DE4140014A1 - Rolling of profiled grooves in plastic material - has roll with projection to produce an indentation which can accommodate displaced material - Google Patents

Abstract

Profiled grooves (2) are rolled into opposite sides of a plastic material (4) by paired roll sets (8, 10). A second paired roll set (14, 16) produces grooves in the remaining two sides as the material is pushed through by handling devices (30, 38). At least the rolls (24) of one row (8) of the first set have a radial projection (26) arranged to produce an indentation at the end of the groove away from the second set (12) of rolls (14, 16). The roll projection can be a rounded nose. A backing roll (20) can be opposite the roll which has the projection. USE/ADVANTAGE - The indentation produced by the roll projection provides a space for the ridge normally produced at the final roll exit, giving a clean profile on all sides. It is particularly useful for shaping clay for ceramic blocks.

Description

The invention relates to a device for attaching Profile grooves on a plastic material strand according to Ober Concept of claim 1.

Devices of the type mentioned are multiple be knows, for example from DE-PS 28 32 167 and DE- AS 21 20 139. In these known devices there is Disadvantage in that at least the profile grooves, their off from a procedural point of view, one before have standing burr that is annoying.

The object of the invention is a device of the beginning mentioned type so that no disturbing ridges ent stands.

The object is achieved by the characterizing nenden features of claim 1.

Through the profile rollers with the protruding lugs on the Profile groove, which is the second set of profile roller rows a notch is made in the material strand, which are featured in the further profiling of the strand of material pushes material that would otherwise form the ridge would. This will prevent the formation of burrs when profiling the Avoided material strand. If necessary, you can also further rows of profile rollers can be provided with such lugs,  to make notches at the ends of other profile grooves, that can absorb displaced material.

Advantageous embodiments of the device are in the Claims 2 to 8 described.

An embodiment according to claim 2 is particularly advantageous, thus avoiding sharp edges on the notches that are on the finished product could lead to tension in the product.

An embodiment according to claim 3 is particularly expedient, in particular in the training according to claim 4, whereby on the one hand, a deformation of the strand of material when attaching against the notches and is ensured at the same time is that there is a full notch.

Claim 5 describes an economic configuration of the device, since the arrangement of a profile roller Row for both sets of profile roller rows each one particularly economical device results. Basically it is possible that the strand of material is stationary and the rows of profile rolls of both sets one after the other along the Sides of the strand of material are moved. Is more advantageous an embodiment according to claim 6. The first Funding shared conveyor belts that are between the Reach through the profile rollers. However, that is more advantageous Arrangement of a slide that the strand of material between conveyed through the rows of profile rolls. A practical one Further training describes claim 7.

It is particularly advantageous if the device according to Claim 8 is further developed and contains cutting means to the strand of material along the median plane of the profile grooves to cut.  

The device can be used for various plastic materials strands are used. It is particularly advantageous Use in the heavy clay industry for the production of Stones, in particular paving stones from a clay strand.

Embodiments of the subject of the invention described below with reference to the drawings demonstrate:

Figs. 1 to 4, a device for the application of profiled grooves in a plastic material strand in different operating phases in view transverse to the direction of the material strand;

Figure 5 is a row of profile rollers in the approach to the strand of material in a view of the long side of the strand of material, in the cutout and on a larger scale.

Figure 6 shows the profiled strand of material in section along the median plane of the profile grooves. and

Fig. 7 is a profile roller with a modified nose in view across the axis of the profile roller series.

Figs. 1 to 4 show an apparatus for mounting profile grooves 2 of a plastic material strand 4, wherein game, a clay column. The device contains a first set 6 of profile roller rows 8 , 10 and a second set 12 of profile roller rows 14 , 16 , one profile roller row 10 and 14 being common to both sets 6 , 12 . The profile rollers series 8,10 of the first set 6 are arranged übereinan of, wherein the lower profile roller series is preferably reset 8 relative to the upper profiled roller series 10 in the conveying direction 18 of the material strand. 4 Over the lower profile roller series 8 a supporting roller 20 is provided. The profile roller rows 14 , 16 of the second set 12 are arranged essentially horizontally and lie above a conveying plane 22 for the material strand 4 . The lower row of profile rollers 8 of the first set 6 has profile rollers 24 which are provided with a nose 26 in order to provide each profile groove 2 which faces away from the second set 12 of the profile roller rows 14, 16 with a notch 28 , as is the case with this is indicated by dashed lines in FIG. 6.

The device has first conveying means in order to convey the material strand 4 between the rows of profile rolls 8 , 10 of the first set 6 . For this purpose, a slide 32 EXISTING to which a second conveyor means conveys the resting on a support 34 material strand transversely to its longitudinal direction between the profiled rollers series 8.10 on a second base 36 38, which is formed as a lifting platform. While the material strand 4 is being conveyed between the Profilrol len rows 8 , 10 , the material strand is provided with profile grooves 2 on the top and bottom. The lower Profilrol len row 8 is designed and arranged so that the lugs 26 of the profile rollers 24 press the above-mentioned notch 28 into the material strand 4 , as shown in Fig. 2. In a further method step the material is extrusion 4 by means of the second conveyor 38 by conveyed between the profiled rollers rows 14,16, the restli chen sides of the strand of material 4 are provided with the profile groove. The device is equipped with cutting means 40 , which are arranged after the profile roller rows 14 , 16 , so that when the material strand 4 is raised further, it is cut along the central plane of the profile grooves 2 .

As can be seen in particular from Fig. 6, the material strand is provided at the end of the lower profile groove 2 with a notch 28 indicated by a dashed line, which, however, absorbs the displaced material which arises when the left profile groove is profiled. Without the notch 28 , the ridge 42 indicated by dashed lines would arise on the lower left edge.

FIG. 7 shows a modified profile roller 44 , the nose 46 of which has rounded transitions 48 from the circumference of the profile roller to the nose 46 and a rounded tip 50 in order to avoid sharp edges in the material strand.

Reference list

2 profile groove
4 strand of material
6 first sentence
8 profile roller series
10 profile roller series
12 second sentence
14 series of profile rollers
16 profile roller series
18 direction of conveyance
20 backup roller
22 Funding level
24 profile roll
26 nose
28 notch
30 first funding
32 sliders
34 document
36 pad
38 second funding
40 cutting means
42 ridges
44 Profile roll
46 nose
48 transition
50 tip

Claims (8)

1. Device for attaching profile grooves ( 2 ) to a plastic strand of material ( 4 ) transversely to the longitudinal direction thereof with a first set ( 6 ) of pairs of rows ( 8 , 10 ) made of profile rollers for profiling against opposite sides of the strand of material ( 4 ) and a second set ( 12 ) of rows ( 14 , 16 ) arranged in pairs of profile rolls for profiling the remaining sides of the material strand ( 4 ) and with devices ( 30 , 38 ) for moving the material strand ( 4 ) relative to the first and second sets ( 6 , 12 ) of the profile roller rows ( 8 , 10 , 14 , 16 ), characterized in that at least the profile rollers ( 24 , 44 ) of a row ( 8 ) of the first set ( 6 ) have radially projecting lugs ( 26, 46 ) and are arranged so that the strand of material (4) at the end of the profile (2) which of the profile roller rows (14, 16) are each provided opposite the second set (12) with a notch (28). 2. Device according to claim 1, characterized in that the nose ( 46 ) has rounded transitions ( 48 ). 3. Apparatus according to claim 1 or 2, characterized in that the row ( 8 ) of the lugs ( 26 , 46 ) provided profile rollers ( 24 , 44 ) relative to the other profile roller row ( 10 ) of the first set ( 6 ) in Direction of movement ( 18 ) of the strand of material ( 4 ) is reset. 4. The device according to claim 3, characterized in that the with the lugs ( 26 , 46 ) provided profile rollers ( 24 , 44 ) on the opposite side of the material strand ( 4 ) is assigned a support roller ( 20 ). 5. Device according to one of claims 1 to 4, characterized in that the sets ( 6 , 12 ) of the profile roller rows ( 8 , 10 , 14 , 16 ) are arranged so that a profile roller row ( 10 , 14 ) is common to both sentences ( 6 , 12 ). 6. Device according to one of claims 1 to 5, characterized in that the rows ( 8 , 10 ) of the profile rollers of the first set ( 6 ) are arranged substantially one above the other and the movement device first conveyor means ( 30 ), preferably a slide ( 32 ) in order to convey the material strand ( 4 ) horizontally between the rows ( 8 , 10 ) of the profile rollers. 7. The device according to claim 6, characterized in that the rows ( 14 , 16 ) of the profile rollers of the second set ( 12 ) substantially horizontally, preferably above the conveying plane ( 22 ) of the first conveying means ( 38 ), preferably as a lifting platform, to convey the strand of material ( 4 ) between the rows of profile rolls ( 14 , 16 ) of the second set ( 12 ). 8. Device according to one of claims 1 to 7, characterized in that the second set ( 12 ) of the Profilrol len-rows ( 14 , 16 ) cutting means ( 40 ), preferably cutting wires, are arranged downstream to the material strand ( 4 ) along the Center plane of the profile grooves ( 2 ) to cut the.