CN219748973U - Long fiber thermoplastic composite material linkage impregnating equipment - Google Patents
Long fiber thermoplastic composite material linkage impregnating equipment Download PDFInfo
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- CN219748973U CN219748973U CN202320539457.4U CN202320539457U CN219748973U CN 219748973 U CN219748973 U CN 219748973U CN 202320539457 U CN202320539457 U CN 202320539457U CN 219748973 U CN219748973 U CN 219748973U
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- 239000002131 composite material Substances 0.000 title claims abstract description 26
- 229920001431 Long-fiber-reinforced thermoplastic Polymers 0.000 title claims abstract description 19
- 230000005540 biological transmission Effects 0.000 claims abstract description 59
- 239000000463 material Substances 0.000 claims abstract description 45
- 230000004927 fusion Effects 0.000 claims abstract description 23
- 238000007790 scraping Methods 0.000 claims abstract description 22
- 230000007704 transition Effects 0.000 claims abstract description 13
- 239000012530 fluid Substances 0.000 claims abstract description 10
- 238000001125 extrusion Methods 0.000 claims description 83
- 230000007246 mechanism Effects 0.000 claims description 60
- 238000010438 heat treatment Methods 0.000 claims description 51
- 238000007598 dipping method Methods 0.000 claims description 21
- 230000001360 synchronised effect Effects 0.000 claims description 14
- 239000000835 fiber Substances 0.000 abstract description 23
- 238000000034 method Methods 0.000 abstract description 21
- 230000008569 process Effects 0.000 abstract description 18
- 238000002156 mixing Methods 0.000 abstract description 17
- 239000002657 fibrous material Substances 0.000 abstract description 12
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- 238000002844 melting Methods 0.000 abstract description 4
- 230000008018 melting Effects 0.000 abstract description 4
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- 239000004033 plastic Substances 0.000 description 5
- 229920005989 resin Polymers 0.000 description 5
- 239000011347 resin Substances 0.000 description 5
- 229920000049 Carbon (fiber) Polymers 0.000 description 4
- 239000004917 carbon fiber Substances 0.000 description 4
- 238000001514 detection method Methods 0.000 description 4
- 239000012768 molten material Substances 0.000 description 4
- 210000001503 joint Anatomy 0.000 description 3
- 239000012803 melt mixture Substances 0.000 description 3
- 238000010008 shearing Methods 0.000 description 3
- 239000012815 thermoplastic material Substances 0.000 description 3
- 229920005992 thermoplastic resin Polymers 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000032683 aging Effects 0.000 description 2
- 238000003763 carbonization Methods 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 238000006731 degradation reaction Methods 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
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- 230000006872 improvement Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 239000000155 melt Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000004513 sizing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 238000001802 infusion Methods 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000010309 melting process Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
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- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The utility model discloses a long fiber thermoplastic composite material linkage impregnation device, which comprises a combined pushing device, a transition device, an impregnation fusion device and a temperature control module; the combined pushing device is internally provided with a fluid material runner, a transmission roller and a driven roller, a scraping body is arranged between the transmission roller and the driven roller, the transmission roller and the driven roller synchronously extrude the scraping body to continuously fit with the transmission roller and realize material pushing, the materials are prevented from being adhered to the transmission roller and the driven roller in the pushing process, the materials are continuously pushed through the arc-shaped concave-convex surfaces, and fiber breakage in the materials can be effectively prevented; the impregnating fusion device comprises a working box body, wherein the working box body is matched with a driving device to drive the top extruding and pulling linkage die head and the bottom extruding and pulling linkage die head, and the extruding and pulling linkage die head adopts reducing and up-down arrangement concave-convex matching arrangement, so that the long fiber material can be effectively prevented from being torn and mixed unevenly, and the even mixing of the melting material and the long fiber material is ensured.
Description
Technical Field
The utility model relates to the technical field of mixing, conveying and dip forming of long fiber reinforced thermoplastic composite materials, in particular to long fiber reinforced thermoplastic composite material linkage dip equipment and an operation method.
Background
In the production process of the long fiber reinforced thermoplastic materials widely adopted at home at present, a great amount of long fibers are torn in the shearing and mixing process of the long fiber materials in the melting plasticizing cavity, so that the sheared fiber materials have the problems of too many short fibers and fewer long fibers, and the average length of the fibers in the injection molding process products is difficult to meet the process requirements of the composite material part products on the strength and the toughness, therefore, the blending and conveying process after the shearing of the fiber materials becomes a great obstacle for restricting the further improvement of the performance of the composite material part products, and a stable and continuous pushing mechanism is necessary in the blending and conveying process.
Meanwhile, the most commonly used in the industrial field at present is an extrusion melting impregnation process, the method has simple equipment and high production efficiency, continuous production can be realized, but the problems of high melt viscosity of a thermoplastic resin matrix and difficult fiber impregnation exist in the use process, especially carbon fibers, the fiber diameter of the carbon fibers is smaller, and most sizing agents on the surfaces of commercial carbon fibers are designed for epoxy resin matrixes, and the compatibility of the sizing agents and the thermoplastic resin is poor, so that the carbon fibers are more difficult to impregnate by the resin; in addition, the long residence time in the mold can lead to degradation and carbonization of the resin at high temperature, so that the service performance of the finished product of the composite material is reduced, and meanwhile, the energy consumption is relatively high under the continuous high-temperature condition.
Summarizing the disadvantages in the prior art: 1. the problem of long fiber breakage in the mixing and conveying process after the fiber materials are sheared cannot be solved; 2. the whole stable conveying of the materials cannot be realized; 3. in the extrusion and melt impregnation process, the melt viscosity of the thermoplastic resin matrix is high, and the fiber is difficult to impregnate; 4. avoiding fiber breakage during fiber transport in the extrusion melt impregnation process.
Disclosure of Invention
The utility model aims at solving at least the following technical problems existing in the prior art or related technologies:
(1) In the prior art, the problems of mixing and conveying the long fiber reinforced thermoplastic composite material after the long fiber material is sheared are solved, and the aging of the material caused by fiber breakage and material adhesion on high-temperature equipment are avoided as much as possible in the conveying process;
(2) The problem of uneven impregnation and dispersion of a long fiber reinforced thermoplastic composite material in a die structure and fiber breakage in the prior art;
(3) The impregnation problem under high resin viscosity and the temperature control problem of heat-sensitive aggregate in the prior art.
The scheme disclosed by the utility model is expressed as follows:
a long fiber thermoplastic composite material linkage impregnating device at least comprises a combined pushing device, a transition device and an impregnating fusion device; the device is erected through a supporting device; the combined pushing device and the dipping fusion device are provided with temperature control devices;
the combined pushing device comprises an upper module, a lower module, a transmission module and a power device; a fluid material flow passage is arranged between the upper module and the lower module;
an upper roller cavity is arranged in the upper module, a lower roller cavity is arranged in the lower module, and the upper roller cavity and the lower roller cavity are combined and then penetrate through the fixed transmission roller in the upper module; the rear side of the transmission roller is provided with a driven roller, the outer surfaces of the transmission roller and the driven roller are uniformly provided with a plurality of arc-shaped concave-convex surfaces, a scraping body is arranged between the transmission roller and the driven roller, the transmission roller and the driven roller reversely rotate, and the transmission roller and the driven roller synchronously extrude the scraping body to continuously fit the transmission roller; heating devices are arranged on the upper module and the lower module;
the dipping fusion 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 connected into a whole to form 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; and a cushion block is arranged between the top layer mechanism and the bottom layer mechanism.
The power module is arranged on the upper module or the lower module and comprises a speed regulation driving device which is connected with the transmission module through a driving shaft, and the transmission module is provided with a driving gear and a transmission roller; the linkage module is arranged at the rear side of the driving gear and comprises a driven gear and a driven roller; the driving gear and the driven gear are meshed to realize reverse driving.
The two driving gears are respectively arranged at the left side and the right side of the transmission roller, the number of the driven gears is two, and the two driven gears are respectively meshed with the two driving gears; each driven gear is respectively and correspondingly provided with a driven roller.
The top of upper portion module be provided with a heating storehouse, be provided with the heating pipe in the heating storehouse, for the inside heat supply of heating storehouse through the heating pipe. The heating bin is arranged right above the fluid material flow channel and the upper roller cavity.
The lower module is fixedly provided with a plurality of spiral heaters, and the whole heating of the lower module is realized through the spiral heaters.
And the upper module or the lower module is provided with a heating area at the material inlet, and the heating at the material inlet is realized through the heating area.
The scraper is characterized in that a guide groove is formed in the upper module or the lower module, a guide protrusion is arranged on the scraping body, and the guide protrusion is matched with the guide groove to realize horizontal movement guide of the scraper.
The top surface of upper portion module on be provided with the lifting hook, realize this long fiber reinforced thermoplastic material and mix the hoist and mount of linkage pushing equipment through the lifting hook.
The upper module and the lower module are respectively provided with a temperature detection port, and temperature data are measured through the temperature detection ports so as to realize the work control of the heating device.
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 working box body is internally provided with a plurality of heating devices for heating the material running area inside the working box body.
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 beneficial effect that this device had is:
the equipment comprises a combined pushing device, a transition device, an impregnating fusion device and a temperature control module; the combined pushing device comprises an upper module, a lower module, a transmission module and a power module; a fluid material flow channel, a transmission roller and a driven roller are arranged between the upper module and the lower module, a scraping body is arranged between the transmission roller and the driven roller, the transmission roller and the driven roller rotate in opposite directions, the scraping body is synchronously extruded by the transmission roller and the driven roller to continuously fit with the transmission roller, and meanwhile, material pushing is realized, materials are prevented from being adhered to the transmission roller and the driven roller in the pushing process, the materials are continuously pushed through an arc-shaped concave-convex surface, and fiber breakage in the materials can be effectively prevented;
the dipping fusion device comprises a top layer mechanism and a bottom layer mechanism, wherein the two layers of structures are butted to form a working box body integrally, a driving device is arranged on the working box body to drive an internal top extrusion-drawing linkage die head and a bottom extrusion-drawing linkage die head, and the extrusion-drawing linkage die head is arranged in a variable diameter and up-down concave-convex matching manner, so that the long fiber materials can be effectively prevented from being torn off and unevenly mixed, the shearing and mixing length of the long fiber materials can be ensured to the greatest extent, the even mixing of molten materials and the long fiber materials is ensured to the greatest extent, and the mechanical strength, the high temperature performance and the impact resistance of a long fiber composite material product are effectively improved;
the device is also provided with the temperature control modules on the combined pushing device and the impregnating fusion device, and the working temperature of each working position is accurately controlled through the temperature control modules, so that the degradation and carbonization of the resin at improper high temperature caused by long residence time in the die are avoided, the service performance of a composite material finished product is reduced, the continuous high-temperature condition is avoided, and the energy consumption is reduced.
Drawings
FIG. 1 is a schematic perspective view of the present utility model;
FIG. 2 is a schematic diagram of the internal structure of the front view of the present utility model;
FIG. 3 is a schematic perspective view of a combined pushing device according to the present utility model;
FIG. 4 is a schematic view of a cross-sectional front view of the combined propulsion apparatus of the present utility model;
FIG. 5 is a schematic view showing the internal perspective structure of the combined pushing device of the utility model;
FIG. 6 is an enlarged schematic view of the sectional structure of the area A in FIG. 2;
FIG. 7 is an enlarged schematic view of the cross-sectional structure of the region B in FIG. 2;
FIG. 8 is an enlarged schematic view of the cross-sectional structure of the region C in FIG. 2;
FIG. 9 is an enlarged schematic view of the cross-sectional structure of the region D in FIG. 5;
FIG. 10 is a schematic diagram of a combined propulsion device control system;
FIG. 11 is a schematic diagram of a control system for an immersion fusion apparatus;
FIG. 12 is a schematic diagram of the bottom assembly of a top and bottom extrusion die;
FIG. 13 is a schematic diagram of the top assembly of a top and bottom extrusion die;
FIG. 14 is a schematic diagram of a cross-sectional configuration of a top and bottom extrusion die;
FIG. 15 is a schematic view of a schematic cross-sectional front view of an infusion fusion device;
FIG. 16 is a schematic view of the inclined structure of the inner cavities of the top layer mechanism and the bottom layer mechanism.
In the figure, 1, support frame body, 10, horizontal cushion pad, 101, vertical elastic composite body, 102, vertical support, 103, vertical plastic support body, 11, vertical cushion pad, 111, horizontal elastic composite body, 112: a horizontal plastic support; 12: the device comprises an impregnating molding controller, 121, an inlet temperature sensing point, 122, an outlet temperature sensing point, 13, a mixing conveying controller, 131, a front side temperature sensing point, 132, a rear side temperature sensing point, 2, a combined pushing device, 21, a feeding heating bin, 211, a heating pipe, 22, a transmission module, 221, a transmission roller, 222, a driving shaft, 223, a driving shaft, 224, an outer driving gear, 225 and an inner driving gear; 23. the device comprises a linkage module 231, an outer driven roller 232, an inner driven roller 233, a shaft sleeve fixing seat 234, an outer driven gear 235 and an inner driven gear; 24. an upper module 240, upper roller cavities 241, fluid material flow channels; 25. lower module, 250, lower roller cavity, 251, lower module temperature detection point, 26, spiral heater, 261, connecting screw, 262, middle heating core, 27, active zone, 271, guide slot, 28, feed inlet, 281, feed heating zone, 29, discharge outlet, 3, transition device, 4, dip fusion device, 41, top layer mechanism, 411, upper driven sprocket, 412, top chain, 413, rising tight pulley, 414, drive gear, 415, dip feed inlet, 416, dip discharge outlet, 417, top squeeze pull linkage die, 418, heightened pad, 419, upper sync pull groove, 42, bottom layer mechanism, 421, lower driven sprocket, 422, bottom chain, 423, lower tension pulley, 424, driven gear, 425, bottom squeeze pull linkage die, 426, spiral heater, 427, lower sync pull groove, 5, push drive motor, 51, dip drive motor, 6, doctoring body, 61, drive roller, 62, side flighting, 63, guide boss, 7, roll cutting device, 8, adjustment screw, 9, 91, 92, diameter zone, heating die, 93, diameter zone.
Detailed Description
Embodiments of the present utility model will be described below with reference to specific examples.
The long fiber thermoplastic composite material linkage impregnating equipment comprises a supporting frame body 1, wherein a joint pushing device 2, a transition device 3 and an impregnating fusion device 4 are supported and fixed through the supporting frame body 1, and a roll cutting forming device 7 is connected to the rear side of the impregnating fusion device 4 to cut off formed conforming materials.
Because the equipment is formed by connecting all modules, the functions among the modules are independent, and in order to enable a person skilled in the art to understand the technical scheme more easily, the structure and the independent operation of the modules are described as follows:
when the equipment operates, extrusion conveying of materials is realized through the combined pushing device, and ageing of the materials caused by fiber breakage and material adhesion on high-temperature equipment in the conveying process is avoided as much as possible, and the specific structure and the operation mode are as follows: the combined propulsion device 1 comprises an upper module 24 and a lower module 255, a transmission module 22 and a propulsion drive motor 5; after the upper module 24 and the lower module 255 are butted up and down, a sealing device is arranged between the upper module and the lower module to realize sealing. An upper groove is provided between the upper module 24 and the lower module 255, through which the fluid material flow channel 241 is formed; an upper roller cavity 240 is disposed in the upper module 24, a lower roller cavity 250 is disposed in the lower module 25, and the upper roller cavity 240 and the lower roller cavity are combined to penetrate through the transmission roller 221 in the fixed transmission module 22; the rear side of the driving roller 221 is provided with two driven rollers, and the two driven rollers are arranged at left and right intervals.
The surface of transmission gyro wheel 221 and driven gyro wheel all equipartition is provided with a plurality of arc concave-convex surfaces, is provided with between transmission gyro wheel and the driven gyro wheel and strikes off body 6, and when transmission gyro wheel 221 and driven gyro wheel rotated simultaneously, when transmission gyro wheel 221 pushed forward the material backward, the synchronous extrusion of arc concave-convex surface on outside driven gyro wheel 231 and the inboard driven gyro wheel 232 strikes off the body laminating and continuously laminate transmission gyro wheel 221, will be heated the material of adhesion on transmission gyro wheel 221 and clear away, prevent its adhesion on transmission gyro wheel 221. The device is provided with heating means on both the upper module 24 and the lower module 25 to provide operating temperature for the operation of the whole apparatus.
After the structure is arranged, the device realizes synchronous reverse rotation of the transmission roller 221 and the driven roller under the driving of the pushing driving motor 5, thereby realizing the same-direction driving of materials and simultaneously realizing the material removal on the transmission roller 221.
In this technical solution, a more concise driving manner is provided, and the purpose of the driving manner is to realize synchronous reverse rotation of the driving roller 221 and the driven roller under the driving of a single power module, and the specific driving principle is as follows: the push driving motor 5 is disposed on the lower module 25, a driving shaft 223 extends from a gear box of the push driving motor 5, the driving shaft 223 is connected with the transmission module 22, as shown in fig. 5 and 9, an outer driving gear 224 and an inner driving gear 225 are disposed on the transmission module 22, and a transmission roller 221 is disposed between the outer driving gear 224 and the inner driving gear 225, and the transmission roller 221 is disposed between the upper roller cavity 240 and the lower roller cavity 250. The outer driving gear 224 and the inner driving gear 225 are fixed to both left and right sides of the lower module 25.
Two linkage modules 23 are arranged at the rear sides of the outer driving gear 224 and the inner driving gear 225, the linkage modules 23 are symmetrically fixed on the lower module 25 through shaft sleeve fixing seats 233, and each linkage module 23 is provided with a driven roller and a driven gear, namely an outer driven roller 231, an inner driven roller 232, an outer driven gear 234 and an inner driven gear 235. The outer driven gear 234 and the inner driven gear 235 are engaged with the outer driving gear 224 and the inner driving gear 225, respectively, to achieve driving. Note that, the driving gear and the driven gear mesh described herein are shaped gear meshes, and the mesh is required to complete reverse driving, by which the rotation of the outside driven roller 231 and the inside driven roller 232 in the opposite direction to the transmission roller 221 is achieved. In order to ensure the horizontal stability of the scraping body 6 during driving, the lower module 25 is provided with a movable area 27, a guide groove 271 is arranged in the movable area 27, the scraping body 6 is provided with a transmission roller scraping plate 61 and a guide protrusion 63, the guide protrusion 63 is matched with the guide groove 271, and the transmission roller scraping plate 61 horizontally moves and guides through the cooperation of the guide protrusion 63 and the guide groove 271. As shown in fig. 6, the scraping body 6 includes a driving roller scraping plate 61 and side scraping plates 62 on the left and right sides, guide protrusions 63 are provided on the rear sides of the side scraping plates 62, the side scraping plates 62 are respectively pressed against the outer driven roller 231 and the inner driven roller 232, and the driving roller scraping plate 61 is in pressing contact with the driving roller 221, so that the whole scraping body 6 horizontally moves in the movable area 27.
Through the above driving structure, synchronous rotation of the outer driven roller 231, the inner driven roller 232 and the transmission roller 221 can be realized under the same driving source, and the rotation directions of the outer driven roller 231 and the inner driven roller 232 are opposite to the rotation direction of the transmission roller 221, so that the upward and downward force application driving of materials is realized. Further technical improvement, the device is provided with a feeding heating zone 281 at the joint of the upper module 24 and the lower module 25, a spiral heater 26 is inserted in the feeding heating zone 281, and the first-step heating is realized through the feeding heating zone 281.
The top of the upper module 24 is provided with a feeding heating bin 21, a plurality of heating pipes 211 are arranged in the feeding heating bin 21, and the heating pipes 211 are used for supplying heat to the inside of the feeding heating bin 21. The feed heating bin 21 is disposed directly above the fluid material channel 241 and the upper roller cavity 240, and provides temperature assurance for material circulation.
A plurality of spiral heaters 26 are horizontally fixed on the lower module 25, and the whole heating of the lower module 25 is realized through the spiral heaters 26. In order to cooperate with the normal operation of the heating device, the device is characterized in that a front side temperature sensing point 131 and a rear side temperature sensing point 132 are respectively fixed on a feed inlet 28 and a discharge outlet 29 and are connected with a mixing and conveying controller 13, and the heating of a feeding heating zone 281, a feeding heating bin 21 and a spiral heater 26 is flexibly controlled through the mixing and conveying controller 13.
The above-mentioned spiral heater 26 is, as shown in fig. 14, provided with a long bar-shaped structure, and includes a bar-shaped spiral heating body, the outer diameter of the spiral heating body is provided with a connecting thread 261, each part of the spiral heating body is provided with a middle heating core 262, the inside of the spiral heating body can be communicated with an external heating wire or an external heat conducting oil to heat the middle heating core 262, and the connecting thread 261 can be used as an annular protrusion to effectively improve the heating efficiency.
When the equipment operates, the fusion device 4 is used for realizing the fusion of fibers in the materials and viscous molten materials, and simultaneously, the problems of uneven impregnation and dispersion and fiber breakage of the materials in a die structure are placed in the melting process, and meanwhile, the impregnation problem under the high resin viscosity and the temperature control problem of thermosensitive aggregates are solved; the specific structure and operation mode are described as follows:
the dipping fusion device 4 comprises a top layer mechanism 41 and a bottom layer mechanism 42 with square structures, the two layers are in butt joint with each other to form a working box body after being locked, a dipping feed port 415 and a dipping discharge port 416 are arranged on the formed working box body, a height adjusting device is arranged between the top layer mechanism 41 and the bottom layer mechanism 42 and used for fine adjustment of the size of a working cavity inside the working box body, and materials with different viscosities are extruded and conveyed through fine adjustment.
The bottom of the top layer mechanism 41 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 41 is uniformly provided with a plurality of upper synchronous extrusion and pulling grooves 419, the gap between the upper synchronous extrusion and pulling grooves 419 and the top extrusion and pulling linkage die head 417 is 2 millimeters, and the inclination angle of the bottom of the body of the top layer mechanism 41 is 0-10 degrees, and in the embodiment, the angle of 5 degrees is preferable.
The top of the bottom layer mechanism 42 is also provided with an inner cavity, the inner cavity is provided with an oblique angle from left to right, the top of the body of the bottom layer mechanism 42 is provided with a lower synchronous extrusion slot 427, the gap between the lower synchronous extrusion slot 427 and the bottom extrusion linkage die head 425 is 2 mm, and the inclination angle of the bottom of the body of the bottom layer mechanism 42 is 0-10 degrees, and in this embodiment, the preferred 5 degrees angle is set. The inclined states of the bottom layer mechanism 42 and the top layer mechanism 41 described above are shown in fig. 15 and 16.
The above-mentioned gaps of 2 mm can scrape off the materials adhered to the top extrusion drawing linkage die head 417 and the bottom extrusion drawing linkage die head 425 through the synchronous extrusion drawing grooves respectively, so as to prevent excessive adhesion of the materials.
After the above structure is set, in the embodiment of the present utility model, after the top layer mechanism 41 and the bottom layer mechanism 42 are combined, a channel capable of containing the molten material to circulate is formed between the two mechanisms, the shape of the channel is bucket-shaped or horn-shaped, and the direction of the opening formed by the channel (the opening on the right side) is the direction along which the material fluid flows; the simultaneous extrusion slot is a smooth regular concave-convex arcuate surface that conforms to the outer contours of the top extrusion die 417 and the bottom extrusion die 425, respectively. The melt and the long fiber material enter a long fiber dipping and mixing device runner through a dipping feed port 415, 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 417 and a bottom extrusion and pulling linkage die 425, the melt mixture and the long fiber material are fully dipped and mixed, and the melt mixture after the dipping and mixing is carried out enters the next process through a dipping discharge port 416.
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 417 and a bottom extrusion and drawing linkage die head 425; because this device has the function of finely tuning the size of the working chamber inside the working box, so be provided with between its top layer mechanism 41 and the bottom layer mechanism 42 and increase gasket 418, can finely tune the joint seam of this working box through increasing gasket 418. In order to achieve the fine tuning function, the height adjusting device is disposed at four corners of the left and right ends of the joint of the top layer mechanism 41 and the bottom layer mechanism 42, and the top layer mechanism 41 and the bottom layer mechanism 42 are correspondingly provided with an upper fixing plate and a lower fixing plate at the four corners, and are fixedly connected with each other by the adjusting bolts 8.
Further, the overall structure of the top extrusion-pulling linkage die 417 and the bottom extrusion-pulling linkage die 425 disclosed in the device is the same, as shown in fig. 12-16, both extrusion-pulling linkage dies are in a variable-diameter revolving structure, and comprise a die body 9, and the die body 9 is provided with a smooth large-diameter region 91 and a smooth small-diameter region 92; in assembly, the top extrusion and pulling linkage die 417 and the bottom extrusion and pulling linkage die 425 are complementarily assembled, the large diameter area 91 and the small diameter area 92 are in butt joint to realize assembly, as shown in fig. 12 and 13, the top extrusion and pulling linkage die 417 is arranged at the upper part, the bottom extrusion and pulling linkage die 425 is arranged at the lower part, the large diameter area 91 of the top extrusion and pulling linkage die 417 corresponds to the small diameter area 92 of the bottom extrusion and pulling linkage die 425, the small diameter area 92 of the top extrusion and pulling linkage die 417 corresponds to the large diameter area 91 of the bottom extrusion and pulling linkage die 425, and the upper die body 9 and the lower die body are overlapped in thickness to realize 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.
In operation, the top extrusion and drawing linkage die heads 417 and the bottom extrusion and drawing linkage die heads 425 which are arranged in a staggered mode are horizontally overlapped, and the rotation directions of the top extrusion and drawing linkage die heads 417 and the bottom extrusion and drawing linkage die heads 425 are opposite, so that the structure not only can realize material driving in the same direction, but also can realize that materials are pulled and rubbed to the greatest extent under a soft state to realize mixing with fibers, and long fibers are prevented from being cut off without pulling. To achieve the above actions, in this embodiment, the top extrusion drawing die 417 and the bottom extrusion drawing die 425 may be independently driven by two sets of driving systems, but such driving methods are 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 gear 414 is driven by the immersion driving motor 51 to directly realize unidirectional driving of the top extrusion and pulling linkage die 417, the driven gear 424 is meshed with the driving gear 414, the driving gear 414 and the driven gear 424 are in reversing and meshed arrangement, and the directions of the driving gear 414 and the driven gear 424 are opposite (the directions of the driving force are opposite).
After the above configuration, the linkage structure of the top extrusion drawing linkage die 417 and the bottom extrusion drawing linkage die 425 is described as follows: taking the driving of the top extrusion and pulling linkage die heads 417 as an example, the end parts of the top extrusion and pulling linkage die heads 417 are all provided with upper driven chain wheels 411, and the upper driven chain wheels 411 on the top extrusion and pulling linkage die heads are linked through top chain rings 412. The bottom squeeze-and-pull linkage die head realizes linkage driven by the bottom chain 422 in the same structure. The top chain 412 and the bottom chain 422 are provided with tensioning devices, the tensioning devices are respectively an upper tensioning wheel 413 and a lower tensioning wheel 423, the two tensioning devices are identical in structure, the two tensioning devices respectively comprise a tensioning wheel supporting frame used for being connected with the side wall of the working box body, and the upper tensioning wheel 413 and the lower tensioning wheel 423 are respectively fixed on the chain to realize chain tension support so as to prevent the chain from loosening.
As shown in fig. 11, with further technical optimization, the optimized long glass fiber reinforced thermoplastic material melting, dipping, extruding and pulling device of the utility model is provided with a plurality of temperature sensing devices (an inlet temperature sensing point 121 and an outlet temperature sensing point 122) on the front end inlet transition device 3 and the position of the dipping discharging hole 416 of the long fiber dipping and mixing device respectively, the device is connected with the dipping and forming controller 12 through a multi-point fixed sensor, the heating control is realized through the plurality of spiral heaters 26 of the dipping and forming controller 12, which are connected with the top layer mechanism 41 and the bottom layer mechanism 42, and the whole temperature of the operation area can reach the temperature requirements of different molten materials in conveying through multi-point detection.
To further improve the heating efficiency, the top extrusion drawing linkage die 417 and the bottom extrusion drawing linkage die 425 are both hollow and internally provided with a spiral heater 26.
Still further, when the long fiber impregnation mixing device needs to adjust the lifting height, the top layer mechanism 41 is first lifted by the lifting device, the bottom layer mechanism 42 is kept still, and one or more height increasing gaskets 418 are placed between the top layer mechanism 41 and the bottom layer mechanism 42 according to the lifting height requirement to control the lifting height. After the gap between the top layer mechanism 41 and the bottom layer mechanism 42 is determined, locking and positioning are achieved through the adjusting bolts 8. From the above description, those skilled in the art will readily implement this.
The device is also used for improving the running stability of equipment, as shown in fig. 2, a horizontal buffer pad 10 and a vertical buffer pad 11 are respectively arranged between the pushing device 2 and the supporting frame body, between the pushing device 2 and the transition device 3 and between the transition device 3 and the dipping fusion device 4, the horizontal buffer pad 10 comprises a vertical elastic composite body 101, a vertical support 102 and a vertical plastic support body 103, the vertical buffer pad 11 comprises a horizontal elastic composite body 111, a horizontal plastic support body 112 and a horizontal plastic support body 113, and through the use of the horizontal buffer component and the vertical buffer component, the acting force in the horizontal direction generated in the running process of the combined pushing device 2 and the dipping fusion device 4 can be counteracted by the combined action; and simultaneously, the device is also used for jointly counteracting the acting force in the vertical direction generated in the running process between the combined pushing device 2 and the transition device 3 and between the transition device 3 and the dipping fusion device 4.
In the device, the transition device 3 is used for connecting the combined pushing device 2 with the dipping fusion device 4, and maintaining the temperature in the material conversion process through the temperature of the heat preservation structure, so that the temperature in the fluid transition conversion process of the molten mixture is maintained at 200-250 ℃, and stable conditions are provided for stable processing of materials.
Claims (8)
1. The utility model provides a long fiber thermoplastic composite linkage impregnating apparatus which characterized in that: it at least comprises a combined pushing device and a transition device and an impregnating fusion device; the combined pushing device and the dipping fusion device are provided with temperature control devices;
the combined pushing device comprises an upper module, a lower module, a transmission module and a power device; a fluid material flow passage is arranged between the upper module and the lower module; roller cavities are arranged in the upper module and the lower module, and the roller cavities penetrate through fixed transmission rollers; the rear side of the transmission roller is provided with a driven roller, the outer surfaces of the transmission roller and the driven roller are uniformly provided with a plurality of arc-shaped concave-convex surfaces, scraping bodies are arranged between the transmission roller and the driven roller, the transmission roller and the driven roller rotate reversely, and the transmission roller and the driven roller synchronously extrude the scraping bodies to continuously attach to the transmission roller; heating devices are arranged on the upper module and the lower module;
the dipping fusion device comprises a working box body consisting of a top layer mechanism and a bottom layer mechanism, and a feed inlet and a discharge outlet are arranged on the working box body; 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 inner cavities of the top layer mechanism and the bottom layer mechanism are provided with bevel angles, and synchronous extrusion and pulling grooves are arranged in the top layer mechanism and the bottom layer mechanism and are used for fixing a top extrusion and pulling linkage die head and a bottom extrusion and pulling linkage die head; the upper module or the lower module is provided with a guide groove, the scraping body is provided with a guide protrusion, and the guide protrusion is matched with the guide groove to realize horizontal movement guide of the scraping plate; 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.
2. The long fiber thermoplastic composite linked impregnating apparatus of claim 1 wherein: the power device is arranged on the upper module or the lower module, is connected with the transmission module through a driving shaft, and is provided with a driving gear and a transmission roller; the linkage module is arranged at the rear side of the driving gear and comprises a driven gear and a driven roller; the driving gear and the driven gear are meshed to realize reverse driving.
3. The long fiber thermoplastic composite linked impregnating apparatus of claim 2 wherein: the two driving gears are respectively arranged at the left side and the right side of the transmission roller, the number of the driven gears is two, and the two driven gears are respectively meshed with the two driving gears; each driven gear is respectively and correspondingly provided with a driven roller.
4. The long fiber thermoplastic composite linked impregnating apparatus of claim 1 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 a driving gear, a driven gear is meshed with the driving gear, and the driving gear and the driven gear are in reversing meshing arrangement.
5. The long fiber thermoplastic composite linked impregnating apparatus of claim 1 wherein: 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.
6. The long fiber thermoplastic composite linked impregnating apparatus of claim 1 wherein: the working box body is internally provided with a plurality of heating devices for heating the material running area inside the working box body.
7. The long fiber thermoplastic composite linked impregnating apparatus of 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.
8. The long fiber thermoplastic composite linked impregnating apparatus of claim 1 wherein: 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 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 |
|---|---|---|---|
| CN202320539457.4U CN219748973U (en) | 2023-03-20 | 2023-03-20 | Long fiber thermoplastic composite material linkage impregnating equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320539457.4U CN219748973U (en) | 2023-03-20 | 2023-03-20 | Long fiber thermoplastic composite material linkage impregnating equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219748973U true CN219748973U (en) | 2023-09-26 |
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ID=88089628
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320539457.4U Active CN219748973U (en) | 2023-03-20 | 2023-03-20 | Long fiber thermoplastic composite material linkage impregnating equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219748973U (en) |
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2023
- 2023-03-20 CN CN202320539457.4U patent/CN219748973U/en active Active
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