CN202845711U - Auxiliary mold for modelling of casting sand molds - Google Patents

Auxiliary mold for modelling of casting sand molds Download PDF

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Publication number
CN202845711U
CN202845711U CN 201220561076 CN201220561076U CN202845711U CN 202845711 U CN202845711 U CN 202845711U CN 201220561076 CN201220561076 CN 201220561076 CN 201220561076 U CN201220561076 U CN 201220561076U CN 202845711 U CN202845711 U CN 202845711U
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CN
China
Prior art keywords
casting
mold
molding
modelling
baffle plate
Prior art date
Application number
CN 201220561076
Other languages
Chinese (zh)
Inventor
吴来发
崔明胜
Original Assignee
安徽合力股份有限公司
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Application filed by 安徽合力股份有限公司 filed Critical 安徽合力股份有限公司
Priority to CN 201220561076 priority Critical patent/CN202845711U/en
Application granted granted Critical
Publication of CN202845711U publication Critical patent/CN202845711U/en

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Abstract

The utility model relates to an auxiliary mold for the modelling of casting sand molds, which comprises a mold baseplate, a sand box, a model block, a positioning pin, a guide pin and drawing guide posts. The auxiliary mold has an improvement that the two ends of a diagonal line of the mold baseplate are respectively provided with a drawing guide post. According to the utility model, the deflection and dislocation of casting molds in the process of drawing are eliminated or reduced, and the damages on mold cavities and cods of castings caused by the drawing process are reduced; according to different complexity levels of casting mold cavities, 30-70% of patching workloads can be saved, so that the modelling efficiency is improved, and the quality of castings is improved; due to the enhancement of the drawing stability, the adaptability of a casting process is improved, and the height-diameter ratio of a casting-mold cod is increased from 0.8:1 to 1.2:1; and the pattern draft of molds can be reduced by 30%.

Description

Casting sand type moulding auxiliary mould

Technical field

The utility model belongs to casting technology field, is specifically related to casting sand type moulding auxiliary mould.

Background technology

The moulding molding mode of sand casting is mainly divided artificial suspender molding and the molding of moulding machine parasite power, molding power divides pneumatic, hydraulic pressure and electronic.No matter all there is shake deflection situation in which kind of molding mode in the casting mold knockout course, and is especially more serious with artificial suspender molding and pneumatic mechanism molding, and this also is the reason that casting pattern all must the dispensing pattern draft.Simultaneously, because it is uneven steady to play mold process, the easy fracture of codding of casting mold is so for different casting techniques, the degree of depth of codding has certain limitation.

Summary of the invention

In order to eliminate the shake deflection in the casting mold knockout course, improve casting technique adaptability and casting quality, by the improvement to existing auxiliary mould, the utility model provides a kind of casting sand type moulding auxiliary mould.

The casting sand type moulding comprises baffle plate and sandbox with auxiliary mould, described baffle plate middle part is provided with model block, corresponding both sides are respectively equipped with alignment pin and guide finger mutually, described sandbox is sleeved on the baffle plate, and improvement is: the place, cornerwise two ends of described baffle plate is provided with respectively the molding guide pillar.

Described molding guide pillar is cylindric, highly is 0.8~1.2 times of model block height; According to the sandbox size, the diameter of molding guide pillar is φ 50~φ 150 mm.

The utility model is compared the advantage with following aspect with prior art products:

1. molding guide pillar 4 can be realized the molding of gapless guiding.In traditional pattern drawing mechanism; alignment pin 2 and positioning sleeve 7, guide finger 5 and 8 of fairleads are because the distortion of expanding with heat and contract with cold of template and sandbox material; all must be provided with the fit clearance of 0.1~0.3mm between pin and cover, guide finger 5 and fairlead 8 are provided with the free-extension stroke of 5~15mm especially in centre of location line direction.So, alignment pin (cover), guide finger (cover) are though can guarantee the precision of mould dimension, in the time of but can not stoping molding casting mold 9 deflections or with the small horizontal direction changing of the relative positions of 3 moments of model block, but molding guide pillar 4 is on whole pattern draw travels and 9 on casting mold gapless radially, imposed restrictions on casting mold 9 deflections and and model block 3 between the changing of the relative positions;

2. molding guide pillar 4 is installed, eliminate or deflection and the changing of the relative positions when reducing casting mold 9 molding after, reduced a mold process to foundry goods die cavity 10 and 11 the damage of codding, complexity according to mould cavity is different, can save and repair type workload 30~70%, improve moulding efficient, also improve casting quality;

3. because the raising of molding stationarity has improved casting technique adaptability, the ratio of height to diameter that casting mold is codded can be brought up to 1.2:1 by 0.8:1.The pattern draft of model can reduce 30%;

4. the utility model is reasonable in design, and is simple in structure, can directly be increased to upper application of existing moulding equipment.

Description of drawings

Fig. 1 is the utility model structural representation.

Fig. 2 is use state cutaway view.

Sequence number among the upper figure: baffle plate 1, alignment pin 2, model block 3, molding guide pillar 4, guide finger 5, sandbox 6, positioning sleeve 7, fairlead 8, casting mold 9, foundry goods die cavity 10, cod 11.

The specific embodiment

Below in conjunction with accompanying drawing, by embodiment the utility model is done to describe further.

Embodiment:

Referring to Fig. 1, the casting sand type moulding comprises baffle plate 1 and sandbox 6 with auxiliary mould, baffle plate 1 middle part is equipped with model block 3, corresponding both sides are separately installed with alignment pin 2 and guide finger 5 mutually, sandbox 6 is sleeved on the baffle plate 1, and positioning sleeve 7 cooperates with alignment pin 2 on the sandbox, fairlead 8 cooperates with guide finger 5.The place, cornerwise two ends of baffle plate 1 is installed with respectively molding guide pillar 4.

Its inventive point is design and the installation of molding guide pillar 4.The pattern draft of molding guide pillar 4 is less than model block 3, is defined as 1/3~1/2 of model block 3 pattern drafts, is 0.25~0.5%, can guarantee if perpendicularity is installed, and can not discharge pattern draft.According to the sandbox size, the diameter value of molding guide pillar is φ 50-φ 150 mm, and minimum is not less than φ 50mm.It highly is 0.8~1.2 times of model block 3 height.Every baffle plate is joined 2.In addition, the installation of molding guide pillar 4 on baffle plate 1 must be vertical, and mould cavity is left in the position as far as possible, and distance is as far as possible far away between 2 molding guide pillars 4.

During molding, casting mold 9 is in leaving model block 3 processes of having discharged pattern draft, the sidewall of model block 3 and foundry goods die cavity 10 madial walls and the gap of codding between 11 increase gradually, and the gap of molding guide pillar 4 and its cavity lateral is 0, or little more than the gap of the sidewall of model block 3 and foundry goods die cavity madial wall.Like this, the deflection of model block 3 or controlled by molding guide pillar semi-finals row with the horizontal direction changing of the relative positions of casting mold 9 during molding.

Claims (2)

1. casting sand type moulding auxiliary mould, comprise baffle plate and sandbox, described baffle plate middle part is provided with model block, corresponding both sides are respectively equipped with alignment pin and guide finger mutually, described sandbox is sleeved on the baffle plate, it is characterized in that: the place, cornerwise two ends of described baffle plate is provided with respectively the molding guide pillar.
2. casting sand type moulding auxiliary mould according to claim 1, it is characterized in that: described molding guide pillar is cylindric, highly is 0.8~1.2 times of model block height; According to the sandbox size, the diameter of molding guide pillar is φ 50~φ 150 mm.
CN 201220561076 2012-10-30 2012-10-30 Auxiliary mold for modelling of casting sand molds CN202845711U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220561076 CN202845711U (en) 2012-10-30 2012-10-30 Auxiliary mold for modelling of casting sand molds

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201220561076 CN202845711U (en) 2012-10-30 2012-10-30 Auxiliary mold for modelling of casting sand molds

Publications (1)

Publication Number Publication Date
CN202845711U true CN202845711U (en) 2013-04-03

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Family Applications (1)

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CN 201220561076 CN202845711U (en) 2012-10-30 2012-10-30 Auxiliary mold for modelling of casting sand molds

Country Status (1)

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CN (1) CN202845711U (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105750511A (en) * 2016-03-28 2016-07-13 宁夏朗盛精密制造技术有限公司 Two-flask positioning method for sand casting
CN107685135A (en) * 2017-08-22 2018-02-13 安徽合力股份有限公司合肥铸锻厂 Pressure casting brakes hub casting
CN107931545A (en) * 2018-01-08 2018-04-20 江阴新长机械配件有限公司 A kind of wind energy sand box used for casting that can be strong with grittiness
CN108500219A (en) * 2018-05-21 2018-09-07 沈阳永赢达铸业有限公司 A kind of molding sand sandbox and reduce molding sand casting method
CN108580813A (en) * 2018-01-02 2018-09-28 繁昌县金牛机械铸造有限责任公司 A kind of sand casting sand box

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105750511A (en) * 2016-03-28 2016-07-13 宁夏朗盛精密制造技术有限公司 Two-flask positioning method for sand casting
CN107685135A (en) * 2017-08-22 2018-02-13 安徽合力股份有限公司合肥铸锻厂 Pressure casting brakes hub casting
CN108580813A (en) * 2018-01-02 2018-09-28 繁昌县金牛机械铸造有限责任公司 A kind of sand casting sand box
CN107931545A (en) * 2018-01-08 2018-04-20 江阴新长机械配件有限公司 A kind of wind energy sand box used for casting that can be strong with grittiness
CN108500219A (en) * 2018-05-21 2018-09-07 沈阳永赢达铸业有限公司 A kind of molding sand sandbox and reduce molding sand casting method

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GR01 Patent grant
EXPY Termination of patent right or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20130403

Termination date: 20151030