TA的每日心情 | 开心 2019-11-19 15:19 |
---|
签到天数: 1 天 [LV.1]初来乍到
|
EDA365欢迎您登录!
您需要 登录 才可以下载或查看,没有帐号?注册
x
DEK印刷机手册SqueegeeModule
* n1 c# X/ a# h3 x; s9 L: Q" Y- ZMODULE OVERVIEW
' F' ]8 o& g7 Q# C+ NPurpose
. D3 M& v% v5 R# m! p6 [. O fThe squeegee module allows the setting and monitoring of squeegee height and pressure during the print stroke.& M9 b2 C$ `. ]5 H
The positioning of the squeegee module across the print stroke (from front to back).+ _# q% I, n, \5 q6 e' i' ^5 _
Elements
) `8 o4 I. \: f1 g/ `The major components of the squeegee module are as follows:# |# M: M ~8 c. o
? Squeegee Housing
9 ?8 C+ x/ ]6 `* K? Squeegees
2 ~6 ]) i' ]3 X' c0 M? Squeegee Pressure Amplifier
% p, v- h) Z' b/ `8 k? Squeegee Drive Stepper Motors5 q9 z9 T! Y0 g$ D
? Pre-load Set Screw
' b- k0 [0 l2 n& I1 s; l? Load Cell
# J& h' s+ V4 U" c? Main Compression Spring
8 s$ p) C* q) M( J$ Y- W; A? Squeegee Drive Mechanism
- G9 ]0 b* h: i7 Q6 E? Front And Rear Squeegee Mounts$ U; s& B6 f, ~6 t
? Home Sensor Hall Effect Switches (2 positions)9 E |2 z1 b3 _) D
Operation The squeegee drive motors move the front and rear squeegee mounts to the required positions.
: Z! q; v) Y5 D' N! X1 hThe printhead pressure system is the mechanism which drives the two squeegees independently down onto the screen and applies the pressure necessary to print.
, v6 |& Q" `- i2 f5 JThe pressure being applied during print is monitored by the pressure amplifier,and if necessary, corrections to pressure is made as part of a closed loop process. The load cell and pressure amplifier give a change in output voltage proportional to the pressure applied by the squeegees., \2 O. p& ^ _, n- E
The pre-load set screw and main compression spring are used to calibrate the load cell/squeegee pressure.9 l7 R& |5 R; \) L" H' w; S9 i
The home sensors, sited in the printhead mechanism, detect when the front and rear squeegee mounts are at the top of their travel.) b% M7 a: }% ~) ~! L5 k, c
! U; ]- @. X, C- y% E
, p7 C1 V3 T" n6 X% F& A/ ~2 J: v+ j0 q
|
|