CN114248514A - Cold-bonding PVDF wrapping belt for bridge cable protection and preparation process thereof - Google Patents
Cold-bonding PVDF wrapping belt for bridge cable protection and preparation process thereof Download PDFInfo
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- CN114248514A CN114248514A CN202111591831.7A CN202111591831A CN114248514A CN 114248514 A CN114248514 A CN 114248514A CN 202111591831 A CN202111591831 A CN 202111591831A CN 114248514 A CN114248514 A CN 114248514A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B33/00—Layered products characterised by particular properties or particular surface features, e.g. particular surface coatings; Layered products designed for particular purposes not covered by another single class
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/12—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
- B32B37/1284—Application of adhesive
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B38/00—Ancillary operations in connection with laminating processes
- B32B38/16—Drying; Softening; Cleaning
- B32B38/164—Drying
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
- B32B7/04—Interconnection of layers
- B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/16—Suspension cables; Cable clamps for suspension cables ; Pre- or post-stressed cables
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B38/00—Ancillary operations in connection with laminating processes
- B32B38/16—Drying; Softening; Cleaning
- B32B38/164—Drying
- B32B2038/166—Removing moisture
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/30—Properties of the layers or laminate having particular thermal properties
- B32B2307/306—Resistant to heat
Abstract
The invention discloses a cold-bonding PVDF wrapping belt for protecting a bridge cable and a preparation process thereof, wherein the wrapping belt comprises a fluorine-containing weather-resistant film layer, a glue layer, a PET film layer, a high-performance sealing glue layer and an isolation film layer, the glue layer is arranged between the fluorine-containing weather-resistant film layer and the PET film layer, and the high-performance sealing glue layer is arranged between the PET film layer and the isolation film layer, so that the performance of the wrapping belt is improved; the preparation process comprises the following steps: unreeling, gluing, drying, compounding, reeling, unreeling, gluing, laminating and reeling. The preparation process combines the fluorine-containing weather-resistant film layer and the PET film layer in a compounding manner, so that the surface layer material has excellent aging resistance, corrosion resistance and barrier property, and the butyl glue layer is coated to combine the aging resistance, corrosion resistance and barrier property of the surface layer material with the air tightness and water tightness of the high-performance sealant, so that the advantages of the surface layer material and the high-performance sealant are fully exerted, and the purposes of durability and water resistance are achieved.
Description
Technical Field
The invention relates to a cold-bonding PVDF wrapping belt for protecting a bridge cable and a preparation process thereof.
Background
The cable is one of the most important stressed members of a suspension bridge, called the "lifeline".
The bridge cable bears fatigue load for a long time, is mostly positioned in regions crossing rivers and gulfs, is exposed in environments with wind, rain, moisture and air pollution for a long time, and is easy to suffer from the problems of corrosion, part of cable splitting and the like. At present, the cable protection generally adopts a hot extrusion high density Polyethylene (PE) sheath or an outer sheath PE pipe for protection, and the protection effect is achieved by depending on the special characteristics of good air tightness, water tightness and ultraviolet resistance of PED materials. However, most of the common cables have defects (corrosion of internal steel wires, corrosion of anchor heads and the like) after being used for years due to the phenomenon of air bubbles or uneven thickness of the PE sheath in the production process and the collision, scratch and the like of the PE sheath in the transportation and installation processes.
In order to delay the corrosion of reinforcing steel bars inside a bridge cable and prolong the service life of the cable, most bridges are protected by winding and wrapping common PVF plastic belts, but because whether the overlapping rate of the winding and wrapping belts is reasonable and the stress state of the cable cannot be determined, certain material waste is often caused and the stress deformation condition of the cable in the use process cannot be determined, and once a defect occurs, the cable can be repaired after the cable is obviously damaged. Moreover, the method only considers the characteristics of the PVF plastic belt, and if the PVF plastic belt is damaged, the cable is exposed to the atmosphere, is more prone to damage such as corrosion and the like, and has poor performance.
Disclosure of Invention
The invention aims to provide a cold-bonding PVDF wrapping belt for protecting a bridge cable and a technical scheme of a preparation process thereof aiming at the defects in the prior art, the heat resistance of the wrapping belt is improved, the bonding strength is high, the cold flow permeation is high, the lasting viscosity is more excellent, the aging resistance and the stability are good, the preparation process combines a fluorine-containing weather-resistant film layer and a PET film layer through compounding, so that a surface layer material has excellent aging resistance, corrosion resistance and barrier property, and the aging resistance, corrosion resistance and barrier property of the surface layer material are combined with the air tightness and water tightness of a high-performance sealant through coating a butyl glue layer, so that the advantages of the surface layer material and the sealant are fully exerted, and the durability and the water resistance are realized.
In order to solve the technical problems, the invention adopts the following technical scheme:
the utility model provides a bridge cable protection is with cold type PVDF area of twining which characterized in that: the wrapping belt comprises a fluorine-containing weather-resistant film layer, a glue layer, a PET film layer, a high-performance sealing glue layer and an isolation film layer, the glue layer is arranged between the fluorine-containing weather-resistant film layer and the PET film layer, and the high-performance sealing glue layer is arranged between the PET film layer and the isolation film layer, so that the performance of the wrapping belt is improved; through the design of above-mentioned structure, can improve the heat resistance of wrapping band, adhesive strength is high, and cold flow infiltration holds the viscidity more excellent, and ageing resistance and stability are good.
Furthermore, the glue layer is a polyurethane film layer.
Furthermore, the high-performance sealing adhesive layer is a butyl rubber film layer.
Furthermore, the thickness of the fluorine-containing weather-resistant film layer is 5-100 microns, the thickness of the glue layer is 5-30 microns, the thickness of the PET film layer is 20-250 microns, the thickness of the high-performance sealing glue layer is 150-1000 microns, and the thickness of the surface layer is 10-50 microns.
The preparation process of the cold-bonding PVDF wrapping belt for bridge cable protection is characterized by comprising the following steps:
a. unreeling: putting the fluorine-containing weather-resistant film layer and the PET film layer into a production line for production through a first unreeling device;
b. gluing: coating glue on the surface of a PET film layer by adopting an extrusion type or roller type coating mode, and conveying the PET film layer through a gluing roller;
c. drying: drying the solvent in the glue by using an oven to form a glue layer;
d. compounding: laminating the PET film layer coated with the adhesive layer and the fluorine-containing weather-resistant film layer in a hot pressing mode through a rubber roller and a steel roller, and finishing laminating the PET film layer and the fluorine-containing weather-resistant film layer, wherein the compounding temperature is 30-100 ℃;
e. winding: after the laminating is finished, the obtained surface layer material is rolled up the finished product through a rolling device;
f. unreeling: the surface material layer is discharged through a first unwinding device and enters a production line;
g. gluing: coating the high-performance sealant on the surface of the PET film layer by adopting an extrusion type or roller type coating method, wherein the coating temperature is 120-140 ℃;
h. film covering: covering the isolation film on the surface of the adhesive layer through a film covering roller by a second unwinding device;
i. winding: and after the laminating is finished, obtaining a PVDF wrapping belt, and finishing the wrapping through a wrapping device.
The process combines the fluorine-containing weather-resistant film layer with the PET film layer through compounding, so that the surface layer material has excellent ageing resistance, corrosion resistance and barrier property, combines the ageing resistance, corrosion resistance and barrier property of the surface layer material with the air tightness and water tightness of the high-performance sealant through coating the butyl glue layer, fully exerts the advantages of the ageing resistance, corrosion resistance and barrier property and achieves durable water resistance.
Further, first unwinding device, second unwinding device and coiling mechanism all include box, actuating mechanism, fixture and roller, through bottom plate fixed connection between two boxes, are provided with supporting mechanism between bottom plate and the box, and fixture passes through actuating mechanism and connects the box, is provided with the roller between two fixtures, and it is rotatory to drive fixture through actuating mechanism, can realize the continuous rotation of roller, improves the preparation efficiency who twines the area, reduces the defective percentage.
Furthermore, the supporting mechanism comprises a supporting frame, a supporting block and a supporting wheel, the supporting frame is arranged between the box body and the bottom plate, the supporting wheel is connected with the supporting frame through the supporting block, the supporting frame, the supporting block and the supporting wheel can improve the supporting strength of the driving mechanism, and the stability and the reliability of the clamping mechanism during rotation are improved.
Further, actuating mechanism includes first motor, turning block and sleeve, the output shaft of first motor turning block, and the turning block passes through muffjoint fixture, and the sleeve supports through supporting mechanism, and stability when improving fixture rotation, first motor pass through the turning block and drive the sleeve rotatory, and then can drive fixture rotatory.
Further, the clamping mechanism comprises a rotary table, an air cylinder, a fixed column, a supporting rod, a fixed frame and a movable frame, wherein the air cylinder is arranged on the rotary table, the fixed column is fixedly connected with the rotary table, the inside of the fixed column is hollow, a limit groove is arranged on the fixed column, four first guide grooves are arranged on the rotary table, the end part of the supporting rod is limited on the first guide groove through a sliding block, the fixed frame is connected with a second guide groove on the supporting rod through one end of a connecting rod, the supporting rod is connected with the movable frame through the connecting rod, the fixed frame is fixedly connected with the fixed column through a fixed rod, the movable frame is connected with the air cylinder through a piston rod, the piston rod is driven by the air cylinder to be pushed out and then driven to move the movable frame, the supporting rod is pushed outwards or pulled inwards through the connecting rod, the clamping of the rollers with different sizes is met, the stability and the reliability during unreeling and reeling are improved, the four supporting rods can synchronously move, the reliability of the clamping is improved, the design of the first guide grooves and the sliding block, the supporting rod can be moved more stably, the clamping effect is prevented from being influenced by the inclination, the limiting block is arranged on the supporting rod, and the clamping stability between the supporting rod and the roller is improved.
Furthermore, the pressing rollers and the hot air boxes are symmetrically arranged in the oven, the hot air boxes are connected with the flow distribution disc through the connecting pipes, the spray heads are uniformly arranged on the flow distribution disc, hot air is generated through the hot air boxes, and can be conveyed to the flow distribution disc through the connecting pipes, and then the flow distribution disc is dried through the spray heads.
Due to the adoption of the technical scheme, the invention has the following beneficial effects:
1. the invention improves the heat resistance of the wrapping belt, has high bonding strength, cold flow permeation, more excellent viscosity, aging resistance and good stability, fully exerts the aging resistance and ultraviolet resistance of the PVDF film and the air tightness and water tightness of the butyl rubber, prolongs the service life of the wrapping belt, makes the wrapping construction of the bridge cable more simple and convenient, and improves the construction efficiency.
2. The preparation process combines the fluorine-containing weather-resistant film layer with the PET film layer in a compounding manner, so that the surface layer material has excellent ageing resistance, corrosion resistance and barrier property, and combines the ageing resistance, corrosion resistance and barrier property of the surface layer material with the air tightness and water tightness of the high-performance sealant by coating the butyl glue layer, so that the advantages of the surface layer material and the high-performance sealant are fully played, and the durable waterproof effect is realized.
3. The driving mechanism drives the clamping mechanism to rotate, so that the roller can rotate continuously, the preparation efficiency of the wrapping belt is improved, and the defective rate is reduced.
Drawings
The invention will be further described with reference to the accompanying drawings in which:
FIG. 1 is a schematic structural diagram of a cold-bonding PVDF wrapping belt for bridge cable protection and a wrapping belt in a preparation process thereof;
FIG. 2 is a process diagram of the preparation of the wrapping tape of the present invention;
fig. 3 is a schematic structural diagram of a first unwinding device, a second unwinding device and a winding device in the present invention;
FIG. 4 is an effect diagram of the clamping mechanism of the present invention;
FIG. 5 is a schematic view of the internal structure of the clamping mechanism of the present invention;
fig. 6 is a schematic view of the structure of the oven of the present invention.
In the figure: 1-a fluorine-containing weather-resistant film layer; 2-glue layer; 3-a PET film layer; 4-high performance sealant layer; 5-isolating film layer; 6, a first unwinding device; 7-gluing a rubber roller; 8-baking oven; 9-a laminating roller; 10-a winding device; 11-a second unwinding device; 12-a box body; 13-a base plate; 14-a support frame; 15-a support block; 16-a riding wheel; 17-a first electric machine; 18-a turning block; 19-a sleeve; 20-a roller; 21-a clamping mechanism; 22-a turntable; 23-a first guide groove; 24-a cylinder; 25-fixed column; 26-a limit groove; 27-a support bar; 28-a limiting block; 29-a slide block; 30-a connecting rod; 31-a second channel; 32-a fixation rod; 33-a fixing frame; 34-a moving rack; 35-a piston rod; 36-a pressure roller; 37-hot air box; 38-diverter tray; 39-a linker tube; 40-spray head.
Detailed Description
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.
It is noted that the terms first, second and the like in the description and in the claims, and in the drawings, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. Furthermore, the terms "comprising" and "having," as well as any variations thereof, are intended to cover non-exclusive inclusions.
As shown in fig. 1 to 6, the cold-bonding PVDF wrapping tape for protecting a bridge cable according to the present invention comprises a fluorine-containing weather-resistant film layer 1, a glue layer 2, a PET film layer 3, a high performance sealing glue layer 4 and an isolation film layer 5, wherein the glue layer 2 is disposed between the fluorine-containing weather-resistant film layer 1 and the PET film layer 3, and the high performance sealing glue layer 4 is disposed between the PET film layer 3 and the isolation film layer 5, so as to improve the performance of the wrapping tape; through the design of above-mentioned structure, can improve the heat resistance of wrapping band, adhesive strength is high, and cold flow infiltration holds the viscidity more excellent, and ageing resistance and stability are good. The glue layer 2 is a polyurethane film layer. The high-performance sealant layer 4 is a butyl adhesive film layer. The properties of the PVDF wraparound tape are shown in Table 1.
The thickness of the fluorine-containing weather-resistant film layer 1 is 5-100 microns, the thickness of the glue layer 2 is 5-30 microns, the thickness of the PET film layer 3 is 20-250 microns, the thickness of the high-performance sealing glue layer 4 is 150-1000 microns, and the thickness of the surface layer is 10-50 microns.
TABLE 1
The preparation process of the cold-bonding PVDF wrapping belt for bridge cable protection comprises the following steps:
a. unreeling: putting the fluorine-containing weather-resistant film layer 1 and the PET film layer 3 into a production line for production through a first unreeling device 6, wherein a plurality of first unreeling devices are arranged and used for conveying the fluorine-containing weather-resistant film layer 1 and the PET film layer 3 respectively, and the conveying speed is controlled according to the thicknesses of the fluorine-containing weather-resistant film layer 1 and the PET film layer 3; first unwinding device 6 specifically includes box 12, actuating mechanism, fixture 21 and roller 20, through bottom plate 13 fixed connection between two boxes 12, be provided with supporting mechanism between bottom plate 13 and the box 12, fixture 21 passes through actuating mechanism and connects box 12, be provided with roller 20 between two fixture 21, it is winding on the roller to contain fluorine resistant film layer 1 and PET rete 3, it is rotatory to drive fixture 21 through actuating mechanism, can realize roller 20's continuous rotation, improve the preparation efficiency who twines the band, reduce the defective percentage.
The supporting mechanism comprises a supporting frame 14, supporting blocks 15 and supporting wheels 16, the supporting frame 14 is arranged between the box body 12 and the bottom plate 13, the supporting wheels 16 are connected with the supporting frame 14 through the supporting blocks 15, the supporting frame 14, the supporting blocks 15 and the supporting wheels 16 can improve the supporting strength of the driving mechanism, and the stability and the reliability of the clamping mechanism 21 in rotation are improved.
The driving mechanism comprises a first motor 17, a rotating block 18 and a sleeve 19, an output shaft of the first motor 17 is connected with the rotating block 18, the rotating block 18 is connected with a clamping mechanism 21 through the sleeve 19, the sleeve 19 is supported through a supporting mechanism, the stability of the clamping mechanism 21 during rotation is improved, the first motor 17 drives the sleeve 19 to rotate through the rotating block 18, and then the clamping mechanism 21 can be driven to rotate.
The clamping mechanism 21 comprises a rotary table 22, an air cylinder 24, a fixed column 25, a supporting rod 27, a fixed frame 33 and a movable frame 34, wherein the air cylinder 24 is arranged on the rotary table 22, the fixed column 25 is fixedly connected with the rotary table 22, the inner part of the fixed column 25 is hollow, a limiting groove 26 is arranged on the fixed column 25, four first guide grooves 23 are arranged on the rotary table 22, the end part of the supporting rod 27 is limited on the first guide groove 23 through a sliding block 29, the fixed frame 33 is connected with a second guide groove 31 on the supporting rod 27 through one end of a connecting rod 30, the supporting rod 27 is connected with the movable frame 34 through the connecting rod 30, the fixed frame 33 is fixedly connected with the fixed column 25 through a fixed rod 32, the movable frame 34 is connected with the air cylinder 24 through a piston rod 35, the piston rod 35 is driven to be pushed out through the air cylinder 24, the movable frame 34 can be driven to move, the supporting rod 27 is pushed out or pulled in through the connecting rod 30, the clamping of rollers 20 with different sizes is met, and the stability and the reliability during unreeling and reeling are improved, the four supporting rods 27 can move synchronously, the clamping reliability is improved, the supporting rods 27 can move more stably due to the design of the first guide grooves 23 and the sliding blocks 29, the clamping effect is prevented from being influenced due to the fact that the supporting rods 27 incline, the limiting blocks 28 are installed on the supporting rods 27, and the clamping stability between the supporting rods 27 and the roller 20 is improved.
b. Gluing: coating glue on the surface of the PET film layer 3 in an extrusion or roller type coating mode, and conveying the PET film layer 3 through a gluing roller 7;
c. drying: the solvent in the glue is dried by a plurality of drying ovens 8 to form a glue layer 2, the glue layer is a polyurethane film layer, the bonding strength between the fluorine-containing weather-resistant film layer 1 and the PET film layer 3 is favorably improved, and the strength and the stability of the whole wrapping belt are further improved; the oven 8 is internally and symmetrically provided with the pressing rollers 36 and the hot air box 37, the hot air box 37 is connected with the shunt plate 38 through the connecting pipe 39, the shunt plate 38 is uniformly provided with the spray heads 40, hot air is generated through the hot air box 37 and can be conveyed to the shunt plate 38 through the connecting pipe 39, and then the shunt plate 38 is dried through the spray heads 40, so that the fluorine-containing weather-resistant film layer 1 and the PET film layer 3 are bonded more firmly.
d. Compounding: laminating the PET film layer 3 coated with the adhesive layer 2 and the fluorine-containing weather-resistant film layer 1 in a hot pressing mode through a rubber roller and a steel roller, and finishing the lamination of the PET film layer 3 and the fluorine-containing weather-resistant film layer 1, wherein the compounding temperature is 30-100 ℃;
e. winding: after the lamination is finished, the obtained surface layer material is rolled up by a rolling device 10 to finish the finished product; the winding device 10 comprises box bodies 12, driving mechanisms, clamping mechanisms 21 and rollers 20, the two box bodies 12 are fixedly connected through a bottom plate 13, a supporting mechanism is arranged between the bottom plate 13 and the box bodies 12, the clamping mechanisms 21 are connected with the box bodies 12 through the driving mechanisms, the rollers 20 are arranged between the two clamping mechanisms 21, the driving mechanisms drive the clamping mechanisms 21 to rotate, the rollers 20 can rotate continuously, the preparation efficiency of winding and wrapping belts is improved, and the defective rate is reduced.
The supporting mechanism comprises a supporting frame 14, supporting blocks 15 and supporting wheels 16, the supporting frame 14 is arranged between the box body 12 and the bottom plate 13, the supporting wheels 16 are connected with the supporting frame 14 through the supporting blocks 15, the supporting frame 14, the supporting blocks 15 and the supporting wheels 16 can improve the supporting strength of the driving mechanism, and the stability and the reliability of the clamping mechanism 21 in rotation are improved.
The driving mechanism comprises a first motor 17, a rotating block 18 and a sleeve 19, an output shaft of the first motor 17 is connected with the rotating block 18, the rotating block 18 is connected with a clamping mechanism 21 through the sleeve 19, the sleeve 19 is supported through a supporting mechanism, the stability of the clamping mechanism 21 during rotation is improved, the first motor 17 drives the sleeve 19 to rotate through the rotating block 18, and then the clamping mechanism 21 can be driven to rotate.
The clamping mechanism 21 comprises a rotary table 22, an air cylinder 24, a fixed column 25, a supporting rod 27, a fixed frame 33 and a movable frame 34, wherein the air cylinder 24 is arranged on the rotary table 22, the fixed column 25 is fixedly connected with the rotary table 22, the inner part of the fixed column 25 is hollow, a limiting groove 26 is arranged on the fixed column 25, four first guide grooves 23 are arranged on the rotary table 22, the end part of the supporting rod 27 is limited on the first guide groove 23 through a sliding block 29, the fixed frame 33 is connected with a second guide groove 31 on the supporting rod 27 through one end of a connecting rod 30, the supporting rod 27 is connected with the movable frame 34 through the connecting rod 30, the fixed frame 33 is fixedly connected with the fixed column 25 through a fixed rod 32, the movable frame 34 is connected with the air cylinder 24 through a piston rod 35, the piston rod 35 is driven to be pushed out through the air cylinder 24, the movable frame 34 can be driven to move, the supporting rod 27 is pushed out or pulled in through the connecting rod 30, the clamping of rollers 20 with different sizes is met, and the stability and the reliability during unreeling and reeling are improved, the four supporting rods 27 can move synchronously, the clamping reliability is improved, the supporting rods 27 can move more stably due to the design of the first guide grooves 23 and the sliding blocks 29, the clamping effect is prevented from being influenced due to the fact that the supporting rods 27 incline, the limiting blocks 28 are installed on the supporting rods 27, and the clamping stability between the supporting rods 27 and the roller 20 is improved.
f. Unreeling: the surface material layer is discharged through a first unwinding device 6 and enters a production line; the first unwinding device 6 comprises a box body 12, a driving mechanism, clamping mechanisms 21 and rollers 20, wherein the two box bodies 12 are fixedly connected through a bottom plate 13, a supporting mechanism is arranged between the bottom plate 13 and the box body 12, the clamping mechanisms 21 are connected with the box body 12 through the driving mechanism, the rollers 20 are arranged between the two clamping mechanisms 21, the driving mechanism drives the clamping mechanisms 21 to rotate, the rollers 20 can continuously rotate, the preparation efficiency of wrapping belts is improved, and the defective rate is reduced.
The supporting mechanism comprises a supporting frame 14, supporting blocks 15 and supporting wheels 16, the supporting frame 14 is arranged between the box body 12 and the bottom plate 13, the supporting wheels 16 are connected with the supporting frame 14 through the supporting blocks 15, the supporting frame 14, the supporting blocks 15 and the supporting wheels 16 can improve the supporting strength of the driving mechanism, and the stability and the reliability of the clamping mechanism 21 in rotation are improved.
The driving mechanism comprises a first motor 17, a rotating block 18 and a sleeve 19, an output shaft of the first motor 17 is connected with the rotating block 18, the rotating block 18 is connected with a clamping mechanism 21 through the sleeve 19, the sleeve 19 is supported through a supporting mechanism, the stability of the clamping mechanism 21 during rotation is improved, the first motor 17 drives the sleeve 19 to rotate through the rotating block 18, and then the clamping mechanism 21 can be driven to rotate.
The clamping mechanism 21 comprises a rotary table 22, an air cylinder 24, a fixed column 25, a supporting rod 27, a fixed frame 33 and a movable frame 34, wherein the air cylinder 24 is arranged on the rotary table 22, the fixed column 25 is fixedly connected with the rotary table 22, the inner part of the fixed column 25 is hollow, a limiting groove 26 is arranged on the fixed column 25, four first guide grooves 23 are arranged on the rotary table 22, the end part of the supporting rod 27 is limited on the first guide groove 23 through a sliding block 29, the fixed frame 33 is connected with a second guide groove 31 on the supporting rod 27 through one end of a connecting rod 30, the supporting rod 27 is connected with the movable frame 34 through the connecting rod 30, the fixed frame 33 is fixedly connected with the fixed column 25 through a fixed rod 32, the movable frame 34 is connected with the air cylinder 24 through a piston rod 35, the piston rod 35 is driven to be pushed out through the air cylinder 24, the movable frame 34 can be driven to move, the supporting rod 27 is pushed out or pulled in through the connecting rod 30, the clamping of rollers 20 with different sizes is met, and the stability and the reliability during unreeling and reeling are improved, the four supporting rods 27 can move synchronously, the clamping reliability is improved, the supporting rods 27 can move more stably due to the design of the first guide grooves 23 and the sliding blocks 29, the clamping effect is prevented from being influenced due to the fact that the supporting rods 27 incline, the limiting blocks 28 are installed on the supporting rods 27, and the clamping stability between the supporting rods 27 and the roller 20 is improved.
g. Gluing: coating the high-performance sealant on the surface of the PET film layer 3 by adopting an extrusion type or roller 20 type coating method, wherein the coating temperature is 120-140 ℃;
h. film covering: covering the isolating film on the surface of the adhesive layer 2 through a film covering roller 9 by a second unreeling device 11; the second unreeling device 11 comprises box bodies 12, driving mechanisms, clamping mechanisms 21 and rollers 20, the two box bodies 12 are fixedly connected through a bottom plate 13, supporting mechanisms are arranged between the bottom plate 13 and the box bodies 12, the clamping mechanisms 21 are connected with the box bodies 12 through the driving mechanisms, the rollers 20 are arranged between the two clamping mechanisms 21, the driving mechanisms drive the clamping mechanisms 21 to rotate, the rollers 20 can rotate continuously, the manufacturing efficiency of wrapping belts is improved, and the defective rate is reduced.
The supporting mechanism comprises a supporting frame 14, supporting blocks 15 and supporting wheels 16, the supporting frame 14 is arranged between the box body 12 and the bottom plate 13, the supporting wheels 16 are connected with the supporting frame 14 through the supporting blocks 15, the supporting frame 14, the supporting blocks 15 and the supporting wheels 16 can improve the supporting strength of the driving mechanism, and the stability and the reliability of the clamping mechanism 21 in rotation are improved.
The driving mechanism comprises a first motor 17, a rotating block 18 and a sleeve 19, an output shaft of the first motor 17 is connected with the rotating block 18, the rotating block 18 is connected with a clamping mechanism 21 through the sleeve 19, the sleeve 19 is supported through a supporting mechanism, the stability of the clamping mechanism 21 during rotation is improved, the first motor 17 drives the sleeve 19 to rotate through the rotating block 18, and then the clamping mechanism 21 can be driven to rotate.
The clamping mechanism 21 comprises a rotary table 22, an air cylinder 24, a fixed column 25, a supporting rod 27, a fixed frame 33 and a movable frame 34, wherein the air cylinder 24 is arranged on the rotary table 22, the fixed column 25 is fixedly connected with the rotary table 22, the inner part of the fixed column 25 is hollow, a limiting groove 26 is arranged on the fixed column 25, four first guide grooves 23 are arranged on the rotary table 22, the end part of the supporting rod 27 is limited on the first guide groove 23 through a sliding block 29, the fixed frame 33 is connected with a second guide groove 31 on the supporting rod 27 through one end of a connecting rod 30, the supporting rod 27 is connected with the movable frame 34 through the connecting rod 30, the fixed frame 33 is fixedly connected with the fixed column 25 through a fixed rod 32, the movable frame 34 is connected with the air cylinder 24 through a piston rod 35, the piston rod 35 is driven to be pushed out through the air cylinder 24, the movable frame 34 can be driven to move, the supporting rod 27 is pushed out or pulled in through the connecting rod 30, the clamping of rollers 20 with different sizes is met, and the stability and the reliability during unreeling and reeling are improved, the four supporting rods 27 can move synchronously, the clamping reliability is improved, the supporting rods 27 can move more stably due to the design of the first guide grooves 23 and the sliding blocks 29, the clamping effect is prevented from being influenced due to the fact that the supporting rods 27 incline, the limiting blocks 28 are installed on the supporting rods 27, and the clamping stability between the supporting rods 27 and the roller 20 is improved.
i. Winding: after the laminating is accomplished, obtain PVDF twines band, accomplish the rolling through coiling mechanism 10, coiling mechanism 10 includes box 12, actuating mechanism, fixture 21 and roller 20, through bottom plate 13 fixed connection between two boxes 12, be provided with supporting mechanism between bottom plate 13 and the box 12, fixture 21 passes through actuating mechanism and connects box 12, be provided with roller 20 between two fixture 21, it is rotatory to drive fixture 21 through actuating mechanism, can realize roller 20's continuous rotation, improve the preparation efficiency who twines the band, reduce the defective percentage.
The supporting mechanism comprises a supporting frame 14, supporting blocks 15 and supporting wheels 16, the supporting frame 14 is arranged between the box body 12 and the bottom plate 13, the supporting wheels 16 are connected with the supporting frame 14 through the supporting blocks 15, the supporting frame 14, the supporting blocks 15 and the supporting wheels 16 can improve the supporting strength of the driving mechanism, and the stability and the reliability of the clamping mechanism 21 in rotation are improved.
The driving mechanism comprises a first motor 17, a rotating block 18 and a sleeve 19, an output shaft of the first motor 17 is connected with the rotating block 18, the rotating block 18 is connected with a clamping mechanism 21 through the sleeve 19, the sleeve 19 is supported through a supporting mechanism, the stability of the clamping mechanism 21 during rotation is improved, the first motor 17 drives the sleeve 19 to rotate through the rotating block 18, and then the clamping mechanism 21 can be driven to rotate.
The clamping mechanism 21 comprises a rotary table 22, an air cylinder 24, a fixed column 25, a supporting rod 27, a fixed frame 33 and a movable frame 34, wherein the air cylinder 24 is arranged on the rotary table 22, the fixed column 25 is fixedly connected with the rotary table 22, the inner part of the fixed column 25 is hollow, a limiting groove 26 is arranged on the fixed column 25, four first guide grooves 23 are arranged on the rotary table 22, the end part of the supporting rod 27 is limited on the first guide groove 23 through a sliding block 29, the fixed frame 33 is connected with a second guide groove 31 on the supporting rod 27 through one end of a connecting rod 30, the supporting rod 27 is connected with the movable frame 34 through the connecting rod 30, the fixed frame 33 is fixedly connected with the fixed column 25 through a fixed rod 32, the movable frame 34 is connected with the air cylinder 24 through a piston rod 35, the piston rod 35 is driven to be pushed out through the air cylinder 24, the movable frame 34 can be driven to move, the supporting rod 27 is pushed out or pulled in through the connecting rod 30, the clamping of rollers 20 with different sizes is met, and the stability and the reliability during unreeling and reeling are improved, the four supporting rods 27 can move synchronously, the clamping reliability is improved, the supporting rods 27 can move more stably due to the design of the first guide grooves 23 and the sliding blocks 29, the clamping effect is prevented from being influenced due to the fact that the supporting rods 27 incline, the limiting blocks 28 are installed on the supporting rods 27, and the clamping stability between the supporting rods 27 and the roller 20 is improved.
The process combines the fluorine-containing weather-resistant film layer 1 and the PET film layer 3 through compounding, so that the surface layer material has excellent ageing resistance, corrosion resistance and barrier property, combines the ageing resistance, corrosion resistance and barrier property of the surface layer material with the air tightness and water tightness of the high-performance sealant through coating the butyl glue layer 2, fully exerts the advantages of the ageing resistance, corrosion resistance and barrier property and achieves durable water resistance.
The above is only a specific embodiment of the present invention, but the technical features of the present invention are not limited thereto. Any simple variations, equivalent substitutions or modifications based on the present invention to achieve substantially the same technical effects are within the scope of the present invention.
Claims (10)
1. The utility model provides a bridge cable protection is with cold type PVDF area of twining which characterized in that: the wrapping belt comprises a fluorine-containing weather-resistant film layer, a glue layer, a PET film layer, a high-performance sealing glue layer and an isolation film layer, wherein the glue layer is arranged between the fluorine-containing weather-resistant film layer and the PET film layer, and the high-performance sealing glue layer is arranged between the PET film layer and the isolation film layer, so that the performance of the wrapping belt is improved.
2. The cold-bonding PVDF wrapping tape for bridge cable protection as claimed in claim 1, wherein: the glue layer is a polyurethane film layer.
3. The cold-bonding PVDF wrapping tape for bridge cable protection as claimed in claim 1, wherein: the high-performance sealing adhesive layer is a butyl rubber film layer.
4. The cold-bonding PVDF wrapping tape for bridge cable protection as claimed in claim 1, wherein: the thickness of the fluorine-containing weather-resistant film layer is 5-100 microns, the thickness of the glue layer is 5-30 microns, the thickness of the PET film layer is 20-250 microns, the thickness of the high-performance sealing glue layer is 150-1000 microns, and the thickness of the surface layer is 10-50 microns.
5. The preparation process of the cold-bonding PVDF wrapping tape for bridge cable protection as claimed in any one of claims 1 to 5, characterized by comprising the following steps:
a. unreeling: putting the fluorine-containing weather-resistant film layer and the PET film layer into a production line for production through a first unreeling device;
b. gluing: coating glue on the surface of the PET film layer by adopting an extrusion type or roller type coating mode;
c. drying: drying the solvent in the glue by using an oven to form a glue layer;
d. compounding: laminating the PET film layer coated with the adhesive layer and the fluorine-containing weather-resistant film layer in a hot pressing mode through a rubber roller and a steel roller, and finishing laminating the PET film layer and the fluorine-containing weather-resistant film layer, wherein the compounding temperature is 30-100 ℃;
e. winding: after the laminating is finished, the obtained surface layer material is rolled up the finished product through a rolling device;
f. unreeling: the surface material layer is discharged through a first unwinding device and enters a production line;
g. gluing: coating the high-performance sealant on the surface of the PET film layer by adopting an extrusion type or roller type coating method, wherein the coating temperature is 120-140 ℃;
h. film covering: covering the isolation film on the surface of the adhesive layer through a film covering roller by a second unwinding device;
i. winding: and after the laminating is finished, obtaining a PVDF wrapping belt, and finishing the wrapping through a wrapping device.
6. The preparation process of the cold-bonding PVDF wrapping tape for bridge cable protection as claimed in claim 5, wherein: the first unwinding device, the second unwinding device and the winding device all comprise boxes, driving mechanisms, clamping mechanisms and rollers, the two unwinding devices are fixedly connected with the boxes through bottom plates, supporting mechanisms are arranged between the bottom plates and the boxes, the clamping mechanisms are connected with the boxes through the driving mechanisms, and the rollers are arranged between the two clamping mechanisms.
7. The preparation process of the cold-bonding PVDF wrapping tape for bridge cable protection as claimed in claim 6, wherein: the supporting mechanism comprises a supporting frame, a supporting block and a supporting wheel, the supporting frame is arranged between the box body and the bottom plate, and the supporting wheel is connected with the supporting frame through the supporting block.
8. The preparation process of the cold-bonding PVDF wrapping tape for bridge cable protection as claimed in claim 6, wherein: the driving mechanism comprises a first motor, a rotating block and a sleeve, an output shaft of the first motor is connected with the rotating block, the rotating block is connected with the clamping mechanism through the sleeve, and the sleeve is supported through the supporting mechanism.
9. The preparation process of the cold-bonding PVDF wrapping tape for bridge cable protection as claimed in claim 8, wherein: the clamping mechanism comprises a rotary table, a cylinder, a fixed column, a supporting rod, a fixing frame and a moving frame, the cylinder is arranged on the rotary table, the fixed column is fixedly connected with the rotary table, the fixed column is hollow, a limiting groove is formed in the fixed column, four first guide grooves are formed in the rotary table, the end portion of the supporting rod is limited on the first guide grooves through a sliding block, the fixing frame is connected with one end of a connecting rod through a second guide groove in the supporting rod, the supporting rod is connected with the moving frame through the connecting rod, the fixing frame is fixedly connected with the fixed column through a fixing rod, and the moving frame is connected with the cylinder through a piston rod.
10. The preparation process of the cold-bonding PVDF wrapping tape for bridge cable protection as claimed in claim 5, wherein: the baking oven is characterized in that the inside of the baking oven is symmetrically provided with a pressing roller and a hot air box, the hot air box is connected with a flow distribution disc through a connecting pipe, and spray heads are uniformly arranged on the flow distribution disc.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111591831.7A CN114248514A (en) | 2021-12-23 | 2021-12-23 | Cold-bonding PVDF wrapping belt for bridge cable protection and preparation process thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111591831.7A CN114248514A (en) | 2021-12-23 | 2021-12-23 | Cold-bonding PVDF wrapping belt for bridge cable protection and preparation process thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117126615A (en) * | 2023-07-14 | 2023-11-28 | 广东省公路建设有限公司湾区特大桥养护技术中心 | Fluorocarbon polymer composite wrapping tape and preparation method and application thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110254024A (en) * | 2019-06-11 | 2019-09-20 | 广东中粘新材料科技有限公司 | A kind of multi-function membrane compounding machine |
| CN111497400A (en) * | 2020-06-03 | 2020-08-07 | 山东方兴防腐工程有限公司 | Multipurpose gold-plastic composite building covering protection material and process method |
-
2021
- 2021-12-23 CN CN202111591831.7A patent/CN114248514A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110254024A (en) * | 2019-06-11 | 2019-09-20 | 广东中粘新材料科技有限公司 | A kind of multi-function membrane compounding machine |
| CN111497400A (en) * | 2020-06-03 | 2020-08-07 | 山东方兴防腐工程有限公司 | Multipurpose gold-plastic composite building covering protection material and process method |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117126615A (en) * | 2023-07-14 | 2023-11-28 | 广东省公路建设有限公司湾区特大桥养护技术中心 | Fluorocarbon polymer composite wrapping tape and preparation method and application thereof |
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