SU13585A1 - Porcelain teapot drilling machine - Google Patents

Description

The machine is intended to drill through the mechanical nose of the holes in the body of porcelain teapots at the point of attachment of the sock. This operation is performed shortly after the teapot body is molded, when the porcelain mass is not yet dry, and therefore the force required for drilling is very small.

In FIG. 1 is a side view of the machine with a partial section, fn.2 is a cross-section of its coupling along linin-b; 3-side view, in partial section, of a modification of the machine described in Section 3 of the patent subject.

An essential part of the machine is the drilling head A. with a set of drills driven by the friction clutch M. The clutch is mounted on a horizontal shaft B carrying the drive pulley B and lying in two hollow bearings, which are one piece with the uprights 0.0 and the plate P The drilling head A, screwed to the slab And separately, is arranged as follows: in its upper part, but both sides, two chiseled washers D, D are fastened, in which sixteen holes are drilled. Turned rollers E are passed through these holes, with the ends of the rollers protruding on both sides of the washers D. A drill bit T is put on one end of each roller, and the other is fitted with a pulley L. The drills are put on the rollers with their tubular ends and are rubbed. Pulleys L in the amount of fifteen pieces are located in two concentric circles, in the center of which is the sixteenth pulley. All of them are in contact with each other in such a way that the rotation of the pulleys located on the outer circumference is transmitted to the middle, and the latter rotate the central pulley. Medium pulleys are wrapped around leather or rubber, the rest are metal, machined together with rollers from one piece. On the outer rollers, two rings are put on: the inner H-leather and the outer P-rubber. The latter, with its elasticity, tightly presses the leather ring to the outer pulleys. The rubber ring is enclosed by a wide copper coil spring C, which has a thickening T at one end, which can be formed by the bend of the spring bend. This thickening enters the corresponding cutout of the sleeve G. When rotating the sleeve in the direction of the arrow shown in the drawing, the spiral C twists, compresses the rubber and leather rings and, rotating together with the coupling, forces the outer pulley, and from the mi the movement is transmitted and all other pulleys, and therefore drills. A washer G with concentric grooves does not allow the pulleys to move in the axial direction and at the same time holds

leather ring from slipping. The middle drill is made somewhat longer than the others, which makes it easier to drill holes in a pre-marked place.

In a modification of the machine, described in n. 3 nredyet natent, drills E are not rotated directly by the friction clutch, but by the help of the intermediate mechanism F (Fig. 3), from which the drills are transmitted by flexible shafts X, X. The arrangement of this mechanism is as follows: between two washers 111,111, there are twenty conical rollers U, the axes of which are embedded in the corresponding cuts on the washers. In the central part of the mechanism, a conical pulley is mounted on the end of shaft B. The surface of the pulley is covered by leather with which it is in close contact with the rollers U. The rollers are attached to the thread by flexible shafts X, X, the other ends of which are connected to the rollers E of the drilling head A similar to the above. When the shaft rotates, its movement is transmitted through the pulley to the rollers, and from the latter through the flexible shafts X, X-drills. The upper part of the drilling head A is made detachable, so by unscrewing the flexible rollers, you can remove the washers D, D along with the drills n

Insert a new set in which the number of drills and their location will be consistent with the size and style of the kettle to be processed.

The subject of the patent.

1. A machine for drilling holes in porcelain kettles, characterized by the use of a drilling head A with D, D holes mounted in perforated washers but concentric circles with rollers E formed at its ends covered by a rotating sleeve G and interconnected by means of pulleys D friction system and employees to drill bits E (Fig. 1).

2. In the machine mentioned in clause 1, use of the ends of the rubber and leather rings P in H enclosing the joints, P in H, compressed by the coil spring C (Fig. 2).

3. Change of the machine mentioned in p. 1, characterized by using, instead of the friction clutch, the intermediate mechanism F (Fig. 3), equipped with conical rollers U, tightly in contact with the surface of the pulley H covered with leather and serving to transfer the rotation to the drills using flexible shafts X, X.

fig 2