JP2018178288A - Plaiting knitting method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a plaiting knitting method capable of changing allocation of front yarn and plaiting yarn without relying on a movable sinker.SOLUTION: In a plaiting knitting method, allocation of a front yarn and a plaiting yarn is reversed in a second route by forming following two types of pull-in route Cb for retreating a needle that advanced to a tooth port: a normal first route H; and a second route A that is branched from the first route and joins the first route after retreating the needle faster than the first route. Allocation of the front yarn and the plaiting yarn on the needle that moves through the second route and forms stitch is reversed by advancing an inversion member 34 toward a tip of the needle that moves through the second route and forms stitch and guiding the first yarn 21 and the second yarn 23 by the inversion member.SELECTED DRAWING: Figure 3

Description

  The present invention relates to plating organization.

  In plating knitting, a knitted fabric is knitted using a plurality of yarns, and the yarn from the preceding yarn feeder becomes the front yarn and the yarn from the succeeding yarn feeder becomes the yarn attachment. The front yarn appears on the surface of the knitted fabric, and the yarn is hidden behind the front yarn. Also, in order to change the allocation of the front yarn and the yarn attachment, it is necessary to change the order of the feed yarn leading and trailing yarns. It is difficult to change the allocation of front yarns and yarns during one course of knitting, since a normal flat knitting machine is not designed to change the order of leading / following the yarn feeder during one course of knitting. .

  In Patent Document 1 (JP2016-176159), as a route for retracting the needle from the dentition in plating knitting, in addition to a normal route, a route for inversion is provided to reverse the allocation of front yarn and yarn. In the reversing route, the needle is retracted more quickly than the normal route, and in the process of retracting the needle, the movable sinker is once advanced and then retracted. And, by the contact with the movable sinker, the allocation of the front yarn and the yarn is changed. However, this method can not be performed without a movable sinker.

JP2016-176159

  An object of the present invention is to provide a new method of changing the allocation of front yarns and yarns in plating knitting.

The present invention uses a flatbed knitting machine having a needle bed provided with a plurality of needles,
The needle has a hook at the tip and a shank behind the hook and thicker than the hook,
The first route and the first route are branched from the first route, and the needle is retracted from the first aperture faster than the first route, and the first route is used to retract the needle from the first aperture. Two types of second routes to join one route,
In the first route, plating knitting is performed so that the first yarn from the preceding yarn feeder becomes the front yarn and the second yarn from the subsequent yarn feeder becomes the yarn attachment,
In the second route, in the plating knitting method, plating is performed such that the second yarn is a front yarn and the first yarn is an attachment yarn,
Step a: Move the second route to form a stitch. Advance the reversing member between the first needle and the second needle one stream downstream from the first needle, and
Step b: Reversing the allocation of the front yarn and the yarn on the first needle moving on the second route to form a stitch by guiding the first yarn and the second yarn by the reversing member It is characterized by

  In this invention, the first yarn and the second yarn are guided by the reversing member, and the allocation of the front yarn and the yarn is reversed. Thus, the assignment can be reversed without resorting to movable sinkers. The reversing member is a loop presser (for example, JP 4102430), a transfer jack (JP 299 5464), etc., and the cam for the shape and operation of the member is used so as to combine the function of the present invention with the original function of the loop presser It is preferable to improve. The reversing member may be any member as long as it can move forward and backward toward the tip of the first needle forming the stitch by moving the second route, and can guide the first and second threads. Not only may it be shared, but a dedicated member may be newly provided.

  Preferably, in step a, the tip upper surface of the reversing member is advanced below the first thread and the second thread, and in step b, the first thread and the second thread are placed on the tip upper surface; The first yarn and the second yarn are guided together with members other than the needle provided between the first needle and the second needle in the needle bed to which the needle and the second needle belong. The first yarn and the second yarn are guided from the reversing member to a member other than the needle, and the allocation of the front yarn and the yarn is reversed. And if it does in this way, allocation of surface yarn and a yarn can be reversed especially stably.

  A member other than the needle may be a yarn guide, a movable or fixed sinker, or the like, and a dedicated member may be newly provided separately therefrom. It is preferable that the members other than the needle have an inclined surface which is low on the tooth center side (the tip side of the needle bed) and high on the side (base end side of the needle bed) away from the tooth center. In addition, the tip upper surface of the reversing member is flat or a state in which the reversing member advances and acts on the yarn so that the first and second threads can be guided to a member other than the needle. It is preferable that the proximal side of the bed be inclined to be high.

  In step a, the lower end of the tip end of the reversing member may be advanced above the first and second threads, and in step b, the first and second threads may be guided to be pressed by the lower end . The first yarn and the second yarn are guided by the lower end of the tip so that the allocation of the front yarn and the yarn is reversed. In this case, it is preferable that the tip end lower surface of the reversing member be inclined so that the center side of the tooth gap is low and the base end side of the needle bed is high in a state where the reversing member advances and acts on the yarn.

  Preferably, after the first route and the second route merge, the needle is further retracted from the dentition. Temporarily, when the 1st route and the 2nd route merge, it is assumed that needle retreat on the 2nd route is completed. In this case, the needle moving on the second route of the trailing end ends the retreat and does not pull out the yarn from the yarn feeder. In this state, the needle moving on the first preceding route is rapidly retracted to pull the yarn from the stitch of the trailing needle. Then, yarn breakage may occur at the stitches held by the trailing needle. After the first route and the second route join, when the needle is further retracted from the mouth, the needle moving on the second route also pulls out the yarn and tries to enlarge the stitch, so it is difficult for the yarn breakage to occur .

  Preferably, the second yarn feeder is disposed farther from the needle bed than the first yarn feeder. Then, the yarn feeding paths of the second yarn and the first yarn are more clearly divided. For this reason, at the time of normal plating knitting, knitting according to the allocation of the face yarn / spinning is performed more reliably. Even when the allocation of the front yarn and the yarn is reversed, the disorder of the order of the first yarn and the second yarn by the reversing member or the like is reduced, and the inversion of the front yarn / yarn can be realized more stably.

  Preferably, following the needles moving in a second route to form a stitch, two needles are moved in a first route to form a stitch. Then, the allocation of the front yarn and the yarn is reversed up to the first of the two needles, and the first yarn becomes the front yarn and the second yarn becomes the yarn from the second needle of the two needles. Thus, the allocation of the front yarn and the yarn is restored to the normal.

  In this way, it is possible to restore the allocation of the front yarns and the yarns in the middle of the knitting of one course.

Figure showing the route the needle moves relative to the cam of the flatbed knitting machine A diagram schematically showing a normal area and a reverse area in plating organization The figure which shows the route of a needle and a loop presser when reversing allocation of a face yarn and a yarn in an Example. Principal part side view of flat knitting machine in changing the allocation of front yarn and yarn in the embodiment The figure which shows the route of a needle and a loop presser at the time of reversing allocation of a surface yarn and a yarn in 2nd Example. In the second embodiment, the side view of the main part of the flat knitting machine when changing the allocation of the front yarn and the yarn application Diagram showing the route of the needle and loop presser when returning from the reversal region to the normal region Side view of the main part of the flat knitting machine when returning from the reverse area to the normal area Diagram showing the difference in the elevation angle of the yarn between the leading yarn feeder and the trailing yarn feeder Principal part plan view showing a state in which the yarn feeder for yarn attachment is brought close to the opposite needle bed Principal part side view showing a state in which the yarn feeder for yarn attachment is brought close to the opposite needle bed

  The following is a description of the best mode for carrying out the invention.

  1 to 11 show a plating knitting method of the embodiment. FIG. 1 shows a route along which a needle (knitting needle) moves relative to a cam of a flatbed knitting machine. The flatbed knitting machine comprises, for example, a pair or more of needle beds in which a large number of needles are arranged in parallel. The cam system 2 of the carriage retracts the needles after advancing from the needle bed to the prongs. In FIG. 1, the carriage moves from right to left in the figure and the needle moves relative to the cam system 2 from left to right in FIG. However, the cam system 2 may not be provided, and a linear motor may be provided for each needle to move the needle forward and backward. Also, moving upward in FIG. 1 is forward, moving downward is backward.

  A needle selection device 4 selects a needle by operating the butt of the needle (knitted needle) with the magnetic pole 5 of the electromagnet. The cam system 2 includes a lift cam 6, a stitch cam 8, a half cam 12, a presser 14, 15, and the like. The needle is guided by the groove 10 or the like on the upper side of the lift cam 6 to move along the route C, and when it passes the top of the lift cam 6, the needle moves along the retraction route Cb which pulls the needle from the dentition into the needle bed. The lead-in route Cb branches into two routes, a normal route H and a reverse route A, and then joins at the joining position M, and passes the determined position D whenever the needle is pulled most toward the needle bed side. In Route A, the needle is drawn from the dentition to the needle bed side more quickly than in Route H. Further, the size of the stitches is fixed at the degree determination position D, and the size of the stitches is the same in both the route A and the route H.

  The presser 14 allows the needle to move along the route H. The needles affected by the presser 14 travel along the route H while being guided by the side surface of the stitch cam 8 or the like, and the needles not affected by the presser 14 travel along the route A. The routes A and H are selected by the needle selector 4 for each needle, for example.

  In the plating formation of the embodiment, a reversing member such as a loop presser or a transfer jack is used in addition to the needle. The reversing member is a member which guides the first yarn and the second yarn by placing the first yarn and the second yarn on the tip end or pressing the first yarn and the second yarn by the tip portion. It may be a dedicated member. Also, the reversing member may move back and forth from the opposite side of the needle bed across the tooth gap, or may move back and forth from the same side as the needle bed as seen from the tooth gap.

  The reversing member is, for example, disposed in the bed at a position facing the needle bed across the tooth gap, and corresponds 1: 1 with the needle. Then, by the cam system provided on the carriage, the reversing member moves backward after advancing to the needle bed side. The cam system that operates the reversing member includes, for example, a selection device that selects the reversing member in units of one, and a cam that moves the selected reversing member back and forth. The route along which the reversing member moves is simple, and the structure of the cam system is also simple, so the illustration is omitted.

  FIG. 2 schematically shows a normal area (Normal) and an inversion area (Inversion) in plating organization, and the carriage moves from right to left in FIG. The first yarn 21 from the preceding yarn feeder 20 and the second yarn 23 from the succeeding yarn feeder 22 are fed to the needles of the needle bed to form a stitch. In the stitches of the normal area (solid line), the first yarn 21 of the preceding yarn feeder 20 is the front yarn, the second yarn 23 of the yarn feeder 22 of the succeeding line is the yarn attachment, and the stitches of the reverse region (broken line) The allocation of the yarn and yarn application is reversed, and the yarn 23 from the yarn feeder 22 of the subsequent line becomes the front yarn, and the yarn 21 from the preceding yarn feeder 20 becomes the yarn application. In FIG. 2, the length of the reversal area is six, but it can be any length of two or more, and can be changed from the normal area to the reversal area at any position, and from the reversal area to the normal area at any position I can return.

  FIG. 3 shows the route of the needle 24 and the loop presser 34 at the transition from the normal region to the reverse region. The carriage moves from right to left in the figure, and in the case of the needle, the upward movement of the figure is forward movement to the tooth gap, and the downward movement is backward movement to the needle bed 30. The loop presser 34 moves back and forth from the opposite side to the needle 24 to a position crossing the yarn guide 25.

  The needle 24 has a hook 27 at its tip, and the needle 24 is a vera needle, but may be another needle such as a compound needle. The yarn guide 25 is fixed to the needle bed 30 and guides the yarn when drawing in the needle 24 in the normal route H. 26 is a movable or fixed sinker. There is also a yarn guide 25 and a sinker 26 between the needles 24 and 24.

  The needle 24 moves along the route C, branches into a normal route H and a reverse route A in the middle of the pull-in route Cb, and merges at the merging position M before reaching the determined position D. Joining the routes A and H in front of the determined position D has an effect of preventing thread breakage as described later. L1 is a moving route of the loop presser 34.

  The inversion area starts with the needle 24a (first needle), and the needles belonging to the inversion area travel the route A, and the needles belonging to the normal area travel the route H. 24b is the last needle of the normal area. The last needle of the reverse region moves along the route H, which will be described later with reference to FIGS. 7 and 8.

  Until the hook is captured, the second yarn 23 from the trailing yarn feeder 22 is up in the normal area and the first yarn 21 from the preceding yarn feeder 20 is downward in the normal area in the vertical direction. Become. In the hook of the normal region, the yarn 21 serving as the front yarn is far from the outlet of the hook (vertically lower), and the yarn 23 serving as the yarn is located closer to the outlet (vertically upper).

  FIG. 4 shows the reversal of the allocation of the front yarn and the yarn at the needle 24a, and 32 is the center of the mouth which is a vertical surface. The yarn guide 25 is provided with an inclined surface 25b inclined at the tip end so that the tooth flank side is downward, and the inclined surface 25b does not guide the yarns 21 and 23 in a normal region.

  The loop presser 34a is advanced between the needle 24a and its downstream needle along the moving direction of the carriage, and the tip upper surface 35 of the loop presser 34 crosses the yarn guide 25. Then, in addition to being guided by the tip upper surface 35, the yarns 21 and 23 are drawn in by the hook 27 of the needle 24a, and move onto the inclined surface 25b. Along with this, in the hook 27 of the needle 24a, the yarn 21 occupies the position near the outlet of the hook 27 at the upper side and becomes a yarn, and the yarn 23 occupies the position near the shank 28 of the hook 27 at the lower side and the surface yarn It becomes. Thus, the yarns 21 and 23 are placed on the inclined surface 25b of the yarn guide 25 by the guide of the yarns 21 and 23 by the loop presser 34 and the drawing by the hook 27 and the allocation of the front yarns and yarns is reversed.

  The tip upper surface 35 is flat or in a state of advancing to the tooth gap and acting on the yarn so as to guide the yarns 21 and 23 to the yarn guide 25, the needle bed 30 side (a side away from the tooth center 32) Is preferred to be inclined so that the center of the mouth 32 is lower. The inclined surface 25b is preferably inclined so that the proximal end side (the side away from the center 32 of the oral cavity) of the needle bed 30 is high and the distal end side (the side 32 of the oral cavity center) of the needle bed is low. The inclined surface 25b may be provided on a movable or fixed sinker or the like. Also, the shank 28 is a portion with a greater thickness that is at a position retracted from the hook 27.

  The loop presser 34 may be advanced between the needles 24, 24 and may be advanced with respect to each needle 24 of the reversing area or only with respect to the first needle 24a of the reversing area. Once in the inversion region, the inversion of the assignment is maintained, as long as the needles 24 do not move two consecutive H routes without the action of the loop presser 34. If there is a needle that does not form a stitch in the middle, this needle is ignored. In addition, F of FIG. 4 shows a horizontal direction and V shows a perpendicular direction.

  5 and 6 show a second embodiment in which the lower end surface 36 of the loop presser 34 is used to shift to the reverse region. The difference from FIGS. 3 and 4 is that the lower end surface 36 of the loop presser 34 is used. The inclined surface 25b of the yarn guide 25 may or may not be used. Also in this embodiment, the loop presser 34 may be advanced with respect to each needle in the reversing area or with respect to only the first needle in the reversing area. L2 is a movement route of the loop presser 34.

  FIG. 6 shows the action of the loop presser 34 on the needle 24a of FIG. 5. When the loop presser 34a advances to the needle 24a side, the tip lower surface 36 guides the threads 21 and 23 to push down and mounts on the inclined surface 25b. . The most advanced position of the lower end surface 36 may be near the inclined surface 25b or a position further advanced as shown in FIG. When the yarns 21 and 23 are placed on the inclined surface 25b, the relationship between the front yarn and the yarn attachment is reversed as in the embodiment of FIGS. The yarns 21 and 23 are placed on the inclined surface 25b and turned upside down by the depression of the lower end surface 36 of the loop presser 34a. When the inclined surface 25 b is not present, the yarns 21 and 23 are captured by the hook 27 in a reversed state by the depression of the lower end surface 36. FIG. 6 also shows the downstream side loop pressers 34b and 34c. The tip end lower surface 36 is preferably inclined so that the needle bed 30 side is high and the lip center 32 side is low with the loop presser 34 of the reversing member advancing and acting on the yarn. The example of the advancing path when the reversing member advances from the same side as the needle bed 30 will be supplemented. The reversing member advances so as to, for example, go straight toward the center of the oral cavity so that the lower surface does not contact the yarns 21 and 23. Then, the lower surface of the reversing member descends toward the needle bed 30 while being lowered, and the threads 21 and 23 are pushed down by the lower surface of the reversing member.

  In the reverse route A, which starts pulling in the yarn at an earlier timing than the normal route H, the yarn 21 is hooked by the hook of the needle 24 at a position closer to the yarn feeder in order to maintain the once reversed front yarn / spindle relationship. , Pull in 23. As a result, the yarns 21 and 23 are placed on the inclined surface 25b or the like while the order is reversed. Therefore, as long as the needle passes through the route A, the inversion of the front yarn / spindle is maintained. In order to return the front thread / spinning allocation to normal, the route may be changed from the route A to the route H.

  FIGS. 7 and 8 show the return from the reverse region to the normal region, which is common to the embodiments of FIGS. 3 and 4 and the embodiments of FIGS. 5 and 6, and the loop presser 34 does not work. Both the last needle 24c of the reversal region and the first needle 24d of the normal region move along the route H, and the needles 24e, f preceding them move along the route A. FIG. 8 shows the needles 24c, 24d retracted as compared to FIG. 7, and as shown in FIG. 8, the threads 21, 23 are on the shank 28 on the needle 24d. Further, in the hook of the needle 24c, the yarn 23 is on the side far from the outlet, the yarn 21 is on the side near the outlet, and the state in which the allocation is reversed continues. Then, when the needle 24d retracts from the state of FIG. 8, the yarn 21 is lowered in the hook 27, the yarn 23 is upward, and the allocation of the front yarn and the application yarn returns to normal. As described above, when there are two consecutive needles traveling on the route H, the reversing area is returned to the normal area. The number of needles is considered ignoring needles that do not form stitches.

  FIG. 9 shows the yarns 21, 23 in a front view from the needle bed. Since the yarns 21 and 23 are captured by the same hook, the yarn 23 from the trailing yarn feeder 22 has a large elevation angle, and the yarn 21 from the preceding yarn feeder 20 has a small elevation angle.

  In FIGS. 10 and 11, the rear side yarn feeder 22 is shifted from the mouth center 32 to the opposing needle bed 30b by the shift amount Δ. Reference numeral 38 denotes a center line parallel to the tip of the needle bed 30 at the yarn feeder 22 at the trailing end. Then, as shown in FIG. 10, the difference between the angle θ2 formed by the thread 23 with the tooth center 32 and the angle θ1 formed by the thread 21 with the tooth center 32 becomes large, and the difference between the elevation angles of the threads 21 and 23 is Join. For this reason, the difference between the yarn feeding paths of the yarn 21 and the yarn 23 becomes larger, and the allocation of the front yarn and the yarn is more stable in the normal region. Further, even in the case of reversing the allocation of the front yarn / spindle, the yarns 21 and 23 come into contact with the upper end surface 35 or the lower end surface 36 of the loop presser 34 in a predetermined positional relationship. For this reason, allocation of top yarn and yarn can be reversed more reliably. Similarly, returning the front thread / spinning allocation to normal can be performed more stably.

  The position of the yarn feeder 22 may be shifted by a solenoid or the like in order to shift the yarn feeder 22 from the center of the mouth 32 to the opposing needle bed 30b. However, a mechanism for shifting the yarn feeder 22 may not be provided, and a yarn feeder shifted to the needle bed 30 side with respect to the center 32 of the tooth tip and a yarn feeder shifted to the needle bed 30b may be provided.

  The loop presser 34 in the embodiment can be moved into and out of an appropriate bed and converted into an optional member for guiding the yarns 21 and 23 by the tip end, for example, a transfer jack or the like, or It may be a dedicated member for changing the allocation. The bed on which these members are provided is not limited to the side facing the needle bed 30, but may be provided on the same side as the needle bed 30 with respect to the center 32 of the dentition, or may be provided on the needle bed 30 itself. In the embodiment, the preceding carrier is provided with the preceding yarn feeder 20, and the following carrier is provided with the following yarn feeder 22. However, one carrier may be provided with two preceding and following yarn feeders.

The embodiment has the following features.
1) Move the needle 24 along the route A, and reverse the allocation of the front yarn and the yarn by using a reversing member such as a loop presser. Reversal of allocation does not require a moveable sinker.
2) Once the allocation of the front yarn and the application yarn is reversed, the allocation of the front yarn and the application yarn remains inverted as long as the needle moves on the route A.
3) If the needle moving on the route A is followed by two needles moving on the route H, the allocation of the front yarn and the yarn returns to the normal state.
4) After the route A passes through the merging position M, the yarn passes through the fixing position D, so the yarn is hard to break. If Route A merges with Route H after passing through the predetermined position, the needle may be withdrawn from the stitch of the needle 24a by the needle receding along the route H before the needle 24a, resulting in thread breakage.
5) By shifting the yarn feeder 22 on the trailing side from the center of the mouth to the side of the opposing needle bed 30b, the allocation of the front yarn and the yarn can be reversed more reliably.
6) According to the inventor's experiments, it was possible to realize the inversion of the front yarn / spindle particularly stably in the examples of FIGS. 3 and 4.

Reference Signs List 2 cam system 4 needle selection device 5 magnetic pole 6 rising cam 8 stitch cam 10 groove
12 half cams 14 and 15 precessor 20 yarn feeder preceding (first yarn feeder)
22 Next yarn feeder (second yarn feeder)
21 first yarn 23 second yarn 24 needle 24a first needle 24b second needle 25 yarn guide 25b inclined surface 26 sinker 27 hook 28 shank 30 needle bed 30b opposed needle bed 32 tooth center 34 loop presser 35 Tip upper surface 36 Tip lower surface

C route Cb pull-in route A route (second route)
H route (first route)
M Joint position D Degree determination position F Horizontal direction V Vertical direction L, L2 Loop presser route Δ Shift amount

Claims (6)

Using a flatbed knitting machine having a needle bed with a plurality of needles,
The first route and the first route are branched from the first route, and the needle is retracted from the first aperture faster than the first route, and the first route is used to retract the needle from the first aperture. Two types of second routes to join one route,
In the first route, plating knitting is performed so that the first yarn from the preceding yarn feeder becomes the front yarn and the second yarn from the subsequent yarn feeder becomes the yarn attachment,
In the second route, in the plating knitting method, plating is performed such that the second yarn is a front yarn and the first yarn is an attachment yarn,
Step a: Advance the reversing member between the first needle moving on the second route to form a stitch, and the second needle one stream downstream from the first needle, and Step b: By guiding the first yarn and the second yarn by the reversing member, the second route is moved to reverse the allocation of the front yarn and the yarn on the needles forming the stitches. Ting organization method. At the step a, the tip upper surface of the reversing member is advanced below the first thread and the second thread,
A first thread and a second thread are placed on the top surface of the tip in the step b, and provided between the first and second needles in a needle bed to which the first and second needles belong; The method according to claim 1, wherein the first yarn and the second yarn are guided together with a member other than the needle. At the step a, the tip lower surface of the reversing member is advanced above the first thread and the second thread,
The plating knitting method according to claim 1, wherein in step (b), the first yarn and the second yarn are guided so as to be pressed by the lower end surface of the tip.   The plating knitting method according to any one of claims 1 to 3, characterized in that after the first route and the second route join together, the needle is further retracted from the mouth.   The plating knitting method according to any one of claims 1 to 4, characterized in that the second yarn feeder is disposed farther from the needle bed than the first yarn feeder. By following the needles moving in the second route to form a stitch, two needles are continuously moved in the first route to form a stitch,
The allocation of front yarn and yarn is reversed up to the first needle of the two needles, and the first yarn is the front yarn and the second yarn is the yarn from the second needle of the two needles. The plating knitting method according to any one of claims 1 to 5, characterized in that assignment of the front yarn and the yarn is restored.

Images