Push Up Pleating Machines
The push-up pleating machines are a special type of pleating machines. They
are an improved version of general pleating machines, capable of creating
controllable and non-repeating pleated patterns in all types of materials.
In Filter Manufacturing Industry
Push-up pleating machines play an important role in the production of
filter machines and have become one of the primary machineries used in this
industry.
Working of the Push-Up Pleating Machines
The push-up pleating machines usually have a drum, which has several
distinct rows about the circumference of the drum. Each and every drum row
contains a multitude of pins. The drum is displaced vertically, during
operation of the machine. As the drum is displaced, the pins start acting on
the push-up rods which displace the concurring blade pairs.
The vertical displacement of the drum does not result in the displacement of
the concurring blade pairs if no pin in the drum coincides with a push-up
rod. The shift of the blade pairs results into creating a "reverse
pleat" in the materials being pleated. On the other hand if a blade
pair is not translated or displaced, then a result of that a "forward
pleat" is formed. Therefore the row patterns are created by including
and excluding the pins in a drum row.
Push-up pleating machines are operated and controlled mechanically. The
position of the drum shifts as it rotates to the next sequential position
after each displacement and return of the drum. It happens so that as the
next subsequent drum displacement occurs, the next adjacent row of pins may
act on the push-up rods. Thus the distribution of the pin positions in each
drum row is responsible for creating the pleated patterns in the material.
The typical push-up pleating machines are capable of producing only pleated
material having a repeating pattern. However modifications in the pattern
produced by the pleating machine requires removal of the drum and
rearrangement of the individual pins at different locations. Since the
replacement of the drum is a very arduous and expensive operation,
therefore, it discourages variation of the patterns produced.
