JP2705243B2 - Transfer method of blank plate - Google Patents

Description

Description: FIELD OF THE INVENTION The present invention relates to a method for transferring a large number of blank plates for milk packs, for example.

[Prior art] When both sides of a paper such as a milk pack in an unfolded state are sealed and tens of sheets are to be stacked and wrapped,
The center part swells due to the side seal (swells in a diamond shape). Therefore, it is easy to fall down when stacking and packing them. The film was wound and wrapped. As a method of transferring the package, the package is sucked from both sides of the package with a suction cup of a package transfer device, sucked, held, and transferred.

[Problems to be Solved by the Invention] However, the above-described conventional technology has the following disadvantages.

When sucking by pressing both sides of the package by the suction cup of the package transfer device, most of the suction force is
It acts on the plastic film wound around it, and no suction force acts on the cardboard under the plastic film. For this reason, the plastic film is broken at the suction portion, or only the wound plastic film is sucked, and the package cannot be stably lifted.

The present invention has been made in view of such circumstances,
It is an object of the present invention to provide a method of stably lifting a package body in which blank plates are bundled and packaged with a cardboard having a U-shaped cross section and a band-shaped film, and transferring the package.

[Means for Solving the Problems] In order to solve the above problems, the present invention provides a plurality of slits in the above-mentioned band-shaped film for winding, and through this slit, the suction force of the suction cup is changed to a supporting member. It is characterized by acting directly on both sides.

That is, the present invention bundles a number of blank plates in an upright state, accommodates them in a support member having a U-shaped cross section so as to support both ends thereof, and furthermore, the support member is a band-shaped film formed with a plurality of slits. A method for transferring a blank plate, comprising: winding and fixing a package to form a package; suctioning both ends of the package from above the wound strip film with a suction cup; and transporting the package. Is what you do.

[Action] By providing slits in the winding belt-like film, the air permeability of the film itself is improved, and therefore, when sucked by the suction cup, the suction force directly acts on the cardboard under the belt-like film, and the package is sealed. The suction cup can be stably held.

Embodiment An embodiment of the present invention will be specifically described below with reference to the accompanying drawings.

FIGS. 1 (a) to 1 (c) show a method of packaging several tens of blank plates in order to stably transfer several tens of blank plates.

Reference numeral 1 indicates a blank plate. This blank plate 1
For example, the base paper cut for a milk pack is heat-sealed at both ends (so-called side-sealed). The blank plate with side seal is
The central portion expands due to the elastic force, and the cross section tends to have a rhombic shape. Therefore, if this is piled up and stacked, it will fall down. Therefore, it is turned downside down and erected and packed into a cardboard 2 having a U-shaped cross section as a support member. Furthermore, this cardboard 2
Is transported as it is, the blank plate falls apart, so that a band-like film (for example, polyethylene film) 3 is wound along the outside of the cardboard 2 and both ends are adhered to each other for packaging (FIG. 1 (b) and FIG. Figure (c). This band-shaped film 3 is provided with a large number of slit-shaped holes 4 in order to have air permeability. The shape of the hole 4 is not particularly limited as long as it can impart air permeability. For example, a circular small hole may be used. Therefore, the term “slit” as used in the present invention is a broad concept including circular holes and other small holes in addition to linear cuts. As the material of the sheet, an arbitrary thermoplastic plastic film or paper is used in addition to polyethylene.

2 (a) to 2 (c) show a method of transferring the package 10 packaged as described above by the transfer device 11. FIG. The packages 10a and 10b are sequentially set in the transfer section. The transfer device 11 includes an air cylinder 12a,
A pair of suction cups 14a, 14b operated by 12b and a limit switch 13 are mounted on the lower surface of the mounting table 15, and firstly, one suction cup 14b of the transfer device is moved to a previously raised position so as not to be in the way. (FIG. 2 (b)). Next, the transfer device is lowered until the limit switch 13 contacts the upper surface of the package 10a. And the other sucker 14a
The air cylinder 12a sucks the side of the package 10a and opens the distance from the package 10b while pulling the package 10a. Then, in the gap, the suction cup 14
The b is lowered, the other side of the package 10a is sucked by the air cylinder 12b, and the package 10a is lifted and transferred (FIG. 2 (c)).

[Effect of the Invention] By providing a large number of slits in the belt-shaped film wound around the support member to provide air permeability, and pressing both sides of the package body to suck and press around the support member. The wound strip-shaped film and the support member can be sucked together. Therefore, it is possible to stably transfer the package with a transfer device having a suction device such as a suction cup. Further, by providing a large number of slits, the film was easily broken.

[Brief description of the drawings]

1 (a) to 1 (c) are diagrams in which a cardboard packed with a blank plate is wrapped with a band-shaped film provided with a number of slits, FIGS. 2 (a) to 2 (c) FIG. 3 is a diagram showing a method of transferring a package packaged with a band-like film by a transfer device. 1 ... Blank plate, 2 ... Corrugated cardboard, 3 ... Strip-like film, 4 ... Slit, 10,10a, 10b ... Package, 11 ...
Transfer device, 12a, 12b ... air cylinder, 13 ... limit, 14a, 14b ... suction cup, 15 ... mounting base.

Claims (1)

(57) [Claims] 1. A large number of blank plates are bundled in an upright state, accommodated in a support member having a U-shaped cross section so as to support both ends thereof, and the support member is further formed of a band-shaped film having a plurality of slits formed therein. It is wound and fixed to make a package,
A method of transferring a blank plate, wherein both ends of the package are sucked from above the slits of the wound belt-like film by a suction cup and the package is transferred.