Preparation method and production equipment of heat-insulating self-adhesive waterproof coiled material

Abstract

The application discloses a kind of heat insulation self-adhesive waterproof coiled material, from top to bottom in turn includes surface heat insulation film, heat insulation waterproof adhesive layer and release film;Surface heat insulation film from top to bottom in turn includes PET heat-resistant layer and aluminium surface layer;The chemical component of heat insulation waterproof adhesive layer includes by mass fraction: butyl rubber and fluorosilicone rubber 10-30 parts, butyl rubber and fluorosilicone rubber are 3:1 according to mass ratio;Resin 5-10 parts;Adhesive 10-30 parts;Filler 30-40 parts.Non-vulcanized rubber layer system is used, with flexible creep and permeation function, can penetrate into base layer gap, with super strong adhesive force and anti-aging performance, especially suitable for concrete, metal roof etc., can play the effect of sealing waterproof, noise reduction, damping, sound insulation.The preparation method and production equipment of heat insulation self-adhesive waterproof coiled material are also disclosed.

Description

Technical Field

[0001] This invention belongs to the field of waterproof membranes, specifically a method for preparing and production equipment for a heat-insulating self-adhesive waterproof membrane. Background Technology

[0002] Currently, the self-adhesive used in domestic waterproof membranes is still mainly modified bitumen-based, resulting in technical defects such as poor aging resistance and poor impermeability, thus creating potential engineering risks. The core solution lies in increasing research and development on the production and application of polymer-based self-adhesives to replace the currently used modified bitumen-based self-adhesives. In recent years, some published literature has reported some solutions, such as:

[0003] CN103818055A discloses a reactive heat-insulating aluminum foil butyl rubber self-adhesive waterproof membrane, which consists of a first heat-insulating and waterproof layer, a second waterproof layer, and a release film from top to bottom. The first heat-insulating and waterproof layer is a PET-reinforced aluminum foil layer, and the second waterproof layer is a butyl rubber self-adhesive layer. A vulcanizing agent is added to this layer. Due to the presence of the vulcanizing agent, the membrane does not have creep and penetration functions. As a result, once water seepage is found on the waterproof surface during use, moisture will spread over a large area at the adhesive surface, making it impossible to accurately determine the leakage point. It is necessary to open up a large area of ​​the leakage point to find the true leakage point. Therefore, it is necessary to optimize and improve the existing self-adhesive waterproof membrane. Summary of the Invention

[0004] To solve the above-mentioned technical problems, the inventors, through practice and summarization, derived the technical solution of this invention, which adopts the following technical solution:

[0005] A heat-insulating self-adhesive waterproof membrane, comprising, from top to bottom, a surface heat-insulating film, a heat-insulating and waterproof adhesive layer, and a release film;

[0006] The surface heat insulation film consists of a PET heat-resistant layer and an aluminum surface layer from top to bottom;

[0007] The chemical components of the thermal insulation and waterproof adhesive layer, by weight, include:

[0008] 10-30 parts of butyl rubber and fluorosilicone rubber, wherein the mass ratio of butyl rubber to fluorosilicone rubber is 3:1;

[0009] 5-10 parts of resin;

[0010] 10-30 parts adhesive;

[0011] 30-40 parts of filler.

[0012] In the aforementioned heat-insulating self-adhesive waterproof membrane, the adhesive is a polyolefin adhesive;

[0013] The filler is a mixture of nano-calcium powder and fumed SiO2 in a mass ratio of 5:1;

[0014] The resin is one or more of terpene resin, C5 or C9.

[0015] The production equipment for the aforementioned heat-insulating self-adhesive waterproof membrane was also disclosed, including:

[0016] The glue application assembly includes a hot melt feeder, a high-pressure glue pump, and a glue dispensing die. The hot melt feeder is equipped with a feed hopper at one end, a screw conveyor inside for conveying glue into the high-pressure glue pump, and an intermediate box at the end. The high-pressure glue pump is installed between the intermediate box and the glue dispensing die. The glue dispensing die is provided with a glue dispensing channel. The glue inlet of the glue dispensing die is connected to the glue outlet of the high-pressure glue pump through a pipe.

[0017] Conveying component one conveys the surface heat insulation film. Conveying component one includes an air shaft one, a front conveying roller, a rear conveying roller and a coating roller. The coating roller is arranged at the tail of the glue dispensing die head. The glue dispensing die head applies glue to the surface heat insulation film passing through the coating roller to obtain a heat insulation and waterproof adhesive layer.

[0018] Conveying component two is arranged above conveying component one. Conveying component two is used to convey release film and includes a front conveying roller and an air shaft two.

[0019] The composite component is formed by rolling a release film onto a heat-insulating and waterproof adhesive layer to obtain a heat-insulating self-adhesive waterproof membrane. The composite component includes a composite pressure roller one, a composite pressure roller two, and an adhesive edge control component. The composite pressure roller one and the composite pressure roller two are arranged one behind the other and located between the glue application roller and the front conveying roller. The adhesive edge control component is distributed between the composite pressure roller one and the composite pressure roller two and is set independently. The adhesive edge control component is arranged vertically as a whole. Under the action of the composite pressure roller one and the composite pressure roller two, the adhesive edge control component moves synchronously with the composite pressure roller.

[0020] The cutting and winding assembly is located at the end of the composite assembly and performs winding and cutting of the roll material.

[0021] In the production equipment for the heat-insulating self-adhesive waterproof membrane, the adhesive edge control component includes two sets of adhesive edge rollers, which are arranged along the length of the composite pressure roller. The adhesive edge rollers are provided with constraint grooves, and adhesive edge control strips are wound inside the constraint grooves.

[0022] The adhesive edge control strip includes an alloy steel strip, which is wound inside the groove. An elastic de-adhesive strip is provided on the side of the alloy steel strip away from the groove. The elastic de-adhesive strip is distributed between the surface heat insulation film and the release film and drives the alloy steel strip to run synchronously under the squeezing action of two composite pressure rollers.

[0023] In the production equipment for a heat-insulating self-adhesive waterproof membrane, the position of the dispensing die head relative to the coating roller is adjustable. Connecting blocks are installed at both ends of the dispensing die head. The connecting blocks are fixed on a rotating plate. The rotating plate is rotatably mounted on the frame. A telescopic cylinder is installed on the frame. The piston rod of the telescopic cylinder is connected to the end of the rotating plate away from the dispensing die head and is slidably fitted with the rotating plate.

[0024] In the production equipment for the heat-insulating self-adhesive waterproof membrane, the cutting and winding assembly includes a rotating frame, a power assembly for driving the rotating frame to rotate, a cutting component, and a film guiding component.

[0025] The rotating frame is equipped with two sets of winding structures, each including an air shaft and a power component that drives the air shaft to rotate.

[0026] The guiding component includes a cylinder 1, with a connecting arm hinged to the output end of the cylinder 1. A rod shaft is connected to the end of the connecting arm, and a guiding plate 1 is mounted on the rod shaft. A guiding plate 2 is hinged to the end of the guiding plate 1 away from the rod shaft. A cylinder 2 is mounted on the side of the guiding plate 1 facing away from the rotating frame. The output end of the cylinder 2 is hinged to the guiding plate 2. The guiding plate 2 is used to guide the cut end of the heat-insulating self-adhesive waterproof membrane to the corresponding air expansion shaft 2 for winding.

[0027] The cutting section is placed between two sets of winding structures to perform online cutting of the heat-insulating self-adhesive waterproof membrane.

[0028] In the production equipment for the heat-insulating self-adhesive waterproof membrane, a bubble-removing component is arranged between the cutting and winding assembly and the composite assembly. The bubble-removing component is distributed on the side of the heat-insulating self-adhesive waterproof membrane that is away from the adhesive coating assembly.

[0029] The degassing assembly includes a drive shaft, a first drive bevel gear, a second drive bevel gear, a drive bevel gear, a guide rod, and a pusher. One end of the drive shaft is equipped with an elastic meshing structure, and the other end is equipped with a fixed ring. Both ends of the fixed ring are provided with transmission parts. The first and second drive bevel gears are slidably fitted on the outside of the drive shaft and distributed on both sides of the fixed ring. The fixed ring meshes with one of the drive bevel gears. The drive bevel gear is meshed between the first and second drive bevel gears and is equipped with a servo motor. A movable seat is driven and fitted on the drive shaft. The degassing component is installed on the movable seat. The guide rod is independently set and slidably fitted with the movable seat to guide the movable seat. The pusher is adjustablely mounted on the guide rod.

[0030] In the production equipment for a heat-insulating self-adhesive waterproof membrane, a rotating shaft is provided on the defoaming component, and the rotating shaft is mounted on a movable seat through a bearing. An annular groove is provided on the defoaming component, and an elastic top pin is installed on the movable seat. The elastic top pin fits into the annular groove, and two sets of symmetrically distributed sunken arc grooves are provided in the annular groove. The ends of the sunken arc grooves and the elastic top pins are adapted to each other.

[0031] The jacking component includes a mounting plate with elastic telescopic columns for jacking the bubble-expelling component to switch the bubble-expelling angle.

[0032] A method for preparing a heat-insulating self-adhesive waterproof membrane, comprising the following steps:

[0033] Step 1, Applying the heat-insulating and waterproof adhesive

[0034] Butyl rubber and fluorosilicone rubber are plasticized on a two-roll mill for 5-10 minutes at a temperature of 80-120℃ to ensure thorough plasticization and uniform mixing.

[0035] It is then fed into a kneader, where resin, adhesive, and filler are added in sequence for mixing. The speed is controlled at 50-100 rpm and the temperature at 180-220℃. After thorough mixing, a heat-insulating and waterproof adhesive is obtained.

[0036] The heat insulation and waterproof adhesive is fed into the dispensing die of the dispensing die head by a hot melt feeder and a high-pressure adhesive pump. The gap between the dispensing die and the coating roller is adjusted in advance to control the required coating thickness.

[0037] Step 2, apply glue

[0038] The surface heat insulation film is released by the air shaft and conveyed to the glue coating roller via the front and rear conveying rollers. The glue dispensing die head applies glue to the PET heat-resistant layer of the surface heat insulation film to obtain a heat-insulating and waterproof adhesive layer. The heat-insulating and waterproof adhesive layer is conveyed to the composite pressure roller along with the surface heat insulation film.

[0039] Step 3, compounding

[0040] The release film is released by the second air shaft and conveyed to the second composite pressure roller via the front conveyor roller;

[0041] Composite roller one and composite roller two rotate to press the release film, the heat-insulating and waterproof adhesive layer, and the surface heat-insulating film together to form a heat-insulating self-adhesive waterproof roll material.

[0042] During the composite pressing process, the adhesive edge control strips distributed at both ends of the thermal insulation and waterproof adhesive layer move together under the action of the composite pressure roller to control the width at both ends of the thermal insulation and waterproof adhesive layer and press it.

[0043] Step 4, Defoaming

[0044] After the composite pressing process yields the heat-insulating self-adhesive waterproof membrane, the servo motor drives the drive gear to rotate, which in turn drives the transmission bevel gear to rotate the transmission shaft. The moving seat moves along the length of the guide rod, and the defoaming component applies pressure to the release film side to defoam. When it reaches the position of the pusher at the end, the angle of the defoaming component is adjusted under the action of the pusher, and the transmission shaft is driven to move in the opposite direction together under the action of the elastic meshing structure, thus completing the defoaming operation of the heat-insulating self-adhesive waterproof membrane.

[0045] Step 5: Roll up and cut

[0046] The two sets of air shafts are air shaft B and air shaft C. The heat-insulating self-adhesive waterproof membrane is wound up by the air shaft under the action of its own power component. When the air shaft is wound to the set length, air shaft C starts to rotate under the action of its own power component and rotates at the same speed as the air shaft. The power component drives the rotating frame to rotate and rotate air shaft C onto the heat-insulating self-adhesive waterproof membrane. The cutting component cuts the heat-insulating self-adhesive waterproof membrane online.

[0047] Cylinder 1 drives the connecting arm via the rod shaft to flip the guide plate 1 up to the outside of the air expansion shaft B. The cutting piece cuts the heat-insulating self-adhesive waterproof membrane online. After cutting, cylinder 2 immediately opens to flip the guide plate 2 up and wrap the heat-insulating self-adhesive waterproof membrane around the air expansion shaft B. The end of the heat-insulating self-adhesive waterproof membrane on the air expansion shaft is fixed to complete the winding operation.

[0048] Step 6, Change the roll

[0049] Remove the completed heat-insulating self-adhesive waterproof membrane from the air shaft, reinstall a new winding drum, and apply double-sided tape to the surface, ready for the next winding operation.

[0050] Compared with the prior art, the present invention has the following beneficial effects:

[0051] The adhesive layer of the heat-insulating self-adhesive waterproof membrane of this invention uses non-vulcanized butyl rubber. First, butyl and fluorosilicone rubber are thinly plasticized on an open mill, then fed into a kneader, where resin, adhesive, and filler are added. By controlling the rotation speed at 50-100 rpm, the mixture is thoroughly mixed and stirred under high temperature and shear pressure, polymerizing into a three-dimensional interpenetrating network structure. The interpenetrating network forms a unified structure, with different polymer molecules intertwined, forming an inseparable whole that cannot be separated by simple physical methods. This allows for the fusion and migration of molecular phases, resulting in a viscoelastic colloid resistant to high temperatures of 180 degrees Celsius and low temperatures of -60 degrees Celsius. It possesses flexible creep and penetration capabilities, allowing it to penetrate into the voids of the substrate, exhibiting superior adhesion and anti-aging properties. It is particularly suitable for concrete and metal roofs, providing sealing, waterproofing, noise reduction, damping, and sound insulation effects.

[0052] During the production of the aforementioned heat-insulating self-adhesive waterproof membrane, issues such as overflow or unevenness of the adhesive layer during lamination and pressing can be addressed by restraining the adhesive layer on both sides during lamination and pressing. This controls the lateral position of the adhesive layer, preventing it from overflowing and adhering to the rollers or sticking together at the ends of the inner and outer membrane layers during winding. Furthermore, the position of the adhesive applicator relative to the cooling rollers is adjustable, allowing for control of the adhesive coating thickness.

[0053] Existing roll winding operations mostly involve stopping the machine after winding the roll to a set length, cutting the roll, unloading it, loading a new roll, and restarting the winding process. This requires the adhesive coating assembly to operate synchronously; otherwise, uneven adhesive thickness will occur, affecting the quality of the roll. Furthermore, the adhesive layer material can accumulate during this process, also causing uneven thickness and impacting roll quality. Therefore, this invention employs a cutting and winding assembly to achieve automatic online cutting and winding of the roll without stopping the machine. During the roll lamination process, air bubbles may exist between the release film and the adhesive layer. The presence of these bubbles affects both the lamination quality and the subsequent winding process after cutting, potentially causing abnormal detachment of the release film during winding and affecting the winding quality. Attached Figure Description

[0054] Figure 1 This is a schematic diagram of the structure of the heat-insulating self-adhesive waterproof membrane of the present invention.

[0055] Figure 2 This is a schematic diagram of the structure of the heat-insulating self-adhesive waterproof membrane production equipment of the present invention.

[0056] Figure 3 This is a diagram showing the structural positional relationship between the adhesive applicator, conveying component one, conveying component two, and composite component of the present invention.

[0057] Figure 4 This is a schematic diagram of the internal structure of the frame of the present invention.

[0058] Figure 5 This is a vertical distribution diagram of the adhesive edge control component of the present invention.

[0059] Figure 6 This is a cross-sectional view of the adhesive edge control strip of the present invention.

[0060] Figure 7 This is a schematic diagram of the structure of the guiding film component of the present invention in its natural state.

[0061] Figure 8 This is a schematic diagram of the structure of the guide film component of the present invention guiding the cut ends of the roll material.

[0062] Figure 9 This is a cross-sectional view of the defoaming component of the present invention.

[0063] Figure 10 This is a diagram showing the angle at which the bubble-removing component of the present invention moves to the right.

[0064] Figure 11 This is a diagram showing the angle at which the bubble-removing component of the present invention moves to the left.

[0065] Figure 12 This is a schematic diagram of the structure and operation of the pusher component of the present invention.

[0066] Figure 13 for Figure 9 A magnified view of a portion of point A in the middle.

[0067] In the picture:

[0068] 110. Surface heat insulation film; 111. PET heat-resistant layer; 112. Aluminum surface layer; 120. Heat-insulating and waterproof adhesive layer; 130. Release film;

[0069] 11. Hot melt feeder; 12. High-pressure glue pump; 13. Glue dispensing die head; 131. Connecting block; 132. Rotating plate; 133. Frame; 134. Telescopic cylinder; 14. Intermediate box;

[0070] 21. Air shaft 1; 22. Front conveyor roller; 23. Rear conveyor roller; 24. Glue coating roller;

[0071] 32. Air-expanding shaft two; 33. Front conveyor roller;

[0072] 41. Composite pressure roller one; 42. Composite pressure roller two; 43. Glue edge control belt; 431. Alloy steel belt; 432. Elastic degumming strip; 44. Glue edge roller group;

[0073] 51. Rotating frame; 511. Air shaft three; 512. Cylinder one; 513. Connecting arm; 514. Rod shaft; 515. Guide plate one; 516. Guide plate two; 517. Cylinder two; 52. Cutting part;

[0074] 61. Drive shaft; 62. Drive bevel gear one; 63. Drive bevel gear two; 64. Drive bevel gear; 65. Guide rod; 66. Pushing component; 67. Fixing ring; 68. Elastic meshing structure; 69. Moving seat; 611. Bubble removal component; 612. Rotating shaft; 613. Elastic top pin; 614. Recessed arc groove; 615. Annular groove; 616. Elastic telescopic column. Detailed Implementation

[0075] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0076] Example 1

[0077] A type of heat-insulating self-adhesive waterproof membrane, such as Figure 1 As shown, from top to bottom, it includes a surface heat insulation film 110, a heat insulation and waterproof adhesive layer 120, and a release film 130;

[0078] The surface heat insulation film 110 includes, from top to bottom, a PET heat-resistant layer 111 and an aluminum surface layer 112;

[0079] The chemical composition of the thermal insulation and waterproof adhesive layer 120, by weight, includes:

[0080] 30 parts of butyl rubber and fluorosilicone rubber, with a mass ratio of 3:1; 7 parts of terpene resin; 22 parts of polyolefin adhesive; 34 parts of filler, which is a mixture of nano-calcium powder and fumed SiO2 with a mass ratio of 5:1.

[0081] Butyl rubber and fluorosilicone rubber are plasticized on a two-roll mill for 5-10 minutes at a temperature of 80-120℃ to ensure thorough plasticization and uniform mixing.

[0082] It is then fed into a kneader, where resin, adhesive, and filler are added in sequence for mixing. The speed is controlled at 50-100 rpm and the temperature at 180-220℃. After thorough mixing, a heat-insulating and waterproof adhesive is obtained.

[0083] Slowly add the weighed resin into the kneader, keep the temperature of the kneader at 180-200℃, adjust the speed to 60-70 rpm, and continue mixing and refining for 4-6 minutes to make the resin evenly dispersed in the colloid and enhance the strength and stability of the colloid.

[0084] Add the polyolefin binder to the kneader, increase the kneader speed to 80-90 rpm, and mix and refining for 5-7 minutes to ensure that the binder is fully integrated with the colloid and resin, thereby further improving the adhesion between the components.

[0085] The initially uniformly mixed nano-calcium powder and fumed SiO2 filler mixture is slowly added to a kneader, and the kneader speed is reduced to 50-70 rpm. The mixture is then kneaded for 5-8 minutes to ensure the filler is fully dispersed. During the addition and mixing process, the state of the mixture is closely monitored to prevent clumping or uneven distribution of the filler, ultimately forming a uniform heat-insulating and waterproof adhesive.

[0086] The heat-insulating and waterproof adhesive is evenly coated on the surface of the PET heat-resistant layer 111 using a coating machine, with the thickness controlled at 2-4mm, to obtain the heat-insulating and waterproof adhesive layer 120. The release film 130 is then rolled onto the heat-insulating and waterproof adhesive layer 120 to obtain the heat-insulating self-adhesive waterproof roll.

[0087] Example 2

[0088] Unlike Example 1:

[0089] The chemical composition of the thermal insulation and waterproof adhesive layer 120, by weight, includes:

[0090] 28 parts of butyl rubber and fluorosilicone rubber, with a mass ratio of 3:1 for butyl rubber and fluorosilicone rubber, 8 parts of a mixture of C5 and C9 in equal proportions, 20 parts of polyolefin adhesive, and 36 parts of filler, which is a mixture of nano-calcium powder and fumed SiO2 with a mass ratio of 5:1.

[0091] The product performance specifications are as follows:

[0092]

[0093] This demonstrates that the product can withstand low and high temperature environments, maintain tack for more than 20 minutes, performs well at low temperatures, and exhibits flexible creep and penetration capabilities, allowing it to penetrate into the gaps in the substrate. It possesses superior adhesion and anti-aging properties, which are not found in traditional vulcanized adhesive layers.

[0094] Example 3

[0095] like Figures 2 to 13 As shown, the production equipment for heat-insulating self-adhesive waterproof membrane includes:

[0096] The glue application assembly includes a hot melt feeder 11, a high-pressure glue pump 12, and a glue dispensing die 13. The hot melt feeder 11 is equipped with a feed hopper at one end, a spiral conveyor rod inside for conveying glue into the high-pressure glue pump 12, and an intermediate box 14 at the end. The high-pressure glue pump 12 is installed between the intermediate box 14 and the glue dispensing die 13. The glue dispensing die 13 is provided with a glue dispensing channel. The glue inlet of the glue dispensing die 13 is connected to the glue outlet of the high-pressure glue pump 12 through a pipe.

[0097] Conveying assembly one conveys the surface heat insulation film 110. Conveying assembly one includes an air shaft 21, a front conveying roller 22, a rear conveying roller 23, and a coating roller 24. The air shaft 21 is equipped with a geared motor that drives its own rotation. The coating roller 24 is arranged at the tail of the glue dispensing die head 13. The glue dispensing die head 13 applies glue to the surface heat insulation film 110 passing through the coating roller 24 to obtain a heat-insulating and waterproof adhesive layer 120.

[0098] Conveying component two is arranged above conveying component one. Conveying component two is used to convey release film 130. Conveying component two includes front conveying roller 33 and air expansion shaft two 32. Air expansion shaft two 32 is equipped with a geared motor to drive its own rotation.

[0099] The composite component rolls the release film 130 onto the heat-insulating and waterproof adhesive layer 120 to obtain a heat-insulating self-adhesive waterproof membrane. The composite component includes a composite pressure roller 41, a composite pressure roller 42, and an edge control component. The composite pressure roller 41 and the composite pressure roller 42 are arranged front and rear and located between the glue application roller 24 and the front conveying roller 33. The edge control component is distributed between the composite pressure roller 41 and the composite pressure roller 42 and is set independently. The edge control component is arranged vertically as a whole. The edge control component moves synchronously with the composite pressure roller under the action of the composite pressure roller 41 and the composite pressure roller 42.

[0100] The cutting and winding assembly is located at the end of the composite assembly and performs winding and cutting of the roll material.

[0101] The surface heat insulation film 110 roll on the air expansion shaft 21 is actively released. The surface heat insulation film 110 passes through the front conveyor roller 22 and the rear conveyor roller 23 to reach the glue coating roller 24. At this point, the PET heat-resistant film of the surface heat insulation film 110 faces the glue dispensing die 13. The heat insulation and waterproof adhesive is fed into the glue dispensing die 13 through the hot melt feeder 11 and the high-pressure glue pump 12. The glue dispensing die 13 applies the heat insulation and waterproof adhesive to the surface heat insulation film 110. The release film 130 is actively released through the air expansion shaft 32 and conveyed to the composite component through the front conveyor roller 33. The heat insulation self-adhesive waterproof roll is processed under the pressure of the composite pressure roller. During the composite rolling, the edge control component controls the edge position of the heat insulation and waterproof adhesive to prevent the heat insulation and waterproof adhesive from overflowing and sticking to the composite pressure roller or sticking the ends of the roll together after subsequent winding. Finally, the cutting and winding component is used to actively cut and wind up the roll.

[0102] In order to achieve consistent control of the glue edge, the glue edge control component in the production equipment includes two sets of glue edge rollers 44. The two sets of glue edge rollers 44 are arranged along the length direction of the composite pressure roller. The glue edge rollers 44 are provided with constraint grooves, and glue edge control strips 43 are wound inside the constraint grooves.

[0103] The adhesive edge control belt 43 includes an alloy steel belt 431, which is wound around the groove. An elastic de-adhesive strip 432 is provided on the side of the alloy steel belt 431 away from the groove. The elastic de-adhesive strip 432 is distributed between the surface heat insulation film 110 and the release film 130 and drives the alloy steel belt 431 to run synchronously under the squeezing action of two composite pressure rollers.

[0104] The composite pressure roller drives the rubber edge control belt 43, which is deformed by extrusion, to run synchronously. During operation, the elastic degumming strip 432 is deformed by pressure, which drives the entire rubber edge control belt 43 to run synchronously, thereby controlling the consistency of the rubber edge.

[0105] To accommodate adjustments to the adhesive coating thickness and the cleaning and replacement of the dispensing die 13 after each application, the dispensing die 13 is positioned relative to the coating roller 24 in the production equipment. Connecting blocks 131 are installed at both ends of the dispensing die 13, and the connecting blocks 131 are fixed on the rotating plate 132. The rotating plate 132 is rotatably mounted on the frame 133, and a telescopic cylinder 134 is installed on the frame 133. The piston rod of the telescopic cylinder 134 is connected to the end of the rotating plate 132 away from the dispensing die 13 and is slidably fitted with the rotating plate 132.

[0106] The telescopic cylinder 134 drives the rotating plate 132 to rotate at a certain angle, moving it closer to or further away from the glue coating roller 24, thereby adjusting the distance between the glue mold head 13 and the glue coating roller 24.

[0107] In order to complete the online cutting and winding operations without stopping the machine, the cutting and winding assembly in the production equipment includes a rotating frame 51, a power assembly for driving the rotating frame 51 to rotate, a cutting piece 52, and a film guide.

[0108] Two sets of winding structures are arranged on the rotating frame 51. The winding structure includes an air shaft 511 and a power component that drives the air shaft 511 to rotate.

[0109] The guiding component includes a cylinder 512, with a connecting arm 513 hinged to the output end of the cylinder 512. A rod shaft 514 is connected to the end of the connecting arm 513. A guiding plate 515 is mounted on the rod shaft 514. A guiding plate 516 is hinged to the end of the guiding plate 515 away from the rod shaft 514. A cylinder 517 is mounted on the side of the guiding plate 515 facing away from the rotating frame 51. The output end of the cylinder 517 is hinged to the guiding plate 516. The guiding plate 516 is used to guide the cut end of the heat-insulating self-adhesive waterproof membrane to the corresponding air expansion shaft 32 for winding.

[0110] The cutting component 52 is placed between the two sets of winding structures to perform online cutting of the heat-insulating self-adhesive waterproof membrane. The cutting component 52 is a pneumatic flying knife that runs along the axis of the parallel air expansion shaft 511. This type of flying knife is a mature product on the market, so it will not be described in detail.

[0111] The two air shafts 511 are air shaft A and air shaft B, respectively. During winding, after air shaft A has wound the roll to the set length or number of turns, the power component drives the rotating frame 51 to swap the positions of air shaft A and air shaft B. During this period, air shaft B maintains the same speed as air shaft A under the action of its own power component. When it contacts the roll, the piston rod of cylinder 512 moves outward, causing the connecting arm 513 and the rod shaft 514 to deflect, and the guide plate... The inner roller of 515 contacts the roll material, and the cutter 52 cuts the roll material. After cutting, the air shaft A rewinds the cut part of the roll material and stops. The roll material is then removed, and a new roll is installed on the air shaft A and double-sided tape is attached to the surface of the roll. At the same time as the cutting is completed, the cylinder 517 opens and flips the guide plate 516 upward, guiding the cut end of the roll material to the front end of the air shaft B, where it is wrapped around the roll material to be fed in.

[0112] During the composite roll forming process, some gas will exist between the waterproof adhesive layer and the release film 130. After rolling, air bubbles will be present. In the production equipment, a de-bubbling component is arranged between the cutting and winding assembly and the composite assembly. The de-bubbling component is distributed on the side of the heat-insulating self-adhesive waterproof roll that is away from the adhesive coating assembly.

[0113] The defoaming assembly includes a drive shaft 61, a first drive bevel gear 62, a second drive bevel gear 63, a drive bevel gear 64, a guide rod 65, and a pusher 66. One end of the drive shaft 61 is equipped with an elastic meshing structure 68, and the other end is equipped with a fixing ring 67. Both ends of the fixing ring 67 are provided with transmission parts. The first drive bevel gear 62 and the second drive bevel gear 63 are slidably fitted on the outside of the drive shaft 61 and distributed on both sides of the fixing ring 67. The first drive bevel gear 62 and the second drive bevel gear 63 are independently mounted on the frame 133 by bearings, or they can be set independently and will not change displacement when the drive shaft 61 is displaced. The elastic meshing structure 68 is mounted on the frame 133, or it can be set independently and only needs to be kept in a fixed state.

[0114] The fixed ring 67 meshes with one of the transmission bevel gears. The drive bevel gear 64 is meshed between the first transmission bevel gear 62 and the second transmission bevel gear 63. The drive bevel gear 64 is equipped with a servo motor. The transmission shaft 61 is driven by a moving seat 69. The moving seat 69 is equipped with a bubble removal component 611. The guide rod 65 is independently set and slides with the moving seat 69 to guide the moving seat 69. The position of the pusher 66 is adjustable and installed on the guide rod 65. By adjusting the position of the two pushers 66, the bubble removal stroke is completed.

[0115] The bubble-removing component 611 is provided with a rotating shaft 612, which is mounted on the movable seat 69 via a bearing. The bubble-removing component 611 is provided with an annular groove 615, and the movable seat 69 is provided with an elastic top pin 613. The elastic top pin 613 is fitted in the annular groove 615. The annular groove 615 is provided with two sets of symmetrically distributed recessed arc grooves 614, and the ends of the recessed arc grooves 614 and the elastic top pins 613 are adapted to each other.

[0116] The pusher 66 includes a mounting plate with two elastic telescopic columns 616, one long and one short, for pushing the bubble-expelling component 611 to switch the bubble-expelling angle.

[0117] The elastic meshing structure 68 includes a mounting sleeve, which is independently arranged at the end of the drive shaft 61. Two constraint rings are provided on the drive shaft 61. A side hole is installed on the mounting sleeve, and a set screw, a spring and a steel ball are installed in the side hole. The steel ball abuts against one of the constraint rings under the action of the set screw and the spring.

[0118] A servo motor drives the drive bevel gear 64 to rotate, which in turn drives the transmission bevel gear. The fixed ring 67 meshes with one of the transmission bevel gears, causing the transmission shaft 61 to rotate as well. This moves the moving seat 69 along the guide rod 65, which is fixed to the frame 133. The bubble removal component 611 moves longitudinally relative to the roll material, scraping away air bubbles between the release film 130 and the adhesive layer. When it reaches the end position, the angle of the bubble removal component 611 is adjusted by the action of the relatively long elastic telescopic column 616. That is, the elastic top pin 613 moves from one set of recessed arc grooves 614 to another set of recessed arc grooves 614. After the angle adjustment... At this point, the shorter elastic telescopic column 616 is in contact (without exerting force on the bubble-expelling component 611) or not in contact. The drive shaft 61 continues to rotate, causing the moving seat 69 and the bubble-expelling component 611 to continue moving one end away. After both sets of elastic telescopic columns 616 are compressed to a certain extent, the drive shaft 61 is obstructed and moves away from the elastic telescopic column 616. The steel ball enters another constraint ring, and the fixed ring 67 then meshes with another transmission bevel gear, completing the reversal. This causes the moving seat 69 and the bubble-expelling component 611 to run in the opposite direction. It should be noted that the left and right reciprocating cyclic running paths of the bubble-expelling component 611 in this embodiment overlap at least partially.

[0119] A method for preparing a heat-insulating self-adhesive waterproof membrane, comprising the following steps:

[0120] Butyl rubber and fluorosilicone rubber are plasticized on a two-roll mill for 5-10 minutes at a temperature of 80-120℃ to ensure thorough plasticization and uniform mixing.

[0121] It is then fed into a kneader, where resin, adhesive, and filler are added in sequence for mixing. The speed is controlled at 50-100 rpm and the temperature at 180-220℃. After thorough mixing, a heat-insulating and waterproof adhesive is obtained.

[0122] The heat insulation and waterproof adhesive is fed into the dispensing die channel of the dispensing die head 13 by the hot melt feeder 11 and the high pressure adhesive pump 12. The gap between the dispensing die channel and the coating roller 24 is adjusted in advance to control the required coating thickness.

[0123] Step 2, apply glue

[0124] The surface heat insulation film 110 is released by the air shaft 21 and conveyed to the glue coating roller 24 via the front conveyor roller 22 and the rear conveyor roller 23. The glue coating operation is performed on the PET heat-resistant layer surface of the surface heat insulation film 110 by the glue dispensing die head 13 to obtain the heat insulation and waterproof adhesive layer 120. The heat insulation and waterproof adhesive layer 120 is conveyed to the composite pressure roller 41 along with the surface heat insulation film 110.

[0125] Step 3, compounding

[0126] Release film 130 is released by air shaft 32 and conveyed to composite pressure roller 42 via front conveyor roller 33;

[0127] Composite roller 1 41 and composite roller 2 42 rotate to press the release film 130, the heat-insulating and waterproof adhesive layer 120, and the surface heat-insulating film 110 into a heat-insulating self-adhesive waterproof roll material.

[0128] During the composite pressing process, the adhesive edge control strips 43 distributed at both ends of the heat insulation and waterproof adhesive layer 120 move together under the action of the composite pressure roller to control the width at both ends of the heat insulation and waterproof adhesive layer 120 and press it.

[0129] Step 4, Defoaming

[0130] After the composite pressing is used to obtain the heat-insulating self-adhesive waterproof membrane, the servo motor drives the drive gear to rotate, which in turn drives the transmission bevel gear to rotate the transmission shaft 61. The moving seat 69 moves along the length of the guide rod 65. The defoaming component 611 applies pressure to the release film 130 side to defoam. When it reaches the position of the pusher 66 at the end, the angle of the defoaming component 611 is adjusted under the action of the pusher 66. The transmission shaft 61 is driven to move in the opposite direction together with the defoaming component 611 and the moving seat 69 under the action of the elastic meshing structure 68, thus completing the defoaming operation of the heat-insulating self-adhesive waterproof membrane.

[0131] Step 5: Roll up and cut

[0132] The two sets of air shafts 511 are air shaft A and air shaft B, respectively. The heat-insulating self-adhesive waterproof membrane is wound up under the action of air shaft A through its own power component. When air shaft A is wound to the set length, air shaft B starts to rotate under the action of its own power component and rotates at the same speed as air shaft A. The power component drives the rotating frame 51 to rotate, rotating air shaft B onto the heat-insulating self-adhesive waterproof membrane. The cutting piece 52 cuts the heat-insulating self-adhesive waterproof membrane online.

[0133] Cylinder 512 drives connecting arm 513 via rod shaft 514 to drive guide plate 515 to flip up to the outside of air shaft B. Cutting piece 52 cuts the heat-insulating self-adhesive waterproof membrane online. After cutting, cylinder 517 immediately opens to drive guide plate 516 to flip up and wrap the heat-insulating self-adhesive waterproof membrane around air shaft B. The end of the heat-insulating self-adhesive waterproof membrane on air shaft A is fixed to complete the winding operation.

[0134] Step 6, Change the roll

[0135] Remove the completed heat-insulating self-adhesive waterproof membrane from the air shaft A, reinstall a new winding drum, and apply double-sided tape to the surface, ready for the next winding operation.

[0136] The above description is merely a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. The substitutions may be replacements of some structures, devices, or method steps, or they may be complete technical solutions. Equivalent substitutions or modifications made to the technical solutions and inventive concepts of the present invention should all be covered within the scope of protection of the present invention.

Claims

1. A production equipment for a heat-insulating self-adhesive waterproof membrane, characterized in that, include: The glue application assembly includes a hot melt feeder (11), a high-pressure glue pump (12), and a glue dispensing die (13). The hot melt feeder (11) is equipped with a feed hopper at one end, a spiral conveyor rod inside for conveying glue into the high-pressure glue pump (12), and an intermediate box (14) at the end. The high-pressure glue pump (12) is installed between the intermediate box (14) and the glue dispensing die (13). The glue dispensing die (13) is provided with a glue dispensing channel. The glue inlet of the glue dispensing die (13) is connected to the glue outlet of the high-pressure glue pump (12) through a pipe. Conveying assembly one conveys the surface heat insulation film (110). Conveying assembly one includes an air shaft one (21), a front conveying roller (22), a rear conveying roller (23), and a coating roller (24). The coating roller (24) is arranged at the tail of the glue dispensing die (13). The glue dispensing die (13) applies glue to the surface heat insulation film (110) passing through the coating roller (24) to obtain a heat-insulating and waterproof adhesive layer (120). Conveying component two is arranged above conveying component one. Conveying component two is used to convey release film (130). Conveying component two includes front conveying roller (33) and air shaft two (32). The composite component rolls the release film (130) onto the heat-insulating and waterproof adhesive layer (120) to obtain a heat-insulating self-adhesive waterproof membrane. The composite component includes a composite pressure roller one (41), a composite pressure roller two (42), and an edge control component. The composite pressure roller one (41) and the composite pressure roller two (42) are arranged in front and behind and located between the glue coating roller (24) and the front conveying roller (33). The edge control component is distributed between the composite pressure roller one (41) and the composite pressure roller two (42) and is set independently. The edge control component is arranged vertically as a whole. The edge control component moves synchronously with the composite pressure roller under the action of the composite pressure roller one (41) and the composite pressure roller two (42). The cutting and winding assembly is located at the end of the composite assembly and performs winding and cutting processing on the roll material. The adhesive edge control assembly includes two sets of adhesive edge rollers (44), which are arranged along the length of the composite pressure roller. The adhesive edge rollers (44) are provided with constraint grooves, and an adhesive edge control strip (43) is wound inside the constraint grooves. The adhesive edge control strip (43) includes an alloy steel strip (431), which is wound around the groove. An elastic de-adhesive strip (432) is provided on the side of the alloy steel strip (431) away from the groove. The elastic de-adhesive strip (432) is distributed between the surface heat insulation film (110) and the release film (130) and drives the alloy steel strip (431) to run synchronously under the squeezing action of two composite pressure rollers. The position of the dispensing die (13) relative to the coating roller (24) is adjustable. Connecting blocks (131) are installed at both ends of the dispensing die (13). The connecting blocks (131) are fixed on the rotating plate (132). The rotating plate (132) is rotatably mounted on the frame (133). A telescopic cylinder (134) is installed on the frame (133). The piston rod of the telescopic cylinder (134) is connected to the end of the rotating plate (132) away from the dispensing die (13) and is slidably fitted with the rotating plate (132). The cutting and winding assembly includes a rotating frame (51), a power assembly for driving the rotating frame (51) to rotate, a cutting piece (52), and a film guide; Two sets of winding structures are provided on the rotating frame (51). The winding structure includes an air shaft three (511) and a power component that drives the air shaft three (511) to rotate. A bubble-removing component is provided between the cutting and winding assembly and the composite assembly. The bubble-removing component is distributed on the side of the heat-insulating self-adhesive waterproof membrane that is opposite to the adhesive coating assembly.

2. The production equipment for a heat-insulating self-adhesive waterproof membrane according to claim 1, characterized in that, The guiding film component includes a cylinder (512), the output end of the cylinder (512) is hinged to a connecting arm (513), the end of the connecting arm (513) is connected to a rod shaft (514), a guiding film plate (515) is mounted on the rod shaft (514), a guiding film plate (516) is hinged to the end of the guiding film plate (515) away from the rod shaft (514), a cylinder (517) is mounted on the side of the guiding film plate (515) facing away from the rotating frame (51), the output end of the cylinder (517) is hinged to the guiding film plate (516), and the guiding film plate (516) is used to guide the cut end of the heat-insulating self-adhesive waterproof roll to the corresponding air expansion shaft (32) for winding operation; The cutting component (52) is placed between the two sets of winding structures to perform online cutting of the heat-insulating self-adhesive waterproof membrane.

3. The production equipment for a heat-insulating self-adhesive waterproof membrane according to claim 2, characterized in that, The defoaming assembly includes a drive shaft (61), a first drive bevel gear (62), a second drive bevel gear (63), a drive bevel gear (64), a guide rod (65), and a pusher (66). One end of the drive shaft (61) is equipped with an elastic meshing structure (68), and the other end is equipped with a fixing ring (67). Both ends of the fixing ring (67) are provided with drive parts. The first drive bevel gear (62) and the second drive bevel gear (63) are slidably fitted on the outside of the drive shaft (61) and distributed on both sides of the fixing ring (67). (67) meshes with one of the transmission bevel gears. The drive bevel gear (64) is meshed between the first transmission bevel gear (62) and the second transmission bevel gear (63). The drive bevel gear (64) is equipped with a servo motor. The transmission shaft (61) is driven and fitted with a moving seat (69). The moving seat (69) is equipped with a bubble decanter (611). The guide rod (65) is independently set and slides with the moving seat (69) to guide the moving seat (69). The pusher (66) is adjustablely installed on the guide rod (65).

4. The production equipment for a heat-insulating self-adhesive waterproof membrane according to claim 3, characterized in that, The bubble removal component (611) is provided with a rotating shaft (612), which is mounted on the movable seat (69) via a bearing. The bubble removal component (611) is provided with an annular groove (615), and the movable seat (69) is provided with an elastic top pin (613). The elastic top pin (613) is fitted in the annular groove (615). The annular groove (615) is provided with two sets of symmetrically distributed sinking arc grooves (614), and the ends of the sinking arc grooves (614) and the elastic top pins (613) are adapted to each other. The pusher (66) includes a mounting plate with an elastic telescopic column (616) for pushing the bubble-expelling component (611) to switch the bubble-expelling angle.

5. A method for preparing a heat-insulating self-adhesive waterproof membrane, using the production equipment for a heat-insulating self-adhesive waterproof membrane as described in claim 4, characterized in that, The preparation steps are as follows: Step 1, Applying the heat-insulating and waterproof adhesive Butyl rubber and fluorosilicone rubber are plasticized in a thin pass on a two-roll mill for 5-10 minutes at a temperature of 80-120℃ to ensure thorough plasticization and uniform mixing. It is then fed into a kneader, where resin, adhesive, and filler are added in sequence for mixing. The speed is controlled at 50-100 rpm and the temperature at 180-220℃. After thorough mixing, a heat-insulating and waterproof adhesive is obtained. The heat insulation and waterproof adhesive is fed into the dispensing mold channel of the dispensing mold head (13) by the hot melt feeder (11) and the high pressure adhesive pump (12). The gap between the dispensing mold channel and the coating roller (24) is adjusted in advance to control the required coating thickness. Step 2, apply glue The surface heat insulation film (110) is released by the air shaft (21) and conveyed to the glue coating roller (24) via the front conveyor roller (22) and the rear conveyor roller (23). The glue coating operation is performed on the PET heat-resistant layer (111) of the surface heat insulation film (110) by the glue dispensing die (13) to obtain the heat insulation and waterproof adhesive layer (120). The heat insulation and waterproof adhesive layer (120) is conveyed to the composite pressure roller (41) along with the surface heat insulation film (110). Step 3, compounding Release film (130) is released by air shaft two (32) and conveyed to composite pressure roller two (42) via front conveyor roller (33); Composite roller one (41) and composite roller two (42) rotate to press the release film (130), the heat-insulating and waterproof adhesive layer (120), and the surface heat-insulating film (110) into a heat-insulating self-adhesive waterproof roll material; During the composite pressing, the adhesive edge control strips (43) distributed at both ends of the heat insulation and waterproof adhesive layer (120) move together under the action of the composite pressure roller to control the width at both ends of the heat insulation and waterproof adhesive layer (120) and press. Step 4, Defoaming After the composite pressing is used to obtain the heat-insulating self-adhesive waterproof membrane, the servo motor drives the drive gear to rotate, which drives the transmission bevel gear to rotate the transmission shaft (61). The moving seat (69) runs along the length of the guide rod (65). The defoaming part (611) applies pressure to the release film (130) side to defoam. When it runs to the position of the pusher (66) at the end, the angle of the defoaming part (611) is adjusted under the action of the pusher (66), and the transmission shaft (61) is driven to complete the defoaming part (611) and the moving seat (69) to run in the opposite direction together under the action of the elastic meshing structure (68) to complete the defoaming operation of the heat-insulating self-adhesive waterproof membrane. Step 5: Roll up and cut Two sets of air shafts (511) are air shaft A and air shaft B respectively. The heat-insulating self-adhesive waterproof membrane is wound up under the action of its own power component. When the air shaft A is wound up to the set length, the air shaft B starts to rotate under the action of its own power component and rotates at the same speed as the air shaft A. The power component drives the rotating frame (51) to rotate and rotate the air shaft B onto the heat-insulating self-adhesive waterproof membrane. The cutting component (52) cuts the heat-insulating self-adhesive waterproof membrane online. Cylinder 1 (512) drives connecting arm (513) to drive guide plate 1 (515) to flip up to the outside of air shaft B via rod shaft (514). Cutting piece (52) cuts the heat-insulating self-adhesive waterproof membrane online. After cutting, cylinder 2 (517) immediately opens to drive guide plate 2 (516) to flip up and wrap the heat-insulating self-adhesive waterproof membrane around air shaft B. The end of the heat-insulating self-adhesive waterproof membrane on air shaft A is fixed to complete the winding operation. Step 6, Change the roll Remove the completed heat-insulating self-adhesive waterproof membrane from the air shaft A, reinstall a new winding drum, and apply double-sided tape to the surface, ready for the next winding operation.

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