CN112458619B - Warp knitting machine tension compensation device and tension control system - Google Patents
Warp knitting machine tension compensation device and tension control system Download PDFInfo
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- CN112458619B CN112458619B CN202011215084.2A CN202011215084A CN112458619B CN 112458619 B CN112458619 B CN 112458619B CN 202011215084 A CN202011215084 A CN 202011215084A CN 112458619 B CN112458619 B CN 112458619B
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04B—KNITTING
- D04B27/00—Details of, or auxiliary devices incorporated in, warp knitting machines, restricted to machines of this kind
- D04B27/10—Devices for supplying, feeding, or guiding threads to needles
- D04B27/12—Tensioning devices for individual threads
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Abstract
The invention discloses a tension compensation device and a tension control system of a warp knitting machine, wherein the tension compensation device of the warp knitting machine comprises a yarn guide piece, a low limiting piece, a high limiting piece, a swinging rod and a fixed porcelain eye; the yarn guide piece, the low limiting piece, the high limiting piece and the fixed porcelain eye are sequentially and fixedly arranged, and the low limiting piece is lower than the high limiting piece; the swinging rod is provided with a movable porcelain eye, and the yarn is wound on the yarn guide piece and sequentially passes through the movable porcelain eye and the fixed porcelain eye; the swing rod is hinged, and the rotating shaft of the swing rod is horizontal; the swing rod penetrates between the low position limiting piece and the high position limiting piece, the swing rod is pulled to turn upwards by the yarn when the yarn is tightened until the swing rod abuts against the high position limiting piece, and the swing rod is turned downwards by the gravity of the swing rod when the yarn is loosened to straighten the yarn until the swing rod abuts against the low position limiting piece. The tension control system comprises a warp knitting machine tension compensation device and a tensioner, or comprises at least two warp knitting machine tension compensation devices. The invention has the advantages of capability of making up the defects of the tensioner, high reaction speed and large tension adjusting range.
Description
Technical Field
The invention relates to the field of warp knitting machines, in particular to a tension compensation device and a tension control system of a warp knitting machine.
Background
In order to meet the requirements of the expansion and innovation of a warp knitting process, the existing warp knitting equipment has the function that each yarn can independently control the let-off amount, specifically, a warp knitting machine is matched with a creel shown in fig. 1 to work cooperatively, one yarn on the warp knitting machine has the function of independent yarn feeding, the creel yarn feeding is essentially a negative yarn feeding mode, and the yarn on a yarn tube passes through a tensioner shown in fig. 2 after falling off, then passes through a yarn collecting plate and finally reaches the position of a main machine of the warp knitting machine to participate in the knitting process. The tensioner adjusts the yarn tension by means of the mutual matching of the counterweight and the guide roller, the adjustment principle is that the gravity of the counterweight, the friction force of the counterweight and the friction force of the guide roller apply force to the yarn together, when the warp feeding amount demand is uniform, the tensioner can normally work as shown in figure 3, and the cloth surface texture woven by the warp knitting machine is uniform and is shown in figure 4.
As shown in fig. 5, when the warp let-off demand of the yarn suddenly changes from small to large, the yarn tension suddenly becomes tight, all the counterweight weights are completely separated from the bottom support instantaneously or in a short time, the yarn is in a tight state instantaneously, the yarn is quickly conducted to the knitting needle to find out the tension after the tension becomes tight, the cloth cover coil is shrunk due to the yarn becoming tight, and the cloth cover effect as shown in fig. 6, namely a flaw, is generated. Later yarn tension conducts spindle 4 through the tensioner very fast, and the yarn of spindle 4 will drop immediately, and the regional yarn tension of tensioner will be at once by tight becoming loose, and the counter weight also will take place the height position fluctuation and change, and some or whole weights will fall to the collet, and when the weight dropped to the collet, yarn tension was adjusted and has only been acted on by the weight and the frictional force of leading the rod.
As shown in figure 7, when the let-off quantity demand of the yarn is suddenly reduced, the yarn tension in the tensioner area is loosened immediately, the weight drops on the bottom support, and the whole yarn tension loses any adjustment and becomes loosened due to the fact that the yarn of the source bobbin does not retract, so that the cloth cover coil is enlarged, and the defects such as the outward throwing of the cloth cover coil are formed.
No matter how the yarn tension changes, the gravity action taking piece of the weight is completely determined by the diameter of the guide rod, the friction action interval is determined by the number of the weight and the guide rod, the response speed of the tensioner is slow, and the adjusting range is extremely small. Although the creel meets the requirement of differentiation of the let-off amount of each yarn of the warp knitting machine, the tension of each yarn in the knitting process cannot be well controlled and guaranteed by the tensioner, the tension of the yarn is uneven, and the yarn is tight and loose in time, so that the phenomena that the cloth cover produced by the warp knitting machine has broken yarns, the mesh size is uneven, the size of a single-needle coil is uneven, the color of a multi-color yarn is vertical when the multi-color yarn is knitted, the mesh size and the coil size are uneven, and the vertical lines of the cloth cover can be caused are caused, the product quality is greatly reduced, and the warp knitting machine is a technical problem in the whole warp knitting industry.
Disclosure of Invention
Therefore, a tension compensation device and a tension control system of the warp knitting machine are needed to be provided to solve the problems that in the prior art, a tensioner is slow in response speed, the tension adjusting range is extremely small, and the tension of yarns cannot be guaranteed when the warp feeding amount changes suddenly.
In order to achieve the aim, the inventor provides a tension compensation device of a warp knitting machine, which comprises a yarn guide piece, a low-position limiting piece, a high-position limiting piece, a swinging rod and a fixed porcelain eye;
the yarn guide piece, the low limiting piece, the high limiting piece and the fixed porcelain eye are sequentially and fixedly arranged, and the low limiting piece is lower than the high limiting piece; the swinging rod is provided with a movable porcelain eye, and the yarn is wound on the yarn guide piece and sequentially passes through the movable porcelain eye and the fixed porcelain eye; the swing rod is hinged, and a rotating shaft of the swing rod is horizontally arranged; the swing rod penetrates between the low position limiting piece and the high position limiting piece, and the swing rod turns upwards under the action of pulling of the yarns when the yarns are tightened until the swing rod abuts against the high position limiting piece, and turns downwards under the action of self gravity when the yarns are loosened to straighten the yarns until the swing rod abuts against the low position limiting piece.
The yarn guide device is characterized by also comprising a yarn passing plate and two fixing plates, wherein the two fixing plates are oppositely arranged and are connected to the same surface of the yarn passing plate together; the fixed porcelain eye is embedded in the surface of the yarn passing plate and penetrates through the yarn plate; the yarn guide piece, the low limiting piece, the high limiting piece and the swinging rod are arranged between the two fixing plates.
As a preferred structure of the invention, a rotating shaft is arranged between the two fixing plates, and the axial direction of the rotating shaft is horizontally arranged; the swinging rod can be rotationally arranged at the rotating shaft in series along the circumferential direction of the rotating shaft.
As a preferable structure of the invention, when the swinging rod is turned to abut against the height limiting piece, the movable porcelain eye is lower than the yarn guide piece and the fixed porcelain eye.
As a preferable structure of the present invention, the yarn guide, the lower limit member, and the upper limit member are rod-shaped, and the yarn guide, the lower limit member, and the upper limit member are arranged in parallel.
As a preferable structure of the invention, at least two oscillating rods are arranged, and the number of the fixed porcelain eyes is consistent with that of the oscillating rods; each swinging piece is arranged in sequence along the direction parallel to the axial direction of the yarn guide piece, each fixed porcelain eye is arranged in sequence along the direction parallel to the axial direction of the yarn guide piece, and each swinging piece is matched with each fixed porcelain eye one by one.
Different from the prior art, the swing rod of the tension compensation device of the warp knitting machine in the technical scheme is hinged, and when the yarn is tightened, if the warp feeding quantity demand suddenly changes from small to big, the swing rod turns upwards under the action of pulling the yarn so as to ensure that the tension of the yarn is not changed; when the yarn is loose, if the requirement of the warp feeding amount is suddenly changed from large to small, the swinging rod turns downwards under the action of the gravity of the swinging rod so as to straighten the yarn until the tension of the yarn is unchanged. In addition, the tension compensation device of the warp knitting machine only depends on the swinging of the swinging rod under the action of the gravity of the swinging rod to adjust the tension of the yarns, so that the response speed is high no matter whether the instantaneous warp feeding quantity demand is suddenly changed from small to large or from large to small.
The inventor also provides a tension control system, which comprises a warp knitting machine tension compensation device and a tensioner, wherein the warp knitting machine tension compensation device is any one of the warp knitting machine tension compensation devices; the tensioner and the warp knitting machine tension compensation device are sequentially arranged along the yarn feeding direction, and the yarn sequentially passes through the tensioner and the warp knitting machine tension compensation device.
As a preferable structure of the invention, the warp knitting machine tension compensation device is provided with a plurality of tension compensation devices; the tensioner and the warp knitting machine tension compensation devices are sequentially arranged along the yarn feeding direction, and yarns sequentially penetrate through the tensioner and the warp knitting machine tension compensation devices.
Different from the prior art, the tension control system in the technical scheme comprises the tensioner and the warp knitting machine tension compensation device which are sequentially arranged along the yarn feeding direction, wherein the tensioner completes the main work of adjusting the tension of the yarn, the warp knitting machine tension compensation device supplements the yarn tension adjusting work of the tensioner, and the tensioner and the warp knitting machine tension compensation device are matched to enlarge the tension adjusting range of the whole tension control system and can respond to the tension which needs to be adjusted when the let-off quantity is suddenly and greatly changed; in addition, the tension compensation device of the warp knitting machine only depends on the swinging of the swinging rod under the action of the gravity of the swinging rod to adjust the tension of the yarns, so that the reaction speed is very high no matter the instantaneous warp feeding quantity demand is suddenly changed from small to large or from large to small, the tension control system is matched with the tensioner to timely adjust the tension of the yarns, the tension of the yarns is kept unchanged during the knitting of the warp knitting machine, and the knitting quality is stable.
The inventor also provides a tension control system, which comprises at least two warp knitting machine tension compensation devices, wherein the warp knitting machine tension compensation device is any one of the warp knitting machine tension compensation devices; the tension compensation devices of the warp knitting machines are sequentially arranged along the yarn feeding direction, and yarns sequentially pass through the tension compensation devices of the warp knitting machines.
Different from the prior art, the tension control system in the technical scheme comprises the warp knitting machine tension compensation devices which are sequentially arranged along the yarn feeding direction, the warp knitting machine tension compensation devices adjust the yarn tension together, and the warp knitting machine tension compensation devices are matched to enlarge the tension adjusting range of the whole tension control system, so that the tension control system can respond to the tension which needs to be adjusted when the let-off quantity is suddenly and greatly changed; in addition, the tension compensation device of the warp knitting machine only depends on the swinging of the swinging rod under the action of the gravity of the swinging rod to adjust the tension of the yarns, so that the reaction speed is high no matter whether the instantaneous warp feeding quantity demand is suddenly changed from small to large or from large to small, the tension of the yarns is timely adjusted by the whole tension control system, the tension of the yarns is kept unchanged when the warp knitting machine is used for knitting, and the knitting quality is stable.
Drawings
FIG. 1 is a block diagram of a creel according to the background of the invention;
FIG. 2 is a structural view of a tensioner according to the background of the present invention;
FIG. 3 is a state diagram of the tensioner in an intermediate state according to the background of the invention;
FIG. 4 is a diagram of a normal cloth cover according to the background art of the present invention;
FIG. 5 is a state view of the tensioner when the yarn is tightened according to the background art of the present invention;
FIG. 6 is a structural diagram of an abnormal cloth cover according to the background art of the present invention;
FIG. 7 is a state diagram of the tensioner as it relaxes in accordance with the background of the invention;
fig. 8 is a first structural view of a tension compensating device of a warp knitting machine according to an embodiment of the present invention;
fig. 9 is a side perspective view of a warp knitting machine tension compensating device according to an embodiment of the present invention;
FIG. 10 is a second configuration view of a tension compensating device of the warp knitting machine according to the embodiment of the present invention;
FIG. 11 is a block diagram of a sway bar in accordance with an embodiment of the present invention;
FIG. 12 is a first diagram illustrating a first state of use of a tension control system according to an embodiment of the present invention;
FIG. 13 is a second state diagram of the tension control system according to an embodiment of the present invention;
fig. 14 is a diagram illustrating a state of use of a tension control system according to another embodiment of the present invention.
Description of reference numerals:
1. a warp knitting machine tension compensation device;
10. a yarn guide; 11. a lower limiting member; 12. a height limiting member; 13. a swing lever; 130. a first stage; 131. a second stage; 14. fixing the porcelain eye; 15. a movable porcelain eye; 16. a yarn passing plate; 17. a fixing plate; 18. a rotating shaft; 19. a limiting ring;
2. a tensioner;
20. a guide stick; 21. counterweight weights; 22. a bottom support; 23. front fixing porcelain eye; 24. then fixing the porcelain eye;
3. a yarn;
4. a spindle;
5. a warp knitting machine;
6. a creel.
Detailed Description
In order to explain technical contents, structural features, objects and effects of the technical solutions in detail, the following detailed description is given with reference to the accompanying drawings in combination with the embodiments.
The invention provides a tension compensation device 1 of a warp knitting machine, which is used for performing tension compensation on equipment for regulating 3 tensions of yarns, particularly the problem that the regulation range of the equipment for regulating 3 tensions of other yarns is small due to the large regulation range of the 3 tensions of the yarns, and the tension of the yarns 3 to be regulated when the requirement of let-off amount is suddenly changed greatly can be solved, in addition, the response speed is high, the tension of the yarns 3 can be timely regulated when the requirement of the let-off amount is suddenly changed, the knitting operation is ensured, the tension of the yarns 3 is kept stable, and the cloth cover yield is improved.
Referring to fig. 8 and 9, in an embodiment, the warp knitting machine tension compensation device 1 includes a yarn guide 10, a low limiting member 11, a high limiting member 12, a swing rod 13 and a fixing porcelain eye 14; the yarn guide piece 10 is an initial entering position of the yarn 3 penetrating into the tension compensation device 1 of the warp knitting machine, the fixed porcelain eye 14 is a final leaving position of the yarn 3 penetrating out of the tension compensation device 1 of the warp knitting machine, and the yarn guide piece 10 and the fixed porcelain eye 14 are used for guiding and limiting the position of the yarn 3. The lower limiting piece 11 is used for limiting the lowest position of the swinging rod 13 which is turned downwards and preventing the swinging rod 13 from turning upwards along the original path after turning downwards; the height limiting piece 12 is used for limiting the highest position of the upward turning of the swing rod 13 and preventing the swing rod 13 from turning downward along the original path after turning upward, and under the combined action of the height limiting piece 12 and the low limiting piece 11, the swing rod 13 only makes an effective turning movement of an angle and cannot make a rotating movement of 360 degrees. The oscillating lever 13 is provided with a certain weight for applying an external force to the yarn 3 to adjust the tension of the yarn 3 according to the actual stress condition of the yarn 3.
The yarn guide piece 10, the low limit piece 11, the high limit piece 12 and the fixed porcelain eye 14 are sequentially and fixedly arranged, the low limit piece 11 is lower than the high limit piece 12, in a further embodiment, the warp knitting machine tension compensation device 1 further comprises a yarn passing plate 16 and a fixed plate 17, the fixed plate 17 is vertically arranged at one plate surface of the yarn passing plate 16, the yarn guide piece 10, the low limit piece 11 and the high limit piece 12 are all arranged at the same surface of the fixed plate 17, and the fixed porcelain eye 14 is embedded at the plate surface of the yarn passing plate 16 and penetrates through the yarn passing plate 16. In this case, the yarn guide 10, the lower limit member 11, and the upper limit member 12 may be block-shaped, the yarn guide 10, the lower limit member 11, and the upper limit member 12 may be rod-shaped, and preferably, a cylindrical rod is used, and the yarn guide 10, the lower limit member 11, and the upper limit member 12 are arranged in parallel.
In order to ensure stability, in a further embodiment, the fixing plates 17 may be provided with two fixing plates 17, the two fixing plates 17 are oppositely arranged, and the two fixing plates 17 are connected to the same surface of the yarn passing plate 16 together; the yarn guiding member 10, the low limiting member 11 and the high limiting member 12 are all disposed between two fixing plates 17, at this time, the yarn guiding member 10, the low limiting member 11 and the high limiting member 12 are preferably in the shape of a cylindrical rod, one end of the yarn guiding member 10 is connected to one fixing plate 17, the other end of the yarn guiding member 10 is connected to the other fixing plate 17, similarly, one end of the low limiting member 11 is connected to one fixing plate 17, the other end of the low limiting member 11 is connected to the other fixing plate 17, one end of the high limiting member 12 is connected to one fixing plate 17, and the other end of the high limiting member 12 is connected to the other fixing plate 17. The fixing porcelain eye 14 is embedded at the surface of the yarn passing plate 16 and positioned between the two fixing plates 17 and arranged through the yarn plate 16.
The swing rod 13 is provided with a movable porcelain eye 15, specifically, the movable porcelain eye 15 is arranged at the end of the swing part, the yarn 3 coming out from the creel 6 winds the yarn guide part 10, specifically, walks on the yarn guide part 10, hangs on the yarn guide part 10, then sequentially passes through the movable porcelain eye 15 and the fixed porcelain eye 14, and the swing rod 13 moves to drive the movable porcelain eye 15 to move, so that the tension of the yarn 3 can be adjusted.
The swing rod 13 is hinged, and the rotating shaft 18 of the swing rod 13 is horizontally arranged, that is, the swing rod 13 can be turned over up and down, when the warp knitting machine tension compensation device 1 is provided with the yarn passing plate 16 and the fixing plates 17, the swing rod 13 can be hinged at the yarn passing plate 16 or at the fixing plates 17, when the fixing plates 17 are provided with two, the two fixing plates 17 are oppositely arranged, and the two fixing plates 17 are connected to the same surface of the yarn passing plate 16 together, in a preferred embodiment, a rotating shaft 18 is arranged between the two fixing plates 17, the rotating shaft 18 is in a round rod shape, and the axial direction of the rotating shaft 18 is horizontally arranged; the swing rod 13 can be serially connected to the rotating shaft 18 in a rotating manner along the circumferential direction of the rotating shaft 18, a movable porcelain eye 15 can be arranged at one end of the swing rod 13, a circular hole is formed in the other end of the swing rod 13, the swing rod 13 is serially connected to the rotating shaft 18 through the circular hole, and the swing rod 13 can freely rotate along the circumferential direction of the rotating shaft 18.
The swing rod 13 penetrates between the low position limiting piece 11 and the high position limiting piece 12, and the swing rod 13 turns upwards under the pulling action of the yarn 3 when the yarn 3 is tightened until the swing rod abuts against the high position limiting piece 12, and turns downwards under the action of self gravity when the yarn 3 is loosened to straighten the yarn 3 until the swing rod abuts against the low position limiting piece 11.
In the yarn feeding process, when the yarn 3 is tightened, if the warp feeding amount demand suddenly changes from small to large, the swinging rod 13 turns upwards under the pulling action of the yarn 3 to ensure that the tension of the yarn 3 is unchanged; when the yarn 3 is slack, if the warp feeding amount demand suddenly changes from large to small, the swinging rod 13 turns downwards under the action of its own gravity to straighten the yarn 3 until the tension of the yarn 3 is unchanged. In addition, the yarn 3 only contacts with the yarn guide 10, the fixed porcelain eye 14 and the movable porcelain eye 15, the friction force is small, the tension of the yarn 3 is adjusted by the tension compensation device 1 of the warp knitting machine only through the swinging of the swinging rod 13 under the action of the gravity of the swinging rod, and therefore the response speed is high no matter the instant warp feeding demand is suddenly changed from small to large or from large to small.
Referring to fig. 11, the swing lever 13 may be configured as a straight lever, in another embodiment, the swing lever 13 includes a first segment 130 and a second segment 131, the first segment 130 and the second segment 131 are connected to form an L-shape, and the L-shaped swing lever 13 may be integrally formed. The second section 131 is hinged between the height-limiting piece 12 and the yarn passing plate 16, when the rotating shaft 18 is arranged, the rotating shaft 18 is arranged between the height-limiting piece 12 and the yarn passing plate 16, the round hole is formed in the second section 131, and the second section 131 is serially arranged at the rotating shaft 18 through the round hole. The first section 130 penetrates between the lower limit piece 11 and the upper limit piece 12, and the movable porcelain eye 15 is arranged at the first section 130.
In order to ensure that the yarn 3 can be hung on the yarn guide 10 in any state of the oscillating member, i.e. to ensure that the yarn 3 does not move at all, in a further embodiment, the height of the yarn guide 10 should be higher than the height of the movable eyelet 15 when the oscillating rod 13 is turned to abut against the height-limiting member 12, and the arrangement is such that the yarn 3 can also be kept in contact with the yarn guide 10 at the same position when the oscillating rod 13 is turned to abut against the height-limiting member 12. Likewise, the height of the fixed porcelain eye 14 should be higher than the height of the movable porcelain eye 15 when the swing rod 13 is turned to abut against the height-limiting piece 12.
The yarn 3 required for weaving is generally multiple at the same time, when only one movable porcelain eye 15 and only one fixed porcelain eye 14 of the warp knitting machine tension compensation device 1 are provided, the single warp knitting machine tension compensation device 1 only adjusts the tension of a single yarn 3, and in order that the single warp knitting machine tension compensation device 1 can respectively adjust the tensions of multiple yarns 3, please refer to fig. 10, in a further embodiment, the yarn guide 10, the low limiting piece 11 and the high limiting piece 12 are rod-shaped, and the yarn guide 10, the low limiting piece 11 and the high limiting piece 12 are arranged in parallel. The number of the swing rods 13 is at least two, and the number of the fixed porcelain eyes 14 is consistent with that of the swing rods 13; all the swinging pieces are sequentially arranged along the direction parallel to the axial direction of the yarn guide piece 10, all the swinging pieces penetrate through the low limiting piece 11 and the high limiting piece 12 and are limited by the low limiting piece 11 and the high limiting piece 12, and all the swinging pieces are independent; the fixed porcelain eyes 14 are arranged in sequence along a direction parallel to the axial direction of the yarn guide 10, and the swinging members are matched with the fixed porcelain eyes 14 one by one.
When the swinging pieces are provided with at least two swinging pieces, each swinging piece is arranged at the position of the rotating shaft 18 in series, in order to ensure that the adjacent swinging pieces are independent from each other and do not influence each other, the rotating shaft 18 is provided with the limiting ring 19 in series, the limiting ring 19 has certain length in the axial direction, and the limiting ring 19 is arranged between the two adjacent swinging pieces, so that the distance between the two adjacent swinging pieces is fixed and unchanged no matter how the swinging pieces overturn.
Referring to fig. 12 and 13, the present invention further provides a tension control system, including a warp knitting machine tension compensation device 1 and a tensioner 2, wherein the warp knitting machine tension compensation device 1 is any one of the warp knitting machine tension compensation devices 1; the tension device 2 and the warp knitting machine tension compensation device 1 are sequentially arranged along the yarn feeding direction, and the yarn 3 sequentially passes through the tension device 2 and the warp knitting machine tension compensation device 1.
The tensioner 2 can be the tensioner 2 in the background technology, and the tensioner 2 comprises a front fixing porcelain eye 23, a rear fixing porcelain eye 24 and at least two guide rods 20; the front fixing porcelain eye 23 and the rear fixing porcelain eye 24 are relatively fixedly arranged, each guide rod 20 is horizontally arranged, and each guide rod 20 is fixedly arranged from the front fixing porcelain eye 23 to the rear fixing porcelain eye 24; a counterweight sleeve ring (namely the counterweight 21) is arranged between the adjacent guide rods 20; a bottom support 22 is arranged below the counterweight sleeve ring, and the bottom support 22 and the guide stick 20 have a certain distance in the vertical direction, which is the gravity action range of the counterweight sleeve ring of the tensioner 2. In the actual use in-process, yarn 3 passes preceding fixed porcelain eye 23, counter weight lantern ring, back fixed porcelain eye 24 in proper order, and when the counter weight lantern ring fell to being less than guide rod 20, yarn 3 not only contacted preceding fixed porcelain eye 23, back fixed porcelain eye 24, still contacted with each guide rod 20, and the frictional force that yarn 3 received increases.
In the tension control system, the tensioner 2 finishes the main work of adjusting the tension of the yarn 3, the tension compensation device 1 of the warp knitting machine supplements the tension adjustment work of the yarn 3 of the tensioner 2, and the tension compensation device are matched to enlarge the tension adjustment range of the whole tension control system, so that the tension control system can deal with the tension to be adjusted when the let-off quantity is suddenly changed greatly; in addition, the tension compensation device 1 of the warp knitting machine only depends on the swing of the swing rod 13 under the action of self gravity to adjust the tension of the yarns 3, so that the reaction speed is high no matter the instantaneous warp feeding quantity demand is suddenly changed from small to large or from large to small, the reaction speed is matched with the tensioner 2, the tension of the yarns 3 is timely adjusted by the whole tension control system, the tension of the yarns 3 is kept unchanged when the warp knitting machine 5 performs knitting, and the knitting quality is stable.
When the tension compensation device 1 of the warp knitting machine is only provided with a single swing rod 13, a single movable porcelain eye 15 and a single fixed porcelain eye, the tension compensation device 1 of the warp knitting machine only works on a single yarn 3, if the yarn 3 passing through the tensioner 2 is only one, only one tension compensation device 1 of the warp knitting machine needs to be arranged behind the tensioner 2, if the yarn 3 passing through the tensioner 2 is multiple, a plurality of tension compensation devices 1 of the warp knitting machine need to be arranged behind the tensioner 2, and each tension compensation device 1 of the warp knitting machine is used for the single yarn 3 to pass through.
When the tension compensation device 1 of the warp knitting machine is provided with at least two swing rods 13, the number of the movable porcelain eyes 15 and the number of the fixed porcelain eyes are the same as the number of the swing rods 13, the single tension compensation device 1 of the warp knitting machine can work on at least two yarns 3, at the moment, at least two yarns 3 passing through the tensioner 2 need to be arranged, only one tension compensation device 1 of the warp knitting machine needs to be arranged behind the tensioner 2, and the tension compensation device 1 of the warp knitting machine is simultaneously used for at least two yarns 3 to pass through.
No matter the structure of the warp knitting machine tension compensation device 1 can only act on a single yarn 3 or can act on a plurality of yarns 3 simultaneously, in a further embodiment, the warp knitting machine tension compensation device 1 is provided with a plurality of yarn tension compensation devices; the tensioner 2 and the warp knitting machine tension compensation devices 1 are sequentially arranged along the yarn feeding direction, the yarn 3 sequentially penetrates through the tensioner 2 and the warp knitting machine tension compensation devices 1, namely, one yarn 3 is provided with the tensioner 2 for adjusting the tension, and the warp knitting machine tension compensation devices 1 perform tension compensation while adjusting the tension of the tensioner 2.
Referring to fig. 14, the present invention further provides a tension control system, comprising at least two warp knitting machine tension compensation devices 1, wherein the warp knitting machine tension compensation device 1 is any one of the warp knitting machine tension compensation devices 1; the warp knitting machine tension compensation devices 1 are arranged in sequence along the yarn feeding direction, and the yarn 3 passes through the warp knitting machine tension compensation devices 1 in sequence.
The tension compensation devices 1 of the warp knitting machines adjust the tension of the yarns 3 together, and the tension compensation devices 1 of the warp knitting machines are matched to enlarge the tension adjusting range of the whole tension control system, so that the tension adjusting device can be used for dealing with the tension to be adjusted when the let-off quantity is suddenly changed greatly; in addition, the tension compensation device 1 of the warp knitting machine only depends on the swing of the swing rod 13 under the action of the gravity of the swing rod to adjust the tension of the yarns 3, so that the reaction speed is high no matter the instantaneous warp feeding quantity demand is suddenly changed from small to large or from large to small, the tension of the yarns 3 is timely adjusted by the whole tension control system, the tension of the yarns is kept unchanged when the warp knitting machine 5 is used for knitting, and the knitting quality is stable.
It should be noted that, although the above embodiments have been described herein, the invention is not limited thereto. Therefore, based on the innovative concepts of the present invention, the technical solutions of the present invention can be directly or indirectly applied to other related technical fields by making changes and modifications to the embodiments described herein, or by using equivalent structures or equivalent processes performed in the content of the present specification and the attached drawings, which are included in the scope of the present invention.
Claims (7)
1. A tension compensation device of a warp knitting machine is characterized by comprising a yarn guide piece, a low limiting piece, a high limiting piece, a swinging rod and a fixed porcelain eye;
the yarn guide piece, the low limiting piece, the high limiting piece and the fixed porcelain eye are sequentially and fixedly arranged, and the low limiting piece is lower than the high limiting piece; the swing rod is provided with a movable porcelain eye, and the yarn is wound on the yarn guide piece and sequentially passes through the movable porcelain eye and the fixed porcelain eye; the swing rod is hinged, and a rotating shaft of the swing rod is horizontally arranged; the swing rod penetrates between the low position limiting piece and the high position limiting piece, and the swing rod turns upwards under the action of pulling of the yarns when the yarns are tightened until the swing rod abuts against the high position limiting piece, and turns downwards under the action of gravity of the swing rod when the yarns are loosened so as to straighten the yarns until the swing rod abuts against the low position limiting piece;
the yarn guide device comprises a yarn guide plate, a yarn limiting piece, a swinging rod and a fixing porcelain eye, wherein the yarn guide plate, the yarn limiting piece and the swinging rod are arranged in a staggered way;
a rotating shaft is arranged between the fixed plates, one end of the oscillating rod is rotationally arranged at the rotating shaft in series along the circumferential direction of the rotating shaft, and the other end of the oscillating rod is provided with the movable porcelain eye.
2. The warp knitting machine tension compensation device of claim 1, wherein the movable porcelain eye is lower than the yarn guide and the fixed porcelain eye when the swing lever is turned to abut against the height limiting member.
3. The warp knitting machine tension compensating device according to claim 1, wherein the yarn guide, the lower limit member and the upper limit member are rod-shaped, and the yarn guide, the lower limit member and the upper limit member are arranged in parallel.
4. The warp knitting machine tension compensation device according to claim 3, wherein the swing rods are provided with at least two, and the number of the fixed porcelain eyes is the same as that of the swing rods; each oscillating piece is arranged in sequence along the direction parallel to the axial direction of the yarn guide piece, each fixed porcelain eye is arranged in sequence along the direction parallel to the axial direction of the yarn guide piece, and each oscillating piece is matched with each fixed porcelain eye one by one.
5. A tension control system, comprising a warp knitting machine tension compensation device and a tensioner, wherein the warp knitting machine tension compensation device is the warp knitting machine tension compensation device of any one of claims 1 to 4; the tensioner and the warp knitting machine tension compensation device are sequentially arranged along the yarn feeding direction, and yarns sequentially pass through the tensioner and the warp knitting machine tension compensation device.
6. The tension control system of claim 5, wherein the warp knitting machine tension compensation device is provided in a plurality; the tensioner and the warp knitting machine tension compensation devices are sequentially arranged along the yarn feeding direction, and yarns sequentially penetrate through the tensioner and the warp knitting machine tension compensation devices.
7. A tension control system comprising at least two warp knitting machine tension compensation devices, said warp knitting machine tension compensation devices being the warp knitting machine tension compensation devices of any one of claims 1 to 4; the tension compensation devices of the warp knitting machines are sequentially arranged along the yarn feeding direction, and yarns sequentially pass through the tension compensation devices of the warp knitting machines.
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| CN113716395A (en) * | 2021-05-13 | 2021-11-30 | 福建省宏港纺织科技有限公司 | Novel yarn tension regulator |
| CN113488332B (en) * | 2021-06-28 | 2023-06-06 | 昆山玛冀电子有限公司 | Coil forming machine |
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