SU992436A1 - Apparatus for drawing glass products - Google Patents

Description

t.54) DEVICE FOR EXTRACTION OF GLASS PRODUCTS

one

The invention relates to the building materials industry, in particular to the glass industry, and. Namely ... to the production of glass products, including pipe, by molding:, and pulling them in the vertical direction from the melt.

A device for vertical drawing of pipes comprising a frame, a support with a horizontal spindle, a driving roller mounted for rotation by a drive, and a pressure roller mounted for horizontal movement, both rollers made with the possibility of vertical movement and rotation are known. spindle 1.

Closest to the proposed technical essence is a device for stretching glass products, containing pull rollers with

gland and drive with a gear for rotating rollers t2.

However, the known devices have an insufficient diameter. manufactured pipe products due to insufficient pulling force

Claims (2)

A dowel roller ensures the pipe is drawn up to a diameter of 16-18 mm). With an increase in the stretching force, it is necessary to increase the pressure of the pulling roller on the pipe, which leads to the destruction of the latter. The disadvantage is also the bending of the stretchable items. Since the pulling roller is mounted on a movable relative to the horizontal plane of the bases C lever, rocker), when interacting with the product being stretched, it moves from the horizontal axis, causing unbalance of the forces pressing the rollers to the product. Because of this, arises. the bending moment that is transferred to the product and is balanced by it in the forming zone, where the product bends (-B-Formed) and bends (20) the glass mass is in the plastic state and the product is most easily given to the curvature. In the case of a rigidly secured lowering roll of the line between the points of contact of the pull and pinch roller and the stretchable product due to manufacturing errors, adjustments, backlashes are not strictly perpendicular to the draw axis, which also creates a bending moment and lead to the bending . The purpose of the invention is to improve the quality of the geometry of the manufactured products. This goal is achieved by the fact that a device for stretching glass products, containing pull rollers with a pressure device and a drive with a mechanism for transferring rollers to rollers, is equipped with an additional pair of pull rollers and a system (levers, and the rollers are located under each other). the other, joints, fastened together by hinged parallel axes, are arranged in a plane, perpendicular to the axis of the manufactured products, and the levers lying crosswise are connected by a hinged link located perpendicular to About the axis of producing products. In addition, the mechanism for transferring the speed of the rollers to the rollers can be made lever, while the gears are mounted in the levers. Fig. 1 shows a device for drawing glass products, general view; Fig. 2 - the same, vertical section. The device contains driving roles KI 1 - 4, mounted cantilever levers 5-8. Levers 5 and 7, § and 8 unpaired one-sided rollers are hinged on axles 9 and 10, respectively, axes 9 and 10 are parallel to each other in a plane perpendicular to the axis of the batyvaemyh product 11. The free ends of levers 5 and 6, 7 and 8 are connected to the tightening springs 12 and 13, respectively. Crosswise, the levers 5 and 8, b and 7 are interconnected by hinges 14 and 15, which are located perpendicular to the axis of the produced products 11. Transmission of rotation from the actuator 16 to the heavy rollers 1-4 is made with gear gears 17 and located in levers 5 - 8 gears 18. Dilution of pulling rollers is carried out, for example, by a pedal mounted on rod 19 and pivotally connected to levers 7 and 8 tons 20 and 21. The device operates as follows. When the boom 19 is lifted through a system of levers, synchronous dilutions of the lower 1 and the upper and lower pairs are synchronized. In the free state, the pull rollers with the help of springs 12 and 13 are pressed against the product being produced and with the drive turned on, the product is pulled downwards. The proposed device allows to increase the draw force by four times and, consequently, to increase the diameter of the manufactured products, to increase the stability of the geometric dimensions of the products by reducing the radial beats of the rollers, and also to exclude the possibility of bending the manufactured product, since it is fixed at three points along the length: the forming zone and two points of the desired pairs of rollers. Claim 1. A device for stretching glass products, comprising pulling rollers with a pressure device and a drive with a mechanism for transmitting rotation to rollers, characterized in that, in order to improve the quality of the manufactured products, it is equipped with an additional pair of pulling rollers and a system levers, the rollers being located one under the other, are connected by a pair of levers fastened together by pivotally parallel axes mounted in a plane perpendicular to the axis of the products being produced, and lying crosswise e levers pivotally interconnected draft type, situated perpendicular to the axis produced products. 2. A device according to claim 1, characterized in that the mechanism for transmitting the rotation to the rollers is made lever. Sources of information taken into account in the examination 1. The author's certificate of the USSR P 620436, cl. From 03 to 17/04, 1976. 2. USSR author's certificate number b52128, cl. From 03 to 17/04, 1974 (prototype).