SU761565A1 - Unit for hide treatment - Google Patents

Description

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INVENTIONS battle of the Soviet Socialist Republics

USSR State Committee for Inventions and Discoveries

BY AUTHOR TO COMMITMENT (61) Additional to author. certificate-wu - (22) Declared 30.12.77 (21) 2559012 / 24-06 with the addition of application No. - (23) Priority - (43) Published on 09/07/80. Bulletin No. 33 (45) Date of publication of the description 07.09.80 (51) M. Kl. ³

C 14 V 1/58 C 14 V 1/44 Ρ 26 V 15/04 (53) UDC 675.025.028 (088.8) (72)

A. I. Komissarov, V. I. Blinnikov and V. L. Chekmarev (71) Applicant

All-Union Scientific Research Institute of Fur Industry (54) INSTALLATION FOR PROCESSING SKINS

The invention relates to devices for processing fur skins in the operations of drying, grading and breaking up and can be used in the fur industry.

Known installation for processing skins containing a drive shaft with a device for attaching to it the processed skins and heat sources [1].

The disadvantages of the known installations are the impossibility of processing the center of the skin, since it is located under the fastening device made in the form of two spherical disks, as well as the inability to provide adjustment of the skin clamp and compensation of axial loads from the skin. In addition, the device for breaking structurally does not provide cleaning the skin surface of the skin.

The aim of the invention is to improve the quality of processing.

This goal is achieved in that the device for attaching the skin on the shaft is made in the form of two pairs of upper and lower spring-loaded U-shaped clamping brackets, the corresponding pairs of which are mounted crosswise, with the lower brackets mounted on the shaft and provided with guides, and the upper have rollers included in these guides, and the axis of rotation of the rollers of each pair are mutually perpendicular.

In addition, the guides have a width of 5 times greater than the width of the roller by an amount equal to twice the thickness of the knife skin of the skin, and the installation itself contains a knife, in the form of a spring-loaded segment, mounted at an angle to the plane of rotation of the skin 10 with the possibility of reciprocating movement along its surface .

In FIG. 1 schematically depicts the described installation in cross section; 15 in FIG. 2 - a device for attaching skins to the shaft; in FIG. 3 - a device for attaching skins to the shaft; in FIG. 4 schematically shows a knife.

Installation for processing hides contains 20 shaft 1, enclosed in a casing 2, in which a pneumocylinder 3 with a rotating rod 4 is mounted coaxially with the shaft 1. At the ends of the shaft 1 and the rod 4 is mounted without rotation on mobile machines 5 equipped with springs 6, a device 7 for attaching the skins to the shaft 1, made in the form of two pairs of upper 8 and lower 9 spring-loaded U-shaped clamping brackets, the corresponding pairs of which are mounted crosswise.

Moreover, the lower brackets 9 are mounted on the shaft 1 and provided with guides 10, and the upper 8 have rollers 11 included in the guides 10, and the axis of rotation of the rollers 11 of each pair are mutually perpendicular. Moreover, the guides 10 have a width exceeding the width of the roller AND by an amount equal to twice the thickness of the skin tissue of the skin. The installation is equipped with a knife 12, made in the form of a segment 13, connected by means of a spring 14 and movable without rotation of the cage 15 with a nut 16, covering a screw 17 with a drive and fixed by means of a guide 18, mounted radially in the plane of rotation of the shaft 1, to the casing 2. Moreover, the segment 13 is mounted at an angle to the plane of rotation of the skin, and the guide 18 is mounted on the casing 2 at such a level that the segment 13 is in the plane of interaction of the upper 8 and lower 9 pairs of brackets of the device 7 for attaching the skin to the shaft.

On the casing 2, a drying device 19 is mounted radially relative to the plane of rotation of the shaft 1, mounted above the plane of interaction of the upper 8 and lower 9 pairs of brackets of the device 7 for attaching the skins to the shaft. The drying device 19 is made, for example, in the form of sources of infrared radiation 20. The installation is equipped with limit switches 21.

The installation is as follows.

Wet skin is laid with hair center down on the lower pair of staples 9 of device 7 for attaching the skin to the shaft. They include a pneumatic cylinder 3, a rotating rod 4, moving by a certain amount, compresses the springs 6, which through the glasses 5 act on the upper 8 and lower 9 pairs of brackets of the device 7 for attaching the skins to the shaft. In this case, the rollers 11 of the upper pair of brackets 8, go into the grooves of the guide 10 of the lower pair of brackets 9 and clamp the skin in them.

Next include a shaft drive 1, the rotation of which through the glasses 5 and the device 7 for attaching the skin on the shaft is transmitted to the skin. This receives rotation and the rod 4 of the pneumatic cylinder 3.

When the skin reaches a predetermined speed and straightens in the plane of rotation of the shaft 1, the infrared radiation sources 20 of the drying device 19 are turned on. Under the influence of radiation, the skin tissue of the rotating skin begins to dry, and the skin sections from the center to the periphery are exposed to infrared radiation with a rotation speed of skins.

At the same time, the drive of the screw 17 of the knife 12 is turned on. The screw 17 moves the nut 16 along the guide 18, which, through the ferrule 15, moves the pointed segment 13 along the radius of the rotating skin, acting on the segment 13, and through it also on the ferrule 15, which comprise the centrifugal forces acting on the skin compress the spring 14, thereby creating a breaking force. The skin sections, running at a peripheral speed at an angle to the pointed segment 13, form a fold, due to which the skin tissue is broken up, softened. In this case, the sharp edge of the segment 13 cleans the skin tissue. The reciprocating movement of the knife 12 is provided by limit switches 21, which are electrically connected to the drive of the screw 17, while pressing the nut 16 on any of the switches 21 changes the direction of rotation of the screw 17.

The operation of the device for processing hides continues until the drying of the skins. Then the knife drive 12 is turned off, the shaft drive 1 is turned off, and after it is stopped, the pneumatic cylinder 3 is turned off, which removes the upper 8 and lower 9 pairs of staples from the interaction, freeing the skin.

The use of the described installation will allow four processes to be carried out jointly: drying, setting, breaking and cleaning of the skin surface of the skin. This will increase the quality of the finished semi-finished product, increase the yield of its usable area.

Claims (3)

Claim 1. Installation for processing hides, containing a drive shaft with a device for attaching the treated hides and heat sources, characterized in that, in order to improve the quality of processing, the device for attaching hides on the shaft is made in the form of two pairs of upper and lower spring-loaded П- shaped brackets, the corresponding pairs of which are mounted crosswise, with the lower brackets mounted on the shaft and provided with guides, and the upper brackets have rollers included in these guides, and the axes of rotation of the rollers of each pair are located zaimno perpendicular. 2. Installation according to π. 1, characterized in that the guides have a width exceeding the width of the roller by an amount equal to twice the thickness of the skin tissue of the skin. 3. Installation according to π. 1, characterized in that it contains a knife in the form of a spring-loaded segment, mounted at an angle to the plane of rotation of the skin with the possibility of reciprocating motion along its surface.