JPS6179654A - Production unit for sandwich board - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides a sandwich board, in which a foamable reaction mixture having self-adhesive properties is interposed between two base materials, and at least one of the two base materials is embossed. The present invention relates to an apparatus for continuously manufacturing a sandwich plate having a base material.

Recently, as interior and exterior materials for buildings, insulation and weight reduction,
Sandwich plates using a metal plate that has both rigidity and rigidity as one base material are being mass-produced. However, there are almost no sandwich plates that have improved coldness and smoothness of the metal, so-called products that are rich in design and three-dimensional effect (embossed patterns), and that suppress the physical properties of the material (flexibility). . Furthermore, even if they existed, they only had a limited number of colors, thicknesses, and patterns, and in reality they were no more than mere metal composite plates.

Furthermore, when a foamable reaction mixture, for example a synthetic resin raw material such as polyurethane resin, is used as a core material, the formation of the foam involves a chemical reaction that is greatly affected by various factors such as temperature, so it is necessary to set uniform conditions and maintain a certain temperature. It was hoped that a device that could respond to changes would emerge. In addition, since this kind of equipment that has been used in the past has a manufacturing process using a simple straight line, the plastic foam raw material is supplied from the back side of the front material or the back material, and the spreading of the raw material,
Dispersion was not ready. Furthermore, in the past, the equipment from the embossing process to the compositing process was not continuous, resulting in a disadvantage of poor productivity.

In order to eliminate such drawbacks, the present invention embosses a thin metal plate wound into a coil, then, after releasing the residual strain during embossing, curves it greatly inward and inverts it. A thin metal plate is formed into a predetermined shape, and this is approximately 20 to 1
The plastic foam material is heated to 10°C, and then the plastic foam raw material is discharged, the face material is laminated, and this is fed to the cure open to smoothly, continuously, and economically form a sandwich plate with a predetermined cross-sectional structure. This paper proposes an apparatus for manufacturing sandwich plates that can be manufactured in a number of ways.

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the sandwich plate manufacturing apparatus according to the present invention will be described in detail below with reference to the drawings. Figure 1 is a schematic diagram of the above-mentioned equipment.
An embossing line 1 is installed on the first floor, and a composite line U is installed on the first floor on almost the same center line, and a reversal line is formed at one end between the second and first floor sections to form a sandwich board or mold. The rotating roller 4z that detects the speed is installed on the first floor, on the second floor,
Alternatively, a control panel 43 is provided on the first floor (not shown), a traveling cutter 41 is provided after the compounding line, and a secondary forming machine is provided as required. To explain further, the emboss line 1 is formed by a thin metal plate feeding section (hereinafter simply referred to as feeding section) 3.
, a first loop portion 6, a pinch roller 7, an embossing roll, a leveler 9, a tensioning pinch roller 10,
It consists of checking parts 11, which are arranged in a straight line.

To explain in more detail, the feeding section 3 consists of an uncoiler 4, a pinch roller 5, and a simple cutter 5a, and is a flat metal thin plate (having a decorative coating such as a decorative coating or a decorative film) wound into a coil. This is for attaching A and constantly feeding it to the first loop section 6 without strain. Note that the simple cutter 5a is used to cut the thin metal plate A when necessary.

The first loop section 6 controls speed differences and deviations that occur when transferring the thin metal sheet A (hereinafter simply referred to as a coil) to the embossing roll 7 in the next process by loosening the coil A, and also controls the transfer from the feeding section 3. This function is to prevent a large shock from being applied to the supplied coil A.

In addition, the pinch roller 7 feeds the coil A to the embossing roll base at a predetermined speed, and also feeds the coil A to the embossing roll base during embossing.
It functions as a brake against the movement of. The embossed roll base has a pattern consisting of male and female uneven parts formed on the outer peripheral surface, and the upper and lower rolls 8a and 8b are engaged to form a coil A.
The upper and lower rolls 8a, 8
The gap b is determined by the height of the uneven portion and the thickness of the coil A. The leveler 9 corrects the residual strain existing in the embossed coil, and as shown in an enlarged view in FIG. 2, the upper roller 9a1.9a2.9a
31. ,,． 9an (shown up to 9a3 in the figure), lower roller 9b + , 9b 2.9b s , -0-9b
The rollers are arranged in a zigzag pattern in the order of n (up to 9b in the figure), and the gap between the upper roller group 9a and the lower roller group 9b can be adjusted. Also,
The tensioning pinch roller 10 rotates faster than the embossing roll base, so that the coil A is passed through the processes of the embossing roll base and the leveler 9 in a stretched state (under tension). Of course, it is provided as necessary. The checking section 11 is a zone where the state of erasure of residual strain in the coil X, the crank of the decorative coating film by embossing, etc. are checked before proceeding to the next process. Next, the above-mentioned reversing section is for feeding the coil A' from the second floor to the composite line on the first floor, and for turning the front surface of the coil A' into the back surface. .16 and curved guide plates 17, 18, and the guide roller groups 15, 16 can be brought into contact or separated by a switch (not shown). In addition, the curved guide plates 17 and 18 are curved flat plates, and guide pieces 17 and 17 are provided on both sides.
19 is a sensor that speeds up the feeding of the coil when the coil reaches a certain height, and 20 is a second loop section between the curved guide plate 18 and the composite line u. Loop coil A' in the zone,
It functions as an escape between the embossed lines 1. The compounding line 13 also includes a pinch roller or guide roller 21, a molding machine 22 for forming the embossed coil ,
Similar to a cure oven, cutters 41 are arranged in a straight line. To explain in more detail, the molding machine 22 has a coil A'
is formed into a single or double width (not shown), for example as shown in FIGS. 3(a) to (i),
The preheater 23 heats the coil λ to 30 to 110°C. In addition, the discharge section 25 applies a self-adhesive foamable reaction mixture P (hereinafter simply referred to as a mixture) to the back side (one side) of the coil A', for example, by a discharge method equipped with a rotating blade, by a spray gun method (air, It is intended to be supplied either by airless) or by injection method. The mixture P is a thermosetting resin, for example, a polyurethane resin, and the uncoiler 2 mounted on the frame on the 22nd floor of polyurethane resin.
Back material B1 wound around 7, such as coil, asbestos paper, kraft paper, aluminum foil, plastic sheet, etc.
When one or more laminated materials such as asphalt felt are guided onto the mixture P, it is guided correspondingly onto the coil A', and depending on the state of the mixture P, the backing material B is brought into contact with the mixture P. The timing for (more effectively utilizing the so-called self-adhesive properties of the mixture) and the mixture P
It has the function of averaging the dispersion unevenness. Its configuration includes one roller or Figure 4(a) -
(It has the configuration shown in el. That is, (a)
The figure shows rollers 26a+, 26a21. . [
d) The figure shows [a) the roller 26a in the guide shown in the figure.
11. ,,． 26an is a guide in which a candy-like spreading plate 28 is interposed between the rollers 26a (Fig. 81 is a guide in which the rollers 26 are arranged between the gap regulating plate/spreading plate 28a and the roller group plate as shown in the figure). The cured oven toughness is transported with the mixture P interposed between the coil A' and the back material B, and the mixture P is reacted and foamed in a favorable environment, and is formed into a sandwich plate S of a predetermined thickness. More specifically, the cure oven dish is composed of a mold 31 and a cover 39, and the mold 31 is composed of a lower roller group 32, an upper roller group 33, and a heater 34 installed below the lower roller group 32. Drive shaft 35 and belt 36
It is composed of a pulley 37, a gear 38, a cover 39, and a motor 40. To explain further, as partially extracted and shown in FIG. 5, the upper and lower roller groups 33.3Z are arranged rollers formed to form a mold that matches the cross-sectional shape of the sandwich plate S. The drive shaft 35 is a through shaft and drives the upper and lower roller groups 33 and 32. In addition, the heater 34 keeps the inside of the mold at a temperature of 20 to 110°C to complete the reaction of the mixture P within a predetermined time, and
It is for exhibiting predetermined physical properties. Furthermore, the pulley 37 is fixed to the drive shaft 35 and the main shaft 32a of the lower roller group 32, and the gear 38 is a driving wheel and the gear 38a is a driven wheel. A gear made of plastic and heat-resistant material. In addition, the cover 39 keeps the inside of the mold warm and does not release trichloromonofluoromethane released during the reaction of the mixture P, or carbon dioxide gas, -carbon oxide, etc. released from the heating device into the working environment for safety and hygiene reasons. and to obtain more effective heat retention curing. In addition, for the person of type 31, the exit parts 31a and 31b
However, the structure is such that the leakage of gas within the mold 31 is prevented to the maximum extent possible. Further, the cutter 41 cuts the sandwich-structured composite band S into a predetermined length while it is running. Furthermore, the rotating roller 42 is a continuous sandwich plate S.
The control panel 43 controls the communication between the embossing line 1 and the compounding line U.The control panel 43 controls the communication between the embossing line 1 and the compounding line U.The control panel 43 controls the communication between the embossing line 1 and the compounding line U. Digital, depiction, etc. Further, the secondary forming machine 44 is used to form side edges in the final stage of the cross-sectional shape of the coil A, or to divide the sandwich plate S having a double width.

Next, the operation of the sandwich plate manufacturing apparatus according to the present invention will be explained. The pinch roller 7, embossing roll group, leveler 9, and tensioning pinch roller 10 are rotating at a speed of 20 m/min. On the other hand, the composite line U is set at a speed synchronized with the embossed line 41, and the preheater 2
3 is heated to 80°C, the cure oven Kawauchi is heated to 90°C, the discharge part 25 is set to be turned on and off depending on the presence or absence of the coil A by the control panel 43, and the cutter 41 is set to be turned on and off while the sandwich plate S is moving. It is controlled so that it cants to the shaku. Note that a belt (not shown) that is faster than the composite line U is interposed between the secondary forming machine 44 and the cutter 41. Therefore, the coil A attached to the uncoiler 4 is sequentially transferred to the loop portion 6 via the pinch roller 5.
send. Next, the coil A is guided to the pinch roller 7 via the loop section 6. Next, the coil A is fed to the embossing roll l via the pinch roller 7. Also,
In the emboss roll group, for example, an emboss pattern consisting of concave portions α and convex portions β as shown in FIG. 6 is continuously formed. The coil A' that has left the embossing roll 1 is fed to the leveler 9 via a conveyance roller lla.

Next, the coil A is stretched by a tension pinch roller 10 to correct any residual strain caused during embossing by a leveler 9, and then fed to a reversing machine U. A group of guide rollers 14.15.1 are attached to the coil that has passed through the reversing machine U.
6. Level sensor air 9 via curved guide plate 17.18
It is fed to the compounding line on the first floor via the second loop section 20 where there is a. Therefore, the coil is formed into a cross section as shown in FIGS. 3(a) to 3(1) via a forming machine 22, and then fed to a preheater 23. The preheater 23 heats the coil X to about 80° C. and feeds it to the entrance 31 a of the mold 31 via the guide/pinch roller 24 . Further, the mixture P in the middle of reaction and foaming is discharged from the discharge part 25 onto the back surface of the coil X, and the back material B is guided and laminated thereon via the guide 26.

Note that the discharged mixture P is spread by the guide 26 and is regulated to a certain thickness.

Next, in the mold 31, the mixture P reacts and foams, changing to, for example, cream time, gel time, and rise time, and from the outlet 31b, sandwich panels S having a shape as shown in FIG. 7(a) are continuously sent out. be done.

Next, the sandwich plate S is cut into a predetermined length using a cutter 41, and one side edge thereof is formed using a secondary forming machine 44 as shown in FIG. 7(b) to produce a product. It is. Note that rolls for forming the decorative surface in a concave shape can also be arranged downstream of the secondary forming machine 44.

What has been described above is only one embodiment of the sandwich board manufacturing apparatus according to the present invention, and FIGS.
(It can also be formed as shown in C1.

That is, FIG. 8 shows a case where the mixture P is discharged onto the back material B. In addition, FIGS. 9(a) to (C)
is the shape of the coil A, and it is also possible to manufacture a sandwich plate by using the coil A which is in a simple plate shape as shown in figure (a), or in a simple gutter shape as shown in figure (bl, (C1). , a pinch roller 6a and a heater 6b are formed between the feeding section 3 and the pinch roller 7 as shown by the dashed line, and the coating film is heated to 20 to 60°C before embossing, so that the decorative coating film is peeled off. It is also possible to completely prevent fire from causing cracks, damage, cranks, shrinkage, etc.Also, although not shown, type 3
1 can also be formed from a steel belt or a caterpillar. Furthermore, the pinch rollers 21, 24 and the sensor 19 can be removed, or the reversing section can be constructed entirely of a roller group. In addition, cutting of the backing material B is detected by intervening a detector 45, and accordingly, the above-mentioned discharge part 25
It is also possible to generate a signal to stop the operation.

As described above, according to the sandwich plate manufacturing apparatus according to the present invention, ■During embossing, a constant tension is applied to the coil, so that the uneven pattern does not shift during embossing. , a beautiful uneven pattern can be formed. ■Residual strain during embossing can be easily removed by passing it through a leveler, so it will not be twisted or twisted.

■Loop parts are provided on each of the embossed line and composite line, allowing for smooth connections between lines. ■The coil reverses itself by drawing a U-shaped trajectory, so it is natural.

■Since it has a two-story structure, the line can be made more compact. ■Since the coil is heated and the mixture is then discharged, the mixture can be reacted and foamed in a good condition, and a core material with a uniform foam structure can be formed between the coil and the backing material. ■Since the inside of the mold is almost sealed except for the exhaust gas outlet and the sandwich plate entrance and exit, heat retention is improved, and leakage of harmful gases and combustion gases into the working environment is reduced, greatly improving worker safety and hygiene. It can be improved.

■Since the timing of contact between the backing material and the mixture can be easily and freely selected, the backing material can be reliably bonded and the strength of the sandwich board can be greatly improved.

■The embossing line and compounding line are controlled via the control panel, resulting in high yields. [Phase] Since complex shapes are secondary-formed in the final step, it is possible to easily form a double-width sandwich plate by molding the mixture and finally molding the edges. It has the following characteristics.

[Brief explanation of the drawing]

FIG. 1 is a schematic configuration diagram showing an embodiment of the sandwich board manufacturing apparatus according to the present invention, FIG. 2 is a perspective view showing a leveler, and FIG.
Figures (al to i) are explanatory diagrams showing an example of forming a thin metal plate, Figures 4 (a) to (e) are explanatory diagrams showing an example of a guide, and Figure 5
The figure is an explanatory diagram showing a part of Cure Open in cross section.
The figure is a perspective view showing an example of an uneven pattern formed by embossing, FIGS. 7(a) and (b) are sectional views showing an example of a sandwich board manufactured by the manufacturing apparatus according to the present invention, and FIG. , and FIGS. 9A to 9C are explanatory diagrams showing other embodiments. Top... mount, 2-... embossing line, work... embossing roll, fertilizer... reversing part, Listening... Composite line,
22... Molding machine, Separate... Cure oven, 31...
- Mold, 43... Control panel, 44... Secondary molding machine. Patent applicant IG Technology Research Institute 3,''1'-'-□--n (e) Name δ Illustration 9 Ward voice (b'l A-1

Claims (1)

[Claims] (1) In a device that manufactures a sandwich board in which a core material made of synthetic resin foam is interposed between a front material made of a thin metal plate and a back material made of a synthetic resin foam, the thin metal plate is fed to the second floor of a two-story frame. a thin metal sheet feeding section consisting of an uncoiler and a pinch roller; a first loop section for accommodating the thin metal sheet fed from the feeding section in a slack state and adjusting between the front and rear processes; and the first loop. An embossing line arranged in a straight line in the following order: a pinch roller that also serves as a guide placed after the roller, an embossing roll that applies a desired uneven pattern to the thin metal sheet sent from the roller, and a leveler placed after the roll. and a reversing section that greatly curves inward and inverts the thin metal sheet fed from the leveler between the two-story frame and the first floor, and a second loop that loops the thin metal sheet fed from the reversing section.
a loop part, a molding machine that molds a thin metal plate into a predetermined shape,
A preheater that heats the formed metal thin plate to 30 to 110°C, a discharge section that reacts with the metal thin plate sent out from the preheater or the heated back material, and discharges the plastic foam raw material that is in the process of foaming, and the back side. A cure oven that has a guide that guides and places the material onto a thin metal plate, a mold that conveys the raw material with it interposed between the thin metal plate and the backing material, and reacts and foams the raw material to regulate it into a predetermined shape. and a cutter for cutting the sandwich panel sent out from the curing oven into a fixed length are arranged in a straight line, and a composite line is installed on the first floor almost directly below the line. Board manufacturing equipment.