CN103350505A - Carbon-fiber cold-hot integrally forming furnace base - Google Patents
Carbon-fiber cold-hot integrally forming furnace base Download PDFInfo
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- CN103350505A CN103350505A CN2013102502686A CN201310250268A CN103350505A CN 103350505 A CN103350505 A CN 103350505A CN 2013102502686 A CN2013102502686 A CN 2013102502686A CN 201310250268 A CN201310250268 A CN 201310250268A CN 103350505 A CN103350505 A CN 103350505A
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Abstract
The invention discloses a carbon-fiber cold-hot integrally forming furnace base. The carbon-fiber cold-hot integrally forming furnace base comprises a support, wherein one side of the support is provided with an oil tank; the upper end of the oil tank is provided with an electric control box; the support is provided with a surface plate; a forming bench is arranged on the upper end surface of the surface plate, and a vertical oil cylinder is arranged on the lower end surface of the surface plate; two guiding columns which correspond to each other are arranged on two sides of the forming bench respectively; two ends of each guiding column penetrate through an upper cover plate and the surface plate respectively and fixed by nuts; an upper template is arranged on the lower end surface of the upper cover plate; a plurality of hot-circulating-oil channels and a plurality of cold-circulating-oil channels are arranged at intervals in both the upper template and the forming bench; the hot-circulating-oil channels and the cold-circulating-oil channels are connected with an oil tank through a hot-circulating-oil filling pipeline and a cold-circulating-oil filling pipeline. The heat-conducting oil is filled alternatively through the hot-circulating-oil filling pipeline and the cold-circulating-oil filling pipeline. After the temperature of the heat-conducting oil is increased for a set time, the hot conducting oil is removed through a transfer switch, and the cooling oil is filled. The temperature of the heat-conducting oil is kept stable in a heating process and can be heated by sections.
Description
Technical field
The present invention relates to the making apparatus of carbon fiber product, particularly a kind of carbon fiber cold-hot integrated forming furnace table.
Background technology
At present, the upper shaping table in market mostly is the working method of single hot forming or cold forming, because the unicity of working method, so that can not satisfy client's higher requirement, carbon fiber forming furnace table on the market has following shortcoming: 1, forming furnace table is when the heating carbon fiber product, temperature is higher, and a dead lift causes potential safety hazard when cooling off easily; 2, when the heating carbon fiber product, heat owing in the uncontrollable scope in appointment of temperature, so that inferior quality after the carbon fiber product typing, 3, existing carbon fiber forming furnace table only has black furnace refrigerating function or hot stove heating function, and the board floor space is large, and cost is high.
Summary of the invention
The objective of the invention is the defects for prior art, provide a kind of and do not need a dead lift, reduce potential safety hazard and improve product quality, can reach again the carbon fiber cold-hot integrated forming furnace table of control oil cylinder stroke.
For solving the defects of prior art, the technical scheme that the present invention will solve is: a kind of carbon fiber cold-hot integrated forming furnace table, comprise a support, one side of described support is provided with a fuel tank, described fuel tank upper end is provided with an electric cabinet, described support is provided with deck plate, the upper surface of described deck plate is provided with workbench, the lower surface of described deck plate is provided with a vertical oil cylinder, the output shaft of described vertical oil cylinder is arranged in the middle part of described deck plate and is connected with described workbench, described vertical oil cylinder is electrically connected with single-chip microcomputer, the both sides of described workbench are respectively equipped with two corresponding guide pillars, the two ends of described guide pillar are arranged in respectively upper cover plate and described deck plate, and fix by nut, the lower surface of described upper cover plate is provided with a cope match-plate pattern, be respectively equipped with thermal cycle oil duct and the cold circulation oil duct of a plurality of installation conduction oils and cold oil in described cope match-plate pattern and the described moulding platen, be respectively equipped with the thermometric needle installing hole that thermometric needle is installed in described cope match-plate pattern and the described workbench, described thermometric needle is electrically connected with described electric cabinet, described thermal cycle oil duct be connected the circulation oil duct by the thermal cycle oil filling pipeline be connected the circulation oil filling pipeline and be connected with described fuel tank.
A kind of improvement as carbon fiber cold-hot integrated forming furnace table of the present invention, described thermal cycle oil filling pipeline comprises hot oiling groove, be provided with successively gas collecting jar with ground-on cover plate on the oil-inlet end of described hot oiling groove and the pipeline that described workbench is connected, hot recycle pump, heater, pressure switch, the first sensing rod for temperature and the first pneumatic operated valve, the pipeline of described gas collecting jar with ground-on cover plate and hot recycle pump is provided with the first ball valve and the second ball valve, described the first ball valve is connected with described hot oiling groove, the end of described the second ball valve is provided with the first row hydraulic fluid port, the pipeline of described hot recycle pump and described heater is provided with Pressure gauge, described hot oiling groove is provided with the first repairing mouth, the first oil spilling mouth and the first liquid-level switch, the return line of described workbench is connected with described gas collecting jar with ground-on cover plate.
A kind of improvement as carbon fiber cold-hot integrated forming furnace table of the present invention, described cold circulation oil filling pipeline comprises cold oiling groove, be provided with successively the 3rd ball valve on described cold oiling groove and the pipeline that described workbench is connected, cold circulating pump, heat exchanger, the second sensing rod for temperature and the second pneumatic operated valve, the pipeline of described the 3rd ball valve and described cold circulating pump is provided with the 4th ball valve, the end of described the 4th ball valve is provided with the second row hydraulic fluid port, described heat exchanger is provided with cold water and goes out pipeline and cold water inlet pipe road, described cold water inlet pipe road is provided with y-type filter and the 5th ball valve, described cold water goes out pipeline and is provided with the 6th ball valve and check-valves, described cold oiling groove is provided with the second row hydraulic fluid port, the second oil spilling mouth and the second liquid-level switch, the return line of described workbench is connected with the return line of described cold oiling groove.
As a kind of improvement of carbon fiber cold-hot integrated forming furnace table of the present invention, be interval with a plurality of interconnective cavitys in the cavity of described upper cover plate.
As a kind of improvement of carbon fiber cold-hot integrated forming furnace table of the present invention, described workbench is two-layered, formed.
As a kind of improvement of carbon fiber cold-hot integrated forming furnace table of the present invention, be interval with 12 interconnective cavitys in the cavity of described upper cover plate.
As a kind of improvement of carbon fiber cold-hot integrated forming furnace table of the present invention, the cross-sectional area of described cope match-plate pattern is identical with the cross-sectional area of described workbench.
As a kind of improvement of carbon fiber cold-hot integrated forming furnace table of the present invention, be respectively equipped with 9 thermal cycle oil duct and cold circulation oil ducts that conduction oil and cold oil are installed in described cope match-plate pattern and the described moulding platen.
Compared with prior art, advantage of the present invention is: the present invention adopts single-chip microcomputer, can effectively control oil cylinder stroke, also can control the kinetic energy that oil cylinder rising or falling speed and oil cylinder produce; And by the thermal cycle oil duct in cope match-plate pattern and the workbench, conduction oil in the heat hot circulation oil duct, adopt thermometric needle to survey the temperature of cope match-plate pattern and workbench, by thermal cycle oil filling pipeline and cold circulation oil filling pipeline, alternately filling heat-conductive is oily mutually, after the temperature of conduction oil rises to setting-up time, by change-over switch the conduction oil of heat is taken away, cold oil reinjects, temperature held stationary after the heat-conducting oil heating, can stopped heating, thus reach energy-conservation purpose, greatly improved the quality of carbon fiber product thermocompression forming.The tower structure that the present invention simplifies had both alleviated the weight of carbon fiber forming furnace table, made board more compact, had also reached result of use.
Description of drawings
Fig. 1 is structural representation of the present invention.
Fig. 2 is A-A cutaway view among Fig. 1.
Fig. 3 is the oil filling pipeline structural representation.
The specific embodiment
Below just the invention will be further described with reference to the accompanying drawings.
As shown in Figure 1, a kind of carbon fiber cold-hot integrated forming furnace table, comprise a support 1, one side of support 1 is provided with a fuel tank 2, fuel tank 2 upper ends are provided with an electric cabinet 3, support 1 is provided with deck plate 4, the upper surface of deck plate 4 is provided with workbench 5, the lower surface of deck plate 4 is provided with a vertical oil cylinder 6, the output shaft of vertical oil cylinder 6 is arranged in the middle part of deck plate 4 and is connected with workbench 5, vertical oil cylinder 6 is electrically connected with single-chip microcomputer, the both sides of workbench 5 are respectively equipped with two corresponding guide pillars 7, the two ends of guide pillar 7 are arranged in respectively upper cover plate 8 and deck plate 4, and fixing by nut 9, the lower surface of upper cover plate 8 is provided with a cope match-plate pattern 10, be respectively equipped with 9 thermal cycle oil duct 11 and cold circulation oil ducts 12 that conduction oils and cold oil are installed in cope match-plate pattern 10 and workbench 5 plates, be respectively equipped with the thermometric needle installing hole 13 that thermometric needle is installed in cope match-plate pattern 10 and the workbench 5, thermometric needle is electrically connected with electric cabinet 3, thermal cycle oil duct 11 be connected circulation oil duct 12 by thermal cycle oil filling pipeline 15 be connected circulation oil filling pipeline 16 and be connected with fuel tank 2.
As shown in Figure 3, thermal cycle oil filling pipeline 15 comprises hot oiling groove 151, be provided with successively gas collecting jar with ground-on cover plate 152 on the oil-inlet end of hot oiling groove 151 and the pipeline that described workbench 5 is connected, hot recycle pump 153, heater 154, pressure switch 155, the first sensing rod for temperature 156 and the first pneumatic operated valve 157, gas collecting jar with ground-on cover plate 152 is provided with the first ball valve 158 and the second ball valve 159 with the pipeline of hot recycle pump 153, the first ball valve 158 is connected with hot oiling groove 151, the end of the second ball valve 159 is provided with first row hydraulic fluid port 150, hot recycle pump 153 is provided with Pressure gauge 1501 with the pipeline of heater 154, hot oiling groove 151 is provided with the first repairing mouth 1502, the first oil spilling mouth 1503 and the first liquid-level switch 1504, the return line of workbench 5 is connected with gas collecting jar with ground-on cover plate 152.When needing hot forming, cold circulation oil filling pipeline 16 is closed, and by thermal cycle oil filling pipeline 15, oil is transported in the shaping table 5 by heater 154 heating, can carry out continuous hot forming work by hot recycle pump 153, when temperature is raised to one regularly, the first sensing rod for temperature 156 can measure temperature, can stopped heating, heating just can reheat when temperature is low, not rapidly heating and cooling of workbench 5 utilize the characteristic of oil, so that can be played energy-conservation purpose like this.
Cold circulation oil filling pipeline 16 comprises cold oiling groove 161, be provided with successively the 3rd ball valve 162 on cold oiling groove 161 and the pipeline that workbench 5 is connected, cold circulating pump 163, heat exchanger 164, the second sensing rod for temperature 165 and the second pneumatic operated valve 166, the 3rd ball valve 162 is provided with the 4th ball valve 167 with the pipeline of cold circulating pump 163, the end of the 4th ball valve 167 is provided with second row hydraulic fluid port 168, heat exchanger 164 is provided with cold water and goes out pipeline 1641 and cold water inlet pipe road 1642, cold water inlet pipe road 1642 is provided with y-type filter 1643 and the 5th ball valve 1644, cold water goes out pipeline 1641 and is provided with the 6th ball valve 1645 and check-valves 1646, cold oiling groove 161 is provided with second row hydraulic fluid port 1647, the second oil spilling mouth 1648 and the second liquid-level switch 160, the return line of workbench 5 is connected with the return line of cold oiling groove 161.When needing cold forming, thermal cycle oil filling pipeline 15 is closed, by cold circulation oil filling pipeline 16, oil by cold circulating pump 163 continuous send into shaping table 5, can carry out continuous work.
Wherein, be interval with 12 interconnective cavitys 14 in the cavity of upper cover plate 8.The material that upper cover plate 8 is used greatly reduces, and has both alleviated the weight of carbon fiber forming furnace table, makes board more compact, has also reached result of use.
The workbench 5 that the present invention adopts is two-layered, formed.Guaranteed the flatness of workbench 5 table tops for two-layered, formed 5, smooth table top can effectively guarantee the correct folding of mould, guarantees precision and the uniformity of product.
The cross-sectional area of cope match-plate pattern 10 is identical with the cross-sectional area of workbench 5.The identical cope match-plate pattern of cross-sectional area 10 and workbench 5 can effectively guarantee the correct folding of mould, guarantee precision and the uniformity of product.
Heating process of the present invention is: at first by electric cabinet 3 control fuel tanks 2, conduction oil in the fuel tank 2 is injected in thermal cycle oil duct 11 and the cold circulation oil duct 12, after filling with conduction oil thermal cycle oil duct 11 is heated, conduction oil in the heat hot circulation oil duct 11, after conduction oil enters circulation system, can be stage by stage, heat up by the programme-control in the single-chip microcomputer, reach the time of setting when temperature after, pass through change-over switch, take thermal conductance oil away, then enter cold circulation oil duct 12 by cold oil, make 11 coolings of thermal cycle oil duct, adopt thermometric needle to survey the temperature of cope match-plate pattern 10 and workbench 5, temperature held stationary after the heat-conducting oil heating can stopped heating, thereby reaches energy-conservation purpose.
The according to the above description announcement of book and instruction, those skilled in the art in the invention can also carry out suitable change and modification to above-mentioned embodiment.Therefore, the specific embodiment that discloses and describe above the present invention is not limited to also should fall in the protection domain of claim of the present invention modifications and changes more of the present invention.In addition, although used some specific terms in this specification, these terms do not consist of any restriction to the present invention just for convenience of description.
Claims (8)
1. carbon fiber cold-hot integrated forming furnace table, comprise a support (1), one side of described support (1) is provided with a fuel tank (2), described fuel tank (2) upper end is provided with an electric cabinet (3), it is characterized in that, described support (1) is provided with deck plate (4), the upper surface of described deck plate (4) is provided with workbench (5), the lower surface of described deck plate (4) is provided with a vertical oil cylinder (6), the output shaft of described vertical oil cylinder (6) is arranged in the middle part of described deck plate (4) and is connected with described workbench (5), described vertical oil cylinder (6) is electrically connected with single-chip microcomputer, the both sides of described workbench (5) are respectively equipped with two corresponding guide pillars (7), the two ends of described guide pillar (7) are arranged in respectively upper cover plate (8) and described deck plate (4), and fixing by nut (9), the lower surface of described upper cover plate (8) is provided with a cope match-plate pattern (10), be respectively equipped with thermal cycle oil duct (11) and the cold circulation oil duct (12) of a plurality of installation conduction oils and cold oil in described cope match-plate pattern (10) and described workbench (5) plate, be respectively equipped with the thermometric needle installing hole (13) that thermometric needle is installed in described cope match-plate pattern (10) and the described workbench (5), described thermometric needle is electrically connected with described electric cabinet (3), described thermal cycle oil duct (11) be connected circulation oil duct (12) by thermal cycle oil filling pipeline (15) be connected circulation oil filling pipeline (16) and be connected with described fuel tank (2).
2. carbon fiber cold-hot integrated forming furnace table according to claim 1, it is characterized in that, described thermal cycle oil filling pipeline (15) comprises hot oiling groove (151), be provided with successively gas collecting jar with ground-on cover plate (152) on the oil-inlet end of described hot oiling groove (151) and the pipeline that described workbench (5) is connected, hot recycle pump (153), heater (154), pressure switch (155), the first sensing rod for temperature (156) and the first pneumatic operated valve (157), described gas collecting jar with ground-on cover plate (152) is provided with the first ball valve (158) and the second ball valve (159) with the pipeline of hot recycle pump (153), described the first ball valve (158) is connected with described hot oiling groove (151), the end of described the second ball valve (159) is provided with first row hydraulic fluid port (150), described hot recycle pump (153) is provided with Pressure gauge (1501) with the pipeline of described heater (154), described hot oiling groove (151) is provided with the first repairing mouth (1502), the first oil spilling mouth (1503) and the first liquid-level switch (1504), the return line of described workbench (5) is connected with described gas collecting jar with ground-on cover plate (152).
3. carbon fiber cold-hot integrated forming furnace table according to claim 1, it is characterized in that, described cold circulation oil filling pipeline (16) comprises cold oiling groove (161), be provided with successively the 3rd ball valve (162) on described cold oiling groove (161) and the pipeline that described workbench (5) is connected, cold circulating pump (163), heat exchanger (164), the second sensing rod for temperature (165) and the second pneumatic operated valve (166), described the 3rd ball valve (162) is provided with the 4th ball valve (167) with the pipeline of described cold circulating pump (163), the end of described the 4th ball valve (167) is provided with second row hydraulic fluid port (168), described heat exchanger (164) is provided with cold water and goes out pipeline (1641) and cold water inlet pipe road (1642), described cold water inlet pipe road (1642) is provided with y-type filter (1643) and the 5th ball valve (1644), described cold water goes out pipeline (1641) and is provided with the 6th ball valve (1645) and check-valves (1646), described cold oiling groove (161) is provided with second row hydraulic fluid port (1647), the second oil spilling mouth (1648) and the second liquid-level switch (160), the return line of described workbench (5) is connected with the return line of described cold oiling groove (161).
4. carbon fiber cold-hot integrated forming furnace table according to claim 1 is characterized in that, is interval with a plurality of interconnective cavitys (14) in the cavity of described upper cover plate (8).
5. carbon fiber forming furnace table according to claim 1 is characterized in that, described workbench (5) is two-layered, formed.
6. carbon fiber cold-hot integrated forming furnace table according to claim 2 is characterized in that, is interval with 12 interconnective cavitys (14) in the cavity of described upper cover plate (8).
7. carbon fiber cold-hot integrated forming furnace table according to claim 1 is characterized in that, the cross-sectional area of described cope match-plate pattern (10) is identical with the cross-sectional area of described workbench (5).
8. carbon fiber cold-hot integrated forming furnace table according to claim 1, it is characterized in that, be respectively equipped with 9 thermal cycle oil duct (11) and cold circulation oil ducts (12) that conduction oils and cold oil are installed in the plate of described cope match-plate pattern (10) and described workbench (5).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310250268.6A CN103350505B (en) | 2013-06-24 | 2013-06-24 | A kind of carbon fiber cold-hot integrated forming furnace table |
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| CN201310250268.6A CN103350505B (en) | 2013-06-24 | 2013-06-24 | A kind of carbon fiber cold-hot integrated forming furnace table |
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| CN103350505A true CN103350505A (en) | 2013-10-16 |
| CN103350505B CN103350505B (en) | 2016-05-11 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113147003A (en) * | 2021-02-01 | 2021-07-23 | 苏州森特层压技术有限公司 | Carbon fiber composite board forming equipment |
| CN113405369A (en) * | 2021-06-29 | 2021-09-17 | 东莞市正文机械有限公司 | Carbon fiber cold and hot integrated forming control method |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0312254A2 (en) * | 1987-10-10 | 1989-04-19 | H Thomas Jewellers Of Park Lane Ltd | Forming thermo-plastics materials |
| US5066351A (en) * | 1987-05-20 | 1991-11-19 | The Boeing Company | Hot/cold press forming methods for shaping thermoformable materials |
| CN1735499A (en) * | 2003-01-10 | 2006-02-15 | 佳能股份公司 | Twin-sheet thermoforming of plastic fuel tanks |
| CN1947989A (en) * | 2005-10-14 | 2007-04-18 | 鸿富锦精密工业（深圳）有限公司 | Hot pressing formation machine |
| JP2007182035A (en) * | 2006-01-10 | 2007-07-19 | Calsonic Kansei Corp | Manufacturing method of vacuum-formed product |
| CN101791861A (en) * | 2010-04-17 | 2010-08-04 | 潘震州 | One-step molding device for double-layer thick plastic sheet and molding process thereof |
| CN203331405U (en) * | 2013-06-24 | 2013-12-11 | 东莞市正文机械有限公司 | Cold-hot integral forming furnace table for carbon fibers |
-
2013
- 2013-06-24 CN CN201310250268.6A patent/CN103350505B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5066351A (en) * | 1987-05-20 | 1991-11-19 | The Boeing Company | Hot/cold press forming methods for shaping thermoformable materials |
| EP0312254A2 (en) * | 1987-10-10 | 1989-04-19 | H Thomas Jewellers Of Park Lane Ltd | Forming thermo-plastics materials |
| CN1735499A (en) * | 2003-01-10 | 2006-02-15 | 佳能股份公司 | Twin-sheet thermoforming of plastic fuel tanks |
| CN1947989A (en) * | 2005-10-14 | 2007-04-18 | 鸿富锦精密工业（深圳）有限公司 | Hot pressing formation machine |
| JP2007182035A (en) * | 2006-01-10 | 2007-07-19 | Calsonic Kansei Corp | Manufacturing method of vacuum-formed product |
| CN101791861A (en) * | 2010-04-17 | 2010-08-04 | 潘震州 | One-step molding device for double-layer thick plastic sheet and molding process thereof |
| CN203331405U (en) * | 2013-06-24 | 2013-12-11 | 东莞市正文机械有限公司 | Cold-hot integral forming furnace table for carbon fibers |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113147003A (en) * | 2021-02-01 | 2021-07-23 | 苏州森特层压技术有限公司 | Carbon fiber composite board forming equipment |
| CN113405369A (en) * | 2021-06-29 | 2021-09-17 | 东莞市正文机械有限公司 | Carbon fiber cold and hot integrated forming control method |
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| CN103350505B (en) | 2016-05-11 |
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