FI128034B - Method for the production of insulation blocks - Google Patents

Abstract

A method for producing insulating blocks consisting of ingot shells (1, 3) and insulating blocks (2), wherein the ingot shells (1, 3) are made in a mold, in which the insulating shells (2) are also placed, removed from the mold and then transported to a dryer cure. The invention is implemented in that the ingot shells (1, 3) and the insulating pieces (2) are manufactured and then transported to the drying plant (C) on the same washer (4) as separate parts, and after the drying place the ingot shells (1, 3) and insulating pieces (2) together.

Description

METHOD FOR MANUFACTURE OF INSULATION CABLES

The present invention relates to a process for the production of insulating blocks, which consists of ingot shells and insulating blocks, in which the shells are produced in a mold in which insulating blocks are also placed.

The invention thus relates to the manufacture of bonded eris10 powerboards for use in construction. The ingot manufacturing process can be roughly divided into four main stages: pulping, ingot, drying plant packing station. A further step in the production of insulating ingots is to attach the insulator to the ingot shells. This has traditionally been done either by means of a forging machine by joining the shells and the insulator with a me15 mechanical connection, or alternatively by a separate line where the insulating part is added, for example, by foaming or gluing.

Ingots are capable of producing insulating ingots, in which the insulating piece and ingot shell are mechanically joined together, for example, by a lo20 tailgate connection. In the ingot making process, the ingots are vibrated with a forging machine onto the washers, where they are transported to the drying chambers, where they are dismantled when they have reached sufficient strength. In addition to the ingot, an integral part of the process is the mold which defines the dimensions and appearance of the ingot.

US 4584043 and EP 2256264 A1 disclose conventional solutions in which the mold is used only for casting casings in the manufacture of insulating blocks. The insulation is fed into the process at later stages.

The object of the invention is to utilize the mold and the ingot production line in a new way. The process according to the invention is characterized in that after casting, the ingot shells and insulating pieces are removed from the mold and transported to the dryer on the base plate as separate parts, and after the dryer the glue is applied to the bonding spaces between the ingots and the insulating pieces.

20145871 prh 25 -06- 2019

Preferred embodiments of the method according to the invention are characterized in what is defined in the dependent claims 2 and 3. 5 The idea of the invention is thus to produce glued insulating blocks by utilizing a so-called. as much of the normal ingot manufacturing process as possible. In this way, the benefits of glued insulating blocks can be achieved without a separate investment in a line where the insulating blocks and ingot shells are sorted for gluing. 10 The invention will now be explained in more detail by means of preferred embodiments with reference to the accompanying drawings, in which: 15 Fig. 1 is a schematic diagram of a block making line according to the invention. Figure 2 shows a known way of joining ingot shells and insulating pieces together. 20 Figure 3 shows a method of grouping ingot shells and insulating pieces according to the invention. Figure 4 shows a sizing station. 25 Figure 5 shows a press station prior to pressing. Figure 6 illustrates a compression station after compression has taken place. 30 Fig. 7 shows the same as Fig. 5, but viewed from above. Fig. 8 shows the same as Fig. 6, but viewed from above.

20145871 prh 25 -06- 2019

Thus, Fig. 1 shows a considerably simplified production line for insulating blocks. Not all steps are explained here, as most of them are known in the art. In principle, the line operates by introducing into the ingot machine A, which has a mold, a hark5 coma from a mixer B located above the ingot, although illustrated here. Insulation pieces are also introduced into the mold A of the ingot machine. The mold has spacers that prevent ingots and insulating pieces from sticking during casting.

After casting, the block shells 1, 3 and the insulating blocks 2 are detached from the mold to the washer 4, on which the block shells and the insulating blocks are disjointed from each other (Fig. 3). Thus, three insulating blocks are produced here at a time. Each group 1, 2, 3 eventually forms one insulating block. Block shells 1 and 3 are denoted by different reference numerals 15 because they are of different sizes in this case.

Fig. 2 illustrates a known method of manufacturing insulating ingots, in which the ingot shells and the insulating piece are mechanically joined to each other, for example by a salmon tail connection. So this pairing is already done in 20 molds. Again, three insulating blocks are produced at a time.

After the ingot shells 1, 3 and the insulating pieces 2 have been removed from the mold to the washer 4, they are conveyed on top of the washer to the dryer C 25 where the ingots harden (Fig. 1). This part of the process is recycled in the same way as in any ingot making process except that the insulating pieces 2 are recycled as loose pieces.

After the dryer, the gluing station L and the pressing station P (Fig. 1) are installed. Figure 4 shows a gluing station L into which ingot shells 1, 3 and insulating pieces 2 are introduced on a washer 4 carried by a conveyor 6. The gluing station L thus utilizes the positioning of the insulating pieces 2 and the ingot shells 1, 3 on the washer 4 35 by the ingot machine A so that the glue is applied to only one piece to be glued. This eliminates the need to reposition insulating blocks and ingot shells before gluing. Then the temperature of the pieces to be glued together is automatically the same. The gluing station L has nozzles 5 for applying the glue to the spaces which are glued together.

Figures 5 and 6, in turn, illustrate the operation of the press station P. Thus, the pressing station P is located immediately after the bonding station L. The ingot shells and insulating pieces are thus brought on top of the washer 4 by conveyor 6 to the pressing station P. The pressing station has two opposed pressing members which move towards one another and cross the adhesive surfaces together. The result is three blocks of insulation.

After the gluing station, the insulating blocks are transported on a washer 4 to a packing station, where they are palletized to the desired packing bases and packed in the desired packing size 15.

It will be apparent to one skilled in the art that the invention is not limited to the above embodiments, but may vary within the scope of the appended claims. For example, glue feeding and squeezing can be performed as a continuous process, or the washer can be stopped at these positions for the duration of the operation.

If necessary, the symbols which may be presented in the specification together with other characteristics may also be used separately from one another.

Claims (3)

PAT E NTTI LOOKS AT M U KS ET 1. A process for the production of insulating blocks which 5 ingots consist of ingot shells (1, 3) and insulating blocks (1) 2), in which the ingot shells (1, 3) are made in a mold in which insulating pieces (2) are also placed, characterized in that after casting, the ingots (1, 3) and insulating pieces (2) are removed from the mold and transported dry10 moon (C) 4) as separate parts, and that after the dryer, the glue is applied to the bonding spaces (1) of the ingot shells (1, 3) and the insulating pieces (2) in the gluing station (L). Method according to claim 1, characterized in that, after the gluing station (L), the parts are pressed together in the clamping station (P). Method according to claim 2, characterized 20 means that the ingot shells (1, 3) and the insulating blocks (2) are stopped during compression.