CN104943118A - Production system and production method for glass fiber reinforced composite material - Google Patents
Production system and production method for glass fiber reinforced composite material Download PDFInfo
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- CN104943118A CN104943118A CN201510354302.3A CN201510354302A CN104943118A CN 104943118 A CN104943118 A CN 104943118A CN 201510354302 A CN201510354302 A CN 201510354302A CN 104943118 A CN104943118 A CN 104943118A
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- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/15—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor incorporating preformed parts or layers, e.g. extrusion moulding around inserts
- B29C48/154—Coating solid articles, i.e. non-hollow articles
Abstract
The invention discloses a production system and a production method for a glass fiber reinforced composite material. The system comprises a raw material supply device, an upper-order double-screw extrusion machine, a long-glass-fiber supply device, a lower-order double-screw extrusion machine, a length-fixed cutting conveying device and an electrical control system controlling the devices to run. The input end of the raw material supply device receives raw materials, and the output end of the raw material supply device is connected with the input end of the upper-step double-screw extrusion machine; the output end of the upper-step double-screw extrusion machine and the output end of the long-glass-fiber supply device are both connected with the input end of the low-order double-screw extrusion machine; the output end of the lower-step double-screw extrusion machine is connected with the input end of the length-fixed cutting conveying device; and the output end of the length-fixed cutting conveying device is connected with downstream forming equipment. The production system of the glass fiber reinforced composite material is a whole continuous production device; and according to the production method, a middle semi-finished product link is removed, the production cost is greatly saved, and the system has the good application prospect.
Description
Technical field
The invention belongs to glass production field, be specifically related to a kind of glass fibre reinforced composite material production system and production method.
Background technology
Fiber glass thermoplastics, appears at 20 middle of century, and through the development of more than ten years, fiber glass thermoplastics market annual growth is about 5%, has exceeded the growth rate of glass fiber reinforcement solidity plastics.
Fiber glass thermoplastics is a kind of composite of light-high-strength, glass fibre is generally 20% ~ 50%, matrix used material generally has polypropylene, polyethylene, polystyrene, polyamide, Merlon, ABS, PET, PBT etc., this composite has good stretching, bending, modulus of elasticity in comperssion and creep-resistant property, dimensionally stable, good processability, molding cycle are short, production efficiency is high, have been widely used in department and the industries such as automobile, machinery, electrical equipment, building, boats and ships, space flight.In automobile product is produced, goods are generally bumper, mud guard, hood, instrument board, car door, backrest, warming machine impeller etc.; In electric and electronic and information technology, in order to manufacture instrument case, terminal box, television rear cover, fan blade etc.; In chemical anticorrosion, fiberglass reinforced plastics is used as basin, pipeline, interior pipe etc.
The production technology (as injection molding process etc.) of traditional glass fibre reinforced composite material is two step method production technology, first go out polymer/glass fiber composite material particle by manufacture of materials manufacturer production, end article is made into again by the mold pressing of shaping producer, injection moulding, owing to there is half-finished intermediate link in this kind of traditional handicraft, cause production and processing cost, cost of wheeling, semi-finished product carrying cost higher, simultaneously owing to declining very severe through twice fusion plastification chamber Length of Glass Fiber, in end article, the average length of glass is less than 2mm more, strengthens, toughening effect is limited.
Summary of the invention
In order to solve the deficiencies in the prior art, the invention provides a kind of glass fibre reinforced composite material production system and production method, this system is one-step method complete production unit, eliminate intermediate link, than the parts low price 30% ~ 40% that conventional pellets injection molding technique is produced, special two rank twin screw extrusion process and die cuts design simultaneously makes the length of glass in goods reach more than 10mm, than the parts performance boost 25% ~ 40% that conventional particles injection molding process is produced, have a good application prospect, be worthy to be popularized.
For solving the problem, the present invention specifically by the following technical solutions:
A kind of glass fibre reinforced composite material production system, it is characterized in that, comprise for storing, the raw material feed device of transferring raw material, complete raw materials melt, the upper rank double screw extruder of mixing formation melt, the roving glass fiber feedway of roving glass fiber is provided, roving glass fiber for being provided by roving glass fiber feedway is trimmed to appropriate length and realizes coated by the roving glass fiber after shearing and the melt in the double screw extruder of upper rank, equally distributed lower rank double screw extruder, the melt material strip that lower rank double screw extruder is extruded is sheared, be delivered to the fixed length cutting conveying device of downstream former and control raw material feed device, upper rank double screw extruder, roving glass fiber feedway, the electric control system of lower rank double screw extruder and the running of fixed length cutting conveying device, the input of described raw material feed device accepts raw material, the output of described raw material feed device is connected with the input of upper rank double screw extruder, the output of described upper rank double screw extruder, the output of roving glass fiber feedway is all connected with the input of lower rank double screw extruder, the output of described lower rank double screw extruder is connected with fixed length cutting conveying device input, the output of described fixed length cutting conveying device is connected with downstream former.Automatic by raw material feed device, accurately by the double screw extruder of supreme for feedstock transportation rank, through the double screw extruder melting of upper rank, mixing rear formation melt, the roving glass fiber of roving glass fiber feedway supply simultaneously, and jointly enter in the double screw extruder of lower rank with melt, mix in melt after lower rank double screw extruder is sheared, fixed length cutting conveying device is extruded into again by lower rank double screw extruder, by fixed length cutting conveying device by the cutting carrying out nominal length needed for product, and be delivered to downstream former as shaping in moulding press etc., whole system is controlled by the electric control system coordinating and unifying, automaticity is high, and precision is high, product specification controls unified, electric control system gathers various data, and human-computer interaction interface is provided, various information is processed in real time, achieve automation and information system management, the object of information centralization process.
Aforesaid a kind of glass fibre reinforced composite material production system, it is characterized in that, described raw material feed device comprises the vacuum charging device and weight-loss type electronic measurement drawing-in device that are connected, described vacuum charging device comprises the pulp-collecting box for receiving packaging Raw, utilize the vacuum feeder of vacuum suction raw material, store the pellet feed supplement storehouse of the raw material that vacuum feeder adsorbs and store the auxiliary agent feed supplement storehouse of auxiliary agent, material sucking port is furnished with bottom described pulp-collecting box, and be connected with vacuum feeder by pipeline, the bottom of described vacuum feeder is connected with pellet feed supplement storehouse, namely vacuum feeder discharging opening is connected with pellet feed supplement storehouse charging aperture, feed supplement bin discharge port external is connected by soft pipeline and is connected with the weighing silo charging aperture of weight-loss type electronic measurement drawing-in device, described weight-loss type electronic measurement drawing-in device comprises pellet weight-loss metering feeding machine, small powder weight-loss metering feeding machine and blanking box, described pellet weight-loss metering feeding machine is weighed to the pellet in pellet feed supplement storehouse and is fed in blanking box, described small powder weight-loss metering feeding machine weighs the auxiliary agent in auxiliary agent feed supplement storehouse and feeds in blanking box, described blanking box is arranged on the feed openings of rank double screw extruder feeding machine barrel.Each raw material first feeds in pulp-collecting box, vacuum feeding principle is utilized to be delivered to the pellet feed supplement storehouse of each correspondence by vacuum feeder, complete the conveying to raw material and memory function, the raw material of each component is fed in upper rank double screw extruder in setting ratio by continuous uniform by small powder weight-loss metering feeding machine by pellet weight-loss metering feeding machine, auxiliary agent more afterwards, ensure that the stability of product quality, it achieves automation and high weighing precision, dynamic accuracy ± 0.5%.
Aforesaid a kind of glass fibre reinforced composite material production system, it is characterized in that, described upper rank double screw extruder comprises the first main motor, first high moment of torsion reduction box, first screw rod, first machine barrel, exhaust apparatus and connector, described first main motor is connected with the first screw rod by the first high moment of torsion reduction box, described first screw rod is located in the first machine barrel, described exhaust apparatus is located on the first machine barrel, adopt nature exhaust or vacuumizing and exhausting, one end of described connector connects the discharge end of the first machine barrel, the other end connects the charging aperture of lower rank double screw extruder.Upper rank double screw extruder major function be to each raw material heat make its melting and by the interaction of the first screw rod and the first machine barrel further mixing make each component disperses fully, be evenly distributed, finally form the good melt of plasticizing.
Aforesaid a kind of glass fibre reinforced composite material production system, it is characterized in that, described roving glass fiber feedway comprises the roving glass fiber conveying device and roving glass fiber dividing sinker profit yarn feeding device that are connected, described roving glass fiber conveying device comprises glass platform, glass support, tachogenerator and glass fiber pipe, described glass platform is fixed on bottom surface, described glass props up the top and one connection that are set up in glass platform, glass support is provided with some through holes for guiding glass to pass through, the tachogenerator that each through hole correspondence is arranged, described tachogenerator is positioned at glass platform upper, by four sensor support points, the corresponding tachogenerator of every root glass fiber pipe, the entrance of glass fiber pipe is just to described through hole, outlet and the dividing sinker of described glass fiber pipe moisten yarn feeding device and are connected, glass support upper horizontal distribution 30 ~ 60 infrared tachogenerators, each infrared tachogenerator is by 1 bundle glass, then glass enters glass fiber pipe by traction again, configuration electric control box and the chain control of main frame PLC, described roving glass fiber dividing sinker profit yarn feeding device comprises dividing sinker frame, dividing sinker profit yarn feeding device and transmission device, described dividing sinker frame is fixed on the double screw extruder of lower rank, and be connected with the glass fiber pipe of roving glass fiber conveying device, described dividing sinker frame is fixed with dividing sinker profit yarn feeding device and transmission device, described dividing sinker profit yarn feeding device comprises dials creel and roller, roller is arranged from top to bottom successively, dial to form with described transmission device after the end of creel utilizes connecting rod to connect and be connected, the glass carried by glass fiber pipe dial move back and forth between creel and roller, described actuator drives roller motion, roving glass fiber dividing sinker profit yarn feeding device is used for multiply boundling glass being sieved into tiny yarn fibre and heating these yarn fibres, improve effect of impregnation when glass and polymeric melt contacts, to promote glass degree of scatter in the polymer.
Aforesaid a kind of glass fibre reinforced composite material production system, it is characterized in that, described lower rank double screw extruder comprises the second main motor, the second high moment of torsion reduction box, the second screw rod, the second machine barrel and adjustable nose, described second main motor is connected with the second screw rod by the second high moment of torsion reduction box, described second screw rod is located in the second machine barrel, described adjustable nose is installed on the discharge outlet of lower rank double screw extruder, described adjustable nose adopts upper and lower Hough block combiner, and wherein lower module connects servo hydraulic system.What lower rank double screw extruder completed is by the molten mass material of thermoplastic composite material and glass coated, appropriate length is trimmed to glass and makes it be evenly distributed in melt, coordinate with upper rank double screw extruder and form two rank double screw extruder, can better according to the flexible adjusting process parameter of the manufacturing technique requirent of different goods.
Aforesaid a kind of glass fibre reinforced composite material production system, it is characterized in that, described fixed length cutting conveying device comprises fixed-length cutting device, conveying device and attemperator, described fixed-length cutting device is used for the melt material strip that lower rank double screw extruder is extruded to cut into material block by product needed length, described conveying device is used for the material block after being sheared by fixed-length cutting device and is delivered to downstream former, and described conveying device is provided with attemperator.
Aforesaid a kind of glass fibre reinforced composite material production system, it is characterized in that, described vacuum feeder is set to 3-4 platform, conveying capacity is 400 ~ 1000kg/h, described pellet feed supplement storehouse is set to 3-5 platform, volume is 0.3 ~ 1m3, described pellet feed supplement storehouse is provided with level detector, lower level detector and feed opening butterfly valve, and it is chain with alarm, described pellet weight-loss metering feeding machine is set to 2-3 platform, feeding capacity 100 ~ 500kg/h, dynamic accuracy ± 0.5%, described small powder weight-loss metering feeding machine is set to 1, feeding capacity 1 ~ 5kg/h, dynamic accuracy ± 0.5%, described blanking box by blanking pipe respectively with pellet weight-loss metering feeding machine, small powder weight-loss metering feeding machine is connected.
Aforesaid a kind of glass fibre reinforced composite material production system, it is characterized in that, described first main motor adopts alternating current generator or direct current generator, rotating speed adopts AC converter or DC speed regulator to regulate, described first main motor output shaft is connected with the first high moment of torsion reduction box input shaft by the first shaft coupling, first high moment of torsion reduction gearbox output shaft is connected with the first screw shaft, first main motor power is 90 ~ 200KW, described first high moment of torsion reduction box adopts parallel triple axle structure, gearratio i is 3 ~ 5, output speed 300 ~ 600RPM, described first screw rod is by the first conveying spiral shell block, first mixing spiral shell block, first mediates spiral shell block, the tandem permutation and combination structure of the first damping block and the first derotation spiral shell block composition, integrated suspension is in the first machine barrel, first screw rod rotated versions is twin-screw engagement type rotating Vortex, first screw slenderness ratio L/D is 36:1 ~ 48:1, first outer screw diameter is 61.5 ~ 94.5mm, described first machine barrel is composed in series by 8 ~ 15 joint the first cylindrical shells, be fixed on lathe bed by support, described first machine barrel draw ratio L/D is 36:1 ~ 48:1, often save the first cylindrical shell and comprise the first housing and the first liner, first housing adopts 45# steel to be base material, built-in cyclic water channel is for reducing the first barrel temperature, outside parcel electric heater is for heating the material in the first machine barrel, first liner is that " ∞ " structure adopts high-quality antifriction alloy through heat treatment, first cylinder bore is 62 ~ 95mm, the exhaust chamber of described exhaust apparatus is installed on machine barrel, be connected with water ring vacuum pump by discharge duct.
Aforesaid a kind of glass fibre reinforced composite material production system, it is characterized in that, described glass platform adopts steel construction, described tachogenerator is 30-60, described glass fiber pipe material is wear-resisting enhanced plastic pipe, quantity is 30 ~ 60, described dividing sinker frame adopts steel construction, described roller surface is coated with hard, wear-resistant alloy, described roller is with heating function, and described transmission device comprises crankshaft disk and reducing motor, and one end of described crankshaft disk is connected with reducing motor, the other end is connected with described connecting rod, and reducing motor power is 1.5 ~ 3KW.
Aforesaid a kind of glass fibre reinforced composite material production system, it is characterized in that, described second main motor adopts alternating current generator or direct current generator, rotating speed adopts AC converter or DC speed regulator to regulate, second main motor output shaft is connected with the second high moment of torsion reduction box input shaft by the second shaft coupling, second high moment of torsion reduction gearbox output shaft is connected with the second screw shaft, second main motor power is 90 ~ 160KW, described second high moment of torsion reduction box adopts parallel triple axle structure, gearratio i is 3 ~ 5, output speed is 50 ~ 300RPM, described second screw rod is by the second conveying spiral shell block, second mixing spiral shell block, second mediates spiral shell block, the tandem permutation and combination structure of the second damping block and the second derotation spiral shell block composition, its integrated suspension is in the second machine barrel, second screw rod rotated versions is twin-screw engagement type rotating Vortex, second screw slenderness ratio L/D is 12:1 ~ 20:1, second outer screw diameter is 61.5 ~ 94.5mm, described second machine barrel is composed in series by 8 ~ 15 joint the second cylindrical shells, be fixed on lathe bed by support, described second machine barrel draw ratio L/D is 12:1 ~ 20:1, often save the second cylindrical shell and comprise the second housing and the second liner, second housing adopts 45# steel to be base material, built-in cyclic water channel is for reducing the second barrel temperature, outside parcel electric heater is for heating the material in the second machine barrel, second liner is that " ∞ " structure adopts high-quality antifriction alloy through heat treatment, second cylinder bore is 62 ~ 95mm, described adjustable nose is with addition of thermal, be installed on machine barrel discharge end, be connected with the conveying device of fixed length cutting conveying device.
The production method of aforesaid a kind of glass fibre reinforced composite material production system, is characterized in that, comprise the following steps:
Step (1), pours into pulp-collecting box by raw material from packaging bag;
Step (2), the raw material in pulp-collecting box is sucked in pellet feed supplement storehouse by vacuum feeder, meanwhile, in auxiliary agent feed supplement storehouse, pours auxiliary agent into;
Step (3), weight-loss metering mode is adopted to fall into upper rank double screw extruder through blanking box by pellet weight-loss metering feeding machine, small powder weight-loss metering feeding machine the auxiliary agent in the raw material in pellet feed supplement storehouse, auxiliary agent feed supplement storehouse, in the double screw extruder of upper rank, its melting is made to heating raw materials, and by screw rod further mixing make each component disperses fully, be evenly distributed, finally form the good melt of plasticizing;
Step (4), utilizes roving glass fiber conveying device to deposit multireel glass and makes each bundle glass separate through roving glass fiber dividing sinker profit yarn feeding device, original per share glass is dispersed into tiny yarn fine, and the yarn fibre tiny to these heating;
Step (5), by in the double screw extruder of fine for yarn tiny in the melt in step (3), step (4) common input lower rank, complete in the double screw extruder of lower rank to the shearing of tiny yarn fibre and and the Homogeneous phase mixing, coated of melt, and regulated the size of the melt material strip extruded by the adjustable nose of lower rank double screw extruder;
Step (6), cuts into the length of product needed, and is delivered to downstream former through conveying device through fixed-length cutting device by the melt material strip in step (5).
Beneficial effect of the present invention, a kind of glass fibre reinforced composite material production system provided by the invention and production method, have following beneficial effect:
(1) automatic charging position device, lower level detector and feed opening butterfly valve is provided with in pellet feed supplement storehouse in raw material feed device, control chainly to complete automatic charging, feed supplement by PLC, adopt weight-loss type electronic measurement drawing-in device with 0.3 ~ 0.5% precision by polymer raw material and auxiliary agent metering feeding upper rank double screw extruder;
(2) two steps type double screw extruder is adopted, what upper rank double screw extruder completed is the mixing of glass fibre reinforced composite material, what lower rank double screw extruder completed is by the molten mass material of glass fibre reinforced composite material and glass coated, appropriate length is trimmed to glass and makes it be evenly distributed in melt, adopt two steps type double screw extruder can better according to the flexible adjusting process parameter of the manufacturing technique requirent of different goods;
(3) roving glass fiber conveying device has tachogenerator to monitor to one yarn fibre every, automatically estimates the fine flow of yarn, reports to the police to the fine crack conditions of yarn simultaneously;
(4) original per share yarn fibre is dispersed into tiny yarn fibre by roving glass fiber dividing sinker profit yarn feeding device, fine coated by melt material of the tiny yarn of the every root of such guarantee, dividing sinker roller with heating function, make yarn fine enter melt in conjunction with time heated, yarn fibre is better combined with the interface of melt;
(5) adjustable nose adopts upper and lower Hough block combiner, and lower module connects servo hydraulic system, installing the discharge outlet with lower rank double screw extruder, for regulating the size of melt material strip, and making it keep the homogeneity of size.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of glass fibre reinforced composite material production system of the present invention
Fig. 2 is the process chart of a kind of glass fibre reinforced composite material production system of the present invention.
Reference numeral implication is as follows:
1: raw material feed device; 11: pulp-collecting box; 12: vacuum feeder; 13: pellet feed supplement storehouse; 14: pellet weight-loss metering feeding machine; 15: small powder weight-loss metering feeding machine; 16: blanking box; 2: upper rank double screw extruder; 21: the first main motors; 22: the first high moment of torsion reduction boxes; 23: the first machine barrels; 24: exhaust apparatus; 25: connector; 3: roving glass fiber feedway; 31: glass platform; 32: tachogenerator; 33: glass fiber pipe; 34: dividing sinker frame; 35: dividing sinker profit yarn feeding device; 36: transmission device; 4: lower rank double screw extruder; 41: the second main motors; 42: the second high moment of torsion reduction boxes; 43: the second machine barrels; 44: adjustable nose; 5: fixed length cutting conveying device; 51: fixed-length cutting device; 52: conveying device; 53: attemperator; 6: electric control system.
Detailed description of the invention
Below in conjunction with accompanying drawing, the invention will be further described.
As shown in Figure 1, a kind of glass fibre reinforced composite material production system, comprise for storing, the raw material feed device 1 of transferring raw material, complete raw materials melt, the upper rank double screw extruder 2 of mixing formation melt, the roving glass fiber feedway 3 of roving glass fiber is provided, roving glass fiber for being provided by roving glass fiber feedway 3 is sheared and is realized coated by the roving glass fiber after shearing and the melt in upper rank double screw extruder 2, equally distributed lower rank double screw extruder 4, the melt material strip that lower rank double screw extruder 4 is extruded is sheared, be delivered to the fixed length cutting conveying device 5 of downstream former and control raw material feed device 1, upper rank double screw extruder 2, roving glass fiber feedway 3, the electric control system 6 that lower rank double screw extruder 4 and fixed length cutting conveying device 5 operate, the input of described raw material feed device 1 accepts raw material, the output of described raw material feed device 1 is connected with the input of upper rank double screw extruder 2, the output of described upper rank double screw extruder 2, the output of roving glass fiber feedway 3 is all connected with the input of lower rank double screw extruder 4, the output of described lower rank double screw extruder 4 is connected with fixed length cutting conveying device 5 input, the output of described fixed length cutting conveying device 5 is connected with downstream former.
Further, described raw material feed device 1 comprises the vacuum charging device and weight-loss type electronic measurement drawing-in device that are connected, described vacuum charging device comprises the pulp-collecting box 11 for receiving packaging Raw, utilize the vacuum feeder 12 of vacuum suction raw material, store the pellet feed supplement storehouse 13 of the raw material that vacuum feeder 12 adsorbs and store the auxiliary agent feed supplement storehouse of auxiliary agent, material sucking port is furnished with bottom described pulp-collecting box 11, and be connected with vacuum feeder 12 by pipeline, the bottom of described vacuum feeder 12 is connected with pellet feed supplement storehouse 13, described weight-loss type electronic measurement drawing-in device comprises pellet weight-loss metering feeding machine 14, small powder weight-loss metering feeding machine 15 and blanking box 16, pellet in described pellet weight-loss metering feeding machine 14 pairs of pellet feed supplement storehouses 13 is weighed and feeds in blanking box 16, auxiliary agent in described small powder weight-loss metering feeding machine 15 pairs of auxiliary agent feed supplement storehouses weighs and feeds in blanking box 16, described blanking box 16 is arranged on the feed openings of rank double screw extruder 2 feeding machine barrel.
Wherein, vacuum feeder 12 is set to 3-4 platform, conveying capacity is 400 ~ 1000kg/h, described pellet feed supplement storehouse 13 is set to 3-5 platform, volume is 0.3 ~ 1m3, described pellet feed supplement storehouse 13 is provided with level detector, lower level detector, and it is chain with alarm, described pellet weight-loss metering feeding machine 14 is set to 2-3 platform, feeding capacity 100 ~ 500kg/h, dynamic accuracy ± 0.5%, described small powder weight-loss metering feeding machine 15 is set to 1, feeding capacity 1 ~ 5kg/h, dynamic accuracy ± 0.5%, described blanking box 16 by blanking pipe respectively with pellet weight-loss metering feeding machine, small powder weight-loss metering feeding machine is connected.
Pellet weight-loss metering feeding machine: be made up of weighing silo, screw conveying device and electric control system, the feeding mouth of weighing silo is connected with the feed supplement bin discharge port external of vacuum charging device, connected mode is for being flexible coupling and configuring pneumatic operated valve, the bottom connecting screw rod conveying device of weighing silo, LOAD CELLS is installed in bottom, drawing-in device comprises feed screw, feeding machine barrel and transmission device, control system comprises feeding and communication device is sent in Weighing module, signal transacting change, and chain with main frame PLC.
Small powder weight-loss metering feeding machine: be made up of weighing silo, screw conveying device and electric control system, the feeding mouth of weighing silo is connected with the feed supplement bin discharge port external of vacuum charging device, connected mode is for being flexible coupling and configuring pneumatic operated valve, bottom connecting screw rod conveying device, LOAD CELLS is installed in bottom, drawing-in device comprises feed screw, feeding machine barrel and transmission device, feeding machine barrel is connected with weighing silo discharging opening, control system comprises feeding and communication device is sent in Weighing module, signal transacting change, and chain with main frame PLC.
Further, described upper rank double screw extruder 2 comprises high moment of torsion reduction box 22, first screw rod of the first main motor 21, first, the first machine barrel 23, exhaust apparatus 24 and connector 25, described first main motor 21 is connected with the first screw rod by the first high moment of torsion reduction box, described first screw rod is located in the first machine barrel 23, described exhaust apparatus 24 is located on the first machine barrel 23, adopt nature exhaust or vacuumizing and exhausting, one end of described connector 25 connects the discharge end of the first machine barrel 23, and the other end connects the feeding end of lower rank double screw extruder 4.
Wherein, first main motor 21 adopts alternating current generator or direct current generator, rotating speed adopts AC converter or DC speed regulator to regulate, described first main motor 21 output shaft is connected with the first high moment of torsion reduction box 22 power shaft by the first shaft coupling, power is 90 ~ 200KW, described first high moment of torsion reduction box 22 adopts parallel triple axle structure, gearratio i is 3 ~ 5, output speed 300 ~ 600RPM, described first screw rod is by the first conveying spiral shell block, first mixing spiral shell block, first mediates spiral shell block, the tandem permutation and combination structure of the first damping block and the first derotation spiral shell block composition, first screw rod rotated versions is twin-screw engagement type rotating Vortex, first screw slenderness ratio L/D is 36:1 ~ 48:1, first outer screw diameter is 61.5 ~ 94.5mm, described first machine barrel 23 is composed in series by 8 ~ 15 joint the first cylindrical shells, described first machine barrel draw ratio L/D is 36:1 ~ 48:1, often save the first cylindrical shell and comprise the first housing and the first liner, first housing adopts 45# steel to be base material, built-in cyclic water channel is for reducing the first barrel temperature, outside parcel electric heater is for heating the material in the first machine barrel, first liner is that " ∞ " structure adopts high-quality antifriction alloy through heat treatment, first cylinder bore is 62 ~ 95mm.
First main motor 21 provides power for rank double screw extruder on whole platform, make bolt rotary with complete plasticizing and mixing; First high moment of torsion reduction box 22 adopts parallel triple axle structure, it is reasonable that casing increases spatial design, be convenient to make all location bearing optimum choice, the gear in casing is large modulus engagement, 6 class precisions, high-speed overload hardened face gear, to promote the moment of torsion that gear bears; Configuration external oil pump and cooler, oil pump is by each point of mesh of oil pipe forced feed lubrication and bearing, and cooler is used for the lubricating oil in cooling box; Two first screw rods are placed in machine barrel, and two first screw rods mutually rotate and coordinate the first machine barrel to complete melting to raw material, plasticizing and mixing, and screw rod rotated versions is twin-screw engagement type rotating Vortex; Exhaust apparatus on the first cylindrical shell, is provided with exhaust port and is provided at an outer portion with exhaust chamber, and nature can be adopted to be vented or vacuumizing and exhausting, and connector adopts semi open model to connect, and configures heater outside.
Further, described roving glass fiber feedway 3 comprises the roving glass fiber conveying device and roving glass fiber dividing sinker profit yarn feeding device that are connected, described roving glass fiber conveying device comprises glass platform 31, glass support, tachogenerator 32 and glass fiber pipe 33, described glass platform 31 is fixed on bottom surface, described glass props up and is set up on glass platform 31, described tachogenerator 32 is positioned at glass platform 31 top, the corresponding tachogenerator 32 of every root glass fiber pipe 33, described roving glass fiber dividing sinker profit yarn feeding device comprises dividing sinker frame 34, dividing sinker profit yarn feeding device 35 and transmission device 36, described dividing sinker frame 34 is fixed on lower rank double screw extruder 4, and be connected with the glass fiber pipe 33 of roving glass fiber conveying device, described dividing sinker profit yarn feeding device 35 is located in dividing sinker frame 34, described dividing sinker profit yarn feeding device 35 comprises dials creel and roller, the glass carried by glass fiber pipe 33 dial move back and forth between creel and roller, described transmission device 36 driving roller motion.Concrete, glass platform adopts steel construction, described tachogenerator is 30-60 infrared tachogenerator, by four sensor support points, each infrared tachogenerator is by 1 bundle glass, then glass enters glass fiber pipe by traction again, configuration electric control box and the chain control of main frame PLC, described glass fiber pipe material is wear-resisting enhanced plastic pipe, each pipeline is by 1 bundle glass, quantity is 30 ~ 60, described dividing sinker frame adopts steel construction, described roller surface is coated with hard, wear-resistant alloy, described roller is with heating function, described transmission device comprises crankshaft disk and reducing motor.The fine roller being coated with hard, wear-resistant alloy on leaser through surface of yarn, dialling bilateral reciprocation between creel and roller, original per share yarn fibre is dispersed into tiny yarn fine, roller is with heating function, make yarn fine enter melt in conjunction with time heated, yarn fibre is better combined with the interface of polymer melt.
Put into further, described lower rank double screw extruder 4 comprises high moment of torsion reduction box 42, second screw rod of the second main motor 41, second, the second machine barrel 43 and adjustable nose 44, described second main motor 41 is connected with the second screw rod by the second high moment of torsion reduction box 42, described second screw rod is located in the second machine barrel 43, described adjustable nose 44 is installed on the discharge outlet of lower rank double screw extruder 4, described adjustable nose 44 adopts upper and lower Hough block combiner, and wherein lower module connects servo hydraulic system.
Concrete, second main motor 41 adopts alternating current generator or direct current generator, rotating speed adopts AC converter or DC speed regulator to regulate, second main motor output shaft is connected with the second high moment of torsion reduction box 42 power shaft by the second shaft coupling, second main motor 41 power is 90 ~ 160KW, described second high moment of torsion reduction box 42 adopts parallel triple axle structure, gearratio i is 3 ~ 5, output speed is 50 ~ 300RPM, described second screw rod is by the second conveying spiral shell block, second mixing spiral shell block, second mediates spiral shell block, the tandem permutation and combination structure of the second damping block and the second derotation spiral shell block composition, second screw rod rotated versions is twin-screw engagement type rotating Vortex, second screw slenderness ratio L/D is 12:1 ~ 20:1, second outer screw diameter is 61.5 ~ 94.5mm, described second machine barrel 43 is composed in series by 8 ~ 15 joint the second cylindrical shells, described second machine barrel draw ratio L/D is 12:1 ~ 20:1, often save the second cylindrical shell and comprise the second housing and the second liner, second housing adopts 45# steel to be base material, built-in cyclic water channel is for reducing the second barrel temperature, outside parcel electric heater is for heating the material in the second machine barrel, second liner is that " ∞ " structure adopts high-quality antifriction alloy through heat treatment, second cylinder bore is 62 ~ 95mm.
Second main motor 41 provides power for rank double screw extruder under whole platform, make bolt rotary with complete plasticizing and mixing; Second high moment of torsion reduction box 42 adopts parallel triple axle structure, and it is reasonable that casing increases spatial design, is convenient to make all location bearing optimum choice; Gear in casing is large modulus engagement, 6 class precisions, high-speed overload hardened face gear, to promote the moment of torsion that gear bears; Configuration external oil pump and cooler, oil pump is by each point of mesh of oil pipe forced feed lubrication and bearing, and cooler is used for the lubricating oil in cooling box; Two second screw rods are placed in the second machine barrel, and two second screw rods mutually rotate and coordinate the second machine barrel to complete melting to raw material, plasticizing and mixing, and screw rod rotated versions is twin-screw engagement type rotating Vortex; Adjustable nose 44 installs the discharge outlet with lower rank double screw extruder, for regulating the size of melt material strip, and makes it keep the homogeneity of size.
Further, described fixed length cutting conveying device 5 comprises fixed-length cutting device 51, conveying device 52 and attemperator 53, described fixed-length cutting device 51 cuts into material block for the melt material strip extruded by lower rank double screw extruder 4, described conveying device 52 is delivered to downstream former for the material block after being sheared by fixed-length cutting device 51, and described conveying device 52 is provided with attemperator 53.
Fixed-length cutting device is driven by motor, and shut-off mechanism door frame, built with electric boiling plate, has heat insulation function; Conveyer belt A, B of conveying device drive respectively with 2 servomotors, and conveyer belt A, B swing to switch and adopt electric pushrod to drive; Stay-warm case comprises 2 groups of 4 pieces of stay-warm cases, drives upset, stay-warm case electrical heating type respectively by 4 cover electric pushrods.
As shown in Figure 2, a kind of production method of glass fibre reinforced composite material production system, comprises the following steps:
Step (1), pours into pulp-collecting box by raw material from packaging bag;
Step (2), the raw material in pulp-collecting box is sucked in pellet feed supplement storehouse by vacuum feeder, meanwhile, in auxiliary agent feed supplement storehouse, pours auxiliary agent into;
Step (3), weight-loss metering mode is adopted to fall into upper rank double screw extruder through blanking box by pellet weight-loss metering feeding machine, small powder weight-loss metering feeding machine the auxiliary agent in the raw material in pellet feed supplement storehouse, auxiliary agent feed supplement storehouse, in the double screw extruder of upper rank, its melting is made to heating raw materials, and by screw rod further mixing make each component disperses fully, be evenly distributed, finally form the good melt of plasticizing;
Step (4), utilizes roving glass fiber conveying device to deposit multireel glass and makes each bundle glass separate through roving glass fiber dividing sinker profit yarn feeding device, original per share glass is dispersed into tiny yarn fine, and the yarn fibre tiny to these heating;
Step (5), by in the double screw extruder of fine for yarn tiny in the melt in step (3), step (4) common input lower rank, complete in the double screw extruder of lower rank to the shearing of tiny yarn fibre and and the Homogeneous phase mixing, coated of melt, and regulated the size of the melt material strip extruded by the adjustable nose of lower rank double screw extruder;
Step (6), cuts into the length of product needed, and is delivered to downstream former through conveying device through fixed-length cutting device by the melt material strip in step (5).
This glass fibre reinforced composite material production system is the production equipment of a set of overall coherence, its production method is accomplished without any letup from raw material to product, coherent on earth, eliminate the link of intermediate semi-finished products, greatly save production cost, and optimize the quality of product, and reduce selling price, have a good application prospect.
More than show and describe general principle of the present invention, principal character and advantage.The technical staff of the industry should understand; the present invention is not restricted to the described embodiments; what describe in above-described embodiment and description just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.Application claims protection domain is defined by appending claims and equivalent thereof.
Claims (10)
1. a glass fibre reinforced composite material production system, it is characterized in that, comprise for storing, the raw material feed device of transferring raw material, complete raw materials melt, the upper rank double screw extruder of mixing formation melt, the roving glass fiber feedway of roving glass fiber is provided, roving glass fiber for being provided by roving glass fiber feedway is sheared and is realized coated by the roving glass fiber after shearing and the melt in the double screw extruder of upper rank, equally distributed lower rank double screw extruder, the melt material strip that lower rank double screw extruder is extruded is sheared, be delivered to the fixed length cutting conveying device of downstream former and control raw material feed device, upper rank double screw extruder, roving glass fiber feedway, the electric control system of lower rank double screw extruder and the running of fixed length cutting conveying device, the input of described raw material feed device accepts raw material, the output of described raw material feed device is connected with the input of upper rank double screw extruder, the output of described upper rank double screw extruder, the output of roving glass fiber feedway is all connected with the input of lower rank double screw extruder, the output of described lower rank double screw extruder is connected with fixed length cutting conveying device input, the output of described fixed length cutting conveying device is connected with downstream former.
2. a kind of glass fibre reinforced composite material production system according to claim 1, it is characterized in that, described raw material feed device comprises the vacuum charging device and weight-loss type electronic measurement drawing-in device that are connected, described vacuum charging device comprises the pulp-collecting box for receiving packaging Raw, utilize the vacuum feeder of vacuum suction raw material, store the pellet feed supplement storehouse of the raw material that vacuum feeder adsorbs and store the auxiliary agent feed supplement storehouse of auxiliary agent, material sucking port is furnished with bottom described pulp-collecting box, and be connected with vacuum feeder by pipeline, the bottom of described vacuum feeder is connected with pellet feed supplement storehouse, described weight-loss type electronic measurement drawing-in device comprises pellet weight-loss metering feeding machine, small powder weight-loss metering feeding machine and blanking box, described pellet weight-loss metering feeding machine is weighed to the pellet in pellet feed supplement storehouse and is fed in blanking box, described small powder weight-loss metering feeding machine weighs the auxiliary agent in auxiliary agent feed supplement storehouse and feeds in blanking box, described blanking box is arranged on the feed openings of rank double screw extruder feeding machine barrel.
3. a kind of glass fibre reinforced composite material production system according to claim 1, it is characterized in that, described upper rank double screw extruder comprises the first main motor, first high moment of torsion reduction box, first screw rod, first machine barrel, exhaust apparatus and connector, described first main motor is connected with the first screw rod by the first high moment of torsion reduction box, described first screw rod is located in the first machine barrel, described exhaust apparatus is located on the first machine barrel, adopt nature exhaust or vacuumizing and exhausting, one end of described connector connects the discharge end of the first machine barrel, the other end connects the feeding end of lower rank double screw extruder.
4. a kind of glass fibre reinforced composite material production system according to claim 1, it is characterized in that, described roving glass fiber feedway comprises the roving glass fiber conveying device and roving glass fiber dividing sinker profit yarn feeding device that are connected, described roving glass fiber conveying device comprises glass platform, glass support, tachogenerator and glass fiber pipe, described glass platform is fixed on bottom surface, described glass props up and is set up on glass platform, described tachogenerator is positioned at glass platform upper, the corresponding tachogenerator of every root glass fiber pipe, described roving glass fiber dividing sinker profit yarn feeding device comprises dividing sinker frame, dividing sinker profit yarn feeding device and transmission device, described dividing sinker frame is fixed on the double screw extruder of lower rank, and be connected with the glass fiber pipe of roving glass fiber conveying device, described dividing sinker profit yarn feeding device is located in dividing sinker frame, described dividing sinker profit yarn feeding device comprises dials creel and roller, the glass carried by glass fiber pipe dial move back and forth between creel and roller, described actuator drives roller motion.
5. a kind of glass fibre reinforced composite material production system according to claim 1, it is characterized in that, described lower rank double screw extruder comprises the second main motor, the second high moment of torsion reduction box, the second screw rod, the second machine barrel and adjustable nose, described second main motor is connected with the second screw rod by the second high moment of torsion reduction box, described second screw rod is located in the second machine barrel, described adjustable nose is installed on the discharge outlet of lower rank double screw extruder, described adjustable nose adopts upper and lower Hough block combiner, and wherein lower module connects servo hydraulic system.
6. a kind of glass fibre reinforced composite material production system according to claim 1, it is characterized in that, described fixed length cutting conveying device comprises fixed-length cutting device, conveying device and attemperator, described fixed-length cutting device is used for the melt material strip that lower rank double screw extruder is extruded to cut into material block, described conveying device is used for the material block after being sheared by fixed-length cutting device and is delivered to downstream former, and described conveying device is provided with attemperator.
7. a kind of glass fibre reinforced composite material production system according to claim 2, it is characterized in that, described vacuum feeder is set to 3-4 platform, and conveying capacity is 400 ~ 1000kg/h, and described pellet feed supplement storehouse is set to 3-5 platform, and volume is 0.3 ~ 1m
3described pellet feed supplement storehouse is provided with level detector, lower level detector, and it is chain with alarm, described pellet weight-loss metering feeding machine is set to 2-3 platform, feeding capacity 100 ~ 500kg/h, dynamic accuracy ± 0.5%, described small powder weight-loss metering feeding machine is set to 1, feeding capacity 1 ~ 5kg/h, dynamic accuracy ± 0.5%, described blanking box is connected with pellet weight-loss metering feeding machine, small powder weight-loss metering feeding machine respectively by blanking pipe.
8. a kind of glass fibre reinforced composite material production system according to claim 3, it is characterized in that, described first main motor adopts alternating current generator or direct current generator, rotating speed adopts AC converter or DC speed regulator to regulate, described first main motor output shaft is connected with the first high moment of torsion reduction box input shaft by the first shaft coupling, power is 90 ~ 200KW, described first high moment of torsion reduction box adopts parallel triple axle structure, gearratio i is 3 ~ 5, output speed 300 ~ 600RPM, described first screw rod is by the first conveying spiral shell block, first mixing spiral shell block, first mediates spiral shell block, the tandem permutation and combination structure of the first damping block and the first derotation spiral shell block composition, first screw rod rotated versions is twin-screw engagement type rotating Vortex, first screw slenderness ratio L/D is 36:1 ~ 48:1, first outer screw diameter is 61.5 ~ 94.5mm, described first machine barrel is composed in series by 8 ~ 15 joint the first cylindrical shells, described first machine barrel draw ratio L/D is 36:1 ~ 48:1, often save the first cylindrical shell and comprise the first housing and the first liner, first housing adopts 45# steel to be base material, built-in cyclic water channel is for reducing the first barrel temperature, outside parcel electric heater is for heating the material in the first machine barrel, first liner is that " ∞ " structure adopts high-quality antifriction alloy through heat treatment, first cylinder bore is 62 ~ 95mm.
9. a kind of glass fibre reinforced composite material production system according to claim 5, it is characterized in that, described second main motor adopts alternating current generator or direct current generator, rotating speed adopts AC converter or DC speed regulator to regulate, second main motor output shaft is connected with the second high moment of torsion reduction box input shaft by the second shaft coupling, second main motor power is 90 ~ 160KW, described second high moment of torsion reduction box adopts parallel triple axle structure, gearratio i is 3 ~ 5, output speed is 50 ~ 300RPM, described second screw rod is by the second conveying spiral shell block, second mixing spiral shell block, second mediates spiral shell block, the tandem permutation and combination structure of the second damping block and the second derotation spiral shell block composition, second screw rod rotated versions is twin-screw engagement type rotating Vortex, second screw slenderness ratio L/D is 12:1 ~ 20:1, second outer screw diameter is 61.5 ~ 94.5mm, described second machine barrel is composed in series by 8 ~ 15 joint the second cylindrical shells, described second machine barrel draw ratio L/D is 12:1 ~ 20:1, often save the second cylindrical shell and comprise the second housing and the second liner, second housing adopts 45# steel to be base material, built-in cyclic water channel is for reducing the second barrel temperature, outside parcel electric heater is for heating the material in the second machine barrel, second liner is that " ∞ " structure adopts high-quality antifriction alloy through heat treatment, second cylinder bore is 62 ~ 95mm.
10., based on the production method of a kind of glass fibre reinforced composite material production system described in any one of claim 1-9, it is characterized in that, comprise the following steps:
Step (1), pours into pulp-collecting box by raw material from packaging bag;
Step (2), the raw material in pulp-collecting box is sucked in pellet feed supplement storehouse by vacuum feeder, meanwhile, in auxiliary agent feed supplement storehouse, pours auxiliary agent into;
Step (3), auxiliary agent in raw material in pellet feed supplement storehouse, auxiliary agent feed supplement storehouse is fallen into upper rank double screw extruder by pellet weight-loss metering feeding machine, small powder weight-loss metering feeding machine through blanking box, in the double screw extruder of upper rank, its melting is made to heating raw materials, and by screw rod further mixing make each component disperses fully, be evenly distributed, the final melt forming plasticizing;
Step (4), utilizes roving glass fiber conveying device to deposit multireel glass and makes each bundle glass separate through roving glass fiber dividing sinker profit yarn feeding device, original per share glass is dispersed into tiny yarn fine, and the yarn fibre tiny to these heating;
Step (5), by in the double screw extruder of fine for yarn tiny in the melt in step (3), step (4) common input lower rank, complete in the double screw extruder of lower rank to the shearing of tiny yarn fibre and and the Homogeneous phase mixing, coated of melt, and regulated the size of the melt material strip extruded by the adjustable nose of lower rank double screw extruder;
Step (6), cuts into the length of product needed, and is delivered to downstream former through conveying device through fixed-length cutting device by the melt material strip in step (5).
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