JPH08148134A - Battery pack and packing method - Google Patents

Abstract

PURPOSE: To facilitate automation and efficiently mass-produce a battery pack at a low cost by aligning a prescribed number of batteries on a label having fold sections at both ends not to be rolled. CONSTITUTION: Batteries 1... aligned on a label 2 are stabilized and are not rolled between fold sections 2a at both ends. The length of the label is RX(n-1)+2d, where R is the diameter of the battery 1, (n) is the number of batteries 1 in one pack, and (d) is a proper size of about R/2 at most. The batteries 1 are then conveyed to a bagging station and sandwiched from above and below by a heat-contractive film 3 gradually folded into two. A battery group proceeds to a seal cut station, side portions of the films 3a, 3b vertically overlapped around the battery group are seal-cut and separated except for one side portion where they are connected, and the upper and lower films 3a, 3b are heat-fused. The battery group passes through a hot-air furnace at a heat station, and the film 3 is heat-contracted to complete a battery pack.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a battery package and a packaging method in which a plurality of general cylindrical manganese batteries or alkaline batteries are packed in a shrink package, and in particular, a label on which a trade name is printed is attached to a battery group. The present invention relates to a technology of shrink-wrapping the whole while being attached to one side.

[0002]

2. Description of the Related Art As is well known, single, single, two,
Common batteries such as AA and AAA are often sold over the counter in a form of being packaged in a plurality. The number of batteries in one package is various, 2, 4, 6, 8, 1
There are many types such as 2 and 16. There are several types of packaging forms, and they are roughly classified into a form that uses a large size thick mount for hanging sales and a form for stacking sales that does not use a large mount that protrudes from the battery group. It
There are various types such as blister packaging, skin pack packaging, and shrink packaging depending on the packaging material and packaging method used. It is usually packaged at the stage of factory shipment according to various sales forms.

The object of the present invention is a shrink wrap for stacking and selling without using a large mount. In this type of conventional shrink wrapping, a plurality of cylindrical batteries are put in a heat-shrinkable tube to be arranged in parallel and aligned, and a substantially rectangular label having a product name or the like printed on the surface is put in the tube to make the It is attached to one side of the battery group, and then the tube is heat-shrinked to integrally wrap the battery group together with the label.

[0004]

The above-mentioned conventional shrink wrapping has a problem that it is performed manually, is inefficient and expensive, and there is a strong demand to automate it. In the case of a large-sized battery that can be conveyed upright like AA and AA, it is easy to shrink-wrap a plurality of them together by an automated line, and it has been conventionally performed. However, the automated packaging line could not put the label in the packaging. Therefore, conventionally, shrink wrapping with a label is manually performed.

The present invention has been made in view of the above-mentioned conventional problems, and an object thereof is to provide a battery package and a packaging method capable of easily automating the packaging work.

[0006]

In the battery package of the present invention, a plurality of cylindrical batteries are arranged in parallel so that their cylindrical surfaces are in contact with each other, and a substantially rectangular label having a product name or the like printed on the surface is described above. A battery package attached to one side of a battery group, wherein the battery group and the label are entirely shrink-wrapped with a heat-shrinkable film, and the label is made of a relatively thick paper material having shape retention. , Its length is R × (n−
1) + 2d (where R is the diameter of the cell and n is 1
The number of batteries in the package, d is an appropriate dimension of about R / 2 at the most), and the dimension d of both ends of the label.
Is bent to the back side, and the bent portions at both ends are bent so as to follow the cylindrical surfaces of the batteries at both ends of the battery group. In addition, in the above-mentioned label, a convex strip that is convex on the back surface side may be bent and formed so as to enter between the aligned batteries.

According to the packaging method of the present invention, when the battery package is manufactured, the label having the both-end bent portions formed in advance is placed on a workbench with its surface facing down, and N batteries are aligned and placed on a portion between the both-end bent portions, and shrink-wrapped together with the label in a state where the battery groups are prevented from rolling at the both-end bent portions.

[0008]

When the label is placed on the workbench and a predetermined number of batteries are aligned and placed on the workbench, the battery group fits exactly between the bent portions at both ends of the label. Since the label is a paper material that is relatively thick and retains its shape, the folded parts at both ends rise up appropriately from the flat part in the middle, so the batteries located at both ends of the group come into contact with this bent part. , Its rise is an obstacle and it doesn't roll. In this way, a certain number of batteries are aligned so that they do not roll on the label, so they are conveyed horizontally on a conveyor etc. and sent to the shrink packaging line, and at the bag making station, the heat-shrinkable film is used to label the battery group and label. The whole can be wrapped up, the three sides of the film wrapped at the next seal cutting station can be seal-cut, and the film can be heat-shrinked at the next heating station. By forming the ridges, the stability of the battery on the label is further increased.

[0009]

FIG. 1 shows a battery package and a packaging method according to an embodiment of the present invention. In this example, four batteries 1 are shrink-wrapped together with a label 2 with a heat-shrinkable film 3. The labels 2 are stacked and stocked in a flat state with no bent portions at both ends. A product name or the like is printed on the surface (lower surface in the figure). When each label 2 is transferred one by one to the work table conveyor by the handling device, by passing through the folding device provided on the way, the predetermined size portions at both ends are bent to the back surface side (upper surface side in the figure). Thus, the bent portions 2a at both ends are formed.

At the next aligning station, the four batteries 1 are aligned and placed on the label 2 with the bent portion 2a placed on the conveyor. Details of this state are shown in FIG. As shown in the figure, the total length of the label 2 is about four times the diameter R of the battery 1, and the dimension portions slightly shorter than R / 2 at both ends thereof are the bent portions 2a, and the dimension portion slightly longer than the intermediate 3R. Is a plane. The angle θ of the bent portion 2a is 90 degrees or less.

Therefore, the four batteries 1 placed in line on the label 2 are stable between the bent portions 2a at both ends and do not roll. In that state, the heat-shrinkable film 3 is conveyed to the next bag-making station and gradually sandwiched into a sandwich from above and below. In FIG. 1, 3
Reference numeral a denotes a film that has entered under the label 2, and reference numeral 3b denotes a film that is folded in two and covers the battery group.

Next, proceed to the seal cutting station,
The films 3a and 3b, which are vertically stacked around the battery group, are separated from the other by sealing-cutting the other three side parts except for one side part where they are continuous, and heat-sealing the upper and lower films. To do. In FIG. 1, x, y, z
Indicates a seal cut line on three sides. Next, it is conveyed to a heating station and passes through a warm air oven. At this time, the film 3 wrapping the battery group and the label 2 is heat-shrinked, and a tight battery package is completed.

FIG. 2 (b) shows a bent portion 2 at both ends of the label 2.
7 shows another example of the form of a. This is a curved surface with no clear polygonal lines. In this embodiment, an AA having a small diameter is used.
Type and AAA batteries are suitable. In the embodiment shown in FIGS. 2 (c) and 2 (d), in addition to forming the both-end bent portions 2a on the label 2, the label 2 is convex on the back surface side so as to be inserted between the aligned batteries 1. The convex ridge 2b is formed by bending. This is suitable when a large number of small-diameter batteries 1 are made into one pack. In the example of (c), the ridge 2b is provided at the center of the eight batteries 1, and the ridges 2b are divided into four to stabilize the batteries 1. In the example of (d), a large number of ridges 2b are formed in accordance with the arrangement pitch of the batteries 1 (the whole is formed in a corrugated plate shape) to stabilize the batteries 1 one by one.

[0014]

According to the present invention, a predetermined number of batteries are arranged so as not to roll on a label having bent portions at both ends. Therefore, the batteries are horizontally conveyed by a conveyor or the like and fed into a shrink packaging line, It is easy to automate by wrapping the whole battery group and label with a heat shrinkable film at the bag making station, sealing the 3 sides of the film wrapped at the next seal cutting station, and heat shrinking the film at the next heating station. It becomes possible. Therefore, this battery package can be mass-produced efficiently and at low cost.

[Brief description of drawings]

FIG. 1 is a schematic view showing a shrink packaging process of a battery according to an embodiment of the present invention.

FIG. 2 is a front view showing some other examples of the relationship between the label and the aligned battery in the present invention.

[Explanation of symbols]

1 Battery 2 Label 2a Both ends bent part 2b Convex strip 3 Heat shrinkable film x, y, z Seal cut line

Claims (3)

[Claims] 1. A plurality of cylindrical batteries 1 are arranged in parallel so that their cylindrical surfaces are in contact with each other, and a substantially rectangular label 2 having a product name printed on the surface is attached to one side of the battery group. A group is a battery package which is shrink-wrapped entirely with the heat-shrinkable film 3 together with the label, and the label is made of a relatively thick paper material having a shape-retaining property and has a length of R × (n. −1) + 2d (where R is the diameter of the battery, n is the number of batteries in one package, and d is an appropriate size of approximately R / 2 at the most), and the both ends of the label are A battery package in which portions substantially corresponding to the dimension d are respectively bent to the back surface side, and both end bent portions 2a are bent so as to follow the cylindrical surfaces of the batteries at both ends of the battery group. 2. In the label 2, a ridge 2 which is convex on the back surface side so as to enter between the aligned batteries 1.
The b is formed by bending.
The battery package according to. 3. In manufacturing the battery package according to claim 1 or 2, the label 2 on which the both-end bent portions 2a are formed in advance is placed on a workbench with its surface facing down. , N pieces of batteries 1 are aligned and placed on a portion of the label between the both-end bent portions 2a, and shrink-wrapped together with the label in a state in which the both-end bent portions prevent rolling of the battery group. A packaging method characterized by.