By using the unique KW clamping system, which totally eliminates platen deflection, perfect parallelism is guaranteed whilst accommodating especially extended opening strokes.
Platen movement by direct drive satellite roller recirculation screws, ensure high load capacity and improved performance.
The machine reliability and rationality is enhanced by reduced footprint, water cooled sealed brushless motors, and hence mould area free of any contaminants.
Original BMB technology demonstrating a completely innovative functional approach. The injection unit incorporates a satellite roller recirculation screw with a high load capacity that works in an oil bath.
The plasticization and injection movements are driven by two coupled synchronous motors: the first one makes the injection movement, the second one the screw rotation movement. Directly connected without any intermediate transmission unit. As a result, the direct torque drives avoid any power loss and ensure low wear.
As the drives are water cooled, rapid cycle times are achieved and accuracy and total reproducibility are assured without any overheating.
All the BMB machines motors and mechanical functions are controlled by a special CNC numeric control system originally developed for the machine tool industry but customized and perfected for BMB full electric machines to ensure ultimate performance with total safety. The drives recover the braking energy thereby increasing the energy efficiency of the system.
The system is completely integrated for the setting and control functions, making it easy to reach the parameters set for all the cycle values. The setting procedure is considerably simplified requiring only three values to be input i.e. position, speed and pressure.
All set parameters have a finite control with acceleration and deceleration automatically adjusted.
BMB is actively involved in the scenario Factory 4.0 with systems that make machines “intelligent communicating entities” even remotely, integration with IT and ITC world.
The remote assistance service allows interventions on the control system in real time through a TPC / IP company network connection and an Internet connection. The content of the of the machine control system screen page can in fact be viewed and edited remotely by PC workstations and other devices.
By using the special KW clamping system, platen deflection is eliminated, perfect parallelism is ensured and longer opening strokes are an additional bonus.
Platen movement is by special satellite roller recirculation screws, with direct in line drives that ensure high load capacity and better performance.
The machine reliability and rationality is enhanced by reduced footprint, brushless motors, liquid cooled and optimum cleanliness of the mould area.
The injection piston, perfectly balanced hydraulically, is connected directly to the plasticizing screw and rotates during the dosing phase.
This technical solution avoids the use of wear items such as thrust bearings, usually fitted inside the piston and further, the application of the Torque motor for the screw rotation on the same axis of the piston itself excludes any additional mechanical parts, such as gears and belts.
The injection phase is controlled via a Moog servo valve and a hydraulic accumulator system.
All the BMB machines motors and hydraulic-mechanical functions are controlled by a special CNC machine tool numeric system perfected in the company to ensure the best performance in total safety. The drivers, which are interconnected and interact in real time and recover the braking energy, increase the energy efficiency of the system.
The system is completely integrated for the setting and control functions, making it easy to reach the parameters set for all the cycle values. The setting procedure is considerably simplified requiring only three values of position, speed and force to be set.
The IT intelligence manages perfectly all operational requirements, reaching quotas set accurately and automatically adjusts acceleration and deceleration.
Remote assistance allows diagnosis and interventions on the injection molding machines control system. Communication with eKW Series machines uses a network connection via TCP / IP software installed on the PC that will communicate with the machine.
In moulding departments this means information accessibility in “real time” on the machine movements and performance with the possibility of intervening, if necessary, on the working parameters and modify them instantly.
Monitoring the moulding parameters centrally, you can get details on the machines operation, control its performance, receive sms or e-mail on your smartphone in case of alarm, with detailed description of these anomalies.
Acquiring the production data for each shot, at a central level, it is possible to meet the ISO standards, related to the quality and traceability of each piece control, produced by the machine, which is critical not only for the pharmaceutical and food sectors, but currently for each application area.
A machine that globally confirms the benefits of “full electric” technology, resulting in a combination of advantages i.e. increasing production rates whilst achieving cost reductions, the highest part quality and the lowest noise levels
All these benefits are possible thanks to electric drives working totally independent of each other, thereby allowing ‘overlapping’ of functions whilst being extremely precise, due to the finite control of position and speed.
Characterized by an innovative double five-point toggle design, the moving platen incorporates self- lubricating bushes and is supported on platen shoes incorporating roller bearings. The platen is guided via tie-bars that are tempered and chrome plated. The toggle pins are hardened and tempered with the bushes being manufactured from high resistance bronze.
Centralized grease lubrication system, both for the toggle and all the machine ball screws drives.
It is possible to set the mould safety with a specific number of attempts to close and then to alarm out so that intervention procedures can be carried out.
Ejector with rapid connection, available in a wide choice of operating modes.
Clamping force self regulation by means of a loading cell fitted on the toggle. The actual clamping force is indicated on the screen and can be used as a quality control feature.
The injection unit is based on a ball screw with a high load capacity and two independent motors for the activation of all stages of the injection process with back pressure force controlled via an absolute loading cell.
The screw and barrel ‘quick-change’ facilitates easy substitution.
The temperature stabilization feature ensures that the screw can rotate only when the material temperature is homogeneous throughout the cylinder.
The injection profiles of post-pressure and plasticizing are divided and independently adjustable in steps from 1 to 8.
Plasticization start can be delayed, whilst suck back can take place before or after dosing and overlapped during mould opening.
The universally recognized and admired KW clamping system, that due to its unique design combines the best features of a traditional toggle mechanism and a direct hydraulic clamp system with its linkages that bends outwards during the opening phase.
With this design greater opening and closing speeds are achievable with perfect parallelism assured. In addition, longer opening strokes and zero deflection of the platens are inherent features.
The particular geometry of the toggle mechanism means that the clamping force is not only applied to the centre of the mould but is uniform over the whole surface of the mould.
The injection piston, which is perfectly balanced in oil-hydraulic terms, is directly connected to the plasticizing screw and rotates during the dosing phase.
This solution is used to eliminate the necessity of wear parts such as thrust bearings, which are normally mounted on the piston,
Application of a motor for screw rotation, is on the same axis of the piston for better performance.
The Moog servo-valve that works in a closed loop for speed and pressure, perfectly controls the filling phase and hold phases.
A series of well-respected machines in the market sector for the production of thin wall products and very high outputs.
With specific technological solutions, developed directly in conjunction with the packaging industry and engineered to combine accuracy, repeatability and competitiveness. i.e. hydraulic valve blocks mounted directly on function to be controlled, servo and proportional valves working in closed loop for speed and pressure; quick replacement of the plasticizing unit; hydraulic or electric Torque motor direct in line for screw rotation, magnetostrictive transducers on all movements and a central hydraulic accumulator system for all the machine phases, fully-closed hydraulic system with sound-absorbing panels for total noise elimination.
The injection piston, which is perfectly balanced in oil-hydraulic terms, is directly linked to the plasticizing screw that rotates du- ring the dosing phase.
This solution is used to eliminate the necessity of wear parts such as thrust bearings, which are normally mounted on the piston, and by the application of a motor for the screw rotations, on the same axis of the piston for better performance.
The Moog servo-valve that works in a closed loop for speed and pressure perfectly controls the filling phase and the maintenance phase, ensuring speed, precision and repetition.
The injection group benefits from the entire project. In fact, other than having an excellent length/diameter ratio for better homo- geneous mix of the material and greater plasticisation, it was de- signed for rapid replacement; an ideal solution for anyone who processes diferent materials and wants to reduce time and waste due to production start-up.
Being equipped with 2 long stroke pistons designed for rapid movements, the stability of the KX clamp unit is guaranteed as the lower tie bars are supported by the 2 long robust sliding blocks ensuring smooth movements and perfect parallelism even with deep draw heavy moulds.
The actual final clamp is applied by 4 high pressure pistons with each one being independently
controlled via servo valves and proximity switches to ensure synchronized operation.
It is estimated that more than 20% of world production of plastic is for the automobile industry. In recent years we have witnessed a strong activity in the substitution of metal components in favour of plastic.
BMB is able to tailor our machines suit exactly the finished product, such as bumpers, dash boards, head lights and “under bonnet” components.
The introduction of new resins with higher wear resistance and improved thermal and mechanical properties has widened the potential of “under bonnet” thermoplastic products, be they motor components, tans or radiators.
The automotive industry is constantly evolving and constantly demands components that can reduce the final assembly time. Another requirement is to produce components incorporating additional features such as moulded in seals to absorb vibrations and reduce noise levels during the vehicle running and multiple colours or materials to enhance design features.
We have therefore designed systems optimized for every need for example:
• components with different moulded materials or inserts.
• gas injection.
• rotary tables or ‘core back’ technology
Typically, high volumes at low production costs are the pre-requisites in the manufacture of caps and closures.
Therefore, machine performance and reliability are key factors to enable cost effective production.
With a vast amount of experience amassed over the years, BMB is able to guide the customer to make the right choice to meet any production need.
This type of closure has become increasingly more popular in every-day use both for personal hygiene such as shampoos, lotions, cosmetics etc. and also for containers for the household cleaning detergents.
It is a basic article requiring high technology.
The BMB control system allows the programming in a simple and effective way any moulding sequence, even the most complex. Any hydraulic, pneumatic or electric movement can be freely set to work in a perfectly coordinated sequence.
The use of machines with two or more injection groups allows the realization of complex caps and closures with modern and attractive design.