Tow water bath drafting system
By installing auxiliary pipes and circulation components at the outlet of the water bath, the problem of uneven heating of the fiber bundle was solved, achieving uniform fiber performance and production stability, and reducing the risk of fiber breakage.
Patent Information
- Application Number
- CN202511704519.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-20
- Publication Date
- 2026-01-20
AI Technical Summary
In existing technologies, uneven heating of the fiber bundles in the water bath leads to uneven fiber properties and breakage problems.
An auxiliary pipe is installed at the outlet of the water bath. The hot water temperature in the auxiliary pipe is higher than that in the water bath, which prolongs the heating time of the filament bundle. The temperature is kept stable by the circulation component. The temperature and liquid level are monitored by the temperature control module and the liquid level module to prevent abnormalities and impurity deposition.
It effectively reduces the probability of uneven heating of the fiber bundle, ensures uniform fiber performance, reduces breakage, and improves production stability and quality.
Smart Images
Figure CN121363049A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of tow stretching, in particular to a tow water bath stretching system. BACKGROUND
[0002] The hot water (the temperature is usually 70-80 DEG C) in the water bath stretching tank can quickly heat the tow, and ensure that each single yarn in the whole tow can be stretched under the condition of almost the same temperature and tension, which is crucial for obtaining the product fiber with uniform fineness, strength and other indexes. The length of the tow contacting with the hot water also determines whether the heat exchange is sufficient. If the immersion length is too short, the tow will be unevenly heated, and if the heating is uneven, the fiber performance will be uneven, and even the end will be broken. SUMMARY
[0003] In view of the deficiencies of the prior art, one of the purposes of the present application is to provide a tow water bath stretching system which has the advantage of reducing the probability of uneven heating of the tow.
[0004] The above purpose of the present application is realized by the following technical scheme: A tow water bath stretching system, comprising a water bath tank, a stretching roller one is arranged at the inlet end of the water bath tank, a stretching roller two is arranged at the outlet end of the water bath tank, the rotating speed of the stretching roller two is greater than that of the stretching roller one, and an auxiliary pipe is further arranged at the outlet of the water bath tank, one end of the auxiliary pipe facing the water bath tank is provided with a perforation for the tow to pass through, the tow does not contact with the hole wall of the perforation, the auxiliary pipe is used for containing hot water, and the hot water in the auxiliary pipe can flow into the water bath tank.
[0005] By adopting the above technical scheme, in production, since there is hot water in the water bath tank and hot water in the auxiliary pipe, the time of heating the tow can be prolonged, and the probability of uneven heating of the tow is reduced.
[0006] In a preferred example, the present application can be further configured that a guide roller is arranged in the water bath tank, and is used for immersing the tow in the water bath tank.
[0007] By adopting the above technical scheme, the existence of the guide roller can guide the tow, so that the soaking effect of the tow is better.
[0008] In a preferred example, the present application can be further configured that the temperature of the hot water in the auxiliary pipe is greater than that of the hot water in the water bath tank.
[0009] By adopting the above technical scheme, that is, in production, after the tow passes through the water bath tank, it will enter into the auxiliary pipe, and since the water temperature in the auxiliary pipe is greater than that in the water bath tank, the temperature of the tow is more stable.
[0010] The application can be further configured in a preferred example as follows: further comprising a circulating assembly, which is connected to the lower end of the water bath tank and extracts water in the water bath tank for heating and then conveying into the auxiliary pipe.
[0011] By adopting the above technical scheme, the presence of the circulating assembly enables the temperature in the auxiliary pipe and the water bath tank to be kept stable all the time, which is beneficial to production.
[0012] The application can be further configured in a preferred example as follows: further comprising a temperature control module and a temperature measurement module, the temperature measurement module is used to detect the temperature Tf of hot water in the auxiliary pipe and the temperature Ts of hot water in the water bath tank, the temperature control module acquires Tf and Ts and judges, if Tf meets the standard and the difference between the two meets the standard, it indicates that the operation is normal, otherwise, temperature abnormality alarm is performed.
[0013] By adopting the above technical scheme, the temperature of the water in the auxiliary pipe and the water bath tank is detected, so as to reduce the probability of temperature abnormality.
[0014] The application can be further configured in a preferred example as follows: the auxiliary pipe is provided with a liquid level module, the liquid level module is used to detect the liquid level height in the auxiliary pipe, if the liquid level height in the auxiliary pipe is greater than the preset value, cleaning notification is performed.
[0015] By adopting the above technical scheme, the presence of the liquid level module enables the liquid level in the auxiliary pipe to be monitored in time, so as to maintain good heat conduction effect on the filament bundle.
[0016] The application can be further configured in a preferred example as follows: the auxiliary pipe is provided with a containing groove, the distance between the lowest end of the containing groove and the ground is less than the distance between the lowest end of the perforation and the ground, a cleaning valve is arranged at the lowest end of the containing groove, when the liquid level module performs cleaning notification, the amount of liquid entering the auxiliary pipe per unit time is increased, the cleaning valve is turned on and the duration A is continued.
[0017] By adopting the above technical scheme, the distance between the lowest end of the containing groove and the ground is less than the distance between the lowest end of the perforation and the ground, so when the impurities in the water exist sedimentation, they will probably gather at the lowest end of the containing groove, by discharging the liquid in the containing groove, the purpose of discharging the impurities in the containing groove can be achieved.
[0018] The application can be further configured in a preferred example as follows: after time A, the cleaning valve is closed, and the water level in the auxiliary pipe is acquired after time B, if it is not greater than the preset value, the amount of liquid entering the auxiliary pipe per unit time is restored.
[0019] By adopting the above technical scheme, it indicates that the liquid in the auxiliary pipe can be smoothly discharged to the water bath tank through the perforation.
[0020] The application can be further configured in a preferred example that if greater than the preset value, the filaments on the second drawing roller are detected periodically, if the production standard is not met, the filaments are marked, and if the first detection of the filaments on the second drawing roller meets the standard, the opening of the cleaning valve is adjusted to balance the amount of liquid entering and discharging from the auxiliary pipe per unit time.
[0021] By adopting the above technical scheme, when the liquid discharging effect is poor due to the blockage of the perforation in use, the filaments are detected, if the standard is met, the opening of the cleaning valve is adjusted to balance the amount of liquid entering the auxiliary pipe, and the filaments are periodically detected, so that good control effect can be achieved on the filaments. BRIEF DESCRIPTION OF DRAWINGS
[0022] Figure 1 is a structural schematic diagram of the application.
[0023] Figure 2 is a sectional structural schematic diagram of the auxiliary pipe of the application.
[0024] Reference signs: 11, first drawing roller; 12, second drawing roller; 2, water bath tank; 21, guide roller; 3, auxiliary pipe; 31, bottom plate; 32, perforation; 33, cleaning valve. DETAILED DESCRIPTION
[0025] The application will be further described in detail below with reference to the accompanying drawings.
[0026] Reference Figure 1 and Figure 2 , a water bath drawing system for filaments disclosed by the application, comprising a water bath tank 2, the inlet end of the water bath tank 2 is provided with a first drawing roller 11, the outlet end of the water bath tank 2 is provided with a second drawing roller 12, the rotating speed of the second drawing roller 12 is greater than that of the first drawing roller 11, the outlet of the water bath tank 2 is further provided with an auxiliary pipe 3, which can be one or multiple, the auxiliary pipe 3 is located between the second drawing roller 12 and the water bath tank 2, the end of the auxiliary pipe 3 facing the water bath tank 2 is provided with a perforation 32 for the filaments to pass through, the filaments do not contact the hole wall of the perforation 32, the auxiliary pipe 3 is used to contain hot water, and the hot water in the auxiliary pipe 3 can flow into the water bath tank 2. The end of the auxiliary pipe 3 with the perforation 32 extends into the water bath tank 2, and the water temperature in the auxiliary pipe 3 is greater than that in the water bath tank 2. The auxiliary pipe 3 is inclinedly arranged, the small end of the bottom plate 31 faces the end of the auxiliary pipe 3 away from the water bath tank 2, the bottom plate 31 and the pipe wall of the auxiliary pipe 3 form a containing groove, the distance between the lowest end of the containing groove and the ground is less than that between the lowest end of the perforation 32 and the ground, the lowest end of the containing groove is provided with a cleaning valve 33, and the cleaning valve 33 is connected to the outside through a pipeline.
[0027] The auxiliary tube 3 includes a base plate 31, which is frustum-shaped and fixedly installed at one end of the auxiliary tube 3 near the water bath 2. A through hole 32 is provided on the base plate 31 and is concentric with the auxiliary tube 3. A guide roller 21 is provided in the water bath 2. The filaments pass under the guide roller 21 and are immersed in the water bath 2 under the action of the guide roller 21.
[0028] The water bath 2 is also equipped with a circulation assembly, which includes a circulation pipe and a heating element. One end of the circulation pipe is connected to the bottom of the water bath 2, and the other end is connected to the top of the auxiliary pipe 3. A water pump is also installed on the circulation pipe. The water pump draws the liquid from the bottom of the water bath 2 to the top of the auxiliary pipe 3 and injects it into the auxiliary pipe 3. The heating element is used to heat the liquid in the circulation pipe. The heating element can be electric heating, steam heating, or other heating methods.
[0029] It also includes a liquid level control module, a temperature module, and a temperature measurement module. The temperature measurement module is used to detect the temperature Tf of the hot water in the auxiliary pipe 3 and the temperature Ts of the hot water in the water bath 2. The temperature control module acquires Tf and Ts and makes a judgment. If Tf meets the standard and the difference between the two meets the standard, it indicates that the operation is normal. Otherwise, a temperature abnormality alarm is triggered.
[0030] The liquid level module is used to detect the liquid level in auxiliary pipe 3. If the liquid level in auxiliary pipe 3 is greater than a preset value, a cleaning notification is issued. When the liquid level module issues a cleaning notification, the amount of liquid entering auxiliary pipe 3 per unit time is increased, and cleaning valve 33 is opened for a duration of A. After time A, cleaning valve 33 is closed, and the water level in auxiliary pipe 3 is measured after time B. If it is not greater than the preset value, the amount of liquid entering auxiliary pipe 3 per unit time is restored.
[0031] If the value is greater than the preset value, the filament bundle on the second drafting roller 12 is periodically inspected. If it does not meet the production standard, the filament bundle is marked. If the filament bundle on the second drafting roller 12 meets the standard when it is inspected for the first time, the opening of the cleaning valve 33 is adjusted so that the amount of liquid entering the auxiliary pipe 3 and exiting the auxiliary pipe 3 is balanced per unit time.
[0032] The implementation principle of this embodiment is as follows: In production, the filament bundle passes through the first stretching roller 11 and enters the water bath 2. In the water bath 2, it passes through the guide roller 21 in sequence. After passing through the guide roller 21, it enters the auxiliary tube 3 through the perforation 32 and exits from the auxiliary tube 3 to the second stretching roller 12. During this process, the filament bundle is heated more evenly.
[0033] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.
Claims
1. A water bath drafting system for a tow, characterized by: The device comprises a water bath, an inlet end of the water bath is provided with a drafting roller one, an outlet end of the water bath is provided with a drafting roller two, the rotating speed of the drafting roller two is greater than that of the drafting roller one, an auxiliary pipe is further provided at the outlet of the water bath, one end of the auxiliary pipe towards the water bath is provided with a perforation for the passage of the filament, the filament does not contact the hole wall of the perforation, the auxiliary pipe is used for containing hot water, and the hot water in the auxiliary pipe can flow into the water bath.
2. A water bath drafting system for a tow according to claim 1 wherein: A guide roller is arranged in the water bath for submerging the filament in the water bath.
3. A water bath drafting system for a tow according to claim 2, wherein: The temperature of the hot water in the auxiliary pipe is greater than that of the hot water in the water bath.
4. A water bath drafting system for a tow according to claim 3 wherein: A circulating assembly is further included, which is connected with the lower end of the water bath and is used for extracting the water in the water bath, heating and then conveying the water into the auxiliary pipe.
5. A water bath drafting system for a tow according to claim 4 wherein: A temperature control module and a temperature measuring module are further included, the temperature measuring module is used for detecting the temperature Tf of the hot water in the auxiliary pipe and the temperature Ts of the hot water in the water bath, the temperature control module acquires Tf and Ts and judges, if Tf meets the standard and the difference between Tf and Ts meets the standard, it indicates that the operation is normal, otherwise, temperature abnormality alarm is performed.
6. A hydro-bath drafting system for a tow according to claim 1, wherein: A liquid level module is arranged in the auxiliary pipe, which is used for detecting the liquid level height in the auxiliary pipe, if the liquid level height in the auxiliary pipe is greater than a preset value, cleaning notification is performed.
7. A water bath drafting system for a tow according to claim 6 wherein: An accommodating groove is arranged in the auxiliary pipe, the distance between the lowest end of the accommodating groove and the ground is less than that between the lowest end of the perforation and the ground, a cleaning valve is arranged at the lowest end of the accommodating groove, when the liquid level module performs cleaning notification, the liquid amount entering the auxiliary pipe per unit time is increased, the cleaning valve is turned on and the on duration is A.
8. A water bath drafting system for a tow according to claim 7, wherein: After time A, the cleaning valve is closed, and the water level in the auxiliary pipe is acquired after time B, if it is not greater than a preset value, the liquid amount entering the auxiliary pipe per unit time is restored.
9. A hydro-bath drafting system for a tow according to claim 7, wherein: If it is greater than the preset value, the filament on the drafting roller two is periodically detected, if it does not meet the production standard, the filament is marked, if the filament on the drafting roller two is detected for the first time and meets the standard, the opening of the cleaning valve is adjusted, so that the liquid amount entering and discharging from the auxiliary pipe per unit time is balanced.