JP5544528B2 - Method and apparatus for automatically forming and inserting fiber body - Google Patents

Description

  The present invention relates to a method and an apparatus for automatically forming and inserting a fiber body that is cut out from a natural fiber sheet such as cotton, a predetermined weight, and molded into a container such as an ampoule.

  In the research field of microorganisms, a specific microorganism is inserted into the bottom of an elongated glass container (hereinafter referred to as an “ampoule”), filled with a breathable stopper, used as a lid, and cultured under conditions of predetermined temperature, light, etc. Things have been done. Except for special microorganisms such as anaerobic, it is generally necessary to ensure the supply of oxygen for respiration during culture. On the other hand, contamination with foreign organisms must be avoided in the container. Therefore, it is necessary to cover with a breathable stopper, that is, a culture stopper.

  As the breathable stopper, natural cotton that is easy and inexpensive to sterilize is preferred. In particular, non-defatted cotton sold under the name “Ome cotton” is often used for medical and biological purposes. This is due to the fact that absorbent cotton has a weak trapping ability for particles such as bacteria, and that there is a tendency to increase contamination due to falling off of cotton fibers.

  Ome cotton is generally distributed in a 650mm x 1100mm thin sheet folded in a bag, so it is opened and spread on a flat surface, and a predetermined amount of fiber is picked with tweezers. Process into the shape of a plug to make a cotton plug. Traditionally, these are all manual operations.

  FIG. 22 is a perspective view showing the Ome cotton sheet, where (a) shows a folded state, (b) shows a state opened in a plane, and in a distribution state, the Ome cotton sheet S is folded and placed in a bag E of resin or the like. It has been.

  In order to cultivate a large number of samples under the same conditions, it is necessary to cut out a certain weight of cotton and process it into a plug shape, but natural cotton has uneven density, and a certain area from the sheet. The weight does not become constant when cut out. Then, while weighing the cut weight with a precision balance such as an electronic balance, cotton was added or removed so as to obtain a predetermined constant weight.

  The ampule has dimensions of an outer diameter of 8 mm, an inner diameter of 6 mm, and a length of 135 mm, for example. The sample is inserted at the bottom and the cotton plug is inserted in the middle.

  As shown in FIG. 23, the cotton plug T is preferably formed into an elongated cylindrical shape with a sharp top. When the upper part is pointed like this, it is convenient to pinch this part and put in and out the cotton plug. The allowable range of the weight of the cotton plug is, for example, (63 ± 2) mg, (70 ± 2) mg, or the like.

  Conventionally, cotton plugs have been formed into this shape by bending a lump of cotton having a predetermined weight and squeezing it with a fingertip, so that the productivity is low and the shape is not uniform.

  Patent Document 1 describes a cotton plug forming device that allows anyone to easily manufacture a dental cotton plug using a simple mold. The cotton plug of the present invention has a target shape. In addition, the structure is different, such as using a metal needle as the core, and it is not a technique or device that can replace the manual operation of making the above-described cotton plug.

Japanese Patent Laid-Open No. 11-137469

  The present invention automatically and efficiently performs a series of operations such as cutting of natural fibers from a sheet, forming into a plug shape, and inserting into an ampoule, all of which have been manually performed in this way. It is an object of the present invention to realize a method and apparatus for automatically forming and inserting a fibrous body to be achieved.

  According to the first aspect of the present invention, a fibrous body cut out from a sheet by a predetermined weight is automatically formed into an elongated cotton plug having a cylindrical shape with a sharp upper end, and the cotton plug is inserted into a container. In the automatic molding and insertion method, a fibrous body cut by a predetermined weight from the sheet is placed on a cylindrical molded pipe disposed on a ventilation member that allows exhaust while holding the fibrous body, After pushing this fibrous body into the molded pipe with the pusher, the circumferential direction around the central axis of the molded pipe from a plurality of small holes opened on the inner peripheral surface side of the molded pipe The fiber body inside the molded pipe is rotated by an air current for a predetermined time by blowing a gas toward the end to form the fiber body into an elongated shape with a sharp upper end to form a cotton plug, and then the molded pipe is used as a ventilation member. Container from above The cotton plug is inserted into the container from the molded pipe by a pipe-like second pusher having an outer diameter commensurate with the inner diameter of the molded pipe. This is an automatic molding insertion method.

  The present invention according to claim 2 is a fiber body in which a fiber body cut out by a predetermined weight from a sheet is automatically formed into an elongated cotton plug having a cylindrical shape with a sharp upper end, and the cotton plug is inserted into a container. An automatic molding insertion device, wherein a gas is blown out in a circumferential direction centering on a central axis of the molding pipe on the inner peripheral surface of the molding pipe into which the fibrous body of the predetermined weight is inserted. A plurality of small holes that are opened to rotate the fibrous body, a first pusher that pushes the predetermined weight of the fibrous body into the molded pipe, and one end of the molded pipe. A ventilation member that allows exhaust while holding the fibrous body in the molded pipe, a moving means that relatively moves the molded pipe from the ventilation member to the container, and a cotton molded in the molded pipe In front of the stopper Inserting from the molding pipe in the container, an automatic molding insertion device fibrous body, characterized in that it comprises a second pusher pipe-shaped having an outer diameter commensurate with the inner diameter of the forming pipe.

The present invention described in claim 3 is a quantitative cut-out section that cuts out a predetermined weight of fiber from a sheet-like natural fiber, and a molded insert that automatically forms the cut-out fiber into the shape of a culture stopper and inserts it into a container A container table on which containers for culturing are arranged, and a transport means for transporting between the quantitative cutout part, the molding insertion part, and the container base, and the quantitative cutout part is a sheet-like natural Feeding means for feeding a predetermined amount of fiber, a clamp for holding the fed sheet in that state, a chuck for gripping one end of the fed sheet, and moving the chuck away from the sheet to cut the gripped sheet The chuck moving means, the weighing means for measuring the weight of the cut piece of the cut sheet, and the sheet to be added obtained from the difference between the measured value by the weighing means and a predetermined target value. And calculating means for determining the position of the chuck for gripping the sheet to be added from the weight of the small piece and the size of the sheet to be added to the weight, and the forming insertion portion of the fibrous body includes the fiber of the predetermined weight A molded pipe into which the body is inserted, and an opening is provided on the inner peripheral surface of the molded pipe so that a gas is blown out in a circumferential direction around the central axis of the molded pipe and the fiber body is rotated by the gas. A plurality of small holes formed, a first pusher for pushing the fiber body cut out to the predetermined weight into the molded pipe, a mesh body for placing the molded pipe, and lifting the molded pipe from the mesh body to A moving means for relatively moving to the top of the container; and a pipe-like second pusher for inserting a cotton plug formed in the forming pipe into the container from the forming pipe. It is automatic molding insertion device according to symptoms.

  According to a fourth aspect of the present invention, in the invention of the third aspect, the quantitative cut-out section is configured to feed a sheet-like natural fiber by a predetermined amount, a clamp that holds the fed sheet in that state, and A chuck for gripping one end of the fed sheet, a chuck moving means for moving the chuck away from the sheet and cutting the gripped sheet, a weighing means for measuring the weight of a small piece of the cut sheet, and its weighing The position of the chuck for gripping the sheet to be added is determined from the weight of the sheet piece to be added obtained from the difference between the measured value by the means and the predetermined target value and the size of the sheet to be added with respect to this weight. An apparatus for automatically forming and inserting a fibrous body, further comprising a computing means.

According to a fifth aspect of the present invention, in the invention of the third or fourth aspect , the quantitative cutout portion, the molding insertion portion, and the conveying means are all housed in a single closed cabinet with a door. It is the automatic shaping | molding insertion apparatus of the fiber body.

According to a sixth aspect of the present invention, in any one of the third to fifth aspects of the present invention, a plurality of containers are arranged in a row or a plurality of rows of container stands, and the destination of the transport means is the container. It is a fiber body automatic molding and insertion device having a multiple position selection function corresponding to a position.

  According to the apparatus and method of the present invention, production efficiency is improved and costs are reduced by automating a series of operations such as forming a culture stopper from a natural fiber sheet into a shape of a culture stopper and inserting it into a container. And the weight is constant and the quality is improved.

It is a block diagram explaining the fixed quantity cutout part of this invention Example. It is sectional drawing of the cut-out stand part of the fixed quantity cut-out part in an Example. It is a front view of the state which made the sheet | seat protrude from the cutting stand in an Example. It is the front view of the state which made the sheet | seat in an Example project similarly. It is a front view when the chuck | zipper in an Example is horizontally moved similarly. It is explanatory drawing of the state in which the chuck | zipper dropped the sheet | seat in the Example. It is explanatory drawing explaining the procedure which cuts out a small piece in multiple times in an Example. It is data which shows the weight measurement result in this invention Example. It is explanatory drawing explaining until it pushes in a shaping | molding pipe after measuring a fiber body in an Example. It is sectional drawing of the vertical direction of the shaping | molding pipe of this invention Example. It is sectional drawing which follows the AA line of FIG. It is a conceptual diagram which shows the state of the airflow in the shaping | molding pipe of this invention. It is explanatory drawing which shows the condition which moves a shaping | molding pipe from a shaping | molding stand to an ampule stand in an Example. It is explanatory drawing explaining the insertion in the ampule of the cotton plug in the shaping | molding pipe in an Example. It is a graph which shows the pulling-out force of the cotton plug in an Example. It is a front view which shows the automatic plugging apparatus of the culture plug of the 1st Example of this invention. It is a top view which similarly shows the automatic stoppering device of the culture stopper of the 1st Example of this invention. It is a front view which shows the shaping | molding insertion part in 1st Example of this invention. It is a side view which similarly shows the shaping | molding insertion part in 1st Example of this invention. It is a front view which shows the automatic stoppering device of the culture stopper of the 2nd Example of this invention. It is a side view which shows the automatic plugging apparatus of the culture stopper of the 2nd Example of this invention. It is a perspective view which shows the Ome cotton sheet | seat which is the raw material of a cotton plug. It is a front view which shows the shape of the cotton plug concerning this invention.

  The fiber body automatic molding / inserting device of the present invention is a quantitative cutout unit for cutting out a predetermined amount of fiber body from a sheet-like natural fiber, and the cut fiber body is automatically formed into a culture stopper shape and inserted into a container. A molding insertion section, a container base on which containers for culturing are arranged, and a transport means for transporting the fibrous body between these quantitative cutout section, the molding insertion section and the container base. Hereinafter, preferred embodiments of the present invention will be described in this order with reference to the drawings.

  FIG. 1 is a configuration diagram illustrating a quantitative cutout unit 1 according to an embodiment of the present invention. The fixed quantity cut-out section 1 feeds a predetermined amount of sheet-like natural fibers and cuts out small pieces from the natural fiber sheet S. The cut-out table 10 holds the sheet S, and the sheet S protruding above the cut-out table 10 A chuck (slicing unit) 13 that grasps the upper part, a part of the sheet S is shredded by moving the chuck 13, and a first conveying means 14 that transports the sheet S in the horizontal direction for weighing, and a weighing device 15 are provided. Prepare.

  FIG. 2 is a cross-sectional view showing the vicinity of the cutting table 10, and in this example, a natural fiber, for example, a raw material Ome cotton sheet S opened flatly as shown in FIG. A pair of feed rolls 12 (feed means) are provided, and a clamp 11 is provided that sandwiches and fixes a natural fiber sheet S when cutting. Therefore, the fixed quantity cut-out section 1 drives the feed roll 12 in a state where the clamping by the clamp 11 is released and rotates it in the direction of the arrow to raise the vertical sheet S by a predetermined amount. The sheet S is sandwiched and fixed close to the direction.

  In this example, the sheet S is configured to be raised vertically, but the sheet S may be configured to be sent out in the horizontal direction. In this case, the feed roll 12 and the clamp 11 are similarly controlled. Thus, the sheet S can be protruded by a desired length and fixed in that state. If the clamp 11 sandwiching the sheet S is configured to move in parallel, the clamp 11 can lift the sheet S while sandwiching the sheet S. Therefore, the clamp 11 can also function as the feed roll 12.

  FIG. 3 is a front view showing a state in which the sheet S is protruded from the upper edge of the cutting table 10 by a predetermined dimension a.

  FIG. 4 is a front view of the cutting table 10 for explaining the next state. The chuck (cutting unit) 13 disposed above the cutting table 10 and a lateral feed mechanism (first transport) for horizontally moving the chuck 13 are shown. (Means) 14 is shown. The lateral feed mechanism 14 is configured to combine a ball screw, a servo motor, and the like so that the position can be determined by accurately laterally moving the chuck 13. The chuck 13 may be opened and closed by an actuator such as an air cylinder, a stepping motor or a servo motor, or an appropriate opening / closing mechanism with a link mechanism added thereto. Further, the movement control by the lateral feed mechanism 14 may be performed by controlling the operation amount and timing by using a sensor such as a limit switch or a proximity switch, an output signal of the sensor, an end signal of the opening / closing operation of the chuck 13, and the like.

  The chuck 13 is configured to sandwich the end portion of the sheet S protruding above the cut-out table 10 from both the front and back surfaces. In FIG. 4, the front end (left end) of the chuck 13 is at a distance of a second predetermined dimension b (cut width) from the right end of the sheet S. The cut width b can be determined in advance since the average thickness and density of the sheet S to be used and the predetermined dimension a which is the vertical dimension to be cut are known.

  Next, FIG. 5 is a front view when the chuck 3 is horizontally moved by the lateral feed mechanism 14. Since the sheet S is a natural fiber, if the chuck 13 moves horizontally while sandwiching the sheet S, only the sandwiched portion is easily cut off and cut into small pieces P having an area of (a × b). At this time, the remaining portion of the sheet S is pressed by the clamp 11. In addition to the horizontal direction shown in the figure, it is also effective to provide a pressing portion 11a (indicated by an imaginary line) that presses a portion that is not torn off in the direction of rising from the cutting table 10.

  FIG. 6 shows a state in which the chuck 13 is moved horizontally onto a precision weighing device 15 such as an electronic balance and the small piece P of the gripped sheet is dropped.

  Although the area and weight of the original Ome cotton sheet S are known, the density and thickness are not uniform because of natural fibers. Accordingly, even if accurate values can be maintained by numerically controlling the feed roll 12 and the chuck 13 with respect to the protruding height a and the length b sandwiched by the chuck 13, the weight of the cut piece P varies. There is.

Therefore, since it is almost impossible to expect a small piece of the target weight by one-time cutting, the cutting amount of the _first small piece P1 is slightly smaller than the target value, and the chuck 13 is moved again. it is preferable to add cut a second piece P _2.

FIG. 7 is an explanatory diagram for explaining a procedure for cutting out the small pieces P ₁ , P ₂ , and P ₃ by determining the cutting widths b ₁ , b ₂ , and b ₃ with respect to a certain height a.

The density of the first piece P ₁ is calculated from the data of the weighing device 15. Dividing the measured value of the weight by the cut width b ₁ gives the weight per 1 mm width. The cut width b ₂ of the second small piece P ₂ to be added is determined from the difference from the target value of the weight, assuming that the density of the adjacent surrounding portions is the same. In any case, if a small area is estimated and cutting of small pieces is repeated, the total weight eventually reaches the allowable range of the target value.

  According to the experiments by the present inventors, it was possible to cut out the oume cotton having the target weight almost certainly by performing the cutting twice at the earliest and three times at the latest.

FIG. 8 shows the cut-out result of the Ome cotton sheet according to the present invention when the target weight value is (70 ± 5) mg. The dimension of the _first cut width b ₁ was 45 mm, and the deficiency was added in the second and third times. Of the 20 times, only the 19th case met the target lower limit with a weight of 65 mg at the first time. However, in all other cases, the target value was not reached, and 16 cases were the second time. The target value was reached, and in the other three cases, the target value was reached by the third addition, that is, two additions. All the weights were within the range of the target value by cutting up to three times, and as long as the inventors conducted experiments, there were no cases where the cutting had to be done four times or more.

  In the above embodiment, the fiber is not cut because the cotton is cut into pieces without using a blade as described above, so that the fiber does not fall into the ampoule when used as a cotton plug.

  In this embodiment, the sheet is pulled up in the vertical direction and the upper end is cut out in the horizontal direction. However, the quantitative cutout unit of the present invention is not limited to this. It is also possible to feed the sheet in the horizontal direction and cut it in the width direction. In this way, not only can the feeding be performed stably on the conveyor, but also the cut piece can be dropped onto the weighing device. It can be done reliably.

  It is also possible to use a blade together, such as providing a blade on the chuck 13. Therefore, the moving direction when cutting small pieces from the sheet is not limited to the width direction of the sheet, and may be a direction away from the sheet. Further, instead of actually measuring the density of the small pieces, the sheet density may be obtained in advance, and the cut dimensions may be determined using the data. Needless to say, the natural fiber of the present invention is not limited to Ome cotton and may be any other natural fiber.

  In the above example, when, for example, two cuts are added and a total of three small pieces are used for one cotton plug, the dimension a is common as shown in FIG. Since the length b is different, it is convenient to form two or three small pieces so that the center lines coincide with each other so that they can be formed into a plug shape in a later step.

  When the total weight of the fiber bodies reaches the target value, it is considered that the cutting has been completed, and the fiber bodies stacked on the weighing device are transferred to the forming table. Since both the weighing device and the forming table are determined in position, the transfer control is easy. Note that the mechanism for lifting the fiber body for transfer can have an appropriate configuration as needed, and for example, a mechanism for picking up with a pair of gripping claws, a mechanism for lifting by vacuum suction, or the like can be employed. Further, the transfer direction and the distance can be controlled in the same manner as the transfer from the cutting table 10 to the weighing device 15.

In FIG. 9, after the fiber body is weighed, the fiber body S is transported to the forming pipe 21 placed on the forming table 23 for forming into a cotton plug in the next process, and the fiber body S is cut into small pieces P (P _l to P ₃₎ is an explanatory view illustrating the process until pushed into the molding pipe 21. The molding table 23 includes a ventilation member such as a wire mesh on which the molding pipe 21 is placed on the upper surface thereof, and the fiber body S is molded into a cotton plug shape in the molding pipe 21.

FIG. 9A shows a state in which a total of three small pieces P _{1 to} P ₃ are placed on the weighing device 15. These small pieces P _{1 to} P ₃ are transferred onto the forming pipe 21 placed on the forming table 23 as shown in FIG. 9B by a second conveying means described later. Since the small pieces P _{1 to} P ₃ are stacked with the centers thereof aligned, as shown in FIG. 9C, the small pieces P _{1 to} P ₃ are pushed by pressing the centers with the first pusher 22 from above. It is pushed into the inner cylinder 211 of the molded pipe 21 so as to be bent. Since the fibrous body is folded in two at the center, the first pusher 22 has a thinner spatula shape than the round bar shape.

  As described above, the molding pipe 21 is placed on the ventilation member of the molding table 23. The ventilation member supports the fiber body rotating in the molding pipe 21 so as not to fall, and at the same time compressed air described later. Has a function to pass through.

  FIG. 10 is a longitudinal sectional view of the formed pipe, and FIG. 11 is a sectional view taken along the line AA. The formed pipe 21 shown in the figure is configured in a double cylindrical shape in which an inner cylinder 211 and an outer cylinder 213 having a larger diameter are arranged on the same axis. The inner cylinder 211 and the outer cylinder 213 have substantially the same length, and an O-ring is provided at both ends in the axial direction between the outer peripheral surface of the inner cylinder 211 and the inner peripheral surface of the outer cylinder 213. A sealing space 214 is formed between the outer peripheral surface of the inner cylinder 211 and the inner peripheral surface of the outer cylinder 213.

  A plurality of small holes 212 are formed in the inner cylinder 211 so as to penetrate through the inner and outer peripheral surfaces. These small holes 212 are for injecting gas to the inner peripheral side of the inner cylinder 211 along the inner peripheral surface as much as possible. In the example shown in FIGS. Two (ten in total) small holes 212 are formed in two places in the vertical direction at two locations facing each other in the direct connection direction 211. These small holes 212 are configured not to be directed in the radial direction of the inner cylinder 211 but to be inclined at a predetermined angle with respect to the radial direction so that an air flow along the inner peripheral surface of the inner cylinder 211 is generated. In particular, the four small holes 212 are arranged in a straight line from the substantially central portion in the vertical direction of the inner cylinder 211 to the lower side, and the other four small holes 212 are also linear in the same position. Are arranged side by side. The directions of these eight small holes 212 are inclined at the same angle in the same direction with respect to the radial line of the inner cylinder 211.

  On the other hand, another small hole 212 is formed at a position above the four small holes 212 that are arranged close to each other in a straight line, and another small hole is similarly formed at a position opposite to this. 212 is arranged. The pair of small holes 212 that are separated in the upward direction are slightly inclined with respect to the radial line of the inner cylinder 211 in addition to the inclination similar to the four or eight small holes 212 described above. It is formed as follows. Thus, the configuration in which the opening direction of the upper small hole 212 is directed downward is a configuration found by the present inventors through repeated experiments, and one end portion of a culture plug made of a natural fiber sheet is formed on the spire. This is a configuration that contributes to this.

  On the other hand, a blow pipe 215 for supplying gas to the inner peripheral side of the outer cylinder 213 is connected. That is, when a gas such as air is blown from the blow pipe 215 to the inner peripheral side of the outer cylinder 213, the gas is distributed to each small hole 212 described above by the sealed space between the inner cylinder 211 and the outer cylinder 213. The small holes 212 are supplied to the inner peripheral side of the inner cylinder 211, and as a result, an air flow along the inner peripheral surface is generated on the inner peripheral side of the inner cylinder 211. Therefore, the sealed space portion is a manifold.

  As shown by the arrows in FIG. 11, when compressed gas is blown from the blow pipe 215, the small hole 212 formed in the peripheral wall portion of the inner cylinder 211 through the space surrounded by the inner cylinder 211 and the outer cylinder 213. Airflow blows out to the inside of the inner cylinder 211. The state of the airflow is shown in a conceptual diagram in FIG. Since the small holes 212 are inclined in the circumferential direction with respect to the radial line of the inner cylinder 211 when viewed in a horizontal plane as shown in FIG. A spiral airflow rotating in the circumferential direction is generated.

  The number, diameter, distribution, and the like of the small holes 212 are preferably obtained in advance by experiments or the like. FIG. 11 shows two examples in the circumferential direction. The direction of the small hole 212 when viewed in the vertical direction is basically the horizontal direction, but since the compressed air blown in is blown out from the upper and lower openings of the inner cylinder 211, the direction of the hole is the horizontal direction. Also, the airflow ejected from the upper small hole 212 is mainly upward, and the airflow ejected from the lower small hole 212 is mainly directed downward. The ventilation member is, for example, a wire mesh, and supports the molded pipe 21, but the airflow can freely pass therethrough. On the other hand, the gas blown out from the pair of small holes 212 formed in the upper part of the inner cylinder 211 is opposed to the airflow flowing upward in the inner cylinder 211, and as a result, the airflow flowing upward. Will be squeezed somewhat toward the center.

  The inner diameter of the inner cylinder 211 is equal to or slightly narrower than the inner diameter of the ampoule. For the ampule having an inner diameter of 6 mm, the inner diameter of the inner cylinder 211 is preferably about 6 mm.

  When a fibrous body is inserted into the molded pipe 21 and compressed air is blown from the blowing tube 215, this type of fibrous body is originally intended to be packed in a “cotton case” kimono or futon, so it is compressed densely. Since the inner fiber body starts to rotate according to the direction of the airflow, it eventually reaches a high speed of 2000 to 3000 rotations per minute, and the fibers that were initially scattered are intertwined to match the shape of the inner cylinder 211 As it rotates, it is formed into a columnar shape as shown in FIG. The air pressure is adjusted to, for example, 0.6 to 0.8 MPa using a pressure increasing valve. Since the time required for molding can be determined in advance by experiments, a timer is set. The required time is, for example, 8 seconds. Such a molding action is due to the fact that a forcing force for bending the fiber acts on the fiber by rotating the small piece P of the natural fiber in a state in which the contour is regulated, and the fibers are entangled in the process. It is considered a thing. Moreover, it is thought that it is contributing to shape | molding in such a pointed shape that a pair of small holes 212 of the upper side mentioned above are opening a little downward.

  As is clear from the above description, the outer cylinder 213 does not directly participate in molding, but serves as a so-called manifold for each stop hole 212. That is, the sealed space formed by the inner cylinder 211, the outer cylinder 213, and the sealing material 214 distributes the compressed air blown from the blow pipe 215 to the plurality of small holes 212.

  FIG. 13 shows that the forming pipe 21 having the cotton plug T formed therein is moved from the forming table 23 to the position of the predetermined ampule 31 of the ampule base 3 by the second conveying means 25 so that the cotton plug T is moved into the ampule 31. It is explanatory drawing which shows the condition inserted in.

  FIG. 13A shows a state in which molding from the fiber body to the cotton plug T is completed in the molding pipe 21 on the molding table 23. FIG. 13B shows a state where the molded pipe 21 that has been molded is picked up by the second conveying means 25. FIG. 13 (c) shows a state in which the second transport means 25 has transported it onto the ampule 31 arranged on the ampule base 3.

  Next, FIG. 14 is an explanatory view showing a process of inserting the cotton plug T inside from the molded pipe 21 arriving at the ampule base 3 into the ampule 31. When the forming pipe 21 reaches the position of the ampule 31 into which the cotton plug T is to be inserted among the plural ampules 31 arranged as shown in FIG. To (b), the second pusher 24 is lowered to push down the cotton plug T in the molded pipe 21 and inserted into the ampule 31.

  The second pusher 24 is preferably pipe-shaped so as to push the shoulder portion of the cotton plug T so as not to crush the pointed portion of the top of the cotton plug T. Note that it is desirable that the second pusher 24 stands by slightly above the fiber body in order to prevent the fiber body from jumping upward during molding.

  The first pusher 22 and the second pusher 24 may be independent mechanisms, but it is convenient to incorporate both into the second transport means 25 and move together with the forming pipe 21. It is. However, since both the first pusher 22 and the second pusher 24 are required to be on the central axis of the molding pipe 21, a relief mechanism is provided so as not to interfere with each other, or the first pusher 22 is provided. However, it is necessary to devise such a structure that can penetrate through the second pusher 24.

  Incidentally, the hardness of the cotton plug T is related to the air flow during culture, but as a practical problem, there is also a problem of the pulling force required when removing the cotton plug T. The pulling force of the normally used cotton plug T from the glass ampoule is about 1 g. Therefore, the pulling force of the cotton plug according to the present invention was measured. FIG. 15 is a graph showing changes in the pulling force depending on the air pressure of the blown air and the operation time in the example. The vertical axis represents the pulling force (g) when the air pressure of the blown air is changed to 0.5 MPa, 0.6 MPa, 0.65 MPa, and 0.7 MPa, and the horizontal axis represents the operation time (seconds). A small pulling force can be realized by increasing the pressure and taking sufficient processing time.

  The automatic forming and inserting device for a fibrous body of the present invention can be realized by compactly arranging the quantitative cutout portion, the forming insertion portion described above, and the conveying means for connecting them. Desirably, if all of the quantitative cutout part, the molding insertion part and the conveying means are accommodated in a single closed cabinet with a door, other than insertion of a natural fiber sheet as a raw material and insertion / extraction of an ampoule as a container The plugging is performed automatically regardless of the manual operation, so that the ampule with the plug can be taken out in a clean state.

  The ampoule table need not be explained in particular, but the number corresponding to the number of cotton plugs that can be produced from the raw cotton sheet brought into the apparatus at least once is arranged on the XY coordinate axis (that is, arranged in a matrix), X For the direction, the second transport means described above is used, and for the movement in the Y direction, which is a change of the row, a row changing means provided on the ampoule table may be used.

  The ampule in the present invention is an elongated glass container as defined at the beginning, and it goes without saying that it includes normal test tubes and the like as shown in the dimension examples. Embodiments of the present invention will be described below with reference to the drawings.

  FIG. 16 is an overall front view of the first embodiment of the automatic stoppering device for culture stoppers according to the present invention, and FIG. 17 is a plan view of the same. In this automatic plugging device, the quantitative cutout section 1 for performing the cutting, molding and insertion into the ampule described above, the molding insertion section 2 and the ampule base 3 are accommodated in the cabinet 4 as well as the cabinet 4 described above. Further includes a raw cotton sheet loading section 41 for inserting the raw cotton sheet into the apparatus, a touch panel 42 for operation, a pilot lamp 43 for informing operation status, and a leg section 44 provided with casters and the like. Although not particularly shown, electrical / electronic devices such as arithmetic / control devices are accommodated in the lower part of the cabinet 4.

  In this embodiment, the quantitative cutout section 1, the molding insertion section 2, and the ampule base 3 are arranged in a straight line from the left to the right in the figure, and are processed from a raw cotton sheet into a cotton plug according to the process and inserted into the ampule. Is done.

  The ampules are arranged in the X and Y directions on the ampule base 3 as shown in FIG. 17, but the second conveying means of the molding insertion portion 2 is determined in the X direction to determine the position of the ampule to be inserted. Alternatively, the ampoule table 3 itself may have a moving function in the X direction. The movement in the Y direction is performed by a column changing means (not shown) of the ampule base 3. In any case, by combining these, a plurality of positions on the ampule base 3 can be selected, so that the plugs can be sequentially inserted into all the ampules arranged on the ampule base 3.

  The cabinet 4 has a width of 1900 mm, a depth of 900 mm, and a height of 1800 mm when viewed from the front.

  In addition, although not shown in particular, this automatic plugging device includes a collection box for collecting chopped residue and chopped raw material cotton, a safety door that opens and closes when raw materials and ampoules are taken in and out, and an ampule base. It is preferable that an ampoule base clamp for fixing the ampoule is provided as necessary so that the ampoule does not wobble. The safety door can be opened and closed manually, but it is desirable to ensure safety so that the open / close state is detected by a sensor and the power is turned off when the door is opened.

  FIG. 18 is a front view showing the molding insertion portion 2 of this embodiment, and FIG. 19 is a side view. The air source 216 that blows compressed air in the molding process includes a filter, a mist separator, a pressure increasing valve, and the like.

  The left side of FIG. 18 is a molding process in which the rod 22 is lowered and the small piece of the fiber body is pushed into the molding pipe. The right side is moved to the position of the ampule 31 and the pusher 24 is lowered, and the cotton plug T falls into the ampule 31. The insertion process is shown.

  FIG. 20 is an overall front view of the second embodiment of the automatic stoppering device for culture stoppers according to the present invention, and FIG. 21 is a side view thereof. In the first embodiment, the internal devices are arranged in the order of processes, whereas in the second embodiment, the feed of the raw cotton sheet in the quantitative cutout section 1 is set in the horizontal direction, and the ampule base 3 is arranged in the lower part thereof. Therefore, although the movement between processes becomes a right-angle direction or there is a descent, the whole is gathered compactly, and the dimensions of the cabinet 4 are 1000 mm in width, 1250 mm in depth, and 1800 mm in height. .

  DESCRIPTION OF SYMBOLS 1 ... Fixed quantity cut-out part, 2 ... Molding insertion part, 3 ... Ampoule base, 4 ... Cabinet, 10 ... Cut-out stand, 11 ... Clamp, 12 ... Feeding roll (feeding means), 13 ... Chuck (cutting unit), 14 ... First DESCRIPTION OF SYMBOLS 1 conveyance means (transverse feed mechanism), 15 ... Weighing device, 21 ... Molding pipe, 22 ... 1st pusher, 23 ... Molding stand (venting member), 24 ... 2nd pusher, 25 ... 2nd conveyance means 31 ... Ampoule (container), 41 ... Raw material cotton sheet insertion part, 42 ... Touch panel, 43 ... Pilot lamp, 44 ... Leg part, 211 ... Inner cylinder, 212 ... Small hole, 213 ... Outer cylinder, 214 ... Sealing material 215 ... Insufflation tube, 216 ... Air source, E ... Bag, P ... Small piece, S ... Textile body, T ... Cotton plug.

Claims (6)

A fiber body cut out from a sheet by a predetermined weight is automatically molded into an elongated cotton plug having a cylindrical shape with a sharp upper end, and the cotton body is automatically molded and inserted into the container.
Place the fiber body cut from the sheet by a predetermined weight on a cylindrical molded pipe placed on a ventilation member that allows exhaust while holding the fiber body,
After pushing this fibrous body into the molded pipe with the first pusher,
By blowing gas in the circumferential direction around the central axis of the molded pipe from a plurality of small holes opened on the inner circumferential surface of the molded pipe, fibers inside the molded pipe The body is rotated by an air current for a predetermined time to form the fibrous body into an elongated shape with a sharp upper end to form a cotton plug, and then the molded pipe is moved relative to the container from the ventilation member,
A method for automatically molding and inserting a fibrous body, wherein the cotton plug is inserted into the container from the molded pipe by a pipe-shaped second pusher having an outer diameter corresponding to the inner diameter of the molded pipe. An automatic molding and insertion device for a fibrous body that automatically molds a fibrous body cut out from a sheet by a predetermined weight into an elongated cotton plug having a cylindrical shape with a sharp upper end and inserts the cotton plug into a container,
A molded pipe into which the predetermined weight of the fibrous body is inserted;
A plurality of small holes provided on the inner peripheral surface of the molded pipe so as to blow out a gas in a circumferential direction around the central axis of the molded pipe and rotate the fiber body by the gas;
A first pusher that pushes the predetermined weight of the fibrous body into the molded pipe;
A ventilation member that is disposed on one end of the molded pipe and allows exhaust while holding the fibrous body in the molded pipe;
Moving means for relatively moving the molded pipe from the ventilation member to the container;
A pipe-like second pusher having an outer diameter commensurate with the inner diameter of the molded pipe, wherein a cotton plug molded in the molded pipe is inserted into the container from the molded pipe. Automatic molding and insertion device for fiber bodies. A quantitative cutout section for cutting out a predetermined weight of a fibrous body from a sheet-like natural fiber;
A molding insertion part for automatically molding the cut fiber body into the shape of a culture stopper and inserting it into a container;
A container stand on which containers for culturing are arranged;
Conveying means for conveying between the quantitative cutout part, the molding insertion part and the container base ,
The molded body insertion portion includes a molded pipe into which the predetermined weight of the fibrous body is inserted, and a gas is blown out in a circumferential direction around the central axis of the molded pipe on the inner peripheral surface of the molded pipe. A plurality of small holes that are opened to rotate the fiber body by gas, a first pusher that pushes the fiber body cut out to the predetermined weight into the molded pipe, and a net shape on which the molded pipe is placed A body, a moving means for lifting the molded pipe from the mesh body and moving it relative to the container, and a pipe-shaped tube for inserting a cotton plug molded in the molded pipe into the container from the molded pipe With a second pusher
Automatic molding insert and wherein the. The quantitative cutout unit is a feeding means for feeding a predetermined amount of sheet-like natural fibers;
A clamp that holds the fed sheet in its state;
A chuck for gripping one end of the fed sheet;
A chuck moving means for moving the chuck away from the sheet and cutting the gripped sheet;
A weighing means for measuring the weight of the cut piece of the sheet;
The position of the chuck for gripping the sheet to be added is determined from the weight of the small piece of the sheet to be added obtained from the difference between the measured value by the weighing means and a predetermined target value and the size of the sheet to be added with respect to this weight. The apparatus for automatically forming and inserting a fiber body according to claim 3, further comprising a calculating means for determining. 5. The automatic molding and insertion device for a fibrous body according to claim 3 or 4, wherein all of the quantitative cutout portion, the molding insertion portion, and the conveying means are accommodated in a single sealed cabinet with a door . 6. A plurality of containers are arranged in a row or a plurality of rows of container stands, and the destination of the transport means has a function of selecting a plurality of positions corresponding to these container positions. The automatic molding insertion apparatus of the fiber body as described.

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