JP2004026160A - Automatic packaging method of kraft envelope with air cap and its device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To automate the work putting books or the like into a kraft envelope with air cap and packaging it. <P>SOLUTION: A book is put in between two sheets of kraft paper with air cap, whose front ends are welded in advance and further, it is pushed out from behind by a pusher 2 and at the same time pulled in from the front by a clamp device 4. Both sides and the ends are welded by a welder 5 at a position passed through by a specified width from a position where the book is covered with the kraft paper. The center of the end is cut to discharge the packaged book from a discharge device 31. The remaining welded part is used as the front end of the next package. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and an apparatus for automatically packaging a kraft envelope with an air cap for automatically wrapping a thick article to be packaged such as a magazine or book in the form of a bag with kraft paper with the air cap.
[0002]
[Prior art]
Books such as magazines and books (hereinafter simply referred to as "books") are generally stacked and bound between publishers and wholesalers and bookstores, circulated in a packaged state, and sent out in units of books. However, in recent years, online order forms such as the Internet have become widespread, and as a result, the number of occasions of putting one book in a bag and shipping it has increased. For shipping books, it is necessary to use an envelope having a cushion function in order to prevent damage and maintain aesthetic appearance. Generally, kraft envelopes with air caps are often used for this purpose.
[0003]
A kraft envelope with an air cap is a rugged envelope made of kraft paper, which has a button-shaped irregularity made of a heat-fusible resin film on the inner surface of the envelope. It is used to ship books, video cassettes, CDs, precision parts, etc., in addition to books. FIG. 10 is a conceptual diagram showing a state in which a book is placed in a kraft envelope with an air cap, in which Ka and Kb are kraft paper in which a film having an air cap formed on an inner surface thereof is bonded, and B is a book placed inside.
[0004]
Until now, books and other items were individually sent by hand by placing the item to be shipped in a commercially available kraft envelope with an air cap and sealing it. In that case, manual work requires a huge amount of manpower, and automation has been desired.
Also, an automatic packaging apparatus as described in Japanese Patent Application Laid-Open No. 2002-53103 has been developed. Book was bent and could not be inserted between the kraft papers with the air caps properly, causing inconveniences such as defective products and re-packaging.
[0005]
[Problems to be solved by the invention]
The present invention solves such a problem, and realizes an efficient automatic packaging apparatus for a kraft envelope with an air cap that can put a packaged object such as a book in a kraft envelope with an air cap without any trouble and ship it. The purpose is to do.
[0006]
[Means for Solving the Problems]
The automatic packaging method of the kraft envelope with the air cap according to the present invention is characterized in that the wrapped object is sandwiched between two upper and lower kraft papers with the air cap, the leading ends of which are pre-welded, and the wrapped object is horizontally moved from the rear with a pusher device. At the same time, the front end of the kraft paper with the air cap is grasped by the clamp device and pulled from the front, and the upper and lower two kraft papers with the air cap pulled out by the movement of the wrapped material cover the entire wrapped material. When it has passed at least twice the specified welding width from the position, the extrusion and drawing are stopped, and both sides and the end portion in the extrusion direction and the end portion are welded by a welding device, and at the same time, two upper and lower air caps at the end position Cut kraft paper and welded kraft paper with two upper and lower air caps at the portion following the cut end Together with left as the tip portion in the packaging of the next object to be packaged, characterized in that for discharging the packaged articles which further packaged attracts tip portion at the clamping device from the discharge device.
[0007]
The automatic packaging device for kraft envelopes with air caps according to the present invention includes a pair of upper and lower reels for rewinding kraft paper with air caps wound in a roll, a slide table for sliding the packaged object, and a slide table. A pusher device that pushes the items to be packaged horizontally from behind on the table, a clamp device that also pulls the items to be packaged from the front on the slide table, and a craft with two upper and lower air caps pulled out by the movement of the items to be packaged. A welding device for welding the sides and the end portion in the extrusion direction with the paper covering the entire packaged object, and a welding device for welding the following portion, and a cutting cutter for cutting the upper and lower two kraft papers with the air cap at the end position. A discharge device that is provided at one end of the slide table and discharges the packaged articles. The welding device is an automatic packaging device for the kraft envelope with the air cap, which comprises a metal pressure bar having a built-in heater and an elevating cylinder for raising and lowering the pressure bar. In addition to the portion following, the automatic packaging device for the kraft envelope with the air cap is to weld the middle of both sides in the extrusion direction, desirably the cutting cutter is the end portion perpendicular to the moving direction of the article to be packaged An automatic packaging device for the kraft envelope with the air cap, which is built in the pressure bar for welding, and further in which the perforated cutter is built in the same pressure bar at a distance parallel to the cutting cutter. This is an automatic packaging device for craft envelopes with caps.
[0008]
BEST MODE FOR CARRYING OUT THE INVENTION
In the present invention, the pusher device pushes the packaged object from the rear and simultaneously draws the tip of the kraft paper with the air cap from the front, so that the kraft paper does not have to be pulled out only by the pushing force of the packaged object, so that the waist is weak. Even the article to be packaged is packaged without being bent, and the efficiency and quality of automatic packaging can be improved.
[0009]
【Example】
An embodiment of the present invention will be described with reference to the drawings. Note that the article to be dispatched according to the present invention is not necessarily a book, but an example of a book will be described below. FIG. 1 is a front view showing an automatic packaging device for kraft envelopes with air caps according to the present invention. 1a and 1b are upper and lower reels around which kraft paper with air caps are wound. Pusher device, 3 is a slide table on which the book moves, 31 is a chute as a discharge device provided at the end thereof, 4 is a clamp device that grabs the leading end of the packaged book and pulls it in the horizontal direction. 5d) is a welding device, and 6 is a frame.
[0010]
The automatic packaging device for kraft envelopes with air caps includes a pair of upper and lower reels 1a and 1b for rewinding kraft paper with air caps wound in a roll, a slide table 3 for sliding and moving books, and this slide. A pusher device 2 for horizontally pushing a book from behind on a table 3, a clamp device 4 for drawing a book from the front on a slide table 3, and two upper and lower kraft papers with air caps drawn by the movement of the book. A welding device 5 for welding the sides and the end portion in the extrusion direction and a portion following the end in a state where the entire book is covered, and a cutting cutter 54 (FIG. 1) for cutting two upper and lower kraft papers with air caps at the end position. Are not shown, but will be described later). The packaged book provided at one end of the slide table 3 is discharged. That the chute 31, composed of a discharge apparatus such as a belt conveyor.
[0011]
The air cap film is made of a heat-sealing resin. When the air cap film is heated to about 200 ° C. and pressed for about 2 seconds, the air cap is crushed, the resin melts, and the kraft paper is welded. The essential points of the packaging operation will be described with reference to FIG. As shown in FIG. 2A, a book is sandwiched between the upper and lower kraft papers Ka and Kb with air caps, the periphery thereof is fused, and packaging is performed in the form shown in FIG. Tip E ₁ has already been welded.
[0012]
As will be described later, the welding device 5 is provided with a metal pressure bar perpendicular to the feed direction (moving direction of the book) and metal pressure bars parallel to the feed direction above and below both width positions. , At least one of the upper and lower pairs has a built-in heater. Also, a cutter is provided on the lower pressure bar perpendicular to the feed direction. Each pressure bar is raised and lowered to press and heat portions E ₂ , E ₃ , and E ₄ in FIG. 2A corresponding to the edge of the envelope. It is held until it is fused, during which the position of line CC in FIG. 2 is cut by a cutter. Since the fused portion E ₄ is dimensioned to fit the top and bottom of the envelope, by cutting the middle, tip is fused at the same time the next packaging and a rear end portion of the front of the packaging.
[0013]
The automatic packaging method of the kraft envelope with the air cap according to the present invention is characterized in that the wrapped object is sandwiched between two upper and lower kraft papers with the air cap, the leading ends of which are pre-welded, and the wrapped object is horizontally moved from the rear with a pusher device. At the same time, the front end of the kraft paper with the air cap is grasped by the clamp device and pulled from the front, and the upper and lower two kraft papers with the air cap pulled out by the movement of the wrapped material cover the entire wrapped material. When it has passed at least twice the specified welding width from the position, the extrusion and drawing are stopped, and both sides and the end portion in the extrusion direction and the end portion are welded by a welding device, and at the same time, two upper and lower air caps at the end position Cut kraft paper and welded kraft paper with two upper and lower air caps at the portion following the cut end Together with left as the tip portion in the packaging of the next object to be packaged, it is to discharge the objects to be packaged that is wrapped attracts further tip portion by the clamping device from the discharge device.
[0014]
FIG. 3 is a conceptual diagram for explaining this work procedure in a time series. 11a and 11b are upper and lower pinch rolls attached to the upper reel 1a and the lower reel 1b, 21 is a pusher head of the pusher device 2, and 41 is a clamp device 4. It is a clamp head. As shown in (a), a book B to be packaged is placed on the slide table 3. The top and bottom kraft papers Ka and Kb with the air caps are already fused at the leading ends as described above.
[0015]
As shown in (b), the clamp head 41 approaches from the left side and grasps the tip of the fused kraft paper with the air cap, while the pusher head 21 pushes the book B to the left from the right side. The upper reel 1a and the lower reel 1b are freely rotated by being pushed by the pusher head 21, and the kraft papers Ka and Kb with air caps are rewound. The pinch rolls 11a and 11b are not driven and rotate freely, but are provided with a one-way clutch that rotates only in one direction so that the reel does not sag. In this state, the clamp head 41 and the pusher head 21 move to the left while synchronizing with each other as shown in (c), and stop at a predetermined position as shown in (d). The predetermined position is a position where the cutting lines CC of the upper and lower kraft papers Ka and Kb with air caps shown in FIG. 2 coincide with the centers of the pressure bars 51a and 51b perpendicular to the feed direction of the welding device 5. At this position, the welding device 5 is operated to perform welding on the three sides described with reference to FIG. 2, and at the same time, cutting along the line CC in FIG. 2 is performed. When the welding and cutting are completed, the clamp head 41 moves to the left again as shown in (e), pulls out the wrapped book to the left, and releases the clamp, the book is ejected by the chute 31 or a discharging device such as a belt conveyor. Is discharged from During this time, the pusher head 21 is retracted to the right, the next book B 'is placed on the slide table 3, and the operation from (a) is repeated.
[0016]
Next, details of each unit of the apparatus will be described with reference to the drawings. 4 is a plan view showing the pusher device 2, and FIG. 5 is a front view. In addition to the reference numerals described above, 22 is a ball screw, 23 is a guide bar, and 24 is a rotating mechanism. The pusher head 21 is guided by two guide bars 23 so as to be able to move in parallel. The ball screw 22 is rotated by a rotation mechanism 24 composed of a motor, a timing belt, and the like, and the nuts engaged with the pusher head 21 are moved right and left in the figure. The book B is pushed and moved on the slide table 3 to the left.
[0017]
The mechanism for moving the pusher head 21 by the ball screw is not limited to the one illustrated here, but it is necessary to move the pusher head 21 in cooperation with the clamp head 41 as described in FIG. Desirable mechanisms are desirable.
FIG. 6 is a front view showing the clamp device 4, and FIG. 7 is an enlarged partial front view showing the clamp head 41. Reference numeral 42 denotes a tip of the clamp head 41 which is opened and closed by an actuator (not shown) to grasp kraft paper with an air cap. A finger to be released, 43 is a ball screw, 44 is a moving frame, and 45 is an extension bracket.
[0018]
The moving frame 44 is horizontally moved by rotating the ball screw 43, the clamp head 41 attached to the tip thereof is horizontally moved via the extension bracket 45, and the book wrapped with the kraft paper with the air cap is pulled to slide. The user moves the table 3 leftward. Although a rotation mechanism for rotating the ball screw 43 is not particularly shown, for example, a rotation mechanism similar to the rotation mechanism in the pusher device can be used.
[0019]
Although not particularly shown, it is possible to perform the same function by a simpler mechanism using an air cylinder or the like as the pusher device 2 and the clamp device 4.
8 is a partial front view showing the vicinity of the welding device 5 in FIG. 1, and FIG. 9 is a partial side view showing the vicinity of the welding device 5 as viewed from the left side in FIG. 1, but the clamp device 4 is omitted in FIG. . Reference numerals 51a to 51d denote metal pressure bars described earlier with reference to FIG. 2; 52, an elevating cylinder for raising and lowering each pressure bar; 53, a heater built in the upper one of the pressure bars 51a, 51c; A cutting cutter 55 built in the lower pressure bar 51b perpendicular to the direction is a perforated cutter 55 also built in the pressure bar 51b.
[0020]
As described in FIG. 2A, when the kraft paper with the air cap sandwiching the book is stopped at a predetermined position, the upper and lower pressure bars 51a to 51d are raised or lowered to remove the kraft paper with the air cap. It is welded, cut at a predetermined position by a cutting cutter 54, and perforated by a perforated cutter 55 as necessary. Needless to say, the perforation is for opening the delivered envelope, and is attached parallel to the cutting cutter 54, for example, at a distance of 20 mm.
[0021]
The dimensions of a book are classified into several types according to standards such as A4, A5, and new editions. In the automatic packaging apparatus of the present invention, the dimension in the feeding direction can be adjusted by the stop position of the clamp head 41 when performing welding and cutting. In the width direction, when small books such as paperback books are mixed, it is convenient to provide a pressure bar for welding the middle of both sides so that the middle book does not move during transportation. These are the pressure bars 51e and 51f in FIG. 9, which are provided with independent lifting cylinders, and are not operated when unnecessary. Figure 2 (b) shows the case of packaging books small relative to FIGS. 2 (a) described in Hasaki, E ₅ is welded portion of the new intermediate.
[0022]
The width dimension can be categorized into two types, 300 mm and 400 mm, including kraft paper standards. Therefore, the pressure bars 51c and 51d on both sides in the width direction can be configured to be freely replaceable, or a plurality of automatic packaging devices may be installed and each of the width dimensions may be dedicated.
As described above, the book shipping example has been described, but as described above, the present invention can be applied to any articles shipped in a craft envelope with an air cap.
[0023]
【The invention's effect】
ADVANTAGE OF THE INVENTION According to this invention, since the to-be-packaged material is pushed out from the back with a pusher apparatus, at the same time the front end of the kraft paper with an air cap is drawn from the front, it does not bend even with a weakly wrapped material, and the efficiency and quality of automatic packaging It has an excellent effect of improving
[Brief description of the drawings]
FIG. 1 is a front view showing an automatic packaging device for a craft envelope with an air cap according to an embodiment of the present invention.
FIG. 2 is an explanatory view illustrating an automatic packaging method of a kraft envelope with an air cap according to an embodiment of the present invention.
FIG. 3 is a conceptual diagram illustrating, in a time series, an automatic packaging method of a kraft envelope with an air cap according to an embodiment of the present invention.
FIG. 4 is a plan view showing a pusher device in the automatic packaging device for a craft envelope with an air cap according to the embodiment of the present invention.
FIG. 5 is a front view showing a pusher device in the automatic packaging device for a craft envelope with an air cap according to the embodiment of the present invention.
FIG. 6 is a front view showing a clamp device in the automatic packaging device for a craft envelope with an air cap according to the embodiment of the present invention.
FIG. 7 is a partial front view showing a clamp head of a clamp device in the automatic packaging device for a craft envelope with an air cap according to the embodiment of the present invention.
FIG. 8 is a partial front view showing the vicinity of the welding device in FIG. 1;
FIG. 9 is a partial side view showing the vicinity of a welding device in the automatic packaging device for a craft envelope with an air cap according to the embodiment of the present invention.
FIG. 10 is a conceptual diagram of a kraft envelope with an air cap according to the present invention.
[Explanation of symbols]
REFERENCE SIGNS LIST 1 (up and down) reel 2 pusher device 3 slide table 4 clamping device 5 welding device 6 frame 11 pinch roll 21 pusher head 22, 43 ball screw 23 guide bar 24 rotation mechanism 31 chute (discharge device)
41 Clamp Head 42 Finger 44 Moving Frame 45 Extension Bracket 51 Pressure Bar 52 Elevating Cylinder 53 Heater 54 Cutting Cutter 55 Perforated Cutter B Book E Fused Section K Kraft Paper

Claims (9)

The to-be-packaged material is sandwiched between two upper and lower kraft papers with air caps whose front ends are pre-welded, and the wrapped material is pushed out horizontally from the rear with a pusher device, and at the same time the kraft paper with the air caps is clamped with a clamp device. When the kraft paper with the two upper and lower air caps pulled out by the movement of the packaged object is gripped at the leading end portion and pulled out from the position covering the entire packaged object, the upper and lower kraft papers are pushed out at least twice the predetermined welding width. And stopping the drawing, welding the both sides and the end portion in the extrusion direction and the subsequent portion with a welding device, and simultaneously cutting the upper and lower two air-capped kraft papers at the end position, following the separated end portion. The left and right two pieces of kraft paper with air caps, which are welded, are left as the leading edge in the packaging of the next packaged item. Automatic packaging method of kraft envelope with air cap and butterflies. 2. The automatic packaging method for a kraft envelope with an air cap according to claim 1, wherein the packaged object is further discharged from the chute by further pulling the tip portion by the clamp device. A pair of upper and lower reels (1a, 1b) for rewinding the kraft paper with the air cap wound in a roll shape, a slide table (3) for sliding the packaged object and moving, and on the slide table (3) A pusher device (2) for pushing the packaged object from behind in the horizontal direction, a clamp device (4) for drawing the packaged object from the front on the slide table (3), and an upper and lower unit 2 pulled out by the movement of the packaged product. A welding device (5) for welding both sides and the end portion in the extrusion direction and a portion following the end portion in a state in which the kraft paper with the air cap covers the entire packaged object, and two upper and lower air caps at the end position An automatic packaging device for kraft envelopes with an air cap, comprising a cutting cutter (54) for cutting kraft paper with a wrapper. 4. The automatic packaging device for a craft envelope with an air cap according to claim 3, further comprising a discharge device (31) provided at one end of the slide table (3) and discharging a packaged object. 5. The automatic kraft envelope with an air cap according to claim 3 or 4, wherein the welding device (5) welds both sides and an end portion in the extrusion direction and a middle portion between both sides in the extrusion direction in addition to a portion following the end portion. Packaging equipment. The welding device (5) comprises a metal pressure bar (51a # -51f #) having a heater (53) built in at least one of the upper and lower pairs, and a lifting cylinder (52a # -52c #) for raising and lowering the pressure bar. 5. The automatic packaging device for a craft envelope with an air cap according to any one of 5. The automatic kraft envelope with an air cap according to any one of claims 3 to 6, wherein the cutting cutter (54) is incorporated in a pressure bar (51b #) for welding the end portion perpendicular to the moving direction of the packaged object. Packaging equipment. The automatic packaging device for a craft envelope with an air cap according to claim 7, wherein a perforated cutter (55) is built in the same pressure bar at a distance parallel to the cutting cutter (54). 9. The kraft envelope with an air cap according to claim 3, wherein a pinch roll having a one-way clutch that rotates in only one direction without driving is provided on a delivery side of the pair of upper and lower reels (1a, 1b). Automatic packaging equipment.

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