JPH06239309A - Manufacturing device for multiple linked up container - Google Patents

Abstract

PURPOSE:To completely seal multiple linked cup containers including the step parts at the flange parts when multiple linked cup containers, which are constituted in such a manner that a plurality of paper cup containers are covered and linked at the same time by a holder made of a paper board, are manufactured. CONSTITUTION:While paper cup containers in which a content is filled are continuously carried under a condition in which the paper cup containers are mounted on a retainer, a holder made of a paper board is fed sheet by sheet. First, a thermoplastic resin on the bonding surface is molten at a pre-heat sealing unit 8, and at the following main sealing unit 11, the flange parts of the paper cut containers are mutually pressed twice and heat-sealed by a primary sealing head 12 and secondary sealing head 13, and are cooled by a cooling head 14. By this method, the holder can be completely sealed to the flange part whole body including a step part which is at the flange part of the paper cup container.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for manufacturing a multiple cup container in which a plurality of paper cup containers are put together for sale.

[0002]

2. Description of the Related Art The applicant of the present application has already applied for a technique relating to a multiple-type container in which a plurality of cup containers are covered and connected by a single paperboard holder and a manufacturing apparatus therefor (see No. 4-69390). Of these, the manufacturing apparatus continuously conveys a predetermined number of cup containers on a retainer, while supplying a single paperboard holder on the predetermined number of cup containers on each retainer,
This holder is pressed by a heat-sealing device to cover a predetermined number of cup containers and at the same time connect a predetermined number of cup containers.In this heat-sealing device, a transmission that moves at the same speed as the retainer is used. The holder is pressed by the heat belt, and the inner surface of the holder is heat-sealed to the flange portion of the cup container.

[0003]

By the way, when the cup container is a paper cup container, the flange portion is formed by top-curling the body portion, but since the body portion has the body sticking portion, the flange portion is formed. Will cause a step difference for one sheet of paper. Therefore, if such a paper cup container and a paperboard holder are heat-sealed by the above-described manufacturing apparatus, the stepped portion will inevitably have a sealing failure. The presence of this defective seal portion is convenient because the air permeability is good when the content is natto, but when the content is dessert such as yogurt, pudding, jelly, etc. It is not preferable because it causes decay.

The present invention has been made in view of the above circumstances, and an object thereof is an apparatus for manufacturing a multiple cup container capable of manufacturing a completely sealed multiple paper cup container. To provide.

[0005]

In order to achieve the above-mentioned object, the present invention continuously conveys a predetermined number of paper cup containers filled with contents in a state of being placed on a retainer,
The paperboard holders are supplied one by one onto the prescribed number of paper cup containers placed on each retainer, and the holders are sealed to the flanges of the paper cup containers to cover the prescribed number of paper cup containers at the same time. In the continuous cup container manufacturing device, in the process of sealing the holder to the flange part of the paper cup container, the preheat seal part that applies heat from above the holder in a pressed state by the heat transfer belt that rotates at the same speed as the retainer, and the retainer. A seal plate having a shape corresponding to the flange portion of the upper paper cup container is provided, and a retainer and a main seal portion that applies heat in a pressed state to the flange portion from above the holder by a seal head that moves at a constant speed are arranged side by side. It is characterized by that.

In the main sealing portion, a plurality of the sealing heads are provided so that the same paper cup container can be sealed a plurality of times, and the sealing plate of each sealing head is composed of projections which are discontinuous in the circumferential direction. It is also possible to adopt a configuration in which the respective projections are arranged so that the sealing surface of each sealing head as a whole covers the flange portion of the paper cup container when performing sealing once.

[0007]

In the apparatus for manufacturing a multiple cup container of the present invention having the above-mentioned structure, heat is applied to the inner surface of the holder and the flange of the paper cup container by the heat transfer belt at the preheating seal portion, and this heat causes thermoplasticity of the two. The resin becomes molten. And the preheated holder and paper cup container
In the subsequent main seal portion, the seal head is heat-sealed at the portion corresponding to the flange portion.

[0008]

Embodiments of the present invention will be described below with reference to the drawings.

1 to 4 show an apparatus for manufacturing a multiple cup container as an embodiment of the present invention. FIG. 1 is a plan view of the left half, FIG. 2 is a side view of the same, and FIG. 3 is a right view. A half plan view and FIG. 4 are side views as well.

Reference numeral 1 denotes a paper cup supply unit, which sequentially transfers the paper cup containers set in a stacked state by an infeed conveyor 2 toward a distribution unit. Reference numeral 3 denotes a star wheel, which feeds the transported paper cup container toward the transporting device 4 by a predetermined number by arcuate notches (not shown) provided around the paper cup container. The transfer device 4 is provided with a transfer chain that rotates up to a side gluing part described later, and a plurality of retainers having a plurality of (for example, three) circular holes are attached to the transfer chain at regular intervals. Has been
When the paper cup container sorted by the star wheel 3 falls into this circular hole, the paper cup container is placed on the retainer at its flange portion.

Reference numeral 5 denotes a filling section for filling a liquid content into a paper cup container which is moved by a transport chain while being placed on a retainer. 6 is a paper feeding section of the holder, and a magazine 7
The paperboard holders set above are sequentially supplied one by one onto a plurality of paper cup containers which are placed on the respective retainers and moved.

Reference numeral 8 denotes a preheat seal portion having a heat transfer belt 9 which rotates at the same speed as the retainer, and a heater 10 biased downward by a spring is provided inside the heat transfer belt 9,
Heat is applied from above the holder on the paper cup container in a pressed state. As the heat transfer belt 9, it is preferable to use Teflon cloth from the viewpoint of its thermal conductivity and durability. In this preheat seal portion 8, heat is applied to the inner surface of the holder and the flange portion of the paper cup container, and this heat causes both thermoplastic resins to be in a molten state.

Reference numeral 11 is a main seal portion, and in this embodiment,
The primary seal head 12, the secondary seal head 13, and the cooling head 14 are mounted side by side on one frame 15 at the same intervals as the retainer. For example, the primary seal head 12 is attached to the frame 15 so as to be vertically movable in the configuration shown in FIG. That is, in FIG. 5, 12a is a seal plate provided corresponding to the number of circular holes 16a of the retainer 16, 17 is a heater that transfers heat to the seal plate 12a, and 18 is a heater 17 attached via a heat insulating member 19. As a mounting member, the mounting member 18 is connected to the central cylinder 20 and the LM guides 21 on both sides, and by operating the cylinder 20, the lower portion of the mounting member 18 moves up and down along the LM guide 21. Has become. In addition, the secondary seal head 13 and the cooling head 14
Is also attached to the frame 15 so as to be vertically movable.

The frame 15 to which the three heads are vertically movable is driven by a cam mechanism or the like, and the retainer 16 is moved to the right at the same speed as the retainer 16.
After moving by one pitch, the operation of moving horizontally to the left and returning to the original position is repeated. As a result, the three heads perform a so-called box motion in which, when the holders are pressed down, the retainers move up by one pitch and then return to their original positions, and then the heads move down again to press the next holder. Driven to.

The seal plate 12a of the primary seal head 12 and the seal plate 13a of the secondary seal head 13 are the retainer 1
Three of them are provided so as to correspond to the flange portions of the three paper cup containers placed on No. 6, and the respective seal plates 12a and 13a are arranged at staggered positions as shown in FIGS. 6 and 7. Discontinuous protrusions A and B for pressing the flange portion of the paper cup container are provided in a ring shape. That is, in the seal plate 12a, the even numbers (2, 4,
6) has a projection A, while the seal plate 13a has a projection B at odd numbered positions (1, 3, 5, ...) In FIG. Further, the cooling head 14 presses the surface of the holder with a solid plate 14a in which water is circulated.

The paper cup container and the holder on the retainer 16 which have been preheated in the preheat seal portion 8 and the thermoplastic resin on the joint surface thereof being melted are sent to the main seal portion 11, are the primary seal head 12 and the secondary seal head. By the box motion in which the cooling head 13 and the cooling head 14 are integrated, heat sealing by the protrusion A of the seal plate 12a, heat sealing by the protrusion B of the seal plate 13a, and cooling by the solid plate 14a are sequentially performed and completely sealed. Here, since the heat sealing is performed by pressing the flange portion of the paper cup container twice by the projections A and B which are positioned alternately, the heat sealing is surely performed even in the step portion of the flange portion.

A plurality of paper cup containers, which are capped by the holder and connected at the same time as described above, are sent to the side gluing section 22 while being placed on the retainer 16. In the side gluing section 22, the paper cup container is pushed up by the lifting conveyer while still in the retainer 16, and the hot melt adhesive is applied to the upper portions of both side surfaces of the paper cup container.
The paper cup container is then removed from retainer 16,
The side folding section 23 is transferred onto the discharge conveyor 24, and both sides of the holder are bent, and the side crimping section 25
The paper is discharged while being adhered to both sides of the paper cup container.

When the holder has high strength and it is not necessary to provide a bent portion, it is sufficient to prevent the side glued portions 22 and below from operating, as described in the previous application. Further, the manufacturing apparatus of the present invention can perform aseptic filling by covering a necessary portion with a sterile chamber.

Although the present invention has been described based on the embodiment, the present invention is not limited to the above embodiment.

For example, in the above embodiment, two primary seal heads and two secondary seal heads are provided so that the same paper cup container is sealed twice, and the seal plates of the respective seal heads are arranged at alternate positions. By providing a ring-shaped discontinuous protrusion that presses the flange part of the paper cup container with, it was possible to ensure heat sealing even at the stepped part of the flange part, but depending on the paper thickness of the holder and the ring width, the flange In some cases, the seal plate of the seal head may be formed in a ring shape without protrusions, because the seal can be surely performed over the entire portion. On the contrary, three or more seal heads each having a protrusion with a small circumferential width formed on the seal plate are provided, and the entire flange portion of the paper cup container is heat-sealed as a whole by performing sealing three or more times. It is also possible.

Further, in the above embodiment, the shape of the paper cup container is premised on that the body portion and the flange portion are circular, but the shape may be, for example, a quadrangle with rounded corners. In this case, it goes without saying that the shape of the hole formed in the retainer and the shape of the seal plate of the seal head are also adapted to this.

[0022]

As described above, in the apparatus for manufacturing a multiple cup container according to the present invention, a paper cup container filled with contents is placed on each retainer while being continuously conveyed. The paperboard holders are supplied one by one onto a specified number of paper cup containers, and the thermoplastic resin on the adhesive surface is first melted in the preheat seal part, and then the flange part of the paper cup container is supported in the subsequent main seal part. Since the portion to be heat-sealed is pressed by the seal head, it is possible to seal the holder to the entire flange part including the stepped part in the flange part of the paper cup container. A continuous cup container can be manufactured.

[Brief description of drawings]

FIG. 1 is a plan view of the left half showing an apparatus for manufacturing a multiple cup container.

FIG. 2 is a side view of FIG.

FIG. 3 is a plan view of the right half of the manufacturing apparatus for the multiple cup container.

FIG. 4 is a side view of FIG.

FIG. 5 is a side view showing a mounted state of the primary seal head.

FIG. 6 is a diagram for explaining an arrangement state of protrusions on the seal plate of the primary seal head.

FIG. 7 is a diagram for explaining an arrangement state of protrusions on the seal plate of the secondary seal head.

[Explanation of symbols]

 8 Preheating Sealing Part 9 Heat Transfer Belt 11 Main Sealing Part 12 Primary Sealing Head 12a Sealing Plate A Protrusion 13 Secondary Sealing Head 13a Sealing Plate B Protrusion 14 Cooling Head

Claims (2)

[Claims] 1. While continuously transporting a predetermined number of paper cup containers filled with the contents on a retainer,
A paperboard holder is supplied one by one onto a predetermined number of paper cup containers placed on each retainer, and this holder is sealed to the flange portion of the paper cup container to cover the predetermined number of paper cup containers and simultaneously connect them. In the continuous cup container manufacturing device, in the process of sealing the holder to the flange part of the paper cup container, the preheat seal part that applies heat from above the holder in a pressed state by the heat transfer belt that rotates at the same speed as the retainer, and the retainer. A seal plate having a shape corresponding to the flange portion of the upper paper cup container is provided, and a retainer and a main seal portion that applies heat in a pressed state to the flange portion from above the holder by a seal head that moves at a constant speed are arranged side by side. An apparatus for manufacturing a multiple cup container, which is characterized in that 2. The main sealing portion is provided with a plurality of the sealing heads so that the same paper cup container can be sealed a plurality of times, and the sealing plate of each sealing head is constituted by a projection discontinuous in the circumferential direction. 2. The multiple cup container manufacturing apparatus according to claim 1, wherein each of the seal heads is provided with protrusions so that the sealing surface of each seal head covers the flange portion of the paper cup container as a whole when the sealing is performed once. .