Brush cleaning device control panel for cigarette carton conveying chain plate of YPH13 boxing and sealing machine

Abstract

According to the brush cleaning device control panel for the cigarette carton conveying chain plate of the YPH13 boxing and sealing machine, the input end of a safety protection circuit is connected with an external power source, and the output end of the safety protection circuit is connected with a power switching circuit, an isolation output circuit and a motor in a brush cleaning device; the power conversion circuit is electrically connected with the PWM control circuit, the signal input end of the PWM control circuit is connected with the potentiometer, the signal output end of the PWM control circuit is connected with the input end of the isolation output circuit, and the output end of the isolation output circuit is connected with a motor in the brush cleaning device. And the rotating speed of the motor is controlled by a control signal output by the isolation output circuit. The motor drives the brush to clean dust on the surface of the chain plate, and the cleaning requirements under different conditions are met through speed regulation of the potentiometer. The problem that dust on a cigarette conveying chain plate of the YPH13 case packer pollutes cigarettes is solved, the abrasion speed of the chain plate and a brush is reduced, and the service life of the brush is prolonged.

Description

Technical Field

[0001] The utility model belongs to the technical field of cigarette machine packaging equipment control, and in particular relates to a brush cleaning device control panel for a cigarette conveying chain plate of a YPH13 box filling and sealing machine. Background Art

[0002] The cigarette conveying chain of the YPH13 carton sealing machine is the main process of cigarette conveying. However, during the first shift of production, it was found that there was dust on the cigarette strips on the conveying chain of the YP13H carton sealing machine, and the amount of dust was different. Analysis showed that it was caused by the unpowered brush of the conveying chain of the YP13H carton sealing machine not cleaning the conveying chain thoroughly. Therefore, in order to reduce the dust on the conveying chain of the YP13H carton sealing machine and prevent the surface contamination of the cigarette strips, a self-powered brush cleaning device was designed. However, due to the different degrees of dirtiness on the conveying chain, on the premise of thoroughly cleaning the dust on the conveying chain, in order to reduce the wear of the brush, increase the service life, and save energy and reduce consumption, it is necessary to design a control structure for controlling the rotation speed of the motor in the device. Utility Model Content

[0003] The technical problem solved by the utility model is as follows: a control board for a brush cleaning device for a cigarette conveying chain plate of a YPH13 carton filling and sealing machine is provided, a 9-36V DC power supply processed by a safety protection circuit is converted into a 5V DC power supply required by a PWM control circuit through a power conversion circuit, and an analog signal of an external potentiometer is converted into a PWM wave by the PWM control circuit to control the motor speed through an isolated output circuit, thereby realizing that the motor drives the brush to clean the dust on the surface of the chain plate, and the speed is adjusted by the potentiometer to meet the cleaning requirements in different situations, so as to solve the problem of dust on the cigarette conveying chain plate of the YPH13 carton filling and sealing machine contaminating cigarette strips, reduce the wear rate of the chain plate and the brush, and increase the service life of the brush.

[0004] The technical solution adopted by the utility model: a control board of a brush cleaning device for a cigarette conveying chain plate of a YPH13 cartoning machine, comprising a power conversion circuit, a safety protection circuit, a PWM control circuit and an isolated output circuit integrated on the circuit board, the input end of the safety protection circuit being connected to an external power supply, and the output end of the safety protection circuit being respectively connected to the power conversion circuit, the isolated output circuit and a motor in the brush cleaning device; the power conversion circuit being electrically connected to the PWM control circuit, and the input DC power supply being converted into a 5V DC power supply required by the PWM control circuit by the power conversion circuit, the signal input end of the PWM control circuit being connected to a potentiometer, and the signal output end of the PWM control circuit being connected to the input end of the isolated output circuit, and the 0-5V analog signal of the potentiometer being converted into a PWM wave required by the isolated output circuit, the output end of the isolated output circuit being connected to the motor in the brush cleaning device, and the rotation speed of the motor being controlled by a control signal output by the isolated output circuit.

[0005] Among them, the safety protection circuit includes a terminal U5 and a rectifier bridge U1, pins 1 and 2 of the terminal U5 are connected to an external power supply, pin 1 of the terminal U5 is connected to pin 4 of the rectifier bridge U1 through a self-resetting fuse U6, and pin 2 of the terminal U5 is connected to pin 3 of the rectifier bridge U1, an electrolytic capacitor C2 and a TVS tube D3 for stabilizing the circuit board voltage are connected in parallel between the output ends of pins 1 and 2 of the rectifier bridge U1, and the output end of the rectifier bridge U1 is electrically connected to the power conversion circuit and the isolation output circuit, and pins 3 and 4 of the terminal U5 are electrically connected to the motor and provide driving power for the motor.

[0006] Furthermore, the power conversion circuit includes an isolated power supply module U3 for converting an external voltage into a 5V power supply voltage. A capacitor C1 is connected in parallel between pin 1 and pin 2 of the isolated power supply module U3, and capacitor C3, capacitor C4 and TVS tube D1 are connected in parallel with pin 4 and pin 6 of the isolated power supply module U3 to stabilize the output voltage of the isolated power supply module U3. The 5V power supply output by the power conversion circuit is electrically connected to the PWM control circuit.

[0007] Furthermore, the PWM control circuit includes a chip U2 and a terminal P1, the chip U2 is connected to the output power supply of the power conversion circuit, a capacitor C5 is connected in parallel between pins 8 and 5 of the chip U2 as a decoupling capacitor to stabilize the power supply of the chip U2, pin 4 of the chip U2 is connected to terminal 2 of the terminal P1 and is used to receive a potentiometer analog signal, pin 6 of the chip U2 outputting a PWM signal is connected to the input end of the isolation output circuit, and the terminal P1 is connected to an external potentiometer.

[0008] Furthermore, the chip U2 adopts a GP9105 APC chip.

[0009] Furthermore, the isolated output circuit includes an optocoupler isolation module U4, pin 1 of the optocoupler isolation module U4 is connected to pin 6 of the chip U2 in the PWM control circuit, and pin 2 of the optocoupler isolation module U4 is connected to GND through a pull-down resistor R2; pin 4 of the optocoupler isolation module U4 is connected to the output power supply of the safety protection circuit through a pull-up resistor R4, pin 3 of the optocoupler isolation module U4 is connected to PGND through a pull-down resistor R5, and tube 3 of the optocoupler isolation module U4 drives the MOS tube Q1 through a resistor R3, the D pole of the MOS tube Q1 is connected to terminals 3 and 4 of the wiring terminal U5 in the safety protection circuit, and the SS510 Schottky diode D2 is connected in series between the D pole of the MOS tube Q1 and the output power supply of the safety protection circuit for protecting the motor.

[0010] Furthermore, the optical coupler isolation module U4 adopts an EL357N optical coupler isolation module.

[0011] The advantages of this utility model compared with the prior art:

[0012] 1. This technical solution converts the 9-36V DC power processed by the safety protection circuit into the 5V DC power required by the PWM control circuit through the power conversion circuit, and the PWM control circuit converts the analog signal of the external potentiometer into a PWM wave to control the motor speed through the isolated output circuit, so as to realize the motor-driven brush to clean the dust on the surface of the chain plate, and the potentiometer speed regulation is used to meet the cleaning needs in different situations, so as to solve the problem of dust on the conveying chain plate of the YPH13 packing and sealing machine to pollute the cigarette strips, reduce the wear speed of the chain plate and the brush, and increase the service life of the brush;

[0013] 2. This technical solution completely isolates the internal power supply voltage from the external motor drive power supply voltage through the isolation power supply module to avoid external interference;

[0014] 3. The design of the rectifier bridge in the safety protection circuit of this technical solution avoids the potential safety hazards caused by reverse connection of the power supply, and the use of a self-recovery fuse design ensures the safety of electricity use;

[0015] 4. This technical solution has a simple structure, novel design, low cost, stable and reliable motor speed control, can accept 9-36V wide power input, and has a wide range of applications. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the structure of the safety protection circuit of the utility model;

[0017] Figure 2 It is a structural schematic diagram of the power conversion circuit of the utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the PWM control circuit of the utility model;

[0019] Figure 4 It is a structural schematic diagram of the isolated output circuit of the utility model. DETAILED DESCRIPTION

[0020] The following will be combined with the embodiment of the present utility model Figure 1-4 , clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] It should be noted that, in this document, unless otherwise stated, it should be understood that the terms "center", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third", etc., are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0022] In this document, the terms "comprises", "comprising" or any other variation thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further limitations. The elements defined by the sentence "comprising a ..." do not exclude the presence of other identical elements in the process, method, article or device comprising the elements.

[0023] The YPH13 cartoning machine cigarette conveyor chain plate brush cleaning device control board includes a power conversion circuit 1, a safety protection circuit 2, a PWM control circuit 3 and an isolated output circuit 4 integrated on the circuit board. The safety protection circuit 2 has anti-reverse connection, short circuit, overcurrent and voltage stabilization protection functions. The input end of the safety protection circuit 2 is connected to an external power supply, and the output end of the safety protection circuit 2 is respectively connected to the power conversion circuit 1, the isolated output circuit 4 and the motor in the brush cleaning device; the power conversion circuit 1 is electrically connected to the PWM control circuit 3, and the power conversion circuit 1 converts the input 9-36V DC power supply into the 5V DC power supply required by the PWM control circuit 3, the signal input end of the PWM control circuit 3 is connected to the potentiometer, and the signal output end of the PWM control circuit 3 is connected to the input end of the isolated output circuit 4, and the 0-5V analog signal of the potentiometer is converted into the 1Mhz required by the isolated output circuit 4 PWM wave, the output end of the isolated output circuit 4 is connected to the motor in the brush cleaning device, and the speed of the motor is controlled by the control signal output by the isolated output circuit 4; in the above structure, the 9-36V DC power supply processed by the safety protection circuit is converted into the 5V DC power supply required by the PWM control circuit 3 by the power conversion circuit 1, and the analog signal of the external potentiometer is converted into a PWM wave by the PWM control circuit 3 to control the motor speed through the isolated output circuit 4, so as to realize the motor driving the brush to clean the dust on the surface of the chain plate, and the speed regulation by the potentiometer meets the cleaning requirements in different situations, so as to solve the problem of dust on the conveying chain plate of the YPH13 packing and sealing machine to contaminate the cigarette strips, reduce the wear speed of the chain plate and the brush, and increase the service life of the brush;

[0024] like Figure 1 As shown, the connection structure of the safety protection circuit 2 is as follows: the safety protection circuit 2 includes a wiring terminal U5 and a rectifier bridge U1, pins 1 and 2 of the wiring terminal U5 are connected to an external power supply, pin 1 of the wiring terminal U5 is connected to pin 4 of the rectifier bridge U1 through a resettable fuse U6, and pin 2 of the wiring terminal U5 is connected to pin 3 of the rectifier bridge U1, and an electrolytic capacitor C2 and a TVS tube D3 for stabilizing the circuit board voltage are connected in parallel between the output ends of pins 1 and 2 of the rectifier bridge U1, The output end of the rectifier bridge U1 is electrically connected to the power conversion circuit 1 and the isolation output circuit 4, and the pins 3 and 4 of the terminal U5 are electrically connected to the motor and provide driving power for the motor. In the above structure, the design of the rectifier bridge U1 in the safety protection circuit 2 avoids the safety hazards caused by reverse connection of the power supply, and the self-resetting fuse U6 is used to ensure the safety of electricity use; among them, the 2920L500 / 30GR self-resetting fuse U6 is used as short circuit and overcurrent protection, with a rated current of 5A and a tripping current of 10A.

[0025] like Figure 2 As shown, the specific connection structure of the power conversion circuit 1 is as follows: the power conversion circuit 1 includes an isolated power module U3 for converting an external voltage into a 5V power supply voltage, a capacitor C1 is connected in parallel between pin 1 and pin 2 of the isolated power module U3, and capacitor C3, capacitor C4 and TVS tube D1 are connected in parallel with pin 4 and pin 6 of the isolated power module U3 to stabilize the output voltage of the isolated power module U3, and the 5V power output by the power conversion circuit 1 is electrically connected to the PWM control circuit 3; the isolated power module U3 adopts the URB2405YMD-10WR3 isolated power module.

[0026] like Figure 3 As shown, the specific structure of the PWM control circuit is as follows: the PWM control circuit 3 includes a chip U2 and a terminal P1, the chip U2 is connected to the output power of the power conversion circuit 1, a capacitor C5 is connected in parallel between pins 8 and 5 of the chip U2 as a decoupling capacitor to stabilize the power supply of the chip U2, pin 4 of the chip U2 is connected to terminal 2 of the terminal P1 and is used to receive the potentiometer analog signal, pin 6 of the chip U2 outputting the PWM signal is connected to the input end of the isolation output circuit 4, and the terminal P1 is connected to the external potentiometer; specifically, the chip U2 uses the GP9105APC chip to convert the 0-5V analog signal of the external potentiometer into a 1MHz PWM wave.

[0027] like Figure 4 As shown, the isolated output circuit 4 includes an optocoupler isolation module U4, pin 1 of the optocoupler isolation module U4 is connected to pin 6 of chip U2 in the PWM control circuit 3, and pin 2 of the optocoupler isolation module U4 is connected to GND through a pull-down resistor R2; pin 4 of the optocoupler isolation module U4 is connected to the output power supply of the safety protection circuit 2 through a pull-up resistor R4, pin 3 of the optocoupler isolation module U4 is connected to PGND through a pull-down resistor R5, and tube 3 of the optocoupler isolation module U4 drives the MOS tube Q1 through a resistor R3, the D pole of the MOS tube Q1 is connected to the 3rd and 4th terminals of the wiring terminal U5 in the safety protection circuit 2, and the SS510 Schottky diode D2 is connected in series between the D pole of the MOS tube Q1 and the output power supply of the safety protection circuit 2 for protecting the motor; specifically, the optocoupler isolation module U4 adopts an EL357N optocoupler isolation module; in the above structure, the internal power supply voltage and the external motor drive power supply voltage are completely isolated by the isolation power supply module 4 to avoid external interference;

[0028] This technical solution has a simple structure, novel design, low cost, stable and reliable motor speed control, can accept 9-36V wide power input, and has a wide range of applications.

[0029] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0030] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. Control panel of brush cleaning device for cigarette conveying chain plate of YPH13 packing and sealing machine, characterized by: The invention comprises a power conversion circuit (1), a safety protection circuit (2), a PWM control circuit (3) and an isolated output circuit (4) integrated on a circuit board, wherein the input end of the safety protection circuit (2) is connected to an external power supply, and the output end of the safety protection circuit (2) is respectively connected to the power conversion circuit (1), the isolated output circuit (4) and a motor in a brush cleaning device; the power conversion circuit (1) is electrically connected to the PWM control circuit (3), and the power conversion circuit (1) converts an input DC power supply into a 5V DC power supply required by the PWM control circuit (3); the signal input end of the PWM control circuit (3) is connected to a potentiometer, and the signal output end of the PWM control circuit (3) is connected to the input end of the isolated output circuit (4), and converts a 0-5V analog signal of the potentiometer into a PWM wave required by the isolated output circuit (4); the output end of the isolated output circuit (4) is connected to the motor in the brush cleaning device, and the speed of the motor is controlled by a control signal output by the isolated output circuit (4).

2. The control panel of the brush cleaning device for the cigarette conveying chain plate of the YPH13 carton packing and sealing machine according to claim 1 is characterized by: The safety protection circuit (2) comprises a connection terminal U5 and a rectifier bridge U1, wherein pins 1 and 2 of the connection terminal U5 are connected to an external power supply, pin 1 of the connection terminal U5 is connected to pin 4 of the rectifier bridge U1 via a resettable fuse U6, and pin 2 of the connection terminal U5 is connected to pin 3 of the rectifier bridge U1, an electrolytic capacitor C2 and a TVS tube D3 for stabilizing the circuit board voltage are connected in parallel between the output ends of pins 1 and 2 of the rectifier bridge U1, and the output end of the rectifier bridge U1 is electrically connected to the power conversion circuit (1) and the isolation output circuit (4), and pins 3 and 4 of the connection terminal U5 are electrically connected to the motor and provide driving power for the motor.

3. The control panel of the brush cleaning device for the cigarette conveying chain plate of the YPH13 carton packing and sealing machine according to claim 1 is characterized by: The power conversion circuit (1) comprises an isolated power module U3 for converting an external voltage into a 5V power supply voltage. A capacitor C1 is connected in parallel between pins 1 and 2 of the isolated power module U3. The capacitor C3, capacitor C4 and TVS tube D1 are connected in parallel with pins 4 and 6 of the isolated power module U3 to stabilize the output voltage of the isolated power module U3. The 5V power output by the power conversion circuit (1) is electrically connected to the PWM control circuit (3).

4. The control panel of the brush cleaning device for the cigarette conveying chain plate of the YPH13 carton packing and sealing machine according to claim 1 is characterized by: The PWM control circuit (3) comprises a chip U2 and a wiring terminal P1. The chip U2 is connected to the output power of the power conversion circuit (1). A capacitor C5 is connected in parallel between pins 8 and 5 of the chip U2 as a decoupling capacitor to stabilize the power supply of the chip U2. Pin 4 of the chip U2 is connected to terminal 2 of the wiring terminal P1 and is used to receive a potentiometer analog signal. Pin 6 of the chip U2 outputting a PWM signal is connected to an input end of the isolation output circuit (4). The wiring terminal P1 is connected to an external potentiometer.

5. The control panel of the brush cleaning device for the cigarette conveying chain plate of the YPH13 carton packing and sealing machine according to claim 4 is characterized by: The chip U2 adopts the GP9105 APC chip.

6. The control panel of the brush cleaning device for the cigarette conveying chain plate of the YPH13 carton packing and sealing machine according to any one of claims 1 to 5, characterized in that: The isolated output circuit (4) comprises an optocoupler isolation module U4, wherein pin 1 of the optocoupler isolation module U4 is connected to pin 6 of chip U2 in the PWM control circuit (3), and pin 2 of the optocoupler isolation module U4 is connected to GND via a pull-down resistor R2; pin 4 of the optocoupler isolation module U4 is connected to the output power supply of the safety protection circuit (2) via a pull-up resistor R4, pin 3 of the optocoupler isolation module U4 is connected to PGND via a pull-down resistor R5, and tube 3 of the optocoupler isolation module U4 drives MOS tube Q1 via a resistor R3, the D pole of the MOS tube Q1 is connected to terminals 3 and 4 of the wiring terminal U5 in the safety protection circuit (2), and an SS510 Schottky diode D2 is connected in series between the D pole of the MOS tube Q1 and the output power supply of the safety protection circuit (2) for protecting the motor.

7. The control panel of the brush cleaning device for the cigarette conveying chain plate of the YPH13 carton packing and sealing machine according to claim 6, characterized in that: The optical coupler isolation module U4 adopts an EL357N optical coupler isolation module.

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