Production process and equipment of vacuum heat insulation composite insulation board

Abstract

The application discloses a production process of a vacuum heat-insulation composite insulation board and relates to the technical field of soundproof material production.The process comprises the following steps: laying a bottom mixed material, laying a vacuum heat-insulation board, laying an upper mixed material, mold pressing, drying, hardening treatment and the like.The hardening protective shell made of perlite material is coated on the vacuum heat-insulation board, the rigid hardening protective shell protects the high-barrier film of the vacuum heat-insulation board, the problem of vacuum heat-insulation board breakage, air leakage and expansion existing in the construction process can be effectively prevented, the vacuum heat-insulation board can be better applied to wall surface heat-insulation construction operation, and excellent waterproof performance is achieved.Compared with the traditional separate process, the process of the application simplifies the production process of the composite insulation board and improves the production efficiency.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of sound insulation material production, in particular to a production process of a vacuum heat insulation composite board, an equipment applied to the process, a composite board obtained by using the process and application of the composite board. BACKGROUND

[0002] As a new type of heat insulation board, the vacuum heat insulation board is widely used in the field of heat insulation of household appliances due to its low thermal conductivity and greatly reduced thickness compared with traditional foamed heat insulation boards. However, it is less used in the construction industry because the heat insulation effect of the vacuum heat insulation board depends on the vacuum state inside the high barrier film. Once the high barrier film is damaged and leaks, not only will the heat insulation effect of the vacuum heat insulation board be lost, but also the internal fiber core layer will expand, resulting in a significant increase in the thickness of the vacuum heat insulation board. If the surface of the vacuum heat insulation board is decorated with putty, plaster or paint and other materials at this time, cracks will inevitably occur on the wall surface with the expansion of the vacuum heat insulation board, resulting in problems such as peeling of the decorative layer. Therefore, it is necessary to develop a new production process and equipment of composite board to meet the application requirements of wall construction. SUMMARY

[0003] The present application aims to provide a production process of a vacuum heat insulation composite board to solve the above-mentioned technical problems.

[0004] To solve the above problems, the present application provides the following technical solutions:

[0005] A production process of a vacuum heat insulation composite board, comprising the following steps:

[0006] S1. A certain amount of perlite, epoxy resin, waterproof agent and water are sent into a mixer for mixing to obtain a mixture;

[0007] S2. A certain amount of the mixture is laid in a mold cavity and leveled by vibration of a vibration motor;

[0008] S3. A vacuum heat insulation board is laid on the mixture laid in the above step, and a certain amount of the mixture is laid in the mold cavity to cover the vacuum heat insulation board;

[0009] S4. The vibration motor is turned on to vibrate the mold cavity and compact the mixture in the mold cavity to remove air;

[0010] S5. The lower mold is raised, the upper mold is lowered, and the mixture in the mold cavity is molded to obtain a board blank;

[0011] S6. The molded board blank is placed in an oven for drying and hardening treatment at a drying temperature of 100-130℃ to obtain the desired product.

[0012] Preferably, the production process of the vacuum insulation composite insulation board comprises the following steps:

[0013] S1. A certain amount of perlite, epoxy resin, waterproof agent and water are fed into a mixer for mixing to obtain a mixture, and the mixture is put into two hoppers located on both sides of a forming device according to the amount;

[0014] S2. The hopper located on the left side of the upper mold discharges a certain amount of the mixture into a receiving frame below the hopper, then the receiving frame is horizontally moved to the upper side of the lower mold under the action of a hydraulic rod, and the mixture in the receiving frame is discharged and laid in a mold cavity provided on the workbench, and then the mixture is leveled by vibration of a vibration motor;

[0015] S3. The hydraulic rod continues to extend, and the receiving frame is horizontally pushed to the lower side of the hopper on the right side of the upper mold, and the hopper discharges a certain amount of the mixture into the receiving frame, at this time, the discharging mechanism provided on the left side of the receiving frame releases the vacuum insulation board and lays it on the mixture laid in the above step; then the receiving frame is moved to the upper side of the lower mold under the action of the hydraulic rod, and the mixture in the receiving frame is discharged and laid in the mold cavity provided on the workbench, covering the vacuum insulation board; then the hydraulic rod is retracted and drives the receiving frame to return to the initial position;

[0016] S4. Turn on the vibration motor to vibrate the mold cavity and compact the mixture in the mold cavity to remove air;

[0017] S5. The lower mold rises, the upper mold descends, and the mixture in the mold cavity is molded to obtain a plate blank;

[0018] S6. The molded plate blank is placed in an oven for drying and hardening treatment, and the drying temperature is 100-130°C, and the desired product can be obtained.

[0019] Preferably, the composite insulation board prepared by the above production process comprises a vacuum insulation board, and the vacuum insulation board is uniformly wrapped with a hardened protective shell.

[0020] Preferably, the vacuum insulation board is obtained by vacuum packaging a core material wrapped by a high-barrier film, the core material is made of silica or glass fiber, and the high-barrier film comprises an outer film, a middle film and an inner film arranged from outside to inside, the outer film is made of nylon or PVC, the middle film is at least one of VMPET film, PVDC film, PVA film, PP film and PVC film, and the inner film is made of PE.

[0021] Preferably, the hardened protective shell is a perlite insulation board.

[0022] Preferably, the application of a vacuum heat insulation composite board, the vacuum heat insulation composite board is arranged on the outer wall, the heat preservation box, the refrigerator or the cold chain logistics vehicle as the heat preservation layer.

[0023] Preferably, a forming device for the production process, comprising a workbench, an upper die plate, a lower die plate, an upper die and a lower die, the upper die plate is connected and fixed with the lower die plate by means of guide columns, the upper die and the lower die are located above and below the workbench respectively, the upper die is slidingly connected to the guide columns and moves up and down by means of the down pressure hydraulic cylinder on the bottom surface of the upper die plate, the movable concave die of the lower die is slidingly connected to the mold cavity in the workbench, and the workbench is also horizontally slidingly connected with an open-top material collecting frame, the left side of the material collecting frame is fixed with a material discharging mechanism and connected with the hydraulic rod, and the workbench is provided with a guide table for driving the material discharging mechanism to unfold.

[0024] Preferably, the workbench is connected with the lower die plate through the lower die by means of support columns to obtain support.

[0025] Preferably, the material discharging mechanism comprises a rack, two left and right symmetrically arranged supporting plates and slide rails mounted on the front and rear sides of the rack, the supporting plates are slidingly connected with the slide rails by means of the sliding blocks at both ends of the supporting plates, the supporting plates are located at the lower end of the rack and are attached thereto, the side surface of the sliding block is provided with an extension plate, the two extension plates located on the same side of the rack are connected with a rotating arm by means of a connecting rod, the connecting rod, the extension plate and the rotating arm are all rotationally connected, the rotating arm is rotationally connected to the rack by means of a shaft, and the other end of the shaft is connected with a swing arm matched with the guide block.

[0026] Preferably, the swing arm is made of metal material and can be restored to the vertical position by its own gravity.

[0027] The advantages of the present application are:

[0028] 1. The present application can effectively prevent the problems of damage, air leakage and expansion of the vacuum heat insulation board during construction by coating a hardening protective shell of perlite material on the vacuum heat insulation board, and protecting the high barrier film of the vacuum heat insulation board by the rigid hardening protective shell, so that the vacuum heat insulation board can be better applied to wall insulation construction operation; on the other hand, due to the use of integrated molding technology, the defects of weak connection firmness of some layered composite insulation boards in the market are avoided, and the related assembly process is saved, which can be combined with the traditional perlite insulation board forming device, thereby reducing the manufacturing cost.

[0029] 2. By adding a certain amount of waterproof agent, the hydrophobic rate of the composite insulation board prepared by the application reaches 99.5%, which is higher than the physical performance requirement of GB / T10299 on the hydrophobic rate (≥98.0%) of the expanded perlite insulation board, so that the composite insulation board has excellent waterproof performance.

[0030] 3. Compared with the traditional separate process, the process of the application simplifies the production process of the composite insulation board and improves the production efficiency.

[0031] 4. By using the forming equipment of the application, the receiving frame can not only realize multiple discharging and laying of the mixed material, but also release the vacuum insulation board while feeding by means of the discharging mechanism arranged on the side of the receiving frame, without manual or mechanical hand feeding of the vacuum insulation board; and when feeding on the right side of the upper die, the receiving frame can also push out the board blank formed in the last time, so as to facilitate the workers to take out, which is very convenient. BRIEF DESCRIPTION OF DRAWINGS

[0032] Figure 1 is a flowchart of the application.

[0033] Figure 2 is a structural schematic view of the forming equipment.

[0034] Figure 3 is a schematic view of the receiving frame and the discharging mechanism.

[0035] Figure 4 is a partial enlarged view of A of Figure 3

[0036] Figure 5 is a schematic view of the workbench.

[0037] Figure 6 is a working schematic view of the forming equipment.

[0038] Figure 7 is a structural schematic view of the vacuum insulation composite board prepared by the application.

[0039] Wherein, 1 is a workbench, 2 is an upper die plate, 3 is an upper die, 4 is a lower die plate, 5 is a lower die, 50 is a movable concave die, 6 is a guide column, 7 is a lower pressing hydraulic cylinder, 8 is a lifting hydraulic cylinder, 9 is a die cavity, 10 is a supporting column, 11 is a receiving frame, 12 is a discharging mechanism, 120 is a rack, 121 is a placing area, 122 is a supporting plate, 123 is a sliding block, 124 is a sliding rail, 125 is an extension plate, 126 is a rotating arm, 127 is a connecting rod, 128 is a shaft rod, 129 is a swing arm, 13 is a guide table, and 14 is a hydraulic rod. DETAILED DESCRIPTION

[0040] In order to make the technical means, creative features, purposes and effects achieved by the application easy to understand, the application will be further described below in combination with specific embodiments. ​

[0041] Embodiment 1

[0042] As Figure 1 shown, a production process of a vacuum heat-insulation composite insulation board comprises the following steps:

[0043] S1. A certain amount of perlite, epoxy resin, waterproof agent and water are sent into a mixer for mixing to obtain a mixture;

[0044] S2. A certain amount of the mixture is laid in a mold cavity and leveled by means of vibration of a vibration motor, i.e. laying the bottom layer of the mixture;

[0045] S3. A vacuum heat-insulation board is laid on the mixture laid in the above step, and a certain amount of the mixture is laid in the mold cavity to cover the vacuum heat-insulation board, i.e. laying the upper layer of the mixture;

[0046] S4. The vibration motor is turned on to vibrate the mold cavity to compact the mixture in the mold cavity and remove air;

[0047] S5. The lower mold is raised and the upper mold is lowered to mold the mixture in the mold cavity to obtain a board blank;

[0048] S6. The molded board blank is placed in an oven for drying and hardening treatment, and the drying temperature is 100-130°C, so that the desired product is obtained.

[0049] As Figure 7 shown, the embodiment also discloses a composite insulation board prepared by the production process, comprising a vacuum heat-insulation board, and a hardened protective shell uniformly wrapped outside the vacuum heat-insulation board.

[0050] In the embodiment, the vacuum heat-insulation board is obtained by vacuum packaging a core material coated with a high-barrier film, the core material is silica or glass fiber, and the high-barrier film comprises an outer film, a middle film and an inner film arranged from outside to inside, the outer film is nylon or PVC material, the middle film is at least one of VMPET film, PVDC film, PVA film, PP film and PVC film, and the inner film is PE material.

[0051] In the embodiment, the hardened protective shell is a perlite insulation board.

[0052] Specifically, the mixture (i.e. the material of the hardened protective shell) is obtained by mixing 93wt% of perlite particles, 4.5wt% of epoxy resin, 0.5wt% of waterproof agent and 2.0wt% of water. The addition of the waterproof agent makes the hydrophobic rate of the composite insulation board reach 99.5%, and the composite insulation board has excellent waterproof performance.

[0053] The present application can effectively prevent the problem of vacuum insulation board damage, air leakage and expansion in the construction process by coating the hard protective shell of perlite material outside the vacuum insulation board, protecting the high barrier film of the vacuum insulation board through the rigid hard protective shell, so that the vacuum insulation board can be better applied to wall surface insulation construction operation.

[0054] The application of the vacuum insulation composite insulation board can set the vacuum insulation composite insulation board as an insulation layer on an outer wall, an insulation box, a refrigerator or a cold chain logistics vehicle.

[0055] Example 2

[0056] As shown in Figures 2 to 6 A production process of a vacuum insulation composite insulation board, comprising the following steps:

[0057] S1. A certain amount of perlite, epoxy resin, waterproof agent and water are sent into a mixer for mixing to obtain a mixture, and the mixture is put into two hoppers located on both sides of a molding device according to the amount;

[0058] S2. A certain amount of the mixture is discharged from the hopper on the left side of the upper mold 3 into the material receiving frame 11 below the hopper, then the material receiving frame 11 moves horizontally to the upper mold 3 under the action of the hydraulic rod 14 and discharges the mixture in it and lays it in the mold cavity 9 arranged on the workbench 1, and then it is leveled by the vibration of the vibration motor;

[0059] S3. The hydraulic rod 14 continues to extend and pushes the material receiving frame 11 horizontally to the hopper on the right side of the upper mold 3, and a certain amount of the mixture is discharged from the hopper into the material receiving frame 11, at this time the discharging mechanism 12 arranged on the left side of the material receiving frame 11 releases the vacuum insulation board and lays it on the mixture laid in the above step; then the material receiving frame 11 moves to the left to the upper mold 3 under the action of the hydraulic rod 14 and discharges the mixture in it and lays it in the mold cavity 9 arranged on the workbench 1, covering the vacuum insulation board; then the hydraulic rod 14 retracts and drives the material receiving frame 11 to return to the initial position;

[0060] S4. Turn on the vibration motor to vibrate the mold cavity 9 and compact the mixture in the mold cavity 9 to remove air;

[0061] S5. The lower mold 5 rises, the upper mold 3 descends, and the mixture in the mold cavity 9 is molded to obtain a plate blank;

[0062] S6. The molded plate blank is placed in an oven for drying and hardening treatment, and the drying temperature is 100-130℃, and the desired product can be obtained.

[0063] The vacuum insulation composite insulation board described in Example 1 can also be produced by using the process.

[0064] The embodiment also discloses a forming device for the production process, which comprises a workbench 1, an upper die plate 2, a lower die plate 4, an upper die 3 and a lower die 5, the upper die plate 2 is connected and fixed with the lower die plate 4 by means of guide columns 6, the upper die 3 and the lower die 5 are respectively located above and below the workbench 1, the upper die 3 is slidingly connected with the guide columns 6 and moves up and down by means of a lower pressing hydraulic cylinder 7 on the bottom surface of the upper die plate 2, the movable die cavity 50 is slidingly connected with the guide columns 6 and moves up and down by means of a top lifting hydraulic cylinder 8 on the top surface of the lower die plate 4, a die cavity 9 for forming is arranged on the workbench 1, the movable die cavity 50 of the lower die 5 is slidingly connected in the die cavity 9, a material collecting frame 11 with an upper opening and a lower opening is also slidingly connected horizontally on the workbench 1, a material placing mechanism 12 is fixed on the left side of the material collecting frame 11 and connected with the hydraulic rod 14, a trapezoidal guide table 13 for driving the material placing mechanism 12 to unfold is arranged on the workbench 1, and an avoiding hole is arranged on the upper die 3 for the guide table 13 to pass through.

[0065] In the embodiment, the workbench 1 passes through the lower die 5 and is connected with the lower die plate 4 by means of the support columns 10, so as to obtain support.

[0066] In the embodiment, the material placing mechanism 12 comprises a rack 120, two left-right symmetrical supporting plates 122 and sliding rails 124 arranged on the front and back sides of the rack 120, a placing area 121 for placing vacuum thermal insulation plates is arranged on the rack 120, the supporting plates 122 are slidingly connected with the sliding rails 124 by means of sliding blocks 123 at two ends of the supporting plates 122, the supporting plates 122 are located at the lower end of the rack 120 and are attached to the rack 120, extension plates 125 are arranged on the side surfaces of the sliding blocks 123, two extension plates 125 located on the same side of the rack 120 are connected with a rotating arm 126 by means of a connecting rod 127, the connecting rod 127, the extension plates 125 and the rotating arm 126 are all rotationally connected, the rotating arm 126 is rotationally connected with the rack 120 by means of a shaft rod 128, the other end of the shaft rod 128 is connected with a swing arm 129 matched with a guide block, the swing arm 129 is made of metal material and can restore to a vertical position by means of its own gravity. The supporting plate 122 comprises a horizontal rod and an extension part protruding from the horizontal rod and used for supporting the vacuum thermal insulation plate.

[0067] The working principle of the forming device is as follows:

[0068] Firstly, a certain amount of mixed material is discharged from the material bin on the left side of the upper die 3 into the material collecting frame 11 below the material bin, at this time, the vacuum thermal insulation plate has been placed in the placing area 121 in the material placing mechanism 12 and is supported by the supporting plates 122, then under the action of the hydraulic rod 14, the material collecting frame 11 moves horizontally to the upper side of the lower die 5 and discharges the mixed material in the material collecting frame 11 and lays the mixed material in the die cavity 9 arranged on the workbench 1, and then the mixed material is leveled by means of vibration of a vibrating motor, the vibrating motor is installed at the lower end of the workbench 1 and is located on one side of the die cavity 9;

[0069] Then, the hydraulic rod 14 continues to extend and pushes the material collecting frame 11 horizontally to the right of the upper mold 3, directly below the material bin which discharges a certain amount of mixed material into the material collecting frame 11, at this time, the swing arm 129 in the material discharging mechanism 12 on the left side of the material collecting frame 11 contacts and is lifted by the guide table 13 to rotate a certain angle, the rotating arm 126 also rotates and drives the two supporting plates 122 to spread in opposite directions by means of the connecting rod 127, releasing the vacuum heat insulation plate and laying it on the mixed material laid in the above step; then, the material collecting frame 11 moves to the left under the action of the hydraulic rod 14 to the upper mold 5 and discharges the mixed material in it to lay in the mold cavity 9 arranged on the workbench 1, covering the vacuum heat insulation plate, the swing arm 129 returns to the vertical position under the action of its own gravity due to the disengagement from the guide table 13, so that the supporting plate 122 also resets, ready for the next material discharging; then, the hydraulic rod 14 retracts and drives the material collecting frame 11 to return to the initial position.

[0070] When the material collecting frame 11 moves to the right of the upper mold 3 for material loading, the material collecting frame 11 can also push out the last formed plate blank, so as to facilitate the staff to take out.

[0071] It is to be understood by those skilled in the art that the present application can be implemented by other embodiments without departing from the spirit or essential characteristics thereof. Therefore, the above disclosed embodiments are merely exemplary in all aspects and are not the only ones. All changes within the scope of the present application or within the equivalent scope of the present application are intended to be included in the present application.

Claims

1. A manufacturing process for a vacuum thermal insulation composite insulation board, characterized in that, Includes the following steps: S1. Take a certain amount of perlite, epoxy resin, waterproofing agent and water and put them into the mixer to mix them to obtain a mixture. Then put the mixture into the two hoppers located on both sides of the molding equipment according to the amount. S2. A certain amount of mixed material is discharged from the hopper located on the left side of the upper mold (3) into the receiving frame (11) below the hopper. Then, under the action of the hydraulic rod (14), the receiving frame (11) moves horizontally to the top of the lower mold (5) and discharges the mixed material inside and lays it in the mold cavity (9) set on the worktable (1). Then, it is flattened by the vibration of the vibrating motor. S3. The hydraulic rod (14) continues to extend and pushes the receiving frame (11) horizontally to the bottom of the hopper on the right side of the upper mold (3). The hopper discharges a certain amount of mixed material into the receiving frame (11). At this time, the feeding mechanism (12) set on the left side of the receiving frame (11) releases the vacuum insulation board and lays it on the mixed material laid in the above steps. Then, under the action of the hydraulic rod (14), the receiving frame (11) moves to the left to the top of the lower mold (5) and discharges the mixed material inside, laying it in the mold cavity (9) set on the worktable (1), covering the vacuum insulation board. Then, the hydraulic rod (14) retracts and drives the receiving frame (11) back to the initial position. S4. Turn on the vibration motor to vibrate the mold cavity (9) to compact the mixture in the mold cavity (9) and remove air; S5. The lower mold (5) rises, the upper mold (3) descends and molds the mixture in the mold cavity (9) to obtain the sheet blank; S6. Place the formed sheet blank into a drying room for drying and hardening treatment. The drying temperature is 100-130℃ to obtain the desired product. The molding equipment includes a worktable (1), an upper template (2), a lower template (4), an upper mold (3), and a lower mold (5). The upper template (2) is connected and fixed to the lower template (4) by means of a guide post (6). The upper mold (3) and the lower mold (5) are located above and below the worktable (1), respectively. The upper mold (3) is slidably connected to the guide post (6) and moves up and down by means of a downward hydraulic cylinder (7) on the bottom surface of the upper template (2). The movable concave die (50) of the lower mold (5) is slidably connected to the guide post (6) and moves up and down by means of a downward hydraulic cylinder (7) on the bottom surface of the upper template (2). The lifting hydraulic cylinder (8) on the top surface of the lower template (4) moves up and down. The worktable (1) is provided with a mold cavity (9) for forming. The movable concave mold (50) of the lower mold (5) is slidably connected in the mold cavity (9). The worktable (1) is also horizontally slidably connected with a receiving frame (11) with openings at the top and bottom. The left side of the receiving frame (11) is fixed with a feeding mechanism (12) and connected with the hydraulic rod (14). The worktable (1) is provided with a guide platform (13) to drive the feeding mechanism (12) to unfold. The feeding mechanism (12) includes a frame (120), two symmetrically arranged pallets (122) and slide rails (124) installed on the front and rear sides of the frame (120). The pallets (122) are slidably connected to the slide rails (124) by means of sliders (123) at both ends. The pallets (122) are located at the lower end of the frame (120) and fit against it. The side of the sliders (123) is provided with extension plates (125). The two extension plates (125) located on the same side of the frame (120) are connected to the rotating arm (126) by means of a connecting rod (127). The connecting rod (127) is rotatably connected to the extension plates (125) and the rotating arm (126). The rotating arm (126) is rotatably connected to the frame (120) by means of a shaft (128). The other end of the shaft (128) is connected to a swing arm (129) that cooperates with the guide block.

2. The production process of a vacuum thermal insulation composite insulation board according to claim 1, characterized in that, The workbench (1) is supported by a support column (10) that passes through the lower mold (5) and is connected to the lower template (4).

3. The production process of a vacuum thermal insulation composite insulation board according to claim 1, characterized in that, The swing arm (129) is made of metal and can return to a vertical position by its own weight.

4. A vacuum thermal insulation composite insulation board prepared using the production process described in claim 1, characterized in that, It includes a vacuum insulation panel, which is uniformly wrapped with a hardened protective shell.

5. A vacuum thermal insulation composite insulation board according to claim 4, characterized in that, The vacuum insulation panel is made by vacuum sealing a core material covered with a high-barrier film. The core material is made of silicon dioxide or glass fiber. The high-barrier film includes an outer film, a middle film and an inner film arranged sequentially from the outside to the inside. The outer film is made of nylon or PVC. The middle film is a composite of at least one of VMPET film, PVDC film, PVA film, PP film and PVC film. The inner film is made of PE material.

6. A vacuum thermal insulation composite insulation board according to claim 4, characterized in that, The hardened protective shell is made of perlite insulation board.

7. An application of a vacuum thermal insulation composite insulation board, characterized in that, The vacuum thermal insulation composite insulation board described in claim 4 is used as an insulation layer on exterior walls, insulated boxes, refrigerators, or cold chain logistics vehicles.

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