JPH0324617Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a stitch amount adjusting device for stitch cams in a horizontal stockinette knitting machine.

(Prior Art) A device for adjusting the amount of stitching of a stitch using the stepping function of a step motor, which uses a pinion and two racks, has already been disclosed in Japanese Patent Application Laid-open No. 16499/1983.

(Problems to be Solved by the Invention) The above conventional means engages a pinion driven by a step motor with two racks whose tips intersect in a chevron shape at the intersection. The lower part of the rack is placed opposite to the stop of the tension bolt, and both racks are moved in opposite directions by the rotation of the pinion, so that one tension bolt is placed in the upper rest position and the other gear is moved downward symmetrically. The step position is set to the operating position, and the step position is adjusted by the step amount of the step motor.

However, in this mechanism, the two racks are necessarily located at the top of the needle bed, and when operating, they must be moved and protruded further upwards from this position. When targeting a knitting machine, the above-mentioned racks are installed on the main plate of the knitting carriage, and the width of the main plate of the carriage must be expanded upward in order to prevent the racks on opposing carriages from colliding with each other. It takes
This was extremely difficult in terms of designing the arrangement of other various equipment, and in terms of implementation, there were many difficulties as it required a change in the design of the knitting machine itself.

(Means for Solving the Problems) In view of the above, the present invention eliminates the need to expand the range of motion by using two straight rod-type racks, and accurately adjusts the stitching amount of the joints by operating within a small range. This is a device with a pair of left and right dowels arranged in an eight-shape shape that move up and down according to the guide holes formed in the main plate of the organizing carriage. A spring is applied to always urge the dowel above the inoperative position, a pinion driven by a step motor is provided between the dowels, and a pair of controls each having a fan-shaped tooth piece and a support lever on both sides. The member is rotatably supported on a shaft, each fan-shaped tooth piece is symmetrically engaged with a pinion, and each support lever is used to lock the movable pieces on both sides against a spring with the upper limit position set at the upper limit position. The control member is characterized in that both control members are stopped from rotating in opposite directions depending on the amount of drive of the pinion.

(Function) In the device of the present invention, as shown in FIG.
For example, in the left direction as shown in the figure, based on the state in which the movable piece 4 is locked at the rest position by supporting the locking part 4a formed by the convex part or the concave part of the movable piece 4 with the protrusion 9a at the tip of the support lever 9 shown in FIG. When the pinion 7 is driven in the direction of the arrow by a command signal to the step motor 6, the sector teeth 8, 8 on both sides rotate clockwise, and at this time, the projection 9a of the left support lever 9 rotates clockwise. moves away from the locking part 4a, but the projection 9a of the right support lever 9 pushes the locking part 10a downward and moves the movable piece 4 downward, causing the thread 3 integrated therewith to perform the stitching operation. position in the direction. Therefore, the step operating position due to the downward movement is selected by the number of step commands to the step motor 6, so the right-hand step 3 can be regulated to a predetermined step position by the command signal to the motor 6, and the left-hand step 3 can be regulated to a predetermined step position by the command signal to the motor 6. The dowel 3 maintains the rest position from beginning to end, and when knitting to the right, the movement is the opposite of the above, and the dowel 3 on the right
The lower movement of the needle is restricted to a predetermined stitch position.

(Example) Embodiments of the present invention will be described with reference to the drawings.

Reference numeral 1 denotes the main plate of the carriage for organization, and a pair of left and right guide holes 2, 2 are provided on this plate facing each other in an eight-shape pattern, and a part of the movable piece 4, which is integrated with the dowel 3, is moved up and down into each guide hole 2. Attach the movable pieces 4 on both sides as shown.
A traction spring 5 is applied to each of the traction springs 5 to constantly urge the dowel 3 integral with the movable piece 4 upward, and the upward movement position is the rest position of the dowel 3.

A pinion 7 is provided between the movable pieces 4 on both sides and driven by a step motor 6, and control members 10 and 10 each having a fan-shaped tooth piece 8 and a support lever 9 on both sides are rotatably symmetrical. The fan-shaped tooth pieces 9, 9 are engaged with the pinion 7 at symmetrical positions, and the protrusion 9 at the tip of the support lever 9
a were respectively locked to locking portions 4a formed at one ends of recesses formed in the movable piece 4. In addition, the locking portion 4a
may be composed of a projecting pin implanted in the movable piece 4.
Further, in the illustrated example, the fan-shaped tooth piece 8 is shown attached to the disc 10a of the control member 10, but the disc 10
a may be directly replaced with the fan-shaped tooth piece 8.

Reference numeral 11 denotes a micro switch provided below each of the moving pieces 4 on both sides, which detects when the moving piece 4 moves downward beyond the allowable range when the step motor 3 is being driven, and stops the motor 6. It is something.

(Effects of the invention) According to the invention, a drive pinion and a fan-shaped tooth piece that engages with the drive pinion are provided at an intermediate position between the moving pieces on both sides that are integral with each gear, and a support lever that rotates together with the fan-shaped tooth piece is provided. By moving the movable piece downward against a spring, the operating position of one of the steps is set, and the operation is performed by a rotation mechanism, and the range of movement is within the space where both movable pieces face each other. Therefore, there is an effect that the operation can be performed accurately without causing any hindrance to the installation of other operating mechanisms.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention; FIG. 1 is a front view with a portion cut away, FIG. 2 is a plan view, and FIG. 3 is a side view. 1...Main plate, 2...Guide hole, 3...Douyama, 4...
...Moving plate, 5... Spring, 6... Step motor,
7...Pinion, 8...Sector tooth piece, 9...Support lever, 10...Control member.

Claims (1)

[Scope of utility model registration request] A pair of right and left grips 3, 3 that move up and down respectively according to the guide hole 2 formed in the main plate 1 of the organizing carriage are arranged in an eight-shape, and a spring 5 is attached to the movable piece 4 integral with each rod 3. A pinion 7 driven by a step motor 6 is provided between the moving pieces 4 and 4 on both sides, and a fan-shaped tooth piece 8 and a support are provided on both sides of the pinion 7, which is driven by a step motor 6. Lever 9
A pair of control members 10 are rotatably supported, and each fan-shaped tooth piece 8, 8 is symmetrically engaged with the pinion 7, and each support lever 9, 9 is supported by the movable piece 4 on both sides. The stitches in a horizontal stockinette knitting machine are configured such that the stitches 4 are locked at the upper limit position against a spring 5, and both control members 10 are stopped rotating in mutually opposite directions by the amount of drive of the pinion 7. Stitch amount adjustment device.