CN116061470A - Long glass fiber reinforced thermoplastic material melting, dipping, extruding and pulling device - Google Patents
Long glass fiber reinforced thermoplastic material melting, dipping, extruding and pulling device Download PDFInfo
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- CN116061470A CN116061470A CN202310267787.7A CN202310267787A CN116061470A CN 116061470 A CN116061470 A CN 116061470A CN 202310267787 A CN202310267787 A CN 202310267787A CN 116061470 A CN116061470 A CN 116061470A
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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
- 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
- B29C70/526—Pultrusion dies, e.g. dies with moving or rotating parts
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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
- 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
- B29C70/523—Pultrusion, i.e. forming and compressing by continuously pulling through a die and impregnating the reinforcement in the die
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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- Extrusion Moulding Of Plastics Or The Like (AREA)
- Moulding By Coating Moulds (AREA)
Abstract
The invention discloses a long glass fiber reinforced thermoplastic material melting, dipping and extruding device, which realizes synchronous reverse driving of a top extruding and extruding linkage die head and a bottom extruding and extruding linkage die head through a driving device; the inner cavities of the top layer mechanism and the bottom layer structure are respectively provided with an oblique angle and a synchronous extrusion and pulling groove, working gaps between the top extrusion and pulling linkage die head and the bottom extrusion and pulling linkage die head are respectively controlled through the oblique angle and the synchronous extrusion and pulling groove, the fiber and reinforced thermoplastic material are immersed, extruded and driven in a dispersing way through the devices, and meanwhile, the dipping problem under high resin viscosity and the temperature control problem of heat-sensitive aggregate in the prior art are solved through the optimized design of the runner structure and the auxiliary heating device. The invention ensures the length of the long fiber material after shearing and mixing to the greatest extent, ensures the even mixing of the melted material and the long fiber material to the greatest extent, and further improves the mechanical strength, the high temperature performance and the impact resistance of the long fiber composite material product.
Description
Technical Field
The invention relates to the technical field of long fiber reinforced thermoplastic material melt impregnation forming, in particular to a device for melt impregnation extrusion and drawing of a long glass fiber reinforced thermoplastic material.
Background
The long fiber reinforced thermoplastic plastic is a high-performance composite material which is rapidly developed in recent years, and the material is characterized in that: the fiber reinforced thermoplastic plastic has high rigidity, high strength, excellent heat resistance, creep resistance and high dimensional stability, has long service life, is more suitable for being used in occasions with frequent high and low temperature changes compared with short fiber reinforced thermoplastic plastic, has high dimensional stability, can keep high dimensional accuracy, can be subjected to injection molding on a common injection molding machine, can realize compression molding, and has the characteristics of low warpage and high surface finish.
However, while thermoplastic polymers possess the above technical characteristics, they also have the following drawbacks: thermoplastic polymers have high viscosity when melted and are difficult to impregnate. Therefore, how to form good impregnation between the long fibers and the matrix so that the long fibers and the matrix are fully contacted and fully mixed, and reducing the damage to the long fiber material in the preparation and forming processes of the composite material is a key problem faced by the current preparation and forming processes of the material; meanwhile, in the process of forming the composite material, the more uniform the fiber dispersion is, the better the mechanical strength and heat resistance are, and the elastic modulus is obviously improved, so that ensuring the uniform dispersion of the fiber in the matrix resin is a basic condition for ensuring the strength of the fiber.
The long fiber reinforced thermoplastic composite material is researched from the beginning of the 60 th century in China, the long fiber reinforced thermoplastic composite material enters the 80 th year, some domestic scientific research units perform corresponding application research on the basis of digestion and absorption of foreign technology, and most of all domestic major manufacturers adopt a melt impregnation extrusion drawing technology to produce composite material products at present, but the melt impregnation extrusion drawing equipment adopted in China currently has the following important defects: 1. the structural design of the die is not ideal, the impregnating and dispersing effects on the product are not ideal, and good impregnating effects are difficult to realize; 2. the method is not suitable for preparing high-viscosity composite plastic products, the viscosity of resin used in the current market is low, the melt index is 50-100g/min, the impregnation is easy, the manufacturing difficulty of the composite plastic products is generally reduced, but the dispersion and good impregnation effect of monofilament grade are difficult to realize for the resin with the melt index of 20g/min or higher; 3. the prior art is not suitable for preparing heat-sensitive composite material products, in a heat-sensitive system, materials are sensitive to temperature, heat resistance is not strong, more aggregate is not allowed to exist in a mold, but the structure adopted by the prior dipping mold causes more aggregate in the mold, so that the degradation of the materials is easy to cause, and the method is not suitable for preparing reinforcing particles of the heat-sensitive system.
In view of the constraints of the material characteristics, it is very necessary to improve the structure of the existing long glass fiber reinforced thermoplastic material melt impregnation, extrusion and drawing device, so that a good impregnation effect is realized on the basis of ensuring a material with higher viscosity.
Disclosure of Invention
The invention aims to provide a device for melt impregnation, extrusion and drawing of a long glass fiber reinforced thermoplastic material, which aims to solve the problem that the impregnating and dispersing effects of the long fiber material in a die structure are not ideal in the prior art, and also solve the impregnating problem under high resin viscosity and the temperature control problem of thermosensitive aggregates in the prior art, and improve the universality of an impregnation, extrusion and drawing die, so that the mechanical strength, high-temperature performance and impact resistance of the long fiber composite material are further improved.
The scheme disclosed by the invention is expressed as follows:
the device comprises a top layer mechanism and a bottom layer mechanism, wherein the two layers of structures are connected in a butt joint way and are integrally formed into a working box body, a feed inlet and a discharge outlet are arranged on the working box body, and a height adjusting device is arranged between the top layer mechanism and the bottom layer mechanism; the top layer mechanism and the bottom layer mechanism are internally provided with a top extrusion and drawing linkage die head and a bottom extrusion and drawing linkage die head respectively; the matched working box body is provided with a driving device to drive the top extrusion-drawing linkage die head and the bottom extrusion-drawing linkage die head; a cushion block device is arranged between the top layer mechanism and the bottom layer mechanism; the inner cavity of the top layer mechanism is provided with an oblique angle, the bottom of the top layer mechanism body is provided with a synchronous extruding and pulling groove, the gap between the synchronous extruding and pulling groove and the top extruding and pulling linkage die head is 1-5mm, and the bottom of the top layer mechanism body is inclined at an angle of 0-10 degrees. The inner cavity of the bottom layer mechanism is provided with an oblique angle, the top of the bottom layer mechanism body is provided with a synchronous extruding and pulling groove, the gap between the synchronous extruding and pulling groove and the bottom extruding and pulling transmission die head is 1-5mm, and the inclination angle of the top of the bottom layer mechanism body is 0-10 degrees. The working box body is internally provided with a plurality of heating devices for heating the material running area inside the working box body.
The height adjusting device is arranged at the left end and the right end of the top layer mechanism and the bottom layer mechanism and comprises an upper fixing plate and a lower fixing plate which are connected and fixed through adjusting bolts.
The top extrusion and drawing linkage die heads and the bottom extrusion and drawing linkage die heads are horizontally overlapped and staggered, and the rotation directions of the top extrusion and drawing linkage die heads and the bottom extrusion and drawing linkage die heads are opposite.
The driving device is a single driving source, the unidirectional driving of the top extrusion drawing linkage die head or the bottom extrusion drawing linkage die head is directly realized through the driving gear, the driving device is meshed with the driving gear and is provided with the driven gear, the driving gear and the driven gear are in reversing meshing arrangement, and the steering directions of the driving gear and the driven gear are opposite.
The end parts of the top extrusion and drawing linkage die heads and the bottom extrusion and drawing linkage die heads are provided with driven chain wheels, and the driven chain wheels on the top extrusion and drawing linkage die heads are in surrounding linkage through top chains; a plurality of driven chain wheels on the bottom extrusion-pulling linkage die head are in surrounding linkage through a bottom chain; the top chain and the bottom chain are provided with tensioning devices.
The inside of the axle center of the top extrusion drawing linkage die head and the bottom extrusion drawing linkage die head is provided with a hollow structure, and the inside of the axle center is provided with a heater for heating the top extrusion drawing linkage die head and the bottom extrusion drawing linkage die head.
The top extrusion and drawing linkage die head is arranged in a variable-diameter revolving body structure, and a smooth large-diameter area and a smooth small-diameter area are arranged on the periphery of the top extrusion and drawing linkage die head; the bottom extrusion-drawing linkage die head is arranged in a variable-diameter revolving body structure, and a smooth large-diameter area and a smooth small-diameter area are arranged on the periphery of the bottom extrusion-drawing linkage die head; the top extrusion-drawing linkage die head and the bottom extrusion-drawing linkage die head are complementarily assembled, and the large-diameter area and the small-diameter area are complementarily butted to realize assembly.
Compared with the prior art, the long fiber mixing linkage pushing device for the long fiber reinforced thermoplastic material has the following advantages:
the invention adopts the extrusion and drawing die head die with special structure, and realizes synchronous reverse drive of the top extrusion and drawing linkage die head and the bottom extrusion and drawing linkage die head through the driving device; the inner cavities of the top layer mechanism and the bottom layer structure are respectively provided with an oblique angle and a synchronous extrusion and pulling groove, working gaps between the top extrusion and pulling linkage die head and the bottom extrusion and pulling linkage die head are respectively controlled through the oblique angle and the synchronous extrusion and pulling groove, fiber and reinforced thermoplastic material impregnation and extrusion and dispersion driving are carried out through the devices, meanwhile, through the optimization design of the runner structure and the auxiliary heating device, the impregnation problem under high resin viscosity and the temperature control problem of heat-sensitive aggregate in the prior art are solved, and the universality of the impregnation and extrusion die in the use process is further improved.
According to the invention, the optimized and improved stirring and mixing procedures of the long fiber materials and the molten materials after shearing in the melt impregnation and mixing of the long fiber reinforced thermoplastic materials are realized, and in the production process of the prior art, after the long fiber materials are cut by a universal double-screw die head, the long fiber materials and the molten materials are further stirred and mixed by utilizing the same-direction rotation of the double screw, so that the long fiber materials are inevitably broken and mixed unevenly. The invention optimizes and improves the working procedures, can ensure the length of the long fiber material after shearing and mixing to the greatest extent, and ensures the even mixing of the melting material and the long fiber material to the greatest extent, thereby further improving the mechanical strength, the high temperature performance and the impact resistance of the long fiber composite material product.
Drawings
FIG. 1 is a schematic view of a three-dimensional structure of a discharge port of the invention;
FIG. 2 is a schematic diagram of a three-dimensional structure of a feed inlet of the present invention;
FIG. 3 is a schematic side view of the present invention;
FIG. 4 is a schematic view of the internal bottom perspective of the present invention;
FIG. 5 is a schematic view of the internal top perspective of the present invention;
FIG. 6 is an enlarged schematic view of the sectional structure of the area A in FIG. 2;
FIG. 7 is a schematic diagram of a cross-sectional configuration of a top-extrusion-drawing linkage die head and a bottom-extrusion-drawing linkage die head;
FIG. 8 is a schematic diagram of a top-extrusion-drawing linkage die head and bottom-extrusion-drawing linkage die head assembly front view structure;
FIG. 9 is a schematic view of the bevel angle structure of the top layer mechanism and the bottom layer mechanism;
in the figure, 1, a top layer mechanism, 11, an upper driven sprocket, 12, a top chain, 13, an ascending tension wheel, 131, a tension wheel supporting frame, 14, a driving gear, 15, a feed inlet, 16, a discharge outlet, 17, a top extrusion and drawing linkage die head, 18, an heightened gasket, 19, a synchronous extrusion and drawing groove, 2, a bottom layer mechanism, 21, a lower driven sprocket, 22, a bottom chain, 23, a descending tension wheel, 24, a driven gear, 25, a bottom extrusion and drawing linkage die head, 26, a sensor fixing point, 3, a driving motor, 4, an adjusting bolt, 5, a die head main body, 51, a large diameter area, 52, a small diameter area, 53, a heating cavity, 6, an auxiliary heating component, 61, a connecting screw, 62, a middle heating core, 7 and a heater.
Detailed Description
Embodiments of the present invention will be described below with reference to specific examples.
A long glass fiber reinforced thermoplastic material melt impregnation extruding and pulling device comprises a top layer mechanism 1 and a bottom layer mechanism 2 which are of square structures, wherein the two layers of structures are butted together and locked to form a working box body, a feed inlet 15 and a discharge outlet 16 are formed in the working box body, a height adjusting device is arranged between the top layer mechanism 1 and the bottom layer mechanism 2 and used for fine adjustment of the size of a working cavity in the working box body, and materials with different viscosities are extruded and conveyed through fine adjustment.
The bottom of the top layer mechanism 1 is provided with an inner cavity, the inner cavity is provided with an oblique angle from left to right, the bottom of the body of the top layer mechanism 1 is uniformly provided with a plurality of synchronous extrusion and pulling grooves 19, the gap between the synchronous extrusion and pulling grooves 19 and the top extrusion and pulling linkage die head 17 is 2 millimeters, and the inclination angle of the bottom of the body of the top layer mechanism 1 is 0-10 degrees, and in the embodiment, the angle of 5 degrees is preferable.
The top of the bottom layer mechanism 2 is also provided with an inner cavity, the inner cavity is provided with an oblique angle from left to right (from the feed inlet 15 to the discharge outlet 16), the top of the body of the bottom layer mechanism 2 is provided with a synchronous extrusion slot 19, the gap between the synchronous extrusion slot 19 and the bottom extrusion linkage die head 25 is 2 mm, and the inclination angle of the bottom of the body of the bottom layer mechanism 2 is 0-10 degrees, and in the embodiment, the angle of 5 degrees is preferable. The inclined states of the bottom layer mechanism 2 and the top layer mechanism 1 described above are shown in fig. 9.
The gaps of 2 mm can scrape materials adhered to the top extrusion drawing linkage die head 17 and the bottom extrusion drawing linkage die head 25 through the synchronous extrusion drawing grooves 19 respectively, so that excessive adhesion of the materials is prevented.
After the arrangement of the structure, in the embodiment of the application, after the top layer mechanism 1 and the bottom layer mechanism 2 are combined, a channel capable of containing molten material to circulate is formed between the two mechanisms, the shape of the channel is a bucket shape or a horn shape, and the direction in which the formed opening is reduced (the opening on the right side is reduced) is the direction along which the material fluid flows; the synchronous extrusion slot 19 is a smooth and regular concave-convex arc surface which is respectively matched with the external contours of the top extrusion drawing linkage die head 17 and the bottom extrusion drawing linkage die head 25. The melt and the long fiber material enter a runner of the long fiber dipping and mixing device through a feed inlet 15, the melt mixture is repeatedly extruded and pulled for a plurality of times in the runner through one or more top extrusion and pulling linkage dies 17 and a bottom extrusion and pulling linkage die 25, the melt mixture and the long fiber material are fully ensured to be fully dipped and mixed, and the melt mixture after the dipping and mixing is carried out enters the next process through a discharge outlet 16.
The device is matched with a working box body and is provided with a driving motor 3 to drive a top extrusion and drawing linkage die head 17 and a bottom extrusion and drawing linkage die head 25; because this device has the function of finely tuning the inside working chamber size of working box, so be provided with between its top layer mechanism 1 and the bottom mechanism 2 and increase gasket 18, can finely tune the joint seam of this working box through increasing gasket 18. In order to realize the fine tuning function, the height adjusting device is arranged at four corners of the left end and the right end of the joint of the top layer mechanism 1 and the bottom layer mechanism 2, and the four corners of the joint of the top layer mechanism 1 and the bottom layer mechanism 2 are correspondingly provided with an upper fixing plate and a lower fixing plate, and the upper fixing plate and the lower fixing plate are connected and fixed through an adjusting bolt 4.
Further, the overall structures of the top extrusion-pulling linkage die head 17 and the bottom extrusion-pulling linkage die head 25 disclosed by the device are the same, as shown in fig. 4, 5, 6 and 7, the two extrusion-pulling linkage die heads are all in a variable-diameter revolving structure, and comprise a die head main body 5, and the die head main body 5 is provided with a smooth large-diameter area 51 and a smooth small-diameter area 52; during assembly, the top extrusion and pulling linkage die head 17 and the bottom extrusion and pulling linkage die head 25 are complementarily assembled, the thick diameter region 51 and the thin diameter region 52 are in butt joint for realizing the assembly, as shown in fig. 7 and 8, the top extrusion and pulling linkage die head 17 is arranged at the upper part, the bottom extrusion and pulling linkage die head 25 is arranged at the lower part, the thick diameter region 51 of the top extrusion and pulling linkage die head 17 corresponds to the thin diameter region 52 of the bottom extrusion and pulling linkage die head 25, the thin diameter region 52 of the top extrusion and pulling linkage die head 17 corresponds to the thick diameter region 51 of the bottom extrusion and pulling linkage die head 25, and the thick and thin lap joint of the upper die head main body 5 and the lower die head main body are realized for assembly. The center distance between the top extrusion and drawing linkage die heads is 100-200mm, and the center distance between the bottom extrusion and drawing linkage die heads is 100-200mm, so that the adjustment of the specific assembly structure is carried out in the range.
When the device is in operation, the rotation directions of the top extrusion and drawing linkage die heads 17 and the bottom extrusion and drawing linkage die heads 25 which are arranged in a vertically staggered mode are opposite, the structure not only realizes the material driving in the same direction, but also realizes the maximum traction and kneading of the material in a soft state to realize the mixing with the fiber and avoid the cutting of the long fiber without traction. In order to achieve the above actions, in this embodiment, two sets of driving systems may be provided to independently drive the top extrusion-drawing linkage die head 17 and the bottom extrusion-drawing linkage die head 25, but such driving method is not applicable in a narrow equipment space.
In order to improve the above, in this embodiment, the driving device is a single driving source, as shown in fig. 1 and 2, the driving motor 3 drives the driving gear 14 to directly realize unidirectional driving of the top extrusion and drawing linkage die head 17, the driving gear 14 is cooperatively arranged with the driving gear, the driven gear 24 is engaged with the driving gear 14, the driving gear 14 and the driven gear 24 are in reversing engagement, and the directions of the driving gear and the driven gear are opposite (the directions of the driving gear and the driving gear are opposite).
After the above structure is set, the linkage structures of the top extrusion drawing linkage die head 17 and the bottom extrusion drawing linkage die head 25 are described as follows: taking the driving of the top extrusion and pulling linkage die heads 17 as an example, the end parts of the top extrusion and pulling linkage die heads 17 are all provided with upper driven chain wheels 11, and the upper driven chain wheels 11 on the top extrusion and pulling linkage die heads are in surrounding linkage through a top chain 12. The bottom squeeze-and-pull linkage die head realizes linkage driven by the bottom chain 22 in the same structure. The top chain 12 and the bottom chain 22 are respectively provided with a tensioning device, the tensioning devices are respectively an upper tensioning wheel 13 and a lower tensioning wheel 23, the two tensioning devices are identical in structure, the two tensioning devices respectively comprise a tensioning wheel supporting frame 131 which is used for being connected with the side wall of the working box body, and the upper tensioning wheel 13 and the lower tensioning wheel 23 are respectively fixed on the chain to realize chain tension support so as to prevent the chain from loosening.
When the device is operated, the driving motor 3 can be provided with variable frequency output to realize output power adjustment under the driving of the driving motor 3, the driving of the top extrusion-drawing linkage die head 17 and the bottom extrusion-drawing linkage die head 25 is realized under the driving of the driving motor 3, the variable frequency adjustment control is carried out according to the input speed of the melting materials in the working cavity in the moving process, and the top extrusion-drawing linkage die head 17 and the bottom extrusion-drawing linkage die head 25 carry out synchronous circular movement in opposite directions. In the production process in the prior art, after the long fiber material is cut by the double screw die head, the long fiber and the molten material are further stirred and mixed by utilizing the same-direction rotation of the double screw, which inevitably leads to the breakage and uneven mixing of part of the long fiber material. The invention optimizes and improves the working procedures, thereby maximally ensuring the length of the long fiber material after shearing and mixing, maximally ensuring the uniform mixing of the melted material and the long fiber material, and improving the mechanical strength, the high-temperature performance and the impact resistance of the long fiber composite material finished product.
Further technical optimization, the long glass fiber reinforced thermoplastic material melt impregnation extrusion device that this application optimized out, multiunit auxiliary heating subassembly 6 respectively with top layer mechanism 1 and the side shield fixed connection of bottom mechanism 2 and keep fixed state in long glass fiber reinforced thermoplastic material melt impregnation shaping in-process, the crowded linkage die head of drawing 17 and the crowded linkage die head 25 of bottom are linked this moment, further, crowded linkage die head 17 of top and the crowded inside hollow structure setting that all is of axle center of drawing linkage die head 25 of bottom, inside heater 7 or auxiliary heating subassembly 6 of having placed, heater 7 can be electric heater unit or external conduction oil device.
The auxiliary heating assembly 6 comprises connecting threads 61 on the outer surface and a middle heating core 62, and is fixed in the shaft centers of the top extrusion-drawing linkage die head 17 and the bottom extrusion-drawing linkage die head 25 through the connecting threads 61 for heating, so that the transition effects of dynamic and static combination and separation are achieved in the running process of the equipment.
In a preferred embodiment of the present application, the long fiber impregnation mixing device further comprises a plurality of sensor fixing points 26 on the top layer mechanism 1 and the bottom layer mechanism 2, wherein the sensors are fixed at a plurality of points and independently control the auxiliary heat assemblies 6, the temperature can be preset through an external control system, when the sensor at a certain position senses that the temperature is lower than the preset temperature, the corresponding auxiliary heat assemblies 6 are heated to the preset temperature, and the structure can be flexibly controlled, so that the temperature of each position of the top layer mechanism 1 and the bottom layer mechanism 2 can meet the temperature requirement when different molten materials are conveyed.
The "preset temperature" may be flexibly adjusted according to actual needs, and is not specifically limited in numerical value here.
The use of a lifting adjustment between the top layer mechanism 1 and the bottom layer mechanism 2 in the apparatus is also exemplarily shown in fig. 8. When the long fiber dipping and mixing device needs to adjust the lifting height, the top layer mechanism 1 is firstly lifted through the lifting device, the bottom layer mechanism 2 is kept motionless, and one or more heightening gaskets 18 are placed between the top layer mechanism 1 and the bottom layer mechanism 2 according to the lifting height requirement to control the lifting height. After the clearance between the top layer mechanism 1 and the bottom layer mechanism 2 is determined, locking and positioning are realized through the adjusting bolts 4. From the above description, those skilled in the art will readily implement this.
Claims (10)
1. The utility model provides a long glass fiber reinforced thermoplastic material melting, impregnating, extruding and pulling device which characterized in that: the device comprises a top layer mechanism and a bottom layer mechanism, wherein the two layers of structures are connected in a butt joint way and are integrally formed into a working box body, a feed inlet and a discharge outlet are arranged on the working box body, and a height adjusting device is arranged between the top layer mechanism and the bottom layer mechanism; the top layer mechanism and the bottom layer mechanism are internally provided with a top extrusion-drawing linkage die head and a bottom extrusion-drawing linkage die head respectively; the matched working box body is provided with a driving device to drive the top extrusion-drawing linkage die head and the bottom extrusion-drawing linkage die head; the bottom of the top layer mechanism body and the top of the bottom layer mechanism body are provided with synchronous extrusion and pulling grooves; the gap between the synchronous extrusion drawing groove and the top extrusion drawing linkage die head is 1-5mm; the working box body is internally provided with a plurality of heating devices for heating the material running area inside the working box body.
2. The long glass fiber reinforced thermoplastic material melt impregnation pultrusion device according to claim 1, wherein: the inner cavity of the top layer mechanism is provided with an oblique angle which is 0-10 degrees.
3. The long glass fiber reinforced thermoplastic material melt impregnation pultrusion device according to claim 1, wherein: the inner cavity of the bottom layer mechanism is provided with an oblique angle which is 0-10 degrees.
4. The long glass fiber reinforced thermoplastic material melt impregnation pultrusion device according to claim 1, wherein: and a cushion block device is arranged between the top layer mechanism and the bottom layer mechanism.
5. The long glass fiber reinforced thermoplastic material melt impregnation pultrusion device according to claim 1, wherein: the height adjusting device is arranged at the left end and the right end of the top layer mechanism and the bottom layer mechanism and comprises an upper fixing plate and a lower fixing plate which are connected and fixed through adjusting bolts.
6. The long glass fiber reinforced thermoplastic material melt impregnation pultrusion device according to claim 1, wherein: the top extrusion and drawing linkage die heads and the bottom extrusion and drawing linkage die heads are horizontally overlapped and staggered, and the rotation directions of the top extrusion and drawing linkage die heads and the bottom extrusion and drawing linkage die heads are opposite.
7. The long glass fiber reinforced thermoplastic material melt impregnation, extrusion and pulling device as defined in claim 6, wherein: the driving device is a single driving source, the unidirectional driving of the top extrusion drawing linkage die head or the bottom extrusion drawing linkage die head is directly realized through the driving gear, the driving device is meshed with the driving gear and is provided with the driven gear, the driving gear and the driven gear are in reversing meshing arrangement, and the steering directions of the driving gear and the driven gear are opposite.
8. The long glass fiber reinforced thermoplastic material melt impregnation, extrusion and pulling device as defined in claim 7, wherein: driven chain wheels are arranged at the end parts of the top extrusion and drawing linkage die heads or the bottom extrusion and drawing linkage die heads, and the driven chain wheels on the top extrusion and drawing linkage die heads are in surrounding linkage through top chains; a plurality of driven chain wheels on the bottom extrusion-pulling linkage die head are in surrounding linkage through a bottom chain; the top chain and the bottom chain are provided with tensioning devices.
9. The long glass fiber reinforced thermoplastic material melt impregnation pultrusion device according to claim 1, wherein: the inside of the axle center of the top extrusion drawing linkage die head and the bottom extrusion drawing linkage die head is hollow structure, and a heater is arranged in the axle center.
10. The long glass fiber reinforced thermoplastic material melt impregnation pultrusion device according to claim 1, wherein: the top extrusion and drawing linkage die head is arranged for a variable-diameter revolving body structure and is provided with a large-diameter area and a small-diameter area; the bottom extrusion-drawing linkage die head is arranged for a variable-diameter revolving body structure and is provided with a large-diameter area and a small-diameter area; the top extrusion and drawing linkage die head and the bottom extrusion and drawing linkage die head are complementarily assembled and arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310267787.7A CN116061470A (en) | 2023-03-20 | 2023-03-20 | Long glass fiber reinforced thermoplastic material melting, dipping, extruding and pulling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310267787.7A CN116061470A (en) | 2023-03-20 | 2023-03-20 | Long glass fiber reinforced thermoplastic material melting, dipping, extruding and pulling device |
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| CN116061470A true CN116061470A (en) | 2023-05-05 |
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| CN202310267787.7A Pending CN116061470A (en) | 2023-03-20 | 2023-03-20 | Long glass fiber reinforced thermoplastic material melting, dipping, extruding and pulling device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116512642A (en) * | 2023-07-05 | 2023-08-01 | 河北润晟复合材料有限公司 | Composite high-strength glass fiber reinforced plastic pultruded profile and preparation method thereof |
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2023
- 2023-03-20 CN CN202310267787.7A patent/CN116061470A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116512642A (en) * | 2023-07-05 | 2023-08-01 | 河北润晟复合材料有限公司 | Composite high-strength glass fiber reinforced plastic pultruded profile and preparation method thereof |
| CN116512642B (en) * | 2023-07-05 | 2023-09-12 | 河北润晟复合材料有限公司 | Composite high-strength glass fiber reinforced plastic pultruded profile and preparation method thereof |
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