Annular blowing air box capable of adjusting height of windless area

Abstract

The utility model relates to the technical field of chemical fiber spinning, and discloses an annular blowing air box capable of adjusting the height of a windless area, which comprises an air box, the air box is connected with an air conditioning pipe, a plurality of vertically arranged annular blowing cylinders are fixed in the air box, and a plurality of radially penetrating air holes are formed in the annular blowing cylinders; the outer wall of the upper end of the annular air blowing cylinder is sleeved with a wind shielding rubber sleeve, the wind shielding rubber sleeve and the annular air blowing cylinder are relatively fixed through friction resistance, the height of the wind shielding rubber sleeve is of various specifications, and the wind shielding rubber sleeve can be subjected to thermoplastic forming through a winding film. The height of the windless area can be adjusted by replacing the windshield rubber sleeves with different heights, so that the spinning process requirements of different yarns can be met; the wind shielding rubber sleeve can be preformed or formed through thermoplastic forming of a wrapping film, material taking is convenient, and operation is easy, convenient and flexible.

Description

Technical Field

[0001] The utility model relates to the technical field of chemical fiber spinning, in particular to a ring-blowing bellows capable of adjusting the height of a windless zone. Background Art

[0002] Air cooling is a critical step in the chemical fiber spinning process. Air cooling can be divided into ring-blowing and side-blowing. Ring-blowing is primarily used to produce fine, porous, and high-quality yarns. The quiet zone height is defined as the airless distance below the spinneret. This allows the nascent yarn to cool slowly, avoiding rapid cooling that can cause hardened yarn ends, leading to undesirable results such as drifting and broken yarns. The quiet zone height is set for each yarn variety. Currently, there are two methods for changing the quiet zone: one is to change the silicone pad on the ring-blowing bellows. However, if the quiet zone height is high, a very thick silicone pad is required. A thicker silicone pad results in greater variations in deformation between different parts, resulting in a poor sealing effect. The other method is to change the height of the connector between the component and the box body. However, this method requires disassembly and assembly of the component joint, which is recessed within the box body, which is heated to 290°C. This makes operation extremely difficult and, if the seal is not good, can easily lead to slurry leakage. Utility Model Content

[0003] The purpose of the utility model is to provide a ring-blowing bellows with an adjustable windless zone height. The height of the windless zone can be adjusted by replacing windshield rubber sleeves of different heights to meet the spinning process requirements of different yarns.

[0004] The windshield rubber sleeve can be prefabricated or thermoformed through stretch film, which is convenient for material removal and simple and flexible to operate.

[0005] The above technical objectives of the present invention are achieved through the following technical solutions:

[0006] A circular blowing bellows with adjustable no-wind zone height, comprising a bellows connected to an air conditioning pipe, a plurality of vertically arranged circular blowing tubes fixed in the bellows, and a plurality of radially penetrating air holes formed on the circular blowing tubes;

[0007] A windshield rubber sleeve is sleeved on the outer wall of the upper end of the ring-blowing cylinder, and the two are relatively fixed by friction resistance. The height of the windshield rubber sleeve has multiple specifications.

[0008] Through the above technical solution, cold air enters the bellows through the air conditioning pipe, and then enters the ring-blowing tube from all directions through the air holes, and cools the yarn entering the ring-blowing tube. The gas entering the ring-blowing tube flows out to the lower part of the ring-blowing tube. Since the upper part of the ring-blowing tube is provided with a windshield rubber sleeve, the air holes in this part are blocked, so the air in the bellows will not enter the upper area of ​​the ring-blowing tube, thereby preventing the yarn from cooling too quickly. The height of the windshield rubber sleeve (30) has multiple specifications. Different windshield rubber sleeves can be connected according to needs, so that the height of the windless zone can be adjusted to meet the spinning requirements of different yarns.

[0009] The utility model is further configured as follows: a height mark is provided on the windshield rubber sleeve. By providing the height mark, the height of the windshield rubber sleeve can be clearly seen, which makes it convenient for workers to replace the windshield rubber sleeve and is not easy to make mistakes.

[0010] The utility model further features a configuration in which the windshield rubber sleeve is thermoplastically formed using a stretch film. The stretch film is wound downward from the upper end of the ring-shaped blower tube until it reaches the desired height. The stretch film is then thermoplasticized, and after cooling, it hardens and secures to the outer wall of the ring-shaped blower tube. This facilitates material selection, allows for controllable and freely selectable height, and provides high practicality. The windshield rubber sleeve can be pre-molded or thermoplastic-formed.

[0011] The utility model is further configured as follows: a detachable box cover is provided above the bellows, a sealing gasket is sandwiched between the bottom of the box cover and the upper end surface of the bellows, and the upper end surface of the annular blower tube and the upper end surface of the windshield rubber sleeve are pressed against the sealing gasket.

[0012] A detachable box cover is provided to facilitate the replacement of the windshield rubber sleeve or the wrapping of the stretch film for thermoplasticization; a sealing gasket is provided to reduce the leakage of cold air in the bellows and reduce energy consumption.

[0013] The utility model is further configured as follows: the box cover is formed with a plurality of upwardly protruding stoppers, each stopper being coaxially arranged with a corresponding ring-blowing tube, so as to facilitate accurate connection with the upper spinneret part by arranging the stoppers.

[0014] The outstanding effects of the utility model are:

[0015] Compared with the existing technology, the height of the windless zone can be adjusted by replacing windshield rubber sleeves of different heights, which can meet the spinning process requirements of different yarns;

[0016] The windshield rubber sleeve can be prefabricated or thermoformed through stretch film, which is convenient for material removal and simple and flexible to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural diagram of the utility model;

[0018] Figure 2 for Figure 1 A partial enlarged view of A;

[0019] Figure 3 for Figure 1 About the cross-sectional view of BB;

[0020] Figure 4 This is a structural diagram of the windshield rubber sleeve of the present utility model.

[0021] Reference numerals: 10, bellows;

[0022] 20. Ring blower; 201. Air hole;

[0023] 30. Windshield rubber sleeve; 301. Height mark;

[0024] 40. Box cover; 401. Stopper; 41. Sealing gasket. DETAILED DESCRIPTION

[0025] The following embodiments are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0026] The following references Figures 1 to 4 The utility model is described as follows:

[0027] A circular blowing bellows with adjustable no-wind zone height, comprising a bellows connected to an air conditioning pipe, a plurality of vertically arranged circular blowing tubes fixed in the bellows, and a plurality of radially penetrating air holes formed on the circular blowing tubes;

[0028] A wind-shielding rubber sleeve is sleeved on the outer wall of the upper end of the ring-blowing cylinder, and the two are relatively fixed by friction resistance.

[0029] Cold air enters the bellows through the air conditioning duct and then enters the ring-blowing tube from all directions through the air holes, cooling the yarn entering the ring-blowing tube. The air entering the ring-blowing tube flows out to the lower part of the ring-blowing tube. Because the windshield rubber sleeve is installed on the upper part of the ring-blowing tube, the air holes in this part are blocked, so the air in the bellows does not enter the upper area of ​​the ring-blowing tube, thereby preventing the yarn from cooling too quickly. The height of the windshield rubber sleeve is available in various specifications. Different windshield rubber sleeves can be installed as needed, so the height of the windless zone can be adjusted to meet the spinning requirements of different yarns.

[0030] The windshield rubber sleeve is provided with a height mark. By setting the height mark, the height of the windshield rubber sleeve can be clearly seen, which is convenient for staff to replace the windshield rubber sleeve and is not easy to make mistakes.

[0031] The windshield rubber sleeve is thermoplastically formed using stretch film. The stretch film is wound downward from the upper end of the ring-shaped blower tube until it reaches the desired height. The film is then thermoplasticized. After cooling, the stretch film hardens and secures to the outer wall of the ring-shaped blower tube. This facilitates material retrieval, allows for controllable and arbitrarily selected heights, and provides high practicality. The windshield rubber sleeve can be pre-molded or thermoplastic-formed.

[0032] A detachable box cover is provided above the bellows, and a sealing gasket is sandwiched between the bottom of the box cover and the upper end surface of the bellows. The upper end surface of the annular blower cylinder and the upper end surface of the windshield rubber sleeve are pressed against the sealing gasket.

[0033] A detachable box cover is provided to facilitate the replacement of the windshield rubber sleeve or the wrapping of the stretch film for thermoplasticization; a sealing gasket is provided to reduce the leakage of cold air in the bellows and reduce energy consumption.

[0034] The box cover is formed with a plurality of upwardly protruding stoppers, each stopper being coaxially arranged with a corresponding ring-blowing tube. The stoppers can be conveniently and accurately connected to the upper spinneret part.

[0035] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications based on the above assumptions should also be regarded as within the scope of protection of the present invention.

Claims

1. A circular blowing bellows with adjustable height of a windless zone, comprising a bellows (10), characterized in that: A plurality of vertically arranged annular blowing cylinders (20) are fixed in the bellows (10), and a plurality of radially penetrating air holes (201) are formed on the annular blowing cylinders (20); A windshield rubber sleeve (30) is sleeved on the outer wall of the upper end of the ring-blowing cylinder (20); The height of the windshield rubber sleeve (30) has various specifications.

2. The circular blowing bellows with adjustable height of the windless zone according to claim 1, characterized in that: The windshield rubber sleeve (30) is provided with a height mark (301).

3. The circular blowing bellows with adjustable height of the windless zone according to claim 1, characterized in that: The windshield rubber sleeve (30) is thermoplastically formed by stretch film.

4. The circular blowing bellows with adjustable height of the windless zone according to claim 1, characterized in that: A detachable box cover (40) is provided above the bellows (10), and a sealing gasket (41) is clamped between the bottom of the box cover (40) and the upper end surface of the bellows (10).

5. The circular blowing bellows with adjustable height of the windless zone according to claim 4, characterized in that: The upper end surface of the annular blowing cylinder (20) and the upper end surface of the windshield rubber sleeve (30) are pressed against the sealing gasket (41).

6. The circular blowing bellows with adjustable height of the windless zone according to claim 4, characterized in that: The box cover (40) is formed with a plurality of upwardly protruding stoppers (401), and each stopper (401) is coaxially arranged with a corresponding ring-blowing cylinder (20).

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