CN205165743U - Three swages of unpacking lopps foundry goods cover sand casting device - Google Patents

Three swages of unpacking lopps foundry goods cover sand casting device Download PDF

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Publication number
CN205165743U
CN205165743U CN201521010003.XU CN201521010003U CN205165743U CN 205165743 U CN205165743 U CN 205165743U CN 201521010003 U CN201521010003 U CN 201521010003U CN 205165743 U CN205165743 U CN 205165743U
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CN
China
Prior art keywords
mould
middle mould
foundry goods
lopps
cheek
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Expired - Fee Related
Application number
CN201521010003.XU
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Chinese (zh)
Inventor
薛祥军
王崇祯
赵生彦
张继东
国富忠
王可云
郭文海
张承斌
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
CHANGYI ZHONGZHU CASTING INDUSTRY Co Ltd
JINAN FOUNDRY PATTERN CO Ltd
Original Assignee
CHANGYI ZHONGZHU CASTING INDUSTRY Co Ltd
JINAN FOUNDRY PATTERN CO Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Application filed by CHANGYI ZHONGZHU CASTING INDUSTRY Co Ltd, JINAN FOUNDRY PATTERN CO Ltd filed Critical CHANGYI ZHONGZHU CASTING INDUSTRY Co Ltd
Priority to CN201521010003.XU priority Critical patent/CN205165743U/en
Application granted granted Critical
Publication of CN205165743U publication Critical patent/CN205165743U/en
Expired - Fee Related legal-status Critical Current
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Abstract

The utility model discloses a three swages of unpacking lopps foundry goods cover sand casting device belongs to the swage and covers the sand casting field of making. The casting device includes the cope, goes up mould, bottom boxd and lower mould, upward is equipped with the gating system on the mould, still includes cheek and well mould, and the cheek is located between cope and the bottom boxd, be provided with cylindrical well mould loose piece on the well mould, the back of well mould loose piece is equipped with well mould and inserts, cooperates respectively between cheek and cope and the bottom boxd to be provided with positioner. Casting process includes: heat mould and sand box, the molding, the mould assembling, the pouring finally obtains the foundry goods product. The utility model discloses an utilize the swage to cover sand casting process production lopps, three foundry goods of unpacking, product quality is reliably stable, and the product rate is high, and size precision is high.

Description

The device for sand coated iron mould casting device of three part box lopps foundry goods
Technical field
The utility model relates to device for sand coated iron mould casting technology field, specifically a kind of device for sand coated iron mould casting device of three part box lopps foundry goods.
Background technology
Iron die sand casting process technology receives much concern with the advantage of its uniqueness, and this technology is also by popularization progressively.But its high cost investment to casting device in early stage, and in use owing to being subject to expanding with heat and contract with cold and cast ambient influnence and cause casting the problems such as distortion, cracking repeatedly for a long time, a lot of people is also allowed to set foot in easily.
Iron die sand casting process technology is especially favourable at reduced size such as dish class, bar class, axle class foundry goods etc., is substantially also all two to unpack.And for the foundry goods of lopps, three part box, iron die sand casting process research and casting device or blank out.
Lopps foundry goods middle part concavely, can not depanning smoothly, cast if two unpack, solve the problem and can only lean on the method for middle lower core, if but lower core, add the frock such as coremaking, lower core and operation on the one hand, the more important thing is that core overall dimensions are large in addition, wall thickness is comparatively large, is inconvenient to operate, is lost the advantage of device for sand coated iron mould technique.
Utility model content
For the problems referred to above, the purpose of this utility model is the device for sand coated iron mould casting device providing a kind of three part box lopps foundry goods, and this casting device achieves the foundry goods utilizing iron die sand casting process production lopps, three part box, and reliable product quality is stablized, yield rate is high, and dimensional accuracy is high.
The technical scheme in the invention for solving the technical problem is: the device for sand coated iron mould casting device of three part box lopps foundry goods, comprise the counterdie of cope, the patrix forming cope die cavity, drag box and formation drag box die cavity, patrix is provided with running gate system, it is characterized in that, also comprise the middle mould of cheek and formation cheek die cavity, cheek is between cope and drag box; Middle mould is provided with the middle mould loose piece of column, the back side of middle mould loose piece is provided with middle mould insert, together with middle mould loose piece abuts against with middle mould insert; Described cheek and be equipped with positioner respectively between cope and drag box.
Between middle mould loose piece and middle mould insert, be provided with alignment pin and orienting cover, make middle mould loose piece accurately firm with coordinating of middle mould insert, be also provided with suspension ring insert so that molding at the upper surface of middle mould loose piece.
Cheek is provided with penetrates tamper cover, replacing for convenience detach, once lining is impaired, old lining of dismantling is changed, and sandbox can continue to use.
Further technical scheme is: described patrix is positioned on patrix baffle plate, and described middle mould, middle mould loose piece and middle mould insert are all arranged on mould baffle plate, and described counterdie is positioned on counterdie baffle plate; The inside of patrix baffle plate, middle mould baffle plate and counterdie baffle plate is provided with horizontally disposed electrically heated rod.Patrix, middle mould and counterdie all adopt electric heating mould, are convenient to, to operation during mold heated, also improve production efficiency.
Further technical scheme is: described middle mould baffle plate is also provided with the electrically heated rod vertically arranged, the electrically heated rod vertically arranged to be arranged on face that mould baffle plate and mould insert match and to insert the inside of mould insert.Arrange the electrically heated rod vertically arranged, improve the efficiency of heating surface, can make the temperature that middle mould insert keeps higher, middle mould insert can be used as thermal source for middle mould loose piece provides heat.
Further technical scheme is: described cope, cheek and drag box are provided with reinforcement; Reinforcement on described cope and drag box is uniformly distributed in divergent shape on its end face, and the reinforced bag sand well on described cheek is on its wall outer surface.Arrange reinforcement, ensure that the intensity of casting device, reinforcement is evenly arranged, and decreases stress and concentrates.
Further technical scheme is: described running gate system is positive-pressure gating system, and described running gate system comprises ingate, cross gate and sprue, and described sprue is communicated with cross gate, and cross gate is communicated with ingate, and cross gate is connected with the inner ring of patrix.Adopt positive-pressure gating system, ensure well to fill type and easy to clean, there is good pushing off the slag ability.
Further technical scheme is: described positioner comprises alignment pin and positioning sleeve, and positioning sleeve is nested with the outside at alignment pin, adopts guide to coordinate the variation of the transverse direction after limiting sandbox mould assembling.Because casting device for a long time high temperature, cool the adverse circumstances that repeatedly change under work, so their problem such as intensity, distortion and quality of fit will be taken into full account when designing and producing.To change the impact caused for eliminating casting device size under the environment of variations in temperature, sandbox and sandbox, sandbox and external mold adopt locating and orienting mode to fix; External mold loose piece then adopts the oriented approach of four different directions to realize location.
The both sides of cope, cheek and drag box are equipped with hangs handle.
The beneficial effects of the utility model are: the casting device that the utility model provides, achieve the three part box device for sand coated iron mould casting of lopps foundry goods, for the larger space of application extension of device for sand coated iron mould, for providing valuable experience to the product development of relatively large, Complex Parts, three part box production technology from now on; Compared with traditional sand casting mode, to cast product appearance quality good, product yield is high, and dimensional accuracy is high.
Accompanying drawing explanation
Fig. 1 is the plan structure schematic diagram after the mould assembling of the utility model embodiment;
Fig. 2 is the A-A sectional view of Fig. 1;
Fig. 3 is the left view of Fig. 2;
Fig. 4 is the plan structure schematic diagram of mould in the utility model embodiment;
Fig. 5 is the B-B sectional view of Fig. 4;
Fig. 6 is that the casting technique of the utility model embodiment expresses schematic diagram;
Fig. 7 is the C-C sectional view of Fig. 6;
Fig. 8 is the structural representation of middle mould loose piece heater in the utility model embodiment.
In figure: 1 hangs handle, 2 copes, 3 reinforcements, 4 cups; 5 cheeks, 6 drag boxs, 7 sprue arenaceous shells, 8 steam vents; 9 sand buggies, 10 air discharge ducts, 11 foundry goods arenaceous shells, 12 foundry goods die cavities; 13 alignment pins, 14 positioning sleeves, mould loose piece in 15,16 suspension ring inserts; mould baffle plate in 17,18 electrically heated rods, 19 foundry goods, 20 cores; 21 cross gates, 22 ingates, 23 sprues, mould loose piece heater in 24.
Detailed description of the invention
Below in conjunction with Figure of description and specific embodiment, the utility model will be further described:
As shown in Figure 1, Figure 2 and Figure 3, the device for sand coated iron mould casting device of three part box lopps foundry goods, comprise the counterdie of cope 2, the patrix forming cope die cavity, drag box 6 and formation drag box die cavity, patrix is provided with running gate system, also comprise the middle mould of cheek 5 and formation cheek die cavity, cheek 5 is between cope 2 and drag box 6; Middle mould is provided with the middle mould loose piece 15 of column, the back side of middle mould loose piece 15 is provided with middle mould insert, together with middle mould loose piece 15 abuts against with middle mould insert; Described cheek 5 and be equipped with positioner respectively between cope 2 and drag box 6.
As Fig. 4, Fig. 5, between middle mould loose piece 15 and middle mould insert, be provided with alignment pin and orienting cover, make middle mould loose piece 15 accurately firm with coordinating of middle mould insert, be also provided with suspension ring insert 16 so that molding at the upper surface of middle mould loose piece 15.
Cheek 5 is provided with penetrates tamper cover, replacing for convenience detach, once lining is impaired, old lining of dismantling is changed, and sandbox can continue to use.
For ease of heating mould, patrix, middle mould and counterdie all adopt electric heating mould, concrete structure is: described patrix is positioned on patrix baffle plate, and described middle mould, middle mould loose piece 15 and middle mould insert are all arranged on mould baffle plate 17, and described counterdie is positioned on counterdie baffle plate; The inside of patrix baffle plate, middle mould baffle plate 17 and counterdie baffle plate is provided with horizontally disposed electrically heated rod 18.
Middle mould baffle plate 17 is also provided with the electrically heated rod vertically arranged, the electrically heated rod vertically arranged to be arranged on face that mould baffle plate 17 and mould insert match and to insert the inside of mould insert.
Upper electric heating mould and lower electric heating mould manufacture by the usual patten's design of existing device for sand coated iron mould mould, and more special is middle electric heating mould.Middle mould has the middle mould loose piece 15 that very large, in order to make, middle die cast device is convenient to be produced, and middle mould also devises a large middle mould insert.In order to realize heating this electric heating mould fast, be set up at heating tube cloth and this change has all been made in heater design.On middle mould baffle plate 17, not only devise the electrically heated rod of level, also devise a circle electrically heated rod at the vertical direction of middle mould baffle plate 17 and middle mould insert near the position of layer of sand.
In addition, middle mould loose piece 15 is often moved, and during middle mould loose piece 15 can absorb when assembling with middle mould insert, the heat of mould insert ensures the temperature of self.But when molding, middle mould loose piece 15 needs to be hung out, now, mould loose piece 15 is in as air-cooled condition.When central mould loose piece 15 coordinates with middle mould insert again, the temperature of middle mould loose piece 15 self have dropped a lot, needs heating further to work on.
Certainly, middle mould loose piece 15 can promote self temperature again by the heat of mould insert in absorbing, but this needs the time.Therefore a middle mould loose piece heater 24 is devised; as shown in Figure 8; middle mould loose piece heater 24 be provided with the groove matched with middle mould loose piece 15; electrically heated rod has been evenly arranged in the sidewall of groove; in central mould loose piece 15 disengagement after this thermal source of mould insert, we can drop it off insulation in middle mould loose piece heater 24, heat up.When re-using 15 moulding of middle mould loose piece like this, without the need to etc. to be heatedly get final product work, save the time, improve efficiency.
Described cope 2, cheek 5 and drag box 6 are provided with reinforcement 3; Reinforcement 3 on described cope 2 and drag box 6 is uniformly distributed in divergent shape on its end face, and the reinforcement 3 on described cheek 5 is distributed on its wall outer surface.Arrange reinforcement 3, ensure that the intensity of casting device, reinforcement 3 is evenly arranged, and decreases stress and concentrates.
As shown in Figure 6, Figure 7, described running gate system is positive-pressure gating system, and described running gate system comprises ingate 22, cross gate 21 and sprue 23, and described sprue 23 is communicated with cross gate 21, cross gate 21 is communicated with ingate 22, and cross gate 21 is connected with the inner ring of patrix.Adopt positive-pressure gating system, ensure well to fill type and easy to clean, there is good pushing off the slag ability.
As Fig. 2, the below of cup 4 connects sprue arenaceous shell 7, is also provided with sand buggy 9 inside cheek 5, the core 20 on sand buggy 9 corresponding diagram 6 and Fig. 7 medium casting 19.Steam vent 8, air discharge duct 10, foundry goods arenaceous shell 11 and foundry goods die cavity 12 is provided with in sandbox.
Described positioner comprises alignment pin 13 and positioning sleeve 14, and positioning sleeve 14 is nested with the outside at alignment pin 13, adopts guide to coordinate the variation of the transverse direction after limiting sandbox mould assembling.Because casting device for a long time high temperature, cool the adverse circumstances that repeatedly change under work, so their problem such as intensity, distortion and quality of fit will be taken into full account when designing and producing.To change the impact caused for eliminating casting device size under the environment of variations in temperature, sandbox and sandbox, sandbox and external mold adopt locating and orienting mode to fix; External mold loose piece then adopts the oriented approach of four different directions to realize location.
The both sides of cope, cheek and drag box are equipped with hangs 1, and hanging must be solid and reliable 1, avoids in use occurring fracture.
Utilize the device for sand coated iron mould casting device of the three part box lopps foundry goods of the present embodiment to carry out the technique of casting, comprise the following steps:
Step 1: preparation before casting, checks casting device and status of equipment.Concrete operations are as follows:
Step (1-1): check casting device, comprise all of sandbox, mould, loose piece etc., checks whether raw material prepare complete, checkout facility situation, ensures that infrastructure device can be produced safely, smoothly;
Step (1-2): casting device is placed on equipment accurately, firm with equipment connection, and test is pushed up case, is penetrated the actions such as sand, matched moulds, upset.
Step 2: heat mould and sandbox, temperature rises to 180 DEG C ~ 230 DEG C, can select to rise to 200 DEG C, 210 DEG C, 220 DEG C etc.
Step 3: produce sand mold, complete the assembling of lower sand mold, middle sand mold and upper sand mold.Concrete operations are as follows:
Mould comprises patrix, middle mould and counterdie three, and upper die and lower die are produced by general device for sand coated iron mould formative technology, and middle mould is more special, has a middle mould loose piece 15 in the middle, and in this step, in maintenance, the temperature of mould loose piece is at 180 DEG C ~ 230 DEG C.Keep higher temperature for ease of middle mould loose piece 15, be provided with the groove-like heater matched with it, and devise suspension ring in the upper surface center of middle mould loose piece 15.In front of moulding, mould loose piece 15 is put on middle mould, and before molding, in first, mould loose piece 15 hangs out, and puts it in middle mould loose piece heater 24, the temperature of mould loose piece 15 in maintenance, so repeatedly.
Note productive temp and order when producing sand mold, Mr. gives birth to sand mold, the lower sand mold of upset after molding, and lower sand mold is put into lower sand mold on track upward, checks and repairs lower sand mold; Then be middle sand mold, after middle sand mold molding, do not need upset, check sand mold in repairing, need to descend core at this moment during lower core, core fixation, then middle sand mold and lower sand mold are assembled; Be finally upper sand mold, upper sand mold does not also need mould turnover, just upper sand mold and middle sand mold is assembled after checking sand mold.In whole moulding, lower core, assembling process, each step is all wanted careful and is checked, occurs that unusual condition processes in time, and has stepped on productive temp, makes each produce node energy work well, avoids production disorderly and unsystematic, cause hidden danger of quality.
Step 4: put into cup at sprue mouth after mould assembling, watches in die cavity whether having exception by sprue mouth, if not abnormal, just cover cast gate with cover plate, waits to be cast.
Step 5: smelting metal, to liquid, is poured into a mould.Will pour into a mould as early as possible after mould assembling, because now sand mold has uniform temperature, and temperature is higher, more favourable to molten iron flow.If sand mold temperature is too high or change is too large, all can affects the cooler environment of foundry goods, thus affect its mechanical property.So as much as possible sand mold temperature stabilization in the scope that amplitude of variation is smaller.
Although running gate system has certain pushing off the slag ability, in order to ensure the quality of foundry goods, also must not be negligent of controlling to the quality of iron liquid.Smelting and pouring is one of committed step of foundry goods success.Use for reference high temperature and come out of the stove the theory of cast cold to instruct practical operation.Tapping temperature is generally at about 1550 DEG C, and pouring temperature is set in 1330 DEG C-1360 DEG C.1340 DEG C, 1350 DEG C, 1355 DEG C equivalences can be selected.During cast, the distance between attentional manipulation casting ladle and cup, the distance general control between casting ladle and cup, at 300 ~ 500mm, ensures certain pressure head, and ensures that cup is in full without flowing over state.
Step 6: after casting complete, through supercooling, unpacks and cleaning, obtains cast product.
In the utility model, in casting technique, should heated mould be adopted, carry out moulding by after mold heated, but the mode of heating of mould is not limited to the Electric heating described in embodiment, other mode can be adopted to heat mould.
The foregoing is only preferred embodiment of the present utility model; it is not whole embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle; any amendment of doing, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.Except technical characteristic described in description, all the other technical characteristics are those skilled in the art's known technology, and be outstanding innovative characteristics of the present utility model, above-mentioned technical characteristic does not repeat them here.

Claims (6)

1. the device for sand coated iron mould casting device of three part box lopps foundry goods, comprise the counterdie of cope, the patrix forming cope die cavity, drag box and formation drag box die cavity, patrix is provided with running gate system, it is characterized in that, also comprise the middle mould of cheek and formation cheek die cavity, cheek is between cope and drag box; Middle mould is provided with the middle mould loose piece of column, the back side of middle mould loose piece is provided with middle mould insert, together with middle mould loose piece abuts against with middle mould insert; Described cheek and be equipped with positioner respectively between cope and drag box.
2. the device for sand coated iron mould casting device of three part box lopps foundry goods according to claim 1, it is characterized in that, described patrix is positioned on patrix baffle plate, and described middle mould, middle mould loose piece and middle mould insert are all arranged on mould baffle plate, and described counterdie is positioned on counterdie baffle plate; The inside of patrix baffle plate, middle mould baffle plate and counterdie baffle plate is provided with horizontally disposed electrically heated rod.
3. the device for sand coated iron mould casting device of three part box lopps foundry goods according to claim 2, it is characterized in that, described middle mould baffle plate is also provided with the electrically heated rod vertically arranged, the electrically heated rod vertically arranged to be arranged on face that mould baffle plate and mould insert match and to insert the inside of mould insert.
4. the device for sand coated iron mould casting device of three part box lopps foundry goods according to claim 1, is characterized in that, described cope, cheek and drag box are provided with reinforcement; Reinforcement on described cope and drag box is uniformly distributed in divergent shape on its end face, and the reinforced bag sand well on described cheek is on its wall outer surface.
5. the device for sand coated iron mould casting device of three part box lopps foundry goods according to claim 1, it is characterized in that, described running gate system is positive-pressure gating system, described running gate system comprises ingate, cross gate and sprue, described sprue is communicated with cross gate, cross gate is communicated with ingate, and cross gate is connected with the inner ring of patrix.
6. the device for sand coated iron mould casting device of three part box lopps foundry goods according to claim 1, it is characterized in that, described positioner comprises alignment pin and positioning sleeve, and positioning sleeve is nested with the outside at alignment pin.
CN201521010003.XU 2015-12-07 2015-12-07 Three swages of unpacking lopps foundry goods cover sand casting device Expired - Fee Related CN205165743U (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105290322A (en) * 2015-12-07 2016-02-03 济南方德利模具有限公司 Sand coated iron mould casting device and casting technology of three-part-box ring type casting
CN107737888A (en) * 2017-10-17 2018-02-27 繁昌县传正铸造有限公司 A kind of picture shape sandbox for being used to cast pipeline leakage plugging device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105290322A (en) * 2015-12-07 2016-02-03 济南方德利模具有限公司 Sand coated iron mould casting device and casting technology of three-part-box ring type casting
CN105290322B (en) * 2015-12-07 2018-07-10 济南方德利模具有限公司 The device for sand coated iron mould casting device and casting technique of three part box ring class casting
CN107737888A (en) * 2017-10-17 2018-02-27 繁昌县传正铸造有限公司 A kind of picture shape sandbox for being used to cast pipeline leakage plugging device

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CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20160420

CF01 Termination of patent right due to non-payment of annual fee