DE102007035308B3 - Extruded section profile centering device, has guiding rollers perpendicularly arranged at positioning wings, and funnel-shaped space formed from matrix to pressing jaw, where device is connected to extruded leading edges within machine - Google Patents

Abstract

The device has lower and upper guides vertically pivotable, and a lateral guide formed by two positioning wings. The lateral guide is horizontally pivotable and has guiding rollers perpendicularly arranged at the positioning wings in a direction of pressing jaw (2). A funnel-shaped space is formed from a matrix of an extruding machine (1) to the pressing jaw by pivotable elements of the device, where the device is connected to the extruded leading edges within the machine.

Description

The The invention relates to a device for profile centering - in particular when pressing - from Extruded profiles after their exit from the die, after the Preamble of claim 1.

Behind the die of an extruder to the anvil is located a short distance when pressing, d. H. at the beginning of production a new profile shape, by the emerging from the die profile preferably straight running, overcome must become. Only then, after leaving the pressed extruded profile From the press, the profile is in a known manner in a puller guided, so that the continuous promotion on a roller table exactly given.

On one usually conducted Air or water cooling after the exit of the / the profiles of an extruder is the completeness pointed.

Of the sensitive process of pressing a z. B. light metal profiles requires a corresponding experience of one on the extruder working worker, since at least the lateral breaking out of the Extruded profiles after exiting the die z. B. by means Crowbar or other suitable means must prevent.

the State of the art result in height differences between the Die and the press mouth by means of a pressable from below graphite plate regulated.

First behind the press, outside attached to the press mouth, currently provide sideways zuschwenkbare and vertically arranged rollers for the extrusion profile can be detected by a puller.

apart from the fact that the work of the worker when pressing a high level of experience requires manual intervention in the open press mouth for alignment the extruded profile run not dangerous and with industrial safety Provisions in themselves incompatible.

The following solutions can be taken from the prior art:
According to DE 614 455 C a method for pressing cable sheaths of metals is proposed in which the metal sheath is not formed on the cable core, but on a protective tube, cooled there and only then reduced to the diameter of the cable core. Then the cable can be rolled up with the cable jacket cooled down. After exiting the die, the cable is briefly guided by means of a protective tube, but there is no inevitable introduction into a nipple, which is arranged thereafter.

With DE 1 452 325 is a conveyor device for the removal of material at the output of continuous working fabric processing machines, especially at the output of extruders known. Here, a pressed profile - coming from the die - placed on a conveyor belt, the conveyor belt has an approximately 10% higher transport speed than the pressing speed. The conveyor belt is held in motion by means of different lengths of supporting roller sections, which are driven by a motor. Between these roller sections are parts of a conventional roller conveyor. It is not possible with this device to control pressure strands on exit from the die during pressing targeted.

To DE 101 10 035 B4 exists an outlet device of an extrusion press.

The From a die expiring product can by means of a link chain straight or curved to be pulled. In particular, it is also possible to draw brass wire and to wind up accordingly. It is additionally a handling robot required to manipulate and hold the link chain. For a safe detection of the products when leaving this Link chain is nothing said.

this awkward condition when pressing extruded profiles on one Extruder and a so far only insufficiently solved takeover of Extruded profiles outside a press, which is a disadvantage or as a criticism of the state of the art must now be remedied.

It is therefore an object of the invention, a device for profile centering preferably close to a die of an extrusion press, whereby a pressed profile is continuous and guided by all four sides, so that the pressing no manual influence on the part an active on the extruder needed to prevent the lateral breakout of the profile with the goal, the profile outside Centrally insert the press into a puller for further correct transport if necessary, by known cooling devices and in the direction of a roller table.

With the solution The task is to save labor costs and improved occupational health and safety Conditions are enforced.

According to the invention the object is achieved as follows, with respect to the basic inventive idea on the patent claim 1 ver is shown. The further embodiment of the invention results from the claims 2 and 3.

to Disclosure of the invention will follow further embodiments.

The funnel-shaped, in the direction of the press leading edge, the device widening Profile centering is on the one hand with its opposite end preferably positioned near the die of the extruder. She is there on the other hand firmly mounted on the press leading edge. Within her Funnels are all the essential elements that are pressed together a profile emerging from the die for direct and accurate adherence the short way to the press mouth, so a over a usual Roller table positioned puller the extruded profile as possible close to the press mouth outside can capture the extruder.

The Profile centering is constructed so that they initially have a short roller table with wear-resistant Metal rollers, the z. T. have a drive and an upper swivel guide having. In a novel and inventive way, the aforementioned short roller table at its end - in Direction press mouth - with a lower leadership, the one or more leadership roles has, equipped, the latter a defined swiveling can perform horizontal lateral lifting movement / can. In front of this / these are horizontal in particular by hydraulic means movable guide roller / n are laterally swinging leadership roles that a vertical Have alignment. The horizontal and vertical guide rollers are each at least in pairs, especially what the latter concerns, present. The lateral guide rollers are located called at the end of laterally pivotable guide arms or control wing, while facing each other over the lower guide rollers can be swiveled away. The pivoting is so far also with hydraulically movable Tools performed.

In Direction of material flow from the die of the extruder through the device according to the invention up to the mouth of the press are all protruding edges of the body chamfered thus a "tilting" of the expiring Extruded profiles is excluded.

The vertical and horizontal guide rollers can to protect the surfaces, in particular of light metal and non-ferrous metal profiles, with a technical textile be occupied.

The Invention will now be explained in more detail with reference to an expedient embodiment.

This should be on the 1 to 3 be resorted to.

It demonstrate:

1 : Front view on the press mouth of an extrusion press

2 : Detail "A" to the front view of an extruder

3 : Cut "BB" according to 1

The used reference symbols mean:

1

extruder

2

Press mouth

3

lower guide

4

upper guide

5

lateral guide

6

adjustment vane

7

hydraulic cylinders

8th

metal rollers

9

die

10

Press the front edge

11

pivot point

12

front leadership

According to 1 It can be seen that the profile centering, in contrast to the prior art, completely within an extruder 1 is possible. It requires no opening of the press mouth 2 to get one out of the die 9 Manually leading side strand of an extruded profile laterally, so that then at the press leading edge 10 and over the press mouth 2 Extruded profile transported to the outside is detected exactly by a puller. The usual further transport by cooling devices and the transport on a further adjoining roller table is not further subject of the invention and was therefore not shown.

The complete device for - automatic - profile centering, in particular in the phase of pressing acting, located in the extruder 1 between the die 9 and the inner side of the press leading edge 10 , She is firmly attached to the latter. The device has the matrix at the beginning 9 a funnel-shaped extension in the direction of the inner side of the press leading edge 10 so that there is sufficient freedom of movement to all existing elements to guide one out of the die 9 when pressing exiting profile to be able to pivot defined. The device is structured such that a lower guide 3 , consisting of z. B. hard chromed, driven and / or non-driven metal rollers, one before their leadership 12 , which are all arranged horizontally, a total of vertical and z. B. hydraulically raisable and lowerable. The front guide roller 12 is suitably provided with an abrasion-resistant, technical textile, so that the surfaces of scratch-sensitive profiles is not mechanically / optically impaired. An upper guide 4 in the form of a raised and lowered metal plate is opposite the lower guide 3 As a counterpart, so that a vertical "bleeding" of an extruded profile is suppressed in the phase of pressing.To horizontal guidance of an extruded profile are located on the short roller table of the device side hinged lateral guides 5 , Whose pivotability by hydraulically actuated control wing 6 is accomplished. The at the control wings 6 vertically arranged guide rollers do not allow a lateral "bleeding" of an extruded profile during pressing.

It is envisaged that the individual guides 3 . 4 . 5 independent of each other. The beginning of their action can be triggered for example by means of sensors installed in the device for profile centering.

• – Manuelle Einflussnahmen zur Zentrierung beim Anpressen neuer Profilformen entfallen
• – Kontinuierlicher Materialfluss nach Verlassen der Strangpresse durch exakte Übernahme durch einen Puller
• – Einsparung von Arbeitszeit und Vermeidung von Materialverlusten
• – Verbesserung des Arbeitschutzes

The advantages of the invention are seen therein:

• - Manual influence for centering when pressing new profile shapes eliminated
• - Continuous flow of material after leaving the extruder by exact takeover by a puller
• - Saving of working time and avoidance of material losses
• - Improvement of safety at work

Claims (3)

Device for profile centering - in particular during pressing - of extruded profiles after their exit from the die of an extruder, characterized in that a lower and an upper guide ( 3 . 4 ) vertically and one by two control wings ( 6 ) lateral guidance ( 5 ) located on the control wings ( 6 ) forward in the direction of a press mouth ( 2 ) has vertically arranged guide rollers, is horizontally pivotable and the device with its pivotable elements of a die ( 9 ) to the press mouth ( 2 ) forms a funnel-shaped space, wherein inside - within the press - at the press leading edge ( 10 ) is attached. Profile centering device according to claim 1, characterized in that the guide roller of the lower guide ( 3 ) and from the on the control wings ( 6 ) positioned vertical guide rollers are covered with a technical textile on their treads. Profile centering device according to claim 1, characterized in that the upper and lateral guides ( 3 . 4 . 5 ) is triggered by a sensor and they are independently hydraulically delivered / swiveled.