JPH02180107A - Packaging device for solid object - Google Patents

Abstract

PURPOSE:To make it possible to narrowly a shutter to a desired degree by a method wherein a shutter, which freely widens/narrows a saucer-shaped through hole, is consti tuted of a plurality of thin plate-shaped blades which are overlapped in circle, and the edges of these blades, which are located on the inner side of the circle, are formed in such a manner that they form an arc which is bent in the outward direction of the circle. CONSTITUTION:The title packaging device has through holes 11, 21, through which an object to be packaged H can pass, at the center of a circle, and is equipped with upper and lower saucer shaped bodies 1, 2, between which a resin packaging material F is pinched, a fixing device 3, which fixes the object to be packaged H which is inserted in the through holes 11, 21 of these upper and lower saucer shaped bodies 1, 2, and a shutter 4 which is arranged between the lower saucer shaped body 2 and fixing device 3 and freely widens/narrows the through hole 21. Between the top of the object to be packaged H and the upper and lower saucer shaped bodies 1, 2, the packaging material which is not used for packaging is extended in a cylindrical shape as a packaging material open and separate end F1. Shutter blades 6 of the shutter 4 close and narrow this packaging material open and separate end F1 while collecting it together.

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a packaging device for automatically squeezing and packaging fruits, steamed buns, bar soap, and other similar solid objects using a packaging material.

<Prior Art> The applicant has filed an application regarding this type of packaging device in Utility Model Publication No. 57-37683.

This device first wraps the packaged item in a hemispherical shape by covering it with a packaging material such as a plastic film, and then wraps the remaining part with a shutter (S
), and finally, the squeezed part was rotated and sealed with teardrops, heat welding, etc.

This shutter is composed of a plurality of blades (70) and a ring (80), and when the ring (80) is rotated in the direction of arrow M, the guide pin on this ring (80) (
90) slides inside the long hole 00) of the blade (70) and the blade (7
0) around the pivot bottle (11), and open the song (
80) in the opposite direction to close it.

<Problems to be Solved by the Invention> However, in the above device, since the shank is constituted by a plurality of blades (70) made of triangular plate materials with rounded corners, it is difficult to remove the packaging material. There was a drawback in that the shape of the aperture hole formed when the lens was narrowed down was not circular. For this reason, this device was unable to squeeze the packaging material to a desired thinness, and it was necessary to further rotate and twist the squeezed portion. This weeping process not only made the machine complicated, but also required a lot of processing time.

<Means for Solving the Problems> Therefore, the inventor of the present application conducted various studies regarding this device, and found that by improving the shape of the shutter, the step of rotating and twisting the aperture portion was omitted. The device consists of a dish-shaped body with a through-hole through which the object to be packaged passes, and on which the packaging material is placed; The present invention includes a fixing means for fixing the packaged item inserted while being wrapped in the packaging material, and a shutter disposed between the dish-shaped body and the fixing means to make the through-hole of the dish-shaped body freely expandable and contractible. It is characterized by being composed of a plurality of thin plate-like blades stacked one on top of the other to form a wheel seat, and the edges of the blades forming the inside of the wheel seat forming an arc bent in the direction outside the circle of the wheel seat. do.

<Function> The packaging material is placed on the top surface of the dish-shaped body, and the item to be packaged is pushed into the through-hole of the dish-shaped body. The pushed-in object to be packaged is wrapped in a hemispherical shape by pulling the packaging material placed on the top surface of the dish-shaped body by the pushed amount. At this time, the edges of the packaging material remain on the upper surface of the dish-shaped body, and between the packaged item and the dish-shaped body, there is a packaging material for the unwrapped part of the packaged item, that is, a packaging material separation part. An end is formed.

After the fixing means fixes the hemispherically wrapped material to be packaged, the shutter closes, thereby narrowing the open end of the packaging material. At this time, the blade of the shack, whose inner edge is formed in an arc, can be formed into a substantially circular aperture hole, so the aperture can be narrowed to a desired point.
Heat welding can be carried out in this state without requiring further laborious work.

<Embodiments> Preferred embodiments of the present invention will be described in detail below by way of example with reference to the drawings. However, the dimensions, shapes, materials, relative positions, etc. of the components described in this example are not intended to limit the scope of this invention to only those, unless otherwise specified. , is merely an illustrative example.

FIG. 1 is a perspective view showing an embodiment of the packaging device of the present invention, and FIG. 2 is a partially sectional side view of the same embodiment.

This embodiment has a through hole () through which the packaged object () I) can pass.
II) The upper and lower plate-shaped bodies (1) (2) that have the an concentrically and sandwich the resin packaging material (F) between them, and the penetration of these upper and lower plate-shaped bodies (1) (2). Hole 01) A fixing means (3) for fixing the packaged object (H) inserted into Qυ, and a through hole 1211 disposed between the lower dish-shaped body (2) and the fixing means (3) can be freely expanded and contracted. A shutter (4) is provided.

On the upper surface of the lower dish-shaped body (2), grooves (2) with a drawing groove are radially carved around the through hole (20). It may be provided in a straight line as shown in the figure, or it may be provided in a spiral curve.

Further, this drawing groove (2) may also be provided on the lower surface of the upper dish-shaped body (1).

The upper plate-shaped body (1) moves up and down by a cylinder provided above, and clamps the packaging material (F). That is,
As shown in the figure, with the upper plate (1) raised, pull out the packaging material (F) and place it between the upper plate (1) and the lower plate (2). Then lower the upper plate (1) and place the packaging material (F) on the upper and lower plates (1) (21
be held between. In this state, the packaging material (F) is pressed against the Nichrome wire by the pressing piece (2) that has descended together with the upper plate-shaped body (1) and is fused and cut. Incidentally, if the packaging material exhibits remarkable elasticity, the upper dish-shaped body (1) may not be provided.

The fixing means (3) consists of a lower support (2) that supports the packaged object (■) from below, and a clamping body that holds it from the side.The lower support (2) is a cylinder. (G) allows it to slide up and down, and is initially located at the top as shown by the two-dot chain line.In other words, the packaged object (H) can be moved through the upper and lower dish-shaped bodies (1) and (2). hole 01) (passes through 2υ, first contacts the lower support Cυ at this initial position, then lower support
When υ touches 20, it is detected by a limit switch (not shown), etc., and it moves downward. Then, as shown in Fig. 3, when the lower support 0υ is lowered to the same position, the limit switch (to) is turned on and the clamping body @ (to) clamps and fixes the packaged object () I). . Note that the lower limit position of this lower support Oυ can be adjusted depending on the height of the object to be packaged (old).・The position slightly below (6) is desirable.The lower limit of this lower support Oυ is adjusted by moving the cylinder up and down by rotating the handle shown on the right side of Figure 2. This can be done by

The shutter (4) is arranged below the lower plate-shaped body (2),
This embodiment has a configuration as shown in FIG.

This shutter (4) includes a fixed disk (5) arranged below the lower plate-shaped body (2) and fixed to the base, and a shutter blade (6) arranged below this fixed disk (5). )・
...(6) and this shutter blade (6)...(6)
It consists of a rotary disk (7) which is placed below the shank and operates the blades (6) (6).

The fixed disk (5) is provided with a hole l511 that is approximately the same size as the through hole 01) (211) of the upper and lower dish-shaped bodies (1) (2), and around this hole 6D are holes 1511 at equal intervals. A shaft stopper hole (up to) is bored in the hole.In addition, this fixing disk (5
) is provided with a pair of welding pieces (8) (8), and these welding pieces (81 (8) can slide in opposite directions and come into contact with each other at the center of the hole f51). It is set up like this.

In this example, 10 shutter blades m f6)...(6) are used, and the shape of each blade is as shown in Part 5 (if there are two or more shutter blades, it can be used) (6 or more is preferable).

That is, this shutter blade (6) has an inner edge (6a
) is the hole 6B of the fixed disk (5) and the upper and lower dish-shaped bodies (1).
(The through hole Qll of 21 is provided in an arc having approximately the same curvature as the circumference of 211, and the outer edge (6b) is provided in an arc that runs approximately parallel to this arc.
A support shaft (61) is provided on the upper surface of this shutter blade (6).
Sliding shafts (62) respectively protrude from the lower surface, and the supporting shafts (6
1) is a zero rotation disk (7) that is fitted between the fixing holes of the fixed disk (5), and the sliding shaft (62) is fitted into a sliding groove (73) of a rotation disk (7), which will be described later. has a fixed disk (5) in its center.
It has a hole (71) similar to that, and a gear (7
2) is engraved. This gear (72) meshes with a pinion gear (P) shown in FIG. 2, whereby the rotary disk (7) is rotated by the motor (M).

In addition, this rotating disk (7) is provided with ten sliding grooves (73)...(73) in the radial direction. As mentioned above, the sliding wheels (2)...(62) of the shutter blades (6)...(6)
) is inserted.

Next, a method of using this embodiment of the above-described structure for leaving packaging will be explained.

First, pull out the packaging material (F) to the front of the upper and lower plate-shaped bodies (1F (2) (Fig. 6)). Next, lower the upper plate-shaped body (1), and pull out the upper and lower plate-shaped bodies (1F). The packaging material (F) is pressed down by the holding piece (to) that descends at the same time as the upper plate-shaped body (1) and is cut by the Nichrome wire.

Push the packaged object (H) through the through holes (II) r2υ of the upper and lower dish-shaped bodies (1) and (2). Figure 8 shows the state before pushing, and Figure 9 shows the state after pushing. In this state, the object to be packaged (H) is only half wrapped in the packaging material (F) and comes into contact with the lower support (2). The unwrapped portion of the packaging material is stretched in a cylindrical shape as the packaging material open end (Fl) between the top of the packaged item ()■) and the upper and lower dish-shaped m (1) (2). There is. Moreover, the object to be packaged (H) is fixed by the clamping body (2) (to).

In this state, the shutter blade (6) of the shutter (4)
...(6) is closed, and the packaging phase open M end (Fl) is squeezed while converging. Although the structure of the shutter is as described above, the detailed movement will now be explained with reference to FIGS. 10 to 12.

FIG. 10 shows a state in which the shutter (4) is open, and the shutter blades (6)... (6) are overlapped in a ring shape, and an aperture hole (60) is formed in the center. still,
In Figures 10 to 12, the shutter blade (6)...
- The supporting shaft (61) in (6)...The illustration of the fixed disk that fixes the (61) is omitted.

When a motor (not shown) causes the rotation disk (7) to rotate counterclockwise as shown in FIG. Feather (
6)...The sliding shafts (62)...(62) of (6) move in the same direction. The support shafts (61)...(61) of the shutter blades (6)...(6) are fixed by fixed discs (not shown), so the shutter blades m (6)
...(6) shifts as shown in the figure, and the aperture hole (60) begins to shrink. At this time, shutter blade (6)...(6
) has an arcuate inner edge, so the aperture hole (
60) is nearly circular in shape.

As the rotary disk (7) further rotates, the shutter blades (6)...(6) can narrow down the aperture hole (60) to almost close it, as shown in Figure 12. .

In this way, when the aperture holes (60) of the shutter blades (6)...(6) are narrowed down, the open end (F) of the packaging material (F)
1) is narrowed down to the state shown in FIG.

After this, the welding pieces (8) (81) protrude to sandwich the squeezed part of the packaging material (F) and weld this part, while also welding the excess part (F2) at the top of the packaging material (F). truncate.

Through the above steps, the item to be packaged H) is wrapped in the packaging material (F), but after this, the packaging material (F) is heat-shrinked by passing through a hot air generator (not shown), etc. If so, the object to be packaged (H) will be wrapped in a more beautiful state with more tension.

If multiple units of this device are installed in series in the direction in which the packaging material (F) is pulled out, the packaging speed will increase and the packaging material (F) can also be rolled up, resulting in more efficient packaging work. It can be performed.

<Effects of the Invention> As described above, in the fixed object packaging device of the present invention, by improving the shape of the blade of the shutter, the open end of the packaging material can be narrowed down to a desired thinness. As a result, it was possible to omit the tear-watering process of this squeezing portion, its time, and its equipment. For this reason, the device has become more compact and can be used anywhere, for example at a fruit and vegetable store, making it very convenient.

[Brief explanation of the drawing]

FIG. 1 is a plan view showing a conventional shutter, FIGS. 2 to 13 show an embodiment of the present invention, FIG. 2 is a partially sectional side view, FIG. 3 is an enlarged view showing the fixing means, and FIG. Figure 4 is an exploded perspective view of the shutter, Figure 5 is a perspective view of the shutter blade, Figure 6 is an explanatory diagram showing how the packaging material is pulled out, and Figure 7 is an explanatory diagram showing how the packaging material is held between the upper and lower dish-shaped bodies. , FIG. 8 is an explanatory diagram showing the loading of the packaged items, FIG. 9 is an explanatory diagram showing the packaging items after loading, FIGS. 10 to 12 are plan views showing the operating state of the shutter blade, and FIG. The figure is a cross-sectional side view showing the packaging material in a squeezed state. (+1 (2)...dish-shaped body, (3)...fixing means,
(4)...Shutter (5)--Fixed disc, (6)
-...Shutter blade, (6a) (6b)...edge, (7)...rotating disk, (8)...welded piece, 01)
12υ...through hole, (2)...groove for drawing habit,■
... Holding piece, (company) ... Nichrome wire, (2) ...
・Lower support, (To)...Clip body, (To)...Limit switch, (B)...Handle, (2)...Cylinder, Mouse...Fixed disc, Import... Shaft hole, (61)・
... Support shaft, (62) ... Sliding shaft, (73) ... Sliding groove, (72) ... Gear, (F) ... Resin packaging material,
(Fl)...Packaging material open end, (11)...Packaged object, (M)...Motor, (P)...Pinion gear.

Claims (1)

[Claims] A dish-shaped body having a through-hole through which an object to be packaged passes and a packaging material is arranged on the upper surface thereof, and a dish-shaped body having a through-hole through which an object to be packaged passes, and a packaging material is arranged on the top surface, and an object to be packaged inserted through the through-hole of this dish-shaped body while being wrapped in the packaging material is fixed. The shutter is provided with a fixing means and a shutter disposed between the dish-like body and the fixing means to allow the through hole of the dish-like body to expand and contract, and the shutter is made of a plurality of thin plate-like blades stacked to form a wheel seat. configure,
A solid material packaging device characterized in that the edge of the blade on the inside of the wheel seat is formed into an arc bent in the direction outside the wheel seat.