CN102371324A - Bolt cold header, mould box thereof and correcting and adjusting method for positioning mould - Google Patents
Bolt cold header, mould box thereof and correcting and adjusting method for positioning mould Download PDFInfo
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- CN102371324A CN102371324A CN2010102530964A CN201010253096A CN102371324A CN 102371324 A CN102371324 A CN 102371324A CN 2010102530964 A CN2010102530964 A CN 2010102530964A CN 201010253096 A CN201010253096 A CN 201010253096A CN 102371324 A CN102371324 A CN 102371324A
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Abstract
The invention discloses a bolt cold header, a mould box thereof and a correcting and adjusting method for positioning a mould. The bolt cold header comprises a machine body, a head sliding block, a mould box and a driving mechanism. In the bolt cold header, the mould and the mould box are separated, the mould placed in the mould box is finely adjusted and positioned and a fine adjusting positioning method is used for positioning and adjusting the mould box, thereby completely and accurately aligning the mould with the head, being accurate in positioning, and being high in quality precision of products and high in yield. The head sliding block is improved and is changed into an opening type head, thereby facilitating the replacement of a mould head. The correcting and adjusting method is also performed on the mould head. The opening type head can be used for greatly reducing the crank axle length of a crank shaft connecting rod, increasing an operating torsion and achieving an excellent effect.
Description
Technical field
The present invention relates to a kind of manufacturing equipment of bolt, especially a kind of bolt cold headers and moulding box jig centering method of adjustment thereof.
Background technology
The basic structure of existing bolt cold headers is made up of the heading slide block of crankshaft connecting rod system driving and the moulding box relative with it, and corresponding die bolt hole is arranged on moulding box and heading, is generally three, and bolt is through three cold-heading moldings.Because it needs three cold-headings, and the die hole of each cold-heading is different, and this just need take out semi-finished product from die hole; Put into another die hole, the workpiece shift of conventional method adopts " pincers case " (being equivalent to manipulator), this cold headers complex structure; Complex structure; Fault rate is high, and the transposition time is long, and work efficiency is low; Also having a kind of method is to adopt the rotation moulding box, through the rotation transposition location of moulding box, realizes the conversion of workpiece station, and this method not only efficient is high; And frame for movement is simpler, still, has a problem perplexing people all the time; That is exactly that the location of moulding box is because moulding box often rotates; The slight error that gear driven mechanism is brought make the error in the corresponding hole of moulding box, and installation mold error and moulding box is not steady; Cause the bolt percent defective of manufacturing quite high, be difficult to reach the processing that high density requires, the bad assurance of product quality.
Summary of the invention
The technical issues that need to address of the present invention provide a kind of moulding box accurate positioning, and the die hole location is fine-tuning, and the product precision of production is high, the moulding box jig method of adjustment of bolt cold headers that yield rate is high and this cold headers.
For addressing the above problem, the technical scheme that the present invention taked is: a kind of bolt cold headers, comprise body, heading slide block, moulding box, driving mechanism, and the heading slide block is positioned at the slideway of body; Be connected through between crankshaft-link rod and the driving mechanism, moulding box is positioned at the opposite of heading slide block, through bearing fixing on the back shaft of body; Moulding box is a cylindrical structural, and annular is evenly equipped with the die frame hole on the face of heading slide block relatively, and die frame is equipped with die frame in the hole; Fixed mould in the die frame, mould is corresponding with the heading position on the heading slide block, and gear and locating wheel also are housed on bolster; Locating wheel is the most inboard, and gear tightens together between locating wheel, gear and the moulding box in the centre; Gear is connected with driving mechanism, and locating wheel is connected with driving mechanism through detent mechanism, and said die frame hole is delthyrium or square hole; The die frame profile is identical with die hole, and size is less than die hole, and die frame places die hole; Through wedge shape adjustment sheet adjustment fixed mould frame, perhaps adjust the fixed mould frame with patch through the adjustable plate that is installed on the die hole inwall, mold center and heading are centered close on the line.
Said detent mechanism comprises crankshaft connecting rod system, alignment pin, and alignment pin is connected with driving mechanism through crankshaft connecting rod system, and alignment pin matches with locating hole on the locating wheel.
Said locating hole quantity is the twice of die hole, and it is centered close on the same circumference, and per two constitute one group; One is square hole, and one is wedged hole, and the alignment pin corresponding with locating hole also is two; Shape and locating hole adapt, and size is less than locating hole, install adjustment plate on the inclined-plane of wedge shape locating hole; Inwall at square hole also is equipped with adjustable plate, is used for adjustment location moulding box, and mold center and heading on the moulding box are centered close on the line.
Said heading slide block is made up of main heading and auxiliary heading, and the mould heading of three operations is installed on the main heading, and is divided into three parts, and a part is a main part, and two parts are for can lift portion, and three parts are for taking off material portion; Wherein main part is connected with crankshaft-link rod; The same side that can lift portion and main part links together through hinge; Take off material portion for can lifting the part of portion, on the hopper of taking off, mould heading and locating hole are arranged, be connected through spring with the portion of can lifting; The material that takes off that is used for last station; On the auxiliary heading two preface charging headings are installed, and are divided into two parts, a part is a main part; Two parts are for can lift portion, and wherein main part is connected with crankshaft-link rod; The same side that can lift portion and main part links together through hinge.
Above-mentioned die frame centre bore bottom is provided with adjusting rod, and adjusting rod is held by the adjustment silk, and the adjustment silk is a hollow, and the hollow space of hollow adjustment silk is installed with and takes off the material push rod, takes off the material push rod and withstands adjusting rod.
A kind of moulding box jig centering method of adjustment of bolt cold headers adopts the mode of location dimension fine setting to carry out, and specifically may further comprise the steps:
1. die frame and the moulding box with fixed mould separates, and moulding box is as carrier, and die frame places in the moulding box, evenly opening square hole or delthyrium on request on moulding box, and size is greater than die frame appearance and size, die frame placed in the hole that moulding box opens,
2. the plug of the slit between die frame and moulding box adds the wedge shape adjustment part, to the die frame centering, perhaps adjusts the die frame position through the adjustment plate is installed on the hole inwall of opening at moulding box, to the die frame centering.
3. realize through alignment pin and locating hole the moulding box location, on moulding box, drives locating hole, utilizes the alignment pin location; For accurate location, alignment pin and locating hole all are two pairs for every group, i.e. two corresponding two alignment pins of locating hole; Two one of locating holes are wedged hole; One is square opening, and two alignment pins are corresponding with locating hole, and size is less than locating hole; Two alignment pins are processed one, through the install adjustment plate and come the accurately position location of adjustment alignment pin at square hole inwall install adjustment plate on the wedged hole inclined-plane.
The centering of mould also comprises the centering of centre bore bottom, is employed in the centre bore bottom planarization that adjusting rod is regulated the bottom is set, and through the distance of adjustment silk adjusting adjusting rod apart from port, change bolt specification.
Adopt the beneficial effect that technique scheme produced to be: the present invention is through separating mould and moulding box, and the die frame that is opposite to the fixed mould in the moulding box is finely tuned the location, adopts fine-adjustment positioning method that moulding box is positioned adjustment simultaneously; Make mould and heading fully accurately relatively, the location is accurate, and the product quality precision of production is good; Yield rate is high, and the heading slide block is improved, and changes it into liftable heading; Be convenient for changing the heading mould, simultaneously the heading mould also adopted the wedge shape centering, regulate more accurately firm; The heading slide block has shortened the crankshaft length of crankshaft-link rod greatly, has increased operation torque, renders a service; The heading slide block has shortened movement length simultaneously, has improved stability, also can improve operating rate.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is a moulding box Facad structure sketch map of the present invention;
Fig. 3 is that moulding box locating wheel of the present invention dissects structural representation;
Fig. 4 is that Fig. 2 mould of the present invention dissects structural representation;
Fig. 5 is that heading slide block of the present invention is faced structural representation;
Fig. 6 is a driving mechanism sketch map of the present invention;
Wherein: 1, heading slide block, 2, moulding box, 3, body, 4, locating wheel, 5, gear, 6, adjusting rod; 7, take off material portion, 8, can lift portion, 9, main part, 10, slideway, 11, driving mechanism, 12, crankshaft-link rod 13, hinge; 14, die frame, 15, the blank cam, 16, pulley, 17, cutter, 18, charging hole, 19, back shaft; 20, adjustment silk, 21, spring, 22, adjustable plate, 23, crankshaft connecting rod system, 24, alignment pin, 25, square hole; 26, wedged hole, 30, power input gear, 31, main shaft, 32, power transmission shaft, 33, bevel gear, 34, the blank cam; 35, driving gear, 36, jackshaft, 37, idler gear, 38, be interrupted thumb wheel, 39, take off the material cam, 40, bull wheel.
The specific embodiment
Below in conjunction with accompanying drawing the present invention is done and to describe in further detail:
Its basic structure of bolt cold headers of the present invention is as shown in Figure 1, comprises body 3, heading slide block 1, moulding box 2, driving mechanism 11, and heading slide block 1 is positioned at the slideway 10 of body 3; Be connected through between crankshaft-link rod 12 and the driving mechanism 11, moulding box 2 is positioned at the opposite of heading slide block 1, through bearing fixing on the back shaft 19 of body 3; Gear 5 and locating wheel 4 also are housed on bolster, and locating wheel 4 is the most inboard, and gear 5 is in the centre; Tighten together between locating wheel 4, gear 5 and the moulding box 2; Form an integral body, gear 5 is connected with driving mechanism 11, and locating wheel 4 is connected with driving mechanism 11 through detent mechanism; When the drive mechanism gear rotated, gear driven moulding box and locating wheel rotated together, and under the driving mechanism effect, moulding box turns over certain angle, got into next station, and this moment, locating wheel was through the detent mechanism location.Above-mentioned heading slide block is made up of main heading and auxiliary heading, and the mould heading of three operations is installed on the main heading, on the auxiliary heading two preface charging headings is installed; In order to shorten bent axle, increase moment of torsion (increasing the cold-heading power of heading), and the convenient good bolt of will upsetting takes out; Main heading is divided into three parts; A part is that main part 9, two parts are for can lift portion's 8, three parts for taking off material portion 7; Wherein main part 9 is connected with crankshaft-link rod 12; The same side that can lift portion 8 and main part 9 links together through hinge 13; Auxiliary heading also is divided into two parts, and a part is a main part, and two parts are for can lift portion, and wherein main part is connected with crankshaft-link rod, and the same side that can lift portion and main part links together through hinge 13; Like this, when changing heading, can lift portion 8 and start replacing, thus can with bent axle do shorter; The material portion of taking off 7 of main heading be for can lifting the part of portion 8, and can lift portion 8 and is connected through spring 21, is used for the material that takes off of last station; Take off material portion bottom and have the hopper that takes off that is used to take off material; On the face of moulding box the heading mould is installed relatively, the bottom also is provided with locating hole, is located when taking off material; Do not return with the heading slide block; When treating that the heading slide block has just returned (taking off material accomplishes), locate releasedly, take off material portion recurrence origin-location under spring 21 effects.
As shown in Figure 2, moulding box 3 is a cylindrical structural, is evenly equipped with die hole (being used for installation mold) on the toroid of the face upper edge circumference of heading slide block 1 relatively; Die frame 14 is housed in the die hole, and die frame 14 is corresponding with the heading position on the heading slide block 1, and above-mentioned die hole is a square hole; The wall of square hole is equipped with adjustable plate 22, and referring to Fig. 4, die frame 14 profiles are identical with die hole; Size is less than die hole; Die frame 14 places die hole, with patch adjustment fixed mould, mold center and heading is centered close on the line through the adjustment adjustable plate.Die hole among the present invention also can adopt delthyrium, and the adjustment location of mould also can adopt the wedge shape adjustment sheet to adjust fixed mould, thereby guarantees that mold center and heading are centered close on the line, improves accuracy, guarantees product quality and precision.
Above-mentioned detent mechanism comprises crankshaft connecting rod system 23, alignment pin 24, and referring to Fig. 3, alignment pin 24 is connected with driving mechanism through crankshaft connecting rod system 23, and alignment pin 23 matches with locating hole on the locating wheel 4.The quantity of locating hole is the twice of die hole quantity, and it is centered close on the same circumference one group of per two formation; One is that 25, one of square holes are wedged hole 26, and therefore the alignment pin 24 corresponding with it also is two; The alignment pin shape matches with locating hole, and just undersized is in locating hole, install adjustment plate on the inclined-plane of wedge shape locating hole; Inwall at square hole also is equipped with adjustable plate, is used for adjustment location moulding box, and mold center and heading on the moulding box are centered close on the line; In order to locate accurately, and the dislocation that is not moved in the course of the work, two alignment pins are made of one or fixing, making its spacing is certain value, like this, locatees easy to adjustly, accurate, has guaranteed required precision.
Above-mentioned die frame centre bore bottom is provided with adjusting rod 6, referring to Fig. 1, regulates 6 and is made up of three parts; The part that contacts with workpiece is preceding push rod, and mid portion is middle push rod, and third part is the afterbody push rod; Sinciput masthead portion scalable, the flatness of regulating the bottom surface in mold center hole, the afterbody push rod is held by adjustment silk 20; And the thin portion of afterbody push rod pierces into the hollow bulb of adjustment silk, takes off the material push rod and expects to withstand the afterbody push rod under the cam driven taking off of drive mechanism; Make its outside ejection workpiece, accomplish and take off material, through adjustment adjustment silk; Its afterbody push rod shift position of holding (being the adjusting rod shift position) changes its distance apart from moulding box upper surface (face relative with heading), thereby regulates the specification of the bolt of made.
Shown in Figure 5 for the front view of heading slide block of the present invention (face of moulding box relatively) is provided with 3 station master headings and 1 auxilliary heading, auxilliary heading is used for the material that cutting knife downcuts is pushed die hole.
Shown in Figure 6 is driving mechanism sketch of the present invention, and driving mechanism 11 comprises the main shaft 31 that links to each other with crankshaft-link rod 6, power transmission shaft 32; Both are through bevel-gear sett 33 transmission that is connected with a joggle, dynamic input gear 30 on the main shaft 31, power input gear through gear and axle by bull wheel 40 inputs; Blank cam 34 is arranged, driving gear 35, jackshaft 36 on the power transmission shaft; Idler gear 37 is interrupted thumb wheel 38, crankshaft connecting rod system 23; Be interrupted that thumb wheel 38 and crankshaft connecting rod system 23 are coaxial to be fixed together and all to be fixed on the jackshaft 36 with idler gear 37, driving gear 35 and idler gear 37 engagements, the structure of being interrupted thumb wheel is similar with the prior art gear structure; Operation principle is identical, repeats no more at this.The blank cam, taking off the material cam, all is to realize blank, take off material through cam mechanism driving connecting rod (perhaps push rod).Operation principle repeats no more at this.
The installation of the mould heading of installing on the heading slide block among the present invention adjustment mode and die frame identical, its adjustment scheme and the method for adjustment step at this repeated description no longer.
The present invention also provides a kind of moulding box jig centering method of adjustment of bolt cold headers, adopts the mode of location dimension fine setting to carry out, and specifically may further comprise the steps:
1. mould and moulding box are separated, moulding box is as carrier, and mould places in the moulding box, evenly opening square hole or delthyrium on request on moulding box, and size is greater than the die shape size, mould placed in the hole that moulding box opens,
2. the plug of the slit between mould and moulding box adds the wedge shape adjustment part, to the mould centering, perhaps adjusts die location through the adjustment plate is installed on the hole inwall of opening at moulding box, to the mould centering,
3. realize through alignment pin and locating hole the moulding box location, on moulding box, drives locating hole, utilizes the alignment pin location; For accurate location, alignment pin and locating hole all are two pairs for every group, i.e. two corresponding two alignment pins of locating hole; Two one of locating holes are wedged hole; One is square opening, and two alignment pins are corresponding with locating hole, and size is less than locating hole; Two alignment pins are processed one, through the install adjustment plate and come the accurately position location of adjustment alignment pin at square hole inwall install adjustment plate on the wedged hole inclined-plane.
The centering of mould also comprises the centering of centre bore bottom; Being employed in centre bore bottom is provided with adjusting rod and regulates the planarization of bottom (the adjusting rod top is adopted the wedge-shaped adjusting block adjustment or adopted the adjustment plate to adjust with the workpiece contact-making surface); And, change bolt specification through the distance of adjustment silk adjusting adjusting rod apart from port.
Claims (7)
1. bolt cold headers comprise body, heading slide block, moulding box, driving mechanism, and the heading slide block is positioned at the slideway of body; Be connected through between crankshaft-link rod and the driving mechanism, moulding box is positioned at the opposite of heading slide block, through bearing fixing on the back shaft of body; Moulding box is a cylindrical structural, and annular is evenly equipped with the die frame hole on the face of heading slide block relatively, and die frame is equipped with die frame in the hole; Fixed mould in the die frame, mould is corresponding with the heading position on the heading slide block, and gear and locating wheel also are housed on bolster; Locating wheel is the most inboard, and gear tightens together between locating wheel, gear and the moulding box in the centre; Gear is connected with driving mechanism, and locating wheel is connected with driving mechanism through detent mechanism, and it is characterized in that: said die frame hole is delthyrium or square hole; The die frame profile is identical with die hole, and size is less than die hole, and die frame places die hole; Through wedge shape adjustment sheet adjustment fixed mould frame, perhaps adjust the fixed mould frame with patch through the adjustable plate that is installed on the die hole inwall, mold center and heading are centered close on the line.
2. bolt cold headers according to claim 1 is characterized in that said detent mechanism comprises crankshaft connecting rod system, alignment pin, and alignment pin is connected with driving mechanism through crankshaft connecting rod system, and alignment pin matches with locating hole on the locating wheel.
3. bolt cold headers according to claim 2 is characterized in that said locating hole quantity is the twice of die hole, and it is centered close on the same circumference; Per two constitute one group, and one is square hole, and one is wedged hole; The alignment pin corresponding with locating hole also is two, and shape and locating hole adapt, and size is less than locating hole; Install adjustment plate on the inclined-plane of wedge shape locating hole; Inwall at square hole also is equipped with adjustable plate, is used for adjustment location moulding box, and mold center and heading on the moulding box are centered close on the line.
4. bolt cold headers according to claim 1 is characterized in that said heading slide block is made up of main heading and auxiliary heading, and the mould heading of three operations is installed on the main heading; And be divided into three parts; A part is a main part, and two parts are for can lift portion, and three parts are for taking off material portion; Wherein main part is connected with crankshaft-link rod; The same side that can lift portion and main part links together through hinge; Take off material portion for can lifting the part of portion, on the hopper of taking off, mould heading and locating hole are arranged, be connected through spring with the portion of can lifting; The material that takes off that is used for last station; On the auxiliary heading two preface charging headings are installed, and are divided into two parts, a part is a main part; Two parts are for can lift portion, and wherein main part is connected with crankshaft-link rod; The same side that can lift portion and main part links together through hinge.
5. bolt cold headers according to claim 1 is characterized in that die frame centre bore bottom is provided with adjusting rod, and adjusting rod is held by the adjustment silk, and the adjustment silk is a hollow, and the hollow space of hollow adjustment silk is installed with and takes off the material push rod, takes off the material push rod and withstands adjusting rod.
6. the moulding box jig centering method of adjustment of bolt cold headers adopts the mode of location dimension fine setting to carry out, and specifically may further comprise the steps:
1. die frame and the moulding box with fixed mould separates, and moulding box is as carrier, and die frame places in the moulding box, evenly opening square hole or delthyrium on request on moulding box, and size is greater than die frame appearance and size, die frame placed in the hole that moulding box opens,
2. the plug of the slit between die frame and moulding box adds the wedge shape adjustment part, to the die frame centering, perhaps adjusts the die frame position through the adjustment plate is installed on the hole inwall of opening at moulding box, to the die frame centering.
3. realize through alignment pin and locating hole the moulding box location, on moulding box, drives locating hole, utilizes the alignment pin location; For accurate location, alignment pin and locating hole all are two pairs for every group, i.e. two corresponding two alignment pins of locating hole; Two one of locating holes are wedged hole; One is square opening, and two alignment pins are corresponding with locating hole, and size is less than locating hole; Two alignment pins are processed one, through the install adjustment plate and come the accurately position location of adjustment alignment pin at square hole inwall install adjustment plate on the wedged hole inclined-plane.
7. the moulding box jig centering method of adjustment of bolt cold headers according to claim 6; The centering that it is characterized in that mould also comprises the centering of centre bore bottom; Be employed in the centre bore bottom planarization that adjusting rod is regulated the bottom is set; And, change bolt specification through the distance of adjustment silk adjusting adjusting rod apart from port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010253096.4A CN102371324B (en) | 2010-08-16 | 2010-08-16 | Bolt cold-header and moulding box jig leveling and adjusting method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010253096.4A CN102371324B (en) | 2010-08-16 | 2010-08-16 | Bolt cold-header and moulding box jig leveling and adjusting method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102371324A true CN102371324A (en) | 2012-03-14 |
| CN102371324B CN102371324B (en) | 2015-09-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010253096.4A Expired - Fee Related CN102371324B (en) | 2010-08-16 | 2010-08-16 | Bolt cold-header and moulding box jig leveling and adjusting method thereof |
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| Country | Link |
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| CN (1) | CN102371324B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102601292A (en) * | 2012-03-28 | 2012-07-25 | 无锡兆一锻压数控装备有限公司 | Mould locking device capable of bearing larger impact |
| CN107617712A (en) * | 2017-11-01 | 2018-01-23 | 海盐大宁紧固件有限公司 | A kind of cold headers of quickly discharging |
| CN110542377A (en) * | 2019-09-17 | 2019-12-06 | 冯强 | a detect and measure quick aligning device for production of heavy truck accessories |
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| CN2379233Y (en) * | 1999-06-30 | 2000-05-24 | 杨东佐 | Multistation cold upsetting formation machine |
| CN2558481Y (en) * | 2002-06-26 | 2003-07-02 | 王占国 | Multi-station automatic bolt cold-heading machine |
| CN2737485Y (en) * | 2004-09-30 | 2005-11-02 | 杨东佐 | Cold upsetter die holder structure and cold upsetter |
| CN2850757Y (en) * | 2005-04-08 | 2006-12-27 | 吴万祥 | Multiple-work position bolt-punching machine |
| JP4013215B2 (en) * | 2001-06-08 | 2007-11-28 | 株式会社阪村機械製作所 | Forging machine |
| CN201768862U (en) * | 2010-08-16 | 2011-03-23 | 郭朝阳 | Bolt cold header |
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2010
- 2010-08-16 CN CN201010253096.4A patent/CN102371324B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2379233Y (en) * | 1999-06-30 | 2000-05-24 | 杨东佐 | Multistation cold upsetting formation machine |
| JP4013215B2 (en) * | 2001-06-08 | 2007-11-28 | 株式会社阪村機械製作所 | Forging machine |
| CN2558481Y (en) * | 2002-06-26 | 2003-07-02 | 王占国 | Multi-station automatic bolt cold-heading machine |
| CN2737485Y (en) * | 2004-09-30 | 2005-11-02 | 杨东佐 | Cold upsetter die holder structure and cold upsetter |
| CN2850757Y (en) * | 2005-04-08 | 2006-12-27 | 吴万祥 | Multiple-work position bolt-punching machine |
| CN201768862U (en) * | 2010-08-16 | 2011-03-23 | 郭朝阳 | Bolt cold header |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102601292A (en) * | 2012-03-28 | 2012-07-25 | 无锡兆一锻压数控装备有限公司 | Mould locking device capable of bearing larger impact |
| CN107617712A (en) * | 2017-11-01 | 2018-01-23 | 海盐大宁紧固件有限公司 | A kind of cold headers of quickly discharging |
| CN107617712B (en) * | 2017-11-01 | 2023-06-16 | 海盐大宁紧固件股份有限公司 | Cold header capable of discharging rapidly |
| CN110542377A (en) * | 2019-09-17 | 2019-12-06 | 冯强 | a detect and measure quick aligning device for production of heavy truck accessories |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102371324B (en) | 2015-09-23 |
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