DD264811A3

DD264811A3 - DEVICE FOR FOLDING TINES

Info

Publication number: DD264811A3
Application number: DD29880386A
Authority: DD
Inventors: Erich Reins; Klaus Hinnerichs; Manfred Munzig; Wilhelm Bruehl
Original assignee: Erfurt Bau Montage
Priority date: 1986-12-30
Filing date: 1986-12-30
Publication date: 1989-02-15

Abstract

Die Erfindung betrifft eine Vorrichtung zum Falzen von Blechen, insbesondere zum Herstellen von Stehfalzen bei Dacheindeckungen, Eindecken von Kuppeln oder anderen Wandverkleidungen. Die Vorrichtung soll eine gute Qualitaet bei der Verarbeitung des zu falzenden Bleches gewaehrleisten und zur Herstellung von Stehfalzen an den unterschiedlichsten Dacheindeckungen, wie zum Beispiel fuer die Eindeckung konvex gekruemmter Flaechen, einsetzbar sein. Erfindungsgemaess ist vor den ersten Falzrollen im Bereich des Vorrichtungseinlaufes ein an der feststehenden Falzrollenlagerplatte befestigtes Aufgleitteil, welches mit einer Rundung oder Aufgleitschraege versehen ist, angeordnet. Fig. 3The invention relates to a device for folding sheets, in particular for the production of standing seams in roofing, covering of domes or other wall coverings. The device should ensure a good quality in the processing of the sheet to be folded and for the production of standing seams on a variety of roofing, such as for the covering convex curved surfaces, be used. According to the invention, in front of the first folding rollers, in the region of the device inlet, there is a slide-on part attached to the fixed folding roller bearing plate, which is provided with a rounding or sliding-on slide. Fig. 3

Description

The device for folding sheet metal consists of a housing 1 to which a handle 2 is attached for handling. in the Housing 1, a frame-like bracket 3 is arranged on which a carriage 4 is fixed, which four rollers 5 for guiding dor Device on or on the sheet has. Furthermore, two Falzrollenlapirplatten 6 are fixed in the housing 1, which profiled the waves 7 of different, respectively

paarweise angeordneten, Falzrollen 8 aufnehmen. In den Wellen 7 der Falzrolle 8 sind Kettenräder 9 angebracht, die durcharranged in pairs, accommodate folding rollers 8. In the shafts 7 of the seaming roller 8 sprockets 9 are mounted, through

Chains 10 are connected together. On a shaft 7 darüuer out a gear 11 is fixed, via the gear 12 and dom bevel pinion 13 with a horizontal

angeordneten, elektrischen Handbohrmaschine 14 mit einstellbaren Drehzahlen in Verbindung steht.arranged, electric hand drill 14 with adjustable speeds is in communication.

The frame-like bracket 3 is in each case arranged on both sides on the front and rear on adjustable crank levers 15. The crank levers 15 are fastened to two axles 16 mounted parallel to the work surface in the housing 1. The axles 16 carry

gleichfalls die Falzrollenlagerplatten 6. Die Kurbolhebel 15 sind jeweils durch eine Koppelstange 17 verbunden. Der Antrieb deralso the Falzrollenlagerplatten 6. The crank lever 15 are each connected by a coupling rod 17. The drive of the

Crank lever 15 is effected by rotation of the one axis 16, which is extended to one side on the housing 1 addition. At this extension, a lever 18 is arranged, through which the axis 16 can be locked. For this purpose, the lever 18

axial verschwenkbar und durch eine Feder 19 in der verschwenkten Lage feststellbar. Er besitzt einen Nocken 20, der in Kerbeneines Rastringes 21 einrastet. Der Rastring 21 ist stufenlos einstellbar am Gehäuse 1 befestigt.axially pivotable and lockable by a spring 19 in the pivoted position. He has a cam 20 which engages in notches of a locking ring 21. The locking ring 21 is infinitely adjustable attached to the housing 1.

A lateral adjustment of the folding rollers 8, which at different sheet thicknesses or by the different number of

falzenden Bleche oder durch unterschiedliche Biegekräfte notwendig wird, erfolgt durch die Verstellung der auf den Achsen 16gelagerten Falzrollenlagerplatten 6 zueinander.Falzenden sheets or by different bending forces is necessary, carried out by the adjustment of the mounted on the axes 16 Falzrollenlagerplatten 6 to each other.

While a Falzrollenlagerplatte 6 is fixed to the housing 1, the other by an adjustment in the direction of Axles 16 slidably mounted. This is on the sliding Falzrollenlagerplatte 6 parallel to the Achser, ^ 6 and in the middle

ein Schiebebolzen 22 befestigt, der einen quer angeordneten Stift 23 besitzt. Dieser Stift 23 greift in gewindeähnlichen Kurvenmit Raf tstellungen eines zyllnderförmigen, drehbaren Kurvenstückes 24 ein. Das Kurvenstück 24 ist in einer in das Gehäuse 1eingeschraubten Buchse 25 gelagert und nach außen in Achsrichtung mit einem Bolzen 26 versehen, an dem ein Handhebel 27befestigt ist. Die Buchse 25 ist durch Kontern mittels einer Nutmutter 28 gegen Verdrehen gesichert.a sliding bolt 22 attached, which has a transverse pin 23. This pin 23 engages in thread-like curves with Raf settings of a cyllium-shaped, rotatable curved piece 24 a. The cam piece 24 is mounted in a bushing 25 screwed into the housing 1 and provided outwardly in the axial direction with a bolt 26 to which a hand lever 27 is attached. The sleeve 25 is secured by countering by means of a nut 28 against rotation.

In the other side of the sleeve 25, a pierced threaded plug 29 is screwed. Between this threaded plug 29

und dem Kurvenstück 24 ist ein Tellerfedernpaket 30 eingesetzt.and the cam piece 24, a cup spring package 30 is inserted.

To secure the function of the device with differences in the Aufkanthöhe is in the range of the machine inlet <in the

feststehenden Falzrollenlagerplatte 6 ein vor den ersten Falzrollen 8 angeordnetes Aufgleitteil 31 befestigt. Das Aufgleitteil 31besitzt eine Rundung oder Aufgleitschräge. Die Unterseite des über das Blech gleitenden Schlittens 4 ist mit einerfixed Falzrollenlagerplatte 6 a mounted in front of the first folding rollers 8 Aufgleitteil 31 attached. The Aufgleitteil 31 has a rounding or Aufgleitschräge. The underside of the sliding over the sheet carriage 4 is with a

Plastic coating 32 provided. This will once improve the lubricity on the plate and on the other hand Scratch marks prevented. The sheet metal folding device connects one or more sheets to each other through a seam. The sheets can

dabei waagerecht, schräg oder senkrecht angeordnet sein, wie zum Beispiel bei Dacheindeckungen und Fassaden oder aberauch bei konvex gewölbten oder kugelförmigen Dächern und Kuppeln. Sind Haften zur Halterung der Bleche vorgesehen,werden auch diese mit gefalzt.be arranged horizontally, obliquely or vertically, as for example in roofing and facades or even in convex or spherical roofs and domes. If sticking is intended to hold the sheets, these are also folded.

But it can also workpieces, for example, individual parts of ventilation systems, are processed in which by Bending from sheet metal a rectangular or square cross section was made and by folding the sheet is joined. The device is placed with the rollers 5 on the sheet, so that the upstanding upstands of the sheet

zwischen den Rollen 5 und damit auch zwischen den Fa.'zrollen 8 angeordnet sind. Durch die elektrische Handbohrmaschine 14werden über das Kegelritzel 13 und das Getriebe 12 die Kettenräder 9 und die Ketten 10, die Falzrollen 8 angetrieben. Diebetween the rollers 5 and thus between the Fa.'zrollen 8 are arranged. By the electric hand drill 14 are driven by the bevel pinion 13 and the gear 12, the sprockets 9 and the chains 10, the folding rollers 8. The

Folding rollers 8 bend now by their different profile, the sheets in individual operations in succession, so that the

gewünschte Falz und damit die Verbindung der Bleche miteinander entsteht.desired fold and thus the connection of the sheets together arises.

The arranged in front of the first folding rollers 8 Aufgleitteil 31 prevents too deep penetration of the upstands of the sheets

zwischen die Falzrollen 8 und damit verbundene Betriebsstörungen. Durch das Aufgleitteil 31 ist die Vorrichtung auch beigrößeren Differenzen und Sprüngen in der Aufkanthöhe, wie sie zum Beispiel im Bereich von Querfalzen, insbesondere bei derbetween the folding rollers 8 and related malfunctions. Due to the Aufgleitteil 31, the device is also berigrößeren differences and jumps in the Aufkanthöhe, as for example in the range of Querfalzen, especially in the

Covering of domes by means of single leaves, occur, perfectly functional. The device moves through Rotation of the folding rollers 8 independently along the fold along the sheet. The carriage 4 slides with the underside on the sheets to be processed and keeps it during the bending operations

nieder. Die Plastbeschichtung 32 der Unterseite des Schlittens 4 verhindert das Ansetzen von Werkstoff, wie es insbesondere beider Verarbeitung von Aluminiumblechen am unbeschichteten Schlitten 4 geschieht und vermindert somit stark dielow. The plastic coating 32 of the underside of the carriage 4 prevents the application of material, as happens in particular when processing aluminum sheets on the uncoated slide 4 and thus greatly reduces the

Machining marks. The height adjustment takes place by the adjusting lever 18 with its cam 20 in an intended notch of the Rastringes 21 is locked. For movement of the actuating lever 18, this is pivoted against the spring action and then

verdreht. Durch das Verstellen des Stellhebels 18 wird die eine Achse 16 verdreht und somit über die Kurbelhebel 15 und dietwisted. By adjusting the adjusting lever 18, the one axis 16 is rotated and thus on the crank lever 15 and the

Coupling rod 17 and the two mounted on the other axis 16 crank lever 15. Thus, the frame-like bracket. 3

parallel zur Unterkante des Gehäuses 1 gehoben oder gesenkt.raised or lowered parallel to the lower edge of the housing 1.

Made according to the sheet thickness or the number of Rlecho to be folded or according to a bending forces Adjustment of the paired folding rollers 8 to each other. Depending on the material thickness or the fold thickness, the bushing 25 is rotated and thus adjusted axially to the housing 1. With the adjustment of the sleeve 25, the distance dor two Falzrollenlagerplatten 6 changes to each other. With the nut 28

wird durch Kontern die Einstellung der Buchse 25 zum Gehäuse 1 gesichert.is secured by locking the adjustment of the socket 25 to the housing 1.

Furthermore, depending on the bending forces occurring the threaded plug 29 is rotated, causing the bias of the Disk spring 30 changes and thus the bit yekräfte been absorbed elastically. Ultimately, a fine adjustment is possible, which is necessary and based on experience, to a regulatory To achieve folding. For this purpose, the hand lever 27 and via the bolt 26 and the curved piece 24 is rotated in the socket 25. Upon rotation of the cam piece 23, the pin 23 arranged transversely to the sliding pin 22 moves in the axial direction of the pin Slide bolt 22 and also adjusts the distance of the one mounted on the axes 16 movably Falzrollenlagerplatte 6 to the fixedly mounted on the housing 1 Falzrollenlagerplatte 6. With these adjustment is the Gap between the folding rollers 8 desired increased or decreased. The corresponding bending forces are determined by the Disc spring pack 30 not in a rigid form on the folding roller. 8 transmitted.

Claims

1. Apparatus for folding metal sheets, in particular for producing standing seams in roofing of various forms, other linings and ventilation systems consisting of a housing provided with handles, in which a guided by rolling on or on the plate, adjustable, frame-like bracket on the a sliding on the sheet, provided with a plastic coating carriage is arranged with two housed in the housing Falzrollenlagerplatten that receive the waves of different profiled, paired folding rollers, the folding rollers with each other by driven on the shafts sprockets and chains driven to rotate are, characterized in that in front of the first folding rollers (8) in the region of the device inlet to the fixed Falzrollenlagerplatte (6) fixed Aufgleitteil (31) is arranged.

2. Apparatus according to claim 1, characterized in that the Aufgleitteil (31) is provided with a rounding or Aufgleitschräge.

For this

3 pages drawings

Field of application of the invention

The invention relates to a device for folding sheet metal, in particular for producing standing seams in roofing, covering of domes or other coverings.

Characteristic of the known technical solutions

Double stand seaming machines are known from DD-WP 151263 and brochures from the company Schiebach Maschinenbau, Heilbronn, which are used in particular for producing standing seam roof coverings and facade cladding. These machines consist of a housing on which rollers are mounted, which are guided on the sheet to be processed. The case is equipped with handles and levers. The levers are used for height and lateral adjustment of the various profiled folding rollers. The folding rollers are arranged in pairs in bearing bodies and are driven by a vertically mounted on the housing motor with gear. The bearing bodies are supported by axles which are fixed in a housing and are compressed by a spring assembly. The distance of the folding rollers according to the sheet thickness to be processed, or according to the bending forces of the material occurring, that is, the lateral adjustment of the folding rollers and the bias of the spring assembly is continuously adjustable. The adjustment of the height of the folding rollers to the metal sheet is effected by means of a lever-operated crank mechanism with parallel guidance, which adjusts the axes of the rollers to the housing. Nach'eilig on these machines is once the great height by the vertical arrangement of the drive motor. In addition, they only have a constant operating speed. Furthermore, the function at height jumps of the upstands, as they z. B. arise in the covering of domes with individual sheets on the transverse folds, not guaranteed.

Object of the invention

The aim of the invention is to provide a device for folding sheet metal, which ensures a good quality in the processing of the sheet to be folded and is suitable for the production of standing seams on a variety of roofing or other coverings.

Explanation of the essence of the invention

The object of the invention is to develop a device for folding sheets, which can also be used for the covering of convex curved surfaces and applicable for different sheet thicknesses. According to the invention the object is achieved in that a fixed to the fixed Falzrollenlagerplatte Aufgleitteil is attached before the first folding rollers in the region of the device inlet.

The Aufgleitteil is provided with a rounding or Aufgleitschräge.

embodiment

Reference to an embodiment, the invention will be explained in more detail. In the accompanying drawings show:

Fig. 1: a side view of the device
Fig. 2: a Schnittdarstollung as a plan view
3 shows a Schnittdarstollung as a side view