阅读说明：本技术 纺织条并卷联合机牵伸区清洁装置 (Cleaning device for drafting zone of textile strip lap combination machine ) 是由 郭永林 冯姗姗 于 2020-12-01 设计创作，主要内容包括：本发明涉及一种纺织条并卷联合机牵伸区清洁装置,包括设置在牵伸区上方的第一吸风罩和设置在牵伸区下方的第二吸风罩,第一吸风罩整体呈上大下小的形状；第一吸风罩的内侧空间为第一吸风管道,其侧壁上布置有多个水滴状流线型突起；第二吸风罩的内侧空间为第二吸风管道,其具有光滑的侧壁；水滴状流线型突起在第一吸风管道侧壁上呈阵列式排布,每一行中相邻两水滴状流线型突起之间具有一定的间距,相邻两行的水滴状流线型突起交错排列,且每一行中的水滴状流线型突起的下端与下一行的水滴状流线型突起的上端在同一水平线上。本发明的一种纺织条并卷联合机牵伸区清洁装置,能够及时吸走牵伸区的各种杂质,对于牵伸区的清洁有相当大的改善。(The invention relates to a cleaning device for a drafting zone of a textile strip lap-winder, which comprises a first air suction cover arranged above the drafting zone and a second air suction cover arranged below the drafting zone, wherein the first air suction cover is in a shape of a big top and a small bottom; the inner space of the first air suction cover is a first air suction pipeline, and a plurality of water drop-shaped streamline bulges are arranged on the side wall of the first air suction cover; the inner space of the second air suction cover is a second air suction pipeline which is provided with a smooth side wall; the water drop-shaped streamline bulges are arranged on the side wall of the first air suction pipeline in an array manner, a certain distance is reserved between every two adjacent water drop-shaped streamline bulges in each row, the water drop-shaped streamline bulges in every two adjacent rows are arranged in a staggered manner, and the lower ends of the water drop-shaped streamline bulges in each row are on the same horizontal line with the upper ends of the water drop-shaped streamline bulges in the next row. The cleaning device for the drafting zone of the textile strip lap combination machine can suck various impurities in the drafting zone in time, and greatly improves the cleaning of the drafting zone.)

1. A textile strip lap combination machine drafting zone cleaning device is characterized in that: the air draft device comprises a first air draft cover arranged above a draft zone and a second air draft cover arranged below the draft zone; a first air suction opening is formed in the lower opening of the first air suction cover; the first air suction cover is of a cover-shaped structure with a large upper part and a small lower part and is formed by sequentially connecting and enclosing a plurality of cover bodies; the inner space of the first air suction cover is a first air suction pipeline; a plurality of water drop-shaped streamline protrusions are arranged on the side wall of the first air suction pipeline; an opening above the second air suction cover is a second air suction opening, and the space inside the second air suction cover is a second air suction pipeline; the second air suction pipeline is provided with a smooth side wall;

the water drop-shaped streamline bulges are arranged on the side wall of the first air suction pipeline in an array manner, a certain distance is reserved between every two adjacent water drop-shaped streamline bulges in each row, the water drop-shaped streamline bulges in two adjacent rows are staggered, and the lower ends of the water drop-shaped streamline bulges in each row and the upper ends of the water drop-shaped streamline bulges in the next row are on the same horizontal line;

a first dust suction groove is arranged below the first air suction opening and is right opposite to the cleaning rod in the drafting zone;

a second dust suction groove is arranged above the second air suction opening and is right opposite to the drafting zone;

the orthographic projection areas of the first dust collection groove and the second dust collection groove cover the whole drafting area.

2. The cleaning device for the drafting zone of the textile ribbon lap combination machine as claimed in claim 1, wherein said first suction hood is formed by connecting four hood walls in sequence; the cover body wall is curved, the upper edges of the four cover body walls are at the same height, and the lower edges of the four cover body walls are at the same height.

3. A cleaning device for the drafting zone of a textile ribbon lap winder as claimed in claim 2, wherein the radius of curvature of the wall of said housing decreases from the first air suction opening upwards.

4. The drafting zone cleaning device of the textile ribbon lap combination machine as claimed in claim 3, wherein all the drop-shaped streamline protrusions distributed on the side wall of the first air suction duct are identical in shape and size, the lower edge of the cover wall is 20 cm-100 cm long, and the first air suction duct is 20 cm-100 cm high;

the shapes and the sizes of all the water drop-shaped streamline bulges distributed on the side wall of the first air suction pipeline are completely the same, the maximum length l of each water drop-shaped streamline bulge along the longitudinal direction of the first air suction pipeline is 20-40 mm, the maximum width w of each water drop-shaped streamline bulge along the transverse direction of the first air suction pipeline is 5-15 mm, the maximum height h of each water drop-shaped streamline bulge is 5-15 mm, and the maximum height of each water drop-shaped streamline bulge is located at the position 1/3 above the length direction of each water drop-shaped streamline bulge.

5. The drafting zone cleaning device of a textile ribbon lap combining machine as claimed in claim 4, wherein the minimum distance between two adjacent ones of said drop-shaped streamlined projections in each row is the maximum width w of each drop-shaped streamlined projection in the transverse direction of said first air-sucking duct.

6. The drafting zone cleaning device of the textile ribbon lap combination machine as claimed in claim 5, wherein the included angle α between the lower edge of the drop-shaped streamline protrusion and the side wall of the first air suction duct is 15-30 °, and the included angle β between the upper edge and the side wall of the first air suction duct is 45-60 °.

7. The cleaning device for the drafting zone of a textile ribbon lap machine as recited in claim 1, wherein said first air suction duct and said second air suction duct together form a main air suction duct.

8. The cleaning device for the drafting zone of a textile ribbon lap machine as claimed in claim 1, wherein the distance between said first dust suction groove and said cleaning rod is 2 cm-10 cm, and the distance between said second dust suction groove and said drafting zone is 2 cm-10 cm.

9. The drafting zone cleaning device of a textile ribbon lap machine as claimed in claim 8, wherein said first dust suction groove and said second dust suction groove are both rectangular, the cross section of said second air suction duct is rectangular, and the height of said second air suction duct is 20 cm-100 cm.

10. The device for cleaning the drafting zone of a textile ribbon lap winder as claimed in claim 1, wherein said drop-like streamline protrusions are made of polydimethylsiloxane; the water drop-shaped streamline protrusion and the cover body wall of the first air suction cover are integrally formed; the second air suction cover is made of stainless steel.

Technical Field

The invention belongs to the technical field of textile machinery, and relates to a cleaning device for a drafting zone of a textile strip lap combination machine.

Background

In the prior art, the drafting zone consists of three upper and three lower leather roller rollers, and the web is stretched by the speed difference between three stages of rollers (sets). The web enters between the roller and the leather roller, passes through the three-stage roller (group), is stretched into the required web according to the set draft multiple, and enters the next system after being output between the roller and the leather roller. In the process, the leather roller running at high speed rubs with the cotton net to generate static electricity, so that dust and impurities in the air are adsorbed on the leather roller. It clears up absorbent dust and impurity on the leather roller to adopt to shell the cotton stick at present consistently, but discovery in the actual production, shell the cotton stick and clear away absorbent dust and impurity on the leather roller in the clearance of back most gathering in shell cotton stick and leather roller, only few part is collected by the system of induced drafting, after a period, shell impurity and dust in cotton stick and the leather roller clearance and pile up the certain degree, make the cotton net twine on the leather roller very easily, will lead to strip and roll up the combine and frequently park, work efficiency descends by a wide margin, operation intensity increases, and finally influence the resultant yarn quality.

Disclosure of Invention

The invention aims to solve the problems in the prior art and provides a cleaning device for a drafting zone of a textile strip lap combination machine.

In order to achieve the purpose, the technical scheme adopted by the invention is as follows:

a cleaning device for a drafting zone of a textile strip lap-winder comprises a first air suction cover arranged above the drafting zone and a second air suction cover arranged below the drafting zone; a first air suction opening is formed in the lower opening of the first air suction cover; the first air suction cover is of a cover-shaped structure with a large upper part and a small lower part and is formed by sequentially connecting and enclosing a plurality of cover bodies; the inner space of the first air suction cover is a first air suction pipeline; a plurality of water drop-shaped streamline protrusions are arranged on the side wall of the first air suction pipeline; an opening above the second air suction cover is a second air suction opening, and the space inside the second air suction cover is a second air suction pipeline; the second air suction pipeline is provided with a smooth side wall; in actual work, the upper end of the first air suction pipeline is externally connected with a small negative pressure machine, so that air in the air suction pipeline is in a negative pressure state, the lower end of the second air suction pipeline is externally connected with the small negative pressure machine, impurities can be discharged, the second air suction pipeline and the external negative pressure machine of the first air suction pipeline work simultaneously, and the power and the wind power are smaller than those of the external negative pressure machine of the first air suction pipeline;

the water drop-shaped streamline bulges are arranged on the side wall of the first air suction pipeline in an array manner, a certain distance is reserved between every two adjacent water drop-shaped streamline bulges in each row, the water drop-shaped streamline bulges in two adjacent rows are staggered, and the lower ends of the water drop-shaped streamline bulges in each row and the upper ends of the water drop-shaped streamline bulges in the next row are on the same horizontal line;

a first dust suction groove is arranged below the first air suction opening and is right opposite to the cleaning rod in the drafting zone, so that the distance between the first air suction opening and the cleaning rod is reduced, and various impurities in the drafting zone can be sucked away in time; a second dust suction groove is arranged above the second air suction opening and is right opposite to the whole drafting zone;

the orthographic projection areas of the first dust suction groove and the second dust suction groove cover the whole drafting area;

according to the invention, the side wall of the first air suction pipeline is provided with a plurality of water drop-shaped streamline protrusions which are arranged according to a specific mode, and according to Bernoulli's theorem, the fluid is mainly laminar on the surface of a streamline object and has no or little turbulent flow, so that the object is ensured to be subjected to smaller resistance. The pressure is reduced when the speed is increased in the flow; the pressure increases as the speed decreases. In the present invention, the combination of the impurity laden air stream and the drop-like streamline protrusion forms a narrow passage through which the initial air stream must pass. The air is not self-compressing and must therefore accelerate to push through the throat, which is why the air velocity increases at the projection face. The increased air flow in the throat is faster than the surrounding air and the pressure will drop in the region where the air flow velocity is faster, which creates a chain reaction. As the new air flow approaches, more air must also be squeezed faster into the drop-like streamline protuberances and the narrow channels formed by the free air flow, which results in lower air pressure, and the air is constantly converging and accelerating, continuously carrying impurities away from the first suction duct. And the shape of the first air suction pipeline is big end up, so that even if the wind speed is insufficient, the sucked impurities only temporarily fall back to the upper end of the streamline-shaped protrusion and move upwards again along with the vortex, and cannot fall into the drafting zone, thereby avoiding the condition of air channel blockage. The second air suction cover is additionally arranged, the side wall of the second air suction cover is smooth, impurities are not blocked when falling, and the first air suction pipe is assisted to clean the drafting zone more thoroughly.

As a preferred technical scheme:

according to the cleaning device for the drafting zone of the textile strip lap combination machine, the first air suction cover is formed by sequentially connecting and enclosing four cover bodies; the cover body wall is curved, the upper edges of the four cover body walls are at the same height, and the lower edges of the four cover body walls are at the same height.

The drafting zone cleaning device of the textile ribbon lap combination machine comprises the following components in percentage by weight: from the air suction opening to the upper part, the size is reduced.

According to the cleaning device for the drafting zone of the textile strip lap combination machine, the length of the lower edge of the wall of the cover body is 20 cm-100 cm, and the height of the first air suction pipeline (namely the distance between the upper edge and the lower edge of the first air suction cover) is 20 cm-100 cm;

the shapes and the sizes of all the water drop-shaped streamline bulges distributed on the side wall of the first air suction pipeline are completely the same, the maximum length l of each water drop-shaped streamline bulge along the longitudinal direction of the first air suction pipeline is 20-40 mm, the maximum width w of each water drop-shaped streamline bulge along the transverse direction of the first air suction pipeline is 5-15 mm, the maximum height h of each water drop-shaped streamline bulge is 5-15 mm, and the maximum height of each water drop-shaped streamline bulge is located at the position 1/3 above the length direction of each water drop-shaped streamline bulge.

The minimum distance between two adjacent drop-shaped streamline bulges in each row is the maximum width w of each drop-shaped streamline bulge along the transverse direction of the first air suction pipeline.

According to the cleaning device for the drafting zone of the textile strip lap combination machine, the included angle alpha between the lower edge of the water-drop-shaped streamline protrusion and the side wall of the first air suction pipeline where the water-drop-shaped streamline protrusion is located is 15-30 degrees, the included angle beta between the upper edge of the water-drop-shaped streamline protrusion and the side wall of the first air suction pipeline where the water-drop-shaped streamline protrusion is located is 45-60 degrees, and alpha is less than beta, so that the purpose of keeping the same with the change trend of the curved surface of the cover.

According to the cleaning device for the drafting zone of the textile strip lap combination machine, the first air suction pipeline and the second air suction pipeline form an air suction main pipeline together.

According to the cleaning device for the drafting zone of the textile strip lap combination machine, the distance between the first dust suction groove and the cleaning rod is 2 cm-10 cm, and the distance between the second dust suction groove and the drafting zone is 2 cm-10 cm.

According to the cleaning device for the drafting zone of the textile strip lap combination machine, the first dust suction groove and the second dust suction groove are both in a cuboid shape, the cross section of the second air suction pipeline is rectangular, and the height of the second air suction pipeline is 20 cm-100 cm.

According to the cleaning device for the drafting zone of the textile strip lap combination machine, the size of the upper edge of each second air suction opening is 20 cm-100 cm, and the height of each second air suction pipeline is 20 cm-100 cm.

According to the cleaning device for the drafting zone of the textile strip lap combination machine, the drop-shaped streamline protrusion is made of Polydimethylsiloxane (PDMS), the drop-shaped streamline protrusion and the cover body wall of the first air suction pipeline are integrally formed, and the specific forming process comprises the following steps: firstly, manufacturing a mould with a water-drop-shaped streamline protrusion, then, uniformly mixing polydimethylsiloxane (PDMS, Sylgard184, Dow Corning company, and composed of a PDMS prepolymer and a curing agent) according to the proportion of w (prepolymer) to w (curing agent) of 15:1, putting the mixture into a vacuum box, extracting bubbles in the mixture, pouring the mixture into the mould with the water-drop-shaped streamline structure, then putting the mould into an oven at 80 ℃ for curing for 30min, and after the cured PDMS is cooled to room temperature, peeling the cured PDMS from the mould, thereby obtaining a first air suction pipeline cover body wall with the water-drop-shaped streamline protrusion; the second air suction cover is made of stainless steel.

The use process of the cleaning device for the drafting zone of the textile strip lap combination machine comprises the following steps: the drafting zone consists of three upper and three lower leather roller rollers, and the web is stretched by the speed difference between the three roller(s). The cotton web is fed between the rollers and the leather roller, and after passing through the three-stage rollers (group), the cotton web is stretched into the required cotton web according to the set drafting multiple, the leather roller which runs at high speed and the cotton web rub to generate static electricity to adsorb dust and impurities in the air, and defects such as short fiber, impurities and the like formed by the traction action of the drafting zone are all generated in the drafting zone. At this time, due to the action of the cleaning device of the drafting zone of the textile strip lap combination machine, various impurities can reach the first air suction opening through the first dust suction groove above the drafting zone and enter the first air suction pipeline, according to Bernoulli's theorem, the impurities move upwards along the surface of the drop-shaped streamline protrusion and the interval area of the drop-shaped streamline protrusion, the shape of the first air suction pipeline is large at the upper part and small at the lower part, the wall of the cover body is a curved surface, the shape is similar to a hyperbola, when the focus is on the x axis, the left axis and the right axis are positioned in the shape of a quadrant or a quadrant, the curvature radius of the left axis and the right axis is in the trend of being reduced from the upper part to the upper part, meanwhile, in order to keep consistent with the changing trend of the curved surface of the wall of the cover body, the included angle alpha between the lower edge of the drop-shaped streamline protrusion and the side wall of the first air, the maximum height position is 1/3 above the longitudinal direction of the drop-shaped streamline protrusions, namely at the geometric center of the drop-shaped streamline protrusions, the maximum distance between two adjacent drop-shaped streamline protrusions in each row is the width w of each drop-shaped streamline protrusion, and in view of the above setting and the arrangement mode of the drop-shaped streamline protrusions, even if the wind speed is insufficient, the sucked impurities fall down from the gap of the drop-shaped streamline protrusions and are blocked by the upper ends of the drop-shaped streamline protrusions in the next row, and the impurities cannot fall into the drafting zone and can be sucked away in time as the air flow moves upwards again. And part of impurities which are not cleaned by the first air suction opening can pass through the second dust suction groove to reach the second air suction opening and enter the second air suction pipeline, the side wall of the second air suction pipeline is smooth, and the impurities are not blocked in the second air suction pipeline and are cleaned rapidly. The novel drafting zone cleaning device of the textile strip lap combination machine has the advantages that the cleaning of the drafting zone is greatly improved, the purpose of improving the product quality is further achieved, and the working strength of a turner is reduced.

Has the advantages that:

the cleaning device for the drafting zone of the textile strip lap combination machine can suck various impurities in the drafting zone in time, greatly improve the cleaning of the drafting zone, further achieve the aim of improving the product quality and reduce the working strength of a turner.

Drawings

FIG. 1 is a schematic diagram of the whole structure of a cleaning device of a drafting zone of a textile ribbon lap combining machine;

FIG. 2 is a schematic view of a first air intake cover according to the present invention;

FIG. 3 is a schematic view of the overall structure of the side wall of the first draft tube of the present invention;

FIG. 4 is an enlarged view of a drop-shaped streamlined protrusion on the sidewall of the first air intake duct of the present invention;

FIG. 5 is a side view of a drop-shaped streamlined protrusion on a sidewall of a first air intake duct of the present invention;

the device comprises a drawing area 1, a first air suction cover 2, a first air suction opening 3, a first air suction pipeline 4, a drop-shaped streamline protrusion 5, a second air suction cover 6, a second air suction opening 7, a second air suction pipeline 8, a first dust suction groove 9, a cleaning rod 10, a second dust suction groove 11 and a cover body wall 12.

Detailed Description

The invention will be further illustrated with reference to specific embodiments. It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Further, it should be understood that various changes or modifications of the present invention may be made by those skilled in the art after reading the teaching of the present invention, and such equivalents may fall within the scope of the present invention as defined in the appended claims.

In the description of the present invention, it is to be understood that the terms "center", "inside", "outside", "upper", "lower", "left", "right", "horizontal", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it should be noted that the terms "mounted" and "connected" are to be construed broadly and may include, for example, a fixed connection, a detachable connection, or an integral connection unless expressly stated or limited otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

A cleaning device for a drafting zone of a textile strip lap combination machine is shown in figure 1 and comprises a first air suction cover 2 arranged above the drafting zone 1 and a second air suction cover 6 arranged below the drafting zone 1; the lower opening of the first air suction cover 2 is a first air suction opening 3, and the upper opening of the second air suction cover 6 is a second air suction opening 7;

as shown in fig. 2, the first air suction cover 2 is formed by sequentially connecting four cover walls 12, and the whole cover is a large-top and small-bottom cover-shaped structure, and the space inside the cover walls 12 is a first air suction pipeline 4; wherein the housing wall 12 is curved, the upper edges of the four housing walls 12 are at the same height, and the lower edges of the four housing walls 12 are at the same height; the radius of curvature of the shroud wall 12 decreases from large to small upward from the first suction port 3; the lower edge of the cover body wall is 20 cm-100 cm long, and the first air suction pipeline is 20 cm-100 cm high;

a plurality of water-drop-shaped streamline protrusions 5 made of polydimethylsiloxane are arranged on the side wall of the first air suction pipeline 4, and the water-drop-shaped streamline protrusions 5 and the cover body wall 12 of the first air suction pipeline 4 are integrally formed; the included angle alpha between the lower edge of the water drop-shaped streamline protrusion 5 and the side wall of the first air suction pipeline 4 is 15-30 degrees, and the included angle beta between the upper edge and the side wall of the first air suction pipeline 4 is 45-60 degrees; as shown in fig. 3, 4 and 5, all the shapes and sizes of the water-drop-shaped streamline protrusions 5 are completely the same, the maximum length l of each water-drop-shaped streamline protrusion 5 along the longitudinal direction of the first air suction duct is 20 mm-40 mm, the maximum width w along the transverse direction of the first air suction duct is 5 mm-15 mm, the maximum height h is 5 mm-15 mm, and the position of the maximum height is at the upper 1/3 of the length direction; the water drop-shaped streamline protrusions 5 are arranged on the side wall of the first air suction pipeline 4 in an array mode, a certain distance is reserved between every two adjacent water drop-shaped streamline protrusions 5 in each row, and the minimum distance between every two adjacent water drop-shaped streamline protrusions 5 in each row is the maximum width w of each water drop-shaped streamline protrusion 5 in the transverse direction of the first air suction pipeline; the water-drop streamline bulges 5 in two adjacent rows are staggered, and the lower end of the water-drop streamline bulge in each row is on the same horizontal line with the upper end of the water-drop streamline bulge in the next row;

the second air suction hood 6 is made of stainless steel, and the cross section of the second air suction pipeline 8 is rectangular; the sizes of four sides of the second air suction opening 7 are respectively 20 cm-100 cm, and the height of the second air suction pipeline 8 is 20 cm-100 cm;

a first dust suction groove 9 in a cuboid shape is arranged below the first air suction opening 3 and is opposite to the cleaning rod 10 of the drafting zone 1, and the distance between the first dust suction groove and the cleaning rod 10 is 2 cm-10 cm;

a second dust suction groove 11 in a cuboid shape right opposite to the drafting zone 1 is arranged above the second air suction opening 7, and the distance between the second dust suction groove and the drafting zone 2 is 2 cm-10 cm;

the orthographic projection areas of the first dust suction groove 9 and the second dust suction groove 11 both cover the whole drafting zone 1;

the first air suction pipeline 4 and the second air suction pipeline 8 together form an air suction main pipeline.

The cleaning device for the drafting zone of the textile strip lap combination machine can suck various impurities in the drafting zone in time, greatly improve the cleaning of the drafting zone, further achieve the aim of improving the product quality and reduce the working strength of a turner.