JP2023143130A - Wraparound caser - Google Patents

Abstract

To provide a wraparound caser that allows a wraparound sheet to be easily changed.SOLUTION: A wraparound caser body 300 includes a sheet folding part 310 for folding a wraparound sheet 2 and wrapping an article, and conveyance means for forwardly conveying the wraparound sheet 2 wrapped around an article, in a frame 301. In the sheet folding part 310, a bottom surface 21 of the wraparound sheet 2 and an article are placed, a lifting/lowering lift 320 for vertically moving the wraparound sheet 2 is provided, and folding guides 330 for folding the wraparound sheet 2 are provided on the left, right, front and back sides. The folding guides 330 to the left and right can perform bilaterally symmetrical adjustment in a lateral width, and the folding guide in the front is provided on a mover frame 302 capable of moving forward and rearward in the frame 301.SELECTED DRAWING: Figure 8

Description

Application for application of Article 30, Paragraph 2 of the Patent Act has been filed Sales date: January 5, 2020 Sales location: Fuji Corporation Co., Ltd. (52 Sosaku, Kido-cho, Anjo City, Aichi Prefecture)

The present invention relates to a wrap-round caser for wrapping a predetermined number of articles, such as containers, in a sheet.

Conventionally, for example, in Patent Document 1, articles such as containers accumulated in a predetermined number are placed on the bottom surface of a wrap-round sheet, and the front and rear flaps and side flaps provided on both sides of these flaps are folded. 2. Description of the Related Art Wrap-round casers are known for packaging articles by wrapping them. Furthermore, for example, in Patent Document 2, by adjusting the interval between the machine frames of the wrap-round caser, it is possible to adjust the interval between the wrap-round sheet conveyor and the rear side flap folding means, and the wrap-round sheet of various sizes can be adjusted. A wrap-round caser that can be used for both is known.

Japanese Patent Application Publication No. 2001-048123 JP2014-091532A

The conventional wrap-round caser described in Patent Document 2 can be used for wrap-round sheets of various sizes. However, in this wrap-round caser, when changing the wrap-round sheet according to the article to be wrapped, it is necessary to change the setting for the size of the wrap-round sheet for the folding means, and it is not possible to change the wrap-round sheet easily. The problem was that I couldn't do it.

The problem to be solved by the technology of this specification was made in view of the above-mentioned points, and aims to provide a wrap-around caser whose wrap-round sheet can be easily changed.

A wrap-round caser according to an embodiment of the present specification is a wrap-round caser that wraps an article with a wrap-round sheet, and includes:
The wrap-round seat has a top surface, a front flap, a bottom surface, a rear flap, and side flaps provided on both sides thereof in the front and rear direction,
The wrap-round caser includes a sheet folding part in which the wrap-round sheet is folded to wrap the article in a frame, and a package formed by the wrap-round sheet that wraps the article is folded forward from the sheet fold-in part. A conveyance means is provided for conveying the
The bottom surface and the article are placed on the sheet folding section, and an elevating lift for vertically moving the wrap-round sheet is provided,
The sheet folding section includes folding guides for folding the wrap-round sheet in the front, back, right and left directions,
The left and right folding guides are capable of adjusting the width of the left and right sides symmetrically with respect to a transport center plane in the front-rear, up-down direction passing through the left and right centers of the sheet folding section,
It is characterized in that the front folding guide is provided in a mobile frame that can be moved back and forth within the frame.

According to the wrap-round caser according to the embodiment of the present specification, the wrap-round sheet is folded by lowering the elevating platform of the elevating lift on which the bottom surface of the wrap-round sheet and the article are placed. The left and right folding guides are provided so that the lengths of the left and right sides can be adjusted symmetrically, and the front folding guide is provided on a mobile frame that is movable back and forth. Therefore, when changing the item to be wrapped or the type of wraparound sheet, all you need to do is adjust the left and right width of the folding guide and adjust the front and back position of the mobile frame where the front folding guide is installed. You can easily change the wrap round seat.

Here, in the wrap-round caser, a rear flap folding guide is provided on the rear side of the lifting lift, the folding guide in the vertical direction having an upper end bent rearward, the rear flap folding guide folding the rear flap of the wrap-round sheet upward. established,
A front flap folding guide, which is a vertically folding guide whose upper end is bent forward and which folds the front flap of the wrap-around sheet upward, is provided on the front side of the lift;
At the four diagonal corners of the lift, there are vertical folding guides whose upper ends are bent outward, and left and right folding guides are provided at the four diagonal corners of the lift to bend the left and right front side flaps and rear side flaps of the wrap-around seat inwardly in the front-rear direction. A front side flap folding guide and left and right rear side flap folding guides may be provided, respectively.

According to this, the front flap, the front side flap, the rear flap, and the rear side flap are folded inward by lowering the bottom surface of the wrap-round sheet and the platform of the elevator lift on which the article is placed. The front flap folding guide and the front side flap folding guide are provided so that they can be moved back and forth, and the left and right folding guides are provided so that the left and right lengths can be adjusted symmetrically, making it easy to change the wrap-around seat. be able to.

Further, in the wrap-round caser, a slide is provided on the lower side of the frame, on which the package in which the wrap-round sheet is folded slides forward;
The slide may be provided to be movable up and down.

According to this, the height of the package in which the wraparound sheet is folded can be adjusted simply by adjusting the vertical position of the slide, so that the wraparound sheet can be easily changed.

Further, in the wrap-around caser, a side flap gluing gun for gluing the front side flaps and the rear side flaps is provided on the rear side of the mobile frame, and a top surface side is provided on the front side of the side flap gluing gun. A top side flap folding guide and a bottom side flap folding guide are provided on the left and right sides to fold the flap and bottom side flap, respectively.
The top side flap folding guide is provided on the upper half side of the left and right side surfaces on which the package slides, so as to be narrowed from the left and right from the top and outside to the bottom and inside, toward the front,
The bottom side flap folding guide shall be provided on the lower half side of the left and right side surfaces on which the package slides, so as to be narrowed from the left and right, toward the front, from the bottom and outside to the top and inside. I can do it.

According to this method, glue is applied to the front side flaps and rear side flaps of the wrap round sheet, and then the top side flaps and bottom side flaps are folded. The flaps can be individually glued.

Further, in the wrap-around caser, a crimping part that presses the glued part glued by the glue gun and a stopper that suppresses the package from sliding forward are provided in the moving machine frame. is,
The stopper may be provided so as to be movable back and forth in conjunction with the back and forth movement of the mobile frame with respect to the frame.

According to this, it is possible to press the glued portion with the crimping part, and the length of the package in the front and back direction within the crimping part can be adjusted by moving the stopper back and forth.

Further, in the wrap-around caser, the vertical height of the top surface side of the wrap-round sheet 2 when the package is transported forward is fixed, and the vertical height of the top surface side of the wrap-round sheet 2 is fixed depending on the size of the package. It is possible to have a configuration in which the travel distance of the lift can be changed.

According to this, if the package is small, the travel distance of the lifting lift can be shortened, and the number of packages per unit time can be increased.

Further, in the wrap-around case, the travel distance of the conveyance means can be changed depending on the size of the package.

According to this, if the package is small, the travel distance of the conveyance means can be shortened, and the number of packages per unit time can be increased.

According to the wrap-round caser of the present invention, the wrap-round sheet can be easily changed.

FIG. 2 is a downstream front view of the wrap-around caser according to the embodiment of the present invention. It is a top view of the same wrap-round caser. It is a front view of the sheet feeding device of the same wrap-around caser. FIG. 3 is a side view of the same sheet supply device, showing a state in which a wrap-round sheet is supplied to a conveyance arm by a sheet elevating table. FIG. 3 is a side view of the same sheet supply device, showing a state in which the wrap-round sheet is supported by an auxiliary rail after the wrap-round sheet is sucked by a suction cup and raised. FIG. 2 is a side view of the same sheet feeding device, showing a state in which a wrap-round sheet is held on a support plate. FIG. 2 is a side view of the same sheet feeding device, showing a state in which a wrap-round sheet is held by a support plate and an auxiliary support plate. It is a top view of the wrap-round caser main body of the same wrap-round caser. FIG. 2 is a right side view of the wrap-around caser body. It is a perspective view of the sheet folding part of the wrap-round caser main body while the wrap-round sheet is being folded. It is a front view of the wrap-round caser main body. It is a top view of a wrap round sheet. It is a figure which shows the folding order of the same wrap-round sheet, (A) is a figure which shows the state where the front flap, the back flap, the front side flap, and the back side flap are folded, (B) (C) is a diagram showing a state in which the top side flaps and bottom side flaps are bent next to (B). It is a side view when the same wrap round sheet is pushed by a case pusher. FIG. 2 is a plan view of a wrap-around sheet (overbody flap). It is a figure which shows the folding order of the same wrap round sheet (overbody flap), (A) is a figure which shows the state in which the front flap, the rear flap, the front side flap, and the rear side flap are folded, (B) is a diagram showing a state in which the top side flaps are bent next to (A), and (C) is a diagram showing a state in which the top side flaps and bottom side flaps are bent next to (B). It is a diagram. It is a side view when the same wrap round sheet (overbody flap) is pushed by a case pusher.

Embodiments of the present invention will be described below based on the drawings. However, the present invention is not limited to these embodiments. 1 to 11 show a wrap-around case 1 according to an embodiment for wrapping a predetermined number of containers BOT containing drinks with a wrap-around sheet 2 (FIG. 12). The wrap-round caser 1 according to the embodiment includes a storage frame 100 that stacks and accommodates wrap-round sheets 2 before being used for packaging, and a wrap-round caser body 300 that wraps articles with the wrap-round sheets 2. , and a sheet supply device 200 that supplies the wraparound sheet 2 accommodated in the storage frame 100 to the wraparound caser main body 300. In this specification, the orientation of the wrap-round caser 1 is such that the downstream side in the transport direction of the wrap-round caser 1 is the front, and the upstream side is the rear, as shown in FIGS. 1 and 2. Up, down, left, and right are the top, bottom, left, and right when the wrap-round caser 1 is viewed from the front side, and are used in the illustration. F indicates front, B indicates rear, U indicates top, D indicates bottom, L indicates left, and R indicates right. . In addition, from the conveyance direction of the wrap-around caser 1, the front is sometimes expressed as the downstream side, and the back is sometimes expressed as the upstream side. Moreover, as shown in FIG. 12, the orientation of the wrap-round sheet 2 is such that the downstream side in the conveying direction of the wrap-round sheet 2 is the front, and the upstream side is the rear. The left and right are the left and right when the wrap round sheet 2 is viewed from the front side. Furthermore, it may be expressed as inside or outside based on the packaging body 3 (FIG. 13(C)) formed by folding the wrap round sheet 2 when packaging the container BOT.

As shown in FIG. 10, the wrap-round caser 1 is a device that packs a predetermined number of containers BOT containing beverages as articles with a wrap-round sheet 2. As shown in FIG. 12, the wrap-around seat 2 has a top surface 23, a front flap 25, a bottom surface 21, a rear flap 27, and a fold-in flap 29 from the front to the rear. It has front side flaps 26 on the left and right sides of the side flaps 24 and front flaps 25, bottom side flaps 22 on the left and right sides of the bottom surface 21, and rear side flaps 28 on the left and right sides of the rear flaps 27. As shown in FIG. 13, an article (not shown) placed on the bottom surface 21 by the wrap-around caser 1 is moved forward and backward by the top surface 23, the front flap 25, the bottom surface 21, the rear flap 27, and the folding flap 29. The left and right sides are closed by the front side flaps 26, rear side flaps 28, top side flaps 24, and bottom side flaps 22, and the package is packed.

As shown in FIGS. 2, 8, and 9, the wrap-round caser main body 300 has a wrap-round sheet 2 folded on the rear side, which is the upstream side, to package the container BOT (FIG. 10), which is an object to be accommodated. A sheet folding section 310 is provided. A side flap gluing gun 340 for gluing the front side flaps 26 and rear side flaps 28 of the wrap-around sheet 2 is provided on the front side, which is the downstream side of the sheet folding section 310. , a top side flap folding guide 336 and a bottom side flap folding guide 337 are provided for folding the top side flap 24 and the bottom side flap 22, respectively. In addition to the gluing gun, a top gluing gun 260 for gluing the top surface 23 of the wrap-around sheet 2 is provided in the sheet feeding device 200, which will be described in detail later. A mobile frame 302 that is movable back and forth with respect to a frame 301 serving as a framework of the wrap-around caser main body 300 is provided on the front side, which is the downstream side, of the wrap-around caser main body 300. As will be described in detail later, the size of the sheet folding section 310 is adjusted in response to a change in the size of the wrap-around sheet 2 by moving the mobile frame 302. A crimping section 360 is provided in the mobile frame 302 to press the glued portion of the wrap-around sheet 2 that wraps the container BOT.

As shown in FIGS. 9 and 10, the bottom surface 21 of the wrap-round sheet 2 is placed on the sheet folding part 310, and the container BOT which is the object to be stored is placed on the sheet folding part 310. An elevating lift 320 that ascends and descends is installed. The elevating lift 320 is configured such that a ball screw shaft passes through a screw hole (not shown) cut in the vertical direction of the elevating lift 320, and the elevating lift 320 is moved up and down by rotating the ball screw shaft with a stepping motor. ing. Further, as shown in FIGS. 2 and 8, the elevating lift 320 is composed of two left and right flat plates, and is configured so that the distance between the left and right sides can be adjusted symmetrically.

As shown in FIGS. 2 and 8 to 10, a folding guide 330 is installed outside the position where the package 3 formed by folding the wrap-round sheet 2 is arranged, and the folding guide 330 can be moved up and down. By lowering the lift 320, the wrap round sheet 2 is folded and the container BOT is wrapped with the wrap round sheet 2. As shown in FIG. 10, the container BOT, which is the object to be stored, is stacked in a predetermined number by the container supply device 5 and placed on the upper side (inside) of the bottom surface 21 of the wrap round sheet 2 placed on the lifting lift 320. be done.

As shown in FIGS. 2 and 8 to 10, the folding guide 330 includes a front flap folding guide 331 and a rear flap folding guide 331 before and after the position where the package 3 formed by folding the wrap round sheet 2 is placed. A folding guide 332 is provided, and a front side flap folding guide 333 and a rear side flap folding guide 334 are provided on the left and right sides, respectively, on the outside in contact with the four corners of the position where the package 3 is arranged.

The front flap folding guide 331 is installed so as to be in contact with the front side of the position where the package 3 is arranged, is made of metal, has a bar shape extending in the vertical direction, and has an upper end bent forward. In the embodiment, the front flap folding guide 331 is made of a substantially U-shaped metal bar whose upper and lower ends are bent horizontally toward the downstream side, and a circular arc at the upper end to gently bend the front flap 25. and a substantially semicircular interference plate 331a. The interference plate 331a is made of PTFE (tetrafluorocarbon resin), which has low sliding resistance against the wraparound sheet 2.

The rear flap folding guide 332 is installed so as to be in contact with the rear side of the position where the package 3 is placed, is made of metal, has a bar shape extending in the vertical direction, and has an upper end bent to the rear side. The rear flap folding guide 332 has a fixed position in the front-rear direction with respect to the sheet folding part 310.

The front flap folding guide 331 and the rear flap folding guide 332 move the bottom surface 21 of the wrap round sheet 2 by lowering the lifting lift 320 that supports the bottom surface 21 while the bottom surface 21 of the wrap round sheet 2 is pressed down from above by the container BOT which is the object to be accommodated. The front flap 25 and rear flap 27 are each folded upward.

The front side flap folding guide 333 and the rear side flap folding guide 334 are arranged on the outside in contact with the four corners of the position where the package 3 is arranged, are made of metal, have a bar shape extending in the vertical direction, and have an upper end bent outward. It is a fold-out guide. In the embodiment, the front side flap folding guide 333 is a bar-shaped metal extending downward from the upper end, and the downwardly extending end is connected to the width adjustment frame 303 described later. The front side flap folding guide 333 and the rear side flap folding guide 334 are, as shown in FIG. 10, a lifting lift 320 that supports the bottom face 21 of the wrap round sheet 2 while being pressed from above by the container BOT which is the object to be stored. By lowering, the left and right front side flaps 26 are bent rearward to the inside of the front flap 25, and the rear side flaps 28 are bent forward to the inside of the rear flap 27.

As the elevating lift 320 is lowered, the wrap-around seat 2 is folded, as shown in FIG. , is bent substantially perpendicularly to the bottom surface 21. In addition, the left and right front side flaps 26 are placed on the inside of the front flap 25 by the front side flap folding guide 333, and the rear side flaps 28 are placed on the inside of the rear flap 27 with the rear side flap folding guide 334. Each can be folded forward.

As shown in FIGS. 9 and 10, on both left and right sides of the lifting lift 320, temporary holding plates 338, which are flat plates extending in the front-rear, up-down direction, and whose upper sides are bent outward in the left-right direction, are installed to match the left-right width of the package 3. Each is provided. When the wrap round sheet 2 for packing the container BOT passes between the left and right temporary holding plates 338 due to the lowering of the lifting lift 320, the temporary holding plate 338 bends the bottom side flaps 22 upward and packs the container BOT. Correct the left and right misalignment of the wrap round sheet 2 (packed body 3).

As shown in FIGS. 9 and 10, a gap 338a is provided below the temporary holding plate 338, through which the bottom side flap 22 of the wrap-around sheet 2 projects outward. The bottom side flaps 22 of the wrap-around sheet 2 are once bent upward by the temporary holding plate 338, but the bottom side flaps 22 protrude outward from the gap 338a and are unbent. As a result, the front side flaps 26 and the rear side flaps 28 that were covered by the bottom side flaps 22 are exposed, and the front side flaps 26 and the rear side flaps 28 are exposed using a side flap glue gun 340, which will be described later. is glued on.

The front flap folding guide 331, the front side flap folding guide 333, and the temporary holding plate 338 are provided so as to be movable in the front-rear direction with respect to the sheet folding portion 310, and are provided so as to be able to adjust the left and right widths symmetrically. . Specifically, as shown in FIG. 2 or FIG. 8, a left and right screw is cut into a right-hand screw and a left-hand screw on the left and right sides of a mobile frame 302 that is movable back and forth with respect to the wrap-around caser main body 300. A ball screw shaft 372 is provided in the left and right direction, and the left and right ball screw shafts 372 are passed through the screw holes cut in the left and right direction of the width adjustment frame 303 that are paired on the left and right, respectively, and the left and right ball screw shafts 372 are connected thereto. By rotating the folded portion width adjustment handle 383, the left and right pairs of width adjustment frames 303 are provided so as to be symmetrically movable left and right. The forward and backward movement of the mobile frame 302 is achieved by passing forward and backward ball screw shafts 375 and 376 (FIG. 11) into left and right screw holes (not shown) cut in the forward and backward direction of the mobile frame 302, respectively. The moving machine frame 302 is configured to move back and forth by rotating the shafts 375 and 376 using a longitudinal length adjustment handle 386. The ball screw shaft 375 and the ball screw shaft 376 are configured to interlock with each other by an interlocking chain 379, as shown in FIG. The front flap folding guide 331, the front side flap folding guide 333, and the temporary holding plate 338 are connected to this width adjustment frame 303, and are movable in the front and back direction with respect to the sheet folding part 310, and can adjust the left and right widths symmetrically. possible.

The left and right distances between the rear flap folding guide 332, the rear side flap folding guide 334, and the vertical lift 320 are determined by the left and right ball screw shafts 371 provided at the rear of the wrap-around caser body 300, as shown in FIGS. 2 and 8. , are provided symmetrically so that the left and right spacing can be adjusted. In each of the left and right pairs of the rear flap folding guide 332, the rear side flap folding guide 334, and the lifting lift 320, the left and right ball screw shafts 371 pass through screw holes (not shown) cut in the left and right direction, and the left and right ball screw shafts 371 are inserted into the left and right ball screw shafts 371. It is provided so that it can be moved symmetrically by rotating it with an elevation lift width adjustment handle 380 connected to.

The front flap folding guide 331, the front side flap folding guide 333, and the temporary holding plate 338 are moved in the front-back direction by operating a longitudinal length adjustment handle 386 that moves the moving machine frame 302 back and forth, and are mounted on the moving machine frame 302. By operating the folding portion width adjustment handle 383 that rotates the left and right ball screw shafts 372, it can be moved left and right symmetrically. The rear flap folding guide 332, the rear side flap folding guide 334, and the lift 320 can be symmetrically adjusted in width from side to side by rotating the lift width adjustment handle 380 connected to the left and right ball screw shafts 371. .

A front flap folding guide 331, a front side flap folding guide 333, and a temporary holding plate 338 are provided so as to be movable in the front and rear directions with respect to the seat folding part 310, and to be able to adjust the left and right widths symmetrically. A flap folding guide 332, a rear side flap folding guide 334, and a lifting lift 320 are provided symmetrically so that their widths can be adjusted in the left and right directions. Therefore, the sheet folding section 310 can change the size of the wrap-round sheet 2 of various sizes, and can be used for both the wrap-round sheet 2. In addition, since the left and right pairs of all the folding guides 330 and the temporary holding plates 338 are symmetrically provided so that the lengths in the left and right directions can be adjusted, the size of the wrap-around sheet 2 can be easily changed. It is possible to do this.

These adjustment handles (adjustment handles 380, 381, 382, 383, 385, 386, 141, 142, 143, 144) are provided with position indicators (not shown) that display position indicators. By using a position indicator to record a position index for each wrap round sheet 2 of different size and reproducing the position index when the same wrap round sheet 2 is used again, the size can be easily changed.

As shown in FIGS. 8 and 9, from the upstream to the downstream of the wrap-around caser main body 300, the package 3 made of the wrap-round sheet 2 containing the container BOT packed in the sheet folding section 310 is transferred to the downstream crimping section 360. A case pusher 351 is provided as a conveying means. On the lower side of the wrap-around caser body 300, there are two left and right slides 307 on which the bottom surface 21 of the package 3 transported by the case pusher 351 slides, from the upstream sheet folding section 310 to the downstream crimp section 360. It is set towards. The slide 307 is provided to be movable up and down according to the height of the package 3, and a ball screw shaft passes through a screw hole (not shown) cut in the vertical direction of the slide 307, and the ball screw shaft is inserted into the screw hole (not shown) cut in the vertical direction. It is provided so that it can be moved up and down by rotating it with a slide height adjustment handle 381 connected to the slide.

The case pusher 351 is controlled by a stepping motor to push the package 3 of the wrap-round sheet 2 in which the container BOT is packed in the sheet folding section 310 from the rear to the front, and transports it to the downstream crimping section 360. When the case pusher 351 comes into contact with the package 3 of the wrap-round sheet 2, the tip 351a pushes the fold-in flap 29 of the wrap-round sheet 2 and bends the fold-in flap 29 forward, as shown in FIG.

The package 3 made of the wraparound sheet 2 is pushed downstream by the case pusher 351, and the top surface 23 of the wraparound sheet 2 comes into contact with the lower end 331b (FIGS. 9 and 10) of the front flap folding guide 331, and the package 3 is pushed downstream by the case pusher 351. Surface 23 is bent backwards. After the folding flap 29 is folded forward, the top surface 23 is folded backward, so that the rear end of the top surface 23 overlaps the folding flap 29, as shown in FIG. 13(B). As will be described in detail later, since the hot melt adhesive ADH is applied to the inside of the rear end of the top panel 23 by the top glue gun 260, the folding flap 29 and the rear end of the top panel 23 will eventually be glued together. and are bonded together using hot melt adhesive ADH.

Between the sheet folding part 310 and the crimping part 360, there is a side flap gluing gun 340 for gluing the front side flaps 26 and rear side flaps 28 of the wrap-around sheet 2, and a side flap gluing gun 340 downstream of the side flap gluing gun 340 is provided. A top side flap folding guide 336 and a bottom side flap folding guide 337 are provided for folding the top side flaps 24 and bottom side flaps 22 of the round sheet 2, respectively.

The side flap adhesive gun 340 is a spray gun that sprays hot melt adhesive ADH onto the front side flap 26 and rear side flap 28 of the wrap-round sheet 2. In the embodiment, the side flap glue gun 340 is capable of spraying in two directions, up and down, so that the top side flaps 24 and the bottom side flaps 22 can be adhered to the top and bottom of the front side flaps 26 and the rear side flaps 28, respectively. I used a general-purpose glue gun. The hot melt adhesive ADH is an EVA (ethylene vinyl acetate copolymer compound) type hot melt adhesive ADH whose softening point is adjusted to 90° C. and open time is adjusted to 20 seconds.

As shown in FIGS. 8 and 9, the top side flap folding guide 336 is provided on the upper half side of the left and right side surfaces of the wrap-around caser main body 300 along which the package 3 flows, and extends upward and downward from upstream to downstream. They are arranged so as to be narrowed from the left and right, downward and inward from the outside. In order to correspond to this, the bottom side flap folding guide 337 is provided on the lower half side of the left and right sides of the wrap-around caser main body 300 where the package 3 flows, and extends from the upstream to the downstream, from the bottom and from the outside to the top. It is arranged on the inside so that it is narrowed from the left and right. The downstream left and right distances between the top side flap folding guide 336 and the bottom side flap folding guide 337 are adjusted to accommodate the left and right width of the package 3 formed from the wraparound sheet 2. As shown in FIG. 9, the vertical distances between the top side flap folding guide 336 and the bottom side flap folding guide 337 on the downstream side are close to each other. The top side flap folding guide 336 and the bottom side flap folding guide 337 cause the top side flap 24 and the bottom side flap 22 of the wraparound sheet 2 to move forward (downstream) as the package 3 flows forward (see FIG. 13C). Each is folded inward as shown.

The top side flap folding guide 336, the bottom side flap folding guide 337, and the side flap gluing gun 340 are movable back and forth with respect to the frame 301 of the wrap-around caser body 300, and can symmetrically adjust the left and right widths. It is connected to the adjustable width adjustment frame 303 via a vertically movable ball screw shaft 335 (FIG. 9). As a result, these can be moved in the front-back direction by operating the front-back length adjustment handle 386, and can be moved left and right symmetrically by operating the folding part width adjustment handle 383, and the screw shaft can be moved up and down. It can be moved up and down by operating the folding part height adjustment handle 382 that rotates the folding part height adjustment handle 382. The package 3 with the top side flaps 24 and the bottom side flaps 22 bent is conveyed to a crimping section 360 provided within the moving machine frame 302.

As shown in FIGS. 8 and 9, the mobile frame 302 has a front folding guide 330 (front flap folding guide 331, front It is a frame body that moves back and forth so that the positions of the side flap folding guide 333 and the temporary holding plate 338 can be adjusted back and forth. The forward and backward movement of the moving machine frame 302 is achieved by inserting longitudinal ball screw shafts (not shown) provided in the frame 301 of the wrap-around case body 300 into left and right screw holes cut in the forward and backward direction of the moving machine frame 302, respectively. 375 and 376 (FIG. 11) respectively, and by rotating the ball screw shafts 375 and 376 using a longitudinal length adjustment handle 386, the moving machine frame 302 is configured to move longitudinally. As shown in FIG. 11, the ball screw shaft 375 and the ball screw shaft 376 are configured to be interlocked by an interlocking chain 379, and a longitudinal length adjustment handle 386 is connected to the front end of the ball screw shaft 375. By rotating the mobile frame 302, the mobile frame 302 is configured to move back and forth.

Adjustment of the length of the sheet folding section 310 in the front and rear direction with respect to the size change of the length of the package 3 of the wrap-around sheet 2 in the front and rear direction is performed by moving the moving machine frame 302, and the front folding guide 330 (front The positions of the flap folding guide 331, front side flap folding guide 333, and temporary holding plate 338) are adjusted back and forth. The travel distance when the package 3 is conveyed to the crimp section 360 in the moving machine frame 302 by the case pusher 351 as a conveyance means is such that the shorter the length of the package 3 in the front-rear direction, the farther upstream the crimp section 360 is. Since it can be moved to , it can be shortened. Therefore, by making it possible to change the travel distance of the case pusher 351, the travel distance of the case pusher 351 as a conveying means can be shortened depending on the size of the package 3 (length in the front and back direction), and If the package 3 is small, the round caser main body 300 can shorten the travel distance of the case pusher 351 by controlling the stepping motor, and can increase the number of packages packaged per unit time.

The crimping unit 360 is provided within the moving machine frame 302, and presses the gluing portion of the package 3 of the wrap-round sheet 2 that has wrapped the container BOT, thereby crimping the gluing. The crimping part 360 is provided with left and right side pressing parts 361 that press the top side flaps 24 and bottom side flaps 22, and a top pressing part 362 that presses the top 23, corresponding to the glued part. These pressing parts press the glued portion of the package 3 using an air cylinder that presses with compressed air.

The top pressing part 362 is fixed to the moving machine frame 302, and the left and right side pressing parts 361 are provided on the front side of the moving machine frame 302 so that the left and right width can be adjusted depending on the size of the package 3. The left and right ball screw shafts 373 are provided so that the left and right lengths can be adjusted symmetrically. The left and right widths of the side pressing portion 361 are adjusted using the crimp portion width adjustment handle 385.

Since the sheet folding part 310 and the crimping part 360 are provided symmetrically so that the left and right lengths can be adjusted, the wrap-around caser main body 300 has a conveyance center plane CCS in the front-rear direction passing through the left and right centers of conveyance. The wrap-round caser main body 300 is maintained without shifting from the left and right center.

As shown in FIG. 9, a stopper 363 is provided in front of the moving machine frame 302 to which the crimping part 360 is attached, to prevent the package 3 transported forward by the case pusher 351 from sliding forward. There is. The stopper 363 is provided so as to be movable back and forth within the mobile frame 302 in conjunction with the movement of the mobile frame 302 back and forth. In the stopper 363, two ball screw shafts 377 (FIGS. 1 and 11) pass through screw holes (not shown) cut in the front-rear direction of the stopper 363, and the stopper 363 is rotated by rotating the ball screw shafts 377. It is configured to move back and forth. The ball screw shaft 377 is configured to be interlocked with the ball screw shafts 375 and 376, which move the moving machine frame 302 back and forth, by an interlocking chain 379 (FIG. 11). The ball screw shaft 377 has a screw pitch so that the amount of movement is twice that of the ball screw shafts 375 and 376. In other words, the stopper 363 moves relative to the frame by twice the amount of movement of the mobile device frame 302 relative to the frame 301, and the amount of movement of the stopper 363 relative to the mobile device frame 302 and the amount of movement of the mobile device frame 302 The amount of movement relative to frame 301 becomes equal. Thereby, the length of the package 3 in the crimp section 360 in the front-rear direction and the length of the package 3 in the sheet folding section 310 in the front-rear direction can be made the same. According to the operation procedure of the wrap-around caser 1, the stopper 363 is retracted from the inside of the crimping unit 360 after the crimping unit 360 presses the glued portion of the package 3, and transports the package 3 forward.

The height of the package 3 of the wrap-round sheet 2 wrapping the container BOT in the crimp section 360 is adjusted by adjusting the height of the slide 307 on which the bottom surface 21 of the package 3 slides. The slide 307 is integrally provided from near the rear end of the lifting lift 320 to near the front end of the crimp section 360 . The height of the top surface 23 side of the package 3, that is, the height of the top surface pressing part 362 that presses the top surface 23, is determined to be a constant height. The height of the package 3 of the wrap round sheet 2 is adjusted by rotating the slide height adjustment handle 381, and the height of the slide 307 is adjusted using the elevator lift 320 so as to match the height of the slide 307. The height of the lowering can be adjusted by controlling the stepping motor that moves the lifting lift 320. Since the height of the top surface pressing part 362 that presses the top surface 23 is set to a constant height, the height of the tip 351a (FIG. 14) of the case pusher 351 that folds the folding flap 29 of the wrap-around sheet 2 is also constant. stipulated in Therefore, when changing the size of the wrap-around sheet 2, it is not necessary to adjust the height of the tip 351a.

As shown in FIG. 9, when the package 3 of the wrap-round sheet 2 is conveyed from upstream to downstream (front), the vertical height of the top surface 23 side of the wrap-round sheet 2 is fixed. A reference plane TRS is set, and a bottom surface moving surface BAS is set, in which the vertical height of the slide 307 on which the bottom surface 21 slides is adjusted according to the size (height in this case) of the package 3. The height of the top surface 23 is a fixed top surface reference surface TRS, and the vertical height of the bottom surface moving surface BAS is adjusted depending on the size of the package 3. Therefore, by making it possible to change the travel distance of the lift 320 depending on the size (height) of the package 3, the travel distance of the lift 320 can be shortened, and the wrap-around caser main body 300 If the package 3 is small, the travel distance of the lifting lift 320 controlled by a stepping motor can be shortened, and the number of packages per unit time can be increased. In addition, in the conventional wrap-round caser, since the height of the bottom moving surface in the vertical direction is fixed, there is no one that can shorten the travel distance for raising and lowering the wrap-round sheet.

Further, the vertical center CEN (FIG. 9) of the top side flap folding guide 336, bottom side flap folding guide 337, and side flap glue gun 340 connected to the width adjustment frame 303 is the height of the package 3. It is adjusted by the folding part height adjustment handle 382 so that it is placed at the center of the top reference surface TRS and the bottom moving surface BAS in the vertical direction.

A roller conveyor 309 is provided on the downstream side of the crimping unit 360 to forward the package 3 of the wrap-round sheet 2 containing the container BOT. Adjusted to be equal to height. The downstream side of the roller conveyor 309 is connected to a shipping waiting area for the packages 3 and the like.

As shown in FIGS. 1 and 2, the storage frame 100 that accommodates the stacked wrap-round sheets 2 is installed on the upstream left side next to the wrap-round caser main body 300, and wraps the stored wrap-round sheets 2. A sheet feeding device 200 that feeds the round caser main body 300 is provided so as to cover the housing frame 100 from above. Since the storage frame 100 is installed beside the wrap-round caser main body 300, that is, on the installation surface of the wrap-round caser main body 300, it is possible to easily fill the wrap-round sheet 2, and the wrap-round A large amount of sheets 2 can be filled. In addition, in the conventional wrap-round caser, the storage frame is arranged above the wrap-round caser, and the lowest sheet of the stacked wrap-round sheets is sucked by a suction cup and supplied to the wrap-round caser body. Therefore, the bottom side is the opening that serves as the sheet ejection port, and the part that holds the sheet is limited to the outer periphery of the sheet. Depending on the amount of sheets stacked on top, the weight may cause the sheets to deform or partially fall off, resulting in suction errors. This may cause the seat to fall. For this reason, the conventional storage frame cannot be filled with a large amount of wrap-round sheets, and must be frequently replenished with wrap-round sheets. Furthermore, in conventional wrap-round casers, the sheet feeding device is complicated and takes up space because the wrap-round sheet is taken out from the bottom of the storage frame placed above the wrap-round caser. These often caused obstacles during operation and maintenance of the service.

The storage frame 100 stores the wrap-round sheets 2 in a vertically stacked manner so that the front-rear direction of the wrap-round sheets 2 corresponds to the front-rear direction of the storage frame 100. In order to be able to use wrap-round sheets 2 of various sizes, the front support frame 110 and the rear support frame 120 that support the four corners of the wrap-round sheet 2 are provided so that their widths can be adjusted left and right, and their positions can be adjusted back and forth. is possible.

The left and right widths are set such that the seat center line WCL in the front-rear direction passing through the left-right center of the wrap-round sheet 2 overlaps the front-rear storage center line SCS passing through the left-right center of the storage frame 100. Specifically, the left and right sides of the front support frame 110 and the rear support frame 120 are formed separately, and each is provided with a left and right ball screw shaft 130 that is cut into a right-hand screw and a left-hand screw on the left and right sides, respectively. Left and right ball screw shafts 130 pass through screw holes provided on the left and right sides of the front support frame 110 and the rear support frame 120, respectively. Thereby, the front support frame 110 and the rear support frame 120 can slide left and right symmetrically with respect to the accommodation center plane SCS. As shown in FIGS. 2 and 4 to 7, the width of the front support frame 110 is adjusted in the left and right directions by rotating the front width adjustment handle 141 connected to the left and right ball screw shafts 130. The width of the rear support frame 120 is adjusted in the left and right directions by rotating the rear width adjustment handle 143 connected to the left and right ball screw shafts 130.

The left and right pairs of the front support frame 110 and the rear support frame 120 are configured such that the front support frame 110 and the rear support frame 120 slide left and right symmetrically with respect to the accommodation center plane SCS by the left and right ball screw shafts 130. Although it is possible, the left and right widths of the front support frame 110 and the left and right widths of the rear support frame 120 can be different widths (lengths). In other words, even if the wrap-round sheet 2 has a front width FW and a rear width BW that are different in width from front to back as shown in FIG. By adjusting the width to the front width FW and adjusting the width of the rear support frame 120 to the rear width BW, the wrap-round seat 2 is moved to the storage frame so that the seat center line WCL overlaps the storage center plane SCS. can be accommodated.

Since the sheet folding part 310 and the crimping part 360 of the wrap-around caser main body 300 are provided symmetrically so that the left and right lengths can be adjusted, the wrap-round caser main body 300 is The conveyance center plane CCS in the direction is maintained without being deviated from the left and right center of the wrap-around caser body 300. In the storage frame 100, a storage center plane SCS passing through the left and right centers is always at a constant distance FD (Fig. 1 to FIG. 3), it is installed relative to the wrap-around caser body 300. Thereby, the moving distance of the wrap-around sheet 2 in the left-right direction is always a constant distance FD.

The positions of the front support frame 110 and the rear support frame 120 can be adjusted in the front-rear direction by means of a front position adjustment handle 142 and a rear position adjustment handle 144, respectively, which adjust the positions back and forth. The front and rear positions are arranged such that the bottom surface 21 of the lap round sheets 2 to be stacked is aligned with the sheet folding part 310 of the wrap round caser main body 300 in the front and rear direction. The sheet center line WCL overlaps the accommodation center plane SCS, and the conveyance center plane CCS in the front-rear direction passing through the left and right centers of conveyance is maintained at the left and right center of the wrap-around caser body 300, so that the sheet is housed in the accommodation frame 100. The wrapped sheet 2 always moves to the right by a constant distance FD (FIGS. 1 to 3) even if the size is changed. As a result, the sheet center line WCL is placed on the conveyance center plane CCS, and the bottom surface 21 of the wrap-around sheet 2 is placed on the sheet folding part 310 of the wrap-around caser main body 300.

As shown in FIG. 4, the storage frame 100 is provided with a sheet feeding device 200 that feeds the wraparound sheet 2 to the wraparound caser body 300, and the sheet feeding device 200 feeds the wraparound sheet 2 to a fixed position. A sheet elevating table 240 for raising the sheet, a suction cup 215 for temporarily sucking and holding the raised wrap-round sheet 2, and a transport arm 210 for transporting the wrap-round sheet 2 to the wrap-round caser body 300 are provided. ing.

As shown in FIG. 3, the transport arm 210 is an arm that moves the wrap-round sheet 2 accommodated in the storage frame 100 to the wrap-round caser main body 300, and moves the front end side and the rear end side of the wrap-round sheet 2. Two transport arms 210 are provided, each supporting and transporting. The transport arm 210 has a slide rail 211 that slides the wrap-round sheet 2 from the sheet supply device 200 toward the wrap-round caser body 300, and along the slide rail 211, the rotation of the motor is converted into reciprocating motion by a pinion. Push-out driven bodies 213 that convert and push out the wrap-round sheet 2 are provided inside the two slide rails 211 in the front-rear direction. The slide rail 211 is made of metal and has a substantially L-shaped cross section in the front-rear, up-down direction so that it can support the lower side and the outside of the wrap-round seat 2 in the front-rear direction. A stop portion 211a for stopping the movement of 2 is provided.

The length of the slide rail 211 in the left and right direction is adjusted when changing the size of the wrap round sheet 2, but when the wrap round caser 1 is operated, it is fixed to the sheet supply device 200 and the length in the left and right direction is also fixed. be done. The position of the tip of the extrusion driven body 213 in the extruded state (the position of the tip of the stroke of the extrusion driven body 213) of the extrusion driven body 213 is adjusted in the left-right direction when changing the size of the wraparound sheet 2. However, when the wrap-around caser 1 is in operation, the tip position of the stroke of the extrusion driven body 213 is fixed. The slide rail 211 and the extrusion driven body 213 are provided so that they can be slid left and right symmetrically by the left and right ball screw shafts 212 when changing the size of the wrap round sheet 2, and the position of the tip of the slide rail 211 is and the position of the tip of the extrusion driven body 213 in the extruded state so that the center thereof overlaps with the conveyance center plane CCS of the wrap-around caser main body 300. In other words, the wrap-around sheet 2 whose sheet center line WCL is placed so as to overlap the accommodation center plane SCS of the accommodation frame 100 is always kept at a constant distance when being conveyed to the wrap-around caser body 300. By moving to the right by FD (FIGS. 1 to 3), the sheet center line WCL of the wrap-around sheet 2 is arranged above the conveyance center plane CCS.

The length of the tip position of the slide rail 211 and the tip position of the stroke of the extrusion driven body 213 when changing the size of the wrap-around sheet 2 is determined by the front width adjustment handle 141 shown in FIG. , the left and right ball screw shafts 212 of the transport arm 210 are rotated, and the length is adjusted to be the same as the width of the front support frame 110 (front width FW).In the rear transport arm 210, the rear width adjustment handle 143 As a result, the left and right ball screw shafts 212 on the rear side are rotated, and the length is adjusted to be the same as the width of the rear support frame 120 (the width BW on the rear side). That is, when the wrap-round sheet 2 is conveyed to the wrap-round caser main body 300, the lengths of the tip position of the slide rail 211 and the tip position of the stroke of the extrusion driven body 213 are the front width FW of the wrap-round sheet 2 and the rear width FW of the wrap-round sheet 2. The sheet center line WCL of the wrap-round sheet 2 is arranged above the conveyance center plane CCS, which is equal to the side width BW.

As shown in FIGS. 3 to 7, suction cups 215 for temporarily sucking and holding the wrap round sheet 2 are provided on the front and back outer sides of the extrusion driven body 213 on the side of the housing frame 100, and the suction cups 215 are provided below the suction cups 215. Auxiliary rails 220 for holding and sliding the wrap-round sheet 2 are provided in the left-right direction on the sides so as to be retractable to the outside of the storage frame 100. The auxiliary rail 220 is configured to be able to enter the inside of the storage frame 100 and move to the outside of the storage frame 100 by driving the air cylinder 220a. The auxiliary rail 220 is made of metal and has a substantially L-shaped cross section in the front-back and up-down direction so that it can support the lower side and the outside of the wrap-around seat 2 in the front-rear direction. When inserted, the tip (right) side of the auxiliary rail 220 is configured to be continuous and integrated with the slide rail 211, so that the wrap-around sheet 2 can slide from the auxiliary rail 220 to the slide rail 211.

The wrap-around sheet 2 is moved to a height where it is held by the conveyance arm 210 by a sheet lifting platform 240, which will be described later, and then the suction cup 215 is lowered by the air cylinder 215a, and as shown in FIG. One of the wrap-round sheets 2 stacked on top is temporarily sucked and held by a suction cup 215. One wraparound sheet 2 sucked by the suction cup 215 is raised by the air cylinder 215a, and the auxiliary rail 220 enters from the outside under the wraparound sheet 2 held by the suction cup 215, and the suction of the suction cup 215 is released. The wrap-around sheet 2 is held by an auxiliary rail 220 and a sliding support 230, which will be described later, as shown in FIG. Then, the wraparound sheet 2 slides on the auxiliary rail 220 and the slide rail 211 by the extrusion of the extrusion driven body 213, and is moved onto the wraparound caser main body 300. The wrap-round sheet 2 that has been moved onto the wrap-round caser body 300 has its bottom surface 21 placed on the lifting lift 320 of the sheet folding section 310, and as shown in FIG. 10, the container BOT is placed on the bottom surface 21. It will be placed.

As shown in FIGS. 2 and 5, between the two front and rear transport arms 210, there is a wrap-round sheet that bends downward when the transport arm 210 moves the wrap-round sheet 2 to the wrap-round caser body 300. A sliding support 230 is provided between the front and rear of the auxiliary rail 220, which supports and slides approximately the middle portion of the auxiliary rail 220 in the front-rear direction. The sliding support 230 is movable to a position where it is removed from the storage frame 100 on a plane in order to obstruct the path of the wrap-round sheet 2 when the wrap-round sheet 2 is supplied to the transport arm 210. In FIG. 2, the sliding support 230 is shown in a solid line when it is detached from the accommodation frame 100 on a plane, and by a two-dot chain line when it is in a state where it supports and slides the wrap-around sheet 2.

The sheet elevating table 240 is a base on which the wrap-round sheets 2 are stacked, and is used to lift the wrap-round sheets 2 and thereby deliver the wrap-round sheets 2 to the transport arm 210. The seat lifting platform 240 is raised and lowered by rotation of a ball screw shaft using a stepping motor (not shown).

Support plates 250 that temporarily support the wrap-around sheet 2 are provided under each of the auxiliary rails 220 provided at the front and rear of the sheet feeding device 200 so as to be retractable to the outside of the storage frame 100. The support plate 250 is made of metal and has a substantially L-shaped cross section in the front and rear directions so as to be able to support the lower side and the outside of the wrap round seat 2 in the front and rear directions. It is configured so that it can be evacuated outside. As shown in FIG. 7, the wrap-round sheets 2 stacked on the seat lifting platform 240 are temporarily supported by the support plate 250, and the wrap-round sheets 2 are stacked on the seat lifting platform 240 by lowering the sheet lifting platform 240. Can be replenished.

As shown in FIGS. 2 and 7, between the front and back of the support plate 250, there is a substantially intermediate portion in the front and back direction of the wrap-round sheet 2 that bends downward when the sheet lifting platform 240 is refilled with the wrap-round sheet 2. An auxiliary support plate 255 is provided on the lower side of the wrap-around sheet 2. The auxiliary support plate 255 is movable to a position where it is removed from the storage frame 100 on a plane in order to obstruct the path of the wrap-round sheet 2 when the wrap-round sheet 2 is supplied to the transport arm 210.

As shown in FIG. 1, a top gluing gun 260 is provided on the right side of the front transport arm 210 to apply hot melt adhesive ADH to the inside of the front end of the top surface 23, which is the upper side of the front end of the wraparound sheet 2. When the transport arm 210 moves the wrap-round sheet 2 to the wrap-round caser body 300, the top glue gun 260 applies hot melt adhesive ADH to the inner front end of the top surface 23 of the wrap-round sheet 2. The wraparound sheet 2 coated with the hot melt adhesive ADH is conveyed by the sheet supply device 200 to the sheet folding section 310 of the wraparound caser body 300, and a predetermined number of containers BOT are packed therein.

Next, a method of adjusting the wrap-around caser 1 by changing the size of the package 3 formed by folding the wrap-round sheet 2 will be described. Adjustment of the wrap-around caser 1 includes adjustment of the wrap-around caser main body 300 and adjustment of the accommodation frame 100.

To adjust the wrap-around caser body 300, use the lift width adjustment handle 380 shown in FIG. Adjust the height of the folding part to the height of the package 3 using the folding part height adjustment handle 382, and adjust the width of the folding part to the left and right sides of the package 3 using the folding part width adjustment handle 383. Just adjust the width of the crimping part to the left and right width of the package 3 using the crimping part width adjustment handle 385, and adjust it to the front and rear length of the package 3 using the front-rear length adjustment handle 386. That's enough. Specifically, first, by rotating the lift width adjustment handle 380, the distance between the left and right rear side flap folding guides 334 is adjusted to a length that accommodates the left and right width of the package 3. After adjusting the lift width adjustment handle 380, the slide height adjustment handle 381 is rotated to move the slide 307 up and down from the bottom moving surface BAS to the top reference surface TRS (FIG. 9). Adjust the spacing to a height that accommodates the top and bottom of the package 3. After adjusting the slide height adjustment handle 381, the crimping part width adjustment handle 385 is rotated to adjust the distance between the left and right side pressing parts 361 to a length that accommodates the left and right width of the package 3. After adjusting the crimp part width adjustment handle 385, by rotating the folding part height adjustment handle 382, the vertical center CEN of the top side flap folding guide 336 and the bottom side flap folding guide 337 is adjusted (FIG. 9). is adjusted to the height of the center between the bottom moving surface BAS and the top reference surface TRS. After adjusting the folding part height adjustment handle 382, by rotating the folding part width adjustment handle 383, the interval between the left and right front side flap folding guides 333 is adjusted to a length that accommodates the left and right width of the package 3. do. After adjusting the folding part width adjustment handle 383, by rotating the front-rear length adjustment handle 386, the distance between the front side flap folding guide 333 and the rear side flap folding guide 334 can be adjusted so that the front and back of the package 3 can be adjusted. Adjust to length. At this time, the stopper 363 of the moving machine frame 302 moves twice as much as the moving distance of the moving machine frame 302 with respect to the frame 301, so the length of the package 3 in front and behind with respect to the crimping part 360 is adjusted. .

To adjust the storage frame 100, use the front width adjustment handle 141 to adjust the front width to the front width FW of the wrap-around sheet 2, and adjust the rear width to the rear width using the rear width adjustment handle 143, as shown in FIGS. 2 and 4. It is sufficient to adjust the bottom surface 21 to the longitudinal position of the seat folding part 310 using the front position adjustment handle 142 and the rear position adjustment handle 144 according to the BW. Specifically, first, by rotating the front width adjustment handle 141 and the rear width adjustment handle 143, the interval between the front support frames 110 is adjusted to the width FW on the front side of the wrap-around seat 2, and the interval between the rear support frames 120 is adjusted. are adjusted to the width BW of the rear side of the wrap round sheet 2. At this time, by adjusting the front width adjustment handle 141 and the rear width adjustment handle 143, the length between the tip of each of the front and rear slide rails 211 and the tip of the extrusion driven body 213 in the pushed out state is adjusted. The front width FW and the rear width BW are adjusted. After adjusting the front width adjustment handle 141 and the rear width adjustment handle 143, by rotating the front position adjustment handle 142 and the rear position adjustment handle 144, the longitudinal position of the bottom surface 21 of the wraparound sheet 2 to be accommodated can be adjusted. It is adjusted to match the front and rear positions of the sheet folding part 310 of the wrap-round caser main body 300, and the distance between the front support frame 110 and the rear support frame 120 is adjusted to match the length of the wrap-round seat 2 to be accommodated. adjust. Thereby, when the wrap-round sheet 2 is supplied from the storage frame 100 to the wrap-round caser main body 300, the bottom surface 21 of the wrap-round sheet 2 matches the sheet folding portion 310.

Next, a method of packing a container BOT using the wrap-round caser 1 will be explained based on the flow of the wrap-round sheet 2.

As shown in FIGS. 2 and 4, the wrap-round sheets 2 are first stacked and stored on the sheet lifting platform 240 within the storage frame 100. The front support frame 110 and the rear support frame 120 that support the four corners of the wrap-around sheet 2 are provided so that their lengths and widths can be adjusted in the front and rear and left and right directions. Since the front support frame 110 and the rear support frame 120 are provided so as to be able to slide left and right symmetrically with respect to the accommodation center plane SCS, the seat center line WCL of the wrap-around seat 2 is located above the accommodation center plane SCS. The wrap-around sheets 2 are accommodated in the accommodation frame 100 so as to overlap with each other.

The wrap-round sheets 2 stacked and stored in the storage frame 100 are moved by the sheet lifting platform 240 to a height where they are held by the transport arm 210, and then the suction cup 215 is lowered by the air cylinder 215a, and the wrap-round sheets 2 are moved as shown in FIG. As shown, one of the wrap-around sheets 2 stacked on the top of the sheet lifting table 240 is temporarily sucked and held by the suction cup 215. One wraparound sheet 2 sucked by the suction cup 215 is raised by the air cylinder 215a, and the auxiliary rail 220 enters from the outside under the wraparound sheet 2 held by the suction cup 215, and the suction of the suction cup 215 is released. As a result, the wraparound sheet 2 is supported by the auxiliary rails 220, as shown in FIG.

The wrap-round sheet 2 supported by the auxiliary rail 220 is pushed out to the right by the push-out driven body 213, is slid from the auxiliary rail 220 onto the slide rail 211, and is placed above the sheet folding portion 310 of the wrap-round caser body 300. transported to. At this time, the center between the tip of the slide rail 211 and the tip of the extrusion driven body 213 overlaps the conveyance center plane CCS of the wraparound caser body 300, and the sheet center line WCL of the wraparound sheet 2 is aligned with the conveyance center plane. Overlaid on top of CCS. That is, the wrap-around sheet 2 is transported from the storage frame 100 to the wrap-around caser main body 300 so that the sheet center line WCL overlaps the transport center plane CCS without the need for lateral position adjustment.

When the wrap-round sheet 2 is conveyed to the wrap-round caser main body 300, hot melt adhesive ADH is applied to the inner front end of the top surface 23 of the wrap-round sheet 2 by the top glue gun 260.

The wrap round sheet 2 conveyed onto the wrap round caser main body 300 has its bottom surface 21 placed on the elevating lift 320, and a container BOT stacked in a predetermined number to be packed is placed on top of the wrap round sheet 2. It is placed by the device 5. At the same time as the container BOT is placed, the lifting lift 320 is lowered, and as shown in FIG. 25 and rear flap 27 are each folded upward. At almost the same time, the front side flap folding guide 333 and the rear side flap folding guide 334 cause the left and right front side flaps 26 to move inwards to the front flaps 25 and the rear side flaps 28 to the rear flaps 27. Each side is folded forward and inward.

By lowering the lifting lift 320 below the installation position of the slide 307, the wrap-around sheet 2 for packing the container BOT is placed on the slide 307, and then transported forward by the case pusher 351. Ru. When the case pusher 351 comes into contact with the package 3 made of the wrap-round sheet 2, as shown in FIG. Fold. Further, when being conveyed forward, the top surface 23 of the wrap-around sheet 2 comes into contact with the lower end 331b (FIG. 9) of the front flap folding guide 331, and the top surface 23 is bent backward. After the folding flap 29 is folded forward, the top surface 23 is folded backward, so that the side of the top surface 23 coated with the hot melt adhesive ADH overlaps the folding flap 29.

When the package 3 made of the wrap-around sheet 2 is transported forward by the case pusher 351, the side flap gluing gun 340 installed downstream of the sheet folding section 310 separates the front side flap 26 and the rear side flap of the wrap-round sheet 2. Hot melt adhesive ADH is sprayed onto the side flaps 28. After that, on the downstream side, as the package 3 flows forward (downstream), the top side flaps 24 and bottom side flaps 22 of the wraparound sheet 2 are moved by the top side flap folding guide 336 and the bottom side flap folding guide 337. , each of which is bent inward, and the wraparound sheet 2 for packaging the container BOT becomes a package 3 and is conveyed to the crimping section 360.

The top surface 23 of the package 3 made of the wrap-round sheet 2 conveyed to the crimping section 360 is pressed by the top surface pressing section 362, and the left and right sides are pressed by the side surface pressing sections 361, respectively. As a result, the top surface 23, front flap 25, bottom surface 21, rear flap 27, and fold-in flap 29 arranged in the front and rear of the wrap-round sheet 2 wrap the container BOT, which is the stored object, in the circumferential direction with the left-right direction as the axial direction, The hot melt adhesive ADH applied to the inside of the top surface 23 adheres to the outside of the folding flap 29, and the circumferential direction is closed. On the left and right, hot melt adhesive ADH applied to the front side flaps 26 bent backward from the front flap 25 and the rear side flaps 28 bent forward from the rear flap 27 is applied downward from the top surface 23. The top side flaps 24, which are bent upward, and the bottom side flaps 22, which are bent upward from the bottom surface 21, are adhered to each other, and the left and right sides are closed and packed.

According to the wrap-round caser 1 according to the embodiment of the present specification, the wrap-round sheet 2 has a seat center line WCL that passes through the left and right centers and connects the seat centers in the front-back direction within the accommodation center plane SCS of the accommodation frame 100. They are accommodated in the accommodation frame 100 so as to overlap with each other. Further, the conveyance center plane CCS in the longitudinal and up-down directions connecting the left and right centers of the sheet folding section 310 of the wrap round caser main body 300 is arranged parallel to and separated from the storage center plane SCS by a certain distance, and the sheet feeding device 200 The round sheet 2 is fed from the storage frame 100 to the wrap round caser main body 300 by moving it a fixed distance FD. That is, in the wrap-round caser 1 of the embodiment, since the sheet supply device 200 always moves the wrap-round sheet 2 by a fixed distance FD of a fixed length, the article to be wrapped is changed and the type of the wrap-round sheet 2 is changed. Even if the change is made, the wrap-round seat 2 is accommodated in the storage frame 100 without the seat center line WCL in the front-rear direction passing through the left and right centers shifting to the left and right, and the wrap-round seat 2 is accommodated in the storage frame 100 without shifting the seat center line WCL to the left and right. It will be supplied to the server body 300. Therefore, when changing the article to be wrapped and the type of wrap round sheet 2, it is only necessary to adjust the left and right widths of the storage frame 100 and the left and right widths of the folding guide 330, making it easy to wrap. Round sheet 2 can be changed.

According to the wrap-round caser 1 according to the embodiment of the present specification, the wrap-round sheet 2 is folded by lowering the bottom surface 21 of the wrap-round sheet 2 and the lifting platform of the lifting lift 320 on which the article is placed. . The left and right folding guides 330 are provided so that their lengths can be adjusted symmetrically, and the front folding guide 330 is provided on the mobile frame 302 that is movable back and forth. Therefore, when changing the article to be wrapped and changing the type of wrap-around sheet 2, the left and right widths of the folding guide 330 are adjusted, and the front and rear positions of the mobile frame 302 where the front folding guide 330 is provided are adjusted. The wrap round sheet 2 can be easily changed by just making adjustments.

According to the wrap-round caser sheet supply device 200 according to the embodiment of the present specification, the wrap-round sheet 2 accommodated in the storage frame 100 is raised by the sheet lifting platform 240, sucked by the suction cup 215, and The article is conveyed to the conveyor arm 210, slid, and supplied to the wrap-around caser body 300 to package the article. The storage frame 100 includes a support plate 250 that temporarily supports the wrap-round sheet 2, and the sheet lifting platform 240 can be lowered while temporarily supporting the wrap-round sheet 2 even during packaging of the article. By doing so, the sheet lifting platform 240 can be filled with the wrap-round sheet 2. Since the storage frame 100 is installed beside the wrap-round caser main body 300, that is, on the installation surface of the wrap-round caser main body 300, it is possible to easily fill the wrap-round sheet 2, and the wrap-round A large amount of sheets 2 can be filled.

Note that the wrap-around caser 1 of the embodiment can also be implemented in the following forms as other embodiments.

In the wrap-round caser 1 of the embodiment, the adjustment range of the size (dimensions) of the package 3 formed by folding the wrap-round sheet 2 is not particularly limited, but the adjustment range of the left and right width is 250 mm. ~500 mm, the front and rear length adjustment range is 150 to 350 mm, and the vertical height adjustment range is 100 to 250 mm. If the size is within this range, it can be used for general-purpose size wraparound sheets 2.

In the wrap-round caser 1 of the embodiment, the left and right width of the folding guide 330 of the sheet folding part 310 is adjusted by operating the folding part width adjustment handle 383, and the left and right width of the crimp part 360 is adjusted by operating the crimp part width adjustment handle 385. Although these operations were performed separately, the operations of the folding section width adjustment handle 383 and the operation of the crimp section width adjustment handle 385 can be linked.

In the wrap-around caser 1 of the embodiment, the height of the slide 307 is adjusted by operating the slide height adjustment handle 381, and the vertical center CEN of the top side flap folding guide 336 and the bottom side flap folding guide 337 is adjusted. Although the height adjustment in FIG. 9 was performed separately by operating the folding section height adjustment handle 382, the operation of the sliding platform height adjustment handle 381 and the folding section height adjustment handle 382 are linked. It can be done. In this case, the movement ratio between the slide 307 and the center CEN can be 2:1.

In the wrap-round caser 1 of the embodiment, the wrap-round sheet 2 has the fold-in flap 29 shown in FIG. 12 provided behind the rear flap 27, but the fold-in flap 29A shown in FIG. A wrap-around seat 2A (overbody flap) provided in front of the vehicle can also be used. In this case, in order to prevent the folding flap 29A from coming into contact with the conveyance means, the conveyance means may use a case pusher 351A whose upper end side escapes rearward, as shown in FIG. The fold-in flap 29A is attached to the outside of the rear flap 27A, as shown in FIG. 16. As shown in FIGS. 16(A) and 17, the hot melt adhesive ADH is applied to the inside of the tip of the wrap-round sheet 2A, so the fold-in flap 29 shown in FIG. When changing the folding flap 29A shown in FIG. 15 from the one provided at the rear of the top surface 23A to the one shown in FIG. A hot melt adhesive ADH can be applied to the inside of the tip of the folding flap 29A (the inside of the tip of the wrap round sheet 2A).

DESCRIPTION OF SYMBOLS 1... Wrap round caser, 2... Wrap round sheet, 2A... Wrap round sheet, 3... Packing body, 3A... Packing body, 5... Container supply device, 21... Bottom surface, 21A... Bottom surface, 22... Bottom side flap, 22A ...Bottom side flap, 23...Top surface, 23A...Top surface, 24...Top side flap, 24A...Top side flap, 25...Front flap, 25A...Front flap, 26...Front side flap, 26A...Front side flap , 27... Rear flap, 27A... Rear flap, 28... Rear side flap, 28A... Rear side flap, 29... Fold-in flap, 29A... Fold-in flap, 100... Accommodation frame, 110... Front support frame, 120... Rear support frame , 130... Left and right ball screw shaft, 141... Front width adjustment handle, 142... Front position adjustment handle, 143... Back width adjustment handle, 144... Back position adjustment handle, 200... Sheet supply device, 210... Conveyance arm, 211... Slide Rail, 211a...Stop part, 212...Right and left ball screw shafts, 213...Extrusion driven body, 215...Sucker, 215a...Air cylinder, 220...Auxiliary rail, 220a...Air cylinder, 230...Sliding support body, 240...Seat elevating platform , 250... Support plate, 250a... Air cylinder, 255... Auxiliary support plate, 260... Top glue gun, 300... Wrap round caser body, 301... Frame, 302... Mobile machine frame, 303... Width adjustment frame, 307... Slide platform, 309... Roller conveyor, 310... Sheet folding section, 320... Lift, 330... Folding guide, 331... Front flap folding guide, 331a... Interference plate, 331b... Lower end portion, 332... Rear flap folding guide, 333... Front side flap folding guide, 334... Rear side flap folding guide, 335... Ball screw shaft, 336... Top side flap folding guide, 337... Bottom side flap folding guide, 338... Temporary holding plate, 338a... Gap, 340... Side Flap glue gun, 351...Case pusher, 351A...Case pusher, 351a...Tip, 360...Crimp part, 361...Side pressure part, 362...Top surface pressure part, 363...Stopper, 371...Left and right ball screw shaft, 372... Left and right ball screw shaft, 373...Left and right ball screw shaft, 375...Ball screw shaft, 376...Ball screw shaft, 377...Ball screw shaft, 379...Interlocking chain, 380...Elevating lift width adjustment handle, 381...Slide height adjustment Handle, 382... Folding part height adjustment handle, 383... Folding part width adjustment handle, 385... Crimping part width adjustment handle, 386... Back and forth length adjustment handle, ADH... Hot melt adhesive, BAS... Bottom moving surface, BOT... Container , BW...back width, CCS...conveyance center plane, CEN...center, FD...fixed distance, FW...front width, SCS...accommodation center plane, TRS...top reference plane, WCL...sheet center line.

Claims (7)

A wrap-round caser for wrapping an article with a wrap-round sheet,
The wrap-round seat has a top surface, a front flap, a bottom surface, a rear flap, and side flaps provided on both sides thereof in the front and rear direction,
The wrap-round caser includes a sheet folding section that folds the wrap-round sheet to wrap the article, and a conveyor that transports the wrap-round sheet wrapped around the article forward from the sheet folding section, in a frame that serves as a framework. means are provided,
The bottom surface and the article are placed on the sheet folding section, and an elevating lift for vertically moving the wrap-round sheet is provided,
The sheet folding section includes folding guides for folding the wrap-round sheet in the front, back, right and left directions,
The left and right folding guides are capable of adjusting the width of the left and right sides symmetrically with respect to a transport center plane in the front-rear, up-down direction passing through the left and right centers of the sheet folding section,
A wrap-round caser characterized in that the folding guide at the front is provided on a mobile frame that is movable back and forth within the frame. A rear flap folding guide, which is a vertical folding guide whose upper end is bent rearward and which folds the rear flap of the wrap-around sheet upward, is provided on the rear side of the lift;
A front flap folding guide, which is a vertically folding guide whose upper end is bent forward and which folds the front flap of the wrap-around sheet upward, is provided on the front side of the lift;
At the four diagonal corners of the lift, there are vertical folding guides whose upper ends are bent outward, and left and right folding guides are provided at the four diagonal corners of the lift to bend the left and right front side flaps and rear side flaps of the wrap-around seat inwardly in the front-rear direction. The wrap-around caser according to claim 1, wherein a front side flap folding guide and left and right rear side flap folding guides are respectively provided. A slide is provided on the lower side of the frame, on which a package in which a wrap round sheet is folded slides forward;
The wrap-around caser according to claim 1, wherein the slide is provided to be movable up and down. A side flap gluing gun for gluing the front side flaps and the rear side flaps is provided on the rear side of the mobile frame, and a side flap gluing gun is provided on the front side of the side flap gluing gun for bending the top side flaps and the bottom side flaps, respectively. A front side flap folding guide and a bottom side flap folding guide are provided.
The top side flap folding guide is provided on the upper half side of the left and right side surfaces on which the package slides, so as to be narrowed from the left and right from the top and outside to the bottom and inside, toward the front,
The bottom side flap folding guide is provided on the lower half side of the left and right side surfaces on which the package slides, so as to be narrowed from the left and right from the bottom and the outside to the top and inside toward the front. The wrap-round caser according to claim 3. A crimping part that presses the glued part glued by the glue gun and a stopper that suppresses the package from sliding forward are provided in the mobile frame,
4. The wraparound caser according to claim 3, wherein the stopper is provided so as to be movable back and forth in conjunction with the back and forth movement of the mobile frame with respect to the frame. The vertical height of the top surface side of the wrap round sheet 2 when the package is transported forward is fixed, and the travel distance of the lifting lift can be changed depending on the size of the package. 4. The wrap-round caser according to claim 3, wherein: 4. The wrap-round caser according to claim 3, wherein the travel distance of the conveyance means can be changed depending on the size of the package.

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