JPH07171922A - Manufacture of honeycomb board and manufacturing apparatus therefor - Google Patents

Abstract

PURPOSE:To manufacture an inexpensive honeycomb board that can widely be used for a building material or wrapping material, and reduce facility costs of the manufacturing apparatus employed in the manufacturing method. CONSTITUTION:An unstretched continuous honeycomb core 1 housed in a supplier box 2 is pulled out continuously on the transportation path, and then the cells are extended in the direction of transportation by applying braking forces on the traveling of the path by a stretcher A. While keeping an extended state, a liner 5 being pulled out at the same speed thereof is stuck on both the upper and lower surfaces or one surface, following this, it is pulled and then transported after being subjected to a heat-drying process.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for continuously manufacturing a honeycomb board by spreading an unstretched long honeycomb core in the transfer direction and attaching a liner to the upper and lower surfaces or one surface thereof. , And its manufacturing apparatus.

[0002]

2. Description of the Related Art A honeycomb board formed by sticking liners on top and bottom or one side of a honeycomb core made of paper or plastic is lightweight and tough and is most suitable for construction materials and packing materials.

For this honeycomb board, a so-called expanded honeycomb core in which cells are opened vertically or a so-called unexpanded honeycomb core in which cells are folded is used.
In the former case, a product manufactured to a length that can be produced in a factory is cut into an appropriate length, and a liner to which an adhesive is applied is attached to the cut product. In the latter case, the material that can open the cell, such as kraft paper, is cut into pieces of a long length manufactured at the factory and cut at both ends manually or by a special device to open the cell. Then, while maintaining this expanded state, a liner coated with an adhesive in advance is attached, the adhesive is dried, and then the expanded state is released.

[0004]

The conventional manufacturing method and manufacturing apparatus for a honeycomb board as described above are intended to manufacture one piece of a predetermined size one by one, so that the production efficiency is extremely poor. Further, when the adhesive is applied to the end surface of the expanded cell, the workability thereafter becomes extremely poor, so the adhesive is applied to the liner. Therefore, the amount of the adhesive used is large, which is one of the causes of the high cost.

In view of the above problems, the present invention uses an unexpanded long honeycomb board and successively spreads cells, and continuously attaches a liner to the expanded honeycomb board to construct a building material or package. The purpose is to produce an inexpensive board that can be widely used as a lumber.

[0006]

In order to achieve the above object, a method for manufacturing a honeycomb board according to the present invention is such that an unexpanded long honeycomb core housed in a supply box is continuously provided in a transfer path. By pulling out and applying a force for braking the traveling to this long honeycomb core, the cell is stretched in the transfer direction, and while keeping this stretched state, it is pulled out to the upper and lower surfaces or one side thereof at the same speed as this. The feature is that a liner is attached and pulled and transferred.

In the honeycomb board manufacturing apparatus according to the present invention, an unstretched long honeycomb core spreading machine, a gluing machine, and a liner drawn from a mill roll stand are attached to the front side of the long honeycomb core supply box. Wearing rolls,
It is characterized in that a heating / drying machine, a radiator for also driving the long honeycomb core and the pulling of the liner, and a cutting machine are sequentially arranged.

In the above-mentioned honeycomb board manufacturing apparatus,
On the table, install a spreading machine in which both left and right guide plates whose tips are inwardly inclined are arranged, or a braking roll and a restraining roll that rotate at a speed lower than the pulling transfer speed of the long honeycomb core. It is good to arrange a spreading machine. Further, it is preferable to dispose on the table both left and right guide plates whose tips are inwardly inclined to each other, and a spreading machine composed of a braking roll rotating at a speed lower than the pulling transfer speed of the long honeycomb core and a restraining roll on the front side thereof. .

[0009]

When a force for braking the running is applied to the unexpanded long honeycomb core which is drawn from the supply box to the transfer path and runs, the cells sequentially expand in the transfer direction due to the pulling force. If a liner traveling at the same speed as this is adhered while maintaining this expanded state, the honeycomb core and the liner are integrally fixed and a honeycomb board having high strength is continuously manufactured.

When the unextended long honeycomb core pulled out from the supply box is passed between the left and right guide plates whose tips are tilted inward on the table, both sides are pressed inward by both guide plates to run. Because of the braking, the cell runs while stretching in the transfer direction.

Further, since the long honeycomb core passed between the braking roll and the restraining roll rotating at a lower speed than the tensile transfer speed of the unstretched long honeycomb core is braked in its running, the cells are transferred. Drive while spreading in the direction.

When the above-mentioned spreading machine equipped with both the left and right guide plates and the spreading roll is used, the honeycomb core which is difficult to spread is spread due to the hardness, thickness and cell size of the constituent materials of the honeycomb core. Is possible.

In this way, the adhesive is applied to the upper and lower sides or one side of the long honeycomb core which runs while maintaining the stretched state, the liner is overlapped on the coated surface, and the liner is applied with a roll to apply pressure and heat drying. The honeycomb board is continuously manufactured by passing through a machine and a radiator and cutting into a predetermined size by a cutting machine.

[0014]

Embodiments of the present invention will now be described in detail with reference to the drawings. FIG. 1 is an explanatory view showing an embodiment of a method and apparatus for manufacturing a honeycomb board according to the present invention, in which a long honeycomb core 1 made of paper and unexpanded is housed in a meandering state in front of a supply box 2. , The spreading machine A, the sizing machine B, the liner sticking roll 3, the heating / drying machine C, the radiator D also serving as a pulling drive, the cutting machine E, and the conveyor 4 are sequentially arranged to linearly transfer the long honeycomb core 1. Forming a road. In addition, a roll-shaped liner 5 is provided on the rear side of the storage box 2.
The mill roll stand 6 that suspends the liner is installed, and the tension roll 7 of the liner 5 is installed between the mill roll stand 6 and the liner sticking roll 3.

As shown in FIGS. 2 and 6, the long honeycomb core 1 is used by adhering a large number of strip-shaped kraft papers at intervals and expanding the cells to open the cells 8.

A spreading machine A arranged in front of the supply box 2.
As shown in FIGS. 2 to 4, the left and right guide plates 11 that move forward and backward by the drive unit F are provided on the table 10 provided on the frame 9, and the motor 1 is provided at the front end of the frame 9.
A braking roll 13 that rotates by 2 and a holding roll 16 that has both ends rotatably supported by the left and right arms 15 that simultaneously move up and down by the rotation of the left and right screw shafts 14 are provided.

The drive device F for the left and right guide plates 11 is
Slits 17, 1 arranged side by side at the front and rear of the table 10.
Immediately below 7, the chain 20 is attached to the shaft 19 of the reversible motor 18.
The front rotary shaft 21 connected to the front rotary shaft 21 and the rear rotary shaft 21 connected to the chain 20 via the electromagnetic clutch 22 are laterally crossed, and the front and rear rotary shafts 21 and 21 are provided in opposite directions. A screw cylinder 23 is screwed into each of the screws 21 a and 21 b, and a mounting bolt 24 protruding upward from the screw cylinder 23 is attached to the table 10 from the slits 18 and 18.
The left and right guide plates 11 and the long holes 26 of the connecting plate 25 provided on the lower surface of the left and right guide plates 11 are projected upward.
The circular holes 28 of the connecting plate 25 provided in the rear portion of the lower surface of the above are respectively penetrated, and the fastening nut 29 is screwed onto the upper end thereof.

When the fastening nuts 29 are once loosened and both the front and rear rotary shafts 21 are rotated by the reversible motor 18, the screw cylinders 23 move inward or outward, and accordingly the left and right guide plates 11 move inward or outward. The two guide plates 11 move at the same time and the distance between the two guide plates 11 is adjusted. When only the front rotary shaft 21 is rotated by the electromagnetic clutch 22, the front ends of the left and right guide plates 11 move inward or outward, and the inclination angle thereof is adjusted.

Therefore, depending on the width of the unextended long honeycomb core 1, the thickness of the belt-shaped kraft paper as the constituent material, the size of the cells 8 and the like, the left and right guide plates 11 are arranged as described above.
Of the braking roll 13 by adjusting the interval and the inclination angle of the long honeycomb core 1 and moving the holding roll 16 up and down.
Adjust the interval between and.

The gluing machine B arranged on the front side of the spreading machine A is
It consists of a lower coating roll 32 with a doctor roll 31 mounted horizontally on the frame 30 and an upper roll 34 with a doctor roll 33 mounted horizontally on the frame 30 by a lifting drive (not shown). The motors 32 and 34 rotate in opposite directions by a motor.

Heat dryer C disposed in front of the gluing machine B
As shown in FIG. 5, heating plates 38 and 39 are provided on a lower fixed plate 36 and an upper lift plate 37 provided on a frame 35, respectively, and they are opposed to each other. Also, the fixed plate 3
6, the liner sticking roll 40 on the rear end of the lifting plate 37,
41 are installed opposite to each other.

The radiator D also serving as a pulling drive disposed on the front side of the heating / drying machine C is made of cloth on the lower fixed frame 43 and the upper elevating frame 44 provided on the frame 42 in the front and rear respectively. The conveyors 45 and 46 are stretched, and the heat-dried honeycomb board G is reliably sandwiched by the conveyors 45 and 46, and is radiated while being pulled forward.

The cutting machine E arranged on the front side of the radiator D has a circular saw-shaped slitter 47 for cutting in the transfer direction and a circular saw-shaped cutter 48 for cutting in the left-right direction at its front position.
Since the slitter 47 is movable in the left-right direction, the honeycomb board G is cut into a predetermined width and the edges of both ends are removed. The cutter 48 is mounted on a carriage 49 that moves forward at the same speed as the honeycomb board G and moves backward immediately after cutting so as to be movable in the left-right direction. Therefore, the honeycomb board G is cut in the left-right direction while moving.

In the above embodiment, the liner 5 is attached to both upper and lower surfaces of the long honeycomb core 1, and the adhesive is applied to one surface of the long honeycomb core 1 by the gluing machine B, When the liner 5 is attached to the application surface, a honeycomb board having the liner 5 attached to one surface is formed.

The mill roll stand 6 arranged on the rear side of the supply box 2 of the long honeycomb core 1 has the same structure as that in the corrugated board manufacturing machine, and a pair of roll-shaped liners 5 are rotatably attached thereto. Is suspended. The liner 5 is fed between the liner attaching rolls 40 and 41 via the guide roll 7 and is attached to the front and back of the long honeycomb core 1 coated with the adhesive.

[0026]

[Effect] The honeycomb board manufacturing method and the manufacturing apparatus therefor according to the present invention transfer cells by applying a force for braking the running of the unextended long honeycomb core which is drawn out to the transfer path and runs. Since the liner running at the same speed as the liner is adhered while being maintained in the expanded state, the honeycomb board can be continuously manufactured. The manufacturing cost can be significantly reduced.

Further, since the adhesive is applied to both upper and lower surfaces or one surface of the long honeycomb core and the liner is attached to the applied surface, the amount of the adhesive used can be saved. Therefore, coupled with the improvement in productivity, it is possible to manufacture an inexpensive honeycomb board suitable for a building material, a packaging material, and the like.

Further, when using a spreading machine composed of both left and right guide plates whose tips are inclined inward, or a spreading machine composed of a braking roll and a restraining roll rotating at a speed lower than the pulling transfer speed, an unstretched long strip is used. The honeycomb core can be easily spread. In addition, this spreading machine has a simple structure, so that the equipment cost can be reduced.

When the spreading machine having both the left and right guide plates and the spreading roll is used, the hardness and thickness of the constituent material of the honeycomb core can be adjusted by the left and right guide plates and the spreading roll.
Even a honeycomb core that is difficult to expand due to the size of cells or the like can be easily expanded without damaging the honeycomb core.

[Brief description of drawings]

FIG. 1 is an explanatory diagram showing an embodiment of the present invention.

FIG. 2 is a cross-sectional plan view of the spreading machine in the above embodiment.

3 is an enlarged sectional view taken along line XX in FIG.

FIG. 4 is an enlarged vertical sectional view taken along line YY in FIG.

FIG. 5 is a side view of the heating dryer according to the embodiment of the present invention.

FIG. 6 is a perspective view showing a part of an unextended long honeycomb core according to an embodiment of the present invention.

[Explanation of symbols]

 A spreading machine B gluing machine C heating dryer D heat sink for pulling and driving E cutting machine F driving device G honeycomb board 1 long honeycomb core 2 supply box 3 liner sticking roll 5 liner 8 cells 11 left and right guide plates 13 Braking roll 16 Restoring roll 38,39 Heating plate 45,46 Fabric conveyor 47 Slitter 48 Cutter

Claims (5)

[Claims] 1. A cell is expanded in a transfer direction by continuously drawing out an unexpanded long honeycomb core housed in a supply box to a transfer path, and applying a force for braking the running of the long honeycomb core to the transfer path. Then, while maintaining this expanded state, a liner that is pulled out at the same speed as this line is attached to both upper and lower surfaces or one side thereof, and the liner is pulled and transferred. 2. A spreading machine for the unstretched long honeycomb core, a gluing machine, a sticker roll for a liner pulled out from a mill roll stand, and a heating dryer on the front side of the supply box for the long honeycomb core, An apparatus for manufacturing a honeycomb board, in which a long-sized honeycomb core, a radiator that also serves to drive pulling of a liner, and a cutting machine are sequentially arranged. 3. The apparatus for manufacturing a honeycomb board according to claim 2, wherein a spreading machine is provided on the table, the spreading machine having both left and right guide plates whose tips are inclined inward. 4. The apparatus for manufacturing a honeycomb board according to claim 2, further comprising a spreading machine including a braking roll and a restraining roll that rotate at a speed lower than the pulling transfer speed of the long honeycomb core. 5. A spreader comprising left and right guide plates whose tips are inwardly inclined to each other, and a braking roll and a restraining roll, which rotate at a speed lower than the pulling transfer speed of the long honeycomb core, are arranged in front of the guide plates. The honeycomb board manufacturing apparatus according to claim 2.