JPS633811B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an apparatus for supplying lids for sealing the mouths of various containers such as paper or synthetic resin cup-shaped containers.

Conventionally, this type of feeding device has a rotating body with a horizontal axis at the top of a conveyor that conveys containers in a line, and the rotating body is rotated in the direction of container feeding with the lower part of the outer periphery of the rotating body being close to the containers. While rotating in the same direction and at the same speed, a vacuum suction mechanism is provided on the outer circumferential surface of the rotating body at the same pitch as the feeding interval of the container, and the back side is supplied to each suction mechanism at the upper part of the outer circumference of the rotating body. When the adsorbed lid comes onto the lower container due to the rotation of the rotating body, the vacuum suction is released and the lid is dropped and supplied onto the container.

However, this device requires multiple vacuum suction mechanisms and vacuum switching mechanisms for the rotating body, as well as a vacuum pump as a vacuum source, which not only makes the structure extremely complicated and large, but also makes it extremely expensive. Ta. Furthermore, recently, for cup-shaped containers made of paper or synthetic resin, a flat (not cap-shaped) lid made of metal foil such as aluminum is used, and this is heat-sealed to the top of the container. When this flat lid made of metal foil is handled by the conventional device described above, not only will the lid be deformed due to the vacuum suction on the rotating body, but also air will be absorbed during the fall from the rotating body into the container. Due to resistance, etc., the extremely light flat lid tends to shift relative to the container, and it is necessary to provide a step to correct the shift before heat-sealing the lid to the container.

The present invention provides a device that has a simple structure and is miniaturized, which can handle such a flat lid made of metal foil without deforming it and reliably feed it to the correct position with respect to the container. be. That is, a horizontal arc-shaped lid guide section is provided on the top of the containers that are fed in a line by the conveyor in a tangential direction toward the front side with respect to the feeding direction, and the container slides over the guide section. By sliding the moved lid from the end of the guide section onto the top surface of the container on the conveyor, the lid is supplied onto the container without being deformed. Utilizing the inclination when sliding upward, the lid body is slightly shifted toward the front in the feeding direction relative to the container, and the lid body in this shifted state is
The pin that feeds the lid along the guide portion is brought into contact with the front side of the container in the feeding direction, so that the lid can be fed to the correct position relative to the container. It is something.

The present invention will be explained below with reference to the drawings of the embodiments. In the drawings, 1 is a machine base, and between the link chains 2, which are provided in two rows in parallel on the machine base 1, there is a flange 3'.
Receivers 4 into which the top-shaped containers 3 are fitted are provided at regular intervals p in the longitudinal direction of the chain,
A conveyor 5 is configured to convey the materials in a line in the direction of arrow A at a constant speed.

Reference numeral 6 denotes a rotating shaft vertically supported by a bearing bracket 7 formed on the machine base 1 on one side of the conveyor 5, and the upper end of the rotating shaft 6 is provided at an appropriate height from the upper surface of the container 3 on the conveyor 5. A rotating body 8 is fitted at a high position, and a horizontal guide plate 9 is provided on the lower surface of the rotating body 8 supported by the bearing bracket 7, and this guide plate 9 is moved close to the upper surface of the container 3 on the conveyor 5. A guide wall 10 is provided on the upper surface of the guide plate 9 to surround the outer periphery of the rotary body 8 over approximately a semicircumference on the front side of the feed side of the conveyor 5. A substantially semicircular lid guide portion 11 is formed between the guide portion 11 and the outer periphery, and a flat lid 12 made of metal foil such as aluminum is placed at a starting end 11′ of the guide portion 11 that is far from the conveyor 5.
The chute 13 is designed to feed the containers 3 one by one onto the starting end 11' in accordance with the conveyance interval of the conveyor 5, while the terminal end 11'' of the guide section 11 is connected to the transport line of the containers 3 on the conveyor 5. The guide plate 9 in the guide portion 11 has an arc-shaped slit 15 whose radius is the distance from the axis of the rotating shaft 6 to the feed center line 14 of the conveyor 5. , are provided centered on the axis of the rotating shaft 6.

When a plurality of pins 16 extending parallel to the rotating shaft 6 are attached to the outer periphery of the rotating body 8 via an arm 17, each pin 16 is arranged on the same circumference as the slit 15. , slit 16
In addition, the circumferential spacing of each pin 16 is made the same as the spacing p between the containers 3 on the conveyor 5, and the rotating body 8 is moved so that the circumferential speed of each of the pins 16 is the same as the moving speed of the conveyor 5. It is rotated in the direction of arrow B so that when each pin 16 comes on the feed center line 14 of the conveyor 5, it contacts the collar 3' of the container 3 on the front side in the feed direction. It is composed of

In this configuration, the starting end 1 of the guide portion 11
The lid body 12 supplied from the chute 13 onto 1' is
The pin 16 moves in the slit 15 in the guide part 11 toward the terminal end 11'' as the rotating body 8 rotates.
As a result, the container is pushed from behind and sent along the guide section 11 in the direction of the conveyor 3, and eventually slides down from the terminal end 11'' of the guide section 11 onto the top surface of the container 3 on the conveyor 5. When the lid body 12 is slid down, the front side of the lid body 12 protrudes from the terminal end 11'' of the guide part 11, and the front side of the lid body 12 is attached to the container 3 located below.
By tilting as shown in FIG. 4 so as to make contact with the upper surface, when the lid 12 slides down from the guide part 11 onto the container 3, it moves a small distance toward the front in the feeding direction of the container 3. When the pin 16 is placed on the center line 14 of the conveyor 5, the pin 16 is placed at a position delayed by e.
comes into contact with the flange 3' of the container 3 on the front side in the feeding direction, so the lid 12 supplied at a position delayed by a slight distance e with respect to the container 3 comes into contact with the flange 3'. As the pin 16 advances the container 3 by the delay distance e, the lid 12 is corrected to the correct position with respect to the container 3, and the above action is repeated to move the conveyor. The lids 12 can be supplied one by one to the correct position to the containers 3 sent by the container 5.

As described above, the present invention provides a horizontal arc-shaped lid guide section disposed tangentially toward the front side with respect to the feeding direction on the top of the containers fed in a line by a conveyor. Remove the lid on the top of the guide.
After being transferred onto the conveyor by the push of a pin provided on the rotating body, it is placed onto the container from the end of the guide section.
The lid is placed slightly shifted in the forward direction of the feeder, and then the pin is brought into contact with the collar of the container on the front side in the feeding direction, thereby correcting the lid to the correct position relative to the container, Even if the lid to be handled is a flat one made of metal foil such as aluminum, there is no risk of deforming it, and it can be fed accurately to the correct position relative to the container, making it easy to make subsequent corrections. It requires no process at all,
Moreover, the present invention has a structure that consists only of an arc-shaped guide portion and a rotating body with a pin, compared to the conventional system which requires a vacuum suction mechanism, a vacuum switching mechanism, and a vacuum pump for the rotating body. It is extremely simple, can be provided at low cost, and has many effects such as being able to be significantly miniaturized.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention; FIG. 1 is a plan view, FIG. 2 is an enlarged sectional view of FIG. 1, FIG. 3 is an enlarged sectional view of FIG. 1, and FIG. 4 is an enlarged sectional view of FIG. It is a figure showing a working state. 1... Machine base, 2... Chain, 4... Receiver, 5...
... Conveyor, 3 ... Container, 3' ... Tsuba, 6 ... Rotating shaft, 8 ... Rotating body, 9 ... Guide plate, 10 ...
Guide wall, 11... Guide portion, 12... Lid body, 1
3...shoot, 15...slit, 16...pin, 17...arm.

Claims (1)

[Claims] 1 A rotating body that rotates horizontally is provided on the side of a conveyor that horizontally transfers containers in a line at regular intervals, and a horizontal arc-shaped lid guide that surrounds a part of the circumference is provided on the outer periphery of the rotating body. a part is disposed tangentially toward the front side of the conveyor with respect to the conveying row of containers on the conveyor, and a chute for supplying the lids to the containers one by one is seen at the starting end of the guide part; A terminal end of the guide part is placed over the feeding row of containers on the conveyor, and the guide part includes:
An arc-shaped slit whose radius is the distance from the rotation center of the rotating body to the feed center line of the conveyor is provided, and a plurality of pins extending in the axial direction of the rotating body are provided on the same circumference as the slit. The pins are provided at circumferential intervals that are the same as the conveyance intervals of the containers on the conveyor, and the pins are protruded downward from the slits, and the conveyor is fed so that the circumferential speed of each pin is the same as the conveyor feed speed. In addition to being rotationally driven in the same direction as the conveyor direction, each pin in the rotating body was configured so that when the pin came on the feed center line of the conveyor, it would come into contact with the side surface on the front side of the feeder with respect to the collar of the container. A device for supplying a lid to a container, characterized in that: