JPH0343273Y2 - - Google Patents

Description

[Detailed Description of the Invention] "Industrial Application Field" The present invention relates to an electromagnetic needle selection finger for a circular knitting machine.

``Prior art'' In a sock knitting machine, which is a type of circular knitting machine, a U-shaped yoke is integrally fixed to the base of each selector finger installed in multiple stages as an electromagnetic needle selection device for patterning. A permanent magnet is attached to the permanent magnet, and an electromagnet is provided close to the permanent magnet, and a desired electromagnet is excited by a pattern output signal, and its polarity is changed to attract or repel the permanent magnet of the selector finger. The pattern is created by turning the selector finger on or off.

"Problem that the invention aims to solve" Because the selector finger, U-shaped yoke, and permanent magnet are fixed together, the magnetic force of the permanent magnet is dispersed, and the attraction and repulsion to the electromagnet are weakened, causing the electromagnet to instantly When magnetizing or demagnetizing, the operation becomes sluggish and cannot cope with the faster pattern setting operation, which tends to cause pattern deviation and lacks stability.

"Means for Solving the Problem" By fitting the rear part of the selector finger into a U-shaped non-magnetic material, and fixing the non-magnetic material by sandwiching the permanent magnet and the non-magnetic material between a pair of yokes, magnetic force is applied to the selector finger. The yoke is positioned within the field of the electromagnet, and the magnetism of the electromagnet is converted by the pattern signal converted into an instantaneous current to accurately and quickly attract or repel the permanent magnet, allowing the selector finger to operate. The purpose is to stabilize the pattern and produce patterns at high speed.

``Operation'' The electromagnet is excited or demagnetized by the patterning signal converted into an instantaneous current, and when the polarity of the electromagnet is changed by changing the direction of the current, the permanent magnet attracts or repels and is fixed between non-magnetic materials. The selector finger swings, and the selector finger is fixed diagonally upward so that the pin of the handle drum is pressed into action, and it is fixed diagonally downward so that the selector finger does not come into contact with the pin, making it inactive. That's what I do.

``Example'' An example of the present invention will be described with reference to the drawings.The tip of the plate is cut diagonally to form a pressing surface 1a into which a pin loaded in the handle drum is pushed, and is supported on the rear side. The portions 1b, 1b are provided protrudingly, and a through hole 1c is provided at the rear end, and a meat stealing hole 1d is provided in the center portion.
1d to form the selector finger 1. A through hole 2a and a screw hole 2d are bored at the ends of a pair of upper and lower yokes 2, 2 made of rectangular plates, and a selector
Through holes 3a, 3a communicating with the through hole 1c of the finger 1 and the through hole 2a of the yoke 2 are bored in the open leg of the U-shaped non-magnetic body 3, and the permanent magnet 4 and the non-magnetic body 3 are connected to the yoke 2, The permanent magnet 4 and the selector finger 1 are inserted between the yokes 2 and 2 by inserting the screws 5 into the through holes 1c and 2a, the screw hole 2b, and the through hole 3a which are sandwiched between the yokes 2 and 2 and communicate with each other.
An electromagnetic needle selection finger is formed by fixing a non-magnetic material 3 integral with the needle.

``Effect of the invention'' This invention is constructed in this way, so the permanent magnet 4
Since the magnetic force is not conducted to the selector finger 1, the magnetic force is not dispersed, and therefore the magnetic force of the permanent magnet 4 is not weakened. Therefore, when the electromagnet is excited, if the polarities of both sides are different, they will quickly attract each other and the polarity will be the same. Since the needles quickly repel each other, the movement of the fingers is extremely accurate and quick, and when knitting at high speed, the pattern can be reliably set without causing pattern errors.

As described above, the present invention is a useful device that is simple in structure, easy to manufacture, and reliable in operation.

[Brief explanation of the drawing]

FIG. 1 is a partially sectional front view showing an embodiment of the present invention, and FIG. 2 is a plan view thereof. 1...Selector finger, 1c, 2a, 3a
...Through hole, 2...Yoke, 2b...Screw hole, 3...
...Nonmagnetic material, 4...Permanent magnet, 5...Bis.

Claims (1)

[Scope of utility model registration request] An electromagnetic needle selection finger for a circular knitting machine, in which the rear part of the selector finger is fitted into a U-shaped non-magnetic body, and the permanent magnet and the non-magnetic body are sandwiched and fixed between a pair of yokes.