JP2005330625A - Apparatus for changing interval between needle hooks and base yarn reeds in double raschel machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an apparatus enabling easy change of the interval between the front and rear needle hooks and base yarn reeds of a double raschel machine and usable to an oil bath-type machine as well as an open-type machine. <P>SOLUTION: The apparatus is provided with movable supporting metals 7a, 7b for linearly moving front and rear needle hooks 2a, 2b together with knitting needle rows 1a, 1b in a direction to approach or separate the hooks, hangers 28, 29 of the front and rear base yarn reeds 24, 25 linearly movable in separating and approaching directions and driving means 9a, 9b, 40a, 40b to move the above elements. The interval between the front and rear needle hooks 2a, 2b is changeable together with the knitting needle rows 1a, 1b by moving the supporting metals 7a, 7b and the hangers 28, 29 by the action of the driving means to change the interval of the front and rear base yarn reeds 24, 25. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to an apparatus for changing a distance between front and rear needle hooks and a yarn thread hook in a double raschel machine.

  Conventionally, in a double raschel machine having two front and rear knitting needle rows, when changing the thickness of the fabric to be knitted, it is necessary to change the interval between the front and rear knitting needle rows facing each other. It is necessary to change the interval of the needle hook (trick plate).

  Specifically, to change the interval, loosen the adjustment rods that are indirectly connected to the needle hook, adjust their length, and fine-tune the needle hook using the dial gauge. It was necessary to tighten each adjustment rod. In addition, it has been necessary to adjust the front and back of the ground yarn by increasing or decreasing the distance between the front and rear needle hooks.

  As an apparatus for changing and adjusting the distance between the front and rear needle hooks, the present applicant has proposed and applied for the apparatuses of Patent Document 1 and Patent Document 2 below.

  In the apparatus of Patent Document 1, an eccentric mechanism having a lock means is connected to one end of each connecting rod connected to each support lever that supports the front and rear opposing trick plates (needle hooks), and the trick plate spacing is increased. When changing, release the locking means and turn the handle attached to the eccentric mechanism to displace the connecting rod, thereby rotating the support lever and changing the interval between the front and rear trick plates supported at the tip I have to.

  However, in this proposed apparatus, the change adjustment work is considerably complicated and troublesome, and the trick plate, that is, the needle hook, is turned around the axis of the support lever and is displaced. It cannot be applied to swinging machines.

In the case of the device of Patent Document 2, the rotation of the screw shaft provided in the front-rear direction includes the front machine base and the rear machine base provided with the front and rear knitting needle rows and the front and rear intermediate frames that support the front and rear trick plates. As a result, the distance between the trick plates is adjusted. Therefore, a large driving force is required for the movement of both the front and rear bases described above, and the apparatus for movement is enlarged, and the cam portion on the main shaft that is the driving source of the knitting machine is an oil bath type model. Because of the mechanism that cannot move the spindle including the cam portion, it cannot be used as it is, and the cost is considerably high.
JP 2000-80545 A JP 2003-201655 A

  The present invention has been made in view of the above, and it is possible to easily change the distance between the front and rear needle hooks and the front and rear ground thread rods in a double raschel machine with a simple operation, and to drive the cam on the main shaft. It is an object of the present invention to provide an apparatus for changing the interval between the needle hooks and between the hooks for the ground yarn, which can be used for both the oil bath type and the open type.

  The present invention that solves the above-mentioned problems includes two front and rear knitting needle rows, front and rear needle hooks attached to the both knitting needle rows, and front and rear intermediate frames that hold the front and rear knitting needle rows and the needle hook so that they can be knitted. A double raschel machine comprising a front yarn hook, a rear yarn hook, and a pile yarn rod. The support metal before and after moving in the direction is provided so as to be linearly movable in the separation and proximity direction, and the hangers for supporting the front and back ground yarn ridges are separated from each other, and are provided so as to be linearly movable in the proximity direction, Drive means for moving the support metal and the hanger is provided, and the distance between the front and rear needle hooks can be changed together with the knitting needle row by the movement of the support metal and the hanger by the operation of each drive means. While, and characterized by being capable of changing the distance of the ground yarns reed around.

  According to this interval changing device, by operating each of the drive means, the needle hook and the ground yarn hook can be moved linearly to change and adjust the interval, so that the changing operation can be easily performed. Further, since a large capacity driving force is not required, it is possible to easily cope with a long knitting width.

  In the interval changing device described above, it is preferable that the interval between the front and rear needle hooks and the interval between the front and rear yarn hooks can be changed at the same time, whereby the changing operation can be further simplified and the workability can be improved. Increase the interval adjustment time significantly.

  In addition, it is preferable that the driving means for moving the support metal of the needle hook and the hanger of the ground yarn hook is composed of an eccentric mechanism provided on the driving shaft for movement, thereby making the structure simple. Therefore, it is possible to adjust the interval accurately, move the support metal with a compact mechanism, and implement it at low cost.

  In particular, when the driving means for moving the support metal of the needle hook and the hanger for the ground yarn hook is configured to be interlocked by rotation transmission means including a timing belt, the distance between the front and rear needle hooks and the front and rear grounds It is possible to change and adjust the thread lash spacing at the same time with one driving force.

  The present invention can easily change the distance between the front and rear needle hooks and the front and rear yarn hooks in a double raschel machine with a simple operation, and the cam portion of the drive source on the main shaft is either an oil bath type or an open type. It can also be used for models.

  Next, the best mode for carrying out the present invention will be described based on an embodiment shown in the drawings.

  FIG. 1 is a side sectional view showing an outline of a double raschel machine according to one embodiment of the present invention, FIG. 2 is an enlarged view of an essential part of the same, and FIG. 3 is a partial view showing a portion of a support metal for moving a needle hook. FIG. 4 is an enlarged cross-sectional view, FIG. 4 is the same plan view, FIG. 5 is the same cross-sectional view, and FIG. 6 is a cross-sectional view of the hanger portion that supports the yarn thread rod.

  In the figure, 1a is a front knitting needle row in which a number of knitting needles are arranged in parallel in the knitting machine width direction (perpendicular to the paper surface of FIG. 1), and 1b is a rear knitting needle row. 11a and 11b are fixed and held in parallel. 2a is a front needle hook (trick plate), 2b is a rear needle hook (trick plate) and extends in the knitting machine width direction corresponding to the knitting needle rows 1a and 1b, respectively. It is provided so that it can be moved up and down. Reference numeral 3a denotes a front stitch comb, and 3b denotes a rear stitch comb, which are arranged in the knitting machine width direction corresponding to the knitting needle rows 1a and 1b, respectively. Reference numerals 13a and 13b denote front and rear drive arms that hold the stitch comb bars 3a1 and 3b1 to which both the stitch combs 3a and 3b are attached.

  Reference numerals 4a and 4b denote front and rear intermediate frames that support the knitting elements such as the knitting needle rows 1a and 1b, the needle hooks 2a and 2b, and the stitch combs 3a and 3b. A plurality of the front and rear intermediate frames 4a and 4b are respectively fixed upright while facing the front side and the rear side on the base 6 and spaced in the knitting machine width direction.

  The front and rear needle hooks 2a and 2b are fixed and held on the upper ends of the holding portions 12a and 12b on the opposite sides of the intermediate frames 4a and 4b, respectively. The holding portions 12a and 12b Are attached to the front and rear bearing shafts 10a, 10b by means of fitting means or the like.

  The front and rear support shafts 10a and 10b are provided so as to be movable away from each other and in directions close to each other at the upper portions of the plurality of intermediate frames 4a and 4b arranged at intervals in the knitting machine width direction. As shown in the drawing, the support metal 7a, 7b for moving the needle hook is preferably supported by penetrating the opposite end protruding from the intermediate frames 4a, 4b toward the center. The support metals 7a and 7b are separated from each other and moved in the proximity direction as the support metals 7a and 7b move.

  For the front and rear knitting needle rows 1a and 1b, the needle bars 11a and 11b can be moved up and down by the front and rear holding members 14a and 14b formed integrally with the holding portions 12a and 12b and supported by the support shafts 10a and 10b. The needle shafts 2a and 2b are supported so as to be moved away from each other and in directions close to each other by the movement of the support shafts 10a and 10b.

  Further, the front and rear drive arms 13a and 13b for holding the stitch comb bars 3a1 and 3b1 are also attached to the support shafts 10a and 10b by fitting to the front and rear stitch combs 3a and 3b. With the movement of 10b, they are provided so as to move away from each other and in the proximity direction.

  The front and rear support metals 7a and 7b have their base portions engaged and held by support guide portions 80a and 80b such as linear guides integrally provided as upper portions of the front and rear intermediate frames 4a and 4b. It is provided so as to be slidable in the opposite direction (the longitudinal direction of the knitting machine) while maintaining a constant support state. The support metals 7a and 7b are provided with driving means 9a and 9b for moving them. 3 to 5, reference numeral 81b denotes a receiving member of the support guide portion 80b, 82b denotes a pressing member, and 83b denotes a guide rail.

  As the drive means 9a and 9b, in the case of the illustrated embodiment, the front and rear drive shafts 15a and 15b for moving the needle hooks that extend in the knitting machine width direction and are rotatably supported by the intermediate frames 4a and 4b are provided. , Eccentric levers 17a and 17b are provided which are attached at one end via eccentric mechanisms 16a and 16b and can be reciprocally displaced in one direction by an eccentric motion by the eccentric mechanism, and the other ends of the eccentric levers 17a and 17b are provided. The support metals 7a and 7b are rotatably connected by connecting pins 18a and 18b. That is, as the eccentric levers 17a and 17b are displaced by the rotation of the drive shafts 15a and 15b, the support metals 7a and 7b, that is, the support shafts 10a and 10b move away from each other and move linearly in the proximity direction. The needle hooks 2a and 2b held via the holding portions 12a and 12b move linearly, and the distance between the needle hooks 2a and 2b is changed and adjusted. At the same time, the knitting needle rows 1a and 1b and the stitch combs 3a and 3b are also moved.

  The needle bars 11a and 11b for holding the knitting needle rows 1a and 1b are attached to fulcrum shafts 19a and 19b penetrating the intermediate frames 4a and 4b separately from the holding members 14a and 14b. Connected to the drive arms 20a and 20b via connecting rods 21a and 21b, and further to the drive arms 20a and 20b via a cam portion (not shown) on the main shaft of a warp knitting machine serving as a drive source and rods 22a and 22b. The vertical movement accompanying the rotation of the main shaft is applied to the needle bars 11a, 11b, that is, the knitting needle rows 1a, 1b via the drive arms 20a, 20b, and a predetermined knitting operation is performed. Has been.

  The front and rear drive arms 20a and 20b and the connecting rods 21a and 21b are connected via cross joints 23a and 23b for adjusting the reference position of the knitting needle accompanying the adjustment of the distance between the needle hooks 2a and 2b. ing. The cross joints 23a and 23b are pivotally attached to the drive arms 20a and 20b, and joint portions 23a1 which are connectable to the connecting rods 21a and 21b and have different projecting lengths on the four sides thereof. 23a4, 23b1 to 23b4, and by selecting and using one of the joint portions 23a1 to 23a4 and 23b1 to 23b4, a reference position for the vertical movement transmitted from the drive arms 20a and 20b to the knitting needle rows 1a and 1b. Is set.

  The needle hooks 2a and 2b and the stitch combs 3a and 3b are also configured so as to be provided with a necessary knitting operation such as a swinging motion. Since this point is not the gist of the present invention, detailed illustration and explanation will be omitted.

  In FIG. 1, reference numeral 24 denotes a ground yarn hook for guiding the ground yarn forming the front base fabric, 25 denotes a ground yarn hook for guiding the ground yarn forming the rear base fabric, and 26 denotes both the front and rear bases. A connecting thread ridge for guiding a connecting thread for connecting cloths is shown. Each of these scissors 24, 25, and 26 has a yarn introduction needle corresponding to the front knitting needle and the rear knitting needle at the tip thereof, and is predetermined in the front and back in the upper part of the knitting portion by the knitting needle rows 1a and 1b. Are arranged in parallel at intervals of. The number of ridges 24, 25, and 26 is not limited to two as shown in the figure, and can be set as appropriate according to the warp knitted fabric to be knitted.

  Reference numeral 28 denotes a hanger for supporting the front ground yarn cage 24, 29 is a hanger for supporting the rear fabric yarn cage 25, and 30 is a hanger for supporting the connecting yarn rod 26, each of which can be jog-moved. Hold on. A hanger 30 for connecting yarn ridges is attached to a support shaft 33 supported by a mounting member 32 suspended from a support 31 extending in the knitting machine width direction above the knitting portion. An arm member 34 is attached to the support shaft 33, and the arm member 34 is connected to a cam portion on a knitting machine main shaft via a connecting rod 35, and the connecting rod is rotated by the rotation of the main shaft. The support shaft 33 is rotated via the arm member 34 and the arm member 34, whereby the hanger 30 is swung, and the connecting yarn guided by the connecting yarn rod 26 held by the hanger 30 is transferred to the front and rear knitting needle rows. It is comprised so that it can supply to.

  In the hanger 28 of the front yarn hook 24 and the hanger 29 of the rear yarn hook 25, base portions 28a and 29a each having a substantially T shape on the upper end side are fixed to the upper support 31. It is engaged and held by support guides 37a and 37b such as linear guides, and is held so as to be slidable in the opposing direction (the longitudinal direction of the knitting machine) while maintaining a fixed posture as shown in the figure. The front and rear hangers 28 and 29 are provided with driving means 40a and 40b for moving the hangers 28 and 29, respectively. In FIG. 6, reference numeral 38b denotes a pressing member for the support guide 37b, and 39b denotes a guide rail.

  In the case of the illustrated embodiment, the drive means 40a, 40b are extended to the hanger moving drive shafts 41a, 41b extending in the knitting machine width direction and supported rotatably by the support members 45a, 45b. , 42b are provided, and eccentric levers 43a, 43b that are reciprocally displaced in one direction by an eccentric movement by the eccentric mechanism are provided, and the other ends of the eccentric levers 43a, 43b are connected to the hanger 28, 29 is rotatably connected by connecting pins 44a and 44b, and as the eccentric levers 43a and 43b are displaced by the drive shafts 41a and 41b, the hangers 28 and 29 are separated from each other and linearly approached. At the same time, the front and rear yarn hooks 24 and 25 held by the hangers 28 and 29 are also moved. Spacing the both locations yarn reed 24, 25 is configured to be changed.

  A means for rotating the drive shafts 15a, 15b for moving the needle hooks 2a, 2b and the drive shafts 41a, 41b for moving the ground yarn cages 24, 25 will be described with reference to FIGS. To do.

  The ends of the front and rear drive shafts 15a and 15b for moving the needle hook are projected outside the frame 50 on the side of the knitting machine, and are close to the respective projections of the front and rear drive shafts 15a and 15b. Worms 52a and 52b having axial centers in the longitudinal direction of the knitting machine are respectively supported on support metals 51a and 51b fixed to the frame 50 on the side, and the front and rear worms 52a and 52b are connected to the ends of the drive shafts 15a and 15b. Is engaged with worm wheels 53a and 53b provided on the front side. The front and rear worms 52a and 52b are connected to each other via a connecting shaft 54 so as to rotate synchronously, and a handle 56 is connected to one worm 52b via a shaft 55.

  With the above configuration, by rotating the handle 56, one worm 52b is rotated, and the other worm 52a connected to the worm 52b is also rotated at the same time. As the worm wheels 53a and 53b on the drive shafts 15a and 15b rotate, the drive shafts 15a and 15b rotate at the same time, and the distance between the front and rear needle hooks 2a and 2b is changed as described above. Adjusted.

  Further, the ends of the front and rear drive shafts 41a and 41b for moving the hanger are projected outside the frame 50 at positions above the drive shafts 15a and 15b, and the projecting portions of the front and rear drive shafts 41a and 41b are respectively projected. In close proximity, worms 62a and 62b having axial centers in the longitudinal direction of the knitting machine are respectively supported on support metals 61a and 61b fixed to the frame 50 on the upper side, and the front and rear worms 62a and 62b are connected to the both drive shafts. The worm wheels 63a and 63b provided at the ends of 41a and 41b are engaged with each other, and the front and rear worms 62a and 62b are connected to each other via a connecting shaft 64 in the longitudinal direction of the knitting machine so as to rotate synchronously. Then, timing pulleys 67 and 57 are provided on the upper connecting shaft 64 and the lower connecting shaft 54, respectively, and a timing belt 58 is hung on both timing pulleys 67 and 57 so as to transmit the rotation. .

  As a result, if the connecting shaft 54 on the drive shafts 15a, 15b side rotates, the connecting shaft 64 on the upper drive shafts 41a, 41b also rotates in conjunction with this, and the front and rear worms 62a, The front and rear drive shafts 41a and 41b rotate simultaneously with the rotation of 62b, and this rotation causes the front and rear ground yarn cages 24 and 25 to move linearly in the directions approaching and separating from each other as described above. The front and back ground yarn crease intervals are changed and set.

  In addition, although it is possible to implement the configuration so that the needle hook interval and the ground yarn hook interval can be individually changed and adjusted, in practice, as described above, the interval between the two can be adjusted at the same time. It is desirable to implement.

  In the above-described embodiment, the case has been shown in which the needle hook and the ground thread rod are manually moved by the rotation of the handle 56 to adjust the interval. In addition, the drive shaft 15a for moving the needle hook, It is also possible to operate by rotating the driving shafts 41a and 41b for moving the hanger 15b by a motor or other means. Further, the hanger 28 and 29 for supporting the needle hook moving support metals 7a and 7b or the ground yarn hooks 24 and 25 are directly moved by the advancing / retreating drive means such as a linear motor without using the eccentric mechanism. It can also be implemented.

  According to the present invention, in a double raschel machine having two rows of knitting needles in the front and back, according to the change in the thickness of the fabric to be knitted, the spacing of the needle hooks is changed together with the spacing of the front and back knitting needle rows facing each other. It can be suitably used when changing the interval, and in particular, the cam portion of the knitting machine spindle can be suitably used for both open type and oil bath models.

1 is a side sectional view showing an outline of a double raschel machine according to one embodiment of the present invention. It is an enlarged view of the principal part same as the above. It is a partial expanded sectional view which shows the part of the drive means of the support metal for a needle hook movement. It is a top view of the support metal part for needle hook movement. It is sectional drawing of the part of the VV line of FIG. It is sectional drawing of the VI-VI line of FIG. It is a side view of the rotation transmission part for change operation of a knitting machine side part. It is a front view from the X direction same as the above.

Explanation of symbols

1a, 1b Front and rear knitting needle rows 2a, 2b Front and rear needle hooks 3a, 3b Front and rear stitch combs 3a1, 3b1 Stitch comb bars 4a, 4b Front and rear intermediate frames 6 Base 7a, 7b Support metal 9a, 9b Driving means 10a, 10b Bearing shafts 11a, 11b Needle bars 12a, 12b Holding portions 13a, 13b Driving arms 14a, 14b Holding members 15a, 15b Driving shafts 16a, 16b Eccentric mechanisms 17a, 17b Eccentric levers 18a, 18b Connecting pins 19a, 19b Supporting shafts 20a, 20b Drive arm 21a, 21b Connecting rod 22a, 22b Rod 23a, 23b Cross joint 24 Front yarn hook 25 Rear yarn hook 26 Link yarn rod 28 Front yarn hook hanger 29 Rear ground Thread hanger 28a, 29a Part 30 Linking thread hanger 31 Support body 32 Mounting member 33 Support shaft 34 Arm member 35 Connection rod 37a, 37b Support guide 40a, 40b Drive means 41a, 41b Drive shaft 42a, 42b Eccentric mechanism 43a, 43b Eccentric lever 44a, 44b connection pin 45a, 45b support member 50 frame 51a, 51b support metal 52a, 52b worm 53a, 53b worm wheel 54 connection shaft 56 handle 58 timing belt 61a, 61b support metal 62a, 62b worm 63a, 63b worm wheel 64 connection shaft 67 , 57 Timing pulley 80a, 80b Support guide part 81a, 81b Receiving member 80a, 80b Holding member 80a, 80b Guide rail

Claims (4)

Two front and rear knitting needle rows, front and rear needle hooks attached to the both knitting needle rows, front and rear intermediate frames for holding the front and rear knitting needle rows and the needle hook, respectively, and a front yarn hook In a double raschel machine comprising a ground yarn heel and a pile yarn heel,
Front and rear support metals for supporting the front and rear needle hooks to move apart in the proximity direction together with the knitting needle row are provided so as to be linearly movable in the separation and proximity direction, and the front and back ground yarn hooks are respectively provided. The supporting hangers are spaced apart from each other and are provided so as to be linearly movable in the proximity direction, provided with driving means for moving the supporting metal and the hangers, respectively, by the movement of the supporting metal and the hangers by the operation of the driving means. In addition, the distance between the front and rear needle hooks can be changed together with the knitting needle row, and the distance between the front and rear yarn hooks can be changed. Spacing change device between the ridges.   2. The distance between the needle hooks and the ground yarn hooks in the double raschel machine according to claim 1, wherein the distance between the front and rear needle hooks and the distance between the front and rear yarn hooks can be changed simultaneously. Change device.   The needle hook in the double raschel machine according to claim 1 or 2, wherein the driving means for moving the support metal of the needle hook and the hanger of the ground yarn hook comprises an eccentric mechanism respectively provided on the driving shaft for movement. A device for changing the distance between the yarns and the yarn rivets. The drive means for moving the support metal of the needle hook and the hanger of the ground yarn hook is configured to be interlocked by a rotation transmission means including a timing belt. A device for changing the spacing between the needle hooks and the yarn thread ridges in a double raschel machine.

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