JPH0562050B2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention uses a cut plate-shaped base material as a lower base material, a plurality of lower base materials are butted together and continuously supplied, and the upper side is foamed. The present invention relates to a composite plate manufacturing apparatus that sequentially laminates and cures a composite material and an upper base material to form a composite plate band, and cuts the composite plate strip at the abutting portion of the lower base material. [Prior Art] Conventionally, in order to improve the heat insulation properties of gypsum boards, sheathing boards, etc., many composite boards in which synthetic resin foam is laminated on one side have been put on the market. When manufacturing this type of composite board continuously, gypsum board,
The lower base materials in the form of cut plates such as sheathing boards are butted together, the synthetic resin foam is discharged onto them, the sheet material that will become the upper base material is laminated, and after shaping and curing, it is processed using an encoder, limiter switch, etc. The length was measured using a running cutting machine or the like. However, with this device, there is an error of about +3 to -1 mm in the length of the lower base material, so when a certain length is measured and cut, an accumulated error occurs, and the lower base material is cut at a location other than the butt surface. There was a drawback. [Object of the invention] In order to eliminate the above-mentioned drawbacks and disadvantages, the present invention
In the lower substrate supply section, a sticking section for attaching identification tapes of different colors and brightness to the substrate is provided on a part of the butting surface, and a sensor for detecting the identification tape is installed at the outlet of the cure oven. The present invention proposes a composite plate manufacturing apparatus that can reliably cut the butting surface of the lower base material by controlling a traveling cutting machine. [Example] A composite plate manufacturing apparatus according to the present invention will be described in detail below with reference to the drawings. FIG. 1 is an explanatory diagram showing the outline of the above-mentioned composite board manufacturing apparatus, and 1 is a lower base material supply section that can handle plasterboards, sheathing boards, and surface-treated steel plates (including those formed into plate shapes and gutter shapes).
This is the part where the ends of the cut plate-shaped lower base material A are brought together and fed. To explain further, the lower base material supply section 1 includes a pasting section for pasting an identification tape (hereinafter simply referred to as tape) E to the abutted end surfaces of the cut plate-shaped lower base material A. That is, as shown in FIG. 2a, at the butt end of the lower base material A, for example, a PC tape is placed on one side of a piece of adhesive such as gummed tape at a position that includes the detection range of the sensor 14, which will be described later. A tape or magnetic tape of a different brightness or color from the lower substrate A is attached and supplied in a U-shape or an L-shape (not shown) using a tape or an adhesive. Note that it is also possible to apply an identification paint to the adhesive of tape E. To explain further, the tape E is attached to the end surface of the lower base material A at the rear with respect to the traveling direction of the lower base material A, as shown in FIGS. 2a and 2b. is attached to the back surface of the lower base material A so as to be exposed. This is because the sensor 14 detects the abutting surface of the lower base material A more reliably than the tape E. 2 is a discharge part in which core material B, such as polyurethane foam, polyisocyanurate foam, phenol foam, polyurea foam, etc., or additives such as various flame retardants, flame retardant aids, and reaction accelerators are mixed with these to form synthetic resin foam. A synthetic resin foam mixed with aggregate such as perlite or glass beads is placed on the upper surface of the lower base material A, for example, by a discharge method equipped with a rotating blade, a spray gun method (air,
(including airless) or injection method. Reference numeral 3 denotes an upper base material supply section, which laminates the upper base material C on top of the core material B which has been laminated. To explain further, the upper base material C is made of asbestos paper, metal foil (Al, Fe, Cu, Pb), plastic sheet, liner paper, asphalt felt, and a composite sheet material laminated with one or more of these materials. In addition to serving as one side material of plate _D1 , it also functions as a mold release material. Also,
4 is a cure oven, which heats the composite plate band D;
This is to apply pressure to promote the reaction and foaming of the core material B, and to form the composite plate band D into a constant thickness and shape. As shown in the figure, the mechanism consists of a driving wheel 5 and a driven wheel 6, in which an endless steel belt made of stainless steel or the like is wound vertically at a constant interval between upper and lower mold members 7, 8, and upper and lower mold members. 7, 8 and a composite plate band D, and a cover 10 that keeps the upper and lower mold members 7, 8 warm, or, although not shown, the upper and lower mold members 7, 8 are heated by a caterpillar ( (registered trademark name) method, roll conveyor method, or different methods are used to form the upper and lower mold bands 7 and 8, such as the upper mold material 7 being a steel belt and the lower mold material 8 being a caterpillar. 1 more
Reference numerals 1 and 12 denote holding rollers, which are used to keep the composite plate strip D conveyed from the outlet of the cure oven 4 at a constant level so that it does not float up in a sensor 14 and a traveling cutter 15, which will be described later. The distance between the top and bottom is approximately equal to the thickness of the composite plate band D, and is such that it is not compressed strongly. Reference numeral 14 denotes a sensor, and a tape is pasted in the lower mold base material supply section 1 to the butt part of the lower mold base material A of the composite plate band D which is molded and supplied from the outlet of the cure oven 4 as shown in FIG. 2c. This is the part that detects E and generates a signal for the traveling cutting machine 15 in the next process to cut at the butt joint. To explain further, the sensor 14 is installed so as to detect a certain width, for example, 60 mm, in the direction perpendicular to the traveling direction of the composite plate band D, and this position is constantly illuminated by the light emitter 13. However, it is installed so that the sensor 14 senses when the tape E comes to this position. The sensor 14 may be an image sensor, a photoelectronic sensor, an optical fiber sensor, a color mark sensor, a magnetic sensor, etc., and is selected depending on the type of tape E. As a specific example, when a 256-bit CCD image sensor is also used as the sensor 14, one scanning time of the sensor 14 is about 0.5 seconds, so if the moving speed of the composite plate band D is 18 m/min, the scanning time is about 0.2 mm. It is possible to detect this, and only when a preset ratio or more of bits are detected, a signal is issued to the traveling cutting machine 15 indicating that the butting surface, that is, the cutting target position has been reached. The traveling cutting machine 15 is installed so that its fixed position is a certain distance from the sensor 14, and when it receives the signal generated by the sensor 14, it moves with a time difference according to the speed of the composite plate strip D. At the same time, the composite plate strip D is cut at the abutting portion to form a composite plate _D1 . To explain further, the traveling cutting machine 15 may be of any type such as a guillotine type, a saw blade type, or a circular saw type. Next, to briefly explain the operation of the composite plate manufacturing apparatus according to the present invention, first, the lower base material A in the form of a cut plate is
Attach adhesive tape E in a U-shape to the butt ends of. Next, the tape is continuously supplied to the lower base material A in the front direction with respect to the traveling direction, with the surfaces to which the tape E is attached at the ends facing each other. Next, in the discharge section 2, the raw material for the synthetic resin foam that will become the core material B is continuously discharged onto the upper surface of the lower base material A, and the upper base material C is laminated thereon and fed to the cure oven 4 . It is. In the cure oven 4 , the core material B is pressurized by the upper and lower mold members 7 and 8 and heated by the heat supply section 9 to react, foam, and form the core material B, and the composite plate strip is released from the exit of the cure oven 4 . It is sent as D. The sensor 14 detects the tape E exposed from the butt part of the lower base material A, and the traveling cutter 15 cuts that part of the composite plate band D. , the upper base material C is delivered to the packaging department as a composite board _D1 with the edges aligned. Therefore, continuous production of the composite plate _D1 can be easily achieved by operating the above-described apparatus according to the above-described steps. [Other Embodiments] The above is only one embodiment of the composite plate manufacturing apparatus according to the present invention, and it is also possible to attach tape E as shown in FIGS. 3a and 3b. That is, a
The figure shows a state where the adhesive is attached in an L-shape to the butted end surface and the back surface of the lower base material A, and FIG. b shows a state where it is attached only to the end of the back surface of the lower base material A. Although not shown, a temperature-indicating paint may be used instead of the tape E, that is, it changes color at the temperature inside the cure oven 4 , and the sensor 14
It is also possible to apply a paint that becomes transparent when it reaches room temperature. Furthermore, it is also possible to use a fading paint to vary the color and brightness only during manufacturing. Furthermore, it is also possible to add a control device such as a microcomputer to the sensor 14 so that the sensor 14 can detect only a certain width at a certain interval. Further, it is also possible to synchronize the traveling cutter 15 and the composite plate band D by using either one of the pressing rollers 11 and 12 as a measuring roller. Furthermore, it is also possible to use a circular saw or the like in the traveling cutting machine 15 to cut the portion other than the lower base material A. [Effects of the Invention] As described above, according to the composite plate manufacturing apparatus according to the present invention, when a cut plate-shaped material is used as the lower base material, it is possible to reliably cut the material at the end face of the lower base material. Therefore, the end face of the lower base material and the end face of the composite plate match, and a composite board with a beautiful appearance and a composite board with few dimensional errors can be manufactured.

[Brief explanation of the drawing]

Fig. 1 is an explanatory diagram for explaining the composite plate manufacturing apparatus according to the present invention, Figs. 2 a to c are explanatory diagrams for explaining each process, and Figs. 3 a and b are for explaining other attachment states of the identification tape. FIG. 1... Lower base material supply section, 2... Discharge section, 4 ...
Cure oven, 11, 12...press roller,
14...Sensor, 15...Traveling cutting machine, E...Identification tape.

Claims (1)

[Claims] 1. A lower base material supply section that supplies cut plate-shaped lower base materials while butting them together, a discharge section that supplies a foamable mixture to serve as a core material to the upper surface of the lower base material, and the discharged core material. After laminating the upper base material, the lower base material, the core material, and the upper base material on top of the upper base material supply part, heating is performed to promote the reaction of the foamable mixture and to form it into a certain shape. In a composite plate manufacturing apparatus comprising a curing oven for forming and a traveling cutting machine for cutting a continuous composite plate strip supplied from the curing oven into a fixed length, the lower base material is butted in the lower base material supply section. An adhesive tape or an adhesive part for pasting an identification material is provided on a part of the end face, and a sensor is installed at the outlet of the cure oven to detect the identification tape pasted on the abutting part of the lower base material. A composite plate manufacturing device characterized by controlling a traveling cutting machine by detecting a sensor.