DE8326965U1 - MULTIPLE REEL CUTTING MACHINE - Google Patents

Description

PATENTANWÄLTE '^ -v ¹ : ^: ^ ^S ~ ^{PA5SE 20}

DIPL.-ING. BODO THIELKING

DIPL.- ING. OTTO ELBERTZHAGEN rijT ^ S 1'- °! ** "^

' ³ OS-SC-CC' --C-rz H-AN 309- 93-302

^ AA-5A.-ü 13 258

_D a-ν September 19, 1983

Applicant: Hans Lenze GmbH & Co, KG / Hans-Lenze-Straße 1, 3251 Aerzen 2

Multiple roll cutting machine

The innovation relates to a slitter-winder having a plurality of _e arranged in parallel, mounted on both sides and enclosed by cutting material cutting rollers, whose axes of rotation lie in a plane and having a cutting device, the cutting portions are movable transversely to this plane. In such multiple roll cutting machines, the material is drawn in the form of a hose or roll on driven cutting shafts. It is divided into different widths using fixed or rotating knives of different shapes.

In a known slitter winder of this type, several cutting shafts are each supported on swiveling disks, from each of which several are in engagement with the cutting device, while other cutting shafts are removed and replaced of the removed new, unmachined cutting shafts can be used. The cutting shafts are mounted on the side arranged pivotable disks, which are pivoted between the machining operations. An increase in the number of cutting shafts is no longer possible in the known device because it

13 258

September 19, 19 83

this becomes very unwieldy. Another essential one ^! The disadvantage of the known device is that, with the known device, the accuracy of the cutting process cannot be increased at will. The storage in swivel disks has a negative effect here.

The innovation is based on the task of a winder of the kind presumed to be known to improve / that with a relatively simple construction a special true-to-size, precise cut is possible, while the set-up and changing times should be kept short.

This object is achieved according to the invention in that at least five cutting shafts are provided and are stationary are stored and the cutting areas are adjustable.

If there are at least five cutting shafts, it is possible to store these in a fixed position without therefore too long set-up and changing times when changing the cutting shafts develop. The proportion of set-up and change times is comparatively low compared to the processing time, that the set-up and change times are no longer disruptive. Instead, a fixed storage allows a special one precise machining. This machining accuracy is further increased by the fact that the cutting areas are adjustable are. The adjustment of the cutting areas can be different for different cutting shafts Times take place. It has the advantage that you can always work with particularly sharp knife areas without the knives have to be constantly replaced.

According to a further feature of the innovation are the cutting areas adjustable along a straight line that is parallel to the plane receiving the axis of rotation and perpendicular to it the axes of rotation.

- 3 -

13 258 September 19, 1933

According to a further feature of the innovation is the cutting device can be moved by means of a servomotor transversely to the plane receiving the axes of rotation of the cutting shafts.

Furthermore, it has proven to be useful that the cutting device is adjustable by means of a set screw.

In a preferred embodiment, they are each one : Cutting areas assigned to the cutting shaft can be adjusted and exchanged separately *

: Further features of the innovation result from the

> claims and the following description.

Because the cutting shafts are fixed in place, there is no bearing play worth mentioning and it is possible to carry out precise, plane-parallel cuts from soft material at the same time several times. For example, with the new multi-roll cutting machine it is possible to rubber-seal ^! cutting discs with a thickness of only 0.02 mm, with extremely high dimensional accuracy.

In the drawing, exemplary embodiments of the innovation are described in detail. Show it:

^: Figure 1 - a schematic representation of a first embodiment,

Figure 2 - a cutting shaft with the: drawn cutting material and with cutting knife in plan view,

, Figure 3 - the use of individual straight knife pieces instead of a continuous knife according to Figure 1,
Figure 4 - an arrangement according to Figure 3 with circular knives.

In a machine frame, not shown, with two

¹³ 258 September 19, 1983

_ 4 "

side, stationary and driven shaft receptacles, cutting shafts 1 are arranged parallel to one another, that their axes of rotation lie in a common plane. The cutting shafts 1 carry the pushed-on cutting material 2. In the embodiment according to FIG. 1, there is the cutting device from a one-piece continuous straight knife 3, which is attached to a slide guide 4 and 5 is and can be adjusted in height by means of an adjusting screw 6. This has the effect that the cutting bevel is adjustable and when becoming blunt in a different position for cutting

material comes. ■

The one not shown in detail, from the mutually displaceable Share 4 and 5 with existing slide guides

The knife 3 is arranged on a support 8. The longitudinal | and transverse guide of the support 8 consists of hardened Shafts 9 and 10 with ball bushings 11 and 12. As drive I A stepping motor 13 with a precision spindle 14 is used for the movement taking place in the longitudinal direction of the cutting shafts 1 provided, which moves the frame 15 in the longitudinal direction. As a drive for the transverse movement that performs the knife cut, a pneumatic actuating cylinder 16 is used, which ensures that the cutting knife 3 separates the cutting material 2 up to the cutting shaft 1.

In the embodiment of Figure 1 is parallel to the vertical row of cutting shafts 1 a further row of cutting shafts 1a with cutting material 2a arranged. Included the carriage guide 4 is designed so that it can accommodate a further knife 3a. The cut is then made alternately by the reciprocating movement of the actuating cylinder 16.

FIG. 2 shows the cutting shaft 1 with an elastic coating 17 over which the cutting material 2 is drawn.

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September 19, 1983

Furthermore, a section of the slide guide 4 with the knife arranged thereon is shown, which as a function of from the cutting movement, individual slices 18 from the cutting material separates and when cutting except for the elastic coating 17 of the cutting shaft 1 for a perfect severing immersed.

Indicated by dashed lines is an offset arrangement by means of a spacer disk 21, by excessively long or in diameter use oversized knives (19a and 20a) to make a large cutting bevel is achieved.

In the embodiment according to Figure 3 are on the slide guide 4 and 5 several short straight linear knives 19 are arranged. These knives can be exchanged individually.

FIG. 4 shows the arrangement of round knives 20 on the slide guides 4 and 5. By rotating the knives 20 when becoming blunt, the cutting bevel 7 is lengthened according to the diameter.

The pressure angle of the knife in the cutting material can also be changed by means of the adjusting screw 6. It is also possible to combine both straight knives 19 and circular knives 20 in a mixed manner to form a row of cutting shafts. The tandem arrangement shown in FIG. 1 is also possible.

Claims (9)

* ··· ■ · ···· iiitii 'PATENTANWÄLTE *' "'' sadderbaumer strasse 20 D-4800 BIELEFELD 1 DIPL.- ING. BODO THIELKING DIPL-, NG.OTTO ELBERTZHAGEN POST CHECK ACCOUNT: HAN 3O9193-3O2 ANWALTS Date: September 19, 1983 Protection claims: 1. Roll cutting machine with several, parallel to each other, Cutting shafts mounted on both sides and surrounded by cutting material, their axes of rotation in one plane lie, and with a cutting device, the cutting areas of which can be moved transversely to this plane, thereby characterized in that at least five cutting shafts (1) are provided and fixedly mounted, and the Cutting areas (3; 19; 20) are adjustable. 2. Roller cutting machine according to claim 1, characterized in that the cutting areas (19) along a straight line that is parallel to the plane receiving the axis of rotation and perpendicular to the axes of rotation runs. 3. Roll cutting machine according to claim 1 or 2, characterized in that the cutting device means a servomotor (16) transverse to the axes of rotation of the cutting shafts (1; 1a) receiving level is movable. 4. Roll cutting machine according to one or more of the claims 1 to 3, characterized in that the cutting device (3; 19; 20) by means of an adjusting screw (6) is adjustable. 5. Roll cutting machine according to one or more of the claims 1 to 4, characterized in that the cutting areas each assigned to a cutting shaft (1; 1a) (19; 20) are separately adjustable and exchangeable. I · · Ψ LJ C-E 258 September 19, 1983 6. Roll cutting machine according to one or more of the claims 1 to 5, characterized in that the cutting areas consist of straight knives (19), exist. 7. Roll cutting machine according to one or more of claims 1 to 5, characterized in that the cutting areas of circular knives (20) exist. 8. Roll cutting machine according to one: or more of claims 1 to 7, characterized in that on both sides of the cutting device (3; 3a; 4; 5; 6) cutting areas (3; 3a) arranged parallel to one another and at least five cutting shafts each (1; 1a) are provided in mutually parallel planes. 9. Roll cutting machine according to one or more of the claims 1 to 8, characterized in that that the cutter on a perpendicular guided to the level of the cutting shaft axes extending guide (10, 12) and by means of servomotor (i6) can be moved between the two parallel planes of cutting shafts (1; 1a).