CN102501362A - Method for manufacturing double-station plastic fuel tank - Google Patents
Method for manufacturing double-station plastic fuel tank Download PDFInfo
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- CN102501362A CN102501362A CN2011103643644A CN201110364364A CN102501362A CN 102501362 A CN102501362 A CN 102501362A CN 2011103643644 A CN2011103643644 A CN 2011103643644A CN 201110364364 A CN201110364364 A CN 201110364364A CN 102501362 A CN102501362 A CN 102501362A
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Abstract
The invention discloses a method for manufacturing a double-station plastic fuel tank. The method is used to simultaneously produce two plastic fuel tanks with different shapes on a double-station blow molding machine. The method which aims at the fuel tank manufacturing of small batch and kind variety can obviously improve the production efficiency, and the method which allows two fuel tanks with different shapes to be simultaneously produced has the advantages of reduction of the double investment of tool dies and processing equipment, die switching frequency reduction, and adjustment convenience of technological parameters; and the two fuel tanks can sue different cropping points to reduce the blank loss of a long blank for a short fuel tank.
Description
Technical field
The present invention relates to a kind of manufacturing approach of double-station plastic fuel tank.
Background technology
The manufacturing of plastic fuel tank at present; In order to improve output at double, adopt double-station plastic blowing machine that the same mould of two parafacies is installed simultaneously, double than single station production capacity; And every input expense of double is only than about high 1,000 ten thousand RMB of single station, so practicality is very extensive.But the fuel tank manufacturing approach of present double can only be produced the fuel tank of same shape; And for because of the fuel tank product lot quantity little, wide in variety; Need produce the situation of two difform plastic fuel tank simultaneously in order to enhance productivity, the fuel tank manufacturing approach of present double can not satisfy this requirement.
Summary of the invention
Technical problem to be solved by this invention provides a kind of manufacturing approach that can produce the double-station plastic fuel tank of two difform plastic fuel tank simultaneously.
In order to solve the problems of the technologies described above; The technical scheme that the present invention adopted is: a kind of manufacturing approach of double-station plastic fuel tank; Be used on double-station plastic blowing machine, producing simultaneously two difform fuel tank I and fuel tank II; Different blow mold I that is used for fuel tank I of two pairs and the blow mold II that is used for fuel tank II are installed on this double-station plastic blowing machine, and said manufacturing approach comprises the steps:
1) high density polyethylene (HDPE), bonding agent, obstruct material, broken feed back and look is female through in each self-corresponding storage vat of vacuum feeding system suction;
2) carry out dried to intercepting material (EVOH) and evengranular broken feed back, temperature is 80 ± 5 ℃, and is dry more than 4 hours;
3) open six extruders that have automatic weighing system, the qualitative and quantitative melt that extruder is extruded gets into co-extrusion die head through the screw rod of extruder, and the tubular type embryo I that forms a lower ending opening is hung vertically in the co-extrusion die head below;
4) the closed rising of material bar of stretching tight under on the blowing apparatus I is in wait state; When type embryo I blanking arrived setting value, type embryo robot moved in the die cavity of blow mold I through special-purpose sucker absorption-type embryo I, and the material bar that stretches tight stretches tight to two ends and reaches the position, and type embryo robot sucker is closed, the material folding plate closing; Is following pre-blowing device (pre-blowing device or blowing apparatus down down?) injection pressure is that 0.4MPa, flow are 2.2 compressed air in 2.75 seconds backward type embryos of time-delay, the pre-blowing time is 1.1 seconds, until making type embryo I be expanded to the perfect condition of moulding;
5) blow mold I grasps type embryo I from the left and right sides, and the blanking type embryo II that fuel tank II is waited in the co-extrusion die head below gets back in type embryo robot, and the product robot moves on to overlap in the blow mold I top gripping simultaneously;
6) air inlet needle in the blow mold I and return-air pin thrust in the type embryo I respectively and inwardly inject 0.8-1.0MPa compressed air and carry out high pressure blow-gas; Make the complete and die cavity applying of type embryo I; Typing back return-air pin begins to discharge fast hot gas, makes the pressure that keeps 0.5MPa in the fuel tank I casing at last;
7) stretching tight on the blowing apparatus II under, the material bar is closed to rise, and is in wait state, and when type embryo II blanking arrived setting value, type embryo robot moved in the die cavity of blow mold II through special-purpose sucker absorption-type embryo II; The material bar that stretches tight stretches tight to two ends and reaches the position; Type embryo robot sucker is closed, the material folding plate closing, and 3.8 seconds interior injection pressures of backward type embryo II of following pre-blowing device time-delay are that 0.38MPa, flow are 2.0 compressed air; The pre-blowing time is 0.36 second, until making type embryo II be expanded to the perfect condition of moulding;
8) blow mold II grasps type embryo II from the left and right sides; Type embryo robot gets back to the co-extrusion die head below and waits for next type embryo I blanking; Be provided with air inlet needle and return-air pin in the blow mold II, air inlet needle and return-air pin thrust in the type embryo II respectively and inwardly inject 0.8-1.0MPa compressed air and carry out high pressure blow-gas, make the complete and die cavity applying of type embryo II; Typing back return-air pin begins to discharge fast hot gas, makes the pressure that keeps 0.5MPa in the fuel tank II casing at last;
9) after the fuel tank I of moulding blows end; The product robot takes out fuel tank I, by the deburring personnel fuel tank I is carried out deburring, is placed on the conveyer belt that cooling blower is housed repairing the overlap up and down that removes; Make the overlap of high temperature reduce to 50-70 ℃ of entering disintegrating machine, be broken into homogeneous granules;
The fuel tank I that 10) will fix the limit is positioned on the water-cooled pattern shaping rack, and in fuel tank I injecting compressed air, fuel tank I sunk in 10 ℃ the cooling water, make evenly cooling and shaping fully of fuel tank I;
11) after the fuel tank II of moulding blows end; The product robot takes out fuel tank II, by the deburring personnel fuel tank II is carried out deburring, is placed on the conveyer belt that cooling blower is housed repairing the overlap up and down that removes; Make the overlap of high temperature reduce to 50-70 ℃ of entering disintegrating machine, be broken into homogeneous granules;
The fuel tank II that 12) will fix the limit is positioned on another water-cooled pattern shaping rack, and in fuel tank II injecting compressed air, fuel tank II sunk in 10 ℃ the cooling water, make evenly cooling and shaping fully of fuel tank II.
In step 6), blow mold I grasps type embryo I from the left and right sides, and two air inlet needle, return-air pin trigger respectively thrust; Wherein air inlet needle time-delay was thrust in 2.1 seconds, and another air inlet needle time-delay was thrust in 2.8 seconds, and the time-delay of return-air pin was thrust in 4 seconds; Two air inlet needle are thrust in the type embryo I fast, and in type embryo I, inject the compressed air of 0.8-1.0MPa, make the complete and die cavity applying of type embryo I; Thrust in the type embryo I after the time-delay of return-air pin arrives, and in type embryo I, blew 20 seconds behind the injecting compressed air, the return-air pin begins to discharge hot gas; The pressure that keeps 0.5MPa in the casing feeds 10 ℃ of cooling waters that pressure is 0.45MPa in the cooling water channel of blow mold I.
In step 10), the fuel tank I that fixes the limit is placed on the water-cooled pattern shaping rack, and in fuel tank I, injects the compressed air of 70mbar, sink in 10 ℃ the cooling water and kept 150 seconds, make evenly cooling and shaping fully of fuel tank I.
In step 8), blow mold II grasps type embryo II from the left and right sides, and air inlet needle, return-air pin trigger respectively thrust; Wherein the air inlet needle time-delay is 1.4 seconds, return-air pin time-delay 2.1 seconds, and time-delay is thrust respectively in the type embryo II after arriving fast; And in type embryo II, blew 20 seconds behind the injecting compressed air; The return-air pin begins to discharge hot gas, makes the pressure that keeps 0.5MPa in the fuel tank II casing, feeds 10 ℃ of cooling waters that pressure is 0.45MPa in the cooling water channel of blow mold II.
In step 12), the blow mold II that fixes the limit is placed on the water-cooled pattern, and in fuel tank II, injects the compressed air of 70mbar, sink in 10 ℃ the cooling water and kept 150 seconds, make evenly cooling and shaping fully of fuel tank II.
Type embryo I and type embryo II are six layers; Ratio from the inside to the outside is a high density polyethylene (HDPE): bonding agent: intercept material: bonding agent: broken feed back: high density polyethylene (HDPE)=36: 2.5: 2: 2.5: 44: 13, its ectomesoderm high density polyethylene (HDPE) and look mother stirred with 2 ‰ ratio through the vacuum feeding system.
The type embryo I average wall thickness of fuel tank I is 8.5mm, and the cycle of extruding is 69s; The type embryo II average thickness of fuel tank II is 6.5mm, and the cycle of extruding is 69s; Type embryo I vertically adopts 96 blankings on this basis, and type embryo II vertically adopts 77 blankings, equal adjustment type flake thickness degree separately about fuel tank I, fuel tank II vertical and horizontal.
The invention has the advantages that: the mould that 1, two kinds of difform fuel tanks are installed in the double-station plastic blowing machine simultaneously; Double is installed the present situation of two parafacies with mould in the change prior art; Can produce two difform plastic fuel tank simultaneously,, obviously can enhance productivity to product lot quantity fuel tank manufacturing little, wide in variety; Produce two kinds of difform fuel tanks simultaneously; Also reduced the input at double of moulds of industrial equipment and process equipment, reduced the switching times of mould, each technological parameter is easy to adjust; Two kinds of fuel tanks all can use different blank points to reduce the type embryo loss of elongated embryo short oil case;
2, a plurality of cooling blowers are housed on conveyer belt; Make the overlap material of high temperature interior at all seasons through opening the difference of blower fan quantity; Even the overlap material in summer of high temperature also can get into disintegrating machine with 50-70 ℃ temperature, thereby makes the broken material uniform particles, feed is stable;
3, barrier layer (EVOH) and broken feed back carry out the dried temperature and are controlled at 80 ± 5 ℃, can guarantee drying effect preferably, can not cause the fusing of material again;
4, the type embryo is divided into six layers; Each layer thickness ratio is 36: 2.5: 2 from the inside to the outside: 2.5: 44: 13; The black look of adding 2 ‰ is female in the hdpe layer outside, and outer 13% ratio can satisfy the requirement of weld strength, and the use of feed back ratio 44% has been practiced thrift cost under the prerequisite that guarantees fuel tank intensity; The ratio of bonding agent 2.5% guarantees that the intensity between barrier layer (EVOH) and the high density polyethylene (HDPE) is bonding; Intercept material (EVOH) ratio 2% and satisfied the discharge standard in the national strong inspection fully, the ratio of internal layer 36% can guarantee fuel tank intensity, and can stand various experiment tests;
5, in type embryo forming process; Type embryo vertical and horizontal the right and left all can maximum be divided into 100 point control; Adopt vertical with laterally about control combine and control vertically the thickness with across type embryo, the oil tank type embryo vertically with horizontal each three cover, totally six overlap the control systems.
The specific embodiment
The manufacturing approach of a kind of double-station plastic fuel tank of the present invention; Be used on double-station plastic blowing machine, producing simultaneously two difform product lot quantity fuel tank I little, wide in variety and fuel tank II; Different blow mold I that is respectively applied for fuel tank I of two pairs and the blow mold II that is used for fuel tank II are installed on this double-station plastic blowing machine; Have two air admission holes and a return-air hole on the fuel tank I, fuel tank II has an air admission hole and a return-air hole.This manufacturing approach comprises the steps:
1) high density polyethylene (HDPE), bonding agent, obstruct material, broken feed back and look is female through in each self-corresponding storage vat of vacuum feeding system suction;
2) carry out dried to intercepting material (EVOH) and evengranular broken feed back, temperature is 80 ± 5 ℃, and is dry more than 4 hours;
3) open six extruders that have automatic weighing system, the qualitative and quantitative melt that extruder is extruded gets into co-extrusion die head through the screw rod of extruder, and the tubular type embryo I (the type embryo of fuel tank I) that forms a lower ending opening is hung vertically in the co-extrusion die head below;
The temperature of six extruders reaches temperature shown in the following table, and each regional temperature error is ± 5 ℃.
Table 1
Type embryo I ratio from the inside to the outside is a high density polyethylene (HDPE): bonding agent: intercept material: bonding agent: feed back: high density polyethylene (HDPE)=36: 2.5: 2: 2.5: 44: 13, its ectomesoderm high density polyethylene (HDPE) and look mother stirred with 2 ‰ ratio through feeding system.Type embryo I average wall thickness is 8.5mm, and the cycle of extruding is 69s, and type embryo I vertically adopts 96 blankings on this basis, equal adjustment type flake thickness degree separately about type embryo I vertical and horizontal; Between the vertical number range 0-560 of type embryo I, concrete numerical value sees the following form:
Table 2
| Sequence number | Numerical value | Sequence number | Numerical value | Sequence number | Numerical value | Sequence number | Numerical value |
| 0 | 176 | 25 | -1001 | 50 | -1001 | 75 | 552 |
| 1 | 142 | 26 | -1001 | 51 | 499 | 76 | -1001 |
| 2 | -1001 | 27 | -1001 | 52 | -1001 | 77 | -1001 |
| 3 | -1001 | 28 | -1001 | 53 | -1001 | 78 | -1001 |
| 4 | -1001 | 29 | -1001 | 54 | -1001 | 79 | -1001 |
| 5 | 95 | 30 | -1001 | 55 | 500 | 80 | -1001 |
| 6 | -1001 | 31 | 314 | 56 | -1001 | 81 | 557 |
| 7 | -1001 | 32 | -1001 | 57 | -1001 | 82 | -1001 |
| 8 | 87 | 33 | -1001 | 58 | -1001 | 83 | -1001 |
| 9 | -1001 | 34 | 385 | 59 | -1001 | 84 | -1001 |
| 10 | 102 | 35 | -1001 | 60 | 502 | 85 | -1001 |
| 11 | -1001 | 36 | -1001 | 61 | -1001 | 86 | 557 |
| 12 | 194 | 37 | -1001 | 62 | -1001 | 87 | -1001 |
| 13 | -1001 | 38 | 402 | 63 | -1001 | 88 | 557 |
| 14 | 284 | 39 | -1001 | 64 | 507 | 89 | -1001 |
| 15 | -1001 | 40 | -1001 | 65 | -1001 | 90 | -1001 |
| 16 | -1001 | 41 | 452 | 66 | -1001 | 91 | 553 |
| 17 | 322 | 42 | -1001 | 67 | -1001 | 92 | 461 |
| 18 | -1001 | 43 | -1001 | 68 | 522 | 93 | -1001 |
| 19 | -1001 | 44 | 470 | 69 | -1001 | 94 | -1001 |
| 20 | -1001 | 45 | -1001 | 70 | -1001 | 95 | 453 |
| 21 | -1001 | 46 | -1001 | 71 | -1001 | 96 | -1001 |
| 22 | -1001 | 47 | -1001 | 72 | -1001 | 97 | -1001 |
| 23 | 309 | 48 | 499 | 73 | 539 | 98 | -1001 |
| 24 | -1001 | 49 | -1001 | 74 | -1001 | 99 | 414 |
Type embryo I laterally each point value adjustable extent of a left side is 0-1000, and concrete numerical value sees the following form:
Table 3
| Sequence number | Numerical value | Sequence number | Numerical value | Sequence number | Numerical value | Sequence number | Numerical value |
| 0 | 500 | 25 | -1001 | 50 | -1001 | 75 | 570 |
| 1 | -1001 | 26 | -1001 | 51 | -1001 | 76 | -1001 |
| 2 | -1001 | 27 | -1001 | 52 | -1001 | 77 | -1001 |
| 3 | -1001 | 28 | -1001 | 53 | -1001 | 78 | -1001 |
| 4 | -1001 | 29 | -1001 | 54 | -1001 | 79 | -1001 |
| 5 | 500 | 30 | 420 | 55 | 670 | 80 | -1001 |
| 6 | -1001 | 31 | -1001 | 56 | -1001 | 81 | -1001 |
| 7 | -1001 | 32 | -1001 | 57 | -1001 | 82 | -1001 |
| 8 | -1001 | 33 | 520 | 58 | -1001 | 83 | -1001 |
| 9 | -1001 | 34 | -1001 | 59 | -1001 | 84 | -1001 |
| 10 | -1001 | 35 | 550 | 60 | 680 | 85 | 500 |
| 11 | -1001 | 36 | -1001 | 61 | -1001 | 86 | -1001 |
| 12 | -1001 | 37 | -1001 | 62 | -1001 | 87 | -1001 |
| 13 | -1001 | 38 | -1001 | 63 | -1001 | 88 | -1001 |
| 14 | -1001 | 39 | -1001 | 64 | -1001 | 89 | -1001 |
| 15 | 500 | 40 | -1001 | 65 | 640 | 90 | 500 |
| 16 | -1001 | 41 | -1001 | 66 | -1001 | 91 | -1001 |
| 17 | -1001 | 42 | 560 | 67 | -1001 | 92 | -1001 |
| 18 | 440 | 43 | -1001 | 68 | -1001 | 93 | -1001 |
| 19 | -1001 | 44 | -1001 | 69 | 590 | 94 | -1001 |
| 20 | -1001 | 45 | -1001 | 70 | -1001 | 95 | -1001 |
| 21 | -1001 | 46 | -1001 | 71 | -1001 | 96 | -1001 |
| 22 | 420 | 47 | -1001 | 72 | 580 | 97 | -1001 |
| 23 | -1001 | 48 | -1001 | 73 | -1001 | 98 | -1001 |
| 24 | -1001 | 49 | 670 | 74 | -1001 | 99 | 500 |
Laterally right each the point value adjustable extent of type embryo I is 0-1000, and concrete numerical value sees the following form:
Table 4
| Sequence number | Numerical value | Sequence number | Numerical value | Sequence number | Numerical value | Sequence number | Numerical value |
| 0 | 500 | 25 | 610 | 50 | -1001 | 75 | 600 |
| 1 | 500 | 26 | -1001 | 51 | -1001 | 76 | -1001 |
| 2 | -1001 | 27 | -1001 | 52 | 595 | 77 | -1001 |
| 3 | -1001 | 28 | -1001 | 53 | -1001 | 78 | 580 |
| 4 | -1001 | 29 | -1001 | 54 | -1001 | 79 | -1001 |
| 5 | 500 | 30 | 630 | 55 | 595 | 80 | -1001 |
| 6 | -1001 | 31 | -1001 | 56 | -1001 | 81 | 560 |
| 7 | -1001 | 32 | -1001 | 57 | 595 | 82 | -1001 |
| 8 | -1001 | 33 | -1001 | 58 | -1001 | 83 | -1001 |
| 9 | -1001 | 34 | -1001 | 59 | -1001 | 84 | -1001 |
| 10 | -1001 | 35 | -1001 | 60 | 640 | 85 | 560 |
| 11 | -1001 | 36 | -1001 | 61 | -1001 | 86 | -1001 |
| 12 | -1001 | 37 | -1001 | 62 | 715 | 87 | 550 |
| 13 | -1001 | 38 | -1001 | 63 | -1001 | 88 | -1001 |
| 14 | -1001 | 39 | -1001 | 64 | -1001 | 89 | -1001 |
| 15 | -1001 | 40 | 650 | 65 | -1001 | 90 | 500 |
| 16 | 527 | 41 | -1001 | 66 | -1001 | 91 | -1001 |
| 17 | -1001 | 42 | -1001 | 67 | -1001 | 92 | -1001 |
| 18 | -1001 | 43 | -1001 | 68 | -1001 | 93 | -1001 |
| 19 | -1001 | 44 | -1001 | 69 | -1001 | 94 | -1001 |
| 20 | -1001 | 45 | 630 | 70 | -1001 | 95 | -1001 |
| 21 | 550 | 46 | -1001 | 71 | -1001 | 96 | -1001 |
| 22 | -1001 | 47 | -1001 | 72 | 703 | 97 | -1001 |
| 23 | -1001 | 48 | 600 | 73 | -1001 | 98 | -1001 |
| 24 | -1001 | 49 | -1001 | 74 | -1001 | 99 | 500 |
4) the closed rising of material bar of stretching tight on the following blowing apparatus I on the blow moulding machine is in wait state; When type embryo I blanking arrived 96 of setting values, type embryo robot moved in the die cavity of blow mold I through special-purpose sucker absorption-type embryo I, and the material bar that stretches tight stretches tight to two ends and reaches the position, and the sucker of type embryo robot is closed, the material folding plate closing; Is following pre-blowing device (pre-blowing device or blowing apparatus down down?) injection pressure is that 0.4MPa, flow are 2.2 compressed air in 2.75 seconds backward type embryos of time-delay; The pre-blowing time is 1.1 seconds; Until making type embryo I be expanded to the perfect condition of moulding, and can have molding effect preferably at this pressure, flow and time mo(u)ld bottom half embryo I;
5) blow mold I grasps type embryo I from the left and right sides, and the blanking type embryo II (the type embryo of fuel tank II) that fuel tank II is waited in the co-extrusion die head below gets back in type embryo robot, and the product robot moves on to overlap in the blow mold I top gripping simultaneously; Type embryo II ratio from the inside to the outside is a high density polyethylene (HDPE): bonding agent: intercept material: bonding agent: feed back: high density polyethylene (HDPE)=36: 2.5: 2: 2.5: 44: 13, its ectomesoderm high density polyethylene (HDPE) and look mother stirred with 2 ‰ ratio through feeding system.Type embryo II average thickness is 6.5mm, and the cycle of extruding is 69s, and type embryo II vertically adopts 77 blankings on this basis, equal adjustment type flake thickness degree separately about type embryo I vertical and horizontal; Between the vertical number range 0-490 of type embryo II, concrete numerical value sees the following form:
Table 5
| Sequence number | Numerical value | Sequence number | Numerical value | Sequence number | Numerical value | Sequence number | Numerical value |
| 0 | 156 | 25 | -1001 | 50 | 417 | 75 | -1001 |
| 1 | 142 | 26 | -1001 | 51 | 466 | 76 | -1001 |
| 2 | -1001 | 27 | 385 | 52 | -1001 | 77 | 468 |
| 3 | -1001 | 28 | -1001 | 53 | 471 | 78 | -1001 |
| 4 | -1001 | 29 | -1001 | 54 | -1001 | 79 | -1001 |
| 5 | -1001 | 30 | -1001 | 55 | -1001 | 80 | -1001 |
| 6 | -1001 | 31 | 416 | 56 | 470 | 81 | -1001 |
| 7 | -1001 | 32 | -1001 | 57 | -1001 | 82 | -1001 |
| 8 | -1001 | 33 | 419 | 58 | -1001 | 83 | -1001 |
| 9 | -1001 | 34 | -1001 | 59 | 484 | 84 | -1001 |
| 10 | -1001 | 35 | -1001 | 60 | -1001 | 85 | -1001 |
| 11 | -1001 | 36 | -1001 | 61 | -1001 | 86 | -1001 |
| 12 | 199 | 37 | 401 | 62 | -1001 | 87 | 428 |
| 13 | -1001 | 38 | -1001 | 63 | 484 | 88 | -1001 |
| 14 | -1001 | 39 | -1001 | 64 | -1001 | 89 | -1001 |
| 15 | 227 | 40 | -1001 | 65 | -1001 | 90 | -1001 |
| 16 | -1001 | 41 | 390 | 66 | 484 | 91 | -1001 |
| 17 | -1001 | 42 | -1001 | 67 | -1001 | 92 | -1001 |
| 18 | -1001 | 43 | -1001 | 68 | -1001 | 93 | 267 |
| 19 | 272 | 44 | -1001 | 69 | 483 | 94 | -1001 |
| 20 | -1001 | 45 | -1001 | 70 | -1001 | 95 | -1001 |
| 21 | -1001 | 46 | -1001 | 71 | -1001 | 96 | -1001 |
| 22 | -1001 | 47 | 436 | 72 | -1001 | 97 | 267 |
| 23 | 318 | 48 | -1001 | 73 | -1001 | 98 | -1001 |
| 24 | -1001 | 49 | -1001 | 74 | 478 | 99 | 267 |
[0048]Type embryo II laterally each point value adjustable extent of a left side is 0-1000, and concrete numerical value sees the following form:
Table 6
| Sequence number | Numerical value | Sequence number | Numerical value | Sequence number | Numerical value | Sequence number | Numerical value |
| 0 | 500 | 25 | -1001 | 50 | -1001 | 75 | 635 |
| 1 | 500 | 26 | 380 | 51 | 540 | 76 | -1001 |
| 2 | -1001 | 27 | -1001 | 52 | -1001 | 77 | 500 |
| 3 | -1001 | 28 | -1001 | 53 | -1001 | 78 | -1001 |
| 4 | -1001 | 29 | -1001 | 54 | -1001 | 79 | -1001 |
| 5 | 500 | 30 | 380 | 55 | 420 | 80 | -1001 |
| 6 | -1001 | 31 | -1001 | 56 | -1001 | 81 | -1001 |
| 7 | -1001 | 32 | -1001 | 57 | -1001 | 82 | -1001 |
| 8 | -1001 | 33 | 380 | 58 | -1001 | 83 | -1001 |
| 9 | -1001 | 34 | -1001 | 59 | -1001 | 84 | -1001 |
| 10 | -1001 | 35 | -1001 | 60 | 370 | 85 | 500 |
| 11 | -1001 | 36 | -1001 | 61 | -1001 | 86 | -1001 |
| 12 | -1001 | 37 | -1001 | 62 | -1001 | 87 | -1001 |
| 13 | -1001 | 38 | -1001 | 63 | 370 | 88 | -1001 |
| 14 | -1001 | 39 | -1001 | 64 | ? | 89 | -1001 |
| 15 | -1001 | 40 | 360 | 65 | 320 | 90 | -1001 |
| 16 | -1001 | 41 | -1001 | 66 | -1001 | 91 | -1001 |
| 17 | 500 | 42 | -1001 | 67 | -1001 | 92 | 500 |
| 18 | -1001 | 43 | 540 | 68 | -1001 | 93 | -1001 |
| 19 | -1001 | 44 | -1001 | 69 | -1001 | 94 | -1001 |
| 20 | 410 | 45 | -1001 | 70 | -1001 | 95 | -1001 |
| 21 | -1001 | 46 | -1001 | 71 | -1001 | 96 | -1001 |
| 22 | -1001 | 47 | -1001 | 72 | 320 | 97 | -1001 |
| 23 | -1001 | 48 | -1001 | 73 | -1001 | 98 | -1001 |
| 24 | -1001 | 49 | -1001 | 74 | -1001 | 99 | 500 |
[0051]Laterally right each the point value adjustable extent of type embryo II is 0-1000, and concrete numerical value sees the following form:
Table 7
| Sequence number | Numerical value | Sequence number | Numerical value | Sequence number | Numerical value | Sequence number | Numerical value |
| 0 | 500 | 25 | 550 | 50 | -1001 | 75 | 630 |
| 1 | 500 | 26 | -1001 | 51 | -1001 | 76 | -1001 |
| 2 | -1001 | 27 | -1001 | 52 | -1001 | 77 | 500 |
| 3 | -1001 | 28 | -1001 | 53 | -1001 | 78 | -1001 |
| 4 | -1001 | 29 | -1001 | 54 | -1001 | 79 | -1001 |
| 5 | 500 | 30 | 640 | 55 | 630 | 80 | -1001 |
| 6 | -1001 | 31 | -1001 | 56 | -1001 | 81 | -1001 |
| 7 | -1001 | 32 | -1001 | 57 | -1001 | 82 | 500 |
| 8 | -1001 | 33 | -1001 | 58 | -1001 | 83 | -1001 |
| 9 | -1001 | 34 | -1001 | 59 | -1001 | 84 | -1001 |
| 10 | -1001 | 35 | -1001 | 60 | 630 | 85 | -1001 |
| 11 | -1001 | 36 | -1001 | 61 | -1001 | 86 | -1001 |
| 12 | -1001 | 37 | -1001 | 62 | -1001 | 87 | -1001 |
| 13 | -1001 | 38 | -1001 | 63 | -1001 | 88 | -1001 |
| 14 | -1001 | 39 | -1001 | 64 | -1001 | 89 | -1001 |
| 15 | -1001 | 40 | 640 | 65 | 730 | 90 | -1001 |
| 16 | -1001 | 41 | -1001 | 66 | -1001 | 91 | -1001 |
| 17 | -1001 | 42 | -1001 | 67 | -1001 | 92 | 500 |
| 18 | 500 | 43 | -1001 | 68 | -1001 | 93 | -1001 |
| 19 | -1001 | 44 | 630 | 69 | -1001 | 94 | -1001 |
| 20 | -1001 | 45 | -1001 | 70 | 720 | 95 | -1001 |
| 21 | 550 | 46 | -1001 | 71 | -1001 | 96 | -1001 |
| 22 | -1001 | 47 | -1001 | 72 | 720 | 97 | -1001 |
| 23 | -1001 | 48 | -1001 | 73 | -1001 | 98 | -1001 |
| 24 | -1001 | 49 | -1001 | 74 | -1001 | 99 | 500 |
[0054]6) blow mold I grasps type embryo I from the left and right sides, and two air inlet needle, return-air pin trigger respectively thrust, and wherein air inlet needle time-delay was thrust in 2.1 seconds; Another air inlet needle time-delay was thrust in 2.8 seconds, and the time-delay of return-air pin was thrust in 4 seconds, and two air inlet needle are thrust in the type embryo I fast; And the compressed air of injection 0.8-1.0MPa carries out high pressure blow-gas in type embryo I, and type embryo I die cavity complete and blow mold I is fitted, and thrusts in the type embryo I after the time-delay of return-air pin arrives; And in type embryo I, blew 20 seconds behind the injecting compressed air; The return-air pin begins to discharge hot gas, keeps the pressure of 0.5MPa in the casing, and this step can make type embryo I keep molding effect preferably; The cooling water that 10 ℃ of pressure of feeding are 0.45MPa in the cooling water channel of blow mold I cools off;
7) stretch tight on the following blowing apparatus II on the blow moulding machine that the material bar is closed to rise, be in wait state, when type embryo II blanking arrived setting value, type embryo robot moved in the die cavity of blow mold II through special-purpose sucker absorption-type embryo II; The material bar that stretches tight stretches tight to two ends and reaches the position; Type embryo robot sucker is closed; The material folding plate closing, 3.8 seconds interior injection pressures of backward type embryo II of following pre-blowing device time-delay are that 0.38MPa, flow are 2.0 compressed air, the pre-blowing time is 0.36 second; Until making type embryo II be expanded to the perfect condition of moulding, and can have molding effect preferably at this pressure, flow and time mo(u)ld bottom half embryo II;
8) blow mold II grasps type embryo II from the left and right sides, and type embryo robot gets back to the co-extrusion die head below and waits for next type embryo I blanking.An air inlet needle that is provided with in the blow mold II, return-air pin trigger respectively thrust in the type embryo II; Wherein the air inlet needle time-delay is 1.4 seconds, return-air pin time-delay 2.1 seconds, and time-delay is thrust respectively in the type embryo II after arriving fast; And in type embryo II, blew 20 seconds behind the injecting compressed air; The return-air pin begins to discharge hot gas, makes the pressure that keeps 0.5MPa in the fuel tank II casing, and this step can make type embryo II keep molding effect preferably; The cooling water that 10 ℃ of pressure of feeding are 0.45MPa in the cooling water channel of blow mold II cools off;
9) after the fuel tank I of moulding blows end; The product robot takes out fuel tank I, by the deburring personnel fuel tank I is carried out deburring, is placed on the conveyer belt that cooling blower is housed repairing the overlap up and down that removes; Make the overlap of high temperature reduce to 50-70 ℃ of entering disintegrating machine, be broken into homogeneous granules;
The fuel tank I that 10) will fix the limit is positioned on the water-cooled pattern shaping rack, and in fuel tank I, injects the compressed air of 70mbar, sinks in 10 ℃ the cooling water to keep 150 seconds, makes evenly cooling and shaping fully of fuel tank I;
11) after the fuel tank II of moulding blows end; The product robot takes out fuel tank II, by the deburring personnel fuel tank II is carried out deburring, is placed on the conveyer belt that cooling blower is housed repairing the overlap up and down that removes; Make the overlap of high temperature reduce to 50-70 ℃ of entering disintegrating machine, be broken into homogeneous granules;
The fuel tank II that 12) will fix the limit is positioned on another water-cooled pattern shaping rack, and in fuel tank II, injects the compressed air of 70mbar, sinks in 10 ℃ the cooling water to keep 150 seconds, makes evenly cooling and shaping fully of fuel tank II.
Claims (7)
1. the manufacturing approach of a double-station plastic fuel tank; Be used on double-station plastic blowing machine, producing simultaneously two difform fuel tank I and fuel tank II; Different blow mold I that is used for fuel tank I of two pairs and the blow mold II that is used for fuel tank II are installed on this double-station plastic blowing machine, and it is characterized in that: said manufacturing approach comprises the steps:
1) high density polyethylene (HDPE), bonding agent, obstruct material, broken feed back and look is female through in each self-corresponding storage vat of vacuum feeding system suction;
2) carry out dried to intercepting material and evengranular broken feed back, temperature is 80 ± 5 ℃, and is dry more than 4 hours;
3) open six extruders that have automatic weighing system, the qualitative and quantitative melt that extruder is extruded gets into co-extrusion die head through the screw rod of extruder, and the tubular type embryo I that forms a lower ending opening is hung vertically in the co-extrusion die head below;
4) the closed rising of material bar of stretching tight under on the blowing apparatus I is in wait state; When type embryo I blanking arrived setting value, type embryo robot moved in the die cavity of blow mold I through special-purpose sucker absorption-type embryo I, and the material bar that stretches tight stretches tight to two ends and reaches the position, and type embryo robot sucker is closed, the material folding plate closing; Is following pre-blowing device (pre-blowing device or blowing apparatus down down?) injection pressure is that 0.4MPa, flow are 2.2 compressed air in 2.75 seconds backward type embryos of time-delay, the pre-blowing time is 1.1 seconds, until making type embryo I be expanded to the perfect condition of moulding;
5) blow mold I grasps type embryo I from the left and right sides, and the blanking type embryo II that fuel tank II is waited in the co-extrusion die head below gets back in type embryo robot, and the product robot moves on to overlap in the blow mold I top gripping simultaneously;
6) air inlet needle in the blow mold I and return-air pin thrust in the type embryo I respectively and inwardly inject 0.8-1.0MPa compressed air and carry out high pressure blow-gas; Make the complete and die cavity applying of type embryo I; Typing back return-air pin begins to discharge fast hot gas, makes the pressure that keeps 0.5MPa in the fuel tank I casing at last;
7) stretching tight on the blowing apparatus II under, the material bar is closed to rise, and is in wait state, and when type embryo II blanking arrived setting value, type embryo robot moved in the die cavity of blow mold II through special-purpose sucker absorption-type embryo II; The material bar that stretches tight stretches tight to two ends and reaches the position; Type embryo robot sucker is closed, the material folding plate closing, and 3.8 seconds interior injection pressures of backward type embryo II of following pre-blowing device time-delay are that 0.38MPa, flow are 2.0 compressed air; The pre-blowing time is 0.36 second, until making type embryo II be expanded to the perfect condition of moulding;
8) blow mold II grasps type embryo II from the left and right sides; Type embryo robot gets back to the co-extrusion die head below and waits for next type embryo I blanking; Be provided with air inlet needle and return-air pin in the blow mold II, air inlet needle and return-air pin thrust in the type embryo II respectively and inwardly inject 0.8-1.0MPa compressed air and carry out high pressure blow-gas, make the complete and die cavity applying of type embryo II; Typing back return-air pin begins to discharge fast hot gas, makes the pressure that keeps 0.5MPa in the fuel tank II casing at last;
9) after the fuel tank I of moulding blows end; The product robot takes out fuel tank I, by the deburring personnel fuel tank I is carried out deburring, is placed on the conveyer belt that cooling blower is housed repairing the overlap up and down that removes; Make the overlap of high temperature reduce to 50-70 ℃ of entering disintegrating machine, be broken into homogeneous granules;
The fuel tank I that 10) will fix the limit is positioned on the water-cooled pattern shaping rack, and in fuel tank I injecting compressed air, fuel tank I sunk in 10 ℃ the cooling water, make evenly cooling and shaping fully of fuel tank I;
11) after the fuel tank II of moulding blows end; The product robot takes out fuel tank II, by the deburring personnel fuel tank II is carried out deburring, is placed on the conveyer belt that cooling blower is housed repairing the overlap up and down that removes; Make the overlap of high temperature reduce to 50-70 ℃ of entering disintegrating machine, be broken into homogeneous granules;
The fuel tank II that 12) will fix the limit is positioned on another water-cooled pattern shaping rack, and in fuel tank II injecting compressed air, fuel tank II sunk in 10 ℃ the cooling water, make evenly cooling and shaping fully of fuel tank II.
2. the manufacturing approach of double-station plastic fuel tank according to claim 1 is characterized in that: in step 6), blow mold I grasps type embryo I from the left and right sides; Two air inlet needle, return-air pin trigger respectively thrust, and wherein air inlet needle time-delay was thrust in 2.1 seconds, and another air inlet needle time-delay was thrust in 2.8 seconds; The time-delay of return-air pin was thrust in 4 seconds, and two air inlet needle are thrust in the type embryo I fast, and in type embryo I, injected the compressed air of 0.8-1.0MPa; Make the complete and die cavity applying of type embryo I; Thrust in the type embryo I after the time-delay of return-air pin arrives, and in type embryo I, blew 20 seconds behind the injecting compressed air, the return-air pin begins to discharge hot gas; The pressure that keeps 0.5MPa in the casing feeds 10 ℃ of cooling waters that pressure is 0.45MPa in the cooling water channel of blow mold I.
3. the manufacturing approach of double-station plastic fuel tank according to claim 2; It is characterized in that: in step 10); The fuel tank I that fixes the limit is placed on the water-cooled pattern shaping rack; And in fuel tank I, inject the compressed air of 70mbar, and sink in 10 ℃ the cooling water and kept 150 seconds, make evenly cooling and shaping fully of fuel tank I.
4. the manufacturing approach of double-station plastic fuel tank according to claim 1 is characterized in that: in step 8), blow mold II grasps type embryo II from the left and right sides; Air inlet needle, return-air pin trigger respectively thrust; Wherein the air inlet needle time-delay is 1.4 seconds, return-air pin time-delay 2.1 seconds, and time-delay is thrust respectively in the type embryo II after arriving fast; And in type embryo II, blew 20 seconds behind the injecting compressed air; The return-air pin begins to discharge hot gas, makes the pressure that keeps 0.5MPa in the fuel tank II casing, feeds 10 ℃ of cooling waters that pressure is 0.45MPa in the cooling water channel of blow mold II.
5. the manufacturing approach of double-station plastic fuel tank according to claim 4; It is characterized in that: in step 12); The blow mold II that fixes the limit is placed on the water-cooled pattern; And in fuel tank II, inject the compressed air of 70mbar, and sink in 10 ℃ the cooling water and kept 150 seconds, make evenly cooling and shaping fully of fuel tank II.
6. according to the manufacturing approach of claim 3 or 5 described double-station plastic fuel tanks; It is characterized in that: type embryo I and type embryo II are six layers; Ratio from the inside to the outside is a high density polyethylene (HDPE): bonding agent: intercept material: bonding agent: broken feed back: high density polyethylene (HDPE)=36: 2.5: 2: 2.5: 44: 13, its ectomesoderm high density polyethylene (HDPE) and look mother stirred with 2 ‰ ratio through the vacuum feeding system.
7. the manufacturing approach of double-station plastic fuel tank according to claim 6 is characterized in that: the type embryo I average wall thickness of fuel tank I is 8.5mm, and the cycle of extruding is 69s; The type embryo II average thickness of fuel tank II is 6.5mm, and the cycle of extruding is 69s; Type embryo I vertically adopts 96 blankings on this basis, and type embryo II vertically adopts 77 blankings, equal adjustment type flake thickness degree separately about fuel tank I, fuel tank II vertical and horizontal.
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| CN105922546A (en) * | 2016-04-30 | 2016-09-07 | 安徽志诚机电零部件有限公司 | Single blowing type blow molding process for automobile windshield washer |
| CN106584724A (en) * | 2016-12-28 | 2017-04-26 | 芜湖顺荣汽车部件有限公司 | Water-cooling shaping process of oil tank |
| CN106671392A (en) * | 2016-12-28 | 2017-05-17 | 芜湖顺荣汽车部件有限公司 | Oil tank blow molding technology |
| CN108408400A (en) * | 2018-05-11 | 2018-08-17 | 江苏北人机器人系统股份有限公司 | A kind of double-station plastic fuel tank automatic assembly line |
| CN117465042A (en) * | 2023-12-27 | 2024-01-30 | 盐城市顺发油箱有限公司 | Production method of multi-station plastic fuel tank |
| CN108408400B (en) * | 2018-05-11 | 2024-05-03 | 江苏北人智能制造科技股份有限公司 | Automatic production line for double-station plastic oil tanks |
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| CN102501362B (en) | 2014-08-13 |
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Effective date of registration: 20151228 Address after: 241000 Industrial Zone, Nanling Economic Development Zone, Wuhu, Anhui Patentee after: WUHU SHUNRONG AUTOMOBILE PARTS CO., LTD. Address before: 241000 Nanling economic and Technological Development Zone, Anhui, Wuhu Patentee before: Wuhu Shunrong Automotive Parts Co., Ltd. |