A hot air circulating drawing box for water-soluble polymer staple production

Abstract

The utility model discloses a kind of for water-soluble polymer short fiber hot air circulation drafting box, including fan, hot air circulation system and the conveying device consisting of conveyor belt and drafting roller cylinder.The utility model is by adopting "Z" type conveying structure, and adopts oven type hot air circulation heating structure, save space, increase drafting heating time and area, improve heat treatment efficiency, reduce use cost, improve actual production benefit.

Description

Technical Field

[0001] This utility model belongs to the field of water-soluble polymer production technology, specifically referring to a hot air circulating drawing box for the production of water-soluble polymer short fibers. Background Technology

[0002] Water-soluble fiber is a type of fiber that can dissolve in water or hydrolyze into water-soluble molecules or compounds upon contact with water. Water-soluble fibers include natural soluble polymer fibers (seaweed fiber), semi-synthetic soluble polymer fibers (carboxymethyl cellulose fiber), and synthetic soluble polymer fibers (oxygenated polyoxyethylene fiber), among others. In recent years, with continuous advancements in science and technology and increasing environmental awareness, the biodegradable properties of water-soluble fibers have gained attention, leading to rapid development in traditional textiles, nonwovens, the medical and health industry, and the building materials industry. Examples include the development of medium- and high-count cotton and linen yarns, the preparation of medical and health materials, and the use of water-soluble fibers in the construction industry to create composite reinforcing materials with cement, demonstrating broad application prospects.

[0003] The production process of water-soluble polymer staple fibers mainly includes steps such as dopant preparation, spinning, heat treatment, cutting, post-treatment, and packaging. In the post-treatment heat setting process, hot steam stretching and setting is generally used. A steam plate is installed inside the heating chamber, releasing hot steam from both the top and bottom to bake the fiber bundle. This effectively stretches and heat-sets the fiber bundle, resulting in high production efficiency. However, water-soluble fibers are prone to swelling or even hydrolysis under the action of hot steam, damaging the fiber structure and impairing the quality of the water-soluble fibers. Summary of the Invention

[0004] In view of the above situation and to overcome the defects of the prior art, this utility model provides a hot air circulating drawing box for the production of water-soluble polymer short fibers, which at least partially solves the above problems.

[0005] The technical solution adopted by this utility model is as follows: This utility model proposes a hot air circulating drawing box for the production of water-soluble polymer short fibers, including a box body, a box door, and a circuit control system located on the side of the box body. The feature is that it also includes a conveying mechanism located inside the box body, a fan mechanism located in the middle of the lower wall of the box body, and a hot air circulation system located inside the box body.

[0006] Furthermore, the conveying mechanism consists of a conveyor belt and a drawing roller mechanism. The conveyor belt is located on both sides of the box body, serving as the yarn inlet and yarn outlet, respectively. The drawing rollers are respectively located near the ends of the conveyor belt. The "Z"-shaped conveying mechanism formed by the two is used to tension and pull the yarn bundle for horizontal transport between the upper and lower conveyor belts.

[0007] Furthermore, the motor connected to the fan is located at the bottom of the housing, and the impeller of the fan is located inside the housing.

[0008] Furthermore, the hot air circulation system includes heating systems on both sides of the fan and a hot air mixing chamber, as well as a return air mixing chamber above the fan.

[0009] Furthermore, the heating system includes a heating chamber and guide vanes on both sides of the heating chamber.

[0010] Furthermore, the hot air mixing chamber includes an airflow control valve and a hot air ventilation hole located above the oblique side of the hot air mixing chamber.

[0011] Furthermore, the return air mixing chamber includes a return air baffle and a fan intake located below the return air mixing chamber.

[0012] Furthermore, the box body and the box door are connected by hinges, the box door can be opened by a handle, the box body has a wire bundle inlet and a wire bundle outlet on both sides, the outer side of the box body is provided with a heat insulation plate and a side circuit control system for the box body.

[0013] Furthermore, the door and the outer side of the box are provided with heat insulation material.

[0014] The beneficial effects of this utility model by adopting the above structure are as follows: (1) The technical advantages of this utility model are that the hot air circulating stretching reduces the loss of water-soluble polymer short fibers and ensures the quality of water-soluble polymer short fibers; the “Z” type conveying structure increases the heating area of ​​water-soluble polymer short fibers in the same area; and multiple hot air circulation systems are used to improve heat treatment efficiency and increase production benefits. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the internal structure of the water-soluble polymer short fiber drawing and heating box of this utility model; Figure 2 This is a schematic diagram of the overall structure of this utility model.

[0016] The components are as follows: 1. Box door; 2. Box body; 3. Insulation board; 4. Wind speed sensor; 5. Temperature sensor; 6. Conveyor belt; 7. Drafting roller; 8. Impeller; 9. Motor; 10. Heating box; 11. Guide plate; 12. Air volume control valve; 13. Hot air mixing chamber; 14. Hot air ventilation hole; 15. Return air mixing chamber; 16. Circuit control box; 17. Hinges; 18. Handles; 19. Safety device; 20. Return air baffle; 21. Fan air intake.

[0017] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0019] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0020] like Figure 1 , Figure 2 As shown, a water-soluble polymer fiber drawing and heating box includes a box body 2, a box door 1, a wind speed sensor 4 and a temperature sensor 5 located above the box body, a conveying mechanism consisting of a conveyor belt 6 and a drawing roller 7 located inside the box body, a fan 8 and a motor 9 located below the box body, and heating boxes 10 and hot air mixing chambers 13 located on both sides below the box body. It also includes a return air mixing chamber 15 located above the fan 8 inside the box body 2 and hot air ventilation holes 14 inside the box body.

[0021] The interior of the box body 2 and the box door 1 is filled with thermal insulation material. The box body 2 and the box door 1 are connected by hinges 17. The box door 1 is opened by handle 18. Conveyor belts 6 are provided on both sides of the box body 2, which are the filament inlet and the filament outlet, respectively. The outer side of the filament inlet and the filament outlet is provided with heat insulation plate 3. The outer side of the box body 2 is provided with circuit control box 16. The inner side of the box door 1 is equipped with safety device 19.

[0022] Impeller 8 and motor 9 constitute the fan mechanism of the stretching heating box 10. The impeller 8 of the fan is located inside the box 2, and the motor 9 connected to the fan is located below the box 2. An insulation layer is provided between the impeller and the motor.

[0023] The hot air circulation control system includes heating systems on both sides of the fan, a hot air mixing chamber 13, and a return air mixing chamber 15 above the fan.

[0024] The return air mixing chamber 15 includes a return air baffle 20 and a fan air intake 21 located below the return air mixing chamber.

[0025] The heating system includes a heating chamber 10 and guide vanes 11 on both sides of the heating chamber 10.

[0026] The hot air mixing chamber 13 includes an air volume control valve 12 and a hot air vent 14 located above the oblique side of the hot air mixing chamber 13.

[0027] Temperature sensor 5 is installed on the top of chamber 2 and heating chamber 10, and wind speed sensor 4 is installed on the top of chamber 2 at the position corresponding to hot air ventilation hole 14.

[0028] The working principle of this water-soluble polymer short fiber drawing and heating box is as follows: Open the box door 1 through the handle 18, then open the safety device 19 through the safety device button on the handle 18, fix the box door 1, and feed the water-soluble polymer fiber into the box 2 from the conveyor belt 6 on the right side of the box, i.e. the fiber bundle inlet, pass through the drawing roller 7, and exit from the other side conveyor belt 6, i.e. the fiber bundle outlet.

[0029] The cold air inside the housing 2 is drawn in through the fan intake 21, and after passing through the return air baffle 20 to block and equalize the flow, it enters the impeller 8 of the fan mechanism.

[0030] The cold air entering the fan impeller 8 is sent to the left and right sides and is evenly distributed into the heating box 10 for heating through the guide plate 11.

[0031] After being heated by the heating chamber 10, the hot air is distributed and evenly distributed by the guide plate 11 and enters the hot air mixing chamber 13. The hot air is then sent into the chamber 2 through the hot air ventilation hole 14 by the air volume control valve 12.

[0032] Temperature sensor 5 is used to detect whether the temperature inside the box 2 and at various locations in the heating box 10 is uniform and whether it exceeds the allowable value for fiber heating.

[0033] The wind speed sensor 4 is used to detect whether the wind speed at various locations inside the box 2 is uniform and whether it exceeds the allowable value for fiber heating.

[0034] See Table 1 for equipment technical parameters.

[0035] Table 1 Heating temperature 10-300℃ Fan rated power 1500 W Stretch ratio 1.5-3 Conveyor belt speed 100-240m / min It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

[0037] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention. The actual structure is not limited to this. In conclusion, if a person skilled in the art is inspired by this description and designs a similar structure and embodiment without departing from the inventive spirit of the present invention, such design should fall within the protection scope of the present invention.

Claims

1. A hot air circulating drawing box for the production of water-soluble polymer staple fibers, comprising a box body (2), a box door (1), and a circuit control system located beside the box body (2), characterized in that: It also includes a conveying mechanism located inside the housing (2), a fan mechanism located in the middle of the lower wall of the housing (2), and a hot air circulation system located inside the housing (2); The conveying mechanism consists of a conveyor belt (6) and a drawing roller (7). The conveyor belt (6) is located on both sides of the box body, serving as the yarn inlet and yarn outlet, respectively. The drawing roller (7) is located near the end of the conveyor belt (6). The "Z"-shaped conveying mechanism formed by the two is used to tension and pull the yarn for horizontal conveying between the upper and lower conveyor belts.

2. The hot air circulating drawing box for the production of water-soluble polymer staple fibers according to claim 1, characterized in that: The motor (9) connected to the fan is located at the bottom of the housing (2), and the impeller (8) of the fan is located inside the housing (2).

3. The hot air circulating drawing box for the production of water-soluble polymer staple fibers according to claim 1, characterized in that: The hot air circulation system includes heating systems on both sides of the fan and a hot air mixing chamber (13) and a return air mixing chamber (15) above the fan.

4. The hot air circulating drawing box for the production of water-soluble polymer staple fibers according to claim 3, characterized in that: The heating system includes a heating box (10) and guide plates (11) on both sides of the heating box (10).

5. The hot air circulating drawing box for the production of water-soluble polymer staple fibers according to claim 3, characterized in that: The hot air mixing chamber (13) includes an air volume control valve (12) and a hot air ventilation hole (14) located above the oblique side of the hot air mixing chamber (13).

6. The hot air circulating drawing box for the production of water-soluble polymer staple fibers according to claim 3, characterized in that: The return air mixing chamber (15) includes a return air baffle (20) and a fan intake (21) located below the return air mixing chamber (15).

7. The hot air circulating drawing box for the production of water-soluble polymer staple fibers according to claim 1, characterized in that: The box body (2) and the box door (1) are connected by a hinge (17). The box door (1) can be opened by a handle (18). The box body (2) has a filament inlet and a filament outlet on both sides. The outer side of the box body is provided with a heat insulation plate (3) and a circuit control system on the side of the box body (2).

8. The hot air circulating drawing box for the production of water-soluble polymer staple fibers according to claim 1, characterized in that: The outer sides of the box door (1) and the box body (2) are provided with heat insulation material.

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