JP2005162304A - Automatic packing method and automatic packing device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To achieve an efficient packing operation and a reduction in labor cost. <P>SOLUTION: While an item 13 to be packed is kept on the bottom panel 2 of a packing sheet 2, the bottom panel 2 is pushed into the recess 23a of a folding slider 23 from above by a first pushing member 27, thereby erecting flaps 2b to 2e formed along the four sides of the panel 2. Subsequently, front and rear flaps 2b and 2c are pressed inwards and also downwards with a pair of counter first extension pressure rollers 33 which have flanges 33a outside. Consequently, the item 13 can softly be packed as if the packing sheet were folded with hands. In addition, spaces left between the side edges of the item 13 and the packing sheet 2 can be removed to restrain the movement of the item 13. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to an automatic packing method and an automatic packing apparatus for automatically packing an object to be packed such as a book with a packing sheet.

  Conventionally, when delivering assortments of books, video cassettes, DVDs (Digital Versatile Disks) and CD-ROMs in cans, hams, etc., the items to be packed are protected from vibration during transport. In order to do this, packaging is performed using a packaging sheet such as cardboard before shipment.

Conventionally, when packaging items to be packed of various sizes, for example, the packing sheets loaded in a magazine as disclosed in Japanese Patent Laid-Open No. 9-295620 are taken out one by one and formed into a packing sheet. A technique is disclosed in which a flap is partially folded along a ruled line, a packaged product is filled in this state, and then the paperboard sheet is finally formed into a box shape.
Japanese Patent Laid-Open No. 9-295620

  The technique disclosed in Patent Document 1 is a technique related to a device that sends out the packing sheets loaded in the magazine one by one, and the work of packing the objects to be packed of various sizes with the taken out packing sheets In many cases, an operator manually packs one by one.

  Therefore, the labor cost required for packing work increases. In addition, since packaging is performed manually, there is a limit to improving the work efficiency.

  In view of the circumstances described above, an object of the present invention is to provide an automatic packing method and an automatic packing device that can realize the efficiency of packing work and the reduction of labor costs.

  In order to achieve the above object, the first invention is an automatic packaging method for packaging an object to be packed on a packing sheet having a bottom panel on which the object to be packed is placed and flaps provided on four sides of the bottom panel. After the object to be packaged is placed on the bottom panel, the first step of erecting the four sides and the one of the two sides facing each other among the four sides of the flap are folded inward. And a second step of crushing the gap formed between the flap on one side and the article to be packed, and a third step of folding the other two sides on each other and overlapping each other. It is characterized by providing.

  In such a configuration, after placing the article to be packed on the bottom panel of the packing sheet, the flaps provided on the four sides of the bottom panel are erected, and then, among the four side flaps of the packing sheet, The flaps on one side facing each other are folded inward. At that time, the gap formed between the flap on one of the two sides and the article to be packed is crushed to restrict the movement of the article to be packed. Then, the other two side flaps are folded inward and overlapped to pack the article to be packed.

  In a second aspect based on the first aspect, the second step includes a flange portion that crushes a gap formed between the flaps on the two sides and the article to be packed from above, and the flap on the inside thereof. It has a taper-shaped pressing part that can be pressed from above, and is characterized in that it is performed by using a pressure spreading roller formed entirely of an elastic material.

  In such a configuration, the gap formed between the two opposing flaps of the packing sheet and the object to be packed is crushed from above by the flange portion provided on the pressure spreading roller formed of an elastic material. Then, the flap is bent on the upper surface of the article to be packed by pressing the flap from above with a tapered pressing portion provided inside the pressure-rolling roller.

  According to a second invention, in the first or second invention, the flap on the other two sides is folded inward between the second step and the third step, and is extended in the conveying direction of the packing sheet. It has a 2 'process of transferring the flap of the other two sides to the above-mentioned 3rd process in the state where the angle of inclination was held with the presser bar taken out.

  In such a configuration, after placing the article to be packed on the bottom panel of the packing sheet, the flaps provided on the four sides of the bottom panel are erected, and then, among the four side flaps of the packing sheet, After folding the two opposite side flaps inward, the other two side flaps are bent inward, and the other two side flaps are folded by the presser bar extending in the direction of transporting the packing sheet. In a state where the inclination angle is maintained, the wafer is transferred to the next process, and the other two side flaps are folded inward and overlapped to pack the article to be packed.

  In a fourth aspect of the present invention, there is provided a packing sheet having a bottom panel on which an article to be packed is placed and flaps provided on four sides of the bottom panel, and the packing sheet on which the article to be packed is placed. A transfer means for transferring onto a table having a recess having a shape along the side, a pressing means for dropping the bottom panel from above into the recess via the article to be packed and standing up the four side flaps, and Of the flaps on each of the four sides, the two opposite sides of the flap are folded inward, and a gap formed between the folded portion of the flap and the side of the package is defined as the width of the package. And a second pressure-developing roller that folds the other two side flaps inward and superimposes the flaps on each other.

  In such a configuration, after the article to be packed is placed on the bottom panel of the packing sheet, the packing sheet is transferred to a table having a recess by the transfer means. Then, the bottom panel is pressed from above via the article to be packed by the pressing means, and the bottom panel is dropped into the recess. Then, the flaps formed on the four sides of the bottom panel are erected, and the flaps on one of the four sides facing each other are placed inside by the first pressure roller. The gap formed between the bent portion of the flap and the side of the packaged object is crushed in accordance with the width of the packaged object. Thereafter, the other two sides of the flaps are folded inward by the second pressure roller, and the flaps are overlapped with each other to wrap the article to be packed.

  According to a fifth invention, in the fourth invention, the first pressure-developing roller has a flange portion on the outside for crushing a gap formed between the flaps on the two sides and the article to be packed from above, It has a taper-shaped pressing part for pressing the flap from above on the inner side, and is further formed of an elastic material as a whole.

  In such a configuration, the flange formed on the first pressure-rolling roller formed of an elastic material has a gap formed between the two opposite flaps of the packing sheet and the object to be packed upward. Then, the flap is folded to the upper surface of the object to be packed by pressing the flap from above with a taper-shaped pressing portion provided inside the pressure-rolling roller.

  A sixth invention is the fourth or fifth invention, wherein the flaps on the other two sides are pressed inward to each other adjacent to the first pressure-developing roller, and the inclination angles of the two flaps are maintained. A presser bar is provided for guiding the second expansion roller to a standby position in the state.

  In such a configuration, the presser bar disposed adjacent to the first pressure-developing roller presses the flaps on the other two sides inward and maintains the inclination angle of both flaps. To guide the second spreading roller to the standby position.

  According to the present invention, since the article to be packed is automatically packed only by placing the article to be packed on the bottom panel of the packing sheet, it is possible to realize the efficiency of the packing work and the labor cost. Can be reduced. In addition, the two flaps facing each other are folded inward, and the gap formed between the folded portion of the flap and the side of the package is crushed according to the width of the package. By this, it is possible to prevent the packed object from moving in the packing sheet in the packed state.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 shows an overall configuration diagram of the automatic packing apparatus. From the upstream side of the line, the automatic packing apparatus includes a sheet stacking part A, an article input part B, a first transfer part C, a first folding part D, a second feeding part E, and a second folding part F. The unloading part G is configured.

  The sheet stacking part A holds a corrugated sheet 2 as an example of a packing sheet on the table 1 in a stacked state, and the corrugated sheet 2 laminated by a plurality of stacking guides 3 is restricted from moving in the horizontal direction. Has been. As shown in FIG. 2, the corrugated cardboard sheet 2 is composed of a bottom panel 2a and flaps 2b to 2e provided on four sides of the bottom panel 2a. In the following description, for convenience, the flaps 2b, 2c on the transfer direction side of the corrugated cardboard sheet 2 are referred to as the front flap 2b and the rear flap 2c, and the flaps 2d, 2e on the side orthogonal to the transfer direction are referred to as the left flap 2d, This is called the right flap 2e.

  As shown in FIG. 3, a pair of payout belts 5 are disposed on the lower surface of the table 1 located in the sheet stacking portion A with a predetermined interval. Both of the payout belts 5 are for pushing the lowermost corrugated cardboard sheet 2 to the next article to be packed B, and are continuously connected to a motor and rotated at a constant speed. A belt pressing elevating roller 6 is disposed on the inner peripheral surface of the two payout belts 5. The belt pressing elevating roller 6 is connected to an elevating cylinder 7 and is movable up and down. When the belt pressing elevating roller 6 rises, the payout belt 5 is pushed up, and the payout belt 5 is brought into contact with the bottom surface of the lowermost corrugated cardboard sheet 2 to be pushed out to the next packaged article input portion B side.

  Although not shown, a partition plate that allows only the lowermost corrugated cardboard sheet 2 to pass therethrough is disposed at the exit of the corrugated cardboard sheet 2 held by the plurality of stacking guides 3. Each stacking guide 3 is erected on the table 1 so as to be movable in the horizontal direction, and its position can be adjusted in accordance with the size of the corrugated cardboard sheets 2 to be stacked.

  Further, as shown in FIGS. 1 to 3, a pair of pinch rollers 8 are arranged in the pushing direction of the sheet stacking portion A. Further, the leading end side of each payout belt 5 is opposed to each pinch roller 8. Each pinch roller 8 sandwiches the front flap 2b of the extruded corrugated cardboard sheet 2 with each of the payout belts 5 and assists the payout by the payout belts 5.

  As shown in FIGS. 1, 4, and 5, the package input unit B has a pair of cardboard positioning claws 9 that are movable along the direction in which the cardboard sheet 2 is discharged on the sheet stacking unit A side. A guide rail 10 to be slid is formed. The cardboard positioning claw 9 is hooked on the rear ends of the left and right flaps 2d, 2e of the cardboard sheet 2 and pushes the cardboard sheet 2 to the packaged material loading position B ', and is connected to a claw cylinder (not shown). The guide rail 10 is reciprocated.

  Further, as shown by a two-dot chain line in FIG. 6, the cardboard positioning claw 9 is tilted forward, and normally, as shown by a solid line in FIG. The upright state is maintained. Accordingly, when the cardboard positioning claw 9 is pressed against the front ends of the left and right flaps 2d and 2e, the cardboard positioning claw 9 is tilted forward and allows the cardboard sheet 2 to pass therethrough. On the other hand, when the rear ends of the left and right flaps 2d and 2e pass through the cardboard positioning claws 9, they are erected by the urging force of the return spring and are opposed to the rear ends of the left and right flaps 2d and 2e. By the operation, the rear ends of the left and right flaps 2d, 2e are pressed, and the corrugated board sheet 2 is pushed into the packaged object insertion position B ′.

  As shown in FIG. 4, positioning pieces 11 for positioning the four corners of the corrugated cardboard sheet 2 are arranged at the packaged material input position B ′. Each positioning piece 11 can be moved up and down by an elevating cylinder 12 disposed at the lower part of the table 1. When the cardboard sheet 2 is carried in, each positioning piece 11 is immersed in the table 1. The Then, when the cardboard sheet 2 is set at the packaged material input position B ′, the cardboard sheet 2 is raised and the four corners of the cardboard sheet 2 are positioned.

  As shown in FIG. 8, each positioning piece 11 has a stepped portion 11a. The step portion 11a is formed for positioning according to the size of the cardboard sheet 2 to be carried in. Even if the size of the cardboard sheet 2 is switched, one type of the step portion 11a is formed. This can be handled by the positioning piece 11. In the figure, the step portion 11a is adapted to correspond to only one place, that is, two types of corrugated cardboard sheets 2. However, by providing the step portion 11a with a plurality of steps, three or more sizes can be used. It can be made to correspond to a corrugated cardboard sheet.

  The packed object 13 to be loaded at the packed object loading position B ′ is, for example, a book, a video cassette, a case-containing DVD (Digital Versatile Disk) or CD-ROM, or assorted canned or ham accommodated in a cosmetic box. The operator 14 throws it on the bottom panel 2a of the cardboard sheet 2.

  The operator performs the loading operation of the article to be packed 13 on the near side in front of FIG. 4, and the back side positioning guide member 15 is disposed on the back side of the to-be-packaged object loading position B ′. The back side positioning guide member 15 is connected to the guide cylinder 16 and retracts when the corrugated cardboard sheet 2 is loaded into the packaged material loading position B ′ or unloaded from the packaged material loading position B ′. It will be in a refuge state. Then, as shown by a solid line in FIG. 4, the back side of the article to be packed 13 is positioned by projecting when the article to be packed 13 is inserted.

  A delivery switch 17 is disposed on the side of the operator 14 at the package input position B ′. The delivery switch 17 is turned on when the operator 14 completes the loading of the package 13. When the delivery switch 17 is turned on, the elevating cylinder 12 immerses each positioning piece 11 in the table 1. Next, the cardboard positioning claw 9 moves along the guide rail 10 and passes through the first transfer part C in the direction of the first folding part D, and the cardboard sheet 2 on which the article to be packed 13 is placed is 1 is sent to the folding part D side.

  As shown in FIG. 5, an automatic tape attaching part 19 for attaching an adhesive tape 18 such as a gum tape or a kraft tape is provided in an area where the end of the right flap 2e of the corrugated cardboard sheet 2 passes through the first transfer part C. It has been. As shown in FIGS. 9 and 12, the automatic tape applying portion 19 is provided with a tape pinch roller 20 and a pressing plate 21. Reference numeral 22 denotes a tape roll 22 around which the adhesive tape 18 is wound, and the adhesive tape 18 is supplied to the supply port in a state where an appropriate tension is applied via a tape supply device (not shown).

  When the cardboard sheet 2 passes through the first transfer part C, the adhesive tape 18 is affixed to the end face of the right flap 2e, and the adhesive tape 18 is reliably pressed against the end face of the right flap 2e by the pressing plate 21. It is done. Although not shown, the automatic tape applying part 19 is provided with a tape cutting part. After the rear end of the right flap 2e passes through the automatic tape applying part 19, the adhesive tape is cut at a predetermined length. The

  The adhesive tape 18 maintains the state in which the right flap 2e and the left flap 2d are folded and overlapped with each other. As shown in FIG. 12, approximately half of the width direction of the adhesive tape 18 is about the right flap 2e. It is pasted in a state protruding from the end face.

  Further, as shown by a one-dot chain line in FIG. 10, the folding slider 23 is on standby in the first folding part D. The folding slider 23 is formed in a box shape, and a base plate 24 is disposed in a recess 23a formed inside. The recess 23a is formed slightly larger than the bottom panel 2a of the corrugated cardboard sheet 2 and has a shape similar to the bottom panel 2a.

  As shown in FIGS. 13 and 14, the base plate 24 is raised and lowered by a folding slider lifting cylinder 25 interposed between the bottom surface of the folding slider 23. A fork insertion groove 24a into which a fork described later is inserted is formed on the upper surface of the base plate 24 at predetermined intervals. The folding slider 23 is reciprocated from the first folding part D to the second folding part F through the second transfer part E by the operation of a folding slider cylinder (not shown).

  As shown in FIGS. 10 and 13, a beam 26 is disposed above the first folding part D, and a pushing member cylinder 28 and a slide rail cylinder 31 are suspended from the beam 26. ing. A first pusher member 27 is fixed to the lower end of the pusher member cylinder 28, and a slide rail 30 is slidably held on the slide rail cylinder 31 to hold the first pusher slide roller 29 slidably. ing.

  The first pushing member 27 presses the bottom panel 2a of the corrugated cardboard sheet 2 into the recess 23a of the folding slider 23 through the article 13 to be packed, and the pad portion 27a that contacts the article 13 is made of silicone or It is formed of a relatively elastic member such as rubber.

  On the other hand, the slide rail 30 is extended in the moving direction of the cardboard sheet 2, and the first pressing slide roller 29 is attached to the slide rail 30 with the pressing member cylinder 28 in the transfer direction of the cardboard sheet 2. A pair of opposed ones is disposed. As shown in FIG. 17B, each first push slide roller 29 has a pair of first pressure-developing rollers 33 facing each other. Each first pressure spreading roller 33 is formed of an elastic material such as silicone or rubber, and has a flange portion 33a formed on the outer side thereof and a tapered presser portion 33b formed on the inner side thereof. Each first pressure roller 33 bends the front and rear flaps 2b, 2c of the cardboard sheet 2 inward. In addition, by pressing the front and rear flaps 2b and 2c downward at the flange portion 33a, both sides of the front and rear flaps 2b and 2c are deformed, and the gap formed between the sides of the article 13 is crushed, The movement of the article to be packed 13 is restricted.

  As shown in FIGS. 1 and 17, a presser roller cylinder 35 having a pair of presser rollers 34 at the tip is provided at the lower portions on both sides of the table 1 provided in the first folding part D. ing. As shown in FIG. 17B, the presser roller 34 slightly presses the left and right flaps 2d and 2e of the corrugated cardboard sheet 2 to prevent the front and rear flaps 2b and 2c from jumping up.

  As shown in FIGS. 1 and 20, the left and right flaps 2d and 2e which are inclined inward by being pressed inward by the presser roller 34 are held on the left and right sides of the second transfer portion E. In this state, a presser bar 36 that guides the second folding part F is provided. The presser bar 36 extends along the line from the first folding part D to the second folding part F, and is pressed and retracted with respect to the first folding part D by the presser bar cylinder 37. Yes.

  Further, as shown in FIGS. 1 and 21, a pair of fork members 38 are provided on the left and right outer sides of the table 1 in the second folding portion F. Both the fork members 38 can be moved forward and backward with respect to the table 1, and each fork tooth 38 a can be inserted into a fork insertion groove 24 a formed in the base plate 24.

  Furthermore, a pair of opposing second pressure rollers 39 are disposed in the left-right direction above the second folding part F. The second pressure roller 39 presses the left and right flaps 2d and 2e, which are held in an inclined position by the presser bar 36, inwardly to overlap the left and right flaps 2d and 2e and to the right flap 2e. The stuck adhesive tape 18 is pressed against the left flap 2d and stuck, and the left and right flaps 2d, 2e are closed.

  Further, as shown in FIG. 10, a payout guide rail 40 is disposed above the second folding part F along the line. A payout slider 41 connected to a slider cylinder (not shown) is movably suspended from the payout guide rail 40. As shown in FIGS. 1 and 10, a payout lever 42 is supported at the lower end of the payout slider 41. The lower part of the payout lever 42 abuts the rear end of the cardboard sheet 2 that has been packed by the second folding part F in the forward path, and pushes it in the direction of the carry-out part G. When it abuts on the tip of the sheet, it is bent from the payout slider 41, and interference with the cardboard sheet 2 is avoided.

  In addition, the carry-out part G affixes a sticker whose address is specified to the packaged cardboard sheet 2 that has been paid out.

Next, the effect | action of this form by such a structure is demonstrated.
When the operator 14 turns on the feed switch 17, the lifting cylinder 25 disposed at the lower portion of the sheet stacking portion A raises the belt pressing lift roller 6 to push the payout belt 5 upward and stacking. In contact with the bottom surface of the lowermost corrugated cardboard sheet 2 of the corrugated cardboard sheets 2 held in the guide 3, the corrugated cardboard sheet 2 is discharged to the package input part B side. In addition, since the partition plate which can pass only the lowermost corrugated cardboard sheet 2 is arrange | positioned in the discharge port of the corrugated cardboard sheet 2, two or more corrugated cardboard sheets 2 are not discharged.

  The lowermost corrugated cardboard sheet 2 that has been paid out is first squeezed between the front flap 2b by the pinch roller 8 and the payout belt 5 to assist the payout to the packed object input part B side.

  On the other hand, when the corrugated cardboard sheet 2 is sent from the sheet stacking portion A to the package input portion B, each positioning piece 11 disposed in the package input portion B is moved by the operation of the elevating cylinder 12. I am immersed in one.

  Then, while the cardboard sheet 2 is being sent to the packaged article insertion portion B, the cardboard positioning claws 9 disposed on the guide rails 10 provided on both sides of the table 1 are connected to the left and right flaps 2d, 2e, the cardboard positioning claw 9 is slid to the packaged article loading part B side by the operation of the claw cylinder (not shown) to transfer the cardboard sheet 2 to the packaged article loading position B '. .

  When the corrugated cardboard sheet 2 is transferred to the package input position B ′, the positioning pieces 11 protrude from the table 1 to position the four corners of the corrugated cardboard sheet 2. Thereafter, the rear positioning guide member 15 waiting in front of the operator 14 is projected by the operation of the guide cylinder 16. This back side positioning guide member 15 is positioned on the back side of the article 13 to be packed.

  The operator 14 places the article to be packed 13 on the bottom panel 2a of the corrugated cardboard sheet 2 as the back side positioning guide member 15 reference. When the delivery switch 17 is turned on, each positioning piece 11 is immersed in the table 1, and then the corrugated board positioning claws 9 that are in contact with the rear ends of the left and right flaps 2d, 2e of the corrugated cardboard sheet 2 are covered. The cardboard sheet 2 on which the package 13 is placed is transferred in the first folding part D direction.

  When the corrugated cardboard sheet 2 passes through the first transfer section C, the adhesive tape 18 fed out from the automatic tape applying section 19 is applied to the end of the right flap 2e and pressed by the pressing plate 21. It is affixed securely.

  Next, when the cardboard sheet 2 is transferred to the first folding part D, the first pushing member 27 waiting upward is lowered by the operation of the pushing member cylinder 28, and the bottom panel 2 a of the cardboard sheet 2 is moved. Is pushed into the recess 23a of the folding slider 23 waiting downward through the article 13 to be packed. At this time, as shown in FIG. 10, the base plate 24 disposed in the recess 23 a is retracted by the operation of the elevating cylinder 25.

  Accordingly, when the bottom panel 2a of the corrugated cardboard sheet 2 is pushed into the recess 23a by the first pushing member 27, the flaps 2b to 2e formed on the four sides thereof are bent at substantially right angles.

  When the pressing of the corrugated cardboard sheet 2 by the pressing member 17 is completed, the pressing member 17 rises and returns to the standby position.

  Next, the first pushing slide roller 29 waiting upward is lowered by the operation of the slide rail cylinder 31. The first pushing slide roller 29 is supported with respect to the slide rail cylinder 31 via the slide rail 30, and in synchronization with the downward movement of the slide rail cylinder 31, first, as shown in FIG. It moves from the front-rear direction of the pushing slider 23 and pushes the upper portions of the front-rear flaps 2b, 2c inward. Next, as shown in FIG. 15A, the first push-in slide roller 29 is dropped into the recess 23a and moves toward the center in this state.

  Each slide roller 29 is composed of a pair of first pressure-developing rollers 33 facing each other, and each first pressure-developing roller 33 is made of an elastic material. It is possible to wrap the item to be packed 13 with the softness as if folded by hand. In addition, a flange 33a is formed on the outside of each first pressure roller 33, and a pressing portion 33b is formed in a taper shape, so that the front and rear flaps 2b, As shown in FIG. 15 (b), it is formed between the sides of the article to be packed 13 by pushing 2c downward and expanding in the center direction to deform both sides of the front and rear flaps 2b and 2c. The movement of the article 13 can be regulated by crushing the gap. The amount to be crushed is adjusted by the pressing force of the first pressure roller 33 and the hardness of the elastic material.

  As shown in FIGS. 18 and 19, each slide roller 29 can be adjusted in the height direction by adjusting the pressing force of the slide rail cylinder 31 even if the height of the article 13 is different. Is automatically adjusted.

  Immediately after the folding by the slide roller 29 is completed, the first pushing member 27 descends again and presses the front and rear flaps 2b and 2c from above as shown in FIG. Next, the slide roller 29 is raised and returned to the initial position.

  Then, as shown in FIG. 17, the presser roller 34 slightly presses the left and right flaps 2 d and 2 e of the corrugated cardboard sheet 2 from the outside to the inside by the operation of the presser roller cylinder 35. As a result, the front and rear flaps 2b and 2c are pressed by the inner surfaces of the left and right flaps 2d and 2e, so that the front and rear flaps 2b and 2c are not opened even when the first pushing member 27 is raised.

  After that, as shown in FIG. 20, the presser bar 36 waiting upwardly projects by the operation of the presser bar cylinder 37 to press the left and right flaps 2 d and 2 e inward. The presser bar 36 extends along the line from the first folding part D to the second folding part F, and the flaps 2b to 2d do not open when the cardboard sheet 2 is transferred.

  The cardboard sheet 2 is transferred from the first folding part D to the second folding part F through the second feeding part E as the folding slider 23 moves. Then, the base plate 24 immersed in the recess 23 a of the folding slider 23 is raised by the operation of the elevating cylinder 25, and the upper surface thereof is almost at the same position as the upper end of the folding slider 23.

  Thereafter, the pair of fork members 38 waiting on the left and right sides of the line slide toward the center of the line, and the fork teeth 38a formed on each fork member 38 are formed in the fork insertion groove formed on the base plate 24. It is inserted into 24a and the packed cardboard sheet 2 is received. Then, the folding slider 23 returns to the first folding part D side, and the second pressure roller 39 from both sides of the line moves toward the center, and the posture inclined by the presser bar 36 is maintained. The left and right flaps 2d, 2e are pressed inward to superimpose the left and right flaps 2d, 2e, and the adhesive tape 18 attached to the right flap 2e is pressed against the left flap 2d and attached to the left and right flaps 2d, 2e. Is adhered via an adhesive tape 18.

  After that, a slider cylinder (not shown) is operated, and the payout slider 41 supported by the payout guide rail 40 is smoothed. The cardboard sheet 2 is pushed out toward the carry-out part G in contact with the rear end. In the return path, when the payout lever 42 is brought into contact with the corrugated cardboard sheet 2, the upper end of the payout lever 42 is bent from the payout slider 41, so that interference with the corrugated cardboard sheet 2 is avoided.

  Then, another worker or the like affixes a seal with the address specified to the corrugated cardboard sheet 2 that has been paid out to the carry-out part G and completes the packing operation.

Overall configuration of automatic packing equipment Plan view of sheet stacking section Side view of sheet stacking section Plan view of the part to be packed Plan view of another state of the part to be packed Schematic side view of the main part of the part to be packed Schematic side view of the part to be packed Perspective view of positioning piece Schematic side of the first transfer section Schematic side view of the first folding part, the second transfer part, and the second folding part Schematic front view of the first folding part Plan view of the first folding part Schematic side view of the first folding part Main part schematic side view of the first folding part (A) is a principal part schematic side view of the 1st folding part of another state, (b) is a rear view of (a). (A) is a principal part schematic side view of the 1st folding part of another state, (b) is a rear view of (a). (A) is a principal part schematic side view of the 1st folding part of another state, (b) is a rear view of (a). (A) is the principal part schematic side view of the 1st folding part of another state in another state, (b) is the rear view of (a). A rear view corresponding to FIG. 15B according to another aspect. A rear view corresponding to FIG. 15B according to another aspect. Plan view of the second folding part

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Table 2 Corrugated cardboard sheet 2a Bottom panel 2b Front flap 2c Rear flap 2d Left flap 2e Right flap 3 Stacking guide 5 Discharge belt 6 Belt pressing lift roller 7 Lifting cylinder 8 Pinch roller 9 Corrugated cardboard nail 10 Guide rail 10a Step Numeral 11 Positioning piece 12 Lifting cylinder 13 Packaged object 14 Worker 15 Guide member 16 Guide cylinder 17 Feeding switch 18 Adhesive tape 19 Automatic tape attaching part 20 Tape pinch roller 21 Pressing plate 22 Tape roll 23 Folding slider 23a Recessed part 24 Base plate 24a Groove for fork insertion 25 Elevating cylinder for folding slider 26 Beam 27 First pushing member 27
27a Pad portion 28 Cylinder for pressing member 29 Slide roller 30 Slide rail 31 Cylinder for slide rail 33 First pressure roller 33a Flange portion 33b Presser portion 34 Presser roller 35 Roller cylinder 36 Presser rod 37 Presser rod cylinder 38 Fork member 38a Each fork tooth 39 Expanding pressure roller 40 Discharge guide rail 41 Discharge slider 42 Discharge lever A Sheet stacking section B Packaged article input part B 'Packaged object input position C First transfer part D First folding part E 2nd transfer part F 2nd insertion part G Unloading part

Claims (6)

In an automatic packaging method for packaging an article to be packed against a packing sheet having a bottom panel for placing the article to be packed and a flap provided on four sides of the bottom panel,
After placing the object to be packed on the bottom panel, a first step of standing up four sides;
Of the four side flaps described above, a second side flap is folded inward and the gap formed between the one side flap and the packaged object is crushed. Process,
And a third step of folding the other two side flaps inward and overlapping each other, and an automatic packing method.   In the second step, a flange portion that crushes a gap formed between the flaps on the two sides and the article to be packed from above, and a tapered pressing portion that holds the flap from above on the inside thereof. The automatic packing method according to claim 1, wherein the automatic packing method is carried out using a pressure-rolling roller formed entirely of an elastic material.   Between the second step and the third step, the other two side flaps are folded inward by the presser bar extending in the conveying direction of the packing sheet. 3. The automatic packing method according to claim 1, further comprising a second ′ step of transferring the first to the third step while maintaining the inclination angle. 4. A packing sheet having a bottom panel for placing an object to be packed and flaps provided on four sides of the bottom panel;
A transfer means for transferring the packing sheet on which the article to be packed is placed onto a table having a concave portion along the four sides of the bottom panel;
A pressing means for dropping the bottom panel from above through the packaged object into the recess and standing up the four side flaps;
Among the four side flaps, the two opposite side flaps are folded inward, and a gap formed between the folded portion of the flap and the side of the packaged object is defined as a packaged object. A first pressure roller that crushes to match the width of
An automatic packing device comprising: a second pressure roller that bends the other two side flaps inward and superimposes the flaps on each other.   The first spreading roller has a flange portion on the outside for crushing a gap formed between the flaps on the two sides and the article to be packed from above, and has a tapered shape for pressing the flap from above on the inside. The automatic packing apparatus according to claim 4, further comprising an elastic material.   Adjacent to the first pressure roller, the second pressure roller waits in a state in which the other two side flaps are pressed inward and the inclination angle of both flaps is maintained. 6. The automatic packing apparatus according to claim 4, further comprising a presser bar that guides to a position.

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