SU1472513A1 - Apparatus for combing fur pelts - Google Patents

Abstract

The device is intended for use in fur prom. The device contains a working body, made in the form of a holder with a carded tape fixed on it, connected to a swinging lever, and a spring-loaded table for laying sandpaper, which is placed under the working body. The drive of the working body is made in the form of a crank mechanism with two cranks. All connections of the device are hinged, and the axes of symmetry of the hinges of both cranks are crossed at an angle, the axes of symmetry of the connecting rod joints are parallel to each other, and the axes of symmetry of the hinges of the lever are mutually perpendicular. The length of the lever is equal to the ratio of the length of the crank to the sine of the angle of crossing of the axes of symmetry of its hinges between themselves. The crank mechanism is connected to the base, and the second crank to the swing arm, which in turn is also connected to the base. 1 hp f-ly, 6 ill.

Description

. -one

 The invention relates to devices for treating fur skins and can be used in the fur industry.

The purpose of the invention is to simplify, improve the performance and reliability of the structure.

Figure 1 shows the kinematic scheme of the device; figure 2 - crank; on fig.Z - rod; Fig. 4 shows a swinging arm, a slit; figure 5 is the same; figure 6 - the working body of the device.

The goal is achieved by the fact that in the device for combing fur skins, containing a working body, installed in the form of a holder with a carded tape fixed on it, a spring-loaded table for placing the skin to be processed and driving the working body in the form of a crank-connecting rod mechanism with a swinging lever that differs by the fact that the crank mechanism and the rocking lever are pivotally connected by a second crank, on the holder of which is a continuation. finger crank, fixed working body, with the axis of symmetry of the hinges of the cranks crossed at an angle, the axis of symmetry of the hinges of the connecting rod parallel, and the axis of symmetry of the hinge. the lever groove is perpendicular, and the lever length is equal to the ratio of the crank length to the sine of the angle of intersection of the axes of symmetry of its hinges, the working member can be mounted on

you ate

00

  1 body, here is the continuity: I eat the finger of the driven crank sariirno.

A device for combing fur skins (fig.), Dvigatapi 1 of ariod, the shaft of which is connected to the finger of the driving crank 2, the latter is connected by means of the hinge A to the stand 14 "The second finger is connected to the crank 2 by the connecting rod 3 hinge B. The connecting rod 3 is connected by means of the hinge C to the driven crank 5, which by the hinge D is connected to the swing lever 4, connected by means of the hinge E to the stand 14,

With the finger 6 of the crank 5, a holder 7 is rigidly connected, on which, by means of a hinge M, a working body 8 is installed, equipped with a screw 9 which can be used to close the working body 8 and the holder 7. In this case the working body will rotate as one piece with the holder 7,

When the screw 9 is turned back, the working body 8 of the myset is rotated relative to the holder 7 or vice versa, the holder / can rotate relative to the working body 8.

Under the working body 8 there is a table 10 with il processed sandpaper. Table 10 has springs 2 and an adjusting screw 13. Figure 2 shows one of the crankshafts (2 or 5).

The axis ci-hmmetry aa of the hinge B of crank 2 and connecting rod 3 is crossed under the cic line to the symmetry axis b of the hinge A, they are spaced at the shortest distance 1, which is perpendicular to both axes from the hinge center In to the axis b.

Since the axes of the hinges A and B lie in space, the actual picture is distorted when displayed on a sheet plane. Fig. 1 shows the angle θ between the two; the axis of symmetry of the hinge B and the straight line parallel to the axis of the sym- {metry b of the hinge B.

The connecting rod 3 has parallel symmetry axes of the bushings (Fig. 3), whereby the axis a h of the hinge B is parallel to the axis from the hinge C and the axis is spaced from each other at a distance of 2 K.

Swing arm 4 has perpendicular symmetry axes dd and pt vtulo (F51G, 4), therefore, hinges D and

Q uh

0

five

0

0

five

0

E is spaced apart K.

Hour 14 has axes of symmetry b and PP (fig. 5), therefore, hinges A and E are perpendicular to each other and are located at a distance K. The crossing angle o / is between 5 ° –45 ° and distance 1 constructively, based on the overall dimensions of the device.

In the proposed device, all links are pivotally connected: a drive pin 2 with a connecting rod 3 at one end (hinge B), a connecting rod 3 at the other end with a driven crank 5 (hinge C), a driven crank .5 with a lever 4 at one end (hinge D),. Riag 4 Another end with a pillar 4 (pivot E). and a leading crank 2 with a pillar 4 (pivot A),

The hinges are located at the ends of the links and, as can be seen from figure 1, each Sharpnr is formed from two links that form a kinematic pair: one of the links has a finger (shaft), the other has a sleeve or vice versa. The axis of symmetry of both links is common,

Structurally, the hinge can be designed on both sliding and rolling bearings.

The device works as follows.

From the drive motor i, rotation is transmitted to the driver crank 2, crank 2 transmits the connecting rod 3, the driven crank 5 and the lever 4.

The leading crank 2 through the connecting rod 3 drives the driven crank 5, therefore, holds the 7 with the working body 8,

Due to the hinges of cranks 2 and 5, which are crossed at an angle with the axes of symmetry, as they rotate, lever 4 will receive a reciprocating rotational movement about the axis of symmetry np of the hinge E, therefore, holder 7 will receive two more movements: movement in horizontal X and vertical Y planes ( 6).

The angle (at the swing of the lever 4 will be equal to the quadruple angle of crossing of the axes of symmetry of the hinges of cranks 2 and 5, i.e. at 4 oi, the magnitude of X and At the horizontal and vertical mixing of the working body 8 will depend on the angle (j) ((j / depends on the angle with /) and

the lengths of the holder 7. Their values are selected experimentally for certain skins,

Thus, the device provides the working body with three movements: rotational relative to the axis dd, horizontal X and vertical displacement,

As a result of the three movements of the working body 8 with respect to the pelt: vertical, horizontal and rotational, the fur of the pelt is being combed, which is advanced on the table by hand as it is being combed.

In order to avoid damage to the skin of the pelt, table 10 is damped by springs. 1 2 and is adjusted by a screw 13. The rotational movement of the working member 8 can be eliminated when two movements are sufficient to be combed. To do this, release the screw 9, as a result of which the holder will rotate relative to the working member, and there will be no rotation relative to the skin.

The proposed device allows to significantly simplify the design, ensure operability, and increase reliability.

Formula

acquisitions

Claims (2)

1, A device for combing fur skins, containing a working body, worn in the form of a holder with a carded tape attached to it, movably connected to a swinging tape but five 0 a lever pivotally connected to the pillar; a drive of the working member, made in the form of a crank mechanism, including a connecting rod pivotally connected by means of a finger, to a crank pivotally connected by a finger to the rack, and a spring-loaded table for laying the pelt, placed under the working body, characterized in that, in order to increase the reliability of operation, the device has an additional crank mechanism, a rod which is pivotally connected at one end with a finger to the crank and the other The main mechanism is connected to the connecting rod of the crank-connecting rod mechanism, while the additional mechanism is pivotally connected by means of a finger to the swinging lever and rigidly connected to the holder, while the latter is coaxially connected to the crank pin, and the axis of symmetry of the joints of connecting rod and main and additional crank connectors are installed parallel to each other at an angle fi to the axis cc cpi-li, a douche connection of the crank with the stand of the main crank-steps) -: th mechanism, with this axis the symmetry of the rocker arm are mutually perpendicular between each other, and the length of the rocker arm is equal to the ratio of the crank length to the sine of the angle ai 2. The device according to claim 1, characterized in that the working member is attached to the holder hingedly, but. five five Pusf p (la Fia2 3 FIG. four pp FIG. five D FIG. eight