CN210012939U

CN210012939U - Composite spinning machine

Info

Publication number: CN210012939U
Application number: CN201920157998.4U
Authority: CN
Inventors: 王易意
Original assignee: Dongguan Yichang Plastics Textile Co Ltd
Current assignee: Dongguan Yichang Plastics Textile Co Ltd
Priority date: 2019-01-29
Filing date: 2019-01-29
Publication date: 2020-02-04
Anticipated expiration: 2029-01-29

Abstract

The utility model relates to the technical field of composite fiber production, in particular to a composite spinning machine, which comprises a first extruding mechanism, a second extruding mechanism and a spinning mechanism, wherein the first extruding mechanism comprises a first feeding component and a first extruding component, the first feeding component comprises a first hopper and a first weightless scale, the discharge end of the first feeding component is provided with a first metering pump, and the first metering pump is provided with a plurality of first conveying pipes communicated with the spinning mechanism; the second extrusion mechanism comprises a second feeding assembly and a second extrusion assembly, the second feeding assembly comprises a second hopper and a second weightless scale, a second metering pump is arranged at the discharge end of the second feeding assembly, and a plurality of second conveying pipes communicated with the spinning mechanism are arranged on the second metering pump. The utility model discloses a stable pressure in weightless balance and the measuring pump control extrusion subassembly to the guarantee spouts the shape in each region in spinning mechanism's spun composite fiber's cross-section is unified, improves mechanical properties such as composite fiber's intensity, toughness.

Description

Composite spinning machine

Technical Field

The utility model belongs to the technical field of composite fiber production technique and specifically relates to indicate a compound spinning machine.

Background

Composite fibers are one type of multicomponent fibers, a term for the rayon variety. Two or more unmixed polymer fibers exist on the same fiber section, the fibers are called composite fibers and are physically modified fibers developed in the 60's of the 20 th century. Bicomponent fibers having both polymer properties can be obtained using conjugate fiber manufacturing techniques. The composite fiber includes side-by-side type, sheath-core type, sea-island type, etc., and the fiber section has circular and irregular shape. The fiber has three-dimensional crimp, high fluffiness and coverage, and good conductivity, antistatic property and flame retardance.

Producing composite fiber, and feeding two melts of the A slice and the B slice into the same spinning pack for spinning and forming. However, since each melt is subjected to different pressures during extrusion, the shapes of the cross-sectional areas of the composite fiber are not uniform, and the mechanical properties such as strength and toughness of the composite fiber are reduced.

Disclosure of Invention

The utility model provides a composite spinning machine can ensure that the shape in each region in composite fiber's after the shaping cross-section is unified, improves mechanical properties such as composite fiber's intensity, toughness.

In order to solve the technical problem, the utility model discloses a following technical scheme:

a composite spinning machine comprises a first extrusion mechanism for heating an A slice into a melt and carrying out extrusion molding, a second extrusion mechanism for heating a B slice into a melt and carrying out extrusion molding, and a spinning mechanism for combining the A slice melt and the B slice melt, wherein the first extrusion mechanism comprises a first feeding assembly and a first extrusion assembly, the first feeding assembly comprises a first hopper communicated with the feeding end of the first extrusion assembly and a first weightlessness scale arranged at the bottom of the first hopper, the discharging end of the first feeding assembly is provided with a first metering pump, and the first metering pump is provided with a plurality of first conveying pipes communicated with the spinning mechanism; the second extrusion mechanism comprises a second feeding assembly and a second extrusion assembly, the second feeding assembly comprises a second hopper communicated with the feeding end of the second extrusion assembly and a second weightless scale arranged at the bottom of the second hopper, a second metering pump is arranged at the discharging end of the second feeding assembly, and the second metering pump is provided with a plurality of second conveying pipes communicated with the spinning mechanism.

Furthermore, the spinning mechanism comprises a spinning disk and a plurality of spinning nozzles fixed on the spinning disk, each spinning nozzle comprises an inner spraying pipe and an outer spraying pipe sleeved outside the inner spraying pipe, a gap is formed between the inner spraying pipe and the outer spraying pipe to form a skin spraying area, the inner spraying pipes are arranged in a hollow mode to form a spinning area, one end, far away from the first metering pump, of each first conveying pipe is connected with the inner spraying pipe, and one end, far away from the second metering pump, of each second conveying pipe is connected with the side wall of the outer spraying pipe.

Further, the length of the inner nozzle is shorter than the length of the outer nozzle.

Further, the first extrusion assembly comprises a first cylinder, a first screw rod rotatably arranged in the first cylinder and a first driving piece for driving the first screw rod to rotate, one end of the first cylinder is connected with the first metering pump, a first feeding port is formed in the side wall of the first cylinder, which is far away from one end of the first metering pump, and the first feeding port is communicated with the first hopper; the second extrusion assembly comprises a second machine barrel, a second screw rod arranged on the second machine barrel in a rotating mode and a second driving piece used for driving the second screw rod to rotate, one end of the second machine barrel is connected with a second metering pump, a second feed opening is formed in the side wall, away from one end of the second metering pump, of the second machine barrel, and the second feed opening is communicated with a second hopper.

Furthermore, one end, far away from the first metering pump, of the first screw rod protrudes out of the first barrel and is fixedly provided with a first driven wheel, the first driving piece comprises a first motor, a first driving wheel is fixedly arranged on an output shaft of the first motor, and the first driving wheel and the first driven wheel are connected through a first belt; the one end that the second screw rod kept away from the second measuring pump is outstanding the second barrel and is set up and be fixed with the second from the driving wheel, the second driving piece includes the second motor, be fixed with the second action wheel on the output shaft of second motor, pass through the second belt between second action wheel and the second follow driving wheel and connect.

Further, the first barrel is sleeved with a first heating pipe for heating the first barrel, and the second barrel is sleeved with a second heating pipe for heating the second barrel.

Furthermore, the first heating pipe is sleeved with a first heat preservation pipe, and the second heating pipe is sleeved with a second heat preservation pipe.

The utility model has the advantages that: the first weightless scale and the second weightless scale respectively control the feeding speed of the A slice and the B slice, and excessive melt of the A slice or melt of the B slice accumulated in the first extrusion assembly and the second extrusion assembly is avoided. And meanwhile, the extrusion flow rates of the A slice melt and the B slice melt are respectively controlled to be stable by utilizing the first metering pump and the second metering pump, and the first weightlessness scale, the second weightlessness scale, the first metering pump and the second metering pump are respectively used for controlling the pressure stability in the first extrusion assembly and the second extrusion assembly, so that the shapes of all areas of the section of the composite fiber sprayed by the spinning mechanism are uniform, and the mechanical properties such as the strength, the toughness and the like of the composite fiber are improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive labor.

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic structural view of a first feeding assembly of the present invention;

fig. 3 is a schematic structural view of a second feeding assembly of the present invention;

fig. 4 is a partial cross-sectional view of a spinneret according to the present invention.

Description of reference numerals: 10. a first feeding assembly; 11. a first hopper; 12. a first weightless scale; 20. a second feeding assembly; 21. a second hopper; 22. a second weightless scale; 30. a first extrusion assembly; 31. a first barrel; 32. a first screw; 33. a first motor; 34. a first drive wheel; 35. a first driven wheel; 36. a first belt; 37. a first heating pipe; 38. a first heat-insulating tube; 40. a second extrusion assembly; 41. a second barrel; 42. a second screw; 43. a second motor; 44. a second drive wheel; 45. a second driven wheel; 46. a second belt; 47. a second heating pipe; 48. a second insulating tube; 50. a first metering pump; 51. a first delivery pipe; 60. a second metering pump; 61. a second delivery pipe; 70. a spinning mechanism; 71. a wire spraying disc; 72. a spinneret; 721. an inner nozzle; 722. an outer nozzle; 723. a spray nozzle area; 724. and (4) a skin spraying area.

Detailed Description

In order to facilitate understanding of those skilled in the art, the present invention will be further described with reference to the following examples and drawings, which are not intended to limit the present invention.

As shown in fig. 1, the utility model provides a composite spinning machine, it includes the first extruding means (not labeled in the figure) that is used for heating into the melt and extrusion moulding with a section, is used for heating into the melt and extrusion moulding's second extruding means (not labeled in the figure) with B section and is used for spinning the mechanism 70 together with a section melt and B section melt. During specific work, the first extrusion mechanism extrudes the melt of the A section to the spinning mechanism 70, the second extrusion mechanism extrudes the melt of the B section to the spinning mechanism 70, and finally the composite fiber is spun from the spinning mechanism 70.

As shown in fig. 1, fig. 2 and fig. 3, the first extrusion mechanism includes a first feeding assembly 10 and a first extrusion assembly 30, the first feeding assembly 10 includes a first hopper 11 communicated with a feeding end of the first extrusion assembly 30 and a first weightless scale 12 disposed at a bottom of the first hopper 11, a first metering pump 50 is disposed at a discharging end of the first feeding assembly 10, and the first metering pump 50 is provided with a plurality of first conveying pipes 51 communicated with a spinning mechanism 70; the second extrusion mechanism comprises a second feeding assembly 20 and a second extrusion assembly 40, the second feeding assembly 20 comprises a second hopper 21 communicated with the feeding end of the second extrusion assembly 40 and a second weightlessness scale 22 arranged at the bottom of the second hopper 21, a second metering pump 60 is arranged at the discharging end of the second feeding assembly 20, and the second metering pump 60 is provided with a plurality of second conveying pipes 61 communicated with the spinning mechanism 70. During specific work, the first weightless scale 12 and the second weightless scale 22 are used for respectively controlling the feeding speed of the A slice and the feeding speed of the B slice, so that excessive A slice melt or B slice melt accumulated in the first extrusion assembly 30 and the second extrusion assembly 40 is avoided. Meanwhile, the first metering pump 50 and the second metering pump 60 are used for respectively controlling the extrusion flow of the melt of the section A and the melt of the section B to be stable, the first weightlessness scale 12, the second weightlessness scale, the first metering pump 50 and the second metering pump 60 are used for respectively controlling the pressure in the first extrusion assembly 30 and the pressure in the second extrusion assembly 40 to be stable, so that the shapes of all areas of the section of the composite fiber sprayed by the spinning mechanism 70 are uniform, and the mechanical properties of the composite fiber, such as strength, toughness and the like, are improved.

As shown in fig. 1 and fig. 2, the first extrusion assembly 30 includes a first cylinder 31, a first screw 32 rotatably disposed on the first cylinder 31, and a first driving element (not labeled) for driving the first screw 32 to rotate, one end of the first cylinder 31 is connected to the first metering pump 50, a first feeding port (not labeled) is disposed on a side wall of one end of the first cylinder 31, which is far away from the first metering pump 50, and the first feeding port is communicated with the first hopper 11. Specifically, during operation, the a-chip enters the first barrel 31 from the first hopper 11, is heated in the first barrel 31 to become a-chip melt, and is extruded to the spinning mechanism 70 through the rotation of the first screw 32.

One end of the first screw 32, which is far away from the first metering pump 50, protrudes out of the first cylinder 31, and is fixed with a first driven wheel 35, the first driving element includes a first motor 33, an output shaft of the first motor 33 is fixed with a first driving wheel 34, and the first driving wheel 34 and the first driven wheel 35 are connected through a first belt 36. Specifically, a belt is used to connect the first driving wheel 34 and the first driven wheel 35, and the belt transmission has a buffer function, so that the first screw 32 can be prevented from being damaged when being stuck by hard objects.

In order to increase the heating efficiency of the first barrel 31, a first heating pipe 37 for heating the first barrel 31 is sleeved outside the first barrel 31, wherein the first heating pipe 37 is heated by using a resistance wire. In order to avoid too rapid heat dissipation of the first heating pipe 37, the first heating pipe 37 is sheathed with a first heat-preserving pipe 38, wherein the first heat-preserving pipe 38 is made of a heat-insulating material.

As shown in fig. 1 and fig. 3, the second extrusion assembly 40 includes a second cylinder 41, a second screw 42 rotatably disposed in the second cylinder 41, and a second driving element (not labeled) for driving the second screw 42 to rotate, wherein one end of the second cylinder 41 is connected to the second metering pump 60, and a second feeding port (not labeled) is disposed on a side wall of the second cylinder 41 away from one end of the second metering pump 60, and the second feeding port is communicated with the second hopper 21. In operation, the B chips enter the second barrel 41 from the second hopper 21, are heated in the second barrel 41 to become B chip melt, and are then extruded to the spinning mechanism 70 through the rotation of the second screw 42.

One end of the second screw 42, which is far away from the second metering pump 60, protrudes out of the second cylinder 41, and is fixed with a second driven wheel 45, the second driving element includes a second motor 43, an output shaft of the second motor 43 is fixed with a second driving wheel 44, and the second driving wheel 44 and the second driven wheel 45 are connected through a second belt 46. The second driving wheel 44 and the second driven wheel 45 are connected by a belt, and the belt transmission has buffering, so that the second screw rod 42 can be prevented from being damaged when being stuck by hard objects.

In order to improve the heating efficiency of the second cylinder 41, a second heating pipe 47 for heating the second cylinder 41 is sleeved outside the first cylinder 31, wherein the second heating pipe 47 is heated by using a resistance wire. In order to avoid too rapid heat dissipation of the second heating pipe 47, a second heat-insulating pipe 48 is sheathed outside the second heating pipe 47, wherein the second heat-insulating pipe 48 is made of a heat-insulating material.

As shown in fig. 1 and 4, the spinning mechanism 70 includes a spinning disk 71 and a plurality of spinnerets 72 fixed on the spinning disk 71, the spinnerets 72 include an inner nozzle 721 and an outer nozzle 722 sleeved outside the inner nozzle 721, a gap is provided between the inner nozzle 721 and the outer nozzle 722 to form a sheath region 724, the inner nozzle 721 is hollow to form a core region 723, one end of each first delivery pipe 51 away from the first metering pump 50 is connected to the inner nozzle 721, and one end of each second delivery pipe 61 away from the second metering pump 60 is connected to a side wall of the outer nozzle 722. In particular operation, an a-slice melt is extruded from the core region 723. The melt of the slice B is extruded from the spinning zone 724 to form sheath-core composite fibers, and meanwhile, the spinning disk 71 is provided with a plurality of spinning nozzles 72, so that a plurality of composite fibers can be produced simultaneously, and the efficiency of producing the composite fibers is improved.

Preferably, the length of the inner nozzle 721 is shorter than that of the outer nozzle 722 in order to avoid the influence of uneven pressure on the cross-section of the composite fiber caused by melt extrusion of the B-chip.

In conclusion, the first weightlessness scale 12, the second weightlessness scale, the first metering pump 50 and the second metering pump 60 are adopted to respectively control the pressure stability in the first extrusion assembly 30 and the second extrusion assembly 40, so that the shapes of all areas of the cross section of the composite fiber sprayed by the spinning mechanism 70 are uniform, and the mechanical properties such as the strength and the toughness of the composite fiber are improved; meanwhile, the length of the inner nozzle 721 of the spinneret 72 is shorter than that of the outer nozzle 722, so that the influence on the shape of each area of the cross section of the composite fiber caused by uneven pressure applied to the melt of the B-chip during extrusion is avoided.

The above-mentioned embodiment is the utility model discloses the implementation scheme of preferred, in addition, the utility model discloses can also realize by other modes, any obvious replacement is all within the protection scope of the utility model under the prerequisite that does not deviate from this technical scheme design.

Claims

1. A composite spinning machine comprises a first extrusion mechanism for heating A slices into a melt and extruding and molding, a second extrusion mechanism for heating B slices into a melt and extruding and molding, and a spinning mechanism for combining the melt of the A slices and the melt of the B slices, and is characterized in that: the first extrusion mechanism comprises a first feeding assembly and a first extrusion assembly, the first feeding assembly comprises a first hopper communicated with the feeding end of the first extrusion assembly and a first weightless scale arranged at the bottom of the first hopper, the discharging end of the first feeding assembly is provided with a first metering pump, and the first metering pump is provided with a plurality of first conveying pipes communicated with the spinning mechanism; the second extrusion mechanism comprises a second feeding assembly and a second extrusion assembly, the second feeding assembly comprises a second hopper communicated with the feeding end of the second extrusion assembly and a second weightless scale arranged at the bottom of the second hopper, a second metering pump is arranged at the discharging end of the second feeding assembly, and the second metering pump is provided with a plurality of second conveying pipes communicated with the spinning mechanism.

2. The composite spinning machine according to claim 1, characterized in that: the spinning mechanism comprises a spinning disc and a plurality of spinning nozzles fixed on the spinning disc, each spinning nozzle comprises an inner spraying pipe and an outer spraying pipe sleeved outside the inner spraying pipe, a gap is formed between the inner spraying pipe and the outer spraying pipe to form a skin spraying area, the inner spraying pipes are arranged in a hollow mode to form a spinning area, one end, far away from the first metering pump, of each first conveying pipe is connected with the inner spraying pipe, and one end, far away from the second metering pump, of each second conveying pipe is connected with the side wall of the outer spraying pipe.

3. The composite spinning machine according to claim 2, characterized in that: the length of the inner nozzle is shorter than that of the outer nozzle.

4. The composite spinning machine according to claim 1, characterized in that: the first extrusion assembly comprises a first machine barrel, a first screw rod and a first driving piece, the first screw rod is rotatably arranged on the first machine barrel, the first driving piece is used for driving the first screw rod to rotate, one end of the first machine barrel is connected with a first metering pump, a first feeding port is formed in the side wall of one end, far away from the first metering pump, of the first machine barrel, and the first feeding port is communicated with a first hopper; the second extrusion assembly comprises a second machine barrel, a second screw rod arranged on the second machine barrel in a rotating mode and a second driving piece used for driving the second screw rod to rotate, one end of the second machine barrel is connected with a second metering pump, a second feed opening is formed in the side wall, away from one end of the second metering pump, of the second machine barrel, and the second feed opening is communicated with a second hopper.

5. The composite spinning machine according to claim 4, characterized in that: one end of the first screw rod, which is far away from the first metering pump, protrudes out of the first barrel and is fixedly provided with a first driven wheel, the first driving piece comprises a first motor, a first driving wheel is fixedly arranged on an output shaft of the first motor, and the first driving wheel and the first driven wheel are connected through a first belt; the one end that the second screw rod kept away from the second measuring pump is outstanding the second barrel and is set up and be fixed with the second from the driving wheel, the second driving piece includes the second motor, be fixed with the second action wheel on the output shaft of second motor, pass through the second belt between second action wheel and the second follow driving wheel and connect.

6. The composite spinning machine according to claim 5, characterized in that: the first barrel is sleeved with a first heating pipe for heating the first barrel, and the second barrel is sleeved with a second heating pipe for heating the second barrel.

7. The composite spinning machine according to claim 6, characterized in that: the first heating pipe is sleeved with a first heat preservation pipe, and the second heating pipe is sleeved with a second heat preservation pipe.