Sacmi Imola Science | Date: 2017-05-24
A device (1) for unloading and storing preforms (10) for the production of containers made of plastics, comprising at least one cooling plate (2) that defines a plurality of receptacles (3) for respective preforms (10) and means for transferring the still-hot preforms from an injection molding device to the cooling plate (2); the device (1) comprises pick-up means (20) adapted to pick up the preforms (10) from the cooling plate (2) and to place them inside at least one accommodation container (4).
Sacmi Imola Science | Date: 2015-06-17
A system for feeding preforms to a container blow-molding machine includes at least one sorting and alignment device fed with randomly arranged preforms and at least two substantially parallel alignment rollers that can rotate about the respective axes, and arrange the preforms in conveyance tracks inclined with respect to the horizontal. The system further includes elements for removing the incorrectly positioned preforms, which are individually laid flat and arrive from the alignment rollers on the conveyance tracks and are oriented parallel to the longitudinal advancement direction. The removal component includes an upper guide having at least one flow control portion arranged at least in one active blocking position thereof, above the end of the alignment rollers which is proximate to the conveyance tracks distanced from the alignment rollers to allow the passage below the flow control portion of the correctly oriented preforms and block the longitudinal end, which is arranged upstream with respect to the longitudinal advancement direction of the incorrectly oriented preforms when the incorrectly oriented preforms straddle the alignment rollers and the conveyance tracks.
Sacmi Imola Science | Date: 2017-06-14
A machine (1) for labeling containers (10) which comprises a rotating carousel (3) with a lower base (4) which supports a plurality of supporting pans (4a) for the containers (10) and an upper supporting structure (5) for a plurality of heads (5a) which are intended to engage the top portion (10a) of the containers (10), the labeling machine (1) comprising, further, a device (20) for feeding the containers to be labeled (10) to the rotating carousel (3) and a device (30) for unloading the labeled containers (10); the feeding device (20) comprises at least one first device (21) for conveying the containers to be labeled (10) which is provided with first means (22) for supporting the containers to be labeled (10) at the neck (10b); the labeling machine comprises first means (50) for varying the height of the bottom (10c) of the containers to be labeled (10) in order to bring it substantially to the same height as the supporting pans (4a).
Sacmi Imola Science | Date: 2017-04-26
A system (1) for feeding preforms (10) to a container blow-molding machine (20), which comprises, in sequence along a longitudinal advancement direction (100) of the preforms (10), at least one sorting and alignment device (2) which is fed with randomly arranged preforms and comprises at least two alignment rollers (3a, 3b) which are substantially parallel, can rotate about the respective axes (101, 102) and are intended to arrange the preforms in conveyance tracks (4a, 4b) which are inclined with respect to the horizontal, in order to feed them to the blow-molding machine (20), the system (1) comprising means (30) for removing the incorrectly positioned preforms, which are individually laid flat and arrive from the alignment rollers (3a, 3b) on the conveyance tracks (4a, 4b) and are oriented parallel to the longitudinal advancement direction (100); the removal means (30) comprise an upper guide (31) which has at least one flow control portion (31a) which is arranged, at least in one active blocking position thereof, above the end of the alignment rollers (3 a, 3b) which is proximate to the conveyance tracks (4a, 4b) at a distance from the alignment rollers (3a, 3b) which is such as to allow the passage below the flow control portion (31a) of the correctly oriented preforms (10) and block the longitudinal end, which is arranged upstream with respect to the longitudinal advancement direction (100), of the incorrectly oriented preforms (10) when the incorrectly oriented preforms straddle the alignment rollers (3a, 3b) and the conveyance tracks (4a, 4b), the removal means (30) comprising means (35) for unloading the incorrectly oriented preforms which are blocked by the flow control portion (31a).
Bosi F.,University of Trento |
Piccolroaz A.,University of Trento |
Gei M.,University of Trento |
Corso F.D.,University of Trento |
And 2 more authors.
Journal of the European Ceramic Society | Year: 2014
Mechanical experiments have been designed and performed to investigate the elasto-plastic behaviour of green bodies formed from an aluminum silicate spray dried powder used for tiles production. Experiments have been executed on samples obtained from cold compaction into a cylindrical mould and include: uniaxial strain, equi-biaxial flexure and high-pressure triaxial compression/extension tests. Two types of powders have been used to realize the green body samples, differing in the values of water content, which have been taken equal to those usually employed in the industrial forming of traditional ceramics. Yielding of the green body during compaction has been characterized in terms of yield surface shape, failure envelope, and evolution of cohesion and void ratio with the forming pressure, confirming the validity of previously proposed constitutive models for dense materials obtained through cold compaction of granulates. © 2013 Elsevier Ltd.
Gualtieri A.F.,University of Modena and Reggio Emilia |
Riva V.,University of Modena and Reggio Emilia |
Bresciani A.,SACMI IMOLA Science |
Maretti S.,SACMI IMOLA Science |
And 2 more authors.
Journal of Applied Crystallography | Year: 2014
For the first time, this work inspects the accuracy of quantitative phase analysis of both crystalline and amorphous components of stoneware tiles and bricks. A number of variables were considered: the nature of the internal standard, experimental conditions and counting statistics. The so-called G-factor method has also been applied. The results of the X-ray powder diffraction analysis have been compared with the results obtained with optical microscopy and image analysis. Only the mixtures spiked with corundum and silicon yielded accurate weight estimates of the amorphous fraction, whereas the use of highly X-ray absorbing internal standards (such as fluorite, rutile and zincite) resulted in gross underestimations. In fact, microabsorption effects are found to drastically reduce the accuracy of the results when standards with linear X-ray absorption coefficients higher than 100 cm-1 are employed. It was found that very low counting statistics reduced the calculated amorphous fractions in both bricks and stoneware tiles owing to partial masking of the major peak of the internal standard, namely corundum. The application of the G-factor method to the systems investigated was also evaluated. The results are poorer than those obtained using the internal standard. © 2014 International Union of Crystallography.
Collini L.,University of Parma |
Pirondi A.,University of Parma |
Bianchi R.,University of Parma |
Cova M.,Sacmi Imola Science |
Milella P.P.,PPM srl
Procedia Engineering | Year: 2011
In this work the fatigue behaviour of a ferritic ductile iron is experimentally studied on a set of specimens extracted from heavy-duty tile press frames. Specimens are non-standard, with a gage rectangular volume 35mm-wide, 3mm-thick and 160mm-long in order to maximise the volume of material subject to fatigue and the surface/volume ratio, compatibly with testing device in use (Amsler FP 422 axial resonant testing machine), and therefore to promote the crack initiation from a defect. A classical staircase methodology is adopted for the fatigue test. Fracture surfaces are examined post-failure, looking for initiation sites and related features. The fatigue crack propagation is then simulated using FE analysis with the Virtual Crack Closure Technique, starting from the experimentally detected initiation sites and cast defect dimension. In this way, it should be possible to assess whether the fatigue strength of such specimens (and, in turn of large castings) is dominated by the crack propagation phase. © 2011 Published by Elsevier Ltd.
Sacmi Imola Science | Date: 2013-03-18
An apparatus for manufacturing plastic preforms, comprising a rotating carousel forming device for plastic preforms and movement elements adapted to pick up the preforms from the rotating carousel forming device; the movement elements are associated with a supporting structure for a plurality of shaping receptacles, which are mutually spaced and movable along a transfer path, the shaping receptacles being adapted to receive a respective preform directly from the rotating carousel forming device and at an angular pick-up portion which is defined along the circular movement trajectory of the preforms on the rotating carousel forming device.
Sacmi Imola Science | Date: 2014-07-16
An apparatus for printing closure bodies of containers having, a transfer device that is associated in input with a feeder of closure bodies to be printed and in output with an unloader of printed closure bodies. The transfer device defines seats for a respective closure body to be printed which are provided with at least one resting region for at least one abutment portion that is defined on the outer lateral surface of the respective closure body. The seats are mutually spaced at preset distances and movable along a transfer trajectory. The apparatus includes a device for digital printing of the closure bodies to be printed which is arranged along the transfer trajectory).
Sacmi Imola Science | Date: 2014-07-23
A plant for manufacturing and printing cup-shaped bodies having an apparatus for manufacturing cup-shaped bodies that includes at least one portion made of plastics and a device for positioning the cup-shaped bodies manufactured by the apparatus on a transfer device that can move along a longitudinal transfer direction. The cup-shaped bodies rest with their lower edge on a resting surface that is defined by the transfer device with its concavity directed toward the resting surface. The plant includes, along the extension of the longitudinal transfer direction, a device for the digital printing of the cup-shaped bodies, and a component for controlling the position of the top edge of the cup-shaped bodies on the resting surface, the component being connected to the digital printing device.