CN106270103B - A kind of internal high pressure forming die and its application method - Google Patents
A kind of internal high pressure forming die and its application method Download PDFInfo
- Publication number
- CN106270103B CN106270103B CN201610871487.XA CN201610871487A CN106270103B CN 106270103 B CN106270103 B CN 106270103B CN 201610871487 A CN201610871487 A CN 201610871487A CN 106270103 B CN106270103 B CN 106270103B
- Authority
- CN
- China
- Prior art keywords
- template
- workpiece
- group
- cavity
- slide
- 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.)
- Active
Links
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
- B21D26/00—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces
- B21D26/02—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces by applying fluid pressure
- B21D26/033—Deforming tubular bodies
- B21D26/047—Mould construction
-
- 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
- B21D26/00—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces
- B21D26/02—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces by applying fluid pressure
- B21D26/033—Deforming tubular bodies
Landscapes
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
- Presses And Accessory Devices Thereof (AREA)
Abstract
A kind of internal high pressure forming die disclosed by the invention, including die holder, cover half, dynamic model, cope plate group, lower template group, guide rail, slide, hydraulic drive mechanism and hydraulic punching head, cover half and guide rail are fixedly installed on die holder, folding is set to above cover half dynamic model up and down, cope plate group is set on by guide rod string in the die cavity of dynamic model, lower template group is set on by guide rod string in the die cavity of cover half, it is equipped between cope plate group and lower template group for the cavity of high-pressure molding in workpiece, slide is slideably positioned on guide rail, slide slides to drive the template of cope plate group and lower template group along guide rod displacement along guide rail, hydraulic drive mechanism and hydraulic punching head are set on slide, hydraulic drive mechanism driving hydraulic punching head is stretched into cavity to be coordinated with workpiece end.Workpiece bulging and the processing step of shaping can be completed in stroke of hydraulic punching head of the present invention, and simple processing, product quality is more preferable, and application method is simple, control easy to operation.
Description
Technical field
The present invention relates to technical field of mechanical processing, more particularly to a kind of internal high pressure forming die and its application method.
Background technology
Automobile exhaust muffler is for reducing one of critical component of automobile engine to exhaust noise, mainly passes through drop
Noise is eliminated in low, attenuation pressure at expulsion pulsation.Automobile exhaust muffler includes noise reduction pipe component as shown in Figure 1, this disappears
Sound tube component is reducing hollow pipe fitting, and key structural feature is that portion is equipped with hollow noise reduction convex closure in the tube, the one of pipe fitting
End is equipped with nozzle convex ribs.
In prior art, the noise reduction convex closure part of above-mentioned pipe fitting is generally processed using interior high-pressure molding mode, interior high pressure into
Type also makes hydro-forming or fluid power be molded, and is that one kind uses fluid as shaping medium, is flowed by pressure in control and material
To reach the material forming process of molding hollow part purpose.Existing internal high pressure forming die is lacked due to its own structure design
It falls into, fold and other issues occur in the pipe thickness unevenness or surface for leading to the noise reduction convex closure position of pipe fitting, after shaping also
Trimming is needed to carry out shaping processing to it, manufacturing procedure is numerous and diverse, it is therefore necessary to research and develop a kind of interior high-pressure molding quality more
Good, manufacturing procedure simplicity internal high pressure forming die.Another problem is that existing internal high pressure forming die can not achieve to noise reduction
Convex closure and nozzle convex ribs are molded simultaneously, and generally requiring interior high pressure twice could be molded, thus processing technology is complicated, is not easy to operate
Control.
Invention content
In view of the defects and deficiencies of the prior art, the present invention intends to provide a kind of internal high pressure forming die and its make
With method, workpiece bulging and the processing step of shaping can be completed in stroke of hydraulic punching head, and simple processing, product quality is more
Good, application method is simple, control easy to operation.
To achieve the above object, the present invention uses following technical scheme：
A kind of internal high pressure forming die, including die holder, cover half, dynamic model, cope plate group, lower template group, guide rail, slide, liquid
Pressure driving mechanism and hydraulic punching head, cover half and guide rail are fixedly installed on die holder, and folding is set to above cover half dynamic model up and down, on
Template group is set on by guide rod string in the die cavity of dynamic model, and lower template group is set on by guide rod string in the die cavity of cover half, upper mold
It is equipped between plate group and lower template group for the cavity of high-pressure molding in workpiece, slide is slideably positioned on guide rail, and slide edge is led
To drive the template of cope plate group and lower template group, along guide rod displacement, hydraulic drive mechanism and hydraulic punching head are set to for rail slip
On slide, hydraulic drive mechanism driving hydraulic punching head is stretched into cavity to be coordinated with workpiece end.
Wherein, cope plate group and lower template group respectively include the first template, the second template and third template, the first template
The first cavity of high-pressure molding in the noise reduction convex closure position for workpiece, the second template and third mould are equipped between the second template
The second cavity of high-pressure molding in the nozzle convex ribs position for workpiece is equipped between plate.
Further, the first template side of dynamic model and cover half is equipped with side plate, and the first template is fixedly connected with the side plate, third
It is fixedly connected between template and slide by connector sleeve.
Further, reset bullet is equipped between the first template and the second template and between the second template and third template
Spring.Slide is equipped with push plate, and push plate is equipped with vertical guide runner, and cope plate group is connected with the connection coordinated with the vertical guide runner
Block.One end that the cavity is located at side plate is additionally provided with the hydraulic punching head stretched into the cavity with workpiece end cooperation.
Wherein, hydraulic drive mechanism includes hydraulic cylinder, link mechanism and slider guide, and hydraulic punching head is fixedly connected on slider guide
On, slider guide limiting is slideably positioned on slide, and hydraulic cylinder is fixedly installed on slide, and the piston rod of hydraulic cylinder passes through connecting rod machine
Structure driving slider guide slides on slide.
A kind of application method of internal high pressure forming die, including following operating procedure：
S1, workpiece is packed into the cavity between cope plate group and lower template group, is closed dynamic model；
S2, hydraulic drive mechanism driving hydraulic punching head are stretched into cavity and are closely offseted with workpiece end, so that inside workpiece
Form closed cavity；
S3, highly pressurised liquid is injected to the closed cavity of inside workpiece by hydraulic punching head, so that workpiece is in the cavity
Bulging；
S4, in the Bulging Process of step S3, pass through driving device and drive slide upward template group/lower template group sidesway
It is dynamic, so that the template of cope plate group and lower template group is carried out along the synchronous extrusion and displacement of guide rod for workpiece in Bulging Process
Squeeze feed supplement；
After the template of S5, cope plate group and lower template group are pressed into place, added by hydraulic punching head to the liquid of inside workpiece
Pressure, so that workpiece shaping in the cavity between cope plate group and lower template group；
S6, hydraulic drive mechanism driving hydraulic punching head exit cavity, and slide is driven to far from cope plate by driving device
The side movement of group/lower template group, opens dynamic model, takes out workpiece.
Beneficial effects of the present invention are：
The present invention installs cope plate group and lower template group respectively in dynamic model and cover half, between cope plate group and lower template group
Equipped with the cavity for high-pressure molding in workpiece, during processing, first workpiece is packed into the cavity, hydraulic drive mechanism driving hydraulic pressure
Punch is stretched into cavity and is closely offseted with workpiece end, so that inside workpiece formation closed cavity, then by hydraulic punching head to work
Injection highly pressurised liquid, workpiece bulging in the cavity by the pressure of internal high pressure liquid, in workpiece Bulging Process inside part
In, the upward template group of slide/lower template group side is driven to move by driving device, so that the template of cope plate group and lower template group
Extrusion and displacement is synchronized along guide rod, by the extrusion and displacement of template to carry out feed supplement to the bulging position of workpiece, then passes through workpiece
The control of internal liquid pressure keeps wall thickness in workpiece Bulging Process consistent, then when cope plate group and the template of lower template group
After being pressed into place, i.e., the shape of the cavity and finished workpart between cope plate group and lower template group exactly matches, and passes through liquid
Liquid pressing of the punch to inside workpiece is pressed, so that workpiece shaping in the cavity between cope plate group and lower template group,
The reforming process can eliminate the fold of workpiece surface appearance, ensure workpiece quality, most retreat mould and take out workpiece.In this high pressure into
Workpiece bulging and the processing step of shaping can be completed in stroke of hydraulic punching head of pattern tool, and simple processing, product quality is more
It is good；And its application method is simple, control easy to operation.
Description of the drawings
Fig. 1 is the structure diagram of automobile silencing pipe；
Fig. 2 is the assembling structure schematic diagram of the present invention；
Fig. 3 is the overlooking the structure diagram of the present invention；
In figure：1st, die holder；2nd, cover half；3rd, dynamic model；4th, guide rail；5th, slide；6th, hydraulic drive mechanism；7th, hydraulic punching head；8、
Guide rod；9th, side plate；10th, connector sleeve；11st, the first template；12nd, the second template；13rd, third template；61st, slider guide；62nd, connecting rod
Mechanism；63rd, hydraulic cylinder.
Specific embodiment
The present invention is further illustrated below in conjunction with the accompanying drawings.
A kind of internal high pressure forming die as shown in Figure 1 to Figure 3, including die holder 1, cover half 2, dynamic model 3, cope plate group, under
Template group, guide rail 4, slide 5, hydraulic drive mechanism 6 and hydraulic punching head 7, cover half 2 and guide rail 4 are fixedly installed on die holder 1, are moved
Mould about 3 folding be set to the top of cover half 2, cope plate group by the string of guide rod 8 in the die cavity of dynamic model 3, lead to by lower template group
The string of guide rod 8 is crossed in the die cavity of cover half 2, is equipped between cope plate group and lower template group for the type of high-pressure molding in workpiece
Chamber, slide 5 are slideably positioned on guide rail 4, and slide 5 slides that the template of cope plate group and lower template group edge is driven to lead along guide rail 4
To 8 displacement of bar, hydraulic drive mechanism 6 and hydraulic punching head 7 are set on slide 5, and hydraulic drive mechanism 6 drives hydraulic punching head 7 to stretch
Enter in cavity and coordinate with workpiece end.
During processing, first workpiece is packed into the cavity, the driving hydraulic punching head 7 of hydraulic drive mechanism 6 stretches into cavity and work
Part end closely offsets, so that inside workpiece forms closed cavity, then injects high pressure liquid to inside workpiece by hydraulic punching head 7
Body, workpiece bulging in the cavity by the pressure of internal high pressure liquid, in workpiece Bulging Process, is driven by driving device
5 upward template group of dynamic slide/lower template group side movement, so that cope plate group is synchronous crowded along guide rod 8 with the template of lower template group
Displacement is pressed, by the extrusion and displacement of template to carry out feed supplement to the bulging position of workpiece, then passes through inside workpiece fluid pressure
Control, keep workpiece Bulging Process in wall thickness it is consistent, then after the template of cope plate group and lower template group is pressed into place, i.e., on
The shape of the cavity and finished workpart between template group and lower template group exactly matches, by hydraulic punching head 7 into workpiece
The liquid pressing in portion, so that workpiece shaping in the cavity between cope plate group and lower template group, which can be with
The fold that workpiece surface occurs is eliminated, ensures workpiece quality, mould is most retreated and takes out workpiece.The hydraulic punch of this internal high pressure forming die
Workpiece bulging can be completed for first 7 strokes and the processing step of shaping, simple processing, product quality are more preferable；And it is used
Method is simple, control easy to operation.
Wherein, cope plate group and lower template group respectively include the first template 11, the second template 12 and third template 13, the
The first cavity of high-pressure molding in the noise reduction convex closure position for workpiece is equipped between one template 11 and the second template 12, when first
When 11 and second template 12 of template fits closely, the first cavity is the shape of workpiece noise reduction convex closure, the second template 12 and third
The second cavity of high-pressure molding in the nozzle convex ribs position for workpiece is equipped between template 13, when the second template 12 and third mould
When plate 13 fits closely, the second cavity is the shape of workpiece nozzle convex ribs.Specifically, the first template 11 of dynamic model 3 and cover half 2
Side is equipped with side plate 9, and the first template 11 is fixedly connected with the side plate 9, and the first template 11 is fixed, third template 13 and slide 5
Between be fixedly connected by connector sleeve 10, third template 13 is moved with connector sleeve 10, and the second template 12 is on guide rod 8 according to it
The stressing conditions dynamic displacement of both sides.When slide 5 moves, third template 13 is squeezed by connector sleeve 10, third template 13 pushes away again
The second template 12 is moved to the 11 side displacement of the first template.In the present embodiment, one end that the cavity is located at side plate 9 is additionally provided with and stretches into this
With the hydraulic punching head 7 of workpiece end cooperation in cavity, workpiece both ends are all sealed and are positioned using hydraulic punching head 7.
Further, it is all provided between the first template 11 and the second template 12 and between the second template 12 and third template 13
There is resetting spring, resetting spring is used between template be automatically separated.Slide 5 is equipped with push plate, and push plate is equipped with vertical guide runner, on
Template group is connected with the link block coordinated with the vertical guide runner, and the vertical spacing cooperation of link block and guide runner can make upper mold
It is precisely aligned always with lower template group during plate group is moved up and down with dynamic model 3 and in extrusion process, so as to ensure upper mold
Plate group synchronous extruding under the drive of connector sleeve 10 with lower template group, to ensure workpiece shaping quality.
Wherein, hydraulic drive mechanism 6 includes hydraulic cylinder 63, link mechanism 62 and slider guide 61, and hydraulic punching head 7 is fixedly connected
In on slider guide 61, the limiting of slider guide 61 is slideably positioned on slide 5, and hydraulic cylinder 63 is fixedly installed on slide 5, hydraulic cylinder 63
Piston rod by link mechanism 62 drive slider guide 61 slid on slide 5.Position-limiting action to sliding block in slide 5 glides
Dynamic and consistent with the glide direction of 7 telescopic direction of hydraulic punching head and slide 5 to the glide direction of sliding block, link mechanism 62 is
Connecting rod, piston rod of the connecting rod two end respectively with slider guide 61 and hydraulic cylinder 63 are hinged, the piston rod telescopic direction of hydraulic cylinder 63 with
The glide direction of slider guide 61 is vertical, and control workpiece bulging can be more advantageous to using the hydraulic drive mechanism 6 of the link mechanism 62
Decrement in the process ensures the uniform feed supplement of workpiece, improves workpiece quality.
The application method of above-mentioned internal high pressure forming die, including following operating procedure：
S1, workpiece is packed into the cavity between cope plate group and lower template group, is closed dynamic model 3；
S2, hydraulic drive mechanism 6 drive hydraulic punching head 7 to stretch into cavity and closely offset with workpiece end, so that in workpiece
Portion forms closed cavity；
S3, highly pressurised liquid is injected to the closed cavity of inside workpiece by hydraulic punching head 7, so that workpiece is in the cavity
Bulging；
S4, in the Bulging Process of step S3, pass through driving device and drive slide 5 upward template group/lower template group sidesway
It is dynamic so that cope plate group with the template of lower template group along 8 synchronous extrusion and displacement of guide rod, carried out in Bulging Process for workpiece
Squeeze feed supplement；
After the template of S5, cope plate group and lower template group are pressed into place, added by hydraulic punching head 7 to the liquid of inside workpiece
Pressure, so that workpiece shaping in the cavity between cope plate group and lower template group；
S6, hydraulic drive mechanism 6 drive hydraulic punching head 7 to exit cavity, and slide 5 is driven to far from upper mold by driving device
The side movement of plate group/lower template group, opens dynamic model 3, takes out workpiece.
The above is only the better embodiment of the present invention, therefore all constructions according to described in present patent application range,
The equivalent change or modification that feature and principle are done, is included in the range of present patent application.
Claims (8)
1. a kind of internal high pressure forming die, it is characterised in that：Including die holder, cover half, dynamic model, cope plate group, lower template group, lead
Rail, slide, hydraulic drive mechanism and hydraulic punching head, cover half and guide rail are fixedly installed on die holder, and folding is set to dynamic model up and down
Above cover half, cope plate group is set on by guide rod string in the die cavity of dynamic model, and lower template group is set on cover half by guide rod string
It is equipped in die cavity, between cope plate group and lower template group for the cavity of high-pressure molding in workpiece, slide is slideably positioned in guide rail
On, slide slides to drive the template of cope plate group and lower template group along guide rod displacement, hydraulic drive mechanism and liquid along guide rail
Pressure punch is set on slide, and hydraulic drive mechanism driving hydraulic punching head is stretched into cavity to be coordinated with workpiece end.
2. a kind of internal high pressure forming die according to claim 1, it is characterised in that：Cope plate group and lower template group are divided equally
Not Bao Kuo the first template, the second template and third template, between the first template and the second template be equipped with for workpiece noise reduction it is convex
The first cavity of high-pressure molding in position is wrapped, is equipped in the nozzle convex ribs position for workpiece between the second template and third template
Second cavity of high-pressure molding.
3. a kind of internal high pressure forming die according to claim 2, it is characterised in that：First template side of dynamic model and cover half
Equipped with side plate, the first template is fixedly connected with the side plate, is fixedly connected between third template and slide by connector sleeve.
4. a kind of internal high pressure forming die according to claim 3, it is characterised in that：Between first template and the second template
And second be equipped with resetting spring between template and third template.
5. a kind of internal high pressure forming die according to claim 3, it is characterised in that：Slide is equipped with push plate, in push plate
Equipped with vertical guide runner, cope plate group is connected with the link block coordinated with the vertical guide runner.
6. a kind of internal high pressure forming die according to claim 3, it is characterised in that：The cavity is located at one end of side plate
It is additionally provided with the hydraulic punching head stretched into the cavity with workpiece end cooperation.
7. according to a kind of internal high pressure forming die described in claim 1-6 any one, it is characterised in that：Hydraulic drive mechanism
Including hydraulic cylinder, link mechanism and slider guide, hydraulic punching head is fixedly connected on slider guide, and slider guide limiting is slideably positioned in cunning
On seat, hydraulic cylinder is fixedly installed on slide, and the piston rod of hydraulic cylinder drives slider guide to be slid on slide by link mechanism.
8. a kind of application method of internal high pressure forming die as described in claim 1, which is characterized in that including operating step as follows
Suddenly：
S1, workpiece is packed into the cavity between cope plate group and lower template group, is closed dynamic model；
S2, hydraulic drive mechanism driving hydraulic punching head are stretched into cavity and are closely offseted with workpiece end, so that inside workpiece is formed
Closed cavity；
S3, highly pressurised liquid is injected to the closed cavity of inside workpiece by hydraulic punching head, so that workpiece bulging in the cavity；
S4, in the Bulging Process of step S3, slide upward template group/lower template group side is driven to move by driving device, with
The template of cope plate group and lower template group is made to carry out extruding benefit in Bulging Process along the synchronous extrusion and displacement of guide rod for workpiece
Material；
After the template of S5, cope plate group and lower template group are pressed into place, by hydraulic punching head to the liquid pressing of inside workpiece, with
Make workpiece shaping in the cavity between cope plate group and lower template group；
S6, hydraulic drive mechanism driving hydraulic punching head exit cavity, by driving device drive slide to far from cope plate group/under
The side movement of template group, opens dynamic model, takes out workpiece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610871487.XA CN106270103B (en) | 2016-09-30 | 2016-09-30 | A kind of internal high pressure forming die and its application method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610871487.XA CN106270103B (en) | 2016-09-30 | 2016-09-30 | A kind of internal high pressure forming die and its application method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106270103A CN106270103A (en) | 2017-01-04 |
| CN106270103B true CN106270103B (en) | 2018-06-26 |
Family
ID=57715944
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610871487.XA Active CN106270103B (en) | 2016-09-30 | 2016-09-30 | A kind of internal high pressure forming die and its application method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106270103B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110883228A (en) * | 2019-12-02 | 2020-03-17 | 长春智乐机械制造有限公司 | Internal high-pressure forming die |
| CN110935779B (en) * | 2019-12-13 | 2021-05-28 | 哈尔滨工大海卓智能成形科技有限公司 | Pipe liquid-filling multidirectional extrusion forming device and method |
| CN111250636B (en) * | 2020-04-30 | 2020-07-28 | 宁波市沃瑞斯机械科技有限公司 | Fluctuation pressure regulating system for forming thread rib |
| CN111992612B (en) * | 2020-09-11 | 2022-06-14 | 北京理工大学深圳汽车研究院 | Electro-hydraulic forming device based on pipe side wall hole opening |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20050114911A (en) * | 2004-06-02 | 2005-12-07 | 기아자동차주식회사 | Hydro forming device |
| JP5182426B2 (en) * | 2010-02-04 | 2013-04-17 | 新日鐵住金株式会社 | Hydroform molding method and hydroform molding apparatus |
| CN205183540U (en) * | 2015-12-14 | 2016-04-27 | 长春近江汽车零部件有限公司 | Port shaping and integrative mould of package that expands |
| CN206104634U (en) * | 2016-09-30 | 2017-04-19 | 宁波市沃瑞斯机械科技有限公司 | Interior high -pressure forming die |
-
2016
- 2016-09-30 CN CN201610871487.XA patent/CN106270103B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20050114911A (en) * | 2004-06-02 | 2005-12-07 | 기아자동차주식회사 | Hydro forming device |
| JP5182426B2 (en) * | 2010-02-04 | 2013-04-17 | 新日鐵住金株式会社 | Hydroform molding method and hydroform molding apparatus |
| CN205183540U (en) * | 2015-12-14 | 2016-04-27 | 长春近江汽车零部件有限公司 | Port shaping and integrative mould of package that expands |
| CN206104634U (en) * | 2016-09-30 | 2017-04-19 | 宁波市沃瑞斯机械科技有限公司 | Interior high -pressure forming die |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106270103A (en) | 2017-01-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106270103B (en) | A kind of internal high pressure forming die and its application method | |
| CN103537500B (en) | Extrusion and molding method for cup-shaped part and special extrusion die | |
| CN104338818A (en) | Internal high pressure forming equipment | |
| CN105234242B (en) | Rubber pocket hydroforming equipment in one kind pipe | |
| CN106424293B (en) | A kind of hydraulic shock building mortion and manufacturing process for metal thin wall pipe | |
| CN202683721U (en) | Internal high pressure forming device | |
| CN206104634U (en) | Interior high -pressure forming die | |
| CN107897401A (en) | Press the tea pressing method of tea machine | |
| CN102764809B (en) | Hydro forming device | |
| CN114160666B (en) | Forming device for thin-wall stainless steel clamping pipe fitting | |
| CN205074431U (en) | Forming die of flange dust cover | |
| CN103521586B (en) | Stainless steel tube shaped device | |
| CN106113402B (en) | The double pier nose one-time-shaped moulds of automobile support rod | |
| CN105522095B (en) | Stamping die for backward extrusion hole drawing of parts | |
| CN211662539U (en) | Secondary compression injection molding device | |
| CN205056838U (en) | Forming die of car drive front axle flange dust cover | |
| CN209773293U (en) | Demoulding sleeve with ejection structure | |
| CN210501305U (en) | Push oil cylinder device | |
| CN110561713B (en) | Push-press oil cylinder device | |
| CN2550088Y (en) | Shape expanding machine | |
| CN209176068U (en) | Can the sliding block inclined of gap exhaust take out shared motor bicycle central control box injection mould | |
| CN102398351B (en) | External secondary ejection mechanism assembly | |
| CN207271890U (en) | A kind of automotive suspension arm building mortion based on internal high pressure forming | |
| CN202239132U (en) | Bellows forming machine | |
| CN105346020B (en) | Hydraulic drive mechanism in a kind of injection mold mould |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20211102 Address after: 257000 room 2007, employment and entrepreneurship center, No. 290, Nanyi Road, Dongying District, Dongying City, Shandong Province Patentee after: Shandong Xinding Management Consulting Co.,Ltd. Address before: 315500 room 310, No. 888, Zhongshan East Road, Yuelin street, Fenghua City, Ningbo City, Zhejiang Province Patentee before: NINGBO VORIAS MACHINERY TECHNOLOGY CO.,LTD. |
|
| TR01 | Transfer of patent right |