Competence at LWB

Modular Manufacturing Cells

Layout Multi cell

Example

Multistation for molded rubber parts

Purpose

loading of metal inserts, encapsulation with rubber, unloading of final parts

 

Process steps

  • Provision of inserts by hand
  • Loading inserts in a heated 4-cavity mold (demolding station) by robot (3)
  • Translating loaded mold into injection molding machine by robot (5)
  • Injection process
  • Translating filled mold into heating station by robot (5)
  • Vulcanization process
  • Translating mold into demolding station by robot (5)
  • Rubber mold opens
  • Unloading molded rubber parts and sprue, such as loading new inserts by robot (3)
  • Dropping rubber parts and sprue into separate containers by robot (3)

Fully Automated Production Cell

1 Transfer station rubber molds
2 Material logistics ( inserts, parts, sprue)
3 Robot article handling
4 Demolding station
5 Robot mold handling
6 Rubber injection molding machine
7 Heating station (8-way)
8 Protective fence

Production Cell

Example

Production of cylinder head gaskets

Purpose

Production of cylinder head gaskets
(for different variants)

Process steps

  • Provision of inserts in a stack of 120 parts
  • Automatic gripping one part and checking thickness
  • Heating part to needed temperature
  • Injection process
  • Checking molded part
  • Cooling to room temperature
  • Punching sprue
  • Checking punched part
  • Loading finished parts to output stack

Fully Automated Production Cell

1 Main Control and protective fence
2 Input and Output station
3 Robot article handling
4 Gripper exchange
5 Heating station
6 Rubber injection molding machine
7 Camera station
8 Cooling station
9 Punching machine
10 Bad part separation

Layout Robotized hose cell

A Vision ready to Market

Example

Drain Tube production cell

Different part variants possible

Fully Automated Drain Tube Production Cell

MODULAR PRODUCTION CELL

TRIMMING MACHINE

SMART AND EFFECTIVE LWB‘S MODULAR TRIMMING MACHINE

LWB’s trimming machines are available in a variety of configurations:

1. PNEUMATIC OR ELECTRIC

A fixed stand serves as a processing unit. The trimming processes can be executed with up to two fixed pneumatic or electric trimming units. A reconfiguration to a different product version requires manual adjustment of trimming diameter, height and angle. The remaining material waste is transferred into a collection container through a waste chute. After completion of the trimming points, the part is pushed off the spindle by an ejector. Upgradable with low effort and modular construction of these machines it easy for any machine to be retrofitted with a robot trimming unit.

2. ROBOT

A fixed stand with a 6-axis robot serves as the processing unit. The robot arm is fitted with a knife, which can execute up to 4 trimming processes per part. Another advantage of this option is the integrated recipe management routine, which records the programmed values for each article and allows them to be called up at any time. The remaining material waste is transferred into a collection container through a waste chute. After completion of the trimming points, the part is pushed off the spindle by an ejector.

TECHNICAL DATA OF LWB TRIMMING MACHINE

  • Automated trimming process on rotationally symmetrical parts with up to four trimming positions per part
  • Possible diameter range of the parts to be: 20–200mm (deviations on request)
  • Possible gasket height: 5–25mm (deviations on request)
  • Average cycle time: 10 seconds/part in case of 2 trimming processes
  • Down-holder device to fix parts on spindle or to hold them with a vacuum
  • Manual, partly or fully automated feeding of parts is possible
  • Ergonomic version of the machine
  • Short set-up times
  • Recipe managment allows the recording of programmed article-specific values for up to 200 formulations
  • Welded basic framework with levelling support feet and an aluminium table top
  • Machine dimensions approx. 1200 x 1200 x 2200mm
  • Doors at three sides of the machine ensure good accessibility
  • Process-safe separation of sprue and finished parts including collection in separate collection containers
  • Conveyor belt with adjustable guide rails, separation function, centering and presencedetecting sensors for the supply of parts
  • 2-axis handling with 90° turning unit for picking up parts from the conveyor belt and insertion in the trimming spindle
  • Horizontal rotation spindle driven by toothed belts
  • Specific part adaptor including vacuum function
  • Conveyor belt for unloading of final parts
  • Blade protector