Air leakage prevention circular blowing filter element

Abstract

The utility model belongs to the technical field of spinning devices, and discloses an air leakage prevention circular blowing filter element which comprises a circular blowing filter element body and a corrugated pipe elastic device. The corrugated pipe elastic device comprises a compression spring and a sealing material; the sealing material wraps the peripheral surface of the compression spring to form a hollow cylindrical structure; the corrugated pipe elastic device is located under or over the annular blowing filter element, and the end, close to the annular blowing filter element, of the corrugated pipe elastic device is fixedly connected with the annular blowing filter element. The elastic force of the compression spring is greater than the gravity of the annular blowing filter element. When the annular blowing filter element longitudinally deforms and the sealing gasket deforms, the elastic force stored by the corrugated pipe elastic device can be applied to a place which is not tightly sealed, so that the air leakage of the annular blowing filter element can be effectively prevented.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of spinning device, and relates to a wind leakage prevention ring blowing filter core. BACKGROUND

[0002] In the spinning process of polyester industrial yarn, the polymer melt is sprayed from the spinneret hole at a certain flow rate, and then is cooled and solidified between the spinneret and the winding equipment to form the nascent fiber, which lays a good foundation for the subsequent drafting and setting process. The cooling and solidifying device is a cooling blowing device. The commonly used cooling device is generally a side blowing device and a ring blowing device.

[0003] Some special varieties such as high modulus low shrinkage yarn need low elongation and low dry heat shrinkage, so high-speed spinning is usually adopted to form high pre-oriented nascent yarn. Good nascent yarn performance plays a crucial role in the subsequent production, so high modulus low shrinkage yarn is preferably selected for ring blowing cooling. Compared with the side blowing device, the ring blowing device blows air from all around to the middle of the yarn bundle, and the cooling of each single yarn is more uniform.

[0004] The ring blowing device of the prior art is composed of a ring blowing cavity, a ring blowing filter core, a sealing gasket and an upper cover. The air conditioning air is preliminarily filtered by a horizontal filter screen, enters the filter core cavity through the air duct, forms a stable pressure in the cavity, and then the cooling air uniformly passes through the filter core under the action of the pressure and cools the yarn bundle from all around. If the upper end or the lower end of the filter core is not tightly sealed, the cooling airflow will be chaotic, which seriously affects the uniformity of the nascent yarn, causes broken ends and lint in the subsequent drawing process, and the product properties are often abnormal.

[0005] When the ring blowing filter core is installed and used, it is placed in the wind cavity positioning ring to ensure that the ring blowing filter core is installed in the center. The upper and lower ends of the ring blowing filter core must be sealed by sealing gaskets, and then the upper cover plate is pressed to ensure that the ring blowing filter core does not have the problem of air leakage. However, during daily use, the filter core may be deformed horizontally or vertically due to the pressure of the upper cover plate and cleaning after the machine is stopped. The filter core cylinder of the vertically deformed filter core is not of equal height, so the part of the filter core with low height may not be in contact with the sealing gasket or may not be in contact with the sealing gasket under sufficient pressure, thereby causing air leakage.

[0006] Patent CN102330160A discloses a ring blowing spinning sealing gasket, which effectively solves the problems of easy air leakage and easy deformation of the split sealing gasket, improves the safety of the sealing gasket, and prolongs the service life of the sealing gasket.

[0007] Patent CN102330160A discloses a new type of ring blowing air box cover. The device limits the position of the sealing gasket by an outer frame to prevent the sealing gasket from deforming and leaking air, thereby reducing the frequency of replacing the sealing gasket, prolonging the service life of the sealing gasket, and reducing the equipment maintenance cost.

[0008] Although the above two patents mainly solve the sealing problem of the ring blowing device and the spinning beam, they cannot solve the upper and lower sealing problem of the ring blowing filter core.

[0009] Patent CN206015159U discloses a spinning cooling ring blowing inner barrel, which is blocked by a sealing ring at the lower end of the inner wall, can avoid air leakage, uniform air outlet and prevent yarn doubling; the stainless steel outer wall and the copper inner wall not only make the ring blowing inner barrel washable and reusable, but also have better heat dissipation effect. Although the patent adds a sealing gasket to the upper and lower parts of the ring blowing filter core to solve the upper and lower sealing problem of the filter core, air leakage often occurs in the long-term use process due to the deformation of the ring blowing filter core, which causes great trouble to the spinning production.

[0010] Therefore, it is of great significance to study a ring blowing filter core that can prevent air leakage to solve the above problems. Content of the utility model

[0011] The utility model aims at solving the problems in the prior art and provides a ring blowing filter core that can prevent air leakage.

[0012] To achieve the above-mentioned purpose, the utility model adopts the following technical solutions:

[0013] A ring blowing filter core that can prevent air leakage comprises a ring blowing filter core and a corrugated tube elastic device; the corrugated tube elastic device comprises a compression spring and a sealing material; the sealing material is wrapped around the peripheral surface of the compression spring and forms a hollow cylindrical structure;

[0014] The corrugated tube elastic device is located directly below or directly above the ring blowing filter core, and one end of the corrugated tube elastic device close to the ring blowing filter core is fixedly connected to the ring blowing filter core; the elastic force of the compression spring is greater than the gravity of the ring blowing filter core.

[0015] The ring blowing filter core that can prevent air leakage and the ring blowing filter core of the prior art are installed and used in the same way, and after installation, the corrugated tube elastic device is compressed to store elastic force; if the ring blowing filter core is deformed longitudinally or the sealing gasket is deformed, the elastic force stored by the corrugated tube elastic device will be applied to the place where the sealing is not tight, which can effectively prevent air leakage of the ring blowing filter core.

[0016] As a preferred technical solution:

[0017] The wind leakage prevention ring blowing filter core is placed in the ring blowing air box, the top of the wind leakage prevention ring blowing filter core is sealed and connected with the upper pressing cover through a sealing gasket, and the bottom of the wind leakage prevention ring blowing filter core is sealed and connected with the air cavity positioning ring through a sealing gasket.

[0018] The wind leakage prevention ring blowing filter core is placed in the ring blowing air box, the top of the wind leakage prevention ring blowing filter core is sealed and connected with the upper pressing cover through a sealing gasket, and the bottom of the wind leakage prevention ring blowing filter core is sealed and connected with the air cavity positioning ring through a sealing gasket.

[0019] When the bottom of the wind leakage prevention ring blowing filter core is sealed and connected with the air cavity positioning ring through a sealing gasket, the compression spring is in a compressed state.

[0020] The wind leakage prevention ring blowing filter core is placed in the ring blowing air box, the top of the wind leakage prevention ring blowing filter core is sealed and connected with the upper pressing cover through a sealing gasket, and the bottom of the wind leakage prevention ring blowing filter core is sealed and connected with the air cavity positioning ring through a sealing gasket.

[0021] Beneficial effects:

[0022] After the wind leakage prevention ring blowing filter core is installed, the bellows elastic device is compressed to store elastic force, and if the ring blowing filter core is deformed in the longitudinal direction and the sealing gasket is deformed, the elastic force stored by the bellows elastic device is applied to the place where the sealing is not strict, so that the wind leakage of the ring blowing filter core can be effectively prevented. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is a schematic view of the wind leakage prevention ring blowing filter core.

[0024] Figure 2 It is an installation schematic view of the wind leakage prevention ring blowing filter core.

[0025] Among them, 1 is the wind leakage prevention ring blowing filter core, 2 is the ring blowing filter core, 3 is the bellows elastic device, 4 is the ring blowing air cavity, 5 is the upper pressing cover, 6 is the air cavity positioning ring, 7 is the sealing gasket I, and 8 is the sealing gasket II. DETAILED DESCRIPTION

[0026] The utility model is further described in connection with specific implementation. It should be understood that these examples are only used for illustrating the utility model and are not used for limiting the scope of the utility model. In addition, it should be understood that after reading the content taught by the utility model, those skilled in the art can make various changes or modifications to the utility model, and these equivalent forms also fall within the scope defined by the claims attached to the present application.

[0027] A wind leakage-proof ring blowing filter element, as shown in Figure 1 , Figure 2 , comprises a ring blowing filter element 2 and a bellows elastic device 3.

[0028] The bellows elastic device 3 comprises a compression spring and rubber; the rubber is wrapped around the circumferential surface of the compression spring and forms a hollow cylindrical structure.

[0029] The bellows elastic device 3 is located directly below the ring blowing filter element 2, and the upper end of the bellows elastic device 3 is fixedly connected with the bottom of the ring blowing filter element 2.

[0030] The elastic force of the compression spring is greater than the gravity of the ring blowing filter element 2.

[0031] The wind leakage-proof ring blowing filter element 1 is placed in a ring blowing air box, the top of the wind leakage-proof ring blowing filter element 1 is sealingly connected with an upper gland 5 through a sealing gasket I 7, and the bottom of the wind leakage-proof ring blowing filter element 1 is sealingly connected with a ring blowing air cavity positioning ring 6 through a sealing gasket II 8.

[0032] When the bottom of the wind leakage-proof ring blowing filter element 1 is sealingly connected with the air cavity positioning ring 6 through the sealing gasket II 8, the compression spring is in a compressed state.

[0033] The use process of the above device is as follows: as shown in Figure 2 , the wind leakage-proof ring blowing filter element 1 is installed in the ring blowing air cavity 4 and is sealingly connected with the top and bottom of the wind leakage-proof ring blowing filter element 1 through the sealing gasket I 7 and the sealing gasket II 8 respectively, after the installation is completed, the bellows elastic device will be compressed to store elastic force, if the ring blowing filter element is longitudinally deformed, the sealing gasket is deformed or the installation position is deviated, the elastic force stored by the bellows elastic device will be applied to the place where the sealing is not tight, which can effectively prevent the wind leakage of the ring blowing filter element.

Claims

1. A wind leakage resistant ring blow filter cartridge comprising a ring blow filter cartridge, characterized by, The wind-leakage-proof ring-blowing filter core further comprises a bellows elastic device; the bellows elastic device comprises a compression spring and sealing material; the sealing material is wrapped around the peripheral surface of the compression spring and forms a hollow cylindrical structure. The bellows elastic device is located directly below or directly above the ring-blowing filter core, and the end of the bellows elastic device close to the ring-blowing filter core is fixedly connected with the ring-blowing filter core; the elastic force of the compression spring is greater than the gravity of the ring-blowing filter core.

2. The wind leakage resistant ring blow filter element of claim 1, wherein, The bellows elastic device is located directly below the ring-blowing filter core, and the upper end of the bellows elastic device is fixedly connected with the bottom of the ring-blowing filter core.

3. The wind leakage resistant ring blow filter element of claim 2, wherein, The wind-leakage-proof ring-blowing filter core is placed in a ring-blowing air tank, the top of the wind-leakage-proof ring-blowing filter core is sealingly connected with an upper pressing cover through a sealing gasket, and the bottom of the wind-leakage-proof ring-blowing filter core is sealingly connected with an air cavity positioning ring through a sealing gasket. When the bottom of the wind-leakage-proof ring-blowing filter core is sealingly connected with the air cavity positioning ring through a sealing gasket, the compression spring is in a compressed state.

4. The wind leakage resistant ring blow filter element of claim 1, wherein, The sealing material is rubber.

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