摘要:
In a filleting machine for fish for the production of fillets entirely free of bones and including the belly flaps the tail portions of the fillets are cut free by means of belly filleting knives, back filleting knives and separating knives, the fillets fall down with their tail ends, the back portions of the fillets are cut free by means of back filleting knives and upper pinbone knives and are engaged to drop down, adhering to the belly portions of the fish only at the end of the belly, these adhering portions of the fillets are pressed down by hold down means meanwhile lower pinbone knives are cutting into the fish through the skin portion situated between the upper and the lower pinbone cuts and are cutting free the belly flaps, which will be separated from the skeleton of the fish by means of rib knives, and the strips containing the pinbones are separated from the skeleton by means of strip cutting knives.
摘要:
An apparatus forming part of a filletting machine for removing meat from the skeleton of fish in the region of the ribs is described, through which the fish are conveyed with their tails leading and guided by guides which penetrate into cuts already performed for cutting free the belly and back spokes. The removal of meat from the ribs is performed by means of a tool, which comprises a scraping knife arranged on each side of the belly-cut guides and exending in a plane which forms an angle of between 10.degree. and 50.degree. with the guidance plane defined by the belly-cut and back-cut guides.
摘要:
The invention relates to an apparatus for gaining boneless fish fillets. In a fish filleting machine which processes the fish being conveyed tail first and comprises a belly and back filleting toot, and a severing tool for releasing meat bands on either side of the spinal column in the tail region, a pinbone tool is arranged between the two first-mentioned tools, this pinbone tool comprising circular knives between which a graving knife is arranged for severing the meat strip containing the pinbones immediately after this strip has been cut free.
摘要:
A method for severing the heads from fish makes a better yield of fish flesh supplied for human consumption possible. In this method the supracleithra forming the connection between the head skeleton and the shoulder girdle arcs are split off after the gill cavity has been opened ventrally by cutting through the isthmus and finally the head is pulled from the rump in a position where it is jack-knifed towards the nape of the neck.
摘要:
The invention concerns a decapitating apparatus for fish in which the fish to be processed is conveyed by entrainers essentially transverse to its axis and by fixing its longitudinal position by a holding element engaging the eye-hole and accompanying the fish. For adjusting the holding element a guide bar is arranged for engaging the holding element in a guiding manner in the region of a severing device performing a wedge-shaped decapitating cut and for displacing the holding element resiliently out of its path of movement.
摘要:
The invention concerns an apparatus for removing a surface layer from fish fillets. To permit the apparatus to operate with high precision and optimal yield for a large variety of fish species it comprises an entrainer roller which serves as a conveying surface and a pressing shoe having a pressing surface spaced from the outer surface of the entrainer roller by a gap. The pressing shoe comprises a guide for an endless belt knife. Pressing means in the form of a plurality of driven pressing rollers are arranged in an area directly above the cutting edge of the knife to act on the knife as the fish fillets are processed. The pressing rollers are mounted to rotate with two degrees of freedom thus permiting them to exert pressure with maximum surface possible and reliably flatten the fish prior to its arrival at the belt knife.
摘要:
A method for removing wings from poultry bodies and an apparatus for performing the method are described, in which a poultry body held on a conveyor is supplied to a separating mechanism. The latter comprises either two successive separating tools or only a single one. In the first case, the first tool of the two comprises a pair of circular knives arranged symmetrically to the path of the conveyor and which can be moved from the back of the poultry body into the bend between the latter and the humerus of the wing and cuts through the skin and ligaments, as well as the large wing tendons in the region of the body joint. The second separating tool, which, in the second case forms the single tool, comprises a pair of triangular knife blades with rising cutting edges, which continue the previously described cuts, and, if necessary, take over the function of the first tool, said separating process taking place in the joint gap, because, during this action, the wing is held by guide means in the form of a conveyor equipped with clamping entrainers and is drawn away from the poultry body.
摘要:
In a fileting process for fish of the Siluridae species, for instance, catfish (Ictalurus punctatus), the bone plate present in the area of the dorsal fin of these species for supporting the dorsal spike is first undercut from the dorsal area without cutting through its connection to the bone structure, in order to obtain largely trim-free filets. This takes place by means of a cutting tool that makes incisions under the bone plate up to the ventral bones, so that, in the subsequent cutting free of the filet meat from the ventral bones, the outer parts of the bone plate accumulate separately from the filet meat.
摘要:
The invention relates to a method for gaining skin-freebelly flaps of fish and an apparatus for performing such method. In a fish filleting machine which processes the fish being conveyed tail first and comprises a belly and back filleting tool, a rib severing tool designed as a scraping tool, and a severing tool for releasing meat bands on either side of the spinal column in the tail region, a cutting device is arranged between the two first-mentioned tools, and a further severing device is arranged directly behind the rib severing tool. By actuating the latter at the instance of arrival of the belly cavity end, a cutting element thereof, comprising a knife blade, penetrates the fillet meat up to the inside of the skin and, during further advancing of the fish, splits the skin off the meat portions covering the ribs and the lateral vertebral appendages of the skeleton, i.e. off the belly flaps, so that these are obtained skinless after having passed the rib severing tool.
摘要:
An apparatus is disclosed for skinning fish having a skinning roller with which a fixed knife cooperates whose lower surface directed towards the skinning roller is constructed as a presser surface which together with the skinning roller defines a narrow gap. The peripheral surface of the skinning roller is provided with first grooves extending longitudinally which are interrupted by two arrays of second grooves situated approximately in the middle of the two halves of the skinning roller and extending around its periphery. The second grooves have a greater spacing than that of the first grooves.