For aspects of large-span operation, large-load, extreme smooth motion, and so on, “Planar Motion Performance of Equipment” is very important, especially in the fields of lighting, automobile, industrial electrical, etc.

For above features, they play one key role for dispensing technology, specifically the products are big size and long strip.

Then, gantry structure is used usually when you need to dispense products with  “big & large” properties. Because gantry dispenser can easily achieve diverse technology designs by its extra-large worktable and wide effective travel, which means it must be with below motion control advantages:

Ø   Quick Respond & Stable Operation → efficient dispensing production

Ø    Extreme-Small Error → precise & consistent dispensing

Ø   Super-High Motion Precision → precise positioning & trajectory control in simple and complex dispensing

To complete better dispensing, Zmotion develops the “gantry dynamic dispensing solution” that fully supports these motion control technologies.

*Zmotion Dual-Gantry Dispensing*

Let’s see details.

Zmotion VPLC712 vision motion controller is one x86 Windows EtherCAT controller (also be one IPC), which can do complex motions conveniently, why?

*hardware high-integration*

Motion control, machine vision, and IO control all-in-one.

*hardware simple structure*

Convenient to Install and uninstall it, at the same time, its small size can be connected to other control components (servo drives, sensors, encoders, control valves, etc.) directly, one complete end to end motion control and machine vision solution for you.

*software PLC inside*

Configure some PC hardware resources by soft kernel MotionRT7, which means easy to do kernel interaction in high-speed, quick to drive executor, in this way, control the whole device.

*software real-time*

Multiple automatic equipment tasks can be processed in real-time.

For more details, please refer to “VPLC712 EtherCAT Vision Motion Controller User Manual”.

It is done by our free IDE development software   RTSys .

Why choose Zmotion this solution?

a.       Precise Glue Control

It can real-time watch & adjust glue volume, make the error small enough, and glue can be allocated accurately.

b.      Multi-File Auto-Recognize & Match

It can recognize different product files, and match them with corresponding template automatically.

Obviously, higher production efficiency can be reached by rapid switching and matching, at the same time, labor error can be reduced due to intelligent identification.

c.       Data Manage & Technology Optimize

While processing and detecting, it can save image data, import & export dispensing parameters.

Convenient to optimize technology, building one improved dispensing technology data library.

d.      Diverse Dispense Technology

There are several dispensing modes: continuous dispensing, jog spraying, screw pushing melt, etc., then your required dispensing processes can be met.

Then it can suit to all kinds of complicated production occasions quickly.

e.       High-Precision Vision Positioning

It supports vision calibration and template creating functions, if high-resolution industrial camera is matched, positioning and detection can be up to sub-pixel level.

f.        Flexible Teaching

There are manual alignment, vision teaching, CAD editing & trajectory drawing, and so on. You can learn and do it quickly.

A.     Machine Vision

a. Platform Homing & Mark Correction

While machine is initializing, and after platform homed:

--Drive dual-Mark points to vision system view center

--Capture the Mark point graphic by industrial cameras

--Record its absolute coordinates

--Build global base reference

b. Coordinates Mapping & Path Planning

Based on that data, system automatically calculates dispensing point and Mark point related coordinates relation, with the help of CAD file generated path parameters, one space mapping model of “Mark – product – dispensing path” will be created to ensure the precision.

c. Precise Compensation & Efficient Positioning

In real dispensing process, vision system will get where the Mark is in now platform system through its captured Mark image info and algorithm. At the same time, automatically adjust dispensing head space position based on preset relative coordinates. In this way, precise dispensing can be done.

In addition, no need to do repeat capture and calculation because Mark point is the fixed reference, efficiency and precision are higher again.

B.     Motion Control

a. Multi-Segment Trajectory Interpolation

Zmotion high-performance motion controller supports continuous interpolation of multi-segment, plus its self-adaption speed planning function, smooth trajectory can be done.

Therefore, it can make sure stable dispensing, especially during acceleration and deceleration. Compared to traditional dispensing, common glue buildup and track breakpoints can be avoided easily. That is, it can be consistent even if it is complex contour.

b. Axis-Z Compensation

Integrate non-touch laser height measurement module.

Use closed-loop control logic of “after detect, then dispense”.

--before dispensing head moving, laser sensors perform sub-millimeter 3D scanning of the path.

--real-time feedback the height data into motion controller.

--adjust Z axis servo module through compensation algorithm to keep constant space between needle and workpiece.

“Suitable for Curve Workpiece / Material Assembly Error Processing, because this Function Ensures Uniformity of Glue-Line Cross-Section”!

c. Precise Switch Control

Adjust dispensing valve ON & OFF and needle trajectory accurately, including delayed open, delayed close, early close, lift height, etc., no more wire drawing and glue stacking.