JPS6071731A - Pressure needle controller of dobby machine - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a device for selectively driving a pressure needle in a P-beam mIa opening device.

The first side shows the opening structure of the heald frame, which is often used in conventional dobby looms, and as is well known, when the hook (1) is caught on the knife (2), the heald frame (3) is lifted up. ,
A space is created between the healds (3') of the heald frame that cannot be lifted and the warp threads passed through, and an opening is created. Like this /79ri(
A program must be created in advance to select whether or not to hook the item 1) to the knife (2). Therefore, before starting the weaving work, the following steps are required as a preparatory step until the completion of the four grams.

1) Organizational design → 2) Organizational chart creation → 3) Crest chart creation → 4) Card creation There are many types of card creation methods for 4) above, but the relatively new ones ＼Most of them are shown in Figure 2. There is a resin film with through holes (4) as shown in the figure. (Hereinafter referred to as Pe-Zo-Film.) This Pe/R-Film (5)
At the position where the heald frame (3) is lifted, a through hole (4) is made corresponding to the position of the frame, and at the position where the frame is lowered, no through hole is made. The heald frame (3) is moved up and down according to pre-programmed data from the bevel film (5), and the fabric is woven.

FIG. 3 shows a mechanism for detecting the presence or absence of through holes according to the data of the paper film (5). In the figure (6a) (6b) (
6c) (6a) is Feeler Needed Nope (7a) (7b
) (7c) (7d) is pressure need AI-Q.

All four feelers (6a) to (6d) are lifted up and the film (5) is opened through the hole (4).
When the cylinder shaft (8) comes out of the shaft (8), the cylinder shaft (8) rotates by a predetermined angle, that is, the angle corresponding to the Demevich (A) provided on the paper film (5), and the Sujirocket (9) installed on the shaft (8) rotates. ) are also linked.

Since the hook of the stripping rocket (9) is engaged with the feed pitch hole (10) of the peno-e film (5), the paper/a film (5) is moved by the arrow Y by one film pitch.
sent in the direction. Next, the pressure needle (7a) ~
Of (7d), (7a) and (7b) descend at the same time,
If there is a through hole (4) on the paper film (5), the feeler 121 dollars (6a) (6b) will descend deeply and open the through hole (4).
) is not placed, the peno will stop on the surface of the film (5).

The lower pressure needles (7a) and (7c) are used to capture the past data that is required when the loom is reversed. Normally, when the weaving trough is moving forward, the upper pressure needles (7b) ) (7d) becomes effective, and the data of feeler knee P (sa) (6c) which is linked with pressure knee) and z (7a) (7c) is ignored.

When the pressure needle (7b) descends, the feeler needle /I/(6b) detects the through hole (4) on the paper film (5), and when it descends deeply, the pressure needle (
7b) is the flat part (
12) and stop the descent. If there is no through hole (4) on the film (5), the pressure needle (7b) is set at a position above the convex portion (13) of the top pressure knife (11). (6
b) is stopped. The same goes for the lower pressure needle.

The Zetom Zoresher knife (14) installed under the top pressure knife (11) is connected to the pressure needle (
To press 7a), start moving in the direction of arrow X. If the pressure needle (7a) rests on the flat mos of the Ditom pressure knife (14), the convex part (16
) in the direction of arrow X. Next, the top pressure knife (11) is moved in the same way and pushed in the X direction,
Once the top pressure knife (11) has definitely stopped, the tom pressure knife (14) will begin to return to its original position, and when it has finished returning, the top pressure knife (
11) also returns to its original position.

In the dobby machine with the above mechanism, the weaving structure is
As shown in the figure, plain weave ((), satin weave thin (b), twill weave (c), plain weave (d), satin weave (e), satin weave thin (he), twill weave (g) and loopy If one minute becomes complicated, the time and cost required for the program will not only increase, but also
-Correcting the film is also a pain. Moreover, the length ranges from several meters to several tens of meters, which is undesirable because hooks and hooks cause problems in replacement management, etc.

SUMMARY OF THE INVENTION An object of the present invention is to eliminate the above-mentioned drawbacks without using a paper film and to provide a device that can control the pressure needle of a dobby machine with a simple mechanism.

Embodiments of the pressure needle control device according to the present invention will be described below with reference to FIGS. 5 to 7.

In the present invention, the filler is 121 dollars (30) (31
) (32) (33) have ferromagnetic material (34) (35
)(36)(37) and play accordingly)
A ferromagnetic material (AS) (39), (40), and (41) is installed on top of (46), which is formed by an electromagnet and can change the #;l polarity by changing the direction of the current. (B)
indicates its height.

$121 each (42) (43) (44)
(45) before lowering the non-magnetic material) (4
6) Excite each of the ferromagnetic bodies (38) to (41) above. In other words, in the part corresponding to the hole in the P-Z film, the magnetic pole surface (47) of the ferromagnetic material on the feeler needle side and the magnetic pole surface (48) of the ferromagnetic material on the plate (46) side are of the same polarity. In order to apply an excitation current to the ferromagnetic material on the plate (46) side, and to make the excitation current correspond to the part of the ferromagnetic material on the plate (46) side that does not have through-holes, An excitation current is passed through the ferromagnetic material on the plate (46) side so that the magnetic pole surface (48) has a different polarity from the magnetic pole surface (47) of the ferromagnetic material on the feeler needle side. Note that (63) is a top pressure knife, and (64) is a bottom pressure knife.

Figure 6 shows the ferromagnetic material (38) to (4) on the (46) side.
1) shows the magnetic pole conversion circuit diagram and assumes that the logic rep/I10 is applied to the S/G terminal (56) and the -transitor/I10 is also applied to the STB terminal (57). At this time, the transistor ( 51) and (54) are turned on, and transistors (52) and (53) are turned off, so the current flows as shown by the dotted line C55), and the upper side of the coil (58),
ferromagnetic pole face (48) on (46)
An S pole is formed on the lower side, and an N pole is formed on the lower side. Conversely, when logic level 1 is applied to the S/G terminal (56), the transistor (5
2) and (53) are ON, (51) and (54) are OFF
Therefore, the direction of the current is opposite to that of the current (55), and an N pole is formed on the upper side, and an S pole is formed on the lower side.

Therefore, it plays with the magnetic pole surface (47) of the ferromagnetic material (34) attached to the tip of the feeler knee (30) in Fig. 5).
(46) The magnetic pole face (48) of the ferromagnetic material (38) installed on
) controls the pressure needle by repelling or attracting it. In other words, if the magnetic pole faces (47) and (48) have the same polarity, they will repel each other, and the ferromagnetic material (
Since 38) is fixed to the play (46), the closer the magnetic pole face (47) on the feeler 121 dollar (3o), which is in a nearly free state, approaches the magnetic pole face (48), the more the repulsive force increases. The magnetic field becomes stronger and descends avoiding the strong magnetic field around the magnetic pole face (48). The feeler needle (30) descends in the same way as when there is a through hole on the film.
The excitation current to the ferromagnetic material (38) is the above-mentioned feeler 2-P.
The supply is stopped before the tube (3o) finishes descending. In addition, in order to cope with the case where there is no through hole on the Pξ-film, the magnetic pole faces (47) and (48) are excited so that they have different polarities.
The magnetic pole face (48) of the ferromagnetic body (34) at the tip of the feeler 121 dollar (3o) is placed on the magnetic pole face (48) of the ferromagnetic body (38) on the magnetic body (46). 47
) are overlapping securely.
4) will not fall any further.

When logic level 1 is applied to the STB terminal (57), the transistor (5o) is turned off and no current flows through the fill (58). Also, the coil glue -rt=+ is connected to the circuit through the electrical transmission line (49) shown in FIG.

FIG. 7 shows the time at which the weaving program reaches the control device;
y'otsuk diagram〒、First, weave organization program unit (58
), information on the weaving pattern, etc. is created by program operation, one is stored on a floppy disk (59) for playback, and the other is written in the data notebook (60) and can be controlled as is. Provide information to the device (61). It is processed within the control device (61) and sent as an instruction signal to the actuator (62).

As described above, in the present invention, there is no need to use P-1R-film, it is possible to improve weaving speed, and to improve problems such as failure due to breakage and space factor.
Another advantage is that it can be easily installed on conventional dobby machines.

[Brief explanation of the drawing]

Fig. 1 is a side view showing the heald frame operating line of a conventionally known dobby machine, Fig. 2 is a plan view of a part of the P.G. film, and Fig. 3 shows the information detection mechanism of the P.G. film. 4 is a weaving structure diagram, FIG. 5 is a perspective view showing an embodiment of the pressure needle control device for a dobby loom according to the present invention, and FIG. 6 is a circuit diagram of the current sent to the ferromagnetic material. FIG. 7 is a block diagram of the path of the woven structure. (30) (31) (32) (33)...Feeler needle, (34) (35) (36) (37)...Ferromagnetic material, (3B) (39) (40)' (41) ...Ferromagnetic material, (42) (43) (44) (45) ...Pressure needle, (46) ...Plate, (47)
(48)...Magnetic pole surface. Figure 1 Figure 2 Figure 3 ■ Figure 4

Claims (1)

[Claims] An electromagnetic device instructed by an electric signal extracted from data created and recorded to control the drive of the loom is attached to a part corresponding to each pressure needle in the P-oil unit. Pressure needle control device for dobby looms.