How To Made Fixture (Clamp ) OF Color Printing

Making Fixture (clamp) plays a very important role in pad printing, silk screen printing and hot stamping fields. It is a key factor in position fixture, support and overprinting.
1. Fixture for regular products
The fixture for regular products such as cylinder and cuboid are usually made by machining operation, which helps to keep the position tolerance.
2. Fixture for irregular products
Most injection molding products are of complicated shapes so you can consider using the unsaturated polyester resin (UPR for short) for help when making jigs. It is the use of UPR and catalyzer which produces infusible solidity because of the cross-linking reactions.

3. Fixture for cylinder products
Cylinder products are widely applied in the fields of silk printing, hot stamping and heat transferring. They are usually placed on the free rotation axis when making jigs. When the cylinder products touch the silk, hot stamp or silicone roll, they can be rotated with the help of jigs so as to be printed.
As for the products with small diameters, the jigs should be three-roll-on-roll.
4. Find the anchor point.
Some plastic products which are easy to contract have different sizes. It’s very important to find the common position to fix. Otherwise, some problems such as out of register or unable to fix the position may occur. ...

Pad Printing has come a long way since its birth during the pre-industrial revolution. Gone are the painstakingly hand-etched plates, the mortar- and-pestle-ground ink pigments, and the gelatin pads used by the clockmakers of yesteryear to laboriously print elaborate dial faces.
Today’s pneumatically powered pad printers can handle 3000 or more impressions per hour on precision-conveyed parts that are automatically inspected to exacting tolerances with computerized vision systems and then unloaded by high-speed, robotic pick-and-place arms.
Keeping pace with global economic demands, industrial manufacturers have seen pad-printing technology evolve to integrate efficiency, ergonomics, and environmental improvements. Pneumatic and servo motor-driven electric machines have replaced hand-operated pad presses; high-speed gantry systems now take the place of manual loading and unloading; and hermetically sealed magnetic inkcups are used instead of wasteful open inkwells.
From medical-product manufacturers’ clean rooms to automotive-manufacturing assembly lines, pad-printing machines are adaptable enough to customize for an entire spectrum of industrial product marking and consumer product-decorating needs. This discussion of innovations in pad-printing technology presents case studies that illustrate the efficacy of modern pad presses and examines some challenging jobs for which pad printing was the ultimate solution.

Case study 1: multiple, big challenges
A leading US-based appliance manufacturer needed to keep its costs down to stay competitive against cheap-labor imports. Their problem was this: how to print a wide array of models and designs of large oven-range-dial panels with compound geometries while minimizing machine setup time and maximizing throughput (Figure 1).
Decorating Demanding Parts: The challenge of printing oven-range dial panels is not just the size and shape of the panel, but also the wide range of models and designs in an ever-changing line of products, each with a different configuration of printed information and locations.

The solution involved a programmable pad printer on a gantry system outfitted with automatically changing silicone pads of different sizes, multiple cliches etched with the images needed for printing the variety of instructions and settings, and an adaptable, rotating fixture that could hold the panels while providing safety with light curtains for its employees (Figure 2).
Custom Solutions: Presses, such as the one shown here, can be customized for a wide variety of industrial uses, including decorating a panel that requires several different pads to print the different images in different locations. Programmable pad printers can store an unlimited number of print parameters, which can be called up or edited, depending on the shape and style of panel being printed....