JPH0710139A - Cutter for packing bag - Google Patents

Abstract

PURPOSE:To increase productivity, by forming a score reaching from the bottom of a packed bag up to the upper end in a single process. CONSTITUTION:A cultivation bag 1 containing artificial lump for mushroom 3 on a conveyor 6 is fastened by a fixing mechanism 11 and cutter blades 16B of a cutter 16 for respective sides faces are pressed on the bottom side of the caltivation bag 1 and cutter blades 17C of a cutter 17 for respective upper parts is pushed to cut the upper side of the cultivation bag 1 on the same line with the cutter blades 16B. In this state, respective cutters 16, 17 are raised by a lifting cylinder 18. Accordingly, a score reaching from the bottom side to the upper part of an artificial lump of mushroom caltivation 3 is formed by respective side face cutters 16 in the cultivation bag 1 and the score is formed by respective upper part cutters 17 so as to sequentially reach the upper end thereof.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a packaging bag cutting device which is suitable for making a cut in a packaging bag containing a lump of artificial wood or the like so as to remove the lump. .

[0002]

2. Description of the Related Art Generally, an artificially-grown wood used for artificially cultivating mushrooms such as shiitake mushrooms is obtained by filling a culture bag as a packaging bag with sawdust made of wood such as vertebrae and chestnuts, and applying a weak pressure. After inoculating in the state, the upper opening of this culture bag is closed, and the bacteria are cultured under predetermined temperature and humidity conditions, so that the hyphae spread to the sawdust in the culture bag and form a block. It is formed as a thing.

When shipping the artificially-grown wood, it is necessary to remove the culture bag from the artificially-grown wood.
Since the artificially harvested tree after hyphae infestation is in close contact with the culture bag, it cannot be peeled off without making a cut in the culture bag. Therefore, for example, a lump packaging bag removing device as disclosed in Japanese Patent Laid-Open No. 4-352626 is used, and the packaging bag removing device accommodates an artificial tree and has an opening. And a conveying means for conveying the culture bag whose upper end side is closed in an upright state, and a notch provided in the middle of the conveying means and extending upward from the bottom side of the culture bag on both sides in the front-rear direction of the culture bag. The side cutting means to be inserted, and the upper side of the culture bag at a position which is located on the downstream side of the side cutting means and which is provided in the middle of the conveying means and intersects with the upper end side of each cut formed in the culture bag. By cutting
An upper cutting means for forming a cutting opening on the upper side of the artificial wood in the culture bag, and a midway of the conveying means located on the downstream side of the upper cutting means and provided at the cutting opening of the culture bag. It is composed of a packaging bag peeling means for peeling the culture bag from the artificial bark along each of the cuts by moving the pair of right and left engaging parts to be engaged outward in the left-right direction.

Here, the side surface cutting means fixes the culture bag containing the artificially-grown wood conveyed by the conveyer as a conveying means from the left and right sides with a sandwiching plate, and the culture bag by a bag-filling cylinder, a gripping device and the like. While pulling the opening side in the front-back direction, it is pulled upward to give the culture bag a vertical tension. Then, in this state, the cutter of each cutter device is brought into contact with the side surface of the culture bag from the bottom side, and each cutter device is lifted to make a cut near the gripping device.

Next, the culture bag in which each cut is formed is conveyed to the upper cutting means on the downstream side by a conveyor. Then, the upper cutting means fixes the culture bag conveyed by the conveyor from the left and right with a sandwiching plate, and upwardly grips the opening side of the culture bag from the left and right with a bag-filling cylinder, a gripping device, and the like. The culture bag is pulled up to give a vertical tension to the culture bag. Next, in this state, the cutter blade of each movable cutter is brought into contact with the upper side of the culture bag from the downstream side, and each movable cutter is moved toward the upstream side, thereby cutting off the opening side of the culture bag A cut opening is formed such that the cut reaches the upper end.

[0006]

By the way, according to the above-mentioned prior art, when making the cuts in the culture bag by the side cutting means, the opening of the culture bag is opened by the gripping device so as to surely form each cut. Since the side is gripped and pulled up by a bag-tightening cylinder to give the culture bag a vertical tension, it is possible to form a cut by each cutter device only from the bottom side to the vicinity of the gripping device.

As a result, an upper cutting means is separately provided on the downstream side of the side cutting means to cut the upper side of the culture bag so that each cut reaches the upper end, and the culture is carried out by the packaging bag peeling means in the next step. I have to be able to peel off the bag,
There is a problem that the process of cutting the culture bag involves two steps, the productivity is significantly reduced, and the apparatus itself is complicated and the manufacturing cost is increased.

Further, since the upper side of the culture bag is cut by the upper cutting means, the culture bag discharge device must be provided at two places, which complicates the culture bag processing device. There is a problem.

The present invention has been made in view of the problems of the prior art described above, and it is possible to improve productivity by forming a notch extending from the bottom side to the upper end of a packaging bag in a single step. An object is to provide a cutting device for a packaging bag.

[0010]

In order to solve the above-mentioned problems, a packaging bag cutting apparatus adopted by the present invention is a packaging bag in which a lump is housed, and the packaging bag is intermittently erected in an upright state. A transport means for transporting, and a fixing device provided in the middle of the transport means, and when the packaging bag is transported to a predetermined position, clamps the packaging bag together with the lump from both sides in the left-right direction of the transport means. Means and above the fixing means,
A lower cutter for pressing a cutter blade from both left and right sides to a portion of the packaging bag located on the outer peripheral side of the packaging bag. And an upper cutter having a pair of cutter blades located on the same line as the respective cutter blades above the lower cutters to make a cut in a portion located above the lump of the packaging bag, and the lower side It is composed of a cutter and an elevating mechanism for elevating the upper cutter.

Further, it is preferable that an air supply means is provided in the middle of the carrying means to have a needle portion which expands and contracts toward the packaging bag and which supplies air into the packaging bag through the needle portion.

[0012]

With the above construction, when the packaging bag containing the lump is conveyed by the conveying means, the fixing means holds the packaging bag together with the lump and fixes it at a predetermined position, and the cutting means is the lower cutter. Each cutter blade is pressed against the bottom side of the packaging bag, a notch is made at the tip of each cutter blade of the upper cutter at the upper end side of the packaging bag, and in this state, the lower cutter and the upper cutter are moved upward by the elevating mechanism. Thereby, in the packaging bag, each cut line from the bottom side to the upper end side of the lump is formed by the lower cutter, and each cut line that reaches the upper end part so as to be continuous with the upper side of each cut line by the upper cutter. Is formed.

Further, the needle of the air supply means is pierced into the packaging bag, and air is supplied into the packaging bag through the needle to inflate the bag, whereby wrinkles and folds of the packaging bag are extended.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. 1 to 7 by taking an apparatus for cutting a culture bag for artificially-grown wood as an apparatus for cutting a packaging bag.

In the figure, reference numeral 1 denotes a culture bag as a packaging bag placed on a conveyor belt 8 of a conveyor 6 which will be described later. The culture bag 1 has heat resistance even under a temperature of about 100 to 150 ° C., for example. It is formed in a bag shape from a transparent resin film such as polypropylene and has sufficient flexibility so that it is deformed according to the contents. Then, in the culture bag 1, as shown in FIG. 2, from the opening 1A on the upper end side,
For example, the sawdust 2 made of wood such as vertebrae and chestnuts is filled, and the sawdust 2 is inoculated with a fungus such as shiitake mushroom in a weakly pressurized state and then cultured as described below to artificially grow as a lump. It is designed to form a tree 3. Further, a suture portion 4 and a weld portion 5 are formed on the opening 1A side of the culture bag 1 by using a means such as suturing and welding.
Also, the welded portion 5 acts as a filter that prevents the invasion of bacteria while ensuring ventilation in the culture bag 1.

In this state, the culture bag 1 is made of artificial wood 3
Along with being placed in a predetermined temperature and humidity atmosphere for a long time, the mycelia such as shiitake mushrooms preliminarily inoculated on the artificial tree 3 are cultivated so as to spread in the culture bag 1.

Next, 6 is a culture bag 1 containing an artificial tree 3.
Is a conveyer that conveys in an upright state in the direction of arrow A. The conveyer 6 is a pair of frames 7 and 7 that are spaced apart from each other on the left and right of the conveyance direction and extend in the conveyance direction, and the respective frames 7 A protrusion 8 for roughly positioning the culture bag 1 containing the artificial wood 3 on the outer peripheral side of the conveyor belt 8 and the conveyor belt 8 provided therebetween.
A, 8A, ... Are provided in pairs at a predetermined interval. Then, the conveyor 6 is rotated by a drive source (not shown) so as to rotate the conveyor belt 8.
The culture bag 1 placed above is intermittently conveyed in the direction of arrow A.

Reference numeral 9 denotes a guide rail which is disposed above the conveyer 6 and extends in the conveying direction. The guide rail 9 is separated by a predetermined distance at a cutting position of a cutting device 10 described later. The guide rail 9 is composed of left and right rails 9A, 9A and 9B, 9B arranged two by two. The guide rail 9 has an opening 1A between the rails 9A, 9B.
The side is supported in a state of being extended in the transport direction. Further, as shown in FIG. 3, an insertion hole 9C is formed in each of the rails 9A and 9B, through which a rod 19A of a bag stopper cylinder 19 described later is inserted, and is coaxially provided in the left-right direction near the cutting position. ing.

Reference numeral 10 denotes a cutting device for the culture bag 1 provided in the middle of the conveyor 6, and the cutting device 10 is composed of a fixing mechanism 11, a cutting mechanism 14 and an air supply mechanism 20 which will be described later.

Reference numeral 11 denotes a fixing mechanism as fixing means provided between the frames 7, and the fixing mechanism 11 is
A sandwiching portion 12 which is arranged apart from each other in the left-right direction of the conveyor 6 and whose upper end penetrates the frame 7 and is bent toward the conveyor belt 8 side.
It is attached to the lower surface side of one of the frames 7 and the L-shaped holding plates 12 and 12, which are A, via the bracket 13A,
Each holding plate 1 is formed by expanding and contracting a rod (not shown).
The fixing mechanism 11 has a holding cylinder 13 for moving the two closer to and further away from each other, and the fixing mechanism 11 stops the culture bag 1 containing the artificial wood 3 conveyed by the conveyor 6 in the arrow A direction at the cutting position. Sometimes, the holding portion 12A of each holding plate 12
Then, the outer peripheral surface of the artificial tree 3 is clamped and positioned together with the culture bag 1.

Reference numeral 14 denotes a cutting mechanism provided above the fixing mechanism 11 as a cutting means, and the cutting mechanism 14 includes an elevating frame 15, a side cutter 16, an upper cutter 17, an elevating cylinder 18, etc., which will be described later. It is roughly composed.

Reference numeral 15 denotes an elevating frame provided above the conveyor 6 so as to be movable up and down.
It is formed in an H shape from a pair of side plate portions 15A, 15A that extend in the up-down direction and are separated in parallel in the left-right direction, and a connecting portion 15B that connects the side plate portions 15A.

Reference numerals 16 and 16 denote side face cutters as a pair of lower side cutters provided on the lower end sides of the side plate portions 15A of the elevating frame 15, and the side face cutters 16 are
A cutter arm 16A whose upper end side is rotatably attached to the side plate portion 15A and whose lower end side extends downward to become a free end, a cutter blade 16B attached to the lower end side of the cutter arm 16A, and the side plate portion. A cylinder 16 attached to 15A for rotating the cutter arm 16A in the directions of arrows B and C by expanding and contracting a rod 16C.
D and.

Reference numerals 17 and 17 denote upper cutters as a pair of upper cutters provided on the elevating frame 15 above the side cutters 16. The upper cutters 17 are connected to the elevating frame 15. The lower arm portion 15B is rotatably attached to the side plate portion 15A.
A rotating bracket 17B protruding through A, a cutter blade 17C attached to the rotating bracket 17B so as to extend downward, and an upper end of the side plate portion 15A. It comprises a cutter blade 17C and a cylinder 17E which rotates the cutter blade 17C in the directions D and E. In addition, each of the upper cutters 17
The cutter blades 17C are in sliding contact with each other like scissors on the same line as the cutter blades 16B of the side surface cutters 16.

Reference numeral 18 denotes an elevating cylinder which is located above the elevating frame 15 and is attached to the cylinder bracket 18A as an elevating mechanism. The elevating cylinder 18 elevates and lowers the elevating frame 15 connected to the tip of the rod 18B. It is a thing.

Reference numeral 19 denotes each rail 9 on the left side of the guide rail 9.
A pair of bag-stop cylinders (only one of which is shown) positioned at A and mounted coaxially with the insertion hole 9C are shown.
When the culture bag 1 conveyed by the conveyer 6 is stopped at the cutting position, the rod 9A extends to fix the culture bag 1 through the opening 1A side of the culture bag 1 arranged between the rails 9A and 9B. 1A of the opening for cutting the culture bag 1
It is intended to prevent the displacement of the side.

Reference numeral 20 denotes an air supply mechanism which is located on the upstream side of the fixing mechanism 11 and is provided on the frame 7 as an air supply means. The air supply mechanism 20 includes a support column 20A provided on the frame 7. A cylinder 20C mounted on the column 20A and arranged so that the rod 20B faces the culture bag 1 side stopped at the cutting position; and a cylinder 20C attached to the tip end side of the rod 20B, and when the rod 20B extends, 1
A hollow needle portion 20D that is pierced in the inside is generally formed, and the needle portion 20D is connected to a compressor (not shown) via an air hose 20E and the like.

When the culture bag 1 accommodating the artificial wood 3 stops at the cutting position of the cutting device 10, the air supply mechanism 20 extends the rod 20B of the cylinder 20C to extend the tip of the needle 20D to the culture bag. 1 and swell the culture bag 1 by blowing air into the culture bag 1 through the air hose 20E, the needle portion 20D, etc. so that wrinkles and folds of the culture bag 1 can be extended. Has become.

The cutting device 10 for the culture bag 1 according to this embodiment has the above-mentioned structure. Next, the operation will be described with reference to FIGS. 1 to 7.

First, the culture bag 1 containing the artificial tree 3 and having the opening 1A side guided by the guide rail 9 is conveyed on the conveyor belt 8 of the conveyor 6 to the cutting position of the culture bag 1 shown in FIG. When it comes in, the conveyor 6 is temporarily stopped, and the holding plates 12 are held by the left and right holding cylinders 13, 13.
Is pushed toward the outer peripheral surface of the artificial tree 3 and, as shown in FIG. 3, the artificial tree 3 in the culture bag 1 is fixed at this cutting position between the sandwiching portions 12A. Then, when the fixing of the artificial wood 3 by the fixing mechanism 11 is completed, the rod 19A of each bag stopping cylinder 19 is extended to penetrate the opening 1A side of the culture bag 1 so that the opening 1A side faces the guide rail 9 side. Fix and prepare for cutting.

Next, in this state, the rod 20B of the air supply mechanism 20 is extended to supply air into the culture bag 1 through the needle portion 20D, and the culture bag 1 is inflated by the air to prevent wrinkles and creases. It is designed to stretch.

Then, when the preparation for cutting is completed as described above, in the cutting mechanism 14, the cutter arm 16A of each side cutter 16 is rotated in the direction of arrow B, and as shown in FIG. The cutter blade 16B attached to the tip of 16A is pressed against the bottom side of the culture bag 1. At the same time, the cutter blade 17C of each upper cutter 17
The cutter blade 17C is cut into the upper side of the culture bag 1 and the tip side thereof is crossed in the culture bag 1 by rotating the cutter blade 17C in the direction of the arrow D through the rotation bracket 17B. As a result, in the culture bag 1, as shown in FIG. 5, a cut 21A formed by each side cutter 16 is formed on the bottom side, and a cut 21B formed by each upper cutter 17 is formed on the same side on the same line.

When the cutters 16 and 17 form the predetermined cuts 21A and 21B in the culture bag 1, as shown in FIG. 6, the cutter blades 16B and 17C are left as they are and the rod 18B of the elevating cylinder 18 is left. And the cutters 16 and 17 are moved upward together with the lifting frame 15. Thereby, the cutter 16 for each side surface has its cutter blade 16B moved upward from the notch 21A toward the notch 21B, as shown by the alternate long and short dash line in FIG.
In each of the upper cutters 17, the cutter blade 17C is moved from the notch 21B to above the opening 1A, as shown by the chain double-dashed line in FIG. As a result, the culture bag 1 is continuously formed with cuts 21 extending from the bottom side to the upper end, as shown in FIG. 7.

On the other hand, when the predetermined cut 21 is formed in the culture bag 1, the cutter blade 16B of each side cutter 16 is moved in the arrow C direction, and the cutter blade 17C of each upper cutter 17 is cut.
Are each rotated in the direction of arrow E to reduce the rod 19A of each bag stop cylinder 19 to release the fixation of the culture bag 1 on the side of the opening 1A and release the fixation of the artificial wood 3 by the fixing mechanism 11. To do. Then, the conveyor belt 8 of the conveyor 6 is re-driven to convey the culture bag 1 together with the artificial tree 3 toward the peeling device (not shown) for the culture bag 1 on the downstream side.

Thus, according to the present embodiment, the notch 2 is cut into the culture bag 1 by each side cutter 16 and each upper cutter 17.
1A and 21B are formed, and by moving the cutters 16 and 17 upward by the lifting cylinder 18, the cuts 21A and 21B are extended upward to form a cut 21 reaching from the bottom side to the upper end. Therefore, the cut 21 can be formed in the culture bag 1 in a single step, the number of steps for cutting the culture bag 1 can be reduced, and productivity can be significantly improved. It is possible to simplify the cutting device 10 and reduce the manufacturing cost.

Further, since the cutting device 10 can form the cut 21 extending from the bottom side to the upper end in the culture bag 1, the discharging device on the side of the opening 1A after excision, which is required in the prior art, is eliminated. Therefore, the processing device can be simplified and the cost can be further reduced.

Further, before the culture bag 1 is cut, air is supplied into the culture bag 1 by the air supply mechanism 20 so that wrinkles, folds and the like of the culture bag 1 are extended, so that each side cutter 16. It is possible to prevent defective cutting when the culture bag 1 is cut by the upper cutter 17, and to reliably form continuous cuts 21.

Since the opening 1A side of the culture bag 1 is fixed to the guide rail 9 side by the bag stopper cylinder 19, the opening 1A is cut by each upper cutter 17.
When the side is cut, it is possible to effectively prevent the opening 1A side from escaping and causing defective cutting.

In the above embodiment, the cutting device 10 for the culture bag 1 containing the artificial tree 3 has been described as an example.
The present invention is not limited to this, and can be applied to a device for cutting a culture bag containing an artificial medium such as mushrooms or plants other than shiitake mushrooms.

[0040]

As described above in detail, according to the present invention, the packing bag containing the lumps intermittently conveyed by the conveying means is clamped by the fixing means and fixed at a predetermined position, and the lower cutter of the cutting means is used. Press each cutter blade on the bottom side of the packaging bag,
Make a notch on the top side of the packaging bag with the tip of each cutter blade of the upper cutter, and in this state by moving the lower cutter and the upper cutter upward by the elevating mechanism, the packaging bag from the bottom side by the lower cutter. The cuts reaching the upper end side of the lump can be formed by the upper cutter so as to respectively reach the upper end part so as to be continuous with the upper end side of the respective cuts, and the cut lines reaching the bottom end side to the upper end part can be formed. Therefore, the cutting operation of the packaging bag can be completed in a single step, the number of working steps can be reduced and the productivity can be improved, and the configuration can be simplified to manufacture the device at low cost.

Further, the needle portion of the air supplying means is pierced into the packaging bag, and air is supplied into the packaging bag through the needle portion to inflate the bag so that wrinkles and folds of the packaging bag can be extended. Therefore, when the packaging bag is cut, it is possible to prevent the packaging bag from escaping from the lower cutter and the upper cutter to cause defective cutting, and it is possible to surely form each cut.

[Brief description of drawings]

FIG. 1 is an external perspective view showing a cutting device according to an embodiment.

FIG. 2 is an external perspective view of a culture bag containing the artificially-grown wood shown in FIG.

FIG. 3 is an operation explanatory view showing a state in which the culture bag is fixed to the cutting position together with the artificially-grown tree by the fixing mechanism.

FIG. 4 is an operation explanatory diagram similar to FIG. 3, showing a state in which the cutter blades of the side surface cutters and the upper side cutters are cut into the culture bag.

5 is an external perspective view similar to FIG. 2, showing a culture bag in which each incision is formed by the cutter blade of each side cutter and upper cutter.

FIG. 6 is an operation explanatory view similar to FIG. 3, showing a state in which each side cutter and upper cutter are moved upward by the lifting cylinder.

7 is an external perspective view similar to FIG. 2, showing a culture bag in which a cut is formed from the bottom side to the upper end.

[Explanation of symbols]

 1 Culture Bag (Packing Bag) 3 Artificial Wood (Bulk) 6 Conveyor (Conveying Means) 10 Cutting Device 11 Fixing Mechanism (Fixing Means) 14 Cutting Mechanism (Cutting Means) 16 Side Cutter (Lower Cutter) 16B, 17C Cutter blade 17 Upper cutter (upper cutter) 18 Lifting cylinder (lifting mechanism) 20 Air supply mechanism (air supply means) 20D Needle part 21 Cut 21A, 21B Cut

Claims (2)

[Claims] 1. A packaging bag containing a lump in its interior, a transporting means for intermittently transporting the packaging bag in an upright state, and a packaging bag provided in the middle of the transporting means to transport the packaging bag to a predetermined position. And a fixing means for sandwiching and fixing the packaging bag together with a lump from both sides in the left-right direction of the conveying means, and a cut provided on the packaging bag and extending from the lower end side to the upper end portion. And a cutting means for inserting the cutting means, the cutting means includes a lower cutter that presses a cutter blade from both left and right sides to a portion of the packing bag located on the outer peripheral side, and each of the cutter blades above the lower cutter. An upper cutter that has a pair of cutter blades that are located on the same line and that makes a cut in a portion located above the lump of the packaging bag, and an elevating mechanism that elevates and lowers the lower cutter and the upper cutter. Packaging bag Cutting device. 2. An air supply means for supplying air into the packaging bag via the needle portion is provided in the middle of the conveying means, the needle portion extending and contracting toward the packaging bag. 1. The packaging bag cutting device according to 1.