CN114054646A - Weaving system and process of high-light-transmission silk screen and silk screen - Google Patents
Weaving system and process of high-light-transmission silk screen and silk screen Download PDFInfo
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- CN114054646A CN114054646A CN202111315807.0A CN202111315807A CN114054646A CN 114054646 A CN114054646 A CN 114054646A CN 202111315807 A CN202111315807 A CN 202111315807A CN 114054646 A CN114054646 A CN 114054646A
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- 238000009941 weaving Methods 0.000 title claims abstract description 86
- 238000000034 method Methods 0.000 title claims abstract description 51
- 230000008569 process Effects 0.000 title claims abstract description 50
- 230000007246 mechanism Effects 0.000 claims abstract description 141
- 238000007590 electrostatic spraying Methods 0.000 claims abstract description 38
- 239000011248 coating agent Substances 0.000 claims abstract description 21
- 238000000576 coating method Methods 0.000 claims abstract description 21
- 229910001220 stainless steel Inorganic materials 0.000 claims abstract description 16
- 239000010935 stainless steel Substances 0.000 claims abstract description 8
- 238000005507 spraying Methods 0.000 claims description 20
- 230000005540 biological transmission Effects 0.000 claims description 18
- 239000006223 plastic coating Substances 0.000 claims description 8
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 claims description 7
- 239000003063 flame retardant Substances 0.000 claims description 7
- 229920000728 polyester Polymers 0.000 claims description 5
- 239000000843 powder Substances 0.000 claims description 4
- 238000005096 rolling process Methods 0.000 claims description 3
- 239000004698 Polyethylene Substances 0.000 claims description 2
- -1 polyethylene Polymers 0.000 claims description 2
- 229920000573 polyethylene Polymers 0.000 claims description 2
- 230000001360 synchronised effect Effects 0.000 claims description 2
- 238000002834 transmittance Methods 0.000 abstract description 8
- 239000002184 metal Substances 0.000 abstract description 6
- 230000032683 aging Effects 0.000 abstract description 2
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- 238000005516 engineering process Methods 0.000 description 3
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21F—WORKING OR PROCESSING OF METAL WIRE
- B21F27/00—Making wire network, i.e. wire nets
- B21F27/005—Wire network per se
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B16/00—Spray booths
- B05B16/20—Arrangements for spraying in combination with other operations, e.g. drying; Arrangements enabling a combination of spraying operations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B5/00—Electrostatic spraying apparatus; Spraying apparatus with means for charging the spray electrically; Apparatus for spraying liquids or other fluent materials by other electric means
- B05B5/08—Plant for applying liquids or other fluent materials to objects
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B5/00—Electrostatic spraying apparatus; Spraying apparatus with means for charging the spray electrically; Apparatus for spraying liquids or other fluent materials by other electric means
- B05B5/08—Plant for applying liquids or other fluent materials to objects
- B05B5/082—Plant for applying liquids or other fluent materials to objects characterised by means for supporting, holding or conveying the objects
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D1/00—Processes for applying liquids or other fluent materials
- B05D1/02—Processes for applying liquids or other fluent materials performed by spraying
- B05D1/04—Processes for applying liquids or other fluent materials performed by spraying involving the use of an electrostatic field
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D5/00—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/14—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to metal, e.g. car bodies
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/24—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials for applying particular liquids or other fluent materials
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21F—WORKING OR PROCESSING OF METAL WIRE
- B21F27/00—Making wire network, i.e. wire nets
- B21F27/02—Making wire network, i.e. wire nets without additional connecting elements or material at crossings, e.g. connected by knitting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D2202/00—Metallic substrate
- B05D2202/10—Metallic substrate based on Fe
- B05D2202/15—Stainless steel
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D2507/00—Polyolefins
- B05D2507/01—Polyethylene
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Textile Engineering (AREA)
- Woven Fabrics (AREA)
Abstract
The invention relates to a weaving system and a weaving process of a high-light-transmission silk screen and the silk screen, and belongs to the field of weaving of metal silk screens. The weaving system comprises a net weaving machine, an electrostatic spraying mechanism, a curing oven, a constant tension mechanism and an external net collecting mechanism. Wherein, the electrostatic spraying mechanism and the curing oven are arranged between the constant tension mechanisms, and the weaving machine weaves the stainless steel warp and weft into a mesh surface; the output net surface is tensioned by a constant tension mechanism, sequentially enters an electrostatic spraying mechanism and a curing oven, and is finally wound by an external net collecting mechanism to form a structure integrating weaving and coating. The silk screen prepared by the system or the process has high light transmittance, tear resistance and deformation resistance, the elongation rate can reach 40%, and the silk screen is ageing-resistant.
Description
Technical Field
The invention relates to the technical field of silk screen manufacturing, in particular to a weaving system and a weaving process of a high-light-transmission silk screen and a silk screen prepared by the system or the process.
Background
Window screens or screens are a common form of screen that is woven from yarns that cross perpendicularly or nearly perpendicularly. It is generally desirable that the screen as a whole should have good light and air permeability and be able to block the passage of small insects; the screen is tensioned in use in a suitable frame and therefore requires a certain extensibility of the screen.
In the prior art, some gauze is woven by plastic yarns, but the plastic gauze has lower strength, is easy to age and has shorter service life; some metal plates are punched into a net shape, which has high strength and scratch resistance, but has poor ductility and light transmittance. The market demands a gauze product with higher strength, stronger ductility and good light transmittance.
Disclosure of Invention
The embodiment of the invention provides a weaving system and process of a high-light-transmission silk screen and the silk screen, wherein the silk screen is woven by stainless steel yarns and integrally sprayed, and is woven into the silk screen with high light transmission and high elongation.
To achieve the above object, a first aspect of the present invention provides a high light transmission screen weaving system, including:
the weaving machine comprises a frame and a net weaving mechanism arranged on the frame;
the constant tension mechanism comprises a first guide roller set and a second tension mechanism; the first guide roller group is arranged on one side of the weaving machine and used for conducting the net surface output from the net weaving mechanism, and the second tension mechanism comprises a power roller, a second guide roller and a net surface used for tensioning and guiding the net surface passing through the first guide roller group;
the electrostatic spraying mechanism and the curing oven are sequentially arranged between the first guide roller set and the second tension mechanism, and the tensioned mesh surface sequentially passes through the electrostatic spraying mechanism and the curing oven;
the external net collecting mechanism is arranged on one side of the second tension mechanism, which is far away from the loom, and is synchronous with the linear velocity of a power roller of the second tension mechanism;
wherein, the net surface output by the net weaving mechanism is connected with the net drawing mechanism outside the machine through a constant tension mechanism to form a structure integrating weaving and coating.
In the technical scheme, the mesh weaving mechanism is used for weaving the warps and the wefts into a silk screen with square holes, and the warps and the wefts of the silk screen are not fixed and shaped; the silk screen output from the mesh weaving mechanism is tensioned by a constant tension mechanism and is finally wound by an external mesh collecting mechanism, and in the whole process, the tension of the silk screen is controlled to be balanced, and the silk screen does not move or is tensioned for the second time. In the tensioning and rolling processes, the silk screen sequentially passes through the electrostatic spraying mechanism and the silk screen of the curing furnace, a cured plastic coating is formed on the surface of the silk screen, and the fixing and shaping of the warp and the weft are formed. Therefore, the meshes of the shaped silk screen are not deformed, the meshes are square, and the light transmittance of the silk screen reaches more than 80%; and the elongation of the silk screen is higher and can reach more than 40 percent.
In one embodiment, the electrostatic spraying mechanism and the curing oven are respectively provided with a mesh opening for passing the mesh surface, and the mesh openings are arranged at the same height.
Optionally, the first guide roller group includes more than 2 first guide rollers, wherein at least one first guide roller is arranged at the same height as the screen passing opening; the second tension mechanism comprises a power roller and more than 2 second guide rollers, wherein at least one second guide roller is arranged at the same height with the net passing port; the first guide roller and the second guide roller are arranged at the same height with the screen passing opening, and the screen surface horizontally penetrates through the electrostatic spraying mechanism and the curing oven. The horizontally tensioned silk screen is easy to form an even and ultrathin coating in the electrostatic spraying mechanism, and is beneficial to forming a high-transparency silk screen.
Illustratively, the first guide roller group comprises at least one pair of lower guide rollers arranged close to the ground and at least one upper guide roller arranged at the same height as the wire passing opening; wherein, a pedal convenient for operation is arranged above the lower guide roller.
The constant tension mechanism provides adjustable constant tension through the first guide roller group and the second tension mechanism, and the adjustable constant tension is improved for the screen surface to tension the screen surface, so that the constant tension mechanism rotates synchronously with the screen tensioning mechanism and the external screen collecting mechanism.
The second aspect of the invention provides a high light transmission silk screen weaving process, which comprises the following steps:
weaving the stainless steel warp and weft into a net surface by a net weaving mechanism;
tensioning the output net surface by a constant tension mechanism, sequentially entering a spraying process and a curing process, and finally rolling by an external net collecting mechanism;
the constant tension mechanism comprises a first guide roller set and a second tension mechanism; the first guide roller group is arranged on one side of the net weaving mechanism and used for conducting the net surface output from the net weaving mechanism, and the second tension mechanism comprises a power roller, a second guide roller and a net surface used for constant-force tensioning and guiding the net surface through the first guide roller group;
the spraying process is based on an electrostatic spraying mechanism which is arranged between the first guide roller set and the second tension mechanism, wherein the tensioned screen surface passes through the electrostatic spraying mechanism and is sprayed with a plastic coating on the surface of the screen;
the curing process is based on a curing oven arranged between the electrostatic spraying mechanism and the second tension mechanism, the curing oven is arranged behind the electrostatic spraying mechanism, the tensioned mesh surface passes through the electrostatic spraying mechanism and then continuously enters the curing oven, and the plastic coating is cured on the surface of the silk screen to form a fixed structure of warp and weft of the silk screen.
The weaving process and the weaving system are based on the invention concept of weaving and coating integration. Based on the same principle, the weaving process has the same beneficial effects as the weaving system.
The knitting speed of the silk screen in the mesh knitting process is 28-50cm/min as one embodiment; the retention time of the sprayed silk screen in the curing process is 1.5-3 min.
A third aspect of the invention provides a high light transmission screen, which is prepared by the above system or the above process.
As a possible example, the screen comprises a stainless steel wire screen core and a flame-retardant polyester coating sprayed and cured on the surface of the stainless steel wire screen core; wherein the stainless steel wire mesh core is formed by weaving warps and wefts, the diameter of the warps and/or wefts is 0.1-0.2 mm, and the thickness of the flame-retardant polyester coating is 0.01-0.015 mm.
Drawings
FIG. 1 is a schematic structural view of a weaving system according to an embodiment of the invention;
the device comprises 100-a net surface, 10-a weaving machine, 20-a first guide roller set, 21-a lower guide roller, 22-a pedal, 23-an upper guide roller, 30-an electrostatic spraying mechanism, 31-a spraying chamber, 32-an electrostatic spray gun, 33-a net passing port, 40-a curing furnace, 50-a second tension mechanism, 51-a second power roller, 52-a second guide roller and 60-an external net collecting mechanism.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The traditional weaving process of the metal wire mesh for the window screen is carried out in sections, namely, the weaving of the metal mesh is firstly completed, and then the wire mesh is sprayed. Correspondingly, the weaving system comprises a silk screen weaving machine and a silk screen spraying machine which are respectively and independently arranged. When the weaving system is applied specifically, the woven silk screen is rolled and then transferred to a spraying machine station for spraying and curing of the silk screen. The traditional weaving technology has the following defects: the silk screen which is not sprayed is relatively soft, and the warp yarns and the weft yarns are not well fixed, so that the tension of the silk screen cannot be well controlled in the spraying process, the silk screen is extremely easy to deform, and after the spraying is finished, meshes formed by the warp yarns and the weft yarns which are fixed together deform, so that the transmittance and the tensile rate of the silk screen are influenced.
The inventor researches the metal wire mesh weaving technology for decades, and finds that the square mesh and ultrathin coating are important influence factors of the light transmittance of the wire mesh in the research process. The traditional weaving technology controls the weaving speed of a silk screen to be slow, about 10cm/min, and the minimum amount of powder sprayed by static electricity is 50-100 g/min, so that the surface of the woven net has a large amount of powder, the coating is thicker, and the longitude and latitude cross points of the net form balls.
The present application provides an integrated device for screen weaving and spraying, which is developed according to the inventor's metal weaving for many years, and referring to fig. 1, the device comprises a weaving machine 10, a first guide roller set 20, an electrostatic spraying mechanism 30, a curing oven 40, a second tension mechanism 50 and an external screen collecting mechanism 60. The loom 10 includes a frame and a screen weaving mechanism provided on the frame. The netting mechanism can adopt the prior art, the netting speed is controlled to be 28-50cm/min, and the silk screen output from the netting mechanism is connected into a structure of weaving and coating by the silk screen 100 output from the netting mechanism through the first guide roll group 20, the second tension mechanism 50 and the machine net collecting mechanism 60.
In the present embodiment, the same as in the conventional loom, the screen weaving mechanism is used to weave the warp and weft into the screen having the square hole structure; unlike conventional looms, the web output from the screen-weaving mechanism is not immediately rolled, but passes through the first guide roller set 20, the second tension mechanism 50, and is finally rolled at the outer screen-receiving mechanism 60. Wherein the electrostatic spraying mechanism 30 and the curing oven 40 are arranged between the first guide roller group 20 and the second tension mechanism 50. Specifically, the first guide roller group 20 and the second tension mechanism 50 form a constant tension mechanism; wherein, the first guide roller group 20 is arranged at one side of the weaving machine 10 and is used for conducting the net surface 100 output from the weaving mechanism, the second tension mechanism 50 is arranged side by side with the first tension mechanism 20 at a distance and comprises a second power roller 51 and a second guide roller 52, and the second tension mechanism 50 is used for tensioning the net surface 100 guided through the first guide roller group 20.
The electrostatic spraying mechanism 30 and the curing oven 40 are sequentially arranged between the first guide roller group 20 and the second tension mechanism 50, and the net surface tensioned between the first tension mechanism 20 and the second tension mechanism 50 sequentially passes through the electrostatic spraying mechanism 30 and the curing oven 40. The web 100 enters the electrostatic spray mechanism 30 and the curing oven 40 where a coating is formed on the surface of the web.
The off-machine take-up mechanism 60 is disposed on a side of the second tension mechanism 50 remote from the loom 10. The off-machine screen collecting mechanism 60 is used for winding the screen 100 after spraying and curing.
As an alternative embodiment, the electrostatic spraying mechanism 30 includes a spray booth 31 and an electrostatic spray gun 32 vertically extending into the spray booth; wherein the side wall of the spraying chamber 31 is symmetrically provided with a mesh opening 33 for the mesh surface 100 to pass through. Curing oven 40 includes an oven body having opposing sidewalls also provided with a screen opening (reference numeral not shown in FIG. 1) for facilitating passage of screen surface 100 therethrough.
In the above embodiment, the mesh surface 100 is tensioned all the time in the winding process, the mesh is not moved or deformed, and spraying and curing are realized in the winding process, so that mesh sizing is realized. The system integrating the net weaving and the spraying is compact in structure and saves working procedures, and more importantly, the formed silk screen has high light transmission and high elongation, the light transmission of the silk screen reaches more than 80%, and the elongation of the silk screen reaches more than 40%. The traditional silk screen is usually tensioned and stretched at least twice, the elongation rate is reduced to be below 10%, and the mesh is easy to deform and reduce the light transmittance due to the non-online tensioning with the mesh system.
As an alternative embodiment, the first guide roll group 20 comprises more than 2 first guide rolls, wherein at least one first guide roll is arranged at the same height as the wire passing opening. Specifically, the guide rollers may be arranged according to an actual scene, as shown in fig. 1, as an application scene, the first guide roller group 20 includes a pair of lower guide rollers 21 arranged close to the ground and an upper guide roller 23 arranged at the same height as the wire passing opening of the electrostatic spraying mechanism 30, and a pedal 22 for facilitating operation is arranged above the lower guide rollers 21. The pedals 22 facilitate adjustment and operation of the loom 10 side and the electrostatic spraying 20 side by the inspector. In other embodiments, more than 2 upper guide rollers may be provided, wherein the upper edge of the wire guide roller for the end wire guide in the first guide roller group 20 is disposed at the same height as the wire passing opening 33 of the electrostatic spraying mechanism 30. Of course, the first set of guide rollers 20 can also be provided with first powered rollers to adjust the web tension during web conduction.
The second tension mechanism 50 comprises a second power roller 51 and more than 2 second guide rollers 52, wherein at least one second guide roller 52 is arranged at the same height with the wire passing opening. The second guide roll 52 includes a guide roll for leading end web, which is disposed at the same height as the web passing opening of the curing oven 40.
Because the electrostatic spraying mechanism 30 and the screen passing opening of the curing oven 40 are arranged at the same height, the screen surface 100 is horizontally tensioned between the first guide roller group 20 and the second tension mechanism 50 by an upper guide roller 23 of the tail end guide screen and a second guide roller (reference numeral 52 in fig. 1) of the front end guide screen. The horizontally tensioned web 100 passes through the electrostatic spraying mechanism 30 to form a uniform, thin coating.
Based on the same inventive concept as the weaving system, the embodiment of the application also provides a high-light-transmission silk screen weaving process, which comprises a mesh weaving process, a spraying process, a curing process and a mesh collecting process. Weaving the stainless steel warp and weft into a net surface by a net weaving mechanism; the output net surface is tensioned by a constant tension mechanism, enters a spraying process and a curing process in sequence, and is finally wound by an external net collecting mechanism.
The process is described in detail below with reference to fig. 1.
In the mesh weaving process, stainless steel warps and wefts are woven into a mesh surface of a silk screen, and the formed mesh surface is sequentially tensioned by a constant tension mechanism. Wherein the constant tension mechanism comprises a first guide roller set 20 and a second tension mechanism 50. Wherein, the first guide roller group 20 is arranged at one side of the weaving machine 10 and is used for conducting the net surface 100 output from the weaving mechanism, and the second tension mechanism 50 comprises a second power roller 51, a second guide roller 52 and a net surface 100 which is used for tensioning and leading through the first guide roller group 20 with constant force.
The spraying process is based on an electrostatic spraying mechanism 30, and the electrostatic spraying mechanism 30 is disposed between the first guide roller group 20 and the second tension mechanism 50. The tensioned screen 100 is passed through the electrostatic spraying mechanism 30 to spray a plastic coating onto the surface of the screen.
The curing process is based on a curing oven 40 disposed between the first guide roll set 20 and the second tension mechanism 50, the curing oven 40 being disposed after the electrostatic spraying mechanism 30. The tensioned silk screen passes through the electrostatic spraying mechanism 30 and then continuously enters the curing oven 40, and the plastic coating is cured on the surface of the silk screen to form a fixed structure of the warp and the weft of the silk screen. The cured and shaped silk screen is wound on the external silk screen winding mechanism 60 through the silk screen of the second tension mechanism 50.
Controlling the weaving speed of the silk screen in the mesh weaving process to be 28-50cm/min for preparing the high-light-transmission silk screen; the staying time of the silk screen sprayed with the plastic coating in the curing process is 1.5-2.5 min. The ultra-thin coating layer is one of the important factors for forming the high light transmission screen, and in this embodiment, the coating thickness of the spraying process is 0.01-0.015 mm.
In order to realize the high-light-transmission silk screen weaving process of the embodiment, various systems can be matched. As a possible embodiment, a system for use with the process may employ the configuration shown in fig. 1.
As another embodiment, the present application further provides a high light transmission screen manufactured by using the above system or process. The wire mesh comprises a stainless steel wire mesh core and flame-retardant polyester coating sprayed and cured on the surface of the stainless steel wire mesh core; wherein the stainless steel wire mesh core is formed by weaving warps and wefts, the diameter of the warps and/or wefts is 0.1-0.2 mm, and the thickness of the flame-retardant polyethylene coating is 0.01-0.015 mm. The high-light-transmission silk screen of the embodiment has the stainless steel wire mesh core, so that the silk screen is tear-resistant and deformation-resistant, and the elongation can reach 40%; has fireproof, dustproof and antifouling coating, silk screen feeling and ageing resistance. Small wire diameter, thin coating and light transmittance of over 80 percent.
The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A high light transmission screen weaving system, comprising:
the weaving machine comprises a frame and a net weaving mechanism arranged on the frame;
the constant tension mechanism comprises a first guide roller set and a second tension mechanism; the first guide roller group is arranged on one side of the weaving machine and used for conducting the net surface output from the net weaving mechanism, and the second tension mechanism comprises a power roller, a second guide roller and a net surface which is used for tensioning and guiding the net surface through the first guide roller group;
the electrostatic spraying mechanism and the curing oven are sequentially arranged between the first guide roller set and the second tension mechanism, and the tensioned net surface sequentially passes through the electrostatic spraying mechanism and the curing oven;
the external net collecting mechanism is arranged on one side of the second tension mechanism, which is far away from the loom, and is synchronous with the linear velocity of a power roller of the second tension mechanism;
the net surface output by the net weaving mechanism is connected with the net drawing mechanism outside the machine through the constant tension mechanism to form a structure integrating weaving and coating.
2. The system of claim 1, wherein the electrostatic spraying mechanism and the curing oven are respectively provided with a mesh opening for the mesh surface to pass through, and each mesh opening is arranged at the same height.
3. The high light transmission screen weaving system of claim 2,
the first guide roller group comprises more than 2 first guide rollers, wherein at least one first guide roller is arranged at the same height with the screen passing port;
the second tension mechanism comprises the power roller and more than 2 second guide rollers, wherein at least one second guide roller is arranged at the same height with the mesh opening;
the screen surface horizontally penetrates through the electrostatic spraying mechanism and the curing oven by virtue of a first guide roller and a second guide roller which are arranged at the same height as the screen passing opening.
4. The high light transmission screen weaving system of claim 3 wherein the first guide roller set comprises at least one pair of lower guide rollers disposed adjacent to the ground and at least one upper guide roller disposed at the same height as the screen openings; wherein a pedal convenient for operation is arranged above the lower guide roller.
5. The high light transmission screen weaving system of any one of claims 1-4 wherein the off-machine screen collecting mechanism comprises a screen collecting motor and a screen collecting roller driven by the screen collecting motor, and a third guide roller adjusted in cooperation with the screen collecting roller.
6. A high light transmission silk screen weaving process is characterized by comprising the following steps:
weaving the stainless steel warp and weft into a net surface by a net weaving mechanism;
tensioning the output net surface by a constant tension mechanism, sequentially entering a spraying process and a curing process, and finally rolling by an external net collecting mechanism;
the constant tension mechanism comprises a first guide roller set and a second tension mechanism; the first guide roller group is arranged on one side of the net weaving mechanism and used for conducting the net surface output from the net weaving mechanism, and the second tension mechanism comprises a power roller, a second guide roller and a net surface which is used for tensioning and guiding the net surface through the first guide roller group under constant force;
the spraying process is based on an electrostatic spraying mechanism which is arranged between the first guide roller set and the second tension mechanism, wherein the tensioned screen surface passes through the electrostatic spraying mechanism and is sprayed with a plastic coating on the surface of the screen;
the curing process is based on a curing oven, the curing oven is arranged between the electrostatic spraying mechanism and the second tension mechanism, the tensioned mesh surface penetrates through the electrostatic spraying mechanism and then continuously enters the curing oven, and the plastic coating is cured on the surface of the silk screen to form a fixed structure of silk screen warps and wefts.
7. The high light transmission screen weaving process of claim 6 wherein the screen weaving mechanism has a screen surface weaving speed of 28-50 cm/min; the dwell time of the sprayed mesh surface in the curing process is 1.5-3 min.
8. The high light transmission screen weaving process according to claim 5, characterized in that the spraying process adopts flame retardant polyethylene coating, and the thickness of the coating sprayed on the screen surface is 0.01-0.015 mm.
9. A high light transmission screen, characterized in that it is produced using the system according to any one of claims 1 to 5 or the process according to any one of claims 6 to 8.
10. The high light transmission screen mesh of claim 9, wherein the high light transmission screen mesh comprises a stainless steel screen face and a flame retardant polyester powder coating sprayed and cured on the surface of the stainless steel screen face;
the stainless steel wire mesh core is formed by weaving warps and wefts, the diameter of the warps and/or the wefts is 0.1-0.2 mm, and the thickness of the flame-retardant polyester powder coating is 0.01-0.015 mm.
Priority Applications (1)
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| CN114054646B (en) | 2024-03-26 |
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