CN116394427A - Glass fiber infiltration device and infiltration method - Google Patents

Glass fiber infiltration device and infiltration method Download PDF

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Publication number
CN116394427A
CN116394427A CN202310429354.7A CN202310429354A CN116394427A CN 116394427 A CN116394427 A CN 116394427A CN 202310429354 A CN202310429354 A CN 202310429354A CN 116394427 A CN116394427 A CN 116394427A
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CN
China
Prior art keywords
infiltration
resin
glass fiber
ultrasonic
vacuum
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CN202310429354.7A
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Chinese (zh)
Inventor
杨兴专
赵强
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Liuzhi Sar Huaxing Tube Industry Products Co ltd
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Liuzhi Sar Huaxing Tube Industry Products Co ltd
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Priority to CN202310429354.7A priority Critical patent/CN116394427A/en
Publication of CN116394427A publication Critical patent/CN116394427A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B15/00—Pretreatment of the material to be shaped, not covered by groups B29B7/00 - B29B13/00
    • B29B15/08—Pretreatment of the material to be shaped, not covered by groups B29B7/00 - B29B13/00 of reinforcements or fillers
    • B29B15/10—Coating or impregnating independently of the moulding or shaping step
    • B29B15/12—Coating or impregnating independently of the moulding or shaping step of reinforcements of indefinite length
    • B29B15/122—Coating or impregnating independently of the moulding or shaping step of reinforcements of indefinite length with a matrix in liquid form, e.g. as melt, solution or latex
    • B29B15/125—Coating or impregnating independently of the moulding or shaping step of reinforcements of indefinite length with a matrix in liquid form, e.g. as melt, solution or latex by dipping
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B15/00—Pretreatment of the material to be shaped, not covered by groups B29B7/00 - B29B13/00
    • B29B15/08—Pretreatment of the material to be shaped, not covered by groups B29B7/00 - B29B13/00 of reinforcements or fillers
    • B29B15/10—Coating or impregnating independently of the moulding or shaping step
    • B29B15/12—Coating or impregnating independently of the moulding or shaping step of reinforcements of indefinite length
    • B29B15/14—Coating or impregnating independently of the moulding or shaping step of reinforcements of indefinite length of filaments or wires
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/06—Fibrous reinforcements only
    • B29C70/10—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres
    • B29C70/16—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres using fibres of substantial or continuous length
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/28—Shaping operations therefor
    • B29C70/40—Shaping or impregnating by compression not applied
    • B29C70/50—Shaping or impregnating by compression not applied for producing articles of indefinite length, e.g. prepregs, sheet moulding compounds [SMC] or cross moulding compounds [XMC]
    • B29C70/504—Shaping or impregnating by compression not applied for producing articles of indefinite length, e.g. prepregs, sheet moulding compounds [SMC] or cross moulding compounds [XMC] using rollers or pressure bands
    • B29C70/506—Shaping or impregnating by compression not applied for producing articles of indefinite length, e.g. prepregs, sheet moulding compounds [SMC] or cross moulding compounds [XMC] using rollers or pressure bands and impregnating by melting a solid material, e.g. sheet, powder, fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/28—Shaping operations therefor
    • B29C70/40—Shaping or impregnating by compression not applied
    • B29C70/50—Shaping or impregnating by compression not applied for producing articles of indefinite length, e.g. prepregs, sheet moulding compounds [SMC] or cross moulding compounds [XMC]
    • B29C70/52—Pultrusion, i.e. forming and compressing by continuously pulling through a die
    • B29C70/525—Component parts, details or accessories; Auxiliary operations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/28—Shaping operations therefor
    • B29C70/40—Shaping or impregnating by compression not applied
    • B29C70/50—Shaping or impregnating by compression not applied for producing articles of indefinite length, e.g. prepregs, sheet moulding compounds [SMC] or cross moulding compounds [XMC]
    • B29C70/52—Pultrusion, i.e. forming and compressing by continuously pulling through a die
    • B29C70/525—Component parts, details or accessories; Auxiliary operations
    • B29C70/528—Heating or cooling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/28—Shaping operations therefor
    • B29C70/54—Component parts, details or accessories; Auxiliary operations, e.g. feeding or storage of prepregs or SMC after impregnation or during ageing

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Composite Materials (AREA)
  • Textile Engineering (AREA)
  • Reinforced Plastic Materials (AREA)

Abstract

The invention discloses a glass fiber infiltration device and an infiltration method, and belongs to the technical field of manufacturing of composite material gas pipelines. The device comprises a heating mechanism, a sizing mechanism, a glue extruding mechanism and a vacuum ultrasonic infiltration mechanism which are sequentially arranged along the moving direction of glass fibers, wherein a controller is arranged on the vacuum ultrasonic infiltration mechanism. The sheet glass fibers are heated by the heating mechanism, and then the viscosity of the resin is reduced by heating the glass fibers, so that the fluidity of the resin is improved, the wettability and the infiltration speed of the resin among the glass fibers are further improved, and the purpose of improving the infiltration effect is achieved. When the sheet glass fiber enters the box body and bypasses the ultrasonic roller, the vacuum environment in the box body is favorable for enabling bubbles in the resin to escape, so that the defects of sand holes and the like caused by the fact that the bubbles stay in the resin are avoided, and the formed composite material pipe is ensured to have good corrosion resistance; meanwhile, the ultrasonic roller is utilized to accelerate the infiltration speed of the resin between the glass fibers so as to improve the infiltration effect.

Description

Glass fiber infiltration device and infiltration method
Technical Field
The invention relates to a glass fiber infiltration device and an infiltration method, and belongs to the technical field of manufacturing of fiber reinforced composite material gas pipelines.
Background
Fiber reinforced composite tubes are also known as glass fiber wrapped tubes. The glass fiber and its product are used as reinforcing material, unsaturated polyester resin, epoxy resin, etc. as high molecular component are used as basic material, and inorganic non-metal granular material of quartz sand, calcium carbonate, etc. is used as stuffing. The standard effective length of the pipe is 6m and 12m, and the manufacturing method comprises three steps of a fixed-length winding process, a centrifugal casting process and a continuous winding process. The products can be classified according to the technological method, the pressure grade PN and the rigidity grade SN of the products.
When a fiber-reinforced composite pipe is used as a gas drainage pipe, it is required to have a certain flame retardant and antistatic property, and therefore, a proper amount of carbon black, aluminum hydroxide, and the like are generally added to a resin for modification. The viscosity of the modified resin is increased, so that glass fibers are difficult to soak in the soaking process, and white spot defects are easy to cause; in addition, bubbles are inevitably incorporated into the resin during the process of stirring and mixing the resin with carbon black, aluminum hydroxide and the like, and these bubbles are difficult to overflow due to the high viscosity of the resin, and eventually cause defects in the pipe, resulting in a decrease in corrosion resistance and the like of the molded pipe.
The Chinese patent document with the publication number of CN217140979U discloses an improved high-speed wrapping fire-resistant mica tape sizing mechanism, which comprises a glue spraying component and a scraper, wherein the scraper is propped against mica paper of the mica tape, and the glue spraying component comprises a pressing roller with the bottom surface propped against the mica paper; the first rubber inlet pipe of the rubber spraying assembly is arranged on the feeding side of the pressing roller, and is characterized in that an ultrasonic roller in surface contact with the mica tape is arranged between the pressing roller and the scraper, and the ultrasonic roller is connected with the ultrasonic transducer. The improved high-speed wrapping fire-resistant mica tape sizing mechanism is sequentially provided with a first rubber inlet pipe, an ultrasonic roller and a scraper, the ultrasonic roller is utilized to accelerate the infiltration speed of adhesive solution between mica sheets, the infiltration effect is improved, and the mica tape meets the working condition requirement of high-speed wrapping.
However, when the sizing mechanism is applied to the manufacture of fiber reinforced composite material gas pipelines to impregnate glass fibers, the defects that the impregnating effect of the glass fibers needs to be further improved and bubbles in the resin are difficult to escape exist.
Disclosure of Invention
In order to solve the technical problems, the invention provides a glass fiber infiltration device and an infiltration method.
The invention is realized by the following technical scheme:
the utility model provides a glass fiber infiltration device, includes heating mechanism, glueing mechanism, crowded gluey mechanism and the vacuum ultrasonic infiltration mechanism that arranges in proper order along glass fiber direction of movement, be equipped with the controller on the vacuum ultrasonic infiltration mechanism.
The heating mechanism comprises a heating box and an air heater, wherein an air inlet is formed in one side of the heating box, a dust screen is arranged at the air inlet on the heating box, a plurality of exhaust holes are formed in a top plate of the heating box, the air heater is arranged in the heating box, an air outlet of the air heater is connected with the top plate of the heating box through an air homogenizing hopper, the shape and the size of the air homogenizing hopper are gradually expanded from bottom to top, a temperature sensor is arranged in the air homogenizing hopper, and the temperature sensor and the air heater are electrically connected with a controller.
The sizing mechanism comprises a bracket and a die head, wherein the bracket is provided with a resin storage box, the die head is positioned below the resin storage box and connected with the resin storage box through a connecting rod, the die head is communicated with the bottom of the resin storage box through a rubber outlet pipe, and a suction pump is arranged on the rubber outlet pipe and electrically connected with a controller.
The extruding mechanism comprises a recovery groove, a carrier roller and a compression roller, wherein the upper side of the recovery groove is provided with an opening, the top of the recovery groove is provided with two support plates side by side, two ends of the carrier roller are in one-to-one correspondence with the two support plates in a rotating connection manner, two ends of the compression roller are in one-to-one correspondence with the two support plates in a movable connection manner, and the compression roller is positioned on the upper side of the carrier roller.
Two square notch has all been seted up to the upper end of backup pad, and has all seted up the spout on the both sides wall of square notch, and the both ends of compression roller all rotate and be connected with the slider, and the slider one-to-one at compression roller both ends is equipped with the briquetting with square notch and spout sliding connection in two backup pads in the backup pad in the position corresponding with square notch, and the briquetting is connected with the slider through two pressure springs.
The vacuum ultrasonic infiltration mechanism comprises a box body and a vacuum pump, wherein a sheet inlet is formed in one side of the box body, a sheet outlet is formed in the opposite side of the sheet inlet on the box body, a vacuum gauge, an ultrasonic transducer and a plurality of ultrasonic rollers are arranged in the box body side by side, the ultrasonic rollers are connected with the ultrasonic transducer, the vacuum pump is arranged on the box body and communicated with the inside of the box body through a pipeline, and the vacuum gauge, the ultrasonic transducer and the vacuum pump are electrically connected with a controller.
The vacuum ultrasonic infiltration mechanism is provided with a visual detection system, and the visual detection system is electrically connected with the controller.
A method of impregnating a glass fiber impregnating apparatus comprising the steps of:
A. the starting device is used for starting gum dipping after the output temperature of the mechanism to be heated reaches a preset temperature and the vacuum degree in the vacuum ultrasonic infiltration mechanism reaches the preset vacuum degree;
B. the glass fibers are heated through the heating mechanism, resin is applied to the glass fibers through the sizing mechanism, redundant resin on the glass fibers is extruded through the extruding mechanism, and the infiltration speed of the resin among the glass fibers is increased through the vacuum ultrasonic infiltration mechanism;
C. and detecting whether white spots exist on the glass fiber through a visual detection system, and transmitting a detection result to a controller.
Before passing through the heating mechanism, the glass fibers are firstly arranged into sheets through a threading plate; the sizing mechanism extrudes the resin into a sheet shape and then applies the sheet to the glass fibers.
In the step C, when the visual detection system detects that white spots exist on the glass fibers, the controller controls the heating mechanism to increase the output temperature, controls the sizing mechanism to increase the resin amount applied to the glass fibers in unit time, or/and controls the vacuum ultrasonic infiltration mechanism to increase the ultrasonic vibration frequency.
The invention has the beneficial effects that:
1. the sheet glass fibers are heated by the heating mechanism, and then the viscosity of the resin is reduced by heating the glass fibers, so that the fluidity of the resin is improved, the wettability and the infiltration speed of the resin among the glass fibers are further improved, and the purpose of improving the infiltration effect is achieved.
2. When the sheet glass fiber passes through the position right below the die head, the suction pump gradually sucks the resin in the resin storage box into the die head, and provides a certain extrusion force for the original resin in the die head, and the resin is applied to the sheet glass fiber in a sheet shape after coming out of the die head, so that the sizing uniformity is good.
3. When the sheet glass fiber passes through between the compression roller and the carrier roller, the compression roller is matched with the carrier roller to extrude the sheet glass fiber under the action force of dead weight and the pressure spring, so that on one hand, the infiltration speed of resin between the glass fibers can be accelerated, and on the other hand, redundant resin on the glass fibers can be extruded, so that the glue application uniformity and infiltration effect are improved.
4. When the sheet glass fiber enters the box body and bypasses the ultrasonic roller, the vacuum environment in the box body is favorable for enabling bubbles in the resin to escape, so that the defects of sand holes and the like caused by the fact that the bubbles stay in the resin are avoided, and the forming tube is ensured to have good corrosion resistance; meanwhile, the ultrasonic roller is utilized to accelerate the infiltration speed of the resin between the glass fibers so as to improve the infiltration effect.
5. And detecting whether white spots exist on the glass fiber after the infiltration is finished through a visual detection system, and transmitting a detection result to a controller so as to take further countermeasures and improve the infiltration effect.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic view of a heating mechanism according to the present invention;
FIG. 3 is a cross-sectional view of the heating mechanism of the present invention;
FIG. 4 is a schematic view of the sizing mechanism of the present invention;
FIG. 5 is a schematic structural view of the glue squeezing mechanism of the present invention;
FIG. 6 is a schematic diagram of the assembled structure of the vacuum ultrasonic infiltration mechanism, controller and vision inspection system of the present invention;
FIG. 7 is a cross-sectional view of a vacuum ultrasonic infiltration mechanism of the present invention;
FIG. 8 is a schematic view of the structure of the glass fiber impregnated in the present invention.
In the figure: 1-heating mechanism, 10-heating box, 11-exhaust hole, 12-dust screen, 13-air heater, 14-air homogenizing hopper, 2-sizing mechanism, 20-bracket, 21-resin storage box, 22-suction pump, 23-connecting rod, 24-die head, 25-rubber outlet pipe, 3-rubber extruding mechanism, 30-recovery tank, 31-carrier roller, 32-supporting plate, 33-compression roller, 34-briquetting, 35-compression spring, 36-slider, 4-vacuum ultrasonic infiltration mechanism, 40-box, 41-sheet inlet, 42-vacuum pump, 43-sheet outlet, 44-ultrasonic roller, 45-ultrasonic transducer, 5-controller, 6-visual detection system.
Detailed Description
The technical solution of the present invention is further described below, but the scope of the claimed invention is not limited to the above.
As shown in fig. 1 to 8, the glass fiber infiltration device provided by the invention comprises a heating mechanism 1, a sizing mechanism 2, a glue extruding mechanism 3 and a vacuum ultrasonic infiltration mechanism 4 which are sequentially arranged along the moving direction of glass fibers, wherein a controller 5 is arranged on the vacuum ultrasonic infiltration mechanism 4. When the glass fiber resin impregnating machine is used, the glass fiber is heated by the heating mechanism 1, and then the viscosity of the resin is reduced by heating the glass fiber, so that the fluidity of the resin is improved, the impregnating speed of the resin among the glass fibers is increased, and the aim of improving the impregnating effect is fulfilled; applying resin to the glass fibers by the sizing mechanism 2; the extrusion effect of the glue extrusion mechanism 3 can accelerate the infiltration speed of resin among glass fibers on one hand, and can extrude redundant resin on the glass fibers on the other hand so as to improve the glue application uniformity and the glass fiber infiltration effect; the vacuum ultrasonic infiltration mechanism 4 provides a vacuum environment for the resin attached to the glass fibers, is favorable for escaping bubbles in the resin, ensures that the forming tube has good corrosion resistance, and simultaneously accelerates the infiltration speed of the resin between the glass fibers by utilizing the ultrasonic action so as to improve the infiltration effect.
The heating mechanism 1 comprises a heating box 10 and a hot air blower 13, an air inlet is formed in one side of the heating box 10, a dust screen 12 is arranged at the air inlet on the heating box 10, a plurality of exhaust holes 11 are formed in the top plate of the heating box 10, the hot air blower 13 is arranged in the heating box 10, an air outlet of the hot air blower 13 is connected with the top plate of the heating box 10 through a uniform air hopper 14, the shape and the size of the uniform air hopper 14 are gradually expanded from bottom to top, a temperature sensor is arranged in the uniform air hopper 14, and the temperature sensor and the hot air blower 13 are electrically connected with the controller 5. When the air heater is used, hot air generated by the air heater 13 enters the air homogenizing bucket 14, is uniformly blown to the sheet glass fibers through the exhaust holes 11, heats the sheet glass fibers, and detects the temperature in the air homogenizing bucket 14 through the temperature sensor.
The sizing mechanism 2 comprises a bracket 20 and a die head 24, wherein the bracket 20 is provided with a resin storage box 21, the die head 24 is positioned below the resin storage box 21, the die head 24 is connected with the resin storage box 21 through a connecting rod 23, the die head 24 is communicated with the bottom of the resin storage box 21 through a rubber outlet pipe 25, the rubber outlet pipe 25 is provided with a suction pump 22, and the suction pump 22 is electrically connected with the controller 5. When in use, the resin in the resin storage box 21 is gradually sucked into the die head 24 through the suction pump 22, a certain extrusion force is provided for the original resin in the die head 24, and the resin is applied to the sheet glass fiber in a sheet shape after coming out of the die head 24, so that the sizing uniformity is good.
The extruding mechanism 3 comprises a recovery groove 30, a carrier roller 31 and a pressing roller 33, wherein the upper side of the recovery groove 30 is opened, two supporting plates 32 are installed side by side at the top of the recovery groove 30, two ends of the carrier roller 31 are in one-to-one correspondence with the two supporting plates 32 and are in rotary connection, two ends of the pressing roller 33 are in one-to-one correspondence with the two supporting plates 32 and are in movable connection, and the pressing roller 33 is located on the upper side of the carrier roller 31.
Square notch has all been seted up to the upper end of two backup pad 32, and has all been seted up the spout on the both sides wall of square notch, and the both ends of compression roller 33 all rotate and are connected with slider 36, and slider 36 one-to-one and square notch and spout sliding connection on two backup pad 32 at compression roller 33 both ends, installs briquetting 34 in the position corresponding with square notch on the backup pad 32, and briquetting 34 is connected with slider 36 through two pressure springs 35. When in use, the pressure spring 35 is in a compressed state, when the sheet glass fiber passes through between the pressure roller 33 and the carrier roller 31, the pressure roller 33 is matched with the carrier roller 31 to extrude the sheet glass fiber under the dead weight and the acting force of the pressure spring 35, so that on one hand, the infiltration speed of resin between the glass fibers can be accelerated, and on the other hand, redundant resin on the glass fibers can be extruded, so that the glue applying uniformity and infiltration effect are improved.
The vacuum ultrasonic infiltration mechanism 4 comprises a box 40 and a vacuum pump 42, wherein a sheet inlet 41 is formed in one side of the box 40, a sheet outlet 43 is formed in the opposite side of the sheet inlet 41 in the box 40, a vacuum gauge, an ultrasonic transducer 45 and a plurality of ultrasonic rollers 44 are installed in the box 40 side by side, the ultrasonic rollers 44 are connected with the ultrasonic transducer 45, the vacuum pump 42 is installed on the box 40 and is communicated with the inside of the box 40 through a pipeline, and the vacuum gauge, the ultrasonic transducer 45 and the vacuum pump 42 are all electrically connected with the controller 5. When the forming tube is used, the vacuum degree in the box body 40 is detected through the vacuum gauge, the box body 40 is vacuumized through the vacuum pump 42, so that the air pressure in the box body 40 is greatly reduced, namely the air pressure difference between the air bubbles in the resin and the internal environment of the box body 40 is increased, the air bubbles in the resin can escape easily, the defects of sand holes and the like caused by the fact that the air bubbles stay in the resin are avoided, and the forming tube is ensured to have good corrosion resistance; meanwhile, the ultrasonic roller 44 is utilized to accelerate the infiltration speed of the resin between the glass fibers so as to improve the infiltration effect.
The vacuum ultrasonic infiltration mechanism 4 is provided with a visual detection system 6, and the visual detection system 6 is electrically connected with the controller 5. After the sheet glass fiber comes out of the box 40, detecting whether the sheet glass fiber has white spot defects or not by a visual detection system 6, and transmitting the detection result to a controller 5 so that the whole device forms closed-loop control; the vision inspection system 6 includes a light source, a CCD camera, an image acquisition card, an industrial computer, and a controller a, which are conventional techniques and will not be described in detail herein.
A method of impregnating a glass fiber impregnating apparatus comprising the steps of:
A. the device is started, and after the output temperature of the mechanism 1 to be heated reaches a preset temperature and the vacuum degree in the vacuum ultrasonic infiltration mechanism 4 reaches the preset vacuum degree, gum dipping is started;
B. the glass fibers are heated through the heating mechanism 1, resin is applied to the glass fibers through the sizing mechanism 2, redundant resin on the glass fibers is extruded through the extruding mechanism 3, and the infiltration speed of the resin among the glass fibers is accelerated through the vacuum ultrasonic infiltration mechanism 4;
C. the presence or absence of white spots on the glass fibers is detected by the visual detection system 6 and the detection result is transmitted to the controller 5.
Before passing through the heating mechanism 1, the glass fibers are firstly arranged into sheets through a threading plate; the sizing mechanism 2 extrudes the resin into a sheet and applies it to the glass fibers. When the glass fiber threading device is used, the threading plate (not shown in the drawing) is provided with a plurality of threading holes in a processing mode at the same horizontal height, and the sheet glass fibers can be formed after the glass fibers correspondingly pass through the threading holes.
In the step C, when the visual detection system 6 detects that white spots exist on the glass fibers, the controller 5 controls the heating mechanism 1 to increase the output temperature, controls the sizing mechanism 2 to increase the amount of resin applied to the glass fibers in unit time, or/and controls the vacuum ultrasonic infiltration mechanism 4 to increase the ultrasonic vibration frequency. When the glass fiber heating device is used, the heating mechanism 1 can increase the output temperature, so that the temperature of the glass fibers and the resin can be further increased, the fluidity of the resin is improved, and the infiltration speed of the resin between the glass fibers can be increased, so that the white spot defect on the glass fibers can be reduced or eliminated. The sizing mechanism 2 increases the amount of resin applied to the glass fibers in unit time, and the combination of the action of the sizing mechanism 3 and the vacuum ultrasonic infiltration mechanism 4 on the glass fibers helps to reduce or eliminate white spot defects on the glass fibers. The vacuum ultrasonic infiltration mechanism 4 can increase the ultrasonic vibration frequency and accelerate the infiltration speed of the resin between the glass fibers so as to reduce or eliminate the white spot defect on the glass fibers.
The invention relates to a glass fiber infiltration device, which has the following working principle:
when a plurality of glass fibers are finished into sheets through the threading plate, hot air generated by the hot air blower 13 continuously enters the air homogenizing hopper 14 when the sheet glass fibers pass through the heating mechanism 1, and then the hot air is uniformly blown to the sheet glass fibers through the exhaust holes 11 so as to heat the sheet glass fibers, and then the viscosity of the sheet glass fibers is reduced by heating the resin through the glass fibers so as to improve the fluidity of the resin, further improve the wettability and the infiltration speed of the resin among the glass fibers, and achieve the aim of improving the infiltration effect.
When the sheet glass fiber passes right below the die head 24, the suction pump 22 gradually sucks the resin in the resin storage box 21 into the die head 24, provides a certain extrusion force for the original resin in the die head 24, and the resin is applied to the sheet glass fiber in a sheet shape after coming out of the die head 24, so that the sizing uniformity is good.
When the sheet glass fiber passes through between the press roller 33 and the carrier roller 31, the press roller 33 is matched with the carrier roller 31 to extrude the sheet glass fiber under the dead weight and the acting force of the pressure spring 35, so that on one hand, the infiltration speed of resin between the glass fibers can be increased, and on the other hand, the redundant resin on the glass fibers can be extruded, so that the glue applying uniformity and the infiltration effect are improved.
When the sheet glass fiber enters the box body 40 and bypasses the ultrasonic roller 44, the vacuum environment in the box body 40 is beneficial to the escape of bubbles in the resin, so that the defects of sand holes and the like caused by the stay of the bubbles in the resin are avoided, and the forming tube is ensured to have good corrosion resistance; meanwhile, the ultrasonic roller 44 is utilized to accelerate the infiltration speed of the resin between the glass fibers so as to improve the infiltration effect.
The presence or absence of white spots on the glass fibers which have been impregnated is detected by the visual detection system 6, and the detection result is transmitted to the controller 5, so that further countermeasures are taken to improve the impregnation effect.

Claims (10)

1. The utility model provides a glass fiber infiltration device which characterized in that: the glass fiber sizing machine comprises a heating mechanism (1), a sizing mechanism (2), a sizing mechanism (3) and a vacuum ultrasonic infiltration mechanism (4) which are sequentially arranged along the moving direction of glass fibers, wherein a controller (5) is arranged on the vacuum ultrasonic infiltration mechanism (4).
2. The glass fiber infiltration apparatus of claim 1, wherein: the heating mechanism (1) comprises a heating box (10) and a hot air blower (13), wherein an air inlet is formed in one side of the heating box (10), a dust screen (12) is arranged at the air inlet on the heating box (10), a plurality of exhaust holes (11) are formed in the top plate of the heating box (10), the hot air blower (13) is arranged in the heating box (10), an air outlet of the hot air blower (13) is connected with the top plate of the heating box (10) through a uniform air hopper (14), the shape and the size of the uniform air hopper (14) are gradually expanded from bottom to top, a temperature sensor is arranged in the uniform air hopper (14), and the temperature sensor and the hot air blower (13) are electrically connected with the controller (5).
3. The glass fiber infiltration apparatus of claim 1, wherein: the sizing mechanism (2) comprises a support (20) and a die head (24), wherein a resin storage box (21) is arranged on the support (20), the die head (24) is located below the resin storage box (21), the die head (24) is connected with the resin storage box (21) through a connecting rod (23), the die head (24) is communicated with the bottom of the resin storage box (21) through a rubber outlet pipe (25), a suction pump (22) is arranged on the rubber outlet pipe (25), and the suction pump (22) is electrically connected with the controller (5).
4. The glass fiber infiltration apparatus of claim 1, wherein: the glue squeezing mechanism (3) comprises a recovery groove (30), a carrier roller (31) and a pressing roller (33), wherein the upper side of the recovery groove (30) is provided with an opening, the top of the recovery groove (30) is provided with two supporting plates (32) side by side, two ends of the carrier roller (31) are in one-to-one correspondence with the two supporting plates (32) to be rotationally connected, two ends of the pressing roller (33) are in one-to-one correspondence with the two supporting plates (32) to be movably connected, and the pressing roller (33) is located on the upper side of the carrier roller (31).
5. The glass fiber infiltration apparatus of claim 4, wherein: square notch has all been seted up to the upper end of two backup pad (32), and has all been seted up the spout on the both sides wall of square notch, and the both ends of compression roller (33) all rotate and are connected with slider (36), and slider (36) one-to-one and square notch and spout sliding connection on two backup pad (32) at compression roller (33) both ends are equipped with briquetting (34) in the position corresponding with square notch on backup pad (32), and briquetting (34) are connected with slider (36) through two pressure springs (35).
6. The glass fiber infiltration apparatus of claim 1, wherein: the vacuum ultrasonic infiltration mechanism (4) comprises a box body (40) and a vacuum pump (42), wherein a sheet inlet (41) is formed in one side of the box body (40), a sheet outlet (43) is formed in the opposite side of the sheet inlet (41) on the box body (40), a vacuum gauge, an ultrasonic transducer (45) and a plurality of ultrasonic rollers (44) are arranged side by side in the box body (40), the ultrasonic rollers (44) are connected with the ultrasonic transducer (45), the vacuum pump (42) is arranged on the box body (40) and is communicated with the inside of the box body (40) through a pipeline, and the vacuum gauge, the ultrasonic transducer (45) and the vacuum pump (42) are electrically connected with the controller (5).
7. The glass fiber infiltration apparatus of claim 1, wherein: the vacuum ultrasonic infiltration mechanism (4) is provided with a visual detection system (6), and the visual detection system (6) is electrically connected with the controller (5).
8. A method for infiltrating a glass fiber infiltration device is characterized in that: the method comprises the following steps:
A. the starting device is used for starting gum dipping after the output temperature of the mechanism (1) to be heated reaches a preset temperature and the vacuum degree in the vacuum ultrasonic infiltration mechanism (4) reaches the preset vacuum degree;
B. the glass fiber is heated through the heating mechanism (1), resin is applied to the glass fiber through the sizing mechanism (2), redundant resin on the glass fiber is extruded through the extruding mechanism (3), and the infiltration speed of the resin among the glass fibers is accelerated through the vacuum ultrasonic infiltration mechanism (4);
C. detecting whether white spots exist on the glass fiber through a visual detection system (6), and transmitting the detection result to a controller (5).
9. The method for impregnating a glass fiber impregnating device according to claim 8, wherein: before passing through the heating mechanism (1), the glass fiber is firstly arranged into a sheet shape through a threading plate; the sizing mechanism (2) extrudes the resin into a sheet shape and then applies the sheet-shaped resin onto the glass fibers.
10. The method for impregnating a glass fiber impregnating device according to claim 8, wherein: in the step C, when the visual detection system (6) detects that white spots exist on the glass fibers, the controller (5) controls the heating mechanism (1) to increase the output temperature, controls the sizing mechanism (2) to increase the resin amount applied to the glass fibers in unit time, or/and controls the vacuum ultrasonic infiltration mechanism (4) to increase the ultrasonic vibration frequency.
CN202310429354.7A 2023-04-20 2023-04-20 Glass fiber infiltration device and infiltration method Pending CN116394427A (en)

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Application Number Priority Date Filing Date Title
CN202310429354.7A CN116394427A (en) 2023-04-20 2023-04-20 Glass fiber infiltration device and infiltration method

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CN116394427A true CN116394427A (en) 2023-07-07

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117656540A (en) * 2023-11-28 2024-03-08 明光瑞智电子科技有限公司 Preparation method and preparation equipment of halogen-free high Tg low-loss resin composition

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117656540A (en) * 2023-11-28 2024-03-08 明光瑞智电子科技有限公司 Preparation method and preparation equipment of halogen-free high Tg low-loss resin composition

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