JPS5826764Y2 - Parts jamming release device - Google Patents

Description

[Detailed description of the invention] The present invention relates to a device for releasing parts from jamming, and its purpose is to:
The purpose is to ensure that the parts are released quickly and reliably by manual operation when the parts are jammed.

In a device that distributes parts continuously fed from a parts feeder to a plurality of parts storage sections of a distribution plate that moves in a linear reciprocating manner or in a rotational manner using a cylinder device, the passage 2 of the chute table 1 is used as shown in FIG. The falling parts W may cause a jamming phenomenon between the exit of the passage and the entrance of the parts storage section 4 of the distribution plate 3.

In such a case, it is necessary to make an emergency stop of the machine to release the jamming, but in the case of a transfer machine, making an emergency stop poses a big problem.

The present invention solves this problem and makes it possible to release jamming in a short time, reliably and easily without stopping the machine.

Embodiments of the present invention will be described below with reference to FIGS. 1 to 4 and 6.

First, the outline of the device of the present invention will be explained. First, a distribution plate is provided with a storage section 4 for storing parts W one by one on the front side of a chute table 1 having a passage 2 for guiding parts W continuously fed from a parts feeder. A manually operated valve 8 is located between the cylinder device 5 that moves the valve 3 and the electromagnetic switching valve 20.
is provided, and when the part W becomes jammed, this manually operated valve 8
The operation knob 11 is operated in a specific manner to temporarily stop and release the cylinder device 5, and the cylinder device 5 is restarted from the stopped state.

The configuration of the manually operated valve 8 will be explained.

9 is a valve body, and the valve body 9 has A and B ports that communicate with the electromagnetic switching valve 20, a C port that communicates with the front chamber 6 of the cylinder device 5, and a D port that communicates with the rear chamber 7. ing.

Furthermore, a spool 10 is fitted inside the valve body 9,
It is operated by an operation knob 11 outside the valve body 9.

This spool 10 rotates only in the range of 900 degrees, and
It is specified by a specific operation that allows sliding in the axial direction only when rotating by 0°.

To evaluate its operation, a key-shaped guide groove 14 is provided in the inner diameter surface of the cap 13 at the end of the valve body 9 in the circumferential direction at 90° and in the axial direction with a length equivalent to l. An engaging pin 16 is fixed to the neck of the spool 10.

Further, the spool 10 is always suppressed in the backward direction by a spring 12 installed inside the valve body 9, and is regulated by a stopper 15 against which the engagement pin 16 comes into contact.

That is, the original position of the spool 10 is moved backward by the spring 12 as shown in FIG. However, it does not move in the axial direction.

Spool 1 based on this original position state of spool 10.
0 has the following passages.

A passage connecting the A and C ports, a long groove corresponding to the forward movement amount l of the spool 10 corresponding to the C port at one end, and a similar long groove at the 900 position with respect to the long groove H are provided. Both long groove ho.

are communicated with each other by a notch 17 provided in the area of the passage.

Next, a passage 2 is opened in a direction perpendicular to the passage at a predetermined distance from the passage in the distal direction.

Furthermore, an annular groove 18 is provided on the outer peripheral surface corresponding to the B and D ports.
is provided, and has a long groove G corresponding to the D port at one end, and a long groove G at a position 900 with respect to the long groove G, and both long grooves G and G are connected by the annular groove 18.

On the other hand, the valve body 9 has a passage A perpendicular to the port A, a passage A,
It has a passage opening that communicates between the C port and the B and D ports, and a passage C that is perpendicular to the port D, and a throttle valve 1 is connected to the passage.
9 is provided.

Next, the operation of the above device will be explained.

The manually operated valve 8 normally has a spool 10 as shown in FIG.
is placed in its original position.

In the original position of the spool 10, the A, C, B, and D ports are in communication with each other as shown in FIG. 6, 8a.

That is, as shown in FIG. 2, the A port and the C port communicate through the passageway of the spool 10, and the
The ports communicate via an annular groove 18.

Therefore, when the electromagnetic switching valve 20 is switched to the valve 20a side, the pressure P passes through A→S→C, and the pressure P passes through the front chamber 6 of the cylinder device 5.
The pressure fluid in the rear chamber 7 is returned to the tank through D→18→B.

Therefore, the distribution plate 3 moves to store and distribute the parts W from the chute stand 1 into the storage section 4.

At the working end of the cylinder device 5, the electromagnetic switching valve 20 is connected to the valve 20b.
side, the cylinder device 5 is operated in the opposite direction, the distribution plate 3 is returned to its original position, and the electromagnetic switching valve 2 is operated again.
0 to the valve 20a side, the distribution operation is repeated.

During such parts distributing operation, if the parts W become jammed as shown in FIG. 5, the manual operation valve 8 is operated.

The jamming phenomenon of the parts W occurs during the distribution operation when the electromagnetic switching valve 20 is switched to the valve 20a side.

When the parts W become jammed, the jamming is released by quickly temporarily stopping the operation of the cylinder device 5 and moving the distribution plate 3 backward by a slight amount in the direction of the original position.

Therefore, the cylinder device 5 is stopped by rotating the spool 10 by 90 degrees using the operating knob 11 of the manually operated valve 8, and then the spool 10 is pushed forward against the pressing force of the spring 12 by a stroke of l, and the cylinder device 5 is moved forward by a stroke of 1. The device 5 is moved backward by slow feed.

That is, when the spool 10 rotates 900 times, the sixth
As shown in Figure 8b, the A port on the pressure fluid supply side is blocked, the C port communicates with the tank through the notch 17 → passageway → annular groove 18 → B port, and the D port communicates with the tank through the annular groove 18. →It communicates with the tank through the B port, and the cylinder device 5 is immediately stopped.

Furthermore, when pushing the spool 10 forward, as shown in FIG.
As shown in c, A port is connected to passage A → passage 2 → throttle valve 1.
9 → passage C → communicates with the rear chamber 7 of the cylinder device 5 through the D port, and the front chamber 6 of the cylinder device 5 is connected to the C port → to the long groove →
Notch 17 → Passage E → Passage opening → Annular groove 18 → Long groove 4 → B
It communicates with the tank through the port.

Therefore, the fluid pressure supplied from the A port is reduced by the throttle valve 19 and is supplied to the rear chamber 7 of the cylinder device 5, and the cylinder device 5 performs a slow feed reverse operation to move the distribution plate 3 forward. This is to release the part W from being jammed.

After confirming that the part W has been released, the spool 10 is released, and the spool 10 is automatically moved backward by the pressing force of the spring 12, returning to the 900 rotation state and stopping the reverse operation of the cylinder device 5. go up

Then, by rotating the spool 10 90' in the reverse direction, it returns to its original position, and the cylinder device 5 resumes its normal dispensing operation.

As described above, according to the device of the present invention, when parts become jammed during parts dispensing operation, the distribution plate can be immediately stopped from moving by operating the manual operation valve installed between the cylinder device and the electromagnetic switching valve. Since the machine stops and moves forward, the jamming of parts can be quickly released, and moreover, the jamming can be easily released without having to bring the machine to an emergency stop.

[Brief explanation of drawings]

Figure 1 is a sectional view of the device of the present invention, Figure 2 is a sectional view taken along the line ■-■ in Figure 1, Figure 3 is a sectional view taken along the line I-1 in Figure 1, and Figure 4 is a sectional view taken along the line I-1 in Figure 1.
FIG. 5 is a sectional view taken along the line Vl-Vl, FIG. 5 is a sectional view showing the parts being engaged, and FIG. 6 is a view showing the passages of the manually operated valve in its original position, when rotated 90', and when it is pushed in. 1... Chute stand, 3... Distribution plate, 4...
Parts storage section, 5... Cylinder device, 8... Manually operated valve, 9... Valve body, 10... Spool, 11...
・Operation knob, 12... Spring, 13... Cap, 14... Guide groove, 16... Engagement pin, 20.
...Solenoid switching valve.

Claims (1)

[Scope of utility model registration request] In a device that distributes parts continuously fed from a parts feeder or the like to a plurality of parts storage sections of a distribution plate moved by a cylinder device, a manually operated valve is provided between the cylinder device and the electromagnetic switching valve, and the manually operated valve is disposed between the cylinder device and the electromagnetic switching valve. The operating valve has two ports A and B communicating with the electromagnetic switching valve in the valve body, and ports C and D communicating with the front and rear chambers of the cylinder device, respectively. A spool that is moved forward and backward in the axial direction is provided, and the spool communicates the A and C ports with the B and D ports in the original position and moves the cylinder device forward and backward by switching operation of an electromagnetic switching valve. When pushing forward, A, D ports, B,
A parts jamming release device comprising a passage communicating with a C port to move a cylinder device.