JPS5820508Y2 - packaging workbench - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a workbench suitable for packaging using stretchable film.

It is important for packaging using this type of stretchable film, which is offered under trademarks such as Saran Wrap, to
The purpose is to fully stretch the film and package it.

Therefore, packaging machines using this type of film require a film stretching device and are inevitably more expensive than other general packaging machines.

In view of this, the present invention aims to reduce costs and increase demand by semi-manually performing packaging operations without compromising the above requirements.

Embodiments of the present invention will be described below based on the drawings.

In the embodiment shown in FIG. 1, a pair of rollers 3, 3 are rotatably provided on an arm 2 protruding from a table 1.
A roll-wound stretchable film F is placed on top of the film F.

Further, a pair of inching rolls 4, 5 are provided on the arm 2 at the front edge of the table 1, and a plurality of rollers 6, 6, .
... are arranged on the upper surface of the table 1, and a cutting device 7 is provided in the upper area of the table 1 between the rollers 6.6.

As shown in FIG. 2, the cutting device 7 is provided with a cutting blade 10 inside a progressive-type film holder 9, and a bushing rod 11, 11 protruding from the back surface of the cutting blade 10 penetrates the film holder 9. A spring 13 .
3 is interposed.

Further, the film retainer 9 supports sleeves 14.14 fixed to both ends thereof on connecting rods 15, 15, respectively, and a blade retainer plate 16 is installed between the upper ends of these connecting rods 15.15.

As shown in FIG. 1, the connecting rod 15 is slidably supported by a frame 16, and a set spring 18 is interposed between the lower surface of a spring ring 17 formed on the connecting rod 15 and the upper surface of the frame 16. are doing.

Furthermore, the gear 2 is attached to the rack teeth 19 formed on the connecting rod 15.
The shaft 21 that is engaged with the inching roll 4 on one side is connected via chains 23, 23 and a one-way clutch 24.

Furthermore, the table 1 has a hemispherical concavity 26 formed on the upper surface of the area behind the cutting device 7, and a hot plate 43 is disposed above the concavity 26 while being supported by a guide 44,
As shown in FIG. 3, a large number of suction holes 27, 27, . . . are formed on the inner surface of the recess 26, and each suction hole 27, 27, . and communicates with the vacuum pump 29.

Further, a large number of blow-off holes 30...31...32... are provided on the upper surface of the table 1 around the recess 26.
...33... are formed, and each of these blow-off holes 3
0, 31, 32, and 33 are connected to a blower 35 via rotary valves 34, respectively.

Furthermore, as shown in FIG. 1, a foot lever 38 and each of the aforementioned connecting rods 15.
15.

The present invention is constructed as described above, and its operation will be explained below.

When the work tool located on the left side of the table 1 in FIG. 1 pushes the foot lever 38, the connecting rod 15 in FIG.
The film holder 9 descends through the blade holder 15 and holds the film F located on the top surface of the table 1 with the compression force of the spring 39.39, and then the spring 13.13 of the blade holder 16
By descending against the force, the cutting blade 10 moves downward and the film F is cut.

Then, the worker manually pulls the cut film F to the upper part of the recess 26.

In this case, the operator releases the foot lever 38, and when the connecting rod 15 moves the cutting device 7 upward by the force of the spring 18, the gear 20 that engages with the rack 19 is moved by the engagement of the one-way clutch 24. Inching roll 4
is rotated by a predetermined angle and the end of the film F is sent out in the direction of the worker, making it easier for the worker to pull out the film F.

On the other hand, when the foot lever 38 returns to its normal position, the switch 40
is closed, the timer 41 starts operating, and the opening/closing valve 28 is first opened at a preset time, so that the film F is pulled into the recess 26 by the action of the vacuum pump 290.

Then, when the object to be packaged A is supplied onto the film F, some of the air outlets 30 in FIG.
Since air is blown out from the chisel, a part of the film F is placed over the packaged item A as shown in FIG.

In this case, since the film F is sucked into the recess 26, the operator can sufficiently stretch a part of the end of the film F and place it over the object A to be packaged.

Thereafter, wind is sequentially blown out from each of the blow-off holes 31, 32, and 33 after a predetermined time delay, folding the ends of the blow-off film F in sequence.

The working tool lowers the hot plate 43 along the guide 44 to weld the overlapping portions of the films, and by closing the on-off valve 28 and the rotary valve 34, the packaged product can be removed from the recess 26.

As shown in the above example, an arm 2 for rotatably supporting a roll-shaped film F is provided on the table 1, and an arm 2 is mounted on the table 1 from the arm 2 as a base point in the direction of the arrangement position of the work tool. While the cutting device 7 and the hot plate 43 are arranged to move up and down, a recess 26 is formed in the table 1 below the hot plate 43, so a roll of film is cut to a predetermined length and placed on the recess 26. It can be placed in the recess 2
Since the film F is recessed in the shape of the recess 26 by forming a large number of suction holes 27, 27, . Can be stabilized on film.

Moreover, a large number of blow-off holes 30 are formed around the recess 26.
......31...32...33.
.
Since the periphery of the underlying film F is partially bent sequentially, the working tool can lend its hand to the periphery of the film and stretch it sequentially, allowing each suction hole 27...
Coupled with the adsorption power of the film F due to ..., there is an effect that the film can be sufficiently stretched to perform tension packaging.

[Brief explanation of drawings]

Fig. 1 is a side sectional view showing an embodiment of the present invention, Fig. 2 is a view taken along the line II-II of both figures, Fig. 3 is a view taken along the line II-II of the same, and Fig. 4 is an explanatory view of the packaging mode. It is.

Claims (1)

[Scope of utility model registration request] An arm 2 that rotatably supports a roll-shaped film is provided on the table 1, and an arm 2 is provided on the table 1, with the arm 2 as a base point, in the direction of the arrangement position of the work tool, and perpendicular to the direction in which the film is pulled. A cutting device 7 and a substantially circular hot plate 43 are sequentially arranged so as to move up and down, while a planar circular depression 26 is formed in the table 1 of the hot plate 43, and a large number of Suction hole 27.27...
・Also, there are many air outlet holes 30 around the same depression 26...
...31...32...33...
. . are opened in an annular arrangement, and each of the suction holes 27 . On the other hand, there is a packaging workbench in which a control element is interposed so that each of the annularly arranged blow-off holes 30, 31, 32, 33 communicates with the blower 35 one after another with a predetermined time delay.