CN219385609U - The method comprises the following steps of: silicon carbide fiber sizing device - Google Patents

Abstract

Silicon carbide a fiber sizing device, which comprises a fiber sizing device, comprises a sizing pool, a filament outlet roller and a squeeze roller; the sizing tank is internally provided with silicon carbide sizing liquid, the wire outlet end of the sizing tank is provided with a second mounting frame, a wire outlet roller is arranged on the inner side of the second mounting frame and right above the sizing tank, the wire outlet roller is connected with the second mounting frame in a rotating way, the extrusion roller is parallel to the rotating shaft of the wire outlet roller, the extrusion device is arranged on the second mounting frame, the extrusion roller is tightly pressed on the wire outlet roller through the extrusion device, and a wire outlet for silicon carbide fibers to pass through is formed between the extrusion roller and the wire outlet roller. In summary, the silicon carbide fiber sizing device provided by the device scheme has the effect of improving the quality of the silicon carbide fiber.

Description

Silicon carbide fiber sizing device

Technical Field

The utility model relates to a silicon carbide fiber sizing device.

Background

The manufacturing process of the silicon carbide fiber is that polysilane is subjected to thermal translocation reaction, so that methyl on a side chain is led into silicon-silicon space of a main chain in a form of methylene to form polycarbosilane; then preparing a precursor by dry spinning or melt spinning; and then the inorganic fiber with excellent heat resistance and oxidation resistance is prepared by preoxidation and carbonization, which belongs to ceramic fibers. The silicon carbide fiber has excellent performances of oxidation resistance, chemical corrosion resistance, high temperature resistance, high specific strength, high specific modulus and the like, and is widely applied to the technical field of high precision tips, such as aerospace, rocket engines, nuclear fusion furnaces and the like.

However, the silicon carbide fiber monofilament after carbonization has extremely small diameter, high brittleness, easy bending and short, is not easy to collect in a bundle, seriously affects the quality of a silicon carbide fiber product, and limits the application of the silicon carbide fiber, so that different slurries are required to be selected according to the application to carry out sizing and bundling treatment on the silicon carbide.

The current silicon carbide fiber sizing equipment still adopts the design of carbon fiber sizing thought, does not optimize equipment structure to the characteristics that silicon carbide fiber after carbonization is high in brittleness, easy to bend and break, the characteristic that the burr is more and the viscosity of sizing agent on silicon carbide is higher, leads to current silicon carbide fiber sizing equipment when using, the following problem generally exists:

(1) The carbonized silicon carbide fiber has large brittleness and is easy to break, and a large amount of scattered silicon carbide fiber broken filaments can be easily accumulated in the sizing liquid in the sizing process of the silicon carbide, so that the sizing liquid is turbid; and the broken silicon carbide fibers can be reattached to the silicon carbide fibers in the sizing process, so that the quality of the product is affected.

(2) In the process of sizing the silicon carbide fiber, after moisture in the sizing roller surface slurry evaporates, the viscosity of the sizing roller surface slurry can be further increased, so that when the silicon carbide fiber passes through the sizing roller, the silicon carbide fiber is easy to be sticky and fluffed, and the quality of a silicon carbide product is affected.

(3) After the silicon carbide fiber is sized, a part of slurry is adsorbed on the surface of the silicon carbide, and when the slurry is too much, uneven sizing can be caused to influence the subsequent drying and filament collection.

(4) In the operation of the silicon carbide fiber sizing equipment, workers are required to clean accumulated silicon carbide broken wires in sizing liquid at any time and clean the sizing roller surface by wiping, so that the cleaning and wiping efficiency is low, and the labor waste can be caused.

Disclosure of Invention

The utility model solves the defects of the prior art and provides a silicon carbide fiber sizing device for improving the quality of silicon carbide fibers.

In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:

a silicon carbide fiber sizing device comprises a sizing pool, a wire outlet roller and a squeeze roller; the sizing tank is internally provided with silicon carbide sizing liquid, the wire outlet end of the sizing tank is provided with a second mounting frame, a wire outlet roller is arranged on the inner side of the second mounting frame and right above the sizing tank, the wire outlet roller is connected with the second mounting frame in a rotating way, the extrusion roller is parallel to the rotating shaft of the wire outlet roller, the extrusion device is arranged on the second mounting frame, the extrusion roller is tightly pressed on the wire outlet roller through the extrusion device, and a wire outlet for silicon carbide fibers to pass through is formed between the extrusion roller and the wire outlet roller. The sized silicon carbide fibers are wound on the filament outlet roller, and the extrusion roller extrudes the silicon carbide fibers on the filament outlet roller under the drive of the extrusion device; and the excess silicon carbide sizing agent is extruded and discharged, and the extruded silicon carbide sizing agent flows into a sizing tank, so that the recycling of the silicon carbide sizing agent is realized; the wire outlet roller is in rotary connection with the second mounting frame, so that the wire outlet roller can roll relative to the silicon carbide fiber, and extrusion quality of the silicon carbide fiber is further ensured; and the extrusion device can adjust extrusion pressure according to the quantity of the silicon carbide fibers.

In the embodiment, the extrusion device comprises an air cylinder, the extrusion roller is rotatably arranged on a bracket, one side of the bracket is hinged on the inner side of the second mounting frame, the cylinder sets up in the top of squeeze roll, the one end and the second mounting bracket of cylinder are articulated, and the opposite side articulates at the top of support. Because the extrusion roller is rotatably arranged on the bracket, the extrusion mixing energy rolls relative to the silicon carbide fiber wound on the filament outlet roller, so that the extrusion quality of the silicon carbide fiber is ensured; and the extrusion pressure can be adjusted by the cylinder.

In this embodiment, a rubber layer is provided on the pressing surface of the pressing roller. Because the rubber layer is arranged on the extrusion surface of the extrusion roller, the extrusion roller flexibly extrudes the silicon carbide fiber wound on the filament outlet roller, so that the extrusion quality of the silicon carbide fiber is further ensured, and the situation that the extrusion roller breaks filaments when extruding the silicon carbide fiber is greatly reduced; and the rubber layer of the extrusion roller extrudes bundled silicon carbide fibers into a plane, and meanwhile, the silicon carbide sizing liquid in the silicon carbide fibers sufficiently performs sizing on each silicon carbide monofilament, and further extrudes and discharges redundant silicon carbide sizing liquid, so that the condition of uneven sizing inside and outside the silicon carbide fibers is avoided, and the bundled silicon carbide fibers are further processed.

In this embodiment, still include the shower nozzle, the shower nozzle is installed to second mounting bracket inboard, play filament roll below, the extrusion face of filament roll is aimed at to the shower nozzle, the shower nozzle import lets in the last thick liquid of carborundum. The spray nozzle sprays the slurry on the silicon carbide to wet the extrusion surface of the filament outlet roller, so that the increase of the viscosity of the slurry on the silicon carbide on the extrusion surface of the filament outlet roller due to the evaporation of water is avoided, so as to avoid the situation that the silicon carbide fiber is stuck by the silicon carbide upper slurry with high viscosity and the yarn is fuzzed when passing through the yarn-outlet roller; meanwhile, the spray head can wash away broken wires and other impurities remained after the silicon carbide fibers on the filament outlet roller are extruded; and the silicon carbide sizing liquid on the filament outlet roller finally flows into a sizing tank, so that the reutilization of the silicon carbide sizing liquid is realized.

In this embodiment, the drainage plate has been arranged to second mounting bracket inboard, shower nozzle below, drainage plate one end is installed inboard, the play silk roller bottom of second mounting bracket, the drainage plate other end sets up on the starching pool goes out the silk end. Through the setting of drainage plate for shower nozzle spun carborundum goes up thick liquid and falls on the drainage plate at last, finally flows into the sizing tank through the drainage plate, avoids carborundum to go up thick liquid and directly falls into the sizing tank and causes splashing, causes extravagant and influences sizing quality.

In the embodiment, the device also comprises a slurry circulating system, wherein the slurry circulating system comprises a circulating pump and a filtering device; the bottom of the sizing tank and the wire inlet end are provided with a slurry inlet, the bottom of the sizing tank and the wire outlet end are provided with a slurry outlet, a detachable filter screen is arranged in the slurry outlet, the outlet of the circulating pump is connected with the inlet of the three-way pipe, the first export of three-way pipe is through the pipeline connection shower nozzle import, the second export of three-way pipe is through the pipeline connection inlet, the outlet is through the pipeline connection filter equipment import, and the filter equipment export is through the pipeline connection circulating pump import. The detachable filter screen filters broken filaments of large silicon carbide fibers and accumulates the large broken filaments at the detachable filter screen; the filtering device filters small broken silicon carbide fibers and other particle impurities, and the silicon carbide sizing liquid entering the circulating pump is filtered twice through the detachable filter screen and the filtering device, so that the quality of the recycled silicon carbide sizing liquid is improved, and the influence on the quality of the silicon carbide fibers due to the fact that broken silicon carbide fibers are reattached to the silicon carbide fibers in the sizing process is avoided.

In this embodiment, on the sizing tank lateral wall, advance the silk end and be provided with into thick liquid seat, advance thick liquid seat width and sizing tank width assorted, advance the import and advance thick liquid mouth of thick liquid seat and be connected, advance thick liquid seat towards sizing tank one side evenly to be provided with a plurality of exports, the export is gone out silk end and is inclined towards sizing tank bottom setting towards sizing tank. The pulp inlet is arranged towards the filament outlet end of the sizing tank and is deviated to the bottom of the sizing tank. So the filtered silicon carbide sizing liquid is sprayed out towards the wire outlet end of the sizing tank and is deviated to the bottom of the sizing tank, and the flow speed of the silicon carbide sizing liquid is adjusted, so that the silicon carbide sizing liquid mainly flows at the bottom of the sizing tank, and the broken wires of the silicon carbide fibers in the sizing tank can be flushed to the detachable filter screen to be accumulated, thereby being convenient for cleaning; but also can avoid the direct impact of the sprayed silicon carbide upper slurry on the silicon carbide fiber and influence the quality of the silicon carbide fiber. The silicon carbide upper slurry sprayed out of the spray head comes from the filtered silicon carbide upper slurry flowing out of the circulating pump, so that the silicon carbide upper slurry sprayed on the spinning roller is ensured to contain no impurities, and the recycling of the silicon carbide upper slurry is realized.

In this embodiment, a drain valve is disposed on the pipe between the filter device and the slurry outlet. And closing the circulating pump and opening the blow-off valve, so that the silicon carbide upper slurry and impurities in the sizing tank can be discharged, and finally, the detachable filter screen can be detached for thorough cleaning.

In this embodiment, a first mounting frame is arranged at the wire feeding end of the sizing tank, and the sizing tank is arranged between the first mounting frame and the second mounting frame; the first installation frame is provided with a wire feeding row wheel, the second installation frame is provided with a wire discharging row wheel, and a first dipping roller and a second dipping roller are respectively arranged in the sizing tank at a wire feeding end and a wire discharging end; the silicon carbide fiber sequentially passes through the top of the wire feeding row wheel, the bottom of the first dipping roller, the bottom of the second dipping roller and a wire outlet formed between the extrusion roller and the wire outlet roller to discharge wires through the bottom of the wire outlet row wheel. The silicon carbide fiber is supported and positioned by the first dipping roller and the second dipping roller, so that the silicon carbide fiber wound between the first dipping roller and the second dipping roller can be soaked in silicon carbide sizing agent for sizing. And a plurality of strands of silicon carbide fibers can be wound on the wire feeding row wheel and the wire discharging row wheel, so that the efficiency is improved.

In this embodiment, the wire feeding row wheel and the wire discharging row wheel each include a plurality of wire guiding wheels which are coaxially arranged and have the same number; the distance between adjacent godet wheels is the same, and grooves matched with silicon carbide fibers in size are formed in the surfaces of the godet wheels. And each godet wheel can be wound with a piece of silicon carbide fiber, so that the number of the silicon carbide fiber strands which can be wound on the wire feeding row wheel and the wire discharging row wheel can be adjusted according to the number of the adjustable godet wheels, the sizing efficiency is improved, and the godet wheels realize the axial positioning of the silicon carbide fiber along the wire feeding row wheel and the wire discharging row wheel.

In this embodiment, a liquid level sensor is disposed on the side wall of the sizing tank. The liquid level sensor can monitor the liquid level of the sizing agent on the silicon carbide in the sizing tank, and can send out an alarm signal when the liquid level of the sizing agent on the silicon carbide is lower than a set value, so that the sizing process can be smoothly carried out.

In the present embodiment, in the case of the present embodiment, and a detachable glass cover plate is arranged at the top of the sizing tank. The sizing condition in the sizing tank can be observed at any time through the glass cover plate, and the glass cover plate can be opened, so that the operation is convenient.

In summary, the silicon carbide fiber sizing device provided by the device scheme has the effect of improving the quality of the silicon carbide fiber.

Drawings

Fig. 1 is a front view of the present utility model.

Fig. 2 is a top view of the present utility model.

In the figure, 1, a wire feeding row wheel; 2. a first dipping roller; 3. a sizing tank; 4. a first mounting frame; 5. a second mounting frame; 6. a wire outlet roller; 7. a wire discharging row wheel; 8. a circulation pump; 9. a filtering device; 10. a blow-down valve; 11. a slurry outlet; 12. a squeeze roll; 13. an extrusion device; 14. a spray head; 15. a glass cover plate; 16. a drainage plate; 17. a pulp inlet seat; 18. a detachable filter screen; 19. a liquid level sensor; 20. a godet wheel; 21. and a second dipping roller.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In addition, the technical solutions of the embodiments of the present utility model may be combined with each other, but it is necessary to be based on the fact that those skilled in the art can implement the technical solutions, and when the technical solutions are contradictory or cannot be implemented, the combination of the technical solutions should be considered as not existing, and not falling within the scope of protection claimed by the present utility model.

As shown in fig. 1 to 2, the utility model provides a silicon carbide fiber sizing device, which comprises a sizing tank 3, wherein silicon carbide sizing liquid is contained in the sizing tank 3, a first mounting frame 4 is arranged at the wire feeding end of the sizing tank 3, and a second mounting frame 5 is arranged at the wire outlet end of the sizing tank 3; a liquid level sensor 19 is arranged in the sizing tank 3 and on the side wall. The liquid level sensor 19 can monitor the liquid level of the sizing agent on the silicon carbide in the sizing tank 3, and can send out an alarm signal when the liquid level of the sizing agent on the silicon carbide is lower than a set value, so that the sizing process can be smoothly carried out. A detachable glass cover plate 15 is arranged at the top of the sizing tank 3. The sizing condition in the sizing tank 3 can be observed at any time through the glass cover plate 15, and the glass cover plate 15 can be opened, so that the operation is convenient.

The device also comprises a godet 6 and a squeeze roll 12; the wire outlet roller 6 is arranged right above the sizing pool 3 and on the inner side of the second mounting frame 5, the wire outlet roller 6 is connected with the second mounting frame 5 in a rotating way, the extrusion roller 12 and the rotating shaft of the wire outlet roller 6 are arranged in parallel, the extrusion device 13 is arranged on the second mounting frame 5, the extrusion roller 12 is tightly pressed on the wire outlet roller 6 through the extrusion device 13, and a wire outlet for the silicon carbide fiber to pass through is formed between the extrusion roller 12 and the wire outlet roller 6. The sized silicon carbide fiber is wound on the godet 6, and the extrusion roller 12 extrudes the silicon carbide fiber on the godet 6 under the drive of the extrusion device 13; and the surplus silicon carbide sizing agent is extruded and discharged, so that the uneven sizing condition is avoided, and the extruded silicon carbide sizing agent flows into the sizing tank 3, so that the recycling of the silicon carbide sizing agent is realized; the godet 6 is in rotary connection with the second mounting frame 5, so that the godet 6 can roll relative to the silicon carbide fibers, and extrusion quality of the silicon carbide fibers is further ensured; and the pressing device 13 can adjust the pressing pressure according to the number of silicon carbide fibers.

And a spray head 14 is arranged at the inner side of the second mounting frame 5 and below the godet 6, the spray head 14 is aligned with the extrusion surface of the godet 6, and the inlet of the spray head 14 is filled with silicon carbide upper slurry. The spray head 14 sprays out the silicon carbide upper slurry to wet the extrusion surface of the filament outlet roller 6, so that the phenomenon that the silicon carbide upper slurry on the extrusion surface of the filament outlet roller 6 is sticky due to the fact that the viscosity of the silicon carbide upper slurry is increased due to evaporation of water, and further the situation that the silicon carbide fibers are sticky due to the fact that the silicon carbide upper slurry with high viscosity is sticky when passing through the filament outlet roller 6 is avoided; meanwhile, the spray head 14 can wash away broken wires and other impurities remained after the silicon carbide fibers on the filament roll 6 are extruded; and the silicon carbide sizing liquid on the godet 6 finally flows into the sizing tank 3, so that the reutilization of the silicon carbide sizing liquid is realized. Specifically, the spray head 14 is a duckbill spray head; the duckbill spray head can spray the silicon carbide upper slurry onto the entire godet 6 so that the godet 6 can be better wetted and cleaned.

The drainage plate 16 is arranged on the inner side of the second mounting frame 5 and below the spray head 14, the width of the drainage plate 16 is matched with the width of the sizing tank 3, one end of the drainage plate 16 is arranged on the inner side of the second mounting frame 5 and the bottom of the wire outlet roller 6, and the other end of the drainage plate 16 is arranged on the wire outlet end of the sizing tank 3. Through the setting of drainage plate 16 for shower nozzle 14 spun carborundum goes up thick liquid and falls to last 16 on the drainage plate, finally flows into sizing tank 3 through the drainage plate 16, avoids carborundum to go up thick liquid and directly falls into sizing tank 3 and cause splashing, causes extravagant and influences sizing quality.

The device also comprises a slurry circulation system, wherein the slurry circulation system comprises a circulation pump 8 and a filtering device 9; the utility model discloses a three-way pipe, including sizing tank 3, filter screen 8, circulating pump 8, three-way pipe, filter screen 9, filter screen 8, pipeline connection shower nozzle 14, three-way pipe second export, filter screen 9, circulating pump 8 import, pipeline connection shower nozzle 14, three-way pipe second export, filter screen 9 import, pipeline connection filter screen 11 are passed through to sizing tank 3 bottom, the silk end is provided with into the thick liquid mouth, be provided with in the thick liquid mouth 11, circulating pump 8 import is passed through to the filter screen 8 export. The detachable filter screen 18 filters broken filaments of large silicon carbide fibers and accumulates the large broken filaments at the detachable filter screen; the filter device 9 filters small broken filaments of silicon carbide fibers and other particle impurities, and the silicon carbide sizing liquid entering the circulating pump 8 is filtered twice through the detachable filter screen 18 and the filter device 9, so that the quality of the recycled silicon carbide sizing liquid is improved, and the influence on the quality of the silicon carbide fibers due to the fact that broken filaments of the silicon carbide fibers are reattached to the silicon carbide fibers in the sizing process is avoided. Specifically, a plurality of activated carbon adsorption layers are provided in the filter device 9.

The sizing tank is characterized in that a sizing seat 17 is arranged on the side wall of the sizing tank 3 at the wire feeding end, the width of the sizing seat 17 is matched with the width of the sizing tank 3, an inlet of the sizing seat 17 is connected with a sizing inlet, a plurality of outlets are uniformly arranged on one side, facing the sizing tank 3, of the sizing seat 17, and the outlets are arranged facing the wire outlet end of the sizing tank 3 and are biased towards the bottom of the sizing tank 3. The pulp inlet is arranged towards the filament outlet end of the sizing tank 3 and is deviated to the bottom of the sizing tank 3. So the filtered silicon carbide sizing liquid is sprayed out towards the wire outlet end of the sizing tank 3 and is deviated to the bottom of the sizing tank 3, and the flow speed of the silicon carbide sizing liquid is adjusted, so that the silicon carbide sizing liquid mainly flows at the bottom of the sizing tank 3, and the broken wires of the silicon carbide fibers in the sizing tank 3 can be flushed to the detachable filter screen 18 for accumulation, thereby being convenient for cleaning; but also can avoid the direct impact of the sprayed silicon carbide upper slurry on the silicon carbide fiber and influence the quality of the silicon carbide fiber. The silicon carbide upper slurry sprayed out of the spray head 14 comes from the filtered silicon carbide upper slurry flowing out of the circulating pump 8, so that the silicon carbide upper slurry sprayed on the spinning roller 6 is ensured to contain no impurities, and the recycling of the silicon carbide upper slurry is realized. Specifically, the included angle between the central line of the outlet and the bottom surface of the sizing tank 3 is 5-10 degrees.

A blow-down valve 10 is arranged on the pipeline between the filtering device 9 and the pulp outlet 11. The circulating pump 8 is closed, the blow-off valve 10 is opened, the silicon carbide sizing liquid and impurities in the sizing tank 3 can be discharged, and finally the detachable filter screen 18 can be detached for thorough cleaning.

The extrusion device 13 comprises an air cylinder, the extrusion roller 12 is rotatably arranged on a bracket, one side of the bracket is hinged to the inner side of the second mounting frame 5, the air cylinder is arranged above the extrusion roller 12, one end of the air cylinder is hinged to the second mounting frame 5, and the other side of the air cylinder is hinged to the top of the bracket. Since the extrusion roller 12 is rotatably arranged on the bracket, the extrusion mixture 12 can roll relative to the silicon carbide fiber wound on the filament winding roller 6, so that the extrusion quality of the silicon carbide fiber is ensured; and the extrusion pressure can be adjusted by the cylinder. Specifically, the squeeze roll 12 is provided with a bearing along a central axis; the squeeze roll 12 rotates around the central axis through bearings.

The squeeze surface of the squeeze roller 12 is provided with a rubber layer. Because the rubber layer is arranged on the extrusion surface of the extrusion roller 12, the extrusion roller 12 flexibly extrudes the silicon carbide fiber wound on the filament outlet roller 6, so that the extrusion quality of the silicon carbide fiber is further ensured, and the condition that the extrusion roller 12 breaks filaments when extruding the silicon carbide fiber is greatly reduced; and the rubber layer of the squeeze roll 12 squeezes the bundled silicon carbide fibers into a plane, so that the silicon carbide sizing liquid in the silicon carbide fibers can sufficiently size each silicon carbide monofilament, and further the redundant silicon carbide sizing liquid is squeezed out and discharged, thereby avoiding the condition of uneven sizing inside and outside the silicon carbide fibers and further processing the bundled silicon carbide fibers. Specifically, the rubber layer is a nitrile rubber layer with Shore hardness of A60-65, and polishing treatment is carried out.

The wire feeding end of the sizing tank 3 is provided with a first mounting frame 4, and the sizing tank 3 is arranged between the first mounting frame 4 and a second mounting frame 5; the first installation frame 4 is provided with a wire feeding row wheel 1, the second installation frame 5 is provided with a wire discharging row wheel 7, and a first dipping roller 2 and a second dipping roller 21 are respectively arranged in the sizing tank 3 at a wire feeding end and a wire discharging end; the silicon carbide fiber sequentially passes through the top of the wire feeding row wheel 1, the bottom of the first dipping roller 2, the bottom of the second dipping roller 21 and a wire outlet formed between the extrusion roller 12 and the wire outlet roller 6, and is discharged through the bottom of the wire outlet row wheel 7. The silicon carbide fibers are supported and positioned by the first dipping roller 2 and the second dipping roller 21, so that the silicon carbide fibers wound between the first dipping roller 2 and the second dipping roller 21 can be immersed in the silicon carbide sizing liquid for sizing. And a plurality of strands of silicon carbide fibers can be wound on the wire feeding row wheel 1 and the wire discharging row wheel 7, so that the efficiency is improved.

The wire feeding row wheel 1 and the wire discharging row wheel 7 comprise a plurality of wire guiding wheels 20 which are coaxially arranged and have the same number; the intervals between the adjacent godet wheels 20 are the same, and grooves matched with the silicon carbide fibers in size are formed in the surfaces of the godet wheels 20. Each godet wheel 20 can be wound with a piece of silicon carbide fiber, so the number of the windable silicon carbide fiber strands on the wire feeding row wheel 1 and the wire discharging row wheel 7 can be adjusted according to the number of the adjustable godet wheels 20, the sizing efficiency is improved, and the godet wheels 20 realize the axial positioning of the silicon carbide fiber along the wire feeding row wheel 1 and the wire discharging row wheel 7.

The foregoing description of the preferred embodiments of the present utility model should not be construed as limiting the scope of the utility model, but rather utilizing equivalent structural changes made in the present utility model description and drawings or directly/indirectly applied to other related technical fields are included in the scope of the present utility model.

Claims (12)

1. The utility model provides a carborundum fibre sizing apparatus which characterized in that: comprises a sizing tank (3), a godet (6) and a squeeze roll (12); the utility model discloses a sizing machine, including sizing tank (3), wire outlet, extrusion roller (12), extrusion device (13) are installed on second mounting bracket (5), wire outlet (6) are installed in wire outlet end of sizing tank (3), wire outlet roller (6) are installed to second mounting bracket (5) inboard, sizing tank (3) directly over, be rotationally connected between wire outlet roller (6) and second mounting bracket (5), extrusion roller (12) are laid with wire outlet roller (6)'s rotation axis is parallel, extrusion device (13) are installed on second mounting bracket (5), extrusion roller (12) compress tightly on wire outlet roller (6) through extrusion device (13), form the wire outlet that supplies the carborundum fibre to pass through between extrusion roller (12) and wire outlet roller (6).

2. A silicon carbide fiber sizing device according to claim 1, wherein: the extrusion device (13) comprises an air cylinder, the extrusion roller (12) is rotatably arranged on a support, one side of the support is hinged to the inner side of the second mounting frame (5), the air cylinder is arranged above the extrusion roller (12), one end of the air cylinder is hinged to the second mounting frame (5), and the other side of the air cylinder is hinged to the top of the support.

3. A silicon carbide fiber sizing device according to claim 1, wherein: the extrusion surface of the extrusion roller (12) is provided with a rubber layer.

4. A silicon carbide fiber sizing device according to claim 1, wherein: the novel silicon carbide spinning machine is characterized by further comprising a spray head (14), wherein the spray head (14) is arranged on the inner side of the second mounting frame (5) and below the spinning roller (6), the spray head (14) is aligned to the extrusion surface of the spinning roller (6), and the inlet of the spray head (14) is filled with silicon carbide upper slurry.

5. A silicon carbide fiber sizing device as claimed in claim 2, wherein: the utility model discloses a sizing tank, including second mounting bracket (5), shower nozzle (14), second mounting bracket (5) inboard, shower nozzle (14) below have arranged drainage board (16), drainage board (16) one end is installed in second mounting bracket (5) inboard, go out silk roller (6) bottom, drainage board (16) other end sets up on last sizing tank (3) go out silk end.

6. A silicon carbide fiber sizing device according to claim 4 or 5, wherein: the device also comprises a slurry circulation system, wherein the slurry circulation system comprises a circulation pump (8) and a filtering device (9); the utility model discloses a three-way pipe, including sizing tank (3), filter screen (18), circulating pump (8), three-way pipe, filter screen (9) and filter device (9) are connected in the pipeline, sizing tank (3) bottom, advance the silk end and are provided with into thick liquid mouth, sizing tank (3) bottom, go out the silk end and be provided with out thick liquid mouth (11), be provided with in the thick liquid mouth (11) and dismantle filter screen (18), the import of three-way pipe first export is through pipe connection shower nozzle (14) import, three-way pipe second export is through pipe connection inlet, go out thick liquid mouth (11) and pass through pipe connection filter device (9) import, filter device (9) export is through pipe connection circulating pump (8) import.

7. A silicon carbide fiber sizing device according to claim 6, wherein: the sizing machine is characterized in that a sizing seat (17) is arranged on the side wall of the sizing tank (3) at the wire feeding end, the width of the sizing seat (17) is matched with that of the sizing tank (3), an inlet of the sizing seat (17) is connected with a sizing inlet, a plurality of outlets are uniformly arranged on one side of the sizing seat (17) towards the sizing tank (3), and the outlets are arranged towards the wire feeding end of the sizing tank (3) and are deviated to the bottom of the sizing tank (3).

8. A silicon carbide fiber sizing device according to claim 6, wherein: a drain valve (10) is arranged on a pipeline between the filtering device (9) and the slurry outlet (11).

9. A silicon carbide fiber sizing device according to claim 6, wherein: the wire feeding end of the sizing tank (3) is provided with a first mounting frame (4), and the sizing tank (3) is arranged between the first mounting frame (4) and a second mounting frame (5); the first installation frame (4) is provided with a wire feeding row wheel (1), the second installation frame (5) is provided with a wire discharging row wheel (7), and a first dipping roller (2) and a second dipping roller (21) are respectively arranged in the sizing tank (3) at a wire feeding end and a wire discharging end; the silicon carbide fiber sequentially passes through the top of the wire feeding row wheel (1), the bottom of the first dipping roller (2), the bottom of the second dipping roller (21) and a wire outlet formed between the extrusion roller (12) and the wire outlet roller (6) to be discharged through the bottom of the wire outlet row wheel (7).

10. A silicon carbide fiber sizing device according to claim 9, wherein: the wire feeding row wheel (1) and the wire discharging row wheel (7) comprise a plurality of wire guiding wheels (20) which are coaxially arranged and have the same number; the intervals between adjacent godet wheels (20) are the same, and grooves matched with silicon carbide fibers in size are formed in the surfaces of the godet wheels (20).

11. A silicon carbide fiber sizing device according to claim 6, wherein: liquid level sensors (19) are arranged in the sizing tank (3) and on the side walls.

12. A silicon carbide fiber sizing device according to claim 6, wherein: a detachable glass cover plate (15) is arranged at the top of the sizing tank (3).