JP3539593B2 - Bad container discharge device - Google Patents

Description

[0001]
[Industrial applications]
The present invention relates to a defective container discharging device, and more particularly, to a defective container discharging device configured to discharge a defective container by a reject device.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, as a defective container discharging device, a conveying means for conveying a container at a predetermined pitch, a reject device for discharging a defective container conveyed by the conveying device to the outside at a reject position, and a defective container discharged by the reject device And a defective container receiving device for receiving the same (Japanese Patent Publication No. 51-46947).
The defective container receiving device includes a disk-shaped rotary table, and a guide disposed and fixed outside the rotary table, for preventing a defective container from dropping from the rotary table. The defective container discharged from the rotary table is discharged onto the rotary table and temporarily stocked.
[0003]
[Problems to be solved by the invention]
However, the conventional rotary table has a flat surface and the defective container is simply discharged onto the rotary table. Therefore, when the container is damaged or the capping is incomplete and the container is discharged as a defective container, the filling liquid overflows and the subsequent processing becomes complicated.
The present invention has been made in view of such circumstances, and provides a defective container discharge device that can prevent a container from falling over by holding a defective container discharged by a reject device from both sides thereof. .
[0004]
[Means for Solving the Problems]
That is, according to the present invention, in the above-described conventional defective container discharging device, the defective container receiving device is provided with a receiving table rotated in synchronization with the transporting means and a radial direction of the receiving table, and the reject device is provided. Holding means for receiving the discharged defective container and holding the defective container between both sides.
The holding means may include a guide groove provided in a radial direction of the receiving table, and a pair of holding members provided on both sides of the guide groove and holding the defective container from both sides.
[0005]
[Action]
According to the above configuration, the defective container conveyed by the conveying means is discharged to the outside from the normal line by the reject device, and the defective container is delivered to the holding means of the receiving table rotated in synchronization with the conveying means. Will be done. Then, since the holding means holds the defective container by sandwiching it from both sides, the container can be prevented from falling over.
[0006]
【Example】
In the following, the present invention will be described with reference to the illustrated embodiment. In FIG. 1, the container 2 continuously conveyed on the supply conveyor 1 is synchronized with the rotation of the supply star wheel 3 by a timing screw (not shown), and at the receiving position E1. It is received by the supply star wheel 3. The supply starwheel 3 constitutes a part of a rotary capper 4 as a rotary processing device, and the container 2 conveyed counterclockwise by the supply starwheel 3 is provided at the supply position E2 by the supply starwheel. 3 are sequentially carried into a rotating body 5 rotated in synchronization with the rotating body 3.
The rotator 5 holds and fixes a capping head 6 serving as a processing head for capping a cap on the container 2 at an outer peripheral portion of the rotary member 5 at equal intervals, similarly to a conventionally known rotary capper. And the like. The container 2 whose cap is capped by the rotary capper 4 is transferred to a discharge starwheel 7 rotating in synchronization with the rotating body 5 at a discharge position E3, and further transferred from the discharge starwheel 7 to a discharge position E4. The paper is discharged onto the conveyor 8.
As described above, the rotary capper 4 includes the supply starwheel 3, the rotating body 5, and the discharge starwheel 7, and in the present embodiment, the discharge starwheel 7 is a transport unit that transports the container 2 at a predetermined pitch. Is composed.
[0007]
As shown in FIG. 2, the discharge star wheel 7 includes a rotating shaft 10 that is driven in synchronization with a rotating body 5 in synchronization with a driving source (not shown), and an upper rotating member mounted on an upper portion of the rotating shaft 10. 11 and a lower rotating member 12 provided below the upper rotating member 11, and pockets 11 a and 12 a for accommodating the container 2 are respectively provided at equal intervals on the outer peripheral portion of the upper rotating member 11 and the lower rotating member 12. Has formed.
Also, the container 2 is held outside the discharge star wheel 7 from the discharge position E3 to the discharge position E4 in the pockets 11a and 12a of the upper rotating member 11 and the lower rotating member 12 by abutting on the container 2. A pair of upper and lower guides 14 are provided (see FIG. 1), and the container 2 held in the pockets 11a and 12a is separated from the inside of the pockets 11a and 12a at the discharge position E4 and is transferred onto the transport conveyor 8. It has become.
[0008]
Next, the reject device 15 for discharging the defective container 2 'generated by the rotary capper 4 from the normal line to the outside will be described. The reject device 15 is provided on the discharge star wheel 7, and the rotary capper 4 is provided. Is activated by a signal from a capping failure detecting means 16 provided on the downstream side. The reject device 15 has a mounting plate 17 provided integrally between the upper rotating member 11 and the lower rotating member 12, and provided on the outer peripheral portion of the mounting plate 17 at the same position as the pockets 11a and 12a. Suction cup 18. A negative pressure passage 19 communicating with each suction cup 18 is drawn out of the discharge star wheel 7 via a rotary joint (not shown), and each of the negative pressure passages 19 connects the negative pressure passage to a negative pressure source or the atmosphere. It is connected to a flow path switching valve 20 to be communicated. Each of the flow path switching valves 20 is controlled so as to switch its flow path by a control device 21. The control device 21 controls a signal from the capping failure detection means 16 and a rotational position of the discharge star wheel 7 to be controlled. When a signal is input from the rotational position detecting means 22 such as a rotary encoder to be detected, and the position of the defective container in the pocket 11a, 12a is calculated, the signal is input to the flow path switching valve 20 at that position. Thus, the negative pressure passage 19 communicates with a negative pressure source.
Therefore, if the defective container 2 ′ is sucked by the suction cup 18, it is possible to prevent the defective container 2 ′ from being moved from the discharge position E 4 onto the transport conveyor 8 which is a normal line, The defective container 2 'can be discharged from the normal line to the outside at the discharge position E4, that is, the reject position E4. Then, the defective container 2 ′ is sucked by the suction cup 18 and the guide 23 (FIG. 1) provided on the outer peripheral side of the discharge starwheel 7 between the reject position E 4 and the transfer position E 5 downstream from the reject position E 4. As a result, the sheet is transported to the delivery position E5, and is delivered to the defective container receiving device 24 at the delivery position E5.
[0009]
As shown in FIG. 3, the defective container receiving device 24 includes a receiving table 25 that is rotated by a driving source (not shown) in synchronization with the discharge star wheel 7. A thin mounting disk 26 to be mounted and a holding disk 27 having substantially the same diameter and a large thickness as the mounting disk 26 are integrally provided.
A guide groove 27a having a width slightly larger than the diameter of the defective container 2 'is formed in the holding disk 27 in the radial direction, and a pair of each of the pair of holding the container 2 from both sides of each guide groove 27a. A holding member 28 is provided. Each of the holding members 28 includes a sponge 30 and a smooth sheet member 31 having a small coefficient of friction provided on the surface of the sponge 30 so that the defective container 2 ′ comes into contact with the sheet member 31.
In the illustrated embodiment, the guide grooves 27a are provided in the same number as the capping heads 6 of the rotary capper 4, and each guide groove 27a and the capping head 6 correspond to a 1: 1 relationship, that is, a specific number. The rotating body 5 and the receiving table 25 are rotated synchronously so that the defective container 2 'generated from the capping head 6 is always supplied to the corresponding guide groove 27a.
Further, on the outer periphery of the holding disk 27 constituting the receiving table 25, a pushing guide 32 is provided so as to surround the holding disk 27. The pushing guide 32 is located outside the holding disk 27 at the delivery position E5. However, the receiving table 25 is provided so that the inner edge thereof gradually bites into the holding disk 27 in the rotation direction of the receiving table 25. Then, at a position where the periphery of the receiving table 25 is rotated once, the inner edge of the pushing guide 32 can push one defective container 2 ′ into the inner side of the guide groove 27 a by one.
On the outer peripheral surface of the holding disk 27, a groove 27b is formed in the circumferential direction to avoid interference with the pushing guide 32. The pushing guide 32 is provided at a position that does not interfere with the upper rotating member 11, the lower rotating member 12, the mounting plate 17, the guide 23, and the like.
[0010]
In the above configuration, the container 2 whose cap is capped by the rotary capper 4 is inspected by the defective capping detecting means 16 to determine whether or not correct capping has been performed.
Then, when the capping defect is detected by the capping defect detection means 16, the signal is input to the control device 21. Then, the control device 21 which has received the above signal reads the rotational positions of the rotating body 5 and the discharge star wheel 7 from the rotating body position detecting means 22, and determines in which pocket 11a, 12a the defective container 2 'is stored. Is calculated.
Further, upon detecting from the signal from the rotating body position detecting means 22 that the defective container 2 ′ has been accommodated in the discharge starwheel 7, the control device 21 inputs a signal to the corresponding flow path switching valve 20 to input a negative pressure. The passage 19 communicates with a negative pressure source. As a result, the defective container 2 'is adsorbed by the suction cup 18, so that the defective container 2' is discharged to the outside from the reject position E4 in that state.
[0011]
If the defective container 2 ′ exceeds the reject position E4, the control device 21 switches the flow path of the flow path switching valve 20 before the defective container 2 ′ reaches the delivery position E5, and switches the negative pressure passage 19 to the atmosphere. Since the communication is established, the suction of the defective container 2 'by the suction cup 18 is released.
As a result, the defective container 2 ′ whose suction has been released is conveyed along the guide 23, and is then accommodated in the guide groove 27 a of the holding disk 27 at the delivery position E 5 where the guide 23 has been completed, and the pushing guide 32 is moved. The defective container 2 ′ is engaged with the outside of the defective container 2 ′ in the guide groove 27 a, and the defective container 2 ′ is delivered from the discharge star wheel 7 to the defective container receiving device 24. At this time, the defective container 2 'is held by the holding members 28 provided on both sides of the guide groove 27a, so that the defective container 2' does not fall. Further, the defective container 2 ′ housed and held in the guide groove 27a is gradually pushed inward in the radial direction by the pushing guide 32 as the receiving table 25 rotates, and the defective container 2 ′ When 'is again located at the delivery position E5, it has been moved inward in the radial direction by one defective container 2'.
Further, in this embodiment, as described above, the guide grooves 27a are provided in the same number as the capping heads 6 to maintain the respective guide grooves 27a and the capping heads 6 in a 1: 1 relationship. The occurrence state of the capping failure in each capping head 6 can be easily grasped from the number of the defective containers 2 ′ stored in the head.
[0012]
In the above embodiment, the rotary capper 4 is used as the container processing apparatus. However, the present invention is not limited to this, and it goes without saying that a rotary filling machine or the like may be used. Further, in the above embodiment, the discharge star wheel 7 constitutes a conveying means for conveying the container 2 at a predetermined pitch. However, the present invention is not limited to this, and is described in JP-B-51-46947 described above. As described above, a conveying means for conveying the containers at a predetermined pitch by the conveyor and the screw may be configured.
Further, in the above-described embodiment, the reject device 15 is configured to prevent the defective container 2 ′ from being sucked by the suction cups 18 provided on the discharge star wheel 7 and moved to the transport conveyor 8, but is limited to this. Instead, for example, a large number of grippers may be provided on the discharge star wheel 7 instead of the suction cup 18 so as to grip the defective container 2 '. In the above embodiment, the guide grooves 27a are provided in the same number as the capping heads 6 to maintain the guide grooves 27a and the capping heads 6 in a 1: 1 relationship. However, the present invention is not limited to this. Of course, the number of the grooves 27a may be different from the number of the capping heads 6.
[0013]
【The invention's effect】
As described above, according to the present invention, it is possible to prevent a defective container discharged by a reject device from falling over, thereby preventing damage to the container and overflow of the filling liquid in the container. The effect is obtained.
[Brief description of the drawings]
FIG. 1 is a plan view showing one embodiment of the present invention.
FIG. 2 is a sectional view showing a configuration of a reject device 15;
FIG. 3 is an enlarged view of a main part of the defective container receiving device 24.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 2 ... Container 2 '... Defective container 4 ... Rotary capper 15 ... Rejecting device 16 ... Defective capping container detecting means 21 ... Control device 22 ... Rotating body position detecting means 24 ... Defective container receiving device 25 ... Receiving table 26 ... Mounting circle Plate 27: holding disk 27a: guide groove 27b: groove 28: holding member 30: sponge 31: sheet member 32: pushing guide

Claims (5)

A transport unit that transports the containers at a predetermined pitch, a reject device that discharges the defective container transported by the transport unit to the outside at a reject position, and a defective container receiving device that receives the defective container discharged by the reject device. In the equipped defective container discharge device,
The defective container receiving device, a receiving table that is rotated in synchronization with the transporting means, provided in the radial direction of the receiving table, while receiving the defective container discharged by the reject device, the defective container from both sides A defective container discharging device, comprising: a holding means for sandwiching and holding the defective container. The said holding | maintenance means is provided with the guide groove | channel provided in the radial direction of the receiving table, and a pair of holding members provided in both sides of this guide groove | channel, and holding the said defective container from both sides and holding it. 2. The defective container discharging device according to 1. A push guide is provided outside the receiving table so as to surround the receiving table and abuts against a defective container conveyed with the rotation of the receiving table to press and move the defective container to the back side of the holding means. The defective container discharging device according to claim 1 or 2, wherein The conveying means is a discharge star wheel of a rotary processing device, and the rotary processing device is provided with a rotating body rotatably provided, and a predetermined number of rotating bodies provided at equal intervals in a circumferential direction of the rotating body. A plurality of processing heads for performing processing, and further comprising the discharge star wheel, and the same number of guide grooves of the receiving table as the number of processing heads of the rotary processing device, and each guide groove and the processing head 4. The defective container discharging device according to claim 1, wherein the rotating body and the receiving table are rotated synchronously with each other in a state in which the rotating body and the receiving table correspond to each other. The conveying means is a discharge star wheel of a rotary processing device. The rotary processing device is provided with a rotating body provided rotatably, and a predetermined number of rotating bodies provided at equal intervals in a circumferential direction of the rotating body. A plurality of processing heads for performing processing, the discharge starwheel, and a transport conveyor for receiving and transporting the containers from the discharge starwheel, and the discharge position of the containers from the discharge starwheel to the transport conveyor is the rejection. Position.
Further, the receiving table is provided adjacent to the discharge starwheel at a position beyond the transfer conveyor, and the reject device is provided on the discharge starwheel to suck only a defective container transferred by the discharge starwheel. 5. The defective container discharging device according to claim 1, wherein the defective container is transported to a receiving table that passes over the transporting conveyor and transferred to the holding unit.

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