JPS6055366B2 - vacuum packaging machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides a portable plastic bag in which a binding clip is fitted to the neck of the plastic bag after deaerating the air around the packaged items inside the bag. The present invention relates to a vacuum packaging machine.

The object of the present invention is to deaerate the inside of a bag filled with about 5 to 9 to 50 to 90 pieces of packaged items, such as pickles, to reduce the tension of the bag, and then seal it, and to further strengthen the bag. This is a semi-mechanized version of the packaging process.

In this type of conventional packaging work, as shown in Fig.
Put the bag 1 filled with In addition to completely manual methods such as putting the lid 5 on the container 3 as shown in Figure 3, there are fully automatic methods that use a conveyor-type vacuum packaging machine, but the former is inefficient and the latter is not suitable for small-capital businesses. It had its pros and cons, including being uneconomical.

In view of the above points, the present invention provides a packaging machine that is economical and has improved efficiency.

Embodiments of the present invention will be described below based on the drawings.

In the embodiment shown in FIG. 4, a bag 1
A roller conveyor 26 for transporting the container 3 and the container 3 together, and a vertically elongated support 7 are provided. In addition, a support 11 is attached to the support 7.
A threaded rod 13 supported on a screw seat 12 fixed to the upper end of the support column 7 is attached to the support base 11 so as to be movable up and down.
The abutment 11 can be moved up and down by operating a round handle 14 that is engaged with the threaded rod 13 and fixed to the threaded rod 13. Further, a vacuum tube 17 is rotatably supported on a shaft bearing 15 above the roller conveyor 26 on the support 11, and a gear 19 fixed to the upper end of the vacuum tube 17 on the upper side of the support A gear 20 of a drive device 22 fixed to the upper surface via a bracket 21 is engaged. The vacuum tube 17 is arranged so that its center line is vertical, and the circumferential surface of the lower end 23 of the tube is formed in a shape that widens towards the end, and a rubber friction body is provided around the flap part. I'm running 24. Also, one end of the hollow part inside the vacuum tube 17 opens at the lower end 23 of the tube, and the other end opens at a ring 16 formed on the inner surface of the shaft bearing part.
It opens through a through hole 18 at a position opposite to the rotor 16, and the rotor 16 communicates with a vacuum device (not shown) through a hose 25. Further, below the support 11, the support 7 supports a pedestal 8 equipped with a binding device 10 so as to be movable up and down, and the variable position of the pedestal 8 can be freely set using a set bolt 9. There is.

The binding device 10 described above is shown in detail in FIG.
The illustrated binding device is of a type in which the neck of the bag is fastened with a clip formed of a U-shaped metal piece. In other words, a sword sheath-shaped guide stand 29 is placed on the top surface of the pedestal 8.
As shown in FIG. 6, a rod 30 is slidably disposed in a gap formed between the guide table 29 and the top plate 43 above it. In addition, a large number of clips 28 formed of U-shaped metal pieces are stacked in a U-shaped space formed between the mandrel 27 erected on the top plate and the plate 44 around it. These clips are connected by adhesive tape 28a. Furthermore, one end 32a of the hand lever 32 is pivotally supported on the pedestal 8 via a pin 33.
and the rod 30 are connected via a link 31. Further, another link 35 is connected to the other end 34 of the hand lever, and the other end of the ring 35 is engaged with an eccentric portion of a cam plate 36 rotatably provided on a base. Furthermore, one end of a swing arm 41 pivotally supported on the pedestal 8 via a pin 38 is brought into pressure contact with the peripheral surface of the cam plate 36 by the tension of a spring 46, while the other end 39 of the swing arm 41 is brought into pressure contact with the circumferential surface of the cam plate 36. A fixed anvil 40 is disposed at a position facing a ■-shaped guide groove 45 formed in the top plate 43 of the guide stand. The illustrated embodiment is constructed as described above. The action will be explained below.

In FIG. 5, when the hand lever 32 is rotated around the pin 33 to the position where it contacts the stopper 37, that is, to the position of the imaginary line, the impact rod 30 is displaced downward in the drawing in the guide table 29, On the other hand, the cam plate 36 is connected by the link ζ 35.
rotates clockwise.

Therefore, the swing arm 41 that is in contact with the cam plate is
The anvil 40 is rotated counterclockwise around the axis 8, and the anvil 40 is
Collision with the tip of 0. In the above case, among the clips stacked on the guide stand 29, the four lowest ones are guided out by the impact rod 30 and receive the impact of the anvil 40, so that the clips fit into the groove formed in the anvil 40. As a result, it deforms into a ring shape and reduces the diameter of the ring. On the other hand, as shown in FIG. 4, after the bag 1 contained in the container 3 is conveyed to the lower part of the bagiyum tube 17 by the roller conveyor 26, the opening of the bag 1 is placed around the bagiyum tube 17, and then the seventh As shown in the figure, the worker grips the opening of bag 1 with the palm of his hand in a circle, and
Airtightness between the tube and the vacuum tube 17 is maintained.

Note that if such work is repeated for a long period of time, fatigue will gradually accumulate and the grip strength will decrease, and eventually the airtightness between the bag 1 and the bag tube 17 will also deteriorate), but in the illustrated embodiment, the palm of the hand There is no need to forcefully grasp the bag 1, just by applying the weight of the worker's arm to the grip part of the bag tube 17 through the loop of the palm of the hand. It can be brought into close contact with the Then, when the vacuum device is operated, the air inside the bag 1 is discharged through the vacuum tube 17. Next, when the bag 17 is rotated by the drive device 22, the bag 1 is twisted thinly due to friction with the bag 17 as shown in FIG. After the driving device is stopped, when the other hand is grasped directly below the bagiyum tube and the hand around the bagiyum tube is released, the bag opening is detached from the bagiyum tube 17. As shown in Figure 9, the neck part of the bag is attached to the top plate 43.
By guiding the bag into the guide groove and then operating the hand lever 32, the clip can be fitted to the neck of the bag and tied up using the above-described action. FIG. 10 shows an embodiment in which a large number of grooves 48 are formed in the lower side 47 of the wrapper part 50 of the vacuum tube 17, and each of these grooves 48 is communicated with the internal hollow part through a hole 49. According to the embodiment hole 4
Since the mouth of the bag is wedged into each groove 48 due to the suction action of 9, when rotating the bag tube 17, it becomes possible to twist the bag, which requires grip strength from the operator.

Furthermore, various types of binding devices are conceivable, and the structure does not necessarily have to be as shown in the embodiments. As mentioned above, in the vacuum packaging machine of the present invention, the vacuum tube 17 connected to the vacuum device is also connected to the drive device 22, and after deaerating the bag, the opening of the bag is twisted thinly by mechanical force. , which are moved to the binding device 10 and bound with clips, which is more economical than an all-automatic vacuum packaging machine, and more efficient than manual packaging.

In particular, the lower end circumference of the bag 17 is formed into a wrapper shape, and the airtightness between the bag 1 and the bag 1 can be maintained simply by placing the weight of the arm on the wrapper. does not require. However, with this type of semi-automatic machine, manual efficiency cannot keep up with machine capacity over time due to worker fatigue, but with the present invention, the level of fatigue is reduced, making this type of packaging work even more efficient. It has the effect of

[Brief explanation of the drawing]

FIGS. 1 to 3 are cross-sectional views for explaining the conventional packaging process. FIG. 4 is a sectional view of the embodiment. FIG. 5 is a plan view taken along line X--X in FIG. 4. FIG. 6 is a sectional view taken along the Y-Y line in FIG. 5. FIG. 7 to FIG. 9 are explanatory diagrams of the packaging process according to the embodiment. FIG. 10 is a local side view showing another embodiment. 6...
・Machine base, 7... Support, 8... Pedestal, 1
0... Binding device, 15... Bearing part, 1
7...Bakiyum tube, 24...Friction body,
29... Information desk, 30... Thrust, 32
...Hand lever, 36...Cam plate,
39... Arm, 40... Anvil, 41
... Swinging arm, 45 ... Guide groove.

Claims (1)

[Claims] 1 A vacuum tube 17 of a predetermined length is supported in a hanging manner on the shaft bearing part 15 of the support base 11 provided on the machine base 6 via the support 7, and the upper end of the vacuum tube is connected to a vacuum device, and the support A driving device 22 fixed to the stand 11 and the vacuum pipe 17 are connected so that the vacuum pipe can be rotated about its vertical center line, while a shelf is attached to the support 7 on the underside of the support stand 11. A shaped pedestal 8 is provided, and a binding device 10 is installed on the pedestal for fitting a binding clip to the neck of the bag below the lower end of the bag tube 17, and furthermore, a binding device 10 is installed at the lower end of the bag tube 17. A vacuum packaging machine characterized by a peripheral surface formed in a round shape.