JPS5940717B2 - Gas filling capping device - Google Patents

Description

[Detailed description of the invention] The present invention relates to a gas filling and capping device.

Conventionally, when packaging infusions, injections, other drugs, foods, etc., it is common to fill the container with an inert gas such as nitrogen gas after filling the container with the contents. Since each operation was performed using separate equipment, it took time from gas filling to plugging, resulting in a poor gas replacement rate. Recently, a method has also been adopted in which the air inside the container is removed by applying a negative pressure from above the mouth of the container, and then the gas is filled and the stopper is tightened, but the stopper must not be held above the container while filling with gas. The opening of the container must be enclosed in a sealed chamber during vacuum and gas filling, and in the case of infusion bottles, infusion fluid may enter the ventilation tube due to negative pressure. Because the stopper had to be inserted into the mouth of the container before filling, the device became complicated and packaging efficiency was poor.

Furthermore, there is still no machine that can plug rubber stoppers with built-in ventilation pipes, and currently, plugging is done manually.

The present invention was invented to solve these conventional drawbacks, and includes a stopper supply holder having a gripping finger for holding a stopper and which moves up and down and rotates and reciprocates, a gas filling nozzle, and a stopper. a filling and capping support member having a head, in which the gas filling nozzle and the capping head alternately rotate and reciprocate toward a position corresponding to the container opening, and move up and down at a position corresponding to the container opening; The cap supply holding part and the filling and capping support part are configured so that they can be interlocked with each other by a cam device so that the stopper supply holding part supplies the stopper after gas is filled by the filling and capping support part. This is what was placed.

According to the apparatus of the present invention, the plugging operation after gas filling can be completed in a short time, and the gas replacement rate can be substantially maintained.

That is, when the gas filling nozzle is inserted into the container and filling the container, a stopper is already prepared above the container mouth, and as soon as the nozzle is removed, the stopper is placed above the container mouth, and furthermore, the stopper is placed above the container mouth. It is characterized in that speed can be increased by rotating the supporting part that was previously moving and allowing the capping head to descend from above the mouth of the container and capping the container.

The embodiments shown in the drawings will be described below.

In the example, after filling an infusion bottle with an infusion solution, the upper part of the container was filled with an inert gas such as nitrogen gas, and a rubber stopper with a vent pipe assembled using an assembling machine was plugged.

This is a device that supplies it to the next process. First, the whole device is
This will be explained based on Figure 2.

Reference numeral 1 denotes a transfer conveyor for supplying bottles, which supplies bottles to a turntable 4 via a screw 2 for supplying bottles and a rotation guide 3, and fills gas and supplies stoppers during continuous rotation of the turntable. Then, the product is corked and supplied from the discharge conveyor 6 via the rotary guide 5 to the next process.

7 is a defective product discharge conveyor.

This is equipped with a counting means for counting the containers on the turntable and a discharge guide as a device for discharging defective gas-filled containers when the machine is stopped. 7a indicates its discharge guide.

8 is a vent pipe assembly machine for assembling a vent pipe into a rubber stopper, and the assembled rubber stopper is transferred to a rubber stopper shower and a transfer device 9.
From there, it is supplied to the fingers of the turntable by a linear feeder 10.

The rubber plug shower transfer device is shown in FIG.
The rubber plugs are sequentially transferred by vibration, and during the transfer, cleaning liquid is supplied from the shower pipe 13 and the rubber plugs are cleaned.

Note that 21 is a shower pipe.

Next, on the turntable 4, a plurality of pairs of a holding part for a rubber stopper gripper finger, a support part for a filling nozzle, and a support part for a stoppering head are arranged.

Therefore, the operation of this gas displacement capping machine will be described with reference to FIG. Grasp the rubber stopper a from the feeder 10 (the structure of which will be described later) and rotate it to position it above the mouth of the container b.

Next, the support shaft (the one shown shows the outer cylinder 48 of the support shaft), which has the gas filling nozzle 18 and the capping head 19 mounted on the fan-shaped plate 20 at the lower end, rotates and descends, and the gas filling nozzle 18
into container b and fill it with gas.

Filling is 160B. P. The gas is replaced in 3 seconds at the standard speed of M.

When the gas replacement is completed, the support shaft 17 is raised to remove the gas filling nozzle 18 from the container b, and the gas filling nozzle 18 is rotated toward the outside of the container b and withdrawn from above the mouth of the container. Gas filling nozzle 18
Simultaneously with the upward movement of the rubber stopper a, the holding shaft 16 of the rubber stopper a is lowered, and the rubber stopper a is installed on the container mouth. When the rubber stopper a is installed on the container mouth, the fingers 14 and 15 open and the rubber stopper Release a. Meanwhile, the support shaft 17 rotates again in the direction of the container b to position the capping head 19 above the container mouth. Then, at the same time that the fingers 14 and 15 described above open and release the rubber stopper a, the support shaft 1T descends and the stopper head 19 plugs the rubber stopper. The support shaft 17 and the holding shaft 16, which perform the above-mentioned operations, are arranged in a circle on the turntable 4 and are separately installed for the supplied containers, as described above. The gas is supplied from a gas tank 22 located at

A guide plate 24 having a groove for introducing gas (not shown) on its surface is installed between the gas tank 22 and a gas pipe 23 connected to the filling nozzle 18, and when this guide plate 24 rotates together with the turntable 4, it opens the filling port (not shown) of the gas tank 22. Gas is supplied to the gas pipes separately through the grooves. Next, the specific structure of the above-mentioned device will be described as follows. 5 and 6 show the relative relationship between the fingers 14, 15, the gas filling nozzle 18 and the capping head 19, and FIG. 5 shows the capping head 19 in operation.

The fingers 14, 15 are therefore open and the gas filling nozzle 18 is outside the container mouth.

A rubber plug push-out valve rod 25 is fitted into the plugging head 19 so as to be movable up and down, and is constantly under pressure by a spring 26. Furthermore, when one of the grip fingers 14 and 15 rotates, the other finger also rotates in conjunction with gears.

27 and 28 indicate gears that mesh with each other.

7 and 8 show the drive mechanism of the turntable 4, with FIG. 7 showing its lower half and FIG. 8 showing its upper half.

The turntable 4 is supported by a fixed shaft 29 via a bearing and driven by a drive gear 30.

In the illustrated example, the drive shaft 31 of the turntable is also connected to the machine frame 32.
It is supported by a self-aligning thrust bearing. As shown in FIG. 8, on the fixed shaft 29, there are also, from below, a capping upper and lower cam 34 made of a drum-shaped cam, a rubber capping upper and lower cam 35 also made of a drum-shaped cam, a rubber cap gripping cam 36 made of a disk-shaped cam, and A corking oscillating cam 37 made of a disc-shaped cam is attached.

The external appearance of the mounting manner is shown in FIG. Further, disks 38 and 39, each having one head mounted on the upper and lower sides with the cam in between, are supported by a fixed shaft 29 via bearings. This is the first head and the first finger.
A capping head that is equipped with a pair of filling nozzles.
The discs 38, 39 are also connected to each other by a skin 40,
Axial rotation stopper bearings 43 and 44 are fitted into large and small slit grooves 41 and 42 provided therein, respectively.

Supports 45 and 46 of the shaft rotation prevention bearings are connected to the outer cylinders 47 of the holding shaft 16 and the support shaft 17 through upper and lower collars, respectively.
, 48.

Also, the cam floors 49 and 50 of the supports 45 and 46 are connected to the cam 3.
Rolling on 5,34. Swing levers 51 and 52 are provided at the ball line portions at the upper ends of the holding shaft 16 and the support shaft 17, and these cam followers 53 and 54 are adapted to roll on cams 36 and 37, respectively. The cam followers 53, 54 are always pressed against the cams 36, 37 by springs (not shown), and the swing levers 51, 52 are mounted on the disk 39 without following the vertical movement of the shafts 16, 17. In the above mechanism, when the turntable 4 is rotated by the drive gear 30, the disks 38 and 39 are also rotated at the same time.

Therefore, the cam floor 53 of the swing levers 51, 52,
54 rotates on the fixed cams 36, 37 to rotate the holding shaft 16 and the support shaft 17 according to the cam shape, and the cam followers 49, 50 of the supports 45, 46 move on the cams 35, 3.
4, the holding shaft 16 and the support shaft 17 are moved up and down via the outer cylinders 47 and 48. At that time, the anti-rotation bearings 43 and 44 are inserted into the slit grooves 41 and 4.
2, the holding shaft 16 and the support shaft 17 can be moved up and down correctly.The holding shaft 16 is rotated by opening and closing the fingers 14 and 15 via gears 27 and 28. The rotation of the shaft 17 causes the filling nozzle 18 and the capping head 19 to alternately reach the container mouth. In any case, according to the present invention, the plugging operation after gas filling can be completed in a short time, and it is effective in plugging rubber stoppers incorporating vent pipes. be.

[Brief explanation of the drawing]

FIG. 1 is a plan view of the entire device. Figure 2 is a front view of the same as above. FIG. 3 is a perspective view of the rubber stopper shower transfer device. FIG. 4 is a perspective view of the main parts of the device of the present invention. Figure 5 is a diagram showing the relative movement of the same as above. FIG. 6 is a cutaway front view of the same as above. FIG. 7 is a cross-sectional view showing half of the turntable and drive section. 8th
The figure is a cross-sectional view showing half of the cam operating section. Figure 9 is a perspective view of the cam. FIG. 10 is a perspective view of the entire apparatus of the present invention. 1
4, 15... Finger 1, 16... Holding shaft, 17... Support shaft, 18... Filling nozzle, 19... Hitting Stopper head, a...
Rubber stopper, b...Bottle container.

Claims (1)

[Claims] 1. It has a gripping finger for holding the stopper, and has a stopper supply holding part that moves up and down and rotates and reciprocates, a gas filling nozzle, and a stoppering head, such as a gas filling nozzle and a stoppering head. The filling and capping support part alternately rotates and reciprocates toward the position corresponding to the container opening, and moves up and down at the position corresponding to the container opening. A filling and capping device in which a cap supply holding part and a filling and capping support part are configured and arranged so that they can be interlocked with each other by a cam device so that the stopper is supplied by the holding part.