KR20010034902A - Insulating container - Google Patents

Abstract

A container body having a side wall and a bottom portion disposed on a lower end side of the side wall, and an inward curl portion formed by curling the sleeve material toward the center side of the container at a lower end side, and the container body at an upper end side thereof. An adhesive portion bonded to the sidewalls of the at least one side, the at least one portion between the inwardly curling portion and the adhesive portion has a sleeve disposed while securing a space outside the sidewall, and a radius of curvature of the sleeve member at the inwardly curling portion is Insulated containers set in the range of 0.6-2.0 mm are provided. As a result, the possibility of cracking in the sleeve member can be reduced, and the container body is less likely to be caught in the inward curl portion when the container body and the sleeve are assembled to each other, thereby enabling smooth assembly.

Description

Insulated Container {INSULATING CONTAINER}

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a device suitable for the manufacture of paper heat insulating containers and their heat insulating containers used for instant foods poured with hot water, foods cooked by heating using a microwave oven, and the like.

As a paper heat insulation container used for foods, such as instant ramen, the container which provided the heat insulation by attaching the paper heat insulating material to the outer periphery of the trunk of a paper cup main body is known. As a heat insulating material, the thing of the wave-shaped plate in which the convex part extended in the longitudinal direction and the recessed part alternately lined up in the circumferential direction of the cup main body is generally used.

Japanese Patent Laid-Open No. 8-113274 proposes a heat insulating container in which the width of the recessed portion of the heat insulating material is reduced to that of the convex portion, thereby increasing the planar portion on the side of the container. Japanese Utility Model Publication No. 4-45216 or Japanese Patent Application Laid-Open Publication No. Hei 8-104372 discloses an insulating container in which a liner or foil is wound on a wrinkled or embossed insulation to remove unevenness of the surface. Is proposed. Japanese Utility Model Laid-Open Publication No. 4-45212 proposes a constitution in which heat insulation is provided by a space formed between double cups without using a corrugated plate-shaped heat insulator.

The conventional heat insulation container mentioned above is limited to the cup-shaped shape whose outer diameter of an opening part is smaller than a height by the limitation of the physical strength of a container, and the capacity was about 750 cc upper limit. The reason is that if the outer diameter of the opening is increased without changing the cardboard as the insulating container material, and the content is increased, deformation of the entire container is likely to occur due to stress such as torsion, compression from the side, bending, etc. This is due to the risk of releasing by hand after supplying hot water.

In addition, the conventional paper heat insulating container has the advantage that hot water cooking is easy and easy to grasp with one hand, the user can not taste the sense of tableware such as bowl, rice bowl, bowl and the like. Easy to eat is also inferior to cup type ones. It is also not suitable for eating while visually enjoying a variety of rich ingredients.

Moreover, when the uneven | corrugated heat insulation material is exposed to the side surface of a container, it is difficult to provide a high quality design on the side surface, and the letter, pattern, etc. printed on the side surface become very hard to see.

As the heat insulation container of the cooked food, in addition to the cup-shaped paper heat insulation container mentioned above, the outer diameter of an opening part is larger than height, and the bowl-shaped and rice-shaped plastic heat insulation container which has a wide opening part is also used. However, in the case of hot water cooking or heating cooking by a microwave oven, the plastic container is sanitary in that harmful ingredients are eluted from the plastic material in hot water, and disposal and incineration are difficult to perform in comparison with paper containers. There is an environmental problem.

The first object of the present invention is to have a shape and heat insulating property close to the bowl or bowl with a larger outer diameter of the upper opening than the height, easy to grip, excellent design, and freedom of printing expression It is providing a heat insulating container made of paper which is high, hygienic and has a low environmental load.

In order to achieve this object, the heat insulating container of the first invention has a cylindrical body portion with an open top and a bottom portion blocking a lower portion of the body portion, and at least an inner surface of the paper cup body with a polyolefin-based resin layer formed thereon; And a paper sleeve mounted to form a gap between the outer circumferential surfaces of the body portion of the paper cup body, wherein the paper cup body has an outer diameter of an opening at the top of the body portion greater than the height of the paper cup body.

Ribs may be formed in the paper cup body in a direction in which the body portion is circumferentially wound. The rib may be formed so as to continuously rotate the body portion, or may be formed so as to intermittently rotate the body portion. An inward curl may be formed at the lower end of the paper sleeve, and the inward curl may contact an outer circumferential surface of the lower portion of the body. The heat insulating member may be inserted into the gap. And the paper cup main body functions as a container main body of a heat insulation container, and the trunk part comprises the side wall of a container main body.

A second object of the present invention is to provide an insulated container having low manufacturing cost that can be held safely and cleanly by hand without feeling too much heat even in a large container heated to a high temperature.

In order to achieve this object, the heat insulating container of the second aspect of the present invention is a combination of a paper cup body having a bottom with a polyolefin-based resin coated on its inner surface and an outward curl portion formed at an upper opening edge thereof, and a reverse cone trapezoidal paper sleeve. A space is formed between the outer surface of the body of the paper cup body and the inner surface of the paper sleeve, and has a predetermined length on the side wall of the paper sleeve, and connects both ends of the bent line formed in a substantially circumferential direction of the side wall. At least a pair of handle pieces which are divided by the cutting line and which can be folded back outward by the bending line are formed.

The bending line may be a straight line of the shortest distance connecting two points in the circumferential direction of the side wall, and may be bent below the straight line. A connecting part that can be easily separated may be formed in the middle of the cut line. A notch may be formed in a part of the periphery of the handle piece. The tip portion of the handle piece may be folded back by a small bending line. Both ends of the cutout line may be drawn and terminated. And the paper cup main body functions as a container main body of a heat insulation container, and the trunk part comprises the side wall of a container main body.

In the heat insulation container mentioned above, in order to ensure predetermined | prescribed heat insulation, it is necessary to ensure a sufficient space between a paper cup main body and a sleeve. On the other hand, when the container is removed by hand, it is necessary to hold the sleeve or its handle piece to support the whole container. Therefore, the paper cup body and the sleeve must be bonded with sufficient strength. In this way, in order to bond the two with sufficient strength while securing a sufficient distance between the paper cup main body and the sleeve, it is necessary to consider the relative shape, the dimensional relationship, and the like between the paper cup main body and the sleeve. Moreover, these relationships should satisfy the conditions for smoothing the process of assembling both and not causing defects.

A third object of the present invention is to provide a heat insulating container capable of adhering a container main body such as a paper cup main body and a sleeve to a sufficient strength, and having excellent assembly ability of both.

In order to achieve this object, 3rd invention includes the group of heat insulation containers demonstrated below.

That is, the heat insulation container which concerns on 3rd invention consists of a container main body which has a side wall (body part) and the bottom part arrange | positioned at the lower end side of the said side wall, and a sheet-shaped sleeve material, and the said lower end side is directed toward the center side of a container. An inward curl portion formed by curling is formed, and an upper end side is formed with an adhesive portion bonded to the side wall of the container body, and at least a portion between the inward curl portion and the adhesive portion is disposed while securing a space outside the side wall. In the inwardly curling portion, the sleeve member is rolled in until the tip direction of the sleeve member crosses an upward direction along the centerline of the container body with respect to a cross section in a plane including the centerline of the container body.

In addition, another heat insulating container according to the third aspect of the invention comprises a container body having a side wall (body portion) and a bottom portion disposed on the lower end side of the side wall, and a sheet-like sleeve member, and the lower end side is directed toward the center side of the container. An inward curl portion formed by curling is formed, and an upper end side is formed with an adhesive portion bonded to the side wall of the container body, and at least a portion between the inward curl portion and the adhesive portion is disposed while securing a space outside the side wall. The tip end of the sleeve member, which is rolled up by the inward curling portion, is located outside the container than the portion closest to the centerline of the container body in the inwardly curling portion.

Another heat insulating container of the third invention comprises a container body having a side wall (body portion), a bottom portion disposed on the lower end side of the side wall, and a thread heel extending from the side wall to the lower end side thereof, and a sheet-like sleeve member, An inward curl portion formed by curling the sleeve member toward the center side of the container is formed at the lower end side, and an adhesive part adhered to the side wall of the container body is formed at the upper end side, and at least part of the side wall is formed between the inward curl part and the adhesive part. It is provided with the sleeve arrange | positioned at the outer side of the space | interval, and the clearance gap between the front-end | tip of the said sleeve material and the inner wall surface of the said sleeve rolled up by the said inward curl part is 1 mm or less.

According to these heat insulation containers, when assembling a container main body and a sleeve together, it is difficult for a thread heel to be caught by an inward curl part, and both can be assembled smoothly and a yield can be improved.

The heat insulation container of 3rd invention consists of a container main body which has a side wall (body part), the bottom part arrange | positioned at the lower end side of the said side wall, and the thread heel extended to the lower end side from the said side wall, and a sheet-shaped sleeve material, An inward curl portion formed by curling the sleeve member toward the center side of the container, an upper end side is formed with an adhesive portion adhered to the side wall of the container body, and at least a portion between the inward curl portion and the adhesive portion is an outer side of the side wall It may be provided with the sleeve arrange | positioned while ensuring a space, and the clearance gap between the front-end | tip of the said sleeve material and the inner wall surface of the said sleeve rolled up by the said inward curl part may become smaller than the thickness of the said threaded sole.

According to this heat insulation container, when the container main body and a sleeve are mutually assembled, there is no fear that the thread heel enters the inward curl and pushes the inward curl. Therefore, both can be assembled smoothly and the yield can be improved.

The heat insulation container of 3rd invention consists of a container main body which has a side wall (body part), the bottom part arrange | positioned at the lower end side of the said side wall, and the thread heel extended to the lower end side from the said side wall, and a sheet-shaped sleeve material, An inward curl portion formed by curling the sleeve member toward the center side of the container, an upper end side is formed with an adhesive portion adhered to the side wall of the container body, and at least a portion between the inward curl portion and the adhesive portion is an outer side of the side wall The sleeve is provided with a sleeve disposed while securing a space, the thread heel is collapsed so that the thread heel is located inside the container than a straight line extending the outer surface of the side wall with respect to the cross section in the plane including the center line of the container body. You may also

The heat insulation container of 3rd invention consists of a container main body which has a side wall (body part), the bottom part arrange | positioned at the lower end side of the said side wall, and the thread heel extended to the lower end side from the said side wall, and a sheet-shaped sleeve material, An inward curl portion formed by curling the sleeve member toward the center side of the container, an upper end side is formed with an adhesive portion adhered to the side wall of the container body, and at least a portion between the inward curl portion and the adhesive portion is an outer side of the side wall It may be provided with the sleeve arrange | positioned while ensuring a space, and the burr of the said heel may protrude inside a container.

The heat insulation container of 3rd invention consists of a container main body which has a side wall (body part), the bottom part arrange | positioned at the lower end side of the said side wall, and the thread heel extended to the lower end side from the said side wall, and a sheet-shaped sleeve material, An inward curl portion formed by curling the sleeve member toward the center side of the container, an upper end side is formed with an adhesive portion adhered to the side wall of the container body, and at least a portion between the inward curl portion and the adhesive portion is an outer side of the side wall The outer peripheral position of the lower end of the said sheath may be located in the said container main body center line side rather than the site | part which most approaches the center line of the said container main body in the said inward curl part. The amount of displacement between the outer circumferential position of the lower end of the thread and the portion closest to the center line of the container body in the inward curling portion may be set in a range of 0.01 to 1 mm with respect to the radial direction of the container body.

According to these insulated containers, when assembling a container main body and a sleeve mutually, a thread heel is hard to be caught by an inward curl part, and both can be assembled smoothly and a yield can be improved.

The heat insulation container of 3rd invention consists of a container main body which has a side wall (body part) and the bottom part arrange | positioned at the lower end side of the said side wall, and a sheet-shaped sleeve material, and the said lower end side curls the said sleeve material toward the center side of a container. An inward curl portion is formed, an upper end side is provided with an adhesive portion adhered to the sidewall of the container body, and at least a portion between the inward curl portion and the adhesive portion is provided with a sleeve disposed while securing a space outside the sidewall, A gap may be formed between the inward curl and the outer surface of the container body facing the site.

According to this heat insulation container, since a clearance gap is formed between an inward curl part and the outer surface of the container main body facing to this site | part, a wrinkle does not arise in a container main body.

The gap may be set in a range of 0.01 to 1 mm. In this case, wrinkles do not occur in the container body, and deformation of the heat insulating container can be sufficiently suppressed.

The heat insulation container of 3rd invention consists of a container main body which has a side wall (body part) and a bottom part arrange | positioned at the lower end side of the said side wall, and is equipped with the sleeve which is arrange | positioned while ensuring space on the outer side of the said side wall. The lower end of the container body may protrude downward from the lower end of the sleeve.

According to this heat insulation container, since the lower end of a container main body directly contacts a table etc., and does not generate distortion of the container which arises when the lower end of a sleeve contacts, a heat insulation container can be put stably.

An inward curl portion formed by curling the sleeve member toward the center side of the container is formed on the lower end side of the sleeve, and an adhesive part adhered to the side wall of the container body is formed on the upper end side of the sleeve, and the sleeve includes the inward curl portion and At least a part of the bonding portion may be disposed while securing a space on the outer side of the side wall. According to this heat insulation container, since the lower end of a container main body directly contacts a table etc., and does not generate distortion of the container which arises when the lower end of an inward curl part contacts, a heat insulation container can be put stably.

The container main body is formed with a threaded sole formed extending from the side wall to the lower end side thereof, and a lower end of the threaded sole may constitute a lower end of the container main body. According to this heat insulation container, since the lower end of the hard and flatness of the heel is in contact with a table etc., a heat insulation container can be put stably.

The lower end of the said container main body may protrude in the amount of protrusion of 0.01-5 mm with respect to the lower end of the said sleeve. In this case, the protrusion of the container body cannot be discriminated in appearance, and the design of the container is not impaired.

The heat insulation container of 3rd invention has the side wall (body part) and the bottom part arrange | positioned at the lower end side of the said side wall, The container main body in which the outward curl part formed by being curled toward the outer side of the container at the upper end side of the said side wall, and a sheet-like sleeve material It is formed in the upper end side is bonded to the side wall of the container main body is formed, and having a sleeve disposed while securing a space on the outside of the side wall, in the cross section in the plane including the center line of the container body On the other hand, the side wall may be formed such that a portion facing the bonding portion is inclined in the container inward direction with respect to an extension line of the lower portion of the portion.

According to this heat insulating container, the side wall and the sleeve are in close contact with each other at the site of the bonding portion, and thus the adhesive strength can be improved. Moreover, since the side wall of the adhesion | attachment part site | part was inclined, it does not need to bend the sleeve in order to contact with a side wall, and it does not affect the external appearance of a container.

The heat insulation container of 3rd invention has the side wall (body part) and the bottom part arrange | positioned at the lower end side of the said side wall, The container main body in which the outward curl part formed by being curled toward the outer side of the container at the upper end side of the said side wall, and a sheet-like sleeve material It is formed in the upper end side is bonded to the side wall of the container main body is formed, and having a sleeve disposed while securing a space on the outside of the side wall, in the cross section in the plane including the center line of the container body On the other hand, the side wall may be formed so as to be bent so that the portion facing the bonding portion conforms to the sleeve member.

According to this heat insulating container, the side wall and the sleeve are in close contact with each other at the site of the bonding portion, and thus the adhesive strength can be improved. Moreover, since the side wall is curved, it is not necessary to bend the sleeve in order to be in close contact with the side wall, and it does not affect the appearance of the container.

The heat insulation container of 3rd invention has the side wall (body part) and the bottom part arrange | positioned at the lower end side of the said side wall, The container main body in which the outward curl part formed by being curled toward the outer side of the container at the upper end side of the said side wall, and a sheet-like sleeve material It is formed in the upper end side is bonded to the side wall of the container main body is formed, and having a sleeve disposed while securing a space on the outside of the side wall, in the cross section in the plane including the center line of the container body In contrast, the sleeve may be formed such that the adhesive portion is curved along the sidewall.

According to this heat insulating container, the side wall and the sleeve are in close contact with each other at the site of the bonding portion, and thus the adhesive strength can be improved.

The heat insulation container of 3rd invention has the side wall (body part) and the bottom part arrange | positioned at the lower end side of the said side wall, The container main body in which the outward curl part formed by being curled toward the outer side of the container at the upper end side of the said side wall, and a sheet-like sleeve material It is formed in the upper end side and the adhesive portion is bonded to the side wall of the container body, and provided with a sleeve disposed while securing a space on the outside of the side wall, and the outer diameter just below the outward curl portion of the container body and The container body and the sleeve formed so as to have a difference between the inner diameter of the sleeve at a portion facing directly below the outward curling portion in a range of -1.0 to +0.5 mm may be bonded to each other via the bonding portion.

According to this heat insulation container, while ensuring sufficient adhesive force in an adhesion part, there is no possibility of making wrinkles generate | occur | produce on the side wall of a container main body.

The heat insulation container of 3rd invention has the side wall (body part) and the bottom part arrange | positioned at the lower end side of the said side wall, The container main body in which the outward curl part formed by being curled toward the outer side of the container at the upper end side of the said side wall, and a sheet-like sleeve material The upper end side is formed with an adhesive portion bonded to the side wall of the container body via an adhesive, and provided with a sleeve disposed while securing a space on the outside of the side wall, the upper end of the adhesive portion is the lower end of the outward curl portion It may be set at a position separated by 1 mm or more downward along the direction of the center line of the container main body.

According to this heat insulation container, there is no possibility that the adhesive agent of an adhesion part may adhere to an outward curl part.

The heat insulation container of 3rd invention has the side wall (body part) and the bottom part arrange | positioned at the lower end side of the said side wall, The container main body in which the outward curl part formed by being curled toward the outer side of the container at the upper end side of the said side wall, and a sheet-like sleeve material The upper end side is formed with an adhesive portion bonded to the side wall of the container body via an adhesive, and provided with a sleeve disposed while securing a space on the outer side of the side wall, the adhesive portion with respect to the centerline direction of the container body It may be formed over a width of 3 mm or more.

According to this heat insulation container, sufficient adhesive strength in an adhesion part can be ensured.

The heat insulation container of 3rd invention has the side wall (body part) and the bottom part arrange | positioned at the lower end side of the said side wall, The container main body in which the outward curl part formed by being curled toward the outer side of the container at the upper end side of the said side wall, and a sheet-like sleeve material The upper end side is formed with an adhesive portion bonded to the side wall of the container body via an adhesive, and provided with a sleeve disposed while securing a space on the outside of the side wall, the upper end of the adhesive portion than the upper end of the sleeve It may be located below.

According to this heat insulation container, there is no possibility that the adhesive agent of an adhesion part may protrude from the upper end of a sleeve.

In the above-mentioned insulated container, it is necessary to have a certain strength of the sleeve, so that a cardboard having a considerable thickness of the material should be used. However, it is not easy to process thick cardboard to form the inward curl as described above, which may cause cracks in the paper and distortion of curl formation. In addition, the sleeve is formed in a cylindrical or conical trapezoidal shape by adhering both ends of the blank cut into a predetermined shape. Therefore, in the bonding portion where both ends of the blank overlap each other, the thickness is doubled and the formation of curl is particularly difficult, and there is a possibility that curl of a good shape cannot be formed.

The 4th object of this invention is to provide the heat insulation container which can form the inward curl part of a sleeve easily, and can obtain favorable curl shape.

In order to achieve this object, the heat insulating container according to the fourth aspect of the invention comprises a container body having a side wall (body portion) and a bottom portion disposed on the lower end side of the side wall, and a sheet-like sleeve member, and the sleeve member is provided on the lower end side. An inward curl portion formed by curling toward the center side of the container is formed, an upper end side is formed with an adhesive portion bonded to the side wall of the container body, and at least a portion of the inward curl portion and the adhesive portion secures a space outside the side wall. The sleeve is disposed while being provided, and the radius of curvature of the sleeve member in the inwardly curled portion is set in a range of 0.6 to 2.0 mm. The radius of curvature is more preferably in the range of 1.1 ~ 1.5mm. You may use paper as said sleeve material, and what is necessary is just to set the basis weight of the paper to the range of 150-400 g / m <2>.

According to this insulated container, it is possible to reduce the possibility of cracking in the sleeve member, and the container main body is less likely to be caught in the inward curl portion when the container main body and the sleeve are assembled to each other, thereby enabling smooth assembly.

The other heat insulation container of 4th invention consists of a container main body which has a side wall (body part) and a bottom part arrange | positioned at the lower end side of the said side wall, and a sheet-shaped sleeve material, and the said lower end side curls the said sleeve material toward the center side of a container. An inward curl portion is formed, an upper end side is provided with an adhesive portion adhered to the sidewall of the container body, and at least a portion between the inward curl portion and the adhesive portion is provided with a sleeve disposed while securing a space outside the sidewall; And a friction reducing layer is formed on the surface of the sleeve member in a region corresponding to the inwardly curling portion.

According to this insulated container, when the inward curl portion is formed, the slip of the sleeve member becomes good, the inward curl portion can be easily formed, and cracks are less likely to occur in the sleeve material.

As the friction reducing layer, a composition containing cellulose resin may be used, or a composition containing acrylic resin may be used. As the friction reducing layer, an overprint varnish for protecting the printing surface may be used. In this case, the manufacturing process can be reduced.

The friction reducing layer may be formed on a surface of the sleeve member facing outward. In this case, if the printing surface is formed in the container outer side of a sleeve material, overprint varnish can also serve as a friction reducing layer.

Another insulated container of the fourth aspect of the present invention comprises a container body having a side wall (body portion) and a bottom portion disposed on the lower end side of the side wall, and a sheet-shaped sleeve member, and the lower end side curls the sleeve member toward the center side of the container. An inward curl portion is formed, an upper end side is formed with an adhesive portion bonded to the side wall of the container body, and at least a portion between the inward curl portion and the adhesive portion is provided with a sleeve disposed while securing a space outside the side wall. And the sleeve is formed by polymerizing and bonding both ends of the belt-shaped sleeve wound around the container body to each other, wherein the cut member is formed with a cut portion for reducing the polymerization area, and the cut portion is the inward curl portion. The sleeve member is cut out from the region corresponding to the It is done.

Another insulated container of the fourth aspect of the present invention comprises a container body having a side wall (body portion) and a bottom portion disposed on the lower end side of the side wall, and a sheet-shaped sleeve member, and the lower end side curls the sleeve member toward the center side of the container. An inward curl portion is formed, an upper end side is formed with an adhesive portion bonded to the side wall of the container body, and at least a portion between the inward curl portion and the adhesive portion is provided with a sleeve disposed while securing a space outside the side wall. And the sleeve is formed by polymerizing and adhering both ends of the belt-shaped sleeve material wound around the container body to each other, wherein the cut member is formed with a cut portion for reducing the polymerization area, and the cut portion corresponds to the inwardly curled portion. Cutting off the sleeve material to reduce the polymerization area in the area by at least 50%. It is formed.

According to these heat insulation containers, an inward curl part can be formed easily and the shape of an inward curl part can be made favorable.

The said cut part may be formed in the edge part of the side arrange | positioned inside a container among the said both ends of the said sleeve material. In this case, since the cut end of a cut part is not exposed to the outer side of a sleeve, it does not affect the external appearance of a container.

The cut portion may be formed by cutting the corner of the sleeve member obliquely with respect to one end side of the both ends.

In the paper-made container like the above-mentioned heat insulation container, the film-shaped cover material comprised by laminating | stacking a metal or resin to the outward curl part of the opening end may adhere | attach, and the inside of a container may be sealed. By the way, the curled portion to which the lid member is bonded is formed by pushing the open end of the container into the mold member and making it round, and the cross-sectional shape after the molding is almost very round. Therefore, there exists a possibility that the contact | adhesion part of a cover material and a curl part is close to line contact, the adhesive area by an adhesive is insufficient, and the joining strength cannot be fully secured.

Moreover, in the conventional container filling line, a cover material is pressed and adhere | attached simultaneously to each of many container using the large platen. In this case, although the positional accuracy of the platen with respect to each container is not good, the pressure applied to each container is equalized by the elastic deformation of a container, and the lid | cover material is adhere | attached in a comparatively uniform state by this. However, when a conventional production line is used for a container lacking elasticity, such as a container made of paper, the container is not sufficiently deformed, so that the lid member cannot be uniformly bonded.

A 5th object of this invention is to provide the container which has a curl part suitable for adhesion of a lid | cover material.

In order to achieve the object, the container according to the fifth aspect of the invention has a side wall (body portion) in which a curl portion is formed at a peripheral edge of the opening portion, and a bottom portion facing the opening portion, and the width of the curl portion in the container axis direction is "A". When the width | variety of the container radial direction of the said curl part is "B", and the thickness of the said side wall is "t",

2t <A <B

To satisfy the conditions.

Another heat insulating container according to the fifth aspect of the invention has a container body having a side wall (body portion) having a curl portion formed at a peripheral edge of the opening portion and a bottom portion facing the opening portion, and an adhesive portion bonded to the side wall of the container body at one end side thereof. And a sleeve disposed on the outer side of the side wall while securing a space, the width of the curl portion in the container axial direction is "A", the width of the curl portion in the container radial direction is "B", and the thickness of the side wall. When is called "t",

2t <A <B

To satisfy the conditions.

According to these containers, when the lid member is bonded to the curled portion, the width to be bonded through the adhesive agent can be increased to reliably bond the lid member to a predetermined strength. In addition, since the curl portion is easily deformed in the container axial direction when the cover member is pressed, even when a material such as paper is hardly elastically deformed, the cover member is adhered to a container made of foamed plastic or the like. It is economical because a conventional line can be used as it is.

The cover member of the film type which closes the said opening part is adhere | attached to the said curl part, The said cover material may be adhere | attached with adhesive force as peeling force becomes the range of 400-900 gf / 15 mm width with respect to the said curl part. In this case, the joint width of the lid member and the curl portion joined through the adhesive can be increased, and the lid member can be bonded to the predetermined strength with certain strength. Moreover, when peeling hot water into a cup main body in the state which peeled off a part of cover material, and removing a cover material after elapse of predetermined time, preferable peeling force is implement | achieved. The side wall may be formed of paper.

The sleeve used for the heat insulation container of this invention is manufactured by joining the both ends, for example, winding a fan-shaped blank on the outer periphery of a predetermined mandrel. In this production, the blank is applied to the joint portion of the joint and then fed directly under the mandrel, or the curl portion needs to be processed on the shaft end of the sleeve on the mandrel, thereby developing an apparatus capable of efficiently performing such a process. This is desired. Furthermore, since the sleeve is thin and the strength is low, attention must be paid to the processing of the curl portion. Due to the processing of the curled portion, the sleeve may be firmly adhered to the mandrel, and in such a state, it is also necessary to consider taking out of the device without damaging the sleeve.

A sixth object of the present invention is to provide an apparatus capable of reasonably and efficiently performing various treatments according to the sleeve production of a heat insulating container.

In order to achieve this object, the sixth invention provides a sleeve manufacturing apparatus, a blank supply apparatus, and a sleeve ejecting apparatus described below.

That is, the sleeve manufacturing apparatus which concerns on 6th invention is a sleeve manufacturing apparatus of the heat insulation container shape | molding the tapered cylindrical sleeve used as an exterior of a heat insulation container from a fan-shaped blank, and can be fitted to the inner periphery of the said sleeve. The adhesive is applied to one end of the blank just below the mandrel having a tapered shaft body, a conveying device for conveying the mandrel along a predetermined winding path, and the mandrel to be fed to a predetermined position on the winding path. And a winding device for winding the blank supplied from the blank supply device onto the mandrel so that the adhesive applied to the one end overlaps the other end, and a joint portion of the sleeve formed on the mandrel. The pressing sealing device is installed side by side along the winding path, and And a plurality of curl processing devices for processing the curl by pressing the processing jig on the projections of the sleeve from the mandrel, and a sleeve ejecting device for separating the sleeve on which the curl is processed from the mandrel. At least one is to heat the processing jig and press it onto the protrusion of the sleeve.

According to this sleeve manufacturing apparatus, since a sleeve softens by the heat of a processing jig, a curl part can be processed with a small force compared with the case where it is not heated. As the force required for machining decreases, the load on the sleeve on the mandrel is reduced. When the sleeve is taken out of the mandrel after manufacture, the operation can be easily performed, thereby simplifying the configuration of the device.

At least two of the plurality of curl processing apparatuses may be configured to heat the processing jig and press the projecting portion of the sleeve, and out of these heated processing jig, the downstream processing jig of the upstream side processing jig of the conveying path. This temperature may be set low. In general, in the case where the processing of the curl portion for the sleeve is divided into a plurality of processes, the bending habit is attached to the sleeve in the subsequent step, so that the processing becomes easier than the previous step. Thus, by lowering the heating temperature of the processing jig in the later step as described above, the influence of heat on printing of the sleeve can be minimized without affecting the workability of the curl portion.

The curl processing apparatus arrange | positioned at the most upstream side of the said conveyance path | route among the said some curling apparatus may be comprised so that it may press on the said protrusion part of the said sleeve, rotating the said processing jig.

In this case, by rotating the processing jig in the first process having the greatest resistance to the processing of the curl portion, it is not necessary to heat the processing jig, or the heating temperature can be lowered. Thereby, the burden of heat to a sleeve can be reduced. In the case of applying a processing material such as a silicone liquid to the sleeve in preparation for curl processing, the processing material can be uniformly expanded around the sleeve by the rotation of the processing jig.

The blank supply device of the sixth invention is a blank supply device for conveying a fan-shaped blank for forming a sleeve of an insulated container to just below a mandrel having a tapered shaft body, wherein one end of the blank to be joined is the mandrel. The first conveying apparatus conveyed in the state supported in parallel with the conveyance direction set to the center line direction of the adhesive agent, The adhesive agent applying apparatus which apply | coats an adhesive agent to the lower surface side of the said one end part of the said blank conveyed by the said 1st conveying apparatus, The said adhesive agent And a reversing apparatus for rotating the blanks to which the blank is coated is rotated about a rotation axis extending in a direction orthogonal to the conveying direction and inverting them up and down, and for conveying the inverted blanks in a symmetrical attitude with respect to the centerline of the mandrel. 2 conveying apparatuses are provided.

According to this blank supply device, since the inverting of the vertical direction is applied to the operation of the blank after application of the adhesive, it takes time for the blank to reach the bottom of the mandrel. As a result, excess moisture of the adhesive applied to the blank is evaporated to obtain an optimum adhesive strength. As a result, the incidence rate of product defects due to lack of adhesive strength is reduced. Since an adhesive agent is apply | coated to the lower surface side of a blank, there exists also an advantage that roller row etc. can be comprised easily rather than applying from an upper surface side. Since the conveyance directions of a 1st conveyance apparatus and a 2nd conveyance apparatus become parallel with the centerline of a mandrel, a blank supply apparatus can be laid out with respect to the centerline of a mandrel.

The reversing apparatus may include a pair of wheels that can pivot around the rotation axis, and slits that can accommodate the blanks sent from the first transport device may be formed in each of the pair of wheels. Moreover, the said 2nd conveying apparatus may take out the said blank from the said slit, and may convey it to just under the said mandrel.

In this case, the blank can be easily reversed by using the rotation of the wheel. Since the blank can be moved inside the slit, it is also possible to use gravity to provide an opportunity to modify the posture of the blank.

The pair of wheels may be arranged symmetrically with respect to the center line of the mandrel, in which case it is preferable that the distances from the rotational axis to the ends of the inner peripheral side of the slit of each wheel are equal to each other. According to such a structure, when the blank accommodated in a slit is lifted with rotation of a wheel, the blank is trimmed in the radial direction of a wheel at the inner peripheral side edge of a slit. Thus, the blank can be positioned symmetrically with respect to the centerline of the mandrel.

In each of the pair of wheels, a plurality of slits may be formed at regular intervals in the circumferential direction of the wheel. Accordingly, a plurality of blanks to which the adhesive is applied can be sequentially accommodated in the wheel and dried to an appropriate degree.

The rotation direction of the wheel may be set so that the blank accommodated in the slit of the wheel from the first conveying device is also lifted from the conveying surface by the first conveying device and sent to the second conveying device side. Thereby, the blank accommodated in the slit can be turned upside down by being rotated by approximately 180 ° without falling from the wheel.

Another blank supply apparatus of the sixth invention is a blank supply apparatus for conveying a fan-shaped blank for forming a sleeve of an insulated container to just under a mandrel having a tapered shaft body, wherein one end of the blank to be joined is The 1st conveying apparatus conveyed in the state supported in parallel with the conveyance direction set to the center line direction of a mandrel, the adhesive agent applying apparatus which apply | coats an adhesive agent to the said one end part of the said blank conveyed by the said 1st conveying apparatus, and the said adhesive agent are And a bypass device for bypassing the coated blank with respect to the conveyance direction by the first transport device, and a second transport device for receiving the blank from the bypass device and transporting the blank directly below the mandrel.

According to this blank supply device, the excess moisture of the adhesive evaporates while the blank is bypassed in the bypass device.

Also in the said blank supply apparatus, the said bypass apparatus may be provided with a pair of wheel which can turn around the rotation axis extended in the direction orthogonal to the conveyance direction of the said 1st conveying apparatus, and each said pair of wheels has the said 1st The slit which can accommodate the said blank sent from a conveying apparatus may be formed. Moreover, the said 2nd conveying apparatus may take out the said blank from the said slit, and may convey it to just under the said mandrel.

The sleeve discharge device of the sixth invention is a sleeve discharge device that separates the sleeve wound on the tapered shaft portion of the mandrel from the mandrel, by pressing a roller in rotation to contact the sleeve on the body portion, and the small diameter side of the body portion. And a sleeve support having a roller mechanism for escaping the sleeve from an end portion and a sleeve receiving portion for receiving the sleeve taken out by the roller mechanism from an inner circumferential side thereof.

According to this sleeve discharge device, it is not necessary to take out the outer circumference of the sleeve discharged from the mandrel, and there is no fear of damaging the printing of the sleeve outer circumference. Even if the sleeve part is loosely inserted in the inner circumference of the sleeve, the sleeve can be sufficiently supported, so that the load on the sleeve can be reduced by lowering the rotational speed of the roller. This also reduces the risk of damaging the sleeve.

The sleeve support may be rotatable around a predetermined rotation axis, and a plurality of sleeve receiving portions may be formed around the rotation axis at regular intervals. In this case, the sleeve can be efficiently recovered by rotating the sleeve support to receive the sleeve sequentially.

When manufacturing the above-mentioned heat insulation container, processing of the rib wire which reinforces a container line | wire and a container body which show the proper position of injections, such as hot water, or processing the curl part of a container main body into the shape suitable for adhesion of a film-shaped cover material, etc. Various processes are required, and development of the apparatus which can handle those series of tasks efficiently is desired.

A 7th object of this invention is to provide the apparatus which can manufacture the above-mentioned heat insulation container efficiently, and the inspection apparatus suitable for the manufacturing apparatus.

In order to achieve this object, 7th invention includes the manufacturing apparatus and inspection apparatus of the heat insulation container demonstrated below.

That is, the manufacturing apparatus of the heat insulation container of 7th invention is a manufacturing apparatus which manufactures a heat insulation container by combining a sleeve with the outer periphery of a container main body, Comprising: The curl receiving member which receives the curl part formed in the edge part of the said container main body, A container support having a sidewall receiving member for receiving a sidewall (body portion) from the inside thereof, a curl processing device for pressing and deforming the curl portion of the container body to the curl receiving member, and the sidewall of the container body to the sidewall. A rib processing apparatus for pressing and deforming the receiving member, an adhesive applying apparatus for applying an adhesive to the outer circumference of the container body subjected to the processing by the curl processing apparatus and the rib processing apparatus, and the container body to which the adhesive is applied. The sleeve supply apparatus which covers the said sleeve in the outer periphery is provided.

According to this manufacturing apparatus, since the processing of the curl part of a container main body, the process, such as a rib to a side wall, and the joining of the container main body and a sleeve which received those processes continue in the same apparatus, a heat insulation container can be manufactured efficiently. have.

The manufacturing device may be provided with a sleeve alignment device for pushing the sleeve supplied from the sleeve supply device toward the container body supported on the container support. In this case, a sleeve can be attached to the container main body at the correct position, and both can be reliably joined.

The said manufacturing apparatus may be provided with the combination inspection apparatus which inspects the quality of the combination of the said container main body and the said sleeve after the process by the said sleeve alignment apparatus. In this case, a combination failure of the sleeve can be detected and appropriate measures can be taken.

The said manufacturing apparatus may be provided with the sleeve inspection apparatus which inspects the quality of shaping | molding of the said sleeve after the process by the said sleeve alignment apparatus. In this case, a poor molding of the sleeve can be detected and appropriate measures can be taken.

The said manufacturing apparatus may be equipped with the conveying apparatus which conveys the said container supporter along a predetermined conveyance path, and the said curl processing apparatus, the said rib processing apparatus, the said adhesive agent application apparatus, and the said sleeve supply apparatus are installed along the said conveyance path | route. You may be. In this case, the curl processing apparatus, the rib processing apparatus, the adhesive applying apparatus, and the sleeve supply apparatus may be arranged so as not to interfere with each other in the case of conveyance, so that the processing by the respective apparatuses can be efficiently cooperated.

The other manufacturing apparatus of 7th invention is a manufacturing apparatus which manufactures a heat insulation container by combining a sleeve with the outer periphery of a container main body, The container support body which supports the said container main body in the state which turned up-down, and the said support supported by the said container support body A sleeve supplying device for covering the sleeve from above the container body on the outer circumference of the container body, and a sleeve fitting device for pushing the sleeve covered with the container body toward the container body, wherein the sleeve fitting device includes the container body. A jig body having a fitting jig opposed to the upper end of the sleeve covered with a jig, a jig driving means for driving the fitting jig toward the container support, wherein the jig main body has a press-fitting portion capable of contacting an upper end of the sleeve; Engaging and engaging the sleeve prior to indentation of the sleeve by a negative A centering member is disposed to radially displace the sleeve so as to be centered with the container body, and the centering member is installed coaxially with respect to the jig body and movable in the press-fit direction of the sleeve. The center circumferential surface of which the diameter decreases toward the sleeve side is formed on the outer circumference of the end portion opposite to the sleeve of the member.

According to this manufacturing apparatus, the sleeve covered on the outer periphery of the container main body can be displaced in the radial direction of the container main body by the center bent surface of the centering member, and centered with the container main body, and can be pushed to the container main body side. This reduces the possibility that the sleeve is pushed in with the center of the sleeve and the container body staggered, resulting in poor manufacturing. Since the centering member is coaxially provided with respect to the jig main body of the centering jig, the centering member can be guided smoothly with respect to the jig main body, and the certainty of the centering action can be improved.

Another manufacturing apparatus of the seventh invention is a manufacturing apparatus for manufacturing a heat insulation container by combining a sleeve on the outer circumference of the container body, the container supporting device having a rotating body rotatable about an axis of the container body while supporting the container body; And an adhesive applying device having nozzle means for ejecting an adhesive toward the outer circumference of the container body supported on the container support, wherein the adhesive applying device has a range of adhesion between the nozzle means and the sidewall of the container body. Determination that judges whether or not the spouting state of the adhesive is in accordance with the ratio of the image pickup means for shooting the image of the shooting range set in between and the area of the gradation corresponding to the adhesive in the image of the shooting range. Means were laid.

According to this manufacturing apparatus, an adhesive can be supplied to the outer periphery of a container main body to every corner along the circumferential direction by spraying an adhesive agent on the outer periphery, rotating the container main body supported on the rotating body. When the amount of the adhesive discharged from the nozzle means is excessive or excessive, or the amount is appropriate but the discharge direction is inappropriate, the ratio of the gradation region corresponding to the adhesive in the image of the shooting range is abnormal. For this reason, it is possible to reliably detect a poor supply of the adhesive and take appropriate countermeasures.

An inspection device according to a seventh aspect of the invention is an inspection device for inspecting an insulation container in which a sleeve is combined with an outer circumference of the container body, the container having a rotating body rotatably supported around its axis in a state in which the insulation container is inverted up and down. The change of the height of the upper end part of the said heat insulation container is detected in the predetermined position around the said container support in cooperation with the support, the rotation drive means which rotationally drives the said rotating body, and the said rotating body, and the information according to the detection result Height information detecting means for outputting the information, and determining means for determining the quality of the combination according to the information output by the height information detecting means.

According to this inspection apparatus, when the sleeve is improperly covered with the container body, the sleeve is placed on a part of the container body, and the height of the container body is changed from the normal value at the mounted portion. By detecting this change in accordance with the information from the height information detecting means during rotation, it is possible to reliably detect the combination failure of the container body and the sleeve, and take appropriate measures.

The height information detecting means has a light emitting portion and a light receiving portion disposed to face each other with an upper end of the heat insulating container supported on the container support, and irradiates inspection light having a predetermined width from the light emitting portion to the light receiving portion. You may output the signal according to the light reception amount of the said inspection light from the said light receiving part. In this case, when the height of the heat insulating container changes, the amount of blocking the inspection light at the upper end of the heat insulating container increases or decreases, thereby causing a change in the output signal from the light receiving portion.

The inspection apparatus includes distance information detecting means for detecting a change in distance from a predetermined position around the vessel holder to the outer circumference of the sleeve of the heat insulating container in association with driving of the rotating body, and outputting information according to the detection result; Molding determining means for determining whether the sleeve is molded or not may be provided in accordance with the information output by the distance information detecting means. In this case, if the sleeve is distorted due to a defect or the like of the joined portion, the distance information detecting means detects a change in distance due to the distortion. Therefore, it is possible to reliably detect the molding failure of the sleeve and take appropriate measures.

As mentioned above, when attaching a lid | cover material to the curl part of a heat insulation container opening end, the process of pressing and crushing the circumference | surroundings of the curl part simultaneously is performed, but the process is only practical only in a container with a comparatively small diameter. If the curl portion of a container having a large diameter (about 140 mm in diameter) is to be pressed flatly and crushed in the same manner for use on an instant noodles, a very large press force is required, and it is difficult to be practically used. Furthermore, when the press force is large, each part of the press apparatus needs to be strengthened, and as a result, the cost of the apparatus increases.

An eighth object of the present invention is to provide a processing apparatus and a processing method capable of processing a curl portion of a container into a shape suitable for adhesion of a lid member with a relatively small force.

In order to achieve this object, the processing apparatus of the container according to the eighth aspect of the present invention is a press member capable of contacting a part of a curl portion formed at an end edge of the container, and a curl receiving member provided to face the press member with the curl portion interposed therebetween. Press driving means for driving the press member or the curl receiving member toward the curl portion so that the curl portion is fitted between the press member and the curl receiving member, and the press member and the curl receiving member It is provided with the rotation drive means which rotationally drives the said press member or the said container so that the position in which a curl part may be fitted may change in the circumferential direction of the said container.

According to this processing apparatus, since only a part of a curl part is fitted by a press member and a curl receiving member, a curl part can be processed to a desired shape with a small force compared with the case where the whole curl part is pressed simultaneously and crushed. By the rotation of the press member or the container, the machining position with respect to the curl portion is changed in the circumferential direction, and the curl portion is processed into a desired shape over its entire circumference.

The curl receiving member may be formed to receive the curl portion over its entire circumference. In this case, the curl portion of the container can be stably supported by the curl receiving member.

The processing apparatus may include a container supporter for supporting the container, and the container supporter may be provided with a rotating body rotatable around an axis of the container while supporting the container. Moreover, the said curl receiving member may be provided on the said rotating body, and the said rotation drive means may rotationally drive the said rotating body. In this case, the container can be rotated around the axis by applying rotation to the rotating body of the container support while supporting the container in a constant posture. By using this rotation, processing other than a curl part can also be performed.

The rotation drive means may have a drive wheel in contact with an outer circumference of the rotating body, and a drive source for rotationally driving the drive wheel. In this case, the container can be rotated only by bringing the driving wheel into contact with the rotating body. Moreover, transmission of rotation to a container can be interrupted only by removing a drive wheel from a rotating body.

The press member may be a roller rotatable around an axis extending in the radial direction of the container. In this case, the frictional resistance when the curl of the press member and the container is relatively rotated becomes small, and the curl can be smoothly processed.

In the said processing apparatus, when the said curl part is pushed in by the said press member and the said curl receiving member, the said press member or a curl receiving member is displaced in the direction which falls from the said curl part in response to the pressing force supplied from the said press drive means. You may make it possible. In this case, even if a step occurs in the curl portion due to the joining of the container, the press member or the curl receiving member escapes in accordance with the step, so that the step portion is not excessively pressed and crushed.

As the press driving means, an air cylinder may be provided. In this case, since the air trapped in the air cylinder acts as a cushion, the press member or the curl receiving member driven in the air cylinder can be displaced according to the step of the curl portion.

The side wall receiving member which receives the side wall (body part) of the said container over the perimeter from the inner surface side may be provided on the said rotating body, The side of the said container support body opposes the said side wall receiving member, and the circumferential direction of the said side wall A mold pressing member which can come into contact with a part of the mold and mold driving means for driving the mold pressing member toward the side wall may be provided. In this case, the side wall of the container can be processed along the circumferential direction by inserting the side wall of the container into the mold pressing member and the side wall receiving member in conjunction with the processing of the curl portion.

The contact position between the press member and the curl portion may be set on the radially opposite side of the container with respect to the contact position between the mold pressing member and the side wall. In this case, a container rises from the support according to the processing action by the press member or the mold pressing member, and there is no fear that processing failure occurs.

In the said processing apparatus, you may provide the fall prevention means which presses the bottom side of the said container toward the said container support opening. In this case, a container rises from the support according to the processing action by the press member or the mold pressing member, and there is no fear that processing failure occurs.

The container may be a heat-insulating container having a container body having the curled portion and a sleeve covered on the outer circumference thereof, and the processing of the curled portion by the press member and the curl receiving member is performed with respect to the container body before mounting of the sleeve. May be. In this case, the curl can be processed without disturbing the sleeve.

In the processing method of the eighth aspect of the invention, a part of the curl portion formed at the end edge of the container is inserted into the press member and the receiving member, and the insertion position is gradually changed in the circumferential direction of the curl portion so that the entire circumference of the curl portion is in a predetermined shape. It is processing.

According to this processing method, the curl part can be processed into the desired shape over its periphery with a small force compared with the case where the whole curl part is simultaneously pressed and crushed for the same reason as the said processing apparatus.

Still other objects, features, and effects of the present invention will become apparent from the embodiments of the present invention described below.

BRIEF DESCRIPTION OF THE DRAWINGS The figure which shows the heat insulation container of 1st Embodiment which concerns on this invention.

Fig. 2 shows a heat insulation container according to a second embodiment of the present invention.

3 is a bottom view of the cup body provided in the heat insulating container of FIGS. 1 and 2;

4 is a dimensional view of a sample of a first embodiment of the thermal insulation container of FIG.

Fig. 5 shows a heat insulation container with a handle piece in a third embodiment according to the present invention.

FIG. 6 is an exploded view of a blank of the sleeve used in the thermal insulation container of FIG. 5; FIG.

Figure 7 is an enlarged view of a handle piece formed on the blank of Figure 6;

FIG. 8 is a view showing a state of use of the heat insulation container with a handle piece of FIG. 5; FIG.

FIG. 9 is a dimensional view of an example sample of a heat insulation container with a handle piece in FIG. 5; FIG.

Fig. 10 shows a heat insulation container according to a fourth embodiment of the present invention.

FIG. 11 is a view showing a manufacturing process of the heat insulation container of FIG. 10; FIG.

Figure 12 is an enlarged cross sectional view of the inwardly curled portion of the sleeve of Figure 10;

13A to 13C show various shapes of the inwardly curled portion formed in the sleeve of FIG.

14 (A)-(C) are views showing still another shape of the inward curl portion formed in the sleeve of FIG.

Fig. 15 is an enlarged cross sectional view of a threaded portion formed in the cup body of Fig. 10;

Fig. 16 is an enlarged cross sectional view showing the vicinity of an adhesive portion between a cup body and a sleeve;

Fig. 17 is a sectional view showing another example in which the lower end of the sleeve is positioned above the thread heel;

Fig. 18 is a sectional view showing the shape of the inward curl portion of the sleeve.

Figure 19 is a plan view of a portion of the blank for forming the sleeve.

Fig. 20 shows a heat insulation container according to a fifth embodiment of the present invention.

FIG. 21 is a view showing a manufacturing procedure of the heat insulation container of FIG. 20; FIG.

Fig. 22 is an enlarged cross sectional view of the curl portion of the cup body constituting the heat insulating container of Fig. 20;

Figure 23 is a plan view of the apparatus for making the sleeve of Figure 20;

FIG. 24 is a side view from arrow XXIV direction of the manufacturing apparatus of FIG. 23; FIG.

FIG. 25 is an enlarged view of part XXV in FIG. 23; FIG.

FIG. 26 shows a mandrel and main sealing device installed in the manufacturing apparatus of FIG. 23; FIG.

FIG. 27 is a side view of the first half of the blank supply apparatus installed in the manufacturing apparatus of FIG. 23; FIG.

Figure 28 is a plan view of the first half of the blank supply apparatus.

FIG. 29 is a sectional view taken along a line XXIX-XXIX in FIG. 27; FIG.

30 is a side view of the second half of the blank supply device;

Figure 31 is a plan view of the second half of the blank supply apparatus.

FIG. 32 is a view showing details of a winding apparatus installed in the manufacturing apparatus of FIG.

FIG. 33 shows the main parts of an auxiliary sealing apparatus installed in the manufacturing apparatus of FIG. 23; FIG.

FIG. 34 is a view showing details of a curl processing device installed in the manufacturing device of FIG.

FIG. 35 shows a modification of FIG. 34; FIG.

FIG. 36 shows details of the sleeve ejecting apparatus installed in the manufacturing apparatus of FIG. 23; FIG.

37 is a plan view of the sleeve ejecting device.

Fig. 38 shows an example of the curl portion of the sleeve.

Figure 39 is a plan view of the paper cup manufacturing apparatus of Figure 20;

Figure 40 is a side view of the device from the direction of arrow XXXX in Figure 39;

Figure 41 is a side view of the device from the arrow XXXXI direction of Figure 40;

FIG. 42 is a sectional view of the cup supply apparatus installed in the apparatus of FIG. 39; FIG.

Fig. 43 is a plan view of the cup feeding device of Fig. 42;

FIG. 44 shows the principal parts of a processing apparatus provided in the apparatus of FIG. 39; FIG.

Figure 45 is a rear view from the arrow XXXXV direction in Figure 44;

Fig. 46 shows the process of processing ribs on the side wall of the cup body by the apparatus of Fig. 44;

FIG. 47 shows a state in which the curl portion of the cup main body is processed by the processing apparatus in FIG. 44; FIG.

Fig. 48 shows an example of processing the curl portion of the cup body using a plurality of press rollers.

FIG. 49 shows the main parts of a pool attachment device installed in the device of FIG. 39; FIG.

50 shows the main parts of a sleeve feeding device installed in the device of FIG. 39;

FIG. 51 shows an overall view of a sleeve fitting device installed in the device of FIG. 39; FIG.

Fig. 52 shows the main parts of the apparatus of Fig. 51;

FIG. 53 is a diagram showing the configuration of an inspection apparatus installed in the apparatus of FIG. 39; FIG.

FIG. 54 shows the structure of the discharge device installed in the device of FIG. 39; FIG.

FIG. 55 is a side view of the discharge device from the arrow XXXXXV direction in FIG. 54; FIG.

<Description of the code | symbol about the principal part of drawing>

10, 20: heat insulation container

10A, 20B, 42, 62: paper cup body

10B, 20A, 43, 63: sleeve

11, 31, 42a, 62a: trunk portion (side wall)

12, 32, 42b, 62b: bottom part

13, 13 ', 34, 35: horizontal rib

14, 33: upper (outward) curl

15, 21: side wall

16, 22: inward curl

17: heat insulation member

18: thread

20A ', 43', 63 ': Blank

23: handle

1010: sleeve manufacturing apparatus

1020, 2050: Sleeve Feeder

1030: winding device

1040: main sealing device

1070A, 1070B, 1070C: Curl Processing Equipment

2020: Cup Feeder

2030A, 2030B: Processing Equipment

2040: Pool Attachment

2070: Inspection device

2080: discharge device

1 shows a heat insulation container according to a first embodiment according to the present invention, and shows a side on the right side and a cross section on the left side, respectively, from the center line of (A) to (C) of each drawing. The same applies to Figs. 2 (A) to (C).

The heat insulation container 10 of FIG. 1 is comprised combining the paper cup main body 10A shown in FIG. 1 (A), and the paper sleeve (paper tube) 10B shown in FIG. 1 (B). The cup main body 10A has a cylindrical trunk | drum (side wall) 11 which the upper part opened, and the bottom part (bottom plate) 12 which blocks the lower part of the trunk | drum 11. As shown in FIG. A polyolefin resin layer is formed on at least the inner surface of the cup main body 10A. The sleeve 10B is attached to the cup main body 10A so as to form a gap between the outer peripheral surface of the trunk portion 11. As shown in Fig. 1C, the heat insulating container 10 has an outer diameter of the opening of the upper end of the trunk portion 11 larger than the height, and has a shape close to a bowl, rice bowl, bowl, and the like.

In order to increase the rigidity of the cup main body 10A, as shown in Fig. 1A, the body portion 11 of the cup main body 10A has a horizontal rib 13 protruding outward or a horizontal rib protruding inward ( 13 ') is formed at least one. A plurality of horizontal ribs 13 or horizontal ribs 13 'may be formed. The horizontal rib 13 and the horizontal rib 13 'may coexist in the same cup main body 10A.

The upper curl part 14 outward is formed in the upper end of the cup main body 10A. At the lower end of the cup main body 10A, the bottom part 12 and the trunk | drum 11 are mutually wound and tightened, and are joined.

In addition to the strength reinforcement of the cup main body 10A, the upper curl portion 14 provides a heat seal surface when joining a lid member (not shown). The cross-sectional shape of the upper curl part 14 is not limited to a circular shape, but may be a shape which was crushed in the vertical direction.

As shown in Fig. 1B, the sleeve 10B has an inverted trapezoidal sidewall 15. As shown in Figs. The inward curl 16 is formed at the lower end of the sleeve 10B.

By attaching the sleeve 10B to the above cup main body 10A, the heat insulation space A is formed between them.

The inner circumference of the inward curl portion 16 of the sleeve 10B attached to the cup main body 10A abuts against the lower end of the trunk portion 11 of the cup main body 10A. The upper end of the sleeve 10B is in direct contact with the upper end of the torso 11 of the cup body 10A or via the heat insulating member 17 as shown in FIG. Details of the embodiment of FIG. 2 will be described later. To prevent the sleeve 10B from coming off, the cup body 10A and the sleeve 10B are adhesively fixed at any one of their upper and lower contact portions.

In the above-mentioned heat insulation container 10, the horizontal rib 13 which protrudes outward or the horizontal rib 13 'which protrudes inwardly winds around the outward curl part 14 and the bottom part 12 of the trunk | drum 11 Together with the tightening part, it plays an important role in reinforcing the strength of the cup main body 10A.

What is necessary is just to determine the number of ribs 13, the position, height or depth, width | variety, cross-sectional shape, etc. which are formed in consideration of the size of cup main body 10A, the rigidity of cardboard material, etc. One rib 13 or 13 'may be formed in the position which functions as a line indicating the appropriate level of the hot water supply quantity with respect to the cup main body 10A, ie, the graduation line (Peter line) of hot water.

In the heat insulation container 10 of FIG. 1, the horizontal rib 13 protruding outward plays an important role in the formation of the heat insulation space A. As shown in FIG. When the side wall (body portion 11) of the container 10 is gripped by hand, the horizontal ribs 13 can support the side wall 15 of the sleeve 10B to limit the warping inward of the side wall 15. Because there is.

In a state in which the sleeve 10B is combined with the cup main body 10A, the ribs 13 protruding outward from the sleeve 10B may contact or may be separated. In the case of not contacting, the heat insulation space A is widened, and air is convexed up and down in the heat insulation space A, and heat is easily dissipated. Therefore, when the trunk portion 11 is gripped by hand after the hot water supply, the side wall 15 of the sleeve 10B is slightly bent inwardly, but the sleeve 10B and the rib 13 are held before the container 10 is gripped by hand. Compared with the case where is in contact with each other, the surface temperature of the side wall 15 is lowered and is easier to grip.

Fig. 2 shows a heat insulation container according to a second embodiment to which the present invention is applied.

When a user grips a bowl-shaped bowl after hot water supply or after microwave heating, it is common to hold the upper half of a container trunk so that the finger of both hands may support from both sides from both sides. In the heat insulation container of FIG. 2, the effect and stabilization of the heat insulation of the part which a user's finger touches are aimed at. That is, in the heat insulation container 10 of FIG. 2, the heat insulation member 17 is wound up and adhere | attached on the trunk part 11 upper part of 10 A of cup main bodies, and the sleeve 10B is attached from it.

For the heat insulating member 17, for example, a piece of cardboard which is corrugated like a center paper of corrugated cardboard, and convex and concave portions are alternately arranged in the longitudinal direction, or a piece of cardboard having a predetermined width having an uneven shape formed by embossing can be used. have.

When the heat insulation member 17 is arrange | positioned between 10 A of cup main bodies, and the sleeve 10B, the heat insulation improvement and stabilization of the upper part of the trunk body in which the heat insulation space A becomes narrow can be aimed at. Therefore, after heat-cooking by hot water supply or a microwave oven, the heat insulation container 10 can be removed by hand in peace. The heat insulation container 10 of FIG. 2 is especially effective when supplying hot water to the upper part of a heat insulation container.

In order to prevent the sleeve 10B mounted on the cup main body 10A from being pulled out, the inner circumference of the inwardly curled portion 16 and the cup main body 10A are adhered to each other, or the inner and outer surfaces of the heat insulating member 17 are attached to the cup main body (10A). 10A) and sleeve 10B, respectively.

3 is a bottom view of the cup body 10A used in the heat insulating container of FIG. 1 or FIG.

As described above, the horizontal rib 13 or 13 'is formed in the cup main body 10A so as to circulate the trunk portion 11 at a predetermined position of the trunk portion 11 as shown in FIG. The horizontal ribs 13 and 13 'can be formed so that the trunk | drum 11 may be circulated continuously as shown to FIG. 3 (A). As shown in FIG. 3B, the horizontal ribs 13 and 13 ′ may be formed so as to circumscribe the trunk portion 11 while being interrupted by the cutout portion 19.

In the case of the heat insulating container 10 of FIG. 1, if the number of horizontal ribs 13 is constant, the sleeve 10B is compared with the case of forming the continuous ribs 13 when the ribs 13 are intermittently circulated. Slightly falls in terms of preventing bending of the side wall 15. However, the adiabatic space becomes wider, the adiabatic space communicates up and down, and the movement of the heated air in the entire adiabatic space is easily performed. Therefore, the temperature rise becomes homogeneous, and as a result, an effect of achieving good thermal insulation is obtained. In the case where the ribs 13 are to be interrupted, it is preferable to divide one rib 13 into 4 to 8 parts with respect to the entire circumference of the trunk portion 11. It is preferable that the ratio which the notch part 19 occupies with respect to the front periphery of the trunk part 11 is 30% or less.

3, the threaded portion 18 is shown. The inward curl portion 16 functions to fill the space of the threaded portion 18 (lower end opening of the insulation space A). Therefore, there is no fear that dust or water may enter from the threaded portion 18, and a hygienic heat insulating container can be provided.

According to the structure of the heat insulation container 10 mentioned above, the paper-shaped heat insulation container of the bowl type which has an opening diameter of 120-200 mm can be provided using the same cardboard material as the conventional paper heat insulation container. The inner volume is full and can be set within the range of 600 to 1500 cc.

The cardboard material used for forming the thermally insulating container 10 may be one having substantially the same basis weight as in the prior art even though its contents are increased. That is, the cup paper of a basis weight of 190-450 g / m <2> can be used for shaping | molding of the cup main body 10A. In addition, a cardboard such as a card system or a coat ball system having a basis weight of 230 to 450 g / m 2 can be used for molding the sleeve 10B. If the base paper basis weight of the sleeve 10B is less than this limit, the rigidity of the sleeve 10B will fall, and curvature may become large too much at the time of high heat, and there exists a possibility that required heat insulation may not be obtained. Moreover, when the base paper basis weight of the sleeve 10B exceeds the said limit, rigidity will become high, but since the processing suitability of the inwardly curling part 16 deteriorates and material cost becomes high, it is unpreferable.

The raw material of the sleeve 10B may be subjected to a resin coat or a resin impregnation treatment. In this case, the heat insulation container 10 can be made to increase the rigidity, compression resistance, collapse resistance, etc. of the whole heat insulation container 10, and to protect a content from the external force applied at the time of logistics. Can be.

In general, polyolefin-based resin layers such as low-density polyethylene resins, medium-density polyethylene resins, high-density polyethylene resins, linear low-density polyethylene resins are formed by extrusion coating on the inner surface of the cup paper in a range of 20 to 80 µm. The polyolefin resin layer not only prevents the penetration of the contents into the cardboard (material of the cup main body 10A), but also improves the protection adequacy of the contents, and improves the cup formability at the bottom, the curl, and the body bonding portion, and the cover material (not shown). The sealing property by heat sealing in the upper curl part of the (not shown) is also improved.

In the above-mentioned heat insulation container 10, there is no unevenness | corrugation in the side wall (outer peripheral wall), and since the inward curl part 16 of the sleeve 10B forms the moderate arc at the bottom part of a container, appearance and designability are improved. .

The side wall surface of the heat insulation container 10 is flat, and the freedom degree of printing to the sleeve 10B is high. Not only well-known printing such as offset, gravure, flexo, but also post-printing processing such as various overcoating, gold foil coating, embossing and the like can be freely performed on the sleeve 10B. Therefore, together with the excellent design mentioned above, the outstanding plastering effect can be exhibited.

By forming an overcoat layer such as an OP varnish on the side wall surface of the sleeve 10B or the surface of the inwardly curled portion 16, it is possible to modify the surface so that it is difficult to wet and become dirty.

In general, when hot water comes into contact with the plastic surface or the plastic layer on the inner surface of the container, sufficient consideration is that elution of monomers remaining in the plastic, heavy metals used in the polymerization catalyst, and other additives is likely to occur. This is a problem that food contamination occurs. It is natural to configure the container so that the amount of these leaching does not exceed the standard set by the Food Sanitation Law, but even a very small amount below this value is, for example, bisphenol A eluted from polycarbonate resin which is frequently used for feeding bottles and school tableware, and foaming. It is desirable to avoid the use of resins that elute environmental hormones (exogenous endocrine disrupting chemicals) that have been pointed out of risks and concerns of disrupting endocrine organisms, such as styrene oligomers eluting from polystyrene containers.

In the heat insulation container 10 mentioned above, since no additive resin is again selected from such a low polyolefin resin, it is used for the inner coat, and there exists security.

Next, the manufacturing method of the heat insulation container 10 of FIG. 1 or FIG. 2 is demonstrated.

First, the conical trapezoidal trunk portion 11 is molded from a fan-shaped blank by a paper cup molding machine, and the bottom portion 12 is formed by winding the lower portion of the trunk portion 11 with a bottom plate. Moreover, the upper curl part 14 of an outward direction is shape | molded at the upper end part of the trunk part 11. Next, at the predetermined position of the trunk portion 11, horizontal ribs 13 and 13 'protruding in the outward or inward direction are molded to manufacture the cup main body 10A.

The processing method of the rib 13 which protrudes outward can be performed inline or offline with respect to a cup molding machine. That is, the cup main body 10A after shaping | molding is inserted in the cavity of the metal mold | die whose part corresponded to the horizontal rib 13 is cut into groove shape previously, and rotates the cup main body 10A. In this state, the rotary roller is strongly pressed with the expander from the inside of the cup main body 10A toward the groove-shaped portion described above. Thereby, the rib 13 which protrudes outward is formed.

In that case, when the rotary roller is pressed over the entire circumference of the cup main body 10A, the continuously circulating rib 13 shown in Fig. 3A is obtained. When the rotary roller is pressed intermittently to the cup main body 10A, the rib 13 that intermittently turns as shown in Fig. 3B can be formed.

In the above molding method, it is necessary to take out the cup main body 10A from the cavity of a metal mold | die after the process of the rib 13. In FIG. 1 or FIG. 2, when the slope above the horizontal rib 13 is formed more gently than the slope below, the cup main body 10A can be easily removed from the cavity. The formation of the rib 13 can also be carried out by the throttling using a male and female type.

The rib 13 'in the heat insulation container 10 of FIG. 2 is formed in the following order. The cup main body 10A which completed shaping | molding inserts into the outer periphery of the mandrel which the part corresponded to the rib 13 'previously cut into groove shape. Next, while rotating the cup main body 10A with the mandrel, the rotary roller is pressed strongly from the outside of the cup toward the above-mentioned groove-shaped portion. Thereby, the rib 13 'which protrudes inward can be formed. The conical trapezoidal sleeve 10B is formed from a fan-shaped blank, and the inward curl portion 16 is formed at the lower portion thereof. When the sleeve 10B and the molded cup main body 10A are bonded to each other while being bonded at a position where they are in contact with each other, the heat insulating container 10 is obtained. The completed thermal insulation container 10 according to the present invention can be supplied to the user by stacking (stacking).

As an example sample of the heat insulation container 10 of FIG. 1, the two types of sample A and sample B shown in FIG. 4 were created according to the following specification. In addition, comparative example samples A 'and B' (not shown) of the same specification as Example sample A, B were prepared except the horizontal ribs 13 and 13 'being abbreviate | omitted.

Sample A

Specifications of the cup body 10A

Capacity ; 804.2 cc (when full)

499.7 cc (at 22.5 mm charge from top)

Opening diameter; 143.5 mmφ

Opening diameter; 135.0 mmφ

Bottom plate diameter; 115.2 mmφ

Height ; 72.1 mm

Number of horizontal ribs; 2

Top width of the horizontal ribs; 2 mm

Bottom width; 6 mm

Material composition; Polyethylene 25㎛ / Cup Paper 280g / ㎡

Specification of the sleeve 10B

Inward Curl Outer Diameter; 119.4 mm

Inward curl thickness; 2.6 mm

Upper diameter; 135.0 mm

Material composition; OP varnish / printing layer / coat ball 310g / ㎡

Sample B

Specifications of the cup body 10A

Capacity ; 1045.1 cc (when full)

659.5 cc (30.9 mm charge from top)

Opening diameter; 139.5 mmφ

Opening diameter; 131.0 mmφ

Bottom plate diameter; 101.2 mmφ

Height ; 105.0 mm

Number of horizontal ribs; 2

Top width of the horizontal ribs; 2 mm

Bottom width; 6 mm

Material composition; Polyethylene 25㎛ / Cup Paper 280g / ㎡

Specification of the sleeve 10B

Inward Curl Outer Diameter; 105.6 mm

Inward curl thickness; 2.6 mm

Upper diameter; 131.0 mm

Material composition; OP varnish / printing layer / coat ball 310g / ㎡

The above sleeve 10B is attached to the outer circumference of the above cup body 10A, and the contact portion of the bottom portion 12 is bonded with an acrylic emulsion type adhesive, and FIGS. 4 (A) and (B) Example sample A and sample B which have a side surface and a cross section shown in FIG. Further, Comparative Example Samples A 'and B' without the horizontal ribs 13 and 13 'were prepared, and Example Sample A, Comparative Example Sample A', and Example Sample B and Comparative Example Sample B ', respectively. The comparison was as follows.

Inject hot water at 95 ° C into 500cc for Samples A and A 'and 660cc for Samples B and B'.After 3 minutes, the upper part of each part of the body is gripped by both hands, and the external surface temperature is compared. did. As a result, it turned out that Example Samples A and B had less deformation | transformation than Comparative Example Samples A 'and B', and were excellent in heat insulation and easy to hold. Moreover, the tighter the trunk, the more intensely the sample side felt the heat.

According to the above-mentioned heat insulation container 10, although the outer diameter of the opening shape shape | molded using the cardboard material of the substantially same specification as before is a bowl shape larger than height, and even if it is larger in content than the conventional cup type, Supplying full hot water also prevents the deformation of the container to be less, thereby providing good heat insulation.

Therefore, it is possible to provide a variety of foods at the dining table by using hot water cooking or microwave cooking in each container as a tableware with a wide spout instead of a bowl or bowl, and it is also possible to make it fun and easy to eat. It enables the provision of barrier-free products to consumers, especially the elderly, the disabled and children.

Moreover, since the heat insulation container 10 has no unevenness | corrugation on a trunk outer wall, it has favorable designability and freedom of printing, it can match with the printing effect to a cover material with a wide spout, and can exhibit the outstanding promotional effect in front of a store.

From the polyolefin resin layer of the inner surface of the heat insulation container 10, there is no elution of suspicion substance, such as environmental hormone, seen in the expandable polystyrene used for the heat insulation container so far. The inward curl portion 16 fills the gap between the cup body 10A and the sleeve 10B at the bottom thread heel 8 to prevent dust or foreign matter from entering the body portion or absorbing liquid from the cardboard end surface. Contamination from the bottom can be prevented. Therefore, the safety and reliability regarding the sanitary surface can be improved.

Even if the amount of contents increases, the cardboard material having the same specification as the conventional one can be used, so that the increase in cost can be suppressed in terms of material cost and production, and a heat insulating container can be provided at a reasonable economic cost.

Since the heat insulation container 10 is discarded as a paper product after use, and it is easy to make it satisfactory, waste disposal property is favorable and recycling is possible, and it can contribute to reduction of environmental load.

FIG. 5 shows a heat insulation container according to a third embodiment according to the present invention, and shows the side on the right side and the cross section on the left side, respectively, from the center line of (A) to (C) in each drawing.

The heat insulation container 20 of FIG. 5 is comprised by combining the inverted trapezoidal paper sleeve 20A and the paper cup main body 20B. The cup main body 20B has a cylindrical trunk | drum 31 and the bottom part 32 which winds around a trunk | drum 31 and fastens and is fixed. Outward curling portions 33 are formed at the upper opening edge of the trunk portion 31, and horizontal ribs 34 protruding outwardly and horizontal ribs 35 protruding inwardly are formed in the trunk portion 31. . An adiabatic space is formed between the inner surface of the side wall 21 of the sleeve 20A and the outer surface of the trunk portion 31 of the cup body 20B. Polyolefin resin is coat | covered on the inner surface of 20 A of cup bodies. On the side wall 21 of the sleeve 20A, a pair of handle pieces 23 and 23 are formed so as to oppose each other. 5, only one handle piece 23 is shown. The outer diameter of the upper end opening part of the cup main body 20B is set larger than the height of the container 20.

Formation of the heat insulation space of the heat insulation container 20 is carried out in the horizontal rib 34 which protrudes in the outward direction formed in the trunk | drum 31 of the cup main body 20B, and the lower part of the sleeve 20A as shown in FIG. This is realized by the formed inward curling portion 22. However, it is not necessary that the side wall 21 of the sleeve 20A and the horizontal ribs 34 protruding outward contact with each other in an unattended state (without holding the container by hand and placing it on a table or the like).

The main role of the horizontal ribs 34 is in the reinforcement of the trunk portion 31 of the cup body 20. In addition, the horizontal rib 35 reinforces the trunk portion 31 and also performs a function of giving a target of an appropriate amount of hot water injected into the cup body 20.

6 is an exploded view of a blank for producing a sleeve 20A.

The blank 20A 'of the sleeve 20A is a fan blanking the cardboard as shown in FIG. The left and right both ends of the blank 20A 'are the body adhesion part N, and the lower end part becomes the curl shaping | molding part C of the inwardly curling part 22. As shown in FIG. Portions other than the curl molded portion C are portions that form the side wall 21 of the sleeve 20A.

The trunk bonding portions N of the blanks 20A 'are bonded to each other to form a reverse cone trapezoidal sleeve 20A. The blank 20A 'is blanked with a pair of handle pieces 23 and 23 partitioned off by the bend line 25 and the cut line 24, and they are positioned to face each other when molded into the sleeve 20A. . Moreover, the bending line 25 is formed along the arc of the blank 20A '.

7 is an enlarged view of the handle piece 23 on the blank 20A '.

Fig. 7A shows one embodiment of the handle piece 23. Figs. The handle piece 23 is a straight line or a straight line connecting two points p1 and p2 on an arc which extends at a certain distance with respect to the outer circumference of the blank 20A ', ie, the outer circumference of the blank 20A'. It is divided by the curved line 25 curved downward and the cutting line 24 which connects both ends p1 and p2 of the bending line 25, and curves below the bending line 25. . The handle piece 23 can be folded back to the outside by the bending line 25.

In addition, the connecting portion 26 is formed in the middle of the cut line 24.

The connecting portion 26 is assembled with the cup body 20B by forming the blank 20A 'into the sleeve 20A, and then attaching the handle piece 23 to the side wall 21 until the handle piece 23 is used. It is formed to be connected and fixed. The connection portion 26 preferably has a width of about 0.3 to 1.0 mm (when the thickness of the cardboard is 0.2 to 0.5 mm) so that it can be broken by a slight fingertip when using the handle piece 23. . In general, in the case of pulling the paper and cutting it finely, it is necessary to cut in the paper grain direction rather than in the direction perpendicular to the paper grain. Therefore, in the case where a plurality of connecting portions 26 are formed on one side of the perforated line 24, the closer the width direction of each connecting portion 26 is to the direction parallel to the direction of the paper grain shown by the arrow in the figure, It is desirable to increase the width. Thereby, the cutting force of each connection part 26 can be made uniform.

A notch 27 is formed around the lower portion of the handle piece 23. The notch 27 is used to cause the handle piece 23 in the formation of the handle piece 23. Notch 27 may be large enough to fit the user's fingertips or nails. Moreover, it is preferable that the notch 27 exists in the lowest part of the handle piece 23. As shown in FIG.

Fig. 7B shows another embodiment of the handle piece. In this embodiment, instead of the notch 27, a small bending line 25 ′ is formed around the lower portion of the handle piece 23. According to this structure, the lower part of the handle piece 23 can be easily bent according to the small bending line 25 ', and the whole handle piece 23 can be taken out by making the bent part the gripping piece.

It is preferable to form the arc part 24a which draws an arc in the edge part of the cutting line 24 so that it may return to the lower part of the handle piece 23 as shown in FIG.7 (B). Since the direction in which the end of the perforated line 24 extends is close to the direction parallel to the paper grain, the blank 20A 'is torn upward from the final ends p1 and p2 of the perforated line 24 when the handle piece 23 is pulled out. There is a risk of quality, and this concern can be solved by the addition of the arc portion 24a.

All of the above-described bent line 25, small bent line 25 ', cut line 24, connecting portion 26, and cutout 27 can be formed simultaneously with the blanking process of blank 20A'. Therefore, processing of these elements does not become a factor which raises the manufacturing cost of the heat insulation container 20. FIG.

In addition, most of the area of the blank 20A 'is printed before the blank 20A' is processed and functions as an information medium, but the printing effect or the design effect is largely hindered by the above processing of the handle piece 23. There is nothing to be done.

Fig. 8 shows the use state of the heat insulation container 20 with the handle piece.

Fig. 8A is a side view showing a state where the handle piece 23 of the heat insulation container 20 with a handle piece according to the present invention is raised.

As shown in Fig. 5, the handle piece 23 is formed on the inverted cone surface with the bending line 25 upward. Here, assuming that there is no double container without a space between the side wall 21 of the sleeve 20A and the trunk portion 31 of the paper cup body 20B, the handle piece 23 is raised from the bottom. A force is needed at the time, and wrinkles occur in the handle piece 23 that is produced. If a cardboard having a weak tear strength is used for the sleeve 20A, the cardboard is likely to tear at both ends of the bend line 25.

However, in the case of the heat insulation container 20 with the handle piece of FIG. 5, since there exists a space between the side wall 21 of the sleeve 20A, and the trunk | drum 31 of the cup main body 20B, the handle piece 23 is carried out. When taking out, the side wall 21 of the center part of the bending line 25 is deformed in the direction shown by the arrow in FIG. 8 (A), and can easily produce the handle piece 23 with a weak force. The bend line 25 is preferable at the point which is easy to open in the downward direction rather than the line which connects the shortest distance of two points p1 and p2 of the horizontal direction of an inverse cone surface. For example, in the case of a bending line having a length of 50 mm, it is preferable to bend downward about 0.5 to 2.0 mm at the center portion thereof.

When the handle piece 23 is produced along this bending line 25, as described above, the side wall 21 is deformed and the left and right sides of the handle piece 23 are deformed to be slightly lifted up, and as a result, the handle piece 23 is raised. Reference numeral 23 is held at a position approximately perpendicular to the side wall 21 as shown in Fig. 8A. When the handle piece 23 is pushed down, it can return to an original state (state which substantially coincides with the side wall 21 of 20 A of sleeves).

Fig. 8B is a perspective view showing a state immediately before heating cooking of the heat insulation container 20 with a handle piece.

The heat insulating container 20 can be preferably used anywhere in hot water cooking heating and microwave heating. In the case of the handle piece 23 shown in FIG. 7 (A), a fingertip or a fingernail is put into the notch 27 before heating cooking, and the handle piece 23 is lifted upwards. In the case of the handle piece 23 shown in FIG. 7 (B), prior to heating and cooking, the tip end portion of the handle piece 23 is folded in a bending curve 25 'to form a grip piece, and the grip piece is fingered. Pick it up and lift the handle piece 23 upward. The handle piece 23 lifted in this way may be hold | maintained substantially horizontally as shown in FIG. 8, and heat cooking may be performed in this state.

And in the case of hot water cooking heating, after opening the lid | cover material L once and supplying hot water, the lid | cover material L is closed again and it is left to stand for 3 to 4 minutes. In the case of microwave cooking, what is necessary is just to heat-cook with the cover material L slightly open.

After cooking, the food | stuff which was heated and cooked safely to a predetermined position can be conveyed for every container, without feeling a heat by holding the handle piece 23 with both hands.

In the case of using a conventional bowl-type container, it is necessary to transport the container with fingers across its edges, and there is a hygiene problem that a finger contacts food at that time. This problem is also eliminated when the handle pieces 23 are held and transported.

Then, the handle piece 23 may be prevented from slipping by a method of embossing the handle piece 23 in advance or by partially coating the slip inhibitor in advance.

In the heat insulation container 20 mentioned above, using the same thing as the cardboard material currently used for the heat insulation container made of paper, the bowl type paper heat insulation container which has an opening outer diameter of 120-200 mm (phi) range can be provided. In addition, the inner volume is full, it is applicable to the heat insulation container of 600-1500cc range.

The cardboard material used for molding the heat insulating container 20 can be used with a basis weight of about the same as the conventional one, although its contents are increased.

Usually, polyolefin resin layers, such as a low density polyethylene resin, a medium density polyethylene resin, a high density polyethylene resin, and a linear low density polyethylene resin, are extruded and formed in the inner surface of a cup base material in the range of 20-80 micrometers.

This polyolefin-based resin layer improves cup formability at the bottom, curl, and body adhesion, in addition to preventing penetration of the contents into the cardboard and improving the content protection adequacy, and at the upper curl of the lid member (not shown). The effect of making the sealing property by heat sealing also favorable is brought.

The base paper weight of the cup main body 20B is about 190-450 g / m <2>.

On the other hand, for shaping the sleeve 20A, cardboard such as a card system having a basis weight of 230 to 450 g / m 2 and a coat ball system can be used. If the basis weight is less than this limit, the stiffness of the sleeve 20A is insufficient, the warpage may become too large at high heat, and there is a fear that the necessary heat insulation may not be obtained. Moreover, when a basis weight exceeds the said limit, rigidity will become high, but since the processing suitability of the inwardly curling part 22 deteriorates and material cost becomes high, it is unpreferable.

The surface processing of the sleeve 20A was sufficient for OP varnishing in the case of the conventional heat insulation container, but in the case of the heat insulation container 20 with a handle piece, since the handle piece 23 is attached, it is resistant to it by surface processing. It is desirable to have burstability. Moreover, when the food which entered the heat insulation container with a handle piece by this invention is distributed in a cooled and frozen state, it is preferable to make it water-resistant.

For this purpose, it is possible to have the following lamination structure in order from the surface.

PE 30㎛ / Paper 270g / ㎡

PE 20㎛ / Paper 270g / ㎡ / PE 20㎛

OPP 30㎛ / PE 15㎛ / Paper 270g / ㎡

PET 12㎛ / PE 15㎛ / Paper 270g / ㎡

OPP 30㎛ / PE 15㎛ / Paper 270g / ㎡ / PE 15㎛

PET 12㎛ / PE 15㎛ / Paper 270g / ㎡ / PE 15㎛

Moreover, you may use the water-resistant double-sided coat ball which provided water resistance in the papermaking step.

Since preprinting is possible on the flat cardboard before blanking the blank 20A ', the degree of freedom of printing on the surface of the sleeve 20A is high, as well as known printing such as offset, gravure, flexo, and the like. Post-printing processing of various overcoatings, gold and silver foils, and embossing can also be carried out freely. And after printing, although the process of the handle piece 23 mentioned above is performed, this process does not impair flatness, and the plastering effect and the information medium function by printing are maintained as it is.

Also in the heat insulation container 20 of FIG. 5, since no additive resin is again selected from polyolefin resin and used for the inner surface coat | court, there exists a sense of security similarly to the heat insulation container of 1st, 2nd embodiment.

The heat insulation container 20 with a handle piece of FIG. 5 can be manufactured in the same procedure as the heat insulation container 10 of 1st, 2nd embodiment mentioned above. However, when blanking the cardboard as a raw material of the sleeve 20A in a fan shape, it is necessary to simultaneously process the handle piece 23 to create the blank 20A '.

FIG. 9 shows an example sample dimension of the heat insulation container 20 with the handle piece of FIG. The specification of the detail part is as follows. Moreover, the comparative example sample of the exact same specification was prepared except the handle piece 23 is not formed.

Example Sample

Specifications of the cup body 20B

Capacity ; 804.2 cc (when full)

500.0 cc (22.5 mm charge from top)

Opening diameter; 143.5 mmφ

Opening diameter; 135.0 mmφ

Bottom plate diameter; 113.8 mmφ

Height ; 72.1 mm

Number of horizontal ribs; 2

Top width of the horizontal ribs; 2 mm

Bottom width; 6 mm

Material composition; PE 25㎛ / Cup Paper 280g / ㎡

Specifications of the Sleeve 20A

Inward Curl Outer Diameter; 119.4 mm

Inward curl thickness; 2.6 mm

Upper diameter; 135.0 mm

Material composition; PE 20㎛ / coat ball 270g / ㎡ / PE 20㎛

Specifications of the handle

Length of bend; 50 mm

Bending degree of bend; The shortest straight line connecting both ends of the bend line

Distance 1 mm

500cc of hot water of 95 degreeC was injected into each of the Example sample which produced the handle piece 23 beforehand, and a comparative example sample. Three minutes later, the hand piece 23 of the example sample was grasped from both sides, and the upper part of the body of the comparative sample was grasped with both hands. It was easy to grasp, and it turned out to be able to handle safely.

The heat insulation container with a handle piece of this invention is not limited to the said embodiment, A various deformation | transformation is possible within the range which does not deviate from the summary of this invention.

For example, the heat insulation space between the cup main body 20B and the sleeve 20A is not limited to what is defined by the inward curl part 22 of the sleeve 20A and the horizontal rib 34 of the cup main body 20B. A heat insulating member may be interposed between the trunk portion 31 of the cup body 20B and the side wall 21 of the sleeve 20A. However, it is preferable that there is a free space above the handle piece 23.

According to the heat insulation container 20 with a handle piece by this invention, since two handle pieces 23 are formed in the position which opposes the side wall 21 of the sleeve 20A used as the exterior of a container, the content amount is large Even if the shape is, for example, a bowl shape or a pot shape, the hot water cooking or the microwave heating cooking can be carried out easily without feeling much heat. Therefore, it is possible to provide various cooked foods in a dining place safely and hygienically, and to make them pleasant and easy to eat. This effect makes it possible to provide products without disabilities, especially for the elderly, the physically disabled, and children.

The heat insulation container 20 according to the present invention has no unevenness on the outer wall of the body, and thus has a high degree of freedom of printing, and enables beautiful precise and fine printing, and thus becomes an excellent printing medium. You can get along with them, and you can have an excellent promotion effect in front of the shop.

From the polyolefin-based resin layer on the inner surface of the heat insulating container 20 with a handle piece according to the present invention, there is no elution of susceptible substances such as environmental hormones as seen in the expandable polystyrene used in the heat insulating container so far, thereby providing a sense of safety in terms of hygiene. Can be.

There is little cost increase by forming the handle piece 23, and a heat insulation container can be provided at a reasonable economic cost.

Since the heat insulation container which concerns on this invention is discarded as a paper product after use, and it is easy to apply, it has a good waste disposal property and can also recycle, and it can contribute to reduction of environmental load.

Fig. 10 shows a paper cup as a heat insulation container according to a fourth embodiment of the present invention, and Fig. 11 shows an outline of a manufacturing procedure of the paper cup.

As shown in Fig. 10, the paper cup 41 is configured by combining a paper cup main body 42 serving as a container main body and a sleeve 43 covering its outer circumference. The cup main body 42 is formed in substantially conical trapezoid which has a trunk part (side wall) 42a and the bottom part 42b. The bottom part 42b is throttled so that the outer peripheral end may be bent downward in FIG. 10, and the bottom part 42b is formed in the substantially "c" shape by which the cross-sectional shape opens downward in FIG. The trunk portion 42a is bonded to the bent portion of the outer peripheral portion of the bottom portion 42b so as to surround the outside. As a result, the thread heel 42f of the cup main body 42 is formed.

In the spout of the cup main body 42, the curled part 42c curled toward the outer side is formed. Ribs 42d and 42e are formed in the trunk portion 42a of the cup main body 42 so as to round the trunk portion 42a, respectively. The rib 42d protrudes inward of the trunk portion 42a, and the rib 42e protrudes outward of the trunk portion 42a. The cup main body 42 is reinforced by these ribs 42d and 42e. The upper rib 42d also functions as a Peter's wire indicating the proper position of the injection (for example, hot water) into the cup main body 42. The lower rib 42e is formed somewhat larger than the rib 42d. The ribs 42d and 42e each have an amount of protrusion so as not to contact the inner surface of the sleeve 43.

The rib 42d may protrude to the outside of the cup main body 42, and the rib 42e may protrude to the inside of the cup main body 42.

As a raw material of the cup main body 42, paper (for example, paper of about 0.3-0.34 mm in thickness) of 150-400 g / m <2> of basis weights is used, for example. At least the inner surface of the cup body 42 is covered with a coating layer (for example, a polyethylene layer) for enhancing heat resistance and water resistance. And similarly to each embodiment mentioned above, it is preferable to select another additive in polyolefin resin again, and to use it as a coating layer of the cup main body 42.

The sleeve 43 is provided to increase the thermal insulation of the paper cup 41. As shown in Fig. 10, the curled portion 43a curled inward is formed at the lower end of the sleeve 43. As shown in Figs. The upper end portion 43b of the sleeve 43 is adhered to the body portion 42a of the cup body 42, while the curl portion 43a faces the side surface of the thread heel 42f of the cup body 42. The curl portion 43a functions as a spacer so that the sleeve 43 is separated from the cup body 42, thereby ensuring a space that functions as a heat insulation layer between the body portion 42a of the cup body 42 and the sleeve 43. . As the material of the sleeve 43, for example, paper having a basis weight of 150 to 400 g / m 2 is used. And since the sleeve 43 does not contact especially hot water or water, the coating layer like the cup main body 42 may be abbreviate | omitted.

As shown in Fig. 11, after the body portion 42a and the bottom portion 42b are adhered together, the rib body 42d and the rib 42e are formed to form the cup main body 42. Moreover, the both ends 43c and 43c of the fan-shaped blank 43 'are joined, and the inward curl part 43a is formed in the lower end, and the sleeve 43 is formed. Then, the adhesive is spray-coated to a predetermined bonding range (hatched area (Fig. 11) BD) set below the curl portion 42c of the cup main body 42, the cup main body 42 and the sleeve 43 are combined, A paper cup 41 is formed by adhering the upper end portion 43b of the sleeve 43 and the body portion 42a of the cup body 42 to each other (see Fig. 16 for the bonding range BD).

And when the rib 42d is bulged radially outward of the cup main body 42, the adhesion range BD is set so that it may not apply over the rib 42d.

12 is an enlarged cross-sectional view showing the periphery of the curl portion 43a of the sleeve 43, and FIGS. 13 and 14 are cross-sectional views explaining the shape of the curl portion 43a. 12 to 14 show a vertical cross section when the center line CL of the cup body 42 is set in the vertical direction.

As shown in FIG. 12, the lower end of the threaded heel 42f, that is, the lower end of the cup main body 42, projects downward from the lower end of the curl portion 43a, that is, the lower end of the sleeve 43. As shown in FIG. Therefore, when the paper cup 41 is placed on a table or the like, the cup main body 42 into which the contents are put is in direct contact with the table or the like. The thread heel 42f of the cup main body 42 is firm, and the flatness of the lower end (the height of which coincides) is relatively good. Therefore, the paper cup 41 is stabilized. And "A" in FIG. 12 shows the amount of protrusion of the cup main body 42 from the curled part 43a.

On the other hand, if the lower end of the curled portion 43a is in contact with a table or the like, the flatness of the lower end of the curled portion 43a is inferior to that of the thread heel 42f, and the cup body 42 is supported via the sleeve 43. Since this causes deformation of the sleeve 43, the stability of the paper cup 41 is deteriorated.

It is preferable that the lower end of the thread heel 42f protrudes with a protrusion amount of 0.01 to 5 mm with respect to the lower end of the curl portion 43a. If it is this range, the protrusion of the cup main body 42 will not be visually worried, and also the threaded sole 42f will contact a table etc. reliably, and the paper cup 41 will be stabilized.

The constitution in which the lower end of the container body protrudes downward from the lower end of the sleeve can also be applied to the case where the inward curl portion is not formed in the sleeve or that the heat insulation container is not formed with the thread heel in the cup body.

As shown in Fig. 12, the outer circumferential position of the lower end of the thread heel 42f is closer than the portion (inner circumferential side end portion of the curl portion 43a) that most approaches the center line CL of the cup main body 42 in the curl portion 43a. It is located in the center line CL side of the cup main body 42. As shown in FIG. "B" in FIG. 12 shows the displacement amount in the radial direction of the cup main body 42 between the outer peripheral lower end of the thread heel 42f and the curl portion 43a. By setting this displacement amount in the range of 0.01-1 mm, the deformation | transformation of the paper cup 41 can be suppressed, ensuring the assembly smoothness. Moreover, the clearance gap is formed between the site | part which approached the center line CL of the cup main body 42 in the curl part 43a, and the side surface of the thread heel 42f facing this site | part. By setting this gap ("D" in Fig. 12) in the range of 0.01 to 1 mm, deformation of the paper cup 41 can be suppressed while ensuring smoothness of assembly.

12 and 13, "X" indicates the direction of the vertical axis (same as the direction of the center line of the cup main body 42), and "Y" indicates the direction indicated by the front end of the paper curled into the curl portion 43a (curl portion ( Direction extending the tip of 43a)]. As shown in Fig. 12, in the curl portion 43a, the tip of the paper is curled until the tip direction of the curled paper is rotated clockwise over the vertical upward direction. Thereby, in assembling the cup main body 42 and the sleeve 43, the thread heel 42f is less likely to be caught by the paper tip of the curl portion 43a, so that both can be assembled smoothly.

In contrast, in Fig. 13A, the leading edge of the paper is not curled until the leading edge of the paper reaches the vertical upward direction. In this way, when the tip of the paper does not reach the vertical upward and the curled portion 43a is in the unfolded state, the cup main body (c) is formed on the curled portion 43a in assembling the cup main body 42 and the sleeve 43. It is not preferable because the thread heel 42f of 42 is easily caught and easily pushes the curled portion 43a.

13B shows an example of a state in which the tip of the paper is rolled up until it rotates beyond the vertical upward direction, and the thread heel 42f is hardly caught by the curl 43a. In addition, in Fig. 12, the paper tip of the curl portion 43 is further rolled up in the clockwise rotation direction from the state of Fig. 13B, so that the thread heel 42f is less likely to be caught.

In FIG. 13C, the paper tip direction in the curl portion 43a does not reach the vertical upward direction, but the paper is closer than the portion that most approaches the center line CL of the cup main body 42 in the curl portion 43a. The tip of is located in the outward direction of the container. And "P" of FIG. 13C has shown the vertical line which contact | connects the inner peripheral surface of the curl part 43a, ie, the position of the horizontal direction in which the curl part 43a approached the center line CL of the cup main body 42 most.

Thus, if the tip of this paper is satisfied rather than the site | part which approached the center line CL of the cup main body 42 in the curled part 43a more than the requirement that it is located in the outward direction of a container, the thread part 43a will be threaded. It becomes difficult to catch 42f. 12 and 13B show cases where both of the above requirements are satisfied. On the other hand, in FIG. 13 (A), the center line CL of the cup main body 42 is closest to the tip of the paper, and the above requirements are not satisfied. In this case, the thread heel 42f is likely to be caught by the paper tip of the curl portion 43a.

In addition, the gap between the tip of the paper rolled into the curl portion 43a and the inner wall surface of the sleeve 43 is 1 mm or less, so that the thread heel 42f is assembled in the cup main body 42 and the sleeve 43. It is hard to be caught by this curl 43a. Moreover, by setting this gap narrower than the thickness of the thread heel 42f, the risk of the thread heel 42f entering the inside of the curl portion 43a from this gap at the time of assembling, and the possibility of pushing out the curl portion 43a is significantly reduced. 14A, 14B and 14C show cases where the gaps are C1, C2 and C3 (C1> C2> C3), and C2 in FIG. It coincides with the thickness of 42f. 14C corresponds to the curl portion 43a of FIG.

15A is a sectional view showing the vicinity of the thread heel 42f. As shown in Fig. 15 (A), the thread heel 42f is positioned inside the container so as to be located inside the container than the extension line R obtained by extending the outer wall surface of the trunk portion 42a above the thread heel 42f. I put it down. By tilting the thread heel 42f inside the container in this manner, the thread hooves 42f are hardly caught by the curl portion 43a when the cup main body 42 and the sleeve 43 are assembled.

As shown in Fig. 15A, a burr 42g protrudes toward the inside of the container at the tip of the thread heel 42f. In the manufacturing process of the cup main body 42, the curled part 42c is formed after forming the threaded heel 42f, but in the formation process of the curled part 42c, the threaded heel 42f is contacted to fix the cup main body 42. Because it presses hard on, a burr necessarily arises in the front-end | tip part of the threaded heel 42f. However, as the burr is projected toward the inside of the container as shown in Fig. 15A, and the burr protrudes out of the container, the burr 42f is hardly caught by the curl portion 43a.

In Fig. 15B, the thread hoof extends along the extension line R of the trunk portion (side wall), and the burr 42h protrudes outside the container. This shape corresponds to a normal paper cup, but when the cup main body 42 is formed in such a shape, the burr 42h protrudes to the outside of the extension line R, so that the thread hoof is easily caught by the curl portion 43a. do.

In order to form the threaded sole 42f so as to fall down inside the container, when the bottom 42b and the body 42a are polymerized to form the threaded sole 42f, the threaded sole 42f is pushed to the inside of the container. What is necessary is just to adhere | attach the bottom part 42b and the trunk | drum 42a, applying the pressure as it floats. For example, when bonding with a knurling roll, the bottom surface of the receiving member which receives the thread heel 42f from the outside is inclined to the inside of the container, and the rotary body that presses the thread heel 42f from the inside is held. What is necessary is just to set it as the taper surface matched with the receiving member. When the thread heel 42f is inclined inward in advance, the burr generated at the tip of the thread heel 42f protrudes inward in a subsequent step, for example, the formation of the curl portion 42c. A thread heel 42f having a shape as shown in 15 (A) can be formed.

After the formation of the thread soles, before the curl portion 42c is formed, pressure may be applied to the thread soles to process the thread soles as shown in Fig. 15 (A). You may make it fix the cup main body 42 using the contact member of the shape which tightens a front end inside. In the latter case, at the same time as the formation of the curl portion 42c, the entire thread or the tip of the thread can be knocked inward.

FIG. 16A is a vertical sectional view showing the bonding portion between the cup main body 42 and the sleeve 43 when the center line CL of the cup main body 42 is placed in the vertical direction. As shown in Fig. 16A, the trunk portion 42a is formed to bend, and a portion of the portion facing the adhesion range BD is extended with respect to the extension line (straight line "S" in Fig. 16) below the portion. The container is inclined inwardly. Thereby, since the direction of the trunk | drum 42a in the adhesion range BD and the direction of the sleeve 43 correspond, and both adhere well, it is possible to obtain sufficient adhesive strength. And the straight line "T" of FIG. 16 shows the direction of the trunk | drum 42a in the bonding range BD. Instead of curving the trunk portion 42a, the sleeve 43 may be curved to be in close contact with the trunk portion 42a as shown in the vertical sectional view of FIG. 16B.

In FIG. 16 (A), the straight line "U" is the horizontal plane passing through the lower end of the curl portion 42c, the straight line "V" is the horizontal plane passing through the upper end of the bonding range BD, and the straight line "W" is the bonding range (BD). Represent the horizontal plane passing through the bottom of each. Here, the width in the vertical direction of the bonding range BD, that is, the distance between the straight line "V" and the straight line "W" in FIG. 16 (A) becomes 3 mm or more, thereby obtaining sufficient adhesive strength. In addition, the distance between the upper end of the adhesion range BD and the lower end of the curl portion 42c, that is, the distance between the straight line "V" and the straight line "U" in Fig. 16A, becomes 1 mm or more. It is considered so that an adhesive agent may not adhere to the curl part 42c which is a site | part to which a spout is attached. In addition, the upper end of the adhesion range BD shown by the straight line "V" is located below the upper end 43c of a sleeve. Thereby, there exists no possibility that an adhesive agent may protrude from the upper end 43c side of the sleeve 43.

When manufacturing the paper cup 41 according to the process shown in FIG. 11, the outer diameter (part shown as "E" in FIG. 10) of the cup main body 42 directly under the curled part 42c, and the sleeve in the site | part The cup main body 42 and the sleeve 43 are formed in advance so that the difference with the inner diameter of 43 may be in a range of -1.0 to +0.5 mm, and both are bonded through the bonding range BD. By adopting such a dimensional relationship, sufficient adhesive force in the adhesion range BD is ensured, and there is no fear of causing wrinkles in the trunk portion 42a of the cup main body 42.

As shown in Fig. 17, the curl portion 43a of the sleeve 43 may be opposed to the trunk portion 42a above the thread heel 42f. In this case, by setting the gap D 'between the curl portion 43a and the trunk portion 42a in the range of 0.01 to 1 mm, the deformation of the paper cup 41 can be suppressed and wrinkles are applied to the trunk portion 42a. It does not cause it.

In the paper cup 41 of this embodiment, it is preferable that the curvature radius (curvature radius in the cross section of FIG. 12) of the paper which forms the curl part 43a shall be 0.6-2.0 mm. By setting it in this range, when paper is not torn and when assembling the cup main body 42 and the sleeve 43, the thread heel 42f of the cup main body 42 is prevented from being caught by the curl part 43a, and smooth assembly is performed. This becomes possible. A more preferable range of the radius of curvature is 1.1 to 1.5 mm. 18A to 18D show examples of the shape of the curl portion 43a in which the radius of curvature is reduced in turn, respectively. That is, R1> R2> R3> R4. The shape of the curl portion 43a shown in Fig. 12 corresponds to Fig. 18D.

19A and 19B are partially enlarged views of the fan-shaped blank 43 '. Reference numeral 51 in FIG. 19A denotes a polymerization region which is polymerized and bonded to the other end of the blank 43 ', and reference numeral 52 denotes a region in which the curl portion 43a is formed (see FIG. 11). As shown in Fig. 19A, the area 51 and the area 52 overlap each other at each corner of the blank 43 '. The cut part 53 which cut out the corner of the blank 43 'by the straight line is formed in the overlap part. The cut part 53 is provided in the edge part of the side arrange | positioned inside a container among the both ends of the blank 43 'to which it adhere | attaches so that it may not be visible in appearance.

As shown in Fig. 19A, the region cut out by the cut portion 53 extends upward beyond the region 52 corresponding to the curl portion 43a. In addition, as shown in Fig. 19B, the cut portion 53 reduces the polymerization area in the region 52 corresponding to the curl portion 43a by 50% or more. That is, in Fig. 19B, reference numeral 54 denotes a region cut out by the formation of the cut portion 53 among overlapping regions where the region 52 and the region 51 before cutting are overlapped with each other. ) Occupies more than 50% of the total overlapping area.

By providing such a cut part 53, continuous curl shape can be formed also in the part which the blank 43 'overlapped, and the favorable shape can be obtained over the whole curl part 43a.

In the region 52 corresponding to the curl portion 43a, OP varnish (overprint varnish) is applied to the outer circumferential surface of the sleeve 43. This OP varnish is a protective layer of the printing surface formed on the outer circumferential surface of the sleeve 43 and is applied by printing or the like from above the printing surface. For example, in the case of gravure printing, an OP varnish containing cellulose resin and acrylic resin in the case of offset printing is used. As thickness, it is about 2-3 micrometers in the case of gravure printing, and about 1 micrometer in the case of offset printing.

Since the protective layer by the OP varnish functions as a friction reducing layer for improving the sliding of the blank 43 'at the time of forming the curl portion 43a, the curl layer 43a can be easily formed by providing a protective layer. Can be.

In the said embodiment, although the case where the OP varnish for protecting a printing surface was used as a friction reducing layer was demonstrated, you may provide the friction reduction layer different from the protective layer of a printing layer in the area | region 52. FIG. In the case where the protective layer of the printed layer is not formed, the friction reducing layer may be formed in the region 52. In addition, the friction reducing layer may be formed on the inner surface (surface toward the center of the container) of the sleeve 43, or may be formed on both surfaces of the inner surface and the outer surface.

In Fig. 10, the paper cup 41 is shown as a cup shape whose outer diameter of the opening is smaller than the height. However, the paper cup 41 has a bowl or bowl shape whose outer diameter of the opening is larger than the height as in the first to third embodiments described above. You may form. A handle piece may be formed in the sleeve 43.

Fig. 20 shows a paper cup as a heat insulating container according to a fifth embodiment of the present invention, and Fig. 21 shows an outline of a manufacturing procedure of the paper cup.

As shown in these figures, the paper cup 61 is configured by combining a paper cup main body 62 serving as a container main body and a sleeve 63 covering its outer circumference. The cup main body 62 is formed in a substantially conical trapezoid having a body portion (side wall) 62a and a bottom portion 62b. In the spout of the cup main body 62, the curl part 62c is formed toward an outer side. After shaping the curl portion 62c, the ribs 62d and 62e are formed in the trunk portion 62a so as to bulge inward or outward in the radial direction of the cup main body 62, respectively. The rib 62d is formed as a Peter's line indicating the proper position of the injection material (for example, hot water) to the cup main body 62. On the other hand, the rib 62e is formed to reinforce the cup main body 62. The rib 62e is formed somewhat larger than the rib 62d. The ribs 62d and 62e each have a protruding amount so as not to contact the inner surface of the sleeve 63. As the material of the cup main body 62, for example, a paper having a basis weight of 150 to 400 g / m 2 is used, and at least the inner surface thereof is covered with a coating layer (for example, a polyethylene layer) for enhancing heat resistance and water resistance. The rib 62d may protrude to the outside of the cup main body 62, and the rib 62e may protrude to the inside of the cup main body 62.

The sleeve 63 is provided to increase the thermal insulation of the paper cup 61. As is apparent from Fig. 21, both ends 63c and 63c of the fan-shaped blank 63 'are joined together, and an inward curl portion 63a is formed at the lower end to form a sleeve 63. And the adhesive agent 64 is apply | coated to the predetermined | prescribed adhesive range (hatch area (FIG. 21) BD) set just under the curl part 62c of the cup main body 62, and the cup main body 62 and the sleeve 63 are applied. In combination, the paper cup 61 is formed by adhering the upper end portion 3b of the sleeve 63 and the body portion 62a of the cup body 62 to each other. And when the rib 62d is bulging radially outward of the cup main body 62, the adhesion range BD is set so that it does not contain the rib 62d. As a raw material of the sleeve 63, for example, paper having a basis weight of 150 to 400 g / m 2 is used. If the sleeve 63 is not in contact with hot water or water, it is not necessary to form a coating layer such as the cup body 62 on the sleeve 63.

As shown in Fig. 22, the cross-sectional shape of the curl portion 62c is a shape in which a circular circle is crushed by pressing the round circle in the axial direction (up and down direction in Fig. 22) of the cup main body 62, in other words, the axis of the cup main body 62. It is flat in the direction orthogonal to a direction, and 62 f of ruled lines are produced in the outer peripheral end. And when the thickness of the cup main body 62 is t, the relationship of the following formula (1) is between the height A of the axial direction of the curl part 62c, and the width B of the direction orthogonal to it. have.

2t <A <B

That is, the height A of the curl portion 62c is greater than twice the thickness t of the cup main body 62 and smaller than the width B of the curl portion 62c. Thus, when the curl part 62c is formed in flat shape, when the film-form cover material 66 is adhere | attached to the curl part 62c, the curl part 62c and the cover material 66 are joined together via the adhesive agent 65. FIG. The lid | cover material 66 can be reliably bonded by predetermined intensity | strength by expanding the width | variety C used. In addition, the preferable range of bonding strength changes with the kind of article accommodated in the inside of the cup main body 62. FIG. As an example, when hot water is poured into the cup main body 62 in a state where the cover member 66 is partially peeled off, such as an instant noodles, and the cover member 66 is removed after a certain time, the cover member 66 is peeled off. The bonding strength can be set so that the force to be made is 400 to 900 gf / 15 mm in width.

Incidentally, in Fig. 20, the paper cup 61 is described as a bowl shape whose outer diameter of the opening is larger than the height, but the paper cup 61 may be configured as a cup-shaped heat insulating container whose outer diameter of the opening is smaller than the height. The outer peripheral surface of the sleeve 63 is printed with a trademark or the like, but the printing is performed at the stage of the blank 63 '. Hereinafter, the surface on which printing is performed is called the surface of the blank 63 ', and the surface on the opposite side is called a back surface.

23 to 25 show the apparatus for manufacturing the sleeve 63 described above, FIG. 23 is a plan view, FIG. 24 is a side view from the XXIV direction of FIG. 23, and FIG. 25 is an enlarged view of the XXV portion of FIG. As shown in these figures, the manufacturing apparatus 1010 has a frame 1011 and a driving apparatus 1012 provided on the bottom surface of a factory. The drive device 1012 distributes the rotation of the motor 1120 as a drive source to each part of the manufacturing device 1010 via known transmission elements such as chains and gears. In the upper part of the frame 1011, the turntable 1013 is rotatably provided around the rotating shaft 1130 in the vertical direction. On the outer circumference of the turntable 1013, eight mandrels 1014... 1014 for winding the blank 63 ′ are mounted at equal intervals (45 °) in the rotation direction of the turntable 1013.

As also shown in Fig. 26, the mandrel 1014 has a trunk portion 1140 having a tapered shaft outer peripheral surface whose diameter decreases toward the tip. The center line of the trunk portion 1140 is directed in the radial direction of the turntable 1013. The trunk portion 1140 changes depending on the dimensions of the sleeve 63, but its overall length is shorter than the height in the axial direction of the sleeve 63. The central axis 1130 of the turntable 1013 is connected to the drive device 1012 via an intermittent drive mechanism 1015. The intermittent drive mechanism 1015 converts the continuous rotary motion guided from the drive device 1012 into the intermittent rotary motion of the turntable 1013. As such an intermittent drive mechanism 1015, a well-known mechanism, such as a Geneva mechanism, can be used, for example.

By the intermittent drive mechanism 1015, the turntable 1013 is intermittently rotated in the direction of the arrow F in FIG. 25 at a rate of 45 ° with respect to one time. As a result, the station ST 10 is equal to the mandrel 1014 as the stop position of the mandrel 1014 around the turntable 1013. The winding device 1030, the auxiliary sealing device 1050, the curl preparation device 1060, and the curling processing devices 1070A, 1070B, and 1070C are provided around the turntable 1013 as a device necessary for the manufacture of the sleeve 63. And a sleeve discharge device 1080 are distributed to each station ST. Moreover, the blank supply apparatus 1020 is provided in the side of the winding-up apparatus 1030 (refer FIG. 23 and FIG. 24). In addition, a main sealing device 1040 is provided above the turntable 1013. The outline of each device is as follows.

The blank supply apparatus 1020 applies an adhesive agent to the one end 63c of the blank 63 ', and supplies it one by one to the winding apparatus 1030. The winding device 1030 winds the supplied blank 63 'on the mandrel 1014. The main sealing device 1040 restrains the seam 63d (see FIG. 21) of the sleeve 63 wound on the mandrel 1014 to promote its adhesion. The auxiliary sealing device 1050 presses a portion protruding from the tip of the mandrel 1014 among the joint portions 63d to promote the adhesion thereof. The curl preparation device 1060 applies a material (for example, a silicone liquid) to promote curl at the end of the sleeve 63 in preparation for the processing of the curl portion 63a. The curl processing apparatuses 1070A, 1070B, and 1070C process the curl portion 63a at the shaft end of the sleeve 63. The sleeve discharging device 1080 then takes the completed sleeve 63 out of the mandrel 1014 and takes it out of the device 1010.

27 to 31 show details of the blank supply device 1020. 27 and 28, a blank holder 1021, a blank ejecting apparatus 1022, a conveyor (first conveying apparatus) 1023, and an adhesive applying device are provided in the first half of the blank supply apparatus 1020. (1024) is installed. 30 and 31, a wheel device (reverse device, bypass device) 1025 and a blank feed device (second conveying device) 1026 are provided in the second half of the blank supply device 1020. It is.

As shown in Figs. 27 to 29, the blank holder 1021 includes a base 1210 supported by the frame 1011 and a plurality of rods 1211 mounted around the outlet 1210a of the base 1210. Have An enlarged portion 1211a is formed at the lower end of the rod 1211, and a plurality of blanks 63 'are stacked on the surface thereof (upper surface).

The blank ejecting device 1022 has a suction unit 1220 disposed below the ejection opening 1210a of the blank holder 1021, and an air cylinder 1221 for driving the suction unit 1220 up and down. The suction unit 1220 has a plurality of suckers 1222... During operation of the apparatus 1010, the air cylinder 1221 reciprocates the suction unit 1220 up and down at regular intervals. When the suction unit 1220 is raised, the sucker 1222 is pressed onto the bottom surface of the blank 63 'at the bottom of the blank holder 1021, and in synchronization therewith, air is sucked from the suction surface of the sucker 1222 by suction means (not shown). The blank 63 'is sucked into the suction plate 1222 by suction. The adsorbed blank 63 ′ moves over the enlarged portion 1211 a of the rod 1211 as the descending unit 1220 descends and moves onto the guide rails 1230 and 1231 of the conveyor 1023. When the blank 63 'is taken out on the rails 1230 and 1231, suction of air from the sucker 1222 is stopped, and the sucker 1222 is spaced below the blank 63'. By the repetition of this operation, the blanks 63 'are taken out to the conveyor 1023 one by one. And since the sucker 1222 adsorb | sucks to the back surface of the blank 63 ', there is no possibility of damaging printing.

The conveyor 1023 has a pair of chains 1233 and 1233 which are walked between the guide rails 1230 and 1231 and the sprockets 1232a and 1232b described above and run in parallel with the guide rails 1230. Each chain 1233 is provided with a plurality of hooks 1234,... 1234 engaged with the blank 63 'at predetermined intervals. By the rotational motion transmitted to the drive unit 1235 via the chain 1121 or the like of the drive device 1012 described above, each chain 1233 is continuously driven at a constant speed in the arrow F direction in FIG. Thereby, the blank 63 'taken out on the guide rails 1230, 1231 is sent toward the wheel device 1025 at a constant speed. And as is clear from FIG. 28, the blank 63 'is conveyed so that the one end 63c may be parallel to the conveyance direction of the conveyor 1023. As shown in FIG. As is apparent from Fig. 23, the conveying direction of the conveyor 1023 is parallel to the center line CL of the mandrel 1014 fed directly above the winding device 1030.

As shown in Figs. 27 and 28, the adhesive application device 1024 includes a pull plate 1240 for storing an adhesive, an application roller 1241 in which the lower part is immersed in an adhesive in the pull plate 1240, and the application roller. The press roller 1242 arrange | positioned facing the upper part of 1241 and the air cylinder 1243 which drives the roller 1242 up and down are included. The application roller 1241 is formed of the blank 63 ′ by the conveyor 1023 by the power transmitted from the drive 1235 of the conveyor 1023 through the chain 1244, the shaft 1245, the chain 1246, and the like. It is driven to rotate at a constant speed in synchronization with the conveyance.

When one end 63c of the blank 63 conveyed by the chain 1233 moves from the conveying surface 1230a of the guide rail 1230 to the upper end of the roller 1241, the roller ( 1242 is pushed to the roller 1241 side, and one end 63c of the blank 63 'is sandwiched between the rollers 1241 and 1242. As a result, the adhesive stored in the pool plate 1240 is applied to the rear surface side of one end 63c of the blank 63 'via the outer circumference of the application roller 1241. The blank 63 'after adhesive application is sent to the wheel device 1025 by the conveyor 1023.

30 and 31, the wheel device 1025 includes a wheel shaft 1250 rotatably supported by an frame 1011 about an axis orthogonal to the conveying direction of the conveyor 1023, and It has a pair of wheels 1125 and 1251 parallel to each other rotatably mounted integrally to the wheel shaft 1250. The wheel shaft 1250 is supported at substantially the same height as the conveying surface 1230a of the blank 63 'by the conveyor 1023. Moreover, the slit 1252 ... 1252 which receives the blank 63 'is formed in each wheel 1251 at a constant pitch in the circumferential direction. The diameters of the wheels 1251 are the same, and the number of slits 1252 and the depth in the radial direction are also the same. In other words, the distances from the center of the wheel shaft 1250 to the inner peripheral end of each slit 1252 are all the same. Moreover, each wheel 1251 and 1251 is arrange | positioned symmetrically with respect to the center line CL of the mandrel 1014 thrown in directly above the winding-up apparatus 1030, when the apparatus 1010 is seen from above.

As is apparent from Fig. 31, intermittent rotary motion taken out from the intermittent drive mechanism 1015 is input to one end of the wheel shaft 1250 through the chains 1253 and 1254 and the worm mechanism 1255. The relationship between the rotation of the turntable 1013 and the rotation of the wheel 1252 is that when the turntable 1013 rotates by 45 °, the wheel 1251 moves in the direction of the arrow R of FIG. 30 by the pitch angle of the slit 1252 in synchronization with it. It is set to drive in rotation.

Therefore, the end of the conveyor 1023 (right end in FIG. 30) is indexed so that the empty slit 1252 is approximately horizontal whenever the turntable 1013 rotates by a predetermined angle. A blank 63 'coated with an adhesive is loaded into the indexed slit 1252. The blank 63 ′ carried in the slit 1252 is gradually conveyed to the rear end side of the blank supply device 1023 by further rotation of the wheel 1251.

The blank 63 'conveyed about 180 ° around the wheel shaft 1250 by the wheel 1251 is taken out of the slit 1252 by the blank feeding device 1026 and sent to the winding device 1030. At this stage, the blank 63 'is inverted so that its surface (print surface) is downward. Furthermore, the relationship between the blank 63 'and the centerline CL of the mandrel 1014 on the winding device 1030 is compared with that before the acceptance into the wheel 1251, so that the blank 63' is about the centerline CL. It is changed so as to be symmetrical. The reason is that the blank 63 'slides in the slit 1252 in the process of the blank 63' rising with the rotation of the wheel 1251, and the small diameter side end edge 63f of the blank 63 '. (See Fig. 21) is supported by contact at the inner circumferential side ends of the respective wheels 1251 and slits 1252. The adhesive applied to the end 63c of the blank 63 'during the 180 ° conveyance by the wheel 1125 is dried to an appropriate degree. Therefore, the adhesive strength of the joint portion 63d of the blank 63 'wound on the mandrel 1014 in the winding device 1030 is increased.

The feeding device 1026 includes a pair of guide rails 1260 and 1260 for receiving the blanks 63 'conveyed by the wheels 1251, and a pair of carriers extending in parallel with these guide rails 1260. (1261, 1261), an air cylinder (1262) for driving these carriers (1261) up and down, a slider (1263) for supporting the air cylinder (1262), and the slider (1263) and a guide rail (1260). It has the linear guide apparatus 1264 which supports to be movable in parallel. The slider 1263 is provided with a cam groove 1263a extending up and down, and the cam groove 1263a is fitted with a cam follower 1265a mounted on the cam wheel 1265.

The cam wheel 1265 is driven to rotate at a constant speed in a predetermined direction by a rotational motion transmitted from the driving device 1012 via the chain 1122 or the like. The rotation of the cam wheel 1265 is converted into linear movement of the slider 1263 by the cam follower 1265a and the cam groove 1263a so that the carrier 1261 reciprocates in a direction parallel to the guide rail 1260. do.

When the carrier 1261 advances toward the winding device 1030, the carrier 1261 is lifted by the air cylinder 1262, and the hook 1261a of the rear end (left end in FIG. 30) of the carrier 1261 is lifted. Meshes with a blank 63 ′ received in the guide rail 1260. Therefore, the blank 63 'is sent out from the wheel 1251 as the carrier 1261 advances. When the carrier 1261 returns to the wheel 1251 side, the carrier 1261 descends. Accordingly, the hook 1261a returns to the inner circumferential side of the blank 63 'without interfering with the next blank 63' coming off on the guide rail 1260 by the next rotation of the wheel 1251.

The blank 63 'taken out of the wheel 1251 by the hook 1261a is sent up to the top of the winding device 1030 in engagement with the hook 1261b at its tip the next time the carrier 1261 advances. At this time, the blank 63 'hits a predetermined positioning reference plane (not shown) and is accurately positioned in the center line CL direction. The reciprocating motion period of the carrier 1261 is the same as the intermittent rotational motion period of the turntable 1013. When the turntable 1013 is rotated so that the mandrel 1014, in which the sleeve 63 is not wound, is introduced directly above the winding device 1030, the carrier 1261 is advanced and the blank 63 ′ in the winding device 1030. Is supplied.

32 shows the details of the winding apparatus 1030. The winding device 1030 includes a base 1031 fixed to the frame 1011, a pair of arms 1032 and 1032 rotatably mounted to the base 1031 via an axis 1310, and these arms ( A drive mechanism 1033 for driving the 1032 and 1032 around the shaft 1310 and a center pressing device 1034 attached to the base 1031 so as to overlap each other on the shaft 1310. The arm 1032 is equipped with a winding hole 1320 having an inner circumferential surface 1320a curved along the outer circumferential surface of the shaft portion 1140 of the mandrel 1014.

The drive mechanism 1033 has a horizontal drive shaft 1033. A sprocket 1330a is installed at the shaft end of the drive shaft 1330, and a continuous rotational motion of the drive device 1012 is input to the sprocket 1330a through a chain 1126 (see FIG. 24). The rotation guided to the drive shaft 1330 is converted into reciprocating up and down motion of the push rods 1332 and 1332 by the crank mechanisms 1331 and 1331. Each push rod 1332 is guided only in the up and down direction by the guide 1311 of the base 1031.

The upper end of the push rod 1332 is connected to the arm 1032 via a pin 1333, a link 1334, and a pin 1335. Accordingly, the arm 1032 swings about the axis 1310 at regular intervals in association with the vertical movement of the push rod 1332. The rocking motion period of the arm 1032 is the same as the intermittent rotational motion of the turntable 1013. The center pressing device 1034 has a pressing mechanism 1340 disposed to face the lower end of the mandrel 1014, and an air cylinder 1341 that presses the pressing mechanism 1340 to the lower end of the mandrel 1014.

When the blank 63 'and the mandrel 1014 are supplied above the winding apparatus 1030, the arm 1032 retreats below the blank 63' as shown by imagination. When the blank 63 'is supplied, the pressing mechanism 1340 is pushed up by the air cylinder 1341, and the center of the blank 63' is pressed to the lower end of the mandrel 1014. Subsequently, the arm 1032 rotates toward the mandrel 1014, so that the blank 63 ′ is gradually wound around the body portion 1140 of the mandrel 1014. When the push rod 1332 moves to the upper end of its movement range, the winding opening 1320 of the arm 1032 almost completely surrounds the outer periphery of the mandrel 1014, except for the upper end thereof, as shown by a solid line in FIG. do. As a result, the blank 63 ′ is almost completely wound around the outer circumference of the trunk portion 1140. At this time, end portions 63c and 63c of the blank 63 'overlap each other at the upper end of the mandrel 1014 to form a joint portion 63d (see Fig. 21). The operation timings of the arms 1032 and 1032 are slightly displaced so that the end portion 63c coated with the contact agent on the back surface is located outside the joint portion 63d than the end portion 63c on the opposite side.

Thereafter, the push rod 1332 is turned downward to move the arm 1032 away from the mandrel 1014, and the pressing mechanism 1340 is drawn downward by the air cylinder 1341. In response to this, the turntable 1013 is rotated so that the next mandrel 1014 and the blank 63 'are loaded into the winding device 1030. Then, the push rod 1332 starts rising again, and the winding of the blank 63 'is performed as described above.

The joint portion 63d of the sleeve 63 formed on the mandrel 1014 in the winding device 1030 is pressed onto the mandrel 1014 in the main sealing device 1040.

As shown in FIG. 26, the main sealing device 1040 includes an air cylinder 1041 disposed above the mandrel 1014, and a iron 1042 suspended from the movable portion 1410 of the air cylinder 1041. As shown in FIG. Have. The air cylinder 1041 and the iron 1042 are provided with respect to each mandrel 1014, and the air cylinder 1041 is attached to the turntable 1013 via the support body 1043. As shown in FIG. Accordingly, the air cylinder 1041 and the iron 1042 suspended therein rotate integrally with the mandrel 1014 in accordance with the drive of the turntable 1030.

The movable portion 1410 of the air cylinder 1041 is operable in the vertical direction. The pharynx 1042 is inclined along the outer circumferential surface of the mandrel 1014, the length of which is approximately equal to the total length of the mandrel 1014. The pharynx 1042 is heated to an appropriate temperature (for example, 100 ° C.) to promote adhesion of the joint portion 63d by a built-in heater (not shown).

When the blank 63 ′ is wound around the mandrel 1014 by the winding device 1030, the iron 1042 is supported at a position away from the mandrel 1014 by the air cylinder 1041. When the blanks 63 'are wound around the mandrel 1014 by the winding holes 1320 of the winding device 1030, the air cylinders 1041 are wound by the air cylinder 1041 before the winding holes 1320 are removed from the mandrel 1014. The pharynx 1042 is pressed against the seam 63d. As a result, the joint 63d is heated and suppressed to promote adhesion by the adhesive. Heating and suppression of the seam 63d by the pharynx 1042 are continued until the mandrel 1014 reaches the sleeve ejection device 1080 (see FIG. 25). And when the mandrel 1014 is carried in to the discharge device 1080, the iron 1042 falls above the mandrel 1014 by the air cylinder 1041.

In the upper part of the support body 1043, the direction change valve 1044 which switches the supply direction of the compressed air to the air cylinder 1041 is provided with respect to each air cylinder 1041. As shown in FIG. The direction change valve 1044 incorporates a detent type spool (not shown). The position of the spool is switched by alternatively pressing-pressing the push buttons 1440 and 1441 protruding from both ends of the direction switching valve 1044. When the push button 1440 is press-fitted, the position of the direction change valve 1044 is changed to drive the air cylinder 1041 downward. When the push button 1441 is pushed in, the position of the direction change valve 1044 is changed to drive the air cylinder 1041 upward. In the vicinity of the winding-up device 1030, the air cylinder 1045 which has the movable part 1450 for pushing-in this direction switching valve 1044 is provided (refer FIG. 25). The air cylinder 1045 is driven in accordance with the timing at which the winding device 1030 winds up the blank 63 'on the mandrel 1014, and the movable portion 1450 press-presses the push button 1440. In response, the air cylinder 1041 is driven downward so that the iron 1042 is pressed against the seam 63d of the sleeve 63. In addition, as shown by an imaginary line in FIG. 26, in the vicinity of the discharge apparatus 1080, the rod 1046 for pushing-in the push button 1442 is provided. The rod 1046 has a bearing 1460 at its tip. When the mandrel 1014 is brought into the discharging device 1080, the push button 1441 is pressed into contact with the bearing 1460, so that the iron 1042 prior to the discharging operation of the sleeve 63 by the discharging device 1080. ) Is dropped from the mandrel 1014.

33 shows the main part of the auxiliary sealing device 1050. The auxiliary sealing device 1050 has a pair of insertion holes 1051 and 1051 arranged up and down and an actuator 1052 such as an air cylinder which drives the insertion holes 1051 and 1051 to approach and isolate each other. The actuator 1052 and the insertion hole 1051 supported thereon are driven as follows by the power supplied from the above-described driving device 1012.

First, when the turntable 1013 is stopped, the actuator 1052 stops at the position shown in Fig. 33B. At this time, the insertion holes 1051 and 1051 are driven in a direction approaching each other by the actuator 1052. Thereby, the part contained in the protrusion part 63e from the mandrel 1014 among the joint parts 63d of the sleeve 63 is mutually fitted in insertion slots 1051 and 1051. The insertion port 1051 is heated to a suitable temperature (higher than the heating temperature of the main sealing device 1040) by a heater not shown. The adhesion of the protruding portion from the mandrel 1014 of the joint portion 63d is promoted by heating and pressurization by the insertion port 1051.

When the turntable 1013 rotates, as shown in Fig. 33A, the insertion holes 1051 are supported by the actuator 1052 in a direction away from each other. Then, by the power from the drive device 1012, the actuator 1052 retreats once radially outward of the turntable 1013 to allow the next mandrel 1014 to be carried in. When the rotation of the turntable 1013 passes by half, the operation direction of the actuator 1052 is reversed, and the insertion hole 1051 advances to the mandrel 1014 side. When the rotation of the turntable 1013 stops, the actuator 1052 returns to the position shown in Fig. 33B, and in synchronization with the actuator 1052, the actuator 1052 is driven to insert the joint 63d by the insertion hole 1051. Is initiated.

As shown in FIG. 25, the curl preparation device 1060 has a pad 1061 facing the mandrel 1014. The pad 1061 is impregnated with a silicone liquid as a material for promoting the curl described above. The pad 1061 is driven in the radial direction of the turntable 1013 by the power supplied from the drive device 1012. The pad 1061 is away from the sleeve 63 on the mandrel 1014 when the turntable 1013 is rotating. When the turntable 1013 is stopped, the pad 1061 is pressed against the projecting portion 63e of the sleeve 63 to apply the silicone liquid.

As shown in FIG. 34, the curling processing apparatus 1070A includes a slider 1071 that is movable in the radial direction of the turntable 1013, and a plurality of springs on the side of the slider 1071 that faces the turntable 1013. 1072... 1073 has a working jig 1073 attached thereto. The processing jig 1073 is heated to predetermined temperature (for example, 170-190 degreeC) by the heater which is not shown in figure. The slider 1071 is repeatedly driven in the radial direction in association with the rotation of the turntable 1013 by the power supplied from the driving device 1012. When the turntable 1013 is rotating, the processing jig 1073 is separated from the sleeve 63 on the mandrel 1014. When the turntable 1013 is stopped, the processing jig 1073 is pressed against the projecting portion 63e of the sleeve 63. The protrusion 63e of the sleeve 63 is gradually curled inward by heating and pressurization by the processing jig 1073. And the groove 1730 which sets the curl direction of the protrusion part 63e is formed in the opposing surface of the processing jig 1073 with the mandrel 1014. As shown in FIG.

The curl processing apparatuses 1070B and 1070C also have the same structure as the curl processing apparatus 1070A. However, the grooves of the processing jig 1073 of the devices 1070A, 1070B, and 1070C are gradually formed in order to gradually form the curl portion 67a by conveying the sleeve 63 to the processing devices 1070A, 1070B, and 1070C in order. 1730 are to be different from each other. The temperature of the processing jig 1073 of the first processing device 1070A may be set higher than the temperature of the processing jig 1073 of the other processing devices 1070B and 1070C. In the processing apparatus 1070A, since the projecting portion 63e of the sleeve 63 is not curled, the processing resistance is larger than that of the other apparatuses 1070B and 1070C. Therefore, it is necessary to increase the heating amount and make the processing easier. On the other hand, in the processing apparatuses 1070B and 1070C, in which the resistance of the machining is relatively small, it is preferable to reduce the heating temperature to suppress the influence on the printing of the sleeve 63 and the like.

In at least one of the processing apparatuses 1070A, 1070B, and 1070C, the processing jig 1073 may be attached to the output shaft 1740 of the motor 1074 and rotated about the axis of the mandrel 1014, as shown in FIG. . In this case, the heating of the processing jig 1073 may be omitted. When the processing jig 1073 of the processing apparatus 1070A is constituted as shown in Fig. 35, there is an advantage that a bending habit is generated so that the curl portion 63a is generated without heating the protrusion 63e of the sleeve 63. In addition, when the processing jig 1073 is rotated in the first processing apparatus 1070A, the silicone liquid applied to the protrusion 63e of the sleeve 63 in the preparation apparatus 1060 is projected by the rotation of the processing jig 1073. It is distributed uniformly around the front of 63e.

The sleeve 63 is completed by the processing of the curl processing device 1070C. The completed sleeve 63 is taken out of the manufacturing apparatus 1010 by the sleeve discharging apparatus 1080. As shown in FIGS. 36 and 37, the sleeve ejecting device 1080 presses the rollers 1810 from underneath and contacts the sleeve 63 on the mandrel 1014 to bring the sleeve 63 to the side of the mandrel 1014. The roller mechanism 1081 to be taken out by this, and the delivery mechanism 1083 which receives the sleeve 63 taken out by the roller mechanism 1081, and conveys it to the discharge conveyor 1082 in the up-down inversion state are included.

The roller 1810 is rotationally driven by the motor 1811 in the counterclockwise direction (arrow CCW direction) in Fig. 36 at a constant speed. The motor 1811 is attached to the platform 1812. The platform 1812 is repeatedly driven in the vertical direction in association with the rotation of the turntable 1013 by the power supplied from the driving device 1012. When the turntable 1013 is rotating, the platform 1812 descends as shown by the solid line in FIG. 36, and the roller 1810 is spaced below the mandrel 1014. When the turntable 1013 is stopped, the roller 1810 is pressed into contact with the sleeve 63 on the mandrel 1014 (see imaginary line in FIG. 36), and thus the sleeve 63 is scraped from the mandrel 1014. Is sent to the delivery mechanism (1083).

The transmission mechanism 1083 has a drive shaft 1084 extending in the horizontal direction and a sleeve support 1085 attached to the shaft end portion 1840 of the drive shaft 1084. The sleeve support 1085 crosswise combines four sheets of material 1850... 1850 into two pieces to form two sets of cross frames 1851... 1185 and each cross frame 1852 is a hollow spacer ( 1852... 582 is polymerized at appropriate intervals in the axial direction of the drive shaft 1084, and is fixed on the drive shaft 1084 by bolts 1853 passing through the spacer 1852.

By the pair of cross frames 1851 and 1851, four sleeve receiving portions 1086... 1086 are formed on the sleeve support 1085 at intervals of 90 ° in the circumferential direction of the drive shaft 1084. The drive shaft 1084 is driven to rotate by 90 ° in the direction of the arrow R in FIG. 36 in synchronization with the rotation of the turntable 1013 by intermittent rotational motion taken out from the intermittent drive mechanism 1015. When the turntable 1013 is stopped, one sleeve receiving portion 1086 is introduced into a position opposed to the mandrel 1014, and the sleeve taken out by the roller mechanism 1081 on the outer circumference of the sleeve receiving portion 1086 ( 63) is put in. The encased sleeve 63 is supported from the inner circumferential side by the sleeve receiving portion 1086 and rotates around the drive shaft 1084 in accordance with the rotation of the sleeve support 1085.

A part 10 around the sleeve support 1085 is provided with a guide 1087 for preventing the sleeve 63 supported by the sleeve receiving portion 1086 from falling down. Then, when the sleeve receiving portion 1086 moves to a position facing directly downward, the sleeve 63 is released from the guide 1087 and falls on the conveyor 1082. The dropped sleeve 63 is carried out from the manufacturing apparatus 1010 by the conveyor 1082.

In the above-mentioned sleeve manufacturing apparatus, the drive apparatus 1012 is a conveying apparatus in the sleeve manufacturing apparatus which concerns on 6th invention, the conveyor 1023 is a 1st conveying apparatus, and the wheel apparatus 1025 is a reversing apparatus and a bypass apparatus. The blank feeding device 1026 functions as a second conveying device, respectively.

The sleeve manufacturing apparatus of this invention is not limited to embodiment mentioned above, You may implement in various forms. For example, the sleeve manufacturing apparatus of this invention is not limited to the sleeve 63 of the paper cup 61 of FIG. 20, It can use for manufacture of the exterior of various containers. Processing of the curled portion by the heated processing jig can be applied to any of the examples shown in FIG. 38A illustrates an example of processing the inward curl portion 63a at the small diameter side end portion of the sleeve 63, and (B) illustrates an example of processing the outward curl portion 63g at the small diameter side end portion of the sleeve 63. (C) shows an example of processing the inward curl portion 63h at the large diameter side end portion of the sleeve 63, and (D) shows an example of processing the outward curl portion 63i at the large diameter side end portion of the sleeve 63, respectively. have. Similarly, you may process the curl of the cup main body 62 by pressing the heated processing jig.

According to the above sleeve manufacturing apparatus, the curled portion can be processed with a small force by softening the sleeve by the heated processing jig, thereby reducing the burden on the sleeve on the mandrel. As a result, the manufacturing defect of the sleeve is reduced and the yield is improved. Even when the sleeve is taken out of the mandrel after manufacture, the operation can be easily performed, thereby simplifying the configuration of the apparatus.

In addition, according to the blank supply device, the excess moisture of the adhesive applied to the blank is evaporated in the blank supply device to obtain an optimum adhesive strength. As a result, the incidence rate of product defects due to lack of adhesive strength is reduced. Since an adhesive agent is apply | coated to the lower surface side of a blank, roller row etc. can be comprised more easily than when applying from an upper surface side. The blank feed device can be laid out straight with respect to the centerline of the mandrel.

Moreover, according to the said sleeve discharge apparatus, since it is not necessary to take out the outer periphery of the sleeve discharged | emitted from the mandrel, there is no possibility of damaging the printing of a sleeve outer periphery, and the yield of sleeve manufacture can be improved. The rotational speed of the roller may be lowered to reduce the load on the sleeve, thereby further reducing the risk of damaging the sleeve.

39 to 41 show the formation of the ribs 62d and 62e for the cup body 62 and the assembly of the sleeve 63 for the cup body 62 during the manufacturing process of the paper cup 61 shown in FIG. Fig. 39 is a plan view, Fig. 40 is a side view from the XXXX direction in Fig. 39, and Fig. 41 is a side view from the XXXXI direction in Fig. 40.

The apparatus 2010 includes a frame 2011 installed on the floor of a factory, a turntable 2012 supported on the frame 2011, and a drive mechanism for horizontally rotating the turntable 2012 around its center line ( 2013). The drive mechanism 2013 transmits the rotational motion of the prime mover 2014 to the turntable 2012 while decelerating using a transmission means such as a chain or a gear. On the outer circumference of the turntable 2012, twelve cup supports 2100 ... 2100 as container holders are mounted at equal intervals in the circumferential direction. The cup support 2100 supports the cup main body 62 in a state of inverting up and down from the inside thereof. Details will be described later.

The drive mechanism 2013 intermittently drives the turntable 2012 in the direction of the arrow F in FIG. 39 at a rate of 30 degrees per one time. Thereby, around the turntable 2012, the cup support 2100 and the same number of stations (the stop position of the support 2100) ST ... ST are defined. In some stations ST, a cup supply device 2020, a processing device 2030A, 2030B, a pull attaching device 2040, a sleeve supply device 2050, as an apparatus necessary for the manufacture of the cup 61, The sleeve alignment device 2060, the inspection device 2070 and the discharge device 2080 are provided. Each device 2020 to 2080 executes a task assigned to each device in synchronization with the rotational drive of the turntable 2012. The outline of each device is as follows.

The cup supply apparatus 2020 is one cup main body 62 from the lower end of the magazine 2021 (refer FIG. 41) in synchronization with this, when the turntable 2012 stops and the empty cup support 2100 is injected below. Take out and supply it to the cup support 2100. The cup main body 62 attached to the magazine 2021 has no ribs 62d and 62e, and the curl portion 62c has a substantially round cross-sectional shape.

When the turntable 2012 stops, the processing apparatus 2030A, 2030B forms the rib 62d or 62e with respect to the cup main body 62 on the support 2100 supplied forward. Moreover, the processing apparatus 2030A also processes the curl portion 62c. The pull attaching device 2040 sprays and attaches the adhesive 64 (refer FIG. 21) for joining the cup main body 62 and the sleeve 63 to a predetermined position on the outer circumference of the cup main body 62. The sleeve supply device 2050 supplies the sleeve 63 to the outer circumference of the glued cup body 62. The sleeve fitting device 2060 pushes the sleeve 63 covered by the cup main body 62 toward the open end side of the cup main body 62 while centering the cup 63. The inspection apparatus 2070 inspects whether the cup main body 62 and the sleeve 63 are properly combined, and whether the sleeve 63 is molded correctly. The discharging device 2080 separates the paper cup 61 from the cup support 2100 and feeds it out of the device.

42 and 43 show details of the cup supply apparatus 2020. The cup supply apparatus 2020 has the above-mentioned magazine 2021 which accumulates the cup main body 62, three draw rollers 2022 ... 2022 arrange | positioned at the lower end of the magazine 2021, and each roller 2022, respectively. It has a drive mechanism 2023 which rotates and rotates around the axis. The magazine 2021 is configured by mounting six rods 2211... 2211 around the through-hole 2210a of the base 2210, and the inside of the cup body 62 is polymerized in a state in which the cup body 62 is inverted in the up and down direction. (See FIG. 41). The roller 2022 is attached to the base 2210 in a state where a part of the roller 2022 protrudes from the through hole 2210a (see Fig. 43). The curl part 62c of the cup main body 62 accommodated in the lower end of the magazine 2021 is mounted on the upper surface of the roller 2022, and the cup main body 62 in the magazine 2021 is supported by the up-down direction.

The drive mechanism 2023 includes a motor 2230 as a drive source, a primary pulley 2231 mounted on the output shaft 2230a of the motor 2230, and a secondary pulley 2232 rotatably mounted on the base 2210. ) And an idler 2233. A belt 2234 is caught between the pulleys 2231 and 2232 and the idler 2233, and the secondary pulley 2232 is connected to the roller 2022 via a connecting shaft 2235 rotatably supported by the base 2210. Connected to coaxial.

When the turntable 2012 is rotated and the empty cup support 2100 is inserted below the supply apparatus 2020, the output shaft 2230a of the motor 2230 is driven to rotate by a predetermined amount. In conjunction with this rotation, each roller 2022 rotates a certain amount in the same direction at the same speed. When the roller 2022 rotates, the curl part 62c of the cup main body 62 supported on these roller 2022 engages with the spiral groove 2220 formed in the outer periphery of each roller 2022, and accordingly a cup The main body 62 is taken out of the magazine 2021 and supplied from the through hole 2210a to the cup supporter 2100 below.

44 shows details of the processing apparatus 2030A and the cup support 2100. The cup support 2100 is attached to the outer periphery of the turntable 2012 and extends in the vertical direction, a rotating cylinder (rotary body) 2102 attached to the outer periphery of the support shaft 2101, It has a spacer 2103 and collars 2104 and 2105 attached to the outer circumference of the rotary cylinder 2102. The rotary cylinder 2102 is mounted to the support shaft 2101 via a bearing (not shown) and is free to rotate around the support shaft 2101. The collars 2104 and 2105 are rotatable integrally with the rotary cylinder 2102. At the lower end of the rotating cylinder 2102, a disk-shaped wheel 2106 serving as a curl receiving member is integrally provided. The curl part 62c of the cup main body 62 contacts the upper surface of the wheel 2106, and the cup main body 62 is supported in the up-down direction. Flanges 2104a and 2105a are integrally formed on the outer circumference of the collars 2104 and 2105. The outer circumference of the flanges 2104a and 2105a almost contacts the trunk portion 62a of the cup body 62 at the position where the ribs 62d and the ribs 62e are formed, whereby the cup body 62 is radially supported. do. That is, the flanges 2104a and 2105a respectively function as sidewall receiving members. The upper end of the support shaft 2101 protrudes above the rotating cylinder 2102. At the center of the support shaft 2101, an air flow path (not shown) is formed to penetrate the support shaft 2101 in the axial direction.

44 and 45, the processing apparatus 2030A includes a rotation drive mechanism 2031 for rotating the cup main body 62 attached to the cup support 2100, and the cup main body 62 during its rotation. ) By pressing the flange 2105a, the rib processing mechanism 2032 for processing the rib 62e, the fall prevention mechanism 2033 for preventing the cup main body 62 from being pulled out during processing, and the curl portion 62c are wheels. A curl processing unit 2034 that is pressed against 2106 and deformed as shown in FIG. 22 is provided.

The rotation drive mechanism 2031 includes a motor 2310 as a drive source and a drive wheel 2311 that is rotationally driven accordingly. When the turntable 2012 is rotated so that the cup support 2100 is fed into the front of the processing apparatus 2030A, the driving wheel 2311 contacts the wheel 2106 of the cup support 2100 and the cup support 2100. ), The rotary cylinder 2102 is driven to rotate around the support shaft (2101).

The rib processing mechanism 2032 uses an air cylinder 2320 as a mold driving means and a mold pressing roller (form pressing member) 2321 driven in the radial direction of the cup support 2100 by the air cylinder 2320. Equipped. The mold pressing roller 2321 is rotatably supported around the shaft 2323 in the vertical direction by a holder 2322 attached to the piston rod 2320a of the air cylinder 2320. As shown in Fig. 46A, a concave groove 2321a having a cross-sectional shape complementary to the outer circumference of the flange 2105a is formed on the outer circumference of the mold pressing roller 2321.

When the rotary cylinder 2102 of the cup support 2100 is rotationally driven by the rotation driving mechanism 2031, the mold pressing roller 2321 is driven by the air cylinder 2320 in synchronization with the cup support 2100 so that It is pressed against the trunk part 62a. As a result, as shown in FIG. 46 (A), a part of the trunk portion 62a is sandwiched between the flange 2105a and the mold pressing roller 2321 to gradually form the rib 62e in the trunk portion 62a. do. When the mold pressing roller 2321 at least rounds the trunk portion 62a, the mold pressing roller 2321 is separated from the cup main body 62 to finish the processing of the rib 62e.

The fall prevention mechanism 2033 is provided with the air cylinder 2330 and the fall prevention plate 2331 driven by the air cylinder 2330 in the up-down direction. The fall prevention plate 2331 is mounted to the piston rod 2330a of the air cylinder 2330 via a bearing 2332, and is rotatable around the centerline of the piston rod 2330a. When the mold pressing roller 2321 of the rib processing mechanism 2032 is driven toward the cup main body 62, the fall prevention plate 2331 is driven downward in synchronism with this, and 62 g of thread heel of the cup main body 62 (Fig. 20). Thereby, during the formation of the rib 62e by the rib processing mechanism 2032, the floating of the cup main body 62 with respect to the cup support 2100 is prevented. When formation of the rib 62e is completed, the fall prevention plate 2331 is driven upward.

The curl part processing mechanism 2034 has an air cylinder 2340 as a press drive means, and the press roller 2341 as a press member driven by the air cylinder 2340 in the up-down direction. The roller holder 2342 is attached to the piston rod 2340a of the air cylinder 2340. By this roller holder 2242, the press roller 2341 is rotatably supported around the axis line extended in the radial direction of the cup main body 62 on the support 2100. The contact position of the press roller 2341 and the curled portion 62c is shifted by approximately 180 ° in the circumferential direction of the cup main body 62 with respect to the contact position of the mold pressing roller 2321 and the trunk portion 62a. In other words, the contact position of the press roller 2341 and the curl part 62c is set on the radially opposite side of the cup main body 62 with respect to the contact position of the mold pressing roller 2321 and the trunk part 62a.

When the die pressing roller 2321 of the rib processing mechanism 2032 is pressed against the torso portion 62a of the cup main body 62, and in synchronization therewith, the press roller 2341 moves in the air cylinder (shown in FIG. 47). It is driven downward by 2340 and pressed by the curl part 62c. As a result, the curl portion 62c is sandwiched between the press roller 2341 and the wheel 2106. By rotating the cup main body 62 in this state, the curl portion 62c is gradually deformed into the cross-sectional shape shown in FIG. When the press roller 2341 makes the curl part 62c more than one round, the press roller 2341 is driven upward by the air cylinder 2340, and the process of the curl part 62c is complete | finished.

Incidentally, a plurality of press rollers 2341 may be provided as shown in FIG. You may rotationally drive the press roller 2341 by drive means, such as a motor. The press roller 2341 may be driven by the mold driving means other than the air cylinder 3440. However, when the air cylinder 2340 is used as a press drive means, when the press roller 2341 rides over the step | step of the curl part 62c connected to the junction part of the trunk | drum 62a of the cup main body 62, Since the air stored in the inside of the air cylinder 2340 acts as a cushion with respect to the piston rod 2340a, and the press roller 2341 can be displaced in a direction away from the curl portion 62c, the curl portion 62c. Excessive pressing force does not act on the stepped portion of, and there is no fear that the curl portion 62c will be crushed more than necessary. Therefore, when driving the press roller 2341 by means other than the air cylinder 2340, when the press roller 2341 passes through the step of the curl part 62c by interposing a spring etc. in the transmission path of the driving force. It is desirable to allow the displacement of.

The processing apparatus 2030B has a point where the mold pressing roller 2321 of the rib processing mechanism 2032 is adjusted to press the cup main body 62 to the flange 2104a to form the rib 62d, and the curl processing mechanism 2034. ) Is the same as the processing apparatus 2030A except that is omitted. And since the rib 62d is bulging inward of the cup main body 62, the rib 62d is formed in the outer periphery of the mold pressing roller 2321 of the processing apparatus 2030B, as shown in FIG. 46 (B). Protrusions 2321b are provided, and concave grooves 2104b each having a cross-sectional shape complementary to the protrusions 2321b are formed on the outer circumference of the flange 2104a.

49 shows details of the pull attachment device 2040. The pull attaching device 2040 includes a spray gun 2041 for spraying an adhesive 64 (see FIG. 21) toward the bonding range BD of the body portion 62a of the cup body 62, and the spray gun 2041. Has an inspection apparatus 2042 for inspecting whether or not the adhesive 64 is normally sprayed from the nozzle 2410. In Fig. 49, the curl portion 62c of the cup main body 62 is simplified and depicted in a round shape.

The inspection apparatus 2042 has a camera 2421 for shooting a spray pattern in the shooting range 2420 set between the nozzle 2410 and the body portion 62a of the cup main body 62, and from the camera 2421. An AD converter 2422 for converting the output analog signal into a digital signal according to a predetermined condition, an arithmetic circuit 2423 for performing a predetermined calculation according to the signal output from the AD converter 2422, and the arithmetic circuit 2423 Has a determination circuit 2424 that determines whether the spray pattern is good or not, and a monitor 2425 that displays the determination result of the determination circuit 2424.

Since the adhesive 64 discharged from the spray gun 2041 is white, a black background plate (not shown) is provided behind the photographing range 2420. In the AD converter 2422, the image data of the shooting range 2420 output from the camera 2421 is binarized to an appropriate threshold value, whereby the image of the background plate is black, and the adhesive 64 Phases are distinguished as bags and input to the calculation circuit 2423. The calculation circuit 2423 calculates the ratio of the white part occupied in the image of the photographing range 2420 captured by the camera 2421.

Here, in order to detect the case where the adhesive 64 is ejected from the nozzle 2410 in an inappropriate direction as a defect, the photographing range 2420 has a white portion when the adhesive 6420 is shifted up and down with respect to the correct ejection direction. The area is set slightly larger than the spray width to reduce the area. Therefore, when the appropriate amount of adhesive 64 is discharged from the nozzle 2410 in the proper direction, the ratio of the white portion calculated by the calculation circuit 2423 falls within the appropriate range, and when the other amount is different, the ratio of the white portion is insufficient. Or excess. Then, the determination circuit 2424 determines that the spray pattern is good if the ratio of the white portion is within a predetermined allowable range, and otherwise determines that the spray pattern is bad. If it is determined that the spray pattern is defective, the cup main body 62 supplied to the pull attaching device 2040 at that time is removed from the production line of the cup 61 by the NG product removing device at the rear.

When the adhesive 64 and the cup main body 62 attached to the nozzle 2410 are included in the photographing range 2420, a detection error occurs, so that the photographing range 2420 is preferably set apart from both. The pull attachment device 2040 is not provided with a mechanism for rotating the rotary cylinder 2102 of the cup support 2100. After the cup support 2100 is conveyed from the processing apparatus 2030B to the pull attaching apparatus 2040, the rotating cylinder 2102 is rotated by inertia for a while, and the adhesion range (BD) is made using the inertia rotation. This is because the adhesive 64 can be evenly sprayed around the entire front of the back panel).

As shown in Fig. 50, the sleeve supply device 2050 includes a conveyor 2051 for conveying the sleeve 63 in a state of inverting up and down, and a pair of shutter mechanisms 2052 provided at the ends of the conveyor 2051. 2052 and an extrusion mechanism 2053. The shutter mechanism 2052 has a pair of shutters 2520 and 2520 supported to protrude on the outlet 2510 at the end of the conveyor 2051 by the air cylinders 2521 and 2521 and the conveying direction of the conveyor 2051. The outlet 2510 is opened and closed by operating in a direction perpendicular to each other. The extrusion mechanism 2053 has an air cylinder 2530 and a disk-shaped extrusion member 2531 attached to the piston rod 2530a. 50A is a cross sectional view, and FIG. 50B is a plan view near the end of the conveyor 2051.

When the cup main body 62 to which the adhesive 64 is applied in the pull attaching device 2040 is conveyed to just below the discharge port 2510 by the rotation of the turntable 2012, the shutter (the air cylinder 2521, 2521) 2520 and 2520 are opened, and the air cylinder 2530 is started, and the extrusion member 2531 is driven downward. Thereby, the sleeve 63 conveyed to the end of the conveyor 2051 is extruded downward, and falls so that it may be covered by the outer periphery of the cup main body 62 supported by the cup support 2100. After the supply of the sleeve 63, the shutters 2520 and 2520 are closed instantly. The extrusion member 2531 does not move below the shutter 2520. Therefore, there is no possibility that the extrusion member 2531 and the shutter 2520 may interfere.

51 shows a detail of the sleeve fitting device 2060. The sleeve alignment device 2060 drives the alignment jig 2061 disposed to face the thread hooves 62g of the cup main body 62 supported on the cup support 2100, and drives the alignment jig 2061 in the vertical direction. Has an air cylinder 2062. As shown in Fig. 52, the fitting jig 2061 includes a cylindrical jig main body 2610 having a lower end opening, a guide shaft 2611 mounted at the center of the jig main body 2610, and a jig main body 2610. A disc-shaped centering member 2612 that is accommodated in the hollow portion 2610a of the hollow and slides along the guide shaft 2611, and is mounted on an outer circumference of the guide shaft 2611 to guide the centering member 2612 to the guide shaft 2611. ) Has a coil spring 2613 pressed against the bottom stopper 2611a. A flange 2610b is formed at the lower end of the jig main body 2610. On the outer periphery of the lower end of the centering member 2612, a tapered surface-shaped center bet 2612a and a stepped part 2612b formed to surround the base end (the upper end in the drawing) of the center bet 2626a are provided. have. An enlarged portion 2611b is formed at the upper end of the guide shaft 2611, and the enlarged portion 2611b and the jig main body 2610 are fixed to the movable portion 2620 (see FIG. 51) of the air cylinder 2062.

When the cup main body 62 and the sleeve 63 are put below the sleeve alignment device 2060 by the rotation of the turntable 2012, the air cylinder 2062 is started and the alignment jig 2061 is driven downward. At this stage, the centering member 2612 is pressed against the stopper 2611a as shown on the right side of the center line CL, so that the center bet 2626a and the stepped portion 2612b of the outer periphery of the jig body 2610 are provided. It protrudes below the flange 2610b. Therefore, as shown by the imaginary line in FIG. 52, even if the sleeve 63 is covered with the center shifted with respect to the cup main body 62, and the curl part 63a is mounted on the thread heel 62g of the cup main body 62, First, the center bet 2626a of the centering member 2612 contacts the curl portion 63a so that the sleeve 63 is centered with the cup body 62.

Thereafter, as the alignment jig 2061 is further lowered, the stepped portion 2612b collides with the thread hooves 62g of the cup main body 62 and the centering member 2612 is press-fitted into the jig main body 2610. The flange 2610b of the jig body 2610 is in contact with the curl portion 63a of the sleeve 63, and the sleeve 63 is press-fitted to the curl portion 62c side of the cup body 62 by an appropriate amount. Thereby, the cup main body 62 and the sleeve 63 reliably contact in the adhesion range BD, and both are bonded correctly. When the centering jig 2061 descends to a predetermined position, the centering jig 2061 is pulled up to the original position in preparation for the next combination of the cup main body 62 and the sleeve 63. Then, in order to position the curl portion 63a of the sleeve 63 on the upper side (curl portion 62c side) than the thread heel 62g of the cup body 62, the centering member 2612 is maximally inserted into the jig body 2610. The stepped part 2612b retreats upwards than the flange 2610b when pushed in.

53 shows the details of the inspection apparatus 2070. The inspection apparatus 2070 has a rotary drive mechanism 2071, a transmissive photosensor 2072 for inspecting whether the sleeve 63 is properly mounted with respect to the cup main body 62, and the sleeve 63 is correctly placed. It has a laser distance measuring sensor 2073 for checking whether it is assembled. The rotation drive mechanism 2071 is the same as that of the processing apparatus 2030A described above, and the drive wheel 2711 driven to rotate by the motor 2710 is brought into contact with the wheel 2106 of the cup support 2100 to support the cup support. The rotating cylinder 2102 of 2100 is rotated.

The photosensor 2072 has a pair of light emitting parts 2720 and a light receiving part 2721 arranged to face the radial direction of the cup main body 62. The light emitting part 2720 emits a strip-shaped inspection light (hatching part in the drawing) of a predetermined width toward the thread hooves 62g of the cup main body 62. The light receiving unit 2721 outputs a signal corresponding to the received light amount of the inspection light to the determination device 2074. If the centering of the sleeve 63 by the alignment device 2060 mentioned above fails, the sleeve 63 will protrude more than the threaded sole 62g, and the inspection light from the light emitting part 2720 will be cut off larger than normal. Thus, the judging device 2074 monitors a change in the received light amount of the inspection light according to the signal from the light receiving unit 2721, and if the change is larger than a predetermined allowable range, the determination device 2074 judges that the sleeve 63 is not assembled and attaches it to the monitor 2075. Display the result.

Moreover, the laser distance measuring sensor 2073 irradiates the laser beam narrowed toward the outer periphery of the sleeve 63, and outputs the signal according to the time delay until the reflected light is detected. If the sleeve 63 is not formed in a predetermined taper shape due to a failure in joining the blank 3 ', or the like, distortion occurs on the outer circumference, so that the time until the laser light is reflected is changed by the rotation of the sleeve 63. It will fluctuate greatly. Thus, the judging device 2074 monitors the time change until the reflection of the laser light is detected, and if the change is larger than the predetermined allowable range, judges that the shaping failure of the sleeve 63 is determined and reports the result to the monitor 2075. Display.

If it is determined that the assembly or shaping of the sleeve 63 is poor in the inspection apparatus 2070, the cup 61 supplied to the inspection apparatus 2070 at that time is the cup 61 by the NG product excluding device at the rear. Is excluded from the production line.

54 and 55 show details of the discharge device 2080. The discharge device 2080 includes a gear box 2081 and a magazine 2082 rotatable about the output shaft 2810 of the gear box 2081. A port 2820 having a tapered hole 2080a to which the cup 61 can be fitted is attached to the magazine 2082 at intervals of 90 ° in the rotation direction of the magazine 2082. The sprocket 2812 is attached to the input shaft 2811 of the gear box 2081. The sprocket 2812 is connected to the drive mechanism 2013 of the turntable 2012 via the transmission mechanism 2084 which combined the chain 2840 etc. (refer FIG. 40 and FIG. 41). When the turntable 2012 is driven to rotate 30 °, the magazine 2082 rotates 90 ° in the direction of the arrow R in Fig. 54 so as to rotate the turntable 2012 so that the empty port 2820 is introduced just above the cup support 2100. Rotation of magazine 2082 is involved.

Directly below the port 2820 is an air supply device (not shown) connected to the lower opening of the air flow path formed on the centerline of the support shaft 2101 of the cup support 2100 to supply compressed air to the air flow path. Is installed. The compressed air supplied in the support shaft 2101 blows from the upper end of the support shaft 2101 and feeds the cup 61 into the taper hole 2820a of the port 2820 introduced above. As a result, the cup 61 is moved from the cup support 2100 to the port 2820.

The cup 61 supported by the port 2820 is sent to the cup aggregator 2085 by the magazine 2082 rotating three times by 90 °. The cup aggregator 2085 pulls the cup 61 out of the port 2820 by operating the claw 2850 that engages the curl portion 62c of the cup 61 in the horizontal direction in the actuator 2851 and the magazine 2853. It is integrated in.

As shown in FIG. 54, the inner surface inspection apparatus 2090 of the cup 61 is provided in the opposite position with the magazine 2082 between the cup accumulator 2085 of the magazine 2082. In FIG. The inner surface inspection device 2090 photographs the image with the camera 2092 while irradiating the inner surface of the cup 61 supported by the port 2820 with a ring-shaped illuminator 2091, and the image output from the camera 2092. The data is subjected to predetermined processing by the image processing apparatus 2093 to check for contamination or shape defects on the inner surface of the cup 61.

In the manufacturing apparatus of the heat insulation container mentioned above, the turntable 2012 and the drive mechanism 2013 are the conveying apparatus in the manufacturing apparatus of 7th invention, and the rotation drive mechanism 2031 is a rotation drive means, and the rib processing mechanism 2032 ) Is a rib processing apparatus, the curl processing apparatus 2034 is a curl processing apparatus, the air cylinder 2062 is a jig drive means, the inspection apparatus 2070 is a combination inspection apparatus and a sleeve inspection apparatus, the photosensor 2072 Is the height information detecting means, the laser distance measuring sensor 2073 is the distance information detecting means, the determining apparatus 2074 is the determining means and the molding determining means, and the cup support 2100 is the container support and the rotating cylinder ( 2102 is a rotating body, and the flange 2610b functions as a press-fit part, respectively. In contrast with the eighth invention, the rotary drive mechanism 2031 is a rotary drive means, the cup support 2100 is a container support, the rotary cylinder 2102 is a rotary body, and the flange 2105a is provided. As the side wall receiving member, the wheel 2106 is the curl receiving member, the air cylinder 2320 is the mold driving means, the mold pressing roller 2321 is the mold pressing member, and the air cylinder 2340 is the press driving means, The rollers 2234 each function as a press member.

The container manufacturing apparatus of this invention is not limited to the said embodiment, You may implement in various forms. For example, the rib processing mechanism 2032 and the curl processing mechanism 2034 may be provided in separate stations. The inspection apparatus 2042 or 2070 may be omitted.

According to the above manufacturing apparatus, since processing of the curl part of a container main body, ribs, etc. to a side wall, and joining of the container main body and sleeve which received these processes continue in the same apparatus, a heat insulation container can be manufactured efficiently. . In addition, in the case where the sleeve alignment device is provided, the combination failure due to the center misalignment between the sleeve and the container body can be eliminated, and the yield at the time of manufacturing a heat insulation container can be improved. In addition, the reliability of the manufacturing apparatus can be improved by providing a means for inspecting the quality of the combination of the sleeve and the container body, the quality of the molding of the sleeve, and the quality of the spouted adhesive.

According to the present invention, it is possible to reduce the possibility of cracking in the sleeve member, and also, when the container body and the sleeve are assembled together, the container body is less likely to be caught in the inward curling portion, thereby enabling smooth assembly.

Claims (4)

A container body having a side wall and a bottom portion disposed at a lower end side of the side wall; A sheet-like sleeve member, an inward curl portion formed by curling the sleeve member toward the center side of the container at a lower end side thereof, an adhesive portion adhered to the side wall of the container body at an upper end side thereof, and the inward curl portion and the At least a portion between the adhesive parts is provided with a sleeve disposed while securing a space outside the side wall, The radius of curvature of the sleeve member in the inwardly curled portion is set in the range of 0.6 ~ 2.0mm. The method of claim 1, Said curvature radius is set in the range of 1.1-1.5 mm. The heat insulation container characterized by the above-mentioned. The method according to claim 1 or 2, Paper is used as said sleeve material, The heat insulating container characterized by the above-mentioned. The method of claim 3, Insulation container characterized in that the basis weight of the paper is set in the range of 150 ~ 400g / ㎡.