CS221673B1 - Apparatus for spinning and cooling fibers or films of synthetic polymer melts - Google Patents

Abstract

The device for spinning and cooling the fibers or films of the melt of synthetic polymers consists of a spinning head and a cooling tub which is slidable in a vertical direction and is provided with an overflow drain at a periphery of its upper edge with a constant level of level into which the sealing frame engages at the bottom head of the spinning head.

Description

221673 3

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for spinning and cooling fibers or sheets of synthetic polymer melt consisting of a spinning head and a cooling bath.

In the preparation of synthetic fibers with a density of more than 1.7 dtex or in the production of films of synthetic polymers, more intensive cooling on a shorter path is required, hence cooling with an air-conditioned air is not sufficient. It requires high blowing speed and too long cooling paths in protective shafts installed vertically through two; The cost of producing these fibers is increased by investment, and therefore, in the case of intense cooling, spinning into the liquid medium, most often water.

A solution according to Australian Patent Publication No. 229 464 is known, whereby it relates to an apparatus in which cooling with water with adjustable water level distance from the spinning head is effected. The device is equipped with a guide element with the recommended angles of the filament to be pulled out of the filament. This device does not switch the fibrillation conditions of the polypropylene fibers.

In the spinning of polypropylene fibers, particular cooling conditions are required. It is desirable to shorten the distance of the cooling water level from the spinneret to a minimum so that the instantaneous cooling of the spinneret is initiated immediately below the nozzle. This requirement is also important in the spinning of profiled fibers, since, in the opposite case, in the later initiation of intensive cooling, undesirable changes and rounding of the profiled hairs occur. Completely approaching the level of the cooling line to the spinneret nozzle of the Australian Pat. file 229 464 does not.

Moreover, in the spinning of polypropylene fibers, the findings have been found to improve certain spinning process by blowing a water vapor or an inert gas under the spinning nozzle according to the invention of FR 1 289 911, thereby increasing the spinning certainty and continuation of the fiberization.

The aforementioned problem of immediate initiation of intensive cooling under the spinneret by maximizing the level of cooling water to the nozzle, as well as increasing the continuity and certainty of water vapor spinning is solved according to the new invention.

SUMMARY OF THE INVENTION The subject of the present invention is a fiber spinning and cooling apparatus, and a fiber-plastic meltblown of synthetic polymers consisting of a spinning head and a cooling tray disposed in a vertical direction on a base frame, wherein a sealing frame is formed around the die or nozzle , which is below the surface of the cooling bath in the cooling tray trough. Sealing the connection of the tub to the spinning head is converted to the principle of a water seal.

The carriage under the surface of the cooling bath is rotatable on the swinging arm attached by a guide roller for guiding the fiber. The semi-cylinder is operated manually by a lever mechanism. At the front edge of the bath there is a scraper roller to remove the coolant from the fiber. In the spinning process, a pair of squeegee rollers can be used in combination with a slotted air intake.

The advancement of the invention by improving the cooling effect by bringing the cooling medium to a spinneret as desired by the technology of the extruded polypropylene fibers in particular, avoids contact of the fiber with the surrounding environment, thereby reducing the need for air conditioning, thereby improving process fibrillation. that the development of water vapor cooling coils just below the nozzle has a beneficial effect on fiber formation and reduces the formation of polymer on the outlet side of the nozzle apertures.

FIG. 1 shows a spinning device consisting of a spinning head and a cooling tub with a pair of crimping rollers and a slotted inlet of the drying air, and FIG. 2 shows the same spinning device in a side view.

1 and 2, there is shown a spinning device for spinning and cooling a fiber or a synthetic polymer melting film consisting of a spinning head 200 and a cooling tray 100 disposed in a sliding vertical direction 131 on a base 160, with the spinner head 201 of the spinning head 200, a sealing frame 210 is formed around the spinneret 202 which extends below the surface of the cooling water in the chute 103 of the cooling tray 100. A guide roller 120 is mounted under the cooling water basin. a static wiper roller 125.

For coarser finenesses produced by the fiber, the cooling bath 100 may be provided with a pair of crushing rollers 131, 132, wherein the top crushing roller 131 is attached to the spinning head frame 200 and the bottom crushing roller 132 is attached to the cooling bath 100. The rollers 131, 132 are positioned above the overflow outlet chamber 101 of the cooling tank 100.

The bath 100 may be provided with a slotted air inlet 170. The illustration of the attached figures shows the continuity of the spinning head 200 as well as the shape and expedient arrangement of the cooling tub 100. The cooling tub 100 remains from the tank 102, which is provided with a regulated water inlet 104 and a water outlet 105. The discharge drain valve 106 is used to discharge the interruption tank.

Claims (4)

221673 bolted to a lifting beam 107 which is lifted by a motor drive 111 using a screw 112. The motor drive 111 is secured against overload by the clutch 114 with a shear fuse. The beam 107 with the tub 100 rests on the static nut 140 placed in the vial bed. The lower frame 150 of the frame 160 of the cooling tank 100 is provided with height adjustable feet 161 and is adapted to be able to use a pallet hydraulic. trolley for 100k repairs. The fiber is fed to the cutting line in the direction 180. At the start of the spinning, the tub is lowered to access the spinneret. The guide roller is raised by the control lever mechanism above the level of the cooling water. The fiber is fed under the guide roller and the cooling water sub-base is lowered. By means of a motorized drive, the cooling tank of the lift is lowered to the spinning head. It is sealed against the spinning head extending below the surface of the water in the overflow trough in the operating elevated position of the refrigerator. The spinning device as a whole or as individual parts - namely, the cooler and its constructional nodes, may be used in chemical-technological processes where intensive cooling by any liquid medium is required. The space above the liquid medium level can be minimized and hermetically sealed, whereby introducing an inert gas or other gaseous medium. OBJECT CLAIMS: 1. A device for spinning and cooling fibers or films of synthetic polymer melt consisting of a spinning head and a cooling bath, characterized in that the cooling bath (100) slidable in the vertical direction (181) is provided with an overflow drain channel (along the periphery of its upper edge). 103) with a constant surface height into which the sealing frame (210) extends, which is formed on the lower face (201) of the spinning head (200). 2. A device for spinning and cooling synthetic fibers or foils according to claim 1, characterized in that the cooling tank (100) at the outlet is fed with a static trowel (125). 3. Fiber spinning and cooling apparatus of synthetic polymer filaments or films according to claim 2, characterized in that milling rollers (131, 132) are arranged on the squeegee (125). 4. A device for spinning and cooling synthetic fibers fibers or foils according to claim 3, characterized in that a slotted air inlet (170) is provided by the rollers (131, 132). 1 sheet of drawings