JP4461307B2 - Bag removing method and bag removing apparatus - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a bag removing method and a bag removing apparatus that can efficiently and reliably remove a bag when, for example, an expired bag-like food is made into feed.
[0002]
[Prior art]
As is well-known, supermarkets and convenience stores sell udon, soba, somen noodles, bread, konjac, and other foods in soft synthetic resin bags.
[0003]
Such packaged foods are collected after the expiration date, and most of them are incinerated at the garbage incinerator. However, since food is not ingested from the bag and incinerated as it is, if the material of the bag is a synthetic resin containing chlorine, such as vinyl chloride resin, harmful hydrogen chloride gas or highly toxic dioxin is incinerated during incineration. There was a risk of occurring.
[0004]
Therefore, some companies and research institutes make foods in bags into feed or compost for effective use. However, in that case, it is necessary to remove the food from the bags and separate and remove the bags. become. However, methods and devices for removing bags efficiently and reliably have not been developed yet, and until now, as a practical bag removal method, food in bags has been crushed and dried, followed by wind separation. It is a degree.
[0005]
[Problems to be solved by the invention]
However, the above bag removal method using wind separation must pulverize and dry the food in the bag. Therefore, there is a problem that it cannot be used when other processing is performed without pulverizing and drying the food. there were.
[0006]
In addition, the bag removal method using wind power separation has a problem that it is difficult to reliably separate and remove the bag so that the crushed pieces of the bag do not remain in the pulverized food product.
[0007]
This invention is made | formed in view of said problem, The place made into the objective is to provide the bag removal method and bag removal apparatus which can remove a bag efficiently and reliably.
[0008]
[Means for Solving the Problems]
To achieve the above object, a bag removing method according to the present onset Ming, after dissection at the underside of the bags solids such as food containing at least one place, the lower surface of the bag so as to intersect with the incision An incision is made at another place, the upper surface of the bag is adsorbed and held by an adsorbing tool, and air is sprayed onto the lower surface to drop the solid matter by its own weight from the incised portion of the lower surface.
In the bag removing method of the present invention, the lower surface of the bag containing a solid material such as food is incised at least at one location by the cutter while spraying water or oil on the cutter, and then intersects the incised portion. In addition, it is desirable that the lower surface of the bag is cut in one other place with the other cutter while water or oil is sprayed on the other cutter.
[0009]
According to this bag removing method, the lower surface of the bag containing solid matter such as food is cut twice, and air is blown to the lower surface while adsorbing and holding the upper surface of the bag to remove the solid matter from the cut portion of the lower surface. The bag can be separated and removed efficiently only by passing through the dropping process. In addition, after the lower surface of the bag is incised at at least one location, the bag is incised at another location so as to intersect the incised portion. since it is, open the incision is large, since the injected air to the lower surface of the bag, and easily peeled from the bag in solid tenacious, reliably separated bag to fall does not remain solid, Can be removed.
[0010]
Next, bag removal device according to the present onset Ming, first cutter cutting the bags solids such as food enters the middle of the input conveyor for carrying the bag remover, at least one place a lower surface of the bag A support plate on which the carried bag is placed inside the bag removing machine, a feed guide piece that moves the bag on the support plate and feeds it from the end of the support plate, and in the middle of the support plate Adsorb the upper surface of the bag while moving the upper side of the second cutter to cut the lower surface of the bag so as to intersect the incised portion at one other location and the bag moving on the support plate An adsorbing tool to be held and an air nozzle for injecting air to the lower surface of the adsorbed and held bag are provided.
In the bag removing apparatus of the present invention, a spray nozzle for spraying water or oil on the first cutter is provided in the vicinity of the first cutter, and a spray nozzle for spraying water or oil on the second cutter is provided on the second cutter. It is desirable to provide in the vicinity.
[0011]
According to such a bag removing device, the lower surface of the bag is cut in at least one place by the first cutter while the bag containing the solid matter such as food is placed on the carry-in conveyor and carried into the bag removing machine. The And this bag is mounted on the support plate of the bag removing machine, and the lower surface of the bag crosses the incision part by the second cutter while moving toward the end on the support plate by the feed guide piece. An incision is made at another location, and the upper surface of the bag is adsorbed by the adsorber. Then, when the sucked bag is fed from the end of the support plate by the feed guide piece, air is jetted from the air nozzle to the lower surface of the bag, and the solid matter in the bag is self-weighted to enlarge the incised portion on the lower surface of the bag. is opened press falls Nokorazu it easier to peel from the bag by the air, is collected and is separately solids dropped with adsorbed bag suction device, the bag can be reliably removed. In addition, if a bag cancels | releases adsorption | suction by an adsorption tool, it will fall naturally and will be collected.
[0012]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, specific embodiments of the present invention will be described in detail with reference to the drawings.
[0013]
1 is a front view of a bag removing device according to an embodiment of the present invention, FIG. 2 is a plan view of the bag removing device, and FIG. 3 is a right side view of the bag removing device.
[0014]
This bag removing apparatus is composed of a supply escalator 1, a raw material tank 2, a carry-in conveyor 3, a bag remover 4, a first cutter 5, a second cutter 6, a carry-out conveyor 7, and the like.
[0015]
The carry-in escalator 1 is installed by inclining a belt conveyor 1b having a large number of cleats 1a attached at regular intervals at an angle of about 45 degrees. When a bag containing an object (hereinafter referred to as a bag containing solid matter) is introduced into the lower inlet 1c, the bag containing the solid matter is caught by the cleat 1a and rises to be supplied to the raw material tank 2.
[0016]
This raw material tank 2 is a so-called flat base type tank, and is installed so as to be inclined slightly toward the carry-in conveyor 3 as shown in FIG. Therefore, the bag containing solid matter supplied to the raw material tank 2 slides on the upper surface of the raw material tank 2 and moves toward the carry-in conveyor 3.
[0017]
The carry-in conveyor 3 is provided with a chain conveyor 3b having a large number of attachments 3a attached at regular intervals inside a conveyor box 3c. A bag 10 containing solids is placed between the attachments 3a, and a motor (not used) While intermittently operating in the figure, the solid-containing bags 10 can be carried into the bag removing machine 4 one by one by intermittently moving by a distance corresponding to the mutual interval of the attachment 3a. In addition, it is desirable to perform the operation | work which mounts the bag 10 with a solid substance between the attachment 3a of the chain conveyor 3b from the raw material tank 2 reliably by hand.
[0018]
A first cutter 5 is provided in the middle of the carry-in conveyor 3 (location near the bag removing machine 4). This first cutter 5 is provided with four disk-shaped rotary blades, and as shown in FIG. 6 (A), the lower surface of the bag 10 containing solid matter is unidirectionally at four locations 10a, 10b, 10c, 10d (see FIG. In this case, each rotary blade is slightly protruded so that it can be incised laterally. A pressing piece 8 is provided above the cutter 5 and is pressed by the pressing piece 8 so that the solid-containing bag is not pushed up at the time of incision, so that the lower surface of the solid-containing bag 10 can be reliably incised. .
[0019]
Further, as shown in FIGS. 4A and 4B, a pair of spray nozzles 3d and 3d are provided in the vicinity of the first cutter 5, and water or oil is supplied from the spray nozzles 3d and 3d to the cutter 5. The rotary blades are sprayed almost uniformly. If the contents of the bag 10 containing solid matter are, for example, sticky noodles or the like, there is a possibility that it will stick to the rotary blade of the cutter 5 and hinder the incision of the bag, but as described above, the spray nozzle 3d , 3d has an advantage that the bag 10 can be reliably incised by preventing the solid matter from adhering to the rotating blade by spraying water or oil.
[0020]
The first cutter 5 in this embodiment is provided with four rotary blades as described above and can cut out the lower surface of the bag 10 at four places, but is not limited to such a cutter, and at least What is necessary is just to provide one rotary blade and to cut | disconnect the lower surface of the bag 10 containing a solid substance in at least one place. However, as in this embodiment, when the lower surface of the solid bag 10 is incised by the first cutter 5 at four places, the incised portion is opened widely when the solid material is dropped as will be described later, and the solid material is surely dropped. It is preferable because of its merit.
[0021]
The bag removing machine 4 is provided with an upper turntable 4a that rotates at a constant speed and a small-diameter lower turntable 4b that rotates at the same speed. A plurality of holes are formed in the peripheral edge of the upper turntable 4a. The book (six in the figure) suction tools 4c are inserted so as to be movable up and down.
[0022]
The suction tool 4c has a roller 4d at the upper end and a suction pad 4e at the lower end. The roller 4d at the upper end fits into an annular guide groove 4f with up and down undulations, and the upper turntable 4a rotates. When the suction tool 4c rotates, the upper end roller 4d rolls in the annular guide groove 4f, and the suction tool 4c moves up and down along the undulation of the annular guide groove 4f. When the compressed air is supplied to the air supply pipe 4g provided at the center of the bag removing machine 4, the suction tool 4c can be switched between the suction state and the exhaust state by the switching valve.
[0023]
An arc-shaped (substantially 1/6 arc-shaped) support plate 4h on which the solid-filled bag is placed is provided outside the lower turntable 4b at the entrance of the bag removing machine 4 into which the solid-filled bag is carried. In the middle of the support plate 4h, a second cutter 6 is provided.
[0024]
This second cutter 6 is provided with a single disk-shaped rotary blade, and as shown in FIG. 6B, the lower surface of the bag 10 containing solid matter intersects with the incisions 10a, 10b, 10c, and 10d. Thus, the rotary blade is attached so as to slightly protrude from the support plate 4h so that the incision can be made at the other place 10e. Then, as shown in FIG. 5, a spray nozzle 6a is also provided in the vicinity of the second cutter 6, and water or oil is sprayed from the spray nozzle 6a onto the rotary blade of the cutter 6 so that no solid matter adheres. I am doing so.
[0025]
The lower turntable 4b is provided with the same number (six in the figure) of feed guide pieces 4i as the adsorbing tools 4c so as to protrude outward from the table 4b. When the table 4b rotates, the support plate The bag containing solid matter placed on 4h is pushed by the feed guide piece 4i to move on the support plate 4h, and is sent out from the end of the support plate 4h.
[0026]
As shown in FIG. 5, an air nozzle 4k is provided below the end portion of the support plate 4h, and air is jetted from the air nozzle 4k to the lower surface of the incised solid bag 10. ing. By injecting air in this way, even when the contents of the solid bag 10 are the above-mentioned sticky noodles, etc., the bag and the noodles can be easily peeled off, and there is an advantage that the noodles can be reliably dropped by their own weight as will be described later. is there.
[0027]
Further, a shooter 4j for sending a bag falling from the adsorbing tool 4c to the bag receiver 9a is attached below the adsorbing tool 4c on the side opposite to the inlet portion of the bag removing machine 4.
[0028]
The carry-out conveyor 7 is an ordinary belt conveyor, and is installed so that a solid material receiving port 7a provided at the rear end thereof is positioned below the end of the support plate 4h. A solid material receiver 9b is disposed below the front end of 7. The solid receptacle 9b is placed on the roller 11 and can be easily moved with a small force.
[0029]
The bag removing apparatus configured as described above operates as follows to efficiently and reliably remove the bag.
[0030]
First, a solid bag is put into a loading port 1 c below the supply conveyor 1, raised to the raw material tank 2 and supplied. Then, the solid-filled bags in the raw material tank 2 are preferably placed manually between the attachments 3a of the carry-in conveyor 3, and the solid-filled bags are intermittently carried into the bag removing machine 4 one by one. On the way, the lower surface of the bag 10 containing solid material is cut in parallel at the four locations 10a, 10b, 10c, and 10d by the first cutter 5 as shown in FIG. Since the first cutter 5 is sprayed with water or oil from the spray nozzle 3d, there is no fear that the solid matter adheres to the cutter 5 and prevents the incision during the incision.
[0031]
The bag 10 containing the solid material carried into the bag removing machine 4 is placed on the support plate 4h and is pushed by the feed guide piece 4i as the lower turntable 4b rotates and moves on the support plate 4h toward the end. To do. At this time, the suction tool 4c descends while moving on the upper side of the solid-containing bag by the rotation of the upper turntable 4a, and the upper surface of the bag is adsorbed at the same time the solid-containing bag is pressed by the suction pad 4e at the lower end of the suction tool 4c. The While the solid bag is moving toward the end of the support plate 4h, the second cutter 6 causes the lower surface of the solid bag 10 to be cut into the incisions 10a, 10b, and 10c as shown in FIG. 4B. , 10d is cut at another location 10e so as to intersect at right angles. Also at this time, since water or oil is sprayed from the spray nozzle 6 a to the second cutter 6, there is no concern that the solid matter adheres to the rotary blade of the cutter 6.
[0032]
When the solid-filled bag 10 whose lower surface is cut as described above is sucked from the end of the support plate 4h by the feed guide piece 4i while being sucked by the suction tool 4c, as shown schematically in FIG. The solid material 10f in the inside greatly pushes open the incised portion on the lower surface of the bag under its own weight, and falls to the receiving port 7a of the lower carry-out conveyor 7. At this time, since air is jetted from the air nozzle 4k to the lower surface of the bag 10 containing the solid material, even if the solid material 10f is sticky noodles or the like, it does not stick to the bag 10 and falls down to the receiving port 7a. The unloading conveyor 7 collects the solids 9b. On the other hand, the bag 10 is conveyed to the side opposite to the inlet of the bag removing machine 4 while being adsorbed by the adsorbing tool 4c, where the adsorbing tool is switched to the exhaust state by the switching valve and falls to the lower shooter 4j, and the bag receiver 9a. Collected.
[0033]
Thereafter, the above-described series of operations is repeated, and the bags of the solid-containing bags are efficiently and reliably separated and removed.
[0034]
The bag removing apparatus described above is a preferable apparatus for concretely carrying out the bag removing method of the present invention, but the bag removing method of the present invention is limited only to the specific method implemented by this bag removing apparatus. However, after the lower surface of the solid bag is cut at least at one location, the lower surface of the bag is cut at another location so as to intersect with the incised portion, and the upper surface of the bag is Any device may be used as long as the solid material is dropped by its own weight from the incision portion on the lower surface by suction and holding.
[0035]
【The invention's effect】
As is apparent from the above description, according to the present invention, the bag can be separated and removed efficiently and reliably, and the pulverization and drying steps are not essential as in the conventional bag removal method using wind power separation. In addition, there is a remarkable effect that the crushed pieces of the bag do not remain in the pulverized solid matter.
[Brief description of the drawings]
FIG. 1 is a front view of a bag removing device according to an embodiment of the present invention.
FIG. 2 is a plan view of the bag removing device.
FIG. 3 is a right side view of the bag removing device.
4A is a side view showing a spray nozzle provided in the vicinity of the first cutter, and FIG. 4B is a plan view showing the spray nozzle provided in the vicinity of the first cutter.
FIG. 5 is a side view showing a spray nozzle provided in the vicinity of the second cutter and an air nozzle provided at the end of the support plate.
FIG. 6A is a diagram showing a state in which the lower surface of the solid bag is cut at four positions by the first cutter, and FIG. 6B is a diagram showing another state of the lower surface of the solid bag by the second cutter. It is a figure which shows the state cut | disconnected by.
FIG. 7 is a diagram schematically showing a place where a solid substance falls from an incision portion on a lower surface of a bag adsorbed by an adsorbing tool.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Supply conveyor 2 Raw material tank 3 Carry-in conveyor 4 Bag removal machine 4c Suction tool 4h Support plate 4i Feed guide piece 5 1st cutter 6 2nd cutter 7 Unloading conveyor 10 Bag 10a, 10b, 10c, 10d, 10e Incision part

Claims (4)

After incising the lower surface of the bag containing solids such as food at at least one location, the lower surface of the bag is incised at another location so as to intersect the incised portion, and the upper surface of the bag is adsorbed by an adsorber A bag removing method, wherein air is blown to the lower surface while holding and solids are dropped from an incised portion of the lower surface by its own weight. After the lower surface of the bag containing solids such as food is incised at least at one location by spraying water or oil onto the cutter, the lower surface of the bag is crossed to the incised portion, 2. The bag removing method according to claim 1, wherein incision is made at one other location by the other cutter while spraying water or oil on the cutter. A first cutter that cuts the lower surface of the bag at least at one place is provided in the middle of the carry-in conveyor for carrying a bag containing solids such as food into the bag remover, and is loaded into the bag remover. A support plate on which the bag is placed, a feed guide piece that moves the bag on the support plate and feeds it from the end of the support plate, and the lower surface of the bag intersects the incision part in the middle of the support plate A second cutter that cuts out at one other location, an adsorber that adsorbs and holds the upper surface of the bag while moving the upper side of the bag in accordance with the bag moving on the support plate, and a lower surface of the bag that is adsorbed and held A bag removing apparatus comprising an air nozzle for injecting air . A spray nozzle for spraying water or oil on the first cutter is provided in the vicinity of the first cutter, and a spray nozzle for spraying water or oil on the second cutter is provided in the vicinity of the second cutter. The bag removing apparatus according to claim 3.

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