JPS594888Y2 - film wrapping machine - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a film packaging machine that pulls out a film from a roll film, wraps food, etc., and cuts the film.

Conventionally, film packaging machines have a structure in which a cutting knife is fixed near the film drawer opening of the film packaging machine, and the film is pressed against this knife to cut the film. Therefore, the blade cover was equipped with a blade cover that swung when the film was pressed.

However, the cutter cover was not sufficiently constructed to prevent danger because it could be easily opened by touching it.

Furthermore, with this type of film wrapping machine, the work of pulling out the film from the edge of the roll film and wrapping it around the pull-out roller inside the wrapping machine to install it is complicated, and there are problems such as getting injured by touching the cutter. there were.

This idea was made to solve the above problem.A locking mechanism is attached to the blade cover of the blade that cuts the film to prevent the blade cover from being accidentally removed and to prevent accidents caused by contact with the blade. The purpose of the present invention is to provide a film packaging machine that allows the film to be easily hung on a pull-out roller.

Hereinafter, embodiments of this invention will be described based on the drawings.

FIG. 1 shows a longitudinal sectional view of the film packaging machine, and FIG. 2 shows a plan view thereof.

Two free rollers 1 are installed horizontally inside the main body of the film packaging machine, and a roll film 2 is placed on these.

The upper part of the main body is formed flat so as to serve as a work table for wrapping the products to be packaged, and an opening 3 for pulling out the film 2a is formed in a part of the front part thereof.

Near the opening 3 is a serrated blade 4 for cutting the film.
is fixed horizontally, and below it a pull-out roller 5 is horizontally supported by a shaft 6.

Reference numeral 7 denotes a cutter cover, which is swingably supported by a shaft 8 supported below the shaft 6, has a portion of the cover having a U-shaped cross section at the top, and is formed to surround the cutter 4. .

A locking member 9 locks and fixes the cutter cover 7 in a state surrounding the cutter 4, and is supported by a shaft 10 so as to be swingable.

A coil spring 11 is installed between the blade cover 7 and the main body to bias it in the direction of covering the blade, and the blade cover 7 is stopped by a stopper (not shown) at a position surrounding the blade 4, and is then locked. The member 9 is configured to lock the cover against force in the direction of opening it.

Reference numeral 12 denotes an unlocking member rotatably supported by the shaft 6 and pressed against the end surface of the pull-out roller 5 by a coil spring 13. is placed in contact with the lower part of the locking member 9.

Therefore, when the film 2a is pulled out, it rotates together with the pull-out roller 5, and its shoulder 12a pushes up the locking member 9 upward, thereby operating to release the locking of the cutter cover 7.

Further, the locking and releasing member 12 is provided with an engaging portion 12b that engages with the knife force)<-7.

A guide roller 171 is used when drawing out the film 2a, and is pivotally supported via a mounting plate 16 at the upper end of the front plate 15 which is pivotally supported at the bottom of the main body and can be pulled forward.

When the front plate 15 is pushed into the main body, the guide roller 14 is disposed directly above and parallel to the pull-out roller 5.

In addition, the locking member 9, the locking release member 12, and the coil spring 1
3 is arranged on both sides of the pull-out roller 5, and 17 is a stand on which the packaged goods are placed.

Next, the operation of this film packaging machine will be explained.

First, when mounting the film 2a, as shown in FIG. Push the front plate 15 toward the main body,
The guide roller 14 is located near above the pull-out roller 5.

Then, due to the self-adhesiveness of the film 2a, the film 2a is hung on the pull-out roller 5 without slipping off, and its end is exposed in the opening 3.

Then, while holding the end of the film 2a and pulling it upward from the opening 3, the product to be packaged is wrapped in the upper part of the main body (FIG. 1).

Next, when the packaged item is lifted and pulled toward you as shown in FIG. 5, the continuous portion of the film 2a pushes the cutter cover 7 in the left-right direction as shown in FIG. 5, exposing the cutter 4, and the film 2a It hits the knife 4 and is cut.

At this time, since the blade 4 is serrated, the frame is easily cut.

Note that when the film 2a is loaded and pulled out, the pull-out roller 5 rotates clockwise in FIG. The member 9 is pushed upward, and the cutter cover 7 is unlocked.

After the film 2a is cut, the blade cover 7 returns to its original position by the force of the coil spring 11 and surrounds the blade 4.

Note that the locking and releasing member 12 is such that the cutter cover 7 is attached to the film 2.
When it tilts to the left due to the movement of a, it follows this and returns to its original position.

The end of the film 2a after cutting is exposed to the opening 3 in preparation for the next packaging, and the end of the film of the packaged product is pressed against the lower surface of the packaged product on the stand 17 and adhered by self-adhesion.

In this state, that is, when one stroke of the film drawer is completed, the blade cover 7 is locked with the locking member 9, and the blade v04
Since the opening 3 is locked in a state surrounding the
Safety is ensured even if a hand or the like is inserted into the cutter 4.

Then, following the next film pulling operation, the film wrapping and cutting operations are performed in the same manner as described above.

As described above, according to the film packaging machine of this invention, a serrated blade is fixed near the opening for pulling out the film, a blade cover surrounding the blade is pivotably supported, and the blade is A locking member that locks the cover at a position surrounding the cutter is pivotally supported, and a pull-out roller that hangs the film below the cutter is pivoted, and the locking member is driven coaxially with the pull-out roller to lock the locking member. The locking release member that releases the locking operation is pivotally supported, and the guide roller disposed above the pull-out roller is configured to be able to be pulled forward, making it easy to load the film and to easily pull out the film. The blade cover is unlocked only by operation, and otherwise the blade cover is locked in a state surrounding the blade, so safety can be ensured even if a hand is accidentally inserted.

Further, by using a serrated blade for the cutter, the film can be cut well without using an electric heater or the like.

[Brief explanation of drawings]

The figures show an embodiment of this invention; Fig. 1 is a longitudinal sectional view of a film packaging machine, Fig. 2 is a plan view with half of the packaging machine omitted, Fig. 3 is a perspective view of the internal mechanism, and Fig. 4. and FIG. 5 are explanatory diagrams of the operation of the film packaging machine. 3...Opening, 4...Blade, 5...
... Pull-out roller, 7... Blade cover, 9.
...Latching member, 12...Latch release member,
14...Guide roller.

Claims (1)

[Scope of utility model registration request] Fix a serrated knife near the opening to pull out the film,
A cutter cover that surrounds the cutter is pivotably supported, a locking member that locks the cutter cover at a position surrounding the cutter is pivotally supported, a pull-out roller is pivoted below the cutter, and A pull-out roller (coaxially supports a locking release member that follows this roller and releases the locking operation of the locking member, and allows a guide roller disposed above the pull-out roller to be pulled forward) The constructed film packaging machine.