JPH01321025A - Method and device for producing corrugated sheet - Google Patents

Abstract

PURPOSE:To automatically produce an uneven sheet in a short time by producing a rugged sheet nearly equal in shape to a corrugated sheet from a flat sheet with a roll forming tool and then obtaining squareness of a corner part of the rugged sheet with a right angle finishing device. CONSTITUTION:The flat sheet 23 is passed between an upper and a lower roll 9 for forming a rugged sheet of a roll forming tool 10 to form a rugged sheet 24 nearly equal in shape to the corrugated sheet. Then, the uneven sheet 24 is positioned and set to pieces 20 between an upper and a lower frame body 15 of a right angle finishing device 11, cylinders 17 are elongated, the frame bodies 15 are pressurized through push members 16, wedges 14, 13 in such a direction that they approach to each other and the pieces 20 pressurize the uneven sheet 24 in a vertical direction. Synchronizing with this, the pieces 20 are energized by uniform force through push bars 22, cross bars 19, springs in a lengthwise direction to compress the rugged sheet 24 uniformly in the lengthwise direction. Consequently, the corner parts of the rugged sheet 24 are finished to right angles to produce a perfect corrugated sheet.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a method and apparatus for manufacturing a corrugated plate used as a component of a fuel cell, for example.

[Prior Art] Generally, in a fuel cell, a cell (single cell) in which an electrolyte plate is sandwiched between an anode (negative electrode) and a cathode (positive electrode) is stacked with a corrugated plate such as a corrugated separator interposed, and then an upper holder and a lower part are stacked. It has a structure in which it is held between holders, and electricity is obtained by supplying oxidizing gas to the anode and fuel gas to the cathode.

As shown in FIGS. 4 and 5, the corrugated board described above has recesses l and protrusions 2 in the direction of arrow a, alternately formed in the direction of arrow a, and recesses l and protrusions 2 in the direction of arrow C, respectively. On the other hand, it has a complicated shape in which concave portions 3 and convex portions 4 are arranged side by side alternately in the direction of the arrow.

For ease of understanding, the recess 3 in the direction of the arrow is shown by a broken line in FIG. 5, and a portion d surrounded by a solid line and a broken line is a gap.

Since such a corrugated board cannot be manufactured in one press due to its complicated structure, a pair of corrugated plates each having concave portions 1 and convex portions 2 arranged in the direction of arrow C as shown in Fig. 6 is used. Figure 7 (a+(b)
), a single plate 7 was manufactured by hand by turning over each time and pressing while feeding 1/2 pitch at a time.

[Problems to be Solved by the Invention] However, in the method for producing a corrugated board described above, one board 7 is manually turned over each time and pressed while feeding 1/2 pitch at a time, which makes the manufacturing process difficult. It took a very long time.

In view of the above-mentioned circumstances, it is an object of the present invention to provide a method and apparatus for manufacturing a corrugated board that can automatically manufacture a corrugated board in a short time.

[Means for Solving the Problems] The present invention has a plurality of square-toothed gears connected in the axial direction so that every other gear has the same tooth phase, and adjacent gears have teeth out of phase. A plate forming roll is formed, and a flat plate is passed through a rotary molding tool arranged vertically so as to mesh with each other to form an uneven plate having a shape substantially equal to that of a corrugated plate. and a method for manufacturing a corrugated board characterized by applying compressive force from the longitudinal direction to obtain the surface angle of the corner part, and a method of manufacturing a corrugated board characterized by applying compressive force from the longitudinal direction, and a method of producing a corrugated board, which is characterized by applying a compressive force from the longitudinal direction to obtain a surface angle of the corner part. A plurality of gears are connected in the axial direction so that the teeth are out of phase to form a concavo-convex plate forming roll, and the concave-convex plate forming rolls are interlocked with a rotary molding tool arranged above and below, and the spacing is approximately constant via a spring. A shaft on which multiple pieces are movably attached so that the pieces are held in the same position is used.The pieces are placed on every other axis so that the pieces are in the same position, and the adjacent pieces are placed on multiple pieces at equal intervals in the width direction so that the pieces are shifted in the longitudinal direction. The frame bodies are arranged above and below so that the pieces fit into each other, and a device is provided for pressurizing the frame bodies in a direction in which they approach each other and applying compressive force to the pieces in the longitudinal direction. The present invention relates to a full-gate plate manufacturing device comprising a right-angle finishing device and a right-angle finishing device.

[Function] The flat plate passed through the rotary molding tool is formed into a concavo-convex plate with approximately the same shape as a corrugated plate by upper and lower concave-convex plate forming rolls,
When compressive force is applied to the uneven board from the vertical and longitudinal directions using a right angle finishing device, the corners of the uneven board are corrected at right angles, and a corrugated board is manufactured.

[Example] Embodiments of the present invention will be described below with reference to the drawings.

1 to 3 are explanatory diagrams of an embodiment of the present invention.

Among the gears 8 with porcelain teeth, every other gear 8 has the same tooth phase, and the phase of adjacent gears 8 is shifted within a range of 172 pitches (in the figure, the gears 8 are shifted by 1/4 pitch). A plurality of uneven plate forming rolls 9 are formed by connecting a plurality (three in the figure) in the axial direction, and the uneven plate forming rolls 9 are disposed above and below so as to mesh with each other to form a rotary molding tool! 0 (Figure 1).

A right angle finishing device 11 having the following configuration is disposed downstream of the rotary molding tool 10.

A pair of upper and lower frames 12 are provided at a constant interval, and a pair of upper and lower frames 15 are supported via wedges 13 and 14 between the upper and lower frames 12, and the end portion of the wedge 14 is connected to the pusher 4 and 6.
A cylinder 17 is attached to the pushing member 16 so that the frame body 15 can be pressurized and depressurized in the vertical direction by expansion and contraction of the cylinder 17, and a plurality of shafts extending in the longitudinal direction are provided inside each frame body 15. 18 (five in the figure) are provided at equal intervals in the width direction, and a pair of crossbars 19 extending in the width direction are movably fitted at both ends of all the shafts 18.
A plurality of pieces 20 are movably fitted between the crosspieces 19 of each shaft I8, and springs 21 of equal strength are interposed between the crosspieces 19 and pieces 20 of each shaft 18 or between the pieces 20, The positions of every other piece 20 in the width direction are approximately the same, and the positions of adjacent pieces 20 are shifted to the same side in the longitudinal force direction (in the figure, the positions of the pieces 20 are shifted by approximately 1/2 of the thickness dimension of the pieces). In addition, the pieces 20 attached to the upper and lower frames 15 are arranged so as to fit between the pieces 20, and the pushing member! A push rod 22 is attached to 6 so that it can push the crosspiece 19 (instead of the push rod 22, the rod of the cylinder 17 may be extended to push the crosspiece 19. See Figures 2 and 3). .

Note that 23 is a flat plate, 24 is an uneven plate, and 25 is a semicircular groove through which the push rod 22 passes.

First, by passing the flat plate 23 between the upper and lower uneven plate forming rolls 9 of the rotary molding tool 10, the flat plate 11 is processed into an uneven shape to form an uneven plate 24 having a shape substantially equal to the shape of the corrugated plate to be manufactured. Since the corners of the uneven plate 24 are not at right angles, next, the uneven plate 24 is set between the upper and lower frames 15 of the right-angle finishing device 11, aligned with the piece 20, and the cylinder 17 is extended. By this, the pushing member 16, the wedge 14. The frame bodies 15 are pressurized in the direction of approaching each other via H, and the pieces 20 compress the uneven plate 24 in the vertical direction, and in synchronization with this, the pieces 20 are compressed via the push rod 22, crosspiece 19, and spring 21. Since the uneven board 24 is equally compressed in the longitudinal direction by being biased with an equal force in the longitudinal direction, the corners of the uneven board 24 are finished at right angles, and a complete corrugated board is manufactured.

In this way, the flat plate is processed using the rotary molding tool 10 to create a concave-convex plate 24 that has a shape substantially equal to the shape of the corrugated plate to be manufactured, and then the concave-convex plate 24 is processed using the right-angle cutting machine 11 to make the corner portions straight. Since the corrugated board was manufactured in two automatable processes of creating the angle, it became possible to manufacture the corrugated board automatically in a short time, and mass production of the corrugated board was realized. 4
Note that the method and apparatus for manufacturing a corrugated board of the present invention are not limited to the above-mentioned embodiments, and the use of the corrugated board is not particularly limited, and a press may be used in place of the right-angle finishing device. However, it goes without saying that various changes can be made without departing from the gist of the invention (in this case, the device will become larger).

[Effects of the Invention] As explained above, according to the method and apparatus for manufacturing a corrugated board of the present invention, a flat plate is processed with a rotary molding tool to produce a concavo-convex board that is approximately the same in shape as the corrugated board to be manufactured; The corrugated board was then manufactured by dividing the uneven board into two automatable processes: processing the uneven board with a cutting machine to create squareness at the corners, so the corrugated board could be manufactured automatically in a short time. This makes it possible to achieve the excellent effect of realizing mass production of corrugated plates.

[Brief explanation of the drawing]

Fig. 1 is an explanatory diagram of a rotary molding tool used in an embodiment of the present invention, Fig. 2 is an explanatory diagram of a right angle finishing device used in an embodiment of the present invention, and Fig. 3 is an illustration of the ■-■ arrows in Fig. 2. 4 is an explanatory diagram of a corrugated plate, FIG. 5 is a view taken in the V direction of FIG. 4, FIG. 6 is an explanatory diagram of a conventional device, and FIG. 7 (Tayama) is an explanation of a conventional method. It is a diagram. In the figure, 8 is a gear, 9 is an uneven board forming roll, IO is a rotary forming tool, 11 is a right angle finishing device, 12 is a frame, 13.
14 is a wedge, I5 is a frame, 16 is a push member, 17 is a cylinder, 18 is a shaft, 19 is a crosspiece, 20 is a piece, 21 is a spring, 2
2 is a push rod, 23 is a flat plate, and 24 is an uneven plate. Figure 5 Figure 6

Claims (1)

[Claims] 1) A plurality of square-toothed gears are connected in the axial direction so that every other gear has the same tooth phase, and adjacent gears have teeth out of phase, and a concave-convex plate forming roll is used. A flat plate is passed through a rotary molding tool which is arranged vertically so that the rolls for forming the concave and convex plate are engaged with each other to form a concave and convex plate having a shape substantially equal to that of a corrugated plate, and the concave and convex plate is formed from the vertical and longitudinal directions. A method for producing corrugated boards, which is characterized by applying compressive force to create squareness at corners. 2) A plurality of square-toothed gears are connected in the axial direction so that every other gear has the same tooth phase, and adjacent gears have teeth out of phase to form an uneven plate forming roll, and the uneven plate A rotary molding tool is arranged above and below so that the forming rolls are engaged with each other, and a shaft to which multiple pieces are movably attached so that the spacing is maintained approximately constant via springs is set. A plurality of frames are provided at equal intervals in the width direction so that the positions of the pieces coincide and the positions of adjacent axes are shifted in the longitudinal direction.
A corrugate comprising a right-angle finishing device which is arranged such that the frames are arranged one above the other so that the pieces fit into each other, and is equipped with a device that presses the frames in a direction toward each other and applies compressive force in the longitudinal direction to the pieces. Board manufacturing equipment.