CN111621861A - Semi-continuous spinning machine and spinning cake production process thereof - Google Patents
Semi-continuous spinning machine and spinning cake production process thereof Download PDFInfo
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- CN111621861A CN111621861A CN201910144275.5A CN201910144275A CN111621861A CN 111621861 A CN111621861 A CN 111621861A CN 201910144275 A CN201910144275 A CN 201910144275A CN 111621861 A CN111621861 A CN 111621861A
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- 238000009987 spinning Methods 0.000 title claims abstract description 176
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 15
- 238000004804 winding Methods 0.000 claims description 26
- 239000003292 glue Substances 0.000 claims description 23
- 230000008859 change Effects 0.000 claims description 10
- 238000010009 beating Methods 0.000 claims description 7
- 238000000034 method Methods 0.000 description 12
- 230000008569 process Effects 0.000 description 11
- 230000000694 effects Effects 0.000 description 8
- 238000007670 refining Methods 0.000 description 6
- 238000004043 dyeing Methods 0.000 description 4
- 230000007246 mechanism Effects 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 3
- 229920000297 Rayon Polymers 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- 239000002243 precursor Substances 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000005119 centrifugation Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D7/00—Collecting the newly-spun products
- D01D7/02—Collecting the newly-spun products in centrifugal spinning pots
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D13/00—Complete machines for producing artificial threads
- D01D13/02—Elements of machines in combination
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H53/00—Cams ; Non-rotary cams; or cam-followers, e.g. rollers for gearing mechanisms
- F16H53/02—Single-track cams for single-revolution cycles; Camshafts with such cams
- F16H53/025—Single-track cams for single-revolution cycles; Camshafts with such cams characterised by their construction, e.g. assembling or manufacturing features
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- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
Abstract
The invention discloses a semi-continuous spinning machine and a spinning cake production process thereof, wherein the semi-continuous spinning machine comprises a centrifugal tank, a lifting rod, a funnel support arranged on the lifting rod and a cam for driving the lifting rod to move up and down, the ratio of the stroke of the cam to the height of a cavity in the centrifugal tank is (130-170): (165-200).
Description
Technical Field
The invention relates to the field of semi-continuous spunbonded filaments, in particular to a semi-continuous spinning machine and a spinning cake production process thereof.
Background
Most of factories adopt the semicontinuous spinning machine to carry out the production of viscose filament yarn cake now, and the cake weight of the spinning cake of production is 0.4 ~ 0.6 kg/one generally, and the silk process of nevertheless falling is gone to operate by the people, and the silk thread need be pinched off at the silk winding in-process, can produce useless silk, and the silk cake has increased the silk number of times that falls too little, has increased useless silk volume.
Meanwhile, the spinning cakes need to be wound into spinning drums with larger bobbins through a winder, which are also 2 kg of spinning cakes, and if 4 spinning cakes are wound into one spinning drum by one spinning drum instead of 3 spinning cakes, operators reduce the number of the spinning cakes and joints during the spinning drum forming process of the spinning cakes, so that the working efficiency is improved. After the spinning cakes are large, conditions are created for improving the spinning speed, for example, the conventional 72(m/min) of 300D silk, the silk falling time of 4 hours per spinning cake is changed to 90(m/min), and the silk falling time of 3 hours per spinning cake, so that when silk falls too frequently, workers cannot operate, the improvement of the spinning speed is limited, and after the large spinning cakes are developed and produced, the silk falling time of 90(m/min) and 4 hours per spinning cake are also realized, and the working efficiency is improved.
Also there is the mill to begin to study and make big the purpose that reaches improvement work efficiency with the spinning cake, but, simple increase centrifugation jar external diameter, extension pure spinning time increase spinning cake weight, can lead to spinning cake thickness to increase too big, not only the interior outer lane physical properties of precursor descends, still can lead to follow-up refining effect and stoving effect to worsen, influences fibrous intensity, elongation, fibre number and dyeing property.
The present invention has been made in view of this situation.
Disclosure of Invention
The technical problem to be solved by the invention is to overcome the defects of the prior art and provide a semi-continuous spinning machine, which increases the lifting stroke of the original cam, carries out partial structural transformation on the whole machine, improves the height of the manufactured spinning cake, enlarges the adjustment range of the winding angle of the spinning cake, ensures stable lifting motion at high spinning speed, can produce large spinning cakes and saves a large amount of labor force.
In order to solve the technical problems, the invention adopts the technical scheme that the basic concept is as follows:
a semi-continuous spinning machine comprises a centrifugal tank, a lifting rod, a funnel support arranged on the lifting rod and a cam driving the lifting rod to move up and down, wherein the centrifugal tank is provided with a cavity, and the ratio of the stroke of the cam to the height of the cavity in the centrifugal tank is (130-170): (165-200).
In the scheme, the lifting stroke of the original cam is increased, the whole machine is partially structurally modified, the height of the manufactured spinning cake is increased, the adjustment range of the winding angle of the spinning cake is expanded, the stable lifting motion is ensured at high spinning speed, the large spinning cake can be produced, and a large amount of labor is saved.
Preferably, in the invention, the stroke of the cam is 130-170 mm. More preferably, the stroke of the cam is 145-155 mm.
Preferably, the height of the inner chamber of the centrifugal tank is 165 mm-200 mm, and the height of the spinning cake wound in the chamber is 130 mm-170 mm.
Preferably, the height of the inner chamber of the centrifugal tank is 175-195 mm, and the height of the spinning cake wound in the chamber is 145-165 mm.
Preferably, the cam is of a symmetrical structure, one end of the cam is a convex end, the other end of the cam is an concave end, the concave end is a lowest stroke end, and the convex end is a maximum stroke end, wherein the distance between the convex end and the concave end is X, the maximum width of the cam along the direction perpendicular to the symmetry line on the cam is Y, and X: Y is (233 mm-300 mm): 245-320 mm.
According to the scheme, the size proportion of the cam in the transverse direction and the longitudinal direction is provided, the size is the optimal size proportion summarized on the basis of a large number of experiments, and the shape of the cam in the size proportion adjusts the spinning cake forming and guarantees the unwinding effect in the winding process.
Preferably, the distance X between the male end and the female end is 286.9mm, and the maximum width Y of the cam in a direction perpendicular to the symmetry line of the cam is 301 mm.
Preferably, the distance between the maximum width line of the cam and the convex end in the direction perpendicular to the symmetry line of the cam is T, and the ratio of the distance between the maximum width line of the cam and the concave end is S, T: S is (144 mm-200 mm) to (89 mm-125 mm).
In the scheme, the cam curve is optimized through the limitation of the size proportion. Ensures that the winding angle can still reach 7.4 degrees even at the spinning speed of 110 m/min, and the lifting operation is stable.
Preferably, the centrifugal tank is internally provided with a cylindrical chamber, the inner diameter of the chamber is 204 mm-206 mm, and the thickness of the spinning cake wound in the chamber is 26-40 mm, preferably 35 mm.
In the above scheme, if spinning cake thickness constantly increases, can lead to the spinning cake inside and outside layer strand silk to retract unevenly, and the difference of the skin is further aggravated including denier, intensity, elongation, and spinning cake thickness increase can influence follow-up refining, the stoving process is uneven simultaneously, influences the inherent and external quality of strand silk. Therefore, the outer diameter and the height of the spinning cake are increased, the weight of the spinning cake is increased, the thickness of the spinning cake is controlled within a certain range, and the quality of the spinning cake is ensured.
Preferably, the winding angle of the spinning cake on the semi-continuous spinning machine is 7-7.8 degrees. More preferably, the winding angle is 7.4 degrees.
In the scheme, the larger the spinning cake winding angle is, the higher the lifting speed is, the higher the spinning speed is, and the production efficiency is improved.
Preferably, the semicontinuous spinning machine further comprises a glue supply device and a fineness compensation device, wherein the fineness compensation device is in driving connection with the glue supply device and is used for controlling the glue beating amount of the glue supply device in a gradual change mode, so that the difference of the fineness values of filaments on the inner surface and the outer surface of the spinning cake is lower than 2% of the fineness value of the filaments on the inner surface.
Preferably, the glue supply device comprises a metering pump, the titer compensation device comprises a controller, a motor and a pump shaft, the motor is connected with the metering pump through the pump shaft, the glue beating amount of the metering pump changes along with the change of the rotating speed of the pump shaft, the controller is electrically connected with the motor, and the controller is used for controlling the rotating speed of the motor to adjust the titer of the spinning cake in the spinning process.
The invention also aims to provide a spinning cake production process of the semi-continuous spinning machine, wherein a spinning cake winding angle is set to be 7.0-8.0 ℃, a spinning speed is 80-115 m/min, and in the process of winding the spinning cake, gradual speed reduction of a motor is controlled to prepare the spinning cake with the height of 130-170 mm, the thickness of 26-36 mm and the fineness difference of filaments on the inner surface and the outer surface lower than 2% of the fineness of the filaments on the inner surface.
In order to solve the technical problems, the invention adopts the technical scheme that the basic concept is as follows:
the semi-continuous spinning machine comprises a centrifugal tank, a lifting rod, a funnel support arranged on the lifting rod and a cam for driving the lifting rod to move up and down, wherein the ratio of the stroke of the cam to the height of a cavity in the centrifugal tank is (130-170): (165-200).
The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limiting the invention to its proper form. It is obvious that the drawings in the following description are only some embodiments, and that for a person skilled in the art, other drawings can be derived from them without inventive effort. In the drawings:
FIG. 1 is a schematic of the structure of a cake of the present invention;
FIG. 2 is a schematic view of the denier adjustment device of the present invention;
FIG. 3 is a schematic view of the cam configuration of the present invention;
fig. 4 is another labeled diagram of the cam structure of the present invention.
In the figure: 1. a motor; 2. a pump shaft gear; 3. a pump shaft; 4. a motor gear; 5. a controller; 7. a protruding end; 8. a concave end; 9. the maximum width line.
It should be noted that the drawings and the description are not intended to limit the scope of the inventive concept in any way, but to illustrate it by a person skilled in the art with reference to specific embodiments.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and the following embodiments are used for illustrating the present invention and are not intended to limit the scope of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inside", "outside", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element 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.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted" and "connected" are to be interpreted broadly, e.g., as being either fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example one
Referring to fig. 1, the semi-continuous spinning machine of this embodiment is required to produce a large cake, the dry weight of the cake is 0.9kg to 1.5kg, the cake is a hollow cylindrical structure, and the ratio of the outer diameter of the cake to the thickness of the cake is (5 to 9): 1.
in the scheme, the ratio of the outer diameter of the spinning cake to the thickness of the spinning cake is (5-9): 1 to guarantee the refining effect and the stoving effect of the follow-up processing of spinning cake in the increase spinning cake weight, can not make the interior outer layer physical property of precursor descend like current simple increase spinning cake thickness, still can lead to follow-up refining effect and the effect variation of drying by fire the silk, influence fibrous intensity, elongation, fibre number and dyeing property.
Preferably, the ratio of the outer diameter of the spinning cake to the height of the spinning cake is (1.0-1.8): 1. more preferably, the cake height is from 130mm to 170mm, and most preferably, the cake height is from 145mm to 165 mm.
In the above scheme, by setting the proportion of the outer diameter to the height of the spinning cake and the actually selected size, the stable structure of the spinning cake is ensured while the weight of the spinning cake is increased.
Preferably, the thickness of the cake is less than 35 mm.
In above-mentioned scheme, when producing big spinning cake more than 900g, because spinning cake thickness constantly increases, can lead to the spinning cake inside and outside layer strand silk receive to contract the inequality and lead to titer, intensity, elongation, and the difference of inside and outside layer is further aggravated, and spinning cake thickness increase can influence follow-up refining, the stoving process is uneven simultaneously, influences the intrinsic and external quality of strand silk. Therefore, the thickness of the spinning cake is controlled within 35mm while the weight of the spinning cake is increased by increasing the outer diameter and the height of the spinning cake. The designer proves in a large number of tests that the later processing quality of the spinning cake is guaranteed by controlling the thickness of the spinning cake to be below 35 mm.
Preferably, the winding angle of the spinning cake is 7.0 to 7.8 °.
In the scheme, the winding angle is increased, so that the spinning cake forming is ensured, the spinning cake forming structure is stable, and the spinning cake quality is improved.
It should be noted that the structural design of the cake size, the winding and the like, although slightly changed from the prior art, has great significance for improving the cake quality, and is the labor result summarized in mass production practice.
Preferably, the difference in denier of the cake is less than 2%, and in particular, the difference in denier of the threadlines on the inner and outer faces of the cake is less than 2% of the denier of the threadlines on the inner face.
The weight of the spinning cakes produced by the semi-continuous spinning machine before a factory is generally 0.4-0.6 kg/piece, because the silk falling process is operated by people, the silk strips need to be cut off in the silk winding process, waste silk can be generated, the silk cake is too small, the silk falling frequency is increased, and the waste silk quantity is increased.
Example two
The second embodiment provides a semi-continuous spinning machine for producing spinning cakes in the first embodiment, which comprises a winding device, wherein the winding device comprises a centrifugal tank, the centrifugal tank is provided with a cylindrical chamber, and the ratio of the inner diameter to the height of the chamber is (0.7-1.2): 1. preferably, the ratio of the height of the chamber to the height of the cake is (1.0-1.5): 1. further preferably, the height of the chamber is more than 3-5 cm higher than that of the spinning cake.
In the above scheme, in order to produce the large spinning cake, the invention adaptively designs the structural size of the centrifugal tank so as to realize the production of the spinning cake.
Preferably, the inner diameter of the cylindrical cavity is 165-325 mm, and the height of the cylindrical cavity is 165-200 mm; preferably, the inner diameter of the cylindrical cavity is 204-206 mm, and the height of the cylindrical cavity is 190-199 mm; most preferably, the cylindrical chamber has an inner diameter of 205mm and a height of 194 mm; the most preferred structural dimensions are those which the inventors have summarized in a number of experiments.
In the scheme, the centrifugal tank is designed in size and is suitable for producing high-quality spinning cakes with large mass and stable structure.
The centrifugal pot is externally sleeved with an outer sheath, the top of the outer sheath is also buckled with a cover body, and the inner diameter of the cover body is larger than that of the cavity and ranges from 1mm to 2 mm.
Preferably, the semi-continuous spinning machine further comprises a lifting device for lifting the funnel, the lifting device comprises a lifting rod, a funnel support and a cam mechanism, the funnel support is mounted on the lifting rod, the bottom end of the lifting rod is matched with the cam mechanism, the cam mechanism drives the lifting rod to drive the funnel support to move up and down, and the lifting stroke of the cam mechanism is 145-155 mm.
In the scheme, the difference between the highest point and the lowest point of the cam can be increased by increasing the lifting stroke, the large spinning cake can be produced by increasing the lifting stroke, and the stroke is matched with the size of the large spinning cake and is suitable for producing the large spinning cake with stable structure. This design is also a labor outcome that has been summarized in a number of production practices.
Preferably, the semicontinuous spinning machine further comprises a glue supply device and a fineness compensation device, wherein the fineness compensation device is in driving connection with the glue supply device and is used for controlling the glue beating amount of the glue supply device in a gradual change mode, so that the difference of the fineness values of filaments on the inner surface and the outer surface of the spinning cake is lower than 2% of the fineness value of the filaments on the inner surface.
In above-mentioned scheme, the spinning cake becomes the thickness back, because the inherent characteristics of semicontinuous spinning cake, the outer strand silk of spinning cake is more than the inlayer strand silk and is dwindled back to, thereby lead to strand silk inlayer titer to be higher than outer denier, the inlayer dyeing difference when leading to follow-up dyeing and finishing, 1500 g's spinning cake thickness increases about 3-8mm than 900g spinning cake thickness, make this characteristic aggravation, spinning cake inlayer titer is higher than outer denier to about 5%, for this reason we utilize homogeneity viscose filament yarn technology to carry out the adjustment of inlayer titer to big spinning cake, along with pure spinning time, the pump shaft that carries on of gradual change formula is adjusted, the titer difference control of whole spinning cake is within 2%.
Preferably, referring to fig. 2, the glue supply device includes a metering pump, the fineness compensation device includes a controller 5, a motor 1 and a pump shaft 3, the motor is connected to the metering pump through the pump shaft, the glue beating amount of the metering pump changes with the change of the rotation speed of the pump shaft, the controller is electrically connected to the motor, and the controller is used for controlling the rotation speed of the motor to adjust the fineness of the spinning cake in the spinning process.
Specifically, in the spinning process, the controller controls the rotating speed of the motor to be gradually reduced, so that the fineness of the filament yarns of the wound spinning cakes is uniform, and the fineness difference of the spinning cakes is controlled within 2%.
Preferably, the controller 5 comprises a PCL controller and a frequency conversion cabinet, the frequency conversion cabinet receives the set time, the titer parameter and the change of the rotating speed of the motor controlled by the PLC controller, and the glue applying amount is adjusted in a gradual change manner in the production process to produce the strand silk with uniform thickness.
Further, as shown in fig. 2, one end of the pump shaft 3 is drivingly connected to a metering pump (not shown in the figure), the other end of the pump shaft is provided with a pump shaft gear 2, the motor 1 includes a motor gear 4, and the motor gear 4 is in transmission connection with the pump shaft gear 2 to drive the pump shaft 3 to rotate to adjust the gluing amount.
EXAMPLE III
The embodiment further provides a structure of a semi-continuous spinning machine, the semi-continuous spinning machine comprises a centrifugal tank, a lifting rod, a funnel support arranged on the lifting rod and a cam driving the lifting rod to move up and down, a cavity is arranged in the centrifugal tank, and the ratio of the stroke of the cam to the height of the cavity of the centrifugal tank is (130-170): (165-200). The cam structure is shown in fig. 3 and 4.
In the scheme, the lifting stroke of the original cam is increased, the whole machine is partially structurally modified, the height of the manufactured spinning cake is increased, the adjustment range of the winding angle of the spinning cake is expanded, the stable lifting motion is ensured at high spinning speed, the large spinning cake can be produced, and a large amount of labor is saved.
Preferably, in the invention, the stroke of the cam is 130-170 mm. More preferably, the stroke of the cam is 145-155 mm.
The height of the inner chamber of the centrifugal tank is 165-200 mm, and the height of the spinning cake wound in the chamber is 130-170 mm;
preferably, the height of the inner chamber of the centrifugal tank is 175-195 mm, and the height of the spinning cake wound in the chamber is 145-165 mm.
Preferably, the cam is of a symmetrical structure, one end of the cam is a convex end 7, the other end of the cam is a concave end 8, the concave end 8 is the lowest stroke end, and the convex end 7 is the largest stroke end, wherein the distance between the convex end 7 and the concave end 8 is X, the maximum width of the cam on the cam along the direction perpendicular to the symmetry line is Y, and X is (233 mm-300 mm): (245-320 mm).
According to the scheme, the size proportion of the cam in the transverse direction and the longitudinal direction is provided, the size is the optimal size proportion summarized on the basis of a large number of experiments, and the shape of the cam in the size proportion adjusts the spinning cake forming and guarantees the unwinding effect in the winding process.
Preferably, the distance X between the male end and the female end is 286.9mm, and the maximum width Y of the cam in a direction perpendicular to the symmetry line of the cam is 301 mm.
Preferably, the distance between the maximum width line 9 of the cam and the convex end in the direction perpendicular to the symmetry line of the cam is T, and the ratio of the distance between the maximum width line and the concave end is S, then T: S is (144 mm-200 mm): (89 mm-125 mm).
In the scheme, the cam curve is optimized through the limitation of the size proportion. Ensures that the winding angle can still reach 7.4 degrees even at the spinning speed of 110 m/min, and the lifting operation is stable.
Preferably, the centrifugal tank is internally provided with a cylindrical chamber, the inner diameter of the chamber is 204 mm-206 mm, and the thickness of the spinning cake wound in the chamber is 26-40 mm, preferably 35 mm.
In the above scheme, if spinning cake thickness constantly increases, can lead to the spinning cake inside and outside layer strand silk to retract unevenly, and the difference of the skin is further aggravated including denier, intensity, elongation, and spinning cake thickness increase can influence follow-up refining, the stoving process is uneven simultaneously, influences the inherent and external quality of strand silk. Therefore, the outer diameter and the height of the spinning cake are increased, the weight of the spinning cake is increased, the thickness of the spinning cake is controlled within a certain range, and the quality of the spinning cake is ensured.
Preferably, the winding angle of the spinning cake on the semi-continuous spinning machine is 7-7.8 degrees. Preferably, the winding angle is 7.4 degrees.
In the scheme, the larger the spinning cake winding angle is, the higher the lifting speed is, the higher the spinning speed is, and the production efficiency is improved.
Preferably, the semicontinuous spinning machine further comprises a glue supply device and a fineness compensation device, wherein the fineness compensation device is in driving connection with the glue supply device and is used for controlling the glue beating amount of the glue supply device in a gradual change mode, so that the difference of the fineness values of filaments on the inner surface and the outer surface of the spinning cake is lower than 2% of the fineness value of the filaments on the inner surface. Specifically, when the thickness of the spinning cake is gradually increased, the rotating speed of the motor is gradually reduced, so that the situation that the outer layer strand silk is wound at high speed to become thin and the overall quality of the spinning cake is influenced is prevented.
Preferably, the glue supply device comprises a metering pump, the fineness compensation device comprises a controller, a motor and a pump shaft, the motor is connected with the metering pump through the pump shaft, the glue beating amount of the metering pump changes along with the change of the rotating speed of the pump shaft, the controller is electrically connected with the motor, and the controller is used for controlling the rotating speed of the motor to adjust the fineness of the spinning cake to be constant in the spinning process, so that the difference of the fineness values of the filaments on the inner surface and the outer surface of the spinning cake is lower than 2% of the fineness value of the filaments on the inner surface.
Example four
The fourth embodiment provides a cake production process of the semi-continuous spinning machine in the above embodiments: specifically, the winding angle of the spinning cake is set to be 7.0-8.0 ℃, the spinning speed is 80-115 m/min, and in the process of winding the spinning cake, the gradual speed reduction of a motor is controlled to prepare the spinning cake with the height of 130-170 mm, the thickness of 26-36 mm and the fineness difference of filaments on the inner surface and the outer surface being lower than 2% of the fineness of the filaments on the inner surface.
Although the present invention has been described with reference to a preferred embodiment, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. A semi-continuous spinning machine comprises a centrifugal tank, a lifting rod, a funnel support arranged on the lifting rod and a cam for driving the lifting rod to move up and down, wherein a cavity is arranged in the centrifugal tank, and the semi-continuous spinning machine is characterized in that the ratio of the stroke of the cam to the height of the cavity in the centrifugal tank is (130-170): (165-200).
2. The semi-continuous spinning machine according to claim 1, wherein the stroke of said cam is 130 to 170 mm;
more preferably, the stroke of the cam is 145-155 mm.
3. The semi-continuous spinning machine according to claim 2, wherein the height of the chamber in the centrifugal tank is 165mm to 200mm, and the height of the cake wound in the chamber is 130mm to 170 mm;
preferably, the height of the inner chamber of the centrifugal tank is 175-195 mm, and the height of the spinning cake wound in the chamber is 145-165 mm.
4. The semi-continuous spinning machine according to any one of claims 1 to 3, wherein the cam has a symmetrical structure, one end of the cam is a protruding end, the other end of the cam is a recessed end, the recessed end is a lowest stroke end, and the protruding end is a maximum stroke end, wherein the distance between the protruding end and the recessed end is X, the maximum width of the cam along the direction perpendicular to the symmetry line on the cam is Y, and X, Y is (233 mm-300 mm): (245-320 mm).
5. A semi-continuous spinning machine according to claim 4, characterised in that the distance X between said male and female ends is 286.9mm and the maximum width Y of the cam in a direction perpendicular to the symmetry line of the cam is 301 mm.
6. The semi-continuous spinning machine according to claim 4, wherein the distance between the maximum width line of the cam and the convex end in the direction perpendicular to the symmetry line of the cam is T, and the ratio of the distance between the maximum width line of the cam and the concave end is S, then T: S is (144 mm-200 mm): (89 mm-125 mm).
7. The semi-continuous spinning machine according to claim 1, wherein the centrifugal tank has a cylindrical chamber therein, the inner diameter of the chamber is 204mm to 206mm, and the thickness of the spinning cake wound in the chamber is 26mm to 40mm, preferably 35 mm.
8. The semi-continuous spinning machine according to claim 1, wherein the winding angle of the cake on the semi-continuous spinning machine is 7-7.8 degrees.
9. The semi-continuous spinning machine according to claim 1, further comprising a glue supply device and a fineness compensation device, wherein the fineness compensation device is in driving connection with the glue supply device and is used for controlling the glue beating amount of the glue supply device in a gradual change mode, so that the difference of the fineness values of the silk threads on the inner surface and the outer surface of the spinning cake is lower than 2% of the fineness value of the silk threads on the inner surface.
10. A spinning cake production process of the semi-continuous spinning machine according to any one of claims 1 to 9, characterized in that a spinning cake winding angle is set to 7.0 to 8.0 degrees, a spinning speed is set to 80 to 115m/min, and during the spinning of the spinning cake, gradual deceleration of a motor is controlled to prepare a spinning cake having a height of 130mm to 170mm, a thickness of 26mm to 36mm, and a difference in fineness value of filaments on the inner surface and the outer surface is less than 2% of the fineness value of filaments on the inner surface.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910144275.5A CN111621861B (en) | 2019-02-27 | 2019-02-27 | Semi-continuous spinning machine and spinning cake production process thereof |
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| CN201910144275.5A CN111621861B (en) | 2019-02-27 | 2019-02-27 | Semi-continuous spinning machine and spinning cake production process thereof |
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| CN111621861A true CN111621861A (en) | 2020-09-04 |
| CN111621861B CN111621861B (en) | 2023-11-14 |
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| CN201910144275.5A Active CN111621861B (en) | 2019-02-27 | 2019-02-27 | Semi-continuous spinning machine and spinning cake production process thereof |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB650366A (en) * | 1948-11-05 | 1951-02-21 | Courtaulds Ltd | Improvements in and relating to rayon spinning machines |
| CN2170313Y (en) * | 1993-10-19 | 1994-06-29 | 国营经纬纺织机械厂 | High-speed semi-continuous spinning machine for adhesive filament |
| CN2646162Y (en) * | 2003-08-21 | 2004-10-06 | 宜宾丝丽雅股份有限公司 | Lifter cam of spinning machine |
| CN205821535U (en) * | 2016-07-08 | 2016-12-21 | 湖北金环新材料科技有限公司 | Chemical fiber spinning cake fiber number regulation device |
| CN209854289U (en) * | 2019-02-27 | 2019-12-27 | 吉林化纤股份有限公司 | Semi-continuous spinning machine |
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2019
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB650366A (en) * | 1948-11-05 | 1951-02-21 | Courtaulds Ltd | Improvements in and relating to rayon spinning machines |
| CN2170313Y (en) * | 1993-10-19 | 1994-06-29 | 国营经纬纺织机械厂 | High-speed semi-continuous spinning machine for adhesive filament |
| CN2646162Y (en) * | 2003-08-21 | 2004-10-06 | 宜宾丝丽雅股份有限公司 | Lifter cam of spinning machine |
| CN205821535U (en) * | 2016-07-08 | 2016-12-21 | 湖北金环新材料科技有限公司 | Chemical fiber spinning cake fiber number regulation device |
| CN209854289U (en) * | 2019-02-27 | 2019-12-27 | 吉林化纤股份有限公司 | Semi-continuous spinning machine |
Non-Patent Citations (1)
| Title |
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| 黄家玉, 杭州蓝孔雀化学纤维（股份）有限公司 * |
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| CN111621861B (en) | 2023-11-14 |
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