WO2019031481A1 - Container production method and container production device - Google Patents

Abstract

[Problem] To provide a container production method by which occurrence of non-uniformity in the thickness of a body portion can be suppressed, and in which a step that follows separation of a container from a mold can be simplified. [Solution] This container production method comprises a preform preparation step, a mold preparation step, a mold contacting step, a blowing step, and a mold separation step. In the mold preparation step, as a second mold (200), a mold that has a body (210) including a main back-portion forming portion (212a), and has a displacement portion (230) including an auxiliary back-portion forming portion (212b) and being displaceable relatively with respect to the body (210), is prepared such the deformation portion (230) is displaceable with respect to the body (210) between a sinking position and a protruding position. In the blowing step, the displacement portion (230) is displaced from the protruding position to the sinking position, and the gas is supplied into the preform.

Description

Container manufacturing method and container manufacturing apparatus

The present invention relates to a method of manufacturing a container.

Conventionally, a container having a curved neck is known as a container used for a device for supplying a drug solution. Specifically, the container has an accommodation portion including a body portion which rises from the bottom portion and the bottom portion and is formed in a cylindrical shape, a mouth portion formed in a cylindrical shape, and a central axis of the mouth portion in the axial direction of the body portion. And a neck connecting the body and the mouth in such a way as to be inclined relative thereto. Such containers are often manufactured by so-called blow molding.

For example, Patent Document 1 discloses a method of manufacturing a container including a preform preparation step, a mold contact step, a blow step, and a release step.

The preform preparing step is a preform capable of forming a container, and is formed at an opening, an expanding portion connected to the opening and capable of expanding, and a tip of the expanding portion, which is sandwiched by a mold Prepare the possible gate parts, including.

In the mold contacting step, the preforms are positioned in an upper blow mold and a lower blow mold that form a blow cavity which is a space corresponding to the container when contacting each other. Specifically, the upper and lower blow molds are horizontally moved to a position where the neck mold holding the preform is held between the upper and lower blow molds. At this time, the gate portion is held by the upper blow mold and the lower blow mold. Specifically, a gate holding groove having a shape extending along the axial direction of the blow recess that forms the body from the portion forming the bottom of the upper blow mold, and the remaining portion of the bottom of the lower blow mold The gate portion is held by the gate holding groove having a shape extending along the axial direction of the blow concave portion forming the body portion from the portion forming the body. Thereby, the expansion portion of the preform is held in a posture of being lifted from the blow recess which can form the back of the body portion of the lower blow mold.

In the blowing step, gas is supplied into the preform such that a container is formed from the preform by the expansion portion of the preform expanding in the blow cavity.

As described above, in the manufacturing method disclosed in Patent Document 1, the expansion portion of the preform is held in a posture of being lifted from the blow recess capable of forming the back of the body portion of the lower blow mold prior to the blowing step. Therefore, the occurrence of uneven thickness on the body of the container formed by the blowing step (the thickening of the back and the thinning of the abdomen) is suppressed.

Japanese Patent Application Publication No. 2006-62110

In the method of manufacturing a container described in Patent Document 1, a step of removing the gate portion is required after releasing the container after the blowing step.

An object of the present invention is to provide a method of manufacturing a container and a container manufacturing apparatus capable of suppressing the occurrence of uneven thickness on the body and simplifying the process after releasing the container from the mold. is there.

As means for solving the above problems, the present invention includes a bottom portion and a storage portion capable of storing a drug solution, including a cylindrical portion standing up from the bottom portion and having a cylindrical shape, and a cylindrically formed opening And a neck portion formed in a tubular shape and connecting the body portion and the opening portion such that a central axis of the opening portion is inclined with respect to an axial direction of the body portion; The part is formed on the same side as the opening side of the opening with respect to the central axis of the trunk, and on the opposite side of the opening of the opening with respect to the central axis of the opening. A method of manufacturing a container having a back portion, comprising: a preform capable of forming the container, the opening including an opening and an expanding portion connected to the opening and capable of being expanded Preform preparation process to prepare, contact and separation with each other, and contact with each other A first mold and a second mold for forming a container space which is a space corresponding to the container, wherein the first metal mold includes an abdominal portion forming part capable of forming the abdomen and the second metal A mold for preparing one having a first contact surface portion contacting with a mold, and one having a back forming portion capable of forming the back as a second mold and a second contact surface portion contacting the first contact surface portion In the preparing step, the first contact surface portion of the first mold and the second contact surface portion of the second mold are mutually formed such that the container space is formed and the expanded portion of the preform is positioned in the container space. A mold contacting step of bringing into contact, a blowing step of supplying a gas into the preform such that the container is formed from the preform by the expansion portion of the preform expanding in the container space; First contact area and Removing the container from the first mold and the second mold by separating the second contact surface portions from each other; and in the mold preparing step, the second mold includes the second mold; A main body having a main back forming portion including a contact surface portion and forming a part of the back forming portion, and a sub back forming portion forming the back forming portion together with the main back forming portion; And a displacement portion which is relatively displaceable, wherein the displacement portion is a position where the sub back formation portion is flush with the main back formation portion, and the expansion portion is from the main back formation portion Preparing a member which is displaceable with respect to the main body between a position where the sub spine formation portion protrudes from the main spine formation portion so as to be separated, and the displacement portion in the blowing process; From the projecting position to the sinking position And providing the gas into the preform.

In the manufacturing method of the present container, since the displacement portion is at the projecting position before the supply of gas into the preform, the expansion portion of the preform is separated from the main back portion forming portion, and the displacement portion is projected in the blowing step. Since displacement from position to position and supply of gas into the preform are performed, occurrence of uneven thickness on the body of the container formed by the blow process (thickening of the back and thinning of the abdomen) Is suppressed. Furthermore, as in the prior art, the step of removing the gate after mold release from the mold of the container is not necessary.

In this case, in the mold preparation step, as the displacement portion, the central axis of the expansion portion forms the abdomen in a state in which the first contact surface portion and the second contact surface portion are in contact with each other and positioned at the projecting position. It is preferable to use one having a shape that pushes up the inflating portion away from the main back portion forming portion so as to pass through the middle portion between the portion and the back portion forming portion.

In this way, since the difference between the distance from the inflating portion to the abdomen forming portion and the distance from the inflating portion to the back forming portion is reduced, the occurrence of uneven thickness on the trunk can be more reliably suppressed.

Further, in the method for manufacturing a container, in the mold preparation step, a first mold having a bottom forming part connected to the abdomen forming part and forming the bottom is prepared, and the mold contacting is performed In the step, preferably, the first contact surface portion and the second contact surface portion are brought into contact with each other in a state where the displacement portion is positioned at the projecting position.

In this way, the displacement portion pushes the expansion portion away from the main back portion before contact with the first contact surface portion and the second contact surface portion, so that the tip end portion of the expansion portion is sandwiched between the contact surface portions. Being suppressed. Therefore, as compared with the case where the displacement portion is in the projecting position after the contact between the first contact surface portion and the second contact surface portion, the dimension of the expansion portion in the longitudinal direction is increased, that is, the distance between the expansion portion and the bottom portion forming portion It becomes possible to shorten. Therefore, the thickness (strength) of the bottom can be effectively secured.

Further, in the method for manufacturing a container, in the mold preparation step, the first contact surface portion and the second contact surface portion as the first mold and the second mold respectively are the abdomen formation portion and the abdomen formation portion. The maximum bottom width portion and the bottom portion formation portion which are portions where the dimension of the bottom portion formation portion in the width direction which is the direction connecting the back portion formation portion and the direction orthogonal to both the longitudinal direction of the back portion formation portion In the part where the dimension in the width direction is the largest among the parts surrounding the container space in the first mold and the second mold from the upper end of the middle divided surface part including the lower end and the upper end of the middle divided surface It is preferable to prepare one having an upper divided surface portion set along and a lower divided surface portion extending downward from the lower end portion of the middle divided surface portion.

In this way, even if the first mold and the second mold are moved such that the lower divided surface portion of the first contact surface portion and the lower divided surface portion of the second contact surface portion are separated from each other in the mold release step, Interference between each mold and the container is avoided. Therefore, the restriction on the operation of taking out the container in the releasing step is alleviated.

Specifically, in the releasing step, the first mold and the second mold are moved such that the lower divided surface portion of the first contact surface portion and the lower divided surface portion of the second contact surface portion are separated from each other. Is preferred.

In this way, the operation of taking out the container from each mold is simplified.

Further, the present invention includes a bottom portion and a trunk portion which is erected from the bottom portion and is formed in a cylindrical shape and is capable of containing a chemical solution, a cylindrically formed opening portion, and a cylindrical shape. And the neck connecting the barrel and the mouth such that the central axis of the mouth is inclined with respect to the axial direction of the barrel, the barrel being the center of the barrel A container having an abdomen formed on the same side as the opening of the mouth relative to an axis, and a back formed on the opposite side of the opening of the mouth to the central opening of the trunk. A container manufacturing apparatus for manufacturing the first and second molds capable of contacting and separating each other and forming a container space which is a space corresponding to the container when contacting each other A displacement mechanism, and the first mold includes an abdomen formation portion capable of forming the abdomen; A second contact portion contacting with the first contact surface portion, wherein the second mold is a main back portion forming part of a back portion forming portion capable of forming the back portion, and a second contact contacts the first contact surface portion A main body having a surface portion and a holding portion for holding the displacement mechanism, and a displacement portion having a sub-back portion forming the back portion together with the main back portion and capable of relative displacement with respect to the main body; And the displacement mechanism is configured such that the sub-back portion forming position is flush with the main back portion forming portion and a preform capable of forming the container is separated from the main back portion forming portion. There is provided a container manufacturing apparatus, wherein the displacement portion is displaced relative to the main body between a protruding position where the auxiliary spine forming portion protrudes from the main spine forming portion.

In this container manufacturing apparatus, it is possible to manufacture a container in which the occurrence of uneven thickness on the body is suppressed while eliminating the step of cutting off the gate after releasing the container from the mold as in the prior art. Specifically, in a state where the preform is positioned in the container space, before the gas is supplied into the preform, the displacement mechanism holds the displacement portion in the projecting position (the preform is separated from the main spine forming portion) In this state, by displacing the displacement portion from the projecting position to the sunk position and supplying the gas into the preform, generation of uneven thickness on the body of the container formed by the process. (The back is thickened and the abdomen is thin) is suppressed. Furthermore, as in the prior art, the step of removing the gate after mold release from the mold of the container is not necessary.

As described above, according to the present invention, a container manufacturing method and container manufacturing apparatus capable of suppressing the occurrence of uneven thickness on the body and simplifying the process after mold release from the container mold. Can be provided.

It is a front view of the container manufactured with the manufacturing method of the container of one embodiment of the present invention. Figure 2 is a bottom view of the container shown in Figure 1; It is a perspective view of the container manufacturing apparatus used for manufacture of the container shown by FIG. FIG. 4 is a cross-sectional view taken along line IV-IV of FIG. 3; It is a perspective view of the 2nd metallic mold of a container manufacturing device. It is a perspective view of the 1st metallic mold of a container manufacturing device. FIG. 2 is a schematic view showing the steps of a mold contacting process. It is the schematic which shows the mold contact process back. Schematic which shows a blowing process. It is the schematic which shows a mold release process. It is the schematic which shows the modification of the displacement part of a 2nd metal mold | die. It is the schematic which shows the modification of the displacement part of a 2nd metal mold | die.

A method of manufacturing the container 10 according to one embodiment of the present invention will be described with reference to FIGS. First, the container 10 will be described with reference to FIGS. 1 and 2, and then a method of manufacturing the container 10 will be described.

As shown in FIG. 1, the container 10 has a housing portion 20, a mouth 30 and a neck 40. The container 10 can be used for an application device for applying a drug solution such as an analgesic on the skin.

The storage unit 20 can store a drug solution. Specifically, the housing portion 20 has a bottom portion 22 and a body portion 24.

The body 24 stands from the edge of the bottom 22 and is formed in a tubular shape. The body portion 24 includes a portion that decreases in diameter as it is separated from the bottom portion 22. The body 24 has a abdomen 24 a formed on one side of the body 24 (left side in FIGS. 1 and 2) and a back formed on the other side of the body 24 (right side in FIGS. 1 and 2). And 24b. The abdomen 24 a is formed on the same side of the central axis 24 </ b> L of the trunk 24 as the opening 30 described later opens. The back portion 24b is formed on the opposite side of the central axis 24L to the side where the mouth portion 30 opens. Hereinafter, a direction (vertical direction in FIG. 2) orthogonal to both the central axis 24L and a direction (horizontal direction in FIGS. 1 and 2) connecting the abdomen 24a and the back 24b will be referred to as a width direction.

The mouth 30 is formed in a cylindrical shape. An external thread is formed in the opening 30.

The neck portion 40 is formed in a tubular shape. The neck portion 40 connects the body portion 24 and the mouth portion 30 so that the central axis 30L of the mouth portion 30 is inclined with respect to the axial direction of the central axis 24L of the body portion 24. In the present embodiment, the angle between the central axis 30L of the mouth 30 and the central axis 24L of the body 24 is set to 60 degrees.

Next, a method of manufacturing the container 10 described above will be described. In this manufacturing method, the container manufacturing apparatus 1 shown in FIG. 3 is used. The container manufacturing apparatus 1 includes a first mold 100, a second mold 200, and a displacement mechanism 300. In addition, in manufacture of the container 10 by this container manufacturing apparatus 1, the preform 2 (refer FIG.7 and FIG.8) which consists of synthetic resins in advance is prepared. The preform 2 includes an opening 30 and an expandable portion 32 connected to the opening 30 and capable of expanding.

The first mold 100 and the second mold 200 can be in contact with and separated from each other, and when in contact with each other, form a container space S that is a space corresponding to the container 10.

As shown in FIGS. 4 and 6, the first mold 100 includes an abdomen forming portion 112 capable of forming the abdomen 24a, and a bottom portion forming portion 114 connected to the abdomen forming portion 112 and capable of forming the bottom 22. And a first contact surface portion 120 capable of contacting the second mold 200.

The first contact surface portion 120 has a first middle divided surface portion 122, a first upper divided surface portion 124, and a first lower divided surface portion 126.

The first middle divided surface portion 122 maximizes the dimension of the bottom forming portion 114 in the width direction which is the direction connecting the abdomen forming portion 112 and the back forming portion 212 and the direction perpendicular to both the longitudinal direction of the back forming portion. It includes a bottom width maximum portion 114a which is a portion and a lower end portion 114b of the bottom portion forming portion 114. The first middle divided surface portion 122 is formed flat.

The first upper divided surface portion 124 is a portion surrounding the container space S in the first mold 100 and the second mold 200 from the upper end of the first middle divided surface portion 122 to a portion where the dimension in the width direction is the largest. It is set to follow. Specifically, the first upper divided surface portion 124 includes the bottom width maximum portion 114 a and is formed along the longitudinal direction of the back portion forming portion 212 so as to be flat.

The first lower divided surface portion 126 has a shape extending downward from the lower end portion of the first middle divided surface portion 122. In the present embodiment, the first lower divided surface portion 126 extends vertically downward from the lower end portion of the first middle divided surface portion 122 and is formed flat. The first lower divided surface portion 126 is not limited to a shape extending vertically downward from the lower end portion of the first middle divided surface portion 122. In addition, as long as the first lower divided surface portion 126 has a shape extending downward from the lower end portion of the first middle divided surface portion 122, the first lower divided surface portion 126 may be curved to be convex to the second mold 200 side or the opposite side thereof. .

The second mold 200 can contact the back forming portion 212 capable of forming the back 24b, the neck forming portion 214 capable of forming the neck 40, and the first contact surface portion 120, as shown in FIGS. 4 and 5. A second contact surface portion 220 and a holding portion 203 for holding the displacement mechanism 300.

The second contact surface portion 220 has a second middle divided surface portion 222, a second upper divided surface portion 224, and a second lower divided surface portion 226. The second middle divided surface portion 222 is a portion that can be in contact with the first middle divided surface portion 122, and is formed flat. The second upper divided surface portion 224 is a portion that can be in contact with the first upper divided surface portion 124, and is formed flat. The second lower divided surface portion 226 is a portion which can be in contact with the first lower divided surface portion 126, and is formed flat.

The second mold 200 has a main body 210 and a displacement portion 230.

The main body 210 includes a main back portion forming portion 212 a which includes the second contact surface portion 220 and which constitutes a part of the back portion forming portion 212.

The displacement portion 230 has a sub back formation portion 212 b which constitutes the back formation portion 212 together with the main back formation portion 212 a. The surface of the displacement portion 230 constitutes a sub back formation portion 212 b. The displacement portion 230 is displaceable relative to the main body 210. Specifically, the displacement portion 230 is in a position where the sub back formation portion 212b is flush with the main back formation portion 212a (the positions shown in FIGS. 4, 5, 9 and 10), and A projecting position (the position shown in FIGS. 7 and 8), which is a position where the sub back formation portion 212b protrudes from the main back formation portion 212a such that the expansion portion 32 of the reform 2 is separated from the main back formation portion 212a It is displaceable relative to the body 210 between. In the present embodiment, in the displacement portion 230, the central axis 32L (see FIG. 8) of the inflating portion 32 forms the abdomen in the state where the displacement portion 230 is located at the protruding position and the first contact surface portion 120 and the second contact surface portion 220 contact each other. The inflating portion 32 is shaped to be pushed up so as to be separated from the main back portion forming portion 212 a so as to pass through the intermediate portion between the portion 112 and the back portion forming portion 212.

The holding portion 203 is formed in the main body 210 of the second mold 200. Specifically, as shown in FIGS. 3 and 5, the main body 210 includes a first split mold 201 and a second split mold 202, and the holding unit 203 includes the split molds 201 and 202. Are provided at mutually opposing parts.

The displacement mechanism 300 displaces the displacement portion 230 between the retracted position and the projecting position. The displacement mechanism 300 is held by the holding portion 203 of the second mold 200. In the present embodiment, an air cylinder is used as the displacement mechanism 300. Specifically, the displacement mechanism 300 has a plunger 302 connected to the displacement portion 230, and an expansion / contraction portion 304 for expanding / contracting the plunger 302. The displacement mechanism 300 is not limited to the air cylinder as long as the displacement portion 230 can be displaced between the retracted position and the projecting position.

Then, the manufacturing method of the container 10 using the container manufacturing apparatus 1 is demonstrated. This manufacturing method comprises a preform preparation step, a mold preparation step, a mold contact step, a blow step, and a mold release step.

In the preform preparation step, the preform 2 shown in FIGS. 7 and 8 is prepared.

In the mold preparation step, the first mold 100 and the second mold 200 are prepared. In the present embodiment, the container manufacturing apparatus 1 is prepared in this step.

In the mold contacting step, as shown in FIG. 7, after the lip mold 5 holding the opening 30 of the preform 2 is fixed to the first mold 100, a container space S is formed and the container space S is formed. The first contact surface portion 120 of the first mold 100 and the second contact surface portion 220 of the second mold 200 are brought into contact with each other so that the expansion portion 32 of the preform 2 is positioned inside. In the present embodiment, as shown in FIG. 7, the second mold 200 is horizontally oriented so that the second mold 200 approaches the first mold 100 (a direction orthogonal to the second lower divided surface portion 226 To slide). At this time, the displacement portion 230 is held at the projecting position by the displacement mechanism 300. For this reason, after the mold contacting step, as shown in FIG. 8, the expanded portion 32 of the preform 2 is lifted from the main back portion forming portion 212a. More specifically, the inflating portion 32 is separated from the main back portion forming portion 212a so that the central axis 32L of the inflating portion 32 passes through the intermediate portion between the abdominal portion forming portion 112 and the back portion forming portion 212.

In the blowing step, gas (for example, air) is supplied into the preform 2 so that the container 10 is formed from the preform 2 by the expansion portion 32 expanding in the container space S. That is, the container 10 is formed from the preform 2 through the blow process. In the blow process, displacement of the displacement portion 230 from the projecting position to the retracted position (retracting the plunger 302 of the displacement mechanism 300) and supply of gas into the preform 2 are performed. In the present embodiment, the displacement of the displacement portion 230 from the protruding position to the retracted position is performed simultaneously with the supply of the gas into the preform 2. However, the displacement of the displacement portion 230 from the protruding position to the retracted position may be performed before the supply of the gas into the preform 2 or may be performed after the supply of the gas into the preform 2. Good. If the displacement of the displacement portion 230 from the projecting position to the retracted position is performed after the supply of gas into the preform 2, a mark having a shape corresponding to the sub back portion 212b on the back 24b of the container 10 Is more clearly formed.

In the release step, the container 10 is taken out of the first mold 100 and the second mold 200 by separating the first contact surface portion 120 and the second contact surface portion 220 from each other. In the present embodiment, the second mold 200 is slid horizontally (to the right in FIG. 10) with respect to the first mold 100 so that the first lower divided surface portion 126 and the second lower divided surface portion 226 are separated from each other.

As described above, in the method of manufacturing the container 10 of the present embodiment, the displacement portion 230 is held at the protruding position before the supply of the gas into the preform 2, so the expansion portion 32 of the preform 2 is It is separated from the main back portion forming portion 212a, and in the blowing step, displacement of the displacement portion 230 from the projecting position to the sinking position and supply of gas into the preform 2 are performed. The occurrence of uneven thickness on the body 24 of the container 10 (the thickening of the back 24b and the thinning of the abdomen 24a) is suppressed. Furthermore, as in the prior art, the step of removing the gate after mold release from the mold of the container is not necessary.

Further, in the mold contacting step, the first contact surface portion 120 and the second contact surface portion 220 are brought into contact with each other in the state where the displacement portion 230 is positioned at the projecting position, so Interposition between 220 is suppressed. Therefore, the dimension in the longitudinal direction of the expansion portion 32 is increased as compared to the case where the displacement portion 230 is in the projection position after the first contact surface portion 120 and the second contact surface portion 220 contact, that is, the expansion portion 32 and the bottom portion are formed. It is possible to shorten the distance to the unit 114. Therefore, it is possible to effectively secure the thickness (strength) of the bottom 22.

Furthermore, after the mold contacting step, since the inflating portion 32 is separated from the main back portion forming portion 212a so that the central axis 32L of the inflating portion 32 passes through the intermediate portion between the abdomen forming portion 112 and the back portion forming portion 212, Since the difference between the distance from the portion 32 to the abdomen forming portion 112 and the distance from the inflating portion 32 to the back forming portion 212 is reduced, the occurrence of uneven thickness on the trunk portion 24 is more reliably suppressed.

Further, the first contact surface portion 120 and the second contact surface portion 220 respectively include the bottom width maximum portion 114a and the upper width division surface portions 124 and 224 set along the portion where the dimension in the width direction is maximum, and the bottom width There are middle divided surface portions 122 and 222 including the largest portion 114a and the lower end portion 114b of the bottom portion forming portion 114, and lower divided surface portions 126 and 226 extending downward from the lower ends of the middle divided surface portions 122 and 222. Therefore, even if the first mold 100 and the second mold 200 are moved so that the first lower divided surface portion 126 and the second lower divided surface portion 226 are separated from each other in the release step, the respective molds 100 and 200 Interference with the container 10 is avoided. Therefore, the restrictions on the removal operation of the container 10 in the release step are alleviated.

It should be understood that the above-disclosed embodiments disclosed herein are illustrative and non-restrictive in every respect. The scope of the present invention is indicated not by the description of the embodiments described above but by the claims, and further includes all modifications within the meaning and scope equivalent to the claims.

For example, as shown in FIG. 11, the lower end portion of the displacement portion 230 has the upper end portion of the displacement portion 230 as a fulcrum so that the surface of the sub back formation portion 212b contacts the expansion portion 32. It may be configured to rotate.

In addition, as shown in FIG. 12, in the displacement portion 230, a shape in which a part of the displacement portion 230 protrudes to the first mold 100 side (the left side in FIG. 12) than the second lower divided surface portion 226 at the projecting position. It may be In this aspect, the displacement portion 230 is held at the projecting position in the mold contacting step, thereby more reliably suppressing the tip of the expansion portion 32 being pinched between the lower division surfaces 126 and 226 in the step. Ru.

In addition, the displacement portion 230 may be held at the sundown position in the mold contacting step, and may be at the projecting position before supplying the gas into the preform 2 in the blowing step.

Further, in the mold contacting step, both molds 100 and 200 relative to the lip mold 5 so that the lip mold 5 holding the opening 30 of the preform 2 is sandwiched between the first mold 100 and the second mold 200. You may slide so that it may be approached.

DESCRIPTION OF SYMBOLS 1 container manufacturing apparatus 2 preform 10 container 20 housing portion 22 bottom portion 24 body portion 24 a abdomen portion 24 b back portion 30 neck portion 100 first mold 112 abdominal portion forming portion 114 bottom portion forming portion 114 a bottom width maximum portion 120 first contact surface portion 122 First middle division surface portion 124 First upper division surface portion 126 First lower division surface portion 200 Second mold 203 Holding portion 210 Main portion 212 Back portion formation portion 212a Main back portion formation portion 212b Sub back portion formation portion 214 Neck portion formation portion 220 Second contact surface portion 222 Second middle stage divided surface section 224 Second upper stage divided surface section 226 Second lower stage divided surface section 230 Displacement section 300 Displacement mechanism S Container space

Claims (6)

1. A bottom portion and a body portion including a cylindrical portion standing up from the bottom portion and capable of containing a drug solution, a cylindrically formed opening portion, and a cylindrically formed opening portion The neck portion connecting the body portion and the opening portion such that the central axis is inclined with respect to the axial direction of the body portion, the body portion being the mouth relative to the central axis of the body portion A method of manufacturing a container, comprising: an abdomen formed on the same side as the side where the portion opens, and a spine formed on the side opposite to the side where the mouth opens with respect to the central axis of the trunk. A preform preparing step of preparing a preform capable of forming the container, the mouth being connected to the mouth and including an expandable portion capable of expanding; And a container which is a space corresponding to the container when in contact with each other A first mold and a second mold for forming an interval, the first mold having an abdominal portion forming portion capable of forming the abdominal portion and a first contact surface portion in contact with the second mold; A mold preparing step of preparing a second mold having a spine forming portion capable of forming the spine and a second contact surface portion contacting the first contact surface portion; the container space is formed and Contacting the first contact surface of the first mold and the second contact surface of the second mold such that the expanded portion of the preform is located in the container space; and A blowing step of supplying a gas into the preform so that the container is formed from the preform by the expansion portion expanding in the container space, the first contact surface portion and the second contact surface portion Separate Removing the container from the first mold and the second mold, and the mold preparing step includes the second contact surface portion as the second mold and the spine forming portion A main back portion forming a part of the main back portion, a sub back portion forming portion forming the back portion forming portion together with the main back portion forming portion, and a displacement portion relatively displaceable with respect to the main body And the displacement portion is a position where the sub spine formation portion is flush with the main spine formation portion, and the sub spine formation portion is configured such that the inflating portion is separated from the main spine formation portion. What is displaceable with respect to the main body between the projecting position which is a position which protrudes from the main back formation part is prepared, In the blowing process, the displacement part is displaced from the projecting position to the retracted position. And the pref And supplying the gas into the chamber.
2. The method for manufacturing a container according to claim 1, wherein, in the mold preparation step, the expansion is performed in a state in which the first contact surface portion and the second contact surface portion are in contact with each other and positioned at the protruding position as the displacement portion. A manufacturing method of a container using what has a shape which pushes up the said expansion part so that it may estrange from the said main spine formation part so that a central axis of a part may pass through a middle part of the abdomen formation part and the back formation part.
3. The method for manufacturing a container according to claim 1 or 2, wherein in the mold preparation step, a first mold having a bottom forming portion connected to the abdomen forming portion and forming the bottom is prepared as the first mold. A method of manufacturing a container, in the mold contacting step, bringing the first contact surface portion into contact with the second contact surface portion in a state where the displacement portion is positioned at the projecting position.
4. The method for manufacturing a container according to any one of claims 1 to 3, wherein, in the mold preparation step, the first contact surface portion and the second contact surface portion serve as the first mold and the second mold, respectively. A bottom width which is a portion at which the dimension of the bottom forming portion in the width direction which is a direction connecting the abdomen forming portion and the back forming portion and a direction orthogonal to both the longitudinal direction of the back forming portion is maximum. The width direction of the middle divided surface portion including the largest portion and the lower end portion of the bottom portion forming portion, and the portion surrounding the container space in the first mold and the second mold from the upper end portion of the middle divided surface portion A method of manufacturing a container, comprising: an upper divided surface portion set along a portion where the dimension of the part is maximized; and a lower divided surface portion extending downward from a lower end portion of the middle divided surface portion.
5. The method for manufacturing a container according to claim 4, wherein, in the releasing step, the first mold and the first mold and the lower division surface portion of the first contact surface portion are separated from the lower division surface portion of the second contact surface portion. A method of manufacturing a container, wherein the second mold is moved.
6. A bottom portion and a body portion including a cylindrical portion standing up from the bottom portion and capable of containing a drug solution, a cylindrically formed opening portion, and a cylindrically formed opening portion The neck portion connecting the body portion and the opening portion such that the central axis is inclined with respect to the axial direction of the body portion, the body portion being the mouth relative to the central axis of the body portion A container for producing a container having an abdominal part formed on the same side as the part opening and a back part formed on the opposite side of the opening side to the central axis of the trunk A manufacturing apparatus comprising: a first mold and a second mold that can contact and separate from each other and form a container space that is a space corresponding to the container when contacting each other; The first mold is in contact with the second mold; A second contact surface portion contacting the first contact surface portion, a second back surface forming portion which constitutes a part of a back surface forming portion capable of forming the back, and a second contact surface portion contacting the first contact surface portion; And a main body having a holding portion for holding the displacement mechanism, and a sub-back portion forming portion which constitutes the back portion forming portion together with the main back portion forming portion, and has a displacement portion which can be displaced relative to the main body. The displacement mechanism is configured such that the sub-back portion forming portion is flush with the main back portion forming portion, and the preform capable of forming the container is separated from the main back portion forming portion; The container manufacturing apparatus which displaces the said displacement part with respect to the said main body between the protrusion positions which are the positions which the sub back formation part protruded from the said main back formation part.

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