CN111334914A - Conjugate cam opening device of loom and weaving method thereof - Google Patents
Conjugate cam opening device of loom and weaving method thereof Download PDFInfo
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- CN111334914A CN111334914A CN202010332637.6A CN202010332637A CN111334914A CN 111334914 A CN111334914 A CN 111334914A CN 202010332637 A CN202010332637 A CN 202010332637A CN 111334914 A CN111334914 A CN 111334914A
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- 238000009941 weaving Methods 0.000 title claims abstract description 49
- 238000000034 method Methods 0.000 title claims abstract description 16
- 239000004744 fabric Substances 0.000 claims abstract description 21
- 238000009434 installation Methods 0.000 claims abstract description 3
- 238000003780 insertion Methods 0.000 claims description 12
- 230000037431 insertion Effects 0.000 claims description 12
- 239000000835 fiber Substances 0.000 claims description 5
- 239000002356 single layer Substances 0.000 abstract description 2
- 238000009987 spinning Methods 0.000 abstract description 2
- 239000010410 layer Substances 0.000 description 22
- 239000003086 colorant Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 235000014676 Phragmites communis Nutrition 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
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- 230000000630 rising effect Effects 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
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- D—TEXTILES; PAPER
- D03—WEAVING
- D03C—SHEDDING MECHANISMS; PATTERN CARDS OR CHAINS; PUNCHING OF CARDS; DESIGNING PATTERNS
- D03C5/00—Cam or other direct-acting shedding mechanisms, i.e. operating heald frames without intervening power-supplying devices
- D03C5/02—Cam or other direct-acting shedding mechanisms, i.e. operating heald frames without intervening power-supplying devices operated by rotating cams
- D03C5/04—Construction or shape of cams
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Abstract
The invention relates to a conjugate cam shedding device of a loom and a weaving method thereof, which solve the technical problem that the existing loom can only weave single-layer cloth, and is provided with a main cam and an auxiliary cam, wherein the main cam and the auxiliary cam are of an integrated structure and jointly control a heald frame, the conjugate cam is divided into an 3/1 conjugate cam and a 1/3 conjugate cam according to the difference of the installation surfaces of the main cam and the auxiliary cam in the loom, the 3/1 conjugate cam drives the heald frame to rotate and has three high points and a low point, the rotation angle between every two adjacent points is 90 degrees, the 1/3 conjugate cam drives the heald frame to rotate and has three low points and a high point, and the rotation angle between every two adjacent points is 90 degrees. The invention also provides a spinning method thereof. The invention can be widely applied to the weaving field.
Description
Technical Field
The invention relates to the technical field of spinning, in particular to a conjugate cam opening device of a weaving machine and a weaving method thereof.
Background
Under the condition of the prior art, the weaving opening divides warp into an upper layer and a lower layer, after a shed is formed, weft yarns are led through the shed to be interwoven with the warp yarns, and then the weft yarns are beaten into a weaving opening through a reed to complete weaving, so that a layer of cloth is formed. The principle is as follows: the existing loom contains six 1/1+1/1 conjugate cams, 1/1+1/1 conjugate cams are characterized by being oval, each having two high points and two low points. When weaving, the third cam and the fifth cam rotate from a low point to a high point to control the third heald frame and the fifth heald frame to move upwards, the fourth cam and the sixth cam rotate from the high point to the low point to control the fourth heald frame and the sixth heald frame to move downwards, so that a weaving opening is formed, and a weft insertion mechanism introduces weft to complete one-time weaving. And then the fourth cam and the sixth cam continue to rotate to reach a high point to control the fourth heald frame and the sixth heald frame to move upwards, the third cam and the fifth cam continue to rotate to reach a low point to control the third heald frame and the fifth heald frame to move downwards, so that a weaving opening is formed, and a weft insertion mechanism introduces weft to finish one-time weaving. And the weaving is realized by the circulation. The weaving method can only realize the weaving of single-layer cloth, if double-layer cloth is woven, two devices are needed to be carried out simultaneously, and the other device is needed to connect the two layers of cloth, so that the production efficiency is low, and the time, the labor and the material resources are consumed.
Disclosure of Invention
The invention provides a conjugate cam opening device of a weaving machine capable of weaving double-layer cloth and a weaving method thereof, aiming at solving the defects of the background technology.
The conjugate cam of the loom is provided with a main cam and an auxiliary cam, the main cam and the auxiliary cam are of an integrated structure and jointly control a heald frame, the conjugate cam is divided into 3/1 conjugate cam and 1/3 conjugate cam according to different installation surfaces of the main cam and the auxiliary cam in the loom, when the 3/1 conjugate cam drives the heald frame to rotate, three high points and one low point are arranged, the rotation angle between every two adjacent points is 90 degrees, when the 1/3 conjugate cam drives the heald frame to rotate, three low points and one high point are arranged, and the rotation angle between every two adjacent points is 90 degrees.
The invention also provides a conjugate cam opening device which is provided with a conjugate cam, wherein a rising conjugate cam is connected with a swing arm part, the swing arm part is provided with a first swing arm, a second swing arm, a clamping block, a connecting block and a connecting rod, the first swing arm is provided with two rotors which are respectively a first rotor and a second rotor, the first rotor and the second rotor are both contacted with the conjugate cam, the upper end of the first swing arm is provided with the clamping block, the clamping block is connected with the second swing arm through the connecting block and the connecting rod in sequence, the lower end of the second swing arm is connected with the first connecting rod and the second connecting rod in sequence, the second connecting rod is connected with two symmetrical lifting parts, the first lifting part and the second lifting part are respectively provided with a swinging angle arm, a third connecting rod and a lifting rod, the second connecting rod is connected with the swinging angle arm, and the swinging angle arm is hinged with the third connecting rod through a pin shaft, the third connecting rod is arranged inside the lifting rod and is connected with the lifting rod through a hinge.
Preferably, the upper end of each lifting rod is provided with a hook head which is fixedly connected with a square block arranged in a heald frame, and the heald frame is fixed on the guide frame.
Preferably, the number of the conjugate cams is 6, and the first conjugate cam, the second conjugate cam, the third conjugate cam, the fourth conjugate cam, the fifth conjugate cam and the sixth conjugate cam are respectively a first conjugate cam, a second conjugate cam, a third conjugate cam, a fourth conjugate cam, a fifth conjugate cam and a sixth conjugate cam, the first conjugate cam and the second conjugate cam are 1+1/1+1 conjugate cams, the third conjugate cam and the fourth conjugate cam are 1/3 conjugate cams, and the fifth conjugate cam and the sixth conjugate cam are 3/1 conjugate cams.
Preferably, 6 conjugate cams control heald frame structures, each heald frame structure is provided with an edge structure and a ground structure, heald frames corresponding to the edge structure are a first heald frame and a second heald frame, and heald frames corresponding to the ground structure are a third heald frame, a fourth heald frame, a fifth heald frame and a sixth heald frame.
Meanwhile, the invention provides a weaving method of a conjugate cam shedding device of a weaving machine, wherein a first conjugate cam drives a first heald frame and a second conjugate cam drives a second heald frame to move up and down to form an edge texture weaving opening, a fifth conjugate cam and a sixth conjugate cam respectively drive a fifth heald frame and a sixth heald frame to move up and down to form an upper layer ground texture weaving opening, a third conjugate cam and a fourth conjugate cam respectively drive a third heald frame and a fourth heald frame to move up and down to form a lower layer ground texture weaving opening, the second heald frame, the fifth heald frame and the sixth heald frame penetrate first warp yarns, first weft yarns are introduced, the first heald frame, the third heald frame and the fourth heald frame penetrate second warp yarns, the second weft yarns are introduced, and the weft insertion mode is that the first weft yarns and the second weft yarns are alternately carried out.
Preferably, the specific steps are as follows:
(1) manually connecting a palm fiber of a third heald frame to the first heald frame, driving the corresponding heald frame to move up and down by the conjugate cam, and weaving four wefts by rotating the conjugate cam for four times;
(2) weft yarn a: the second conjugate cam and the sixth conjugate cam rotate to a high point to control the second heald frame and the sixth heald frame to be on, the first conjugate cam, the third conjugate cam, the fourth conjugate cam and the fifth conjugate cam rotate to a low point to respectively control the first heald frame, the third heald frame, the fourth heald frame and the fifth heald frame to be under, a first warp yarn of the fifth heald frame and a first warp yarn of the sixth heald frame form a ground weave fell, a second warp yarn of the first heald frame and the first warp yarn of the second heald frame form a side weave fell, and the first weft yarn is led to sequentially pass through the side weave fell and the ground weave fell;
(3) b, weft insertion: the first conjugate cam, the fourth conjugate cam, the fifth conjugate cam and the sixth conjugate cam are rotated to a high point to control the first heald frame, the fourth heald frame, the fifth heald frame and the sixth heald frame to be on, and the second conjugate cam and the third conjugate cam are rotated to a low point to control the second heald frame and the third heald frame to be down, so that a second warp of the third heald frame and a second warp of the fourth heald frame form a ground weave fell, the second warp of the first heald frame and the first warp of the second heald frame form a side weave fell, and the second weft is led to sequentially pass through the side weave fell and the ground weave fell;
(4) c, weft insertion: the second conjugate cam and the fifth conjugate cam are rotated to a high point to control a fifth heald frame to be on, the first conjugate cam, the third conjugate cam, the fourth conjugate cam and the sixth conjugate cam are rotated to a low point to control a first heald frame, a third heald frame, a fourth heald frame and a sixth heald frame to be under, a first warp yarn of the fifth heald frame and a first warp yarn of the sixth heald frame form a ground weave fell, a second warp yarn of the first heald frame and the first warp yarn of the second heald frame form a side weave fell, and the first weft yarn is led to sequentially pass through the side weave fell and the ground weave fell;
(5) d, weft: the first conjugate cam, the third conjugate cam, the fifth conjugate cam and the sixth conjugate cam are switched to a high point to control the first heald frame, the third heald frame, the fifth heald frame and the sixth heald frame to be on, the second conjugate cam and the fourth conjugate cam are switched to a low point to control the second heald frame and the fourth heald frame to be under, a second warp of the third heald frame and a second warp of the fourth heald frame form a ground weave fell, the second warp of the first heald frame and the first warp of the second heald frame form a side weave fell, and a second weft insertion is led to sequentially pass through the side weave fell and the ground weave fell;
(6) the double-layer cloth can be woven by repeated circulation by taking the four wefts as a period.
Preferably, the loom is provided with a shuttle throwing side and a shuttle receiving side, the shuttle throwing side is one side close to the shuttle throwing box, the shuttle receiving side is one side close to the shuttle receiving box, and the drafting sequence on each heald frame is from the shuttle throwing side to the shuttle receiving side.
Preferably, the number of warp threads on the first heald frame and the second heald frame is 14, evenly distributed on the shuttle throwing side and the shuttle receiving side.
The invention has the beneficial effects that:
(1) the invention provides a novel conjugate cam, which is characterized in that an 3/1 conjugate cam and a 1/3 conjugate cam 3/1 conjugate cam have three high points and one low point, and a 1/3 conjugate cam has three low points and one high point.
(2) The invention also provides a weaving method, which mainly utilizes 6 conjugate cams, wherein 2 conjugate cams are 3/1 conjugate cams, 2 conjugate cams are 1/3 conjugate cams, each conjugate cam corresponds to one heald frame, the second conjugate cam drives the second heald frame, the fifth conjugate cam and the sixth conjugate cam to respectively drive the fifth heald frame and the sixth heald frame to penetrate first warp yarns, first weft yarns are guided, the first conjugate cam drives the first heald frame, the fourth conjugate cam and the third conjugate cam to respectively drive the fourth heald frame and the third heald frame to penetrate second warp yarns, second weft yarns are guided, the weft insertion mode is that the first weft yarns and the second weft yarns are alternately carried out, a palm fiber of the third heald frame is manually connected to the first heald frame, double-layer cloth can be interwoven together at certain distance, the weaving of double-layer cloth with different colors, different densities and different gram weights on one device is realized, improves the production efficiency, saves manpower and material resources and meets the requirements of different industries on weaving base cloth and ground cloth.
Drawings
FIG. 1 is a schematic view of the 3/1 conjugate cam of the present invention;
FIG. 2 is a schematic view of the 1/3 conjugate cam of the present invention;
FIG. 3 is a schematic structural diagram of a conjugate cam opening device according to the present invention;
FIG. 4 is a weave pattern of a weaving operation in the present invention.
Reference numerals:
1. a main cam; 2. a sub-cam; 101. a first high point; 102. a second high point; 103. a third high point; 104. a fourth low point; 201. a first low point; 202. a second low point; 203. a third low point; 204. a fourth high point;
3. a conjugate cam; 4. a swing arm member; 41. a first swing arm; 42. a second swing arm; 43. a clamping block; 44. connecting blocks; 45. a connecting rod; 46. a first rotor; 47. a second rotor; 5. a first link; 6. a second link; 7. a first lifting member; 8. a second lifting member; 9. a swing angle arm; 10. a third link; 11. a lifting rod; 12. a hook head; 13. a square block; 14. a heald frame; 15. a guide frame;
a weft; II, weft; III, c weft; IV, d latitude;
A. a first heald frame; B. a second heald frame; C. a third heald frame; D. a fourth heald frame; E. a fifth heald frame; F. a sixth heddle frame.
Detailed Description
The invention will be better understood from the following examples. However, those skilled in the art will readily appreciate that the description of the embodiments is only for illustrating the present invention and should not be taken as limiting the invention as described in the claims.
The invention provides a conjugate cam of a textile machine, which comprises a main cam 1 and an auxiliary cam 2 as shown in figure 1, wherein the main cam 1 and the auxiliary cam 2 are of an integrated structure and jointly control a heald frame. For the 3/1 conjugate cam, as shown in FIG. 1, the rotation for one cycle is: when the rotation angle is 0 degrees, the conjugate cam drives the heald frame to be at a first high point 101; when the rotation angle is 90 degrees, the conjugate cam drives the heald frame to be at a second high point 102; when the rotation angle reaches 180 degrees, the conjugate cam drives the heald frame to be at a third high point 103; when the rotation angle is 270 degrees, the conjugate cam drives the heald frame to be at the fourth low point 104, when the rotation angle is 360 degrees, the conjugate cam drives the heald frame to return to the first high point 101 again, and the operation is repeated.
As shown in fig. 2, for the 1/3 conjugate cam, when the rotation angle is 0 °, the conjugate cam drives the heald frame at the first low point 201; when the rotation angle is 90 degrees, the conjugate cam drives the heald frame to be at a second low point 202; when the rotation angle is 180 degrees, the conjugate cam drives the heald frame to be at a third low point 203; when the rotation angle is 270 °, the conjugate cam drives the heald frame to be at the fourth high point 204, and when the rotation angle reaches 360 °, the conjugate cam drives the heald frame to return to the first low point 201 again, and the above steps are repeated.
Further, the number of conjugate cams is 6, and the first conjugate cam, the second conjugate cam, the third conjugate cam, the fourth conjugate cam, the fifth conjugate cam and the sixth conjugate cam are respectively, the first conjugate cam and the second conjugate cam are 1+1/1+1 conjugate cams, the third conjugate cam and the fourth conjugate cam are 1/3 conjugate cams, and the fifth conjugate cam and the sixth conjugate cam are 3/1 conjugate cams.
Furthermore, each conjugate cam correspondingly controls one heald frame, 6 conjugate cams control heald frame tissues, the heald frame tissues are provided with edge tissues and ground tissues, the heald frames corresponding to the edge tissues are a first heald frame and a second heald frame, and the heald frames corresponding to the ground tissues are a third heald frame, a fourth heald frame, a fifth heald frame and a sixth heald frame.
By utilizing the 6 conjugate cams, the specific weaving method of the loom comprises the following steps: the first conjugate cam drives the first heald frame and the second conjugate cam drives the second heald frame to move up and down to form an edge texture weaving opening, the fifth conjugate cam and the sixth conjugate cam respectively drive the fifth heald frame and the sixth heald frame to move up and down to form an upper layer ground texture weaving opening, the third conjugate cam and the fourth conjugate cam respectively drive the third heald frame and the fourth heald frame to move up and down to form a lower layer ground texture weaving opening, the second heald frame, the fifth heald frame and the sixth heald frame penetrate first warp yarns to guide first weft yarns, the first heald frame, the third heald frame and the fourth heald frame penetrate second warp yarns to guide second weft yarns, and the weft guiding mode is that the first weft yarns and the second weft yarns are alternately carried out.
Further, each heald frame is provided with a picking side and a receiving side, and each heald frame passes through warp yarns from the picking side to the receiving side. The number of warp threads on the first heald frame and the second heald frame is 14, and the warp threads are evenly distributed on the shuttle throwing side and the shuttle receiving side. The number of warp yarns of the ground weave is calculated by subtracting 28 warp yarns from the total number of warp yarns, and is uniformly distributed on the third heald frame, the fourth heald frame, the fifth heald frame and the sixth heald frame.
Furthermore, the loom is provided with a shuttle throwing side and a shuttle receiving side, the shuttle throwing side is one side close to the shuttle throwing box, the shuttle receiving side is one side close to the shuttle receiving box, and the warp drafting sequence of each heald frame is from the shuttle throwing side to the shuttle receiving side.
The specific sequence is as follows: and starting to circularly penetrate the warp yarns from the picking side of the second heald frame to the picking side of the first heald frame, then sequentially and circularly penetrating the warp yarns according to the sequence of the sixth heald frame, the fifth heald frame, the fourth heald frame and the third heald frame, and finally finishing by using the picking side of the second heald frame to the picking side of the first heald frame.
Furthermore, the number of the second warp yarns on the first heald frame and the number of the first warp yarns on the second heald frame are 14, and the second warp yarns and the first warp yarns are evenly distributed on the shuttle throwing side and the shuttle receiving side.
The operation organization chart of the double-layer cloth is shown in figure 4, longitudinal directions I, II, III and IV correspond to weft a, weft b, weft C and weft d in sequence, transverse directions A, B, C, D, E and F correspond to a first heald frame, a second heald frame, a third heald frame, a fourth heald frame, a fifth heald frame and a sixth heald frame in sequence, and the shadow part is that a conjugate cam turns to a high point and corresponds to the upper heald frame.
Taking black and white as an example, the first warp yarns are white warp yarns, the first weft yarns are white weft yarns, and the white warp yarns and the white weft yarns are woven into upper-layer white cloth; the second warp yarns are black warp yarns, the second weft yarns are black weft yarns, and the black warp yarns and the black weft yarns are woven into the lower-layer black cloth.
Further, the second heald frame, the fifth heald frame and the sixth heald frame are provided with white warps and white wefts, the first heald frame, the third heald frame and the fourth heald frame are provided with black warps and black wefts, and the specific weaving process is as follows:
(1) and manually connecting one palm fiber of the third heald frame to the first heald frame, moving one palm fiber at intervals of 40cm according to requirements, interweaving the double-layer cloth at intervals of 40cm, driving the corresponding heald frame to move up and down by the conjugate cam, rotating the conjugate cam by 360 degrees, and weaving four wefts for four times.
(2) Weft yarn a: the second conjugate cam and the sixth conjugate cam rotate to a high point to control the second heald frame and the sixth heald frame to be on, the first conjugate cam, the third conjugate cam, the fourth conjugate cam and the fifth conjugate cam rotate to a low point to control the first heald frame, the third heald frame, the fourth heald frame and the fifth heald frame to be under respectively, the white warp of the fifth heald frame and the white warp of the sixth heald frame form a ground weave opening, the black warp of the first heald frame and the white warp of the second heald frame form a side weave opening, and the white weft is led to respectively penetrate through the side weave opening and the ground weave opening.
(3) b, weft insertion: the first conjugate cam, the fourth conjugate cam, the fifth conjugate cam and the sixth conjugate cam are rotated to a high point to control the first heald frame, the fourth heald frame, the fifth heald frame and the sixth heald frame to be on, the second conjugate cam and the third conjugate cam are rotated to a low point to control the second heald frame and the third heald frame to be down, the black warp yarns of the third heald frame and the black warp yarns of the fourth heald frame form a ground weave opening, the black warp yarns of the first heald frame and the white warp yarns of the second heald frame form a side weave opening, and the black weft yarns are led to penetrate through the side weave opening and the ground weave opening.
(4) c, weft insertion: the second conjugate cam and the fifth conjugate cam are rotated to a high point to control the fifth heald frame to be on, the first conjugate cam, the third conjugate cam, the fourth conjugate cam and the sixth conjugate cam are rotated to a low point to control the first heald frame, the third heald frame, the fourth heald frame and the sixth heald frame to be under, the white warp yarns of the fifth heald frame and the white warp yarns of the sixth heald frame form a ground weave opening, the black warp yarns of the first heald frame and the white warp yarns of the second heald frame form an edge weave opening, and the white weft yarns are led to pass through the edge weave opening and the ground weave opening.
(5) d, weft: the first conjugate cam, the third conjugate cam, the fifth conjugate cam and the sixth conjugate cam are rotated to a high point to control the first heald frame, the third heald frame, the fifth heald frame and the sixth heald frame to be on, the second conjugate cam and the fourth conjugate cam are rotated to a low point to control the second heald frame and the fourth heald frame to be under, the black warp yarns of the third heald frame and the black warp yarns of the fourth heald frame form a ground weave fell, the black warp yarns of the first heald frame and the white warp yarns of the second heald frame form a side weave fell, and the black weft yarns are led to penetrate through the side weave fell and the ground weave fell.
(6) The black-white double-layer cloth can be woven by repeated circulation by taking the four wefts as a period.
The invention also provides a conjugate cam opening device, as shown in fig. 3, the conjugate cam opening device is provided with a conjugate cam 3, the conjugate cam 3 is 3/1 conjugate cam or 1/3 conjugate cam, the conjugate cam 3 is connected with a swing arm part 4, the swing arm part 4 is provided with a first swing arm 41, a second swing arm 42, a clamping block 43, a connecting block 44 and a connecting rod 45, the first swing arm 41 is provided with two rotors which are respectively a first rotor 46 and a second rotor 47, the first rotor 46 and the second rotor 47 are both contacted with the conjugate cam 3, and the first rotor 46 and the second rotor 47 are driven to rotate through the rotation of the conjugate cam 3, so that the first swing arm 41 is driven to swing left and right. The upper end of the first swing arm 41 is provided with a clamping block 43, the clamping block 43 is connected with the second swing arm 42 sequentially through a connecting block 44 and a connecting rod 45, the first swing arm 41 is connected with the connecting block 44 through a hinge, the second swing arm 42 is connected with the connecting rod 45 through a hinge, and the connecting block 44 is connected with the connecting rod 45 through a screw.
The lower end of the second swing arm 42 is sequentially connected with the first connecting rod 5 and the second connecting rod 6, the second connecting rod 6 is connected with two symmetrical lifting components through a shaft, the first lifting component 7 and the second lifting component 8 are respectively arranged on the shaft, the first lifting component 7 and the second lifting component 8 are identical in structure, and the first lifting component 7 and the second lifting component 8 are respectively provided with a swing angle arm 9, a third connecting rod 10 and a lifting rod 11. The second connecting rod 6 is connected with a swing angle arm 9 in a shaft mode, the swing angle arm 9 is hinged to a third connecting rod 10 through a pin shaft, and the third connecting rod 6 is arranged inside the lifting rod 11 and is hinged to the lifting rod 11.
Furthermore, the upper end of each lifting rod 11 is provided with a hook 12 for connecting a square block 13 arranged in a heald frame 14, and the heald frame 14 is fixed on a guide frame 15.
The working principle is as follows: when the conjugate cam 3 rotates from the low point to the high point, the first rotor 46 and the second rotor 47 are driven to rotate, the first swing arm 41 and the second swing arm 42 are driven to rotate, the two lifting components are driven to simultaneously lift through the first connecting rod 5 and the second connecting rod 6, and therefore the lifting of the heald frame 14 is controlled. On the contrary, when the conjugate cam 3 rotates from the high point to the low point, the heald frame 14 is controlled to descend.
In addition, the colors of the upper layer cloth and the lower layer cloth are not limited by the above embodiment, and the upper layer cloth and the lower layer cloth can be woven by warp beams of any two colors or the same color, and the selvage hooking device mentioned in the weaving method is a conventional device of a weaving machine, which is the prior art and will not be described too much herein.
The above embodiments are preferred embodiments of the present invention, but the present invention is not limited to the above embodiments, and any other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention should be construed as equivalents thereof, and all such changes, modifications, substitutions, combinations, and simplifications are intended to be included in the scope of the present invention.
Claims (9)
1. A conjugate cam of a weaving machine is characterized by being provided with a main cam and an auxiliary cam, wherein the main cam and the auxiliary cam are of an integrated structure and jointly control a heald frame, the conjugate cam is divided into 3/1 conjugate cams and 1/3 conjugate cams according to the difference of installation surfaces of the main cam and the auxiliary cam in the weaving machine, the 3/1 conjugate cams drive the heald frame to rotate so as to have three high points and one low point, the rotating angle between every two adjacent points is 90 degrees, the 1/3 conjugate cams drive the heald frame to rotate so as to have three low points and one high point, and the rotating angle between every two adjacent points is 90 degrees.
2. The conjugate cam shedding device of a weaving machine according to claim 1, wherein a conjugate cam is provided, the conjugate cam is connected to a swing arm member, the swing arm member is provided with a first swing arm, a second swing arm, a clamping block, a connecting block and a connecting rod, the first swing arm is provided with two rotors, namely a first rotor and a second rotor, the first rotor and the second rotor are both in contact with the conjugate cam, the upper end of the first swing arm is provided with the clamping block, the clamping block is connected to the second swing arm through the connecting block and the connecting rod in sequence, the lower end of the second swing arm is connected to a first connecting rod and a second connecting rod in sequence, the second connecting rod is connected to two symmetrical lifting members, a first lifting member and a second lifting member are respectively provided, the first lifting member and the second lifting member are each provided with a swing angle arm, a third connecting rod and a lifting rod, the second connecting rod shaft is connected with a swing angle arm, the swing angle arm is connected with a third connecting rod hinge through a pin shaft, and the third connecting rod is arranged inside the lifting rod and is connected with the lifting rod hinge.
3. Conjugate cam shedding device in weaving machines according to claim 1, characterized in that each lifting rod is provided at its upper end with a hook for the connection of a square block fixed in a heald frame fixed to a guide frame.
4. The shedding device according to claim 2, wherein the number of the conjugate cams is 6, and the first conjugate cam, the second conjugate cam, the third conjugate cam, the fourth conjugate cam, the fifth conjugate cam and the sixth conjugate cam are respectively a first conjugate cam, a second conjugate cam, a third conjugate cam, a fourth conjugate cam, a fifth conjugate cam and a sixth conjugate cam, the first conjugate cam and the second conjugate cam are 1+1/1+1 conjugate cams, the third conjugate cam and the fourth conjugate cam are 1/3 conjugate cams, and the fifth conjugate cam and the sixth conjugate cam are 3/1 conjugate cams.
5. The conjugate cam shedding device according to claim 4, wherein 6 conjugate cams control a heald frame structure provided with a selvedge structure and a ground structure, wherein heald frames corresponding to the selvedge structure are a first heald frame and a second heald frame, and wherein heald frames corresponding to the ground structure are a third heald frame, a fourth heald frame, a fifth heald frame and a sixth heald frame.
6. The weaving method of the conjugate cam shedding device of the weaving machine according to claim 1, wherein a first conjugate cam drives a first heald frame and a second conjugate cam drives a second heald frame to move up and down to form an edge weave fell, a fifth conjugate cam and a sixth conjugate cam drive a fifth heald frame and a sixth heald frame to move up and down, respectively, to form an upper ground weave fell, a third conjugate cam and a fourth conjugate cam drive a third heald frame and a fourth heald frame to move up and down, respectively, to form a lower ground weave fell, the second heald frame, the fifth heald frame and the sixth heald frame are threaded with a first warp yarn and are threaded with a first weft yarn, and the first heald frame, the third heald frame and the fourth heald frame are threaded with a second warp yarn and are threaded with a second weft yarn in such a manner that the first weft yarn and the second weft yarn are alternately inserted.
7. Weaving method for a conjugate cam shedding device of a weaving machine according to claim 6, characterized by the steps of:
(1) manually connecting a palm fiber of the third heald frame to the first heald frame, driving the corresponding heald frame to move up and down by the conjugate cam, and rotating the conjugate cam for four times to weave four wefts;
(2) weft yarn a: the second conjugate cam and the sixth conjugate cam rotate to a high point to control the second heald frame and the sixth heald frame to be on, the first conjugate cam, the third conjugate cam, the fourth conjugate cam and the fifth conjugate cam rotate to a low point to control the first heald frame, the third heald frame, the fourth heald frame and the fifth heald frame to be under respectively, a first warp yarn of the fifth heald frame and a first warp yarn of the sixth heald frame form a ground weave fell, a second warp yarn of the first heald frame and the first warp yarn of the second heald frame form a ground weave fell, and the first weft yarn sequentially passes through the ground weave fell and the ground weave fell;
(3) b, weft insertion: the first conjugate cam, the fourth conjugate cam, the fifth conjugate cam and the sixth conjugate cam go to a high point to control the first heald frame, the fourth heald frame, the fifth heald frame and the sixth heald frame to be on, and the second conjugate cam and the third conjugate cam go to a low point to control the second heald frame and the third heald frame to be down, so that a second warp of the third heald frame and a second warp of the fourth heald frame form a ground weave fell, the second warp of the first heald frame and the first warp of the second heald frame form a side weave fell, and the second weft is led to sequentially pass through the side weave fell and the ground weave fell;
(4) c, weft insertion: the second conjugate cam and the fifth conjugate cam are rotated to a high point to control the fifth heald frame to be on, the first conjugate cam, the third conjugate cam, the fourth conjugate cam and the sixth conjugate cam are rotated to a low point to control the first heald frame, the third heald frame, the fourth heald frame and the sixth heald frame to be under, a first warp of the fifth heald frame and a first warp of the sixth heald frame form a ground weave fell, a second warp of the first heald frame and the first warp of the second heald frame form a ground weave fell, and the first weft is led to sequentially pass through the ground weave fell and the ground weave fell;
(5) d, weft: the first conjugate cam, the third conjugate cam, the fifth conjugate cam and the sixth conjugate cam go to a high point to control the first heald frame, the third heald frame, the fifth heald frame and the sixth heald frame to be on, the second conjugate cam and the fourth conjugate cam go to a low point to control the second heald frame and the fourth heald frame to be off, a second warp of the third heald frame and a second warp of the fourth heald frame form a ground weave opening, the second warp of the first heald frame and the first warp of the second heald frame form a side weave opening, and the second weft insertion sequentially passes through the side weave opening and the ground weave opening;
(6) the double-layer cloth can be woven by repeated circulation by taking the four wefts as a period.
8. The method of weaving a loom conjugate cam shedding device of claim 6, wherein the loom has a drop side and a take-off side, the drop side being the side near the drop box and the take-off side being the side near the take-off box, and the order of the drafting on each harness frame is from the drop side to the take-off side.
9. The method of weaving conjugate cam shedding devices for weaving looms according to claim 8, characterized in that the number of warp threads on the first and second heald frames is provided with 14, evenly distributed on the drop side and the take-up side.
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