JPS5837900B2 - Method and apparatus for producing laminated insulation mats - Google Patents

Description

[Detailed Description of the Invention] The present invention... Concerning the manufacture of insulation materials and similar products made of fibers of mineral materials.

More particularly, the present invention relates to the treatment of continuous blankets of fibrous mineral materials, particularly glass fiber materials.

Insulation materials made from mineral fibers are typically manufactured in blanket form, often coated with a binder to bind the fibers together.

In recent years, the cost of energy has increased by 75Eh. Moreover, due to the shortage of energy supply, the demand for insulation materials has increased.

Additionally, there has been a demand for increasing the thermal resistance value ("R" value) of heat insulating materials.

From about z6 to about 22.9C, which is commonly used to satisfy the need for insulation materials with higher "R" values.
Various methods have been used to produce insulation blankets with thicknesses greater than IrL (about 3 to about 9 inches) thick.

One method traditionally used is to create a laminated insulation product case or a laminated insulation product case by cutting the insulation material into uniformly sized pieces and manually attaching the two pieces in a stack. This is a method of making a mat approximately twice as thick as either of the two.

U.S. Pat. No. 3,824 to Perry et al.
, 086, discloses a method for producing a complete laminated insulation mat by adding layers of fibers from a series of fiber production locations.

Most methods for producing relatively thick insulation materials have the disadvantage of increasing labor costs and requiring large capital investments.

Therefore, there was a need to develop a method that could produce relatively thick insulating matte gold using existing equipment while not increasing the labor costs involved in the process.

A new method of manufacturing laminated insulation mats has been developed.

This method can utilize existing equipment and requires little additional labor expense than currently practiced methods.

In this new method, a continuous blanket of fibrous mineral material is divided into sections in the longitudinal direction K2 or more, and these sections are placed in an overlapping relationship with each other.

In this manner, a laminated mat twice the thickness of the original blanket is formed.

Similar mats that are more than twice as thick can be made using the principles of the present invention.

This method can be carried out continuously.

The step of dividing the blanket and overlapping the divided portions may be performed before the step of curing the binder of the fibrous blanket, or may be performed after the step of curing the binder of the fibrous blanket.

By fully utilizing the principles of the present invention, conventional methods can be improved. A 30 centimeter (12 inch) thick insulation mat can be produced using existing equipment capable of producing a 5 centimeter (6 inch) thick insulation blanket.

According to the present invention, a laminated mat is produced from a moving continuous blanket by dividing the continuous blanket into two or more consecutive sections and placing these sections in an overlapping relationship in contact with each other. A method and apparatus are provided.

According to the invention, the blanket is divided into two continuous parts along the line of its direction of movement. Parts 1 to 7 of these parts are moved to a position with a shape of L/z on the common plane, and these parts 1 to 7 are moved approximately horizontally to the line in the direction of movement of the blanket so that they overlap each other. A method and apparatus are provided for producing a laminated mat by moving a continuous blanket of mineral fibers to form a laminated mat.

In order to move the parts so that they do not form a common plane,
All parts can be placed in an overlapping relationship by moving the part 1 and above uphill and moving the part 1 and above laterally from the line of movement of the blanket.

Each part of the mat can be integrally bonded by applying an adhesive.

After the sections of the blanket are overlapped, they are pressed together to ensure an integral adhesive bond.

The laminated mat formed by this method is cut to a final length convenient for packaging.

The blanket can be divided into 3 or more parts, 1
It should also be understood that these sections can be stacked together to form a stack of two or more stacked packs, but the blanket is divided into two sections, one of which is lifted over the other, and then A method and apparatus for laterally moving to shape a laminated mat is illustrated and described.

The method and apparatus according to the invention are suitable for packaging fiberglass blankets.

Next, one embodiment of the method and apparatus for manufacturing a laminated mat according to the present invention will be described with reference to FIG.

In the figure, a continuous blanket 10 is shown that can be moved on a conventional conveyor 12.

A "continuous plunget" is a continuous unit of blanket trenches or clumps of fibers. That is, it is sent from the fiber source without being cut into small pieces.

As the continuous blanket, a blanket made of continuous fibers is used, but preferably it is made of discontinuous fibers.

This blanket is divided into two parts by the slitting blade 14.

This blade divides the blanket along an imaginary line 16 approximately at the centerline of the blanket.

This blade cuts both ends of the pack to form a flush end.

Although the imaginary lines shown in Figure 2 are straight lines, it should be understood that lines other than straight lines can also be used.

The slitting or splitting action of the blanket divides the blanket into two sections, designated 18L and 18R for purposes of illustration.

Portion 18R is lifted from the height of the conveyor by the guidance of rollers 20 or raised above the height of portion 18L.

When portion 18R is lifted, it has a common plane with portion 18L and LfX. stomach.

The end guide member 22 is moved so that the portion 18R is superimposed on the top of the portion 18L by moving the portion 18R transversely to the parting line.

The guide member may be provided with suitable surfaces, such as flat surfaces, for altering the path of the sections of the blanket.

In this embodiment, one section is lifted and then moved sideways to overlap the top of the other, but two
Is one of the parts lifted because they are not in a common plane? 1 or lowered. and. 2
any of the parts. It should be understood that the principles of the present invention may be useful when the trenches or both are moved laterally to overlap.

After the portion 18R is superimposed on the top of the portion 18L,
The two layers are held in contact with each other to form a laminate pack.

A compression roller 24 may be used to bring sections 18L and 18R into contact with each other.

Alternatively, the portion 18R may be allowed to fall by gravity onto the soil portion 18L.

A continuous strand reinforcing material trench or a layer of sheet material, such as a layer of kraft paper, can be inserted between two adjacent parts.

A caterpillar conveyor 26 can be used to compress the stacked pack.

This conveyor can provide moving force to the laminated mat. Assists in pulling the portion of the fibrous blanket through each step of the process.

After passing the caterpillar conveyor, the laminated mat travels on a suitable conveyor mechanism 28 to reach the packing station.

Using a conventional cutting mechanism such as a chopper 30, cut the laminated mat into a suitable length for easy packaging.

To ensure that the parts are connected to each other. It is preferable to apply an adhesive to one or both of the portions 18L and 18R.
L.

For this reason, a glue manifold 32 of normal design can be provided.

An example of an adhesive that can be used in the method according to the invention is Fuller's K-3121, which is a water-soluble polyvinyl chloride glue.

If desired, a conventional cover material 36, such as foil or paper, can be applied to the laminated pine, as shown in FIG.

As is clear from the above, various modifications can be made to the present invention, but these are included within the scope of the present invention.

[Brief explanation of drawings]

1 is a side view showing an embodiment of an apparatus for forming a laminated mat according to the principles of the present invention; FIG. 2 is a plan view of the apparatus of FIG. 1; and FIG. FIG. 3 is a sectional view taken along line 3-3. 10... Continuous blanket, 12...
・Conveyor, 14...Slitting blade, 18L, 1
8R... part, 20... roller 2
2... End guide member, 24... Compression roller, 26... Caterpillar conveyor, 30...
...Chopper.

Claims (1)

[Claims] 1. It has a predetermined thickness and heat resistance value, and contains a binder dispersed between mineral fibers. a continuous blanket having voids therein while substantially maintaining its predetermined thickness;
dividing the continuous blanket into continuous sections by cutting in the warp direction of the continuous blanket; at least one of the continuous sections substantially maintaining the integrity of the mineral fibers; )') moving in the L direction over the length of another continuous section; simultaneously with the L direction movement;
moving at least one of the continuous sections transversely to the direction of movement of the other continuous sections while substantially maintaining the integrity of the mineral fibers; adhering between the buttons and the sections; 1. A method for manufacturing a laminated heat insulating mat, comprising the steps of applying an agent to adhere and overlap each other, and maintaining a predetermined thickness of each overlapped portion. 2. After applying an adhesive to at least one of the continuous parts formed by dividing the continuous blanket to increase the adhesive force between them, the overlapping parts are compressed within the elastic limit. The method according to claim 1, comprising the step of: 3. The method according to claim K2, wherein the continuous laminated heat insulating mat is cut transversely to a desired length with respect to the direction of movement thereof. 4 A continuous blanket having a predetermined thickness and thermal resistance value along its length, containing a binder dispersed between mineral fibers, and having voids inside is moved in a direction parallel to its length. a cutting mechanism that continuously divides the continuous blanket in the length direction without changing its predetermined thickness and reshapes the continuous portion; and a cutting mechanism that substantially changes the integrity of the mineral fibers. While the fiber L is on the other length part! r:. An apparatus for producing a laminated heat insulating mat from a continuous blanket, characterized in that the conveyor mechanism and a mechanism for moving and overlapping the continuous portions are provided. 5. The apparatus of claim 4, wherein the cutting mechanism includes at least one slitting blade. 6. The apparatus according to claim 4, comprising a mechanism for applying adhesive to one to seven of the parts. 7. The apparatus of claim 6, further comprising a mechanism for cutting the continuous overlapping portions to a final length.