Spinning device and method for melt-spun spandex

[0031] Example two

[0032] An embodiment of the present invention provides a melt-spun spandex spinning production equipment, including a screw extruder 1, a cross-linking reaction system, a metering pump system, a spinning box 6, a spandex spinning assembly 7, a side blowing system 8, and a tunnel 9. Oiling system 10, spandex winder 12;

[0033] The screw extruder 1 is connected to the cross-linking reaction system. The cross-linking reaction system includes a cross-linking reaction device 2 and a melt pipeline 3. The screw extruder 1 is connected to the cross-linking reaction device 2, and the cross-linking reaction device 2 passes through the melt. The pipeline 3 is connected to the metering pump system, which includes a metering pump 5 and a metering pump transmission device 4 connected to the metering pump. The metering pump is connected to the spandex spinning assembly 7 through the branch pipe 13, and the spandex spinning assembly 7 is arranged in the spinning box 6 , The spandex spinning assembly 7 is divided into two rows and staggered in the spinning box 6, located directly below the metering pump 5; directly below the spinneret outlet of the spandex spinning assembly 6, a side blowing system 8 is set, adjacent The air outlet side of the air blowing system 8 on both sides is set in reverse, and the lower part of the side air blowing system 8 is connected to the tunnel 9; the lower part of the tunnel 9 is provided with an oiling system 10; the lower part of each tunnel 9 is provided with four godet discs 11, of which two godet discs 11 A spandex winding head 12 is respectively provided in the lower part.

[0034] Each spinning box 6 contains 32 spandex spinning assemblies 7.

[0035] Example three

[0036] A production method of melt-spun spandex spinning includes the following steps:

[0037] Spandex chips are added to the screw extruder 1 through the hopper, and the spandex melt is extruded into the crosslinking reaction device 2 after being melted by the screw extruder 1;

[0038] The spandex melt is mixed with the crosslinking agent in the crosslinking reaction device 2 and then evenly distributed into the metering pump system through the melt pipeline 3;

[0039] The metering pump system distributes the melt quantitatively and evenly to the spandex spinning assembly 7 through the branch pipe 13;

[0040] The spandex spinning component 7 spins the melt and spins out the filament through the spinneret;

[0041] The yarn ejected from the spandex spinning assembly 7 is blown and cooled by the side blowing system 8;

[0042] The cooled silk passes through the tunnel 9 and is oiled by the oiling system 10;

[0043] The oiled filaments are evenly grouped by the godet 11, and each group of filaments forms a tow, and each tow is then guided through the godet to the spandex winding head 12 to be wound and formed.

[0044] Each spinning box 6 contains 24 spandex spinning assemblies 7.

[0045] Three godets 11 are arranged at the lower part of each tunnel 9. Among them, two godets 11 are arranged at the same height and a spandex winding head 12 is respectively arranged at the lower part of the two godets 11 at the same height.

[0046] Example four

[0047] A production method of melt-spun spandex spinning includes the following steps:

[0048] Spandex chips are added to the screw extruder 1 through the hopper, and the spandex melt is extruded into the crosslinking reaction device 2 after being melted by the screw extruder 1;

[0049] The spandex melt is mixed with the crosslinking agent in the crosslinking reaction device 2 and then evenly distributed into the metering pump system through the melt pipeline 3;

[0050] The metering pump system distributes the melt quantitatively and evenly to the spandex spinning assembly 7 through the branch pipe 13;

[0051] The spandex spinning component 7 spins the melt and spins out the filament through the spinneret;

[0052] The yarn ejected from the spandex spinning assembly 7 is blown and cooled by the side blowing system 8;

[0053] The cooled silk passes through the tunnel 9 and is oiled by the oiling system 10;

[0054] The oiled filaments are evenly grouped by the godet 11, and each group of filaments forms a tow, and each tow is then guided through the godet to the spandex winding head 12 to be wound and formed.

[0055] Each spinning box 6 contains 32 spandex spinning assemblies 7.

[0056] Four godet disks 11 are arranged at the lower part of each tunnel 9, and a spandex winding head 12 is respectively arranged at the lower part of two godet disks 11.

[0057] The present invention uses double-row spinning components, each with 24 or 32 heads, which is equivalent to two spinning boxes in the prior art. Under the premise of ensuring output, the manufacturing cost of the spinning box is reduced by 30%. The reduction of the heat dissipation area reduces the load of the cabinet heating system and saves about 40% of electric energy; the number of side blowing systems and tunnels is reduced by half, the manufacturing cost and air consumption are reduced by about 40%; the side blowing system is set reasonably and increased The operating space is reduced; the number of oiling systems is reduced by half; the number of guide wire disks can be reduced from 16 to 12 per line, and the manufacturing and use costs are reduced by 25%.