JP2008297662A - Yarn feed-switching device in circular knitting machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a yarn feed-switching device in a circular knitting machine, which can stop a sliding plate such as a finger plate or a slide plate constituting a scissors-selecting means at a prescribed position to prevent an error operation or the like on selection, when the scissors-selecting means for selecting one scissors in a unit yarn-feeding device having a plurality of scissors assemblies selects the one scissors and swings to a yarn-feeding position. <P>SOLUTION: A concave portion for positioning the sliding plate is disposed, and a claw member for engaging the concave portion for positioning the sliding plate to fix the stoppage position of the plate at a prescribed position is disposed. The concave portion for positioning the sliding plate is engaged with the claw member at a prescribed position to prevent the rash operation of the plate constituting the yarn finger-selecting means on the selection of the scissor. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  According to the present invention, in a unit yarn feeder provided in a plurality of circular knitting machines, a scissors of a selected yarn among a plurality of scissors for guiding a yarn to be knitted on a knitting needle to a yarn feeding position is selectively shifted to a yarn feeding position. The present invention relates to a yarn feed switching device in a moving circular knitting machine.

  For the scissor selection, scissor selection means is used. The scissor selection means is a lateral movement of a slide plate integrated with the finger plate by an operation cam via a selector plate selected by the operation of an actuator determined corresponding to a predetermined knitting yarn and the corresponding finger plate. And the movement is transmitted to a coupling arm (scissors swinging arm) to swing the scissors (Patent Document 1).

  However, the operated members such as finger plates or slide plates of these devices move sideways by contacting the cams for operating these members according to the rotation of the knitting machine due to the displacement caused by the movement of the actuator. However, each operated member receives a strong impact when the cam contacts the operated member.

Therefore, there is no problem if the operated member stops at a predetermined position when the cam and the operated member come into contact with each other. It was conceived that a situation of stopping at the position occurred, making it impossible to switch the yarn or causing damage to the apparatus.
Japanese Patent Application No. 2006-278378

  In view of the above-described points, the present invention configures the scissor selection means in the scissor selection means for selecting one scissor among the unit yarn feeders having a plurality of scissor assemblies and swinging it to the yarn feeding position. A positioning plate is provided on a sliding plate such as a finger plate or a slide plate, and a claw member is provided to engage with the positioning recess and fix the stop position of the plate at a predetermined position. By engaging the positioning recess and the claw member, the plate constituting the scissor selection means at the time of scissor selection is prevented from being reluctant.

  The present invention described in claim 1 is a yarn feed switching device in a circular knitting machine, wherein the scissor swing means selecting means, the bottom part opening and fixing means, and the scissor opening and closing means operating means are the top part, and the scissor assembly and scissor swing In a unit yarn feeder that is provided with a moving means and a scissor opening / closing means on each bottom part and pivotally supports the bottom part at the bottom of the top part, a finger plate that is swung by a selector plate selected by an actuator, Multiple sets of overlapping plates consisting of slide plates that are superimposed on finger plates and pivotally attached by pins are stacked so that they can be slidable in units of each other. Provided with a concave portion for use, and one of the concave portions of the pair of the square plates. A claw member for engaging the toe portion is provided on a support means separate from the engaged member, and a coupling arm of the scissor rocking means is fitted and supported on a slide plate of the scissor rocking means selecting means. .

  A positioning recess is provided on a sliding plate such as a finger plate or a slide plate that constitutes a scissors selection means for selecting a predetermined scissors swinging means among a plurality of scissors swinging means. Since the claw member that engages and fixes the stop position of the plate or the like is provided at a predetermined position, the finger plate and the slide plate are engaged by engaging the positioning recess and the claw member at the predetermined position to be stopped. It is possible to prevent the sliding plate from moving and prevent it from stopping.

Embodiments of the present invention will now be described with reference to the drawings.
FIG. 1 is a side view of a unit yarn feeder 1 having a scissor swing means selecting means 100 of the present invention. The unit yarn feeder 1 shown in FIG. 1 has shown the state which removed the top side plate 2a and the bottom side plate 2b of the 1 side. The cylinder needle 3 shown in the lower part of the unit yarn feeder 1 represents one cylinder needle row, and the needle row extends in a ring shape in a direction perpendicular to the drawing sheet. The dial hands are omitted.

  The unit yarn feeder 1 includes a top part 4 and a bottom part 5. The top part 4 includes a scissor swinging means selecting means 100 for selecting a scissors swinging means 300 for swinging the scissors 35 for cutting and holding and guiding the yarn to be supplied from the standby position to the yarn supplying position, and a scissor opening / closing means operation. Means 400 and bottom part opening fixing means 600 for opening the bottom part 5 of the unit yarn feeder 1 in order to facilitate maintenance inside the unit yarn feeder 1. The bottom part 5 includes a scissor assembly 200 having a scissors 35 for holding the selected thread and guiding the thread to the needle 3, a scissor swinging means 300, and a scissor opening / closing means 500. The bottom part 5 has a bottom part opening and fixing means 600 that fixes the bottom part 5 with respect to the top part 4 or releases the fixing so as to be removable. The top part 4 is provided with a front bracket 6 provided on the front side of the machine base and a top side plate 2a on both sides of a rear bracket 7 provided in a pair with the front bracket 6, and the scissors rocking means selection means 100 and the scissors described above are provided therein. The opening / closing means operating means 400 is arranged, and the bottom part opening fixing means 600 is suspended from the lower edge of one of the pair of top side plates 2a. The bottom part 5 has a predetermined interval between shafts 9, 9... Provided between the two bottom side plates 2b at appropriate positions. The scissor assembly 200, the scissor swinging means 300, and the scissor swinging means for holding and guiding the yarn therebetween. The opening / closing means 500 is arranged, and the bottom part opening fixing means 600 is suspended from the top side plate 2 a of the top part 4. The bottom part 5 is pivotally supported by the front bracket 6 of the top part 4 so as to be removable and swingable by a shaft 10.

  In the illustrated example of the unit yarn feeding device 1, the types (numbers) of yarns to be fed are six types (six). Accordingly, six sets of unit bodies constituting each of the scissor swing means selection means 100, the scissor assembly 200 of the yarn cutting and holding guide means, and the scissor swing means 300 are provided, but the scissor opening / closing means operating means 400 is provided. , Scissor opening / closing means 500 is common to each unit, so one set is used. A plurality of unit yarn feeders 1 are provided in a ring shape above the cylinder needle row.

The top part 4 will be described.
The top part 4 is attached to the circular knitting machine frame 11 by a front bracket 6 and a rear bracket 7. An actuator 12 is provided above the top part 4 so as to rotate in synchronization with a cylinder (not shown) that supports the cylinder needle 3.
The actuator 12 has a number of swinging claws 13 corresponding to the number of types of knitting yarns to be selected. By swinging the swinging claws 13 corresponding to a predetermined yarn, the actuators 13 are moved to the actuators. 12 is in contact with the selector butt 14b of the selector plate 14a of the selector 14 which constitutes the scissor rocking means selecting means 100 together with the actuator 12 so as to push down the selector plate 14a.

The selector 14 supports a predetermined number of selector plates 14a (six in this embodiment) in parallel with a selector guide 14c at equal intervals and slidably up and down. The selector 14 will be described in detail. A selector bat 14b whose position is changed is provided on the upper edge of each selector plate 14a, and each of the selector bats 14b is a swinging claw of the actuator 12 provided above the selector 14. 13 corresponds. When the swinging claw 13 comes into contact with the selector butt 14b by the rotation of the knitting machine with the swinging claw 13 swinging, the selector plate 14a is selected and pushed down in the selector guide 14c. . Protrusions 14d are provided at both ends of the lower edge of the selector plate 14a.
The protrusion 14d is supported so as to protrude downward from a slit 8a provided in a top cover 8 covering the space between the front bracket 6 and the rear bracket 7 and spaced at an interval equal to the interval of the selector plate 14a. ing.

  The finger plate 15 can be slid independently in parallel at equal intervals by a separator 52 (shown in FIG. 6a) at a position below the selector 14 in contact with each selector plate 14a, like the selector plate 14a. It is provided as follows. The finger plate 15 has finger plate butts 15 a and 15 b protruding from both upper ends, and the finger plate bats 15 a and 15 b can protrude out of the top cover 8 from the slits 8 a of the top cover 8. The finger plate 15 has a pair of left and right elongated holes 15c extending in the lateral direction, and a guide plate-like body 15d projects downward on one side edge of the lower edge, and a positioning plate on the other edge. Two recessed portions 15x are provided at the top and bottom. The finger plate 15 is provided with a slide plate 50 in close contact with its side surface, and both are pivotally attached by pins 51. An inverted U-shaped recessed portion 50b is pivotally attached to the protruding portion 50a provided on the lower end edge of the slide plate 50, and a claw member 50c having a lower end edge as a fulcrum is pivotally attached to the lower end edge of the other side. The claw member 50c is fitted into one of the upper and lower positioning recesses 15x of the finger plate 15 to fix the positions of the finger plate 15 and the slide plate 50. A spring 50d is stretched between the claw member 50c and the finger plate 15.

  In addition, on the lower edge of the slide plate 50, two left and right recessed recesses 50x for positioning the slide plate are provided. Then, a claw member 50y is provided by a shaft 50s provided between the top side plates 2a, 2a, and the tip thereof is engaged with the recessed portion 50x. The claw member 50y engages the claw portion with the recessed portion 50x by a spring 50z. The claw members 15y and 50y are supported by a supporting member such as a top side plate which is separate from the engaged members such as the finger plate 15 and the slide plate 50 with which the claw portion engages as described above, and are always in a fixed position. However, when the finger plate 15 or the slide plate 50 is moved up and down or moved left and right, the tips of the claw members 15y and 50y are fitted so far. The amount of movement and stop position of each plate is determined by exiting from the recessed portion that has been left and entering the adjacent recessed portion.

  As described above, one set of slide plate 50 and finger plate 15 pivotally attached by the overlapping pin 51 are divided into a plurality of sets (six sets in this embodiment) separators 52, and block-like scissors rocking means together with the selector 14 is provided. Although the selection means 100 is used, the scissor rocking means selection means 100 is connected to the scissor rocking means 300 as follows.

  In the scissors rocking means selecting means 100, the overlapping slide plate 50 and finger plate 15 are such that the protruding portion 50a of the slide plate 50 and the guide plate 15d of the finger plate 15 are in contact with each other. When the separator 52 is overlapped with the slide plate 50, the slide plate 50 is sandwiched between the finger plate 15 and the separator 52, and the U-shaped recessed portion 50b of the protruding portion 50a of the slide plate 50 has finger fingers on both sides thereof. The bag 15 is closed by the guide plate 15d of the rate 15, and the tip of the coupling arm 34 of the above-described scissors rocking means 300 is inserted into the recessed portion 50b, whereby the scissors rocking. The moving means selecting means 100 is connected to the scissor swing means. Re slide plate 50 of the scissors swinging means selection means 100, the movement of the lateral behavior of the finger plate 15 can be transmitted to the scissor rocking means 300.

A pin 15g is passed through each of the long hole 15c in the lower part of the finger plate 15 and the long hole 50c of the slide plate 50 to serve as a guide member.
When the finger plate bats 15a and 15b protrude from the slits 8a of the top cover 8, the reset cam 17 is located at a position where the finger plate butt 15a comes into contact with the finger plate butt 15a, and the down cam 18 is placed at a position where the finger plate bat 15b comes into contact with the finger plate bat 15b. It is provided by the same means.
Further, the top part 4 is provided with a scissor opening / closing means operating means 400 including a control lever 21 and an opening / closing cam 22 for operating the scissors opening / closing means 500 provided in the bottom part 5 described later. .

  Each of the bottom parts 5 holds yarns, and a selected one of them swings to feed the knitting yarn to the knitting needle, and the scissor assemblies 200 are individually rocked. It has a plurality of scissor swinging means 300 and a scissor opening / closing means 500, and the top part 4 and the bottom part 5 are fixed to the top part 4 and the bottom part 5 with the inside of the bottom part 5 open for maintenance, or the bottom part 5 is set to the top. It has a bottom part opening and fixing means 600 that can be removed from the part 4.

The scissor assembly 200 will be described. The scissors assembly 200 has a concave portion formed at a tip portion thereof, and a movable blade 35b of the fixed blade 35a of a prismatic fixed blade 35a having the portion as a yarn path 37 so as to cover the yarn path 37 with the tip portion. The scissors 35 are stacked on one side, and a thread presser plate 38 and a plate spring 39 that presses against the plate 38 are stacked on the other side of the fixed blade 35a, and are slidably supported by the fixed blade 35a. The movable blade 35b, the thread presser plate 38, and the leaf spring 39 are fixed to the slider 40.
The slider 40 has a movable blade 35b on one side and a thread on the other side of the fixed blade 35a in a space formed between two identical side plates 41, 41 via spacers 40a, 40b. The presser plate 38 and the leaf spring 39 are inserted in a stacked state. The protrusions 36, 38a, 39a protruding from the side edges of the movable blade 35b, the thread presser plate 38, and the leaf spring 39 are engaged with the window 41a provided on one or both of the side plates 41, 41 of the slider 40. By projecting, the movable blade 35b, the thread presser plate 38, the leaf spring 39 and the slider 40 are integrated, and the slider 40 is moved up and down with respect to the fixed blade 35a positioned between the fixed blade 35a and the thread presser plate 38. By moving, the movable blade 36, the thread presser plate 38, and the leaf spring 39 are supported so as to move up and down with respect to the fixed blade 35a. The slider 40 is provided with an upward concave portion 41b and a downward concave portion 41c with which bars 55c and 55d provided on control arms 55a and 55b of a scissor opening / closing means 500 described later are engaged.
In the scissor assembly 200, the upper part of the prismatic fixed blade 35 a is fixed to the scissor plate 32. The fixing means are as follows. As shown in FIG. 3B, a shallow groove 32a is cut on one surface of the scissor plate 32, and the end of the fixed blade 35a is fitted into the groove 32a to integrate them. A square small hole 32b, 32c, 32d, 32e is provided on both sides near the upper and lower ends of the groove 32a, and a scissor clip 32f made of an elastic plate bent in a substantially M shape is formed between the small holes 32b, 32c and 32d, 32e. By spanning as shown in the BB cross-sectional view of FIG. 3B, the fixed blade under the elastic pressure of the scissor clip 32f by the center part 32g of the scissor clip 32f and the flanges 32h of the leg-like parts at both ends of the scissor clip 32f. 35 a is fixed to the scissor plate 32.
When the scissor assembly 200 is in the standby position, the movable blade 35b and the thread presser plate 38 advance relative to the fixed blade 35a, cut the thread end, and nip the thread end with the fixed blade 35a head and the thread retainer plate 38. And hold.
A scissor plate 32 that supports the scissor assembly 200 is pivotally supported by a coupling arm 34 of a scissor rocking means 300 described later.

  The scissor rocking means 300 will be described. A plurality of (six in this embodiment) scissor plates 32 serving as the scissors rocking means 300 are arranged on the shaft 31 provided between the side plates 2a, 2a of the bottom part 5 in the counterclockwise direction in FIG. It is urged to turn and is supported in a swingable manner. A scissor assembly 200 is provided on the scissor plate 32 as described above. A coupling arm 34 pivotally supported by a shaft 34a is pivotally attached to the scissor plate 32. The upper end portion of the coupling arm 34 has a disk shape, and is inserted and fitted into a bag-like recessed portion 50 b formed on the slide plate 50 of the scissors rocking means selecting means 100 of the top part 4. Therefore, the coupling arm 34 swings in accordance with the left-right movement of the slide plate 50, and the scissor plate 32 connected thereto reciprocally swings, and the scissor assembly 200 supported by the scissor plate 32 also feeds the standby position. Swings between the yarn positions.

  The tip end of the coupling arm 34 is inserted into the recessed portion 50b of the slide plate 50 when the gap between the top part 4 and the bottom part 5 is opened. 100 and the scissor rocking means 300 of the bottom part 5 can be easily disengaged. When connecting the two, it is only necessary to insert the tip of the coupling arm 34 into the recess 50b. To release the connection, simply pull out the coupling arm.

The scissor opening / closing means 500 for operating the movable blade 35b of the scissor assembly 200 is configured as follows.
A control block 55 having an inverted U-shaped cross section is supported above the scissor plate 32 so as to be swingable by a shaft 56, and four control arms 55a, 55a, 55b, 55b are suspended from four corners of the control block 55. The intervals between the control arms 55a and 55a and the intervals between the arms 55b and 55b are larger than the interval between the plurality of scissors plates 32 arranged side by side, and hang down outside the scissors plates 32 arranged side by side. A bar 55c is provided between the lower ends of the control arms 55a and 55a, and a bar 55d is provided between the lower ends of the control arms 55b and 55b. The control block 55 is provided with a spring 57 and urged to turn counterclockwise in FIG. Long holes 55e and 55f for restricting the movement of the bars 55c and 55d that move up and down according to the up and down movement of the control block end when the control block 55 swings are provided in both side plates 2a and 2a. 55f and the bars 55c and 55d are engaged, and the bar 55c descending in the long hole 55e is fitted into the concave portion 41b opened upward of the slider 40 of the scissors 200, and the movable blade 35b is pushed down. When swiveling in the clockwise direction, the bar 55d rising in the long hole 55f is fitted into the concave portion 41c opened downward of the slider 40 of the scissor assembly 200, and the movable blade 36 is pulled up.

  A control plate 58 is pivotally supported on the control block 55 vertically upward. The top 58 a of the control plate 58 is provided on the top part 4 and is in contact with the control lever 21 that constitutes the scissor opening / closing means operating means 400 together with the opening / closing cam 22. The control lever 21 is supported so as to be vertically movable. An opening / closing cam 22 is supported above the control lever 21 in the same manner as the actuator 12, the reset cam 17, and the down cam 18. Since the control lever 21 is pushed down during operation, the movement is transmitted to the control plate 58, and the control block 55 pivots in the clockwise direction in FIG.

The bottom part turning fixing means 600 will be described. The bottom part turning fixing means 600 is a means for fixing the position of the bottom part 5 in an opened state during maintenance of the bottom part, etc., and a lock member 61 that locks the bottom part 5 in a normal use state and an opening. It comprises an opening angle determining member 62 for fixing the state.
The lock member 61 is composed of a pair of parallel latch levers 63 slidably provided in the width direction above the bottom part 5, and the pair of levers 63 are connected to each other by pins 64 and 65 at both ends. The framework is configured. The pins 64 and 65 are slidably fitted into horizontally elongated holes 66 and 67 provided in the bottom side plates 2 a and 2 b of the bottom part 5. The pin 65 is provided with a spring 68 so that the latch lever 63 is always urged to move leftward in FIG. The pin 64 at the left end (in FIG. 1) of the latch lever 63 is normally engaged with a flange 69 extending below the rear bracket 7 of the top part 4. And when the said collar part 69 and the pin 64 remove | deviate, the bottom part 5 will turn in the anticlockwise hand direction in FIG. 1 centering on the shaft 10 which pivotally supports the bottom part 5 and the top part 4. Become.

  An example in which the turning position (angle) can be fixed at two places during the turning is shown in FIGS. The stay 72 of the opening angle determining member 62 is suspended by a shaft 71 provided at a portion where the top side plates 2a, 2a protrude toward the bottom side plates 2b, 2b. The stay 72 has a guide groove 73 extending in the center, and a pin 74 provided on the side plates 2b, 2b of the bottom part 5 is slidably fitted in the guide groove 73. In the embodiment, a plurality of the guide grooves 73 are provided with recessed groove portions 75 and 76 at the central portion and the end portion, and when the pin 74 is fitted into the recessed groove portion 76 at the end portion, the bottom part 5 is opened 90 degrees. When it is fixed and fitted into the central recess 75, the bottom part 5 is opened and fixed by 45 °. A stay 72 is cut out at the opposite side edge provided with the recessed groove portions 75 and 76 to form a pin relief notch 73a. The pin relief notch 73 a is provided to remove the pin 74 engaged with the guide groove 73 of the stay 72 from the groove of the stay 72 and release the engagement between the stay 72 and the pin 74.

Next, the operation of the unit yarn feeder 1 will be described.
When the scissor assembly 200 of the unit yarn feeder 1 is in the standby position, as shown in FIG. 1, all the scissors 200 raise the yarn path 37 and the blade edge portion. When one of the scissor assemblies 200 is selected and swinging to the yarn feeding position is performed, the swinging claw 13 of the actuator 12 corresponding to the scissor assembly 200 is operated. For example, the swinging claw 13 of the leftmost actuator is swung, and the selector butt 14b is pushed by rotating the knitting machine so that the selector butt 14b is pushed in. The protrusion 14d at the lower edge of the selector plate 14a is moved to the finger plate 15 The finger plate 15 is swung in the clockwise direction around the pin 51 to project the finger plate butt 15b. By this movement, the finger plate butt 15b comes into contact with the rotating down cam 18 and is moved to the right in FIG. 1 by the cam. When the finger plate 15 is pushed by the selector plate 14a, the claw member 15y engaged with the recessed portion 15x at the lower position of the side edge of the finger plate 15 is engaged with the recessed portion 15x at the same higher position. By combining, the start point and the end point of the displacement of the finger plate 15 are accurately positioned.

  By the right row of the finger plate 15, the slide plate 50 integrated with the finger plate 15 also moves right. At this time, as shown in FIG. 1, the slide plate 50 is engaged with the claw member 50y at the right notch 50x provided at the lower edge thereof. 50y engages with the recessed portion 50x in the left position to determine and stop the stop position, overruns due to the remaining power of the lateral action, rebounds by reaction, and stops at the illegal position. That doesn't happen either.

  Due to the right row of the slide plate 50, the coupling arm 34 whose front end is fitted to a bag-like recessed portion 50b provided at the lower edge of the slide plate 50 is moved clockwise around the shaft 34a. And the scissor plate 32 connected to the coupling arm 34 also pivots about the shaft 31 in the clockwise direction. By this movement, the scissor assembly 200 supported by the scissor plate 32 is in a yarn feeding position oriented in the vertical direction. The above-described operation is the movement of the scissor oscillating operation system device including the scissor oscillating means selecting means 100 and the scissor oscillating means 300.

  Next, the operation of the scissor opening / closing operation system apparatus including the scissor opening / closing means 500 and the scissor opening / closing means operating means 400 will be described. The opening / closing cam 22 is actuated in synchronization with the swing of the scissor assembly 200 to the yarn feeding position, the control plate 58 is pushed down via the control lever 21, and the control block 55 is rotated in the clockwise direction in FIG. Turn to. At this time, the scissor assembly 200 is in the vertical yarn feeding position, but the bar 40 at the tip of the control arm 55b that is suspended from the downwardly recessed portion 41c of the slider 40 integrated with the movable blade 36 of the scissor assembly 200 and the control block 55 is used. 55d is engaged, the slider 40 is raised as the control block 55 moves in the clockwise direction, and the movable blade 35b integral with the slider 40 is pulled up. The upward movement of the movable blade 35b and the upward movement of the thread presser plate 38 and the thread spring 39 are performed integrally, and the thread nipped in the thread path 37 of the fixed blade 36 is released and supplied to the needle 3.

An operation for opening or removing the bottom part 5 for maintenance or the like will be described.
As shown in FIG. 1, the bottom part 5 is hinged to the top part 4 by a shaft 10, and is provided on a latch lever 63 of a lock member 61 in a flange 69 provided on a rear bracket 7 of the top part 5. The pin 64 is pulled by the spring 68 to fit, and the bottom part 5 is fixed to the top part 4. Therefore, by pulling the pin 65 provided on the latch lever 63 from the front side (right side in FIG. 1) of the unit yarn feeder 1 against the attractive force of the spring 68, The engagement with the flange 67 of the top part 4 is released and the lock is released.

  When the pin 64 is disengaged from the flange portion 69, the bottom part 5 pivots in the counterclockwise direction in FIG. 1 around the shaft 10 by its own weight, so that the bottom part 5 passes through the guide groove 73 of the stay 72 hanging from the top part 4. 5 pin 74 slides and the stay 72 is pulled by the spring 77 so as to pivot in the clockwise direction, so that the pin 74 fits into the recessed portion 75 of the guide groove 73 and the pivoting movement of the bottom part 5 is fixed. Is done. The position is a position where the bottom part 5 indicated by a one-dot chain line in FIG. When the bottom part 5 is swung by 90 °, the stay 72 is manually moved against the spring 77 and turned counterclockwise in FIG. 5 to release the engagement between the recessed portion 75 and the pin 74 and then the pin 74. Can be moved to the tip of the guide groove 73 in the guide groove 73 to engage the pin 74 and the recessed portion 76 to the position shown by the two-dot chain line in FIG.

  When removing the bottom part 5 from the top part 4 for the sake of maintenance, the locking member 61 is opened in the same manner as described above, the hook 69 of the top part 4 and the pin 64 of the latch lever 63 are disengaged, and the bottom part 5 is removed. The pin 74 of the bottom part is moved along the guide groove 73 of the stay 72 by turning, and the pin 74 is brought out of the groove 73 from the pin relief notch 73a of the guide groove 73, whereby the pin 74 and the stay 72 are engaged. Then, the shaft 10 pivoting the bottom part 5 on the top part 4 is removed, and the bottom part 5 is removed from the top part 4.

  As described above, the device according to the present invention is configured so that the recesses provided on the edge portions of the finger plate and the slide plate constituting the scissor oscillating means selecting means are provided separately from the plate at the upper and lower or left and right simultaneous moving ends of the plate. By engaging with the claw member provided, each plate stops at a predetermined position without causing reluctance such as reverse movement even when subjected to a strong impact at the time of transition.

The side view which shows the principal part of this invention apparatus. The side view of the scissor of this invention apparatus. 2A is a sectional view taken along line AA in FIG. 2, B is a sectional view taken along line BB in FIG. 2, and C is a sectional view taken along line CC in FIG. A is a side view of the fixed blade, B is a front view of the fixed blade, C is a side view of the movable blade, D is a front view of the movable blade, E is a side view of the thread presser plate, F is a front view of the thread presser plate, G is a side view of the leaf spring, and H is a front view of the leaf spring. Operation | movement explanatory drawing of the bottom part open | release fixing means of this invention apparatus. A is a side view of a slide plate, B is a side view of a finger plate, and C is a side view of a separator.

Explanation of symbols

1 Unit yarn feeder 2b Bottom part side plate 4 Top part 5 Bottom part 12 Actuator 14 Selector 14a Selector plate 15 Finger plate 15x, 50x Positional notch 15y, 50y Claw member 34 Coupling arm 50 Slide plate 51 Pin 100 Scissor swing means selection means 200 Scissor assembly 300 Scissor swing means 400 Scissor opening / closing means operating means 500 Scissor opening / closing means 600 Bottom part opening fixing means

Claims (1)

  Scissors swing means selection means, bottom part opening and fixing means and scissors opening and closing means operating means are provided on the top part, scissors assembly, scissors swing means and scissor opening and closing means are provided on the bottom part, and the bottom part is provided below the top part. In a unit yarn feeder that is pivotally supported, an overlap plate comprising a finger plate that is swung by a selector plate selected by an actuator, and a slide plate that is superimposed on the finger plate and pivotally attached by a pin. Plural sets are stacked so as to be slidable with each other, and a pair of positioning recesses are provided on the peripheral portions of the finger plate and the slide plate, respectively, and a toe is provided on one of the pair of recesses of each plate. The claw member for engaging the part is provided on a support means separate from the engaged member. , Yarn feeding switching device in a circular knitting machine comprising fitted pivotally coupling arms of the scissors rocking means on the slide plate of the scissors swinging means selection means.

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