JPH11255219A - Weakened line machining apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To machine a weakened line on a tape which is sealing over a butted part of flaps of a box body to easily open the box body by carrying the box body and also by advancing/retreating a needle against a face formed by the butted part of the flaps. SOLUTION: A lengthwise direction of a needle body 11 of a needle 1 is set at the right angle to a side face P of a box body, and also a tip of the needle body 11 is placed at the same height as that of a butted part G of a plurality of flaps F to make a needle holder 12 reciprocate, thereby advancing/ retreating the needle body 11 in a right-angled direction to the side face P. In addition, a vacuum box 22 with a peripheral part of the tip of the needle 1 as a suction port 21 is placed so that a tape T is sucked toward the needle holder 12. The tip of the needle body 11 is rapidly advanced/retreated against the side face P of the box body as the box body is being carried, and a perforated weakened line is machined on the tape T which is sealing over the butted part G of the two flaps F.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for processing a line of weakness, and more particularly, to an apparatus for processing a line of weakness on a tape which seals a butt portion of a flap of a box body. .

[0002]

2. Description of the Related Art As a prior art relating to a corrugated cardboard opening apparatus related to a weakening wire processing apparatus, Japanese Utility Model Publication No.
No. 8 is known.

[0003] The prior art described in the above publication is described in Japanese Utility Model Publication No. Hei 7-16578. A (rotating) blade is cut in a state in which a cutting peripheral portion of a cardboard box is pulled outward by a suction device. Discloses a corrugated cardboard box opening device for cutting a corrugated cardboard box vertically.

[0004]

However, the above-mentioned prior art has the following problems.

In other words, the corrugated cardboard box opening device described in Japanese Utility Model Publication No. Hei 7-16578 cannot process a weakening line on a tape that seals a butt of a flap of a box.

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a weakening line processing apparatus for processing a weakening line on a tape which seals a butt portion of a flap of a box body.

[0007]

SUMMARY OF THE INVENTION The present invention provides a transporting means for transporting a box, a needle which is advanced and retracted with respect to a surface formed by a plurality of flaps of the box which are abutted, and a needle which is advanced and retracted. The above object has been achieved by providing an apparatus for processing a line of weakness, comprising: forming a line of weakness on a tape which seals a butt portion of the plurality of flaps. is there.

[0008] It is preferable to provide a suction means having a suction portion in a peripheral portion of the needle.

Further, it is preferable that the suction port is provided so as to surround the needle.

[0010]

Embodiments of the present invention will be described below.

FIG. 1 is a side view showing a main part of an embodiment of a weakening line processing apparatus according to the present invention, which is partially sectioned. 2 is an XX view of FIG. 1, FIGS. 3 to 5 are XX views corresponding to FIG. 2 of another embodiment of the weakening line processing apparatus of the present invention, and FIG. 6 is a weakening line of the present invention. It is a perspective view of the box body which processes a line of weakness by a processing device.

In these drawings, reference numeral 1 denotes a needle which advances and retreats with respect to a (side) surface P formed by a plurality of butted flaps F of a box B conveyed by conveying means (not shown); This is suction means having a suction port 21 at a peripheral portion of the needle 1, and a weakening line (perforation) is formed on a tape T which seals over a butt portion G of a plurality of flaps F. The needle 1 is advanced and retracted at right angles to the side surface P by an advance and retreat means (not shown).

The needle 1 is provided with a needle body 11 and a needle holder 12, and the longitudinal direction of the needle body 11 is perpendicular to the side surface P of the box B. The distal end of the needle main body 11 is arranged so as to have the same height as the height of the abutting portion G of the plurality of flaps F, and the needle holder 12 is moved in the direction perpendicular to the side surface P of the box B by the reciprocating means. The needle body 11 is moved forward and backward.
Are moved forward and backward at right angles to the side surface P of the box B. The advancing / retracting means, not shown, can be achieved by a known technique such as, for example, a solenoid or mechanical reciprocation of the needle holder 12. Further, an elevating device for the needle main body 11 and the needle holding body 12 may be provided so that the distal end of the needle main body 11 can be moved up and down according to the height of the butted portion G.

The suction means 2 includes a vacuum box 22 having a suction port (vacuum pad) 21 around the needle 1 and a vacuum pump (not shown) for exhausting air in the vacuum box 22. The air in the vacuum box 22 is evacuated by a vacuum pump in the direction of the arrow in FIG.
The suction port (vacuum pad) 21 is provided so as to surround the needle 1 as shown in FIGS.

The transport means not shown may be configured so as to be able to transport the box B in a direction along the side surface P of the box B, and can be achieved by a known technique such as a roller conveyor. can do.

Next, the operation of the weak line processing apparatus of the above embodiment will be described. The box B is conveyed on the roller conveyor so that the surface P formed by the two butted flaps (upper flap and lower flap) F is a side surface in the traveling direction, and the two butted flaps are brought together. Butt G of two flaps (upper flap and lower flap) F
When the front end in the traveling direction of the needle body 11 reaches the position of the tip of the needle body 11, the box B is transported while the tip of the needle body 11 is advanced and retracted at a high speed in a direction perpendicular to the side surface P of the box B. (The tape T is moved), so that the tape T sealing above the butting portion G of the two butted flaps (upper flap and lower flap) F has a weakening line (pitch having a pitch like a cutting line). Fine perforations are processed.

Since the tape T located in the peripheral portion of the needle main body 11 is sucked toward the needle holder 12 by the suction means 2, the tape T enters (escapes) inside the abutting portion G. Even if it is deformed, the perforation can be processed reliably.

In the embodiment shown in FIGS. 1 and 2, the tape T is substantially formed by perforating a needle 1 having a plurality of needle bodies 11 mounted on the needle holder 12 in the vicinity of the needle holder 12 in the horizontal direction. It can also be made to be cut off. When the box B reaches the position of the tip of the needle body 11 by the transport means, the needle 1 is moved in the horizontal direction while moving the needle 1 in the horizontal direction without moving the box B. It may be. Further, the needle 1 may be made to reciprocate obliquely with respect to the side surface P instead of at right angles.

If a weakening line (perforation) is formed on the tape T which seals the top of the butted portion G, Patent 2
The box B can be unpacked by a box unpacking device described in 596844.

The embodiments of the present invention have been described above.
The weakening line processing apparatus of the present invention is not limited to these. For example, as shown in FIG. 3, the suction port (vacuum pad) 21 of the suction means 2 is formed in an oblong shape in the vertical direction, and the needle 1 is surrounded by the oval suction port (vacuum pad) 21. You may do it.

As shown in FIG. 4, a plurality of (three) needles 1 are provided in the horizontal direction, and a suction port (vacuum pad) 21 of the suction means 2 is formed in an oblong shape in the horizontal direction. The plurality of (three) needles 1 may be surrounded by the elliptical suction port (vacuum pad) 21.

As shown in FIG. 5, a plurality (3) of the needles 1 are displaced in the width direction (vertical direction) of the tape T, and each of the suction holes ( The vacuum pad 21 may be formed in an elliptical shape in the up-down direction. By disposing a plurality of the needles 1 in the width direction of the tape T, even if the position of the butting portion G is shifted due to deformation of the box B or the like, any one of the needles 1 can be used. A weakening line (perforation) can be reliably processed at a position above the butted portion G of the tape T.

[0023]

As described above, the apparatus for processing a line of weakness of the present invention is capable of processing a line of weakness on a tape which seals over a butt portion of a flap of a box.

[Brief description of the drawings]

FIG. 1 is a side view showing a main part of an embodiment of a weakening line processing apparatus according to the present invention, which is partially shown in section.

FIG. 2 is an XX view of FIG. 1;

FIG. 3 is a XX view corresponding to FIG. 2 of another embodiment of the line-of-weakness processing apparatus of the present invention.

FIG. 4 is a XX view corresponding to FIG. 2 of another embodiment of the weakening line processing apparatus of the present invention.

FIG. 5 is a XX view corresponding to FIG. 2 of another embodiment of the weakening line processing apparatus of the present invention.

FIG. 6 is a perspective view of a box body for processing a weak line by the weak line processing apparatus of the present invention.

[Explanation of symbols]

 1 Needle 2 Suction means 21 Suction port (vacuum pad) B Box F Flap G Butt P (side) surface T Tape

Claims (3)

[Claims] 1. A transport device for transporting a box, a needle which is advanced and retracted with respect to a surface formed by a plurality of flaps of the box which are abutted, and an advance and retreat means which advance and retract the needle. An apparatus for processing a line of weakness, characterized in that a line of weakness is processed on a tape that seals over abutting portions of a plurality of flaps. 2. The weakening line processing apparatus according to claim 1, further comprising suction means having a peripheral portion of the needle as a suction port. 3. The weakening line processing device according to claim 2, wherein the suction port is provided so as to surround the needle.