KR20080031784A - End yarn inserting device - Google Patents

Abstract

An end yarn-inserting apparatus is provided to hold an end yarn securely without missing the end yarn while the end yarn is cut and grasped by a cutting and grasping machine. An end yarn-inserting apparatus(1) is installed in a glove-knitting machine. The end yarn-inserting apparatus comprises a guide rail(23) and a machine sliding along the guide rail. A movable body(32) is installed at the machine such that the movable body is moved relatively to the machine. The movable body has an end yarn hook(33) and an end yarn presser(34). The end yarn hook is moved between a catching position, where the end yarn is caught, and a hook evacuation position, where the end yarn is evacuated from a knitting needle. The end presser is moved between a holding position, where the end presser holds the end yarn through synchronization with the end yarn hook at the catching position, and a presser evacuation position, where the end presser is evacuated from the knitting needle together with the end yarn hook. The machine has a stopper(48). The stopper supports the end yarn presser so that the stopper stops the end yarn presser from moving from the hook evacuation position toward the holding position, thereby making the end yarn presser on standby at a standby position where the end yarn presser is evacuated from a supplied yarn. The end yarn presser is separated from the stopper by moving the movable body relatively to the machine. Further, the movable body is installed at the guide rail in order to be capable of sliding displacement along the guide rail.

Description

Single yarn inserting device {END YARN INSERTING DEVICE}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a single yarn inserting device provided with a flat knitting machine for inserting single yarns into an inside of a bag-shaped knitting fabric.

The single yarn inserting apparatus of the prior art moves a single yarn hook and a single yarn presser in the vicinity of a cross over yarn when the single yarn is sandwiched. Next, the single yarn hook and the single yarn presser are rotated. At this time, the single yarn hook is lowered to the catching position for catching the cross yarn, and the single yarn presser is isolated above the single yarn hook. In this state, the single yarn of the cross yarn is caught by the single yarn hook. Next, the holding of the single yarn by the cutting gripping device is released, and the single yarn hook is raised to intersect the single yarn of the cross yarn by the single yarn hook and the single yarn presser (see Patent Document 1, for example).

Patent Document 1: Japanese Patent Application Laid-Open No. 2000-178861

Since the single yarn inserting device of the prior art clamps the single yarn by raising the single yarn hook from the catching position, if the cutting gripping device is held before releasing the single yarn, there is a possibility that excessive tension acts on the knitting yarn and the thread is broken. In addition, when the cutting gripping apparatus releases the single yarn and pinches it simultaneously, the tension applied to the single yarn becomes insufficient, and the knitting yarn is loosened. In addition, the single yarn may leak from the single yarn hook, and the insertion of the single yarn into the finger portion becomes unstable. Accordingly, it is an object of the present invention to provide a single yarn insertion device which reliably sandwiches single yarns and inserts them into the inside of a finger portion.

According to the present invention, a guide rail extending in the left and right directions, a base mounted on the guide rail and slidingly displaced along the guide rail, a first drive mechanism for driving the base along the guide rail, and a capturing trapped yarn are captured. The single yarn hook displaces from the position and the hook evacuation position from the needle and the single yarn hook, the single yarn presser which pinches the thread caught on the single yarn hook in cooperation with the single yarn hook, and the single yarn hook is displaced over the capture position and the hook evacuation position. A single yarn inserting device having a second driving mechanism and sandwiching a yarn to be fed and fed to a flat knitting machine, the single yarn inserting device further comprising a movable body mounted on the base and displaced relative to the base, wherein the single yarn presser is attached to the single yarn hook. Interlock and cooperate with the single yarn hook at the catching position to sandwich the thread caught by the single yarn hook. Displaces from the pinching position and single needle to the presser evacuation position evacuated together with the single yarn hook, and supports any single yarn presser that is displaced from the presser evacuation position toward the pinching position to prevent displacement by suddenly A stopper for waiting for the single yarn presser is formed at the standby position to evacuate from the thread to be evacuated, and the stopper is a single yarn insertion device characterized in that the movable body releases the support of the single yarn presser waiting at the standby position by displacing the gas relative to the gas. .

In addition, the present invention is characterized in that an accommodation hole is formed in the base, and the movable body is mounted to the guide rail so as to be slidable and displaceable along the guide rail, and is coupled to the accommodation hole so as to be displaceable along the guide rail.

In addition, the present invention has a single yarn hook having a catching surface that extends in the horizontal direction in contact with the captured yarn, and the single yarn presser pushes the single yarn downward from the catching surface in a state where the single yarn is held in cooperation with the single yarn hook. It is characterized by comprising a knitting yarn.

According to the present invention, when the movable body is relatively displaced with respect to the body in a state in which a thread is caught in the single yarn hook, the single yarn press releases the support by the stopper and shifts from the standby position to the pinching position. As a result, the yarn caught by the single yarn hook can be held by the single yarn hook and the single yarn presser. Thus, since the single yarn presser displaces and pinches the single yarn without displacing the single yarn hook at the capture position, it is possible to suppress fluctuations in tension generated when the single yarn is held. Thereby, the thread can be reliably clamped without catching the single yarn cut and held by the cutting gripping apparatus.

Further, according to the present invention, since the movable body is coupled to the receiving hole so as to be displaceable along the guide rail, when the direction in which the gas is slidably displaced by the first driving mechanism, the movable body is displaced relative to the gas so that the single yarn presser The thread picked up by the single yarn hook can be pinched | deviated from the stopper. Therefore, a new drive mechanism for driving the single yarn presser is not required, thereby increasing the number of parts and facilitating the configuration.

In addition, according to the present invention, the single yarn is pushed downward by the pressing portion downward from the capture surface, so that the single yarn is extended from the position below the single yarn hook toward the sudden yarn portion. Thereby, the thread hanging defect by the knitting needle in the vicinity of a single yarn hook can be prevented.

EXAMPLE

EMBODIMENT OF THE INVENTION Hereinafter, the example for implementing this invention is demonstrated, referring drawings. 1 is a front view showing a glove knitting machine 2 having a single yarn insertion device 1 as an example of the practice of the present invention. 2 is a side view showing a glove knitting machine 2. FIG. A glove knitting machine 2, which is a kind of flat knitting machine, includes a knitting machine main body 100, a cutting gripping device 21, and a single yarn inserting device 1 for knitting a knitted fabric.

The knitting machine main body 100 includes a pair of bases 3 which are provided to face each other, extends over both left and right ends of the pair of bases 3, and is provided with a mountain support 5 protruding upwards. do. The support base 5 is provided with a pair of front and rear needle beds 9f and 9b which are accommodated so as to advance and retract a plurality of knitting needles 7 and extend in the horizontal direction. The front and rear pairs of needle beds 9f and 9b are installed on the upper part of the support 5, are installed in the shape of an arm while being separated in the front and rear directions, and the needle bed gap 8 is formed by the upper end thereof.

Each needle bed 9f, 9b is provided with carriages 13f, 13b for advancing and knitting the knitting needle 7, and carriage rails 15f, 15b for extending the lateral direction and guiding the carriages 13f, 13b, respectively. The knitting machine main body 100 is provided with a drive device (not shown) for reciprocating the carriages 13f and 13b in the left and right directions on the needle beds 9f and 9b along the carriage rails 15f and 15b. Support brackets 16 and 18 are provided on the left and right sides of the needle beds 9f and 9b. Yarn guide rails 17f and 17b are installed on the support brackets 16 and 18, respectively. Yarn feed rails 19f and 19b are provided on each yarn guide rail 17f and 17b so as to reciprocate in the horizontal direction.

The cutting gripping apparatus 21 is a device which captures, cuts, and holds the cross yarns generated when the respective finger portions are sequentially knitted. The cutting gripping apparatus 21 is provided below the needle bed gap 8 so as to be displaceable in the horizontal direction. The cutting gripping apparatus 21 can be implemented using a well-known apparatus, and the technique disclosed by Unexamined-Japanese-Patent No. 53-1863 can be applied, for example.

The single yarn insertion device 1 includes a guide rail 23, a single yarn insertion device main body 24, a first drive mechanism 25, and a second drive mechanism 26. The guide rail 23 is formed in an elongated board shape, the longitudinal direction of which extends in the horizontal direction, and both ends are supported by the support bracket 18. The guide rails 23 are arranged to face the needle bed gap 8, so that the width direction thereof is substantially parallel to the width direction of one of the two needle beds 9f. The single yarn inserting device main body 24 is a device for sandwiching single yarns generated by the cutting gripping apparatus 21 and inserting single yarns into the inside of the finger portion. The single yarn inserter main body 24 is mounted on the guide rail 23 so as to be displaceable in the horizontal direction.

3 is an enlarged front view of the single yarn inserting device main body 24. 4 is an exploded front view of the single yarn inserting device main body 24 in an exploded view. Fig. 5 is a sectional view showing a base 31 and a movable body 32 included in the single yarn inserter main body 24. Figs. FIG. 5 (a) shows the substrate 31 seen from the A-A cut section of FIG. Fig. 5 (b) shows the movable body 32 seen from the section B-B in Fig. 4. The single yarn inserting device main body 24 includes a base 31, a movable body 32, a single yarn hook 33, a single yarn presser 34, a spacer 35, a spring member 36, and a cover member 37. Equipped.

The base 31 includes an approximately rectangular frame 41, a rack attaching portion 47, and a base slide 42. As for the edge part 41, the accommodating hole 98 which penetrates in the thickness direction is formed, and the accommodating hole part 44 which defines the accommodating hole 98 is formed. The edge portion 41 faces one surface 23a in the thickness direction of the guide rail 23 when assembled as the single yarn inserting device 1. The longitudinal direction A, the width direction B, and the thickness direction C of the edge portion 41 respectively follow the length direction, the width direction, and the thickness direction of the guide rail 23. Hereinafter, one side A1 of the longitudinal direction of the edge part 41 as a left direction of the paper surface is called a left direction, and the other side A2 of the longitudinal direction of the edge part 41 is called a right direction as a right direction of the paper surface. In addition, one side of the width direction is called downward B1, and the other side of the width direction is called upper side B2. One side in the thickness direction is called the surface direction C1, and the other side in the thickness direction is called the back surface direction C2.

The edge portion 41 is formed with a stopper 48 protruding in the surface direction C1. The stopper 48 is formed at the lower end of the edge portion 41. In addition, the rack attachment part 47 becomes a part connected to the rack 82 mentioned later. A rail groove portion is formed in the base slide portion 42 so that the upper and lower ends 23b and 23c of the guide rail 23 are slidably inserted in the left-right direction A. The base 31 is attached to the guide rail 23 by joining the rail groove part of the base slide part 42 and the guide rail 23, and is capable of sliding displacement in the left-right direction A with respect to the guide rail 23.

The movable body 32 includes a substantially rectangular board-like plate portion 51 and a movable body slide portion 53. When the plate portion 51 is assembled as the single yarn inserting device 1, the plate 51 faces one surface 23a in the thickness direction of the guide rail 23, and the longitudinal direction A, the width direction B, and the thickness direction C are respectively the longitudinal direction of the guide rail 23, Follow the width direction and thickness direction. The plate portion 51 is provided with a first screw hole 99 and a second screw hole 97. The lower limit portion 52 for restricting the lowering of the single threaded hook 33 is screwed into the first screw hole 99. An assembling screw 38 for attaching and detaching the cover member 37 to the movable body 32 is screwed into the second screw hole 97.

The plate portion 51 is formed with a ridge portion 112 and protrusions 57a and 57b. The protruding portions 112 and the protruding portions 57a and 57b protrude from the plate portion 51 in the surface direction C1. The raised portion 112 is formed in a circular annular shape with the same axis as the inner thread of the second screw hole 97 and connected to the second screw hole 97. In addition, each of the protrusions 57a and 57b is formed to engage the spacer 35. The movable body slide portion 53 is provided with a rail groove portion so that the upper and lower ends 23b and 23c of the guide rail 23 are slidably inserted in the left-right direction A. The movable body 32 is attached to the guide rail 23 by engaging the rail groove part of the movable body slide part 53 with the guide rail 23, and is slidable with respect to the guide rail 23 in the left-right direction A. FIG.

The movable body 32 is configured to be accommodated in the accommodation hole 98 of the edge portion 41. The movable slide 53 is provided in the region between the left and right directions A of the base slide 42. In addition, the guide rail 23 can be inserted into the rail grooves of both the base 31 and the movable body 32 simultaneously with the movable body 32 accommodated in the receiving hole 98. In the state where the base 31 and the movable body 32 are inserted in the guide rail 23, the movable body 32 becomes relatively displaceable in the left-right direction A with respect to the base 31. FIG. In a state where a gap is formed between the left side gas slide part 42 and the left side movable body slide part 53, when the body 31 is displaced in the right direction A2, the movable body 32 is the left side gas slide part 42 and the left side movable body slide. The stationary state is maintained until the part 53 contacts, and after the gas slide part 42 on the left side and the movable body slide part 53 on the left side come into contact with each other, the movable body 32 is pushed by the gas slide part 42 on the left side and the right side together with the gas 31. Move to direction A2. In a state where a gap is formed between the gas slide portion 42 on the right side and the movable body slide portion 53 on the right side, the base 31 and the movable body 32 perform operations in which the left and right directions are opposite to the above state.

The single yarn hook 33 is configured to be capable of capturing single yarn. The single yarn hook 33 has a long board-shaped hook main body 61 and a long board-shaped hook bent portion 62 and is formed in an approximately L-shaped board shape. The hook main body portion 61 includes two leg portions 64a, 64b branched from the central portion 61c in the longitudinal direction and extending in the width direction, respectively, extending in the longitudinal direction.

Rollers 65a and 65b are provided at the free ends of the two leg portions 64a and 64b, respectively. Each roller 65a, 65b is rotatably installed about the rotating shaft extended in the thickness direction of the hook main-body part 61. As shown in FIG. In one leg portion 64a, a coupling hole portion 66 defining a coupling hole 94 penetrating in the thickness direction is formed. The engaging hole portion 66 is provided with a circular first through hole 95 and a second through hole 96 connected to the first through hole 95 and formed into a substantially fan shape. The hook bend 62 has a hook main body 61 continuous to its proximal end, and a catch 67 is formed at its end 62a. The capture portion 67 protrudes from the hook bend portion 62 in the thickness direction of the hook bend portion 62. In addition, the single yarn hook 33 is formed with a first coupling portion 110 for coupling the spring member 36.

The single yarn presser 34 is configured to be capable of pinching the yarn captured by the single yarn hook 33 in cooperation with the single yarn hook 33 by pressing the yarn captured by the single yarn hook 33 from above. The single yarn presser 34 is formed in the shape of a substantially arc-shaped board, and has a base end 71, a pressurizing part 73, and a connecting part 76. The proximal end 71 is formed in a circular annular shape having an inner diameter approximately equal to the outer diameter of the raised portion 112 of the movable body 32. In the connecting portion 76, a stepped portion 72 is formed near the base end 71. The connecting portion 76 is formed in a shape in which a portion 74 of the base end 71 side of the connecting portion 76 enters the thickness direction as compared with a portion of the pressing portion 73 side of the connecting portion 76. In addition, the single yarn presser 34 is provided with a second engaging portion 111 for engaging the spring member 36.

In the single yarn presser 34, a portion 74 of the proximal end 71 and the connecting portion 76 is engaged with the engaging hole 66 of the single yarn hook 33. At this time, the single yarn presser 34 has a portion on the single yarn hook 33 rather than the step portion 72 on the pressing portion 73 side. In the engaged state in which a part 74 of the single yarn presser is engaged with the engagement hole 66 of the single yarn hook 33, the central axis L1 of the first through hole 95 and the base end 71 becomes the same axis. Hereinafter, center axis line L1 is called angular displacement axis L1. In the engaged state, the single yarn presser 34 allows rotational angular displacement about the angular displacement axis L1 within a predetermined range with respect to the single yarn hook 33. The spacer 35 is provided to secure a space for installing the spring member 36 between the single yarn hook 33 and the cover member 37. The spacer 35 is coupled to the two projections 57a and 57b formed on the movable body 32 to be supported on the movable body 32.

The spring member 36 is an elastic member that allows rotational angular displacement about the angular displacement axis L1 within a predetermined range and connects the single yarn hook 33 and the single yarn presser 34. The spring member 36 is formed in a substantially U shape having an arc portion 36a, and is bent in the circumferential direction around the angular displacement axis L1 and is provided between the base end portion 71 and the spacer 35. The spring member 36 has one end portion 36c coupled to the first engagement portion 110 of the single yarn hook 33 and the other end portion 36b coupled to the second engagement portion 111 of the single yarn presser 34. The cover member 37 is provided to prevent the single yarn hook 33, the single yarn presser 34, the spacer 35, and the spring member 36 from being separated from the movable body 32. The cover member 37 is formed in a disk shape in which an insertion hole is formed in the center.

FIG. 6 is an enlarged left side view of the single yarn insertion device main body 24 shown in FIG. With the base 31 and the movable body 32 coupled to the guide rail 23, the single yarn hook 33 and the single yarn presser 34 are sequentially stacked in the thickness direction on the surface 51a of the plate portion 51 of the movable body 32. Moreover, the 2nd screw hole part 97 of the movable body 32, the 1st through-hole 95 of the single threaded hook 33, and the base end 71 of the single threaded presser 34 are arrange | positioned so that each center axis line L1 may become the same axis.

The single yarn hook 33 can be rotated over the hook evacuation position to evacuate from a plurality of knitting needles 7 which are located above the capture position and the capture position by capturing the single yarn by rotating the angular displacement about the angular displacement axis L1. . The capturing position is a position where the capturing section 67 is disposed directly above the needle bed gap 8. When the single yarn hook 33 is rotated about the angular displacement axis L1 and is rotated, the single yarn hook 33 comes into contact with the lower limit portion 52, thereby limiting the lowering during rotation. The lowest position at which the lower end of the single yarn hook 33 is restricted corresponds to the capture position. Further, the single yarn presser 34 rotates about the angular displacement axis L1 to cooperate with the single yarn hook 33 positioned at the capturing position so as to sandwich the thread captured by the single yarn hook 33 and above the pinching position. It is provided in the base 31 so that rotation displacement is possible over the presser evacuation position which is located and evacuates from the knitting needle 7. The single yarn presser 34 is formed so that the pressing portion 73 can be placed on the trapping portion 67 of the single yarn hook 33. The single yarn presser 34 is formed to be rotatable about the angular displacement axis L1 together with the single yarn hook 33 in the state where the pressing portion 73 is placed on the capture portion 67. The pinching position of the single yarn presser 34 is a position where the pressing section 73 is placed on the catching section 67 of the single yarn hook 33 at the picking position.

A stopper base 75 is formed at the connecting portion 76 of the single yarn presser 34. The stopper support portion 75 is formed to contact the stopper 48 when the single yarn presser 34 rotates from the presser evacuation position to the pinching position. When the stopper base 75 comes into contact with the stopper 48, the lowering during rotation is restricted. The position where this drop is restricted becomes the standby position of the single yarn presser 34. As the single yarn presser 34 is released from contact with the stopper 48, the lowering limit during rotation is eliminated, and the capturing position can be reached. In this way, the single yarn presser 34 is provided on the movable body 32 so as to be rotatable displacement over the presser evacuation position evacuated from the plurality of knitting needles 7 and the sandwiching position for sandwiching the single yarn.

As shown in Fig. 1, the first drive mechanism 25 is a mechanism for reciprocating displacement of the single yarn inserting device main body 24 along the guide rail 23 in the left-right direction. The first drive mechanism 25 includes a first drive motor 81 and a rack 82. The first drive motor 81 is provided with a pinion gear 83 at its output shaft. The rack 82 is formed in a board shape, and an end thereof is attached to the rack attachment portion 47 of the base 31. By driving the first drive motor 81, the rack 82 and the gas 31 can be reciprocated in the right and left directions.

The second drive mechanism 26 is a mechanism for rotating the single yarn hook 33 about the angular displacement axis L1. The second drive mechanism 26 includes a second drive motor 85 and a crank mechanism 86. The crank mechanism 86 is a mechanism for converting the rotational motion of the second drive motor 85 into the motion in the vertical direction B. When the crank mechanism is operated by the second drive motor 85, the lever 89 extending along the guide rail 23 is displaced and driven in the vertical direction B.

The lever 89 is provided between the two rollers 65a and 65b of the single yarn hook 33. When the lever 89 moves up and down, the single yarn hook 33 angularly displaces about the angular displacement axis L1 in accordance with the displacement of the rollers 65a and 65b, and the capture portion 67 rotates in the vertical direction B. In addition, since the single yarn presser 34 is connected to the single yarn hook 33 by the spring member 36, the single yarn presser 34 rotates about the angular displacement axis L1 in conjunction with the above rotation so that the pressing section 73 is in the up-down direction B in the same direction as the capture section 67. Rotate

Fig. 7 is an enlarged front view showing the operation of the single yarn inserting device main body 24 in each step in the order of inserting the single yarn into the finger portion. Fig. 8 is a simplified diagram showing the positional relationship between the carriage 13, the cutting gripping apparatus 21, and the single yarn inserting device main body 24 during knitting. Hereinafter, the operation | movement until the single yarn insertion apparatus 1 clamps a cross yarn in the glove knitting machine 2, and inserts the single yarn obtained by cutting | crossing a cross yarn into a finger part is demonstrated.

Each time the knitting of each finger portion is completed, the cross thread extending from the finger connecting portion to the steeping portion 19 is captured by the hook of the cutting gripping apparatus 21 to cut and hold the cross thread. The cross yarn is cut in this way and the next finger portion is knitted. The single yarn which is the end of the cross yarn cut | disconnected by the cutting holding device 21 is clamped by the single yarn insertion apparatus 1. FIG. The single yarn inserting device 1 inserts the pinched single yarn into the inside of the finger portion to be knitted next. In this way, the single yarn which arises by knitting of each finger part does not protrude to the outer side of a glove, and it becomes unnecessary to insert single yarn inside a glove as a post-process.

Hereinafter, the case where single yarns are inserted into the next finger portion when the first finger portion and the next finger portion are knitted will be described. The glove knitting machine 2 knits the knitting yarn from the yarn feeding section 19 to the needle bed gap 8 and drives the carriage 13 to advance and retract the plurality of knitting needles 7, thereby knitting the first finger portion 300 from the finger tip portion 300a to the finger connecting portion 300b. At this time, the single yarn inserting device main body 24 is located in the left-right direction position which does not adversely affect knitting. In addition, the trapping section 67 and the pressing section 73 are allowed to stand in each evacuation position.

When the first finger connection portion 300b of the finger portion 300 is knitted, the yarn feeding portion 19 is moved in the leftward direction A1 more than the section P at which the next finger portion 301 starts knitting (Fig. 8A), and the cutting gripping apparatus 21 is operated in this state. First, the cross yarn 302 extending from the finger joint 300b of the finger portion to the yarn feeding portion 19 is captured by the cutting gripping apparatus 21 (Fig. 8B). The cutting gripping apparatus 21 is continuously operated to cut and hold the cross yarn (FIG. 8C). Since the cross yarn is disposed above the first finger portion 300 at the time of cutting, the cross yarn 302 is cut so that the single yarn 106 on the first finger portion 300 side is inserted into the first finger portion 300.

Subsequently, the first drive motor 81 moves the base 31 to the left direction A1 in a state where a gap is formed between the movable body slide section 53 on the right side and the base body slide section 42 on the right side. The movable body 32 remains stationary until the right side gas slide portion 42 and the right side movable body slide portion 53 come into contact with each other, and the right side gas slide portion 42 contacts the right side movable body slide portion 53 (Fig. 7A). The movable body 32 is pushed by the gas slide part 42 on the right side and moves to the left Al along with the base 31. In this way, the single yarn insertion device main body 24 is displaced by the first drive motor 81 in the left direction A1 toward the single yarn clamping position which becomes the left direction A1 from the section P (Fig. 8C).

When the single yarn inserting device main body 24 is moved to the single yarn clamping position, the second drive motor 85 moves the lever 89 to the upper position and pushes the roller 65b upward. As a result, the single yarn hook 33 is angularly displaced about the angular displacement axis L1 so that the single yarn hook 33 is rotationally displaced from the hook evacuation position toward the capture position. When the single yarn hook 33 is displaced, the single yarn presser 34 is given an elastic force from the presser evacuation position to the pinching position by the spring member 36, and is interlocked from the presser evacuation position to the pinching position in conjunction with the rotational displacement of the single yarn hook 33. Rotational displacement.

When the second drive motor 85 is continuously operated to rotate the single yarn hook 33 and the single yarn presser 34 continuously, the single yarn hook 33 reaches the capturing position while being restricted by the lower limiting portion 52. At this time, the single yarn presser 34 prevents the stopper support portion 75 from reaching the pinching position by contacting the stopper 48, and waits at the standby position. At this time, the single yarn hook 33 waits at the standby position in a state where an elastic force is given to the clamping position by the spring member 36. Thus, the capture | acquisition part 67 and the press part 73 fall in the up-down direction B, and it becomes a state which can catch the yarn knitting by the capture part 67. FIG. The cutting and holding device 21 is moved to the leftward Al from the capture section 67 while the capture section 67 and the press section 73 are separated (Fig. 8D).

In this state, the yarn feeding section 19 is moved to the right direction A2, and the yarn knitting from the yarn feeding section 19 is captured by the catching section 67. The knitting starts (Fig. 7B, Fig. 8E). After organizing a plurality of courses of the finger tip portion of the next finger portion 301, the base 31 is moved to the right direction A2 until the first slide motor 81 makes contact with the left movable slide portion 53 on the left side. Move it. When the body 31 is moved in the right direction A2, the movable body 32 is relatively displaced in the left direction A1 with respect to the body 31. As a result, the single yarn presser 34 is displaced relative to the base 31, and the stopper support portion 75 of the single yarn presser 34 is separated from the stopper 48. When detached from the stopper 48, the single yarn presser 34 is rotationally displaced about the angular displacement axis L1 toward the clamping position by the elastic force pressed by the spring member 36 to reach the clamping position. When the pinching position is reached, the single yarn 105 captured by the catching section 67 is caught by the catching section 67 and the pressing section 73 (Figs. 7C and 8F).

In the state where the single yarn 105 is sandwiched, the cutting gripping apparatus 21 is driven to release the single yarn 105 from the cutting gripping apparatus. In addition, the lever 89 is moved to the downward position by the second drive motor 85, so that the single yarn hook 33 is rotated from the capturing position toward the hook evacuation position. The single yarn presser 34 rotates from the pinching position toward the presser evacuation position in conjunction with the rotational displacement of the single yarn hook 33. At this time, the catching section 67 lifts the pressing section 73 upwards, and the single yarn hook 33 and the single yarn presser 34 reach each evacuation position in a state where the single yarn 105 is sandwiched. The single yarn hook 33 and the single yarn presser 34 sandwich the single yarn 105 in the state of being located at the evacuation position, respectively and evacuate the single yarn 105 from the plurality of knitting needles 7 (Figs. 7D and 8G). This prevents the single yarn 105 from being entangled during the knitting of the next finger.

After the finger tip portion of the next finger portion is knitted in multiple courses and the feeding portion 19 moves to the left side of the next finger portion (Fig. 8H), the first and second driving motors 81 and 85 are driven so that the capture portion 67 and the pressing portion 73 move downward. The single yarn hook 33 and the single yarn presser 34 are moved to draw the trajectory of the parabolic projecting toward (FIG. 8i). As a result, the single yarn hook 33 and the single yarn presser 34 are separated in the up-and-down direction B to separate the single yarn 105 from the single yarn hook 33, and the sandwiched single yarn 105 is inserted into the next finger portion 301. After that, the single yarn hook 33 and the single yarn presser 34 are evacuated to each evacuation position, and the first finger portion 300 is moved to the position beyond the right side. Even after the single yarn 105 is inserted, the yarn feeding from the yarn feeding portion 19 continues, and the next finger portion 301 is subsequently knitted by the plurality of knitting needles 7. In this way, each finger portion is knitted sequentially, and the cross yarn is cut and gripped, and the cut yarn is inserted into each finger portion by the single yarn inserting device main body 24.

In the above description, as shown in Figs. 8E and 8F, after knitting a plurality of courses of the finger tip portion of the next finger portion, the single yarn 105 is sandwiched by the single yarn inserting device main body 24. The single yarn 105 may be sandwiched by the single yarn inserting device main body 24 before knitting the finger tip portion of the finger portion. In other words, the single yarn 105 may be clamped immediately after the single yarn 105 is captured by the single yarn hook 33.

Fig. 9 is a diagram schematically showing another single yarn clamping state of the single yarn inserting device body 24; The single yarn hook 33 has a capture surface 190 extending in the horizontal direction A in contact with the captured yarn. The single yarn presser 34 is provided with the narrow surface 191 which opposes the capture surface 190 of the single yarn hook 33, and the knitting yarn 192 in a state where the yarn is held in cooperation with the single yarn hook 33 at the sandwiching position. In the state where the single yarn 105 is sandwiched, the knitting yarn 192 is bent at the side of the steep yarn 19 side of the narrow surface 191 so as to extend from the narrow surface 191 toward the knitting needle 7 and adjacent to the capture portion 67.

The yarn feeding part side portion 105a extending from the trapping surface 190 toward the yarn feeding unit 19 side is bent downward compared to the portion in contact with the trapping surface 190 by contacting the lower end surface of the pressing unit 192, and is lower than the trapping surface 190 of the single yarn hook 33. It extends toward the feeding part 19 from the position of. Thus, the single yarn presser 34 pushes the edge part 105b of the capture surface side downward in the yarn feed part side part 105a of the single yarn 105 in the state which pinched the single yarn 105 in cooperation with the single yarn hook 33. As shown in FIG. Accordingly, when the single tip 105 of the next finger part 301 is knitted after the single yarn 105 is held by the single yarn inserting device 1, the first knitting needle 7 used for knitting the next finger part 301 can lower the latching position of the single yarn. It is possible to prevent poor threading of the needle needle 7 and to perform threading of the needle needle 7 stably. Therefore, even a fine gauge knitting machine in which the shape of a hook becomes small or a knitting machine which performs plating knitting can prevent a thread hanging defect. In addition, by easily threading at the start of knitting by the knitting needle 7, the adjustment allowable width for aligning the feeding section 19 can be increased to simplify the adjustment of the positioning of the feeding section 19. In addition, even if the capturing position of the single yarn hook 33 is set to a lower position that does not interfere with other components, the single yarn presser 34 pushes the end portion 105b of the capping surface side of the steep portion 105a of the single yarn 105 to push the end portion 105b. The thread hanging position can be lowered further. In particular, when the first knitting needle 7 which starts knitting of the single yarn hook 33 and the next finger portion 301 is close to the left and right directions, the effect of stabilizing the thread hanging by the single yarn pressing by the single yarn presser 34 is large.

As described above, according to the single yarn inserting apparatus 1 of the present embodiment, since the single yarn presser 34 displaces and pinches the single yarn without displacing the single yarn hook 33 at the trapped position, it is possible to suppress the fluctuation in tension generated when the single yarn is held. Can be. As a result, the single yarn can be held in advance by the single yarn inserting device 1 before releasing the single yarn by the cutting gripping apparatus 21, so that the single yarn cannot be held and the decrease in the tension of the yarn can be prevented. Since it can pinch, a single yarn can be inserted reliably inside knitted fabrics, such as gloves. As described above, the single yarn insertion device 1 may perform either the first clamping example for clamping the single yarn 105 after the knitting of the next finger portion and the second clamping example for clamping the single yarn before the knitting of the next finger portion. In the case of adopting the second clamping example, the single yarn inserting device 1 pushes the end portion 105b of the trapping surface side downward from the steep yarn-side part 105a of the single yarn 105 in a state where the single yarn 105 is sandwiched, so that the thread is hooked by knitting needles. The position can be lowered to stabilize the thread hooking of the knitting needle 7.

Further, according to the single yarn inserting apparatus 1 of the present embodiment, the single yarn presser 34 is displaced from the stopper 48 only by displacing the body 31 in the right direction A2 by the first driving motor 81 within the range in which the movable body 32 is stopped. The thread caught by the single yarn hook 33 can be pinched. Therefore, the drive mechanism for driving the single yarn presser 34 is not required separately, so the number of parts is small and the configuration is easy. In addition, in this embodiment, the stopper 48 is formed on the base 31 and the single yarn hook 33 and the single yarn presser 34 are installed on the movable body 32, but the stopper 48 is formed on the movable body 32 and the single yarn hook 33 and the single yarn presser 34 on the base 31. May be installed. Thus, when the stopper 48 is formed in either the base 31 and the movable body 32, and the single yarn hook 33 and the single yarn presser 34 are installed in the other, the same effect can be acquired.

In the present embodiment, a method of inserting single yarns into the next finger portion has been described, but the single yarns on the side of the first finger portion may be sandwiched by the single yarn inserting device main body 24 so that the single yarns are inserted into the first finger portion. In addition, as shown in the above Patent Document 1, the single yarn inserting device main body 24 may perform front and rear rotation control so as to draw a locus for sending and receiving a single thread hook and hook presser. In addition, in this embodiment, although the glove knitting machine 2 was demonstrated as an example of the flat knitting machine, it is not limited to a glove knitting machine, What is necessary is just a flat knitting machine. For example, it may be a sock flat knitting machine which knits socks with 5 toes.

1 is a front view showing a glove knitting machine 2 having a single yarn insertion device 1 as an example of an embodiment of the present invention.

Figure 2 is a side view showing a glove knitting machine 2.

3 is an enlarged front view of the single yarn inserting device main body 24.

4 is an exploded front view of the single yarn inserting device main body 24 in an exploded view.

5 is a cross-sectional view showing the base 31 and the movable body 32. FIG.

FIG. 6 is an enlarged left side view of the single yarn insertion device main body 24 shown in FIG.

Fig. 7 is an enlarged front view showing the operation of the single yarn insertion device main body 24 in each step in the order of inserting the single yarn into the finger portion.

Fig. 8 is a simplified view showing the positional relationship between the carriage 13, the cutting gripping apparatus 21, and the single yarn inserting device main body 24 during knitting.

Fig. 9 is a diagram schematically showing a state of sandwiching the other single yarn of the single yarn insertion device main body 24.

* Description of the symbols for the main parts of the drawings *

1 Single thread inserting device

2 glove knitting machine

7 needle

9b, 9f needle bed

23 guide rail

25 First Driving Mechanism

26 2nd Drive Mechanism

31 gas

32 movable body

33 Single Hook

34 single yarn presser

36 spring members

44 hole

48 stopper

Claims (3)

A guide rail extending in the left and right directions, a base mounted on the guide rail and slidingly displaced along the guide rail, a first driving mechanism sliding the base along the guide rail, and sudden Single yarn hook displaced from the catching position to catch the thread to be sewn and the hook evacuation position to escape from the single needle, and the single yarn presser which pinches the thread caught on the single yarn hook in cooperation with the single yarn hook.端 絲 presser, and a second drive mechanism for displacing the single yarn hook over the picking position and the hook evacuation position, and in a single yarn inserting device provided with a flat knitting machine to sandwich the yarn to be fed. In A movable body installed in the body and relatively displaced relative to the body, The single yarn presser is interlocked with the single yarn hook, and cooperates with the single yarn hook at the catching position to displace the pincer evacuation position to evacuate with the single yarn hook from the pinching position and the needle needle to pinch the thread caught on the single yarn hook, One of the gas and the movable body is provided with a stopper for supporting the single yarn presser which is displaced from the presser evacuation position toward the pinching position to stop the displacement and waiting for the single yarn presser at the standby position evacuated from the yarn to be fed. And the single yarn inserter releasing the support of the single yarn presser waiting at the stand-by position by moving the movable body relative to the gas. The method of claim 1, The base is provided with a receiving hole, And the movable body is mounted to the guide rail so as to be slidable and displaceable along the guide rail and is coupled to the accommodation hole so as to be displaceable along the guide rail. The method according to claim 1 or 2, The single yarn hook has a capture surface extending in the horizontal direction in contact with the captured yarn, A single yarn presser is provided with a single yarn pressing part which pushes single yarns below a catching surface in the state which pinched the single yarn in cooperation with a single yarn hook, The single yarn inserting apparatus characterized by the above-mentioned.

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