JPS6017147A - Fluid change-over apparatus in fluid jet type loom - 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 TECHNICAL FIELD The present invention relates to a fluid switching device for a fluid jet loom.

BACKGROUND OF THE INVENTION In recent years, with the trend toward higher speed weaving machines, fluid jet looms have been increasingly used. In such an A3 loom, it is important to control the flow of fluid flowing through the main weft insertion nozzle or the auxiliary nozzle that assists the flight of the weft ejected from the nozzle into the warp opening. This control is performed by controlling the opening and closing operations of valves that open and close fluid passages from the fluid supply source to each of the nails. Conventionally, the opening and closing operations of valves were performed by obtaining power from the drive source of the loom via mechanical means (such as fI wheel mechanism or cam mechanism).However, when using this control method, the weaving conditions For example, changing the fluid injection start and stop +1i'H in response to a change in the weave width, etc., becomes extremely troublesome.

Therefore, a method using an electromagnetic valve mechanism that uses an electromagnetic solenoid to open and close the valve may be considered. According to this control method, changes in the start and stop of fluid injection are made in accordance with the bending history of the start and stop of energization of the electromagnetic solenoid, so controlling the fluid injection is as easy as non-j:i. It will be held on. In addition, the electromagnetic valve mechanism (1) means that it can cope with various types of automation. When the solenoid 2 in the body 1 is energized and the plungers 1 to 3 are attracted to the core 4, the plunger pin 3a pushes up the valve 7 against the spring 6 in the housing j5, as shown in FIG. The fluid passage is opened.Then, the fluid flows from the input 5a to the output D5II as indicated by the arrow in the figure.When the solenoid 2 is demagnetized, the valve 7 is connected to the spring 6 to is then pushed upward, closing the fluid passageway.

This (smell of generations) is very good for excitation and demagnetization of solenoid 2.
', the hair 73 hits = 114), and the solenoid side The structure is complex and prone to damage and wear.

However, fluid injection type weaving (control of fluid injection in d3)
If the solenoid valve mechanism with the conventional configuration is used in a machine (needing to open and close the valve approximately 500 to 1000 times per minute), the solenoid side will be damaged and deteriorated in a short period of time. It becomes impossible to use C between i.

Further, as the solenoid 2 is demagnetized, the valve 7 returns to the state of closing the fluid passage, but this return operation is performed by the spring 6.
Since this is carried out by the loom, the responsiveness is poor and there is a possibility that it may not be possible to follow the high-speed operation of the fluid jet loom.

Therefore, the solenoid side is a type 0/1 type electromagnetic valve (C1) that can withstand many high-speed operations and actively opens and closes the fluid passage of the valve.
j4 is seen. In this case, the wear caused by the collision between the valve and the housing due to the aggressive high-speed operation of the valve affects the opposing valve mechanism. That is, wear at the ridge between the housing and the valve impairs proper control of fluid injection.

Purpose The present invention has been made to solve the above-mentioned problems (b).The purpose of the present invention is to provide a fluid injection type loom that can follow the motion of high-speed weaving and has excellent air opening. Fluid cut 1g!
) 1;? In order to achieve the above object, the present invention disposes a pair of solenoids facing each other in series, and moves by the action of magnetism.
A moving member is disposed between both solenoids, and the movable member, which moves linearly back and forth under the action of magnetism generated in both solenoids, and a valve for opening and closing a fluid passage are connected by a buffer means. It is taken.

Embodiment 1 Below, an embodiment in which wood 5E light is integrated will be explained based on FIGS. The weft yarn Y is ejected via the gripper 30 which is opened by the gripper 30, and is caught in the fluid jetted from the main nozzle 31 for weft insertion. 33 and 34, and is assisted in flying by the jetting fluid from the auxiliary nozzle 35, which is installed facing the weft guide 34.

The fluid injected from the main nozzle 31 is supplied from the first air tank 36 via the fluid switching device 37, and the fluid injected from the auxiliary nozzle 35 is supplied to the second air tank 38.
The fluid is supplied from the fluid via fluid switching devices 39 (only two are shown in FIG. 3, and the others are omitted). The fluid switching device 37 opens and closes the fluid passage in synchronization with the weft insertion timing, and the fluid switching device 39 opens and closes the fluid passage sequentially from the tightening side to the anti-weft insertion side at the same time as the weft Y flight timing. 1゛ruJ, the sea urchin is turning.

Each fluid cut J! ill! Since both the ages 37 and 39 have the same structure, the fluid switching device 37 for the main nozzle 31 will be described next.

A pair of solenoids 10 and 1.1 are arranged facing each other in series in the container 9, and between the two solenoids 10 and 11, a magnet 1-12 is supported by bearings 13 and 14 so as to be slidable in the 1-1 direction. His head is tied to Shirreff 1-15. Both solenoids 10°11 are electrically connected by the same winding wire, but since the winding directions of each solenoid 10.11 are set opposite to each other, both solenoids 10°11 When energized, the same magnetic poles are generated on the opposite sides of both solenoids io, i, ``+''.

A housing '16 is fixed to the lower end of the housing (A9), and a valve 17 is housed in the housing 16 so as to be slidable in the same direction as the shaft 15. ~15 weighted guide fi)
The valve 17 is slidably fitted into the valve 18.
A spring is interposed between the shaft 11 and the shaft 15. Both ends of the same spring are 1 ~
15 and valve '17. The panoreb 17 is restricted from moving upward by a stopper portion 20a of the cover 20.

Now, as shown in Figure 6(a), the negative voltage (-Vl)
is being applied to the solenoid 10, 11, and as shown in FIG. 4, the valve 12 is suctioned and held on the solenoid 10 side, and the valve 17 closes the fluid passage. At the rotation angle θ1 of the loom, the negative voltage (-Vl) changes to the positive voltage ("-+-
V2), the magnetic poles on the opposite side of each solenoid 10 and 11 are reversed, and the magnet 12 is switched to the solenoid 1.
While it is repelled from the 0 side, it is also attracted to the solenoid 11 side. Therefore, the magnets 1 to 12 move toward the solenoid 11 as shown in FIG. 5, and the pulse 117 opens the fluid passage while being in contact with the stopper portion 20a. In this case, the collision of the valve 17 with the stopper portion 20a is alleviated by the buffering effect of the spring 19.

As a result of the fluid passage in the housing 16 being opened, the fluid supplied from the first air tank 36 reaches the input port 1 with a slight delay of the rotation angle θ1J of the loom as shown in FIG. 6(b).
6a side to the output port 161) side, and is injected from the weft insertion main nozzle 31. The positive voltage (+V
2 > is switched to a positive voltage (10 V1) for the magnet-12 suction retainer 4 at the rotation angle θ2 of the loom, and this positive voltage (+V1) application continues until the rotation angle θ3 of the loom.

During this time, the magnet 12 is attracted and held on the solenoid 11 side, and the fluid passage is kept open.

When the rotation angle θ3 of the loom is changed from (i[voltage (10\/1) to negative voltage (-V 2 >), both solenoids 10.
The magnetic poles on the opposite side of magnet 11 are reversed, and the magnet 12 is reflected from the solenoid 10 side and is attracted to the solenoid 10 side. Therefore, the magnet 12 (moves toward the solenoid 1o) and the valve 17 closes the fluid passage. In this case, the collision of the valve 17 against the housing 16a is alleviated by the buffering effect 42 of the spring 19, and the valve 17 closes the fluid passage.
And wear on the protrusion of the housing 16 is prevented.

With the opening of the fluid passage, the supply of fluid is stopped slightly later than the rotation angle θ3 of the loom, as shown in FIG.
l qi+ is stopped. The negative voltage (-V2) is as follows:
At rotation angle θ4 of the cap, the voltage is switched to 9 voltage (-Vl) for attracting and holding the magnet 12, the magnet 12 is attracted and held to the solenoid 1o side, and the fluid passage is held in an open state.

Then, the subsequent fluid jetting from the men's wear main nozzle 31 is controlled in the same manner as described above.

In this embodiment, the structure on the solenoid side is simpler than that of the conventional structure, there are fewer vibrating parts, and there is no collision part at all. Also, valve 17 and housing 1G
The collision with the spring 19 is alleviated by the buffering effect of the spring 19. Therefore, wear and tear on the solenoid side and the valve side are effectively prevented, and the fluid switching device U of the present invention can sufficiently withstand long-term use due to high-speed operation and long-term use. be.

It is desirable that the housing 16 and the valve 17 be made of a material with excellent self-lubricating properties and wear resistance. For example, the housing 16 may be made of copper or stainless steel, and the valve 17 may be made of polyimide (J resin on H resin). Possible combinations.

In addition, since the fluid passage opening/closing operation of the valve 17 is performed in a -C top polar manner based on the magnetic pole reversal of the solenoids io and ii, the response is very good, and the high-speed operation of the fluid jet 04 type fabric 1; 1′]- can also be tracked sufficiently.

The d3 wood wear is not limited to the above embodiment, but as shown in FIG. 17a and 18a are provided, and both spring receiving parts 17a.

A spring 21 for opening the flow passage may be interposed between the valve 188, or the shirt I 15 and the valve 17 may be connected by rubber instead of a spring. Ayabe effect is reduced by 1 Shina. In addition, in the present invention, the solenoids 10 and 11 may be inserted into the solenoids 10 and 11 without contact with the magnets 1 to 12, or a magnetic material may be used in place of the magnets 1 to 12, and the solenoids 10 and 11 may be connected to each other. Excite bJ: Yes. In addition, in place of the stopper part 2Qa, the amount of movement of the valve 17 can be adjusted by using a lock nut and a lock nut. Adjust to the minimum movement amount of the valve to obtain 1 point (10-J
By doing so, the lifespan of C'ff5 and valve 17 can be extended.

In addition, in the above embodiment (also in the 3L fluid passage open range), 0 electric current L[(-Vl) for magnet attraction was applied to the solenoid 10.11, but the fluid pressure J is Since the passage can be kept open, the voltage for attracting and holding the magnetic screw 1 can be omitted when the fluid passage is open.

More details on effects)'1. As mentioned above, the present invention arranges a pair of solenoids facing each other in series, and arranges a magnetic body to the magnet 1 or between the two solenoids, so as to open the fluid passage between the magnet 1 and the magnetic body. Since the valve is connected to the valve by a buffer means, the opening and closing of the fluid passage of the valve are performed actively, resulting in good responsiveness and high durability. This can be explained by the fact that it is useful in industrial applications as a fluid switching device.

[Brief explanation of the drawing]

Figure 1 is a vertical sectional view of a conventional electromagnetic valve (14); Figure 2 is a vertical sectional view showing the operating state of the same mechanism;
The figure shows an embodiment of the present invention in a Q-type configuration, FIG. 3 is a perspective view of the main part showing the passage system for the ejected fluid, and FIG. 4 shows the fluid passage opened in the fluid switching device. 5 is a vertical sectional view showing the open state of the fluid passage, and FIG.
) is a graph showing the applied voltage, FIG. 1 (1) is a graph showing the state for fluid jetting, and FIG. 7 is a longitudinal sectional view showing the separate structure of the present invention. Solenoids 10, 11, magnets 1 to 12, valve 1
7, Spring 19, Fluid switching device 37, 39゜Patent 1ffi Legal company Toyoda Automatic Loom Works representative
JJl Patent Attorney On 1) Fuxin Figure 1 M2 Figure 6 (a) (b) e+ e2 03 θ4 360'' Figure 7

Claims (1)

[Claims] 1.? M, (This is an electromagnetic valve interposed between a 4V source and an injection part, in which -, Q = I solenoids are arranged facing each other in series, and a movable member that is interlocked with magnetic action is connected between both solenoids. A valve for opening and closing a 1 m path of fluid between the movable member, which receives the action of magnetism generated in both solenoids and moves in a reciprocating linear manner at 1.1, is used as a buffer means.
A fluid switching device for a fluid injection type loom, characterized in that the two are connected to each other. 2. The movable member is a magnet or a magnetic material C. The fluid injection type fabric (flow 1 ho switching device in d3) according to claim 1, wherein the movable member is a magnet or a magnetic material C. Shirt 1~
The fluid switching device in a fluid injection type loom according to claim 21B, which is a spring or rubber that connects the magnets 1 to 2.