Multi-motor control circuit of full-automatic binding machine and control method of multi-motor control circuit

Abstract

The invention discloses a multi-motor control circuit of a full-automatic binding machine and a control method of the multi-motor control circuit. The multi-motor control circuit comprises a single-chip microcomputer module, a motor driving module and a half-bridge circuit module. Pulse width modulation signals and high and low level signals are respectively input to a high-side input end and a low-side input end of the motor driving module through the single-chip microcomputer module. The motor driving module controls a bridge arm composed of multiple sets of MOS tubes of the half-bridge circuit module according to the pulse width modulation signals and the high-low level signals, then forward and reverse rotation of motors is controlled, full-automatic punching and binding of the financial binding machine are achieved, manual auxiliary operation is not needed in the process of controlling a single motor to conduct punching and binding, and the working efficiency of the financial binding machine is improved. And the binding efficiency is effectively improved, and the cost is reduced. According to the technical scheme provided by the embodiment of the invention, the problems of low efficiency, more occupied hardware resources and high cost in the prior art are solved.

Description

Technical Field

[0001] The present invention relates to the technical field of binding equipment, and in particular to a multi-motor control circuit of a full-automatic binding machine and a control method thereof. Background Art

[0002] A binding machine is a device used to bind printed materials such as books and magazines. Its technical background can be traced back to the development of automation technology combined with traditional craftsmanship.

[0003] Currently available binding machines are usually controlled by a motor driver chip, and manual assistance is required in the process of controlling the single motor for punching and binding, which has the problems of low efficiency, large hardware resource occupation and high cost. Summary of the invention

[0004] The present invention provides a multi-motor control circuit and a control method for a fully automatic binding machine, so as to solve the problems in the prior art that one motor is controlled by one motor driving chip, manual auxiliary operation is required in the process of controlling a single motor for punching and binding, and the like, resulting in low efficiency, large occupation of hardware resources and high cost.

[0005] According to one aspect of the present invention, a multi-motor control circuit of a fully automatic binding machine is provided, comprising: a single-chip computer module, a motor drive module and a half-bridge circuit module; the motor drive module comprises a plurality of motor drive circuits, each of which comprises a plurality of high-side input terminals, a low-side input terminal, a high-side output terminal and a low-side output terminal; the half-bridge circuit module comprises a plurality of MOS tubes;

[0006] The single chip computer module is connected to the motor driving module, and the motor driving module is connected to the half-bridge circuit module;

[0007] The single chip microcomputer module is used to input a pulse width modulation signal and a high and low level signal to the high side input terminal and the low side input terminal of the motor driving module respectively;

[0008] The high-side output end of the motor driving module outputs the pulse width modulation signal to the gate of the MOS tube of the upper half bridge of the half-bridge circuit module, and the low-side output end of the motor driving module outputs the high and low level signals to the gate of the MOS tube of the lower half bridge of the half-bridge circuit module;

[0009] The motor driving module is used to control the forward and reverse rotation of each of the motors according to the pulse width modulation signal and the high and low level signals.

[0010] Optionally, the motor drive module includes a first motor drive circuit; the first motor drive circuit includes a first high-side input terminal, a second high-side input terminal, a third high-side input terminal, a first low-side input terminal, a second low-side input terminal, a third low-side input terminal, a first high-side output terminal, a second high-side output terminal, a third high-side output terminal, a first low-side output terminal, a second low-side output terminal and a third low-side output terminal;

[0011] The single-chip microcomputer module is used to input a pulse width modulation signal and a high and low level signal to the high-side input terminal and the low-side input terminal of the motor driving module respectively, including:

[0012] The single chip microcomputer module inputs a first pulse width modulation signal, a second pulse width modulation signal and a third pulse width modulation signal to the first high side input terminal, the second high side input terminal and the third high side input terminal of the first motor driving circuit respectively;

[0013] The single chip microcomputer module inputs a first high-low level signal, a second high-low level signal and a third high-low level signal to the first low-side input terminal, the second low-side input terminal and the third low-side input terminal of the first motor driving circuit respectively.

[0014] Optionally, the half-bridge circuit module includes a first MOS tube, a second MOS tube, a third MOS tube, a fourth MOS tube, a fifth MOS tube and a sixth MOS tube;

[0015] The high-side output end of the motor driving module outputs the pulse width modulation signal to the gate of the MOS tube of the upper half bridge of the half-bridge circuit module, and the low-side output end of the motor driving module outputs the high and low level signals to the gate of the MOS tube of the lower half bridge of the half-bridge circuit module, including:

[0016] The first high-side output terminal, the second high-side output terminal and the third high-side output terminal respectively output a first pulse width modulation signal, a second pulse width modulation signal and a third pulse width modulation signal to the gates of the first MOS transistor, the third MOS transistor and the fifth MOS transistor;

[0017] The first low-side output terminal, the second low-side output terminal and the third low-side output terminal respectively output a first high-low level signal, a second high-low level signal and a third high-low level signal to the gates of the second MOS tube, the fourth MOS tube and the sixth MOS tube.

[0018] Optionally, the motor drive module further includes a second motor drive circuit; the second motor drive circuit includes a fourth high-side input terminal, a fifth high-side input terminal, a sixth high-side input terminal, a fourth low-side input terminal, a fifth low-side input terminal, a sixth low-side input terminal, a fourth high-side output terminal, a fifth high-side output terminal, a sixth high-side output terminal, a fourth low-side output terminal, a fifth low-side output terminal and a sixth low-side output terminal;

[0019] The single chip microcomputer module is used to input a pulse width modulation signal and a high and low level signal to the high side input terminal and the low side input terminal of the motor driving module respectively, including:

[0020] The single chip microcomputer module is used to input a fourth pulse width modulation signal, a fifth pulse width modulation signal and a sixth pulse width modulation signal to the fourth high side input terminal, the fifth high side input terminal and the sixth high side input terminal of the second motor driving circuit respectively;

[0021] The single chip microcomputer module inputs a fourth high and low level signal, a fifth high and low level signal and a sixth high and low level signal to the fourth low side input terminal, the fifth low side input terminal and the sixth low side input terminal of the second motor driving circuit respectively.

[0022] Optionally, the half-bridge circuit module includes a seventh MOS tube, an eighth MOS tube, a ninth MOS tube, a tenth MOS tube, an eleventh MOS tube and a twelfth MOS tube;

[0023] The high-side output end of the motor driving module outputs the pulse width modulation signal to the gate of the MOS tube of the upper half bridge of the half-bridge circuit module, and the low-side output end of the motor driving module outputs the high and low level signals to the gate of the MOS tube of the lower half bridge of the half-bridge circuit module, including:

[0024] The fourth high-side output terminal, the fifth high-side output terminal and the sixth high-side output terminal are used to output the fourth pulse width modulation signal, the fifth pulse width modulation signal and the sixth pulse width modulation signal to the gates of the seventh MOS tube, the ninth MOS tube and the eleventh MOS tube respectively;

[0025] The fourth low-side output terminal, the fifth low-side output terminal and the sixth low-side output terminal are respectively used to output a fourth high-low level signal, a fifth high-low level signal and a sixth high-low level signal to the gates of the eighth MOS tube, the tenth MOS tube and the twelfth MOS tube.

[0026] Optionally, the motor drive module further includes a third motor drive circuit; the third motor drive circuit includes a seventh high-side input terminal, an eighth high-side input terminal, a ninth high-side input terminal, a seventh low-side input terminal, an eighth low-side input terminal, a ninth low-side input terminal, a seventh high-side output terminal, an eighth high-side output terminal, a ninth high-side output terminal, a seventh low-side output terminal, an eighth low-side output terminal and a ninth low-side output terminal;

[0027] The single chip microcomputer module is used to input a pulse width modulation signal and a high and low level signal to the high side input terminal and the low side input terminal of the motor driving module respectively, including:

[0028] The single-chip microcomputer module is used to input a seventh pulse width modulation signal, an eighth pulse width modulation signal and a ninth pulse width modulation signal to the seventh high-side input terminal, the eighth high-side input terminal and the ninth high-side input terminal of the third motor driving circuit respectively;

[0029] The single chip microcomputer module inputs a seventh high-low level signal, an eighth high-low level signal and a ninth high-low level signal to the seventh low-side input terminal, the eighth low-side input terminal and the ninth low-side input terminal of the third motor driving circuit respectively.

[0030] Optionally, the half-bridge circuit module includes a thirteenth MOS tube, a fourteenth MOS tube, a fifteenth MOS tube, a sixteenth MOS tube, a seventeenth MOS tube and an eighteenth MOS tube;

[0031] The high-side output end of the motor driving module outputs the pulse width modulation signal to the gate of the MOS tube of the upper half bridge of the half-bridge circuit module, and the low-side output end of the motor driving module outputs the high and low level signals to the gate of the MOS tube of the lower half bridge of the half-bridge circuit module, including:

[0032] The seventh high-side output terminal, the eighth high-side output terminal and the ninth high-side output terminal are used to output the seventh pulse width modulation signal, the eighth pulse width modulation signal and the ninth pulse width modulation signal to the gates of the thirteenth MOS tube, the fifteenth MOS tube and the seventeenth MOS tube respectively;

[0033] The seventh low-side output terminal, the eighth low-side output terminal and the ninth low-side output terminal are respectively used to output the seventh high-low level signal, the eighth high-low level signal and the ninth high-low level signal to the gates of the fourteenth MOS tube, the sixteenth MOS tube and the eighteenth MOS tube.

[0034] Optionally, a common point formed by the source of the first MOS tube and the drain of the second MOS tube is the first control point;

[0035] A common point formed by the source of the third MOS tube and the drain of the fourth MOS tube is a second control point;

[0036] A common point formed by the source of the fifth MOS tube and the drain of the sixth MOS tube is a third control point;

[0037] A common point formed by the source of the seventh MOS tube and the drain of the eighth MOS tube is a fourth control point;

[0038] A common point formed by the source of the ninth MOS tube and the drain of the tenth MOS tube is a fifth control point;

[0039] A common point formed by the source of the eleventh MOS tube and the drain of the twelfth MOS tube is a sixth control point;

[0040] A common point formed by the source of the thirteenth MOS tube and the drain of the fourteenth MOS tube is a seventh control point;

[0041] The common point formed by the source of the fifteenth MOS tube and the drain of the sixteenth MOS tube is the eighth control point;

[0042] A common point formed by the source of the seventeenth MOS tube and the drain of the eighteenth MOS tube is a ninth control point.

[0043] Optionally, the first control point and the fifth control point constitute a motor control output point of the paper press of the fully automatic binding machine;

[0044] The fifth control point and the seventh control point constitute the tube cutting motor control output point of the full-automatic binding machine;

[0045] The sixth control point and the ninth control point constitute the cycloid motor control output point of the full-automatic binding machine;

[0046] The sixth control point and the second control point constitute the control output point of the riveting motor of the full-automatic binding machine;

[0047] The fourth control point and the third control point constitute a control output point of the punching motor of the full-automatic binding machine;

[0048] The fourth control point and the eighth control point constitute the control output point of the transposition motor of the full-automatic binding machine.

[0049] According to another aspect of the present invention, a multi-motor control method for a fully automatic binding machine is provided, which is executed by the multi-motor control circuit of the fully automatic binding machine described in any embodiment of the present invention, wherein the multi-motor control circuit comprises: a single-chip computer module, a motor drive module and a half-bridge circuit module; the motor drive module comprises a plurality of motor drive circuits, each of which comprises a plurality of high-side input terminals, a low-side input terminal, a high-side output terminal and a low-side output terminal; the half-bridge circuit module comprises a plurality of MOS tubes;

[0050] The single chip computer module is connected to the motor driving module, and the motor driving module is connected to the half-bridge circuit module;

[0051] The multi-motor control method comprises:

[0052] The single chip microcomputer module inputs a pulse width modulation signal and a high and low level signal to the high side input terminal and the low side input terminal of the motor driving module respectively;

[0053] The high-side output end of the motor driving module outputs the pulse width modulation signal to the gate of the MOS tube of the upper half bridge of the half-bridge circuit module, and the low-side output end of the motor driving module outputs the high and low level signals to the gate of the MOS tube of the lower half bridge of the half-bridge circuit module;

[0054] The motor driving module controls the forward and reverse rotation of each of the motors according to the pulse width modulation signal and the high and low level signals.

[0055] The technical solution provided by the embodiment of the present invention is provided with a single-chip microcomputer module, a motor driving module and a half-bridge circuit module, and the pulse width modulation signal and the high and low level signals are respectively input to the high-side input terminal and the low-side input terminal of the motor driving module through the single-chip microcomputer module; the motor driving module controls the bridge arm composed of multiple groups of MOS tubes of the half-bridge circuit module according to the pulse width modulation signal and the high and low level signals, and then controls the forward and reverse rotation of each motor, so as to realize the full-automatic punching and binding of the financial binding machine, and no manual auxiliary operation is required in the process of controlling the single motor for punching and binding, which effectively improves the binding efficiency, and avoids one motor being controlled by one motor driving circuit, effectively saves the number of I / O ports of the single-chip microcomputer and the number of chips required for the motor driving circuit, and reduces the cost. The technical solution provided by the embodiment of the present invention solves the problems of low efficiency, large occupation of hardware resources and high cost in the prior art.

[0056] It should be understood that the contents described in this section are not intended to identify the key or important features of the embodiments of the present invention, nor are they intended to limit the scope of the present invention. Other features of the present invention will become easily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0057] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0058] Figure 1 A schematic diagram of a multi-motor control circuit for a fully automatic binding machine provided by an embodiment of the present invention;

[0059] Figure 2 A schematic structural diagram of a first motor drive circuit of a motor drive module of a multi-motor control circuit of a fully automatic binding machine provided by an embodiment of the present invention;

[0060] Figure 3 A schematic diagram of the structure of a second motor drive circuit of a motor drive module of a multi-motor control circuit of a fully automatic binding machine provided by an embodiment of the present invention;

[0061] Figure 4 A schematic structural diagram of a third motor drive circuit of a motor drive module of a multi-motor control circuit of a fully automatic binding machine provided by an embodiment of the present invention;

[0062] Figure 5 A circuit schematic diagram of a single-chip microcomputer module of a multi-motor control circuit of a fully automatic binding machine provided by an embodiment of the present invention;

[0063] Figure 6 A schematic structural diagram of a fully automatic binding machine provided by an embodiment of the present invention;

[0064] Figure 7 A schematic structural diagram of another fully automatic binding machine provided by an embodiment of the present invention;

[0065] Figure 8 A flowchart of a multi-motor control method for a fully automatic binding machine provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0066] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0067] It should be noted that the terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" 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 is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0068] Figure 1 A schematic diagram of a multi-motor control circuit for a fully automatic binding machine according to an embodiment of the present invention is shown in FIG. Figure 1 The multi-motor control circuit includes: a single-chip microcomputer module 110, a motor driving module 120 and a half-bridge circuit module 130; the motor driving module includes multiple motor driving circuits, each driving circuit includes multiple high-side input terminals, low-side input terminals, high-side output terminals and low-side output terminals; the half-bridge circuit module includes multiple MOS tubes; the single-chip microcomputer module 110 is connected to the motor driving module 120, and the motor driving module 120 is connected to the half-bridge circuit module 130.

[0069] The single-chip computer module 110 is used to input pulse width modulation signals and high and low level signals to the high-side input terminal and the low-side input terminal of the motor driving module 120 respectively; the high-side output terminal of the motor driving module 120 outputs a pulse width modulation signal to the gate of the MOS tube of the upper half bridge of the half-bridge circuit module, and the low-side output terminal of the motor driving module 120 outputs high and low level signals to the gate of the MOS tube of the lower half bridge of the half-bridge circuit module; the motor driving module 120 is used to control the forward and reverse rotation of each motor according to the pulse width modulation signal and the high and low level signals.

[0070] The working principle of the multi-motor control circuit is as follows: when the binding machine receives a command for punching or binding, the single-chip microcomputer module 110 outputs a pulse width modulation (PWM) signal and a high- and low-level signal to the high-side input terminal and the low-side input terminal of the motor driving module 120, respectively; the high-side output terminal of the motor driving module 120 outputs a PWM signal to the gate of the upper half-bridge MOS tube of the half-bridge circuit module 130, and the low-side output terminal outputs a high- and low-level signal to the gate of the lower half-bridge MOS tube of the half-bridge circuit module 130. The motor driving module includes multiple motor driving circuits, and a single motor driving circuit can realize the driving control of multiple groups of half-bridge circuit modules, thereby realizing the control of multiple motors.

[0071] The technical solution provided by the embodiment of the present invention is provided with a single-chip microcomputer module, a motor driving module and a half-bridge circuit module, and the pulse width modulation signal and the high and low level signals are respectively input to the high-side input terminal and the low-side input terminal of the motor driving module through the single-chip microcomputer module; the motor driving module controls the bridge arm composed of multiple groups of MOS tubes of the half-bridge circuit module according to the pulse width modulation signal and the high and low level signals, and then controls the forward and reverse rotation of each motor, so as to realize the full-automatic punching and binding of the financial binding machine, and no manual auxiliary operation is required in the process of controlling the single motor for punching and binding, which effectively improves the binding efficiency, and avoids one motor being controlled by one motor driving circuit, effectively saves the number of I / O ports of the single-chip microcomputer and the number of chips required for the motor driving circuit, and reduces the cost. The technical solution provided by the embodiment of the present invention solves the problems of low efficiency, large occupation of hardware resources and high cost in the prior art.

[0072] Figure 2 This is a schematic diagram of the structure of the first motor drive circuit of the motor drive module of the multi-motor control circuit of a fully automatic binding machine provided by an embodiment of the present invention. The embodiment of the present invention further refines the motor drive module based on the above embodiment. Figure 2 The motor drive module includes a first motor drive circuit U1; the first motor drive circuit U1 includes a first high-side input terminal UH, a second high-side input terminal VH, a third high-side input terminal WH, a first low-side input terminal UL, a second low-side input terminal VL, a third low-side input terminal WL, a first high-side output terminal HOA, a second high-side output terminal HOB, a third high-side output terminal HOC, a first low-side output terminal LOA, a second low-side output terminal LOB and a third low-side output terminal LOC; the single-chip microcomputer module is used to input pulse width modulation signals and high and low level signals to the high-side input terminal and the low-side input terminal of the motor drive module respectively, including:

[0073] The single-chip microcomputer module inputs the first pulse width modulation signal PWM0, the second pulse width modulation signal PWM1 and the third pulse width modulation signal PWM2 to the first high-side input terminal UH, the second high-side input terminal VH and the third high-side input terminal WH of the first motor drive circuit U1 respectively; the single-chip microcomputer module inputs the first high and low level signal AL, the second high and low level signal BL and the third high and low level signal CL to the first low-side input terminal UL, the second low-side input terminal VL and the third low-side input terminal WL of the first motor drive circuit U1 respectively.

[0074] Optionally, the half-bridge circuit module includes a first MOS tube N7, a second MOS tube N8, a third MOS tube N9, a fourth MOS tube N10, a fifth MOS tube N11 and a sixth MOS tube N12; the high-side output end of the motor driving module outputs a pulse width modulation signal to the gate of the MOS tube of the upper half bridge of the half-bridge circuit module, and the low-side output end of the motor driving module outputs a high and low level signal to the gate of the MOS tube of the lower half bridge of the half-bridge circuit module, including:

[0075] The first high-side output terminal HOA, the second high-side output terminal HOB and the third high-side output terminal HOC respectively output the first pulse width modulation signal PWM0, the second pulse width modulation signal PWM1 and the third pulse width modulation signal PWM2 to the gates of the first MOS tube N7, the third MOS tube N9 and the fifth MOS tube N11; the first low-side output terminal LOA, the second low-side output terminal LOB and the third low-side output terminal LOC respectively output the first high and low level signal AL, the second high and low level signal BL and the third high and low level signal CL to the gates of the second MOS tube N8, the fourth MOS tube N10 and the sixth MOS tube N12.

[0076] Figure 3 This is a schematic diagram of the structure of the second motor drive circuit of the motor drive module of the multi-motor control circuit of a fully automatic binding machine provided by an embodiment of the present invention. The embodiment of the present invention further refines the motor drive module based on the above embodiment. Figure 3 , the motor drive module also includes a second motor drive circuit U2; the second motor drive circuit includes a fourth high-side input terminal UH, a fifth high-side input terminal VH, a sixth high-side input terminal WH, a fourth low-side input terminal UL, a fifth low-side input terminal VL, a sixth low-side input terminal WL, a fourth high-side output terminal HOD, a fifth high-side output terminal HOE, a sixth high-side output terminal HOF, a fourth low-side output terminal LOD, a fifth low-side output terminal LOE and a sixth low-side output terminal LOF; the single-chip microcomputer module is used to input pulse width modulation signals and high and low level signals to the high-side input terminal and the low-side input terminal of the motor drive module respectively, including:

[0077] The single-chip microcomputer module is used to input the fourth pulse width modulation signal PWM3, the fifth pulse width modulation signal PWM4 and the sixth pulse width modulation signal PWM5 to the fourth high-side input terminal UH, the fifth high-side input terminal VH and the sixth high-side input terminal WH of the second motor drive circuit respectively; the single-chip microcomputer module inputs the fourth high and low level signal DL, the fifth high and low level signal EL and the sixth high and low level signal FL to the fourth low-side input terminal UL, the fifth low-side input terminal VL and the sixth low-side input terminal WL of the second motor drive circuit respectively.

[0078] Optionally, the half-bridge circuit module includes a seventh MOS tube N13, an eighth MOS tube N14, a ninth MOS tube N15, a tenth MOS tube N16, an eleventh MOS tube N17 and a twelfth MOS tube N18;

[0079] The high-side output end of the motor driving module outputs a pulse width modulation signal to the gate of the MOS tube of the upper half bridge of the half-bridge circuit module, and the low-side output end of the motor driving module outputs a high and low level signal to the gate of the MOS tube of the lower half bridge of the half-bridge circuit module, including:

[0080] The fourth high-side output terminal HOD, the fifth high-side output terminal HOE and the sixth high-side output terminal HOF are respectively used to output the fourth pulse width modulation signal PWM3, the fifth pulse width modulation signal PWM4 and the sixth pulse width modulation signal PWM5 to the gates of the seventh MOS tube N13, the ninth MOS tube N15 and the eleventh MOS tube N17; the fourth low-side output terminal LOD, the fifth low-side output terminal LOE and the sixth low-side output terminal LOF are respectively used to output the fourth high and low level signal DL, the fifth high and low level signal EL and the sixth high and low level signal FL to the gates of the eighth MOS tube N14, the tenth MOS tube N16 and the twelfth MOS tube N18.

[0081] Figure 4 This is a schematic diagram of the structure of the third motor drive circuit of the motor drive module of the multi-motor control circuit of a fully automatic binding machine provided by an embodiment of the present invention. The embodiment of the present invention further refines the motor drive module based on the above embodiment. Figure 4 The motor drive module also includes a third motor drive circuit U3; the third motor drive circuit includes a seventh high-side input terminal UH, an eighth high-side input terminal VH, a ninth high-side input terminal WH, a seventh low-side input terminal UL, an eighth low-side input terminal VL, a ninth low-side input terminal WL, a seventh high-side output terminal HOG, an eighth high-side output terminal HOH, a ninth high-side output terminal HOI, a seventh low-side output terminal LOG, an eighth low-side output terminal LOH and a ninth low-side output terminal LOI; the single-chip microcomputer module is used to input pulse width modulation signals and high and low level signals to the high-side input terminal and the low-side input terminal of the motor drive module respectively, including:

[0082] The single-chip microcomputer module is used to input the seventh pulse width modulation signal PWM6, the eighth pulse width modulation signal PWM7 and the ninth pulse width modulation signal PWM8 to the seventh high-side input terminal UH, the eighth high-side input terminal VH and the ninth high-side input terminal WH of the third motor drive circuit respectively; the single-chip microcomputer module inputs the seventh high-low level signal GL, the eighth high-low level signal HL and the ninth high-low level signal IL to the seventh low-side input terminal UL, the eighth low-side input terminal VL and the ninth low-side input terminal WL of the third motor drive circuit respectively.

[0083] Optionally, the half-bridge circuit module includes a thirteenth MOS tube N1, a fourteenth MOS tube N2, a fifteenth MOS tube N3, a sixteenth MOS tube N4, a seventeenth MOS tube N5 and an eighteenth MOS tube N6; the high-side output end of the motor drive module outputs a pulse width modulation signal to the gate of the MOS tube of the upper half bridge of the half-bridge circuit module, and the low-side output end of the motor drive module outputs high and low level signals to the gate of the MOS tube of the lower half bridge of the half-bridge circuit module, including:

[0084] The seventh high-side output terminal HOG, the eighth high-side output terminal HOH and the ninth high-side output terminal HOI are respectively used to output the seventh pulse width modulation signal PWM6, the eighth pulse width modulation signal PWM7 and the ninth pulse width modulation signal PWM8 to the gates of the thirteenth MOS tube N1, the fifteenth MOS tube N3 and the seventeenth MOS tube N5; the seventh low-side output terminal LOG, the eighth low-side output terminal LOH and the ninth low-side output terminal LOI are respectively used to output the seventh high-low level signal GL, the eighth high-low level signal HL and the ninth high-low level signal IL to the gates of the fourteenth MOS tube N2, the sixteenth MOS tube N4 and the eighteenth MOS tube N6.

[0085] Continue to see Figures 2 to 4 Optionally, the common point formed by the source of the first MOS tube N7 and the drain of the second MOS tube N8 is the first control point A; the common point formed by the source of the third MOS tube N9 and the drain of the fourth MOS tube N10 is the second control point B; the common point formed by the source of the fifth MOS tube N11 and the drain of the sixth MOS tube N12 is the third control point C; the common point formed by the source of the seventh MOS tube N13 and the drain of the eighth MOS tube N14 is the fourth control point D; the common point formed by the source of the ninth MOS tube N15 and the drain of the tenth MOS tube N16 is the fourth control point D; the common point formed by the source of the ninth MOS tube N16 and the drain of the tenth MOS tube N17 is the fourth control point D; the common point formed by the source of the ninth MOS tube N17 and the drain of the tenth MOS tube N18 is the fourth control point D; the common point formed by the source of the ninth MOS tube N18 and the drain of the tenth MOS tube N19 is the fourth control point D; the common point formed by the source of the ninth MOS tube N19 and the drain of the tenth MOS tube N20 is the fourth control point D; the common point formed by the source of the ninth MOS tube N19 and the drain of the tenth MOS tube N21 is the fourth control point D; the common point formed by the source of the ninth MOS tube N19 and the drain of the tenth MOS tube N22 is the fourth control point D; the common point formed by the source of the ninth MOS tube N19 and the drain of the tenth MOS tube N23 is the fourth control point D; the common point formed by the source of the ninth MOS tube N19 and the drain of the tenth MOS tube N24 is the fourth control point D; the common point formed by the source of the ninth MOS tube N19 and the drain of the tenth MOS tube N25 is the fourth control point D; the common point formed by the source of the fifth The common point formed by the drain of the 11th MOS tube N17 and the drain of the 12th MOS tube N18 is the fifth control point E; the common point formed by the source of the 13th MOS tube N1 and the drain of the 14th MOS tube N2 is the seventh control point G; the common point formed by the source of the 15th MOS tube N3 and the drain of the 16th MOS tube N4 is the eighth control point H; the common point formed by the source of the 17th MOS tube N5 and the drain of the 18th MOS tube N6 is the ninth control point I. Optionally, the first control point A and the fifth control point E constitute the paper pressing table motor control output point of the fully automatic binding machine; the fifth control point E and the seventh control point G constitute the tube cutting motor control output point of the fully automatic binding machine; the sixth control point F and the ninth control point I constitute the cycloid motor control output point of the fully automatic binding machine; the sixth control point F and the second control point B constitute the riveting motor control output point of the fully automatic binding machine; the fourth control point D and the third control point C constitute the punching motor control output point of the fully automatic binding machine; the fourth control point D and the eighth control point H constitute the transposition motor control output point of the fully automatic binding machine.

[0086] Figure 5 A circuit schematic diagram of a single-chip microcomputer module of a multi-motor control circuit of a fully automatic binding machine provided by an embodiment of the present invention, Figure 6 A schematic diagram of the structure of a fully automatic binding machine provided by an embodiment of the present invention. Figure 7 A structural diagram of another fully automatic binding machine provided by an embodiment of the present invention, see Figures 5 to 7 , punching action process:

[0087] 1. When the binding machine receives the punching command, the gate of N17MOS tube inputs PWM signal, the gate of N4MOS tube inputs high level, the gate of N18 and N3MOS tubes input low level, FI outputs VCC, and the cycloid motor rotates forward to take over the lowering and placement of the tube support.

[0088] 2. The gate of N13MOS tube inputs PWM signal, the gate of N6MOS tube inputs high level, the gate of N14 and N5MOS tubes input low level, DH outputs VCC, and the commutation motor rotates forward to perform commutation action.

[0089] 3. The gate of N13MOS tube inputs PWM signal, the gate of N12MOS tube inputs high level, the gate of N14 and N11MOS tubes input low level, DC outputs VCC, and the punching motor rotates forward and rises a certain distance to detect the residual tube of the ejector pin.

[0090] 4. The gate of N7MOS tube inputs PWM signal, the gate of N16MOS tube inputs high level, the gate of N8 and N15MOS tubes input low level, AE outputs VCC, and the paper press table is driven by the paper press table motor to descend in the forward direction to press paper. At the same time, the gate of N3MOS tube inputs PWM signal, the gate of N18MOS tube inputs high level, the gate of N4 and N17MOS tubes input low level, FI outputs -VCC, the cycloid motor reverses, and the tube holder rises and returns to its original position.

[0091] 5. The gate of N15MOS tube inputs PWM signal, the gate of N2MOS tube inputs high level, the gate of N16 and N1MOS tubes input low level, EG outputs VCC, and the tube cutting motor rotates forward to open the tube cutting knife.

[0092] 6. The gate of N13MOS tube inputs PWM signal, the gate of N12MOS tube inputs high level, the gate of N14 and N11MOS tubes input low level, DC outputs VCC, and the punching motor rotates forward to punch holes.

[0093] 7. After the drill hits the shim, the gate of N11 tube inputs PWM signal, the gate of N14MOS tube inputs high level, the gate of N12 and N13MOS tubes input low level, DC output -VCC, and the punching motor reverses and descends back to its original position.

[0094] 8. The gate of N1MOS tube inputs PWM signal, the gate of N16MOS tube inputs high level, the gate of N15 and N2MOS tubes input low level, EG outputs -VCC, and the tube cutting motor reverses to close the tube cutting knife.

[0095] 9. The gate of N15MOS tube inputs PWM signal, the gate of N8MOS tube inputs high level, the gate of N7 and N16MOS tubes input low level, and AE outputs -VCC, and the paper press motor reverses and rises back to its original position.

[0096] 10. The gate of N5MOS tube inputs PWM signal, the gate of N14MOS tube inputs high level, the gate of N13 and N6MOS tubes input low level, DH outputs -VCC, and the commutation motor reverses and switches back to the initial state.

[0097] Binding process:

[0098] 1. When the binding machine receives the binding command, the gate of N17MOS tube inputs PWM signal, the gate of N4MOS tube inputs high level, the gate of N18 and N3MOS tubes input low level, FI outputs VCC, and the cycloid motor rotates forward to take over the lowering and placement of the tube support.

[0099] 2. The gate of N13MOS tube inputs PWM signal, the gate of N6MOS tube inputs high level, the gate of N14 and N5MOS tubes input low level, DH outputs VCC, and the commutation motor rotates forward to perform commutation action.

[0100] 3. The gate of N13MOS tube inputs PWM signal, the gate of N12MOS tube inputs high level, the gate of N14 and N11MOS tubes input low level, DC outputs VCC, and the punching motor rotates forward and rises a certain distance to detect the residual tube of the ejector pin.

[0101] 4. The gate of N7MOS tube inputs PWM signal, the gate of N16MOS tube inputs high level, the gate of N8 and N15MOS tubes input low level, AE outputs VCC, and the paper press table is driven by the paper press table motor to descend in the forward direction to press paper. At the same time, the gate of N3MOS tube inputs PWM signal, the gate of N18MOS tube inputs high level, the gate of N4 and N17MOS tubes input low level, FI outputs -VCC, the cycloid motor reverses, and the tube holder rises and returns to its original position.

[0102] 5. The gate of N15MOS tube inputs PWM signal, the gate of N2MOS tube inputs high level, the gate of N16 and N1MOS tubes input low level, EG outputs VCC, and the tube cutting motor rotates forward to open the tube cutting knife.

[0103] 6. The gate of N13MOS tube inputs PWM signal, the gate of N12MOS tube inputs high level, the gate of N14 and N11MOS tubes input low level, DC outputs VCC, the punching motor rotates forward and rises to punch holes, the punching motor stops moving after the drill hits the knife pad, and the pipe cutting motor closes the pipe cutting knife after completing one pipe cutting action.

[0104] 7. The gate of N17MOS tube inputs PWM signal, the gate of N4MOS tube inputs high level, the gate of N18 and N3MOS tubes input low level, FI outputs VCC, and the cycloid motor rotates forward to take over the lowering and placement of the tube support.

[0105] 8. The gate of N11 tube inputs PWM signal, the gate of N14MOS tube inputs high level, the gate of N12 and N13MOS tubes input low level, DC output -VCC, and the punching motor reverses and descends back to the origin.

[0106] 9. The gate of N5MOS tube inputs PWM signal, the gate of N14MOS tube inputs high level, the gate of N13 and N6MOS tubes input low level, DH outputs -VCC, and the commutation motor switches from reverse to forward.

[0107] 10. The punching motor rotates forward to drive the lower rivet head to rise. At the same time, the gate of N17MOS tube inputs PWM signal, the gate of N10MOS tube inputs high level, the gate of N18 and N9MOS tubes input low level, FB outputs VCC, and the upper rivet head motor drives the upper rivet head to rotate forward and downward, and the upper and lower rivet heads perform a riveting action.

[0108] 11. After the riveting is completed, the upper and lower rivet heads reverse and reset at the same time, the upper rivet head rises and returns to its position, and the lower rivet head descends and returns to its position. When the upper rivet head moves to the position, the paper press motor also reverses and rises synchronously, and stops when it reaches the origin.

[0109] 12. The gate of N3MOS tube inputs PWM signal, the gate of N18MOS tube inputs high level, the gate of N4 and N17MOS tubes input low level, FI outputs -VCC, the cycloid motor reverses, and the tube holder rises and returns to its original position.

[0110] The technical solution provided by the embodiment of the present invention controls the bridge arms composed of multiple groups of MOS tubes of the half-bridge circuit module through the single-chip microcomputer module, and then controls multiple motors to achieve automatic punching and binding of the binding machine. In the control process, the solution uses a single group of bridge arms multiple times, that is, different motors can use the same bridge arm under different working conditions. The solution can maximize the utilization rate of the bridge arm, and no action conflict will occur between different motors.

[0111] Figure 8 A flowchart of a multi-motor control method for a fully automatic binding machine provided by an embodiment of the present invention, see Figure 8, the multi-motor control method comprises:

[0112] S810, the single chip microcomputer module inputs a pulse width modulation signal and a high and low level signal to the high side input terminal and the low side input terminal of the motor driving module respectively.

[0113] S820, the high-side output end of the motor driving module outputs a pulse width modulation signal to the gate of the MOS tube of the upper half bridge of the half-bridge circuit module, and the low-side output end of the motor driving module outputs high and low level signals to the gate of the MOS tube of the lower half bridge of the half-bridge circuit module.

[0114] S830, the motor drive module controls the forward and reverse rotation of each motor according to the pulse width modulation signal and the high and low level signals.

[0115] A multi-motor control method for a fully automatic binding machine provided by an embodiment of the present invention is executed by a multi-motor control circuit for a fully automatic binding machine provided by any embodiment of the present invention, and has corresponding functional modules and beneficial effects of the multi-motor control circuit.

[0116] It should be understood that the various forms of processes shown above can be used to reorder, add or delete steps. For example, the steps described in the present invention can be executed in parallel, sequentially or in different orders, as long as the desired results of the technical solution of the present invention can be achieved, and this document does not limit this.

[0117] The above specific implementations do not constitute a limitation on the protection scope of the present invention. It should be understood by those skilled in the art that various modifications, combinations, sub-combinations and substitutions can be made according to design requirements and other factors. Any modification, equivalent substitution and improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A multi-motor control circuit for a fully automatic binding machine, characterized in that: include: Single chip microcomputer module, motor drive module and half-bridge circuit module; The motor drive module includes a plurality of motor drive circuits, each of which includes a plurality of high-side input terminals, a low-side input terminal, a high-side output terminal and a low-side output terminal; the half-bridge circuit module includes a plurality of MOS tubes; The single chip computer module is connected to the motor driving module, and the motor driving module is connected to the half-bridge circuit module; The single chip microcomputer module is used to input a pulse width modulation signal and a high and low level signal to the high side input terminal and the low side input terminal of the motor driving module respectively; The high-side output end of the motor driving module outputs the pulse width modulation signal to the gate of the MOS tube of the upper half bridge of the half-bridge circuit module, and the low-side output end of the motor driving module outputs the high and low level signals to the gate of the MOS tube of the lower half bridge of the half-bridge circuit module; The motor driving module is used to control the forward and reverse rotation of each of the motors according to the pulse width modulation signal and the high and low level signals.

2. The multi-motor control circuit according to claim 1, characterized in that: The motor drive module comprises a first motor drive circuit; the first motor drive circuit comprises a first high-side input terminal, a second high-side input terminal, a third high-side input terminal, a first low-side input terminal, a second low-side input terminal, a third low-side input terminal, a first high-side output terminal, a second high-side output terminal, a third high-side output terminal, a first low-side output terminal, a second low-side output terminal and a third low-side output terminal; The single chip microcomputer module is used to input a pulse width modulation signal and a high and low level signal to the high side input terminal and the low side input terminal of the motor driving module respectively, including: The single chip microcomputer module inputs a first pulse width modulation signal, a second pulse width modulation signal and a third pulse width modulation signal to the first high side input terminal, the second high side input terminal and the third high side input terminal of the first motor driving circuit respectively; The single chip microcomputer module inputs a first high-low level signal, a second high-low level signal and a third high-low level signal to the first low-side input terminal, the second low-side input terminal and the third low-side input terminal of the first motor driving circuit respectively.

3. The multi-motor control circuit according to claim 2, characterized in that: The half-bridge circuit module includes a first MOS tube, a second MOS tube, a third MOS tube, a fourth MOS tube, a fifth MOS tube and a sixth MOS tube; The high-side output end of the motor driving module outputs the pulse width modulation signal to the gate of the MOS tube of the upper half bridge of the half-bridge circuit module, and the low-side output end of the motor driving module outputs the high and low level signals to the gate of the MOS tube of the lower half bridge of the half-bridge circuit module, including: The first high-side output terminal, the second high-side output terminal and the third high-side output terminal respectively output a first pulse width modulation signal, a second pulse width modulation signal and a third pulse width modulation signal to the gates of the first MOS transistor, the third MOS transistor and the fifth MOS transistor; The first low-side output terminal, the second low-side output terminal and the third low-side output terminal respectively output a first high-low level signal, a second high-low level signal and a third high-low level signal to the gates of the second MOS tube, the fourth MOS tube and the sixth MOS tube.

4. The multi-motor control circuit according to claim 1, characterized in that: The motor drive module also includes a second motor drive circuit; the second motor drive circuit includes a fourth high-side input terminal, a fifth high-side input terminal, a sixth high-side input terminal, a fourth low-side input terminal, a fifth low-side input terminal, a sixth low-side input terminal, a fourth high-side output terminal, a fifth high-side output terminal, a sixth high-side output terminal, a fourth low-side output terminal, a fifth low-side output terminal and a sixth low-side output terminal; The single chip microcomputer module is used to input a pulse width modulation signal and a high and low level signal to the high side input terminal and the low side input terminal of the motor driving module respectively, including: The single chip microcomputer module is used to input a fourth pulse width modulation signal, a fifth pulse width modulation signal and a sixth pulse width modulation signal to the fourth high side input terminal, the fifth high side input terminal and the sixth high side input terminal of the second motor driving circuit respectively; The single chip microcomputer module inputs a fourth high and low level signal, a fifth high and low level signal and a sixth high and low level signal to the fourth low side input terminal, the fifth low side input terminal and the sixth low side input terminal of the second motor driving circuit respectively.

5. The multi-motor control circuit according to claim 4, characterized in that: The half-bridge circuit module includes a seventh MOS tube, an eighth MOS tube, a ninth MOS tube, a tenth MOS tube, an eleventh MOS tube and a twelfth MOS tube; The high-side output end of the motor driving module outputs the pulse width modulation signal to the gate of the MOS tube of the upper half bridge of the half-bridge circuit module, and the low-side output end of the motor driving module outputs the high and low level signals to the gate of the MOS tube of the lower half bridge of the half-bridge circuit module, including: The fourth high-side output terminal, the fifth high-side output terminal and the sixth high-side output terminal are used to output the fourth pulse width modulation signal, the fifth pulse width modulation signal and the sixth pulse width modulation signal to the gates of the seventh MOS tube, the ninth MOS tube and the eleventh MOS tube respectively; The fourth low-side output terminal, the fifth low-side output terminal and the sixth low-side output terminal are respectively used to output a fourth high-low level signal, a fifth high-low level signal and a sixth high-low level signal to the gates of the eighth MOS tube, the tenth MOS tube and the twelfth MOS tube.

6. The multi-motor control circuit according to claim 1, characterized in that: The motor drive module also includes a third motor drive circuit; the third motor drive circuit includes a seventh high-side input terminal, an eighth high-side input terminal, a ninth high-side input terminal, a seventh low-side input terminal, an eighth low-side input terminal, a ninth low-side input terminal, a seventh high-side output terminal, an eighth high-side output terminal, a ninth high-side output terminal, a seventh low-side output terminal, an eighth low-side output terminal and a ninth low-side output terminal; The single chip microcomputer module is used to input a pulse width modulation signal and a high and low level signal to the high side input terminal and the low side input terminal of the motor driving module respectively, including: The single-chip microcomputer module is used to input a seventh pulse width modulation signal, an eighth pulse width modulation signal and a ninth pulse width modulation signal to the seventh high-side input terminal, the eighth high-side input terminal and the ninth high-side input terminal of the third motor driving circuit respectively; The single chip microcomputer module inputs a seventh high-low level signal, an eighth high-low level signal and a ninth high-low level signal to the seventh low-side input terminal, the eighth low-side input terminal and the ninth low-side input terminal of the third motor driving circuit respectively.

7. The multi-motor control circuit according to claim 6, characterized in that: The half-bridge circuit module includes a thirteenth MOS tube, a fourteenth MOS tube, a fifteenth MOS tube, a sixteenth MOS tube, a seventeenth MOS tube and an eighteenth MOS tube; The high-side output end of the motor driving module outputs the pulse width modulation signal to the gate of the MOS tube of the upper half bridge of the half-bridge circuit module, and the low-side output end of the motor driving module outputs the high and low level signals to the gate of the MOS tube of the lower half bridge of the half-bridge circuit module, including: The seventh high-side output terminal, the eighth high-side output terminal and the ninth high-side output terminal are used to output the seventh pulse width modulation signal, the eighth pulse width modulation signal and the ninth pulse width modulation signal to the gates of the thirteenth MOS tube, the fifteenth MOS tube and the seventeenth MOS tube respectively; The seventh low-side output terminal, the eighth low-side output terminal and the ninth low-side output terminal are respectively used to output the seventh high-low level signal, the eighth high-low level signal and the ninth high-low level signal to the gates of the fourteenth MOS tube, the sixteenth MOS tube and the eighteenth MOS tube.

8. The multi-motor control circuit according to any one of claims 2 to 7, characterized in that: A common point formed by the source of the first MOS tube and the drain of the second MOS tube is a first control point; A common point formed by the source of the third MOS tube and the drain of the fourth MOS tube is a second control point; A common point formed by the source of the fifth MOS tube and the drain of the sixth MOS tube is a third control point; A common point formed by the source of the seventh MOS tube and the drain of the eighth MOS tube is a fourth control point; A common point formed by the source of the ninth MOS tube and the drain of the tenth MOS tube is a fifth control point; A common point formed by the source of the eleventh MOS tube and the drain of the twelfth MOS tube is a sixth control point; A common point formed by the source of the thirteenth MOS tube and the drain of the fourteenth MOS tube is a seventh control point; The common point formed by the source of the fifteenth MOS tube and the drain of the sixteenth MOS tube is the eighth control point; A common point formed by the source of the seventeenth MOS tube and the drain of the eighteenth MOS tube is a ninth control point.

9. The multi-motor control circuit according to claim 8, characterized in that: The first control point and the fifth control point constitute the motor control output point of the paper press of the full-automatic binding machine; The fifth control point and the seventh control point constitute the tube cutting motor control output point of the full-automatic binding machine; The sixth control point and the ninth control point constitute the cycloid motor control output point of the full-automatic binding machine; The sixth control point and the second control point constitute the control output point of the riveting motor of the full-automatic binding machine; The fourth control point and the third control point constitute a control output point of the punching motor of the full-automatic binding machine; The fourth control point and the eighth control point constitute the control output point of the transposition motor of the full-automatic binding machine.

10. A multi-motor control method for a fully automatic binding machine, characterized in that: The method is executed by the multi-motor control circuit of the fully automatic binding machine according to any one of claims 1 to 9, wherein the multi-motor control circuit comprises: a single-chip microcomputer module, a motor drive module and a half-bridge circuit module; the motor drive module comprises a plurality of motor drive circuits, each of which comprises a plurality of high-side input terminals, a low-side input terminal, a high-side output terminal and a low-side output terminal; the half-bridge circuit module comprises a plurality of MOS tubes; The single chip computer module is connected to the motor driving module, and the motor driving module is connected to the half-bridge circuit module; The multi-motor control method comprises: The single chip microcomputer module inputs a pulse width modulation signal and a high and low level signal to the high side input terminal and the low side input terminal of the motor driving module respectively; The high-side output end of the motor driving module outputs the pulse width modulation signal to the gate of the MOS tube of the upper half bridge of the half-bridge circuit module, and the low-side output end of the motor driving module outputs the high and low level signals to the gate of the MOS tube of the lower half bridge of the half-bridge circuit module; The motor driving module controls the forward and reverse rotation of each of the motors according to the pulse width modulation signal and the high and low level signals.

Images