CN210974943U

CN210974943U - Channel device for circular blowing

Info

Publication number: CN210974943U
Application number: CN201921127295.3U
Authority: CN
Inventors: 刘学斌; 王亚伟; 杨志恒
Original assignee: SUZHOU MINZHE MACHINERY CO Ltd
Current assignee: SUZHOU MINZHE MACHINERY CO Ltd
Priority date: 2019-07-18
Filing date: 2019-07-18
Publication date: 2020-07-10
Anticipated expiration: 2029-07-18

Abstract

The utility model discloses a corridor device for circular blowing, including inner tube (1), inner tube (1) upper portion lets in the cooling air current, corridor device for circular blowing is still established including the cover inner tube (1) outside urceolus (2) and with return air duct (3) that urceolus (2) link to each other, urceolus (2) with form return air chamber (20) between inner tube (1), inner tube (1) bottom is provided with the intercommunication porous district (12) of return air chamber (20), the cooling air current flows through porous district (12) flow in return air chamber (20), and the warp return air duct (3) flow. The utility model discloses be provided with the inner tube and establish the urceolus at the inner tube outside with the cover, the air current flows in the urceolus from the porous district of inner tube bottom and discharges, can make atmospheric pressure and air current in the inner tube more stable, has improved the shaping quality of silk bundle.

Description

Channel device for circular blowing

Technical Field

The utility model relates to a spinning equipment field, in particular to corridor device for annular blowing.

Background

As is known in the art, the melt strand just extruded from the spinneret is in a high-temperature molten state, and is not solidified and formed, and the melt temperature is much higher than the ambient air temperature, and at this time, the melt strand is very thin and needs to be cooled by a circular blowing device, so as to provide a uniform and stable forming area for the melt strand.

The aforementioned circular blowing apparatus generally uses a blowing barrel to provide the cooling air flow. The duct device is a main component of short fiber circular blowing equipment, and the structure and the performance of the duct device directly influence the quality of the yarn, so that the duct device plays a very important role in the whole short fiber spinning engineering. Because the melt filament bundle is very fine and weak, if the air pressure inside the tunnel is unstable, turbulence, series flow and air outlet speed are unstable, the filament bundle is easy to shake and float inside the tunnel, and poor forming is caused.

The quality of the yarn in the existing spinning engineering is higher and higher, so the performance of the related equipment is continuously improved. In the annular blowing equipment, the key problem is how to rapidly form the tows in a stable air pressure environment inside a channel, air flow is very high in fluidity, the air flow is influenced by blocking or interference of any surrounding objects, and the problem of how to control the air speed and the stability of the air pressure in the channel is very difficult.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to the above-mentioned defect among the prior art, provide a circle is blown and is used corridor device, its stability that can improve wind speed, wind pressure in the corridor is favorable to improving the shaping quality.

In order to realize the utility model discloses the purpose, the utility model provides a corridor device for circular blowing, including the inner tube, inner tube upper portion lets in the cooling air current, corridor device for circular blowing still establishes including the cover the outside urceolus of inner tube and with the backwind pipe that the urceolus links to each other, the urceolus with form the return air chamber between the inner tube, the inner tube bottom is provided with the intercommunication the porous district in return air chamber, the cooling air current flows in the porous district the return air intracavity, and the warp the backwind pipe flows.

Furthermore, the utility model discloses still provide following subsidiary technical scheme:

the porous region includes a plurality of through-holes.

And an upper sealing plate and a lower sealing plate which seal the upper end and the lower end of the air return cavity are arranged between the outer cylinder and the inner cylinder.

An observation window is formed in the side face of the outer barrel, the channel device for circular blowing further comprises an observation plate detachably connected with the observation window, and the observation plate seals the observation window.

The observation plate is made of transparent materials.

The channel device for circular blowing also comprises a valve arranged on the return air pipe.

The valve is a clip type butterfly valve.

The channel device for circular blowing further comprises a shell connected to the lower end of the outer barrel, and a first pull-down door and a second pull-down door which are movably connected with the shell in a matched mode.

An outlet for the tows to flow out is formed between the first lower pull door and the second lower pull door, and the size of the outlet is adjustable.

The shell is provided with a first sliding groove and a second sliding groove which are oppositely arranged, the first sliding door is connected in the first sliding groove in a sliding mode, and the second sliding door is connected in the second sliding groove in a sliding mode.

Compared with the prior art, the utility model discloses a corridor device for annular is blown has the advantage to lie in:

1. the utility model is provided with the inner cylinder and the outer cylinder which is sleeved outside the inner cylinder, and the air flow flows into the outer cylinder from the porous area at the bottom of the inner cylinder and is discharged, so that the air pressure and the air flow in the inner cylinder can be more stable, and the forming quality of the tows is improved;

2. the valve is arranged on the air return pipe, so that the internal air pressure and air flow can be adjusted, the internal air pressure and air flow are more stable, and the occurrence of adverse situations is reduced;

3. by arranging the observation window, the forming condition of the interior can be monitored at any time, and the observation plate can be opened periodically to clean the tows accumulated in the interior, so that the corridor can be cleaned conveniently;

4. the bottom of the lower sliding door assembly is provided with the lower sliding door assembly, so that the size of the outlet can be adjusted, the disturbance of air flow at the outlet is reduced, and the forming reliability is further improved;

5. the device also has the characteristics of simple structure and convenient disassembly.

Drawings

Fig. 1 is a schematic structural view of a middle ring blowing duct device of the present invention.

Fig. 2 is an enlarged view of a portion a in fig. 1.

Fig. 3 is a schematic structural view of the center drop-down door assembly of the present invention.

Detailed Description

The following non-limiting detailed description of the present invention is provided in connection with the preferred embodiments and accompanying drawings.

As shown in fig. 1, a tunnel device for circular blowing according to a preferred embodiment of the present invention includes an inner tube 1, an outer tube 2 sleeved outside the inner tube 1, a return duct 3 connected to a side portion of the outer tube 2, and a lower pull gate assembly 4 connected to a bottom of the outer tube 2.

The upper end of the inner cylinder 1 is connected with a blowing cylinder (not shown), and the filament bundle sprayed by the spinneret plate enters the inner cylinder 1 after passing through the blowing cylinder. The positions and the connection modes of the blowing cylinder, the inner cylinder and the spinneret plate can adopt the related technology in the prior art.

The upper part of the inner barrel 1 is welded with a flange 10 which is used for connecting with other parts and can be conveniently hoisted. The inner cylinder 1 is inserted in the outer cylinder 2, the lower end of the inner cylinder is positioned in the outer cylinder 2, and a return air cavity 20 is formed between the inner cylinder 1 and the outer cylinder 2. Referring further to fig. 2, the bottom side of the inner cylinder 1 is provided with a plurality of fine through holes 11 to form a porous region 12 for the air to flow from the inner cylinder 1 to the return air chamber 20. The shape of the through hole 11 is not limited, and for the convenience of processing, the through hole 11 is preferably processed into a circular shape. The through holes 11 are used for communicating the inner barrel 1 and the outer barrel 2, so that sudden change of air flow can be prevented, air flow disturbance is reduced, and tow forming is facilitated.

The upper end and the lower end of the outer cylinder 2 are sealed with the inner cylinder 1 through an upper sealing plate 13 and a lower sealing plate 14, so that the air flow in the inner cylinder 1 can only enter the air return cavity 20 through the porous area 12.

The return air pipe 3 can be connected to the outer cylinder 2 in a welding mode and is communicated with the return air cavity 20, and the return air pipe 3 can be connected with an exhaust fan so as to smoothly exhaust the gas in the channel. The return air pipe 3 is connected with a valve 30 for adjusting the opening size of the outlet air, thereby adjusting the air flow velocity and the air pressure, and enabling the air flow in the inner cylinder 1 to be more stable. The valve 30 is preferably a clip-on butterfly valve.

The air current is great in disturbance when flowing into return air pipe 3 from return air chamber 20, restricts the great region of disturbance outside inner tube 1 through setting up inner tube 1 and urceolus 2, can improve the stability of inner tube 1 air current, atmospheric pressure greatly, improves the shaping quality.

An observation window 21 is arranged on the side surface of the outer cylinder 2 close to the lower part, an observation plate 22 is connected to the observation window 21, and the observation plate 22 is connected with a flange flanging 24 arranged on the periphery of the observation window 21 through a bolt 23. The viewing plate 22 may be made of a transparent material, such as a transparent acrylic plate. On one hand, the forming condition of the tows 1 in the channel can be conveniently and visually observed through the observation plate 22, and measures can be taken in time when bad conditions occur; on the other hand, after the observation plate 22 is removed, the residual waste wire in the channel can be conveniently cleaned, and the working efficiency is improved.

As shown in fig. 3, lower door assembly 4 includes a housing 40 attached to lower closure panel 14, and first and second

lower doors

41, 42 movably attached to housing 40, with first and second

lower doors

41, 42 preferably slidably coupled to housing 40. An outlet 43 is formed between the first and second pull-down

doors

41 and 42, and the size of the outlet 43 can be adjusted by changing the positions of the first and second pull-down

doors

41 and 42. Specifically, the left side and the right side of the housing 40 are respectively provided with a first sliding chute 44 and a second sliding chute 45 which are opposite to each other, and the first pull-down door 41 and the second pull-down door 42 are respectively inserted into the first sliding chute 44 and the second sliding chute 45 and can slide in the grooves, so that the size of the outlet 43 is changed. The tows 6 sprayed from the spinneret plate flow through the inner cylinder 1 and the shell 40 and then flow out through the outlet 43, the first pull-down door 41 and the second pull-down door 42 can prevent a large amount of cooling air from flowing out of the outlet 43 from the inner cylinder 1, and the poor conditions of yarn hanging, yarn doubling and the like caused by sudden change of air flow at the outlet 43 are reduced.

Sealing gaskets may be provided between the sight plate 22 and the flange 24 and between the lower closure plate 14 and the housing 40 to prevent air flow from leaking out of the connection and affecting the stability of the internal air flow.

In the channel device of the utility model, the inner part of the inner barrel 1 is polished, the corners are excessive through arcs, and the surface roughness value is controlled to be about Ra0.4; the through holes 11 formed in the porous region 12 need to be polished to remove acute angles; polishing the middle positions of the first and second pull-down

doors

41 and 42; the measures can prevent the yarn from being hung, ensure the smooth production and improve the quality of the formed tows.

The molten filament bundle enters the inner cylinder 1 from the filament spray plate and then flows out of the shaft device through the outlet 43. The route of the cooling air flow can refer to the path indicated by an arrow in fig. 1, the cooling air flow enters from the upper end of the inner cylinder 1 and flows to the return air cavity 20 at the porous area 12, and the air flow has certain cooling effect on the inner cylinder 1 in the process of the travel of the return air cavity 20, so that the tows 6 in the inner cylinder 1 can be cooled more quickly; the air current flows out from the return air duct 3 after passing through the return air chamber 20, and the valve 30 can adjust the size of the return air duct 3 channel.

The utility model discloses a corridor device for annular blowing possesses following advantage at least:

Claims

1. The utility model provides a corridor device for annular blowing, includes inner tube (1), inner tube (1) upper portion lets in cooling air current, its characterized in that: the channel device for circular blowing is still established including the cover the urceolus (2) of inner tube (1) outside and with return air duct (3) that urceolus (2) link to each other, urceolus (2) with form return air chamber (20) between inner tube (1), inner tube (1) bottom is provided with the intercommunication porous district (12) of return air chamber (20), the cooling airflow is through porous district (12) flow in return air chamber (20), and the warp return air duct (3) flow out.

2. A duct device for circular blowing according to claim 1, characterized in that: the porous region (12) comprises a plurality of through holes (11).

3. A duct device for circular blowing according to claim 1, characterized in that: an upper sealing plate (13) and a lower sealing plate (14) which seal the upper end and the lower end of the air return cavity (20) are arranged between the outer cylinder (2) and the inner cylinder (1).

4. A duct device for circular blowing according to claim 1, characterized in that: an observation window (21) is formed in the side face of the outer barrel (2), the channel device for circular blowing further comprises an observation plate (22) detachably connected with the observation window (21), and the observation plate (22) seals the observation window (21).

5. A duct device for circular blowing according to claim 4, characterized in that: the observation plate (22) is made of transparent materials.

6. A duct device for circular blowing according to claim 1, characterized in that: the air return pipe also comprises a valve (30) arranged on the air return pipe (3).

7. A duct device for circular blowing according to claim 6, characterized in that: the valve (30) is a clip type butterfly valve.

8. A duct device for circular blowing according to claim 1, characterized in that: the device also comprises a shell (40) connected to the lower end of the outer cylinder (2), and a first pull-down door (41) and a second pull-down door (42) which are movably matched and connected with the shell (40).

9. A duct device for circular blowing according to claim 8, characterized in that: an outlet (43) for the tows (5) to flow out is formed between the first downward-pulling door (41) and the second downward-pulling door (42), and the size of the outlet (43) is adjustable.

10. A duct device for circular blowing according to claim 9, characterized in that: the shell (40) is provided with a first sliding groove (44) and a second sliding groove (45) which are oppositely arranged, the first downward-pulling door (41) is connected in the first sliding groove (44) in a sliding mode, and the second downward-pulling door (42) is connected in the second sliding groove (45) in a sliding mode.