A puncture-resistant vacuum insulation panel and its manufacturing method

Abstract

This invention relates to a puncture-resistant vacuum insulation panel, comprising a glass fiber core material; a desiccant embedded within the glass fiber core material; an aluminum foil bag fitted over the glass fiber core material with heat-sealed edges on all four sides; two mineral wool boards, respectively adhered to the top and bottom surfaces of the aluminum foil bag; and a fiberglass bag fitted over the aluminum foil bag and mineral wool board with heat-sealed edges on all four sides. By employing the above technical solution, glass fiber, a high-performance inorganic non-metallic material with numerous varieties, offers advantages such as good insulation and strong heat resistance. The core material made from glass fiber possesses excellent thermal insulation properties. The aluminum foil bag, mineral wool board, and fiberglass bag provide protection, preventing sharp objects from easily puncturing the central area of ​​the vacuum insulation panel.

Description

Technical Field

[0001] This invention relates to a puncture-resistant vacuum insulation panel and its manufacturing method. Background Technology

[0002] Vacuum insulation panels (V8P) are a new type of thermal insulation material with low thermal conductivity, excellent thermal insulation effect, and small space occupation. They offer numerous advantages such as energy saving, low carbon footprint, environmental friendliness, and safety, and are widely used in home appliance insulation, wall insulation, biological cold chain transportation, logistics cold chain transportation, and automotive insulation. Existing vacuum insulation panels typically consist of three parts: a barrier bag, a core material enclosed in the barrier bag, and a gas-absorbing material located within the barrier bag. When used on exterior walls as external wall insulation, the barrier bag is easily punctured during practical application, leading to an increase in thermal conductivity and a decrease in insulation effect. In severe cases, this can cause the vacuum insulation panel to expand, bulge, and detach from the wall. Summary of the Invention

[0003] In view of the shortcomings of the existing technology, the purpose of this invention is to provide a puncture-resistant vacuum insulation board and its manufacturing method.

[0004] The technical solution of the present invention is implemented as follows: a puncture-resistant vacuum insulation panel, characterized in that it comprises:

[0005] Fiberglass core material;

[0006] Desiccant, which is embedded in the glass fiber core material;

[0007] An aluminum foil bag, which is fitted over the glass fiber core and has heat-sealed edges on all four sides;

[0008] Two mineral wool boards are attached to the top and bottom sides of the aluminum foil bag, respectively.

[0009] A fiberglass bag is fitted over the aluminum foil bag and mineral wool board, and has heat-sealed edges on all four sides.

[0010] By adopting the above technical solution, glass fiber is a high-performance inorganic non-metallic material with many varieties. Its advantages include good insulation and strong heat resistance. The core material made from it has good thermal insulation performance. By setting up aluminum foil bags, mineral wool boards and glass fiber bags, it is protected so that sharp objects are not easy to puncture the core material made of glass fiber core material.

[0011] This invention also discloses a method for preparing the aforementioned puncture-resistant vacuum insulation panel, characterized by comprising the following steps:

[0012] S1. Dry the glass fiber core material of the vacuum insulation panel;

[0013] S2. Place the treated glass fiber core material and getter into an aluminum foil bag, vacuum it, and seal it to obtain the initial finished vacuum insulation panel.

[0014] S3. Fold the edges of the sealed vacuum insulation board to obtain a semi-finished vacuum insulation board.

[0015] S4. Dry the mineral wool board;

[0016] S5. Paste treated mineral wool boards, no smaller than the vacuum insulation board semi-finished product, onto the top and bottom surfaces of the vacuum insulation board semi-finished product.

[0017] S6. Place the vacuum insulation board with mineral wool boards pasted on both sides into an aluminum foil bag and vacuum it to obtain the final vacuum insulation board.

[0018] S7. Heat-treat the obtained vacuum insulation board in an environment of 100℃-150℃ for 3-5 minutes to make the PE layer inside the fiberglass bag adhere to the mineral wool board, thus obtaining the final vacuum insulation board.

[0019] This invention also discloses a method for manufacturing a puncture-resistant vacuum insulation panel, characterized in that: the preparation steps of the glass fiber core material are as follows:

[0020] A1. Raw materials are fed into the unpacking machine. The raw materials are glass fiber filaments and recycled materials. There are two main types of glass fiber filaments, including long filaments and short filaments. The length range of long filaments is 7-25cm, and the length range of short filaments is 3-7cm. The unpacking machine can mix long filaments, short filaments and recycled materials in a certain proportion.

[0021] A2. The raw materials prepared in the previous steps are put into the coarse opener and pre-dispersed by the coarse opener.

[0022] A3. The raw materials that have been broken up by the coarse opening machine are put into the mixing box for preliminary mixing. The raw materials are drawn into the mixing box by the blower.

[0023] A4. The raw materials after preliminary mixing are then fed into the fine opening machine through an inclined curtain for further dispersing;

[0024] A5. The raw material that has been broken up again is placed into the cotton storage box for storage. The raw material that has been broken up again is sucked into the cotton storage box by the blower.

[0025] A6. A certain amount of raw material is weighed from the cotton storage box using an electronic scale and placed into the carding machine to card out a single-layer mesh product;

[0026] A7. After being combed by the combing machine, the single-layer mesh product is sent to the web laying machine by the conveyor belt to obtain a multi-layer mesh product. Preferably, the width of the multi-layer mesh product is 500-5000mm, the number of web layers is 2-150, and the thickness of the mesh is 5-35mm as measured by a thickness gauge with a pressure of 100kpa.

[0027] A8. The multi-layer mesh product after the mesh is laid is needled twice, preferably with a needled depth of 1-3mm. The needled form is surface needled, with no needled in the middle.

[0028] A9. After needle punching, the multi-layer mesh product is hot-pressed at 550-780℃ for 3-20 minutes to obtain the core material of the vacuum insulation board.

[0029] This invention also discloses a puncture-resistant vacuum insulation board, characterized in that the preparation steps of the mineral wool board are as follows:

[0030] B1. After mixing the raw materials according to the proportions, pulp them using a pulping machine;

[0031] B2. Add the prepared raw material slurry to the slurry mixing tank, add water to the slurry mixing tank to dilute and adjust the concentration and pH value;

[0032] B3. The prepared slurry is pumped into the slurry storage tank by a slag remover for later use.

[0033] B4. The prepared slurry is pumped from the slurry storage tank to the high-level tank via a slag remover.

[0034] B5. The slurry flows naturally and evenly from the high-level tank to the headbox at a controlled flow rate;

[0035] B6. The pulp in the headbox is filtered and formed by the forming wire in the forming box, and at the same time, it is vacuumed and pressed by the pressure rollers to form wet board paper.

[0036] B7. The wet board paper is conveyed to the drying oven for drying. After drying and dehumidification, the wet board paper enters the rolling and cutting machine for paper collection. The thin board paper is rolled into rolls, and the thick partition paper is cut into sheets of insulation board base paper.

[0037] B8. The raw paper is sent to the cutting workshop and cut into the specifications required by the user by machine or manually. After inspection, it is sealed, packaged and put into storage.

[0038] This invention also discloses a pulping machine, characterized in that it comprises:

[0039] A mixing chamber with an internal cavity;

[0040] Feed hopper;

[0041] A slurry outlet pipe is located at the bottom of the mixing chamber and communicates with its inner cavity;

[0042] A pulping tank, with its top opening movably installed inside the mixing chamber;

[0043] The pulping teeth are multiple conical in shape and fixedly installed on the inner side wall of the pulping tank;

[0044] Multiple perforations are provided vertically through the bottom of the pulping tank.

[0045] A crushing device is installed in the pulping tank to pre-crush the material before it falls into the pulping tank;

[0046] A rotary drive unit is used to rotate the pulping tank and drive the crushing device.

[0047] By adopting the above technical solution, the material enters the inner cavity of the mixing chamber through the feed hopper and falls into the pulping tank. The rotary drive device starts and runs, driving the pulping tank to rotate, causing the pulping teeth set on its inner wall to rotate and pulp. After the material is sufficiently broken by the pulping teeth, it falls into the bottom of the inner cavity of the mixing chamber through the leakage hole. With the start of the rotary drive device, the crushing device runs accordingly, pre-crushing the material that enters the mixing chamber and falls into the pulping tank. The pre-crushed material falls into the pulping tank. In this way, the pulping speed of the material is accelerated.

[0048] The present invention is further configured such that the rotary drive device includes:

[0049] The installation chamber has an inner cavity and is fixedly installed at the bottom of the mixing chamber;

[0050] A hollow rotating shaft is rotatably installed at its bottom end in the inner cavity of the mounting chamber, and its top end extends into the mixing chamber and is fixedly connected to the bottom of the pulping tank.

[0051] A solid rotating shaft is rotatably mounted in the hollow rotating shaft and its bottom end extends out of the solid rotating shaft and is rotatably connected to the bottom of the mounting chamber via a bearing;

[0052] Two worm gears are fixedly installed on the bottom of the outer wall of the hollow shaft and the solid shaft, respectively;

[0053] The worm gear has two parts, each connected to a separate worm wheel drive.

[0054] The motor has two motors, each used to drive a separate worm gear.

[0055] The top end of the solid rotating shaft is connected to the crushing device.

[0056] By adopting the above technical solution, two motors drive two worm gears to rotate, and two worm wheels rotate accordingly, driving the hollow shaft and solid shaft to rotate respectively, so that the mixing tank and crushing device can operate synchronously, asynchronously, or selectively. In this way, space is saved and operation is convenient.

[0057] The present invention is further configured such that the crushing device includes:

[0058] A crushing disc, which is rotatably installed in the pulping tank;

[0059] Several crushing blades are respectively rotatably installed on the top of the inner cavity of the mixing chamber and on the top surface of the crushing disc, and are distributed alternately with each other;

[0060] A lifting device is installed inside the mixing chamber and connected to the top of a solid rotating shaft to drive the crushing disc to move up and down inside the mixing chamber.

[0061] By adopting the above technical solution, when the solid rotating shaft rotates, it drives the crushing disc installed on the lifting device to rotate. The lifting device drives the crushing disc to rise, so that several crushing blades installed on the top of the crushing disc and the inner cavity of the mixing chamber intersect each other, forming a scissor effect. When the material enters the top of the mixing chamber and passes between the top surface of the crushing disc and the inner wall of the top of the mixing chamber, it is crushed by the crushing blades. With the setting of the lifting device, when it is not necessary to continue crushing the material, the lifting disc is lowered into the pulping tank. The drive device drives it to rotate in the opposite direction around the same axis as the pulping tank, so that the crushing blades installed on the top of the crushing disc are stirred in the mixing tank, improving pulping efficiency.

[0062] The present invention is further configured such that the lifting device includes:

[0063] Lifting sleeve;

[0064] The lifting column has a polygonal cross-section and is fixedly installed at the top of the solid rotating shaft;

[0065] The lifting groove, whose cross-section is adapted to the lifting column, is set in the lifting sleeve and its bottom end is through;

[0066] A lifting chamber, which has an inner cavity, is fixedly installed on the top of the mixing chamber and its inner cavity is in communication with the inner cavity of the mixing chamber;

[0067] A straight-line cylinder is fixedly installed at the top of the inner cavity of the lifting chamber;

[0068] A sealing element, which is disposed at the bottom of the lifting trough, is used to prevent pulp from entering between the bottom of the lifting trough and the outer wall of the lifting column;

[0069] In this configuration, at least a portion of the top of the lifting column slides vertically in the lifting groove, the telescopic end of the straight cylinder is rotatably connected to the top end face of the lifting sleeve, the crushing disc is fixedly installed on the outer wall of the lifting sleeve, and the feed hopper is installed on the lifting chamber and connected to its inner cavity.

[0070] By adopting the above technical solution, when the crushing disc needs to be raised or lowered, the straight cylinder is activated, which drives the lifting sleeve to rise or fall, so that the crushing disc installed on its outer wall rises or falls accordingly. When the lifting sleeve rises or falls, the lifting column slides in the lifting groove. By setting the cross-section of the lifting column and the lifting groove to be polygonal, the extension end of the straight cylinder is rotatably connected to the top of the lifting sleeve, so that the lifting sleeve can be driven to rotate by the rotating solid shaft during the lifting process and when the lifting is completed.

[0071] The present invention is further configured such that the sealing element comprises:

[0072] A sealing ring groove is provided at the bottom end of the lifting groove;

[0073] The main sealing ring is installed in the sealing ring groove;

[0074] A fixed annular groove is provided on the inner sidewall of the main sealing ring;

[0075] A fixed steel channel is installed on the inner wall of the fixed annular groove;

[0076] A secondary sealing ring, which has an air bladder and is installed in the fixed steel groove;

[0077] The sealing edge has multiple lines that are evenly distributed on the inner sidewall of the secondary sealing ring;

[0078] The inner rings of the upper and lower surfaces of the main sealing ring and the inner rings of each sealing edge abut against the outer wall of the lifting column.

[0079] By adopting the above technical solution, the sealing edges on the main sealing ring and the secondary sealing ring ensure a tight seal between the sealing ring groove and the outer wall of the lifting column. The airbag design improves the impact and vibration resistance of the secondary sealing ring, preventing deformation of the sealing edge due to vibrations generated during equipment operation, which could lead to poor contact between the sealing edge and the outer wall of the lifting column. The secondary sealing ring and the main sealing ring are further reinforced and fixed by the installation of a fixed steel groove.

[0080] The present invention is further configured to include:

[0081] The sealing rings are multiple and are respectively disposed between the inner cavity of the hollow rotating shaft and the outer wall of the solid rotating shaft and / or between the outer wall of the hollow rotating shaft and the bottom of the mixing chamber.

[0082] By adopting the above technical solution and setting the sealing ring, the pulp in the inner cavity of the mixing chamber is prevented from leaking into the inner cavity of the installation chamber through the gap between the inner cavity of the hollow rotating shaft and the outer wall of the solid rotating shaft or between the outer wall of the hollow rotating shaft and the bottom of the mixing chamber, thus preventing damage to the motor installed therein. Attached Figure Description

[0083] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0084] Figure 1 This is a schematic diagram of the puncture-resistant vacuum insulation panel structure according to a specific embodiment of the present invention.

[0085] Figure 2 This is a schematic diagram of the pulping machine structure according to a specific embodiment of the present invention.

[0086] Figure 3 for Figure 2 Schematic diagram of the locally enlarged structure at point A in the middle.

[0087] Attached Figure

[0088] 1-Fiberglass core material, 2-Desiccant, 3-Aluminum foil bag, 4-Mineral wool board, 5-Fiberglass bag, 6-Mixing chamber, 7-Crushing device, 701-Crushing disc, 702-Crushing blade, 8-Rotary drive device, 801-Installation chamber, 802-Hollow shaft, 803-Solid shaft, 805-Worm gear, 806-Worm, 807-Motor, 9-Lifting device, 901-Lifting sleeve, 902-Lifting column, 903-Lifting groove, 904 - Lifting bin, 905 Straight cylinder, 10 Pulping teeth, 11 Leakage hole, 12 Seal, 1201 Sealing ring groove, 1202 Main sealing ring, 1203 Fixed ring groove, 1204 Fixed steel channel, 1205 Secondary sealing ring, 1206 Sealing edge, 13 Sealing ring, 14 Ventilation channel, 15 Suction fan, 16 Air outlet channel, 17 Support, 18 Through channel, 19 Feed hopper, 20 Pulping pipe, 21 Pulping bucket. Detailed Implementation

[0089] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0090] like Figures 1-3 As shown, the present invention discloses a puncture-resistant vacuum insulation panel, characterized in that it comprises:

[0091] Fiberglass core material 1;

[0092] Desiccant 2 is embedded within the glass fiber core material 1;

[0093] Aluminum foil bag 3 is fitted over the glass fiber core material 1 and has heat-sealed edges on all four sides;

[0094] Mineral wool board 4, which consists of two pieces and is respectively pasted on the top and bottom sides of the aluminum foil bag 3;

[0095] The fiberglass bag 5 is fitted over the aluminum foil bag 3 and the mineral wool board 4 and has heat-sealed edges on all four sides.

[0096] By adopting the above technical solution, glass fiber is a high-performance inorganic non-metallic material with many varieties. Its advantages include good insulation and strong heat resistance. The core material made from it has good thermal insulation performance. By setting up aluminum foil bags 3, mineral wool boards 4 and glass fiber bags 5, it is protected so that sharp objects are not easy to puncture the core material made of glass fiber core material 1.

[0097] This invention also discloses a method for manufacturing a puncture-resistant vacuum insulation panel, characterized by comprising the following steps:

[0098] S1. Dry the glass fiber core material 1 of the vacuum insulation panel;

[0099] S2. Place the treated glass fiber core material 1 and the getter into an aluminum foil bag 3, vacuum it, and seal it to obtain the initial finished product of the vacuum insulation board.

[0100] S3. Fold the edges of the sealed vacuum insulation board to obtain a semi-finished vacuum insulation board.

[0101] S4. Dry the mineral wool board 4;

[0102] S5. Paste treated mineral wool board of not less than 4 parts of the vacuum insulation board semi-finished product onto the top and bottom surfaces of the vacuum insulation board semi-finished product.

[0103] S6. The vacuum insulation board with mineral wool board 4 pasted on both sides is placed into aluminum foil bag 3 and vacuumed to obtain the final vacuum insulation board.

[0104] S7. Heat-treat the obtained vacuum insulation board in an environment of 100℃-150℃ for 3-5 minutes to make the PE layer inside the fiberglass bag 5 adhere to the mineral wool board 4, thus obtaining the final vacuum insulation board.

[0105] This invention also discloses a method for manufacturing a puncture-resistant vacuum insulation panel, characterized in that: the preparation steps of the glass fiber core material 1 are as follows:

[0106] A1. Raw materials are fed into the unpacking machine. The raw materials are glass fiber filaments and recycled materials. There are two main types of glass fiber filaments, including long filaments and short filaments. The length range of long filaments is 7-25cm, and the length range of short filaments is 3-7cm. The unpacking machine can mix long filaments, short filaments and recycled materials in a certain proportion.

[0107] A2. The raw materials prepared in step S1 are put into the coarse opener and pre-dispersed by the coarse opener.

[0108] A3. The raw materials that have been broken up by the coarse opener in step S2 are put into the mixing box for preliminary mixing. The raw materials are drawn into the mixing box by the blower.

[0109] A4. The raw materials after preliminary mixing are then fed into the fine opening machine through an inclined curtain for further dispersing;

[0110] A5. The raw material that has been broken up again is placed into the cotton storage box for storage. The raw material that has been broken up again is sucked into the cotton storage box by the blower.

[0111] A6. A certain amount of raw material is weighed from the cotton storage box using an electronic scale and placed into the carding machine to card out a single-layer mesh product;

[0112] A7. After being combed by the combing machine, the single-layer mesh product is sent to the web laying machine by the conveyor belt to obtain a multi-layer mesh product. Preferably, the width of the multi-layer mesh product is 500-5000mm, the number of web layers is 2-150, and the thickness of the mesh is 5-35mm as measured by a thickness gauge with a pressure of 100kpa.

[0113] A8. The multi-layer mesh product after the mesh is laid is needled twice, preferably with a needled depth of 1-3mm. The needled form is surface needled, with no needled in the middle.

[0114] A9. After needle punching, the multi-layer mesh product is hot-pressed at 550-780℃ for 3-20 minutes to obtain the core material of the vacuum insulation board.

[0115] This invention also discloses a puncture-resistant vacuum insulation board, characterized in that the preparation steps of the mineral wool board are as follows:

[0116] B1. After mixing the raw materials according to the proportions, pulp them using a pulping machine;

[0117] B2. Add the prepared raw material slurry to the slurry mixing tank, add water to the slurry mixing tank to dilute and adjust the concentration and pH value;

[0118] B3. The prepared slurry is pumped into the slurry storage tank by a slag remover for later use.

[0119] B4. The prepared slurry is pumped from the slurry storage tank to the high-level tank via a slag remover.

[0120] B5. The slurry flows naturally and evenly from the high-level tank to the headbox at a controlled flow rate;

[0121] B6. The pulp in the headbox is filtered and formed by the forming wire in the forming box, and at the same time, it is vacuumed and pressed by the pressure rollers to form wet board paper.

[0122] B7. The wet board paper is conveyed to the drying oven for drying. After drying and dehumidification, the wet board paper enters the rolling and cutting machine for paper collection. The thin board paper is rolled into rolls, and the thick partition paper is cut into sheets of insulation board base paper.

[0123] B8. The raw paper is sent to the cutting workshop and cut into the specifications required by the user by machine or manually. After inspection, it is sealed, packaged and put into storage.

[0124] This invention also discloses a pulping machine, characterized in that it comprises:

[0125] The mixing chamber 6 has an inner cavity;

[0126] Feed hopper 19;

[0127] The slurry outlet pipe 20 is located at the bottom of the mixing chamber 6 and communicates with its inner cavity;

[0128] The pulping tank 21 is movably installed in the inner cavity of the mixing chamber 6 with its top opening;

[0129] The pulping teeth 10 are multiple conical in shape and are fixedly installed on the inner side wall of the pulping tank 21;

[0130] The leakage hole 11 has multiple holes that extend vertically through the bottom of the pulping tank 21;

[0131] Crushing device 7, which is installed in the pulping tank 21, is used to pre-crush the material before it falls into the pulping tank 21;

[0132] The rotary drive device 8 is used to drive the pulping tank 21 to rotate and to drive the crushing device 7 to operate.

[0133] By adopting the above technical solution, the material enters the inner cavity of the mixing chamber 6 through the feed hopper 19 and falls into the pulping tank 21. The rotary drive device 8 starts running, driving the pulping tank 21 to rotate, causing the pulping teeth 10 set on its inner wall to rotate and pulp. After the material is sufficiently crushed by the pulping teeth 10, it falls into the bottom of the inner cavity of the mixing chamber 6 through the leakage hole 11. With the start of the rotary drive device 8, the crushing device 7 runs accordingly, pre-crushing the material that enters the mixing chamber 6 and falls into the pulping tank 21. The pre-crushed material falls into the pulping tank 21. In this way, the pulping speed of the material is accelerated.

[0134] In a specific embodiment of the present invention, the rotary drive device 8 includes:

[0135] Installation chamber 801, which has an inner cavity and is fixedly installed at the bottom of the mixing chamber 6;

[0136] A hollow rotating shaft 802 is rotatably installed in the inner cavity of the mounting chamber 801 at its bottom end, and its top end extends into the mixing chamber 6 and is fixedly connected to the bottom of the pulping tank 21.

[0137] A solid rotating shaft 803 is rotatably mounted in the hollow rotating shaft 802 and its bottom end extends out of the solid rotating shaft 803 and is rotatably connected to the bottom of the mounting chamber 801 via a bearing;

[0138] Two worm gears 805 are fixedly installed on the bottom of the outer wall of the hollow shaft 802 and the solid shaft 803, respectively.

[0139] There are two worm gears 806, each of which is connected to a worm wheel 805 for transmission.

[0140] There are two motors 807, each used to drive the worm gears 806 to rotate.

[0141] The top end of the solid rotating shaft 803 is connected to the crushing device 7.

[0142] By adopting the above technical solution, the two motors 807 drive the two worm gears 806 to rotate, and the two worm wheels 805 rotate accordingly, driving the hollow shaft 802 and the solid shaft 803 to rotate respectively, so that the mixing tank and the crushing device 7 can operate synchronously, asynchronously, or selectively. In this way, space is saved and operation is convenient.

[0143] In a specific embodiment of the present invention, the crushing device 7 includes:

[0144] The crushing disc 701 is rotatably installed in the pulping tank 21;

[0145] Several crushing blades 702 are respectively rotatably installed on the top of the inner cavity of the mixing chamber 6 and on the top surface of the crushing disc 701, and are distributed alternately with each other;

[0146] The lifting device 9 is installed in the inner cavity of the mixing chamber 6 and connected to the top of the solid rotating shaft 803 to drive the crushing disc 701 to rise and fall in the inner cavity of the mixing chamber 6.

[0147] By adopting the above technical solution, when the solid rotating shaft 803 rotates, it drives the crushing disc 701 installed on the lifting device 9 to rotate. The lifting device 9 drives the crushing disc 701 to rise, so that the crushing blades 702 installed on the top of the crushing disc 701 and the inner cavity of the mixing chamber 6 are interlaced to form a scissor effect. When the material enters the top of the inner cavity of the mixing chamber 6 and passes between the top surface of the crushing disc 701 and the inner wall of the top of the mixing chamber 6, it is crushed by the crushing blades 702. With the setting of the lifting device 9, when it is not necessary to continue crushing the material, the lifting disc is lowered into the pulping tank 21. The drive device drives it to rotate in the opposite direction around the coaxial axis with the pulping tank 21, so that the crushing blades 702 installed on the top of the crushing disc 701 are stirred in the mixing tank, thereby improving the pulping efficiency.

[0148] In a specific embodiment of the present invention, the lifting device 9 includes:

[0149] Lifting sleeve 901;

[0150] The lifting column 902 has a polygonal cross-section and is fixedly installed at the top of the solid rotating shaft 803;

[0151] The lifting groove 903 has a cross-section that matches the lifting column 902, is installed in the lifting sleeve 901 and has its bottom end penetrating through it;

[0152] The lifting chamber 904, which has an inner cavity, is fixedly installed on the top of the mixing chamber 6 and its inner cavity is in communication with the inner cavity of the mixing chamber 6;

[0153] A straight-line cylinder 905 is fixedly installed at the top of the inner cavity of the lifting chamber 904;

[0154] A sealing element 12 is provided at the bottom of the lifting groove 903 to prevent pulp from entering between the bottom of the lifting groove 903 and the outer wall of the lifting column 902.

[0155] In this configuration, at least a portion of the top end of the lifting column 902 slides vertically in the lifting groove 903, the telescopic end of the straight cylinder 905 is rotatably connected to the top end face of the lifting sleeve 901, the crushing disc 701 is fixedly installed on the outer wall of the lifting sleeve 901, and the feed hopper 19 is installed on the lifting chamber 904 and communicates with its inner cavity.

[0156] By adopting the above technical solution, when the crushing disc 701 needs to be raised or lowered, the straight cylinder 905 is activated, driving the lifting sleeve 901 to rise or fall, so that the crushing disc 701 installed on its outer wall rises or falls accordingly. When the lifting sleeve 901 rises or falls, the lifting column 902 slides in the lifting groove 903. By setting the cross-section of the lifting column 902 and the lifting groove 903 to be polygonal, the extension end of the straight cylinder 905 is rotatably connected to the top of the lifting sleeve 901, so that the lifting sleeve 901 can be driven to rotate by the rotating solid shaft 803 during the lifting process and when the lifting is completed.

[0157] In a specific embodiment of the present invention, the sealing element 12 includes:

[0158] A sealing ring groove 1201 is provided at the bottom end of the lifting groove 903;

[0159] The main sealing ring 1202 is installed in the sealing ring groove 1201;

[0160] A fixing annular groove 1203 is provided on the inner sidewall of the main sealing ring 1202;

[0161] A fixed steel channel 1204 is installed on the inner wall of the fixed annular groove 1203;

[0162] A secondary sealing ring 1205, which has an air bladder, is installed in the fixed steel groove 1204;

[0163] The sealing edge 1206 has multiple lines that are evenly distributed on the inner wall of the secondary sealing ring 1205.

[0164] The inner rings of the upper and lower surfaces of the main sealing ring 1202 and the inner rings of each sealing edge 1206 abut against the outer wall of the lifting column 902.

[0165] By adopting the above technical solution, the sealing edge 1206 on the main sealing ring 13 and the secondary sealing ring 13 ensures a tight seal between the sealing ring groove 1201 and the outer wall of the lifting column 902. The airbag configuration improves the impact and vibration resistance of the secondary sealing ring 1205, preventing deformation of the sealing edge 1206 caused by vibrations during equipment operation, which would lead to poor contact between the sealing edge 1206 and the outer wall of the lifting column 902. The secondary sealing ring 1205 and the main sealing ring 1202 are further reinforced and fixed by the fixed steel groove 1204.

[0166] In a specific embodiment of the present invention, it further includes:

[0167] The sealing ring 13 has multiple rings and is respectively disposed between the inner cavity of the hollow rotating shaft 802 and the outer wall of the solid rotating shaft 803 and / or between the outer wall of the hollow rotating shaft 802 and the bottom of the mixing chamber 6.

[0168] By adopting the above technical solution, the sealing ring 13 prevents the pulp in the inner cavity of the mixing chamber 6 from leaking into the inner cavity of the installation chamber 801 through the gap between the inner cavity of the hollow rotating shaft 802 and the outer wall of the solid rotating shaft 803 or between the outer wall of the hollow rotating shaft 802 and the bottom of the mixing chamber 6, thus preventing damage to the motor 807 installed therein.

[0169] In a specific embodiment of the present invention, it further includes:

[0170] Ventilation slot 14 is disposed on one side of the installation chamber 801 and communicates with its inner cavity;

[0171] A suction fan 15 is installed in the ventilation slot 14;

[0172] Air outlet slot 16 is located on the side of the installation chamber 801 away from the ventilation slot 14.

[0173] By adopting the above technical solution, the suction fan 15 runs, forming an airflow that enters the inner cavity of the installation chamber 801 through the ventilation slot 14, and then carries the heat generated by the two motors 807 during operation and discharges it through the air outlet slot 16, so that the two motors 807 are not easily burned out due to overheating.

[0174] In a specific embodiment of the present invention, it further includes:

[0175] Support 17, which is plate-shaped and installed around the bottom outer wall of the installation chamber 801;

[0176] Multiple through grooves 18 are provided on the four sides of the support 17.

[0177] By adopting the above technical solution, the installation chamber 801 is suspended above the ground, and the multiple through slots 18 facilitate the cooling of the motor 807 by the suction fan 15.

[0178] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A method for manufacturing a puncture-resistant vacuum insulation panel, characterized in that, The puncture-resistant vacuum insulation board includes: a glass fiber core material (1); a desiccant (2) embedded in the glass fiber core material (1); an aluminum foil bag (3) fitted over the glass fiber core material (1) and heat-sealed on all four sides; a mineral wool board (4), of which there are two pieces and are respectively pasted on the upper and lower sides of the aluminum foil bag (3); and a fiberglass bag (5) fitted over the aluminum foil bag (3) and the mineral wool board (4) and heat-sealed on all four sides. The preparation steps of the mineral wool board include: mixing the raw materials of the mineral wool board (4) in proportion and then pulping them through a pulping machine. The pulping machine includes: A mixing chamber (6) having an inner cavity; Feed hopper (19); The slurry outlet pipe (20) is located at the bottom of the mixing chamber (6) and communicates with its inner cavity; The pulping tank (21) is movably installed in the inner cavity of the mixing chamber (6) with its top opening; Pulping teeth (10) are multiple conical in shape and fixedly installed on the inner side wall of the pulping tank (21); The drain hole (11) has multiple holes that extend vertically through the bottom of the pulping tank (21); A crushing device (7) is installed in the pulping tank (21) to pre-crush the material before it falls into the pulping tank (21); A rotary drive device (8) is used to drive the pulping tank (21) to rotate and to drive the crushing device (7) to run; The rotary drive device (8) includes: The installation chamber (801) has an inner cavity and is fixedly installed at the bottom of the mixing chamber (6); A hollow rotating shaft (802) is rotatably installed in the inner cavity of the mounting chamber (801) at its bottom end, and its top end extends into the mixing chamber (6) and is fixedly connected to the bottom of the pulping tank (21); A solid rotating shaft (803) is rotatably mounted in the hollow rotating shaft (802) and its bottom end extends out of the solid rotating shaft (803) and is rotatably connected to the bottom of the mounting chamber (801) via a bearing; Two worm gears (805) are fixedly installed on the bottom of the outer walls of the hollow shaft (802) and the solid shaft (803), respectively. There are two worm gears (806), each of which is connected to a worm wheel (805) for transmission. Two motors (807) are used to drive each worm (806) to rotate. The top end of the solid rotating shaft (803) is connected to the crushing device (7); The crushing device (7) includes: A crushing disc (701) is rotatably mounted in the pulping tank (21); Several crushing blades (702) are respectively rotatably installed on the top of the inner cavity of the mixing chamber (6) and the top surface of the crushing disc (701) and are distributed alternately. A lifting device (9) is installed in the inner cavity of the mixing chamber (6) and connected to the top of the solid rotating shaft (803) to drive the crushing disc (701) to move up and down in the inner cavity of the mixing chamber (6); The lifting device (9) includes: Lifting sleeve (901); The lifting column (902) has a polygonal cross-section and is fixedly installed at the top of the solid rotating shaft (803); The lifting groove (903) has a cross-section that is adapted to the lifting column (902), is set in the lifting sleeve (901) and has its bottom end through; The lifting chamber (904) is fixedly installed on the top of the mixing chamber (6) with an inner cavity and its inner cavity is connected to the inner cavity of the mixing chamber (6); A straight-line cylinder (905) is fixedly installed at the top of the inner cavity of the lifting chamber (904); A sealing element (12) is provided at the bottom of the lifting groove (903) to prevent pulp from entering between the bottom of the lifting groove (903) and the outer wall of the lifting column (902); The top part of the lifting column (902) slides vertically in the lifting groove (903), the telescopic end of the straight cylinder (905) is rotatably connected to the top end face of the lifting sleeve (901), the crushing disc (701) is fixedly installed on the outer wall of the lifting sleeve (901), and the feed hopper (19) is installed on the lifting chamber (904) and connected to its inner cavity.

2. The method for manufacturing a puncture-resistant vacuum insulation panel according to claim 1, characterized in that: The seal (12) includes: A sealing ring groove (1201) is provided at the bottom end of the lifting groove (903); The main sealing ring (1202) is installed in the sealing ring groove (1201); A fixed annular groove (1203) is provided on the inner sidewall of the main sealing ring (1202); A fixed steel channel (1204) is installed on the inner wall of the fixed annular groove (1203); A secondary sealing ring (1205) with an air bladder is installed in the fixed steel groove (1204); The sealing edge (1206) has multiple lines that are evenly distributed on the inner wall of the secondary sealing ring (1205); The inner rings of the upper and lower surfaces of the main sealing ring (1202) and the inner rings of each sealing edge (1206) abut against the outer wall of the lifting column (902).

3. The method for manufacturing a puncture-resistant vacuum insulation panel according to claim 2, characterized in that: Also includes: Sealing rings (13) are multiple and are respectively disposed between the inner cavity of the hollow rotating shaft (802) and the outer wall of the solid rotating shaft (803) and / or between the outer wall of the hollow rotating shaft (802) and the bottom of the mixing chamber (6).

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