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Acuan pelbagai komponen

• 2025-07-25

Acuan pelbagai komponen

Dalam pengacuan suntikan pelbagai komponen (juga dikenali sebagai pengeluaran suntikan pelbagai warna-nota penterjemah), plastik yang berlainan atau plastik warna yang berbeza digunakan untuk menghasilkan produk suntikan suntikan melalui proses yang berbeza.

Dalam tahun-tahun kebelakangan ini, dengan pengembangan bidang aplikasi yang berterusan, teknologi pencetakan suntikan pelbagai komponen telah menjadi semakin penting. Penyelesaian inovatif yang sentiasa berubah menjadikan pengacuan suntikan pelbagai komponen semakin menarik di pasaran yang semakin meningkat.

Salah satu sebab utama pertumbuhan pesat teknologi pelbagai komponen adalah potensi manfaat yang dibawa oleh mengurangkan langkah-langkah pengeluaran. Dengan menggunakan teknologi acuan canggih, kedua -dua proses pemasangan manual dan automatik produk boleh diselesaikan dalam acuan. Dari perspektif reka bentuk produk, teknologi pengacuan suntikan pelbagai komponen menarik dalam mencegah cetak rompak reka bentuk dan menganugerahkan sub-produk dengan kesan sentuhan yang lebih baik.

1. Teknologi Slider (Teknologi Retraction Teras)

Kelebihan terbesar proses ini terletak pada pemilihan fleksibel kedudukan masuk komponen kedua. Hanya apabila gelangsar dalam rongga bahagian pra-plastik (i .e., Plastik komponen pertama-nota penterjemah) ditarik balik bolehkah plastik komponen kedua memasuki ruang yang dibebaskan di bahagian pra-plastik.

Dengan menggunakan teknologi penarikan balik teras, produk yang rapat boleh dihasilkan dengan kombinasi bahan yang serasi. Iaitu, sebelum penyembuhan komponen pertama, bahan komponen kedua disuntik, dan acuan tidak perlu dipindahkan atau dibuka.

Oleh kerana sambungan pesat semasa proses pengacuan suntikan, hubungan antara kedua -dua komponen dalam produk ini sangat seragam, manakala interlocking ketat sebenar bentuk geometri dicapai oleh komponen kedua. Dalam keadaan cair, komponen kedua plastik dapat dengan mudah meresap ke dalam jurang komponen pertama. Teknologi ini mudah dan menjimatkan ruang.

Oleh kerana pengacuan suntikan selari tidak dapat dicapai dalam proses penarikan balik teras, masa pengacuan suntikan kedua -dua bahan itu ditumpangkan. Pencetakan suntikan serentak komponen yang berbeza meningkatkan jumlah kitaran pencetakan. Oleh kerana kelemahan ini, kaedah rollback teras telah digunakan kurang dan kurang.

2. Proses pencetakan suntikan pemindahan (pemindahan tangan mekanikal)

Pencetakan suntikan pemindahan digunakan apabila bahagian -bahagian yang dibentuk suntikan perlu diatasi. Kedudukan untuk pengacuan pra-suntikan dan suntikan akhir boleh diatur ke kiri dan kanan atau ke atas dan ke bawah. Tangan mekanikal memindahkan bahagian pra-plastik dan merebut produk siap.

Sama seperti proses penarikan balik teras, acuan jenis ini tidak memerlukan tindakan putaran, jadi strukturnya tidak rumit. Kelebihannya adalah bahawa kedua -dua bahan boleh menjadi suntikan yang dibentuk serentak. Berbanding dengan kaedah penarikan balik teras, ia akan memendekkan kitaran pencetakan.

Proses pencetakan suntikan pemindahan juga termasuk: pra-suntikan mencetak produk tertentu pada satu mesin, kemudian mengeluarkan bahagian pra-dibentuk ini dan melengkapkan pengacuan suntikan dengan bahan lain pada mesin lain.

Keandalan proses membenamkan bahagian preplastik ke rongga lain sangat penting. Proses menyesuaikan tangan mekanikal berdasarkan pengalaman agak rumit. Peranti tangan mekanikal yang tepat dan terkawal diperlukan untuk memastikan kedudukan tepat bahagian pra-plastik di stesen akhir.

Proses pengacuan suntikan pemindahan memanfaatkan sepenuhnya kawasan panel acuan yang sedia ada, tetapi ia tidak sesuai untuk menghasilkan bahagian suntikan yang dibentuk dengan geometri yang sangat halus.

Kereta Mould_Taizhou Jiefeng acuan co, Ltd. (jfmoulds.com)

3. acuan plat division

Plat pemisah disepadukan pada templat bergerak dan boleh berputar. Selepas acuan dibuka, plat membahagikan pemindahan bahagian pra-dibentuk ke stesen acuan seterusnya, dan produk akhir adalah suntikan yang dibentuk.

Templat putaran ketiga telah ditambah kepada dua templat acuan plat pemisah. Plat ini boleh berputar di sekitar paksi pusat. Plat pemisah pertama dikeluarkan dan dibebaskan dari sisi mati bergerak, dan kemudian berputar di sekitar paksi pusat ke kedudukan kedua. Pergerakan putaran yang didorong oleh rak didorong oleh motor hidraulik atau motor servo, dan ketepatannya dapat mencapai puluhan mikron.

Selepas plat membahagikan naik, berputar dan jatuh, teras akan kembali ke kedudukan asalnya dalam mati bergerak. Kemudian, acuan ditutup dan kitaran pencetakan suntikan seterusnya bermula. Di stesen kedua, bahagian pra-plastik tertanam dengan komponen plastik lain.

Putaran plat pembahagi boleh menjadi 2 × 180 ° atau 3 × 120 °. Stesen ketiga sering digunakan untuk menyejukkan atau mengeluarkan bahagian suntikan yang dibentuk. Pelari panas digunakan sangat terhad dalam membahagikan acuan plat.

4. Acuan Sokongan Pusat

Sistem stent pusat adalah serupa dengan teknologi plat pengindeksan. Plat pemisah boleh dipermudahkan ke dalam plat jalur panjang atau bentuk silang. Sokongan pusat hanya berputar bahagian suntikan yang dibentuk ke stesen seterusnya tanpa berputar komponen mekanikal acuan. Bahagian acuan suntikan ditetapkan oleh teras yang boleh dilanjutkan, pin ejektor atau pawl semasa pemindahan.

Plat pemisah yang dibincangkan sebelum ini telah dipermudahkan ke dalam sokongan pusat yang berputar dengan bahagian suntikan yang dibentuk dan kemudian diteruskan dengan pengacuan suntikan. Acuan perancah pusat biasanya menggunakan sistem pelari panas. Salah satu kelebihannya di atas sistem plat pengindeksan ialah berat badan sistem berputar lebih kecil, membolehkannya berputar atau berayun dengan cepat, dengan itu mengurangkan kitaran pembentukan sistem.

Pencetakan bahagian -bahagian yang dibentuk suntikan boleh dicapai oleh bahagian suntikan atau bahagian lonjakan. Ia digenggam oleh teras teleskopik semasa anjakan dan kemudian ditolak dari lubang pusat.

5. Sistem Turntable

Multi-component molds using turntable systems have been widely applied in various fields of the plastic industry. Depending on different application scenarios, the turntable can be driven by hydraulic power or a motor. Using a turntable system is the most effective solution for the mold to rotate from one injection position to the next. The rotation of the mold is accomplished by the turntable, making the mold simpler.

Depending on the number of injection molding components, the positioning of the turntable can be divided into 4×90°, 3X120° or 2X180°. Among them, the simplest is to rotate the turntable 180° to the left or right. The feature that the moving die can rotate continuously in one direction is particularly suitable for multi-station molds. As the mold needs to rotate continuously, cables and

The connection of hoses, the supply of cooling water and hydraulic oil will become quite complicated.

Compared with other multi-component molds, one drawback of the turntable system is that it requires a larger injection molding machine. Generally, the length of the machine guide rails in a turntable system needs to be increased by 200mm, and the distance between the guide rails needs to be increased by 50 to 100mm.

6.bucket lifting mold

In a broad sense, the working mode of bucket lift molds and transfer injection molding technology is similar. The production is transferred from an integrated screw mechanism to the next injection molding station.

The highlight of this mold technology is that the multi-component injection molding machine used does not require special specifications. The mold will be slightly longer than the rotating mold, but it doesn't need to be rotated. In this way, there is no need to enlarge the template or increase the length of the guide pins of the injection molding machine.

The pre-molded part is moved to the next station through a screw. Then, the product undergoes injection molding and is transferred to the unloading station outside the mold. The mechanical hand takes down the finished product during the injection molding stage, and the injection molding cycle will not be affected.

The empty half mold is sent back to the injection molding station again. During the mold opening stage, the second screw moves the half mold from the unloading station to the pre-plasticizing station. In this way, the bucket lifting cycle is completed and a new cycle begins anew.

Komoditi Mould_Taizhou Jiefeng acuan co, Ltd. (jfmoulds.com)

7-cubic-meter stacked mold technology

The advantage of cubic mold stacking technology over other mold technologies lies in the fact that with the same size of machine, the number of cavities in the mold can be doubled. In other words, for the same order volume, the size of the machine can almost be halved.

7.1 Cubic rotary mold stacking technology

When applying the rotary die stacking technology, the rotation of the mold is accomplished by a horizontally rotatable central module.

The pre-plastic part is first formed on the first parting surface. When the mold is opened, the pre-plastic part remains on the central rotating module. When the mold is fully opened, the central module rotates 180° to the second profile surface. After the mold is closed again, the second component of the plastic is injected into the second cavity containing the pre-molded part.

By applying a 4×90° rotating cubic die, secondary processing can be carried out simultaneously at the second station (operator side) and the fourth station (non-operator side). For instance, the second station is used for cooling injection-molded parts, while the fourth station is for the mechanical hand to pick up the products. The two processes are carried out simultaneously without affecting the molding cycle

Impact. Alternatively, the second station can also be used for in-machine or out-of-machine assembly (in-mold assembly).

7.2 Double Cubic rotating Die Stacking Technology

The double cubic stacked mold is placed between the moving and fixed half molds, and two sets of rotating stacked molds are also configured. In principle, a double-cubic stacked mold is like two independent molds working simultaneously. It has three clamping surfaces and all forming processes are carried out simultaneously, which makes the production of complex parts highly efficient.

Compared with traditional molds, when the assembly process needs to be transferred to the mold, the double cubic stack mold has a significant advantage, and the molding cycle will also be greatly reduced. Assembly processing can be carried out simultaneously with injection molding. More and more assembly processes have been transferred to in-mold operation. Because the products assembled in the mold have higher precision.

The preferred application fields of double cubic stacked molds include packaging, medical care and the automotive industry. With one process, the integration of two or more packaging components can be achieved.

8. Sequential mold stacking

Sequential mold stacking involves two sets of molds being connected back to back, with plastic filling each mold cavity in sequence and the molds being opened in a cycle.

In a common mold, the cavities on the parting surface stand opposite to each other. They are filled simultaneously during each injection molding, and the finished products are demolded at the same time when the mold is opened.

However, in sequential die stacking, the parting surfaces open alternately. That is to say, when half of the mold cools down, the other half of the mold is just demolded and re-injected. During the idle time of mold cooling, the next injection molding stage can be carried out. When the two semi-molds work in sequence, different injection molded parts of the same product series can be produced. Therefore, injection molding machines must be equipped with special programs to provide the appropriate amount of plastic required for each parting surface.

Thick-walled parts with longer cooling times are also particularly suitable for this technology.

The external edge lock mechanism enables the two semi-molds to operate alternately. The function of the side lock is similar to that of a rack and pinion system. By using a single adapter board, two ready-made molds can be transformed into a set of sequential stacked molds.

9.component molds for thermosetting plastics and elastomers

In thermosetting multi-component molds, thermosetting plastics are rarely paired with thermosetting plastics. In most cases, two types of materials, soft and hard, are used in combination. However, there are also examples of combinations of thermosetting plastics and high-temperature resistant thermoplastic central support rotary process indexing sheet materials.

Elastomers can be combined with thermoplastics and thermosetting plastics. In both cases, the pre-molded parts should be made of hard plastic.

The combination of thermosetting plastics and elastomers is mostly used in the field of engines. Both of these plastics have the characteristics of good thermal stability, resistance to engine oil and fuel oil. Therefore, thermosetting plastics and elastomers [usually nitrile rubber (NBR)] with very similar material classifications can be combined very well. The temperatures at which these two materials are produced using heated molds are also at the same level. The difference between them lies in that thermosetting plastics need to be hardened to become elastic

The body needs to be vulcanized.

The combination of soft and hard plastics can be used to improve the sense of touch or absorb vibrations. Examples of improving tactile sensation through the combination of soft and hard plastics include small devices such as hand drills, welding guns or hair dryers. Such a combination can be used in automotive engineering and engine technology to selectively absorb vibrations.