PL78746B2

PL78746B2 -

Info

Publication number: PL78746B2
Application number: PL15911972A
Authority: PL
Priority date: 1972-11-27
Filing date: 1972-11-27
Publication date: 1975-06-30

Description

Regulacja intensywnosci nakladania tworzywa odbywa sie poprzez: regulacje napiecia, poziomu wibracji plyty i wahan kosza zasypowego, ewentualnie poprzez zmiane szybkosci przesuwu przedmiotu pokrywanego. Dalsza cecha komory to wykorzystanie wahadlowej elektrody podsterowujacej wielkosc obszaru unoszenia tworzywa.Elektroda wahadlowa moze wspólpracowac z jednym lub wieloma ramionami przenoszacymi przedmioty po¬ krywane. Napelnianie kosza tworzywem odbywa sie poza obszarem elektrostatycznego unoszenia. Ruch waha¬ dlowy elektrody sterujacej wymuszony jest ramieniem przenoszacym.Zdejmowanie przedmiotu po jego pokryciu odbywa sie w obszarze wydzielonym poza obudowa komory. Cecha ta czyni komore zupelnie bezpieczna. Zastosowanie wibracji i obrotu elektrody podajnikowej eliminuje potrzebe stosowania dodatkowych urzadzen do zbierania nadmiaru tworzywa i obniza tez napiecie zasilacza wysokonapie¬ ciowego. Zasada obrotowych ruchów ramienia przenoszacego przedmiot pokrywany i plyty podajnikowej (elek¬ trody) daje racjonalne wykorzystanie przestrzeni technologicznej. Powyzsze urzadzenie pozwala realizowac pokrywanie przedmiotów plaskich i przestrzennych, te ostatnie nalezy wprowadzac dodatkowo w ruch obroto¬ wy wokól wlasnej osi.Napylanie powierzchni przedmiotu odbywac sie moze poprzez nanoszenie czastek na powierzchnie uprzednio powleczone warstwa klejaca, mozna tez nanosic czastki tworzyw w postaci stalej na przedmiot ogrzany co powoduje ich stopienie i przyklejenie. Komora wedlug wynalazku moze miec zastosowanie w pro¬ dukcji galanterii metalowej, drzewnej, wykladzin dekoracyjnych, zabawek, papierów dekoracyjnych itp. Innym przykladem zastosowania moze byc nakladanie zywicznych proszków m.in. epoksydowych, które po stopieniu na goracej formie daja powloke o charakterze antykorozyjnym lub tez elektroizolacyjnym. PL PLThe intensity of plastic application is regulated by: adjusting the tension, the level of vibration of the plate and the oscillation of the charging hopper, or by changing the speed of the coated object. A further feature of the chamber is the use of a pendulum electrode which controls the size of the material lifting area. The pendulum electrode may cooperate with one or more arms carrying the coated objects. The basket is filled with plastic outside the area of electrostatic lifting. The swinging movement of the control electrode is forced by the transfer arm. Removal of the object after its covering takes place in an area separated outside the chamber housing. This feature makes the chamber completely safe. The use of vibration and rotation of the feed electrode eliminates the need for additional devices for collecting excess material and also reduces the voltage of the high-voltage power supply. The principle of rotational movements of the arm carrying the coated object and the feeding plate (electrodes) provides rational use of the technological space. The above device allows for covering flat and three-dimensional objects, the latter should be additionally rotated around their own axis. Spraying the surface of the object can be done by applying particles to the surfaces previously coated with an adhesive layer, you can also apply solid plastic particles to the object heated, which causes them to melt and stick. The chamber according to the invention can be used in the production of metal and wood accessories, decorative coverings, toys, decorative papers, etc. Another example of use may be the application of resin powders, e.g. epoxy, which, when melted in a hot mold, give an anti-corrosion or electrically insulating coating. PL PL

Claims

1. Claims 1. A chamber for electrostatic coating of surfaces with particulate materials in the form of an encapsulated high-voltage device, characterized in that the high-voltage feed electrode (3) is made in the form of a vibrating plate connected with a vibrator (16), which performs a rotating movement, covered shield (4) isolated from the chamber housing by high voltage insulators (14) and having cutouts where 78 746 3 above one of them there is a control electrode (6) which performs swinging movements controlled by a cam (12) and above the other the charging hopper (1) and under the electrode (3) there is a discharge hopper (18).

2. The chamber according to claim 1. The machine according to claim 1, characterized in that it has two independent drives: for the feed electrode (3) and the main shaft (8), having rotating arms (7), the movement of which is forced by the slider guides (9) connected with the gripper arms (10) transmitting additional movement to the covered object (6).

3. The chamber according to claim The method of claim 1, characterized in that the vibrator (16) is positioned above the feed electrode (3). | 4: Chamber according to claim A device according to claim 1, characterized in that it has a blower (21) with a conduit ending with a suction cone (20), which transports excess material not deposited on the coated object. 75a, 22 78 746 MKP B05b 5/00 Fig. 3 Fi94 Work. Typographer. UP PRL res. 2601/75 edition 120 + 18 Price PLN 10 PL PL