Motor self-adjusting control circuit and stamper machine

Abstract

The utility model relates to the technical field of circuits, in particular to a motor self-adjusting control circuit and a stamper machine, and the motor self-adjusting control circuit comprises a single-chip microcomputer, an infrared geminate transistor, a stamper motor driving chip and a two-phase stepping motor. A first UART (Universal Asynchronous Receiver / Transmitter) interface of the singlechip is connected with an infrared geminate transistor, a first GPIO (General Purpose Input / Output) interface of the singlechip is connected with an input end of a seal motor driving chip, an output end of the seal motor driving chip is connected with a two-phase stepping motor, and the two-phase stepping motor is connected with one end of a seal; infrared photoelectric signals are detected through the infrared geminate transistors, pulse signals are output to the seal motor driving chip after the single-chip microcomputer receives the infrared photoelectric signals fed back by the infrared geminate transistors, and the rotation angle of the two-phase stepping motor is controlled through the seal motor driving chip, so that the number of rotation turns of the lead screw in the two-phase stepping motor is adjusted, and the seal is achieved. The purpose of controlling the height of the seal is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to circuit technical field especially relates to a motor self -adjusting control circuit and seal machine. BACKGROUND

[0002] In the related art, the stepping motor rotates the screw rod transmission to adjust the active position of the seal, and the mechanical switch is used to detect whether the seal is in place, but the mechanical switch is deformed due to the service life and stress, and the original position cannot be correctly adjusted, so that the mechanism switch cannot achieve the protection of the seal. UTILITY MODEL CONTENTS

[0003] Therefore, the motor self-adjusting control circuit and the seal machine are provided to solve one or more technical problems in the prior art and provide at least one beneficial option or create conditions.

[0004] In one aspect, the utility model embodiment provides a motor self-adjusting control circuit applied to a seal machine, which comprises a single-chip microcomputer, an infrared pair tube, a seal motor drive chip and a two-phase stepping motor.

[0005] The first UART interface of the single-chip microcomputer is connected with the infrared pair tube, the first GPIO interface of the single-chip microcomputer is connected with the input end of the seal motor drive chip, the output end of the seal motor drive chip is connected with the two-phase stepping motor, one end of the two-phase stepping motor is connected with the seal, and the seal is arranged in the seal machine; the infrared pair tube is arranged on the seal machine and is flush with the other end of the seal when the other end of the seal extends to the maximum displacement.

[0006] After the single-chip microcomputer detects the infrared photoelectric signal output by the infrared pair tube through the first UART interface, the single-chip microcomputer outputs a pulse signal to the seal motor drive chip through the first GPIO interface, and the seal motor drive chip controls the rotation of the two-phase stepping motor according to the pulse signal to adjust the rising or falling of the seal.

[0007] Optionally, the motor self-adjusting control circuit further comprises a first direct current conversion circuit, the input end of the first direct current conversion circuit is connected with the second UART interface of the single-chip microcomputer, and the output end of the first direct current conversion circuit is connected with the power input end of the seal motor drive chip.

[0008] After the single-chip microcomputer detects the infrared photoelectric signal output by the infrared pair tube through the first UART interface, the single-chip microcomputer outputs an enable signal to the first direct current conversion circuit through the second UART interface, and the first direct current conversion circuit converts the voltage of the direct current power supply into a first direct current power supply and supplies power to the seal motor drive chip.

[0009] Optionally, the motor self-adjusting control circuit further comprises a seal motor driving chip, an input end of the seal motor driving chip being connected with a second GPIO interface of the single-chip microcomputer, and an output end of the seal motor driving chip being connected with the two-phase stepping motor.

[0010] After the single-chip microcomputer detects the seal returning signal through the first UART interface, the single-chip microcomputer outputs a seal signal to the seal motor driving chip through the second GPIO interface, and the seal motor driving chip controls the two-phase stepping motor to stop rotating according to the seal signal.

[0011] Optionally, the motor self-adjusting control circuit further comprises a maintenance door motor driving chip, an input end of the maintenance door motor driving chip being connected with a third GPIO interface of the single-chip microcomputer, and an output end of the maintenance door motor driving chip being connected with the two-phase stepping motor.

[0012] The single-chip microcomputer outputs an anti-disassembly detection signal to the maintenance door motor driving chip through the third GPIO interface, and the maintenance door motor driving chip controls the two-phase stepping motor to stop rotating according to the anti-disassembly detection signal.

[0013] Optionally, the motor self-adjusting control circuit further comprises a second direct current conversion circuit, an input end of the second direct current conversion circuit being connected with a third UART interface of the single-chip microcomputer, and output ends of the second direct current conversion circuit being respectively connected with a power input end of the seal motor driving chip and a power input end of the maintenance door motor driving chip.

[0014] After the single-chip microcomputer detects the infrared photoelectric signal output by the infrared pair tube through the first UART interface, the single-chip microcomputer outputs an enable signal to the second direct current conversion circuit through the third UART interface, and the second direct current conversion circuit converts the voltage of the direct current power supply end into a second direct current power supply, and then supplies power to the seal motor driving chip and the maintenance door motor driving chip respectively.

[0015] Optionally, the model of the seal motor driving chip is HR4988E.

[0016] Optionally, the first direct current conversion circuit comprises a first direct current conversion chip, and the model of the first direct current conversion chip is FP6293XR.

[0017] Optionally, the models of the seal motor driving chip and the maintenance door motor driving chip are both DRV8837DSGR.

[0018] Optionally, the second direct current conversion circuit comprises a second direct current conversion chip, and the model of the second direct current conversion chip is TPS61023DRLR.

[0019] In another aspect, the utility model provides a seal machine, comprising: a shell, a seal located in the shell, and the motor self-adjusting control circuit of any one of the above.

[0020] The utility model discloses an embodiment includes following beneficial effect: the utility model provides a kind of motor self-adjusting control circuit and seal machine, infrared pair tube detects infrared photoelectric signal, after single-chip microcontroller receives the infrared photoelectric signal of infrared pair tube feedback, pulse signal is output to seal motor drive chip, the rotation angle of two-phase stepper motor is controlled by seal motor drive chip, to adjust the rotation number of screw rod in two-phase stepper motor, reach the purpose of controlling seal height. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the technical scheme in the embodiments of the present utility model or prior art, the drawings needed to be used in the embodiments will be briefly introduced as follows, obviously, the drawings in the following description are only some embodiments of the present utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without creative labor.

[0022] Figure 1 The principle diagram of the motor self-adjusting control circuit provided by an embodiment. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical scheme and advantages of the present utility model more clearly, the present utility model will be further described in detail below by combining with drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model, and are not used to limit the present utility model.

[0024] It should be noted that, although functional module division is carried out in the schematic diagram, and logical order is shown in the flow chart, in some cases, steps shown or described can be executed in different order from the order shown in the flow chart or the module division of the schematic diagram. The terms "first", "second" and the like in the specification and claims and the above drawings are used to distinguish similar objects, and do not necessarily describe a specific order or sequence.

[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the present utility model belongs. The terms used herein are only for the purpose of describing the embodiments of the present utility model, and are not intended to limit the present utility model.

[0026] Furthermore, the described features, structures, or characteristics can be combined in any suitable manner in one or more embodiments. Numerous specific details are provided in the following description to give a full understanding of embodiments of the present invention. However, those skilled in the art will recognize that the technical solutions of the present invention can be practiced without one or more of the specific details, or other methods, components, steps, etc., can be employed. In other instances, well-known methods, implementations, or operations are not shown or described in detail to avoid obscuring various aspects of the present invention.

[0027] like Figure 1 As shown, the present invention provides a motor self-adjustment control circuit, which is applied to a stamp machine. The motor self-adjustment control circuit includes a microcontroller 100, an infrared phototransistor 200, a stamp motor driver chip 300, and a two-phase stepper motor 400.

[0028] The first UART interface of the microcontroller 100 is connected to the infrared phototransistor 200, the first GPIO interface of the microcontroller 100 is connected to the input terminal of the stamp motor driver chip 300, the output terminal of the stamp motor driver chip 300 is connected to the two-phase stepper motor 400, the two-phase stepper motor 400 is connected to one end of the stamp, and the stamp is disposed inside the stamping machine; the infrared phototransistor 200 is disposed on the stamping machine and is flush with the other end of the stamp when it is fully extended to its maximum displacement;

[0029] After the microcontroller 100 detects the infrared photoelectric signal output by the infrared phototransistor 200 through the first UART interface, it outputs a pulse signal to the stamp motor driver chip 300 through the first GPIO interface. The stamp motor driver chip 300 controls the rotation of the two-phase stepper motor 400 according to the pulse signal to adjust the stamp to rise or fall.

[0030] It should be noted that the UART interface (Universal Asynchronous Receiver / Transmitter) is a commonly used asynchronous serial communication interface; the two-phase stepper motor 400 is a motor that drives the rotor to move through electrical pulse signals. Its working principle is based on the interaction of electromagnetic induction and magnetic fields. The motor consists of a stator and a rotor. The stator contains two coils (phases), each located at a different position in the motor. When the stator coils are energized, a magnetic field is generated. This magnetic field interacts with the magnetic poles on the rotor, causing the rotor to rotate under the force. By controlling the energizing sequence and current magnitude of different coils, precise control and stepping motion of the rotor can be achieved.

[0031] In related technologies, due to structural reasons, conventional type switches cannot be selected. Spring-type switches have problems such as difficult installation and excessive size, and prolonged pressing can lead to poor contact.

[0032] The utility model uses infrared pair pipe 200 output, has small, reaction sensitive etc, as the conventional spring type switch is replaced, uses 4 line two phase stepping motor 400, through controlling two phase stepping motor 400 in hybrid attenuation mode operation, not only reduce the noise that two phase stepping motor 400 generates when working, still increase the stepping accuracy, reduce the power consumption simultaneously.

[0033] When there is an article shielding infrared pair pipe 200, infrared photoelectric signal is interrupted and there is no current state, when there is no article shielding, when the internal crystal diode detects that there is infrared photoelectric signal, it is judged that there is current, enters normal working state. After singlechip 100 receives the feedback infrared photoelectric signal, pulse signal is output to seal motor drive chip 300, and the rotation angle of two phase stepping motor 400 is controlled through seal motor drive chip 300, so as to adjust the rotation number of lead screw, and the purpose of controlling seal height is achieved.

[0034] In the embodiment, the running of the 4-wire two-phase stepping motor 400 is controlled by using the infrared pair pipe 200 switch mode, which is more intuitive and convenient for later maintenance, and the volume is smaller, saving the occupied place.

[0035] In some embodiments, the motor self-adjusting control circuit further comprises a first DC conversion circuit 500, the input end of the first DC conversion circuit 500 is connected to the second UART interface of the singlechip 100, and the output end is connected to the power input end of the seal motor drive chip 300.

[0036] After the singlechip 100 detects the infrared photoelectric signal output by the infrared pair pipe 200 through the first UART interface, an enable signal is output to the first DC conversion circuit 500 through the second UART interface, and the first DC conversion circuit 500 converts the voltage of the DC power supply end into a first DC power supply to power the seal motor drive chip 300.

[0037] In the embodiment, the precise voltage regulation function of the first DC conversion circuit 500 ensures the stable operation of the motor drive chip, and further improves the overall reliability and response speed of the system.

[0038] In some embodiments, the motor self-adjusting control circuit further comprises a lock seal motor drive chip 600, the input end of the lock seal motor drive chip 600 is connected to the second GPIO interface of the singlechip 100, and the output end is connected to the two-phase stepping motor 400.

[0039] The single-chip microcomputer 100 outputs a seal locking signal to the seal motor driving chip 300 through the second GPIO interface after detecting the seal homing signal through the first UART interface, and the seal motor driving chip 600 controls the two-phase stepping motor 400 to stop rotating according to the seal locking signal.

[0040] In the embodiment, the precise control of the seal motor driving chip 600 ensures that the seal is stably locked after homing, avoids misoperation, and further improves the safety and stability of the system.

[0041] In some embodiments, the motor self-adjusting control circuit further comprises a maintenance door motor driving chip 700, the input end of the maintenance door motor driving chip 700 is connected to the third GPIO interface of the single-chip microcomputer 100, and the output end is connected to the two-phase stepping motor 400.

[0042] The single-chip microcomputer 100 outputs an anti-disassembly detection signal to the maintenance door motor driving chip 700 through the third GPIO interface, and the maintenance door motor driving chip 700 controls the two-phase stepping motor 400 to stop rotating according to the anti-disassembly detection signal.

[0043] In the embodiment, the precise control of the maintenance door motor driving chip 700 ensures that the equipment is safely locked in the maintenance state, prevents illegal disassembly, and further enhances the overall protection capability and use safety of the system.

[0044] In some embodiments, the motor self-adjusting control circuit further comprises a second DC conversion circuit 800, the input end of the second DC conversion circuit 800 is connected to the third UART interface of the single-chip microcomputer 100, and the output end is respectively connected to the power input end of the seal motor driving chip 600 and the power input end of the maintenance door motor driving chip 700.

[0045] The single-chip microcomputer 100 outputs an enable signal to the second DC conversion circuit 800 through the third UART interface after detecting the infrared photoelectric signal output by the infrared pair tube 200, and the second DC conversion circuit 800 converts the voltage of the DC power supply end into a second DC power supply and respectively supplies power to the seal motor driving chip 600 and the maintenance door motor driving chip 700.

[0046] In the embodiment, the precise voltage regulation of the second DC conversion circuit 800 ensures the stable operation of the seal motor driving chip 600 and the maintenance door motor driving chip 700, further improves the overall response speed and reliability of the system, guarantees the stability and safety of the equipment in various working states, and effectively prolongs the service life of the equipment.

[0047] In some embodiments, the model of the seal motor driving chip 300 is HR4988E.

[0048] The HR4988E chip used in this embodiment has high-precision current control function, which can effectively reduce the energy consumption of the motor during operation and improve the efficiency. The built-in protection mechanism can prevent overheating and overcurrent, ensure long-term stable operation of the motor, and further enhance the reliability and durability of the system.

[0049] In some embodiments, the first DC conversion circuit 500 includes a first DC conversion chip, and the model of the first DC conversion chip is FP6293XR.

[0050] The FP6293XR chip used in this embodiment has high-efficiency voltage conversion characteristics, ensuring stable power output and reducing energy consumption. Its multiple protection functions effectively prevent short circuits and overloads, improving the reliability and safety of the circuit and further ensuring the long-term stable operation of the system.

[0051] In some embodiments, the models of the seal motor driving chip 600 and the maintenance door motor driving chip 700 are both DRV8837DSGR.

[0052] The DRV8837DSGR chip used in this embodiment has low power consumption and high efficiency characteristics, and has built-in overcurrent protection function to ensure stable and reliable motor driving. Its compact design facilitates integration, improves the overall performance of the system, and further optimizes the adaptability of the equipment in different environments, prolonging the service life.

[0053] In some embodiments, the second DC conversion circuit 800 includes a second DC conversion chip, and the model of the second DC conversion chip is TPS61023DRLR.

[0054] The TPS61023DRLR chip used in this embodiment has high-efficiency boost conversion capability, ensuring stable and efficient power supply. Its advanced protection mechanism effectively avoids overvoltage and undervoltage, improving the stability and safety of the circuit, and further enhancing the adaptability and durability of the system in various complex environments.

[0055] The utility model embodiment further provides a seal machine, which comprises a shell, a seal located in the shell, and a motor self-adjusting control circuit according to any one of the above embodiments.

[0056] The motor self-adjusting control circuit has the characteristics of small size and sensitive reaction, and can be arranged in the shell of the seal machine.

[0057] The terms "first", "second", "third", "fourth" and the like in the description and in the claims of the utility model, if any, are used for distinguishing similar objects, and are not necessarily used to describe a particular sequential or chronological order. It is to be understood that the data thus designated can be interchanged, where appropriate, so that the embodiments of the utility model described herein can be carried out in a different order than the one described here. In addition, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units does not necessarily have to be limited to those steps or units clearly listed, but can include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0058] It should be understood that in the utility model, "at least one" means one or more, and "multiple" means two or more. "And / or" is used to describe the association between the associated objects, which means that there can be three relationships, for example, "A and / or B" can mean that there are three cases of only A, only B and A and B at the same time, where A and B can be singular or plural. The character " / " generally represents an "or" relationship between the associated objects. "At least one of the following" or similar expressions means any combination of these items, including any combination of single or multiple items. For example, at least one of a, b or c can mean: a, b, c, "a and b", "a and c", "b and c", or "a and b and c", where a, b and c can be single or multiple.

[0059] In several embodiments provided by the utility model, it should be understood that the disclosed devices and methods can be implemented in other ways. For example, the device embodiments described above are only illustrative, for example, the division of the units is only a logical function division, and actual implementation can have another division manner, for example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the coupling or direct coupling or communication connection between the displayed or discussed objects can be indirect coupling or communication connection through some interfaces, devices or units, and can be electrical, mechanical or other forms.

[0060] The units described as separate components may or may not be physically separate, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may also be distributed to multiple network units. Part or all of the units can be selected to achieve the purpose of the embodiment of the present application.

[0061] The preferred embodiments of the embodiments of the present application are described above with reference to the accompanying drawings, and the scope of the embodiments of the present application is not limited by this. Any modification, equivalent replacement and improvement made by those skilled in the art within the scope and essence of the embodiments of the present application shall be within the scope of the embodiments of the present application.

Claims

1. A motor self-adjusting control circuit applied to a stamping machine, characterized in that, The motor self-adjusting control circuit comprises a single-chip microcomputer, an infrared pair tube, a seal motor driving chip and a two-phase stepping motor. The first UART interface of the single-chip microcomputer is connected with the infrared pair tube, the first GPIO interface of the single-chip microcomputer is connected with the input end of the seal motor driving chip, the output end of the seal motor driving chip is connected with the two-phase stepping motor, one end of the two-phase stepping motor is connected with a seal, and the seal is arranged in the interior of the seal machine. After the single-chip microcomputer detects the infrared photoelectric signal output by the infrared pair tube through the first UART interface, the single-chip microcomputer outputs a pulse signal to the seal motor driving chip through the first GPIO interface, and the seal motor driving chip controls the rotation of the two-phase stepping motor according to the pulse signal to adjust the rising or falling of the seal.

2. The motor self-tuning control circuit of claim 1, wherein, The motor self-adjusting control circuit further comprises a first direct current conversion circuit, the input end of the first direct current conversion circuit is connected with the second UART interface of the single-chip microcomputer, and the output end of the first direct current conversion circuit is connected with the power input end of the seal motor driving chip. After the single-chip microcomputer detects the infrared photoelectric signal output by the infrared pair tube through the first UART interface, the single-chip microcomputer outputs an enable signal to the first direct current conversion circuit through the second UART interface, and the first direct current conversion circuit converts the voltage of the direct current power supply end into a first direct current power supply to supply power to the seal motor driving chip.

3. The motor self-tuning control circuit of claim 1, wherein, The motor self-adjusting control circuit further comprises a seal locking motor driving chip, the input end of the seal locking motor driving chip is connected with the second GPIO interface of the single-chip microcomputer, and the output end of the seal locking motor driving chip is connected with the two-phase stepping motor. After the single-chip microcomputer detects the seal homing signal through the first UART interface, the single-chip microcomputer outputs a seal locking signal to the seal motor driving chip through the second GPIO interface, and the seal locking motor driving chip controls the two-phase stepping motor to stop rotating according to the seal locking signal.

4. The motor self-tuning control circuit of claim 3, wherein, The motor self-adjusting control circuit further comprises a maintenance door motor driving chip, the input end of the maintenance door motor driving chip is connected with the third GPIO interface of the single-chip microcomputer, and the output end of the maintenance door motor driving chip is connected with the two-phase stepping motor. The single-chip microcomputer outputs an anti-disassembly detection signal to the maintenance door motor driving chip through the third GPIO interface, and the maintenance door motor driving chip controls the two-phase stepping motor to stop rotating according to the anti-disassembly detection signal.

5. The motor self-tuning control circuit of claim 4, wherein, The motor self-adjusting control circuit further comprises a second direct current conversion circuit, the input end of the second direct current conversion circuit is connected with the third UART interface of the single-chip microcomputer, and the output end of the second direct current conversion circuit is connected with the power input end of the seal locking motor driving chip and the power input end of the maintenance door motor driving chip respectively. After the single-chip microcomputer detects the infrared photoelectric signal output by the infrared pair tube through the first UART interface, the single-chip microcomputer outputs an enable signal to the second direct current conversion circuit through the third UART interface, and the second direct current conversion circuit converts the voltage of the direct current power supply end into a second direct current power supply to supply power to the seal locking motor driving chip and the maintenance door motor driving chip respectively.

6. The motor self-tuning control circuit of claim 1, wherein, The model of the seal motor driving chip is HR4988E.

7. The motor self-tuning control circuit of claim 2, wherein, The first direct current conversion circuit comprises a first direct current conversion chip, and the model of the first direct current conversion chip is FP6293XR.

8. The motor self-tuning control circuit of claim 4, wherein, The model of the lock chapter motor drive chip and the maintenance door motor drive chip is DRV8837DSGR.

9. The motor self-tuning control circuit of claim 5, wherein, The second direct current conversion circuit comprises a second direct current conversion chip, and the model of the second direct current conversion chip is TPS61023DRLR.

10. A stamping machine characterized by, Comprise: A shell, a seal located in the shell, and the motor self-adjusting control circuit according to any one of claims 1 to 9.

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