JPH0559805B2 - - Google Patents

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention utilizes a thin metal plate as the surface material, a plastic foam as the core material, and particularly utilizes adhesive function when the raw material is discharged and reacted and foamed, and as the back material. It is possible to laminate one or more sheet-like materials such as kraft paper and form box-folded pieces at the top and bottom ends of the thin metal plate in the longitudinal direction to facilitate reinforcement of the ends and filling of joint material after construction. The present invention relates to a manufacturing apparatus for a box-folded composite board that can continuously manufacture composite boards at high speed. [Prior Art] Generally speaking, Japanese Patent Publication No. 58-21583 and Japanese Patent Publication No. 59-17675 are known as apparatuses for manufacturing this type of composite plate. [Problems to be solved by the invention] This type of device only cuts composite boards into regular lengths.
The end faces in the longitudinal direction were not treated at all. In other words, the end faces of the thin metal plate (thickness 0.27 mm), the plastic foam, and the backing material were exposed, and when this composite board was used to form an exterior wall, etc., the caulking material could not be sufficiently fixed to the joints. Further, there were drawbacks such as deformation of the upper and lower end surfaces of the composite plate and deterioration of the appearance of the decorative surface. In addition, conventional equipment only cuts the end face of the composite board in a straight line, but in order to box-fold the top and bottom ends of the composite board, the plastic foam at the top and bottom ends is cut out, and then the male However, it was necessary to bend the end face at 90 degrees after cutting the female type connecting part, which resulted in a complicated man-hour and a disadvantage of poor productivity. [Means for Solving the Problems] In order to eliminate such drawbacks, the present invention forms box-folded pieces at both upper and lower ends of the thin metal sheet at the same time as cutting the thin metal sheet to a regular length before filling the plastic foam. Next, the upper and lower ends of this thin metal sheet are folded inward using a box folding machine, and the bent portions are arranged in a line in contact with each other, and the contact areas are sealed with tape. Plastic foam raw material is continuously discharged onto the top, and after laminating the backing material on top of it, it is sent to a cure oven, the sealing part is detected at the exit, and then it is cut to continuously manufacture composite plates. The present invention proposes a manufacturing device for a composite board with a box folding section, which produces a decorative surface with a beautiful appearance and allows caulking material to be reliably planted in the joints when the composite board is constructed. [Example] An example of a manufacturing apparatus for a composite plate with box folding pieces according to the present invention will be described in detail below with reference to the drawings. FIG. 1 is a schematic diagram of the configuration of the above device,
1 consists of an uncoiler 2 equipped with a thin metal plate A wound into a coil (hereinafter simply referred to as a coil) and a pinch roller 3 at the upper base material delivery section, and is used to smoothly feed the coil A to the next process. belongs to. 4 uses a running cutter to cut the coil A to a specified length, and cut both longitudinal ends (upper and lower ends) of the cut plate to the specified length sequentially as shown in Fig. 2b, and then cut the coil A into a box-folded piece. It forms a. In addition,
The traveling cutter 4 matches the speed of the fed coil A and cuts the coil A without stopping its movement. Of course, after cutting, it is returned to its original position by a rapid feed device (not shown).
5 is a pinch roller that cuts a fixed length coil A.
The auxiliary cutter 6 is useful for cutting the end face of the coil A at the beginning of cutting or after trouble. 7 is a molding machine for forming coil A, for example, in Fig. 3 a, b.
It is formed in the shape of a gutter as shown in . The figure shows a case where the male and female connecting portions a ₁ and a ₂ are formed in the longitudinal direction. Reference numeral 8 denotes a box folding machine which bends the box folding piece a inward at an arbitrary angle, for example, about 90° or 120°, along the trajectory shown in FIG. 5, by the method shown in FIGS. 4a to 4d.
In addition, this box folding machine 8 is operated in the order shown in FIG. 4 a to d.
Moreover, it is molded according to the flower diagram shown in FIG. To explain further, the box folding machine 8 is a batch type, and as shown in figure a, a coil A is cut into a fixed length.
The upper, lower, left and right ends of the upper and lower parts are arranged at predetermined positions by the adjuster 9, and then the upper part material 1 is adjusted as shown in figure b.
0 to the back side of the gutter-like part of coil A, and then c
As shown in the figure, the lower mold material 11 is laminated and fixed on the thin metal plate A, and then, as shown in figure d, the box-folded piece a is moved inward from the position shown by the dashed line to the position shown by the solid line with the bending die 8a. Bend 90° to form one end of the box-folded composite board. Of course, to form the box-folded piece a on the other end, the above steps are performed on the other end, and the third
Coil A as shown in Figures a and b is manufactured using a batch method. A protective material of urethane rubber 11a is attached to the surface of the lower mold member 11 that comes into contact with the thin metal plate A to prevent damage. 12 connects the box-folded pieces a of the coil A to the box-folded pieces a of the box-folded coil A using a sealing machine, connects the connecting parts with tape as shown in Fig. 6, and tapes the connected parts. The coil A is coated with C to form a continuous band of the coil A in actual production and to prevent the plastic foam raw material P from leaking from the connection part. 13
The preheater is used to heat the coil A to 30 to 110°C, and is used to effectively function when the plastic foam raw material P is discharged in the next step. 14 is a pinch roller that feeds the coil A preheated by the preheater 13 to a discharger 15 to be described later. Reference numeral 15 is a dispensing machine which applies a self-adhesive plastic foam raw material P (hereinafter simply referred to as raw material) to the back side (single side) of the coil A. Alternatively, it is intended to be supplied by either an injection method or the like. Note that as the raw material P, a thermosetting foamable synthetic resin is used. 16
is a backing material supply unit that supplies backing material B, such as one type of metal foil, asbestos paper, kraft paper, aluminum foil, plastic sheet, asphalt felt, etc.
Alternatively, a laminate of two or more types is laminated on the raw material P, and is composed of, for example, an uncoiler (not shown), a guide 17, and a detector 18 provided as necessary. To explain further, the guide 17 guides the back material B onto the coil A, and also determines the timing for bringing the back material B into contact with the raw material P (so-called self-adhesion of the raw material P) depending on the state of the raw material P. It has the function of making more effective use of properties) and evening out the unevenness of dispersion of the raw material P. Although its structure is not shown, one or many rollers are arranged in a sloped or tapered shape, and the raw material P
, and average the variance. Reference numeral 19 denotes a cure oven, which transports the raw material P with it interposed between the coil A and the backing material B, reacts and foams the raw material P in a favorable environment, and forms it into a composite plate S of a predetermined thickness. . Specifically, for example, a steel belt or Caterpillar (registered trademark) is engaged between the driving wheels 20, 21 and the driven wheels 22, 23, and reinforcing rollers 26 are arranged on the back surfaces of the lower die members 24, 25. However, heating devices 27 and 28 are provided on the back side of the reinforcing roller 26, and a space including the entire mold material is closed with a cover 29 to close the mold entrance and exit as much as possible. To explain further, the reinforcing rollers 26 prevent the upper and lower mold members 24 and 25 from deforming due to the foaming pressure of the raw material P, and the heating devices 27 and 28 keep the inside of the mold 19 warm at 30 to 110 degrees. , to complete the reaction of the raw material P within a predetermined time and to exhibit predetermined physical properties. Also,
The cover 29 keeps the inside of the mold 19a warm and also protects the raw material P.
In order to prevent the release of trichloromonofluoromethane released during the reaction, or carbon dioxide gas, carbon monoxide, etc. released from the heating devices 27 and 28 into the working environment for safety and hygiene reasons, and to obtain a more effective heat retention effect. It is. Reference numeral 30 denotes a detector for identifying the connecting portion of the composite plate S, and is made of one type such as a phototube, a proximity switch, or an image sensor. A final cutter 31 cuts between the tapes C of the composite plate S, and is useful for cutting the foam and the tape C to make a product of a fixed length. 32 is a conveyor arranged between each process,
This is for feeding the coil A and composite plate S to the next process. Next, to briefly explain the operation of the apparatus for manufacturing a composite board with box folding pieces according to the present invention, first, the coil A
is attached to the uncoiler 2 and fed to the pinch roller 3. Further, the traveling cutter 4 is synchronized with the movement of the coil A, and one end thereof is rapidly fed by a pinch roller 5 to be fed to the molding machine 7. In particular, the coil A is cut by the running cutter 4 into the shapes shown in FIGS. 2a and 2b. The coil A thus cut is molded into a gutter-like cross section as shown in FIG. 2c in a molding machine 7. Note that at the time of passing through the forming machine 7, the box-folded piece a is flat and not bent inward. Next, the coil A that has passed through the forming machine 7 is sent to the box folding machine 8, and is passed through the steps shown in Fig. 4 a to d, and along the trajectory shown in Fig. 5.
The box-folded pieces a are formed at the upper and lower ends of the coil A in the longitudinal direction by bending the coil A as shown in FIG. This process itself is a batch process. The coil A formed in this way is covered with tape C on the rising end surfaces of the box folded pieces a by a sealing machine 12.
The raw material P is prevented from leaking into the mold material from this connection, and the coil is fed as a continuous belt to the next process. This continuous zone is heated to about 30 to 110° C. in a preheater 13 and fed to the bottom of a discharger 15. This discharger 15 continuously discharges the raw material P into the gutter-like portion of the coil A, stacks the backing material B thereon, and feeds the raw material P to the mold 19a of the cure oven 19. Type 1
In 9a, the raw material P is sandwiched between the coil A and the backing material B, reacted, foamed, and molded, and then fed from the outlet 19b as a continuous composite band. A detector 30 detects the contact portion of the box-folded piece a in this continuous composite strip, the final cutter 31 cuts that portion, and the composite plate S of a fixed length is sent to the packaging department. Therefore, in order to continuously produce composite plates S, if the above-described apparatus is operated according to the steps described above, composite plates S such as those shown in FIGS. 3a and 3b, for example, can be easily manufactured. What has been described above is only one embodiment of the manufacturing apparatus according to the present invention, and it can also be installed in the pre-process of the molding machine 7 as shown in FIGS. 7 and 8. That is, FIG. 7 shows the preheater 33 and the pinch roller 3.
4, embossing roller 35, leveler 36, reversing machine 3
7. This is a device in which a guide 38 with a loop is interposed, and instead of cutting the upper and lower ends of the coil A in the longitudinal direction with a running cutter, each sheet is cut to a fixed length and box-folded with a cutter 39. Aiming to form a,
This is a device that feeds the molding machine 7, and 40 is a length measuring device that is movable. Of course, the subsequent steps in FIGS. 7 and 8 are the same as in FIG. 1. [Effects of the Invention] As described above, according to the device according to the present invention,
A composite plate can be manufactured from a coiled thin metal plate in which coils of arbitrary length are almost continuously formed and box-folded pieces are formed on the vertical end faces. By using a traveling cutter, it is possible to cut to arbitrary lengths and form folded box pieces at the same time, which greatly reduces the number of steps compared to before, and enables continuous production. By mechanizing the box folding process, especially by incorporating it into the line, unprecedented productivity can be achieved. Since it can detect objects of fixed length and accurately cut foam and backing materials, the number of workers can be reduced by one. It has the following characteristics.

[Brief explanation of drawings]

FIG. 1 is an explanatory diagram showing an embodiment of the manufacturing apparatus for a composite plate with box folding pieces according to the present invention, FIGS. 2 a to d are perspective views showing the process order of the thin metal sheet, and FIGS. 3 a and b are A perspective view showing an example of a composite board, FIGS. 4a to d are explanatory views showing the box folding process, FIG. 5 is a flower diagram of a box folded piece, FIG. 6 is a perspective view showing a sealing structure, and FIG. 7 ,
FIG. 8 is an explanatory diagram showing another embodiment. 1 ... Upper base material delivery section, 7... Molding machine, 8...
Box folding machine, 10... Upper mold material, 11... Lower mold material, 1
2...Filler, 15...Discharge machine, 19...Cure oven, 29...Cover, 31...Final cutter.

Claims (1)

[Claims] 1. An upper base material delivery section that winds a metal thin plate into a coil shape and sends it out for the next process, a traveling cutter that cuts the sent out metal thin plate into a fixed length, and a cutter that cuts the fed thin metal plate into a fixed length,
A forming machine that forms a thin metal plate with box-folded pieces formed on both ends into an arbitrary gutter shape, and a box-folding machine that bends the box-folded pieces on the longitudinal end face of the formed thin metal plate inward to form the shape. and a sealing machine that brings together the box-folded pieces of a thin metal plate formed into a box shape and covers the joints with tape, etc.; a preheater that heats the metal sheet; a discharge machine that discharges plastic foam raw material that is in the process of reacting and foaming onto the back surface of the thin metal plate that has passed through the preheater; and a backing material supply unit that feeds the backing material onto the discharged raw material;
A plastic foam raw material is sandwiched between a backing material and a thin metal plate to form the foam into a predetermined shape, and a curing oven for curing and a final cutter for cutting the sealing portion of the continuous band sent out from the curing oven are arranged in this order. A manufacturing device for box-folding composite board featuring: