JP2012117176A - Knitting yarn brake for flat-knitting machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a knitting yarn brake which is capable of changing a position of a yarn passing through brake discs and is capable of performing pressure uniformly between brake discs.SOLUTION: A rotating ring member 12 has a guide part guiding input and output sides of a knitting yarn 3 on the outer peripheral side and rotates to adjust a position where the knitting yarn 3 passes through a brake disc 4 as shown in (a), (b) and (c). As a pressing spring 9 is placed along a shaft line 11a around which the brake disc 4 rotates, pressure performs uniformly.

Description

  The present invention relates to a knitting yarn of a flat knitting machine that supplies a knitting yarn while giving a passage resistance to a hook-shaped tension spring that swings and displaces and applies tension to the knitting yarn in a knitting yarn supply path of the flat knitting machine. Regarding brakes.

  Conventionally, a side tension device as shown in FIG. 5 as an example is provided on the side of the needle bed of the flat knitting machine, and the fluctuation of the tension of the knitting yarn during knitting is suppressed by the knitting yarn supply path to the knitting needle of the needle bed. (For example, refer patent document 1). A knitting yarn brake 1 that applies resistance to a passing knitting yarn is used in a tension fluctuation suppressing device such as a side tension device. In the side tension device as shown in Patent Document 1, a path for turning back the knitting yarn 3 from the knitting yarn brake 1 to the tip guide 2b of the swing rod 2a of the tension spring 2 is formed, and a buffer for suppressing tension fluctuations is formed. Yes. Resistance to the knitting yarn 3 is generated in a section sandwiched between the two brake disks 4 and 5. The brake disks 4 and 5 are supported by the support member 6 in a state where the brake disks 4 and 5 can rotate around a common axis. A plurality of such knitting yarn brakes 1 are juxtaposed in a direction perpendicular to the paper surface, and the whole is supported by the support frame 7. In order to support the support member 6 of each knitting yarn brake 1 with the support frame 7, the support shaft 8 penetrates in a direction perpendicular to the paper surface. One of the support shafts 8 is also provided with a pressing spring 9 for generating a pressing force for sandwiching the knitting yarn 3 between the brake disks 4 and 5. The support shaft 8 passes outside the brake disks 4 and 5. The knitting yarn 3 can pass through any portion between the brake discs 4 and 5 including the vicinity of the central axis 1a of the knitting yarn brake 1 which is the rotational axis of the brake discs 4 and 5.

  Although not shown in Patent Document 1, two pins 6 a and 6 b are provided on the entry side of the knitting yarn brake 1 in order to regulate the position where the knitting yarn 3 passes between the brake disks 4 and 5. A single pin 6c is provided on the exit side. For example, the knitting yarn 3 fed from the yarn feed roller 10 passes between the pins 6a and 6b on the entry side of the knitting yarn brake 1, and on the exit side, it is applied to the pin 6c when the swinging displacement of the tension spring 2 increases. Keep it. The knitting yarn 3 folded back through the tip guide 2b of the tension spring 2 is supplied to the knitting needle on the needle bed through the exit guide 7a provided on the support frame 7.

JP 2010-144301 A

  In the knitting yarn brake 1 as shown in FIG. 5, since the positions of the pins 6a, 6b, 6c for guiding the knitting yarn 3 are fixed, when the knitting yarn 3 is passed between the pins 6a, 6b on the entry side, The position passing between the brake disks 4 and 5 is limited. However, depending on the knitting conditions and the material of the knitting yarn 3, it may be necessary to adjust the position of the knitting yarn 3 that passes between the brake disks 4 and 5. If the knitting yarn 3 passes outside rather than between the pins 6a and 6b, the position passing between the brake disks 4 and 5 can be changed as compared with the case where the knitting yarn 3 passes between the pins 6a and 6b. However, it may be difficult to pass the knitting yarn 3, and when the knitting yarn 3 is passed again, there is a possibility that it may not be known where the thread has been passed before. Furthermore, since the position where the pressing spring 9 is provided is away from the center of the brake disks 4 and 5, the pressing force against the knitting yarn 3 between the brake disks 4 and 5 is biased.

  An object of the present invention is to provide a knitting yarn brake that can adjust the position of a knitting yarn that passes between brake discs and that can uniformly perform pressing between the brake discs.

The present invention relates to a knitting yarn of a flat knitting machine that supplies a knitting yarn while giving a passage resistance to a hook-shaped tension spring that swings and displaces and applies tension to the knitting yarn in a knitting yarn supply path of the flat knitting machine. In braking,
Two brake discs arranged so as to face each other along a common axis and sandwiching a knitting yarn;
A support member for supporting each brake disc from the back side in a state where the brake disc can be rotated about the axis, and
A spring that presses the back side of at least one of the two brake discs along the axis; and
A guide part that has an annular shape and is supported by a support member on one side of the two brake discs on the inner peripheral side and guides the entry and exit sides of the knitting yarn on the side facing the brake disc. A rotation ring member capable of adjusting the guide position of the knitting yarn by the guide portion by rotation around the axis with respect to the support member;
A knitting yarn brake for a flat knitting machine.

Further, in the present invention, the support member is a support portion that supports the inner peripheral side of the rotating ring member, and is biased so as to protrude outward in the radial direction, and is also immersed inward in the radial direction. A support having a possible nail,
On the inner peripheral side of the rotating ring member, there are provided positioning engaging portions at which the claws protrude and engage at a plurality of positions corresponding to the guide position at intervals in the circumferential direction.
It is characterized by that.

  Further, in the present invention, the support member that supports the one brake disc may include a brake disc that is different from the two brake discs including the brake disc on the rear side, even on the side surface opposite to the direction in which the brake disc is supported. It is characterized by being supported so as to be rotatable.

  According to the present invention, the position of the guide portion for guiding the knitting yarn passing between the brake disks is adjusted by rotating the rotary ring member provided with the guide portion for guiding the entry side and the exit side of the knitting yarn. be able to. Since the spring that presses the back side along the axis of rotation of the brake disc is provided, the press between the brake discs can be performed uniformly.

  Further, according to the present invention, the position of the knitting yarn to be passed through the brake disk can be easily adjusted by engaging the claw provided on the support member with any one of the plurality of positioning engagement portions provided on the rotating ring member. Can be positioned.

  Further, according to the present invention, while the two brake disks are opposed to each other between the adjacent support members to form individual knitting yarn brakes, the support members are arranged between the adjacent individual knitting yarn brakes on both side surfaces. A plurality of brakes for knitting yarn can be formed in succession by sharing the back side of the brake disk so as to be rotatable.

FIG. 1 is a right side view showing a configuration of a knitting yarn brake 11 as an embodiment of the present invention. 2 is a front view and a right side view of the knitting yarn brake 11 shown in FIG. FIG. 3 is a plan view and a front view showing a part of the knitting yarn brake 11 of FIG. FIG. 4 is a right side view of main parts constituting the knitting yarn brake 11 of FIG. FIG. 5 is a right side view showing an example of a conventional knitting yarn brake 1.

  A knitting yarn brake 11 as an embodiment of the present invention will be described below with reference to FIGS. However, in this embodiment, portions corresponding to those described with respect to the knitting yarn brake 1 shown in FIG. In the description of each figure, the parts described above may be referred to with reference numerals not shown in the figure.

  FIG. 1 shows a configuration of a knitting yarn brake 11 as an embodiment of the present invention. The knitting yarn brake 11 is also oscillated and displaced in the knitting yarn supply path of the flat knitting machine to provide tension to the knitting yarn 3. Between. Since the knitting yarn brake 11 supplies the knitting yarn 3 while giving a passage resistance, the two brake discs 4 are arranged so as to face each other along the common axis and sandwich the knitting yarn 3 as in FIG. , 5. In this figure, however, only the brake disk 4 is shown because it is shown in the direction shown in FIG.

  The knitting yarn brake 11 further includes a pressing spring 9, a rotating ring member 12, and a support member 16. The support member 16 supports the brake disks 4 and 5 in a state where the brake disks 4 and 5 can rotate about the axis 11a. The pressing spring 9 is inserted along at least one of the axis 11a, for example, between the left brake disc 4 and the support member 16 on the back side thereof, and presses the brake disc 4 against the opposing brake disc 5. The rotating ring member 12 has an annular shape, and the inner surface on the inner peripheral side is supported by a support member 16 that supports the brake disk 4 in a state where the position can be adjusted by rotating around the axis 11a. 3 is provided for guiding the entry side and the exit side. In the knitting yarn brake 11, the rotating ring member 12 is rotated so that the knitting yarn 3 passes through the brake disk 4 as shown in FIG. 1B and FIG. The position to do can be adjusted.

  As in the case of FIG. 5, as the guide portion of the rotating ring member 12, two pins 12 a and 12 b are erected on the entry side of the knitting yarn 3 with a gap on the side surface, and on the exit side of the knitting yarn 3. The pin 12c is erected. The support member 16 is attached to the support frame 17. The support frame 17 is also provided with an exit guide 17a serving as an outlet for supplying the knitting yarn 3 to the needle bed side, and a rubber cushion 17b serving as a cushioning material when the tip of the tension spring 2 hits. The tension spring 2 shown in FIGS. 1 and 5 is provided with a swing fulcrum on the upper side, but the swing fulcrum can also be provided on the lower side or on the side.

  FIG. 2 shows a state where six knitting yarn brakes 11 of FIG. 1 are arranged side by side from (a) from the front, and (b) from the right side. The brake discs 4 and 5 use the same parts facing each other symmetrically and are supported between adjacent support members 16. The support member 16 supports the brake disks 4 and 5 on both sides, and also supports the rotating ring member 12 on the right side. That is, the support member 16 is continuously shared between the adjacent knitting yarn brakes 11 so as to rotatably support the back surfaces of the brake disks 4 and 5 on both side surfaces, and continuously supports a plurality of knitting yarn brakes. 11 can be formed. A support member 15 for one side that supports the brake disc 5 on the left side and does not support the brake disc 4 on the right side is used at the entire right end. The support member 16 that can support the brake disks 4 and 5 on both sides may be used at the right end, and the right side may not be used. Moreover, the structure which supports a brake disc on the both sides | surfaces of the support member 16 may be divided into two support members, and it may be made for each brake for knitting yarn to have two support members.

  FIG. 3 shows a state in which the knitting yarn brake 11 of FIG. 1 is disassembled into component parts, partly from a plane in (a) and from the front in part (b). 3B indicates the position and direction when viewing FIG. 1 as a right side view.

  The support member 16 is provided for each of the brake disks 4 and 5 on the opposite back side, and has disk support portions 16a and 16b that support the brake disks 4 and 5 so as to be rotatable around the axis 11a. A rotating ring support portion 16c is provided outside the disk support portion 16a in the radial direction, and is supported in a state of being inserted into the inner peripheral side of the rotating ring member 12. A boss 16d to be inserted into the coiled pressing spring 9 is provided on the left side in the direction of the axis 11a with respect to the disk support portion 16a. The right end of the pressing spring 9 presses the brake disc 4 against the brake disc 5 on the other side. Since the pressing spring 9 is provided along the axis 11a around which the brake disc 4 rotates, the pressing between the brake discs 4 and 5 can be performed uniformly. The rotating ring support portion 16c inserted on the inner peripheral side of the rotating ring member 12 is provided with a protrusion 16e at the tip and a claw 16f on the outer peripheral surface. A connecting portion 16g is provided on the side surface of the support member 16 on the disk support portion 16b side. Adjacent support members 16 are connected to each other through a connecting portion 16g so as to maintain a constant interval.

  FIG. 4 shows the support member 16, the rotating ring member 12 and the brake disc 4 as main components constituting the knitting yarn brake 11 of FIG. 1 from the right side. The claw 16f provided on the rotating ring support portion 16c of the support member 16 is formed by separating a part of the outer peripheral portion into a piece and the protruding end protrudes outward in the radial direction. The tip can also be immersed radially inward. The rotating ring member 12 is supported in a state where the inner surface 12d is mounted on the outer peripheral surface of the rotating ring support portion 16c of the support member 16. The inner surface 12d is provided with a recess 12e through which the protrusion 16e of the support member 16 can pass, and positioning engaging portions 12f, 12g and 12h with which the claw 16f can engage. If the positions of the three recesses 12e provided on the rotating ring member 12 are simultaneously aligned with the positions of the three protrusions 16e of the supporting member 16, the rotating ring member 12 can be attached to and detached from the supporting member 16 in the direction of the axis 11a. . When the rotating ring member 12 is mounted on the support member 16 and rotated around the axis 11a, the protruding end of the claw 16f is moved to the positioning engagement portion 12f. It stops at a position where it engages with either 12g or 12h. The positions at which the protruding ends of the claws 16f engage with the positioning engagement portions 12f, 12g, and 12h correspond to (a), (b), and (c) of FIG. When the rotating ring member 12 is rotated between these stop positions, the protruding end is drawn inward in the radial direction by elastic deformation of the claw 16f. On the outer peripheral side of the rotating ring member 12, there is also provided a convex portion 12i that can be hooked with a finger when rotating by hand.

  Of course, the direction along the axis 11a may be reversed. Further, the adjustment position of the knitting yarn 3 passed between the brake disks 4 and 5 is not limited to three, and can be changed according to the number of the positioning engagement portions 12f, 12g, and 12h. Although the pressing spring 9 can be provided on the brake disk 5 side, the brake disk 4 side which is the inner side of the rotating ring member 12 can be accommodated more compactly. Although the pins 12a, 12b, and 12c are used as the guide portions provided on the rotating ring member 12, a slit, a roller, or the like can be used.

2 Tension Spring 3 Knitting Yarn 4,5 Brake Disc 9 Press Spring 11 Knitting Yarn Brake 11a Axis 12 Rotating Ring Member 12a, 12b, 12c Pin 12f, 12g, 12h Positioning Engaging Portion 15, 16 Support Member 16a, 16b Disc Support part 16c Rotating ring support part 16f Claw

Claims (3)

In a knitting yarn brake of a flat knitting machine that supplies a knitting yarn while giving a passage resistance to a hook-shaped tension spring that swings and displaces in the knitting yarn supply path of the flat knitting machine,
Two brake discs arranged so as to face each other along a common axis and sandwiching a knitting yarn;
A support member for supporting each brake disc from the back side in a state where the brake disc can be rotated about the axis, and
A spring that presses the back side of at least one of the two brake discs along the axis; and
A guide part that has an annular shape and is supported by a support member on one side of the two brake discs on the inner peripheral side and guides the entry and exit sides of the knitting yarn on the side facing the brake disc. A rotation ring member capable of adjusting the guide position of the knitting yarn by the guide portion by rotation around the axis with respect to the support member;
A knitting yarn brake for a flat knitting machine. The support member is a support portion that supports the inner peripheral side of the rotating ring member, and has a claw that is urged so as to protrude outward in the radial direction and can be immersed inward in the radial direction. With a support,
On the inner peripheral side of the rotating ring member, there are provided positioning engaging portions at which the claws protrude and engage at a plurality of positions corresponding to the guide position at intervals in the circumferential direction.
The knitting yarn brake of the flat knitting machine according to claim 1.   The support member that supports the one brake disc supports a brake disc that is different from the two brake discs including the brake disc from the back side so that the brake disc can be rotated on the side surface opposite to the direction in which the brake disc is supported. The knitting yarn brake for a flat knitting machine according to claim 1 or 2, characterized in that:

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