KR20080031794A - 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, thereby easily inserting the held end yarn into a sack-shaped knitted fabric. An end yarn-inserting apparatus is installed in a glove-knitting machine. The end yarn-inserting apparatus comprises a guide rail(23), a machine(31) sliding along the guide rail, a stopper body(32) moving relatively to the machine by movement of a carriage, an end yarn hook(33), and an end yarn presser(34). The stopper body has a stopper portion. The stopper portion of the stopper body supports the end presser so that the stopper body stops the end yarn presser from moving from a presser evacuation position toward a 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. An external force is applied to the stopper body through movement of the carriage to move the stopper body relatively to the machine, thereby canceling the supporting of the end yarn presser by the stopper portion of the stopper body.

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 cross over yarn when clamping single yarn. 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.

The present invention is directed to a guide rail extending in the left and right direction, a base mounted on the guide rail and slidingly displaced along the guide rail, a catching position for capturing a thread installed and fed to the base, and a hook evacuation position to evacuate from a single needle. A single thread hook configured to be displaceable, a pinch hook provided on the aircraft and positioned in a trapping position to cooperate with a single thread hook positioned at the capturing position, and a pinching position for pinching the thread caught on the single thread hook and a presser evacuation position to evacuate from the knitting needle. A single yarn presser to be driven, a first drive mechanism for sliding the aircraft along the guide rail, a second drive mechanism for displacing the single yarn hook over the capturing position and the hook evacuation position, and a single yarn in conjunction with the displacement movement of the single yarn hook Interlocking force that gives force to displace presser to single yarn presser According to a single yarn insertion device having and holding the yarn feeding is be provided in the flat knitting machine main body,

A stopper which is provided on the gas and which is displaced relative to the gas and supports a single yarn presser which is displaced from the presser evacuation position toward the intervening position to block the displacement and waits for the single yarn presser at the standby position evacuated from the yarn to be fed. The stopper portion further comprises a sieve, wherein the stopper is a single yarn inserting device, wherein an external force relatively displaced with respect to the body is applied to the stopper body, and the stopper body is displaced relative to the body, thereby releasing the support of the single yarn presser waiting at the standby position. .

In addition, in the present invention, the stopper body is formed with a pressing portion for contacting when the contact portion formed on either the carriage or the yarn feeding portion of the transverse knitting machine body moves in the left-right direction, and contacting the pressing portion when the contact portion moves in the left-right direction. As a result, the stopper body is applied with an external force that is relatively displaced relative to the body, thereby releasing the support of the single yarn presser by the stopper part.

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 an external force is applied to the stopper body in a natural state while the thread is caught on the single yarn hook, and the stopper body is displaced relative to the body, the single yarn presser releases the support by the stopper and shifts from the standby position to the pinching position. do. As a result, the single 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.

According to the present invention, the contact portion formed in the carriage or the yarn feeding portion contacts the pressing portion of the stopper body, so that the yarn in which the single yarn presser supported by the stopper is separated from the stopper portion and caught by the single yarn hook can be pinched. Therefore, a new drive mechanism for driving the single yarn presser is not required, and an increase in the number of parts can be prevented. In addition, the timing of sandwiching the yarn can be matched with the timing of movement of the carriage or the yarn feeder, whereby the deviation of the sandwiching of the single yarn can be prevented.

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 extends 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. Figure 2 is a side view showing a glove knitting machine 2. 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 and 13b for advancing and knitting the knitting needles 7 and carriage rails 15f and 15b extending in the lateral direction and guiding the carriages 13f and 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 an apparatus capable of capturing and releasing one end portion of the cross thread cut in the state in which the cross yarn generated when the respective finger portions are sequentially knitted, cut in the held state, and cut after cutting. 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. For example, the technique disclosed in Japanese Patent Application Laid-Open No. 53-1863 can be applied.

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, and the longitudinal direction thereof extends in the left and right direction, so that both ends in the longitudinal direction are supported by the support bracket 18. The guide rail 23 is disposed 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 inside 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 a left side view of the single yarn inserting device main body 24; Fig. 5 is an exploded front view showing the single yarn inserting device main body 24 in an exploded manner. The single yarn inserting device main body 24 includes a base 31, a stopper body 32, a single yarn hook 33, a single yarn presser 34, a first guide member 35a, a second guide member 35b, a spring member 36, and a cover. A member 37 is provided. The base 31 includes a substantially rectangular plate portion 41, a rack attachment portion 47, and a slide portion 42. When the plate portion 41 is assembled as the single yarn inserting device 1, the plate portion 41 faces one surface 23a in the thickness direction of the guide rail 23. The longitudinal direction A, the width direction B, and the thickness direction C of the plate part 41 follow the longitudinal direction, the width direction, and the thickness direction of the guide rail 23, respectively. Hereinafter, one longitudinal direction of the plate part 41 is referred to as the left direction A1, and the other longitudinal direction of the plate part 41 is referred to as the right direction A2 as the left direction of the paper. In addition, one width direction is called B1 below, and the other width direction is called upper B2. In addition, one thickness direction is called surface direction C1, and the other thickness direction is called back surface direction C2.

In addition, the plate portion 41 is formed with a receiving hole 98 that penetrates in the thickness direction, and a receiving hole portion 44 defining the receiving hole 98 is formed. The receiving hole 98 is a slit-shaped hole extending in the left and right directions A of the plate portion 41. In addition, the receiving hole 44 is provided with a connection hole 160 for connecting the stopper body 32. The slide portion 42 is formed with a rail groove portion so that the upper and lower ends of the guide rail 23 are slidably inserted in the left and right directions A. The base 31 is attached to the guide rail 23 by engaging the rail groove part of the slide part 42 with the guide rail 23, and is capable of sliding displacement in the left-right direction A with respect to the guide rail 23. FIG.

The plate portion 41 is formed with a screw hole portion 97 for the cover member for fixing the cover member 37. In the plate portion 41, two positioning pieces 130a and 130b for positioning each of the guide members 35a and 35b and the raised portions 112 are formed, respectively. Each positioning piece 130a, 130b protrudes from the plate portion 41 in the surface direction C1. The raised portion 112 is formed for positioning of the single yarn hook 33, the single yarn presser 34, and the cover member 37, and protrudes from the plate portion 41 in the surface direction C1. The raised part 112 is continuous with the screw hole part 97 for a cover member, and is formed in circular ring shape of the same axis as the inner side screw of the screw hole part 97 for cover member. Further, the plate portion 41 is formed with roller holes 131a and 131b into which two rollers 65a and 65b of the single yarn hook 33 are inserted, respectively. Each roller hole 131a, 131b penetrates the plate part 41 in the thickness direction.

FIG. 6 is a cross-sectional view showing the base 31 and the stopper body 32 as viewed from the section VI-VI of FIG. 3; FIG. Fig. 7 is a sectional view showing the gas 31 and the stopper body 32 in their natural state. 6 and 7 omit parts other than the base 31 and the stopper body 32, respectively. The stopper body 32 is formed by an elongated plate member. The stopper body 32 is accommodated in the receiving hole 98 of the plate part 41 in the thickness direction along the vertical direction B of the plate part 41, and the longitudinal direction along the left-right direction A of the plate part 41.

The stopper body 32 includes a branch portion 150 formed at the central portion in the longitudinal direction, a pressing portion 151 formed at one end in the longitudinal direction, and an action point portion formed at the other end in the longitudinal direction. 152 and an elastic force imparting unit 153 are provided. At the point portion 150, a fastening hole portion 156 having a through hole penetrating in the thickness direction is formed. In the state where the through hole of the fastening hole 156 of the stopper body 32 and the connecting hole 160 of the receiving hole 44 of the plate part 41 are arranged on the same axis, the pin member 154 penetrating through the connecting hole 160 is caulked to stop the body 32. And gas 31 are connected. The stopper body 32 is connected to the base 31 so as to be capable of relative angular displacement about the axis L2 of the connection hole 160 of the plate portion 41.

In the stopper body 32, in the state connected to the base 31, the pressing section 151 is disposed in the right direction A2 of the plate section 41, and the working point section 152 is arranged in the left direction Al of the plate section 41. The stopper body 32 is formed with a stepped portion 155 that is bent downward at a position that advances from the point portion 150 to the pressing portion 151 side. The step portion 155 passes below the roller hole 131a below the plate portion 41 and protrudes downward from the lower end portion of the base 31. The pressurizing unit 151 is disposed in the region of the lower end of the base 31 in succession to the lower end of the step 155. As shown in Fig. 7, in the natural state where no external force is applied from the outside, the pressing portion 151 includes a protrusion 203 protruding from the back surface 201 of the base 31 in the back direction C2. The edge of the back surface direction C2 of the protrusion part 203 is formed in the shape of an arc which swelled smoothly in the back surface direction C2.

The working point portion 152 is disposed on the side opposite to the pressing portion 151 with the point portion 150 interposed therebetween. In the natural state, as shown in FIG. 7, the working point portion 152 includes a stopper portion 204 protruding from the surface of the base 31. As shown in FIG. The edge of the surface direction C1 of the stopper part 204 is formed in the shape of an arc which swelled smoothly in the surface direction C1. The stopper body 32 is angularly displaced around the axis L2 of the connecting hole 160 with the point portion 150 as the point. Therefore, when an external force is applied from the natural state shown in Fig. 7 and the pressing portion 151 is displaced in the surface direction C1, the action point portion 152 is displaced from the natural state in the back direction C2 as shown in FIG.

The elastic force applying unit 153 provides an elastic force for displacing the pressing unit 151 in the back direction C2 when the pressing unit 151 is displaced in the surface direction C1 in the natural state. The elastic force applying unit 153 branches from the point portion 150 with respect to the portion 164 extending from the point portion 150 to the working point portion 152 and extends in the left and right direction A. FIG. The end part 162 of the elastic force provision part 153 is supported by the support part 161 formed in the base 31. As shown in FIG. The oil end 162 of the elastic force applying unit 153 is supported by the base 31, so that the pressurizing unit 151 protrudes from the base 31 in the back direction C2 in the natural state.

When the external force is applied from this state and the pressing part 151 is displaced in the surface direction C1 or the working point part 152 is displaced in the rear direction C2, the elastic force applying part 153 elastically deforms according to the angular displacement of the point part 150 to restore the natural state. To produce. As the external force is released, the stopper body 32 is restored to the natural state by the north power.

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 and 64b branched from the central portion 61c in the longitudinal direction and extending along the longitudinal direction and extending in the width direction, respectively.

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 formed around 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. In the engaging hole portion 66, a circular first through hole 95 and a second through hole 96 connected to the first through hole 95 and formed in a substantially fan shape are formed. The hook bend part 62 has the hook main body part 61 continuous in the base end part, and the capture part 67 is formed in the end part 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 includes a proximal end 71, a pressurizing portion 73, a stopper accommodating portion 75, and a connecting portion 76. The connecting portion 76 is formed in a substantially L-shape. The base end 71 is continuous at one end and the pressing part 73 is continuous at the other end. 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 gas 31. The stopper accommodating portion 75 is disposed adjacent to the connecting portion 76 and protrudes from the connecting portion 76 to the side opposite to the base end 71. The stopper accommodating portion 75 is formed by retracting the side surface 163 on the pressing portion side from the pressing portion 73. The stopper accommodating portion 75 is formed such that when the single yarn presser 34 is positioned at the standby position, the side surface 163 on the pressing portion side is substantially parallel in the left and right direction A, and is disposed at a position opposite to the working point portion 152 of the stopper 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 base end 71 of the single yarn presser 34 is engaged with the engagement hole portion 66 of the single yarn hook 33, the central axis line L1 of the first through hole 95 and the base end portion 71 become 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 first guide member 35a is fixed to the base 31 by the screw member 166. In this state, the first guide member 35a is prevented from being angularly displaced about the screw hole 52b of the plate portion 41 by contacting the first positioning piece 130a. The first guide member 35a is formed in a board shape and is disposed at intervals between the plate portion 41 while being fixed to the base 31, and a part of the single yarn presser 34 is disposed at the interval. The first guide member 35a guides the single yarn presser 34 by preventing displacement in the surface direction C1. The second guide member 35b includes a fixing portion 170, a stepped portion 171, and a guide portion 172. The fixing part 170 and the guide part 172 are connected with the step part 171 therebetween, and are connected so that a difference may be provided in the thickness direction by the step part 171. The fixing portion 170 is fixed to the base 31 by the screw member 174 and in this state is prevented from being angularly displaced about the screw hole portion 52a of the plate portion 41 by contacting the second positioning piece 130b. The 2nd guide member 35b is arrange | positioned at intervals between the board part 41 in the state fixed to the base | substrate 31, and a part of single yarn hook 33 is arrange | positioned at the space | interval. When the single yarn hook 33 reaches the predetermined lowest position, the fixing portion 170 of the second guide member 35b contacts one leg portion 64a of the single yarn hook 33 to prevent the single yarn hook 33 from moving further downward. The second guide member 35b guides the single yarn hook 33 by preventing displacement in the surface direction C1.

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 near the base end 71. The spring member 36 is linked with the displacement movement of the single yarn hook 33, and serves as an interlocking mechanism for applying the force for displacing the single yarn presser 34 to the single yarn presser. 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, and the spring member 36 from being separated from the base 31. The cover member 37 is formed in a disk shape with an insertion hole formed in the center thereof.

The parts 31 to 37 constituting the single yarn inserting device main body 24 can be integrally assembled. As shown in Fig. 4, the stopper body 32 is connected to the base 31 by the pin member 154 in the state of being accommodated in the receiving hole 98. In addition, the single yarn hook 33 and the single yarn presser 34 are sequentially stacked on the plate portion 41 in the thickness direction while the base 31 is coupled to the guide rail 23, so that the screw hole portions 97 for the cover member of the base 31 and the first single hook 33 The through hole 95 and the central axis L1 of each of the base end portions 71 of the single yarn presser 34 are arranged to be the same axis.

The single yarn hook 33 can be rotated over the hook evacuation position to evacuate from the plurality of single needles 7 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. In addition, the single yarn presser 34 rotates about the angular displacement axis L1, thereby cooperating with the single yarn hook 33 positioned at the capturing position to sandwich the thread captured by the single yarn hook 33, and is located above the pinching position. It is provided in the base 31 so that rotation displacement is possible over the presser evacuation position evacuating from the needle 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 so as to be rotatable around the angular displacement axis L1 together with the single yarn hook 33 in a 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.

In addition, when the single yarn presser 34 rotates from the presser evacuation position to the clamping position while the stopper body 32 is in a natural state, the side surface 163 of the stopper accommodating portion 75 is the working point portion of the stopper body 32 before reaching the clamping position. It is formed in contact with the stopper portion 204 of 152 from above. When the side surface 163 of the stopper accommodating portion 75 contacts the stopper portion 204, the lowering during rotation is restricted. The position where this drop is restricted becomes the standby position of the single yarn presser 34. Further, the single yarn presser 34 is released from contact with the stopper portion 204 so that the lowering limit at the time of rotation is eliminated and the pinching position can be reached.

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. Accordingly, by driving the first driving motor 81, the rack 82 and the gas 31 can be reciprocated in the left and right 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 86 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. As the lever 89 moves up and down, the single yarn hook 33 is angularly displaced about the angular displacement axis L1 in accordance with the displacements of the rollers 65a and 65b, and the capturing 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

The guide rail 23 is disposed at a position close to the carriage 13b. The carriage 13b is formed at the position where the carriage 13b is in contact with the pressing portion 151 of the stopper body 32 in its natural state when passing through the base 31 in the left-right direction A. The contact portion applies an external force toward the surface direction C1 to the pressing portion 151 by contacting the pressing portion 151. In this way, in the stopper body 32 given the external force, the pressing section 151 is displaced in the surface direction C1 and the working point section 152 is displaced in the rear direction C2 with respect to the natural state.

 Fig. 8 is a front view showing the operation of the single yarn inserting device main body 24 in each step with respect to the procedure of inserting the single yarn into the finger portion. Fig. 9 is a sectional view showing the operation of the single yarn inserting device main body 24. Fig. 10 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. 8 and 9 show only the stopper body 32, the single yarn hook 33, and the single yarn presser 34. 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 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. This cuts the cross yarn and starts knitting the next finger. 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. Further, the trapping portion 67 and the pressing portion 73 are allowed to stand at each evacuation position (Figs. 8A and 9A). In the evacuation position, the hook bent portion 62 of the single threaded hook 33 faces the action point portion 152, so that the action point portion 152 is maintained in the state displaced in the back direction C2, and the pressing portion 151 enters the surface direction C1 against the back surface 201 of the base 31. Becomes

When the first finger connecting 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. 10A), 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. 10B). The cutting gripping apparatus 21 is continuously operated to cut and hold the cross yarn (FIG. 10C). 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. Next, the single yarn insertion device main body 24 is moved by the first drive motor 81 toward the single yarn clamping position where the knitting yarn is to be held in the leftward direction A1 from the section P (Fig. 10C).

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 to rotate the single yarn hook 33 from the hook evacuation position toward the capture position (Figs. 8B and 9B). When the single yarn hook 33 rotates, 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 rotates from the presser evacuation position toward the pinching position in conjunction with the rotational displacement of the single yarn hook 33. Displace. First, the single yarn hook 33 rotates while sliding to the working point portion 152 of the stopper body 32. Next, the single yarn hook 33 and the single yarn presser 34 are out of the working point portion 152. As a result, the opposing state of the single yarn hook 33 and the single yarn presser 34 and the working point portion 152 is released, and the stopper body 32 is restored to its natural state by the drum power.

When the second drive motor 85 is continuously operated to continuously rotate the single yarn hook 33 and the single yarn presser 34, the single yarn hook 33 is supported by the fixing portion 170 of the second guide member 35b to reach the hand capturing position. At this time, the single yarn presser 34 prevents the stopper accommodating portion 75 from reaching the sandwiching position by contacting the stopper portion 204 of the working point portion 152 and waits at the standby position (Figs. 8C and 9C). At this time, the single yarn hook 33 waits at the standby position with the elastic force toward the clamping position given by the spring member 36. Thus, the trapping part 67 and the pressurizing part 73 open | release in the up-down direction B, and it becomes a state which can capture the yarn knitting by the trapping part 67. FIG. The cutting and holding device 21 is moved in the leftward direction A1 from the capture section 67 while the capture section 67 and the press section 73 are opened (FIG. 10D).

In this state, the single yarn inserting device main body 24 moves the carriage 13 together with the yarn feeder 19 in the right direction A2, and the knitting yarns fed from the yarn feeder 19 are captured by the catcher 67. The knitting of the tip of the finger in the next finger is started. When the carriage 13 passes through the single yarn inserter main body 24 in the horizontal direction A, the contact portion 200 formed on the carriage 13 contacts the pressing portion 151 of the stopper body 32 to displace the pressing portion 151 in the surface direction C1 with respect to the base 31. . As a result, the stopper body 32 is angularly displaced around the point portion 150, and the working point portion 152 is displaced in the back direction C2 (Fig. 9D).

At this time, the stopper part 204 is separated from the stopper accommodating part 75 in the back direction C2, and the support of the single yarn presser 34 by the stopper part 204 is released. As a result, the single yarn presser 34 is rotated about the angular displacement axis L1 toward the clamping position by the elastic force of the spring member 36 (Fig. 8D). The single yarn 105 captured by the capture section 67 is sandwiched (Figs. 8E and 10E). In addition, when the single yarn presser 34 moves from the standby position to the clamping position, the stopper accommodating portion 75 faces the working point portion 152, thereby restoring the stopper body 32 to its natural state (Fig. 9E). In this state, the knitting yarns fed from the yarn feeding section 19 are captured by the catching section 67, and the yarns are fed to the section P, and the knitting of the finger tip portion of the next finger portion is started by the plurality of knitting needles 7 (FIG. 10F).

Next, the cutting gripping apparatus 21 is driven while the single yarn 105 is sandwiched 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 as to rotate the single yarn hook 33 from the capture 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 (Figs. 8F and 9F). At this time, the single yarn hook 33 and the single yarn presser 34 reach the respective evacuation positions in a state where the catching portion 67 lifts the pressing portion 73 upwardly and sandwiches the single yarn 105. The single yarn hook 33 and the single yarn presser 34 sandwich the single yarn 105 in a state where they are respectively located at the evacuation position, and evacuate the single yarn 105 from the plurality of knitting needles 7 (Figs. 8G, 9G, and 10G). This prevents the single yarn 105 from being entangled during knitting of the next finger portion. In addition, when the evacuated position is evacuated, the single yarn hook 33 faces the working point portion 152, so that the working point portion 152 is displaced from the natural state in the back direction C2 and the pressing portion 151 is displaced from the natural state in the surface direction C1.

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. 10H), 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. 10i). As a result, the single yarn hook 33 and the single yarn presser 34 are separated in the up-and-down direction B, the single yarn 105 is separated from the single yarn hook 33, and the sandwiched single yarn 105 is inserted into the next finger portion. Thereafter, 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 A2 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. 10E and 10F, the single yarn 105 is sandwiched by the single yarn inserting device main body 24 before the knitting of the finger tip portion of the next finger portion. The single yarn 105 may be sandwiched by the single yarn inserting device main body 24 after the course of the course.

Fig. 11 is a diagram schematically showing a single yarn clamping operation of the single yarn inserting device main body 24; In the state where the single yarn inserting device main body 24 is ready for capturing, that is, in the state shown in FIG. 10D, a gap X is formed between the catch portion 67 of the single yarn hook 33 and the pressing portion 73 of the single yarn presser 34. Further, with respect to the single yarn inserter main body 24, the hook portion of the cutting gripping apparatus 21, the contact portion 200 of the yarn feeding portion 19, and the carriage 13 are arranged in the leftward direction A1 (Fig. 11A).

From this state, the yarn feeding portion 19 moves to the rightward direction A2 from the single yarn inserting device main body 24, so that the single yarn 105 extending from the cutting holding device 21 to the yarn feeding portion 19 is pressurized by the catch portion 67 of the single yarn hook 33 and the single yarn presser 34. It is installed to pass between parts 73. In addition, the carriage 13 moves in the direction A2 to the right of the single yarn inserting device main body 24, so that the contact portion 200 of the carriage 13 contacts the pressing portion 151 to release the support of the single yarn presser 34 so that the single yarn 105 captured by the capturing portion 67 is cut off. Seo 34 intervenes (Figs. 11B and 10E). In this state, the knitting needle 7 located in the direction A2 to the right of the single yarn inserting device main body 24 catches the thread extending between the single yarn inserting device main body 24 and the yarn feeding unit 19 to start initial knitting.

In this embodiment, the single yarn hook 33 has a capture surface 190 extending in the left-right 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, in the case where the finger tip portion of the next finger portion 301 is knitted after the single yarn inserting device 1 is held by the single yarn inserting device 1, the first knitting needle 7 used for knitting the next finger portion can be lowered to catch the single yarn. It is possible to prevent poor threading of the thread and to stably thread the thread of the needle. 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. 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 direction, 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, the tension fluctuation generated when the single yarn is held is prevented. It can be suppressed. Accordingly, the single yarn can be clamped in advance by the single yarn inserting device 1 before releasing the single yarn by the cutting gripping apparatus 21, thereby preventing the tension from loosening and preventing the single yarn from being caught. Can firmly pinch single shots. Thereby, single yarn can be inserted reliably inside knitted fabrics, such as gloves.

Further, the support of the single yarn presser 34 by the stopper portion 204 is released only by passing the carriage 13 in the left-right direction A with respect to the single yarn inserting device main body 24, so that the single yarn 105 can be pinched. The operation of moving the carriage 13 in the left and right directions A is one of a series of operations for knitting the next finger portion after the first finger portion is knitted. Therefore, the clamping of the single yarn can be facilitated without changing the operation program of the control unit for controlling each drive unit of the knitting machine in order to sandwich the single yarn 105.

In addition, since the drive timing of the single yarn inserting device is determined according to the movement of the carriage 13, it is possible to prevent the difference in the sandwiching timing from occurring without the need to separately adjust the moving timing of the carriage 13 and the drive timing of the single yarn inserting device. In addition, in order to realize the synchronization between the carriage 13 and the single yarn inserter 24, it is not necessary to set the resolution of the left and right movement of the carriage 13 with high precision, thereby simplifying the configuration. . In addition, since a new drive mechanism for driving the stopper body 32 is not required, the number of parts can be reduced, so that the configuration can be simplified.

In addition, the guide members 35a and 35b prevent the single yarn hook 33 and the single yarn presser 34 from being separated from the plate portion 41. As a result, the single yarn hook 33 and the single yarn presser 34 can be prevented from shaking in the thickness direction of the base body 31 when rotating. Thereby, the acting point part 152 of the stopper body 32 is pressed by the single yarn hook 33 and the single yarn presser 34 in the back direction C2, so that the stopper body 32 can be relatively displaced with respect to the base 31. In addition, since the stopper body 32 and the elastic force applying unit 153 are integrally formed, the number of parts can be reduced.

In the present embodiment, the contact portion 200 is formed in the carriage 13 in contact with the pressing portion 151 of the stopper body 32. However, as long as the drive mechanism can apply the external force to the stopper body 32, the stopper body 32 may be provided with an external force. For example, as the existing device, the contact portion 200 may be formed in the yarn feeding portion 19 instead of the carriage 13. In addition, as shown in FIG. 9D, the contact portion 200 is formed in a long shape extending in the left-right direction A, thereby preventing the release of support of the single yarn presser 34. Further, even when the carriage 13 crosses the single yarn inserting device main body 24 from the right direction A2 to the left direction A1, the single yarn presser 34 can be released. Further, in the stopper body 32, the edge of the protruding portion of the pressing portion 151 is formed to have a smooth shape, so that the impact during the collision between the contact portion 200 and the pressing portion 151 can be reduced.

In addition, when the single yarn hook 33 and the single yarn presser 34 are positioned at the standby position, the protrusion of the pressing portion 151 of the stopper body 32 is configured to enter the gas 31, thereby preventing the pressing portion 151 from contacting the contact portion 200 undesirably. can do. Further, since the edge of the working point portion 152 of the stopper body 32 is formed in a smooth shape, the impact upon contact with the working point portion 152 when the single yarn hook 33 and the single yarn presser 34 return to the standby position can be reduced.

In addition, in the present embodiment, the method of inserting the single yarn into the next finger portion has been described, but the single yarn of the first finger portion may be sandwiched by the single yarn inserting device main body 24 so that the single yarn is 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. The stopper body 32 and the elastic force applying unit 153 may be formed separately. 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 enlarged left side view of the single yarn inserting device main body 24.

5 is an exploded front view showing the single yarn inserting device main body 24 in an exploded manner.

FIG. 6 is a cross-sectional view showing the base 31 and the stopper body 32 as viewed from the section VI-VI of FIG. 3; FIG.

Fig. 7 is a sectional view showing the gas 39 and the stopper body 32 in their natural state.

8 is a front view showing the operation of the single yarn inserting device main body 24;

Fig. 9 is a sectional view showing the operation of the single yarn inserting device main body 24.

Fig. 10 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.

Fig. 11 is a diagram schematically showing a single yarn clamping operation of the single yarn inserting device main body 24;

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

1 Single thread inserting device

2 glove knitting machine

13 carriage

19 courier

23 guide rail

24 Single thread insertion device

25 First Driving Mechanism

26 2nd Drive Mechanism

31 gas

32 stopper body

33 Single Hook

34 single yarn presser

36 spring members

44 hole

Claims (3)

From a guide rail extending in the left and right directions, a base mounted on the guide rail and slidingly displaced along the guide rail, and a capturing position and knitting needle for capturing a thread installed and steeped in the body; Single thread hook configured to be displaceable over the evacuated hook evacuation position, and a pinching position for pinching a thread captured by the single thread hook in cooperation with the single thread hook installed on the aircraft and positioned at the capture position; Single yarn presser configured to be displaceable across the presser evacuation position evacuated from the single needle, a first drive mechanism for sliding the aircraft along the guide rail, and a single yarn hook over the capture position and the hook evacuation position. And a second drive mechanism for driving the displacement of the single yarn hook in conjunction with the displacement movement of the single yarn hook. In the single yarn inserting device which is provided with the interlocking mechanism provided to a single yarn presser, and interposes the yarn which is provided in the flat knitting machine main body, and is rapidly fed, A stopper which is provided on the gas and which has a stopper portion which is relatively displaced with respect to the gas and supports a single yarn presser which is displaced from the presser evacuation position toward the pinching position to block the displacement and waits for the single yarn presser at the standby position evacuated from the yarn to be fed. Further equipped with a sieve, And the stopper portion releases the support of the single yarn presser waiting in the standby position by applying the external force relative to the gas to the stopper body and the stopper body relative displacement to the gas. The method of claim 1, The stopper body is formed with a pressing portion which contacts when the contact portion formed on either the carriage or the yarn feeding portion of the flat knitting machine body moves in the left and right directions, The stopper body is subjected to an external force relatively displaced from the body by contacting the pressing unit when the contact portion moves in the left and right direction, thereby releasing the support of the single yarn presser by the stopper portion. 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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