CN211975305U

CN211975305U - Auxiliary device convenient to metering pump is changed in spinning production line

Info

Publication number: CN211975305U
Application number: CN202020393140.0U
Authority: CN
Inventors: 彭建国; 颜志杰; 何永强
Original assignee: Zhejiang Hengyou Chemical Fiber Co Ltd
Current assignee: Zhejiang Hengyou Chemical Fiber Co Ltd
Priority date: 2020-03-25
Filing date: 2020-03-25
Publication date: 2020-11-20
Anticipated expiration: 2030-03-25

Abstract

The utility model discloses an auxiliary device convenient for replacing a metering pump in a spinning production line, which comprises a shell, wherein a metering pump communicated with the shell is arranged above one end of the shell, a metering pump communicated with the shell is arranged below the other end of a hopper, a spiral rod is rotatably inserted in the length direction, one end of the spiral rod, which is close to the hopper, is a transmission end, the transmission end extends out of the shell and is connected with a transmission mechanism arranged below the spiral rod, and a sealing cover is abutted on the end surface of the transmission end; a hollow cavity is arranged in the screw rod, a heating pipe is inserted in the hollow cavity, and the air inlet and outlet ports of the heating pipe are matched with a first air exchange ring groove group arranged in the sealing cover; the spiral leaf of the spiral rod is provided with a freezing channel with a double-spiral structure, and the air inlet and the air outlet of the freezing channel are matched with a second air exchange circular groove group arranged in the sealing cover. Through above-mentioned structure make freezing pipeline and heating pipe can be protected by the hob of high strength to guarantee above-mentioned both can not warp because of the repeated condensation and the melting of the internal solution of casing.

Description

Auxiliary device convenient to metering pump is changed in spinning production line

Technical Field

The utility model relates to a textile apparatus, especially an auxiliary device convenient to metering pump is changed in spinning production line.

Background

The spinning method of chemical fiber mainly includes two main types of melt spinning method and solution spinning method. In the two modes, a metering pump is needed, so that the spinning quality is determined by the accuracy of the metering pump. The existing metering pump often has problems in the use process and needs to be shut down for replacement or maintenance. Before the metering pump is dismantled, the melt needs to be cooled and solidified to prevent the melt from flowing out to cause harm to workers and pollute the environment. The existing mode is that a freezing pipe is extended into a pipeline through which a melt passes, and then normal temperature air is introduced into the freezing pipe, so that the melt is cooled and solidified. However, the problem with this method is that the volume of the cooled melt is likely to change, which in turn causes the freezing pipe to bear huge stress extrusion, the freezing pipe is likely to deform under pressure or tension, and the cooling pipe is therefore blocked, which affects the cooling and solidification of the melt in the pipe. In addition, the deformation of the cooling tube may also result in the melt channel not working properly, so that the entire production line of the spinning process is affected.

Meanwhile, in order to ensure that the temperature of the melt can be kept constant when the melt enters the spinning box and prevent the influence on the spinning quality caused by uneven melt temperature, a heating pipe is also arranged in a pipeline through which the existing melt passes, and a high-temperature heat medium is introduced into the heating pipe so as to ensure that the melt in the extruder can be uniformly heated. However, in the actual use process, the heating pipe is the same as the freezing pipe, and is easy to deform after the melt is cooled due to the stress problem, so that the subsequent melt is heated unevenly.

SUMMERY OF THE UTILITY MODEL

In view of the above, an object of the utility model is to provide an auxiliary device convenient to metering pump is changed in spinning production line can bear the huge stress that the fuse-element solidifies and leads to and indeformable when frequently changing the metering pump, and then guarantees spinning production line's normal work.

In order to achieve the above purpose, the technical scheme of the utility model is that:

an auxiliary device convenient for replacing a metering pump in a spinning production line comprises a shell, wherein the shell is cylindrical, a hopper is arranged above the shell, a discharge port of the hopper is communicated with one end of the shell through a pipeline, a metering pump is arranged below the shell and is communicated with the other end of the shell, a screw rod is rotatably arranged along the axis direction of the shell, one end, close to the hopper, of the screw rod is a transmission end, the transmission end extends out of the shell and is connected with a transmission mechanism arranged below the screw rod, and a sealing cover capable of rotating relative to the transmission end is abutted to the end face of the transmission end; a hollow cavity is arranged in the screw rod along the axis direction of the screw rod, a heating pipe is arranged in the hollow cavity, and an air inlet port and an air outlet port of the heating pipe are fixedly arranged on the end surface of the transmission end and are matched with a first air exchange ring groove group arranged in the sealing cover; the spiral leaf of the spiral rod is provided with a freezing channel with a double-spiral structure, and the air inlet and the air outlet of the freezing channel are arranged on the end face of the transmission end and are matched with a second air exchange circular groove group arranged in the sealing cover.

Further, the surface of the transmission end is annularly provided with transmission teeth; the transmission mechanism comprises a motor, a first transmission gear is fixedly arranged on an output shaft of the motor, and the first transmission gear is meshed with transmission teeth annularly arranged on the surface of the transmission end.

Further, a control valve is arranged between the hopper and the shell.

Further, the heating pipe is of a double-spiral structure.

Further, the air return pipeline in the freezing pipe is positioned on one side close to the center of the screw rod, and the air inlet pipeline in the freezing pipe is positioned on one side far away from the center of the screw rod.

Furthermore, the outer side surface of the position where the transmission end is abutted to the sealing cover is annularly provided with a sealing snap ring with a U-shaped section, and the transmission end and the sealing cover are rotatably clamped in the sealing snap ring.

Further, the shell is externally coated with an insulating layer.

The working principle is as follows: when the measuring pump needs to be changed, the staff can make the fuse-element temperature reduce to below the melting point through letting in outside low temperature air in freezing the passageway to the solidification of fuse-element in the realization pipeline is with making things convenient for staff's dismouting measuring pump. When the solidified melt needs to be melted again, only a high-temperature medium needs to be introduced into the heating pipe to melt the coagulated spinning material again.

Has the advantages that: the utility model discloses in, the freezing pipeline sets up in the spiral leaf of hob because spiral leaf and hob are whole fixed connection, therefore the spiral leaf has compared in the unsettled intensity of stretching into to the pipeline of traditional cryovial has had very big promotion. Therefore, the normal work of the freezing pipeline can be ensured as long as the spiral blade is not deformed in the process of melt condensation, so that the normal work of the freezing pipeline is ensured. Simultaneously, because the freezing pipeline is double helix structure, consequently the freezing pipe can be bigger area of contact's the effect in the fuse-element, and then promoted the speed that the fuse-element condenses. In addition, the heating pipe is also arranged in the screw rod and protected by the screw rod, so that the heating pipe cannot deform due to pressure in the melt condensation process. Through above-mentioned structure, very big promotion the life of freezing pipeline and heating pipe, guaranteed the normal operating of whole spinning production line.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Reference numerals: 1. the shell 2, the hopper 3, the metering pump 4, the screw rod 41, the transmission end 42, the transmission gear 43, the screw blade 44, the freezing channel 45, the hollow cavity 5, the heating pipe 6, the transmission mechanism 61, the motor 62, the transmission gear 7, the sealing cover 71, the first air exchanging ring groove group 72, the second air exchanging ring groove group 8, the control valve 9, the sealing clamping ring 10 and the heat insulation layer.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

As shown in fig. 1, an auxiliary device for facilitating the replacement of a metering pump in a spinning line comprises a housing 1, which is of a cylindrical structure and one end of which is sealed. A hopper 2 for containing materials is arranged above the shell 1, and a discharge port below the hopper is communicated with one end of the shell through a pipeline. A metering pump 3 is arranged below the housing and is likewise connected to the other end of the housing via a line. The materials in the hopper enter the shell after being melted and then are extruded into the metering pump. To achieve this function, a screw rod 4 is rotatably disposed in the housing. The melted material, i.e. the spinning melt, is conveyed from the hopper into the metering pump by the rotation of the screw rod. Wherein, the end of the screw rod, which is positioned at one side of the hopper, is a transmission end 41, which extends out of the shell and is connected with a transmission mechanism 6 arranged below the screw rod so as to drive the screw rod to rotate through the transmission mechanism. In a specific embodiment, in order to ensure the stability of transmission, the transmission mechanism and the transmission end are in gear transmission. In detail, the surface of the driving end is annularly provided with a ring of driving teeth 42, and the driving mechanism comprises a motor 61 and a driving gear 62 arranged on the output shaft of the motor, and the driving gear is meshed with the driving teeth on the driving end. Meanwhile, one side opposite to the end face of the transmission end is also provided with a sealing cover 7 which is fixed and can rotate relative to the screw rod.

In addition, a freezing passage 44 for passing low-temperature air from the outside is provided in a double spiral structure in the spiral blade 43 on the surface of the spiral rod 4. Specifically, the air inlet and outlet ports of the freezing channel are arranged on the end face of the transmission end and are matched with the first air exchanging ring groove group 71 arranged on the sealing cover 7. That is, the freezing channel rotating with the screw rod exchanges low temperature air to the outside through the first ring groove set. Meanwhile, a hollow cavity 45 is further arranged inside the screw rod 4, a heating pipe 5 is inserted in the hollow cavity, an air inlet and an air outlet of the heating pipe are also fixed on the end face of the transmission end and are opposite to a second air exchange annular groove group 72 arranged on the sealing cover, and the heating pipe realizes the replacement of internal heating air through being matched with the second annular groove group so as to continuously and stably heat and preserve heat of the dissolved body.

As a further improvement of the above embodiment, a control valve 8 for controlling opening and closing between the hopper 1 and the casing 2 is provided therebetween.

As a further improvement of the above embodiment, the heating pipe 5 has a double spiral structure in order to more stably and uniformly radiate heat from the heated gas into the solution.

As a further improvement of the above embodiment, in order to improve the cooling effect of the low-temperature gas in the freezing duct 44 on the solution, the air return duct portion for returning air in the freezing duct 44 is located on the inner side relatively close to the center of the screw rod, and the air intake duct portion for taking air in is located on the outer side relatively far from the center of the screw rod.

As a further improvement of the above embodiment, in order to further improve the sealing performance at the contact surface between the driving end of the screw rod and the cap, a sealing snap ring 9 is circumferentially provided at the contact position between the driving end and the cap. Specifically, the sealing snap ring is U-shaped, and the transmission end and the sealing snap ring are rotatably clamped in the sealing snap ring.

As a further improvement of the above embodiment, in order to reduce the fluctuation of the solution temperature, the outside of the casing 1 is further covered with a heat insulating layer 10, which may be made of a material having a heat insulating effect, such as heat insulating cotton.

Claims

1. The utility model provides an auxiliary device convenient to metering pump is changed in spinning production line which characterized in that: the device comprises a shell, wherein the shell is cylindrical, a hopper is arranged above the shell, a discharge port of the hopper is communicated with one end of the shell through a pipeline, a metering pump is arranged below the shell and communicated with the other end of the shell, a screw rod is rotatably arranged along the axis direction of the shell, one end, close to the hopper, of the screw rod is a transmission end, the transmission end extends out of the shell and is connected with a transmission mechanism arranged below the screw rod, and a sealing cover capable of rotating relative to the transmission end is abutted to the end face of the transmission end; a hollow cavity is arranged in the screw rod along the axis direction of the screw rod, a heating pipe is arranged in the hollow cavity, and an air inlet port and an air outlet port of the heating pipe are fixedly arranged on the end surface of the transmission end and are matched with a first air exchange ring groove group arranged in the sealing cover; the spiral leaf of the spiral rod is provided with a freezing channel with a double-spiral structure, and the air inlet and the air outlet of the freezing channel are arranged on the end face of the transmission end and are matched with a second air exchange circular groove group arranged in the sealing cover.

2. An auxiliary device for facilitating the replacement of a metering pump in a spinning line as claimed in claim 1, wherein: the surface of the transmission end is annularly provided with transmission teeth; the transmission mechanism comprises a motor, a first transmission gear is fixedly arranged on an output shaft of the motor, and the first transmission gear is meshed with transmission teeth annularly arranged on the surface of the transmission end.

3. An auxiliary device for facilitating the replacement of a metering pump in a spinning line as claimed in claim 1, wherein: and a control valve is arranged between the hopper and the shell.

4. An auxiliary device for facilitating the replacement of a metering pump in a spinning line as claimed in claim 1, wherein: the heating pipe is of a double-spiral structure.

5. An auxiliary device for facilitating the replacement of a metering pump in a spinning line as claimed in claim 1, wherein: the air return pipeline in the freezing pipe is positioned at one side close to the center of the screw rod, and the air inlet pipeline in the freezing pipe is positioned at one side far away from the center of the screw rod.

6. An auxiliary device for facilitating the replacement of a metering pump in a spinning line as claimed in claim 1, wherein: the outer side surface of the position where the transmission end is abutted to the sealing cover is annularly provided with a sealing snap ring with a U-shaped section, and the transmission end and the sealing cover are rotatably clamped in the sealing snap ring.

7. An auxiliary device for facilitating the replacement of a metering pump in a spinning line as claimed in claim 1, wherein: the shell is coated with a heat insulation layer.