A quartz rod sintering forming size monitoring device and system
Patent Information
- Application Number
- CN202522102668.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-29
- Publication Date
- 2026-09-11
- Estimated Expiration
- 2035-09-29
AI Technical Summary
[0003]目前，石英棒烧结的环境是一个高温密闭环境，导致操作人员难以监测到生产过程中石英棒长度和直径的实时变化，只能够在石英棒生产结束后，利用卡尺、卷尺或者其他测绘仪器进行测量，当棒长或直径与目标尺寸差距多大或者某些部位没有烧透明时，只能依靠技术人员的经验进行反向推测，不仅测量效率低，而且测量准确性难以保证
本实用新型的芯轴通过安装部安装石英棒，驱动件通过芯轴和安装部带动石英棒转动，激光传感器检测其与石英棒之间的距离变化，进而能够准确测量石英棒的实时长度，并且操作人员可以测量石英棒的质量m，并采集定速旋转时电机的动态扭矩变化ΔT和角加速度α，根据公式ΔT=J·α，能够测量出石英棒的动态转动惯量J，随后根据公式J=mr2/2，可以测算出石英棒烧结过程中的半径r，使操作人员能够实时掌握石英棒的半径和长度变化，避免石英棒出现异常形变而造成设备损坏。
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Figure CN224744097U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of quartz rod sintering technology, and in particular to a device and system for monitoring the sintering dimensions of quartz rods. Background Technology
[0002] Quartz rod sintering equipment is used to heat quartz rods at high temperatures, transforming them into a transparent crystalline state. During normal sintering, the length of the quartz rod typically shrinks, meaning its outer diameter and length decrease. If the sintering temperature is too high or the processing time at a certain stage is too long, the quartz rod will become elongated. Conversely, if the temperature is too low or the processing time at a certain stage is too short, the quartz rod may not sinter into a transparent state. Therefore, real-time monitoring of the quartz rod's condition during sintering ensures successful sintering.
[0003] Currently, the sintering environment for quartz rods is a high-temperature, enclosed environment, making it difficult for operators to monitor the real-time changes in the length and diameter of the quartz rods during production. Measurements can only be taken after the quartz rods have been produced, using calipers, measuring tapes, or other measuring instruments. When the rod length or diameter differs significantly from the target size, or when certain parts are not sintered through, the operators can only rely on the experience of technicians to make a reverse estimation, which is not only inefficient but also makes it difficult to guarantee the accuracy of the measurements. Utility Model Content
[0004] In order to overcome the shortcomings mentioned in the background art, this application provides a quartz rod sintering molding size monitoring device and system.
[0005] A quartz rod sintering forming size monitoring device includes an installation assembly and a laser sensor. The installation assembly is rotatably equipped with a mandrel, which is connected to a drive component. The mandrel is provided with a mounting part for mounting the quartz rod. The axis of the mandrel is parallel to or coincides with the axis of the quartz rod. The quartz rod is located between the mandrel and the laser sensor, and the detection end of the laser sensor is oriented towards the quartz rod.
[0006] In one embodiment, the mounting assembly includes a mounting base and a kit. The kit is sleeved on the mandrel and rotatably connected to the mandrel. The kit is provided with a limiting part to prevent relative axial displacement between the kit and the mandrel. A weighing sensor is fixedly mounted on the mounting base, and the kit is disposed on the sensor.
[0007] In one embodiment, the sensing device and the kit are connected by an adjusting bolt, one end of which is rotatably connected to the sensing end of the sensing device, and the adjusting bolt is threadedly connected to the kit.
[0008] As one embodiment, a guide shaft for guiding the kit is provided between the mounting base and the kit.
[0009] In one embodiment, the axis of the mandrel, the axis of the quartz rod, and the axis of the laser sensor coincide.
[0010] A quartz rod sintering and forming size monitoring system includes a heating furnace, an installation assembly mounted on the heating furnace, a quartz rod located inside the heating furnace, a laser sensor located outside the heating furnace, and an observation hole provided on the heating furnace for directing the laser from the laser sensor toward the quartz rod.
[0011] In one embodiment, the axis of the quartz rod coincides with the axis of the heating furnace.
[0012] In one embodiment, the heating furnace includes a lower furnace body, and the observation hole is disposed on the lower furnace body. The axis of the observation hole coincides with the axis of the laser sensor. A transparent plate is disposed inside the observation hole, and a sealing ring for sealing the observation hole is disposed on the transparent plate.
[0013] As one embodiment, the lower furnace body is provided with heat insulation material to reduce heat radiation.
[0014] As one embodiment, the lower furnace body is provided with cooling water channels.
[0015] The beneficial effects of this application are: In this invention, a mandrel mounts a quartz rod via a mounting part. A drive unit rotates the quartz rod through the mandrel and mounting part. A laser sensor detects the change in distance between the mandrel and the quartz rod, thus accurately measuring the real-time length of the quartz rod. The operator can also measure the mass m of the quartz rod and collect the dynamic torque change ΔT and angular acceleration α of the motor during constant-speed rotation. Using the formula ΔT=J·α, the dynamic moment of inertia J of the quartz rod can be measured. Subsequently, using the formula J=mr... 2 / 2 can be used to calculate the radius r of the quartz rod during the sintering process, allowing operators to monitor the changes in the radius and length of the quartz rod in real time and avoid abnormal deformation of the quartz rod that could damage the equipment.
[0016] Other technical solutions of this utility model can also achieve the following technical effects: By installing a sensor on the mounting base, the kit is fitted onto the mandrel, and the kit and mandrel are rotated together. This allows the sensor to detect the sum of the masses of the kit, mandrel, and quartz rod. Given the masses of the kit and mandrel, the mass of the quartz rod can be easily calculated, thus saving the step of weighing the quartz rod before sintering and improving work efficiency.
[0017] By setting an adjusting bolt between the sensing device and the kit, with one end of the adjusting bolt rotatably connected to the sensing end of the sensing device and the adjusting bolt threadedly connected to the kit, the kit can be moved along the axis of the adjusting bolt when the adjusting bolt is rotated, thereby adjusting the position of the kit, the mandrel and the quartz rod.
[0018] By setting up a heating furnace, with the quartz rod located inside, and installing the mounting components on the furnace, the laser sensor can measure the distance between the quartz rod and the laser sensor in real time during the sintering process. This helps operators monitor the length changes of the quartz rod in real time, reducing the risk of accidents caused by excessive length changes of the quartz rod. Attached Figure Description
[0019] Figure 1 This is a schematic diagram showing the positional relationship of the mandrel and drive components in an embodiment of this utility model; Figure 2 This is a schematic diagram showing the positional relationship of the kit and sensing device and other parts in an embodiment of this utility model; Figure 3 This is a schematic diagram showing the positional relationship between the kit and the guide shaft in an embodiment of this utility model; Figure 4 This is a three-dimensional structural cross-sectional view of the mandrel and kit components in the embodiments of this utility model; Figure 5 This is a schematic diagram showing the positional relationship of parts such as adjusting bolts and sensing devices in an embodiment of this utility model; Figure 6 This is a schematic diagram showing the positional relationship between the heating furnace and the laser sensor in an embodiment of this utility model; Figure 7 This is a bottom view of the lower furnace body in an embodiment of the present invention; Figure 8 This is a three-dimensional cross-sectional view of the lower furnace body in an embodiment of the present invention; Figure 9 This is a three-dimensional structural diagram of the lower furnace body in an embodiment of this utility model; Figure 10 This is a schematic diagram showing the positional relationship of components such as the transparent plate and the heat insulation material in an embodiment of this utility model.
[0020] In the attached drawings, the following are the reference numerals: 1. Mounting assembly; 101. Mounting base; 102. Kit; 103. Adjusting bolt; 104. Guide shaft; 2. Laser sensor; 3. Mandrel; 4. Drive component; 5. Sensing device; 6. Heating furnace; 601. Lower furnace body; 602. Transparent plate; 603. Sealing ring; 604. Thermal insulation material; 605. Cooling water channel. Detailed Implementation
[0021] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments.
[0022] A device for monitoring the dimensional changes of sintered quartz rods, such as Figures 1-4 and Figure 6 As shown, the device includes a mounting assembly 1 and a laser sensor 2. The mounting assembly 1 is rotatably mounted with a spindle 3, which is connected to a drive component 4. The drive component 4 can be mounted on the mounting assembly 1. The drive component 4 includes a motor and two gears. A gear is mounted on the output shaft of the motor and on the spindle 3 respectively. The two gears mesh with each other. When the motor starts, its output shaft drives the spindle 3 to rotate through gear transmission, which in turn drives the quartz rod to rotate. The spindle 3 is provided with a mounting part for mounting the quartz rod. The mounting part can be a clamp or a pin. When the mounting part is a clamp, the clamp holds the end of the quartz rod. The diameter of the two ends of the quartz rod is smaller than that of the middle part. When the quartz rod is heated, the smaller diameter positions at the two ends are not easily deformed. That is, the diameter change at this position hardly affects the clamp's grip on the quartz rod, so that the clamp can always hold the quartz rod tightly when it rotates, preventing the quartz rod from falling off. When the mounting part is a pin, the mandrel 3 has two mounting holes and one shaft hole. The diameter of the shaft hole is the same as the diameter of the end of the quartz rod. The quartz rod has a through hole, and the axis of the mounting hole is perpendicular to the axis of the quartz rod. When fixing the quartz rod, the quartz rod is inserted into the shaft hole along the axis of the mandrel 3, so that the through hole of the quartz rod is aligned with the two mounting holes of the mandrel 3. Then, the pin is inserted, so that the pin passes through the mounting hole and the through hole, through the mandrel 3 and the quartz rod inside. The end of the pin is threaded. After the pin passes through the mandrel 3 and the quartz rod, the nut is tightened on the pin to prevent the quartz rod from swinging. The axis of the mandrel 3 is parallel to or coincides with the axis of the quartz rod, and the quartz rod is located on the mandrel. Between the mandrel 3 and the laser sensor 2, the detection end of the laser sensor 2 is positioned facing the quartz rod. The laser sensor 2 can measure the distance between the quartz rod and the laser sensor 2 in real time. Furthermore, the distance between the axis of the mandrel 3 and the axis of the quartz rod is less than the radius of the quartz rod. Therefore, even when the quartz rod is rotating, the laser emitted by the laser sensor 2 can always irradiate the end face of the quartz rod. Based on the prior measurement of the quartz rod length and the initial distance between the laser sensor 2 and the quartz rod, the laser sensor 2 can calculate the length of the quartz rod in real time during the sintering process. This allows operators to monitor the length change of the quartz rod in real time and avoid accidents caused by excessive elongation of the quartz rod. Before placing the quartz rod on the mounting part of the mandrel 3, the operator can measure the length of the quartz rod and weigh it to obtain its mass m. The operator can also collect the dynamic torque change ΔT and angular acceleration α of the motor during constant-speed rotation. According to the formula ΔT=J·α, the dynamic moment of inertia J of the quartz rod can be measured. Then, according to the formula J=mr... 2 / 2 can be used to calculate the radius r of the quartz rod during the sintering process, and obtain the diameter D1 during the sintering process. Before sintering, the initial diameter D2 of the quartz rod can be measured first. By comparing the diameter D1 during the sintering process with the initial diameter D2 of the quartz rod, the operator can determine whether the quartz rod is in a normal sintering state. If the difference between D1 and D2 is too large, the operator needs to intervene in time and adjust the sintering parameters.
[0023] In one embodiment, such as Figures 2-5 As shown, the mounting assembly 1 includes a mounting base 101 and a kit 102. The kit 102 is fitted onto the mandrel 3 and rotatably connected to the mandrel 3. The kit 102 is provided with a limiting part, which can be a slot on the kit 102. The slot allows the mandrel 3 to rotate while preventing relative displacement between the mandrel 3 and the kit 102 in the axial direction. A weighing sensor 5 is fixedly mounted on the mounting base 101. The sensor 5 is a pressure sensor or a tension sensor. When the sensor 5 is a pressure sensor, the sensing end of the pressure sensor faces upward, and the kit 102 rests on the sensing end face of the pressure sensor due to its own weight. When the sensor 5 is a tension sensor, the sensing end of the tension sensor faces downward, and the kit 102 is mounted on the sensing end face of the tension sensor. The sensor 5 can detect the sum of the masses of the kit 102, the mandrel 3, and the quartz rod. By measuring the masses of the kit 102 and the mandrel 3 in advance, the mass of the quartz rod can be calculated.
[0024] In one embodiment, such as Figure 5 As shown, the sensing device 5 and the kit 102 are connected by an adjusting bolt 103. One end of the adjusting bolt 103 is rotatably set with the sensing end of the sensing device 5. The adjusting bolt 103 is threadedly connected to the kit 102. By rotating the adjusting bolt 103, the kit 102 can move along the axial direction of the adjusting bolt 103, changing the height of the kit 102 and the mandrel 3, thereby adjusting the position of the quartz rod. When adjusting the height of the mandrel 3, the gear on the mandrel 3 can always mesh with the gear on the motor output shaft.
[0025] In one embodiment, such as Figure 3 and Figure 4 As shown, a guide shaft 104 for guiding the kit 102 is provided between the mounting base 101 and the kit 102. Multiple guide shafts 104 can be provided, and the multiple guide shafts 104 are evenly distributed in the circumferential direction around the axis of the kit 102, which can prevent the kit 102 from shifting.
[0026] In one embodiment, the axis of the mandrel 3, the axis of the quartz rod, and the axis of the laser sensor 2 coincide, so that when the mandrel 3 drives the quartz rod to rotate, the quartz rod can always rotate around its own axis, reducing the influence of centrifugal force on the change of the diameter of the quartz rod.
[0027] A quartz rod sintering and forming size monitoring system includes a heating furnace 6 and the quartz rod sintering and forming size monitoring device described in the above specific embodiments, such as... Figures 6-8 As shown, the middle part of the heating furnace 6 is the high-temperature heating zone, and the top and bottom of the heating furnace 6 are low-temperature heating zones. The mounting assembly 1 is installed on the top of the heating furnace 6, and the quartz rod is located inside the heating furnace 6. The mounting assembly 1 can be installed inside or outside the heating furnace 6. When the mounting assembly 1 is installed inside the heating furnace 6, the mounting base 101, the kit 102, the mandrel 3, and the gear set are located inside the heating furnace 6, while the motor can be located outside the heating furnace 6. The output shaft of the motor extends into the heating furnace 6 through the opening at the top of the heating furnace 6, thereby avoiding overheating damage to the motor. When the mounting assembly 1 is installed outside the heating furnace 6, the mounting base 101, the kit 102, and the gear set are all located outside the heating furnace 6, and the mandrel 3 can extend into the heating furnace 6 through the opening at the top of the heating furnace 6, so that the mounting part on the mandrel 3 is located inside the heating furnace 6, ensuring that the quartz rod is completely located inside the heating furnace 6. The laser sensor 2 is located outside the heating furnace 6. The heating furnace 6 has an observation hole for directing the laser from the laser sensor 2 onto the quartz rod. Before placing the quartz rod on the mounting part of the mandrel 3, the operator can measure the length of the quartz rod and weigh it, or directly install the quartz rod on the mounting part of the mandrel 3 after measuring its length. Then, the mass m of the quartz rod is calculated using the sensing device 5, and the dynamic torque change ΔT and angular acceleration α of the motor during constant-speed rotation are collected. According to the formula ΔT=J·α, the dynamic moment of inertia J of the quartz rod can be measured. Then, according to the formula J=mr... 2 / 2 can be used to calculate the radius r of the quartz rod during the sintering process, and obtain the diameter D1 during the sintering process. Before sintering, the initial diameter D2 of the quartz rod can be measured first. By comparing the diameter D1 during the sintering process with the initial diameter D2 of the quartz rod, the operator can determine whether the quartz rod is in a normal sintering state. If the difference between D1 and D2 is too large, the operator needs to intervene in time and adjust the sintering parameters.
[0028] In one embodiment, such as Figure 6 and Figure 8 As shown, the axis of the quartz rod coincides with the axis of the heating furnace 6, and the middle part of the quartz rod is located in the high-temperature heating zone of the heating furnace 6, ensuring that the quartz rod is heated evenly.
[0029] In one embodiment, such as Figures 7-10As shown, the heating furnace 6 includes a lower furnace body 601, which is located at the bottom of the heating furnace 6 and in the low-temperature heating zone. An observation hole is set at the bottom of the lower furnace body 601, and the axis of the observation hole coincides with the axis of the laser sensor 2. A transparent plate 602 is set inside the observation hole. The transparent plate 602 is a glass plate. By setting the transparent plate 602, excessive heat loss inside the heating furnace 6 can be avoided. A sealing ring 603 is set on the transparent plate 602 to seal the observation hole.
[0030] In one embodiment, such as Figure 10 As shown, the inner wall of the lower furnace body 601 is covered with heat insulation material 604 to reduce heat radiation. The heat insulation material 604 can be made of existing high-temperature resistant materials.
[0031] In one embodiment, such as Figure 10 As shown, a cooling water channel 605 is provided on the lower furnace body 601. The cooling water channel 605 is connected to an external circulating pump through a water pipe. The cooling water channel 605 is located between the inner wall and the outer wall of the lower furnace body 601. The cooling water channel 605 passes near the transparent plate 602, which can reduce the risk of heat damage to the transparent plate 602 and improve the service life of the transparent plate 602.
[0032] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.
Claims
1. A device for monitoring the dimensions of sintered quartz rods, characterized in that, The device includes a mounting assembly (1) and a laser sensor (2). The mounting assembly (1) is rotatably equipped with a spindle (3). The spindle (3) is connected to a drive component (4). The spindle (3) is provided with a mounting part for mounting a quartz rod. The axis of the spindle (3) is parallel to or coincides with the axis of the quartz rod. The quartz rod is located between the spindle (3) and the laser sensor (2). The detection end of the laser sensor (2) is set towards the quartz rod.
2. The quartz rod sintering and forming size monitoring device according to claim 1, characterized in that, The mounting assembly (1) includes a mounting base (101) and a kit (102). The kit (102) is sleeved on the spindle (3) and rotatably connected to the spindle (3). The kit (102) is provided with a limiting part to prevent relative axial displacement between the kit (102) and the spindle (3). A weighing sensor (5) is fixedly mounted on the mounting base (101), and the kit (102) is disposed on the sensor (5).
3. The quartz rod sintering and forming size monitoring device according to claim 2, characterized in that, The sensing device (5) is connected to the kit (102) by an adjusting bolt (103). One end of the adjusting bolt (103) is rotatably connected to the sensing end of the sensing device (5), and the adjusting bolt (103) is threadedly connected to the kit (102).
4. The quartz rod sintering and forming size monitoring device according to claim 2, characterized in that, A guide shaft (104) for guiding the kit (102) is provided between the mounting base (101) and the kit (102).
5. The quartz rod sintering and forming size monitoring device according to claim 1, characterized in that, The axis of the mandrel (3), the axis of the quartz rod, and the axis of the laser sensor (2) coincide.
6. A quartz rod sintering and forming dimension monitoring system, employing the quartz rod sintering and forming dimension monitoring device as described in any one of claims 1-5, characterized in that, The device includes a heating furnace (6), the mounting assembly (1) is mounted on the heating furnace (6), the quartz rod is located inside the heating furnace (6), the laser sensor (2) is located outside the heating furnace (6), and the heating furnace (6) is provided with an observation hole for directing the laser of the laser sensor (2) toward the quartz rod.
7. The dimensional monitoring system for sintering and forming of quartz rods according to claim 6, characterized in that, The axis of the quartz rod coincides with the axis of the heating furnace (6).
8. The dimensional monitoring system for sintering and forming of quartz rods according to claim 6, characterized in that, The heating furnace (6) includes a lower furnace body (601), and the observation hole is provided on the lower furnace body (601). The axis of the observation hole coincides with the axis of the laser sensor (2). A transparent plate (602) is provided inside the observation hole, and a sealing ring (603) for sealing the observation hole is provided on the transparent plate (602).
9. The dimensional monitoring system for sintering and forming of quartz rods according to claim 8, characterized in that, The lower furnace body (601) is provided with heat insulation material (604) to reduce heat radiation.
10. A quartz rod sintering and forming dimension monitoring system according to claim 8, characterized in that, The lower furnace body (601) is provided with a cooling water channel (605).