CN103785794A - Heavy truck leaf spring bracket mold plate assembly - Google Patents
Heavy truck leaf spring bracket mold plate assembly Download PDFInfo
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- CN103785794A CN103785794A CN201210418741.2A CN201210418741A CN103785794A CN 103785794 A CN103785794 A CN 103785794A CN 201210418741 A CN201210418741 A CN 201210418741A CN 103785794 A CN103785794 A CN 103785794A
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- casting mold
- cross gate
- half cross
- spring bracket
- heavy truck
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Abstract
The present invention relates to a mold plate assembly for casting a heavy truck leaf spring bracket. A purpose of the present invention is to provide a heavy truck leaf spring bracket mold plate assembly so as to improve the hole shrinkage problem, increase the riser shrinkage filling capacity, and improve the yield and the production efficiency. The heavy truck leaf spring bracket mold plate assembly is characterized by comprising four molds corresponding to the shape of the heavy truck leaf spring bracket, a lower mold horizontal runner, an upper mold horizontal runner, a riser and a chill, wherein the one set of the molds comprise the two molds, the hot segment ends of the two molds in each set of the molds are opposite, the chill is arranged between the two hot segment ends, the upper mold horizontal runner is overlapped on the lower mold horizontal runner, the upper mold horizontal runner is communicated with the inner runner in the mold, the lower mold horizontal runners in each set of the molds are respectively communicated with the straight runner base, and the riser is the hot side riser and is arranged between the upper mold horizontal runner and the inner runner in the mold.
Description
Technical field
The present invention relates to a kind of casting mold plate assembly for foundry goods, relate in particular to a kind of for casting the casting mold plate assembly of flat spring bracket of heavy truck.
Background technology
Existing flat spring bracket is the important stressed part of on F3000 heavy truck, as shown in Figure 1, this castings material is QT500-7, casting weight 22.5kg, thickest 51mm, and process herein the three rows screwed hole of totally 12 M14, do not allowed the defects such as shrinkage cavity (shrinkage porosite), pore and slag inclusion.This support upper end is thin-walled end, and lower end is heavy wall end, and heavy wall end is provided with three row's screwed holes along cross-wise direction.As shown in Figure 2, manufacture the total composition of casting mold plate left and right two parts casting mold of this support, shape symmetry, two thin-walled ends of casting mold are relative, and when cast, molten iron flows into from sprue base 5, flow in ingate via cross gate 6 ', molten iron flow into heavy wall end from thin-walled end, i.e. thermal center end.Sandbox in this template assembly is of a size of 800mm × 1200mm × 350mm, and sand hardness is more than 85.Former technique one type is arranged each 1 of left and right part, adopts one end to water the traditional handicraft production that one end emits, and from the thin-walled cast of casting mold, places blank riser on the top of thermal center.Because blank riser is cold rising head, meanwhile, because cross gate is a horizontal running channel, rising head and running channel are horizontal, feeding capacity deficiency; This casting section thickness differs larger, and thermal center place needs the feeding time relatively long, and what make foundry goods can not offset the amount of contraction at thermal center place from feeding, thereby produces shrinkage cavity defect.For strengthening the feeding capacity of rising head, once suitably strengthened Riser Dimensions, change blank riser into Φ 80 × 100mm blank riser, riser neck changes 40 × 25mm into, but result has just moved a bit by shrinkage cavity position toward rising head direction a little, and shrinkage cavity defect has no obviously and alleviates, and cause cleaning more difficult.Due to shrinkage cavity and porosity in the time boring 12-M14 screwed hole, cause percent defective up to 40%, and product yield is lower, be only 73%.
Summary of the invention
For deficiency of the prior art, the present invention aims to provide one and improves Shrinkage Problem, improves the heavy truck flat spring bracket casting mold plate assembly of riser feeding ability and raising yield rate and production efficiency.
In order to address the above problem, heavy truck flat spring bracket casting mold plate assembly of the present invention, is characterized in that comprising: four and the corresponding casting mold of heavy truck flat spring bracket shape, mo(u)ld bottom half cross gate, mo(u)ld top half cross gate, rising head and chill; This casting mold between two in one group and every group of casting mold the thermal center end of two casting molds relative, chill is arranged between two thermal center ends; Mo(u)ld top half cross gate is overlapped on mo(u)ld bottom half cross gate, and mo(u)ld top half cross gate is communicated with the ingate in casting mold, and the mo(u)ld bottom half cross gate in every group of casting mold is communicated with sprue base respectively; This rising head is hot side riser, and it is arranged between the ingate in mo(u)ld top half cross gate and casting mold.
Preferably, described mo(u)ld top half cross gate is by its end chamfer and described mo(u)ld bottom half cross gate overlap joint, and the angle between this end chamfer and mo(u)ld bottom half cross gate is 60 °.
Preferably, between described mo(u)ld top half cross gate and mo(u)ld bottom half cross gate, be provided with screen pack.The quantity of described chill is two, between these two blocks of chills, is provided with air-out needle.Between two groups of foundry goods, be provided with exhaust cavity.Be provided with chill in described sprue base both sides and make mould.The position of the thin-walled end of described casting mold and close thermal center is provided with satrain relief.The height of described mo(u)ld top half cross gate is 61.5 ㎜, and the height of mo(u)ld bottom half cross gate is 76 ㎜.
The invention has the beneficial effects as follows: the heavy truck flat spring bracket that adopts above-mentioned new mint template assembly to produce, multiple sampling is dissected and is not all found shrinkage cavity, has adopted so far above-mentioned new technology to produce up to ten thousand, foundry goods, and the comprehensive percent defective of foundry goods is controlled at 5.04%.Product yield also brings up to 84% by 73% simultaneously., production efficiency also doubles.The application of curved surface somatotype, has reduced size in addition, has both saved raw material, has also saved core time, has improved production efficiency.
Accompanying drawing explanation
Fig. 1 is the heavy truck flat spring bracket structural representation in the present invention;
Fig. 2 is existing heavy truck flat spring bracket casting mold plate assembly structure schematic diagram;
Fig. 3 is the heavy truck flat spring bracket casting mold plate assembly structure schematic diagram in the present invention;
Fig. 4 is the cross-sectional view of A-A along the line in Fig. 3.
The specific embodiment
Below in conjunction with accompanying drawing, the present invention is described further.
In conjunction with Fig. 3 and Fig. 4, a kind of heavy truck flat spring bracket casting mold plate assembly of the present invention, comprising: four and the corresponding casting mold 1 of heavy truck flat spring bracket shape, mo(u)ld bottom half cross gate 6, mo(u)ld top half cross gate 7, rising head 8 and two blocks of chills 9.This casting mold between two one group be symmetrical set, and the thermal center end of two casting molds in every group of casting mold, heavy wall end is oppositely arranged up and down, two blocks of chills 9 are arranged between two thermal center ends.Mo(u)ld top half cross gate 7 is overlapped on mo(u)ld bottom half cross gate 6, and mo(u)ld top half cross gate 7 is communicated with the ingate in casting mold 1, and the mo(u)ld bottom half cross gate 6 in every group of casting mold is communicated with sprue base 5 respectively, and sprue base is communicated with sprue.This rising head 8 changes hot side riser into by the cold cap mouth of existing flanging, and it is arranged between mo(u)ld top half cross gate and ingate.
The section ratio of casting mold plate of the present invention is 1:1.4:1.2, and cross gate adopts by mo(u)ld bottom half cross gate 6 overlapping mode to mo(u)ld top half cross gate 7, guarantees iron liquid stable filling type.Lap position between mo(u)ld top half cross gate 7 and mo(u)ld bottom half cross gate 6 is placed screen pack 16, plays the effect of pushing off the slag.And use two blocks of chills 9 to be placed on thermal center place, both reduced thermal center, shortened the feeding time, improved again the utilize degree of graphitization expansion from feeding.Meanwhile, utilize the highly higher feature of 2 core 3, take 2 cores as boundary, take curved surface somatotype, hot side riser and chill position are raised, realize foundry goods on the one hand and carry, reduce core quantity and size; Raise on the other hand hot side riser height, be more conducive to feeding, also had the placement of being convenient to chill simultaneously.
Preferably, described mo(u)ld top half cross gate 7 overlaps with described mo(u)ld bottom half cross gate 6 by the inclined-plane 71 of its end, and the angle α between this end chamfer and mo(u)ld bottom half cross gate is 60 °, not only can guarantee iron liquid stable filling type, and the flowing velocity of assurance iron liquid, improve production efficiency.Between described two blocks of chills, be provided with air-out needle 13, be conducive to discharge of steam.
Preferably, between two groups of foundry goods, be provided with exhaust cavity 14.Increase by two exhaust cavities in the vacant position of template, enhancement forced exhaust, solves the disadvantageous problem of static pressure Linear-Cavity exhaust, has saved molding sand material simultaneously.In addition, be provided with chill in described sprue base both sides and make mould 15.Two blocks of chills are made to mould 15 and be arranged in sprue both sides, make chill organize in addition production, saved cost, chill is made mould and sprue coupling part is demountable structure, controlled refrigeration iron output, guarantees to match with Production requirement, avoids causing waste of material.The position of the thin-walled end of described casting mold 1 and close thermal center is provided with satrain relief 10.Adopt Equilibrium Solidification method, satrain relief 10 is opened in to the position near thermal center, feeder modulus is got 1.5cm, has both guaranteed the needs of feeding, does not increase again contact thermal center.Sandbox in this casting mold plate assembly is of a size of 1200 × 800mm, mo(u)ld top half cross gate height 61.5mm, and mo(u)ld bottom half cross gate height 76mm, utilizes core to cut off curved surface somatotype, the highest 21.5mm of curved surface somatotype; Every type is arranged each 2 of left and right symmetrical part.
The heavy truck flat spring bracket that adopts above-mentioned new mint template assembly trial production, multiple sampling is dissected and is not all found shrinkage cavity, has adopted so far above-mentioned new technology to produce up to ten thousand, foundry goods, and the comprehensive percent defective of foundry goods is controlled at 5.04%.Product yield also brings up to 84% by 73% simultaneously., production efficiency also doubles.The application of curved surface somatotype, has reduced size in addition, has both saved raw material, has also saved core time, has improved production efficiency.
Claims (8)
1. a heavy truck flat spring bracket casting mold plate assembly, is characterized in that comprising: four and the corresponding casting mold of heavy truck flat spring bracket shape (1), mo(u)ld bottom half cross gate (6), mo(u)ld top half cross gate (7), rising head (8) and chill (9);
This casting mold between two in one group and every group of casting mold the thermal center end of two casting molds relative, chill (9) is arranged between two thermal center ends;
Mo(u)ld top half cross gate (7) is overlapped on mo(u)ld bottom half cross gate (6), and mo(u)ld top half cross gate (7) is communicated with the ingate in casting mold (1), and the mo(u)ld bottom half cross gate (6) in every group of casting mold is communicated with sprue base respectively;
This rising head (8) is hot side riser, and it is arranged between the ingate in mo(u)ld top half cross gate and casting mold (1).
2. heavy truck flat spring bracket casting mold plate assembly according to claim 1, it is characterized in that: described mo(u)ld top half cross gate (7) is by its end chamfer (71) and described mo(u)ld bottom half cross gate (6) overlap joint, and the angle between this end chamfer and mo(u)ld bottom half cross gate is 60 °.
3. heavy truck flat spring bracket casting mold plate assembly according to claim 1 and 2, is characterized in that: between described mo(u)ld top half cross gate (7) and mo(u)ld bottom half cross gate (6), be provided with screen pack (16).
4. heavy truck flat spring bracket casting mold plate assembly according to claim 1 and 2, is characterized in that: the quantity of described chill (9) is two, between these two blocks of chills, is provided with air-out needle (13).
5. heavy truck flat spring bracket casting mold plate assembly according to claim 1 and 2, is characterized in that: between two groups of foundry goods, be provided with exhaust cavity (14).
6. heavy truck flat spring bracket casting mold plate assembly according to claim 1 and 2, is characterized in that: be provided with chill in described sprue base both sides and make mould (15).
7. heavy truck flat spring bracket casting mold plate assembly according to claim 1 and 2, is characterized in that: the thin-walled end of described casting mold (1) and the position near thermal center are provided with satrain relief (10).
8. heavy truck flat spring bracket casting mold plate assembly according to claim 1 and 2, is characterized in that: the height of described mo(u)ld top half cross gate (7) is 61.5 ㎜, and the height of mo(u)ld bottom half cross gate (6) is 76 ㎜.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210418741.2A CN103785794A (en) | 2012-10-26 | 2012-10-26 | Heavy truck leaf spring bracket mold plate assembly |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210418741.2A CN103785794A (en) | 2012-10-26 | 2012-10-26 | Heavy truck leaf spring bracket mold plate assembly |
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| CN103785794A true CN103785794A (en) | 2014-05-14 |
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| CN201210418741.2A Pending CN103785794A (en) | 2012-10-26 | 2012-10-26 | Heavy truck leaf spring bracket mold plate assembly |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104439092A (en) * | 2015-01-16 | 2015-03-25 | 广东富华铸锻有限公司 | Plate spring base sand core design |
| CN104493095A (en) * | 2015-01-09 | 2015-04-08 | 宁波日星铸业有限公司 | Pouring system and pouring method of thin-wall casting |
| CN104550746A (en) * | 2015-01-16 | 2015-04-29 | 广东富华铸锻有限公司 | Height-limit feeding process for bearing seat |
| CN114042871A (en) * | 2021-11-12 | 2022-02-15 | 中车戚墅堰机车有限公司 | Gating system with compensation and deformation prevention effects |
| CN117564248A (en) * | 2024-01-16 | 2024-02-20 | 成都卫达机械制造有限公司 | Multi-way bulb tube integrated die-casting forming runner and die |
Citations (4)
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| JPH10267764A (en) * | 1997-03-27 | 1998-10-09 | Mitsubishi Motors Corp | Load detecting device |
| US20070267259A1 (en) * | 2006-05-19 | 2007-11-22 | Textron Inc. | Rear suspension eyelet mount shock assembly |
| CN102069695A (en) * | 2011-01-26 | 2011-05-25 | 西峡县金鑫特种铸钢有限公司 | Method for casting rear spring bracket of austenite ductile iron |
| CN202490916U (en) * | 2012-01-09 | 2012-10-17 | 平顶山市海之源电气有限公司 | High-scale open-type gating system for aluminum alloy casting |
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2012
- 2012-10-26 CN CN201210418741.2A patent/CN103785794A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10267764A (en) * | 1997-03-27 | 1998-10-09 | Mitsubishi Motors Corp | Load detecting device |
| US20070267259A1 (en) * | 2006-05-19 | 2007-11-22 | Textron Inc. | Rear suspension eyelet mount shock assembly |
| CN102069695A (en) * | 2011-01-26 | 2011-05-25 | 西峡县金鑫特种铸钢有限公司 | Method for casting rear spring bracket of austenite ductile iron |
| CN202490916U (en) * | 2012-01-09 | 2012-10-17 | 平顶山市海之源电气有限公司 | High-scale open-type gating system for aluminum alloy casting |
Non-Patent Citations (1)
| Title |
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| 罗光彩: "板簧支架铸造工艺改进", 《汽车实用技术》 * |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104493095A (en) * | 2015-01-09 | 2015-04-08 | 宁波日星铸业有限公司 | Pouring system and pouring method of thin-wall casting |
| CN104493095B (en) * | 2015-01-09 | 2018-07-06 | 宁波日星铸业有限公司 | The running gate system and its pouring procedure of thin-section casting |
| CN104439092A (en) * | 2015-01-16 | 2015-03-25 | 广东富华铸锻有限公司 | Plate spring base sand core design |
| CN104550746A (en) * | 2015-01-16 | 2015-04-29 | 广东富华铸锻有限公司 | Height-limit feeding process for bearing seat |
| CN114042871A (en) * | 2021-11-12 | 2022-02-15 | 中车戚墅堰机车有限公司 | Gating system with compensation and deformation prevention effects |
| CN117564248A (en) * | 2024-01-16 | 2024-02-20 | 成都卫达机械制造有限公司 | Multi-way bulb tube integrated die-casting forming runner and die |
| CN117564248B (en) * | 2024-01-16 | 2024-04-05 | 成都卫达机械制造有限公司 | Filling method for multi-way bulb tube integrated die-casting forming runner |
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Application publication date: 20140514 |