JP5579664B2 - Container processing equipment - Google Patents

Description

  The present invention relates to an apparatus for processing a container (for example, a paper container or a resin container: a so-called “pack container”) filled with a liquid. More specifically, the present invention removes the liquid filled or remaining in the container (for example, a paper container or a resin container) to reduce the volume or otherwise. The present invention relates to a container processing apparatus for making it possible to perform various processing.

In recent years, the trend of complying with the expiration date and the expiration date of various beverages has increased, and the need to dispose of beverages filled in containers and sold in large quantities has increased.
As a result, there is an increasing need for rapid and large-scale processing such as volume reduction for the containers filled with various beverages and other liquids.
In addition, in a beverage manufacturing factory, defective products are manufactured at a certain rate during filling. Such defective products are detected by product inspection and discharged out of the filling line as defective products. In a manufacturing factory, it is necessary to process a defective product filled with a liquid so that it can be discarded.
In such a process, the liquid filled in the container must be removed from the container.
In the operation of removing the liquid filled in the container from the container, the container is partially destroyed to form an opening, and the liquid filled in the container is discharged and removed from the opening. Is required.

In such an operation, both the container and the contents (for example, liquid) filled in the container must be processed at the same time, which requires a great deal of labor and cost.
Therefore, in this work, there is a need to reduce the manpower as much as possible and mechanize.
However, in order to destroy the container and form an opening, and discharge and remove the liquid filled in the container from the opening, it is sufficient to meet the demand for mechanization with a reduced number of manual steps. No technology has yet been proposed to meet these requirements.

As another conventional technique, for example, a pair of crushing rollers and a pair of compression rollers are provided, the container is crushed by the crushing roller, and the liquid remaining in the container crushed by the compression roller is removed. A technique for squeezing and compressing the remains of the container has been proposed (see Patent Document 1).
However, in the related art (Patent Document 1), since it has a pair of crushing rollers and a pair of compression rollers, the number of parts increases and maintenance is difficult accordingly. In addition, since the two pairs of rollers are built in, the entire processing apparatus is increased in size.
In addition, the charged container is splashed by the rotating crushing roller or the compression roller, and there is a problem that crushing and compression are not sufficiently performed.

Japanese Patent Laid-Open No. 9-299917

  The present invention has been proposed in view of the above-described problems of the prior art, and an object of the present invention is to provide a container processing apparatus capable of mechanically performing an operation of removing liquid from a container filled with liquid. .

The container processing apparatus of the present invention (a container processing apparatus for processing a container)
Two gears (1A, 1B) arranged opposite to each other are provided, and each of the two gears (1A, 1B) has a cylindrical shape as a whole, and the diameter of each cylindrical shape is different. And
Each of the two gears (1A, 1B) includes a plurality of cylindrical teeth (1a, 1b) continuous in the circumferential direction at intervals in the direction of the rotation axis of the gear,
A plurality of circumferentially continuous teeth (1a) provided on one gear (1A) and a plurality of circumferentially continuous teeth (1b) provided on the other gear (1B) Is located at a position that does not interfere with
A region where the two gears are opposed to each other is located in the movement path of the container to be processed,
The rotation shafts (4a, 4b) of the two gears (1A, 1B) are a plurality of teeth (1a, 1b) that are continuous in the circumferential direction in the region where the gears (1A, 1B) face each other. ) Tooth tip circles (1AC, 1BC) are separated by an overlapping distance, and the two gears (1A, 1B) are rotating in opposite directions (RA, RB) and the rotation speed is A container filled with a liquid , characterized in that the difference in rotational speed between the two gears is 20 to 100 rpm and the rotational speed of the large-diameter gear 1A is 20 to 50 rpm is processed. It is a device for.
In the practice of the present invention, the rotation speed of the large diameter gear is preferably slower than the rotation speed of the small diameter gear.
Moreover, it is preferable that the rotational speed of a small diameter gear is 20-120 rpm.
Furthermore, it is preferable that the overlap amount of the cutting edge circles of the two gears is 5 to 20 mm.
The container processing apparatus includes a container pressing cylinder, a pressing plate connected to the container pressing cylinder, and an opening / closing door. The container processed by two gears (1A, 1B) is a pressing plate and the opening / closing door. It is preferable to have a mechanism for discharging the liquid remaining in the container by being sandwiched and pressed between the containers.
Furthermore, it is preferable that the gear teeth have a triangular shape.

In the present invention, the container to be treated is not particularly limited, such as a paper container (80) or a container made entirely of resin, but is preferably a paper container (80).
Here, the paper container (80) includes a container having a portion made of resin in addition to a portion made of paper.
In the present invention, the difference in rotational speed between the two gears (1A, 1B) is preferably 20 rpm or more, more preferably 40 rpm or more.

  In the present invention, a plurality of teeth (1a, 1b) that are continuous in the circumferential direction of each of the two gears (1A, 1B) are opposed to the two gears (1A, 1B). In the region, the overlapping dimension of the tip circles (1AC, 1BC) is preferably 5 mm to 20 mm (overlap amount is 5 mm to 20 mm), more preferably 8 mm to 15 mm.

In the present invention, the rotation speed of the gears (1A, 1B) is preferably 20 rpm to 120 rpm.
In the present invention, the plurality of teeth (1a, 1b) continuous in the circumferential direction in each of the two gears (1A, 1B) may have the same shape, or each gear (1A) The shape of the teeth (1a, 1b) in 1B) may be different.

According to the container processing apparatus of the present invention having the above-described configuration, the region where the two gears (1A, 1B) face each other is located in the movement path of the container (80) to be processed, and In the region where the gears face each other, the tip circles (1AC, 1BC) of the plurality of teeth (1a, 1b) that are continuous in the circumferential direction overlap. Therefore, the container (80) to be treated is torn and torn by a plurality of circumferentially continuous teeth (1a, 1b) in the region where the two gears (1A, 1B) are opposed to each other. And perforated.
As a result, even if the liquid remains in the container (80), when the container (80) is torn, torn and perforated, the container (80) is dropped and discharged from the two gears. It moves to the area (200) below the location where (1A, 1B) is placed.
Thereby, in the state from which the liquid was removed completely from the inside of the container (80), the said container (80) can be compressed and reduced in weight.

Here, in the present invention, the container (80) is torn, torn, and perforated by the teeth (1a, 1b) of the gears (1A, 1B). In comparison, the cross-sectional area of the opening formed by tearing and tearing the container (80) is much larger.
Therefore, the liquid remaining in the container (80) is reliably removed from the container (80). Therefore, there is no fear that the liquid remains in the mass obtained by compressing the container (80) and is rotted.

In addition, according to the present invention, the two gears (1A, 1B) tear, tear, and perforate the container (80), and the two gears (1A, 1B) pass through the opposing areas. Since the container (80) is compressed, even if liquid remains in the container (80), the container (80) is squeezed out (from the opening formed by tearing and tearing) when the container (80) is compressed. . Therefore, the liquid is surely removed from the container (80).
In other words, the two gears (1A, 1B) function as means for tearing, tearing and punching the container (80), and also function as means for compressing the container (80). ) And the means for compressing the container (80) need not be provided separately.
Therefore, it is possible to reduce parts, facilitate maintenance, and downsize the entire processing apparatus.

Here, according to the present invention described above, the two gears have different dimensions (cylindrical diameter dimensions) and are continuous in the circumferential direction in each of the two gears (1A, 1B). The tip circles (1AC, 1BC) of a plurality of teeth (1a, 1b) overlap, and the rotational speeds of the two gears (1A, 1B) are different in a range of 20 rpm or more, preferably 40 rpm or more. ing.
Since the dimensions of the gears are different, the locations where the container (80) is torn, torn, and perforated according to the present invention are standard as compared to the gears of the same size being opposed to each other. (Patterning) is prevented, and a situation in which the liquid remaining in a specific portion of the container (80) is not removed from the container is prevented.
According to the present invention, the tip circles (1AC, 1BC) of the plurality of teeth (1a, 1b) continuous in the circumferential direction in each of the two large and small gears (1A, 1B) facing each other are over. Since it is wrapped, the tooth tip reaches the container (80) passing through the intermediate point between the two gears (1A, 1B), and can be torn, torn, and perforated reliably. And it can prevent reliably that the container (80) by which volume reduction processing is performed in the state in which the liquid remained remains.

Here, if the rotational speed of the gears (1A, 1B) becomes too fast, the paper container (80) charged in the processing apparatus (100) of the present invention will be spun off when it comes into contact with the gear having a high rotational speed. As a result, the gears (1A, 1B) cannot enter the region where the gears face each other. As a result, the gears (1A, 1B) are not cut, torn, or perforated by the teeth (1a, 1b).
On the other hand, if the rotational speed of the gears (1A, 1B) becomes too slow, the paper container (80) charged into the processing apparatus (100) of the present invention is in the region where the gears (1A, 1B) face each other. If the paper container (80) follows the movement of the teeth (1a, 1b) of the gears (1A, 1B) even if it enters, the container (1a, 1b) of the gears (1A, 1B) (80) can not be torn and torn.

In the present invention, the rotational speeds of the two gears (1A, 1B) are different, so that the force to tear the container is large, the cross-sectional area of the opening is large, and the content liquid filled in the container Can be efficiently discharged.
Here, the difference in rotational speed of the gears (1A, 1B) is not particularly limited, but is preferably 20 rpm or more, and more preferably 40 rpm or more.
If the difference in the rotational speeds of the gears (1A, 1B) is less than 20 rpm, the force for tearing the container may be insufficient, and the content liquid filled in the container may not be efficiently discharged.
Similarly, when the difference in rotational speed of the gears (1A, 1B) is smaller than 20 rpm, the container (80) charged into the processing apparatus (100) of the present invention is moved to the teeth (1a, 1B) of the gears (1A, 1B). Following the movement of 1b), the container (80) cannot be torn by the teeth (1a, 1b) of the gears (1A, 1B), and a situation in which it cannot be torn may occur.
However, even if the difference in rotation speed of the gears (1A, 1B) is 20 rpm or more, if the difference in rotation speed of the gears (1A, 1B) exceeds 100 rpm, the difference in rotation speed is too large. The container (80) charged into the processing device (100) is brought into contact with the gears (1A, 1B) and splashed off, and can enter the region where the gears (1A, 1B) face each other. It may cause a situation that disappears. In order to prevent such a situation, the difference in rotational speed of the gears (1A, 1B) is more preferably 100 rpm or less.

It is a front view which shows embodiment of this invention. It is a side view which shows embodiment of FIG. It is a top view which shows embodiment of FIG. It is a front view of a pair of gears used in the embodiment. It is a top view which shows the gearwheel of FIG. It is an enlarged view which expands and shows the area | region D of FIG.

Embodiments of the present invention will be described below with reference to the accompanying drawings.
1 to 3, a container processing apparatus denoted as a whole by reference numeral 100 includes a pair of gears 1A, 1B, a gear support member 7, a container charging duct 8, a carriage frame 20 (in this specification, "trolley 20"). The container pressing cylinder 30 and the operation panel 40 are included.
A symbol OP in FIG. 1 indicates an operator.

The container processing apparatus 100 further includes an electric motor 5A that drives the gear 1A, a gear box 6A that transmits rotational force from the drive motor 5A to the gear 1A, and an electric motor that drives the gear 1B. 5B, and a gear box 6B that transmits rotational force from the drive motor 5B to the gear 1B.
The detailed configuration of the pair of gears 1A and 1B will be described in detail with reference to FIGS.

In FIG. 1, the gear 1A is driven by reducing the rotation of the drive motor 1A by the gear box 6A. The gear 1B is driven by reducing the rotation of the drive motor 1B by the gear box 6B.
The gear box 6A and the gear box 6B are attached to the outside (the right side in FIG. 2) of the vertical flat plate member 71r on the right side of the gear support member 7 in FIG.

In FIG. 1, the gear support member 7 is a rectangular parallelepiped casing, and includes four vertical flat plate members 71, an upper surface member 72, and a lower surface member 73.
The container charging duct 8 has a container charging port 8 a and is fixed so that the lower end of the duct communicates with an opening (not shown) formed at the center of the upper surface member 72 of the gear support member 7.
An apron 9 is fixed to the lower edge of the container inlet 8a in the container inlet duct 8 so as to extend rightward in FIG.

The apron 9 is provided for placing a bucket (not shown) containing a container before being charged.
Although not clearly shown in FIG. 1, for example, a rectangular opening is formed in the center of the lower surface member 73 of the gear support member 7. The opening is formed to drop a container, which has been processed by the pair of gears 1A, 1B, into a compression processing space 200 described later.
The container 80 to be processed in the illustrated embodiment includes a container having a part made of resin in addition to a part made of paper, and includes a so-called “pack container” and the like.

Four struts 21 are erected at four positions above the carriage 20, and the upper ends of the four struts 21 are in contact with the four corners of the lower end of the gear support member 7.
In FIG. 2, a vertical plate member 22 is stretched so as to surround the periphery of four columns 21. An opening / closing door 25 is provided on one surface (the left side surface in FIG. 2) of the vertical plate-like members 22.
A bottom member 26 having a discharge hole 27 is provided on the projection surface surrounded by the four columns 21 in the lower area on the cart 20 side. The discharge hole 27 is formed with a taper that gradually decreases as the cross-sectional area decreases downward, and extends downward.

In the vicinity of the upper end on the side of the carriage 20, for example, a stainless steel mesh steel plate or a stainless punching metal 23 is stretched over the entire projection surface surrounded by the four columns 21. .
The mesh size of the mesh steel plate 23 or the hole diameter of the punching metal 23 is set such that the container 80 does not pass even when the container 80 is crushed by the pressing cylinder 30.

In FIG. 2, an air cylinder (container pressing cylinder) 30 provided with a guide (not shown) is provided on the outer side (right side in FIG. 2) of the vertical plate-like member 22 around the four columns 21.
The piston rod tip (not shown) of the container pressing cylinder 30 is connected to the pressing plate 32 (see FIG. 1). The pressing plate 32 is disposed inside the vertical plate-like member 22 stretched around the four columns 21 (on the side where the containers treated with the gears 1A and 1B are accommodated).
When the piston rod 47 of the container pressing cylinder 30 extends, the pressing plate 32 moves to the left in FIG. Then, the container 80 treated with the pair of gears 1A, 1B is sandwiched between the pressing plate 32 and the open / close door 25, the container 80 treated with the gears 1A, 1B is pressed, and remains in the container 80. The liquid is discharged from the container 80. The liquid discharged from the container 80 is discharged to the bottom member 26 through countless small holes of the punching metal 23.
The container pressing cylinder 30 is covered with a protective cover 34.

Casters 20 </ b> C are attached in the vicinity of the lower four corners of the cart 20.
As shown in FIG. 2, in the state where the carriage 20 is moored at a fixed position of the processing operation (the casters 20 </ b> C are fixed), the discharge hole 27 in the bottom member 26 is located at a position just above the waste liquid discharge hole 62 in the floor F. Is provided. The waste liquid discharge hole 62 is connected to one end of the waste liquid flow path 64, and the other end of the waste liquid flow path 64 communicates with the content processing facility 70.
Reference numeral 50 in FIGS. 2 and 3 indicates a carry-out basket for collecting the empty containers 80 pushed out by the container pushing cylinder 30 of the processing apparatus 100 and carrying them out to a predetermined position.

Next, the pair of gears 1A and 1B will be described.
FIG. 4 shows a state in which the pair of gears 1A, 1B arranged in the container processing apparatus 100 is seen from the front, and FIG. 5 shows a state seen from above. FIG. 6 shows the gear teeth.
4 and 5, a large-diameter gear 1A is a cylindrical member to which a plurality of disk-shaped teeth (gears) 1a are fixed. In the disk-shaped tooth (gear) 1a, a plurality of protrusions 11a (triangular teeth: see FIG. 6) having the same shape (pattern) are formed on the circumference. A plurality of such disk-shaped teeth (gears) 1a are fixed to the large-diameter gear 1A at the same pitch p in the axial direction of the cylindrical member 2a.
On the other hand, the small-diameter gear 1B is a cylindrical member to which a plurality of disk-shaped teeth (gears) 1b are fixed. The disc-shaped tooth (gear) 1b has a plurality of protrusions 11b having the same shape (pattern) formed on the circumference. A plurality of such disk-shaped teeth (gears) 1b are fixed to the small-diameter gear 1B at the same pitch p as the gear 1A in the axial direction of the cylindrical member 2b.

  The shapes of the protrusions 11a and 11b of the gears 1A and 1B may be the same or different.

As shown in FIGS. 4 to 6, the diameter of the gear 1 </ b> A is larger than the diameter of the gear 1 </ b> B.
This is because, in the experiment by the applicant, by changing the diameters of the gears 1A and 1B, the container to be processed is easily bitten by both teeth.
Here, the ratio of the diameters of the pair of gears 1A and 1B is preferably in the range of 1: 0.6 to 1: 0.8, and more preferably in the range of 1: 0.7 to 1: 0.8.
Here, if the diameter of the small-diameter gear 1B is larger than 0.8 times that of the large-diameter gear 1A, the ease of biting the container is the same as when the gear diameter is the same. When the gears 1A and 1B have the same diameter, as will be described later, when there is a difference between the rotational speed of the gear 1A and the rotational speed of the gear 1B, the container 80 is splashed by the gears 1A and 1B. Therefore, there arises a problem that the processing is not performed.
On the other hand, if the diameter of the small-diameter gear 1B is less than 0.6 times that of the large-diameter gear 1A, the difference in diameter between the gears 1A and 1B is so large that the container is difficult to enter between the gears 1A and 1B. End up.

A square steel material 3a having a square cross section is inscribed on the inner periphery of the cylindrical member 2a, and a cylindrical rotating shaft 4a is provided on the square steel material 3a. On the other hand, a square steel material 3b having a square cross section is inscribed on the inner periphery of the cylindrical member 2b, and a cylindrical rotating shaft 4b is provided on the square steel material 3b.
The rotation shaft 4a of the gear 1A is engaged with a rotation shaft (not shown) of the gear box 6A (see FIG. 1). The rotation shaft 4b of the gear 1B is engaged with a rotation shaft (not shown) of the gear box 6B (see FIG. 1).

In FIG. 6 showing the D portion of FIG. 4 in an enlarged manner, in the disk-like tooth 1a, the roots of adjacent triangular teeth 11a (protrusions) are connected by an arc R.
Note that the shapes of the teeth 11a and 11b of the gears 1A and 1B are not limited to triangles.

In FIG. 4, the gears 1 </ b> A and 1 </ b> B are arranged such that straight lines Lc passing through the center points of both the gears 1 </ b> A and 1 </ b> B extend in the horizontal direction of the container processing apparatus 100 (see FIG. 1).
The gears 1A and 1B are arranged so that the respective cutting edge circles 1AC and 1BC overlap.
The overlap amount δ is not particularly limited, but is preferably 5 mm to 20 mm, more preferably 8 mm to 15 mm.

In FIG. 5, the tooth 1a of the gear 1A is disposed between adjacent teeth 1b of the gear 1B, and the tooth 1b of the gear 1B is disposed between adjacent teeth 1a of the gear 1A. Thereby, both blade edge circles 1AC and 1BC can overlap.
The pair of gears 1A and 1B rotate in directions opposite to each other, for example, the gear 1A rotates clockwise (in the direction of arrow RA), and the gear 1B rotates counterclockwise (in the direction of arrow RB).
This is because if the gears 1A and 1B are rotating in the same direction, the container 80 cannot enter the region where the gears 1A and 1B are opposed to each other.

The rotation speeds of the pair of gears 1A and 1B are different, and the rotation speed difference is adjusted to be 20 rpm or more.
As a result of the difference in rotational speed between the gears 1A and 1B being 20 rpm or more, preferably 40 rpm or more, the force to tear the container is increased, the opening cross-sectional area is increased, and the content liquid filled in the container is efficiently discharged. I can do it.
On the other hand, if the difference between the rotational speeds of the gears 1A and 1B is smaller than 20 rpm, the force for tearing the container may be insufficient, and the content liquid filled in the container may not be efficiently discharged.
Similarly, when the difference between the rotational speeds of the gears 1A and 1B is smaller than 20 rpm, the container 80 put in the processing apparatus 100 follows the movement of the teeth 1a and 1b of the gears 1A and 1B. There is a case where the container 80 cannot be torn by the 1B teeth 1a and 1b and cannot be torn.
However, even if the difference in rotation speed is 20 rpm or more, if the difference in rotation speed between the gears 1A and 1B exceeds 100 rpm, the difference in rotation speed is too large, and the container 80 put into the processing apparatus 100 is filled. May come into contact with the gears 1A and 1B and be splashed off, so that the gears 1A and 1B cannot enter the region where the gears 1A and 1B face each other. In order to prevent such a situation, the difference in rotational speed between the gears 1A and 1B is preferably 100 rpm or less.
The container 80 introduced into the processing apparatus 100 does not follow the movement of the teeth 1a and 1b of the gears 1A and 1B, and the container 80 is torn and torn by the teeth 1a and 1b.
Further, from the viewpoint of easy biting of the container, the rotation speed of the large-diameter gear 1A is preferably slower than the rotation speed of the small-diameter gear 1B. Here, the rotational speed of the gear 1A is not particularly limited, but is preferably 20 rpm to 120 rpm, and more preferably 20 rpm to 50 rpm. On the other hand, the rotation speed of the gear 1B is not particularly limited, but is preferably 20 rpm to 120 rpm, and more preferably 40 rpm to 90 rpm.

The inventor performed the following Experimental Examples 1 to 3.
Prior to performing Experimental Example 1 to Experimental Example 3, a preliminary experiment for determining the charging conditions of the container 80 was performed.
As a result of the preliminary experiment, the input amount (processed number) of the containers 80 was determined to be 25. Then, 6 to 8 containers 80 are charged in the vertical direction into the charging port 8a, and the entire processing is performed in 30 seconds.

[Experimental Example 1]
In Experimental Example 1, the gear interval (overlap amount δ) between the pair of gears 1A and 1B
δ = −10 mm (overlap amount 10 mm),
δ = 0 mm,
δ = 10 mm (the state where the distance between the cutting edge circles is 10 mm and the gears 1A and 1B do not overlap)
The three states were compared.
As described above, the number of processing containers is 25, the rotation speed is 30 rpm for the large-diameter gear 1A, 70 rpm for the small-diameter gear 1B, and the processing time is 30 seconds.

In Experimental Example 1, the following evaluation items (1) to (6) were evaluated. Here, all of the evaluation items (1) to (6) are shown in percentage.
(1) Untreated (ratio of containers that were neither torn nor formed holes)
(2) Longitudinal tear rate (ratio of containers torn longitudinally)
(3) Lateral tear rate (ratio of containers torn laterally)
(4) Destruction rate ((2) + (3))
(5) Other (ratio of containers in which holes have been formed but the liquid in the containers has not been drained)
(6) Content disposal rate (weight ratio of the liquid discharged from the container to the liquid filled in the container)

The determination (comprehensive evaluation) in the experimental example is indicated by symbols “」 ”,“ ◯ ”,“ □ ”,“ Δ ”,“ × ”.
Here, the symbol “◎” indicates “optimal”, which indicates that the opening is formed in good condition and the amount of discarded contents is 85% or more.
The symbol “◯” indicates “adaptation”, and an opening is formed in the container, indicating that the amount of discarded contents is 85% or more.
The symbol “□” indicates “difficult”, there is “variation” in the formation of the opening, and the discarded amount of the content is 84.9% or less.
The symbol “Δ” indicates “inappropriate”, there is “variation” in the formation of the opening, and the amount of discarded contents is 80% or less.
The symbol “×” indicates “unusable”, indicating that the experiment cannot be continued due to the operation status of the apparatus.
Table 1 shows the experimental results.

Table 1

As shown in Table 1, when the distance between the cutting edges is widened (when not overlapping), the content disposal rate is reduced.
And if it overlaps, it will be in a state of crushing and crushing the container, but if it does not overlap, it will be found that there is a tendency that the liquid in the container will not be discharged only by forming a hole .
At δ = −10 mm (overlapping state), the destruction rate was 100%, and the content disposal rate exceeded 85% (86.91%).

[Experiment 2]
Experimental example 2 was compared by changing the rotational speed of the gear at δ = −10 mm (overlap amount 10 mm), which was the best result in experimental example 1.
Evaluation items are the same as in Experimental Example 1.
As experimental conditions in Experimental Example 2, the gear speed is 70 rpm for “high speed”, 50 rpm for “medium speed”, and 30 rpm for “low speed”.
Table 2 shows the experimental results.

Table 2

The results were best when the large-diameter gear A was set to low speed and the small-diameter gear B was set to high speed, and the destruction rate was 100% and the discard rate was 85% or more (85.94%).
In Table 2, when the large-diameter gear A is rotated at a high speed (70 rpm), when the container is broken with a pair of gears, the electric motors 5A and 5B are overloaded and each motor stops. Therefore, the experiment was stopped.

[Experiment 3]
In the experimental example 3, in order to compare with the experimental example 2, the overlap amount δ = 0 mm, and the gear diameter and the rotation speed of the gear were changed.
The contents of the experiment are the same as in Experiment Example 2.
Table 3 shows the experimental results.

Table 3

As shown in Table 3, in Experimental Example 3, as in Experimental Example 2, when the large-diameter gear A is set to a low speed and the small-diameter gear B is set to a high speed, the destruction rate (91.2%), the discard rate ( 85.14%), the best results were obtained.
When both the gears A and B are rotated at a high speed, the discard rate is better than when both the gears A and B are rotated at a low speed. Furthermore, when the speed difference between the gears was reduced, the content disposal rate tended to decrease.
In addition, when the small-diameter gear B is rotated at medium speed, the destruction rate is reduced and the contents are discarded as in the case where the rotation of the gears A and B is made constant or when the rotational speed difference is reduced. The experiment was stopped because the rate was found to be low.

As a result of Experimental Example 1 to Experimental Example 3, when the pair of gears 1A and 1B are overlapped, the processing capability is clearly improved as compared with the case where they are not overlapped.
And it has confirmed that the processing capability (a destruction rate, the disposal rate of the content) of a container improved, so that the space | interval of the gears 1A and 1B is narrow (the amount of overlaps is large).
It has been found that when the difference in rotational speed between the pair of gears 1A and 1B is small, the state of destruction of the container is poor and the content disposal rate is also reduced.
Further, it was confirmed that the content disposal rate improved as the difference in rotational speed between the pair of gears 1A, 1B increased. If the difference between the rotational speeds of the gears 1A and 1B is increased, the force for tearing the container is increased, and it is considered that the opening cross-sectional area is increased by tearing the container.

In the illustrated embodiment, a region in which the pair of gears 1A and 1B are opposed to each other is located in the moving path of the container 80 to be processed, and a plurality of teeth 1a, The 1b tooth tip circles 1AC and 1BC overlap.
Therefore, the container 80 to be processed is torn, torn and perforated by the teeth 1a and 1b.
As a result, even if the liquid remains in the container 80, the container 80 is torn, torn, and leaked from the container 80 when it is perforated. The torn container 80 is compressed in the compression space 200 and pushed out. That is, in a state where the liquid is completely removed from the container 80, the container 80 is compressed to reduce the amount.

In the illustrated embodiment, since the container 80 is torn, torn, and perforated by the gear teeth 1a and 1b, the container 80 has a larger number of holes compared to the case of perforating a large number of holes in a paper container. The cross-sectional area of the formed opening is much larger.
Therefore, the liquid remaining in the container 80 is surely removed from the container 80, and the liquid does not remain in the lump obtained by compressing the container 80, so that there is no possibility of corruption.

Furthermore, according to the illustrated embodiment, the container 80 is compressed when the gears 1A and 1B pass through the opposing regions, and even if liquid remains in the container 80, the container 80 is compressed. At that time, liquid is squeezed out from the opening. Therefore, the liquid is reliably removed from the container 80.
In other words, the pair of gears 1 </ b> A and 1 </ b> B functions as means for tearing, tearing, and punching the container 80 and also functions as means for compressing the container 80.
Therefore, it is not necessary to separately provide a means for tearing, tearing and piercing the container 80 and a means for compressing the container 80.
Therefore, parts can be reduced, maintenance can be facilitated, and the entire processing apparatus can be made compact.

Here, according to the illustrated embodiment, the pair of gears 1A and 1B have different dimensions (cylindrical diameter dimensions), and the tooth tip circles 1AC and 1BC of both teeth 1a and 1b overlap. The rotational speeds of the gears 1A and 1B are different in a range of 20 rpm or more, preferably 40 rpm or more.
Since the gears of the two gears are different, compared to the case where gears of the same size are arranged to face each other, the location where the container 80 is torn, the location to be torn, and the location to be drilled is standardized (pattern ). Therefore, a situation in which the liquid remaining in a specific portion of the container 80 is not removed from the container is prevented.
Further, since the tooth tip circles 1AC and 1BC of the plurality of teeth 1a and 1b in each of the pair of large and small gears 1A and 1B overlap, the tooth tip is also added to the container 80 that moves between the intermediate points of the gears 1A and 1B. Can reach and reliably tear, tear and perforate. Further, it is possible to reliably prevent the container 80 from remaining where the volume reduction process is performed with the liquid remaining.

In carrying out the illustrated embodiment, by setting the difference in rotational speed between the gears 1A and 1B to be 20 rpm or more, more preferably 40 rpm or more, the force for tearing the container is increased, and the sectional area of the opening is increased. It becomes large and the content liquid with which the container is filled can be efficiently discharged.
If the difference in rotational speed between the gears 1A and 1B is less than 20 rpm, the force to tear the container may be insufficient, and the content liquid filled in the container may not be efficiently discharged.
Similarly, if the difference in rotational speed between the gears 1A and 1B is smaller than 20 rpm, the container 80 put into the processing apparatus 100 follows the movement of the teeth 1a and 1b of the gears 1A and 1B, and the gears 1A and 1B. There is a case where the container 80 cannot be torn by the teeth 1a and 1b and cannot be torn.
However, even if the difference between the rotation speeds of the gears 1A and 1B is 20 rpm or more, if the difference between the rotation speeds of the gears 1A and 1B exceeds 100 rpm, the difference between the rotation speeds is too large and is input into the processing apparatus 100. There is a case where the container 80 comes into contact with the gears 1A and 1B and is bounced off and cannot enter the region where the gears 1A and 1B are opposed to each other. From the viewpoint of preventing such a situation, the difference in rotational speed between the gears 1A and 1B is more preferably 100 rpm or less.

The illustrated embodiment is merely an example, and is not intended to limit the technical scope of the present invention.
For example, in the gears 1A and 1B, the shape (profile) of the adjacent protrusions 11a and 11b is not limited to a triangular tooth, and may be a trapezoid, for example.

1A, 1B: Gears 1a, 1b ... Teeth 11a, 11b ... Projections (corresponding to individual teeth of a general gear)
4a, 4b ... rotating shafts 5A, 5B ... electric motors 6A, 6B ... gear box 7 ... gear support member 8 ... container loading duct 20 ... cart / cart frame 30 ... -Container pressing cylinder 40 ... Control panel 50 ... Processed container unloading container

Claims (8)

Two gears (1A, 1B) arranged opposite to each other are provided, and each of the two gears (1A, 1B) has a cylindrical shape as a whole, and the diameter of each cylindrical shape is different. And
Each of the two gears is provided with a plurality of teeth that are continuous in the circumferential direction of the cylindrical shape and spaced apart in the direction of the rotation axis of the gears,
The plurality of circumferentially continuous teeth provided on one gear are arranged at positions that do not interfere with the circumferentially continuous teeth provided on the other gear,
A region where the two gears are opposed to each other is located in the movement path of the container to be processed,
The rotation axes of the two gears are separated from each other by a distance where the tip circles of a plurality of teeth continuous in the circumferential direction overlap each other in a region where the gears are opposed to each other. The gears rotate in opposite directions and have different rotational speeds, the difference in rotational speed between the two gears is 20 to 100 rpm, and the rotational speed of the large-diameter gear is 20 to 50 rpm. container processing apparatus for processing containers filled with a liquid, characterized in that. The container processing apparatus according to claim 1, wherein the rotation speed of the large-diameter gear is slower than the rotation speed of the small-diameter gear. The container processing apparatus according to claim 1 or 2, wherein the rotation speed of the small-diameter gear is 20 to 120 rpm. The container processing apparatus according to claim 1, wherein the overlap amount of the cutting edge circles of the two gears is 5 to 20 mm. A container pressing cylinder, a pressing plate connected to the container pressing cylinder, and an opening / closing door are provided, and a container treated with two gears (1A, 1B) is sandwiched between the pressing plate and the opening / closing door and pressed. The container processing apparatus according to claim 1, further comprising a mechanism for discharging the liquid remaining in the container from the container. The container processing apparatus according to claim 1, wherein the tooth shape of the gear is a triangle. The container processing apparatus according to claim 1, wherein the container to be processed is a paper container. 8. The container processing apparatus according to claim 7, wherein the paper container includes a container having a part made of resin in addition to a part made of paper.

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