CN113882089A - Process for preparing prepreg by continuous method - Google Patents
Process for preparing prepreg by continuous method Download PDFInfo
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- CN113882089A CN113882089A CN202111253574.6A CN202111253574A CN113882089A CN 113882089 A CN113882089 A CN 113882089A CN 202111253574 A CN202111253574 A CN 202111253574A CN 113882089 A CN113882089 A CN 113882089A
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- roller
- molecular weight
- hopper
- weight polyethylene
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
- D01F6/44—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds as major constituent with other polymers or low-molecular-weight compounds
- D01F6/46—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds as major constituent with other polymers or low-molecular-weight compounds of polyolefins
-
- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D13/00—Woven fabrics characterised by the special disposition of the warp or weft threads, e.g. with curved weft threads, with discontinuous warp threads, with diagonal warp or weft
- D03D13/004—Woven fabrics characterised by the special disposition of the warp or weft threads, e.g. with curved weft threads, with discontinuous warp threads, with diagonal warp or weft with weave pattern being non-standard or providing special effects
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/70—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres
- D04H1/74—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres the fibres being orientated, e.g. in parallel (anisotropic fleeces)
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D1/00—Treatment of filament-forming or like material
- D01D1/02—Preparation of spinning solutions
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D13/00—Complete machines for producing artificial threads
- D01D13/02—Elements of machines in combination
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D5/00—Formation of filaments, threads, or the like
- D01D5/12—Stretch-spinning methods
- D01D5/16—Stretch-spinning methods using rollers, or like mechanical devices, e.g. snubbing pins
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D7/00—Collecting the newly-spun products
-
- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D11/00—Double or multi-ply fabrics not otherwise provided for
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
- D04H1/4282—Addition polymers
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- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2321/00—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D10B2321/02—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds polyolefins
- D10B2321/021—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds polyolefins polyethylene
- D10B2321/0211—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds polyolefins polyethylene high-strength or high-molecular-weight polyethylene, e.g. ultra-high molecular weight polyethylene [UHMWPE]
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Reinforced Plastic Materials (AREA)
- Moulding By Coating Moulds (AREA)
Abstract
The application relates to a process for preparing a prepreg by a continuous method, which comprises the following steps: s1, preparing raw materials; s2, spinning the raw materials to form a semi-finished product of ultra-high molecular weight polyethylene fiber; s3, carrying out multi-stage drafting on the semi-finished product ultra-high molecular weight polyethylene fiber to form a finished product, and simultaneously dipping a liquid matrix; s4, solidifying the matrix on the ultra-high molecular weight polyethylene fiber layer to form an ultra-high molecular weight polyethylene fiber prepreg; s5, laminating two pieces of ultra-high molecular weight polyethylene fiber prepreg after mutually orthogonal alignment according to the warp and weft directions to form a piece of weftless fabric; in S3, the substrate is drawn in multiple stages by a drawing device and impregnated by an impregnation device. This application has the mode that finished product ultra high molecular weight polyethylene fiber that will make the completion passes through the preimpregnation material and stores for difficult looks mutual friction leads to the effect of wearing and tearing between the ultra high molecular weight polyethylene fiber.
Description
Technical Field
The application relates to the field of fabrics, in particular to a process for preparing prepreg by a continuous method.
Background
Ultra-high molecular weight polyethylene fiber, also called high-strength high-modulus polyethylene fiber, is the fiber with the highest specific strength and specific modulus in the world at present, and is often used for manufacturing bulletproof clothes, bulletproof helmets and bulletproof armors of other military facilities and equipment.
The cloth made of ultra-high molecular weight polyethylene fiber is called weftless cloth, and the preparation process in the related technology is as follows: after preparing raw materials, extruding the raw materials into a spinning box through a screw extruder, spraying the raw materials in the spinning box through a spinneret plate, heating, drawing and stretching the raw materials, uniformly winding the raw materials on a cloth tube, uniformly laying the stretched ultra-high molecular weight polyethylene fibers into two layers in the radial direction and the weft direction, mutually bonding the two layers of fibers through resin, and pressing the fibers into finished cloth.
With respect to the related art among the above, the inventors consider that the following drawbacks exist: in the process of manufacturing the weftless fabric by winding the ultra-high molecular weight polyethylene fibers on the fabric drum and then pulling out the weftless fabric from the fabric drum, the ultra-high molecular weight polyethylene fibers are possibly abraded due to mutual friction, so that the uniformity of the ultra-high molecular weight polyethylene fibers is reduced, and the performance of the final finished fabric is reduced.
Disclosure of Invention
In order to solve the problem that abrasion is caused by mutual friction between ultrahigh molecular weight polyethylene fibers when the ultrahigh molecular weight polyethylene fibers are led out from the non-woven cloth, the application provides a process for preparing a prepreg by a continuous method.
The process for preparing the prepreg by the continuous method adopts the following technical scheme:
a process for the continuous preparation of prepreg comprising the steps of:
s1, preparing raw materials;
s2, heating and stirring the raw materials, and then sending the raw materials into a spinning box for spinning to form a semi-finished product of ultra-high molecular weight polyethylene fiber;
s3, uniformly spreading the semi-finished product ultra-high molecular weight polyethylene fiber, then carrying out multi-stage drafting and stretching to obtain a finished product, and simultaneously dipping the liquid matrix;
s4, solidifying the matrix on the ultra-high molecular weight polyethylene fiber layer to form an ultra-high molecular weight polyethylene fiber prepreg;
s5, laminating two pieces of ultra-high molecular weight polyethylene fiber prepreg after mutually orthogonal alignment according to the warp and weft directions to form a piece of weftless fabric;
in S3, the semi-finished ultrahigh molecular weight polyethylene fiber is drawn in multiple stages by a drawing device, and the ultrahigh molecular weight polyethylene fiber layer is impregnated by an impregnation device.
By adopting the technical scheme, the semi-finished product of the ultra-high molecular weight polyethylene fiber is stretched into the finished product of the ultra-high molecular weight polyethylene fiber, meanwhile, the matrix is impregnated on the ultra-high molecular weight polyethylene fiber, the finished product of the ultra-high molecular weight polyethylene fiber is made into the prepreg and then stored, finally, two pieces of the ultra-high molecular weight polyethylene fiber prepreg are orthogonally placed and then laminated to be made into the weftless fabric, and the ultra-high molecular weight polyethylene fiber is stored in the prepreg mode, so that the ultra-high molecular weight polyethylene fiber is not easy to rub with each other to cause damage when being stored and taken, and the quality of the finally made weftless fabric is improved.
Optionally, the draft device includes the frame, rotate in the frame and install a plurality of draft rollers that are parallel to each other, the frame mount a plurality of with the same driving motor of draft roller quantity, driving motor with the transmission of draft roller one-to-one is connected, the frame is provided with the arrangement mechanism that is used for putting in order the fibre and spreads the silk.
Through adopting above-mentioned technical scheme, semi-manufactured goods fibre is carried to the frame after, synchronous start driving motor, simultaneously along fibrous direction of transportation adjust driving motor's rotational speed in proper order, make driving motor's rotational speed improve in proper order along fibrous direction of transportation, then make the rotational speed of draft roller improve in proper order and carry out the draft to the fibre, when carrying out the draft to semi-manufactured goods spacing fibre through the draft roller, arrange in order the fashioned fibre of drawing through arrangement mechanism, make the fibre comparatively even in the fibre distribution when transporting to the impregnating device department and carrying out the matrix flooding, and then make each position intensity of the fashioned preimpregnation material of final preparation comparatively even.
Optionally, the arrangement mechanism comprises a mounting frame mounted at the discharge end of the frame, a pair of driving rollers is arranged at the feed end of the mounting frame, the opposite ends of the two driving rollers are rotatably connected with the mounting frame, the opposite ends of the two driving rollers extend obliquely along the same direction, a rubber roller is arranged between the two driving rollers, the two ends of the rubber roller are coaxially provided with connecting holes, the opposite ends of the two driving rollers are respectively embedded in the two connecting holes in a matching manner, the axis of the rubber roller is perpendicular to the transportation direction of the frame, two parallel compression rollers are rotatably mounted at the discharge end of the mounting frame, the compression rollers are horizontal, the axis of the compression rollers is perpendicular to the fiber transportation direction of the frame, the mounting frame is provided with two first arrangement motors which are respectively in transmission connection with the two driving rollers, the mounting bracket is provided with a second arrangement motor and is connected with one end of any one of the compression rollers.
By adopting the technical scheme, after the semi-finished product fiber is output from the last drawing roller, the semi-finished product fiber bypasses the rubber rollers driven to rotate by the two inclined driving rollers, the arc-shaped rubber rollers gather loose finished product fiber bundles, the gathered finished product fiber bundles are restrained into uniform layers by the two pressing rollers, then the fiber layers are impregnated with the matrix, and the bent rubber rollers gather and restrain the finished product fiber, so that the fiber is uniformly distributed when being gathered in a centralized manner.
Optionally, the mounting bracket rotates and installs two first installation pieces, the rotation plane of first installation piece is parallel with two the plane at the axis place of drive roller, two the drive roller rotates respectively to be installed two on the first installation piece, first arrangement motor is installed on the first installation piece, two second installation pieces are installed to the mounting bracket still vertical sliding, arbitrary the both ends of compression roller are rotated respectively and are installed two on the second installation piece, the mounting bracket is provided with and is used for fixing the first mounting of first installation piece, the mounting bracket is provided with and is used for fixing the second mounting of second installation piece.
Through adopting above-mentioned technical scheme, the required thickness of final cloth is different, and the required thickness of preimpregnation material is also different, and the staff when making preimpregnation material adjusts the crookedness of rubber roller through rotating first installation piece and adjusts the concentration and the thickness of finished product fibre with the thickness of the required preimpregnation material of cooperation.
Optionally, the first fixing part comprises a worm rotatably mounted on the mounting frame, the thread turning directions of two ends of the worm are opposite, worm wheels are coaxially mounted on the two first mounting blocks, the two worm wheels are respectively meshed with two ends of the worm, a hand wheel is coaxially arranged at one end of the worm, a pointer is arranged on the hand wheel, and scales matched with the pointer are coaxially arranged on the mounting frame around the axis of the hand wheel; the second mounting is including installing arbitrary rack on the second installation piece, the rack is vertical, the mounting bracket rotates installs drive gear, drive gear with the rack toothing, drive gear with worm drive is connected.
Through adopting above-mentioned technical scheme, the staff relatively easily rotates the worm through the hand wheel, then drive worm wheel and first installation piece through the worm and rotate, and fix first installation piece through the self-locking function between worm and the worm wheel, it is fixed to adjust rack and second installation piece through the drive gear who is connected with the worm transmission simultaneously, make the staff adjust the distance between two compression rollers when the crookedness of rubber roller, and then make the staff can be comparatively conveniently with the distance between two compression rollers adjust to the degree with rubber roller matched with, simultaneously through the cooperation between pointer on the hand wheel and the scale, can comparatively confirm the crooked degree of rubber tube directly perceivedly.
Optionally, the dipping device comprises a bracket, the bracket is arranged at the discharge end of the frame, the bracket is vertically provided with a hopper in a sliding way, the hopper is internally provided with a heating element and is provided with a positioning element for fixing the hopper on the bracket, a flat discharge pipe is arranged on the bottom wall of the hopper, one end of the discharge pipe is communicated with the inner cavity of the hopper, the discharge pipe is rotatably provided with a first horizontal material roller, the bracket below the hopper is provided with a recovery box, the vertical projection of the discharge pipe is positioned in the recovery box, a second material roller is rotatably arranged in the recovery box, the upper side of the second material roller is higher than the side wall of the recovery box, the second material roller is positioned under the first material roller, the recycling tank is provided with a recycling pump, and the discharge end of the recycling pump is communicated with the inner cavity of the hopper through a pipeline.
Through adopting above-mentioned technical scheme, the heating member heats the base member in the hopper so that the base member in the hopper keeps constant temperature, make the base member in the hopper be difficult for the solidification, carry to between discharging pipe and the first material roller after the arrangement of rubber roller and compression roller on the fibrous layer, base member in the hopper paints on the fibrous layer through the discharging pipe, then extrude fibrous layer and base member layer through the cooperation between first material roller and the second material roller, make the base member layer comparatively evenly with fibrous layer parcel back, accomplish the base member flooding to the fibrous layer, unnecessary base member can drop in the collection box, then reuse in the recovery pump extraction backward flow to the hopper by the collection box.
Optionally, the lower end of the tapping pipe is bent in a direction opposite to the fiber transport direction of the machine frame.
Through adopting above-mentioned technical scheme, when the discharging pipe that is crooked form was carrying liquid base member to fibrous layer on, the impact force that the liquid base member fell on the fibrous layer is less, and then the shake that makes the fibrous layer appear is less for the base member on the fibrous layer is difficult to be thrown away from the fibrous layer because the shake of fibrous layer.
Optionally, the hopper internal rotation is installed and is the horizontally closed roll, the hopper lateral wall be provided with closed motor with the closed roll transmission is connected, closed roll lateral wall circumference interval is provided with a plurality of shroudings, the closed groove has been seted up to the hopper diapire, the closed groove with the discharging pipe intercommunication, the downside of closed roll is located in the closed groove just the shrouding lateral wall with the laminating of closed groove lateral wall.
Through adopting above-mentioned technical scheme, the sealed motor starts to drive the seal roll and rotates, and then drives the shrouding and rotate the liquid base member stirring in the hopper for liquid base member in the hopper is comparatively even, provides pressure to the liquid organism in the discharging tube through the shrouding simultaneously, makes the difficult jam of liquid organism in the discharging tube, seals the hopper through the cooperation of minute board and closed slot simultaneously, and the closure of hopper is comparatively convenient.
Optionally, the hopper with the diapire of collection box all is hopper-shaped.
Through adopting above-mentioned technical scheme, liquid organism is more swift that is to flow on hopper and the collection box diapire that leaks hopper-shaped, and makes on hopper and the collection box diapire difficult deposit base member, and then makes hopper and collection box inside comparatively clean, is difficult for polluting new base member.
Optionally, the drive roller lateral wall circumference interval is provided with a plurality of locating plates, connecting hole lateral wall circumference interval be equipped with a plurality of with the constant head tank of locating plate one-to-one, the locating plate one-to-one slides and installs in the constant head tank.
Through adopting above-mentioned technical scheme, the drive roller passes through the cooperation between locating plate and the constant head tank for the drive roller drive rubber roller when rotating difficult and the rubber roller between appear sliding relatively, the rotation of rubber roller is comparatively stable.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the semi-finished product ultra-high molecular weight polyethylene fiber is stretched into a finished product ultra-high molecular weight polyethylene fiber, meanwhile, a matrix is impregnated on the ultra-high molecular weight polyethylene fiber, the finished product ultra-high molecular weight polyethylene fiber is made into a prepreg and stored, finally, two pieces of ultra-high molecular weight polyethylene fiber prepreg are orthogonally placed and then laminated to be made into the weftless fabric, and the ultra-high molecular weight polyethylene fiber is stored in a prepreg mode, so that the ultra-high molecular weight polyethylene fiber is not easy to rub with each other to cause damage when being stored and taken, and the quality of the finally made weftless fabric is improved;
2. after the semi-finished product fiber is output from the last drafting roller, the semi-finished product fiber bypasses a rubber roller driven by two inclined driving rollers to rotate, the arc-shaped rubber roller gathers loose finished product fiber bundles, the gathered finished product fiber bundles are restrained into a uniform layer by two pressing rollers, then a matrix is impregnated on a fiber layer, and the bent rubber roller gathers and restrains the finished product fiber, so that the fiber is distributed uniformly when being gathered in a centralized way;
3. the sealed motor starts to drive the seal roll and rotates, and then drives the shrouding and rotate the liquid base member stirring in the hopper for liquid base member in the hopper is comparatively even, provides pressure to the liquid organism in the discharging tube through the shrouding simultaneously, makes the difficult jam of liquid organism in the discharging tube, seals the hopper through the cooperation of minute board and seal groove simultaneously, and the closure of hopper is comparatively convenient.
Drawings
Fig. 1 is a schematic perspective view of the present application.
Fig. 2 is a schematic perspective view of the present application, in which a part of the machine frame is omitted and the rubber roller is cut.
Fig. 3 is an enlarged schematic view of a portion a in fig. 2.
Fig. 4 is a perspective view of the present application at a second mounting block.
Fig. 5 is a schematic cross-sectional view of the hopper and the recovery box of the present application, with the bracket omitted.
Reference numerals: 1. a drafting device; 11. a frame; 12. a drafting roller; 13. a drive motor; 2. a sorting mechanism; 21. a mounting frame; 22. a drive roller; 221. positioning a plate; 23. a rubber roller; 231. connecting holes; 232. positioning a groove; 24. a compression roller; 25. a first mounting block; 251. a first collation motor; 26. a second mounting block; 261. a second sorting motor; 3. a first fixing member; 31. a worm; 32. a worm gear; 33. a hand wheel; 34. a pointer; 35. calibration; 4. a second fixing member; 41. a rack; 42. a transmission gear; 5. an impregnation device; 51. a support; 52. a hopper; 521. a heating rod; 522. closing the groove; 53. a positioning member; 531. a screw rod; 532. a polish rod; 54. a discharge pipe; 55. a first material roller; 56. a recycling bin; 561. a second material roller; 562. a recovery pump; 6. a sealing roller; 61. closing the motor; 62. closing the plate; 7. a bevel gear.
Detailed Description
The present application is described in further detail below with reference to FIGS. 1-5.
The embodiment of the application discloses a process for preparing a prepreg by a continuous method, which comprises the following steps:
s1, preparing raw materials;
s2, heating and stirring the raw materials, and then sending the raw materials into a spinning box for spinning to form a semi-finished product of ultra-high molecular weight polyethylene fiber;
s3, uniformly spreading the semi-finished product ultra-high molecular weight polyethylene fiber, then carrying out multi-stage drafting and stretching to obtain a finished product, and simultaneously dipping the liquid matrix;
s4, solidifying the matrix on the ultra-high molecular weight polyethylene fiber layer to form an ultra-high molecular weight polyethylene fiber prepreg;
and S5, laminating two pieces of ultra-high molecular weight polyethylene fiber prepreg after mutually orthogonal alignment according to the warp and weft directions to form the weftless fabric.
Referring to fig. 1, in S3, the semi-finished ultrahigh molecular weight polyethylene fiber is drawn in multiple stages by the drawing device 1, the drawing device 1 includes a frame 11 in a vertical plate shape, a plurality of horizontal drawing rollers 12 are rotatably mounted on the vertical plate surface of the frame 11, and all the drawing rollers 12 are parallel to each other. A plurality of driving motors 13 corresponding to the drafting rollers 12 are fixedly arranged on the frame 11, and the output shafts of the driving motors 13 are coaxially and fixedly connected with one ends of the drafting rollers 12 which are rotatably arranged on the frame 11.
Referring to fig. 2 and 3, the rack 11 is provided with the arranging mechanism 2, the arranging mechanism 2 includes a mounting bracket 21 fixedly mounted at a discharge end of the rack 11, the mounting bracket 21 is rotatably mounted with two first mounting blocks 25 toward one end of the rack 11, a rotation plane of the two first mounting blocks 25 is vertical and overlapped, and the rotation plane of the first mounting blocks 25 is perpendicular to a fiber transportation direction of the rack 11. The mounting frame 21 is provided with a first fixing member 3, and the first fixing member 3 includes a worm wheel 32 fixedly mounted on the first mounting block 25, and the worm wheel 32 is coaxial with the rotation axis of the first mounting block 25 on which the worm wheel is located. The frame 11 is rotatably provided with a horizontal worm 31, threads of two ends of the worm 31 are opposite, and two ends of the worm 31 are respectively meshed with two worm wheels 32. The worm 31 rotates to drive the two worm wheels 32 and the two mounting blocks to rotate reversely.
Referring to fig. 2 and 3, one end of the worm 31 passes through the mounting frame 21 and is coaxially and fixedly provided with a hand wheel 33, a pointer 34 is further fixedly mounted on the hand wheel 33, and the mounting frame 21 is provided with a scale 35 matched with the pointer 34.
Referring to fig. 3 and 4, a driving roller 22 is rotatably mounted on the first mounting block 25, a first arranging motor 251 is fixedly mounted on the first mounting block 25, and an output shaft of the first arranging motor 251 is coaxially and fixedly connected with one end of the driving roller 22. The rotating plane of the driving roller 22 is parallel to the rotating plane of the first mounting block 25, and six rectangular positioning plates 221 are welded on the side wall of one end of the driving roller 22, which is far away from the first mounting block 25, at intervals in the circumferential direction. Be provided with rubber roller 23 between two drive rollers 22, all coaxial seting up on the both ends face of rubber roller 23 with drive roller 22 complex connecting hole 231, the lateral wall circumference interval of connecting hole 231 is equipped with six constant head tanks 232 with locating plate 221 complex, the one end in opposite directions of two drive rollers 22 slides respectively and installs in two connecting holes 231, locating plate 221 cooperates respectively to slide and installs in six constant head tanks 232.
Referring to fig. 3 and 4, the curvature of the rubber roller 23 is adjusted by rotating the first mounting block 25, so that the driving roller 22 and the rubber roller 23 are not easily slipped by the cooperation of the positioning plate 221 and the positioning groove 232. One end of the mounting frame 21, which is far away from the rack 11, is rotatably provided with a press roller 24, the press roller 24 is horizontal, and the axis of the press roller 24 is vertical to the fiber conveying direction of the rack 11.
Referring to fig. 3 and 4, another press roller 24 is disposed just below the press roller 24, and the two press rollers 24 are parallel to each other. The mounting frames 21 at the two ends of the pressing roller 24 are vertically slidably provided with a second mounting block 26, and the two ends of the pressing roller 24 at the lower side are respectively rotatably arranged on the two second connecting blocks.
Referring to fig. 3 and 4, the axis of the press roll 24 is parallel to the axis of the draft roller 12, a second arranging motor 261 is fixedly installed on one second installation block 26 on one side of the free end of the draft roller 12, and the output shaft of the second arranging motor 261 is coaxially and fixedly connected with the press roll 24 on the lower side.
Referring to fig. 3 and 4, the mounting frame 21 is provided with a second fixing member 4, the second fixing member 4 includes a rack 41 and a transmission gear 42, and the rack 41 is vertical and welded to the second mounting block 26 on which the second arranging motor 261 is mounted. The transmission gear 42 is rotatably installed on the mounting frame 21 and meshed with the rack 41, and the transmission gear 42 is in transmission connection with the worm 31 through the bevel gear 7. The first mounting block 25 rotates and the second mounting block 26 synchronously slides through a transmission gear 42 in transmission connection with the worm 31.
Referring to fig. 2 and 5, the ultra high molecular weight polyethylene fiber layer is impregnated through the matrix by the impregnation device 5 in S3. The dipping device 5 comprises a bracket 51, the bracket 51 is fixedly installed on one end of the mounting frame 21 far away from the rack 11, a fixing piece is arranged on the bracket 51, the fixing piece comprises a vertical polished rod 532 fixedly installed on the bracket 51 and a vertical screw rod 531 rotatably installed on the bracket 51, the bracket 51 is provided with a hopper 52 with a funnel-shaped bottom, the upper opening of the hopper 52 is horizontal, the polished rod 532 penetrates through the hopper 52 and is in sliding fit with the hopper 52, and the screw rod 531 penetrates through the hopper 52 and is in threaded fit with the hopper 52. The hopper 52 is slidably mounted on the bracket 51 by the engagement between the polished rod 532 and the lead screw 531, and the hopper 52 is fixed by the lead screw 531.
Referring to fig. 2 and 5, a horizontal sealing roller 6 is rotatably mounted in the hopper 52, and a heating member is further disposed in the hopper 52, and the heating member includes two heating rods 521 fixedly mounted on the side wall of the hopper 52. A closed motor 61 is fixedly arranged on the side wall of the hopper 52, and an output shaft of the closed motor 61 is coaxially and fixedly connected with one end of the closed roller 6. The axis of the sealing roller 6 is parallel to the axis of the press roller 24, a plurality of rectangular sealing plates 62 are integrally and circumferentially arranged on the side wall of the sealing roller 6 at intervals, and the length direction of each rectangular sealing plate 62 is parallel to the axis of the sealing roller 6. The bottom wall of the hopper 52 is provided with a closed groove 522 with an arc-shaped cross section, the lower side of the closed roller 6 is positioned in the closed groove 522, and one side wall of the closed plate 62 far away from the closed roller 6 is abutted with the side wall of the closed groove 522. The bottom wall of the hopper 52 is integrally provided with a discharge pipe 54, the cross section of the discharge pipe 54 is rectangular, and the lower end of the discharge pipe 54 is bent toward the mounting frame 21. The side wall of the discharge pipe 54 is also rotatably provided with a first material roller 55, the first material roller 55 is parallel to the closed roller 6, and the discharge pipe 54 is communicated with the inner cavity of the closed groove 522.
Referring to fig. 2 and 5, a hopper 52 is fixedly provided with a hopper-shaped recycling box 56 at the bottom wall of the bracket 51, the vertical projections of the discharging pipe 54 and the first material roller 55 are located in the recycling box 56, a second material roller 561 is rotatably mounted in the recycling box 56, the second material roller 561 is located under the first material roller 55, and the upper side of the second material roller 561 extends out of the recycling box 56. The fiber layer passes through between the first material roller 55 and the second material roller 561, the liquid matrix falls on the fiber layer after flowing out of the material outlet pipe 54, and the liquid matrix is squeezed and impregnated into the fiber layer through the first material roller 55 and the second material roller 561.
Referring to fig. 2 and 5, a recovery pump 562 is fixedly mounted on the bottom wall of the recovery tank 56, a feed end of the recovery pump 562 is communicated with an inner cavity of the recovery tank 56 through a pipeline, and a discharge end of the recovery pump 562 is used for re-conveying redundant organisms in the recovery tank 56 into the hopper 52 through a water pipe.
The implementation principle of the process for preparing the prepreg by the continuous method in the embodiment of the application is as follows: starting a driving motor 13, inputting a semi-finished product of ultra-high molecular weight polyethylene fiber to a frame 11, after the semi-finished product of ultra-high molecular weight polyethylene fiber is drafted by a drafting roller 12 to form a finished product of ultra-high molecular weight polyethylene fiber, inputting the finished product of ultra-high molecular weight polyethylene fiber into a mounting frame 21 to bypass a rubber roller 23, starting a first arranging motor 251 to drive the rubber roller 23 to rotate through a driving roller 22, inputting the ultra-high molecular weight polyethylene fiber layer uniformly gathered by the rubber roller 23 between two pressing rollers 24, starting a second arranging motor 261 to drive the pressing roller 24 positioned at the lower side to rotate, inputting the curved ultra-high molecular weight polyethylene fiber layer into a bracket 51 after the two pressing rollers 24 laminate and flatten, outputting the ultra-high molecular weight polyethylene fiber layer after passing through a space between a first material roller 55 and a second material roller 561, and when the ultra-high molecular weight polyethylene fiber layer passes through a space between the first material roller 55 and the second material roller 561, the sealing motor 61 is started to drive the sealing roller 6 to rotate, the sealing roller 6 coats the liquid matrix in the hopper 52 on the fiber layer through the discharge pipe 54, and the matrix is soaked into the fiber layer through the first material roller 55 and the second material roller 561 and then is output until the liquid matrix is solidified to form the ultra-high molecular weight polyethylene fiber prepreg.
The worker drives the worm 31 to rotate by rotating the hand wheel 33, further drives the worm wheel 32 and the first mounting block 25 to rotate to adjust the curvature of the rubber roller 23, drives the transmission gear 42 to rotate by the bevel gear 7, further adjusts the heights of the second mounting block 26 and the compression roller 24, and adjusts the heights of the hopper 52 and the first material roller 55 by rotating the screw 531.
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 (10)
1. A process for preparing a prepreg by a continuous method is characterized by comprising the following steps: the method comprises the following steps:
s1, preparing raw materials;
s2, heating and stirring the raw materials, and then sending the raw materials into a spinning box for spinning to form a semi-finished product of ultra-high molecular weight polyethylene fiber;
s3, uniformly spreading the semi-finished product ultra-high molecular weight polyethylene fiber, then carrying out multi-stage drafting and stretching to obtain a finished product, and simultaneously dipping the liquid matrix;
s4, solidifying the matrix on the ultra-high molecular weight polyethylene fiber layer to form an ultra-high molecular weight polyethylene fiber prepreg;
s5, laminating two pieces of ultra-high molecular weight polyethylene fiber prepreg after mutually orthogonal alignment according to the warp and weft directions to form a piece of weftless fabric;
in S3, the semi-finished ultrahigh molecular weight polyethylene fiber is drawn in multiple stages by the drawing device (1), and the ultrahigh molecular weight polyethylene fiber layer is impregnated by the impregnation device (5).
2. A process for the continuous preparation of prepregs according to claim 1, characterized in that: draft device (1) includes frame (11), rotate in frame (11) and install a plurality of draft roller (12) that are parallel to each other, frame (11) install a plurality of with the same driving motor (13) of draft roller (12) quantity, driving motor (13) with draft roller (12) one-to-one transmission is connected, frame (11) are provided with and are used for putting in order arrangement mechanism (2) of spreading the silk to the fibre.
3. A process for the continuous production of prepregs according to claim 2, characterized in that: arranging mechanism (2) is including installing mounting bracket (21) of frame (11) discharge end, the feed end of mounting bracket (21) is provided with a pair of drive roller (22), two the one end that backs on the back of the body of drive roller (22) with mounting bracket (21) rotates to be connected, two the one end in opposite directions of drive roller (22) is followed same direction slope and is extended, two be provided with rubber roller (23) between drive roller (22), connecting hole (231) have all been seted up to the both ends of rubber roller (23) are coaxial, two the cooperation is inlayed respectively to the one end in opposite directions of drive roller (22) is established two in connecting hole (231), the axis of rubber roller (23) with the direction of transportation of frame (11) is perpendicular, the discharge end of mounting bracket (21) is rotated and is installed two compression roller (24) that are parallel to each other, compression roller (24) are the level just the axis of compression roller (24) with the direction of transportation of fibre of frame (11) is perpendicular, the mounting bracket (21) is provided with two first arrangement motors (251) and is connected with two drive roller (22) transmission respectively, mounting bracket (21) is provided with second arrangement motor (261) and is connected with the one end of arbitrary compression roller (24).
4. A process for the continuous production of prepregs according to claim 3, characterized in that: mounting bracket (21) are rotated and are installed two first installation pieces (25), the rotation plane and two of first installation piece (25) the plane at the axis place of drive roller (22) is parallel, two drive roller (22) rotate respectively and install two on first installation piece (25), install first arrangement motor (251) on first installation piece (25), mounting bracket (21) are still vertical to be slided and are installed two second installation pieces (26), arbitrary the both ends of compression roller (24) are rotated respectively and are installed two on second installation piece (26), mounting bracket (21) are provided with and are used for fixing first mounting (3) of first installation piece (25), mounting bracket (21) are provided with and are used for fixing second mounting (4) of second installation piece (26).
5. A process for the continuous preparation of prepregs according to claim 4, wherein: the first fixing piece (3) comprises a worm (31) rotatably installed on the installation frame (21), the thread turning directions of two ends of the worm (31) are opposite, worm wheels (32) are coaxially installed on the two first installation blocks (25), the two worm wheels (32) are respectively meshed with two ends of the worm (31), a hand wheel (33) is coaxially arranged at one end of the worm (31), a pointer (34) is arranged on the hand wheel (33), and scales (35) matched with the pointer (34) are coaxially arranged on the installation frame (21) around the axis of the hand wheel (33); second mounting (4) are including installing arbitrary rack (41) on second installation piece (26), rack (41) are vertical, mounting bracket (21) rotate and install drive gear (42), drive gear (42) with rack (41) meshing, drive gear (42) with worm (31) transmission is connected.
6. A process for the continuous production of prepregs according to claim 2, characterized in that: the dipping device (5) comprises a support (51), the support (51) is installed at the discharge end of the rack (11), a hopper (52) is vertically installed on the support (51) in a sliding mode, a heating element is arranged in the hopper (52), the hopper (52) is provided with a positioning element (53) used for fixing the hopper (52) on the support (51), a flat discharge pipe (54) is arranged on the bottom wall of the hopper (52), one end of the discharge pipe (54) is communicated with the inner cavity of the hopper (52), a first horizontal material roller (55) is installed in the discharge pipe (54) in a rotating mode, a recovery box (56) is arranged on the support (51) below the hopper (52), the vertical projection of the discharge pipe (54) is located in the recovery box (56), and a second material roller (561) is installed in the recovery box (56) in a rotating mode, the upper side of the second material roller (561) is higher than the side wall of the recovery box (56), the second material roller (561) is located under the first material roller (55), the recovery box (56) is provided with a recovery pump (562), and the discharge end of the recovery pump (562) is communicated with the inner cavity of the hopper (52) through a pipeline.
7. A process for the continuous preparation of prepregs according to claim 6, wherein: the lower end of the tapping pipe (54) is bent in the direction opposite to the direction of transport of the fibers of the machine frame (11).
8. A process for the continuous preparation of prepregs according to claim 6, wherein: hopper (52) internal rotation is installed and is horizontally sealed roller (6), hopper (52) lateral wall be provided with sealed motor (61) with sealed roller (6) transmission is connected, sealed roller (6) lateral wall circumference interval is provided with a plurality of shrouding (62), closed groove (522) have been seted up to hopper (52) diapire, closed groove (522) with discharging pipe (54) intercommunication, the downside of sealed roller (6) is located in closed groove (522) just shrouding (62) lateral wall with closed groove (522) lateral wall is laminated mutually.
9. A process for the continuous preparation of prepregs according to claim 6, wherein: the bottom walls of the hopper (52) and the recovery tank (56) are funnel-shaped.
10. A process for the continuous production of prepregs according to claim 3, characterized in that: drive roller (22) lateral wall circumference interval is provided with a plurality of locating plates (221), connecting hole (231) lateral wall circumference interval seted up a plurality of with locating plate (221) one-to-one's constant head tank (232), locating plate (221) one-to-one slides and installs in constant head tank (232).
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111253574.6A CN113882089B (en) | 2021-10-27 | 2021-10-27 | Process for preparing prepreg by continuous method |
| PCT/CN2022/124360 WO2023071756A1 (en) | 2021-10-27 | 2022-10-10 | Continuous process for preparing prepreg |
| US18/201,398 US20230295846A1 (en) | 2021-10-27 | 2023-05-24 | Process for preparing prepreg by continuous method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111253574.6A CN113882089B (en) | 2021-10-27 | 2021-10-27 | Process for preparing prepreg by continuous method |
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| CN113882089A true CN113882089A (en) | 2022-01-04 |
| CN113882089B CN113882089B (en) | 2022-11-08 |
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| CN202111253574.6A Active CN113882089B (en) | 2021-10-27 | 2021-10-27 | Process for preparing prepreg by continuous method |
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| US (1) | US20230295846A1 (en) |
| CN (1) | CN113882089B (en) |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023071756A1 (en) * | 2021-10-27 | 2023-05-04 | 浙江毅聚新材料有限公司 | Continuous process for preparing prepreg |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN117822139B (en) * | 2024-03-01 | 2024-07-09 | 常州市盛杰合力化纤有限公司 | Filament winding breakage-proof equipment for polyester production |
| CN118345575B (en) * | 2024-06-18 | 2024-09-03 | 山东大业股份有限公司 | A rubberizing equipment for tire cord processing |
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Also Published As
| Publication number | Publication date |
|---|---|
| US20230295846A1 (en) | 2023-09-21 |
| CN113882089B (en) | 2022-11-08 |
| WO2023071756A1 (en) | 2023-05-04 |
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