JPS603043Y2 - Carton container filling equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a carton container filling device that uses an ultrasonic sealing device to seal the opening of a carton container after filling with liquid.

Recently, carton containers made of three layers of polyethylene, paperboard, and polyethylene have been introduced as sales containers for milk, juice, sake, etc.
Many carton containers made of five layers of polyethylene are on the market.

The liquid filling operation of such a carton container is roughly performed by the following steps.

That is, the first step: As shown in FIG. 1, a semi-finished carton container 1 with an open top and a cross section IXm is supplied onto a conveyor of a liquid filling device.

2nd process: Carton container 1 supplied on the conveyor in the 1st process
As shown in FIG. 2, a folding pattern is formed on the carton around the opening along the folding ruled line 6.

Third step: In the second step, liquid is filled into the carton container up to a height of H through the opening formed by folding around the opening.

Fourth step: Fold the front panel 2, rear panel 3, side panel 4.5, seal strip 7, etc. of the carton container 1 filled with liquid in the third step along the ruled line 6 as shown in FIGS. Fold in as shown.

Fifth step: By heating the folded palm portion 9 of the carton container 1 with the top folded in in the fourth step using an ultrasonic sealing device, it is sealed liquid-tightly as shown in the hatched seal portion 8 in FIG. 3. do.

Sixth step: As shown in FIG. 4, the folded palm portion 9 of the carton container sealed in the fifth step is laid down and welded to the top side of the carton container.

Through the steps described above, the liquid filling operation of the carton container 1 is completed. In the fifth step, when sealing the carton palm part 9 by ultrasonic heating, the material of the part of the carton container 1 is changed. A phenomenon occurs in which a portion of the filled liquid turns into paper dust and acid mist and scatters into the space around the palms 9 due to the influence of the ultrasonic vibrations.

FIG. 5 is a plan view showing an example of a carton container filling device, and 10 is a longitudinal flat strip rail on which the carton container 1 is sent in the direction of the arrow while sliding intermittently on the upper surface; 11.11
' is stretched between the sprocket pairs 12, 12 and 12', 12' arranged along the rail 10 on the left and right sides of the rail 10, respectively, and has an interval m' corresponding to one side m of the cross section of the carton container 1. Each endless chain 1 with left and right endless chains arranged oppositely
A large number of corner guides 13, 13 and 13', 13' having an L-shaped cross section are protruded and fixed to sprockets 12, 12 and 12 with a pitch P1 into which one side of the cross section of the carton container to be transferred is to be fitted. Due to the intermittent rotation in the direction of the arrows ', 12', the corner guides 13, 13, 13', 13' move along the rail 10 at the four corners of the cross section of the carton 1.
By abutting the corners, the carton containers 1 are intermittently transferred one after another in the longitudinal direction.

I, n, III, .

That is, at position ■, the corner guides 13.13, 13 of the chains 11, 11' are stopped while the chains 11.11' are stopped.
The first step is carried out by feeding the carton container 1 by a feeder (not shown) so that the bottom part is inserted into the space having a quadrilateral cross section surrounded by ', 13'.

When the supply of carton container 1 is finished, chain 11.11
' moves by pitch P and transfers carton container 1 to position ■.

At position (3), the carton container 1 is folded along the folding lines 6 at the top thereof by a device (not shown) while the chains 11, 11' are stopped, and the second step is carried out.

When this operation is finished, the chain 11.11' is also moved by a pitch P.

In this manner, at position (3), the carton container 1 is filled with liquid and the third step is performed.

Next, at position (3), as shown in FIG. 3, the top portion is folded in and the fourth step is performed, and at position The seal portion 8 is sealed, and the fifth step is performed.

That is, FIG. 6 is a cross-sectional view taken along line A-A at position X in FIG. When it stops, the anvil 23 moves to the air cylinder 24.
move forward in the direction of the arrow and press the seal part 8 against the horn abutting end 2.
An appropriate pressure is applied between the anvil 23 and the anvil 23 by a control device (not shown).

Subsequently, the ultrasonic vibrator 20 is excited to generate approximately 20.00
When the horn 21 vibrates at 0 Hz for a predetermined period of time, the polyethylene of the front panel 2, rear panel 3, and side panels 4.5 that make up the liquid-tight seal section 8 heats up and melts, and the ultrasonic vibration ends and the seal section 8 When cooled, the close abutments of the front panel 2, rear panel 3, and side panels 4, 5 are welded together in a fluid-tight manner.

Thereupon, the air cylinder 24 is moved back in the direction of the dashed arrow by a control device (not shown), and the chain 11.11' is moved again to transport the carton container 1 to the position M.

By the way, when the seal part 8 is subjected to ultrasonic vibration by the horn 21, as shown in FIG. As shown in FIG. 8, the filling liquid adhering to the inner surface of the palm part 9 scatters in the form of mist.

The paper powder and acid mist scattered in this manner adhere to and accumulate around the device, or remain on the inner surface of the front and rear panels of the carton container and rot over time, which is undesirable from a sanitary standpoint.

Therefore, the applicant has recently proposed a device in which a suction nozzle is attached near the sealing portion of a carton container sealed by an ultrasonic sealing device to remove paper dust and acid mist.

However, the paper dust becomes wet with the acid mist and remains attached, making it difficult to completely remove it.

The present invention was proposed in view of the above circumstances, and includes a conveying device for conveying a carton container having a confinement panel at the upper end, a filling device for filling liquid into the carton container,
In a carton container filling device having an ultrasonic sealing device which sandwiches and seals the panel between a horn and an anvil and holds the panel for a certain period of time, the carton container filling device is arranged facing the ultrasonic sealing device and seals the panel of the carton container after welding and sealing. It is characterized by comprising a water injection device that injects water toward the horn and anvil that are being held, and an air injection device that injects air to the panel of the carton container that has been treated with the ultrasonic sealing device, The purpose is to provide a carton container filling device that can obtain sanitary cartons without adhesion or accumulation of paper powder and liquid powder.

An embodiment of the present invention will be described below with reference to FIGS. 9 to 11.

Reference numeral 50 denotes a bracket fixed to the anvil 23, and a water pipe 52 is fixed to the bracket 50 with a flexible pipe 51 interposed therebetween so that it can expand and contract in accordance with the movement of the anvil 23.

The piping 52 has a large number of small holes 53 passing through the bracket 50.
is provided, and a blind test 54 is provided at the end.

On the other hand, the flexible pipe 51 is connected to a water supply pump (not shown) that is driven intermittently as described later.

Further, on the downstream side of the ultrasonic sealing device in the carton transport direction, that is, on the downstream side of the pipe 52 that injects water, an air nozzle 55 that blows air to the sealed palm portion 9 is disposed as shown in FIG. This nozzle 55 is connected to the pipe 5.
6 to an air supply blower (not shown).

In the above configuration, the folded palms 9 of the carton 1 sent to the ultrasonic sealing section are pressed between the contact end 22 of the horn 21 and the anvil 23 with an appropriate pressure, and the horn 21 is ultrasonically vibrated for a predetermined period of time. It is welded and sealed.

After the horn stops vibrating, the compressed state is maintained for a predetermined period of time to allow the seal to cool and harden. During this period, the pump is driven and the pipe 5
Water is injected from the small holes 53 of No. 2 and scattered by ultrasonic vibration, and paper dust and acid mist adhering to the palms of the hands are washed away and removed.

Thereafter, the pump is stopped, the anvil 23 is moved back, and the carton 1 is sent to the next process. Here, the water is drained by air injected from the nozzle 55 disposed on the downstream side of the piping 52. dried.

In the above embodiment, the pipe 52 for injecting water is provided on the anvil 23, but it may be provided separately.

As is clear from the above examples, according to the present invention, paper dust and acid mist are removed by being washed away by jetting water, and then dried by blowing air, so paper dust and acid mist are completely removed. It can be removed and a hygienic carton can be obtained.

[Brief explanation of the drawing]

1 to 4 are explanatory diagrams showing the filling process of a carton container, and FIG. 5 is a schematic plan view showing an example of a conventional filling device.
Figure 6 is a view taken along the line A-A in Figure 5, Figures 7 and 8 are explanatory diagrams showing paper dust and acid mist generated during ultrasonic sealing, Figure 9
The figures are a front view showing an embodiment of the present invention, FIG. 10 is a plan view of FIG. 9, and FIG. 11 is a front view showing an air injection device.

Claims (1)

[Scope of utility model registration request] A transport device that transports a carton container having a confinement panel at the upper end, a filling device that fills liquid into the carton container, and a horn and an anvil that sandwich and seal the panel by welding and hold the panel for a certain period of time after sealing. In a carton container filling device having an ultrasonic sealing device, a water injection device that injects water toward a horn and anvil arranged facing the ultrasonic sealing device and holding panels of the carton container after welding and sealing. and an air injection device that injects air onto the panel of the carton container that has been treated with the ultrasonic sealing device.