CN111101262A - Yarn-carrying guide sheet, yarn-spreading device of three-dimensional fabric and yarn-spreading mode - Google Patents
Yarn-carrying guide sheet, yarn-spreading device of three-dimensional fabric and yarn-spreading mode Download PDFInfo
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- CN111101262A CN111101262A CN201911343578.6A CN201911343578A CN111101262A CN 111101262 A CN111101262 A CN 111101262A CN 201911343578 A CN201911343578 A CN 201911343578A CN 111101262 A CN111101262 A CN 111101262A
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- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D41/00—Looms not otherwise provided for, e.g. for weaving chenille yarn; Details peculiar to these looms
- D03D41/004—Looms for three-dimensional fabrics
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Abstract
The invention discloses a yarn-carrying guide sheet which comprises a long-strip-shaped guide plate, wherein the middle part of the guide plate is formed into a plate body, two ends of the guide plate in the length direction are respectively formed into a yarn-carrying end and a fixed end, the yarn-carrying end is provided with a yarn-guiding hole, and the yarn-guiding hole extends along the width direction of the guide plate and penetrates through two sides of the yarn-carrying end in the width direction. And a yarn laying device of the three-dimensional fabric, wherein the yarn laying device utilizes the yarn carrying guide sheet as a yarn carrying part. And a yarn laying mode of the three-dimensional fabric, which is carried out by adopting the yarn laying device. The yarn-carrying guide sheet can effectively avoid the extrusion of the steel to the fiber when the fiber is laid, and avoid the breakage and abrasion of the fiber caused by the extrusion.
Description
Technical Field
The invention belongs to the field of integral yarn laying fabrics in three-dimensional fabric weaving, and particularly relates to a yarn carrying guide sheet, a yarn laying device of a three-dimensional fabric and a yarn laying mode.
Background
The yarn-laying three-dimensional fabric is a novel high-tech material, has good mechanical and ablation properties, and is widely applied to the aerospace field.
The three-dimensional fabric formed by the yarn laying process is formed by respectively laying fibers between gaps in the X direction (rows) and the Y direction (columns) of a pre-laid Z-direction steel needle matrix, and replacing Z-direction steel needles with the fibers after the design requirements are met. The yarn laying process can lay the fibers in gaps of a single row or a single column, and also can lay the fibers in gaps of a whole row or a whole column, and the latter is called integral laying, so that the production efficiency is improved, and the integral performance of the single row or column forming fabric is kept. The Z-direction steel needle matrix in the integral laying is different from a mode that one end of a Z-direction steel needle is opened and the other end of the Z-direction steel needle matrix is fixed, and two ends of the Z-direction steel needle matrix are fixed by a special tool before the laying is not finished according to the design requirement so as to ensure that gaps between rows or columns are clear and smooth.
At present, a threading steel sheet is often used as a yarn guiding tool, the threading steel sheet is generally made of a thin steel sheet, an eyelet is formed in the thickness direction of the thin steel sheet, and then a yarn is threaded on the eyelet. Because the clear distance between the adjacent steel needles is narrow, when the threading steel sheet carries fibers to shuttle between the steel needles, the sum of the thickness of the steel sheet and the diameter thicknesses of the yarns at two sides exceeds the clear distance between the adjacent steel needles, the yarns can be bent at a small radius of approximately 90 degrees under the extrusion of the steel needles in the weaving process, and because the fibers adopted by the three-dimensional fabric are usually inorganic fibers such as carbon fibers, basalt fibers and glass fibers, the fibers are subjected to surface treatment, the flexibility of the fibers is improved, and a certain curvature can be borne, but in the process of weaving the three-dimensional fabric, the bending radius generated by the yarns is extremely small, the fibers are broken or abraded frequently, the quality of the fibers is influenced, and the quality of the whole three-dimensional fabric is influenced. In addition, when the fiber is broken, the broken end of the fiber needs to be processed by stopping, and the joint needs to be reconnected, so that the weaving speed and the weaving efficiency are influenced.
Disclosure of Invention
In order to solve the above problem, this application at first provides a guide piece of carrying yarn, utilizes this guide piece of carrying yarn can avoid effectively when laying the fibre, and the steel is to fibrous extrusion, avoids fibre because break and wearing and tearing that the extrusion produced, and concrete technical scheme is:
a yarn carrying guide sheet comprises a long guide plate, wherein the middle part of the guide plate is formed into a plate body, two ends of the guide plate in the length direction are respectively formed into a yarn carrying end and a fixed end, and a yarn guiding hole is formed in the yarn carrying end and extends along the width direction of the guide plate and penetrates through two sides of the yarn carrying end in the width direction.
When the yarn-carrying guide piece works, the length direction of the guide plate extends along the horizontal direction, the width direction of the guide plate extends along the vertical direction, the fibers penetrate through the yarn guiding holes along the vertical direction, and when the yarn-carrying guide piece carries the fibers to shuttle between the steel needle matrixes, the huge spaces at the upper side and the lower side of the yarn-carrying guide piece provide guarantee for barrier-free movement of the fibers, so that collision or friction mainly occurs between the yarn-carrying guide piece and the steel needles; and the fiber can be rubbed with the steel needle at the outermost side only when the fiber guide frame is greatly deviated, the fiber cannot be greatly bent and only slightly bent, and the fiber cannot be abraded. The friction of steel against the fiber and the large bending phenomenon caused by the friction are avoided, the damage caused by the fiber is avoided, the weaving can be smoothly carried out, and the weaving efficiency is improved. The damage to the fiber is reduced, and the quality of the fabric is directly improved.
In order to further avoid the abrasion of the fiber, the cross section of the yarn guiding hole is circular, and both ends of the yarn guiding hole are rounded. The cross-section of the yarn leading hole is circular, so that the abrasion of the inner wall of the yarn leading hole to the fiber can be avoided when the fiber moves and rotates in the yarn leading hole. The two ends of the yarn guiding hole are rounded, so that the phenomenon that the edge of the yarn guiding hole is too sharp to scratch fibers can be avoided.
Furthermore, in order to avoid the yarn carrying guide piece from colliding with the steel needle to block the movement of the steel needle in the moving process, the end face of the yarn carrying end is arc-shaped when the yarn carrying guide piece is observed along the width direction of the guide plate. The end face of the yarn carrying end may be in the shape of a single radius arc, for example the end face may be a part of a circle. The end face of the yarn carrying end may be shaped like a multi-radius arc, and may be, for example, a part in the major axis direction or a part in the minor axis direction of an ellipse.
And in order to avoid causing damage to fibers or operators, the top corners of the yarn carrying ends are also preferably rounded.
Further, in the width direction of the guide plate, at least one side surface of the yarn carrying end in the width direction exceeds the side surface of the plate body facing the same side outwards. This design can make and carry at least one side formation boss of yarn end, and this boss can make the fibre rub with the side of carrying the yarn end at most, rubs with the side of boss only promptly, and can not rub with the side of the rest of deflector, has reduced the fibre effectively and has carried the friction region of yarn guide piece, guarantees fibrous quality.
Secondly, the application also provides a yarn paving device of the three-dimensional fabric, which comprises a rack, an upper fixing tool plate, a lower fixing tool plate and a steel needle matrix, wherein the upper fixing tool plate and the lower fixing tool plate extend along the horizontal direction and are parallel to each other; the steel needle matrix is composed of a plurality of steel needles which extend along the vertical direction and are arranged in a matrix manner, the upper end of any steel needle in the steel needle matrix is detachably fixed on the upper fixing tool plate, and the lower end of any steel needle in the steel needle matrix is detachably fixed on the lower fixing tool plate;
a plurality of steel needles of the steel needle matrix are arranged into N rows and M rows; a first yarn carrying channel is formed between two adjacent rows of steel needles to form N-1 rows of first yarn carrying channels, and two adjacent first yarn carrying channels are respectively a first A-type yarn carrying channel and a first B-type yarn carrying channel, so that the first A-type yarn carrying channels and the first B-type yarn carrying channels are arranged at intervals;
a second yarn carrying channel is formed between two adjacent rows of steel needles, and M-1 rows of second yarn carrying channels are formed together; two adjacent second yarn carrying channels are respectively a second A-type yarn carrying channel and a second B-type yarn carrying channel, so that the second A-type yarn carrying channel and the second B-type yarn carrying channel are arranged at intervals;
the yarn paving device also comprises a first A-type guide sheet group, a first B-type guide sheet group, a second A-type guide sheet group and a second B-type guide sheet group;
the first A-type guide plate group comprises a first connecting plate I and at least two first A-type yarn-carrying guide plates connected to the first connecting plate I, and the at least two first A-type yarn-carrying guide plates correspond to a first A-type yarn-carrying channel respectively;
the first B-type guide plate group comprises a first connecting plate II and at least two first B-type yarn-carrying guide plates connected to the first connecting plate II, and the at least two first B-type yarn-carrying guide plates respectively correspond to a first B-type yarn-carrying channel;
the first A-type yarn-carrying guide sheet and the first B-type yarn-carrying guide sheet are any yarn-carrying guide sheet;
the lengths of the first A-type yarn-carrying guide piece and the first B-type guide piece extend along the horizontal direction, and the widths of the first A-type yarn-carrying guide piece and the first B-type guide piece extend along the vertical direction;
the first A-type guide piece group and the first B-type guide piece group are movably mounted on the rack, and under the pushing of external force, the first A-type yarn-carrying guide piece can be inserted into the corresponding first A-type yarn-carrying channel, the yarn-guiding hole of the first A-type yarn-carrying guide piece can pass through the steel needle matrix and reach the outer side of the steel needle matrix, the first B-type yarn-carrying guide piece can be inserted into the corresponding first B-type yarn-carrying channel, and the yarn-guiding hole of the first B-type yarn-carrying guide piece can be positioned on the outer side of the steel needle matrix;
the second A-type guide piece group comprises a second connecting plate I and at least two second A-type yarn-carrying guide pieces connected to the second connecting plate I, and the at least two second A-type yarn-carrying guide pieces correspond to a second A-type yarn-carrying channel respectively;
the second B-type guide piece group comprises a second connecting plate II and at least two second B-type yarn-carrying guide pieces connected to the second connecting plate II, and the at least two second B-type yarn-carrying guide pieces correspond to a second B-type yarn-carrying channel respectively;
the second A-type yarn-carrying guide sheet and the second B-type yarn-carrying guide sheet are any yarn-carrying guide sheet;
the lengths of the second A-type yarn-carrying guide sheet and the second B-type guide sheet extend along the horizontal direction, and the widths of the second A-type yarn-carrying guide sheet and the second B-type guide sheet extend along the vertical direction;
the second A-type guide piece group and the second B-type guide piece group are movably mounted on the rack, under the pushing of external force, the second A-type yarn-carrying guide piece can be inserted into the corresponding second A-type yarn-carrying channel, yarn-guiding holes of the second A-type yarn-carrying guide piece pass through the steel needle matrix and reach the outer side of the steel needle matrix, the second B-type yarn-carrying guide piece is inserted into the corresponding second B-type yarn-carrying channel, and the yarn-guiding holes of the second B-type yarn-carrying guide piece are located on the outer side of the steel needle matrix.
Yarn guide piece is taken to first A type, yarn guide piece is taken to first B type, yarn guide piece is taken to second A type and yarn guide piece is taken to second B type and yarn guide piece is the yarn guide piece of taking among the above-mentioned technical scheme, and the length of the yarn guide piece of should taking all extends along the horizontal direction, and the width of taking the yarn guide piece all extends along vertical direction to make and lead the yarn hole and extend along vertical direction.
When the yarn-carrying guide sheet carries the fibers to shuttle between the steel needle matrixes, the huge spaces at the upper side and the lower side of the yarn-carrying guide sheet provide guarantee for barrier-free movement of the fibers, so that collision or friction mainly occurs between the yarn-carrying guide sheet and the steel needles; and the fiber can be rubbed with the steel needle at the outermost side only when the fiber guide frame is greatly deviated, the fiber cannot be greatly bent and only slightly bent, and the fiber cannot be abraded. The friction of steel against the fiber and the large bending phenomenon caused by the friction are avoided, the damage caused by the fiber is avoided, the weaving can be smoothly carried out, and the weaving efficiency is improved. The damage to the fiber is reduced, and the quality of the fabric is directly improved.
In the yarn paving device, two guide sheet groups, namely a first A-type guide sheet group and a first B-type guide sheet group, are arranged corresponding to a first yarn carrying channel and a first A-type yarn carrying channel respectively, when the yarn paving device works, the first A-type guide sheet group and the first B-type guide sheet group can move synchronously or step by step, when the yarn paving device moves step by step, only one yarn carrying guide sheet in two adjacent yarn carrying channels moves, and when a steel needle deforms under the action of the yarn carrying guide sheet, the steel needle can bend towards the inner part of the adjacent first yarn carrying channel, so that overlarge pressure on the yarn carrying guide sheet is avoided, and the reduction of abrasion caused by the overlarge pressure is facilitated.
When the first A-type guide piece group and the first B-type guide piece group move synchronously, the first A-type guide piece group and the first B-type guide piece group are two independent parts, the first A-type guide piece group and the first B-type guide piece group can be separated in the height direction, so that a distance is reserved between the first A-type guide piece group and the first B-type guide piece group in the height direction, therefore, the yarn-carrying guide pieces are arranged in the first yarn-carrying channel at intervals in the same height, steel needles on two sides of the yarn-carrying guide pieces are bent, sufficient expansion space is reserved, the bending of the steel needles is not limited, and therefore, larger extrusion force between the steel needles and the yarn-carrying guide pieces is avoided, and a large amount of abrasion caused by the extrusion force is avoided. The second A-type guide plate group and the second B-type guide plate group are arranged separately and have the same function and purpose.
Furthermore, the yarn laying device is also provided with a first ejection device, and the first ejection device comprises a first rotating shaft which is rotatably arranged on the frame and a plurality of first ejection pieces which are fixedly arranged on the first rotating shaft;
each first ejection piece corresponds to one first A-shaped yarn-carrying guide piece, the first A-shaped yarn-carrying guide piece movably abuts against the corresponding first ejection piece, and the first A-shaped guide piece group is provided with a first lower limit position and a first upper limit position in the height direction; the first rotating shaft is rotated, so that the first ejection piece can rotate between the horizontal direction and the vertical direction, and the first A-type guide plate group is driven to move between a first lower limit position and a first upper limit position; in the height direction, when the first A-type guide piece group is located at the first lower limit position, the adjacent first A-type yarn-carrying guide piece and the first B-type yarn-carrying guide piece are at least partially overlapped, and when the first A-type guide piece group is located at the first upper limit position, a distance is reserved between the adjacent first A-type yarn-carrying guide piece and the first B-type yarn-carrying guide piece.
When the first A-type yarn-carrying guide piece and the first B-type yarn-carrying guide piece are located at the same height and are shuttled in the steel needle matrix, when the steel needles are extruded, the steel needles cannot be bent and deformed sufficiently, and can only rub with the first A-type yarn-carrying guide piece and the first B-type yarn-carrying guide piece under larger pressure, so that the steel needles, the first A-type yarn-carrying guide piece and the first B-type yarn-carrying guide piece are greatly abraded, and the service lives of the parts can be greatly prolonged. After the first ejection device is adopted, the first A-type yarn-carrying guide piece and the first B-type yarn-carrying guide piece can be separated in the height direction, when the first A-type yarn-carrying guide piece and the first B-type yarn-carrying guide piece shuttle between the steel needle matrixes, the steel needles deform under the extrusion of the first A-type yarn-carrying guide piece or the first B-type yarn-carrying guide piece, a sufficient bending space is provided, and although certain abrasion can still be generated, the abrasion is greatly reduced compared with the condition that the first A-type yarn-carrying guide piece and the first B-type yarn-carrying guide piece are positioned at the same height, so that the service life of related parts can be prolonged.
Based on the same reason, the yarn laying device is also provided with a second ejection device, and the second ejection device comprises a second rotating shaft which is rotatably arranged on the rack and a plurality of second ejection pieces which are fixedly arranged on the second rotating shaft;
each second ejection piece corresponds to one second A-shaped yarn-carrying guide piece, the second A-shaped yarn-carrying guide piece movably abuts against the corresponding second ejection piece, and the second A-shaped guide piece group is provided with a second lower limit position and a second upper limit position in the height direction; the first rotating shaft is rotated, so that the first ejection piece can rotate between the horizontal direction and the vertical direction, and the second A-type guide plate group is driven to move between the second lower limit position and the second upper limit position; in the height direction, when the second A-type guide piece group is located at the second lower limit position, the adjacent second A-type yarn-carrying guide piece and the second B-type yarn-carrying guide piece are at least partially overlapped, and when the second A-type guide piece group is located at the second upper limit position, a distance is reserved between the adjacent second A-type yarn-carrying guide piece and the second B-type yarn-carrying guide piece.
Thirdly, the application also provides a yarn paving mode of the three-dimensional fabric, which is characterized in that any one yarn paving device of the three-dimensional fabric is adopted;
the four outer sides of the steel needle matrix are sequentially provided with a first side, a second side, a third side and a fourth side, wherein the first side and the third side are oppositely arranged, and two ends of the first yarn carrying channel are respectively communicated with the first side and the third side; the second side and the fourth side are arranged oppositely, and two ends of the second yarn carrying channel are communicated with the second side and the fourth side respectively.
The yarn laying method comprises the following steps:
(1) moving a first yarn-carrying guide sheet to a first side of a steel needle matrix, and then fixing a first fiber on a No. 1 first front fixing piece after passing through a yarn guide hole of the first yarn-carrying guide sheet, wherein the first yarn-carrying guide sheet comprises a first A-type yarn-carrying guide sheet and a first B-type yarn-carrying guide sheet;
moving a second yarn-carrying guide sheet to the second side of the steel needle matrix, and then fixing a second fiber on a No. 1 second front fixing piece after passing through a yarn guide hole of the second yarn-carrying guide sheet, wherein the second yarn-carrying guide sheet comprises a second A-type yarn-carrying guide sheet and a second B-type yarn-carrying guide sheet;
(2) rotating the first rotating shaft, pushing the first ejection device to be positioned at a first upper limit position, then pushing the first A-type guide plate group and the first B-type guide plate group, enabling the first yarn-carrying guide plate to carry first fibers to move along the first yarn-carrying channel, enabling a yarn-leading hole of the first yarn-carrying guide plate to reach the outer side of the third side of the steel needle matrix, then rotating the first rotating shaft, enabling the first ejection device to be positioned at a first lower limit position, and hooking the first fibers on a # 1 first rear fixing piece;
moving the first A-type guide plate group and the first B-type guide plate group towards the direction departing from the third side to enable the first yarn-carrying guide plate to exit from the first yarn-carrying channel, and then hooking the first fiber on the No. 2 first front fixing piece; pausing the movement of the first A-type guide plate group and the first B-type guide plate group, rotating the first rotating shaft, and pushing the first ejection device to be positioned at a first upper limit position;
pressing down the first fibers shuttled in the steel needle matrix;
(3) rotating the second rotating shaft, pushing the second ejection device to be located at a second upper limit position, then pushing the second A-type guide plate group and the second B-type guide plate group, enabling the second yarn-carrying guide plate to carry second fibers to move along the second yarn-carrying channel, enabling a yarn-leading hole of the second yarn-carrying guide plate to reach the outer side of the fourth side of the steel needle matrix, then rotating the second rotating shaft, enabling the second ejection device to be located at a second lower limit position, and hooking the second fibers on a # 1 second rear fixing piece;
moving the second A-type guide plate group and the second B-type guide plate group towards the direction departing from the fourth side to enable the second yarn carrying guide plate to exit from the second yarn carrying channel, and then hooking the second fibers on the No. 2 second front fixing piece; the second A-type guide plate group and the second B-type guide plate group are paused to move, and then the second rotating shaft is rotated to push the second ejection device to be positioned at a second upper limit position;
pressing the second fibers shuttled in the steel needle matrix downwards;
(4) keeping the first ejection device at a first upper limit position, pushing the first A-type guide plate group and the first B-type guide plate group to enable the first yarn-carrying guide plate to carry first fibers to move along the first yarn-carrying channel, enabling a yarn-leading hole of the first yarn-carrying guide plate to reach the outer side of a third side of the steel needle matrix, rotating the first rotating shaft to enable the first ejection device at a first lower limit position, and hooking the first fibers on a No. 2 first rear fixing piece;
moving the first A-type guide plate group and the first B-type guide plate group towards the direction departing from the third side to enable the first yarn-carrying guide plate to exit from the first yarn-carrying channel, and then hooking the first fiber on the No. 2 first front fixing piece; the first A-type guide plate group and the first B-type guide plate group are paused again, and then the first rotating shaft is rotated to push the first ejection device to be positioned at the first upper limit position;
pressing down the first fibers shuttled in the steel needle matrix;
(5) keeping the second ejection device at a second upper limit position, pushing the second A-type guide plate group and the second B-type guide plate group to enable the second yarn-carrying guide plate to carry second fibers to move along the second yarn-carrying channel, enabling a yarn-leading hole of the second yarn-carrying guide plate to reach the outer side of the fourth side of the steel needle matrix, rotating the second rotating shaft to enable the second ejection device at a second lower limit position, and hooking the second fibers on a # 1 second rear fixing piece;
moving the second A-type guide plate group and the second B-type guide plate group towards the direction departing from the fourth side to enable the second yarn carrying guide plate to exit from the second yarn carrying channel, and then hooking the second fibers on the No. 1 second front fixing piece; the second A-type guide plate group and the second B-type guide plate group are paused again, and then the second rotating shaft is rotated, so that the second ejection device is positioned at a second upper limit position;
pressing the second fibers shuttled in the steel needle matrix downwards;
(6) and (5) repeating the step (4) and the step (5) until the laying of the first fibers and the second fibers is completed.
Preferably, the first A-type guide plate group and the first B-type guide plate group move simultaneously when moving; the second A-type guide plate group and the second B-type guide plate group move simultaneously when moving.
In the yarn laying mode, the first A-type yarn carrying guide sheet and the first B-type yarn carrying guide sheet carry first fibers, and when the yarns shuttle in the steel needle matrix, the huge spaces at the upper side and the lower side of the yarn carrying guide sheet provide guarantee for barrier-free movement of the fibers, so that collision or friction mainly occurs between the yarn carrying guide sheet and the steel needles; and the fiber can be rubbed with the steel needle at the outermost side only when the fiber guide frame is greatly deviated, the fiber cannot be greatly bent and only slightly bent, and the fiber cannot be abraded. The friction of steel against the fiber and the large bending phenomenon caused by the friction are avoided, the damage caused by the fiber is avoided, the weaving can be smoothly carried out, and the weaving efficiency is improved. The damage to the fiber is reduced, and the quality of the fabric is directly improved.
When the second A-type yarn-carrying guide sheet and the second B-type yarn-carrying guide sheet carry the second fibers to shuttle in the steel needle matrix, the effect same as that of the first A-type yarn-carrying guide sheet and the first B-type yarn-carrying guide sheet is achieved.
Because separate first A type guide piece group and first B type guide piece group on the direction of height to make distance have in the direction of height between the two, can make from this on same height, it sets up in first yarn passageway to take yarn guide piece interval, the steel needle that makes yarn guide piece both sides of taking takes place when crooked, has abundant expanded space, can not produce the restriction to the bending of steel needle, avoid from this to produce great extrusion force between steel needle and the yarn guide piece, and avoid from this and a large amount of wearing and tearing that produce.
The second a-type guide plate group and the second B-type guide plate group are separated in the height direction, and the same functional purpose is also achieved.
Drawings
Fig. 1 is a schematic structural view of an embodiment of a yarn carrying guide sheet.
Fig. 2 is a top view of fig. 1.
Fig. 3 is a schematic structural diagram of an embodiment of a yarn laying device of a three-dimensional fabric.
Fig. 4 is another state diagram of fig. 3.
Fig. 5 is a schematic structural diagram of the first ejection device, specifically, a schematic state diagram of the first ejection device.
Fig. 6 is another state diagram of fig. 5.
Fig. 7 is a state diagram after the first fiber fixing is completed in the yarn laying method of the three-dimensional fabric.
Fig. 8 is a state view of the first fiber after passing through the first yarn carrying passage.
FIG. 9 is a state view of the first fiber after it exits the first yarn carrying channel.
Fig. 10 is a state diagram after the first fiber has passed through the first yarn carrying passage again.
FIG. 11 is a state view of the first fiber after it has exited the first yarn carrying channel again.
FIG. 12 is a top view of a steel needle matrix.
Detailed Description
First, a yarn carrying guide piece 10 is described, referring to fig. 1 and fig. 2, the yarn carrying guide piece 10 includes an elongated guide plate 11, a middle portion of the guide plate 11 is formed as a plate body 14, two ends of the guide plate 11 in a length direction are respectively formed as a yarn carrying end 15 and a fixed end 16, a yarn carrying hole 12 is provided at the yarn carrying end 15, and the yarn carrying hole 12 extends along a width direction S of the guide plate and penetrates through two sides of the yarn carrying end in the width direction.
In fig. 1 and 2, the direction of the arrow marked R indicates the longitudinal direction of the guide plate, i.e. the longitudinal direction of the yarn carrying guide piece; the direction of the arrow marked S indicates the width direction of the guide plate, i.e. the width direction of the yarn-carrying guide piece; the direction of the arrow marked W indicates the thickness direction of the guide plate, i.e. the thickness direction of the yarn-carrying guide piece.
The cross section of the yarn guiding hole 12 is circular, the two ends of the yarn guiding hole are respectively a first end part 122 and a second end part 123, and the first end part 122 and the second end part 123 are rounded, namely, the two ends of the yarn guiding hole 12 are rounded.
The end face 151 of the yarn carrying end 15 is arc-shaped as viewed in the width direction S of the guide plate. The end surface 151 of the yarn carrying end may have a single radius arc shape or a multiple radius arc shape. In this embodiment, the end surface 151 of the yarn carrying end is a portion of an ellipse.
To avoid scratching the yarn, in this embodiment, all sharp corners of the guide plate are rounded.
In this embodiment, in the width direction S of the guide plate, two side surfaces in the width direction of the yarn carrying end 15 are a first yarn carrying side surface 152 and a second yarn carrying side surface 153, respectively, and two side surfaces in the width direction of the plate body 14 are a first plate body side surface 142 and a second plate body side surface 143, respectively, wherein the first yarn carrying side surface 152 and the first plate body side surface 142 face the same direction, and the second yarn carrying side surface 153 and the second plate body side surface 143 face the same direction. In the width direction S of the guide plate, the first yarn-carrying side 152 extends outward beyond the first plate body side 142, and the second yarn-carrying side 153 extends outward beyond the second plate body side 143. It is understood that in other embodiments, only the first yarn carrying side 152 may be outwardly beyond the first body side 142, or only the second yarn carrying side 153 may be outwardly beyond the second body side 143. Namely, in the width direction of the guide plate, the side surface of at least one side in the width direction of the yarn carrying end extends outwards beyond the side surface of the plate body facing the same side.
In fig. 1 and 2, the identified XYZ axes system is the same as the XYZ axes system in fig. 3 described below. In fig. 1 and 2, the yarn carrying guide piece 10 is shown in a state mounted in a yarn laying device 900 for a three-dimensional woven fabric in which the width direction of the yarn carrying guide piece 10 extends in the Z-axis direction.
The yarn laying device for the three-dimensional fabric will be described below.
Referring to fig. 3 and 4, a yarn laying device 900 for a three-dimensional fabric includes a frame, an upper fixing plate 301, a lower fixing plate 303 and a steel needle matrix 300, which are not shown in the drawing.
Should go up fixed frock board 301 and fixed frock board 303 down and all extend and be parallel to each other along the horizontal direction, and go up fixed frock board 301 and be located the top of fixed frock board 303 down. The steel needle matrix 300 is composed of a plurality of steel needles 310 extending in the vertical direction and arranged in a matrix, the upper end of any steel needle in the steel needle matrix is detachably fixed on the upper fixing tool plate 301, and the lower end of any steel needle in the steel needle matrix is detachably fixed on the lower fixing tool plate 303. A pressing plate 302 is movably arranged on the steel needle matrix in a penetrating way, a needle passing hole is arranged on the pressing plate 302, the steel needle 310 freely passes through the needle passing hole, and the pressing plate 302 is used for pressing down the fibers laid in the A-type yarn carrying channel and the fibers laid in the B-type yarn carrying channel.
The plurality of steel pins 310 of the steel pin matrix 300 are arranged in N rows and M rows, and in the present embodiment, the steel pin matrix 300 exemplarily shows 11 rows and 11 columns. For convenience of description, an XYZ coordinate is set in fig. 3, in which X and Y axes indicate extending in a horizontal direction and perpendicular to each other, and a Z axis extends in a vertical direction.
In the steel needles 310 of the steel needle matrix 300, a first yarn carrying channel is formed between two adjacent rows of steel needles, so that N-1 rows of first yarn carrying channels are formed, that is, 10 rows of first yarn carrying channels are formed, and in fig. 3, the first yarn carrying channels extend along the direction of the X axis. Two adjacent first yarn carrying channels are respectively a first A-type yarn carrying channel 331 and a first B-type yarn carrying channel 332, so that the first A-type yarn carrying channel 331 and the first B-type yarn carrying channel 332 are arranged at intervals, namely, five first A-type yarn carrying channels 331 and five first B-type yarn carrying channels 332 are provided.
In the steel needles 310 of the steel needle matrix 300, a second yarn carrying channel is formed between two adjacent rows of steel needles, so that M-1 rows of second yarn carrying channels are formed, that is, 10 rows of second yarn carrying channels are formed, and in fig. 3, the second yarn carrying channels extend along the Y-axis direction. Two adjacent second yarn carrying channels are respectively a second a-type yarn carrying channel 341 and a second B-type yarn carrying channel 342, so that the second a-type yarn carrying channel 341 and the second B-type yarn carrying channel 342 are arranged at intervals, that is, five second a-type yarn carrying channels 341 and five second B-type yarn carrying channels 342 are provided.
In this embodiment, all the steel needles are steel needles of the same type, and the widths of the first yarn carrying channel and the second yarn carrying channel are the same.
The yarn laying device further comprises a first A-type guide sheet group 400, a first B-type guide sheet group 500, a second A-type guide sheet group and a second B-type guide sheet group.
The first a-type guiding plate set 400 comprises a first connecting plate i 410 and five first a-type yarn-carrying guiding plates 420 connected to the first connecting plate i 410, and the five first a-type yarn-carrying guiding plates 420 respectively correspond to a first a-type yarn-carrying passage 331.
The first type-B guide plate group 500 comprises a first connecting plate ii 510 and five first type-B yarn-carrying guide plates 520 connected to the first connecting plate ii 510, and the five first type-B yarn-carrying guide plates 520 respectively correspond to one first type-B yarn-carrying channel 332.
The first a-type yarn-carrying guide piece 420 and the first B-type yarn-carrying guide piece 520 are both the yarn-carrying guide pieces 10 described above.
The lengths of the first a-type yarn-carrying guide piece 420 and the first B-type guide piece 520 extend along the X-axis direction, i.e. along the horizontal direction, and the widths of the first a-type yarn-carrying guide piece 420 and the first B-type guide piece 520 extend along the Z-axis direction, i.e. along the vertical direction.
In this embodiment, in order to enable the first a-type guide plate group 400 and the first B-type guide plate group 500 to be stacked in the vertical direction in order to reduce the space occupied by the first a-type guide plate group 400 and the first B-type guide plate group 500 during the period of stopping work, the first connecting plate i 410 is located on the upper side of the five first a-type yarn-carrying guide plates 420, and the first connecting plate ii 510 is located on the lower side of the five first B-type yarn-carrying guide plates 520, so that the first a-type yarn-carrying guide plates 420 and the first B-type yarn-carrying guide plates 520 can be inserted together at intervals in the vertical direction.
The first a-type guide plate group 400 and the first B-type guide plate group 500 are both movably mounted on the frame, and under the pushing of an external force, the first a-type yarn-carrying guide plate 420 can be inserted into the corresponding first a-type yarn-carrying channel 331, and the yarn-guiding hole of the first a-type yarn-carrying guide plate passes through the steel needle matrix and reaches the outer side of the steel needle matrix, and the first B-type yarn-carrying guide plate 520 can be inserted into the corresponding first B-type yarn-carrying channel 332, and the yarn-guiding hole of the first B-type yarn-carrying guide plate is located at the outer side of the steel needle matrix.
This second A type guide piece group includes that a second connecting plate I and at least two second A type connected on this second connecting plate I are taken yarn guide piece, and this at least two second A type are taken yarn guide piece and are taken yarn passageway corresponding to a second A type respectively.
The second B-type guide piece group comprises a second connecting plate II and at least two second B-type yarn carrying guide pieces connected to the second connecting plate II, and the at least two second B-type yarn carrying guide pieces are respectively corresponding to a second B-type yarn carrying channel.
The second a-type and the second B-type yarn-carrying guide pieces are both the yarn-carrying guide pieces 10 described above.
The length of this second A type guide piece of carrying yarn and second B type guide piece all extends along the horizontal direction, and this second A type guide piece of carrying yarn and the width of second B type guide piece all extend along vertical direction.
In this embodiment, the structure of the second a-type guide plate set is the same as that of the first a-type guide plate set 400, and please refer to the structure of the first a-type guide plate set 400. The structure of the second B-type guide plate set is substantially the same as that of the first B-type guide plate set 500, and please refer to the structure of the first B-type guide plate set 500.
The second A-type guide piece group and the second B-type guide piece group are movably mounted on the rack, under the pushing of external force, the second A-type yarn-carrying guide piece can be inserted into the corresponding second A-type yarn-carrying channel, yarn-guiding holes of the second A-type yarn-carrying guide piece are located on the outer side of the steel needle matrix, the second B-type yarn-carrying guide piece is inserted into the corresponding second B-type yarn-carrying channel, and the yarn-guiding holes of the second B-type yarn-carrying guide piece are located on the outer side of the steel needle matrix.
In the present embodiment, the yarn laying device is further provided with a first ejection device 20, please refer to fig. 5 and fig. 6, the first ejection device 20 includes a first rotating shaft 21 rotatably mounted on the frame by using a bearing, and five first ejection members 22 fixedly mounted on the first rotating shaft. A handle 23 is provided at one end of the first rotary shaft 21 in the longitudinal direction, and the first ejector 20 can be rotated by rotating the handle 23. The first ejector 22 has an elongated plate shape.
Each first ejector 22 corresponds to one first a-shaped yarn-carrying guide piece 420, and the first a-shaped yarn-carrying guide piece 420 movably presses against the corresponding first ejector 22, and the first a-shaped guide piece group 400 has a first lower limit position and a first upper limit position in the height direction. In fig. 3, the first a-type vane group 400 is located at a first lower limit position in the height direction; in fig. 4, the first a-type vane group 400 is located at the first upper limit position in the height direction.
The first rotating shaft 21 is rotated, so that the first ejection piece can rotate between the horizontal direction and the vertical direction, and the first A-type guide plate group is driven to move between the first lower limit position and the first upper limit position; in the height direction, when the first A-type guide piece group is located at the first lower limit position, the adjacent first A-type yarn-carrying guide piece and the first B-type yarn-carrying guide piece are at least partially overlapped, and when the first A-type guide piece group is located at the first upper limit position, a distance is reserved between the adjacent first A-type yarn-carrying guide piece and the first B-type yarn-carrying guide piece.
In fig. 3, the first ejector 22 of the first ejector 20 extends in the horizontal direction, so that the first a-type guide plate group 400 is located at the first lower limit position in the height direction. In fig. 4, the first ejector 22 of the first ejector device 20 extends in the vertical direction, and pushes the first a-type guide plate group 400 to move from the first lower limit position to the first upper limit position in the height direction.
In this embodiment, the yarn laying device is further provided with a second ejection device, which is not shown in the drawing, and the second ejection device includes a second rotating shaft rotatably mounted on the frame by using a bearing, and a plurality of second ejection members fixedly mounted on the second rotating shaft.
Each second ejection piece corresponds to one second A-shaped yarn-carrying guide piece, the second A-shaped yarn-carrying guide piece movably abuts against the corresponding second ejection piece, and the second A-shaped guide piece group is provided with a second lower limit position and a second upper limit position in the height direction; the first rotating shaft is rotated, so that the first ejection piece can rotate between the horizontal direction and the vertical direction, and the second A-type guide plate group is driven to move between the second lower limit position and the second upper limit position; in the height direction, when the second A-type guide piece group is located at the second lower limit position, the adjacent second A-type yarn-carrying guide piece and the second B-type yarn-carrying guide piece are at least partially overlapped, and when the second A-type guide piece group is located at the second upper limit position, a distance is reserved between the adjacent second A-type yarn-carrying guide piece and the second B-type yarn-carrying guide piece.
The structure of the second ejection device is substantially the same as that of the first ejection device 20.
The following describes a method of laying yarns in a three-dimensional fabric. The yarn laying method is performed by using the yarn laying device 900 for the three-dimensional fabric.
Referring to fig. 12, four outer sides of the pin matrix 300 are referred to as a first side C1, a second side C2, a third side C3 and a fourth side C4 in sequence, wherein the first side and the third side are disposed opposite to each other, and two ends of the first yarn carrying channel are respectively communicated with the first side and the third side; the second side and the fourth side are arranged oppositely, and two ends of the second yarn carrying channel are communicated with the second side and the fourth side respectively.
Referring to fig. 7-11, the yarn laying method includes the following steps:
(1) referring to fig. 7, the first yarn-carrying guide piece 420 is moved to the first side of the steel needle matrix 300, and then the first fiber 610 passes through the yarn-guiding hole 12 of the first yarn-carrying guide piece and is fixed on the # 1 first front fixing member 631, and the first yarn-carrying guide piece includes the first a-type yarn-carrying guide piece 420 and the first B-type yarn-carrying guide piece 520. In this embodiment, the # 1 first front fixture 631 is a nail, and the # 1 first front fixture 631 is disposed at a first side of the pin matrix 300. The first fiber 610 is pre-wound on the first creel 600.
The second yarn-carrying guide piece is moved to the second side of the steel needle matrix, then the second fiber is fixed on a 1# second front fixing piece after passing through a yarn guide hole of the second yarn-carrying guide piece, and the second yarn-carrying guide piece comprises a second A-type yarn-carrying guide piece and a second B-type yarn-carrying guide piece. The # 1 second front fixing member is also a nail, the second fiber is pre-wound on a second creel, neither the # 1 second front fixing member nor the second creel is shown in the drawings, and the # 1 second front fixing member is substantially the same as the # 1 first front fixing member 631, and the second creel is substantially the same as the first creel.
(2) Referring to fig. 8, the first rotating shaft 21 of the first ejecting device 20 is rotated by the handle 23 to make the first ejecting member 22 be at the first upper limit position, the first a-type guide plate group and the first B-type guide plate group are pushed, the first yarn-carrying guide plate 420 carries the first fiber 610 to move along the first yarn-carrying channel, the yarn-guiding hole 12 of the first yarn-carrying guide plate reaches the outer side of the third side C3 of the steel needle matrix, and the first rotating shaft 21 of the first ejecting device 20 is rotated by the handle 23 to make the first ejecting member 22 be at the first lower limit position, so that the first fiber 610 is hooked on the # 1 first rear fixing member 641.
In this embodiment, the 1# first rear fastener 641 is a yarn F1 fixed at both ends, and the hooking of the first fiber 610 on the 1# first rear fastener 641 specifically includes: yarn F1, which is the # 1 first back fastener 641, is passed through the gap between the first fiber 610 and the steel needle matrix so that the first fiber 610 passes around the # 1 first back fastener 641.
Referring to fig. 9, the first a-type guide plate group and the first B-type guide plate group are moved in a direction away from the third side, so that the first yarn-carrying guide plate exits the first yarn-carrying channel and returns to the first side of the steel needle matrix, and then the yarn E1 passes through the gap between the first fiber and the steel needle matrix, so as to hook the first fiber on the yarn E1, where the yarn E1 is the # 2 first front fastener 632. Then, the first rotating shaft 21 of the first ejection device 20 is rotated by the handle 23, so that the first ejection member 22 is positioned at the first upper limit position, and the movement of the first a-type guide plate group and the first B-type guide plate group is suspended.
The compacting plate 302 is moved downward to compact the first fibers in the first yarn carrying channel downward and then returned upward again.
(3) And rotating a second rotating shaft of the second ejection device through the handle to enable the second ejection piece to be positioned on a second upper limit, pushing a second A-type guide sheet group and a second B-type guide sheet group to enable a second yarn-carrying guide sheet to carry second fibers to move along a second yarn-carrying channel, enabling a yarn-leading hole of the second yarn-carrying guide sheet to reach the outer side of the fourth side of the steel needle matrix, rotating the second rotating shaft of the second ejection device through the handle to enable the second ejection piece to be positioned on a second lower limit, and hooking the second fibers on a No. 1 second rear fixing piece.
Moving the second A-type guide plate group and the second B-type guide plate group towards the direction departing from the fourth side, enabling the second yarn carrying guide plate to exit from the second yarn carrying channel and return to the second side of the steel needle matrix, and then hooking the second fibers on a No. 2 second front fixing piece; and then the handle rotates a second rotating shaft of the second ejection device, so that the second ejection piece is positioned on a second upper limit, and the movement of the second A-type guide piece group and the second B-type guide piece group is suspended.
And pressing the second fibers shuttled in the steel needle matrix downwards.
This step (3) is substantially the same as step (2) except that the direction of movement of the second yarn is different, as can be seen in fig. 8 and 9.
(4) Referring to fig. 10, the first ejection device is kept at the first upper limit position, the first a-type guide plate group and the first B-type guide plate group are pushed again, the first yarn-carrying guide plate 420 carries the first fiber 610 to move along the first yarn-carrying channel, the yarn-guiding hole of the first yarn-carrying guide plate reaches the outer side of the third side of the steel needle matrix, the handle 23 rotates the first rotating shaft 21 of the first ejection device 20, the first ejection member 22 is located at the first lower limit position, and the first fiber is hooked on the # 2 first rear fixing member 642.
In this embodiment, the yarn F2 fixed at both ends of the # 2 first back fixing element 641 hooks the first fiber 610 to the # 2 first back fixing element 642 specifically as follows: yarn F2, which is the # 2 first back fastener 642, is passed through the gap between the first fiber 610 and the steel needle matrix, causing the first fiber 610 to pass around the # 2 first back fastener 642.
Referring to fig. 11, the first a-type guide plate group and the first B-type guide plate group are moved in a direction away from the third side, so that the first yarn-carrying guide plate exits the first yarn-carrying channel and returns to the first side of the steel needle matrix, and then the yarn E2 passes through the gap between the first fiber and the steel needle matrix, so as to hook the first fiber on the yarn E2, where the yarn E2 is the # 3 first front fixing member 633.
Then, the first rotating shaft 21 of the first ejection device 20 is rotated by the handle 23, so that the first ejection member 22 is positioned at the first upper limit position, and the movement of the first a-type guide plate group and the first B-type guide plate group is suspended again.
The compacting plate 302 is again moved downwards, compacting the first fibres in the first yarn carrying channel downwards and then returning the compacting plate upwards.
(5) Keeping the second ejection device at the second upper limit, pushing the second A-type guide plate group and the second B-type guide plate group again to enable the second yarn-carrying guide plate to carry the second fiber to move along the second yarn-carrying channel, enabling the yarn-leading hole of the second yarn-carrying guide plate to reach the outer side of the fourth side of the steel needle matrix, rotating the second rotating shaft of the second ejection device through the handle to enable the second ejection piece to be at the second lower limit, and hooking the second fiber on the No. 2 second rear fixing piece.
Moving the second A-type guide plate group and the second B-type guide plate group towards the direction departing from the fourth side, enabling the second yarn carrying guide plate to exit from the second yarn carrying channel and return, and then hooking the second fibers on a No. 3 second front fixing piece; and then the handle rotates a second rotating shaft of the second ejection device to enable the second ejection piece to be positioned on a second upper limit, and the movement of the second A-type guide piece group and the second B-type guide piece group is suspended again.
And pressing the second fibers shuttled in the steel needle matrix downwards.
Step (5) is substantially the same as step (4), and can be seen in fig. 8 and 9.
(6) And (5) repeating the step (4) and the step (5) until the laying of the first fibers and the second fibers which meet the design requirements is completed.
In this embodiment, the first a-type guide plate group and the first B-type guide plate group move simultaneously when moving; the second A-type guide plate group and the second B-type guide plate group move simultaneously when moving.
Claims (9)
1. The yarn carrying guide sheet is characterized by comprising an elongated guide plate, wherein the middle part of the guide plate is formed into a plate body, two ends of the guide plate in the length direction are respectively formed into a yarn carrying end and a fixed end, and a yarn guiding hole is formed in the yarn carrying end, extends along the width direction of the guide plate and penetrates through two sides of the yarn carrying end in the width direction.
2. A yarn carrying guide sheet according to claim 1, wherein the yarn guiding hole is circular in cross-section and both ends of the yarn guiding hole are rounded.
3. A yarn carrying guide piece according to claim 1 or 2, wherein the end face of the yarn carrying end is arc-shaped as viewed in the width direction of the guide plate.
4. A yarn carrying guide piece according to claim 1 or 2, wherein at least one side of the yarn carrying end in the width direction of the guide plate extends outwards beyond the side of the plate body facing the same side in the width direction of the guide plate.
5. A yarn spreading device for three-dimensional fabric is characterized by comprising a frame, an upper fixing tool plate, a lower fixing tool plate and a steel needle matrix, wherein the upper fixing tool plate and the lower fixing tool plate extend along the horizontal direction and are parallel to each other; the steel needle matrix is composed of a plurality of steel needles which extend along the vertical direction and are arranged in a matrix manner, the upper end of any steel needle in the steel needle matrix is detachably fixed on the upper fixing tool plate, and the lower end of any steel needle in the steel needle matrix is detachably fixed on the lower fixing tool plate;
a plurality of steel needles of the steel needle matrix are arranged into N rows and M rows; a first yarn carrying channel is formed between two adjacent rows of steel needles to form N-1 rows of first yarn carrying channels, and two adjacent first yarn carrying channels are respectively a first A-type yarn carrying channel and a first B-type yarn carrying channel, so that the first A-type yarn carrying channels and the first B-type yarn carrying channels are arranged at intervals;
a second yarn carrying channel is formed between two adjacent rows of steel needles, and M-1 rows of second yarn carrying channels are formed together; two adjacent second yarn carrying channels are respectively a second A-type yarn carrying channel and a second B-type yarn carrying channel, so that the second A-type yarn carrying channel and the second B-type yarn carrying channel are arranged at intervals;
the yarn paving device also comprises a first A-type guide sheet group, a first B-type guide sheet group, a second A-type guide sheet group and a second B-type guide sheet group;
the first A-type guide plate group comprises a first connecting plate I and at least two first A-type yarn-carrying guide plates connected to the first connecting plate I, and the at least two first A-type yarn-carrying guide plates correspond to a first A-type yarn-carrying channel respectively;
the first B-type guide plate group comprises a first connecting plate II and at least two first B-type yarn-carrying guide plates connected to the first connecting plate II, and the at least two first B-type yarn-carrying guide plates respectively correspond to a first B-type yarn-carrying channel;
the first type a yarn-carrying guide piece and the first type B yarn-carrying guide piece are both yarn-carrying guide pieces as claimed in any one of claims 1 to 4;
the lengths of the first A-type yarn-carrying guide piece and the first B-type guide piece extend along the horizontal direction, and the widths of the first A-type yarn-carrying guide piece and the first B-type guide piece extend along the vertical direction;
the first A-type guide piece group and the first B-type guide piece group are movably mounted on the rack, and under the pushing of external force, the first A-type yarn-carrying guide piece can be inserted into the corresponding first A-type yarn-carrying channel, the yarn-guiding hole of the first A-type yarn-carrying guide piece can pass through the steel needle matrix and reach the outer side of the steel needle matrix, the first B-type yarn-carrying guide piece can be inserted into the corresponding first B-type yarn-carrying channel, and the yarn-guiding hole of the first B-type yarn-carrying guide piece can be positioned on the outer side of the steel needle matrix;
the second A-type guide piece group comprises a second connecting plate I and at least two second A-type yarn-carrying guide pieces connected to the second connecting plate I, and the at least two second A-type yarn-carrying guide pieces correspond to a second A-type yarn-carrying channel respectively;
the second B-type guide piece group comprises a second connecting plate II and at least two second B-type yarn-carrying guide pieces connected to the second connecting plate II, and the at least two second B-type yarn-carrying guide pieces correspond to a second B-type yarn-carrying channel respectively;
both the second type a yarn-carrying guide sheet and the second type B yarn-carrying guide sheet are yarn-carrying guide sheets according to any one of claims 1 to 4;
the lengths of the second A-type yarn-carrying guide sheet and the second B-type guide sheet extend along the horizontal direction, and the widths of the second A-type yarn-carrying guide sheet and the second B-type guide sheet extend along the vertical direction;
the second A-type guide piece group and the second B-type guide piece group are movably mounted on the rack, under the pushing of external force, the second A-type yarn-carrying guide piece can be inserted into the corresponding second A-type yarn-carrying channel, yarn-guiding holes of the second A-type yarn-carrying guide piece pass through the steel needle matrix and reach the outer side of the steel needle matrix, the second B-type yarn-carrying guide piece is inserted into the corresponding second B-type yarn-carrying channel, and the yarn-guiding holes of the second B-type yarn-carrying guide piece are located on the outer side of the steel needle matrix.
6. A yarn laying device as claimed in claim 5,
the yarn laying device is also provided with a first ejection device, and the first ejection device comprises a first rotating shaft which is rotatably arranged on the frame and a plurality of first ejection pieces which are fixedly arranged on the first rotating shaft;
each first ejection piece corresponds to one first A-shaped yarn-carrying guide piece, the first A-shaped yarn-carrying guide piece movably abuts against the corresponding first ejection piece, and the first A-shaped guide piece group is provided with a first lower limit position and a first upper limit position in the height direction; the first rotating shaft is rotated, so that the first ejection piece can rotate between the horizontal direction and the vertical direction, and the first A-type guide plate group is driven to move between a first lower limit position and a first upper limit position; in the height direction, when the first A-type guide piece group is located at the first lower limit position, the adjacent first A-type yarn-carrying guide piece and the first B-type yarn-carrying guide piece are at least partially overlapped, and when the first A-type guide piece group is located at the first upper limit position, a distance is reserved between the adjacent first A-type yarn-carrying guide piece and the first B-type yarn-carrying guide piece.
7. A yarn laying device as claimed in claim 6,
the yarn laying device is also provided with a second ejection device, and the second ejection device comprises a second rotating shaft which is rotatably arranged on the frame and a plurality of second ejection pieces which are fixedly arranged on the second rotating shaft;
each second ejection piece corresponds to one second A-shaped yarn-carrying guide piece, the second A-shaped yarn-carrying guide piece movably abuts against the corresponding second ejection piece, and the second A-shaped guide piece group is provided with a second lower limit position and a second upper limit position in the height direction; the first rotating shaft is rotated, so that the first ejection piece can rotate between the horizontal direction and the vertical direction, and the second A-type guide plate group is driven to move between the second lower limit position and the second upper limit position; in the height direction, when the second A-type guide piece group is located at the second lower limit position, the adjacent second A-type yarn-carrying guide piece and the second B-type yarn-carrying guide piece are at least partially overlapped, and when the second A-type guide piece group is located at the second upper limit position, a distance is reserved between the adjacent second A-type yarn-carrying guide piece and the second B-type yarn-carrying guide piece.
8. A yarn laying method of a three-dimensional fabric is characterized in that a yarn laying device of the three-dimensional fabric according to any one of claims 5 to 7 is adopted;
the four outer sides of the steel needle matrix are sequentially provided with a first side, a second side, a third side and a fourth side, wherein the first side and the third side are oppositely arranged, and two ends of the first yarn carrying channel are respectively communicated with the first side and the third side; the second side and the fourth side are arranged oppositely, and two ends of the second yarn carrying channel are communicated with the second side and the fourth side respectively.
The yarn laying method comprises the following steps:
(1) moving a first yarn-carrying guide sheet to a first side of a steel needle matrix, and then fixing a first fiber on a No. 1 first front fixing piece after passing through a yarn guide hole of the first yarn-carrying guide sheet, wherein the first yarn-carrying guide sheet comprises a first A-type yarn-carrying guide sheet and a first B-type yarn-carrying guide sheet;
moving a second yarn-carrying guide sheet to the second side of the steel needle matrix, and then fixing a second fiber on a No. 1 second front fixing piece after passing through a yarn guide hole of the second yarn-carrying guide sheet, wherein the second yarn-carrying guide sheet comprises a second A-type yarn-carrying guide sheet and a second B-type yarn-carrying guide sheet;
(2) rotating the first rotating shaft, pushing the first ejection device to be positioned at a first upper limit position, then pushing the first A-type guide plate group and the first B-type guide plate group, enabling the first yarn-carrying guide plate to carry first fibers to move along the first yarn-carrying channel, enabling a yarn-leading hole of the first yarn-carrying guide plate to reach the outer side of the third side of the steel needle matrix, then rotating the first rotating shaft, enabling the first ejection device to be positioned at a first lower limit position, and hooking the first fibers on a # 1 first rear fixing piece;
moving the first A-type guide plate group and the first B-type guide plate group towards the direction departing from the third side to enable the first yarn-carrying guide plate to exit from the first yarn-carrying channel, and then hooking the first fiber on the No. 2 first front fixing piece; pausing the movement of the first A-type guide plate group and the first B-type guide plate group, rotating the first rotating shaft, and pushing the first ejection device to be positioned at a first upper limit position;
pressing down the first fibers shuttled in the steel needle matrix;
(3) rotating the second rotating shaft, pushing the second ejection device to be located at a second upper limit position, then pushing the second A-type guide plate group and the second B-type guide plate group, enabling the second yarn-carrying guide plate to carry second fibers to move along the second yarn-carrying channel, enabling a yarn-leading hole of the second yarn-carrying guide plate to reach the outer side of the fourth side of the steel needle matrix, then rotating the second rotating shaft, enabling the second ejection device to be located at a second lower limit position, and hooking the second fibers on a # 1 second rear fixing piece;
moving the second A-type guide plate group and the second B-type guide plate group towards the direction departing from the fourth side to enable the second yarn carrying guide plate to exit from the second yarn carrying channel, and then hooking the second fibers on the No. 2 second front fixing piece; the second A-type guide plate group and the second B-type guide plate group are paused to move, and then the second rotating shaft is rotated to push the second ejection device to be positioned at a second upper limit position;
pressing the second fibers shuttled in the steel needle matrix downwards;
(4) keeping the first ejection device at a first upper limit position, pushing the first A-type guide plate group and the first B-type guide plate group to enable the first yarn-carrying guide plate to carry first fibers to move along the first yarn-carrying channel, enabling a yarn-leading hole of the first yarn-carrying guide plate to reach the outer side of a third side of the steel needle matrix, rotating the first rotating shaft to enable the first ejection device at a first lower limit position, and hooking the first fibers on a No. 2 first rear fixing piece;
moving the first A-type guide plate group and the first B-type guide plate group towards the direction departing from the third side to enable the first yarn-carrying guide plate to exit from the first yarn-carrying channel, and then hooking the first fiber on the No. 2 first front fixing piece; the first A-type guide plate group and the first B-type guide plate group are paused again, and then the first rotating shaft is rotated to push the first ejection device to be positioned at the first upper limit position;
pressing down the first fibers shuttled in the steel needle matrix;
(5) keeping the second ejection device at a second upper limit position, pushing the second A-type guide plate group and the second B-type guide plate group to enable the second yarn-carrying guide plate to carry second fibers to move along the second yarn-carrying channel, enabling a yarn-leading hole of the second yarn-carrying guide plate to reach the outer side of the fourth side of the steel needle matrix, rotating the second rotating shaft to enable the second ejection device at a second lower limit position, and hooking the second fibers on a # 1 second rear fixing piece;
moving the second A-type guide plate group and the second B-type guide plate group towards the direction departing from the fourth side to enable the second yarn carrying guide plate to exit from the second yarn carrying channel, and then hooking the second fibers on the No. 1 second front fixing piece; the second A-type guide plate group and the second B-type guide plate group are paused again, and then the second rotating shaft is rotated, so that the second ejection device is positioned at a second upper limit position;
pressing the second fibers shuttled in the steel needle matrix downwards;
(6) and (5) repeating the step (4) and the step (5) until the laying of the first fibers and the second fibers is completed.
9. A yarn laying method according to claim 8,
the first A-type guide plate group and the first B-type guide plate group move simultaneously when moving;
the second A-type guide plate group and the second B-type guide plate group move simultaneously when moving.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911343578.6A CN111101262B (en) | 2019-12-24 | 2019-12-24 | Yarn-carrying guide sheet, yarn-spreading device of three-dimensional fabric and yarn-spreading mode |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911343578.6A CN111101262B (en) | 2019-12-24 | 2019-12-24 | Yarn-carrying guide sheet, yarn-spreading device of three-dimensional fabric and yarn-spreading mode |
Publications (2)
| Publication Number | Publication Date |
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| CN111101262A true CN111101262A (en) | 2020-05-05 |
| CN111101262B CN111101262B (en) | 2021-05-28 |
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| CN201911343578.6A Active CN111101262B (en) | 2019-12-24 | 2019-12-24 | Yarn-carrying guide sheet, yarn-spreading device of three-dimensional fabric and yarn-spreading mode |
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| CN (1) | CN111101262B (en) |
Citations (6)
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| CN106400271A (en) * | 2016-09-12 | 2017-02-15 | 中材科技股份有限公司 | Three-way oblique crossing fabric and weaving device and method thereof |
| DE102015012516A1 (en) * | 2015-09-25 | 2017-03-30 | Audi Ag | Method for producing a component |
| CN207435673U (en) * | 2017-11-15 | 2018-06-01 | 天津工业大学 | A kind of stereo fabric of draw point containing Z-direction draw point displacement and fiber locker |
| CN109505058A (en) * | 2018-11-30 | 2019-03-22 | 苏州通锦精密工业股份有限公司 | A kind of automatical and efficient braiding apparatus of carbon fiber and weaving method |
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| CN1182813A (en) * | 1996-10-28 | 1998-05-27 | 王光华 | Three dimension stereo fabric for composite material and weaving method |
| CN103290534A (en) * | 2013-06-07 | 2013-09-11 | 天津工业大学 | Array arranging device for integrated piercing steel needles |
| DE102015012516A1 (en) * | 2015-09-25 | 2017-03-30 | Audi Ag | Method for producing a component |
| CN106400271A (en) * | 2016-09-12 | 2017-02-15 | 中材科技股份有限公司 | Three-way oblique crossing fabric and weaving device and method thereof |
| CN207435673U (en) * | 2017-11-15 | 2018-06-01 | 天津工业大学 | A kind of stereo fabric of draw point containing Z-direction draw point displacement and fiber locker |
| CN109505058A (en) * | 2018-11-30 | 2019-03-22 | 苏州通锦精密工业股份有限公司 | A kind of automatical and efficient braiding apparatus of carbon fiber and weaving method |
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| CN111101262B (en) | 2021-05-28 |
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