JP2936054B2 - Bag breaking machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bag breaking machine for breaking a bag for storing solids such as bottles.

[0002]

2. Description of the Related Art Waste discharged from ordinary households is
It is divided into combustibles and non-combustibles, and each is stored in a bag and discharged. At the time of collection and disposal, combustibles can then be dumped in an incinerator and incinerated, but non-combustibles, for example, bottles and cans are mixed, and these resources are collected and reused. May be desired. In this case, a method is usually adopted in which the bag is manually broken to take out a reusable material.

[0003] However, this bag breaking method requires considerable trouble,
It is inefficient and unsanitary. In view of this, the present inventor has previously proposed a bag breaking machine that automatically breaks a bag. One example is shown in FIG.

In FIG. 1, a bag breaking machine B includes a rotating cutting blade 1.
And a pressing member 2 positioned opposite to the cutting blade 1, and a guide plate 3 covering the cutting blade 1 and having a central portion in an arc shape. As shown in FIG. 7, the cutting blade 1 has a plurality of mounting disks 6 mounted at equal intervals on a support shaft 5 and a disk-shaped cutting blade 7 mounted on the mounting disk 6. A plurality of the cutting blades 7 (three in the example in the drawing) are arranged at equal intervals on the mounting disc 6.
In addition, a part is mounted so as to protrude from the mounting disk 6.

As shown in FIG. 8, the holding member 2 divides the entire width of the machine base into three equal parts, and the holding member 2 is provided for each. Each holding member 2 has a common drive shaft 10, a lower driven shaft 11 provided for each holding member, an endless band 12 suspended between sprocket wheels 18 and 19 attached to both shafts, and an endless band 12. Endless belt, supported by
For example, it is composed of a rubber belt (hereinafter referred to as a rubber belt) 13 and a frame body 14 that accommodates these and is provided so as to be swingable about the drive shaft 10. The frame body 14 includes a cover 15 that covers an upper portion (the side opposite to the cutting blade 1).
5 is connected via a connecting plate 17 to an elastic machine 16 for urging the lower driven shaft 11 side to the cutting blade side, and the transition position of the lower end of the pressing member 2 to the cutting blade side is appropriately spaced from the cutting blade 1. Is supported so as to shift to the existing position.

[0006] The endless belt 12 is a chain conveyor with an attachment, is provided with locking claws 20 on the upper part, and a plurality of rows, for example, three, are arranged in parallel. As shown in FIGS. Supported by The cover 15 is formed by bending a plate material into a substantially triangular cross section.
And a notch 22 in the upper part of the support rod 21 for allowing the belt to pass through. However, chain conveyor 1
2 passes under the support rod 21 to reach the sprocket wheel 18 attached to the drive shaft 10 and the rubber belt 13
Is designed to move away from the chain conveyor 12 by the support rod 21. In the figure, reference numeral 25 denotes a discharge conveyor arranged below these.

The guide plate 3 has an arcuate portion at the center, and a notch 8 is formed at a position facing the cutting edge 7, and the cutting edge protrudes at the arcuate portion of the guide plate 3.
The supplied bag W is broken by the rotation of the cutting blade. At other positions, the bag W is immersed in the guide plate and the bag caught on the cutting blade 7 is peeled off.

In the above configuration, the bag body W1 discarded on the guide plate 3 falls and is hooked on the hooking claw 20 provided on the pressing member 3, and moves downward with the movement of the chain conveyor 12. Cutting is performed by the cutting blade 7 of the rotating cutting blade 1. At this time, the transfer speed of the chain conveyor 12 is operated at a speed lower than the rotation speed of the rotary blade 2. Then, the stored items fall downward due to the bag breaking, the bag body shifts while being hooked on the hooking claws 20, and the rubber belt 13 is separated and dropped by being pulled up by the support rod 21 at the rear.

[0009]

However, in this case, FIG.
As shown in (2), when the large article W1 is dropped, the pressing member 2 retreats from the regular position 2a. Therefore, when the small article W2 is thrown in at the same time, it may fall down and be released without breaking the bag. In view of the above, it is an object of the present invention to prevent a small bag from falling even if large and small bags are supplied at the same time, and to reliably perform bag breaking.

[0010]

In order to achieve the above object, a bag breaking machine according to the present invention comprises a rotating cutting blade, a pressing member positioned opposite to the cutting blade, and an arc-shaped central portion for cutting. In a bag-breaking machine that includes a guide plate that covers a blade, supports a supplied bag body with a holding member and a guide plate, breaks the bag with a rotating cutting blade, and discharges the bag downward, the guide plate faces the holding member. Then, a supporting member for locking the bag body is protruded to lock the small bag body, and the bag is broken by a cutting blade.

[0011]

[Operation] The holding member swings around the drive shaft depending on the size of the supplied bag body. Therefore, when the bag is large, the swing is large, but at this time, even if a small bag is supplied, the small bag is locked by the support member projecting from the guide plate, Therefore, the bag can be broken by the rotating cutting blade without falling.

[0012]

1 to 5 show an embodiment of the present invention.
This bag-breaking machine A includes a cutting blade 1 that rotates in the same manner as the bag-breaking machine B, a pressing member 2 that is located opposite to the cutting blade 1, and
A guide plate 3 which covers the cutting blade 1 and has an arcuate center portion.
And The structure is the same as that described above, and the same components are denoted by the same reference numerals and description thereof will be omitted. The present invention includes a support member 30 for locking a small bag to the guide plate 3. As shown in FIGS. 4 and 5, the support member 30 includes a pair of left and right support pieces 31 that are substantially triangular.
It is composed of a spacing piece 32 inserted between the two supporting pieces and a mounting plate 33 for supporting them. This support member 3
The reference numeral 0 denotes a position provided near the notch 8 for each cutting blade 7 of the guide plate 3 as shown in FIG. 3, and at a position relatively opposed to the pressing member 2 as shown in FIG. Provide. Preferably, the height is close to the passage locus 33 of the tip of the cutting blade 7 as shown in FIG. However, if necessary, it may be protruded from the locus 33.

In the above configuration, when a large bag W1 is supplied as shown in FIG.
Retreats from a. At this time, even if the small bag W2 is supplied at the same time, the small bag W2 is locked by the support member 30, is prevented from falling, and is broken by the rotating cutting blade 1. Of course, the support member locks the large bag when it is supplied. Therefore, the holding member 2 and the guide plate 3 are supported by the three members, and the support is more reliable and the bag is broken effectively.

[0014]

As described above, according to the present invention, when the supplied bag body is broken, the presser member swings around the drive shaft by the supplied bag body, so that the distance from the cutting blade is large. Even if a small bag is supplied at the same time, since the small bag is locked by the support member provided on the guide plate, it is possible to prevent the bag from falling down, and therefore, the large and small bags can be prevented. Even if the bags are mixed and supplied, all the bags can be reliably broken.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view of a bag breaking machine of the present invention.

FIG. 2 is an explanatory view of how to attach a support member of the present invention to a guide plate.

FIG. 3 is a left side view in FIG. 2;

FIG. 4 is a side view of the support member.

FIG. 5 is a left side view of FIG.

FIG. 6 is a longitudinal sectional view of a bag breaking machine having a well-known structure.

FIG. 7 is a sectional view taken along line XX in FIG. 6;

FIG. 8 is a left side view in FIG. 6 of the pressing member.

FIG. 9 is a sectional view taken along line YY in FIG. 6;

10 is a sectional view taken along the line ZZ in FIG.

[Explanation of symbols]

 A bag breaking machine 1 cutting blade 2 holding member 3 guide plate 30 support member

Claims (1)

(57) [Claims] 1. A cutting blade which rotates, a pressing member positioned opposite to the cutting blade, and a guide plate having a central portion in an arc shape for covering the cutting blade, wherein a supplied bag body is held by the pressing member and the guide plate. In the bag-breaking machine which is supported by the above, the bag is broken by the rotating cutting blade, and the bag is discharged downward, the guide plate is provided with a support member which is opposed to the pressing member and which locks the bag body, thereby forming a small bag body. Characterized in that the bag is broken by a cutting blade.