Non-contact master controller and glass melting furnace fire exchange control system
By using a non-contact main command controller in the furnace fire change control system, the non-contact conversion of position electrical signals is achieved using the cam induction disk and the induction metal, the fault problem caused by mechanical collision of the contact main command controller is solved, and the reliability and efficiency of the system are improved.
Patent Information
- Application Number
- CN202421979135.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-15
- Publication Date
- 2025-06-10
- Estimated Expiration
- 2034-08-15
AI Technical Summary
The existing contact main command controller wears and damages the contacts due to mechanical collision during the furnace fire replacement process, and the control room is out of control, with a high failure rate and a long recovery time.
The non-contact main command controller is used to realize non-contact conversion of position electrical signals through the cam induction disk and the induction metal, avoid mechanical contact, and use a reduction transmission mechanism and a protective cover to protect the internal structure.
It reduces the probability of contact wear and external force damage, simplifies the maintenance of production operation, improves the efficiency and accuracy of fire change operations, and reduces the impact of the kiln on the high-temperature environment.
Smart Images
Figure CN222964452U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of electronic glass manufacturing equipment, and particularly relates to a non-contact master controller and a glass melting furnace fire-changing control system. Background Art
[0002] Electronic glass is widely used in various fields such as smart phones, tablet computers, notebook computers, smart watches, vehicle-mounted applications, industrial control, and medical treatment. At the same time, due to its high strength, light weight, high transmittance and other characteristics, it has gradually been applied in large-size fields such as solar photovoltaics, new energy electric vehicles, and high-speed trains.
[0003] The stability of the combustion system of the melting furnace of the kiln plays a decisive role in the quality of the entire electronic glass product. Generally, the kiln furnace will perform a combustion commutation action every 20 minutes to realize the switching between the left fire and the right fire of the kiln furnace. The structural design of the control components in the commutation process is very important. The master controller currently used in the melting furnace commutation system is generally a contact type master controller. During the operation process, due to long-term mechanical collisions in the transmission process, the contact island screws are loosened, the contacts are worn, and the contacts are damaged due to the force on the contacts, resulting in the failure of the control room. In actual production, when using a travel switch or a contact type master controller to feedback the position electrical signal of the commutation action, faults caused by equipment wear or external forces often occur, the failure rate is relatively high and the recovery time is relatively long. After a failure occurs, the temperature of the melting furnace and the atmosphere inside the melting furnace are affected for a long time.
[0004] The present utility model is proposed due to the above problems. Content of the Utility Model
[0005] In order to solve the problems raised in the above background art, the present utility model aims to provide a non-contact master controller and a glass melting furnace fire-changing system, which can realize the feedback of the position electrical signal during the fire-changing process and avoid the problems caused by mechanical collisions of the mechanical contact type master control.
[0006] The present utility model provides the following technical solutions:
[0007] A non-contact master controller, comprising:
[0008] A transmission shaft, the end of the transmission shaft is connected with a speed reduction transmission mechanism, and the transmission shaft rotates through the speed reduction transmission mechanism. The speed reduction transmission mechanism is used for adjusting the speed of the transmission shaft;
[0009] At least one cam induction disc, the cam induction disc is radially installed on the transmission shaft, and the transmission shaft drives the cam induction disc to rotate through the speed reduction transmission mechanism;
[0010] At least one induction metal, and the induction metals are correspondingly arranged on the circumferences of the protrusions of the cam induction disc one by one;
[0011] At least one proximity switch is installed on the proximity switch mounting plate, and the induction metal is used to change its position relative to the proximity switch during rotation, thereby triggering the signal of the proximity switch non - contactingly.
[0012] The speed - reducing transmission mechanism includes a worm wheel and a worm that mesh with each other. The worm wheel is connected to the transmission shaft, and the worm drives the worm wheel to drive the transmission shaft to rotate.
[0013] The circumferential surface of the cam induction disc is embedded with induction metal, and the embedding radian of the induction metal is 100° - 150° of the circumference of the cam induction disc.
[0014] The number of the cam induction discs is 5, and they are installed along the axial direction of the transmission shaft; the number of the induction metals is also 5, and they correspond to the proximity switches one by one.
[0015] It also includes a protective cover to protect the internal structure of the non - contact master controller.
[0016] A glass melting furnace flue - gas switching control system includes the non - contact master controller described above.
[0017] It includes a left flue - gas duct and a right flue - gas duct. A left reversing damper is arranged in the left flue - gas duct and a right reversing damper is arranged in the right flue - gas duct.
[0018] It includes a flue - gas switching system controller, and the left reversing damper and the right reversing damper are respectively connected to the flue - gas switching system controller.
[0019] The flue - gas switching system controller is connected to the non - contact master controller.
[0020] The proximity switch of the non - contact master controller sends a trigger signal to the flue - gas switching system controller, and the flue - gas switching system controller sends a signal to the reversing damper, and the reversing damper cuts off the power supply to complete the reversing action.
[0021] The beneficial effects of the present utility model are as follows:
[0022] Through non - contact position electrical signal conversion, there is no physical collision problem during the operation of the non - contact master controller in the present utility model. The probability of contact wear and external force damage is greatly reduced, and the maintenance during the production operation process is simple. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] Figure 1 It is a three - dimensional view of the non - contact master controller in the present utility model;
[0024] Figure 2 For Figure 1 It is an enlarged schematic view of the structure of the cam induction disc and the induction metal in
[0025] Figure 3 It is a schematic view of the structure of the glass melting furnace flue - gas switching control system. Detailed implementation manners
[0026] Next, a non-contact master controller and a glass melting furnace flame switching control system according to the present disclosure will be described in detail with reference to the accompanying drawings; to make the objectives, technical solutions, and advantages of the present disclosure clearer, the technical solutions in the embodiments of the present disclosure will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present disclosure. Obviously, the described embodiments are part of the embodiments of the present disclosure, rather than all of the embodiments.
[0027] Therefore, the following detailed description of the embodiments of the present disclosure provided in conjunction with the accompanying drawings is not intended to limit the scope of the present disclosure claimed, but merely represents selected embodiments of the present disclosure. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present disclosure without creative efforts fall within the scope of protection of the present disclosure.
[0028] Unless otherwise defined in the context, the singular forms include the plural forms. Throughout the specification, the terms "comprising", "having", etc. are used herein to specify the presence of the described features, numbers, steps, operations, elements, components, or combinations thereof, but do not exclude the presence or addition of one or more other features, numbers, steps, operations, elements, components, or combinations thereof.
[0029] In addition, even though ordinal terms such as "first", "second", etc. may be used to describe various components, these components are not limited by these terms, and these terms are only used to distinguish one element from other elements. For example, without departing from the scope of the present disclosure, the first component may be referred to as the second component, and similarly, the second component may be referred to as the first component.
[0030] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "front", "rear", etc. is the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the disclosed product is usually placed during use, or the orientation or positional relationship commonly understood by those skilled in the art. It is only for the convenience of describing the present disclosure and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present disclosure.
[0031] First, the non-contact master controller will be described in detail. The non-contact master controller mainly uses an induction method to achieve, and the types of its induction elements are mainly the following: inductive induction elements, photoelectric induction elements, ultrasonic induction elements. The present utility model uses inductive induction elements.
[0032] Reference Figures 1 to 2As shown in the figure, the specific implementation of the non-contact master controller will be described first, including a protective cover 8 that protects the main induction components inside the non-contact master controller: a cam induction disc 2, an induction metal 3, and a proximity switch 4. The working principle of this non-contact master controller is that the induction metal 3 depends on the relative position change between it and the proximity switch 4. When the cam induction disc 2 rotates with the transmission mechanism, the induction metal will periodically approach or move away from the induction area of the proximity switch 4; when the induction metal 3 approaches the proximity switch 4, it will change the magnetic field distribution around the proximity switch 4, thereby generating an induction current inside the proximity switch 4. The magnitude or change of this induction current will be detected and converted into an electrical signal, which in turn triggers the control logic of the control system.
[0033] Reference Figure 1 As shown in the figure, in this embodiment, the installation position of the reduction drive mechanism of the cam induction disc is at the bottom of the protective cover 8. Its reduction drive mechanism is a mutually meshing worm gear 6 and worm 7. The worm gear 6 is connected to the bottom 1 of the transmission shaft 1, and the worm 7 drives the worm gear 6 to drive the transmission shaft 1 to rotate. The transmission shaft 1 rotates through the reduction drive mechanism, and the reduction drive mechanism is used for speed adjustment of the transmission shaft 1, and the reduction ratio can be adjusted. The larger the reduction ratio, the slower the angular velocity of the induction disc, that is, the rotation speed of the cam induction disc 2 can be adjusted.
[0034] At least one cam induction disc 2 is radially installed on the transmission shaft 1, and the transmission shaft 1 drives the cam induction disc 2 to rotate through the reduction drive mechanism.
[0035] Further, in this embodiment, the cam induction disc 2 is made of non-inductive material and cannot generate an induction effect with the proximity switch 4.
[0036] Therefore, induction metals 3 are correspondingly arranged one by one on the convex circumference of the cam induction disc 2, and there are at least one pair or more of the induction metals 3 and the cam induction disc 2.
[0037] In a further embodiment, the cam induction disc 2, as a carrier of the induction element, can be a circular or annular metal or non-metal structure for installing and fixing the induction metal 3. The induction metal should be firmly embedded in the cam induction disc 2 to ensure its stability and reliability.
[0038] In a further embodiment, the induction metal 3 is embedded in the circumferential surface of the cam induction disc 2, and the embedding radian of the induction metal 3 is 100° - 150° of the circumference of the cam induction disc 2.
[0039] Furthermore, the embedding radian of the induction metal 3 is 120° of the circumference of the cam induction disc 2.
[0040] Further, the embedding methods include welding, bonding, or mechanical fixing, etc.
[0041] A proximity switch 4 is provided corresponding to the induction metal 3 one by one. The induction metal 3 and the proximity switch 4 never come into contact during the rotation process, but generate electrical signals through electromagnetic induction.
[0042] The proximity switch 4 is installed on the proximity switch mounting plate 5. The induction metal 3 is used to change its position relative to the proximity switch 4 during the rotation process, thereby triggering the signal of the proximity switch 4 non - contact.
[0043] In some specific embodiments, the number of the cam induction discs 2 is 5, and they are axially installed along the transmission shaft 1; the number of the induction metals 3 is also 5, and they correspond to the proximity switches 4 one by one. Thus, various methods can be generated according to the positional relationship between different induction metals 3 and proximity switches 4.
[0044] For example, longitudinally, 5 induction metals 3 are embedded side by side, corresponding to the proximity switches 4 one by one, and the induction effect is generated simultaneously, that is, 5 proximity switches 4 are controlled simultaneously, greatly improving the working efficiency.
[0045] Thus, different control methods can be generated by different positional arrangements of the induction metal 3, different induction positions can be adjusted, and multi - group position signal conversion can be realized.
[0046] This non - contact master controller is for non - contact position electrical signal conversion. The non - contact master controller has no physical collision problem during operation, greatly reducing the probability of contact wear and external force damage, and the maintenance during the production operation process is simple.
[0047] Reference Figures 1 to 3 As shown, a glass melting furnace flue - gas switching control system including the non - contact master controller with the above - mentioned embodiments is disclosed, and its specific embodiments are as follows.
[0048] It includes a left flue - gas duct 10 and a right flue - gas duct 11. The left flue - gas duct 10 and the right flue - gas duct 11 lead to the melting part 14 of the glass liquid 13. A left reversing shutter 101 is provided in the left flue - gas duct 10 and a right reversing shutter 111 is provided in the right flue - gas duct 11.
[0049] It further includes a flue - gas switching system controller 12. The left reversing shutter 101 and the right reversing shutter 111 are respectively connected to the flue - gas switching system controller 12; the flue - gas switching system controller 12 is connected to the non - contact master controller; the proximity switch 4 of the non - contact master controller sends a trigger signal to the flue - gas switching system controller 12, and the flue - gas switching system controller 12 sends a signal to the reversing shutter to control the reversing shutter to cut off the power supply to complete the reversing action.
[0050] Specifically, the non-contact proximity switch 4 monitors the position or state change of the induction metal 3 in real time through its induction coil. When the induction metal 3 moves into the induction range of the proximity switch 4, it will change the magnetic field distribution in the induction coil, thereby generating an electrical signal, which is transmitted to the fire-switching system controller 12; after receiving the electrical signal from the non-contact proximity switch 4, the fire-switching system controller 12 will perform a series of signal processing and logical judgments; by comparing the current signal with a preset value or threshold, the fire-switching system controller 12 can determine whether the induction metal 3 has reached a predetermined position; perform a commutation operation: once the fire-switching system controller 12 confirms that the induction metal 3 has reached the predetermined position, it will trigger the corresponding motor commutation stop operation to achieve the commutation of the airflow, flame or material in the kiln.
[0051] In the specific implementation manner, for example, in the non-contact master controller of the commutation gate plates of 10 burners in two kilns, one commutation can adjust the positions of 5 gate plates. The original contact master controller took 20 minutes for each gate plate. In this implementation manner, the adjustment time is 1 / 5 of the original, the adjustment accuracy and timeliness are greatly improved, the work efficiency is greatly improved, the workload in the high-temperature environment of the kiln is greatly reduced, and the influence time of the adjustment process on the kiln is also correspondingly reduced.
Claims
1. A non-contact master controller, characterized in that include: A transmission shaft, wherein a reduction transmission mechanism is connected to the end of the transmission shaft, and the transmission shaft rotates through the reduction transmission mechanism, and the reduction transmission mechanism is used to adjust the speed of the transmission shaft; At least one cam sensing disc, wherein the cam sensing disc is radially mounted on the transmission shaft, and the transmission shaft rotates through the reduction transmission mechanism to drive the cam sensing disc to rotate; At least one sensing metal, the sensing metal being arranged on the convex circumference of the cam sensing disc in a one-to-one correspondence; At least one proximity switch is mounted on the proximity switch mounting plate, and the inductive metal is used to change its position relative to the proximity switch during the rotation process, thereby triggering the signal of the proximity switch in a non-contact manner.
2. A contactless master controller according to claim 1, characterized in that: The reduction transmission mechanism comprises a worm wheel and a worm that mesh with each other. The worm wheel is connected to the transmission shaft, and the worm drives the worm wheel and thus drives the transmission shaft to rotate.
3. A contactless master controller according to claim 1, characterized in that: The circumferential surface of the cam sensing disc is embedded with sensing metal, and the embedding arc of the sensing metal is 100°-150° of the circumference of the cam sensing disc.
4. A contactless master controller according to claim 3, characterized in that: The number of the cam sensing discs is 5 and they are installed axially along the transmission shaft; the number of the sensing metals is also 5 and they correspond one to one with the proximity switches.
5. A contactless master controller according to claim 3, characterized in that: It also includes a protective cover to protect the internal structure of the non-contact master controller.
6. A glass melting furnace fire control system, characterized in that: It comprises a contactless master controller as described in any one of claims 1 to 5.
7. A glass melting furnace fire control system according to claim 6, characterized in that: It comprises a left smoke duct and a right smoke duct. A left reversing damper is arranged in the left smoke duct and a right reversing damper is arranged in the right smoke duct.
8. A glass melting furnace fire control system according to claim 7, characterized in that: It comprises a fire-changing system controller, and the left reversing gate plate and the right reversing gate plate are respectively connected to the fire-changing system controller.
9. A glass melting furnace fire control system according to claim 8, characterized in that: The ignition system controller is connected to a non-contact master controller.
10. A glass melting furnace fire control system according to claim 9, characterized in that: The proximity switch of the non-contact master controller sends a trigger signal to the fire-changing system controller, and the fire-changing system controller sends a signal to the reversing gate, and the reversing gate cuts off the power supply to complete the reversing action.