3.

(5) The metal pieces 10, 11, 17, and 18 may be formed in a straight rod shape.

(6) According to the present invention, the metal pieces 10, 11, 17, 18 may be fixed to the resin heald 1 used in the rider type hedd.

(7) The shape of the end portions 4 and 7 of the resin heald 1 is not limited to the C shape but may be an O shape or a J shape.

(8) The reinforcing member is not limited to the metal pieces 10, 11, 17 and 18, but may be made of a fiber reinforced resin having a higher strength than the resin forming the resin heald 1.

Claims (6)

A resin heald mounted on a heald frame of a loom,
A pair of ends having a coupling space for engaging the handle frame; And
And a central portion located between the ends and having an eye hole (3) for passing a warp yarn,
Wherein the handle comprises a pair of first reinforcing members for reinforcing each of the ends, each end having a first side, a second side, and a thickness between the first side and the second side, Wherein a portion of the first reinforcing member passes through a corresponding end portion from the first surface in the thickness direction and is bent at the second surface so that the first reinforcing member is fixed to the end portion. The method according to claim 1,
Characterized in that the handle includes a pair of second reinforcing members different from the first reinforcing member, and the second reinforcing member is fixed to the center portion. 3. The method of claim 2,
And the second reinforcing member is formed in a U shape so as to surround the thread hole in cooperation with each other. The method according to claim 1,
Wherein the first reinforcing member is formed in a U shape around each of the engagement spaces. The method according to claim 1,
Wherein the helmet frame is a riderless-type helmet frame, and each of the ends is formed in a C or J shape. CLAIMS What is claimed is: 1. A method of manufacturing a resin heald by pressurizing a punch in the shape of a hand through a sheet of resin and into a helix-shaped die, the heald comprising a pair of ends having an engaging space ,
Providing insertion spaces in the punch;
Inserting a pair of first reinforcing members into respective insertion spaces of the punches at positions corresponding to the respective engaging spaces;
Providing guide grooves for respectively receiving portions of the corresponding first reinforcing members on the die;
Disposing the guide groove of the die at a position corresponding to each insertion space of the punch with the resin sheet therebetween;
Moving the punch toward the die and pressing the first reinforcing member against the resin sheet to pass a portion of each of the first reinforcing members through the resin sheet;
Fixing each of the first reinforcement members to the resin sheet by bending a part of each of the first reinforcement members penetrating the resin sheet by the guide groove of the die at an acute angle; And
And fixing the first reinforcing members to the resin sheet, and punching the heald from the resin sheet by the punch.
KR1020150148456A 2014-10-27 2015-10-26 Plastic heald and method for manufacturing plastic heald KR101729949B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JPJP-P-2014-218059 2014-10-27
JP2014218059A JP6350210B2 (en) 2014-10-27 2014-10-27 Resin heald and method for manufacturing resin heald

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Publication Number Publication Date
KR20160049486A KR20160049486A (en) 2016-05-09
KR101729949B1 true KR101729949B1 (en) 2017-04-25

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KR1020150148456A KR101729949B1 (en) 2014-10-27 2015-10-26 Plastic heald and method for manufacturing plastic heald

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JP (1) JP6350210B2 (en)
KR (1) KR101729949B1 (en)
CN (1) CN105544042B (en)
DE (1) DE102015118212B4 (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010077588A (en) 2008-09-23 2010-04-08 Groz-Beckert Kg Jacquard heddle

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4355665A (en) * 1980-05-26 1982-10-26 Bracker Ag Heddle
JPH0414582Y2 (en) * 1986-08-11 1992-04-02
JPH041874Y2 (en) * 1986-10-20 1992-01-22
DE10330304B4 (en) * 2003-06-17 2005-10-27 Groz-Beckert Kg Improved heald
BE1017334A3 (en) * 2006-10-05 2008-06-03 Picanol Nv WEAVING FRAME WITH REINFORCEMENT PROFILE FOR A WEAVING MACHINE.
EP2019157B1 (en) * 2007-07-26 2010-06-30 Groz-Beckert KG Narrow cropped heald
EP2505702B2 (en) * 2011-03-28 2023-05-17 Groz-Beckert KG Heald which comprises sections with multiple film layers
EP2505701B1 (en) * 2011-03-28 2014-12-31 Groz-Beckert KG Multiple component plastic heddle and method for its manufacture
CN203752509U (en) * 2014-01-17 2014-08-06 苏州市职业大学 Hot punching and twisting device
CN203888200U (en) * 2014-01-17 2014-10-22 苏州市职业大学 Automatic thermal punching and twisting machine

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010077588A (en) 2008-09-23 2010-04-08 Groz-Beckert Kg Jacquard heddle

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KR20160049486A (en) 2016-05-09
DE102015118212B4 (en) 2018-04-26
CN105544042B (en) 2017-08-25
DE102015118212A1 (en) 2016-04-28
CN105544042A (en) 2016-05-04
JP6350210B2 (en) 2018-07-04
JP2016084558A (en) 2016-05-19

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