Cov ncauj lus kom ntxaws piav qhia ntawm ntau txoj kev sib txawv ntawm cov qauv stamping yog kom ntseeg tau tias cov khoom lag luam tseem ceeb tau sib cais los ntawm kev tuag. Cov hau kev sib txawv sib txawv cuam tshuam nrog kev ua tau zoo, tuag lub neej thiab khoom lag luam zoo. Cov hauv qab no yog cov yam ntxwv kev ua haujlwm ntau yam hauv lub ntsej muag sib tw: 1. Tsaws Stripper Phaj (feem ntau 1. {}}} Lub sij hawm cov ntaub ntawv tuab). Cov khoom siv tau nias thaum lub sij hawm stamping, thiab sipper phaj rog cov khoom uas yuav tsum tau stripped thaum rov qab mob stroke. Muaj feem xyuam nrog cov xwm txheej: tuab phaj pam (phaj tuab ntau dua los yog sib npaug ntawm cov nyom silicon Ruaj khov stripping quab yuam, haum rau high-nrawm stamping (ntau dua los yog sib npaug rau 500 zaug / feeb). Qhov tsis zoo: Tsis tuaj yeem flatten cov khoom, nquag mus ntaus rog. Rhiab rau cov khoom tuab hloov pauv, tswj kev tswj hwm ntawm qhov sib kis yog qhov yuav tsum tau ua. Cov ntsiab lus tsim: Kev tshem tawm ntawm txoj kab txaij thiab cov punch: c {}} (1.5~2) × t
(t yog cov khoom tuab). Cov lus qhia ntev ntawm tus hwm tus PIN yuav tsum yog ntau dua los yog sib npaug rau 1.5 zaug ntawm kev ntsuas lub ntsej muag los tiv thaiv eccentric thau khoom. 2. Elastic stripper cov ntsiab cai yog muab los ntawm springs, polyurethane roj hmab lossis nitrogen springs mus nias cov txheej txheem, thiab cov khoom siv tau tso tawm pov thawj tom qab kev ua tiav. Cov qauv zoo: Lub thawv hlaum hlav hlav tawm, roj hmab ncoo unloading, nitrogen caij nplooj ntoos hlav asting. Muaj feem xyuam nrog cov xwm txheej: Cov phaj nyias stamping (xws li sib npaug ntawm cov khoom lag luam hlau) Haum rau cov khoom tuab hloov pauv thiab muaj kev ua txhaum kev ua txhaum. Qhov tsis zoo: Elastic Cheebtsam yog nquag ua rau nkees (lub caij nplooj ntoo hlav muaj kwv yees li 500, 000, {}} lub sij hawm). Kev kub ceev yuav ua rau tsis tiav vim yog hysteresis nyhuv. Tsim cov ntsiab lus
Polyurethane roj hmab compression yog tsawg dua los yog sib npaug rau 30% kom tsis txhob muaj kev laus ntxov.
3. Ejector System Cov Ntsiab Cai: Siv ejector, ejector phaj lossis pneumatic thawb tus pas nrig ntawm qhov khoom ntawm tus tuag. Hom Hom: Cov Neeg Kho Tshuab Hluav Taws Xob (Qws Txuas), Pneumatic Ejneor, Hydraulic Eyector. Siv tau cov xwm txheej: Qhov kev cuam tshuam ntawm cov khoom nqus sib sib zog nqus (sib koom tes nrog cov kab mob manavulators (sib koom tes Kev nthuav tawm ejection sijhawm tuaj yeem tswj tau kom tsis txhob muaj kev cuam tshuam ntawm qhov chaw. Qhov tsis zoo: Cov qauv nyuaj thiab cov chaw loj tuaj pwm. Pneumatic / Cov Khoom Siv Hydraulic nce ntxiv. Cov ntsiab lus tsim: Qhov Ejector yuav tsum zam cov khoom lag luam ua haujlwm (xws li cov chaw ntim khoom).
4. Pneumatic assisted demolding (Air Blow-off) Structural principle: A compressed air nozzle is set in the mold, and air is blown to assist the parts or waste to be detached at the moment of mold opening. Often used in conjunction with the ejector. Applicable scenarios: lightweight thin-walled parts (such as aluminum foil parts) products with high surface requirements (avoiding contact marks of ejector pins) stations where small waste is difficult to discharge (such as micro-hole punching) Advantages: non-contact stripping to avoid scratches on parts. Directional removal of dead corner waste. Disadvantages: dependent on stable air source, high energy consumption. Noise is high, and a muffler needs to be installed. Design points: nozzle aperture: 0.5-2mm, air pressure 0.4-0.6MPa. Injection angle 30°-45° to avoid airflow directly hitting the mold cavity. 5. Scrap Cutter Structural principle: a cutter is set at the end of the progressive die to divide the continuous waste into small segments for easy collection. It is divided into upper cutting, lower cutting and side cutting. Applicable scenarios: high-speed progressive die (such as electronic connector production) stamping line with high risk of waste winding long strip waste processing (such as heat sink punching) Advantages: prevent waste accumulation from causing mold jamming. Improve the operation stability of the automation line. Disadvantages: Increase mold complexity and blade wear points. The cutting knife needs regular maintenance (lifespan of about 1 million times). Design points: Cutting knife angle: 30°-45°, reduce shear force. Waste length: generally ≤200mm, too long and easy to sag and get stuck. 6. Combined Stripping Structure (Combined Stripping) Structural principle: combined elastic unloading + ejector device + pneumatic assistance, multi-stage collaborative stripping. For example: first stripping by the elastic unloading plate, then ejected by the ejector rod, and finally cleared by air blowing. Applicable scenarios: ultra-thin materials (t≤0.1mm, such as copper foil shielding cover) High viscosity materials (such as silicone gaskets) Micro parts stamping (such as medical needles) Advantages: Thorough stripping, adaptable to extreme working conditions. Redundant design improves reliability. Disadvantages: Complex structure, mold cost increased by 30%-50%. The timing of multi-mechanism action needs to be precisely controlled. Selection Recommendation Table Stripping Structure Applicable Plate Thickness Speed Accuracy Maintenance Cost Fixed Stripper ≥1.5mm Very High (>5 {0 0spm) Qis Low Elastic Stripper 0. {}}}}} kub ector ejector muaj qhov nruab nrab (<200spm) Very High High Pneumatic Assist ≤0.5mm Very High Very High High Scrap Cutting Knife Any High Low Low Composite Stripper Structure ≤0.2mm Medium Very High Very High Summary The design of the stripper structure needs to comprehensively consider four factors: material properties, stamping speed, precision requirements, and cost budget: High-speed stamping of thick plates: fixed stripper plates are preferred, supplemented by scrap cutting knives. High-precision punching of thin plates: elastic stripper + pneumatic assistance is the golden combination. Deep drawing complex parts: ejector + elastic stripper plate double protection. Micro-stamping extreme working conditions: composite stripper structure is the only choice. Future trends: Technologies such as intelligent stripping systems (such as pressure sensors that provide real-time feedback to adjust the ejector force) and self-lubricating stripping plates (with the life of graphene coating increased by 5 times) will further improve stripping efficiency and reliability.
