CZ303323B6 - Drum washer for cleaning long materials - Google Patents

Abstract

The present invention relates to a drum washer for cleaning long, particularly hollow materials consisting of a drum structure (2) rotating inside a cylinder (3). On the circumference of the drum structure, there are performed longitudinal channels for placing material therein, and the drum structure has means for inserting material into said channels and means for removal of the material therefrom. The drum structure is provided on its face wall with nozzles for injecting cleaning liquid into the channels. The invention is characterized in that the channels are made as troughs (5) that are rotatably mounted on the drum structure (2). In working position the troughs (5) adjoin by their free edges to the drum (2) and the depth of the troughs (5) corresponds to the width of an annular space extending between the drum (2) and the cylinder (3), wherein the washer is provided with means for lifting the troughs (5) from the drum (2) at the point of inserting material and at the point of the material discharge.

Description

Drum washing machine for cleaning long materials

Technical field

The invention relates to a drum washing machine for cleaning and degreasing long, in particular hollow materials or products such as pipes and various profiles. It consists of a drum structure rotating within the cylinder, on the circumference of which are formed longitudinal channels for storing material, the washing machine having means for inserting material into and out of these channels and having nozzles for injecting cleaning liquid into the channels at the front.

BACKGROUND OF THE INVENTION

Known drum washers for long, particularly hollow materials and articles are formed by a drum structure rotating within the cylinder. Radially situated longitudinal plates are fastened to the periphery of the drum, between which there are channels defined from the inside of the drum housing and from the outside of the cylinder housing. Through the longitudinal opening above the level of cleaning liquid in the washing machine, products to be cleaned are inserted into the channels. The liquid coming from the nozzles located at the front of the washing machine flows through the channels along the products and through their cavities and cleans them. The cleaned products are raised above the surface and fall through the outlet longitudinal opening onto the conveyor. In known washing machines of this type, a technological gap is required between the free edge of the plate and the inner wall of the cylinder, which adversely affects the flow in the channel. In addition, the products are skidded on the inner wall of the cylinder, the smaller profiles are transverse in the slot, and particularly in the case of aluminum profiles, they are damaged. This problem is attempted to solve the drum washer according to U.S. Pat. No. 5,549,759. Here, the drum rotates in the opposite direction, the products are first lifted and the channels are flushed and the cleaning of the products occurs in the upper half of the drum rotation. Thus, the products lie on the outer wall of the drum and are not damaged. The disadvantage is the relatively complex design of such a device; the cleaning channels are above the liquid level in the washing machine and must be sealed.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a drum type washing machine which allows cleaning of long materials in the lower position without damaging them.

SUMMARY OF THE INVENTION

This object is achieved by a drum washing machine for long, in particular hollow materials, which consists of a drum structure rotating inside a cylinder, on the circumference of which longitudinal material receiving channels are formed, and which has means for inserting material into these channels and means for exiting therefrom and it has nozzles for injecting cleaning liquid into the ducts, the ducts being in the form of troughs which are rotatably mounted on the drum structure, in the working position they adjoin the free edge to the drum and their depth corresponds to the width of the annulus between the drum and the cylinder wherein the washing machine has means for pivoting the troughs from the drum at the material insertion point and at the material exit point.

Advantageously, the gutter tilting means may be formed by gutter projections extending inside the drum structure and by stops located inside the drum structure.

Overview of the figure in the drawing

BRIEF DESCRIPTION OF THE DRAWINGS The invention will be further elucidated by means of the drawing, in which FIG.

DETAILED DESCRIPTION OF THE INVENTION

In the housing and the washing machine, the structure of the drum 2 is rotatably mounted within the cylinder 3. By means of hinges

4, which are fastened in rows on the drum structure 2 along its periphery, troughs 5 are rotatably mounted on the drum structure 2. The shape of the troughs 5 and their bearings are designed such that the troughs 5 in working position pass through an annular between the drum 2 and the inner wall of the cylinder 3 and in this case they adjoin the outer wall of the drum 2 with the free edge. The troughs 5 are provided with projections 6 on the side of the pivot bearing. These project into the openings in the drum 2 into the interior of the drum 2, where they come into contact with the stops 7, 14.

In the embodiment of FIG. 1, the structure of the drum 2 rotates to the left. At the material insertion point, the stopper 7, by means of the projections 6, tilts the trough 5 away from the drum 2, the trough 5 opens with its own weight and the conveyor 8 inserts the material into it. i.e., with its free edge, it adjoins the drum 2 and together with the outer wall of the drum 2 forms a closed channel through which the liquid supplied by the nozzles located at the front of the washing machine flows. This takes place substantially below the level of the liquid 11. The construction of the drum 2 takes the tube 9 to the outlet point formed by the chute 12 and the other conveyor 13. Here, the projection 6 of the trough 5 hits the stop 14, by the projection 6 the trough 5 tilts away from the drum 2 and the pipe 9 falls out of the trough

5 and on the rear wall of the following trough, it is rolled onto the chute 12. Thus, the entire cleaning process takes place in a closed channel with fixed walls.

Claims (2)

PATENT CLAIMS A drum washing machine for long, in particular hollow, materials, comprising a drum structure rotating within a cylinder, the circumference of which is formed by longitudinal channels for storing material, and having means for inserting material into these channels and means for exiting therefrom; it has nozzles for injecting cleaning liquid into the channels, characterized in that the channels are designed as troughs (5), which are rotatably mounted on the drum structure (2), in the working position they abut a free edge on the drum (2) and their depth corresponds width of annulus 35 between the drum (2) and the roller (3), the washing machine having means for pivoting the troughs (5) away from the drum (2) at the material insertion point and at the material exit point. Drum washer according to claim 1, characterized in that the means for tilting the trough (5) are formed by the projections (6) of the trough (5) extending into the structure of the drum (2) and the stop 40 to the inside (7, 14). the drum (2).