CN204524178U - Cast iron pipe fittings lost foam pattern coating dip coating apparatus - Google Patents
Cast iron pipe fittings lost foam pattern coating dip coating apparatus Download PDFInfo
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- CN204524178U CN204524178U CN201420863627.5U CN201420863627U CN204524178U CN 204524178 U CN204524178 U CN 204524178U CN 201420863627 U CN201420863627 U CN 201420863627U CN 204524178 U CN204524178 U CN 204524178U
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Abstract
The utility model discloses a kind of cast iron pipe fittings lost foam pattern coating dip coating apparatus of once operate more than one piece model, it is characterized in that it comprises and be provided with air intake valve, the sealing bucket of drain tap, rabbling mechanism is provided with in sealing bucket, sealing bottom of the barrel is communicated with dip-coating bottom of the barrel by conveying pipeline, described dip-coating bucket comprises staving, model gland, staving side is provided with the runing rest of band movable model gland away from staving, the cylinder being with the upper and lower vertical lift of movable model gland is provided with between runing rest and model gland, the utility model efficiency improves about 1.5 times, decrease the transport process of model, the spoilage of module also more former mode has had further decline.Little by the coating weight change of stirring continuously, permeability is good, and the secondary sealing bucket that flows back to of every dip-coating one stirs, and in the backflow of dip-coating bucket with sealing bucket, ensure that the uniformity of coating, the viscosity of coating is compared former scheme and will be stablized, and cast(ing) surface is good, the pressure testing Quality advance of product.There is good economic benefit.
Description
Technical field
The utility model relates to a kind of cast iron pipe fittings process equipment, specifically a kind of dip coating apparatus, is particularly a kind of cast iron pipe fittings lost foam pattern coating dip coating apparatus.
Background technology
Lost foam casting (also known as cavityless casting) is with foamed plastics (EPS, STMMA or EPMMA) macromolecular material make become and the design of part that casting will be produced, the duplicate full mold mould of size, (strengthening is played through dip-coating fireproof coating, bright and clean, permeation functions) and after drying, be embedded in drystone sand through three-dimensional vibrating moulding, casting molding flask pours into molten metal liquid under negative pressure state, make macromolecular material model by thermal evaporation extraction, and then the disposal molding New Casting Technique formed after being replaced cooled and solidified by liquid metals produces the novel casting method of foundry goods.The dip coating manner now adopted be multipass dip-coating, the coating of preparation is fully stirred by agitator, finally add its viscosity of water management at 10s ~ 15s, after stirring completes, model is put into agitator submergence, evenly being coated with by coating hangs on model, then manually take out, until coating not drip and long-pending be coated with time, by the 60 order ~ 100 uniform throws of object quartz sand on model, again the model of good for throw sand is placed in the environment of 30 DEG C of ventilation and dries 30 minutes, put it into again in the ammonia chloride water solution of 25% and solidify 3 minutes ~ 5 minutes, dry rear with whom, model is cleaned after, model is dried 30 minutes, above step heavily needs in triplicate, just necessary requirement can be reached.This kind of mode makes labor strength large, can only single-piece dip-coating, inefficiency, to stop during dip-coating stirring, because damage and the distortion of module can be caused when stirring, stop stirring and then can cause the uneven of coating, the viscosity B coefficent of coating is large, thus affects performance and the coating layer thickness of coating.Vicious circle like this directly affects the inherent quality of cast iron pipe fittings, facts have proved, due to the fluctuation of coating property, the annual casting wasted product that produces is no less than 200 tons, and direct economic loss is more than 2,000,000 yuan.
Summary of the invention
The purpose of this utility model is to provide a kind of cast iron pipe fittings lost foam pattern coating dip coating apparatus of once operate more than one piece model.
The utility model adopts following technical scheme to realize its goal of the invention, a kind of cast iron pipe fittings lost foam pattern coating dip coating apparatus, it comprises the sealing bucket being provided with air intake valve, drain tap, rabbling mechanism is provided with in sealing bucket, sealing bottom of the barrel is communicated with dip-coating bottom of the barrel by conveying pipeline, described dip-coating bucket comprises staving, model gland, staving side is provided with band movable model gland away from the runing rest of staving, is provided with the cylinder being with the upper and lower vertical lift of movable model gland between runing rest and model gland.
Rabbling mechanism described in the utility model comprises the shaft being arranged on and being driven by power in sealing bucket, and shaft one end is provided with the impeller stirring coating.
The utility model changes coating for ease of cleaning, and conveying pipeline is flanged tee pipe fitting.
The utility model is convenient and swift for placing model, is provided with the bearing support placing model in staving.
Adapter sleeve is provided with between the utility model model gland and cylinder.
Owing to adopting technique scheme, the utility model achieves goal of the invention preferably, and its structure is simple, and efficiency improves about 1.5 times, and simultaneously because decrease the transport process of model, the spoilage of module also more former mode has had further decline.Little by the coating weight change of stirring continuously, coating uniform, permeability is good, the secondary sealing bucket that flows back to of every dip-coating one stirs, and in the backflow of dip-coating bucket with sealing bucket, ensure that the uniformity of coating, the viscosity of coating is compared former scheme and will be stablized, thus coating quality is stablized, cast(ing) surface is good, and the pressure testing quality of product steadily improves.There is good economic benefit.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Detailed description of the invention
Below in conjunction with drawings and Examples, the utility model is described in further detail.
As shown in Figure 1, a kind of cast iron pipe fittings lost foam pattern coating dip coating apparatus, it comprises the sealing bucket 1 being provided with air intake valve, drain tap, rabbling mechanism is provided with in sealing bucket 1, be communicated with dip-coating bottom of the barrel by conveying pipeline 4 bottom sealing bucket 1, described dip-coating bucket comprises staving 5, model gland 8, and staving 5 side is provided with the runing rest 6 of band movable model gland 8 away from staving 5, is provided with the cylinder 7 being with movable model gland about 8 vertical lift between runing rest 6 and model gland 8.
Rabbling mechanism described in the utility model comprises the shaft 2 being arranged on and being driven by power in sealing bucket 1, and shaft 2 one end is provided with the impeller 3 stirring coating, and described power is cycloidal planetary gear speed reducer 11.
The utility model changes coating for ease of cleaning, and conveying pipeline 4 is flanged tee pipe fitting.
The utility model is convenient and swift for placing model, is provided with the bearing support 10 placing model in staving 5.
Adapter sleeve 9 is provided with between the utility model model gland 8 and cylinder 7.
During utility model works, start rabbling mechanism, open drain tap (not drawing mark in figure) ensure sealing bucket 1 be communicated with air, the coating stirred is added dip-coating bucket, the proportioning of the coating of the present embodiment and preparing process press the constant of former method, the only viscosity of adjustment coating, viscosity controls at 25s ~ 30s, t=20 DEG C, and coating flows under the influence of gravity in sealing bucket 1.Drain tap is closed during dip-coating, runing rest 6 is rotated to an angle, make model gland 8 leave the top of dip-coating bucket, more than one piece model is put on the bearing support 10 of dip-coating bucket, runing rest 6 is rotated back into initial position, make that model gland 8 is corresponding with dip-coating bucket to be arranged, open the by-pass valve control of cylinder 7, make model gland 8 push down model, open compressed-air actuated air intake valve, coating enters in dip-coating bucket at compressed air flows by action, completes dip-coating work.The all surfaces externally and internallies of model all should evenly apply, foam surface has not been allowed to expose, closes compression air inlet valve after dip-coating completes, open drain tap, coating flows back to sealing bucket 1, due to the continuous operation of stirring system, and gas can cause coating to seethe, and makes the uniformity that ensure that coating in the backflow of dip-coating bucket and sealing bucket 1.The viscosity of coating is compared former scheme and will be stablized, and model carries out nature airing after complete coating and is not less than 5 minutes, and after coating not drip, just the uniform throw of 200 ~ 240 object quartz sand, on model, finally reenters hothouse baking.
Good and bad in order to embody with former scheme
,select the overall tee pipe fitting of DN100, carried out 2 and taken turns test, two schemes respectively produces 320, pours into a mould 13 tons of molten iron altogether.
First round test data (two kinds method each 160)
| Testing program | Cartonning number of packages | The dip-coating used time | Shaping number of packages | Surface quality of continuous castings | The pressure testing quality of foundry goods | Comprehensive qualified rate |
| Former scheme | 160 | 6 hours | 155 | 2 defective | 115 is qualified | 72% |
| After improvement | 160 | 4 hours | 158 | Entirely qualified | 135 is qualified | 84% |
Second takes turns test data (two kinds method each 160)
| Testing program | Cartonning number of packages | The dip-coating used time | Shaping number of packages | Surface quality of continuous castings | The pressure testing quality of foundry goods | Comprehensive qualified rate |
| Former scheme | 160 | 6 hours | 156 | 2 defective | 110 is qualified | 69% |
| After improvement | 160 | 4 hours | 158 | 1 is defective | 136 is qualified | 85% |
Through test result analysis, in the rear foundry goods of improvement, quality is apparently higher than former scheme, the surface quality of foundry goods is basic suitable with former scheme, after improving, the internal quality of casting higher than the main cause of former process program is: the more former scheme of permeability of coating has had and significantly improves, foundry goods because model gasification time produce internal soundness defect condition be greatly improved caused by.And the scheme after improving is because decrease dip-coating number of times, efficiency improves about 1.5 times, and simultaneously because the group case process before decreasing each cartonning of transhipment of model, the spoilage of module also more former scheme has had further decline.Coating quality is stablized, and cast(ing) surface is good, and the pressure testing quality of product steadily improves.There is good economic benefit.
Claims (7)
1. a cast iron pipe fittings lost foam pattern coating dip coating apparatus, it is characterized in that: it comprises the sealing bucket being provided with air intake valve, drain tap, rabbling mechanism is provided with in sealing bucket, sealing bottom of the barrel is communicated with dip-coating bottom of the barrel by conveying pipeline, described dip-coating bucket comprises staving, model gland, staving side is provided with band movable model gland away from the runing rest of staving, is provided with the cylinder being with the upper and lower vertical lift of movable model gland between runing rest and model gland.
2. cast iron pipe fittings lost foam pattern coating dip coating apparatus according to claim 1, is characterized in that: described rabbling mechanism comprises the shaft being arranged on and being driven by power in sealing bucket, and shaft one end is provided with the impeller stirring coating.
3. cast iron pipe fittings lost foam pattern coating dip coating apparatus according to claim 1, is characterized in that: conveying pipeline is flanged tee pipe fitting.
4. cast iron pipe fittings lost foam pattern coating dip coating apparatus according to claim 2, is characterized in that: conveying pipeline is flanged tee pipe fitting.
5. the cast iron pipe fittings lost foam pattern coating dip coating apparatus according to claim 1 or 2 or 3 or 4, is characterized in that: be provided with the bearing support placing model in staving.
6. the cast iron pipe fittings lost foam pattern coating dip coating apparatus according to claim 1 or 2 or 3 or 4, is characterized in that: be provided with adapter sleeve between model gland and cylinder.
7. cast iron pipe fittings lost foam pattern coating dip coating apparatus according to claim 5, is characterized in that: be provided with adapter sleeve between model gland and cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420863627.5U CN204524178U (en) | 2014-12-31 | 2014-12-31 | Cast iron pipe fittings lost foam pattern coating dip coating apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420863627.5U CN204524178U (en) | 2014-12-31 | 2014-12-31 | Cast iron pipe fittings lost foam pattern coating dip coating apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204524178U true CN204524178U (en) | 2015-08-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420863627.5U Expired - Fee Related CN204524178U (en) | 2014-12-31 | 2014-12-31 | Cast iron pipe fittings lost foam pattern coating dip coating apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204524178U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109175276A (en) * | 2018-09-30 | 2019-01-11 | 含山县全兴内燃机配件有限公司 | A kind of lost foam paint device for cylinder head foundry production line |
| CN114799088A (en) * | 2022-05-11 | 2022-07-29 | 李石泉 | Lost foam casting device for large workpiece |
-
2014
- 2014-12-31 CN CN201420863627.5U patent/CN204524178U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109175276A (en) * | 2018-09-30 | 2019-01-11 | 含山县全兴内燃机配件有限公司 | A kind of lost foam paint device for cylinder head foundry production line |
| CN109175276B (en) * | 2018-09-30 | 2020-04-07 | 含山县全兴内燃机配件有限公司 | A disappearance mould dip-coating device for cylinder head casting production line |
| CN114799088A (en) * | 2022-05-11 | 2022-07-29 | 李石泉 | Lost foam casting device for large workpiece |
| CN114799088B (en) * | 2022-05-11 | 2023-11-21 | 临沂华龙铸业有限公司 | Lost foam casting device for large workpiece |
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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: 20150805 Termination date: 20151231 |
|
| EXPY | Termination of patent right or utility model |