JPH0363506B2 - - Google Patents

Description

[Detailed description of the invention] This invention provides liquid cosmetics such as shampoos and rinses,
The present invention relates to a forming device for a simple double-sided molded small container used for filling a single use amount or a small amount of other liquid substances, suppositories, or other solid substances.

Traditionally, the production of this type of double-sided molded small container involves the entire process of molding both sides of a printed original fabric (thermoplastic sheet), primary heat sealing of the container periphery, filling the contents, secondary heat sealing, and punching. It is common to carry out the process in-line, but in that case, conventional methods have been to carry out all processes vertically or horizontally.

However, with the vertical type, the horizontal machine length can be shortened, which is preferable in terms of saving machine installation space, but at the cost of this, the machine height is usually 3 m or more, making it expensive to replace the original material and replace the mold. In addition to making maintenance work troublesome and difficult, since the flow of the raw film is vertical, the lower three-sided seal for filling the contents (material to be filled) always passes through the nozzle part for filling the contents. Since this is done later, the contents adhere to the inner surface of the original film before the lower three-sided sealing is performed, resulting in frequent seal failures and the contents tending to drip.

On the other hand, the horizontal type allows for changing the original material, changing the mold, etc.
This makes maintenance work easier, but the length of the machine becomes longer, which requires a larger machine setting space, and the accuracy of the conveyor pitch is also limited due to the balance between each process section, or if the material is thin and soft. Pitch management is difficult because
Particularly when manufacturing multi-sided printing products with printing registration, there is a problem that the product inevitably has many variations.

This invention was made in view of the above circumstances, and allows the machine height to be significantly lowered compared to the conventional vertical type, and the machine length is not so long, and each It is an object of the present invention to provide a molding device for double-sided molded small containers that allows easy pitch control in the process.

That is, the present invention includes: a pressure-forming mechanism; a temporary sealing mechanism disposed below the pressure-forming mechanism for filling the contents; and a pair of raw films forming the front and back surfaces of a small container from above the pressure-forming mechanism. and a longitudinal conveyance mechanism that sequentially passes each pitch through the temporary sealing mechanism; cutting the temporarily sealed film by passing through the temporary sealing mechanism into pitch units in a direction perpendicular to its longitudinal direction; a transverse transport mechanism that transports the cut film pitch by pitch in a substantially horizontal direction; a filling mechanism; a sealing mechanism provided downstream of the filling mechanism to completely seal the opening of the filled small container; a sealing mechanism provided downstream of the sealing mechanism for removing the sealed small container from the original film; The object of the present invention is to provide a molding device for a double-sided molded small container, characterized in that it is equipped with a punching mechanism for cutting the containers one by one.

That is, in the apparatus of the present invention, a part of the process part is arranged vertically and the other part is arranged horizontally, so that
The above objectives were successfully achieved.

The present invention will be described below with reference to an illustrated embodiment.

FIG. 1 shows the vertical part of the apparatus of the present invention, which is equipped with a blade 2 for cutting a raw film 1 continuously fed from a roll (not shown) into 1/2 width pieces. A film dividing mechanism A, a pair of raw films 1 divided by this mechanism are passed through an air blowing member 3 and a pair of molds 4a disposed on both sides thereof.
4b, and the air blowing member 3 is sandwiched between the air blowing member 3 and the
A pressure forming mechanism B that molds the front and back surfaces of a small container using air pressure from A temporary sealing mechanism C is provided with a pair of heating plates 5a and 5b for sealing (only one of them may be used as a heating plate), and the temporary sealing mechanism C is arranged below the temporary sealing mechanism C. The sealed raw film 1 is moved in its longitudinal direction (or running direction).
The raw film 1 supplied from the raw film dividing mechanism A is transferred to the air pressure forming mechanism B by a pair of fixed clamps 6a and a movable clamp 6b. In addition to intermittently supplying each pitch from above, a pair of fixed clamps 7a and a movable clamp 7b are provided below the temporary sealing mechanism C to intermittently pull the original film 1 from the temporary sealing mechanism C. It consists of a vertical transport mechanism E.

To explain this vertical part in more detail, the dividing mechanism A divides the raw film 1 continuously supplied from the raw roll through the roller 11 into 1/2 width pieces, and separates the front and back films of the small container. form,
After this film is separated in both left and right directions, the films are sent to the air pressure forming mechanism B by the longitudinal conveyance mechanism E in such a manner that they face each other.

As shown in FIG.
The air blowing member 3 is heated while being held between the molds 4a and 4b on both sides.
By blowing high-pressure air (or hot air) onto one surface of the film 1, recesses corresponding to the cavities of the molds 4a and 4b are formed in the film 1.

The temporary sealing mechanism C is for heat sealing the periphery of the concave portion which becomes the contents filling portion of the small container, leaving only the top portion for filling the contents, for example. Note that this temporary seal may be heat-sealed all around the recessed portion, and the top portion may be cut and opened using the cutting mechanism D later.

The cutting mechanism D cuts the original film 1, which has been formed into the shape of a small container by temporary sealing, vertically in the longitudinal direction of each row (every pitch) of the small containers arranged in parallel, and then cuts the cut unit film horizontally. This makes it possible to easily manage the conveyance pitch of the conveyed film.

The vertical transport mechanism E carries the original film 1 sent from the original film dividing mechanism A via rollers 8 and 9.
First, the fixed clamp 6a is opened, the movable clamp 6b is closed, and the movable clamp 6b is moved one pitch horizontally with both ends of the original film 1 being clamped, and the temporary sealing mechanism C is synchronized with this.
Open the lower fixed clamp 7a and move the movable clamp 7
b is closed and the movable clamp 7b is moved downward while holding both ends of the raw film 1. By moving the movable clamp 7b downward, the raw film 1 is moved from above the air pressure forming mechanism B to the air forming mechanism B and the temporary seal. It passes through mechanism C one pitch at a time. Although FIG. 1 shows the intermittent supply means for the original film 1 only on the left side, the pair of fixing clamps 7 on the left side also shows the intermittent supply means on the left side.
a, a pair of fixed clamps and a movable clamp that operate in conjunction with the movable clamp 7b make it possible to similarly transport the right-side original film 1 pitch by pitch. The moving ramps 6b and 7b are opened during the operation of the air pressure forming mechanism B and the temporary sealing mechanism C (note that the fixed clamps 6a and 7a are closed at that time to clamp the original film 1) and return to their original positions. do. These movable clamps 6b, 7b can be reciprocated by a cylinder 10 connected to the lower movable clamp 7b. That is,
The movable clamps 6b and 7b are rollers 11a to 11e.
The movable clamps 6b are fixed to the endless chains 12 that move through the endless chains 12, and when the movable clamps 6b move by one pitch, the movable clamps 7b simultaneously move by one pitch in the same direction.
In addition, fixed clamps 6a, 7a, movable clamp 6
The opening and closing operations of b and 7b can be performed by cylinders 13a to 13d provided respectively. By moving the movable clamp 6b in the horizontal direction in this manner, it is possible to considerably reduce the height of the entire device.

FIG. 3 shows the horizontal part of the apparatus of the present invention, in which the original film 1 cut by the cutting mechanism D is held at its lower end in units, and is cut by each pitch in a substantially horizontal direction. A lateral conveyance mechanism F (see FIG. 4) for conveying, a plurality of nozzles 14 provided along this lateral conveyance mechanism F for filling the contents into temporarily sealed small containers, and a temporary seal. A filling mechanism G is provided with a guide plate 15 for opening the upper part of the unit film which has been prepared and cut into units to facilitate the filling operation, and the filling mechanism G is used to fill the contents. Heat seal the top of each small container and apply appropriate I.
A sealing mechanism H for adding a notch, and a punching mechanism I provided downstream of this sealing mechanism H for separating the completely sealed small containers from the original film as individual sachet containers 17. It is made up of.

To explain this horizontal part of the apparatus in more detail, first, the horizontal conveying mechanism F moves the unit film 1 cut as described above almost horizontally in an upright state, and moves it to the filling mechanism G, the sealing mechanism H, and the punching mechanism. Since the purpose is to move the mechanism intermittently at a predetermined pitch, the intermittent movement is performed by the vertical transport mechanism E.
I'm starting to be in tune with that.

The filling mechanism G fills the contents into each small container 1 through a plurality of nozzles 14 communicating with the contents storage container 16.
As shown in FIG. , the nozzle 14 is lowered and inserted between the guide plates 15, and the contents are injected. In addition, in FIG. 4, 22 is a guide plate.

The sealing mechanism H is for completely sealing the filling opening (upper part in the figure) of the small container that has been filled with contents, and also for forming an I-notch for opening the small container 17 if necessary. , for example, as shown in FIG. 3, includes a pair of heating means 18 and notch means 19.

The punching mechanism I is for punching out a small container 17 filled with contents and completely sealed along the seal around the container, and a corresponding blade is inserted into a female die 20 that has been previously punched in the shape of a pouch. male type with 21
Each small container 17 can be separated from the original film 1 by inserting the . The separated small containers 17 are collected into a suitable container (not shown) via an endless belt 21, for example.

According to this invention, the pressure forming and temporary sealing processes are performed vertically, and then the process of cutting the original film into unit blocks containing one or more small containers is interposed, and then the filling, complete sealing, and Since the punching process is carried out horizontally, the length of the machine can be significantly lowered compared to the conventional vertical type, making work operations easier and preventing dripping of contents or raw film. It is possible to improve the occurrence of seal failure due to adhesion to the inner surface, and it is advantageous in many ways, such as saving machine setting space, making it easier to manage the pitch of the original film, and eliminating product variations.

In the above embodiment, the raw film is divided into 1/2 width pieces from the raw film roll and supplied to the pressure forming mechanism, but the present invention is not limited to this. The film may be fed to the air pressure forming mechanism from the left and right sides.

Furthermore, in the above explanation, the temporary sealing mechanism C heat-seals the periphery of the small container other than the top, but it is also possible to heat-seal the periphery of the container by the filling mechanism G immediately before filling. In the temporary seal mechanism C, only point seals may be used at appropriate locations between the small containers.

[Brief explanation of drawings]

FIG. 1 is a schematic diagram showing the vertical part of a forming apparatus for a double-sided molded small container according to the present invention, FIG. 2 is a diagram explaining the operation of the air pressure forming mechanism in the apparatus shown in FIG. 1, and FIG. 3 is a diagram showing the present invention. FIG. 4 is a schematic diagram showing a horizontal portion of a molding apparatus for a double-sided molded small container, and FIG. 4 is a side view of a main part illustrating the operation of the filling mechanism. In the figure, 1... Raw film, 2... Blade, 3... Air blowing member, 4a, 4b... Mold, 5a, 5b... Heating plate, 6a, 7a... Fixed clamp, 6b, 7b... Moving clamp, 8, 9...Roller, 10...Cylinder,
11a to 11e...roller, 12...endless chain,
13a-13d...Cylinder, 14...Nozzle, 15
...Guide plate, 17...Sachet container, A...Dividing mechanism, B
... Air pressure forming mechanism, C... Temporary sealing mechanism, D... Cutting mechanism, E... Vertical conveyance mechanism, F... Horizontal conveyance mechanism,
G... Filling mechanism, H... Sealing mechanism, I... Punching mechanism.

Claims (1)

[Claims] 1: a pressure-forming mechanism; a temporary sealing mechanism disposed below it for filling the contents; and a pair of original films forming the front and back surfaces of a small container from above the pressure-forming mechanism and the temporary sealing mechanism. a vertical conveyance mechanism that sequentially passes one pitch at a time;
a mechanism for cutting the film temporarily sealed by passing through the temporary sealing mechanism into pitch units in a direction perpendicular to its longitudinal direction; transporting the cut film pitch by pitch in a substantially horizontal direction; a lateral conveyance mechanism that is provided along this lateral conveyance mechanism and that fills the contents into temporarily sealed small containers; a filling mechanism that is provided downstream of the filling mechanism that fills the filled small containers; A double-sided film comprising: a sealing mechanism that completely seals the opening; and a punching mechanism that is provided downstream of the sealing mechanism and that separates the sealed small containers from the original film one by one. Molding equipment for small containers.