CN212334988U - Continuous accurate feeding system of TFT liquid crystal glazing kiln - Google Patents
Continuous accurate feeding system of TFT liquid crystal glazing kiln Download PDFInfo
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- CN212334988U CN212334988U CN202020530682.8U CN202020530682U CN212334988U CN 212334988 U CN212334988 U CN 212334988U CN 202020530682 U CN202020530682 U CN 202020530682U CN 212334988 U CN212334988 U CN 212334988U
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Abstract
The utility model provides a continuous and accurate feeding system of a TFT liquid crystal glass kiln, which comprises a control cabinet, a stock bin supporting platform and feeding units which are arranged on the stock bin supporting platform in a bilateral symmetry manner; the feeding unit comprises a large storage bin, a primary spiral feeder, an intermediate storage bin and a secondary spiral feeder which are arranged from top to bottom; a controller is arranged in the control cabinet, the input end of the controller is respectively connected with the weighing module and the signal input module, the output end of the controller is connected with the variable frequency output module and the fixed frequency output module, the input end of the weighing module is connected with the weighing sensor, and the input end of the signal input module is connected with the upper material level meter and the lower material level meter; the output end of the variable frequency output module is connected with a first-stage spiral feeder through a first-stage spiral frequency converter, and the output end of the fixed frequency output module is connected with a second-stage spiral feeder through a second-stage spiral frequency converter; the feeding device has the advantages of simple structure and convenience in control, improves the product precision and the working efficiency, and ensures the accuracy of a feeding system and the continuous stability of feeding.
Description
Technical Field
The utility model relates to a glass production technical field specifically is a continuous accurate feeding system of TFT liquid crystal glazing kiln.
Background
The currently used glass kiln powder feeding system has large feeding amount of large and medium glass kilns, adopts a conveyer belt and blanket type feeding machine, circularly feeds materials once by one action, and belongs to pulse feeding. For small-sized flame kilns or electric melting kilns with higher feeding space temperature, part of manufacturers still mainly use manual feeding. However, the manual feeding has the defects of high labor intensity, large environmental pollution, large fluctuation of glass liquid level, difficult control of feeding amount and the like, and some manufacturers realize automatic feeding, but the device is complex and the control logic is poor, so that the liquid level and temperature fluctuation in the kiln is large, the brick erosion is fast, the glass melting quality is unstable, and the glass dust flies in the production field, so that the pollution to the production field is large. For the TFT liquid crystal glass electric-assisted kiln with daily extraction of less than 20 tons of melt, the kiln area is small, the product precision requirement is high, continuous and stable feeding must be ensured, the liquid level fluctuation is less than 1mm, the temperature change is less than 0.5 ℃, the extraction amount must be accurately matched with the feeding amount, and the feeding amount control precision is less than 5kg/h, so the existing pulse feeding cannot meet the requirement.
SUMMERY OF THE UTILITY MODEL
To the problem that exists among the prior art, the utility model provides a TFT liquid crystal glazing kiln is accurate in succession throws material system, simple structure, control is convenient, has improved product precision and work efficiency, has guaranteed the accuracy nature of throwing the material system and the continuous stability who throws the material.
The utility model discloses a realize through following technical scheme:
a continuous and accurate feeding system of a TFT liquid crystal glass kiln comprises a control cabinet, a stock bin supporting platform and feeding units which are arranged on the stock bin supporting platform in a bilateral symmetry manner;
the feeding unit comprises a large storage bin, a primary spiral feeder, an intermediate storage bin and a secondary spiral feeder which are arranged from top to bottom;
a controller is arranged in the control cabinet, the input end of the controller is respectively connected with the weighing module and the signal input module, the output end of the controller is connected with the variable frequency output module and the fixed frequency output module, the input end of the weighing module is connected with the weighing sensor, and the input end of the signal input module is connected with the upper material level meter and the lower material level meter; the output end of the variable frequency output module is connected with a first-stage spiral feeder through a first-stage spiral frequency converter, and the output end of the fixed frequency output module is connected with a second-stage spiral feeder through a second-stage spiral frequency converter;
the weighing sensor is fixedly arranged on the stock bin supporting platform;
the material loading level meter is arranged at the top end of the side wall of the intermediate bin; the material level meter sets up the lateral wall bottom at the intermediate bin down.
Preferably, a human-computer interaction module is arranged on the control cabinet, and the input end of the human-computer interaction interface module is connected with the output end of the controller and used for displaying detection signals of the weighing sensor, the feeding level indicator and the discharging level indicator.
Preferably, the output end of the controller is connected with a rapping device through a switch signal output module, and the rapping device is arranged on the outer side wall of the large storage bin.
Preferably, the controller is a PLC controller.
Preferably, the number of the weighing sensors is not less than 3, and the weighing sensors are uniformly supported on the side wall of the large storage bin; the weighing sensor is connected with a weighing signal in parallel and is connected into the weighing unit.
Preferably, a large-bin gate valve is arranged between the discharge port of the large bin and the feeding port of the primary spiral feeder.
Preferably, the discharge port of the first-stage spiral feeder is connected with the feed inlet of the intermediate bin through a soft cloth.
Preferably, an intermediate bin gate valve is arranged between the discharge port of the intermediate bin and the feed inlet of the secondary spiral feeder; the intermediate bin gate valve is in butt joint with a feeding port of the secondary spiral feeder through a clamping sleeve.
Preferably, the device also comprises a dust collector arranged on the end face of the feed inlet of the large storage bin.
Compared with the prior art, the utility model discloses following profitable technological effect has:
the utility model provides a continuous and accurate feeding system of a TFT liquid crystal glass kiln, which is characterized in that feeding units are symmetrically arranged on a stock bin supporting platform in a left-right manner, so that the feeding uniformity is ensured; the weight of the fed materials is collected by a weighing sensor, the weight of the fed materials is input into a controller through a weighing module, and the controller outputs a constant-frequency signal to a motor of a secondary spiral feeder according to the corresponding weight of the fed materials to ensure the constant-speed operation of the secondary spiral feeder; the material level information is acquired by an upper material level indicator and a lower material level indicator which are arranged and is input into a controller through a signal input module, and the controller outputs a variable frequency signal to a motor of a primary spiral feeder according to the input material level signal so that the variable frequency feeding machine can operate in a variable frequency mode; therefore, the variable frequency control of the primary output and the fixed frequency control of the secondary output are realized, the problem of total output is ensured, the continuity of primary intermediate input greatly improves the feeding accuracy; meanwhile, the large storage bin, the primary spiral feeder, the intermediate storage bin and the secondary spiral feeder which are arranged from top to bottom are matched, so that the continuity of a feeding system is guaranteed, the loss of powder in the conveying process is reduced, the powder is effectively and continuously fed into the glass kiln, and the working efficiency is improved.
Furthermore, a man-machine interaction module is arranged on the control cabinet and used for displaying weighing and material level signals and detecting the operation condition of the system in real time.
Furthermore, the switch signal output module is arranged to output the switch signal according to the setting, so that the rapping device can be controlled to periodically rap the large material bin, the phenomenon of material bridging in the large material bin is avoided, and the continuity of the powder in the large material bin is improved.
Furthermore, the controller adopts the PLC controller, reliable realization motor decide frequently and variable frequency control, and the interference killing feature is strong, effectively guarantees to throw material efficiency, has improved the accuracy nature of throwing the material system.
Furthermore, the number of the weighing sensors is not less than 3, and the weighing sensors are uniformly supported on the side wall of the large storage bin; the weighing sensor is connected with the weighing signal in parallel and is connected with the weighing module, so that the stability of supporting the large storage bin is improved, and the inaccuracy of the measured weighing signal caused by the inclination of the large storage bin is avoided.
Furthermore, a large-bin gate valve is arranged between a large-bin discharge port and a feeding port of the first-stage spiral feeder, so that the feeding amount of powder in the large bin entering the first-stage spiral feeder is effectively controlled.
Furthermore, the discharge port of the first-stage spiral feeder is connected with the feeding port of the intermediate bin through soft cloth, so that the powder in the first-stage spiral feeder is prevented from flying before entering the intermediate bin, and the environmental pollution is reduced.
Furthermore, an intermediate bin gate valve is arranged between the discharge port of the intermediate bin and the feeding port of the second-level spiral feeder, the intermediate bin gate valve is in butt joint with the feeding port of the second-level spiral feeder through a clamping sleeve, and the powder leakage is avoided by effectively controlling the input amount of powder in the intermediate bin at the second-level spiral feeder.
Furthermore, the dust collector is arranged on the end face of the feed inlet of the large storage bin, and when the large storage bin is used for feeding, the dust collector is opened, so that glass dust is prevented from scattering everywhere, and the environmental pollution is effectively reduced.
Drawings
Fig. 1 is a front view of a feeding system according to an embodiment of the present invention;
fig. 2 is a side view of a feeding system according to an embodiment of the present invention;
fig. 3 is a schematic diagram of a structural principle of a control cabinet according to an embodiment of the present invention.
In the figure: 1 is a stock bin supporting platform; 2 is a weighing sensor; 3 is a large storage bin; 4 is a dust collector; 5 is a gate valve with a large bunker; 6 is a first-stage screw feeder; 7 is an intermediate bin; 8 is a loading level indicator; 9 is a blanking position meter; 10 is a gate valve of an intermediate bin; 11 is a secondary spiral feeder; 12 is a glass kiln furnace; 13 is a knocking device; and 14 is a control cabinet.
Detailed Description
The present invention will now be described in further detail with reference to the accompanying drawings, which are provided for purposes of illustration and not limitation.
The utility model relates to a continuous and accurate feeding system of a TFT liquid crystal glass kiln, which comprises a control cabinet 14, a stock bin supporting platform 1 and feeding units which are symmetrically arranged on the stock bin supporting platform 1 in a left-right manner;
the feeding unit comprises a large storage bin 3, a primary spiral feeder 6, an intermediate storage bin 7 and a secondary spiral feeder 11 which are arranged from top to bottom, and is shown in figures 1 and 2;
the number of the weighing sensors 2 is not less than 3, and the weighing sensors 2 are fixedly arranged on the stock bin supporting platform 1 and are uniformly supported on the side wall of the large stock bin 3; the weighing sensor 2 is connected with the input end of the controller through a weighing module after parallel weighing signals are combined; the output end of the controller outputs a fixed frequency signal corresponding to the weighing signal, and the fixed frequency output module and the secondary spiral frequency converter which are sequentially connected with the output end control the secondary spiral feeder 11 to feed at a fixed speed;
the material loading level indicator 8 is arranged at the top end of the side wall of the intermediate bin 7; the blanking level indicator 9 is arranged at the bottom end of the side wall of the intermediate bin 7; the output end of the feeding level indicator 8 and the output end of the discharging level indicator 9 are connected with the input end of the controller through a signal input module, the output end of the controller outputs a variable frequency signal corresponding to the level signal, and the variable frequency output module and the first-stage spiral frequency converter which are sequentially connected control the first-stage spiral feeder 6 to feed materials in a variable speed manner;
a man-machine interaction module is arranged on the control cabinet 14; the input end of the human-computer interaction module is connected with the output end of the controller and used for displaying the weighing and material level signals; the switch signal output module connected with the output end of the controller is connected with the control end of a rapping device 13, and the rapping device 13 is arranged on the outer side wall of the large bunker 3, as shown in fig. 3.
The utility model relates to a continuous accurate feeding system of TFT liquid crystal glazing kiln, its theory of operation as follows:
in the feeding unit, powder is continuously fed into a large material bin 3, and a dust collector 4 is started to prevent glass dust from scattering around; the input end of a controller in the control cabinet 14 is respectively connected with the weighing module and the signal input module, and the output end of the controller is respectively connected with the variable frequency output module, the fixed frequency output module, the switch signal output module and the human-computer interaction module; the input end of the control cabinet 14 is respectively connected with the weighing sensor 2, the feeding level indicator 8 and the discharging level indicator 9; 3 lateral walls in big feed bin set up 3 weighing sensor, support under weighing sensor 2 and weigh the measurement, 2 parallelly connected weighing signal of weighing sensor merge the back through weighing module connection director's input, the controller corresponds output constant frequency signal and controls second grade spiral feeder 11 through constant frequency output module and second grade spiral converter, sets up given frequency to second grade spiral feeder 11, guarantees that throw material volume control precision is at 5 kg/h.
The control end of a beating device 13 on the outer side wall of the large storage bin 3 is connected with the output end of the switch signal output module, and the large storage bin 3 is periodically beaten, so that powder in the large storage bin 3 is kept smooth in the bin; a large bunker gate valve 5 is arranged between the discharge hole of the large bunker 3 and the feed inlet of the primary screw feeder 6; a discharge port of the primary screw feeder 6 is connected with a feed port of the intermediate bin 7 through soft cloth; the operation of acceleration and deceleration is carried out through detection signals of a feeding level indicator 8 and a discharging level indicator 9 of the intermediate bin 7; the output end of the feeding level indicator 8 and the output end of the discharging level indicator 9 are connected with the input end of the controller through a signal input module; the controller outputs a corresponding variable frequency signal to control the first-stage spiral feeder 6 through the variable frequency output module and the first-stage spiral frequency converter; on the basis of given frequency, the speed of the first-stage spiral feeder 6 is accelerated when the first-stage spiral feeder 6 is empty, and is decelerated when the bin is full, so that the intermediate bin 7 is always fed, and the idle running of the second-stage spiral feeder 11 is prevented.
An intermediate bin gate valve 10 is arranged between the discharge port of the intermediate bin 7 and the feeding port of the secondary spiral feeder 11, and the intermediate bin gate valve 10 is in butt joint with the feeding port of the secondary spiral feeder 11 through a clamping sleeve; the frequency of the secondary spiral feeder 11 is given through the control cabinet 14, and the secondary spiral feeder 11 feeds materials at a constant speed according to the given frequency, so that the accurate control of the feeding amount is ensured; and feeding the powder into a glass kiln 12 through a secondary spiral feeder 11, and finishing the feeding work.
The utility model discloses well weighing sensor 2's measured weight has contained the weight of glass powder in big feed bin 3, dust arrester 4, big feed bin gate valve 5, one-level screw feeder 6 and the big feed bin, and the controller adopts the PLC controller, carries out individual control through the solidification at the motor frequency conversion of wherein current ripe and fixed frequency control procedure to the motor of two-stage screw feeder.
Claims (9)
1. A continuous and accurate feeding system of a TFT liquid crystal glass kiln is characterized by comprising a control cabinet (14), a stock bin supporting platform (1) and feeding units which are arranged on the stock bin supporting platform (1) in a bilateral symmetry manner;
the feeding unit comprises a large storage bin (3), a primary spiral feeder (6), an intermediate storage bin (7) and a secondary spiral feeder (11) which are arranged from top to bottom;
a controller is arranged in the control cabinet (14), the input end of the controller is respectively connected with the weighing module and the signal input module, the output end of the controller is connected with the variable frequency output module and the fixed frequency output module, the input end of the weighing module is connected with the weighing sensor (2), and the input end of the signal input module is connected with the upper material level meter (8) and the lower material level meter (9); the output end of the variable frequency output module is connected with a primary spiral feeder (6) through a primary spiral frequency converter, and the output end of the fixed frequency output module is connected with a secondary spiral feeder (11) through a secondary spiral frequency converter;
the weighing sensor (2) is fixedly arranged on the stock bin supporting platform (1);
the material loading level meter (8) is arranged at the top end of the side wall of the intermediate bin (7); the material level meter (9) is arranged at the bottom end of the side wall of the intermediate bin (7).
2. The continuous and accurate feeding system of the TFT liquid crystal glass kiln as claimed in claim 1, wherein a human-computer interaction module is arranged on the control cabinet (14), and the input end of the human-computer interaction interface module is connected with the output end of the controller and is used for displaying detection signals of the weighing sensor (2), the feeding level indicator (8) and the discharging level indicator (9).
3. The continuous accurate feeding system of the TFT liquid crystal glass kiln as claimed in claim 1, wherein the output end of the controller is connected with a rapping device (13) through a switching signal output module, and the rapping device (13) is arranged on the outer side wall of the large storage bin (3).
4. The continuous accurate feeding system of the TFT liquid crystal glass kiln as claimed in claim 1, wherein the controller is a PLC controller.
5. The continuous accurate feeding system of the TFT liquid crystal glass kiln furnace is characterized in that the number of the weighing sensors (2) is not less than 3, and the weighing sensors are uniformly supported on the side wall of the large storage bin (3); and the weighing sensor (2) is connected with a weighing signal in parallel and is connected into the weighing unit.
6. The continuous and accurate feeding system of the TFT liquid crystal glass kiln as claimed in claim 1, wherein a large-silo gate valve (5) is arranged between the discharge port of the large silo (3) and the feed port of the primary screw feeder (6).
7. The continuous and accurate feeding system of the TFT liquid crystal glass kiln as claimed in claim 1, wherein the discharge port of the primary screw feeder (6) is connected with the feed port of the intermediate bunker (7) through soft cloth.
8. The continuous accurate feeding system of the TFT liquid crystal glass kiln furnace is characterized in that an intermediate bin gate valve (10) is arranged between the discharge port of the intermediate bin (7) and the feed port of the secondary spiral feeder (11); the intermediate bin gate valve (10) is in butt joint with a feeding port of the secondary spiral feeder (11) through a clamping sleeve.
9. The continuous accurate feeding system of the TFT liquid crystal glass kiln furnace is characterized by further comprising a dust collector (4) arranged on the end face of the feeding hole of the large storage bin (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020530682.8U CN212334988U (en) | 2020-04-10 | 2020-04-10 | Continuous accurate feeding system of TFT liquid crystal glazing kiln |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020530682.8U CN212334988U (en) | 2020-04-10 | 2020-04-10 | Continuous accurate feeding system of TFT liquid crystal glazing kiln |
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| CN212334988U true CN212334988U (en) | 2021-01-12 |
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| CN202020530682.8U Active CN212334988U (en) | 2020-04-10 | 2020-04-10 | Continuous accurate feeding system of TFT liquid crystal glazing kiln |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113698071A (en) * | 2021-08-09 | 2021-11-26 | 郑州旭飞光电科技有限公司 | Feeding system and feeding method for glass kiln |
| CN115321790A (en) * | 2022-08-04 | 2022-11-11 | 彩虹（合肥）液晶玻璃有限公司 | Connecting and fixing device for TFT batch feeder and intermediate bin |
-
2020
- 2020-04-10 CN CN202020530682.8U patent/CN212334988U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113698071A (en) * | 2021-08-09 | 2021-11-26 | 郑州旭飞光电科技有限公司 | Feeding system and feeding method for glass kiln |
| CN115321790A (en) * | 2022-08-04 | 2022-11-11 | 彩虹（合肥）液晶玻璃有限公司 | Connecting and fixing device for TFT batch feeder and intermediate bin |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Hunan Shaohong special glass Co.,Ltd. Assignor: CAIHONG GROUP Co.,Ltd. Contract record no.: X2023980042112 Denomination of utility model: A Continuous and Accurate Feeding System for TFT Liquid Crystal Glass Kiln Granted publication date: 20210112 License type: Common License Record date: 20230922 |
|
| EE01 | Entry into force of recordation of patent licensing contract |