JPS6240889Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] This invention is a packaging method for packaging small items such as screws, bolts, nuts, or bean snacks in heat-sealable packaging such as polyethylene bags or laminated bags. It is related to the device.

[Conventional technology and its problems]

It has traditionally been common practice to count small items such as screws and pack them into polyethylene bags or other wrapping bags after each count, but packing has traditionally been done manually. It was very time consuming because I had to do it like this.

[Problem for invention]

Therefore, the technical objective of this invention is to solve the above-mentioned inconveniences and improve the efficiency of bag filling work by automatically performing everything from storing small items to sealing the bag opening.

[Structure of the idea]

In order to solve the above problems, this invention consists of a fixed suction head with a suction hole on one side of the lower part of the hopper through which small articles are fed in quantity, and a linear suction head for fusing the bag opening directly below the suction head. On the other side of the lower part of the hopper, a support stand capable of supporting heat-sealable bags in a stacked state is placed, and suction is applied to the tip of the piston rod of the suction cylinder provided on the support stand. A movable suction head having a hole and a heater pedestal for clamping the opening of the packaging bag with the heater are attached, and the suction head moves from a position facing the support stand to a position corresponding to the fixed suction head. The configuration includes a rotation drive device that rotates the cylinder by a set angle.

[Effect]

The bag filling device with the above configuration has a suction head that moves a large number of bags on a support base and moves the topmost bag forward by the operation of a suction cylinder, and a suction cylinder that moves the topmost bag forward. The bag opening is conveyed to the lower part of the hopper by the rotating action, and the bag opening is clamped between the fixed suction head and the fixed suction head by the forward movement of the suction head, and the bag opening is suctioned by the fixed suction head. The bag opening is opened by the backward movement of the head, and in this state, the fixed amount of small parts supplied into the hopper is dropped and fed into the wrapping bag. After supplying, the movable suction head moves forward again to close the bag opening with the fixed suction head, and in this state, the bag opening is heat-sealed with a heater, and the movable suction head moves backward to close the bag. The material is discharged by falling.

〔Example〕

Hereinafter, embodiments of this invention will be described based on the accompanying drawings.

As shown in FIGS. 1 to 3, the upper part of the switching plate 2 disposed inside the hopper 1 is rotatably supported by a pin 3, and a cylinder 4 for rotating the switching plate is located in the middle of the switching plate 2. When the piston rod 5 is connected and the cylinder 4 is actuated, the lower end of the switching plate 2 comes into contact with the inner surface of one of the opposing side plates of the hopper 1, and the two passages 6, partitioned by the switching plate 2, The lower outlet of 6' is selectively opened.

Of the two passages 6 and 6', the lower exit of the discharge chute 7 for fixed quantity small articles faces the upper part of one passage 6, and the lower outlet of the card supply chute 8 faces the upper part of the other passage 6'. .

Further, above the hopper 1, a card conveyance device 10 is provided which takes out one card A diagonally placed in the card receiver 9 from the front and supplies it to the card supply chute 8 mentioned above. This card conveying device 10 has a card suction cylinder 14 connected to the tip of a piston rod 13 of a lateral feed cylinder 12 supported on the upper part of a hopper support frame 11.
A suction port 16 is attached to the tip of the piston rod 15 of the cylinder 14.

Note that when the card suction cylinder 14 supplies fluid into the cylinder tube, the piston rod 1
5 moves forward and stops when the suction port 16 at the tip comes into contact with the card A in the card holder 9, and the suction port 16
This is a known device in which a suction force is applied to the suction port 16, and when the card A is attracted by the suction port 16, the piston rod moves backward.

In the card conveying device 10 having the above configuration, when the suction port 16 that has attracted the card A as described above moves backward, the lateral feed cylinder 12 is activated to move the piston rod 13 backward, and the suction port 16 feeds the card. When the card stops at a position facing the upper part of the chute 8, the suction force applied to the suction port 16 is released and the card A is supplied to the card supply chute 8.

Below the hopper 1, a gutter-shaped bag receiving stand 17 is provided.
A piston rod 19 of a cylinder 18 for raising and lowering the support table is connected to the support table 17. A support plate 20 for supporting the lower part of the hopper 1 is also provided.
A suction head 21 and a linear heater 22 for sealing the bag opening are fixed to the underside of the suction head 21, and directly below the suction head 21, a suction passage 23 is provided in the suction head 21, as shown in FIG. 4, so that when suction force is applied to the suction passage 23, the suction force acts on a suction nozzle 24 attached to the front surface of the suction head 21.

The heater 22 is supported by an insulator 25,
Cylinder 2 attached to the bottom surface of the insulator 25
A needle 27 is attached to the piston rod 6. Further, an air injection pipe 28 is arranged below the cylinder 26, and when compressed air is supplied into the pipe 28, this air is transferred to the air injection pipe 28.
The liquid is sprayed obliquely upward from a plurality of nozzles (not shown) provided in the.

A support stand 29 for a bag that can be heat-sealed is arranged on the side of the bag holder 17. This support stand 2
9 is inclined toward the bag holder 17, and except for one side facing the holder 17, support plates 30 for supporting the three sides of the bag B are provided on the remaining three sides. ing.

A bag suction cylinder 31 is disposed above the support stand 29, and a movable suction head 33 is provided at the tip of the piston rod 32, and a heater holder 34 for holding the opening of the bag B with the heater 22. is installed. The movable suction head 33 has the same structure as the fixed suction head 21 described above, so a description thereof will be omitted.

In the case of the embodiment, the suction head 21 has a suction port 24.
Although a plurality of suction holes communicating with the suction passage 23 may be provided on the front surface of the suction head 21.

A block 35 is attached to the middle of the bag suction cylinder 31, and a rotating shaft 37 of a rotary actuator 36 is connected to the block 35.
When the rotary actuator 36 is operated,
The bag suction cylinder 31 is rotated by a set angle from a position where the movable suction head 33 faces the bag support stand 29 to a position where the movable suction head 33 faces the fixed suction head 21.

A pusher 38 for discharging the packaging B remaining on the packaging holder 17 is arranged at the end of the packaging holder 17,
A pusher moving cylinder 39 is attached to the pusher 38.
A piston rod 40 is connected thereto.

The bagging device shown in the embodiment has the above-mentioned structure, and this bagging device places a plurality of stacked bags B on the bag support stand 29, and moves the uppermost bag B to the movable suction head. 33 and conveys it onto the packaging holder 17, the opening of the bag is opened on the packaging holder 17, and the lower part of the packaging B is supported by the packaging holder 17. A fixed amount of small articles and cards are supplied inside.

After supplying small items, heat seal the bag opening and close it.
By moving the pusher 38, the packaging bag B is discharged from the packaging receiving stand 17.

Now, when a plurality of packaging bags B are placed on the packaging support base 29 with the bag openings facing upward, when the packaging suction cylinder 31 is operated and the piston rod 32 is advanced, the movable suction head 33 at the tip is moved. It comes into contact with the bag opening of packaging bag B. When the movable suction head 33 suctions the bag opening, the rotary actuator 3
6 is activated to rotate the bag suction cylinder 31 by a set angle in the direction of the arrow in FIG. Therefore, the uppermost package B stacked on the package support stand 29 is conveyed upward with the bag opening facing upward. At this time, if the packaging bag B is soft, there is a risk that the bag opening may open and get caught on the tip of the insulator 25 during transportation. In order to prevent this, in the case of packaging bag B whose bag opening tends to open, air is injected from the aero injection pipe 28, and the bag opening is closed by the injected air.

When the movable suction head 33 rotates to a position facing the fixed suction head 21 and stops, the piston rod 32 moves forward due to the operation of the bag suction cylinder 31, and the movable suction head 33 and the fixed suction head 2
When the bag opening is clamped between the piston rods 1 and 1, the piston rod 32 moves back a little. At this time, since suction force is acting on the suction port 24 of the fixed suction head 21,
The opening of the wrapping bag B is opened as shown in FIG.

When the opening of the packaging bag B is opened, a fixed amount of the small articles C is supplied from the discharge chute 7 to the passage 6 of the hopper 1, and the packaging holder 17 rises to receive the lower part of the packaging bag B. When the opening of the packaging bag B is opened, the switching plate 2 is moved to the third position by the operation of the switching plate rotation cylinder 4.
Rotate to the position shown by the chain line in the figure. Therefore, the fixed quantity small articles C in the passage 6 fall into the packaging bag B, and
When the card falls, one card A is fed into the card supply sheet 8 by the operation of the card conveyance device 10, and the card A falls from the sheet 8 into the passage 6' of the hopper 1.

After the card A is supplied, the switching plate 2 is rotated from the chain line position to the solid line position in FIG. 3 by the action of the switching plate rotation cylinder 4. Therefore, the card A in the passage 6' falls into the wrapping bag B, and the card A
When supplying, a fixed amount of small articles C is supplied into the passageway 6.

After supplying the card A, the packaging suction cylinder 31
When the movable suction head 33 moves forward and the bag opening is clamped between the movable suction head 33 and the fixed suction head 21, the heater 22 is energized, and the heating of the heater 22 seals the bag opening. be done.

Air is sealed inside the bag B by the seal at the bag opening as described above, and when the air needs to be evacuated, the cylinder 26 is actuated to release the needle 2.
7 is advanced, and a small hole is made in a part of the capsule B by piercing the needle 27.

After the bag mouth is sealed, the suction of each suction head 21, 33 to the suction port 24 is released, the piston rod 32 of the bag suction cylinder 31 moves backward, and the rotary actuator 36 is operated, so that the solid line in FIG. The bag suction cylinder 31 in the position rotates to the chain line position. Further, the packaging bag B supported on the packaging holder 17 is discharged from above the packaging holder 17 by the forward movement of the pusher 38, and after being discharged, the packaging bag B is supported by the packaging holder 17.
7 goes down.

In the case of the embodiment, the packaging bag B is used as the packaging bag support stand 29.
Although the support stand 2 is shown as being able to support the
The configuration of 9 is not limited to this, and the packaging bag B may be supported horizontally.

In the case of the embodiment, the lower part of the packaging bag B is placed on the packaging holder 17.
However, if the small article is lightweight, the package holder 17 can be omitted, and the pusher 38 can also be omitted in connection with this.

〔effect〕

As described above, according to this invention, by the simple operation of placing a plurality of stacked packages on the package support stand, a fixed amount of small articles can be stored inside the packages; The bag opening can be sealed automatically, which has a great effect on improving the efficiency of bag filling work.

[Brief explanation of the drawing]

Fig. 1 is a partially cutaway front view showing an embodiment of the bagging device according to the invention, Fig. 2 is a plan view of the same, Fig. 3 is a longitudinal sectional front view of the main parts of the above, and Fig. 4 is FIG. 5 is a cross-sectional view of the fixed suction head same as above, and a vertical side view of the bag filled with small articles. 1...Hopper, 21...Fixed suction head, 22
. . . heater, 24 .

Claims (1)

[Scope of utility model registration request] A fixed suction head with a suction hole is placed on one side of the lower part of the hopper through which small articles are fed in quantity, and a linear heater for fusing the bag opening is installed directly below this suction head, and the other side of the lower part of the hopper is provided with a linear heater for fusing the bag opening. A support stand for the bag that can be heat-sealed is placed on the support stand, and a movable suction head having a suction hole at the tip of the piston rod of a suction cylinder placed on the support stand and the heater are used to open the bag opening of the bag. A bagging device comprising: a heater pedestal for clamping the cylinder; and a rotary drive device for rotating the cylinder at a set angle from a position where the suction head faces the support stand to a position where the suction head faces the fixed suction head.