CN113388943B - Lower opening mechanism and drafting method of fixed-twisting-group-free two-warp leno fabric - Google Patents
Lower opening mechanism and drafting method of fixed-twisting-group-free two-warp leno fabric Download PDFInfo
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- CN113388943B CN113388943B CN202110746800.8A CN202110746800A CN113388943B CN 113388943 B CN113388943 B CN 113388943B CN 202110746800 A CN202110746800 A CN 202110746800A CN 113388943 B CN113388943 B CN 113388943B
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- D—TEXTILES; PAPER
- D03—WEAVING
- D03C—SHEDDING MECHANISMS; PATTERN CARDS OR CHAINS; PUNCHING OF CARDS; DESIGNING PATTERNS
- D03C7/00—Leno or similar shedding mechanisms
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- D—TEXTILES; PAPER
- D03—WEAVING
- D03J—AUXILIARY WEAVING APPARATUS; WEAVERS' TOOLS; SHUTTLES
- D03J1/00—Auxiliary apparatus combined with or associated with looms
- D03J1/14—Apparatus for threading warp stop-motion droppers, healds, or reeds
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Abstract
The invention provides a lower opening mechanism of a two-warp leno fabric without a fixed skein group and a drafting method. Lower opening mechanism is from the front of machineWhen viewed from the back of the machine, the heald frames are a half heald A, a half heald B, a back heald C and a ground heald D in sequence, wherein the half heald A and the half heald B are lower opening mechanisms, and the back heald C and the ground heald D are upper opening mechanisms; in the drafting method, the warp threads are sequentially in a group of skein threads S X A group of ground warps G X Arranged at intervals and twisted into warps S X The ground heald D is penetrated in the air, then the ground heald D penetrates into a heald eye of the back heald C, then the ground heald B penetrates into a half heald ring of the half heald B, and finally the ground heald D penetrates into a half heald ring of the half heald A and is pulled to the front of the machine; ground warp G X Penetrating into a heddle eye of a ground heddle D, then penetrating a rear heddle C in an empty manner, and then penetrating from the right side of a half heddle ring adjacent to the right half heddle ring penetrated by a skein B in an empty manner; finally, drawing the half-heddle loops passing through the left side of the half-heddle loops penetrated in the half-heddle A from the skein to the front of the machine; by adopting the shedding mechanism and the drafting method, a two-warp leno fabric without a fixed group can be woven.
Description
Technical Field
The invention relates to the field of fabric weaving, in particular to a lower opening mechanism and a drafting method of a fixed-twisting-group-free two-warp leno fabric.
Background
All skein fabrics comprise two warp systems of ground warp and doup warp, and a common fixed doup two-warp skein fabric is known from the market as shown in fig. 1, and three heald frames including one doup frame and two flat heald frames are required for weaving the fabric. During weaving, both the ground warp and the skein are sketched in one fixed skein group, and the warps of the skein group are not interwoven, so that the two-warp skein fabric is easy to slip in the transverse direction, and the fabric is deformed and cannot be used.
The loom without the fixed skein group two-warp leno fabric needs four heald frames including two skein frames and two flat healds. The two leno heddles make the leno warp in the two-warp leno fabric without fixed leno group not limited to the twisting in one leno group, i.e. the leno warp does not twist with a fixed ground warp separately, but can twist with the ground warp adjacent to the left and the right, and the fabric structure is shown in fig. 2.
Disclosure of Invention
The invention provides a lower opening mechanism of a two-warp leno fabric without a fixed twisting group and a drafting method aiming at the defects of the prior art.
One aspect of the invention provides a lower opening mechanism for a two-warp leno fabric without a fixed set of skeins.
The lower opening mechanism comprises two wire half-heddles, namely a half-heddle A and a half-heddle B, and two flat heddles, namely a back heddle C and a ground heddle D, in the machine-to-machine rear direction; the half heald A and the half heald B are of lower opening structures, and the back heald C and the ground heald D are of upper opening mechanisms.
The invention provides a drafting method for a lower opening mechanism of a fixed-twisting-group-free two-warp leno fabric, which comprises the following steps:
the warp threads are led out from the rear warp beam of the machine and sequentially pass through the ground heald D, the rear heald C, the half heald B and the half heald A in sequence;
wherein the skein S X The ground heald D is penetrated in the air, then the ground heald D penetrates into a heald eye of the back heald C, then the ground heald D penetrates into a half heald ring of the half heald B, and finally the ground heald D penetrates into a half heald ring of the half heald A and is drawn to the front of the machine;
wherein the ground warp G X Penetrating into a heddle eye of a ground heddle D, then penetrating a rear heddle C in an empty manner, and then penetrating from the right side of a half heddle ring adjacent to the right half heddle ring penetrated by a skein B in an empty manner; finally, drawing the half-heddle loops passing through the left side of the half-heddle loops penetrated in the half-heddle A from the skein to the front of the machine;
the sequence of the warps and the ground warps is a group of warps and a group of ground warps which are arranged at intervals, the warps and the ground warps can be arranged in various proportions according to the design of the fabric, wherein the group of the warps and the group of the ground warps form a twisting group.
Compared with the prior art, the invention has the following beneficial effects: the invention provides a half-heald lower shedding mechanism mechanical device for weaving a fixed-twisting-group-free two-warp leno fabric; meanwhile, a drafting mode for weaving a fixed-hank-group-free two-warp leno fabric is provided; in addition, three specific shed forms which are different from a fixed-twisting-group two-warp leno fabric loom and formed by the mechanism lifting way and ten basic tissue structures which can be generated by the loom are summarized, and reference values are provided for diversification of the fixed-twisting-group-free two-warp leno fabric; in addition, the invention obtains the mesh fabric similar to knitted fabric, which has stable fabric structure, makes the yarns not easy to move and deform and has excellent physical properties.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principle of the invention. In the drawings:
FIG. 1 is a fabric construction drawing of a fixed-lay two-warp leno fabric;
FIG. 2 is a fabric construction view of a two-warp leno fabric without a set of fixed douches;
FIG. 3 is a view of the loom configuration of the lower shedding mechanism of a two-warp leno fabric without a fixed set of douches;
figure 4 is a schematic view of a flat heddle frame without a lower shedding mechanism of a fixed-skein two-warp leno weave;
FIG. 5 is a schematic view of a half-heddle shaft of the lower shedding mechanism of a two-warp leno fabric without a fixed set of douches;
FIG. 6 is a schematic front view of an upper machine assembly of a lower shedding mechanism for a two-warp leno fabric without a fixed set of sketches;
FIG. 7 is a schematic drawing of the drafting of the lower shedding mechanism of a two-warp leno fabric without a fixed set of douches;
FIG. 8 (a) is a schematic view of an opening formed by sinking a half heald A of a lower opening mechanism of a two-warp leno fabric without a fixed skein group, lifting the skein warp in the skein group from the left side of the ground warp to the right side of the ground warp through the lower part of the ground warp, and weaving in weft;
FIG. 8 (B) is a schematic view of the half-heddle B sinking of the lower shedding mechanism of a two-warp leno fabric without a fixed skein group, wherein the skein warp in the skein group is lifted from the right side of the ground warp, passes over the ground warp and to the left side of the ground warp, and weft yarns are woven in to form an opening;
FIG. 8 (C) is a schematic drawing of the shedding by the back heddle C lift, the warp lift, the weft thread weave in, without the lower shedding mechanism of the fixed-set two-warp leno fabric;
FIG. 8 (D) is a schematic view of the opening formed by lifting ground heald D, lifting ground warp, and weft being woven in without the lower shedding mechanism of the fixed-set two-warp leno fabric;
FIG. 9 (a) is a schematic view showing the horizontal arrangement of warp yarns before weaving in the loom of the present invention;
FIG. 9 (B) shows the half heald B of the present invention sinking with the warp yarns in the warp group being raised from the right side of the ground warp, over the ground warp, to the left side of the ground warp, the first weft being woven in, G X-1 And S X A schematic view of a shed forming twist;
FIG. 9 (c) shows the condition of the fabric after the completion of the first weft knitting according to the invention, G X-1 And S X The warp threads are arranged in a cross horizontal mode;
FIG. 9 (d) shows the half heald B sinking, the back heald C lifting and G lifting after the first weft knitting is completed according to the present invention X-1 And S X Schematic representation of open shed formation, second weft weaving in, all warp lifts;
FIG. 9 (e) shows the state of the fabric after completion of the second weft knitting, S, of the present invention X And G X The schematic diagram of the arrangement sequence of warp threads before weaving;
FIG. 9 (f) shows the lifting of the back heddle C, the lifting of the ground heddle D and the lifting of the ground heddle G after the second weft weaving is completed according to the invention X-1 And S X Schematic representation of normal shed formation, third weft weaving in, all ground warp lifting;
FIG. 9 (g) shows the state of the fabric after the completion of the third weft knitting of the present invention, S X And G X The schematic diagram of the arrangement sequence of warp threads before weaving;
FIG. 10 (a) is a schematic view showing the horizontal arrangement of warp yarns before weaving in the loom of the present invention;
FIG. 10 (B) is the bottom half heald B with the bottom of the skein warpFrom the right side of the ground warp, over the ground warp, up to the left side of the ground warp, first weft insertion, G X-1 And S X A schematic view of a shed forming twist;
FIG. 10 (c) shows the state of the fabric after completion of the first weft knitting of the present invention, G X-1 And S X In a cross arrangement;
FIG. 10 (D) shows the half heald B sinking and the ground heald D lifting and G raising after the first weft knitting operation of the present invention X-1 And S X Schematic representation of normal shed formation, second weft weaving, all ground warp lifting;
FIG. 10 (e) shows a state after completion of second weft knitting in the present invention, G X-1 And S X In a cross arrangement;
FIG. 10 (f) shows the lifting of the ground heddle D, the lifting of the back heddle C and the lifting of the back heddle G after the second weft weaving is completed according to the invention X-1 And S X Schematic representation of open shed formation, third weft weaving in, all warp lifts;
FIG. 10 (g) shows the state of the fabric after completion of the third weft knitting of the present invention, S X And G X The schematic diagram of the arrangement sequence of warp threads before weaving;
FIG. 11 (a) is a schematic view showing the horizontal arrangement of warp yarns before weaving in the loom of the present invention;
FIG. 11 (b) shows the half heald A of the present invention sinking, the warp threads in the skein group are lifted from the left side of the ground thread, over the ground thread, to the right side of the ground thread, the first weft is woven in, S X And G X A schematic view of a shed forming twist;
FIG. 11 (c) shows the state of the fabric after completion of the first weft knitting of the present invention, S X And G X In a cross arrangement;
FIG. 11 (d) shows the half heald A sinking and the back heald C lifting after the first weft knitting is completed, S X And G X Schematic representation of open shed formation, second weft weaving in, all warp lifts;
FIG. 11 (e) shows the state of the fabric after completion of the second weft knitting, S, of the present invention X And G X The schematic diagram of the arrangement sequence of warp threads before weaving;
FIG. 11 (f) shows the present inventionSinking the half heald A, lifting the ground heald D after finishing weaving the second weft, and S X And G X Schematic representation of normal shed formation, third weft weaving in, all ground warp lifting;
FIG. 11 (g) shows the state of the fabric after the completion of the third weft knitting of the present invention, S X And G X The schematic diagram of the arrangement sequence of warp threads before weaving;
FIG. 12 (a) is a schematic view showing the horizontal arrangement of warp yarns before weaving in the loom of the present invention;
FIG. 12 (b) shows the half heald A of the invention sinking, the skein warp in the skein group passes from the left side of the ground warp, passes over the ground warp, and is lifted to the right side of the ground warp, the first weft is woven in, S X And G X A schematic view of a shed forming twist;
FIG. 12 (c) shows a state after completion of the first weft knitting of the present invention, S X And G X In a cross arrangement;
FIG. 12 (D) shows the half heald A sinking and the ground heald D being raised and S being raised after the first weft knitting is completed according to the present invention X And G X Schematic representation of normal shed formation, second weft weaving, all ground warp lifting;
FIG. 12 (e) shows a state after completion of the second weft knitting of the present invention, S X And G X A schematic diagram of a cross horizontal arrangement;
FIG. 12 (f) shows the lifting of the ground heddle D, the lifting of the back heddle C after the second weft weaving is completed, and S X And G X Schematic representation of open shed formation, third weft weaving in, all warp lifts;
FIG. 12 (g) shows a state after completion of the third weft knitting of the present invention, S X And G X The schematic diagram of the arrangement sequence of warp threads before weaving;
FIG. 13 (a) is a schematic view showing the horizontal arrangement of warp yarns before weaving in the loom of the present invention;
FIG. 13 (b) shows the half heald A of the present invention sinking, the warp threads in the skein group are lifted from the left side of the ground thread, over the ground thread, to the right side of the ground thread, the first weft is woven in, S X And G X A schematic view of a shed forming twist;
FIG. 13 (c) shows the shape of the fabric after completion of the first weft knitting of the present inventionState, S X And G X In a cross arrangement;
FIG. 13 (d) shows the sinking of half heald A, the sinking of half heald B after the first weft knitting, and the sinking of half heald S X And G X-1 Schematic representation of the formation of a shed, second weft weaving, and lifting of all the warp strands;
FIG. 13 (e) shows a state of the fabric after the second weft knitting of the present invention is completed, S X And G X-1 In a cross arrangement;
FIG. 14 (a) is a schematic view showing the horizontal arrangement of warp yarns before weaving in the loom of the present invention;
FIG. 14 (B) shows the half heald B sinking, the warp threads in the skein group rising from the right side of the ground thread, over the ground thread, to the left side of the ground thread, the first weft being woven in, S X And G X-1 A schematic view of a shed forming twist;
FIG. 14 (c) shows the state of the fabric after completion of the first weft knitting of the present invention, S X And G X-1 In a cross arrangement;
FIG. 14 (d) shows the half heald B sinking, after the first weft weaving is completed, the half heald A sinking, the warp threads in the skein warp thread passing through the lower part of the ground thread from the left side of the ground thread to the right side of the ground thread, the second weft weaving, S X And G X-1 A schematic view of a shed forming twist;
FIG. 14 (e) shows the state of the fabric after completion of the second weft knitting of the present invention, S X And G X-1 In a cross arrangement;
FIG. 15 is a fabric structure formed from an AB base structure in combination with a BCD base structure;
FIG. 16 is a fabric structure formed from an AB base structure in combination with a BDC base structure;
FIG. 17 is a fabric structure formed from a BA infrastructure in combination with an ACD infrastructure;
FIG. 18 is a fabric structure formed by a BA infrastructure in combination with an ADC infrastructure;
in fig. 1 to 14, 1-half heald A, 2-half heald B, 3-back heald C, 4-ground heald D, 5-upper beam, 6-heald rod, 7-half heald ring, 8-harness wire and 9-lower beam.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described with reference to the embodiments. The exemplary embodiments and descriptions of the present invention are provided only for explaining the present invention and not for limiting the present invention.
The invention mainly comprises a lower opening mechanism of a two-warp leno fabric without a fixed hank group and a warp drafting mode. In the first part, in a lower opening mechanism of a two-warp leno fabric without a fixed skein group, two half heddles are positioned above warps, and a loom structure designed by the invention is shown in figure 3 and mainly comprises four parts, namely a half heddle A shown as 1 marked in figure 3; half-heddle B, indicated by 2 indicated in figure 3; a back harness C, indicated by 3 in fig. 3; a ground heddle D, indicated by 4 in fig. 3, in which the half heddle is (60-200 cm) × (30-60 cm), as shown in fig. 4, mainly comprising three parts, an upper cross member, indicated by 5 in fig. 5; a heald rod, indicated by 6 in fig. 4; half-heald rings, indicated by 7 indicated in figure 4. Wherein the heald size is (60-200 cm) × (30-60 cm), as shown in FIG. 5. The heddles of which, with the exception of the upper crosspiece and the draw-through shafts common to the half-healds, are shown in fig. 5 at 8; a lower cross member as indicated at 9 in fig. 5. The half heald A and the half heald B are both wire-made half healds, the density is 10-30 threads/cm, the length of the wire heald is 15-20cm, and the wire heald is usually made of wear-resistant fibers such as nylon yarns. The heald frames are arranged in the order of half heald A, half heald B, back heald C and ground heald D when viewed from the front to the back of the loom, and the main assembly structure diagram and the assembly schematic diagram of the loom are shown in FIG. 6. The distance between the half heald A and the front of the machine is 30-45cm, the distance between the half heald B and the half heald A is 6-15cm, the distance between the back heald C and the half heald B is 15-30cm, and the distance between the back heald C and the ground heald D is 1.2-2.5cm.
The second part is a drafting mode of a lower opening mechanism of a double-warp leno fabric without a fixed twisting group, and the drafting mode is shown in figure 7, and is characterized in that warps are led out from a rear warp beam of a machine and sequentially pass through a ground heddle D, a rear heddle C, a half heddle B and a half heddle A; the skein S X The ground heald D is penetrated in the air, then the ground heald D penetrates into a heald eye of the back heald C, then the ground heald B penetrates into a half heald ring of the half heald B, and finally the ground heald D penetrates into a half heald ring of the half heald A and is pulled to the front of the machine; the groundWarp G X Penetrating into a heddle eye of a ground heddle D, then penetrating a rear heddle C in an empty manner, and then penetrating from the right side of a half heddle ring adjacent to the right half heddle ring penetrated by a doup heddle B in an empty manner; finally, drawing the left side of the half-heddle ring penetrated in the half-heddle A from the skein to the front of the machine after passing through the air; the sequence of the skein and the ground warp is a group of skein and a group of ground warp arranged at intervals, and the skein and the ground warp can be arranged in various proportions according to the fabric design, such as 1.
On the basis of a lower shedding mechanism and a drafting mode of a two-warp leno fabric without a fixed skein group, different shedding forms can be formed by lifting different heald frames, and the four specific shedding forms comprise A, B, C and D, as shown in fig. 8. The detailed opening form is as follows:
(1) Opening form A: the semi-heddle A sinks, the skein warp passes through the upper part of the ground warp from the left side of the ground warp and is lifted to the right side of the ground warp, and S X And G X The shed is formed, the weft yarns are woven in, and the open form is shown in figure 8 (a).
(2) B, open form: the half heald B sinks, the skein warp passes from the right side of the ground warp to the left side of the ground warp through the upper part of the ground warp, and G X-1 And S X The shed is formed, the weft yarns are woven in, and the open form is shown in figure 8 (b).
(3) C open form: the back heald C is lifted, the twisted warp is lifted, the weft is woven in, and the opening form is shown in figure 8 (C).
(4) The open form D is a form in which the ground harness D is lifted, the ground warp is lifted, and the weft is woven in, and is shown in fig. 8 (D).
The lower opening mechanism and drafting mode of the two-warp leno fabric without fixed skein group are specified S X 、G X On the premise that two warps are a twisted group, three special shed forms can be generated according to different weaving sequences, including B, (B-) C and (B-) D, wherein the three shed forms relate to G X-1 、S X The position of two warps changes. The method comprises the following specific steps:
(1) B-shed type: when the half heald B sinks, S X And G X-1 A lay shed is formed as shown in figure 9 (b).
(2) In the (B-) C shed, in half-heald B sinking, G X-1 And S X Forming a twisting shed, lifting the back heald C and lifting the back heald S on the premise of finishing the weaving of weft yarns X And G X-1 An open shed is formed as shown in fig. 9 (d).
(3) In the (B-) D shed, S sinks in the half-heddle B X And G X-1 Forming a twisting shed, lifting the ground heald D and lifting the ground heald S on the premise of finishing the weaving of the weft yarn X And G X-1 A normal shed is formed as shown in fig. 10 (d).
On the basis of the lower opening mechanism and the drafting mode of the non-fixed-twisted-group two-warp leno fabric, ten basic tissue structures can be formed according to different opening sequences of four heald frames, including B-C, B-D, B-C-D, B-D-C, A-D, A-C-D, A-D-C, A-B and B-A, and the structure is ase:Sub>A basis for forming the change of the non-fixed-twisted-group two-warp leno fabric. The detailed ten basic organizational structures are as follows:
(1) B-C basic organization Structure: the half heald B sinks, the skein warp passes from the right side of the ground warp to the left side of the ground warp through the upper part of the ground warp, and G X-1 And S X Forming a shed, the first weft being woven in, and the fabric structure forming process being as shown in figures 9 (a), (b), (c); then the back heald C is lifted G X-1 And S X The open shed is formed, at which time the second weft is woven in, and the fabric structure formation process is as shown in fig. 9 (d), (e).
(2) B-C-D basic organization structure: refers to the lifting of the ground heald D and the lifting of the ground heald G on the basis of the B-C basic organization structure X-1 And S X The normal shed is formed, when the third weft is woven in, and the fabric structure forming process is shown in fig. 9 (f), (g).
(3) B-D basic organization Structure: the half heald B sinks, the skein warp passes from the right side of the ground warp to the left side of the ground warp through the upper part of the ground warp, and G X-1 And S X Forming a shed, the first weft being woven in, and the fabric structure forming process being as shown in figures 10 (a), (b), (c); then the ground heald is lifted by D, G X-1 And S X A normal shed is formed and,at this time, the second weft is woven in, and the fabric structure forming process is shown in fig. 10 (d), (e).
(4) B-D-C basic organization structure: means that on the basis of B-D basic organization structure, the post heald C is promoted, G X-1 And S X The open shed is formed, when the third weft is woven in, and the fabric structure forming process is shown in fig. 10 (f), (g).
(5) A-C basic organization Structure: the semi-heddle A sinks, the skein warp passes through the left side of the ground warp, passes through the lower part of the ground warp and is lifted to the right side of the ground warp, and S X And G X Forming a shed, in which the first weft is woven, and the fabric structure forming process is shown in FIGS. 11 (a), (b), (c); then the back heald C is lifted S X And G X The open shed is formed, at which time the second weft is woven in, and the fabric structure formation process is shown in FIGS. 11 (d), (e).
(6) A-C-D basic organization structure: refers to the lifting of the ground heald D, S, on the basis of the A-C basic organization structure X And G X The normal shed is formed, when the third weft is woven in, and the fabric structure forming process is shown in fig. 11 (f), (g).
(7) A-D basic organization Structure: the half heald A sinks, the skein warp passes from the left side of the ground warp, passes over the ground warp and is lifted to the right side of the ground warp, and S X And G X Forming a shed, the first weft being woven in, and the fabric structure forming process being as shown in figures 12 (a), (b), (c); then the ground heald is lifted D, S X And G X The normal shed is formed, when the second weft is woven in, and the fabric structure is formed as shown in fig. 12 (d), (e).
(8) A-D-C basic organization structure: means that on the basis of A-D basic organization structure, the back harness C is lifted, S X And G X The open shed is formed, when the third weft is woven in, and the fabric structure forming process is shown in fig. 12 (f), (g).
(9) A-B basic organization Structure: the semi-heddle A sinks, the skein warp passes through the upper part of the ground warp from the left side of the ground warp and is lifted to the right side of the ground warp, and S X And G X For forming a shed, in which the first weft is woven in, the fabric structure is formed as shown in FIG. 13The half heald B sinks, the skein passes from the right side of the ground warp to the left side of the ground warp through the upper part of the ground warp, and G X-1 And S X The formation of the shed, when the second weft is woven in, and the fabric structure formation process is shown in fig. 13 (d), (e).
(10) B-A basic organization Structure: the half heald B sinks, the warp is lifted to the left side of the ground warp from the right side of the ground warp and above the ground warp, G X-1 And S X Forming a twisting shed, wherein the first weft is woven in, the fabric structure forming process is as shown in figures 14 (a), (b) and (c), half heald A sinks, the twisted warp passes from the left side of the ground warp, over the ground warp, and is lifted to the right side of the ground warp, S X And G X The shed is formed, the second weft is woven in and the fabric structure is formed as shown in figures 14 (d), (e).
The ten basic tissue structures comprise specific basic structures (1) - (4) and (9) - (10) formed by a lower opening structure of a two-warp twisting machine without a fixed twisting group and a drafting mode, wherein the (1) - (4) relate to G X-1 、S X Two warps; (9) G is related to X-1 、S X 、G X Three warps and base structures (5) - (8) which can be formed by a fixed twisting group and two twisted lower opening mechanisms all relate to S X And G X Two warp threads. The lower opening structure of the non-fixed-twisted-group two-warp leno fabric has more variability than the fabric structure of the lower opening structure of the common fixed-twisted-group two-warp leno fabric, and the formed basic structural units are more abundant, so that a foundation is provided for the change of the fabric.
The embodiment is as follows:
the lower opening mechanism of the second warp leno fabric without the fixed skein group adopts a warp arrangement ratio that skein warp and ground warp are 1, the warping is single-beam warping, the warp raw materials are mulberry silk, cotton yarn and the like, and the total number of warp is 4200. The upper machine width is designed to be 70cm. The weft raw material is mulberry silk, cotton yarn, etc., and the weft density of the machine is 20 pieces/cm. This shedding mechanism involves four heald frames. The two half healds and the two flat healds are arranged from the machine to the machine and then seen. The two half heddles are respectively a half heddle A and a half heddle B, the size of the half heddle A and the size of the half heddle B are 86cm multiplied by 86cm, the harness wire of the half heddle is a wire harness wire, the raw material is nylon, and the density of the harness wire is 15 pieces/cm. Two flat heddles are respectively a ground heddle and a back heddle, and the size of the flat heddles is 86cm multiplied by 86cm. The distance between the half heald A and the cloth fell is 30cm, the distance between the half heald A and the half heald B is 8cm, the distance between the half heald B and the back heald C is 15cm, and the distance between the back heald and the ground heald is 1.5cm.
In the drafting mode of a lower opening mechanism of a fixed-twisting-group-two-warp leno fabric, warps are led out from a rear warp beam of a machine and sequentially pass through a ground heddle D, a rear heddle C, a half heddle B and a half heddle A; the skein S X The ground heald D is penetrated in the air, then the ground heald D penetrates into a heald eye of the back heald C, then the ground heald B penetrates into a half heald ring of the half heald B, and finally the ground heald D penetrates into a half heald ring of the half heald A and is led to the front of the machine; the ground warp G X Penetrating into a heddle eye of a ground heddle D, then penetrating a rear heddle C in an empty manner, and then penetrating from the right side of a half heddle ring adjacent to the right half heddle ring penetrated by a skein B in an empty manner; and finally, leading the half heald ring to the front of the loom after the left side of the half heald ring penetrated by the skein in the half heald A is passed through, finishing the skein and the ground heald, and then fixing the finished warp in the front of the loom. Wherein half heald A sinks, S x And G X Forming a twisting shed, weaving in the No. 1 weft, lifting the twisted warp from the left side of the ground warp to the right side of the ground warp through the upper part of the ground warp, and S X And G X The warp threads are twisted. On the basis of the sinking of the half heald A and the completion of the weaving of the 1 st weft, the half heald B sinks, G X-1 And S x Forming a twisting shed, lifting the twisted warp from the right side of the ground warp to the left side of the ground warp through the upper part of the ground warp, G X-1 And S x And (4) generating twist, and weaving in the second weft at the moment, wherein the fabric structure after two wefts are finished is the minimum circulating unit of the two-warp leno fabric without the fixed twist groups, as shown in figure 14. On the basis that the half heald B sinks and the second weft weaving is finished, three subsequent heald lifting modes are provided, including half heald A sinking, back heald C lifting and ground heald D lifting. It can be seen that a variety of fabric structures can be formed depending on the sequence in which the heald frame is lifted. FIG. 15 is a fabric structure formed from an AB base structure in combination with a BCD base structure; fig. 16, a fabric structure formed from an AB base structure in combination with a BDC base structure. The first weft knitting is finished after the half heald A sinks downOn the basis of the three types of the subsequent heald lifting modes, including sinking of the half heald B; the back heald C is lifted, and the ground heald D is lifted. FIG. 17 is a fabric structure formed from a BA infrastructure in combination with an ACD infrastructure; fig. 18, a fabric structure formed by a BA infrastructure in combination with an ADC infrastructure. The gauze structure obtained by the method can obtain a net-shaped structure like a knitted fabric, has good air permeability and exquisite and beautiful appearance, and can be applied to the application field of high-end textiles. And the structure is stable, the slippage change is not easy to generate, and the physical property is better.
The objects, technical solutions and advantageous effects of the present invention are further described in detail by the above-described embodiments. It will be appreciated that the above embodiments are exemplary and are not intended to limit the invention to wire-line systems. Variations, modifications and changes to the above-described embodiments may occur to those skilled in the art and are within the scope of the invention.
Claims (6)
1. The drafting method of the lower opening mechanism of the two-warp leno fabric without the fixed hank group is characterized in that the lower opening mechanism comprises two pieces of wire half-heddles, namely a half-heddle A and a half-heddle B, and two pieces of flat heddles, namely a back heddle C and a ground heddle D, in the machine-to-machine rear direction; the half heald A and the half heald B are of lower opening structures, and the rear heald C and the ground heald D are of upper opening mechanisms; the warp is led out from a rear warp beam of the machine and sequentially passes through a ground heald D, a rear heald C, a half heald B and a half heald A in sequence;
wherein the skein S X The ground heald D is penetrated in the air, then the ground heald D penetrates into a heald eye of the back heald C, then the ground heald B penetrates into a half heald ring of the half heald B, and finally the ground heald D penetrates into a half heald ring of the half heald A and is pulled to the front of the machine;
wherein the ground warp G X Penetrating into the heddle eye of the ground heddle D, then penetrating the back heddle C in the air, and then drawing the warp from the skein S X The right side of the right adjacent half-heddle ring of the half-heddle ring B is passed through; final secondary hank warp S X The left side of the half-heddle ring penetrating in the half heddle A is pulled to the front of the machine after passing through;
the skein S X And ground warp G X In the order of a set of skein S X A group of ground warps G X Arranged at intervals and twisted with warps S X Ground warp G X Arranged in various proportions according to the design of the fabric, wherein a set of warp yarns S X And a group of ground warps G X Forming a skein.
2. Drafting method according to claim 1, characterized in that half heddle A is sunk and leno S is leno X From ground G X To the left, via ground warp G X Above, is lifted to ground G X Right side, skein S X And ground warp G X Forming a skein shed and weaving in the weft yarns to form an A-shed pattern.
3. Drafting method according to claim 1, characterised in that the half-heddle B is sunk and the leno S is leno X From ground G X-1 To the right, through ground warp G X-1 Above, is lifted to ground G X-1 Left, ground warp G X-1 And the skein S X Forming a twisting shed, weaving in weft yarns and forming a B-opening form.
4. Drafting method as claimed in claim 1, characterized in that the back heddle C is lifted and the leno S is leno warp X Lifting and weaving in the weft yarn to form a C-shaped opening form.
5. Drafting method according to claim 1, characterised in that the ground heddle D is lifted and the ground warp G is ground warp G X Lifting and weaving in the weft yarn to form a D-opening form.
6. Drafting method as claimed in any of the claims 1 to 5, characterized in that at a defined skein S a skein S is specified X Ground warp G X Under the premise that two warps are a twisting group, three special shed forms including B, B-C and B-D can be generated according to different weaving sequences, and all three shed forms relate to ground warp G X-1 Warp of warp X The position change of the two warps is specifically as follows:
b-shed pattern: when the half heald B sinks, the warp is twisted X And ground warp G X-1 Forming a twisting shed;
B-C shed pattern: the half heald B sinks and the ground warp G X-1 And the skein S X Forming a twisting shed, lifting the back heald C and twisting the warp S on the premise of finishing the weaving of weft yarns X And ground warp G X-1 Forming an open shed;
B-D shed pattern: sinking in the half heald B and twisting X And ground warp G X-1 Forming a twisting shed, lifting the ground heald D and twisting the warp S on the premise of finishing the weaving of weft yarns X And ground warp G X-1 Forming a normal shed.
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| CN101016670A (en) * | 2007-03-06 | 2007-08-15 | 南京云锦研究所有限公司 | Device and method for weaving four-and-complexgauze |
| CN105755647B (en) * | 2016-05-17 | 2017-05-31 | 南京云锦研究所有限公司 | The method for weaving of Nanjing brocade diameter yarn |
| CN205934254U (en) * | 2016-08-03 | 2017-02-08 | 湖州永昌丝绸有限公司 | Novel petinet structure |
| CN107419408B (en) * | 2017-09-15 | 2021-02-09 | 成都海蓉特种纺织品有限公司 | Leno weave and weaving method thereof |
| CN111020791A (en) * | 2019-12-16 | 2020-04-17 | 南京锦绣盛世云锦织造有限公司 | Weaving equipment and weaving method of woven lace |
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