CN213142298U

CN213142298U - Single suction hood for circular blowing

Info

Publication number: CN213142298U
Application number: CN202021160760.6U
Authority: CN
Inventors: 王振海; 王安然
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-06-19
Filing date: 2020-06-19
Publication date: 2021-05-07
Anticipated expiration: 2030-06-19

Abstract

The invention discloses a single suction hood for circular blowing, and belongs to the technical field of spinning equipment product structures in chemical mechanical products. The device comprises a suction cavity defined by a first shell and a second shell and a rectifying tube structure which is arranged in the suction cavity and mainly comprises a first sleeve and a second sleeve; the invention has the advantages of effectively cleaning monomers and oligomers generated in the spinning process, shortening the cleaning period of a cooling air net and a component, improving the quality stability of spinning fibers, stabilizing suction air, having small influence on tows, and effectively cleaning the monomers and the oligomers so as to be suitable for internal and external circular blowing and enable the tows to be stressed uniformly.

Description

Single suction hood for circular blowing

Technical Field

The invention relates to a single suction hood for circular blowing, which belongs to the technical field of equipment structures of chemical mechanical products, in particular to the technical field of structures of spinning equipment products in the chemical mechanical products.

Background

A spinning machine (spinning machine of chemical fibre) is a machine for spinningFiber-forming polymersSolution or melt forming filament machines. In the manufacture of chemical fibres, the spinning fluid is continuously extruded from the spinneret orifices, cooled by air or inCoagulation of water Solid bathThe mixture is solidified into filaments to form continuous strand silk or filaments; cooling formation is one of the important processes in filament production, and the cooling conditions are the determining factors of the solidification process, strongly influence the structure of the filaments and various distributions on the spinning line, and are the root of a series of non-uniformities. During melt spinning, the melt is sprayed out from the capillary holes of the spinneret plate, cooled, stretched and finally solidified into filaments. If the flow is divided according to the direction of the cooling air flow, the flow can be divided into side blowing and circular blowing.

When the side blowing is carried out, the melt trickle is blown by cooling air from one side of the filament bundle, the structure is simple, the operation is convenient, the cooling intensity is very high, but the cooling intensity near the air outlet is far higher than that far away from the air outlet, the cooling intensity is uneven, and the temperature of the windward surface and the leeward surface in the same section is uneven. And when the circular blowing is carried out, the filament is cooled in the form of circular wind. The cooling air is blown uniformly from the inner or outer periphery of the filament bundle, so that the blowing is divided into inner circular blowing and outer circular blowing. The blowing surface is very close to the strand silk, and the energy efficiency is greatly improved. The temperature of cooling air is low, the cooling conditions of all the wires are similar, in addition, the air supply area is small, the air speed is also lower than that of side blowing, and the energy is saved by more than 70 percent compared with the side blowing on the whole. With the development of fine denier, multi-end count, and new product development, numerous manufacturers compete to use circular blowing equipment.

During spinning, the volatile monomers are actually a generic term for low molecular weight, small molecular weight, and polymeric warheads. These monomers volatilize after the melt is extruded out of the spinneret and tend to form white smoke near the spinneret and adhere to the lower surface of the spinneret plate after cooling, resulting in deterioration of spinning conditions. If the monomer is not removed in time, the normal production is seriously influenced, the broken ends are more, the strength of the filament bundle is reduced, the evenness rate of the filament is reduced, the dyeing performance is poor and other adverse phenomena occur, and meanwhile, the operation environment of the production is also severe.

However, the existing suction hood is in a side suction type with a single side opening and is only applied to the cooling in a side blowing type; and the circular blowing equipment does not have a suction hood, if the single suction hood for side blowing is applied to circular blowing, the above problems are caused due to uneven stress of the tows, so that the meaning of uniform cooling of circular blowing is lost.

Disclosure of Invention

The invention provides a monomer suction hood for circular blowing, which aims to solve the problem that in the prior art, circular blowing equipment does not have the monomer suction hood, if a side-blowing monomer suction hood is simply applied to the circular blowing equipment, the cooling is uneven, monomers and oligomers generated in the spinning process can be effectively cleaned, the cleaning period of a cooling air net and a component is shortened, the quality stability of spinning fibers is improved, the suction air is stable, the influence on tows is small, and the monomers and the oligomers are effectively cleaned, so that the aim of enabling tows to be stressed uniformly by internal and external circular blowing is fulfilled.

In order to achieve the aim, the technical scheme of the invention is as follows:

a single suction hood for circular blowing is characterized by comprising a first shell, a second shell, an air outlet channel flange, a sealing gasket, an air outlet channel combining piece, a pipe clamp, a hinge combining piece, a lower cover, a first sleeve, a second sleeve and a support column;

the first shell and the second shell are of a structure which is arranged up and down, and the first shell is of a plate-shaped rigid structure with a trapezoidal appearance; the second shell is a groove-shaped rigid structure with a trapezoidal appearance and an upward opening; the first shell is embedded or sunk into the second shell;

at least one row of first through holes are arranged on the first shell in a mutually parallel state;

at least one row of second through holes are arranged on the groove-shaped bottom surface of the second shell in a mutually parallel state; the first through hole on the first shell and the second through hole on the second shell are correspondingly arranged, and the central lines of the opposite through holes are superposed;

the first through holes are respectively connected with second sleeves, and the second sleeves are superposed with the center lines of the correspondingly arranged first through holes;

the second through holes are respectively connected with first sleeves, and the center lines of the first sleeves and the second through holes which are correspondingly arranged are superposed;

the second sleeve is sleeved with the first sleeve, and an annular gap is formed between the second sleeve and the first sleeve;

the supporting column is positioned between the first shell and the second shell and arranged around the first through hole or the second through hole;

a plurality of third through holes are formed in the bottom surface of the second shell body along the groove-shaped lower bottom edge;

the second shell integrally extends a convex part along the upper bottom edge of the trapezoid, and the air outlet channel flange is of a rectangular annular plate structure and is fixedly connected to the end head of the convex part; the air outlet channel flange and the air outlet channel combined part are fixed into a whole; the sealing gasket is positioned between the convex part and the air outlet channel combining piece;

the air outlet channel combining part is of a hollow square-to-round tubular structure, and the pipe clamping ring is clamped on the square-to-round tubular structure;

the lower cover is integrally of a trapezoidal plate structure and is connected to the groove-shaped bottom surface of the second shell; a plurality of hinge connectors are symmetrically arranged along the trapezoidal waist of the lower cover, and the first shell and the second shell are fixedly connected into an integral structure through the hinge connectors.

The first shell and the second shell extend together along the lower bottom edge of the trapezoid to be connected with a rectangular space part, and the first through hole and the second through hole are positioned on the rectangular space part.

The first through holes and the second through holes are arranged in even number rows.

The number of the through holes in the same row of the first through holes and the second through holes is one or even.

The ratio of the diameter of the first through hole to the length of the lower bottom edge of the trapezoid of the first shell is 9 to 1.

The through holes in different rows of the first through holes and the second through holes are arranged in a staggered manner.

The second shell is symmetrically provided with a plurality of steam holes along the side of the groove shape.

The second shell is symmetrically provided with a plurality of air holes along the bottom surface of the groove-shaped side edge.

A boss is arranged on the groove-shaped bottom surface of the second shell along the extension of the trapezoidal waist.

The annular sleeving gap between the second sleeve and the first sleeve is opened upwards.

The technical scheme of the invention has the following advantages:

1. the upper sleeve and the lower sleeve are sleeved in the suction cavity, and a gap communicated with the suction cavity is formed between the upper sleeve and the lower sleeve. Different from the prior suction hood when in use, the side surface of the prior suction hood is provided with a suction port and sucks the tow towards one side, and the tow adopted by the invention passes through a rectifying pipe structure in a sleeve pipe mode; the rectifying pipe is connected with the suction cavity through a gap between the upper sleeve (the second sleeve) and the lower sleeve (the first sleeve), and the side walls of the upper sleeve and the lower sleeve guide and rectify suction airflow, so that uniform airflow can be formed around the tows, and monomers or oligomers around the tows can be sucked into the suction cavity and further extracted while the tows are uniformly stressed.

2. As the single suction hood adopts the circular upper through hole (the first through hole) and the circular lower through hole (the second through hole), the circle centers of the upper through hole and the lower through hole are superposed in the vertical direction, and a gap with the circular cross section is formed between the upper sleeve and the lower sleeve. Thus, the airflow is uniformly surrounded around the tows after passing through the gap, and the stress is more uniform.

3. As the single body suction hood adopts the thicker upper sleeve, the thinner lower sleeve and the upward opening of the gap between the upper sleeve and the lower sleeve. The tow is caused to move from top to bottom and oligomer is drawn around the tow downstream into the gap opening.

4. The single suction hood provided by the invention adopts the upper through holes and the lower through holes which are arranged in a row or a plurality of rows along a straight line, so that the single suction hood is suitable for the production line of the existing tows, a plurality of tows are produced simultaneously, and the single suction hood is used for suction.

5. The single suction hood has the advantages that the suction cavity body is provided with the plurality of suction ports, and the suction ports can be arranged on the same side of the rectifying pipe structure or symmetrically arranged on two sides of the rectifying pipe structure or arranged on the periphery of the rectifying pipe structure, so that the use is more convenient and flexible.

6. Because the single suction hood is provided with the vent hole communicated with the suction cavity on the hood body, the air inlet of the suction hood is not limited in the gap of the rectifier tube, and the air flow in the gap is relatively stable.

7. Because the cover body of the monomer suction hood is provided with the hot air holes for introducing hot air or steam into the suction cavity, the monomer is cooled and condensed in the suction hood, and the inside of the suction hood can be cleaned by the steam or the hot air.

Drawings

FIG. 1 is a schematic view of the structure of a spinning apparatus according to the present invention;

FIG. 2 is a schematic view of the overall structure of the single suction hood of the present invention;

FIG. 3 is an exploded view of a preferred embodiment of a unitary suction hood according to the present invention;

FIG. 4 is a schematic front view of the assembly of FIG. 3;

FIG. 5 is a schematic cross-sectional view taken along A-A of FIG. 4;

FIG. 6 is an exploded view of another embodiment of a unitary suction hood according to the present invention;

FIG. 7 is a front view of the assembly of FIG. 6;

fig. 8 is a schematic cross-sectional view along B-B of fig. 7.

Description of the figures

1. First shell

2. Second shell

3. Air outlet channel flange

4. Sealing gasket

5. Air outlet channel connector

6. Pipe clamp

7. Hinge connector

8. Lower cover

9. First sleeve

10. Second sleeve

11. And (4) a support column.

Detailed Description

The following detailed description of the present invention will be provided in conjunction with the accompanying drawings to facilitate a thorough understanding of the present invention.

As shown in fig. 1, 2, 3, 4, 5, 6, 7 and 8. A single suction hood for circular blowing comprises a first shell 1, a second shell 2, an air outlet channel flange 3, a sealing gasket 4, an air outlet channel connector 5, a pipe clamp 6, a hinge connector 7, a lower cover 8, a first sleeve 9, a second sleeve 10 and a support column 11;

the first shell 1 and the second shell 2 are arranged up and down, the first shell 1 is a plate-shaped rigid structure with a trapezoidal shape, and a protruding part integrally extends from the upper bottom edge of the trapezoid; the second casing 2 is a groove-shaped rigid structure with a trapezoid shape and an upward opening, wherein the groove-shaped structure is a closed structure with a bottom, side edges and an open top surface; the first shell 1 is embedded or sunk into the second shell 2, so that a hollow cavity is naturally formed between the first shell 1 and the second shell 2;

the first housing 1 and the second housing 2 are extended and connected with a rectangular space part along the lower bottom edge of the trapezoid, and the first through hole and the second through hole are positioned on the rectangular space part.

At least one row of first through holes are arranged on the first shell 1 in a mutually parallel state, for example, 1 row (fig. 3-5), 2 rows (fig. 6-8) or odd-numbered row and even-numbered row of first through holes can be arranged in sequence in parallel with the lower bottom of the trapezoid;

at least one row of second through holes are arranged on the groove-shaped bottom surface of the second shell 2 in a mutually parallel state; the first through holes on the first shell 1 and the second through holes on the second shell 2 are correspondingly arranged or are arranged in a one-to-one correspondence manner, and the central lines of the opposite through holes are superposed;

the first and second through holes are arranged in an even number of rows, e.g. 2 rows, 4 rows, etc. (fig. 6-8).

The number of the through holes in the same row of the first through holes and the second through holes is one or even, for example, 1; or e.g. 8, 12, etc. The first through holes have the same size as the through holes in the same row, and the second through holes have the same size as the through holes in the same row;

the ratio of the diameter of the first through hole to the length of the lower bottom edge of the trapezoid of the first shell 1 is 9 to 1, that is, the sum of the diameters of the 9 through holes is equal to the length of the lower bottom edge of the trapezoid of the first shell 1.

The through holes in different rows of the first through holes and the second through holes are arranged in a staggered mode (figure 6).

The first through holes are respectively connected with second sleeves 10, the second sleeves 10 are superposed with the center lines of the correspondingly arranged first through holes, and the second sleeves 10 are in sealing contact connection with the first shell 1;

the second through holes are respectively connected with a first sleeve 9, and the first sleeves 9 are superposed with the center lines of the correspondingly arranged second through holes; the first sleeve 9 is connected in sealing contact with the second housing 2;

the second sleeve 10 is sleeved with the first sleeve 9, and an annular gap is formed between the second sleeve and the first sleeve; i.e. the inner diameter of the second sleeve 10 is larger than the outer diameter of the first sleeve 9.

The supporting column 11 is located between the first casing 1 and the second casing 2 and is arranged around the first through hole or the second through hole or is vertically arranged; the supporting column 11 is a hollow tube structure or a circular tube structure, and the height or the length thereof is greater than the height or the length of the first sleeve 9 or the second sleeve 10, respectively.

A plurality of third through holes (vent holes) are formed in the bottom surface of the trapezoid lower bottom edge of the second shell 2 along the groove-shaped structure; the third through holes are arranged in rows and are uniformly distributed.

The second shell 2 integrally extends a convex part along the upper bottom edge of the trapezoid, and the air outlet channel flange 3 is of a rectangular annular plate structure (flange type) and is fixedly connected with the end head of the convex part; the air outlet channel flange 3 and the air outlet channel combining piece 5 are fixed into a whole; the sealing gasket 4 is positioned between the convex part and the air outlet channel combining piece 5;

the air outlet duct combining part 5 is of a hollow square-to-round tubular structure (the square-to-round structure is that one end of the air outlet duct combining part is square or rectangular, and the other end of the air outlet duct combining part is of a round tubular shape), and the pipe clamp 6 is clamped on the square-to-round tubular structure in a circular mode;

the lower cover 8 is of a trapezoidal plate structure as a whole, and protruding lug parts are arranged on two sides of the lower cover; a groove-shaped bottom surface connected to the second housing 2; a plurality of hinge connectors 7 are symmetrically arranged along the trapezoidal waist of the lower cover 8, and the first shell 1 and the second shell 2 are fixedly connected into an integral structure through the hinge connectors 7.

The second casing 2 is symmetrically provided with a plurality of steam holes along the side of the groove shape.

The second housing 2 is symmetrically provided with a plurality of air holes along the bottom surface of the groove-shaped side edge.

The groove-shaped bottom surface of the second shell 2 is provided with a boss extending along the trapezoidal waist.

The annular cup gap between the second sleeve 10 and the first sleeve 9 opens upwards.

In summary, the single suction hood for circular blowing provided by the present invention comprises a first casing 1 and a second casing 2, wherein the suction cavity is formed with a hollow suction cavity, the suction cavity is provided with a suction port (i.e. an air outlet channel connector 5 fixed on the air exhauster via a pipe clamp 6, and is hermetically connected and communicated with the suction cavity via an air outlet channel flange 3 and a gasket 4), the surfaces of the first casing 1 and the second casing 2 are respectively provided with a plurality of upper through holes (first through holes) and lower through holes (second through holes), each upper through hole corresponds to a lower through hole in the vertical direction, the upper through holes and the lower through holes are circular, the circle centers of the upper through holes and the lower through holes are vertically overlapped, the upper through holes are provided with upper sleeves (second sleeves), the lower through holes are provided with lower sleeves (first sleeves), a gap with a circular cross section is formed between the upper sleeves and the lower sleeves to form a rectifying pipe structure (i.e. the rectifying pipe structure comprises the upper, including last sleeve pipe and lower casing, and go up sleeve pipe and lower casing and establish each other cover in the suction cavity, and there is the UNICOM between the two suction cavity's clearance) to make even encircleing around the silk bundle behind the air current rethread clearance, make the atress more even. The suction cavity is provided with a vent hole (a third through hole) communicated with the suction cavity, so that the air inlet of the suction hood is not limited in the gap of the rectifier tube, and the air flow in the gap is relatively stable.

Go up the through-hole and pass through rectifier tube structural connection with lower through-hole, go up sleeve pipe and lower sleeve pipe and establish each other in the suction cavity, and there is the clearance of UNICOM suction cavity between the two. The upper casing is thicker, the lower casing is thinner, and the gap between the upper casing and the lower casing is opened upwards. The tow moves from top to bottom and oligomer is drawn downstream around the tow into the gap opening. Unlike the suction hoods of the prior art, which are used with suction openings on the side and which suck the tow towards one side, the tow according to the invention passes through a fairing structure in the form of a sleeve. The rectifying pipe is connected with the suction cavity through a gap between the upper sleeve and the lower sleeve, and the side walls of the upper sleeve and the lower sleeve guide and rectify suction airflow, so that uniform airflow can be formed around the tows, and monomers or oligomers around the tows can be sucked into the suction cavity and further sucked out while the tows are uniformly stressed.

The suction cavity is provided with hot air holes (steam holes) for introducing hot air or steam into the suction cavity, the monomer can be cooled and condensed in the suction hood, and the suction hood can be cleaned by the steam or hot air.

It should be noted that the rectifying tube structure is not limited to a cylindrical shape, but may have other cross-sectional shapes, such as a square shape, an oval shape, or a rectangular shape or a polygonal shape, and the rectifying tube structure is not limited to include only the upper sleeve and the lower sleeve, but may also be in the form of a multi-segment sleeve as long as the gas flow can be made to surround the tow uniformly.

It should be noted that the respective upper and lower through holes may be arranged in a line or in a plurality of lines, so as to be suitable for the existing production line of tows, a plurality of tows being produced simultaneously, and being sucked using the same suction hood. Meanwhile, the suction cavity can be provided with a plurality of suction ports, and each suction port can be arranged on the same side of the rectifying pipe structure or symmetrically arranged on two sides or arranged on the periphery.

Claims

1. A single suction hood for circular blowing is characterized by comprising a first shell (1), a second shell (2), an air outlet channel flange (3), a sealing gasket (4), an air outlet channel combining piece (5), a pipe clamp (6), a hinge combining piece (7), a lower cover (8), a first sleeve (9), a second sleeve (10) and a support column (11);

the first shell (1) and the second shell (2) are of a structure which is arranged up and down, and the first shell (1) is of a plate-shaped rigid structure with a trapezoidal appearance; the second shell (2) is a groove-shaped rigid structure with a trapezoidal appearance and an upward opening; the first shell (1) is embedded or sunk into the second shell (2);

at least one row of first through holes are arranged on the first shell (1) in a mutually parallel state;

at least one row of second through holes are arranged on the groove-shaped bottom surface of the second shell (2) in a mutually parallel state; the first through hole on the first shell (1) and the second through hole on the second shell (2) are correspondingly arranged, and the central lines of the opposite through holes are superposed;

the first through holes are respectively connected with second sleeves (10), and the second sleeves (10) are superposed with the center lines of the correspondingly arranged first through holes;

the second through holes are respectively connected with a first sleeve (9), and the first sleeves (9) are superposed with the center lines of the correspondingly arranged second through holes;

the second sleeve (10) is sleeved with the first sleeve (9) and an annular gap is formed between the second sleeve and the first sleeve;

the supporting column (11) is positioned between the first shell (1) and the second shell (2) and arranged around the first through hole or the second through hole;

a plurality of third through holes are formed in the bottom surface of the trapezoid lower bottom edge of the second shell (2) along the groove-shaped structure;

the second shell (2) integrally extends a convex part along the upper bottom edge of the trapezoid, and the air outlet channel flange (3) is of a rectangular annular plate structure and is fixedly connected to the end head of the convex part; the air outlet channel flange (3) and the air outlet channel combining piece (5) are fixed into a whole; the sealing gasket (4) is positioned between the convex part and the air outlet channel combining piece (5);

the air outlet channel connector (5) is of a hollow square-to-round tubular structure, and the pipe clamp (6) is annularly clamped on the square-to-round tubular structure;

the lower cover (8) is integrally of a trapezoidal plate structure and is connected to the groove-shaped bottom surface of the second shell (2); a plurality of hinge connectors (7) are symmetrically arranged along the trapezoidal waist of the lower cover (8), and the first shell (1) and the second shell (2) are fixedly connected into an integral structure through the hinge connectors (7).

2. The unitary suction hood for ring blowing as claimed in claim 1, wherein said first casing (1) and said second casing (2) are integrally extended along a lower bottom side of the trapezoid to connect a rectangular space portion on which said first through hole and said second through hole are located.

3. The single body suction hood for ring blowing as set forth in claim 1, wherein the first through holes and the second through holes are arranged in an even number of rows.

4. The single body suction hood for circular blowing as claimed in claim 1, wherein the number of the through holes provided in the same row of the first through holes and the second through holes is one or an even number.

5. A unitary suction hood for circular blowing according to claim 1, characterized in that the ratio of the diameter of the first through hole to the length of the lower base of the trapezoid of the first casing (1) is 9 to 1.

6. The single body suction hood for ring blowing as set forth in claim 1, wherein the first through holes and the second through holes are arranged in a staggered manner between different rows of the through holes.

7. The single body suction hood for circular blowing as claimed in claim 1, characterized in that the second casing (2) is symmetrically provided with a plurality of steam holes along the sides of the channel shape.

8. The unitary suction hood for circular blowing as claimed in claim 1, characterized in that the second housing (2) is symmetrically provided with a plurality of air holes along the bottom of the groove-shaped side.

9. A unitary suction hood for circular blowing as claimed in claim 1, characterized in that the channel-shaped bottom surface of the second casing (2) is provided with a projection extending along the waist of the trapezoid.

10. A unitary suction hood for annular blowing as claimed in claim 1, characterized in that the annular cup gap between the second sleeve (10) and the first sleeve (9) opens upwards.