Annular blowing cooling and curing device for polyester yarn pre-oriented yarn

Abstract

The utility model discloses a polyester yarn pre-oriented yarn circular blowing cooling and curing device which comprises a cooling cylinder, and a yarn inlet and a yarn outlet are formed in the two ends of the cooling cylinder respectively. A plurality of ventilation holes are formed in the cylinder wall of the cooling cylinder at intervals from top to bottom, and the ventilation holes penetrate through the cylinder wall of the cooling cylinder; the projections of all the upper and lower ventilation holes on the bottom of the cooling cylinder are obliquely arranged, and the inclination directions are the same; a cooling outer shell is further arranged outside the cooling cylinder, the cooling cylinder is rotationally installed in the cooling outer shell through a bearing, and a gap air cavity is formed between the cooling outer shell and the cooling cylinder. When air passes through the inclined ventilation holes, rotating thrust can be generated, the cooling barrel can be driven to rotate, and therefore efficient annular air blowing is conducted on polyester yarn for cooling and curing. All the upper and lower ventilation holes are formed in a circle along the cooling cylinder body and are arranged at equal intervals, so that the polyester yarns are uniformly cooled for multiple times; and multiple uniform cooling can be achieved by arranging few ventilation holes, the overall structure is simple, the machining cost is low, and the cooling device is suitable for popularization.

Description

Technical Field

[0001] This utility model belongs to the field of polyester filament processing technology, specifically relating to a device for blowing, cooling and curing pre-oriented polyester filament rings. Background Technology

[0002] Pre-oriented polyester yarn (POY) is a wound yarn obtained through high-speed spinning, typically between 3000 and 6000 meters per minute. During high-speed spinning, the filament is subjected to significant tension in the spinning field, causing the macromolecules to partially orient along the fiber axis, thus obtaining a partially oriented wound yarn. Compared to undrawn yarn, POY has a certain degree of orientation and good stability, and is often used in subsequent stretch false twist textured (DTY) processing.

[0003] The spinning cooling devices used in polyester production are divided into side-blowing cooling devices and ring-blowing cooling devices. The advantage of ring-blowing cooling devices is that the cooling air is blown evenly, resulting in better cooling effect. For example, Chinese patent document CN 218645864 U discloses a ring-blowing cooling device for polyester filaments. It includes a shell, the interior of which is provided with a chamber. The side wall of the shell is provided with a through hole for polyester filaments to pass through. The side wall of the shell is provided with an air inlet and an air outlet. The inner cavity of the shell is provided with an air distributor. The inlet of the air distributor is connected to the air inlet. Two or more outlets of the air distributor are connected to ring-blowing pipes. The ring-blowing pipes are arranged in a ring in the chamber and are provided with air blowing holes.

[0004] However, the above technical solution has the following defects: 1. After the polyester filament enters the shell, the air holes of the ring blow pipe are fixed air holes, which makes it difficult to achieve uniform air blowing to the polyester filament in four directions; therefore, in order to ensure more uniform air blowing to the polyester filament in four directions, a large number of ring blow pipes need to be arranged, and a large number of air holes are set on the ring blow pipes, resulting in high overall processing costs. Utility Model Content

[0005] This utility model provides a device for cooling and curing pre-oriented polyester yarn rings by blowing air. When the air passes through the inclined ventilation holes, it generates a rotational thrust, which drives the cooling cylinder to rotate, thereby providing efficient ring cooling and curing of the polyester yarn. All the ventilation holes are arranged in a circle around the cooling cylinder and are evenly distributed, providing multiple uniform coolings to the polyester yarn. Multiple uniform coolings can be achieved with fewer ventilation holes. The overall structure is simple, the processing cost is low, and it is suitable for widespread application, thus solving the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a polyester filament pre-oriented yarn ring blowing cooling and curing device, comprising a cooling cylinder, wherein the cooling cylinder is provided with a yarn inlet and a yarn outlet at both ends; the cooling cylinder wall is provided with a plurality of ventilation holes at intervals from top to bottom, the ventilation holes penetrating the cooling cylinder wall.

[0007] Preferably, all the ventilation holes, both upper and lower, are arranged in a ring around the cooling cylinder and are evenly spaced.

[0008] Preferably, all the ventilation holes, both upper and lower, are inclined on the projection of the bottom of the cooling cylinder, that is, the projection of the ventilation hole is not perpendicular to the tangent of the hole on the cylinder wall, and the inclination direction is the same.

[0009] Preferably, the ventilation holes are inclined downwards around the center of the cooling cylinder.

[0010] Preferably, the cooling cylinder body is further provided with a cooling outer shell, the cooling cylinder body is rotatably mounted in the cooling outer shell body via a bearing, and a gap air cavity is provided between the cooling outer shell body and the cooling cylinder body.

[0011] Preferably, the connection between the cooling outer shell and the cooling cylinder is sealed, and an air inlet pipe is provided at the upper end, which is connected to an external cooling mechanism, and an air outlet pipe is provided at the lower end.

[0012] Preferably, the gap air cavity contains multiple flow dividers, and the flow dividers are provided with multiple flow divider holes around the center.

[0013] Preferably, the cooling cylinder is provided with cover plates at both ends, and the wire inlet and the wire outlet are both provided on the cover plates. The cover plates are fixedly connected to the cooling cylinder by screws.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. When the wind passes through the inclined ventilation hole, it will generate a rotational thrust, which will drive the cooling cylinder to rotate, thereby providing efficient ring-blowing cooling and curing to the polyester filament.

[0016] 2. All the ventilation holes at the top and bottom are arranged in a ring around the cooling cylinder, and are evenly distributed to provide multiple uniform cooling to the polyester filaments.

[0017] 3. Multiple uniform cooling can be achieved with fewer ventilation holes. The overall structure is simple, the processing cost is low, and it is suitable for widespread application. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the front sectional view of the present invention;

[0019] Figure 2This is a schematic diagram of the ventilation hole structure of this utility model.

[0020] Figure 3 This is a top view schematic diagram of the flow divider plate and flow divider hole of this utility model.

[0021] In the diagram: 1. Cooling cylinder; 2. Wire inlet; 3. Wire outlet; 4. Ventilation hole; 5. Cooling outer shell; 6. Bearing; 7. Gap air cavity; 8. Air inlet pipe; 9. Air outlet pipe; 10. Flow divider; 11. Flow divider hole; 12. Cover plate. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1-3 This utility model provides a device for cooling and curing pre-oriented polyester yarn rings by blowing air, including a cooling cylinder 1. The cooling cylinder 1 has an inlet 2 and an outlet 3 at both ends. The cylinder wall of the cooling cylinder 1 is provided with a plurality of ventilation holes 4 at intervals from top to bottom, and the ventilation holes 4 penetrate the cylinder wall of the cooling cylinder 1. The polyester yarn enters the cooling cylinder 1 through the inlet 2 and exits through the outlet 3. During this process, cold air enters the ventilation holes 4 and then blows cold air into the cooling cylinder 1 to cool the polyester yarn. The polyester yarn is cooled multiple times by a ring of ventilation holes 4, and the cold air is blown downward through the outlet 3.

[0024] Specifically, all the ventilation holes 4 at the top and bottom are arranged in a circle around the cooling cylinder 1 and are evenly distributed; in this embodiment, all the ventilation holes 4 at the top and bottom are arranged in a circle around the cooling cylinder 1 and are evenly distributed, so as to provide multiple cooling to the polyester yarn.

[0025] Specifically, all the upper and lower ventilation holes 4 are inclined on the bottom projection of the cooling cylinder 1, that is, the projection of the ventilation hole 4 is not perpendicular to the tangent of the hole on the cylinder wall, and the inclination direction is the same. In this embodiment, since the upper and lower ventilation holes 4 are inclined on the bottom projection of the cooling cylinder 1 and the inclination direction is the same, when the wind passes through the inclined ventilation holes 4, a rotational thrust will be generated, which will drive the cooling cylinder 1 to rotate, thereby providing air blowing to cool and solidify the polyester yarn ring.

[0026] Specifically, the ventilation hole 4 is inclined downward around the center of the cooling cylinder 1; in this embodiment, the ventilation hole 4 is inclined downward around the center of the cooling cylinder 1, which facilitates all the cold air to be blown downward through the wire outlet 3.

[0027] Specifically, a cooling outer shell 5 is provided outside the cooling cylinder 1. The cooling cylinder 1 is rotatably mounted inside the cooling outer shell 5 via a bearing 6. A gap air cavity 7 is provided between the cooling outer shell 5 and the cooling cylinder 1. In this embodiment, the cooling cylinder 1 can rotate on the cooling outer shell 5 via the bearing 6, and the gap air cavity 7 provides a space for cold air to enter.

[0028] Specifically, the connection between the cooling outer shell 5 and the cooling cylinder 1 is sealed, and an air inlet pipe 8 is provided at the upper end, which is connected to an external cold air mechanism, and an air outlet pipe 9 is provided at the lower end. In this embodiment, cold air is introduced into the cooling outer shell 5 through the air inlet pipe 8 by an external cold air supply mechanism. In order to balance the air pressure in the gap air cavity 7, the air outlet pipe 9 is provided to blow out some of the excess cold air.

[0029] Specifically, the gap air cavity 7 contains multiple diversion plates 10, and the diversion plates 10 are provided with multiple diversion holes 11 around the center; in this embodiment, the cold air enters from the top and is diverted by the multi-layer diversion plates 10, and then enters the ventilation holes 4 between the multi-layer diversion plates 10, and then blows cold air into the cooling cylinder 1 to cool the polyester filament.

[0030] Specifically, the cooling cylinder 1 is provided with cover plates 12 at both ends, and the wire inlet 2 and the wire outlet 3 are both provided on the cover plates 12. The cover plates 12 are fixedly connected to the cooling cylinder 1 by screws. In this embodiment, the detachable cover plates 12 facilitate the cleaning of the inside of the cooling cylinder 1 after opening.

[0031] To facilitate understanding of the above-mentioned technical solutions of this utility model, the working principle or operation method of this utility model in actual process will be described in detail below.

[0032] Working principle: Polyester filaments enter the cooling cylinder 1 through the inlet 2 and exit through the outlet 3. During this process, cold air is supplied by an external cold air supply mechanism, which delivers cold air through the air inlet pipe 8 into the cooling outer shell 5. The cold air then enters from the top and is divided by multiple layers of diverter plates 10. It then enters the ventilation holes 4 between the multiple layers of diverter plates 10 and blows cold air into the cooling cylinder 1 to cool the polyester filaments. During this process, since the upper and lower ventilation holes 4 are inclined on the bottom projection of the cooling cylinder 1 and the inclination direction is the same, the air passing through the inclined ventilation holes 4 will generate a rotational thrust, which will drive the cooling cylinder 1 to rotate, thereby blowing air to cool and solidify the polyester filament ring. All the upper and lower ventilation holes 4 are arranged in a circle around the cooling cylinder 1 and are evenly distributed, providing multiple uniform cooling to the polyester filaments. The ventilation holes 4 are inclined downward around the center of the cooling cylinder 1, and the cold air is blown downward through the outlet 3. At the same time, in order to balance the air pressure in the gap air chamber 7, an air outlet pipe 9 is provided to blow out some of the excess cold air.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for blowing and cooling curing pre-oriented polyester yarn rings, comprising a cooling cylinder (1), characterized in that, The cooling cylinder (1) has a wire inlet (2) and a wire outlet (3) at both ends; the cooling cylinder (1) has multiple ventilation holes (4) spaced from top to bottom, and the ventilation holes (4) penetrate the cooling cylinder (1) wall.

2. The polyester filament pre-oriented yarn ring blowing cooling and curing device according to claim 1, characterized in that, All the ventilation holes (4) are arranged in a circle along the cooling cylinder (1) and are evenly distributed.

3. The polyester filament pre-oriented yarn ring blowing cooling and curing device according to claim 2, characterized in that, All the ventilation holes (4) are inclined on the bottom projection of the cooling cylinder (1), that is, the projection of the ventilation hole (4) is not perpendicular to the tangent of the hole on the cylinder wall, and the inclination direction is the same.

4. The polyester filament pre-oriented yarn ring blowing cooling and curing device according to claim 3, characterized in that, The ventilation hole (4) is inclined downward around the center of the cooling cylinder (1).

5. The polyester filament pre-oriented yarn ring blowing cooling and curing device according to claim 1, characterized in that, The cooling cylinder (1) is further provided with a cooling outer shell (5). The cooling cylinder (1) is rotatably mounted in the cooling outer shell (5) via a bearing (6). A gap air cavity (7) is provided between the cooling outer shell (5) and the cooling cylinder (1).

6. The polyester filament pre-oriented yarn ring blowing cooling and curing device according to claim 5, characterized in that, The connection between the cooling outer shell (5) and the cooling cylinder (1) is sealed, and an air inlet pipe (8) is provided at the upper end. The air inlet pipe (8) is connected to an external cold air mechanism, and an air outlet pipe (9) is provided at the lower end.

7. The polyester filament pre-oriented yarn ring blowing cooling and curing device according to claim 6, characterized in that, The gap air cavity (7) contains multiple flow dividers (10), and the flow dividers (10) are provided with multiple flow divider holes (11) around the center.

8. The polyester filament pre-oriented yarn ring blowing cooling and curing device according to claim 1, characterized in that, The cooling cylinder (1) has cover plates (12) at both ends. The wire inlet (2) and the wire outlet (3) are both located on the cover plates (12). The cover plates (12) are fixedly connected to the cooling cylinder (1) by screws.

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