How to automatically cut rigid material from the extruder?

If rigid material is produced in the extruder and then cut, there is a material jam during sawing. The rigid material cannot corrugate like a hose, for example. What can be done? You could slow down the extruder, which makes no sense at all. You could set up a buffer, which is never an economiccal solution. Or you could use a traveling head cutting machine. This takes over the solid material, but its saw head moves with the material and cuts during the movement. This prevents jams and speeds up production. A Metztner CCM 6, for example, makes up to 65 cuts per minute

Can a jam be avoided during further processing after output of rigid material from the extruder?

Yes, the traffic jam is avoidable. If solid profiles or plastic parts are produced in the extruder, they can of course not bend like a hose, for example, during the next work step. Stopping the extruder does not make economic sense. Intermediate storage also costs money. The solution is a traveling head processing machine. This takes over the rigid part, does not stop it for processing, but moves with the traveling head along with the material and processes it in the flow.

Can the post-processing of the extruder be automated when producing rigid material?

Yes, you can create a flowing process, but with rigid material you need a travelling head cutting machine. If the stiff material were to be transferred from the extruder to a normal cutting machine, a jam would form that would throw the extruder out of sync. After all, the rigid material cannot sag while the cut is being made. Such a jam can be avoided by using a traveling head cutting machine. With this machine, the solid profile or the rigid plastic object is transferred, but the cutting blade moves along with the profile and cuts at the specified points. This can be done at high speed. The Metzner CCM 6, for example, makes a maximum of 65 cuts per minute.

Can rigid profiles and plastic strips be cut automatically?

Yes, this is possible. It is important that a traveling head cutting machine is used. With this, the material is taken from the extruder and the cutting head moves with the profile to the defined processing points. This results in a flowing process. The extruder does not jam and no intermediate storage is necessary.

METZNER CCM 6: PROCESSING RIGID MATERIAL

Continuous cutting of rigid material from the extruder with travelling-head

CCM 6 machine for the cutting and processing of reinforced and rigid materials. Working downstream the extruder

Integration downstream the extruder

Processes rigid and / or reinforced materials in the rhythm of the extruder. Thanks to the travelling head, the knife follows the material

Burr formation close to zero

thanks to wet cuts

Knife of the travelling-head cutting machine Metzner CCM 6

65 cuts per minute

Very fast processing

As a travelling circular cutting machine, the Metzner CCM 6 cuts rigid profiles and plastics to length with particular precision and high speed. The knife unit moves with the material. It works at a speed adapted to the output of the extruder. This means that cutting does not cause any jams, and no intermediate storage of the rigid profiles or plastic parts is necessary. These can be processed immediately after being ejected from the extruder. The Metzner CCM 6 achieves 65 cuts per minute and a feeding speed of 1,000 mm | 3′ 3 ³/₈” per second.

CUSTOMIZATION

As with all Metzner machines, it is possible not only to customize the CCM models, but also to adapt them to your needs with standarized modules.

Gap detection

Thanks to the gap detection, the knife cuts exactly in the gap und thus produces a snagfree cut in the metal carrier. This improves the cut, and it spares the knife.

Profile clamping

Thanks to the profile clamping, the material is optimally fixed during the cut. Another advantage occurs when you use abrasive discs. In this case the cut’s surface is improved. Thus, the product is perfectly prepared for welding the sealing profiles without reworking.

Additional cutting tool

As standard, the Metzner CCM 6 travelling-head cutting machine is equipped with a place for an additional cutting tool. So, you can easily make it an allrounder that can also be used for materials without steel re-inforcement.

Cutting on the marks

A sensor detects marked areas and controls the cut to the mark. Of course, a required distance to the marker can be set.

Automatic scrap cut

A sensor detects marked and nonconforming material areas. The machine independently performs a waste cut. Thus, as part of the automatic quality control, material that does not meet the specification is not processed further .

Network

Network

With this tool, CCM machines send production status information to an external control station. Combined with Profibus connectors, they can be completely remote controlled.

E-Service Modul

Thanks to this tool, each CCM has optionally its own IP address or access to the mobile network. This is how Metzner Service supports you effectively and cost-efficiently with fault diagnoses, spare parts advice or repair recommendations.

TECHNICAL DATA

Performance data	Metzner CCM 6
Material dimension (depending on the selected configuration)	100 mm x 30 mm \| 3.94″ x 1.18″
Circular knife rotation speed	1,000 to 6,000 or 4,000 to 10,000
Circular knife penetration speed max.	30 m/min. \| 98’5″
Size increments	0.1 mm \| 0.004″
Feeding speed	60 m/min. \| 196’10″/min.
Max. cutting rate: circular knife cut (at cutting length 300 mm \| 11.81″)	65 cuts/min.
Max. cutting rate: die cut (at cutting length 300 mm \| 11.81″)	65 cuts/min.
Typically repeatable exactness (depending on material; tolerance +/- 0.5 mm \| 0.02″	+/- 0.1% to +/-0.2%

Technical data
Electrical connection	3~400 v; 50/60 Hz; 16 A or transformator
Compressed air connection (only necessary with die cut)	6 bar \| 87 PSI
Dimensions (L x W x H)	4,370 mm x 1,500 mm x 2,200 mm \| 14’4″ x 4’11” x 7’3″
Weight	1,500 kg \| 3,307 lbs

Eqipment
Control	SPS with color touch screen 5.7″
Gap detection	option
Additional cutting tool
Cutting based on marking
Automatic scrap cut	option
E-service module	option
Minimum quantity lubrication	option

DOWNLOADS

Metzner Product Catalogue Rubber and Plastics

The servo linear drive enables an optimally adjusted feed speed and speed of the knife at the same time. This means, for example, that the material can be fed in or the knife can exit at a lower feed rate. This significantly reduces burr formation. In addition, we have developed the Metzner CCM 6 so that you can set the blade speed individually either from 2,000 rpm to 6,000 rpm or from 4,000 rpm to 12,000 rpm. Yet the Metzner CCM 6 offers you even more advantages:

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COMPATIBLE WITH:

all tension-free working Metzner pre-feeders with inbuilt sensor for perfect speeding

every Metzner dereeler useable for tubes and specific materials

all Metzner cross conveyors, take-off units and tube coilers