CN112497787A - Green regenerated carbon fiber thermoplastic material building board and preparation method thereof - Google Patents
Green regenerated carbon fiber thermoplastic material building board and preparation method thereof Download PDFInfo
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- CN112497787A CN112497787A CN202011275734.2A CN202011275734A CN112497787A CN 112497787 A CN112497787 A CN 112497787A CN 202011275734 A CN202011275734 A CN 202011275734A CN 112497787 A CN112497787 A CN 112497787A
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- carbon fiber
- fiber felt
- roller
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/40—Shaping or impregnating by compression not applied
- B29C70/42—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/54—Component parts, details or accessories; Auxiliary operations, e.g. feeding or storage of prepregs or SMC after impregnation or during ageing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/54—Component parts, details or accessories; Auxiliary operations, e.g. feeding or storage of prepregs or SMC after impregnation or during ageing
- B29C70/546—Measures for feeding or distributing the matrix material in the reinforcing structure
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/62—Plastics recycling; Rubber recycling
Abstract
The invention discloses a green regenerated carbon fiber thermoplastic material building board which comprises a carbon fiber felt and a thermoplastic resin layer, wherein the front surface and the back surface of the carbon fiber felt are respectively provided with a transverse groove, a longitudinal groove and a vertical hole, the vertical surfaces of two sides of the carbon fiber felt in the length direction are respectively provided with a transverse hole parallel to the front surface of the carbon fiber felt, and the thermoplastic resin layer is hot-pressed on the front surface and the back surface of the carbon fiber felt through a hot press. According to the invention, the uniform transverse grooves, longitudinal grooves and vertical holes are formed in the front and back of the carbon fiber felt, so that the effective bonding area of the carbon fiber felt and the thermoplastic resin layer is increased, and the carbon fiber felt and the thermoplastic resin layer form a concave-convex combined structure, thereby improving the bonding strength of the thermoplastic resin layer and the carbon fiber felt; the thermoplastic resin powder in the vertical holes can be melted during hot pressing, so that the thermoplastic resin layers on the front surface and the back surface of the carbon fiber felt and the thermoplastic resin in the vertical holes are integrally hot-pressed and formed.
Description
Technical Field
The invention relates to the technical field of building boards. In particular to a green regenerated carbon fiber thermoplastic material building board and a preparation method thereof.
Background
Traditional building board generally is wooden board or sheet metal, the use of wooden board can consume a large amount of timber, and the life cycle is shorter, the sheet metal quality is great, it is great to transport and the cutting degree of difficulty, for solving the inconvenience that traditional panel used, the technique of utilizing recovery carbon fiber processing manufacturing building board takes place at the same time, possess higher intensity, and the quality is lighter, be convenient for transport and processing, nevertheless retrieve the carbon fiber behind the carbon fiber felt of making, its outward appearance is relatively poor with thermoplastic resin's adhesive force, behind hot briquetting, the adhesive force of resin layer and carbon fiber felt is not enough, resin layer and carbon fiber felt layer peel off easily appear, delaminating etc., influence the use of panel.
Disclosure of Invention
Therefore, the technical problem to be solved by the invention is to provide a green regenerated carbon fiber thermoplastic material building board with high bonding strength and good thermoplastic resin powder diffusion effect and a preparation method thereof.
In order to solve the technical problems, the invention provides the following technical scheme: the green regenerated carbon fiber thermoplastic material building board comprises a carbon fiber felt and a thermoplastic resin layer, wherein the front surface and the back surface of the carbon fiber felt are respectively provided with a transverse groove, a longitudinal groove and a vertical hole, the vertical surfaces of two sides of the carbon fiber felt in the length direction are respectively provided with a transverse hole parallel to the front surface of the carbon fiber felt, and the thermoplastic resin layer is hot-pressed on the front surface and the back surface of the carbon fiber felt through a hot press; and the thermoplastic resin in the vertical hole and the thermoplastic resin layer are integrally hot-pressed and molded.
Above-mentioned green regeneration carbon fiber thermoplastic material building board, horizontal recess and vertical recess are all mutually perpendicular and the degree of depth is the same, perpendicular to carbon fiber felt's front is erected the hole, just erect the hole and be located two horizontal recesses and two vertical recess crossing regional middle parts that form, the bottom and the cross bore intercommunication of erecting the hole.
The preparation method of the green regenerated carbon fiber thermoplastic material building board comprises the following steps:
step A: pressing a transverse groove on the upper surface of the carbon fiber felt by using a transverse grooving device;
and B: pressing a longitudinal groove on the upper surface of the carbon fiber felt by using a longitudinal grooving device;
and C: punching vertical holes on the upper surface of the carbon fiber felt along the direction vertical to the upper surface of the carbon fiber felt by using a punching device, wherein the depth of each vertical hole is smaller than the thickness of the carbon fiber felt;
step D: punching a transverse hole along a vertical face vertical to the thickness of the carbon fiber felt by using a side-punching and material-pouring device, wherein the depth of the transverse hole is smaller than the width of the carbon fiber felt;
step E: spreading thermoplastic resin powder on the upper surface of the carbon fiber felt by using a powder spreader, and exhausting air from the bottom of the carbon fiber felt by using a negative pressure assembly to promote the thermoplastic resin powder to diffuse in the carbon fiber felt;
step F: utilizing a hot press to carry out hot pressing on the carbon fiber felt with the thermoplastic resin powder scattered on the surface;
g, turning the carbon fiber felt with one hot pressed surface for 180 degrees and pressing a transverse groove on the turned upper surface of the carbon fiber felt by using a transverse grooving device;
and H, pressing a longitudinal groove on the upper surface of the carbon fiber felt after the carbon fiber felt is turned by using a longitudinal grooving device:
step I, punching vertical holes on the turned upper surface of the carbon fiber felt along the direction vertical to the upper surface of the carbon fiber felt by using a punching device, wherein the depth of each vertical hole is smaller than the thickness of the carbon fiber felt;
step J: spreading thermoplastic resin powder on the turned upper surface of the carbon fiber felt by using a powder spreader;
and K, utilizing a hot press to carry out hot pressing on the carbon fiber felt with the thermoplastic resin powder scattered on the surface.
According to the preparation method of the green recycled carbon fiber thermoplastic material building board, the transverse grooving device comprises a transverse grooving roller and a first supporting roller, the transverse grooving roller is positioned right above the first supporting roller, the carbon fiber felt is conveyed to a gap between the transverse grooving roller and the first supporting roller by a roller conveying group, a transverse groove is pressed on the upper surface of the carbon fiber felt by the transverse grooving roller, and the transverse grooving roller and the first supporting roller rotate in opposite directions to convey the carbon fiber felt to the longitudinal grooving device; and a plurality of transverse pressing plates are arranged on the surface of the transverse grooving roller along the circumferential direction of the transverse grooving roller, and the long edges of the transverse pressing plates are parallel to the axis of the transverse grooving roller.
According to the preparation method of the green recycled carbon fiber thermoplastic material building board, the longitudinal grooving device comprises a longitudinal grooving roller and a second supporting roller, the longitudinal grooving roller is positioned right above the second supporting roller, a roller conveying group between the transverse grooving device and the longitudinal grooving device is used for conveying the carbon fiber felt to a gap between the longitudinal grooving roller and the second supporting roller, the longitudinal grooving roller is used for pressing a longitudinal groove on the upper surface of the carbon fiber felt, and the longitudinal grooving roller and the second supporting roller rotate reversely to convey the carbon fiber felt to the punching device; and a plurality of pressure rings coaxial with the longitudinal grooving roller are arranged on the surface of the longitudinal grooving roller.
According to the preparation method of the green recycled carbon fiber thermoplastic material building board, the punching device comprises a punching roller and a third supporting roller, the punching roller is located right above the third supporting roller, the carbon fiber felt is conveyed to a gap between the punching roller and the third supporting roller, vertical holes are formed in the surface of the carbon fiber felt by the punching roller, and the punching roller and the third supporting roller rotate in the reverse direction to convey the carbon fiber felt to the side punching and material pouring device; the utility model discloses a punching roller, including perforating roller, cylinder, brush, material filling device, punching roller, the surface of perforating roller is provided with a plurality of cones that punch along its radial, the both ends of perforating roller all are provided with the roll adjustment subassembly, one side of perforating roller is provided with the cylinder, the surface of cylinder is provided with the brush, the cylinder is the same with the rotation direction of perforating roller, the cylinder is located perforating device and side and punches between the material filling device, and the brush of cylinder side is close to the awl of punching of perforating roller.
According to the preparation method of the green regenerated carbon fiber thermoplastic material building board, the side punching and material filling device comprises a side punching mechanism and a material filling mechanism, the side punching mechanism comprises a fixed shell, an electric push rod is arranged on the outer side of the fixed shell, the end part of the push rod of the electric push rod is fixedly connected with a press plate, a material filling pipe is arranged on the side surface of the press plate, the material filling mechanism comprises a pneumatic conveyor and a material conveying pipe, and a discharge port of the pneumatic conveyor is communicated with one end of the material filling pipe through the material conveying pipe; pushing the pressing plate and the material filling pipe to move forward by using an electric push rod, drilling a transverse hole on the vertical surface of the thickness of the carbon fiber felt, conveying thermoplastic resin powder into the material filling pipe by using a pneumatic conveyor through a material conveying pipe, and filling the thermoplastic resin powder into the carbon fiber felt through the material filling pipe; and (4) utilizing a roller conveying group to convey the carbon fiber felt forwards to the position below the powder spreader.
In the method for preparing the green recycled carbon fiber thermoplastic material building board, the negative pressure assembly is arranged below the powder spreader, the carbon fiber felt is conveyed between the powder spreader and the negative pressure assembly by using the roller conveying set, the negative pressure assembly comprises the air-pumping pump set, the air pumping port of the air-pumping pump set is communicated with the air pumping box through a pipeline, the top of the air pumping box is provided with the air hole, the top of the air pumping box is provided with the seepage-promoting and wire-stopping-preventing mechanism, the bottom of the carbon fiber felt is tightly attached to the top of the seepage-promoting and wire-stopping-preventing mechanism, the two sides of the powder spreader are both provided with the support frames, the top of the support frames is provided with the threaded hole, the threaded hole is in threaded connection with the lead screw, the bottom end of the lead screw is provided with the spring telescopic rod, the bottom of the spring telescopic rod is provided with, the bottom of the carbon fiber felt is made to be attached to the top of the seepage-promoting and anti-stop mechanism, the negative pressure assembly is used for sucking the bottom of the carbon fiber felt, thermoplastic resin powder is made to diffuse in the carbon fiber felt, the carbon fiber felt is driven to advance into the hot press under the conveying of the roller conveying set, and the carbon fiber felt is hot pressed, so that the thermoplastic resin powder is melted and combined with the carbon fiber felt.
According to the preparation method of the green regenerated carbon fiber thermoplastic material building board, the seepage-promoting and anti-stop mechanism comprises rubber sealing plates and vent valves, through holes are formed in the inner side walls of the rubber sealing plates, the vent valves are arranged in the through holes, the four rubber sealing plates are four in number, the four rubber sealing plates are sequentially and fixedly connected end to form a rectangle, arc-shaped grooves are formed in the inner side walls of the rubber sealing plates, the tops of the four rubber sealing plates are all bent towards the middle of the formed rectangle, and the thickness of the bottoms of the rubber sealing plates is larger than that of the tops of the four; the breather valve includes the casing, the shape of casing is cylindric, be provided with pull rod and extension spring in the middle of the inside of casing, the second end of pull rod and the first end fixed connection of extension spring, the second end fixedly connected with fixed plate of extension spring, the inboard of fixed plate is provided with the sealing washer, the inside wall of sealing washer and the terminal surface overlap joint of casing, casing one end is provided with preceding baffle, the middle part of preceding baffle sets up the screw hole, the surface of pull rod is provided with external screw thread and pull rod and passes through external screw thread threaded connection at the screw hole, the bleeder vent has been seted up to the lateral wall of preceding baffle, the direction of switching on of breather valve is by the rectangle outside to the inboard one-way conduction of rectangle, switches on to the.
According to the preparation method of the green recycled carbon fiber thermoplastic material building board, the linear speeds of the transverse grooving roller, the longitudinal grooving roller, the first support roller of the perforating roller, the second support roller and the third support roller are the same.
The technical scheme of the invention achieves the following beneficial technical effects:
1. according to the invention, by extruding the uniform transverse grooves, longitudinal grooves and vertical holes on the front surface and the back surface of the carbon fiber felt, thermoplastic resin powder can be spread on the surface of the carbon fiber felt and hot-pressed by the hot press, so that not only is the effective bonding area between the carbon fiber felt and the thermoplastic resin layer increased, but also the carbon fiber felt and the thermoplastic resin layer form a concave-convex combined structure, the bonding strength between the thermoplastic resin layer and the carbon fiber felt is improved, the peeling, layering and the like between the thermoplastic resin and the carbon fiber felt are avoided, and the service life of the manufactured building board is further prolonged; the thermoplastic resin powder in the vertical holes can be melted during hot pressing, and after the resin powder is melted, the thermoplastic resin layers on the front surface and the back surface of the carbon fiber felt and the thermoplastic resin in the vertical holes are integrally hot-pressed and molded.
2. According to the invention, the punching and filling device is arranged to punch transverse holes on two side surfaces of the carbon fiber felt, thermoplastic resin powder is filled into the holes, the thermoplastic resin powder in the carbon fiber felt is melted when hot pressing is carried out, the melted thermoplastic resin is melted and diffused from the inside to the outside of the carbon fiber felt, the combination area of the thermoplastic resin and the carbon fiber felt is increased, so that the strength of the building board is increased, the transverse holes and the vertical holes are communicated in the carbon fiber felt, the plurality of transverse holes and the vertical holes are mutually matched to form a vertically staggered net-shaped pore structure, after the hot pressing is finished and the building board is manufactured, a thermoplastic resin net connected with the thermoplastic resin layers on the upper side and the lower side is formed in the building board, and the strength of the board and the bonding strength of the thermoplastic resin and the.
3. According to the invention, the negative pressure component is arranged, so that negative pressure air extraction can be carried out on the carbon fiber felt with the surface spread with the thermoplastic resin powder, and the thermoplastic resin powder can be promoted to permeate into the carbon fiber felt through the negative pressure air extraction due to more pores in the carbon fiber felt; the thickness of the rubber sealing plate of the seepage-promoting and wire-stopping-preventing mechanism is gradually reduced from bottom to top, and the rubber has certain hardness, so that the bottom of the carbon fiber felt can be supported; the side of rubber seal plate sets up the breather valve, and the breather valve is one-way air guide, can be too little at the rectangle space internal pressure that the rubber seal plate encloses after air bleed pump package, when the interior outer pressure differential is greater than the extension spring pulling force in the breather valve, outside air gets into the cavity of rubber seal plate through the breather valve, avoid because the vacuum is too big in the rectangle space that makes the rubber seal plate enclose of bleeding, the bottom that leads to the carbon fiber felt is too big with the top pressure of rubber seal plate, lead to frictional force too big, make the felt unable forward conveying, lead to the production stagnation.
Drawings
FIG. 1 is a schematic cross-sectional structural view of a carbon fiber thermoplastic building board according to the present invention;
FIG. 2 is a schematic view of a three-dimensional structure of a carbon fiber felt after being pressed into a groove and punched;
FIG. 3 is a schematic structural view of a carbon fiber thermoplastic building board manufacturing device according to the present invention;
FIG. 4 is a schematic top view of the cross-sectional structure of the punching and filling apparatus of the present invention;
FIG. 5 is a schematic cross-sectional view of a transverse grooved roll according to the present invention;
FIG. 6 is a schematic cross-sectional view of a longitudinal grooved roll according to the present invention;
FIG. 7 is a schematic perspective view of a perforating roll of the present invention;
FIG. 8 is a schematic cross-sectional view of the seepage-promoting and wire-stopping preventing mechanism of the present invention;
FIG. 9 is a schematic sectional view of a vent valve according to the present invention.
The reference numbers in the figures denote: 1-carbon fiber felt; 2-longitudinal grooves; 3-transverse grooves; 4-vertical hole; 5-transverse holes; 6-a thermoplastic resin layer; 7-roller conveying group; 100-transverse grooving apparatus; 101-transverse grooved rollers; 102-a first support roller; 103-a transverse platen; 200-longitudinal grooving apparatus; 201-longitudinal grooved rollers; 202-a second support roller; 203-a pressure ring; 300-a perforating device; 301-a perforating roller; 302-a third support roll; 303-a punching cone; 304-a brush; 305-a roller; 400-punching and filling device; 401-pneumatic conveyor; 402-a feed delivery pipe; 403-a filling pipe; 404-a platen; 405-a stationary shell; 406-an electric push rod; 500-powder spreader; 501-a support frame; 502-lead screw; 503-spring telescopic rod; 504-the pinch roller; 600-a hot press; 700-a negative pressure assembly; 701-a gas pump set; 702-a suction box; 703-infiltration-promoting and wire-stopping-preventing mechanism; 704-rubber sealing plates; 705-vent valve; 706-arc groove; 707-a pull rod; 708-a front baffle; 709-fixing plate; 710-a sealing ring; 711-tension spring; 712-a housing.
Detailed Description
Referring to fig. 1-2, the green recycled carbon fiber thermoplastic building board comprises a carbon fiber felt 1 and a thermoplastic resin layer 6, wherein the front and the back of the carbon fiber felt 1 are respectively provided with a transverse groove 3, a longitudinal groove 2 and a vertical hole 4, the vertical surfaces of two sides of the carbon fiber felt 1 in the length direction are respectively provided with a transverse hole 5 parallel to the front of the carbon fiber felt 1, and the front and the back of the carbon fiber felt 1 are respectively hot-pressed with the thermoplastic resin layer 6 through a hot press 600; thermoplastic resin in the vertical hole 4 and the thermoplastic resin layer 6 are integrally hot-pressed and formed, the transverse grooves 3 and the longitudinal grooves 2 are vertical to each other and have the same depth, the vertical hole 4 is vertical to the front surface of the carbon fiber felt 1, the vertical hole 4 is positioned in the middle of an area formed by the two transverse grooves 3 and the two longitudinal grooves 2 in a crossed manner, the bottom end of the vertical hole 4 is communicated with the transverse hole 5, thermoplastic resin powder can be spread on the surface of the carbon fiber felt 1 and is hot-pressed by a hot press 600 through the transverse grooves 3, the longitudinal grooves 2 and the vertical holes 4 which are uniformly pressed on the front surface and the back surface of the carbon fiber felt 1, the effective bonding area of the carbon fiber felt 1 and the thermoplastic resin layer 6 is increased, the carbon fiber felt 1 and the thermoplastic resin layer 6 form a concave-convex combined structure, and the bonding strength of the thermoplastic resin layer 6 and the, the peeling, layering and the like of the thermoplastic resin and the carbon fiber felt 1 are avoided, and the service life of the manufactured building board is further prolonged; the thermoplastic resin powder in the vertical holes 4 can be melted in the hot pressing process, and after the resin powder is melted, the thermoplastic resin layers 6 on the front surface and the back surface of the carbon fiber felt 1 and the thermoplastic resin in the vertical holes are integrally hot-pressed and formed.
The preparation method of the green regenerated carbon fiber thermoplastic material building board comprises the following steps:
step A: pressing a transverse groove 3 on the upper surface of the carbon fiber felt 1 by using a transverse grooving device 100;
and B: pressing a longitudinal groove 2 on the upper surface of the carbon fiber felt 1 by using a longitudinal grooving device 200;
and C: punching vertical holes 4 on the upper surface of the carbon fiber felt 1 along the direction vertical to the upper surface of the carbon fiber felt 1 by using a punching device 300, wherein the depth of each vertical hole 4 is smaller than the thickness of the carbon fiber felt 1;
step D: punching a transverse hole 5 along a vertical face perpendicular to the thickness of the carbon fiber felt 1 by using the side-punching and material-pouring device 400, wherein the depth of the transverse hole 5 is smaller than the width of the carbon fiber felt 1;
step E: thermoplastic resin powder is scattered on the upper surface of the carbon fiber felt 1 by using the powder scattering machine 500, and meanwhile, the bottom of the carbon fiber felt 1 is pumped by using the negative pressure assembly 700, so that the thermoplastic resin powder is promoted to be diffused in the carbon fiber felt 1;
step F: utilizing a hot press 600 to carry out hot pressing on the carbon fiber felt 1 with the thermoplastic resin powder scattered on the surface;
g, turning the carbon fiber felt 1 with one hot pressed surface for 180 degrees, and pressing a transverse groove 3 on the turned upper surface of the carbon fiber felt 1 by using a transverse grooving device 100;
and step H, pressing a longitudinal groove 2 on the upper surface of the carbon fiber felt 1 after overturning by using a longitudinal grooving device 200:
step I, punching vertical holes 4 on the upper surface of the carbon fiber felt 1 after the carbon fiber felt is turned over by using a punching device 300 along the direction vertical to the upper surface of the carbon fiber felt 1, wherein the depth of each vertical hole 4 is smaller than the thickness of the carbon fiber felt 1;
step J: spreading thermoplastic resin powder on the turned upper surface of the carbon fiber felt 1 by using a powder spreader 500;
k, utilizing a hot press 600 to carry out hot pressing on the carbon fiber felt 1 with the thermoplastic resin powder scattered on the surface
As shown in fig. 3-7, the transverse grooving apparatus 100 comprises a transverse grooving roller 101 and a first support roller 102, the transverse grooving roller 101 is located right above the first support roller 102, the carbon fiber mat 1 is conveyed to a gap between the transverse grooving roller 101 and the first support roller 102 by a roller conveying set 7, a transverse groove 3 is pressed on the upper surface of the carbon fiber mat 1 by the transverse grooving roller 101, and the transverse grooving roller 101 and the first support roller 102 rotate in opposite directions to convey the carbon fiber mat 1 to the longitudinal grooving apparatus 200; a plurality of transverse pressing plates 103 are arranged on the surface of the transverse grooving roller 101 along the circumferential direction of the transverse grooving roller, and the long sides of the transverse pressing plates 103 are parallel to the axis of the transverse grooving roller 101; the longitudinal grooving device 200 comprises a longitudinal grooving roller 201 and a second supporting roller 202, the longitudinal grooving roller 201 is positioned right above the second supporting roller 202, the carbon fiber felt 1 is conveyed to a gap between the longitudinal grooving roller 201 and the second supporting roller 202 by using a roller conveying group 7 between the transverse grooving device 100 and the longitudinal grooving device 200, longitudinal grooves 2 are pressed on the upper surface of the carbon fiber felt 1 by using the longitudinal grooving roller 201, and the longitudinal grooving roller 201 and the second supporting roller 202 rotate in opposite directions to convey the carbon fiber felt 1 to the punching device 300; the surface of the longitudinal grooving roller 201 is provided with a plurality of pressure rings 203 which are coaxial with the longitudinal grooving roller 201; the punching device 300 comprises a punching roller 301 and a third supporting roller 302, the punching roller 301 is positioned right above the third supporting roller 302, the carbon fiber felt 1 is conveyed to a gap between the punching roller 301 and the third supporting roller 302, a vertical hole 4 is pressed on the surface of the carbon fiber felt 1 by using the punching roller 301, and the punching roller 301 and the third supporting roller 302 rotate in opposite directions to convey the carbon fiber felt 1 to the side punching and material pouring device 400; the surface of the punching roller 301 is provided with a plurality of punching cones 303 along the radial direction, both ends of the punching roller 301 are provided with distance adjusting components, one side of the punching roller 301 is provided with a roller 305, the surface of the roller 305 is provided with a brush 304, and the rotation directions of the roller 305 and the punching roller 301 are the same; the side punching and material filling device 400 comprises a side punching mechanism and a material filling mechanism, the side punching mechanism comprises a fixed shell 405, an electric push rod 406 is arranged on the outer side of the fixed shell 405, a pressing plate 404 is fixedly connected to the end part of a push rod of the electric push rod 406, a material filling pipe 403 is arranged on the side surface of the pressing plate 404, the material filling mechanism comprises an air conveyor 401 and a material conveying pipe 402, a discharge port of the air conveyor 401 is communicated with one end of the material filling pipe 403 through the material conveying pipe 402, transverse holes 5 are punched on two side surfaces of a carbon fiber felt 1 through the punching and material filling device 400, thermoplastic resin powder is filled in the holes, when the carbon fiber felt is subjected to hot pressing, the thermoplastic resin powder in the carbon fiber felt 1 is melted and diffused from the inside of the carbon fiber felt 1 to the outside, the combination area of the thermoplastic resin and the carbon fiber felt 1 is increased, the transverse holes 5 and the vertical holes 4 are communicated in the carbon fiber felt 1, the plurality of transverse holes 5 and the plurality of vertical holes 4 are matched with each other to form a vertically staggered reticular pore structure, and after hot pressing is completed and a building board is manufactured, a thermoplastic resin net connected with thermoplastic resin layers 6 on the upper side and the lower side is formed in the building board, so that the strength of the board and the bonding strength of the thermoplastic resin and the carbon fiber felt 1 are further improved; pushing the pressing plate 404 and the filling pipe 403 to advance by using an electric push rod 406, drilling a transverse hole 5 on the vertical surface of the thickness of the carbon fiber felt 1, conveying thermoplastic resin powder into the filling pipe 403 by using a pneumatic conveyor 401 through a conveying pipe 402, and filling the thermoplastic resin powder into the carbon fiber felt 1 through the filling pipe 403; the carbon fiber felt 1 is conveyed forwards to the lower part of the powder spreader 500 by a roller conveying group 7; the carbon fiber felt cleaning machine is characterized in that a negative pressure component 700 is arranged below the powder spreader 500, the carbon fiber felt 1 is conveyed to a position between the powder spreader 500 and the negative pressure component 700 by a roller conveying set 7, the negative pressure component 700 comprises a suction pump set 701, a suction opening of the suction pump set 701 is communicated with a suction box 702 through a pipeline, the top of the suction box 702 is provided with an air hole, the top of the suction box 702 is provided with a seepage-promoting and wire-stopping-preventing mechanism 703, the bottom of the carbon fiber felt 1 is tightly attached to the top of the seepage-promoting and wire-stopping-preventing mechanism 703, two sides of the powder spreader 500 are respectively provided with a support frame 501, the top of the support frame 501 is provided with a threaded hole, the threaded hole is connected with a lead screw 502 in a threaded manner, the bottom end of the lead screw 502 is provided with a spring telescopic rod 503, the bottom of the, the method comprises the steps of applying pressure to the top of a carbon fiber felt 1 by using a pressing wheel 504, enabling the bottom of the carbon fiber felt 1 to be attached to the top of a permeation-promoting and wire-stopping-preventing mechanism 703 tightly, sucking the bottom of the carbon fiber felt 1 by using a negative pressure component 700, promoting thermoplastic resin powder to diffuse in the carbon fiber felt 1, driving the carbon fiber felt 1 to advance into a hot press 600 under the conveying of a roller conveying group 7, carrying out hot pressing on the carbon fiber felt 1, enabling the thermoplastic resin powder to be melted and combined with the carbon fiber felt 1, enabling the linear speeds of a transverse grooving roller 101, a longitudinal grooving roller 201, a first supporting roller 102 of a perforating roller 301, a second supporting roller 202 and a third supporting roller 302 to be the same, enabling a roller 305 to be located between a perforating device 300 and a side perforating and filling device 400, and enabling a hairbrush 304 on the side of the.
As shown in fig. 8, the permeation-promoting and anti-stopping mechanism 703 includes a rubber sealing plate 704 and a vent valve 705, a through hole is formed in the inner side wall of the rubber sealing plate 704, the vent valve 705 is disposed in the through hole, the vent valve 705 is disposed on the side surface of the rubber sealing plate 704, and the vent valve 705 is a one-way air guide, so that when the pressure inside and outside a rectangular space enclosed by the rubber sealing plate 704 is too small after air is pumped by the air-suction pump set 701, and the pressure difference between the inside and outside is greater than the tension of a tension spring in the vent valve 705, the external air enters the cavity of the rubber sealing plate 704 through the vent valve 705, thereby avoiding that the bottom of the carbon fiber felt 1 and the top of the rubber sealing plate 704 are too large due to too large vacuum in the rectangular space enclosed by the rubber sealing plate 704 caused by air-suction, resulting in too large friction force, and causing the, a pull rod 707 and a tension spring 711 are arranged in the middle of the inside of the casing 712, a second end of the pull rod 707 is fixedly connected with a first end of the tension spring 711, a fixing plate 709 is fixedly connected with a second end of the tension spring 711, a sealing ring 710 is arranged on the inner side of the fixing plate 709, the inner side wall of the sealing ring 710 is lapped with the end surface of the casing 712, a front baffle 708 is arranged at one end of the casing 712, a threaded hole is arranged in the middle of the front baffle 708, external threads are arranged on the surface of the pull rod 707, the pull rod 707 is connected with the threaded hole through the external threads, air holes are formed in the side wall of the front baffle 708, the conduction direction of the vent valve 705 is conducted from the outside of the rectangle to the inside of the rectangle in a one-way manner, namely, the conduction is conducted from the direction of the front, the inner side wall of the rubber sealing plate 704 is provided with arc-shaped grooves 706, the tops of the four rubber sealing plates 704 are all bent towards the middle of the formed rectangle, the bottom thickness of the rubber sealing plate 704 is larger than the top thickness, negative pressure air suction can be carried out on the carbon fiber felt 1 with thermoplastic resin powder spread on the surface by arranging the negative pressure component 700, the thermoplastic resin powder can be promoted to permeate into the carbon fiber felt 1 due to the fact that the carbon fiber felt 1 has more holes and the carbon fiber felt 1 is subjected to negative pressure air suction, the permeation-promoting and wire-stopping-preventing mechanism 703 is arranged, the thickness of the rubber sealing plate 704 of the permeation-promoting and wire-stopping-preventing mechanism 703 is gradually reduced from bottom to top, the bottom of the carbon fiber felt 1 can be supported due to the fact that rubber has certain hardness, the top thickness of the rubber sealing plate 704 is thin, the flexibility of the rubber sealing plate is good, further, the air extraction effect of the carbon fiber felt 1 is improved, and the diffusion effect of the thermoplastic resin powder in the carbon fiber felt 1 is improved.
The working process is as follows: when the building board is prepared, firstly, the carbon fiber felt 1 is sent to the transverse grooving device 100, the transverse grooving device 100 presses a transverse groove 3 on the surface of the carbon fiber felt 1, the carbon fiber felt 1 moves forwards along with the reverse rotation of the transverse grooving roller 101 and the first supporting roller 102 and enters the longitudinal grooving device 200, the longitudinal grooving device 200 presses a longitudinal groove 2 on the surface of the longitudinal grooving device, the longitudinal grooving roller 201 and the second supporting roller 202 rotate reversely to convey the carbon fiber felt 1 to the punching device 300, the punching roller 301 uniformly presses a vertical hole 4 on the surface of the carbon fiber felt 1, meanwhile, the roller 305 and the punching roller 301 rotate in the same direction, the surface of the punching roller 301 can be continuously swept by the brush 304, the carbon fiber felt is prevented from being hooked by a punching cone 303 on the surface of the punching roller 301 during rotation, and the distance between the punching roller 301 and the third supporting roller 302 can be adjusted by the distance adjusting assembly, so as to adjust the punching depth, when the carbon fiber felt 1 is conveyed forwards continuously, the punching mechanism of the punching and filling device 400 pushes a plurality of filling pipes 403 to advance through the electric push rod 406, so that the filling pipes 403 are inserted into the thickness side elevation of the carbon fiber felt 1 to punch the side faces of the carbon fiber felt, after the filling pipes 403 are inserted into the carbon fiber felt 1, the filling mechanism of the punching and filling device 400 is started, thermoplastic resin powder is filled into the carbon fiber felt 1 through the pneumatic conveyor 401, simultaneously the electric push rod 406 contracts to drive the filling pipes 403 to withdraw, simultaneously the filling mechanism stops working, the carbon fiber felt 1 continues to advance, when the carbon fiber felt 1 passes through the powder spreader 500, the powder spreader 500 uniformly spreads the thermoplastic resin powder on the upper surface of the carbon fiber felt 1, meanwhile, the spring telescopic rod 503 pushes the pressing wheel 504 at the bottom to apply a certain pressure to the carbon fiber felt 1, so that the bottom of the carbon fiber felt 1 is tightly attached to the permeation-promoting and line-stopping prevention mechanism 703 of, the air-suction pump set 701 works to pump air in the carbon fiber felt 1 downwards to promote the resin powder to diffuse in the carbon fiber felt 1, so that when the pressure in a rectangular space surrounded by the rubber sealing plate 704 is too small after the air-suction pump set 701 pumps air, when the difference between the internal pressure and the external pressure is greater than the tension of the tension spring in the vent valve 705, the external air pushes the fixing plate 709 to enter the rectangular space enclosed by the rubber sealing plate 704, so as to avoid that the pressure between the bottom of the carbon fiber felt 1 and the top of the rubber sealing plate 704 is too high due to the overlarge vacuum degree in the rectangular space enclosed by the rubber sealing plate 704 caused by air suction, so that the friction force is too large, the felt cannot be conveyed forward, and the production is stopped, then the carbon fiber felt 1 enters a hot press 600, the hot press 600 carries out hot pressing on the carbon fiber felt 1 doped with thermoplastic resin powder, the thermoplastic resin powder is melted and is fused into the carbon fiber felt 1, and single-side hot pressing is completed;
and then taking out the carbon fiber felt 1 subjected to single-side hot pressing, turning the carbon fiber felt for 180 degrees, putting the carbon fiber felt into the transverse grooving device 100, the longitudinal grooving device 200 and the punching device 300 again, extruding a transverse groove 3, a groove and numerical control on the turned plane, then continuing to advance the carbon fiber felt 1, enabling the punching and filling device 400 and the negative pressure assembly 700 to be out of operation, when the carbon fiber felt 1 passes through the powder spreader 500, spreading thermoplastic resin powder on the turned plane by the powder spreader 500, then entering the hot press 600, carrying out hot pressing again, and finishing double-side hot pressing to obtain the building board.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications are possible which remain within the scope of the appended claims.
Claims (10)
1. The green recycled carbon fiber thermoplastic material building board comprises a carbon fiber felt (1) and a thermoplastic resin layer (6), and is characterized in that the front and the back of the carbon fiber felt (1) are respectively provided with a transverse groove (3), a longitudinal groove (2) and a vertical hole (4), the vertical faces of two sides of the length direction of the carbon fiber felt (1) are respectively provided with a transverse hole (5) parallel to the front of the carbon fiber felt (1), and the thermoplastic resin layer (6) is hot-pressed on the front and the back of the carbon fiber felt (1) through a hot press (600); and the thermoplastic resin in the vertical hole (4) and the thermoplastic resin layer (6) are integrally hot-pressed and molded.
2. The green recycled carbon fiber thermoplastic material building board as claimed in claim 1, wherein the transverse grooves (3) and the longitudinal grooves (2) are perpendicular to each other and have the same depth, the vertical hole (4) is perpendicular to the front surface of the carbon fiber felt (1), the vertical hole (4) is positioned in the middle of the area formed by the intersection of the two transverse grooves (3) and the two longitudinal grooves (2), and the bottom end of the vertical hole (4) is communicated with the transverse hole (5).
3. The preparation method of the green regenerated carbon fiber thermoplastic material building board is characterized by comprising the following steps of:
step A: pressing a transverse groove (3) on the upper surface of the carbon fiber felt (1) by using a transverse grooving device (100);
and B: pressing a longitudinal groove (2) on the upper surface of the carbon fiber felt (1) by using a longitudinal grooving device (200);
and C: punching vertical holes (4) on the upper surface of the carbon fiber felt (1) along the direction vertical to the upper surface of the carbon fiber felt (1) by using a punching device (300), wherein the depth of each vertical hole (4) is smaller than the thickness of the carbon fiber felt (1);
step D: punching a transverse hole (5) along a vertical face perpendicular to the thickness of the carbon fiber felt (1) by using a side-punching and material-pouring device (400), wherein the depth of the transverse hole (5) is smaller than the width of the carbon fiber felt (1);
step E: thermoplastic resin powder is scattered on the upper surface of the carbon fiber felt (1) by using a powder scattering machine (500), and meanwhile, the bottom of the carbon fiber felt (1) is pumped by using a negative pressure assembly (700), so that the thermoplastic resin powder is promoted to be diffused in the carbon fiber felt (1);
step F: utilizing a hot press (600) to carry out hot pressing on the carbon fiber felt (1) with the surface scattered with the thermoplastic resin powder;
g, turning the carbon fiber felt (1) with one hot pressed surface for 180 degrees, and pressing a transverse groove (3) on the turned upper surface of the carbon fiber felt (1) by using a transverse grooving device (100);
and H, pressing a longitudinal groove (2) on the turned upper surface of the carbon fiber felt (1) by using a longitudinal grooving device (200):
step I, punching vertical holes (4) on the turned upper surface of the carbon fiber felt (1) along a direction vertical to the upper surface of the carbon fiber felt (1) by using a punching device (300), wherein the depth of each vertical hole (4) is smaller than the thickness of the carbon fiber felt (1);
step J: spreading thermoplastic resin powder on the turned upper surface of the carbon fiber felt (1) by using a powder spreader (500);
and K, utilizing a hot press (600) to carry out hot pressing on the carbon fiber felt (1) with the surface scattered with the thermoplastic resin powder.
4. The green recycled carbon fiber thermoplastic building board preparation method according to claim 3, wherein the transverse grooving device (100) comprises a transverse grooving roller (101) and a first supporting roller (102), the transverse grooving roller (101) is positioned right above the first supporting roller (102), the carbon fiber felt (1) is conveyed to a gap between the transverse grooving roller (101) and the first supporting roller (102) by a roller conveying group (7), a transverse groove (3) is pressed on the upper surface of the carbon fiber felt (1) by the transverse grooving roller (101), and the transverse grooving roller (101) and the first supporting roller (102) rotate in opposite directions to convey the carbon fiber felt (1) to the longitudinal grooving device (200); the surface of the transverse grooving roller (101) is provided with a plurality of transverse pressing plates (103) along the circumferential direction of the transverse grooving roller, and the long sides of the transverse pressing plates (103) are parallel to the axis of the transverse grooving roller (101).
5. The green recycled carbon fiber thermoplastic material building board preparation method according to claim 4, wherein the longitudinal grooving device (200) comprises a longitudinal grooving roller (201) and a second supporting roller (202), the longitudinal grooving roller (201) is positioned right above the second supporting roller (202), the carbon fiber felt (1) is conveyed to a gap between the longitudinal grooving roller (201) and the second supporting roller (202) by a roller conveying group (7) between the transverse grooving device (100) and the longitudinal grooving device (200), a longitudinal groove (2) is pressed on the upper surface of the carbon fiber felt (1) by the longitudinal grooving roller (201), and the longitudinal grooving roller (201) and the second supporting roller (202) rotate in opposite directions to convey the carbon fiber felt (1) to the punching device (300); and a plurality of compression rings (203) which are coaxial with the longitudinal grooving roller (201) are arranged on the surface of the longitudinal grooving roller (201).
6. The method for preparing the green recycled carbon fiber thermoplastic material building board as claimed in claim 5, wherein the punching device (300) comprises a punching roller (301) and a third supporting roller (302), the punching roller (301) is positioned right above the third supporting roller (302), the carbon fiber felt (1) is conveyed to a gap between the punching roller (301) and the third supporting roller (302), vertical holes (4) are pressed on the surface of the carbon fiber felt (1) by the punching roller (301), and the punching roller (301) and the third supporting roller (302) rotate in opposite directions to convey the carbon fiber felt (1) to the side punching and pouring device (400); the surface of perforating roller (301) is provided with a plurality of awl (303) of punching along its radial, the both ends of perforating roller (301) all are provided with the roll adjustment subassembly, one side of perforating roller (301) is provided with cylinder (305), the surface of cylinder (305) is provided with brush (304), cylinder (305) are the same with the direction of rotation of perforating roller (301), cylinder (305) are located perforating device (300) and side and punch and irritate between material device (400), and brush (304) of cylinder (305) side are close to awl (303) of punching of perforating roller (301).
7. The method for preparing green recycled carbon fiber thermoplastic building boards as claimed in claim 6, wherein the side-punching and material-pouring device (400) comprises a side-punching mechanism and a material-pouring mechanism, the side-punching mechanism comprises a fixed shell (405), an electric push rod (406) is arranged on the outer side of the fixed shell (405), a pressing plate (404) is fixedly connected to the end of the push rod of the electric push rod (406), a material-pouring pipe (403) is arranged on the side surface of the pressing plate (404), the material-pouring mechanism comprises a pneumatic conveyor (401) and a material-conveying pipe (402), and the discharge port of the pneumatic conveyor (401) is communicated with one end of the material-pouring pipe (403) through the material-conveying pipe (402); pushing a pressing plate (404) and a filling pipe (403) to advance by using an electric push rod (406), drilling a transverse hole (5) in the thickness vertical surface of the carbon fiber felt (1), conveying thermoplastic resin powder into the filling pipe (403) by a pneumatic conveyor (401) through a conveying pipe (402), and filling the thermoplastic resin powder into the carbon fiber felt (1) through the filling pipe (403); the carbon fiber felt (1) is conveyed forwards to the lower part of the powder spreader (500) by a roller conveying group (7).
8. The method for preparing the green recycled carbon fiber thermoplastic material building board as claimed in claim 7, wherein a negative pressure assembly (700) is arranged below the powder spreader (500), the carbon fiber mat (1) is conveyed between the powder spreader (500) and the negative pressure assembly (700) by a roller conveying set (7), the negative pressure assembly (700) comprises a gas-pumping pump set (701), a pumping port of the gas-pumping pump set (701) is communicated with a pumping box (702) through a pipeline, the top of the pumping box (702) is provided with a gas hole, the top of the pumping box (702) is provided with a seepage-promoting and wire-stopping preventing mechanism (703), the bottom of the carbon fiber mat (1) is tightly attached to the top of the seepage-promoting and wire-stopping preventing mechanism (703), two sides of the powder spreader (500) are provided with support frames (501), and the top of the support frames (501) is provided with threaded holes, threaded hole female connection has lead screw (502), the bottom of lead screw (502) is provided with spring telescopic link (503), the bottom of spring telescopic link (503) is provided with pinch roller (504), utilize duster (500) to evenly broadcast thermoplastic resin powder to the top of carbon fiber felt (1), utilize pinch roller (504) to exert pressure to the top of carbon fiber felt (1), make the bottom of carbon fiber felt (1) paste closely promote to ooze the top of preventing stopping line mechanism (703), and utilize negative pressure subassembly (700) to the bottom suction of carbon fiber felt (1), make thermoplastic resin powder diffuse in carbon fiber felt (1), under the transport of roller transport group (7), drive carbon fiber felt (1) and advance to in hot press (600), and carry out the hot pressing to carbon fiber felt (1), make thermoplastic resin powder melt and combine with carbon fiber felt (1).
9. The method for preparing the green recycled carbon fiber thermoplastic material building board as claimed in claim 8, wherein the permeation-promoting and stopping-line-preventing mechanism (703) comprises four rubber sealing plates (704) and vent valves (705), through holes are formed in the inner side walls of the rubber sealing plates (704), the vent valves (705) are arranged in the through holes, the four rubber sealing plates (704) are sequentially and fixedly connected end to form a rectangle, arc-shaped grooves (706) are formed in the inner side walls of the rubber sealing plates (704), the tops of the four rubber sealing plates (704) are all bent towards the middle of the rectangle, and the thickness of the bottoms of the rubber sealing plates (704) is greater than that of the tops; the vent valve (705) comprises a shell (712), the shell (712) is cylindrical, a pull rod (707) and a tension spring (711) are arranged in the middle of the inside of the shell (712), the second end of the pull rod (707) is fixedly connected with the first end of the tension spring (711), the second end of the tension spring (711) is fixedly connected with a fixing plate (709), a sealing ring (710) is arranged on the inner side of the fixing plate (709), the inner side wall of the sealing ring (710) is in lap joint with the end face of the shell (712), a front baffle (708) is arranged at one end of the shell (712), a threaded hole is formed in the middle of the front baffle (708), external threads are arranged on the surface of the pull rod (707), the pull rod (707) is in threaded connection with the threaded hole through the external threads, air holes are formed in the side wall of the front baffle (708), and the vent valve (705) is in one-way, namely, the conduction is from the front baffle plate (708) direction to the fixing plate (709) direction.
10. The method for preparing green recycled carbon fiber thermoplastic building board as claimed in claim 6, wherein the linear speeds of the transverse grooving roller (101), the longitudinal grooving roller (201), the punching roller (301), the first supporting roller (102), the second supporting roller (202) and the third supporting roller (302) are the same.
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| US20050212166A1 (en) * | 2002-04-11 | 2005-09-29 | Duck-Hyun Seo | Apparatus for processing fiber-reinforced composites using fiber mat and its manufacture |
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