DE9312771U1 - Cleaning machine for U-shaped formwork profiles - Google Patents

Description

Günther Wagner

Hockenheim

Syspro Group Concrete Parts e.V.

Lampertheim

Cleaning machine for U-shaped formwork profiles

When producing precast concrete parts, formwork and rod-shaped magnets with a rectangular cross-section are required for the brackets. At the end of the production process, concrete residues stick to the brackets and formwork and must be removed. Formwork profiles with a U-shaped cross-section are used, which are particularly difficult to clean. The innovation is based on the task of creating a machine that is suitable for cleaning such U-shaped profiles.

This object is achieved by the combination of features specified in claim 1.

Preferably, the cleaning machine according to the invention has a further parallel cleaning track on which profiles or magnets with a rectangular cross-section are cleaned, for which purpose this track is designed according to the features of claim 3. Since profiles with different dimensions are to be cleaned with the machine, the brushes and feeds are designed to be adjustable.

Further embodiments of the machine emerge from the further subclaims and are described in more detail using the embodiment in the drawing.

Fig. 1 shows a front view of the machine, Fig. 2 shows a side view and
Fig 3 a top view

In Fig. 1, a U-shaped profile 2 is inserted into one of the machine's cleaning tracks 1, which is transported by a drive through the first part I of the machine. This drive consists of a conveyor belt 4 running over two end rollers 3 and counter-pressure rollers 5 pressed against the profile 2 by springs. As can be seen from Fig. 3, a large number of counter-pressure rollers 5 are provided and additional auxiliary rollers 6 are also provided on the opposite side to prevent the conveyor belt 4 from slipping. From Fig. 2, the division of the machine (parts I and II) in the working direction can be clearly seen.

In Fig. 1 it can be seen that a brush Bl with diagonally running steel bristles 8 engages in the profile 2 and, in the appropriate position, cleans the left inner wall of the profile. It is driven by a motor Ml, as Fig. 2 shows.

This is followed by a second brush B2 with a motor M2, which also has slanted bristles, but which are directed in the opposite direction and clean the right inner wall. This is followed by two brushes B3 and B4 with motors M3 and M4, which have radial bristles.

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The brush β3 cleans the inside of the U, the brush B4 cleans the outside. The angled brush B2 would come into contact with the conveyor belt 4 as long as no profile has been inserted and would damage it. For this reason, the brush B2 is offset to the left as long as no profile has been inserted. When the profile is inserted into the track, it activates an electrical switch which uses pneumatics to move the brush B2 to the right into its working position and bring it into contact with the inner wall of the U.

Conversely, brush B2 is moved back again when the profile has passed through the area of brush B2. Profile 2 rests on a wooden support 7.

A square profile 10, e.g. a bar magnet, is inserted into the second track of the machine. This is moved through the first part of the machine by a similar feed (end rollers 11, conveyor belt {.2., auxiliary rollers 13 and counter-pressure rollers 14) and cleaned by two brushes B7 and B8 with radial bristles and motors M 7 and M 8 at the top and bottom. The brushes are also adjustable to compensate for bristle wear. "The conveyor belts 4 and 12 are driven by motors MIl and M12 via one of the end rollers 3 and 11 respectively.

In part II of the machine, a drive with end rollers 16, auxiliary rollers 18 and conveyor belt 17, motors M13 and M14 and counter pressure rollers 19 is provided for each track (Fig. 2) and there are brush pairs B5 and B6 or B9 and BIO with radial bristles with

Motors M6 to MIO are intended for cleaning the outer side walls of the profiles. These drives are tilted by 90° compared to the drives in Part I. . ,

The U-profiles 2 are sprayed with formwork oil by a device 20 at the end of the track. A wheel 21 senses the incoming profile and starts the spraying device and keeps it running as long as it is driven by the profile.

Claims (10)

Protection claims 1.) Cleaning machine for U-shaped formwork profiles, characterized in that the machine is divided into two parts one behind the other (parts I and II) and has a feed (3 to 6; 17-19) for the profiles (2) in each part (1,11), that the feed (3 to 6) of one part (I) engages the profiles (2) on the outer side walls and the feed (17 to 19) of the other part (Z) engages the profiles on the outside of the crossbar, that four driven brushes (Bl to B4) are attached to the feed path of one part (I), the axes of which are approximately perpendicular to the side walls of a profile (2), that two brushes (B3 and B4) are provided with radial bristles and are arranged in relation to the path of the profile in such a way that they clean the profile running through on the bottom (Z) of the U or on the outside of the crossbar, that the other two brushes (Bl and B2) are inclined brushes, the bristles (8) obliquely to the brush wheel outwards and in the case of the two brushes in different directions and that these brushes (Bl and B2) are arranged in such a way to the path of the profile (2) that they clean the continuous profile (2) on the inner side surfaces, that on the feed path of the other part (II) two driven brushes (B5 and B6) are attached, the axes of which lie approximately parallel to the side walls of the profile (2) and that these two brushes (B5 and B6) are provided with radial bristles and are arranged in such a way to the path of the profile (2) are installed so that their bristles clean the outer side walls of the continuous profile. 2.) Cleaning machine according to claim 1, characterized in that it has at least one further parallel cleaning track. 3.) Cleaning machine according to claim 2, characterized in that this track is designed for profiles (10) with a rectangular cross-section and that it is also divided into two parts (I; II), has two consecutive feeds (11 to 14; 16 to 19) and in each part (I; II) has two brushes (B7 and B8; B9 and B10) with radial bristles for each opposite pair of sides of the profile (10). 4.) Cleaning machine according to one of claims 1 to 3, characterized in that the brushes (B1 to BIO) and feeds (3 to 6; 17 to 19; 11 to 14; 16 to 19) are adjustable to adapt to different profile dimensions. 5.) Cleaning machine according to one of claims 1 to 4, characterized in that the feeds have conveyor belts (4; 12; 17). 6.) Cleaning machine according to claim 5, characterized in that the feeds each consist of a conveyor belt (4; 12; 17) acting on one side and opposite spring-loaded counterpressure rollers (5; 14; 19). 7.) Cleaning machine according to claim 6, characterized in that the conveyor belts (4; 12; 17) run over a plurality of parallel rollers (6; 13; 18). 8.) Cleaning machine according to one of claims 1 to 7, characterized in that an inclined brush (B2) without an inserted profile (2) is arranged in a starting position in which it is further away from the conveyor belts (4) and that it can be automatically adjusted to the working position after a profile has been inserted. 9.) Cleaning machine according to one of claims 1 to 8, characterized in that a spray device (20) for spraying the profiles (2) with formwork oil is arranged at the track end. 10.) Cleaning machine according to one of claims 1 to 9, characterized in that the brushes are adjustable to compensate for wear.