JPH0629053B2 - Solid packing equipment - Google Patents

Description

TECHNICAL FIELD The present invention relates to a packaging device for squeezing and packaging fruits, buns, solid soaps, and similar solids with a packaging material.

<Prior Art> The applicant of the present invention, prior to this application, is
The packaging device shown in 37683 is proposed.

More specifically, the solid material packaging apparatus includes a solid material holder provided with a recess into which the solid material to be packaged is freely inserted and removed,
A shutter provided at the opening of the recess of the solid object holder so that the center of the opening can be expanded and contracted, a transfer table that supports the solid object holder and the shutter, and the inside of the recess when the shutter is open. A solid material charging device for charging the solid material covered with the packaging material such that the squeezed end of the packaging material projects outward from the opening of the shutter; and a sealing device for sealing the squeezed end of the packaging material. In the container, the solid material holder or the shutter is rotatably supported on the movable table, and the shutter in which the squeezing end of the packaging material is squeezed and fixed is in a closed state. When the transfer table moves, a drive member that engages with the rotatably supported solid object holder or shutter and causes relative rotation between the solid object holder and the shutter is provided. It is characterized in.

In particular, regarding the structure of the shutter, as shown in FIG. 13, a plurality of blades (70) and a ring (80) are provided, and a ring (8
When (0) is rotated in the direction of arrow M, the guide pin (90) on this ring (80) spreads the blade (70) around the pivot pin (11), and the ring (80) is turned in the opposite direction. It is designed to close when rotated.

The packaging device covers the article to be packaged with a packaging material such as a plastic film and wraps it in a hemispherical shape, and then the remaining part is covered by a shutter (S) formed to be expandable and contractible as shown in FIG. Then, the squeezed portion is finally rotated, twisted, heat-sealed, or sealed by other suitable means.

However, in this device, since the shutter is composed of a plurality of blades (70) ... (70) formed by triangular plate materials with rounded corners, there is a squeezing hole formed when the packaging material is squeezed. There was the problem of not forming a circle. Therefore, in this device, the packaging material cannot be narrowed down to a desired thinness, and it is necessary to further rotate and twist the narrowed portion. This twisting process complicates the apparatus and requires a lot of processing time.

Regarding this point, for example, Japanese Patent Publication No. 60-31
It has been proposed that the blades of the shutter are configured so as to form an arc similar to that of a diaphragm lever as seen in Japanese Patent No. 686.

This device is a sealing and twisting machine for bag-filled packages, and has the following configuration.

That is, in the case, a rotatable pinion, a seat plate that supports a plurality of vertical shafts for fixing the narrowing between the pinion, and a free rotation of a predetermined interval between the seat plate and the seat plate. A lever guide having an allowable engaging device is housed, a diaphragm lever having a guide pin at one end is fixed to the upper portion of the vertical shaft, and the diaphragm lever is notched toward the center on the bottom surface of the lever guide. The guide groove is provided at the free end of the guide, but it is provided with a guide groove that engages with the guide pin, two sets of fixing brackets that face the lower part of the case and operate at the same time, and a swingable package receptacle is provided below the fixing bracket. It is characterized by that.

The apparatus itself configured as described above is intended to automatically squeeze, twist, and close the bag mouth of the bag packaged product to achieve such automation of work and improvement of hygiene management. .

If a shutter is formed by using a large number of arc-shaped blades (more than the number disclosed in this Japanese Patent Publication No. 60-31686) like the diaphragm lever of the present invention, theoretically, the packaging material can be narrowed down to a desired thinness. It should be possible.

<Problems to be Solved by the Invention> However, in the drawing work using such a device, the wrinkles of the seal when the product is squeezed are not constant, and as they are, the product after packaging is completed. However, it was hard to say that the product maintains the packaging uniformity.

Therefore, even in the device shown in Japanese Patent Publication No. 60-31686, the twisting operation of the sealing is finally premised.

Therefore, even in the publication shown in Japanese Patent Publication No. 60-31686, the work of twisting together with the closing of the sealing is involved, which complicates the mechanical structure and, compared with the process of only drawing, the device The operation time was long.

The present invention seeks to solve such a problem by ensuring the diaphragm and eliminating such a twisting or twisting process.

<Means for Solving Problems> In view of the above problems, the present invention is directed to at least one shutter (4) having an opening (60) through which an object to be packaged can be opened and closed, and this shutter (4). Fixing means (31) for supporting at least the article to be packaged while being wrapped in the packaging material through the opening of the shutter (4), and the shutter (4) is formed into a plurality of thin plate-like sheets stacked so as to form a vehicle seat. This blade (6) has an edge (6a) on the inside of the car seat that forms an arc, and this edge (6a) forms a shutter (4).
The opening (60) is formed, and by opening the opening (60) of the shutter (4), the packaged object inserted while being wrapped in the packaging material is fixed in the direction of the fixing means (31). In the solid packaging apparatus characterized by squeezing the upper part of the packaging material that wraps the object to be packaged by closing the opening (60) of the shutter (4), It is taken.

That is, an annular lower plate-like body (2) having a through hole (21) in the center is arranged on the side of the shutter (4) on which the article to be packaged is taken. On the surface of the lower plate-shaped body (2) opposite to the surface facing the shutter (4), radial squeezing grooves (22) are formed. When the packaging material together with the article to be packaged passes through the lower plate-shaped body (2), the packaging material becomes
By contacting with 2) ..., a squeezing habit for smoothly squeezing the shutter (4) is given in advance.

<Operation> In the present invention using the above means, when passing through the shutter (4) for squeezing the packaging material, the packaging material is inserted into the drawing habit forming groove (22) of the lower dish (2). However, since the squeezing habit is forced, the squeezing method of the packaging material is made uniform.

<Embodiment> A preferred embodiment of the present invention will be illustratively described in detail below with reference to the drawings. However, the dimensions, shapes, materials, relative positions, etc. of the constituent parts described in this embodiment are not intended to limit the scope of the present invention to them unless otherwise specified. , It is just an example of explanation.

FIG. 1 is a partial cross-sectional side view showing an embodiment of the packaging device of the present invention.

In this embodiment, the through hole (11) (2) through which the article to be packaged (H) can pass
(0) concentrically, sandwiching the resin packaging material (F) between each other, the upper and lower dish-like bodies (1) and (2), and the through holes of the upper and lower dish-like bodies (1) and (2) (11) A fixing means (3) for fixing the article to be packaged (H) inserted into (21), and a through hole (21) arranged between the lower dish-like body (2) and the fixing means (3). ) And a shutter (4) that can be freely expanded and contracted.

On the upper surface of the lower dish-like body (2), a drawing groove (22) is radially engraved around the through hole (21) (Figs. 3 and 5).
Figure). The narrowing groove 22 may be provided in a straight line as in this embodiment, or may be provided in a spiral curve. Further, the drawing-prohibition groove (22) may be provided on the lower surface of the upper dish-shaped body (1).

The upper dish-shaped body (1) moves up and down by a cylinder provided above it, and holds the packaging material (F). That is, as shown in the figure, with the upper dish (1) raised, the packaging material (F) is pulled out, and the upper dish (1) and the lower dish (1)
Place it between (2), then lower the dish (1) above and put it in the packaging.
(F) is sandwiched between the upper and lower dish-like bodies (1) and (2). In this state, the wrapping material (F) is lowered with the upper plate-shaped body (1).
It is pressed against the nichrome wire (24) by (23) (Fig. 5),
Fused. In addition, when the packaging material exhibits remarkable elasticity, the dish-shaped body (1) may be omitted.

The fixing means (3) is a lower support that supports the article to be packaged (H) from below.
It is composed of (31) and a sandwiching body (32) (32) sandwiching it from the side.
The lower support (31) can be slid up and down by the cylinder (35) and is initially located at the upper side as indicated by the chain double-dashed line (first
Figure). That is, the object to be packaged (H) passes through the through holes (11) and (21) of the upper and lower dish-like bodies (1) and (2), and first, the lower support (3) of this initial position.
Then, the lower support (31) senses this contact with a limit switch (not shown) or the like, and moves downward. Then, as shown in FIG. 2, when the lower support (31) is lowered to the position of the moving part, the limit switch (33) is turned on, and the holding body (32) is turned on.
(32) pinches and fixes the object to be packaged (H). The lower limit position of the lower support (31) can be adjusted according to the height of the article to be packaged (H). It is desirable that the top of the article to be packaged (H) be slightly below the shutter blades (6) ... (6) described later (Fig. 12). The lower limit position of the lower support body (31) can be adjusted by rotating the handle (34) shown on the right side in FIG. 1 to move the cylinder (35) up and down.

The shutter (4) is arranged below the lower dish (2), and in this embodiment, it has a structure as shown in FIG. The shutter (4) is arranged below the lower dish (2) and is fixed to a base, and a fixed blade (5) and shutter blades (6) arranged below the fixed disk (5). ) ... (6) and a rotating disk (7) arranged below the shutter blades (6) ... (6) to operate the shutter blades (6) ... (6).

The fixed disk (5) has through holes (11) (2) for the upper and lower dish-shaped bodies (1) (2).
There is a hole (51) of approximately the same size as 1).
Around the (51), shaft stopper holes (52) and (52) are formed at equal intervals. A pair of welding pieces is placed on the fixed disk (5).
(8) and (8) are provided, and the welding pieces (8) and (8) are provided so that they can slide in the mutually opposing directions and come into contact with each other at the center of the hole (51).

In this embodiment, ten shutter blades (6) ... (6) are used, and the shape of one blade is as shown in FIG. (If there are two or more shutter blades, it will be useful,
6 or more is desirable).

That is, in this shutter blade (6), the inner edge (6a) has a hole (51) in the fixed disk (5) and through holes (11) in the upper and lower dish-like bodies (1) and (2).
It is provided in an arc having substantially the same curvature as the circumference of (21), and the outer edge portion (6b) is provided in an arc that is substantially parallel to this arc. (Fig. 9). Also, this shutter blade
The support shaft (61) is projected on the upper surface of (6) and the sliding shaft (62) is projected on the lower surface, and the support shaft (61) is in the shaft stop hole (52) of the fixed disk (5).
The sliding shafts (62) are fitted into the sliding grooves (73) of the rotating disk (7) described later, respectively. The rotating disk (7) has a fixed disk (5) in its center.
Has a hole (71) similar to the above, and a gear (72) is engraved on the peripheral surface thereof. This gear (72) meshes with the pinion gear (P) shown in FIG. 1, so that the rotating disk (7) is a motor.
It rotates by (M) (it may be configured to rotate manually). Further, the rotating disk (7) is provided with ten sliding grooves (73) ... (73) in the radial direction. The sliding grooves (73)
The sliding shafts (2) ... (62) of the shutter blades (6) ... (6) are fitted into the (73) as described above.

The usage method of this embodiment having the above-mentioned configuration for leaving it in the package will be described below.

First, the packaging material (F) is pulled out to the front of the upper and lower dish-like bodies (1) and (2) (Fig. 5). At this time, the above-mentioned drawing tendency groove (22)
The packaging material (F) comes into contact with the
The position of the wrinkles to be drawn when squeezing is determined in advance. Next, lower the dish (1) above and wrap it with the dish (2) below.
(F) is pressed down by the pressing piece (23) that descends at the same time as the upper dish (1), and is cut by the nichrome wire (24).

Through the through holes (11) (21) of the upper and lower dish-shaped bodies (1) (2),
Push it in through. FIG. 7 shows the state before pushing, and FIG. 8 shows the state after pushing. In this state, the article to be packaged (H) is half wrapped in the packaging material (F) and comes into contact with the lower support (31). Between the top of the article to be packaged (H) and the upper and lower dish states (1) and (2), the unwrapped packaging material is stretched in a cylindrical shape as the packaging material open end (F1). Also, the object to be packaged (H) should
It is fixed by 2).

In this state, the shutter blades (6) ... (6) of the shutter (4) are closed, and the opening / closing end (F1) of the packaging material is focused and squeezed. The structure of the shutter is as described above, but here the ninth
The detailed movement will be described with reference to FIGS.

FIG. 9 shows a state in which the shutter (4) is open, the shutter blades (6) ... (6) overlap each other in a ring shape, and a diaphragm hole (60) is formed in the center thereof. Incidentally, FIGS. 9 to 11
In the figure, the illustration of the fixed disk (41) for fixing the support shafts (61) ... (61) of the shutter blades (6) ... (6) is omitted.

When the rotating disc (7) started to rotate counterclockwise as shown in FIG. 10 by the motor (not shown), it was fitted in the sliding groove (not shown) of the rotating disc (7). Shutter blade (6)
… (6) Sliding shafts (62)… (62) move in the same direction. The shutter blades (6) ... (6) have their support shafts (61) ... (61) side fixed by a fixed disk (not shown),
(6) ... (6) shifts as shown in the figure, and starts to contract the aperture hole (60). At this time, since the inner edges of the shutter blades (6) ... (6) are formed in an arc shape, the shape of the aperture hole (60) is close to a circle.

When the rotating disk (7) further rotates, the shutter blades (6)
As shown in FIG. 12, (6) can be narrowed down so that the aperture hole (60) is almost closed.

In this way, when the aperture holes (60) of the shutter blades (6) ... (6) are squeezed, the open end (F1) of the packaging material (F) is squeezed to the first position.
The state shown in FIG. 3 is obtained. After this, the welding pieces (8) (8)
Protruding so as to sandwich the narrowed part of this packaging material (F),
While welding this part, the excess part (F2) above the packaging material (F) is cut off.

Through the above steps, the article to be packaged H) is wrapped with the packaging material (F), and then the packaging material (F) is heat-shrinked by passing through a hot air generator (not shown). If so, the packaged object (H)
Is packaged in a beautifully stretched state.

In addition, if multiple units of this device are connected in the direction of pulling out the packaging material (F), the packaging speed will increase and
Since only one roll of packaging material (F) is required, efficient packaging work can be performed.

<Effects of the Invention> By implementing the invention of the present application, even when the packaging material is closed, the packaging material can be reliably and uniformly narrowed down without twisting the packaging material, and nonuniformity due to uneven packaging of the product is completely eliminated. .

[Brief description of drawings]

1 to 12 show an embodiment of the present invention.
FIG. 1 is a partially cutaway schematic side view, FIG. 2 is an enlarged view of a main part showing a fixing means, FIG. 3 is an exploded perspective view of a shutter, FIG. 4 is a perspective view of shutter blades, and FIG. FIG. 6 is an explanatory view showing a pulled-out state, FIG. 6 is an explanatory view showing a state of sandwiching the packaging material by the upper and lower dish-like bodies, FIG. 7 is an explanatory view showing a loaded state of a packaged object, and FIG. Explanatory drawing which shows a thing, 9th
FIG. 11 to FIG. 11 are plan views showing the operating state of the shutter blades, and FIG. 12 is a schematic vertical sectional view showing the state in which the packaging material is squeezed.
FIG. 13 is a plan view showing a conventional shutter. (1) (2) ... Plate-like body, (3) ... Fixing means, (4) ... Shutter,
(5) ... Fixed disk, (6) ... Shutter blade, (6a) (6b) ... Edge, (7) ... Rotating disk, (8) ... Welding piece, (11) (21) ... Through hole,
(22) ... Squeezing groove, (23) ... Presser piece, (24) ... Nichrome wire, (31) ... Lower support, (32) ... Holder, (33) ... Limit switch, (34) ... Handle , (35) ... Cylinder, (41) ... Fixed disk, (52) ... Shaft stop hole, (61) ... Spindle, (62) ... Sliding shaft, (73)
... Sliding groove, (72) ... Gear, (F) ... Resin packaging material, (F1) ... Opening end of packaging material, (H) ... Item to be packaged, (M) ... Motor, (P) ...
Pinion gear.

Claims (1)

[Claims] 1. An openable / closable opening (60) through which an article to be packaged can pass.
At least one shutter (4) having the above, and a fixing means (31) for supporting the article to be packaged inserted through the opening of the shutter (4) while being wrapped in the packaging material at least from below.
The shutter (4) is composed of a plurality of thin blades (6) stacked so as to form a car seat.
(6) has an edge (6a) that is an inner side of the seat forming an arc, and the opening (60) of the shutter (4) is formed by this edge (6a).
Is formed, and the opening (6
By opening (0), the packaged object inserted while being wrapped in the packaging material is passed in the direction of the fixing means (31), and the opening (60) of the shutter (4) is closed to thereby package the packaged object. In a solid object packaging device characterized by squeezing the upper part of the packaging material that encloses the packaging material, the shutter (4) has an annular shape with a through hole (21) in the center on the side of the article to be packaged. A lower plate-shaped body (2) is arranged, and a squeezing groove (22) is radially formed on the surface of the lower plate-shaped body (2) opposite to the surface facing the shutter (4). When the packaging material together with the article to be packaged passes through the lower dish (2),
The wrapping material has a squeezing habit so that it can be smoothly squeezed by the shutter (4) in advance by coming into contact with the squeezing habit-providing groove (22) of the lower dish (2). Characteristic solid packaging equipment.