JPH088974Y2 - Unpacking tape for film packaging - Google Patents

Description

[Detailed Description of the Invention] (a) Technical Field to which the Invention belongs This invention is, for example, in a packaging method such as shrink wrapping or stretch wrapping, unpacking a synthetic resin wrapping film for wrapping an object to be packaged. The present invention relates to an unpacking tape for film packaging used for work.

(B) Conventional technology Conventionally, as the unpacking means of the above-mentioned film packaging, for example, a synthetic resin packaging film for packaging an object to be packaged is melt-fused by a heat generator such as a fusing heater, or a packaging film is used. There is an unpacking means that cuts with a cutting tool such as scissors or a cutter.

(C) Problems to be solved by the invention However, when an object to be packaged such as a bottle container or a can container having a smooth outer surface is wrapped with a synthetic resin packaging film, the outer surface of the object to be packaged is made of synthetic resin. Since the wrapping film adheres to the packaging film, the packaging film that wraps the product to be packaged is unwound or cut when unpacking, but the open side end of the packaging film does not adhere to the outer surface of the product to be packaged. Therefore, it is difficult to peel it off, and it takes time to peel the packaging film.

In view of the above problems, the present invention restores the tape body to the original state by the accumulated elasticity, and the restoring force separates the divided side end of the packaging film from the object to be packaged to facilitate peeling, An object of the present invention is to provide an unpacking tape for film wrapping, which enables the unpacking work of the wrapping film to be simple and easy.

(D) Means for Solving the Problem The present invention comprises a tape-shaped tape main body made of an elastic material, and elastically deforms the tape main body in a state where elasticity is accumulated to wrap an object to be packaged. It is an unpacking tape for film wrapping that is interposed on the inner surface side of the wrapping film.

(E) Action The present invention, when the unwrapping tape is elastically deformed in a state where elasticity is accumulated and is interposed on the inner surface side of the packaging film that wraps the article to be packaged, when the predetermined position of the packaging film is divided, The pre-stored elasticity restores the unpacking tape to its state before it elastically deforms, and the restoring force expands the wrapping film from the inside to separate the wrapping film from the outer peripheral surface of the object to be packaged, and the opposing surfaces Since a gap is formed between them and the dividing side end of the packaging film is expanded by the expanding action, the unpacking operation of the packaging film can be easily performed.

(F) Effect of the device According to this device, since the unwrapping tape is elastically deformed in a state where elasticity is accumulated and intervenes on the inner surface side of the packaging film for packaging the object to be packaged, the packaging film is cut at the same time, Due to the accumulated elasticity, the unpacking tape is restored to separate the packaging object and the packaging film from each other, and the packaging film is pulled from the packaging object to form a gap between the facing surfaces to reduce the contact portion. The peeling resistance when peeled off is small. Moreover, a hand or a finger can be easily inserted into the gap formed between the object to be packaged and the packaging film, and,
Since the cut-side end of the packaging film is greatly expanded, the cut-side end of the packaging film can be held by a hand or a finger and peeled off at once, and the unpacking operation of the film packaging can be performed easily and easily.

(G) Embodiment An embodiment of the present invention will be described in detail below with reference to the drawings.

The drawings show a stretch-wrapping unpacking tape that wraps a cardboard box as an example of the object to be packaged. In FIGS. 1 and 2, the unpacking tape 1 is made of, for example, heat-resistant synthetic rubber. The tape body 2 is formed of a flexible elastic material, the tape body 2 is formed into a flat cross-section in the length direction, and the conductor 3 is formed along the central surface 2a of the tape body 2. And the left and right tape parts 4 and 5 that make up the tape body 2 with the conducting wire 3 as a bending line.
Is formed so that it can be folded in two in the length direction.

The back surface 4a of the tape portion 4 described above is wholly or partially coated with an adhesive agent 6, and the back surface 5a of the tape portion 5 is provided with a nichrome wire 7 along the longitudinal side end.

The conducting wire 3 and the nichrome wire 7 are wired along the entire length of the tape body 2, and the upper ends of the conducting wire 3 and the nichrome wire 7 are connected to each other so that they can be energized, and as shown in FIG. The lower end portion facing the conducting wire 3 is partially cut out so that the conducting wire 3 is exposed to the outside when the left and right tape portions 4 and 5 are superposed.

The lower ends of the conductor 3 and the nichrome wire 7 are, as shown in FIG.
To hold and energize.

The unpacking tape 1 is formed to have a length corresponding to the maximum stacking height of a stacking box body 11 formed by stacking a plurality of cardboard boxes 10 on a rectangular pallet 9.

As shown in FIGS. 4 and 5, the stretch wrapping machine 12 used for wrapping the above-mentioned stacking box 11 is a turntable for horizontally rotating the stacking boxes 11 stacked on the pallet 9.
13, a film stretching unit 15 that continuously supplies the synthetic resin packaging film 14 while stretching, and an elevating device 16 that elevates and lowers the film stretching unit 15 according to the stacking height of the stacking box body 11. There is.

The above-described turntable 13 is horizontally rotatably supported by fixing the turntable 13 to the upper end of a rotary shaft 18 that is pivotally supported at the center of the upper surface of the base 17, and is arranged below the turntable 13. It rotates horizontally in the arrow direction by a rotation motor 19 with a built-in reduction gear.

The above-described film stretching section 15 includes the two stretching rollers 21 and 22 and the roll film 2 on the mounting frame 20 formed in a cross section.
3 is vertically supported, and each of the stretching rollers 21 and 22 is rotated in the feeding direction to pull the synthetic resin packaging film 14 wound around the roll film 23, and at the same time, the stretching roller 21.
The stretching roller 22 is rotationally driven at a higher peripheral speed than the stretching roller 22 to forcibly stretch and feed the synthetic resin packaging film 14.

In the above-described lifting device 16, the guide rail 25 is erected on the support column 24 that is erected at the side position of the turntable 13, and the above-mentioned mounting frame 20 is mounted on the guide rail 25 so as to be vertically slidable, and An elevating chain 27 is stretched between sprockets 26, 26 axially supported at both upper and lower ends, and the ends of the elevating chain 27 are fixed to a mounting frame 20.

That is, the lifting motor 28 with a built-in speed reducer fixed to the lower side surface of the support column 24 rotates the lifting chain 27 forward and backward through the sprockets 29, 29 and the chain 30 to cause the lower peripheral surface of the stacking box body 11 to move. On the other hand, between the lowered position where the packaging film 14 is wound and the raised position where the packaging film 14 is wound around the upper peripheral surface of the stacking box 11, corresponding to the stacking height of the stacking box 11. The film stretching unit 15 is stopped moving up and down.

Assuming that the illustrated embodiment is configured as described above,
The stretch wrapping using the stretch wrapping machine 12 and the unpacking method will be described.

First, as shown in FIGS. 4 and 5, the unpacking formed on one side of the stacking box 11 placed on the turntable 13 in the longitudinal direction to a length corresponding to the stacking height of the stacking box 11. The tape 1 is attached and fixed in the length direction.

That is, as shown in FIG. 1 and FIG. 2, the tape portion 4 of the tape main body 2 constituting the unpacking tape 1 is integrated into the collecting box body 11.
The tape 3 is fixed to one side of the tape body in the lengthwise direction, and the conducting wire 3 laid on the central surface 2a of the tape body 2 is used as a bending guide to prevent the left and right tape portions 4 and 5 from resisting elasticity. Each of the tapes 4 of the tape main body 2 as well as accumulating elasticity by superposing the tape portion 5 on the tape portion 4 previously attached.
Bend and hold 5 in a state of accumulated elasticity. After this,
The synthetic resin packaging film 14 is stretched and fed out from the film stretching portion 15 stopped at the descending position, and is fed out to the lower end portion of the unpacking tape 1 attached to one side surface of the stacking box body 11. Attach and fix.

Next, the rotation motor 19 is driven to turn the turntable 13
Horizontally rotating the stacking box body 11 placed on, and at the same time, driving the elevating motor 28 to raise the film stretching section 15 while continuously feeding the synthetic resin packaging film 14, and horizontally rotate the stacking box. The packaging film 14 is wound several times around the entire circumference of the side surface from the lower peripheral surface to the upper peripheral surface of the box body 11 for stretch wrapping, and at the same time, the packaging film 14 wrapped around the integrated box body 11.
Thus, the unpacking tape 1 is bent and held in a state where elasticity is accumulated.

On the other hand, when unwrapping the stretch wrapping using the unpacking tape 1 described above, the lower ends of the conducting wire 3 and the nichrome wire 7 wired on the unpacking tape 1 are held by the energizer 8 to energize, thereby As shown in the figure, the nichrome wire 7 is 200 ℃ ~ 250
Heat is generated at 0 ° C., and the packaging film 14 that wraps the integrated box body 11 is melted and cut in the vertical direction. At the same time, the pressing force of the packaging film 14 that holds the folded state of the unpacking tape 1 is released, and the tape portions 4 and 5 of the tape body 2 that constitutes the unpacking tape 1 are restored to a flat shape by the accumulated elasticity. Then, the restoring force separates the integrated box body 11 and the packaging film 14 from each other, and forms a gap between mutually facing surfaces to reduce the contact portion. At the same time, the open side end 14a of the packaging film 14 wrapped around the unpacking tape 1 is pushed outward by the restoring force. As shown in FIG. 6, an integrated box body
Since there is little adhesion between 11 and the packaging film 14 and the peeling resistance when peeling off is small, the fused packaging film
By grasping and pulling the open side end 14a of the hand 14 with a hand or a finger, the packaging film 14 can be peeled off from the stacking box body 11 all at once, and the unwrapping work of stretch packaging can be easily performed.

As described above, since the unpacking tape 1 is interposed between the facing surfaces of the stacking box body 11 and the packaging film 14 while being folded in a state where elasticity is accumulated, when the packaging film 14 is melt-cut, the tape body 2 The tape parts 4 and 5 are restored to a flat shape by the accumulated elasticity, and the restoring force separates the stacking box body 11 and the packaging film 14 from each other and forms a gap between mutually facing surfaces to form a close contact portion. Since the number is reduced, the peeling resistance when peeling the packaging film 14 from the integrated box body 11 becomes small.

Moreover, since a hand or a finger can be easily inserted into the gap formed between the integrated box body 11 and the packaging film 14, the open side end portion 14a of the packaging film 14 is widely pushed outward. Since the open side end 14a of the packaging film 14 can be held by a hand or a finger and peeled off at once, the unpacking operation of the film packaging can be performed easily and easily. In addition, since the conducting wire 3 laid on the central surface 2a of the tape body 2 is used as a bending guide, the tape portions 4 and 5 of the tape body 2 constituting the unpacking tape 1 are bent into hairpin shapes, so that the tape is sharply angled. It can be prevented from being bent, and a certain elasticity that always tries to restore the flat shape can be obtained.

In the correspondence between the configuration of the present invention and the above-mentioned embodiment, the dividing means of the present invention corresponds to the nichrome wire 7 of the embodiment and a cutter 31 described later. Although it corresponds to the integrated box body 11, the present invention is not limited to the configuration of the above-described embodiment.

For example, as shown in FIGS. 7 and 8, unpacking tape
By forming the tape body 33 forming the V-shaped cross section, the tape parts 34, 34 of the tape body 33 forming the unpacking tape 32 are flattened against the elasticity during packaging. When unfolded, elasticity is accumulated in the valley portion of the tape body 33. The unpacking tape (32) is stretch-wrapped or shrink-wrapped with the unfolding tape (32) interposed between the facing surfaces of the stacking box body (11) and the packaging film (14) with the elastic tape accumulated. At the time of unpacking, if the conducting wire 3 and the nichrome wire 7 wired on the tape body 33 are energized to melt and cut the packaging film 14, the unpacking tape
Each tape portion 34, 34 of the tape body 33 constituting 32 is restored to a V-shape by the accumulated elasticity, and the open side end portions 14a, 14a of the packaging film 14 melted by the restoring force are spread out respectively. Therefore, the unpacking operation of the packaging film 14 can be easily and easily performed as in the above-described embodiment.

In addition, as shown in FIGS. 9 and 10, the unpacking tape 1
The tape portion 4 of the tape body 2 constituting the above is affixed and fixed to the stacking box body 11, and the tape portion 5 is bent toward the tape portion 4 side.
Using the long side edge of the
By cutting with, it is possible to prevent the one side surface of the stacking box body 11 from being cut and scratched, and the peeling operation of the packaging film 14 can be easily and easily performed as in the above-described embodiment. Moreover, the packaging film 14 coated on the unpacking tape 32 may be cut by the cutter 31 along the unpacking tape 32 interposed between the facing surfaces of the integrated box body 11 and the packaging film 14.

Each of the above-described unpacking tapes 1 and 32 may be formed in an arbitrary cross-sectional shape such as a corrugated cross-sectional shape and a mountain cross-sectional shape, and can be applied to the unpacking work of shrink wrapping.

[Brief description of drawings]

The drawing shows an embodiment of the present invention, FIG. 1 is an enlarged perspective view of a flat unpacking tape, FIG. 2 is an enlarged cross-sectional view of an attachment portion of the unpacking tape, and FIG. 3 is a blown unpacking tape. FIG. 4 is a side view showing the structure of the stretch wrapping machine, FIG. 5 is a view for explaining the wrapping operation of the stretch wrapping machine, FIG. 6 is a perspective view showing the stacking box immediately after unpacking, and FIG. Is an enlarged cross-sectional view of the V-shaped unwrapping tape pasting part, Fig. 8 is an explanatory diagram of the restoration operation of the melted unpacking tape, and Fig. 9 is a solution for cutting and unpacking the packaging film using the flat unpacking tape. FIG. 10 is an enlarged cross-sectional view of the sticking portion of the packing tape, and FIG. 10 is an explanatory view of the restoring operation of the cut packing film. 1,32… Unpacking tape, 2,33… Tape body 4,5,34… Tape part, 7… Nichrome wire 8… Electric current collector, 11… Integrated box body 14… Packaging film, 14a… Open end 31… Cutter

Claims (1)

[Scope of utility model registration request] 1. A film interposing on the inner surface side of a packaging film for packaging an article to be packaged by elastically deforming the tape body so that the tape body is formed of an elastic material and the tape body is elastically accumulated. Unpacking tape for packaging.