JP2537921Y2 - Bag making, filling and packaging equipment - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION The disclosed technology is to form a bag such as a pillow type with a predetermined synthetic resin film sheet and the like, and to fill a predetermined product such as potato chips into the bag at a set weight or the like. Belongs to the technical field of packaging equipment structure.

[0002]

2. Description of the Related Art As is well known, the life of citizens has been improved, and the distribution system has become more complicated along with this, and a large amount of various and diversified products are produced in large quantities, and the products themselves are handed to consumers at stores and the like. It is not preferable from the viewpoint of mass and hygiene, and the mode of selling in a predetermined packaging state has been established.Therefore, at the stage of product production, a bag such as a pillow type is made and the predetermined product is manufactured. A system has been established in which a set weight is charged, filled, finally packed, and delivered to a distribution market by cardboard packing or the like. There are various forms such as a pillow type and a gusset type in the bag making / filling and packaging of the product at the production stage, but the cardboard is packed at the delivery stage, and furthermore, the product value is not reduced at the time of sale at the store. A pillow-type bag or the like is widely used in order to display the display in such a manner that the display is good and the display and the like are easy to see.

[0005] An outline of such a pillow type bag making / filling / packaging operation will be briefly described with reference to FIG. 5. A film sheet 2 made of a predetermined synthetic resin such as polyethylene is fed from a sheet roll 3 to a dancer by a bag making / filling / packaging apparatus 1. Roll 4
, A guide roll 5, a pinch roll 6, and the like, and are formed into a cylindrical shape outside the cylindrical cylinder 8 provided inside the former 7 in the former 7. 8 is continuously (or intermittently, depending on design) pulled down at a predetermined speed by a pair of pulling-down devices 9, 9 provided on both lower sides of the lower side, and both edge portions of the film sheet 2 are pulled down by the pulling-down device 9. , 9 are welded and integrated by the vertical sealer 10 in a polymerized state.
A lower horizontal seal is formed by a pair of horizontal sealers 11 and 11 facing each other at the lower side of the cylinder 2 so as to approach and separate from each other. Products 13 such as potato chips weighed by weight are charged from a filling hopper 14 provided integrally with the upper part of the cylinder 8 and filled, and then the upper horizontal seal 16 is formed by the horizontal sealers 11, 11. The horizontal sealer
A cutter (not shown) provided inside 11, 11 cuts the upper horizontal seal 16 to form a pillow-type bag 17 filled with the product 13, and continuously produces it as a predetermined product 18, The container is filled into a cardboard box (not shown) via a conveyor.

[0004]

Therefore, at a later stage of the manufacturing process of the product, the product is filled into a bag 17 made of a film sheet 2 of polyethylene or the like by a predetermined weight, sealed, and provided for delivery. It is being managed systematically.

[0005] However, as shown in FIG. 4, a product 18 in which a predetermined product is filled in a pillow-type bag 17 is packed and packed in a cardboard or the like at the time of packaging because the product 18 is a pillow type as shown in the figure. At the stage of pressurizing, or the air filled with the product inside while being pressurized during the boxing operation becomes a pressurized state, so that it may burst or become sealed, There is a possibility that cracks or the like may occur, and moisture may infiltrate, bacteria may invade, or the like, or the surface of the bag or the display portion may be damaged, thereby lowering the commercial value. There was a point.

However, in the bag making step of the bag 17, as shown in FIG. 4, the inside of the bag 17 is pressed in a flat shape by the horizontal sealers 11, 11 from the lower side of the cylinder 8 having a circular cross section to be horizontally sealed. Inevitably, the above-described problem occurs due to the presence of air inevitably.Therefore, in the bag making process, a technology for removing air as much as possible from the cylinder 8 to the horizontal sealing process has been researched and developed. As shown in Japanese Utility Model Publication No. 62-127903,
The cylinder 8 is formed in a double cylinder system having a ring-shaped gap with each other, the outer cylinder is provided with an intake port, connected to a blower, and the bottoms of the inner cylinder and the outer cylinder are opened to form a cylinder. There is a technique in which air is sucked from the inside of a film sheet, and the sucked air is made to face the hopper 14 to circulate the air and cope therewith.

Although it is possible to suck air from the inside of the cylindrical film sheet in the bag making process with this kind of technology, it is necessary to blow out the light into the hopper 14 from the preceding process of a light product such as potato chips. In the drop filling process via the hopper 14, there is a risk of scattering of the debris and debris of the product and braking at the falling speed, interference with the horizontal sealer 11 due to a delay in dropping, and the possibility of the filled product biting in the horizontal sealing. There was a problem.

Further, as shown in, for example, Japanese Utility Model Publication No. 63-23282 and Japanese Utility Model Publication No. 24-22422, a predetermined number of air escape grooves are formed on the outer surface of the cylinder 8 along the axial direction. There is a technology in which a suction ring is provided on the exposed portion of the upper end of the cylinder, and there is a technology in which the cylinder 8 is inclined to form a plurality of air escape holes to facilitate air discharge. In the process of escaping air between the film and the film sheet, fine product debris and the like also escape together with the air, and before the vertical seal, that is, while the film sheet is being sent, the vertical seal is in the middle of the falling of the filler. Is not formed, air leakage occurs from the overlapping portion of both edges of the film sheet, and also fine debris escapes, and when the vertical sealing is performed, a fine filler bites into the film sheet, resulting in poor sealing. There has been a problem that that.

[0009]

SUMMARY OF THE INVENTION The purpose of the invention of this application is to solve the problems such as biting of a filled product into a seal portion due to the extraction of the internal air at the time of forming a bag when the bag is formed, such as a pillow-type bag based on the prior art. The technical problem to be solved is that the air in the bag can be reliably pulled out at the time of bag making, and that the product is sufficiently filled as designed while fine product fragments etc. An object of the present invention is to provide an excellent bag making, filling and packaging apparatus that can be used in the field of product processing technology in the distribution industry without causing such problems.

[0010]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the construction of the present invention, which is based on the above-mentioned purpose and which is based on the claims of the present invention, is a bag making and filling apparatus for bags of pillow type or the like. In, the inner cylinder of the former has a triple cylinder structure of an inner cylinder, a middle cylinder, and an outer cylinder having a ring-shaped cross section of a predetermined size alternately, and further, the bottom of the inner cylinder and the middle cylinder is formed in a closed shape, The upper part of the outer cylinder is also closed, and the upper chamber of the outer cylinder is provided with an intake port and connected to the middle cylinder, and the upper parts of the middle cylinder and the inner cylinder are connected to a disc-shaped chamber. A blower is connected to the blower via an air inlet, and a predetermined number of a plurality of air outlets are formed obliquely downward on the wall surface of the inner cylinder, and a sheet such as a film sheet from a sheet roll is fed to the former and And a circular cylinder with a triple cylinder It is formed and pulled down in a predetermined manner, during which both edges of the film sheet are vertically sealed by a vertical sealer, a horizontal seal is formed by a lower horizontal sealer, and the internal air in the lower part of the triple cylinder is blown to the outer cylinder by a blower. It is sucked from the lower part of the cylinder, and is further re-supplied to the circulating state by being swirled in the tangential direction or from the air supply port of the above-mentioned portion, and depending on the design, it is downwardly directed into the inner cylinder from each of the spouts of the inner cylinder. The product supplied in a swirling shape and supplied from the upper stage from the filling hopper at the top is dropped as quickly as possible, so that bag making can be performed smoothly, and when the next stage is filled with cardboard etc., the product is subjected to pressure. Technical measures were taken to prevent cracks, ruptures, and the like from occurring in the sealing portion even when the sealing member was in the state.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the invention of the present application will be described below with reference to FIGS. FIG.
The same parts as those described above will be described using the same reference numerals. In the embodiment shown in FIG. 1, reference numeral 1 denotes a bag making, filling and packaging apparatus which forms the center of the gist of the invention of this application, and fills a pillow type bag 17 with a product 13 such as potato chips as in the conventional embodiment shown in FIG. This is an embodiment in which the filled bagged product 18 is made, filled and packed, and is substantially the same as the structure of the embodiment shown in FIG. 5 except for the cylinder 8 '.

The cylinder 8 'is a triple cylinder composed of an inner cylinder 81, a middle cylinder 82 and an outer cylinder 83 which are provided concentrically with a predetermined size of a ring-shaped cross section therebetween. Each is set as thin as possible, the bottom of the inner cylinder 81 and the middle cylinder 82 are closed by the ring 20, and the bottom of the middle cylinder 82 and the outer cylinder 83 are open downward, but Is closed.

An intake port is provided at a predetermined portion of the upper portion of the outer cylinder 83.
21 is provided, the inner cylinder 81 and the middle cylinder 82 are opened to the upper part and connected to the chamber 22 of a disk-shaped flange part having a predetermined height, and further, the upper lower part and the peripheral surface are closed. As shown in FIG. 4, an air inlet 23 is formed in the chamber 22 in a tangential direction, and a duct 24 communicates between the air inlet 23 and the air inlet 21. Connected to the duct
A damper 25 for adjusting the amount of passing air and a blower 26 are connected in series to 24.

The inner cylinder 81 is provided with a plurality of obliquely downwardly directed squirt ports 19, 19,... As shown in detail in FIGS.

Each of the blow ports 19 is inclined at a predetermined angle in the axial direction, and the air tangentially blown into the chamber 22 from the blow port 23 turns in the chamber 22 in the circumferential direction to form an inner cylinder. 81 and middle cylinder
It may be provided so as to incline at a predetermined angle in the axial direction so as to enter the space between 82 and descend downward while turning into the inner cylinder 81.

A predetermined portion of the outer cylinder 83 is
7 is provided to convert the film sheet 2 into a cylindrical film cylinder.
2 ', and the lower part of the cylinder 8' is shown in FIG.
5, a pair of horizontal sealers 11 and 11 are provided in a predetermined manner, and a vertical sealer 10 and pull-down devices 9 and 9 are provided in the drawing as in FIG. Tube
The filling hopper 14 is integrally connected and fixed to the upper part of the 81.

Referring to FIG. 5, the operation of the bag-making filling and packaging will be described with reference to FIG.
2 from sheet roll 3 and dancer roll 4
When it is fed to the former 7 of the bag making and filling apparatus 1 'via the guide roll 5, the pinch roll 6, etc., it is formed into a cylindrical cylindrical film 2' along the outer cylinder 83 of the triple cylinder 8 '. The lowering device 9,9 operates continuously at low speed,
It is pulled down downward (by intermittent operation or the like depending on the design) and both edges are welded by the vertical sealer 10 and the lower part is sealed by the horizontal sealers 11 and 11 which come close to and separate from each other at the lower part of the cylinder 8 '. As shown in FIG. 1, the cylindrical film 2 ′ is formed in a circular shape, and operates continuously during that time.
Alternatively, a blower that operates intermittently in synchronization with the horizontal sealer 11
The outer cylinder 83 and the middle cylinder 82 pass through the intake port 21 by the intake action of 26.
A negative pressure is formed in between, and the air in the cylindrical film 2 'at the lower part of the cylinder 8' is sucked from the open part at the lower end thereof, and the air and
The fine powder of the product described below is sucked, and is supplied into the upper chamber 22 through the blower 26 from the tangential direction through the air supply port 23 to perform a circulation operation.

When the horizontal sealers 11 and 11 are close to each other, a damper (not shown) is set at the timing of performing the lower horizontal seal, and potato chips or the like weighed to a predetermined unit weight by the weight / light weight device 12 in the preceding stage. Prescribed goods
13 is dropped from the inner cylinder 81 of the cylinder 8 ′ into the cylindrical film 2 ′ through the filling hopper 14, and in this process, the air blown from the chamber 22 between the inner cylinder 82 and the inner cylinder 81 is internally blown. Each of the gas outlets 19 opening to the cylinder 81 in a predetermined manner gushes into the inner cylinder 81 and assists the product 13 falling from the filling hopper 14 to assist the inner cylinder 81
Smooth tubular film without getting caught in 81
2 Drop into the inside.

When the amount of circulating air is adjusted according to the size of the bag or the type of the product to be filled, the adjustment can be easily made by adjusting the damper 25.

Therefore, in the cylindrical film 2 ', the internal air is sucked and discharged as much as possible, and unnecessary crushed pieces and powders of the product are also discharged, and only the product 13 is filled in a predetermined manner. Moreover, the product 13 is filled into the cylindrical film 2 'by being assisted by the blowing air from the blowing ports 19 with respect to the drop filling from the filling hopper 14. Besides, during this time,
Since the air supply port 23 is opened in the chamber 22 in the tangential direction, a swirling flow is generated in the chamber 22, and therefore, even in the ring-shaped space between the inner cylinder 81 and the middle cylinder 82. The swirling flow is generated, and the air jet of the swirling flow of each blowing port 19 is generated, and a downward swirling flow is generated on the inner surface of the inner cylinder 81, and the falling and filling of the product 13 that is dropped and filled evenly on the inner surface of the inner cylinder 81 is performed. It can assist and prevent convection of crushed pieces and powder.

Therefore, even in the process of setting the upper horizontal seal of the bag 17 with the horizontal sealers 11 and 11, the horizontal seal portion is not caught by the product powder or the like, and the complete horizontal seal is performed. The air that flows through the inner cylinder 82 and the outer cylinder 83 does not leak out of the outer cylinder 83 because it rises in the sealed space between the outer cylinder 83 and the film sheet by the vertical sealer 10.
The vertical sealing can be performed exactly as designed without being bitten at the time of thermal welding of both edge portions of 2.

When the next upper horizontal seal is performed in this manner, as shown in the lower part of FIG. 5, bagged products 18 of pillow type bags 17 filled with a predetermined amount of products 13 are sequentially formed, and the horizontal sealer is formed. Each unit is cut and discharged by a cutter set in 11, 11 and is conveyed to the bagging process.The pillow-type bagged product 18 has the air in the bag 17 removed as much as possible. By doing so, even if it is put under pressure when packing cardboard boxes etc., cracks do not occur, and the vertical seal and horizontal seal parts do not bite product powder etc. in the bag making process, so There is no defective seal, no pinholes, etc., and therefore, it is possible to display comfortably at the terminal store or the like without lowering the commercial value.

The embodiment of the invention of the present application is not limited to the above-described embodiment, and various modes such as providing a filter in a circulation duct can be adopted.

It goes without saying that various products other than potato chips can be applied to the product to be applied, and that the film sheet used can be a net-made sheet other than synthetic resin. That is.

It is needless to say that the target bag may be a gusset type bag other than the pillow type bag.

[0026]

As described above, according to the invention of the present application, a bag made of a synthetic resin such as a pillow type is basically made,
In an apparatus for filling and packaging a predetermined amount of products such as potato chips, the cylinder following the former is a triple cylinder consisting of a concentric inner cylinder, a middle cylinder, and an outer cylinder having a predetermined size of a ring-shaped cross section, The bottoms of the cylinder and the middle cylinder are sealed, the bottoms of the middle cylinder and the outer cylinder are opened, connected to the middle cylinder, the upper parts of the inner cylinder and the middle cylinder are connected to the chamber, and the blower is connected to the outer cylinder via an air inlet. In the case of bag making, filling and packaging,
The air inside the cylindrical film at the bottom of the triple cylinder is sucked, the powder of the product to be filled is also discharged as a whole, and the air inside the bag is eliminated during the bag making process, and only the product is filled. Even if the product is put under pressure such as in a box, it has an excellent effect of preventing rupture and the like, preventing the invasion of moisture and various bacteria and preventing the product value from being reduced. You.

Also, by circulating the discharged air to a chamber communicating with the upper part of the middle cylinder through an air supply port, and by providing a downward blowing port in the inner cylinder, the air can be discharged from the upper filling hopper. The product to be dropped and filled can be assisted in falling into the bag, so that the falling product can be prevented from being caught or adhered to the inner cylinder, and the product can be smoothly and quickly filled into the bag. This has the effect of being performed.

Also, crushed pieces and powders of the product are discharged and circulated, so that the horizontal sealing portion does not get caught in the horizontal sealing portion at the time of horizontal sealing, and since the outer cylinder is a sealed type, the vertical sealing is performed. In addition, since the vertical seal portion does not bite, it is possible to suppress poor sealing of the seal portion and occurrence of pinholes, so that an excellent effect that the commercial value does not decrease in this respect is also exhibited. .

Although the air circulation path is a triple cylinder because it can use a gap having a ring-shaped cross section between the inner cylinder, the middle cylinder, and the outer cylinder, the inner cylinder, the middle cylinder, and the outer cylinder can be used. Even if the thickness between the cylinders is reduced, sufficient strength and rigidity can be maintained, vibrations and the like in the middle can be prevented, and the durability can be improved.

Therefore, the cross-sectional area of the inner cylinder can be made sufficiently large, and there is an effect that the product can be smoothly dropped and filled.

[Brief description of the drawings]

1 to 4 are explanatory diagrams of one embodiment of the invention of this application.

FIG. 1 is a sectional view of a main part.

FIG. 2 is an enlarged vertical cross-sectional view of a fume port.

FIG. 3 is an enlarged transverse sectional view of the same.

FIG. 4 is a cross-sectional view of a chamber portion.

FIG. 5 is an overall schematic perspective view of a bag making / filling / packaging apparatus of a general mode.

[Explanation of symbols]

 8 '... double cylinder 81 ... inner cylinder 14 ... filling hopper 13 ... product 7 ... former 10 ... vertical sealer 11 ... horizontal sealer 21 ... intake port 26 ... blower 1,1' ... bag making and filling equipment 24 ... intake duct 83 ... Outer cylinder 82 ... Middle cylinder 23 ... Air supply port 19 ... Fume port 22 ... Chamber

Claims (4)

(57) [Scope of request for utility model registration] A double cylinder having a gap having a ring-shaped cross section has a filling hopper at an upper part of an inner cylinder, a former at a predetermined portion of an outer cylinder, a vertical sealer at a lower outer side of the former, and a vertical sealer. In a bag-making filling and packaging apparatus having a horizontal sealer having a cutter at a lower part of a vertical sealer and having an outer cylinder provided with an intake port and connected to a blower,
The double cylinder comprises an inner cylinder connected to a filling hopper, an outer cylinder having an intake duct, and a triple cylinder of a middle cylinder between the two cylinders.A bottom portion between the middle cylinder and the inner cylinder is closed, and an upper portion is connected to the blower. A bag making / filling / packaging device, which is connected via an air supply port, and has a plurality of blow ports connected to the inner cylinder and opened in the inner cylinder. 2. A bag making / filling / packaging apparatus according to claim 1, wherein said blowing port is slanted downward inward. 3. The bag-making filling and packaging apparatus according to claim 1, wherein said air supply port is opened in a flange-shaped chamber connected to the upper part of the outer cylinder and the middle cylinder. . 4. A bag making and filling apparatus according to claim 3, wherein said air supply port is opened in a tangential direction to said chamber.