JP2013060679A - Flat knitting machine including compound needle and method for controlling slider of the flat knitting machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a flat knitting machine including a compound needle and a method for controlling a slider of the flat knitting machine, which can prevent an old stitch from dropping from a tongue into a hook and can prevent a knitting yarn to be captured in the hook for knitting a new stitch from being caught on the tongue during knitting.SOLUTION: When a needle driving butt 22 follows a locus 22t, and a hook 12a is thereby advanced to a needle bed gap 2, a tongue 13a opens the hook opening of the hook 12a, so that an old stitch which has been formed in the hook 12a is transferred to the tongue 13a and cleared. When the hook 12a is retracted toward a needle bed 3 or 4 side, a knitting yarn is fed from a yarn feeder 7a so as to pass within a range through which the hook opening of the hook 12a passes and is captured in the hook 12a. A movable cam mechanism 40 provided in a slider cam 36 switches between action and inaction of a control portion 41a of a cam member 41 on a slider driving butt 23 near a center line 7c and can thereby produce a difference d in the position of the tongue 13a.

Description

  The present invention relates to a flat knitting machine including a combination of a needle body and a slider, and a compound needle for knitting a knitted fabric by opening and closing a hook of the needle body with a tongue of the slider, and a slider control method for the flat knitting machine.

  Conventionally, a compound needle can be used as a knitting needle in a flat knitting machine having needle beds at the front and rear (see, for example, Patent Document 1). FIG. 7 shows a simplified state of knitting the knitted fabric with the flat knitting machine 1. Needle grooves 5 are formed in the pair of needle beds 3 and 4 facing each other with the tooth mouth 2 interposed therebetween. The needle grooves 5 are formed so as to be inclined so as to be higher on the side of the tooth opening 2 and lower when they are separated from the tooth opening 2, and are aligned in a direction perpendicular to the paper surface. A needle plate or a sinker 5a is provided between the needle grooves 5, and a wire 6 serving as a top tooth penetrates in the direction perpendicular to the paper surface near the tip of the sinker 5a. Above the mouth 2, the yarn feeder 7 moves in a direction perpendicular to the paper surface and feeds the knitting yarn 8 from the yarn feeder 7 a. In the flat knitting machine 1, knitted fabrics having different structures can be knitted by properly using the needle beds 3 and 4, and (a) shows a case where the flat knitted fabric 9 is knitted using only one needle bed 3 ( b) shows the case where the rib knitted fabric 10 and the like are knitted using both the needle beds 3 and 4, respectively.

  Each needle groove 5 accommodates a compound needle 11 as a knitting needle. In the compound needle 11, a needle body 12 and a slider 13 are combined. A slider groove 12b is also formed in the needle body 12 having a hook 12a at the head. The slider 13 is partially accommodated in the slider groove 12b, slides and moves with respect to the needle body 12, and opens and closes the hook of the hook 12a with a tongue 13a at the tip.

  When the flat knitted fabric 9 shown in (a) is knitted, it is supplied from the yarn feeder 7a when the hook 12a is advanced from the needle bed 3 and then pulled into the needle bed 3 only from one needle bed 3. The knitting yarn 8 passing through the range through which the hook of the hook 12a passes is captured in the hook 12a. The old stitch 9a is cleared from the hook 12a when the hook 12a is advanced to the tooth opening 2, and is moved and locked to the tongue 13a of the slider 13 waiting on the needle bed 3 side. In the case of knitting the rib knitted fabric 10 shown in (b), for example, the hooks 12a are alternately advanced from both the needle beds 3 and 4 into the tooth opening 2, the knitting yarn 8 is captured, and the old stitch 10a that has been cleared is obtained. Is moved to the tongue 13a.

  With the old stitches 9a and 10a being locked by the tongue 13a, the hook 12a is further drawn into the needle beds 3 and 4, and the hook 12a is closed with the tongue 13a, and then the needle body 12 and the slider 13 are moved. If the needle stitches 3 and 4 are further retracted, the old stitches 9a and 10a are knocked over to become a flat knitted fabric 9 or a rib knitted fabric 10 and hang down to the mouth 2 and a new stitch is formed on the closed hook 12a. Is done. The advancement and retraction of the needle body 12 and the slider 13 with respect to the tooth opening 2 is mounted on a carriage that reciprocates in a direction perpendicular to the paper surface, and is driven by a cam mechanism that faces each needle bed 3 and 4. The yarn feeder 7 moves in synchronization with the carriage. By repeating the operations of the carriage and the yarn feeder 7, the flat knitted fabric 9 and the rib knitted fabric 10 are knitted.

Japanese Patent No. 3085657

  In order to capture the knitting yarn 8 to the hook 12a drawn into the needle bed 3 and 4 after the advancement into the tooth mouth 2 and knock over the old stitches 9a and 10a to form the new stitch reliably, the knitting yarn 8 Needs to be fed so that it does not catch on the tongue 13a. Further, when the yarn is fed, the old stitches 9a and 10a need to be locked to the tongue 13a. As shown in FIG. 7A, the flat knitted fabric 9 knitted using the needle bed 3 on one side hangs down at a position closer to the needle bed 3 than the vicinity of the center of the tooth opening 2. As shown in FIG. 7B, the rib knitted fabric 10 knitted using the needle beds 3 and 4 on both sides hangs around the center of the tooth opening 2. When knitting is completed for one course of the flat knitted fabric 9 or the rib knitted fabric 10, the knitting yarn 8 is connected to the yarn feeder 7 that has come out of the knitting width from the end of the knitting width to become a crossover yarn. . This transition yarn becomes the knitting yarn 8 which is supplied when the carriage is reversed and the first stitch is formed with the end side of the previous course as the start side. The crossover yarns connected to the yarn feeder 7 are folded back starting from the old stitches 9a and 10a locked to the tongue 13a. In the flat knitted fabric 9, the position close to the needle bed 3 and in the rib knitted fabric 10 the tooth mouth Pass through the position near the center of 2. The difference in the position through which the knitting yarn 8 passes is not only the end of the knitting width, but also the end of the section where intarsia knitting is performed within the knitting width, or the yarn feeder 7 is kicked back to create a new stitch Also occurs when knitting.

  At the standby position of the slider 13 as shown in FIG. 7, in the flat knitted fabric 9 of (a), the knitting yarn 8 can be reliably captured by the hook 12a while the old stitch 9a is securely locked by the tongue 13a. it can. In the rib knitted fabric 10 of (b), the position of the knitting yarn 8 to be fed is farther from the tongue 13a than in the case of the flat knitted fabric 9, so that the knitting yarn 8 can be more reliably captured on the hook 12a. . However, the locking of the old stitch 10a of the rib knitted fabric 10 depending on the center of the tooth mouth 2 is performed at a higher position on the tooth mouth 2 side than the old stitch 9a of the flat knitted fabric 9. The old stitch 10a is locked in the vicinity of the tip position of the tongue 13a. Since there is no room near the tip position of the tongue 13a, the old stitch 10a may fall into the hook 12a again depending on conditions such as a high knitting speed. In order to prevent the cleared old stitch from falling into the hook 12a, it is conceivable to adjust the tongue 13a so that the position of the tongue 13a is advanced toward the tooth opening 2 side. However, when the flat knitted fabric 9 or the like is knitted, the knitting yarn 8 may be caught on the tongue 13a that has advanced to the side of the mouth 2 and it may be difficult to capture the hook 12a.

  It is an object of the present invention to make it difficult for an old stitch to fall from a tongue into a hook during knit knitting, and to prevent a knitting yarn captured in the hook to form a new stitch from being caught on the tongue. A flat knitting machine including a needle and a slider control method of the flat knitting machine are provided.

The present invention is a combination of a needle body having a hook at the tip and a slider that slides relative to the needle body and opens and closes the hook with a tongue at the tip. The needle drive butt of the needle body and the slider drive bat of the slider In a flat knitting machine equipped with a compound needle that captures the knitting yarn to the hook when the hook is advanced into the tooth opening and then pulled into the needle bed after being driven by the cam system,
In knit knitting, the path of the knit route through which the slider-driven bat passes passes through the section corresponding to when the knitting yarn is captured by the hook, and the slider position is locked to the tongue by the action of the slider-driven bat A movable position that can be controlled to a high position in the direction of advancement to the mouth where the stitch is difficult to fall into the hook, or a low position in the direction of retreating from the mouth that makes it difficult for the yarn fed from the yarn feeder to be caught by the tongue. A flat knitting machine including a compound needle including a cam mechanism.

  Further, in the present invention, the movable cam mechanism switches the position of the slider in the section corresponding to when the knitting yarn is captured by the hook in two steps by controlling the action and non-action on the slider drive bat. It includes a cam member that is possible.

Further, in the present invention, the cam member is in a lever shape, and is provided with a control unit for controlling the slider driving bat at one end, and a driving unit for receiving control driving at the other end. Is supported so that it can swing and displace in the middle of
The movable cam mechanism is
An actuator that generates a driving force to swing and displace the cam member;
A pressing member that presses the drive portion of the cam member in the direction of swinging displacement with the output of the actuator;
It is characterized by including.

Further, in the present invention, the cam system is configured such that both sides of the center line are symmetrical so as to perform the same action even if the mounted carriage reciprocates.
The movable cam mechanism is
A set of the actuator and the pressing member disposed near a center line;
A pair of cam members respectively disposed on both sides of the center line so that a position near the center line is the drive unit and a position far from the control line is the control unit;
The drive portions of the pair of cam members are commonly controlled by a set of actuators and pressing members.
It is characterized by that.

Furthermore, the present invention has at least a pair of needle beds facing each other across the mouth, and in the needle grooves arranged in parallel to the needle beds,
A needle body having a hook at the tip and a slider that slides and moves relative to the needle body and opens and closes the hook with a tongue at the tip are combined with each other, and the needle drive butt of the needle body and the slider drive butt of the slider are combined into a cam system. In the slider control method of a flat knitting machine provided with a compound needle that captures the knitting yarn to the hook when the hook is advanced into the tooth opening and then pulled into the needle bed.
In knit knitting, a cam is provided in the section of the knit route trajectory through which the slider drive bat passes to catch the knitting yarn with the hook, and the position of the slider is adjusted by the action of the cam on the slider drive bat. , High position in the direction where the old stitch locked to the tongue is difficult to fall into the hook, or low position in the direction where the knitting yarn fed from the yarn feeder is retracted from the mouth where it is difficult to get caught in the tongue This is a slider control method for a flat knitting machine, characterized in that control is performed so as to change to

In the present invention, the change by controlling the position of the slider is performed according to the needle selection state,
Whether the position at which the knitting yarn, which is knitted from the yarn feeder and extends to the knitted fabric depending on the mouth, is connected to the knitted fabric is closer to the needle bed provided with the composite needle for capturing the knitting yarn than the middle of the mouth The action on the slider drive bat via the cam is changed to change to the low position or the high position, respectively.
It is characterized by that.

  According to the present invention, when the movable cam mechanism captures the knitting yarn with the hook, the position of the slider that locks the old stitch on the tongue is lowered, and the old stitch falls into the hook at a high position in the direction of advancement to the tooth opening. It is possible to perform control to change whether the knitting yarn is difficult to be caught on the tongue at a low position in the direction of retreating from the tooth opening. Therefore, when forming the stitch, the old stitch is unlikely to fall from the tongue into the hook according to the structure of the knitted fabric to be knitted, and the knitting yarn captured in the hook to form the new stitch is less likely to be caught on the tongue. It becomes possible.

  According to the present invention, the movable cam mechanism can be simplified in configuration because the position of the slider only needs to be switched in two stages.

  Further, according to the present invention, the position of the slider when the knitting yarn is captured by the hook by adding a lever-shaped cam member, an actuator, and a pressing member to a portion of the cam system that acts on the slider driving bat. Can be controlled.

  Further, according to the present invention, the cam system including the movable cam mechanism is formed so as to be symmetric on both sides of the center line so that the same operation is performed even when the carriage carrying the cam system reciprocates. Since the actuator and the pressing member are arranged near the center line, the cam member on both sides can be driven simultaneously as a pair, and the position of the slider can be controlled similarly regardless of the carriage traveling direction. .

  Furthermore, according to the present invention, when a knitted fabric is knitted, a slider by a cam is used depending on the structure of the knitted fabric, when a needle bed on one side of the mouth is used and when using a needle bed on both sides. It is possible to control the position of the slider to be changed by the action on the driving bat, and to continue knitting of the knitted fabric reliably.

  Further, according to the present invention, it is possible to perform control to change the position of the slider by changing the action on the slider drive bat via the cam according to the needle selection state.

FIG. 1 is a side view showing the configuration of the main part of the compound needle 11 and a cam layout showing the configuration of the main part of the cam system 30 used in the flat knitting machine 21 as one embodiment of the present invention. FIG. 2 is a partial cam layout showing the operation of the movable cam mechanism 40 of FIG. FIG. 3 is a simplified side view showing the operation of the flat knitting machine 21 of FIG. FIG. 4 is a side view showing a schematic configuration of the movable cam mechanism 40 of FIG. FIG. 5 is a plan view, a front view, and a right side view showing configurations of the pressing member 42 and the cam member 41 included in the movable cam mechanism 40 of FIG. 6 is a plan view, a front view, a cross-sectional view and a right side view of the slider cam 36 provided with the movable cam mechanism 40 of FIG. FIG. 7 is a simplified side view showing the operation of the compound needle 11 in the conventional flat knitting machine 1.

  Hereinafter, the configuration and operation of the flat knitting machine 21 as an embodiment of the present invention will be described with reference to FIGS. 1 to 6 with the same reference numerals given to the portions corresponding to FIG. To do. In the explanation of each figure, there is a case where it is explained by using a symbol which is not present in the drawing but is present in the figure explained earlier.

  FIG. 1A shows the configuration of the main part of the compound needle 11. The needle body 12 and the slider 13 of the compound needle 11 are provided with a needle drive butt 22 and a slider drive butt 23, respectively. However, the needle drive butt 22 is provided in a needle jack 24 coupled to the tail portion of the needle body 12. The needle drive butt 22 and the slider drive butt 23 are provided on the tail side of the compound needle 11 and controlled by the action of a needle selection member (not shown) to project from the needle groove surface.

  FIG. 1B shows a configuration of a main part of a cam system 30 mounted on a carriage used in the flat knitting machine 21 as an embodiment of the present invention. The cam system 30 is disposed on a carriage substrate 31 facing the needle beds 3 and 4 and includes a needle raising cam 32, a center cam 33, degree cams 34 and 35, a slider cam 36, and the like. The cam system 30 is arranged symmetrically with respect to the center line 30c, and can make the action on the needle drive butt 22 and the slider drive butt 23 equivalent when the carriage moves left and right. However, the mountain cams 34 and 35 are controlled so that their positions are changed by sliding along the inclined guide path according to the traveling direction of the carriage. The leading side of the mountain cams 34 and 35 is retracted to the slider cam 36 side. The trailing side of the degree mountain cams 34 and 35 moves to the needle raising cam 32 side according to the degree value indicating the size of the loop formed as the new stitch.

  For example, when the cam system 30 is in the traveling direction of the carriage that moves to the left in the figure, the needle drive butt 22 is a needle formed between the needle raising cam 32, the center cam 33, and the angle cams 34 and 35. The guide route 37 guides along the trajectory 22t. The slider drive butt 23 is guided along a locus 23t by a slider guide path 38 provided in the slider cam 36.

  The yarn feeder 7 runs in synchronism with the carriage so that the center line 7c of the yarn feeder 7a maintains a phase separated from the center line 30c of the cam system 30 toward the trailing side. The slider 13 is prevented from approaching the side of the tooth opening 2 according to the needle body 12 until the vicinity of the center line 30c of the cam system 30 by the restriction by the slider guide path 38, and waits in the needle beds 3 and 4. When the needle drive butt 22 follows the trajectory 22t and advances the hook 12a to the tooth mouth 2, the tongue 13a opens the hook of the hook 12a, and the old stitch formed and locked to the hook 12a in the previous knitting course is The transition to the tongue 13a is cleared. At the center line 30c, the hook 12a advances most into the tooth opening 2, and thereafter is pulled into the needle beds 3 and 4 side. On the subsequent side from the center line 30c, the knitting yarn is supplied from the yarn feeder 7a through the range through which the hook of the hook 12a passes at the phase of the center line 7c of the yarn feeder 7.

  In this embodiment, the movable cam mechanism 40 is provided on the slider cam 36. The movable cam mechanism 40 includes a cam member 41 that performs an action of switching a part of the locus 23t in a section corresponding to the vicinity of the phase of the center line 7c of the yarn feeder 7 in the slider guide path 38 of the slider cam 36. The cam member 41 has a control part 41 a at one end, and switches between the action and non-action of the control part 41 a on the slider drive butt 23 by swinging displacement, changes the position of the slider drive butt 23, and changes the position of the slider 13. Is controlled so as to produce a difference d. The swinging displacement of the cam member 41 is caused by the pressing member 42 pressing against the drive unit 41b at the other end.

  FIG. 2 shows the operation of the movable cam mechanism 40 of FIG. The cam member 41 is switched so that the control unit 41a does not act on the slider drive bat 23 passing the trajectory 23t in (a) and acts on (b). The cam member 41 has a lever shape, and a drive portion 41b is provided at the other end. The slider cam 36 is provided with an accommodation recess 36 a for accommodating the cam member 41 on the back side of the surface facing the needle beds 3 and 4. In the housing recess 36a of the slider cam 36, a boss 36b that supports the cam member 41 so as to be swingable and displaceable around the support axis 41c is provided between the control unit 41a and the drive unit 41b. A pressing member 42 and a torque spring 43 act on the cam member 41. In FIG. 2, the portion accommodated in the accommodation recess 36 a by the cam member 41 and the torque spring 43 in the accommodation recess 36 a are indicated by solid lines for convenience. These exist inside the slider cam 36, and corresponding parts are indicated by dotted lines in other drawings.

  As shown in (a), the torque spring 43 biases the control portion 41a in a direction in which it does not act on the slider drive butt 23. The pressing member 42 includes a pressing inclined surface 42a that appears and disappears. The front end of the pressing inclined surface 42a is inclined downward, and is in contact with the drive portion 41b of the cam member 41 in the vicinity of the front end in the immersion state shown in FIG. When the pressing inclined surface 42a is protruded to the surface side of the paper surface, as shown in FIG. 5B, the contact portion of the driving portion 41b with the pressing member 42 exceeds the pressing inclined surface 42a and the upper surface of the pressing member 42 It shifts to the pressing flat surface 42b. This transition of the abutting portion causes the cam member 41 to swing and displace in the clockwise direction against the urging force of the torque spring 43, so that the control unit 41 a acts on the slider drive butt 23.

  The position of the slider drive bat 23 is controlled not by such a swinging displacement of the control unit 41a but by switching between the action such as the slide cams 34 and 35 and the action and inactivity caused by the pressing member 42. You can also Further, in the case of swing displacement or slide, both can be applied, and the position of the slider drive bat 23 can be controlled by the difference in position. Furthermore, even if the cam acting on the slider drive butt 23 is fixed, if the slider drive butt 23 is controlled so as to switch the height at which the slider drive butt 23 protrudes from the needle groove 5, the action and inactivity of the cam can be reduced. And the position of the slider drive bat 23 can be controlled. Further, if the cams are provided with action portions having different heights, they can be guided to different paths by the difference in the protruding height of the slider drive butt 23.

  FIG. 3 shows the effect of switching as in FIG. As shown in (a), the standby position of the slider 13 can be switched by providing a difference d with respect to the distance to the tooth opening 2. For this reason, when the flat knitted fabric 9 shown in FIG. 7A is knitted, the tip position of the tongue 13a is switched to a low position in the direction of retreating from the tooth mouth 2. As shown in FIG. 3B, when the rib knitted fabric 10 or the like is knitted, the front end position of the tongue 13a is switched to a higher position in the direction in which the tongue 13a advances. At the high position, the tip position of the tongue 13a approaches the tooth opening 2, so that there is a margin from the latched position of the old stitch 10a once cleared to the tip position of the tongue 13a, and the old stitch 10a is difficult to fall to the hook 12a side. .

  If such switching is appropriately performed, when knitting the flat knitted fabric 9 or the rib knitted fabric 10 or the like, depending on the organization of the knitted fabric, the endier of the knitted fabric or the knitted fabric of the knitted fabric may be intarsia. Reliable stitch formation can be performed at the end of the section or at the portion where the stitch is formed by kicking back. Since the flat knitting machine 21 is equipped with a computer and controlled by a program, it can be automatically switched. For example, the case where the needle bed 3 on one side of the mouth 2 is used and the case where the needle beds 3 and 4 on both sides are used can be determined based on the needle selection state. In advance, the flat knitting machine 21 or the design device determines such a needle selection state automatically from the needle selection data, and moves the slider drive butt 23 via the movable cam mechanism 40 so as to change the position of the tongue 13a. It is also possible to set a program to be controlled. If the tongue 13a is at a high position, the old stitches 9a and 10a are securely locked by the tongue 13a. If the tongue 13a is in a low position, the knitting yarn 8 can be prevented from hanging on the tongue 13a when passing through the position where it is captured in the hook of the hook 12a.

  FIG. 4 shows a schematic side configuration of the movable cam mechanism 40. As shown in FIG. 1 (b), in the cam members 41 on both sides of the center line 30c, the pressing inclined surface 42a or the pressing flat surface 42b of the pressing member 42 acts simultaneously on the driving portion 41b arranged close to each other. As shown in FIG. 4, in the pressing member 42, a shaft portion 42 d centering on the axis line 42 c is inserted into the support block 44. When the actuator 43 such as a solenoid on the base end side is driven along the axis 42 c, the pressing inclined surface 42 a and the pressing flat surface 42 b on the distal end side are driven so as to appear and disappear on the surface of the substrate 31. When the pressing flat surface 42b protrudes from the substrate 31 as shown in the figure, the drive portion 41b of the cam member 41 is pushed upward as shown in FIG. Thus, the action part 41a is displaced downward. The pressing member 42 is a compression spring 45 inserted between the support block 44 and the actuator 43, and is urged in a direction in which the pressing flat surface 42 b sinks to the substrate 31.

  In the movable cam mechanism 40 of the present embodiment, the position of the tongue 13a is switched between two stages. However, the actuator 43 changes the position of the tongue 13a in multiple stages or continuously without using an air cylinder or a motor. May be. The position of the tongue 13a may be changed depending on the force for lowering the knitted fabric or the degree of clogging of the knitting stitch.

  5A and 5B show a pressing member 42 included in the movable cam mechanism 40 in FIG. 5A, and a plan configuration, a front configuration, and a right side configuration of the cam member 41 in FIG. The cam member 41 that swings and displaces by the action of the pressing inclined surface 42a or the pressing flat surface 42b of the pressing member 42 has a boss insertion hole 41d having a support axis 41c as a center line between the control unit 41a and the driving unit 41b. Have. The boss 36b of the slider cam 36 is inserted into the boss insertion hole 41d, and the cam member 41 is supported so as to be swingable and displaceable.

  6A is a plan view of the slider cam 36 provided with the movable cam mechanism 40, FIG. 6B is a front view of the slider cam 36, FIG. 6C is a cross-sectional view of the slider cam 36 viewed from the section line CC of FIG. The right side configuration is shown by (d). As shown in (a), the slider cam 36 is provided with an accommodation recess 36a for accommodating the left and right action members 41. Near the center of the housing recess 36a, there is provided a pressing insertion hole 36d through which a protruding portion including the pressing inclined surface 42a and the pressing flat surface 42b of the pressing member 42 is inserted, and an opening communicating with the slider guide path 38 is provided at both lower ends. A portion 36e is provided. The control portion 41a of the cam member 41 protrudes into the slider guide path 38 through the opening 36e and can act on the slider drive butt 23.

2 Tooth mouth 3, 4 Needle bed 7 Yarn feeder 7a Yarn feeder 8 Knitting yarn 9 Flat knitted fabric 9a, 10a Old stitch 10 Rib knitted fabric 11 Compound needle 12 Needle body 12a Hook 13 Slider 13a Tongue 21 Flat knitting machine 22 Needle drive butt DESCRIPTION OF SYMBOLS 23 Slider drive bat 30 Cam system 36 Slider cam 38 Slider guide path 40 Movable cam mechanism 41 Cam member 41a Control part 41b Drive part 42 Press member 42a Press inclined surface 42b Press flat surface 43 Actuator

Claims (6)

A needle body having a hook at the tip and a slider that slides and moves relative to the needle body and opens and closes the hook with a tongue at the tip are combined with each other, and the needle drive butt of the needle body and the slider drive butt of the slider are combined into a cam system. In the flat knitting machine equipped with a compound needle that captures the knitting yarn to the hook when the hook is advanced into the tooth opening and then pulled into the needle bed,
In knit knitting, the path of the knit route through which the slider-driven bat passes passes through the section corresponding to when the knitting yarn is captured by the hook, and the slider position is locked to the tongue by the action of the slider-driven bat A movable cam that can be controlled to a high position in the direction of advancement of the mouth where the stitches are less likely to fall into the hook, or a lower position in the direction of backward movement from the mouth of the yarn where the yarn fed from the yarn feeder is difficult to be caught by the tongue. A flat knitting machine including a compound needle characterized by including a mechanism.   The movable cam mechanism is a cam member that can switch the position of the slider in a section corresponding to when the knitting yarn is captured by the hook in two steps by controlling the action and non-action on the slider drive bat. A flat knitting machine comprising a compound needle according to claim 1. The cam member has a lever shape, and is provided with a control unit for controlling the slider drive bat at one end and a drive unit for receiving control driving at the other end, and swings between the control unit and the drive unit. Supported to allow displacement,
The movable cam mechanism is
An actuator that generates a driving force to swing and displace the cam member;
A pressing member that presses the drive portion of the cam member in the direction of swinging displacement with the output of the actuator;
A flat knitting machine comprising a compound needle according to claim 2. The cam system is configured such that both sides of the center line are symmetric so that the mounted carriage performs the same action even when reciprocating.
The movable cam mechanism is
A set of the actuator and the pressing member disposed near a center line;
A pair of cam members respectively disposed on both sides of the center line so that a position near the center line is the drive unit and a position far from the control line is the control unit;
The drive portions of the pair of cam members are commonly controlled by a set of actuators and pressing members.
A flat knitting machine comprising the compound needle according to claim 3. It has at least a pair of needle beds facing each other across the mouth, and in the needle grooves arranged in parallel to the needle beds,
A needle body having a hook at the tip and a slider that slides and moves relative to the needle body and opens and closes the hook with a tongue at the tip are combined with each other, and the needle drive butt of the needle body and the slider drive butt of the slider are combined into a cam system. In the slider control method of a flat knitting machine provided with a compound needle that captures the knitting yarn to the hook when the hook is advanced into the tooth opening and then pulled into the needle bed.
In knit knitting, a cam is provided in the section of the knit route trajectory through which the slider drive bat passes to catch the knitting yarn with the hook, and the position of the slider is adjusted by the action of the cam on the slider drive bat. , High position in the direction where the old stitch locked to the tongue is difficult to fall into the hook, or low position in the direction where the knitting yarn fed from the yarn feeder is retracted from the mouth where it is difficult to get caught in the tongue A slider control method for a flat knitting machine, wherein control is performed so as to change to The change by controlling the position of the slider is performed according to the needle selection state,
Whether the position at which the knitting yarn, which is knitted from the yarn feeder and extends to the knitted fabric depending on the mouth, is connected to the knitted fabric is closer to the needle bed provided with the composite needle for capturing the knitting yarn than the middle of the mouth The action on the slider drive bat via the cam is changed to change to the low position or the high position, respectively.
The slider control method for a flat knitting machine according to claim 5.

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