JP6601015B2 - Packaging equipment - Google Patents

Description

  The present invention relates to a packaging device that forms a box by packaging products by sequentially folding packaging materials, that is, a wrap round caser.

  Provided on the bottom surface, the front and back side surfaces that are continuous to the front and back and bent at right angles to the bottom surface, the upper surface that continues to one of these side surfaces (front side surface), and the bottom surface, both side surfaces, and each side of the top surface A packaging material having a flap that is bent at a right angle toward the inner side of the box to be molded, and a glued flap that is provided continuously at the tip of the upper surface and that is bent and bonded to the side wall to seal the box Conventionally, a packaging device (wrap round caser) that wraps and wraps an article placed on a bottom surface while forming a box by sequentially bending the box is known (see, for example, Patent Document 1).

  The wrap round caser as described above is usually configured such that the upper surface and each flap are bent along the shape of the article placed on the bottom surface, and the shape of the article to be packaged is a rectangular parallelepiped, a cube, a cylinder or the like. The upper and lower surfaces and the upright surface have a right-angled corner (see FIG. 12 of Patent Document 1).

Japanese Patent Laid-Open No. 11-105812

  In the wrap round caser described in Patent Document 1, when the shape of the product to be packaged has a right-angled corner, the upper surface and the flap can be bent accurately, but the article has a right-angled corner. For example, in the case of a truncated cone shape (a shape obtained by inverting the truncated cone) such as cup noodles, the box is formed with the side surface of the packaging material inclined rather than perpendicular to the bottom surface. In some cases, the box body may be formed with insufficient adhesion of the glued flap. Also, if a part of the product is missing for some reason in the previous process or if the product is in an empty box state where the product is not supplied, the box cannot be formed and the machine must be stopped to operate. It was the cause that the rate fell.

The present invention includes a main body portion having a top surface, a bottom surface, and side surfaces connected to the top surface and the bottom surface, inner flaps provided on both sides of each side surface, and both sides of the top surface and bottom surface, respectively. In a packaging apparatus for packaging an article to be packaged with a packaging material formed by having an outer flap provided and a sealing flap provided continuously on the upper surface, a conveying means for conveying the packaging material; The end portion of the inner flap that is provided on the side of the conveying means and is movable in the same direction as the conveying direction of the conveying means and is folded inward of the packaging material when the upper surface of the packaging material is folded And a contact means for maintaining the posture of the packaging material by moving at the same transport speed as the transport means.

  According to a second aspect of the present invention, in the first aspect of the present invention, the abutment means is capable of changing a moving speed, a position where it abuts on an inner flap end in the front of the transport direction, and an inner flap end on the rear of the transport direction It moves to the position which contact | abuts to a part, It is characterized by the above-mentioned.

  In the packaging device of the present invention, cup noodles are provided on both sides of the conveying means with contact means for maintaining the posture of the packaging material by contacting the end of the inner flap bent inward of the packaging material. Even when products with such deformations are packaged, the occurrence of poorly molded boxes can be reduced. Further, even when the number of products to be packaged is insufficient, the box can be formed, so that the line is not stopped and the operating rate can be prevented from being lowered.

FIGS. 1A and 1B are plan views, FIG. 1A shows a state in which the side belt contact means is in contact with the front inner flap, and FIG. 1B shows the side belt contact means in the rear side. The state which contact | abutted to the inner flap is shown. Example 1 2 (a), 2 (b), and 2 (c) are side views, and sequentially illustrate the operation of the packaging device. 3 (a), 3 (b), and 3 (c) are diagrams sequentially showing the operation of the packaging apparatus, and show the steps following FIG.

  A main body composed of a bottom surface on which an article is placed, a side surface provided before and after the bottom surface in the transport direction, and a top surface (lid) continuous to the front side surface in the transport direction, and both sides are provided on both sides in the transport direction. A plurality of aligned articles are wrapped and packaged by a sheet-like wrapping material having a flap, outer flaps provided on both sides of the bottom and top surfaces in the conveying direction, and a glued flap provided at the top of the top surface. This is a packaging device (wrap round caser) for sealing. In this packaging device, it is possible to bend each surface accurately at a right angle even with a deformed article having no right-angled corners such as cup noodles.

  Articles aligned on the bottom surface of the sheet-like packaging material taken out from a magazine or the like with the rear side surface connected to the bottom surface, the front side surface and the top surface folded at right angles to the bottom surface, respectively. Put on. While the packaging material and article are being conveyed by the conveyor, inner flaps provided on both sides of the front side surface are bent backward in the conveying direction by a fixed guide, and subsequently provided on both sides of the rear side surface. The inner flap is bent forward by the side tacker in the conveying direction.

  A folding guide for folding the upper surface of the packaging material to the rear side in the conveying direction (the upper side of the article placed on the bottom surface) is provided above the conveyor, and the upper surface is perpendicular to the front side surface by the folding guide. Bend it. Inner flap supports having a pair of engaging members attached to a belt are arranged on both sides of a conveyor for conveying a packaging material. The length of the front side inner flap provided on the front side surface and the rear side inner flap provided on the rear side surface is shorter than one half of the length of the bottom surface (length before and after in the transport direction), In a state where the front and rear inner flaps are folded, a certain distance is opened between the rear end surface of the front inner flap and the front end surface of the rear inner flap. The set of engaging members is provided at an interval shorter than the interval between the front and rear inner flaps. The belts on both sides can be changed in speed, and the front side engaging member is engaged with the rear end surface of the front side inner flap, and then the speed is decreased to reduce the rear side. Can be engaged with the front end surface of the rear side inner flap, and vice versa.

  Hereinafter, the present invention will be described with reference to embodiments shown in the drawings. The packaging apparatus according to this embodiment forms and packs a box while packaging a plurality of articles 6 by sequentially bending the packaging material 4 conveyed on the conveyor 2. The packaging material 4 is in the form of a flat sheet when supplied, and includes a bottom surface 4a on which a plurality of aligned articles 6 are placed, and a side surface 4b (hereinafter referred to as a front side surface) continuous to the front side of the bottom surface 4a in the conveying direction. The upper surface 4c continuous with the bottom surface 4a of the front side surface 4b, the sealing flap 4d continuously provided at the tip of the upper surface 4c, and the conveying direction of the bottom surface 4a Conveyance of side surfaces 4e (hereinafter referred to as rear side surfaces) continuous to the rear side, inner flaps 4f and 4g provided on both sides in the conveyance direction of the front side surface 4b and the rear side surface 4e, and the bottom surface 4a and the upper surface 4c, respectively. It has outer flaps 4h and 4i provided on both sides in the direction. The bottom surface 4a, the front and back side surfaces 4b and 4e, and the top surface 4c are used to wrap (wrap) the article 6 up and down and front and back, and this portion will be referred to as a main body portion.

  In the packaging device according to this embodiment, the upper and lower surfaces and the side surfaces (vertical surfaces) of a cube, a rectangular parallelepiped, a cylindrical body, etc., in which the article 6 to be packaged is wrapped by a normal wrap round caser are perpendicular to each other. For example, the present invention can be applied to a deformed article 6 having a truncated cone shape or the like upside down, such as a cup noodle container. Further, even if the present invention is applied when the number of articles 6 to be packaged is insufficient, each surface (for example, the upper surface 4c and the glued flap 4d) of the packaging material 4 can be accurately folded, and can be reliably glued. It is possible to do.

  The sheet-like wrapping material 4 is placed in a state where a plurality of (12 × 3 × 4) articles 6 are arranged on the bottom surface 4a, and the rear side surface 4e is perpendicular to the bottom surface 4a. In addition to being bent, the front side surface 4b is bent at a right angle to the bottom surface 4a, and the front side surface 4b, the upper surface 4c thereon and the glued flap 4d are supplied up to the sealing position shown in FIG. The Inner flaps 4f and 4g provided on both sides in the transport direction of the front side surface 4b and the rear side surface 4e of the wrapping material 4 are on the same plane as the side surfaces 4b and 4e (in a state perpendicular to the bottom surface 4a). It is growing.

  As described above, the inner flaps 4f on the front side surface 4b are disposed rearward in the conveyance direction 2 on both sides of the conveyance conveyor 2 that conveys the packaging material 4 with the front and rear side surfaces 4b and 4e placed upright on the bottom surface 4a. A fixed guide 8 that bends to the side is arranged. These fixed guides 8 are arranged at substantially the same interval as the width (the length in the direction orthogonal to the transport direction) of the main body (bottom surface 4a, front and rear side surfaces 4b, 4e, and top surface 4c) of the packaging material 4. The upstream tip side is expanded outward. The upstream side of both the fixed guides 8 is referred to as an expanded portion 8a, and the downstream side is referred to as a parallel portion 8b.

  Further, side tackers 10 (see FIG. 2) for bending the inner flap 4g of the rear side surface 4e forward in the conveying direction are arranged on both sides of the fixed guide 8 in the vicinity of the expanded portion 8a. These two side tuckers 10 turn from the outer side of the conveyor 2 to the inside with the end 10a on the downstream side in the conveying direction as a fulcrum, and swing on the opposite side (upstream side in the conveying direction). The inner flap 4g of the rear side surface 4e is struck from the rear side in the transport direction toward the front side by a folding claw (not shown) provided at the moving end 10b, and is bent at a right angle above the bottom surface 4a. The inner flap 4g of the bent rear side surface 4e immediately enters and is held between the parallel portions 8b of the fixed guide 8. The inner flaps 4f and 4g provided on the front and rear side surfaces 4b and 4e have a short length (length before and after the conveying direction in the folded state) and are folded in each drawing. As shown in the drawing, a constant gap is opened between the front end surface 4ga of the rear side inner flap 4g and the rear end surface 4fa of the front side inner flap 4f. However, it goes without saying that this interval is not limited to the illustrated size.

  Above the conveying conveyor 2 on the downstream side in the conveying direction with respect to the fixed guide 8, the upper surface 4c of the packaging material 4 is perpendicular to the front side surface 4b toward the rear side (upstream side in the conveying direction). An upper surface folding guide 12 for folding is arranged. The upper surface folding guide 12 includes an upper upright portion 12a, a curved bent portion 12b that abuts on the front side of the upper surface 4c that is conveyed upright, and a lower horizontal portion 12c. The horizontal portion 12c is disposed at a position where the contact surface (lower surface) that contacts the upper surface 4c of the packaging material 4 is slightly higher than the height of the front and rear side surfaces 4b, 4e.

  An upper surface pressing device 14 for pressing the upper surface 4c side of the packaging material 4 in which the upper surface 4c is folded by the folding guide 12 is arranged from the vicinity of the downstream end of the horizontal portion 12c of the upper surface folding guide 12 toward the downstream side in the transport direction. The upper surface pressing device 14 includes a set of four pressing members 20a, 20b, and 20c attached to a chain 18 that is looped around an upstream sprocket 16, a downstream sprocket, and an upper sprocket (all not shown). , 20d are provided at equal intervals. Each set of pressing members 20a, 20b, 20c, and 20d includes a front positioning member 20a disposed on the front side, an upper surface pressing member 20b disposed slightly rearward thereof, and a rear pressing member 20c disposed on the rear side. The crimping member 20d is provided integrally with the rear pressing member 20c and can turn the tip crimping portion 20da facing downward toward the downstream side in the transport direction. Each set of pressing members 20 a, 20 b, 20 c, and 20 d travels in the horizontal direction at the same speed as the packaging material 4 above the packaging material 4 that is folded into a box shape as the chain 18 travels.

  The front positioning member 20 a has an engaging surface on the rear surface side of the lower portion, and performs positioning by applying this engaging surface to the front surface of the front side surface 4 b of the packaging material 4. The next upper surface pressing member 20b is bent in a state where the lower end surface thereof is in contact with the upper surface 4c of the packaging material 4 at a position slightly lower than the lower surface of the horizontal portion 12c of the folding guide 12 and is slightly inclined by the folding guide 12. The upper surface 4c that has been formed is bent at a right angle to the front side surface 4b. Further, the rear pressing member 20c behind the pressing member is substantially the same height as the upper pressing member 20b, and presses the rear side of the upper surface 4c in the transport direction. The crimping member 20d attached to the chain 18 integrally with the rear pressing member 20c has a substantially bent shape, and the tip crimping portion 20da rotates around the upstream sprocket 16. When the horizontal traveling portion is reached, the glued flap 4d continuously attached to the tip of the upper surface 4c is bent at a right angle with respect to the upper surface 4c and pressed against the upper end of the rear side surface 4e. Crimping is performed using glue (not shown, but glued at a slightly upstream position where it is bent and crimped).

  Folding guides 36 for the outer flaps 4h and 4i are provided on the upper and lower sides of the conveying conveyor 2 on the downstream side of the position where the glued flap 4d is crimped, and the outer flaps are provided on both sides of the bottom surface 4a in the conveying direction. The outer flaps 4i provided on both sides of the upper surface 4c in the conveying direction are bent downwards with 4h facing upward. By folding these outer flaps 4h and 4i from the outer sides of the inner flaps 4f and 4g and bonding them, the packaging material 4 containing the article 6 is completed as a box.

  Inner flap supports 22 are disposed on both sides of the conveyor 2 for transporting the packaging material 4 on which the articles 6 are placed, and are in contact with and supported by the end faces 4fa and 4ga of the folded inner flaps 4f and 4g of the packaging material 4, respectively. Yes. The inner flap support 22 is attached to a pair of belts 30, 30 wound around an upstream wheel 24, a downstream wheel 26, and an outer wheel 28 disposed on both sides of the conveyor 2, and both the belts 30, 30. A set of two contact means (contact members) 32 and 34 are provided. The contact members 32 and 34 of each set are attached at the same interval as the interval of the packaging material 4 conveyed by the conveyance conveyor 2. Further, the two abutting members 32 and 34 of each set are narrower than the distance between the rear end surface 4fa of the inner flap 4f on the front side surface 4b of the packaging material 4 and the front end surface 4ga of the inner flap 4g on the rear side surface 4e. Installed at intervals.

  The pair of belts 30 and 30 to which the contact members 32 and 34 are attached can change the traveling speed, and when the upper surface 4c of the packaging material 4 is bent, the contact member 32 on the front side in the transport direction. Is engaged with the rear end surface 4fa of the inner flap 4f of the front side surface 4b and travels at the same speed as the transport speed of the transport conveyor 2 (the state shown in FIG. 1A), and is provided at the tip of the upper surface 4c. When the glued flap 4d is bent and bonded to the rear side surface 4e, the moving speed of the belts 30 and 30 is lowered, and the contact member 34 is engaged with the front end surface 4ga of the inner flap 4g on the rear side surface 4e. Then, it is made to run at the same speed as the transport speed of the transport conveyor 2 (state shown in FIG. 1B).

  The operation of the packaging device according to the above configuration will be described. A packaging material 4 taken out from an upstream magazine or the like (not shown) and bent in a state in which the front side surface 4b and the upper surface 4c and the rear side surface 4e are upright with respect to the bottom surface 4a is formed on the bottom surface 4a. A predetermined number of aligned articles 6 are carried to the packing position shown in the drawing. First, the front side surface 4 b enters between the fixed guides 8 arranged on both sides of the conveyor 2. Both inner flaps 4f of the front side surface 4b abut against the widened portion 8a of the fixed guide 8 and are bent toward the rear side in the conveying direction, sandwiched between the parallel portions 8b on both sides and bent at right angles to the front side surface 4b. . Subsequently, by turning the side tuckers 10 on both sides, the inner flaps 4g on both sides of the rear side surface 4e are bent toward the front side in the transport direction (see the leftmost packaging material 4 in FIG. 2A). . After that, the bent rear inner flap 4g is sandwiched between the parallel portions 8b of the fixed guide 8 and transported while being held at a right angle like the front inner flap 4f (FIGS. 2B and 2C). (See the leftmost packaging material 4)).

  The wrapping material 4 in which the front and rear inner flaps 4f and 4g are folded toward the rear side in the transport direction and the front side in the transport direction, respectively, gradually approaches the folding guide 12 that bends the upper surface 4c (FIGS. 2C and 3A). (See the leftmost packaging material 4). The upstream end (upstream wheel 24) of the inner flap support 22 is positioned in the vicinity of the upright portion 12a of the folding guide 12, and immediately before the upper surface 4c of the packaging material 4 touches the upper surface folding guide 12 (FIG. 3A). The belt 30 that can change the speed is accelerated, the contact means (both engaging members) 32 and 34 start to move forward in the conveying direction, and the front side engagement is performed. The member 32 engages with the rear end surface 4fa of the front inner flap 4f, and the upper surface 4c of the packaging material 4 hits the upper surface folding guide 12, and is bent to the rear side in the conveying direction (that is, the upper side of the article 6) by the curved bending portion 12b. (See the leftmost packaging material 4 in FIGS. 3B and 3C). After the engagement member 32 on the front side is engaged with the rear end surface 4fa of the front inner flap 4f, the belt 30 moves forward at a constant speed with the conveyor 2.

  When the upper surface 4c of the wrapping material 4 is bent backward, the article 6 placed on the bottom face 4a is a deformed article such as a cup noodle with a truncated cone, for example. 6 may be displaced from each other and the front side surface 4b may be folded inward (a state where the front side surface 4b is broken by 90 degrees or more with respect to the bottom surface 4a). The inner flap 4f provided on the front side surface 4b Since it supports from the back side by the front side contact member 32, when bending the upper surface 4c, the front side surface 4b is not folded inward but is bent at a right angle to the bottom surface 4a.

  The upper surface 4c is gradually bent deeper by the upper surface folding guide 12 (see the packaging material 4 located in the center of FIGS. 2A to 3A), and the packaging material 4 folded to a position close to a substantially horizontal state is Then, it reaches below the upper surface pressing device 14 (see the packaging material 4 located in the center of FIG. 3B). In the upper surface pressing device 14, the upper end of the front surface (front side surface 4b) is first pressed by the front front positioning member 20a. Subsequently, the upper surface pressing member 20b and the rear pressing member 20c that have rotated around the upstream side sprocket 16 can hold the front end side and the rear end side of the upper surface 4c from above (see FIGS. 3 (b) and 3 (c)). (See packaging material 4 located in the center). Furthermore, the crimping member 20d that has moved together with the rear pressing member 20c is located above the glued flap 4d provided at the tip of the upper surface 4c (see the packaging material 4 located in the center of FIG. 3C). Thereafter, the crimping member 20d rotates forward in the conveying direction, and the tip crimping portion 20da bends the glued flap 4d and crimps it to the upper end of the rear side surface 4e (on the rightmost side in FIGS. 2A and 2B). (See packaging material 4).

  The belt 30 of the inner flap support 22 is decelerated when the pressure-bonding member 20d comes into contact with the glued flap 4d provided continuously at the tip of the upper surface 4c of the packaging material 4 or before and after the pair of engagements. The members 32 and 34 start moving relatively rearward, the front engagement member 32 engaged with the rear end surface 4fa of the front inner flap 4f is separated, and the rear engagement member 34 is rearward. Engage with the front end surface 4ga of the inner flap 4g (the packaging material 4 and the engaging member 34 located on the rightmost side in FIG. 2A are in the state shown in FIG. 2B). Even when the glued flap 4d provided at the tip of the upper surface 4c is bent and bonded to the upper end of the rear side surface 4e, the rear inner flap 4g is supported by the rear engaging member 34, so that the rear side The side surface 4e is not folded inward, and the glued flap 4d can be accurately folded and firmly adhered to the rear side surface 4e.

  After the glued flap 4d is bent and bonded to the rear side surface 4e, the packaging material 4 reaches the position of the outer flap folding guide 36, the outer flap 4i on the upper surface 4c is bent downward, and the bottom surface The outer flap 4h of 4a is bent upward (see the rightmost packaging material 4 in FIGS. 3A, 3B, and 3C) and bonded to the outer surface side of the front and rear inner flaps 4f, 4g. The packaging material 4 on which the article 6 is placed is completed as a box body in which the article 6 is packed. In the packaging apparatus according to this embodiment, engagement members 32 and 34 that can be engaged with the inner flaps 4f and 4g that are folded back and forth are provided on both sides of the conveyor 2 that conveys the packaging material 4, and each of these two is provided. Since the pair of engaging members 32 and 34 are sequentially engaged with the front and rear inner flaps 4f and 4g, even if the article 6 to be packaged is a deformed article or the number of articles 6 is insufficient. When the upper surface 4c of the packaging material 4 is folded or when the glued flap 4d provided at the tip of the upper surface 4c is folded and bonded, the side surfaces 4b and 4e can be supported and accurately folded, and the bonding is ensured. can do.

2 Conveying means (conveying conveyor)
4 Packaging material 4a Bottom surface of packaging material 4b Side surface of packaging material (front side surface)
4c Upper surface of packaging material 4d Sealing flap (glue flap)
4e Side surface of packaging material (rear side surface)
4f Inner flap on the front side surface 4g Inner flap on the rear side surface 4h Outer flap on the bottom surface 4i Outer flap on the upper surface 6 Package (article)
32 Contact means (engaging member)
34 Contact means (engaging member)

Claims (2)

A main body formed with an upper surface and a bottom surface and side surfaces connected to the upper surface and the bottom surface; inner flaps provided on both sides of each side surface; and outer portions provided on both sides of the upper surface and the bottom surface In a packaging device for packaging an article to be packaged with a packaging material formed with a flap and a sealing flap provided continuously on the upper surface,
A transporting means for transporting the packaging material; and provided on a side of the transporting means and movable in substantially the same direction as the transporting direction of the transporting means, and the inner side of the packaging material when the top surface of the packaging material is folded And a contact means for maintaining the posture of the packaging material by moving at the same transport speed as that of the transport means while contacting the end of the inner flap folded in the direction .   The abutting means is capable of changing a moving speed, and moves to a position where it abuts on an inner flap end at the front in the conveying direction and a position where it abuts on an inner flap end at the rear in the conveying direction. Item 4. The packaging device according to Item 1.

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