CN104815903A - Die - Google Patents
Die Download PDFInfo
- Publication number
- CN104815903A CN104815903A CN201510144509.8A CN201510144509A CN104815903A CN 104815903 A CN104815903 A CN 104815903A CN 201510144509 A CN201510144509 A CN 201510144509A CN 104815903 A CN104815903 A CN 104815903A
- Authority
- CN
- China
- Prior art keywords
- die
- punch
- steel ball
- forming
- cavity
- Prior art date
- 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.)
- Granted
Links
- 229920001971 elastomer Polymers 0.000 claims abstract description 32
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 28
- 239000010959 steel Substances 0.000 claims abstract description 28
- 238000003825 pressing Methods 0.000 claims abstract description 5
- 238000000034 method Methods 0.000 claims description 12
- 239000007788 liquid Substances 0.000 claims description 8
- 239000002131 composite material Substances 0.000 claims description 7
- 238000010030 laminating Methods 0.000 claims description 3
- 238000004080 punching Methods 0.000 claims description 3
- 230000007306 turnover Effects 0.000 claims description 2
- 239000010720 hydraulic oil Substances 0.000 abstract 1
- 238000005096 rolling process Methods 0.000 abstract 1
- 238000000465 moulding Methods 0.000 description 10
- 239000000463 material Substances 0.000 description 8
- 230000008569 process Effects 0.000 description 5
- 230000004044 response Effects 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000010068 moulding (rubber) Methods 0.000 description 1
- 238000009828 non-uniform distribution Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/10—Die sets; Pillar guides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
- B21D22/02—Stamping using rigid devices or tools
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
- B21D22/10—Stamping using yieldable or resilient pads
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/01—Selection of materials
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
- Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
Abstract
The invention relates to a die. The die comprises an upper die holder and a lower die holder which are oppositely arranged. A male die is arranged on the upper die holder, and a female die is arranged on the lower die holder; and a pressing plate for pressing a side of a stamped forming part is arranged on the female die. The die is characterized in that a pressure increasing cavity for being connected with an external hydraulic oil input is formed in the male die, and the female die comprises a female die plate and a surrounding plate connected with the lower die holder and the female die plate; a forming cavity is formed by the lower die holder, the female die plate and the surrounding plate; a forming hole for allowing the male die to enter in and go out of the forming cavity is formed in the female die plate, and a 0.5 mm steel ball layer and a rubber layer are arranged in the forming cavity; the male die and one side face of the stamped forming part are tightly attached; the 0.5 mm steel ball layer tightly wraps the other side face of the stamped forming part, and 0.5 mm steel balls are arranged between the stamped forming part and the rubber layer in a rolling manner; and the position between the inner side wall of the forming cavity and the 0.5 mm steel ball layer is filled with the rubber layer, and an ejector rod for ejecting the stamped forming part is arranged on the lower die holder.
Description
Technical field
The present invention relates to a kind of mould, belong to metal stamping techniques field.
Background technology
Punch process in machining occupies an important position in the processing industry of national economy.The application of sheet metal component is extremely extensive, and be deep into manufacturing various aspects, sheet material forming realizes mainly through diel.Adopt Sheet Metal Forming Technology, have that precision is high, efficiency is high, quality is good, cost-saving, save the series of advantages such as material and the energy.
Use rubber to replace punch (or die), only need the die (or punch) of a rigidity, simplify mould structure, reduce the expense of mould.Meanwhile, there is not mobility in rubber, do not need to consider the sealing problem in hydroforming, easy to operate; And rubber can some complex-shaped parts of one-shot forming, such as: the part etc. of non-symmetrical part, wedged bottom part, band Local Convex concave shape; Further, rubber molding also has the advantage of response fast.But find during applicant uses, use rubber to replace punch (or die), because rubber is a continuous print elastomer, therefore paste mould when complex-shaped part forming poor, especially pastes mould difference at small round corner position and seem particularly outstanding.
Meanwhile, applicant finds, in stamping, occurring to effectively reduce forming defects, improving drip molding surface quality, suitable pressure medium must be applied in forming process to suppress the thinning of plate, reduce the stress of critical section, improve forming limit, make drip molding wall thickness evenly.
Further, applicant finds, steel ball has the advantages that to transmit pressure in non-uniform Distribution.In forming process, the descending steel ball that forces of punch moves to surrounding, and steel ball, at drip molding surface scrolls, changes the stress of material, improves the forming quality of drip molding.Therefore, by regulating the distribution of forming parameters and then adjustment pressure, material can be out of shape under best stress condition, prevent the easy weakened section of material from breaking prematurely in forming process, give full play to the plastic deformation performance of material, improve the forming limit of material.
Meanwhile, applicant finds, by the supercharging to punch, on the basis of existing forcing press, further can improve the pressure to profiled member, simultaneously, on the basis stamping to profiled member first time, secondary pressurized is being carried out to profiled member, effectively can prevent the resilience of profiled member.
Summary of the invention
The technical problem to be solved in the present invention is, not enough for prior art, proposes a kind of to stamping pressure fast response time and the good supercharging composite die of drip molding total quality.
The present invention is the technical scheme solving the problems of the technologies described above proposition: a kind of supercharging composite die, comprise the upper bolster and die shoe that are oppositely arranged, described upper bolster is provided with punch, described die shoe is provided with die, described die is provided with the pressing plate for striking out shaped piece flanging, the booster cavity for connecting the input of outer liquid force feed is shaped with in described punch, described die comprises concave template and the coaming plate being connected die shoe and concave template, described die shoe, concave template and coaming plate are formed into die cavity, described concave template is shaped with the forming hole for punch turnover forming cavity, 0.5mm steel ball layer and rubber layer is provided with in described forming cavity, described punch fits tightly with the side striking out shaped piece, described 0.5mm steel ball layer closely wraps up the another side that strikes out shaped piece and 0.5mm steel ball rolls to be located at and strikes out between shaped piece and rubber layer, described rubber layer is filled between forming cavity madial wall and 0.5mm steel ball layer.
The present invention adopts the beneficial effect of technique scheme to be: 1) because 0.5mm steel ball layer closely wraps up the another side that strikes out shaped piece and 0.5mm steel ball rolls to be located at strikes out between shaped piece and rubber layer, rubber layer is filled between forming cavity madial wall and 0.5mm steel ball layer, by rubber layer, to stamping pressure fast response time.On the basis to stamping pressure fast response time, by having 0.5mm steel ball layer, by the steel ball of 0.5mm size, in forming process, the descending steel ball that forces of punch moves to surrounding, steel ball, at drip molding surface scrolls, changes the stress of material, improves the forming quality striking out shaped piece.Meanwhile, by the interaction between 0.5mm steel ball layer and rubber layer, extrude darker in rubber layer at the stressed local 0.5mm steel ball layer greatly of drip molding, achieve stressed even, reduce the stress of critical section, improve forming limit, make drip molding wall thickness evenly; 2) owing to being shaped with the booster cavity for connecting the input of outer liquid force feed in punch, by outside injection liquid force feed, but realizing the secondary booster to punch forming part, better improve the quality striking out shaped piece.
The improvement of technique scheme is: described rubber layer is the minimum two-layer rubber layer set gradually up and down.
Because rubber layer is the minimum two-layer rubber layer set gradually up and down, during actual production, according to the different pressures needs of drip molding, every layer of rubber layer can be set to different pressures, better can improve the forming quality of drip molding.
The improvement of technique scheme is: described die shoe is provided with the push rod ejected for striking out shaped piece.
The improvement of technique scheme is: be provided with top board in described forming cavity, and described top board is between die shoe and rubber layer, and one end of described top board and push rod is fixed.
The method of work of described supercharging composite die, comprising: after punch is to punch forming part punching press laminating, then by the booster cavity in outer liquid force feed input punch, further extrudes punch forming part.
Accompanying drawing explanation
Fig. 1 is the structural representation of embodiment of the present invention supercharging composite die.
Detailed description of the invention
The supercharging composite die of the present embodiment, as shown in Figure 1, comprises the upper bolster 1 and die shoe 2 that are oppositely arranged.Upper bolster 1 is provided with punch 3, and die shoe 2 is provided with die 4.Die 4 is provided with the pressing plate 6 for striking out shaped piece 5 flanging.
The booster cavity 3-1 for connecting the input of outer liquid force feed is shaped with in punch 3.Die 4 comprises concave template 4-1 and is connected the coaming plate 4-2 of die shoe 2 with concave template 4-1.Die shoe 2, concave template 4-1 and coaming plate 4-2 are formed into die cavity.Concave template 4-1 is shaped with the forming hole passing in and out forming cavity for punch 3.0.5mm steel ball layer 4-3 and rubber layer 4-4 is provided with in forming cavity.
Punch 3 fits tightly with the side striking out shaped piece 5, and 0.5mm steel ball layer 4-3 closely wraps up the another side that strikes out shaped piece 5 and 0.5mm steel ball rolls to be located at and strikes out between shaped piece 5 and rubber layer 4-4.Rubber layer 4-4 is filled between forming cavity madial wall and 0.5mm steel ball layer 4-3.
The rubber layer 4-4 of the present embodiment is the minimum two-layer rubber layer set gradually up and down.
The die shoe 2 of the present embodiment is provided with the push rod 7 ejected for striking out shaped piece 5.
Top board 8 is provided with in the forming cavity of the present embodiment.Top board 8 is between die shoe 2 and rubber layer 4-4, and top board 8 is fixed with one end of push rod 7.
During use, after punch 3 pairs of punch forming part 5 punching press laminatings, then by the booster cavity 3-1 in outer liquid force feed input punch 3, punch forming part 5 is further extruded.
The present invention is not limited to above-described embodiment.All employings are equal to the technical scheme of replacing and being formed, and all drop on the protection domain of application claims.
Claims (2)
1. a supercharging composite die, comprise the upper bolster and die shoe that are oppositely arranged, described upper bolster is provided with punch, described die shoe is provided with die, described die is provided with the pressing plate for striking out shaped piece flanging, it is characterized in that: in described punch, be shaped with the booster cavity for connecting the input of outer liquid force feed, described die comprises concave template and the coaming plate being connected die shoe and concave template, described die shoe, concave template and coaming plate are formed into die cavity, described concave template is shaped with the forming hole for punch turnover forming cavity, 0.5mm steel ball layer and rubber layer is provided with in described forming cavity, described punch fits tightly with the side striking out shaped piece, described 0.5mm steel ball layer closely wraps up the another side that strikes out shaped piece and 0.5mm steel ball rolls to be located at and strikes out between shaped piece and rubber layer, described rubber layer is filled between forming cavity madial wall and 0.5mm steel ball layer, described die shoe is provided with the push rod ejected for striking out shaped piece.
2. a method of work for supercharging composite die as claimed in claim 1, is characterized in that comprising: after punch is to punch forming part punching press laminating, then by the booster cavity in outer liquid force feed input punch, further extrudes punch forming part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510144509.8A CN104815903B (en) | 2013-06-28 | 2013-06-28 | A kind of mould |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310266310.3A CN103317026B (en) | 2013-06-28 | 2013-06-28 | Supercharged composite mold |
| CN201510144509.8A CN104815903B (en) | 2013-06-28 | 2013-06-28 | A kind of mould |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310266310.3A Division CN103317026B (en) | 2013-06-28 | 2013-06-28 | Supercharged composite mold |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104815903A true CN104815903A (en) | 2015-08-05 |
| CN104815903B CN104815903B (en) | 2016-08-24 |
Family
ID=49186235
Family Applications (9)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510147882.9A Expired - Fee Related CN104785600B (en) | 2013-06-28 | 2013-06-28 | Die work method |
| CN201510144510.0A Expired - Fee Related CN104815904B (en) | 2013-06-28 | 2013-06-28 | A kind of method of work of supercharging composite die |
| CN201510143802.2A Expired - Fee Related CN104815901B (en) | 2013-06-28 | 2013-06-28 | Pressurizing composite die |
| CN201310266310.3A Expired - Fee Related CN103317026B (en) | 2013-06-28 | 2013-06-28 | Supercharged composite mold |
| CN201510144509.8A Expired - Fee Related CN104815903B (en) | 2013-06-28 | 2013-06-28 | A kind of mould |
| CN201510144068.1A Expired - Fee Related CN104815902B (en) | 2013-06-28 | 2013-06-28 | A kind of method of work of supercharging composite die |
| CN201510145301.8A Active CN104785630B (en) | 2013-06-28 | 2013-06-28 | Supercharging composite die and method of work thereof |
| CN201510145307.5A Active CN104785631B (en) | 2013-06-28 | 2013-06-28 | Working method of pressurization die |
| CN201510143863.9A Active CN104801603B (en) | 2013-06-28 | 2013-06-28 | Working method of pressurization mold |
Family Applications Before (4)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510147882.9A Expired - Fee Related CN104785600B (en) | 2013-06-28 | 2013-06-28 | Die work method |
| CN201510144510.0A Expired - Fee Related CN104815904B (en) | 2013-06-28 | 2013-06-28 | A kind of method of work of supercharging composite die |
| CN201510143802.2A Expired - Fee Related CN104815901B (en) | 2013-06-28 | 2013-06-28 | Pressurizing composite die |
| CN201310266310.3A Expired - Fee Related CN103317026B (en) | 2013-06-28 | 2013-06-28 | Supercharged composite mold |
Family Applications After (4)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510144068.1A Expired - Fee Related CN104815902B (en) | 2013-06-28 | 2013-06-28 | A kind of method of work of supercharging composite die |
| CN201510145301.8A Active CN104785630B (en) | 2013-06-28 | 2013-06-28 | Supercharging composite die and method of work thereof |
| CN201510145307.5A Active CN104785631B (en) | 2013-06-28 | 2013-06-28 | Working method of pressurization die |
| CN201510143863.9A Active CN104801603B (en) | 2013-06-28 | 2013-06-28 | Working method of pressurization mold |
Country Status (1)
| Country | Link |
|---|---|
| CN (9) | CN104785600B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105665534A (en) * | 2015-12-09 | 2016-06-15 | 王蕾 | a deep drawing die |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104785600B (en) * | 2013-06-28 | 2017-02-08 | 山东建筑大学 | Die work method |
| CN107159765A (en) * | 2017-08-01 | 2017-09-15 | 安徽机电职业技术学院 | A kind of novel punching machinery |
| CN109365592B (en) * | 2018-10-25 | 2023-11-17 | 福建振丰矿物新材料有限公司 | A colloid hydraulic molding device and a method for molding panels using the same |
| CN116603912B (en) * | 2023-05-17 | 2025-08-19 | 陕西科技大学 | Forming method of small-curvature fillet radius cylindrical part |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000117336A (en) * | 1998-10-15 | 2000-04-25 | Hitachi Ltd | Rubber molding equipment |
| CN201693081U (en) * | 2010-06-30 | 2011-01-05 | 重庆理工大学 | A Flexible Forming Die for Sheet Metal with Non-uniform Back Pressure |
| CN201693080U (en) * | 2010-06-30 | 2011-01-05 | 重庆理工大学 | Sheet metal forming die with non-uniform back pressure |
| CN201711428U (en) * | 2010-06-30 | 2011-01-19 | 重庆理工大学 | Sheet-forming die with movable female die for flexible bottom die |
| CN203409090U (en) * | 2013-06-28 | 2014-01-29 | 苏州唐氏机械制造有限公司 | Boosting composite die |
Family Cites Families (18)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1003843B (en) * | 1988-01-21 | 1989-04-12 | 姚珍汉 | Fluid Particle Forming Method of Metal Sheet |
| CN2142763Y (en) * | 1992-12-23 | 1993-09-29 | 王淑义 | Drawing die without mould |
| JPH06304669A (en) * | 1993-04-21 | 1994-11-01 | Kamakura Sangyo Kk | Method and device for embossing metal panel |
| RU2155113C2 (en) * | 1998-08-03 | 2000-08-27 | Комсомольское-на-Амуре авиационное производственное объединение | Apparatus for making hollow articles |
| RU2194590C2 (en) * | 2000-12-04 | 2002-12-20 | Самарский государственный аэрокосмический университет им. С.П. Королева | Apparatus for drawing and trimming parts |
| CN1363434A (en) * | 2001-11-21 | 2002-08-14 | 燕山大学 | Expansion shaping technology using soild particles as pressure transfer medium for metallic pipe |
| WO2005053875A1 (en) * | 2003-12-04 | 2005-06-16 | Bishop Innovation Limited | Steering rack manufacture |
| CN100376340C (en) * | 2005-01-24 | 2008-03-26 | 燕山大学 | Sheet Metal Half-Mold Forming Process |
| CN2900010Y (en) * | 2006-06-01 | 2007-05-16 | 上海交通大学 | Metal plate no-mould forming practical device |
| JP5028576B2 (en) * | 2006-11-17 | 2012-09-19 | 新潟県 | Magnesium alloy sheet plastic working method |
| CN100515598C (en) * | 2007-12-18 | 2009-07-22 | 西安交通大学 | Fold lattice core forming mould |
| CN101306448A (en) * | 2008-05-29 | 2008-11-19 | 燕山大学 | Rigid particle or compressible powder half-mold forming process of sheet metal |
| JP2010269366A (en) * | 2009-05-25 | 2010-12-02 | Hitachi Ltd | Elastic body molding apparatus and method |
| CN101837409A (en) * | 2010-06-30 | 2010-09-22 | 重庆理工大学 | Rigid and flexible combined forming die based on solid particle medium |
| CN201760499U (en) * | 2010-06-30 | 2011-03-16 | 重庆理工大学 | Backward deep drawing die with outer edge subject to back pressure of forward pressure belt |
| CN202425720U (en) * | 2012-01-17 | 2012-09-12 | 东莞市厚街增洋机电经营部 | A kind of universal deformable mold for shoe-making bottom pressing |
| CN102615484B (en) * | 2012-04-25 | 2014-10-29 | 湖南大学 | Convex-hull type blulletproof helmet forming method |
| CN104785600B (en) * | 2013-06-28 | 2017-02-08 | 山东建筑大学 | Die work method |
-
2013
- 2013-06-28 CN CN201510147882.9A patent/CN104785600B/en not_active Expired - Fee Related
- 2013-06-28 CN CN201510144510.0A patent/CN104815904B/en not_active Expired - Fee Related
- 2013-06-28 CN CN201510143802.2A patent/CN104815901B/en not_active Expired - Fee Related
- 2013-06-28 CN CN201310266310.3A patent/CN103317026B/en not_active Expired - Fee Related
- 2013-06-28 CN CN201510144509.8A patent/CN104815903B/en not_active Expired - Fee Related
- 2013-06-28 CN CN201510144068.1A patent/CN104815902B/en not_active Expired - Fee Related
- 2013-06-28 CN CN201510145301.8A patent/CN104785630B/en active Active
- 2013-06-28 CN CN201510145307.5A patent/CN104785631B/en active Active
- 2013-06-28 CN CN201510143863.9A patent/CN104801603B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000117336A (en) * | 1998-10-15 | 2000-04-25 | Hitachi Ltd | Rubber molding equipment |
| CN201693081U (en) * | 2010-06-30 | 2011-01-05 | 重庆理工大学 | A Flexible Forming Die for Sheet Metal with Non-uniform Back Pressure |
| CN201693080U (en) * | 2010-06-30 | 2011-01-05 | 重庆理工大学 | Sheet metal forming die with non-uniform back pressure |
| CN201711428U (en) * | 2010-06-30 | 2011-01-19 | 重庆理工大学 | Sheet-forming die with movable female die for flexible bottom die |
| CN203409090U (en) * | 2013-06-28 | 2014-01-29 | 苏州唐氏机械制造有限公司 | Boosting composite die |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105665534A (en) * | 2015-12-09 | 2016-06-15 | 王蕾 | a deep drawing die |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104785630B (en) | 2016-09-21 |
| CN104815901B (en) | 2016-12-28 |
| CN103317026A (en) | 2013-09-25 |
| CN104801603A (en) | 2015-07-29 |
| CN104815901A (en) | 2015-08-05 |
| CN104785631A (en) | 2015-07-22 |
| CN104785631B (en) | 2017-03-22 |
| CN104785630A (en) | 2015-07-22 |
| CN104815904B (en) | 2016-08-24 |
| CN104815902B (en) | 2016-09-21 |
| CN104785600A (en) | 2015-07-22 |
| CN104815903B (en) | 2016-08-24 |
| CN104801603B (en) | 2017-01-18 |
| CN103317026B (en) | 2015-04-29 |
| CN104785600B (en) | 2017-02-08 |
| CN104815904A (en) | 2015-08-05 |
| CN104815902A (en) | 2015-08-05 |
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Legal Events
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| C06 | Publication | ||
| PB01 | Publication | ||
| EXSB | Decision made by sipo to initiate substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
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