TR201517734A2 - THERMOFORM MACHINE WITH INTEGRATED EXTRUSION SYSTEM - Google Patents
THERMOFORM MACHINE WITH INTEGRATED EXTRUSION SYSTEM Download PDFInfo
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- TR201517734A2 TR201517734A2 TR2015/17734A TR201517734A TR201517734A2 TR 201517734 A2 TR201517734 A2 TR 201517734A2 TR 2015/17734 A TR2015/17734 A TR 2015/17734A TR 201517734 A TR201517734 A TR 201517734A TR 201517734 A2 TR201517734 A2 TR 201517734A2
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- plastic
- extruder
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- 238000001125 extrusion Methods 0.000 title claims abstract description 14
- 238000000034 method Methods 0.000 claims abstract description 26
- 239000004033 plastic Substances 0.000 claims abstract description 25
- 229920003023 plastic Polymers 0.000 claims abstract description 25
- 238000003856 thermoforming Methods 0.000 claims abstract description 23
- 238000010438 heat treatment Methods 0.000 claims abstract description 20
- 239000002994 raw material Substances 0.000 claims abstract description 15
- 239000000463 material Substances 0.000 claims abstract description 14
- 238000005520 cutting process Methods 0.000 claims abstract description 13
- 239000002985 plastic film Substances 0.000 claims description 24
- 238000001816 cooling Methods 0.000 claims description 19
- 239000008187 granular material Substances 0.000 claims description 3
- 238000009413 insulation Methods 0.000 claims 1
- 238000004080 punching Methods 0.000 claims 1
- 238000007493 shaping process Methods 0.000 abstract description 8
- 238000005553 drilling Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000009826 distribution Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000009966 trimming Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000013039 cover film Substances 0.000 description 1
- 238000007688 edging Methods 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000035764 nutrition Effects 0.000 description 1
- 235000016709 nutrition Nutrition 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 239000002243 precursor Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 230000008719 thickening Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
Abstract
Buluş, plastik hammaddenin şekillendirilmesi için gerekli olan termoform ve ekstrüzyon proseslerini; içerdiği ekstrüder (1), kalender (2), birincil kesme ünitesi (3), transfer ünitesi (4), ısıtma fırını (5), form istasyonu (6), ikincil kesme ünitesi (7) sayesinde harcanan zaman, enerji, geri dönüşen malzeme miktarının azaltılmasına yarayan bütünleşik ekstrüzyon sistemine sahip bir termoform makinesi ile ilgilidir.The invention relates to thermoforming and extrusion processes which are necessary for shaping plastic raw materials; time, energy, recycled by the extruder (1), calender (2), primary cutting unit (3), transfer unit (4), heating furnace (5), form station (6), secondary cutting unit (7) This invention relates to a thermoforming machine with an integrated extrusion system for reducing the amount of material.
Description
TARIFNAME BÜTÜNLESIK EKSTRÜZYON SISTEMINE SAHIP BIR TERMOFORM MAKINESI Teknik Alan Bulus, plastik hammaddenin sekillendirilmesi için gerekli olan extrüder ile levha üretimi sonrasi termofrom ile sekillenirme hakkinda yeni bir üretim süreci ile ilgilidir. DESCRIPTION A THERMOFORMING MACHINE WITH INTEGRATED EXTRUSION SYSTEM Technical Area The invention consists of the extruder and the sheet required for shaping the plastic raw material. It is about a new production process about shaping with thermoform after production.
Bulus özellikle, söz konusu plastik hammaddenin sekillendirilmesi isleminde harcanan zaman, enerji, geri dönüsen malzeme miktarinin azaltilmasi ile ilgilidir. The invention is particularly useful in the shaping process of the plastic raw material in question. It is related to reducing the amount of time spent, energy and recycled material.
Teknigin Bilinen Durumu Teknigin bilinen durumunda mevcut uygulamalarda termoform teknolojisi kullanarak gerçeklestirilen plastik hammadde sekillendirme islemlerinde, ilk olarak ekstrüzyon teknigi ile plastik levha olusturma islemi uygulanmaktadir. Bilinen teknikte ekstrüzyon islemi sonrasi olusan plastik levhalarin kenarlari, kenar kalinlasmasindan dolayi kenar kesme biçaklariyla kesilir. Bu operasyonda kenardan kesilen plastik malzeme, ya hurda atik olarak ayrilir ya da zaman ve enerji harcanarak yeniden kullanilmak üzere granül seklinde parçalanma operasyonuna tabi olurlar. Mevcut teknikte, isi enerjisine sahip yüksek sicakliktaki plastik levhalar üst üste paletlenir, prosesin devaminda kullanilmak üzere bir alanda stoklanarak sogumaya birakilir. Soguma süreleri paletlerin istif büyüklügüne ve levhalarin kalinliklarina bagli olarak 3-5 gün sürebilir. Bu durumi alaninin soguma islemi için stok ve isçilik maliyetine, enerji sarfiyatina olur. State of the Art In the state of the art, using thermoforming technology in existing applications In plastic raw material forming processes, firstly extrusion Plastic sheet formation process is applied with the technique. prior art extrusion The edges of the plastic sheets formed after the process, due to the edge thickening. cut with edging knives. In this operation, the plastic material cut from the edge, It is either separated as scrap waste or reused by wasting time and energy. They are subjected to the disintegration operation in the form of granules. In the current art, heat high-temperature plastic sheets with high energy are palletized on top of each other, To be used later, it is stored in an area and left to cool. cooling 3-5 days depending on the stack size of the pallets and the thickness of the plates it may take. This situation causes the stock and labor costs, energy costs for the cooling process of the area. it will be spent.
Teknigin bilinen durumunda soguyan levhalar, termoform prosesinde form ünitesinde kalip ile sekillendirme isleminden önce stoklandiklari alandan tekrar makineye kadar tasinip herhangi bir transfer ünitesi yardimiyla isitma firinina aktarilip, isitma firini vasitasiyla ön isitma islemine girerler. Isitma firininda plastik levha istenen sicakliga kadar isitilip daha sonra form Ünitesinde bulunan kalip, diger ekipmanlar, basinç ve sicaklik yardimiyla sekillendirme operasyonuna girer. Burada isitma firini levhayi istenen sicaklik degerlerine ve haritalanmis bölgesel isi dagilimina getirmek için önemli miktarda enerji tüketimi gerçeklestirir. In the state of the art, the cooled sheets are produced in the form unit in the thermoforming process. From the area where they are stocked before the molding process to the machine again It is transferred to the heating oven with the help of any transfer unit and transferred to the heating oven. They enter the pre-heating process through it. In the heating oven, the plastic sheet is heated to the desired temperature. the mold, other equipment, pressure and It enters the shaping operation with the help of temperature. Here is the heating oven plate. to the desired temperature values and mapped regional heat distribution. consumes a significant amount of energy.
Teknigin bilinen durumunda ekstrüzyon ve temoform islemleri birbirinden bagimsiz iki ayri üretim süreci ile üretildigi için üretim kapasitesi, plastik levha stok alani, sogutma için harcanan zaman ve enerji, birim zamanda kullanilan is gücü faktörlerinde birbirini baglayici unsurlar teskil eder. Islem, plastigin sogutulmasi sürecinde sicaklik düsmesi için geçen sürede plastik levhaya transfer edilmis isi enerjisinin, önce kaybedilmesi daha sonra termoform öncesi yeniden kazanilmasi süreçlerini içerdiginden düsük verimli bir operasyondur. In the state of the art, extrusion and temoform processes are two independent processes. production capacity, plastic sheet stock area, cooling The time and energy spent for each other in the labor factors used per unit time binding elements. The process is the temperature during the cooling process of the plastic. the heat energy transferred to the plastic sheet in the time it takes to fall, loss and subsequent recovery processes before thermoforming It is a low-efficiency operation.
TR2007/07433 nolu tam otomatik termoform makinesi adli faydali model basvurusunda, levha (plaka) halindeki plastik malzemenin termoform makinesindeki isitma firinina otomatik olarak yüklenmesine ve termoform makinesinde sekillendirilmis levhanin ürün çikis bandi vasitasiyla makineden transfer edilmesine yardimci sistemler içermektedir. Plastik levhalarin sogutulmasi, stoklanmasi ve bu süreçlerde harcanan zaman ve enerji tasarrufu ile ilgili herhangi bir yenilik içermemektedir. Fully automatic thermoforming machine no. TR2007/07433 utility model In the application, the plastic material in the form of sheet (plate) in the thermoforming machine automatically loaded into the heating oven and in the thermoforming machine. to transfer the shaped sheet from the machine via the product output belt. Includes assistive systems. Cooling, stocking and storage of plastic sheets any innovation related to the time and energy savings spent in the processes does not include.
EP nolu termoform ambalaj makinesi ve metodu isimli patent basvurusunda makine içten besleme ünitesi ve ön sizdirmaz ünitesi içermektedir. Patent named thermoform packaging machine and method no EP In its application, the machine includes an infeed unit and a pre-sealing unit.
Içten besleme ünitesi, plastik örtü filmi sabitlenip sekil verilecek plastik malzemenin üzerini kaplayana kadar elastik plastik malzemenin sekil verme bölümüne beslenmesine olanak saglamaktadir. Plastik levhalarin sogutulmasi, stoklanmasi ve bu süreçlerde harcanan zaman ve enerji tasarrufu ile ilgili herhangi bir yenilik içermemektedir. The infeed unit is the plastic material to be fixed and shaped with the plastic cover film. to the forming part of the elastic plastic material until it covers it. provides nutrition. Cooling, stocking and any innovation regarding the time and energy savings spent in these processes. does not include.
Sonuç olarak termoform ile sekil vermede kullanilan makinelerde, öncül proses olan ekstrüzyonu, termoform ile bütünlesik biçimde gerçeklestirmeye olanak saglayan makine olmadigindan ara proseslerde stok, isçilik, zaman, enerji sarfiyati önemli miktarda ortaya çikmaktadir. As a result, in the machines used in forming with thermoforming, the precursor process which allows to perform the extrusion integrally with the thermoforming Since there is no machine, stock, labor, time and energy consumption are important in intermediate processes. amount occurs.
Bulusun Amaci Bulusun amaci; kendi ekstrüzyon sistemine sahip bir termoform makinesi ihtiyacini karsilamasidir. Purpose of the Invention The purpose of the invention; the need for a thermoforming machine with its own extrusion system. is a welcome.
Bulusun bir baska amaci; termoform islemi için gerekli olan ön isitma sürecine olan ihtiyaci ortadan kaldirarak enerji tasarrufu saglamasidir. Another purpose of the invention is; to the preheating process required for the thermoforming process. It provides energy saving by eliminating the need.
Bulusun bir baska amaci; termoform islemi için gerekli olan plastik levha kenar kesim isleminde kesilen malzeme miktarinda tasarruf saglamasidir. Another purpose of the invention is; plastic sheet edge required for thermoforming process It provides savings in the amount of material cut in the cutting process.
Bulusun bir baska amaci; termoform islemi için gerekli olan isinan plastik levhanin sogutulmasi prosesinde kullanilan enerji ve stok alanina olan ihtiyaci ortadan kaldirmasidir. Another purpose of the invention is; of the heated plastic sheet required for the thermoforming process. It eliminates the need for energy and stock space used in the cooling process. is the removal.
Bulusun bir baska amaci; levha ekstrüzyon süreci sonrasi üzerinde isi enerjisi birikmis bulunan levhanin direk termoform sürecinde kullanilmasi sayesinde daha düsük sicakliklara isitilarak sekillendirme saglayacak bir kombine süreç olmasi hakkindadir. Another purpose of the invention is; heat energy on the plate after the extrusion process Thanks to the use of the accumulated plate directly in the thermoforming process, Being a combined process that will provide shaping by heating to low temperatures is about.
Sekil Açiklanmasi Sekil-1:Bulusa konu olan bütünlesik ekstrüzyon sistemine sahip bir termoform makinesinin çalisma prosesinde yer alan elemanlarin görüntüsüdür. Figure Explanation Figure-1: A thermoformer with an integrated extrusion system, which is the subject of the invention It is the image of the elements involved in the working process of the machine.
Sekil-2:Bulusa konu olan bütünlesik ekstrüzyon sistemine sahip bir termoform makinesinin ön isitma sistemi içeren prosesinde yer alan elemanlarin görüntüsüdür. Figure-2: A thermoformer with an integrated extrusion system, which is the subject of the invention It is the image of the elements in the process of the machine that includes the preheating system.
Sekil Referanslarinin Açiklanmasi 1. Ekstrüder 1.1 Granül Besleme 1.2 Ekstrüder Kovani 1.3 Ekstrüder Vidasi 1.4 Ekstrüder Kafasi 2. Kalender 2.1 Termal Kamera 2.2 Kalender Sogutma Sistemi 2.3 Levha Sogutma Fani 2.4 Kenar kesme ünitesi 3. Birincil Kesme Ünitesi 4. Transfer Ünitesi 4.1 Levha Paletleme 4.2 Levha Merkezleme 4.3Termal kontrol ünitesi . Isitma Firini 6. Form Istasyonu 6.1 Termoregülatör Ünitesi 7. ikincil Kesme Ünitesi 7.1 Kenar Kesme 7.2 Degistirilebilir Delme Presi 7.3 Parça Bosaltma Bulusun Detayli Açiklamasi Bulus, plastik hammaddenin plastik levha ektrüzyonu ve termoform teknolojisi kullanilarak sekillendirilmesi için gerekli olan Üretim sürecinde ve üretimde kullanilan makinede yapilan yenilikleri içerir. Explanation of Figure References 1. Extruder 1.1 Granular Feeding 1.2 Extruder Sleeve 1.3 Extruder Screw 1.4 Extruder Head 2. Calender 2.1 Thermal Camera 2.2 Calender Cooling System 2.3 Plate Cooling Fan 2.4 Edge trimming unit 3. Primary Cutting Unit 4. Transfer Unit 4.1 Sheet Palletizing 4.2 Plate Centering 4.3Thermal control unit . Heating Oven 6. Form Station 6.1 Thermoregulator Unit 7. Secondary Cutting Unit 7.1 Edge Trimming 7.2 Interchangeable Drilling Press 7.3 Piece Unloading Detailed Description of the Invention Invention, plastic sheet extrusion of plastic raw material and thermoforming technology used in the production process and It includes the innovations made in the machine.
Söz konusu bulusta Sekil-1' de görülecegi gibi, termoform ile sekillendirilmeye uygun granül haldeki plastik hammadde, belirli oranlarda geri kazanilmis malzeme ve renk verici hammadde ile karistirilarak granül besleme (1.1) bölümünden ekstrüdere (1) disaridan beslenir. Granül haldeki plastik hammadde malzeme, ekstrüder kovaninda (1.2) isitma islemi ile eriyik halinde gelir. Ekstrüder kovaninin (1.2) çesitli bölgeleri malzemenin hareket yönü boyunca 200-220 °C civarina kadar isitma kapasitesine sahiptir. Ekstrüder kovani (1.2) ayni zamanda plastik hammadde malzemenin sürtünmesinden dolayi zaman zaman artan sicakligi kontrol altinda tutmak için sogutma kabiliyetine de sahiptir. Ekstrüder vidasi (1.3) üzerindeki döner mil sayesinde eriyik hale gelen plastik hammadde malzemesini sikistirarak ekstrüder kafasina (1.4) dogru ilerletir. Genis ve yayvan bir düzenege sahip ekstrüder kafasi (1.4) eriyik hale gelmis plastik hammaddeyi yüksek basinç altinda levha biçiminde sekillenmeye zorlar. Ekstrüder kafasi (1.4) Ievhanin homojen malzeme dagilimi göstermesi için isi kontrol özelligine sahiptir. Ekstrüder kafasi (1.4) ayni zamanda degisik genislik ve kalinlikta plastik levha üretebilme özelligine sahiptir. As can be seen in Figure-1 in the said invention, it is suitable for shaping with thermoforming. granular plastic raw material, certain proportions of recycled material and color from the granule feeding section (1.1) to the extruder (1) by mixing with the donor raw material is fed from the outside. Granular plastic raw material, in the extruder sleeve (1.2) comes in melt form with the heating process. Various regions of the extruder barrel (1.2) Heating capacity up to 200-220 °C along the direction of movement of the material. has. The extruder sleeve (1.2) is also the material of plastic raw material. to keep the temperature rising from time to time due to friction under control. It also has cooling capability. Rotary shaft on extruder screw (1.3) extruder by compressing the melted plastic raw material advances it towards the head (1.4). Extruder head with a wide and flat arrangement (1.4) molten plastic raw material in sheet form under high pressure forces it to settle. Extruder head (1.4) Ievhan's homogeneous material distribution It has heat control feature to show it. The extruder head (1.4) is also It has the ability to produce plastic sheets of different widths and thicknesses.
Ekstrüder kafasindan (1.4) çikan yumusak yapidaki plastik levha, kalender (2) adi verilen ünite; su, hava veya farkli bir malzeme ile plastik levhanin sogutulmasina ve içinde bulunan silindir biçimindeki bosluklar sayesinde Ievhanin nihai kalinliginin ayarlanmasini saglar. Üzerinde konumlandirilan termal kamera (2.1) vasitasiyla kalender (2), sicaklik ayarlayabilme özelligine sahiptir. Kalendere (2) entegre çalisan kalender sogutma sistemi (2.2), termal kameradan (2.1) aldigi datalar ile plastik levhanin soguma sicakligini istenilen seviyede kontrol ederek, bütünlesik sistemde, termoform ile sekillendirme öncesinde plastik Ievhanin ön isitmaya olan ihtiyacini ortadan kaldirir. Plastik levhanin kenar kesiminin kesilme ihtiyacinin bütünlesik proseste ortadan kaldirilmasi ve levhanin daha az sogutularak sicak olarak birakilmasi sayesinde sadece ekstruder bölümü, %10 ila %20 arasinda enerji tasarrufu saglar, levhanin ön isitma ihtiyacinin ortadan kaldirilmasi ile birlikte bütünlesik proseste termoform isleminden %30 ila %50 arasinda tasarruf saglanir. The soft plastic sheet coming out of the extruder head (1.4) is called the calender (2) given unit; cooling of the plastic sheet with water, air or a different material and Thanks to the cylindrical cavities in it, the final thickness of the allows it to be set. Via the thermal camera (2.1) positioned on it calender (2) has the feature of adjusting the temperature. Working integrated with the calender (2) calender cooling system (2.2), thermal camera (2.1) and plastic by controlling the cooling temperature of the plate at the desired level, in the integrated system, Before forming with thermoforming, the plastic sheet needs to be preheated. eliminates it. Integration of the need to cut the edge of the plastic sheet is eliminated in the process and the plate is cooled less and hot only the extruder section, 10% to 20% energy provides savings, together with the elimination of the need for pre-heating of the plate In the integrated process, 30% to 50% savings are achieved from the thermoforming process.
Levhalarin bekleyerek sogutulmasi islemi için gerekli stok ve isçilik maliyetlerini ortadan kaldirir. Inventory and labor costs required for the cooling of the plates by waiting. eliminates it.
Uygun sicaklik degerine, homojen malzeme yapisina ve istenen kalinliga sahip levha, transfer ünitesi (4) ile termoform isleminin gerçeklesecegi, üzerinde plastik levhaya final formunu verecek kalibi bulunduran form istasyonuna (6) iletilir. Transfer ünitesi (4) üzerinde yer alan levha merkezleme (4.2), levhanin form istasyonuna (6) iletilirken dogru pozisyonlanmasini saglar. Form istasyonuna (6) entegre çalisan termoregülatör ünitesi (6.1), Ievhanin seklini alacagi kalibin üzerindeki sicaklik degerlerini kontrol edebilme özelligine sahiptir. Bu özellik form istasyonunun (6), sicaklik, çevrim süresi parametrelerini ayarlamasini saglar. It has suitable temperature value, homogeneous material structure and desired thickness. plate, on which the thermoforming process will take place with the transfer unit (4), on the plastic It is transmitted to the form station (6), which has the mold that will give the final form to the plate. Transfer The plate centering (4.2) located on the unit (4) is connected to the form station (6) of the plate. It ensures correct positioning while transmitting. Working integrated with the form station (6) thermoregulator unit (6.1) It has the ability to control values. This feature allows the form station (6), allows it to set the temperature, cycle time parameters.
Ikincil kesme ünitesinde (7) final seklini alan plastik levhanin, kenar kesme (7.1) bölümünde fazlalik olan kenarlarin kesilmesi, farkli çaplarda delme olanagi saglayan degistirilebilir delme presinde (7.2) gerekli deliklerin açilmasi, parça bosaltmada (7.3) gerekli bölümlerin bosaltilmasi islemleri gerçeklestirilir. The edge cutting (7.1) of the plastic sheet that takes its final shape in the secondary cutting unit (7) cutting the excess edges in the section, allowing drilling in different diameters drilling the required holes in the exchangeable drilling press (7.2), part unloading (7.3) The necessary partitions are emptied.
Bulus, sekillendirilmesi nispeten daha zor olan geometriler ve kalinliklar için plastik levhanin ön isitmaya olabilecek ihtiyacini karsilayacak özelliktedir. The invention provides plastics for geometries and thicknesses that are relatively difficult to form. It has the feature to meet the pre-heating need of the plate.
Söz konusu bulusun önceki teknigine ait Sekil-2' de görülecegi gibi ön isitma için gerekli durumlarda, levha sogutma fani (2.3) ile sogutulabilir. Sogutmadan sonra levhalarin kenar yüzeylerinin düzgün bir forma sahip olabilmesi için kenar kesme ünitesi (2.4) kullanilmaktadir. Daha sonra birincil kesme ünitesinde (3) boyu uygun sekilde kesilen plastik levha, transfer ünitesine (4) aktarilir. Plastik levha transfer ünitesi (4) bütünlesik veya tekil çalisma sekline göre Ievhayi, levha paletleme (4.1) bölümünde paletler ( tekil çalisma halinde) veya levha merkezleme ünitesine aktarir. As can be seen in Figure-2 of the previous technique of the said invention, for preheating where necessary, the plate can be cooled by the cooling fan (2.3). After cooling In order for the edge surfaces of the boards to have a smooth form, edge cutting unit (2.4) is used. Then, in the primary cutting unit (3), the appropriate size The plastic sheet cut in this way is transferred to the transfer unit (4). plastic sheet transfer unit (4) according to the integral or single operation form, plate palletizing (4.1) It transfers the pallets (in single operation) or the plate centering unit in the section.
Plastik Levha merkezleme (4.2) ünitesi sayesinde uygun sekilde pozisyonlandirilarak isitma firinina (5) iletilir. Termal kontrol ünitesi (4.3), levhanin sicaklik dagilimini kontrol ederek, levhanin degisik bölgelerindeki isitma ihtiyacini belirler ve isitma firininin (5) sicakliginin ayarlanmasini saglar. isitma firini (5), plastik levhanin isitilmasi için gereken optimum enerjiyi vererek fazla enerji ve isi kaybini önler. Thanks to the Plastic Plate centering (4.2) unit, it can be positioned appropriately. transmitted to the heating furnace (5). The thermal control unit (4.3) controls the temperature distribution of the plate. By controlling it, it determines the heating need in different parts of the plate and It allows the temperature of the oven (5) to be adjusted. the heating oven (5), the plastic sheet It prevents excess energy and heat loss by giving the optimum energy required for heating.
Optimum isitma islemine tabii olan plastik levha buradan form istasyonuna (6) aktarilarak sekillendirme islemine devam edilir. The plastic sheet, which is subject to optimum heating, is transferred from here to the form station (6). and the shaping process is continued.
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TR2015/17734A TR201517734A2 (en) | 2016-12-31 | 2016-12-31 | THERMOFORM MACHINE WITH INTEGRATED EXTRUSION SYSTEM |
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