JPS6121478A - Valve - 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 invention provides for connecting fluid supply and discharge conduits and for communicating with each other via passages provided in the casing and which can be closed with the aid of a valve disc. The present invention relates to a valve provided with a casing having:

The invention is intended to provide a valve of the above-mentioned type, which is made of a simple construction and a small number of parts, and in which the flow rate can be controlled in a simple manner.

According to the invention, this comprises arranging the valve disc in a chamber provided in the casing and closed by a cover and communicating with one of the connections, and communicating the other connection with a passage extending into the chamber. The valve disc is capable of reciprocating between a first position in which the valve disc is located with respect to the valve disc sea HC formed by one end of the extending passage and a second position in which the valve disc closes the passage formed in the cover. It can be achieved.

The use of the arrangement according to the invention makes it possible to construct the valve from three parts, such as a so-called casing, a valve disk and a cover, which can be made in a simple manner from any suitable plastics material.

In such an arrangement, the valve disc is provided with an extension that is guided in the passageway of the cover and projects from the cover, so that the movement of the valve disc can be controlled in a simple manner by means of an actuating member provided on the outside of the valve disc. can.

On the other hand, the cover can be constructed in such a way that the passage provided in the cover extends into a chamber formed in the cover and provided with a connection for connecting the fluid supply and discharge conduit.

At the same time, using the same casing and the same valve disc, the flow rate can be controlled differently than in the case of a valve with a cover, such that the extension joined to the valve disc projects outside the valve. You can create a valve to control it.

Another form of the invention includes an endless drive belt, a drive device for driving the drive belt, and a drive device for moving an article extending transversely to the length of the drive belt and supported by rollers during operation. The present invention relates to a compensator device that is provided with a roller that can be rotated with the aid of a part of a drive belt that is in contact with the roller.

In conveyor systems of this type, it is often necessary to cut off the drive of a number of rollers at certain points during operation, so that the articles placed on the rollers are no longer moved in the longitudinal direction of the conveyor system.

The invention is intended to provide a conveyor device of the above-mentioned type, in which the drive of at least some rollers located close to each other can be switched off at will.

According to the invention, this includes providing a displacement device which allows one end of at least some rollers located close to each other to be moved away from the drive belt such that the rollers are moved away from the belt. This can be achieved by

When such an arrangement is used, it is only necessary to locate the roller displacement device near the ends of the rollers to be moved, which are located close to each other, so that a conveyor device of simple construction can be achieved. .

The invention will now be described in detail with the aid of the accompanying drawings, in which embodiments of the arrangement according to the invention are illustrated.

A valve according to the invention is shown in FIGS.

Three connections made of plastic material.

3. 'I has a casing / provided with these connections; 2. ．． 7.4' has a longitudinal axis located in a plane extending diametrically through the longitudinal axis of the casing l of circular cross section and projects outwardly from the casing l. Connections λ located on the same line with each other.

DA is a passage S that intersects the vertical axis of the casing at right angles.
surrounds both ends of.

The bottom end of the circular passage 6 whose axis is concentric with the longitudinal axis of the casing l extends to the middle part of the passage j.

The top end of the passage 6 communicates with a chamber 7 formed at the top end of the casing l, the bottom of which extends around a collar extending coaxially around the longitudinal axis of the casing and projecting into the chamber. Extends coaxially.

A passage extending through connection 3? is connected to Murori.

In the first embodiment shown in Fig. 1, the chamber is closed by a cover 10, and this cover
A flange is provided which engages the outer periphery of the flange. Both inner walls of the flange // are provided with a protruding nose part /, 2, which engages in a corresponding groove formed on the outer circumference of the casing l, so that the cover IO is fixed to the casing / by snap-fastening. Ru. A passage /3 coaxial with the axis of passage B is provided in the cover 10.

A double conical valve disc/ll is also provided within the chamber. The valve disk /lI is provided with a guide pin /3 extending into the passage 6, and on the opposite side from the guide pin /3 a pin 16 forming a projection is provided and the cover IO
protrudes above the cover IO through the passageway /3.

In particular, as shown in FIG. 1, the cover 10 is provided with two protruding ears, and in the illustrated embodiment, a notch 7g having a rectangular cross section is formed. The figure-7-shaped support part l is placed in such a way that the flange of the T-shaped support part/ri rests on the top surface of the cover IO. is provided in one of the notches /S.

An L-shaped lever 20 is placed on the support/9.

One end of the leaf spring 21 is joined to the arm of the L-shaped lever 20 extending upwardly from the cover IO, and the other end of the leaf spring 21 is bent and removed from the cover IO to secure the lever 20 to the cover IO. The cover 10 is engaged with a portion of the cover 10 that protrudes in the opposite direction. Lever, 20, casing l
from the position shown in FIG. 1 against the spring force of spring 2/ around a pivot formed by a line perpendicular to the longitudinal axis of It can be rotated clockwise in the same figure.

As can be particularly seen from FIG. 1, at least the end of the horizontal arm of the lever 20 rests on the end of the pin projecting above the cover 10, so that the lever Pin protruding through clockwise rotation of 20/6.
Therefore, the valve disk 4 (see FIGS. 1 and 2) can be pressed downward.

Based on the proposed configuration, the valve disc/da is held in the lower position in FIG. The lever can be configured to freely rotate 2°.

In the configuration of the valve shown in Figure 1, a, the pressure fluid supply pipe is connected to the connection ko or the connection 3. The other connection S or connection C can be closed or communicated with another member to which pressure fluid is supplied.

Through the action of this pressure fluid, if not blocked by the lever λθ, the valve disc /lI is lifted up the passage 13 provided in the cover io into the closed position of the valve disc /4. It can flow along the active projecting pin 13 and from the chamber 7 via a passage into a line connected to the connection 3 for supplying the device operated by the pressure fluid.

By clockwise rotation of the lever, 20, the valve disc/
against the upper edge of the collar j, which projects to close the passageway, so that l can be moved downwards in the drawing against the pressure of the fluid supplied through the connection ko or the connection s. The valve disk/lI is now in position. at the same time,
Since the passage 13 provided in the cover IO becomes self-contained, pressure fluid can flow out of the connected device through the connection 3i.

As shown in FIG. 3, instead of the cover 10 there is a cover i having the same structure as the cover 10.

A passage /J provided in the notch /lit allows another cover to be placed on top of the casing l extending into a chamber surrounded by a gear cap 3 fixedly attached to the upper surface of the cover. Hole 3 formed within the gap λ3
' is in communication with a passage formed in the connecting portion DA which is integral with the gap controller 3. 1st. Valves of this type, whose casing, cover and valve disk are of the same material, preferably made of plastic material, are suitable for a variety of applications, as in the following valves.

It is therefore possible to connect conduits to the connections a, S and -da, for example for the supply of pressure fluid. If pressure fluid is supplied 5 via connection λ or connection S, the action of this fluid will cause the valve disc /I to move in the direction of the gap valve 3 so that the passage /3 formed in the cover is thus closed. The connection between the chamber and the cavity 3' surrounded by the cap 3 is closed. The pressure fluid supplied via the line connected to the connection 3 can be supplied according to a pressure fluid operated device or the like.

On the other hand, instead of via the connections C and S, the pressure fluid can be supplied via the connections 2D. In this case,
The valve disc puffer is moved into a position in which the valve disc llI closes the passage 6 so that the pressure fluid supplied via the connection λda can be discharged via the connection 9. In this way, a particularly simple so-called shut-off valve is obtained.

The valve can also be used as a so-called rapid bleed valve.

For this purpose, a pressure fluid supply line is connected to connections C and S, and a device actuated by this pressure fluid is connected to connection D.

At the end of the pressure in the conduit connected to the connections t, S, the valve disc/4' is moved back into a position where communication is formed between one connection t, koda, so that a rapid flow of fluid occurs. Discharge takes place from a device connected to the connection.

From the foregoing it will be clear that the use of a small number of parts, which can be made inexpensively of plastics material, results in a valve that can be used effectively for a variety of purposes.

For easy installation of the valve, the casing of the valve can be provided with one protruding slightly elastic tongue S which is inserted into a fitting groove provided in the support member as shown in the drawings.

A valve of the type described above is particularly suitable for use in controlling the operation of a conveyor system, for example as schematically illustrated in FIGS.

The conveyor device has a large number of conveyor rollers extending parallel to each other, and the conveyor rollers are attached to the frame member core 1g that supports these conveyor rollers 6 so as to be able to freely rotate around the axis. There is.

The left-hand end of conveyor roller 2A in FIG. 5 is supported by a frame member core such that each end can be pushed upwardly a fixed distance from the position shown in FIG.

Attach the other end of the conveyor roller to frame member-g.
It is clear that it is possible to pivot near the end about an imaginary axis extending in the longitudinal direction t.

An endless drive belt 2q extending perpendicularly to the axis of the conveyor roller 2A is provided below the conveyor roller 2A. The drive belt λ is driven by a drive (not shown) such that the drive belt λ moves to the left in Fig. made to move by the device.

As shown in FIG. 5, the drive peltco 9 is eccentric with respect to the center of the conveyor roller roller and is provided closer to the frame member body than the frame member -g.

Furthermore, in the illustrated embodiment, the driving peltcos are in line with each other and at least the drive peltcos? A large number of plate rollers <-30 extending parallel to each other are placed below groups of conveyor rollers 6 which are located next to each other, each group forming a group of six conveyor rollers 6 in the illustrated embodiment. Each brake bar 30 is mounted near the frame member 17 in such a way that each brake bar 30 extends in the direction of the drawing, as shown by the arrows. It is designed so that it can be moved up and down.

Each pneumatic power cylinder 31 is connected by a line J, 2 to an outlet connection of the casing l.

The connections of the different valves connected in series are connected to a line 33 for supplying compressed air.

A pin 16 projecting outward from the casing is pivoted to the frame of the conveyor device and connects to the conveyor roller, the lever 3 having a detection roller 35 at its end projecting above the conveyor roller.
Cooperate with Da. A spring acts on lever 3, and lever 3
The lever 3 is rotated in a counterclockwise direction when viewed from the drawing, and the lever 3 is in a position where the valve disc II in the casing 7 holds the passage 6 closed against the action of the pressure fluid. With the help of Da, the valve disk lhiro was brought.

If an article 3B transported by the conveyor device in the direction shown by arrow B comes into contact with the detection roller, as shown in FIG. This causes the lever 341. is freed from the pin /6 connected to the valve disc /H, so that under the action of the compressed air supplied via the line 33 the valve disc III is released from the valve seat forming the end of the passage O. As they are pushed apart, pressure fluid flows into line 3.
It can flow to the power cylinder 31 via . By supplying compressed air to the power cylinder 31, the brake bar 30 supported by the power cylinder 3/ is pushed upward, and the end of the conveyor roller roller located above the brake bar 30 is moved by the conveyor roller 6. It is pushed up into a device consisting of a driving pel top as shown in Figure 7. By pushing up the brake bar 30, the conveyor roller 6 is braked and at the same time freed from the drive, so that it moves in each direction of movement of the object according to the arrow B located upstream of the detection device actuated by the object 3A. The objects located on these conveyor rollers 6 shown are no longer moved. At the same time, the object 36 can actuate a detection device installed at one of the brakes or the conveyor roller roller to stop the conveyor roller 6 located upstream. In this way, a simple conveyor device with a stacking effect can be obtained.

It will be clear that the drive described as a drive belt of a conveyor device can be in the form of a chain or a rope, for example.

[Brief explanation of drawings]

1 is a partially sectional perspective view showing an embodiment of the structure of a valve according to the present invention; FIG. 1 is a vertical sectional view of the valve shown in FIG. 1; and FIG. Figure 1 shows another embodiment of the structure of the valve. Figure 7 is a schematic side view of a conveyor device according to the invention in which the rollers are in a position where they can all be driven by the drive belt, and Figure 5 is a diagram of Figure 9. A cross-sectional view corresponding to
FIG. 6 is a schematic side view similar to FIG. 9 in which a number of rollers have been pushed up and away from the drive belt, and FIG. 7 is a sectional view corresponding to FIG. 6. In the figure, /: casing, kot'7t4
'*Koda: connection part, S, 6°, / passage, ri: chamber, za: collar, lO: cover, lconi nose, /ri: valve disc, /A=pin, 17: ear, lj : Notch, Lde: Support part, -〇=Nilever-7: Spring, C3: Cap, S: Tongue, JA Nikon conveyor roller, Cota: Drive belt 1. ylI Nilever, Js: Sensing Loaf. Ft6. J.

Claims (1)

[Claims] 1. A casing is provided which has connections connecting the fluid supply and discharge lines and which are made to communicate with each other via passages provided in the casing and which can be closed with the aid of a valve disk. In such valves, the valve disc is provided in a chamber provided in the casing and closed by a cover and communicating with one of the connections, the other connection communicating with a passage extending into the chamber and extending into the chamber. The valve disk can move back and forth between a first position where the valve disk is positioned against a valve disk seat formed by one end of the passage and a second position where the valve disk closes the passage formed in the cover. A valve characterized by the fact that it has become like this. 2. The valve according to claim 1, wherein the cover is provided with a flange formed with a snap-locking edge that engages around the casing and engages with a corresponding groove provided on the outer periphery of the casing. . 3. Claim 1, in which the chamber provided in the casing is provided coaxially with respect to the axis of the passage extending into the chamber.
Valve as described in Section. 4. The valve according to claim 3, wherein two connecting portions are provided which are in line with each other and communicate with a passageway extending into the room. 5. A valve according to claim 4, wherein the connections are formed by connections that are integral with the casing and are all located in a plane extending diametrically through the longitudinal axis of the casing. 6. A valve according to claim 5, wherein the valve disk is provided with a guide portion slidably arranged in a passageway extending into the chamber. 7. A valve according to claim 6, wherein the valve disc is provided with a projection extending through the passageway of the cover and projecting out of the cover. 8. A valve as claimed in claim 7, characterized in that it is provided with a pivoting lever that cooperates with a part of the projection projecting out of the cover. 9. A valve according to claim 8, wherein a lever is provided on the valve cover for rotation against the action of a spring. 10. The valve according to claim 1, wherein the passage provided in the cover extends into a cavity provided with a connection for connection with a fluid supply/discharge line. 11. The valve according to claim 10, wherein the cavity is defined by a cap attached to the cover. 12. The valve of claim 11, wherein the cover is provided with a projecting ear having a passageway therein. 13. An endless drive belt, a drive device for driving the drive belt, a part of the drive belt that extends transversely to the longitudinal direction of the drive belt and contacts the rollers to move the article supported by the rollers during the drive. In a conveyor device in which rollers are provided which can rotate with the aid of a drive belt, one end of at least some of the rollers located close to each other is moved away from the drive belt such that the rollers are free of the belt. A conveyor device characterized in that a displacement device is provided near one end so as to be freely displaceable. 14. A brake bar is provided near the vertically displaceable end of the roller so that it can be moved up and down at right angles to the longitudinal direction of the roller with the aid of a power cylinder. conveyor equipment. 15. A conveyor system according to claim 13, wherein the displacement devices are actuated with the aid of a sensing device located downstream of each displacement device and indicating the direction of movement of the articles being moved by the conveyor device. 16. The valve of claim 13, wherein the portion of the drive belt cooperating with the roller is located closer to the upwardly movable end of the roller than the other end of the roller.