JPH01167018A - Packaged state and packaging method for ring shaped article - Google Patents

Abstract

PURPOSE:To package the whole body of a ring shaped article and prevent the inner hole from closing, by pushing a plastic film on one end surface in the inner hole of the article, pushing out the plastic film in a plastic film on the other end surface, and heat-sealing the plastic films on one end surface and the other end surface. CONSTITUTION:By a clamp claw 5, a plastic film P on one end surface is gripped; after making the plastic film P droop, a pushing rod 6 is made to pass through the clamp claw 5 and is inserted in an inner hole B of a ring shaped article S; by the pushing rod 6, the plastic film P on one end surface is pushed and extruded in a plastic film P on the other end surface. Then, when a heat-sealing member 7 is closed to the plastic film P on the other end surface of the ring shaped article S, the heat-sealing member 7 and the plastic film P are pressed to a heat resistant rubber 9 on a receiving rod 8; the plastic film P is heat-sealed by the heat-sealing member 7.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application This invention relates to a package for a ring-shaped product, in which the entire ring-shaped product is wrapped with a plastic film, and a method for packaging the same.

Structure of the conventional example and its problems When wrapping the entire ring-shaped product with a plastic film, the ring-shaped product (S) is generally packaged between two plastic films (P) as shown in FIGS. 21 and 22. The plastic film (P) is heat-sealed along its edges and side edges. Therefore, heat seal lines (e) are formed on the edges and side edges of the plastic film (P). Then, by heat-shrinking the plastic film (P) in a shrink tunnel, the entire ring-shaped product (S) can be tightly packaged. Heat seal wire <e> is a ring-shaped product (S)
Extends in the cross-sectional direction along the outer circumferential surface of the

However, conventionally there have been problems associated with transporting the packages. When the entire ring-shaped product (S) is packaged, the inner hole (B) of the ring-shaped product (S) is closed by the plastic film (P), and the transport rod is inserted into the inner hole (B) of the ring-shaped product (S). cannot be inserted. It is also not possible to insert the fork of a forklift into the inner hole (B) of the ring-shaped product (S). Therefore, for this package, a conveyor bar and a forklift cannot be used to convey it, and the package must be conveyed by hand.

Therefore, when the weight of the ring-shaped product (S) is large,
There was a problem in that transportation required labor and time.

In addition, as shown in Figure 23, narrow craft paper (C
) is sometimes used. When the kraft paper (C) is gate-wound around the outer peripheral surface, both end surfaces, and the inner peripheral surface of the ring-shaped product (S), the kraft paper (C) forms a ring-shaped product (S).
) can be packaged in its entirety, and the transport rod and the fork of a forklift truck can also be inserted into the inner hole (B) of the ring-shaped product (S). However, kraft paper (C
) had to be wrapped many times, which had the problem of a long packaging time and a high material cost for the kraft paper (C). Furthermore, when unpacking this, the kraft paper (C) must be torn off many times, resulting in poor unpacking performance.

Purpose of the Invention Therefore, the present invention has been made for the purpose of solving the above-mentioned conventional problems, packaging the entire ring-shaped product with a plastic film, and preventing the inner hole of the ring-shaped product from being closed by the plastic film. It is something that

According to the present invention, a package is provided in which the outer peripheral surface, both end surfaces, and inner peripheral surface of a ring-shaped product are covered with a series of plastic films. In the case of this package, a unique heat-seal line is formed in the plastic film, and the heat-seal line extends in an annular manner along the inner peripheral edge of one end surface of the ring-shaped product.

To obtain this package, the outer peripheral surface of a ring-shaped product is covered with a plastic film, the product is wrapped in a sleeve, and the plastic film is made to extend in a cylindrical shape from both ends of the product. Then, the plastic film on the one end side is pushed into the inner hole of the product and extruded into the plastic film on the other end side. Thereafter, the plastic film on one end surface and the plastic film on the other end surface may be heat-sealed.

DESCRIPTION OF EMBODIMENTS The present invention will be described in detail below. FIG. 1 shows an embodiment of the invention. ° In the case of this package, the outer peripheral surface and both end surfaces of the ring-shaped product (S) are covered with a series of plastic films (P), and the entire ring-shaped product (S) is packaged. Inner hole (B) of product (S)
) is not closed. Then, in the inner hole (B) of the ring-shaped product (S), a series of plastic films (
The inner peripheral surface of the ring-shaped product (S>) is covered with P). Therefore, when transporting this package, the transport rod cannot be inserted into the inner hole (B) of the ring-shaped product (S). Yes, forklift forks can be made into ring-shaped products (S
) can also be inserted into the inner hole (B) of the container, depending on the convenience of transportation. In addition, two types of heat-sealing wires are attached to the plastic film (P) (t2).
is formed, the heat seal line (il) extends in the longitudinal cross-sectional direction along the outer peripheral surface, both end surfaces, and inner peripheral surface of the ring-shaped product (S), and the heat-seal line (i2) extends along the outer peripheral surface, both end surfaces, and inner peripheral surface of the ring-shaped product (S). S) extends in an annular shape along the inner peripheral edge of one end surface.

The package shown in FIG. 1 can be automatically packaged. First, as shown in FIG. 2, a ring-shaped product (S) is vertically arranged and sent by a conveyor (1). Then, when the button (2) is pressed against the ring-shaped product (S) and pushed out toward the plastic film (P), the ring-shaped product (S) crosses the plastic film (P) and is received by the conveyor (3). is passed.

After that, the plastic film (P) is sandwiched between horizontal heat seal bars (4), and when the plastic film (P) is heat sealed and melted by the heat seal bar (4), a heat seal line is formed on the edge of the plastic film (P). (b) is formed. Heat seal wire (tI)
extends over the entire width of the plastic film (P). Therefore, the outer peripheral surface of the ring-shaped product (S) can be covered with the plastic film (P) and packaged in a sleeve. Furthermore, the plastic film (P) has a larger width than the ring-shaped product (S). Therefore, as shown in FIG. 7, the plastic film (P) can be made to protrude in a cylindrical shape from both end surfaces of the ring-shaped product (S).

Thereafter, as shown in FIGS. 3 and 8, the ring-shaped product (S) and the plastic film (P) are fed to the positions of the plurality of clamp claws (5). And a ring-shaped product (
Close the clamp claw (5) toward the plastic film (P) on one end side of S), and close the clamp claw (5) toward the plastic film (P).
5) Grasp the plastic film (P) on one end side and deflate it. Thereafter, as shown in FIG. 9, when the push rod (6) is passed between the clamp claws (5) and inserted into the inner hole (B) of the ring-shaped product (S), one end surface is The plastic film (P) on the side is pushed forward. Furthermore, when the push rod (6) is pulled out and reinserted, and this is repeated 2 to 3 times, the plastic film (P) on one end side is pushed into the inner hole (B) of the ring-shaped product (S). , it can be extruded into the plastic film (P) on the other end side. The push rod (6) is provided with a plurality of axial grooves on its outer circumferential surface, and when the plastic film (P) is pushed into the inner hole (B) of the ring-shaped product (S), the wrinkles are pushed out. It can escape into the axial groove of the rod (6).

Next, as shown in FIG. 5, the ring-shaped product (S) and the plastic film (P) are sent to the position of the annular heat-sealing member (7). Then, as shown in Fig. 10, on one end surface side of the plastic film (P), the receiver inserts the rod (8) into the inner hole (B) of the ring-shaped product (S) and the plastic film (P). and make it protrude into the plastic film (P) on the other end side. Then, when the heat-sealing member (7) is closed toward the plastic film (P) on the other end side of the ring-shaped product (S), the heat-sealing member (7) and the plastic film (P) are connected to the rod ( The plastic film (P) is pressed against the heat-resistant rubber (9) of 8) and heat-sealed by the heat-sealing member (7).

Therefore, the plastic film (P) on one end surface side and the plastic film (P) on the other end surface side can be heat-sealed, and an annular heat seal line (t2) is formed on the plastic film (P). Then the 11th
As shown in the figure, press the cutter (10) against the plastic film (P), push it into the annular groove (11) of the rod (8), and rotate the cutter (10) around the support shaft (12). By doing so, the plastic film (P) can be cut along the heat seal line (t2).

Therefore, the outer circumferential surface, both end surfaces, and inner circumferential surface of the ring-shaped product (S) are covered with a series of plastic films (P), and two types of heat-sealing lines (!, (t2)) are formed on the plastic film (P). It is something that is formed.

After that, the ring-shaped product (S) and the plastic film (P) are sent into the shrink tunnel, and the plastic film (P) is heat-shrinked by the shrink tunnel, so that the entire ring-shaped product (S) can be tightly packaged. , the package shown in FIG. 1 can be obtained.

Note that the ring-shaped products (S) do not necessarily have to be arranged vertically on the conveyors (1) and (3), but can also be arranged horizontally. As shown in FIGS. 12 and 13, the ring-shaped product (S) is placed horizontally, and the conveyor (1) sends the ring-shaped product (S) and pushes it toward the plastic film (P). ,
The ring-shaped product (S) crosses the plastic film (P) and is transferred to a conveyor (3). After that, the plastic film (P) is heat-sealed by the vertical heat-sealing bar (4), and the plastic film (P) is
P) can cover the outer circumferential surface of the ring-shaped product (S), and can be packaged in a sleeve. Next, as shown in FIGS. 14 and 15, the clamp claw (5)
When the plastic film (P) is grasped and deflated, and the push rod (6) is inserted into the inner hole (B) of the ring-shaped product (S), the plastic film (P) on one end side of the ring-shaped product (S) is ) can be pushed into the inner hole (B) of the ring-shaped product (S) and extruded into the plastic film (P) on the other end side. Conveyor (3)
As shown in Fig. 20, ring-shaped products (S
) and plastic film (P) are placed between a pair of conveyors (3), and between each conveyor (3), the plastic film (P) on one end side is pushed out into the plastic film (P) on the other end side. do it.

Thereafter, as shown in FIG. 16 and FIG. 17, the ring-shaped product (S) and the plastic film (P) are sent to the reversing conveyor (13), and the ring-shaped product (S) and the plastic film are transported by the reversing conveyor (13). (P
). Next, as shown in FIGS. 18 and 19, when the rod (8) is inserted into the inner hole (B) of the ring-shaped product (S) between the pair of conveyors (3), the receiver is inserted into the inner hole (B) of the ring-shaped product (S). Similarly to FIG. 11, the plastic film (P) can be heat-sealed by the annular heat-sealing member (7), and the plastic film (P) can be cut by the cutter (10).

Thereafter, by heat-shrinking the plastic film (P) using a shrink tunnel, the package shown in FIG. 1 can be obtained.

In addition, a plastic film molded into a tube shape is used, and the plastic film is used as a ring-shaped product (S
), the ring-shaped product (S) may be inserted into a tube-shaped plastic film, the outer peripheral surface of the ring-shaped product (S) may be covered with this, and the ring-shaped product (S) may be packaged in a sleeve.

After that, the plastic film on one end side of the ring-shaped product (S) is pushed into the inner hole (B) of the ring-shaped product (S), and the plastic film on the one end side and the plastic film on the other end side are heat-sealed. The entire ring-shaped product (S) can be wrapped with a plastic film. In this case, an annular heat-sealing line (12) is formed on the plastic film, but a heat-sealing line (tl) in the longitudinal cross-sectional direction of the ring-shaped product (S) is not formed.

DETAILED DESCRIPTION OF THE INVENTION According to the present invention, the entire ring-shaped product can be wrapped with a plastic film. Then, the transport rod and the fork of the forklift can be inserted into the inner hole of the ring-shaped product, making the transport convenient. Moreover, the package can be automatically wrapped. Furthermore, compared to the conventional gate-wrapped kraft paper, not only does the problem of packaging time and material cost not occur, but the plastic film can be torn and unpacked easily. It is possible to achieve the intended purpose.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing an embodiment of the present invention, and FIGS.
The figure is a perspective view showing the packaging process of the package in Figure 1, and Figures 6 to 6.
Fig. 11 is an explanatory diagram showing the state in which the packaged item in Fig. 1 is packaged, Figs. 12 to 20 are explanatory diagrams showing modifications of Figs. is a perspective view showing a conventional package. (P)・・・・・・・・・・・・・・・・・・Plastic film (S)・・・・・・・・・・・・・・・
・・・・・・Ring-shaped product (t2)・・・・・・
・・・・・・・・・・・・・・・Heat seal wire patent applicant Nissan Kiko Co., Ltd. Figure 2, Figure 6, Figure 57, Figure 8, Figure 15, Figure 20! i! H

Claims (2)

[Claims] (1) The outer circumferential surface, both end surfaces, and inner circumferential surface of a ring-shaped product are covered with a series of plastic films, and a heat seal line is formed on the plastic film that extends in an annular shape along the inner circumferential edge of one end surface of the product. A ring-shaped product package characterized by: (2) Covering the outer peripheral surface of a ring-shaped product with a plastic film, packaging it in a sleeve, and extending the plastic film in a cylindrical shape from both end surfaces of the product,
The plastic film on the one end surface side is pushed into the inner hole of the product, extruded into the plastic film on the other end surface side, and the plastic film on the one end surface side and the plastic film on the other end surface side are heat-sealed. A method of packaging ring-shaped products.