JPH0811619B2 - Off-line automatic discharge system for misaligned containers - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a misaligned product during transportation by a timing screw from a container aligning machine to a subsequent process such as a filling machine,
That is, the present invention relates to a system for automatically discharging an inverted container such as an inverted bolt out of the line without stopping the line.

[Conventional technology]

The container aligning system is generally configured to include a container aligning machine and a timing screw or a conveyor along the container aligning machine. Therefore, the container aligner arranges the containers, which are in a disordered state, in an upright state in preparation for the next step. However, there are some bottles that are not aligned and are delivered to the timing screw or the conveyor in an inverted state, which will hinder the next process.

Therefore, conventionally, a detector such as a photoelectric tube switch that detects an inverted container in each of a plurality of container drop chutes constituting a container aligner, and an inverted container is discharged on the way of the drop chute based on a detection signal of the detector. There is a system. In addition, even if an inverted container is detected at the downstream end of the container aligner and the inverted container is only detected in any one row of drop chutes, the container aligner is temporarily stopped and the delivery from the container aligner is stopped. There is a system that removes the inverted container each time.

In addition, when carrying on a conveyor without using a timing screw, a notch is formed in a part of the guides installed upright on both sides of the conveyor according to the width dimension of the container, and air is added to the collapsed container at this notch. A system for ejecting through a notch, such as by jetting, or a guide is curved outward on the conveyor so that a normal container bypasses the conveyor through the guide, and a collapsed container goes straight on the conveyor. However, there has been a system in which a guide is introduced along the curved guide into the conveyor so as to be guided by a drop-in guide which is attached and discharged out of the line.

[Problems to be Solved by the Invention]

However, the system in which a detector and a discharge mechanism are arranged for each drop chute of the container aligner requires a discharge system for each drop chute, is mechanically complicated, and requires extra space and parts. There is a problem in space, and the collective management by the photoelectric tube switch at the downstream end of the container aligning machine has to stop the supply of the container every time it detects even one inverted container, and in terms of transportation efficiency, There was a problem.

In addition, a system that discharges on the conveyor does not necessarily have high accuracy as a system that discharges only the inverted container by adversely affecting other upright containers by interfering with the upright container while the inverted container flows down with the conveyor. It was hard to say an emission system.

Therefore, the object of the present invention is to simplify mechanically in an alignment system for flat containers such as flat bottles whose horizontal cross-sectional shape is an ellipse or an ellipse, and to discharge only inverted containers with high accuracy without stopping the line. An object of the present invention is to provide an out-of-line automatic discharge system for misaligned containers that can be processed.

[Means for solving the problem]

According to the present invention, a screw conveyor is provided at a downstream end of a container aligner along the container aligner, and a first detector is provided at the downstream end, and a flat container is delivered from the inside of the container aligner to the screw conveyor. At this time, the inverted container among the flat containers is detected by the first detector, and is operated on the downstream side of the screw conveyor based on the detection signal of the first detector, and the container fitting groove of the screw conveyor is detected. A second detector for detecting an inverted container whose flat side surface is oriented in the direction intersecting with the screw shaft of the screw conveyor via the, and the detection of the second detector downstream of the second detector. A discharge part is provided that injects air into the inverted container whose flat side surface is oriented in the screw axis direction through the container fitting groove of the screw conveyor that is decelerated based on the signal, and discharges it out of the screw. Is obtained by achieving the above objects by providing a line out automatic ejection system of the vessel misaligned article characterized by.

[Action]

According to the present invention, when the first detector detects the inverted container in any of the alignment mechanisms at the downstream end of the container aligning machine for the flat container, the second detector operates based on the detection signal to detect the inverted container. When passage is monitored and passage of the inverted container is detected, the rotation speed of the screw is reduced and low speed transportation is started. on the other hand,
When conveyed at low speed, the discharging unit is operated based on the detection signal of the second detector, and the inverted container that has reached the discharging unit is discharged at a low speed.

〔Example〕

The present invention will be described below based on the embodiments shown in FIGS. 1 to 4 (a) and (b).

FIG. 1 is a configuration diagram showing an out-of-line automatic discharging system for misaligned containers according to the present embodiment in aligning and transporting flat containers such as flat bottles having a horizontal cross section of an ellipse or an ellipse. According to the figure, a conveyor 2 and a timing screw 3 along the conveyor 2 are arranged at the downstream end of the container aligning machine 1. The conveyor 2 and the timing screw 3 are configured to convey the container (not shown) received from the container aligner 1 to the next step, for example, the filling machine. The screw conveyor including 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 both of them to cooperate to convey the container to the filling machine 4. Although not shown, guides for transferring and guiding the containers are provided upright on both sides of the conveyor 2 and the timing screw 3.

Further, in this embodiment, a first detector 7 is arranged at the lower end of the container aligner 1 as shown in FIG. 2, and when the inverted bottle (flat container) 8 reaches the downstream end, the bottle 8 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 located on the downstream side of the timing screw 3 via the control unit 9 and arranged on the side of the timing screw 3 ( Turn on 10 shown in FIGS. 3 (a) and 3 (b). Therefore, the second detector 10 is configured to operate only when the first detector 7 detects the inverted bottle 8. Since the inverted bottle 8 is always conveyed from the upstream side when the second detector 10 is turned on, the second detector 10 reliably detects the inverted bottle 8 that passes the detection position. At this detection position, the inverted bottle 8 is attached to the screw 3 as shown in FIGS.
The flat side surfaces are opposed to each other in a direction intersecting the moving direction via a groove formed narrowly. Therefore, the second detector 10
The inverted bottle 8 can be detected only when the distance between the second detector 10 and the bottom of the bottle 8 becomes small, and the detection signal is sent to the control unit 9. Has been done. 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, so that the drive shaft 5
The conveyor 2 and the timing screw 3 are operated at a low speed via the to reduce the moving speed of the bottle 8. Further, the control unit 9 sends a signal based on the detection of the second detector 10 to operate the discharge portion 11 arranged on the downstream side of the second detector 10. The discharge part 11 is operated so that the inverted bottle 8 passes through the detection position of the second detector 10 or is timed to reach the discharge part 11 after passing. Thus, the discharge unit 11 is
As shown in FIG. 4, a jet nozzle 11a for jetting air, and a guide tipping mechanism 11b for tipping a part of the guide according to the jet of the jet nozzle 11a and discharging the bottle 8 out of the line by the jet flow from the jet nozzle 11a. It consists of and.
Further, in the vicinity of the discharge part 11, the groove 3b of the screw 3 has the bottle 8
The flat side surface of the bottle can be transferred along the moving direction of the bottle, so that the jet air can be easily received.

Therefore, if only the inverted bottle 8 is detected by the first detector 7, the second detector 10 is activated to detect all the inverted bottles 8 passing through, and the conveyor 2 and the timing screw 3 are operated at low speed each time. Air is blown to the inverted bottles 8 reaching the discharge unit 11 each time, and the inverted bottles 8 are discharged one by one reliably and automatically. When the discharge is completed, the line, that is, the conveyor 2 and the timing screw 3 returns to the original transport speed via the control unit 9.

The first detector 7 and the second detector 10 used in this embodiment
As the above, a phototube can be preferably used as in the conventional case, but the phototube is not limited to the phototube.

Further, although the discharge unit 11 in this embodiment has described the inversion mechanism 11b which inverts the injection nozzle 11a and a part of the guide, of course, the invention is not limited to this embodiment.

〔The invention's effect〕

The automatic out-of-line discharge system for misaligned containers according to the present invention is mechanically simple and can discharge only inverted containers with high accuracy without stopping the line.

[Brief description of drawings]

FIG. 1 is a configuration diagram showing an embodiment of an out-of-line automatic discharge system for misaligned containers of the present invention, FIG. 2 is a perspective view showing a mounting state of the first detector in FIG. 1, and FIG. a),
(B) is a view showing a mounting state of the second detector, (a) is a side perspective view, (b) is a front perspective view, and (a) and (b) of FIG. Is a diagram showing a discharge part, FIG. 7 (a) is a plan view, and FIG. 4 (b) is a front view. 1: Container aligner 3: Screw conveyor (timing screw) 7: First detector, 8: Flat container 10: Second detector, 11: Ejection mechanism

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification code Internal reference number FI technical display location B65G 47/256

Claims (1)

[Claims] 1. A screw conveyor is provided at the downstream end of the container aligning machine along the container aligning machine, and a first detector is arranged at the downstream end of the container aligning machine, and a flat container is provided from the inside of the container aligning machine to the screw conveyor. At the time of delivery, the inverted container of the flat containers is detected by the first detector, and operated on the downstream side of the screw conveyor based on the detection signal of the first detector to insert the container of the screw conveyor. A second detector for detecting an inverted container whose flat side surface is oriented in the direction intersecting with the screw shaft of the screw conveyor through the groove is arranged, and the second detector is provided downstream of the second detector. A discharge part was installed that injects air into the inverted container whose flat side surface is oriented in the screw axis direction through the container fitting groove of the screw conveyor, which is decelerated based on the detection signal, and discharges it out of the screw. Out-of-line automatic ejection system of the vessel misaligned article characterized and.