WO2002000423A1 - Mold-design and improvement to an automatic folding-gluing machine for carton bags with bellows - Google Patents

Abstract

The invention relates to a special mold-design for manufacturing carton bags. The mold-design is a piece of swaged carton enabling a linear series of steps by a modified folding-gluing machine to be carried out to finish said bag. The process is concluded by rotating the bag with the purpose of gluing the base thereof. All said steps are carried out automatically.

Description

 MOLD-DESIGN AND IMPROVEMENT OF FOLDING MACHINE-CARDBOARD BAG PICKER WITH FUELLE IN AUTOMATED FORM

OBJECT OF THE INVENTION

The present invention consists of a mold-design that allows the manufacture of 10 cardboard bags with bellows, by means of a fully automated machine-bending machine-bender,

BACKGROUND

15 The way of manufacturing cardboard bags or from natural cellulose, for different uses, over the years have been done by hand.

Its first origins consisted of making molds on which the 20 artisans cut the sheets of paper to different sizes, so that they manually folded the pieces of material, which would give rise to the bags, then they were made folds, then these doubles they rubbed to acquire the form of a bag.

25 The bases of the bags were and are in some cases glued, or simply a piece of any thicker material is placed to prevent them from collapsing, so that things inside them are not removed.

Most of the bags are manufactured by means of a gluing machine - 30 conventional bending machine, which is available for purchase For the general public, the manufacturing process is done half through the machine and the other part is finished with the help of experienced personnel to make bags (manually).

The advantage that this mold has - design and improvement of a folding machine - gluing of cardboard bags with bellows is that the entire manufacturing process is automated, so it is not required from the hand of man, the mold - design of the The bag is placed by means of an automatic feeder to the machine, only the cord that makes the handle handles is tied and packed.

DETAILED DESCRIPTION OF THE INVENTION

The mold is described below - design for the bag manufacturing process through the mold - soft cardboard design, by means of a modified bending machine - gluing machine, the process steps are described below, with the support of the following figures :

1. The mold - design to make the bag is a mold that in its structure consists of four sections (Fig. 1,1), one of them is the upper flap and on the other side it is called the upper face; the second is the lateral flap and on the other side it is called the left lateral bellows; the third part is the lower flap and on the other side it is called the lower face, finally, the fourth part is the side flap and on the other side it is called the right lateral bellows, in this section there is a glue tab. The side flaps in half consist of a swell so that it can be easily folded.

Between the upper and lower flap and the side flaps are also soft; on the other hand, between these same parts, they have three cuts in angle, with a diagonal finish, in the interior cut of the angle and throughout it is smooth; with all the soft parts, it will allow the appropriate folds to be made so that they are glued; On the opposite side to the cuts, the section of the mold - design is straight, with only four perforations to insert a pair of cords, which will serve as handles.

Having the mold - design ready (Fig. 1,1), it is placed in the machine by means of an automatic feeder (Fig. 2,1).

2. The product enters immediately on conveyor belts (Fig. 2.2), which guide the mold - bag design, towards a folding guide (Fig. 2,3); These guides allow the right side bellows to be folded along the entire length, by means of the suction that is located in the middle of the mold - design bellows.

3. Next, a hook pulls the glue tab, the hook provided on the machine in the strategic place, that when passing the mold - design, the hook returns to its original position magnetically, that is, working by means of a magnet ., with a smaller guide allows consistent bending. Simultaneously to steps 2 and 3, the left side bellows are folded on the left side along the entire bellows, by means of a bending guide.

4. For a uniform, even and unchanged bending, along the bellows, the mold-design passes through a compression band that makes the folds remain compressed, that is, completely flattened the right side bellows, the bellows left side and right flap (Fig. 3.1) By means of an intelligent reader eye it detects the glue side tab, which will be where the rubber is deposited, the intelligent reader fires the rubber automatically, throwing a layer of hot rubber on the side or tab of the bag.

Simultaneously with the predecessor point, by means of a boat band (bouncing, up and down), the upper half of the bag, the upper flap is folded and thrown in order to join with its similar part, allowing adhesion with the glue tab; The drying of this paste is almost instantaneously, due to the rubber used.

Immediately the bag is moved by a special conveyor belt which manages to lift the top flap of the bottom, by means of a hook that keeps it bent backwards, when the top flap of the bottom is folded it pulls to the left and right bellows, remaining in what the base will do two triangles in each bellows, the side flaps and two flaps the top and bottom.

Next, an intelligent reader eye enters which detects the product, as the top flap of the bottom is held up, and by means of an inserter insert it places a square or rectangular bottom (Fig. 4.1) depending on the geometric figure that You will have the bag already finished, which should be equal to or similar to the surface of the base of the bag, in order to provide resistance to the bottom, this bottom is optional if you wish to install it.

The product enters a second automatic feeder, which throws the bag into special bands, which in a band-like guide makes the folds in the side flaps of the bottom, these side flaps fall or cover the fierce triangles made by the folds of the bellows, of This way the previously placed bottom is in the right place.

11. A reader eye immediately detects the product and launches hot rubber in the already bent side areas, by means of an automatic injector.

12. A double hook pulls the top flap of the bottom, so that it is glued to the place where the rubber was thrown, covering half of the bottom, that is, covering half of the side flaps, at the same time accommodating the bottom placed previously.

13. The product, following its process passes through a speed differential, in the conveyor belts it is rotated from right to left 90 °, to continue circulating in the same direction of the band, but in different position, which will it will allow to make the last paste, without the 90 ° rotation the process of manufacturing the bag would not be possible.

14. A final reader eye detects the bag and throws hot rubber across the bottom.

15. The bottom bottom flap (Fig. 5.1) is folded by means of a system of guide bands, which throw the flap upwards, sticking automatically, thus complementing the folding and gluing of the bag, Fig, (5.1).

16. The bag enters a drying tunnel, where the bonding of the product is fully secured. 17. It is worth mentioning that the entire process is carried out in a linear manner, that is, the entire process is carried out, without giving volume to the box.

18. At the exit of the exit tunnel there is a receiving table.

19. Quality control is performed on the receiving table.

20. The handle-shaped cords are placed on the finished bag.

21. If you pass the quality control it will be sent to be packed.

Next, the gluing - bending machine is described, it differs from conventional machines sold in the market by the following adaptations:

1. The first part of the machine will be made to produce linear gluing boxes with pre-wounds, boxes with internal compartments, pillow boxes, double-wall boxes and sales products with special finishes. This machine has a tunnel of circulation of the product of forty seconds from the entrance to its exit. It is also provided with an attachment that allows the final folding of the product, which gives it enormous versatility in the manufacture of products of special manufacture.

2. The second part is made up of parts of a gluing - bending machine, which has a circuit with special characteristics at the rear to achieve the final assembly of the product.

3. It also has the following special attachments: 3.1 Automatic attraction supply by means of compressed air suction.

3.2 An attachment to manufacture automatic bottom boxes.

3.3 Redirecting unit, which rotates the product being processed 90 °, thus allowing it to be finished.

3.4 A special inserter that allows a bottom to be placed during the bending and gluing process in order to give greater strength to the base of the product.

3.5 An ultra-fast drying hot rubber application system.

3.6 A system controlling brain.

Claims

Having described the present invention as background, this is considered a novelty, so I claim my property contained in the following clauses: 1 Mold-Design and improvement of a folding machine-beater of cardboard bags with bellows in an automated way, characterized in that to manufacture the bag requires a special mold-design softened which is formed by: the mold-design to make the bag It is a mold that in its structure consists of four sections: one of them is the upper flap and on the other side it is called the upper face, the second is the side flap and on the other side it is called left lateral bellows, the third part it is the bottom flap and on the other side it is called the bottom side, finally, the fourth part is the side flap and on the other side it is called the right side bellows, in this section there is a glue tab; the side flaps in half consist of a swell so that it can be easily folded; between the upper and lower flap and the side flaps are also soft; on the other hand, between these same parts, they have three angled cuts, with a diagonal finish, in the interior cut of the angle and throughout it is smooth; With all the soft parts, it will allow the appropriate folds to be made so that they are glued, on the opposite side to the cuts, the section of the mold-design is straight, with only four perforations to insert a pair of cords, which will serve as handles. 2 Mold-Design and improvement of a cardboard bag bending-gluing machine with bellows in an automated way, in accordance with clause 1, characterized in that to make the folding it is required that the parts that conform it are softened to give the finishing of base. Mold-Design and improvement of cardboard bag bending-gluing machine with bellows in an automated way, in accordance with clauses 1 to 2, characterized in that the folding of the base is achieved through the formation of triangles of the base, by middle of the bellows. Mold-Design and improvement of cardboard bag bending-gluing machine with bellows in an automated way, in accordance with clauses 1 to 3, characterized in that the following special attachments include the bending-bending machine: automatic attraction supplier by compressed air suction medium; an attachment to manufacture automatic bottom boxes; redirector unit which rotates the product being processed 90 °, thus allowing it to be finished; a special inserter that allows a bottom to be placed during the folding and gluing process, in order to give greater resistance to the base of the product; an ultra-fast drying hot rubber application system; A system controller brain. Mold-Design and improvement of cardboard bag bending-gluing machine with bellows automatically, in accordance with the clause 4, characterized in that the machine contains an automatic feeder, conveyor belts and bending guides. Mold-Design and improvement of carton bending-gluing machine with bellows in an automated way, in accordance with clauses 4 and 5, characterized in that it contains special hooks that allow guiding the flaps and bellows in order to place them according to needs, keep them folded to where it is required to make the bag. Mold-Design and improvement of a bending-gluing machine for cardboard bags with bellows in an automated manner, in accordance with clauses 4 to 6, characterized in that by means of a speed differential in the conveyor belts the product is rotated 90 ° to perform the last hit, this turn being essential.