CN110814299A - Casting and pouring system for gray iron pressure plate of clutch - Google Patents

Casting and pouring system for gray iron pressure plate of clutch Download PDF

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Publication number
CN110814299A
CN110814299A CN201911215445.0A CN201911215445A CN110814299A CN 110814299 A CN110814299 A CN 110814299A CN 201911215445 A CN201911215445 A CN 201911215445A CN 110814299 A CN110814299 A CN 110814299A
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CN
China
Prior art keywords
pressure plate
casting
pouring
pouring gate
gate
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Pending
Application number
CN201911215445.0A
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Chinese (zh)
Inventor
申潞潞
王渊
张�杰
马毅光
陈涛
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Shanxi Huaxiang Group Ltd By Share Ltd
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Shanxi Huaxiang Group Ltd By Share Ltd
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Application filed by Shanxi Huaxiang Group Ltd By Share Ltd filed Critical Shanxi Huaxiang Group Ltd By Share Ltd
Priority to CN201911215445.0A priority Critical patent/CN110814299A/en
Publication of CN110814299A publication Critical patent/CN110814299A/en
Pending legal-status Critical Current

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22CFOUNDRY MOULDING
    • B22C9/00Moulds or cores; Moulding processes
    • B22C9/22Moulds for peculiarly-shaped castings
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22CFOUNDRY MOULDING
    • B22C9/00Moulds or cores; Moulding processes
    • B22C9/08Features with respect to supply of molten metal, e.g. ingates, circular gates, skim gates
    • B22C9/082Sprues, pouring cups
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22CFOUNDRY MOULDING
    • B22C9/00Moulds or cores; Moulding processes
    • B22C9/20Stack moulds, i.e. arrangement of multiple moulds or flasks

Abstract

The invention protects a casting gating system of a clutch gray iron pressure plate, which comprises at least one gating system unit, wherein the gating system unit comprises at least one pressure plate casting, the pressure plate casting is connected with a continuous blank pressing pouring gate, and the continuous blank pressing pouring gate sequentially comprises a vertical pouring gate, a slag collecting pouring gate and a middle pouring gate which are mutually communicated; the pressure plate casting is overlapped with the middle pouring gate to form a first water inlet, and the middle pouring gate is overlapped with the slag collecting pouring gate to form a second water inlet; compared with the prior art, the pouring system innovatively adopts a non-riser feeding mode, fully meets the feeding requirement of the castings, reduces the consumption of molten iron, and provides an inspiration for green production of modern industry.

Description

Casting and pouring system for gray iron pressure plate of clutch
Technical Field
The invention relates to the field of casting industry, in particular to a casting and pouring system for a clutch gray iron pressure plate.
Background
The casting process is a manufacturing process of pouring molten metal into a casting mold, and cooling and solidifying to obtain a part with required shape and performance. The casting technology is one of the main methods for obtaining a mechanical product blank, is an important basic process in the casting machinery industry, occupies an important position in national economy, and is widely applied to casting of a clutch pressure plate at present.
Most of the existing clutch pressure plate molds are distributed in a bilateral symmetry mode, a vertical pouring gate passes through the middle of a left casting and a right casting, a process design of a bottom injection and top injection method is adopted, and the highest position of the casting is provided (a dead head is arranged to improve feeding effect, but the defects of the existing casting process are found in long-term actual production that 1, the process design is complicated, the influence factors of heat-saving calculation are more, the size of the dead head is difficult to accurately control, and the phenomenon of uneven quality level of products in different batches often occurs, 2, the lower part of the dead head tends to shrink holes when the diameter or the position of the dead head is not properly arranged, 4, a plurality of water inlets are arranged in an existing pouring system, so that the molten iron filling is not stable, the probability of casting defects such as slag inclusion, sand holes and the like is increased, and a large amount of molten.
In order to solve the problems, and by combining the characteristic of strong self-feeding effect of the gray iron during solidification, the invention provides a feeding method which modifies the feeding method of a top riser in the original process into the feeding method without the riser, so that the subsequent cleaning process of a casting is simplified while the feeding effect is met, the manual strength is reduced, and the quality and the efficiency of the casting process are improved.
Disclosure of Invention
The invention provides a casting and pouring system for a clutch gray iron pressure plate.
The technical means adopted by the invention are as follows.
A casting gating system of a clutch gray iron pressure plate comprises at least one gating system unit, wherein the gating system unit comprises at least one pressure plate casting, the pressure plate casting is connected with a continuous blank pressing pouring gate, and the continuous blank pressing pouring gate sequentially comprises a vertical pouring gate, a slag collecting pouring gate and a middle pouring gate which are mutually communicated; wherein the pressure plate casting and the middle pouring channel are overlapped to form a first water inlet respectively, and the overlapping width is 2.5-3.5 mm; the middle pouring channel and the slag collecting pouring channel are overlapped to form a second water inlet, and the overlapping width is 3.5-5 mm; the overlapping length of the two positions is the same.
The thickness of the slag collecting pouring channel is H2, and half of the maximum width is L2; the thickness of the middle pouring channel is H1, and the maximum width is L1; the height of the main body of the pressure plate casting is H, the maximum width of the main body of the pressure plate casting is L, and the parameters meet the following conditions:
H1=(1.5-2)H;L1=(1.1-1.3)L;
H2=(1.2-1.5)H1;L2=(1.2-1.4)L1。
furthermore, the casting gating system for the clutch gray iron pressure plate further comprises two pressure plate castings which are symmetrically arranged left and right, a slag collecting runner is connected to the lower portion of the vertical runner, the slag collecting runner is respectively connected with an intermediate runner, and each intermediate runner is connected with one pressure plate casting.
Further, the vertical pouring channel adopts a standard trapezoidal pouring channel, and the cross section area of the vertical pouring channel is at least 300mm2(ii) a The height of the vertical pouring channel is at least 60mm higher than the top of the platen casting.
Furthermore, the transverse cross section of the slag collecting pouring gate is trapezoidal.
Furthermore, at least one sheet pouring gate communicated with each other is arranged between the cross pouring gates in the pouring system.
The advantageous effects produced by the present invention are as follows.
The invention innovatively provides a casting and pouring system of a clutch gray iron pressure plate, which modifies a top riser feeding mode in the original process into a riser-free feeding mode by virtue of the characteristic of strong self-feeding effect of gray iron during solidification, so that the yield of the pressure plate process is improved by eliminating the top riser, the shrinkage defect of the position of the riser is perfectly solved, and a large amount of molten iron is saved; secondly, the non-riser process can ensure that the pressure plate can be stably filled in the casting process, thereby effectively reducing the defects of poor machining of the friction surface, sand holes and the like; meanwhile, the pouring system without the riser head further simplifies the original pouring, so that the later processing process is time-saving and labor-saving. The novel process is verified by a large amount of production, not only can be stably produced, but also the production efficiency can be greatly improved, and the novel process is worthy of popularization.
Drawings
FIG. 1 is a schematic structural diagram of a casting gating system of a clutch gray iron pressure plate according to the invention.
FIG. 2 is a partially cut-away structural diagram of a casting gating system of a clutch gray iron pressure plate according to the invention.
FIG. 3 is a partially cut-away cross-sectional view of the casting gating system of the clutch gray iron pressure plate of FIG. 2.
Fig. 4 is changed into the overlapping length of the water inlets A and the overlapping length of the water inlets B and the height difference of the vertical pouring channel and the pressure plate.
FIG. 5 is a schematic view showing the positions of the first and second water inlets.
Detailed Description
The following detailed description of the casting and pouring system for a clutch gray iron platen according to the present invention will be provided with reference to the accompanying drawings.
As shown in fig. 1, the casting mold structure of the invention is a schematic diagram of a casting gating system structure of a clutch gray iron platen, wherein the top riser feeding mode in the original process is modified into a riser-free feeding mode, the casting gating system mainly comprises at least one gating system unit, the gating system unit comprises at least one platen casting 6, the platen casting 6 is connected with a continuous blank-holding pouring gate, the continuous blank-holding pouring gate is connected with cross runners 1 and 2 and a sheet pouring gate 5, the casting mold without a riser is integrally formed, the pouring system can be provided with a plurality of pouring system units according to the actual production requirement or cast other similar castings according to the riser-free mode, compared with the prior art, the invention adopts the riser-free feeding mode innovatively, fully meets the casting feeding requirement and simultaneously reduces the molten iron consumption, provides inspiration for green production of modern industry.
As described above, the feeder-free feeding manner of the present invention is completed by the continuous blank-holding pouring gate, and referring to fig. 2, fig. 3 and fig. 5, the continuous blank-holding pouring gate sequentially comprises the vertical pouring gate 3, the slag collecting pouring gate 4 and the intermediate pouring gate 7 which are communicated with each other. In a preferred embodiment, the pressure plate casting 6 and the intermediate pouring gate 7 are overlapped to form a first water inlet A, and the overlapping width is 2.5-3.5 mm; the middle pouring gate 7 and the slag collecting pouring gate 4 are overlapped to form a second water inlet B, the overlapping width is 3.5-5mm, the overlapping length of the first water inlet A and the second water inlet B is the same, and the specific length is adjusted according to the filling time of a product; the first water inlet A and the second water inlet B which are formed in an overlapped mode can be used for molten iron to pass through, and the first water inlet A and the second water inlet B are both circulation pouring channels with small slits, so that the phenomena of sand holes, uneven quality and the like caused by the fact that sundries in the molten iron flow into a casting cavity can be avoided again.
In order to meet the feeding requirement in a non-riser feeding mode, the continuous blank-holding pouring gate is arranged as follows: the thickness of the slag collecting pouring channel 4 is H2, and half of the maximum width is L2; the thickness of the middle pouring gate 7 is H1, and the maximum width is L1; the height of the main body of the pressure plate casting 6 is H, and the maximum width of the main body is L, wherein the thicknesses mentioned here are the heights of the transverse sections of the corresponding pouring channels, and the maximum widths are the maximum lengths of the transverse sections of the corresponding pouring channels; because the pressure plate casting is of an annular structure, the maximum length of the pressure plate casting is the maximum annular width of the pressure plate casting.
The above parameters satisfy the following conditions:
H1=(1.5-2)H;L1=(1.1-1.3)L;
H2=(1.2-1.5)H1;L2=(1.2-1.4)L1。
in a preferred embodiment, the gating system unit comprises two platen castings 6 which are arranged in bilateral symmetry, the lower part of the vertical pouring channel 3 is connected with the slag collecting pouring channel 4, two sides of the two slag collecting pouring channels 4 are respectively connected with an intermediate pouring channel 7, and each intermediate pouring channel 7 is connected with one platen casting 6.
Referring to fig. 4, in order to satisfy feeding and stabilize molten iron filling, the continuous blank-holding pouring gate of the present invention is preferably arranged as follows: the slag collecting pouring gate 4 is arranged below the two pressure plate castings 6, and the pressure plate castings 6 and the middle pouring gateThe passage 7 is lapped to form a first water inlet A, and the lapping width is 2.5-3.5 mm; overlap length of TAThe middle pouring channel 7 and the slag collecting pouring channel (4) are overlapped to form a second water inlet, and the overlapping width is 3.5-5 mm; overlap length of TBOverlap length T at two positions of water inlet A and water inlet BAAnd TBThe specific length is adjusted according to the filling time of the product; the vertical pouring channel adopts a standard trapezoidal pouring channel, the cross section area of the vertical pouring channel is adjusted according to the product mold filling time, and the cross section area is at least 300mm2(ii) a The height of the vertical pouring channel is at least 60mm higher than the top of the platen casting.
Furthermore, the vertical runner 3 is keeping away from the one end of the slag collecting runner 4 is connected with the horizontal runner 1 through the horizontal runner 2, the horizontal runner 1 is provided with at least one sheet runner 5 which is communicated with each other between the horizontal runner 2, the sheet runner 5 and the horizontal runner 2 are beneficial to filtering impurities in molten iron, and meanwhile, the turbulent flow which occurs when the molten iron directly flows into the vertical runner can be prevented.
The invention provides a casting and pouring system for a clutch gray iron pressure plate, which embodies the following advantages in practical application: firstly, a top riser feeding mode in the original process is modified into a feeder feeding mode without risers, the shrinkage defect of the position of the riser is perfectly overcome, meanwhile, a bottom edge type water inlet is further formed by means of the overlapping design between an inner pouring gate and the outer edge of a casting, the overlapping part is easy to remove in the follow-up process, the step of manual polishing is omitted, the follow-up cleaning efficiency is greatly improved, and the manual strength is reduced; secondly, the non-riser mode greatly improves the process yield and saves a large amount of molten iron, thereby saving the production cost; the novel process is verified by a large amount of production, not only can be stably produced, but also the production efficiency can be greatly improved, and the novel process is worthy of popularization.

Claims (5)

1. A casting gating system of a clutch gray iron pressure plate comprises at least one gating system unit, and is characterized in that the gating system unit comprises at least one pressure plate casting (6), the pressure plate casting (6) is connected with a continuous blank-holding pouring gate, and the continuous blank-holding pouring gate sequentially comprises a vertical pouring gate (3), a slag collecting pouring gate (4) and a middle pouring gate (7) which are communicated with each other;
the pressure plate casting (6) and the middle pouring gate (7) are overlapped to form a first water inlet (A), and the overlapping width is 2.5-3.5 mm;
the middle pouring channel (7) and the slag collecting pouring channel (4) are overlapped to form a second water inlet (B); the lap width is 3.5-5 mm;
the overlapping length of the first water inlet (A) and the second water inlet (B) is the same;
the thickness H2 of the slag collecting pouring gate (4) is L2, and half of the maximum width of the slag collecting pouring gate is L2; the thickness of the middle pouring gate (7) is H1, and the width is L1; the height of the main body of the pressure plate casting (6) is H, the maximum width of the main body of the pressure plate casting is L, and the parameters meet the following conditions:
H1=(1.5-2)H;L1=(1.1-1.3)L;
H2=(1.2-1.5)H1;L2=(1.2-1.4)L1。
2. the casting pouring system for the clutch gray iron pressure plate according to claim 1 is characterized by comprising two pressure plate castings (6) which are arranged in a bilateral symmetry mode, wherein a slag collecting pouring channel (4) is connected below the vertical pouring channel (3), the slag collecting pouring channel (4) is respectively connected with an intermediate pouring channel (7), and each intermediate pouring channel (7) is connected with one pressure plate casting (6).
3. A casting gating system for a clutch gray iron pressure plate according to claim 2, characterized in that the vertical pouring channel (3) is a standard trapezoidal pouring channel with a cross-sectional area of at least 300mm2And the height of the vertical pouring channel (3) is at least 60mm higher than the top of the pressure plate casting (6).
4. A casting gating system for a clutch gray iron platen according to any one of claims 1 to 3, characterized in that the transverse cross-sectional shape of the slag collection runner (4) and the intermediate runner (7) is trapezoidal, and the draft angle is 3 ° to 5 °.
5. The casting gating system for the clutch gray iron pressure plate according to claim 4, characterized in that the gating system is connected with a cross runner (1) through the cross runner (2), at least one sheet gate (5) which is communicated with each other is arranged between the cross runner (1) and the cross runner (2), and the thickness of the sheet gate is 2-3 mm.
CN201911215445.0A 2019-12-02 2019-12-02 Casting and pouring system for gray iron pressure plate of clutch Pending CN110814299A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201911215445.0A CN110814299A (en) 2019-12-02 2019-12-02 Casting and pouring system for gray iron pressure plate of clutch

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201911215445.0A CN110814299A (en) 2019-12-02 2019-12-02 Casting and pouring system for gray iron pressure plate of clutch

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Publication Number Publication Date
CN110814299A true CN110814299A (en) 2020-02-21

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111889622A (en) * 2020-06-22 2020-11-06 共享铸钢有限公司 Casting method of compressor shell
CN113600756A (en) * 2021-07-28 2021-11-05 肇庆精通机械有限公司 Gating system for bearing casting production
CN113714463A (en) * 2021-08-30 2021-11-30 安徽海立精密铸造有限公司 Polishing-free pouring system for one-mold four-piece sand casting of bearing sleeve

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111889622A (en) * 2020-06-22 2020-11-06 共享铸钢有限公司 Casting method of compressor shell
CN111889622B (en) * 2020-06-22 2022-02-22 共享铸钢有限公司 Casting method of compressor shell
CN113600756A (en) * 2021-07-28 2021-11-05 肇庆精通机械有限公司 Gating system for bearing casting production
CN113714463A (en) * 2021-08-30 2021-11-30 安徽海立精密铸造有限公司 Polishing-free pouring system for one-mold four-piece sand casting of bearing sleeve

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