CN117400525A - Process for forming modified asphalt waterproof coiled material with polyolefin material as matrix - Google Patents
Process for forming modified asphalt waterproof coiled material with polyolefin material as matrix Download PDFInfo
- Publication number
- CN117400525A CN117400525A CN202311127784.XA CN202311127784A CN117400525A CN 117400525 A CN117400525 A CN 117400525A CN 202311127784 A CN202311127784 A CN 202311127784A CN 117400525 A CN117400525 A CN 117400525A
- Authority
- CN
- China
- Prior art keywords
- modified asphalt
- forming
- roller body
- cylinder
- cooling
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000010426 asphalt Substances 0.000 title claims abstract description 138
- 239000000463 material Substances 0.000 title claims abstract description 115
- 229920000098 polyolefin Polymers 0.000 title claims abstract description 41
- 239000011159 matrix material Substances 0.000 title claims abstract description 37
- 238000000034 method Methods 0.000 title claims abstract description 31
- 230000008569 process Effects 0.000 title claims abstract description 26
- 238000000465 moulding Methods 0.000 claims abstract description 37
- 239000011265 semifinished product Substances 0.000 claims abstract description 30
- 239000000047 product Substances 0.000 claims abstract description 4
- 238000001816 cooling Methods 0.000 claims description 83
- 238000001125 extrusion Methods 0.000 claims description 77
- 238000002955 isolation Methods 0.000 claims description 34
- 230000007246 mechanism Effects 0.000 claims description 20
- 239000010410 layer Substances 0.000 claims description 16
- 239000002344 surface layer Substances 0.000 claims description 13
- 238000007599 discharging Methods 0.000 claims description 8
- 239000002826 coolant Substances 0.000 claims description 6
- 238000005507 spraying Methods 0.000 claims description 6
- 238000005086 pumping Methods 0.000 claims description 3
- 238000000926 separation method Methods 0.000 description 4
- 239000007921 spray Substances 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 230000004888 barrier function Effects 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 238000004513 sizing Methods 0.000 description 2
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 239000011387 rubberized asphalt concrete Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000004347 surface barrier Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C63/00—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor
- B29C63/02—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor using sheet or web-like material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C63/00—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor
- B29C63/0004—Component parts, details or accessories; Auxiliary operations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2007/00—Flat articles, e.g. films or sheets
- B29L2007/002—Panels; Plates; Sheets
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The invention relates to a molding process of a modified asphalt waterproof coiled material with a polyolefin material as a matrix, which comprises the following steps: 1) Forming a bottom layer of the coiled material; 2) Adjusting the thickness of the lower and upper modified asphalt layers; 3) Extruding the bottom isolating film, the lower modified asphalt and the matrix in the first extruding area into semi-finished product and conveying to the second extruding area; 4) And extruding the semi-finished product, the upper modified asphalt and the surface isolating film in the second extruding area to obtain the finished product. The invention can ensure the dimensional stability and the corresponding tensile strength of the matrix material at the high temperature of the modified asphalt, then the mobility of the modified asphalt is good, the thickness of the material layers formed on two sides of the matrix can be accurately controlled to meet the molding requirement, the surface of the molded coiled material is very flat, the performance of the modified asphalt is not limited, in addition, the upper and lower modified asphalt materials of the polyolefin matrix material can be one or two materials, and the thickness can be accurately controlled.
Description
The application is a divisional application of modified asphalt waterproof coiled material forming equipment and method with the application date of 2017, 10, 26, 201711013038.2 and the name of polyolefin material as a matrix.
Technical Field
The invention belongs to the field of waterproof coiled material molding, and particularly relates to a molding process of a modified asphalt waterproof coiled material with a polyolefin material as a matrix.
Background
The modified asphalt waterproof coiled material takes polyolefin materials with certain thickness as a matrix (base material), then the modified asphalt materials with certain thickness are formed on the front side and the back side of the matrix, and meanwhile, isolation films are respectively covered on the surfaces of the modified asphalt materials, so that the modified asphalt waterproof coiled material with the thickness of 2-4 mm is formed, that is, the coiled material has a five-layer structure, namely, the matrix positioned in the middle, the modified asphalt positioned on the upper surface and the lower surface of the matrix, and the surface isolation films and the bottom isolation films positioned on the upper surface of the upper modified asphalt and the bottom surface of the lower modified asphalt.
At present, in order to finish the forming processing of the modified asphalt waterproof coiled material, the process is as follows: the polyolefin material is firstly coated and immersed in an oil coating pool filled with modified asphalt material through a compression roller, then a sheet body with a certain thickness is formed through extrusion and pair rollers, and finally isolating films are coated on two sides of the sheet body, so that the modified asphalt waterproof coiled material meeting the requirements is formed.
Obviously, the waterproof roll formed by the above-described forming method has the following drawbacks:
1. the polyolefin material has high requirements on thickness and high temperature resistance, so that the polyolefin material cannot ensure the dimensional stability and corresponding tensile strength of the carcass material at high temperature.
2. The temperature of the modified asphalt must be low, otherwise, the polyolefin material is deformed by heat when passing through the modified asphalt, but when the temperature of the modified asphalt is low, the fluidity of the modified asphalt is affected, so that the modified asphalt is difficult to pump, and the surface flatness of the extruded sheet body is poor.
3. Has certain limitation on the performance of the modified asphalt. Because in general, the better the properties of the modified asphalt, the more viscous the modified asphalt, the more disadvantageous the production. Thus, high standard performance modified asphalt coils cannot be produced by this process.
4. In addition, the modified asphalt materials on the upper surface and the lower surface of the polyolefin material are one material, and the thickness on the upper surface and the thickness on the lower surface can not be precisely controlled, and only the whole thickness can be controlled.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention aims to provide a novel molding process of a modified asphalt waterproof coiled material taking a polyolefin material as a matrix.
In order to achieve the above purpose, the technical scheme of the invention is as follows: a molding process of modified asphalt waterproof coiled material with polyolefin material as matrix, the molding equipment used comprises:
forming a cold cylinder in a cylindrical shape;
a squeeze roll extending along a longitudinal direction of a molding cylinder and forming a squeeze zone with the molding cylinder;
cooling units for cooling the molding cooling cylinder and the squeeze roll, respectively;
the isolating film feeding unit comprises a bottom isolating film uncoiling mechanism and a surface isolating film uncoiling mechanism;
a carcass feeding unit;
the modified asphalt feeding unit comprises a lower modified asphalt discharging mechanism and an upper modified asphalt discharging mechanism, wherein the extruding roller comprises a first roller body and a second roller body which are arranged at intervals around the center of the forming cold cylinder, and the radian formed by the positions of the first roller body and the second roller body on the circumferential surface of the forming cold cylinder is pi/6-3 pi/4; the first roller body and the second roller body respectively form a first extrusion area and a second extrusion area with the forming cold cylinder, and the distance between the first roller body and the second roller body and the forming cold cylinder is adjustable, and the method comprises the following steps:
1) Attaching a bottom isolation film to the forming cooling cylinder and sequentially passing through the first extrusion area and the second extrusion area to form a bottom layer of the coiled material;
2) Adjusting the spacing between the first roller body and the forming cooling cylinder and the second roller body, thereby adjusting the thickness of the lower modified asphalt and the upper modified asphalt and simultaneously meeting the requirement of the whole thickness of the final coiled material;
3) Conveying the tire body to a first extrusion area by a first roller body, unloading the lower modified asphalt to a position between a bottom isolating film and the tire body in the first extrusion area, extruding the bottom isolating film, the lower modified asphalt and the tire body positioned in the first extrusion area into a semi-finished product by the first roller body and a forming cooling cylinder under the cooling of a cooling unit, and conveying the semi-finished product to a second extrusion area;
4) And conveying the surface isolation film to the second extrusion area by the second roller body, unloading the upper modified asphalt between the surface isolation film and the semi-finished product in the second extrusion area, and extruding the semi-finished product, the upper modified asphalt and the surface isolation film in the second extrusion area into finished products by the second roller body and the forming cooling cylinder under the cooling of the cooling unit to finish the forming of the modified asphalt waterproof coiled material.
According to a specific implementation and preferred aspect of the present invention, the first roller body and the second roller body are positioned to form an arc of pi/4 to pi/2 on the circumferential surface of the forming cold cylinder, and further perform two times of extrusion in a limited space. Meanwhile, the outer diameters of the first roller body and the second roller body are 1/8-1/2 of the outer diameter of the forming cold cylinder.
Preferably, when the first extrusion zone finishes extrusion and then conveys to the second extrusion zone, the semi-finished product is attached to the forming cooling cylinder from the bottom isolating film, wherein the first roller body and the forming cooling cylinder extrude the bottom isolating film, the lower modified asphalt and the carcass which are positioned in the first extrusion zone into the semi-finished product, and convey to the second extrusion zone. At this time, the semi-finished product can be cooled by a molding cold cylinder.
According to a specific implementation and preferred aspect of the present invention, the surface isolation film unwound from the surface isolation film unwinding mechanism is attached to the second roller body, the upper modified asphalt is unloaded into the second extrusion area and is located between the semi-finished product and the surface isolation film, and the modified asphalt waterproof coiled material is formed under the extrusion of the second roller body and the forming cooling cylinder.
In some embodiments, the cooling unit includes cooling assemblies located inside the forming cooling cylinder, the first roller body, and the second roller body, respectively. In the simplest mode, fluid (such as water) or internal spraying water is respectively introduced into the forming cooling cylinder, the first roller body and the second roller body, so that the cooling of the forming cooling cylinder, the first roller body and the second roller body can be realized. Meanwhile, in order to improve the cooling effect, the cooling unit further comprises a spraying component for directly spraying the cooling medium to the forming cooling cylinder and the second roller body respectively, wherein the surface layer isolating film and the bottom layer isolating film respectively prevent the cooling medium from being sprayed to the first extrusion area and the second extrusion area. The outside spray assembly not only can directly cool down the forming cooling cylinder and the second roller body, but also can flush the outer periphery of the forming cooling cylinder and the second roller body (so that the outer periphery has no foreign matters or residues), thereby ensuring the flatness of the surface after the coiled material is formed.
In some embodiments, the structure of the modified asphalt waterproof coiled material comprises a carcass at the middle part, modified asphalt at the upper and lower surfaces of the carcass, a surface layer isolating film and a bottom layer isolating film at the upper surface of the upper modified asphalt and the bottom surface of the lower modified asphalt. The radian formed by attaching the formed coiled material to the circumferential surface of the forming cooling cylinder is pi/6-pi; the external diameter of the molding cold cylinder is 1000-3000 mm; the outer diameters of the first roller body and the second roller body are 1/8-1/2 of the outer diameter of the forming cooling cylinder.
Further, the lower modified asphalt and the upper modified asphalt are respectively unloaded to the first extrusion zone and the second extrusion zone in a pumping or self-flowing mode. The modified asphalt can be conveniently and rapidly spread in a free scattering mode, so that the requirement of accurate thickness control is met.
In addition, the forming equipment also comprises a guide roller which is arranged below the forming cooling cylinder, so that the formed coiled material is attached to the forming cooling cylinder from the bottom isolation film and is guided to a required position. The guide roller is mainly used for cooling the formed coiled material and enabling the surface of the coiled material to be smooth.
Compared with the prior art, the invention has the following advantages:
according to the invention, the thickness and high temperature resistance of the polyolefin material are required, the dimensional stability and the corresponding tensile strength of the matrix material can be ensured at the high temperature of the modified asphalt, meanwhile, the temperature of the modified asphalt is not required to be low, so that the fluidity of the modified asphalt is good, and then, the thickness of a material layer formed on two sides of the matrix can be accurately controlled, so that the molding requirement is met, the surface of a molded coiled material is very flat, in addition, the universality is good, the performance of the modified asphalt is not limited, the modified asphalt material above and below the polyolefin matrix material can be one material or two materials, and the thickness above and below and the overall thickness can be accurately controlled.
Drawings
Fig. 1 is a schematic front view of a modified asphalt waterproof roll molding apparatus using polyolefin material as a matrix in example 1;
FIG. 2 is a schematic view of the structure of the molded coil material in example 1;
fig. 3 is a schematic front view of a molding apparatus for a modified asphalt waterproof roll (semi-finished product) with polyolefin material as a surface layer in example 2;
FIG. 4 is a schematic view showing the structure of a molded coil in example 2;
in the accompanying drawings: 1. forming a cold cylinder; 2. a squeeze roll; 21. a first roller body; 22. a second roller body; 3. a cooling unit; 30. a spray assembly; 4. a barrier film feeding unit; 40. a bottom isolating film uncoiling mechanism; 41. an uncoiling mechanism of the surface isolation film; 5. a carcass feeding unit; 6. a modified asphalt feeding unit; 60. a lower modified asphalt discharging mechanism; 61. an upper modified asphalt discharging mechanism; 7. a guide roller; a. a first extrusion zone; b. a second extrusion zone; 4a, a bottom isolation film; 4b, carcass; 4c, lower modified asphalt; 4e, upper modified asphalt; 4d, a surface layer isolating film.
Detailed Description
In order to make the above objects, features and advantages of the present application more comprehensible, the present application is described in detail below with reference to the accompanying drawings and detailed description. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. This application is, however, susceptible of embodiment in many other forms than those described herein and similar modifications can be made by those skilled in the art without departing from the spirit of the application, and therefore the application is not to be limited to the specific embodiments disclosed below.
In the description of the present application, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "up," "down," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," etc. indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, are merely for convenience in describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present application.
Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present application, the meaning of "plurality" is at least two, such as two, three, etc., unless explicitly defined otherwise.
In this application, unless specifically stated or limited otherwise, the terms "mounted," "connected," "secured" and the like are to be construed broadly and include, for example, either permanently connected, removably connected, or integrally formed; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be.
In this application, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature "above" and "over" a second feature may be a first feature directly above or obliquely above the second feature, or simply indicate that the first feature is higher in level than the second feature. The first feature being "under," "under" and "beneath" the second feature may be the first feature being directly under or obliquely under the second feature, or simply indicating that the first feature is less level than the second feature.
It will be understood that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "up," "down," "left," "right," and similar expressions are used herein for illustrative purposes only and are not meant to be the only embodiment.
Example 1
As shown in fig. 1 and 2, the modified asphalt waterproof coiled material molding equipment using polyolefin material as a matrix provided by the embodiment comprises a molding cold cylinder 1 which is cylindrical; a squeeze roll 2 extending along the longitudinal direction of the molding cylinder 1 and forming a squeeze zone with the molding cylinder 1; a cooling unit 3 for cooling the molding cylinder 1 and the squeeze roller 2, respectively; a barrier film supply unit 4 including a bottom barrier film unwinding mechanism 40 and a surface barrier film unwinding mechanism 41; a carcass supply unit 5 (also conventional unwinding); the modified asphalt feeding unit 6 comprises a lower modified asphalt discharging mechanism 60 and an upper modified asphalt discharging mechanism 61, wherein the extruding roller 2 comprises a first roller body 21 and a second roller body 22 which are distributed around the center of the forming cold cylinder 1 at intervals, the radian formed by the positions of the first roller body 21 and the second roller body 22 on the circumferential surface of the forming cold cylinder 1 is pi/6-3 pi/4, the first roller body 21 and the second roller body 22 respectively form a first extruding area a and a second extruding area b with the forming cold cylinder 1, and the distance between the first roller body 21 and the second roller body 22 and the forming cold cylinder 1 can be set in an adjustable way; the bottom isolation film 4a unwound from the bottom isolation film unwinding mechanism 40 is attached to the forming cooling cylinder 1 and passes through the first extrusion area a and the second extrusion area b in sequence; the carcass 4b supplied from the carcass supply unit 5 is attached to the first roller body 21 and conveyed into the first pressing zone a; the lower modified asphalt 4c is unloaded into the first extrusion zone a and is positioned between the bottom isolating membrane 4a and the carcass 4 b; the first roller body 21 and the forming cooling cylinder 1 extrude the bottom isolation film 4a, the lower modified asphalt 4c and the carcass 4b which are positioned in the first extrusion zone a into semi-finished products, and the semi-finished products are conveyed to the second extrusion zone b; the surface isolation film 4d unwound from the surface isolation film unwinding mechanism 41 is attached to the second roller body 22, the upper modified asphalt 4e is unloaded into the second extrusion area b and between the semi-finished product and the surface isolation film 4d, and the modified asphalt waterproof coiled material is formed under the extrusion of the second roller body 22 and the forming cooling cylinder 1. Specifically, the structure of the modified asphalt waterproof coiled material comprises a matrix 4b positioned in the middle, modified asphalt 4e and 4c positioned on the upper surface and the lower surface of the matrix 4b, a surface layer isolating film 4d and a bottom layer isolating film 4a positioned on the upper surface of the upper modified asphalt 4e and the bottom surface of the lower modified asphalt 4 c.
The first roller body 21 and the second roller body 22 are positioned at the radian of pi/4-pi/2 formed on the circumferential surface of the molding cooling cylinder 1. Thereby completing the two pressing operations in a limited space.
When the first extrusion zone a is conveyed to the second extrusion zone b after extrusion is finished, the semi-finished product is attached to the forming cooling cylinder 1 from the bottom isolating film 4a. At this time, the semi-finished product can be subjected to cooling treatment by the molding cold cylinder 1.
The cooling unit 3 comprises cooling modules (not shown but not easily imagined) inside the forming cylinder 1, the first roller body 21 and the second roller body 22, respectively. In the simplest manner, fluid (such as water) is introduced into the forming cooling cylinder 1, the first roller body 21 and the second roller body 22, or water is sprayed into the forming cooling cylinder 1, the first roller body 21 and the second roller body 22, respectively. Not described in detail herein.
Meanwhile, in order to further improve the cooling effect, in this example, the cooling unit 3 further includes a spray assembly 30 for directly spraying the cooling medium to the forming cylinder 1 and the second roller body 22, respectively, wherein the surface layer separation film 4d and the bottom layer separation film 4a prevent the cooling medium from being sprayed to the first extrusion zone a and the second extrusion zone b, respectively. The outer spray assembly 30 can directly cool the forming cooling cylinder 1 and the second roller body 22, thereby ensuring the flatness of the surface after the coil is formed.
Meanwhile, the forming equipment further comprises a guide roller 7 which is arranged below the forming cold cylinder 1, enables the formed coiled material to be attached to the forming cold cylinder 1 from the bottom isolation film 4a and guides the coiled material to a required position. The guide roller 7 is mainly used for cooling the formed coiled material and enabling the surface of the coiled material to be smooth.
In this example, the radian of the formed coil attached to the circumferential surface of the formed cylinder is pi/6. The external diameter of the molding cold cylinder is 1800mm, and the external diameters of the first roller body and the second roller body are 300mm of the external diameter of the molding cold cylinder.
In addition, the lower modified asphalt 4c and the upper modified asphalt 4e are respectively unloaded to the first extrusion area a and the second extrusion area b in a free falling manner, and are unloaded in a pumping or self-flowing manner, so that the requirement of accurate thickness control is met.
Meanwhile, the unwinding of the bottom layer separation film 4a, the surface layer separation film 4d and the carcass 4b is a conventional means in the art, and will not be described in detail in this application.
In summary, the molding process of the present embodiment is as follows: 1) Attaching a bottom layer isolating film 4a on the forming cooling cylinder 1 and sequentially passing through a first extrusion area a and a second extrusion area b to form a bottom layer of the coiled material; 2) Adjusting the spacing between the first roller body 21 and the second roller body 22 and the forming cooling cylinder 1, thereby adjusting the thickness of the lower modified asphalt 4c and the upper modified asphalt 4e and simultaneously meeting the overall thickness requirement of the final coiled material; 3) The first roller body 21 conveys the carcass 4b to the first extrusion zone a, the lower modified asphalt 4c is unloaded between the bottom isolating film 4a and the carcass 4b of the first extrusion zone a, and the first roller body 21 and the forming cooling cylinder 1 extrude the bottom isolating film 4a, the lower modified asphalt 4c and the carcass 4b which are positioned in the first extrusion zone a into semi-finished products under the cooling of the cooling unit 3, and the semi-finished products are conveyed to the second extrusion zone b; 4) And conveying the surface isolation film 4d to the second extrusion area b by the second roller body 22, unloading the upper modified asphalt 4e between the surface isolation film 4d and the semi-finished product in the second extrusion area b, and simultaneously extruding the semi-finished product, the upper modified asphalt 4e and the surface isolation film 4d positioned in the second extrusion area b into finished products by the second roller body 22 and the forming cooling cylinder 1 under the cooling of the cooling unit 3 to finish the forming of the modified asphalt waterproof coiled material.
In summary, the production process can produce waterproof coiled materials with certain thickness by taking polyolefin materials as a matrix, coating modified asphalt on the matrix and compounding isolation materials on two sides, and meanwhile, compared with coiled materials formed by the prior art, the coiled materials formed by the method overcomes the defects of the prior coiled materials, and mainly comprises the following aspects:
1. the thickness and high temperature resistance requirements of the polyolefin material can be reduced, and the dimensional stability and the corresponding tensile strength of the matrix material can be ensured at the high temperature of the modified asphalt.
2. The temperature of the modified asphalt is not required to be low, so that the fluidity of the modified asphalt is good. The modified asphalt is easy to pump, and the surface of the semi-finished product is good in flatness.
3. There is no limitation on the properties of the modified asphalt. Thus, high standard performance modified asphalt coils can also be produced by this process.
4. In addition, the modified asphalt materials on the upper surface and the lower surface of the polyolefin matrix material can be one material or two materials, and the thickness on the upper surface and the thickness on the lower surface and the whole thickness can be precisely controlled.
Example 2
As shown in fig. 3 and 4, the molding apparatus is a simplified version of the molding apparatus of example 1 (or called a modified asphalt waterproof roll molding apparatus having a polyolefin material as a surface layer), which is very similar to example 1 in structure, except that in this example, only one layer of modified asphalt and one layer of separator film are attached to the second roll body, the bottom separator film and the modified asphalt form a sheet body under the extrusion of the first roll body and the molding cold cylinder, and then the polyolefin material and the sheet body are formed into a modified asphalt waterproof roll having a polyolefin material as a surface layer under the extrusion of the second roll body and the molding cold cylinder.
Specifically, the formed coil in this example comprises a polyolefin material in the surface layer, a modified asphalt in the middle layer, and a separator in the bottom layer.
The working principle is that the isolating film material is attached to a large forming cooling cylinder, enters along with the running of the cooling cylinder, adjusts the distance between the first roller body and the second roller body and the distance between the first roller body and the second roller body respectively to form a first extrusion area and a second extrusion area meeting the set size, the modified asphalt rubber material automatically flows or pumps into the first extrusion area through a storage tank, a semi-finished sheet is formed under the extrusion of the first roller body and the forming cooling cylinder, then the semi-finished sheet runs along the surface of the forming cooling cylinder to the second extrusion area and is attached to the polyolefin material attached to the second roller body, and the modified asphalt waterproof coiled material taking the polyolefin material as a surface layer is formed under the extrusion of the second roller body and the forming cooling cylinder.
The forming equipment adopting the embodiment has the main advantages that:
1. as the modified asphalt sizing material is cooled by a section of radian when running on a cooling cylinder, the temperature of the modified asphalt sizing material is rapidly reduced, and when the cooled sheet material is pressed with the upper surface material which is polyolefin material, the thickness and high temperature resistance requirements of the polyolefin material can be reduced, and the produced material keeps good appearance surface performance.
2. The temperature of the modified asphalt is not required to be low, so that the fluidity of the modified asphalt is good. And the flatness of the surface of the semi-finished product is good under the cooling of the cooling unit.
3. There is no limitation on the properties of the modified asphalt. Thus, high standard performance modified asphalt coils can also be produced by this process.
4. The thickness of the modified asphalt and the thickness of the finally formed modified asphalt waterproof coiled material taking the polyolefin material as the surface layer can be accurately controlled, and the processing requirements can be more easily met.
The above embodiments are only for illustrating the technical concept and features of the present invention, and are intended to enable those skilled in the art to understand the present invention and to implement the same, but are not intended to limit the scope of the present invention, and all equivalent changes or modifications made according to the spirit of the present invention should be included in the scope of the present invention.
Claims (10)
1. The molding process of the modified asphalt waterproof coiled material with the polyolefin material as the matrix is characterized in that the molding equipment adopted by the molding process comprises the following steps:
forming a cold cylinder in a cylindrical shape;
the extrusion roller extends along the length direction of the molding cold cylinder and forms an extrusion section with the molding cold cylinder;
cooling units for cooling the molding cooling cylinder and the squeeze roll, respectively;
the isolating film feeding unit comprises a bottom isolating film uncoiling mechanism and a surface isolating film uncoiling mechanism;
a carcass feeding unit;
the modified asphalt feeding unit comprises a lower modified asphalt discharging mechanism and an upper modified asphalt discharging mechanism, wherein the extruding roller comprises a first roller body and a second roller body which are arranged at intervals around the center of the forming cold cylinder, and the radian formed by the positions of the first roller body and the second roller body on the circumferential surface of the forming cold cylinder is pi/6-3 pi/4; the first roller body and the second roller body respectively form a first extrusion area and a second extrusion area with the forming cold cylinder, and the distance between the first roller body and the second roller body and the forming cold cylinder is adjustable, and the method comprises the following steps:
1) Attaching a bottom isolation film to the forming cooling cylinder and sequentially passing through the first extrusion area and the second extrusion area to form a bottom layer of the coiled material;
2) Adjusting the spacing between the first roller body and the forming cooling cylinder and the second roller body, thereby adjusting the thickness of the lower modified asphalt and the upper modified asphalt and simultaneously meeting the requirement of the whole thickness of the final coiled material;
3) Conveying the tire body to a first extrusion area by a first roller body, unloading the lower modified asphalt to a position between a bottom isolating film and the tire body in the first extrusion area, extruding the bottom isolating film, the lower modified asphalt and the tire body positioned in the first extrusion area into a semi-finished product by the first roller body and a forming cooling cylinder under the cooling of a cooling unit, and conveying the semi-finished product to a second extrusion area;
4) And conveying the surface isolation film to the second extrusion area by the second roller body, unloading the upper modified asphalt between the surface isolation film and the semi-finished product in the second extrusion area, and extruding the semi-finished product, the upper modified asphalt and the surface isolation film in the second extrusion area into finished products by the second roller body and the forming cooling cylinder under the cooling of the cooling unit to finish the forming of the modified asphalt waterproof coiled material.
2. The process for forming a modified asphalt waterproof coiled material with a polyolefin material as a matrix according to claim 1, wherein the radian formed by the positions of the first roller body and the second roller body on the circumferential surface of the forming cold cylinder is pi/4-pi/2; and/or the outer diameter of the first roller body and the second roller body is 1/8-1/2 of the outer diameter of the forming cold cylinder.
3. The process for forming a modified asphalt waterproof roll using a polyolefin material as a matrix according to claim 1, wherein the semi-finished product is attached to the forming cylinder from the bottom isolating film when the first extruding area is conveyed to the second extruding area after the first extruding area completes the extrusion, wherein the first roller body and the forming cylinder extrude the bottom isolating film, the lower modified asphalt and the matrix positioned in the first extruding area into the semi-finished product, and convey the semi-finished product to the second extruding area.
4. The process for forming a modified asphalt waterproof roll using a polyolefin material as a matrix according to claim 1, wherein a surface isolation film unwound from the surface isolation film unwinding mechanism is attached to the second roll body, the upper modified asphalt is unloaded into a second extrusion area and is positioned between a semi-finished product and the surface isolation film, and the forming of the modified asphalt waterproof roll is completed under the extrusion of the second roll body and the forming cooling cylinder.
5. The process for forming a modified asphalt waterproof roll using a polyolefin material as a matrix according to claim 1, wherein the process comprises the following steps: the cooling unit comprises cooling components which are respectively positioned in the forming cooling cylinder, the first roller body and the second roller body.
6. The process for forming a modified asphalt waterproof roll using a polyolefin material as a matrix according to claim 5, wherein: the cooling unit also comprises a spraying component for directly spraying cooling medium to the forming cooling cylinder and the second roller body respectively, and the surface layer isolating film and the bottom layer isolating film prevent the cooling medium from being sprayed to the first extrusion area and the second extrusion area respectively.
7. The process for forming a modified asphalt waterproof roll using a polyolefin material as a matrix according to claim 1, wherein the process comprises the following steps: the radian formed by attaching the formed coiled material to the circumferential surface of the forming cooling cylinder is pi/6-pi; and/or the external diameter of the molding cold cylinder is 1000-3000 mm.
8. The process for forming a modified asphalt waterproof roll using a polyolefin material as a matrix according to claim 1, wherein the process comprises the following steps: the lower modified asphalt and the upper modified asphalt are respectively unloaded to the first extrusion area and the second extrusion area in a pumping or self-flowing mode.
9. The process for forming a modified asphalt waterproof roll using a polyolefin material as a matrix according to claim 1, wherein the process comprises the following steps: the structure of the modified asphalt waterproof coiled material comprises a carcass positioned in the middle, modified asphalt positioned on the upper surface and the lower surface of the carcass, a surface isolation film and a bottom isolation film positioned on the upper surface of the upper modified asphalt and the bottom surface of the lower modified asphalt.
10. The process for forming a modified asphalt waterproof roll using a polyolefin material as a matrix according to any one of claims 1 to 9, wherein: the forming equipment further comprises a guide roller which is arranged below the forming cooling cylinder, so that the formed coiled material is attached to the forming cooling cylinder from the bottom isolation film and guides the coiled material to a required position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311127784.XA CN117400525A (en) | 2017-10-26 | 2017-10-26 | Process for forming modified asphalt waterproof coiled material with polyolefin material as matrix |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311127784.XA CN117400525A (en) | 2017-10-26 | 2017-10-26 | Process for forming modified asphalt waterproof coiled material with polyolefin material as matrix |
| CN201711013038.2A CN107933045B (en) | 2017-10-26 | 2017-10-26 | Modified asphalt waterproof coiled material forming equipment and method with polyolefin material as matrix |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711013038.2A Division CN107933045B (en) | 2017-10-26 | 2017-10-26 | Modified asphalt waterproof coiled material forming equipment and method with polyolefin material as matrix |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117400525A true CN117400525A (en) | 2024-01-16 |
Family
ID=61936555
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711013038.2A Active CN107933045B (en) | 2017-10-26 | 2017-10-26 | Modified asphalt waterproof coiled material forming equipment and method with polyolefin material as matrix |
| CN202311127784.XA Pending CN117400525A (en) | 2017-10-26 | 2017-10-26 | Process for forming modified asphalt waterproof coiled material with polyolefin material as matrix |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711013038.2A Active CN107933045B (en) | 2017-10-26 | 2017-10-26 | Modified asphalt waterproof coiled material forming equipment and method with polyolefin material as matrix |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN107933045B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112827760B (en) * | 2020-12-26 | 2022-03-29 | 安徽酉阳防水科技有限公司 | Coiled material forming equipment with middle carcass |
| CN112694848B (en) * | 2021-01-13 | 2022-09-27 | 武汉东方胜强防水工程有限公司 | Synthetic polymer waterproof roll and production method thereof |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201172299Y (en) * | 2008-01-04 | 2008-12-31 | 中国化学建筑材料公司苏州防水材料研究设计所 | Equipment for making modified asphalt waterproof coil material by non-tyre thermal construction |
| CN102991073B (en) * | 2012-12-17 | 2016-01-13 | 广西金雨伞防水装饰有限公司 | Polyolefin composite modified asphalt wet paving waterproof roll and production method thereof |
| CN203019799U (en) * | 2013-01-03 | 2013-06-26 | 云南海燕建设有限公司 | Once forming production device for high polymer reaction self-adhesive waterproof roll |
| CN103174265A (en) * | 2013-03-05 | 2013-06-26 | 北京立高科技股份有限公司 | Combined modified-asphalt root penetration resistance waterproof roll and preparation method thereof |
| CN205044273U (en) * | 2015-08-21 | 2016-02-24 | 湖北永阳材料股份有限公司 | Polymer autohension waterproofing membrane's roller forming device |
| WO2017066990A1 (en) * | 2015-10-23 | 2017-04-27 | 北京东方雨虹防水技术股份有限公司 | Single-layer roof waterproof coiled material and preparation method therefor |
| CN206351575U (en) * | 2016-12-01 | 2017-07-25 | 昆山科顺防水材料有限公司 | Modified asphalt waterproof coiled material shaped device |
| CN207403317U (en) * | 2017-10-26 | 2018-05-25 | 中国建筑材料科学研究总院苏州防水研究院 | Using polyolefine material as carcass or the modified asphalt waterproof coiled material former on surface layer |
-
2017
- 2017-10-26 CN CN201711013038.2A patent/CN107933045B/en active Active
- 2017-10-26 CN CN202311127784.XA patent/CN117400525A/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| CN107933045B (en) | 2023-09-29 |
| CN107933045A (en) | 2018-04-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10962147B2 (en) | Methods for manufacturing metal-resin composite pipe that can be easily wound into ring shape | |
| CN107933045B (en) | Modified asphalt waterproof coiled material forming equipment and method with polyolefin material as matrix | |
| WO2018133188A1 (en) | Composite floor and manufacturing method thereof | |
| US9005500B2 (en) | Method of manufacturing film for film capacitor and film for film capacitor | |
| KR102496140B1 (en) | Coextrusion apparatus, monolayer extrusion apparatus, retrofitting kit, and process for measuring layer thickness, for manufacturing plastic film and for retrofitting extrusion apparatus | |
| TW200619054A (en) | Method and apparatus for manufacturing layered articles made of elastomeric material | |
| CN106379027A (en) | Special equipment for production of steel-plastic composite wallboard and technology thereof | |
| US10220551B2 (en) | Thermally insulated corrugated conduit | |
| CN108083657B (en) | Hollow glass and production process thereof | |
| KR101426779B1 (en) | Apparatus and a method for manufacturing of plastic greenhouse film | |
| CN215612725U (en) | Plastic extrusion sheet is with top layer spraying device | |
| CN114607843A (en) | Reinforced wear-resistant PE water supply pipe and preparation method thereof | |
| CN213441607U (en) | Plate production line | |
| CN213322169U (en) | Plate production line | |
| KR101655084B1 (en) | Sequential extruding type multilayer concrete panel manufacturing apparatus | |
| CN204076860U (en) | A kind of bull extruding machine of polyethylene spirally enwound structure-wall pipe | |
| KR20130050837A (en) | Flexible second gas barrier and method for fabricating the same | |
| CN207403317U (en) | Using polyolefine material as carcass or the modified asphalt waterproof coiled material former on surface layer | |
| CN217671201U (en) | ABA type floor production facility | |
| CN107866953A (en) | A kind of sebific duct extrusion molding apparatus with multilayer kinking | |
| CN205660978U (en) | Compression molding machine | |
| CN218462955U (en) | Plane air suspension film laminating device | |
| CN213082431U (en) | Plate production line | |
| CN104228091B (en) | A kind of extrusion set composite and method of work thereof | |
| CN210791980U (en) | Rubber tube production system with detection and identification lines |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |