JPS6216326A - Method of packaging cylindrical article - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] Industrial Field of Application The present invention is employed for packaging cylindrical objects such as fi/I/rouge materials, tires, electric wires, etc. on their inner and outer surfaces in order to protect them. The present invention relates to a method for packaging cylindrical objects.

Conventional technology Conventionally, paper wrappers have been the mainstream for packaging cylindrical objects.

Problems to be Solved by the Invention According to the above-mentioned conventional method, it is difficult to automate the process because it is wrapped in one paper, and the paper is easily damaged after packaging, and furthermore, it is poor in moisture resistance.

problem? Means for Solving In order to solve the above-mentioned problems, the method of packaging a cylindrical object according to the present invention covers the cylindrical object with a heat-shrinkable film with both ends in the axial direction and one place in the circumferential direction open. Then, the openings at both ends of the film are sealed, and then the inside of the film is degassed through the openings in the circumferential direction, and the film is brought into close contact with the inner and outer surfaces of the cylindrical object. The metal seal on the film wall located in the partition shape is cut to penetrate the hole, and then the film is heat-shrinked.

Effects According to the method of the present invention, packaging can be automated by preparing a seal-cutting device, various conveying devices, etc., and packaging can be performed neatly with a filler.

Example An embodiment of the present invention will be described below based on the drawings.

In Fig. 1, a coiled lv mesh material is shown as the cylindrical object (1), but this may also be a tire, electric wire, etc. As shown in Figs. 2 and 3, the cylindrical object (1) Cover with heat-shrinkable film (2). Here, the upper and lower two films (2) are continuously fed out, and the part between the free ends becomes the sealed part (3) in advance (in the previous process), and the cylindrical object (1) is formed between the two films.
) is carried in from the axial direction or the circumferential direction by a carrying device or the like. After delivery, a sea μ cut is made on the opposite side of the seal part (3) to form the seal part (4), but at this time, a cut is made in the middle, that is, at one place corresponding to the circumferential direction of the cylindrical object (1). A circumferential open portion (5) is formed. Furthermore, by forming the both seal portions (3) (41), both end open portions (6) are formed at both ends in the axial direction.As shown in FIGS. 6) is sea μ and made into sea/l/ part (7), which is the circumferential open part (5).
Only the cylindrical object (1) is opened inside the nine bag-shaped film (2).
It is assumed that the shape is positioned as follows. Next, as shown in the imaginary line in Fig. 5, the suction tube (8) fc is inserted into the film (2) through the entire circumferential opening (5 holes), and the inside of the film (2) is degassed. Due to the air, the film (2) gradually becomes thinner and comes into close contact with the inner and outer surfaces of the cylindrical object (1), as shown in FIG.

At that time, as shown in Fig. 8, the excess film (2) is drawn into the hole of the cylindrical object (1), and two layers of film are stacked to form a partition-like film wall (9) in this hole. become. After completing the desired degassing, the suction tube (8) is pulled out. Next, as shown in FIGS. 7 and 8, the seal cutting device 111 is set in response to the call. This seal/cut device 11QO has a disc-shaped receiver mounted on one side via an operating rod (11), and a disc-shaped support mounted on the other side via an operating pipe 03. A circular heat sealer 〇〇 placed on the front of this disc C14).

It is composed of a circular cutting heater Qe disposed on the front side of the disc α in the inside of this heat seal part. After setting as described above, set the operating rod αυ
The receiver moves the stand @ and the disk Q41 closer together to clamp the film wall part (9) through the actuating pipe and the film wall part (9). As a result, the film wall part (9) is made into a circular shape by the heat sealer (toward). The seal is sealed, and the inside of the sealed portion α is cut into a circular shape by the cutting heater aQ.

Next, the receiver separates the base (2) and the disk α-fathom, but at that time, a suction force is applied to the actuating tube (to).

Therefore, as shown in FIG. 9, the cut film wall portion (9) is attracted and removed. This allows the inside to be penetrated. After that, it is heated in a heating process, and the film (
2) Heat shrink to make it stronger.

This completes the packaging.

Although the drawings of the above embodiments show a transparent film (2), it may also be opaque or translucent.

Effects of the Invention According to the present invention having the above-mentioned configuration, automation of packaging can be easily realized by preparing a seal/cut device and various conveyance devices, and furthermore, packaging can be done neatly and without damage by using a film. Moreover, it can be carried out in a state with excellent moisture resistance. In addition, since the dense layer is formed in the previous stage by suction degassing and the excess portion of the edge is removed by the seal cut, the adhesion by the heat absorption 1a can be easily and strongly performed.

[Brief explanation of drawings]

The drawings show one embodiment of the present invention; FIG. 1 is a perspective view of a cylindrical object, FIG. 2 is a perspective view of a cylindrical object covered with a film, FIG. 3 is a plan view of the same, and FIG. 4 is a bag-like sheet. Figure 5 is a perspective view at μ time, Figure 5 is an open plan view, Figure 6 is a perspective view when degassing, Figure 7 is a perspective view before sealing and cutting, Figure 8 is a longitudinal side view of the same, Figure 9 is FIG. 3 is a vertical cross-sectional side view after seal cutting.

Claims (1)

[Claims] 1. A cylindrical object is covered with a heat-shrinkable film with both ends in the axial direction and one place in the circumferential direction open, and both open ends of the film are sealed, and then the inside of the film is passed through the open end in the circumferential direction. After deaerating the film, the film is brought into close contact with the inner and outer surfaces of the cylindrical object, and then the film wall section that is positioned like a partition inside the hole of the cylindrical object is sealed and cut to pass through the hole. A method for packaging cylindrical objects in which the film is then heat-shrinked.