KR20050014665A - Method and apparatus for tightening and cutting the knitting yarn - Google Patents

Abstract

PURPOSE: A knitting-yarn holding and cutting method and a device are capable of miniaturizing a carriage because a knitting cam is used on driving of a cutter bar and a hook bar, getting an enough advance and retreat stroke because the advance and retreat stroke of the cutter bar is increased by a cam for setting stitch, holding and cutting knitting-yarn in proper time, holding the knitting-yarn on the hook bar selected precisely and cutting the knitting-yarn with the cutter bar. CONSTITUTION: A knitting-yarn holding and cutting method is as follows: arranging many needles(47) on a needle bed(2) of a flat knitting machine; traveling a carriage(38) in a length direction of the needle bed; driving the needle by using a knitting cam(39) set on the carriage; supplying knitting-yarn from a yarn feeding inlet(46) interlocked with the carriage to the needle to form a course of knit fabric; protruding maximally the needle from the needle bed for knitting; changing an interlocking timing of the yarn feeding inlet into the top position of the knitting cam protruding maximally the needle when the knitting-yarn is held and cut; driving a cutter bar(27) and a hook bar(7) with the knitting cam to protrude the cutter bar and the hook bar from the needle bed and to be inserted into the needle bed; and then holding and cutting the knitting-yarn which is not used on weaving a next course. The knitting-yarn holding and cutting device comprises: the needles; the needle bed; the carriage; the knitting cam driving the needle; the yarn feeding inlet which is interlocked with the carriage, supplying the knitting-yarn into the needle; an interlocking-position switching device protruding maximally the needle from the needle bed for knitting, setting an interlocking-position of the yarn feeding inlet to the carriage in accordance with a middle position inserting the knitting cam and switching the interlocking-position in accordance with the top position of the knitting cam protruded maximally the needle from the needle bed for holding and cutting the knitting yarn; a holding and cutting selection device capable of selecting a working condition or a non-working condition; and an insertion selecting device working the knitting cam on the cutter bar and the hook bar, inserting the hook bar more and more, holding the knitting-yarn and inserting the cutter bar more and more to cut the knitting yarn.

Description

Knitting support cutting method and device {METHOD AND APPARATUS FOR TIGHTENING AND CUTTING THE KNITTING YARN}

The present invention, when knitting a knitted fabric using a plurality of types of knitting in a flat knitting machine, the knitting of a predetermined course is finished, and knitting is not used for knitting of the next course. Support cutting of knitting yarn which is supported by a hook bar between the yarn feeding port and cut between the supporting portion of the hook bar and the knitted fabric by a cutter bar. ) Method and apparatus.

Background Art Conventionally, in the flat knitting machine, a plurality of types of knitting yarns, for example, knitting yarns of different colors are alternately used, and multicolor knitting is performed. In addition, even if it seems that a single knitting yarn is used as a product, a thermal fusion yarn or an elastic yarn may be used for the end portion of the knitted fabric. In order to use a plurality of knitting yarns, a plurality of needle yarns are formed in the needle bed gap. When a carriage moves along a needle bed in which a plurality of needles are arranged, and a knitting cam is installed on the carriage, one of the plurality of yarn feeders is linked to the carriage.動). The interlocking position of the yarn feeding port is in the middle of pulling in from the needle bed gap after advancing the knitting needle to the needle bed gap by the knitting cam. The feeder that is not linked to the carriage stops and waits. In the yarn feeder in the air, the tip of the knitting yarn is supported by the support of the knitting support cutting device provided at the end of the needle bed. When a knitting course using a knitting yarn is terminated, and the knitting yarn stops after being used for a while after the next course, the stopping knitting yarn is supported at the support of the knitting support cutting device, and then at the cutting portion of the knitting support cutting device. By cutting between the knitted fabric and the support.

14, 15, 16, and 17 show a configuration related to the knitting support cutting device provided at the end of the needle bed of the flat knitting machine (see Patent Document 1, for example). Fig. 14 shows a planar configuration, Fig. 15 shows a side cross-sectional configuration regarding the support portion, Fig. 16 shows a side cross-sectional configuration regarding the cutting portion, and Fig. 17 shows a cam mechanism provided in the carriage. Indicates a batch.

As shown in Fig. 14, the knitting support cutting device 51 is provided at the end of the needle bed 52, and includes, for example, four sets of support portions 53 and one set of cut portions 54. do. In the needle bed 52, plates 55 are provided at equal intervals, and guide grooves 56 are formed between the plates 55. As shown in Fig. 15, the support portion 53 includes a hook bar 57 which is capable of advancing and displacing the guide groove 56 with respect to the needle bed gap. The hook bar 57 is provided with the hook 58 at the front end, and the tip of the hook bar jack 59 is coupled to the rear end. Since the hook bar jack 59 is tensioned by a spring 61 with respect to the support portion 60 integral with the needle bed 52, the hook bar 57 is also pressurized so as to be drawn into the needle bed 52. do. A hook bar selector 62 is provided above the hook bar jack 59 within the guide groove 56. The tip of the hook bar selector 62 is in contact with the butt 63 of the hook bar jack 59, and includes butts 64, 65, and 66.

As shown in Fig. 17, the carriage is provided with an actuator 67 for needle selection, and is provided with four rotary pieces 68a, 68b, 68c, and 68d which are selectively operable. The central butt 66 in the hook bar selector 62 shown in Fig. 15 is used for selection by the actuator 67, and is formed at four different positions in the four support portions 53, respectively. Plate wires 69 and 70 penetrate plate 55 perpendicular to the ground, ie in the longitudinal direction of needle bed 52. The plate wire 69 is a stopper at the retracted position of the hook bar jack 59, and at the retracted position, the plate wire 70 is engaged with the recess 71 of the hook bar selector 62 so that the point of rotational displacement is do. A band 72 is inserted into the top of the plate 55. The butt 74 is formed in the hook bar 57.

As shown in Fig. 16, in the cutting section 54, the cutter bar 77, the cutter bar jack 78, and the cutter bar selector 79 move in and out of the guide groove 56 with respect to the needle bed gap. Displacement is possible. The tip of the cutter bar 77 is bent in the shape of a claw, and a cutter blade 80 is formed at the rear end of the tip. Butts 81 and 82 are formed in the cutter bar 77 and the cutter bar jack 78, respectively. A fixed blade 83 is formed near the top of the plate 55 in contact with the back surface of the cutter blade 80 by the cutter bar 77, and the knitting yarn can be cut by cutting the knitting yarn with the fixed blade 83 and the cutter blade 80. . The cutter bar selector 79 has the same structure as the hook bar selector 62, and the butt 66 is formed at any one of positions corresponding to the four rotating pieces 68a, 68b, 68c, and 68d.

As shown in Fig. 17, the fingerboard 90 of the carriage on which the knitting cam 89 is mounted includes an actuator 67, a selector return cam 91, a selector lift cam 92, and a selector guide. Cams (selector guide cams 93), hook bar lift cams 94 and cutter lower cams 95. When the carriage moves along the needle bed 52 of Fig. 14, the yarn feed opening 96 is interlocked to supply the knitting needle 98 to the knitting needle 97 at positions 96a and 96b which are displaced downstream from the normal position of the knitting cam 89 in the moving direction. .

In the case of operating the knitting support cutting device 51, when the carriage passes through the end of the needle bed 52, the rotary pieces 68a, 68b, 68c, and 68d of the actuator 67 are selectively evacuated. In the position A of Fig. 17, the tail portions of the hook bar selector 62 and the cutter bar selector 79 are pushed up by the selector return cam 91. The hook bar selector 62 and the cutter bar selector 79 selected are rotated around the recess 71 joined to the plate wire 70 because the butt 66 does not contact the evacuated rotating pieces 68a, 68b, 68c, and 68d. It rises from the inside of the guide groove 56, and the butt 65 of the tail part advances to the needle bed gap side under the action of the selector raising cam 92. In the position B of FIG. 17, the hook bar selector 62 and the butt 64 of the cutter bar selector 79 contact with the downwardly inclined surface 93a of the selector guide cam 93 to start the retreat. The butt 74 of the hook bar 57 and the butt 81 of the cutter bar 77 act on the upward inclined surface 94a of the hook bar elevating cam 94, so that the hook bar 57 and the cutter bar 77 advance to the needle bed gap side. The knitting yarn 98 is supplied from the yarn feeding port 96 in the state of advancing to the needle bed gap side as much as possible.

In the position C of Fig. 17, the hook bar 57, which is pulled by the spring 61, begins to return to the needle bed 62 along the lower inclined surface 94b of the hook bar elevating cam 94, and the hook bar elevating cam 94 When the descending inclined surface 94b is finished, the hook bar 57 is pulled back by the spring 61 to insert and support the knitting yarn 98 between the tip of the plate 55 and the hook 58. Since the cutter bar 77 is not pulled back to the needle bed 52, the cutter bar 77 continues to protrude up to the position D in FIG. 17, and the butt 81 contacts the downward inclined surface 95a of the cutter lower cam 95. The cutter blade 80 cuts and cuts the knitting yarn 98 close to the fixed blade 83 as it descends along.

Patent Document 1: Japanese Patent Application Laid-Open No. 1-56175 (Pages 3, 4, 1, 2C, 2D, 5)

In the knitting support cutting device 51 shown in Figs. 14 to 17, the inclined surfaces 94a of the selection by the actuator 67 and the selector lift cam 92 and the hook bar lift cam 94 are shared by the support 53 and the cut 54. In addition, since the actuator 6 is commonly used for needle selection of the single needle 97, the carriage can be miniaturized. However, the hook bar lifting cam 94 is a dedicated cam installed separately from the knitting cam 89. The arrangement position of the hook bar elevating cam 94 is behind the knitting cam 89 with respect to the moving direction of the carriage. In addition, regarding the movement of the carriage, since the supporting portion 53 is outside the end of the needle bed 52 rather than the cutting portion 54, the cutting portion 54 first receives the action of the carriage and the supporting portion 53 receives the carriage action. After supporting the knitting yarn 98 at the support 53, the knitting yarn 98 must be cut at the cutting portion 54. For this reason, it is necessary to lengthen the distance of hook bar lifting cam 94 and cutter lowering cam 95. If the distance between the hook bar lifting cam 94 and the cutter lower cam 95 becomes longer, the carriage becomes larger.

When the carriage is enlarged, the needle bed 52 requires a large space on both sides of the portion where the needle needle 57 is provided, and the length of the needle bed 52 becomes long, so that the needle bed 52 is also enlarged as a flat knitting machine.

An object of the present invention is to provide a knitting cutting support method and apparatus capable of miniaturizing a carriage.

Fig. 1 is a plan view showing the overall configuration of a knitting support cutting device 1 which is one example in the practice of the present invention.

FIG. 2 is a plan view showing a partial configuration of the knitting support cutting device 1 of FIG.

3 is a side cross-sectional view of the support 3 of FIG.

4 is a side cross-sectional view of the support 3 of FIG.

5 is a side cross-sectional view of the cutout portion 4 of FIG.

6 is a side cross-sectional view of the cutout portion 4 of FIG.

7 is a plan view showing the arrangement of cam mechanisms provided in the carriage 38 of FIG.

Fig. 8 is a plan view and a side view showing the structure for supporting the knitting yarn supplied from the yarn feed port 46 by actuating the center cam 44b and the center guide cam 44c to the butt 24 of the hook bar 7 of Figs.

Fig. 9 is a plan view and a side view showing a structure for cutting the knitting yarn supplied from the yarn feed port 46 by actuating the center cam 44b and the center guide cam 44c to the butt 31 of the cutter bar 27 of Figs.

FIG. 10 is a flow chart showing a schematic procedure for carrying out the support cutting of the knitting yarn using the knitting support cutting device 1 of FIG.

FIG. 11 is a diagram showing the configuration of main parts of an example of the switching mechanism 49 in FIG.

12 is a view showing the configuration of main parts of another example of the switching mechanism 49 of FIG.

Fig. 13 is a plan view showing the arrangement of a cam mechanism provided in the carriage 108 in the case of using a latch needle for knitting, as still another embodiment of the present invention.

14 is a plan view showing a schematic configuration of a knitting support cutting device according to the prior art.

FIG. 15 is a side sectional view showing a configuration of the support of FIG. 14; FIG.

FIG. 16 is a side cross-sectional view showing a configuration of the cutting portion in FIG.

Fig. 17 is a plan view showing the arrangement of the cam mechanism of the carriage for operating the knitting support cutting device of Fig. 14;

Explanation of symbols on the main parts of the drawings

1: knitting support cutting device (編 絲 支持 切斷 裝置)

2: needle bed 3: support part

4: cutting part 5: plate

6: guide groove 7: hook bar

8: hook

9: hook bar select jack

11 spring 12 hook bar selector

13, 14, 15, 16, 24, 31, 32: Butt

17: Actuator 18a, 18b, 18c, 18d: Rotating piece

19a, 19b: plate wire

21: recess 27: cutter bar (cutter bar)

28: cutter bar select jack

29: cutter bar selector

30: cutter blade 33: fixed blade

38, 108: carriage 39, 109: knitting cam

41a: selector return cam

41b: selector lift cam

42: selector guide cam

43, 113: guide cam

44a, 114a: needle raising cam

44b, 114b: center cam

44c, 114c: center guide cam

45, 115: stitch cam 46: the yarn feeder (給 絲 口)

47: knitting needle 49: switching mechanism

100: needle bed gap

The present invention is provided by a knitting cam mounted on a carriage by traveling a carriage in the longitudinal direction of a needle bed of a flat knitting machine in which a plurality of knitting needles are arranged. A cutter bar provided at the end of the needle bed by knitting the course of the knitted fabric by supplying the knitting yarn to the knitting needle from the feeding yarn interlocked with the carriage while driving the knitting needle ( In the knitting support cutting method of supporting and cutting a knitting yarn not used for knitting of the next course in a cuter bar and a hook bar,

At the time of knitting, the interlocking timing of the yarn feeder which follows the position of the knitting cam which protrudes from the needle bed after protruding to the maximum from the needle bed, and the knitting needle at the time of the knitting cutting of the knitting needle from the needle bed Change to near the normal position of the knitting cam that protrudes best,

It is a knitting support cutting method, characterized in that for driving the cutter bar and the hook bar to protrude from the needle bed to enter the needle bed by using the knitting cam.

The present invention is also characterized in that, when the cutter bar protruding from the needle bed is drawn into the needle bed by the knitting cam, the cam for stitch setting is operated to increase the retraction stroke of the cutter bar. do.

The present invention also provides a knitting needle by feeding a knitting yarn from a yarn feeder interlocked with the carriage while driving the knitting needle by a knitting cam mounted on the carriage by driving the carriage in the longitudinal direction of the needle bed of the flat knitting machine in which a plurality of knitting needles are arranged. In the knitting support cutting device for knitting the course of the fabric, and supporting and cutting the knitting yarn not used for the knitting of the next course in the cutter bar and hook bar provided at the end of the needle bed,

The interlocking position of the yarn feeder with respect to the carriage depends on the position of the knitting cam in which the knitting needle is protruded from the needle bed at the maximum after knitting, and the knitting needle at the knitting is most protruded from the needle bed at the time of cutting of the knitting support. Interlocking position switching means for switching so as to follow the normal position of the knitting cam;

The actuation state that the knitting bar is applied to the cutter bar and the hook bar to protrude the cutter bar and the hook bar from the needle bed, and then the cutter bar does not reach cutting even if the cutter bar supports the knitting yarn, so that the hook bar is driven into the needle bed until the hook bar supports the knitting yarn. Support cutting selection means for selecting a non-working state in which a knitting cam is not acted on the cutter bar and the hook bar, and protruding from the needle bed of the cutter bar and the hook bar,支持 切斷 選擇 手段),

In the acting state by the support cutting selecting means, the cutter bar and the hook bar are protruded from the needle bed by the knitting cam, and the hook bar is further inserted to support the knitting yarn, and then the cutter bar is further introduced to cut the knitting yarn. It is a knitting support cutting device characterized in that it comprises a pull-in selecting means.

In addition, in the present invention, the knitting cam, a needle raising cam (center needle cam) and the center cam (center cam) for protruding the knitting needle, and a center guide cam (center guide cam) for introducing the protruding knitting needle to the steep position And a stitch cam for further introducing the knitting needle inserted by the center guide cam,

The pull-in selecting means includes a spring pressurizing in the direction in which the hook bar is pulled in, the hook bar is pulled out by a spring after passing through a needle lasing cam, and the cutter bar has a hook bar. It is characterized by drawing in by acting a stitch cam after drawing.

Further, in the present invention, the inlet selection means is characterized in that the inlet of the cutter bar is a stroke larger than the stroke at which the stitch becomes zero by the inlet of the knitting needle by the stitch cam.

In the present invention, the knitting cam further includes a needle rising cam and a center cam for protruding the knitting needle, a center guide cam for introducing the protruding knitting needle to a sudden feeding position, and a knitting needle inserted by the center guide cam. Including a stitch cam,

The retraction selecting means includes a spring for urging the hook bar in a retracting direction, and after passing through the center guide cam, the hook bar is retracted by the spring, and the cutter bar is trailing from the stitch cam without acting the stitch cam. It is characterized by drawing in by acting the lowering cam installed in the (後行 側).

Further, in the present invention, the linkage position switching means is provided on one side of the carriage or the feed port, and interlocking pins capable of switching a plurality of types of protrusions to the other side. pin),

The carriage or the other side of the yarn feed port is characterized in that a recess is formed to engage with the linking pin and to change the linking position of the yarn feeder with respect to the carriage in accordance with the kind of projecting state of the linking pin.

(Example)

Hereinafter, each example in implementation of this invention is demonstrated based on FIGS. In each figure, the same code | symbol is attached | subjected to the part corresponding to the part demonstrated previously, and the overlapping description is abbreviate | omitted.

1 to 7 show a schematic configuration of a knitting support cutting device 1 which is one example in the practice of the present invention. Fig. 1 shows the overall configuration of the knitting support cutting device 1 in plan view, and Fig. 2 shows an enlarged end of the needle bed 2 in which the main part of the knitting support cutting device 1 in Fig. 1 is installed. Indicates. The knitting support cutting device 1 is provided in the end part of the needle bed 2, for example, is provided with four sets of support parts 3 and one set of cutting parts 4, for example. The supporting portion 3 and the cutout portion 4 are respectively disposed in guide grooves 6 between plates 5 provided at the same intervals on the needle bed 2. The knitting support cutting device 1 is a pair of needle beds 2 arranged parallel to the front in the left and right directions of Figs. 1 and 2, and the needle bed gap between the needle beds 2 is shown in front and rear and from the front. This is a V bed flat knitting machine arranged to be inclined in an inverted V shape with each needle bed 2 viewed from the side, for example, arranged at the right end of the front needle bed. . 3 and 4 show the side cross-sectional configuration of the support 3, 5 and 6, respectively, with the advancing direction relative to the needle bed gap 100 being horizontal for convenience of explanation. . However, in the V-bed flat knitting machine, the needle bed 2 is inclined so that the intermediate surface 100a between the front and rear needle beds is actually vertical. Fig. 7 shows the arrangement of a cam mechanism provided in the carriage.

Fig. 3 shows a state in which the knitting yarn is supported by the supporting portion 3, and Fig. 4 shows a state in which knitting yarn is supplied to the supporting portion. As shown in Figs. 3 and 4, the support part 3 has a hook bar 7 inserted to slide in the guide groove 6. The hook bar 7 is provided with a hook 8 at the tip of the needle bed gap 100 side, and a shank having elasticity so that the rear portion is protruded to the upper surface of the guide groove 6. Butt 24 is formed. A hook bar select jack 9 is disposed above the rear portion of the hook bar 7 in the guide groove 6. The rear end of the hook bar 7 engages the tip of a spring 11 that engages the rear end with the needle bed 2 and the supporting portion 10 integrally therewith. The spring 11 is pressed so that the hook bar 7 enters into the needle bed 2. Above the hook bar select jack 9, a hook bar selector 12 is provided. The hook bar selector 12 is capable of contacting the butt 13 of the hook bar select jack 9 and includes butts 14, 15 and 16.

The intermediate butt 16 is provided at four different positions to be selected by an actuator 17 for needle selection shown in FIG. The actuator 17 for needle selection is provided with four rotary pieces 18a, 18b, 18c, and 18d which can be operated electronically. The butt 16 of the hook bar selector 12 is provided for selection and is provided at different positions in the four sets of support portions 3 so as to correspond to the four rotary pieces 18a, 18b, 18c, and 18d, respectively. The plate wires 19a, 19b and the band 20 shown in Figs. 3 to 6 penetrate the plate 5 perpendicularly to the ground, i.e., in the longitudinal direction of the needle bed 2. 3 and 4, the plate wire 19a is a stopper at the retracted position of the hook bar select jack 9, and the plate wire 19b is in contact with the cam face 9a of the hook bar select jack 9. Then, the butt 24 of the hook bar 7 is immersed in the guide groove 6. The band 20 restricts the hook bar selector 12 from rising above the guide groove 6. The plate wire 19a is engaged with the recess 21 formed below the hook bar selector 12 to become a point of rotational displacement.

As shown in Figs. 5 and 6, in the cutting portion 4, a cutter bar 27, a cutter bar select jack 28, and a cutter bar selector 29 are inserted into the guide groove 6. It is. The tip of the cutter bar 27 is bent in the shape of a claw to form a cutter blade 30. The cutter bar 27 is manufactured by dividing into a first half 27a and a second half 27b having a cutter blade 30, and used in combination. Butts 31 and 32 are formed in the second half 27b of the cutter bar 27 and the cutter bar select jack 28, respectively. As shown in Fig. 5, the plate wire 19b contacts the cam face 28a of the cutter bar select jack 28 and immerses the butt 31 of the second half 27b of the cutter bar 27 into the guide groove 6. In the cutter bar 27, a fixed blade 33 is formed near the top of the plate 5 in contact with the back surface of the cutter blade 30, and the knitting yarn is cut by cutting the knitting yarn with the fixed blade 33 and the cutter blade 30. The cutter bar selector 29 is basically the same as the hook bar selector 12, and includes three butts 14, 15 and 16. The butt 16 is formed in any one of the positions corresponding to the four rotary pieces 18a, 18b, 18c, and 18d.

As shown in Fig. 1, in the longitudinal direction of the needle bed 2, the carriage 38 is guided by a rail 37 so that the carriage 38 can reciprocate. In the carriage 38, a knitting cam 39 is mounted. As shown in Fig. 7, the carriage 38 includes an actuator 17, a selector return cam 41a, a selector lift cam 41b, and a selector guide cam on a fingerboard 40 supporting the knitted cam 39. (selector guide cam) 42 and guide cam43 are disposed respectively. The knitting cam 39 is provided with a needle raising cam 44a, a center cam 44b, and a center guide cam (bridge cam) 44c in the center, and stitched on both sides. A cam cam 45 is installed. 1 and 3 to 6, the yarn feed opening 46 is formed by the knitting cam 39 at the position A near the top of the center cam 44b and the center guide cam 44c, that is, near the centerline 39a of the knitting cam 39. FIG. The knitting yarn 48 is supplied to the hook bar 7 or the cutter bar 27 extending to the needle bed gap 100 side. When the carriage 38 moves along the needle bed 2 in FIG. 1, for example, in the right direction and knits the knitting needle 47, the yarn feeder 46 moves from the position A of the center line 39a of the knitting cam 39 shown in FIG. It is interlocked so as to supply the knitting yarn to the knitting needle 47 at the position Z which is moved downstream from the downstream side of the.

As shown in Fig. 1, a switching mechanism 49 for switching the interlocking position of the feeding hole 46 in relation to the carriage 38 is provided, for example, on the needle beds before and after the V-bed flat knitting machine. It is installed in a bridge 50 connecting 38. The switching mechanism 49 appears as an imaginary line in the knitting of the knitting needle 47 so that, when the knitting support cutting device 1 is operated, the feeding hole 46 is in the position of the feeding yarn 46a, that is, the position near the center line 39a of the knitting cam 39. The interlocking feeder 46 is interlocked so as to be the positions of the feeding yarns 46b and 46c. The two positions indicated by the imaginary line are selected to be downstream from the centerline 39a of the knitting cam 39 according to the moving direction of the carriage 38. That is, when the carriage 38 moves to the right direction, it switches to the position of the yarn feed port 46b. In the V-bed flat knitting machine, the yarn feeder 46 is movable along a yarn guide rail, which is installed above the needle bed gap 100, and a plurality of yarn guide rails are provided, and one of them is selected. Most of the time you use your configuration. The yarn feeder 46 used for knitting one or more courses is stopped once at the end of needle bed 2, and the knitting support cutting device 1 is operated when another yarn feeder 46 is used.

By selectively evacuating the rotating pieces 18a, 18b, 18c, and 18d of the actuator 17 so that the knitting support cutting device 1 is operated against the knitting yarn when the carriage 38 passes through the end of the needle bed 2, first, the selection of the cutting part 4 is started. Begin selection of 3. Other rotating pieces 18a, 18b, 18c, and 18d not selected protrude. In the case where both the cutout portion 4 and the support portion 3 are operated, when the position of the butt 16 of the cutter bar selector 9 and the position of the butt 16 of the selected hook bar selector 12 coincide, the corresponding rotating pieces 18a, 18b, 18c Evacuate 18d selectively. If the position of the butt 16 of the cutter bar selector 9 and the position of the butt 16 of the selected hook bar selector 12 do not coincide, evacuate the rotating pieces 18a, 18b, 18c, and 18d corresponding to both sides selectively. After passing through the cutout section 4, the rotary pieces 18a, 18b, 18c, and 18d corresponding to the cutout section 4 are projected.

The needle selection mechanism by the actuator 17 is formed so as to select the butt for needle selection of the single needle to be in any one position among A position, H position or B position. The A position corresponds to the tuck, the H position corresponds to the knit, and the B position corresponds to the miss. In the knitting support cutting device 1, the butt 13 of the hook bar jack 9 and the butt 32 of the cutter bar jack 28 are selected to be any one of positions A, H or B using a needle selection mechanism for knitting needles. do.

In FIG. 7, the case where the carriage 38 moves from the left to the right direction to operate the knitting support cutting device 1 of FIG. In the hook bar 7 and the cutter bar 27, first, the guide cam 43 on the right side in Fig. 7, which is the leading side, acts on the butts 24 and 31, respectively, and pushes it to the rear end of the guide groove 6. The selector guide cam 42, which is also the front side of the hook bar selector 12 and the cutter bar selector 29, acts on the butt 14 and pushes down to the rear end position. The hook bar selector 12 and the cutter bar selector 29 push up the tail portion by the selector return cam 41a at the X position in FIG. If the tail pieces of the hook bar selector 12 and the cutter bar selector 29 are evacuated by the rotating pieces 18a, 18b, 18c, and 18d, the butt 16 does not contact the rotating pieces 18a, 18b, 18c, and 18d, and the butt 15 is moved from the guide groove 6. Maintain an injured position. When the tail portions of the selector 12 and the cutter bar selector 29 rise from the guide groove 6, the butt 15 acts by the selector lift cam 41b, and the hook bar selector 12 and the cutter bar selector 29 advance to the needle bed gap 100 side. By this advance, the hook bar select jack 9 and the cutter bar select jack 28 are pushed up to disengage the cam wires 9a and 28a from the plate wire 19b, and the hook bars 7 and the cutter bar 27 are guided by the butts 24 and 31. It rises from the groove 6, and receives the action of the knitting cam 39, respectively.

First, the butts 24 and 31 advance to the needle bed gap 100 side by the action of the needle rising cam 44a and the center cam 44b. After receiving the knitting yarn at the position of A, the hook bar 7 and the cutter bar 27 also retreat from the needle bed gap 100 as the hooks 24 and 31 descend to the position B by the action of the center guide cam 44c. At the position B, the hook bar 7 is pulled back by the spring 11, retracts, and a knitting yarn is inserted between the tip of the plate 5 and the hook 8 to support it. Since the cutter bar 27 is not pulled back to the needle bed 2, the cutter bar 27 continues to protrude until it comes in contact with the downward inclined surface 45a of the stitch cam 45. When the distance from the end of the guide cam 44c to the descending inclined surface 45a of the stitch cam 45 is sufficiently held compared to the distance between the support 3 and the cut 4 of the knitting support cutting device 1, the stitch cam 45 is used. Lower the cutter bar 27. However, in order to realize a compact knitting cam 39, the distance is shortened and the cutter bar 27 is lowered by operating the stitch cam 45 to the butt 31 in the next return course. Alternatively, the butt 32 of the cutter bar select jack 28 is settled by the presser 32a so as not to contact the stitch cam 45, and the butt 31 of the cutter bar 27 is settled in the guide groove 6 and passed through the stitch cam 45 to be subsequently removed. The cutter bar 27 is lowered using the downward inclined surface 43a of the guide cam 43.

For example, as the needle needle 47 shown in Figs. 1 and 2, a slider cam 101 is also provided in the carriage 38, as shown in Fig. 7 when a compound needle is used. However, the compound needle is characterized in that the stroke of the knitting operation of the knitting needle 47 by the knitting cam 39 as a whole is small, so that the knitting cam 39 is downsized. In the knitting operation of the knitting needle 47, the knitting needle is pulled in when forming a stitch loop using the stitch cam 45. The stitch cam 45 is provided with a function of adjusting a stitch for lowering the knitting needle 47 by several mm. In the stitch adjustment, the stitch cam 45 is moved relative to the reference position of the stitch cam at which the stitch becomes zero as the number of minimum stitches into which the needle is inserted. In the stitch adjustment in the knitting operation of the knitting needle 47, the length of the stitch loop can be adjusted. In order to cut the knitting yarn by lowering the cutter bar 27 using the stitch cam 45 in the state of stitch 0, since the stroke is insufficient, the deficiency of the stroke is compensated by the function of adjusting the stitch.

In the knitting cam 39 of Fig. 7, the butt 24 of the hook bar 7 can be slidably displaced at two positions H1 and H2. The butt 31 of the cutter bar 27 can be slidably displaced to four positions H1, H2, H3, and H4. The position of H1 corresponds to the knit position which is the maximum advance position. The position of H2 is the lowered position by the center guide cam 44c. The position of H3 is the lowered position when the stitch cam 45 is set to stitch 0. The position of H4 is a lowered position when setting a predetermined stitch value on the stitch cam 45. 4 and 6 show the advancing state of the hook bar 7 and the cutter bar 27 into the needle bed gap 100 when the butts 24 and 31 are advancing to the position of H1, respectively.

FIG. 8 shows a configuration for supporting the knitting yarn supplied from the yarn feed port 46 by actuating the center cam 44b and the center guide cam 44c to the butt 24 of the hook bar 7. FIG. Fig. 8 (a) shows a state when viewed in a plane, and Fig. 8 (b) shows a state when viewed in a side view. The rear end of the hook bar 7 is pulled by the spring 11 as shown in Figs. The hook 8 is fed into the needle bed gap 100 by the center cam 44b and the center guide cam 44c, and the knitting yarn is supplied from the feed yarn 46. After the guide by the center cam 44b and the center guide cam 44c is finished, the hook bar is turned by the spring 11. Retracting 7 can support the knitting yarn.

9 shows a configuration for cutting the knitting yarn supplied from the yarn feed port 46 by actuating the center cam 44b and the center guide cam 44c to the butt 31 of the cutter bar 27. FIG. Fig. 9 (a) shows a state when viewed in a plane, and Fig. 9 (b) shows a state when viewed in a side view. As shown in Fig. 9 (b), the cutter bar 27 is manufactured by dividing into a front half 27a having a cutter blade 30 and a second half 27b, and used in combination. The first half 27a uses a material having a good degree of cutting force of the cutter blade 30, for example, using hard steel such as high speed steel. The latter part 27b uses the same material as the knitting needle 47. When the single needle 47 is manufactured separately in the first half and the second half, the second half may be shared. As described above, in the stroke obtained by the needle lasing cam 44a, the center cam 44b, and the center guide cam 44c, the cutter bar 27 cannot perform a sufficient cutting operation, so that a function of adjusting the stitch is used. In FIG. 7, when the downward inclined surface 43a of the guide cam 43 is used, the position A is selected by the needle selection mechanism, and the butt 32 of the cutter bar select jack 28 is settled in the guide groove 6 by the presser 32a, and the butt of the cutter bar 27 is removed. The stitch cam 45 may not act on 31.

FIG. 10 shows a schematic sequence for carrying out the support cutting of the knitting yarn using the knitting support cutting device 1 of FIG. The process starts at step S0, and in step s1, the carriage 38 which interlocks with the yarn feeder 46 is reciprocated along the longitudinal direction of the needle bed 2 to perform the course knitting of the knitted fabric. The knitted fabric to be knitted is programmed as knitted data in advance, and the knitted fabric is knitted while the carriage 38 runs in accordance with the program. In step s2, it is determined in the next course whether or not the knitting yarn cutting device 1 needs to be operated, such as whether or not the intermittent yarn feeder 46 needs to be replaced. If it is not necessary to operate the knitting support cutting device 1, the flow returns to step s1 to continue the course formation.

If it is determined in step s2 that the knitting support cutting device 1 needs to be operated, it is determined in step s3 whether the carriage 38 is in a left-handed state falling from the knitting support cutting device 1. If it is not left-handed, an empty left-handed course is executed in which the knitting is not performed even if it is linked to the yarn feeder 46 in step S4. When judged to be left in step s3 or after the left course in step s4, the interlocking position of the yarn feeder 46 in step s5 is the yarn feeder from the position for knitting represented by the virtual line as the yarn feeder 46c in FIG. The switching mechanism 49 is operated to switch to the position for the support cutting indicated by the solid line as 46a. In step s6, a yarn feeder interlocking instruction is executed to bypass the carriage 38 so as not to operate the needle needle 47 in association with the yarn feeder 46. In step s7, it is determined whether or not the portion of the needle needle 47 that has not been arranged at the end of the needle bed 2 has been reached. If you do not reach it, keep going until you reach it.

When the carriage 38 reaches the end of the needle bed 2 in step s7, the cutter bar 27 is selected in step s8. A selection is made to operate the cutter bar 27 to cut the knitting yarn by operating the actuator 17 to selectively pull the rotary pieces 18a, 18b, 18c, 18d according to the position of the butt 16 formed on the cutter bar selector 29. In step s9, the actuator 17 is operated to select the butt 16 corresponding to the hook bar 7 to be used, and the rotary pieces 18a, 18b, 18c, and 18d are selectively drawn in. When the cutter bar 27 and the hook bar 7 are selected, the cutter bar 27 first advances into the needle bed gap 100 as the carriage 38 travels, and then the hook bar 7 advances into the needle bed gap 100 so that the inside of the yarn feed hole 46 It passes through and catches knitting yarn. When the hook bar 7 is retracted from the needle bed gap 100 by the center guide cam 44c, it is pulled back by the spring 11 to support the knitting yarn. Since the cutter bar 27 is not pulled by the spring 11, the cutter bar 27 is inserted into and supported between the cutter blade 30 and the fixed blade 33, and thus cutting is not achieved.

In the next left step 10, the stitch adjustment is performed by the stitch cam 45. If the carriage 38 is left in step s11, and only the cutter bar 27 is selected in step s12, the stitch cam 45 in the step 31 cuts the butt 31 of the cutter bar 27. The cutter bar 27 is inserted into the needle bed 2 in order to cut the knitting yarn. In step s13, it is confirmed that the cutting of the knitting yarn is completed, and the operation of the knitting support cutting device 1 is terminated in step s14.

FIG. 11 shows a schematic configuration of an example of the switching mechanism 49 shown in FIG. The actuator 105 is realized by a solenoid or the like and can switch the protrusion amount of the interlocking pin 106 in at least three stages. The interlocking pin 106 engages with the engaging member 107 in the protruding state. A coupling recess 107a is formed in the coupling member 107, and the coupling member 107 may be coupled in a different positional relationship depending on the amount of protrusion of the interlocking pin 106. The actuator 105 is provided on the carriage 38 side, such as the bridge 50, and the coupling member 107 is provided on the feed yarn 46 side. As shown in Fig. 11A, the interlocking positions are the same regardless of the projecting amount of the interlocking pin 106 in the left row. In the right-hand case, when knitting, as shown in Fig. 11 (b), the amount of protrusion of the interlocking pin 106 is reduced, and when supporting cutting of knitting, the amount of protrusion of the interlocking pin 106 is shown as shown in Fig. 11 (c). Increase

12 is a simplified diagram showing the configuration of a part functioning as an interlocking position switching means, which is another example of the switching mechanism 49 shown in FIG. This configuration is applied when the carriage 128 travels along the longitudinal direction of the needle bed and selects and interlocks a yarn feeder 129 traveling along a yarn guide rail which is suspended above the needle bed gap. do. The yarn feeder 129 is provided with an engagement recess 130 to engage with the interlocking pins 131 and 132 which emerge from the carriage 128. When knitting, one interlocking pin 131 is projected out so that the yarn feeder can be aligned according to the selection of the yarn feeder 129 and the traveling direction of the carriage 128. That is, in the state of the left line shown in (a) and the state of the right line shown in (b), the position of the yarn feed port can be switched from the vertex of the knitting cam to the position of the shoulder on the downstream side. When operating the knitting support cutting device 1 as shown in Fig. 1, the interlocking position of the yarn feeder 129 is switched near the apex of the knitting cam by protruding the second interlocking pin 132 as shown in (c). Moreover, the interlocking pins 132 and 131 of the dotted line shown to (a) and (c) show that there is no influence also in the state which protruded.

There is also a flat knitting machine in which the yarn feeding port is moved by belt driving. In such flat knitting machines, the timing of movement of the yarn feeder can be switched arbitrarily, so that the interlocking timing of the yarn feeder can be switched so that the knitting of the course is continued to support cutting of the knitting yarn in the same course.

According to the interlocking position switching means described above, the interlocking position of the yarn feeder with respect to the carriage depends on the position of the shoulder of the knitting cam to be pulled out after protruding the knitting needle from the needle bed to the maximum during knitting. Since the knitting needle at the time is switched so as to be near the normal position of the knitting cam that protrudes most from the needle bed, the cutter bar 27 and the hook bar 7 can be driven by the knitting cam for knitting needle driving. Since a dedicated cam may not be provided, the carriage can be miniaturized. Cutter bar 27 and hook bar 7 in a state of protruding from the needle bed by the knitting cam by the inlet selection means, and the hook bar 7 are further inserted to support the knitting yarn, and then the cutter bar 27 is further added. Since it pulls in and cuts the knitting yarn, support and cutting of the knitting yarn can be performed at an appropriate timing.

As described above, in the present embodiment, the carriage 38 is driven in the longitudinal direction of the needle bed 2 of the flat knitting machine in which a plurality of knitting needles 47 are arranged, and the knitting cam 39 mounted on the carriage 38 drives the knitting needle 47 while interlocking with the carriage 38. The knitting yarn 46 is supplied to the knitting needle 47 to knit the course of the knitting fabric, and the cutter bar 27 and the hook bar 7 provided at the end of the needle bed 2 support and cut the knitting yarn not used for knitting the next course. . The switching mechanism 49 depends on the interlocking position of the yarn feeder 46 relative to the carriage 38, and the position Z in the middle of the knitting cam 39 which is pulled in after the knitting needle 47 protrudes from the needle bed 2 to the maximum during knitting. It functions as an interlocking position switching means for switching the knitting needle 47 of the poem so as to follow the position A near the normal position of the knitting cam 39 which protrudes most from the needle bed 2. The actuator 17 applies the knitting cam 38 to the cutter bar 27 and the hook bar 7 to protrude the cutter bar 27 and the hook bar 7 from the needle bed 2, and then the cutter bar 27 does not cut the knitting yarn and the hook bar 7 is the knitting yarn. To drive the needle bed 2 into the needle bed 2 to the extent that it does not reach the support, and the cutter bar 27 and the hook bar 7 do not actuate the knitting cam 39 to move back and forth from the needle bed 2 of the cutter bar 27 and the hook bar 7. It serves as a support cutting selection means for selecting a condition that is not in use. The spring 11 and the stitch cam 45 or the guide cam 43 are selected by the actuator 17, and the cutter bar 27 and the hook bar 7 are inserted into the protruding from the needle bed 2 by the knitting cam 39, and the hook bar 7 is further inserted into the knitting yarn. It serves as an inlet selection means for pulling in the cutter bar 27 further after cutting to cut the knitting yarn.

Fig. 13 shows another embodiment of the present invention, in which a knitting cam 109 for a latch needle is mounted on a carriage 108, and a hook bar 7 and a cutter bar 27 are driven by the knitting cam 109 for a latch needle. do. The knitting cam 109 for the latch needle is disposed on the fingerboard 110 of the carriage 108 together with other cams and includes a needle rising cam 114a, a center cam 114b, a center guide cam 114c and a stitch cam 115. do. In the latch needle, the latch of the tip is opened and closed in accordance with the knock over of the knitting yarn at the time of knitting. The operation of the hook bar 7 is basically the same as that of the compound needle shown in FIG. For the cutter bar 27, since sufficient stroke is obtained from the knitting cam 109, the knitting yarn can be cut at the position of stitch 0. In the case of using the latch needle, that is, the latch needle, in Fig. 13, the hook bar 7 is first introduced between the center guide cam 114b and the stitch cam 115 to support the knitting yarn, and the butt 31 of the cutter bar 27 is coupled to the stitch cam 115. It is possible to cut the knitting yarn by sinking in the guide groove 6 and passing through the stitch cam 115, engaging the downwardly inclined surface 113a of the guide cam 113, and introducing the cutter bar 27. The means for passing the butt 31 of the cutter bar 27 without engaging the stitch cam 115 can be implemented by a known needle selection mechanism. That is, when the butt 31 reaches the inclined inclined surface of the stitch cam 115, the butt 32 of the cutter bar select jack 32 is pressed into the guide groove 6 by the presser 32a, whereby the butt 31 Can be temporarily settled in the guide groove 6. Therefore, the knitting yarn can be efficiently supported and cut in the same course.

According to the present invention, the interlocking timing of the yarn feeder according to the position of the middle of the knitting cam in which the knitting needle is protruded highest from the needle bed at the time of knitting, and the knitting needle at the time of knitting at the time of supporting cutting of the knitting yarn protrudes best from the needle bed. Since it is changed near the normal position of the knitting cam, even if the cutter bar and the hook bar mounted at the end of the needle bed are driven by the knitting cam mounted on the carriage to drive the knitting needle, there is a sufficient margin so that it does not collide when the feed yarn passes. Can be added. Since the knitting cam is also used to drive the cutter bar and the hook bar, the carriage can be miniaturized.

According to the present invention, even when the cutter bar that requires a larger stroke than the knitting needle is driven by the knitting cam, even if the knitting cam is used, the cam for setting the stitch is operated to increase the cutting stroke of the cutter bar. Sufficient retraction stroke can be obtained.

Further, according to the present invention, the interlocking position of the yarn feeder to the carriage by the interlocking position switching means, depending on the position of the knitting cam to be pulled in after knitting the needle needle to the highest from the needle bed at the time of knitting, Since the knitting needle at the time of knitting is switched so as to be in the vicinity of the normal position of the knitting cam that protrudes most from the needle bed, the cutter bar and the hook bar can be driven by the knitting cam for knitting needle driving, so that a dedicated cam may not be provided. Therefore, the size can be reduced. Cutter bar and hook bar protruded from the needle bed by the knitting cam to be pulled in by the retracting selection means, and after the hook bar is further inserted to support the knitting yarn, the cutter bar is further inserted to cut the knitting yarn, thereby supporting the knitting yarn. And cutting can be done at an appropriate timing.

According to the present invention, the cutter bar can be pulled in from a position away from the needle lasing cam, so even if a large number of hook bars are provided, the knitting of the knitting by the cutter bar can be cut after reliably supporting the knitting yarn at the selected hook bar. .

In addition, according to the present invention, the hook bar and the cutter bar are protruded from the needle bed by the needle rising cam and the center cam from the knitting cam, and the knitting yarn is supplied, and the drawing to the position corresponding to the steeping position to the knitting needle is completed by the center guide cam. Then, the hook bar can be retracted to the needle bed by the spring to support the knitting yarn.

Further, according to the present invention, the type of projecting state of the interlocking pin is switched by, for example, a change in the amount of protrusion, a change in the interlocking pin to protrude, and the interlocking position of the yarn feeder with respect to the carriage at the time of knitting and support cutting of the knitting yarn. You can switch from.

Claims (7)

While driving the carriage in the longitudinal direction of the needle bed of a flat knitting machine in which a plurality of knitting needles are arranged, the knitting needle is driven by a knitting cam mounted on the carriage. A cutter bar provided at the end of the needle bed by knitting a course of knitting fabric by supplying a knitting yarn to a knitting needle from a yarn feeder interlocked with a carriage; In a knitting support cutting method of supporting and cutting a knitting yarn not used for knitting of the next course in a hook bar, At the time of knitting, the interlocking timing of the yarn feeder which follows the position of the knitting cam which protrudes from the needle bed after protruding to the maximum from the needle bed, and the knitting needle at the time of the knitting cutting of the knitting needle from the needle bed Change to near the normal position of the knitting cam that protrudes best, And a cutter bar and a hook bar are respectively protruded from the needle bed and driven into the needle bed using a knitting cam. The method of claim 1, When the cutter bar protruding from the needle bed is pulled into the needle bed by the knitting cam, the cam for stitch setting is operated to increase the forward and backward stroke of the cutter bar. . Knitting the course of knitting fabric by driving the carriage in the longitudinal direction of the needle bed of the flat knitting machine in which a large number of knitting needles are arranged, and feeding the knitting yarn from the yarn feeder linked to the carriage while driving the knitting needle by the knitting cam mounted on the carriage. In the knitting support cutting device for supporting and cutting the knitting yarn not used for knitting of the next course in the cutter bar and the hook bar provided at the end of the needle bed, The interlocking position of the yarn feeder with respect to the carriage depends on the position of the knitting cam in which the knitting needle is protruded from the needle bed at the maximum after knitting, and the knitting needle at the knitting is most protruded from the needle bed at the time of cutting of the knitting support. Interlocking position switching means for switching so as to follow the normal position of the knitting cam; The actuation state that the knitting bar is applied to the cutter bar and the hook bar to protrude the cutter bar and the hook bar from the needle bed, and then the cutter bar does not reach cutting even if the cutter bar supports the knitting yarn, so that the hook bar is driven into the needle bed until the hook bar supports the knitting yarn. Support cutting selection means for selecting a non-working state in which a knitting cam is not acted on the cutter bar and the hook bar, and protruding from the needle bed of the cutter bar and the hook bar,支持 切斷 選擇 手段), In the acting state by the support cutting selecting means, the cutter bar and the hook bar are protruded from the needle bed by the knitting cam, and the hook bar is further inserted to support the knitting yarn, and then the cutter bar is further introduced to cut the knitting yarn. A knitting support cutting device characterized in that it comprises a pull-in means for selecting. The method of claim 3, The knitting cam includes a needle raising cam and a center cam for protruding the knitting needle, a center guide cam for drawing the protruding knitting needle to a steep position, and a center guide cam. And a stitch cam which further introduces the knitting needle inserted by The pull-in selecting means includes a spring pressurizing in the direction in which the hook bar is pulled in, the hook bar is pulled out by a spring after passing through a needle lasing cam, and the cutter bar has a hook bar. A knitting support cutting device characterized in that the drawing is made by operating the stitch cam after the drawing. The method according to claim 3 or 4, The inlet selection means is a weft supporting cutting device, characterized in that the inlet of the cutter bar is a stroke larger than the stroke at which the stitch becomes zero by the inlet of the knitting needle by the stitch cam. The method of claim 3, The knitting cam includes a needle rising cam and a center cam for protruding the knitting needle, a center guide cam for introducing the protruding knitting needle to a sudden feeding position, and a stitch cam for further introducing a knitting needle inserted by the center guide cam; , The retraction selecting means includes a spring for urging the hook bar in a retracting direction, and after passing through the center guide cam, the hook bar is retracted by the spring, and the cutter bar is trailing from the stitch cam without acting the stitch cam. A knitting support cutting device characterized in that a drawing cam is operated by actuating a lowering cam installed in a cage. The method according to any one of claims 3 to 6, The interlocking position switching means includes an interlocking pin which is provided on one side of the carriage or the feed yarn and which can switch a plurality of types of protrusions on the other side. , A knitting support cutting device, characterized in that a recess is formed on the other side of the carriage or the yarn feeding port and is formed to engage with the interlocking pin and change the interlocking position of the yarn feeding sphere relative to the carriage according to the kind of projecting state of the interlocking pin.