SU614822A1 - Roll for applying liquid onto articles - Google Patents

Description

(54) FORMULAT FOR THE APPLICATION OF LIFE / LIFE ON THE PRODUCT

The invention relates to the field of woodworking and can be used in roller machines for applying adhesive, bleaching, priming, paintwork and other liquid materials on the flat surfaces of parts.

The known roller for coating, made of metal R.}. Because of the rigidity of such a roll, such a roller does not ensure uniform application of liquids with different characteristics.

The closest in technical essence and the achieved result is a roller for applying liquid to products, comprising a body and a cylindrical shell fixed thereto of elastic material, for example rubber, plastics, etc., which increases the possibility of providing the prescribed application mode for liquids. The coating surface of such rollers is characterized by any one, which is detached, according to the material of the elastic coating, by elasticity. In this regard, a significant drawback of waltz with elastic psg |: stiism is the inability to change the elasticity of the deposition surface with respect to various applied fluids, which makes it necessary to replace roller B 2J.

The invention of this invention is the ability to control the elasticity of the shell.

This goal is achieved by the fact that the body is made with a recess on its cylindrical surface, which forms a cavity with the cylinder shell, which communicates with a source of gas compression, the cylindrical shell being fixed along the edges of the body by means of rings mounted for movement along its longitudinal axis.

The drawing shows a general view of the roller.

The drum consists of a shaft 1, body 2, an inflatable cylindrical shell 3, an id of elastic material, fixed along the edges of the body in the fastening racks 4, installed with the possibility of {{) mixing along the longitudinal axis of the body 2.

Moving the fastening rings 4 along the core 2 Used with screws 5 fixed in fastening rings 4 to the fastened s nut-brackets 6 rigidly mounted on the housing 2. The housing 2 is made with a recess on its cylindrical surface that forms a cavity with the cylindrical shell 3 And communicating with a source of compressed gas by means of a pipe 7.

The operation of the device is as follows.

The drum applies liquid materials to flat surfaces of products, such as furniture panels, with a cylindrical piece. Here, the longitudinal axis of the roll and the surface of the product onto which the liquid material is applied are arranged horizontally. The liquid material can be supplied to the roller by razgly way; in the simplest version, the drum is partially immersed in your liquid material, then during rotation it will gather a layer of material itself. When the product is relatively moved in the direction perpendicular to the longitudinal axis of the drum and the roll rotates when the cylindrical surface of the drum is in sufficient contact with the surface of the product, a layer of material is transferred to the product. For the required flow of liquid material, the contact force of the roller and product must be selected depending on viscosity applied material.

The application of low-viscosity compositions takes place at a relatively low gas pressure in a roller and with a slight tension of the elastic shell. When applying high viscosity compositions, a significantly greater contact force between the roller and the product is required. To ensure that a significant pressure of gas supplied from the source through the pipeline 7 is created in the cavity of the roller, the fastening rings 4 move apart by the screw 5 and, as a result, the tension of the elastic shell 3 increases. The regulation of the flow rate of the liquid material within the past viscosity is made by varying the degree of inflation of the elastic shells.

The use of a roller with an elastic inflatable casing with a wide range of characteristics on the elasticity of the working surface will allow applying various viscosities of liquid materials to the flat surfaces of parts without replacing the roller on the machine, which will reduce the labor costs of applying materials 1.15-1.2 times on one machine. Based on the application of the proposed roller, it is possible to create a roller of a universal machine tool and reduce the type of roller equipment produced.

Providing the ability to control the elasticity of the working surface of the roll, depending on the characteristics of the applied material, will provide an opportunity to improve the quality of the application of materials and reduce their consumption by 10-15%. The use of such a roller in woodworking when applying adhesives, primers, paints and varnishes and other liquid materials to flat surfaces would give an annual economic effect of 350–400 thousand rubles.

Claims (2)

Formula Invention A drum for applying liquid to the products, comprising a body and a cylindrical shell of elastic material fixed thereto, characterized in that, in order to allow the elasticity of the cap to be adjusted, the housing is made with a cavity on its cylindrical surface, which forms a cavity with the cylindrical shell. compressed gas, the cylindrical shell being fixed along the edges of the body by means of rings mounted with the possibility of being moved along its longitudinal axis. Sources of information taken into account in the examination: 1, Malenko KS. Processing of polymeric materials on large machines. Technique, K., 1971, p. 115, fig.30 2. Bukhti ditch V. P. Equipment for finishing wood products. Forest industry, M., 1971, p. 33, rice, 13  6 - .3