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Insertion Mount machines with internal BHS can work with external devices to automate board flow and improve throughput. This section describes how magazine unloaders and loaders work with the IM machine Board Handling System. Elevator/conveyor operation is controlled by the Advanced Magazine Loader or Unloader. • This device consists of an input conveyor on the bottom section, an elevator, and an output conveyor on top. The unloader is located upline of the insertion machine. It unloads a board from a magazine and supplies it to the insertion machine to be processed.
A magazine containing boards to be processed by the insertion machine enters the elevator from the lower conveyor. As each board is transferred from the topmost slot of the magazine to the insertion machine, the elevator lifts up the magazine a programmed distance so the next board in the magazine is in position to be supplied to the insertion machine. When the magazine is empty, it moves out of the elevator and onto the upper conveyor.
• This device consists of an input conveyor on the top section, an
elevator, and an output conveyor on the bottom. The loader is
located downline of the insertion machine. It receives a processed
board from the insertion machine and loads it into a magazine.
An empty magazine enters the elevator from the upper conveyor.
As each board from the insertion machine is transferred into the
bottom usable slot of the magazine, the elevator moves down the
magazine a programmed distance so the next usable slot is in
position to receive the next board. This programmable distance
allows clearance for tall components on the processed board. When
the magazine is full, it moves out of the elevator and onto the lower
This procedure documents the method and apparatus for measuring the average air consumption and the peak air flow for the VCD-Seq. 8.
A Dwyer Rotameter (S/N 00006405) was used to measure the flow. As shown below, the flow meter had a number of pneumatic components on it to allow for connecting to the machine and regulating the pressure. The particular filter/regulator used is a Wilkerson CB6-03-000B J95 with a 0-160 psi gauge marked “Not for Verification.”
The scale of the Rotameter is valid at atmospheric conditions only. For our purposes we will neglect any variations in the temperature or the specific gravity of the actual air that we use. We will only concern ourselves with the pressure variations.
Where = Observed flow meter reading
= Actual flow corrected for pressure (SCFM)
= Actual absolute pressure (14.7 + regulator pressure on apparatus)
= Standard atmospheric pressure, 14.7 psi
The flow meter is to be connected to the machine in an inline fashion at the air input quick connect. The air drop is connected to the flow meter and the flow meter is then connected to the machine (actual order does not matter). For the readings to be accurate the flow meter must be held vertical and the pressure must be set as precisely as possible. The pressure should be set at 90 psi, unless the input pressure can not support this. In this case use a pressure above 80 psi with a corresponding gauge marking for accuracy. This pressure should be noted when recording measurements.
The machine should be loaded with a typical quality pattern and zeroed. While one person holds and watches the flow meter, the other person starts the machine. Peak flow is the maximum reading the flow meter obtains while the measurements are being taken. The peak flow can occur at the start of the machine or board, or in the middle of a run. So it is important to watch the meter at all times. The dynamics of the meter are not taken into account for these readings. So the actual peak flow may be slightly lower than the value on the meter. As the machine runs, the flow constantly fluctuates. Besides occasional spikes, the readings will typically fall between two measured values. These values give us the “Typical High” and “Typical Low” readings. The machine should run at least one board or window when performing the measurements. Also as many machines as possible should be measured.
Once the data is taken, these flow values read off the meter need to be converted to the actual flow in SCFM using the pressure correction factor shown above. Once all of the data is converted into SCFM the peak flow values need to be converted into CFM @ 90 psi. We can accomplish this conversion through the following:
When multiple machines are measured, the peak flow is the highest value of all of the machines. The average consumption is found by averaging all of the typical high’s and low’s.
For the VCD/Seq. 8 machine, the inserter and the sequencer were measured together initially. Then the inserter was measured in dry cycle with the sequencer portion of the machine off. The two sets of values were subtracted to determine the consumption and flow of the sequencer alone. It is important to note that adding the second sequencer drop to the machine does not change the machine consumption rate.
Inspection to IPC-610D With its comprehensive criteria for printed circuit board assemblies, IPC-A-610 is the most widely used inspection standard in the electronics industry and has earned an international reputation as the source for end-product acceptance criteria for consumer and high reliability printed circuit assemblies. Now updated to lead free, and available in many languages, IPC-A-610 has been embraced by original equipment manufacturers and electronics manufacturing services companies worldwide. Read more
The beautiful solution for led of Light twist,Cast and Huaping on insertion PCB
Direction-folding zero degree pin cutting
Currently ,the monitor of outdoor is using 6380series of Sciencgo insertion machines for mainstream,there are inside and outside shear-foots. Folding degree for 45degree and cutting foot length for 1.0-1.8mm. However they have existed some questions of quality for Light twist,Cast and Huaping etc. But they no true to production for the same order by more than a insertion machine,so “no mixed insertion”.due to over efficient the quality of production and the product efficiency.
1.Arrange of using for Direction-folding zero degree pin cutting:
Direct-folding pin cutting is a “a line mode” pin cutting. Which is use of Sciencgo radial insertion machine, and was professional designed and manufactured for LED out-monitor,professional number for 201320823140.X ,and basic on 6380series of Sciencgo insertion machine.which out size is same with inside and outside pin cutting.only if have a lit difference on cutting way and instruction designing.so the direct-folding zero degree pin cutting can be used for any insertion machine to PCB
2.”Light-twist” for analysis and solution:
——Seeing follow schematic diagram:
45° inside Folding
Both foot are not a line,so LED is “Light-twist”
——Seeing the schematic diagram of Direct-folding zero degree pin cutting: