SU914241A1 - Protection glass cleaning device - Google Patents

Description

The invention relates to mechanical engineering, in particular to protective devices of machine tools, and can be used on machines that require intensive use of lubricating and cooling fluids.

A device for cleaning the protective glass, containing the upper and lower horizontal guides installed on them with the possibility of reciprocating movement of the brush. The brush is made in the form of a strip of elastic material in contact with the glass side [1].

However, the device is not effective enough for quick cleaning of highly contaminated protective glass, for example, protective glass of a mobile fence of a CNC cutting machine with a high spindle speed, and. when using low-transparent liquids as a coolant.

The purpose of the invention is to improve the cleaning efficiency when using the device on machine tools.

This goal is achieved by the fact that the brush is made in the form of an endless ribbon with outer protrusions of .. 30 _l

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elastic material, the envelope entered into the device drive and tension pulleys, while the device is equipped with a casing, covering mentioned brush.

In addition, to improve the fit of the brush to the glass, the device is equipped with a pneumatic chamber, installed between two branches of the tape, with one of the branches of the tape facing the glass serving as a wall of the pneumatic chamber and with holes for compressed air.

For more effective cleaning 15 of the central zone of the glass device is equipped with a second brush installed parallel to the first.

FIG. 1 shows a device with two brushes from the working 2θ zone, general view; in fig. 2 shows section A-A in FIG. one; in fig. 3 is a section BB in FIG. one.

The device comprises a frame 1 of the enclosure with a protective glass 2, a cable 3 with a holder 4, designed as a casing of the brush 5. In the upper part is placed the actuator 6 for moving the brush 5 (Fig. 1). The brush is made in the form of a flat tape with a number of protrusions 7 of elastic material with cleaning

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edges and placed on two pulleys 8 and drive 9. Drive pulley 9 sits on a splined roller 10 connected to drive 6. At the same time drive 6 provides reciprocating movement of brush 5 through gear 5 and cylindrical cam 12, into a closed helical groove * The finger 13 of the carriage body 3 enters. To move the carriage 3 with the holder 4, 10 guides 14 and 15 are provided. Between the two branches of the tape, an U-shaped pneumatic chamber 16 is integrated with air through hole 17 (air supply hose not shown). The air volume in the pneumatic chamber is closed by a tape that serves as one of its walls.

A series of holes 18, which are nozzles, are provided to direct air from the pneumatic chamber 16 to direct the pneumatic jet into the contact area of the protrusions 7 of the tape with protective glass 2.

The side walls of the pneumatic chamber 16 (Fig. 3) cover the tape, allowing the air in the pneumatic chamber 16 to be uniformly 25, but press the tape against the glass 2. The movement of the device along the guides is facilitated by the presence of the rolling rollers 19.

The device operates as follows, θ at a time.

When the actuator 6 is turned on, the spline roller 10 and, accordingly, the drive pulley 9 begin to rotate, the protrusions 7 of the tape begin to slide along the protective glass 2 from top to bottom, drawing ^ 5 contamination. At the same time, through the gearbox 11, the actuator rotates the cam 12, which, via the pin 13, communicates to the carriage 3, and hence to the brush 5, a reciprocating movement up to the horizontal. The entire surface of the glass 2 is cleaned evenly when performed with a single brush. In machines with a particularly abundant use of coolant, it is advisable to use two 45 brushes located at some distance from each other. Each of the brushes with each course enters the zone of the other. The distance is determined by the specified zone width, which is cleaned twice as often as the zones at the edges.

In parallel with the drive of the brushes, the compressed air supply is turned on through the opening 17 into the pneumatic chamber 16. Coming out of the chamber through the openings 18, the air helps the protrusions 7 to remove dirt from the glass, while the presence of pressure in the pneumatic chamber 16 ensures uniform pressure of all the projections 7 of the tape to glass 2.

The use of the device provides the operator with an opportunity to visually observe the progress of the processing at any time, allows in many cases to prevent equipment accidents, increases the degree of work safety and eliminates downtime associated with the need to periodically clean the glass manually. .

Claims (3)

Claim 1. A device for cleaning protective glass containing upper and lower horizontal guides with a brush mounted on them with the possibility of reciprocating movement, characterized in that, in order to improve the cleaning efficiency when using the device on metal-cutting machines, the brush is made in the form of an endless belt with outer protrusions of elastic material, the envelope entered into the device drive and tension pulleys, while the device is equipped with a casing covering the above-mentioned brush. 2. Device pop. 1, in order to improve the fit of the brush to the glass, the device is equipped with a pneumocamera installed between the two branches of the tape, with one of the branches of the tape facing the glass serving as a wall of the pneumocamera and there are holes for the supply of compressed air. 3. The device according to PP. 1 and 2, about τη available in that it is equipped with a second brush, installed parallel to the first.