JPH01124536A - Vacuum packer for package - Google Patents

Abstract

PURPOSE:To form packages which are safe against damage and falling, by forming grain-packages having holes and sealing the holes in a vacuum chamber. CONSTITUTION:Packages 30 with holes in a weigher and packer are formed in a forming chamber 38 and then sealed at the holes. A sealer apparatus 42 equipped with a sealer 41 at the tip of rods 40 of a sealing cylinder 39 is provided in the forming chamber 38 which is connected to a vacuum pump through a suction duct 43. The forming chamber 38 is brought to a vacuum condition in such a extent that the pressure within packages 30, 30 comes to be equal to the pressure within the forming chamber by the operation of the vacuum pump. The packages 30, 30 are formed by vibration of a forming conveyor 44 with a vibrator. The rods 40 of said sealing cylinder 39 are stretched and the packages 30, 30 are pressed by the sealer 41 to seal the holes 48 by a seal 49. As the pressure inside the packages 30, 30 is equal to that of the forming chamber 38, solidified packages 30, 30 become soft. Accordingly, forming work can be much easily carried out.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a vacuum packaging apparatus for shaping a package containing weighed grains such as rice in a vacuum room.

[Conventional technology]

In automatic packaging equipment, which continuously measures a predetermined amount of grains such as rice, fills them into polyethylene packaging, and seals the opening of the packaging, the grains are transported from the previous process and placed into the packaging. By this time, it contains a lot of air and its apparent specific gravity decreases. If the opening is sealed without sufficient air degassing, the packaging will become like an air pile, making it unstable to stack on a pallet and difficult to transport and store.If the packaging is stacked forcibly, the packaging will be damaged. Resulting in.

One way to prevent this is to ventilate the packaging by making small holes in the package, but this poses the problem that insects and bacteria can enter through the holes during storage, causing the grain to rot and making it difficult to preserve (especially in the summer). there were.

[Problem that the invention seeks to solve]

This invention solves the above-mentioned problems, and by shaping the perforated packaging in which grains are wrapped inside a vacuum seedling and sealing the holes of the perforated packaging, it is possible to create packaging in a shape that is difficult to break or fall. The purpose of the present invention is to provide a vacuum packaging device that can form packages.

[Means for solving problems]

In order to achieve this object, the present invention has the following configuration.

A grain weighing/packaging device consisting of a weighing/filling section consisting of a weighing tank, a discharge chute, etc., a bag making section, a bag feeding device, a clamping mechanism for sealing the opening of the package, a dispensing device, etc. establish. Then, in the next step of the weighing/packaging device, a vacuum sealing device including a shaping means for shaping the perforated packaging into a predetermined shape and a sealing device for sealing the holes in the perforated packaging is provided, and a vacuum pump is connected to the vacuum sealing device. .

[Function] After a predetermined amount of grain is weighed and filled into a package, the opening is sealed and the package is sent to a vacuum sealing device. Then, in the vacuum sealing device, the perforated packaging is shaped into a predetermined shape by the shaping means, and the holes in the perforated packaging are sealed by the sealing device.

(Example) An example of the present invention will be described with reference to the drawings. 1st
The figure is a side sectional view of a vacuum sealing device embodying the present invention.
3 is a diagram showing the sealed state, FIG. 3 is a layout diagram, FIG. 4 is a partially cutaway front view of the weighing and packaging device, and FIG. 5 is a diagram showing the clamp mechanism.

The grain weighing/packaging device 1 includes a weighing/filling section 2, a bag making section 3, and a packaging section 4. The weighing/packaging section @1 includes a supply hopper 5, a supply chute 6 following the supply hopper 5, a supply gate cylinder 7, a weighing tank 9 equipped with a load cell 8, a discharge gate 10 provided at the discharge port of the weighing tank 9, and a discharge gate. 1
It consists of a gear motor 11 for opening and closing 0, a discharge chute 12 erected below the discharge gate 10, and further provided with a small discharge pipe 13 and an electromagnetic feeder 14.

Next, the bag making section 3 will be explained. The film 16 rotatably placed on the roll table 15 is made of a resin with relatively high gas barrier properties (low permeability) such as polyester, nylon, or polyvinyl chloride, or a laminate such as polyethylene bonded to the inside of vinyl. Made of wood. The film 16 is guided by a pressure roller 17 and a number of guide rollers 18 to a lower sealing device 19.
leading to. Further, the symbol @20 is a lower sealing cylinder, and a sealing stand 21 is provided below it.

The packaging section 4 will be explained. A bag supply arm 24 operated by a bag supply cylinder 23 is buried near the guide plate 22, and a clamp finger 25 and a finger cylinder 26 for operating the clamp finger 25 are attached to the tip of the bag supply arm 24.

A pair of gates 27 equipped with opening/closing means are provided at the lower end of the discharge chute 12, and a clamp mechanism 28 is also provided. A sealing tool 31.31 for sealing the opening of the package 30 is attached to the upper surface of the clamping tool 29°29 so as to be able to move slightly in the front and back direction, and the vicinity of the opening of the package 30 is attracted to the upper surface of the sealing tool 31.31. The suction tools 32, 32 are fixed, and the reference numeral 33, 33 is an auxiliary clamp tool. A bottom plate 34 and a bottom plate cylinder 35 are provided below the clamp mechanism 28 to support the bottom of the bag.

Further, reference numeral 36 denotes a vacuum sealing device, and a sealing device 42 having a sealing machine 41 attached to the tip of a rod 40 of a sealing cylinder 39 is provided in a shaping chamber 38 formed by a machine frame 37. The shaping chamber 38 is connected to a vacuum pump (
44 is a shaping conveyor, and the machine frame 37 is provided with opening/closing ff's 45A and 45B, respectively.

As shown in FIG. 3, usually a plurality of vacuum sealing devices 36 are arranged in parallel to increase work efficiency. Measurement·
The packaging device 1 includes a conveyor 46A and a rotating conveyor 47A.
One side is connected to the vacuum sealing device f from the conveyor 46B via
The other one is connected to the vacuum sealing device 36B from the conveyor 46C. The vacuum sealing devices 36A and 36B each have a conveyor 46D.
, 46E, conveyor 4 via turning conveyor 47B
I am contacting 6F.

Hereinafter, the effects of the above embodiment will be explained. A large amount of polished rice in the supply hopper 5 is thrown into the measuring tank 9 by the supply chute 6, and after the supply gate is closed by the supply gate cylinder 7, the dispensing vibrator 13 and the electromagnetic rice are used until the load cell 8 detects the predetermined amount. A small amount of feeding is performed by the feeder 14.

On the other hand, in the bag making section 3, when the flow of the film 16 stops, the lower sealing cylinder 20 extends and pushes down the sealing stand 21 to form the package 30.

When the seal stand 21 rises, the finger cylinder 2
6 operates to clamp the upper end of the package 30 with the clamp finger 2.
5, the bag supply cylinder 23 further extends, rotates the bag supply arm 24, and supplies the package 3o gripped by the clamp fingers 25 to the clamp mechanism 28. Then, a small hole is made in the package 30 with a needle (not shown), and then in the clamp mechanism 28, a pair of claws (not shown) clamp both ends of the upper end of the package 30, and the claws of each other As the bag approaches, the center part of the bag opening is attracted by suction tools 32 from both sides, and the bag opening opens.

When the bag mouth is opened, the gear motor 11 is driven to open the discharge gate 10, and the rice grains in the measuring tank 9 flow down the discharge chute 12 and are thrown into the package 30. Filling is 7
When the filling progresses from 0 to 80%, the bottom plate cylinder 36 expands and raises the bottom plate 35 to support the bottom of the package 3o and promote filling. When filling is completed, the upper part of the bag mouth is sealed by the sealing tool 31° 31, and when the sealing is completed, the claw body opens and the bottom body 35 is released, and the package 30, which has become a packaged product, is placed on the conveyor 55'A. let it fall.

The wrapped package 30 is transferred to a conveyor 46. Transfer conveyors 468 and 46 are alternately conveyed from A by turning conveyor 47A.
G to vacuum seal equipment E36A, 36B. First, when the opening/closing door 45A is opened, the packages 30, 30 are sent to the shaping conveyor 44, and when the packages 30, 30 are placed in a predetermined position, the shaping conveyor 44 is stopped and the opening/closing door 45A is closed. .

Then, a vacuum pump (not shown) is activated to remove the packaging 3.
0.30 and the pressure inside the shaping chamber 38 become equal, the shaping chamber 38 is made into a vacuum state, and the shaping conveyor 44
is vibrated by a vibrating device (not shown) to package 30, 3.
Format 0. Next, the rod 4 of the sealing cylinder 39
When the seal 41 is pressed against the packages 30, 30, the hole 48 is sealed by the seal 49 as shown in FIG. At this time, since the pressure inside the packages 30, 30 and the pressure inside the shaping chamber 38 are the same, the packages 30, 30, which had been hard, are softened and the shaping operation becomes very easy. When the shaping work and sealing work are completed, the opening/closing door 45B is opened and the shaping conveyor 44 is operated to remove the packaging 3.
0.30 is conveyor 46D.

Sent to 46E. Then, when the package 30.30 leaves the shaping chamber 38 and returns to atmospheric pressure, the pressure inside the package 30.30 is lower than the atmospheric pressure, so the shaped state 'C' is brought into close contact. The packages 30.30 are then alternately sent from the conveyor 460.46E to the conveyor 46F via the turning conveyor 47B.

In this embodiment, the packaging 30 with holes punched in the weighing/packaging device 1 is sealed in the shaping chamber 38 after shaping, but the holes in the packaging 30 without holes are sealed in the shaping chamber 38 with a punching device or the like. It is also possible to drill a hole and seal the hole after shaping.

〔Effect of the invention〕

According to the vacuum packaging device of the present invention, the grain weighing and packaging device includes a weighing and filling section, a bag making section, a bag supply device, and a packaging section, and a hole is formed in the next step of the weighing and packaging device. A vacuum sealing device including a shaping means for shaping the package into a predetermined shape and a sealing device for sealing the perforated package is provided, and a vacuum pump is connected to the vacuum sealing device, so that it can be easily used in a vacuum shaping room. It is possible to shape the perforated packaging, and the packaging becomes tightly sealed under atmospheric pressure, becomes moderately hard, and is sufficiently shaped. Therefore, it is possible to completely prevent packaging damage 1 [1] during stacking operations using pallets, etc., increasing the stability of packaging and greatly improving the efficiency of distribution operations.

[Brief explanation of the drawing]

FIG. 1 is a side sectional view of a vacuum sealing device embodying the present invention;
2 is a diagram showing a sealed state, FIG. 3 is a layout diagram, FIG. 4 is a partially cutaway front view of the weighing and packaging device, and FIG. 5 is a diagram showing a clamp mechanism. DESCRIPTION OF SYMBOLS 1... Grain weighing/packaging device, 2... Weighing/filling section, 3... Bag making section, 4... Packaging section, 5... Supply hopper, 6... Supply chute, 7... Cylinder for supply gate, 8... Load cell, 9... Measuring tank, 10
...Discharge gate, 11...Gearto motor, 12.
...Discharge chute, 13... Small outlet pipe, 14...
Electromagnetic feeder, 15... Roll mounting base, 16... Film, 17... Pressure feeding roller, 18... Guide roller, 19... Lower sealing device, 20... Lower sealing cylinder, 21. ... Seal stand, 22 ... Guide plate, 23 ... Bag supply cylinder, 24 ... Bag supply arm, 25 ... Clamp finger, 26 ... Cylinder for finger, 27 ... Gate, 28...
Clamp mechanism, 29... Clamp tool, 30... Packaging, 31... Sealing tool, 32... Adsorption tool, 33...
...Auxiliary clamp tool, 34...Bottom plate, 35...Cylinder for bottom plate, 36...Vacuum sealing device, 37...
・Machine frame, 38...Orthopedic chamber, 39...Sealing cylinder, 40...Rod, 41...Sealing machine, 42.
...Sealing device, 43...Suction pipe, 44...Orthopedic conveyor, 45A, B...Opening/closing door, 46A-F...
Conveyor, 47A. B... Rotating conveyor.

Claims (1)

[Claims] A grain weighing/packaging device consisting of a weighing/filling section including a weighing tank, a discharge chute, etc., a bag making section, a bag feeding device, a packaging section including a clamp mechanism for sealing the opening of the package, a dispensing device, etc. , in the next step of the weighing and packaging device,
A vacuum sealing device comprising a shaping means for shaping a perforated packaging into a predetermined shape and a sealing device for sealing holes in the perforated packaging, and a vacuum pump is connected to the vacuum sealing device. packaging equipment.