Spray Bottle Pen Manufacturers describes how to measure the overall size of plastic bottles:
1. Measurement of the overall height of the plastic bottle
The overall height of a plastic bottle refers to the vertical distance from the mouth of the bottle to the bottom of the bottle. The measurement method is to place the plastic bottle on a horizontal surface, touch one end of the vernier caliper to the highest point of the bottle mouth, and then rotate the bottle body 360 Degree, read the maximum and minimum values respectively, and compare the data with the design drawing size to see if they match. If the size of the plastic bottle is 40-60 ml, the height dimension should be controlled within ±0.5 mm.
2. Measurement of the outer diameter of the mouth of the plastic bottle
For this part of the measurement, the method is to straddle the measuring tool scale across the center of the bottle mouth, avoid the position of the bottle body parting line, and rotate the circular bottle mouth 360 degrees with the main shaft close to the thread of the mouth. Measure the maximum and minimum values and compare them with the design drawings of the bottle body. The error of the outer diameter should be controlled within ±0.1 mm.
3. Measurement of the outer diameter of the plastic bottle
For this part of the measurement, the method is to use the measuring surface of the vernier caliper to touch the measurement position of the maximum outer diameter of the bottle body, close the vernier caliper, rotate the plastic bottle 360 degrees, and read the maximum and minimum values, and the size of the outer diameter The error should be controlled within the range of 0.1 mm.
4. Measurement of the wall thickness of each part of the plastic bottle
For medicinal plastic bottles with a circular revolving body, cut the measuring area of the symmetrical part with a knife, so that the measuring tool can enter the detection point where each part of the bottle can be measured, and the thickness of the plastic bottle mouth, shoulder thickness, Strictly measure the thickness of the body and the symmetrical parts of the bottom of the bottle, and read the maximum and minimum values, and compare them with the design drawing data to check whether the thickness tolerances of each part of the plastic bottle are within the standard range.