CN206588307U - A kind of precoated sand typefounding core producing device - Google Patents
A kind of precoated sand typefounding core producing device Download PDFInfo
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- CN206588307U CN206588307U CN201720193599.4U CN201720193599U CN206588307U CN 206588307 U CN206588307 U CN 206588307U CN 201720193599 U CN201720193599 U CN 201720193599U CN 206588307 U CN206588307 U CN 206588307U
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- typefounding
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- precoated sand
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Abstract
A kind of precoated sand typefounding core producing device, it is made up of hot box 1, bracket 2 and cast type 3, the hot box is the body structure that bottom surface 4 is plane, the bottom surface 4 is provided with cast type mosaic groove 5, the bracket 2 is made up of hot box support 6 and heating arrangements 7, the cast type 3 includes typefounding matrix 8 and typefounding body 9, the thickness of the typefounding matrix 8 is identical with the depth of the cast type mosaic groove 5, the precoated sand typefounding core producing device also includes typefounding die positioning mechanism, and heating arrangements 7 are preferably using natural gas as the mode of heating of the energy；Implement precoated sand heat hardening technique using the producing device of the precoated sand typefounding core, it may replace ester hardened sodium silicate sand self-hardening technique, in casting typefounding core makes production, making man-hour can be reduced, improve production efficiency, improve typefounding core ratio of briquetting and core Forming Quality and the Forming Quality of workpiece typefounding, cost of manufacture is saved in reduction production consumption.
Description
Technical field
The utility model is related to a kind of casting sand core producing device, the making dress of more particularly to a kind of precoated sand typefounding core
Put.
Background technology
With the fast development of track traffic industry, to train important component, the quality management requirement of such as bolster, side frame
More and more higher, the readability to typefoundings such as the casting serial number on casting, production days number, manufacturer's number, country origin code names has
Clearly require, and be included among the standard of Product Acceptance Review.Bolster, the typefounding of side frame make big in production at present
Use ester hardened sodium silicate sand from hard technique, detachable typefounding block is embedded in typefounding frock, is blended using puddle mixer more
Ester hardened sodium silicate sand makes, and by burying the process such as air-set, molding in sand, reality of pounding, air, makes font size core.But,
It is relatively low that the typefounding number made using the technique has firm time length, an operating efficiency, and not enough, firm time is or not surface smoothness
It is easy to control, the shortcomings of cost of manufacture is larger.The core typefounding shaping that particularly Ester cured self-setting silicate process makes is not good, often
The defects such as appearance is collapsed, knob, pit, missing, this is that cleaning task afterwards bring very big difficulty, causes type size essence
Degree can not meet the design requirement of drawing, reduce the aesthetic measure of font size, influence the acceptance quality of product.
Utility model content
The purpose of this utility model is to provide a kind of producing device of precoated sand typefounding core, using the precoated sand
The producing device of word core, can realize and be made of precoated sand heat hardening technology generations for ester hardened sodium silicate sand self-hardening technique
Typefounding core, improves typefounding quality, reduces cost of manufacture.
The precoated sand typefounding core producing device, is made up of hot box 1, bracket 2 and cast type 3；The hot box 1 is
Bottom surface is the body structure of plane 4, and inside has sufficient Rong Sheng spaces 20, ensure that splendid attire is met and makes typefounding core work
The precoated sand of skill amount, the bottom surface 4 of the hot box 1 is provided with cast type mosaic groove 5；The bracket 2 is by the He of hot box support 6
Heating arrangements are constituted；The cast type 3 includes typefounding matrix 8 and typefounding body 9, the thickness of the typefounding matrix 8 and the casting
The depth of type matrix mosaic groove 5 is identical, and corresponding with cast type mosaic groove 5 in size and shape, make one or
The combination of several cast types 3 can be fully filled with the space of the cast type mosaic groove 5, and make the typefounding matrix 8
Upper surface and the hot box bottom surface 4 be maintained at same level.In the precoated sand typefounding core producing device, also wrap
Containing typefounding die positioning mechanism, the typefounding die positioning mechanism is by the positioning hole 10 that is opened in the cast type mosaic groove 5
Constituted with the alignment pin 11 for the bottom of typefounding matrix 8 that matches with it, is arranged at, the alignment pin 11 inserts the positioning hole
In 10, stationary positioned is realized；For increase thermal conductivity factor, the efficiency of heating surface is improved, determining in the cast type mosaic groove 5 is opened in
Position hole 10 can optimization design be through hole.
Heating arrangements 7 in the bracket 2 can select combustion gas, electric power or other feasible mode of heatings, and this practicality is new
Type is preferably using natural gas as the mode of heating of the energy, and Fig. 5 show the structural representation of gas heating mechanism 7, combustion gas main pipeline
12 delivery of fuel gas enter heating arrangements 7, into the bracket 2 after main pipeline 12 be divided into several branch pipe(tube)s 13, branch pipe(tube) 13
Specific number determines that the distance between branch pipe(tube) 13 is general at 10~15 centimetres, every according to the size of the hot box 1
Individual branch pipe(tube) 13 is provided with several burning-points 14, and the distance between the two neighboring burning-point of same branch pipe(tube) is 5~7 centimetres.
The hot box 1 and cast type 3 are made up of ironcasting, to improve the thermal conductivity factor of hot box 1, improve heating
Efficiency.
The utility model provides a kind of producing device of precoated sand typefounding core, in casting typefounding core makes production,
Realize with precoated sand heat hardening technique substitution ester hardened sodium silicate sand self-hardening technique, with following beneficial effects：One is
Core firm time is significantly shorten, former technique air-set is overcome and takes long the problem of be difficult to meet production requirement, subtract
Lack making man-hour, improve production efficiency；Two be to play mold technique with heat to replace cold mold technique, obtains typefounding surface smoothness
To being obviously improved, the Forming Quality of typefounding core ratio of briquetting and workpiece typefounding is improved；Three be stable technical process, and operation is easy to
Control, it is to avoid former technique core hardening is insufficient to be caused core scab or harden the phenomenons such as excessively made core breakage, is carried
High core Forming Quality；Four are a simplified technical process, and frock, device can be recycled, and can reduce production consumption, section
About cost of manufacture.
Brief description of the drawings
Fig. 1, precoated sand typefounding core producing device.
Fig. 2, hot box front view.
Fig. 3, hot box top view.
Fig. 4, gas heating mechanism front view.
Fig. 5, gas heating mechanism top view.
Embodiment
With reference to optimisation technique scheme, the utility model is further described referring to the drawings.
As shown in figure 3, the precoated sand typefounding core producing device, is made up of hot box 1, bracket 2 and cast type 3；Institute
It is the body structure that bottom surface is plane 4 to state hot box 1, and bottom surface 4 is provided with cast type mosaic groove 5, and the cast type inlays recessed
Positioning hole 10 in groove 5 is through hole；The bracket 2 is made up of hot box support 6 and heating arrangements 7, and the heating arrangements 7 are used
Natural gas heating arrangement, natural gas main pipeline 12 enter the bracket 2 after be divided into two branch pipe(tube)s 13, on branch pipe(tube) 13 every
5 centimetres of settings, one burning-point 14；The cast type 3 includes typefounding matrix 8 and typefounding body 9, the thickness of the typefounding matrix 8 with
The depth of the cast type mosaic groove 5 is identical, and the bottom of typefounding matrix 8 is provided with alignment pin 11.In addition, the hot box 1
It is made up with cast type 3 of ironcasting.
The process for making typefounding core using the precoated sand typefounding core producing device is as follows.
1）The use state of hot box 1, liquefied gas passage 12 and safety in utilization are checked, precoated sand, the precoated sand is configured
It is made up of roughing sand, phenolic resin, methenamine and calcium stearate.
2）Cast type 3 is placed in the bottom of hot box 1, the alignment pin 11 of the bottom of cast type 3 is inserted into cast type and inlays recessed
In positioning hole 10 in groove 5, by the stationary positioned of cast type 3, make typefounding matrix 8 tightly packed in cast type mosaic groove 5, if
A dry assembled arrangement of cast type 3 completely fills out cast type mosaic groove 5.
3）Natural gas line 12 is opened, pipeline burning-point 14 is lighted, the hot box 1 is positioned on the support 6 and heated.
4）When heating-up temperature reaches 170 DEG C, typefounding precoated sand is poured into and filled up hot box cavity volume 20 in hot box 1,
After the face of strike-ofing of hot box 1 is struck off afterwards, continuous heating.
5）Keep firing rate stable, hot box 1 is continued to be heated to 220~300 DEG C, 20~60 seconds is incubated, waits to cover
Film sand is reacted after hardening completely, lifts by crane core molding, while cast type 3 is taken out, is prepared lower whorl after cooling and is made.
Claims (5)
1. a kind of precoated sand typefounding core producing device, it is characterised in that：By hot box（1）, bracket（2）And cast type（3）Group
Into；The hot box is bottom surface（4）For plane（4）Body structure, the bottom surface（4）It is provided with cast type mosaic groove（5）；
The bracket（2）By hot box support（6）And heating arrangements（7）Composition；The cast type（3）Include typefounding matrix（8）With
Typefounding body（9）, the typefounding matrix（8）Thickness and the cast type mosaic groove（5）Depth it is identical.
2. a kind of precoated sand typefounding core producing device as claimed in claim 1, it is characterised in that：Also include cast type to determine
Position mechanism, the typefounding die positioning mechanism is by being opened in the cast type mosaic groove（5）In positioning hole（10）With with its phase
Coordinate, be arranged at the typefounding matrix（8）The alignment pin of bottom（11）Composition.
3. a kind of precoated sand typefounding core producing device as claimed in claim 2, it is characterised in that：It is opened in the cast type
Mosaic groove（5）In positioning hole（10）For through hole.
4. a kind of precoated sand typefounding core producing device as claimed in claim 1, it is characterised in that：The heating arrangements（7）
For gas heating structure, combustion gas main pipeline（12）Into the bracket（2）After be divided into several branch pipe(tube)s（13）, in each branch pipe
Road is provided with several burning-points（14）.
5. a kind of precoated sand typefounding core producing device as described in any one of Claims 1-4, it is characterised in that：The heat
Core box（1）And cast type（3）It is made up of ironcasting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720193599.4U CN206588307U (en) | 2017-03-04 | 2017-03-04 | A kind of precoated sand typefounding core producing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720193599.4U CN206588307U (en) | 2017-03-04 | 2017-03-04 | A kind of precoated sand typefounding core producing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206588307U true CN206588307U (en) | 2017-10-27 |
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ID=60125729
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720193599.4U Active CN206588307U (en) | 2017-03-04 | 2017-03-04 | A kind of precoated sand typefounding core producing device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106734942A (en) * | 2017-03-04 | 2017-05-31 | 牡丹江中车金缘铸业有限公司 | A kind of precoated sand typefounding core producing device and the method that typefounding core is made of it |
| CN107838391A (en) * | 2017-11-10 | 2018-03-27 | 西峡县众德汽车部件有限公司 | The preparation method of chill and chill |
| CN112808933A (en) * | 2020-12-31 | 2021-05-18 | 洛阳鹏起实业有限公司 | Method for forming titanium alloy casting with mark |
-
2017
- 2017-03-04 CN CN201720193599.4U patent/CN206588307U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106734942A (en) * | 2017-03-04 | 2017-05-31 | 牡丹江中车金缘铸业有限公司 | A kind of precoated sand typefounding core producing device and the method that typefounding core is made of it |
| CN106734942B (en) * | 2017-03-04 | 2018-12-04 | 牡丹江中车金缘铸业有限公司 | A method of making precoated sand typefounding sand core |
| CN107838391A (en) * | 2017-11-10 | 2018-03-27 | 西峡县众德汽车部件有限公司 | The preparation method of chill and chill |
| CN112808933A (en) * | 2020-12-31 | 2021-05-18 | 洛阳鹏起实业有限公司 | Method for forming titanium alloy casting with mark |
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