Putty spraying machine driven by low-voltage self-adaptive variable frequency motor

Abstract

The utility model discloses a putty spraying machine driven by a low-voltage self-adaptive variable frequency motor. The putty spraying machine comprises a support, a stirring cabin, a pressure cabin, a discharging cabin and a control module, wherein the stirring cabin and the pressure cabin are installed on the support, the discharging cabin is communicated with the stirring cabin and the pressure cabin, and the control module drives the stirring cabin, the discharging cabin and the pressure cabin. Spiral blades are arranged in the stirring cabin and the discharging cabin, a driving motor is arranged at one end of each spiral blade, a water injection cabin installed on the support is arranged on one side of the stirring cabin, the water injection cabin is communicated with the middle section of the discharging cabin through a water injection pipe, and a one-way valve is arranged at the communication position of the pressure cabin and the discharging cabin; the one-way valve comprises a spring and a baffle which are connected to an output shaft of the driving motor in a sleeving mode. The control module comprises a main power supply unit and a low-voltage power supply unit. By arranging the low-voltage power supply unit, the putty spraying machine can normally work under different voltage conditions, and particularly under the condition that the voltage is unstable, the adaptability and reliability of the spraying machine are still guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of spraying machines, in particular to a putty spraying machine driven by a low-voltage adaptive variable-frequency motor. Background Technique

[0002] In the construction industry and decoration projects, a putty spraying machine is a common tool used to evenly spray putty onto the wall surface to achieve a smooth and beautiful effect. Traditional putty spraying machines usually rely on a single power supply, lacking the adaptability to different working environments. Especially in the case of unstable power supply voltage, the performance of the spraying machine will be affected, which may lead to uneven spraying, overloading of the spraying machine, and even damage problems.

[0003] Poor voltage adaptability: Most traditional putty spraying machines are not designed with full consideration of the impact of power grid voltage fluctuations. Once the supply voltage is lower than the rated value, the performance of the spraying machine will drop significantly, and it may even fail to work properly.

[0004] Uneven material mixing: During the process of mixing putty, if the mixing is uneven, it will lead to a decline in spraying quality and affect the final decoration effect.

[0005] Low control complexity: Early putty spraying machines often adopted simple manual control methods, lacking intelligent control systems and being difficult to automatically adjust the working state according to the actual situation.

[0006] Inconvenient maintenance: Due to limitations in structural design, traditional putty spraying machines have many inconveniences in maintenance, increasing the user's usage cost.

[0007] With the development of technology and the change of market demand, users have higher and higher requirements for putty spraying machines, not only limited to the realization of basic functions, but also requiring the spraying machine to maintain a stable working state in complex working environments. Therefore, it is particularly important to develop a putty spraying machine that can still maintain good performance in a low-voltage environment. Content of the Utility Model

[0008] Purpose of the utility model: To provide a putty spraying machine driven by a low-voltage adaptive variable-frequency motor to solve the above problems existing in the prior art.

[0009] Technical solution: A putty spraying machine driven by a low-voltage adaptive variable-frequency motor includes:

[0010] A bracket, a mixing chamber and a pressure chamber installed on the bracket, a feeding chamber communicating the mixing chamber and the pressure chamber, and a control module for driving the mixing chamber, the feeding chamber and the pressure chamber;

[0011] Both the stirring chamber and the blanking chamber are provided with spiral blades. One end of the spiral blade is provided with a driving motor. One side of the stirring chamber is provided with a water injection chamber installed on the bracket. The water injection chamber is communicated with the middle section of the blanking chamber through a water injection pipe. A one-way valve is arranged at the connection between the pressure chamber and the blanking chamber; the one-way valve includes a spring and a baffle sleeve on the output shaft of the driving motor,

[0012] The control module includes a main power supply unit and a low-voltage power supply unit.

[0013] In a further embodiment, an observation port is opened at the relative position of the blanking chamber where the water injection pipe is located.

[0014] In a further embodiment, the pressure chamber is communicated with a pressure pump, and a plurality of pipe interfaces are arranged on one side of the pressure chamber.

[0015] In a further embodiment, the baffle is attached to the inner wall of the pressure chamber, one end of the spring abuts against the pressure chamber and the other end abuts against the baffle.

[0016] In a further embodiment, the main power supply unit includes a normally closed contact S1, a normally closed contact S11, a diode D1, a diode D2, a terminal block J1 and a terminal block J2. One end of the normally closed contact S1 is connected to the live wire L of the power supply, and the other end of the normally closed contact S1 is respectively connected to the positive poles of the diode D1 and the diode D2. The negative pole of the diode D1 is connected to the pin 1 of the terminal block J1, and the negative pole of the diode D2 is connected to the pin 1 of the terminal block J2. One end of the normally closed contact S11 is connected to the neutral wire N of the power supply, and the other end of the normally closed contact S11 is respectively connected to the pin 2 of the terminal block J1 and the pin 2 of the terminal block J2. The terminal block J1 is electrically connected to the driving motor, and the terminal block J2 is electrically connected to the pressure pump.

[0017] In a further embodiment, the low-voltage power supply unit includes a resistor R1, a trigger U1, a capacitor C1, a relay T1, a time delay U2, a relay T3, a potentiometer TR, a triode Q1, a diode D3, a relay T2, a normally open contact S2, a frequency converter U3, a normally closed contact S31 and a normally open contact S3. One end of the resistor R1 is connected to one end of the normally closed contact S1, and the other end of the resistor R1 is connected to the pin 3 of the trigger U1. The pins 4 and 6 of the trigger U1 are respectively connected to one end of the capacitor C1, one end of the relay T3, the emitter end of the triode Q1, the pin 2 of the frequency converter U3, one end of the relay T1, one end of the normally closed contact S11, the pin 8 and 1 of the time delay U2; the other end of the capacitor C1 is respectively connected to the pin 1 of the trigger U1 and the pin 2 of the potentiometer TR. The pins 1 and 3 of the potentiometer TR are respectively connected to the base end of the triode Q1. The pin 2 of the trigger U1 is connected to the pin 7 of the time delay U2. The pin 6 of the time delay U2 is connected to the other end of the relay T3.

[0018] In a further embodiment, pin 5 of the flip-flop U1 is connected to the other end of the relay T1, the negative terminal of the diode D3, one end of the relay T2, and one end of the normally open contact S2. The positive terminal of the diode D3 is connected to the other end of the relay T2 and the collector terminal of the triode Q1.

[0019] In a further embodiment, the other end of the normally open contact S2 is connected to pin 1 of the frequency converter U3. Pin 5 of the frequency converter U3 is connected to one end of the normally closed contact S31 and one end of the normally open contact S3. The other end of the normally closed contact S31 is connected to the negative terminal of the diode D1. The other end of the normally open contact S3 is connected to the negative terminal of the diode D2. Pin 6 of the frequency converter U3 is connected to the other end of the normally closed contact S11.

[0020] In a further embodiment, the model of the flip-flop U1 is CD4013; the model of the time delay unit U2 is 555; the model of the triode Q1 is NPN; the model of the frequency converter U3 is SD95H. When the relay T1 is energized, the normally closed contact S1 and the normally closed contact S11 are disconnected. When the relay T2 is energized, the normally open contact S2 is closed. When the relay T3 is energized, the normally closed contact S31 is disconnected and the normally open contact S3 is closed.

[0021] Beneficial effects: The present utility model discloses a putty spraying machine with a low-voltage adaptive variable-frequency motor drive. By setting up a low-voltage power supply unit, the putty spraying machine can work normally under different voltage conditions. Especially in the case of unstable voltage, the basic functions of the spraying machine can still be ensured without being affected, improving the adaptability and reliability of the spraying machine. Spiral blades are provided in both the mixing chamber and the feeding chamber and are controlled by a driving motor, enabling the putty material to be evenly mixed and smoothly conveyed to the feeding chamber, ensuring the quality and efficiency of the spraying operation. The cooperation of the spring and the baffle ensures the reliable opening and closing of the one-way valve under different working conditions. The observation port enables the operator to monitor the situation in the feeding chamber at any time, facilitating timely adjustment of operations or necessary maintenance work. The control module enables the spraying machine to automatically adjust its operating state according to the actual situation, such as the motor speed, spraying pressure, and the running speed of the motor, thus achieving more precise operation control. The design of the low-voltage power supply unit not only increases the adaptability of the spraying machine but also enables it to work effectively in a low-voltage environment. Description of the Drawings

[0022] Figure 1 is a perspective view of the present utility model.

[0023] Figure 2 is a front half-sectional schematic view of the present utility model.

[0024] Figure 3 is a front view of the present utility model.

[0025] Figure 4 This is the right view of the present utility model.

[0026] Figure 5 This is the circuit diagram of the control module of the present utility model.

[0027] The reference numerals are: 1, bracket; 2, mixing chamber; 3, feeding chamber; 4, pressure chamber; 5, water injection chamber; 21, spiral blade; 22, drive motor; 33, observation port; 41, interface; 42, pressure pump; 43, one-way valve; 51, water injection pipe. Detailed implementation manners

[0028] The present utility model relates to a putty spraying machine driven by a low-voltage adaptive variable-frequency motor. By setting a low-voltage power supply unit, the putty spraying machine can work normally under different voltage conditions. Especially when the voltage is unstable, the basic functions of the spraying machine can still be guaranteed without being affected, improving the adaptability and reliability of the spraying machine; spiral blades are provided in both the mixing chamber and the feeding chamber, and are controlled by a drive motor, so that the putty material is evenly mixed and smoothly conveyed to the feeding chamber, ensuring the quality and efficiency of the spraying operation; the following is a specific description of the solution through specific embodiments.

[0029] Referring to Figures 1-5 shown, a putty spraying machine driven by a low-voltage adaptive variable-frequency motor includes:

[0030] Bracket 1, mixing chamber 2 and pressure chamber 4 installed on the bracket 1, feeding chamber 3 communicating the mixing and pressure chambers 4, and a control module for driving the mixing chamber 2, feeding chamber 3 and pressure chamber 4; an observation port 33 is provided at the relative position of the feeding chamber 3 where the water injection pipe 51 is located. The pressure chamber 4 is communicated with a pressure pump 42, and a plurality of pipe interfaces 41 are provided on one side of the pressure chamber 4.

[0031] Spiral blades 21 are provided in both the mixing chamber 2 and the feeding chamber 3. One end of the spiral blade 21 is provided with a drive motor 22. A water injection chamber 5 installed on the bracket 1 is provided on one side of the mixing chamber 2. The water injection chamber 5 is communicated with the middle section of the feeding chamber 3 through a water injection pipe 51. A one-way valve 43 is provided at the connection between the pressure chamber 4 and the feeding chamber 3; the one-way valve 43 includes a spring and a baffle sleeved on the output shaft of the drive motor 22. The baffle is in contact with the inner wall of the pressure chamber 4, and one end of the spring abuts against the pressure chamber 4 and the other end abuts against the baffle.

[0032] The control module includes a main power supply unit and a low-voltage power supply unit.

[0033] The main power supply unit includes a normally closed contact S1, a normally closed contact S11, diodes D1, D2, terminal block J1 and terminal block J2.

[0034] One end of the normally-closed contact S1 is connected to the live wire L of the power supply. The other end of the normally-closed contact S1 is respectively connected to the positive electrode ends of the diode D1 and the diode D2. The negative electrode end of the diode D1 is connected to the pin 1 of the terminal block J1. The negative electrode end of the diode D2 is connected to the pin 1 of the terminal block J2. One end of the normally-closed contact S11 is connected to the neutral wire N of the power supply. The other end of the normally-closed contact S11 is respectively connected to the pin 2 of the terminal block J1 and the pin 2 of the terminal block J2. The terminal block J1 is electrically connected to the drive motor 22. The terminal block J2 is electrically connected to the pressure pump 42.

[0035] The low-voltage power supply unit includes a resistor R1, a trigger U1, a capacitor C1, a relay T1, a time delay unit U2, a relay T3, a potentiometer TR, a triode Q1, a diode D3, a relay T2, a normally-open contact S2, an inverter U3, a normally-closed contact S31, and a normally-open contact S3.

[0036] One end of the resistor R1 is connected to one end of the normally-closed contact S1. The other end of the resistor R1 is connected to the pin 3 of the trigger U1. The pins 4 and 6 of the trigger U1 are respectively connected to one end of the capacitor C1, one end of the relay T3, the emitter end of the triode Q1, the pin 2 of the inverter U3, one end of the relay T1, one end of the normally-closed contact S11, the pins 8 and 1 of the time delay unit U2. The other end of the capacitor C1 is respectively connected to the pin 1 of the trigger U1 and the pin 2 of the potentiometer TR. The pins 1 and 3 of the potentiometer TR are both connected to the base end of the triode Q1. The pin 2 of the trigger U1 is connected to the pin 7 of the time delay unit U2. The pin 6 of the time delay unit U2 is connected to the other end of the relay T3.

[0037] The pin 5 of the trigger U1 is respectively connected to the other end of the relay T1, the negative electrode end of the diode D3, one end of the relay T2, and one end of the normally-open contact S2. The positive electrode end of the diode D3 is respectively connected to the other end of the relay T2 and the collector end of the triode Q1.

[0038] The other end of the normally-open contact S2 is connected to the pin 1 of the inverter U3. The pin 5 of the inverter U3 is respectively connected to one end of the normally-closed contact S31 and one end of the normally-open contact S3. The other end of the normally-closed contact S31 is connected to the negative electrode end of the diode D1. The other end of the normally-open contact S3 is connected to the negative electrode end of the diode D2. The pin 6 of the inverter U3 is connected to the other end of the normally-closed contact S11.

[0039] Working principle: First, the putty is stirred in the mixing chamber 2 by the spiral blade 21 to make it evenly mixed. Then, the putty is conveyed to the pressure chamber 4 through another spiral blade 21 in the feeding chamber 3. In this process, the water injection chamber 5 adds an appropriate amount of water to the putty through the water injection pipe 51 to adjust the viscosity of the putty.

[0040] Inside the pressure chamber 4, the one-way valve 43 ensures that the putty can only flow in one direction, i.e., towards the spraying outlet direction. When the putty enters the pressure chamber 4, the pressure pump 42 transports the putty to the spray gun or nozzle through the pipeline interface 41 for spraying.

[0041] When the power supply voltage operates normally, the trigger U1 is in a non-operating state. At this time, through the conduction of the diode D1 and the diode D2, the protection circuit is protected from reverse voltage, ensuring the unidirectional flow of current. Then the terminal blocks J1 and J2 are energized, enabling the drive motor 22 and the pressure pump 42 to operate when spraying putty.

[0042] When the power supply voltage changes, the trigger U1 detects the voltage change and triggers the relay T1 to be energized according to the voltage level. At this time, the normally closed contacts S1 and S11 are disconnected, and the potentiometer TR adjusts the sensitivity of the trigger U1. Then it controls the triggering of the triode Q1. According to the conduction of the triode Q1, the relay T2 is energized, and the normally open contact S2 is controlled to close. At this time, the frequency converter U3 operates and adjusts the output frequency according to the circuit state to meet the requirements under different working conditions. The voltage output by the frequency converter U3 is transmitted to the terminal block J1 through the normally closed contact S31, while the terminal block J2 is de-energized. At this time, the drive motor 22 is in a normal operating state, while the pressure pump 42 is in a de-energized state. When the putty in the pressure chamber 4 reaches the set capacity, at this time the timer U2 makes the relay T3 energized. At this time, the normally closed contact S31 is disconnected and the normally open contact S3 is closed, and the terminal block J2 is energized, driving the pressure pump 42 to operate and the drive motor 22 to stop. When the putty in the pressure chamber 4 is lower than the set storage amount, the timer U2 stops operating. At this time, the drive motor 22 is energized and operates, thereby adaptively controlling the operation of the drive motor 22 and the pressure pump 42 under low voltage.

[0043] The preferred embodiments of the present invention have been described in detail above in conjunction with the accompanying drawings. However, the present invention is not limited to the specific details in the above embodiments. Within the technical concept scope of the present invention, various equivalent transformations can be made to the technical solutions of the present invention, and these equivalent transformations all belong to the protection scope of the present invention.

Claims

1. A putty spraying machine driven by a low-voltage adaptive variable-frequency motor, comprising: A bracket, a mixing chamber and a pressure chamber installed on the bracket, a blanking chamber communicating with the mixing and pressure chambers, and a control module for driving the mixing chamber, the blanking chamber and the pressure chamber; It is characterized in that spiral blades are provided in both the mixing chamber and the blanking chamber, a driving motor is provided at one end of the spiral blade, a water injection chamber installed on the bracket is provided on one side of the mixing chamber, the water injection chamber is communicated with the middle section of the blanking chamber through a water injection pipe, and a one-way valve is provided at the connection between the pressure chamber and the blanking chamber; the one-way valve includes a spring and a baffle sleeved on the output shaft of the driving motor, The control module includes a main power supply unit and a low-voltage power supply unit.

2. A putty spraying machine driven by a low-voltage adaptive variable-frequency motor according to claim 1, characterized in that: An observation port is provided at the relative position of the blanking chamber where the water injection pipe is located.

3. A putty spraying machine driven by a low-voltage adaptive variable-frequency motor according to claim 1, characterized in that: The pressure chamber is communicated with a pressure pump, and a plurality of pipe interfaces are provided on one side of the pressure chamber.

4. A putty spraying machine driven by a low-voltage adaptive variable-frequency motor according to claim 1, characterized in that: The baffle is attached to the inner wall of the pressure chamber, one end of the spring abuts against the pressure chamber and the other end abuts against the baffle.

5. A putty spraying machine driven by a low-voltage adaptive variable-frequency motor according to claim 1, characterized in that: The main power supply unit includes a normally closed contact S1, a normally closed contact S11, a diode D1, a diode D2, a terminal block J1 and a terminal block J2. One end of the normally closed contact S1 is connected to the live wire L of the power supply, and the other end of the normally closed contact S1 is respectively connected to the positive poles of the diode D1 and the diode D2. The negative pole of the diode D1 is connected to the pin 1 of the terminal block J1, and the negative pole of the diode D2 is connected to the pin 1 of the terminal block J2. One end of the normally closed contact S11 is connected to the neutral wire N of the power supply, and the other end of the normally closed contact S11 is respectively connected to the pin 2 of the terminal block J1 and the pin 2 of the terminal block J2. The terminal block J1 is electrically connected to the driving motor, and the terminal block J2 is electrically connected to the pressure pump.

6. The putty spraying machine driven by a low-voltage adaptive variable-frequency motor according to claim 5, wherein: The low-voltage power supply unit includes a resistor R1, a trigger U1, a capacitor C1, a relay T1, a time delay unit U2, a relay T3, a potentiometer TR, a triode Q1, a diode D3, a relay T2, a normally open contact S2, a frequency converter U3, a normally closed contact S31 and a normally open contact S3. One end of the resistor R1 is connected to one end of the normally closed contact S1, and the other end of the resistor R1 is connected to the pin 3 of the trigger U1. The pins 4 and 6 of the trigger U1 are respectively connected to one end of the capacitor C1, one end of the relay T3, the emitter end of the triode Q1, the pin 2 of the frequency converter U3, one end of the relay T1, one end of the normally closed contact S11, the pin 8 and 1 of the time delay unit U2; the other end of the capacitor C1 is respectively connected to the pin 1 of the trigger U1 and the pin 2 of the potentiometer TR. The pins 1 and 3 of the potentiometer TR are respectively connected to the base end of the triode Q1. The pin 2 of the trigger U1 is connected to the pin 7 of the time delay unit U2. The pin 6 of the time delay unit U2 is connected to the other end of the relay T3.

7. A putty spraying machine driven by a low-voltage adaptive variable-frequency motor according to claim 6, characterized in that: The pin 5 of the trigger U1 is respectively connected to the other end of the relay T1, the negative pole of the diode D3, one end of the relay T2 and one end of the normally open contact S2. The positive pole of the diode D3 is respectively connected to the other end of the relay T2 and the collector end of the triode Q1.

8. A putty spraying machine driven by a low-voltage adaptive variable-frequency motor according to claim 7, characterized in that: The other end of the normally open contact S2 is connected to pin 1 of the frequency converter U3. Pin 5 of the frequency converter U3 is connected to one end of the normally closed contact S31 and one end of the normally open contact S3. The other end of the normally closed contact S31 is connected to the negative extreme of the diode D1. The other end of the normally open contact S3 is connected to the negative extreme of the diode D2. Pin 6 of the frequency converter U3 is connected to the other end of the normally closed contact S11.

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