NL1040664C2 - DEVICE FOR DEBRAMMING AND / OR COMPLETING A MAIN PRODUCT. - Google Patents

Description

Title: Device for deburring and / or rounding off a substantially flat product

DESCRIPTION

The invention relates to a device for deburring and / or rounding off a substantially flat product, such as a metal, for example punched out semi-finished product. After this, the term deburring may also include deburring, rounding, grinding, etc.

It is generally known to deburr semi-finished metal products after punching, sawing, water jet or laser cutting etc. and to process the sharp edges in such a way that they are no longer sharp.

The present device has for its object to provide a device which performs deburring on the top and bottom of a product simultaneously, so that, as is the case with single-sided deburring devices, the product does not have to be introduced twice into the machine (with intermediate turn over). To this end, the invention provides a device for deburring and / or rounding off a substantially flat product, wherein a number of lower rollers or wheels are provided, and one or more upper rollers or wheels, hereinafter lower rollers or rollers. called upper rollers, the axes of rotation of which run parallel to each other and of which one or more can be rotated under the influence of first drive means A and which are further configured such that the product to be deburred can be placed between the lower and upper rollers and under drive of the first rollers drive means and the upper and lower rollers make a product transport movement in a direction of a first movement line I; wherein furthermore one or more upper deburring discs or brushes and lower deburring discs or brushes, hereinafter upper brushes resp. called lower brushes which are rotated about their axis of rotation under the influence of second drive means B and which are preferably rotatable about axis of rotation that run substantially parallel to the direction of the aforementioned first movement line I (the axis of rotation may also have a different position, for example 15 °, 30 ° or 45 ° with respect to the movement line I; the rotational axes of the brushes may also have mutually different positions); and wherein the lower and upper brushes are further included in one or more frames which are arranged around the lower and lower parts respectively. upper brushes through spaces next to resp. to move back and forth between the lower and upper rollers under drive of third drive means C.

Preferably, a first part of the upper and / or lower brushes is driven in a first direction of rotation, while a second part is driven in a second direction of rotation, for example opposite to the direction of rotation of the first part, or at an angle other than the direction of rotation of the first part, if the rotational axes of the different brushes have mutually different positions, for example 15 °, 30 ° or 45 °. By giving the brushes different rotational directions - opposite (= 180 °) or with different smaller angular differences (for example 15 °, 30 ° or 45 °) - an improved deburring direction efficacy and a quality improvement of the machining result are achieved .

The device proposed here makes it possible to process the product on two sides in one pass. The brushing technology used provides effective results in deburring and rounding. Due to the great flexibility of the machine, it is suitable for a wide range of products. The transfer speed and mode, shuttle speed, rotation speed, depth adjustment and brush selection can be set independently of each other. In addition to the combination of top and bottom sanding, it is also possible to process the product on one side. Due to a rapid change of tooling and an automatic calibration position, no time is lost when multiple materials have to be processed. This makes the machine usable 24/7. All components in the machine are easily accessible, which promotes maintenance friendliness. The machine is easy to operate thanks to an intuitive PLC control, buttons, displays etc.

In addition to the "basic machine", it is possible to combine it optionally with a sanding unit in front, so that materials with extreme burrs can also be processed. The addition can also be a sanding belt after the machine, which ensures that the material comes out with a nice finish. In addition, it is possible to opt for an automatic cleaning function.

An advanced servo technique has been applied in this machine that optimizes the movements and therefore keeps energy and tooling consumption (in particular brush wear) low and maximizes output. The high-tech design, including visual operandi control through LED lighting, ensures that the machine is easy to use and has a very robust and solid design.

The invention will now be further discussed with reference to the figure description below of an exemplary embodiment.

Figure 1 shows a preferred embodiment of the invention in 3D;

Figure 2 shows a front view of the same preferred embodiment;

Figure 3 shows a side view of the same preferred embodiment;

Figure 4 shows a top view of the same preferred embodiment;

Figures 1-4 schematically show (the operation and main components of) a preferred embodiment of a device for deburring and / or rounding off a substantially flat product (not shown) as represented by the present invention.

A number of lower rollers 1 and upper rollers 2 are provided in the device which are mounted at their ends in a frame (not shown) and whose axis of rotation 3 run parallel to each other and one or more of which are driven by first drive means A (not shown) , for example an electric motor with drive belts or chains running over belt or chain wheels at the ends of the respective rollers, can be rotated (arrows 4), while the other, non-driven upper and / or lower rollers are freely rotatable (but rotate with the movement of the product to be deburred once the product has been introduced into the device)

Preferably, as is the case in the preferred embodiment shown, the upper rollers 2 are driven and, in order to increase the "grip" on the surface of the product to be deburred, they are provided with a rubber jacket 5. The lower rollers 1 are In this embodiment, a number of lower rollers 1 are provided per upper roll 2. The frames (not shown) in which the lower roles 1 resp. upper rollers 2 are mounted - such that a rolling bottom (transport) surface and a rolling top (transport) surface are formed, can be moved away from each other and towards each other, for example by means of a mechanism, for example driven by a servomotor, which can move one or both frames (and thereby one or both rolling conveying surfaces) up and down to thereby be able to apply the deburring product between said rolling conveying surfaces and to remove it again after deburring. The device and the upper and lower rollers 1,2 are thus configured such that the product to be deburred can be placed between the lower and upper rollers 1,2 and a transport movement in a first movement under the drive of the first drive means A and the driven upper rollers 2 direction of movement I.

The product can be introduced into the device at the front and transported backwards by the upper rollers 2 (in cooperation with the lower rollers 1), after which the product -from the inside of the device moving back and forth by (hereinafter to be discussed further) and thereby to be simultaneously rotating rotating deburring brushes, is carried out at the rear again outside the device. The upper rollers 2 (and the non-driven lower rollers 1) thus rotate in one direction, whereby the product is transported to the rear.

It is also possible to choose to introduce the product at the front of the device and also to export it at the front. In that case, the (transport) rollers 1 and 2 must perform a reciprocating, rotating transport movement: in one direction for the input and in the other (return) direction for the output of the product.

Finally, you can also choose to subject the product to brushing two or more times. In such a multiple operation, the drive A of the driven rollers 2 is programmed such that said transport rollers make two or more cycles, each with a forward and backward movement, so that the product moves forward and forward a number of times through the transport rollers 1 and 2. is transported at the rear and simultaneously (as many times) worked by the deburring brushes.

The rotary deburring brushes mentioned comprise a number of upper deburring discs or brushes and lower deburring discs or brushes, hereinafter upper brushes 6 and 4, respectively. called bottom brushes 7, which are rotatable about rotation axes 8, 9 which in the embodiment shown are substantially parallel to the direction of the aforementioned first movement line I and which are rotated about their rotation axes 8, 9 under the influence of second drive means B , for example electric motors. If desired, the rotation axes 8, 9 can be inclined with respect to the movement line I. The rotation axes of the brushes can also differ from one another, either individually or in groups.

The lower and upper brushes 6, 7 are included in one or more frames (not shown) which are arranged around the lower and lower parts respectively. upper brushes 6,7 through spaces 10 next to resp. to move back and forth between the upper and lower rollers 1,2 in a direction of movement II parallel to the longitudinal direction of the rollers 1,2 while driving third drive means C (not shown), for example a linear movement mechanism which is driven by a rotating or linear electric motor.

A first part 6 of the upper brushes 2 is driven in a first direction of rotation 11, while a second part 6 'is driven in a second, opposite direction of rotation 12. Similarly, of the lower brushes 1, a first part 7 is driven in a first direction of rotation 11, while a second part 7 'is driven in a second, opposite direction of rotation (not shown). Due to these mutually different directions of rotation, deburring effectiveness and quality are improved, as has been shown experimentally.

The operation is as follows: - The product is introduced from the front between the upper and lower rolls 1,2; - The lower and upper brushes 6 (incl. 6 ') and 7 (incl. 7') are brought into rotation (or are already in rotation) and then moved back and forth in the direction of movement II; - In the meantime, the upper rollers 2, in cooperation with the lower rollers 1, transport the product to be deburred, which is clamped between the lower and upper rollers 1,2, along the movement line I to the rear (seen in Figure 1). Optionally (see a note in the foregoing) the product is transported back and forth one or more times so that the deburring rollers can process the bottom and top surfaces of the product one or more times; - After the deburring action has been carried out, the product is exported via the rear (or front) of the device.

Due to the reciprocating linear movement II of the rotating lower and upper brushes 6,7 and the backward (and possibly backward) movement or movements (with a multiple brush cycle) of the product along the direction of movement (s) I, under the influence of the rotating (see arrows 4) rollers 1,2, the (initially sharp) edges of the product are deburred and / or rounded simultaneously at the top and bottom. Furthermore, the top and bottom surfaces of the product are brushed / ground.

Claims (3)

Device for deburring and / or rounding off a substantially flat product, wherein a number of lower rollers or wheels are provided, and one or more upper rollers or wheels, hereinafter lower rollers (1) resp. called upper rollers (2), whose axis of rotation (3) run parallel to each other and of which one or more can be rotated under the influence of first drive means A (4) and are further configured such that the product to be deburred between the lower and lower upper rollers can be placed and one or more lower and / or upper rollers make a movement in a first direction of movement I while driving the first driving means A and the respective driven one or more upper rollers; wherein furthermore one or more upper deburring discs or brushes and lower deburring discs or brushes are provided, hereinafter upper brushes (6,6 ') resp. called bottom brushes (7, 7 ') rotated about their axis of rotation under the influence of second drive means B; and wherein the lower and upper brushes are further included in one or more frames which are arranged around the lower resp. upper brushes through spaces (10) next to resp. to move back and forth between the upper and lower rollers (II) while driving third drive means C. Device as claimed in claim 1, wherein the top brushes and / or bottom brushes are rotatable about rotation axes (8,9) which run substantially parallel to the direction of the aforementioned first movement line I. Device as claimed in claim 1 or 2, wherein of the top brushes and / or bottom brushes a first part (6,7) is driven in a first direction of rotation, while a second part (6 ', 7') is driven in a second direction of rotation.