JPS6323993Y2 - - Google Patents

Description

[Detailed Description of the Invention] ``Field of Application of the Invention'' This invention mainly relates to an apparatus for cleaning containers and the like for transporting various articles by spraying a cleaning liquid while conveying them by a conveyor.

"Conventional technology, problems to be solved" In general, in order to reliably remove stubborn dirt with this type of cleaning equipment, cleaning liquid is applied to the object to be cleaned under high pressure intensively for as long as possible. It is desirable to do so.

However, in conventional washing machines, the nozzle that sprays the cleaning liquid is fixedly installed in the cleaning chamber, so in order to apply the cleaning liquid to the object being cleaned for a long time, a distributed nozzle that sprays the cleaning liquid over a wide area is used. The number of nozzles must be increased along the direction of transfer of the object to be cleaned, or the speed of transfer of the object to be cleaned must be slowed down. However, with spray type nozzles, the spraying pressure of the cleaning liquid is weaker, making it difficult to remove stubborn dirt. In addition, increasing the number of nozzles requires increasing the number of pipes for pumping the cleaning liquid and increasing the pump pressure, which increases the manufacturing cost of the device and also slows down the transfer speed of the object to be cleaned. Then there is the problem that the effect is poor.

``Means for solving problems'' This invention aims to solve the above-mentioned conventional problems.
By configuring the cleaning liquid injection nozzle to move forward and backward along the conveyor, and by increasing the speed of the forward and backward movement when moving forward in the running direction of the conveyor and slowing it down when moving backward in the opposite direction, the cleaning liquid is transferred by the conveyor. A cleaning device is proposed in which the relative speed between the object to be cleaned and the nozzle is adjusted so that the cleaning liquid is applied to the object for as long as possible.

``Example'' Below, an example of this invention shown in the drawings will be described. In the cleaning chamber 2 of the washing machine main body 1, an object W to be cleaned such as a container such as a transportation basket is transferred from an inlet 3 to an outlet 4. A conveyor 5 is installed.

A liquid feeding pipe 7 is provided near the outlet side of the cleaning chamber 2 and extends from the lower cleaning liquid pressure pump 6 to the side of the conveyor 5, and extends horizontally along the running direction of the conveyor 5 at its tip. A cleaning liquid supply pipe 8 is connected.

A cleaning liquid outlet 9 is provided in the middle of the supply pipe 8, and an introduction pipe 10 is provided on the outer periphery of the supply pipe 8, which covers the outlet 9 and is fitted so as to be movable back and forth. closely to the outer periphery of the supply pipe 8,
The inner peripheral surface of the intermediate portion and the outer peripheral surface of the supply pipe 8 are fitted with a predetermined gap maintained therebetween.

The introduction pipe 10 has one or more nozzle pipe frames 11, each of which is constructed by assembling pipe bodies into a frame shape of a predetermined shape such as a rectangle, and is connected to the introduction pipe 10 at one or more parts so as to communicate with the introduction pipe 10. The nozzle tube frame 11 has a plurality of injection nozzles 1 on the inner peripheral surface of the upper, lower, left and right parts thereof.
2 is attached facing inward. The nozzle tube frame 11 is arranged from below the upper running part of the conveyor 5 so as to surround the transfer path for the object W to be cleaned, and is slidable on a guide rail 13 fixed at a predetermined position in the cleaning chamber at a part of the nozzle tube frame 11. Supported.

In addition, as the injection nozzle 12, it is desirable to use a concentrated injection type nozzle that prevents the injection flow from spreading as much as possible.

Further, an outlet pipe 14 is connected to the inlet pipe 10 so as to communicate with the inside thereof, and a shaft pipe 15 is connected to the tip thereof horizontally in the running direction of the conveyor 5, and a rotating nozzle body is connected to this shaft pipe 15. 16 is rotatably supported.

The rotating nozzle body 16 is a hollow annular body rotatably attached to the outer periphery of the spindle tube 15 via a bearing, and its inner peripheral surface slides onto an arc-shaped distributed water guide portion 17 fixed to the spindle tube 15. They are configured to rotate in contact with each other. A plurality of concentrated injection type injection nozzles 18 are installed on the outer periphery of the rotating nozzle body 16 at a predetermined angle so as to apply a rotational moment to the rotating nozzle body 16 with their injection force. Flow path 19 between 18 and the inner peripheral surface
is provided.

The distributed water guide section 17 connects a predetermined wide-angle opening 21 communicating with the outlet 20 of the spindle pipe 15 to the rotating nozzle body 16.
The rotary nozzle body 16 is provided opposite to the sliding inner circumferential surface of the
When any one of the flow passages 19 communicates with the opening 21, the cleaning liquid flowing from the spindle pipe 15 is passed through the flow passage 19.
It is configured to eject from the injection nozzle 18 through.

Therefore, while each spray nozzle 18 receives the cleaning liquid in the angular range of the opening of the distributed water guide section 17, the rotating nozzle body 16 continuously rotates while spraying the cleaning liquid within a predetermined angular range, and is covered with the cleaning liquid. The spray is continuously moved in the width direction of the conveyor 5 toward the bottom surface of the object W to be washed.

A fast-feeding, slow-returning drive mechanism 22 is connected to the introduction pipe 10, which moves it forward and backward together with the nozzle tube frame 11, so that when moving forward in the running direction of the conveyor 5, it moves at a faster speed than the conveyor 5, and when moving in the opposite direction. When retracting, it moves at a slower speed than that, and the relative speed with the moving speed of the object W to be cleaned is adjusted.

Various power transmission mechanisms can be employed as such a fast-forwarding, slow-returning drive mechanism, and for example, in the embodiment shown in FIG. 1, a swinging link mechanism is employed. In FIG. 1, a link lever 23 whose lower end is rotatably pivoted is provided with an elongated hole 24 in its longitudinal direction.
A protruding roller pin 27 is engaged with a rotating body 26 which is rotated in the direction of the arrow around a horizontal axis by a link lever 23, and a link arm 28 is connected between the upper end of the link lever 23 and the introduction pipe 10. ing.

Therefore, when the roller pin 27 rotates around the upper half of its rotation center due to the rotation of the rotating body 26, the link lever 23 is rotated at the upper part where the distance of movement is large, and the link lever 23 is rotated to connect the introduction pipe via the link arm 28. 10 is moved backward, and when the roller pin 27 rotates around the lower half of its rotation center,
The introduction tube 10 is moved forward by rotating the link lever 23 at the lower part where the distance of movement is small, and as a result, the movement speed of the introduction tube 10 becomes faster when moving forward, and becomes slower when moving backward.

Another example of the fast-forwarding and slow-returning drive mechanism 22 is the third one.
As shown in the figure, an endless chain that changes the running speed in parallel straight running sections can be used. In Figure 3, the front and rear sprockets 2
The endless chain 30 wound around 9 and 29 is the introduction pipe 1.
A part of this endless chain 30 and the introduction pipe 10 are rotatably connected at both ends via a connecting member 31 such as a link arm. It is configured to move the introduction tube 10 back and forth by rotating.

Position detectors 32, 32 such as limit switches are provided at the forward and backward moving end of the introduction pipe 10 or at both ends of the endless chain 30, for detecting both ends of the introduction pipe 10 or the connecting end of the connecting member 31 connected to the endless chain 30. When the position detector 32 at the most advanced position of the introduction pipe 10 is activated, the running speed of the endless chain 30 is slowed down by speed conversion of the variable speed motor or speed reducer, and the position detector 32 at the most retracted position of the introduction pipe 10 is activated. is configured to increase the running speed of the endless chain 30 by speed conversion of the variable speed motor or speed reducer when the motor is operated.

Therefore, by switching the running speed of the endless chain 30 by the front and rear position detectors 32, 32,
When the introduction tube 10 moves forward, its moving speed is fast, and when it retreats, it moves slowly.

Note that the above-mentioned fast-forwarding/slow-returning drive mechanism 22 may be connected to the nozzle tube frame 11.

"Operation of the invention" When cleaning, the pump 6 is operated to forcefully feed the cleaning liquid to the liquid sending pipe 7, the supply pipe 8, the outlet 9, and the inlet pipe 10.
6 and inject from the injection nozzle 12 and the injection nozzle 18, and at the same time actuate the fast forward and slow return drive mechanism 22 to continuously advance and retreat the nozzle tube frame 11 and the rotary nozzle body 16 together with the introduction pipe 10.

When the object W to be cleaned is placed on the conveyor 5 and transferred forward in this state, the nozzle tube frame 11 and the injection nozzle 12 of the rotating nozzle body 16 continuously move forward and backward.
By continuously and concentratedly spraying the cleaning liquid from the spray nozzle 18, all the inner and outer surfaces of the object W to be cleaned are repeatedly cleaned multiple times to be uniformly cleaned.

In this case, the injection nozzle 12 and the injection nozzle 18
Because it moves faster than the object W to be cleaned when moving forward together with the nozzle tube frame 11 and the rotating nozzle body 16,
By continuously spraying the cleaning liquid over the entire surface of the object to be cleaned for a long time, and because it moves slowly when retreating, the relative speed to the moving speed of the object to be cleaned becomes slow, and the object to be cleaned also remains for a relatively long time. The cleaning liquid is continuously sprayed over the entire surface of W. Furthermore, while the injection nozzle 12 continuously injects the cleaning liquid onto the object W to be cleaned in the direction of movement thereof, the injection nozzle 18 continuously injects the cleaning liquid in the direction perpendicular to the movement direction of the object W to be cleaned. Because of this, the injection nozzle 12 can reliably clean surfaces that would otherwise be blind spots, and the vertical and horizontal jets of cleaning liquid from both sides can more evenly and reliably clean the interior surfaces of containers, etc., which have a lot of dirt and are firmly attached. It becomes possible to do so.

Note that the above-mentioned cleaning liquid is used for rinsing through finishing cleaning nozzles 33 and 34 installed at the rear of the cleaning chamber 2.

"Effects of the invention" As described above, according to this invention, a nozzle tube frame that surrounds the object to be cleaned transferred by the conveyor in the cleaning chamber and sprays the cleaning liquid around it is installed so as to be able to move forward and backward along the running direction of the conveyor. Since the nozzle tube frame is configured to be moved forward in the forward direction of the conveyor faster than the traveling speed of the conveyor by a fast-feeding and slow-return drive mechanism, and to be moved back in the opposite direction to the forward direction of the conveyor slower than the forward speed, When the spray nozzle moves forward together with the nozzle tube frame, it moves faster than the object to be cleaned, allowing the cleaning liquid to be sprayed continuously over the entire surface of the object for a long time, and when it moves back, it moves slowly to prevent the transfer of the object. By slowing down the relative speed, the cleaning liquid can be continuously sprayed over the entire surface of the object for a relatively long time even when reversing.

As a result, the cleaning liquid is repeatedly sprayed onto the object being cleaned for a long period of time, reliably removing firmly attached dirt and achieving uniform and complete cleaning. In addition, the cleaning liquid pressure delivery piping can be constructed extremely simply, and high-pressure cleaning liquid can be delivered with a single pump, thereby increasing the spray pressure from the nozzle and improving the cleaning effect.

[Brief explanation of drawings]

Fig. 1 is a longitudinal sectional side view showing an embodiment of this invention;
2 is a longitudinal sectional front view of the same, FIG. 3 is a longitudinal sectional side view of the rotary nozzle body according to this invention, FIG. 4 is a longitudinal sectional front view of the same, and FIG. FIG. 2 is a schematic diagram showing an example. 1...Cleaning device, 2...Cleaning chamber, 5...Conveyor, 11...Nozzle tube frame, 12...Injection nozzle,
22...Fast forward/slow return drive mechanism, W...Object to be cleaned.

Claims (1)

[Scope of utility model registration request] A nozzle tube frame is installed in the cleaning chamber so that it can move forward and backward along the running direction of the conveyor, surrounding the object to be cleaned that is transferred by the conveyor and spraying cleaning liquid around it.
The nozzle tube frame is configured to move the nozzle tube frame forward in the forward direction of the conveyor faster than the traveling speed of the conveyor, and to move the nozzle tube frame backward in the opposite direction to the forward direction of the conveyor at a speed slower than the forward speed. A cleaning liquid injection type automatic cleaning device characterized by: