KR920007254Y1 - Unit for selecting the needles for knitting machines - Google Patents

Abstract

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Description

Needle Selection Unit for Knitting Machines

1 is a perspective view of a state in which the cover of the present invention is removed.

2 is a cross-sectional view taken along the line AA ′ of FIG. 1.

Figure 3a is a perspective view of the locking device used in the present invention.

3B is a side cross-sectional view of FIG. 3A.

4a is a front view of an electromagnet mounting stand.

4a is a structural diagram of an electromagnet.

5 is a front and a plan sectional view of the electromagnet support ring.

* Explanation of symbols for main parts of the drawings

1: Electromagnet needle selection unit 3: Working piece support

2: cover 4,4 ': operating piece

5: rotating shaft of the operating piece 6: electromagnet support

6 ': electromagnet support 7: electromagnet (top)

7 ': Electromagnet (bottom) 8, 8': Permanent magnet (top)

9: power connection plate 10: base

11: side plate 12: locking device shaft

12 ': locking device cable lever 13: locking device cable

14: Input terminal 15: Operation piece (finger) stopper

20: locking device 22: electromagnet support ring

22 ': Both ends screw 23: Working piece protrusion

80, 80 ': Permanent magnet (bottom)

The present invention relates to an electromagnet needle selection unit which moves to a predetermined position at a high speed to operate a needle needle mechanism, and more particularly, to a needle needle selection unit of a knitting machine pattern driven using magnetic force interaction between an electromagnet and a permanent magnet.

Various types of devices for driving various moving pieces by using the magnetic force of the electromagnet and the magnetic force of the permanent magnet have already been developed (for example, Japanese Utility Model Publication No. 57-133594). Its structure and principle is a driving device composed of a working piece with permanent magnets that can move between spaces separated from each other, and an electromagnet for moving the moving piece under the influence of the magnetic force generated by itself. Since the current flows through the coil to the electromagnet, a suction force is generated between the one pole of the electromagnet and the permanent magnet, and a repulsive magnet is generated between the one pole of the electromagnet and the permanent magnet to move the working piece to another position. do.

In addition, when current flows in the opposite direction to the coil of the electromagnet, the repulsive force is initially generated in the pole where the suction force is generated, and the suction force is generated in the generated pole.

However, the existing drive drive device using this principle is to speed up the moving piece to improve the operating speed of each moving piece itself in order to improve the work efficiency, and to drive the driving device to drive the multiple drive pieces in multiple stages. In view of the tendency, in order to increase the number of actuators and the number of actuators in parallel, the number of coils of the electromagnet increases and the heat generation amount increases.

Accordingly, the present invention effectively solves this drawback by arranging the structure of each operation piece and the installation structure of the electromagnets and arranging the operation piece stopper that can control the movement of the operation pieces (Fingers) during operation. And it is an object of the present invention to provide a needle selection unit for knitting machines having a separate locking device that can prevent movement due to malfunction of the operating piece when the work is completed.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

1 is a perspective view of the cover of the electromagnet needle selection unit of the present invention with the cover removed, provided with an electromagnet support 6, a work piece support 3, and a power supply connecting plate 9 on a general base 10; , The working piece support 3 has a plurality of working pieces 4 and 4 ', the electromagnet support 6 also has a plurality of electromagnets 7 at positions corresponding to the working piece 4, 4 and 4 ') The operating piece rotary shaft 5 installed in parallel with the corresponding groove of the operating piece support 3 by connecting the respective operating pieces 4 and 4' through the grooves formed at the upper right side. (3) located on the top surface. Therefore, when the operating pieces 4 and 4 'are operated, the operating piece 4 is rotated by a predetermined interval with the operating piece rotating shaft 5 as the axis. The operation descriptions of the operating piece rotating shaft 5 and the operating pieces 4 and 4 'will be described later in detail. On the other hand, the left and right both side tubes 11 of the cover 2 and the electromagnet support 6 are fixed and attached to the electromagnet support 6 by screws.

Referring to the configuration of the present invention on Fig. 1 and the operation description thereof according to Fig. 2, Fig. 2 is a cross-sectional view taken along the line AA 'of Fig. 1, the electromagnet 7 and the operation piece The structure of (4 and 4 ') is shown in detail.

The electromagnet needle selection unit 1 has an electromagnet support 6 and an actuating support 3 on the base 10 of a plane, and a plurality of actuating pieces 4 and 4 'are also provided on the actuating support 3. ) Is fixed by the operating shaft rotating shaft (5).

At this time, the electromagnets 7 and 7 'are alternately up and down, as can be seen from the front view of the electromagnet support 6 of FIG. 4, and the upper and lower ends of the left ends of the corresponding operating pieces 4 and 4'. The permanent magnets 8 and 8 ', 80 and 80' are also sequentially formed up and down, which is to install more working pieces 4 and 4 'in a narrow space.

Therefore, in the operation of the present invention, when a control signal is input to the input terminal 14 installed in the electromagnets 7 and 7 'to be operated, a signal flows through the coil to generate a magnetic force in the electromagnets 7 and 7'. 7 and 7 '), the suction force of the upper permanent magnet 8 or 8' of each of the working pieces 4 and 4 'having a pole opposite to that of the lower permanent magnet 80 or 80' with the same pole And a repulsion force is generated so that the operating pieces 4 and 4 'are rotated by a predetermined angle in the counterclockwise direction with respect to the operating piece rotating shaft 5 as the axis along the edge of the lower portion of the operating pieces 4 and 4'. The starting mechanism will rise and serve its purpose.

Then, when the operating pieces 4 and 4 'rotate the predetermined angle, when the signal flows in the opposite direction to the coil wound on the electromagnets 7 and 7', the pole of the electromagnet is changed, and the operating piece in which the suction force is generated initially. Repulsive force is generated with the upper permanent magnet in (4), and suction force is generated with the lower permanent magnet with repulsive force, and the working piece is returned to its original position. At this time, only a few nanoseconds (Nano Sec) can operate the operating piece at high speed, and the input terminals of the electromagnets 7 and 7 'installed corresponding to the operated working pieces 4 and 4' are controlled by the CPU. According to this, the inflow of the control signal is interrupted. The current flows into the electromagnet corresponding to the operation piece to be performed next by the computer program through the CPU connection socket 21, and the above process is repeated.

Referring to the operating piece stopper 15 and the locking device 20 used in the present invention, FIGS. 3a and 3b are the vertical movement of the electromagnet and the permanent permanent magnet up and down during rotation of the operating pieces 4 and 4 '. Locking cable connection lever (12 ') consisting of an operating piece stopper (15), locking device shaft (12), locking device cable connecting lever (12'), and cable (13) to prevent play and movement of the moving piece. And a locking device 20 composed of a cable 13 is shown. Although the stopper 15 is not shown in detail in FIG. 1, the moving pieces 4 and 4 'are replaced by electromagnets 7 and 7' and permanent magnets 8 and 8 ', 80 and 80 according to control signals from the CPU. Permanent magnets (8 and 8 ', 80 and 80) of the electromagnets and the operating pieces (4 and 4') when the upper and lower movements of the operating piece rotation axis (5) are limited to the predetermined angle due to the suction and repelling force of the '). ') Is installed in the longitudinal direction of each working piece through a groove formed on the top of the working pieces (4 and 4') to prevent contact between the '). At this time, the operating piece stopper 15 is made of a soft material such as urethane so that an impact is not applied to the operating pieces 4 and 4 '.

Also. As shown in FIGS. 2, 3a, and 3b, the locking device 20 moves the locking device cable lever 12 in the direction of the arrow as shown in FIG. 3a when the operation of the needle selection unit 1 is stopped. As shown in FIG. 3B, the locking cable 13 rotates about the lock shaft 12 and contacts the operating piece projection 23 on the lower left side of the operating pieces 4 and 4 '. Done. By doing so, it is possible to prevent the operation of the operating pieces 4 and 4 'caused by an electromagnet or other various malfunctions that occur when the use of the unit is not necessary. At this time, the locking device shaft 12 and the locking device cable 13 are in the installation direction of all the operating pieces so as to correspond to the projections 23 of the operating pieces 4 and 4 '.

Also, as can be seen in FIG. 1, electromagnets 7 and 7 composed of upper and lower upper and lower permanent magnets 8 and 8 ', 80 and 80' attached to the operating pieces 4 and 4 'of FIG. 3a. Corresponds to the Looking at the arrangement of the permanent magnets 8 and 8 ', 80 and 80' in detail, FIG. 4A is a front view of the electronic support 6 supporting the electromagnets 7 and 7 '. The electromagnet support 6 'is a configuration in which a lower electromagnet support is provided between the electromagnets configured at the upper end, and the plurality of electromagnets 7 and 7' are fixed with screws at both ends by the electromagnet support ring 22, respectively.

The configuration of the electromagnet support 6 'in this form is for effectively installing a relatively large number of electromagnets 6 and a plurality of operating plates 4 and 4' in a confined space, thereby making more of a single pin needle selection unit. The needle can be operated to lead to multiple stages and an increase in the number of actuators as described above.

Figure 4a shows the general structure of the electromagnets 7 and 7 'used in the present invention, a detailed description thereof will be omitted.

FIG. 5 is an electromagnet support ring 22 for fixing the electromagnets 7 and 7 'to the electromagnet support 6' of the electromagnet support 6. Looking at the recesses fixed to the both ends of the screw 22 ', There is a gap between the both ends of the screw 22 'installed in the electromagnet support 6 and the groove portion as much as a. This allows the electromagnet support ring 22 to be moved left and right and inserted into the circular portion. 7 and 7 ') and the permanent magnets 8 and 8', 80 and 80 'of the working piece 4 and the distance or centering.

As described above, the present invention can effectively install more moving pieces in a relatively narrow space as compared with the existing moving piece driving device, and can effectively control the operation of the moving pieces in the case of malfunction of the needle selection unit. Combining multiple moving pieces has the effect of improving work efficiency.

Claims (3)

In the upper and lower portions of the electromagnet support 6 installed on the base 10, a plurality of electromagnet supports 6 'are arranged in a row in the longitudinal direction of the support 6 at predetermined intervals, and inserted and fixed therein. A plurality of electromagnets 7 and 7 'and an operating piece rotating shaft 5 seated in a groove formed at the upper end of the operating piece support 3 are penetrated to correspond to each of the electromagnets 7 and 7'. Line needle for the knitting machine pattern which drives the working piece by alternately generating suction and repulsive force between an electromagnet which is composed of a plurality of working pieces 4 and 4 'and forms a magnetic force and a permanent magnet attached to the corresponding working piece. In the selection unit, the operating piece stopper 15 provided in the longitudinal direction on the rear end of the operating piece support 3 in a state of penetrating the groove formed at the upper end of each of the operating pieces 4 and 4 ', and the electromagnet Locking cabinet penetrated through the side plate 11 installed on both sides of the support (6) A lock connected to the shaft 12 and the locking device shaft 12 in a state corresponding to the lower portion of each of the operation pieces 4 and 4 'and capable of intermittent vertical movement by the locking device cable connecting lever 12'. A needle selection unit for a knitting machine, characterized in that it comprises a locking device (20) consisting of a device cable (13). According to claim 1, wherein each of the operating piece (4 and 4 ') interlocked with the upper, lower electromagnets (7 and 7') in the form of "a" so as to be able to rotate about the operating piece rotating shaft (5) It is configured, the front end is formed with an elliptical groove is formed so as to penetrate the operating piece stopper 15 to limit the movement play of the operating piece, the lower edge edge is formed to be curved and interlocked with the pin needle mechanism A needle selection unit for knitting machines. 3. A plurality of upper and lower electromagnets (7) according to claim 2, wherein each of the operating pieces (4 and 4 ') has a pair of upper and lower permanent magnets (8 and 8', 80 and 80 ') respectively in front of the front end portion. And 7 ') so as to be interlocked with each other in a corresponding position, and an operating piece protrusion 23 is formed on the bottom surface of the front end thereof and in contact with the locking device cable 13 operating according to the operation of the locking device 20. Needle selection unit for knitting machines.