JPH0455843B2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a method for continuously manufacturing sanderch panels, and more particularly, the present invention relates to a method for continuously manufacturing sandwich panels. The present invention relates to a method for continuously producing sanderch panels, which is characterized by foaming and filling a core material and attaching frame members to the four sides of a surface plate.

[Prior Art] In general, as shown in FIG. 10, a method for manufacturing this type of sandwich panel consists of a frame material a disposed around the frame material a and a pair of facing surface plates b, b. The box body is restrained by plywood or other holding means c from the top and bottom and around the periphery, and the foam core material f is inserted inwardly through the opening d received at a predetermined location of the frame material a. Inject and foam,
Alternatively, as shown in Fig. 11, the face plate material g, g drawn from a pair of coils h, h around which the face plate material g is wound, is drawn from above and below. bring them close to each other, inject and foam a foamable core material f jetted from a nozzle e between the two,
A continuous foaming method is known in which a long laminate in which a core material f is solidified is cut with a saw i at a predetermined position to obtain a panel j.

[Problems to be Solved by the Invention] However, in the former, that is, the batch-type manufacturing method, the assembly and disassembly of mold means such as plywood and presser means c, and the setting of surface plates b, b and frame material a, etc., must be carried out separately. There was a problem that it required a lot of man-hours and there was a limit to automation. In addition, although productivity can be improved in the latter method, i.e., the continuous foaming method, since the cut portion of panel j is left uncut, it not only results in uneven dimensional accuracy but also tends to cause damage during transportation. For example, when a metal surface plate is used, burrs are generated on the cut surface, which is disadvantageous in that a step is required to remove the burrs. Moreover, when constructing a structure, it has also been a cause of lowering the accuracy of fitting. Furthermore, in the latter manufacturing method, it is difficult to assemble the frame material on the four sides of the surface plate during the manufacturing process, so there is a problem in that a separate process for assembling the frame material is required.

This invention was made in view of the above circumstances,
The purpose is to make it possible to continuously manufacture sanderch panels in which a heat insulating core material is filled between a pair of face plates and frame materials are attached to the four sides of the face plate. The purpose is to provide a manufacturing method.

[Means for Solving the Problems] In order to achieve the above object, the method for continuously manufacturing sanderch panels of the present invention includes connecting a plurality of face plates having right-angled bent edges on four sides to each other in the same plane. A group of top and bottom panels are arranged in pairs, one above the other, and are continuously and synchronously supplied so that they face each other with their flat parts facing outward, and at this time, they are connected to the bent edges of the adjacent bottom panels. The top surface plate group is fed along the line by engaging one opposing connecting frame member having a section, and the upper surface plate group is gradually brought closer to each other so as to correspond to each surface plate of the lower surface plate group. ,
The bent edge on the tip side of each upper surface plate is engaged with the above-mentioned connecting frame material located at the front of the line, and the other opposing side frame material is inserted from the side direction immediately in front of the adjacent part of the upper and lower surface plates. The core material is injected between both surface plates at a portion where the upper and lower surface plates are close to each other in parallel with the desired dimensions, and the upper side is injected into one of the connecting frame materials located at the rear of the line. This method is characterized in that the bent edges on the rear end side of the face plates of the face plate group are engaged, and after the core material is foamed and solidified by heating means, the connecting portion of the frame member is cut.

In the present invention, each surface plate of the upper surface plate group does not necessarily have to be connected as long as it is supplied in a connected state and close to the lower surface plate group, for example. They may be supplied while being regulated by a supply guide means, or they may be temporarily connected and supplied using a removable adhesive means such as an adhesive tape.

Further, one of the opposing connecting frame members set in advance on the lower surface plate group may be of any type as long as it can be cut at the connecting part, but it is easy to cut, and It is preferable that the cut portion be easily post-processed after cutting. In addition, if the other opposing side frame material is supplied immediately before the adjacent portion of the upper and lower surface board groups, it should be supplied individually to the side of the surface board, or the frame materials may be connected to each other. It may be connected by adhesive means and continuously supplied to the bent edges of the upper and lower surface plates.

[Effect] The above technical means works as follows.

As mentioned above, by synchronously supplying the upper and lower surface plate groups and bringing them close to each other, with one opposing connecting frame member being locked to the bent edges of the surface plates of the lower surface plate group, The above-mentioned frame material located at the front of the line is attached to the opposing bent edges on the tip side of the upper and lower surface plates, and the other opposing side frame material is attached to the side just before the area where the upper and lower surface plates are adjacent. By supplying the frame members to the other opposing bent edges of the upper and lower surface plates, the frame members are attached.

In addition, core material is injected between both surface plates in the area where the upper and lower surface plates are close to each other in parallel, and a connecting frame material located at the rear of the line is engaged with the opposing bent edges on the rear end side of the upper and lower surface plates. After solidifying the core material using a heating means, by sequentially cutting the connecting portions of each connecting frame material, it is possible to continuously manufacture a sanderch panel having frame materials on all four sides.

[Examples] Examples of the present invention will be described in detail below with reference to the drawings.

FIG. 1 is a schematic side sectional view showing the steps of the method for manufacturing sanderch panels of the present invention, FIG. 2 is an enlarged view of the main parts of the manufacturing apparatus, and FIGS. 3 and 4 are schematic perspective views of the main parts. It is shown.

The manufacturing equipment for the sanderch panel includes a surface plate input section 10, a core material injection section 20, and a core material foaming and solidifying section 3, which are arranged in accordance with the manufacturing process order of the sanderch panel.
0, a cutting section 40 and a panel take-out section 50 are provided. In this case, a conveying means 12 such as a conveyor is disposed in a portion from the top plate input section 10 to the cutting section 40, and an upper surface plate is provided in a portion from the top plate etc. section 10 to the core material injection section 20. A guide conveying means (not shown) is provided for gradually feeding the group 2 toward the lower surface plate group 3. Heartwood injection part 2
0, a nozzle 22 for injecting the core material 6 between the upper and lower surface plates 1a and 1b is arranged so that it can swing left and right and can retreat in the opposite direction to the feeding direction of the surface plate groups 2 and 3 as necessary. has been done. In this case, heartwood 6
is a foam core material having heat insulation, fire resistance and/or non-combustibility, and for example, foamed polyurethane alone or a mixture of foamed polyurethane and aluminum hydroxide is used. In addition, the core material injection part 20 is approximately
It is arranged in a preheating furnace 32 with a temperature atmosphere of 35°C. On the other hand, the core material foaming and solidifying section 30 includes a pair of upper and lower belt conveyors 34, 34 disposed parallel to each other.
It has a structure in which a heater 36 is incorporated. A rotatable saw 42 that can move up and down toward the surface plate is disposed in the cutting section 40 .

Next, a method for manufacturing the sanderch panel of the present invention will be explained.

◎First step In the surface plate input section 10, an upper surface plate group 2 in which a plurality of surface plates 1a, 1a, . 3 and 3 with their respective flat parts facing outward, and the lower surface plate group 3
Connecting frame members 5, 5, . (hereinafter referred to as short side frame members) are engaged to feed the lower surface plate group 3 onto the line of the conveying means 12.

In this case, the short side frame material 5 is made of a material such as vinyl chloride, and its form is as follows:
As shown in FIG. 5, bent edges 1 of the top and bottom panels 1a and 1b are placed on the upper and lower opposing parts of the frame bases 5b and 5b that cover the end surfaces of the top and bottom panels 1a and 1b, respectively.
The lower fitting grooves 5d and 5d are connected to each other by a connecting portion 5a. In this case, the short side frame member 5 does not necessarily have to have the above-mentioned form. For example, the upper and lower fitting grooves 5c and 5d may be connected by connecting portions 5a and 5a, respectively, as shown in FIG. As shown in FIG.
Notches 5e, 5e are provided at the connection part with b, so that it can be easily cut by a cutting means such as a push-off roller 44, or as shown in FIG. 8 or 9, the upper part of the A configuration in which one or both of the matching grooves 5c is omitted is used.

◎Second Step The upper and lower surface plate groups 2 and 3 fed into the face plate input section 10 are continuously synchronized and supplied to the core material injection section 20, and the bent edge 1c of the upper surface plate 1a on the tip side in the feeding direction is are engaged with the fitting grooves 5c etc. of the short-side frame material 5, and are gradually brought closer to each other. direction) bent edge 1c,
Side frame members 7, 7... (hereinafter referred to as long side frame members) are supplied to engage with 1c. In this case, the long side frame material is made of vinyl chloride or the like similar to the short side frame material 5 described above. In addition, the long side frame material 7 is
As shown in FIG. 3, they may be supplied one by one from both sides, or as shown in FIG. It may be supplied by a guide means (not shown).

◎Third Step At a location where the upper and lower side plate groups 2 and 3 are close to each other in parallel with desired dimensions, the nozzles 22 provided on both surface plates 1a and 1b swing from side to side and move back as necessary to spray the core material 6. By spouting, the core material 6 is injected into both the surface plates 1a and 1b, and the core material 6 is injected into both the surface plates 1a and 1b.
When a and 1b become parallel to each other on the guide conveyor 14, the core material 6 is completely injected between both surface plates 1a and 1b. In this case, a part of the intermediate portion of the short side frame material 5 may be cut out in advance or this frame material 5 (only on the rear end side) may be divided into two so as not to interfere with the above-mentioned movement of the nozzle 22. You can also do it. Then, the bent edge 1c of the upper surface plate 1a on the rear end side in the supply direction is engaged with the fitting groove 5c of the short side frame material 5, etc., and the core material is supplied to the foam solidification section 30.

◎Fourth step The upper and lower surface plate groups 2 and 3 supplied to the core material foaming and solidifying section 30 are heated to approximately 60°C by the heater 36, which is a heating means.
The core material 6 is foamed and solidified by being heated at a temperature of .degree.

◎Fifth Step The upper and lower surface plate groups 2 and 3 filled with the foamed and solidified core material 6 are lowered while rotating in the cutting section 40, and the short side frame materials 5 are connected by the cutting saw 42 that moves horizontally. The portion 5a is cut to form the sandwich panel 9, which is taken out from the panel take-out section 50. In this case, only the connecting portion 5a is connected to the saw 42.
It is preferable to select the shape of the short side frame material 5 and the saw 42 in advance so that it can be removed with saw teeth.

In the above embodiment, the case where the flat portions of the surface plates 1a and 1b are flat has been described, but this is not necessarily limited to manufacturing a sanderch panel having a flat surface plate, and the flat portion may have a corrugated cross section. A sanderch panel can be formed in the same manner for the surface plate.

[Effects of the Invention] As explained above, according to the method for continuously manufacturing sanderch panels of the present invention, core material is injected between the continuously supplied groups of upper and lower face plates, and at the same time, the four sides of the face plates are After attaching the frame members, by cutting the connecting portions of the connecting frame members, it is possible to manufacture a sanderch panel with frame members attached on all four sides, so that the following effects can be obtained.

(1) Since the frame material can be attached to all sides at the same time as the core material is poured, there is no need to provide a separate process for attaching the frame material, which reduces the number of manufacturing steps and operations, and improves productivity.

(2) Since there is no burr or core material exposed on the cut surface of the panel, it is possible to improve the dimensional accuracy of the panel, and also to improve the accuracy of fitting during erection.

[Brief explanation of the drawing]

Figure 1 is a schematic side sectional view showing the manufacturing process of the method for manufacturing sanderch panels of the present invention, Figure 2 is an enlarged view of the main part of Figure 1, and Figures 3 and 4 are the main parts of the manufacturing process. FIG. 5 is a perspective view showing an example of the frame material of the present invention; FIGS. 6 to 9 are sectional views showing other forms of the frame material; FIGS. The figure is a cross-sectional view showing another method of manufacturing a conventional sandwich panel. Description of symbols, 1a...upper surface plate, 1b...lower surface plate, 1c...bent edge, 2...upper surface plate group,
3... Lower surface plate group, 5... Connection frame material (short side frame material), 5a... Connection portion, 6... Core material, 7... Side frame material (long side frame material) , 10... surface plate input section,
20... Core material injection part, 30... Core material foam solidification part,
40...cutting section, 42...saw, 44...pushing roller.

Claims (1)

[Claims] 1 A group of face plates in which a plurality of face plates with right-angled bent edges formed on four sides are connected to each other in the same plane, are arranged in pairs above and below, and are continuous so as to face each other with their flat parts on the outside. The surface plates are fed in synchronization, and at this time, one opposing connecting frame member having a connecting portion at the bent edge of the lower adjacent face plates is engaged to feed the face plate group on the line. , the upper surface plate group is gradually brought closer to each other so as to correspond to each surface plate of the lower surface plate group, and the bent edge on the tip side of each upper surface plate is engaged with the above-mentioned connecting frame material located in front of the line. ,
The other opposing side frame material is supplied from the side direction immediately in front of the adjacent portions so as to engage with the bent edges of the upper and lower surface plates, and the upper and lower surface plates are both parallel to each other at desired dimensions and adjacent to each other. A core material is injected between the surface plates, and the bent edge on the rear end side of the surface plate of the upper surface plate group is engaged with one of the connecting frame members located at the rear of the line, and the core material is foamed by heating means. A continuous manufacturing method for a sanderch panel, characterized in that after solidification, the connecting portions of the frame members are cut.