Coming to terms with sammying and setting / Steve Hodges in WORLD LEATHER, Vol. 15, N° 5 (08-09/2002)  

[article]  inWORLD LEATHER > Vol. 15, N° 5 (08-09/2002) . - p. 19-22 Titre : Coming to terms with sammying and setting Type de document : texte imprimé Auteurs : Steve Hodges, Auteur Année de publication : 2002 Article en page(s) : p. 19-22 Langues : Anglais (eng) Catégories : Cuirs et peaux Cuirs et peaux -- Appareils et matériels Essorage Index. décimale : 675 Technologie du cuir et de la fourrure Résumé : When I first entered the leather industry, it soon became clear that it had a unique vocabulary all of its won. I have yet to learn the origin of the term "sammying" or "samming" for the process of mechanically squeezing the water from a wet hide or skin. "Setting", also sometimes known as "striking out", is a little more straight forward, being the process of mechanically smoothing and spreading a damp (or sammed) hide or skin to set its grain and surface prior to drying. The introduction of machinery to tanneries initially saw separate machines for the two processes, but these have been largely replaced by the combined sammy/sette machine, first in its traditional format working individual hides, but increasingly found now as a through-feed machine. Note de contenu : - Fig. 1 : Conventional sammy/setting machine with foot pedal controls (C.M.) - Fig. 2 : Conventional sammy/setting arrangement - Fig. 3 : Throughfeed machine arrangement with top and bottom felts and downward acting pressure roller (Bauce) - Fig. 4 : Throughfeed sammy/setter for whole wet-blue hides (C.M.) - Fig. 5 : Throughfeed wet blue sammy/setter with inverted pressure roller (Rizzi) - Fig. 6 : Massive bearing housings of a 5-roller, 4-nip throughfeed machine (Bauce) - Fig. 7 : Throughfeed machine arrangement for dyed leather, with two parallel pressure nips, plastic infeed conveyor, and oscillating double setting cylinders (Bauce) - Fig. 8 : Operators feeding dyed hides from a mobile tank into a through feed sammy/setter with stacker (Pittards plc) En ligne : https://drive.google.com/file/d/17Kdi6RUA6sFxxHd8KHi60hYSbq8O5kf2/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=32245 [article]

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New liquid-ice raw hide preservation in Ireland / Steve Hodges in WORLD LEATHER, Vol. 15, N° 5 (08-09/2002)  

[article]  inWORLD LEATHER > Vol. 15, N° 5 (08-09/2002) . - p. 31-36 Titre : New liquid-ice raw hide preservation in Ireland Type de document : texte imprimé Auteurs : Steve Hodges, Auteur Année de publication : 2002 Article en page(s) : p. 31-36 Langues : Anglais (eng) Catégories : Automatisation Cuirs et peaux -- Conservation Cuirs et peaux -- Industrie Peaux brutes Index. décimale : 675 Technologie du cuir et de la fourrure Résumé : The modern, wet blue processing factory of Michell Ireland was opened by the parent Australian compagny G.H. Michell and Sons in 1993 near Portlaw, Country Waterford. It was designed to accept 6,000 fresh hides a week from abattoirs within a 150-mile radius of the plant. The sucess of the enterprise has meant that capacity been steadlily increased, and the plant can now process 10-11,000 hides per week, which represents about 25% of the total Irish kill. As the skill base of the Irish leather industry is quite small, the tannery has had to look worldwide for its employees, and the 80-strong workforce now also includes operators and technicians from the Czech Republic, Brazil and Romania. Although the output of the plant has been substantially increased since its opening, the emphasis in recent years has been on the quality of the wet blue produced. Most of the hides are destined for automotive and furniture upholstery where quality expectation is high, and the plant is approved ti ISO 9002. Anthony Sheehan, Michell Ireland's trading manager, belives that the emphasis on freshly killed hides, put into controlled preservation in the shortest possible time, gives a major advantage in maximising grain quality. The company has invested 1 million euros in automated handling in the last six months, and a major proportion of this has been in fresh hide reception, grading and preservation using the lastest "liquid ice" technology from the Italian automated handling specialist Feltre. The original hide reception system at the plant was based around the arrival of truckloads of fresh hides arriving from the abattoirs in the evening following the day's kill. Tipper trucks backed up to a large external door, then tipped their load of hides onto a lower level concrete floor inside the factory. Operators climbed the heap to work amongst the hides, separating and dragging out individual hides to place on an overhead conveyor with hooks on chains. A cut was made in the hide to accept the hook, and the hide carried along for weighing, trimming and grading, before being put into plastic boxes. Cubed ice from an ice-making machine was shovelled in between the hides, and the boxes moved to a chilled store room until delivery to the liming vessels. The system was labour intensive, and involved hard, physical labour for the workers. Note de contenu : - Fig. 1 : Schematic diagram of hide handling facility - Fig. 2 : First three conveyors of system - Fig. 3 : Operator attaching hides to overhead conveyor - Fig. 4 : Trimming the hide - Fig. 5 : Grader's pushbutton panel - Fig. 6 : Weighing station on overhead conveyor track - Fig. 7 : Dropping points above plastic bins - Fig. 8 : Hide release mechanisms on overhead conveyor - Fig. 9 : Liquid ice blending unit - Fig. 10 : Liquid ice discharge manifold to bin - Fig. 11 : Central computer control panel - Fig. 12 : Control panel data display En ligne : https://drive.google.com/file/d/1HaHlclSyISaZECJGh6pr2mZhXudNVPxe/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=32247 [article]

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Refining 'bucket chemistry' through vessel automation / Steve Hodges in WORLD LEATHER, Vol. 15, N° 4 (06-07/2002)  

[article]  inWORLD LEATHER > Vol. 15, N° 4 (06-07/2002) . - p. 29-34 Titre : Refining 'bucket chemistry' through vessel automation Type de document : texte imprimé Auteurs : Steve Hodges, Auteur Année de publication : 2002 Article en page(s) : p. 29-34 Langues : Anglais (eng) Catégories : Automatisation Cuirs et peaux -- Industrie Index. décimale : 675 Technologie du cuir et de la fourrure Résumé : The wet end of the tannery is probably its most unattractive face - often dirty, noisy and damp, with an odorous and corrosive atmosphere. Technology has been slower to penetrate here than in other more salubrious areas. The wet end, however, is the heart of the tannery, where leather quality is made or lost, and the automation of drums and process vessels should now be regarded as vital for the modern leather-making industry. Note de contenu : - Two routes to follow - The mechanical action - Getting loaded - Adding the chemicals - Semi-robotic pH measurement - Affordable computing - Fig. 1 et 2 : Local drum control panel by Vallero/Incotec, housed in a fully sealed stainless steel cabinet. Pressure-sensitive "pushbuttons" and numeric keys are protected by a heavy clear membrane. - Fig. 3 : Water mixing unit by Dose incorporating linked butterfly valves with pneumatic actuator. - Fig. 4 : Water mixing unit by Olcina with electrically actuated valves. - Fig. 5 : Chemicals in palletised IBCs can be racked to form a "tank farm", with gravity or pump feed to the automated mixing system. - Fig. 6 : Twin chemical mixing stations by Olcina, supplying 32 chemicals to 18 process vessels. - Fig. 7 : Stainless chemical mixing vessel from Vallero, with electric agitator and access hatch. - Fig. 8 : Polypropylene chemical addition holding tank from Italprogetti. - Fig. 9 : Bulk chemical storage in exterior tanks can be linked to the automation system, controlling temperature, monitoring levels and dispensing. - Fig. 10 : Semi-automated pH measurement station from Olcina. The probe is carried from the buffer solution to the sample and back again, via a washing position. - Fig. 11 : The pH probe at the washing position, showing the two water spray nozzles and the splash plate. En ligne : https://drive.google.com/file/d/1DeLvfPAdF6AS4VR7sR8LrvZVJeTPk8us/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=32225 [article]

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Removing the strain - a review of the technology currently available for automated handling in tanneries / Steve Hodges in WORLD LEATHER, Vol. 15, N° 2 (04/2002)  

[article]  inWORLD LEATHER > Vol. 15, N° 2 (04/2002) . - p. 81-85 Titre : Removing the strain - a review of the technology currently available for automated handling in tanneries Type de document : texte imprimé Auteurs : Steve Hodges, Auteur Année de publication : 2002 Article en page(s) : p. 81-85 Langues : Anglais (eng) Catégories : Automatisation Convoyeurs Cuirs et peaux -- Appareils et matériels Cuirs et peaux -- Industrie Index. décimale : 675.2 Préparation du cuir naturel. Tannage Note de contenu : - Fig. 1 : Attaching limed hide to monorail chain conveyor - Fig. 2 : Limed hides moving in transit t flesher - Fig. 3 : Hides presented to fleshing machine - Fig. 4 : 3-position selection stacker with full measurement - Fig. Sammy machine with auto transfer to vacuum drier - Fig. 6 : Conveyor laying hides onto vacuum table - Fig. 7 : Loading overhead conveyor from rollercoater line - Fig. 8 : Modern conventional stacker loading to pallet - Fig. 9 : Vacuum lifting head of sole leather destacker - Fig. 10 : Automated rolling, labelling and stacking to pallet En ligne : https://drive.google.com/file/d/1p-xlfPvEd7HxWjJqzSR52EmsYig6iXXH/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=33933 [article]

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