JPH0440250B2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a container filled with viscous contents of toothpaste, cosmetics, foods, and other pasty products, that is, a bottom lid that moves along the inside of the container. Therefore, the present invention relates to a packaging device for filling and packaging containers, which is used by extruding contents from a discharge port.

[Conventional technology]

Generally, in a container in which a bottom cover or piston of this type is installed inside the container, after filling the container with the contents, the bottom cover is pressurized by a pusher and pushed in rapidly. In order for the container to function effectively against viscous contents, it must be sealed and packed as advantageously as possible.

Conventionally, when inserting the bottom cover or piston into the container, the container is inverted and filled with viscous contents.
The bottom cover is fitted into the container and the bottom cover is guided into the container using a pusher, but this is done because the contents are viscous and to improve work efficiency.
The product is packed by pressing it firmly under a large pressure, and the greater the viscosity, the greater the pressure.

[Problem to be solved by the invention]

However, when inserting the bottom cover into the container, if you push the bottom cover all the way in, the air that has entered the container will be sealed without escaping, and the air will remain sealed and the quality of the contents will be affected. In addition to the negative impact on warranty, the inaccuracy of metering also makes it impossible to achieve a high pump filling rate, and causes significant inconvenience in automatic manufacturing and filling.

The present invention aims to accurately eliminate these conventional drawbacks, and provides an effective container filling and packaging device that can sufficiently deaerate the air that tends to remain inside the container and maintain airtightness after sealed packaging. It is intended to.

[Means to solve the problem]

In the present invention, after filling a container with viscous contents,
In an apparatus for sealing and packaging viscous contents by inserting a bottom lid that can slide on the inner wall of the container and pressing the bottom lid into the container using a pusher, the container is filled with viscous contents and the bottom lid is inserted. a conveyor for horizontally transporting the container, and a pusher for pressing and inserting the bottom lid into the container held in an inverted state on the conveyor, and continuously moving inward in the container following the movement of the container. The container filling and packaging apparatus is characterized in that the pusher is provided on a guide rail having a downward slope with respect to the conveyor so as to be able to run freely via rollers in order to gradually insert the pusher into the container.

〔Example〕

An embodiment of the present invention will be described with reference to FIGS. 1 and 2. This device includes a filling section A for filling a viscous content while intermittently transporting a cylindrical container a; The container is provided with a pressing insertion part B for continuously pressing and inserting the bottom lid b into the container a after putting the bottom lid b into the container a, thereby sealingly packaging the viscous contents.

The filling section A includes a conveyor 1 for intermittently transporting containers a, and a filling machine 2 for filling containers a with viscous contents c. 4 is container a
It is a cylindrical body for fitting and supporting it upside down.
It may be used as a gripper or chuck as required.

The press insertion section B includes a shooter 3 for inserting the bottom cover b into the container a, an endless continuous conveyor 5 whose running speed is variable, and cylinders arranged at equal intervals on the conveyor 5. It includes a shaped body 4 and a guide rail 6 arranged endlessly above the conveyor 5.

A portion of this guide rail 6 first becomes a downward slope along the transport direction of the container a, and then becomes an upward slope. Further, a roller 9 equipped with a pusher 8 having a tip 7 at its tip is provided on the guide rail 6 so as to be able to run along the guide rail 6. The pusher 8 is rotated by a continuous moving type moving mechanism with a variable running speed so as to be located directly above the container a, and is configured to move the pusher 8 in accordance with the transfer of the container a.

Furthermore, between the filling part A and the press insertion part B,
A transfer mechanism (not shown) is provided for automatically transferring the container a on the conveyor 1 to the cylindrical body 4 on the conveyor 5.

Note that the transfer mechanism can be omitted if the conveyor 1 of the filling section A is of a continuous running type up to the press insertion section B, or if the filling machine 2 is arranged on the conveyor 5 of the press insertion section B. .

Then, the conveyor 1, the conveyor 5, the moving mechanism of the roller 9, and the transfer mechanism are started, and the container a is inverted on the cylindrical body 4 on the conveyor 1 either manually or by an automatic loading device, and the container a is placed in the filling machine. When the container a is transferred directly under the shooter 3, the filling operation with the viscous content c is automatically performed, and then the container a enters the press insertion section B, and when the container a comes directly under the shooter 3, the filling operation is automatically performed. While the bottom cover b is being loaded and being transferred to one side by the conveyor 5, the pusher 8 is gradually and continuously lowered by the guide rail 6 on the downward slope, and the tip 7 continuously lowers the pusher 8. While the air d between the bottom cover b and the viscous contents c is degassed, the contents c move toward the discharge port f via the check valve e, and the air g near the discharge port f is removed.
While being discharged from the discharge port f, the bottom cover b is pressed and inserted. After the end of this press-insertion operation, the guide rail 6 has an upward slope, the chips 7 are gradually removed from the container a, and the sealed package is dropped onto the discharge chute 10 by a take-out mechanism (not shown), and the next Sent to the process. Note that e' in FIG. 1 is a check valve provided in container a.

In this case, since the pressing insertion operation of the bottom cover b, that is, the downward movement of the pusher 8, is performed continuously, it is possible to perform sealed packaging with reliable deaeration. The deaeration effect can be further ensured by reducing the traveling speed of the guide rail 6 or adjusting the slope of the guide rail 6.

The bottom cover b is shaped so that its sealing lip abuts against the cylindrical inner wall of the container a and is inserted into the container a while being guided by the inner wall, so that when inserted, the bottom cover b has a sealing lip that contacts the cylindrical inner wall of the container a. The shape is such that the air d once contained between the container a and the container a is reliably degassed and discharged outside the container a, while a cap a' is fitted to the discharge port f of the container a so as to surround it. However, since the airtightness is maintained to the extent that a slight amount of air can circulate, as the bottom cover b is inserted, the contents are pushed into the dome partitioned into the container a. It moves toward the discharge port f, and the air g near the discharge port f is discharged from the discharge port f. In addition, the bottom cover b of container a
It is preferable that the sliding surface be a rough surface having fine irregularities, so that deaeration can be carried out more smoothly.

The speed of the press-insertion operation of the bottom cover b into the container a, that is, the moving speed of the bottom cover b (in the case of the example, the descending speed) is determined by the shape of the container a, the roughness of its inner wall surface,
It varies depending on the shape of the seal lip, the viscosity of the viscous contents, the structure of the check valve e, etc., but generally 200
It is preferable to set it as slow as mm/sec or less,
If the viscous content is relatively low viscosity, 50 to 150 mm/
sec, and in the case of high viscosity, pressure insertion is performed at 10 to 40 mm/sec. Please note that the movement speed is 200mm/
If it exceeds sec, the deaeration efficiency will deteriorate rapidly,
This method requires an extremely large pressing force, which tends to cause problems and should be avoided.

In addition, in this press insertion operation, the air g in the dome partitioned into the container is usually discharged relatively easily, and then the viscous contents are pushed into the dome deep in the container, and the air d Therefore, it is preferable to gradually increase the pressing force of the pusher 8 against the bottom cover b as the bottom cover b moves.

Although the support shaft of the pusher 8 is of a fixed length, the support shaft may be replaced with an extensible member such as a coil spring.

[Effects of the Invention] The present invention provides a conveyor for horizontally transporting a container filled with viscous contents and a bottom lid, and a conveyor for pressing and inserting the bottom lid into the container held upside down on the conveyor. In order to follow the movement of the container and continuously and gradually insert the container into the container, the pusher can run freely through a roller on a guide rail having a downward slope with respect to the conveyor. By preparing for this, it is possible to reliably degas the inside of the container, effectively filling and packaging viscous contents, and having good airtightness, and when it is necessary to extrude viscous contents. In addition, a product that functions reliably can be obtained, the contents can be stored for a long time because there is little residual air in the container, and packaging efficiency is greatly improved, contributing to labor savings.

[Brief explanation of drawings]

FIG. 1 is a flow sheet of an embodiment of the present invention;
FIG. 2 is an explanatory diagram of the press insertion process of the bottom cover. A... Filling section, B... Press insertion section, 1, 5... Conveyor, 2... Filling machine, 3... Shooter, 4... Cylindrical body, 6
...Guide rail, 7...Chip, 8...Pushier, 9
...roller, 10...discharge chute, a...container,
a'...cap, b...bottom lid, c...viscous contents, d,
g...Air, e, e'...Check valve.

Claims (1)

[Claims] 1. In a device that seals and packages viscous contents by filling a container with viscous contents, inserting a bottom lid that can slide against the inner wall of the container, and inserting the bottom lid into the container by a pusher, the viscous contents are sealed. The container comprises a conveyor for horizontally transporting a container filled with contents and a bottom lid, and a pusher for pressing and inserting the bottom lid into the container held in an inverted state on the conveyor. In order to continuously and gradually insert the pusher into the interior of the container following the movement of the pusher, the pusher is provided on a guide rail having a downward slope relative to the conveyor so that the pusher can run freely via rollers. packaging equipment.