CN219870005U - Ceramic blank drying device - Google Patents
Ceramic blank drying device Download PDFInfo
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- CN219870005U CN219870005U CN202320417721.7U CN202320417721U CN219870005U CN 219870005 U CN219870005 U CN 219870005U CN 202320417721 U CN202320417721 U CN 202320417721U CN 219870005 U CN219870005 U CN 219870005U
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- resistor
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- operational amplifier
- schmitt trigger
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- 238000001035 drying Methods 0.000 title claims abstract description 23
- 239000000919 ceramic Substances 0.000 title claims abstract description 20
- 239000003990 capacitor Substances 0.000 claims abstract description 34
- 238000001914 filtration Methods 0.000 claims abstract description 25
- 238000007493 shaping process Methods 0.000 claims abstract description 20
- 238000002955 isolation Methods 0.000 claims abstract description 12
- 102100039435 C-X-C motif chemokine 17 Human genes 0.000 claims abstract description 4
- 101000889048 Homo sapiens C-X-C motif chemokine 17 Proteins 0.000 claims abstract description 4
- 230000003321 amplification Effects 0.000 claims description 2
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000010304 firing Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 238000005336 cracking Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- Drying Of Solid Materials (AREA)
Abstract
The utility model discloses a ceramic blank drying device, which comprises: the temperature sensor, the filtering comparison circuit, the filtering shaping circuit, the amplifying isolation circuit, the MCU and the touch display screen are connected in sequence; the filter comparison circuit includes: the output end of the temperature sensor is respectively connected with one end of the first capacitor, one end of the first resistor and one end of the second resistor, the other end of the first capacitor and the other end of the first resistor are grounded, the other end of the second resistor is respectively connected with the in-phase input end of the first operational amplifier and one end of the third resistor, the other end of the third resistor is connected with VCC1, the inverting input end of the first operational amplifier is connected with one end of the second capacitor, one end of the fourth resistor and one end of the fifth resistor, the other end of the second capacitor and the other end of the fourth resistor are grounded, and one end of the fifth resistor is connected with VCC2. By adopting the utility model, the temperature signal can be adjusted, so that the MCU can accurately judge the temperature signal.
Description
Technical Field
The utility model relates to the field of drying, in particular to a ceramic blank drying device.
Background
Ceramic green body drying (drying of moulding body) refers to the process of moisture removal from the green body. The strength of the green body is improved after the green body is dried. This facilitates handling, kiln loading and firing, and the reduction of moisture prevents waste products from being caused by the large amount of moisture discharged from the green body at the initial temperature rise of firing. In the process of drying the ceramic blank, the temperature is controlled very accurately, and the phenomena of cracking and the like of the blank caused by temperature errors are avoided. In real life, the ceramic body is dried and usually uses a temperature sensor to detect the temperature, a temperature signal acquired by the temperature sensor is weak and is easy to interfere, and a processor or a controller receives a signal transmitted by the temperature sensor and is easy to misjudge, so that the acquisition of a temperature value is not accurate enough. Accordingly, the present inventors have provided a ceramic green drying apparatus to solve the above-described problems.
Disclosure of Invention
In order to solve the problems, the utility model aims to provide the ceramic blank drying device which can adjust temperature signals so that an MCU can accurately judge the temperature signals and avoid the occurrence of misjudgment to a certain extent.
Based on this, the present utility model provides a ceramic green drying apparatus, the apparatus comprising:
the temperature sensor, the filtering comparison circuit, the filtering shaping circuit, the amplifying isolation circuit, the MCU and the touch display screen are connected in sequence;
the filter comparison circuit includes: the first resistor, the second resistor, the third resistor, the fourth resistor, the fifth resistor, the first capacitor, the second capacitor and the first operational amplifier; the output end of the temperature sensor is respectively connected with one end of the first capacitor, one end of the first resistor and one end of the second resistor, the other end of the first capacitor and the other end of the first resistor are grounded, the other end of the second resistor is respectively connected with the in-phase input end of the first operational amplifier and one end of the third resistor, the other end of the third resistor is connected with VCC1, the inverting input end of the first operational amplifier is connected with one end of the second capacitor, one end of the fourth resistor and one end of the fifth resistor, the other end of the second capacitor and the other end of the fourth resistor are grounded, and one end of the fifth resistor is connected with VCC2.
Wherein, the filter shaping circuit includes: the Schmitt trigger chip, the first diode, the sixth resistor and the third capacitor; the output end of the filtering comparison circuit is respectively connected with the 1A end and the 1B end of the Schmitt trigger chip, the 1Y end of the Schmitt trigger chip is connected with the anode of the first diode, the cathode of the first diode is respectively connected with the 2A end, the 2B end, one end of the sixth resistor and one end of the third capacitor of the Schmitt trigger chip, the other end of the sixth resistor and the other end of the third capacitor are grounded, the 2Y end of the Schmitt trigger chip is respectively connected with the 3A end and the 3B end of the Schmitt trigger chip, the 3Y end of the Schmitt trigger chip is used as the output end, and the model of the Schmitt trigger chip is HEF4093BT.
Wherein, the amplification isolation circuit includes: the second operational amplifier, the seventh resistor, the eighth resistor, the ninth resistor and the first triode; the output end of the filter shaping circuit is respectively connected with one end of the seventh resistor and the base electrode of the first triode, the other end of the seventh resistor is respectively connected with the collector electrode of the first triode and one end of the eighth resistor, the other end of the eighth resistor is connected with the voltage VCC3, the emitter electrode of the first triode is connected with one end of the ninth resistor, the other end of the ninth resistor is grounded, the collector electrode of the first triode is connected with the in-phase input end of the second operational amplifier, the inverting input end of the second operational amplifier is connected with the output end of the second operational amplifier, and the output end of the second operational amplifier is used as the output end of the amplifying isolation circuit.
Wherein, MCU is the singlechip.
According to the utility model, the temperature sensor is used for collecting the drying temperature for drying the ceramic blank, the temperature signal collected by the temperature sensor is very weak, the temperature signal firstly enters the filtering and comparing circuit, the filtering and comparing circuit filters interference clutter of the temperature signal, the filtered temperature signal enters the filtering and shaping circuit, the filtering and shaping circuit is used for filtering and shaping the temperature signal to improve the anti-interference capability of the signal, the amplifying and isolating circuit is used for amplifying the weak temperature signal and isolating the influence of the preceding circuit on the MCU, and after the MCU obtains the temperature signal, the MCU can obtain a temperature value according to the temperature signal and carry out reality through the touch display screen, so that the accurate obtaining of the drying temperature of the ceramic blank by a user is facilitated.
Drawings
In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of a ceramic green drying apparatus according to an embodiment of the present utility model;
fig. 2 is a circuit diagram of a filter comparison circuit, a filter shaping circuit and an amplifying isolation circuit provided in an embodiment of the present utility model.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Fig. 1 is a schematic view of a ceramic green drying apparatus according to an embodiment of the present utility model, the apparatus including:
the temperature sensor 101, the filtering comparison circuit 102, the filtering shaping circuit 103, the amplifying isolation circuit 104, the MCU105 and the touch display screen 106 are connected in sequence;
fig. 2 is a circuit diagram of a filter comparison circuit, a filter shaping circuit, and an amplifying isolation circuit according to an embodiment of the present utility model, where the filter comparison circuit 201 includes: the first resistor R1, the second resistor R2, the third resistor R3, the fourth resistor R4, the fifth resistor R5, the first capacitor C1, the second capacitor C2 and the first operational amplifier AR1; the output end of the temperature sensor is respectively connected with one end of the first capacitor C1, one end of the first resistor R1 and one end of the second resistor R2, the other end of the first capacitor C1 and the other end of the first resistor R1 are grounded, the other end of the second resistor R2 is respectively connected with the in-phase input end of the first operational amplifier and one end of the third resistor R3, the other end of the third resistor R3 is connected with VCC1, the inverting input end of the first operational amplifier AR1 is connected with one end of the second capacitor C2, one end of the fourth resistor R4 and one end of the fifth resistor, the other end of the second capacitor C2 and the other end of the fourth resistor R4 are grounded, and one end of the fifth resistor R5 is connected with VCC2.
When the temperature signal is a low level signal, the temperature signal enters the positive input end of the first operational amplifier AR1 after being subjected to filtering voltage division through the first capacitor C1 and the second resistor R2, and enters the inverting input end of the first operational amplifier AR1 after the reference power supply passes through the fifth resistor R5 and is subjected to filtering, the first operational amplifier AR1 compares the voltage of the non-inverting input end with the voltage of the inverting input end, and when the voltage of the non-inverting input end is smaller than the voltage of the inverting input end, the output end of the first operational amplifier AR1 is in a low level; if the temperature signal is a high level signal, the temperature signal is filtered and divided by the first capacitor C1 and the second resistor R2, then enters the non-inverting input end of the second operational amplifier AR2, and the reference power source enters the inverting input end of the second operational amplifier AR2 after passing through the fifth resistor R5 and filtering, the second operational amplifier AR2 compares the voltage of the non-inverting input end with the voltage of the inverting input end, and at this time, the voltage of the non-inverting input end is greater than the voltage of the inverting input end, so that the output end of the second operational amplifier AR2 is at a high level, and then outputs a pulse signal in phase with the input signal after passing through the comparison and filtering of the second operational amplifier AR 2.
Wherein the filter shaping circuit 202 comprises: the Schmitt trigger chip, the first diode D1, the sixth resistor R6 and the third capacitor C3; the output end of the filtering comparison circuit is respectively connected with the 1A end and the 1B end of the Schmitt trigger chip, the 1Y end of the Schmitt trigger chip is connected with the anode of the first diode D1, the cathode of the first diode D1 is respectively connected with the 2A end, the 2B end, one end of the sixth resistor R6 and one end of the third capacitor C3 of the Schmitt trigger chip, the other end of the sixth resistor R6 and the other end of the third capacitor C3 are grounded, the 2Y end of the Schmitt trigger chip is respectively connected with the 3A end and the 3B end of the Schmitt trigger chip, the 3Y end of the Schmitt trigger chip is used as an output end, and the model of the Schmitt trigger chip is HEF4093BT.
The first diode, the sixth resistor and the third capacitor form a half-wave shaping circuit. The half-wave shaping circuit is used for removing alternating negative half-wave interference signals in the signals.
Wherein the amplifying isolation circuit 203 includes: the second operational amplifier AR2, a seventh resistor R7, an eighth resistor R8, a ninth resistor R9 and a first triode T1; the output end of the filter shaping circuit is respectively connected with one end of the seventh resistor R7 and the base electrode of the first triode T1, the other end of the seventh resistor R7 is respectively connected with the collector electrode of the first triode T1 and one end of the eighth resistor R8, the other end of the eighth resistor R8 is connected with the voltage VCC3, the emitter electrode of the first triode T1 is connected with one end of the ninth resistor R9, the other end of the ninth resistor R9 is grounded, the collector electrode of the first triode T1 is connected with the non-inverting input end of the second operational amplifier AR2, the inverting input end of the second operational amplifier AR2 is connected with the output end of the second operational amplifier AR2, and the output end of the second operational amplifier AR2 is used as the output end of the amplifying isolation circuit.
The common-emitter amplifier formed by the first triode T1 is used for amplifying weak temperature signals. The second operational amplifier is a voltage follower and is used for isolating the influence between the front stage circuit and the rear stage circuit.
Wherein, MCU is the singlechip.
According to the utility model, the temperature sensor is used for collecting the drying temperature for drying the ceramic blank, the temperature signal collected by the temperature sensor is very weak, the temperature signal firstly enters the filtering and comparing circuit, the filtering and comparing circuit filters interference clutter of the temperature signal, the filtered temperature signal enters the filtering and shaping circuit, the filtering and shaping circuit is used for filtering and shaping the temperature signal to improve the anti-interference capability of the signal, the amplifying and isolating circuit is used for amplifying the weak temperature signal and isolating the influence of the preceding circuit on the MCU, and after the MCU obtains the temperature signal, the MCU can obtain a temperature value according to the temperature signal and carry out reality through the touch display screen, so that the accurate obtaining of the drying temperature of the ceramic blank by a user is facilitated.
The foregoing is merely a preferred embodiment of the present utility model, and it should be noted that modifications and substitutions can be made by those skilled in the art without departing from the technical principles of the present utility model, and these modifications and substitutions should also be considered as being within the scope of the present utility model.
Claims (4)
1. A ceramic green drying apparatus, comprising:
the temperature sensor, the filtering comparison circuit, the filtering shaping circuit, the amplifying isolation circuit, the MCU and the touch display screen are connected in sequence;
the filter comparison circuit includes: the first resistor, the second resistor, the third resistor, the fourth resistor, the fifth resistor, the first capacitor, the second capacitor and the first operational amplifier; the output end of the temperature sensor is respectively connected with one end of the first capacitor, one end of the first resistor and one end of the second resistor, the other end of the first capacitor and the other end of the first resistor are grounded, the other end of the second resistor is respectively connected with the in-phase input end of the first operational amplifier and one end of the third resistor, the other end of the third resistor is connected with VCC1, the inverting input end of the first operational amplifier is connected with one end of the second capacitor, one end of the fourth resistor and one end of the fifth resistor, the other end of the second capacitor and the other end of the fourth resistor are grounded, and one end of the fifth resistor is connected with VCC2.
2. The ceramic green drying apparatus of claim 1, wherein the filter shaping circuit comprises: the Schmitt trigger chip, the first diode, the sixth resistor and the third capacitor; the output end of the filtering comparison circuit is respectively connected with the 1A end and the 1B end of the Schmitt trigger chip, the 1Y end of the Schmitt trigger chip is connected with the anode of the first diode, the cathode of the first diode is respectively connected with the 2A end, the 2B end, one end of the sixth resistor and one end of the third capacitor of the Schmitt trigger chip, the other end of the sixth resistor and the other end of the third capacitor are grounded, the 2Y end of the Schmitt trigger chip is respectively connected with the 3A end and the 3B end of the Schmitt trigger chip, the 3Y end of the Schmitt trigger chip is used as the output end, and the model of the Schmitt trigger chip is HEF4093BT.
3. The ceramic green drying apparatus of claim 1, wherein the amplification isolation circuit comprises: the second operational amplifier, the seventh resistor, the eighth resistor, the ninth resistor and the first triode; the output end of the filter shaping circuit is respectively connected with one end of the seventh resistor and the base electrode of the first triode, the other end of the seventh resistor is respectively connected with the collector electrode of the first triode and one end of the eighth resistor, the other end of the eighth resistor is connected with the voltage VCC3, the emitter electrode of the first triode is connected with one end of the ninth resistor, the other end of the ninth resistor is grounded, the collector electrode of the first triode is connected with the in-phase input end of the second operational amplifier, the inverting input end of the second operational amplifier is connected with the output end of the second operational amplifier, and the output end of the second operational amplifier is used as the output end of the amplifying isolation circuit.
4. A ceramic green body drying apparatus according to any one of claims 1 to 3, wherein the MCU is a single chip microcomputer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320417721.7U CN219870005U (en) | 2023-03-08 | 2023-03-08 | Ceramic blank drying device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320417721.7U CN219870005U (en) | 2023-03-08 | 2023-03-08 | Ceramic blank drying device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219870005U true CN219870005U (en) | 2023-10-20 |
Family
ID=88317344
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320417721.7U Active CN219870005U (en) | 2023-03-08 | 2023-03-08 | Ceramic blank drying device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219870005U (en) |
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2023
- 2023-03-08 CN CN202320417721.7U patent/CN219870005U/en active Active
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