JPH0730492B2 - Yarn feeder of knitting machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a needle bed in which a large number of knitting needles are arranged and a carriage, each time the needle bed is moved relatively at an interval related to the knitting needle arrangement interval. The present invention relates to a knitting machine configured to supply a knitting yarn to one knitting needle in the knitting needles of the needle bed or one knitting needle provided on the carriage to knit a stitch, and particularly to have a plurality of yarn openings. The present invention relates to a yarn feeding device of a knitting machine.

(Prior Art) Conventionally, as a carriage having a knitting machine provided with a plurality of yarn ends, there is one disclosed in JP-A-55-98948. In this conventional knitting machine, a pair of yarn openings is arranged in a carriage so that it can be rotated around the hook of a knitting needle, and each of the yarn openings is individually driven to rotate by a motor provided corresponding to each yarn opening. Then, knitting yarns of different colors are supplied to the respective knitting needles.

(Problems to be Solved by the Invention) However, in this conventional knitting machine, since each yarn feeder is driven separately by the motor, the configuration for controlling the operation of the motor becomes complicated. There is a question.

However, the present invention can solve all the above problems.

Configuration of the Invention (Means for Solving the Problems) In order to solve the above problems, according to the present invention, as shown in FIG.
A plurality of yarn outlets 23a, 23b, 23c through which a, Yb, Yc are inserted are arranged in series in the left-right direction, and the respective yarn outlets 23a, 23b, 23c for supplying the knitting needles 2 with the yarns Ya, Yb, Yc. So that they can move in the horizontal and vertical directions together, and
Of the 23a, 23b, 23c, a plurality of yarn outlets 23a, 23b, 23c for arranging the yarn outlet 23b (see FIG. 14) for supplying the knitting yarn to the one knitting needle 2 at a predetermined position with respect to the one knitting needle 2. Is provided with a single yarn end selecting device 35 for integrally moving the yarns in the left-right direction, and a plurality of yarn ends for supplying the knitting yarn Yb of the yarn end 23b selected by the yarn end selecting device 35 to the one knitting needle 2. It is provided with a yarn feeder operating device A for operating 23a, 23b and 23c in the vertical and horizontal directions.

(Operation) With the above-described configuration, in the present invention, the yarn end selecting device 35
Of the plurality of yarn outlets 23a, 23b, 23c by moving the plurality of yarn outlets 23a, 23b, 23c integrally in the left-right direction.
After arranging the yarn feeder 23b for supplying the knitting yarn Yb to the one knitting needle 2 at a predetermined position with respect to the one knitting needle 2, the yarn feeder operating device A
The plurality of thread ends 23a, 23b, 23c are operated together in the up-down direction and the left-right direction by the
The knitting yarn Yb is supplied to the knitting needle 2 of the book.

(Embodiment) An embodiment of the present invention will be described below with reference to FIGS. 1 to 14. As shown in FIG. 2, a large number of knitting needles 2 and comb teeth 3 are provided on a needle bed 1 of this knitting machine. They are arranged in rows alternately.
Further, as shown in FIGS. 2 and 8A to 8D, a rack 4 having a large number of teeth having the same pitch as the row pitch of the knitting needles 2 is provided on the rear upper surface of the needle bed 1. .

As shown in FIG. 2, a carriage 5 is installed on the needle bed 1 so as to be movable in the left-right direction. A plurality of cam wheels 6 are integrally rotatably provided at the center of the upper portion of the carriage 5, and upper and lower surfaces of the cam wheels 6 are provided with a feed switching cam 7 and a carriage as illustrated in FIGS. 2 and 10. A large number of control cams such as a feed cam 8, a knitting fabric pressing cam 9, a yarn top / bottom cam 10, a knitting needle drive cam 11 and the like are formed. A cam drive motor 13 is mounted on the carriage 5 as shown in FIG.
The cam wheel 6 is shown in FIGS. 1 and 2 via 14, 15 and the belt 16.
It is designed to rotate clockwise in the figure.

As shown in FIG. 3, on the lower surface of the carriage 5, to guide the butt 2a of the knitting needle 2 in the working position on the needle bed 1 and the butt 2a of the knitting needle 2 in the rest position. And a rest bat passage 18 is formed. Further, a butt guide groove 19 is formed from the center of the operating butt passage 17 toward the front. As the cam wheel 6 rotates, the knitting needle drive cam 11 on the cam wheel 6 moves the knitting needle actuating member 20 shown in FIG. The butt 2a of one of the knitting needles 2 is moved back and forth along the butt guide groove 19 so that the one knitting needle 2 is advanced to the position where the wrench is removed and then retracted rearward of the knockover position. ing.

As shown in FIGS. 1 and 4 to 6, a pair of left and right support pieces 21 projectingly provided on the upper surface of the front portion of the carriage 5 supports a thread guide support rod 22 extending left and right so as to be movable left and right. Different yarns Ya, Yb, and Yc are inserted into the yarn carrier support rod 22, and three yarn carriers 23a to 23c that can move up and down together are inserted and supported in series at a predetermined interval in the left-right direction. ing.
Further, a latch retainer 24 for preventing the opening of the latch of the knitting needle 2 facing the respective yarn outlets 23a to 23c is movably supported by the yarn outlet supporting rod 22 so as to be vertically movable.

Behind the yarn outlets 23a to 23c, cam grooves 27, 28 are formed on both left and right sides.
And a latch pressing actuating plate 26 are provided, and the pins 29 projecting from the supporting pieces 21 are engaged with the cam grooves 27 and 28 of the actuating plates 25 and 26, respectively. Moreover, the upper edge of the yarn feeder actuating plate 25 is connected to each of the yarn feeders 23a to 23c, and the lower edge of the latch pressing actuating plate 26 is connected to the latch presser 24. Further, as shown in FIG. 1, a follow-up pin 30 which engages with the thread upper and lower cams 10 of the cam wheel 6 is provided on the carriage 5.
A cam follower lever 30 provided with a is rotatably supported at its rear end, and an engagement pin 30b projecting at its front end engages with a groove 31, 32 formed at the left end of each operating plate 25, 26. The yarn feeders 23a to 23c and the latch presser 24 are operatively connected to the yarn feeder upper and lower cams 10 via. The cam follower 30 shown in FIG.
Each operating plate 25, 26 is moved left and right via the, and the thread spools 23a-23c and the latch presser 24 are individually moved up and down according to the shape of the cam grooves 27, 28 of each operating plate 25, 26. There is.

As shown in FIG. 5, a rack 33 having a large number of teeth is formed on the lower surface of the left end portion of the yarn feeder support rod 22, and a permanent magnet 34 is fixed to the left end portion. The clue support rod
The needle drive motor on the carriage 5 behind the left part of 22.
35 is provided, the motor 35 and the thread support rod 22
A rotation shaft 36 that extends in the front-rear direction is rotatably supported between and. An intermediate gear 38 that meshes with a drive gear 37 provided on the yarn feeder drive motor 35 is fixed to the rear end portion of the rotary shaft 36, and a pinion 39 that meshes with the rack 33 is attached to the front end portion.
Are formed. Then, with the forward / reverse rotation of the yarn feeder drive motor 35, the yarn carrier 23, the intermediate gear 38, the pinion 39, and the rack 33 are engaged with the yarn carrier 23 through the engagement of the rack 33 with each of the yarn carriers 23a.
~ 23c is designed to be horizontally moved. or,
A hall element 40 is provided on the carriage 5, and when the yarn carrier support rod 22 is moved to the left end position of the left and right movement range, the permanent magnet 34 on the yarn carrier support rod 22 moves the hall device. Corresponding to 40, the hole element 40 is adapted to output a yarn end reference position detection signal.

Then, at the start of knitting, the permanent magnets 34 on the yarn end supporting rods 22 are arranged relative to the Hall element 40, and the respective yarn ends 23a to 23c.
Is arranged to the left of one knitting needle 2 to be knitted next. Next, based on the action of the comparison means 101, which will be described later,
~ 23c, as indicated by black circles in Figs. 12 and 13, 1
When the individual thread ends are designated, the respective thread openings 23a to 23c are moved to the right integrally with the thread guide support rod 22 or stopped and held based on the rotation stop of the thread drive motor 35, and the specified thread is moved backward in the carriage sliding direction. On the side, it is arranged between the one knitting needle 2 and the knitting needle 2 to the left of the knitting needle 2. After that, the respective yarn outlets 23a to 23c are integrally moved upward depending on the shapes of the yarn upper / lower cam 19 and the cam groove 27 of the yarn outlet operating plate 25. Continued, each thread 23
The a to 23c are moved to the front side in the carriage sliding direction, and the knitting yarn is supplied to the one knitting needle 2 by the yarn port specified previously.
Then, by the action of the above-mentioned upper and lower cams 10 and the like, the respective yarn ends 23a-2a
3c is moved downward and the yarn feeding operation is completed.

That is, when the carriage 5 is moving to the right, for example, when knitting is performed based on the operation of the second yarn end 23b, the second yarn end 23b is moved left and right based on the diagram shown by the solid line in FIG. It In short, after the carriage feed is completed, the second yarn end 23b shown by a black circle in FIG. 12 (0) is moved rightward by the pitch of one row of knitting needles to the position shown by a black circle in FIG. 12 (1), As shown in FIG. 10 (5), the upper and lower cams 10 are moved upward by the action of the upper and lower cams 10, and the second yarn end 23b is continuously moved to the 12th
The knitting yarn Yb is supplied to one knitting needle 2 by further moving to the right by the pitch for one row of knitting needles to the position indicated by the black circle in FIG. After that, the second thread 23b and the other thread 23a, 23c
It is moved back to the original position shown by the black circle in Fig. 12 (0).

On the other hand, when knitting is performed based on the operation of the second yarn end 23b when the carriage 5 is moving to the left, the second yarn end 23b is moved left and right based on the diagram indicated by the alternate long and short dash line in FIG. That is, after the carriage feed is completed, after the second yarn end 23b indicated by a black circle in FIG. 13 (0) is moved to the right by a double the knitting needle arrangement pitch to the position indicated by a black circle in FIG. 13 (1). , As shown in FIG. 10 (5), the upper and lower cams are moved by the action of the yarn upper and lower cams 10, and the second yarn mouth 23b continues to the left until the position indicated by the black circle in FIG. The knitting yarn Yb is supplied to one knitting needle 2 after being moved by that amount.

The yarn feeder drive motor 35, the yarn feeder upper and lower cams 10 and the like constitute a yarn feeder operating device A.

Next, a structure for moving the carriage 5 step by step for each knitting needle row installation pitch will be described. FIG. 8 (a)-
As shown in (d), a pair of links 50, 51 are rotatably supported by a support shaft 52 at the rear portion of the carriage 5, and are connected to each other by a pin 53 at their opposing inner ends. External teeth 54 are rotatably supported by pins 55 on the outer ends of the links 50, 51, and are engaged with and disengaged from the rack 4 on the needle bed 1 as the links 50, 51 rotate. There is. Both links 50,5
An internal tooth 5 having a pair of tooth portions corresponding to the external tooth 54 between 1
6 is supported by a pair of pins 57 via a long hole 58 so as to be capable of relative rotation and left-right movement, and is engaged with and disengaged from the rack 4 alternately with the outer teeth 54 as the links 50, 51 rotate. Has become.

As shown in FIG. 2, an operating lever 59 is rotatably supported on a carriage 5 by a support shaft 60, and is connected to the one link 50 by a pin 61 at a rear end thereof.
A follow-up pin 62 that engages the feed switching cam 7 on the cam wheel 6 is provided at the left end. Then, according to the cam shape of the feed switching cam 7 shown in FIG. 10, while the cam wheel 6 is rotated once, the links 50 and 51 are rotated once reciprocally via the operating lever 59, and FIG. As shown in (d), the external teeth 54 are disengaged from the rack 4 and the internal teeth 56 are engaged, and the external teeth 54 are engaged and the internal teeth 56 are disengaged. The tooth 54 disengages and the internal tooth 56 returns to the engaged state.

As shown in FIGS. 2 and 7, a feed operation lever 63 is rotatably supported by a support shaft 64 on the carriage 5, and a top 65 engaging with the forked portion of the internal teeth 56 is provided at the rear end. A follow-up pin 66 that is rotatably attached and that engages with the carriage feed cam 8 on the cam wheel 6 is provided at the front end.

On the carriage 5 on the left side of the feed operation lever 63, a switching plate 67 is provided with a pair of front and rear pins 68 to form a pair of front and rear elongated holes 69.
A stepwise cam groove 70 is formed in the center of the switching plate 67, and a permanent magnet 71 is attached to the inner edge of the rear end. Further, on the carriage 5, a hall element 72 which constitutes a carriage movement direction detecting means is provided together with the permanent magnet 71, and the switching plate is provided.
When 67 is moved to the rear moving end position where the forward / backward movement range is defined, the permanent magnet 71 corresponds to this Hall element 72 and a carriage movement direction detection signal is output.

A linkage lever 73 is rotatably supported by a support shaft 74 on the carriage 5 in front of the feed operation lever 63, and a linkage pin engaging with a cam groove 70 of the switching plate 67 is provided at a rear end of the linkage lever 73.
75 is projected, and a projection 76 is formed upward in the middle part. A pair of engagement levers 77 and 78 are rotatably supported on the support shaft 74, and are urged to rotate toward each other by a spring 79, and the follower pin of the feed operation lever 63 is attached to the inner surface thereof. 66 and the projection 76 of the link lever 73 are alternately engaged.

Then, as shown in FIG. 2, when the carriage 5 is in the leftward direction and the switching plate 67 is moved to the front position, the rear end of the cam groove 70 and the linkage pin 75 are engaged with each other. Based on
The linkage lever 73 is arranged at the right rotation position. Then, the engagement lever 77 on the right side is disengaged from the follow-up pin 66 of the feed operation lever 63 through the engagement with the protrusion 76 of the linking lever 73, and the other engagement lever 78 engages with the follow-up pin 66. Accordingly, the follow-up pin 66 is pressed toward the inner peripheral edge of the carriage feed cam 8. Also, as shown in FIG. 7, when the carriage 5 is in the rightward direction and the switching plate 67 is moved to the rear position, the front end portion of the cam groove 70 and the linkage pin 75 are engaged with each other. The linkage lever 73 is arranged at the left rotation position. And the protrusion of the link lever 73
The engagement lever 78 on the left side is disengaged from the follow-up pin 66 by the engagement with 76, and the engagement lever 77 on the right side is released from the follow-up pin 66.
And the follower pin 66 is pressed against the outer peripheral surface of the carriage feed cam 8.

Therefore, when the carriage 5 is moving to the right, the engagement of the outer teeth 54 and the inner teeth 56 with the rack 4 by the action of the feed switching cam 7 changes from the state shown in FIG. 8 (a) to the state shown in FIG. 8 (b). The internal teeth 56 are disengaged from the rack 4 in this state, and in this state, the cam surface from the equal radius cam portion 8a to the outer cam surface 8b of the carriage feed cam 8 shown in FIG. As shown in the figure (c), the internal tooth 56 is 1 of the rack 4.
It is moved to the right by the pitch (to the left when viewed from the rear side in FIG. 8 (c)). Thereafter, the action of the feed switching cam 7 causes the outer teeth 54 and the inner teeth 56 to be engaged with the rack 4 in the eighth state.
The state shown in FIG. 8C is switched to the state shown in FIG. 8D so that the internal teeth 56 are engaged with the rack 4, and in this state, the cam extending from the outer cam surface 8b of the carriage feed cam 8 to the equal radius portion 8a. By the action of the surface, with the rear end fixed to the feed actuating lever 63, the turning force in the counterclockwise direction in FIG.
Is stepped to the right by one pitch.

Similarly, in the leftward state of the carriage 5, the internal teeth 56 in the state of being disengaged from the rack 4 by the action of the cam surface from the equal radius cam portion 8a to the inner cam surface 8c of the carriage feed cam 8 shown in FIG. Is moved to the left by one pitch, and thereafter, by the action of the cam surface from the inner cam surface 8c of the carriage feed cam 8 to the equal radius portion 8a, the feed actuating lever 63 is engaged with the rack 4 with the internal teeth 56 engaged. The turning force in the clockwise direction in FIG. 2 is applied to the carriage 5, and the carriage 5 is stepwise moved leftward by one pitch.

Next, the carriage drive direction changing means provided behind the resting butt passage 18 of the carriage 5 will be described. Second, third,
As shown in FIG. 7 and FIGS. 9A and 9B, behind the resting butt passage 18, an operating plate 80 is supported movably in the left and right directions at approximately the center of the carriage 5 on the left and right sides, and at both ends thereof. An engagement piece 80a is provided so as to protrude downward. Actuation plate 8
On both left and right sides of 0, a movable body 81 is supported by the carriage 5 so as to be movable in the left and right directions, and an engagement recess 81a capable of engaging with an engagement piece 80a of an operating plate 80 is formed on the upper surface thereof. . Both moving bodies 81 are always biased and held by the action of the spring 82 toward a predetermined position on the center side of the carriage 5 shown in FIG. 9 (a).

A sensing member 83 is rotatably supported by pins 84 at the outer ends of both moving bodies 81, and the rest butt passage 18 is provided at the outer ends thereof.
There is provided an inclined cam surface 83a and an engaging portion 83b which are located inside and can engage with the butt 2a of the rest knitting needle 2 in the knitting section on the needle bed 1. Then, both sensing members 83 are actuated by a leaf spring 85 provided on the moving body 80, so that the inclined cam surface 83a at the outer end of the sensing member 83 is actuated.
Alternatively, the engaging portion 83b is biased toward the operating position where it engages with the butt 2a of the rest knitting needle 2.

On the other hand, as shown in FIGS. 2 and 7, a reversing operation lever 86 is rotatably supported on the carriage 5 by a support shaft 87, and is connected to the operation plate 80 by a pin 88 at its rear end. The left end is connected to the switching plate 57. Then, when the operating plate 80 is moved to the right,
The switching plate 67 is moved rearward via the reversing operation lever 86, and the permanent magnet 71 faces the Hall element 72. When the operating plate 86 is moved to the left, the switching plate 67 is moved to the front and the permanent magnet 71 is separated from the hall element 72.

Further, as shown in FIG. 7, when the carriage 5 is stepwise moved to the right and reaches the right side in the knitting section on the needle bed 1, the carriage 5 is located on the left side of the carriage 5 as shown in FIG. 9 (a). Sensing member 83 (located on the right side when viewed from the rear side in the figure)
The engaging portion 83b of the above engages the butt 2a of the first mesh needle 2 of the rest knitting needle group to prevent the movement of the moving body 81 on the left side (the right side in FIG. 9 (a)), and then the carriage 5 is further extended. When stepwise moved to the right (left in the figure), the sensing member 83 on the right (left in the figure) has its inclined cam surface 83a and the butt 2a of the idle knitting needle 2.
By the engagement with and while being avoided and rotated, it is moved integrally with the carriage 5, and relative movement occurs between the sensing member 83 and the moving body 81 on the left side (right side in the figure).

As a result of the relative movement, as shown in FIG.
The engaging piece 80a of 80 engages with the engaging recess 81a of the moving body 81 on the left side (right side when viewed from the rear side in the figure), and the carriage 5 thereafter.
The operating plate 80 is moved relative to the carriage 5 to the left (to the right in the figure) in accordance with the movement to the right. Thereby, Carriage 5
The upper reversing operation lever 86 is rotated counterclockwise from the state shown in FIG. 7, and the switching plate 67 is moved to the front position as shown in FIG. Accordingly, as shown in FIG. 7, the linkage lever
The feed operation lever 6 via the 73 and the pair of engagement levers 77 and 78.
The follow-up pin 66 on 3 is the outer cam surface 8b of the carriage feed cam 8.
From the inside to the inner cam surface 8c. As a result, the moving direction of the carriage 5 is reversed from right to left.

In this state, when the carriage 5 is stepwise moved to the left and reaches the left side in the knitting section on the needle bed 1, as in the above-described reversing operation on the right side in the knitting section, the movement direction of the carriage 5 is opposite to the left and right. The moving direction of the carriage 5 is reversed from the left side to the right side by the action of the sensing member 83 located on the side, the moving body 81, and the like.

Next, an electric block circuit diagram of this knitting machine will be described with reference to FIG. A permanent magnet 90 is provided on the right side of the rear side of the carriage 5, and a hall element 91 for detecting a reference position is provided on the upper surface of the left end of the needle bed 1. The permanent magnet 90 on the carriage 5 is the hall element. When facing 91, the carriage reference position detection signal SG1 is input to the carriage position counter 96. One permanent magnet 93 is attached to the outer peripheral edge of the cam ring 6, and three Hall elements are provided on the carriage 5 on the outer periphery of the cam ring 6 at a predetermined angular interval.
94a to 94c are provided. When the permanent magnet 93 faces the hole element 94a for selecting the yarn end as the cam wheel 6 rotates, the hole element 94a outputs the yarn end selection signal SG2 to the carriage position counter 96 and the yarn end control means 97. Further, when the permanent magnet 93 on the cam wheel 6 faces the Hall element 94b for yarn end operation, the yarn end operation signal SG3 is output to the yarn end control means 97. Furthermore, when the permanent magnet 93 faces the hole element 94c for returning the yarn end, the hole element 94c outputs the yarn return signal SG4 to the yarn end controlling means 97.

On the other hand, the permanent magnet 71 on the switching plate 67 described above is a hall element.
The carriage movement direction detection signal SG7 output when facing 72 is output to the carriage position counter 96 and yarn end control means 97, respectively.

An encoder 95 for detecting the rotation angle of the yarn feeder drive motor 35 is built in, and an angle detection signal SG5 output from the encoder 95 is output to a yarn feeder position counter 98. Further, from the hole element 40 for detecting the yarn end reference position, the yarn end reference position detection signal SG6 is sent to the aforementioned yarn end position counter 9
Output to 8.

Further, the pattern pattern data input from the input device 99 composed of a keyboard, a punch card, etc. is stored in the pattern pattern data storage device 100. Then, the comparison means 101 compares the data read from the pattern pattern data storage device 100 with the carriage position data output from the carriage position counter 96, and outputs a predetermined signal for designating the yarn end to be involved in the knitting of the stitch. Output to the yarn end control means 97. Then, the yarn end control means 97 outputs the yarn end control signal based on the yarn end position data output from the yarn end position counter 98 and the carriage movement direction detection signal SG7, the yarn end selection signal SG2, the yarn end operation signal SG3, and the yarn end return signal SG4. Output to 35.

Next, the operation of the knitting machine configured as described above will be described mainly with reference to FIGS. 10 to 14. The numbers in parentheses in FIG. 10 correspond to those in FIGS. 12 to 14.

Now, as shown in FIG. 7, a case where a stitch is formed by the knitting yarn Yb inserted in the second yarn outlet 23b in the rightward state of the carriage 5 will be described. When the carriage 5 is stopped at the left end of the needle bed 1, the permanent magnet 90 on the carriage 5 faces the Hall element 91 on the needle bed 1 as shown in FIG. 11, and as shown in FIG. The switching plate 67 is arranged at the rear position, and the permanent magnet 71 faces the Hall element 72. Based on the rearward arrangement of the switching plate 67, the follow-up pin 66 on the feed operation lever 63 is connected to the carriage feed cam 8 via the connecting lever 73 and the pair of engaging levers 77 and 78.
Is engaged with the outer cam surface 8b. Further, the permanent magnets 34 on the yarn carrier support rod 22 are arranged relative to the Hall element 40, and as shown in FIG. 8 (d), the inner teeth 56 are engaged with the rack 4 and the outer teeth 54 from the rack 4. Has been withdrawn.

In this state, the cam drive motor 13 on the carriage 5 and the needle bed 1
When the electric block circuit therein is powered on, the cam wheel 6 starts to rotate clockwise in FIG. 7 based on the rotation of the cam drive motor 13. Then, in accordance with the shape of the carriage feed cam 8 shown in FIGS. 7 and 10, the feed actuating lever 63 is rotated counterclockwise in FIG. 7 about the top 65 as the center of rotation, and the carriage 5 is moved to the right. It is sent by the line pitch. And the
The carriage position counter 96 shown in Fig. 11 has hall elements 91, 9
The number of movement pitches of the carriage 5 is counted based on the signals SG1, SG2, SG7 output from 4a, 72. Then, after the carriage movement for one row of knitting needles, as shown in FIG. 12, the respective yarn outlets 23a to 23c are moved to the right together, and the third yarn outlet is moved.
23c is between the knitting needle 2 (hereinafter, referred to as a knitting knitting needle, which is indicated by a solid line in FIG. 12 (0)) and the knitting needle 2 adjacent to the left of the knitting needle 2 (indicated by a chain line in the same figure) involved in the next knitting Will be placed. Since the arrangement intervals of the yarn openings 23a to 23c are the same as the knitting needle array pitch, the other yarn openings 23a and 23b are also arranged between the knitting needles 2 shown by the chain line in the figure.

Next, when the permanent magnet 93 on the cam wheel 6 faces the hall element 94a, the thread guide control means 97 responds to the carriage position data and the pattern data based on the thread select signal SG2 output from the hall element 94a. A signal for selecting the yarn end to be driven is output to the yarn end drive motor 35, and the drive motor 35 is normally rotated by a predetermined angle in accordance with the signal. Based on the rotation of the motor 35, the thread support rod 22 and the three thread
23a to 23c are integrally moved to the right by a pitch of one row of knitting needles. As a result, as shown in Fig. 12 (1), the second thread
23b is arranged near the left side of the knitting needle 2. At the time of rotation of the yarn end drive motor 35, the yarn end position counter 98 calculates the yarn end moving amount based on the angle detection signal SG5 output from the encoder 95 and the yarn end reference position detection signal SG6 output from the hall element 40, and the yarn end control means 97 Output to.

As the cam wheel 6 continues to rotate, the knitting needle 2 is moved forward in accordance with the cam shape of the knitting needle drive cam 11 shown in FIG. 10 (see FIG. 14 (2)). After that, the cam 11 is slightly moved backward according to the shape of the cam 11 (see FIG. 14 (3)). Subsequent rotation of the cam wheel 6 causes the respective yarn outlets 23a to 23c to move integrally to the upper position in accordance with the cam shape of the yarn upper and lower cams 10 (see FIG. 14 (4)).

After that, when the permanent magnet 93 on the cam wheel 6 faces the hall element 94b, the hole actuating signal SG3 is input from the hall element 94b to the thread end control means 97, and the thread end control means 97 again sends a predetermined signal to the thread end drive motor 35. Is output to rotate the drive motor 35 by a predetermined angle.

Based on the rotation of the yarn feeder drive motor 35, the yarn feeders 23a to 23c are moved to the right together with the yarn feeder support rod 22 by the pitch corresponding to one knitting needle row, as shown in FIGS. 14 (5) and 12 (5). The knitting yarn Yb is hooked on the knitting needle 2 by the second yarn outlet 23b.

Subsequently, as the cam wheel 6 rotates, the yarn outlets 23a to 23c are integrally moved downward in accordance with the shape of the yarn upper and lower cams 10, and the knitting yarn Yb is reliably wound on the knitting needle 2. Then, according to the cam shape of the knitting needle drive cam 11, the knitting knitting needle 2 retracts to the knockover position and a new stitch is formed (see FIG. 14 (7)).

Immediately after the end of this knitting operation, the permanent magnet on the cam wheel 6
When 93 is opposed to the hall element 94c, the hall element 94c outputs the yarn end return signal SG4 to the yarn end control means 97, and the yarn end control means 97 outputs a predetermined drive signal to the yarn end drive motor 35 based on the yarn end return signal SG4. Output the yarn end drive motor
Rotate 35 in the opposite direction. As a result, each of the thread guides 23a to 23c is integrally moved leftward together with the thread support rod 22,
23a to 23c are returned to the original position shown in FIG. 12 (0).

As described above, while the cam wheel 6 is rotated once, the knitting needle 2
And, the knitting of the stitch by the selected yarn end 23b is performed.
Then, by selectively operating each of the yarn outlets 23a to 23c according to the pattern pattern data input by the input device 99, multicolor knitting with three knitting yarns of different colors can be performed.

Further, in this embodiment, the drive sources for selecting the respective yarn outlets 23a to 23c can be made common, and even when the knitting operation is performed, the three yarn outlets can be driven by one driving source. The configuration for that can be simplified.

The present invention is not limited to the above-mentioned embodiment, and for example, Japanese Patent Application Laid-Open No. 58-1208 by the same applicant as this application
As described in Japanese Patent Publication No. 47, it can be embodied as a knitting machine capable of knitting with a single knitting needle provided on a carriage.

EFFECTS OF THE INVENTION As described in detail above, according to the present invention, not only can multicolor knitting be performed by using a plurality of yarn feeders, but also a drive source for selecting a yarn feeder involved in knitting can be made common. This has the excellent effect of being able to simplify the structure.

[Brief description of drawings]

FIG. 1 is a plan view of a carriage in a knitting machine embodying the present invention, FIG. 2 is an enlarged plan view of the knitting machine showing a leftward carriage state, FIG. 3 is a bottom view of the carriage, and FIG. Enlarged plan view, FIG. 5 is an enlarged front view of the yarn end, FIG. 6 is a partially enlarged cross-sectional view of the yarn end, FIG. 7 is an enlarged plan view showing the rightward state of the carriage, and FIGS. 8 (a) to 8 (d). 9 is an enlarged rear view showing the operation state of the carriage feed mechanism, and FIGS. 9 (a) and 9 (b) are enlarged rear views showing the operation state of the carriage drive direction reversing device.
FIG. 10 is a diagram showing the cam shapes of the respective control cams and the yarn end operation timing, FIG. 11 is an electric block circuit diagram of the knitting machine, and FIG.
FIG. 13 is an explanatory view showing a yarn end operating state when the carriage is moving leftward, and FIGS. 14 (1) to (8) are operation explanatory diagrams of the knitting machine. In the figure, 1 is a needle bed, 2 is a knitting needle, 5 is a carriage, and 23a to 2a.
3c is a yarn feeder, 35 is a yarn feeder drive motor that constitutes a yarn feeder selecting device, A is a yarn feeder operating device, and Ya to Yc are knitting yarns.

Claims (2)

[Claims] 1. The needle bed (1) is moved every time the needle bed (1) having a large number of knitting needles (2) and the carriage (5) relatively moved by an interval related to the knitting needle arraying interval. The knitting yarn (Ya, Yb, Yc) is supplied to one knitting needle (2) of the knitting needles (2) or one knitting needle provided on the carriage (5) to knit a stitch. In the knitting machine, the carriage (5) has different knitting yarns (Ya, Yb, Y).
c) through which the knitting yarns (Ya, Yb, Yc) are arranged in series in the left-right direction and are arranged in series in the left-right direction, and are each movable together in the left-right direction and the up-down direction in order to supply the knitting yarn (Ya, Yb, Yc) to the knitting needle (2). Clues (23a, 23b, 23c) and their clues (23a, 23b, 2
3c) the knitting needle (2a) for supplying the knitting yarn (Ya, Yb, Yc) to the one knitting needle (2) is the one knitting needle (2)
To position it in place with respect to
23b, 23c) and a single yarn end selecting device (35) for integrally moving in the left-right direction, and the knitting yarns (Ya, Yb) of the yarn outlets (23a, 23b, 23c) selected by the yarn end selecting device (35). , Yc) for supplying the one knitting needle (2) to the plurality of yarn feeders (23a, 23b, 23c) in vertical and horizontal directions, and a yarn feeder operating device (A). And a yarn feeder for a knitting machine. 2. The yarn feeder selecting device sets a plurality of yarn feeders (23a, 23b, 23c) until the selected yarn feeder (23a, 23b, 23c) corresponds to a predetermined position for the one knitting needle (2). The yarn feeding device for a knitting machine according to claim 1, wherein the yarn feeding device is configured by a motor (35) for moving the lateral direction.