Manufacturing method of edge-folding-free vacuum insulated panel

Abstract

The invention discloses a non-flanging vacuum insulation panel manufacturing method which comprises the following steps: S1, placing a lower barrier film in a lower die frame, then placing a core material on the lower barrier film, and then placing an upper barrier film on the core material; s2, under the atmospheric pressure, a pressing mechanism presses downwards to apply force to the upper barrier film, and the core material is compressed; s3, the left side of the lower barrier film and the left side of the upper barrier film are heat-sealed together through the heating mechanism, and the right side of the lower barrier film and the right side of the upper barrier film are heat-sealed together through the heating mechanism; s4, the pressing mechanism moves upwards to leave the upper barrier film, and the core material rebounds; s5, the vacuum insulation panel is vacuumized; s6, after vacuumizing is completed, the heating mechanism conducts heat sealing on the upper barrier film and the lower barrier film to form a left sealing edge and a right sealing edge; s7, the heating mechanism carries out heat sealing on the upper barrier film and the lower barrier film to form a front sealing edge and a rear sealing edge; and S8, after vacuum breaking, the manufactured vacuum insulation panel is taken out. The manufactured vacuum insulation panel is small in edge sealing width, edge folding is not needed, and therefore cost is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of vacuum insulation panels, and in particular to a method for manufacturing a vacuum insulation panel without folding edges. Background Art

[0002] Vacuum insulation panel is a type of vacuum insulation material. It can effectively avoid heat transfer caused by air convection, thereby significantly reducing thermal conductivity. It is environmentally friendly, efficient and energy-saving, and is widely used in building insulation, refrigerators, freezers and refrigerated containers.

[0003] In the prior art, in the process of manufacturing vacuum insulation panels, in order to facilitate the placement of the core material in a free and fluffy state into the barrier bag, a larger barrier bag needs to be used. When the core material is vacuum-sealed and heat-sealed, the core material is compressed and its volume is reduced, resulting in a large distance between the heat-sealed edge and the core material and a wide edge. After the vacuum insulation panel is manufactured, the excess edge needs to be folded before use, which consumes a lot of manpower for manual folding and has high production costs. Summary of the invention

[0004] Based on the above problems existing in the prior art, the purpose of the embodiments of the present application is to provide a method for manufacturing a vacuum insulation panel without folding edges, wherein the vacuum insulation panel manufactured by the method has a small edge sealing width and does not require folding edges, thereby reducing costs.

[0005] The technical solution adopted by the present application to solve the technical problem is: a method for manufacturing a vacuum insulation panel without folding edges, comprising the following steps:

[0006] S1, placing the lower barrier film in the lower mold frame, then placing the core material on the lower barrier film, and then placing the upper barrier film on the core material, so that the edge of the upper barrier film is aligned with the edge of the lower barrier film;

[0007] S2, under atmospheric pressure, the pressing mechanism presses down to apply force to the upper barrier film and compresses the core material, and the pressing strength of the pressing mechanism is not less than 0.1 MPa;

[0008] S3, the heating mechanism heat-seals the left side of the lower barrier film and the left side of the upper barrier film together to form a first seal edge, and a first gap is formed between the first seal edge and the left side of the core material; the heating mechanism heat-seals the right side of the lower barrier film and the right side of the upper barrier film together to form a second seal edge, and a second gap is formed between the second seal edge and the right side of the core material; wherein the heat-sealing temperature is 120 degrees Celsius to 180 degrees Celsius, and the heat-sealing time is 10 seconds to 45 seconds;

[0009] S4, the pressing mechanism moves upward and away from the upper barrier film, the core material rebounds, the first gap shrinks, and the inner side of the first sealing edge abuts against the left side of the core material; the second gap shrinks, and the inner side of the second sealing edge abuts against the right side of the core material, forming a pre-assembled plate with semi-finished products sealed on both sides;

[0010] S5, vacuumizing the semi-finished pre-assembled board with both sides sealed, and extracting the gas in the core material from the front and rear ends of the upper barrier film and the lower barrier film;

[0011] S6, after the vacuum is drawn, in the vacuum chamber, the pressing mechanism moves downward and presses on the upper barrier film again to compress the core material and re-form the first gap and the second gap, and the pressing strength of the pressing mechanism is not less than 0.1 MPa; the heating mechanism heat-seals the first gap to form a third edge seal, and the third edge seal and the first edge seal together form a left edge seal, and the heating mechanism heat-seals the second gap to form a fourth edge seal, and the fourth edge seal and the second edge seal together form a right edge seal; wherein the heat sealing temperature is 120 degrees Celsius to 180 degrees Celsius, and the heat sealing time is 10 seconds to 45 seconds;

[0012] S7, the heating mechanism heat-seals the front side of the upper barrier film and the front side of the lower barrier film together to form a front edge seal, and the heating mechanism heat-seals the rear side of the upper barrier film and the rear side of the lower barrier film together to form a rear edge seal;

[0013] S8, after breaking the vacuum, take out the manufactured vacuum insulation panel.

[0014] Furthermore, the lower mold frame includes a frame bottom plate, a first positioning bar and a second positioning bar, the first positioning bar is arranged on the frame bottom plate, the second positioning bar is arranged on the frame bottom plate, and the second positioning bar is arranged parallel to the first positioning bar.

[0015] Furthermore, the heating mechanism includes a first left heating plate, a second left heating plate, a first right heating plate and a second right heating plate. The first left heating plate is arranged on the first positioning strip, the second left heating plate is arranged on the first positioning strip and arranged side by side with the first left heating plate; the first right heating plate is arranged on the second positioning strip, the second right heating plate is arranged on the second positioning strip and arranged side by side with the first right heating plate.

[0016] Further, in step S3, the first left heating plate heat-seals the left side of the lower barrier film with the left side of the upper barrier film to form a first sealed edge, and the first right heating plate heat-seals the right side of the lower barrier film with the right side of the upper barrier film to form a second sealed edge.

[0017] Furthermore, the pressing mechanism includes a plate body, a spring and a pressing plate. A first side pressing plate is formed on one side of the plate body, and a second side pressing plate is formed on the other side of the plate body. One end of the spring is arranged on the plate body, and the pressing plate is connected to the other end of the spring. The pressing plate is located between the first side pressing plate and the second side pressing plate.

[0018] Furthermore, the first side pressure plate includes a first elastic arc segment and a first horizontal clamping segment, and the first elastic arc segment and the first horizontal clamping segment are integrally formed; the second side pressure plate includes a second elastic arc segment and a second horizontal clamping segment, and the second elastic arc segment and the second horizontal clamping segment are integrally formed.

[0019] Furthermore, the first elastic arc segment is concave inwards, and the second elastic arc segment is concave inwards.

[0020] Furthermore, a mounting groove is arranged on the plate body, one end of the spring is arranged in the mounting groove, and the other end of the spring protrudes from the mounting groove.

[0021] Furthermore, the height of the first positioning strip is equal to the height of the second positioning strip, and the height of the second positioning strip is equal to half of the thickness of the compressed core material.

[0022] Furthermore, the pressing mechanism is connected to the pressing cylinder and is driven to move up and down by the pressing cylinder.

[0023] Furthermore, the core material is glass fiber mat.

[0024] Furthermore, a getter and a desiccant are arranged in the core material.

[0025] Furthermore, after the pressing mechanism presses down, the pressing strength of the pressing mechanism is 0.1MPa-0.2Mpa, and the compression ratio of the compressed thickness to the initial thickness is 25%-85%.

[0026] Further, in step S6, the second left heating plate heat seals the first gap to form a third edge seal, and the third edge seal and the first edge seal together form a left edge seal, and the second right heating plate heat seals the second gap to form a fourth edge seal, and the fourth edge seal and the second edge seal together form a right edge seal.

[0027] Furthermore, a first arc surface is provided on a side of the second left heating plate close to the core material, and a second arc surface is provided on a side of the second right heating plate close to the core material.

[0028] Furthermore, the heating mechanism also includes a front heating plate and a rear heating plate. The front heating plate can be raised and lowered on the frame bottom plate, and the front heating plate heat-seals the front side of the upper barrier film and the front side of the lower barrier film together to form a front sealed edge. The rear heating plate can be raised and lowered on the frame bottom plate, and the rear heating plate heat-seals the rear side of the upper barrier film and the rear side of the lower barrier film together to form a rear sealed edge.

[0029] Furthermore, a front pressure plate is formed on the front side of the plate body, and the front pressure plate is located directly above the front heating plate. A rear pressure plate is formed on the rear side of the plate body, and the rear pressure plate is located directly above the rear heating plate.

[0030] Furthermore, the widths of the first and second edge seals are both 5mm-10mm, the widths of the left and right edge seals are both 10mm-20mm, the widths of the front and rear edge seals are both 10mm-20mm; and the thickness of the non-folded vacuum insulation panel is 5mm-20mm.

[0031] The beneficial effects of the present application are as follows: in the process of manufacturing the vacuum insulation panel, the left side of the lower barrier film and the left side of the upper barrier film are heat-sealed together by the heating mechanism to form a first edge seal, and a first gap is formed between the first edge seal and the left side of the core material; the right side of the lower barrier film and the right side of the upper barrier film are heat-sealed together by the heating mechanism to form a second edge seal, and a second gap is formed between the second edge seal and the right side of the core material, so that the left and right sides of the lower barrier film and the upper barrier film are pre-sealed together, and by setting the first gap and the second gap, the adhesion between the lower barrier film and the upper barrier film is prevented from being affected when the core material rebounds. Due to the rebound of the core material, the first gap shrinks, and the inner side of the first edge seal abuts against the left side of the core material; the inner side of the second edge seal abuts against the right side of the core material, so that the heating mechanism heat-seals the first gap, and the heating mechanism heat-seals the second gap, and the width of the left and right edges is small, and the left and right edges with small widths do not need to be folded, thereby reducing costs. At the same time, the width of the front and rear edges is also small, and it can also be achieved that no folding is required. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 This is a structural schematic diagram of the preparation process of the non-folded vacuum insulation panel in this application;

[0033] Figure 2 A schematic diagram of the structure of the tooling for preparing the non-folded vacuum insulation panel in this application;

[0034] Figure 3 An exploded view of the tooling for preparing the vacuum insulation panel without folding edge in this application;

[0035] Figure 4 This is a schematic diagram of the structure of the non-folded vacuum insulation panel produced in this application.

[0036] Description of Reference Numerals

[0037] Lower barrier film 1, lower mold frame 2, frame bottom plate 21, first positioning strip 22, second positioning strip 23, core material 3, upper barrier film 4, left edge sealing 41, right edge sealing 42, front edge sealing 43, rear edge sealing 44, pressing mechanism 5, plate body 51, first side pressure plate 511, first elastic arc segment 5111, first horizontal pressing segment 5112, second side pressure plate 512, mounting groove 513, spring 52, lower pressure plate 53, heating mechanism 6, first left heating plate 61, second left heating plate 62, first right heating plate 63, second right heating plate 64. DETAILED DESCRIPTION

[0038] In order to better explain the present invention and facilitate understanding, the present invention is described in detail below through specific implementation modes in conjunction with the accompanying drawings.

[0039] like Figures 1 to 4 As shown, a method for manufacturing a vacuum insulation panel without folding edge of the present invention comprises the following steps:

[0040] S1, place the lower barrier film 1 in the lower mold frame 2, then place the core material 3 on the lower barrier film 1, and then place the upper barrier film 4 on the core material 3, so that the edge of the upper barrier film 4 is aligned with the edge of the lower barrier film 1; S2, under atmospheric pressure, the pressing mechanism 5 presses down to apply force to the upper barrier film 4 and compresses the core material 3, wherein the pressing strength of the pressing mechanism 5 is not less than 0.1MPa, and the pressing strength of the pressing mechanism 5 is 0.1MPa-0.2MPa; S3, the heating mechanism 6 The left side of the lower barrier film 1 and the left side of the upper barrier film 4 are heat-sealed together to form a first seal edge, and a first gap is formed between the first seal edge and the left side of the core material 3; the heating mechanism 6 heat-seals the right side of the lower barrier film 1 and the right side of the upper barrier film 4 together to form a second seal edge, and a second gap is formed between the second seal edge and the right side of the core material 3; wherein the heat sealing temperature is 120 degrees Celsius-180 degrees Celsius, and the heat sealing time is 10 seconds-45 seconds, specifically, the heat sealing temperature is 150 degrees Celsius, and the heat sealing time is 30 seconds. S4, the pressing mechanism 5 moves upward and away from the upper barrier film 4, the core material 3 rebounds, the first gap shrinks, and the inner side of the first sealing edge abuts against the left side of the core material 3; the second gap shrinks, and the inner side of the second sealing edge abuts against the right side of the core material 3, forming a pre-assembled board with semi-finished products sealed on both sides; S5, the pre-assembled board with semi-finished products sealed on both sides is evacuated, and the gas in the core material 3 is extracted from the front and rear ends of the upper barrier film 4 and the lower barrier film 1; S6, after the vacuum is evacuated, in the vacuum chamber, the pressing mechanism 5 moves downward and presses on the upper barrier film 4 again to compress the core material 3, and re-form the first gap and the second gap, and ... The pressing strength of the pressing mechanism 5 is not less than 0.1MPa, and the pressing strength of the pressing mechanism 5 is 0.1MPa-0.2MPa; the heating mechanism 6 heat-seals the first gap to form a third edge seal, and the third edge seal and the first edge seal together form a left edge seal 41, and the heating mechanism 6 heat-seals the second gap to form a fourth edge seal, and the fourth edge seal and the second edge seal together form a right edge seal 42, wherein the heat-seal temperature is 120 degrees Celsius-180 degrees Celsius, and the heat-seal time is 10 seconds-45 seconds, specifically, the heat-seal temperature is 150 degrees Celsius, and the heat-seal time is 30 seconds. S7, the heating mechanism 6 heat-seals the front side of the upper barrier film 4 and the front side of the lower barrier film 1 together to form a front edge seal 43, and the heating mechanism 6 heat-seals the rear side of the upper barrier film 4 and the rear side of the lower barrier film 1 together to form a rear edge seal 44; S8, after breaking the vacuum, take out the manufactured vacuum insulation panel.

[0041] Thus, the present invention relates to a method for manufacturing a non-folded vacuum insulation panel. In the process of manufacturing the vacuum insulation panel, the left side of the lower barrier film 1 and the left side of the upper barrier film 4 are heat-sealed together by the heating mechanism 6 to form a first sealed edge, and a first gap is formed between the first sealed edge and the left side of the core material 3; the right side of the lower barrier film 1 and the right side of the upper barrier film 4 are heat-sealed together by the heating mechanism 6 to form a second sealed edge, and a second gap is formed between the second sealed edge and the right side of the core material 3, so that the left and right sides of the lower barrier film 1 and the upper barrier film 4 are pre-sealed together. By setting the first gap and the second gap, the adhesion between the lower barrier film 1 and the upper barrier film 4 is prevented from being affected when the core material 3 rebounds. Due to the rebound of the core material 3, the first gap shrinks, and the inner side of the first sealed edge abuts against the left side of the core material 3; the inner side of the second sealed edge abuts against the right side of the core material 3, so that the heating mechanism 6 heat-seals the first gap, and the heating mechanism 6 heat-seals the second gap. The widths of the left sealed edge 41 and the right sealed edge 42 are small, and the left sealed edge 41 and the right sealed edge 42 with small widths do not need to be folded, thereby reducing costs. At the same time, the widths of the front edge seal 43 and the rear edge seal 44 are also small, so that folding is not required.

[0042] During production, the barrier film can be automatically cut to form an upper barrier film 4 and a lower barrier film 1, and then placed in a preparation tool to produce a vacuum insulation panel.

[0043] Optionally, the lower mold frame 2 includes a frame bottom plate 21 , a first positioning bar 22 and a second positioning bar 23 , the first positioning bar 22 is arranged on the frame bottom plate 21 , the second positioning bar 23 is arranged on the frame bottom plate 21 , and the second positioning bar 23 is arranged parallel to the first positioning bar 22 .

[0044] When placing the lower barrier film 1 on the lower mold frame 2, the left side of the lower barrier film 1 is placed above the first positioning bar 22, the right side of the lower barrier film 1 is placed above the second positioning bar 23, and the middle of the lower barrier film 1 is located between the first positioning bar 22 and the second positioning bar 23. A receiving groove is formed in the middle of the lower barrier film 1 for facilitating the placement of the core material 3. During production, the core material 3 is placed in the receiving groove to achieve positioning of the core material 3.

[0045] In this embodiment, the first positioning bar 22 is movably disposed on the frame bottom plate 21, and the second positioning bar 23 is movably disposed on the frame bottom plate 21 to adjust the distance between the second positioning bar 23 and the first positioning bar 22. By movably disposing the first positioning bar 22 and the second positioning bar 23, the distance between the second positioning bar 23 and the first positioning bar 22 can be adjusted, thereby facilitating the manufacture of vacuum insulation panels of different widths.

[0046] Furthermore, the heating mechanism 6 includes a first left heating plate 61, a second left heating plate 62, a first right heating plate 63 and a second right heating plate 64. The first left heating plate 61 is arranged on the first positioning strip 22, the second left heating plate 62 is arranged on the first positioning strip 22 and arranged side by side with the first left heating plate 61; the first right heating plate 63 is arranged on the second positioning strip 23, the second right heating plate 64 is arranged on the second positioning strip 23 and arranged side by side with the first right heating plate 63. By arranging the first left heating plate 61 and the first right heating plate 63, the left and right sides of the lower barrier film 1 and the upper barrier film 4 are pre-sealed.

[0047] Specifically, in step S3, the first left heating plate 61 heat-seals the left side of the lower barrier film 1 and the left side of the upper barrier film 4 together to form a first sealed edge, and the first right heating plate 63 heat-seals the right side of the lower barrier film 1 and the right side of the upper barrier film 4 together to form a second sealed edge.

[0048] In this embodiment, the pressing mechanism 5 includes a plate body 51, a spring 52 and a pressing plate 53. A first side pressing plate 511 is formed on one side of the plate body 51, and a second side pressing plate 512 is formed on the other side of the plate body 51. One end of the spring 52 is arranged on the plate body 51, and the pressing plate 53 is connected to the other end of the spring 52. The pressing plate 53 is located between the first side pressing plate 511 and the second side pressing plate 512.

[0049] After the pressing mechanism 5 descends under the action of the pressing cylinder, the lower pressing plate 53 first abuts against the middle part of the upper barrier film 4, and then the first side pressing plate 511 abuts against the left side of the upper barrier film 4, and the second side pressing plate 512 abuts against the right side of the upper barrier film 4, thereby preventing the middle part of the upper barrier film 4 from bulging when the left and right sides of the upper barrier film 4 are pressed.

[0050] In this embodiment, the first side pressure plate 511 includes a first elastic arc segment 5111 and a first horizontal clamping segment 5112, and the first elastic arc segment 5111 and the first horizontal clamping segment 5112 are integrally formed; the second side pressure plate 512 includes a second elastic arc segment and a second horizontal clamping segment, and the second elastic arc segment and the second horizontal clamping segment are integrally formed.

[0051] The first elastic arc segment 511 is concave inward, and the second elastic arc segment is concave inward. In this way, after the first horizontal pressing segment 5112 of the first side pressure plate 511 abuts against the left side of the upper barrier film 4, the first elastic arc segment 5111 is slightly deformed, so that the upper barrier film 4 has a tendency to be pulled outward, so that the upper barrier film 4 is tightened during heat sealing, and the tunnel phenomenon of the barrier film during heat sealing is reduced, and the heat sealing effect is good. After the first horizontal pressing segment 5112 abuts against the left side of the upper barrier film 4, the pressure is not less than 0.1MPa.

[0052] In order to prevent the spring 52 from being over-compressed, a mounting groove 513 is provided on the plate body 51, one end of the spring 52 is provided in the mounting groove 513, and the other end of the spring 52 protrudes from the mounting groove 513, so that when the lower pressing plate 53 abuts against the upper barrier film 4 and the lower pressing plate 53 continues to descend, the spring 52 is compressed, and when the lower pressing plate 53 abuts against the plate body 51, the spring 52 stops being compressed, thereby preventing the spring 52 from being over-compressed and damaged. After the lower pressing plate 53 abuts against the plate body 51, under the action of the plate body 51, the plate body 51 is tightly abutted against the upper barrier film 4.

[0053] In this embodiment, the height of the first positioning strip 22 is equal to the height of the second positioning strip 23, and the height of the second positioning strip 23 is equal to half of the thickness of the core material 3 after compression. Usually, after the pressing mechanism 5 is pressed down, according to the pressure size and the core material 3 of different materials, such as dry core material, wet core material or centrifugal cotton and other different core materials 3, after the pressing mechanism 5 is pressed down, the pressing strength of the pressing mechanism 5 is preferably 0.1MPa-0.2Mpa, and the compression ratio of the compressed thickness to the initial thickness is 25%-85%, such as the compression ratio is 50%. In this way, the left edge 41 and the right edge 42, the front edge 43 and the rear edge 44 of the manufactured vacuum insulation panel are roughly located in the middle of the edge of the vacuum insulation panel, which is convenient for the use of the vacuum insulation panel.

[0054] Preferably, the pressing mechanism 5 is connected to the pressing cylinder and driven to rise and fall by the pressing cylinder. By setting the pressing cylinder, the lifting and falling of the pressing mechanism 5 is realized. Figure 1 As shown, the downward pressure cylinder is arranged on the frame of the preparation tooling, and the preparation tooling is located in the vacuum chamber.

[0055] Furthermore, the core material 3 is glass fiber felt, and a getter and a desiccant are arranged in the core material 3, so that the vacuum insulation panel has a good insulation effect. The getter is preferably calcium oxide and / or barium-lithium alloy.

[0056] In this embodiment, in step S6, the second left heating plate 62 heat-seals the first gap to form a third edge seal, and the third edge seal and the first edge seal together form a left edge seal 41, and the second right heating plate 64 heat-seals the second gap to form a fourth edge seal, and the fourth edge seal and the second edge seal together form a right edge seal 42. By providing the second left heating plate 62 and the second right heating plate 64, the first gap is heat-sealed together, and the second gap is heat-sealed together, so that the inner sides of the left edge seal 41 and the right edge seal 42 are close to the core material 3, and the widths of the left edge seal 41 and the right edge seal 42 are small.

[0057] During heat sealing, in order to reduce damage to the lower barrier film 1, a first curved surface is provided on the side of the second left heating plate 62 close to the core material 3, and a second curved surface is provided on the side of the second right heating plate 64 close to the core material 3. In this way, during the heat sealing process, the surface of the lower barrier film 1 is pressed against the first curved surface and the second curved surface, so that the lower barrier film 1 is not easily creased, thereby reducing damage to the lower barrier film 1.

[0058] Further, the widths of the first edge seal and the second edge seal are both 5mm-10mm, the widths of the left edge seal 41 and the right edge seal 42 are both 10mm-20mm, the widths of the front edge seal 43 and the rear edge seal 44 of the non-folding vacuum insulation panel are both 10mm-20mm, and the thickness of the non-folding vacuum insulation panel is 5mm-20mm, such as the thickness of the non-folding vacuum insulation panel is 15mm or 10mm. Specifically, according to different needs, the edge seal can also be trimmed to cut the edge seal to a suitable width.

[0059] Furthermore, the heating mechanism 6 also includes a front heating plate and a rear heating plate. The front heating plate can be raised and lowered on the frame bottom plate 21. The front heating plate heat-seals the front side of the upper barrier film 4 and the front side of the lower barrier film 1 together to form a front edge seal 43. The rear heating plate can be raised and lowered on the frame bottom plate 21. The rear heating plate heat-seals the rear side of the upper barrier film 4 and the rear side of the lower barrier film 1 together to form a rear edge seal 44. The front side of the plate body 51 forms a front pressing plate, which is located directly above the front heating plate, and the rear side of the plate body 51 forms a rear pressing plate, which is located directly above the rear heating plate.

[0060] Under the action of the front pressing plate and the front heating sheet, the front side of the upper barrier film 4 and the front side of the lower barrier film 1 are pressed and heat-sealed together to form a front sealing edge 43. Under the action of the rear pressing plate and the rear heating sheet, the rear side of the upper barrier film 4 and the rear side of the lower barrier film 1 are pressed and heat-sealed together to form a rear sealing edge 44.

[0061] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent transformations made using the contents of the present invention's specification and drawings, or directly or indirectly applied in related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A method for manufacturing a non-folded vacuum insulation panel, characterized in that: The following steps are involved: S1, placing the lower barrier film in the lower mold frame, then placing the core material on the lower barrier film, and then placing the upper barrier film on the core material, so that the edge of the upper barrier film is aligned with the edge of the lower barrier film; S2, under atmospheric pressure, the pressing mechanism presses down to apply force to the upper barrier film and compresses the core material, and the pressing strength of the pressing mechanism is not less than 0.1 MPa; S3, the heating mechanism heat-seals the left side of the lower barrier film and the left side of the upper barrier film together to form a first seal edge, and a first gap is formed between the first seal edge and the left side of the core material; the heating mechanism heat-seals the right side of the lower barrier film and the right side of the upper barrier film together to form a second seal edge, and a second gap is formed between the second seal edge and the right side of the core material, wherein the heat-sealing temperature is 120 degrees Celsius to 180 degrees Celsius, and the heat-sealing time is 10 seconds to 45 seconds; S4, the pressing mechanism moves upward and away from the upper barrier film, the core material rebounds, the first gap shrinks, and the inner side of the first sealing edge abuts against the left side of the core material; the second gap shrinks, and the inner side of the second sealing edge abuts against the right side of the core material, forming a pre-assembled plate with semi-finished products sealed on both sides; S5, vacuumizing the semi-finished pre-assembled board with both sides sealed, and extracting the gas in the core material from the front and rear ends of the upper barrier film and the lower barrier film; S6, after the vacuum is drawn, in the vacuum chamber, the pressing mechanism moves downward and presses on the upper barrier film again to compress the core material and re-form the first gap and the second gap, and the pressing strength of the pressing mechanism is not less than 0.1 MPa; the heating mechanism heat-seals the first gap to form a third edge seal, and the third edge seal and the first edge seal together form a left edge seal, and the heating mechanism heat-seals the second gap to form a fourth edge seal, and the fourth edge seal and the second edge seal together form a right edge seal; wherein the heat sealing temperature is 120 degrees Celsius to 180 degrees Celsius, and the heat sealing time is 10 seconds to 45 seconds; S7, the heating mechanism heat-seals the front side of the upper barrier film and the front side of the lower barrier film together to form a front edge seal, and the heating mechanism heat-seals the rear side of the upper barrier film and the rear side of the lower barrier film together to form a rear edge seal; S8, after breaking the vacuum, take out the manufactured vacuum insulation panel.

2. The method for manufacturing a non-folded vacuum insulation panel according to claim 1, characterized in that: The lower mold frame includes a frame bottom plate, a first positioning bar and a second positioning bar. The first positioning bar is arranged on the frame bottom plate, the second positioning bar is arranged on the frame bottom plate, and the second positioning bar is arranged parallel to the first positioning bar.

3. The method for manufacturing a vacuum insulation panel without edge folding according to claim 2, characterized in that: The heating mechanism includes a first left heating plate, a second left heating plate, a first right heating plate and a second right heating plate. The first left heating plate is arranged on the first positioning strip, the second left heating plate is arranged on the first positioning strip and arranged side by side with the first left heating plate; the first right heating plate is arranged on the second positioning strip, the second right heating plate is arranged on the second positioning strip and arranged side by side with the first right heating plate.

4. The method for manufacturing a vacuum insulation panel without folding edges according to claim 3, characterized in that: In step S3, the first left heating plate heat-seals the left side of the lower barrier film and the left side of the upper barrier film together to form a first sealed edge, and the first right heating plate heat-seals the right side of the lower barrier film and the right side of the upper barrier film together to form a second sealed edge.

5. The method for manufacturing a non-folded vacuum insulation panel according to claim 1, characterized in that: The pressing mechanism includes a plate body, a spring and a pressing plate. A first side pressing plate is formed on one side of the plate body, and a second side pressing plate is formed on the other side of the plate body. One end of the spring is arranged on the plate body, and the pressing plate is connected to the other end of the spring. The pressing plate is located between the first side pressing plate and the second side pressing plate.

6. The method for manufacturing a non-folded vacuum insulation panel according to claim 1, characterized in that: The core material is glass fiber felt; a getter and a desiccant are arranged inside the core material.

7. The method for manufacturing a vacuum insulation panel without edge folding according to claim 1, characterized in that: After the pressing mechanism presses down, the pressing strength of the pressing mechanism is 0.1MPa-0.2Mpa, and the compression ratio of the compressed thickness to the initial thickness is 25%-85%.

8. The method for manufacturing a vacuum insulation panel without edge folding according to claim 3, characterized in that: In step S6, the second left heating plate heat seals the first gap to form a third edge seal, and the third edge seal and the first edge seal together form a left edge seal. The second right heating plate heat seals the second gap to form a fourth edge seal, and the fourth edge seal and the second edge seal together form a right edge seal.

9. The method for manufacturing a non-folded vacuum insulation panel according to claim 1, characterized in that: The heating mechanism also includes a front heating plate and a rear heating plate. The front heating plate can be raised and lowered on the frame bottom plate. The front heating plate heat-seals the front sides of the upper barrier film and the lower barrier film together to form a front sealed edge. The rear heating plate can be raised and lowered on the frame bottom plate. The rear heating plate heat-seals the rear sides of the upper barrier film and the lower barrier film together to form a rear sealed edge.

10. The method for manufacturing a vacuum insulation panel without edge folding according to claim 1, characterized in that: The width of the first edge seal and the second edge seal are both 5mm-10mm, the width of the left edge seal and the right edge seal are both 10mm-20mm, the width of the front edge seal and the rear edge seal are both 10mm-20mm; the thickness of the non-folded vacuum insulation panel is 5mm-20mm.

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