JP2529150B2 - Lid removing device for pre-washing device - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lid removing device in a prewashing device for removing residual food adhering to a container such as a lunch box.

[0002]

2. Description of the Related Art There are various washing machines for mechanically washing a large number of lunch boxes. In this type of washing machine, if a large amount of residual food remains in the container, the cleaning effect is reduced. Therefore, it is necessary to remove most of the residual food before cleaning with a cleaning machine, that is, so-called preliminary cleaning. Currently, as a method of pre-washing, remove the lid of the lunch box that has been collected, turn the container body upside down and hit it against the corner of the collection box such as a poly bucket several times to give a shock and remove the large residual food. Generally, a hand washing method of soaking in a tank containing a cleaning solution and collecting the cleaning solution is performed. Further, recently, a mechanical cleaning method in which a net conveyor and a shower are combined has been proposed. In this method, the injection nozzle is arranged below the upper surface of the conveyor, and the openings of the container with the lid removed are arranged side by side toward the upper surface of the conveyor, and the cleaning liquid is sprayed onto the container passing above the cleaning nozzle to clean it. is there.

[0003]

Problems to be Solved by the Invention The prior art has the following problems. <I> In the hand washing method, all the steps of removing the lid, inverting the container body, pickling, and collecting are performed manually, so not only is work efficiency low,
It requires a lot of work. <B> Also, in the case of the hand washing method, the container is severely damaged due to repeated impacts on the container. <C> Even with the mechanical method, it is necessary for an operator to remove the lid in advance, which requires a lot of trouble. Further, since the lid is not the object of prewashing, there is a disadvantage that even if leftovers adhere to the lid, it cannot be prewashed.

[0004]

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems. The object of the present invention is to automatically remove the lid of a container and to wash the container and the lid together. , To provide a lid removing device in a pre-washing device.

[0005]

Means for Solving the problems] The present invention bay song at the end of the conveyor to be transported by placing the container with a lid
The guide is provided and along a curved guide by inverting the container,
In preliminary washing apparatus for cleaning by blowing the cleaning liquid into the container, the mounting plated provided for temporarily placing the container with a lid on the upstream side of the upper surface of the conveyor, mounting transporting the container with a lid groups on plated co <br/> conveyors The push-out plate that pushes out to the upper surface of the conveyor is installed so that it can move back and forth , and the lid is slid down in the upward direction on the way to the upper surface side of the conveyor.
And the inclined plate to be supplied to the upper surface of the conveyor, and straddle the conveyor, the inclined plate and the conveyor
A swing arm that reciprocates in the section with the upper surface is provided to
Negative pressure suction type that can be adsorbed on the upper surface of the container lid on the horizontal part of the chamber
A sucker is provided, and the sucker comes into contact with the lid and the swing arm rises.
Negative pressure is generated over the section that the
Negative pressure is cut off when the lid is turned upside down by swinging to the upper position
The lid removing device in the pre-washing device is characterized by being set as described above.

[0006]

The present invention will be described below with reference to the drawings.

<B> General Description FIG. 2 shows a side view of the preliminary washing apparatus, and FIG. 3 shows a plan view thereof. The prewashing device removes the lid 11 of the container 10 and
It is an apparatus for continuously performing the step of arranging the parts together with the step, the step of pouring water into the container 10 and the lid 11 to invert it, and the step of washing toward the inside of the container 10 and the lid 11. Each part will be described in detail below.

<B> Carry-In Belt In FIGS. 2 and 3, reference numeral 20 denotes a carry-in belt, which is a known endless belt conveyor and is arranged in a direction orthogonal to a conveyor 40 which will be described later.

<C> Extrusion means One side of the conveyor 40 in front of the carry-in belt 20 is
A placement floor 30 is provided on which a plurality of groups of containers 10 are temporarily placed. Extrusion plates 3 that periodically advance and retreat to the side of the bed 30
1 is arranged. As a means for moving the push-pull plate 31 back and forth,
For example, in addition to the cylinder 32 that expands and contracts with air, various known reciprocating mechanisms can be adopted. The connection structure between the upper end of the extrusion plate 31 and the cylinder 32 maintains the verticality of the extrusion plate 31 when the cylinder 32 extends and allows the rotation of the extrusion plate 31 only when the cylinder 32 contracts. It is connected in a state that allows rotation. This is extruded plate 3
This is because the container 10 is not pushed down from the mounting floor 30 when the container 1 moves backward. The push-out time of the push-out plate 31 is set so that the lidded container 10 can be supplied to every other space defined by the transfer claws 43 of the transfer conveyor 40 described later.

<D> Conveyor Conveyor The conveyer 40 has a plurality of sprockets 41a to 41c, some of which are connected to a drive source, and sprockets 41a to 41c.
A pair of endless chains 42, 42 rotatably wound between 1c, and a plurality of transfer claws 43 connected between the chains 42, 42 at regular intervals in a direction orthogonal to the moving direction of the chain. And a fixed floor 80 that prevents the container 10 and the lid 11 from dropping and supports the container 10 and the lid 11 from the loading floor 30 to a position almost directly below the sprocket 41a.
The transfer claw 43 has a function of transferring the container 10 and the lid 11 in which the steel strip 43b is integrally attached to the arm 43a as shown in FIG. 5, and a function of a receiving member when the container 10 and the lid 11 are inverted. Both ends of the arm 43a are connected to each chain 42. A large number of notches 43c are opened on the plate surface of the strip plate 43b. This transfer claw 43
Are arranged at intervals slightly wider than the entire length of the container 10 and the lid 11. Fixed floor 80 is straight floor 81 and sprocket 41
a floor integrally formed with a curved portion 82 that is bent at a rate substantially equal to that of a, and a single plate body, or a group of rollers arranged in a direction orthogonal to the transfer direction of the container 10 or the like, or the container 10 or the like It is composed of a rod-shaped body or the like arranged in the transfer direction.

<V> Container Transfer Path In the present invention, the container 10 and the lid 11 are transferred by utilizing the upper and lower spaces of one conveyor 40. That is, the end side of the transport conveyor 40 is covered with a bending guide 44 having a higher ratio than the bending portion 82 of the fixed floor 80, and further, in the extension direction of the bending guide 44, on the lower surface side of the transport conveyor 40, The first duct floor 45, the cleaning floor 46, and the second duct floor 47 are continuously formed. The upper portion of the bending guide 44 is pivotally supported so as to swing when a force acts outward from the inside. The curved guide 44 is configured to be swingable so that when the foreign matter (chopsticks, spoons, etc.) is mixed between the curved guide 44 and the conveyer 40, the conveyer 40 is moved.
This is because it does not prevent the rotation of the machine and for maintenance inspection. still,
In the figure, reference numeral 48 is a kitchen tray, 49 is a sliding floor for sliding the container 10 and the lid 11 from the second duct floor 47 to the carry-out conveyor 51, and 13 is a cover for covering the curved guide 44.

<F> Lid Removing Device The lid removing device automatically removes only the lid 11 , flips the removed lid 11 upward , and further flips the lid 1.
1 is a device that supplies 1 to the upper surface of the conveyor 40. That is, as shown in FIGS. 1 to 3, on the upper surface side of the transport conveyor 40, a swingable swing arm 60 straddling the conveyor 40 is provided.
And a fixed tilt plate 61 are provided. Swing arm 6
0 has both ends pivotally supported on both sides of the conveyor 60, and a plurality of suction cups 62 are attached to the horizontal part of the swing arm 60. Each suction cup 62 is connected to a vacuum pump 63 to constantly generate a negative pressure,
Is configured to swing to the uppermost position and the negative pressure is temporarily cut off when the lid 11 is inverted . As a method of shutting down the negative pressure, for example, a sensor for detecting the uppermost position of the swing arm 60 is arranged along the swing trajectory of the swing arm 60, and the pipe 6 connecting the suction cup 62 and the vacuum pump 63 is arranged.
A normally open solenoid valve 69 is interposed on the way of 8, and the solenoid valve 69 closes the flow path for a short time based on the detection signal of the sensor. The swinging range of the swinging arm 60 depends on the suction cups 6
From the position where 2 abuts the lid 11 on the conveyor 45,
It is set in a range up to a position where the sucked lid 11 becomes substantially parallel to the inclined plate 61. FIG. 6 shows an example of the swing mechanism of the swing arm 60 in which a cam and a link are combined. 64a
Is an original shaft that is driven by receiving rotation from a drive shaft of a conveyor 40 (not shown), and a cam plate 64b is integrally fixed to the original shaft 64a. The rotational force of the original shaft 64a is applied to the conveyor 4
The drive shaft of 0 is required to synchronize the swing timing of the swing arm 60 with the rotation of the conveyor 40. A disk 65b is attached to the support shaft 65a at the base end of the swing arm 60.
Are integrally fixed. Reference numeral 66 denotes a swing plate, a part of which is rotatably supported by a support shaft 66a, and an idle roller 66b provided on a part of the swing plate is pressed against the peripheral surface of the cam plate 64b through a ridge 66c. A link 67 connects between the long hole 64d provided at the end of the swing plate 66 and the circular plate 65a. Then, the oscillating plate 66, which is in contact with the cam plate 64b in response to the constant-speed rotation of the original shaft 64a, starts oscillating about the fulcrum 66a, and the oscillating motion of the oscillating plate 66 oscillates via the link 67. It is converted into reciprocating motion of the arm 60. Swing arm 60
The swing angle θ of is determined by the shape of the cam plate 64b.

<G> Cleaning Liquid Supplying Means In the present invention, the cleaning liquid is sprayed onto the container 10 and the lid 11 on the upper and lower surfaces of the conveyor 40 for cleaning. That is, as shown in FIG. 2, the swing arm 60 and the bending guide 4
Downward nozzles 70 are disposed above the transport conveyor 40 between the four nozzles 4 in the transverse direction of the conveyor. Also,
As shown in FIG. 3, a plurality of rows of upward nozzles 71 are arranged on the lower surface of the cleaning floor 46. Both of these nozzles 70, 7
1 may be a pipe in which holes are formed in the peripheral surface, or a large number of single nozzles may be arranged. As the cleaning liquid sprayed from each of the nozzles 70 and 71, for example, warm water or a liquid mixed with detergent can be used.

<H> Holding means for containers and the like As shown in FIGS. 2 and 5, a plurality of sets of holding tools 90 are provided above the cleaning floor 46. The retainer 90 is composed of a plurality of rods, chains or the like, and the weight of the rods causes the container 10 to move.
It is a member that restrains the lifting of the lid 11 and the lid 11, and is inclined toward the transfer direction of the container 10 and the lid 11, and the upper portion thereof is rotatably supported.

[0015]

Next, the operation of the preliminary washing device will be described.

<a> Transfer of container with lid As shown in FIG. 2, the carry-in conveyor 20 transfers the container 10 with a lid toward the placing floor 30, and the container 10 with a lid is placed on the placing floor 30.
Temporarily placed on top.

<B> Container Extrusion When a predetermined container 10 is stocked on the loading floor 30, the pushing plate 31 moves forward to push the containers 10 on the loading floor 30 all at once to the conveyor 40, and then to the original position. Retreat to. When the push-out plate 31 retracts, it collides with the containers 10 continuously supplied onto the loading floor 30, but the push-out plate 31 rotates to prevent the containers 10 stocked on the loading floor 30 from falling.
The container 10 with a lid has a fixed floor 80 partitioned by the transfer claw 43.
Is extruded onto the straight floor 81 and is left to stand still. For the container 10 with a lid that is left stationary on the linear floor 81, the lid 11 is removed by the following procedure until the transfer claw 43 comes into contact.

<C> Removal of Lid When the pushing out of the lidded container 10 by the pushing plate 31 is detected by a sensor (not shown) or the like, the swinging arm 60, which is on standby in response to this detection signal, starts to descend. . The suction cup 62 encounters the lid 11 of the container 10 and crimps it while generating a negative pressure. When the swinging of the swinging arm 60 reaches the lowest position, the swinging arm 60 switches to rising. As the swing arm 60 rises, the suction cup 62
Rises and lifts only the lid 11, and the lifted lid 1
The opening of No. 1 gradually turns upward. During this time, the transfer claw 43 presses against the back surface of the container 10 to start transferring the container 10. When the swing of the swing arm 60 reaches the uppermost position, the negative pressure of the suction cup 62 is momentarily cut off. Then, the lid 11 drops off from the suction cup 62, slides down along the inclined plate 61, and is placed on the upper surface of the linear floor 81 on the rear side of the preceding container 10 in an upward state, and then the transfer claw 43 is placed on the rear surface of the lid 11. The lid 11 is contacted and the transfer of the lid 11 is started. By repeating the above operation, 10 rows of containers and 11 rows of lid portions are alternately placed on the upper surface of the fixed bed 80, and the rows of 10 placed containers and 11 rows of lids are placed on the transfer claws 4.
At 3 the slide on the fixed floor 80 while receiving the transfer force.

<D> Water injection When the container 10 and the lid 11 in the upward direction pass immediately below the downward nozzle 70 that continuously ejects the cleaning liquid, the cleaning liquid is injected into each container 10 and the lid 11. .

<E> Reversing When the container 10 and the lid 11 reach the end of the conveyor 40, the container 10 and the lid 11 filled with the cleaning liquid are supported by the curved guide 44 so that the opening faces downward. Flip to. For example, when the container 10 is inverted, the conveyor 4
Sliding on the peripheral surface of the curved portion 82 of 0, colliding with the transfer claw 43 in the front, and the scraps easily peeled off by the injection of the cleaning liquid are subjected to this impact and drop toward the scraps tank 48 all at once. . Lid 11
The same is true for. The drop distance of the container 10 and the lid 11 is set to a short distance that does not damage the container 10 and the lid 11.

<F> Washing The container 10 and the lid 11 continue to be transferred while being pressed downward by the transfer claw 43 of the transfer conveyor 40. When the container 10 and the lid 11 enter the cleaning floor 46, the container 10 and the lid 11
The pressing tool 90 contacts the upper surface of the. Container 10 and lid 11
Continues to be transferred while being pressed against the cleaning floor 46 by receiving the weight of the presser 90, and the cleaning liquid is sprayed from the upward nozzle 71 when passing through the upward nozzle 71. The cleaning liquid is used on the entire inner surface of the container 10 and the lid 11 and the cleaning floor 46.
A turbulent flow is created in the enclosed space surrounded by the, and collides not only with the surface orthogonal to the direction of the cleaning liquid injection, but also with surfaces in all directions, and all residual food is washed off. In particular, the internal pressure of the container 10 and the lid 11 that has risen due to the injection of the cleaning liquid reaches the second duct floor 47 and is reduced at once, so that the cleaning liquid and the residual food are discharged to the residual food tank 48 via the second duct floor 47 at once. Therefore, a higher cleaning effect can be expected. Further, the container 10 and the lid 11 are supplied to the washing machine 50 via the carry-out conveyor 51.

[0022]

[Other Embodiments] A large number of suction cup connecting pipes are provided on the swing arm 60 at a narrow pitch, and the suction cups 62 are configured to be detachable so that the container 10 and the lid 11 have different widths or are fixed. The installation interval of the suction cups 62 can be arbitrarily set corresponding to the case where the number of the containers 10 extruded on the floor 80 at one time changes. In this case, the suction cup connecting pipe to which the suction cup 62 is not set needs to be closed with a tape or a cap. With such a configuration, it is possible to change the number of containers 10 with lids to be supplied to the transport conveyor 40 at one time, or easily cope with containers 10 having different widths. Further, the transfer conveyor 40 may be replaced by a known endless type belt conveyor in which projections are projected on the peripheral surface at regular intervals.

[0023]

Since the present invention is as described above, the following effects can be obtained.

<B> Since the work of removing the lid and the work of inverting the lid and arranging them on the conveyor can be performed automatically and continuously,
Significant labor saving and reduction of preliminary washing cost can be achieved.

<B> Not only the container but also the lid can be washed together, which is sanitary.

[Brief description of drawings]

FIG. 1 is a perspective view in which a part of a lid removing portion is omitted.

[Fig. 2] Vertical sectional view of the pre-washing device

FIG. 3 is a plan view thereof

FIG. 4 is a sectional view taken along line IV-IV in FIG.

5 is a sectional view taken along line VV of FIG.

FIG. 6 is an explanatory diagram of a drive mechanism of a swing arm.

Claims (1)

(57) [Claims] 1. A transportable to transfer by placing the container with a lid
Feeding the end of the conveyor provided bay Kyokuga id, along a curved guide by inverting the container, in the preliminary washing apparatus for cleaning by blowing the cleaning liquid in the container, a container with a lid on the upstream side of the upper surface of the conveyor tentative placed to the mounting plated formed, placing the container with a lid groups the pushing plate freely deployed forward and backward extruding the upper surface of the conveyor on plated, the developing of the upper surface side of the conveyor, sliding the cover in an upward state
An inclined plate is provided to supply the upper surface of the conveyer, and the inclined plate and the upper face of the conveyer are straddled across the conveyer.
It arranged a swinging arm reciprocating section between the negative pressure suction that can be adsorbed to the lid top surface of the container in the horizontal portion of the swing arm
A pull-type suction cup is provided, and the suction cup contacts the lid to swing the arm.
Negative pressure is generated over the section where the
The negative pressure is cut off when the lid swings to the uppermost position and the lid is inverted.
The lid removing device in the pre-washing device is characterized in that it is set as follows .