MiniMatliX

automatic visual inspection machine with single table for very small O-Ring and generic pieces


LINUX

DATABASE INTEGRATION

STATISTIC REPORTS

COLOR VISION

ARTIFICIAL INTELLIGENCE

MiniMatliX is an automatic visual inspection machine with single table designed for very small O-Ring and generic pieces. It's able to check the workpiece surface in plastic, rubber and other materials in order to identify main defects (such as cuts, flashes, lacking materials, holes and halos, double-mouldings), roundness, concentricity, etc.  

There are three versions of the machine with different field of vision and, in each of them, the loading group provides all pieces to be checked on a conveyor belt, where a motorized diverter transfers them on a rotating table. From here each piece pass through a series of stations responsible for checking  defects using digital industrial cameras.

The images obtained are transfered, without data loss or disturbs, to a PC managed by a Real Time system for image processing: interaction with the operator is simple and intuitive thanks to the user-friendly interface. System stability is assured and equipped with extremely high control speeds. 

After the image processing, pieces are sorted into three different accumulation areas depending on whether they are compliant, non-compliant or recovered. Piece check frequency is high thanks to the configuration parameters saving and the fast cleaning of machine and loader. 

ILLUMINATION

  • Digital regulation of bright intensity for inside and outside surfaces
  • Possibility to control piece with reflecting surface
  • Good precision of dimensional and surface controls
  • No decadence of bright intensity

 

LASER THRUBEAM SENSOR

Laser thrubeam sensor is able to measure with extreme accuracy the planarity of the piece scanning the pieces along all of their dimension. It's possible to measure the height only for pieces perfectly planar. The elevated precision of measuring is achieved using algorithms of elaboration of the signal that allow to eliminate any imperfection of the rotating table during its oscillation.

 

DIMENSIONAL STATION

Independent measurement sensor for dimensional control of circular pieces, with the following characteristics:

  • Progressive scan high resolution B/W camera
  • Nearly zero distortion bi-telecentric lenses
  • Dedicated lighting system

Related control program features

  • Measurement of the inner/outer diameter
  • Measurement of the radial cross section
  • Measurements of general lengths, angles, radii
  • Flash defects inspection
  • Nicks defects inspection
  • Roundness inspection
  • Center distance

 

CONTROL SOFTWARE 

The software for analysis and control of components with complex shape allows the recognition of planar rotation of piece. It also recognizes the top and bottom sides and independently process the image of the piece regardless of load position.

Control program

  • Irregular profiles identification and related control with reference to the sample profile
  • Control of the maximum and minimum height of holes and flash on linear and curvilinear profiles
  • Definition of multiple calibers and control of their dimensions
  • Control of the median and punctual variation of cord sections
  • Simultaneous analysis of surface defectiveness in many inspection areas

OPTIONAL: CONTROL DEVICE OF EXTERNAL AND INTERNAL SURFACES

This system consists of two stations (internal side and external side) with each 6 progressive 2 Mpixel color scan cameras, with framing of the outside and inside of the piece every 60 °. Each camera has a very low distortion lens. In addition, the system is characterized by 2 levels of colored LED lighting arranged above and below the piece.

The system allows to optimize the illumination of the piece thanks to the independent regulation of the illuminators with pulsed light.

The control program allows you to detect defects on the external and internal edge of a piece and anomalies related to the mold closure and production defects that frequently occur in that area.

TECHNICAL SPECIFICATIONS 7 12 20
Material Rubber, plastic, PTFE, metal
Color Any color (1)
Min. external diameter  1.2 mm 1.8 mm 2.5 mm
Max. external diameter 7 mm (2) 12 mm (2) 20 mm (2)
Min. thickness 0.26 mm 0.26 mm 0.50 mm
Max. thickness 1 mm 1 mm 3 mm
O-Ring maximum thickness - - 6 mm
Productivity Up to 10 pcs/s (36,000 pcs/h) depending on the typology and material of article
Loading system Bowl feeder
Antistatic bars Standard

 

PLANARITY STATION 7 12 20
Height measurement range 9 mm 9 mm 9 mm
Dimensional resolution 0.001 mm 0.001 mm 0.001 mm
Accuracy of measurement (3) ±0.015 mm ±0.015 mm ±0.015 mm
Repeatability of measurement (±2σ) (3) ±0.025 mm ±0.025 mm ±0.025 mm

 

VERTICAL DIMENSIONAL STATION 7 12 20
Camera B/W B/W B/W
Field of view 8.4x7 mm 16.7x13.3 mm Ø27.5 mm
Maximum variation in pieces height 0.4 mm - -
Generic pieces maximum height - 0.75 mm 0.75 mm
O-Ring maximum height - 1.5 mm 1.5 mm
Dimensional resolution 0.001 mm 0.001 mm 0.001 mm
Optical resolution 0.0035 mm/px 0.0065 mm/px 0.013 mm/px
MPE (4) inside diameter 0.009 mm (3) 0.009 mm (3) 0.009 mm (3)
MPE (4) outside diameter 0.009 mm (3) 0.009 mm (3) 0.009 mm (3)

 

UPPER SURFACE STATION 7 12 20
Camera Full color Full color Full color
Field of view 8.4x7 mm 16x12 mm 25x21 mm
Dimensional resolution 0.001 mm 0.001 mm 0.001 mm
Optical resolution 0.035 mm/px 0.010 mm/px 0.010 mm/px
Minimum detectable defect size (5) 0.011x0.011 mm 0.030x0.030 mm 0.030x0.030 mm
Focus adjustment Motorized - Motorized

 

LOWER SURFACE STATION 7 12 20
Camera Full color Full color Full color
Field of view 8.4x7 mm 16x12 mm 25x21 mm
Dimensional resolution 0.001 mm 0.001 mm 0.001 mm
Optical resolution 0.035 mm/px 0.010 mm/px 0.010 mm/px
Minimum detectable defect size (5) 0.011x0.011 mm 0.030x0.030 mm 0.030x0.030 mm
Focus adjustment Motorized - Motorized

 

ABC (AUTOMATIC BLOWING CHECKER) 7 12 20
Control station blowing area good pieces Standard Standard Standard

 

OPTIONALS

 

ADDITIONAL LOADER 7 12 20
5L hopper Optional Optional Optional
15L hopper n/a Optional Optional
Bulk feeder 100L n/a Optional Optional

 

INTERNAL LATERAL STATION WITH 6 CAMERAS 7 12 20
Camera Full color Full color Full color
Width of the field of view for each camera 20 mm 20 mm 33 mm
Optical resolution 0.014 mm/px 0.014 mm/px 0.021 mm/px
Minimum detectable defect size (5) 0.040x0.040 mm 0.040x0.040 mm 0.065x0.065 mm
Focus adjustment Motorized Motorized Motorized

 

EXTERNAL LATERAL STATION WITH 6 CAMERAS 7 12 20
Camera Full color Full color Full color
Width of the field of view for each camera 16 mm 16 mm 25 mm
Optical resolution 0.010 mm/px 0,010 mm/px 0.016 mm/px
Minimum detectable defect size (5) 0.030x0.030 mm 0.030x0.030 mm 0.050x0.050 mm
Focus adjustment Motorized Motorized Motorized

 

DEVICES
ABS (Automatic Blowing System)
DTC (Dirty Table Checker)
Laminar flow cabinet
Manual cleaning machine control
Rotating warehouse
Bagging machine
Z conveyor belt elevator

 

NOTES
(1) Transparent to be tested
(2) Not deformed O-Ring, value not referred to all stations
(3) Verified on full field of view on average diameters and average cross section of oring at 20°C ± 1°C
(4) MPE = maximum permissible measurement error according to ISO/IEC Guide 99 - International Vocabulary of Metrology (VIM) - Basic and general concepts ad associated terms, 4.26
(5) Minimal variation of 20 points of tone difference in adjacency