KR-20260063879-A - Vacuum insulation manufacturing method

KR20260063879AKR 20260063879 AKR20260063879 AKR 20260063879AKR-20260063879-A

Abstract

The present invention relates to a method for manufacturing a vacuum insulation material. According to one aspect of the present invention, the method for manufacturing a vacuum insulation material comprises: a core material input step in which a core material having insulation performance is introduced into a vacuum chamber in which a first chamber, a second chamber, and a third chamber having different vacuum degrees are connected to each other and integrated; and a vacuum insulation material generation step in which the core material is introduced into the first chamber, heated by far-infrared rays inside a vacuum state to remove moisture, moved to the second chamber in a vacuum state, where an outer shell material wraps the core material and heat-bonds both ends of the outer shell material, moved to the third chamber in a vacuum state, and the third chamber is restored to atmospheric pressure.

Inventors

김현철
김영준
선창건

Assignees

템프체인 주식회사

Dates

Publication Date: 20260507
Application Date: 20241031

Claims (6)

A core material insertion step in which a core material having thermal insulation performance is inserted into an integrated vacuum chamber in which a first chamber, a second chamber, and a third chamber having different vacuum degrees are connected to each other; and A method for manufacturing a vacuum insulation material comprising: a vacuum insulation material generation step in which the core material is introduced into the first chamber, heated by far-infrared rays in a vacuum state to remove moisture, moved to the second chamber in a vacuum state, where an outer layer material wraps the core material and heat-bonds both ends of the outer layer material, and moved to the third chamber in a vacuum state, where the third chamber is restored to atmospheric pressure.
In Article 1, The above vacuum chamber further includes a moving device extending from the inside of the first chamber to the inside of the third chamber, and The above vacuum insulation material generation step comprises a heating vacuum drying step in which, when the core material introduced into the first chamber is seated on the top of the moving device, a first door connecting the first chamber to the outside is closed, the interior of the first chamber is changed to a vacuum state, and moisture of the core material is removed using far-infrared rays.
In Article 2, The inner side of the first chamber further includes an outer shell transfer device formed below the moving device, wherein the outer shell material introduced into the first chamber is seated on the upper end of the outer shell transfer device. When the above heating vacuum drying step is completed, a second door connecting the first chamber and the second chamber is opened, and The above outer shell transfer device moves the outer shell material upward and places it on the top of the moving device, and the core material moves to the top of the outer shell material, and A method for manufacturing a vacuum insulation material, comprising: a skin material input step in which the skin material and the core material are moved to a second chamber according to the moving device.
In Paragraph 3, The above second chamber further includes an upward joining machine and a left and right joining machine for thermally joining the outer shell material, and The above vacuum insulation material generation step is, A method for manufacturing a vacuum insulation material comprising: a core material packaging step in which the upper joining device lifts the outer material upwardly and joins it to the core material to form a cylindrical shape open in the left and right directions, and the left and right joining device presses the outer material positioned in the left and right directions of the core material downward to join the outer material formed in a circular shape into a straight shape.
In Paragraph 4, The above core material packaging step is, When the above-described upward bonding device lifts the outer shell material to wrap the core material, both ends of the outer shell material are bonded so as to protrude upward from the core material, thereby forming an outer shell bonding line. A method for manufacturing a vacuum insulation material, characterized in that the outer skin bonding line is laid down by the left and right bonding machine, and a new outer skin bonding line is formed on the left and right sides of the core material.
In Article 5, The above vacuum insulation material generation step is, A low-vacuum packaging step in which a third door connecting the second chamber and the third chamber is opened, the core material combined with the outer shell material is moved into the third chamber in a vacuum state, the third door is closed, and the interior of the third chamber is restored to an atmospheric pressure state, and A method for manufacturing a vacuum insulation material comprising a discharge step for discharging the vacuum insulation material in the above low-vacuum packaging step.

Description

Vacuum insulation manufacturing method The present invention relates to a method for manufacturing a vacuum insulation material, and more specifically, to a method for manufacturing a vacuum insulation material that can extend the lifespan of the vacuum insulation material by removing moisture generated when drying the vacuum insulation material to produce a vacuum insulation material with a minimized moisture content. Generally, cold storage boxes or insulated boxes are used for transporting medical items, such as the storage of organs, or food products placed inside, and by connecting multiple panels to form a single box, the items stored inside can be transported while being insulated from the outside. However, conventional cold storage boxes or insulation boxes have a problem in that when panels are connected, a large amount of heat is released at the connection points, causing the items inside the insulation box to exchange heat with the outside. In addition, when manufacturing cold storage boxes or insulation boxes, if insulation material is vacuum-packed, moisture is generated between the insulation material and the packaging film or inside the box, which leads to a decrease in the box's performance and a reduced lifespan. Accordingly, Korean registered patent No. 10-2037044 describes a vacuum insulation panel in which multiple insulation cells are integrally connected to form an unfolded shape, and the insulation structure of the contacting edges is improved to prevent heat loss by forming an insulation compartment. It also provides excellent space utilization by offering a bending deformation rate close to a right angle between insulation cells and has different insulation performance by simply changing the thickness of the insulation cells. However, when connecting the insulation cells, the insulation cells manufactured in a vacuum state are compressed against atmospheric pressure, which can cause deformation of the inner and outer layers of the insulation cells. Furthermore, when connecting such insulation cells, the connection area is not tightly sealed, making it difficult to completely seal, and thus there is a problem in that minute heat exchange occurs at the connection area. Accordingly, Korean registered patent No. 10-1938329 relates to a method for manufacturing vacuum insulation material with improved moisture content. In order to maintain excellent insulation performance for a long time by vacuum-treating the porous insulation material and then heat-treating it in a vacuum state to vaporize and evaporate the moisture remaining inside the core material in a vacuum state, the core material (110) is heat-dried before being inserted into the outer material (30), and the dried core material (110) is inserted into the outer material and vacuum-treated to package the core material (110) into the outer material (30). Korean registered patent No. 10-1938329 describes a vacuum treatment in which a core material is introduced into an outer shell material (30) while the outer shell material (30) is exposed to the atmosphere, and when the core material (110) and the outer shell material (30) are combined, fine moisture may be generated between them, which causes a problem of increased moisture content. In other words, Korean registered patent No. 10-1938329 combines a core material and an outer layer and removes internal moisture by applying heating heat. However, since the core material heated in a vacuum is combined with the outer layer in the atmosphere, a small amount of moisture is generated, which increases the moisture content of the vacuum insulation material, thereby reducing performance and shortening its lifespan. FIG. 1 is a schematic diagram of a method for manufacturing a vacuum insulation material according to one embodiment of the present invention. FIG. 2 is a flowchart of a method for manufacturing a vacuum insulation material according to one embodiment of the present invention. FIG. 3 is a flowchart of the vacuum insulation material generation step according to one embodiment of the present invention. FIG. 4 is a cross-sectional view of a vacuum insulation material according to one embodiment of the present invention. FIG. 5 is a cross-sectional view of a vacuum chamber for producing a vacuum insulation material according to one embodiment of the present invention. FIG. 6 is a drawing of the interior of a first chamber according to one embodiment of the present invention. FIG. 7 is a drawing of fixing an outer shell material to the top of a core material according to one embodiment of the present invention. FIG. 8 is a side view of an outer shell material fixed above a core material according to one embodiment of the present invention. FIG. 9 is a side view of an outer shell material fixed above a core material according to one embodiment of the present invention. FIG. 10 is a drawing in which an outer shell seals a core material according to one embodiment of the present inventi