CN201079828Y - Pressure casting machine for aluminum piston - Google Patents
Pressure casting machine for aluminum piston Download PDFInfo
- Publication number
- CN201079828Y CN201079828Y CNU2007200271899U CN200720027189U CN201079828Y CN 201079828 Y CN201079828 Y CN 201079828Y CN U2007200271899 U CNU2007200271899 U CN U2007200271899U CN 200720027189 U CN200720027189 U CN 200720027189U CN 201079828 Y CN201079828 Y CN 201079828Y
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Abstract
The utility model relates to an aluminous piston pressure casting machine, which comprises a lathe bed, a skid platform arranged at the upper part of the lathe bed, a top mold mechanism arranged on the skid platform, an external mold and a margin core mechanism arranged at the upper part and the lower part of the skid platform, a middle core mechanism and a tilting mechanism arranged inside the lathe bed, and a defending and automatic opening and closing door mechanism arranged outside the lathe bed. The utility model is connected into a whole through an electrical system and a hydropneumatic and pneumatic system. The automatization of the actions such as opening and closing mold, taking out mold core, pressurizing and opening and closing door, etc. in the casting process are finished. The utility model has the characteristics that: firstly, a split top mold mechanism is adopted, not only a pressure casting aluminous piston with inner-cooling but a ceramic fibre partial reinforced composite piston with inner-cooling can be produced; secondly, a totally enclosed shield structure is adopted, thereby ensuring the security, the work time and the operation convenience of operators; thirdly, pressure checking alarmof air pressure and hydraulic pressure is adopted, thereby further ensuring the security of the operation.
Description
Technical field
The utility model relates to a kind of casting machine, and specifically a kind of can being applicable to produced interior cold compression casting aluminium piston of band and the aluminium piston pressure casting machine of producing ceramic fibre partially-reinforced composite material piston cold in the band.
Background technology
In recent years, more and more stricter to the requirement of internal combustion engine tail gas discharge both at home and abroad, improving constantly of power of IC engine density caused the temperature in the cylinder also constantly to raise.All-aluminium piston is the core component of internal combustion engine, because piston crown directly contacts high-temperature fuel gas, born HTHP, the working environment very severe, and aluminum alloy materials is along with the rising of temperature, mechanical performance constantly reduces, after temperature acquires a certain degree, mechanicalnesses such as the intensity of aluminum alloy materials can not satisfy the job requirement of engine, particularly combustion chamber throat and partly be easy to produce heat fatigue destruction, so people solve above problem by the following two kinds of programs.
At piston crown by after the meltability core is casted into piston crown, water dissolves the salt core and forms cavity.In engine working process, in the internal piston cooling oil duct, spray into oil by nozzle and reach reduction piston crown temperature.
2. use the Al-base ceramic fibrous composite to strengthen the thermal fatigue strength at combustion chamber throat position.
In order further to improve the power density of engine, following two kinds of methods are used in the piston manufacturing:
1. the mode of working pressure casting, aluminium alloy crystallization under pressure makes the crystal grain of material obtain further refinement, thus the intensity that the improves piston material fatigue at high temperature performance of piston material particularly.
2. the method for working pressure casting is made the local reinforced composite materials piston of ceramic fibre.
At present, have the mode of using low pressure casting to produce piston, but force value is lower.The casting machine design more complicated and the use of can not verting.Mostly the ceramic fibre reinforced composite piston is the method production with extrusion casint, and the force value of pressurization is excessive, and die life is too short, cost is high, the piston in cold oil road in can not producing.
Summary of the invention
The utility model is for overcoming above-mentioned the deficiencies in the prior art, the compression casting (air pressure) of a kind of 0Mpa of being applicable to～5Mpa is provided, die life is long, the use of can verting not only can be produced compression casting aluminium piston cold in the band but also can be produced the aluminium piston pressure casting machine of being with interior cold ceramic fibre partially-reinforced composite material piston.
The purpose of this utility model is to adopt following technical proposals to realize: a kind of aluminium piston pressure casting machine; comprise lathe bed; lathe bed top is provided with slide unit; be provided with mold pushing mechanism above the slide unit; have external mold and limit core mechanism on the slide unit; lathe bed inside is provided with middle core mechanism, and lathe bed inside also is provided with inclining rotary mechanism, and the lathe bed outside is provided with protection and automatic opener mechanism.
Described mold pushing mechanism comprises little mold pushing mechanism and big mold pushing mechanism, and big mold pushing mechanism is connected by connecting plate with little mold pushing mechanism.
Described big mold pushing mechanism comprises platen pillar, upper platen, guide post and large tank, and platen pillar lower end is fixed on the slide unit of lathe bed, and the upper end is connected with upper platen, and upper platen is provided with guide post and large tank, and the piston rod of large tank is connected with connecting plate.
Described little mold pushing mechanism comprises small oil tank fixed head, little backform connecting plate, small oil tank, the small oil tank upper end is connected with connecting plate, the lower end is connected with the small oil tank fixed head, and the piston rod of small oil tank is connected with little backform connecting plate, is provided with little backform connecting rod below the little backform connecting plate; Small oil tank fixed head bottom is provided with big backform connecting rod.
Described protection and automatic opener mechanism comprise and are located at lathe bed cover all around, go up cover before lathe bed front the first half is provided with, and the preceding cover bottom of going up is provided with door, and the left and right sides cover is provided with side cover window; Lathe bed top is provided with cylinder, and the bottom is provided with contiguous block in the door, and contiguous block is connected with cylinder; Lathe bed is provided with slide bar in the door, and slide bar is provided with slide block, and slide block is connected with door.
Described inclining rotary mechanism comprises the cylinder bracket that verts, the oil cylinder that verts, contiguous block and tiliting axis vert, the cylinder bracket that verts is fixed in the lathe bed inner bottom part, the cylinder bracket top of verting connects the oil cylinder that verts, vert oil cylinder upper end is connected with the lathe bed landing slab by the contiguous block that verts, and is provided with tiliting axis below the lathe bed landing slab.
Described external mold and limit core mechanism comprise slide unit, external mold oil cylinder, external mold oil cylinder support, external mold connection piece, limit core oil cylinder and limit core contiguous block, left side of face and right side are fixed with external mold oil cylinder left socle and external mold oil cylinder right support respectively on the slide unit, the fixing right oil cylinder of external mold left side oil cylinder and external mold respectively above the left and right external mold oil cylinder support, the left and right oil cylinder of external mold link to each other with corresponding external mold by the left and right piece of external mold respectively; Be fixed with left side core oil cylinder and the right core oil cylinder below the slide unit respectively, left and right limit core oil cylinder links to each other with the limit core with the right core contiguous block by left side core contiguous block respectively.
Core mechanism comprises SMIS connecting plate, SMIS contiguous block, the axis of guide, SMIS oil cylinder and oil cylinder fixed head in described, the oil cylinder fixed head is fixed in below the slide unit by connecting rod, oil cylinder fixed head bottom is fixed with the SMIS oil cylinder, SMIS contiguous block on the piston rod of SMIS oil cylinder passes the oil cylinder fixed head and is located at the SMIS connecting plate is connected, be provided with the axis of guide between the oil cylinder fixed head of SMIS connecting plate and bottom, the axis of guide one end is fixed in the SMIS connecting plate, and the other end passes the pilot hole on the oil cylinder fixed head.
The utility model is according to compression casting theory, aluminium casting for piston consecutive solidification theory and respectively cast the action link automatic control technology; this aluminium piston pressure casting machine is proposed; its main machine structure mainly is made up of external mold and limit core mechanism, middle core mechanism, inclining rotary mechanism, mold pushing mechanism, protection and automatic opener mechanism, connects as one by electrical system and hydraulic pressure, pneumatic system.Finish folding mould in the aluminium casting for piston process, extract the automation that core, pressurization, shutter door etc. are moved.
The utility model mechanical part and not existing together of other aluminium casting for piston equipment are:
1, mold pushing mechanism has been taked high column structure, the backform cylinder is directly vertically linked to each other with backform reduced middle too much transition member, makes connection, transmission more reliable, stable.And matched moulds is better during the backform matched moulds, has reduced colliding with, wearing and tearing between mould.Simultaneously, increase the sealing of mould behind the matched moulds and further guaranteed casting requirement and security under the compression casting situation.Simultaneously, four pillar constructions are realized totally-enclosed protective roof structure easily, increase the aesthetic property of processing safety and equipment.
2, backform has adopted split type backform, has realized under the compression casting situation casting of band Xiang Quan, interior cold-peace ceramic fibre partially-reinforced composite material piston.
Distinguishing feature of the present utility model is:
1, adopts the split mold pushing mechanism, driven the different piece action of split backform by large and small oil cylinder respectively.Make it to produce compression casting aluminium piston cold in the band and can produce cold ceramic fibre partially-reinforced composite material piston in the band.
2, adopted totally-enclosed protective roof structure, the safety of the operator when having guaranteed unexpected the generation arranged under the compression casting situation.The face that totally-enclosed protective cover is faced the operator has adopted automatic opener, the work tempo when having guaranteed casting and the convenience of operation.
3, adopt the pressure detecting of air pressure, hydraulic pressure to report to the police, further guaranteed the security of operation.
Description of drawings
Fig. 1 is the utility model structural representation;
Fig. 2 is a mold pushing mechanism structural representation of the present utility model;
Fig. 3 is the left view of Fig. 2;
Fig. 4 is protection of the present utility model and automatic opener mechanism structure schematic diagram;
Fig. 5 is the left view of Fig. 4;
Fig. 6 is external mold of the present utility model and limit core mechanism, inclining rotary mechanism and SMIS mechanism structure schematic diagram;
Fig. 7 is the left view of Fig. 6;
1 lathe bed wherein, 2. external mold left side oil cylinder, 3. an external mold left side cylinder bracket, 4. external mold Left-wing Federation piece, 5. slide unit, the 6. right connection of external mold piece, the 7. right cylinder bracket of external mold, the 8. right oil cylinder of external mold, 9. the right core oil cylinder, 10, tiliting axis, 11. the right core contiguous block, 12. SMIS contiguous blocks, 13. SMIS connecting plates, 14. the axis of guide, 15. SMIS oil cylinders, 16. oil cylinder fixed heads, 17. left side core contiguous block, 18. left side core oil cylinders, 19. contiguous blocks that vert, the oil cylinder 20. vert, 21. cylinder brackets that vert, 22. important actor support plates, 23. little backform connecting plate, 24. small oil tank fixed heads, 25. connecting plates, 26. upper platen, 27. guide posts, 28. cylinders, 29. large tank, 30. small oil tanks, 31. little backform connecting rods, 32. big backform connecting rod, 33., 34. left sides cover, 35. the preceding cover of going up, 36. right sides cover, 37. back covers, 38. side cover window, 39. contiguous blocks, 40 slide bars, 41. slide block, 42, connecting rod.
The specific embodiment
Below in conjunction with drawings and Examples the utility model is further specified.
Among Fig. 1, lathe bed 1 top is provided with slide unit 5, is provided with mold pushing mechanism above the slide unit 5, has external mold and limit core mechanism on the slide unit 5, core mechanism and inclining rotary mechanism during lathe bed 1 inside is provided with, and lathe bed 1 outside is provided with protection and automatic opener mechanism.
Among Fig. 2, Fig. 3, outer mold mechanism is made of little mold pushing mechanism and big mold pushing mechanism.Wherein big mold pushing mechanism is made up of platen pillar 22, upper platen 26, guide post 27, large tank 29; platen pillar 22 lower ends are fixed on the slide unit 5 of lathe bed 1; the upper end is connected with upper platen 26; upper platen 26 is provided with guide post 27 and large tank 29, and the piston rod of large tank 29 is connected with connecting plate 25.
Little mold pushing mechanism is made up of small oil tank fixed head 24, little backform connecting plate 23, small oil tank 30.Small oil tank 30 upper ends are connected with connecting plate 25, and the lower end is connected with small oil tank fixed head 24, and the piston rod of small oil tank 30 is connected with little backform connecting plate 23, are provided with little backform connecting rod 31 below the little backform connecting plate 23; Small oil tank fixed head 24 bottoms are provided with big backform connecting rod 32.Big mold pushing mechanism is connected by connecting plate 25 with little mold pushing mechanism.Big backform connecting rod 32 links to each other with little backform with big backform respectively with little backform connecting rod 31.
Operation principle: big backform links to each other with large tank 29 with connecting plate 25 by big backform connecting rod 32, little mold pushing mechanism, and the action by large tank drives the on-off action that whole backform is made (comprising little mold pushing mechanism) whole backform; Little backform links to each other with small oil tank by little backform connecting rod 31, little backform connecting plate 23, and the action by small oil tank drives little backform on-off action.
Among Fig. 4, Fig. 5, go up cover 35, left side cover 34, door 33, right side cover 36, side cover window 38, back cover 37, cylinder 28, contiguous block 39, slide block 41, slide bar 40 before protection and automatic opener mechanism comprise and form.Go up cover 35 before lathe bed 1 front the first half is provided with, preceding cover 35 bottoms of going up are provided with door 33, and left and right side cover 34,36 is provided with side cover window 38; Lathe bed 1 top is provided with cylinder 28, and the bottom is provided with contiguous block 39 in the door 33, and contiguous block 39 is connected with cylinder 28; Lathe bed 1 is provided with slide bar 40 in the door 33, and slide bar 40 is provided with slide block 41, and slide block 41 is connected with door 33.
Operation principle: door 33 links to each other with cylinder 28 by contiguous block 39, drives door by the cylinder action and moves on slide bar 40 by slide block 41.
Among Fig. 6, Fig. 7, external mold and limit core mechanism mainly are made up of lathe bed 1, external mold left side oil cylinder 2, external mold left side cylinder bracket 3, external mold Left-wing Federation piece 4, slide unit 5, the right connection of external mold piece 6, the right cylinder bracket 7 of external mold, the right oil cylinder 8 of external mold, the right core oil cylinder 9, the right core contiguous block 11, left side core oil cylinder 18, left side core contiguous block 17.This mechanism is support with lathe bed 1, left side of face and right side are fixed with external mold oil cylinder left socle 3 and external mold oil cylinder right support 7 respectively on the slide unit 5 of lathe bed 1, the fixing right oil cylinder 8 of external mold left side oil cylinder 2 and external mold respectively above the left and right external mold oil cylinder support 3,7, the left and right oil cylinder 2,8 of external mold link to each other with corresponding external mold by the left and right piece 4,6 of external mold respectively.Be fixed with left side core oil cylinder 18 and the right core oil cylinder 9 below the slide unit 5 respectively, left side core oil cylinder 18 links to each other with the limit core with the right core contiguous block 11 by left side core contiguous block 17 respectively with the right core oil cylinder 9.
Operation principle: external mold links to each other with external mold oil cylinder 02,08 by external mold connection piece 04,06 on slide unit 05, by PLC control external mold oil cylinder magnetic valve break-make, realizes that external mold oil cylinder 02,08 drives external mold and finishes opening and closing movement.The side core is linked to each other with the limit core by limit core contiguous block 11,17 by limit core oil cylinder 09,18, by PLC control limit core oil cylinder magnetic valve break-make, realizes that limit core oil cylinder 09,18 drives the limit core and finishes the advance and retreat action.
Middle core mechanism mainly is made up of SMIS connecting plate 13, SMIS contiguous block 12, the axis of guide 14, SMIS oil cylinder 15, oil cylinder fixed head 16, oil cylinder fixed head 16 is fixed in below the slide unit 5 by connecting rod 42, oil cylinder fixed head 16 bottoms are fixed with SMIS oil cylinder 15, SMIS contiguous block 12 on the piston rod of SMIS oil cylinder 15 passes oil cylinder fixed head 16 and is located at SMIS connecting plate 13 is connected, be provided with the axis of guide 14 between the oil cylinder fixed head 16 of SMIS connecting plate 13 and bottom, the axis of guide 14 1 ends are fixed in SMIS connecting plate 12, and the other end passes the pilot hole on the oil cylinder fixed head 16.This mechanism is fixed on lathe bed 1 the inside.
Operation principle: the Piston mould SMIS links to each other with SMIS oil cylinder 15 by SMIS contiguous block 12, when piston rod moves up and down, drives SMIS and finishes knee-action.
Inclining rotary mechanism mainly is made up of the cylinder bracket 21 that verts, the oil cylinder 20 that verts, the contiguous block 19 that verts, tiliting axis 10, lathe bed 1 the inside is fixed in this mechanism, the cylinder bracket 21 that verts is fixed in lathe bed 1 inner bottom part, cylinder bracket 21 tops of verting connect the oil cylinder 20 that verts, oil cylinder 20 upper ends of verting are connected with the lathe bed landing slab by the contiguous block 19 that verts, and are provided with tiliting axis 10 below the lathe bed landing slab.
Operation principle: the lathe bed platform is fixed in lathe bed bottom by link to each other with the oil cylinder 20 that the verts oil cylinder 20 that verts of the contiguous block 19 that verts by the cylinder bracket 21 that verts, and drives the lathe bed platform when verting cylinder action around tiliting axis 10 rotations.
The circulation of the utility model unit fully automatic working is as follows: (to prepare to be cast for initial state)
The limit core moves back → little backform under → SMIS on → putting fiber → put salt core → external mold to close → lathe platen verts → complete machine keep → put ring → big backform soon down → big backform descend → pour into a mould slowly → vert reset → door closes → solidify timing → pressurization → door to be opened → little backform on → greatly on the backform → external mold leaves → SMIS under → the limit core advances → die opening state → cleaning backform burr.
Claims (8)
1. aluminium piston pressure casting machine; comprise lathe bed; lathe bed top is provided with slide unit; be provided with mold pushing mechanism above the slide unit; have external mold and limit core mechanism on the slide unit; lathe bed inside is provided with middle core mechanism, it is characterized in that: lathe bed inside also is provided with inclining rotary mechanism, and the lathe bed outside is provided with protection and automatic opener mechanism.
2. aluminium piston pressure casting machine according to claim 1 is characterized in that: described mold pushing mechanism comprises little mold pushing mechanism and big mold pushing mechanism, and big mold pushing mechanism is connected by connecting plate with little mold pushing mechanism.
3. aluminium piston pressure casting machine according to claim 2; it is characterized in that: described big mold pushing mechanism comprises platen pillar, upper platen, guide post and large tank; platen pillar lower end is fixed on the slide unit of lathe bed; the upper end is connected with upper platen; upper platen is provided with guide post and large tank, and the piston rod of large tank is connected with connecting plate.
4. aluminium piston pressure casting machine according to claim 2, it is characterized in that: described little mold pushing mechanism comprises small oil tank fixed head, little backform connecting plate, small oil tank, the small oil tank upper end is connected with connecting plate, the lower end is connected with the small oil tank fixed head, the piston rod of small oil tank is connected with little backform connecting plate, is provided with little backform connecting rod below the little backform connecting plate; Small oil tank fixed head bottom is provided with big backform connecting rod.
5. aluminium piston pressure casting machine according to claim 1, it is characterized in that: described protection and automatic opener mechanism comprise and are located at lathe bed cover all around, go up cover before lathe bed front the first half is provided with, the preceding cover bottom of going up is provided with door, and the left and right sides cover is provided with side cover window; Lathe bed top is provided with cylinder, and the bottom is provided with contiguous block in the door, and contiguous block is connected with cylinder; Lathe bed is provided with slide bar in the door, and slide bar is provided with slide block, and slide block is connected with door.
6. aluminium piston pressure casting machine according to claim 1, it is characterized in that: described inclining rotary mechanism comprises the cylinder bracket that verts, the oil cylinder that verts, contiguous block and tiliting axis vert, the cylinder bracket that verts is fixed in the lathe bed inner bottom part, the cylinder bracket top of verting connects the oil cylinder that verts, vert oil cylinder upper end is connected with the lathe bed landing slab by the contiguous block that verts, and is provided with tiliting axis below the lathe bed landing slab.
7. aluminium piston pressure casting machine according to claim 1, it is characterized in that: described external mold and limit core mechanism comprise slide unit, external mold oil cylinder, external mold oil cylinder support, external mold connection piece, limit core oil cylinder and limit core contiguous block, left side of face and right side are fixed with external mold oil cylinder left socle and external mold oil cylinder right support respectively on the slide unit, the fixing right oil cylinder of external mold left side oil cylinder and external mold respectively above the left and right external mold oil cylinder support, the left and right oil cylinder of external mold link to each other with corresponding external mold by the left and right piece of external mold respectively; Be fixed with left side core oil cylinder and the right core oil cylinder below the slide unit respectively, left and right limit core oil cylinder links to each other with the limit core with the right core contiguous block by left side core contiguous block respectively.
8. aluminium piston pressure casting machine according to claim 1, it is characterized in that: core mechanism comprises the SMIS connecting plate in described, the SMIS contiguous block, the axis of guide, SMIS oil cylinder and oil cylinder fixed head, the oil cylinder fixed head is fixed in below the slide unit by connecting rod, oil cylinder fixed head bottom is fixed with the SMIS oil cylinder, SMIS contiguous block on the piston rod of SMIS oil cylinder passes the oil cylinder fixed head and is located at the SMIS connecting plate is connected, be provided with the axis of guide between the oil cylinder fixed head of SMIS connecting plate and bottom, the axis of guide one end is fixed in the SMIS connecting plate, and the other end passes the pilot hole on the oil cylinder fixed head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200271899U CN201079828Y (en) | 2007-09-05 | 2007-09-05 | Pressure casting machine for aluminum piston |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200271899U CN201079828Y (en) | 2007-09-05 | 2007-09-05 | Pressure casting machine for aluminum piston |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201079828Y true CN201079828Y (en) | 2008-07-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200271899U Expired - Fee Related CN201079828Y (en) | 2007-09-05 | 2007-09-05 | Pressure casting machine for aluminum piston |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201079828Y (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102151816A (en) * | 2011-03-10 | 2011-08-17 | 山东滨州渤海活塞股份有限公司 | Automatic aluminum piston casting machine |
| CN102527977A (en) * | 2012-02-15 | 2012-07-04 | 河南省中原活塞股份有限公司 | Piston casting machine with large edge core downward-pulling mechanism and central core translation mechanism and casting method of piston casting machine |
| CN102734271A (en) * | 2011-04-06 | 2012-10-17 | 太仓海嘉车辆配件有限公司 | Cooling equipment for air cylinder and oil cylinder |
| CN104550748A (en) * | 2015-01-22 | 2015-04-29 | 山西天海泵业有限公司 | Automatic submersible motor copper end ring casting machine |
| CN105196461A (en) * | 2015-10-15 | 2015-12-30 | 宁波德力东机械科技有限公司 | Brake pad hot-press forming machine |
| CN106694852A (en) * | 2016-12-16 | 2017-05-24 | 山东滨州渤海活塞股份有限公司 | High-rigidity frame bed body for aluminum piston blank casting machine |
| CN107812909A (en) * | 2017-12-18 | 2018-03-20 | 滨州博海精工机械有限公司 | A kind of Novel diesel engine aluminum piston automatic casting machine |
| CN109317621A (en) * | 2018-11-14 | 2019-02-12 | 金华市宝琳工贸有限公司 | Convenient for installing the mold of salt core automatically |
-
2007
- 2007-09-05 CN CNU2007200271899U patent/CN201079828Y/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102151816A (en) * | 2011-03-10 | 2011-08-17 | 山东滨州渤海活塞股份有限公司 | Automatic aluminum piston casting machine |
| CN102151816B (en) * | 2011-03-10 | 2013-04-24 | 山东滨州渤海活塞股份有限公司 | Automatic aluminum piston casting machine |
| CN102734271A (en) * | 2011-04-06 | 2012-10-17 | 太仓海嘉车辆配件有限公司 | Cooling equipment for air cylinder and oil cylinder |
| CN102527977A (en) * | 2012-02-15 | 2012-07-04 | 河南省中原活塞股份有限公司 | Piston casting machine with large edge core downward-pulling mechanism and central core translation mechanism and casting method of piston casting machine |
| CN104550748A (en) * | 2015-01-22 | 2015-04-29 | 山西天海泵业有限公司 | Automatic submersible motor copper end ring casting machine |
| CN104550748B (en) * | 2015-01-22 | 2017-01-18 | 山西天海泵业有限公司 | Automatic submersible motor copper end ring casting machine |
| CN105196461A (en) * | 2015-10-15 | 2015-12-30 | 宁波德力东机械科技有限公司 | Brake pad hot-press forming machine |
| CN106694852A (en) * | 2016-12-16 | 2017-05-24 | 山东滨州渤海活塞股份有限公司 | High-rigidity frame bed body for aluminum piston blank casting machine |
| CN107812909A (en) * | 2017-12-18 | 2018-03-20 | 滨州博海精工机械有限公司 | A kind of Novel diesel engine aluminum piston automatic casting machine |
| CN109317621A (en) * | 2018-11-14 | 2019-02-12 | 金华市宝琳工贸有限公司 | Convenient for installing the mold of salt core automatically |
| CN109317621B (en) * | 2018-11-14 | 2020-08-14 | 金华市宝琳工贸有限公司 | Mould convenient to automatic installation salt core |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080702 Termination date: 20110905 |