CN204747423U - Dysmorphism ejector pin subassembly - Google Patents
Dysmorphism ejector pin subassembly Download PDFInfo
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- CN204747423U CN204747423U CN201520440465.9U CN201520440465U CN204747423U CN 204747423 U CN204747423 U CN 204747423U CN 201520440465 U CN201520440465 U CN 201520440465U CN 204747423 U CN204747423 U CN 204747423U
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- ejector pin
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Abstract
The utility model discloses a dysmorphism ejector pin subassembly, this dysmorphism ejector pin subassembly include the special -shaped ejector pin guide pin bushing of special -shaped ejector pin and encirclement dysmorphism ejector pin, coordinate to have between special -shaped ejector pin and the special -shaped ejector pin guide pin bushing to be used for carminative ejector pin clearance, and special -shaped ejector pin top is equipped with the ejector pin air discharge duct to the indent and reaches the sand groove that leads from ejector pin air discharge duct bottom downwardly extending, and the bottom in ejector pin clearance is equipped with row sand groove. The utility model discloses a dysmorphism ejector pin subassembly sets up the ejector pin air discharge duct through the top at special -shaped ejector pin, and increases the clearance of special -shaped ejector pin and guide pin bushing, has increased the venting area of special -shaped ejector pin, makes the exhaust smooth and easy. And addding in ejector pin air discharge duct bottom and leading sand groove, row sand groove is add to ejector pin clearance bottom, leads gaseous and incomplete sand leading -in the arrange sand groove of sand groove in with the ejector pin air discharge duct, and gaseous directly leading -in to arranging sand groove with the incomplete sand ejector pin clearance in has been avoided the grit to solidify and has been piled up the jam exhaust passage, guarantees that special -shaped ejector pin exhausts unimpededly, protects the psammitolite shaping, carries high yield.
Description
Technical field
The utility model relates to a kind of special-shaped push rod component, particularly a kind of for the special-shaped push rod component in core group.
Background technology
In automobile engine cylinder-body casting, the core angle intensity of cylinder body water jacket core is lower, and special-shaped push rod need be adopted to be ejected from counterdie at core angle, core fracture when preventing from ejecting.The method for exhausting of core is completed by the periphery fit clearance of special-shaped push rod, but traditional special-shaped push rod peripheral clearance is little, leaving area is little, causes exhaust velocity and capacity not, causes sand filling not consolidation bottom core angle, percent defective is very high, secondly, the exhaust bottom, gap of traditional special-shaped push rod does not have sediment outflow groove, and sand is easy to push rod gap to block, the exhaust passage at core angle is blocked, and causes core to be vented and does not freely produce fluffing of moulding sand waste product.
Therefore, need a kind of new technical scheme to solve the problem.
Summary of the invention
For the problem and shortage existing for above-mentioned special-shaped push rod, the purpose of this utility model is to provide one can increase special-shaped push rod leaving area, prevents exhaust passage from blocking, and makes the special-shaped push rod of core angle smooth in exhaust.
For achieving the above object, the utility model adopts following technical scheme: a kind of special-shaped push rod component, this special-shaped push rod component comprises the special-shaped push rod guide pin bushing of special-shaped push rod and encirclement abnormity push rod, the push rod gap for being vented is combined with between described special-shaped push rod and special-shaped push rod guide pin bushing, described special-shaped push rod top is arranged with at least one push rod air discharge duct and leads sand launder from push rod air discharge duct bottom to downward-extension in special-shaped push rod, the bottom in described push rod gap is provided with sediment outflow groove, and push rod gap is communicated with sediment outflow groove, leads sand launder simultaneously and be communicated with sediment outflow groove.
The utility model is compared with prior art: by arranging push rod air discharge duct at the top of special-shaped push rod, and increase the gap of special-shaped push rod and guide pin bushing, increase the leaving area of special-shaped push rod, make smooth in exhaust, avoid blocking, the phenomenon of sand filling not consolidation bottom core angle.And set up in push rod air discharge duct bottom and lead sand launder; sediment outflow groove is set up in bottom, push rod gap; lead sand launder and the gas in push rod air discharge duct and residual sand are imported sediment outflow groove; gas in push rod gap and residual sand directly import to sediment outflow groove; avoid sand solidification accumulated plugging exhaust passage, ensure that the exhaust of special-shaped push rod is unimpeded, protection core is shaping; when avoiding core to eject, core cracking, improves yield rate.
Accompanying drawing explanation
Fig. 1 is the sectional view that the utility model abnormity push rod component coordinates with jacket core die cavity.
Fig. 2 is the top view of the utility model abnormity push rod.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, illustrate the utility model further, following detailed description of the invention should be understood and be only not used in restriction scope of the present utility model for illustration of the utility model, after having read the utility model, the amendment of those skilled in the art to the various equivalent form of value of the present utility model has all fallen within the application's claims limited range.
Refer to shown in Fig. 1 to Fig. 2, this special-shaped push rod component 100 comprises special-shaped push rod 10 and surrounds the special-shaped push rod guide pin bushing 20 of special-shaped push rod 10, the push rod gap 21 for being vented is provided with between abnormity push rod 10 and special-shaped push rod guide pin bushing 20, abnormity push rod 10 top is arranged with push rod air discharge duct 11 and leads sand launder 12 from push rod air discharge duct 11 bottom to downward-extension in special-shaped push rod, the bottom in push rod gap 21 is provided with sediment outflow groove 22, lead sand launder 12 to be communicated with sediment outflow groove 22, push rod gap 21 is communicated with sediment outflow groove 22, gas is down moved by push rod air discharge duct 11 and push rod gap 21, resin sand is toward the filling of air-flow discharge direction, gas in push rod air discharge duct 11 and floating sand enter sediment outflow groove 22 overflow by leading sand launder 12, gas simultaneously in push rod gap 21 and floating sand are also derived by sediment outflow groove 22.
Abnormity push rod 10 top is provided with two push rod air discharge ducts 11, two push rod air discharge ducts 11 are through the two sides of the special-shaped push rod 10 in special-shaped push rod 10 cross-sectional width direction, the interval k of two push rod air discharge ducts 11 is 3mm, the width a scope of each push rod air discharge duct 11 is 0.15-0.25mm, degree of depth b scope is 4-6mm, preferably, the width a of push rod air discharge duct 11 is 0.2mm, degree of depth b is 5mm.Lead sand launder 12 the bottom of each push rod air discharge duct 11 is extended, lead the width of width slightly larger than air discharge duct 11 of sand launder 12, the wider effect led sand launder 12 and then overflow from sediment outflow groove 22 is smoothly entered into by smooth and easy for the floating sand of push rod air discharge duct 11 to reach, prevent the passage of the dead push rod air discharge duct 11 of floating sand plug, and the degree of depth h scope leading sand launder 12 is 9-11mm, preferably, the degree of depth h leading sand launder 12 is 10mm.The width c scope in the push rod gap 21 arranged between abnormity push rod 10 and special-shaped push rod guide pin bushing 20 is 0.15-0.25mm, height d scope is 9-11mm, preferably, the width c in push rod gap 21 is 0.2mm, height d is 10mm, the width a of push rod air discharge duct 11, the data of degree of depth b of abnormity push rod component 100, lead the data of the degree of depth h of sand launder 12, the data of the width c in push rod gap 21, height d are all through that test of many times draws, increase leaving area, reach and make exhaust more unimpeded, avoid the effect blocked.
Please again shown in composition graphs 1, the top of special-shaped push rod component 100 is provided with jacket core die cavity 200 and penetrates sand mouth (not shown), and special-shaped push rod component 100 is surrounded by cylinder body 300.Sand enters jacket core die cavity 200 via the direction F penetrating sand mouth, gas in die cavity 200 by push rod air discharge duct 11 and push rod gap 21 toward moved beneath, resin sand is toward the filling of air-flow discharge direction, gas in push rod air discharge duct 11 and floating sand enter sediment outflow groove 22 overflow by leading sand launder 12, gas in push rod gap 21 and floating sand also enter sediment outflow groove 200 along push rod gap 21, penetrate Sha Zui and pass into solid gas, solid gas is discharged by push rod air discharge duct 11 and push rod gap 21, cured resin sand simultaneously, core angle is shaping, core angle ejects by abnormity push rod 10 in cylinder body 300.
Special-shaped push rod component of the present utility model is by arranging push rod air discharge duct at the top of special-shaped push rod, and increase the gap of special-shaped push rod and guide pin bushing, increase the leaving area of special-shaped push rod, make smooth in exhaust, avoid blocking, the phenomenon of sand filling not consolidation bottom core angle.And set up in push rod air discharge duct bottom and lead sand launder; sediment outflow groove is set up in bottom, push rod gap; lead sand launder and the gas in push rod air discharge duct and residual sand are imported sediment outflow groove; gas in push rod gap and residual sand directly import to sediment outflow groove; avoid sand solidification accumulated plugging exhaust passage, ensure that the exhaust of special-shaped push rod is unimpeded, protection core is shaping; when avoiding core to eject, core cracking, improves yield rate.
Claims (9)
1. a special-shaped push rod component, comprise the special-shaped push rod guide pin bushing of special-shaped push rod and encirclement abnormity push rod, it is characterized in that, the push rod gap for being vented is combined with between described special-shaped push rod and special-shaped push rod guide pin bushing, described special-shaped push rod top is arranged with at least one push rod air discharge duct and leads sand launder from push rod air discharge duct bottom to downward-extension in special-shaped push rod, the bottom in described push rod gap is provided with sediment outflow groove, and push rod gap is communicated with sediment outflow groove, leads sand launder simultaneously and is communicated with sediment outflow groove.
2. special-shaped push rod component according to claim 1, is characterized in that: described push rod air discharge duct and lead the two sides that sand launder all runs through push rod.
3. special-shaped push rod component according to claim 2, is characterized in that: described push rod air discharge duct and lead the two sides that sand launder all runs through the special-shaped push rod in special-shaped push rod cross-sectional width direction.
4. special-shaped push rod component according to claim 1, is characterized in that: the groove depth of described push rod air discharge duct is 4-6mm, and the width of push rod air discharge duct is 0.15-0.25mm.
5. special-shaped push rod component according to claim 1, is characterized in that: described in lead sand launder groove depth be 9-11mm.
6. special-shaped push rod component according to claim 1, is characterized in that: described in lead sand launder width be greater than the width of push rod air discharge duct.
7. special-shaped push rod component according to claim 1, is characterized in that: the width in described push rod gap is 0.15-0.25mm, and the height in push rod gap is 9-11mm.
8. special-shaped push rod component according to claim 1, is characterized in that: described push rod air discharge duct is respectively two with the quantity leading sand launder.
9. special-shaped push rod component according to claim 8, is characterized in that: described two push rod air discharge ducts be spaced apart 3mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520440465.9U CN204747423U (en) | 2015-06-25 | 2015-06-25 | Dysmorphism ejector pin subassembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520440465.9U CN204747423U (en) | 2015-06-25 | 2015-06-25 | Dysmorphism ejector pin subassembly |
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| Publication Number | Publication Date |
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| CN204747423U true CN204747423U (en) | 2015-11-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520440465.9U Active CN204747423U (en) | 2015-06-25 | 2015-06-25 | Dysmorphism ejector pin subassembly |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109622884A (en) * | 2019-02-20 | 2019-04-16 | 苏州明志科技有限公司 | A kind of exhaust structure for core box |
| CN109940126A (en) * | 2019-05-05 | 2019-06-28 | 合肥江淮铸造有限责任公司 | One kind being vented plunger tip bar with form |
| CN109954839A (en) * | 2017-12-14 | 2019-07-02 | 丰田自动车株式会社 | The forming method of core and the molding machine of core |
| CN113429097A (en) * | 2021-08-11 | 2021-09-24 | 重庆灏宁生物技术有限公司 | Sludge fermentation equipment |
| CN113664151A (en) * | 2021-08-18 | 2021-11-19 | 盛瑞传动股份有限公司 | Core side core-pulling box |
| CN114769520A (en) * | 2022-04-29 | 2022-07-22 | 昆山新三信机械模具有限公司 | Ejector rod matching mechanism for sand core mold |
-
2015
- 2015-06-25 CN CN201520440465.9U patent/CN204747423U/en active Active
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109954839A (en) * | 2017-12-14 | 2019-07-02 | 丰田自动车株式会社 | The forming method of core and the molding machine of core |
| CN109622884A (en) * | 2019-02-20 | 2019-04-16 | 苏州明志科技有限公司 | A kind of exhaust structure for core box |
| CN109622884B (en) * | 2019-02-20 | 2023-12-26 | 苏州明志科技股份有限公司 | Exhaust structure for core box |
| CN109940126A (en) * | 2019-05-05 | 2019-06-28 | 合肥江淮铸造有限责任公司 | One kind being vented plunger tip bar with form |
| CN113429097A (en) * | 2021-08-11 | 2021-09-24 | 重庆灏宁生物技术有限公司 | Sludge fermentation equipment |
| CN113429097B (en) * | 2021-08-11 | 2024-05-14 | 怡灏环境技术有限公司 | Sludge fermentation equipment |
| CN113664151A (en) * | 2021-08-18 | 2021-11-19 | 盛瑞传动股份有限公司 | Core side core-pulling box |
| CN113664151B (en) * | 2021-08-18 | 2023-09-15 | 盛瑞传动股份有限公司 | Core side core-pulling box |
| CN114769520A (en) * | 2022-04-29 | 2022-07-22 | 昆山新三信机械模具有限公司 | Ejector rod matching mechanism for sand core mold |
| CN114769520B (en) * | 2022-04-29 | 2023-11-07 | 昆山新三信机械模具有限公司 | Ejector rod matching mechanism for sand core die |
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