Steam box for drafting composite fibers
By setting up an anti-spill baffle and slow-flow protrusion at the outlet end of the steam box, the problems of fast steam overflow and short fiber residence time in the steam box are solved, and the heating and humidification effect and production efficiency are improved.
Patent Information
- Application Number
- CN202422209958.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-10
- Publication Date
- 2025-06-27
- Estimated Expiration
- 2034-09-10
AI Technical Summary
In the prior art, steam overflows in the steam tank faster and fiber residence time is short, resulting in poor heating and humidification effects and affecting production efficiency.
A steam box for composite fiber drafting is designed. By setting a spill-proof baffle at the outlet ends of the steam upper cover and the steam lower cover, the space of the steam environment is extended, and a wavy slow-flow protrusion is provided at the long side end of the spill-proof baffle to reduce the steam flow rate to increase the retention time of the fiber in the steam environment.
It effectively increases the retention time of fibers in the steam environment, improves the heating and humidification effect, reduces the exposure time of fibers in the external environment, and thus improves production efficiency.
Smart Images
Figure CN223033521U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of fiber production equipment, in particular to a steam box for drawing composite fibers. Background Art
[0002] When performing high-performance drawing of composite fibers, a steam box is used to heat the fibers. There are steam pipes inside the steam box that spray steam at a certain pressure to make the inside of the steam box have a certain temperature and humidity, so as to heat and humidify the passing fibers. Fibers with a certain temperature and humidity are convenient for drawing. When the steam in the steam box overflows quickly and the fibers stay in the steam box for a short time, the heating and humidifying effect will be affected, resulting in a decrease in production efficiency. At present, the space between the equipment on the production line is limited, and the steam box cannot be lengthened as much as possible, which is also a waste in terms of cost. At the same time, there is also a certain distance between the steam box and the drawing equipment. During this distance, the fibers are exposed to the external environment and will be affected by the environmental temperature and humidity. Moreover, some products have high requirements for temperature and humidity, and the production efficiency is not high under the existing equipment. To solve the above problems and improve production efficiency, we need to design and install a device on the steam box to slow down the overflow of steam, increase the residence time of the fibers in the steam environment, and reduce the exposure time of the fibers in the external environment. Therefore, a steam box for drawing composite fibers with a baffle device is needed. Summary of the Utility Model
[0003] In view of the above-mentioned disadvantages of the prior art, the purpose of the present utility model is to provide a steam box for drawing composite fibers, which is used to solve the problem of increasing the residence time of fibers in the steam environment in the prior art.
[0004] To achieve the above object and other related objects, the present utility model provides the following technical solutions:
[0005] A steam box for drawing composite fibers includes a steam box body. A steam upper cover and a steam lower cover are arranged inside the steam box body. A fiber corridor is arranged between the steam upper cover and the steam lower cover to provide a drawing space for fiber drawing. The air outlet ends of the steam upper cover and the steam lower cover both face the fiber corridor. Anti-overflow baffles are arranged at the outlet ends of the steam upper cover and the steam lower cover, and the anti-overflow baffles extend out of the steam box body along the outlet direction of the steam upper cover and the steam lower cover.
[0006] By implementing the above technical solution, the fiber corridor arranged between the steam upper cover and the steam lower cover is used to provide a space for heating and humidifying the fibers to be drawn. The air outlet ends of the steam upper cover and the steam lower cover both face the fiber corridor, which can ensure the heating and humidifying effect on the fibers. By arranging anti-overflow baffles at the outlet ends of the steam upper cover and the steam lower cover, the space of the steam environment is extended, and the anti-overflow baffles are used to increase the residence time of the fibers in the steam environment and reduce the exposure time of the fibers in the external environment.
[0007] In an embodiment of the present utility model, the anti-overflow baffle is an L-shaped baffle. The short side end of the anti-overflow baffle is connected to the steam box body, and the bent portion of the anti-overflow baffle is arranged close to the outlet ends of the steam upper cover and the steam lower cover.
[0008] To implement the above technical solution, by making the anti-overflow baffle an L-shaped baffle and connecting the short side end of the anti-overflow baffle to the steam box body, the use stability and reliability of the anti-overflow baffle can be improved. The bent portion of the anti-overflow baffle is arranged close to the outlet ends of the steam upper cover and the steam lower cover, which can ensure the stable output of the steam inside the anti-overflow baffle.
[0009] In an embodiment of the present utility model, wave-shaped flow-attenuating protrusions are arranged on the inner wall of the long side end of the anti-overflow baffle. Moreover, the width dimension of the flow-attenuating protrusions close to the outlet ends of the steam upper cover and the steam lower cover is larger than the width dimension of the fiber corridor.
[0010] To implement the above technical solution, since the anti-overflow baffle is an externally added baffle, the steam body inside it cannot maintain the humidifying and heating effect in the original fiber corridor. In order to better ensure the humidifying and heating effect of the fiber's residence time in the steam environment without extending the size of the anti-overflow baffle, it is necessary to reduce the flow velocity of the steam inside the anti-overflow baffle, so that the fiber can obtain a better humidifying and heating effect. Therefore, wave-shaped flow-attenuating protrusions are arranged on the inner wall of the long side end of the anti-overflow baffle, and the width dimension of the flow-attenuating protrusions close to the outlet ends of the steam upper cover and the steam lower cover is larger than the width dimension of the fiber corridor. On the one hand, the flow-attenuating protrusions are used to increase the formation of steam, and on the other hand, Bernoulli's principle is utilized to reduce the steam flow velocity at the outlet ends of the steam upper cover and the steam lower cover.
[0011] In an embodiment of the present utility model, a reinforcing rod is connected between the short side and the long side of the anti-overflow baffle.
[0012] To implement the above technical solution, in order to improve the use stability of the anti-overflow baffle, a reinforcing rod is connected between its short side and long side to increase the connection strength between the short side and the long side.
[0013] In an embodiment of the present utility model, the anti-overflow baffle is arranged in a trumpet shape, and the open end of the anti-overflow baffle is arranged facing away from the steam box body.
[0014] To implement the above technical solution, by arranging the open end of the trumpet-shaped anti-overflow baffle facing away from the steam box body, the steam flow velocity inside the anti-overflow baffle is reduced, so that the fiber can obtain a better humidifying and heating effect.
[0015] In an embodiment of the present utility model, the anti-overflow baffle is arranged in a trumpet shape, and the open end of the anti-overflow baffle is arranged facing the steam box body.
[0016] To implement the above technical solution, when it is necessary to increase the steam flow rate at the outlet ends of the steam upper cover and the steam lower cover, the open end of the overflow prevention baffle plate with a horn shape can be arranged facing the steam box body.
[0017] As described above, a steam box for composite fiber drafting of the present utility model has the following beneficial effects: by using the fiber corridor arranged between the steam upper cover and the steam lower cover to provide a space for heating and humidifying the fibers to be drafted, and both the air outlet ends of the steam upper cover and the steam lower cover face the fiber corridor, it can ensure the heating and humidifying effect on the fibers. By arranging overflow prevention baffle plates at the outlet ends of both the steam upper cover and the steam lower cover, the space of the steam environment is extended, and the retention time of the fibers in the steam environment is increased by using the overflow prevention baffle plates, and the exposure time of the fibers in the external environment is reduced. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 It shows a schematic structural diagram of the steam box for composite fiber drafting disclosed in the embodiment of the present utility model.
[0019] Figure 2 It shows a schematic structural diagram of the slow flow convex structure of the steam box for composite fiber drafting disclosed in the embodiment of the present utility model.
[0020] Figure 3 It shows a schematic structural diagram of the open-type overflow prevention baffle plate of the steam box for composite fiber drafting disclosed in the embodiment of the present utility model.
[0021] Figure 4 It shows a schematic structural diagram of the overflow prevention baffle plate at high flow rate of the steam box for composite fiber drafting disclosed in the embodiment of the present utility model.
[0022] Description of Component Symbols
[0023] 1. Steam box body; 2. Steam upper cover; 3. Steam lower cover; 4. Fiber corridor; 5. Overflow prevention baffle plate; 6. Slow flow convex; 7. Reinforcing rod; 8. Fiber. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0024] The following specific embodiments illustrate the implementation manners of the present utility model. Those skilled in the art can easily understand other advantages and effects of the present utility model from the content disclosed in this specification. It should be noted that, without conflict, the following embodiments and the features in the embodiments can be combined with each other. Specific Embodiment 1:
[0026] Please refer to Figure 1 and Figure 2As shown in the figure, the utility model provides a steam box for compound fiber drafting, which includes a steam box body. A steam upper cover and a steam lower cover are arranged inside the steam box body. A fiber corridor is arranged between the steam upper cover and the steam lower cover to provide a drafting space for fiber drafting. The air outlet ends of the steam upper cover and the steam lower cover both face the fiber corridor. Anti-overflow baffles are arranged at the outlet ends of the steam upper cover and the steam lower cover, and the anti-overflow baffles extend out of the steam box body along the outlet direction of the steam upper cover and the steam lower cover.
[0027] By using the fiber corridor arranged between the steam upper cover and the steam lower cover, a space for heating and humidifying the fibers to be drafted is provided. The air outlet ends of the steam upper cover and the steam lower cover both face the fiber corridor, which can ensure the heating and humidifying effect on the fibers. By arranging anti-overflow baffles at the outlet ends of the steam upper cover and the steam lower cover, the space of the steam environment is extended. The anti-overflow baffles are used to increase the residence time of the fibers in the steam environment and reduce the exposure time of the fibers in the external environment.
[0028] The anti-overflow baffle is an L-shaped baffle. The short side end of the anti-overflow baffle is connected to the steam box body. The bending part of the anti-overflow baffle is arranged close to the outlet ends of the steam upper cover and the steam lower cover. By making the anti-overflow baffle an L-shaped baffle and connecting the short side end of the anti-overflow baffle to the steam box body, the use stability and reliability of the anti-overflow baffle can be improved. The bending part of the anti-overflow baffle is arranged close to the outlet ends of the steam upper cover and the steam lower cover, which can ensure the stable output of the steam inside the anti-overflow baffle.
[0029] Wave-shaped flow-slowing protrusions are arranged on the inner wall of the long side end of the anti-overflow baffle. And, the width dimension of the flow-slowing protrusions close to the outlet ends of the steam upper cover and the steam lower cover is larger than the width dimension of the fiber corridor. Since the anti-overflow baffle is an externally added baffle, the steam body inside it cannot maintain the humidifying and heating effect in the original fiber corridor. In order to better ensure the humidifying and heating effect of the residence time of the fibers in the steam environment without extending the size of the anti-overflow baffle, it is necessary to reduce the flow velocity of the steam inside the anti-overflow baffle, so that the fibers can obtain a better humidifying and heating effect. Therefore, wave-shaped flow-slowing protrusions are arranged on the inner wall of the long side end of the anti-overflow baffle, and the width dimension of the flow-slowing protrusions close to the outlet ends of the steam upper cover and the steam lower cover is larger than the width dimension of the fiber corridor. On the one hand, the flow-slowing protrusions are used to increase the formation of steam, and on the other hand, the Bernoulli principle is used to reduce the steam flow velocity at the outlet ends of the steam upper cover and the steam lower cover.
[0030] A reinforcing rod is connected between the short side and the long side of the anti-overflow baffle. In order to improve the use stability of the anti-overflow baffle, a reinforcing rod is connected between its short side and long side to improve the connection strength between the short side and the long side. Specific Embodiment 2:
[0032] As Figure 3As shown in the figure, it includes a steam box body. A steam upper cover and a steam lower cover are arranged inside the steam box body. A fiber corridor is arranged between the steam upper cover and the steam lower cover to provide a stretching space for fiber stretching. The air outlet ends of the steam upper cover and the steam lower cover both face the fiber corridor. Anti-overflow baffles are arranged at the outlet ends of the steam upper cover and the steam lower cover. The anti-overflow baffles extend out of the steam box body along the outlet direction of the steam upper cover and the steam lower cover. The anti-overflow baffles are arranged in a horn shape. Moreover, the open end of the anti-overflow baffle faces away from the steam box body. By setting the open end of the horn-shaped anti-overflow baffle facing away from the steam box body, the steam flow rate inside the anti-overflow baffle is reduced, so that the fiber can obtain a better humidifying and heating effect. Specific Embodiment 3:
[0034] As Figure 4 shown in the figure, it includes a steam box body. A steam upper cover and a steam lower cover are arranged inside the steam box body. A fiber corridor is arranged between the steam upper cover and the steam lower cover to provide a stretching space for fiber stretching. The air outlet ends of the steam upper cover and the steam lower cover both face the fiber corridor. Anti-overflow baffles are arranged at the outlet ends of the steam upper cover and the steam lower cover. The anti-overflow baffles extend out of the steam box body along the outlet direction of the steam upper cover and the steam lower cover. The anti-overflow baffles are arranged in a horn shape. And the open end of the anti-overflow baffle faces the steam box body. When it is necessary to increase the steam flow rate at the outlet ends of the steam upper cover and the steam lower cover, the open end of the horn-shaped anti-overflow baffle can be set to face the steam box body.
[0035] The utility model utilizes the fiber corridor arranged between the steam upper cover and the steam lower cover to provide a space for heating and humidifying the fiber to be stretched. The air outlet ends of the steam upper cover and the steam lower cover both face the fiber corridor, which can ensure the heating and humidifying effect on the fiber. By arranging anti-overflow baffles at the outlet ends of the steam upper cover and the steam lower cover, the space of the steam environment is extended, and the anti-overflow baffles are used to increase the residence time of the fiber in the steam environment and reduce the exposure time of the fiber in the external environment.
[0036] The above embodiments only illustrate the principle and its effects of the utility model, rather than limiting the utility model. All equivalent modifications or changes completed by those with ordinary knowledge in the technical field without departing from the spirit and technical idea disclosed by the utility model should still be covered by the claims of the utility model.
Claims
1. A steam box for composite fiber drawing, characterized in that: The invention comprises a steam box body, wherein an upper steam cover and a lower steam cover are arranged in the steam box body, a fiber gallery is arranged between the upper steam cover and the lower steam cover to provide a drafting space for fiber drafting, the air outlet ends of the upper steam cover and the lower steam cover are both oriented toward the fiber gallery, and the outlet ends of the upper steam cover and the lower steam cover are both provided with anti-overflow baffles, and the anti-overflow baffles extend out of the steam box body along the outlet direction of the upper steam cover and the lower steam cover.
2. The steam box for composite fiber drawing according to claim 1, characterized in that: The anti-overflow baffle is an L-shaped baffle, the short side end of the anti-overflow baffle is connected to the steam box body, and the bending part of the anti-overflow baffle is arranged close to the outlet ends of the steam upper cover and the steam lower cover.
3. The steam box for composite fiber drawing according to claim 1, characterized in that: A wave-shaped slow-flow protrusion is arranged on the inner wall of the long side end of the anti-overflow baffle, and the slow-flow protrusion near the outlet end of the steam upper cover and the steam lower cover has a width dimension greater than the fiber gallery width dimension.
4. The steam box for composite fiber drawing according to claim 1, characterized in that: A reinforcement rod is connected between the short side and the long side of the anti-overflow baffle.
5. The steam box for composite fiber drawing according to claim 1, characterized in that: The anti-overflow baffle is arranged in a trumpet shape, and an opening end of the anti-overflow baffle is arranged in a direction away from the steam box body.
6. The steam box for composite fiber drawing according to claim 1, characterized in that: The anti-overflow baffle is arranged in a trumpet shape, and the opening end of the anti-overflow baffle is arranged toward the steam box body.