CN106625837A - Removable knife roll for short-cutting carbon fiber prepreg tape - Google Patents

Removable knife roll for short-cutting carbon fiber prepreg tape Download PDF

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Publication number
CN106625837A
CN106625837A CN201710020142.8A CN201710020142A CN106625837A CN 106625837 A CN106625837 A CN 106625837A CN 201710020142 A CN201710020142 A CN 201710020142A CN 106625837 A CN106625837 A CN 106625837A
Authority
CN
China
Prior art keywords
chopped
carbon fiber
dismantled
blade
short
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.)
Pending
Application number
CN201710020142.8A
Other languages
Chinese (zh)
Inventor
陆龙生
孙佳伟
梁林生
万珍平
汤勇
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
South China University of Technology SCUT
Original Assignee
South China University of Technology SCUT
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by South China University of Technology SCUT filed Critical South China University of Technology SCUT
Priority to CN201710020142.8A priority Critical patent/CN106625837A/en
Publication of CN106625837A publication Critical patent/CN106625837A/en
Pending legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D1/00—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
    • B26D1/01—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work
    • B26D1/12—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis
    • B26D1/25—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a non-circular cutting member
    • B26D1/26—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a non-circular cutting member moving about an axis substantially perpendicular to the line of cut
    • B26D1/28—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a non-circular cutting member moving about an axis substantially perpendicular to the line of cut and rotating continuously in one direction during cutting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/26—Means for mounting or adjusting the cutting member; Means for adjusting the stroke of the cutting member
    • B26D7/2614—Means for mounting the cutting member
    • 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
    • D01G1/02—Severing continuous filaments or long fibres, e.g. stapling to form staple fibres not delivered in strand form
    • D01G1/04—Severing continuous filaments or long fibres, e.g. stapling to form staple fibres not delivered in strand form by cutting

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Reinforced Plastic Materials (AREA)

Abstract

The invention provides a removable knife roll for short-cutting carbon fiber prepreg tape, comprising a stepped shaft and a knife roll of which both ends are provided with fixed end covers, and the knife roll comprises a cylindrical knife roll body, blades and pressing sheets; a plurality of channels parallel to the axis of the knife roll body are distributed circumferentially on the cylindrical surface of the knife roll body evenly, and the blades are fixed in the channels evenly and detachably; the pressing sheets are fixed in the channels between the adjacent blades detachably. The knife roll structure provided by the invention overcomes the impact of high prepreg tape viscosity on short-cut production from the point of mechanical view. The pressing sheets are arranged between two blades of the knife roll, so that the prepreg tape is compressed by the next pressing sheet to a certain extent after being short-cut by one blade to finish the cyclic short-cut actions of cutting-pressing-cutting and prevent the prepreg tape from sticking to the press roll and winding; the impact of high-viscosity prepreg tape on the short-cut production continuity is avoided effectively, the short-cut process is more stable, and the quality of the short-cut prepreg is improved.

Description

A kind of dismantled and assembled rotor being chopped for carbon fiber prepregs
Technical field
The present invention relates to fiber process field, more particularly to a kind of dismantled and assembled rotor being chopped for carbon fiber prepregs, Impact of the high viscosity prepreg tape to the continuous production that is chopped can be effectively prevented from, makes chopped process more stable, be improve chopped The quality of prepreg.
Background technology
Chopped carbon fiber reinforced resin composite is because its high specific strength, high ratio modulus, high temperature resistant, corrosion-resistant, resistance to tired The series of advantages such as labor, conduction and heat transfer property, are widely used in the fields such as Aero-Space, defence and military.By carbon fibre initial rinse Band is chopped into the prepreg of certain length, by techniques such as compression moldings, just can prepare compound with isotropic high-performance Material.
It is one important procedure of carbon fiber prepreg production line to be chopped.Current chopped technique is by pressure roller and rubber roll Prepreg tape feeding is driven to complete to be chopped to rotor.This three-roller type is chopped and is equipped in when prepare prepreg, and prepreg glues Degree is higher, easily causes viscous pressure roller phenomenon, serious waste material and impact continuous production.Reason is that rotor does not have when chopped Appropriate pulling force is applied to prepreg, prepreg tape is just easily sticked to be wound up on pressure roller.
Industrial conventional solution is to smear diluent in pressure roller to remove surface resin, but this scheme is brought Shortcoming be：1. production efficiency is reduced；2. diluent is smeared on pressure roller, carbon fiber prepregs can be affected, no Beneficial to follow-up processing technology.
For above-mentioned produced problem, need that the chopped mechanism of carbon fiber prepreg is carried out to go deep into systematic research.Pass The chopped method of the rotor of system cannot be adapted to.There are Chinese registered patent CN 201908163U " fibre chopping machine knives in prior art A kind of knife roller of fiber cutter is disclosed in roller ", but this invention does not adapt to being chopped for high viscosity prepreg tape, it is impossible to solve pre- Leaching band twines the problem of pressure roller and prepreg blanking.
The content of the invention
The invention provides a kind of dismantled and assembled rotor being chopped for carbon fiber prepregs, from mechanical angle preimpregnation is overcome With the high impact to the production that is chopped of viscosity, the compressing tablet in the middle of two blade positions of rotor is capable of achieving prepreg tape by a knife Piece applies certain thrust to it after being chopped by next compressing tablet position, completes the chopped action of circulation cut-press-cut, and keeps away Exempt from prepreg tape and be bonded at pressure roller to wind up.
The present invention is realized by following technical scheme：
A kind of dismantled and assembled rotor being chopped for carbon fiber prepregs, including multidiameter, rotor, the rotor includes cylindrical knife Roll body, blade, compressing tablet, the fixed end cap that is fixed on the roller cutter body two ends, the face of cylinder of the roller cutter body is circumferentially uniformly divided Some conduits parallel to rotor body axis are furnished with, described blade is removably uniformly fixed in the conduit, the pressure Piece is removably attached in the conduit between adjacent knife blades.
This programme arranges compressing tablet between two blade positions of rotor, is capable of achieving prepreg tape and is being chopped it by a blade Apply certain thrust to it by next compressing tablet position afterwards, complete the circulation cutting-press-cut and be chopped action, it is to avoid prepreg tape It is bonded at pressure roller to wind up.
Further, the blade is fixed in conduit by taperliner, and taperliner simple structure is firm, assembly and disassembly side Just, the fixation of blade is conducive to.
Further, described roller cutter body two ends are provided with for supporting and limit the pressure sheet support of blade radial-play Ring, the face of cylinder of the pressure sheet support ring is provided with the conduit matched with the compressing tablet.
Further, elastic washer is provided between the outer face of described fixed end cap and the pressure sheet support ring, is had Effect prevents from installing cause rigidity extruding to destroy at compressing tablet two ends during fixed end cap.
Further, the spacing of adjacent conduit is 3-10mm on described roller cutter body.
Further, the spacing between adjacent knife blades is 3-30mm, by the spacing for arranging blade, can meet chopped processing Various processing lengths need.
Further, the blade with the front end of compressing tablet apart from the highly equal of the roller cutter body face of cylinder, cut-press-cut by realization Circulation be chopped action, slowing down vibration.
Further, the material of the compressing tablet is stainless steel, and sharp edge polishing is arc-shaped, corrosion-resistant and will not be to prepreg Cause to damage.
Further, the material of the blade is carbon tool steel, there is stronger wearability and cutting ability.
Further, the shape of cross section of the taperliner is trapezoidal, is conducive to the fixation of blade
Compared to existing technology, knife roller structure of the invention overcomes the high shadow to the production that is chopped of prepreg tape viscosity from mechanical angle Ring, compressing tablet is set between two blade positions of rotor, be capable of achieving prepreg tape after being chopped by a blade by the next one Compressing tablet position applies certain thrust to it, complete the circulation cutting-press-cut and be chopped action, it is to avoid prepreg tape is bonded at pressure roller and twines It is wound up.Impact of the high viscosity prepreg tape to the continuous production that is chopped is effectively prevented from, makes chopped process more stable, improve The quality of chopped prepreg.
Description of the drawings
Fig. 1 is the assembly structural representation of the embodiment of the present invention.
Fig. 2 is the rotor partial elevational schematic diagram of the embodiment of the present invention.
Fig. 3 is the chopped schematic diagram of carbon fiber prepregs.
It is shown in Fig. 1：1- multidiameters, 2- fix end cap, 3- blades, 4- taperliners, 5- compressing tablets, 6- pressure sheet supports Ring, 7- elastic washers, 8- roller cutter bodies, 9- rubber rolls, 10- prepreg tapes, 11- pressure rollers, 12- rotors, 13- air blowing parts, 14- are chopped and presoak Material.
Specific embodiment
To further understand the present invention, with reference to the accompanying drawings and examples the present invention will be further described, and embodiment is not Energy here is repeated one by one, and the scope of protection of present invention is not limited to the scope of embodiment statement.
As depicted in figs. 1 and 2, a kind of dismantled and assembled rotor being chopped for carbon fiber prepregs, including multidiameter 1, rotor 12, the rotor 12 includes cylindrical knife roll body 8, blade 3, compressing tablet 5, the fixed end cap 2 that is fixed on the two ends of the roller cutter body 8, The face of cylinder of the roller cutter body 8 is uniformly distributed circumferentially some conduits parallel to the axis of roller cutter body 8, and described blade 3 leads to Cross taperliner 4 to be removably uniformly fixed in conduit, the compressing tablet 5 is removably attached to the groove between adjacent knife blades 3 In road, the blade 3 is with the front end of compressing tablet 5 apart from the highly equal of the face of cylinder of roller cutter body 8.The material of the compressing tablet 5 is not 304 not Rust steel, sharp edge polishing is arc-shaped.The material of the blade 3 is carbon tool steel, there is stronger wearability and cutting ability.Institute The shape of cross section for stating taperliner 4 is trapezoidal, is conducive to the fixation of blade 3.
The described two ends of roller cutter body 8 are provided with for supporting and limit the pressure sheet support ring 6 of the radial-play of blade 3, described The face of cylinder of pressure sheet support ring 6 is provided with the conduit matched with the compressing tablet 5.
Elastic washer 7 is provided between described fixed end cap 2 and the outer face of the pressure sheet support ring 6.
The spacing of adjacent conduit is 3-10mm on described roller cutter body 8；Spacing between adjacent knife blades 3 is 3-30mm, can It is distributed with compressing tablet 5 according to the requirement adjustable blade 3 of chopped prepreg length, concrete spacing can need choosing according to the chopped of reality Select that blade 3 is fixed in corresponding conduit and obtain.
As shown in Fig. 2 blade 3 and taperliner 4 are arranged on the same conduit of roller cutter body 8, adjacent conduit installs pressure Piece 5, blade 3 is sequentially distributed with compressing tablet 5.Blade 3 is equal with the setting height(from bottom) of compressing tablet 5, realizes that the circulation cut-press-cut is chopped dynamic Make, slowing down vibration.
The two ends of the compressing tablet 5 are supported by pressure sheet support ring 6, and rotor is finally fixed by end cap 2 and elastic washer 7.
The operation principle and process of the dismantled and assembled rotor that the present embodiment is provided is as follows：
1. according to prepreg length requirement, it is defined by the length on roller cutter body 8 and blade 3 is mounted equidistant, is embedded in taperliner 4 and consolidates Blade 3 is set, prevents blade 3 from vibrating, the damage of impact and equipment of the slowing down vibration to prepreg quality.
2. pressure sheet support ring 6 is put, the radial-play of blade 3 is limited, while installing compressing tablet 5.
3. roller cutter body 8 is enclosed within multidiameter 1, sliding bearing, fixed end cap 2, elastic washer 7 are loaded onto respectively, complete knife The assembling of roller.
4. it is chopped on equipment as shown in figure 3, the rotor 12 of the present embodiment is assembled to into prepreg tape, just can carries out prepreg tape short Cut production, the prepreg tape be chopped equipment include rubber roll 9, pressure roller 11, positioned at the air blowing part 13 of discharge end, prepreg tape 10 is in rubber roll 9th, the rotor 12 in being rotated under the drive of pressure roller 11 is cut to the chopped prepreg 14 of predetermined length.
5. in the implementation case, adjust the speed that is chopped and be respectively 10m/min, 20m/min, 30m/min, 40m/min is carried out Production, the length of prepreg 14 that is chopped is 50mm, although finding that the surface of pressure roller 11 gradually becomes sticky, prepreg tape 10 is without viscous pressure roller 11 Phenomenon occurs, and the length and surface quality of prepreg tape 10 are also well controlled, and equipment operates steadily, and illustrates that rotor 12 is played Avoid the phenomenon of viscous pressure roller, can steady production be chopped prepreg 14.
The above embodiment of the present invention is only intended to clearly illustrate example of the present invention, and is not to the present invention Embodiment restriction.For those of ordinary skill in the field, can also make on the basis of the above description The change or variation of other multi-forms.There is no need to be exhaustive to all of embodiment.It is all the present invention Any modification, equivalent and improvement made within spirit and principle etc., should be included in the protection of the claims in the present invention Scope.

Claims (10)

1. a kind of dismantled and assembled rotor being chopped for carbon fiber prepregs, including multidiameter (1), rotor (12), it is characterised in that： The rotor (12) includes cylindrical knife roll body (8), blade (3), compressing tablet (5), the fixation that is fixed on the roller cutter body (8) two ends End cap (2), the face of cylinder of the roller cutter body (8) is uniformly distributed circumferentially some conduits parallel to roller cutter body (8) axis, institute The blade (3) stated removably uniformly is fixed in the conduit, and the compressing tablet (5) is removably attached to adjacent knife blades (3) Between conduit in.
2. it is according to claim 1 for carbon fiber prepregs be chopped dismantled and assembled rotor, it is characterised in that：The blade (3) it is fixed in conduit by taperliner (4).
3. it is according to claim 1 for carbon fiber prepregs be chopped dismantled and assembled rotor, it is characterised in that：Described knife Roll body (8) two ends are provided with for supporting and limit the pressure sheet support ring (6) of blade (3) radial-play, the pressure sheet support ring (6) the face of cylinder is provided with the conduit matched with the compressing tablet (5).
4. it is according to claim 3 for carbon fiber prepregs be chopped dismantled and assembled rotor, it is characterised in that：Described consolidates Elastic washer (7) is provided between fixed end lid (2) and the outer face of the pressure sheet support ring (6).
5. it is according to claim 1 for carbon fiber prepregs be chopped dismantled and assembled rotor, it is characterised in that：Described knife The spacing of adjacent conduit is 3-10mm on roll body (8).
6. it is according to claim 5 for carbon fiber prepregs be chopped dismantled and assembled rotor, it is characterised in that：Adjacent knife blades (3) spacing between is 3-30mm.
7. it is according to claim 1 for carbon fiber prepregs be chopped dismantled and assembled rotor, it is characterised in that：The blade (3) with the front end of compressing tablet (5) apart from the highly equal of roller cutter body (8) face of cylinder.
8. it is according to claim 1 for carbon fiber prepregs be chopped dismantled and assembled rotor, it is characterised in that：The compressing tablet (5) material is stainless steel, and sharp edge polishing is arc-shaped.
9. it is according to claim 1 for carbon fiber prepregs be chopped dismantled and assembled rotor, it is characterised in that：The blade (3) material is carbon tool steel.
10. according to claim (1) for carbon fiber prepregs be chopped dismantled and assembled rotor, it is characterised in that：It is described The shape of cross section of taperliner (4) is trapezoidal.
CN201710020142.8A 2017-01-12 2017-01-12 Removable knife roll for short-cutting carbon fiber prepreg tape Pending CN106625837A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710020142.8A CN106625837A (en) 2017-01-12 2017-01-12 Removable knife roll for short-cutting carbon fiber prepreg tape

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710020142.8A CN106625837A (en) 2017-01-12 2017-01-12 Removable knife roll for short-cutting carbon fiber prepreg tape

Publications (1)

Publication Number Publication Date
CN106625837A true CN106625837A (en) 2017-05-10

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Application Number Title Priority Date Filing Date
CN201710020142.8A Pending CN106625837A (en) 2017-01-12 2017-01-12 Removable knife roll for short-cutting carbon fiber prepreg tape

Country Status (1)

Country Link
CN (1) CN106625837A (en)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2155309A1 (en) * 1997-09-30 2001-05-01 Torres Martinez M Transversal rotation curter for moving laminar strips
CN104084969A (en) * 2014-06-04 2014-10-08 华南理工大学 Carbon fiber yarn bundle chopping device and shearing method thereof
EP2902433A1 (en) * 2014-02-03 2015-08-05 Karl Meyer AG Process for manufacturing carbon fibres pellets
CN204844534U (en) * 2015-07-31 2015-12-09 车国志 Carbon fiber cutting wire
CN105274655A (en) * 2014-06-26 2016-01-27 Oci有限公司 Apparatus for producing pitch-based chopped carbon fiber and producing method of the chopped fiber
CN206561451U (en) * 2017-01-12 2017-10-17 华南理工大学 A kind of dismantled and assembled rotor being chopped for carbon fiber prepregs

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2155309A1 (en) * 1997-09-30 2001-05-01 Torres Martinez M Transversal rotation curter for moving laminar strips
EP2902433A1 (en) * 2014-02-03 2015-08-05 Karl Meyer AG Process for manufacturing carbon fibres pellets
CN104084969A (en) * 2014-06-04 2014-10-08 华南理工大学 Carbon fiber yarn bundle chopping device and shearing method thereof
CN105274655A (en) * 2014-06-26 2016-01-27 Oci有限公司 Apparatus for producing pitch-based chopped carbon fiber and producing method of the chopped fiber
CN204844534U (en) * 2015-07-31 2015-12-09 车国志 Carbon fiber cutting wire
CN206561451U (en) * 2017-01-12 2017-10-17 华南理工大学 A kind of dismantled and assembled rotor being chopped for carbon fiber prepregs

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
钟亮: "《中国优秀硕士学位论文全文数据库 工程科技I辑》", 15 May 2014 *

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Application publication date: 20170510