JPH11321986A - Capping jig and method for tubular container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a capping jig for capping surely and all at once many tubular. containers standing in a line, and a capping method for tubular containers using the jig. SOLUTION: This jig comprises a cap body position controlling jib 10 made of an elastic material, is roughly in a flat panel shape, and is provided with a vertical through hole 12 for holding a cap body, and a flexible flat panel 21 on one face of which a projection 22 rising downwardly is provided at a position corresponding each hole of the cap body position controlling jig 10. The distance B from one axis center of the projection 22 to another is the same as the distance A from the center of one hole to that of another. The projection 22 comprises a cap body pressing and inserting jig 20 in a size insertional in the corresponding hole 12 of the cap body position controlling jig 10.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a plugging jig and a plugging method used for simultaneously plugging plugs into a tubular container such as a vacuum blood collection tube.

[0002]

2. Description of the Related Art When manufacturing a vacuum blood collection tube in which a plug is fitted into an open tube opening of a tubular container having one end opened and the other end closed, the tube of the tubular container is reduced under reduced pressure. A method of fitting a stopper (for example, a rubber stopper, a polyethylene cap, or the like) into the mouth (hereinafter, referred to as plugging) is employed. In the case of performing such tapping, since it is inefficient to tap one tubular container at a time, a method of tapping a large number of tubes at once is adopted.

A conventional tapping method is shown in FIG.
A large number of tubular containers 1 are placed upright and aligned by, for example, being inserted into a rack 3, and each of the tubular containers 1 is lightly loaded with a plug 2 to be plugged. In this method, a load is applied vertically by a smooth press plate 4 and the plugs are simultaneously opened. However, in this method, since the plug is plugged in a state where the plug is not fixed at the time of plugging, for example, as in the case of a plug having a shape as shown in FIG. If the axis of the plug 2 and the axis of the tubular container 1 are liable to be largely displaced in a state of being lightly placed on the container, the plug is simultaneously loaded with a vertical load, as shown in FIG. In addition, the rate of occurrence of defective plugging such as the plug being obliquely plugged in the tubular container was high.

Japanese Unexamined Patent Publication (Kokai) No. 6-1395 discloses a method for fitting a cap to a large number of tubular containers at once, as shown in FIGS. 8, 9 and 19 of the publication. Fix the cap to the opened intermediate, and place the cap of the cap right above the mouth of the tubular container,
There is disclosed a method in which a smooth scotch board is placed on the upper surface of an intermediate body, and then pressed with a press to plug. However, since the tapping is performed with a smooth sashimi board at the time of tapping, if the horizontality of the tubular container, the sashimi board, and the rack holding the tubular container is not reliably maintained, all the tubular containers are set at the time of tapping. The force may not be applied evenly, resulting in poor tapping.

[0005]

SUMMARY OF THE INVENTION An object of the present invention is to provide a tapping jig used for tapping a plug simultaneously and reliably in a large number of tubular containers arranged upright and aligned. An object of the present invention is to provide a method for popping a tubular container using the jig.

[0006]

The jig for tapping a tubular container and the method for tapping a tubular container according to the present invention are particularly effective when a vacuum blood collection tube is used as the tubular container and a rubber stopper is used as the stopper. .

The jig for tapping a tubular container according to the present invention will be described below. The jig for plugging a tubular container according to the present invention is a jig used for simultaneously plugging plugs into a large number of tubular containers aligned upright, and has (a) elasticity. A stopper body position control jig made of a material, having a substantially flat plate shape, and having holes for supporting the stoppers provided at positions corresponding to the aligned tubular containers so as to penetrate vertically. (B) on one side of a flexible flat plate, a convex body is erected downward at a position corresponding to each hole of the plug body position control jig, and the distance between the axes of the convex bodies is The distance is made equal to the center-to-center distance of each hole, and the convex body is sized to be inserted into the corresponding hole of the plug position control jig, and the shape of the tip of the convex body is a plug body. The convex body has a shape substantially conforming to the shape of the upper surface of the convex body, and the convex body is supported by a corresponding hole of the stopper position control jig. A plug having such strength that it can be brought into contact with the upper surface of a plug body, and a force directed toward the plug body is applied to the convex body, thereby pressing the plug body downward and plugging it into a tubular container. And a jig for body press-fitting.

The stopper body position control jig is made of a material having elasticity. Specifically, for example, a rubber-like material such as rubber or silicon rubber; urethane rubber, polyurethane,
A sponge-like material such as styrene foam may be used.

The stopper position control jig has a substantially flat plate shape.
A hole for supporting the plug is provided penetrating vertically. The above-mentioned hole is a hole capable of supporting the plug so that the plug can be penetrated by a vertically upward force, and the diameter of the hole is preferably smaller by 0 to 0.2 mm than the outer diameter of the plug. When the diameter of the hole is larger than the outer diameter of the plug, the plug cannot be supported so as to be fixed by the hole, and when too small, the plug cannot be inserted. The position of the hole is a position corresponding to each of the aligned tubular containers, and the distance between the centers of the holes is preferably equal to the distance between the axes of the tubular containers.

The thickness of the stopper position control jig is preferably about 80 to 100% of the height of the stopper. When the thickness is less than 80% of the height of the plug, the plug is not fixed and supported in the above-mentioned hole, so that it becomes easy to wobble. For example, when a stopper having a height of 30 mm is fixedly supported, the thickness of the stopper position control jig is preferably 24 to 30 mm.

The thickness of the flexible flat plate constituting the plug body press-fitting jig is not particularly limited as long as it has flexibility and can fix the convex body. .
1 mm or more is preferable.

The height of the convex body constituting the plug body press-fitting jig is not particularly limited as long as it is high enough to withstand the pressure during plugging. The shape of the distal end of the convex body is substantially compatible with the shape of the upper surface of the plug. That is, the shape of the top surface of the plug is, for example, if the longitudinal section is smooth and the transverse section is circular, the tip section of the convex body is also smooth in the longitudinal section and the transverse section is substantially circular. If the upper surface of the plug has a hemispherical concave, the tip of the convex has a hemispherical convex.

The material of the flexible flat plate constituting the plug body press-fitting jig includes, for example, plastics such as polyvinyl chloride, polyethylene and fluororesin; rubber; metal and the like. It is used in such a thickness that it has flexibility. The material of the convex body forming the plug body press-fitting jig is not limited as long as the material can withstand the load at the time of tapping. For example, plastics such as acrylic resin, polyethylene terephthalate, and polyvinyl chloride; aluminum; , Iron, stainless steel and the like.

Next, a method for plugging a tubular container according to the present invention will be described. In the method for tapping a tubular container of the present invention, a step of fitting a plug into each hole of the above-described plug position control jig and supporting the plug in each hole, the plug being supported in each hole. Placing the stopper position control jig on the upright aligned tubular container such that the respective axes of the tubular container to be plugged and the stopper are substantially coincident with each other; The above-described plug body press-fitting jig is placed on the plug body position control jig, and the center of the hole of the corresponding plug body position-control jig and the axis of the convex body of the plug body press-fitting jig almost coincide. Then, from the opposite side of the surface of the flat body of the plug body press-fitting jig where the convex body is erected, apply a force toward the convex body side with respect to the flat plate,
Inserting the convex body into the hole, pressing the plug body downward, and capping the tubular container.

In the above process, in order to arrange the tubular containers upright, there is a method in which the tubular containers are housed in a rack provided with insertion holes at a fixed axial distance.

[0016]

When the tubular container is plugged by the plugging method of the present invention using the tubular container tapping jig of the present invention, the convex body of the plug body press-fitting jig becomes independent of each plug body. And stopper. Since the flat plate of the plug body press-fitting jig has flexibility, the convex body is securely plugged in accordance with the plug body, so that all the tubular containers are plugged without any defect.

[0017]

DESCRIPTION OF THE PREFERRED EMBODIMENTS A jig for plugging a tubular container according to the present invention will be described with reference to the drawings. FIG. 1 is a perspective view showing an example of a tapping jig according to the present invention, wherein (a) shows a plug body press-in jig, and (b) shows a plug body position control jig. FIG. 2 is a schematic perspective view showing a state in which the tubular containers 1 to be plugged using the plugging jig of the present invention are aligned upright in the rack 3.

The tapping jig of the present invention comprises a plug position control jig 10 and a plug press-fitting jig 20. The stopper body position control jig 10 is provided with a large number of circular holes 12, 12,... The holes 12 are provided at positions corresponding to the aligned tubular containers 1, 1,... In this case, the distance A between the centers of the holes 12, 12,... Is preferably equal to the distance C between the axes of the tubular containers 1, 1,. The diameter of the hole 12 is such that when the plug to be plugged is inserted into the hole 12, the plug can be supported to such an extent that the plug can penetrate the hole 12 by a force from vertically above. I have.

The plug body press-fitting jig 20 is provided on one side of a flexible flat plate 21 with the holes 12,
At the position corresponding to 12..., A convex body 2 composed of a cylindrical body
Are set upright. Each convex body 2
The distance B between the axes of 2, 22,...
Is equal to the center distance A. The convex body 22
The size is such that it can be inserted into the corresponding hole 12 of the plug body position control jig 10, and the shape of the distal end portion 23 of the convex body 22 is substantially compatible with the shape of the upper surface portion of the plug body. The convex body 22 makes the convex body 22 come into contact with the upper surface of the plug supported by the corresponding hole 12 of the plug position control jig 10, and the convex body 22 exerts a force toward the plug. And has such a strength that the plug can be pressed downward and plugged into the tubular container 1.

Next, a method for plugging a tubular container using the above-described plugging jig will be described. FIG. 3 is a schematic perspective view showing the vertical positional relationship of the rack 3 on which the plug press-fitting jig 20, the plug body position control jig 10 and the tubular container 1 to be plugged are aligned at the time of plugging. is there. FIG. 4 is a schematic front view of a main part for describing a step of plugging the tubular container using the above plugging jig.

According to the method for plugging a tubular container of the present invention, the plugs 2, 2...
Are inserted into the respective holes 12, 2,.
.., And the plug position control jig 10 in which the plugs 2, 2,... Are supported in the holes 12, 12,. 3 and the tubular container 1 to be plugged is placed on the tubular container 1 which is aligned upright.
1 and the plugs 2, 2... Are placed so that their corresponding axes are substantially coincident with each other (FIG. 4B). Are connected to the centers of the holes 12, 12,... Of the corresponding plug body position control jigs 10 and the convex bodies 22, 22... Of the plug body press-fitting jig 20. A step (FIG. 4 (c)) is performed in which the axes are substantially aligned with each other. Then, from the surface opposite to the surface on which the convex body 22 of the flat plate 21 of the plug body pressing jig 20 is erected. And the flat plate 2 using a smooth press platen 30.
1 is applied to the convex body 22 side.
Are inserted into the holes 12, 12,... And the plugs 2, 2,.
(FIG. 4D).

[0022]

Embodiment 1 As shown in FIG. 6, a tubular container 1 is a container made of polyethylene terephthalate, the inner diameter H of which is 12.7 mm, and the outer periphery 4 of the opening of the container. Those having engagement protrusions 1a with the plug at 90 ° intervals were used. As shown in FIG. 6, as the plug 2, in the plastic frame member 2a, the upper part has a substantially truncated cone shape and the lower part has a columnar shape with a smaller outer diameter, and both are integrated. A rubber stopper 2b of a shape is housed, and the upper surface is covered by a lid 2c. A female screw-shaped engaging recess 2d is used. The size of the plug 2 is the outer diameter D of the upper surface portion.
Is 15 mm, the outer diameter E of the lower surface is 16 mm, and the height F is 18
mm, and the outer diameter G of the cylindrical portion of the rubber stopper is 13 mm.

Using the tapping jig of the present invention, the above-mentioned plug 2 was simultaneously plugged into the above-mentioned tubular container 1. The plugging jig includes a plug body position control jig 10 shown in FIG. 1 (b) (however, the total number of convex portions is different) and a plug body press-fitting jig shown in FIG. 20 (however, the total number of holes is different).

The stopper position control jig 10 is made of urethane rubber, has a square shape with a side I of 210 mm and a thickness of 15 mm.
A hole 12 having a circular cross section with a diameter of 16 mm is vertically
A total of 100 pieces are provided so as to penetrate up and down 10 pieces in a horizontal direction. The distance A between the centers of the holes 12, 12 is 19.5 m.
m.

The plug body press-fitting jig 20 is made of polyvinyl chloride, and is formed on one surface of a flat plate 21 having a side J of 210 mm and a thickness of 1 mm.
At the positions corresponding to 2, 12,..., There are a total of 100 convex bodies 22, 22.
The pieces are erected downward. Each convex body 2
The distance B between the axes of 2, 22,... Was 19.5 mm.

The tubular container 1 is provided with a rack 3 shown in FIG.
(However, the total number of insertion holes is different) and aligned upright. The rack 3 is made of polypropylene, has a square having a side K of 210 mm, a height L of 50 mm, and is provided with a hollow cylindrical recess having a diameter of 13 mm as an insertion hole. Things. The tubular containers 1, 1... Arranged vertically upright in the insertion holes of the rack 3 had a center-to-center distance C of 19.5 mm.

Using the plugging jig and the rack in which the tubular containers are aligned, the stoppers 2 were simultaneously stoppered in 100 tubular containers 1 in the process shown in FIG. As a plugging machine having a smooth press plate, a vacuum plugging machine manufactured by Kyowa Vacuum Engineering Co., Ltd. was used. The plugging pressure was 60 kg / cm ² and 412 m.
It was stoppered under mHg. The same operation was repeated 50 times by exchanging the tubular container 1 and the plug 2 and observing the product after stoppering. Among the 5000 tubular containers used for the stoppering test,
The number of defective stoppers was seven.

(Comparative Example 1) On each of 100 pieces of the same tubular containers 1 as in Example 1 which were housed in the rack 3 and arranged upright as in Example 1, Similar plugs were placed one by one. In this state, plugging was performed at the same time under the same plugging machine and plugging conditions as in Example 1. The same operation was repeated 50 times while replacing the tubular container 1 and the plug 2 and observing the product after stoppering. Of the 5000 tubular containers used for the stoppering test, 470 defective stoppers were found. Was.

[0029]

The structure of the jig for tapping a tubular container according to the present invention is as described above. By using the jig for tapping, a plug can be plugged into a large number of tubular containers which are aligned upright. The body all at once,
And it can be plugged reliably. The configuration of the method for plugging a tubular container of the present invention is as described above, and by using this method, the plugs are simultaneously and reliably plugged into a number of tubular containers that are aligned upright. be able to.

[Brief description of the drawings]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view showing an example of a tapping jig of the present invention, wherein (a) shows a plug body press-in jig, and (b) shows a plug body position control jig.

FIG. 2 is a schematic perspective view showing a state in which tubular containers to be plugged using the plugging jig of the present invention are arranged upright in a rack.

FIG. 3 is a schematic perspective view showing a vertical positional relationship of a rack in which a plug body press-fitting jig, a plug body position control jig, and a tubular container to be plugged are aligned when plugging.

FIG. 4 is a schematic front view of a main part for describing a step of plugging a tubular container using the plugging jig of the present invention.

FIG. 5 is a perspective view for explaining a conventional tapping method.

FIG. 6A is a cross-sectional view showing an example of a plug and a tubular container.
(B) is a cross-sectional view showing a state in which the plug is obliquely plugged into the tubular container.

DESCRIPTION OF SYMBOLS 1 Tubular container 1a Engagement projection 2 Plug 2a Frame 2b Rubber stopper 2c Cover 2d Engagement recess 3 Rack 4 Press board 10 Plug position control jig 11 Flat plate 12 hole 20 Jig 21 Flat plate 22 Convex body 23 Tip 30 Press platen A Distance between centers of holes B Distance between axes of convex body C Distance between axes of tubular container

Claims (2)

[Claims] 1. A jig used for simultaneously plugging plugs into a large number of tubular containers arranged upright and aligned,
(A) It is made of an elastic material, has a substantially flat plate shape, and has holes for supporting the plugs, which are vertically penetrated at positions corresponding to the aligned tubular containers. A plug body position control jig and (b) a convex body is provided on one side of a flexible flat plate at a position corresponding to each hole of the plug body position control jig so as to face downward. The distance between the axes of the body is equal to the distance between the centers of the holes, and the protrusion has a size that can be inserted into the corresponding hole of the stopper position control jig. The shape of the portion is substantially compatible with the shape of the upper surface portion of the plug, and the convex body has the convex body supported by a corresponding hole of the plug position control jig. Abut against the upper surface of the convex body, apply a force toward the plug body to the convex body, and press the plug body downward to be able to be plugged into a tubular container. A plugging jig for a tubular container, comprising a plug body press-fitting jig having strength. 2. A step of fitting a plug into each hole of the plug position control jig according to claim 1, and supporting the plug in each hole, the position of the plug in which the plug is supported in each hole. Placing the control jig on the upright-aligned tubular containers such that the respective axes of the tubular container to be plugged and the stopper are substantially coincident with each other; The plug body press-fitting jig according to claim 1 is placed on the control jig, and the center of the hole of each corresponding plug body position control jig substantially coincides with the axis of the convex body of the plug body press-fit jig. Then, a force is applied to the flat plate of the plug body press-fitting jig from the side opposite to the surface on which the convex body is erected, toward the convex body side to the flat plate, and the convex body is formed. A method for populating a tubular container, comprising a step of inserting the plug into the hole, pressing the plug downward, and plugging the tubular container.