CN109986810B - Centralized feeding device and composite material pultrusion equipment comprising same - Google Patents
Centralized feeding device and composite material pultrusion equipment comprising same Download PDFInfo
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- CN109986810B CN109986810B CN201711498648.6A CN201711498648A CN109986810B CN 109986810 B CN109986810 B CN 109986810B CN 201711498648 A CN201711498648 A CN 201711498648A CN 109986810 B CN109986810 B CN 109986810B
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- 239000002131 composite material Substances 0.000 title claims abstract description 20
- 239000000463 material Substances 0.000 claims abstract description 132
- 238000003860 storage Methods 0.000 claims abstract description 91
- 238000002347 injection Methods 0.000 claims abstract description 62
- 239000007924 injection Substances 0.000 claims abstract description 62
- 229920005862 polyol Polymers 0.000 claims description 74
- 150000003077 polyols Chemical class 0.000 claims description 74
- 238000003756 stirring Methods 0.000 claims description 62
- 239000000835 fiber Substances 0.000 claims description 56
- 239000012948 isocyanate Substances 0.000 claims description 44
- 150000002513 isocyanates Chemical class 0.000 claims description 44
- 238000001816 cooling Methods 0.000 claims description 27
- 238000000429 assembly Methods 0.000 claims description 11
- 230000000712 assembly Effects 0.000 claims description 11
- 239000003292 glue Substances 0.000 claims description 10
- 230000005540 biological transmission Effects 0.000 claims description 4
- 238000005520 cutting process Methods 0.000 claims description 4
- 238000001514 detection method Methods 0.000 claims description 4
- 238000000151 deposition Methods 0.000 claims description 3
- 238000007790 scraping Methods 0.000 claims 1
- 230000003139 buffering effect Effects 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 17
- 230000008569 process Effects 0.000 description 11
- 230000000694 effects Effects 0.000 description 9
- 238000010586 diagram Methods 0.000 description 5
- 238000013016 damping Methods 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 230000007246 mechanism Effects 0.000 description 4
- 229920005903 polyol mixture Polymers 0.000 description 4
- 229920005749 polyurethane resin Polymers 0.000 description 4
- 229920005989 resin Polymers 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- 238000012840 feeding operation Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 229920002635 polyurethane Polymers 0.000 description 2
- 239000004814 polyurethane Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 239000000110 cooling liquid Substances 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000036632 reaction speed Effects 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/02—Mixing; Kneading non-continuous, with mechanical mixing or kneading devices, i.e. batch type
- B29B7/06—Mixing; Kneading non-continuous, with mechanical mixing or kneading devices, i.e. batch type with movable mixing or kneading devices
- B29B7/10—Mixing; Kneading non-continuous, with mechanical mixing or kneading devices, i.e. batch type with movable mixing or kneading devices rotary
- B29B7/12—Mixing; Kneading non-continuous, with mechanical mixing or kneading devices, i.e. batch type with movable mixing or kneading devices rotary with single shaft
- B29B7/16—Mixing; Kneading non-continuous, with mechanical mixing or kneading devices, i.e. batch type with movable mixing or kneading devices rotary with single shaft with paddles or arms
-
- 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
- B29C31/00—Handling, e.g. feeding of the material to be shaped, storage of plastics material before moulding; Automation, i.e. automated handling lines in plastics processing plants, e.g. using manipulators or robots
- B29C31/04—Feeding of the material to be moulded, e.g. into a mould cavity
-
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Composite Materials (AREA)
- Robotics (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
Abstract
The invention discloses a centralized feeding device and composite material pultrusion equipment comprising the same, wherein the centralized feeding device comprises at least one group of centralized feeding components, each group of centralized feeding components is used for providing a material for a pultrusion traction device, and each group of centralized feeding components comprises: the storage barrel is used for storing materials to be transported; the buffer storage barrel is connected with the storage barrel through a conveying pipeline and is used for buffering materials to be injected; annotate material subassembly, include: the material injection pipeline is connected with the buffer storage barrel, and the material injection pump is used for conveying materials in the buffer storage barrel into a material injection box of the pultrusion traction device through the material injection pipeline; and the material adjusting and controlling device is used for adjusting the material quantity in the buffer storage barrel and the material quantity in the material injection box. The invention has simple structure, can effectively realize centralized supply of materials, greatly saves the occupied area of workshops, saves labor cost and time cost, and improves the safety of workshop environment and personnel.
Description
Technical Field
The invention belongs to the technical field of composite material pultrusion, and particularly relates to a centralized feeding device and composite material pultrusion equipment comprising the same.
Background
The pultrusion process is to heat, cure and pultrude continuous glass fiber yarn, fabric, etc. soaked with glue solution under the action of traction force through a mold with equal section to produce continuously products with unlimited length.
The existing pultrusion equipment is directly provided with a charging basket at the outer side of the material injection machine, and is used for feeding by manpower. The volume of the charging basket is more than 50 liters, the occupied area is large, a large feeding channel needs to be reserved, and the requirements on the field of workshops are high. Moreover, the phenomenon that the mixture splashes and drips in the process of manual material conveying and feeding affects the cleanness and the neatness of workshops, and personnel slip is easily caused, so that potential safety hazards exist.
Disclosure of Invention
In order to solve the technical problems, the invention provides a centralized feeding device and a composite material pultrusion device comprising the same.
In order to achieve the above purpose, the technical scheme of the invention is as follows:
a concentrated feed device comprising at least one set of concentrated feed assemblies, each set of concentrated feed assemblies being for providing a material to a pultrusion pulling device, each set of concentrated feed assemblies comprising:
the storage tanks are used for storing materials to be transported, and one storage tank corresponds to one material to be transported;
the storage device comprises a storage barrel, a pulling and extruding traction device, a storage barrel and a storage barrel, wherein the storage barrel is correspondingly arranged at one side of the pulling and extruding traction device, is connected with the storage barrel through a conveying pipeline and is used for caching materials to be injected, a storage barrel material sensor is arranged in the storage barrel, and a storage barrel feeding control valve is arranged at a feeding port of the storage barrel;
annotate material subassembly, include: the material filling device comprises a material filling pipeline and a material filling pump, wherein the material filling pipeline is connected with a buffer storage barrel, the material filling pump is used for conveying materials in the buffer storage barrel into a material filling box of the pultrusion traction device through the material filling pipeline, and a material filling box material sensor is arranged in the material filling box;
and the material adjusting and controlling device is respectively electrically connected with the material sensor of the buffer bucket and the material sensor of the material injection box, and respectively controls the material feeding control valve of the buffer bucket and the material injection pump, and is used for adjusting the material quantity in the buffer bucket and the material quantity in the material injection box.
The centralized feeding device is simple in structure, can effectively realize automatic centralized feeding of materials, greatly saves the occupied area of workshops, saves labor cost and time cost, and improves the safety of workshop environments and personnel.
On the basis of the technical scheme, the following improvement can be made:
as the preferable scheme, the transportation pipeline is a circulating closed-loop pipeline, after the material flows out from the storage barrels, part of the material is output to each buffer barrel through the transportation pipeline, and the redundant material returns to the storage barrels through the transportation pipeline.
By adopting the preferable scheme, the materials are integrally circulated, so that layering phenomenon of some mixed materials can be effectively prevented.
As the preferable scheme, the movable core is arranged in the conveying pipeline and is of a spiral structure, and the movable core automatically rotates when materials are conveyed.
By adopting the preferable scheme, the movable core with the spiral structure can effectively scrape down materials adhered to the inner wall of the conveying pipeline, so that the material deposition in the conveying pipeline is effectively prevented, particularly the polyol raw material of polyurethane is easy to delaminate, and the problem of layering of the polyol during centralized polyurethane feeding is effectively solved by the movable core with the spiral structure.
Preferably, a stirring device is arranged in the storage barrel and/or the buffer barrel.
By adopting the preferable scheme, the materials are stirred in real time, so that layering phenomenon of some mixed materials can be effectively prevented.
Preferably, the stirring device includes: stirring roller and with stirring driving device that stirring roller transmission is connected, stirring roller includes: stirring body, cover locate stirring body both ends stirring cover and set up the stirring leaf on the stirring cover, be equipped with on the lateral wall of stirring cover with stirring body sliding connection's spout, and stirring body's both ends pass through elastic connection spare and stirring cover elastic connection.
By adopting the preferable scheme, the stirring sleeve is elastically connected with the stirring body through the elastic piece, the effective length of the stirring roller can be effectively adjusted, the stirring uniformity of materials is ensured, and the splashing condition can not occur. It is worth noting that the stirring roller cannot exceed the maximum height of the material liquid level set in the storage barrel or the buffer barrel in the stirring process, so that misoperation of a sensor is prevented.
As the preferable scheme, the outside of annotating the material pipeline is equipped with cooling device, is equipped with pipeline temperature sensor on annotating the material pipeline, and when pipeline temperature sensor gathers the temperature and surpasses the setting value, cooling device begins work, and when pipeline temperature sensor gathers the temperature and is less than the setting value, cooling device closes.
By adopting the preferable scheme, the automatic cooling can be effectively realized, the cooling effect is good, the energy is saved, the environment is protected, and the energy waste is avoided.
As the preferable scheme, be equipped with storage vat material sensor in the storage vat, and be equipped with storage vat pan feeding control valve at the pan feeding mouth of storage vat, this storage vat pan feeding control valve is connected with material regulation controlling means electricity, and material regulation controlling means adjusts the material volume in the storage vat through controlling storage vat pan feeding control valve.
By adopting the preferable scheme, the material quantity in the storage barrel can be effectively controlled.
A composite pultrusion apparatus comprising: fiber storage device, fiber guiding device, fiber preforming device, pultrusion die set, pultrusion draw gear, section bar cutting device and concentrated feedway, concentrated feedway includes: a concentrated feed assembly for providing polyol and a concentrated feed assembly for providing isocyanate.
The invention provides a composite material pultrusion device which is simple in structure and convenient to operate, and can effectively realize pultrusion of a composite material.
As a preferred aspect, the fiber storage device includes: the device comprises a fiber storage room, a fiber storage rack, a humidity sensor for detecting humidity in the fiber storage room, a temperature sensor for detecting temperature in the fiber storage room, a humidity adjusting component and a temperature adjusting component.
By adopting the preferable scheme, the temperature and the humidity in the fiber storage room are ensured to be within a certain range.
As a preferred embodiment, the method further comprises: yarn breakage detection device, it sets up behind fibre guider, includes: the device comprises an image sensor and an indicator, wherein the image sensor is used for detecting whether yarn breakage exists after fiber yarns pass through a fiber guiding device, and the indicator is used for indicating after the yarn breakage occurs.
By adopting the preferable scheme, the image sensor can observe whether the fiber yarn is in normal operation in real time, and when the fiber yarn does not run, the indicator sends out an indication signal to inform an operator of processing.
As a preferable scheme, a glue injection device which is connected with the frame of the pultrusion traction device in a sliding way is arranged on the frame of the pultrusion traction device, and a material injection pump is arranged in the glue injection device.
By adopting the preferable scheme, the material injection pump is arranged in a drawing mode, so that the maintenance is more convenient.
Drawings
Fig. 1 is a schematic structural diagram of a centralized feeding device according to an embodiment of the present invention.
Fig. 2 is a partial cross-sectional view of a polyol transportation pipeline provided by an embodiment of the present invention.
Fig. 3 is a schematic structural diagram of a stirring device according to an embodiment of the present invention.
Fig. 4 is a schematic structural diagram of a composite material pultrusion apparatus according to an embodiment of the present invention.
Fig. 5 is a schematic partial view of a composite pultrusion apparatus according to an embodiment of the present invention.
FIG. 6 is a schematic diagram of a composite pultrusion apparatus according to a second embodiment of the present invention.
Fig. 7 is a schematic structural diagram of a damping mechanism according to an embodiment of the present invention.
Wherein: 1. polyol centralized feeding component, 11, polyol storage vat, 12, polyol buffer vat, 13, polyol transportation pipeline, 131, movable core, 14, polyol injection pipeline, 2, isocyanate centralized feeding component, 21, isocyanate storage vat, 22, isocyanate buffer vat, 23, isocyanate transportation pipeline, 24, isocyanate injection pipeline, 3, stirring roller, 31, stirring body, 32 stirring sleeve, 33 stirring blade, 34 elastic connector, 4, cooling device, 41, cooling rack, 42, cooling pipe, 5, fiber storage device, 6 fiber guiding device, 7, fiber preforming device, 8, pultrusion die device, 9, pultrusion traction device, 91 injection box, 92, damping mechanism, 921, left base, 922, right base, 923, arc plate, 924, pin shaft, 925, first spring, 926, sliding seat, 927, connecting plate, 928, short shaft, 929, rebound plate, 920, second spring, 10, section bar cutting device, 101, broken yarn detection device.
Detailed Description
Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
For the purpose of the present invention, in some embodiments of a concentrated feed device and a composite pultrusion apparatus including the same, as shown in fig. 1, a concentrated feed device includes two groups of concentrated feed assemblies, one group of polyol concentrated feed assemblies 1 for providing polyol to a pultrusion traction device 9 and the other group of isocyanate concentrated feed assemblies 2 for providing isocyanate to the pultrusion traction device 9.
The polyol concentrate feed assembly 1 comprises:
a polyol storage barrel 11 for storing polyol to be transported;
a polyol buffer barrel 12, wherein one polyol buffer barrel 12 is correspondingly arranged at one side of a pultrusion traction device 9, the polyol buffer barrel 12 is connected with a polyol storage barrel 11 through a polyol transportation pipeline 13 and is used for buffering polyol to be injected, a buffer barrel material sensor is arranged in the polyol buffer barrel 12, and a buffer barrel feeding control valve is arranged at a feeding port of the polyol buffer barrel 12;
a polyol injection assembly comprising: a polyol injection pipeline 14 and an injection pump, wherein the polyol injection pipeline 14 is connected with the polyol buffer barrel 12, the injection pump is used for conveying the polyol in the polyol buffer barrel 12 into an injection box 91 of the pultrusion traction device 9 through the polyol injection pipeline 14, and an injection box material sensor is arranged in the injection box 91;
the material adjusting and controlling device is respectively and electrically connected with the buffer bucket material sensor and the material injecting box material sensor, respectively controls the buffer bucket material feeding control valve and the material injecting pump and is used for adjusting the polyol amount in the polyol buffer bucket 12 and the polyol amount in the material injecting box 91.
The isocyanate concentrated feed assembly 2 comprises:
an isocyanate storage bucket 21 for storing isocyanate to be transported;
an isocyanate buffer barrel 22, wherein one isocyanate buffer barrel 22 is correspondingly arranged at one side of a pultrusion traction device 9, the isocyanate buffer barrel 22 is connected with an isocyanate storage barrel 21 through an isocyanate transportation pipeline 23 and is used for buffering isocyanate to be injected, a buffer barrel material sensor is arranged in the isocyanate buffer barrel 22, and a buffer barrel feeding control valve is arranged at a feeding port of the isocyanate buffer barrel 22;
an isocyanate injection assembly comprising: an isocyanate injection pipeline 24 and an injection pump, wherein the isocyanate injection pipeline 24 is connected with the isocyanate buffer bucket 22, the injection pump is used for conveying isocyanate in the isocyanate buffer bucket 22 into an injection box 91 of the pultrusion traction device 9 through the isocyanate injection pipeline 24, and an injection box material sensor is arranged in the injection box 91;
the material adjusting and controlling device is respectively and electrically connected with the buffer bucket material sensor and the material injecting box material sensor, respectively controls the buffer bucket material feeding control valve and the material injecting pump and is used for adjusting the isocyanate amount in the isocyanate buffer bucket 22 and the isocyanate amount in the material injecting box 91.
The centralized feeding device has the following beneficial effects:
firstly, simple structure can effectively realize the concentrated supply of material, has saved the area in workshop greatly, saves cost of labor and time cost, improves workshop environment and personnel's security, realizes the automation of pultrusion section bar.
Secondly, the material is cached by adopting the caching barrel, so that the volume of the charging barrel of each machine can be greatly reduced, the volume of the storage tank of each machine is generally about 70 liters, the volume of the charging barrel of each machine can be reduced to about 7 liters by concentrated feeding at present, the occupied space of equipment is greatly reduced, and the manufacturing cost is reduced.
Thirdly, the buffer tank is a small storage tank, and the influence of pipeline pressure on fluctuation of the material injection proportion of the material injection component can be avoided.
Fourth, the polyol buffer barrel 12 and the isocyanate buffer barrel 22 are sensed by the buffer barrel material sensor, the material adjusting control device automatically performs the feeding operation, when the material in the buffer barrel is less than a certain value, the feeding operation is automatically performed, and when the material in the buffer barrel exceeds a certain value, the material is automatically closed.
Fifth, the material sensor of the material injection box detects the amount of material in the material injection box 91, and the material adjusting and controlling device controls the material injection pump to inject the material. When the liquid level in the filling box 91 is lower than the set value, the filling pump automatically performs the filling operation. When the liquid level in the filling box 91 is higher than the set value, the filling pump automatically performs the material reducing operation.
To further optimize the effect of the present invention, in other embodiments, the remaining feature techniques are the same, except that the polyol transportation pipeline 13 is a circulation closed loop pipeline, after the polyol flows out of the polyol storage barrels 11, part of the polyol is output to each polyol buffer barrel 12 through the polyol transportation pipeline 13, and the surplus polyol is returned to the polyol storage barrel 11 through the polyol transportation pipeline 13.
By adopting the preferable scheme, the polyol is subjected to integral circulation, so that the layering phenomenon of the polyol mixture can be effectively prevented. In the always circulating state, the polyol mixture is easy to delaminate, and if the polyol mixture is always in a static state, the polyol mixture is easy to delaminate.
The isocyanate transporting pipeline 23 is a one-way pipeline, and isocyanate can not be layered after standing for a long time, so that the isocyanate transporting pipeline 23 is a one-way pipeline, and the pipeline is closed in the whole process, and thus, the isocyanate can not be completely contacted with air, and can not be crystallized.
Further, as shown in fig. 2, a movable core 131 is provided in the polyol transportation pipe 13, the movable core 131 has a spiral structure, and the movable core 131 automatically rotates when transporting materials.
With the above preferred scheme, the movable core 131 of the spiral structure can effectively scrape off the polyol adhered to the inner wall of the polyol transportation pipeline 13, and effectively prevent the polyol from depositing. The polyol is extremely easy to delaminate, even if the polyol flows in a pipeline, the polyol can delaminate due to different flow rates at different pipeline walls and pipeline center positions, and the feed components can be different, so that the process and product performance are affected. By arranging the movable core 131 with a spiral structure in the pipeline, firstly, the spiral structure plays a role in mixing the polyol in the pipeline, so that layering is not easy to occur; and secondly, tangential force is generated at the spiral position through the flowing of the polyol to drive the spiral core to rotate, so that the polyol on the wall of the pipeline is scraped, the polyol is fully mixed, and the problem of layering of the polyol in the conveying process is thoroughly solved.
In order to further optimize the effect of the present invention, in other embodiments, the remaining feature techniques are the same, except that a stirring device is provided within the polyol storage vat 11 and/or the polyol buffer vat 12.
By adopting the preferable scheme, the polyol is stirred in real time, so that the layering phenomenon of polyol mixing can be effectively prevented.
Further, as shown in fig. 3, the stirring device includes: stirring roller 3 and with stirring drive arrangement of stirring roller 3 transmission connection, stirring roller 3 includes: stirring body 31, cover locate stirring cover 32 at stirring body 31 both ends and set up stirring leaf 33 on stirring cover 32, be equipped with on the lateral wall of stirring cover 32 with stirring body 31 sliding connection's spout, and stirring body 31's both ends pass through elastic connection spare 34 and stirring cover 32 elastic connection.
By adopting the above preferred scheme, the stirring sleeve 32 is elastically connected with the stirring body 31 through the elastic piece, the effective length of the stirring roller 3 can be effectively adjusted, the stirring uniformity of materials is ensured, and the splashing condition can not occur. It is noted that the stirring roller 3 cannot exceed the maximum height of the material liquid level set in the storage bucket or the buffer bucket in the stirring process, so as to prevent misoperation of the sensor.
In order to further optimize the effect of the present invention, in other embodiments, the other features are the same, except that the cooling device 4 is disposed on the outside of the polyol-injection line 14 and the isocyanate-injection line 24, and the pipe temperature sensors are disposed on the polyol-injection line 14 and the isocyanate-injection line 24, and when the temperature collected by the pipe temperature sensors exceeds the set value, the cooling device 4 starts to operate, and when the temperature collected by the pipe temperature sensors is lower than the set value, the cooling device 4 is turned off.
By adopting the preferable scheme, the automatic cooling can be effectively realized, the cooling effect is good, the energy is saved, the environment is protected, and the energy waste is avoided.
As shown in fig. 6, the cooling device 4 includes: the cooling frame 41 and the cooling pipe 42 are sleeved outside the polyol injection pipeline 14 and the isocyanate injection pipeline 24, and the cooling frame 41 is in transmission connection with a cooling frame 41 driving device; the cooling pipe 42 is spirally provided on the cooling rack 41, and the cooling pipe 42 is filled with a cooling liquid. The cooling rack 41 driving device drives the cooling rack 41 to move, so that better cooling effect is ensured.
In order to further optimize the implementation effect of the present invention, in other embodiments, the other feature technologies are the same, except that a storage tank material sensor is provided in the polyol storage tank 11 and the isocyanate storage tank 21, and a storage tank feed control valve is provided in the feed inlets of the polyol storage tank 11 and the isocyanate storage tank 21, and the storage tank feed control valve is electrically connected to a material adjustment control device, and the material adjustment control device adjusts the polyol amount in the polyol storage tank 11 and the isocyanate amount in the isocyanate storage tank 21 by controlling the storage tank feed control valve, respectively.
By adopting the preferable scheme, the material quantity in the storage barrel can be effectively controlled.
As shown in fig. 4, the composite pultrusion apparatus includes: the device comprises a fiber storage device 5, a fiber guiding device 6, a fiber preforming device 7, a pultrusion die device 8, a pultrusion traction device 9, a profile cutting device 10 and a centralized feeding device, wherein the centralized feeding device comprises: a multi-ester concentrated feed assembly for providing multi-esters and an isocyanate concentrated feed assembly 2 for providing isocyanates.
The invention provides a composite material pultrusion device which is simple in structure and convenient to operate, and can effectively realize pultrusion of a composite material.
To further optimize the implementation of the invention, in other embodiments the remaining feature techniques are identical, except that the fiber storage device 5 comprises: the device comprises a fiber storage room, a fiber storage rack, a humidity sensor for detecting humidity in the fiber storage room, a temperature sensor for detecting temperature in the fiber storage room, a humidity adjusting component and a temperature adjusting component.
By adopting the preferable scheme, the temperature and the humidity in the fiber storage room are ensured to be within a certain range. The fiber storage rack is used for placing fiber yarns, and the constant-humidity fiber storage room can enable the fiber yarns inside to be in a constant-humidity state all the time, and is particularly important for the condition that polyurethane resin exists in the later-stage pultrusion process. Because polyurethane resins are very sensitive to moisture, the presence of small amounts of moisture on the fiber yarn can result in air bubbles in the product produced. The constant temperature of the fiber yarn is important especially for the presence of polyurethane resin during the post-pultrusion process. The reactivity of the mixed polyurethane resin is relatively high, the reaction speed is obviously accelerated along with the temperature rise, and if the mixed resin cannot be used in a short time, the resin can react vigorously. The content of the fiber yarn is more than 50% of the product, the temperature of the fiber yarn is well controlled, and the influence of fluctuation of the temperature of the fiber yarn on the resin reaction can be reduced.
The fiber yarn inside the constant-temperature and constant-humidity fiber storage room can be always in a constant-drying state. The strength of the product is improved, and the appearance of the product is improved.
To further optimize the implementation effect of the present invention, in other embodiments, the remaining feature techniques are the same, except that it further includes: the yarn breakage detection device 101 provided after the fiber guiding device 6 includes: the image sensor is used for detecting whether yarn breakage exists after the fiber yarn passes through the fiber guiding device 6, and the indicator is used for indicating after the yarn breakage occurs.
By adopting the preferable scheme, the image sensor can observe whether the fiber yarn is in normal operation in real time, and when the fiber yarn does not run, the indicator sends out an indication signal to inform an operator of processing. The specific process is as follows: the image sensor shoots an image at regular intervals, compares the image with a standard image, and if the morphology of the fiber yarn is found to change, the image sensor comprises: when the state of tension is changed into a scattered state or the fiber yarn is lost, the fiber yarn is determined to have yarn breakage, and the indicator sends out an indication signal to inform an operator to process.
In order to further optimize the implementation effect of the invention, in other embodiments, the rest of the characteristic techniques are the same, except that a glue injection device which is connected with the frame of the pultrusion traction device 9 in a sliding way is arranged on the frame, and a glue injection pump is arranged in the glue injection device. .
By adopting the preferable scheme, the material injection pump is arranged in a drawing mode, so that the maintenance is more convenient. The bottom of the glue injection device is provided with a damping mechanism 92, as shown in fig. 7, the damping mechanism 92 specifically includes:
the left base 921, the bottom of the left base 921 is connected with the frame of the pultrusion traction device 9 in a sliding way;
a right base 922, the bottom of the right base 922 is connected with the frame of the pultrusion traction device 9 in a sliding way;
an arcuate plate 923, the arcuate plate 923 being configured to connect the left base 921 and the right base 922;
the top ends of the left base 921 and the right base 922 are fixedly connected with a pin 924, a first spring 925 and a sliding seat 926 are sleeved on each pin 924, one end of the first spring 925 is in contact with the left base 921 or the right base 922, and the other end of the first spring 925 is in contact with the sliding seat 926;
a connection plate 927, wherein the connection plate 927 is used for connecting the sliding seat 926 on the left base 921 and the sliding seat 926 on the right base 922;
the short shaft 928, the short shaft 928 is arranged in parallel with the pin 924, one end of the short shaft 928 is arranged on the connecting plate 927, and the opposite end is connected with the bottom of the storage box;
the rebound board 929, the rebound board 929 is sleeved on the short shaft 928, and the end of the pin 924 is penetrated on the rebound board 929;
and a second spring 920, wherein the second spring 920 is sleeved on the short shaft 928, one end of the second spring contacts the connecting plate 927, and the other end contacts the rebound plate 929.
Adopt damper 92 to carry out the shock attenuation, guarantee the stability of annotating the work of material pump.
It should be noted that, for the preferred embodiment of the present invention, it is possible for a person skilled in the art to make several variations and modifications without departing from the inventive concept of the present invention, which fall within the protection scope of the present invention.
Claims (8)
1. A concentrated feed device comprising at least two sets of concentrated feed assemblies, each set of concentrated feed assemblies for providing a material to a pultrusion traction device, wherein a set of concentrated feed assemblies are for providing a polyol and a set of concentrated feed assemblies are for providing an isocyanate, each set of concentrated feed assemblies comprising:
the storage tanks are used for storing a material to be transported, and one storage tank corresponds to one material to be transported;
the storage barrel is correspondingly arranged at one side of the pultrusion traction device, is connected with the storage barrel through a conveying pipeline and is used for caching materials to be injected, a storage barrel material sensor is arranged in the storage barrel, and a storage barrel feeding control valve is arranged at a feeding port of the storage barrel;
annotate material subassembly, include: the material injection pipeline is connected with the buffer barrel, the material injection pump is used for conveying materials in the buffer barrel into a material injection box of the pultrusion traction device through the material injection pipeline, and a material injection box material sensor is arranged in the material injection box;
the material adjusting and controlling device is respectively and electrically connected with the material sensor of the buffer bucket and the material sensor of the material injection box, respectively controls the material feeding control valve and the material injection pump of the buffer bucket and is used for adjusting the material quantity in the buffer bucket and the material quantity in the material injection box;
the conveying pipeline of the centralized feeding component for providing the polyol is a circulating closed-loop pipeline, after the polyol flows out of the storage barrels of the corresponding materials, part of the polyol is output to each corresponding buffer barrel through the conveying pipeline, and the redundant polyol returns to the storage barrels through the corresponding conveying pipeline; the movable core is of a spiral structure and automatically rotates when the polyol is transported, and the movable core is used for scraping the polyol adhered on the inner wall of the transportation pipeline and preventing the polyol from depositing or layering;
the transport pipe for providing the concentrated feed assembly of isocyanate is a unidirectional feed pipe.
2. The concentrated feed device of claim 1, wherein a stirring device is provided in the storage tank and/or the buffer tank of the concentrated feed assembly for providing polyol.
3. The concentrated feed device of claim 2, wherein the stirring device comprises: stirring roller and with stirring drive arrangement that stirring roller transmission is connected, the stirring roller includes: stirring body, cover are located stirring cover at stirring body both ends and set up in stirring leaf on the stirring cover, be equipped with on the lateral wall of stirring cover with stirring body sliding connection's spout, just stirring body's both ends pass through elastic connection spare with stirring cover elastic connection.
4. A concentrated feeding device according to any one of claims 1-3, wherein a cooling device is arranged on the outer side of the feeding pipeline, a pipeline temperature sensor is arranged on the feeding pipeline, the cooling device starts to work when the temperature acquired by the pipeline temperature sensor exceeds a set value, and the cooling device is closed when the temperature acquired by the pipeline temperature sensor is lower than the set value.
5. A composite pultrusion apparatus comprising: the fiber storage device, the fiber guiding device, the fiber preforming device, the pultrusion die device, the pultrusion traction device and the profile cutting device, which are characterized by further comprising a centralized feeding device according to any one of claims 1-4, wherein the centralized feeding device comprises: a concentrated feed assembly for providing polyol and a concentrated feed assembly for providing isocyanate.
6. The concentrated-feed composite pultrusion apparatus of claim 5, wherein the fiber storage means includes: the device comprises a fiber storage room, a fiber storage rack, a humidity sensor for detecting the humidity in the fiber storage room, a temperature sensor for detecting the temperature in the fiber storage room, a humidity adjusting component and a temperature adjusting component.
7. The concentrated-feed composite pultrusion apparatus of claim 5, further comprising: yarn breakage detection device, it set up in behind the fibre guider, include: the device comprises an image sensor and an indicator, wherein the image sensor is used for detecting whether yarn breakage exists after fiber yarns pass through the fiber guiding device, and the indicator is used for indicating after the yarn breakage occurs.
8. The concentrated-feeding composite material pultrusion device according to claim 5, wherein a frame of the pultrusion traction device is provided with a glue injection device in sliding connection with the frame, and the glue injection pump is arranged in the glue injection device.
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| WO2022223467A1 (en) | 2021-04-22 | 2022-10-27 | Covestro Deutschland Ag | A process for preparing a pultruded polyurethane composite |
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