CN107687029B - Wet spinning multifunctional post-processing integrated equipment and processing method - Google Patents

Abstract

The invention designs a multifunctional integrated equipment suitable for post-treatment of wet-spinning fibers, and involves post-treatment processes of fibers including: drying, drawing and heat setting. The equipment specifically includes three functional areas of drying, drawing and heat setting. It is an integrated floor structure. The advantage of the equipment is that it occupies a small area and has the processing effect of industrial production. At the same time, it makes up for the lengthy processing line of post-processing equipment in industrial production. , Complicated problems. The overall size of the equipment is L/W/H=2500/1500/2800mm, the drafting and setting areas are multi-purpose, and the total drafting ratio is 0-20 times. This equipment is suitable for scientific research or small batch production and industrialization Simulate pilot scale-up experiments.

Description

Wet spinning multifunctional post-processing integrated equipment and processing method

technical field

The invention relates to a multifunctional integrated equipment for chemical fiber post-processing, in particular to post-processing equipment for wet spinning.

Background technique

In the chemical fiber production industry, the traditional wet spinning process is complicated, and most of them are distributed and independent assembly line operations, that is, the process includes coagulation forming, washing, oiling, drying, drawing, heat setting, winding and other processes. Each process has corresponding independent processing equipment, and the whole spinning process is long and occupies a large area. In conventional chemical fiber production, in order to obtain chemical fibers with excellent comprehensive physical and mechanical properties, a complex heat treatment process is required for the fibers. Different fiber varieties and different forming methods have different post-treatment processes. Post-treatment processes mainly refer to drying, drawing and heat setting. Drafting and heat setting are divided into various forms according to the working medium and working method. The post-treatment process of different fibers needs to be matched with different processing methods, which makes the post-processing process complicated and diverse. Some commonly used processing methods such as wet heat drafting , dry heat drawing, tension heat setting and relaxation heat setting, each process is completed by independent equipment, and the production line is long and complicated. This large-scale independent sub-process equipment is more suitable for large-scale large-scale production, but it is difficult to implement for scientific research and trial spinning of small-batch products, and the feasibility is relatively poor.

Contents of the invention

The present invention designs a wet spinning multifunctional post-processing integrated equipment, which is used for laboratory research and fiber post-processing of small-batch trial-manufactured products. Through the matching of process design and technical parameters, drying, drawing, heating The shaping process is closely combined in one frame, reducing the equipment footprint, so that the entire fiber post-processing process can be realized on one device, the processing process is shortened, and the rational allocation of resources is effectively and reasonably realized.

The technical solution of the present invention includes the following aspects: wet spinning multifunctional post-processing integrated equipment, including an integrated floor-standing frame, and the frame is sequentially provided with a drying area, a drafting area and a shaping area from left to right;

The left side wall of the drying area is provided with a tension frame and a thread feeding channel, the side wall adjacent to the drying area and the drafting area is provided with a first channel, and the side wall adjacent to the drafting area and the shaping area There is a second channel on the upper side, and a silk outlet channel and an upper oiler are arranged on the right side wall of the shaping area.

Further, the front sides of the drying area, the drafting area and the shaping area are respectively provided with sliding doors, and the sliding doors pass through the lifting door power motor arranged on the frame and the sliding door guide rail on the top of the frame and The pull rope connected to the sliding door is driven to move up and down, and the other end of the pull rope is provided with a counterweight. The sliding door is driven up and down by the power motor of the sliding door and the sliding door guide rail on the top, which is convenient and quick.

Further, separate glass windows are set on each sliding door. It is convenient and fast to observe the silk thread processing conditions in each area.

Further, fourteen cold rolls are arranged inside the drying area, which are arranged vertically in double rows and laid in an S-shape inclined from top to bottom; an air inlet is set at the bottom of the drying area, and an air outlet is set at the top; the air inlet A heater is provided.

Further, a temperature display device is set inside the drying area.

Further, the inside of the drafting area is provided with a continuous two-stage tense entanglement drafting mode, and the drafting rollers are arranged in an isosceles triangle, and are designed as a 2-3-2 combination structure, the total drafting multiple is 0-20 times, and the first-level two Any combination of stage drafting multiples; the bottom of the drafting area is provided with an air inlet, and the top is provided with an air outlet; the air inlet is provided with a heater and a humidifier.

Further, a temperature display device and a humidity detection display device are set inside the drafting area.

Further, two sets of stepped 0.4-0.45m long paired rollers are set inside the shaping area, and the drafting rollers are arranged in a stepped matte shape, which can realize tension heat setting and relaxation heat setting at the same time.

The present invention also provides a wet spinning multi-functional post-processing method realized by using the wet spinning multi-functional post-processing integrated equipment, and the specific steps are as follows:

Step 1. The primary fiber tow is clamped by the tension frame, fed by the rotation of the rubber roller, the sliver enters the drying area through the feeding channel, the cold roller guides the thread, and the S-shaped inclined laying, the hot air in the drying area does not circulate from bottom to top Upward progressive drying, air temperature 25-300°C, wind speed 3-25m/s, residence time 13-20s, the fiber tow loses moisture under the action of hot air to complete the drying process;

Step 2. The dried fiber tow enters the drafting area from the first channel, lays the filaments in an S shape, and passes through the continuous two-stage tensely entangled drafting rollers in sequence. The drafting rollers are heated rollers, and the working temperature is 25-300°C. Auxiliary hot air heating, humidification of the environment, the humidity can be adjusted between 30-90%, and the drafting is completed under the action of temperature and humidity;

Step 3. The fiber tow after drafting enters the shaping area from the third channel, and passes through two sets of stepped 0.4-0.45m long paired rollers in sequence from bottom to top for shaping. The shaping area is a hot roller structure, and the working temperature 25-300°C, winding 1-80 turns, setting time 10-70s, can realize tense heat setting and relaxation heat setting at the same time, after setting, the fiber tow passes through the oiling tanker along the silk outlet channel, and then the silk is discharged into subsequent collection equipment.

The present invention designs a wet-spinning multi-functional post-processing integrated equipment, which has the advantages of (1) having the processing effect of industrialized production, and at the same time making up for the lengthy, complicated and expensive processing lines of post-processing equipment in industrialized production. The disadvantage of large floor area; (2) The progressive drying mode is adopted to improve the drying efficiency of the filament; (3) The drafting area is designed as a continuous two-stage tense and cohesive drafting mode, with strong cohesion and matching range of drafting multiples Large (0-20 times), suitable for the post-processing of conventional or customized wet-spun chemical fiber products, and can realize the switching between wet-heat drafting mode and dry-heat drafting mode; (4) The heat setting is a unique two-stage stepped length The combined structure of rollers can carry out heat treatment of tension and relaxation at the same time. In actual production, the virgin fiber can directly enter the equipment for continuous operation, which avoids the intermittent operation mode of pre-spinning and post-processing in the previous laboratory research, improves production efficiency, and is convenient for laboratory research applications and direct acquisition of theoretical data.

Description of drawings

Fig. 1 is a schematic structural view of the present invention.

Figure 2 is a cross-sectional view of the drafting zone.

In the figure: 1. Tension frame, 2. Drying area, 3. Drafting area, 4. Shaping area, 5. Lifting door, 6. Air outlet, 7. Tanker, 8. Air inlet, 9. Humidifier, 10. Godet roller, 11. Drafting roller, 12. Sizing roller, 13. Lifting door power motor, 14. Counterweight, 15. Fan, 16. Heater, 17. Pulling door guide wheel.

Detailed ways

The present invention will be further described below in conjunction with the accompanying drawings.

As shown in Figures 1 and 2, the wet spinning multifunctional post-processing integrated equipment in this embodiment has an overall size of 2500x1500x2800mm in length, width and height, and the working area includes a drying area, a drafting area, and a heat setting area. The frame is an integrated floor structure, independent electrical control system, plus auxiliary facilities such as heat preservation, humidification, and fan. The left side wall of the drying area 2 is provided with a tension frame 1 and a wire feeding channel, and the side wall adjacent to the drying area 2 and the drawing area 3 is provided with a first channel, and the drawing area 3 and the shaping area A second channel is provided on the adjacent side wall of the 4, and a silk outlet channel and an upper oiler 7 are provided on the right side wall of the shaping area 4.

The front sides of the drying area 2 , the drafting area 3 and the shaping area 4 are respectively provided with sliding doors 5 , and each of the sliding doors 5 is provided with a separate glass window. The lifting door 5 is driven to move up and down by the lifting door power motor 13 arranged on the frame, the lifting door guide rail 17 on the top of the frame and the stay cord connected to the draw door, and the other end of the stay cord is provided with a configuration 14 . The sliding door is driven up and down by the power motor of the sliding door and the sliding door guide rail on the top, which is convenient and quick.

The drying area is designed with 14 cold rolls, arranged vertically and dispersedly in double rows, laying silk in an S-shape from top to bottom, with an effective drying length of 4.4 meters and a residence time of 13-20s. The size of the drying area is L/W/H=600 /1000/1200mm, the hot air at the bottom is dry, the hot air does not circulate, the wind speed and temperature are controllable, and the temperature control display is set inside the drafting chamber. An air inlet 8 is arranged at the bottom of the drying area 2 , and an air outlet 6 is arranged at the top; the air inlet 8 is provided with a heater 16 .

The drafting area is tensely cohesive and continuous two-stage hot roller drafting, the total drafting multiple is 0-20 times, and the first-stage and second-stage drafting multiples can be combined arbitrarily. The drafting roller is a hot roller structure, and the working temperature is 25-300°C. Auxiliary hot air heating, environment humidification, humidity adjustable from 30-90%, temperature and humidity detection and electronic display in the drafting room, drafting area size L/W/H=1000/1000/1200mm. The hot air does not circulate and assists heating from bottom to top. The drafting room is equipped with temperature and humidity monitoring. The switch between wet and dry drafting can be realized through the electrical adjustment system. The drafting rollers are arranged in an isosceles triangle and designed as 2-3- 2 combination structure. An air inlet 8 is arranged at the bottom of the drafting area 3, and an air outlet 6 is arranged at the top; the air inlet 8 is provided with a heater 16 and a humidifier 9.

The structure of the relaxation heat setting area is a combination of two sets of stepped 400-450mm long pair of rollers, a heat roller structure, and a working temperature of 25-300°C. Winding wire 1-80 circles, setting time 10-70s. Styling can realize tense heat setting and relaxation heat setting at the same time, the size of the setting area L/W/H=900/1500/1200mm, and the drafting rollers are arranged in a stepped "field" shape. After the wire feeding operation is completed, pull down the insulation sliding door, and the fibers will complete the drying, drawing and heat-setting process in sequence inside the equipment. Through the window, you can observe the running conditions of the internal filaments from the outside.

The present invention's silk sliver operation situation, specifically as follows:

Step 1. The primary fiber tow is clamped by the tension frame, fed by the rotation of the rubber roller, the sliver enters the drying area through the feeding channel, the cold roller guides the thread, and the S-shaped inclined laying, the hot air in the drying area does not circulate from bottom to top Upward progressive drying, air temperature 25-300°C, wind speed 3-25m/s, residence time 13-20s, the fiber tow loses moisture under the action of hot air to complete the drying process;

Step 2. The dried fiber tow enters the drafting area from the first channel, lays the filaments in an S shape, and passes through the continuous two-stage tensely entangled drafting rollers in sequence. The drafting rollers are heated rollers, and the working temperature is 25-300°C. Auxiliary hot air heating, humidification of the environment, the humidity can be adjusted between 30-90%, and the drafting is completed under the action of temperature and humidity;

Step 3. The fiber tow after drafting enters the shaping area from the third channel, and passes through two sets of stepped 0.4-0.45m long paired rollers in sequence from bottom to top for shaping. The shaping area is a hot roller structure, and the working temperature 25-300°C, winding 1-80 turns, setting time 10-70s, can realize tense heat setting and relaxation heat setting at the same time, after setting, the fiber tow passes through the oiling tanker along the silk outlet channel, and then the silk is discharged into subsequent collection equipment.

The above is only a preferred embodiment of the present invention, and it should be pointed out that for those of ordinary skill in the art, some improvements and modifications can be made without departing from the principle of the present invention. It should be regarded as the protection scope of the present invention.

Claims (8)

1. the multi-functional post-processing approach of wet spinning realized using the multi-functional post-processing integration apparatus of wet spinning, feature Be: specific step is as follows:

Step 1: as-spun fibre tow is clamped by tension bracket, feed silk by rubber roll rotation, strand through entering a channel enter it is dry Dry area, chilling roller seal wire, S type tilt piddler, and hot wind does not recycle progressive drying from bottom to top in dry section, and 25-300 DEG C of wind-warm syndrome, Wind speed 3-25m/s, residence time 13-20s, fibre bundle dry out under the action of hot wind and complete drying process；

Step 2: the fibre bundle after dry enters draft area by first passage, S-shaped piddler, successively sequence passes through continuous two-stage Nervous obvolvent draw roll, draw roll are hot-rolling structure, 25-300 DEG C of operating temperature, assist Hot-blast Heating, environment humidification, humidity exists 30-90% is adjustable, completes drawing-off under temperature and humidity effect；

Step 3: the fibre bundle after drawing-off enters shaping area by third channel again, sequence from low to uper part passes through two groups of stageds 0.4-0.45m long closes setting roll sizing to roller group, and shaping area is hot-rolling structure, and 25-300 DEG C of operating temperature, wrapping wire 1-80 circle is fixed Shape time 10-70s can be achieved at the same time nervous thermal finalization and relaxation heat setting, and fibre bundle is passed through along wire vent channel after sizing It crosses wire vent after finish oil disc oils and enters later collection equipment；

The multi-functional post-processing integration apparatus of wet spinning, including open frame is integrally landed, in the rack from left to right It is sequentially set with dry section (2), draft area (3) and shaping area (4)；

Tension bracket (1) is provided on dry section (2) left side wall and enters a channel, the dry section (2) and draft area (3) phase It is provided with first passage on adjacent side wall, is provided with second channel on the draft area (3) and shaping area (4) adjacent side wall, Wire vent channel and finish oil disc (7) are provided on shaping area (4) right side wall.

2. the multi-functional post-processing approach of wet spinning according to claim 1, it is characterised in that: the dry section (2) is led It stretches and is respectively arranged with lift slide door (5) on front side of area (3) and shaping area (4), the lift slide door (5) passes through the lifting that is set in rack The drawstring drive of the lift slide door guide rail (17) and connection lift slide door of door power motor (13) and frame top moves up and down, drawstring Counterweight (14) are arranged in the other end.

3. the multi-functional post-processing approach of wet spinning according to claim 2, it is characterised in that: on each lift slide door (5) Independent glass vision panel is set.

4. the multi-functional post-processing approach of wet spinning according to claim 1, it is characterised in that: in the dry section (2) Portion is provided with 14 chilling rollers, and double-row vertical dispersion arrangement, S-shaped tilts piddler from top to bottom；Dry section (2) bottom setting air inlet Air outlet (6) are arranged in mouth (8), top；Having heaters (16) are arranged in the air inlet (8).

5. the multi-functional post-processing approach of wet spinning according to claim 4, it is characterised in that: in the dry section (2) Temperature indicating device is arranged in portion.

6. the multi-functional post-processing approach of wet spinning according to claim 1, it is characterised in that: in the draft area (3) Continuous two-stage anxiety obvolvent drawing-off mode is arranged in portion, and draw roll isosceles triangle is enumerated, and is designed to 2-3-2 composite structure, is led 0-20 times of general times is stretched, level-one second level drafting multiple any combination；Air inlet (8) are arranged in draft area (3) bottom, and top is provided Air port (6)；Air inlet (8) setting having heaters (16) and humidifier (9).

7. the multi-functional post-processing approach of wet spinning according to claim 6, it is characterised in that: in the draft area (3) Temperature indicating device and humidity detection display device is arranged in portion.

8. the multi-functional post-processing approach of wet spinning according to claim 1, it is characterised in that: in the shaping area (4) Portion is arranged two groups of staged 0.4-0.45m long and closes customized pattern to roller group, and the arrangement of draw roll staged matrix pattern can be real simultaneously Existing anxiety thermal finalization and relaxation heat setting.