EP2956272A1

EP2956272A1 - Brush deburring machine for combined cutting with individual deburring

Info

Publication number: EP2956272A1
Application number: EP14703397.1A
Authority: EP
Inventors: Ulrich Rattunde
Original assignee: Rattunde AG
Current assignee: Rattunde AG
Priority date: 2013-02-18
Filing date: 2014-02-10
Publication date: 2015-12-23
Anticipated expiration: 2034-02-10
Also published as: CA2900430A1; DE102013101580B4; ES2625053T3; CN105163902A; US20160001419A1; CN105163902B; DE102013101580A1; MX359810B; MX2015010633A; CA2900430C; JP6059826B2; WO2014124902A1; US9656369B2; JP2016511700A; EP2956272B1

Abstract

The invention relates to a deburring machine for ends of segments (3, 51) of a long profiled part cut to length, said deburring machine having a receptacle (4) for a stack (2) or a bundle (50) of segments (3, 51) and a separating device for the segments (3, 51) of the stack (2) or bundle (50), having a transport device for the separated segments (3, 51) and at least one brush (40) which is arranged along the transport device, is in contact with the ends of the separated segments (3, 51) during the transport thereof and deburrs the ends.

Description

Brush deburring machine for multiple cuts with single deburring

The invention relates to a deburring machine for ends of cut-to-length sections of a long profile and to a method for deburring ends of cut-to-length sections of a long profile.

Deburring machines, in particular brush deburring machines, are already known in the prior art from DE 10 2010 046 392 A1. Brush deburring machines are generally not used on their own, but in combination with pipe cutting machines that cut lengths of pipe from a metal pipe at high speeds. The cut sections are then treated further. The further treatment can take place in various sequential process steps, in particular pipe ends can be chamfered and / or washed and / or deburred. The brush deburring machine frees the ends and cut surfaces of the metal tubes during their transport by means of transport discs from sharp burrs left over in the cutting process.

From US 6,206,763 B1 a brush deburring machine is known which transports pipe sections by means of drivers along oppositely rotating brush rollers. The pipe sections are fed individually to the Bust deburring machine. In DE 80 16 245 U1 a brush deburring machine is disclosed, the pipe sections individually supplied and which are deburred by rotating brush rollers.

To increase the number usually long profiles are not individually cut to length, but it will be formed stack of long profiles, and from the stacks of long sections of sections are cut to lengths, which are then fed to a further processing. A disadvantage of this type of stacking is that the successive and in contact with each other standing sections of long profiles cut along their entire circumference evenly processed in the subsequent steps, in particular can not be uniformly deburred, since the sections shield each other by the contact and protect ,

It is therefore an object of the present invention to provide a deburring machine and a method of the type mentioned above, which avoids or at least reduces the disadvantages mentioned. The object is met in a first aspect by an aforementioned deburring machine having the feature of claim 1 and in a second aspect by a method having the features of claim 9. Preferred embodiments of the deburring machine and the method are the subject of the respective subclaims.

The deburring machine according to the invention is characterized on the one hand by a receptacle for a stack or a bundle of cut sections of a long profile and by a separating device for the sections and a transport device for the individual sections and at least one arranged along the transport brush, which preferably rotates and during the transport of the separated sections is in contact with the ends of the individual sections and deburred by the rotation of the cut surfaces of the cut sections.

The deburring machine according to the invention makes it possible in a simple manner to maintain a multiple cut which is important for the speed of the sawing process, by cutting through stacks or bundles of long profiles and by further processing the stack or bundles of sections forming thereby. Nevertheless, each individual section is subjected to individual treatment by the brushes by the singulator, and therefore the deburring process is performed as carefully as if the sections had been individually cut to length from the long profile and individually fed to further processing, in particular deburring. In a preferred embodiment of the invention, the transport device has two rows of transport disks arranged side by side in the transport direction, which have pairs of recesses opposite to the transport direction for receiving the individual sections. Each row of transport discs comprises staggered, partially overlapping even and odd transport discs. In this case, 'straight' and 'odd' refers to the consecutive numbering of the transport discs in the transport direction. The straight transport discs are coupled together and the odd transport discs are coupled together.

The receptacle, in which the stack or the bundle of sections is first inserted, is dimensioned to receive a plurality of sections. However, the recesses of the transporting disks are each dimensioned only to receive a single section. The pairwise opposite recesses allow the Recording a single cut-to-length section. The cut sections are vortransportierbar by rotation of the transport discs in the transport direction. The rotation is preferably clocked and during each clock in the same direction. In a particularly preferred embodiment of the invention, the receptacle comprises alternating Einzelaussparungspaare and at least one arranged in the direction of rotation of the first transport disc before recording stop and a arranged in the rotation direction behind the stack receiving holder. The receptacle is therefore made variable during the entire deburring process of a stack or bundle of sections, although it has a constant stop and a constant holder, but changing Aussparungspaare.

In a preferred embodiment of the invention, the stack or bundle can be inserted directly into the receptacle at portions under immediate contact with the recess. If the recess is not positioned to be part of the receptacle, the stack or bundle will make direct contact with the transport disc. However, if the transport disk is rotated so far that one of the recesses is part of the receptacle, preferably arranged directly adjacent to the stop, the entire stack or the entire bundle can be inserted into the receptacle such that preferably exactly one section is positioned in the associated recess is and makes contact with the wall of the recess.

In a preferred embodiment of the invention, a transfer device of the stack or the bundle is provided at portions of a cutting device directly into the receptacle of the deburring machine. The transfer device is preferably designed as a gripper, which engages the simultaneously cut sections as a stack or bundle and inserts as a stack or bundle in the receptacle, where they have direct contact with the associated recess or the pair of recesses. Conveniently, odd recesses of an odd transport disc have a greater length along the circumference than a depth in the radial direction, and recesses of a straight transport disc have a smaller length along the circumference than a depth in the radial direction. By arranging successive straight and odd transport discs with the respective recesses, it is possible to transfer non-rotationally symmetrical, for example, flat-oral profiles from one transport disc pair to the next, even in cross-section. In a further embodiment of the invention, angular distances of adjacent recesses of straight and odd transport disks are formed differently from one another. In its second aspect, the invention is achieved by a method of deburring ends of a cut-to-length section of a long profile, preferably by means of one of the above-described deburring machines, by placing a stack or bundles of cut-to-length sections into a receptacle which isolates portions of the stack or bundle and then transporting the separated portions along a transporting direction and brushing the ends, preferably the cut surfaces, during transport. The essential feature of the invention is that, despite the introduction of a stack or bundle of cut-to-length sections into a deburring machine, the actual brushing process takes place individually for each section and the entire stack is not brushed in the form of a stack.

Conveniently, the first pair of transport wheels is rotated continuously in a constant direction of rotation, and at each cycle a lowermost, radially innermost portion of the section stack or bundle is taken in the transport direction and later transferred to the second pair of transport wheels.

Preferably, several stacked long profiles are cut to length at the same time and the stack or the bundle of cut-to-length sections is inserted into a receptacle.

Preferably, the stack or bundle is inserted directly into the receptacle, wherein the receptacle has a recess here also with the correct position of the first transport disc pair, so that the stack or bundle conveniently when inserting into the receptacle immediate contact with a wall of the recess of the first Pair receives transport discs, so that the inserted stack or the inserted bundle does not have to roll to the recess, but the sections of the stack or the bundle are separated directly and simultaneously transported by the transport disc.

The invention will be described with reference to two embodiments in three figures. Showing:

1 is a partial view of a brush deburring machine for receiving a stack of Flachoralprofilen, Fig. 2 perspective view of a brush deburring machine gem. Fig. 1,

Fig. 3 detailed view of a brush deburring machine for receiving a bundle of pipe sections.

In Fig. 1, a section of a brush deburring machine 1 is shown schematically without brushes. Brush deburring machines 1 are provided at the end of a chain of processing steps for cutting sections of a metallic hollow or solid profile.

Fig. 1 shows a brush deburring machine 1 for deburring inserted in stacks 2 in the brush deburring machine, cut to length Flachoralprofilabschnitte 3. Under Flachoralprofilabschnitten 3 are understood to cross sections perpendicular to the longitudinal direction of the section flattened tube cross-sections. A longest outer diameter is longer, in particular 10%, 20% 30% or 50% or even twice as long or even longer than a shortest outer diameter. There are also length ratios between the mentioned length ratios possible. The cross section is hollow inside. The Flachoralprofilabschnitte 3 can be cut from a single long profile or as shown in Fig. 1, simultaneously from a stack of long profiles and then inserted as a stack 2 of Flachoralprofilabschnitten 3 in a pile receptacle 4.

In Fig. 1, three flat in cross-section metallic long profiles are stacked and sawed off at the same time. The resulting after the cut three superimposed sawed Flachoralprofilabschnitte 3 are gripped as a triple stack 2 with a (not shown) gripper and inserted into the stack receiving 4 of the brush deburring machine 1.

The brush deburring machine 1 has pairs of opposite transport pulleys TL T ₂ . The transport disk pairs are arranged along a transport direction T. The transport discs Ti, T ₂ are arranged offset in the transport direction T and allow by rotation and transfer the transport of the Flachoralprofilabschnitte 3 along the transport direction T. During their transport along the transport direction T, the extreme ends of the Flachoralprofilabschnitte 3 are deburred by moving along a rotating , arranged in its longitudinal axis in the transport direction T, are guided in Fig. 1 brush not shown. The rotating brush removed on the one hand during the sawing and resulting on the cut surface of the Flachoralprofilabschnitts 3 remaining chips, on the other hand but also by the sawing off the Flat profile profiling 3 Sharp degree forming on the edge of the cut surface. The sharp degree can completely circulate the end face of each of the flat profile sections 3 on the outside. Pairs of odd transport discs Ti are gem. Fig. 1 arranged closer to one another in the transport direction than the pairs of straight transport disks T ₂ . Thereby, it is possible to each other in an overlapping arranging the odd 7 ^ and the straight TransportscheibenT _2, and thus the transfer of individual flat Oral profile sections 3 shown in Fig. 1 to allow of a pair of transport discs Ti to the directly adjacent pair of transport discs T _2.

The first and the odd transport discs 7 ^ have along their outermost periphery flat, long odd recesses 111, which are adapted to the size of the cross section of the transported Flachoralprofilabschnitts 3. Each odd recess 111 is designed to receive exactly one end portion of a flat profile section 3. The Flachoralprofilabschnitt 3 is located at its two end portions on a respective transport disk Τ-ι, T _{2 of} the transport disk pair and is transported by rotation of the transport disks 7 ^ to the next pair of transport disks T ₂ and handed over in the overlap area.

The straight recesses 112 of the second and the straight transport discs T ₂ are also adapted to the cross sections of the Flachoralprofile, however, the straight recesses 112 along the circumference of the straight transport discs T ₂ are arranged and 90 ° about an axis perpendicular to the transport direction T against the odd recesses 111 of the odd transport discs 7 † rotated so that the straight recesses 112 along the circumference of the straight transport discs T _{2 are} narrow but formed along a radius R deep. A depth of the straight recesses 112 corresponds substantially to a long diameter of the Flachoralprofilabschnitts 3, while a width of the straight recesses 112 substantially corresponds to the short diameter of the Flachoralprofilabschnitts 3, while the depth and width of the odd recesses 111 are exactly reversed dimensions.

The transport discs Τ · ,, T ₂ rotate along the transport direction alternately and clocked. The clocked rotation of the straight transport discs T ₂ is the timing of the odd transport discs Τ · ι adapted. With clocked rotation of the odd transport disks T-) they are an angle ch, which is substantially the length of the odd notch 111 plus the distance to an immediately following odd Recess 1 1 1 corresponds, pre-transported. Then, the rotation of the odd transporting disks Ti is stopped. After the odd transport discs t1 are stopped, on the one hand, the next Flachoralprofilabschnitt 3 falls into the next odd recess 1 1 1, on the other overlap in the stop position of the odd transport discs 7t straight and odd notches 1 1 1, 1 12 to a Flachoralabschnitt to hand over. After the rotation of the first transport discs 7t is stopped, the straight transport discs T ₂ rotate in one cycle by an angle a ₂ , which corresponds substantially to the width of the straight recesses 1 12 plus the distance between two straight recesses 1 12 from each other. The straight transport discs T ₂ stop at the end of the cycle in a position in which the straight recesses 1 12 are arranged in a lateral view along the circumference of the odd transport discs 7 t. There, the straight transport discs T _{2 are} stopped, and the first transport disc rotates in turn in a subsequent clock by an angle c ^. The angles dt and a ₂ are equal here.

The stack holder 4 forms a separating device for the Flachoralprofilabschnitte 3 of the inserted stack 2. The separating device comprises a stop 30 fixed in relation to a frame (not shown) of the brush deburring machine 1, and a rear holder 31 and two flat odd recesses 1 1 1 alternating in the stepping cycle of the pair of odd transporting disks 7t.

After inserting the stack 2 of cut flat Flachoralprofilabschnitten 3 in the stack recording 4 is the odd transport disk 7t facing, so the radially inner side of the Flachoralprofilabschnitts 3 in the flat odd recess 1 1 1, and he fills this substantially completely. In particular, a radial circumference of the odd transport pulleys 7t extends along the radially outer side of the flat profile section 3 inserted into the odd recess 11. By rotating the first transport pulleys 7, the radially inner flat profile section 3 under the stack 2 is pulled away. The other two Flachoralprofilabschnitte 3 are pressed against the stop 30 and prevented by the stop 30 on further rotation. After completion of the first clock, the following empty odd recess 1 1 1 is positioned in the stack recording 4. The now lowest Flachoralprofilabschnitt of the stack 2 falls into the free odd recess 1 1 1 and the next clock begins. In this case, as many cycles go through until the entire stack is removed 2 on Flachoralprofilabschnitten 3. Thereafter, a new stack 2 is inserted at Flachoralprofilabschnitten 3 in the stack recording 4. The gradual clocked removal of the stack 2 is the separation of Flachoralprofilabschntte. 3 By separating the sawn Flachoralprofilabschnitte 3, the rotating brush is allowed to completely remove the forming along the entire circumference of the sectional surface of the section 3 degree. In particular, the degree can also be removed at the locations which are in contact with one another in the stack arrangement and are therefore difficult or impossible to access for a rotating brush.

Fig. 2 shows schematically the entire brush deburring machine 1 gem. 1 with two odd transport discs ΤΊ and two straight transport discs T ₂ and a separating device with stack receiving 4 and a rotating brush 40 for deburring the cut surfaces of the isolated Flachoralprofilabschnitte third

Fig. 3 shows a comparison with FIG. 1 other embodiment of the brush deburring machine 1, which is intended to receive a bundle 50 of, here four, circular profile sections 51. The circular profile sections 51 are inserted in a bundle 50 of four sections in a bundle receptacle 4, which in turn includes a leading in the direction of rotation of the first transport discs T-i stop 30 and a returning holder 31. The radial depth of the first recesses 1 1 1 of the odd transport disks T-, is such that it substantially corresponds to a diameter of the circular profile sections 51. By step timing are also here, as in the embodiment acc. Fig. 1, the circular profile sections 51 pulled out successively under the remaining bundle 50 of the circular profile sections 51 and conveyed forward with the first transport discs Ii in the transport direction T.

The odd and even transport discs Ti and T ₂ are arranged to each other in both embodiments, that the acquisition and transfer of the sections 3, 51 rotated by an angle of 90 ° along the transport disk Τ ^ T _{2 is} arranged so that in a brush deburring machine 1 for Entgratung of a stack 2 of exactly two sections of a double cut the odd and even recesses 1 1 1, 1 12 each have an angular distance of α ₂ = 45 ° from each other, at a three-section angular distance of α · ι = α ₂ = 30 ° from each other and at a four-section have an angular distance of α ₂ = 22.5 ° from each other. LIST OF REFERENCES

1 brush deburring machine

2 stacks

3 flat oral profile section

4 recording / batch recording / bundle recording

30 stop

31 holders

40 brush

50 bundles

51 Circular profile section

1 1 1 odd recess

1 12 straight recess

R radius

T transport direction

Ti odd transport discs

T ₂ straight transport discs αι angle

a ₂ angle

Claims

claims

Deburring machine for ends of cut-to-length sections (3, 51) of a long profile with a receptacle (4) for a stack (2) or a bundle (50) of sections (3,

51) and

a separating device for the sections (3, 51) of the stack (2) or bundle (50),

with a transport device for the separated sections (3, 51) and

at least one brush (40) arranged along the transport means, which is in contact with the ends of the singulated portions (3, 51) during their transport and deburrs the ends.

Deburring machine according to claim 1,

characterized in that the transport device has two rows of transport disks (TT ₂ ) arranged side by side in the transport direction (T), the pairs of recesses (1 1 1, 1 12) opposite to the transport direction (T) receiving a single section (3 , 51).

Deburring machine according to claim 1 or 2,

characterized in that a receptacle (4) alternating pairs of

Recesses (1 1 1) and at least one in the transport direction (T) arranged in front of the alternating recess pairs fixed position stop (30).

Deburring machine according to claim 3,

characterized in that the receptacle (4) at least one in

Transport direction (T) behind the recess pair arranged holder (31).

Deburring machine according to one of claims 1 to 4,

characterized in that the stack (2) or the bundle (50) at portions under immediate contact with the recess (1 1 1, 1 12) directly into the receptacle (4) can be inserted.

Deburring machine according to one of claims 1 to 5,

characterized by a transfer device of the stack (2) or bundle (50) at portions of the cutting device directly into the receptacle (4)

Entgratemaschine.

7. deburring machine according to at least one of claims 1 to 6,

characterized in that odd notches (1 1 1) odd

Transport discs (T1) along the circumference have a greater length than a depth in the radial direction (R) and recesses (1 12) straight transport discs (T ₂ ) have a smaller length along the circumference than a depth in the radial

Direction (R).

Deburring machine according to claim 1 to 7,

characterized in that angular intervals (α ^ α ₂ ) of adjacent recesses (1 1 1, 1 12) straight and odd transport discs (Ti, T ₂ ) are different from each other.

A method of deburring ends of cut sections (3, 51) of a long profile with a deburring machine (1) according to any one of claims 1 to 8, by

a stack (2) or bundles (50) of cut-to-length sections (3, 51) is placed in a receptacle (4),

the sections of the stack (2) or bundle (50) are separated,

the separated sections (3, 51) are transported along a transport direction (T) and

Ends of the sections (3, 51) are brushed during transport. Method according to claim 9,

characterized in that a first pair of transport discs (Ti) is continuously cycled in one direction and at each cycle a radially innermost portion (3, 51) of the stack (2) or bundle (50) in the transport direction (T) entrains and to the second pair of transport discs (T ₂ ) passes.

Method according to claim 9 or 10,

characterized in that a plurality of stacked or bundled long profiles are cut to length simultaneously and the stack (2) or the bundle (50) cut sections (3, 51) directly into the receptacle (4) is inserted.

Method according to claim 1 1,

characterized in that the inserted into the receptacle stack (2) or the bundle (50) after insertion into the receptacle (4) immediately makes contact with a wall of the recess (1 11, 1 12) of the first pair of transport discs (T1) receives ,