CN205629277U - Ejector pin exhaust mechanism - Google Patents
Ejector pin exhaust mechanism Download PDFInfo
- Publication number
- CN205629277U CN205629277U CN201620342198.6U CN201620342198U CN205629277U CN 205629277 U CN205629277 U CN 205629277U CN 201620342198 U CN201620342198 U CN 201620342198U CN 205629277 U CN205629277 U CN 205629277U
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- CN
- China
- Prior art keywords
- push rod
- big
- little
- top board
- core box
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Abstract
The utility model discloses an ejector pin exhaust mechanism, including the core box, be equipped with the big ejector pin mounting hole of its inner chamber of intercommunication on the core box, slidable mounting has big ejector pin in the big ejector pin mounting hole, the tail end of big ejector pin stretches out outside the core box, the trailing end connection of big ejector pin has and is used for ordering about the gliding big ejector pin link of big ejector pin, be equipped with the little ejector pin mounting hole that link up its both ends on the big ejector pin, slidable mounting has little ejector pin in the little ejector pin mounting hole, the tail end of the arrogant ejector pin of tail end of little ejector pin stretches out outside the little ejector pin mounting hole, be equipped with the little ejector pin link that is used for both relatively fixed between little ejector pin and the core box. The utility model discloses it is smooth, thorough to make gas outgoing.
Description
Technical field
This utility model relates to a kind of push rod exhaust gear.
Background technology
Core be mixed by a certain percentage by foundry sand, resin and some additional things after, the solid structure with special shape made, be used for form the part that the inner chamber of foundry goods, hole and foundry goods profile can not be shaked out.Core box is to manufacture core or other equipments used by kind refractory material fuse.Its inner chamber and the profile of fuse and equivalently-sized.Hot box process is a kind of method that in Foundry Production, machine manufactures core.Sand material foundry sand, thermosetting resin and firming agent being mixed into is injected in the core box with heater, it is heated to 180～250 DEG C, the sand material making box surface is heated, under temperature action, its binding agent gets final product polycondensation within a very short time and hardens, form core, be not necessary to enter baker again and dry, there is the advantages such as shortening production cycle.
Coremaking is the important step of casting process, and core quality directly affects casting accuracy and surface quality.Thermal core casing core manufacturing is high owing to having production efficiency, with short production cycle, and core quality high (intensity is high, any surface finish, and size is accurate), core is difficult to the features such as the moisture absorption, in production practices, is particularly widely used in the complicated cores such as cylinder head water interlayer produce.
It is defect common during thermal core casing core manufacturing that core is penetrated unreal, especially has pit, and the position that pit depth is deep, area is little in core box, and when coremaking, the easy aerofluxus in this position is smooth, easily causes core herein penetrate discontented or penetrate unreal, causes core to scrap.
Summary of the invention
The purpose of this utility model is for a kind of push rod exhaust gear applied on core box of above-mentioned not enough offer, to improve its exhaust gas conditions.
For achieving the above object, this utility model includes core box, it is structurally characterized in that on described core box the big push rod installing hole being communicated with its inner chamber, it is slidably fitted with big push rod in big push rod installing hole, the tail end of big push rod stretches out outside core box, the tail end of big push rod connects to be had for ordering about the big push rod link that big push rod slides, big push rod is provided with the little push rod installing hole at its two ends through, it is slidably fitted with little push rod in little push rod installing hole, the tail end of the arrogant push rod of tail end of little push rod stretches out outside little push rod installing hole, it is provided with between little push rod and core box for by both relatively-stationary little push rod links.
Described little push rod link includes sticking together and successively away from little top board, the little top board cover plate of core box, the tail end of little push rod is provided with little push rod union joint, little top board is provided with and passes for little push rod and little push rod union joint is fixed its interior counterbore, at least two it is provided with by both support columns spaced apart between little top board and core box, little top board cover plate, little top board, support column are provided with the bolt mounting hole being connected, and little top board cover plate, little top board, support column are fixedly connected on core box by sequentially passing through the fixing bolt of three bolt mounting holes.
Described big push rod link includes sticking together and successively away from big top board, the big top board cover plate of core box, the tail end of big push rod is provided with big push rod union joint, big top board is provided with and passes for big push rod and big push rod union joint is fixed its interior counterbore, big top board is fixed together with big top board cover plate, big top board, big top board cover plate are located between little top board and core box, being equipped with, on big top board, big top board cover plate, the through hole passed for support column, the through hole on the arrogant top board of support column, big top board cover plate passes.
Described big push rod installing hole includes the upper hole section near core box inner chamber and the bottom hole section away from core box inner chamber, and wherein the diameter of bottom hole section is more than the diameter of upper hole section.
The passage of hole, its underpart section it is communicated with on described big push rod.
Described little push rod installing hole includes the upper hole section near core box inner chamber and the bottom hole section away from core box inner chamber, and wherein the diameter of bottom hole section is more than the diameter of upper hole section.
This utility model is generally directed on core box have the position of deep recessed structure and arranges, big push rod installing hole is located at the deep recess of core box, gap between big push rod and big push rod installing hole, between little push rod and little push rod installing hole forms two exhaust passages, adds the leaving area at dell；Simultaneously big between push rod and little push rod, there is relative motion between big push rod and big push rod installing hole, the most do not easily cause the blocking of exhaust clearance, gas is discharged smooth, thoroughly, and this utility model need not frequently change spare part simultaneously；Final sand core structure is complete, consolidation.
Accompanying drawing explanation
Below in conjunction with the accompanying drawings detailed description of the invention of the present utility model is further described in detail:
Fig. 1 is the structural representation being suitable for core box of the present utility model；
Fig. 2 structural representation of the present utility model.
Detailed description of the invention
Referring to the drawings, this push rod exhaust gear includes core box 1, the big push rod installing hole 2 of its inner chamber it is communicated with on core box 1, it is slidably fitted with big push rod 3 in big push rod installing hole 2, the tail end of big push rod 3 stretches out outside core box 1, the tail end of big push rod 3 connects to be had for ordering about the big push rod link that big push rod 3 slides, big push rod 3 is provided with the little push rod installing hole 16 at its two ends through, little push rod 5 it is slidably fitted with in little push rod installing hole 16, the tail end of the arrogant push rod of tail end 3 of little push rod 5 stretches out outside little push rod installing hole 16, it is provided with between little push rod 5 and core box 1 for by both relatively-stationary little push rod links.This push rod exhaust gear is generally directed on core box 1 have the position of deep recessed structure and arranges, big push rod installing hole 2 is located at the deep recess of core box 1, gap between big push rod 3 and big push rod installing hole 2, between little push rod 5 and little push rod installing hole 16 forms two exhaust passages, adds the leaving area at dell；Simultaneously big between push rod 3 and little push rod 5, there is relative motion between big push rod 3 and big push rod installing hole 2, the most do not easily cause the blocking of exhaust clearance, gas is discharged smooth, thoroughly, and this utility model need not frequently change spare part simultaneously；Final sand core structure is complete, consolidation.
In the present embodiment, little push rod link includes sticking together and successively away from the little top board 7 of core box 1, little top board cover plate 8, the tail end of little push rod 5 is provided with little push rod union joint 14, little top board 7 is provided with and passes for little push rod 5 and little push rod union joint 14 is fixed its interior counterbore, little push rod union joint 14 can be the ring edge being located on little push rod 5 or be fixed in the enlarged head on little push rod 5, two it are provided with by both support columns 9 spaced apart between little top board 7 and core box 1, little top board cover plate 8, little top board 7, support column 9 is provided with the bolt mounting hole being connected, little top board cover plate 8, little top board 7, support column 9 is fixedly connected on core box 1 by sequentially passing through the fixing bolt 10 of three bolt mounting holes.It is simple that this little push rod link has making, advantage easy for installation, can be standardized making for different core boxes 1.Big push rod link includes sticking together and successively away from the big top board 11 of core box 1, big top board cover plate 12, the tail end of big push rod 3 is provided with big push rod union joint 15, big top board 11 is provided with and passes for big push rod 3 and big push rod union joint 15 is fixed its interior counterbore, big push rod union joint 15 can be the ring edge being located on big push rod 3 or be fixed in the enlarged head on big push rod 3, big top board 11 is fixed together with big top board cover plate 12, big top board 11, big top board cover plate 12 is located between little top board 7 and core box 1, big top board 11, it is equipped with, on big top board cover plate 12, the through hole passed for support column 9, the arrogant top board of support column 9 11, through hole on big top board cover plate 12 passes.Little push rod link can be connected in frame during use, the driving means of linear movement output is installed in frame, this driving means can drive big push rod link to move, big push rod link drives big push rod 3 to move, big push rod 3 is inserted in core box 1, core box 1 can be ejected, big push rod 3 adverse movement, can be by big push rod 3 and big push rod installing hole 2, between little push rod 5 and little push rod installing hole 16, the fine sand of gap is taken out of, realize the automatic cleaning to exhaust clearance, it is not difficult to find out by this occupation mode, big push rod link in the present embodiment and little push rod link can be with the use of, it is advantageously implemented the automatization that core produces.
Big push rod installing hole 2 includes the upper hole section near core box 1 inner chamber and the bottom hole section away from core box 1 inner chamber, wherein the diameter of bottom hole section is more than the diameter of upper hole section, form spacing between the upper hole Duan Yu great push rod 3 of big push rod installing hole 2 and be slightly less than the gap of sand grains diameter, sand aerofluxus can only can not be run in this gap, the openst exhaust passage is formed between the bottom hole Duan Yu great push rod 3 of big push rod installing hole 2, more smooth and easy during aerofluxus.It is communicated with the passage 13 of hole, its underpart section on big push rod 3, gas can be discharged at passage 13, discharge fine sand, improve exhaust effect further.
Little push rod installing hole 16 includes the upper hole section near core box 1 inner chamber and the bottom hole section away from core box 1 inner chamber, wherein the diameter of bottom hole section is more than the diameter of upper hole section, form spacing between the upper hole Duan Yu little push rod 5 of little push rod installing hole 16 and be slightly less than the gap of sand grains diameter, sand aerofluxus can only can not be run in this gap, the openst exhaust passage is formed between the bottom hole Duan Yu little push rod 5 of little push rod installing hole 16, more smooth and easy during aerofluxus.
Claims (6)
1. a push rod exhaust gear, including core box (1), it is characterized in that being communicated with on described core box (1) the big push rod installing hole (2) of its inner chamber, it is slidably fitted with big push rod (3) in big push rod installing hole (2), the tail end of big push rod (3) stretches out core box (1) outward, the tail end of big push rod (3) connects to be had for ordering about the big push rod link that big push rod (3) slides, big push rod (3) is provided with the little push rod installing hole (16) at its two ends through, it is slidably fitted with little push rod (5) in little push rod installing hole (16), the tail end of the arrogant push rod of the tail end (3) of little push rod (5) stretches out little push rod installing hole (16) outward, it is provided with between little push rod (5) and core box (1) for by both relatively-stationary little push rod links.
Push rod exhaust gear the most according to claim 1, it is characterized in that described little push rod link includes sticking together and successively away from the little top board (7) of core box (1), little top board cover plate (8), the tail end of little push rod (5) is provided with little push rod union joint (14), little top board (7) is provided with and passes for little push rod (5) and little push rod union joint (14) is fixed its interior counterbore, at least two it is provided with by both support columns (9) spaced apart between little top board (7) and core box (1), little top board cover plate (8), little top board (7), support column (9) is provided with the bolt mounting hole being connected, little top board cover plate (8), little top board (7), support column (9) is fixedly connected on core box (1) by sequentially passing through the fixing bolt (10) of three bolt mounting holes.
Push rod exhaust gear the most according to claim 2, it is characterized in that described big push rod link includes sticking together and successively away from the big top board (11) of core box (1), big top board cover plate (12), the tail end of big push rod (3) is provided with big push rod union joint (15), big top board (11) is provided with and passes for big push rod (3) and big push rod union joint (15) is fixed its interior counterbore, big top board (11) is fixed together with big top board cover plate (12), big top board (11), big top board cover plate (12) is located between little top board (7) and core box (1), big top board (11), it is equipped with, on big top board cover plate (12), the through hole passed for support column (9), support column (9) arrogant top board (11), through hole on big top board cover plate (12) passes.
Push rod exhaust gear the most according to claim 1, it is characterized in that described big push rod installing hole (2) includes the upper hole section near core box (1) inner chamber and the bottom hole section away from core box (1) inner chamber, wherein the diameter of bottom hole section is more than the diameter of upper hole section.
Push rod exhaust gear the most according to claim 4, is characterized in that being communicated with on described big push rod (3) passage (13) of hole, its underpart section.
6. according to the push rod exhaust gear described in any claim in claim 1 to 5, it is characterized in that described little push rod installing hole (16) includes the upper hole section near core box (1) inner chamber and the bottom hole section away from core box (1) inner chamber, wherein the diameter of bottom hole section is more than the diameter of upper hole section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620342198.6U CN205629277U (en) | 2016-04-22 | 2016-04-22 | Ejector pin exhaust mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620342198.6U CN205629277U (en) | 2016-04-22 | 2016-04-22 | Ejector pin exhaust mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205629277U true CN205629277U (en) | 2016-10-12 |
Family
ID=57062290
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620342198.6U Expired - Fee Related CN205629277U (en) | 2016-04-22 | 2016-04-22 | Ejector pin exhaust mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205629277U (en) |
Cited By (2)
| 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 |
| 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 |
-
2016
- 2016-04-22 CN CN201620342198.6U patent/CN205629277U/en not_active Expired - Fee Related
Cited By (3)
| 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 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161012 Termination date: 20180422 |
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| CF01 | Termination of patent right due to non-payment of annual fee |