Melt spinning machines

Details Melt spinning machines Melt spinning machines

1988-04-11

1991-09-24

Thurlow, Jeffery

Plastic article or earthenware shaping or treating: apparatus

Shaping orifice and downstream work contacting gaseous...

Orifice for filaments or fibers

4251925, 4253822, 425464, 425DIG13, 4253782, B29C 4730

Patent

active

050510886

ABSTRACT:
An improved spin head for a melt spinning machine is capable of being readily disassembled. The spin head is provided with a tubular sleeve member which defines an elongate open ended interior cavity oriented along the melt spinning axis and a core insert member removably received within this interior cavity. A spinneret is removably coupled to an end of the core insert member and a pump is fluid connected via polymer passageways defined in the insert member between a molten polymer supply apparatus (e.g., a screw extruder) and the spinneret. Heating elements (which, in the preferred embodiment, are integral with the sleeve member) maintain the various structural components at elevated temperatures so that, during operation, the polymer is likewise maintained at elevated temperatures sufficient to maintain it in a molten state. During a shut down period, however, the sleeve member may be heated by these same heating elements to prevent polymer solidification and thus permit the various component structures to be readily disassembled for cleaning. In such a manner, the down time for the melt spinning machine is minimized.

REFERENCES:
patent: 3130448 (1964-04-01), Tomlinson
patent: 3458900 (1969-08-01), Shinkai et al.
patent: 3655314 (1972-04-01), Lenk et al.
patent: 3762854 (1973-10-01), Kilsdonk
patent: 3864068 (1975-02-01), Flakne
patent: 3891379 (1975-06-01), Lenk
patent: 3947202 (1976-03-01), Goller et al.
patent: 4050866 (1977-09-01), Kilsdonk
patent: 4102625 (1978-07-01), Luthi et al.
patent: 4645444 (1987-02-01), Lenk et al.
patent: 4704077 (1987-11-01), Lenk

Affiliated with

Also associated with

Rating

Melt spinning machines does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Melt spinning machines, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Melt spinning machines will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1694553