Kumaha suntik molding mesin terus ngahasilkeun

Mesin suntik molding mangrupikeun salah sahiji alat anu seueur dianggo dina industri pangolahan plastik, biasana eta perlu dianggo pikeun lila, jadi kumaha carana mastikeun karya normal tur stabil tina mesin suntik molding dina produksi kontinyu, euweuh urusan pikeun produsén atawa pamaké tina mesin suntik molding, it is a problem worthy of attention and efforts to solve. As far as the user is concerned, under the premise of selecting the injection molding machine correctly, regular preventive maintenance is an effective way to ensure the normal work of injection molding machine. The so-called preventive maintenance is a series of preventive work and inspection, so as to avoid machine failure and extend the working life of all parts, salaku conto, the purpose of preventive maintenance is to turn a failure that causes production stoppage into a predictable and planned downtime or overhaul, and to detect and replace damaged parts in a timely manner to prevent chain damage.

Hydraulic part of injection molding machine hydraulic

transmission is hydraulic oil as the working medium, the use of sealed working volume of hydraulic oil pressure can transfer energy or power or signal. The quality of hydraulic oil and seal directly affects the stable work of hydraulic system, and indirectly affects the quality of products. To prevent and reduce the hydraulic system failure, reduce wear and tear, extend life, we should strictly use and maintain hydraulic oil.

Sacara umum, 70% of failures of hydraulic devices are caused by incorrect or improper use and maintenance of hydraulic oil. Maintaining good maintenance habits and preventive maintenance is the most effective way to reduce and prevent hydraulic failure of the machine. So the fine maintenance of hydraulic oil and hydraulic system is very important. Ku sabab kitu, it is necessary to introduce the characteristic requirements of hydraulic oil.

The most important properties of hydraulic oil are viscosity and cleanliness, as well as better oxidation resistance, anti-wear, anti-foaming, anti-corrosion and good lubrication performance

The viscosity of hydraulic oil is expressed as the average value of the kinematic viscosity at 40 °C. Our commonly used No. 46 anti-wear hydraulic oil (46csT / 40 °c) refers to this hydraulic oil at 40 °C for the average viscosity of 46 M2 / S.

The relationship between hydraulic oil viscosity and pressure and temperature is as follows: temperature increases, viscosity decreases; pressure increases, viscosity increases.

Periodic testing of hydraulic oil performance. If the oil is contaminated or deteriorated, the life of the injection molding machine will shorten, and failure may occur. Ku sabab kitu, it is necessary to test oil regularly in order to detect changes in oil properties. Dumasar ieu, decide whether to change the oil.

We can use a simple visual method to understand the state of the oil:

Appearance Test: put the new oil sample and the old oil sample in their respective test tubes, compare their color, clarity, the presence of floating objects and water precipitation at the bottom of the test tubes.

Drop Test: put the old oil drop on the filter paper (dry sheet) , wait for 1 hour and then observe. If the oil is dirty or visibly deteriorated, the contaminant will be easily observed

Finger friction: The use of the old oil dip in the finger friction, if the viscosity reduction deterioration, feel very rough, there is no thick feeling. The oil drops fall smoothly from the fingers, and there is no rebound phenomenon.

Hydraulic maintenance starts from the following aspects:

Replace the old hydraulic oil

In principle, the hydraulic oil is changed every 5000 machine operating hours or at most one year. No matter how good the hydraulic oil is, after being used for a certain period of time, the metal and rubber particles of the worn pump and other moving parts will enter the oil, which will cause the generation of sludge and dirt. In normal maintenance, there will be some Contaminants are deposited on the parts and carried into the hydraulic oil.

Even if hydraulic oil is used correctly, it is generally considered that its working life is 1 year, up to 2-3 taun. Once it deteriorates, do not hesitate to change to new oil. Good oil quality is the cornerstone of maintaining the stability of the hydraulic system.

Clean the inside of the fuel tank

Hydraulic maintenance is not as simple as pumping old oil, adding new oil, or just adding some new oil. Not only change the oil, but it is also important to clean the hydraulic equipment.

After draining the old oil, do not wipe the oil tank with a rag to prevent the end of the thread from blocking the filter. Use kerosene and copper brushes to clean the magnetic frame and filter in the fuel tank, and use an air gun to clean and blow dry.

Clean the air filter

The air filter outside the fuel tank makes the air in and out of the fuel tank easy according to the change of the oil level in the fuel tank. Every time the oil is changed for maintenance, the air filter should be taken out, cleaned with kerosene, and dried with an air gun. Failure to clean may cause stolen goods to enter the fuel tank and affect the oil quality.

Clean the inner and outer walls of the oil-water cooler

To clean the scale inside and outside of the cooler tube, you can use a weak hydrochloric acid solution to wash, rinse with water, and blow dry with an air gun. Use a copper brush to clean the dirt on the barrier.

Clean the oil valve

First use a waste cloth and air gun to clean the dirt outside the valve. Unplug the plug and disassemble the oil valve. Use a kerosene brush to clean the valve core, the sludge and debris on the valve body, and blow dry with an air gun, pay attention to the valve core disassembly and assembly do not install the reverse, do not miss the O-ring.

Cleaning cylinder

Mechanical part maintenance of injection molding machines

1. Paralelisme template

The parallelism tina citakan bisa pangalusna ngagambarkeun kaayaan bagian clamping. The non-paralel template bakal nyieun produk unqualified sarta ngaronjatkeun maké alat jeung kapang. The parallelism tina citakan bisa mimitina reflected ku gerakan pelat buntut salila clamping kapang jeung analisis penampilan produk., tapi kaayaan pastina perlu dideteksi ku indikator dial jeung instrumen lianna. Penyesuaian paralelisme template kedah dilakukeun ku jalma anu akrab dina léngkah-léngkah, disebutkeun adjustment bener bakal ngabalukarkeun karuksakan gede mesin.

2. adjustment ketebalan kapang

Sistem adjustment ketebalan kapang kudu dipake rutin pikeun nyaluyukeun ketebalan kapang ti thickest ka thinnest pikeun mastikeun gerakan lemes.. Pikeun mesin anu ngagunakeun kapang sarua keur lila, inspeksi ieu kudu dipigawé pikeun nyegah malfunctions.

3. Sistim lubrication sentral

Sadaya bagian anu gerak mékanis kedah dilumasi leres, and the central lubrication system is one of the must-haves for the current injection molding machine. Jumlah minyak dina sistem lubrication sentral kudu sering dipariksa pikeun nempo lamun pinuh, sareng minyak pelumas anu dianggo kedah beresih sareng bebas tina najis pikeun mastikeun yén sadaya posisi pelumas ngagaduhan suplai minyak pelumas.. Upami pipa minyak diblokir atanapi bocor, eta kudu diganti atawa repaired geuwat. Paling maké mékanis lumangsung alatan kurangna lubrication, jadi perhatian nyukupan kudu dibayar ka lubrication.

4. Tetep sakabéh gerakan mulus

Vibration or unsmooth movement may be caused by improper speed adjustment, robah speed na waktos uncoordinated, atawa adjustment tekanan mékanis atawa minyak. Geter sapertos ieu bakal ngagancangkeun ngagem bagian mékanis sareng ngagentos sekrup anu kenceng, jadi geter kudu ngurangan jeung dihindari.

5. pamariksaan bearing

Nalika bearing berpungsi, aya noise abnormal, atanapi suhu naék, hartina jero bearing geus lungse, sareng éta kedah dipariksa atanapi diganti dina waktosna sareng dieusi deui ku gajih.
6. Sistim suntik

Sekrup suntik, check ring and barrel constitute the heart of the injection molding machine, anu nangtukeun kualitas sareng efisiensi pamrosésan sareng kedah dijaga dina kaayaan kerja anu saé. kahiji, take necessary measures to prevent non-plastic debris from mixing into the plastic material flow, lajeng nengetan mariksa celah bener antara screw jeung tong, jeung cingcin cek na tong. Celah normal kedah tiasa ngégél aliran balik palastik sareng ngahasilkeun palastik Nalika kapanggih yén tindakan lebur lambat., bahan lebur boga bintik jeung bintik hideung, atawa produk teu stabil, nu maké screw nu, ring non-balik na tong kudu dipariksa.

Electrical parts maintenance of injection molding machines

1. Inspeksi konektor kawat

Kawat unfastened dina konektor bakal ngabalukarkeun suhu luhur atawa karuksakan spark dina posisi konektor. A konektor goréng ogé bakal mangaruhan pangiriman sinyal; konektor on contactor bakal gampang leupas alatan Geter tina aksi éléktromagnétik, jadi perlu mariksa konektor kawat rutin Posisi sarta tighten.

2. Motor listrik

Umumna, motor téh hawa-cooled. Akumulasi lebu ngabalukarkeun kasusah dina dissipation panas. Ku sabab kitu, eta cleaned rutin unggal taun. A cutoff overload motor biasana dipasang dina sirkuit. Watesan arus alat panyalindungan tiasa disaluyukeun sareng kedah disaluyukeun dumasar kana kakuatan motor. Dina waktos anu sasarengan, sakali panyalindungan overload diaktipkeun, eta kudu ditangtukeun pikeun pariksa naha aya leungitna fase, kontak goréng atawa suhu minyak tinggi saméméh mencét switch posisi mulang.

3. Silinder pemanasan sareng thermocouple

The heating cylinder should be checked regularly to ensure that it is fastened to ensure effective heat transfer. Ngaduruk silinder pemanasan henteu gampang dideteksi dina produksi normal. Kusabab ieu, nengetan kaayaan kerja controller suhu sarta nangtoskeun naha silinder pemanasan normal. Salaku tambahan, karuksakan umum tina silinder pemanasan nyaéta sambungan kawat. Alatan gabungan goréng, résistansi kontak nambahan, sarta overheating lokal tina sambungan ngabalukarkeun panganteur dioksidasi jeung ruksak.

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