CN108043937A - A kind of decompressor for steel sheel bearing processing - Google Patents

A kind of decompressor for steel sheel bearing processing Download PDF

Info

Publication number
CN108043937A
CN108043937A CN201711325468.8A CN201711325468A CN108043937A CN 108043937 A CN108043937 A CN 108043937A CN 201711325468 A CN201711325468 A CN 201711325468A CN 108043937 A CN108043937 A CN 108043937A
Authority
CN
China
Prior art keywords
plate
workbench
heated
decompressor
steel sheel
Prior art date
Application number
CN201711325468.8A
Other languages
Chinese (zh)
Inventor
蒙衍强
陈卫民
韦中明
Original Assignee
柳州市鑫裕塑胶有限责任公司
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 柳州市鑫裕塑胶有限责任公司 filed Critical 柳州市鑫裕塑胶有限责任公司
Priority to CN201711325468.8A priority Critical patent/CN108043937A/en
Publication of CN108043937A publication Critical patent/CN108043937A/en

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B08CLEANING
    • B08BCLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B5/00Cleaning by methods involving the use of air flow or gas flow
    • B08B5/02Cleaning by the force of jets, e.g. blowing-out cavities
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B08CLEANING
    • B08BCLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B7/00Cleaning by methods not provided for in a single other subclass or a single group in this subclass
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D22/00Shaping without cutting, by stamping, spinning, or deep-drawing
    • B21D22/02Stamping using rigid devices or tools
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D37/00Tools as parts of machines covered by this subclass
    • B21D37/16Heating or cooling
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B30PRESSES
    • B30BPRESSES IN GENERAL
    • B30B1/00Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen
    • B30B1/32Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen by plungers under fluid pressure
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B30PRESSES
    • B30BPRESSES IN GENERAL
    • B30B15/00Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/0076Noise or vibration isolation means
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B30PRESSES
    • B30BPRESSES IN GENERAL
    • B30B15/00Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/0082Dust eliminating means; Mould or press ram cleaning means
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B30PRESSES
    • B30BPRESSES IN GENERAL
    • B30B15/00Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/34Heating or cooling presses or parts thereof
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16FSPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F15/00Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
    • F16F15/02Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
    • F16F15/04Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
    • F16F15/08Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with rubber springs ; with springs made of rubber and metal

Abstract

The invention discloses a kind of decompressor for steel sheel bearing processing, including power distribution cabinet, punch assembly, bearing platform, thermal column, switch board, wind turbine, workbench, Die and mould plate, support column, card slot, top plate, hydraulic column, telescopic rod, extruding disk, magnet plate, fixture block, rubber pad, heated beam and damping spring.The beneficial effects of the invention are as follows:Device provides pressure by hydraulic column to telescopic rod, so as to be squeezed with smaller contact surface flitch, compressive plane is cleared up after by wind turbine, air is compressed, and the absorption of irony scrap is carried out using magnet plate, it is heated by heated beam to Die and mould plate, the steel plate material of cold matter is preheated, prevents excessive pressure from causing to burst apart to flitch.By the design of rubber pad, longitudinal momentum caused by punching press is enable to obtain certain buffering, prevents workbench from receiving crimp, by the design of buffer spring, heated beam is enable to possess stable working environment, keep the stable structure of heated beam.

Description

A kind of decompressor for steel sheel bearing processing

Technical field

The present invention relates to a kind of decompressors, are specially a kind of decompressor for steel sheel bearing processing, belong to hardware Stamping parts processing machinery field.

Background technology

With the fast development of modern industry, more and more high-precision engineerings start to occur, at the same time, as engineering " joint " of machinery, various machine components need to carry out processing in short supply, and punch process is manufacture fine details A kind of common method, punch process are by means of the power of conventional or special stamping equipment, and plate is made directly to be subject in mold Deformation force is simultaneously deformed, so as to obtain definite shape, the production technology of the product parts of size and performance, such as the vehicle of automobile Body, chassis, fuel tank, radiator fin, the drum of boiler, the housing of container, motor, the iron core silicon-steel sheet etc. of electric appliance are all that punching press adds Work.

The existing decompressor for steel sheel bearing processing has certain the defects of property in design, first, general For steel sheel bearing processing decompressor in punching course is carried out to steel flitch can because huge pressure how into flitch A part of material breaks in surface form metal debris and are scattered at the top of Die and mould plate and around, such as clear up, be likely to result in not in time The damage of Die and mould plate, so as to influence final product quality, secondly, the general decompressor for steel sheel bearing processing is often to hard The cold metal of matter carries out punching press, and in the punching course of high pressure, mechanical energy understands some and is converted into thermal energy, causes metal charge The phenomenon that plate is uneven in temperature may trigger the fracture of flitch.

The content of the invention

The purpose of the present invention is that solve the above-mentioned problems and provides a kind of punching press dress for steel sheel bearing processing It puts, the advantages of present apparatus is easy to operate, stable structure, and efficient work is highly practical.

The present invention is achieved through the following technical solutions above-mentioned purpose, a kind of decompressor for steel sheel bearing processing, Including power distribution cabinet, punch assembly and switch board, bearing platform at the top of the power distribution cabinet is set, the punching is installed above the bearing platform Component is pressed, several thermal columns are set on the side wall of the power distribution cabinet bottom, the switch board, institute are installed on the power distribution cabinet side wall Stating punch assembly includes workbench, and the middle part of the bench-top sets Die and mould plate, and the corner of the bench-top is set Several support columns, the one side of the bench-top set card slot, and top plate, the top plate top are installed above the workbench Hydraulic column is installed, telescopic rod is installed in the top plate bottom, and extruding disk, the installation of bench-top one side are installed in the telescopic rod bottom Magnet plate, the magnet plate bottom set fixture block, installation rubber pad at the top of the bearing platform, the middle part peace at the top of the bearing platform Heated beam is filled, several damping springs are installed on the outside of the heated beam.

Preferably, in order to make punch assembly that can possess stable working environment, the top plate and the work at work Make to be fixedly connected by the support column between platform, and the telescopic rod is located at directly over the mold Board position.

Preferably, it is certain so as to be provided to punching press material in order to which addition column is enable accurately to transfer heat to Die and mould plate Preheating, the height of the heated beam matches with the rubber pad, and the position of the heated beam and the mold Board position It is corresponding.

Preferably, in order to which damping spring is enable to bear momentum to workbench into row buffering, the damping spring is installed It is set on the inside of the rubber pad, and around the heated beam.

Preferably, in order to make magnet plate easy to disassemble, so as to the iron filings drawn on easy cleaning magnet plate, the card slot with The size of the fixture block matches, and the magnet plate is flexibly connected by the fixture block with the workbench.

Preferably, in order to enable wind turbine that the scrap splashed out in punching course accurately is blowed magnet plate, the wind turbine It is oppositely arranged with the magnet plate, and the sealing of the wind turbine is towards the mould disks top surface.

Preferably, in order to be stably connected with workbench and bearing platform, the size of the rubber pad and the workbench and institute Bearing platform is stated to match.

Preferably, in order to make device internal component that can operationally obtain required power source, the power distribution cabinet leads to Conducting wire is crossed electrically to be connected with the switch board, the wind turbine and the hydraulic column.

The beneficial effects of the invention are as follows:

1st, device provides pressure by hydraulic column to telescopic rod, so as to be squeezed with smaller contact surface flitch, saves Flitch raw material has been saved, compressive plane has been cleared up after air is compressed by wind turbine, and irony scrap is carried out using magnet plate Absorption, magnet plate is detachable, so as to easy cleaning, is heated by heated beam to Die and mould plate, so as to the steel plate material to cold matter It is preheated, prevents excessive pressure from causing to burst apart to flitch.

2nd, by the design of rubber pad, longitudinal momentum caused by punching press is enable to obtain certain buffering, prevents work Platform receives crimp, by the design of buffer spring, heated beam is enable to possess stable working environment, keeps heated beam Stable structure.

3rd, device have easy to operate, stable structure, efficient work, it is highly practical the characteristics of.

Description of the drawings

Fig. 1 is overall structure diagram of the present invention.

Fig. 2 is punch assembly stereochemical structure decomposing schematic representation of the present invention.

Fig. 3 is heated beam dimensional structure diagram of the present invention.

In figure:1st, power distribution cabinet;2nd, punch assembly;3rd, bearing platform;4th, thermal column;5th, switch board;6th, wind turbine;7th, workbench; 8th, Die and mould plate;9th, support column;10th, card slot;11st, top plate;12nd, hydraulic column;13rd, telescopic rod;14th, extruding disk;15th, magnet plate;16、 Fixture block;17th, rubber pad;18th, heated beam;19th, damping spring.

Specific embodiment

Below in conjunction with the attached drawing in the embodiment of the present invention, the technical solution in the embodiment of the present invention is carried out clear, complete Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, instead of all the embodiments.It is based on Embodiment in the present invention, those of ordinary skill in the art are obtained every other without making creative work Embodiment belongs to the scope of protection of the invention.

Embodiment 1

It please refers to Fig.1 shown in -3, a kind of decompressor for steel sheel bearing processing, including power distribution cabinet 1, punch assembly 2 With switch board 5, device is powered by power distribution cabinet 1;1 top of power distribution cabinet sets bearing platform 3, bears to rush by bearing platform 3 Spill pressure when pressure generates;Punch assembly 2 is installed in 3 top of bearing platform, several thermal columns 4 are set on 1 bottom side wall of power distribution cabinet, Power distribution cabinet 1 is made at work by thermal column 4, can effectively be discharged heat;Switch board 5 on 1 side wall of power distribution cabinet is installed, is passed through The overall operation of 5 control device of switch board;Punch assembly 2 includes workbench 7, and the groundwork of punching press is used as by workbench 7 Panel;The middle part at 7 top of workbench sets Die and mould plate 8, will give flitch molding template by Die and mould plate 8;7 top of workbench Corner several support columns 9 are set, top plate 2 and will be stably mounted to by support column 9 on workbench 7;7 top of workbench One side sets card slot 10, the top of workbench 7 installation top plate 11, gives punching press accessory needed for device certain gesture by top plate 11 It can height and accelerating space;11 top installation hydraulic column 12 of top plate, 11 bottom of top plate installation telescopic rod 13,13 bottom of telescopic rod peace Extruding disk 14 is filled, extrusion forming is carried out to flitch by extruding disk 14;7 top side of workbench installs magnet plate 15, passes through magnetic Iron plate 15 adsorbs the scrap generated in punching course;15 bottom of magnet plate sets fixture block 16,3 top installation rubber pad of bearing platform 17, the middle part installation heated beam 18 at 3 top of bearing platform preheats flitch by heated beam 18, prevents from expecting in punching course Plate bursts apart;18 outside of heated beam is installed by several damping springs 19.

Embodiment 2

Refer to Fig. 2 and Fig. 3 its with above-described embodiment difference lies in:Pass through support column between top plate 11 and workbench 7 13 are fixedly connected, and telescopic rod 13 is located at directly over 8 position of Die and mould plate, makes punch assembly 2 that can possess at work stable Working environment.The height of heated beam 18 matches with rubber pad 17, and the position of heated beam 18 is corresponding with 8 position of Die and mould plate, Addition column 18 is enable accurately to transfer heat to Die and mould plate 8, so as to provide certain preheating to punching press material.Damping spring 19 Mounted on the inside of rubber pad 17, and set around heated beam 18, enable damping spring 19 workbench 7 is born momentum into Row buffering.Card slot 10 and the size of fixture block 16 match, and magnet plate 15 is flexibly connected by fixture block 16 with workbench 7, makes magnetic Iron plate 15 is easy to disassemble, so as to the iron filings drawn on easy cleaning magnet plate 15.Wind turbine 6 is oppositely arranged with magnet plate 15, and wind The sealing of machine 6 enables wind turbine 6 that the scrap splashed out in punching course accurately is blowed magnet plate 15 towards 8 top surface of mould disks. The size of rubber pad 17 matches with workbench 7 and bearing platform 3, is stably connected with workbench 7 and bearing platform 3.Power distribution cabinet 1 passes through Conducting wire is electrically connected with switch board 5, wind turbine 6 and hydraulic column 12, makes device internal component that can operationally obtain required Power source.

In the use of the present invention, first, power distribution cabinet 1 is placed on stable supporting surface, by power distribution cabinet 1 to device into Row power supply, by the operation of switch board 5 (model PZ-30) control device, the flitch for needing to process is placed in mold by user On plate 8, flitch is preheated by adding in column 18, hydraulic column 12 is controlled through switch board 5 after being powered and run, and hydraulic column 12 will press Power passes to telescopic rod 13, makes 13 rapid decrease of telescopic rod, so that on the extruding disk 14 of 13 bottom of telescopic rod and Die and mould plate 8 Flitch extrusion forming, in extrusion process, 19 collective effect of rubber pad 17 and buffer spring buffers the longitudinal direction punching generated during punching press It measures, after object shaping, by hydraulic column 12 telescopic rod 13 is driven to rise, extruding disk 14 is made to depart from object, wind turbine 6, which is powered, to be run, It dries 7 surface of workbench, the chip generated in punching course is blowed into magnet plate 15, completes the cleaning to workbench.

It is obvious to a person skilled in the art that the invention is not restricted to the details of above-mentioned exemplary embodiment, Er Qie In the case of without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended power Profit requirement rather than above description limit, it is intended that all by what is fallen within the meaning and scope of the equivalent requirements of the claims Variation is included within the present invention.Any reference numeral in claim should not be considered as to the involved claim of limitation.

Moreover, it will be appreciated that although this specification is described in terms of embodiments, but not each embodiment is only wrapped Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should Using specification as an entirety, the technical solutions in each embodiment can also be properly combined, forms those skilled in the art It is appreciated that other embodiment.

Claims (8)

1. a kind of decompressor for steel sheel bearing processing, including power distribution cabinet (1), punch assembly (2) and switch board (5), Feature is used for:Bearing platform (3) at the top of the power distribution cabinet (1) is set, the punch assembly (2) is installed above the bearing platform (3), Several thermal columns (4) on the side wall of power distribution cabinet (1) bottom are set, the switch board is installed on power distribution cabinet (1) side wall (5), the punch assembly (2) includes workbench (7), and the middle part at the top of the workbench (7) sets Die and mould plate (8), the work Make the corner at the top of platform (7) and several support columns (9) are set, the one side at the top of the workbench (7) sets card slot (10), described Installation top plate (11) above workbench (7), top plate (11) the top installation hydraulic column (12), top plate (11) the bottom installation Telescopic rod (13), telescopic rod (13) the bottom installation extruding disk (14), workbench (7) top side installation magnet plate (15), Magnet plate (15) bottom sets fixture block (16), and rubber pad (17), the bearing platform (3) are installed at the top of the bearing platform (3) Several damping springs (19) are installed in the middle part installation heated beam (18) at top, heated beam (18) outside.
2. a kind of decompressor for steel sheel bearing processing according to claim 1, it is characterised in that:The top plate (11) it is fixedly connected between the workbench (7) by the support column (13), and the telescopic rod (13) is located at the mould Have directly over plate (8) position.
3. a kind of decompressor for steel sheel bearing processing according to claim 1, it is characterised in that:The heated beam (18) height matches with the rubber pad (17), and the position of the heated beam (18) and the Die and mould plate (8) position phase It is corresponding.
4. a kind of decompressor for steel sheel bearing processing according to claim 1, it is characterised in that:The damping bullet Spring (19) is mounted on the inside of the rubber pad (17), and is set around the heated beam (18).
5. a kind of decompressor for steel sheel bearing processing according to claim 1, it is characterised in that:The card slot (10) size with the fixture block (16) matches, and the magnet plate (15) passes through the fixture block (16) and the workbench (7) it is flexibly connected.
6. a kind of decompressor for steel sheel bearing processing according to claim 1, it is characterised in that:The wind turbine (6) it is oppositely arranged with the magnet plate (15), and the sealing of the wind turbine (6) is towards the mould disks (8) top surface.
7. a kind of decompressor for steel sheel bearing processing according to claim 1, it is characterised in that:The rubber pad (17) size matches with the workbench (7) and the bearing platform (3).
8. a kind of decompressor for steel sheel bearing processing according to claim 1, it is characterised in that:The power distribution cabinet (1) electrically it is connected with the switch board (5), the wind turbine (6) and the hydraulic column (12) by conducting wire.
CN201711325468.8A 2017-12-13 2017-12-13 A kind of decompressor for steel sheel bearing processing CN108043937A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201711325468.8A CN108043937A (en) 2017-12-13 2017-12-13 A kind of decompressor for steel sheel bearing processing

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201711325468.8A CN108043937A (en) 2017-12-13 2017-12-13 A kind of decompressor for steel sheel bearing processing

Publications (1)

Publication Number Publication Date
CN108043937A true CN108043937A (en) 2018-05-18

Family

ID=62132387

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201711325468.8A CN108043937A (en) 2017-12-13 2017-12-13 A kind of decompressor for steel sheel bearing processing

Country Status (1)

Country Link
CN (1) CN108043937A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108941219A (en) * 2018-06-29 2018-12-07 贵州大学 Tandem mill is used in a kind of production of aluminium alloy cable
CN110142348A (en) * 2019-04-18 2019-08-20 王航 A kind of self-priming bits stamping device for steel sheel bearing processing

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202725803U (en) * 2012-06-26 2013-02-13 洛阳爱科麦钨钼制品有限公司 Difform tungsten piece forming machine
CN103203404A (en) * 2013-03-22 2013-07-17 昆山长运电子工业有限公司 Laptop shell punch
CN205629196U (en) * 2016-05-11 2016-10-12 江西鑫台铭智能科技有限公司 Side punching machine with function of making an uproar falls in buffering
CN106166588A (en) * 2016-08-19 2016-11-30 祥鑫科技股份有限公司 Stampings negative pressure arranging device
CN206382440U (en) * 2017-01-19 2017-08-08 东莞市坤琦精密五金有限公司 A kind of hardware dies fixed mount
CN206436323U (en) * 2017-02-08 2017-08-25 东莞市力超精密机械有限公司 A kind of smooth membrane material hot-press-molding punching mechanism
CN206644379U (en) * 2017-03-30 2017-11-17 东莞星河精密技术股份有限公司 A kind of hydraulic press with hot shaping feature

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202725803U (en) * 2012-06-26 2013-02-13 洛阳爱科麦钨钼制品有限公司 Difform tungsten piece forming machine
CN103203404A (en) * 2013-03-22 2013-07-17 昆山长运电子工业有限公司 Laptop shell punch
CN205629196U (en) * 2016-05-11 2016-10-12 江西鑫台铭智能科技有限公司 Side punching machine with function of making an uproar falls in buffering
CN106166588A (en) * 2016-08-19 2016-11-30 祥鑫科技股份有限公司 Stampings negative pressure arranging device
CN206382440U (en) * 2017-01-19 2017-08-08 东莞市坤琦精密五金有限公司 A kind of hardware dies fixed mount
CN206436323U (en) * 2017-02-08 2017-08-25 东莞市力超精密机械有限公司 A kind of smooth membrane material hot-press-molding punching mechanism
CN206644379U (en) * 2017-03-30 2017-11-17 东莞星河精密技术股份有限公司 A kind of hydraulic press with hot shaping feature

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108941219A (en) * 2018-06-29 2018-12-07 贵州大学 Tandem mill is used in a kind of production of aluminium alloy cable
CN110142348A (en) * 2019-04-18 2019-08-20 王航 A kind of self-priming bits stamping device for steel sheel bearing processing

Similar Documents

Publication Publication Date Title
CN206898225U (en) A kind of small-sized punching machine with automatic clamping function
CN105215246B (en) The micro- moulding apparatus of ultrasonic vibration assistant metal and its application method
CN204320976U (en) The side blow mechanism of diel
CN104858283B (en) The punching press device of a kind of automobile-used aluminium sheet and process for stamping
CN206046726U (en) A kind of steel plate bending press
CN206046801U (en) A kind of aluminum profile extrusion stamping machine
CN204093958U (en) A kind of bending mould of curvature-adjustable
CN204194523U (en) A kind of novel ultrasonic assists press machine
CN104070129B (en) Hot extrusion forging die for pipe with flange and deep blind taper hole shaft and forging technology thereof
CN206567384U (en) A kind of automobile engine gasket seal decompressor
CN205464316U (en) Inductance duplex position processingequipment
CN205651684U (en) Clutch facing stamping equipment
CN103978087A (en) Device and method for light alloy material magnetic pulse driven solid elastic medium pressure forming
CN103273678A (en) Bi-directional powder pressing forming device capable of demoulding automatically
CN204934350U (en) A kind of mold members
CN107442685A (en) A kind of doffer of air conditioner housing punching structure
CN104475530A (en) High-energy-rate plate forming fixture with deflection self-locking chuck under complicated moving path
FR3000909A1 (en) Method, tooling and press for forming a piece
CN202963201U (en) Blank drawing die
CN203170786U (en) Laptop shell punch
CN105414233A (en) Backward extrusion die with back pressure and processing technology adopting same
CN205551242U (en) Mould
CN104001777A (en) Novel stamping device with dust collection function
CN206578206U (en) A kind of anti-deformation machined die
CN104096744A (en) Low-noise punching die

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
WW01 Invention patent application withdrawn after publication
WW01 Invention patent application withdrawn after publication

Application publication date: 20180518