JPH0949156A - Apparatus for treating crossing yarn of knitting machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To surely capture a needle in a knit range by displacing crossing yarn downward by a yarn-lowering means when a yarn-feeding port is passed through a non-knit range to a knit range. SOLUTION: This crossing yarn treating apparatus of a carriageless V bedknitting machine is provided with a yarn-lowering means 20 to lower knitting yarn delivered from plural yarn feeding ports supported by yarn feeding means 18 and a transfer mechanism 22 to reciprocate the lowering means in the lateral direction of the knit fabric. When a certain yarn-feeding port is passed through a non-knit range to a knit range during the knitting work according to a knitting plan, a nozzle 24 to eject air above the tip end of a pair of needle beds 12 arranged in an inverted V-shape or a yarn-lowering means 20 composed of a plate member vertically movable relative to the part above the tip end of the needle bed is moved to a prescribed position by the action of the transfer mechanism 22 and the crossing yarn lowered in the above state is pressed down to a height to enable sure capture of the yarn path with the knitting needle 14 in the knit range to perform the knitting work according to the knitting plan.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for treating a transition yarn in a knitting machine so that the transition yarn is caught by a knitting needle in a knitting section.

[0002]

2. Description of the Related Art In a multicolor single knitted fabric such as intarsia pattern knitting, a knitting section in which a specific yarn that has been supplied is knitted and a knitting segment that is not a specific yarn that has been supplied There is an unorganized section on the same course. When this unknitted section exists between the starting point of the particular thread that has been fed and the knitting section, the particular thread that has been fed becomes a crossover thread in the unknitted section.

In knitting such a single knitted fabric,
When the yarn feeder for feeding the specific yarn passes through the unknitted section and travels to the knitting section, the distance from the starting point of the crossover thread to the yarn feeder is large, and therefore the path of the crossover thread to the knitting needle in the knitting section That is, the height may be too high, and the yarn from the yarn feeder may not be captured by the needle in the knitting section and may not be knitted. This is done by using one end in the width direction of the knitted fabric or the boundary between the unknitted section and the other knitting section that is adjacent to the unknitted section and is upstream of the section in the running direction of the yarn feeder as a starting point. This is because the path of the yarn extending toward the yarn outlet gradually increases from the side of the starting point toward the side of the yarn supplying port, and becomes higher at the front end of the knitting section so that the yarn is hard to be caught by the advanced needle.

As one of the devices for surely catching the crossover yarn on the knitting needles of the knitting section, the yarn feeders are arranged on the knitting machine so as to be movable in the vertical direction, and the yarn feeders are normally urged upward. There is a device in which the yarn feeder that engages with the carriage is lowered as necessary (Japanese Utility Model Laid-Open No. 58-163585).

This device sets the auxiliary piston of the carriage so that it cannot move up and down when knitting a knitted fabric in which a crossover yarn is generated, and engages with a yarn feeder provided in front of a knitting section where the carriage is located. , The auxiliary piston is brought into contact with the upper ends of the upper and lower levers connected to the yarn feeder to lower the yarn feeder. As a result, the route of the knitting yarn from the lowered yarn feeder is lowered before the knitting needle in the knitting section and is reliably caught by the needle in the knitting section.

However, in the above-mentioned conventional apparatus, all the yarn feeders must be provided so as to be movable in the vertical direction, and mechanisms such as auxiliary pistons and solenoids must be added to the carriage, which makes the apparatus complicated and complicated. Upsized,
As a result, the increased weight of the device is disadvantageous for knitting at high speeds.

[0007]

SUMMARY OF THE INVENTION An object of the present invention is to reliably catch a yarn from a yarn feeder that has passed through an unknitted section to a knitting section on a needle of the knitting section with a simple device.

[0008]

According to the present invention, there is provided a crossover yarn processing device in a knitting machine, and a yarn lowering means for exerting a force for displacing the yarn from above to a yarn connected to a yarn feeder, and the yarn lowering device. A moving mechanism for reciprocating the means in the width direction of the knitted fabric, and a control device for controlling the operations of the yarn lowering means and the moving mechanism based on a knitting plan of the knitted fabric.

A certain yarn feeder passes through the unknitting section and is moved to the knitting section, and at the same time, the thread lowering means is moved to a predetermined position. In this state, the crossing yarn is displaced downward by operating the yarn lowering means. As a result, the path of the crossover yarn is lowered to a height level at which the needles of the knitting section are reliably caught, and the crossover thread is reliably caught by the needles of the knitting section.
The crossover yarn displaced downward may be directly captured by the needle (particularly the first needle) in the knitting section, or in the case of a flat knitting machine equipped with two front and rear needle beds, the needle not involved in knitting. The needle of the floor, which corresponds to the unknitted section (especially the last needle), may be caught and then the needle of the knitted section.

According to the present invention, since the yarn lowering means is provided so as to be reciprocally movable in the width direction of the knitted fabric and the crossover yarn is displaced downward by the yarn lowering means, the yarn feeder can be moved vertically. It is not necessary to provide any mechanism, and there is no need to provide a mechanism such as an auxiliary piston or a solenoid on the carriage, and the crossover yarn can be reliably caught by the needle in the knitting section.

[0011] In a preferred embodiment, the thread lowering means is provided so as to be vertically movable with respect to a nozzle for ejecting air above the tip of the needle bed or above the tip of the needle bed, and is vertically moved by an actuator. A plate member is provided. Further, the moving mechanism includes an endless belt wound around a pair of pulleys, and a drive source that rotates at least one pulley.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS As a knitting machine used for carrying out the present invention, for example, a so-called carriageless flat knitting machine which does not include a carriage for a cam for reciprocating a plurality of knitting needles is preferable. The carriageless flat knitting machine individually reciprocates a plurality of knitting needles by an actuator such as a linear motor. In ordinary knitting, a plurality of knitting needles are individually reciprocated in synchronization with the movement of the yarn feeder. One of such carriageless flat knitting machines is described in Japanese Patent Publication No. 12855/1989.

Referring to FIGS. 1 to 4, a carriageless flat knitting machine 10 comprises two V-shaped knitting machines arranged in an inverted V shape at intervals in the front-rear direction for knitting a multicolor single knitted fabric. Needle beds 12, 12, a plurality of knitting needles 14 arranged in parallel on each needle bed 12, a plurality of yarn feeders 16 each having one or more yarn guide holes, and supporting and supporting each yarn feeder 16. The yarn supplying device or yarn supplying means 18 for supplying the knitting yarn to the yarn supplying port 16, the yarn lowering device or yarn lowering means 20 for displacing the knitting yarn from the yarn supplying port 16 downward, and the yarn lowering means for knitting the fabric. And a moving mechanism 22 that reciprocates in the width direction.

Two needle bed needles, the front and rear needles 14
Intersect at the tips when they are advanced.
Each needle 14 is reciprocally moved in a predetermined pattern in synchronization with the movement of the yarn feeder 16 by an actuator, preferably a linear motor, in a pattern based on a predetermined knitting plan. In the reciprocating movement pattern of each knitting needle 14, as shown in an example in FIG. 10, the movement amount of the knitting needle when the position of the needle bed gap is zero is set on the vertical axis, and the movement amount or time of the yarn feeder 16 is set on the horizontal axis. It can be represented as a diagram. Such patterns are called wave patterns, knit patterns, needle movement patterns and the like.

Different types of knitting yarns are inserted through the yarn feeder 16. Each yarn feeding port 16 supplies the knitting yarn to the intersection of the front and rear needles 14 from above by the yarn feeding means 18 above the intersection of the front and rear needles 14 in the width direction (transverse direction) of the knitted fabric. It is moved back and forth. The movement of each yarn feeder 16 is set based on a predetermined knitting plan. Each yarn supply means 18 is
One of the plurality of rails 24 assembled to the frame 19 (see FIG. 3) of the knitting machine 10 in a state of extending above the intersection of the front and rear needles 14 in parallel to the width direction of the knitted fabric, the longitudinal direction of the rails. It is supported so that it can move back and forth.

In the illustrated example, the three rails 24 are attached to the knitting machine 1.
0 are arranged at intervals in the front-rear direction, and on both sides in the front-rear direction of the two rails 24 on the rear side (left side in FIG. 1) and on the rear side of the front (right end in FIG. 1) rail, Each of the two yarn supplying means 18 is sequentially arranged in the width direction of the knitted fabric. On the front side of the frontmost rail 24,
The moving mechanism 22 and one yarn supplying means 18 (not shown) are sequentially arranged. Therefore, in the illustrated example, the knitting machine 10 comprises 11 yarn supply means 18.

Each yarn supplying means 18 has a traveling body 28 supported by a plurality of rollers 26 on a corresponding rail 24 so as to be capable of reciprocating in the longitudinal direction of the rail, and a traveling body 28 extending downward from the traveling body 28. A stay 32 attached to the lower end of the stay by a screw member 30, a connecting member 36 attached to the lower end of the stay by a screw member 34, and an elongated member 38 having the yarn feeder 16 at the lower end.
The long member 38 is swingably connected to the lower end of the connecting member 36 by a pivot 40 extending in the width direction of the knitted fabric, and is urged by a spring 42 toward the center in the front-rear direction.

The lower end of the connecting member 36 is formed into a U-shaped cross section for receiving the upper end of the elongated member 38, and has a stopper 44 on the center side in the front-rear direction. The elongated member 38 is constantly pressed against the stopper 44 by the spring 42. In FIG. 1, one yarn supplying means 18
The connecting member 36 and the elongate member 38 are shown, but the connecting member 36 and the elongate member 38 of the other yarn supplying means 18 are omitted.

Each drive mechanism for individually moving the yarn supplying means 18 includes a plurality of pulleys (not shown) rotatably attached to the rails 24 at intervals in the longitudinal direction,
And an endless belt 46 hung on both pulleys.
The endless belt 46 is reciprocated based on a predetermined knitting plan by rotating one of the pulleys by a rotating mechanism 47 (not shown) such as an electric motor.

The running body 28 of each yarn supplying means 18 is connected to a corresponding endless belt 46 by a stopper member 48, whereby the yarn feeder 16 is reciprocally moved as the belt 46 moves. The yarn feeder 16 reciprocates at a predetermined position above the intersection of the front and rear needles 14, but when it passes the yarn feeder 16 of the yarn feeding means 18 supported by another rail 24, the force of the spring 42 is applied. It is displaced to the front side or the rear side against. Therefore, even if the movement paths of the yarn feeders 16 in the front-rear direction and the vertical direction are the same, the yarn feeders 16 do not hinder the movement of other yarn feeders.

The yarn lowering means 20 includes a traveling body 52 supported by a plurality of rollers 50 on the front rail 24 so as to be capable of reciprocating in the longitudinal direction of the rail, and a traveling body 52 extending downward from the traveling body 52. A stay 56 attached to the lower end by a screw member 54, a connecting member 60 attached to the lower end of the stay by a screw member 58, an elongated support member 62 connected to the lower end of the connecting member, and the support. A nozzle 64 attached to the member and a hose 66 for guiding compressed air to the nozzle are provided. The supply of compressed air to the nozzle 64 is controlled by opening and closing a solenoid valve (not shown).

The support member 62 is swingably connected to the lower end of the connecting member 60 by a pivot 68 extending in the width direction of the knitted fabric, and is biased toward the center in the front-rear direction by a spring 70. The lower end of the connecting member 60 is formed in a U-shaped cross-sectional shape that receives the upper end of the support member 62,
A stopper 72 is provided on the center side in the front-rear direction. The support member 62 is constantly pressed against the stopper 72 by the spring 70. The yarn lowering member, that is, the nozzle 64, blows compressed air to the intersection of the front and rear needles 14, particularly to the moving path of the knitting yarn, in detail, to the opening between the front and rear needle beds 12, 12. It is supported by the support member 62 so as to squirt toward it. As a result, the crossover yarn is lowered by the compressed air ejected from the nozzle 64.

The moving mechanism 22 for the thread lowering means 20 comprises:
A plurality of pulleys 74 (see FIG. 3) are rotatably attached to the rails 24 at intervals in the longitudinal direction, and an endless belt 76 hung around the pulleys 74. One of the pulleys 74 of the endless belt 76 is an electric motor 78.
By being rotated by (see FIG. 3), it is reciprocated based on a predetermined knitting plan.

The running body 52 of the thread lowering means 20 is connected to the corresponding endless belt 76 by the stopper member 80.
As a result, the thread lowering means 20 is reciprocated along with the movement of the belt 76. The lower end of the nozzle 64 has the front and rear needles 1
4 is reciprocated at a predetermined position above the intersection, particularly in the vicinity of the movement path of the yarn feeder 16 in the front-rear direction and the up-down direction, but when passing by the yarn feeder 16 of the yarn supplying means 18, the force of the spring 70 is applied. It is displaced to the front side against. Therefore, even if the movement path of the nozzle 64 in the front-back direction and the up-down direction is near the movement path of the yarn feeder 16, the nozzle 64
And the yarn feeder 16 do not hinder their movement.

An actuator for moving each knitting needle 14,
The drive source of the moving mechanism that moves each yarn supplying means 18, the electric motor 78 that is the rotation source of the moving mechanism 22 that moves the yarn restraining means 20, the solenoid valve for opening and closing the flow path of the compressed air ejected from the nozzle 64, and the like, By the control device described in detail later,
It is controlled based on a predetermined knitting plan.

An embodiment of a method of knitting the intarsia knitted fabric shown in FIG. 5 using the first, second and third yarn feeders will be described. For easy understanding, FIG. 5 shows one yarn feeder 16 that guides a yarn to be a crossover yarn, and a yarn 82 from the yarn feeder.

In the knitting pattern of FIG. 5, in the courses A1 to An and C1 to Cn, all the sections W1, W2 and W3 are first.
It is knitted with the knitting yarn from the yarn feeder. Of the courses B1 to Bm, the section W1 is knitted with the knitting yarn from the first yarn feeder,
Section W2 is knitted with the knitting yarn from the second yarn feeder, and section W2
3 is knitted with the knitting yarn from the third yarn feeder. First, second
The knitting yarn from the third yarn feeder can be black yarn, white yarn, and black yarn, respectively. Therefore, the yarn from the first yarn feeder becomes a transit yarn in the course B1 of the sections W3 and W2, and the yarn from the second yarn feeder becomes a transit yarn in the course B1 of the section W3.

The courses A1 to An are knitted by the following steps. With the second and third yarn feeders standing by at a predetermined position, for example, a position to the left of the knitted fabric 84 in FIG. 5, the first yarn feeder travels from left to right in FIG. 5 or vice versa. Moved during the period W1, W2
And a predetermined knitting needle corresponding to W3 is moved or driven. As a result, all sections W1 and W of the courses A1 to An are
2 and W3 are knitted by the knitting yarn from the first yarn feeder. In the meantime, the yarn lowering means is on standby at a position where the nozzle 64 is located at a predetermined position, for example, on the left side of the knitted fabric 84 in FIG.

When knitting the courses A1 to An, the moving direction of the first yarn feeder is reversed for each course such that the course A1 is left to right and the next course A2 is right to left. When the knitting of the course An is completed, the first yarn feeder,
It is returned to a predetermined standby position, for example, to the left of the knitted fabric in FIG.

The courses B1 to Bm are knitted by the following steps.

(1-1) First, in a state where the second and third yarn feeders are on standby at predetermined positions, the first yarn feeder and the yarn lowering means are moved from the left position in FIG. 5 to the section W1. Will be moved to. The first yarn feeder is stopped in the section W1 when it reaches the section W1, and temporarily waits at that position.
At the same time, in the yarn lowering means, the nozzle 64 has the section W
It is moved to a position before 1, and compressed air is jetted downward from the nozzle 64 for a predetermined time at that position.

The path of the knitting yarn from the first yarn feeder is originally supposed to be the section W1 in the section W1 as the knitting yarn extends from the starting point 86 toward the yarn feeder 16 as shown by the one-dot chain line in FIG. It is in a position that is difficult to catch by the inner knitting needle. However, by blowing the compressed air downward from the nozzle 64 for a certain period of time, the knitting yarn from the first yarn feeder is pushed down to the knitting needle side as shown by the solid line in FIG.

When the knitting yarn from the first yarn feeder is lowered,
The crossover yarn (knitting yarn from the first yarn feeder) that is driven by the needle closest to the section W1 that is not related to knitting in the section W2 and is driven is captured, and the path of the crossover thread is set. Keep low. Instead of catching the lowered crossover thread with the needle in the unknitted section W2 and keeping the path of the crossed thread low, the lowered crossover thread is a needle on the needle bed involved in knitting, and is in the knitting section W3. It may be captured by a needle, especially the first needle, to keep its crossover path low.

(1-2) Next, the second yarn feeder opens the section W2.
The vehicle is moved toward, and is stopped in the section W2 when it reaches the section W2, and temporarily waits at that position. Following the movement of the second yarn feeder, the yarn lowering means is moved to a position where the nozzle 64 is in front of the section W2, and compressed air is jetted downward from the nozzle 64 for a predetermined time at that position. This allows
The knitting yarn from the second yarn feeder is pushed down toward the knitting needle by the air jetted from the nozzle 64.

When the knitting yarn from the second yarn feeder is lowered,
The needle of the needle bed that is not related to knitting in the section W3 and is closest to the section W2 is driven to capture the crossover thread (the knitting thread from the second yarn feeder) and keep the path of the crossover thread low. .

(1-3) Next, the first, second and third yarn feeders are reciprocated left and right in the sections W1, W2 and W3, respectively. Meanwhile, by driving the predetermined knitting needles in the sections W1, W2 and W3, the sections W1, W2 and W3 are knitted by the knitting yarns from the first, second and third yarn feeders, respectively. At the start of knitting in the sections W1, W2, and W3, the knitting needles that catch the crossover yarn are the crossover yarns after the first knitting needles in the sections W1 and W2 capture the knitting yarns from the first and second yarn feeders, respectively. Will be moved to pay. In addition, instead of catching the lowered crossover thread with a needle in the needle bed that is not involved in knitting and keeping the path of the crossover thread low, it is a needle in the needle bed related to knitting. When catching with the first needle of the knitting section, it is not necessary to brush the crossover yarn, and knitting is started from the adjacent needle.

The courses C1 to Cn are the courses A1 to A.
It is knitted in the same manner as n. That is, the second and third
While the yarn feeder and the yarn lowering device of Fig. 5 are waiting at the predetermined positions, the first yarn feeder travels or moves from left to right in Fig. 5 or vice versa, and in the meantime, it moves to a predetermined position in the sections W1, W2 and W3. By driving the knitting needles, the entire sections W1, W2 and W3 of the courses C1 to Cn are knitted by the knitting yarn from the first yarn feeder.

The yarn lowering device, that is, the yarn lowering means 92 of the carriageless flat knitting machine 90 shown in FIGS. 6 to 8 is replaced by the elongated plate member 9 instead of the nozzle 64 in the yarn lowering means 20.
4 is attached to the lower end of the support member 62 as a thread lowering member. The plate member 94 has its both ends bent upward, and is attached to the lower end of the support member 62 at the central portion in the longitudinal direction so as to extend in the reciprocating direction of the yarn feeder 16.

The plate member 94 is provided with a support rod 98 connected to the cylinder mechanism by an air cylinder mechanism 96 attached to the front side of the traveling body 52, and a screw member 58 attached to the support rod.
And a slender support member 62 connected to a lower end portion of the connecting member, and the connecting member 60 is moved up and down. The upper end of the support rod 98 is received by a guide groove of a guide 100 attached to the front surface of the traveling body 52 so as to be movable in the vertical direction, and is also connected to a rod of the pilton mechanism 96.

The plate member 94 is always provided with the compression coil spring 1.
Although it is pulled up by 02, when the crossover thread is pushed down, it is lowered to the path of the crossover thread by the cylinder mechanism 96. As a result, the path of the crossover yarn is lowered and is reliably captured by the predetermined knitting needle. Cylinder mechanism 96
Instead of, a solenoid mechanism may be used.

The transit yarn processing apparatus of the present invention can be applied to a flat knitting machine other than a carriageless flat knitting machine, for example, a carriage type flat knitting machine in which a needle is moved by a cam. Hereinafter, a method of knitting the knitted fabric having the knitting pattern shown in FIG. 5 by the carriage type flat knitting machine in which the yarn feeder can run independently of the carriage will be described. The yarn lowering means is the yarn lowering means 20 for ejecting compressed air.

Courses A1 to An and C1 in which all the sections W1, W2 and W3 are knitted with the knitting yarn from the first yarn feeder.
In the same manner as in the above-described embodiment, Cn to Cn cause the first and second yarn feeders to reciprocate in the left-right direction while keeping the second and third yarn feeders and the yarn lowering means on standby at predetermined positions, Knitting is performed by driving the knitting needle.
When the knitting of all the courses A1 to An is completed, the carriage and the first yarn feeder are returned to the predetermined standby position on the left side of the knitted fabric.

Following the knitting of the courses A1 to An, the courses B1 to Bm are knitted. The course B1 is organized by the following steps.

(2-1) First, the first yarn feeder travels to the right from the standby position toward the section W1, and when it reaches the section W1, it is stopped in the section W1 and temporarily stands by at that position. . On the other hand, in the yarn lowering means, the nozzle is in the section W.
It is moved to a position before 1, and compressed air is jetted downward from the nozzle for a predetermined time at that position. Thereby, the first
The knitting yarn from the yarn feeder is pushed down to the side of the knitting needle as shown by the solid line in FIG.

(2-2) Next, the carriage is moved to the right to engage with the first yarn feeder, and the section W1 is moved to the first position.
It is moved together with the yarn feeder. During this time, the carriage
Knitting needles of section W1 are advanced in sequence, and course B of section W1
Knit 1 At this time, since the path of the yarn from the first yarn feeder is lowered, the yarn is reliably caught by the needle in the section W1. When the formation of the course B1 of the section W1 is completed,
The carriage is moved to the right of the knitted fabric, and the first yarn feeder is released.

(2-3) Next, the second yarn feeder travels to the right from the standby position toward the section W2, is stopped within the section W2 when the section W2 is reached, and temporarily stands by at that position. . At the same time, the yarn lowering means is moved to a position where the nozzle is in front of the section W2, and compressed air is jetted downward from the nozzle for a predetermined time at that position. As a result, the route of the knitting yarn from the second yarn feeder is lowered.

(2-4) Next, the carriage is moved to the left side of the second yarn feeder and then to the right side to engage with the second yarn feeder, and further to the section W2 for the second yarn feeder. Moved with the clues. During this period, the carriage sequentially advances the knitting needles of the section W2 to knit the course B1 of the section W2. At this time, since the yarn path from the second yarn feeder is lowered, the yarn is reliably caught by the needle in the section W2. Section W
When the knitting of the second course B1 is completed, the carriage is moved to the section W1 and the second yarn feeder is released.

(2-5) Next, after the carriage is moved to the left of the third yarn feeder, it is moved to the right to engage with the third yarn feeder, and the section W3 is fed to the third yarn feeder. Moved with the clues. During this time, the carriage sequentially advances the knitting needles of the section W3 to knit the course B1 of the section W3.

For the other courses B2 to Bm, the carriage engages with the yarn feeder waiting at the end of each section before approaching each section W1, W2, W3, and the other side of the section together with the yarn feeder. By moving to, each section will be organized sequentially. The moving directions of the carriages when the courses B1 to Bm are knitted may be the same or may be opposite directions for each course.

In the case of a flat knitting machine in which the yarn feeder is moved by a carriage, yarn lowering members, for example, nozzles 64 are provided on both left and right sides of the carriage, and the yarn lowering member pushes down the yarn between the yarn feeder and the carriage. become. Therefore, the moving mechanism that positively moves the yarn lowering means in the width direction of the knitted fabric is a carriage.

The above examples are all for knitting a multicolor single knitted fabric in which a crossover yarn is generated, but the present invention can also be applied to a knitted fabric whose knitting width gradually increases. . That is, when knitting the first course, the yarn from the yarn feeder is not knitted from the yarn gripping portion by the yarn end member provided at the standby position of the yarn feeder to the knitting section. Therefore, the yarn from the yarn feeder becomes a crossover yarn in this section. Therefore, when knitting such a single knitted fabric, after the crossover yarn is lowered by the yarn lowering means, the yarn from the yarn feeder may be caught by, for example, the first needle of the knitting section.

FIG. 9 shows an embodiment of a control device 110 used in a carriageless flat knitting machine for executing the above-mentioned knitting method.

The carriageless flat knitting machine has a plurality of actuators 1121 to 112n which respectively correspond to knitting needles and reciprocate to corresponding knitting needles, and reciprocally move to corresponding yarn feeders respectively corresponding to yarn feeders. A plurality of driving sources 1141 to 114m for controlling the flow of electricity, and a solenoid valve 1 for opening and closing the flow path of compressed air supplied to the nozzle 64 of the thread lowering means 20.
16 and the electric motor 78 of the moving means 22. A DC linear motor is used as each actuator. An electric motor with a speed reducer is used as each drive source.

The controller 110 has a plurality of first controllers 1201 to 120n which respectively correspond to actuators and position-control the movement of the corresponding actuators.
And a plurality of second controllers 1221 to 121, each of which corresponds to a drive source and controls the rotation of the corresponding drive source.
22 m, and a third controller 124 that controls the electric motor 78 and the solenoid valve. The first and second controllers 1201 to 120n and 1221 to 122m are provided as many as the corresponding actuators and yarn feeders, respectively.

The first controllers 1201 to 120n are
It has memories 1261 to 126n for storing the operation of the first controller based on a predetermined knitting plan. Similarly, the second
The controllers 1221 to 122m are memory 128 for storing the operation of the second controller based on a predetermined knitting plan.
The third controller 124 has a memory 130 for storing the operation of the third controller based on a predetermined knitting plan.

First, second and third controllers 120
1 to 120n, 1221 to 122m, 124 are provided to a common main controller 132 which gives an operation timing signal to the first controller which controls the needle position in synchronization with the operation of the second controller which controls the position of the yarn feeder. It is connected. The main controller 132 is connected to a memory 134 that stores the operation of the main controller 132 based on a predetermined knitting plan.

Memories 1261 to 126n and 1281 to 1
The data to be stored in 28 m, 130 and 134 is data based on a predetermined knitting plan, and is created by the knitting design computer 136 based on the predetermined knitting plan. The data created by the editing computer 136 is
It is directly supplied to each memory by a communication means such as a data communication line, or indirectly supplied to each memory through another communication means such as a tape, a disk, and a bubble memory.

The data stored in the memories of the first controllers 1201 to 120n are the position data of the corresponding actuator and thus the needle, and the knit pattern data for each knitting course. Second controller 1221 to 122
The data stored in each memory of m is the data such as the reciprocating width of the corresponding yarn supplying device and thus the yarn feeder and the traveling speed pattern for each knitting course.

The data stored in the memory 130 of the third controller 124 is the position data of the thread lowering means for each knitting course and the opening / closing timing of the solenoid valve 116. The data stored in the memory 134 of the main controller 132 is
Selection of the yarn supply device to be run for each knitting course,
These are data for selecting needles to be operated depending on the positions of the yarn supplying devices.

First, second and third controllers 120
1 to 120n, 1221 to 122m and 124 operate the corresponding actuator, drive source or electric motor and solenoid valve based on the data in the corresponding memory while being controlled by the main controller 132. This allows
The flat knitting machine knits a multicolor single knitted fabric having a predetermined knitting pattern while changing the traveling order of the plurality of yarn feeders as described above.

[Brief description of drawings]

FIG. 1 is a view showing an embodiment of a flat knitting machine equipped with a transit yarn processing device of the present invention.

FIG. 2 is a right side view of the flat knitting machine of FIG.

FIG. 3 is a diagram showing an embodiment of a crossover yarn processing device of the present invention.

FIG. 4 is a cross-sectional view showing a part of the crossover yarn processing device of FIG. 3 in an enlarged manner.

FIG. 5 is a diagram showing an example of a knitting pattern used for explaining a knitting method.

FIG. 6 is a view showing an example of a flat knitting machine provided with another transit yarn processing device of the present invention.

7 is a right side view of the flat knitting machine of FIG.

FIG. 8 is a diagram showing an example of another transit yarn processing device.

FIG. 9 is a block diagram of an electric circuit showing an embodiment of a control device.

FIG. 10 is a diagram showing an example of a knit pattern.

[Explanation of symbols]

 10, 90 Knitting machine 12 Needle bed 14 Needle 16 Yarn feeder 20,92 Thread lowering means 22 Moving means 24 Rail 2,506 Roller 28,52 Moving body 32,56 Stay 34,60 Connecting member 38,62 Supporting member 64 Nozzle ( (Thread lowering member) 66 hose 68 pivot 70 spring 72 stopper 74 pulley 76 endless belt 78 electric motor 94 plate member (thread lowering member) 96 air cylinder mechanism

Claims (3)

[Claims] 1. A yarn lowering means for applying a force for displacing the yarn from above to a yarn connected to a yarn feeder, a moving mechanism for reciprocating the yarn lowering means in a width direction of a knitted fabric, and the yarn. A transit yarn processing device in a knitting machine, comprising: a lowering means and a control device that controls operations of the moving mechanism based on a knitting plan of a knitted fabric. 2. The yarn lowering means includes a nozzle for ejecting air above the tip of the needle bed, or a plate member that is vertically movable with respect to above the tip of the needle bed and is moved up and down by an actuator. The processing device according to claim 1. 3. The processing apparatus according to claim 1, wherein the moving mechanism includes an endless belt wound around a pair of pulleys, and a drive source that rotates at least one pulley.