JPH08301209A - Method for obtaining bag which is filled with article from bundle of tubular net - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain bags each filled with products such as all kinds of foodstuffs normally to be put entirely or in a fixed quantity into a bag or filled not only with all kinds of general products or items but also with special fruits or vegetablss from a batch of tubular nets. SOLUTION: Tubular nets 9 in a fixed quantity or batches are arranged around a perpendicular tube 1, and a bag 25 being closed at its lower end while being open at its upper end is formed therefrom, and desired products are filled into the bag 25 by a product loading means, and then the upper end of the bag 25 is closed and cut off and the bag 25 is separated from a remaining part of the batches of the tubular nets 9.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a means for loading and unloading articles in which a fixed amount or bundle of tubular nets is arranged around an upright tube to form a bag having a closed lower end and an open upper end. It relates to a method for obtaining a bag full of articles from a bundle of tubular nets, which comprises stacking the desired articles in the bag, closing the top of the bag and cutting and separating the bag from the rest of the bundle of tubular nets.

[0002]

BACKGROUND OF THE INVENTION Agustin Dauder G is a known automatic machine for continuously forming and closing a net bag obtained from a tubular net.
It is the subject of Spanish Patent No. 475,372 to uardiola, which is formed from an assembly of two vertically arranged telescoping tubes, one fixed inner tube and one sliding outer tube. Characteristically, a third removable tube sandwiching a fixed quantity of tubular nets arranged around the upper part of the assembly, together with a hopper for feeding the articles, all three of which are to be loaded, especially correctly weighed Interlock at the top.

The sliding tube is actuated below the shaft by an adjustable stroke cylinder, pulling on the desired net portion to accommodate the quantity of articles to be dispensed and form the bag into the proper volume, and immediately beginning. Return to the position. Means are provided for sandwiching the supplied net portion. The means is formed by two sets of two blades each, operating on one side of the net, moving along a horizontal plane, traversing the net and flush with the lower end of the initial position of the sliding tube. .

The two sets of blades lie on top of each other in their operating position, the upper set constituting the support for the bottom of the bag which receives the articles discharged by the hopper into the tube. And the upper set of blades are supplied with a narrow passage cooperating with the angled edges of the opposite set of blades, clamping the net mentioned above, pinching and cutting the head into the upper set of blades. It is ensured that it is done behind the narrow passages in contact and that the upper set of blades lies on the virtual axis of the telescoping tube assembly. The head ensures that it closes the mouth of the bag to be formed and closes the bottom of the next bag, then the blade returns to the set limit position,
A new cycle begins.

The telescopic tube assembly is mounted on a conventional support that rotates or swivels so that the removable tube can support the net to be removed. This rotating support may comprise another removable tube filled with a tubular net, which is reversible in position by rotating the normal support of the removable tubes. And the other tube will be installed in place of the fresh tube. Each tube has its lower end fitted to two rings and an annular spring is located between the two rings for use as a braking means and to prevent the net from sliding down when not needed. .

The method carried out by the machine described above is
Basically load a fixed amount of tubular net around the outer removable tube and manually lower the net until the net projects above the removable tube and under the closure head,
A closure is provided to close the lower opening of the net across the lower open end of the net, and two sets of blades are overlapped to support the bottom of the formed bag. From the hopper located on the upper end, unload the goods into the bag,
Move the blade set until the full bag comes under the same set of blades, and start the pinching operation to cut the head that closes the mouth of the full bag. Close the bottom,
Similarly, it therefore limits the support and ensures that the full bag is separated from the rest of the tubular net, initiating a new cycle as explained above.

The drawback of the method carried out by the machine described above is that the article is from a predetermined height which is delimited by a three tube nested tube assembly of the machine to the bottom of a bag closed at the bottom. Must be dropped and the original article hits the rigid support at the bottom of the bag that receives the article being expelled in the hopper. And the height of such telescoping tube assemblies is too high to store a large amount of tubular nets or to reduce the dead time of exchanging tubes or filling the same tube with another bundle of tubular nets. This is not suitable for soft articles, ie for example some fruits.

[0008]

SUMMARY OF THE INVENTION The object of the present invention is to provide all types of foodstuffs and generally all articles or items that can be packed from a bundle of tubular nets into a bag, usually full weight or quantity set. It is to provide a method of obtaining a bag filled with articles such as special fruits and vegetables.

The tubular net is usually made of synthetic resin material, but materials such as plant and paper can also be used.

[0010]

According to the present invention, a bag 25 having a fixed amount or a bundle of tubular nets 9 disposed around an upright tube 1 and having a closed lower end and an open upper end is provided by the present invention. The desired bag is loaded into the bag 25 from the article loading / unloading means, the upper end of the bag 25 is closed, and the bag 2 is cut.
A method for obtaining an article-filled bag from a bundle of tubular nets, which separates 5 from the rest of the bundle of tubular nets 9 a) first through the upper opening of the tube 1 into the tubular net 9 inside the tube 1. The upper end of the tubular net 9 is lowered and the tubular net 9 is lowered until the open end of the tubular net 9 projects below the tube 1 and a closing means is applied to the open end of the tubular net 9; 1, the tubular net 9 is lifted so as to reach a predetermined height, a bag 25 having an open upper end of the tubular net 9 is formed, and articles are loaded and unloaded into the bag 25. Of the two closing means by lowering the tubular net 9 inside the tube 1 until it projects downwards, applying the closing means to the upper end of the bag 25 and another separating means located slightly above the first means. Cut the net sandwiched at the midpoint and use the remaining part of the tubular net 9. The resulting full bag 25 is separated, and d) the working steps b) and c) are repeated until a new bag 25 full of articles is obtained until the bundle of tubular nets 9 stored in the tube 1 is exhausted and the same tube It is solved by the fact that working step a) is restarted in the tube 1 which is loaded with another bundle of tubular nets 9 around 1.

[0011]

DETAILED DESCRIPTION OF THE INVENTION The purpose of the method of obtaining a bag filled with articles from a bundle of tubular nets according to the invention is to solve the above-mentioned disadvantages of the known methods and to handle the articles carefully with a suitable bag; Can be of any desired length and therefore may be initially loaded with a large amount of net; reducing the dead time required to replace empty tubes with full tubes at the desired rate. It gives the above-mentioned benefit that work efficiency is improved.

It is worth noting that the length of the tube holding the tubular net of the known method is limited by the height at which the article is dropped, especially for soft articles or indeed such articles are known. The height of the tube should be as short as possible if it is not handled. The spirit of the implementation of the method of the present invention provides the above-mentioned benefits in addition to other benefits readily apparent from the method embodiments described below for a brief understanding of the features mentioned above. . At the same time, accompanying the detailed functional description, several drawings are presented at the end of the description, which illustrate practical embodiments of the method in an illustrative sense rather than limiting the scope of the embodiments.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in more detail based on the preferred embodiments with reference to the accompanying drawings. In order to better understand the method implemented by the machine, the machine associated with the method will first be described. The mechanical device consists of an outer ring 1a or an axial collar (of which the edge is therefore edged) made of a suitable material placed at the upper end of the vertical tube 1 so that the tubular net slides better and holds the tubular net to some extent. Is formed from the vertical tube 1 having The tube 1 stands upright on a support 2 which rotates around a vertical column 3 which comprises a circular column forming part of a framework 4 of the machine, said machine being said column 3, vertical column 5 (column 3). Is parallel to and has the same structure as the column 3) and beams 6 and 6a fixed to the two columns. The framework 4 is fixed upright on the closing and cutting device 7 (partially and diagrammatically shown in FIG. 1).

The rotary support 2 comprises a short funnel 8 (shown only in FIG. 1) whose function is to accommodate a tubular net 9 (FIG. 1), with a creased tubular net loaded around the pipe 1. Has been done. Before the tubular net is loaded around the tube 1, the support 2a and the tube 1b are initially installed in the position shown in broken lines in FIG. The position indicated by the broken line, if necessary, is obtained by rotating the support 2 with the empty tube 1 manually or automatically. When the same tube 1b is filled around the tube 1b with a suitable bundle or amount of tubular nets, the tubes 1b are returned to the rotary support 2 either manually or automatically, already with the tubular nets in place. Reach the working position shown in.

The machine comprises two pairs of arms 10 and 11, the upper ends of the arms being pivotally connected to the beam 6a and two transverse axes 12 and 13 lying within the respective free ends of the arms (FIG. 2). ), Supported and guided for rotation between their free ends, the shafts operating without movement, said transverse shafts 12, 13 being provided on the front face of a machine having grooved pulleys 14 and 15, respectively. (Schematically only shown in FIG. 1), with each pair of frustoconical rolls 16 and 17 coated with a rough surface rubber or other material that has cohesive properties, with both abscissas extending into overlapping protrusions. .

Both pairs of pivotally connected arms 10 and 11 are interconnected by a pneumatic cylinder 18, which may be hydraulic, the main part of which is between one pair of two pairs of arms, In this embodiment, the pair of arms 11 is pivotally connected, and the stem of its main part is pivotally connected to the other pair of arms, in this embodiment the pair of arms 10. When the pneumatic cylinder 18, that is, as shown in FIGS. 1 and 2, is in the least loaded state, the two pairs of rollers 16 and 17 sandwich the tubular net 9 and hit the tubular ring 1a. When the pneumatic cylinder 18 is activated, the stem extends from the main part and the pairs of both arms 10 and 11 move away from each other and hence the roller 1
The pair 6 and 17 also move away from each other from the tube ring and the tubular net around the tube. When the tube is empty, ie the tubular net is gone, the latter (roller) is removed and a tube filled with a new bundle of tubular nets is placed in the working position.

The gear motor 19 (shown only in FIG. 1) is interlocked with four internal gears, which are cogwheels in this embodiment, to rotate in one or the other direction, and the first and last cogwheels are rotated. Gears are connected to the two shafts that in turn connect the two pairs of arms 10 and 11 with axial supports, and the respective grooved pulleys 21 and 22 connected to them are grooved via their respective drive belts. It is connected to pulleys 14 and 15. The grooved pulleys 14, 15, 21 and 22 may be replaced by simply matching cogwheels, the drive means between the appropriate pulleys then being formed from drive chains which mesh between the cogwheels. To be done.

A closing and cutting means 23 is shown diagrammatically in FIG. 1 and forms part of a closing and cutting device 7 having a detector for sensing a bag which has already been filled with the desired article and is closed. . The detector of the closing / cutting device 7 is the gear motor 1
9 is controlled to stop the gear motor when the bag 25 is not present.
This usually occurs when the tubular net in the tube 1 is gone, or when the traction means fails or malfunctions.
It occurs when the drive means of the traction means and / or the traction means oscillate a pair of pivotally connected arms to each other.

After placing the tube 1b in the working position, that is to say in the position of the tube 1 according to FIG. 1 which has already been loaded with a tubular net around it, the method carried out by the above-mentioned machine is as follows. The top of the tubular net is lifted and the ring 1
Inserted into the tube through the upper opening of the tube, moving over the edge of a, until the lower open end of the tubular net 9 projects underneath the tube 1, then a normally tight closure to close the same open end. A closure means forming a part is applied to its open end.

When the tubular net is first inserted inside the tube, the pair of rollers 16 and 17 is positioned away from the tube to allow the insertion operation described above and the upper end of the tubular net within the tube begins to insert. When the two pairs of rollers hit the tubular net and the gear motor 19 rotates to the right, the two pairs of rollers rotate and thus raise the outer part of the tubular net to feed the tubular net into the tube 1. , The open end of the net descends into the tube until the open end of the net projects underneath the same tube.

A closing means, eg a closing part, is then applied to said open end and the direction of rotation of the gear motor is reversed so that the pair of rollers 16 and 17 rotates in opposite directions. This causes the outer part of the tubular net to descend and the inner part of said net to be raised until the closed free end 26 below the net reaches a predetermined height, forming a bag open at the top, The bag is placed on top of the area where the items to be packed are to be unloaded.

The articles were unloaded into the bag above the rim of the tube 1 and the ring 1a of the tube 1 and the tubular net was then unloaded inside the tube again, still open mouth full load. The rotation of the two pairs of rollers 16 and 17 is reversed until the bag projects below the tube 1. Closing means, such as closure 27, and closure 2 slightly separated from the top of said closure 27
Other means, such as 8, are applied to the top of the bag. The sandwiched net at the midpoint of both closures 27 and 28 is cut by the cutting means of the closing and cutting means 23, so that the resulting full bag 25 is separated from the rest of the tubular net. To do. A label with the desired indicia and information is suitably applied to the bag and suitably attached by closure 27 or other means (eg, the label itself is adhesive or sealed).

The above-mentioned working steps are repeated until the tubular net 9 stored in the tube 1 is exhausted from the upward movement of the tubular net inside the tube 1 in order to obtain a new bag filled with articles. The resulting fully loaded and closed bag is
It may be transported to a temporary storage position and slid down by conventional means.

When the bundle of tubular nets has been used, the support 2 and the empty tube 1 are moved to the position of the tube 1b and the support 2a, as indicated by the broken line in FIG. There are two different formats.
One type replaces the empty tube on the support 2a with a tube already filled with the respective bundle of tubular nets, the other loads the bundle of tubular nets around the empty pipe. To do. In both cases, the latter (Fig. 2)
Although it does not show a suitable bundle of tubular nets, it rotates in the opposite direction until the support reaches the position shown in FIGS. In order to place a tube filled with a suitable bundle of tubular nets in the working position or to remove an empty tube, the pneumatic cylinder 18 is moved towards its end to move the arms 10 and 1
The two pairs of 1 (and thus the rollers 16 and 17) are pulled away from each other, placing the tube already filled with the bundle of tubular nets in the working position (FIG. 1), stopping the pneumatic cylinder 18 or in the opposite direction. It is actuated and the two pairs of arms are pulled back towards each other to bring the two pairs of rollers 16 and 17 against the net and tighten the net towards the ring 1a.

The various work steps described above are controlled and coordinated by the program processing unit. Therefore, all the steps carried out in the machine are automated, which results in convenience in terms of machine operation and work per unit time.

[0026]

As described above, it is possible to automatically and efficiently bag various kinds of articles whose total weight or amount is preset without damaging them.

[Brief description of drawings]

FIG. 1 is a front view of a mechanical device.

FIG. 2 is a plan view of a mechanical device rotated by 90 ° from the front view of FIG. 1 (a tubular net and other means are not shown for simplification)

[Explanation of symbols]

 1 Pipe 2 Support 3 Support 4 Frame 5 Vertical Support 6 Beam 7 Closing / Cutting Device 8 Funnel 9 Tubular Net 10,11 Arm 12,13 Horizontal Shaft 14,15,21,22 Pulley 16,17 Roller 18 Cylinder 19 Gear Motor 20 Gears 23 Closing / Cutting Means 24 Detectors 25 Bags 26 Free Ends 27, 28 Closing Parts

Claims (1)

[Claims] 1. An unloading of goods by arranging a fixed amount or bundle of tubular nets (9) around an upright tube (1) to form a bag (25) closed at the lower end and open at the upper end. The desired article is loaded into the bag (25) from the bagging means, the upper end of the bag (25) is closed and cut, and the bag (25) is separated from the rest of the bundle of tubular nets (9). In a method of obtaining a bag full of articles from a bundle of nets: a) first inserting the upper end of a tubular net (9) inside the tube (1) through the upper opening of the tube (1),
Applying the closing means to the open end of the tubular net (9) until its open end projects below the pipe (1), b) the closed free lower end of the tubular net (9) is the pipe (1) The tubular net (9) is lifted so as to reach a predetermined height inside, a bag (25) having an open upper end of the tubular net (9) is formed, and the bag (25) is loaded with an article, c). Lower the tubular net (9) inside the tube (1) until the full bag (25) projects below the tube (1), the closing means at the upper end of the bag (25), and slightly on the first means. Applying another separating means located above, cutting the net sandwiched between the two closing means, separating the full bag (25) obtained from the rest of the tubular net (9), and d) The work steps b) and c) are repeated until the bundle of tubular nets (9) stored in the pipe (1) is exhausted. , A working step a) is started again in the tube (1) with a new bag (25) full of articles and a bundle of another tubular net (9) around the same tube (1) A method characterized by.