JPH0423922A - Method for removing culture medium of mushroom and device therefor - Google Patents

Abstract

PURPOSE:To surely and quickly remove a culture medium already used by holding the culture medium positioned in the center of a culturing bottle in a pipe as the first process to remove the culture medium and advancing and retreating a scraping means while rotating in the culturing bottle in the secondary process. CONSTITUTION:The mouth 14 of a culturing bottle 13 is turned downward together with container 12 by a reversing device A and a pipe 18 is thrust into the culturing bottle 13 while rotating toward the center of culture medium to hold the culture medium in the pipe 18 under pressure. When the pipe 18 is pulled out, the culture medium is taken out from the culturing bottle 13 in a state held in the pipe 18 and the culture medium in the center of the culturing bottle 13 is cylindrically removed. In the second process, a scraping means 27 is rotated in the culturing bottle 13. Thereby the center of the bottle 13 is pulled out and the culture medium remaining around the inner wall of the culturing bottle 13 is cut and discharged from the opening 14 to the outside. As a result, discharge of culture medium can smoothly and quickly be carried out.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a removal device for removing used culture medium from a culture bottle after harvesting mushrooms in artificial cultivation of mushrooms.

(Conventional technology and its problems) In the artificial cultivation of mushrooms, it is common to use culture bottles, but in order to reuse the culture bottles, after mushrooms are harvested, the used culture medium inside must be removed. A new culture medium is being refilled.

Conventional culture medium removal is accomplished by moving a spatula or blade forward and backward into a culture bottle while rotating, as shown in the ideas described in Utility Model Publication No. 10783/1983 and Patent Publication No. 57/9323. However, since the cut culture medium must pass through the bottle opening, it is desirable to cut it as finely as possible, and it is common to use a spatula or blade to move it back and forth several times. This is because if it is roughly scraped, a lump of culture medium will get caught in the mouth of the bottle and subsequent culture medium will not be able to be discharged. In this way, the scraping blade has to be moved back and forth several times, which takes a considerable amount of time.

Particularly in recent years, there has been a tendency to cultivate culture with a high moisture content in the culture medium, so the culture medium after harvest has a relatively strong viscoelasticity, and even if it is cut by rotating a scraping means such as a spatula or a blade, the cut pieces will not be able to interact with each other. When trying to pass through the narrowed bottle opening, it sticks together again, blocking the bottle opening of the culture bottle and preventing the continuous escape of the culture medium.As a result, a considerable amount of the culture medium is not scraped out, and the culture medium is not scraped out. It will remain in the bottle.

In order to avoid such unscraped surfaces, various measures have been taken, such as increasing the rotational speed of the spatula or blade, or scraping twice or even three times, but in reality the problem of unscraped surfaces does not occur. Moreover, it requires constant monitoring, which causes a decrease in work efficiency.

(Means for Solving the Problems) The present invention has been made in view of the fact that the culture medium cannot be removed reliably and quickly with the conventional methods as described above.
The gist is that in the process of removing the culture medium in the culture bottle, the culture medium in the center of the culture bottle is removed by moving the pipe back and forth inside the culture bottle to trap it in the vibrator. This is a method in which the pipe is introduced into the culture medium while being rotated. In addition, the above is the first step, and in the second step that follows, the remaining culture medium is scraped out by moving the scraping means forward and backward while rotating in the culture bottle, or by blowing compressed air. A method for removing a mushroom culture medium characterized by:

That is, the present invention is characterized in that a pipe is basically used in the first step to perform the scraping work quickly and reliably. Insert the culture medium in the center of the bottle into the pipe.

The culture bottle is usually made of plastic such as polypropylene, and the diameter of the bottle is about half the diameter of the body, and the capacity is 800 cc.

The culture bottles that are the object of the present invention have culture medium left after harvesting, and it is preferable to process a plurality of bottles at a time while storing them in a container for 16 people.

The first step is characterized by the operation of inserting a pipe into the center of the culture bottle and pulling it out, that is, moving it forward and backward. The pipe is made of metal material such as iron or stainless steel, and is usually hollow and cylindrical in shape, and its diameter is slightly smaller than the inner diameter of the opening of the culture bottle (the pipe should be at least the full height of the culture bottle so that the tip reaches near the bottom). It is desirable to have a length of , with a sharp tip edge.

Such pipes are moved forward and backward by any mechanical means, and usually, in order to simultaneously process 16 pipes in a container, they are thrust into the mouth of each culture bottle and pulled out all at once. At this time, it is desirable to enter the pipe while rotating. The maximum depth to which the pipe enters the culture bottle is preferably near the bottom.

Furthermore, when the pipe is pulled out and reset, it is desirable to expel the culture medium trapped by the pipe to the outside by pushing it out each time. After it is held in the mouth, it may be pushed out to the outside.

The culture medium that is removed in the first step is the central part of the culture bottle, and the remaining culture medium is removed in the second and subsequent steps.

The second step is to scrape out the remaining culture medium by rotating a scraping means within the culture bottle, although there are various methods. The scraping means may be any means as long as it rotates to cut or break down the culture medium and scrape it out to the outside. The remaining culture medium can be forcibly removed by forcefully blowing compressed air with a compressor, etc. As a secondary removal process, the remaining culture medium can be forcibly removed by blowing compressed air strongly with a compressor, etc. Suggested.

The present invention also includes an apparatus for carrying out the above-mentioned first step.

Its gist is that it consists of a means for fixing a plurality of culture bottles in a container, a pipe that moves forward and backward into the culture bottle, and an extrusion means that pushes out the culture medium held in the vibrator from the pipe. This is a mushroom culture medium removal device characterized by:

A container is a container that stores a plurality of culture bottles in a row, and 4x4 containers that can accommodate 16 bottles are currently in widespread use. The culture bottles are transported in containers using a conveyor or the like.

First, the means for fixing the culture bottle in the container is to prevent the culture bottle from lifting up due to the upward force applied to the culture bottle due to the operation described below.
The culture bottle is fixed in the container by means of an angle material that holds down one shoulder, a plate with a hole drilled at a position corresponding to the bottle opening of the culture bottle, and a means for moving it toward and away from the culture bottle.

The pipe is hollow and made of metal such as iron or stainless steel, and is placed opposite the opening of each fixed culture bottle. Although it is usually the vibrator that moves forward and backward, it is also possible to fix the pipe and move the culture bottle toward and away from the pipe. Although one pipe is provided for each culture bottle, a plurality of pipes may be provided.

Furthermore, the pipe is provided with rotation means, at least on entry, from which it is pierced into the culture medium.

This specification assumes that the container and culture bottle are fixed and the pipe is moved toward and away from them, but
Of course, this is relative, and the containers and culture bottles may be moved and other devices or members, such as pipes, may be fixed. Furthermore, it is possible to move the pipe forward and backward from above while the culture bottle is fixed to the container, and it is also possible to invert the culture bottle together with the container and insert the pipe from below.

The present device further comprises extrusion means for extruding the culture medium held in the pipe from the pipe, and the means consists of a thrust rod and an extrusion piece formed at the tip thereof and smaller than the inner diameter of the pipe, The pipe is fixedly provided in a position through which the hollow portion passes when the pipe is retracted from the culture bottle and reset.

Furthermore, in addition to a device consisting of a means for fixing a plurality of culture bottles in a container, a pipe that moves forward and backward into the culture bottle, and an extrusion means for pushing out the culture medium held in the pipe from the pipe, It is desirable that devices equipped with ejecting means be connected in series via a conveyor.

This scraping means consists of a spatula with its tip bent and used as a cutting part, planted on a rotating shaft, and the cutting part is pressed against the inner wall of the culture bottle by a spring and rotates while moving forward and backward within the culture bottle. It is something.

(Function) First, in the first step of removing the culture medium in the culture bottle, when a vibrator is introduced into the culture bottle, the vibrator is rotated or stuck into the center of the culture medium, and the culture medium is moved by the depth that the vibrator entered. Go inside. The culture medium that has entered the pipe is pressed into the pipe and is trapped, and when the vibrator is pulled out in this state, the culture medium inside the pipe is captured and removed from the culture bottle, extending from the mouth of the culture bottle to near the bottom. The culture medium in the center of the culture bottle is removed in a cylindrical shape.

The culture medium held in the vibrator and taken out from the culture bottle is discharged from the vibrator to the outside by the extrusion means passing through the pipe.

In the second step, by rotating a scraping means or the like inside the culture bottle, the center is removed and the remaining culture medium circulating around the inner wall of the culture bottle is cut and released from the opening of the culture bottle to the outside. be discharged.

In this second step, the center culture medium has already been removed in a cylindrical shape from the bottle mouth to the bottom in the first step, so the center of the culture medium is cut in the second step. A tunnel passage through which the culture medium should fall is formed from the mouth of the bottle to near the bottom, and the second
This allows for smooth release of the culture medium that will be cut in the next process.

(Example) The following description will be made with reference to the drawings shown as examples. Reference numeral 1 represents a culture medium removal device equipped with a vibrator, and 2 represents a culture medium removal device equipped with a rotating surface. Below, they will be explained simply as device 1 and device 2.

The apparatus 1 and the apparatus 2 are connected by a conveyor 3, and each apparatus is provided with a reversing device A for a container containing a culture bottle, and a part of the conveyor 3a.

3b is rotatable, and there are gaps on both sides of the conveyors 3a and 3b to provide room for rotation.

In the device 1, 4 is a base frame, and a conveyor 3 is installed on the base frame 4, and a part of the center is a rotary conveyor 3a that can rotate around a shaft 5 with gaps on both sides. . 6 is a servo motor that rotates the shaft 5 in forward and reverse directions.

Above the rotary conveyor 3a, a holding plate 7 has four corners fitted loosely into guides 8, and a rotary shaft 9 erected in the center of both sides.
The rack 11 is engaged with a worm gear 10 provided at the upper end of the rack 11 and held therein. Then, the bottle opening 1 is placed on the presser plate 7 facing the culture bottle 13 housed in the container 12.
A hole 15 slightly larger than 4 is provided, and when the rotating shaft 9 is rotated by a drive source (not shown) for the rotating shaft 9, the culture bottle 13 in the container 12 is pressed toward the conveyor 3a.

A screw rod 16 is erected below the base frame 4, a lifting table 17 is suspended from the screw rod 16, and a plurality of vibrators 18 are installed on the lifting table 17. 19 is a rotating means for rotating this vibrator 18. Reference numeral 20 denotes a fixed base provided under the lifting platform 17, and a push rod 21 that passes through the inside of the pipe 18 is implanted in this fixed base 20. A push-out piece 22 is formed at the tip of the thrust rod 21, which is substantially inscribed in the vibrator 18 and projects above the vibrator 18 when the vibrator 18 reaches the lowest position. 23 is a motor for lifting and lowering, and 24 is a belt that rotates the screw rod 16.

The device 2 is also provided with a reversing device A, and the configuration of each part thereof is the same as that of the device 1. Two lifting tables 25 and 26 are provided below the base frame 4, and means for raising and lowering the lifting tables 25 and 26, although not shown, are provided in the same way as in the device 1. The lifting platforms 25, 26 move up and down in parallel. A rotating surface 27 whose tip is bent into an L-shape is erected on the lower lifting platform 25 . 28 is its rotation means. The upper elevating table 26 has a guide tube 29 that guides the rotating surface 27 into the culture bottle 13, and the tip of the rotation 's27 is located within the guide tube 29.

(Effects) As described above, in the present invention, when removing the culture medium from the culture bottle, a space equal to the shape of the pipe is formed in the center of the culture medium from the bottle mouth to the bottom by moving the pipe forward and backward, and Because there is a space between the parts, when scraping is performed later, the culture medium that is about to fall during the scraping operation can fall while using the space in the center leading to the bottle opening as a passage, so it can be used as a secondary process. In removing the remaining culture medium, there is no need to repeat the scraping operation, and it is sufficient to perform the scraping operation once, and the culture medium can be discharged smoothly and quickly. Since such a central passage is formed instantaneously by moving the pipe forward and backward, there is almost no time loss, and the overall working time for removing the culture medium can be significantly shortened. Particularly, when entering the pipes while rotating them, it is possible to smoothly enter a large number of pipes into the culture medium at once with little force.

[Brief explanation of drawings]

FIG. 1 is a side view of a culture medium removal device in which devices 1 and 2 are arranged in a line using a conveyor, and FIG. 2 is a front view of the device 1. 1 - Apparatus 3 - Conveyor 5 - Shaft 7 - Holder plate 9 - Kashiwa mochi 11 - Rack 13 - Culture bottle 15 - Hole 17 - Lifting table 19 - Rotating means 21 - Push rod 23 - Lifting motor 25 - Lifting table 27 - Rotary knuckle 29 - guide tube 2 - device 4 - base frame 6 - servo motor 8 - guide 10 - worm gear 12 - container 14 - bottle mouth 16 - screw pestle 18 - pipe 2〇 - fixed stand 22 - extrusion piece 24 - belt 26 - Lifting platform 28 - rotation means

Claims (10)

[Claims] (1) A method for removing a mushroom culture medium, which is characterized in that in the culture medium removal step, a pipe is moved back and forth within the culture bottle to trap and remove the culture medium in the center of the culture bottle within the pipe. (2) A method for removing a mushroom culture medium according to claim 1, which comprises introducing the pipe into the culture bottle while rotating the pipe. (3) A method for removing a mushroom culture medium according to claim 1, which comprises releasing the culture medium trapped inside the pipe to the outside when the pipe is retracted and reset. (4) After moving the pipe forward and backward, the remaining culture medium is scraped out by inserting a scraping means into the culture bottle and rotating it. How to remove (5) A method for removing a mushroom culture medium according to claim 1, characterized in that after moving the pipe forward and backward, the remaining culture medium is blown away by blowing compressed air. (6) A mushroom culture medium characterized by comprising means for fixing the culture bottle in a container, a pipe that moves forward and backward into the culture bottle, and extrusion means for pushing out the culture medium held in the pipe from the pipe. removal device (7) The extrusion means consists of a push rod and an extrusion piece formed at the tip thereof and smaller than the inner diameter of the pipe, and the extrusion piece is in a position where it passes through the pipe when the pipe is retreated from the culture bottle and reset. The mushroom culture medium removing device according to claim 6, characterized in that it is fixedly provided. (8) The mushroom culture medium removing device according to claim 6, characterized in that the pipe is equipped with a rotating means. (9) The mushroom culture medium removing device according to claim 6, comprising a device for inverting a container containing a culture bottle, and moving the pipe forward and backward from below when the container is inverted. (10) The mushroom culture medium removing device according to claim 6, characterized in that a device equipped with means for scraping out residual culture medium is connected in series via a conveyor.