Lifting measuring device for flow channel flashboard

Abstract

The utility model discloses a lifting measuring device for a flow channel flashboard, and belongs to the technical field of flow channel flashboard lifting control. Comprising a rotary encoder which is installed on a rotating shaft of a fluid channel flashboard lifting motor; the pulse distributor is connected with the rotary encoder; the first opening display meter is connected with the pulse distributor, and the first opening display meter is located in the central control room; the second opening display meter is connected with the pulse distributor, and the second opening display meter is located on the local control box; the power supply is connected with the pulse distributor. The technical scheme has the beneficial effects that the angular displacement and the acceleration of the motor rotating shaft are measured by adopting the rotary encoder, so that the ascending and descending heights and speeds of the liquid flow channel flashboard are indirectly measured, and the device has the advantages of high precision, simplicity and convenience in installation and low installation cost.

Description

Technical Field

[0001] The utility model relates to the technical field of liquid flow channel gate plate lifting control, in particular to a liquid flow channel gate plate lifting measurement device. Background Art

[0002] The liquid channel regulating gate and its lifting device are set in the liquid channel between the melting furnace and the tin bath. The flow cross-section of the glass liquid is controlled by adjusting the lifting and lowering of the gate to adjust the flow volume of the glass liquid, thereby controlling the width and thickness of the glass plate, thereby meeting the requirements of the float glass production line for producing glass plates of different thicknesses and widths.

[0003] In the prior art, a Chinese utility model patent with publication number CN203021428U discloses a device for controlling the lifting of a liquid channel gate. The device includes a grating ruler and a converter box. The converter box includes five terminal blocks, X1-X5, with the X1 terminal block including eight sockets. The converter box converts the clock pulse signal and position analog signal of the liquid channel gate measured by the grating ruler into RS422 and RS485 signals and transmits them to a DCS (distributed control system) control module and a digital display. The control signal output terminal of the DCS control module controls the drive device connected to the liquid channel gate. This patent can control the flow cross-section of the glass liquid, but the control device of this patent is complex to install and expensive to manufacture, significantly increasing enterprise costs. Utility Model Content

[0004] The purpose of this utility model is to provide a lifting and measuring device for a liquid flow channel gate to solve the above technical problems;

[0005] A device for measuring the lifting of a liquid channel gate, comprising:

[0006] A rotary encoder is installed on the shaft of the fluid channel gate lift motor;

[0007] a pulse distributor connected to the rotary encoder;

[0008] a first opening display meter connected to the pulse distributor, wherein the first opening display meter is located in the central control room;

[0009] a second opening display meter connected to the pulse distributor, the second opening display meter being located on the local control box;

[0010] Power supply, connected to the pulse distributor.

[0011] Preferably, the pulse distributor comprises,

[0012] An incoming line terminal block, connected to the voltage signal output terminal of the power supply;

[0013] A pulse receiving terminal block connected to the pulse output terminal of the rotary encoder;

[0014] A first pulse distribution terminal block is connected to the first opening display meter;

[0015] The second pulse distribution terminal block is connected to the second opening display meter.

[0016] Preferably, the pulse receiving terminal block includes:

[0017] a first wiring terminal connected to the rotary encoder via a first signal line;

[0018] a second wiring terminal connected to the rotary encoder via a second signal line;

[0019] a power supply terminal connected to the rotary encoder via a power line;

[0020] The first wiring terminal, the second wiring terminal and the power supply terminal are grounded.

[0021] Preferably, the first pulse distribution terminal block includes:

[0022] a third terminal connected to the second input terminal of the first opening display meter;

[0023] A fourth terminal connected to the first input terminal of the first opening display meter;

[0024] The first common terminal is connected to the common end of the first opening display meter.

[0025] Preferably, the second pulse distribution terminal block includes:

[0026] A fifth terminal connected to the second input terminal of the second opening display meter;

[0027] A sixth terminal connected to the first input terminal of the second opening display meter;

[0028] The second common terminal is connected to the common end of the second opening display meter.

[0029] Preferably, it also includes a first circuit breaker, the first input end of the first circuit breaker is connected to the positive output end of the power supply, the second input end of the first circuit breaker is connected to the negative output end of the power supply, and the first output end and the second output end of the first circuit breaker are connected to the incoming terminal.

[0030] Preferably, the central control room includes a second circuit breaker, the input end of the second circuit breaker is connected to the live wire, and the output end of the second circuit breaker is connected to the live wire terminal of the first opening display meter.

[0031] Preferably, the local control box includes a third circuit breaker, the input end of the third circuit breaker is connected to the live wire, and the output end of the third circuit breaker is connected to the live wire terminal of the second opening display meter.

[0032] Preferably, the input end of the power supply is connected to 220V AC power, and the output end of the power supply outputs 24V DC power.

[0033] Preferably, the phase difference of the pulse signal output by the rotary encoder is 90°.

[0034] The beneficial effects of the utility model are: using a rotary encoder to measure the angular displacement and acceleration of the motor shaft, thereby indirectly measuring the rising and falling heights and speeds of the flow channel gate, with the advantages of high precision, simple installation and low installation cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 The utility model is a circuit connection diagram of the lifting and measuring device of the liquid channel gate. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0037] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features therein can be combined with each other.

[0038] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, but they are not intended to limit the present invention.

[0039] A device for measuring the lift of a liquid channel gate, such as Figure 1 Shown, including,

[0040] The rotary encoder 1 is mounted on the rotating shaft of the fluid channel gate lift motor;

[0041] Pulse distributor 2, connected to rotary encoder 1;

[0042] The first opening display meter 3 is connected to the pulse distributor 2 and is located in the central control room 6;

[0043] The second opening display meter 4 is connected to the pulse distributor 2 and is located on the local control box 5;

[0044] Power supply 7, connected to pulse distributor 2.

[0045] Specifically, the present invention provides a device for measuring the lift of a liquid channel gate. A rotary encoder 1 is mounted on the shaft of the gate's lift motor. It converts mechanical quantities such as the angular displacement and angular velocity of the motor shaft into corresponding electrical pulses for digital output. A pulse distributor 2 accurately and reliably distributes the pulse signal from the rotary encoder 1 to two aperture display meters, which are mounted on the gate's on-site control box 5 and the console in the central control room 6. The present invention accurately displays the opening of the liquid channel gate, enabling adjustment of the flow rate of molten glass and, therefore, controlling the width and thickness of the glass sheet.

[0046] In a preferred embodiment, the pulse distributor 2 comprises:

[0047] Incoming terminal block +V, connected to the voltage signal output terminal of power supply 7;

[0048] Pulse receiving terminal block Input, connected to the pulse output terminal of rotary encoder 1;

[0049] The first pulse distribution terminal block Output1 is connected to the first opening display meter 3;

[0050] The second pulse distribution terminal block Output2 is connected to the second opening display meter 4.

[0051] Specifically, the pulse distributor 2 reduces circuit complexity. Compared to directly connecting each receiving device to the rotary encoder 1, the pulse distributor 2 simplifies circuit design, making management and maintenance easier. Through the distributor, each receiving device can independently process the pulse signal, preventing the failure of one device from affecting other devices, thereby improving system reliability and stability. This ensures that the signals received by all devices are accurately synchronized, thereby ensuring the accuracy of the measurement or control process.

[0052] In a preferred embodiment, the pulse receiving terminal block Input includes:

[0053] The first terminal A is connected to the rotary encoder 1 via the first signal line OUTA;

[0054] The second terminal B is connected to the rotary encoder 1 via the second signal line OUTB;

[0055] The power supply terminal Vout is connected to the rotary encoder 1 through the power line +Ub;

[0056] The first connection terminal A, the second connection terminal B and the power supply terminal Vout are grounded.

[0057] Specifically, the rotary encoder 1 and the pulse receiving terminal block Input are also connected via a zero voltage line OV to provide electrical grounding for the circuit, thereby ensuring the stability and safety of the circuit operation.

[0058] In a preferred embodiment, the first pulse distribution terminal block Output1 includes:

[0059] The third terminal A1 is connected to the second input terminal INPUTB1 of the first opening display meter 3;

[0060] The fourth terminal B1 is connected to the first input terminal INPUTA1 of the first opening display meter 3;

[0061] The first common terminal COM1 is connected to the common terminal COMM1 of the first opening display meter 3;

[0062] The second pulse distribution terminal block Output2 includes:

[0063] The fifth terminal A2 is connected to the second input terminal INPUTB2 of the second opening display meter 4;

[0064] The sixth terminal B2 is connected to the first input terminal INPUTA2 of the second opening display meter 4;

[0065] The second common terminal COM2 is connected to the common terminal COMM2 of the second opening display meter 4 .

[0066] Specifically, the first opening display meter 3 and the second opening display meter 4 are further provided with terminals N1 and N2 connected to the neutral line N. Each opening display meter (such as the first opening display meter 3 and the second opening display meter 4) can independently receive and process the pulse signal of the rotary encoder, allowing different control or measurement tasks to be performed at the same time without interfering with each other or relying on a single pulse signal source.

[0067] More specifically, the design of each terminal block helps prevent possible electromagnetic interference or electrical noise from affecting other devices, thereby providing good electrical isolation and signal clarity.

[0068] In a preferred embodiment, the device further comprises a first circuit breaker QF, wherein a first input terminal of the first circuit breaker QF is connected to the positive output terminal of the power supply 7, a second input terminal of the first circuit breaker QF is connected to the negative output terminal of the power supply 7, and a first output terminal and a second output terminal of the first circuit breaker QF are connected to the incoming line terminal +V;

[0069] The central control room 6 includes a second circuit breaker QL1, the input end of the second circuit breaker QL1 is connected to the live wire L, and the output end of the second circuit breaker QL1 is connected to the live wire terminal L1 of the first opening display meter 3;

[0070] The local control box 5 includes a third circuit breaker QL2 , an input end of the third circuit breaker QL2 is connected to the live wire L, and an output end of the third circuit breaker QL2 is connected to the live wire terminal L2 of the second opening display meter 4 .

[0071] Specifically, the first circuit breaker QF can control whether the output of the power supply 7 enters the pulse distributor 2 and other devices connected thereto. The circuit breaker can cut off the current of the power supply 7 when necessary, or reconnect it to provide power to the entire circuit.

[0072] More specifically, the power supply 7 is also connected to a fourth circuit breaker QL3, the input end of the fourth circuit breaker QL3 is connected to the live wire L, and the output end of the fourth circuit breaker QL3 is connected to the power supply, through the second circuit breaker QL1 and the third circuit breaker QL2, which helps to maintain the stability of the circuit and the reliability of the equipment, and avoids the risk of equipment damage or data loss caused by current mutation or other power problems.

[0073] In a preferred embodiment, the input end of the power supply 7 is connected to 220V AC power, and the output end of the power supply 7 outputs 24V DC power.

[0074] Specifically, the 24V DC output of power supply 7 makes connecting and integrating these devices simpler and more straightforward. DC power is generally more stable than AC power and is unaffected by grid frequency fluctuations. Its high energy efficiency reduces energy consumption and extends device life.

[0075] In a preferred embodiment, the phase difference of the pulse signals output by the rotary encoder 1 is 90°.

[0076] Specifically, the rotary encoder 1 outputs two groups of A / B pulses with a phase difference of 90°. These two groups of pulses can not only determine whether the flow channel gate is in an ascending or descending state, but also measure the ascending or descending speed of the flow channel gate.

[0077] Specifically, the optical code disk on the rotary encoder 1 of the present invention has many lines, and each line is arranged in 2 lines, 4 lines, 8 lines, and 16 lines in sequence. At each position of the encoder, the light and dark of each line are read by the photoelectric transmitting and receiving device to obtain a set of unique binary codes (Gray code) from 2 to the power of 0 to 2 to the power of n-1, and two sets of sinusoidal wave signals are combined into A and B. Each sinusoidal wave has a phase difference of 90° (relative to one cycle of 360°). The phase difference between A and B is 90°. The forward and reverse rotation of the encoder can be determined by comparing whether phase A is in front or phase B is in front.

[0078] More specifically, the pulse distributor 2 is a coded signal pulse signal expansion device that distributes the coded pulse signal in multiple synchronous channels to provide users with multiple pulse signals with low power consumption and high reliability.

[0079] More specifically, the opening indicator, serving as a gauge for displaying the fluid channel gate valve opening, can be displayed locally in a control box 5 or centrally in a central control room 6 for centralized control. The digital display features a 5-digit, 14.2mm red, sunlight-readable display and includes communication and bus capabilities, also enabled by optional plug-in cards. These include RS232, RS485, Modbus, DeviceNet, and Profibus-DP. Readout values and setpoint alarms can be controlled via the bus. The AC power supply is 220V, 50 / 60Hz, 15VA, with a baud rate of 4800baud, and data transmission is asynchronous serial.

[0080] The utility model discloses a lifting and measuring device for a fluid channel gate, which includes a rotary encoder 1, a pulse distributor 2, and an opening display meter. The pulse distributor 2 includes four terminal blocks, namely, a pulse receiving terminal block Input, a first pulse distribution terminal block Output1, a second pulse distribution terminal block Output2, and an incoming line terminal block +V. The incoming line terminal block +V is connected to the voltage signal output end of a power supply 7 as a DC power supply incoming line terminal, the pulse receiving terminal block Input is connected to the pulse output end of the rotary encoder 1 as a pulse signal receiving terminal, the first pulse distribution terminal block Output1 is connected to the first opening display meter 3 as a pulse signal distribution terminal, and the second pulse distribution terminal block Output2 is connected to the second opening display meter 4 as a pulse signal distribution terminal. The rotary encoder 1 converts mechanical quantities such as the angular displacement and angular velocity of the gate lifting motor shaft into corresponding electrical pulses and outputs them in digital form. The pulse distributor 2 correctly and reliably distributes the pulse signal of the rotary encoder 1 to two opening display meters. The opening display meters are respectively installed on the gate on-site control box 5 and the operating table. The operator can control the lifting and lowering of the gate according to the readings on the digital display meters.

[0081] In summary, the present application provides a lifting and measuring device for the liquid channel gate, which can reduce the installation cost by 1 / 5 compared with the existing technology. The rotary encoder 1 can convert mechanical quantities such as the angular displacement and angular velocity of the gate lifting motor shaft into corresponding electrical pulses and output them as digital quantities. It can accurately display the opening of the liquid channel gate to adjust the flow rate of the glass liquid, thereby controlling the width and thickness of the glass plate.

[0082] The above description is only a preferred embodiment of the present invention and does not limit the implementation method and protection scope of the present invention. For those skilled in the art, it should be aware that all solutions obtained by equivalent substitutions and obvious changes made using the description and illustrations of the present invention should be included in the protection scope of the present invention.

Claims

1. A device for measuring the lift of a liquid channel gate, characterized in that: include, A rotary encoder (1) is mounted on the rotating shaft of the fluid channel gate lift motor; A pulse distributor (2) connected to the rotary encoder (1); A first opening display meter (3) is connected to the pulse distributor (2), and the first opening display meter (3) is located in the central control room (6); A second opening display meter (4) is connected to the pulse distributor (2), and the second opening display meter (4) is located on the local control box (5); A power supply (7) connected to the pulse distributor (2); The pulse distributor (2) comprises, An input terminal block (+V) connected to a voltage signal output terminal of the power supply (7); A pulse receiving terminal block (Input), connected to the pulse output end of the rotary encoder (1); A first pulse distribution terminal block (Output 1) is connected to the first opening display meter (3); The second pulse distribution terminal block (Output2) is connected to the second opening display meter (4).

2. The device for measuring the lift of a liquid channel gate according to claim 1, characterized in that: The pulse receiving terminal block (Input) includes: A first wiring terminal (A) connected to the rotary encoder (1) via a first signal line (OUTA); A second wiring terminal (B) connected to the rotary encoder (1) via a second signal line (OUTB); A power supply terminal (Vout) connected to the rotary encoder (1) via a power line (+Ub); The first wiring terminal (A), the second wiring terminal (B) and the power supply terminal (Vout) are grounded.

3. The device for measuring the lift of a liquid channel gate according to claim 1, characterized in that: The first pulse distribution terminal block (Output1) includes: A third wiring terminal (A1) is connected to a second input terminal (INPUTB1) of the first opening display meter (3); a fourth wiring terminal (B1) connected to a first input terminal (INPUTA1) of the first opening display meter (3); The first common terminal (COM1) is connected to the common terminal (COMM1) of the first opening display meter (3).

4. The device for measuring the lift of a liquid channel gate according to claim 1, characterized in that: The second pulse distribution terminal block (Output2) includes, a fifth wiring terminal (A2) connected to a second input terminal (INPUTB2) of the second opening display meter (4); a sixth terminal (B2) connected to the first input terminal (INPUTA2) of the second opening display meter (4); The second common terminal (COM2) is connected to the common terminal (COMM2) of the second opening display meter (4).

5. The device for measuring the lift of a liquid channel gate according to claim 1, characterized in that: It also includes a first circuit breaker (QF), wherein a first input end of the first circuit breaker (QF) is connected to the positive output end of the power supply (7), a second input end of the first circuit breaker (QF) is connected to the negative output end of the power supply (7), and a first output end and a second output end of the first circuit breaker (QF) are connected to the incoming line terminal (+V).

6. The device for measuring the lift of a liquid channel gate according to claim 1, characterized in that: The central control room (6) includes a second circuit breaker (QL1), the input end of the second circuit breaker (QL1) is connected to the live wire (L), and the output end of the second circuit breaker (QL1) is connected to the live wire terminal (L1) of the first opening display meter (3).

7. The device for measuring the lift of a liquid channel gate according to claim 6, characterized in that: The local control box (5) comprises a third circuit breaker (QL2), an input end of the third circuit breaker (QL2) is connected to the live wire (L), and an output end of the third circuit breaker (QL2) is connected to the live wire terminal (L2) of the second opening display meter (4).

8. The device for measuring the lift of a liquid channel gate according to claim 1, wherein: The input end of the power supply (7) is connected to 220V alternating current, and the output end of the power supply (7) outputs 24V direct current.

9. The device for measuring the lift of a liquid channel gate according to claim 1, wherein: The phase difference of the pulse signal output by the rotary encoder (1) is 90°.

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