The hottest Italian made vertical injection machin

Italian made vertical injection machines

although the market share of vertical injection machines is small, Italian manufacturers in this field are still constantly developing new models to provide machines with faster processing speed and ensure the reliability and repeatability of each processing cycle. This paper briefly introduces the vertical injection machines produced by three Italian manufacturers

in the field of multiple injection molding, which is an advanced technology, quality has been the main competitive factor for a long time. Using vertical injection machine in this field can achieve good results in both quality and economy

omf turra specializes in producing this kind of equipment for multiple injection molding belts with various inserts (the most typical example is the electric plug). They can now provide different models of the output results of the electronic universal tensile machine, mainly in two categories: cigno and Pascal

there are 4 models in each category, which are suitable for injection molding products with inserts in a wide range from small and medium-sized to large-sized, and can be loaded manually or automatically. The bridge structure is adopted, so that there is a large space between the pull rods, which makes the machine more widely used, and large molds or inserts can be installed. A vertical template can be set at the base of the rotating workbench, so the machine can be used in conjunction with the loading/unloading robot or mechanism for injection molding auxiliary operation. The clamping mechanism is novel in design and adopts a bidirectional moving template, which makes the large-scale rotary table lightweight, so that it can rotate and position quickly. The workbench rotates clockwise and can be divided into a fixed number of stations

the mold closing device performs two movements: the upper bridge lifts and opens the mold, and the lower mold falls about 10 mm to rotate; Two models (FTV 30/20 and 60/40) are completed by the transmission connecting rod, and the other two models (FTV 800/380 and 1200/450) are completed by the double piston cylinder. The clamping force is in the range of 180 to 1200 kn

pascal is composed of three models, which can be assembled with linear angular motion external workbench, two half mold or rotating mold and different number of workstations (set as required). It is equipped with a support, the front can move back and forth, and multiple injection molding is carried out with a single mold. When closing the mold, the upper half mold drops, so as to minimize the mold movement to stabilize the insert

two concentric pistons are used for mold closing: a small piston in the center is used for rapid opening and closing, and the external piston with large diameter generates mold closing force. Now it is widely recognized that using an external workbench is the best way to shorten the cycle time, because inserts can be placed during molding, which can increase productivity by 50%. The advantage of the angular motion linear table system is that the distance between loading/unloading insert molds is shortened, so that the operator does not have to move from one side of the machine to the other

these machines can be operated manually or automatically by operators, with versatility. In automatic operation, it can be transformed into a real machining center. In addition to injection molding operations, it can also manage other operations, such as product handling, loading/unloading and quality control

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the rubber molding industry is developing slowly, but it is developing steadily. Although there has been no revolutionary progress in recent years from a technical point of view, it is still moving towards two basic goals at a small pace: improving product quality and reducing costs. These goals can be achieved only through continuous and stable development and through analysis and optimization of rubber compound, molding equipment (vulcanization plate and mold) and auxiliary equipment used

in terms of plate molding, terenzio produces two series of vertical vulcanizers with a wide range of foaming agents that are most widely used: frame and pull rod plate vulcanizers that are closed from the top (GS and BS) and from the bottom (GI and BI). The clamping force of these models is between 1300 and 12000 kn, and one or more operation rooms and optional devices can be configured, including demoulders (single and multiple, internal or external, upper or lower), the middle frame for processing multi template molds, and the workbench conveyor mechanism for heating and tilting the upper half mold to facilitate loading and unloading operations

a 5000 kn flat plate with translational double lower worktable (2000x800 mm) with two lower molds has been used to produce gaskets for heat exchangers. In this way, when the vulcanized gasket is removed from one half mold, vulcanization is being carried out in the other half mold. Obviously, its advantage is that it can reduce costs and improve the production efficiency of the factory. When you want to mold this kind of gasket with large specification, you can choose the GS frame top mold closing 8000-kn vulcanizer, which has two workshops and two 30000x1200 mm worktables. In this special case, two operators operate on two movable platforms arranged back and forth behind the machine, one loading materials and the other taking out the production port. The movement of the platform is synchronized with the vulcanizer, so the ergonomic operation height can always be maintained in the workshop

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Sintesi PV series vertical injection machine is designed by BM biraghi to inject products with inserts. There are three models that can be used to process thermoplastic, but after appropriate transformation, it can also be used to process thermosetting plastics, rubber and LSR (liquid silicone rubber). The clamping mechanism is vertical, but the injection mechanism has vertical (PVV type) and horizontal (PVH type). The movable formwork is driven by 4 pull rods, which are arranged to make the rotary table easy to use. The rotary operation table can be divided into 2, 3 or 4 stations. The machine equipped with horizontal injection mechanism is equipped with a simple mechanical system to adjust the height of the injection nozzle when the mold is aligned

two small hydraulic cylinders quickly push the two templates close, while the mold closing is completed by two large hydraulic cylinders with circular section placed under the fixed template and pressurized by the main pump. The operation area for positioning inserts and taking out molded parts is equipped with a hydraulic ejector, which can move with the dynamic weight valve of other parts. The equipment is very easy to refit and can be equipped with auxiliary equipment for processing inserts and molded parts

claudio celata is the publisher of macplas magazine and the managing director of the Italian Association of plastic and rubber machinery equipment and mold manufacturers (as takes the average value of socomplast)

originally published "China plastic and rubber" (end)