JP6548321B2 - Packaging apparatus and method of manufacturing package - Google Patents

Description

The present invention relates to a packaging device and a method of manufacturing a package.

  As an apparatus for supplying a content such as liquid to a packaging bag to manufacture a package, a packaging material such as a film is sealed to form a bag shape, the content is supplied, and then the apparatus for sealing and sealing is known. It is done. At this time, if the content adheres to the film to be hermetically sealed, the content may be caught between the films, which may cause a seal failure.

  Patent Document 1 describes, as an air cutting mechanism for preventing dripping after filling is completed, a mechanism for removing contents (residues) remaining in a dripping pipe by intermittent compression air. However, the residue splattered by compressed air may adhere to the seal portion, which may increase bite. In addition, the packaging material is deformed by the compressed air, and wrinkles are easily generated in the sealing portion.

  Patent Document 2 describes a device for twisting off a stringing portion generated after the viscous fluid is discharged by relatively rotating the nozzle and the packaging material after filling. However, a mechanism for rotating the nozzle or the packaging material is required, and the equipment is complicated and expensive.

  Patent Document 3 describes a filling device that suppresses splashing and bubbling of a liquid by providing two pipes in a nozzle and reducing the flow rate per nozzle supply port. However, two filling systems are required, making the equipment complicated and expensive.

JP, 2010-202258, A JP 2011-218325 A JP, 2012-035890, A

The present invention has been made in view of the above circumstances, the discharge product is an object of the present invention to provide a seal manufacturing method of the packaging device and packaging that can be without biting seal.

In order to solve the above-mentioned subject, the present invention is a packing device provided with a discharge nozzle, a packing material supply means which supplies a packing material which counters to an external surface of the discharge nozzle, and a sealing means which seals the packing material. The discharge nozzle includes an outer cylinder surrounding a flow path of the discharge, a shaft provided inside the outer cylinder, and a valve body provided on the shaft, and the valve body is the outer cylinder When closing the flow path by closing the discharge port provided at the tip of the cylinder and opening the flow path, the discharge from the discharge port in a plane orthogonal to the longitudinal direction of the outer cylinder The packaging material is disposed along the two opposing directions in a plane perpendicular to the longitudinal direction of the outer cylinder, and the packaging material is disposed in the discharge nozzle. Arranged along the two opposing directions on the tip side It is to provide a packaging apparatus characterized by degassing roller is provided for supporting the packaging material from the outside.
The valve body is an inner surface of the outer cylinder in two directions perpendicular to the two opposing directions in a plane perpendicular to the longitudinal direction of the outer cylinder even when the valve body opens the flow passage. Alternatively, it is preferable to contact the peripheral edge of the discharge port to restrict the flow path in the two vertical directions.

Further , the present invention provides a method for producing a package, wherein the discharge material is supplied to the packaging material by the discharge nozzle using the packaging device, and the packaging material is sealed by the sealing means. .

  According to the present invention, when the valve body opens the flow path, the direction in which the discharge material is discharged from the discharge port is restricted in two opposing directions in the plane orthogonal to the longitudinal direction of the outer cylinder. Therefore, by arranging the packaging material along the two opposing directions, it is possible to suppress the adhesion of the discharge material to the packaging material. This makes it possible to seal the packaging material without the discharged matter biting into the seal portion.

It is a perspective view which shows an example of a discharge nozzle and a packaging apparatus. It is a longitudinal cross-sectional view which shows an example of the state of (a) open of the discharge nozzle, and (b) closed. It is a cross-sectional view which shows an example of the discharge nozzle in the inside of a packaging material.

Hereinafter, the present invention will be described based on preferred embodiments with reference to the drawings.
An example of the packaging apparatus provided with the discharge nozzle 10 is shown in FIG. The discharge nozzle 10 includes an outer cylinder 11 surrounding the flow path 14 of the discharge material, a shaft 13 provided inside the outer cylinder 11, and a valve element 12 provided on the shaft 13. In the upper part of FIG. 1, although the packaging material 30 and the upper part of the discharge nozzle 10 are notched and shown, actually, the discharge nozzle 10 and the packaging material 30 are extended upwards rather than showing in FIG. The outer cylinder 11 of the example of illustration is arrange | positioned so that the longitudinal direction of the flow path 14 may become an up-down direction (vertical direction) with respect to gravity.

  In the case of FIG. 1, the packaging material 30 has a configuration in which the lateral end portions of the film folded in a V-shape at the folded-back portion 32 are sealed by the seal portion 31. In this case, the discharge nozzle 10 can be inserted from between the ends of the film before the seal 31 is formed. The seal portion 31 is a vertical seal portion extending along the longitudinal direction of the packaging material 30. Moreover, in FIG. 1, although the packaging material 30 is made transparent and the shape of the discharge nozzle 10 is shown, the packaging material 30 may be opaque.

  In FIG. 1, a degassing device 20 is provided in the vicinity of the front end of the discharge nozzle 10. The degassing device 20 sandwiches the packaging material 30 by the pair of degassing rollers 21 and 22, and regulates the swelling of the packaging material 30 within the interval between the degassing rollers 21 and 22. The distance between the degassing rollers 21 and 22 is, for example, several millimeters, and even if the contents are supplied to the internal space 33 of the packaging material 30, the packaging material 30 can pass between the degassing rollers 21 and 22. In the vicinity of the tip end portion of the discharge nozzle 10, the cross-sectional shape 30S of the packaging material 30 is narrow at the seal portion 31 and the folded portion 32, and wide around the discharge nozzle 10.

  As shown in FIG. 2A, at the tip of the outer cylinder 11, a discharge port 15 for discharging the contents is opened. The illustrated valve body 12 is a poppet type provided at the tip of the shaft 13. In addition, it is also possible for the tip of the shaft 13 to project slightly below the valve body 12, and the valve body 12 may be provided on the side surface of the shaft 13. The valve body 12 includes a closing body 12 a that closes the flow path 14 by closing the entire discharge port 15. As shown in FIG. 2 (b), when the valve body 12 closes the flow path 14, the closing body 12 a closes the entire discharge port 15. The closing body 12 a may be in contact with one or both of the inner surface 11 a of the outer cylinder 11 or the peripheral edge 15 a of the discharge port 15 so that the closing body 12 a contacts the outer cylinder 11 and closes the flow path 14. The shape of the closing body 12 a in the cross section is preferably the same shape as the discharge port 15. In addition, in FIG. 2, an example of the position of the upper surface of the degassing apparatus 20 is shown with a dashed-two dotted line. The arrangement of the degassing device 20 is not particularly limited as long as the position where the minimum distance between the degassing rollers 21 and 22 is is below the discharge port 15.

  The valve body 12 has a partition 12b at the top of the closure 12a. FIG. 3 shows the arrangement of each part in a plane (hereinafter referred to as “cross section”) orthogonal to the longitudinal direction of the outer cylinder 11. The partition portion 12 b is formed to project in two directions so as to face both sides in the radial direction (direction orthogonal to the longitudinal direction) of the outer cylinder 11 in the cross section. As shown in FIG. 2 (a), when the valve body 12 opens the flow path 14, the closing body 12a protrudes downward and separates from the discharge port 15, and the partition 12b contacts the outer cylinder 11 so that the discharge port Restrict (limit) 15 channels. As a result, the discharge material (not shown) is discharged in two directions (discharge directions) A and B without the partition 12 b. The displacement of the valve body 12 can be either automatic control or manual operation, but automatic control is preferred. For example, it can be realized by operating the shaft intermittently with an actuator (not shown). Operations such as conveyance of the packaging material 30, sealing, discharge from the nozzle, etc. can be controlled to match the timing with the valve body 12.

  The packaging material 30 is disposed such that the two wall surfaces 30 a and 30 b face each other on both sides of the outer cylinder 11 in the cross section. In this case, although the two wall surfaces 30a, 30b contact or approach the outer surface 11b of the outer cylinder 11, since the wall surfaces 30a, 30b of the packaging material 30 are disposed along the discharge directions A, B It becomes difficult to adhere to the packaging material 30, and it is possible to suppress biting into the seal portion. Further, since the discharge directions A and B are two directions facing each other centering on the central axis of the outer cylinder 11 (the position of the shaft 13), the momentum components of the discharge along the cross section are canceled out. The momentum balances in the cross section. As a result, vibration does not easily occur even when discharged laterally, and stable discharge can be performed.

  The partition portion 12 b contacts the outer cylinder 11 in two directions perpendicular to the discharge directions A and B in the cross section, and can restrict the flow path in these two directions. The partition 12 b may contact one or both of the inner surface 11 a of the outer cylinder 11 or the peripheral edge 15 a of the discharge port 15 so that the partition 12 b contacts the outer cylinder 11 and regulates the discharge directions A and B. A mechanism may be provided to block the rotation of the valve body 12 around the shaft 13 by means of a key, a protrusion, or the like in order to match the arrangement of the partition 12b in the cross section.

The outer cylinder 11 in the illustrated example is a circular shape in which the cross-sectional shapes of the inner surface 11a and the outer surface 11b in the cross section are concentric, but may be another shape such as an oval, a rectangle, or a polygon. The cross-sectional shape of the shaft 13 is circular in the illustrated example, but may be another shape such as an oval, a rectangle, or a polygon.
In order to stabilize the discharge direction, particularly in the vicinity of the discharge port 15, these cross-sectional shapes are straight lines (left and right directions in FIG. 3) along the discharge directions A and B, and directions perpendicular to this. It is preferable that the line symmetry is in the vertical direction). The cross-sectional dimension of the outer cylinder 11 may be reduced stepwise or continuously toward the tip (discharge port 15).

  The configuration in which the valve body 12 regulates the discharge directions A and B is not limited to the partition portion 12 b that blocks between the shaft 13 and the inner surface 11 a of the outer cylinder 11. For example, the discharge directions A and B are also regulated by providing a tubular member around the entire inner surface 11a of the outer cylinder 11 in the vicinity of the discharge port 15 and providing an opening or a notch at a predetermined position of the tubular member. can do.

  According to the discharge nozzle 10 of the present embodiment, since the discharge directions A and B are on the side of the discharge nozzle 10, the adhesion range of the yarn in the longitudinal direction of the packaging material 30 is narrow even if the yarn of the discharge material extends a little There is no need to make the margin (length) of the packaging material 30 excessively large. Thereby, the packaging material 30 can be saved and a small packaging bag can be manufactured. Even if the discharge adheres to the packaging material 30 at the end of the discharge directions A and B, the thread of the discharge is broken due to the closing of the flow path 14 by the valve body 12, so the yarn does not extend easily. Re-adhesion of the discharged matter to the tip of the discharge nozzle 10 is also suppressed, so that it is possible to suppress biting due to transfer of the adhered matter from the discharge nozzle 10 to the packaging material 30.

  By supporting the direction of each wall surface 30a, 30b by the deaeration rollers 21, 22, even if the discharged material discharged from the discharge nozzle 10 adheres to each wall surface 30a, 30b, the discharged material adhered to the wall surfaces 30a, 30b Is difficult to approach the discharge port 15, and adhesion to the discharge nozzle 10 can be suppressed.

  The packaging apparatus of the present embodiment includes a discharge nozzle 10, a packaging material supply means (not shown) for supplying opposing packaging materials 30 to the outer surface of the discharge nozzle 10, and a sealing means for sealing the packaging material 30 (FIG. Not shown). The sealing means forms a seal portion (horizontal seal portion) in a direction intersecting the longitudinal direction of the packaging material 30 (between the sealing portion 31 and the folded portion 32 in FIG. 1), and along the longitudinal direction of the packaging material 30 By forming the above-described lateral seal portion, a storage chamber for storing the discharge (content) is formed. A seal roll, a seal bar, etc. are mentioned as a seal means which forms a transverse seal part. The packaging apparatus can be equipped with cutting means such as a cutter to cut the transverse seal so that one packaging bag has one or a predetermined number of storage chambers.

  Although the packaging material 30 of the example of illustration has the seal part 31 and the folding part 32 in the both sides of the direction which intersects a longitudinal direction, respectively, these are not essential. The packaging material may have longitudinal seals on both sides, and the packaging material may have folds on both sides. When the packaging material 30 is supplied, uniform packaging materials (films, tubes, etc.) may be used, in which the wall surfaces 30a and 30b are not divided. The wall surfaces 30a and 30b may be divided when supplied to the packaging device.

  The package of the present embodiment is manufactured by supplying a discharge (content) to the internal space 33 of the packaging material 30 by the dispensing nozzle 10 and sealing the packaging material 30 by the sealing means. As a packaging bag manufactured from the packaging material 30, a three-way seal bag, a four-way seal bag, a pillow bag, a flat bag etc. are mentioned. The contents are contained (filled) in the packaging bag.

  The packaging material is not particularly limited, but a laminate having a sealant on at least one side, or a monolayer film of a sealant is preferable. As a specific example, a polyolefin resin layer such as polyethylene (PE), polypropylene (PP), ethylene-vinyl acetate copolymer (EVA), cyclic polyolefin, etc. is used as the innermost layer (sealant), and biaxially stretched nylon film or biaxially stretched A stretched film such as a polyethylene terephthalate film or a biaxially oriented polypropylene film is used as a substrate, and an ethylene-vinyl alcohol copolymer, a deposited layer of metal or inorganic compound (aluminum deposition etc.), metal foil such as aluminum foil, if necessary The laminated film which made printing layers, such as an ink layer, etc. an intermediate | middle layer is mentioned.

Although the contents are not particularly limited, the present invention is applicable to various fluids such as liquid, viscous material, cream, powder, and mixtures. In particular, it is suitable to be applied to contents which are high in viscosity and hard to break even if the distance between two points increases after adhering between any two points, and which are easy to string. In addition, since the contents do not easily adhere to the seal portion, it is preferable to apply to contents including a component such as a surfactant, a mold release agent, and the like, which easily weakens the seal between the packaging materials. The viscosity of the content may be about the same as the viscosity of water (about 1 mPa · s), but is particularly suitable for high viscosity, for example, about 10 ³ to 10 ⁸ mPa · s, and further 10 ⁴ to 10 ⁶ mPa · s can be mentioned.

Although the present invention has been described above based on the preferred embodiments, the present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the scope of the present invention.
In the above-mentioned embodiment, although the discharge direction from a discharge nozzle was made into two directions which mutually oppose within a cross section, it is also possible to make this into one direction or three or more directions. Also in the case of three or more directions, by limiting the angular range in which the discharge direction is distributed around the nozzle, it is possible to suppress the discharge material from adhering to the nozzle and the packaging material in the vicinity of the discharge port.
In the above embodiment, the valve body is provided on the shaft provided in the flow passage of the outer cylinder, but the valve body is supported and displaced between the inner surface and the outer surface of the outer cylinder or outside the outer cylinder. It is also possible to provide a mechanism.

  Further, an inner cylinder surrounding the flow path of the discharge is provided inside the outer cylinder, the inner cylinder can be displaced in the longitudinal direction with respect to the outer cylinder, and the tip of the flow passage is closed by the inner cylinder. It is also possible to replace the shaft and the valve body by providing an opening or the like that regulates the discharge direction on the side surface on the distal end side. In this case, it can be said that the inner cylinder has the function of the shaft and the valve body, the flow path of the discharge is provided inside the shaft, and the outer cylinder surrounds the flow path of the discharge via the inner cylinder.

A, B: discharge direction, 10: discharge nozzle, 11: outer cylinder, 11a: inner surface, 11b: outer surface, 12: valve body, 12a: closing body, 12b: partition portion, 13: shaft, 14: flow path, 15 ... discharge port, 15a ... rim, 20 ... degassing device, 21, 22 ... degassing roller, 30 ... packaging material, 30a, 30b ... wall surface, 30S ... cross sectional shape, 31 ... seal portion, 32 ... folded portion, 33 ... Internal space.

Claims (3)

A packaging apparatus comprising: a discharge nozzle; packaging material supply means for supplying opposing packaging materials to an outer surface of the discharge nozzle; and sealing means for sealing the packaging material,
The discharge nozzle includes an outer cylinder surrounding a flow path of the discharge, a shaft provided inside the outer cylinder, and a valve element provided on the shaft.
The valve body closes the flow path by closing a discharge port provided at the tip of the outer cylinder, and when opening the flow path, in a plane orthogonal to the longitudinal direction of the outer cylinder Restricting the direction in which the discharge material is discharged from the discharge port in two opposing directions ;
The packaging material is disposed along the two opposing directions in a plane perpendicular to the longitudinal direction of the outer cylinder.
A packaging apparatus characterized in that a degassing roller, which is disposed along the two opposing directions and supports the packaging material from the outside, is provided on the tip side of the discharge nozzle . The valve body is an inner surface of the outer cylinder in two directions perpendicular to the two opposing directions in a plane perpendicular to the longitudinal direction of the outer cylinder even when the valve body opens the flow passage. The packaging apparatus according to claim 1, wherein the packaging apparatus according to claim 1, wherein the packaging apparatus is in contact with a peripheral edge of the discharge port to restrict the flow path in the two vertical directions. A manufacturing method of a package which supplies the discharge thing to the packing material by the discharge nozzle using the packing device according to claim 1 or 2 , and seals the packing material by the sealing means.

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