CN107983931A - A kind of die-casting process method of padlock body - Google Patents
A kind of die-casting process method of padlock body Download PDFInfo
- Publication number
- CN107983931A CN107983931A CN201711388381.5A CN201711388381A CN107983931A CN 107983931 A CN107983931 A CN 107983931A CN 201711388381 A CN201711388381 A CN 201711388381A CN 107983931 A CN107983931 A CN 107983931A
- Authority
- CN
- China
- Prior art keywords
- lock body
- die casting
- cavity
- die
- body cavity
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- Legal status (The legal status 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 status listed.)
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Classifications
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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
- B22D17/14—Machines with evacuated die cavity
-
- 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
- B22D17/2015—Means for forcing the molten metal into the die
- B22D17/2069—Exerting after-pressure on the moulding material
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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 a kind of die-casting process method of padlock body, it is desirable to provide a kind of manufacturing procedure for simplifying padlock body, improves stock utilization, reduces the die-casting process method of the padlock body of production cost.It includes die casting, and die casting is equipped with the connection running channel of main running channel, some lock body cavities and the main running channel of connection and lock body cavity, and the die-casting process method of padlock body comprises the following steps successively：First, die casting molding；Second, die casting is preheated；3rd, vacuumize process is carried out to the lock body cavity of die casting；4th, it will be cooled and shaped using die casting machine in the lock body cavity of molten metal bath injection to die casting.
Description
Technical field
The present invention relates to a kind of lock body processing method, and in particular to a kind of die-casting process method of padlock body.
Background technology
Padlock is family most ancient, most huge in the lockset world, its species is various, different.Current padlock lock
The processing method of body is all with the following method：The long billot of M/B, then, carries out down long billot according to lock body specification
Material, obtains the lock body blank for meeting size；Followed by, two end faces of lock body blank are polished, then on drilling machine plus
Work lockhole, lock body notch is milled out on milling machine and carries out chamfering etc..The processing method of current padlock body not only manufacturing procedure
Complexity, required device category is various, and space is big, low production efficiency；And stock utilization is low, production cost is high.
The content of the invention
Simplify adding for padlock body the purpose of the present invention is to overcome the shortcomings in the prior art and to provide a kind of
Work process, improves stock utilization, reduces the die-casting process method of the padlock body of production cost.
The technical scheme is that：
A kind of die-casting process method of padlock body, including die casting, die casting are equipped with main running channel, some lock body cavities
And the connection running channel of the main running channel of connection and lock body cavity,
The die-casting process method of padlock body comprises the following steps successively：
First, die casting molding；
Second, die casting is preheated；
3rd, vacuumize process is carried out to the lock body cavity of die casting；
4th, it will be cooled and shaped using die casting machine in the lock body cavity of molten metal bath injection to die casting.
The padlock body of this programme utilizes die casting machine and die casting, and padlock is directly produced using the method for die cast
Lock body blank (remaining casting material beyond padlock body blank can melt down utilization), then carries out blank lockhole on drilling machine
Processing, the die-casting process method of the padlock body of this programme can effectively simplify the manufacturing procedure of padlock body, save artificial
Cost, shortens production line, reduces occupied space；Stock utilization is up to more than 99%, effectively improves stock utilization, reduces life
Produce cost.
Preferably, in four steps, using die casting machine by the lock body cavity of molten metal bath injection to die casting
What is be cooled and shaped comprises the following steps that：
First, die casting machine under the action of pressure T1 is set by the lock body cavity of molten metal bath injection to die casting, when
After the full each lock body cavity of molten metal bath filling, die casting machine is by boost in pressure to T2；Then, die casting machine keeps T2 die casting pressure straight
Molten metal bath into lock body cavity is cooled and shaped.
Following steps are undergone successively during the padlock body die cast of this programme：
First, low pressure filling molten metal bath（Die casting machine is under the action of pressure T1 is set by molten metal bath injection to die casting
In the lock body cavity of mould）；It the orderly filling of molten metal bath is expired lock body cavity, arrange lock body type intracavity gas
Go out, when avoiding the high pressure from filling, the gas in cavity be difficult be completely exhausted out causing casting lock body easily occur being partially formed stomata or
The defects of shrinkage hole；
Then, die casting machine by boost in pressure to T2, and keep T2 die casting pressure until lock body cavity in molten metal bath cooling
Shaping, so can not only improve the intensity and hardness of casting lock body, but also the surface of casting lock body is solid, smooth.
Include setting with the one-to-one core-pulling mechanism of lock body cavity, core-pulling mechanism preferably, die casting is further included
The first pilot hole being connected on die casting lateral surface and with lock body cavity and the second pilot hole, be slidably arranged in first and lead
The first core pulling column into hole and the second core pulling column being slidably arranged in the second pilot hole, the axis of first pilot hole with
The axis of second pilot hole is parallel.
In second step, the method preheated to die casting is as follows：
First, the first core pulling column in each core-pulling mechanism and the second core pulling column are extracted out, lock body cavity is connected with the external world；Connect
, thermal current is passed through into each lock body cavity by main running channel；Thermal current can so flowed in running channel and each lock body cavity
It is logical, by the die casting that directly heats of thermal current from-inner-to-outer, ensure that the temperature of lock body cavity inner wall is uniformly reliable；So may be used
To avoid because of lock body cavity inner wall preheating temperature temperature not enough and there are the temperature difference caused by casting lock body surface defect.
Followed by the first core pulling column in each core-pulling mechanism and the second core pulling column are stretched into place, and keeps to each lock body
Thermal current is passed through in cavity；It can so heat, protect to stretching into the first core pulling column in lock body cavity and the second core pulling column
The temperature that card stretches into the first core pulling column and the second core pulling column in lock body cavity is consistent with the temperature of lock body cavity inner wall, so may be used
To avoid the surface defect of the casting lock body caused by inadequate of the preheating temperature temperature because of core pulling column.
Finally, stop being passed through thermal current, complete the preheating to die casting.
Preferably, die casting, which further includes stomata one-to-one with lock body cavity, eliminates structure, stomata eliminates structure
Connection passageway including the reserved cavity being arranged on die casting and the reserved cavity of connection and lock body cavity；
The lock body cavity takes the shape of the letter U, and lock body cavity includes body type cavity and two extension portion cavities positioned at body type cavity the same side,
Two extension portion cavities are connected with cavity main body, and the connection running channel is connected with one of extension portion cavity,
In same lock body cavity：One extension portion cavity phase is connected with being connected running channel, another extension portion cavity phase is with connecting passageway
It is connected.
This programme structure designs the company of connection running channel, lock body cavity with connecting passageway using the special construction of lock body cavity
Relation is connect, is made in same lock body cavity：One extension portion cavity phase is connected with being connected running channel, another extension portion cavity phase is with connecting
Passageway is connected；So during molten metal bath fills lock body cavity, molten metal bath pours first filling with being connected master
The extension portion cavity that road is connected, then molten metal bath enters body type cavity, and is entered by body type cavity with connecting passageway phase
In the extension portion cavity phase of connection, finally, molten metal bath is entered in corresponding reserved cavity by connecting passageway, in this way, passing through
This partial melting molten metal for wrapping up bubble is transferred in reserved cavity by the flowing of molten metal bath, so as to further avoid casting
There is the defects of being partially formed stomata or shrinkage hole in part lock body.
The beneficial effects of the invention are as follows：The manufacturing procedure of padlock body can effectively be simplified, saved labour turnover, shorten production
Line, reduces occupied space；Stock utilization is up to more than 99%, effectively improves stock utilization, reduces production cost.
Brief description of the drawings
Fig. 1 is a kind of structure diagram of the die casting of the present invention.
In figure：
Die casting 1；
Main running channel 2；
Lock body cavity 3, body type cavity 3.1, extension portion cavity 3.2；
Connect running channel 4；
Core-pulling mechanism 5, the first core pulling column 5.1, the second core pulling column 5.2；
Stomata eliminates structure 6, reserves cavity 6.1, connects passageway 6.2.
Embodiment
The present invention is described in further detail with embodiment below in conjunction with the accompanying drawings：
As shown in Figure 1, a kind of die-casting process method of padlock body, including die casting 1.
Die casting is equipped with the connection running channel 4 of main running channel 2, some lock body cavities 3 and the main running channel of connection and lock body cavity.
Lock body cavity takes the shape of the letter U.Lock body cavity includes body type cavity 3.1 and two extension portion cavities 3.2 positioned at body type cavity the same side.Two
A extension portion cavity is connected with cavity main body.Connection running channel is connected with one of extension portion cavity.
Die casting further include core-pulling mechanism 5 one-to-one with lock body cavity and with the one-to-one gas of lock body cavity
Hole eliminates structure 6.
Core-pulling mechanism includes the first pilot hole for being arranged on die casting lateral surface and being connected with lock body cavity and the
Two pilot holes, the first core pulling column 5.1 being slidably arranged in the first pilot hole, the second pumping being slidably arranged in the second pilot hole
Stem 5.2 and the driving cylinder for driving the first core pulling column and the movement of the second core pulling column.The axis of first pilot hole and second
The axis of pilot hole is parallel.
Stomata eliminates the reserved cavity 6.1 and the reserved cavity of connection and lock body cavity that structure includes being arranged on die casting
Connection passageway 6.2.
In same lock body cavity：One extension portion cavity phase is connected with being connected running channel, another extension portion cavity phase is with connecting
Passageway is connected.
The die-casting process method of padlock body comprises the following steps successively：
First, die casting molding；
Second, die casting is preheated；
3rd, vacuumize process is carried out to the lock body cavity of die casting；
4th, it will be cooled and shaped using die casting machine in the lock body cavity of molten metal bath injection to die casting.
In second step, the method preheated to die casting is as follows：
First, the first core pulling column in each core-pulling mechanism and the second core pulling column are extracted out, lock body cavity is connected with the external world；
Then, thermal current is passed through into each lock body cavity by main running channel；
Followed by the first core pulling column in each core-pulling mechanism and the second core pulling column are stretched into place, and keeps to each lock body cavity
Inside it is passed through thermal current；
Finally, stop being passed through thermal current, complete the preheating to die casting.
In four steps, it will be cooled and shaped using die casting machine in the lock body cavity of molten metal bath injection to die casting
Comprise the following steps that：
First, die casting machine under the action of pressure T1 is set by the lock body cavity of molten metal bath injection to die casting, when
After the full each lock body cavity of molten metal bath filling, die casting machine is by boost in pressure to T2；Then, die casting machine keeps T2 die casting pressure straight
Molten metal bath into lock body cavity is cooled and shaped.The pressure of T2 is more than 3 times of pressure of T1 in the present embodiment.
Claims (5)
1. a kind of die-casting process method of padlock body, it is characterized in that, including die casting, die casting be equipped with main running channel,
The connection running channel of some lock body cavities and the main running channel of connection and lock body cavity,
The die-casting process method of padlock body comprises the following steps successively：
First, die casting molding；
Second, die casting is preheated；
3rd, vacuumize process is carried out to the lock body cavity of die casting；
4th, it will be cooled and shaped using die casting machine in the lock body cavity of molten metal bath injection to die casting.
2. a kind of die-casting process method of padlock body according to claim 1, it is characterized in that, in the four steps,
Comprised the following steps that using die casting machine by what is be cooled and shaped in the lock body cavity of molten metal bath injection to die casting：
First, die casting machine under the action of pressure T1 is set by the lock body cavity of molten metal bath injection to die casting, when
After the full each lock body cavity of molten metal bath filling, die casting machine is by boost in pressure to T2；Then, die casting machine keeps T2 die casting pressure straight
Molten metal bath into lock body cavity is cooled and shaped.
3. a kind of die-casting process method of padlock body according to claim 1, it is characterized in that, the die casting also wraps
Include with the one-to-one core-pulling mechanism of lock body cavity, core-pulling mechanism include be arranged on die casting lateral surface and with lock body cavity
The first pilot hole being connected and the second pilot hole, the first core pulling column being slidably arranged in the first pilot hole and it is slidably arranged in
The second core pulling column in second pilot hole, the axis of first pilot hole are parallel with the axis of the second pilot hole.
4. a kind of die-casting process method of padlock body according to claim 3, it is characterized in that, in second step, to pressure
The method that casting mould is preheated is as follows：
First, the first core pulling column in each core-pulling mechanism and the second core pulling column are extracted out, lock body cavity is connected with the external world；
Then, thermal current is passed through into each lock body cavity by main running channel；
Followed by the first core pulling column in each core-pulling mechanism and the second core pulling column are stretched into place, and keeps to each lock body cavity
Inside it is passed through thermal current；
Finally, stop being passed through thermal current, complete the preheating to die casting.
5. a kind of die-casting process method of padlock body according to claim 1, it is characterized in that, the die casting also wraps
Include stomata one-to-one with lock body cavity and eliminate structure, stomata eliminates the reserved cavity that structure includes being arranged on die casting
And the connection passageway of the reserved cavity of connection and lock body cavity；
The lock body cavity takes the shape of the letter U, and lock body cavity includes body type cavity and two extension portion cavities positioned at body type cavity the same side,
Two extension portion cavities are connected with cavity main body, and the connection running channel is connected with one of extension portion cavity,
In same lock body cavity：One extension portion cavity phase is connected with being connected running channel, another extension portion cavity phase is with connecting passageway
It is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711388381.5A CN107983931B (en) | 2017-12-20 | 2017-12-20 | A kind of die-casting process method of padlock body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711388381.5A CN107983931B (en) | 2017-12-20 | 2017-12-20 | A kind of die-casting process method of padlock body |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107983931A true CN107983931A (en) | 2018-05-04 |
| CN107983931B CN107983931B (en) | 2019-08-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711388381.5A Active CN107983931B (en) | 2017-12-20 | 2017-12-20 | A kind of die-casting process method of padlock body |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1495173A (en) * | 1922-09-26 | 1924-05-27 | Hacklander Max | Padlock |
| CN1042674A (en) * | 1989-09-30 | 1990-06-06 | 应军 | A kind of manufacture method of aluminium lock body |
| JPH09155654A (en) * | 1995-12-13 | 1997-06-17 | Yokoya:Kk | Joining method for member made of die cast and joined substance |
| CN1412406A (en) * | 2001-10-11 | 2003-04-23 | 樊建国 | Production method of lock body |
| JP2003225752A (en) * | 2002-02-04 | 2003-08-12 | Tokai Rika Co Ltd | Method for manufacturing formed product |
| CN102527980A (en) * | 2010-11-24 | 2012-07-04 | 南通顶点科技服务有限公司 | Pressure casting process for lock |
| CN106077570A (en) * | 2016-07-26 | 2016-11-09 | 东莞华程金属科技有限公司 | The extrusion process of a kind of Novel belt frame inserts and die casting |
-
2017
- 2017-12-20 CN CN201711388381.5A patent/CN107983931B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1495173A (en) * | 1922-09-26 | 1924-05-27 | Hacklander Max | Padlock |
| CN1042674A (en) * | 1989-09-30 | 1990-06-06 | 应军 | A kind of manufacture method of aluminium lock body |
| JPH09155654A (en) * | 1995-12-13 | 1997-06-17 | Yokoya:Kk | Joining method for member made of die cast and joined substance |
| CN1412406A (en) * | 2001-10-11 | 2003-04-23 | 樊建国 | Production method of lock body |
| JP2003225752A (en) * | 2002-02-04 | 2003-08-12 | Tokai Rika Co Ltd | Method for manufacturing formed product |
| CN102527980A (en) * | 2010-11-24 | 2012-07-04 | 南通顶点科技服务有限公司 | Pressure casting process for lock |
| CN106077570A (en) * | 2016-07-26 | 2016-11-09 | 东莞华程金属科技有限公司 | The extrusion process of a kind of Novel belt frame inserts and die casting |
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| Publication number | Publication date |
|---|---|
| CN107983931B (en) | 2019-08-06 |
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Effective date of registration: 20200330 Address after: 215000 No. 52 Longpu Road, Suzhou Industrial Park, Suzhou City, Jiangsu Province Patentee after: SUZHOU DOPOTO AUTO PARTS Co.,Ltd. Address before: 322204 industrial function zoning of Huang Zhai town Pujiang County Jinhua city Zhejiang Province Patentee before: PUJIANG GUANSHAN LOCKSET Co.,Ltd. |