KR101289254B1 - Method for manufacturing double-wall aerosol container, double-wall aerosol container and device for manufacturing double-wall aerosol container - Google Patents

Abstract

By inserting the inner bag, preventing the inner bag from being deformed, generating wrinkles, and generating cracks, there is provided a method for producing a double aerosol container, which does not cause deterioration of the inner bag, has excellent productivity, and is low in production cost.
A metal container having a fuselage and / or a shoulder with a diameter smaller than that of the fuselage, and an inner bag inserted into the metal container, the inner bag having a fuselage and a bead between the metal container and the inner bag; A method for producing a double aerosol container in which a propeller is present, wherein a drawing process is performed on a plurality of drawing molds on an upper portion of a cylindrical can body supported by a can holder, and then a metal container is formed. A method for producing a double aerosol container in which an inner bag is inserted into a metal container by an inner bag insertion exclusive device having an insertion rod that reciprocates at a speed and a predetermined pressing pressure.

Description

TECHNICAL FOR MANUFACTURING DOUBLE-WALL AEROSOL CONTAINER, DOUBLE-WALL AEROSOL CONTAINER AND DEVICE FOR MANUFACTURING DOUBLE-WALL AEROSOL CONTAINER}

The present invention relates to a method for producing a double aerosol container, a double aerosol container and a production apparatus for a double aerosol container. Specifically, when inserting an inner bag into a metal container, it is used for the manufacturing method of the double aerosol container with a small burden on an inner bag, the double aerosol container using the manufacturing method, and the manufacturing method of the double aerosol container. It relates to an apparatus for producing a double aerosol container.

2. Description of the Related Art A double aerosol container is known which consists of a metal container and an inner bag inserted into the metal container, fills the contents into the inner bag, and fills a gap between the metal container and the inner bag in the metal container. Since this double aerosol container can be discharged by separating the contents from the pressurizing agent, it is used for various uses using various contents. Moreover, the material which corrodes a metal container can be used as a content by selecting the material of an inner bag.

As a problem of manufacturing such a double aerosol container, the process of inserting an inner bag in a metal container is mentioned. That is, generally, the inner bag is inserted from the bend of the metal container. When the inner bag is made small in order to simplify the insertion of the inner bag from the bend of the metal container, the filling amount of the contents is limited. On the other hand, in order to increase the filling amount of the contents, when the size of the inner bag is made larger than the opening of the metal container, as shown in FIG. 15 or as in Patent Document 1, the inner bag 100 is folded or deformed to form a metal container ( It must be inserted into 102, which puts a huge load on the inner bag 100. As a result, a crack occurs in an inner bag, a deformation | transformation of an inner bag, or the quality of an inner bag falls. Moreover, such a process is performed by hand conventionally, and insertion work was inefficient. Moreover, as shown in FIG. 16, the method which a person pushes and pulls the insertion rod 101, and inserts the inner bag 100 into the metal container 102 is also known. At this time, it is also known to insert while drawing the outer diameter of an inner bag using the funnel-shaped drawing die 103 (patent document 2).

On the other hand, instead of inserting the inner bag from the opening of the metal container, the inner bag is inserted into the bottomed cylindrical can before forming the metal container, and then, the opening of the can is drawn to shape the metal container to form a double aerosol. The method of manufacturing a container is also known (patent document 3).

Japanese Patent Publication No. 2003-170977 Japanese Patent Publication No. 2005-289478 Japanese Patent No. 3879049

However, in FIG. 15, FIG. 16, as mentioned above, the quality of an inner bag becomes a problem. In addition, when the inner bag is inserted into the metal container by manually pushing and pulling the insertion rod as shown in FIG. 16, the insertion speed, the inserting force, and the insertion method vary depending on the operator, and depending on the operator, torn off the bottom of the inner bag, There have been various problems of inserting the inner bag into the metal container while being crushed or inserting the inner bag into the metal container while the inner bag is displaced. In addition, the type in which the inner bag is hanged on the metal container as shown in Figs. 15 and 16 has a small insertion distance of the inner bag, so that the load on the inner bag is small, but as shown in Patent Literature 1, the inner bag is mounted on the bottom of the metal container. The problem is that the inner bag has a larger insertion distance and a greater burden on the inner bag.

The present invention provides a method for producing a double aerosol container which prevents damage to the inner bag such as deformation of the inner bag, wrinkles and cracks when the inner bag is inserted, and which has excellent productivity and is low in manufacturing cost, and a method for manufacturing the same. An object of the present invention is to provide a double aerosol container and a double aerosol container manufacturing apparatus.

A first aspect of the method for producing a double aerosol container of the present invention is a metal container having a body portion and a bent portion and / or a shoulder portion reduced in diameter than the body portion, and inserted into the metal container, and the body portion and the portion are A method of manufacturing a double aerosol container comprising an inner bag provided and having a propeller between the metal container and the inner bag, the plurality of drawing molds on top of a bottomed cylindrical can body supported by a can holder. The inner bag is inserted into the metal container by an inner bag inserting-only machine having an inserting rod reciprocating at a predetermined speed and a predetermined pressing force after the drawing processing is performed to form a metal container. have.

A method of manufacturing such a double aerosol container, comprising: an inner bag insertion exclusive device including an insertion rod and a drive device having a cam mechanism for reciprocating the insertion rod at a predetermined speed and a predetermined pressing pressure. It is preferable to insert the inner bag in the inside. On the other hand, the inner bag insertion exclusive machine may be provided with an insertion rod and a drive device having a pneumatic or hydraulic cylinder for reciprocating the insertion rod at a predetermined speed and a predetermined pressing pressure, and the insertion rod and the insertion rod. May be provided with an electric actuator for reciprocating at a predetermined speed and a predetermined pressing pressure. The driving apparatus includes an insertion rod and a crank mechanism for reciprocating the insertion rod at a predetermined speed and a predetermined pressing pressure. It may be one.

In addition, the plurality of upper portions of the bottomed cylindrical can body supported by the can holder are supported by the can holder holding the bottom of the cylindrical can body having a bottom, and a necking machine having a plurality of drawing molds. You may shape | mold by performing drawing process with the drawing die of.

A second aspect of the method for producing a double aerosol container of the present invention is a metal container having a body portion and a bent portion and / or shoulder portion reduced in diameter than the body portion, and inserted into the metal container, the body portion and the portion A method of manufacturing a double aerosol container comprising an inner bag provided and having a propeller between the metal container and the inner bag, the plurality of drawing molds on top of a bottomed cylindrical can body supported by a can holder. After the drawing process was carried out to form the metal container, the taper portion was formed coaxially with the metal container, and the diameter of the inner surface thereof was reduced toward the metal container side. The inner bag is pressed into the metal container and inserted into the metal container through a cylindrical inner bag guide device having an inner diameter of substantially the same as the inner diameter of the spherical portion of the metal container. It is characterized by.

In particular, when the inner bag is mounted in a metal container, a method of producing a double aerosol container configured such that the tip end of the inner bag protrudes from the cross-sectional opening of the bent part of the metal container, and in the initial stage of insertion of the inner bag, The cross section opening of the metal container is brought into substantial contact with the side surface of the inner bag guide device so that the central axis of the cross section opening and the inner bag guide device are substantially the same. It is preferable to separate the cross-section opening from the side surface of the inner bag guide device.

In the manufacturing method of such a double aerosol container, the outer diameter (D1) of the fuselage part of the metal container of the double aerosol container is 25 mm ≤ D1 ≤ 30 mm, the bend outer diameter (S) of the metal container is 18 mm ≤ S ≤ 22 mm, It is preferable that the outer diameter d1 of the fuselage | body part of the said inner bag is 20 mm <= d1 <= 23 mm, and the angle ((gamma)) with respect to the central axis of the inner surface of the said inner bag induction apparatus is 20 degree <= (gamma) <= 30 degree. At this time, the relationship between the outer diameter d1 of the trunk portion of the inner bag and the spherical outer diameter S of the metal container is d1?

A method for producing a double aerosol container using such an inner bag induction device, wherein an inner surface of the inner bag induction device is composed of a tube part and a taper part in order from upstream, and the outer diameter D1 of the body part of the metal container is 50 mm ≤. D1, the spherical outer diameter S of the metal container is 25 mm≥S, the outer diameter d1 of the fuselage portion of the inner bag is 35 mm≤d1, and the angle σ of the tapered portion of the inner bag induction apparatus is 20 degrees≤σ It is preferable that it is ≤ 30 degrees. At this time, the relationship between the outer diameter d1 of the trunk portion of the inner bag and the spherical outer diameter S of the metal container is d1?

Moreover, it is preferable that the taper part of an inner bag guidance apparatus is comprised by the 1st taper part with a large taper angle in order, and the 2nd taper part whose taper angle is smaller than a 1st taper part. In particular, the outer shell diameter D1 of the metal container is 35 mm ≤ D1 ≤ 53 mm, the outer shell diameter S of the metal container is 24 mm ≤ S ≤ 28 mm, and the outer shell body diameter d1 of the inner bag is 32.5 mm ≤. d1 ≦ 41 mm, the angle α with respect to the central axis of the first tapered portion is 45 degrees ≦ α ≦ 55 degrees, and the angle β with respect to the central axis of the second tapered portion is 20 degrees ≦ β ≦ 30 degrees. desirable. At this time, the relationship between the outer diameter d1 of the trunk portion of the inner bag and the spherical outer diameter S of the metal container is d1?

A third aspect of the method for producing a double aerosol container of the present invention includes a metal container having a body portion and a bent portion and / or a shoulder portion reduced in diameter than the body portion, and inserted into the metal container, the body portion and the portion being A method of manufacturing a double aerosol container comprising an inner bag provided and having a propeller between the metal container and the inner bag, the plurality of drawing molds on top of a bottomed cylindrical can body supported by a can holder. After the drawing process is performed to form the metal container, the inner bag is evacuated by vacuum to be inserted into the metal container while the inner bag is depressed by vacuum until the inner bag is pressed into the metal container and inserted therein. It is characterized by.

In the manufacturing method of the double aerosol container of the present invention, before inserting the inner bag into the metal container, the roll may be brought into contact with the outer circumference of the bent portion, and a part of the bent portion may be drawn deeper, and after the inner bag is inserted into the metal container, You may make a roll contact | abut the outer periphery of a bend and draw a part of a bend deeper.

As a method of fixing the valve of the double aerosol container of the present invention, after inserting the inner bag into the metal container, the valve is inserted into the metal container, and the valve is fixed to the metal container side to fix the valve, or the metal After inserting an inner bag into a container, a valve is inserted into a metal container, the upper cover is covered on the valve and the bend of a metal container, and the tip of an upper cover is crimped and fixed to a part of a metal container. . The double aerosol container of the present invention is characterized in that a valve is fixed to the one produced by the method for producing a double aerosol container of the present invention. Two double aerosol containers may be combined to form a double double aerosol container.

The apparatus for producing a double aerosol of the present invention includes a plurality of metal molds for retaining a bottomed cylindrical container and approaching and spaced apart from the rotary disk intermittently and the rotary disk and necking the opening of the metal container. A necking machine consisting of a reciprocating board having at least a necking processing station having an inner side, an inner bag insertion unit for inserting an inner bag into the necked metal container, and a metal container necked with the necking machine to an inner bag insertion unit It is characterized by including a conveying conveyor.

As such a manufacturing apparatus, it is preferable that the said conveyor conveys a metal container to an inner bag insertion exclusive machine at least via the washing machine sequentially.

In addition, the inner bag insertion exclusive machine is provided coaxially with the metal container, and a tapered portion whose inner diameter is reduced toward the metal container side is formed, and the metal container whose inner diameter is substantially the same as the inner diameter of the spherical part of the metal container. It is preferable to have a cylindrical inner bag guide device having an open end on the side.

Since the first aspect of the method for producing a double aerosol container of the present invention inserts the inner bag into an inner bag insertion exclusive device having an insert rod which reciprocates at a constant speed and pushes at a constant pressure in the molded metal container. The quality of the inner bag inserted in the produced double aerosol container is high and stable.

In the case where the insertion rod of the inner bag insertion-only machine is reciprocated by a drive device provided with a cam mechanism, the structure is simple, so that the stable inner bag can be inserted for a long time and is efficient. In addition, when the insertion rod of the inner bag insertion exclusive machine is reciprocated by a drive device having a pneumatic or hydraulic cylinder, when the reciprocating motion is performed by an electric actuator, or when the reciprocating motion is performed by a drive device having a crank mechanism, the inner bag is inserted. Can be performed stably for a long time.

In addition, the plurality of upper portions of the bottomed cylindrical can body supported by the can holder are supported by the can holder holding the bottomed cylindrical can body with the metal container and a plurality of drawing molds. In the case of carrying out molding by drawing with a drawing die, the metal container can be molded efficiently.

The 2nd aspect of the manufacturing method of the double aerosol container of this invention is provided coaxially with the shape | molded metal container, the taper part by which the diameter of the inner surface was reduced toward the metal container side was formed, and the inner diameter metal container was formed. Since the inner bag is pressed in the metal container direction and inserted into the metal container through a cylindrical inner bag guide device having an opening end on the side of the metal container substantially the same as the inner diameter of the spherical portion, the inner bag is reliably inserted in the metal container. It can also be inserted smoothly.

When the inner bag is mounted in a metal container using such an inner bag guide device, a method of manufacturing a double aerosol container configured such that the tip end of the inner bag protrudes from the cross-sectional opening of the bent part of the metal container, wherein the initial insertion of the inner bag is performed. In the case where the end face opening of the metal container is substantially in contact with the side surface of the inner bag guide device so that the cross section opening of the bend of the metal container and the central axis of the inner bag guide device are substantially the same, It can be inserted smoothly into a metal container. In addition, at the end of the insertion of the inner bag, when the end face opening of the metal container is spaced apart from the side surface of the inner bag guide device, the inner bag guide device does not prevent the protrusion from the end face opening of the metal container at the tip end of the inner bag. .

A method of manufacturing an aerosol container using such an inner bag induction apparatus, wherein the outer diameter D1 of the fuselage portion of the metal container is 25 mm ≦ D1 ≦ 30 mm, and the outer diameter S of the metal container is 18 mm ≦ S ≦ 22 mm, When the outer diameter d1 of the fuselage part of the inner bag is 20 mm ≤ d1 ≤ 23 mm, and the angle γ with respect to the central axis of the inner surface of the inner bag induction device is 20 degrees ≤ γ ≤ 30 degrees, the inner bag is crushed, or the inner bag Fold marks may be formed in the inner bag, or the inner bag may be inserted without plastic deformation.

Moreover, the inner surface of the said inner bag induction | guide apparatus is comprised by the cylinder part and the taper part in order from an upstream, the outer-body diameter D1 of the fuselage | body part of the said metal container is 50 mm <= D1, and the outer diameter S of the metal container is 25 mm≥ S, when the outer diameter d1 of the fuselage part of the inner bag is 35 mm ≤ d1, and the angle σ of the taper part of the inner bag guide device is 20 degrees ≤ σ ≤ 30 degrees, even if it is a relatively large metal container and inner bag It can be inserted without crushing the bag or creating a fold in the inner bag.

When the taper portion of the inner bag guide device is composed of a first taper portion having a larger taper angle in order from above and a second taper portion having a taper angle smaller than the first taper portion, the inner bag is contracted to some extent in the first taper portion. Afterwards, since the deformation degree is relaxed in the second tapered portion, even when the inner bag is largely deformed and inserted into the metal container, the inner bag is crushed, folds are formed in the inner bag, or the inner bag is not plastically deformed. It can be inserted smoothly. In particular, the outer shell diameter D1 of the metal container is 35 mm ≤ D1 ≤ 53 mm, the outer shell diameter S of the metal container is 24 mm ≤ S ≤ 28 mm, and the outer shell body diameter d1 of the inner bag is 32.5 mm ≤. d1 ≦ 41 mm, the angle α with respect to the central axis of the first tapered portion is 45 degrees ≦ α ≦ 55 degrees, and the angle β with respect to the central axis of the second tapered portion is 20 degrees ≦ β ≦ 30 degrees It is possible to produce a good double aerosol container.

The third aspect of the method for producing a double aerosol container of the present invention is a metal container while depressing the air in the inner bag with a vacuum and deforming the inner bag until the inner bag is pressed and inserted into the molded metal container direction. Since it is inserted in the inner bag, the force from the outside of the inner bag can be reduced, and the load on the inner bag can be weakened. Here, `` to deform the inner bag by vacuuming the air in the inner bag '' does not only deform the inner bag with the vacuum of the air in the inner bag, but also serves as an auxiliary role of an external force that provides physical deformation to the inner bag to the last. I am doing it. This is particularly desirable for double aerosol containers of the type which deeply inserts the inner bag to the bottom of the barrel.

Since the double aerosol container of this invention is manufactured by the manufacturing method of the double aerosol container of this invention, the quality of an inner bag is high.

The double aerosol device of the present invention includes a necking machine for molding a metal container, an inner bag insertion dedicated device for inserting an inner bag with an insertion rod reciprocating at a constant speed, and the necking machine. Since the conveyor which transfers the necked metal container to an inner bag insertion exclusive machine is provided, an inner bag can be inserted stably and it is efficient. It is more efficient when the conveyor conveys the metal container necked by the necking machine sequentially to the inner bag insertion exclusive device via at least a washing machine. The inner bag insertion exclusive machine is provided coaxially with the metal container, and has a tapered portion whose inner diameter is reduced toward the metal container side, and whose inner diameter is substantially the same as the inner diameter of the sphere of the metal container. In the case of having a cylindrical inner bag guide device having an open end of the inner bag, the inner bag can be reliably and smoothly inserted into the metal container.

BRIEF DESCRIPTION OF THE DRAWINGS It is a side view which shows one Embodiment of the manufacturing apparatus of the double aerosol container of this invention.
2 is a plan view of the necking machine of FIG.
3 is a cross-sectional view taken along the line XX of FIG. 2.
4 is a perspective view illustrating the inner bag insertion exclusive machine of FIG. 1.
FIG. 5 is a partial cross-sectional side view illustrating the inner bag insertion exclusive machine of FIG. 1. FIG.
FIG. 6 is a side cross-sectional view showing an inner bag induction device of the inner bag inserting device of FIG. 4. FIG.
7 is a side cross-sectional view showing an outline immediately before inserting an inner bag into a metal container.
8 is a side cross-sectional view showing an outline immediately after inserting an inner bag into a metal container.
9 is a partial side cross-sectional view showing another embodiment of the inner bag insert-only machine.
10 is a partial cross-sectional side view showing still another embodiment of the inner bag insert-only machine.
11A and 11B are side cross-sectional views showing another embodiment of the inner bag induction device of the inner bag insertion exclusive device of FIG. 4, respectively.
12A and 12B show one embodiment of a double aerosol container according to the present invention, respectively, and are side cross-sectional views showing before and after fixing the valve, and FIG. 12C is a side cross-sectional view showing the inner bag thereof.
13A and 13B are side cross-sectional views showing another embodiment of the double aerosol container according to the present invention, before and after fixing the valve, respectively.
14 is a partial cross-sectional side view showing still another embodiment of the double aerosol container of the present invention.
15 is a schematic view showing a conventional method for producing a double aerosol container.
It is a schematic diagram which shows the manufacturing method of the conventional double aerosol container.

The manufacturing apparatus 10 of the double aerosol container of FIG. 1 is the necking machine 11 which shape | molds a bottom-shaped cylindrical container into a metal container, and the inner bag insertion exclusive machine 12 which inserts an inner bag into the shaped metal container. ) And a conveyor 13 which sequentially transfers the metal container formed by the necking machine to the inner bag insertion exclusive machine. In addition, the code | symbol 14 is a washing | cleaning machine which wash | cleans a metal container, and is conventionally well-known. In addition, the molded inner bag 30 is sequentially transferred to the inner bag insertion exclusive machine 12 (not shown).

As shown in Fig. 2, the necking machine 11 holds a bottomed cylindrical container or the like (all the containers deformed by a mold from the bottomed cylindrical container to a metal container) and rotates intermittently. With a reciprocating plate 22 with a tool for processing the first half 21 and the cylindrical container (the container until immediately before it becomes a metal container) which has approached and spaced horizontally with respect to the rotating disk, and has a bottom. Is done. Here, the reciprocating plate 22 may approach and space | separate perpendicularly with respect to the floor. As shown in FIG. 3, the rotating disk 21 is provided with the some container holder 23 which hold | maintains a bottomed cylindrical container etc. perpendicularly at equal intervals. The reciprocating board 22 consists of the necking processing station 24 which has several drawing molds 24a-24e which draw the opening part of a metal container. Moreover, you may install another processing station in the reciprocating board 22. As shown in FIG. For example, the roll processing station etc. which provided the roll for drawing a part deeper in a bend outer periphery are mentioned. The reciprocating plate 22 is supported by the crank shaft 25 to approach and space in the horizontal direction.

This necking machine 11 operates as follows. That is, the tubular container A1 having a bottom in the container holder 23a of the turntable 21 is connected to the supply line 26a (conveyor 13 of FIG. 1, or the conveyor 13 of FIG. 1). Is transferred from. Next, the rotary disk 21 rotates and the bottomed cylindrical container A2 is transferred to the next container holder 23b. On the other hand, the container A1 held in the container holder 23a rotates and is conveyed to the position of the necking processing station 24. In synchronization with it, the reciprocating board 22 moves and spaces apart, and the bent part of the container A1 is necked by the metal mold | die 24a. Moreover, when the rotating disk 21 rotates, the cylindrical container A3 with a bottom is transferred to the container holder 23c, and it synchronizes and the reciprocating board 22 moves and moves apart, and the container A2 is moved. The necking process is performed by the metal mold | die 24a, and the container A1 is necked by the metal mold | die 24b. By repeating this movement, the necking process of a several times is performed to container A1, and it becomes the metal container 20 of the predetermined shape provided with a trunk | drum, a shoulder part, and a bend part. The molded metal container 20 is unloaded from the unloading line 26b (connected to the conveyor 13 of FIG. 1 or the conveyor 13 of FIG. 1) provided in contact with the turntable 21. As shown in FIG.

As shown in FIGS. 4 and 5, the inner bag insertion exclusive machine 12 includes a container holding part 31 for holding the metal container 20, an inner bag supporting part 32 for supporting the supplied inner bag 30, It consists of an inner bag insertion part 33 which inserts the inner bag 30 into the metal container 20, and the inner bag guide apparatus 34 arrange | positioned between the container holding part 31 and the inner bag support part 32. As shown in FIG.

The container holding part 31 consists of the star wheel 36 in which the some recessed part 36a was formed in the outer periphery which rotates intermittently, and the stopper 37 provided in the edge part of the star wheel 36. As shown in FIG. The metal container 20 conveyed by the conveyor 13 in the recessed part 36a of this star wheel 36 is supplied sequentially in synchronization with rotation of the star wheel 36.

The inner bag support part 32 is provided in the upper surface with the recessed part 32a to which the inner bag 30 is supplied, and is comprised so that it may supply sequentially in synchronization with rotation of the star wheel 36. FIG. The concave portion 32a is parallel to one of the positions at which the concave portion 36a of the rotating star wheel 36 stops (reference 36b) (left end in this embodiment), and the metal container 20 and the inner bag 30 ) Is installed coaxially.

The inner bag insertion section 33 is composed of a drive device having an insertion rod 41 which moves horizontally, and a cam mechanism 42 which holds the base and drives the insertion rod 41. The cam mechanism 42 is composed of a cylindrical rotating shaft (drum cam) 44 which is rotated by a power such as a motor, and an operating shaft 45 which reciprocates in the axial direction by rotating the rotating shaft. ) And the insertion rod 41 are connected. The groove 46 is formed on the surface of the rotating shaft 44 so as to reciprocate around both ends by one rotation. The working shaft 45 is provided with a mover 47 for moving the groove 46 of the rotating shaft 44 with the rotation of the rotating shaft 44. As a result, when the rotating shaft 44 rotates once, the mover 47 moves horizontally on the rotating shaft 44, and the operating shaft 45 also moves horizontally. That is, by rotating the rotating shaft 44 at a constant speed, the insertion rod 41 connected to the working shaft 45 reciprocates in the horizontal direction at a predetermined speed and a predetermined maximum pressing force. As a drive device which reciprocates the insertion rod 41, you may use the actuator which converts rotation of a motor etc. to front-back direction besides a cam mechanism, as mentioned later. Also in this case, the insertion rod 41 can be pushed at a predetermined speed and a predetermined maximum pressing force. In addition, you may push the inner bag 30 blowing at predetermined pressure.

The inner bag guide device 34 has a cylindrical shape as shown in FIG. 6, and a tapered portion 51 is formed in which the inner surface thereof is reduced toward the metal container 20 side (the container holding part 31 side). In addition, the inner diameter S1 of the open end on the metal container 20 side is substantially the same as the inner diameter of the spherical portion S of the metal container. The inner bag guide device 34 is fixed by the holder 34a. Moreover, the taper part 51 has the 1st taper part 52 with a large taper angle (alpha) with respect to an axis from the inner bag support part 32 side (right side of FIG. 5), and the taper angle (beta) are made into It is comprised by the 2nd taper part 53 smaller than 1 taper part. Reference numeral S2 denotes an inner diameter (metallic container side end portion of the first tapered portion 52) of the boundary portion between the first tapered portion and the second tapered portion. The inner diameter of the edge part of the inner side of the inner bag support part 32 side of the 1st taper part 52 is comprised so that it may become substantially the same as the trunk part of the inner bag 30, or it will become larger than the trunk part. The center hole of the inner bag guide device 34 is disposed coaxially with the axis of the metal container 20. That is, the metal container 20 (the axis of the recess 36a of the star wheel 36), the inner bag guide device 34, the inner bag 30 (the recess 32a of the inner bag support part 32). Axis) is substantially coaxially arranged. In particular, the inner bag induction apparatus 34 is coaxially more accurately coaxially with the center hole of the inner container and the inner bag induction apparatus 34 at the initial stage of insertion of the inner bag 30 as shown in FIG. The upper end of the bent portion of the metal container and the side end of the inner bag guide device 34 abut (or nearly abut). On the other hand, as shown in FIG. 8, the insertion end of the inner bag 30 has the upper end of the bend of the metal container and the inner bag guide device so that the bent tip of the inner bag 30 may protrude slightly from the metal container 20. 34) is disposed to form a gap (Z) of 5 ~ 15mm. Here, the initial insertion of the inner bag 30 refers to the time until a part of the inner bag 30 enters the metal container 20, and the insertion end of the inner bag 30 indicates that the body portion of the inner bag 30 is the metal container ( 20) and before the bottom part of the inner bag 30 contacts the bottom part of a metal container.

The first taper portion made of synthetic resin and having a diameter d1 (32.5 to 41 mm) of the inner bag having a thickness of 0.2 to 0.8 mm, particularly 0.4 to 0.6 mm, which is reduced in diameter is 45 degrees ≤ α ≤ 55 degrees, in particular 48 degrees ≤ α. ≤52 degrees is preferred. Moreover, as a 2nd taper part which diameter-reduces an inner bag to spherical part S (24-28 mm), 20 degree | times (beta) <30 degree, especially 22 degree | times (beta) ≤28 degree is preferable. By designing in this way, the inner bag 30 of synthetic resin can be inserted into the metal container 20 without causing plastic deformation.

According to the inner bag insertion apparatus 27 comprised in this way, as shown in FIG. 5, the metal container 20, the inner bag guide apparatus 34, and the inner bag 30 are arrange | positioned on a straight line, and are arrange | positioned on an axis | shaft. The inner bag 30 is inserted into the metal container 20 by moving the inserted insertion rod 41 in the front-back direction. In this case, as shown in FIGS. 7 and 8, the inner bag 30 is largely deformed in the first tapered portion 52, and thereafter, the inner bag 30 is deformed small in the second tapered portion 53, thereby providing the elastic force of the inner bag 30. It can be inserted into the metal container 20 without losing it. In addition, in the initial stage of insertion of the inner bag 30, the metal container 20 is moved toward the inner bag guide device 34 so that the upper end of the bent portion of the metal container 20 and the downstream end of the inner bag guide device 34 abut. Move it. For example, the metal container 20 is pushed by the stopper 37 or the star wheel 36 itself is moved in the axial direction. However, the inner bag guide device 34 may be moved. Then, at the end of insertion of the inner bag (or immediately before or after the inner bag 30 is inserted), the metal container 20 is moved to the bottom side of the metal container so that a gap Z is formed from the inner bag induction device 34. Let's do it. Then, after the inner bag 30 is inserted, the new inner bag 30 is configured to be supplied to the recess 32a of the inner bag support 32 in synchronization with pulling the insertion rod 41. For example, what is necessary is just to supply from the line extended in the direction perpendicular | vertical to the insertion rod 41 (not shown). Since the inner bag 30 is inserted into the metal container 20 in this manner, cracks do not occur in the inner bag 30 or the inner bag 30 is not crushed in the metal container 20.

In the final step of inserting the inner bag 30 into the metal container 20, the air in the inner bag 30 may be vacuum. As a result, the inner bag 30 can be reduced in diameter by not only the external force by the inner bag guide device 34 but also the suction force of the entire inner bag from the inside. The load on the inner bag 30 due to the abutment of the fuselage portion of the metal container 20 and the fuselage portion of the c) can be reduced. The final step here refers to a step in which a part of the body portion of the inner bag 30 and the bent portion of the metal container 20 abut. Therefore, even if the inner bag 30 is a type which inserts to the bottom part of the metal container 20, the inner bag 30 can be inserted easily.

9 and 10 show other forms of the inner bag insertion exclusive machines 12a and b that can be used in the production apparatus 10 for the double aerosol container of the present invention. These are different from the drive device which reciprocates the inner bag insertion exclusive machine 12 of FIG.

The inner bag insertion portion 33a of the inner bag insertion exclusive machine 12a of FIG. 9 is composed of a drive device having an insertion rod 41 and a pneumatic or hydraulic cylinder 48. In the cylinder 48, movement within the cylinder is provided freely in the axial direction, and a piston 48a connected to the insertion rod 41 is disposed. By supplying and discharging air or a fluid (oil) to the compressor 49a and the switching valve 49b which are provided outside the cylinder in this cylinder, the piston 48a is moved back and forth within the cylinder, and the insertion rod 41 is predetermined. Can be reciprocated at a predetermined pressure.

The inner bag insertion portion 33b of the inner bag insertion exclusive machine 12b of FIG. 10 is composed of a drive device having an insertion rod 41 and a crank mechanism 54. The crank mechanism 54 includes a motor 54a, a reduction gear 54b connected to the motor 54a, a connecting rod 54c whose base is connected to the reduction gear, and a piston connected to the tip of the connecting rod. The insertion rod 41 is connected to the piston 54d with 54d and a support cylinder 54e for freely moving the piston in the axial direction. By rotating the motor 54a, the piston 54d is moved back and forth, and the insertion rod 41 can be reciprocated at a predetermined speed and a predetermined pressing pressure.

Moreover, you may use the electric actuator provided with the cylinder as a drive apparatus of the insertion rod 41. FIG. For example, you may use the electric actuator provided with the rotating screw and nut which convert the rotational force of a motor into the front-back direction force in a cylinder. In addition, by inserting the base of the insertion rod 41 into a conductive element (belt, cable, wire, chain, etc.) wound in an annular shape to a direction changing member (pulley, sprocket, etc.), the insertion element is rotated by a motor or the like, thereby inserting the insertion rod. May be reciprocated at a predetermined speed and a predetermined pressing pressure.

11A and 11B show another embodiment of the inner bag induction apparatus that can be used for the production apparatus 10 for the double aerosol container of the present invention.

In the inner bag guide device 55 of FIG. 11A, the tapered portion 55a on the inner surface has a constant angle γ. The other configuration is substantially the same as that of the inner bag guidance device 34. This is not suitable when the taper portion 55a has a constant angle γ, so that the inner bag 30 is greatly deformed. For example, when the diameter d1 (20-23 mm) of an inner bag made of synthetic resin and having a thickness of 0.2 to 0.8 mm, particularly 0.4 to 0.6 mm, is reduced in diameter by the bend S of the metal container (18 to 22 mm). The taper portion can be inserted into the metal container 20 without causing plastic deformation in the inner bag 30 made of synthetic resin by making it 20 degrees ≤ γ ≤ 30 degrees, especially 22 degrees ≤ γ ≤ 28 degrees.

The inner bag induction apparatus 57 of FIG. 11B has a cylindrical portion 57a and a tapered portion 57b, and a stepped portion 57c formed between the cylindrical portion 57a and the tapered portion 57b. However, the stepped portion 57c may not be provided. By providing the cylindrical portion 57a, the inner bag that has reached the inner bag guide device 57 can be supported. Such an inner bag induction device 57 is particularly preferable for metal containers and large inner bags. Specifically, the outer shell portion D1 of the metal container is 50 mm ≤ D1, the outer ring diameter S of the metal container is 25 mm ≥ S, and the outer shell portion d1 of the inner bag is 35 mm ≤ d1. It is preferable. In this case, the angle? Of the tapered portion is preferably 20 degrees ≤ σ ≤ 30 degrees, particularly 22 degrees ≤ σ ≤ 28 degrees.

Such a cylindrical portion 57a may be provided in an opening on the insertion rod side of the inner bag guide device 34 in FIG. 6.

12A and 12B are views showing examples of the inner-fitting double aerosol container manufactured by the method for producing a double aerosol container according to the present invention.

The inner-fitting double aerosol container 1A in FIGS. 12A and 12B consists of a metal container 20 and an inner bag 30 inserted into the metal container.

The metal container 20 is a narrowing portion formed by bringing a roll into contact with the outer periphery of the lower end of the shoulder portion 20a, the spherical portion 20b, and the spherical portion 20b formed by the necking process, and drawing a portion of the spherical portion more deeply ( 20c). As shown in FIG. 12C, the inner bag 30 has a body portion 30a and a spherical portion 30b having substantially the same diameter, and is made of synthetic resin having a bellows 30c formed on the upper end of the body portion 30a. will be. However, the bellows 30c may not be formed. The thickness is 0.2-0.8mm, especially 0.4-0.6mm. As a synthetic resin, it is manufactured using materials, such as polyolefin resin, such as polyethylene, a low density polyethylene, a high density polyethylene, or a polypropylene, polyamide resin, such as nylon, or polyvinyl chloride resin, and consists of a single layer or a multilayer. When using as a multilayer, it is preferable to use a vinyl acetate alcohol copolymer for an intermediate | middle layer or any one layer.

Moreover, when the trunk | drum and spherical part of an inner bag are substantially the same in this way, the outer diameter of the spherical part of a metal container and the inner diameter of the trunk | drum and spherical part of an inner bag are comprised so that it may become substantially the same.

The inner bag 30 is inserted into the metal container 20 by the method mentioned above. At this time, the bent tip 30d of the inner bag 30 protrudes 3 to 8 mm, particularly 5 to 6 mm, from the metal container 20 (see FIG. 12A). Before inserting an inner bag, you may make a roll contact | abut the outer periphery of a bend, and draw a part of a bend deeper, and may form the narrow part 20c. Thereafter, after the contents are filled in the inner bag 30, the valve 61 is inserted from the bend 20b of the metal container. As a result, the inner bag 30 is pressed, and the bellows 30c contracts. The top surface of the valve 61 is covered with a plate-shaped packing 62 and a top plate 63. The valve 61 is mounted on the narrowed portion 20c of the metal container 20, so that the tip of the bent portion of the metal container ( 20d) is bent inward on the top plate 63 of the valve 61, and caulked. At the same time as the valve 61 is fixed, the propeller is filled, and the double aerosol container 1A is manufactured.

13A and 13B show an example of an outer-fitted double aerosol container manufactured by the method for producing a double aerosol container according to the present invention. The outer-fitted double aerosol container 1B of FIGS. 13A and 13B is made of a metal container 20 and an inner bag 30, and similarly to the necking process, as in the inner-fitted double aerosol container of FIGS. 12A and 12B. After forming the shoulder part 20a and the part 20b, making a roll contact the outer periphery of the middle part of the part 20b, drawing a part of the part more deeply, and forming the narrow part 20c, An inner bag 30 having a 30a and a bent portion 30b is inserted. The inner bag 30 is a body portion 30a and a sphere 30b having substantially the same diameter. Although the inner bag 30 does not have a bellows in this figure, the embodiment provided with a bellows may be sufficient as it. Also in this case, the bent tip 30d of the inner bag 30 protrudes 3 to 8 mm, in particular 5 to 6 mm, from the metal container 20. As the inner bag 30, thickness is 0.2-0.8 mm, especially 0.4-0.6 mm. As a synthetic resin, it is manufactured using materials, such as polyolefin resin, such as polyethylene, a low density polyethylene, a high density polyethylene, or a polypropylene, polyamide resin, such as nylon, or polyvinyl chloride resin, and consists of a single layer or a multilayer. When using as a multilayer, it is preferable to use a vinyl acetate alcohol copolymer for an intermediate | middle layer or any one layer. After the contents are filled in the inner bag 30, the valve 71 is inserted from the bent portion 20c of the metal container and mounted on the narrowing portion 20c. A packing 72 is placed on the top surface of the valve 71, and the upper lid 73 is covered thereon, and the tip portion 73a of the upper lid 73 is cocked from the outside to the narrow portion 20c of the metal container. The valve 71 is fixed. The double aerosol container 1B which is filled with the propeller at the same time as the valve 71 is fixed is manufactured.

In the inner bag of FIGS. 12 and 11, the body part and the spherical part have substantially the same diameter. For example, as in the inner bag 30 of FIG. 6, the spherical part may be smaller in diameter than the body part.

FIG. 14 is a double type double aerosol container 75 connecting the double aerosol container 1A of FIG. The double aerosol container 1A is connected by the cover member 76. The stem 61a of the valve 61 of two double aerosol containers is respectively fitted in the communication hole 77 of the cover member 76, and is connected to the push button 78. As shown in FIG. By pressing the push button 78, the contents filled in the double aerosol container 1A are discharged in a mixed state. As the contents of such a double type double aerosol container 75, for example, one hair dye and two hair dyes that constitute the hair dye are filled in the respective double aerosol containers 1A.

A1-A3... Vessel
1A ... Inner-fitting double aerosol container
1B... Outer fitted double aerosol container
10... Apparatus for the production of double aerosol containers
11 ... Necking machine
12, 12a, 12b... Inner bag insertion machine
13 ... Conveyor
14 ... Washer
20... Metal containers
20a ... Shoulder
20c... Narrowing
20d... Tip
21 ... Pivot
22... Shuttle
23 ... Container holder
23a-c. Container holder
24 ... Necking processing station
24a to 24b. mold
25... Crankshaft
26a... Supply line
26b... Export line
30 ... Inner bag
30 ... Body part
30b ... Bend
30c... Bellows
30d... Bend Tip
31 ... Container holder
32 ... Inner bag support
32a... Concave portion
33, 33a, 33b... Inner bag insert
34 ... Inner bag induction device
34a... Maintenance
36 ... Star wheel
36a... Concave portion
36b... One of the positions
37 ... stopper
41 ... Insert rod
42 ... Cam mechanism
44 ... Rotating shaft (drum cam)
45 ... Working shaft
46 ... Groove
47 ... Mover
48 ... Hydraulic cylinder
48a... piston
49a... Compressor
49b... Switching valve
51 ... Taper portion
52 ... 1st taper part
53 ... 2nd taper part
54 ... Crank mechanism
54a... motor
54b... Reduction gear
54c... Crankshaft
54d... piston
54e... Support tube
55 ... Inner bag induction device
55a... Taper portion
57... Inner bag induction device
57a... Cylindrical portion
57b... Taper portion
57c... Stepped portion
61... valve
61a... Stem
62 ... packing
63 ... Top plate
71 ... valve
72 ... packing
73 ... Top cover
73a... Tip
75 ... Double type double aerosol container
76 ... The cover member
77... Communication hole
78... Push button

Claims (22)

A metal container having at least one of a fuselage and a shoulder and a portion reduced in diameter than the fuselage, and an inner bag inserted into the metal container, the inner bag having a fuselage and a bent, the metal container and an inner bag As a manufacturing method of the double aerosol container in which a propeller is present,
After the drawing process is performed on the upper part of the cylindrical can body supported by the can holder with a plurality of drawing molds to form a metal container,
An insertion rod and a drive device for reciprocating the insertion rod at a predetermined speed and a predetermined pressing pressure, the drive device being at least one of a cam mechanism, a pneumatic or hydraulic cylinder, an electric actuator, and a crank mechanism; A method for producing a double aerosol container, characterized by inserting an inner bag into a metal container by an insertion-only machine. delete delete delete delete The method of claim 1,
The drawing process of the upper part of the bottomed cylindrical can body supported by the said can holder was carried out with the said several drawing mold by the can holder holding a bottomed cylindrical can body, and the necking machine which has a some drawing mold. A method of producing a double aerosol container, which is carried out to mold the metal container. A metal container having at least one of a fuselage and a shoulder and a portion reduced in diameter than the fuselage, and an inner bag inserted into the metal container, the inner bag having a fuselage and a bent, the metal container and an inner bag As a manufacturing method of the double aerosol container in which a propeller is present,
After the drawing process is performed on the upper part of the cylindrical can body supported by the can holder with a plurality of drawing molds to form a metal container,
It is provided coaxially with the said metal container, The taper part which the diameter of the inner surface is reduced toward the metal container side is formed, Moreover, the inner diameter of the opening end of the metal container side is substantially the same as the inner diameter of the spherical part of a metal container. Through the inner bag guide device of the shape, the inner bag is pressed in the metal container direction and inserted into the metal container,
An insertion rod and a drive device for reciprocating the insertion rod at a predetermined speed and a predetermined pressing pressure, the drive device being at least one of a cam mechanism, a pneumatic or hydraulic cylinder, an electric actuator, and a crank mechanism; A method for producing a double aerosol container, characterized by inserting an inner bag into a metal container by an insertion-only machine. The method of claim 7, wherein
When the inner bag is mounted in a metal container, the method of producing a double aerosol container configured such that the tip end of the inner bag protrudes from the cross-sectional opening of the bent part of the metal container,
In the initial stage of inserting the inner bag, the cross-section opening of the bent portion of the metal container is brought into substantial contact with the side surface of the inner bag inducing device so that the cross-section opening of the spherical portion of the metal container and the central axis of the inner bag induction device are substantially the same.
In the insertion end of an inner bag, the manufacturing method of the double aerosol container characterized by separating the cross section opening part of the spherical part of a metal container from the side surface of an inner bag guide apparatus. The method of claim 7, wherein
The outer diameter (D1) of the fuselage portion of the metal container is 25mm≤D1≤30mm,
Bend outer diameter (S) of the metal container is 18mm≤S≤22mm,
The outer diameter d1 of the fuselage part of the inner bag is 20 mm ≤ d1 ≤ 23 mm,
An angle? Of the tapered portion of the inner bag induction apparatus is 20 degrees??? 30 degrees. The method of claim 7, wherein
The inner surface of the inner bag guide device is composed of a cylinder portion and a tapered portion in order from upstream,
The outer diameter (D1) of the fuselage portion of the metal container is 50mm≤D1,
Bend outer diameter (S) of the metal container is 25mm≥S,
The outer diameter d1 of the fuselage part of the inner bag is 35 mm ≤ d1,
The angle? Of the tapered portion of the inner bag induction apparatus is 20 degrees ≤ σ ≤ 30 degrees. The method of claim 7, wherein
A method for producing a double aerosol container, characterized in that the tapered portion of the inner bag guide device is composed of a first tapered portion having a large taper angle in order from an upstream, and a second tapered portion having a tapered angle smaller than the first tapered portion. The method of claim 11,
The outer diameter (D1) of the fuselage portion of the metal container is 35mm≤D1≤53mm,
Bend outer diameter (S) of the metal container is 24mm≤S≤28mm,
The diameter of the boundary portion S2 of the first tapered portion and the second tapered portion is 40 mm ≤ S2 ≤ 43 mm,
The outer diameter d1 of the fuselage part of the inner bag is 32.5 mm ≤ d1 ≤ 41 mm,
The angle α of the first tapered portion is 45 degrees ≦ α ≦ 55 degrees,
A method of manufacturing a double aerosol container, wherein the angle β of the second tapered portion is 20 degrees ≤ β ≤ 30 degrees. A metal container having at least one of a fuselage portion and a bent portion and a shoulder portion reduced in diameter than the fuselage portion,
It is inserted into the metal container and consists of an inner bag provided with a fuselage part and a bent part,
A method for producing a double aerosol container in which propeller is present between the metal container and the inner bag,
After the drawing process is performed on the upper part of the cylindrical can body supported by the can holder with a plurality of drawing molds to form a metal container,
Until the inner bag is pressed into the metal container and inserted therein, the air in the inner bag is evacuated and inserted into the metal container while deforming the inner bag,
An insertion rod and a drive device for reciprocating the insertion rod at a predetermined speed and a predetermined pressing pressure, the drive device being at least one of a cam mechanism, a pneumatic or hydraulic cylinder, an electric actuator, and a crank mechanism; A method for producing a double aerosol container, characterized by inserting an inner bag into a metal container by an insertion-only machine. The method according to any one of claims 1 and 6 to 13,
After performing the said drawing process, a roll is made to contact the outer periphery of a bend, and a part of a bend is drawn deeper, and the metal container is shape | molded, The manufacturing method of the double aerosol container characterized by the above-mentioned. The method according to any one of claims 1 and 6 to 13,
And inserting the inner bag into the metal container, making the roll abut on the outer circumference of the metal container, and drawing a part of the bent portion more deeply. The method according to any one of claims 1 and 6 to 13,
And inserting the valve into the metal container, and caulking the valve against the metal container side to fix the valve. The method according to any one of claims 1 and 6 to 13,
After inserting the inner bag into the metal container, a valve is inserted into the metal container, and the upper cover is placed on the valve and the bent portion of the metal container, and the tip of the upper cover is fixed to a part of the metal container to fix it. Method for producing a double aerosol container. delete A double-type double aerosol container, wherein two double aerosol containers manufactured by the method for producing a double aerosol container according to any one of claims 1 and 6 to 13 are combined. A reciprocating plate having at least a necking station which holds a bottomed cylindrical container and intermittently rotates, and a necking processing station having a plurality of molds approaching and spaced apart from the turntable and necking openings of the metal container. Necking machine,
An inner bag insertion exclusive device for inserting the inner bag into the necked metal container;
A conveyor for conveying the metal container necked by the necking machine to an inner bag insert-only machine;
The inner bag insertion exclusive machine includes an insertion rod and a driving device for reciprocating the insertion rod at a predetermined speed and a predetermined pressing pressure, wherein the driving device includes a cam mechanism, a pneumatic or hydraulic cylinder, an electric actuator, and a crank mechanism. It is at least one, The manufacturing apparatus of the double aerosol container characterized by the above-mentioned. 21. The method of claim 20,
The conveyor is a device for producing a double aerosol container, characterized in that for conveying the metal container necked by the necking machine sequentially to the inner bag inserting device, at least via the washing machine. 21. The method of claim 20,
The inner bag insertion exclusive machine is provided coaxially with the metal container, and has a tapered portion whose inner diameter is reduced toward the metal container side, and whose inner diameter is substantially the same as the inner diameter of the sphere of the metal container. An apparatus for producing a double aerosol container, characterized by having a cylindrical inner bag guide device having an open end of the cylinder.

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