JPS63178986A - Vessel washer - 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 "Industrial Application Field" The present invention relates to a container washing device, and more particularly to a container washing device that washes containers while moving to follow containers conveyed by a holder.

``Prior art J'' Conventionally, a container washing device includes a holder that holds and transports a container, a washing nozzle that sprays a washing liquid toward the container held in the holder, and a washing nozzle that is used to transport the container. There are known devices equipped with a reciprocating mechanism that reciprocates along the direction.

The reciprocating mechanism cleans the containers by reciprocating the cleaning nozzle into a follow-up stroke in which cleaning liquid is sprayed while following the container carried by the holder, and a return stroke in which the cleaning nozzle returns to its original position. It has become.

[Problems to be Solved by the Invention] However, in conventional container washing devices, when the washing nozzle is made to follow the container, it is usually positioned at the center of the mouth of the container and moved at the same speed as the container. As a result, the position of the cleaning nozzle relative to the container remains substantially constant. As a result, especially in the case of preliminary cleaning in which a container to which mud or the like has adhered is first washed, it has been insufficient to spray the cleaning liquid directly over the entire container to remove the mud or the like.

In view of such circumstances, the present invention provides a reciprocating mechanism for reciprocating the cleaning nozzle along the conveying direction of the container, so that the cleaning nozzle is not moved toward the container during the following process. It is designed to be displaced relative to the object.

"Operation" According to such a configuration, the cleaning nozzle is displaced relative to the container during the follow-up stroke, so that the cleaning liquid sprayed from the cleaning nozzle can be directly sprayed onto each part of the container. Wash the whole thing evenly? I will be able to do things like I11.

``Embodiment'' The present invention will be described below with reference to the illustrated embodiment. In FIG. 1, containers 1 are each held in a holder 2 in an inverted state and spaced apart from each other at a constant interval in the transport direction. As the washing machine moves in the direction of the arrow 2, it is transported from the pre-washing section A to the main washing section B at a constant speed V.

The main washing section B is for spraying high temperature washing liquid onto the container 1 carried by the holder 2 to completely wash the inside of the container 1. A movable frame 3 is provided below the container 1 so as to be movable back and forth along the moving direction thereof, and a plurality of main washing nozzles 4 are provided on the upper surface of the movable frame 3 at intervals corresponding to the intervals between the containers 1.

One end of a drive rod 5 is pivotally connected to the moving frame 3, and the other end of this drive rod 5 is a support Ilj! It is pivotally connected to one end of a swinging arm 7 that is swingable about h6. Then, the cam follower 8 attached to the other end of the swing arm 7 is engaged with a cam groove 98 formed on the end face of the disc cam 9, and the disc cam 9 is driven by the drive shaft 10 into the holster 2.
By rotating at a constant speed in synchronization with the movement of the container 1, the moving frame 3 can be reciprocated in synchronization with the movement of the container 1.

In the pre-washing section A, pre-washing liquid at a predetermined temperature is injected onto the container 1 conveyed by the holter 2, and the pre-washing liquid is sprayed onto the container 1.
This is for pre-washing the inside and outside of the container 1 and at the same time preheating the container 1 in preparation for washing with high-temperature washing liquid in the next main washing section B. Also in this pre-washing section A, the movable frame 15 is attached to the holder 2. A plurality of pre-washing nozzles 16 are provided on the upper surface of the moving frame 15 at a lower position so as to be movable back and forth along the conveying direction of the containers 1, and at intervals corresponding to the intervals between the containers 1.

The movable frame 15 of the pre-washing section A is connected to the movable frame 3 of the main washing section B via a connecting means 17 so that the movable frame 15 of the pre-washing section A operates in opposite directions, for example, when the movable frame 3 of the main washing section B is moved forward. The movable frame 15 of the pre-washing section A is moved backward.

The connecting means 17 includes a swinging arm 19 arranged between the two moving frames 3.15 and swingable about a support shaft 18, and a swinging arm 19 arranged horizontally with one end connected to the main washing section B. A connecting rod 20 is pivotally connected to the moving frame 3, and the other end is pivotally connected to one end of the swing arm 19, and the connecting rod 20 is arranged parallel to the connecting rod 20, and one end is connected to the movement of the preliminary cleaning section A. The connecting rod 21 is pivotally connected to the frame 15, and the other end of the connecting rod 21 is pivotally connected to the other end of the swing arm 19.

In this embodiment, the ratio of the distance I11 between the support shaft ta and the connecting rod 20 and the distance IL2 between the support 118dl18 and the connecting rod 21 is set to 2:1, 20 is reciprocated, the connecting rod 21 is reciprocated in the opposite direction via the swing arm 19, and at the same time, the reciprocating stroke amount and speed of the connecting rod 21 and the moving frame 15 are changed. It is made to be l/2 compared to that of 3.

Next, the movable frames 3.15 are moved back and forth once by one rotation of the disk cam 9, and at this time, the above-mentioned The cam groove 9a of the disc cam 9 is set to a required cam curve.

FIG. 2 shows the relationship between the rotational angular position of the disc cam 9 and the moving position of the movable frame 3 and therefore the main washing nozzle 4 in the main washing section B. The movable frame 3 is at its retreating end position. As the disc cam 9 rotates at a constant speed, the container is moved forward at a speed V that is the same as the transport speed (2) of the container. At this time, the main washing nozzle 4 provided on the movable frame 3 is moved forward one step following the container 1 while being located at the center of the mouth of the container 1 in an inverted state.

When the movable frame 3 reaches the forward end, the movable frame 3 is moved back to the backward end at high speed. , the ratio of the time for the return stroke in which the moving frame 3 returns from the forward end to the backward end is approximately 7:3.

In this way, in the main washing section B, the follow-up stroke time is set longer than the return stroke time, and the main washing nozzle 4 remains at the center of the mouth of the container 1 during the follow-up stroke. Since it follows and moves forward, especially the container l.
The inside of the can be thoroughly washed.

FIG. 3 shows the rotational angular position of the disc cam 9 in the pre-wash section A and the position of the moving frame 15 and therefore the pre-wash nozzle 16.
This shows the moving position of and the relationship between the two. As mentioned above, the movable frame 15 operates in the opposite direction to the movable frame 3, so when the movable frame 3 is moved forward from its backward end position with the rotation of the disc cam 9, the movable frame 15 moves to the backward end position. It is now moved backward from the position toward the forward end position at a constant speed.

Then, the pre-washing nozzle 16 provided on the moving frame 15 is moved across the container 1 being conveyed above from the side of the container to the rear, so that the outside and inside of the container 1 are washed. It becomes like this. At that time, the moving frame 15
Since the pre-cleaning nozzle 16 is retracted over time at a slower speed than when it is advanced, the pre-washing nozzle 16 takes a relatively long time from the front to the rear with respect to the container 1 compared to a case where the retraction speed is fast. Therefore, the outside and inside of the container 1 can be washed well.

Next, when the moving frame 15 reaches the backward end, this moving frame 1
5 is advanced in synchronism with the container 1, or in this case, the movable frame 15 is not moved at the same speed as the container 1, but is advanced while being displaced relative to the container 1.

In this embodiment, when the preliminary cleaning nozzle 16 provided on the moving frame 15 is retreated to the retreating end position, the preliminary cleaning nozzle 16 is positioned on the rear side beyond the center of the container 1. From that state, the cleaning nozzle 16
begins to advance.

In FIG. 3, the symbol d means a width corresponding to the diameter of the container 1, and the pre-washing nozzle 16 is advanced at a speed faster than the transport speed V of the container 1, so that the pre-washing nozzle 16 is It is displaced relative to the container 1 from the rear side to the rear side. And when it comes to the advance end of the pre-washing nozzle 16,
As the container 1 moves forward, the pre-washing nozzle 16 is again displaced relative to the container 1 from its surface toward the rear, and the above-mentioned retreat of the pre-washing nozzle 16 is started.

Therefore, in the follow-up stroke in which the pre-washing nozzle 16 is advanced, the pre-wash nozzle 16 is moved relative to the container 1 so that it is swung after it has been swung, and therefore, in addition to the above-mentioned return stroke, in this follow-up stroke Also, the outside and inside of the container 1 can be washed well.

Note that, as shown in FIG.
73, so the return stroke is 2/3 of the total stroke. In other words, the following stroke of the main washing nozzle 4 is 2/3 of the total stroke, and the return stroke is 1/3 of the total stroke.
Therefore, if the forward speed of the main washing nozzle 4 in the follow-up stroke is made to match the container conveyance speed V, the return speed of the main washing nozzle 4 in the return stroke will be doubled.

The pre-washing nozzle 16 is linked to the main-washing nozzle 4 so that its speed is 1/2, so if the return speed of the main-washing nozzle 4 is 2. The uniform advance speed in the stroke is the container conveyance speed V
matches.

Furthermore, as understood from the above explanation, the following stroke of the main washing nozzle 4 is the return stroke of the pre-washing nozzle 16, so the cam curve of the disc cam 9 controls the operation of the following stroke of the main washing nozzle 4. On the other hand, since the follow-up stroke of the pre-wash nozzle 16 is the return stroke of the main-wash nozzle 4, in this case, the follow-up stroke of the pre-wash nozzle 16 is It is set to meet the required conditions with a focus on operation.

Further, in the above embodiment, only the preliminary cleaning nozzle 16 is displaced relative to the container 1 during its follow-up stroke, but it goes without saying that the main cleaning nozzle 4 can also be set in the same manner. Further, in the above embodiment, a disk cam is used as a reciprocating mechanism for causing the cleaning nozzle to perform such an operation, but the invention is not limited to this. For example, the moving frame can be moved at the same speed as the container using a cam mechanism or the like. At the same time, the cleaning nozzle may be moved face to face and/or to the left or right by a cylinder device or solenoid provided on the moving rod, thereby displacing the cleaning nozzle relative to the container.

"Effects of the Invention" As described above, in the present invention, the cleaning nozzle, like the pre-cleaning nozzle 16, is displaced relative to the container during the follow-up process, so that the entire container is cleaned compared to the conventional method. The effect of being able to wash evenly can be obtained.

[Brief Description of the Drawings] Fig. 1 is a side view showing one example of the present invention, and Fig. 7g2 shows the rotation angle position of the disc cam 9 and the movement position of the main washing nozzle 4 in the main washing section B. FIG. 3 is a diagram showing the relationship between the rotation angle position of the disc cam 9 and the movement position of the pre-washing nozzle 16 in the pre-washing section A.

Claims (1)

[Claims] A holder for holding and transporting a container, a cleaning nozzle for spraying a cleaning liquid toward the container held by the holder, and a reciprocating mechanism for reciprocating the cleaning nozzle along the transport direction of the container. , a container in which the container is cleaned by reciprocating the cleaning nozzle using the reciprocating mechanism into a follow-up stroke in which cleaning liquid is sprayed while following the container carried by the holder, and a return stroke in which the cleaning nozzle is returned to its original position. A container washing device, wherein the reciprocating mechanism displaces the washing nozzle relative to the container during the follow-up stroke.