JPS6111783B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention is a novel cushioning sheet material for packaging that is used for multiple purposes as a packaging material, that is, an economical material made of a corrugated sheet with several strips of tape attached to one side. The present invention relates to a manufacturing device for a material-type shock absorbing sheet material.

As is well known, various types of corrugated cardboard materials have been developed, such as corrugated cardboard materials made by pasting flat sheets on both the front and back sides of a corrugated sheet, and single corrugated cardboard materials made by pasting flat sheets entirely on one side of a corrugated sheet. and is already well known. Regarding such conventional corrugated cardboard materials and single corrugated cardboard materials, depending on the purpose of use,
Furthermore, it is desired to save resources on the materials used.

Therefore, in order to meet the above-mentioned needs, the present inventor has developed a packaging sheet material that has the desired durability depending on the purpose of use, and that is superior to corrugated cardboard sheets or single-sided corrugated cardboard sheets that are fully adhesive. We started developing a cushioning sheet material for packaging that can reduce material costs, developed a cushioning sheet material for packaging with a new configuration that fully satisfies the above objectives, and developed a manufacturing method for manufacturing this cushioning sheet material for packaging. He came up with a device.

An object of the present invention is to provide a simple structure for continuously and efficiently manufacturing the cushioning sheet material for packaging in the production of a cushioning sheet material for packaging that is capital-saving and economically efficient. It is intended for a series of mechanical devices. The mechanical device of the present invention is capable of vertically pasting a continuous corrugated sheet along one side of the sheet in a direction across the waves and in a direction perpendicular to the direction without requiring a special timing mechanism or the like. It is an object of the present invention to provide a manufacturing apparatus that is suitable for manufacturing cushioning sheet materials for packaging having a structure in which tapes and horizontally pasted tapes are bonded together, and that is suitable for simplifying machine operations and machine repairs in the manufacturing work. That is, the present invention exclusively applies a narrow tape-like member (flat tape or single corrugated cardboard) to one side of a continuous corrugated sheet in a direction that traverses the waves of the corrugated sheet and in a direction perpendicular to this direction. This is for manufacturing cushioning sheet materials for packaging by continuously pasting (tape) on one side of the corrugated sheet being conveyed through various mechanisms in the manufacturing equipment. The configuration is as follows. The cushioning sheet material for packaging formed by the apparatus of this invention has a tape member only on one side of the corrugated sheet. When wrapped, the vertical and horizontal tapes are taut and firmly adhere to the packaged item, making the wrapping process easier. In addition, since this cushioning sheet material has a corrugated sheet on its outer surface, it forms an appropriate cushion layer around the packaged items, and in situations where packaged items are stacked, the completely corrugated sheet surface on the outer surface acts as a slip prevention between the packages.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a manufacturing apparatus for packaging cushioning sheet materials according to the present invention will be described in detail based on specific embodiments shown in the drawings.

A manufacturing apparatus 1 for manufacturing a cushioning sheet material for packaging according to the present invention includes a corrugated sheet forming mechanism 2 that corrugates continuous paper for corrugated sheets and sends them out, and a corrugated sheet forming mechanism 2 that forms continuous paper for corrugated sheets in a corrugated manner and sends out the corrugated sheets. Vertical tape supplying and pasting mechanism 3 that supplies and sticks several strips of vertically pasted tape
and a horizontal tape supplying and pasting mechanism 4 for supplying and pasting the horizontal tape at predetermined intervals perpendicularly to one surface of the corrugated sheet in the length direction.

First, the corrugated sheet forming mechanism 2 includes a corrugated sheet base paper supply source 5 and a corrugated sheet forming means 6 for forming the corrugated sheet base paper into a corrugated sheet. The base paper supply source 5 for corrugated sheets is a continuous paper 8 for corrugated sheets supported on a suitable rotating shaft 7.
It is set to unwind in a certain direction. The corrugated sheet forming means 6 comprises a pair of meshing rolls 9 and 10 suitable for corrugating the continuous paper 8 for corrugated sheets with regular transverse waveforms, and the corrugation is formed between the pair of meshing rolls 9 and 10. In the process of passing the continuous sheet paper 8, a transversely corrugated sheet 11 is formed. The pair of meshing rolls 9, 1
0 is provided with uneven strips 12 and 13 in a direction parallel to the axis, and is arranged so as to mesh with a predetermined gap in relation to the continuous paper 8 to be processed. Both of the meshing rolls 9 and 10 are heated and energized by appropriate heat source means (not shown) in order to more effectively corrugate the continuous paper 8. The corrugated sheet 11 introduced between the meshing rolls 9 and 10 and subjected to transverse wave formation is guided in a fixed direction by a suitable conveying means 15 forming one conveying path 14.

Next, the vertically pasted tape supply and stick mechanism 3 is constituted by a vertically pasted tape supply source 16, a gluing mechanism 17, and a guide roll 18. The vertically pasted tape supply source 16 is made up of a vertically pasted continuous tape 20 supported by a rotating shaft 19, and is arranged so as to be fed out onto one surface 11a of the corrugated sheet 11. The continuous tape 20 for vertical application is supported, for example, on one rotating shaft 19 in a plurality of rows at predetermined intervals.
It is designed to be sent out parallel to the top. The continuous tape 20 for vertical application is made by cutting a flat tape 20A applied to the apparatus of the embodiment shown in FIG. The single corrugated cardboard tape 20B applied to the embodiment shown in FIG. 2 may be used. This continuous tape 20A for vertical application is applied to one of the corrugated sheets 11 by a guide roll 18 which is arranged to face the outer peripheral surface of one of the pair of meshing rolls 9 and 10. It is configured to be guided so as to be in contact with the surface 11a. The continuous tape 20 for vertical application is a single corrugated cardboard tape 20
In case B, the corrugated side 20b of the single corrugated cardboard tape is guided by the guide roll so as to match the corrugated surface of the corrugated sheet. The guide roll 18, like the pair of meshing rolls 9 and 10, is heated and biased by an appropriate heat source means (not shown).
The continuous tape 20A for vertical application is configured such that glue is applied to the joint surface side 20a with respect to the corrugated sheet 11 by a gluing mechanism 17 provided in front of the guide roll 18. The gluing mechanism 17 is
A tank 22 containing the glue 21, a glue pulling roll 23 immersed and rotating in the glue tank 22, and one side 20 of the vertical pasting continuous tape 20A that is in contact with the pulling roll 23.
a and a transfer roll 24 for transferring the glue 21 to the tape surface 20a. When the longitudinally pasted continuous tape is a single-corrugated cardboard tape 20B, the gluing mechanism 17 includes the pulling roll and the transfer roll formed by a pair of meshing rolls 23' and 24' as shown in FIG. Gluing can be applied to the entire corrugated outer surface of the single corrugated cardboard tape along the corrugated surface. In the figure, 25 is a group of guide rolls that change the traveling direction of the continuous tape 20 for vertical application. The continuous tape 20A or 20B for vertical application pasted by the pasting mechanism 17 is guided by the guide roll 18 so as to come into contact with one surface 11a of the corrugated sheet 11. It is applied to the corrugated sheet 11 by the cooperation of the rolls 10. By using the apparatus having the above-mentioned configuration, a continuous packaging buffer is formed by pasting a longitudinally applied tape 20A or 20B on one surface 11a of the transversely corrugated sheet 11 in a direction that traverses the waves of the corrugated sheet. A sheet material 26 is formed;
It is guided along the feed path 14.

Further, in relation to the feed path 14, a horizontal tape supply and adhesion mechanism 4 is provided. The horizontal pasting tape supply and pasting mechanism 4 includes a horizontal pasting continuous paper supply source 29 which is configured by winding a vertical pasting continuous paper 27 and supporting it on a rotating shaft 28, and a horizontal pasting continuous paper supply source 29 configured to roll the horizontal pasting continuous paper 27 and supporting it on a rotating shaft 28, horizontally pasting tape 3 along the width direction at predetermined intervals.
It is composed of a continuous paper cutting mechanism 31 for cutting into zero shapes, a suction drum mechanism 32 for sucking and supporting the horizontal pasting tape 30 and transporting and supplying it to the pasting position, and a gluing mechanism 33. Ru. The horizontal pasting continuous paper 27 may be either a flat continuous paper 27A or a single corrugated continuous paper 27B having waves that match the waves of the corrugated sheet 11 in the length direction. The suction drum 32 has an outer peripheral surface 3
2a is arranged so as to be close to or in contact with the upper surface 26a of the sheet material 26 guided along the feeding path 14, and a back-up roll 34 is followed on the opposite side with the sheet material 26 interposed therebetween. The suction drum 32 has a large number of through hole rows 3 that open toward the outer peripheral surface at equal angular intervals.
5 and, according to rotation, its first angular position P
1 to a second angular position P2 in contact with the sheet material 26, the other end side 36 of the through hole row 35 is communicated with suction/exhaust means (not shown), and immediately after the second angular position P2, a large It has a mechanism to open to atmospheric pressure. Furthermore, this suction drum 32
A specific example will be explained with reference to FIGS. 5 to 7. FIG. 6 is a side sectional view of the suction drum 32. Rotating main body portion 37 of suction drum 32
is a pair of shaft portions 38, 3 extending at both ends in the axial direction.
9, it is rotatably supported by a pair of bearing frames 40, 41. A gear 42 is provided on one of the shaft portions 38, and is conductively connected to a gear of a drive source 43 in a speed reduction relationship. Channel grooves 44 extending in the generatrix direction are provided at equal angular intervals on the outer circumferential surface 37a of the rotating main body 37 of the suction drum. In contrast, a through hole forming plate body 46 is attached. The top surface 46a of the through-hole forming plate body 46 slightly protrudes radially outward from the outer circumferential surface 37a of the suction drum body 37. Further, the through hole forming plate body 46 is provided with a plurality of through holes 35 at appropriate intervals. On the other hand, disk plates 49 and 50 are attached to both end surfaces 47 and 48 of the rotating main body 37 of the suction drum. One disk plate 49 is fixed to one end surface 47 of the rotating body 37 of the suction drum, and closes one end of each channel groove 44 provided in the rotating body 37 of the suction drum. The other disk plate 50 is connected to the other end surface 48 of the suction drum rotating body 37.
It has holes 51 corresponding to the respective channel grooves 44 provided in the suction drum rotating body 37. On the other hand, 52 is a fixed disk fixed to the bearing frame 41 by a pin 53. The fixed disk 52 has an inner end surface 52a that matches the outer end surface 50a of the disk plate 50. An arcuate passage groove 54 is provided on the inner end surface 52a of the fixed disk 52 at a position corresponding to the channel groove 44 from the first angular position P1 to the second angular position P2. The passage groove 54 is communicated with suction/exhaust means (not shown) via a suitable passage forming pipe 55. Furthermore, a fixed disk 52 is located immediately after the second angular position P2 of the fixed disk 52.
A hole 56 passing through the channel groove 4 is provided.
4 to the atmosphere. 57
, the fixed disk 52 is attached to the disk plate 5.
This is a spring that presses toward the 0 side. 58 is
This is a circumferential groove for a round belt, and as shown in the figure, several round belts 59 are stretched across it. This round belt 5
Reference numeral 9 is provided for the purpose of more effectively releasing the adsorbed matter brought to the second angular position from the suction drum surface as the suction drum rotates.

To the suction drum 32 having the above configuration, the horizontal pasting continuous paper 27 is fed along the tangential direction toward the first angular position P1 of the suction drum. When the continuous paper 27 for horizontal pasting is supplied to the first angular position P1 of the suction drum 32, it is processed across the paper into the form of a horizontal pasting tape 30 by the cutting mechanism 31. The cutting mechanism 31 includes, for example, a rotating perforation cutter 61 having a row of blades 60 on each generating line at equal angular intervals, a rotating die 62 paired with the cutter 61, a receiving member 63, a holding member 64, It is configured in combination with a pinch roller 65 provided so as to be in contact with the outer peripheral surface of the suction drum 32 at the first angular position P1 of the suction drum 32. That is, the horizontal pasting continuous paper 27
is guided between the cutter 61 and the die 62 via a guide roll 66, and a perforation 67 is provided in the transverse direction. When the continuous paper 27 to which the perforation 67 is attached reaches the first angular position P1 of the suction drum 32 along the receiving plate 63, the presser mechanism 6 provided opposite to the receiving plate 63
4, and is torn off in the direction of rotation by the suction drum 32 and pinch roller 65. At the first angular position P1 of the suction drum 32, the torn transverse tape 30 covers the outer peripheral surface of the suction drum 32 by blocking the through hole 35 of the suction drum 32 that communicates with the suction and exhaust mechanism. It is adsorbed and supported. The horizontally applied tape 30 thus suction-supported is transferred from the first angular position P1 to the second angular position P2 as the suction drum rotates. A gluing mechanism 33 is provided close to the outer peripheral surface of the suction drum 32 between its first angular position P1 and second angular position P2. This gluing mechanism 33 includes a tank 6 accommodating the glue 68 as described above.
9. Glue top roll 7 immersed and rotated in the glue tank 69
0, a transfer roll 71 that is in contact with the pull-up roll 70 and the outer surface 30a of the horizontally applied tape 30A, and is used to transfer the glue to the horizontally applied tape surface 30a. As shown in FIG. 2, the gluing mechanism for gluing the corrugated side 30b of the horizontal pasting tape 30B is constituted by a pair of meshing rolls 70' and 71' that includes the pulling roll and the transfer roll. The suction drum 32 begins to open to the atmosphere via the through hole 35 in the second angular position. Therefore, the horizontally applied tape 30 is released from the suction drum 32 and is applied to the upper surface 26a of the sheet material 26. The sheet material 72 that has been pasted as described above is guided along the feeding path 14. A suction drum 73 is provided in the feeding path 14 and sends the final sheet material 72 to a product processing machine 74 at the next stage. The product processing machine 74 may be either a machine that cuts the final sheet material 72 into flat plates or a machine that winds it up into a roll.

The apparatus for manufacturing a cushioning sheet material for packaging according to the present invention having the above-mentioned configuration is capable of applying vertically pasted tape and horizontally pasted tape to only one side of the corrugated sheet, which is considered to be extremely advantageous as a cushioning sheet material for packaging as described above. It is possible to continuously produce sheet materials with In other words, the manufacturing apparatus of the present invention does not require a complicated timing mechanism, and the various mechanisms in the apparatus can be designed and processed centrally on one side of the conveyance path of the corrugated sheet. It can be said that this is a highly effective mechanical device in that it is suitable for simplifying machine operations and machine repairs during work.

[Brief explanation of drawings]

The drawings show a specific embodiment of the manufacturing apparatus for packaging cushioning sheet materials according to the present invention, and FIG. A schematic side view of the apparatus; FIG. 2 is a schematic side view of this manufacturing apparatus, which is another example of forming a single corrugated cardboard type tape-like member on a corrugated sheet; FIG. 3 is a schematic side view of the apparatus; FIG. FIG. 4 is a schematic perspective view of a sheet material manufactured by the apparatus shown in FIG. 2, and FIG. 5 is a horizontal tape supply and adhesion mechanism. 6 is a side sectional view showing the structure of the suction drum mechanism, and FIG. 7 is a sectional view taken along the line -- in FIG. 6. 1... Manufacturing device, 2... Corrugated sheet forming mechanism,
3... Vertical tape supply sticking mechanism, 4... Horizontal tape supply sticking mechanism, 5... Base paper supply source for corrugated sheets, 6... Corrugated sheet forming means, 8... Continuous paper for corrugated sheets, 9 , 10... meshing roll, 11...
Corrugated sheet, 14... feeding path, 15... conveying means,
16...Vertical pasting tape supply source, 17, 33... Gluing mechanism, 18... Guide roll, 20... Continuous tape for vertical pasting, 26... Vertical pasting sheet material, 27... Horizontal pasting continuous paper, 29 . . . Continuous paper supply source for horizontal pasting, 30 . . . Tape for horizontal pasting, 31 . ...final sheet material, P1...first angular position, P2...second angular position.

Claims (1)

[Scope of Claims] 1. A continuous paper supply source for corrugated sheets; A continuous tape supply source for vertical lamination that supplies a plurality of continuous tapes for vertical lamination in parallel at predetermined intervals; and a supply of continuous paper for horizontal lamination. a corrugated sheet, the corrugated sheet comprising a pair of meshing rolls for forming a corrugated continuous sheet by imparting regular transverse corrugations in the longitudinal direction to the continuous paper for corrugated sheet supplied from the continuous paper supply source for corrugated sheet; a forming mechanism; and a gluing mechanism for applying glue to one surface of the continuous tape for vertical application, and the continuous tape for vertical application is applied onto one surface of the corrugated sheet through the glue application surface. a vertical tape supplying and pasting mechanism that guides the horizontal pasting tape for joining; a cutting mechanism that cuts the horizontal pasting continuous paper at predetermined width intervals in the length direction to form the horizontal pasting tape; A suction drum mechanism that guides the cut horizontal pasting tape onto the continuous tape for vertical pasting pasted on one side, and a gluing mechanism that applies glue to one side of the horizontal pasting tape. A cushioning sheet for packaging, comprising: a horizontal tape supplying and pasting mechanism equipped with the following; and a conveyance mechanism that pressurizes and conveys the vertical and horizontal tapes onto the corrugated sheet. Material manufacturing equipment.