The screw spiral quantitative Packing Machine

Stress analysis as :

For safety, taking

By a stepper motor to the screw gear ratio

We selected a suitable stepper motor and hopper size is more reasonable.

We designed an automatic filling machine is a measuring Packing Machine to perform the screw spiral quantitative Packing Machine , the exact volume of the theoretical volume , using the screw must be accurately machined . We designed the measuring machine Packing Machine screw trapezoidal cross-section . ( Since we are in the assembly diagram for the Packing Machine200g painted screw when the screw , so the screw seq example )

Take

Let us calculate each quantitative number of revolutions of the screw feeder .

Volume of each circle spiral

Formula – trapezoidal screw cross-sectional area ( )

S – Pitch ( )

t – spiral height ( )

- Circumferential length of the spiral lap ( )

Formula – trapezoidal screw pitch diameter ( )

- Diameter spiral rise angle ( )

Then

And because every time quantitative screw feed speed

Where – depending on material density ( )

- Every time quantitative screw revolutions revolutions.

We designed the machine Packing Machine

( For example in the density of milk )

And because the rotation of the stepping motor driven by the rotation of the screw to go through 1:3 deceleration . So every turn screw rotation , then the stepper motor rotates.

That takes a rotation

And because the selected stepper motor step angle

So every screw rotation , stepper motor Subashiri

By a stepper motor to run away from the frequency characteristic diagram shows the frequency characteristic is best to take a more gentle , taking into account our design Packing Machine machine working frequency of 30 bags / min , ie, every two seconds pack a bag, there are two second blanking time , also contains manually Packing Machine process, so take the stepper motor to run at the frequency characteristics .