CZ405897A3 - Machine for side flushing brickmaker's and refractory products differing in calibrated dimension - Google Patents

Abstract

The fire baked bricks and tiles (1) are transported past two milling stations (5,5') on two parallel drive belts (3). They are held down onto the drive belts by a third drive belt (4). Between the two milling stations, a vertical support frame (7) stabilises the belt drives and prevents vibrations from being transmitted between the milling stations. The milling stations finish the bricks/tiles to the correct dimensions. Each milling station has milling rotors and protective cowls. The elastic drive belts are reinforced and are profiled on the rear to run over drive gears and for alignment control.

Description

Machine for lateral alignment of brick and fireproof products, differing in calibrated dimensions

Technical field

BACKGROUND OF THE INVENTION The invention relates to a machine for laterally aligning brick and fireproof products, in particular for calibrating bricks, according to the generic part of claim 1.

BACKGROUND OF THE INVENTION

Such a machine is known from DE 296

728

Hive.

With a machine of this kind, bricks or unburned products of different widths can be ground to the size just desired, which would be possible with a single fixed-width conveyor belt to a very small extent, see page 2, paragraph 7,

There is also a disadvantage.

that there is a structurally demanding and bifurcated structure and, in particular because of the adjusting spindle, the transmission of vibrations between the two sides of the machine is supported. The transport system makes accessibility difficult. In addition, the transport chains result in relatively high wear and noise levels, as well as relatively high maintenance costs.

SUMMARY OF THE INVENTION

SUMMARY OF THE INVENTION It is an object of the present invention to provide an improved machine of this type, which operates with reduced noise levels and is constructed using fewer functional elements more easily, as well as less vibrations, less maintenance and easy to access.

According to the invention this is solved by a machine with the features of

Claims 1. Preferred further solutions result from the subclaims.

The invention is characterized by a simple construction which is easy / quick to maintain. A particular advantage is that both machine tables are dynamically separated by the machine and an asymmetric positioning is also possible.

BRIEF DESCRIPTION OF THE DRAWINGS

An exemplary embodiment of the invention is shown schematically in the figure and is explained in more detail below. They show:

Fig. 1: a schematic side view of the actual conveyor system and the alignment device of the aligning machine according to the invention for lateral machining, in particular grinding, of bricks; Fig. 2: front view of the aligning machine; A-A of FIG. 1 and FIG. 4: enlarged sectional view of the area designated B in FIG. 2, namely the cross-section of the conveyor belt with the centering pulley engaging with it and shown incompletely.

DETAILED DESCRIPTION OF THE INVENTION

The alignment machine according to the invention for lateral alignment of brick and fireproof products, in particular for calibrating bricks or unburnt bricks, marked as 1, whose conveying width and / or calibrated dimension varies over a large range, can be designed as one or two-stage working grinding and / or milling machine. The particularly advantageous design as a flat brick grinding machine enables •

- 3 for two-way support of the object adjustment of calibrated dimensions / grinding widths in the range of 200 - 500mm. Of course, the machine according to the invention can be designed for larger working widths, e.g. up to 800mm.

The objects to be aligned X extend in the direction of the arrow T. They are first laterally aligned by the adjusting device 2 and are clamped in such a position between the machine conveying system consisting of the lower driven conveying device 3 and the holding device 4 height adjustable according to the brick height. at least one alignment station 5, 5 - and are laterally machined, in particular being ground to a predetermined / selectable calibrated dimension. As can be seen from FIGS. 2 and 3, the conveyor device 3 is divided in width and preferably has two belt drives which carry objects and are positioned transversely to the transport direction while being adjustable to different spans and synchronously driven.

The alignment machine according to the invention has a base, denoted as a whole by number 6., which is preferably constructed symmetrically and can be used for a machine operated from left and right. On the pedestal 6, next to the conveyor system itself, as well as approximately in the middle between the two alignment stations 5, 5, is a stand 7 carrying a height-adjustable holder 8 for the central hinge of the holding device 4, which is suspended as a whole. 2., designed as a bellows. The symmetry planes of the transport route and the holding device coincide and lie in the transport axis of the machine M. The adjusting drive for the height adjustment of the holder 8 is indicated as 10. The pedestal 6 has guide tracks XX on which a laterally adjustable machine table 12 Each machine table 12 has its own adjustment drive, preferably an adjustment spindle 14, driven by a motor 13; this makes it possible to move the tables of the machine 12 not only individually (i.e.

each separately), but also both to each other or to each other, as this can be done with varying degrees of displacement. The recess 15 in the machine table (see Fig. 2) allows for a large adjustment operation.

Each machine table is equipped with two fastening points located one behind the other in the transport direction.

which are intended for a complete functional alignment unit, in particular for a base body with a feed guide, a positioning drive, a driven grinding and / or milling rotor 17, a housing 18 (shown on only one alignment unit), and either comprising such a functional alignment unit (as 2), or a cover member (not shown).

The two tables of the machine 12 have a separate measuring device 19 for each alignment device (which may also be a sanding belt) for the tool function surface, which detects contactlessly the actual position of the alignment tool, compares it with the desired position, and converts the result into control pulses. and due to the control coupling of the respective measuring devices 19, 19 with the respective alignment tool drive, initializes the alignment tool shift to the side. The measuring devices 19, 19 on each side of the machine are moved by moving the machine table to the home position, predetermined by the calibrated dimension / dimension of the grinding width. The measuring devices 19, 19 are embodied as laser measuring devices, having a laser transmitter and receiver which cross in the direction of the secant (not shown) the rotating circle of the aligning rotor or the functional area of the abrasive belt. In a preferred two-stage machine, the lateral offset between the front and rear lasers is adjustable.

The belt drives of the conveyor device 3 carrying the object are each formed by a belt formed as a conveyor belt.

5 of a reinforced (reinforced) flexible material which, on its reverse side, has at least one wedge section 20 in the central region in the transverse section of the belt, in particular a notch on the V-belt, bounded by two V-shaped grooves; To each side of the alignment device, the pulleys with the wedge profile 22 engage, in order to adjust the lateral force contact of the wedge surfaces, so that they are supported by a spring. The lateral toothed profiles 2X extend in the section of the upper branch through sliding bars 23 which support them and form abutments. The drive pulleys 24 are in the form of a toothed belt pulley, and in their central part may be constructed as a V-belt pulley.

The drive pulleys 24 of the two conveyor belts of the conveyor 2 are continuously connected to one another with respect to rotation. This can be accomplished by a mechanical shaft (e.g., a splined shaft or preferably a splined shaft for a segment key), or a so-called electric shaft (e.g., synchronously connected synchronous drives); a mechanical solution is shown wherein the drive and propeller shafts are designated as 25.

The holding device 4 has a belt, in particular a so-called conveyor belt, which is in contact with the aligned / calibrated brick and which has longitudinally extending wedge grooves on the reverse side. In the retaining branch, at least in the region of the alignment station (s) 5, 5 ', the centering, resiliently mounted wedge-shaped pulleys 26 occupy, and the two lateral regions can run over the supporting slide rails.

The conveyor belts of the conveyor device 3 and the retaining device 4 have elastic longitudinal strips 27 which act as bumpers on the surface contacting the brick X. They run through the housing 28.

• · · · · · · · · · · · · · · · · ·

The two conveyor belts of the conveyor device 3, which are divided into two parts, are each arranged on adjacent tables of the machine 12 and are thus adjustable by adjusting the machine table to the desired support distance.

Claims (11)

PATENT CLAIMS tfOSS-ies ·· ·· ·· ·· · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · 1. A machine for laterally aligning brick and refractory products, in particular so-called flat bricks, whose conveying width and / or calibrated dimension is within a larger range, wherein a machine conveying system is present which articles to be processed, such as flat bricks, unburnt flat bricks and the like, after lateral alignment, grips between the driven lower conveyor device and the holding device and transports them at a set position height clamped through two alignment stations with lateral tool delivery, - the conveyor device is divided in width and has belt drives carrying objects each placed on a machine table which are movable transversely to the conveying direction with respect to the base and which each carry at least one alignment device, and - the holding device is height-adjustable relative to the conveying device according to the desired dimension, the height of the object as well as exerting pressure on the workpiece, characterized in that: a) on the base (6) is located laterally next to the machine conveying system (3, 4) and thus approximately in the middle between the two alignment stations (5, 5) is located a stand (7) carrying a height adjustable bracket (8) the holding device (4), suspended as a whole, wherein the planes of symmetry of the conveyor track and the holding device (4) coincide, b) both tables of the machine (12) have their own adjusting spindle (14) * · with their own drive motor (13) and they are not only individually but also both adjustable towards or away from each other, c) at least belted drives of the conveyor device (3) carrying the articles are formed by endless belts of flexible material, designed as toothed belts, and their branch on the side of the articles being conveyed is guided laterally and vertically, and d) all the drive pulleys (24) driving the toothed belts are continuously connected to each other firmly against rotation, this being effected by a mechanical shaft (25) connecting them or by a so-called electric shaft, in particular synchronously connected synchronous drives. A machine according to claim 1, characterized in that a) the pedestal (6) is designed symmetrically, ie for right or left-hand operation, b) both machine tables (12) are constructed symmetrically, c) each machine table (12) is constructed with two fastening points spaced one behind the other in the direction of object transport, for a complete functional unit alignment device - especially for a base body (16) with feed guide, positioning drive, driven grinding and / or a milling rotor (17), a cover (18), and either comprises such a functional alignment device unit or a cover member and d) the holding device (4) lies in the plane of symmetry of the machine (M) and is supported by a stand (7) belonging to the machine stand (6) and located left or right next to the conveyor device (3) . (12) machines by removing (15) on A machine according to claim 1 or 2, characterized in that a) belted drives of the conveyor device (3) carrying objects are always formed by a so-called belt made of reinforced (reinforced) flexible material, designed as a conveyor belt, which has a belt section on the reverse side - at least one wedge profile (20) in the central part, and - a toothed profile (21) on both sides, i b) the conveyor belt drive pulleys (24) are formed by toothed belt pulleys and are continuously connected to each other with respect to rotation. c) are in contact with the upper strand of the conveyor belt at least in the region of the alignment station (5, 5) or at least in the region of the alignment station; pulley alignment stations (5, 5) as centering pulleys, which are positioned so as to be spring loaded to adjust lateral force contact of the wedge surfaces, and d) the lateral toothed profiles (21) extend over the slide rails (23) in the upper branch section. Machine according to claim 3, characterized in that the conveyor belts of the conveyor device (3) have a notch on the back in the middle of the V-belt (20), bounded by two V-shaped grooves. Machine according to claim 3 or 4, characterized in that the back of the toothed profile and the wedge profile of the conveyor belt is on a common curve. Machine according to one of Claims 1 to 5, characterized in that the belt or belt surfaces Z 99 999 9 9 9 9 Machine according to one of Claims 1 to 6, characterized in that the conveyor belts are threaded through the belt housing (28) forming the tunnel. Machine according to one of Claims 1 to 7, characterized in that the holding device (4) has a conveyor element which consists of a belt, in particular a so-called conveyor belt, with longitudinally extending wedge grooves on the reverse side. the retaining branch extending transversely over its center region via centering pulleys with a wedge-shaped profile (26) which are suspended and present at least in the region of the alignment station (5, 5) as well as the two lateral regions extending over the supporting slide rails. A machine according to claim 1 or 2, characterized in that: a) each machine table (12) has for each alignment device (5, 5) a measuring device for a tool functional surface (19, 19) which contactlessly detects the actual position of each alignment tool, compares it with a desired position as it translates the result into a control pulses, and due to the control coupling of the respective measuring devices (19, 19) with the respective alignment tool drive, initiates the alignment tool shift to the side in the desired range, and b) The two measuring devices (19, 19) on one side of the machine are moved together by moving the machine table to the basic position, predetermined by the calibrated dimension. 9 9 9 9 9 9 99 99 9 9999 9 9 9 9 · Each conveyor belt carrying the articles has at least one elastic strip (27). 9 9 9 9 · Machine according to claim (9), characterized in that the two measuring devices (19, 19) of each machine table 11 (12) are designed as laser measuring devices whose laser beams intersect the cutting circle of the grinding rotor in the cutting direction and extend above the path of movement of the object to be aligned, and for multi-stage alignment the lateral offset between the front and rear lasers is preset.