JP2010125720A - Automatic bottom sealing apparatus for corrugated cardboard - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an automatic bottom sealing apparatus for a corrugated cardboard, in which an installation area is reduced and in which high speed is attained in the bottom sealing speed. <P>SOLUTION: The automatic bottom sealing apparatus for the corrugated cardboard includes: suction cups 2 that are supported on an intermittently driven turntable 1 and that advance to the outside of the turntable 1 to adsorb one side face Da of the body part of a sheet-like corrugated cardboard D; a spreading guide 4 that is also supported on the turntable 1 and that spreads open the sheet-like corrugated cardboard D in a cylindrical shape by coming in contact with the side face Db adjacent to the side face Da of the sheet-like corrugated cardboard D concurrently with the return of the advanced suction cups 2; and a bottom sealing mechanism Q and a bottom pressing mechanism P that are successively installed in the transporting route of the spread-open corrugated cardboard D1 in accordance with the intermittent turning of the turntable 1. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a corrugated cardboard automatic bottom pasting device that spreads a folded sheet-like cardboard into a cylindrical shape, then folds the bottom flap and simultaneously pastes and sticks it, and supplies the product to an automatic boxing device for goods. About.

Conventionally, as an automatic bottom pasting machine for corrugated cardboard, for example, an apparatus for expanding and supplying corrugated cardboard in an automatic bottom pasting machine (refer to Japanese Utility Model Publication No. 51-38568), a flap folding device inside a bottom portion of a cardboard case (Japanese Utility Model Publication No. 49-38500). An automatic press device (see Japanese Patent Publication No. 51-34353) for a sticking part in an automatic bottom sticking machine for corrugated cardboard is provided.
Japanese Utility Model Publication No. 51-38568 Japanese Utility Model Publication No. 49-38500 The conventional automatic cardboard bottom pasting machine has a configuration in which the steps for bottom pasting are arranged in a straight line. That is, the process of expanding the folded sheet-like cardboard into a cylindrical shape, the process of folding the bottom flap and simultaneously gluing and sticking, and the process of supplying the product to an automatic boxing device etc. are each linear. It was the configuration arranged in.

  Therefore, the installation area becomes long and the installation location may be limited in the factory, and the line configuration may be difficult in relation to the subsequent automatic boxing device for goods. Furthermore, it is necessary to adjust the processing time between the respective steps, and there is a limit to speeding up the bottom attachment.

  In view of the above circumstances, an object of the present invention is to provide an automatic bottom sticking device for corrugated cardboard which saves space on the ground contact area and further increases the bottom sticking speed.

  In order to achieve the above object, an automatic bottom sticking device for corrugated cardboard according to the present invention is supported by a turntable that rotates intermittently, advances to the outside of the turntable, and is attracted to one side surface of a body of a sheet-like cardboard. The sheet-like cardboard is expanded into a cylindrical shape in contact with the side surface of the barrel adjacent to the one side surface of the sheet-like cardboard in accordance with the return of the sucker and the suction cup supported by the turntable and advanced. An expansion guide that opens, and a bottom pasting mechanism and a bottom press mechanism that are sequentially provided in a transfer path of the expanded cardboard that accompanies intermittent rotation of the turntable (claim 1).

  According to the said structure, the length of an apparatus is shortened and the whole becomes compact, and space saving of an installation area can be achieved. Further, since the sheet-like cardboard can be sequentially supplied to the next process while being expanded into a cylindrical shape, the bottom pasting operation can be speeded up.

  One embodiment of the present invention is characterized in that a plurality of suction cups and spreading guides are provided around the turntable (claim 2). According to this embodiment, the bottom pasting operation is performed continuously and at high speed.

  According to the apparatus of the present invention, it is possible to save the installation area and to increase the speed of bottom pasting.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings. The bottom of the cardboard is pasted as shown in FIGS. The sheet-like cardboard D is expanded (Fig. B), the front and rear flaps b, c of the expanded cardboard D are folded and glued a on the bottom (Fig. C), and both bottom flaps This is done by folding d and e (Fig. 2D).

  Next, an example of the layout of the automatic cardboard bottom pasting apparatus of the present invention will be described.

  In FIG. 1, M is a magazine portion of a sheet-like cardboard D, and S is an automatic bottom pasting device for cardboard according to the present invention.

  First, an example of an apparatus for supplying the sheet-like cardboard D in the magazine part M to the automatic cardboard bottom pasting apparatus S will be described. In the magazine portion M, a large number of sheet-like cardboards D raised by an appropriate method are accumulated.

  In the figure, reference numeral 20 denotes a suction cup which advances and adsorbs to one sheet-like cardboard D accumulated in the magazine portion M and then returns to draw out the sheet-like cardboard D to a conveyance path 21 which will be described later.

  Reference numeral 21 denotes a conveyance path which is constituted by a belt or a chain conveyor and transfers the sheet-like cardboard D in an upright state drawn out by the suction cup 20 to the automatic cardboard pasting apparatus S of the present invention.

  Reference numeral 22 denotes a pusher for supplying the sheet-like cardboard D supplied to the end portion of the conveyance path 21 to the automatic bottom sticking device S for cardboard of the present invention. The suction cup 20 part, the conveyance path 21 part, and the pusher 22 part may have a conventionally known configuration.

  Next, the details of the automatic bottom pasting device S for corrugated cardboard of the present invention will be described. 1 is a turntable that is intermittently driven by a motor or the like (not shown), and 2 is a sheet-like cardboard D that is supported by the turntable 1 and advances to the outside of the turntable 1 and is supplied to the end portion of the conveyance path 21. It is a suction cup adsorbed on one side surface Da. The pusher 22 is advanced when the sheet-like cardboard D is adsorbed by the suction cup 2.

  In the embodiment of the drawings, the suction cup 2 is advanced and then returned by the air cylinder 3, but other means may be used.

  4 is in contact with the side surface Db adjacent to the one side surface Da of the sheet-like cardboard D adsorbed to the suction cup 2 in accordance with the return of the suction cup 2 supported by the turntable 1 and advanced. An expansion guide for expanding the sheet-like cardboard D into a cylindrical shape.

  The expansion guide 4 is made of an appropriate material such as a plate shape or a rod shape, and is predetermined in advance so that the sheet-like cardboard D adsorbed on the suction cup 2 is expanded in a cylindrical shape when the suction cup 2 is returned. It is bent at an angle of

  In the embodiment of the drawings, a plurality of the suction cups 2, the expansion guides 4 and the air cylinders 3 are provided on the turntable 1 at a predetermined angle so as to increase the speed of bottom bonding.

  Further, a bottom pasting mechanism Q and a bottom press mechanism P are sequentially provided on the moving path of the corrugated cardboard D <b> 1 that is expanded in the cylindrical shape as the turntable 1 rotates.

  The bottom pasting mechanism Q folds the front and rear flaps b and c at the bottom of the corrugated cardboard D1 expanded as shown in FIG. 4 (c) and pastes a on the bottom of the flaps. This is done by folding. One example thereof is disclosed in Patent Document 2 (Japanese Utility Model Publication No. 49-38500, FIG. 3C).

  For example, as shown in FIG. 2, the folding of the front flap b at the bottom of the expanded cardboard D1 is a rounded surface that folds the front flap b provided in the moving path of the expanded cardboard D1. A folding guide 6 that is automatically performed in accordance with the transfer of the expanded cardboard D1 by the fixed guide 5 having the folding mechanism, and the folding of the rear flap c at the bottom portion is performed from the rear of the rear flap c at the bottom portion in a timely manner. Is going by. But it is not limited to the said structure, You may carry out by another means.

  In the figure, 7 is a paste (hot melt) supply nozzle. That is, the adhesive paste is supplied from the paste supply nozzle 7 to the bottom surfaces of the front and rear flaps b and c at the folded bottom, and then the both side flaps d and e at the bottom are folded. One example thereof is disclosed in the above-mentioned Patent Documents 1 (Japanese Utility Model Publication No. 51-38568, FIG. 5) and 3 (Japanese Patent Publication No. 51-34353, FIG. 4).

  For example, as shown in FIG. 3, the folding cams 9 and 9 can be rotated inward by the groove cam 8 to fold the flaps d and e on both sides of the bottom. In addition, a rod-shaped guide can be provided in the transfer path of the cardboard D, and the flaps d and e on both sides of the bottom can be gradually converged and folded by the rod-shaped guide.

  Next, the bottom press mechanism P will be described. The bottom press mechanism P is a mechanism that presses and presses the portion where both side flaps d and e of the bottom portion are folded and bonded to the front and rear flaps b and c. No. 34343, FIG. 6).

  That is, it is known that the bottom surface of the corrugated cardboard D2 after the folding of the both side flaps d and e at the bottom is supported by the press table, and the press plate is lowered from above the corrugated cardboard D2 to the inside by an air cylinder or the like. It is done by the method. The press plate is automatically raised and returned after securing the pressing time.

  Prior to pressing the bottom part, it is preferable to check whether the corrugated board D2 has both sides of the corrugated board D2 with a straightening arm and whether the flaps of the bottom part and the bottom part are correctly folded.

  Next, the corrugated cardboard D3 for which the bottom press has been completed is released from the suction of the suction cup 1 on the discharge conveyor 10 provided in advance, and is transferred to the automatic boxing process or the like by the conveyor 10 or the like.

  As described above, in the present invention, one sheet-like cardboard D is drawn from the magazine portion M to the transport path 21 by the suction cup 20 and transported through the transport path 21, and the pusher 22 advances and exits at the end of the transport path 21. The sheet-like cardboard is transferred to the suction cup 2 supported by the turntable 1 by the suction action of the suction cup 2.

  Thereafter, the air cylinder 3 is contracted along with the intermittent rotation of the turntable 1, and the suction cup 2 and the sheet-like cardboard D adsorbed to the suction cup 2 are returned to the turntable side.

  With the return of the suction cup 2 and the sheet-like cardboard D adsorbed by the suction cup 2, the side face Db of the sheet-like cardboard D comes into contact with the spreading guide 4, and the spreading of the sheet-like cardboard D is started. When the air cylinder 3 is expanded, the contraction of the air cylinder 3 is stopped.

  At the same time, the front and rear flaps b and c are folded at the intermittent stop position of the turntable 1, and the bottom of the front and rear flaps b and c at the bottom is passed from the glue supply nozzle 7 on the way to the next intermittent stop position. Adhesive paste is supplied, and the flaps d and e at the bottom are folded onto the bottom surfaces of the front and rear flaps b and c at the intermittent stop position thereafter.

  Subsequently, the turntable 1 is intermittently rotated, and at the next intermittent stop position, the press plate is lowered inside the corrugated cardboard D2 in which the both side flaps d and e are folded, and the front and rear flaps of the bottom portion. b and c and both side flaps d and e are pressed. Further, after the pressing by the press plate 11 is continued until the next intermittent rotation stop position, the press plate is raised and returned.

  As described above, the corrugated board D3 whose bottom press has been completed is released from the suction by the suction cup 2 at the next intermittent stop position and is supplied to the next process by the conveyor 10 or the like.

1 shows an embodiment of the present invention, and is a layout plan view of a cardboard automatic bottom pasting device of the present invention. FIG. It is a side view which shows an example of a bottom sticking mechanism. It is a front view which shows an example of the folding apparatus of the both-sides flap of a bottom part. It is a perspective view which shows the bottom sticking process of a sheet-like cardboard.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Turntable 2 Suction cup 4 Expansion guide D Sheet-shaped cardboard Q Bottom sticking mechanism P Press mechanism

Claims (2)

A suction cup that is supported by a turntable that rotates intermittently and advances to the outside of the turntable and sucks to one side of the body of the sheet-like cardboard, and a suction cup that is also supported by the turntable and advances In addition, the sheet-like corrugated cardboard is in contact with the side surface adjacent to the one side surface, and the sheet-shaped corrugated cardboard is spread out in a tubular shape, and the turntable is expanded in the tubular shape as the turntable intermittently rotates. A corrugated cardboard automatic bottom pasting device comprising: a bottoming mechanism and a bottom press mechanism sequentially provided in the corrugated cardboard transfer path. The cardboard automatic bottom pasting device according to claim 1, wherein a plurality of the suction cups and the spreading guides are provided around the turntable.

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