JPH0699935A - Content average-arranging device for bagged package substance - Google Patents

Abstract

PURPOSE:To provide a device to effectively arrange in an average manner a fragile substance which is difficult to mechanically arrange in an average manner by a method wherein, when a bagged package substance, such as candies, is boxed, boxing is not satisfactorily carried out in case contents are arranged in a maldistributed state and average arrangement where the contents are dispersed on the whole is effected. CONSTITUTION:Bagged package substances 2 are conveyed frontward by means of a pair of upper and lower conveyors, and a lower conveyor 5 is formed such that push-up rollers 9 formed in a shape where a rotation locus is vertically fluctuated are mounted on rotary shafts 8 arranged at intervals of a specified distance. Meanwhile, an upper conveyor 4 is formed of a cushion material 12 which is brought into contact with the upper surface of the bagged package substance 2 and causes absorption of vertical movement amplitude.

Description

Detailed Description of the Invention

[0001]

[Industrial field of application] Bags and other powdered products such as candy balls, candy, cookies, and kanpan are handled by packing a number of bagging packages into one carton box, cardboard box, etc. .

However, in the case where a bag-filled package such as a candy is packed in a corrugated cardboard box, the content of the bag-filled package discharged from the bag-filling machine is usually concentrated in one side of the bag. . Therefore, if it is attempted to pack it as it is, only one part of the bags becomes bulky when stacked, and it cannot be packed well. Therefore, the contents are evenly distributed in some form and then packed manually or by a packing device. As described above, the present invention relates to a leveling device for leveling the contents in the bag as a pretreatment for packing the bag-packed package and facilitating the packing and other subsequent handling.

[0003]

2. Description of the Related Art Conventionally, a bag-packed package has been packaged in a box by shaking the bag by hand and gently tapping the bag surface with fingers to even out the contents. In addition, mechanically doing this involves sandwiching it with a pair of belt conveyors to force the contents in the bag to move by pressure from the outside, and applying vibration to equalize the contents. It is known that you have the idea to do so.

[0004]

The conventional manual method of smoothing the contents in the bag is very laborious and inefficient. Among the known mechanical methods, the method of moving the contents by pressing the bagged package from the outside with a belt conveyor or guide means is effective when the contents are powders with excellent fluidity. However, in the case of a candy such as a candy whose contents are relatively large and difficult to move, there are drawbacks that the leveling effect is small and the contents and the packaging bag may be damaged.

Further, the method of applying vibration to the bag package is as follows:
A force that moves the entire object in the same direction acts on the object vibrated by the vibration direction and amplitude. Therefore, the contents of the bag-filled package are not necessarily evenly distributed, and depending on the shape and packaging form of the contents, they may be entangled with each other, or they may not be biased toward one side, that is, the leveling effect may not be expected. there were.

In view of the above-mentioned drawbacks of the prior art, the present invention is one in which the contents are easily damaged or which has a relatively large shape and which cannot be processed by the conventional leveling device. It is an object of the present invention to provide a leveling device which has a relatively simple structure and is capable of surely leveling and not damaging the contents or damaging the outer bag.

[0007]

SUMMARY OF THE INVENTION The leveling device according to the present invention has a pair of upper and lower conveyors for transporting a bag-filled package forward, while leveling contents. Of the pair of upper and lower conveyors, the lower conveyor 5 is a kind of roller conveyor. That is, the rotation axis 8 arranged at regular intervals in the traveling direction has a shape in which the rotation trajectory of the outer periphery fluctuates vertically
For example, a push-up roller 9 having a polygonal cross-section is attached, and the moving packaged package 2 is supported by a plurality of push-up rollers in the traveling direction, and a part of the push-up roller 2 is pushed up at any time.

On the other hand, the upper conveyor 4 is a kind of belt conveyor, the surface of which is in contact with the upper surface of the bag package 2, that is, the lower conveyor 5 sandwiches the bag package 2 and transfers it. The contact surface is formed of a cushion material 12 capable of absorbing the vertical movement amplitude of the bag package. It is preferable that the moving speed of the upper conveyor 4 and the rotating speed of the lower conveyor 5 are as equal as possible.

[0009]

Function: For example, the bag-filled package 2 in which the contents are filled by the bag-filling machine 1 and the contents are unevenly distributed in one side of the bag.
However, when it is supplied between the upper conveyor 4 and the lower conveyor 5 of the leveling apparatus of the present invention, a part of the bag-filled package moving forward is rotated by one of the pushing rollers 9 of the lower conveyor.
Pushes up part of the bag. When a part of the bag is pushed up, the contents have an agitating effect, and the contents that are unevenly filled in a part of the bag gradually enter the space part of the bag as shown by the arrow in FIG. Moving.

At this time, the upper part of the bag-filled package is in contact with the upper conveyor 4, and the pressing force of the lifting roller 9 of the lower conveyor 5 is absorbed by the cushion material 12 of the upper conveyor. The pusher roller 9 of the lower conveyor 5 is rotated to push up the bagging package 2 at a position having a large rotation trajectory, but it is assumed that the rotation speed of the pushup roller 9 and the moving speed of the bagging package are equal. Then, due to the relative relationship, slippage does not occur between the two, and the bag package is simply pushed up from below.

The action of pushing up the bag package 2 from below is as follows.
This is performed one after another by the push-up rollers 9 arranged at a constant interval. In other words, the same action as tapping with the fingers from the bottom of the bag-filled package lifted by the hand is performed, whereby the contents are evened out in a relatively short time.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the contents leveling device for a bag package according to the present invention will be described below with reference to the accompanying drawings. FIG. 1 is a schematic front view of the entire apparatus, in which the contents of a bag-filled package 2 discharged from a bag-filling machine 1 are leveled and discharged onto a conveyor 3 in the next step. Is shown.

The leveling device is composed of a pair of upper and lower conveyors, that is, an upper conveyor 4 which is a kind of belt conveyor, and a lower conveyor 5 which is a kind of roller conveyor. The bagging package is sandwiched between the two conveyors. To be transferred to. The lower conveyor 5 has an introduction belt conveyor 6 on the introduction side and a discharge belt conveyor 7 on the discharge side.
Are provided respectively.

The lower conveyor 5 has, as shown in FIGS. 1 to 3, two or three square block-shaped push-up rollers 9 in each of the rotating shafts 8 arranged at regular intervals in the illustrated embodiment. Attach all the rotating shafts 8, 8 and the introduction belt conveyor 6 and the discharge belt conveyor 7,
It is linked by chain drive. As shown in FIG. 2, a pair of guide plates 10 for guiding the bag package is arranged outside the push-up roller 9.

The upper conveyor 4 abuts on the upper surface of the bag-filled package 2 to be transferred and acts to send it forward. The upper conveyor 4 has a prismatic cushioning material 12 on the surface of the belt 11. Is fixed in the width direction to form a cushion layer having a constant thickness, absorbs the vertical movement amplitude of the bag-filled package pushed up from below, and does not give a strong impact to the bag-packaged body.

The cushion material 12 of the upper conveyor is
For example, it is made flexible such as sponge rubber, and its surface is covered with a flexible sheet material 13, and the cushion material 12 is wrapped with the sheet material 13 and fixed to the surface of the belt 11. As a result, the upper conveyor 4 is provided with a cushion layer having a relatively large thickness, and is an endless belt in which the cushion material 12 is not deformed at the folded portions of the head and tail pulleys.

The push-up roller 7 of the lower conveyor 5 may be of a size long in the width direction of the moving bagging package 2, but as shown in FIGS. It is preferable that the block-shaped pushing-up roller 7 is mounted to support the bag package 2 at a plurality of points in both the transfer direction and the width direction.

FIGS. 2 and 3 show examples of the push-up roller having a quadrangular cross section and a circular cross-section. The push-up rollers are shown in FIGS. 6 (a) to 6 (e). It is possible to use various shapes having a ridge portion on the outer periphery as shown by (). Alternatively, the circular roller may be eccentrically supported. The circular or hexagonal or higher polygonal push-up roller is mainly used for a portion which acts as a feed roller of the bag package. The shape of the push-up roller is appropriately selected depending on the shape and size of the bag package, and the type of contents.

Next, the step of leveling the contents of the bag package will be described with reference to FIGS. Generally, bag filling machine 1
When the contents are filled with, the contents are accumulated under the bag, and when the contents are discharged to the next step, the contents of the bag package are biased toward the front part in the traveling direction. In this state,
It is fed between the upper conveyor 4 and the lower conveyor 5 and is shown in FIG.
When a large amount of content is biased by the push-up roller 8 of the lower conveyor as shown in Fig. 3 and the thickened portion is pushed up, the content in the bag moves in the space direction in the bag as indicated by the arrow due to the stirring effect. try to.

When the bag-filled package is pushed up by the push-up roller 8, as shown by X ₁ and X ₂ in FIG. The cushion material 12 of the upper conveyor which is in contact therewith is largely deformed. The large deformation of the cushion material 12 inevitably increases its reaction force. In other words, the cushion material 12 not only allows vertical movement of the bag package, but also imparts a moving force in the space direction to the unevenly filled contents in the bag. The magnitude of the reaction force of the cushion material varies depending on the material of the cushion material 12, and the flexibility of the cushion material to be adopted can be selected depending on the type of the bag package to be handled.

The push-up roller shown in FIG. 4 has a quadrangular cross-sectional shape, and the rotation phases of the adjacent rollers in the feed direction are shifted. Therefore, when one push-up roller pushes up the bag-filled package 2, a space is created in the vicinity thereof to promote the movement of the contents. The space forming effect due to the phase change of the rotation of the adjacent push-up rollers also differs depending on the shape of the push-up rollers. That is, in the case where the outer peripheral shape of the push-up roller has a large difference in rotational locus, for example, the shape shown by d or e in FIG. 6, a large moving space is generated in the bag to roughly level the contents. The shape shown by a and b in FIG. 6 is suitable for delicate leveling work. The work of leveling the contents in the bag is
It goes without saying that it is performed not only in the transfer direction of the bagged package but also in the width direction.

In the vicinity of the discharge portion where the work of leveling the contents of the bag package is almost completed, the top surface of the bag package 2 contacts the cushion material 12 of the upper conveyor in a substantially uniform state, and Y _{1 in} FIG. , Y ₂ , the deformation of the cushioning material is also small. Therefore, the interval Y ₁ between the upper and lower conveyors in the vicinity of the discharge part can be set to be slightly smaller than the interval X ₁ between the upper and lower conveyors in the introduction part of the bag package that is the object to be processed. By making both the intervals X ₁ and Y ₁ changeable, it is possible to deal with bagged packages of different types and states. This allows the entire upper conveyor 4 to be raised and lowered, for example in the entire apparatus shown in FIG.

FIG. 7 is an embodiment showing an example of the arrangement of the push-up rollers in the lower conveyor. The arrangement of the push-up rollers 9 in the introduction area A of the bagging package 2 which is the object to be processed,
The disposition of the push-up roller in the discharge area B is different. The push-up rollers 9, 9 in the introduction area A are all square rollers, which are arranged in a zigzag pattern of two or three in a row so that the smoothing operation inside the bag is easy. On the other hand, the push-up rollers in the discharge area B have three push-up rollers arranged in a line, and the push-up rollers at the center are circular rollers.

In the introduction area A, the content in the bag is largely biased, and by making all the rollers square,
A relatively large moving space for the contents is formed between the adjacent rollers, so that the contents are effectively leveled, and the pushing-up action of the rollers puts a large load on the contents, which may be damaged. Will disappear. On the other hand, the push-up rollers in the discharge area B are arranged in a row 3
By arranging a large number of individual rollers and a circular roller at the center, reliable delivery of the bag-filled package and a final leveling action are effectively performed.

By setting the moving speed of the upper conveyor 4 and the rotation speed of the push-up roller of the lower conveyor 5 to be substantially the same, the relative speed between the push-up roller 9 and the bag surface of the bag-packed package in contact with it is zero. Therefore, the bag surface can be prevented from being scratched. However, by changing the rotation speed of the roller of the lower conveyor, it is possible to act so as to relatively stroke the bag surface forward or backward. Such selection of the rotation speed of the push-up roller may be effective depending on the type of contents and the filling state.

[0026]

According to the contents leveling device of the bag-filled package of the present invention as set forth in claim 1, the contents are dispersed evenly by tapping the bag surface with fingers even at many points. The same operation as above, and the contents of the bag-wrapped package in which relatively large items such as candy, kanpan and biscuits, which were conventionally difficult to mechanically disintegrate, were packaged in a bag. It has the effect that the smoothing-in process can be performed effectively without damaging the.

According to the second aspect of the invention, the contents of the bag-filled package can be more effectively leveled, and the leveling effect in the width direction of the bag is excellent. can do.

According to the third aspect of the present invention, the relative speed in the moving direction between the push-up roller for pushing up the surface of the bag package and the bag package is set to zero, and the bag surface may be scratched or the like. There can be no.

[Brief description of drawings]

FIG. 1 is a front view schematically showing the entire contents leveling device of a bag package according to the present invention,

FIG. 2 is a plan view of the lower conveyor only,

FIG. 3 is a perspective view of only the push-up roller portion of the lower conveyor,

FIG. 4 is a cross-sectional view showing the leveling process status in the vicinity of the introduction part of the bag-filled package in the bag-packaged contents leveling device of the present invention;

FIG. 5 is a cross-sectional view showing the leveling process status in the vicinity of the discharge portion of the bag-filled package in the bag-package packed contents leveling device of the present invention;

FIG. 6 is a front view showing a modified example of the specific shape of the push-up roller,

FIG. 7 is a plan view showing an arrangement example of push-up rollers in a lower conveyor.

[Explanation of symbols]

2 ... bag package, 4 ... upper conveyor, 5 ... lower conveyor, 7 ... introduction belt conveyor, 8 ... discharge belt conveyor, 8 ... rotary shaft, 9 ... pushup roller, 11
… Belt, 12… Cushion material, 13… Seat material.

Claims (3)

[Claims] 1. A bag-filled package body 2 filled with contents is moved forward by a pair of upper and lower conveyors, and a lower conveyor 5 is arranged at a constant interval in the traveling direction and is rotated around a rotary shaft 8 which is driven to rotate. Is mounted with a push-up roller 9 having a shape in which the rotation locus of which moves up and down, and the moving packed package is supported by a plurality of push-up rollers 9, 9 in the traveling direction, and a part of the push-up roller 9 is pushed up at any time In addition, the upper conveyor 4 is in contact with the upper surface of the bag package, and the abutting surface is a cushion member 12 capable of absorbing the vertical movement amplitude of the bag package.
A device for leveling the contents of a bag package, which is characterized in that 2. A push-up roller 9 of the lower conveyor 5 is provided with a plurality of narrow widths mounted on a single rotary shaft 8, and one supporting position in the traveling direction of the bag-package to be transferred. 2. The apparatus for leveling the contents of a bag package according to claim 1, wherein a plurality of push-up rollers are supported in the width direction. 3. The push-up roller 9 of the lower conveyor 5 has a regular polygonal cross-section and the outer peripheral rotation speed is equal to the moving speed of the upper conveyor. The device for leveling the contents of a bag package according to claim 1, wherein the rotation phases are different from each other.