CN112938649B - Chemical treatment type carbon fiber sequencing process and carbon fiber cutting device - Google Patents
Chemical treatment type carbon fiber sequencing process and carbon fiber cutting device Download PDFInfo
- Publication number
- CN112938649B CN112938649B CN202110127367.XA CN202110127367A CN112938649B CN 112938649 B CN112938649 B CN 112938649B CN 202110127367 A CN202110127367 A CN 202110127367A CN 112938649 B CN112938649 B CN 112938649B
- Authority
- CN
- China
- Prior art keywords
- carbon fiber
- filament
- winding
- roller
- guide
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H71/00—Moistening, sizing, oiling, waxing, colouring or drying filamentary material as additional measures during package formation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H57/00—Guides for filamentary materials; Supports therefor
- B65H57/16—Guides for filamentary materials; Supports therefor formed to maintain a plurality of filaments in spaced relation
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01G—PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
- D01G1/00—Severing continuous filaments or long fibres, e.g. stapling
- D01G1/06—Converting tows to slivers or yarns, e.g. in direct spinning
- D01G1/10—Converting tows to slivers or yarns, e.g. in direct spinning by cutting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2701/00—Handled material; Storage means
- B65H2701/30—Handled filamentary material
Abstract
The application relates to a chemical treatment type carbon fiber sequencing process and a carbon fiber cutting device, wherein the sequencing process comprises the following steps: coating plating: forming a coating on one end of the chopped carbon fibers to ensure that the gravity center distribution of the chopped carbon fibers is unbalanced; preparing a colloid base material: mixing and stirring the chopped carbon fibers with the coating at the end part and liquid silica gel to form a colloid with fluidity; carbon fiber sequencing: placing the containers filled with the colloid in a vibrating device for vibrating and sequencing; and (3) curing: and curing the sequenced colloid by baking to form the thermal interface material. This application can be comparatively more high-efficient and convenient do the sequencing to the short-staple.
Description
Technical Field
The application relates to the field of thermal interface material production, in particular to a chemical treatment type carbon fiber sequencing process and a carbon fiber cutting device.
Background
With the maturity of the 5G technology, electronic products gradually develop toward light weight and high integration. Therefore, in the daily use process, the working frequency of the electronic chip is increased continuously, which leads to the great increase of the heat productivity of the equipment. The working state of the electronic components can be greatly influenced if the redundant heat is not conducted out in time, even the electronic components are out of work in serious conditions, and the service life is shortened. In order to solve this problem, thermal interface materials are often used in the prior art to fill up the micro-voids and the holes with uneven surfaces generated when two materials are joined or contacted, so as to improve the heat dissipation performance of the device. In order to meet the existing technical requirements, carbon fibers are often used to match with a base material and are subjected to directional ordering to form a thermal interface material.
However, in the prior art, when producing thermal interface materials, the method for directionally ordering the carbon fibers usually adopts a strong magnetic field or a screw extruder for ordering. However, the magnetic field intensity is required to reach more than 5T by adopting a strong magnetic field for sequencing, the equipment is expensive, and the production efficiency is relatively low; when a screw extruder is used for sequencing, the requirements on the viscosity and the hardness of the prepared materials are high, and the orientation of carbon fibers is not completely consistent due to inconsistent flow speed of the prepared materials containing carbon fibers in an extrusion flow channel, so that the stability of the heat conductivity of the product is poor.
Disclosure of Invention
In order to be able to relatively do the sequencing to comparatively high-efficient and convenient short-staple, this application provides a chemical treatment formula carbon fiber sequencing process and carbon fiber cutting device.
In a first aspect, the present application provides a chemical treatment type carbon fiber sequencing process, which adopts the following technical scheme:
a chemical treatment type carbon fiber sequencing process comprises the following steps:
coating plating: forming a coating on one end of the chopped carbon fibers to ensure that the gravity center distribution of the chopped carbon fibers is unbalanced;
preparing a colloid base material: mixing and stirring the chopped carbon fibers with the coating at the end part and liquid silica gel to form a colloid with fluidity;
Carbon fiber sequencing: placing the containers filled with the colloid in a vibrating device for vibrating and sequencing;
and (3) curing: and curing the sequenced colloid by baking to form the thermal interface material.
Through adopting above-mentioned technical scheme, in process of production, the one end is plated and is equipped with the coating and cut the carbon fiber and can make the short carbon fiber focus skew of cutting, then when stirring the vibration in the vibrating equipment after mixing with liquid silica gel in the colloid, can make the one end of short carbon fiber coating down to can realize the sequencing of short carbon fiber of cutting in the colloid, it is whole comparatively more high-efficient and convenient.
In a second aspect, the present application provides a carbon fiber cutting apparatus, which adopts the following technical solution:
the utility model provides a carbon fiber cutting device, includes that base and at least one set up in the filament roller, the point gum machine of base constructs, stoving mechanism, winding mechanism and be used for the shutdown mechanism that cuts off the carbon fiber, the filament roller rotates to be connected and has the filament carbon fiber in base and filament roller winding, and the filament carbon fiber extends to winding mechanism and filament carbon fiber from the filament roller and passes through point gum machine in proper order and stoving mechanism, point gum machine constructs including the point glue cylinder and is used for the point glue that glues on the filament carbon fiber, point glue a connection in the flexible end of gluing the cylinder.
Through adopting above-mentioned technical scheme, when the short carbon fiber that production thermal interface material was used, twine long filament carbon fiber in long filament roller earlier, then do the rolling to long filament carbon fiber through winding mechanism to at the in-process of rolling, do the point to long filament carbon fiber through some glue cylinder earlier, then dry long filament carbon fiber through drying mechanism, in order to form the long filament carbon fiber that has a plurality of coatings, at last rethread cutting mechanism cuts off long filament carbon fiber and forms the short carbon fiber that has the coating, in order to be used for carbon fiber sequencing technology production.
Optionally, the glue dispensing part comprises a glue box and a glue dispensing block, wherein the glue box and the glue dispensing block are filled with thermosetting adhesive, a glue dispensing opening is formed in the lower end of the glue dispensing block, the glue dispensing block is hollow and communicated with the glue box, the glue box is connected to the telescopic end of the glue dispensing cylinder, and a glue permeating strip used for permeating the adhesive is arranged on the edge of the inner ring of the glue dispensing opening.
Through adopting above-mentioned technical scheme, glue the adhesive in the box and can permeate to oozing the gluing strip through the cavity in the point gluey piece, when the flexible end of some glue cylinders stretches out simultaneously, the long filament carbon fiber can contact oozing the gluing strip under the guide of some glue mouths to can be at the discontinuous formation adhesive coating in the surface of long filament carbon fiber.
Optionally, the width of the infiltration strip along the length direction of the filament carbon fiber is less than 1 mm.
By adopting the technical scheme, the situation that after the filament carbon fiber is cut off, the gravity center of the chopped carbon fiber is cheap and unobvious due to too much adhesive coated on the adhesive-impregnated strip is effectively reduced.
Optionally, stoving mechanism is including being pipy heating member and the vortex spare that is used for blowing hot gas flow to long filament carbon fiber, and long filament carbon fiber wears to locate heating member and connects in the base, vortex spare is the fan and its below that is located the heating member.
Through adopting above-mentioned technical scheme, can be comparatively more even do the heating to each part of long filament carbon fiber to can comparatively stabilize even relatively in with the solidification of adhesive coating, can also flow through vortex spare acceleration air current, in order when accelerating the solidification, can also reduce the possibility that long filament carbon fiber rubberizing adhesive coating drops.
Optionally, the winding mechanism is including being used for being the guide of guide and being used for being the rolling piece of rolling to the long filament carbon fiber, the rolling piece sets up in one side that the point gum machine constructs is kept away from to the guide, the rolling piece includes a plurality of rolling running rollers one and a plurality of rolling running roller two, rolling running roller one and rolling running roller two are all rotated and are connected in the base, the running roller groove that is used for centre gripping long filament carbon fiber is seted up to rolling running roller one and rolling running roller two, the base is provided with and is used for driving at least one pivoted rolling driving piece in rolling running roller one and/or the rolling running roller two.
By adopting the technical scheme, when the filament carbon fiber solidified by the point gum is rolled, the filament carbon fiber is guided by the guide part, and then the rolling driving part drives the first rolling roller and/or the second rolling roller to rotate so as to drive the filament carbon fiber clamped between the first rolling roller and the second rolling roller to be output to the cutting mechanism to be cut off.
Optionally, the guide piece includes the guide running roller that is on a parallel with rolling running roller one, rotates guide block and four guide springs of connecting in the guide running roller both ends, the vertical slip of guide block is connected in the base, four guide spring divide into two sets and two sets of guide springs and sets up respectively in the both ends of guide running roller, two of the same group guide spring is located the upper and lower side of guide running roller respectively, the both ends of guide spring are fixed connection in guide block and base respectively.
Through adopting above-mentioned technical scheme for long filament carbon fiber is walked around from the guide running roller below and then is centre gripping between two roller grooves on rolling running roller one and rolling running roller to through two guide spring of guide piece compression or tensile same group, so that long filament carbon fiber keeps the state of tightening, stability when optimizing the use.
Optionally, the cutting mechanism includes a rotary driving member disposed on the base and at least one cutting blade connected to a rotary end of the rotary driving member, and a rotary path of the cutting blade passes through the filament carbon fiber output end of the winding mechanism.
Through adopting above-mentioned technical scheme, when long filament carbon fiber was exported from winding mechanism, the rotary driving piece can drive the cutting blade and rotate to cut off long filament carbon fiber, in order to form the short carbon fiber that has the coating.
In summary, the present application includes at least one of the following beneficial technical effects:
1. make the carbon fiber of cutting into the short carbon fiber that has one end coating through cutting device earlier, because one end is plated the short carbon fiber who is equipped with the coating and can make its focus skew, then when vibrating in vibrating equipment after stirring the mixture with silicone oil, heat-conducting powder, coupling agent, curing agent, catalyst, inhibitor in the colloid, can make the one end of short carbon fiber coating down to can realize the sequencing of short carbon fiber of cutting in the colloid, it is whole comparatively more high-efficient and convenient.
Drawings
FIG. 1 is a process flow diagram of an embodiment of the present application.
Fig. 2 is a schematic structural view of a cutting device according to an embodiment of the present application.
Fig. 3 is an enlarged schematic structural diagram of a portion a in fig. 2 according to an embodiment of the present application.
Fig. 4 is an enlarged schematic structural diagram of a portion B in fig. 2 according to an embodiment of the present application.
Description of reference numerals: 1. a base; 2. a filament roller shaft; 21. a roller; 22. a sleeve; 23. a drive member; 231. a drive motor; 232. a drive pulley; 233. a drive belt; 24. a connecting member; 241. connecting blocks; 242. a connecting port; 3. a glue dispensing mechanism; 31. a dispensing cylinder; 32. dispensing a glue piece; 321. a glue box; 322. dispensing a glue block; 323. dispensing a glue port; 324. infiltrating an adhesive tape; 325. a guide block; 326. a limiting block; 4. a drying mechanism; 41. a heating element; 42. a spoiler; 5. a winding mechanism; 51. a guide member; 511. a guide roller; 512. a guide block; 513. a guide spring; 52. rolling up the part; 521. a first winding roller; 522. a second winding roller; 523. a roller groove; 53. winding a driving part; 531. a first winding gear; 532. a second winding gear; 533. a winding driving motor; 534. a drive gear; 6. a cutting mechanism; 61. a rotary drive member; 62. cutting off the blade; 63. a tool post; 631. a tool apron.
Detailed Description
The present application is described in further detail below with reference to figures 1-4.
The embodiment of the application discloses a chemical treatment type carbon fiber sequencing process. Referring to fig. 1, a chemical treatment type carbon fiber sequencing process includes the steps of:
coating plating: forming a coating on one end of the chopped carbon fibers to ensure that the gravity center distribution of the chopped carbon fibers is unbalanced; the coating can be formed by forming a silicon dioxide coating on the end part of the carbon fiber filament by a sol-gel method, forming a ferroferric oxide coating on one end of the carbon fiber filament by an electroplating method, or laying an adhesive coating in the process of cutting the carbon fiber filament by a carbon fiber cutting device.
When the sol-gel method is adopted, tetraethoxysilane can be dissolved in ethanol and continuously stirred, then diluted ammonia water is slowly added to adjust the pH value to 9 to form sol, one end of the uncut filament carbon fiber is immersed into the sol, the immersion depth is less than 1mm, the immersion time is 4 hours, the uncut filament carbon fiber is cleaned by distilled water and then dried by an oven, and the dried temperature is lower than 60 ℃ to form the silicon dioxide coating.
Preparing a colloid base material: mixing and stirring the chopped carbon fibers with the coating at the end part and liquid silica gel to form colloid with certain fluidity; wherein the mixing time is 10 min.
Carbon fiber sequencing: placing the container filled with the colloid in a vibrating device for vibration sequencing, wherein one end of the chopped carbon fiber is provided with a coating, so that the deflected end of the chopped carbon fiber is downward during vibration, the chopped carbon fiber in the colloid can be directionally sequenced through vibration, and the vibration frequency is 100 Hz-20 KHz;
and (3) curing: and placing the sequenced colloid in an oven for curing to form the thermal interface material, wherein the curing temperature of the baking is 80-100 ℃.
The liquid silica gel comprises 15-50 parts by mass of chopped carbon fibers, 40-75 parts by mass of heat conducting powder, 10-20 parts by mass of silicone oil, 0.12-0.25 part by mass of curing agent, 0.05-0.10 part by mass of catalyst, 0.04-0.15 part by mass of inhibitor and 0.5-1.5 part by mass of coupling agent, wherein the average short axis length of the chopped carbon fibers is 8-15 mu m, and the average long axis length is 200-3 mm. The chopped carbon fibers used in this example had an average minor axis length of 8 μm and an average major axis length of 250 μm.
In this example, the heat-conducting resin composition is composed of 35 parts by mass of chopped carbon fibers, 55 parts by mass of heat-conducting powder, 15 parts by mass of silicone oil, 0.15 part by mass of a curing agent, 0.08 part by mass of a catalyst, 0.12 part by mass of an inhibitor, and 1 part by mass of a coupling agent.
The heat conducting powder is one or two of aluminum oxide, zinc oxide, magnesium oxide, aluminum nitride, graphite flakes, graphene, aluminum powder, silver-coated aluminum powder and the like, and the average particle size of the powder is 4-35 um. The heat conductive powder used in this example was alumina, and the average particle size of the powder was 7 μm.
The silicone oil is one or two of side chain vinyl silicone oil, terminal vinyl silicone oil and phenyl vinyl silicone oil, and the viscosity of the silicone oil is 50-5000 mPa.s. The silicone oil used in this example was a vinyl terminated silicone oil having a viscosity of 250 mpa.s.
The coupling agent is one or two of vinyltriethoxysilane, long-chain alkylsilane, vinyltrimethoxysilane and tetraethoxysilane. This example uses a long chain alkylsilane.
The curing agent is hydrogen-containing silicone oil, and the mass fraction of hydrogen is 0.1-0.25%. The hydrogen-containing silicone oil of the embodiment contains 0.20 percent of hydrogen by mass
The catalyst is a platinum catalyst, wherein the content of platinum is 1000-3500 ppm. The platinum content of the catalyst of this example was 1500 ppm.
The inhibitor is ethynyl cyclohexanol.
The following tests were performed on the thermal interface material produced in this example and for the thermal interface material using vibrational sequencing:
And sampling the sections of the thermal interface material which is subjected to vibration sorting by using chopped carbon fibers and is not subjected to sorting by using the chopped carbon fibers, wherein the sections are vertical to the sorting direction. Then sampling statistics is carried out on the shape of the section of the chopped carbon fiber in the section of the thermal interface material through a microscope, and the components of the thermal interface material which is not subjected to vibration sequencing are the same as those of the embodiment of the application. And respectively carrying out heat conduction performance tests on the sampled thermal interface material, wherein the number of the short carbon fibers with the circular cross-section outline of the short carbon fibers is regarded as A, and the number of the short carbon fibers with the oval cross-section outline of the short carbon fibers is B. The thermal conductivity and A/(A + B) were averaged and tabulated for the results of the various tests.
TABLE 1 sample Properties of the thermal interface materials prepared in this example
| Thermal interface material with vibration sequencing | Thermal interface material without vibration sequencing | |
| A/（A+B） | 0.92 | 0.48 |
| Coefficient of thermal conductivity | 12.96 W/m•K | 4.03 W/m•K |
It can be seen by combining the embodiment of the present application and table 1 that after a coating is disposed on one end of the chopped carbon fibers, the proportion of the vertical orientation of the thermal interface material after vibration sorting is performed on the liquid silica gel mixed with the chopped carbon fibers is obviously increased compared with that of the chopped carbon fibers in the thermal interface material without vibration sorting, and the thermal conductivity of the thermal interface material subjected to vibration sorting is obviously increased.
The embodiment of the application also discloses a carbon fiber cutting device. Referring to fig. 2 and 3, a carbon fiber cutting device comprises a base 1, at least one filament roller 2 arranged on the base 1, a dispensing mechanism 3 for dispensing filament carbon fibers, a drying mechanism 4, a winding mechanism 5 for winding the filament carbon fibers, and a cutting mechanism 6 for cutting the filament carbon fibers.
Base 1 is the support body structure, and long filament roller 2 is including rotating the sleeve 22 of connecting in roller 21 and a plurality of cover locating roller 21 of base 1, and base 1 still is provided with and is used for driving roller 21 pivoted driving piece 23, and the sleeve 22 winding has long filament carbon fiber. The cross section of the roller 21 is in a cross or polygon prism structure or the roller 21 is provided with a plurality of prismatic grooves extending along the axial direction of the roller, so that the radial section of the roller 21 is in a regular non-circular shape. And the inner ring of the sleeve 22 is adapted to the outer wall of the roller 21, so that the plurality of sleeves 22 can be synchronously driven to rotate when the roller 21 rotates.
The driving member 23 includes a driving motor 231 disposed on the base 1, two driving pulleys 232, and a driving belt 233 sleeved on the two driving pulleys 232, wherein the two driving pulleys 232 are respectively connected to an output shaft of the driving motor 231 and the roller 21 with the central axis. When in use, the roller 21 is driven to rotate, and the winding mechanism 5 is matched to output the filament carbon fibers and perform dispensing treatment. Among them, the driving motor 231 is preferably a deceleration servo motor or a deceleration stepping motor.
The end of the roller 21 remote from the drive member 23 is also provided with a connector 24 to facilitate removal of the sleeve 22. The connecting member 24 includes two connecting blocks 241 rotatably connected to the base 1, and a rotation plane of the connecting blocks 241 is parallel to a radial plane of the roller 21. Connecting ports 242 are respectively formed on the opposite sides of the two connecting blocks 241, and one end of the roller 21 away from the driving member 23 is clamped in the two connecting ports 242 of the two connecting blocks 241. And the two connecting blocks 241 are fastened by bolts, so that when the sleeve 22 needs to be replaced, only the two connecting blocks 241 need to be rotated, and then the sleeve 22 slides down relative to the roller 21. When in use, the bearing can be sleeved on the roller 21, and then the bearing is clamped in the two connecting ports 242, so as to optimize the use effect.
Referring to fig. 2 and 3, the dispensing mechanism 3 includes a dispensing cylinder 31 disposed on the base 1 and a dispensing member 32 disposed at a telescopic end of the dispensing cylinder 31, so that before the filament carbon fiber is cut, the filament carbon fiber can be intermittently dispensed by intermittent expansion and contraction of the dispensing cylinder 31, and the dispensing member 32 is driven to intermittently dispense the filament carbon fiber, so that an adhesive is intermittently attached to the filament carbon fiber, and a coating layer can be formed on an end portion of a chopped carbon fiber generated after the filament carbon fiber is cut.
The glue dispensing part 32 comprises a glue box 321 filled with an adhesive inside and a glue dispensing block 322, wherein the adhesive in the glue box 321 is a thermosetting inorganic adhesive. The lower end of the dispensing block 322 is provided with a dispensing opening 323, the dispensing opening 323 is arranged with a lower opening, the filament carbon fiber is arranged right below the dispensing opening 323, the dispensing block 322 is arranged with a hollow inside and is communicated with the glue box 321. The inner ring edge of the glue dispensing opening 323 is provided with a glue permeating strip 324 for permeating the adhesive, the glue permeating strip 324 is composed of a plurality of glue permeating pipes with hollow interiors, and the width of the glue permeating strip 324 in the length direction of the filament carbon fiber is smaller than 1 mm.
When the adhesive tape is used, the adhesive oozing strip 324 oozes out of the adhesive, so that when the telescopic end of the adhesive dispensing cylinder 31 extends out intermittently, the adhesive dispensing block 322 and the adhesive box 321 are driven to move downwards, the adhesive permeating strip 324 contacts the filament carbon fibers and forms adhesive coatings distributed at intervals on the surfaces of the filament carbon fibers, and then the adhesive permeating strip is dried by the drying mechanism 4 to form a cured coating, so that the gravity center offset of the chopped carbon fibers generated after being cut by the cutting mechanism 6 is changed, and the sequencing is facilitated.
In order to reduce the possibility of interference caused by swinging of the filament carbon fibers, a guide block 325 is arranged on one side of the dispensing block 322 facing the roller 21, a notch for guiding the filament carbon fibers is formed at the upper end of the guide block 325, and the filament carbon fibers are lapped in the notch on the guide block 325. In order to reduce the possibility that the filament carbon fiber is broken due to extension transition of the telescopic end of the dispensing cylinder 31 caused by failure or control error of the dispensing cylinder 31, two limiting blocks 326 are molded at one end of the dispensing block 322 facing the roller 21, the limiting blocks 326 are positioned right above the guiding block 325, and the two limiting blocks 326 are positioned at two sides of the notch on the guiding block 325 in the length direction of the filament carbon fiber, so that the limiting blocks 326 can be lapped on the guiding block 325 to limit extension transition of the dispensing cylinder 31. And the lower end of the limiting block 326 is fixedly connected with an elastic buffer block for buffering.
Referring to fig. 2 and 3, the drying mechanism 4 includes a heating member 41 in a tubular shape and a spoiler 42 for blowing hot air to the filament carbon fibers, which are inserted into the heating member 41 such that they are disposed at the same central axis. The heating member 41 is connected to the base 1, the spoiler 42 is located below the heating member 41, the spoiler 42 is connected to the base 1, the spoiler 42 is a fan and is inclined upward and disposed toward the filamentous carbon fibers and the roller 21, and the spoiler 42 is preferably an axial fan. The heating member 41 is an electric heating tube and is spirally disposed around the filament carbon fiber. For applying an adhesive to the filament carbon fibers to form a coating layer by the adhesive dispensing member 32, and then heating the adhesive by the heating member 41 to cure the adhesive so that the chopped carbon fibers after being cut can form a cured coating layer at one end.
Referring to fig. 2 and 4, the winding mechanism 5 includes a guide member 51 and a winding member 52, the guide member 51 includes a guide roller wheel 511, guide blocks 512 rotatably connected to both ends of the guide roller wheel 511 in the axial direction, and four guide springs 513, the guide blocks 512 are vertically slidably connected to the base 1 through sliding grooves vertically opened in the base 1, and the four guide springs 513 are divided into two groups and two guide springs 513 of the same group are disposed on the same central axis. The opposite ends of the two guide springs 513 in the same group are respectively abutted against the upper end and the lower end of the guide block 512, and the ends of the two guide springs 513 away from each other are respectively connected and abutted against the groove wall of the sliding groove, and the sliding groove is a dovetail groove or a T-shaped groove. The guiding roller 511 is a grooved wheel, and the filament carbon fibers on the plurality of sleeves 22 are sleeved on the lower edge of the grooved wheel of the guiding roller 511 and extend to the winding member 52, so that the filament carbon fibers can be kept in a straightened state in the using process, and the using effect is optimized.
The winding member 52 includes a plurality of first winding rollers 521 and a plurality of second winding rollers 522, wherein the first winding rollers 521 are located above the second winding rollers 522 and both are rotatably connected to the base 1. The first take-up roller 521 and the second take-up roller 522 are provided with roller grooves 523, and the plurality of filament carbon fibers are clamped in the two roller grooves 523 on the first take-up roller 521 and the second take-up roller 522 so as to limit the swing of the filament carbon fibers. The base 1 is provided with a take-up driving member 53 for driving the take-up roller one 521 or the take-up roller two 522 farthest from the roller 21 to rotate therein.
The winding driving member 53 comprises a first winding gear 531, a second winding gear 532 meshed with the first winding gear 531 and a winding driving motor 533 connected to the base 1, the first winding gear 531 and the second winding gear 532 are respectively and fixedly connected to a first winding roller 521 and a second winding roller 522 coaxially, an output shaft of the winding driving motor 533 is fixedly connected with a driving gear 534, and the driving gear 534 is meshed with the first winding gear 531 or the second winding gear 532. The winding driving motor 533 is a servo speed reducing motor or a stepping speed reducing motor. In order to can be when using, drive through drive gear 534 through rolling driving motor 533 and drive the rotation of first 531 of rolling gear and two 532 of rolling gear to drive first 521 of rolling running roller and two 522 rotations of rolling running roller, in order to can be with a plurality of long filament carbon fiber rolling and towards shutdown mechanism 6 outputs.
Referring to fig. 2, the cutting mechanism 6 includes a rotary driver 61 connected to the base 1 and at least one cutting blade 62 connected to a rotating end of the rotary driver 61, the base 1 is further provided with a cutter table 63 for assisting in cutting the filament carbon fiber, and the cutter table 63 includes two cutter seats 631 bolted to the base 1. One end of the tool apron 631 far away from the roller 21 is tangent to the first 521 and the second 522 of the rolling roller far away from the roller 21, the tool apron 631 faces the first 521 and the second 522 of the rolling roller to form an arc face brick structure, the two tool apron 631 are respectively attached to the first 521 and the second 522 of the rolling roller to be far away from the outer wall of one side of the roller 21, and the filament carbon fiber is output to the rotating path of the cutting blade 62 from the two tool apron 631 to be relatively accurate in cutting off the filament carbon fiber. And the frequency with which the cutoff insert 62 passes over the two tool seats 631 is the same as the frequency with which the coating on the filament carbon fibers exits between the two tool seats 631. Wherein, the cutting mechanism 6 can also adopt a cutting cylinder arranged on the base 1, then the cutting blade 62 is connected to the telescopic end of the cutting cylinder, and the cutting blade 62 is connected to the base 1 in a sliding manner, so as to cut the filament carbon fiber to prepare the chopped carbon fiber by controlling the sliding process of the cutting blade 62 through the cutting cylinder.
The implementation principle of the carbon fiber cutting device in the embodiment of the application is as follows: when in use, the filament carbon fiber is wound on the sleeve 22, one end of the filament carbon fiber is clamped between the first rolling roller 521 and the second rolling roller 522 after sequentially passing through the glue dispensing mechanism 3 and the drying mechanism 4, then the roller 21 is driven to rotate by the driving piece 23, meanwhile, the first rolling roller 521 and the second rolling roller 522 are driven to rotate by the rolling driving piece 53, in the process, the filament carbon fiber is intermittently extended out and used as an adhesive through the glue dispensing cylinder 31, then the adhesive is dried by the heating piece 41 to form a coating, then the filament carbon fiber is extended out by the rolling piece 52 and cut by the cutting mechanism 6, because the frequency of the cutting blade 62 passing through the two cutter seats 631 is the same as the frequency of the coating on the filament carbon fiber and output from the two cutter seats 631, one end of the cut short carbon fiber can be formed with the coating, so as to facilitate the ordering of the chopped carbon fibers by vibration.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (8)
1. A chemical treatment type carbon fiber sequencing process is characterized in that: the method comprises the following steps: coating plating: forming a coating on one end of the chopped carbon fibers to ensure that the gravity center distribution of the chopped carbon fibers is unbalanced;
preparing a colloid base material: mixing and stirring the chopped carbon fibers with the coating at the end part and liquid silica gel to form a colloid with fluidity;
carbon fiber sequencing: placing the containers filled with the colloid in a vibrating device for vibrating and sequencing; the vibration frequency is 100 Hz-20 KHz;
and (3) curing: and curing the sequenced colloid by baking to form the thermal interface material.
2. A carbon fiber cutting apparatus applied to the chemical treatment type carbon fiber sequencing process of claim 1, characterized in that: including base (1) and at least one set up in filament roller (2) of base (1), point gum machine construct (3), drying mechanism (4), winding mechanism (5) and be used for shutdown mechanism (6) with the carbon fiber cutting off, filament roller (2) rotate to be connected in base (1) and filament roller (2) winding have the filament carbon fiber, and the filament carbon fiber extends to winding mechanism (5) and filament carbon fiber through some gum machine constructs (3) and drying mechanism (4) in proper order from filament roller (2), point gum machine constructs (3) and is used for some gum machine spare (32) of gluing on the filament carbon fiber including some gum cylinder (31), some gum machine spare (32) are connected in the flexible end of some gum cylinder (31).
3. A carbon fiber cutting apparatus according to claim 2, wherein: the dispensing part (32) comprises a glue box (321) and a dispensing block (322), wherein the interior of the glue box (321) is filled with thermosetting adhesive, a dispensing opening (323) is formed in the lower end of the dispensing block (322), the dispensing block (322) is hollow and communicated with the glue box (321), the glue box (321) is connected to the telescopic end of the dispensing cylinder (31), and an adhesive permeating strip (324) used for permeating the adhesive is arranged on the edge of the inner ring of the dispensing opening (323).
4. A carbon fiber cutting apparatus according to claim 3, wherein: the width of the adhesive tape (324) along the length direction of the filament carbon fiber is less than 1 mm.
5. A carbon fiber cutting apparatus according to claim 2, wherein: stoving mechanism (4) including being pipy heating member (41) and vortex spare (42) that are used for blowing hot gas flow to long filament carbon fiber, long filament carbon fiber wears to locate heating member (41) and connects in base (1), vortex spare (42) are the fan and its below that is located heating member (41).
6. A carbon fiber cutting apparatus according to claim 2, wherein: the winding mechanism (5) comprises a guide piece (51) used for guiding the filament carbon fibers and a winding piece (52) used for winding the filament carbon fibers, the winding piece (52) is arranged on one side, far away from the dispensing mechanism (3), of the guide piece (51), the winding piece (52) comprises a plurality of first winding rollers (521) and a plurality of second winding rollers (522), the first winding rollers (521) and the second winding rollers (522) are connected to the base (1) in a rotating mode, roller grooves (523) used for clamping the filament carbon fibers are formed in the first winding rollers (521) and the second winding rollers (522), and the base (1) is provided with at least one rotating winding driving piece (53) used for driving the first winding rollers (521) and/or the second winding rollers (522).
7. A carbon fiber cutting apparatus according to claim 6, wherein: the guide piece (51) includes guide roller wheel (511), the guide block (512) and four guide spring (513) that rotate to be connected in guide roller wheel (511) both ends that are on a parallel with rolling roller wheel (521), guide block (512) vertical slip is connected in base (1), four guide spring (513) divide into two sets ofly and two sets of guide spring (513) set up respectively in the both ends of guide roller wheel (511), two of the same group guide spring (513) are located the upper and lower side of guide roller wheel (511) respectively, the both ends of guide spring (513) are fixed connection respectively in guide block (512) and base (1).
8. A carbon fiber cutting apparatus according to claim 2, wherein: the cutting mechanism (6) comprises a rotary driving part (61) arranged on the base (1) and at least one cutting blade (62) connected to the rotary end of the rotary driving part (61), and the rotary path of the cutting blade (62) passes through the filament carbon fiber output end of the winding mechanism (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110127367.XA CN112938649B (en) | 2021-01-29 | 2021-01-29 | Chemical treatment type carbon fiber sequencing process and carbon fiber cutting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110127367.XA CN112938649B (en) | 2021-01-29 | 2021-01-29 | Chemical treatment type carbon fiber sequencing process and carbon fiber cutting device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112938649A CN112938649A (en) | 2021-06-11 |
| CN112938649B true CN112938649B (en) | 2022-09-13 |
Family
ID=76239876
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110127367.XA Active CN112938649B (en) | 2021-01-29 | 2021-01-29 | Chemical treatment type carbon fiber sequencing process and carbon fiber cutting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112938649B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05217157A (en) * | 1992-01-31 | 1993-08-27 | Nec Corp | Magnetic memory body |
| CN1759005A (en) * | 2003-01-14 | 2006-04-12 | 美利肯公司 | Patterned textile product |
| CN101058721A (en) * | 2006-04-21 | 2007-10-24 | 清华大学 | Method of preparing heat interfacial material |
| CN105001450A (en) * | 2015-07-09 | 2015-10-28 | 天津大学 | High-directional-thermal-conductivity carbon/polymer composite material and preparation method |
| CN105086464A (en) * | 2015-07-28 | 2015-11-25 | 惠州市安品新材料有限公司 | Organic silicon heat-conducting composite sheet |
| CN107396610A (en) * | 2017-08-15 | 2017-11-24 | 深圳市鸿富诚屏蔽材料有限公司 | Anisotropy insulating heat-conductive pad and its manufacture method |
| CN111587061A (en) * | 2020-06-22 | 2020-08-25 | 深圳市鸿富诚屏蔽材料有限公司 | Preparation process and finished product of heat-conducting wave-absorbing tape |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5779693B2 (en) * | 2013-06-27 | 2015-09-16 | デクセリアルズ株式会社 | Thermally conductive sheet, manufacturing method thereof, and semiconductor device |
| CN104342934A (en) * | 2013-08-06 | 2015-02-11 | 杨军 | High-performance carbon fiber nanocomposite material and application thereof |
| JP6246242B2 (en) * | 2015-08-07 | 2017-12-13 | デクセリアルズ株式会社 | Insulation-coated carbon fiber, method for producing insulation-coated carbon fiber, carbon fiber-containing composition, and heat conductive sheet |
| CN107855248B (en) * | 2017-12-20 | 2023-01-31 | 广东溢达纺织有限公司 | Automatic dispensing and drying mechanism |
| CN210763480U (en) * | 2019-08-06 | 2020-06-16 | 南京晓庄学院 | Continuous automatic carbon fiber cutting device convenient to collect in order |
| CN110625877B (en) * | 2019-09-05 | 2021-06-08 | 上海阿莱德实业股份有限公司 | Preparation method of heat-conducting interface material |
| CN111500070A (en) * | 2020-04-14 | 2020-08-07 | 南方科技大学 | Carbon fiber oriented thermal interface material and preparation method thereof |
| CN111978732B (en) * | 2020-09-04 | 2022-05-24 | 广东思泉新材料股份有限公司 | Thermal interface material with three-dimensional heat conduction network structure |
| CN112140595A (en) * | 2020-09-21 | 2020-12-29 | 深圳市鸿富诚屏蔽材料有限公司 | Forming process of carbon fiber-containing oriented ordered heat-conducting gasket |
-
2021
- 2021-01-29 CN CN202110127367.XA patent/CN112938649B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05217157A (en) * | 1992-01-31 | 1993-08-27 | Nec Corp | Magnetic memory body |
| CN1759005A (en) * | 2003-01-14 | 2006-04-12 | 美利肯公司 | Patterned textile product |
| CN101058721A (en) * | 2006-04-21 | 2007-10-24 | 清华大学 | Method of preparing heat interfacial material |
| CN105001450A (en) * | 2015-07-09 | 2015-10-28 | 天津大学 | High-directional-thermal-conductivity carbon/polymer composite material and preparation method |
| CN105086464A (en) * | 2015-07-28 | 2015-11-25 | 惠州市安品新材料有限公司 | Organic silicon heat-conducting composite sheet |
| CN107396610A (en) * | 2017-08-15 | 2017-11-24 | 深圳市鸿富诚屏蔽材料有限公司 | Anisotropy insulating heat-conductive pad and its manufacture method |
| CN111587061A (en) * | 2020-06-22 | 2020-08-25 | 深圳市鸿富诚屏蔽材料有限公司 | Preparation process and finished product of heat-conducting wave-absorbing tape |
Non-Patent Citations (1)
| Title |
|---|
| 碳纤维增强聚丙烯复合材料的制备及性能;李思宇等;《工程塑料应用》;20171210(第12期);第5-11页 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112938649A (en) | 2021-06-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101564828A (en) | Wire saw for cutting hard and fragile materials and manufacturing method thereof | |
| CN104361991B (en) | Coil encapsulation machine | |
| CN208601733U (en) | Three train ring wire saw cutter devices | |
| CN112938649B (en) | Chemical treatment type carbon fiber sequencing process and carbon fiber cutting device | |
| CN114479354B (en) | Preparation method of porous carbon fiber/epoxy resin composite material | |
| CN106881936A (en) | A kind of KT panel moulding apparatus | |
| CN211689651U (en) | Stranding and rope-forming mechanism prepared from stainless steel wire rope | |
| CN208645716U (en) | It is a kind of for producing the scroll saw of GaAs | |
| CN217454093U (en) | Equidistant cutting device is used in production of PE hot melt pipe with adsorption structure | |
| CN111883313B (en) | Production process of electric wire and cable | |
| CN212043497U (en) | Steel pipe machining equipment | |
| CN110640998B (en) | Vibration proof whip winding equipment and manufacturing equipment | |
| CN114274388A (en) | Wafer wire cutting device and wafer wire cutting method thereof | |
| CN209143413U (en) | A kind of process units of steel wire rubber stringing | |
| CN109608038B (en) | Modified is wave form glass fiber production facility for plastics | |
| CN202753488U (en) | Paper tube automatic production line | |
| CN217888488U (en) | Impregnation equipment capable of automatically feeding and discharging materials and controlling impregnation time | |
| CN113674989B (en) | Double-shaft peeling winding and rubber wrapping machine | |
| CN117672639A (en) | Cable wire threading equipment for cable processing | |
| CN220479756U (en) | Feeding assembly of cable wire drawing machine | |
| CN107579632A (en) | A kind of parallel automatic winding device of three-phase for small-sized motor stator | |
| CN218836232U (en) | Copper pipe cutting equipment for condenser processing | |
| CN220497621U (en) | Steel strand cutting device | |
| CN114851503B (en) | Flexible composite cable and manufacturing equipment thereof | |
| CN216465482U (en) | Wafer wire cutting device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 518000, 1st, 2nd and 3rd floors, building C, No.7 Fuyong East Avenue, Fenghuang community, Fuyong street, Bao'an District, Shenzhen City, Guangdong Province; 7th floor, Huayuan phase III, Fenghuang first industrial zone Applicant after: Shenzhen hongfucheng New Material Co.,Ltd. Address before: 518000, 1st, 2nd and 3rd floors, building C, No.7 Fuyong East Avenue, Fenghuang community, Fuyong street, Bao'an District, Shenzhen City, Guangdong Province; 7th floor, Huayuan phase III, Fenghuang first industrial zone Applicant before: SHENZHEN HFC SHIELDING PRODUCTS Co.,Ltd. |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant |