CN220619338U - Carbon fiber pre-oxidized fiber felt production line - Google Patents
Carbon fiber pre-oxidized fiber felt production line Download PDFInfo
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- CN220619338U CN220619338U CN202322230934.1U CN202322230934U CN220619338U CN 220619338 U CN220619338 U CN 220619338U CN 202322230934 U CN202322230934 U CN 202322230934U CN 220619338 U CN220619338 U CN 220619338U
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- carbon fiber
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- 229920000049 Carbon (fiber) Polymers 0.000 title claims abstract description 32
- 239000004917 carbon fiber Substances 0.000 title claims abstract description 32
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 title claims abstract description 32
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 24
- 238000005096 rolling process Methods 0.000 claims abstract description 65
- 230000007246 mechanism Effects 0.000 claims abstract description 39
- 238000009998 heat setting Methods 0.000 claims abstract description 9
- 238000009966 trimming Methods 0.000 claims abstract description 8
- 238000002203 pretreatment Methods 0.000 claims abstract description 4
- 229920000742 Cotton Polymers 0.000 claims description 23
- 239000002994 raw material Substances 0.000 claims description 18
- 238000009960 carding Methods 0.000 claims description 16
- 238000005520 cutting process Methods 0.000 claims description 3
- 238000006073 displacement reaction Methods 0.000 claims description 2
- 238000003825 pressing Methods 0.000 abstract description 3
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 229920000297 Rayon Polymers 0.000 description 2
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- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000010009 beating Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
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- 238000003763 carbonization Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000002657 fibrous material Substances 0.000 description 1
- 244000144992 flock Species 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 239000007770 graphite material Substances 0.000 description 1
- 238000005087 graphitization Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
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- 229910052751 metal Inorganic materials 0.000 description 1
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Landscapes
- Preliminary Treatment Of Fibers (AREA)
Abstract
The utility model discloses a carbon fiber pre-oxidized fiber felt production line, which comprises a pre-treatment mechanism, a feeding mechanism, a needle rolling mechanism and a post-treatment mechanism which are sequentially arranged, wherein the needle rolling mechanism comprises a pre-needle rolling machine, a first inverted needle rolling machine, a first positive needle rolling machine, a second inverted needle rolling machine and a second positive needle rolling machine which are sequentially arranged; the post-treatment mechanism comprises a heat setting machine and a trimming and coiling machine which are sequentially arranged; the utility model is provided with the needle pressing mechanism, the needle pressing mechanism comprises a pre-needle rolling machine, two positive needle rolling machines and two reverse needle rolling machines, the positive needle rolling machines and the reverse needle rolling machines are arranged at intervals, the thicker fiber felt can be processed, and meanwhile, the problem of lower tensile strength caused by insufficient tight interweaving of fibers which are singly needle-pressed can be solved. In addition, the needle rolling of the multiple needle rolling machines adopts a fine-thick-fine setting principle, so that needle marks on the surface of the needled product can be effectively reduced.
Description
Technical Field
The utility model belongs to the technical field of carbon fiber felt preparation, and particularly relates to a carbon fiber pre-oxidized fiber felt production line.
Background
The statements herein merely provide background information related to the present disclosure and may not necessarily constitute prior art.
Carbon Fiber (CF) is a fiber material of high strength, high modulus fiber with Carbon content above 95%. The microcrystalline graphite material is prepared by stacking organic fibers such as flaky graphite microcrystals along the axial direction of the fibers and performing carbonization and graphitization treatment. The carbon fiber has the characteristics of external softness and internal rigidity, lighter mass than metal aluminum, higher strength than steel, and not only has the inherent intrinsic characteristics of carbon materials, but also has the soft processability of textile fibers.
The pre-oxidized fiber is the basic material for producing carbon fiber, and has high flexibility, high temperature resistance, no flame delay and other advantages. When the carbon fiber felt is used as a heat insulation material, a certain thickness is required, and a bonding method is generally adopted to bond the multi-layer fiber felt into a whole in the prior art, but the defects of low bonding strength, easiness in cracking and layering in use in a high-temperature environment and reduction in heat insulation effect are overcome. The Chinese patent No. 203890698U discloses a viscose carbon fiber felt production line which is needled by a needling machine arranged to obtain different viscose non-woven fabrics, but the mode can only realize the production of carbon fiber felts with smaller thickness, and can not realize the preparation of thick fiber felts.
Disclosure of Invention
The utility model aims to provide a carbon fiber pre-oxidized fiber felt production line, which can produce thicker carbon fiber pre-oxidized fiber felt which is not easy to delaminate after being cut by a needle rolling mechanism.
In order to achieve the above object, the present utility model is realized by the following technical scheme:
in a first aspect, an embodiment of the present utility model provides a carbon fiber pre-oxidized fiber felt production line, including a pretreatment mechanism, a feeding mechanism, a needle rolling mechanism, and a post-treatment mechanism that are sequentially disposed, where the needle rolling mechanism includes a pre-needle rolling mill, a first inverted needle rolling mill, a first positive needle rolling mill, a second inverted needle rolling mill, and a second positive needle rolling mill that are sequentially disposed; the post-treatment mechanism comprises a heat setting machine and a trimming and coiling machine which are sequentially arranged.
As a further technical scheme, the pretreatment mechanism comprises a pre-opening cleaner, a cotton collecting machine and a main opening cleaner which are sequentially arranged.
As a further technical scheme, the pre-opening cleaner and the main opening cleaner are provided with curtains and rollers with angle nails, and the pre-oxidized fiber filaments are pulled loose.
As a further technical scheme, the cotton collecting machine adopts a drum type cotton collecting machine.
As a further technical scheme, the feeding mechanism comprises a cotton feeder, a carding machine and a layering machine.
As a further technical scheme, the cotton feeder adopts a volumetric feeding structure and comprises a raw material box and a raw material conveying mechanism, wherein the raw material conveying mechanism is arranged in the raw material box.
As a further technical scheme, the carding machine comprises a carding working roller and a stripping working roller, wherein the carding working roller and the stripping working roller comprise card clothing.
As a further technical scheme, the first positive needle rolling mill and the first reverse needle rolling mill adopt coarse needles, and the pre-needle rolling mill, the second positive needle rolling mill and the second reverse needle rolling mill adopt fine needles.
As a further technical scheme, the heat setting machine comprises an oven, and the oven heats air to 200 ℃.
As a further technical scheme, the edge cutting and rolling machine comprises a cutter and a winding roller.
The beneficial effects of the embodiment of the utility model are as follows:
the needle pressing mechanism is arranged on the carbon fiber pre-oxidized fiber felt production line and comprises a pre-needle rolling machine, two positive needle rolling machines and two reverse needle rolling machines, the positive needle rolling machines and the reverse needle rolling machines are arranged at intervals, thicker fiber felt can be processed, and meanwhile the problem that the tensile strength is low due to the fact that fiber interweaving of independent needle rolling is not tight can be solved. In addition, the needle rolling of the multiple needle rolling machines adopts a fine-thick-fine setting principle, so that needle marks on the surface of the needled product can be effectively reduced.
The carbon fiber pre-oxidized fiber felt production line is provided with the pre-opening cleaner and the main opening cleaner, so that the fiber felt can be opened and decontaminated twice in the processing process, large fibers are changed into small fibers or small bundles through the opening effect, conditions are created for carding in the subsequent process, and larger impurities, defects and partial flock which are easy to clear in the raw materials are removed through the decontaminating effect, so that the compactness and uniformity of the fiber felt in the needle rolling process are improved, and the product quality is improved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model.
FIG. 1 is a schematic diagram of the composition of the carbon fiber pre-oxidized fiber felt production line of the present utility model.
The schematic is used only as schematic;
wherein, 1, pre-opening the cleaner; 2. a cotton collecting machine; 3. a main cleaner; 4. a cotton feeder; 5. a separating and thinning machine; 6. a layering machine; 7. pre-needle rolling mill; 8. a first reversing mill; 9. a first positive needle mill; 10. a second reversing mill; 11. a second positive needle mill; 12. a heat setting machine; 13. and (5) trimming and rolling machine.
Detailed Description
It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the utility model. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs.
Example 1
In an exemplary embodiment of the present utility model, as shown in fig. 1, there is provided a carbon fiber pre-oxidized fiber felt production line, including a pre-treatment mechanism, a feeding mechanism, a needle rolling mechanism and a post-treatment mechanism, which are sequentially arranged, wherein the needle rolling mechanism includes a pre-needle rolling machine, a first inverted needle rolling machine, a first positive needle rolling machine, a second inverted needle rolling machine and a second positive needle rolling machine, which are sequentially arranged; the post-treatment mechanism comprises a heat setting machine and a trimming and coiling machine which are sequentially arranged.
Specifically, the pretreatment mechanism comprises a pre-opening cleaner, a cotton collecting machine and a main opening cleaner which are sequentially arranged. The pre-opening cleaner and the main opening cleaner are provided with a curtain and a roller which are planted with angle nails, the opening cleaner is used for opening and removing impurities of fiber blocks, large fiber blocks are generally shredded by the curtain and the roller which are planted with the angle nails, and then a beater rotating at high speed in a closed housing is used for beating the shredded fiber small blocks. The pre-oxidized fiber yarn is generally changed from a block shape into a smaller fiber bundle and a fiber bundle after being processed by a pre-opening cleaner, wherein the fiber bundle also contains smaller and more adhesive impurities, and the impurities are further removed by the main opening cleaner.
The cotton collecting machine adopts a drum type cotton collecting machine, and the working principle is that fed fibers are pumped through an air suction system and uniformly deposited on the net surface of the drum type cotton collecting machine to form a primary felt, and the primary felt is fed into the next working procedure.
Further, the feeding mechanism comprises a cotton feeder, a carding machine and a layering machine. The cotton feeder adopts positive displacement feeding structure, including raw materials case and raw materials transport mechanism, raw materials transport mechanism sets up in the raw materials case, raw materials transport mechanism's bottom is provided with raw materials transport mechanism discharge gate, raw materials case bottom is provided with the raw materials case discharge gate, sends the raw materials into next process through cotton feeder.
In this embodiment, the carding machine and the layering machine adopt the existing structures, wherein the carding machine is called a carding machine, the opened fiber clusters are further scattered and uniformly mixed, the single fibers separated by carding are mutually staggered by utilizing the mutual motion between the card clothing on the surfaces of the paired rollers, a uniform fiber web is formed by utilizing the curling and friction of the single fibers, and the single fibers are consolidated by a needling machine after being paved and crossed into a net blanket by the layering machine.
In this embodiment, the pre-needle rolling mill, the first positive needle rolling mill and the first negative needle rolling mill employ coarse needles, and the second positive needle rolling mill and the second negative needle rolling mill employ fine needles. In this embodiment, the pre-needle rolling stroke is larger, the needling frequency is lower, and the needling needle is longer; the forward needling stroke is smaller, the frequency is higher, and the needling is shorter. Because the embodiment is provided with a plurality of needling machines, in order to reduce the phenomenon of streaks (needle marks) on the surface of a needled product, the needling needles adopt the principle of thin-thick-thin, namely, the needling needles of pre-needling are slightly thin, so that the fiber web is compressed and reinforced under the action of milder needling, and the needling needles are selected according to the sequence of thick before thin during normal needling, so that the needle marks on the surface of the needled product are reduced. Reverse needling feature: after being connected with an upper needling machine, the needle is processed by fine needling, and the arrangement of two times of forward and backward needling is realized because the interweaving of the fibers which are independently needled is not tight enough and the tensile strength is lower; for thicker fibers, the needled face and the non-needled cotton have inconsistent tensile and compressive strength, so that the needled face and the non-needled cotton are easy to delaminate after needling, and the service life of the needled blanket is influenced.
The needle rolling mechanism is used for preparing the thick fiber pre-oxidized fiber felt, and the thickness of the thick fiber pre-oxidized fiber felt can be 38-76mm.
In this embodiment, the heat setting machine includes an oven, the oven heats air to 200 ℃, dries and sorts the fiber mat by using heated air, and further, a gas-gas heat exchanger is further disposed on the heat setting machine, and the waste heat gas exhausted after the drying of the setting machine is used for recovering heat energy and then returned into the oven of the setting machine to achieve the purpose of energy saving.
In this embodiment, the edge trimming and rolling machine includes a cutter and a wind-up roller, and the edge trimming and rolling machine is used for performing a width trimming treatment on the shaped product to cut off redundant burrs, and also can cut the product into different widths, and roll into rolls with the same or different lengths for use and transportation.
Each device adopted in the carbon fiber pre-oxidized fiber felt production line of the embodiment can select the existing structure according to the requirement.
The carbon fiber pre-oxidized fiber felt production line provided by the embodiment has the following working process: after the pre-oxidized fiber is opened and decontaminated by a pre-opening cleaner, a primary felt is formed under the action of a cotton collecting machine, then the primary felt enters a main opening cleaner for secondary opening and decontaminating, the primary felt is sent into a carding machine for carding by a cotton feeding machine, the layering is carried out on a layering machine, needle rolling treatment is carried out under the action of a plurality of needle rolling machines, shaping is carried out under the action of a heat shaping machine, and finally the shaped carbon fiber pre-oxidized fiber felt is obtained by edge cutting and coiling.
The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
Claims (10)
1. The carbon fiber pre-oxidized fiber felt production line is characterized by comprising a pre-treatment mechanism, a feeding mechanism, a needle rolling mechanism and a post-treatment mechanism which are sequentially arranged, wherein the needle rolling mechanism comprises a pre-needle rolling machine, a first inverted needle rolling machine, a first positive needle rolling machine, a second inverted needle rolling machine and a second positive needle rolling machine which are sequentially arranged; the post-treatment mechanism comprises a heat setting machine and a trimming and coiling machine which are sequentially arranged.
2. The carbon fiber pre-oxidized fiber felt production line of claim 1, wherein the pre-treatment mechanism comprises a pre-opener, a cotton collector and a main opener, which are sequentially arranged.
3. The carbon fiber pre-oxidized fiber felt production line according to claim 2, wherein the pre-opening cleaner and the main opening cleaner are provided with a curtain and a roller which are planted with angle nails, and the pre-oxidized fiber is torn loose.
4. The carbon fiber pre-oxidized fiber felt production line according to claim 2, wherein the cotton collector is a drum type cotton collector.
5. The carbon fiber pre-oxidized fiber felt production line of claim 1, wherein the feeding mechanism comprises a cotton feeder, a carding machine and a layering machine.
6. The carbon fiber pre-oxidized fiber felt production line of claim 5, wherein the cotton feeder adopts a positive-displacement feeding structure, and comprises a raw material box and a raw material conveying mechanism, wherein the raw material conveying mechanism is arranged in the raw material box.
7. The carbon fiber pre-oxidized fiber felt production line of claim 5, wherein the carding machine comprises a carding work roll and a dehairing work roll, and the carding work roll and the dehairing work roll comprise card clothing thereon.
8. The carbon fiber pre-oxidized fiber felt production line of claim 1, wherein the first positive needle mill and the first negative needle mill employ coarse needles, and the pre-needle mill, the second positive needle mill and the second negative needle mill employ fine needles.
9. The carbon fiber pre-oxidized fiber felt production line of claim 1, wherein the heat setting machine comprises an oven that heats air to 200 ℃.
10. The carbon fiber pre-oxidized fiber felt production line of claim 1, wherein the edge cutting and rolling machine comprises a cutter and a wind-up roll.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322230934.1U CN220619338U (en) | 2023-08-18 | 2023-08-18 | Carbon fiber pre-oxidized fiber felt production line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322230934.1U CN220619338U (en) | 2023-08-18 | 2023-08-18 | Carbon fiber pre-oxidized fiber felt production line |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220619338U true CN220619338U (en) | 2024-03-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322230934.1U Active CN220619338U (en) | 2023-08-18 | 2023-08-18 | Carbon fiber pre-oxidized fiber felt production line |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220619338U (en) |
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2023
- 2023-08-18 CN CN202322230934.1U patent/CN220619338U/en active Active
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