CN105598414B - Surface anti-skidding type aluminium alloy step pedal preparation technology - Google Patents
Surface anti-skidding type aluminium alloy step pedal preparation technology Download PDFInfo
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- CN105598414B CN105598414B CN201610025825.8A CN201610025825A CN105598414B CN 105598414 B CN105598414 B CN 105598414B CN 201610025825 A CN201610025825 A CN 201610025825A CN 105598414 B CN105598414 B CN 105598414B
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- die
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
- B22D17/20—Accessories: Details
- B22D17/22—Dies; Die plates; Die supports; Cooling equipment for dies; Accessories for loosening and ejecting castings from dies
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
- B22D17/20—Accessories: Details
- B22D17/22—Dies; Die plates; Die supports; Cooling equipment for dies; Accessories for loosening and ejecting castings from dies
- B22D17/2272—Sprue channels
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The invention discloses surface anti-skidding type aluminium alloy step pedal preparation technology, the invention discloses surface anti-skidding type aluminium alloy step pedal preparation technology,（1）Die improvement；（2）Mold cleaning；（3）The setting of running gate system；（4）Alloy molten solution；（5）Mould preheats；（6）Cast, injection；（7）Die sinking, extract chipware；（8）Surface treatment；Present invention process step is simple, feasibility is high, it is higher by obtaining security to the technique, pressure-resistant and anti-skidding step pedal, the service life of step pedal is improved, and the technique further improves the uniformity of casting of molten metal by the improvement to sprue gate, prevent the accumulation of molten metal, hinder molten metal smoothly to enter die cavity and carry out die casting, and therefore the efficiency of die casting is also improved, and will not be because of gas being present and caused irregular bubble in press casting procedure in its surface.
Description
Technical field
The present invention relates to escalator treadboards processing technique field, more particularly to a kind of surface anti-skidding type aluminium alloy step to step on
Plate preparation technology.
Background technology
Escalator is widely used in each market, and the large-scale apartment place such as supermarket and office building, use range is wider,
Escalator instead of traditional stair pattern substantially, takes primarily to people are convenient, effortlessly, is directed to more
Higher floor designs.
Escalator is increasingly ripe till now, and its security is very high, and fault rate is relatively low, also by
The favor of users, but escalator because rising automatically, always there are some small events in it after running the long period
Barrier, and the glitch of escalator can not be ignored, the ignorance of this glitch may will lead to the great misfortune that can not be saved,
Existing modular construction is when previous step pedal and the latter step pedal combine in uphill process using biography
The comb structure of system, the comb structure can have larger friction, and activity between the two is not fine, is largely existed
The obstruction for hindering step pedal smoothly to rise, and serious failure can be caused if hindering step pedal to rise, influence certainly
The normal operation of dynamic staircase, thus in order to better improve the safety and stability during escalator operation thus need to change
Enter the production technology of the step pedal of escalator, solve above-mentioned safe and stable problem to be present with this.
The content of the invention
For above-mentioned problem, the present invention is intended to provide a kind of surface anti-skidding type aluminium alloy step pedal prepares work
Skill, the processing step is simple, and feasibility is high, by obtaining higher, the pressure-resistant and anti-skidding step pedal of security to the technique, carries
The service life of high step pedal, and the technique further improves the uniform of casting of molten metal by the improvement to sprue gate
Degree, the accumulation of molten metal is prevented, hinder molten metal smoothly to enter die cavity and carry out die casting, and therefore the efficiency of die casting is also carried
Height, the chipware quality of die casting are high.
To achieve these goals, the technical solution adopted in the present invention is as follows：
A kind of surface anti-skidding type aluminium alloy step pedal preparation technology, comprises the following steps：
（1）Die improvement：The die cavity of step pedal die casting in die casting machine is reprocessed before die casting, specifically
It is exactly the position of every pedal broach groove and to process some circular grooves to die cavity roof direction in die cavity；
（2）Mold cleaning：Mould is opened, it is by compressed air high pressure draught that the impurity progress of all passages in mould is thorough
Bottom is cleared up；
（3）The setting of running gate system：Triangle is set to shunt boss outside die casting before die casting, triangle shunting is convex
The front end connection of platform sets horizontal running channel, and horizontal running channel front end is set up in parallel some sprues, and straight with most middle one
Running channel is symmetry axis, and the bore of each sprue on its both sides increases successively according to direction from the close-by examples to those far off；
（4）Alloy molten solution：Aluminium alloy high-temperature firing is incubated into the molten state that temperature is 630-680 DEG C before die casting；
（5）Mould preheats：Die casting machine is opened, the mould of die casting machine is preheating to 150-180 DEG C, is preheating to after formulating temperature
10-15 minutes are incubated, make the temperature of die casting each several part in die casting machine consistent；
（6）Except air：It before die casting, will be vacuumized by vavuum pump in die cavity, remove the air of residual in die cavity（Prevent
The product surface of die casting causes the generation of bubble due to the presence of air）；
（7）Cast, injection：Mold temperature after preheating is again raised to operating temperature as 180-210 DEG C, then from pressure
The molten metal of molten state is poured at the top of the triangle shunting boss of casting machine directly down, and molten metal shunts boss along triangle
Two branch into horizontal running channel, and by between horizontal running channel and each sprue connect head piece take advantage of a situation shunted from triangle it is convex
Open die casting machine even into the cast that molten metal is carried out in the die cavity of pedal die casting and carry out injection, injection in the both sides of platform
It is 20-30MPa, the speed 0.1-0.4m/s of injection punch head than pressure, is finally molded in pedal-type intracavitary；
（8）Die sinking, extract chipware：Releasing agent is injected into die cavity before die sinking, or so 5-6 minutes after releasing agent injection
Time is molded, and chipware is taken out after die sinking, obtain by the circular groove and on each comb teeth bar integrated die-casting be molded
Some anti-skid bulges；
（9）Surface treatment；The surface of chipware is polished, natural cooling in air is placed in after burr removing.
Further improvement of the present invention is：Each sprue and the interface of horizontal running channel junction are machined with and are shaped as
Waist trapezium structure connects head piece, and the size that head piece is connect corresponding on each sprue also increases successively.
Further improvement of the present invention is：It before die casting, will be vacuumized, removed residual in die cavity in die cavity by vavuum pump
The air stayed.
Further improvement of the present invention is：Spout hole is set between sprue described in each two.
The beneficial effects of the invention are as follows：The present invention's thes improvement is that：Existing mould is carried out before die casting first
Improve, make die-casting die intracavitary formed with circular groove structure, and the circular groove exactly on pedal surface broach groove,
So during die casting, several anti-skid bulges, these some anti-skid bulges will be formed on the comb teeth bar of pedal
After formation, anti-skidding effect, the safety either Anywhere trampled using can improve will be played in actual use
Property, stability, prevent accident；Secondly, it is to be improved existing running gate system before die casting, specifically before die casting
Triangle is set to shunt boss outside die casting, the front end connection of triangle shunting boss sets horizontal running channel, horizontal running channel
Front end is set up in parallel some sprues, and using a most middle sprue as symmetry axis, each sprue on its both sides
Bore increases successively according to direction from the close-by examples to those far off, so will uniformly disperse from the molten metal of triangle shunting boss outflow
Into each sprue, and by the evacuation of sprue progress molten metal, and the size of each sprue per side is inconsistent,
It so can preferably play a part of evacuating molten metal, and ensure in each sprue molten metal smoothly flow forward,
Do not hinder.
Brief description of the drawings
Fig. 1 is the schematic diagram of running gate system of the present invention.
Wherein：1- triangles shunt boss, 2- transverse direction running channels, and 3- connects head piece, 4- sprues, 5- die cavities.
Embodiment
In order that one of ordinary skill in the art is better understood on technical scheme, with reference to embodiment
Technical scheme is further described.
Embodiment：A kind of surface anti-skidding type aluminium alloy step pedal preparation technology, comprises the following steps：
（1）Die improvement：The die cavity 5 of step pedal die casting in die casting machine is reprocessed before die casting, specifically
Be exactly the position of every pedal broach groove and to process some circular grooves to the roof direction of die cavity 5 in die cavity 5；
（2）Mold cleaning：Mould is opened, it is by compressed air high pressure draught that the impurity progress of all passages in mould is thorough
Bottom is cleared up, and before die casting, will be vacuumized by vavuum pump in die cavity 5, is removed the air of residual in die cavity 5, is prevented the production of die casting
Product surface causes the generation of bubble due to the presence of air；
（3）The setting of running gate system：Reference picture 1, triangle is set outside die casting before die casting to shunt boss 1, three
The front end connection of angular shunting boss 1 sets horizontal running channel 2, and the horizontal front end of running channel 2 is set up in parallel some sprues 4, and with
A most middle sprue 4 is symmetry axis, and the bore of each sprue 4 on its both sides increases successively according to direction from the close-by examples to those far off
Greatly, the interface of each sprue 4 and the horizontal junction of running channel 2 be machined be shaped as isosceles trapezoidal structure connect head piece 3, and often
The size that head piece 3 is connect corresponding on individual sprue 4 also increases successively, and spout hole is set between sprue 4 described in each two；Triangle
The front end connection of shape shunting boss 1 sets horizontal running channel 2, and the horizontal front end of running channel 2 is set up in parallel some sprues 4, and with most
A middle sprue 4 is symmetry axis, and the bore of each sprue 4 on its both sides increases successively according to direction from the close-by examples to those far off
Greatly, triangle shunting boss 1 has the function that molten metal balances, and is advantageous to molten metal and is flowed to the horizontal both sides of running channel 2, delays to lean on
The time of the liquid metal spraying for dividing cast gate of nearly sprue, the molten metal so flowed out from triangle shunting boss 1 will be uniform
Be distributed in each sprue 4, and by sprue 4 carry out molten metal evacuation, and per side each sprue 4 chi
It is very little inconsistent, it so can preferably play a part of evacuating molten metal, and ensure that molten metal is smoothly in each sprue 4
Flow forward, do not hinder, and it is the handing-over mouth between horizontal running channel 2 and sprue 4 to connect head piece 3, is arranged to isosceles trapezoid knot
Structure can be very good to play the purpose of dispersed metal liquid, also has, the phenomenon of overflow is caused in order to prevent metal flow velocity too fast,
, can be with the flow velocity of budget metals liquid by spout hole therefore connection sets spout hole between two sprues 4；
（4）Alloy molten solution：Aluminium alloy high-temperature firing is incubated into the molten state that temperature is 630-680 DEG C before die casting；
（5）Mould preheats：Die casting machine is opened, the mould of die casting machine is preheating to 150-180 DEG C, is preheating to after formulating temperature
10-15 minutes are incubated, make the temperature of die casting each several part in die casting machine consistent；
（6）Cast, injection：Mold temperature after preheating is again raised to operating temperature as 180-210 DEG C, then from pressure
The molten metal of molten state is poured at the top of the triangle shunting boss 1 of casting machine directly down, and molten metal shunts convex along triangle
The two of platform 1 branch into horizontal running channel 2, and are taken advantage of a situation by the head piece 3 that connects between horizontal running channel 2 and each sprue 4 from triangle
Open die casting machine even into the cast that molten metal is carried out in the die cavity 5 of pedal die casting and carry out in the both sides of shape shunting boss 1
Injection, injection ratio pressure 20-30MPa, the speed 0.1-0.4m/s of injection punch head, finally it is molded in pedal die cavity 5；
（7）Die sinking, extract chipware：Releasing agent is injected into die cavity 5 before die sinking, or so 5-6 minutes after releasing agent injection
Time molded, chipware is taken out after die sinking, obtain by the circular groove and on each comb teeth bar integrated die-casting into
Some anti-skid bulges of type, the circular groove is exactly on pedal surface broach groove, so during die casting, Jiu Hui
Several anti-skid bulges are formed on the comb teeth bar of pedal, after these some anti-skid bulges are formed, in actual use
Anti-skidding effect can be played, the security either Anywhere trampled using can improve, stability, prevents accident；
（8）Surface treatment；The surface of chipware is polished, natural cooling in air is placed in after burr removing.
Claims (2)
1. a kind of surface anti-skidding type aluminium alloy step pedal preparation technology, it is characterised in that comprise the following steps：
（1）Die improvement：The die cavity of step pedal die casting in die casting machine is reprocessed before die casting, is exactly specifically
The position of every pedal broach groove and some circular grooves are processed in die cavity to die cavity roof direction；
（2）Mold cleaning：Mould is opened, it is by compressed air high pressure draught that the impurity progress of all passages in mould is thoroughly clear
Reason；
（3）The setting of running gate system：Triangle is set to shunt boss outside die casting before die casting, triangle shunting boss
Front end connection sets horizontal running channel, and horizontal running channel front end is set up in parallel some sprues, and with a most middle sprue
For symmetry axis, the bore of each sprue on its both sides increases successively according to direction from the close-by examples to those far off；Each sprue and transverse direction
The interface of running channel junction is machined with the head piece that connects for being shaped as isosceles trapezoidal structure, and connects head piece corresponding on each sprue
Size also increase successively；Spout hole is set between sprue described in each two；
（4）Alloy molten solution：Aluminium alloy high-temperature firing is incubated into the molten state that temperature is 630-680 DEG C before die casting；
（5）Mould preheats：Die casting machine is opened, the mould of die casting machine is preheating to 150-180 DEG C, is preheating to after formulating temperature and is incubated
10-15 minutes, make the temperature of die casting each several part in die casting machine consistent；
（6）Cast, injection：Mold temperature after preheating is again raised to operating temperature as 180-210 DEG C, then from die casting machine
The top of triangle shunting boss pour into the molten metal of molten state directly down, molten metal along triangle shunting boss two
Horizontal running channel is branched into, and is taken advantage of a situation by the head piece that connects between horizontal running channel and each sprue from triangle shunting boss
Open die casting machine even into the cast that molten metal is carried out in the die cavity of pedal die casting and carry out injection, injection ratio pressure in both sides
For 20-30MPa, the speed 0.1-0.4m/s of injection punch head, finally it is molded in pedal-type intracavitary；
（7）Die sinking, extract chipware：Releasing agent is injected into die cavity before die sinking, the time of or so 5-6 minutes after releasing agent injection
Molded, chipware is taken out after die sinking, if obtaining by the circular groove and the integrated die-casting shaping on each comb teeth bar
Dry anti-skid bulge；
（8）Surface treatment；The surface of chipware is polished, natural cooling in air is placed in after burr removing.
A kind of 2. surface anti-skidding type aluminium alloy step pedal preparation technology according to claim 1, it is characterised in that：Pressing
It before casting, will be vacuumized by vavuum pump in die cavity, remove the air of residual in die cavity.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610025825.8A CN105598414B (en) | 2016-01-15 | 2016-01-15 | Surface anti-skidding type aluminium alloy step pedal preparation technology |
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| CN201610025825.8A CN105598414B (en) | 2016-01-15 | 2016-01-15 | Surface anti-skidding type aluminium alloy step pedal preparation technology |
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| CN105598414B true CN105598414B (en) | 2018-03-23 |
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| JP7063746B2 (en) * | 2018-06-28 | 2022-05-09 | トヨタ自動車株式会社 | Die casting casting equipment |
| CN110369683B (en) * | 2019-08-09 | 2020-06-02 | 大连理工大学 | A bearing bush antifriction layer copper alloy filling device and a preparation method of a bearing bush bimetal composite material |
| CN110605373B (en) * | 2019-08-23 | 2021-08-27 | 广东文达镁业科技股份有限公司 | Aluminum alloy building template forming method |
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| CN101537478A (en) * | 2009-04-24 | 2009-09-23 | 华南理工大学 | Die-casting die casting system for magnesium alloy automobile engine cylinder head casing |
| CN202967835U (en) * | 2012-11-14 | 2013-06-05 | 苏州斯迈特东方电梯制造有限公司 | Anti-skid stair for escalator |
| CN203006694U (en) * | 2012-12-12 | 2013-06-19 | 浙江工商职业技术学院 | Anti-skidding elevator comb tooth plate |
| CN103332581A (en) * | 2013-06-28 | 2013-10-02 | 苏州奔一机电有限公司 | Anti-skidding pedal for escalator |
| CN203959629U (en) * | 2014-07-01 | 2014-11-26 | 重庆戈林物流有限责任公司 | A kind of pressure electricity-generating elevator fishback |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| KR101000361B1 (en) * | 2008-08-07 | 2010-12-13 | 현대자동차주식회사 | High pressure casting mold apparatus for manufacturing aluminum cylinder block and manufacturing method of aluminum cylinder block |
| DE102013000746A1 (en) * | 2013-01-17 | 2014-07-17 | Kienle + Spiess Gmbh | Method for producing castings for electrical applications |
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- 2016-01-15 CN CN201610025825.8A patent/CN105598414B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101537478A (en) * | 2009-04-24 | 2009-09-23 | 华南理工大学 | Die-casting die casting system for magnesium alloy automobile engine cylinder head casing |
| CN202967835U (en) * | 2012-11-14 | 2013-06-05 | 苏州斯迈特东方电梯制造有限公司 | Anti-skid stair for escalator |
| CN203006694U (en) * | 2012-12-12 | 2013-06-19 | 浙江工商职业技术学院 | Anti-skidding elevator comb tooth plate |
| CN103332581A (en) * | 2013-06-28 | 2013-10-02 | 苏州奔一机电有限公司 | Anti-skidding pedal for escalator |
| CN203959629U (en) * | 2014-07-01 | 2014-11-26 | 重庆戈林物流有限责任公司 | A kind of pressure electricity-generating elevator fishback |
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