JPH08196998A - Apparatus for screening broken bag from can and bottle - Google Patents

Abstract

PURPOSE: To separate automatically broken bags from cans and bottles. CONSTITUTION: The inside of a porous rotary cylinder 2 is divided into a negative pressure chamber 4 and a positive pressure chamber 5 by a fixed partition wall 3. Waste W of a mixture of bags (a) broken by a bag breaker and cans and bottles (b) is supplied to the negative pressure chamber 4 side of the cylinder 2. The broken bags (a) are attracted by the suction force of the negative pressure chamber 4 to be separated from cans and bottles. In this way, by supplying waste of a mixture of broken bags, cans and bottles to the negative pressure chamber of the rotary cylinder, the broken bags attracted by the suction force of the negative pressure chamber are transferred with the cylinder, while cans and bottles are not attracted and fall down so that the broken bags can be separated surely from cans and bottles.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic sorting device for storing bags (hereinafter referred to simply as "bags") broken by a bag breaking machine and cans.

[0002]

2. Description of the Related Art Can bottles generated in general households or vending machines are stored in a storage bag, which is then crushed by a bag crushing machine for sorting, and the crushed bags are stored. A means for selecting a broken bag and a can bottle manually transferred by a conveyor belt together with a can bottle, a means for selecting a broken bag by an air classifier, and the like are adopted.

[0003]

However, in this case, the leftover liquid is attached to the can bottle and the ash and other dusts of cigarettes are mixed in, and the sorting work is extremely troublesome, and especially the removal of the broken bag is required. Is a dirty work in which the worker himself is also contaminated. Further, when using a wind power sorter, there are problems that the installation area becomes excessively large and the sorting capacity is not sufficient. In view of these points, the present invention has an object to automatically separate and sort the broken bags from the cans and to improve the sorting ability.

[0004]

In order to achieve the above object, the apparatus for sorting broken bags and cans according to the present invention is designed such that the inside of a rotating rotary cylinder is negatively pressured by a partition wall which is fixed. The rotary cylinder is divided into two chambers, and a large number of perforations are formed in the rotary cylinder, and the object to be treated in which the storage bag crushed by the bag crushing machine and the cans are mixed is the negative pressure chamber of the rotary cylinder. The gist of the invention is that the bag is supplied to the side, the bag is sucked and held by the suction force of the negative pressure chamber, and the bag is separated from the cans.

According to a second aspect of the present invention, the rotary cylinder comprises an outer cylinder having fine holes, an inner cylinder having relatively large diameter holes therein, and a filter interposed between the cylinders. What is done is the gist.

[0006]

[Operation] Among the objects to be processed, the bag is adsorbed and held on the surface of the rotary cylinder on the negative pressure side, and is moved by the rotation of the rotary cylinder, and is released by moving to the pressurizing chamber side. At this time, the cans and the like are not adsorbed by the rotating cylinder by their own weight, and fall down there. As a result, bags and cans are easily classified. At this time, when the rotary cylinder is a double cylinder inside and outside, and a filter is interposed between them, the bags are not sucked into the suction holes of the rotary cylinder, and the separation on the pressurizing chamber side is easy.

[0007]

Embodiments FIGS. 1 to 4 show a first embodiment of the present invention. The sorting device 1 includes a rotary cylinder 2 and a fixed partition wall 3 that divides the inner hole of the rotary cylinder 2 into two chambers. One chamber is a negative pressure chamber 4 and the other is an atmospheric pressure chamber 5. The partition wall 3 is attached to a fixed cylinder 6 having a small diameter that is concentric with the rotary cylinder 2. The fixed cylinder 6 is formed with a perforation 7 that opens only on the negative pressure chamber side, and the fixed cylinder inner hole is provided with an appropriate suction mechanism (illustration). (Omitted). Reference numerals 8 and 9 denote support frames that support both ends of the fixed barrel 6.

The rotary cylinder 2 is formed with a large number of small-diameter perforations 10, flanges 11 and 12 are attached to both ends, and rotatably supported by bearings 13 and 14 between the flange and both ends of the fixed cylinder. . Reference numerals 15 and 16 denote packing materials for airtightness, which are attached to the front end portion and both side portions of the partition wall 3. Reference numeral 20 denotes a large-diameter internal gear attached to the inner peripheral portion of one end of the rotary cylinder, which is a drive gear 21 attached to the drive motor M.
Mesh with this. Reference numeral 22 denotes a scraper provided for the rotary cylinder 3.

At this time, the rotary cylinder 3 may be formed as a single cylinder as shown in FIG. 3 and the perforations 10 may be formed therein. In this case, however, a part c of the bag breakage a is formed in the perforations 10. When sucked, this portion may be caught in the perforation 10 and may be difficult to peel off. In order to prevent this suction, the perforations 10 may be small holes, but this easily causes clogging due to dust or the like.

In order to prevent this, as shown in FIG. 4, the second aspect of the invention comprises the rotary cylinder 2 which is composed of inner and outer double cylinders 30 and 31 and a filter 32 inserted between them. In this case, even if the perforation 10 is relatively large, there is no possibility that a part of the bag will be sucked and caught in the perforation 10. By providing the filter 32, fine dust is also adsorbed and does not accumulate inside the rotary cylinder. Of course, the outer cylinder 3
0, the filter 32 is removable. 33 is the inner cylinder 31
The reference numeral 34 designates the distance of the airtightly-maintaining packing and the inner / outer cylindrical body.

In FIG. 1, reference numeral 40 denotes a conveyor for transferring an object to be processed, and 41 denotes a chute, but the object to be processed may be directly supplied from the bag breaking machine to the negative pressure side of the rotary cylinder 2 through the chute. Reference numeral 42 denotes a partition wall arranged below the sorting apparatus 1 for dividing the bag and the can.

In the above structure, the object W to be processed, which has been dropped and transferred by the transfer conveyor 40 or from a bag breaking machine (not shown), is supplied to the suction side of the rotary cylinder 2 via the chute 41. . As a result, the bag breakage a is attached to the surface by the suction force of the rotary cylinder 2 and moves as the rotary cylinder rotates, and the cans b fall as it is. When the broken bag a attached to the rotary cylinder 2 moves to the atmospheric pressure chamber side of the rotary cylinder 2, it loses its suction action and falls. Alternatively, it is scraped off by the scraper 22. As a result, the broken bag a and the can bottles b are separated.

Next, FIGS. 5 and 6 show another example of the sorting apparatus. The preceding example shows an example in which the atmospheric pressure chamber 5 is set to the atmospheric pressure. In this example, the atmospheric pressure chamber of the preceding example is used as a pressurizing chamber so that the pressurized air is forcedly blown into the atmospheric pressure chamber side. That is, the sorting device 50 divides the inside of the rotary cylinder 51 by the partition wall 52,
Support bosses 53 and 54 are attached to both ends of the partition wall 52, and are supported by support frames 55 and 56 by the bosses 53 and 54, and one chamber partitioned by the partition wall 52 is a negative pressure chamber 57 of negative pressure. A suction pipe 58 opening to the negative pressure chamber 57 is penetratingly supported on one boss 53, and a positive pressure pressurizing chamber 60 is formed on the other boss 53, and a pressure air supply pipe 61 opening to the pressurizing chamber 60 is provided. The boss 53 is penetrated and supported. Other structures are the same as in the previous example, and the same parts are designated by the same reference numerals and description thereof is omitted.

With this structure, when the bag breakage a attached to the rotary cylinder 51 moves to the pressure chamber side, it can be reliably peeled off and released by the jetted pressure air.

[0015]

As described above, according to the present invention, the inside of the rotating rotary cylinder is divided into two chambers, one of which is a negative pressure chamber, by the fixed partition wall, and a large number of perforations are formed in the rotary cylinder. From the above, by supplying the object to be processed in which the storage bag crushed by the bag crushing machine and the cans and the like are mixed to the negative pressure chamber side of the rotary cylinder, the bag is sucked by the suction force of the negative pressure chamber. By rotating with the rotating cylinder, the cans and the like are not sucked, and by dropping as they are, the two can be reliably and accurately separated.
At this time, when the rotating cylinder is composed of an outer cylinder having a small hole, an inner cylinder having a relatively large diameter hole inward, and a filter interposed between the two cylinders, the rotating cylinder is broken. A part of the can is not sucked into and caught in the perforation of the rotary cylinder, and it can handle dirty bags such as residual liquid and butts, and can reliably perform peeling on the pressure chamber side. This has the effects of automating sorting of items and bags and saving labor, and significantly reducing the installation area compared to a wind power sorter.

[Brief description of drawings]

FIG. 1 is a vertical sectional view of a sorting apparatus of the present invention.

FIG. 2 is a cross-sectional view taken along the line XX in FIG.

FIG. 3 is an operation explanatory view when the rotary cylinder has a one-piece structure.

FIG. 4 is an operation explanatory view of the rotary cylinder according to the second invention.

FIG. 5 is a vertical sectional view of another embodiment of the present invention.

6 is a cross-sectional view taken along the line YY in FIG.

[Explanation of symbols]

 1 Sorting Device 2 Rotating Cylinder 3 Partition Wall 4 Negative Pressure Chamber 5 Atmospheric Pressure Chamber 10 Perforation 30 Outer Cylinder 31 Inner Cylinder 32 Filter 50 Sorting Device 51 Rotating Cylinder 52 Partition Wall 57 Negative Pressure Chamber 60 Pressurizing Chamber W Workpiece a Bag-breaking b Bottles

Claims (2)

[Claims] 1. The inside of a rotating rotary cylinder is divided into two chambers, one of which is a negative pressure chamber, by a fixed partition wall, and a large number of perforations are formed in the rotary cylinder, and the bag is broken by a bag breaking machine. The object to be treated in which the storage bag and the can bottles are mixed is supplied to the negative pressure chamber side of the rotary cylinder, and the bag is sucked and held by the suction force of the negative pressure chamber to be separated from the can bottles. A device for sorting broken bags and cans. 2. The rotating cylinder is composed of an outer cylinder having a small hole, an inner cylinder having a relatively large diameter hole formed therein, and a filter interposed between both cylinders. Claim 1
A device for sorting the broken bags and cans described above.