CN111270362B - Fiber web inner winding device and method - Google Patents

Abstract

The invention provides a fiber web inner rolling device and a method, which are characterized in that: the device comprises a collecting tank, wherein the collecting tank comprises a tank wall and a tank bottom arranged at one end of the collecting tank, a slotted hole is formed in the tank bottom, a guide block is arranged in the collecting tank and fixedly connected with the tank wall, and a fiber net output by a drawing frame drawing mechanism enters the collecting tank and is output through the slotted hole after being shunted and wound by the tank wall and the guide block. The invention can gather and fold the fiber layer output by the drafting system, so that the fiber layer can be effectively rolled and coated before being output, thereby leading different component fibers in the fiber strip to have better mixing effect.

Description

Fiber web inner winding device and method

Technical Field

The invention relates to a fiber web inner rolling device and a method.

Background

The drawing frame is widely applied to the production process of spinning at present, and the drawing frame is used for drawing fed fiber slivers in a combining way to prepare slivers with certain specifications. The fiber web buncher is a device which is positioned in the drawing frame behind a drafting mechanism and is used for gathering the drafted fiber webs and gathering the fiber webs into strips. In the process, the transverse uniformity of the fibers in the fiber web is greatly improved, and the effect is more obvious particularly when the cotton slivers of different raw materials are blended. The mixing functionality of this device is not well understood. The existing fiber web buncher only collects and gathers the drafted fiber web layers into strips, and the mixing effect of the fibers in the process is not obvious. Chinese patent CN 2019206422306 discloses a web buncher capable of wrapping a web, but has certain problems, such as insufficient wrapping effect, unobvious improvement of fiber mixing effect in a cotton sliver, and the like.

Disclosure of Invention

The purpose of the invention is: the process flow is shortened under the condition of achieving the same quality of the mixed fiber, and the fiber obtains better mixing effect on the same drawing equipment.

In order to achieve the purpose, the technical scheme of the invention is to provide a fiber web inner rolling device, which is characterized in that: the fiber net drawing device comprises a collecting tank, wherein the collecting tank comprises a tank wall and a tank bottom arranged at one end of the collecting tank, a slotted hole is formed in the tank bottom, a guide block is arranged in the collecting tank and fixedly connected with the tank wall, and a fiber net output by a drawing frame drawing mechanism enters the collecting tank and is output through the slotted hole after being shunted and wound by the tank wall and the guide block.

Preferably, the guide block comprises a top surface, a bottom surface, a side surface and two symmetrical working surfaces, the bottom surface is connected with the bottom of the groove, the side surface is fixedly attached to the groove wall, and the two working surfaces guide the fiber nets entering the collecting groove into the groove holes along the direction of the collecting groove.

Preferably, the groove wall is provided with an opening, the guide block is provided with an inner hole thread, and the groove wall and the guide block are fixedly connected through the opening and the inner hole thread by a bolt.

Preferably, the collecting trough is provided with a bracket for fixing the collecting trough to a drawing frame drafting mechanism.

Preferably, the slotted hole is connected with a fiber net horn mouth, and the aperture of one end of the fiber net horn mouth connected with the slotted hole is larger than that of the other end.

Preferably, the fiber net bell mouth is fixed at the bottom of the groove through a screw and a built-in threaded hole.

Preferably, the groove wall is a curved surface.

Preferably, the groove wall is provided with a fault zone.

Preferably, the width range of the opening of the collecting groove is 50-200mm, the thickness AB of the upper end of the guide block is 1-30mm, the thickness CD of the lower end of the guide block is 1-30mm, the width EF of the upper end of the guide block is 30-100mm, and the width GH of the lower end of the guide block is 1-40 mm.

The invention also provides a method for rolling up the fiber web, which is characterized by comprising the following steps:

step one, determining the width and the shape of an opening of a collecting tank;

determining the shape of the working surface of the guide block, and the upper and lower thickness values and the width value;

selecting a proper fiber web horn mouth and a proper slotted hole;

step four, selecting a drawing frame production process, fixing a collecting tank at the front end of a drawing mechanism of the drawing frame, operating equipment, dividing the fiber web output by the drawing mechanism into three parts by the collecting tank, and directly moving the middle fiber web of the middle part to a slotted hole through the bottom of the tank to enter a fiber web bell mouth; the end fiber nets of the left and right side parts change the running direction after touching the groove wall and the guide block and are respectively wound inwards under the action of inertia and simultaneously approach to the middle fiber net, the end fiber nets are formed at the horn mouth of the fiber net and are respectively wound and then coated by the middle fiber net, and fibers in the fiber strip distributed in a plurality of circles are output through the horn mouth of the fiber net.

Compared with the prior art, the invention has the beneficial effects that:

(1) the invention can gather and fold the fiber layer output by the drafting system, so that the fiber layer can be effectively rolled and coated before being output, thereby leading different component fibers in the fiber strip to have better mixing effect.

(2) The width of the collecting groove and the width of the guide block can be properly selected according to the weight of the output fiber strips and the distribution width of the fiber net, so that a better mixing effect can be obtained no matter the output fiber strips are quantitatively large or small, and stable and reliable spinning quality is obtained.

(3) The device and the method have excellent mixing effect, and can reduce the mixing times under the condition of reaching the same quality, thereby reducing the equipment investment, shortening the spinning process flow, improving the production efficiency, reducing the labor and reducing the energy consumption, and particularly showing more prominently in the production of the sliver mixing process and the color spinning process.

(4) When the fiber web horn mouth is blocked, the buncher is more easily deflected, the alarm device is triggered to stop in time, and related parts are protected from being damaged.

Drawings

FIG. 1 is a schematic view of a web inner wrap device;

FIG. 2 is a schematic view of a groove wall in the shape of a side surface of a circular truncated cone;

FIG. 3 is a schematic view of a parabolic groove wall;

FIG. 4 is a schematic view of the collection trough with the bottom of the trough curved;

FIG. 5 is a schematic view of a guide block;

FIG. 6 is a schematic side view of a web inner wrap device;

FIG. 7 is a schematic view of the operation of the web inner wrap device;

FIG. 8 is a schematic view of a collecting groove structure in which both the upper end and the lower end of the fault zone are truncated cone sides;

FIG. 9 is a schematic view of an alternative collection tank configuration;

FIG. 10 is a schematic view of an alternative collection tank configuration;

FIG. 11 is a schematic view of another collection tank configuration.

Reference numerals: 1. the device comprises a collecting groove, 2, a guide block, 3, a slotted hole, 4, a fiber web bell mouth, 5, a support, 6, an inner hole thread, 7, an opening, 8, a bolt, 9, a screw rod, 10, an inner threaded hole, 11-1, a middle fiber web, 11-2, an end fiber web, 12, a groove wall, 13, a groove bottom, 14 and a fault zone.

Detailed Description

In order to make the invention more comprehensible, preferred embodiments are described in detail below with reference to the accompanying drawings.

As shown in figure 1, the fiber web inward rolling device mainly comprises a collecting tank 1, a guide block 2, a slotted hole 3, a fiber web bell mouth 4, a bracket 5 and the like. The collecting vessel 1 is formed by welding a vessel wall 12 and a vessel bottom 13, the vessel wall 12 having two identical openings 7 and the vessel bottom 13 having a vessel opening 3, as shown in fig. 2. The collecting tank 1 can be designed into various shapes, such as a truncated cone-shaped collecting tank, a waist drum-shaped collecting tank, an ellipsoid-shaped collecting tank and the like, the opening width and the shape of the tank wall 12 are set to be crucial, the proportion of the end fiber webs 11-2 at the left side and the right side in the whole fiber webs is influenced, the moving direction of the end fiber webs is changed, and the like, and the setting range of the opening width is 50-200mm, preferably 70-160mm, and particularly preferably 90-120 mm; the groove wall 12 has a smooth surface and can be provided as a truncated cone side surface, as shown in fig. 2, or as a paraboloid, as shown in fig. 3, and in addition, the groove wall 12 can also be provided with a fault zone 14, and the upper end and the lower end of the fault zone 14 are both in the shape of a truncated cone side surface, as shown in fig. 8; the device can also be provided with a fault belt 14, the upper end of the fault belt 14 is in a paraboloid shape, and the lower end of the fault belt is in a round table side shape, as shown in fig. 9; the width of the fault band 14 is 1-15mm, preferably 3-8 mm. In practice, however, many other types of designs are conceivable, for example, the fault belt 14 is not necessarily horizontally disposed, and may be designed to have a shape gradually inclined from both ends to the middle, as shown in fig. 10; for example, the fault band 14 can be designed to be wide at both ends and narrow in the middle, as shown in fig. 11; for example, the upper and lower groove wall portions of the fault-layer belt 14 may be formed by matching other shapes, and the like. The groove bottom 13 may be arranged as a plane, as shown in fig. 3; or may be curved as shown in fig. 4; the middle part of the groove bottom 13 is provided with a groove hole 3, the inner diameter of the groove hole 3 is 5-65mm, and the groove wall 12 is smoothly connected with the groove bottom 13. The guide block 2 comprises a top surface, a bottom surface, a side surface and two symmetrical working surfaces, and the guide block 2 is provided with two inner hole threads 6, as shown in fig. 5. The bottom surface is connected with the groove bottom 13, the side surface is tightly attached to the groove wall 12, and the hexagonal bolt 8 is fixed with the inner hole thread 6 through the opening 7; the fiber net horn mouth 4 is arranged at the groove hole 3, the inner diameter of the fiber net horn mouth 4 is large at the upper part and small at the lower part, the screw 9 fixes the upper end of the fiber net horn mouth 4 on the groove bottom 13 through the built-in threaded hole 10, the inner diameter of the lower end of the fiber net horn mouth 4 is 3-16mm, and the upper end of the fiber net horn mouth 4 is tightly connected with the groove bottom 13 as shown in fig. 6. The upper end thickness AB of the guide block 2 is 1-30mm, the lower end thickness CD is 1-30mm, the upper end width EF is 30-100mm, and the lower end width GH is 1-40 mm; the above thickness and width values are important to set, and the set values are related to the selected opening width of the collecting tank, so that the shape of the guide block 2 is determined, the moving path of part of the fiber web is changed, the product quality is influenced, and the positive operation of the equipment is influenced, for example, the thickness AB value is set to be too large, and the abrasion phenomenon can occur due to the fact that the thickness AB value touches a leather roller of a drafting mechanism; if the arrangement is too small, the alarm device cannot be triggered to stop in time when the fiber web buncher is blocked, and parts are damaged. The two working surfaces ACGE and ACHF in the guide block 2 are symmetrical to each other, and can be arranged as a plane or a curved surface. And the brackets 5 are arranged at two sides of the collecting tank 1 and are used for connecting the fiber web inner rolling device with a drafting mechanism.

The invention relates to a fiber web internal coiling method, which comprises the following specific steps according to fiber raw materials and drawing process requirements:

step one, selecting the opening width and shape of the collecting tank.

And step two, selecting a proper guide block, wherein the proper guide block comprises parameters such as the shape of a working surface, the upper and lower thickness values, the width value and the like.

And step three, selecting a proper fiber web horn mouth and a proper slotted hole.

And step four, selecting a reasonable drawing frame production process, wherein the process comprises the process parameters of the quantitative feeding of fibers, the number of combined fibers, the drafting multiple, the width of the drafted fiber web, the output speed and the like.

After the parameters are set, the collecting tank 1 is fixed at the front end of a drawing mechanism of a drawing frame through a support 5, fiber nets output by running equipment from a drawing system are divided into three parts by the collecting tank 1, and a middle fiber net 11-1 of the middle part directly moves to a groove hole 3 through a tank bottom 13 and enters a fiber net horn mouth 4; the end part fiber nets 11-2 of the left and right side parts change the running direction after contacting the groove wall 12 and the guide block 2 and are respectively wound inwards under the action of inertia thereof and simultaneously get close to the middle fiber net 11-1, and the end part fiber nets are respectively wound and simultaneously coated by the middle fiber net after being formed at the bell mouth, as shown in fig. 7. The fiber webs in the fiber strips output by the fiber web bellmouth 4 are distributed in a multi-circle layer mode, and the mixing effect of the fibers in the fiber strips is greatly improved.

Fiber strips were produced under the same conditions without using drawing equipment of the web inner wrap device, and the mixing effect of the fibers in the fiber strips was compared as follows: firstly, observing the appearance of the fiber strips under a standard light source; secondly, the slivers are woven after being spun into yarns, whether the cloth surface has the crosspiece defects or not is respectively detected on a cloth inspecting machine, and the qualified yarn is the first grade and the unqualified yarn is the second grade according to the judgment of the crosspiece defects in the yarn-dyed fabric detection and judgment standard.

The following description takes specific numbers of tampons as examples:

black with 8 carded slivers: for example, the weight of each sliver is 4.5Ktex, the draft multiple is 8, the output sliver weight is 4.5Ktex, the sliver output speed is 550m/min, and the width of the web after drafting is 100 mm. According to the production process requirements, the selected ellipsoidal collecting tank 1 is provided with a parabolic tank wall 12 and a curved tank bottom 13, the opening width of the collecting tank is 110mm, the inner diameter of the slotted hole 3 is 15mm, and a fiber web bell mouth 4 with the inner diameter of 8mm at the lower end is arranged. The working surface of the guide block 2 is selected to be a curved surface, the thickness AB of the upper end of the guide block is 10mm, the thickness CD of the lower end of the guide block is 2mm, the width EF of the upper end of the guide block is 80mm, and the width GH of the lower end of the guide block is 2 mm. Normally driving to produce cotton slivers, and simultaneously producing the cotton slivers by the same equipment under the same conditions without using the fiber web inner rolling device. Comparing the sliver produced by the fiber web inner winding device through one drawing process with the sliver produced by the fiber web buncher through two drawing processes according to the set method, wherein the result shows that the appearances of the slivers produced by the two methods are the same, the slivers are respectively spun into yarns and then woven into cloth, and the defects of crosspieces of the cotton slivers are detected to be of the first grade; therefore, under the condition of meeting the same mixed quality, the drawing process after the fiber web internal coiling device is used is reduced from two originally needed processes into one process, and the spinning process is greatly shortened.

Black with 8 carded slivers: for example, the weight of each sliver is 4.5Ktex, the draft multiple is 8, the output sliver weight is 4.5Ktex, the sliver output speed is 550m/min, and the width of the web after drafting is 100 mm. According to the production process requirements, the selected circular truncated cone-shaped collecting tank 1 is provided with a circular truncated cone side type tank wall 12 and a plane tank bottom 13, the opening width of the circular truncated cone side type tank wall is 110mm, the inner diameter of a slotted hole 3 is 15mm, and a fiber net horn mouth 4 with the lower end inner diameter of 8mm is configured. The working surface of the guide block 2 is selected to be a plane, the thickness AB of the upper end of the guide block is 10mm, the thickness CD of the lower end of the guide block is 2mm, the width EF of the upper end of the guide block is 80mm, and the width GH of the lower end of the guide block is 2 mm. Normally driving to produce cotton slivers, and simultaneously producing the cotton slivers by the same equipment under the same conditions without using the fiber web inner rolling device. Comparing the sliver produced by the fiber web inner winding device through two drawing procedures with the sliver produced by the fiber web buncher through three drawing procedures according to the set method, wherein the result shows that the appearances of the slivers produced by the two methods are the same, the slivers are respectively spun into yarns and then woven into cloth, and the defects of crosspieces of the cotton slivers are detected to be of the first grade; therefore, under the condition of meeting the same mixing quality, the drawing process after the fiber web internal coiling device is used is reduced from three originally needed processes to two processes, and the spinning process is effectively shortened.

Taking the blending production of 4 black combed cotton slivers and 4 viscose slivers as an example, the weight of each cotton sliver is 4.0Ktex, the drafting multiple is 8, the ration of the output cotton sliver is 4.0Ktex, the output speed of the cotton sliver is 450m/min, and the width of the drafted cotton net is 90 mm. According to the production process requirements, the selected ellipsoidal collecting tank 1 is provided with a parabolic tank wall 12 and a curved tank bottom 13, the opening width of the collecting tank is 100mm, the inner diameter of the slotted hole 3 is 18mm, and a fiber web bell mouth 4 with the inner diameter of 8mm at the lower end is configured. The working surface of the guide block 2 is selected to be a curved surface, the thickness AB of the upper end of the guide block is 9mm, the thickness CD of the lower end of the guide block is 2.5mm, the width EF of the upper end of the guide block is 75mm, and the width GH of the lower end of the guide block is 2.2 mm. Normally driving to produce cotton slivers, and simultaneously producing the cotton slivers by the same equipment under the same conditions without using the fiber web inner rolling device. Comparing the sliver produced by the fiber web inner winding device through one drawing process with the sliver produced by the fiber web buncher through two drawing processes according to the set method, wherein the result shows that the appearances of the slivers produced by the two methods are the same, the slivers are respectively spun into yarns and then woven into cloth, and the defects of crosspieces of the cotton slivers are detected to be of the first grade; therefore, under the condition of meeting the same mixed quality, the drawing process after the fiber web internal coiling device is used is reduced from two originally needed processes into one process, and the spinning process is greatly shortened.

Taking the blending production of 2 black combed cotton slivers and 6 viscose slivers as an example, the weight of each cotton sliver is 4.0Ktex, the drafting multiple is 8, the ration of the output cotton sliver is 4.0Ktex, the output speed of the cotton sliver is 450m/min, and the width of the drafted cotton net is 90 mm. According to the production process requirements, the selected waist drum-shaped collecting tank 1 is provided with a parabolic tank wall 12 and a plane tank bottom 13, the opening width of the tank is 100mm, the inner diameter of the slotted hole 3 is 18mm, and a fiber web bell mouth 4 with the inner diameter of 8mm at the lower end is arranged. The working surface of the guide block 2 is selected to be a plane, the thickness AB of the upper end of the guide block is 9mm, the thickness CD of the lower end of the guide block is 1.8mm, the width EF of the upper end of the guide block is 75mm, and the width GH of the lower end of the guide block is 1.6 mm. Normally driving to produce cotton slivers, and simultaneously producing the cotton slivers by the same equipment under the same conditions without using the fiber web inner rolling device. Comparing the sliver produced by the fiber web inner winding device through two drawing procedures with the sliver produced by the fiber web buncher through three drawing procedures according to the set method, wherein the result shows that the appearances of the slivers produced by the two methods are the same, the slivers are respectively spun into yarns and then woven into cloth, and the defects of crosspieces of the cotton slivers are detected to be of the first grade; therefore, under the condition of meeting the same mixing quality, the drawing process after the fiber web internal coiling device is used is reduced from three originally needed processes to two processes, and the spinning process is effectively shortened.

Claims (5)

1. A web inner wrap device characterized by: the collecting tank comprises a collecting tank (1), wherein the collecting tank (1) comprises a tank wall (12) and a tank bottom (13) arranged at one end of the collecting tank (1), the tank wall (12) is a curved surface, and a fault zone (14) is arranged on the tank wall (12);

a slotted hole (3) is formed in the groove bottom (13), the slotted hole (3) is connected with a fiber web bell mouth (4), and the aperture of one end, connected with the slotted hole (3), of the fiber web bell mouth (4) is larger than that of the other end of the fiber web bell mouth;

a guide block (2) is arranged in the collecting tank (1), the guide block (2) is arranged in the middle of the surface of the tank wall (12), the guide block (2) is fixedly connected with the tank wall (12), and a fiber web output by a drawing mechanism of a drawing frame enters the collecting tank (1), is shunted and wound by the tank wall (12) and the guide block (2), and then is output through a slotted hole (3) and a fiber web bell mouth (4);

the guide block (2) comprises a top surface, a bottom surface, a side surface and two symmetrical working surfaces, the bottom surface is connected with the bottom of the groove (13), the side surface is fixedly attached to the groove wall (12), the two working surfaces are curved surfaces, and the fiber nets entering the two side end parts of the collecting groove (1) are guided into the groove holes (3) along the direction of the collecting groove (1);

the width range of the opening of the collecting tank (1) is 50-200mm, the thickness AB of the upper end of the guide block (2) is 1-30mm, the thickness CD of the lower end of the guide block is 1-30mm, the width EF of the upper end of the guide block is 30-100mm, and the width GH of the lower end of the guide block is 1-40 mm.

2. A web inner wrap device as defined in claim 1, wherein: be equipped with trompil (7) on cell wall (12), be equipped with hole screw thread (6) on guide block (2), bolt (8) are fixed cell wall (12) and guide block (2) connection through trompil (7) and hole screw thread (6).

3. A web inner wrap device as defined in claim 1, wherein: the collecting groove (1) is provided with a bracket (5) used for fixing the collecting groove (1) on a drawing frame drafting mechanism.

4. A web inner wrap device as defined in claim 1, wherein: the fiber net bell mouth (4) is fixed at the bottom of the groove (13) through a screw rod (9) and a built-in threaded hole (10).

5. A method of reeling a web, characterized in that a web reeling device according to any one of claims 1 to 4 is used, comprising the steps of:

step one, determining the width and the shape of an opening of a collecting tank;

determining the shape of the working surface of the guide block, and the upper and lower thickness values and the width value;

selecting a proper fiber web horn mouth and a proper slotted hole;

step four, selecting a drawing frame production process, fixing a collecting tank at the front end of a drawing mechanism of the drawing frame, operating equipment, dividing the fiber web output by the drawing mechanism into three parts by the collecting tank, and directly moving the middle fiber web of the middle part to a slotted hole through the bottom of the tank to enter a fiber web bell mouth; the end fiber nets of the left and right side parts change the running direction after touching the groove wall and the guide block and are respectively wound inwards under the action of inertia and simultaneously approach to the middle fiber net, the end fiber nets are formed at the horn mouth of the fiber net and are respectively wound and then coated by the middle fiber net, and fibers in the fiber strip distributed in a plurality of circles are output through the horn mouth of the fiber net.

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