Device for stretching and control the quality of the skin

 

(57) Abstract:

Device for stretching and control the quality of the skin is to light industry and can find application in the leather industry. The device comprises a base, means for fastening the skin in the form of clamps, means for stretching the skin, means to control the stretching system of compressed air under the vehicle and stretching device for controlling stretch marks. Means for stretching the skin contains a push lever that interacts with the pneumatic cylinder. As devices to control stretch marks and skin quality using the air system in the form of pneumatic cylinders connected in pairs with the rear and front clamps. As a means to control the stretching of the skin use a remote control located on the front clamp. To adjust the stroke of the pneumatic cylinder that communicates with pressure lever, use the nut. This device allows to detect defects of the skin when it is stretched, namely to control the quality of the skin. 1 C.p. f-crystals, 2 Il.

The invention relates to light industry, namely, devices for stretching and control over the quality of the skin, and may find wide application in cogenerative bating and stretching plate products mostly tanned hides or skins, with the two facing each other of the flexible tape, is placed with the possibility of their simultaneous movement together with located between the plate product in a direction parallel to the plane of the tapes, at least one pair of parallel processing boards, installed on the outer surfaces of flexible webs, and one of the handle plates carries on its working surface of the rigid elements of the working tool, the second processing plate has a flat rigid support and at least one of these parallel processing boards installed with the possibility of reciprocating circular movement in the direction perpendicular to the plane of the flexible tape, between the maximum and minimum distance relative to the second processing plate, and a flat rigid support second manufacturing plate fixed continuous uniform layer of providermessage material, having a thickness equal to at least the difference between the maximum and minimum distances between parallel processing plates, and the hard elements of the working tool is made spherical with radius of curvature bestno device for determination of physical and mechanical properties of the skin, contains a vibration sensor, consisting of rolling stock and fixed power coil, permanent magnet, magnetic suspension system, the measuring coil and the metal plate, and it has the power indenter mounted on the lower end of the rod and constituting a permanent magnet of cylindrical shape, and supporting the indenter made of a permanent magnet of cylindrical shape, coaxially mounted with him and placed in the upper part of the axis, with the possibility of vertical movement relative to the guide Cup and rigidly connected with a metal plate with its back side, with the metal plate has a circular hole, the diameter of which is equal to the diameters of the holes, made in the centre of the base body vibration transducer and guide glass (EN 2138803 C1, 27.09.1999).

It is known a device for stretching skins, containing two conveyor blade to supply subjected to the processing of hides and skins in the zone of impact of bilateral percussion mechanism providing a mechanical effect on the skin due to the reciprocating movement of the percussion elements. The reciprocating movement of the percussion elements provided rotations the ical solution is a device for stretching and control the quality of the skin, containing the base, a rack, means for stretching skins, means for fastening the skins, means to control the stretching device to control stretch marks, and with the aim of improving the uniformity of multiaxial stretching spinal and side portions, the base is made in the form of a table mounted on the uprights, means for stretching consists of a flexible rubber sheet attached to the table, and systems compressed air under the rubber fabric, means for fastening the skins is pressing, made in the form of a hollow cylinder oval cross-section, and a hydraulic actuator mounted on the racks, and a device to control stretch marks contains the sensor, made in the form of a spring-loaded disk - limiter installed in the center of the clamp over the rubber blade, and kinematically associated with the compressed air (SU 885261 A1, 30.11.1981).

The disadvantage of the above devices is the inability to control the defects of the skin revealed by her stretching.

The technical result achieved by using the proposed technical solutions is adjustable stretching of the skin and the ability to detect defects of the skin when it is stretched, then etroite for stretching and control the quality of the skin, containing the base, means for fastening the skin in the form of a clip, means for stretching the skin, means to control the stretching system of compressed air under the vehicle and stretching device to control stretch marks, according to the invention the means for fastening the skin contains an additional clamp, means for stretching the skin contains a push lever that interacts with the cylinder, and as devices to control stretch marks and skin quality using the air system in the form of pneumatic cylinders connected in pairs with the rear and front clamps, and as a means to control the stretching of the skin use a remote control located on the front clip.

To adjust the stroke of the pneumatic cylinder that communicates with pressure lever, use a nut.

The invention is illustrated in the drawing, where Fig. 1 shows a diagram of the device, front view; Fig. 2 - section a-a in Fig. 1.

The device consists of the following main parts: the base 1 with installed four cylinders 2 are connected in pairs with the front 3 and rear 4 clamps serving to secure the skin relative to the supports 5 of the base 1, the pneumatic cylinder 6, restage the lower end of the rod 11 of the cylinder 6, designed to adjust the stroke of the cylinder and consequently the degree of stretching of the skin, pnevmoschetki with remote control 12, which provides semi-automatic cycle operation.

The device operates as follows. Cut the leather is laid by hand on a support 5 of the base 1 and the upper part of the profile frame 7, the clamps 3 and 4 are in the top position, and the frame 7 is in the lower position. When pressed on the remote control device 12 at the same time two hands, the left and right buttons of the clamps 3 and 4 from the pneumatic cylinder 2 is moved down and pressed skin to the supports 5. Only after this pnevmochambe device gives a command to actuate the pneumatic cylinder 6, which by means of the lever 8 raises the frame 7 is stretching of the skin on the value predetermined by the setting of the nut 10. Performed visual inspection of the skin marked defects. After pressing the Central button of the clamps 3 and 4 are raised up, and the frame 7 is lowered down. The device comes in its original state.

The availability of the profile frame 7, associated with the lever 8, rotating on the axis 9 and communicating with the cylinder 6 with pre-adjustable speed by means of the nuts 10 and respectively define in advance the necessary degree of stretching whether the proposed solution allows to determine the quality of the skin, the presence or absence of defects without expensive equipment and long-term tests, in addition, in advance of the identified defects to avoid significant losses of expensive leather and significantly affect quality products when using the tested samples of the skin.

1. Device for stretching and control the quality of the skin, containing a base, means for fastening the skin in the form of a clip, means for stretching the skin, means to control the stretching system of compressed air under the vehicle and stretching device to control stretch marks, characterized in that the means for fastening the skin contains an additional clamp, means for stretching the skin contains a push lever that interacts with the cylinder, and as devices to control stretch marks and skin quality using the air system in the form of pneumatic cylinders connected in pairs with the rear and front clamps and as a means to control the stretching of the skin use a remote control located on the front clip.

2. The device under item 1, characterized in that for adjusting the stroke of the pneumatic cylinder that communicates with pressure lever, use the nut.

 

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FIELD: bird skin dressing processes.

SUBSTANCE: method involves strictly observing succession of performing operations for preliminary processing of skins including steps of bird skinning in single sheet by cutting it along line running from region above beak on upper side of head and spine line to tail base; impregnating feather cover with absorbing powder; degreasing and cleaning skin by scraping with obtuse-angled knife from tail to head while adding absorbing powder; washing skin in detergent solution and adding washing degreasing means; drying skins in desiccant powder medium; knocking out desiccant powder from skin by means of spade; fixing skin by means of pins and preserving with the use of acidic-saline solution. Starch is used as absorbing powder and desiccant powder. Wide range of aquatic bird skins are suitable with regard to strength of flesh side, density, strength and beauty of color of bird's feather cover for dressing into fur articles. Method allows settling of fat and other contaminants onto feather cover to be prevented and bird skin drying process to be performed under predetermined conditions with the use of starch as absorbing powder and desiccant for imparting initial appearance to dressed feather cover with regard to direction of feathers and natural color.

EFFECT: increased physical-mechanical properties of dressed bird skin as compared to skins of fur animals dressed by way of standard processes.

11 dwg

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