Automatic solution adding system

A solution and solution tank technology, applied in the field of automatic solution addition system, can solve problems such as differences in pipeline flow, differences in solution volume, and inability to achieve precise control of addition amount

Active Publication Date: 2010-10-27
SHENNAN CIRCUITS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The above technology is affected by factors such as the speed of the pump body at startup and the speed of normal operation, and the pipeline is prone to air, so that the flow rate in the pipeline is different each time

Method used

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Embodiment Construction

[0031] The core of the present invention is to provide a solution adding system capable of accurately adding solutions.

[0032] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0033] see figure 2 , image 3 , figure 2 A schematic diagram of a solution adding system provided by an embodiment of the present invention, image 3 It is a schematic diagram of a specific implementation of the control system provided by the embodiment of the present invention.

[0034] Among them, 1 is the solution temporary storage par...

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PUM

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Abstract

The invention discloses a solution adding system, which comprises an adding pump, a temporary solution storage cylinder, a control system, a solution transition box, a solution cylinder, a dead weight adjusting valve and a control valve, wherein the temporary solution storage cylinder is connected with a water suction port of the adding pump through a pipeline; the solution transition box is connected with a water outlet of the adding pump through a pipeline; the solution cylinder is connected with the solution transition box through a pipeline, and the vertical height of the solution transition box is greater than that of the solution cylinder; the dead weight adjusting valve and the control valve are arranged on the pipeline between the solution cylinder and the solution transition box; and the control system controls the opening and closing of the control valve. Because the solution transition box is higher than the solution cylinder, the solution in the solution transition box flows into the solution cylinder due to the action of gravity; and when the solution is added, the control valve is first opened, and the inflow speed of the solution flowing into the solution cylinder keeps uniform all the time due to the action of the dead weight adjusting valve, thus controlling the adding amount with time and fulfilling the purpose of accurately adding the solution.

Description

technical field [0001] The invention relates to the technical field of automatic control, in particular to an automatic solution adding system. Background technique [0002] In the surface treatment equipment in the printed circuit board (Printed Circuit Board, PCB) process, in order to ensure a certain concentration of the micro-etching (pickling) solution during the production process, it is necessary to add new substances regularly and quantitatively according to the area of ​​the board. Liquid, so that the concentration of the solution is kept within the normal process range to ensure product quality. Regarding the addition of solutions, two methods of manual addition and automatic addition are often used at present, and manual addition not only consumes a lot of manpower and time, but also inaccurate control of the amount and time of addition will also affect the quality of the product. The automatic adding method not only saves manpower and time, but also adds timely ...

Claims

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Application Information

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IPC IPC(8): H05K3/00H05K3/06G05D9/12
Inventor 闵秀红赵顺滨叶现青李代杰
Owner SHENNAN CIRCUITS
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