CN114476685B - Lost foam copolymer multipoint feeding and conveying system - Google Patents
Lost foam copolymer multipoint feeding and conveying system Download PDFInfo
- Publication number
- CN114476685B CN114476685B CN202210198940.0A CN202210198940A CN114476685B CN 114476685 B CN114476685 B CN 114476685B CN 202210198940 A CN202210198940 A CN 202210198940A CN 114476685 B CN114476685 B CN 114476685B
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- China
- Prior art keywords
- curing
- bag
- bin
- foam particles
- eps
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 239000006260 foam Substances 0.000 title claims abstract description 51
- 229920001577 copolymer Polymers 0.000 title claims abstract description 11
- 239000002245 particle Substances 0.000 claims abstract description 39
- 230000000694 effects Effects 0.000 claims abstract description 7
- 239000000463 material Substances 0.000 claims description 44
- 230000005484 gravity Effects 0.000 claims description 6
- 238000003860 storage Methods 0.000 claims description 5
- 238000005187 foaming Methods 0.000 abstract description 5
- 230000002035 prolonged effect Effects 0.000 abstract description 3
- 238000005266 casting Methods 0.000 description 9
- 238000000034 method Methods 0.000 description 5
- 238000010114 lost-foam casting Methods 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 210000000497 foam cell Anatomy 0.000 description 2
- 239000004088 foaming agent Substances 0.000 description 2
- 239000008187 granular material Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 229910001338 liquidmetal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- 239000004793 Polystyrene Substances 0.000 description 1
- 239000006004 Quartz sand Substances 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 210000004027 cell Anatomy 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000010115 full-mold casting Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 229910052755 nonmetal Inorganic materials 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 238000009958 sewing Methods 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G53/00—Conveying materials in bulk through troughs, pipes or tubes by floating the materials or by flow of gas, liquid or foam
- B65G53/04—Conveying materials in bulk pneumatically through pipes or tubes; Air slides
- B65G53/06—Gas pressure systems operating without fluidisation of the materials
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C23/00—Tools; Devices not mentioned before for moulding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C7/00—Patterns; Manufacture thereof so far as not provided for in other classes
- B22C7/02—Lost patterns
- B22C7/023—Patterns made from expanded plastic materials
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G53/00—Conveying materials in bulk through troughs, pipes or tubes by floating the materials or by flow of gas, liquid or foam
- B65G53/34—Details
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G53/00—Conveying materials in bulk through troughs, pipes or tubes by floating the materials or by flow of gas, liquid or foam
- B65G53/34—Details
- B65G53/36—Arrangements of containers
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
Abstract
The invention discloses a multipoint feeding and conveying system for a lost foam copolymer, which comprises a curing bin, a conveying pipe and an intermediate bin which are sequentially connected, wherein one end of the conveying pipe is communicated with the bottom of the curing bin, the other end of the conveying pipe is communicated with the top of the intermediate bin, a fan is further connected in series on a conveying path of the conveying pipe, and the fan provides conveying power for the curing bin to the intermediate bin. The conveying system can be used for curing the pre-foamed EPS foam particles, so that the curing requirement of the EPS foam particles before foaming is met, and the EPS foam particles can be effectively conveyed; further through setting up the multilayer bag body, carry out the layering pay-off to the EPS bubble grain in the curing feed bin to the curing time of inside EPS bubble grain is prolonged, in order to guarantee the EPS bubble grain curing effect homogeneity of carrying.
Description
Technical Field
The invention belongs to the technical field of casting, and particularly relates to a multipoint feeding and conveying system for lost foam copolymer.
Background
The casting is a metal molded article obtained by various casting methods, namely, smelted liquid metal is poured into a casting mould prepared in advance by pouring, injection, suction or other casting methods, and the casting is cooled and then polished to obtain the article with certain shape, size and performance. The lost foam casting (also called full mold casting) is a novel casting method for forming castings after wax or foam models with the size and shape similar to those of castings are bonded and combined into model clusters, are brushed with fireproof paint and dried, are buried in dry quartz sand for vibration molding, are poured under negative pressure, enable the models to be gasified, enable liquid metal to occupy the positions of the models, and are solidified and cooled.
The EPS (polystyrene) commonly used for lost foam casting can be used for manufacturing a model after prefoaming and curing processes, a certain amount of foaming agent and water vapor are reserved in EPS foam particles after prefoaming at home and abroad at present, after the EPS foam particles exit a reaction kettle, the EPS foam particles are condensed into liquid, the liquid foaming agent is dissolved into the EPS, the pressure in the foam particles is rapidly reduced, negative pressure (vacuum state) is generated in foam holes in the EPS foam particles, and foam holes collapse and are easy to deform. In order to make the inside of the foam particles free from negative pressure, the EPS foam particles are usually kept still in a storage bin for at least 12 hours, so that the pressure of the foam cells is stabilized, and the process of stabilizing the pressure of the foam cells is called curing.
Because curing needs longer time, the EPS of prefoaming can't directly use, and traditional point-to-point material conveying system can't be applied to lost foam casting, need design dedicated material conveying system in order to solve the problem that EPS prefoamed can't directly use.
Disclosure of Invention
The present invention addresses the problems with the prior art described above by providing a lost foam copolymer multipoint delivery system.
The multipoint feeding and conveying system for the lost foam copolymer comprises a curing bin, a conveying pipe and an intermediate bin which are sequentially connected, wherein one end of the conveying pipe is communicated with the bottom of the curing bin, the other end of the conveying pipe is communicated with the top of the intermediate bin, a fan is further connected in series on a conveying path of the conveying pipe, and the fan provides conveying power for the curing bin to the intermediate bin.
Further, the curing bin is provided with a plurality of curing bins.
Further, the curing bin comprises a supporting frame and a material bag, and the material bag is fixed on the supporting frame.
Further, the material bag is provided with a plurality of layers of bag bodies at intervals, each layer of bag body forms a conical material leakage hopper from the bottom to the center of the material bag, the material leakage hopper in the secondary outer layer is provided with a side material outlet, and the side material outlet is provided with a baffle.
Further, the light framework is arranged at the edge of the baffle curtain.
Further, the multi-layer bag bodies of the material bag are distributed along the width or length direction of the material bag.
Further, the multi-layer bag bodies of the material bags are distributed in a coaxial annular mode by outwards diffusing the center of the material bags.
The beneficial effects of the invention are as follows: the conveying system can be used for curing the pre-foamed EPS foam particles, so that the curing requirement of the EPS foam particles before foaming is met, and the EPS foam particles can be effectively conveyed; further through setting up the multilayer bag body, carry out the layering pay-off to the EPS bubble grain in the curing feed bin to the curing time of inside EPS bubble grain is prolonged, in order to guarantee the EPS bubble grain curing effect homogeneity of carrying.
Drawings
FIG. 1 is a schematic diagram of a multi-point feed conveyor system;
FIG. 2 is a schematic structural view of a curing silo;
FIG. 3 is a schematic view of a multi-layer structure of a pouch;
FIG. 4 is a schematic view of a multi-layered bag body distributed along the width or length direction of the material bag;
FIG. 5 is a schematic view of the structure of the multilayer bag body with the center of the bag outwards diffusing coaxial annular distribution;
FIG. 6 is a schematic structural view of a discharge port on the upper side of the hopper;
FIG. 7 is a schematic view of the attachment of a lightweight frame to the edge of a curtain.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
Examples
As shown in fig. 1, a schematic structural view of the multipoint delivery system is shown, which is a bottom view. The conveying system in the figure comprises a curing bin 10 and an intermediate bin 20, wherein the curing bin 10 and the intermediate bin 20 are connected through a conveying pipe 30, and the top of the curing bin 10 is connected to a discharge port of a pre-foaming device (not shown in the figure), so that pre-foamed EPS particles are directly conveyed into the curing bin 10 for curing.
The bottom of curing feed bin 10 is provided with the discharge gate, and the EPS granule that ripens can be followed the discharge gate output of bottom and carried to the top feed inlet of intermediate bin 20 through conveyer pipe 30, and the bottom of intermediate bin 20 also has the discharge gate, and this discharge gate can directly carry the EPS granule to foaming machine in the foaming formation mould.
The EPS particles in the curing bin 10 are conveyed by the fan 40, the fan 40 is arranged at the end of the conveying pipe 30 and is communicated with the conveying pipe 30, and positive pressure air flow is formed in the conveying pipe 30 by the fan 40, so that the EPS particles falling from the discharge hole at the bottom of the curing bin 10 are conveyed into the intermediate bin 20.
In fig. 1, the number of curing bins 10 is eight, so as to achieve the purpose of multi-point feeding and conveying of the curing bins 10. The curing bins 10 are not limited to being set to eight, but may be set to other different numbers according to actual conditions.
As shown in fig. 2, a schematic structural diagram of the curing barn 10 is shown. The curing bin 10 comprises a supporting frame 11 and a material bag 12, wherein the supporting frame 11 is of a frame structure, can be manufactured by welding and fixing a metal rod or by fixing a bolt, and the opening of the material bag 12 and the bag wall are fixed with the supporting frame 11, so that the material bag 12 is unfolded to contain pre-foamed EPS particles.
As shown in fig. 3 to 5, the pouch 12 is designed in a multi-layered structure, which may be a multi-layered structure disposed at intervals along the width or length direction of the pouch 12, as shown in fig. 4, which is a view of the feed inlet; it is also possible to obtain a coaxial annular multilayer structure by diffusion out of the centre of the pocket 12, as shown in fig. 5, which is a view of the feed inlet. Under this structure, the bag body of inlayer is fixed on outer bag body through the taut rope that the ring distributes. On the basis of the multilayer structure, layered discharging can be realized, namely EPS particles stored in the outer layer can be discharged preferentially through the discharging hole. Since the curing of the EPS foam needs to be exposed to air to stabilize the cell pressure, the curing speed of the EPS foam in the outer layer is faster when the bag 12 is filled with the EPS foam. Therefore, the material bag 12 is designed into a multi-layer structure, and the EPS foam particles on the outer layer are preferentially conveyed, so that the curing time of the internal EPS foam particles is prolonged, and the uniformity of the curing effect of the conveyed EPS foam particles is ensured; when the EPS foam particles of the outer layer are completely conveyed, the EPS foam particles of the secondary outer layer are completely exposed to the air, and the circulation is performed.
The multi-layer structure of the material bag 12 can be designed into a specific layer number according to the actual working conditions, such as five layers or three layers in the embodiment. As shown in fig. 6, the bottom of the material bag 12 is formed into a cone-shaped material leakage hopper 13 step by step from outside to inside, the bottom of the material leakage hopper 13 on the outermost layer is directly connected with the material outlet of the material bag 12, the material leakage hopper 13 on the secondary outer layer inwards is provided with a side material outlet 14, a baffle 15 is arranged at the side material outlet 14, the top of the baffle 15 is fixed on the material leakage hopper 13 in a sewing or bonding mode, and the baffle 15 is arranged at the outer side of the side material outlet 14, so that the baffle 15 can hang down under the action of gravity. When the material bag 12 is idle, the baffle 15 is naturally hung down by gravity, and when EPS foam particles are filled in the material bag 12, the material bag is preferentially filled in the outermost material storage cavity, so that the baffle 15 can be pressed towards the side discharge port 14 through the filling effect of the EPS foam particles until the EPS foam particles are filled in the outermost material leakage hopper 13, the baffle 15 is completely attached to the side discharge port 14, the secondary outer material storage cavity is sealed, and the EPS foam particles are sequentially filled from outside to inside. When outward feeding is needed, the baffle 15 of the secondary outer layer cannot be opened due to the filling effect of the outermost layer, so that EPS foam particles of the outermost layer slide into the discharge port under the gravity effect preferentially until the EPS foam particles at the baffle 15 are conveyed, the baffle 15 can be opened, and the EPS foam particles of the secondary outer layer can slide into the hopper 13 of the outermost layer for conveying, and the circulation is performed.
As shown in fig. 7, a light frame 16, preferably made of a non-metal material, such as carbon fiber, is disposed at the edge of the baffle 15, so that the baffle 15 maintains a stable open state to cover the side discharge opening 14 by disposing the light frame 16, and the baffle 15 is prevented from being pressed into the side discharge opening 14 after the hopper 13 is filled with EPS foam particles.
The top of the bag 12 may be provided with an angularly adjustable feed conveyor pipe (not shown) so that the EPS foam may be filled into the storage cavities of the different layers by adjusting the angle of the feed conveyor pipe. The structure of the feed conveyor pipe is not described in detail in this embodiment, and any feed conveyor pipe that can achieve this function in the prior art may be used.
The above embodiments are only for illustrating the technical solution of the present invention, and are not limiting.
Claims (5)
1. The vanishing mould copolymer multipoint feeding and conveying system is characterized by comprising a curing bin (10), a conveying pipe (30) and an intermediate bin (20) which are sequentially connected, wherein one end of the conveying pipe (30) is communicated with the bottom of the curing bin (10), the other end of the conveying pipe (30) is communicated with the top of the intermediate bin (20), a fan (40) is further connected in series on a conveying route of the conveying pipe (30), and the fan (40) provides conveying power for the curing bin (10) to the intermediate bin (20);
the curing bin (10) comprises a supporting frame (11) and a material bag (12), and the material bag (12) is fixed on the supporting frame (11);
The material bags (12) are provided with a plurality of layers of bag bodies at intervals, each layer of bag body forms a cone-shaped material leakage hopper (13) from the bottom to the center of the material bag (12), each material leakage hopper (13) in the secondary outer layer is provided with a side discharge hole (14), and a baffle curtain (15) is arranged at the side discharge hole (14);
The baffle curtain (15) is arranged at the outer side of the side discharge hole (14) so that the baffle curtain (15) can hang down under the action of gravity; when the material bag (12) is idle, the baffle curtain (15) naturally hangs down by gravity, when the EPS foam particles are filled in the material bag (12), the baffle curtain (15) can be pressed to the side discharge hole (14) through the filling effect of the EPS foam particles, until the EPS foam particles are filled in the leakage hopper (13) of the outermost layer, the baffle curtain (15) is completely attached to the side discharge hole (14), the storage cavity of the secondary outer layer is sealed, so that the EPS foam particles are sequentially filled from outside to inside, when the EPS foam particles are required to be fed outwards, the baffle curtain (15) of the secondary outer layer cannot be opened, so that the EPS foam particles of the outermost layer slide into the discharge hole under the action of gravity until the EPS foam particles at the position of the baffle curtain (15) are conveyed, the baffle curtain (15) can be opened, and the EPS foam particles of the secondary outer layer can slide into the leakage hopper (13) of the outermost layer to be conveyed, and thus the circulation is realized.
2. The lost foam copolymer multipoint feed conveyor system according to claim 1, wherein the curing bins (10) are provided in plurality.
3. The lost foam copolymer multipoint feed conveyor system according to claim 1, wherein the curtain (15) is provided with a lightweight skeleton (16) at the edge.
4. The lost foam copolymer multipoint feed conveyor system according to claim 1, wherein the multi-layer bag bodies of the bag (12) are distributed along the width or length direction of the bag (12).
5. The lost foam copolymer multipoint delivery system according to claim 1, wherein the multilayer bag body of the bag (12) is distributed in a concentric annular shape with the center of the bag (12) spreading outwards.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210198940.0A CN114476685B (en) | 2022-03-02 | 2022-03-02 | Lost foam copolymer multipoint feeding and conveying system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210198940.0A CN114476685B (en) | 2022-03-02 | 2022-03-02 | Lost foam copolymer multipoint feeding and conveying system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114476685A CN114476685A (en) | 2022-05-13 |
| CN114476685B true CN114476685B (en) | 2024-05-17 |
Family
ID=81483740
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210198940.0A Active CN114476685B (en) | 2022-03-02 | 2022-03-02 | Lost foam copolymer multipoint feeding and conveying system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114476685B (en) |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU3231771A (en) * | 1970-09-01 | 1973-04-19 | Unifoam A.G. | Improvements in or relating tothe production of polymeric foam |
| SU975430A1 (en) * | 1981-06-12 | 1982-11-23 | Научная Часть Сибирского Научно-Исследовательского И Проектного Института Цементной Промышленности | Installation for producing foamed plastic |
| CN101722588A (en) * | 2008-10-29 | 2010-06-09 | 株式会社技术高 | drying hopper |
| CN203046043U (en) * | 2012-12-18 | 2013-07-10 | 天津市奥新海塑料制品有限公司 | Foamed plastic conveying device of curing machine |
| CN203753980U (en) * | 2013-06-14 | 2014-08-06 | 新疆蓝山屯河新材料有限公司 | EPS particle conveying device |
| CN104944162A (en) * | 2015-05-29 | 2015-09-30 | 遵义荣盛包装材料有限公司 | Automatic conveying system for expandable polystyrene |
| CN105936104A (en) * | 2016-06-14 | 2016-09-14 | 天津禹神节能保温材料有限公司 | Double-layer polystyrene foaming and charging system |
| CN107471523A (en) * | 2017-08-29 | 2017-12-15 | 芜湖美威包装品有限公司 | It is ripening device used to pack foam particle |
| CN108328337A (en) * | 2018-03-19 | 2018-07-27 | 农业部南京农业机械化研究所 | Pressure sending type Pneumatic conveyer |
| CN207726069U (en) * | 2017-12-26 | 2018-08-14 | 承德鸿城节能科技有限公司 | Ventilation drying type EPS feed bins |
| CN209536461U (en) * | 2018-12-26 | 2019-10-25 | 四川中蓝国塑新材料科技有限公司 | A kind of bisphenol-A Pneumatic conveyer for polycarbonate industrialized production |
| CN213260700U (en) * | 2020-09-22 | 2021-05-25 | 杭州富阳联发消失模成型设备有限公司 | Distribution device for bead curing |
-
2022
- 2022-03-02 CN CN202210198940.0A patent/CN114476685B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU3231771A (en) * | 1970-09-01 | 1973-04-19 | Unifoam A.G. | Improvements in or relating tothe production of polymeric foam |
| SU975430A1 (en) * | 1981-06-12 | 1982-11-23 | Научная Часть Сибирского Научно-Исследовательского И Проектного Института Цементной Промышленности | Installation for producing foamed plastic |
| CN101722588A (en) * | 2008-10-29 | 2010-06-09 | 株式会社技术高 | drying hopper |
| CN203046043U (en) * | 2012-12-18 | 2013-07-10 | 天津市奥新海塑料制品有限公司 | Foamed plastic conveying device of curing machine |
| CN203753980U (en) * | 2013-06-14 | 2014-08-06 | 新疆蓝山屯河新材料有限公司 | EPS particle conveying device |
| CN104944162A (en) * | 2015-05-29 | 2015-09-30 | 遵义荣盛包装材料有限公司 | Automatic conveying system for expandable polystyrene |
| CN105936104A (en) * | 2016-06-14 | 2016-09-14 | 天津禹神节能保温材料有限公司 | Double-layer polystyrene foaming and charging system |
| CN107471523A (en) * | 2017-08-29 | 2017-12-15 | 芜湖美威包装品有限公司 | It is ripening device used to pack foam particle |
| CN207726069U (en) * | 2017-12-26 | 2018-08-14 | 承德鸿城节能科技有限公司 | Ventilation drying type EPS feed bins |
| CN108328337A (en) * | 2018-03-19 | 2018-07-27 | 农业部南京农业机械化研究所 | Pressure sending type Pneumatic conveyer |
| CN209536461U (en) * | 2018-12-26 | 2019-10-25 | 四川中蓝国塑新材料科技有限公司 | A kind of bisphenol-A Pneumatic conveyer for polycarbonate industrialized production |
| CN213260700U (en) * | 2020-09-22 | 2021-05-25 | 杭州富阳联发消失模成型设备有限公司 | Distribution device for bead curing |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114476685A (en) | 2022-05-13 |
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