JPH0140808Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a packaging device for tray-packed items, and particularly to a packaging device suitable for cases where the tray-packed items differ from tray to tray.

[Prior art] Conventionally, this type of packaging device was
There is a device No. 118649, which is a device that is equipped with a film holding frame, and seals and wraps trayed items by covering the length of the opening on the top surface of the tray with a stretch film. a film accommodating portion rotatably supporting a roll-shaped stretch film for packaging and guiding the end of the film onto the base from a slit-shaped film guide hole bored in the base; (2) the film; (3) a tray mounting section having an intake frame in which a band-shaped heating element is wound around a tray mounting recess provided on one surface of the front base of the guide hole, and an intake groove is provided on the outer periphery of the heating groove to communicate with the intake device; ) A pair of guide brackets are installed on the side of the film guide hole of the tray mounting portion, a heating plate is provided in parallel with the brackets, and the lower end of the film holding frame is pivotally connected to the base so as to be freely tiltable; and a heating coating device having a film feeding rod for attaching the end of the rolled film and stretching the film on the front surface of the holding frame along the guide hole of the guide bracket.

[Problem to be solved by the invention] In the conventional packaging device, the hot plate is provided very close to the surface of the presser frame, and the hot plate and the presser frame are independent from each other and are constructed separately. Since only the presser frame rotates, there is a strong possibility that the heating effect on the film will be weakened, and the hot plate and presser frame are parallel only when in a standing position.
When the presser frame is in operation, it is isolated from the film, so the cooling effect works during the operation, that is, when the presser frame rotates from the top to the bottom. The drawback was that it could adhere to the hot plate, and it was not always 100% reliable.

The present invention was devised in view of the problems of the prior art described above, and its purpose is to provide a tray that makes the heating effect on the film even more effective and ensures reliable operation. The present invention aims to provide a packaging device for platters.

[Means for Solving the Problems] In order to achieve the above object, the packaging device for tray-packed products of the present invention has the lower end of the film holding frame 17 on the film guide hole 2 side of the tray mounting section 8 relative to the base 1. The film presser frame 17 is pivotably mounted so as to be tiltable, and the film presser frame 17 is able to fall over with respect to the tray mounting portion 8, and also slides back and forth on the front surface of the film presser frame 17 to attach and tension the film end a. The heating device is composed of a film feeding rod 22 which is configured to have a film feed rod 22, and is integrally provided with a hot plate 19 which is heated and maintained at a constant temperature by a box-shaped heating mechanism 18 at the rear of the frame surface of the film presser frame 17. The film holding frame 17 is tilted integrally with the heating plate 19 to the tray mounting portion 8 so that the film a stretched over the surface of the film holding frame 17 is transferred to the upper surface thereof. That's what I did.

[Function] In the packaging device for tray-plated products of the present invention,
The presser frame is integrally provided with a heating plate at a considerable distance from the surface of the presser frame. In other words, the presser frame and the hot plate are separated by a considerable distance, yet are integrally heated in a box-shaped manner. A mechanism is formed, and the heating plate and presser frame are tilted up and down as a unit and rotated together with the film onto the tray.

[Embodiment] Hereinafter, an embodiment of the packaging device for tray-plated products of the present invention will be described with reference to the drawings. FIG. 1 is a perspective view of the entire device.

A slit-shaped film guide hole 2 through which the stretch film a is inserted upward from the bottom of the base 1 is bored in the approximate center of the base 1, and a tray mounting section is provided in front of the film guide hole 2. 3 is composed of
In addition, a film accommodating portion 4 is formed on the lower surface.

The film accommodating section 4 is constituted by the film accommodating section 4.

The film storage section 4 has two film receiving rollers 5, 5 rotatably mounted in parallel with each other between end brackets erected on the base 1. A film guide roller 6 is pivotally installed below, and the film receiving rollers 5, 5
Stretch film a derived from a stretch film roll a′ wound into a roll placed on top
It will be sent out via .

Further, the film storage section 4 is configured as a housing that surrounds the stretch film roll a' and is configured to be able to supply hot air into the storage cavity, and heats the stretch film a to be fed out in advance to reduce its stickiness. It may be increased.

The tray mounting section 3 has a tray mounting recess 8 formed in the center of the rectangular intake frame 7, and a band-shaped heating element 9 coated with a non-stick resin such as a silicon tube around the outer periphery of the intake frame 7. A mounting recess adjustment frame 10 is constructed.

Intake grooves 11, 11, 1 are provided on the upper surface of the intake frame 7.
1 and 11 are formed so as to go around the outer periphery of the band-shaped heating element 9, and the intake grooves 11, 11, 11, 11
The intake holes 12... are provided as an intake device (not shown).
The intake frame 7 communicates with the intake port 12a, and an upwardly directed film cutter blade 13 is attached to the end of the intake frame 7 on the side of the film guide hole 2.

14 is a heating coating device provided on the rear side of the film guide hole 2;
A film presser frame 17, whose one end is rotatably pivoted to the lower part of 5 and 15 via a pivot 16, is configured to fall onto the intake frame 7 of the tray mounting section 3 when it falls forward. A heating mechanism 18 having a built-in heater is integrally attached to the rear surface of the film presser frame 17, and a heating plate 19 provided within the frame at a position retreating from the frame surface of the film presser frame 17 is constantly heated to an appropriate temperature. It becomes heated and maintained.

Reference numeral 20 designates a tilting handle protruding from the end of the film presser frame 17.

The guide braketto 15 and 15 are formed slightly longer than the film holding frame 17 and 17, and the guide holes 21 and 21 are mounted from the lower end to the top, and the upper ends are hook -shaped. 2
1a, a cylindrical or prismatic film feed rod 22 is slidably installed between both guide holes 21, 21, and handles 23, 23 are fixed to both ends of the film feed rod 22, A film holder 24 which comes into contact with the film feed rod 22 at the lower end position of the film feed rod 22 is fixedly installed between the film guide hole 2 of the base 1 and the film cutter blade 13.

The outer periphery of the film feed rod 22 is coated with film adhesive using adhesive tape or the like, and the film holder 24 is coated with a film non-adhesive material.

In the figure, reference numeral 25 denotes a film presser rod installed horizontally between the bases of the film presser frame 17, which comes into contact with the upper surface of the film holder 24 when the film presser frame 17 is laid down, and also holds the film presser frame 17 horizontally. When folded down, a part of the frame becomes the switch mechanism 26 on the base 1.
is turned on, the intake device communicating with the intake hole 12 is driven, and then the band-shaped heating element 9 is heated by being energized.

The configuration of the packaging device of the present invention has been described above, and next, its functions and effects will be described.

First, with the film presser frame 17 raised, the film feed rod 22 is pulled up along the guide holes 21, 21 to the locking holes 21a, 21a.

As a result of this pulling up, the stretch film a, which was sandwiched between the film holder 24 and the film feed rod 22, is pulled with its end attached to the film feed rod 22, so that it is pulled through the film guide hole 2. The stretch film roll a of the film storage section 4 is fed out via the film guide roller 6, and stretched on the front surface of the film presser frame 17.

After the film tensioning operation, guide holes 21, 2
When the film feed rod 22 is pulled back along the line 1, the stretch film a is left in front of the film holding frame 17.

In the above state, the tray b containing the material to be packaged is placed on the placement recess adjustment frame 10 of the tray placement recess 8, and the film presser frame 17 is tilted onto the tray placement portion 3 by holding the handle 20.

When the handle 20 is tilted forward, the film presser frame 1
7 is placed upside down on the tray mounting portion 3 with the stretching film a stretched along with the heating mechanism 18 and the hot plate 19 using the pivot 16 as a fulcrum.

As a result of this placement, the switch mechanism 26 is turned on, and the stretch film a is cut at the position of the film cutter blade 13 in order to forcefully take in air from the intake hole 11, and at the same time its peripheral edge is attracted to the surface of the intake frame 7.

At this time, the stretch film a is heated to an appropriate temperature by the hot plate 19, so that it is highly elastic and sticky and covers the opening surface of the tray b, and at the same time covers the placement recess adjustment frame 10. , the internal pressure of the tray mounting recess 8 is reduced.

Next, the band-shaped heating element 9 is energized and the band-shaped heating element 9 is energized.
At the same time as the stretch film a in contact with the tray is fused and cut, the stretch film a is welded to the edge of the tray b, and the stretch film a is stretched over the opening surface while keeping the outer edge of the tray b in a reduced pressure state. Since the stretch film a has been heated and softened by the hot plate 19, it can be placed in close contact with the objects stored in the tray with almost no space.

Furthermore, when the film holding frame 17 is folded down, the end of the stretch film roll A' side cut by the film cutter blade 13 is between the film holder 24, the film feeding rod 22, and the film holding rod 25. , so that it does not move backward in the two directions of the film guide hole.

After the stretch film a is stretched over the opening of the tray b as described above, the end of the stretch film a located on the film holder 24 is placed on the film feed rod 26 with the film presser frame 17 raised again. By attaching the trays again, preparation for the next packaging is completed, and by repeating the above-described operations, the materials to be packaged stored in the trays can be wrapped one after another in tension.

[Effects of the invention] The effects of the invention will be described in comparison with the above-mentioned Utility Model Application No. 118649/1983 (cited example).

The biggest difference between the present invention and the cited example lies in the film presser frame.

That is, in the presser frame 17 of the present invention, the hot plate 19 is integrally provided at a considerable distance from the surface of the presser frame, whereas in the case of the cited example, the hot plate is extremely close to the surface of the presser frame. Although both are independent and separate from each other, in the case of the present invention, the presser frame 1
7, it forms a box-shaped heating mechanism 18 that is still integral with the heating mechanism 7.

Therefore, in the case of the present invention, the hot plate 19 is
7 and rotate together with the film onto the tray, but in the case of the cited example, only the presser frame rotates.

Therefore, the heating effect of the film is much more effective in the present invention, because the box-shaped heating mechanism 1
8, the hot plate 19 is always integral with the presser frame 17, whereas in the cited example, the hot plate is only parallel to the presser frame when the presser frame is in the standing position, and when the presser frame is in operation. , and are separated from the film.

Therefore, while the cooling effect works during the work, that is, during the rotation of the presser frame from the top to the bottom, there is a possibility that it may adhere to the hot plate, and in the cited example, 100% reliable operation is not possible. However, the present invention completely eliminates this defect.

[Brief explanation of the drawing]

The drawings show an embodiment of the packaging device for tray-plated products according to the present invention, in which Fig. 1 is an overall perspective view, Fig. 2 is a sectional view of the same side, and Figs. 3 to 5 are explanations showing the packaging operation. It is a diagram. 1...Base, 2...Film guide hole, 3...
Tray mounting table, 4...Film accommodating portion, 7...Intake frame, 8...Tray mounting recess, 9...Strip heating element, 10...Mounting recess adjustment frame, 11...Intake groove,
12...Intake hole, 13...Film cutter blade,
14... Heat coating device, 15... Guide bracket, 17... Film presser frame, 18... Heating mechanism, 19... Hot plate, 20... Handle, 22...
Film feed rod, 24...Film holder, a...
Stretch film, b...tray.

Claims (1)

[Scope of utility model registration request] The base has a roll holding part that rotatably supports a roll of packaging film at the bottom of the base, and the end of the film is led out to the top surface of the base through a slit-like film guide hole bored in the base. and an intake frame, which has a band-shaped heating element wound around a tray mounting section provided on the front base surface of the film guide hole, and has an intake hole on its outer periphery that communicates with the intake device. In an apparatus for seal-wrapping products on trays with a stretch film, the lower end of a film presser frame 17 is pivoted to the film guide hole 2 side of the tray mounting section 8 so as to be tiltable with respect to the base 1. The film presser frame 17 is capable of falling over with respect to the tray mounting portion 8, and slides back and forth on the front surface of the film presser frame 17 to attach and tension the film end a. The heating coating device is composed of a feed rod 22 and is integrally provided with a heating plate 19 which is heated and maintained at a constant temperature by a box-shaped heating mechanism 18 at the rear of the frame surface of the film presser frame 17. The film holding frame 17 is tilted integrally with the heating plate 19 with respect to the tray mounting portion 8, and the film a stretched over the surface of the film holding frame 17 is moved onto the upper surface thereof. A packaging device for tray-plated products.