CN114683585B - Composite material pultrusion profile surface anti-aging treatment process - Google Patents
Composite material pultrusion profile surface anti-aging treatment process Download PDFInfo
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- CN114683585B CN114683585B CN202210615100.XA CN202210615100A CN114683585B CN 114683585 B CN114683585 B CN 114683585B CN 202210615100 A CN202210615100 A CN 202210615100A CN 114683585 B CN114683585 B CN 114683585B
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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
- B29C70/50—Shaping or impregnating by compression not applied for producing articles of indefinite length, e.g. prepregs, sheet moulding compounds [SMC] or cross moulding compounds [XMC]
- B29C70/52—Pultrusion, i.e. forming and compressing by continuously pulling through a die
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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
- B29C70/50—Shaping or impregnating by compression not applied for producing articles of indefinite length, e.g. prepregs, sheet moulding compounds [SMC] or cross moulding compounds [XMC]
- B29C70/52—Pultrusion, i.e. forming and compressing by continuously pulling through a die
- B29C70/525—Component parts, details or accessories; Auxiliary operations
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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
- B29C70/50—Shaping or impregnating by compression not applied for producing articles of indefinite length, e.g. prepregs, sheet moulding compounds [SMC] or cross moulding compounds [XMC]
- B29C70/52—Pultrusion, i.e. forming and compressing by continuously pulling through a die
- B29C70/525—Component parts, details or accessories; Auxiliary operations
- B29C70/528—Heating or cooling
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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
- B29C71/00—After-treatment of articles without altering their shape; Apparatus therefor
- B29C71/0009—After-treatment of articles without altering their shape; Apparatus therefor using liquids, e.g. solvents, swelling agents
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Abstract
The invention discloses a surface anti-aging treatment process for a composite material pultrusion section, which comprises the following specific steps of: mixing, pressing and pulling for molding; and in the process of stretching the material body, the material body is extruded to pass through the distributed extrusion type cavities, and a layer of anti-aging material is sprayed on the surface layer of the stretched material body every time the material body passes through one extrusion type cavity, and the steps are repeated, so that multiple layers of anti-aging layers are processed on the molded material body from inside to outside. The anti-aging composite material forming device has the beneficial effects that the composite material sequentially passes through the extrusion type cavities with gradually increased sizes in a pull-down mode, and after passing through one extrusion type cavity, one layer of anti-aging material is sprayed, then one layer of composite material is sprayed, then the next extrusion type cavity with the increased size is passed, and after sequentially passing through the extrusion type cavities at all positions in this way, a plurality of anti-aging layers are processed from inside to outside by the forming body, so that the anti-aging effect of the formed composite material is ensured.
Description
Technical Field
The invention relates to the technical field of anti-aging treatment of composite extruded materials, in particular to a surface anti-aging treatment process of a composite pultruded profile.
Background
The composite material is a material processed by mixing a plurality of materials according to a certain proportion, and the common composite material mainly comprises a composite rubber material. Generally, the processing and forming method of the composite material mainly comprises extrusion forming, and after the processing is finished, anti-aging treatment needs to be carried out on the surface of the composite material. In general anti-aging treatment, the anti-aging material is only sprayed on the surface layer of the composite material, so that once the anti-aging material layer is broken or the anti-aging performance is reduced, the inner layer material cannot be anti-aged completely, and the service life of the whole material is greatly reduced.
Disclosure of Invention
The invention aims to provide a surface anti-aging treatment process for a composite material pultrusion profile, which aims to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: the surface anti-aging treatment process of the composite material pultrusion profile comprises the following specific steps:
s1, mixing materials, namely firstly, preparing original materials to be used by a composite material according to a corresponding proportion, then crushing each original material, and melting the crushed materials; stirring at constant speed in the melting process; meanwhile, in the stirring process, the liquefied anti-aging material is poured into the stirring material, so that the anti-aging material is primarily mixed in the melting material;
s2, pressing materials, namely injecting the melt materials of the primarily mixed anti-aging materials into a stretching forming device, and then pressurizing the injected melt materials to extrude the melt materials from the bottom of the stretching forming device; in the extrusion process, the uniform extrusion is kept;
s3, drawing and molding, namely drawing the extruded melt downwards when the melt is extruded and discharged from the bottom of the drawing and molding equipment, and primarily curing the extruded material before drawing to ensure that the material has certain hardness and is convenient to draw; meanwhile, the stretch forming equipment is provided with a plurality of extrusion cavity bodies, and the sizes of the inner cavities of the distributed extrusion cavity bodies are increased one by one; in the process of stretching the material body, the material body is extruded to pass through the distributed extrusion type cavities, each time the material body passes through one extrusion type cavity, a layer of anti-aging material is sprayed on the surface layer of the stretched material body, then a layer of prepared melt of the material body is covered, then the material body is cooled and solidified, then the material body is extruded to pass through the extrusion type cavity which is slightly larger than the next cavity, then a layer of anti-aging material is sprayed, and the steps are repeated, so that multiple layers of anti-aging layers are processed from inside to outside of the formed material body.
Preferably, the stretch-forming apparatus includes: the device comprises a melting material cylinder, a transition pipe, an electric guide rail, a driving motor, a laser induction switch, a limit stop block, a long connecting rod, a spiral inserted rod, a melting material box, a melting material conveying pump, an anti-aging coating storage box, an enlarging and forming mechanism, a cooling mechanism and a spraying mechanism; a charging valve is arranged on the melting barrel; the transition pipe is vertically and fixedly connected to the melting barrel; the extrusion cavity is fixedly connected to the transition pipe; the cooling mechanism is arranged at the transition pipe; the electric guide rails are vertically arranged at the melting barrel in a left-right paired mode; the driving motor is connected between the electric guide rails in a sliding manner; the laser inductive switch is arranged on the transition pipe; the laser inductive switch is electrically connected with the uplink control circuit of the electric guide rail and the driving motor; the limit switch is mounted to the driving motor; the limit switch is electrically connected with the downlink control circuit of the electric guide rail and the driving motor; the limit stop block is fixedly arranged on the outer wall of the electric guide rail; the long connecting rod is vertically and fixedly connected to the main shaft end of the driving motor; the spiral inserted bar is fixedly connected to the upper end of the long connecting bar; the spraying mechanism is arranged at the bottom of the extrusion cavity and is in matched connection with the anti-aging paint storage box, and the spraying mechanism is used for spraying anti-aging materials on the materials passing through the extrusion cavity; the enlarging and forming mechanism is formed by combining another group of transition pipes, a cooling mechanism and a spraying mechanism, and the bottom of the transition pipe in the enlarging and forming mechanism is connected with an extruding cavity with enlarged size; a melting material conveying pump is fixed on the outer wall of the upper end of the transition pipe in the enlarging and forming mechanism; the inner wall of the upper end of a transition pipe in the enlarging and forming mechanism is equidistantly provided with first spray holes; the feed end of the melting material conveying pump is connected with the melting box in a matched mode, and the discharge end of the melting material conveying pump is communicated with all the first spray holes.
Preferably, the cooling mechanism includes: the air conditioner comprises an air inlet pipe, an air outlet pipe, a small air pump, an air nozzle, a linkage fan, a first steering bevel gear, a second steering bevel gear, a connecting bracket and an air exhaust fan; the air conditioners are arranged around the transition pipe at equal intervals; the air inlet pipe is fixedly connected to the transition pipe at equal intervals; meanwhile, the air inlet pipe is communicated with a cold air discharge end of the air conditioner; the air outlet pipe is fixedly connected to the transition pipe at equal intervals; the small air pump is fixedly connected to the air outlet pipe; the air nozzle is arranged at the air outlet end of the small air pump; the linkage fan is rotationally connected to the upper side of the outer end head of the air inlet pipe; the first steering bevel gear is coaxially connected to the lower side of the linkage fan; the connecting bracket is fixedly connected to the inner side of the air inlet pipe; the second steering bevel gear is rotationally connected to the connecting bracket, and the second steering bevel gear is meshed with the first steering bevel gear; the air exhaust fan is coaxially connected to the second steering helical gear.
Preferably, the second steering helical gear is a hollow annular body.
Preferably, the top of the melting barrel is vertically and fixedly connected with a hydraulic telescopic rod, the lower end of the hydraulic telescopic rod is horizontally and fixedly connected with a pressing plate, and the pressing plate is matched with the inner side of the melting barrel in a sliding mode.
Preferably, the spray mechanism comprises: the coating material conveying pump, the annular pipe and the second spray hole; the coating conveying pump is arranged on the lower side of the extrusion type cavity and is connected with the anti-aging coating storage box in a matching manner; the annular pipe is horizontally arranged right below the extrusion type cavity and is communicated with the output end of the coating material conveying pump; the second spray holes are arranged on the inner wall of the annular pipe in a surrounding and equidistant mode.
Preferably, a brightness induction switch is fixedly arranged at the transition pipe in each annular pipe and the enlarging and forming mechanism; the brightness induction switch is electrically connected with the coating conveying pump or the melting material conveying pump at the position; small laser lamps are arranged on the side wall, close to the upper end, of the long connecting rod in an encircling and equidistant mode.
Preferably, the feeding valve is used for injecting the composite melt which is preliminarily mixed with the anti-aging material into the melt cylinder, controlling the hydraulic telescopic rod to extend downwards at a constant speed, so that the pressing plate extrudes the composite melt in the melt cylinder downwards, the melt flows into the transition pipe at the bottom, starting an air cooler and a small air pump in the cooling mechanism when the melt enters the transition pipe, and pumping out air in the transition pipe through an air outlet pipe by the small air pump to take away heat on the material body; and the air pumped by the small air pump is downwards sprayed by the air nozzle to act on the linkage fan; the linkage fan rotates under the action of air pressure; the rotating linkage fan drives the coaxial first steering bevel gear to rotate, the first steering bevel gear drives the meshed second steering bevel gear to rotate, the second steering bevel gear drives the air exhaust fan to rotate, the air exhaust fan generates negative pressure, cold air generated by an air conditioner communicated with the air inlet pipe enters the transition pipe through the air inlet pipe by certain air pressure, and a material body in the transition pipe is cooled to be primarily solidified and hardened; when the primarily hardened material body descends to the bottom end of the transition pipe, a laser induction switch is triggered, the electric guide rail drives the driving motor to move upwards through the laser induction switch, and meanwhile, the driving motor is triggered to start, so that the spiral inserted rod ascends and is rotatably inserted into the hardened material body; meanwhile, after the driving motor ascends to a certain position, the limit switch is extruded to the limit stop block, and the limit switch stops the driving motor; meanwhile, the limit switch enables the electric guide rail to drive the driving motor to slide downwards, so that the spiral inserted rod pulls down the butted material body, and the material body is extruded to pass through the first extrusion cavity to form a corresponding shape; when the material body passing through the extrusion-type cavity enters the annular pipe in the spraying mechanism, the small laser lamp on the long connecting rod just passes through the brightness induction switch on the annular pipe, the brightness induction switch generates induction to start the paint conveying pump, and the paint in the anti-aging paint storage box is sprayed to the surface layer of the material body through the second spray holes distributed in a surrounding manner; and then the material body is continuously drawn and moved downwards to pass through the increasing forming mechanisms at each position one by one, when the material body passes through a transition pipe in the increasing forming mechanism, a brightness induction switch on the transition pipe senses a small laser lamp, then a melt conveying pump is triggered, the melt conveying pump sprays melt in a melt box to the outer side of the material body, then the material body continuously moves downwards to pass through a cooling mechanism for cooling and hardening, the material body is extruded to pass through an extrusion type cavity with a slightly larger inner cavity size, and after the extrusion is passed, a layer of anti-aging material is sprayed through a spraying mechanism arranged below the material body, so that multiple layers of anti-aging layers are processed from inside to outside by the forming material body.
Preferably, after the anti-aging layer is sprayed in the material pulling and forming step, the formed material body is sequentially subjected to the step S4 of surface layer reheating and the step S4 of surface layer air pressure impact, so that the anti-aging material layer on the surface layer of the material body is fully spread and embedded into the surface layer of the material body; a heating and pressurizing device is used in the surface reheating step S4 and the surface air pressure impact operation step S5.
Preferably, the heating and pressurizing apparatus includes: the electric heating ring, the air pressure cylinder, the strong pressure air pump and the air hole; the strong pressure air pump is fixedly arranged on the outer side of the air pressure cylinder; the air holes are uniformly formed in the inner wall of the air pressure cylinder, and the air outlet end of the high-pressure air pump is communicated with all the air holes; the inner diameter of the air pressure cylinder is gradually reduced from top to bottom; the electric heating ring is horizontally and fixedly connected to the upper side of the air pressure cylinder, and an electric heating wire is embedded in the inner wall of the electric heating ring; vertically enabling the material body after the anti-aging treatment to pass through an electric heating ring and an air pressure cylinder from top to bottom, and enabling the electric heating ring to be electrified to generate heat when the material body passes through the electric heating ring, heating an anti-aging material layer on the surface layer of the material body and a material layer on the surface layer of the material body, and increasing the fluidity of the material body; when the material body heating part passed a pneumatic tube, the strong compression air pump produced the strong pressure air current, sprayed on the material body top layer through the gas pocket, caused to increase during mobile ageing resistance material layer embedding material body top layer material to because the pneumatic tube internal diameter diminishes from last to down gradually, then the gas pocket that distributes is close to the material body gradually, and the effect of the atmospheric pressure of distributing from last to down is used in the material body promptly strengthens gradually, conveniently makes in the ageing resistance material layer firm embedding material body top layer material.
Compared with the prior art, the invention has the beneficial effects that:
1. the composite material sequentially passes through the extrusion type cavities with gradually increased sizes in a pull-down mode, and after passing through one extrusion type cavity, a layer of anti-aging material is sprayed, then a layer of composite material is sprayed, then the composite material passes through the next extrusion type cavity with increased size, and then the composite material sequentially passes through the extrusion type cavities at all positions, so that multiple anti-aging layers are processed from inside to outside on the forming body, and the anti-aging effect of the formed composite material is ensured;
2. the anti-aging material body is heated in all directions, so that the anti-aging material layer on the surface layer and the material activity of the surface layer of the material body are enhanced, then the material body vertically penetrates through the air pressure cylinder, the inner diameter of the air pressure cylinder is gradually reduced from top to bottom, the distributed air holes are gradually close to the material body, namely the effect of air pressure distributed from top to bottom on the material body is gradually enhanced, and the anti-aging material layer is conveniently and stably embedded into the material body surface layer.
Drawings
FIG. 1 is a schematic flow diagram of the surface anti-aging treatment process of the composite material pultrusion section bar of the present invention;
FIG. 2 is a schematic structural diagram of a stretch-forming apparatus used in the surface anti-aging treatment process for composite pultruded profiles according to the present invention;
FIG. 3 is a schematic structural diagram of a heating and pressurizing device used in the surface anti-aging treatment process of the composite material pultruded profile of the present invention;
FIG. 4 is an enlarged view of the structure at A in FIG. 2;
FIG. 5 is a schematic view of a portion of the air inlet duct of FIG. 4 in connection with a linkage fan and an air extractor fan;
FIG. 6 is a top view of the melting barrel of FIG. 2;
FIG. 7 is a top view of the ring tube of FIG. 4;
fig. 8 is a top view structural diagram of the long connecting rod in fig. 4 in matching connection with the small laser lamp.
In the figure: 1. stretch forming equipment; 2. a melting barrel; 3. pressing a plate; 4. a hydraulic telescopic rod; 5. a transition duct; 6. an extrusion type cavity; 7. a melting box; 8. an anti-aging paint storage bin; 9. connecting a long rod; 10. a spiral inserted link; 11. a paint delivery pump; 12. a melt delivery pump; 13. an annular tube; 14. an electric rail; 15. a limit stop; 16. a limit switch; 17. a drive motor; 18. an electric heating ring; 19. a pneumatic cylinder; 20. a strong pressure air pump; 21. air holes; 22. a small air pump; 23. an air outlet pipe; 24. a feed valve; 25. an air conditioner; 26. an air inlet pipe; 27. a laser inductive switch; 28. an air extraction fan; 29. a linkage fan; 30. a second steering bevel gear; 31. connecting a bracket; 32. a first steering bevel gear; 33. a miniature laser lamp; 34. a brightness induction switch; 35. a gas ejection head; 36. heating and pressurizing equipment; 37. a first nozzle hole; 38. and a second nozzle hole.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
Referring to fig. 1-8, the present invention provides a technical solution: the surface anti-aging treatment process of the composite material pultrusion profile comprises the following specific steps:
s1, mixing materials, namely firstly, preparing original materials to be used by a composite material according to a corresponding proportion, then crushing each original material by crushing equipment, putting the crushed materials into a melting furnace, and then melting all the crushed original materials; stirring at a constant speed by using stirring equipment in the melting process so as to fully mix the melted materials together; meanwhile, in the stirring process, the liquefied anti-aging material is poured into the stirring material, so that the anti-aging material is primarily mixed in the melting material;
s2, pressing, namely injecting the melt mixed with the anti-aging material preliminarily into a stretching forming device 1, and then pressurizing the injected melt to extrude the melt from the bottom of the stretching forming device 1; in the extrusion process, the uniform extrusion is kept;
s3, drawing and forming, namely drawing and forming the extruded molten material downwards when the molten material is extruded and discharged from the bottom of the stretch forming equipment 1, and primarily curing the extruded material body before drawing to ensure that the material body has certain hardness and is convenient to draw; meanwhile, the stretch forming equipment 1 is provided with a plurality of extrusion cavity bodies 6, the extrusion cavity bodies 6 are equidistantly distributed at the bottom of the stretch forming equipment 1 from top to bottom, and the sizes of the inner cavities of the extrusion cavity bodies 6 which are equidistantly distributed are gradually increased; at tensile material body in-process for the material body extrusion is through the extrusion type cavity 6 that distributes, every through an extrusion type cavity 6, just at tensile material body top layer spraying one deck ageing resistance material, then cover the melt of this material body that the one deck prepared in advance, then cool off solidification, the extrusion is through the extrusion type cavity 6 that next cavity is slightly big again, then the one deck ageing resistance material of spraying again, so relapse, make the shaping material body process out multilayer ageing resistance layer from inside to outside, guarantee the ageing resistance effect of shaping material body.
The stretch-forming apparatus 1 includes: the device comprises a melting barrel 2, a transition pipe 5, an electric guide rail 14, a driving motor 17, a laser induction switch 27, a limit switch 16, a limit stop 15, a long connecting rod 9, a spiral inserted bar 10, a melting box 7, a melting conveying pump 12, an anti-aging coating storage box 8, an enlarging and forming mechanism, a cooling mechanism and a spraying mechanism; a feeding valve 24 is arranged on the melting barrel 2; the transition pipe 5 is vertically and fixedly connected to the bottom of the melting barrel 2; the extrusion cavity 6 is fixedly connected to the bottom of the transition pipe 5; the cooling mechanism is arranged at the transition pipe 5; the electric guide rails 14 are vertically arranged at the bottom of the melting barrel 2 in pairs from left to right; the driving motor 17 is connected between the electric guide rails 14 in a sliding manner; the laser inductive switch 27 is arranged on the left inner wall and the right inner wall of the transition pipe 5 close to the lower end; the laser induction switch 27 is electrically connected with an uplink control circuit of the electric guide rail 14 and a starting circuit of the driving motor 17; the limit switch 16 is mounted to the left side of the drive motor 17; the limit switch 16 is electrically connected with a downlink control circuit of the electric guide rail 14 and a stop control circuit of the driving motor 17; the limit stop 15 is fixedly arranged on the outer wall of the electric guide rail 14, and the limit stop 15 is positioned right above the limit switch 16; the long connecting rod 9 is vertically and fixedly connected to the main shaft end of the driving motor 17; the spiral inserted bar 10 is fixedly connected to the upper end of the long connecting bar 9; and the spiral inserted bar 10 is inserted in the extrusion cavity 6; the spraying mechanism is arranged at the bottom of the extrusion cavity 6 and is in matched connection with the anti-aging paint storage box 8, and the spraying mechanism is used for spraying anti-aging materials on the materials passing through the extrusion cavity 6; the enlarging and forming mechanism is formed by combining another group of transition pipes 5, a cooling mechanism and a spraying mechanism, the enlarging and forming mechanisms are distributed at equal intervals along the long connecting rod 9, and the bottom of the transition pipe 5 in the enlarging and forming mechanism is connected with an extruding cavity 6 with enlarged size; the long connecting rod 9 penetrates through all the enlarging and forming mechanisms; a melting material conveying pump 12 is fixed on the outer wall of the upper end of the transition pipe 5 in the enlarging and forming mechanism; the inner wall of the upper end of the transition pipe 5 in the enlarging and forming mechanism is provided with first spray holes 37 at equal intervals; the feed end of the melt delivery pump 12 is connected with the melt box 7 in a matching way, and the discharge end of the melt delivery pump 12 is communicated with all the first spray holes 37 through the pipe body.
The cooling mechanism includes: the air conditioner comprises an air conditioner 25, an air inlet pipe 26, an air outlet pipe 23, a small air pump 22, an air nozzle 35, a linkage fan 29, a first steering bevel gear 32, a second steering bevel gear 30, a connecting bracket 31 and an air extracting fan 28; the air coolers 25 are arranged around the outside of the transition pipe 5 at equal intervals; the air inlet pipes 26 are fixedly connected to the transition pipe 5 at equal intervals, and the air inlet pipes 26 are communicated with the inner side of the transition pipe 5; meanwhile, the outer end of the air inlet pipe 26 is communicated with the cold air discharge end of the air conditioner 25; the air outlet pipe 23 is fixedly connected to the transition pipe 5 at equal intervals, and the air outlet pipe 23 is correspondingly positioned at the upper side of the air inlet pipe 26; the small air pump 22 is fixedly connected to the outer end of the air outlet pipe 23, and the air suction end of the small air pump 22 is communicated with the outer end of the air outlet pipe 23; the air nozzle 35 is mounted to the air outlet end of the small air pump 22; the interlocking fan 29 is rotatably connected to the upper side of the outer end of the air inlet pipe 26, and the air nozzle 35 faces the interlocking fan 29; the first syncline bevel gear 32 is coaxially connected to the lower side of the interlocking fan 29, and the first syncline bevel gear 32 is inside the intake duct 26; the connecting bracket 31 is fixedly connected to the inside of the intake pipe 26; the second steering helical gear 30 is rotatably connected to the connecting bracket 31, and the second steering helical gear 30 is engaged with the first steering helical gear 32; the extraction fan 28 is coaxially connected to the second steering bevel gear 30.
The second steering helical gear 30 is a hollow annular body, which facilitates the air flow to pass through.
The vertical fixedly connected with hydraulic telescoping rod 4 in melting feed cylinder 2's top, the lower extreme of hydraulic telescoping rod 4 is flexible end, the horizontal fixedly connected with clamp plate 3 of lower extreme of hydraulic telescoping rod 4, and 3 cooperation sliding connection of clamp plate are to the inboard of melting feed cylinder 2.
The spraying mechanism includes: the dope delivery pump 11, the annular pipe 13, and the second nozzle hole 38; the coating conveying pump 11 is arranged on the lower side of the extrusion type cavity 6, and the coating conveying pump 11 is connected with the anti-aging coating storage box 8 in a matching way; the annular pipe 13 is horizontally arranged right below the extrusion type cavity 6, and the annular pipe 13 is communicated with the output end of the coating material conveying pump 11; the second nozzle holes 38 are opened on the inner wall of the ring tube 13 at equal intervals around the circumference.
A brightness induction switch 34 is fixedly arranged on the upper side wall of each annular tube 13 and the transition tube 5 in the enlarging and forming mechanism; the brightness sensing switch 34 is electrically connected with a starting circuit of the coating material conveying pump 11 or the melting material conveying pump 12 at the position; the small laser lamps 33 are arranged on the side wall of the long connecting rod 9 close to the upper end in an encircling and equidistant mode.
The feed valve 24 is used for injecting a composite melt which is preliminarily mixed with an anti-aging material into the melt barrel 2, controlling the hydraulic telescopic rod 4 to extend downwards at a constant speed, so that the pressing plate 3 extrudes the composite melt in the melt barrel 2 downwards, so that the melt flows into the transition pipe 5 at the bottom, starting an air cooler 25 and a small air pump 22 in the cooling mechanism when the melt enters the transition pipe 5, and pumping out air in the transition pipe 5 through an air outlet pipe 23 by the small air pump 22 to take away heat on a material body; and the gas pumped by the small-sized air pump 22 is sprayed downwards through the gas nozzle 35 to act on the linked fan 29; the linkage fan 29 rotates under the action of air pressure; the rotating linkage fan 29 drives the coaxial first steering bevel gear 32 to rotate, the first steering bevel gear 32 drives the meshed second steering bevel gear 30 to rotate, the second steering bevel gear 30 drives the air extraction fan 28 to rotate, and the air extraction fan 28 generates negative pressure, so that cold air generated by the air conditioner 25 communicated with the air inlet pipe 26 enters the transition pipe 5 through the air inlet pipe 26 at a certain air pressure, and a material body in the transition pipe 5 is cooled to be primarily solidified and hardened; when the primarily hardened material body descends to the bottom end of the transition pipe 5, the laser induction switch 27 is triggered, the electric guide rail 14 drives the driving motor 17 to move upwards through the laser induction switch 27, and meanwhile, the driving motor 17 is triggered to start, so that the spiral inserted rod 10 rises and is rotatably inserted into the hardened material body; meanwhile, after the driving motor 17 rises to a certain position, the limit switch 16 is extruded on the limit stop 15, and the limit switch 16 stops the driving motor 17; meanwhile, the limit switch 16 enables the electric guide rail 14 to drive the driving motor 17 to slide downwards, so that the spiral inserted rod 10 pulls the butted material downwards, and the material is extruded to pass through the first extrusion cavity 6 to form a corresponding shape; when the material body passing through the extrusion type cavity 6 enters the annular tube 13 of the spraying mechanism, the small laser lamp 33 on the long connecting rod 9 just passes through the brightness induction switch 34 on the annular tube 13, and the brightness induction switch 34 generates induction to start the paint conveying pump 11, so that the paint in the anti-aging paint storage box 8 is sprayed on the surface layer of the material body through the second spray holes 38 distributed in a surrounding manner; and then the material body is continuously drawn and moved downwards to pass through the increasing and forming mechanisms at each position one by one, when the material body passes through a transition pipe 5 in the increasing and forming mechanism each time, a brightness sensing switch 34 on the transition pipe 5 senses a small laser lamp 33, then a melt conveying pump 12 is triggered, the melt conveying pump 12 sprays the melt in a melt box 7 to the outer side of the material body, then the material body is continuously moved downwards to pass through a cooling mechanism for cooling and hardening, and is extruded to pass through an extrusion type cavity 6 with a slightly larger inner cavity size, and after the extrusion is passed, a layer of anti-aging material is sprayed through a spraying mechanism arranged below, so that a plurality of anti-aging layers are processed on the forming material body from inside to outside.
After the anti-aging layer is sprayed in the material pulling and forming step, the forming body is subjected to surface layer reheating in the step S4 and surface layer air pressure impact in the step S5 in sequence, so that the anti-aging material layer on the surface layer of the body is fully expanded and embedded into the surface layer of the body; a heating and pressurizing device 36 is used during the surface reheating step S4 and the surface air pressure impact operation step S5.
The heating and pressurizing device 36 includes: an electric heating ring 18, an air pressure cylinder 19, a strong pressure air pump 20 and an air hole 21; the strong pressure air pump 20 is fixedly arranged on the outer side of the air pressure cylinder 19; the air holes 21 are uniformly formed in the inner wall of the air pressure cylinder 19, and the air outlet end of the strong pressure air pump 20 is communicated with all the air holes 21; the inner diameter of the pneumatic cylinder 19 gradually decreases from top to bottom; the electric heating ring 18 is horizontally and fixedly connected to the upper side of the air pressure cylinder 19, and the inner wall of the electric heating ring 18 is embedded with an electric heating wire; vertically enabling the material body after the anti-aging treatment to pass through an electric heating ring 18 and an air pressure cylinder 19 from top to bottom, and enabling the electric heating ring 18 to be electrified to generate heat when the material body passes through the electric heating ring 18, heating an anti-aging material layer on the surface layer of the material body and a material layer on the surface layer of the material body, and increasing the fluidity of the material body; when the heating part of the material body passes through the air pressure cylinder 19, the high-pressure air pump 20 generates high-pressure air flow, the high-pressure air flow is sprayed on the surface layer of the material body through the air holes 21, so that the anti-aging material layer with the flowability increased is embedded into the material body surface layer, and the inner diameter of the air pressure cylinder 19 is gradually reduced from top to bottom, the distributed air holes 21 are gradually close to the material body, namely, the effect of the air pressure distributed from top to bottom on the material body is gradually enhanced, and the anti-aging material layer is conveniently and stably embedded into the material body surface layer.
It should be noted that, in this document, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (9)
1. The surface anti-aging treatment process of the composite material pultrusion section is characterized by comprising the following specific steps of:
s1, mixing materials, namely firstly, preparing original materials to be used by a composite material according to a corresponding proportion, then crushing each original material, and melting the crushed materials; stirring at constant speed in the melting process; meanwhile, in the stirring process, the liquefied anti-aging material is poured into the stirring material, so that the anti-aging material is preliminarily mixed in the melting material;
s2, pressing, injecting the melt mixed with the anti-aging material preliminarily into a stretching forming device (1), and then pressurizing the injected melt to extrude the melt from the bottom of the stretching forming device (1); in the extrusion process, the uniform extrusion is kept;
s3, drawing and molding the extruded melt material downwards when the melt material is extruded and discharged from the bottom of the drawing and molding device (1), and primarily curing the extruded material body before drawing to ensure that the material body has certain hardness and is convenient to draw; meanwhile, the stretch forming equipment (1) is provided with a plurality of extrusion type cavities (6), and the sizes of the inner cavities of the distributed extrusion type cavities (6) are increased one by one; in the process of stretching the material body, the material body is extruded to pass through the distributed extrusion type cavities (6), each time the material body passes through one extrusion type cavity (6), a layer of anti-aging material is sprayed on the surface layer of the stretched material body, then a layer of prepared melt of the material body is covered, then the material body is cooled and solidified, then the material body is extruded to pass through the extrusion type cavity (6) with a slightly larger next cavity, then a layer of anti-aging material is sprayed, the steps are repeated, so that a plurality of layers of anti-aging layers are processed from inside to outside of the molded material body,
the stretch-forming apparatus (1) comprises: the device comprises a melting material barrel (2), a transition pipe (5), an electric guide rail (14), a driving motor (17), a laser induction switch (27), a limit switch (16), a limit stop (15), a long connecting rod (9), a spiral inserted rod (10), a melting material box (7), a melting material conveying pump (12), an anti-aging coating storage box (8), an enlarging and forming mechanism, a cooling mechanism and a spraying mechanism; a feeding valve (24) is arranged on the melting barrel (2); the transition pipe (5) is vertically and fixedly connected to the melting barrel (2); the extrusion cavity (6) is fixedly connected to the transition pipe (5); the cooling mechanism is mounted to the transition pipe (5); the electric guide rails (14) are vertically arranged at the melting barrel (2) in a left-right pair; the driving motor (17) is connected between the electric guide rails (14) in a sliding manner; the laser-induced switch (27) is mounted to the transition tube (5); the laser induction switch (27) is electrically connected with an uplink control circuit of the electric guide rail (14) and the driving motor (17); the limit switch (16) is mounted to the drive motor (17); the limit switch (16) is electrically connected with a downlink control circuit of the electric guide rail (14) and the driving motor (17); the limit stop (15) is fixedly arranged on the outer wall of the electric guide rail (14); the long connecting rod (9) is vertically and fixedly connected to the main shaft end of the driving motor (17); the spiral inserted bar (10) is fixedly connected to the upper end of the long connecting bar (9); the spraying mechanism is arranged at the bottom of the extrusion cavity (6) and is in matched connection with the anti-aging paint storage box (8), and the spraying mechanism is used for spraying anti-aging materials on the materials passing through the extrusion cavity (6); the enlarging and forming mechanism is formed by combining another group of transition pipes (5), a cooling mechanism and a spraying mechanism, and the bottom of the transition pipe (5) in the enlarging and forming mechanism is connected with the extrusion cavity (6) with enlarged size; the outer wall of the upper end of the transition pipe (5) in the enlarging and forming mechanism is fixed with the melting material conveying pump (12); first spray holes (37) are formed in the inner wall of the upper end of the transition pipe (5) in the enlarging and forming mechanism at equal intervals; the feeding end of the melting material conveying pump (12) is connected with the melting material box (7) in a matched mode, and the discharging end of the melting material conveying pump (12) is communicated with all the first spray holes (37).
2. The composite pultruded profile surface anti-aging treatment process according to claim 1, wherein: the cooling mechanism includes: the air conditioner comprises an air conditioner (25), an air inlet pipe (26), an air outlet pipe (23), a small air pump (22), an air nozzle (35), a linkage fan (29), a first steering bevel gear (32), a second steering bevel gear (30), a connecting support (31) and an air extracting fan (28); the air coolers (25) are arranged around the transition pipe (5) at equal intervals; the air inlet pipe (26) is fixedly connected to the transition pipe (5) in a surrounding and equidistant mode; meanwhile, the air inlet pipe (26) is communicated with a cold air discharge end of the air conditioner (25); the air outlet pipe (23) is fixedly connected to the transition pipe (5) in a surrounding and equidistant mode; the small air pump (22) is fixedly connected to the air outlet pipe (23); the air nozzle (35) is mounted to the air outlet end of the small air pump (22); the linkage fan (29) is rotatably connected to the upper side of the outer end head of the air inlet pipe (26); the first steering bevel gear (32) is coaxially connected to a lower side of the linkage fan (29); the connecting bracket (31) is fixedly connected to the inner side of the air inlet pipe (26); the second steering bevel gear (30) is rotationally connected to the connecting bracket (31), and the second steering bevel gear (30) is meshed with the first steering bevel gear (32); the air extraction fan (28) is coaxially connected to the second steering bevel gear (30).
3. The composite pultruded profile surface anti-aging treatment process according to claim 2, wherein: the second steering bevel gear (30) is a hollow annular body.
4. The composite pultruded profile surface anti-aging treatment process according to claim 3, wherein: the melting furnace is characterized in that a hydraulic telescopic rod (4) is fixedly connected to the top of the melting furnace barrel (2) in a vertical mode, a pressing plate (3) is fixedly connected to the lower end of the hydraulic telescopic rod (4) in a horizontal mode, and the pressing plate (3) is connected to the inner side of the melting furnace barrel (2) in a sliding mode in a matched mode.
5. The composite material pultruded profile surface anti-aging treatment process according to claim 4, wherein: the spraying mechanism includes: a coating material delivery pump (11), an annular pipe (13) and a second spray hole (38); the coating material conveying pump (11) is arranged on the lower side of the extrusion type cavity (6), and the coating material conveying pump (11) is connected with the anti-aging coating material storage box (8) in a matched mode; the annular pipe (13) is horizontally arranged right below the extrusion type cavity (6), and the annular pipe (13) is communicated with the output end of the coating material conveying pump (11); the second jet holes (38) are arranged on the inner wall of the annular pipe (13) in a surrounding and equidistant mode.
6. The composite pultruded profile surface anti-aging treatment process according to claim 5, wherein: a brightness induction switch (34) is fixedly arranged at each annular tube (13) and the transition tube (5) in the enlarging and forming mechanism; the brightness induction switch (34) is electrically connected with the coating material conveying pump (11) or the melting material conveying pump (12) at the position; connect stock (9) to encircle the equidistance on being close to the lateral wall of upper end and install small-size laser lamp (33).
7. The composite pultruded profile surface anti-aging treatment process according to claim 6, wherein: the feeding valve (24) is used for injecting a composite melt which is preliminarily mixed with an anti-aging material into the melt cylinder (2), controlling the hydraulic telescopic rod (4) to extend downwards at a constant speed to cause the pressing plate (3) to downwards extrude the composite melt in the melt cylinder (2), causing the melt to flow into the transition pipe (5) at the bottom, starting the air cooler (25) and the small air pump (22) in the cooling mechanism when the melt enters the transition pipe (5), and pumping out air in the transition pipe (5) through the air outlet pipe (23) by the small air pump (22) to take away heat on a material body; and the gas pumped by the small-sized air pump (22) is sprayed downwards by the air nozzle (35) to act on the linkage fan (29); the linkage fan (29) rotates under the action of air pressure; the rotating linkage fan (29) drives the coaxial first steering bevel gear (32) to rotate, the first steering bevel gear (32) drives the meshed second steering bevel gear (30) to rotate, the second steering bevel gear (30) drives the air extracting fan (28) to rotate, and the air extracting fan (28) generates negative pressure, so that cold air generated by the air conditioner (25) communicated with the air inlet pipe (26) enters the transition pipe (5) through the air inlet pipe (26) at a certain air pressure to cool a material body in the transition pipe (5) and is primarily solidified and hardened;
when the primarily hardened material body descends to the bottom end of the transition pipe (5), triggering the laser induction switch (27), enabling the electric guide rail (14) to drive the driving motor (17) to move upwards by the laser induction switch (27), and simultaneously triggering the driving motor (17) to start, so that the spiral inserted link (10) ascends and is rotatably inserted into the hardened material body; meanwhile, after the driving motor (17) rises to a certain position, the limit switch (16) is extruded to the limit stop (15), and the limit switch (16) stops the driving motor (17); meanwhile, the limit switch (16) enables the electric guide rail (14) to drive the driving motor (17) to slide downwards, so that the spiral inserted rod (10) pulls the butted material bodies downwards, and the material bodies are extruded to pass through the first extrusion cavity (6) to form a corresponding shape; when the paint body passing through the extrusion cavity (6) enters the annular pipe (13) in the spraying mechanism, the small laser lamp (33) on the long connecting rod (9) just passes through the brightness induction switch (34) on the annular pipe (13), and the brightness induction switch (34) induces to start the paint delivery pump (11), so that the paint in the anti-aging paint storage box (8) is sprayed to the surface material body through the second spray holes (38) distributed around;
and then the material body is continuously drawn and moved downwards to pass through the increasing forming mechanisms at each position one by one, when the material body passes through the transition pipe (5) in the increasing forming mechanism, a brightness sensing switch (34) on the transition pipe (5) senses a small laser lamp (33), then the melt conveying pump (12) is triggered, the melt conveying pump (12) enables the melt in the melt box (7) to be sprayed to the outer side of the material body, then the material body is continuously moved downwards to pass through the cooling mechanism for cooling and hardening, is extruded to pass through the next extrusion type cavity (6) with a slightly larger inner cavity size, and is sprayed with a layer of anti-aging material through the spraying mechanism arranged below after being extruded, so that a plurality of anti-aging layers are processed from inside to outside through the forming material body.
8. The composite material pultruded profile surface anti-aging treatment process according to claim 1, wherein: after the anti-aging layer is sprayed in the material pulling and forming step, the forming body is subjected to surface layer reheating in the step S4 and surface layer air pressure impact in the step S5 in sequence, so that the anti-aging material layer on the surface layer of the body is fully expanded and embedded into the surface layer of the body; a heating and pressurizing device (36) is used during the surface reheating step S4 and the surface air pressure impacting step S5.
9. The composite material pultruded profile surface anti-aging treatment process according to claim 8, wherein: the heating and pressurizing device (36) includes: an electric heating ring (18), an air pressure cylinder (19), a strong pressure air pump (20) and an air hole (21); the strong-pressure air pump (20) is fixedly arranged on the outer side of the air pressure cylinder (19); the air holes (21) are uniformly formed in the inner wall of the air pressure cylinder (19), and the air outlet end of the high-pressure air pump (20) is communicated with all the air holes (21); the inner diameter of the air pressure cylinder (19) is gradually reduced from top to bottom; the electric heating ring (18) is horizontally and fixedly connected to the upper side of the air pressure cylinder (19), and an electric heating wire is embedded in the inner wall of the electric heating ring (18); vertically enabling the anti-aging processed material body to pass through the electric heating ring (18) and the air pressure cylinder (19) from top to bottom, and when the material body passes through the electric heating ring (18), electrifying the electric heating ring (18) to generate heat, heating the anti-aging material layer on the surface layer of the material body and the material on the surface layer of the material body, and increasing the fluidity of the material body; the material body heating part passes during atmospheric pressure section of thick bamboo (19), strong compressed air pump (20) produce the strong pressure air current, through gas pocket (21) spray on the material body top layer, cause to increase during the ageing resistance material layer embedding material body top layer material of mobility, and because atmospheric pressure section of thick bamboo (19) internal diameter diminishes from last to down gradually, then distributes gas pocket (21) are close to the material body gradually, and the effect that the atmospheric pressure that distributes from last to down acts on the material body strengthens gradually promptly, conveniently makes the ageing resistance material layer firmly embed in the material body top layer material.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101746064A (en) * | 2008-11-28 | 2010-06-23 | 中国电力科学研究院 | Pultrusion molding device for multi-layer structural product |
| CN109789649A (en) * | 2016-10-07 | 2019-05-21 | 蒂森克虏伯碳素零件有限公司 | For continuously manufacturing the pultrusion method and facility of the blank formed by compo compound material |
| CN111572064A (en) * | 2020-04-27 | 2020-08-25 | 江苏神马电力股份有限公司 | Pultrusion device and technology |
| CN111923448A (en) * | 2020-07-24 | 2020-11-13 | 福建创立佳科技有限公司 | Method for improving heat and humidity resistance and aging resistance of aramid composite core |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101746064A (en) * | 2008-11-28 | 2010-06-23 | 中国电力科学研究院 | Pultrusion molding device for multi-layer structural product |
| CN109789649A (en) * | 2016-10-07 | 2019-05-21 | 蒂森克虏伯碳素零件有限公司 | For continuously manufacturing the pultrusion method and facility of the blank formed by compo compound material |
| CN111572064A (en) * | 2020-04-27 | 2020-08-25 | 江苏神马电力股份有限公司 | Pultrusion device and technology |
| CN111923448A (en) * | 2020-07-24 | 2020-11-13 | 福建创立佳科技有限公司 | Method for improving heat and humidity resistance and aging resistance of aramid composite core |
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