JPH02182950A - Fiber-stopping device in knitting machine - Google Patents

Abstract

PURPOSE:To prevent the breakage, etc., of the parts of a knitting machine by detecting feeders on the second holder of a carriage and stopping the slide of the carriage on the front side of the group of the first holders. CONSTITUTION:When a carriage 13 is slid from the outside of the first holder group toward a knitting operation region in a state wherein feeders 14 are accidentally held in the second holders 37 without being transferred from the second holders of the carriage 13 to the corresponding first holders 31, the feeders 14 on the second holders 37 of the carriage 13 are detected with a detecting switch through a detection lever 78 and the slide of the carriage is stopped on the front side of the first holder group.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a knitting yarn in which a plurality of yarn feeder bodies each holding a plurality of yarns are separately held at required positions outside a knitting section of a knitting machine body. The present invention relates to a knitting machine equipped with a restraining device and configured to selectively transfer each of the yarn feeder bodies to the carriage by sliding a carriage installed on a vA machine body to the yarn restraining device, and in particular, The present invention relates to the knitting yarn restraining device.

[Conventional technology]

In conventional knitting machines, the knitting yarn restraining device, which is placed outside the knitting section of the knitting machine main body, holds the yarn feeder in a removable manner and can be switched between a non-working position and a working position. The carriage is provided with a plurality of possible first holders, and the carriage is provided with a second holder that holds one yarn feeder body at an intermediate portion thereof, and a clamping member that can clamp the vicinity of the head of the yarn feeder body; The carriage is slid from the knitting section toward the yarn restraining device with one empty first holder of the first holder group with the yarn feeder removed and selectively placed in the operating position. As a result, the gripping member of the carriage releases the head of the yarn feeder body due to the sliding movement, and then the yarn feeder body on the second holder is transferred to the empty first holder. . Then, the first
After the holders are switched to the non-working position and all the first holders are switched to the non-working position, only the first holder holding the newly selected one yarn feeder body is switched to the working position, and then By sliding the carriage from the outside of the first holder group toward the first holder group,
A new yarn feeder on the selected first holder is adapted to be received by a second holder of the carriage.

By the way, in the above-mentioned apparatus, in order to perform set-up prior to knitting, the yarn feeder of a certain first holder is transferred to and held in the second holder of the carriage, and then the carriage is manually moved several times. Set-up is performed in a well-known manner by sliding the steps, and then, in order to move on to main knitting, the drive source is activated to automatically slide the carriage according to the knitting data, and then the carriage is moved to the second holder of the carriage. In order to exchange the held yarn feeder body with another yarn feeder body, the carriage is slid toward the knitting yarn restraining device, and the yarn feeder body of the second holder is replaced with the first holder that is to hold this yarn feeder body. When delivering to
If the first holder has been moved to a non-working position by an operator or the like in advance, the yarn feeder remains held in the second holder and moves to the first holder as the carriage slides.
When the carriage passes the position of the holder group and slides back, the first holder of the yarn feeder body newly selected for next use is moved to the operating position. The yarn feeder body held by the second holder from the beginning collides with the yarn feeder body of the holder, and as a result, each yarn feeder body and each holder may be damaged or damaged.

This invention was made to solve the above problem, and its purpose is to prevent the yarn feeder from being transferred from the second holder of the carriage to the corresponding first holder and being held in the second holder. When the carriage is slid from the outside of the first holder group toward the knitting section while the carriage is in the same state, the sliding movement of the carriage must be surely stopped before the first holder group to prevent damage to each part. It is an object of the present invention to provide a knitting yarn restraining device for a knitting machine that can prevent yarn from occurring.

[Means to solve the problem]

In order to achieve the above object, the present invention holds each yarn feeder body in a removable manner, and has an active position where the yarn feeder body can be transferred to a carriage, and an inactive position where the yarn feeder body is separated from the active position. A plurality of holders are movable to each other, and after the yarn feeder body on the carriage is received by the holder for holding it based on the carriage sliding from the knitting section side to the holder group side, the holder is moved to the carriage. is moved to the inactive position in conjunction with the subsequent sliding of the yarn feeder on the side of the holder group, and before transferring the yarn feeder body on the newly selected holder to the carriage, the knitting section is removed from the width of the holder group of the carriage. an actuating member that moves the holder to an operating position in conjunction with the sliding to the side, a drive source for sliding the carriage, and a carriage that slides from the outside of the holder group toward the knitting section side. When a yarn feeder is held in the carriage in advance, the carriage is controlled by a detection means for detecting a yarn feeder body held in advance and outputting a predetermined detection signal, and by controlling the drive source based on the detection signal from the detection means. A control means for stopping the holder before the holder group is provided.

[Effect]

In this invention, based on the slide of the carriage from the knitting section side to the holder group narrow, when the yarn feeder on the carriage is received by the holder for holding it, the carriage slides into the holder group narrow. In conjunction, the actuating member moves the holder to the inactive position. and,
Before the yarn feeder body on the newly selected holder is delivered to the carriage, the holder is moved to the operating position by the actuating member in conjunction with the sliding movement of the carriage from the holder group toward the knitting section.

On the other hand, if a yarn feeder body is held in advance in a carriage that slides from the outside of the holder group toward the knitting section side, this yarn feeder body is detected by the detection means, and a predetermined detection signal is input to the control means. be done.

Then, the control means controls the drive source to stop the carriage in front of the holder group.

〔Example〕

Hereinafter, one embodiment embodying the present invention will be described in detail with reference to the drawings.

As shown in FIG. 2, a pair of pillars 11a are protruded from both sides of the knitting machine main body 11, and an endless belt (not shown) is provided between the two branches 11a so as to be located above the knitting machine main body 11. A rail LLB is constructed so as to be able to go around the entire length of the knitting machine body 11. A connecting body 11c for connecting the endless belt and the carriage 13 is supported in a reciprocating manner on the lower side of the rail Ilb. A control box C is attached to the right end of the rail llb, and includes a motor M (see FIG. 1) as a drive source and a power transmission mechanism (not shown) for transmitting the power of the motor M to the endless belt. ing.

As shown in FIGS. 3 and 4, a large number of knitting needles 12 are arranged in a row in the knitting section of the knitting machine main body 11 so as to be movable back and forth, and a carriage 13 is mounted on the knitting machine main body 11 in the direction in which the knitting needles are arranged. The device is slidable along the On the other hand, the plurality of yarn feeder bodies 14 are formed in an elongated cylindrical shape, and one each of various knitting yarns Y is inserted into the hollow portion thereof. Then, with each yarn feeder body 14 attached to a predetermined position of the carriage 13, the carriage 13 is slid back and forth within the knitting section.
The knitting yarn Y is supplied to each knitting needle 12 via the yarn feeder 14, and the knitting needles 12 are moved back and forth to form required stitches.

A base 15 for replacing the yarn feeder is attached to the front part of the carriage 13 by a pair of attachment tools 16, and the base 15
A substantially semicircular recess 17 into which the head of the yarn feeder body 14 can be locked is formed at the center of the front edge. A clamping body 18 is connected to the front edge of the base 15 by a pair of links 19, 20 so as to be movable in parallel. And both links 19.20
With the operation of , as shown in FIG. 4, a part of the clamping body 18 comes into contact with the base 15 to prevent the yarn feeder body 14 from being pulled out by both 18 and 15, and the operating position shown in FIG. As shown in FIG. 3, the yarn feeder body 14 is moved away from the base 15 and switched to a retracted position that allows the yarn feeder body 14 to pass through. In addition, a spring (not shown) hung on the left link 19 causes the clamping body 18 to
is urged toward the operating position.

A knitting yarn restraining device is located on the left side of the knitting machine main body 11 so as to be located outside the knitting section! 22 is installed.

A guide plate 23 is provided on the upper surface of the knitting yarn restraining device 22 and is continuous with the upper surface of the knitting machine main body 11, and a guide rail 24 is provided at the front of the guide plate 23. A pair of inclined cam surfaces 24a and 24b are formed at both ends of the guide rail 24 and are inclined from rear to front in order to switch the clamping plate 18 between the operating position shown in FIG. 4 and the retracted position shown in FIG. A holding surface 24c for holding the holding plate 1B in the retracted position is formed between both inclined cam surfaces 24a and 24b.

On the other hand, an operating arm 25 is rotatably supported at its base end on the base 15 of the carriage 13, and its distal end is engaged with a retaining pin 26 that can be engaged with and detached from the guide rail 24 and a left link 19. A matching projection piece 27 is provided, respectively. When the carriage 13 is located within the knitting section of the knitting machine body 11, the engaging pin 26 of the operating arm 25 is separated from the guide rail 24, and the operating arm 25 is placed in the position shown in FIG. 18 is placed in the working position.

Also, when the carriage 13 is slid from the right side to the left side of the right side inclined cam surface 24a of the guide rail 24, and when it is slid from the left side to the right side of the left side inclined cam surface 24b, the operating arm 25 engagement bins 26 and each inclined cam surface 24a, 24
b, the operating arm 25 is rotated clockwise from the position shown in FIG. 4 to the position shown in FIG. The clamping body 18 is switched to the retracted position via.

As shown in FIGS. 3 to 6, the case 22a of the knitting yarn restraining device 22 has a plurality of (six in the embodiment) the knitting yarns Y and the yarn feeder body 14. 1 holder 31
is supported by a support shaft 32 so that it can be switched between an inactive position IPI where the knitting yarn Y is not transferred and exchanged, and a working position P2 where the knitting yarn Y is transferred and exchanged, and its support arm 31a passes through the opening 33 of the case 22a. and protrudes forward.

Each first holder 31 is biased toward the operating position P2 by a spring 34 wound around the support shaft 32.

As shown in FIGS. 3 and 5, each first holder 31 has a pair of movable holders that releasably hold the yarn feeder body 14 at two positions spaced apart in the longitudinal direction of the yarn feeder body 14. The pieces 35 and 36 are aligned and supported with respect to each of the first holders 31, and are each biased in the direction of holding the yarn feeder by a spring (not shown). On the other hand, a second holder 37 is attached to the right link 20 on the carriage 13.
is installed. This second holder 37 has a pair of movable holding pieces 38° that are assembled vertically with respect to the holding pieces 35 and 36 of each of the first holders 31 and that hold the yarn feeder body 14 in a detachable manner. 39 are supported and biased in the yarn feeding eye body holding direction by springs (not shown).

When the yarn feeder body is transferred between each first holder 31 and the second holder 37, the yarn feeder body 14
Holding piece 35.36 (
3B, 39) and the yarn feeder body 14, each of the holding pieces 35. 36
(38, 39), each holding piece 35, 36 (38, 39) is swung back in the yarn feeding eye body holding direction, and the holding piece 35, 36 (38, 39) As a result, the yarn feeder body 14 is held by each holder 31 (37).

Next, the actuating member A for switching each first holder 31 between the working position P2 and the non-working position P1 will be explained.

As shown in FIGS. 5 to 8, a partition wall 41 is disposed inside the case 22a of the knitting yarn restraining device 22, and the partition wall 41
At the rear of the case 22a are each first holder 31.
Six 1i magnets 42 corresponding to the number of 1i magnets 42 are supported in parallel by a support frame 43. The support frame 43 has six actuating pieces 44 that are movable by each electromagnet 42 between a standby position shown by a solid line in FIG. supported by spring 4
4a toward the suction position.

The partition wall 41 has a long shaft portion 45 corresponding to each of the actuating pieces 44.
A plurality of substantially U-shaped actuating shafts 45 each having a long shaft portion 45a and a short shaft portion 45b are inserted and supported so as to be movable and swingable in the axial direction, respectively, with the long shaft portion 45a as a pivot. The tip of the shaft portion 45a is biased in the direction of engagement with each of the actuating pieces 44. Further, the attractive force of the electromagnet 42 is set to be stronger than the biasing force of a spring 46 for the operating shaft 45, and the biasing force of the spring 46 is set to be stronger than the biasing force of the spring 44a for the operating piece 44. There is. and,
By moving each actuating piece 44 from the standby position to the suction position by the electromagnet 42, each actuating shaft 45 moves from a first position Pa shown by a solid line in FIG. 5 to a second position P shown by a two-dot chain line.
It is moved to b.

As shown in FIGS. 5, 6, and 11(a) to 11(c), each operating shaft 45 is provided on the inner surface of the front wall of the case 22a.
A plurality of lock levers 47 corresponding to
A protruding piece 48 that can be engaged with the locking arm 31b of each first holder 31 and a cam piece 49 that can be detached from the locking arm 31b of each first holder 31 are formed. Further, a retaining pin 51 is protruded from the middle part of each lock lever 47 and engages with an arcuate guide groove 50 provided in the front wall of the case 22a, and is normally held by the biasing force of a spring 52. The retaining pin 51 is engaged with one end of the guide groove 50, and each lock lever 47 is placed in the lock position shown by the two-point line 1 in FIGS. 11(a) and 11(c).

In this state, the cam piece 4 of the lock lever 47
By engaging the upright surface 49a at 9 with the locking arm 31b of the first holder 31, the first holder 31 is locked in the non-operating position P1 shown by the two-dot chain line in FIG. When the operating shaft 45 is swung from the second position Pb to the third position Pc shown in FIGS. 5 and 11, the lock lever is −
47 from the locked position to FIGS. 11(a) and 11(c).
As a result, the upright surface 49a of the cam piece 49 is disengaged from the locking arm 31b, and the first holder 31 is moved to the inactive position shown in FIG. 5 by the biasing force of the spring 34. It is switched from HP1 to the operating position P2.

As shown in FIGS. 5, 7, and 8(a) and (b), on the front surface of the partition wall 41, there is a first moving vi53 extending left and right along the arrangement direction of each first holder 31. The first
The guide pin 54 protruding from the movable plate 53 is engaged with the guide groove 55 provided in the partition wall 41 to allow movement from side to side.
It is normally held at the left end of movement by the biasing force of the spring 56.

The first movable plate 53 is formed with escape holes 57 that allow the swinging of each operating shaft 45, and a cam piece 58 corresponding to each operating shaft 45 is provided to protrude, thereby controlling the left and right movement of the first operating plate 53. Accordingly, each actuating shaft 45 is reciprocated between the first position Pa and the second position pb by the action of each cam piece 58.

Further, as shown in FIGS. 5, 7, and 10, a second movable plate 59 extending from side to side is attached to the rear surface of the partition wall 41 so as to be movable from side to side. A short shaft portion 45b of the shaft 45 is inserted. Then, due to the biasing force of a spring (not shown), the second actuating plate 59 is placed at the rightward movement end indicated by the solid line in FIG.
By moving left and right, each operating shaft 45
It swings back and forth between a first position Pa or a second position pb and a third position Pc about a.

As shown in FIGS. 6 to 8, a reset lever is provided at the right end of the partition wall 41 at its upper end that projects upwardly from the case 22a, and whose lower end engages with the guide pin 54 of the first movable plate 53. 60 is swingably supported at its intermediate portion and biased counterclockwise in FIG. 7 by a spring 61 having a weaker biasing force than the spring 56 for the first moving plate 53. The lower end of the first moving plate 53 is always connected to the guide pin 54.
, the reset lever 60 is held at the solid line position in FIG. is moved to the right.

As shown in FIGS. 6, 7 and 10, the partition wall 4
1 has an upper end protruding upward from the case 22a, and a driven protrusion 59a of the second moving plate 59 on the side edge of the middle part.
A set lever 62 having a cam portion 62a that engages with the second movable plate 59 is swingably supported at its intermediate portion.
A spring 63 having a weaker biasing force than the spring (as shown) for
is biased clockwise in FIG. and,
By swinging the set lever 62 counterclockwise from the solid line position in FIG. 10 to the two-dot chain line position in the same figure,
The second moving plate 59 is moved to the left.

As shown in FIGS. 5 to 7 and 9, between each of the levers 60 and 62, six switching levers 64 corresponding to each first holder 31 are provided on the partition wall 41 at their intermediate portions. The upper end of the case 22
a, and the lower end passes through the opening 41a of the partition wall 41, and the release arm 31 of each first holder 31
It protrudes below c. The lower edge of the switching lever 64 is always engaged with the inner edge of the opening 41a by the spring 65, and the switching lever 64 is placed at the solid line position in FIG. By rotating clockwise, the lower end of the release arm 31c
, the first holder 31 is switched from the working position P2 to the non-working position P1.

On the other hand, as shown in FIGS. 3 and 12, an operating lever 66 is attached to the lower surface of the carriage 13 at its upper end.
The base plate 13 of the carriage 13 is rotatably supported by 7.
It protrudes downward through an opening 68 provided in a. The operating lever 66 is always pushed by the biasing force of the spring 69.
One side edge of the operating lever 66 is engaged with the inner edge of the opening 68.
The rotation in the counterclockwise direction in FIG. 12 is restricted and the carriage 13 is placed at the solid line position in the figure, and in this state, the carriage 13 is slid leftward from the knitting section toward the first group of holders 31. When the lower end of the operating lever 66 is connected to each of the levers 60.
62, 64 are sequentially engaged with the upper ends of each lever 60, 6.
2.64 are sequentially rotated counterclockwise.

Further, when the carriage 13 is slid to the right from the outside of the first holder 31 group toward the knitting section with the operating lever 66 disposed at the solid line position, each of the levers 60.6
2.64, the operating lever 66 is retracted and rotated toward the chain line position in FIG. 12, and its lower end enters the opening 68.

In this embodiment, the electromagnet 421 operating axis 45° is the first.
Second moving plate 53.59. The actuating member A is composed of the reset lever 60, the set lever 62, the switching lever 64, and the like.

Next, the stopping means will be explained. As shown in FIGS. 3, 13, and 14 (a) to (c), an oval-shaped fitting 71 is attached to the left outer surface of the case 22a with a pair of screws 72. On the rear side surface of the support plate portion 71a, a stop lever 73, which has a stop piece 73a bent at one end and a follower piece 73b bent at the other end, is rotatably supported at an intermediate portion thereof. has been done. The stop lever 73 is normally moved by a spring (not shown) as shown in FIG. 14(a).
) in the counterclockwise direction and is placed in the retracted position shown in the figure, and its stop piece 73a is placed below the movement locus of the engaging pin 26 of the actuating arm 25. or,
When the stop lever 73 is rotated clockwise toward the stop position shown in FIG. 14(b), the stop piece 73a is placed on the movement trajectory of the engagement pin 26.

An abnormality detection switch 74 made of a microswitch is attached to the support plate portion 71a of the metal fitting 71.

Furthermore, for installation, a cover plate 75 is attached to the metal fitting 71 and faces the supporting plate part Via at a predetermined distance, so that both 71a
, 75, a support shaft 76 and a connecting piece 77 are installed.

A detection lever 78 is rotatably supported by the support shaft 76 at its intermediate plate-shaped portion, and the carriage 13 is attached to the peripheral edge of the detection lever 78 .
A detection piece 78a that can be engaged and detached from the upper yarn feeder body 14, and an actuation piece 78b that turns on and off the abnormality detection switch 74.
The spring hook is integrally formed with a piece 78c, and a cam 78d that engages with the follower piece 73b is formed.

Further, the spring 79 wound around the support shaft 76 is formed with a pair of locking pieces 79a and 79b that extend to intersect with each other. As shown in FIG. 14(a), one locking piece 79a is always engaged with the connecting piece 77 from above, and the other locking piece 79b is engaged with the spring hook of the detection lever 78. 78c from below and extends below the connection piece 77, the detection lever 78 is placed in the standby position shown in the same figure, and the detection lever 78a detects the movement trajectory of the yarn feeder body 14 on the carriage 13. is projected upwards.

Then, with the yarn feeder body 14 held by the carriage 13, the carriage 13 is moved from the knitting section to the first holder 31.
When the yarn feeder body 14 and the detection piece 78a are engaged with each other, the detection lever 78 is moved against the spring 79 as shown in FIG. The cam 78d is rotated counterclockwise, the cam 78d is separated from the follower piece 73b, the stop lever 73 is held at the standby position, and the actuating piece 78
b is retracted downward, and the abnormality detection switch 74 is held in the OFF state.

Further, in a state where the yarn feeder body 14 is held on the carriage 13,
When the carriage 13 is slid to the right from the outside of the first holder 31 group toward the knitting section, FIGS.
), due to the engagement between the yarn feeder body 14 and the detection piece 78a, the detection lever 78 is rotated clockwise in the figure against the force of the spring 79, and the abnormality detection switch 74 is turned on by the operating piece 78b. Immediately after the ON operation, the cam 78d and the follower piece 73b are engaged,
The stop lever 73 is switched from the retracted position to the stop position. In this embodiment, the detection lever 78 and the abnormality detection switch 74 constitute a detection means.

A pair of slide switches Sr and St for setting the knitting section of the knitting machine main body 11 are installed on the front surface of the control box C shown in FIGS. 2 and 15, and also correspond to the yarn restraining device 22. An exchange position detection switch Se for setting the yarn feeding body exchange position is installed. Further, in the control box C, there are carriage turn position detection sensors Tr and T, which are made of Hall elements whose positions can be adjusted to the left and right, respectively, in accordance with the sliding operation of the respective switches Sr, Sl, and Se.
I and Te are installed respectively.

On the other hand, a pair of pulleys 80 and 81 are rotatably disposed within the control box C, and an endless belt 82 is wound between the two pulleys 80 and 81 so as to be able to go around. Further, a permanent magnet 83 is attached to the lower circumferential portion of the endless belt 82 via a fitting 84. When the carriage 13 is slid by the motor M, the power of the motor M is transmitted to the belt 82 via the reduction gear mechanism (the path shown) and one of the pulleys 80, and the permanent magnet 83 on the belt 82 moves towards the carriage. It is moved left and right in synchronization with 13. Moreover, this permanent magnet 83 is connected to each of the sensors Tr and TI based on its left and right movement.
, Tf3, each sensor Tr, TI, Te outputs a predetermined electrical signal.

On the other hand, the knitting machine of this embodiment has a control section consisting of a microcomputer (hereinafter referred to as microcomputer) 85 shown in FIG.
The output signal from T 1 + Te, the ON signal of the abnormality detection switch 74, and the synchronization signal output from the encoder E in accordance with the rotation of the motor M are input, respectively. Based on the above input signals, the microcomputer 85 controls the rotation of the motor M via the motor drive circuit 86 in accordance with a predetermined control program.

Next, the knitting yarn restraining bag W22 of the knitting machine configured as above is explained.
Explain the effect of

As shown in FIG. 4, at the start of the knitting operation, one yarn feeder body 14 is held between the base 15 of the carriage 13 and the clamping body 18 and by the second holder 37. and,
The motor M is rotated in a predetermined direction by the microcomputer 85,
When the carriage 13 is slid to the left, the yarn feeder body 14
A predetermined knitting yarn Y is supplied to each knitting needle 12 in the knitting section, and an eyelet is formed by each knitting needle 12.

During this time, when a thread exchange signal is input from the outside to the microcomputer 85, the output signal from the left carriage turn position detection sensor Tl is invalidated, and the carriage 13 is exchanged without turning back at the left end position of the knitting section. The carriage 13 continues to slide to the left until the permanent magnet 83 faces the position detection sensor Se. As the carriage 13 slides to the left, the bin 26 of the actuating arm 25 moves onto the guide rail 24.
When it engages with the holding surface 24c via the inclined cam surface 24a, the holding body 18 moves from the holding position shown in FIG. 4 to the retracted position shown in FIG. 13 via each link 19, 20 based on the engagement. The yarn feeder body 1 is made up of the clamping body 18 and the base 15.
4 is released.

When the carriage 13 subsequently slides to the left, the yarn feeder body 14 on the second holder 37 of the carriage 13 is transferred to one empty first holder 31 that has been placed in advance at the operating position P2.

When the actuating lever 66 engages the reset lever 60 due to the subsequent leftward sliding of the carriage 13, as is clear from FIGS. 7 and 8(a) and (b), The first moving plate 53 is moved to the right, and by the action of the cam piece 58 on the first moving temporary 53, each operating shaft 45 is moved simultaneously from the first position Pa to the second position pb shown in FIG. , Accordingly, due to the biasing force of the spring 44a,
Each operating piece 44 is swung together to the suction position shown in FIG.

Next, each electromagnet 42 is selectively energized based on predetermined color arrangement data, so that a specific actuating piece 4
4 is held in the suction position. And the carriage 13
When the operating lever 66 passes the reset lever 60,
The first movable plate 53 is moved back to the left by the biasing force of the spring 56, and all the other operating shafts 45 except the specific operating shaft 45 are returned to the first position Pa.

Thereafter, as the carriage 13 slides leftward, the operating lever 66 is sequentially engaged with each switching lever 64, and when each switching lever 64 is swung counterclockwise in FIG. and the release arm 31 of each first holder 31
c, each first holder 31 moves to the operating position P.
2 to the inactive position P1. With this switching, as shown in FIG. 11, after the lock lever 47 is reciprocated between the two-dot chain line position and the solid line position in the same figure, the upright surface 49a of the cam piece 49 is 31b, all the first holders 31 are locked in the inactive position WPI.

Then, as the carriage 13 continues to slide leftward, the center lever 62 is swung counterclockwise in FIG. Accordingly, each operating shaft 45 has a long shaft portion 45.
It is rotated counterclockwise around point a from the first position Pa or the second position Hpb shown in FIG. 10 to the third position Pc. Here, as shown in FIG. 11, the operating shaft 4 is placed at the second position pb by the action of the electromagnet 42.
5 and the protruding piece 48 of one specific lock lever 47, the specific lock lever 47 moves to the second position shown in FIG.
The cam piece 49 is reciprocated between the dotted chain line position and the solid line position, and the cam piece 49 separates from the locking arm 31b during the forward movement. Thereby, the specific first holder 31 is selectively switched from the inactive position P1 to the active position P2 by the biasing force of the spring 34.

Further, since the operating shaft 45 held at the first position Pa is spaced apart from the protrusion 48 of the lock lever 47, the arrangement position of the other first holder 31 is switched by the swinging of the operating shaft 45. Never.

Next, the rotating direction of the motor M is reversed by the microcomputer 85, so that the sliding direction of the carriage 13 is reversed, and the carriage 13 is slid rightward from the outside of the first holder 31 group toward the knitting section. Then, the new yarn feeder body 14 on the first holder 31 previously placed at the action position P2 is transferred to the second holder 37 of the carriage 13, and the new knitting yarn inserted through the yarn feeder body 14 is transferred to the second holder 37 of the carriage 13. Y is supplied to each knitting needle 12 to perform knitting.

By the way, during this formation, the second holder 3 of the carriage 13
When an operator's hand accidentally touches the first holder 31 at the working position P2 corresponding to the yarn feeder body 14 held at the thread feeder 7, the first holder 31 is moved to the non-working position Pi, In this state, when the carriage 13 is slid to the left from the knitting section side toward the first holder 31 group in order to exchange the knitting yarn, as shown in FIG. The yarn feeder body 14 held on the second holder 37 passes through the corresponding position of the first holder 31 (which is erroneously placed at the inactive position P1) and reaches the detection piece 78a of the detection lever 78. engage. As a result, the detection lever 78 is retracted and rotated counterclockwise in the figure.
The cam 78d separates from the follower piece 73b of the stop lever 73. Therefore, in this case, the stop lever 73 is not switched to the stop position, so the carriage 13 can be slid to the left as it is.

In this state, the carriage 13 is attached to the first holder 31.
When it turns around from the left outer side of the group and slides to the right, it becomes as shown in Fig. 14 (
As shown in a) and (b), the detection lever 78 is rotated clockwise due to the engagement of the yarn feeder body 14 and the detection piece 78a, and the abnormality detection switch 7 is activated by the actuation piece 78b.
4 is turned on. In response to this, the microcomputer 85 stops the rotation of the motor M and stops the carriage 13 in front of the first holder 31 group.

On the other hand, immediately after the abnormality detection switch 74 is turned on, the stop lever 73 is switched from the retracted position to the stop position due to the engagement between the cam 78d of the detection lever 78 and the follower piece 73b, and the stop piece 73a is switched from the retracted position to the stop position. It is projected onto the movement trajectory of the engagement pin 26. Therefore, even if the carriage 13 tries to slide rightward due to inertia after the motor M stops, the engagement pin 26 is engaged with the stop piece 73a, and the sliding is forcibly stopped.

Therefore, the yarn feeder body 14 on the carriage 13 moves to the first holder 3 which is newly selected and arranged at the working position P2 for next use.
1 or the yarn feeder body 14 on its holder 31, thereby preventing the possibility that the yarn feeder body 14 would be damaged or damaged.

On the other hand, in order to return to the normal state from the above state, the stopped carriage 13 is manually slid to the outside of the first holder 31 group, and the engagement pin 26 of the actuation arm 25 is moved to the stop position of the stop lever 73. It is separated from the piece 73a. Then, the stop lever 73 and the detection lever 78 return to their original positions, and the abnormality detection switch 74 is turned off. Further, the yarn feeder body 14 held in the second holder 37 of the carriage 13 is manually removed from the second holder 37, and the yarn feeder body 14 is moved to the corresponding first holder 31 (inactive position P1 by mistake). (located in ). After the above processing, the carriage 13 may be slid to the knitting section side via the first holder 31 group.

Further, in this embodiment, a spring 79 for the detection lever 78 is used.
Since the urging force of is set smaller than the holding force of the second holder 37 against the yarn feeder body 14, when the second holder 37 is held,
The yarn feeder body 14 never separates from the second holder 37.

〔Effect of the invention〕

As described in detail above, the present invention provides a method in which when the yarn feeder body happens to be held in the second holder without being transferred from the second holder of the carriage to the corresponding first holder, the carriage is transferred to the first holder. When the carriage is slid toward the knitting section from the outside of the group, by detecting the yarn feeder on the second holder of the carriage, the sliding movement of the carriage is reliably stopped before the first holder group, It exhibits an excellent effect of being able to prevent damage to various parts.

[Brief explanation of the drawing]

Fig. 1 is a block diagram showing the control section of a knitting machine embodying this invention, Fig. 2 is a perspective view showing the entire knitting machine, Fig. 3 is a side view of the knitting machine, and Fig. 4 is a scaled-down view of the knitting machine. 5 is a side sectional view of the knitting yarn restraining device, FIG. 6 is the same (front view, FIG. 7 is a front view showing the operating member, and FIG. 8(a) is a side sectional view of the knitting yarn restraining device. Fig. 8(b) is an enlarged plan view showing the operating state of the shaft, Fig. 9 is an enlarged front view showing the operating state of the switching lever, and Fig. 10 shows the operation of the second moving plate and the operating shaft. FIG. 11(a) is an enlarged front view showing the operating state of the lock lever, FIG. 11(b) is an enlarged side view, and FIG. 11(c) is an enlarged plan view. 12
Figure 13 is an enlarged front view showing the actuation lever on the carriage.
The figure is a partial enlarged plan view of the knitting machine showing the operating state of the stop lever, FIGS. 14(a), (b), and (c) are enlarged front views showing the operating state of the stop lever, and FIG. 15 is the control box. The external view, FIG. 16, is a perspective view showing a part of the internal structure of the control box. 11...knitting machine body, 13...carriage, 14...
Yarn feeder body, 22... knitting yarn restraining device, 31... first holder 42... electromagnet, 45... operating shaft, 53...
- First moving plate, 59... Second moving plate, 60... Reset lever, 62... Set lever - 164... Switching lever (the above 42° 45.53.59, 60.62.
The actuating member A is constituted by 64, etc.), 74, etc.
...Abnormality detection switch, 78...Detection lever (7 above)
4.78 constitutes the detection means), 85.
...Microcomputer as control means, Yu, Y...knitting yarn.

Claims (1)

[Scope of Claims] 1 A plurality of yarn feeder bodies (1
4) is provided with a knitting yarn restraining device (22) for separately restraining the knitting yarn restraining devices (22), and by sliding a carriage (13) installed on the knitting machine main body (11) to the knitting yarn restraining device (22). In a knitting machine in which each yarn feeder body (14) is selectively delivered to a carriage, each of the yarn feeder bodies (14) is held removably separately, and the yarn feeder body (14) is transferred to a carriage. (13), a plurality of holders (31) movable between a working position where transfer is possible to the working position and a non-working position spaced apart from the working position;
) After the yarn feeder body (14) on the carriage (13) is received by the holder (31) for holding it, the holder (31) is moved to the carriage (1).
3) to the inactive position in conjunction with the subsequent sliding of the yarn feeder (14) on the newly selected holder (31) to the carriage (13).
) of the carriage (13) before transferring it to the holder (
31) An operating member (A) that moves the holder (31) to the operating position in conjunction with sliding from the group side to the knitting section side, and a drive source (M) for sliding the carriage (13).
When the carriage (13) is slid from the outside of the holder (31) group toward the knitting section side, the carriage (13)
) detecting means (74, 78) that detects the yarn feeder (14) held in advance in the yarn feeder body (14) and outputs a predetermined detection signal; (M), the carriage (1
3) A control means (85) for stopping the yarn in front of the group of holders (31).