JP3400321B2 - Collection device for notched chips in packaging bags - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to, for example, a V-shape at a required position of a side edge portion of a continuous strip-shaped packaging bag formed by filling and packaging a liquid, a viscous material, a powdery granular material or the like with an automatic filling bag-making machine. The present invention relates to a device for collecting scraps generated when intermittently providing notches for guiding the opening of other shapes.

[0002]

2. Description of the Related Art In a packaging bag containing a synthetic resin material and having an opening sealed with a heat seal, in order to facilitate the opening of the packaging bag, a heat-sealed portion at a side edge of the packaging bag is provided with a minus shape or a V shape. It has heretofore been widely and generally practiced to provide a notch for opening guide having a zigzag shape or the like.

[0003]

By the way, in forming such a notch, when the notch has, for example, a negative shape, no scrap is generated regardless of the formation mode of the notch. While there is no problem with the processing of scraps, the presence of notches
In order to verify by visual and tactile makes it easier, the notch, V-shaped, when the zigzag, etc., where the occurrence of disconnect debris <br/> becomes inevitable, the conventional special processing of the抜屑because it did not take the Tedate,抜屑is scattered around the notch forming apparatus, deposition and it is, it may like to static electricity and other by抜屑adheres to the packaging bag, in particular a latter In some cases, when the packaging bag is repackaged with the main food or the like, the scraps attached to the packaging bag may be transferred to the main food side.

Therefore, the present invention surely collects the scraps generated by the formation of the notches, thereby sufficiently preventing the scraps from being scattered and accumulated and attached to the packing bag. A scrap recovery device is provided.

[0005]

Recovery of notching抜屑of the packaging bag Means for Solving the Problems] is the a disconnect blade provided on one of the circumferential surfaces of the pair of rolls to sandwich the continuous strip packaging bag extend parallel to one another other roll By pressing against the peripheral surface, scraps of the notch formed in the side edge portion of the continuous strip-shaped packaging bag, inside the punching blade,
For example, it can be held by suction, and when the roll provided with the cutting blade reaches the predetermined rotation position, the scraps can be dropped into the collecting means, and according to this, by the action of each individual cutting blade. All the generated scraps are
Since it will be surely dropped into the collecting means, scattering and accumulation of scraps, as well as its attachment to the packaging bag, are sufficiently prevented.

In view of the above, in the notch forming waste collecting device of the present invention, the continuous strip-shaped packaging bag is provided on one circumferential surface of a pair of rolls that extend in parallel with each other and sandwich the continuous strip-shaped packaging bag. Positioned corresponding to the edge portion, provided with a punching blade whose front contour shape is closed, the inside of this punching blade is communicated with one opening formed in the roll end surface via a cavity portion provided inside the roll, A suction port for sucking air in the cavity and a blow port for blowing air into the cavity are provided adjacent to each other so as to be adjacent to each other in sequence in the rotation direction of the roll, and the extraction blade is provided. The scrap collecting means is arranged in the plane including the movement path of the .

In this collecting device, the V-shaped notch or other shape can be formed at a required position on the side edge portion of the continuous strip-shaped packaging bag by pressing the punching blade against the peripheral surface of the other roll. . On the other hand, the debris generated by this is sucked and held by the inner part of the cutting blade, which communicates with the hollow portion by sucking the air in the hollow portion through the opening of the roll end under the action of the suction port. This holding state is reliably continued until the opening passes the position of the suction port due to the rotation of the roll. Therefore, the scraps will not be scattered or accumulated around the notch forming device, and will not adhere to the packaging bag.

By the way, the removal of the sucked and retained scraps from the cutter blade is performed by stopping the suction of the air in the cavity, and more preferably, by blowing air into the cavity. It is possible to realize the reliable collection of the scraps by dropping the scraps separated from the scraper into the scrap collecting means. In addition, in this recovery device, it is possible to provide a plurality of punching blades, cavity portions and openings corresponding thereto at intervals in the circumferential direction of the roll. Can be formed.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a schematic line perspective view showing a notch-forming waste collecting device according to the present invention. In FIG. 1, reference numeral 1 is a continuous strip shape in which an object to be packaged is pre-filled with a bag by an automatic filling bag-making machine, for example. Shows the packaging bag,
Reference numeral 2 denotes a pair of rolls that extend in parallel to each other in the horizontal direction and sandwich the continuous strip-shaped packaging bag.

Here, on the peripheral surface of one roll 3, at least one side of the continuous strip-shaped packaging bag 1, that is, both sides in the figure, the side of the vertical seal portions 1a and 1b shown by hatching in the figure. The punching blades 3a and 3b positioned corresponding to the edge portions are provided respectively, and the front contour shape of each of the punching blades 3a and 3b is a polygonal shape,
The shape is closed by forming a star shape or other irregular shape. It should be noted that the punching blades 3a and 3b may be provided one by one on the peripheral surface of the roll 3 or may be provided by a plurality at a constant interval in the circumferential direction.

2A and 2B are a lateral cross-sectional view and a side view of a main part showing one of the punching blades 3a in the case where a plurality of circumferentially spaced cutting blades are provided. Here, a closed contour shape is formed. The insides of the punching blades 3a are communicated with the hollow portions 5 provided inside the roll 3 so as to correspond to the punching blades 3a, through the holes 6, and the hollow portions 5 are connected to the roll end surface. It is also communicated with the atmosphere through the one opening 7 formed in 1.

On the other hand, on the fixed side of the apparatus, the roll 3
Of the roll 3, the suction port 8 and the blowing port 9 facing each opening 7 with a slight gap from the end surface of the roll 3,
As a result, the openings 7 are sequentially provided adjacent to each other in the rotation direction, and when each opening 7 reaches a position facing the suction port 8, the cavity 5 and the holes 5 and the holes are passed through the opening 7 under the action of the suction port 8. 6. Air is sucked from 6 and then each opening 7
When it reaches the position facing the hole, air is blown into the opening 7 and the cavity 5 from the blow-in port 9 thereof, whereby the hole 6
Bring out air from.

Further, the suction port 8 and the blowing port 9
The lower surface of the roll 3, the peripheral surface of the roll 3 and, by extension,
The scrap collecting means 10 is arranged at a position corresponding to a. By the way, the cavity 5, the hole 6, the respective mouths 7,
The configurations of 8, 9 and the like are the same for the other punching blade 3b.

The notch is formed in the side edge portion of the continuous strip-shaped packaging bag 1 by the scrap collecting apparatus having the above-mentioned structure.
As shown in FIG. 1, under the synchronized rotation of the pair of rolls 3 and 4, each punching blade 3 provided on one roll 3
Continuous strip-shaped packaging bag 1 in which a and 3b are sandwiched between both rolls
It can be carried out by pressing against the hard or somewhat soft peripheral surface of the other roll 4 via the side edge portion of, and thus, according to the diamond-shaped contour cutting blades 3a, 3b shown in the drawing, a continuous strip shape is obtained. Each vertical seal portion 1a of the packaging bag 1,
The V-shaped notches 1c and 1d are formed in the die 1b one by one.

The notches 1c and 1d are thus formed.
The substantially triangular-shaped scraps that are generated as a result of the formation of the holes are removed by aligning the opening 7 with the suction port 8 in time with the action of the cutting blade 3a, as shown in FIG. 2B, for example. Based on the air suction from the hole 6 inside the blade 3a, it is adsorbed and held in the hole 6a. Here, this suction-holding state is reliably maintained until the opening 7 reaches the end position of the suction port 8 extending in a substantially arcuate shape as shown in the figure, and during that time, the scraps fall from the cutting blade 3a. Without doing so, it makes a rotational movement together with the extraction blade 3a.

On the other hand, when the opening 7 is rotated to a position beyond the suction port 8, the hole 6, and hence the scrap, is released from the action of the suction force. Although it is possible to spontaneously drop from the punching blade 3a based on the above, here, in order to reliably drop the scraps at a predetermined position, the opening 7 is made to face the blower opening 9 subsequently. By blowing out the air blown from there through the holes 6, the scraps inside the punching blade 3a are forcibly blown off from the punching blade 3a, and the scraps separated from the punching blade 3a are sucked into the suction port. 8 and the blow-in port 9 are dropped into the scrap collecting means 10 arranged in the lower part. Note that the above is similarly performed for the other punching blade 3b.

Thus, here, the scraps generated by the formation of the notches 1c and 1d can always be reliably dropped into the scrap collecting means 10 provided at a predetermined position, whereby the scraps are scattered. It is possible to effectively prevent the occurrence of inconveniences such as accumulation, deposition on a continuous band-shaped packaging bag, and the like.

[0018]

As is apparent from the above description, according to the present invention, as described above, the scattering of scraps,
Accumulation, adherence to a packaging bag, etc. can be effectively prevented, and the device of the present invention can easily and reliably realize the collection of scraps .

[Brief description of drawings]

FIG. 1 is a schematic perspective view showing an embodiment of an invention device.

FIG. 2 is a lateral cross-sectional view and a side view of an essential part showing a case where a plurality of punching blades arranged at intervals in the circumferential direction are provided.

[Explanation of symbols]

1 Continuous strip packaging 1a, 1b Vertical seal part 1c, 1d notch 2 pairs of rolls 3 One roll 3a, 3b Extraction blade 4 The other roll 5 cavity 6 holes 7 openings 8 suction port 9 Inlet 10 Scrap collection means

─────────────────────────────────────────────────── ─── Continuation of front page (58) Fields surveyed (Int.Cl. ⁷ , DB name) B65B 61/00 B65B 61/18 B65B 9/00-9/24 B26D 7/18 B31B 1/90 B31B 21 / 14 B31B 23/14

Claims (2)

(57) [Claims] 1. A closed-contour-shaped cutting blade is provided on one circumferential surface of a pair of rolls extending in parallel to each other and sandwiching a continuous strip-shaped packaging bag, the blade being located corresponding to a side edge portion of the continuous strip-shaped packaging bag. , The inside of this punching blade is communicated with one opening formed in the end surface of the roll through a hollow portion provided inside the roll, facing the opening, a suction port for sucking air in the hollow portion, and
Collection of notch-shaped scraps in a packaging bag, in which blow holes for blowing air are provided adjacent to each other in the cavity, and scrap collecting means is arranged in a plane including the moving path of the cutting blade. apparatus. 2. The collecting device for collecting notch scraps of a packaging bag according to claim 1 , wherein a plurality of the punching blades, the corresponding hollow portions and openings are provided at intervals in the circumferential direction of the roll.