CN102847909B - Small molding die for pneumatic cylinder with radiating fins - Google Patents
Small molding die for pneumatic cylinder with radiating fins Download PDFInfo
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- CN102847909B CN102847909B CN201210090835.1A CN201210090835A CN102847909B CN 102847909 B CN102847909 B CN 102847909B CN 201210090835 A CN201210090835 A CN 201210090835A CN 102847909 B CN102847909 B CN 102847909B
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- mold core
- sprue
- secondary slide
- master slider
- slide block
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Abstract
The invention discloses a small molding die for pneumatic cylinders with radiating fins. The small molding die comprises a slide block component, an upper die frame, a lower die frame, and an upper die core and a lower die core with small-size cavities in a shape of the pneumatic cylinder with radiating fins, wherein the upper die frame is provided with a sprue gate; the lower die frame is provided with a sprue spreader matched with the sprue gate; the upper die core is provided with an upper half part of a main flow channel; the upper half part of the main flow channel is matched with the sprue gate; the lower die core is provided with a lower half part of the main flow channel; the lower half part of the main flow channel is matched with the sprue spreader; the sprue gate and the sprue spreader are respectively arranged correspondingly to radiating fin slot parts of the upper cavities of the upper die core and the lower die core; the bottoms of the radiating fin slots of the upper cavities of the upper die core and the lower die core are provided with air discharge ducts; the lower die core is provided with an exhaust flow channel; the exhaust flow channel is positioned at the tail end of the flow direction of the metal liquid in the cavities; the lower die frame is provided with a lower half part of an exhaust main channel block; and the upper die frame is provided with an upper half part of the exhaust main channel block. The small molding die is good in molding effect, and the molded product is low in cold shut occurrence rate and good in exhaust effect.
Description
Technical field
The present invention relates to a kind of die casting, particularly the mould of small-sized flange-cooled air pressure cylinder body.
Background technology
Die cast is the common mode of production of the one in present industrial production, and forming principle is exactly that metal material is injected to die casting cooling forming by die casting machine.
At present, the high-speed small-size engine of the use such as Fight Fire in Forest, gardens pruning, its cylinder surface is substantially all provided with the integrated radiating sheet of One's name is legion, and these fin are thin-wall construction, and the design comparison of the film trap that therefore dispels the heat in its corresponding Design of Die is narrow, simultaneously also darker, the wheel rim place temperature of film trap of making like this to dispel the heat is lower, and the molten metal of coming in from sprue gate is during through multiple heat radiation film trap, and flow rate of metal is slower, therefore easily produce cold shut, pore, the scrappage of product is high; Simultaneously in its Design of Die, in order to reduce die sinking difficulty, on die casting the design of exhaust outlet all smaller, make like this product in press casting procedure, easily produce bubble.
Summary of the invention
The object of the invention is provides a kind of good forming effect in order to solve above-mentioned the deficiencies in the prior art, and cold shut occurrence rate is low, simultaneously the mould of the small-sized flange-cooled air pressure cylinder body of good exhaust effect.
To achieve these goals, the mould of the designed small-sized flange-cooled air pressure cylinder body of the present invention, comprise slide block assembly, upper framed, low mold frame and all with upper mold core and the lower mold core of the die cavity of small-sized flange-cooled pneumatic cylinder shape, the described framed sprue gate that is provided with, low mold frame is provided with the spreader coordinating with sprue gate, described upper mold core is provided with the first half of sprue, the first half of sprue coordinates with sprue gate, described lower mold core is provided with the latter half of sprue, the latter half of sprue coordinates with spreader, described upper mold core, the corresponding setting of die cavity in lower mold core, it is characterized in that described sprue gate, spreader respectively with upper mold core, the corresponding setting of fin slot part of lower mold core upper impression, the fin trench bottom of described upper mold core, lower mold core upper impression is equipped with air discharge duct, described lower mold core is provided with grate flow channel, grate flow channel is positioned at the terminal position that its die cavity inner metal liquid flows to, in low mold frame, be provided with the latter half of exhaust main passage block, in upper the first half that is provided with exhaust main passage block on framed, the first half of exhaust main passage block coordinates and is connected with grate flow channel with the latter half of exhaust main passage block.
In die cast, use above-mentioned mould, product die cast better effects if, and also cold shut occurrence rate is low, and the exhaust effect of the invention is simultaneously good.
As preferably, described slide block assembly is by a master slider, two secondary slide blocks and and master slider, main Angle Pin and secondary Angle Pin that secondary slide block coordinates form, in low mold frame, have and be a master slider groove and two the secondary slide block slots that " product " font is arranged, master slider groove is positioned in the middle of two secondary slide block slots, on the two side of master slider groove, be equipped with main running rail, on the two side of secondary slide block slot, be equipped with secondary slide rail, master slider is by being fixed in master slider groove with main running rail, two secondary slide blocks are all independently fixed in two secondary slide block slots by coordinating with secondary slide rail, master slider is provided with main Angle Pin mating holes, secondary slide block is provided with secondary Angle Pin mating holes, the corresponding master slider of main Angle Pin be fixed on framed on, the corresponding secondary slide block of secondary Angle Pin be fixed on framed on, this priority scheme project organization is simple, make matched moulds, stripping operation is easy, coordinate and be provided with top plate member at low mold frame back, described top plate member is made up of with the parallel thimble that is erected at the quantification on top board top board, the thimble of quantification runs through the latter half, low mold frame and the lower mold core of exhaust main passage block, this preferred version makes after the demoulding, and shaped article pickup is convenient.
The mould of the mini zone fin air pressure cylinder body that the present invention obtains, its sprue gate, spreader respectively with the corresponding setting of fin slot part of upper and lower core rod upper impression, so just shortened the distance of the fin slot part of sprue gate and die cavity, molten metal can better enter in heat radiation film trap by pressure; And the setting of air discharge duct, make can reduce the air pressure of the fin trench bottom of upper and lower core rod upper impression in press casting procedure, thereby reduce the cold shut of the fin section outer surface of product; Exhaust effect of the present invention is good simultaneously, and overall construction design is simple, and matched moulds, the demoulding are all more convenient.
Brief description of the drawings
Fig. 1 is the structural representation of low mold frame in embodiment 1;
Fig. 2 is upper framed structural representation in embodiment 1;
Fig. 3 is the longitudinal cross-section schematic diagram after low mold frame in embodiment 1, upper framed matched moulds;
Fig. 4 is the transverse sectional view after low mold frame in embodiment 1, upper framed matched moulds;
Fig. 5 is the partial schematic diagram of the fin slot part of upper and lower core rod upper impression in embodiment 1;
Fig. 6 is A-A cutaway view in Fig. 1;
Fig. 7 is B place enlarged drawing in Fig. 6;
Fig. 8 is structural representation after the first half of exhaust main passage block in embodiment 1 coordinates with the latter half of exhaust main passage block.
In figure: low mold frame 1, lower mold core 11, spreader 12, master slider groove 13, secondary slide block slot 14, grate flow channel 112, the first half 113 of sprue, heat radiation film trap 122, air discharge duct 1221, upper framed 2, upper mold core 21, sprue gate 22, the latter half 211 of sprue, the latter half 3 of exhaust main passage block, step 31, the exhaust main passage 34 of S shape, the first half 4 of exhaust main passage block, main running rail 51, secondary slide rail 52, master slider 61, secondary slide block 62, main Angle Pin mating holes 611, secondary Angle Pin mating holes 621, main Angle Pin 71, secondary Angle Pin 72, top board 8, thimble 81, barrel mouth 9.
Detailed description of the invention
Below in conjunction with drawings and Examples, the present invention is further described.
Embodiment 1:
As Fig. 1, Fig. 2, shown in Fig. 3 and Fig. 4, the mould of the small-sized flange-cooled air pressure cylinder body that the present embodiment provides, comprises top plate member, slide block assembly, upper framed 2, low mold frame 1 and lay respectively at framed 2, low mold frame 1 center, and all with upper mold core 21 and the lower mold core 11 of the die cavity of small-sized flange-cooled pneumatic cylinder shape, described framed 2 are provided with sprue gate 22, low mold frame 1 is provided with the spreader 12 coordinating with sprue gate 22, described upper mold core 21 is provided with the first half 211 of sprue, and the first half 211 of sprue coordinates with sprue gate 22, and described lower mold core 11 is provided with the latter half 113 of sprue, the latter half 113 of sprue coordinates with spreader 12, described upper mold core 21, the corresponding setting of die cavity in lower mold core 11, top plate member is made up of with the parallel thimble 81 being erected on top board 8 top board 8, as Fig. 6, shown in Fig. 7, thimble 81 runs through the latter half 3 of exhaust main passage block, low mold frame 1 and lower mold core 11, described sprue gate 22, spreader 12 respectively with upper mold core 21, the corresponding setting of heat radiation film trap 122 parts of lower mold core 11 upper impression, as shown in Figure 5, the heat radiation film trap 122 part bottoms of described upper mold core 21, lower mold core 11 upper impression are equipped with air discharge duct 1221, and the preferred thickness of described air discharge duct 1221 is 0.015-0.02 silk, described lower mold core 11 is provided with the grate flow channel 112 of two symmetrical structures, grate flow channel 112 is positioned at the terminal position that its die cavity inner metal liquid flows to, in low mold frame 1, be provided with the latter half 3 of exhaust main passage block, on upper framed 2, be provided with the first half 4 of exhaust main passage block, the first half 4 of exhaust main passage block coordinates and is connected with grate flow channel 112 with the latter half of exhaust main passage block 3.
As shown in Figure 8, in the present embodiment, the first half 4 of exhaust main passage block and the latter half 3 of exhaust main passage block coordinate the exhaust main passage 34 that forms S shape, top bar 31 in the latter half 3 of exhaust main passage block simultaneously, step 31 is positioned at the interface of grate flow channel 112 and exhaust main passage 34, above-mentioned design can slow down the flow velocity of molten metal, ensures enough molten metals and enters.
Described slide block assembly is by a master slider 61, two secondary slide blocks 62 and with master slider 61, main Angle Pin 71 and secondary Angle Pin 72 that secondary slide block 62 coordinates form, in low mold frame 1, have and be a master slider groove 13 and two the secondary slide block slots 14 that " product " font is arranged, master slider groove 13 is positioned in the middle of two secondary slide block slots 14, on the two side of master slider groove 13, be equipped with main running rail 51, on the two side of secondary slide block slot 14, be equipped with secondary slide rail 52, master slider 61 is by being fixed in master slider groove 13 with main running rail 51, two secondary slide blocks 62 are all independently fixed in two secondary slide block slots 14 by coordinating with secondary slide rail 52, master slider 61 is provided with main Angle Pin mating holes 611, secondary slide block 62 is provided with secondary Angle Pin mating holes 621, the corresponding master slider 61 of main Angle Pin 71 is fixed on framed 2, the corresponding secondary slide block 62 of secondary Angle Pin 72 is fixed on framed 2.This priority scheme project organization is simple, makes matched moulds, die sinking easy and simple to handle.
The present embodiment is in concrete production and application, sprue gate 22 on upper framed 2 coordinates with the barrel mouth 9 of die casting machine, preferably DCC280 die casting machine, molten metal in barrel enters from sprue gate 22 under pressure, due to sprue gate 22 and the corresponding setting of heat radiation film trap 122 part of upper and lower core rod upper impression, so just shortened the distance of sprue gate 22 with heat radiation film trap 122 parts of die cavity, molten metal can better enter in heat radiation film trap 122 by pressure; And the setting of air discharge duct 1221, making the air pressure of the heat radiation film trap 122 part bottoms that can reduce upper and lower core rod upper impression in press casting procedure, thereby reduce the cold shut of the fin section outer surface of product, exhaust effect of the present invention is good simultaneously.
Claims (3)
1. the mould of a small-sized flange-cooled air pressure cylinder body, comprise slide block assembly, upper framed (2), low mold frame (1) and all with upper mold core (21) and the lower mold core (11) of the die cavity of small-sized flange-cooled pneumatic cylinder shape, described framed (2) are provided with sprue gate (22), low mold frame (1) is provided with the spreader (12) coordinating with sprue gate (22), described upper mold core (21) is provided with the first half (211) of sprue, the first half (211) of sprue coordinates with sprue gate (22), described lower mold core (11) is provided with the latter half (113) of sprue, the latter half (113) of sprue coordinates with spreader (12), described upper mold core (21), the corresponding setting of die cavity in lower mold core (11), it is characterized in that described sprue gate (22), spreader (12) respectively with upper mold core (21), the corresponding setting of heat radiation film trap (122) part of lower mold core (11) upper impression, heat radiation film trap (122) the part bottom of described upper mold core (21), lower mold core (11) upper impression is equipped with air discharge duct (1221), described lower mold core (11) is provided with grate flow channel (112), grate flow channel (112) is positioned at the terminal position that its die cavity inner metal liquid flows to, in low mold frame (1), be provided with the latter half (3) of exhaust main passage block, on upper framed (2), be provided with the first half (4) of exhaust main passage block, the first half (4) of exhaust main passage block coordinates and is connected with grate flow channel (112) with the latter half (3) of exhaust main passage block.
2. the mould of small-sized flange-cooled air pressure cylinder body according to claim 1, it is characterized in that described slide block assembly is by a master slider (61), two secondary slide blocks (62) and with master slider (61), the main Angle Pin (71) that secondary slide block (62) coordinates and secondary Angle Pin (72) form, in low mold frame (1), have and be a master slider groove (13) and two the secondary slide block slots (14) that " product " font is arranged, master slider groove (13) is positioned in the middle of two secondary slide block slots (14), on the two side of master slider groove (13), be equipped with main running rail (51), on the two side of secondary slide block slot (14), be equipped with secondary slide rail (52), master slider (61) is by being fixed in master slider groove (13) with main running rail (51), two secondary slide blocks (62) are all by coordinating and be independently fixed in two secondary slide block slots (14) with secondary slide rail (52), master slider (61) is provided with main Angle Pin mating holes (611), secondary slide block (62) is provided with secondary Angle Pin mating holes (621), the corresponding master slider of main Angle Pin (71) (61) is fixed on framed (2), secondary Angle Pin (72) corresponding secondary slide blocks (62) are fixed on framed (2).
3. the mould of small-sized flange-cooled air pressure cylinder body according to claim 1 and 2, it is characterized in that coordinating and being provided with top plate member at low mold frame (1) back, described top plate member is made up of with the parallel thimble (81) that is erected at the quantification on top board (8) top board (8), and the thimble (81) of quantification runs through the latter half (3) of exhaust main passage block, low mold frame (1) and lower mold core (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210090835.1A CN102847909B (en) | 2012-03-31 | 2012-03-31 | Small molding die for pneumatic cylinder with radiating fins |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210090835.1A CN102847909B (en) | 2012-03-31 | 2012-03-31 | Small molding die for pneumatic cylinder with radiating fins |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102847909A CN102847909A (en) | 2013-01-02 |
| CN102847909B true CN102847909B (en) | 2014-08-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210090835.1A Active CN102847909B (en) | 2012-03-31 | 2012-03-31 | Small molding die for pneumatic cylinder with radiating fins |
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| CN (1) | CN102847909B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106623852A (en) * | 2017-01-24 | 2017-05-10 | 苏州松翔电通科技有限公司 | Aluminum alloy pressure casting die |
| CN107999723B (en) * | 2017-12-28 | 2024-03-19 | 东莞市长长昶达金属制品有限公司 | Die casting die for anti-theft lock shell |
| CN109759559A (en) * | 2019-03-22 | 2019-05-17 | 宁波斯贝科技缸套有限公司 | One kind being used for the molding compression mod mold insert structure of cylinder body |
| CN110802210B (en) * | 2019-11-12 | 2021-07-20 | 珠海市润星泰电器有限公司 | Mould with exhausting function |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH071080A (en) * | 1992-07-30 | 1995-01-06 | Masaru Nemoto | Special molding core |
| CN100335207C (en) * | 2004-04-20 | 2007-09-05 | 东芝机械株式会社 | Die-casting device and vacuum process |
| CN201470858U (en) * | 2009-09-01 | 2010-05-19 | 乔治费歇尔汽车产品(苏州)有限公司 | Casting mold of automobile engine cylinder |
| CN101934565A (en) * | 2009-09-25 | 2011-01-05 | 胡元乾 | Die mechanism of collapsible die core |
| CN201618841U (en) * | 2009-12-30 | 2010-11-03 | 佛山市南海区佳伟金属制品有限公司 | Rotary die-casting mold |
| CN202621873U (en) * | 2012-03-31 | 2012-12-26 | 宁波市佳利来机械制造有限公司 | Forming die of small-sized pneumatic cylinder body with cooling fins |
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