CN210826453U

CN210826453U - Drying device in raw silk degumming process

Info

Publication number: CN210826453U
Application number: CN201921669769.7U
Authority: CN
Inventors: 孙玉钗; 程中浩
Original assignee: Suzhou University
Current assignee: Suzhou University
Priority date: 2019-10-08
Filing date: 2019-10-08
Publication date: 2020-06-23
Anticipated expiration: 2029-10-08

Abstract

The utility model relates to a drying device of raw silk in-process that comes unstuck, drying device include the drying cabinet, are equipped with tow cover and air supply unit in the drying cabinet, and the tow cover is used for passing and treats dry tow, and the top and the bottom of tow cover are equipped with open-top and bottom opening respectively, are equipped with a bellying on the partial lateral wall of tow cover, and the bellying is convex towards the outside of tow cover, and air supply unit is used for blowing in air supply air current with dry tow in the tow cover, and the placement of air supply air current is located the bellying of tow cover. The device can endow the silk with special elastic performance and bulking performance in the drying stage of raw silk degumming.

Description

Drying device in raw silk degumming process

Technical Field

The utility model relates to a weaving science and technical field especially relate to a drying device of raw silk in-process that comes unstuck.

Background

Silk is a fiber obtained by spinning and spinning silk liquid in a silkworm body and then solidifying the spun silk liquid, and is called cocoon silk. Raw silk is a product obtained by reeling mulberry silkworm cocoons and is commonly called mill silk. Wherein the protein accounts for about 70-80%, and the sericin accounts for about 20-30%.

In the raw silk, sericin is irregularly coated on the surface of fibroin in a scaly manner, and plays a role in protecting the fibroin. However, too much sericin can affect the luster, hand feeling and the like of silk and can also affect the subsequent processing of the silk product. Thus, the sericin on the silk must be removed. The process of removing sericin is called degumming. The raw silk is soft and glossy after part of colloid is removed, and is called as 'cooked silk'.

The raw silk degumming process mainly comprises the following steps: pretreatment, primary refining, secondary refining, washing and drying. At present, the primary purpose of raw silk degumming is to remove sericin according to a pre-designed degumming rate, and simultaneously remove impurities such as grease and wax in silk, so that the silk is soft and clean.

Currently, the improvement in the raw silk degumming technology is focused on improving the degumming process and the degumming process, thereby improving the product quality; such as the raw silk degumming method disclosed in CN107190333A and chinese patent application No. 201010192430. X. Secondly, degumming raw silk by adopting a new method; such as the high pressure refining process and the ultrasonic degumming method of silk strand cone yarn disclosed in chinese patent application nos. 201610605911.6, 201610199876.2.

In the raw silk degumming process, the purpose of the conventional drying process is simple and clear: and (3) dissipating water entering the silk in the silk degumming process. In the prior art, no report about increasing the elasticity and bulkiness of silk by a special device and method in the degumming process of raw silk appears.

Silk products are popular with consumers due to their excellent wearability and special appearance. However, silk products also lack vitality due to the lack of innovation and difficulty in breaking through history. In the drying stage in the raw silk degumming process, if special measures are adopted to endow the silk with new performance characteristics, the silk product has more variation and diversity.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model aims at providing a drying device of raw silk in-process that comes unstuck, the utility model discloses a device is rational in infrastructure, utilizes the device can give special elastic property of silk and bulk performance in the dry stage that raw silk comes unstuck.

The utility model discloses a drying device of raw silk in-process that comes unstuck, including the drying cabinet, be equipped with tow cover and air supply unit in the drying cabinet, the tow cover is used for passing and treats dry tow, and the top and the bottom of tow cover are equipped with open-top and bottom opening respectively, are equipped with a bellying on the partial lateral wall of tow cover, and the bellying is convex towards the outside of tow cover, and air supply unit is used for blowing in air supply air current with dry tow in the tow cover, and the placement of air supply air current is located the bellying of tow cover.

Further, the top opening is smaller than the size of the bottom opening.

Further, the air supply unit is located below the bottom opening. Preferably, the air supply unit is positioned below the side of the bottom opening, and an included angle between the direction of air flow generated by the air supply unit and the horizontal plane is smaller than an included angle between the side wall of the tow cover and the horizontal plane.

Further, the air supply unit is a blower.

Further, one end of the protruding portion is located on the middle upper portion of the side wall, and the other end is a bottom edge of the side wall. Preferably, the ratio of the height of the protrusions to the height of the tow shroud is 1: 1-4.

Further, the shape of the convex part can be selected according to requirements, and preferably, the surface of the convex part is an arc spherical surface, so that part of the side wall of the tow cover is provided with the arc-shaped convex part, and the other part of the side wall extends along a straight line.

Further, the ratio of the inner diameters of the top opening and the bottom opening is 1: 10-50. Preferably, the ratio of the inner diameters of the top opening and the bottom opening is from 1:10 to 1: 20.

Further, the included angle of the side wall of the tow hood and the vertical direction is 5-25 degrees, and the included angle is preferably 10 degrees.

Furthermore, a winding mechanism is arranged on the outlet end of the drying box and used for winding the dried tows to form a package.

Further, the take-up mechanism is located above the top opening.

Further, the top opening is disposed proximate to the outlet end of the drying oven and the bottom opening is disposed proximate to the inlet end of the drying oven.

Further, in the present invention, the shape of the tow cover can be selected as required, and preferably, the tow cover is substantially conical; the top opening and the bottom opening are both circular.

The utility model discloses in, "the point of fall of air supply air current" refers to the nodical of air supply air current and silk bundle cover.

The utility model discloses a drying device, because the setting of bellying among the drying device, when the air supply air current that air supply unit produced blows to treating dry tow surface, can make and treat that dry tow is crooked towards the direction of protrusion of bellying, and the falling point of this air supply air current is located the bellying of tow cover, can make like this:

① when the tow to be dried is blown to the range of the convex part under the action of the air flow, the gaps among the fibers of the tow are enlarged, the tortuous state of the fibers is enhanced, and the elasticity and bulkiness of the silk are increased;

② the air flow of the air supply can not blow to the dried tows, so that the subsequent processing process of the tows is not influenced by the air flow.

The silk monofilament density of mulberry is generally between 2.5D and 3.5D. The raw silk is porous fiber formed by combining a plurality of silk monofilaments in the silk reeling process, and gaps exist among the fibers. The cross section of the raw silk is triangular, and the raw silk is arranged in an irregular conical spiral line and is accompanied with a slight zigzag state. The utility model discloses utilize this characteristics of raw silk, adopt special device in the last process that comes unstuck-drying process, through the effect of air current, make the hot-air blow in the silk bundle, enlarge and increase the clearance between silk to increase the tortuous state of silk, give certain elasticity and bulk nature of silk.

Borrow by above-mentioned scheme, the utility model discloses at least, have following advantage:

the utility model provides a drying device of raw silk in-process that comes unstuck, through the device, when silk to after coming unstuck carries out the drying, can make the moisture in the silk scatter and disappear as required, increase elastic treatment and increase the expansibility processing to the silk again.

The above description is only an overview of the technical solution of the present invention, and in order to make the technical means of the present invention clearer and can be implemented according to the content of the description, the following detailed description is made with reference to the preferred embodiments of the present invention and accompanying drawings.

Drawings

FIG. 1 is a schematic sectional view of a drying apparatus used in the degumming process of raw silk according to the present invention;

description of reference numerals:

1-tow before drying; 2-dried tow; 3-drying oven; 4-an air supply unit; 5-air supply flow; 6-tow hood; 60-a boss; 61-open top; 62-open at the bottom.

Detailed Description

The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

Example 1

Referring to fig. 1, the drying apparatus for degumming raw silk according to a preferred embodiment of the present invention comprises a drying box 3, a thermal environment is provided in the drying box 3, the temperature of the thermal environment can be set as required, and the drying box 3 comprises an inlet end at the lower part and an outlet end at the top part. The dried tows 1 enter the drying box 3 from the inlet end, the elasticity and the bulkiness are increased while the drying in the drying box 3 is finished, and the dried tows 2 pass out from the outlet end. A winding mechanism is provided at the outlet end of the drying box 3, and the dried tow 2 is wound into a desired package by the winding mechanism.

The drying box 3 is internally provided with a tow cover 6 and an air supply unit 4, the tow cover 6 is used for penetrating tows to be dried, the tow cover 6 is approximately conical, the height of the tow cover 6 is 30cm, the included angle α between the conical side wall and the vertical direction is 10 degrees, the top and the bottom of the tow cover 6 are respectively provided with a top opening 61 and a bottom opening 62, the top opening 61 and the bottom opening 62 are both circular, the top opening 61 is arranged close to the outlet end of the drying box 3, the bottom opening 62 is arranged close to the inlet end of the drying box 3, the diameter of the top opening 61 is 1cm, a bulge 60 is arranged on part of the side wall of the bottom opening 62, the diameter of the bottom opening is 16 cm., the bulge 60 protrudes towards the outer side of the tow cover 6, the surface of the bulge 60 is in an arc spherical surface, one end part of the bulge 60 is arranged on the middle upper part of the side wall, the other end part is the bottom edge of the side wall, the height of the bulge 60 is 20 cm., and the tow cover 6 is in a cross section view at a certain angle, as shown in the figure, the tow cover 6 has a left-right symmetrical structure, the left side wall and the left side wall (left side wall and right side wall) are formed by the left-right side wall, namely, the.

The air blowing unit 4 is located below the side of the bottom opening 62. The air supply unit 4 blows air according to a specified direction and air speed, and the included angle between the direction of air flow generated by the air supply unit 4 and the horizontal plane is smaller than the included angle between the side wall of the tow cover 6 and the horizontal plane. The blowing unit 4 blows a blowing air flow 5 into the tow cover 6 to dry the tow, and the falling point of the blowing air flow 5 is located in the protrusion 60 of the tow cover 6. The air blowing unit 4 is preferably a blower.

The drying method in the raw silk degumming process by adopting the drying device comprises the following specific steps:

1) the degummed raw tow after washing was continuously and uniformly passed through the drying oven 3 at a constant drawing speed (speed 0.2m/s), the linear density of the tow was 20/22D, 40/44D, 60/66D, etc., and the temperature in the drying oven 3 was 100 ℃. The degummed raw silk bundle after washing enters the drying box 3, enters from the bottom opening 62 of the silk bundle cover 6 and passes out from the top opening 61. In the process, the air supply unit 4 supplies air from the oblique lower part of the bottom opening 62 to generate air supply flow 5, the wind direction is from bottom to top, and a certain included angle is formed between the air supply flow and the horizontal plane, and the included angle can be selected to be 30 degrees. The falling point of the blowing air flow 5 on the tow cover 6 is controlled within the range of the convex portion 60. The temperature of the supply air stream 5 is 100 ℃. Under air supply stream 5's effect, the degumming raw silk bundle after the washing is crooked towards the bulge direction of bellying 60 for the clearance enlarges between the fibre of silk bundle, and fibrous tortuous state strengthens, thereby increases the elasticity and bulky nature of silk, and simultaneously, air supply stream 5 can not blow the outside silk bundle of bellying 60, can not influence the further processing of the silk bundle 2 after the drying.

2) The dried tow 2 exits through the top opening 61 and is wound by a winding mechanism to form a package.

The degumming raw silk bundle is dried by adopting the method, so that the moisture in the silk can be dissipated, and the elasticity and bulkiness of the silk are increased. Compare with the dry raw silk that comes unstuck of ordinary method, adopt the utility model discloses the dry raw silk that comes unstuck of ordinary method is all higher than to the crimp shrinkage factor, the crimp stability of silk after the drying, and the silk has higher elasticity resilience and bulk nature, feels comparatively soft.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.

Claims

1. A drying device in the raw silk degumming process is characterized in that: including the drying cabinet, be equipped with tow cover and air supply unit in the drying cabinet, the tow cover is used for passing treats dry tow, the top and the bottom of tow cover are equipped with open-top and bottom opening respectively, be equipped with a bellying on the partial lateral wall of tow cover, the bellying orientation the outside of tow cover is protruding, the air supply unit be used for to blow in air supply air current with dry tow in the tow cover, the drop point of air supply air current is located in the bellying of tow cover.

2. Drying apparatus according to claim 1, wherein: the top opening is smaller than the size of the bottom opening.

3. Drying apparatus according to claim 1, wherein: the air supply unit is positioned below the bottom opening.

4. Drying apparatus according to claim 1, wherein: one end of the protruding part is located on the middle upper part of the side wall, and the other end of the protruding part is the bottom edge of the side wall.

5. Drying apparatus according to claim 1, wherein: the surface of the convex part is an arc spherical surface.

6. Drying apparatus according to claim 5, wherein: the ratio of the inner diameters of the top opening and the bottom opening is 1: 10-50.

7. Drying apparatus according to claim 1, wherein: the included angle between the side wall of the tow cover and the vertical direction is 5-25 degrees.

8. Drying apparatus according to claim 1, wherein: the ratio of the height of the convex part to the height of the tow cover is 1: 1-4.

9. Drying apparatus according to claim 1, wherein: and a winding mechanism is arranged at the outlet end of the drying box and is used for winding the dried tows to form a package.