CN208131918U - Can self-return the built-in exhaust jacking rod mechanism of upper core box - Google Patents
Can self-return the built-in exhaust jacking rod mechanism of upper core box Download PDFInfo
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- CN208131918U CN208131918U CN201820338949.6U CN201820338949U CN208131918U CN 208131918 U CN208131918 U CN 208131918U CN 201820338949 U CN201820338949 U CN 201820338949U CN 208131918 U CN208131918 U CN 208131918U
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- jacking rod
- exhaust jacking
- exhaust
- pressing plate
- core box
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Abstract
The utility model provide it is a kind of can self-return the built-in exhaust jacking rod mechanism of upper core box, be made of upper exhaust jacking rod guide sleeve, upper exhaust jacking rod component, vent plug, return spring, exhaust jacking rod pressing plate and pressing plate jacking block；The upper exhaust jacking rod guide sleeve is placed in the nozzle hole of upper core box back, the return spring is placed in above exhaust jacking rod guide sleeve, the vent plug is mounted on the lower end of exhaust jacking rod component, and the lower end of upper exhaust jacking rod component sequentially passes through return spring and upper exhaust jacking rod guide sleeve；Exhaust jacking rod pressing plate is fixed in upper core box, and the upper end of pressing plate jacking block is fixed in core box pressing plate, and when work, the lower end of pressing plate jacking block 12 passes through the through-hole at 8 center of exhaust jacking rod pressing plate, is gently pasted with the upper end center position of upper exhaust jacking rod component.The utility model had both been able to achieve the exhaust of sand core key position, in turn ensured the ejection balance of sand core key position, while backventing nor affects on the solidification of sand core key position.
Description
Technical field
The utility model belongs to core sand casting technology field, is related to core box exhaust-ejecting mechanism, and in particular to can be automatic
The built-in exhaust jacking rod mechanism of the upper core box of return.
Background technique
With being constantly progressive for fuel vehicle engine technology, cylinder cover water jacket, oil duct, the air passage structure of engine are increasingly multiple
Miscellaneous, therefore in its forming process, to the production of sand core, more stringent requirements are proposed.For the shell core or sand of larger area
The more complicated corner location of core, it will usually occur filling the technical issues of type is difficult or demoulding difficult (by pressure request height), it is existing
Treating method be setting nozzle pressurize core nail, but be arranged nozzle pressurize core nail has the following problems：
1, the surface quality of the position is inevitably influenced after setting nozzle；
2, increased nozzle is in the more difficult prediction in the position of sand core, if interflow, which occurs, with remaining nozzle will likely cause new sand
Core defect.
Summary of the invention
For above-mentioned problems of the prior art, the utility model provide can self-return upper core box it is built-in
Exhaust jacking rod mechanism, the utility model be both able to achieve the exhaust of sand core key position, in turn ensured the ejection of sand core key position
Balance, while backventing nor affects on the solidification of sand core key position.In conjunction with Figure of description, the technical solution of the utility model
It is as follows：
Can self-return the built-in exhaust jacking rod mechanism of upper core box, by upper exhaust jacking rod guide sleeve 2, upper exhaust jacking rod group
Part, vent plug 1, return spring 4, exhaust jacking rod pressing plate 8 and pressing plate jacking block 12 form；
The upper exhaust jacking rod guide sleeve 2 is placed in the nozzle hole of upper core box back, and the return spring 4 is placed in exhaust jacking rod
2 top of guide sleeve, the vent plug 1 are mounted on the lower end of exhaust jacking rod component, and the lower end of upper exhaust jacking rod component sequentially passes through back
Position spring 4 and upper exhaust jacking rod guide sleeve 2；
Exhaust jacking rod pressing plate 8 is fixed on upper core box substrate, and the upper end of pressing plate jacking block 12 is fixed in core box pressing plate,
When work, the lower end of pressing plate jacking block 12 passes through the through-hole at 8 center of exhaust jacking rod pressing plate, in the upper end of upper exhaust jacking rod component
It gently pastes heart position.
The upper exhaust jacking rod component is by upper exhaust jacking rod 3, exhaust jacking rod fixed panel 5,7 and of exhaust jacking rod fixed screw
Exhaust jacking rod pedestal 6 forms；
The top of the upper exhaust jacking rod 3 is equipped with outer, and exhaust jacking rod pedestal 6 and the fixed panel 5 of exhaust jacking rod distinguish position
Pass through row in the two sides up and down of upper 3 upper end outer of exhaust jacking rod, and between exhaust jacking rod pedestal 6 and the fixed panel 5 of exhaust jacking rod
Pneumatic jack bar fixed screw 7 is fixed, and then makes solid between the fixed panel 5 of exhaust jacking rod 3, exhaust jacking rod and exhaust jacking rod pedestal 6
It is linked together.
The pressing plate jacking block 12 passes through the pressing plate of pressing plate jacking block fixed plate 10 and fixed plate screw 11 and upper core box
It is connected, wherein the upper end of the pressing plate jacking block 12 is equipped with outer, and the upper surface of pressing plate jacking block fixed plate 10 acts against pressing
The lower surface of 12 upper end outer of plate jacking block, and pressing plate jacking block fixed plate 10 is connected in the pressing of upper core box by fixed plate screw 11
On plate.
The exhaust jacking rod pressing plate 8 is fixed on upper core box substrate by plate screw 9.
Compared with prior art, the beneficial effects of the utility model are：
1, exhaust jacking rod mechanism described in the utility model can close in thin, weak, distal end or great surface quality requirement etc. in sand core
Vent plug is directly arranged in key position, while guaranteeing the sand core quality of the position, does not influence the smooth degree and balance of sand core demoulding, has
Effect avoids the need to guarantee the nozzle interflow defect that more difficult predicted position produced by nozzle pressurization core is followed closely is arranged in weak location demoulding；
2, exhaust jacking rod mechanism described in the utility model can be reasonably in the case where core box initial stage designs incomplete situation
Cancel nozzle, controls the sand flows of different nozzles to getting around nozzle junction of two streams, while not influencing sand core demoulding smooth degree and balance；
3, the exhaust jacking rod temperature of exhaust jacking rod mechanism described in the utility model and core box temperature are almost the same, effectively avoid
Scab problem caused by vent plug is arranged on nozzle, ensure that sand core is complete, reduce the work that operator clears up nozzle vent plug
It measures, while built-in exhaust jacking rod back also allows solid gas to enter, and ensure that solidification beat；
4, exhaust jacking rod mechanism described in the utility model can self-return, prevented molding interference, can also accurately lead to
It crosses repairing type and obtains higher sand core surface profile and quality, it is caused when without worrying that common nozzle is trimmed to substantially flat position
The easily stifled problem of nozzle；
5, exhaust jacking rod mechanism described in the utility model adopts a split structure, and exhaust jacking rod, dimension are replaced when damage
Shield is convenient, and mandril firm banking and fixed panel are same specification part, save cost.
Detailed description of the invention
Fig. 1 be it is described in the utility model can self-return the built-in exhaust jacking rod mechanism of upper core box structural schematic diagram；
In figure：
1- vent plug；The upper exhaust jacking rod guide sleeve of 2-；The upper exhaust jacking rod of 3-；4- return spring；
5- exhaust jacking rod fixes panel；6- exhaust jacking rod pedestal；7- exhaust jacking rod fixed screw；8- exhaust jacking rod pressing plate；
9- plate screw；10- pressing plate jacking block fixed plate；11- fixed plate screw；12- pressing plate jacking block；
Specific embodiment
For the technical solution of the utility model is further described, in conjunction with Figure of description, the specific implementation of the utility model
Mode is as follows：
As shown in Figure 1, the utility model provide it is a kind of can self-return the built-in exhaust jacking rod mechanism of upper core box, institute
Exhaust jacking rod mechanism is stated by upper exhaust jacking rod guide sleeve 2, upper exhaust jacking rod 3, vent plug 1, return spring 4, the fixed panel of exhaust jacking rod
5, exhaust jacking rod pedestal 6, exhaust jacking rod fixed screw 7, exhaust jacking rod pressing plate 8, plate screw 9, pressing plate jacking block fixed plate 10,
Fixed plate screw 11 and pressing plate jacking block 12 form.
The upper exhaust jacking rod guide sleeve 2 is wedge structure wide at the top and narrow at the bottom, and is provided with passes through for mandril along the vertical direction
Through-hole, the narrow end inclined-plane of upper exhaust jacking rod guide sleeve 2 are tightly attached in the nozzle hole of upper core box back；The upper exhaust jacking rod 3 passes through upper
The through-hole of exhaust jacking rod guide sleeve 2, and then be installed into the nozzle hole of upper core box back；The vent plug 1 is embedded in exhaust jacking rod 3
Bottom end, the top of upper exhaust jacking rod 3 are equipped with outer, are provided with fixed panel push-rod hole on the fixed panel 5 of the exhaust jacking rod, arrange
The fixed panel 5 of pneumatic jack bar is nested with below the outer on upper 3 top of exhaust jacking rod；Pedestal top is provided on the exhaust jacking rod pedestal 6
Bar counterbore；It is also provided with screw hole on the fixed panel 5 of exhaust jacking rod position corresponding with 6 two sides of exhaust jacking rod pedestal, is arranged
The fixed panel 5 of pneumatic jack bar and exhaust jacking rod pedestal 6 pass through exhaust jacking rod for after the outer clamping position on upper 3 top of exhaust jacking rod
The fixed panel 5 of exhaust jacking rod is fixedly connected by fixed screw with exhaust jacking rod pedestal 6, thus realize the fixed panel 5 of exhaust jacking rod,
Upper exhaust jacking rod 3 and exhaust jacking rod pedestal 6, which are fixed with one, constitutes exhaust jacking rod component；4 row of being placed on of return spring
3 middle section of upper exhaust jacking rod of 2 top of pneumatic jack bar guide sleeve, 4 one end of return spring acts against on exhaust jacking rod guide sleeve 2, another
End acts against on the fixed panel 5 of exhaust jacking rod.
The exhaust jacking rod pressing plate 8 is located above exhaust jacking rod component, and 8 two sides of exhaust jacking rod pressing plate are provided with screw hole, arranges
Pneumatic jack bar pressing plate 8 is fixed on upper core box substrate by plate screw 9, and jacking block through-hole is provided in the middle part of exhaust jacking rod pressing plate 8；Institute
The upper end for stating pressing plate jacking block 12 is equipped with outer, and the middle part of the pressing plate jacking block fixed plate 10 is provided with jacking block mounting hole, presses
The two sides of plate jacking block fixed plate 10 are provided with screw hole, and the pressing plate jacking block fixed plate 10 is nested in 12 upper end of pressing plate jacking block
Below outer, act against the outer of 12 upper end of pressing plate jacking block on the upper surface of pressing plate jacking block fixed plate 10, pressing plate top
Block fixed plate 10 is fixed in core box pressing plate by fixed plate screw 10；The core box pressing plate is to remove upper core box in core box
Other one piece of working plate other than substrate, core box pressing plate can be relatively toward polyslips when working；When work, the pressing plate top
The lower end of block 12 passes through the through-hole at 8 center of exhaust jacking rod pressing plate, gently pastes with the upper end center position of upper exhaust jacking rod component.
It is described in the utility model can self-return the built-in exhaust jacking rod mechanism of upper core box installation and the course of work such as
Under：
S1, upper exhaust jacking rod guide sleeve is put into the nozzle hole of upper core box back；
S2, return spring 4 is placed above upper exhaust jacking rod guide sleeve 2；
S3, the fixed panel 5 of exhaust jacking rod, upper exhaust jacking rod 3 and exhaust jacking rod pedestal 6 are assembled, forms exhaust top
Bar assembly；
S4, vent plug 1 is bumped into the bottom of upper exhaust jacking rod 3；
S5, exhaust jacking rod component is sequentially passed through to return spring 4 and upper exhaust jacking rod guide sleeve 2, will be vented with return spring 4
Push rod component is held up；
S6, exhaust jacking rod pressing plate 8 is tightened by plate screw 9, exhaust jacking rod component is fixed in upper core box；
S7, pressing plate jacking block 12 is installed on the corresponding position of core box pressing plate, and passes through pressing plate jacking block fixed plate 10
Pressing plate jacking block 12 is tightened into fixation with fixed plate screw 11.
It is described can self-return the built-in exhaust jacking rod mechanism of upper core box during the work time, when penetrating sand, upper exhaust top
Bar 3 stays in mold cavity surface, and when demoulding, upper exhaust jacking rod 3 is ejected by pressing plate jacking block 12, after demoulding, in return bullet
Under the action of spring 4, upper exhaust jacking rod 3 is by self-return.
Claims (3)
1. can self-return the built-in exhaust jacking rod mechanism of upper core box, it is characterised in that：
By upper exhaust jacking rod guide sleeve (2), upper exhaust jacking rod component, vent plug (1), return spring (4), exhaust jacking rod pressing plate (8) and
Pressing plate jacking block (12) composition；
The upper exhaust jacking rod guide sleeve (2) is placed in the nozzle hole of upper core box back, and the return spring (4) is placed in exhaust jacking rod
Above guide sleeve (2), the vent plug (1) is mounted on the lower end of exhaust jacking rod component, and the lower end of upper exhaust jacking rod component is successively worn
Cross return spring (4) and upper exhaust jacking rod guide sleeve (2)；
Exhaust jacking rod pressing plate (8) is fixed on upper core box substrate, and the upper end of pressing plate jacking block (12) is fixed in core box pressing plate,
When work, the lower end of pressing plate jacking block (12) passes through the through-hole at exhaust jacking rod pressing plate (8) center, upper with upper exhaust jacking rod component
It gently pastes end center.
2. as described in claim 1 can self-return the built-in exhaust jacking rod mechanism of upper core box, it is characterised in that：
The upper exhaust jacking rod component is by upper exhaust jacking rod (3), exhaust jacking rod fixed panel (5), exhaust jacking rod fixed screw (7)
It is formed with exhaust jacking rod pedestal (6)；
The top of the upper exhaust jacking rod (3) is equipped with outer, and exhaust jacking rod pedestal (6) and exhaust jacking rod fixed panel (5) are respectively
Positioned at the two sides up and down of upper exhaust jacking rod (3) upper end outer, and exhaust jacking rod pedestal (6) and exhaust jacking rod fixed panel (5) it
Between it is fixed by exhaust jacking rod fixed screw (7), and then push up exhaust jacking rod (3), exhaust jacking rod fixed panel (5) and exhaust
Rod base is fixed with one between (6).
3. as described in claim 1 can self-return the built-in exhaust jacking rod mechanism of upper core box, it is characterised in that：
The exhaust jacking rod pressing plate (8) is fixed on upper core box substrate by plate screw (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820338949.6U CN208131918U (en) | 2018-03-13 | 2018-03-13 | Can self-return the built-in exhaust jacking rod mechanism of upper core box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820338949.6U CN208131918U (en) | 2018-03-13 | 2018-03-13 | Can self-return the built-in exhaust jacking rod mechanism of upper core box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208131918U true CN208131918U (en) | 2018-11-23 |
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ID=64288654
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820338949.6U Active CN208131918U (en) | 2018-03-13 | 2018-03-13 | Can self-return the built-in exhaust jacking rod mechanism of upper core box |
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Cited By (1)
| 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 |
-
2018
- 2018-03-13 CN CN201820338949.6U patent/CN208131918U/en active Active
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 |
| 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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