CN101791755A - Metal surface imprint forming device with direct local resistance heating - Google Patents
Metal surface imprint forming device with direct local resistance heating Download PDFInfo
- Publication number
- CN101791755A CN101791755A CN 201010136555 CN201010136555A CN101791755A CN 101791755 A CN101791755 A CN 101791755A CN 201010136555 CN201010136555 CN 201010136555 CN 201010136555 A CN201010136555 A CN 201010136555A CN 101791755 A CN101791755 A CN 101791755A
- Authority
- CN
- China
- Prior art keywords
- electrode
- workpiece
- extrusion device
- actuator
- metal surface
- 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.)
- Pending
Links
Images
Landscapes
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
Abstract
一种金属加工技术领域的直接电阻局部加热的金属表面压印成形装置，包括：电源、控制模块、两个电极、致动器和挤压装置，其中：电源分别与两个电极相连传输电流，致动器与电极或者挤压装置机械相连，第一电极与第一挤压装置相连传输电流，第二电极与工件或者第二挤压装置相连传输电流，工件位于第二电极与第一挤压装置之间或者是直接位于第一挤压装置和第二挤压装置之间，控制模块与电源相连传输控制信息。本发明将直接电阻局部加热技术应用于压印工艺，实现了高效的局部加热，有利于设备小型化，结构简单化，能量消耗小，效率高，减小工件的加工应变区域，方便设备的使用和维护，适合于大批量制造工艺。
A metal surface embossing and forming device for direct resistance local heating in the field of metal processing technology, including: a power supply, a control module, two electrodes, an actuator and an extrusion device, wherein: the power supply is connected to the two electrodes to transmit current, The actuator is mechanically connected to the electrode or extrusion device, the first electrode is connected to the first extrusion device to transmit current, the second electrode is connected to the workpiece or the second extrusion device to transmit current, and the workpiece is located between the second electrode and the first extrusion device. Between the devices or directly between the first extruding device and the second extruding device, the control module is connected to the power supply to transmit control information. The invention applies the direct resistance local heating technology to the embossing process, realizes efficient local heating, facilitates miniaturization of equipment, simplification of structure, low energy consumption, high efficiency, reduces the processing strain area of workpieces, and facilitates the use of equipment and maintenance, suitable for high-volume manufacturing processes.
Description
Technical field
What the present invention relates to is the device in a kind of metalworking technology field, specifically is a kind of metal surface impression building mortion of direct resistance local heat.
Background technology
Imprint process applies pressure to mould surface of the work exactly, makes surface of the work generation plastic deformation and obtains the processing technology of required surface texture.Under the normal temperature state, because the metal hardness height, it is big to impress required pressure, thereby the Embosser scale is big, and the wearing and tearing of mould are also big.Therefore general the employing the softening method that impresses again to mobile state preferably of METAL HEATING PROCESS is called hot padding.The method of METAL HEATING PROCESS is mainly contained: smelting furnace, eddy-current heating, resistance heated, wherein eddy-current heating and resistance heated are divided into external heat and directly heating again separately.Resistance heated is distinguished in the eddy-current heating part and is, the latter vibrates the electron production in workpiece or the mould by the oscillating electromagnetic fields of outside accordingly, with heated parts or mould.Resistance heated is distinguished in the spark machined part and is, electric spark heating and processing work surface that The latter high-strength electric field breakdown potential medium produces.Directly resistance heated is distinguished in non-essential resistance heating part and is, the latter's electric current is by the resistance of the outside of workpiece and mould, but not by the resistance of workpiece or pressurizing unit itself and the resistance between workpiece and the pressurizing unit workpiece is heated.Directly the resistance local heat is different from other direct resistance heated parts and is, the latter's electric current not by or the contact interface by workpiece and impressing mould seldom.
With respect to the furnace heats mode, directly resistance heated have heating rapidly, start fast, save the energy, production efficiency height, be easy to automation, size is less thereby material saving, improve working environment, reduce space hold, reduce advantages such as maintenance cost.
Through existing literature search is found, the Chinese patent publication number is: CN101214738A, name is called: hot-press equipment and hot-press arrangement thereof, this technology comprises: two relative pressing plate, at least one coining template, a plurality of cooling tube, a cooling system and a plurality of induction coils, wherein: pressing plate, coining template, cooling tube and induction coil constitute hot-press arrangement, the coining template be arranged at pressing plate practise physiognomy to a side on, induction coil is corresponding to the coining template and be arranged in the pressing plate, cooling tube is arranged in two pressing plates, and is connected with cooling system.The shortcoming of this technology is to use the integral outer mode of heating, and energy consumption is big, and efficient is low, and the processing strain zone of workpiece is big.
Find by retrieval again, the Chinese patent publication number is: CN2206205, name is called: the hydraulic pressure printing machine, this technology comprises: support, frame, workbench, hydraulic mechanism and heater, wherein: heater is last electric hot plate and the following electric hot plate that heating resistor is installed in the plate, and upper and lower electric hot plate lid is arranged, and the style model is installed on the following electric hot plate, last electric hot plate is driven by hydraulic mechanism and moves up and down, and the edge of following electric hot plate is drawn to push away by handle with the wheel rolling does the turnover motion.The shortcoming of this technology also is to use the integral outer mode of heating, and energy consumption is big, and efficient is low.
Find by retrieval again, international patent is: WO-2006-034193, name is called: the metal forming apparatus of resistance heated and technology (Metal forming apparatus and process with resistance heating), this technology comprises: be used to receive the base station with supporting workpiece, first and second electrode holders, power supply and fluid source, actuator, wherein: each electrode holder is communicated with the power supply electric connection and with the fluid source fluid, electrode holder engages with workpiece and electric current and fluid is assigned on it, and actuator links to each other with at least one folder machinery.The shortcoming of this technology is to use whole mode of heating, and energy consumption is big, and efficient is low, and the processing strain zone of workpiece is big.
Summary of the invention
The objective of the invention is to overcome the above-mentioned deficiency of prior art, a kind of metal surface impression building mortion of direct resistance local heat is provided.The present invention is applied to imprint process with direct resistance local heat technology, has realized local heat efficiently, helps device miniaturization, simplifies the structure, and reduces the processing strain zone of workpiece, makes things convenient for the operation and maintenance of equipment, is suitable for manufacturing process in enormous quantities.
The present invention is achieved by the following technical solutions:
The present invention includes: power supply, control module, two electrodes, actuator and pressurizing units, wherein: the power supply transmission current that links to each other with two electrodes respectively, actuator links to each other with electrode or pressurizing unit machinery, first electrode transmission current that links to each other with first pressurizing unit, second electrode transmission current that links to each other with the workpiece or second pressurizing unit, workpiece is between second electrode and first pressurizing unit or be located immediately between first pressurizing unit and second pressurizing unit, the control module transmission control information that links to each other with power supply.
Described control module comprises: control system and three sensors, wherein: first sensor links to each other with first pressurizing unit or first electrode and transmits temperature information, second sensor and workpiece or second pressurizing unit or second electrode transmission temperature information that links to each other, displacement or pressure information that the 3rd sensor links to each other with actuator and transmits actuator, control system link to each other with three sensors respectively and transmit the information of gathering.
Described pressurizing unit is provided with sliding block between ground and the pressurizing unit, and pressurizing unit is moved horizontally.
It is one or several combination that contacts in connection, bolt connection, riveted joint, the welding that described machinery links to each other.
Described electrode is provided with radiating module.
Described pressurizing unit is provided with radiating module.
Described pressurizing unit is a plane impressing mould, or a plane impressing mould and a roller-type mould, or two roller-type moulds.
The present invention adopts resistance heated to combine with stamping technique, DC current or alternating current are directly put between workpiece and the pressurizing unit, all electric currents all flow through the contact interface of workpiece machining area and pressurizing unit, so that the process of the machining area local heating of this workpiece.The realization of direct resistance local heat of the present invention is because the stamping structure of pressurizing unit is not level and smooth, but the existing part that exceeds projection, and the part of low lower recess is also arranged.Pressurizing unit is the part that exceeds projection on the pressurizing unit with the part that the smooth surface of workpiece at first contacts.The electric current of power supply output is by exceeding the part of projection on the pressurizing unit, make on the workpiece regional area of contact with it under the bulk resistor Joule heat effect of the contact resistance Joule heat of contact interface and high current density, and temperature raises and softening easily deformable; And the part of low lower recess does not contact with workpiece on the pressurizing unit, regional area corresponding with it on the workpiece is not subjected to direct resistance heated, only be subjected to that heat is transmitted and the bulk resistor Joule heat effect of low current density and heating up, so low not softening as yet difficult distortion of temperature, therefore workpiece is easily deformable with the part that pressurizing unit contacts earlier among the present invention, the difficult distortion of the part that workpiece does not contact with pressurizing unit.
The present invention puts on electric current between workpiece and the pressurizing unit, and the machining area of workpiece is carried out local heat, makes it enter the hot mastication state; Simultaneously, pressurizing unit applies pressure to the local heat zone of this workpiece, impresses shaping.By the control electric current, can very accurately control the local degree of heat of workpiece processing; By the motion of control actuator, can very accurately control the local plastic deformation degree of workpiece processing.At last, stop electric current or workpiece is separated with pressurizing unit, make work-piece cools.The present invention is compared with prior art: use the local heat mode, energy consumes little, the efficient height, and the processing strain zone of workpiece is little.
Description of drawings
Fig. 1 is the composition connection diagram of embodiment 1;
Fig. 2 is the composition connection diagram of embodiment 2;
Fig. 3 is the composition connection diagram of embodiment 3;
Fig. 4 is the composition connection diagram of embodiment 4.
The specific embodiment
Below in conjunction with accompanying drawing device of the present invention is further described: present embodiment is being to implement under the prerequisite with the technical solution of the present invention, provided detailed embodiment and concrete operating process, but protection scope of the present invention is not limited to following embodiment.
As shown in Figure 1, present embodiment comprises: power supply 1, the first electrode 2A, the second electrode 2B, actuator 3 and plane impressing mould 5, control system 6, first sensor 6A, the second sensor 6B and the 3rd sensor 6C, wherein: power supply 1 respectively with the first electrode 2A transmission current that links to each other with the second electrode 2B, the first electrode 2A contacts the transmission current that links to each other with plane impressing mould 5 levels, the second electrode 2B contacts the transmission current that links to each other with workpiece 4 levels, plane impressing mould 5 be positioned at workpiece 4 directly over, actuator 3 be positioned at plane impressing mould 5 directly over and be connected the required pressure of transmission impression with plane impressing mould 5 bolts, first sensor 6A links to each other with the first electrode 2A and transmits the temperature information of the first electrode 2A, the second sensor 6B links to each other with workpiece 4 and transmits the temperature information of workpiece 4, the 3rd sensor 6C links to each other with actuator 3 and transmits the displacement information of actuator 3, control system 6 links to each other with three sensors respectively and transmits the temperature information of the first electrode 2A, the displacement information of the temperature information of workpiece 4 and actuator 3, control system 6 also link to each other with power supply 1 and transmit control information.
Described power supply 1 is the out-put supply of resistance welder.
Described workpiece 4 is hollow beams of aluminum.
Described plane impressing mould 5 is high speed steel materials, and the decorative pattern of impression is arranged on it.
Described electrode is a copper material.
Described actuator 3 is electronic press.
The course of work of present embodiment: control actuator 3 makes the regional local engagement that needs to impress processing on plane impressing mould 5 and the workpiece 4; The big electric current of control power supply 1 output makes the zone that needs on the workpiece 4 to impress processing be warming up to soft state under the Joule heat effect of high current density, and controls 3 pairs of plane impressing moulds 5 of actuator and exert pressure, and impresses processing; After reaching predetermined impression effect, stop the electric current output of power supply 1, and control actuator 3 stops to exert pressure, treat workpiece 4 radiating and coolings.
The advantage of present embodiment is: directly resistance local heat energy consumption is little, the efficient height, and the strain zone concentrates on the part that is subjected to the thermal softening compressive deformation.
As shown in Figure 2, the difference of present embodiment and embodiment 1 is, 3 first sensor 6A are different with the connected mode of the second sensor 6B for actuator, wherein: workpiece 4 be positioned at plane impressing mould 5 directly over, the second electrode 2B be positioned at workpiece 4 directly over and be connected transmission current with workpiece 4 contact, actuator 3 be positioned at the second electrode 2B directly over and be connected the required pressure of transmission impression with the second electrode 2B bolt, link to each other with plane impressing mould 5 temperature information of transport plane impressing mould 5 of first sensor 6A, the second sensor 6B is positioned to link to each other on the second electrode 2B and with the second electrode 2B and transmits the temperature information of the second electrode 2B, the 3rd sensor 6C links to each other with actuator 3 and transmits the pressure information of actuator 3, link to each other with three sensors respectively temperature information of transport plane impressing mould 5 of control system, the pressure information of the temperature information of the second electrode 2B and actuator 3, control system also link to each other with power supply 1 and transmit control information.
The described second electrode 2B is provided with radiating module.
Described actuator 3 is hydraulic presses.
The described first sensor 6A and the second sensor 6B are temperature sensors, and the 3rd sensor 6C is a pressure sensor.
The course of work of present embodiment: control actuator 3 makes the regional local engagement that needs to impress processing on plane impressing mould 5 and the workpiece 4; The big electric current of control power supply 1 output makes the zone that needs on the workpiece 4 to impress processing be warming up to soft state under the Joule heat effect of high current density, and controls 3 pairs of plane impressing moulds 5 of actuator and exert pressure, and impresses processing; After reaching predetermined impression effect, stop the electric current output of power supply 1, by the radiating module among the second electrode 2B workpiece 4 is carried out radiating and cooling; Treat that workpiece 4 is cooled to predetermined temperature, control brake 3 again and stop to exert pressure.
The advantage of present embodiment: directly resistance local heat energy consumption is little, the efficient height, the strain zone concentrates on the part that is subjected to the thermal softening compressive deformation, can control the variations in temperature of workpiece 4, and control system 6 can be monitored heating and moulding process, thereby the control accuracy height of technical process.
As shown in Figure 3, the difference of present embodiment and embodiment 2 is: the pressurizing unit of present embodiment is plane impressing mould 5 and roller-type mould 7, and present embodiment also comprises: sliding block 8, wherein: the second electrode 2B is connected CURRENT DISTRIBUTION on the roller-type mould with 7 contacts of roller-type mould, the second sensor 6B links to each other with roller-type mould 7 and transmits the temperature information of roller-type mould, actuator 3 is connected the motion with the vertical direction of control roller-type mould 7 with the supporting structure bolt of roller-type mould 7, the lower end of roller-type mould 7 contact with workpiece 4 link to each other with CURRENT DISTRIBUTION on the workpiece 4 and downforce is acted on the workpiece 4, sliding block 8 rest on the ground and contact continuous so that plane impressing mould 5 moves horizontally with the below of plane impressing mould 5.
The described second electrode 2B is an electrographite brush.
Described roller-type mould 7 is hot rolling roll-type mold materials.
Described sliding block 8 is slide rail or pulley.
Described actuator 3 is hydraulic presses.
The course of work of present embodiment is: control actuator 3 makes the part, zone that needs on the workpiece 4 to impress processing engage with plane impressing mould 5 by roller-type mould 7; The big electric current of control power supply 1 output, make the zone that needs on the workpiece 4 to impress processing under the Joule heat effect of high current density, be warming up to soft state, control actuator 3 is exerted pressure by 7 pairs of workpiece 4 of roller-type mould, and control plane impressing mould 5 carries out laterally moving, roller-type mould 7 rolls, and carries out the processing of roll-in impression; After reaching predetermined impression effect, stop the electric current output of power supply 1, and control actuator 3 stops to exert pressure, treat workpiece 4 radiating and coolings.
The advantage of present embodiment is: directly resistance local heat energy consumption is little, the efficient height, and the strain zone concentrates on the part that is subjected to the thermal softening compressive deformation, and roll-in impression forming technology helps enhancing productivity.
As shown in Figure 4, present embodiment comprises: power supply 1, the first electrode 2A, the second electrode 2B, actuator 3, the first roller-type mould 5A, the second roller-type mould 5B, control system 6, first sensor 6A, the second sensor 6B and the 3rd sensor 6C, wherein: power supply 1 respectively with the first electrode 2A transmission current that links to each other with the second electrode 2B, the first electrode 2A is connected transmission current with first roller-type mould 5A contact, the second electrode 2B is connected transmission current with second roller-type mould 5B contact, actuator 3 is positioned at the top of the first roller-type mould 5A and is connected with the supporting device bolt of the first roller-type mould 5A, the first roller-type mould 5A is positioned at the top of workpiece 4 and contacts with workpiece 4 and links to each other (contact point is S1), and the second roller-type mould 5B is positioned at the below of workpiece 4 and contact continuous (contact point is S2) with workpiece 4.
Roller-type die surface in the present embodiment has the decorative pattern of required impression, and is hot rolling roll-type mold materials, and its surface is by the anti abrasive high hardness alloy of ion sputtering deposition one deck, as tungsten carbide or titanium carbide.
Described control module comprises: control system 6, first sensor 6A, the second sensor 6B and the 3rd sensor 6C, wherein: first sensor 6A contacts the temperature information of the transmission first roller-type mould 5A that links to each other with the first roller-type mould 5A, the second sensor 6B contacts the temperature information of the transmission second roller-type mould 5B that links to each other with the second roller-type mould 5B, the 3rd sensor 6C links to each other with actuator 3 and transmits the pressure information of actuator 3, control system 6 links to each other with three sensors respectively and transmits the temperature information of the first roller-type mould 5A, the temperature information of the second roller-type mould 5B and the pressure information of actuator 3, power supply 1 link to each other with control system 6 and transmit control information.
Described electrode is an electrographite brush.
Described workpiece 4 is banded workpiece, as bonding jumper or metal forming.
Present embodiment control actuator 3 makes the first roller-type mould 5A and the second roller-type mould 5B from tow sides clamping work pieces 4; The big electric current of control power supply 1 output, make the zone that contacts with two roller-type moulds on the workpiece 4 under the Joule heat effect of high current density, be warming up to soft state, control actuator 3 is exerted pressure to workpiece 4 by two roller-type moulds, and control workpiece 4 carries out laterally moving, two roller-type moulds roll, and carry out the processing of two-sided roll-in impression.Present embodiment can be realized continuous processing for banded workpiece.
The advantage of present embodiment is: directly resistance local heat energy consumption is little, the efficient height, the strain zone concentrates on the part that is subjected to the thermal softening compressive deformation, can control the variations in temperature of workpiece 4, control system 6 can be monitored heating and moulding process, thereby the control accuracy of technical process is higher, and two-sided roll-in imprint process can realize that tow sides process simultaneously, and can realize continuous processing, help further enhancing productivity.
Claims (7)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010136555 CN101791755A (en) | 2010-03-31 | 2010-03-31 | Metal surface imprint forming device with direct local resistance heating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010136555 CN101791755A (en) | 2010-03-31 | 2010-03-31 | Metal surface imprint forming device with direct local resistance heating |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101791755A true CN101791755A (en) | 2010-08-04 |
Family
ID=42584787
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010136555 Pending CN101791755A (en) | 2010-03-31 | 2010-03-31 | Metal surface imprint forming device with direct local resistance heating |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101791755A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105855339A (en) * | 2016-04-01 | 2016-08-17 | 安庆市德创机电产品设计有限公司 | Heating press type metal embossing assembly |
| CN113602011A (en) * | 2021-08-27 | 2021-11-05 | 无锡盛方圆精密刀模有限公司 | Double-sided stamping device for metal product processing |
| CN114101427A (en) * | 2020-08-31 | 2022-03-01 | 福州高意光学有限公司 | Device for manufacturing ultra-long metal strip-shaped reflection grating ruler by using plane stamping forming |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB901251A (en) * | 1959-07-08 | 1962-07-18 | Daniel Alfred Cavanagh | Improvements in precision forging methods and apparatus |
| US4532793A (en) * | 1982-09-27 | 1985-08-06 | Kraftwerk Union Aktiengesellschaft | Method for deep-drawing sheet metal and an apparatus for carrying out the method |
| US5054301A (en) * | 1990-03-26 | 1991-10-08 | Honda Giken Kogyo Kabushiki Kaisha | Method of forming metallic product |
| CN2206205Y (en) * | 1994-07-19 | 1995-08-30 | 王辉斌 | Hydraulic printing machine |
| CN101053281A (en) * | 2004-09-17 | 2007-10-10 | 普尔曼工业公司 | Metal forming apparatus and process with resistance heating |
| CN201261042Y (en) * | 2008-07-01 | 2009-06-24 | 林智勇 | Electrical heating butt screw concave point punching mold |
-
2010
- 2010-03-31 CN CN 201010136555 patent/CN101791755A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB901251A (en) * | 1959-07-08 | 1962-07-18 | Daniel Alfred Cavanagh | Improvements in precision forging methods and apparatus |
| US4532793A (en) * | 1982-09-27 | 1985-08-06 | Kraftwerk Union Aktiengesellschaft | Method for deep-drawing sheet metal and an apparatus for carrying out the method |
| US5054301A (en) * | 1990-03-26 | 1991-10-08 | Honda Giken Kogyo Kabushiki Kaisha | Method of forming metallic product |
| CN2206205Y (en) * | 1994-07-19 | 1995-08-30 | 王辉斌 | Hydraulic printing machine |
| CN101053281A (en) * | 2004-09-17 | 2007-10-10 | 普尔曼工业公司 | Metal forming apparatus and process with resistance heating |
| CN201261042Y (en) * | 2008-07-01 | 2009-06-24 | 林智勇 | Electrical heating butt screw concave point punching mold |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105855339A (en) * | 2016-04-01 | 2016-08-17 | 安庆市德创机电产品设计有限公司 | Heating press type metal embossing assembly |
| CN114101427A (en) * | 2020-08-31 | 2022-03-01 | 福州高意光学有限公司 | Device for manufacturing ultra-long metal strip-shaped reflection grating ruler by using plane stamping forming |
| CN114101427B (en) * | 2020-08-31 | 2024-07-23 | 福州高意光学有限公司 | Device for manufacturing ultra-long metal strip-shaped reflection grating ruler by using plane stamping forming |
| CN113602011A (en) * | 2021-08-27 | 2021-11-05 | 无锡盛方圆精密刀模有限公司 | Double-sided stamping device for metal product processing |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105215160B (en) | A kind of multistation Continuous Heat stamping line and method | |
| CN104438840B (en) | A kind of high-strength part multistation thermal forming device and thermo shaping method | |
| JP6240564B2 (en) | Molding apparatus and method for replacing parts of molding apparatus | |
| CN103406415A (en) | Current-assisted rapid hot forming device and method for long and thin high-strength-steel structural components | |
| CN102266881A (en) | Stretching-straightening device for online heating-straightening process of magnesium alloy extrusion material | |
| EP3848131B1 (en) | Process for straightening of metal plates and apparatus for carrying out this straightening process | |
| CN107552701A (en) | A kind of rollforming equipment of powered plastic device | |
| CN105195660B (en) | The active floating cavity die formation system of backward extrusion and forming technology | |
| CN221697945U (en) | A hot riveting equipment with double-station multi-point riveting and single-point temperature control | |
| CN204353311U (en) | A kind of high-strength part multistation thermal forming device | |
| TW200404625A (en) | Press molding method and press molding device | |
| CN205420154U (en) | Hot bender | |
| CN110216196A (en) | The floating punch hot-forming die of steel patch plate and hot press-formed method | |
| CN113941651A (en) | Electric-assisted incremental forming and shape correction integrated intelligent device | |
| CN113072291A (en) | 3D glass hot bending forming device and method based on local targeted ultrasonic resonance | |
| CN111605347B (en) | Laser heating roller type micro-imprinting device | |
| CN209969480U (en) | A switching tool magazine of a multi-station intelligent riveting machine | |
| CN215095801U (en) | Composite double-belt type continuous press temperature control system | |
| CN212525585U (en) | Elastic strip rotary turn-over mechanism | |
| CN213763623U (en) | A Crawler Composite Mould With Fast Forming Speed | |
| CN111804787B (en) | High-speed stamping die with cooling structure | |
| JP2007260761A (en) | Hot press forming device | |
| CN210848153U (en) | Forging and pressing device for metal materials | |
| CN210523436U (en) | Mould is used in processing of copper-nickel alloy rod | |
| CN218015263U (en) | Quick releasing device based on continuous forming die |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Open date: 20100804 |