JP2010168115A - Method and system for manufacturing resin-made container, and container for beverage - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To manufacture a container capable of displaying a mark in a predetermined direction even when the mark is placed in a random direction when longitudinally displaying it in a displaying device. <P>SOLUTION: The container 20 includes a first recess 12a in its bottom part 21. Further, a film is suitable for an outer circumferential surface of the container 20. A first identification mark 23a for identification from other commodity such as the commodity name, and the trademark name is printed on the film. The first recess 12a can be formed simultaneously when forming the container 20 by the blow molding in the container forming process. In a film fitting step, the container 20 and the film are positioned so that the first recess 12a and the first identification mark 23a are in the predetermined positional relationship. Thereafter, the film is wound around the container 20, and the film is heated to be contracted. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a resin container manufacturing method, a resin container manufacturing system, and a beverage container.

For example, in convenience stores, containers filled with beverages such as plastic bottles are placed on the display device in a vertical position and sold. And such a display apparatus is arrange | positioned in the state inclined, for example so that a container might move ahead of a display case with dead weight of the container itself. When one container on the near side (front row) is extracted, the subsequent container moves to the near side by its own weight.
Here, a plastic flat plate, for example, is provided at a place where the container of the display device is placed because of the good sliding property of the container. In recent years, display devices in which a large number of rotatable rollers are arranged are on the market (for example, see Patent Document 1). In addition, the container is generally refilled from the rear side of the display device, but the container can be loaded from the front side, and the container moved to the back side is moved to the front side again and displayed. A display device has also been proposed (see, for example, Patent Document 2). That is, a display device has been proposed in which a container thrown in from the front side makes a U-turn and returns. Further, as a container, a can in which inner concave portions and vertical ribs are alternately formed in a circumferential direction on an inner peripheral wall of an annular convex portion formed on a can bottom has been proposed (see, for example, Patent Document 3). ).

  By the way, the outer surface of the container is provided with a mark for distinguishing it from other products such as a product name and a trade name, and it is difficult to identify the product if the mark is not suitable for the purchase direction of the purchaser. , The appearance at the time of display of the product becomes worse. For this reason, it is preferable that the container to be displayed is oriented in a predetermined direction such as the front side.

  As the prior art described in the publication, on the top surface of the inclined shelf on which the container is placed, a bar-shaped guide ridge is provided in the inclination direction of the shelf, and the bottom of the container is directly below and the surface with the mark attached There has been proposed a display method in which a concave fitting portion is provided that connects directly below the opposite surface, and the container is displayed using the guide protrusion and the concave fitting portion (see, for example, Patent Document 4). In this display method, the concave fitting portion is fitted to the guide ridge in a posture in which the mark faces the front side, and a plurality of containers are arranged in the front-rear direction. As a result, the container is displayed with the mark facing forward.

JP-A-11-155701 US Pat. No. 6,502,408 JP 2000-211162 A JP 2006-288676 A

  In Patent Document 4, the concave fitting portion is fitted to the guide ridge and the container is displayed, so that the mark can be reliably directed forward. However, in such an invention, when the container is displayed on the display shelf, the container supplier needs to fit the concave fitting portion to the guide protrusion every time the container is installed in the display device. Work becomes complicated. In addition, when the mark is formed only at one location of the container, there is a concern that a display error may occur in which the mark is displayed in the state of facing backward. In addition, in stores that sell a large amount of beverages such as convenience stores, the work of throwing them in the same direction becomes very large.

  Accordingly, the inventors have developed a technique for forming a convex portion or a concave portion on the outer peripheral surface or bottom portion of a resin container such as a plastic bottle, and stopping the rotating container with this convex portion or the concave portion and directing the mark in a predetermined direction. Under development. However, when the container is manufactured in a state where the position of the mark is not related to the position of the convex portion or the concave portion, the mark cannot be directed in the intended direction.

  In the system applied to the present invention, the container is appropriately rotated in the moving step from the first position to the second position, and after the container moves to the second position, the mark of the container is directed in a specific direction. It is a display system that lets you. Moreover, the manufacturing method of the resin container to which the present invention is applied includes a container forming step of forming a container having a convex portion or a concave portion on the outer surface by using a resin material, and a convex portion or a concave portion of the container. And a mark forming step of forming a mark at a place having a predetermined positional relationship.

  Here, the convex part or the concave part can be characterized in that it is used for stopping the container rotating in the circumferential direction and directing the mark in a specific direction. Further, in the container forming step, a container is formed by blow molding using a mold, the mold has a part corresponding to the shape of the convex part or the concave part, and the container is formed by the blow molding in the convex part or the concave part. It can be characterized in that it is formed during the process. Furthermore, in the container forming step, the convex portion or the concave portion and the container can be integrally formed. In the mark forming step, the container and the forming apparatus for forming the mark are aligned by detecting the position of the convex portion or the concave portion, and the mark is formed at a location having a predetermined positional relationship. be able to.

  From another point of view, the method for manufacturing a resin container to which the present invention is applied includes a container forming step for forming a resin container, a mark forming step for forming a mark on the container, and a convex portion or a concave portion on the container. A mark formed by the mark forming process and a convex part or a concave part formed by the concave / convex forming process have a predetermined predetermined positional relationship. Features.

  Here, in the uneven | corrugated formation process, a convex part or a recessed part can be formed in the bottom part of a container, It can be characterized by the above-mentioned. Moreover, in the uneven | corrugated formation process, a convex part or a recessed part can be formed by attaching a member separately with respect to a container. Moreover, in the uneven | corrugated formation process, while the molten resin material adheres to a container, a resin material is hardened and it can be characterized by forming a convex part or a recessed part. Further, the method may further include an inspection step for inspecting the mark formed in the mark formation step, and the formation of the convex portion or the concave portion by the unevenness formation step may be performed in the inspection step.

  In addition, when the present invention is regarded as a resin container manufacturing system, the resin container manufacturing system to which the present invention is applied is a container formation that uses a resin material to form a container having a convex portion or a concave portion on the outer surface. Means, and a mark forming means for forming a mark at a location having a predetermined predetermined positional relationship with the convex portion or concave portion of the container.

  From another viewpoint, the resin container manufacturing system to which the present invention is applied includes a container forming means for forming a resin container, a mark forming means for forming a mark on the container, and a convex or concave portion on the container. A mark formed by the mark forming means and a convex portion or a concave portion formed by the concave / convex forming means have a predetermined predetermined positional relationship. Features.

  Further, when the present invention is regarded as a beverage container, the beverage container to which the present invention is applied includes a bottom portion and a side portion provided with a mark and provided above the bottom portion, and is formed of a resin material. The container main body portion and the rotated container main body portion include a convex portion or a concave portion that is used when the mark is stopped in a state in which the mark faces a predetermined direction.

  Even when the mark is placed in a random direction when displayed vertically on the display device, a resin container capable of displaying the mark in a predetermined direction can be manufactured. In addition, it is possible to provide a beverage container that can display a mark in a predetermined direction even when the mark is placed in a random direction when displayed vertically on the display device.

The best mode for carrying out the present invention will be described below in detail with reference to the accompanying drawings.
FIG. 1 is a diagram showing a schematic configuration of a display device according to an embodiment of the present invention.
As shown in FIG. 3A, the display device 30 in the present embodiment includes a placement unit 31 on which a film 20 on which a design is printed is mounted on the outer peripheral surface and a container 20 filled with a beverage is placed thereon; A guide 32 that forms a movement path of the container 20 and guides the movement of the container 20 is provided. In addition, a regulation plate 34 that is formed in a transparent manner and disposed along one side of the placement portion 31 and stops the movement of the container 20 is provided.

As shown in FIG. 2B, the display device 30 is stored in a display case 10 installed in a convenience store, a supermarket, or the like. The display case 10 has a main part composed of a case main body 10A formed in a rectangular parallelepiped shape and a door 10B provided to be openable and closable with respect to the case main body 10A.
Here, the display device 30 is placed on a shelf (not shown) provided in the display case 10. At this time, the display device 30 is installed such that the side on which the restriction plate 34 is provided is positioned on the door 10B side. Moreover, it arrange | positions so that the side in which the control board 34 was provided may be located below rather than the side on which the control board 34 was provided. That is, the display device 30 is disposed in a state of being inclined downward from the rear side of the display case 10 toward the front side (extraction unit side) from which the container 20 is taken out.

  Here, the display case 10 in the present embodiment is provided with a door on the rear side (not shown), and the rear side can also be opened. And the container 20 is thrown into the display apparatus 30 from this back side. In other words, the container 20 is provided on the rear side of the display case 10 and the rear side of the display device 30. And the thrown container 20 moves on the mounting part 31 toward the door 10B side. That is, it moves toward the purchaser who purchases the container 20. In this specification, the door 10B side may be referred to as the front side (front), and the side opposite to the door 10B may be referred to as the rear side (rear). In addition, the width direction of the display case 10 (the direction orthogonal to the direction in which the container 20 moves) may be referred to as a horizontal direction or a width direction.

The display device 30 will be described in more detail.
FIG. 2 is a diagram illustrating the placement unit 31 of the display device 30. Here, FIG. 4A is a top view of the placement portion 31, and FIG. 4B is a side view of the placement portion 31.
As shown in FIG. 2A, the placement unit 31 is placed on the first roller unit 311 and the bottom (end) of the container 20 on the movement path formed by the guide 32 (not shown in the figure). A resistance applying portion 312 that contacts and applies sliding resistance (friction resistance) to the container 20. The placement unit 31 includes a rotation stopping mechanism 313 that is disposed between the first roller unit 311 and the resistance applying unit 312 and stops the rotation of the container 20 (details will be described later).
Here, the first roller portion 311, the resistance applying portion 312, and the rotation stopping mechanism 313 are arranged in parallel in the lateral direction. The placement unit 31 includes a second roller unit 314 that moves the container 20 further forward in front of the first roller unit 311, the resistance applying unit 312, and the rotation stopping mechanism 313.

The first roller portion 311 has a plurality of roll-shaped members 311 a provided so as to be able to rotate along the moving direction of the container 20. In addition, these roll-shaped members 311a are arranged along the moving direction (front-rear direction) of the container 20.
The resistance applying unit 312 can be configured by, for example, a rubber member. For the rubber member, for example, EPDM (ethylene-propylene rubber) can be used.
The second roller portion 314 has a plurality of roll-shaped members 314 a that are rotatably provided along the moving direction of the container 20. Here, the roll-shaped members 314 a are arranged along the moving direction of the container 20. The roll-shaped members 314a are arranged in two rows in the width direction. Further, each roll-shaped member 314 a is formed wider than the roll-shaped member 311 a in the first roller portion 311.

  The rotation stop mechanism 313 is provided with a belt member 313a that is formed in an endless shape and can be circulated as shown in FIG. The rotation stop mechanism 313 includes a first tension roll 313b and a second tension roll 313c that are rotatably provided and stretch the belt member 313a from the inside. Further, a plurality of moving members 313d are provided which are fixed to the surface of the belt member 313a and arranged side by side along the moving direction of the belt member 313a, and circulate and move in accordance with the movement of the belt member 313a. Further, a plurality of protrusions 313e are provided at predetermined intervals in the moving direction of the belt member 313a and projecting from the surface of the moving member 313d. Here, the protrusion 313e is provided so as to protrude to the container 20 side from the contact position between the lowermost end portion of the container 20 to be placed and the moving member 313d (mounting portion 31).

  In FIG. 9A, the case where the resistance applying portion 312 is rubber is described. However, even if the rotation of the roller is killed, the roller is thinned out, or a simple resin plate as shown in FIG. However, compared to the roll-shaped member 311, it acts as a resistance imparting portion for the roller, and can impart a rightward rotational force.

Next, the container 20 will be described.
3 and 4 are views when the container 20 is viewed from the bottom side.
First, the container 20 shown in FIG. In addition, the figure (A1) shows the bottom part 21 of the container 20, the figure (A2) shows the cross section in the 3A line of the figure (A1), and the figure (A3) in the 3B line of the figure (A1). A cross section is shown.

As shown in FIG. 2A1, the bottom 21 of the container 20 has a flat portion 211, an annular projecting portion 212, and a recess 213.
The flat portion 211 is formed in a flat surface shape and is formed in an annular shape.
The annular projecting portion 212 is provided outside the flat portion 211 in the radial direction of the container 20, and is provided so as to be connected to the flat portion 211. Moreover, it protrudes annularly toward the lower side of the container 20 (in the direction away from the container 20). Further, the annular protruding portion 212 is provided on the outer peripheral edge of the bottom portion 21.
The recess 213 is provided on the inner side of the flat portion 211 in the radial direction of the container 20 and is connected to the flat portion 211. Further, the recess 213 is recessed inward of the container 20.

  Further, as shown in FIGS. (A1) and (A2), the container 20 is integrated with the annular protrusion 212 (the main body of the container 20) on the outer surface of the container 20 and on the side surface inside the annular protrusion 212. The first concave portion 12a and the second concave portion 12b are provided (in the present specification, hereinafter may be simply referred to as the concave portion 12). Here, the first concave portion 12a and the second concave portion 12b are arranged in a relationship facing each other. In other words, the first recess 12 a and the second recess 12 b are arranged in a state where the phase is shifted by 180 ° in the circumferential direction of the container 20.

  Further, a film F is mounted on the outer peripheral surface of the container 20 (see FIG. 1A). The film F is printed with a first identification mark 23a and a second identification mark 23b for distinguishing from other products such as trade names and trade names (in this specification, hereinafter, simply referred to as "identification marks"). 23 "). Here, the first identification mark 23a and the second identification mark 23b may be the same or different. The first identification mark 23 a and the second identification mark 23 b are arranged in a state where the phase is shifted by 180 ° in the circumferential direction of the container 20.

  The relationship between the concave portion 12 and the identification mark 23 will be described. In the circumferential direction of the container 20, the first identification mark 23a and the first concave portion 12a are arranged with a phase shifted by 180 °. The second identification mark 23b and the second recess 12b are also arranged in a state where the phases are shifted by 180 °. In other words, the first identification mark 23a and the first recess 12a are formed to have a predetermined predetermined positional relationship, and the second identification mark 23b and the second recess 12b are also set to a predetermined predetermined position. It is formed with a relationship. More specifically, the first identification mark 23a and the first recess 12a are arranged at different positions, and the second identification mark 23b and the second recess 12b are also arranged at different positions.

  More specifically, the first recess 12a is formed on the side opposite to the side where the first identification mark 23a is provided, and the second recess 12b is the side opposite to the side where the second identification mark 23b is provided. Is formed. Further, in this embodiment, a plurality of identification marks 23 are provided such as the first identification mark 23a and the second identification mark 23b, and concave portions (the first concave portion 12a and the second concave portion 12b are associated with each of these identification marks. ) Is provided.

  By the way, as shown in FIG. 5B, the bottom portion 21 is formed integrally with the annular protrusion 212 (the main body portion of the container 20) on the inner side surface of the annular protrusion 212 and protrudes toward the depression 213. The protruding portion 13a and the second protruding portion 13b (an example of a protruding portion) can be provided (in the present specification, hereinafter may be simply referred to as “the protruding portion 13”). In addition, when the 1st protrusion part 13a and the 2nd protrusion part 13b are formed integrally with the main-body part of the container 20, falling | offset | release etc. of the 1st protrusion part 13a etc. are suppressed compared with the case where it does not form integrally.

Here, the relationship between the identification mark 23 and the protrusion 13 is the same as the relationship between the recess 12 and the identification mark 23. In addition, the figure (B1) shows the bottom part 21 of the container 20, the figure (B2) shows the cross section in the 3A line of the figure (B1), the figure (B3) in the 3B line of the figure (B1). A cross section is shown.
Further, as shown in FIG. 3C, the bottom portion 21 includes a first protrusion 13a and a second protrusion 13b that protrude toward the bottom of the container 20 (in the direction away from the container 20) on the flat portion 211. Can be provided.

Further, as shown in FIG. 4A, the bottom portion 21 has a first protrusion 13a and a second protrusion protruding from the flat portion 211 in a direction away from the container 20, similar to the form shown in FIG. The protrusion part 13b can be provided. However, the 1st protrusion part 13a and the 2nd protrusion part 13b which are shown to this figure are formed by making the molten resin material adhere and harden | cure (it mentions later for details). In addition, not only adhesion of molten resin but you may separately attach and form other members, such as a resin piece, a metal piece, an adhesive agent, a sheet | seat, and a seal | sticker.
Further, the first projecting portion 13a and the second projecting portion 13b in the bottom portion 21 are, for example, concave portions formed in the flat portion 211 as shown in FIG. 4B (specifically, FIGS. 4B and 4B). It may be formed by inserting a columnar member 16 into 15.

  3 and FIG. 4, an example in which two concave portions 12, projecting portions 13, and identification marks 23 are provided has been described, but one may be provided, or three or more may be provided. However, also in this case, the recess 12 and the identification mark 23 are arranged in a predetermined positional relationship. Further, the protruding portion 13 and the identification mark 23 are also arranged in a predetermined predetermined positional relationship.

Next, operations of the display device 30 and the container 20 when the container 20 is placed on the placement unit 31 of the display device 30 will be described.
Here, FIG. 5 is a view showing the operations of the display device 30 and the container 20.
For example, when the container 20 shown in FIG. 3A is placed on the rear side of the display device 30 as shown by a solid line 4A in FIG. 5, the annular protrusion 212 (see FIG. 3A) comes into contact with the protrusion 313e. . As a result, a load acts on the rotation stop mechanism 313 from the container 20, and the moving member 313d in the rotation stop mechanism 313 moves forward. At this time, the right side of the container 20 in the drawing tends to move smoothly forward by the first roller portion 311, but the left side in the drawing is given resistance from the resistance applying portion 312, so that it moves forward. Movement is restricted.

  As a result, as indicated by the broken line 4B, the container 20 rotates clockwise (circumferential direction) while moving forward. That is, the resistance force that resists the moving force that the container 20 tries to move forward varies depending on the portion of the container 20, and the container 20 rotates. Specifically, the left and right resistance forces are different from each other at the center of gravity of the container 20, and the container 20 rotates.

  Thereafter, the protrusion 313e of the rotation stopping mechanism 313 enters the first recess 12a or the second recess 12b (see FIG. 3A) of the container 20. In other words, the first recess 12a or the second recess 12b and the protrusion 313e face each other. Thereby, rotation of the container 20 is stopped (restricted) (see the broken line 4C). Thereafter, when the container 20 reaches a predetermined position of the second roller portion 314, the container 20 and the protrusion 313e are brought into a non-contact state. Thereby, the container 20 is moved further forward by the second roller portion 314 (see the broken line 4D). In addition, although the example using the container 20 provided with the 1st recessed part 12a and the 2nd recessed part 12b was demonstrated in this figure, for example, the container 20 (FIGS. 3 (B), (C), When using FIG. 4 (A) and (B)), the protrusion 313e and the protrusion 13 come into contact with each other, and the rotation of the container 20 is stopped.

  In the present embodiment, as indicated by a solid line 4A, for example, even when the container 20 is placed on the placement unit 31 with the first identification mark 23a facing rearward, the first identification mark is in the stage of reaching the front. 23a comes to face forward. For this reason, even if the container 20 is placed (inserted) with the first identification mark 23a not facing forward, the container 20 reaches the front side of the display case 10 (see FIG. 1B). At this time, the first identification mark 23a faces forward. That is, the first identification mark 23a faces forward even if the user who puts the container 20 into the display device 30 does not perform any special operation.

  Here, FIG. 6 is a view showing another form of the display device 30. Moreover, FIG. 7 is the figure which looked at the container 20 used for this display apparatus 30 from the bottom part 21 side. FIG. 8 is a view showing the operations of the display device 30 and the container 20.

  As shown in FIG. 6, the rear side (upper side) of the placement portion 31 in the present embodiment is such that one end side (one side side) in the width direction is lower than the other end side (other side side). It is arranged in an inclined state so as to be positioned. If it demonstrates in detail, the back side of the mounting part 31 will be arrange | positioned in the state inclined so that the side by the side of the guide 32 may be located below rather than the side by the side opposite to the guide 32 side. On the other hand, the front side of the placement unit 31 (specifically, the front side of the guide 32) is not given an inclination in the width direction. In FIG. 6A, triangles and rectangles indicated by reference numerals 11 </ b> A and 11 </ b> B indicate inclined states on the rear side and the front side of the placement portion 31.

  In this embodiment, as shown in FIG. 6A, the rotation stop mechanism 313 is arranged not on the side of the movement path of the container 20 but on the side of the movement path. 1A shows a top view of the display device 30, FIG. 1B shows a side view of the rotation stop mechanism 313, and FIG. 1C shows the display device 30 viewed from the front side. The state is shown.

The rotation stop mechanism 313 shown in this figure has a configuration in which the protrusion 313e does not protrude upward and the protrusion 313e protrudes in the width direction of the rotation stop mechanism 313. In other words, the protrusion 313e is configured to protrude in a direction (crossing direction) perpendicular to the moving direction of the container 20. In other words, the container 20 protrudes from the side of the movement path of the container 20 onto the movement path.
The rotation stopping mechanism 313 includes a plurality of rod-like members 313j that protrude on the moving path of the container 20 and enter between the containers 20 to prevent the containers 20 from contacting each other.

On the other hand, as shown in FIG. 7, the bottom portion 21 of the container 20 used in the present display device 30 has a flat portion 211, an annular projecting portion 212, and a recess 213, as described above. However, in the container 20, the positions of the flat portion 211 and the annular projecting portion 212 are interchanged, and the flat portion 211 is disposed outside the annular projecting portion 212 in the radial direction of the container 20.
Further, as shown in FIGS. (A1) and (A2), the container 20 has a first protruding portion 13a protruding from the flat portion 211 toward the lower side of the container 20 (in a direction away from the container 20). 2 protrusions 13b are provided. In the present embodiment, the first protruding portion 13a and the first identification mark 23a are out of phase by 90 ° in the circumferential direction of the container 20. Further, the second projecting portion 13b and the second identification mark 23b are also 90 ° out of phase.

The operation of the rotation stopping mechanism 313 and the container 20 will be described with reference to FIG.
The container 20 (see reference numeral 17A) placed on the rear side of the display device 30 moves forward while being guided by the guide 32. At this time, the container 20 receives a rotational force from the guide 32 and moves forward while rotating counterclockwise (see reference numeral 17B). When the container 20 moves further forward while rotating, for example, the first protruding portion 13a and the protrusion 313e come into contact with each other, and the rotation of the container 20 is stopped (see reference numeral 17C). At this time, the container 20 is in a state where the first identification mark 23a faces forward. When the container 20 passes through the rotation stopping mechanism 313, the container 20 further moves forward, and is stopped at a predetermined position with the first identification mark 23a facing forward (see reference numeral 17D). In addition, in this figure, illustration of the 2nd identification mark 23b and the 2nd protrusion part 13b is abbreviate | omitted.

  Here, if the containers 20 come into contact with each other, the rotation of the containers 20 is hindered by the other containers 20, and the identification mark 23 may not face the front side. In this embodiment, since the rod-shaped member 313j is provided, contact between the containers 20 can be avoided. The protrusion 313e and the rod-shaped member 313j that have moved to the front move downward through the notch 315 formed in the placement portion 31, and then move to the rear.

Further, another embodiment of the display device 30 and the container 20 will be described.
FIG. 9 is a view showing another embodiment of the display device 30 and the container 20.
9A shows a top view of the display device 30. FIG. FIG. 9B shows the state when the display device 30 is viewed from the front side together with the container 20. Further, FIG. 9C shows the operation of the container 20.

As shown in FIG. 5B, the container 20 in this embodiment is a groove-shaped recess 221 formed in a part of the side part 22 provided above the bottom part 21 along the circumferential direction of the container 20. have. Here, the recess 221 and the identification mark 23 are in a state where the phases are shifted by 90 °.
Further, the guide 32 in the display device 30 is formed in a rod shape as shown in FIGS. Further, the placement portion 31 of the display device 30 is such that one guide 32 (right guide 32 in the drawing) side is positioned below the other guide 32 (left guide 32 in the drawing) side. It is arranged to be inclined.

  Here, the operation of the container 20 will be described with reference to FIG. The container 20 placed on the rear side of the display device 30 moves forward while being guided by the guide 32. At this time, a rotational force is applied to the container 20 from the guide 32. When the container 20 rotates, the guide 32 enters the recess 221 of the container 20, and the rotation of the container 20 is stopped (see reference numeral 22A). The container 20 moves (slides) forward while being guided by the guide 32. Thereby, the container 20 that has reached the take-out portion of the display device 30 is in a state in which the identification mark 23 faces frontward. The mounting portion 31 can be provided with a plurality of rotatable roll members.

Next, the manufacturing process (manufacturing system) of the container 20 will be described.
FIG. 10 is a diagram showing an outline of the manufacturing process of the container 20. The manufacturing process of the container 20 includes a container forming process 100 for forming the container 20, and a film F on which a pattern including the identification mark 23 is printed on the container 20 formed by the container forming process 100 (see FIG. 1A). The film mounting process 200 for mounting the film F and the inspection process 300 for inspecting the container 20 mounted with the film F in the film mounting process 200 are included. Here, the film mounting process 200 can be regarded as a mark forming process for forming the identification mark 23 on the container 20.

In the container forming step 100 in the present embodiment, for example, a resin material such as polyethylene terephthalate (PET) is used, an injection molding (blow molding) method, a preform is molded using a resin material, and then the container is blow molded. 20 is formed.
In the film mounting process 200, the resin film F on which the design including the identification mark 23 is printed or coated is placed on the outer peripheral surface side of the container 20 formed by the container forming process 100 and heated, and this film F Shrink. Alternatively, wrapping paste is applied to the outer peripheral surface. Thereby, the container 20 with the identification mark 23 attached to the outer peripheral surface is completed.

  In the inspection process 300, the appearance of the container 20 and the state of the pattern including the identification mark 23 are inspected, and any defective products are removed. In this inspection, an image sensor such as a CCD for photographing a pattern and the like, and whether or not the pattern meets a predetermined standard (for example, position, size, etc.) based on the image data acquired by the image sensor. And a determination unit configured by a computer for determination. If the determination means determines that the standard is not satisfied, it is removed as a defective product. The container 20 that has passed the inspection is loaded on the pallet in a palletizer process (not shown). In addition, this container 20 is shipped to a beverage maker etc., and the beverage maker etc. is filled with the drink which is a content, and mounting | wearing with a cap.

Next, a method for forming the concave portion 12, the protruding portion 13, and the concave portion 221 will be described in detail.
The first recess 12a and the second recess 12b shown in FIG. 3A can be formed together with the container forming step 100 when the container 20 is formed by blow molding.

  Here, FIG. 11 shows a metal mold used for blow molding performed in the container forming step 100. A mold 400 shown in the figure includes a first mold 410 that forms the left side of the container 20 and a second mold 420 that forms the right side of the container 20. The inner surfaces of the first mold 410 and the second mold 420 have a shape that follows the outer surface of the container 20, and air is blown into the molten resin in the mold to use the molten resin as the first mold 410 and the second mold 420. The container 20 is formed by pressing against the inner surface of the mold 420.

In addition, each of the first mold 410 and the second mold 420 in the present embodiment has a convex portion 430 having a shape corresponding to the first concave portion 12a and the second concave portion 12b (following shape). For this reason, when forming the container 20 by blow molding, the 1st recessed part 12a and the 2nd recessed part 12b are formed collectively.
Note that the container 20 shown in FIGS. 3B, 3C, 7A, and 9B also has a shape that follows the protrusion 13 and the recess 221 on the inner surface of the mold, as described above. When the container 20 is formed by blow molding, it can be formed together.

Next, a method for forming the protrusion 13 in the container 20 shown in FIG.
The protrusion 13 shown in the figure is formed by adhering and curing a molten resin material as described above. More specifically, after the container 20 is formed in the container forming step 100, the molten resin is attached to the bottom portion 21 of the container 20 and cured by cooling. In addition, adhesion of molten resin can be performed, for example with the apparatus shown in FIG.

FIG. 12 is a view showing an attaching device for attaching a molten resin. Here, (A1) in the figure is a diagram showing the overall configuration of the adhesion apparatus, and (A2) is a figure when the adhesion apparatus is viewed from an arrow 10E in (A1).
The attachment device 600 shown in FIGS. (A1) and (A2) includes a disk-shaped counter member 610 disposed opposite to the bottom 21 of the container 20, and a cylindrical shape connected to the center of the counter member 610 to face each other. A support member 620 that supports the member 610 and a cutting cutter 640 that cuts the columnar resin material 630 are provided. Here, the cutting cutter 640 is formed in a disk shape, and is disposed closer to the bottom 21 than the opposing member 610. The cutting cutter 640 includes a first insertion port 641 and a second insertion port 642 into which the resin material 630 is inserted. Further, the attachment device 600 includes a cutter support member 650 that is connected to the center of the cutting cutter 640 and supports the cutting cutter 640. Here, the cutter support member 650 is disposed inside the support member 620.

  Further, the attachment device 600 includes a rotation mechanism (not shown) that rotates the cutting cutter 640 in the circumferential direction of the opposing member 610 (see arrow 10B in the drawing). In addition, an advancing / retreating mechanism (not shown) is provided that causes the facing member 610, the supporting member 620, the cutting cutter 640, and the cutter supporting member 650 to approach and separate from the bottom 21 of the container 20 (see arrow 10C in the figure). Further, an advancement mechanism (not shown) that advances the resin material 630 toward the opposing member 610 by a predetermined amount is provided.

The facing member 610 is formed in a disk shape, and the surface facing the bottom portion 21 is shaped to follow the bottom portion 21. Further, the facing member 610 includes a first through hole 611 and a second through hole 612 into which the resin material 630 is inserted.
The cutting cutter 640 is also formed in a disk shape, and the surface facing the bottom 21 is shaped to follow the bottom 21. Moreover, the cutting cutter 640 has the 1st insertion port 641 and the 2nd insertion port 642 as mentioned above. The cutting cutter 640 is circumferentially positioned by a control unit (not shown) when the resin material 630 is advanced by the advance mechanism. Specifically, the positioning is performed so that, for example, the first insertion port 641 and the first through hole 611 overlap, and for example, the second insertion port 642 and the second through hole 612 overlap. By this positioning, the resin material 630 can advance to the bottom 21 side, and the resin material 630 can contact the bottom 21. The cutting cutter 640 cuts the resin material 630 by rotating.

  Here, in the adhesion apparatus 600 in this embodiment, the opposing member 610 is heated by a heating source (not shown). In this state, the facing member 610 and the cutting cutter 640 advance toward the bottom 21 by the advance / retreat mechanism. Thereafter, the resin material 630 is inserted into the first through hole 611, the second through hole 612, the first insertion port 641, and the second insertion port 642. Next, the facing member 610 and the cutting cutter 640 are retracted from the bottom 21 side by the advance / retreat mechanism. Thereby, the resin material 630 in a semi-molten state protrudes from the facing member 610 toward the bottom 21. Next, the cutting cutter 640 rotates, the protruding resin material 630 is cut, and the resin material 630 adheres to the bottom portion 21. Thereafter, the resin material 630 is cured to form the protruding portion 13 as shown in FIG.

The protruding portion 13 can also be formed by, for example, providing a discharge portion such as a nozzle and discharging molten resin from the discharge portion.
Further, the protruding portion 13 can be formed by placing a resin with an apparatus similar to the above-described attaching apparatus 600 after applying an adhesive, regardless of the thermoplastic resin (melting of the resin material). In that case, the resin material 630 is not limited to a rod-shaped material, and for example, as shown in FIG. In this case, the cutting process of the resin material 630 becomes easier. Further, as shown in FIG. 2B2, the resin material 630 is divided into sizes corresponding to the protrusions 13, and the resin material 630 is sequentially introduced into the first through hole 611 and the second through hole 612. May be. In this case, the cutting process of the resin material 630 can be omitted. In addition, the cross section of the resin material 630 is not limited to a circle, and may be a triangle shape, a C shape, a rectangular shape, or the like, as shown in FIGS.

Next, a method for forming the protruding portion 13 shown in FIG.
As described above, the protruding portion 13 shown in the figure is formed by inserting the columnar member 16 into the concave portion 15 formed in the flat portion 211. More specifically, the concave portion 15 is first formed in the container 20 and then the member 16 is inserted into the concave portion 15. The recess 15 can be formed when the container 20 is formed in the container forming step 100 by giving the mold a shape following the recess 15 as described above.

  Here, in order to turn the identification mark 23 forward (in a specific direction) in the display device 30 (see FIG. 1A), the identification mark 23, the concave portion 12, the protruding portion 13, and the concave portion 221 (hereinafter referred to as “the concave portion 12”). Etc.) may have a predetermined positional relationship. Therefore, in the film mounting process 200, the container 20 and the film F (see FIG. 1A) are positioned (aligned) so that the recesses 12 and the like and the identification mark 23 are in a predetermined positional relationship. Do. In other words, positioning between the container 20 and a mounting device (an example of a forming device) for mounting the film F is performed. Then, after winding this film F around the container 20, this film F is heated and the film F is contracted. Thereby, the container 20 having the predetermined positional relationship between the identification mark 23 and the recess 12 is completed.

The positioning of the container 20 and the film F can be performed, for example, by detecting the concave portion 12 of the container 20 rotating in the circumferential direction and stopping the rotation of the container 20 based on the detection result.
In addition, the detection of the recessed part 12 etc. can be performed using the mechanical sensor which detects these by contacting the recessed part 12 grade | etc., For example. In addition, the detection of the recesses 12 and the like can be performed by, for example, an image sensor such as a CCD, a computer that analyzes data acquired by the image sensor, or the like. Moreover, the said rotation of the container 20 can be performed by making the rotating roll-shaped member contact the outer peripheral surface of the container 20, for example.

  In the above description, the embodiment in which the recesses 12 and the like are formed before the film mounting process 200 has been described as an example. Incidentally, the formation of the recesses 12 and the like can be performed after the film mounting process 200. That is, the unevenness forming process for forming the recesses 12 and the like can be provided after the film mounting process 200.

For example, the formation of the protruding portion 13 (the protruding portion 13 formed by adhesion of the molten resin) in FIG. 4A can be performed not only before the film mounting step 200 but also after the film mounting step 200. In this case, for example, the identification mark 23 on the film F is detected by the same method as described above, and the container 20 is positioned. And the protrusion part 13 is formed with respect to the positioned container 20 by the said adhesion apparatus 600 grade | etc.,.
The positioning of the container 20 can be performed based on the detection result other than the identification mark 23. For example, an identification mark having a predetermined positional relationship with the identification mark 23 may be included in the pattern on the film F, and this identification mark may be detected for positioning. Further, when the design of the film F includes a barcode having a predetermined positional relationship with the identification mark 23, positioning can be performed by detecting the barcode with a barcode reader or the like.

  Moreover, the formation of the protruding portion 13 (the protruding portion 13 formed by inserting the columnar member 16) in FIG. In addition, when inserting the columnar member 16 with a machine, for example, the container 20 is rotated in the circumferential direction, and for example, the recess 15 is detected by the same method as described above. Then, based on the detection result, the rotation of the container 20 is stopped and the columnar member 16 is inserted. The rotation of the container 20 may be stopped based on the detection result of the identification mark 23, the identification mark, etc. instead of the recess 15.

Furthermore, the formation of the protrusion 13 in FIG. 4A and the formation of the protrusion 13 in FIG. 4B can be performed in the inspection process 300. In the inspection process 300, the conveyance speed of the container 20 is lower than in other processes due to the convenience of processing contents. For this reason, it is easier to form the protruding portion 13 than in other processes.
Further, in the inspection process 300, as described above, an image sensor such as a CCD, and a determination unit that determines whether or not a design or the like satisfies a predetermined standard based on image data acquired by the image sensor. An inspection device is provided. Here, in order to form the protrusion 13, it is necessary to detect the identification mark 23 and the like as described above in order to position the container 20. By the way, the inspection process 300 is already provided with an image pickup device that can detect the identification mark 23 and the like. For this reason, when the protrusion 13 is formed in the inspection process 300, the identification mark 23 and the like can be detected without providing a separate CCD or the like.

In the above description, the example in which the identification mark 23 is formed by mounting the film F has been described. However, the identification mark 23 may be formed by printing directly on the outer surface of the container 20, for example. In this case, the container 20 is positioned based on the detection result of the concave portion 12 and the like in the container 20, and printing is performed so that the concave portion 12 and the identification mark 23 have a predetermined positional relationship.
The identification mark 23 may be formed by providing irregularities on the outer surface of the container 20. In addition, this unevenness | corrugation can be formed by giving the shape which followed this unevenness | corrugation to the metal mold | die which forms the container 20, for example. Moreover, although the cylindrical container 20 was illustrated above, you may form as prismatic containers 20, such as a square pillar.

It is the figure which showed schematic structure of the display apparatus which concerns on embodiment of this invention. It is a figure explaining the mounting part of a display apparatus. It is a figure explaining the mounting part of a display apparatus. It is a figure at the time of seeing a container from the bottom side. It is a figure at the time of seeing a container from the bottom side. It is the figure which showed operation | movement of a display apparatus and a container. It is the figure which showed the other form of the display apparatus. It is the figure which looked at the container used for a display apparatus from the bottom side. It is the figure which showed operation | movement of a display apparatus and a container. It is the figure which showed other forms of the display apparatus and the container. It is the figure which showed the outline | summary of the manufacturing process of a container. The metal mold | die used for the blow molding performed at a container formation process is shown. It is the figure which showed the adhesion apparatus which adheres molten resin.

12a ... 1st recessed part, 12b ... 2nd recessed part, 13a ... 1st protrusion part, 13b ... 2nd protrusion part, 20 ... Container, 21 ... Bottom part, 22 ... Side part, 23a ... 1st identification mark, 23b ... 2nd Identification mark, 100 ... Container forming process, 200 ... Film mounting process, 300 ... Inspection process, 400 ... Mold

Claims (13)

A container forming step of forming a container having a convex portion or a concave portion on the outer surface using a resin material;
A mark forming step of forming a mark at a predetermined positional relationship with the convex portion or the concave portion of the container;
The manufacturing method of the resin container containing this.   The method for manufacturing a resin container according to claim 1, wherein the convex portion or the concave portion is used to stop the container rotating in the circumferential direction and to direct the mark in a specific direction. In the container forming step, the container is formed by blow molding using a mold,
The mold has a portion corresponding to the shape of the convex portion or the concave portion,
The method for producing a resin container according to claim 1, wherein the convex portion or the concave portion is formed when the container is formed by the blow molding.   The method for manufacturing a resin container according to claim 1 or 2, wherein in the container forming step, the convex portion or the concave portion and the container are integrally formed.   In the mark forming step, the container and the forming apparatus for forming the mark are aligned by detecting the position of the convex portion or the concave portion, and the mark is formed at a position having the predetermined positional relationship. The method for producing a resin container according to any one of claims 1 to 4. A container forming step for forming a resin container;
A mark forming step for forming a mark on the container;
Including a concavo-convex forming step for forming a convex portion or a concave portion in the container,
The resin container characterized in that the mark formed by the mark forming step and the convex portion or the concave portion formed by the concave / convex forming step have a predetermined positional relationship determined in advance. Production method.   The method for producing a resin container according to claim 6, wherein, in the unevenness forming step, the convex portion or the concave portion is formed on a bottom portion of the container.   In the said uneven | corrugated formation process, the said convex part or recessed part is formed by attaching a member separately with respect to the said container, The manufacturing method of the resin-made containers of Claim 6 or 7 characterized by the above-mentioned.   In the said uneven | corrugated formation process, while the molten resin material adheres to the said container, the said resin material is hardened, The said convex part or recessed part is formed, The manufacture of the resin-made containers of Claim 6 or 7 characterized by the above-mentioned. Method. An inspection step of inspecting the mark formed by the mark formation step;
The method for manufacturing a resin container according to any one of claims 6 to 9, wherein the formation of the convex portion or the concave portion by the unevenness forming step is performed in the inspection step. Container forming means for forming a container having a convex portion or a concave portion on the outer surface by using a resin material;
A mark forming means for forming a mark at a predetermined positional relationship with the convex portion or the concave portion of the container;
System for manufacturing plastic containers including Container forming means for forming a resin container;
Mark forming means for forming a mark on the container;
And a concavo-convex forming means for forming a convex portion or a concave portion in the container,
The resin container characterized in that the mark formed by the mark forming means and the convex portion or the concave portion formed by the concave-convex forming means have a predetermined positional relationship determined in advance. Manufacturing system. A container body portion formed of a resin material, including a bottom portion and a side portion provided with a mark and provided above the bottom portion;
A convex part or a concave part used when the rotated container main body part is stopped in a state where the mark faces a predetermined direction;
Beverage containers containing.

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