JPS60199599A - Control device for operation of pushing plate in waste pusher - Google Patents

Abstract

PURPOSE:To push automatically waste into a container by extending or contracting hydraulic cylinders cooperatively with closing of a gate in a waste feed port to actuate the pushing plate for waste in a waste pusher. CONSTITUTION:Waste is fed into a feed port 5 provided in the front part of a container 1 provided with a waste pusher consisting of a container 2 for contg. waste and a hydraulic unit 3 and an open/shut cap 23 is closed. A pusher 6 constituted of a waste pushing plate 8, a shielding plate 9 for the port 5 and an arm 10 is installed below the hopper 5a in the lower part of the port 5. When the operator closes the cap 23 after feeding the waste into the port 5, a switch is turned on automatically and the piston rods of hydraulic cylinders 11a, 11b attached to the rear surface of the plate 8 repeat extension and contraction to push the waste in the hopper 5a into the container 2. The pusher 6 is automatically actuated when the open/shut cover in the feed port is closed and therefore the operation of the waste pushing container is extremely easy.

Description

Detailed Description of the Invention (Field of Application) The present invention relates to an operation control device M for a pushing plate in a waste pushing device.
This is related to K.

(Prior art i) Conventionally, a pushing plate was provided near the input port of the waste storage container, and this pushing plate was rotated by a hydraulic cylinder to push the waste thrown into the NRS storage container into the inside thereof. The waste pushing device is known from the company [57-17803].

However, in this waste pushing device, each time the pushing plate is operated to the pushing end position 1σ and then returned to the pushing starting position 1N, the switching valve connected to the hydraulic cylinder must be switched via the operation switch. However, the operation was complicated.

(Object of the Invention) The present invention has been made in view of the above-mentioned drawbacks, and by opening the opening/closing lid of the inlet and then closing the opening/closing lid,
It is designed to automatically operate the pushing plate at one position when pushing in waste.

(Structure of the Invention) The structure of the present invention is that a hydraulic cylinder VC connected to a pushing plate VCd
An electromagnetic switching valve is interposed, and an electric circuit connected to the electromagnetic switching valve is provided with a switch that opens and closes in response to the opening/closing operation of the opening/closing lid that is inserted into the inlet.

(Example) 1 shows a discarded yJ genuine push-fitted container, and container 2
and a hydraulic unit 6.

This container 2 has an open rear end, and this rear end opening is i! JJ is always closed by tailgate 4.

On the other hand, an input port 5 is opened at the front upper part of the container 2.
A pond that can be opened and closed with 1iN23, and a hopper 5a is formed below it.

Further, a pushing device 6 is installed at the lower part of the container 2 in the tjiJ direction facing the hopper 5aK so as to be slidable in the +iiJ rear direction. This pushing device 6 has a pushing plate 8 that slides on its sliding surface Z and pushes the garbage thrown in through the input port 5 into the container 2, and is connected to the end of the pushing plate 8 l1IJ, and The pushing device 6 is constructed of a shielding plate 9 that shields the hopper 5a, and an arm 10 connected to the shielding plate 9 and the hopper 5a by a VC. Bracket Ir1J backwards between the push-in start position shown by the solid line and the push-in end position shown by the dashed-dotted line.
It is a moving sight.

In addition, to explain the installation state of the hydraulic cylinders 11a and 11b, the pistons of the hydraulic cylinders 11a and 11b are placed in the left and right sides of the push-in brackets 12a and 12bl, respectively, and are arranged intersectingly in a CX shape. The loft is connected, while the iJ number mounting bracket 12a
12b, the mounting bladder is fixed to the construction part of the container 2611.

) 13B, 13t+ are hydraulic cylinders Ila, 11b (1
The hydraulic cylinders 11a and 11b are both rotatable within the horizontal U.

FIG. 1432 shows a hydraulic circuit for controlling the expansion and contraction of the hydraulic cylinders 11a and 11b.

The configuration of this circuit will be described below. The hydraulic oil passage 14 is connected to the brown oil mA and the second oil chamber B, which are partitioned by the pistons in the hydraulic cylinders 11a and 11b.
．． Is is connected to the outlet side port of the electromagnetic switching valve V. There is a coupling 1 in the middle of the hydraulic oil passage 14°15.
6, a rubber hose 17 is connected to the hydraulic cylinder 1.
1a, 11b and the magnetic switching valve V are separated.
The inlet side boat of the electromagnetic switching valve V is connected to the hydraulic pump P via the discharge oil passage 18 and to the oil sump T via the return oil passage 19, and the discharge oil passage 18 and the return oil passage 1ν are connected to the relief valve 20.
are short-circuited by a short-circuit oil path 21 interposed therebetween. tN
The hydraulic pump P is interlocked with a motor M, thereby causing it to rotate 1lJAIII.

A pressure switch PS is connected in the middle of the discharge curved path 18, and this pressure switch PS is closed when the pressure in the discharge oil passage 18 reaches a predetermined pressure or higher.

Therefore, this pressure switch PS and the first second solenoid 5oL1, 5Q for switching off the pressure switch PS and the switching valve V
Both L2 are incorporated into the electrical circuit which will be described later.
From the inside and state of the switching valve B shown in Figure 2, if this is switched to the right 1tllI, the pressure oil from the hydraulic pump P will flow through the discharge oil passage 18, the electromagnetic switching valve V and the hydraulic oil passage. 14
The oil in the first oil chamber A of the hydraulic cylinder 8 passes through the hydraulic cylinder 8, and the oil in the second oil chamber B flows into the hydraulic oil passage 15. The oil is returned to the oil droplet T by following the electromagnetic switching valve V and the return oil path 19.

Therefore, the hydraulic cylinders 11a and 11b are operated to collect the debris, thereby pushing the debris pushing plate 8 back to the starting position K as shown in FIG. In addition, the electromagnetic switching valve V is controlled by the hydraulic oil MIS.
15, the second oil chamber of the hydraulic cylinder 8 also enters the interior, while the oil in the first oil %A flows through the valve J oil passage 14 and the electromagnetic switching valve V.
The oil is then returned to the oil reservoir TK following the return oil path 19. Therefore, the hydraulic cylinders 11a and 11b are operated to extend, and the pusher &8 can be slid to the pushing end position 1bJt.

FIG. 4 shows an electric circuit for controlling the expansion and contraction of the hydraulic cylinders 11a and 11b, and the 1L source circuit includes a motor M, an emergency stop switch SW1, and a main switch SW2.
．． Magnetic relay MO and its a contact mc, first and second solenoids 5ob1, 5oL for switching operation of electromagnetic switching valve V
2 and relays R8 to R10 a g Ar 8 to r10
or wired.

- 10,000, the operation circuit which is switched off via the 'ttL source circuit back circuit flow device S has a changeover switch sw6. Manual operation switch, switch SW4 to SW6. Pressure switch PS.

Proximity switches NSi to NS6. Relay I ((J~R1
and its contacts rO-r12. Timer relays T1-T5 and their contacts t1-t5. A counter 00, its contact OU, and a pilot lamp PL are connected.

The proximity switches NS1 and NS2 are respectively attached to the left and right input ports 5.5, and the opening/closing operation of the opening/closing metal 26 is +1.
i1J opens and closes, and the close switch NS6 is installed on the hopper baJ1 side, and is pushed through the arm 10 by the pusher OL8.
It closes with hand +j+j a little further than the push-in end position, and opens again at the push-in end position 1b.

#Ta. A control cassette with a built-in circuit is provided on the hydraulic unit 6 side, and this control (2) outside of the cassette 2 @ I
c % sudden stop switch sw1, main switch SW2
The biloft lamp PL is equipped with a changeover switch SW6 and manual sampling switches SW4 to SW6.

(Function) = After opening the a-period opening/closing lid 26, waste is introduced from the input port 5, and then by closing the opening/closing lid 26,
The objective VL pushing plate 8 is moved from the pushing start position vt (actual IM) to the pushing end position (one point 11, and the reverse stroke of the garbage disposal tray)!l!l is continuous. Close main switch Sw2 and switch switch SW
3 to automatic position 1w (when the record closing cover 23 is closed,
Closing of proximity switch NS1 or N82 energizes relay R11, closing its a contact rll. When relay R2 is energized, relay R2 is self-held via its a-contact r2, and relay R8 is also energized, and the closing of a-contact r8 starts the motor M and rotates the hydraulic pump P. , the hydraulic circuit shown in FIG. 2 is put into operation.

In addition, a contact r2゜rll of the relays R2 and R11
By the closing of , relay R6 is energized and its a contact r6
When the relay R9 is closed, the relay R9 is energized and its a contact r9 is closed, so that the negative current flows to the first solenoid 5obl and energizes it.

Then, the electromagnetic switching valve (not shown in Fig. 82) is switched to the 2i: side, the pressure oil from the hydraulic pump P flows to the second oil of the hydraulic cylinders 11a and 11b as described above, and the pushing plate 8 finishes pushing. It operates to move into position.

When the hydraulic cylinders 11a and 11b are extended to the maximum, the oil pressure in the discharge oil passage 18 increases and closes the pressure switch 2 PS, so that the flow goes to the timer relay T1 and the oil pressure remains constant. The relay RO is energized by closing its 8 slave point t1, and its a (& point ro
Close. Therefore, relay R4 is energized, and when its am point r4 is closed, VCblν point r4 is simultaneously opened. As a result, relay R4 is self-holding, and at the same time, timer relay T6 is loaded by i+6, and the counter 00
However, relay R6 is demagnetized. Then, the relay R9 is also demagnetized, the energization to the first solenoid 5OL1 is stopped, the 'ama exchange valve is returned to the middle position by the return spring, and the push-in &8 is stopped at the push-in end position. After the certain period of time has passed, aJjJ point t6 of timer relay T6
When the relay R5 is closed, the relay R5 is energized, which closes the a contact r5 and at the same time opens the b contact r5.
is self-held, and relay RID is energized, and its a
By closing the contact rlO, the current passes through and energizes the second solenoid 5QL2VCDo.
Then, the u value switching valve V is switched to the right side, and the pressure oil from the hydraulic pump P causes the hydraulic cylinders 11a and 11b to contract, pushing the pushing plate 8 and retracting it to the 7411th position.

When the hydraulic cylinders 11a and 11b are fully contracted, the oil pressure in the discharge oil passage 1B rises, and when the pressure switch and PS are closed, the current flows to the timer relay TIK, and after a certain period of time as described above, the timer relay By closing the a contact t1 of T1,
Since relay RO is energized and closes its m'ld point ro, relay R6 is energized and is self-held via its ai point r6, and relays R4 and R
IO becomes 700 magnets. Then a' on the counter 00! !
, is stopped, the counter 00 of the counter circuit counts 1, and by opening the ai point r10 of the relay RIO, the second solenoid 5Q
The energization to L2 is stopped, and the switching valve mouth spring returns the switching valve to the stop position IRK, and the push &8 stops at the push start position 1a. After that time has passed,
When bv point t4 of timer relay T4 is opened, relay R
5 is demagnetized and by closing its by point s+,
The relay R3 is energized, and the pushing plate 8 moves forward again from the pushing start position 11 to the pushing end position in the same manner to start the garbage processing process.

Then, when the push plate 8 retreats to the push start position, the counter CO counts 2.

In this way, the number of garbage processing cycles is accumulated in the counter 00, and when the accumulated number is counted in the set counter 00, the ai point 0
By closing 0, relay R7 is energized and its b contact is opened, so relays R1 and R2 are demagnetized and the push plate 8 is stopped at the push start position until the opening/closing lid 26 is opened and then closed again. .

Furthermore, by closing the b-contact r2' of the relay R2, the timer relay T5 and the clear circuit 6 of the counter 00 are passed through, and after a certain period of time, the btd point t5 is opened.
The set number of times in the counter 00 is cleared. Similarly, when the opening/closing lid 23 is opened, the counter 00 is cleared to OK.

In this way, by opening and closing the opening/closing lid 26, the input port 5 can be opened and closed.
The more thrown waste is sequentially stored in the container 2, and when the container 2 is full of garbage, the hydraulic cylinder 11a
, 11b is being extended, the pressure switch PS is closed, so after a certain period of time the relay RO is energized,
Its a contact rO relay R12 is energized, and its a, bJ
Since each point r12° and r12° are opened and closed, the relay R1 is demagnetized and the pilot lamp PL lights up to notify the full state. That is, when the container 2 is F&H, after the pushing plate 8 written in IJ'J is pushed a set number of times, the pushing plate 8 is moved back to the pushing start position by a force i1++.
Even if the opening/closing lid 26 is opened and garbage is thrown in from the input port 5, and the opening/closing lid 23 is then closed, the Jilt insertion plate 8 will not start its pushing operation.

Furthermore, if the changeover switch SW6 described in iiU is switched to the manual position and the manual operation switches sw4 to sw6 are appropriately closed,
Accordingly, the motor M is driven and the mad magnetic switching valve V is turned to 9.
You can change it.

In addition, in the actual example of the present invention, the 1g leafy material input port 5 is connected to two cylinders F.
Although it is provided in the input port No. 5 or 1 +JF, it may be provided with 6 or more IJR, and the proximity switch NSI~N
S5 may be a limit switch or the like, and as described above, according to the present invention, after opening the opening/closing lid provided at the input port, waste is inputted from the input opening, and then the opening/closing lid is closed. Once closed, the pushing device automatically starts the pushing operation, making it extremely easy to operate and allowing for safe work.

Furthermore, since the pushing plate is capable of repeating the process of pushing in and returning the trash a set number of times &M, even if a large amount of trash is thrown in through the inlet, all of it will not remain in the inlet and will remain in the container. It is also possible to Q'4 for 5 pieces.
The fQ light drawings illustrate an embodiment of the present light, and FIG. 1 is a side view thereof, FIG. 2 is a hydraulic circuit diagram, FIG. 3 is a front front view, and FIG. 4 is an electric circuit diagram.

2...Container, 5...Input port, 8...Pushing plate, 11a, 11b...Hydraulic cylinder, 23...
...Opening/closing lid, P...Hydraulic pump, ■...Solenoid switching valve, ps...Pressure switch, NS1. NS2. N
S6... Proximity switch.

Applicant: ShinMaywa Industrial Forest Shikikai Figure 1

Claims (2)

[Claims] (1) An opening/closing lid is provided to open and close an input port opened in a waste storage container such as a container, and a hydraulic cylinder is connected to a push plate provided facing the input opening, so that the opening/closing operation of the opening/closing lid is performed. A waste product characterized in that a switch for opening and closing is provided in an electric circuit connected to an electromagnetic switching valve that controls expansion and contraction of the hydraulic cylinder, and a trap is set such that a garbage processing process by a push plate is started when the opening/closing lid is closed rIiJ. Operation control device ff for a pushing plate in a pushing device. (2) A counter circuit is provided in the electric circuit, and +JfJ
The operation control of the pushing plate in the waste pushing device according to claim 1, wherein the opening/closing lid opens and closes the opening/closing lid to continuously repeat the garbage processing process by the pushing plate and then stop it. Place.