JPH01242310A - Device for automatically discharging misarranged container article out of line - Google Patents

Abstract

PURPOSE:To enable discharge without need for stopping a system in the captioned system of a flat container by detecting an unarranged container on the lower course side of an arranging machine, operating a detecting means in a conveying course to detect the passage of the unarranged article and carrying out deceleration and a discharging operation on detecting the passage. CONSTITUTION:Flat containers 8 arranged in a container arranging machine 1 are checked for the existence a container in an inverted condition by means of a first detector 7. As an inverted bottle is detected, a second detector 10 is actuated via a control unit 9 to check the passage of the inverted bottle and, on detecting the passage of the inverted bottle, it is transmitted to the control unit 9. The control unit 9 reduces the speeds of a conveyor 2 and a timing screw 3 while operates a discharge portion 11, to discharge the inverted bottle. After discharging, the speeds are restored as before. By this structure, the discharge can be carried out without need for stopping a line with a simple structure.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention is designed to prevent misaligned products, that is, inverted containers such as inverted bottles, from a container alignment machine to a subsequent process such as a filling machine during transportation by a timing screw. This relates to a system that automatically discharges waste outside the line without stopping the line.

[Conventional technology]

A container alignment system generally includes a container alignment machine and a timing screw or conveyor along the container alignment machine. Therefore, a container alignment machine is used to align containers that are in a disordered state into an upright state in preparation for the next process.

However, some bottles are not aligned and are handed over to the timing screw or conveyor in an inverted position, which causes problems in the next process.

For this reason, conventionally, a detector such as a phototube switch for detecting an inverted container is installed in each of the plurality of container dropping chutes that make up the container sorting machine, and a system is used to detect the inverted containers on the way to the dropping chute based on the detection signal of the detector. There is a system in place. In addition, even if an inverted container is detected at the downstream end of the container sorting machine, and an inverted container is only detected in the falling chute of one of the rows, the container sorting machine is immediately stopped and the container is transferred from the container sorting machine. There is a system that stops the process and removes the inverted container each time.

In addition, when conveying with a container without using a timing screw, a notch is formed in a part of the guide set upright on both sides of the container according to the medium size of the container, and this notch is used to air the fallen container. A system in which containers are discharged through a notch by ejecting water, or a guide is curved outward from the conveyor so that normal containers are routed around the conveyor via the guide, and fallen containers are allowed to go straight on the conveyor. However, there was a system in which the liquid was inserted into the container along a curved guide, and was guided by a drop guide attached to the container and discharged out of the line.

[Problems to be Solved by the Invention] However, a system in which a detector and a discharge mechanism are provided for each dropping chute of a container sorting machine is mechanically complicated and requires a correspondingly large amount of extra space because it requires a discharge system for each dropping chute. This requires a large number of parts and mechanical issues, and there are mechanical and space issues.In addition, collective control using a phototube switch at the downstream end of the container sorting machine requires that container supply be stopped each time even one inverted container is detected. Due to transport efficiency,
There was a problem.

In addition, systems that discharge inverted containers on a conveyor have a negative impact on other upright containers by interfering with the upright containers while they flow down with the conveyor, and systems that only discharge inverted containers do not necessarily have high precision. It could hardly be called an evacuation system.

Therefore, it is an object of the present invention to mechanically simplify the alignment system for flat containers such as flat bottles whose horizontal cross-sectional shape is oval or elliptical, and to discharge only inverted containers with high precision without stopping the line. The object of the present invention is to provide an automatic out-of-line ejection system for misaligned containers.

[Means to solve the problem]

The present invention provides a first detector for detecting the inverted containers when delivering the flat containers from inside the container aligning machine to a screw conveyor provided along the container aligning machine at the downstream end of the container aligning machine, Further, the inverted container is operated based on the detection signal of the first detector on the downstream side of the screw conveyor, and the flat side surface is oriented in a direction crossing the screw shafts of the screw conveyor through the container fitting groove of the screw conveyor. A second detector is disposed on the downstream side of the second detector to detect the flat side surface of the screw conveyor through the container insertion groove of the screw conveyor, which is decelerated based on the detection signal of the second detector. The above object is achieved by providing an automatic out-of-line discharge system for misaligned containers, which is equipped with a discharge section that injects air into an axially oriented inverted container and discharges it outside the screw. This has been achieved.

[Effect]

According to the present invention, at the downstream end of the container aligning machine for flat containers, the first
When the detector detects an inverted container in either alignment mechanism,
Based on this detection signal, the second detector is activated to monitor the passage of the inverted container, and when the passage of the inverted container is detected, the rotational speed of the screw is reduced and the system shifts to low-speed conveyance. On the other hand, if the inverted container is transported at a low speed, the discharge section is operated based on the detection signal from the second detector, and the inverted container that has reached the discharge section is discharged while being transported at a low speed.

〔Example〕

The present invention will be described below based on the embodiments shown in FIG. 1 and FIG. 4 +al and (bl).

FIG. 1 is a configuration diagram showing an automatic out-of-line discharge system for misaligned containers according to the present embodiment in aligning and transporting flat containers such as flat bottles having an oval or elliptical horizontal cross-sectional shape. According to the figure, timing screws 3 are disposed at the downstream end of the container aligning machine 1, respectively, along the top of the container 2 and the container 72. The container 2 and the timing screw 3 are configured to transport the containers (not shown) received from the container alignment machine 1 to the next step, for example, a filling machine. The screw conveyor consisting of the conveyor 2 and the timing screw 3 is connected to a motor 6 via a drive shaft 5, and the driving force of the motor 6 causes these two to work together to transport the containers to the filling machine 4. Although not shown, guides are provided on both sides of the conveyor 2 and the timing screw 3 to guide the conveyance of the containers.

Furthermore, in this embodiment, a first detector 7 is disposed at the lower end of the container aligning machine 1, as shown in FIG. The head is inserted up to the shoulder and can be detected by the first detector 7.

When the first detector 7 detects the inverted bottle 8, based on this detection signal, the second detector ( FIG. 3 (aL (see bl)) 10 is turned on. Therefore.

The second detector 10 is configured to operate only when the first detector 7 detects an inverted bottle 8.

When the second detector 10 is turned on, the inverted bottle 8 is always conveyed from the upstream side, so the second detector 10 reliably detects the inverted bottle 8 passing the detection position. At this detection position, the inverted bottle 8 is
(The narrow groove 8a of the screw 3 as shown in bl)
The flat sides face each other in a direction intersecting the direction of movement. Therefore, the second detector 10 can detect the inverted bottle 8 only when the distance between the second detector 10 and the bottom of the bottle 8 becomes small, and the detection signal is transmitted to the control unit 9. is configured to send to. The control unit 9 decelerates the rotation of the motor 6 by sending a deceleration command signal to the motor 6 based on this detection signal, thereby causing the conhair 2 and the timing screw 3 to operate at low speed via the drive shaft 5 to reduce the speed of the bottle 8. It is designed to reduce the movement speed of. Furthermore,
The control unit 9 sends a signal based on the detection by the second detector IO to operate the discharge section 11 disposed downstream of the second detector IO. The discharge section 11 is operated in synchronization with the time when the inverted bottle 8 passes the detection position of the second detector 10, or when it reaches the discharge section 11 after passing f5. As shown in FIG. 4, the discharge section 11 has an injection nozzle lla that injects air, and a part of the guide is tilted down in accordance with the injection of the injection nozzle 11a, and the bottle 8 is moved into the line by the jet flow from the injection nozzle lla. It is composed of a guide overturning mechanism 11b for discharging to the outside. Further, in the vicinity of the discharge portion 11, the groove 3b of the screw 3 is configured to allow the flat side surface of the bottle 8 to be transferred along the direction of movement of the bottle, thereby making it easier to receive the jet air.

Therefore, once the first detector 7 detects an inverted bottle 8, the second detector 10 is activated and detects all the inverted bottles 8 passing by, and the conveyor 2 and timing screw 3 are operated at low speed each time. Air is blown onto the inverted bottles 8 each time they reach a discharge part 11 to reliably and automatically discharge them one by one. When the discharge is completed, the line, ie the conhair 2 and the timing screw 3, are connected to the control unit 9.
The original conveyance speed is restored via .

Note that the first detector 7 and the second detector 10 used in this example
Although a phototube can be preferably used as in the conventional case, it is not limited to a phototube.

Moreover, although the discharge part 11 in the present embodiment has been described with respect to the overturning mechanism 11b that overturns the injection nozzle 11a and a part of the guide, it is of course not limited to this example.

〔Effect of the invention〕

The system for automatically discharging misaligned containers outside the line according to the present invention is mechanically simplified and can discharge only inverted containers with high precision without stopping the line.

[Brief explanation of the drawing]

Fig. 1 is a configuration diagram showing an embodiment of the out-of-line automatic discharge system for misaligned containers of the present invention, Fig. 2 is a perspective view showing the installation state of the first detector in Fig. 1, and Fig. 3 (al,
fbl is a diagram showing the installation status of the second detector;
a+ is a perspective view in the side direction, the same figure (bl is a perspective view in the front direction, FIG. 1: Container alignment machine 3: Screw] 7 (timing screw) 7; 1st detector 8: Flat container 10; 2nd detector 11: Discharge mechanism Patent applicant Kao Corporation (b)

Claims (1)

[Claims] A first detector is disposed at the downstream end of the container aligning machine to detect the inverted containers when the flat containers are delivered from inside the container aligning machine to a screw conveyor provided along the container aligning machine, and the screw conveyor A second detector is operated based on the detection signal of the first detector to detect an inverted container whose flat side surface is oriented in a direction perpendicular to the screw axis of the screw conveyor via the container fitting groove of the screw conveyor. A detector is disposed on the downstream side of the second detector, and the flat side surface is oriented in the direction of the screw axis via a container fitting groove of a screw conveyor that is decelerated based on the detection signal of the second detector. This automatic out-of-line ejection system for misaligned containers is characterized by being equipped with an ejection unit that injects air into the inverted containers and ejects them outside the screw.