CN111186714A - Tension control method for asphalt waterproof coiled material production line - Google Patents
Tension control method for asphalt waterproof coiled material production line Download PDFInfo
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- CN111186714A CN111186714A CN201911366927.6A CN201911366927A CN111186714A CN 111186714 A CN111186714 A CN 111186714A CN 201911366927 A CN201911366927 A CN 201911366927A CN 111186714 A CN111186714 A CN 111186714A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H23/00—Registering, tensioning, smoothing or guiding webs
- B65H23/04—Registering, tensioning, smoothing or guiding webs longitudinally
- B65H23/16—Registering, tensioning, smoothing or guiding webs longitudinally by weighted or spring-pressed movable bars or rollers
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Abstract
The invention relates to the technical field of asphalt waterproof coiled material production equipment, and discloses a tension control method for an asphalt waterproof coiled material production line. In each process, the base/coiled material passing through each process is respectively pulled through the independent driving mechanism, so that the base/coiled material is effectively prevented from being pulled mutually among different processes, the possibility of stretching the base/coiled material is reduced, and the shrinkage deformation is effectively reduced; the independent driving mechanism used in each process can ensure the running speed of the base/coiled material in each process, thereby improving the synchronization rate of each process in the production line.
Description
Technical Field
The invention relates to the technical field of asphalt waterproof coiled material production equipment, in particular to a tension control method for an asphalt waterproof coiled material production line.
Background
The asphalt waterproof coiled material is a coiled material made of asphalt material, base material and surface spreading anti-sticking material, also called asphalt felt, and is commonly used for a pasting type waterproof layer. The asphalt waterproof coiled material comprises a filled coiled material and a non-filled coiled material. The roll-shaped material is made by impregnating base materials such as thick paper or glass fiber cloth, asbestos cloth, cotton and linen fabrics and the like with petroleum asphalt and is called as a base coiled material; asbestos, rubber powder, etc. are mixed into asphalt material, and the rolled material is called rolled coiled material, i.e. tubeless coiled material.
The modified asphalt waterproof coiled material is commonly called modified asphalt felt, and is a curlable sheet-like waterproof material which is prepared by taking a glass fiber felt, a polyester felt, a jute cloth, a polyethylene film, a polyester non-woven fabric, a metal foil or two composite materials as a base, taking synthetic high molecular polymer modified asphalt and oxidized asphalt with the mixing amount of not less than 10% as dip-coating materials and taking powder, sheet and granular mineral materials, synthetic high molecular films and metal films as covering materials. Due to inherent disadvantages of low softening point, high penetration and low temperature brittleness of asphalt itself, the application range of the asphalt is limited when the asphalt is used as a waterproof material. After the asphalt is modified by adding the high molecular polymer, the performances are greatly improved, the weather resistance, the temperature sensitivity (high-temperature characteristic and low-temperature flexibility) and the adaptability to substrate cracking are obviously improved, and the waterproof material prepared by using the modified asphalt is realistic and possible from the traditional 'heavy, thick, long and big' era to the 'light, thin, short and small' industrialized era.
The production process of the waterproof roll material is to dip-coat asphalt on base fabric of non-woven fabric and other base fabric, extrude the base fabric to tamp asphalt on the base fabric to form semi-finished roll material, then sand or film and emboss to form finished roll material, and finally wind. The tire base cloth has a certain elastic deformation space, once pulled, the tire base cloth can shrink and deform, and stress is formed after asphalt is coated; particularly, when and after asphalt is coated, because the asphalt has certain viscosity, a larger acting force is generated between the base coated with the asphalt and the extrusion mechanism due to the adhesion effect, so that the base and the asphalt layer are contracted and deformed to a greater extent, stress is generated, the width of a coiled material is reduced, and more importantly, the low synchronization rate of the existing production line is often caused.
Disclosure of Invention
In view of this, the present invention provides a tension control method for an asphalt waterproof roll production line, which solves the technical problems of low linear synchronization rate and high tire base or roll shrinkage rate of asphalt rolls, in order to overcome at least one of the disadvantages of the prior art.
In order to solve the technical problems, the invention adopts the following technical scheme:
a tension control method for an asphalt waterproof coiled material production line at least comprises a tire base drying process, an asphalt pre-soaking process, a post-pre-soaking drying process, an asphalt coating process, a film covering and/or sanding process and a coiled material winding process which are sequentially carried out, wherein each process adopts an independent driving mechanism to pull the tire base/the coiled material.
The invention provides a tension control method for an asphalt waterproof coiled material production line, wherein a base/coiled material passing through each process is respectively pulled by an independent driving mechanism, so that the base/coiled material is effectively prevented from being pulled mutually among different processes, the possibility of stretching the base/coiled material is reduced, and the shrinkage deformation is effectively reduced; the independent driving mechanism used in each process can ensure the running speed of the base/coiled material in each process, thereby improving the synchronization rate of each process in the production line.
Because the asphalt has viscosity, the coiled material coated with the asphalt also has viscosity, huge adhesion force is generated between the coiled material and working mechanisms which are in direct contact with the asphalt pre-soaking process, the pre-soaking post-drying process, the asphalt coating process, the film covering process and/or the sanding process, and particularly in the process of adopting high-temperature extrusion, the adhesion force is sharply increased, so that large deformation and shrinkage are caused. The traction speed of the tire base drying process, the asphalt pre-soaking process, the post-pre-soaking drying process, the asphalt coating process, the film covering and/or sanding process and the coiled material winding process is based on the traction speed of the asphalt coating process. The asphalt coating process, the asphalt pre-dipping process and the post-dipping drying process which are performed before the asphalt coating process are referred to as the first half of the production line, and the coating and/or sanding process and the coil winding process which are performed after the asphalt coating process are referred to as the second half of the production line; the first half section is a preparation and proceeding stage of coating asphalt, which is a stage of forming the most serious tension on the base/coiled material, in particular to an asphalt coating process, wherein the tension on the coiled material reaches the maximum in the whole production line, the traction speed of the production line in the invention is mainly the asphalt coating process, and is assisted by a base drying process, an asphalt presoaking process, a presoaking post-drying process, a film covering and/or sanding process and a coiled material rolling process, so that the difficulty of tension control is greatly reduced, the synchronization rate of each process in the production line is further improved, and the production synchronization rate can reach 99.7 percent
Specifically, when the base/coiled material in the production line is stretched or piled up, the pulling speed of the base drying process, the asphalt pre-dipping process, the post-dipping drying process, the film covering and/or sanding process and the coiled material winding process is adjusted by taking the pulling speed of the asphalt coating process as a reference. And the traction speed of the tire base drying procedure, the asphalt pre-soaking procedure, the post-pre-soaking drying procedure, the film covering and/or sanding procedure and the coiled material winding procedure is controlled in a correlation manner with the traction speed of the asphalt coating procedure.
The asphalt pre-dipping process is to coat asphalt on the surface of the base or dip the base into the asphalt so that the asphalt covers the surface of the base, and then squeeze the base with the asphalt on the surface in a direction forming an acute angle with the vertical direction by using a pair of squeeze rollers, wherein one squeeze roller is driven by a driving mechanism to drag the coiled material independently. The asphalt pre-dipping process in the invention abandons the mode of extruding the base in the vertical direction in the traditional process, namely the mode of extruding the base with the asphalt coated on the surface in the direction forming an acute angle with the vertical direction, namely the extruding acting force is in an inclined state, so that the part of the extruded base near the extruding acting point/line/surface is also in an inclined state, the position relation of the base at the two sides of the extruding acting point/line/surface is in a side-to-side relation, the asphalt extruded and running to the two sides can be newly received by the base without being adhered to equipment for extruding, thereby avoiding the defects of air bubbles, surface white spots, poor water impermeability, low peeling strength and the like of a finished product and avoiding the tension on the base/coiled material generated by the defects.
In the asphalt pre-dipping procedure, two pairs of extrusion rollers are used for extruding the base coated with asphalt on the surface twice in the direction forming an acute angle with the vertical direction, the directions of the front and back surfaces of the base are opposite in the two extrusion processes, wherein one extrusion roller in each pair of extrusion rollers is driven by a driving mechanism to draw the coiled material independently. The directions of the front and back surfaces of the base are opposite in the two extrusion processes, so that the front and back surfaces of the coiled material or the pre-impregnated coiled material obtained after extrusion are stressed evenly, are not easy to warp, and have smoother surfaces. As mentioned above, the pressing force is inclined, and the portion of the pressed base near the pressing point/line/surface is also inclined, so that the front and back surfaces of the base are necessarily inclined one surface upward and the other surface downward, and therefore the opposite orientation is not an absolute opposite relationship, but it should be understood that: if the base front face is inclined upward in the first extrusion, it is inclined downward in the second extrusion; and vice versa.
The post-presoaking drying procedure is to dry the coiled material presoaked with the asphalt in a mode of contacting with a rolling heating element, and the rolling heating element is driven by a driving mechanism to form traction on the coiled material. The traditional space drying mode is abandoned in the drying process after the pre-soaking, and the contact type drying is adopted, so that the drying effect is greatly improved. However, the contact type drying can generate very large adhesion force between the coiled material and the rolling heating element, if the rolling heating element does not have the capability of active rolling, the coiled material is pulled by other processes or traction force of a traction mechanism, and the rolling heating element rolls passively under the action of the coiled material, so that very large tension can be generated on the coiled material, and the coiled material is stretched to generate large shrinkage deformation.
In the drying process after pre-dipping, two rolling heating bodies arranged at a distance dry the coiled material pre-dipped with asphalt, and each rolling heating body is driven by a driving mechanism to draw the coiled material independently, so that the coiled material is not stretched and deformed even under the condition of greatly improving the viscosity at high temperature, on one hand, the two rolling heating bodies are prevented from forming a pulling effect on the coiled material between the two rolling heating bodies, on the other hand, a tension buffer area is provided for the coiled material before and after drying in the drying stage after pre-dipping, and therefore the coiled material is effectively prevented from being continuously stretched and deformed in the production process.
The asphalt coating process is to coat asphalt on the surface of the pre-soaked coiled material or immerse the pre-soaked coiled material in the asphalt so that the asphalt covers the surface of the pre-soaked coiled material, then use a high-speed rolling heating element to carry out rough pressing and then use a low-speed rolling heating element to carry out fine pressing, wherein the high-speed rolling heating element and the low-speed rolling heating element are respectively and independently driven by a driving mechanism to form traction on the coiled material. The asphalt coating process improves the extrusion mode, and the compactness and uniformity of extrusion are improved by combining the two processes of rough pressing and fine pressing; the drying after the presoaking idea is continued in the same way, the high-speed rolling heating element and the low-speed rolling heating element are respectively driven by a driving mechanism to draw the coiled material independently, even if the viscosity is greatly improved at high temperature, the coiled material cannot be stretched and deformed, on one hand, the high-speed rolling heating element and the low-speed rolling heating element are prevented from forming a pulling effect on the coiled material between the high-speed rolling heating element and the low-speed rolling heating element, on the other hand, a tension buffer area is equivalently provided for the coiled material before rough pressing and after fine pressing in the extrusion stage, and therefore the waterproof coiled material is effectively prevented from being continuously stretched and deformed in the production process.
In the tire base drying procedure, the tire base is dried in a mode of heating dead heat transfer oil through live heat transfer oil and drying the tire base through dead heat transfer oil, and then the tire base is transferred through a traction mechanism independently driven by a driving mechanism. The live conduction oil refers to constantly replaced conduction oil which can be communicated with the outside, and the dead conduction oil refers to conduction oil which is isolated from the outside and is not replaced under the normal condition. The invention heats the dead heat conduction oil through the active heat conduction oil and the heat conduction action to maintain the temperature of the dead heat conduction oil so that the tire base can be continuously dried, more importantly, the stability of the temperature of the dead heat conduction oil is maintained, and the tire base is prevented from being scalded, wrinkled, deformed and even fired and damaged due to the fact that the drying temperature is instantly raised too high caused by the sudden stop of a production line.
And after the tire base drying procedure and before and after the pre-soaking drying procedure, a bounce buffer mechanism is respectively adopted to buffer and pull the tire base/coiled material. After drying, the base/coiled material is often at a higher temperature and is more easily stretched and deformed, especially the asphalt-coated coiled material is buffered and pulled by a bounce buffer mechanism behind or before the base/coiled material to relieve the tension of the base/coiled material and further reduce the deformation.
The coiled material winding process is characterized by further comprising a coiled material storage process before, wherein traction is continued or suspended between the coiled material storage process and the coiled material winding process through a traction brake mechanism, and the traction brake mechanism is driven by a driving mechanism independently. The coiled material stores the process and is used for storing the coiled material temporarily, prevents on the one hand that the coiled material from piling up, prevents on the one hand that the coiled material from being stretched, has tension cushioning effect, has certain elasticity space, just because the existence in elasticity space, appears a large amount of output phenomena of short-lived coiled material easily during the rolling, can improve the synchronous rate of production line through the regulation of traction brake mechanism.
Compared with the prior art, the invention has the following beneficial effects: the invention provides a tension control method for an asphalt waterproof coiled material production line, wherein a base/coiled material passing through each process is respectively pulled by an independent driving mechanism, so that the base/coiled material is effectively prevented from being pulled mutually among different processes, the possibility of stretching the base/coiled material is reduced, and the shrinkage deformation is effectively reduced; the independent driving mechanism used in each process can ensure the running speed of the base/coiled material in each process, thereby improving the synchronization rate of each process in the production line.
Drawings
FIG. 1 is a first schematic extrusion of an asphalt pre-soak process.
Fig. 2 is a schematic view of an extrusion mechanism of the asphalt pre-dipping process shown in fig. 1.
FIG. 3 is a second schematic extrusion of the asphalt pre-soak process.
Fig. 4 is a schematic view of the pressing mechanism of the asphalt pre-dipping process shown in fig. 3.
Fig. 5 is a schematic mechanism diagram of the post-prepreg drying process.
Fig. 6 is a schematic mechanism diagram of the asphalt coating process.
Description of reference numerals: a base/web A, a squeeze roller 210, a rolling heat-generating body 310, a high-speed rolling heat-generating body 410, and a low-speed rolling heat-generating body 420.
Detailed Description
The drawings are for illustration purposes only and are not to be construed as limiting the invention; for the purpose of better illustrating the embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted; the positional relationships depicted in the drawings are for illustrative purposes only and are not to be construed as limiting the invention. The present invention will be described in further detail with reference to specific examples.
A tension control method for an asphalt waterproof coiled material production line at least comprises a tire base drying process, an asphalt pre-soaking process, a post-pre-soaking drying process, an asphalt coating process, a film covering and/or sanding process and a coiled material winding process which are sequentially carried out, wherein each process adopts an independent driving mechanism to pull the tire base/the coiled material.
The embodiment provides a tension control method for an asphalt waterproof coiled material production line, wherein in each process, a base/coiled material passing through each process is respectively pulled through an independent driving mechanism, so that the base/coiled material is effectively prevented from being pulled mutually among different processes, the possibility of stretching the base/coiled material is reduced, and the shrinkage deformation is effectively reduced; the independent driving mechanism used in each process can ensure the running speed of the base/coiled material in each process, thereby improving the synchronization rate of each process in the production line.
Because the asphalt has viscosity, the coiled material coated with the asphalt also has viscosity, huge adhesion force is generated between the coiled material and working mechanisms which are in direct contact with the asphalt pre-soaking process, the pre-soaking post-drying process, the asphalt coating process, the film covering process and/or the sanding process, and particularly in the process of adopting high-temperature extrusion, the adhesion force is sharply increased, so that large deformation and shrinkage are caused. The traction speed of the tire base drying process, the asphalt pre-soaking process, the post-pre-soaking drying process, the asphalt coating process, the film covering and/or sanding process and the coiled material winding process is based on the traction speed of the asphalt coating process. The asphalt coating process, the asphalt pre-dipping process and the post-dipping drying process which are performed before the asphalt coating process are referred to as the first half of the production line, and the coating and/or sanding process and the coil winding process which are performed after the asphalt coating process are referred to as the second half of the production line; the first half is the preparation and proceeding stage of coating asphalt, which is the stage of forming the most serious tension on the base/coiled material, especially the asphalt coating process, the tension on the coiled material reaches the maximum in the whole production line, in this embodiment, the traction speed of the production line is mainly the asphalt coating process, and is assisted by the base drying process, the asphalt pre-dipping process, the post-dipping drying process, the film covering and/or sanding process and the coiled material rolling process, thereby greatly reducing the difficulty of tension control, further improving the synchronization rate of each process in the production line, and enabling the production synchronization rate to reach 99.7 percent
Specifically, when the base/coiled material in the production line is stretched or piled up, the pulling speed of the base drying process, the asphalt pre-dipping process, the post-dipping drying process, the film covering and/or sanding process and the coiled material winding process is adjusted by taking the pulling speed of the asphalt coating process as a reference. And the traction speed of the tire base drying procedure, the asphalt pre-soaking procedure, the post-pre-soaking drying procedure, the film covering and/or sanding procedure and the coiled material winding procedure is controlled in a correlation manner with the traction speed of the asphalt coating procedure.
As shown in fig. 1 to 2, the asphalt pre-dipping process is to coat asphalt on the surface of the base or dip the base into asphalt so that the asphalt covers the surface of the base, and then to squeeze the base coated with asphalt in a direction forming an acute angle with the vertical direction by a pair of squeeze rollers 210210, wherein a single squeeze roller 210 is driven by a driving mechanism alone to draw the web. In the asphalt pre-dipping procedure in the embodiment, the mode of extruding the base in the vertical direction, namely the mode of parallel extrusion acting force and the vertical direction in the traditional process is abandoned, the mode of extruding the base with the asphalt coated on the surface in the direction forming an acute angle with the vertical direction is creatively provided, namely, the extrusion force is inclined, so that the portion of the extruded base near the extrusion point/line/surface is also inclined, the base on both sides of the extrusion point/line/surface is in a side-up and side-down relationship in the positional relationship, the asphalt extruded to run to both sides can be received by the base again without adhering to the extrusion equipment, thereby avoiding the defects of air bubbles, surface white spots, poor water impermeability, low peeling strength and the like of the finished product and avoiding the tension on the base/coiled material caused by the defects.
In the asphalt pre-dipping process, as shown in fig. 3-4, two pairs of pressing rollers 210 are used to press the asphalt-coated base twice in a direction forming an acute angle with the vertical direction, and the front and back surfaces of the base are in opposite directions in the two pressing processes, wherein one pressing roller 210 of each pair of pressing rollers 210 is driven by a driving mechanism to draw the web. The directions of the front and back surfaces of the base are opposite in the two extrusion processes, so that the front and back surfaces of the coiled material or the pre-impregnated coiled material obtained after extrusion are stressed evenly, are not easy to warp, and have smoother surfaces. As mentioned above, the pressing force is inclined, and the portion of the pressed base near the pressing point/line/surface is also inclined, so that the front and back surfaces of the base are necessarily inclined one surface upward and the other surface downward, and therefore the opposite orientation is not an absolute opposite relationship, but it should be understood that: if the base front face is inclined upward in the first extrusion, it is inclined downward in the second extrusion; and vice versa.
The post-presoaking drying step is to dry the coil presoaked with the asphalt in a manner of contacting the rolling heat-generating body 310, and the rolling heat-generating body 310 is driven by a driving mechanism alone to form traction on the coil. The traditional space drying mode is abandoned in the drying process after the pre-soaking, and the contact type drying is adopted, so that the drying effect is greatly improved. However, if the rolling heating element 310 does not have the capability of active rolling, the rolling heating element 310 is pulled by the traction force of other processes or a traction mechanism, and the rolling heating element 310 rolls passively under the action of the rolling material, so that a very large tension is generated on the rolling material, and the rolling material is stretched to generate a large shrinkage deformation.
As shown in fig. 5, in the post-prepreg drying process, two rolling heating elements 310 arranged at a distance dry the coil prepreg with asphalt, and each rolling heating element 310 is driven by a driving mechanism to draw the coil, so that the coil is not stretched and deformed even if the viscosity is greatly increased at high temperature, on one hand, the phenomenon that the two rolling heating elements 310 pull the coil positioned between the two rolling heating elements is avoided, and on the other hand, a tension buffer area is provided for the coil before and after drying in the post-prepreg drying stage, so that the coil is effectively prevented from being continuously stretched and deformed in the production process.
As shown in fig. 6, the asphalt coating step is to coat asphalt on the surface of the pre-impregnated coil or dip the pre-impregnated coil in asphalt so that the asphalt covers the surface of the pre-impregnated coil, then roughly press the coil with the high-speed rolling heater 410 and then finish press the coil with the low-speed rolling heater 420, and the high-speed rolling heater 410 and the low-speed rolling heater 420 are driven by a driving mechanism to draw the coil. The asphalt coating process improves the extrusion mode, and the compactness and uniformity of extrusion are improved by combining the two processes of rough pressing and fine pressing; similarly, the concept of drying after pre-dipping is continued, the high-speed rolling heating element 410 and the low-speed rolling heating element 420 are respectively driven by a driving mechanism to draw the coiled material independently, even if the viscosity is greatly improved at high temperature, the coiled material cannot be stretched and deformed, on one hand, the high-speed rolling heating element 410 and the low-speed rolling heating element 420 are prevented from drawing the coiled material between the high-speed rolling heating element and the low-speed rolling heating element, on the other hand, a tension buffer area is equivalently provided for the coiled material before rough pressing and after fine pressing in the extrusion stage, and therefore the waterproof coiled material is effectively prevented from being continuously stretched and deformed in the production process.
In the tire base drying procedure, the tire base is dried in a mode of heating dead heat transfer oil through live heat transfer oil and drying the tire base through dead heat transfer oil, and then the tire base is transferred through a traction mechanism independently driven by a driving mechanism. The live conduction oil refers to constantly replaced conduction oil which can be communicated with the outside, and the dead conduction oil refers to conduction oil which is isolated from the outside and is not replaced under the normal condition. The embodiment heats the dead heat conduction oil through the live heat conduction oil and the heat conduction effect so as to maintain the temperature of the dead heat conduction oil, so that the tire base can be continuously dried, more importantly, the stability of the temperature of the dead heat conduction oil is maintained, and the tire base is prevented from being damaged by being scalded, wrinkled, deformed and even ignited due to the fact that the drying temperature is instantly raised too high when the production line is suddenly stopped.
And after the tire base drying procedure and before and after the pre-soaking drying procedure, a bounce buffer mechanism is respectively adopted to buffer and pull the tire base/coiled material. After drying, the base/coiled material is often at a higher temperature and is more easily stretched and deformed, especially the asphalt-coated coiled material is buffered and pulled by a bounce buffer mechanism behind or before the base/coiled material to relieve the tension of the base/coiled material and further reduce the deformation.
The coiled material winding process is characterized by further comprising a coiled material storage process before, wherein traction is continued or suspended between the coiled material storage process and the coiled material winding process through a traction brake mechanism, and the traction brake mechanism is driven by a driving mechanism independently. The coiled material stores the process and is used for storing the coiled material temporarily, prevents on the one hand that the coiled material from piling up, prevents on the one hand that the coiled material from being stretched, has tension cushioning effect, has certain elasticity space, just because the existence in elasticity space, appears a large amount of output phenomena of short-lived coiled material easily during the rolling, can improve the synchronous rate of production line through the regulation of traction brake mechanism.
It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (10)
1. The tension control method for the asphalt waterproof coiled material production line is characterized in that the production line at least comprises a tire base drying process, an asphalt pre-soaking process, a post-pre-soaking drying process, an asphalt coating process, a film covering and/or sanding process and a coiled material winding process which are sequentially carried out, and each process adopts an independent driving mechanism to pull the tire base/coiled material.
2. The tension control method for the asphalt waterproof coiled material production line according to claim 1, wherein the tire base drying process, the asphalt pre-dipping process, the post-dipping drying process, the asphalt coating process, the film covering and/or sanding process and the coiled material winding process respectively have a traction speed, and the traction speeds of the tire base drying process, the asphalt pre-dipping process, the post-dipping drying process, the film covering and/or sanding process and the coiled material winding process are all based on the traction speed of the asphalt coating process.
3. The tension control method for asphalt waterproof roll production line according to claim 2, characterized in that when the base/roll in the production line is stretched or piled up, the pulling speed of the base drying process, the asphalt pre-dipping process, the post-dipping drying process, the coating and/or sanding process and the roll winding process is adjusted based on the pulling speed of the asphalt coating process.
4. The tension control method for asphalt waterproof coiled material production line according to claim 2, characterized in that the traction speed of the base drying process, the asphalt pre-soaking process, the post-pre-soaking drying process, the laminating and/or sanding process and the coiled material winding process is controlled in association with the traction speed of the asphalt coating process.
5. The tension control method for asphalt waterproof roll production line according to claims 1 to 4, wherein the asphalt pre-dipping process is to coat asphalt on the surface of the base or dip the base into the asphalt so that the asphalt covers the surface of the base, and then squeeze the base coated with the asphalt in a direction forming an acute angle with the vertical direction by using a pair of squeeze rollers, wherein one of the squeeze rollers is driven by a driving mechanism to drag the roll.
6. The tension control method for asphalt waterproof roll production line according to claim 5, characterized in that in the asphalt pre-dipping process, the asphalt-coated base is twice extruded in a direction forming an acute angle with the vertical direction by two pairs of extrusion rollers, the front and back surfaces of the base are in opposite directions in the twice extrusion process, wherein one extrusion roller in each pair of extrusion rollers is driven by a driving mechanism to draw the roll.
7. The tension control method for asphalt waterproof roll production line according to claims 1 to 4, wherein the post-presoaking drying step is to dry the asphalt-presoaked roll by contacting with a rolling heater which is driven by a driving mechanism alone to draw the roll.
8. The method for controlling the tension of the asphalt waterproof coiled material production line according to claims 1 to 4, wherein the asphalt coating step is to coat asphalt on the surface of the pre-soaked coiled material or dip the pre-soaked coiled material into the asphalt so that the asphalt covers the surface of the pre-soaked coiled material, then to perform rough pressing by using a high-speed rolling heating element and then to perform fine pressing by using a low-speed rolling heating element, and the high-speed rolling heating element and the low-speed rolling heating element are respectively and independently driven by a driving mechanism to form traction on the coiled material.
9. The tension control method for the asphalt waterproof coiled material production line according to any one of claims 1 to 4, wherein after the tire base drying process and before and after the pre-dipping drying process, a bounce buffer mechanism is respectively adopted to buffer and pull the tire base/coiled material.
10. The tension control method for the asphalt waterproof coiled material production line according to any one of claims 1 to 4, wherein a coiled material storage process is further included before the coiled material winding process, traction is continued or suspended between the coiled material storage process and the coiled material winding process through a traction brake mechanism, and the traction brake mechanism is independently driven by a driving mechanism.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114249163A (en) * | 2022-01-08 | 2022-03-29 | 上海豫宏建筑防水工程有限公司 | Tension transformation system of waterproof coiled material production line |
| CN116141664A (en) * | 2022-12-01 | 2023-05-23 | 四川金星包装印务股份有限公司 | Preparation method of anti-warping composite film and composite film |
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| CN116141664A (en) * | 2022-12-01 | 2023-05-23 | 四川金星包装印务股份有限公司 | Preparation method of anti-warping composite film and composite film |
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