Yarn processing heating device
By introducing an infrared heating device into the yarn processing heater, the problems of large size and slow response speed of traditional heaters are solved, achieving efficient and precise yarn heating, reducing energy consumption and improving yarn quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- TAIWAN TEXTILE RESEARCH INSTITUTE
- Filing Date
- 2025-07-31
- Publication Date
- 2026-06-09
AI Technical Summary
Existing yarn processing heaters are large and heavy, resulting in slow temperature response, low thermal efficiency, and susceptibility to adverse effects from airflow disturbances or contact with yarn.
An infrared heating device is located above the recess in the housing, working in conjunction with an electric heating rod. The yarn is heated by infrared radiation, reducing heat conduction through the medium, improving temperature control accuracy, and reducing the start-up frequency of the electric heating rod.
It achieves uniform heating of the yarn, improves the accuracy of temperature control, reduces energy consumption, minimizes adverse effects on yarn quality, and allows the use of smaller and lighter heating rods.
Smart Images
Figure CN122169261A_ABST
Abstract
Description
Technical Field
[0001] This disclosure relates to a yarn processing heating device. Background Technology
[0002] Generally speaking, heaters used in false twisting machines are designed with high-power electric heating rods to ensure that the temperature adjustment speed keeps the yarn at a stable temperature required during processing. However, when the temperature drops and timely heating is needed, there are still cases of slow response and insufficient temperature fluctuation.
[0003] However, to ensure stable heating, the heater body is large in size and weight, which is not conducive to timely temperature response. The electric heating rod uses the heat generated by electricity to conduct from the inside of the body to the stainless steel shell. However, heat conduction has problems with temperature response time and heating uniformity, resulting in low thermal efficiency. Furthermore, it is easily affected by airflow disturbances or contact with yarn, which can have adverse effects on production quality. Summary of the Invention
[0004] According to some embodiments disclosed herein, a yarn processing heating device includes a housing, a heating rod, an outer cover, and an infrared heating device. The top surface of the housing has a groove configured for yarn to pass through. The heating rod is located within the housing and below the groove. The outer cover is pivotally connected to one side of the housing and configured to cover the housing. The infrared heating device is located within the outer cover and above the groove, configured to emit infrared rays to heat the yarn through thermal radiation. The infrared heating device is activated between two time points corresponding to two adjacent output peak values of the heating rod.
[0005] In some embodiments, the infrared heating device described above is aligned with the groove of the housing.
[0006] In some embodiments, the length direction of the infrared heating device is the same as the length direction of the groove in the housing.
[0007] In some embodiments, the length direction of the infrared heating device is the same as the length direction of the heating rod.
[0008] In some embodiments, the yarn processing heating device further includes a heat-conducting block. The heat-conducting block is located in the housing and contacts the inner side of the housing, configured to conduct heat from the heating rod to the groove to heat the yarn.
[0009] In some embodiments, the yarn processing heating device further includes a reflector. The reflector is located within the outer cover and houses the infrared heating device.
[0010] In some embodiments, the longitudinal direction of the reflector is the same as the longitudinal direction of the groove in the housing.
[0011] In some embodiments, the yarn processing heating device described above also includes insulating cotton. The insulating cotton is located in the outer cover and directly contacts the reflector.
[0012] In some embodiments, the infrared heating device is located between the reflector and the housing in a groove.
[0013] In some embodiments, the power of the infrared heating device is less than that of the heating rod, and the infrared radiation emitted by the infrared heating device is near-infrared radiation.
[0014] In the above-disclosed embodiment, since the yarn processing heating device has an infrared heating device located in the outer cover and above the groove of the housing, the infrared heating device can emit infrared rays when the yarn passes through the groove, causing the yarn to be heated by thermal radiation, thus uniformly and comprehensively heating the yarn. Furthermore, the infrared heating device not only shares the heat energy of the heating rod, but also, within the temperature fluctuation range of the heating rod, can directly heat the yarn with extremely high thermal efficiency without the need for a medium, avoiding airflow disturbances or contact with the yarn that could adversely affect production quality, resulting in more precise temperature control. Since the infrared heating device can be activated between two time points corresponding to two adjacent output peaks of the heating rod, the activation frequency of high-power heating rods can be reduced, achieving energy savings. Alternatively, by configuring the infrared heating device, the yarn processing heating device can use heating rods with smaller volume and weight, facilitating installation on a false twisting machine. Attached Figure Description
[0015] When accompanied by Figure 1 When reading this document, the best understanding of its contents can be obtained from the embodiments described below. Note that, according to standard industry practice, the various features are not drawn to scale. In fact, the dimensions of the various features can be increased or decreased arbitrarily for clarity of explanation.
[0016] Figure 1 A cross-sectional view of the yarn processing heating apparatus according to an embodiment of the present disclosure is shown with the outer cover open;
[0017] Figure 2 Draw Figure 1 A cross-sectional view of the yarn processing heating device with the outer cover closed;
[0018] Figure 3 Draw Figure 2 The power versus time relationship of the electric heating rod and the infrared heating device;
[0019] Figure 4 Draw Figure 3 The relationship between the power superposition of the electric heating rod and the infrared heating device and time.
[0020] Figure 5 Draw Figure 4 The power superposition curve of the electric heating rod and the infrared heating device is compared with the power curve of the traditional yarn processing heater.
[0021] Figures 6 to 8 Draw Figure 2 A schematic diagram of a yarn processing heating device installed on a false twisting machine.
[0022] [Symbol Explanation]
[0023] 100: Yarn processing heating device
[0024] 110: Shell
[0025] 112: Groove
[0026] 120: Electric heating rod
[0027] 130: Outer Cover
[0028] 140: Infrared heating device
[0029] 150: Thermally conductive block
[0030] 160: Reflector
[0031] 170: Thermal Insulation Cotton
[0032] 200: False twisting machine
[0033] 201: Cooling plate
[0034] 202: Yarn tube
[0035] 204: Transmission rod
[0036] 206: Roller
[0037] 208: Twist Unit
[0038] A1: Branch Area
[0039] A2: Diagonal area
[0040] D1, D2: Length direction
[0041] L: Infrared
[0042] L1, L2, L3, L4: Lines
[0043] P1, P2: Output peak values
[0044] x, y, z: Direction
[0045] Y: Yarn Detailed Implementation
[0046] The following description of embodiments provides many different implementations, or examples, for carrying out various features of the provided object. Specific examples of elements and arrangements are described below to simplify the subject matter. Of course, these examples are merely illustrative and are not intended to be limiting. Furthermore, element symbols and / or letters may be repeated in various examples. This repetition is for simplicity and clarity and does not in itself specify the relationship between the various embodiments and / or configurations discussed.
[0047] Spatial relative terms such as “below,” “under,” “lower,” “above,” and “upper” are used herein for descriptive purposes to describe the relationship between one element or feature and another, as shown in the accompanying drawings. Spatial relative terms are intended to cover different orientations of the apparatus in use or operation other than those shown in the accompanying drawings. The apparatus may be oriented in other ways (rotated 90 degrees or otherwise), and the spatial relative descriptors used herein shall be interpreted accordingly.
[0048] Figure 1 A cross-sectional view is shown of the yarn processing heating device 100 according to an embodiment of the present disclosure when the outer cover 130 is open. Figure 2 Draw Figure 1 A cross-sectional view of the yarn processing heating device 100 with its outer cover 130 closed. See also... Figure 1 and Figure 2 The yarn processing heating device 100 includes a housing 110, a heating rod 120, an outer cover 130, and an infrared heating device 140. The top surface of the housing 110 has a groove 112 through which yarn Y can pass. In use, the yarn Y can move along the bottom of the groove 112 and pass through the yarn processing heating device 100. The heating rod 120 is located within the housing 110 and below the groove 112. The outer cover 130 is pivotally connected to one side of the housing 110 and is configured to cover the housing 110.
[0049] An infrared heating device 140 is located within the outer cover 130 and above the recess 112 of the housing 110. When the outer cover 130 is closed, the infrared heating device 140 emits infrared radiation L to the yarn Y in the recess 112, heating the yarn Y through thermal radiation. The power of the infrared heating device 140 is less than that of the heating rod 120, and the infrared radiation L emitted by the infrared heating device 140 can be near-infrared. For example, the wavelength of the infrared radiation L can be less than 2000 nm (i.e., 2 μm), and based on the absorption spectrum of the object, the yarn Y used in the false twisting machine is suitable for short-wave infrared characteristics. The infrared heating device 140 can be an infrared lamp.
[0050] Specifically, since the yarn processing heating device 100 has an infrared heating device 140 located in the outer cover 130 and above the groove 112 of the housing 110, when the yarn Y passes through the groove 112, the infrared heating device 140 can emit infrared rays L to heat the yarn Y through thermal radiation, thereby heating the yarn Y evenly and comprehensively. Furthermore, the infrared heating device 140 not only shares the heat energy of the heating rod 120, but also, within the temperature fluctuation range of the heating rod 120, can directly heat the yarn Y with extremely high thermal efficiency without the need for a medium, avoiding airflow disturbances or contact with the yarn Y that could adversely affect production quality, thus making temperature control more precise.
[0051] In addition, the yarn processing heating device 100 also includes a heat-conducting block 150, a reflector 160, and insulation cotton 170. The heat-conducting block 150 is located in the housing 110 and contacts the inner side of the housing 110. The heat-conducting block 150 can conduct heat from the heating rod 120 to the groove 112 of the housing 110 to heat the yarn Y. Through the configuration of the heat-conducting block 150, the heating rod 120 can heat the yarn Y in the groove 112 by heat conduction. The reflector 160 is located in the outer cover 130 and houses the infrared heating device 140. The insulation cotton 170 is located in the outer cover 130 and directly contacts the reflector 160 to maintain a stable temperature. The infrared heating device 140 is located between the reflector 160 and the groove 112 of the housing 110.
[0052] In some embodiments, when the outer cover 130 is closed, the infrared heating device 140 aligns with the groove 112 of the housing 110. Furthermore, the length direction of the infrared heating device 140, the length direction of the groove 112 of the housing 110, the length direction of the heating rod 120, and the length direction of the reflector 160 are all the same, for example, direction z.
[0053] It should be understood that the component connections, materials, and functions already described will not be repeated, but will be stated in the preceding text. The following description will explain the operating mechanism of the yarn processing heating device 100 when heating yarn Y.
[0054] Figure 3 Draw Figure 2 The graph shows the power versus time relationship between the electric heating rod 120 and the infrared heating device 140. See also... Figure 2 and Figure 3Line L1 represents the power variation of the heating rod 120 over time, and line L2 represents the power variation of the infrared heating device 140 over time. The start-up period of the infrared heating device 140 is between two time points corresponding to two adjacent output peaks P1 and P2 of the heating rod 120. In this embodiment, the set temperature of the yarn processing heating device 100 is 180°C, the temperature control range is ±2°C, the power of the heating rod 120 is 7kW / section, the power of the infrared heating device 140 is 2kW / section, the winding speed of yarn Y is 600m / min, and the specification of yarn Y is 125d / 72f partially oriented yarn (POY). Furthermore, the heating rod 120 has approximately one output peak (e.g., output peaks P1 and P2) every 10 minutes.
[0055] Figure 4 Draw Figure 3 The graph shows the relationship between the superimposed power of the electric heating rod and the infrared heating device and time. In other words, Figure 4 Line L3 is Figure 3 The power change over time after lines L1 and L2 are superimposed.
[0056] Figure 5 Draw Figure 4 The power superposition curve of the electric heating rod and the infrared heating device is compared with the power curve of a traditional yarn processing heater. See also... Figure 2 and Figure 5 Line L3 represents the power variation over time after the power of the electric heating rod 120 and the infrared heating device 140 of the yarn processing heating device 100 are superimposed. Line L4 represents the power variation over time of a conventional yarn processing heater that only has an electric heating rod. Since the conventional yarn processing heater only has an electric heating rod to maintain the temperature, there is an output peak approximately every five minutes. As a result, dotted area A1 represents the energy saving of the yarn processing heating device 100 compared to the conventional yarn processing heater, and diagonal area A2 represents the energy consumption of the yarn processing heating device 100 compared to the conventional yarn processing heater. After offsetting calculations, the energy saving effect is approximately 10%.
[0057] Because the infrared heating device 140 can achieve two adjacent output peaks P1 and P2 (see) during the start-up period of the heating rod 120 Figure 3 Between the two corresponding time points, the starting frequency of the high-power electric heating rod 120 can be reduced, thereby saving energy. Alternatively, by configuring the infrared heating device 140, the yarn processing heating device 100 can use a smaller and lighter electric heating rod 120, which is convenient for installation on the false twisting machine.
[0058] Figures 6 to 8 Draw Figure 2 A schematic diagram of the yarn processing heating device 100 installed on the false twisting machine 200. Figure 6 and Figure 7 Different types of false twisting machines 200 can be used, but all of them can use the aforementioned yarn processing heating device 100. Figure 8 The false twisting machine 200 includes a yarn processing heating device 100, a cooling plate 201, a yarn bobbin 202, a transmission rod 204, rollers 206, and a twisting unit 208. The transmission rod 204 and rollers 206 transmit yarn Y, the twisting unit 208 twists the yarn, and the yarn bobbin 202 supplies the yarn. The yarn processing heating device 100 can utilize an infrared heating device 140 and an electric heating rod 120 (see...). Figure 2 Heat yarn Y. (For clarity of the attached diagram,...) Figure 8 The yarn processing heating device 100 is omitted. Figure 2 The internal components are only shown with yarn Y passing through; it should be understood that... Figure 8 The yarn Y in the yarn processing heating device 100 is located Figure 2 In the groove 112, and the length direction D1 (or length direction D2) can be regarded as Figure 2 The direction z.
[0059] In summary, the yarn processing heating device incorporates an infrared heating element within an insulated outer cover for direct yarn heating. This infrared heating element boasts low power consumption and the highest heating efficiency, directly and immediately raising the yarn temperature. Therefore, it solves the problems of high starting power and poor temperature response speed associated with traditional yarn processing heaters. Infrared heating eliminates the need for a medium, directly heating the yarn, and since infrared radiation does not heat the air, its thermal efficiency is extremely high. Furthermore, due to the non-contact energy transfer, it does not negatively impact yarn quality. Moreover, the yarn processing heating device eliminates the need for direct contact in traditional yarn processing heaters, which can lead to poor quality due to contact pressure and abrasion. Additionally, the device reduces the total heat transfer required by traditional yarn processing heaters (e.g., it can save 73 kWh / ton in false twist processing plants) and decreases temperature fluctuations, thus improving yarn quality.
[0060] The foregoing outlines the features of several embodiments to enable those skilled in the art to better understand the nature of this disclosure. Those skilled in the art should understand that they can readily use this disclosure as the basis for designing or modifying other processes and structures to achieve the same purposes and / or advantages as the embodiments described herein. Those skilled in the art should also recognize that such equivalent constructions do not depart from the spirit and scope of this disclosure, and that various changes, substitutions, and alterations can be made to them without departing from the spirit and scope of this disclosure.
Claims
1. A yarn processing heating device, characterized in that, include: A housing having a groove on its top surface, wherein the groove is configured to allow a yarn to pass through; An electric heating rod is located inside the housing and below the recess; An outer cover, pivotally connected to one side of the housing and configured to cover the housing; and An infrared heating device is located in the outer cover and above the groove, configured to emit an infrared ray to the yarn so that the yarn is heated by thermal radiation, wherein the activation period of the infrared heating device is between two time points corresponding to two adjacent output peaks of the heating rod.
2. The yarn processing heating device as described in claim 1, characterized in that, The infrared heating device is aligned with the groove in the housing.
3. The yarn processing heating device as described in claim 1, characterized in that, The length direction of the infrared heating device is the same as the length direction of the groove in the housing.
4. The yarn processing heating device as described in claim 1, characterized in that, The length direction of the infrared heating device is the same as the length direction of the heating rod.
5. The yarn processing heating device as described in claim 1, characterized in that, Also includes: A heat-conducting block is located in the housing and in contact with the inside of the housing, configured to conduct heat from the heating rod to the groove to heat the yarn.
6. The yarn processing heating device as described in claim 1, characterized in that, Also includes: A reflector is located within the outer cover and houses the infrared heating device.
7. The yarn processing heating device as described in claim 6, characterized in that, The length direction of the reflector is the same as the length direction of the groove in the housing.
8. The yarn processing heating device as described in claim 6, characterized in that, Also includes: An insulating cotton is located in the outer cover and is in direct contact with the reflector.
9. The yarn processing heating device as described in claim 6, characterized in that, The infrared heating device is located between the reflector and the recess in the housing.
10. The yarn processing heating device as described in claim 1, characterized in that, The power of the infrared heating device is less than that of the electric heating rod, and the infrared radiation emitted by the infrared heating device is near-infrared radiation.