A kind of automatic wire feeding bundling machine based on electric signal, wire feeding control method

Abstract

The application discloses a kind of automatic wire feeding bundling machines based on electric signal, wire feeding control method, the automatic wire feeding bundling machine includes wire feeding nozzle, driving wire feeding wheel, driven wire feeding wheel, wire feeding motor and processor, and for providing bundling wire reel;Wire feeding motor is controlled by processor to drive driving wire feeding wheel rotation;Driving wire feeding wheel and driven wire feeding wheel at least one, and wire feeding nozzle have conductive part;Automatic wire feeding bundling machine is equipped with wire feeding control loop, wire feeding control loop includes first input, second input, first output, first output is connected to processor, wherein, the short connection between first input and second input triggers first output first electric signal output;The conductive part of wire feeding nozzle is connected to first input;The conductive part of any one of driving wire feeding wheel and driven wire feeding wheel is connected to second input.The application can realize automatic wire feeding based on electric signal, improve the efficiency and safety of wire feeding of bundling machine.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of automatic bundling machines, in particular to an automatic wire feeding bundling machine based on electric signals and a wire feeding control method. BACKGROUND

[0002] A bundling machine is a device for fixing and tightening the bundled material by winding the bundling wire, as recorded in patent CN111706084 A, the bundling machine includes a bending forming part (i.e. a round forming mechanism), a twisting unit (i.e. a wire winding assembly), and the like.

[0003] The bundling machines on the market need manual feeding of the bundling wire to the wire feeding inlet between the two intermeshing wire feeding wheels, and the wire feeding wheels are moved to feed the bundling wire to the wire guide mechanism, and the wire guide mechanism guides the bundling wire to the bundling mechanism to complete the bundling action. Since the two wire feeding wheels of the automatic bundling machine are very tightly intermeshed, it is very difficult to manually feed the bundling wire through the wire feeding wheels to the wire guide mechanism, therefore, one solution is to hold the bundling wire by hand and feed the end of the bundling wire to the bottom of the two gears, and then press the trigger of the bundling machine, the electric control system in the bundling machine drives the driving gear to rotate to feed the bundling wire to realize wire feeding. This solution is prone to cause the operator's hand to be injured by the rapid feeding of the bundling wire due to the high speed of the driving gear under normal working conditions, and the feeding amount cannot be controlled, which may cause the waste of the wire in the first bundling due to excessive feeding, or the failure of the first bundling due to insufficient feeding. Another way is as recorded in patent CN201680043004.5, the feeding gear set as a driven wheel can be a tension roller, which can be pushed away from the feeding gear set as a driving wheel at a close distance with a desired pushing force, which belongs to a way of separating the two wire feeding wheels by manually operating a mechanical structure, so that the user can easily feed the bundling wire to the wire guide mechanism through the channel formed after the separation of the wire feeding wheels. However, this way requires the operator to press the pushing force with one hand and hold the wire with the other hand, which is complicated to operate, and the manual wire feeding way is low in efficiency and low in accuracy of feeding amount control, which also leads to waste of consumables. SUMMARY

[0004] The technical problem to be solved by the present application is to provide an automatic wire feeding bundling machine based on electric signals and a wire feeding control method, which can realize automatic wire feeding and improve the efficiency and safety of the wire feeding of the bundling machine.

[0005] To solve the above technical problems, the present application discloses an automatic wire feeding bundling machine based on electric signals, which comprises a wire feeding nozzle, a driving wire feeding wheel, a driven wire feeding wheel, a wire feeding motor, a wire guide mechanism, a processor, and a wire disc for providing the bundling wire; the wire feeding motor is controlled by the processor to drive the driving wire feeding wheel to rotate; wherein,

[0006] At least one of the driving wire feeding wheel and the driven wire feeding wheel, and the wire inlet nozzle has a conductive part;

[0007] The automatic wire feeding bundling machine is provided with a wire feeding control circuit, which comprises a first input end, a second input end, and a first output end connected to the processor, wherein short-circuiting between the first input end and the second input end triggers the first output end to output a first electric signal;

[0008] The conductive part of the wire inlet nozzle is connected to the first input end;

[0009] The conductive part of any one of the driving wire feeding wheel and the driven wire feeding wheel is connected to the second input end.

[0010] As an optional implementation, in the first aspect of the present application, the wire feeding control circuit further comprises a third input end and a second output end; the second output end is connected to the processor, and short-circuiting between the second input end and the third input end triggers the second output end to output a second electric signal;

[0011] The wire guide mechanism has a conductive part, and the conductive part is connected to the third input end.

[0012] As an optional implementation, in the first aspect of the present application, in the wire feeding control circuit, for the first input end, the second input end, and the third input end, one of the three is connected to a first electrode, and the other two are connected to a second electrode, and the first electrode and the second electrode are opposite in polarity.

[0013] As an optional implementation, in the first aspect of the present application, the first electric signal and / or the second electric signal are expressed in a TTL level jump manner.

[0014] As an optional implementation, in the first aspect of the present application, the automatic wire feeding bundling machine further comprises a switch, a spool cabin cover, and a wire feeding bundling switching circuit, wherein,

[0015] The wire feeding bundling switching circuit comprises a fourth input end, a fifth input end, and a third output end, the third output end is connected to the processor, and short-circuiting between the fourth input end and the fifth input end triggers the third output end to output a third electric signal;

[0016] The opening and closing of the spool cabin cover triggers the turn-on or turn-off of the switch, and the two ends of the switch are respectively connected to the fourth input end and the fifth input end.

[0017] As an optional implementation, in the first aspect of the present application, the bundled wire travel distance between the conductive part of any one of the driving wire feeding wheel and the driven wire feeding wheel and the conductive part of the wire inlet nozzle is configured to be 2-15mm; and / or,

[0018] The bundled wire travel distance between the conductive part of any one of the driving wire feeding wheel and the driven wire feeding wheel and the conductive part of the wire guide mechanism is configured to be 2-10mm.

[0019] The second aspect of the present application discloses a wire feeding control method, characterized in that the method is applied to the automatic wire feeding bundling machine described above, and the method comprises:

[0020] When the first electric signal is received, the processor drives the driving wire feeding wheel to rotate at a preset speed for a preset number of turns to push the bundled wire touching the gear meshing between the driving wire feeding wheel and the driven wire feeding wheel towards the wire guide mechanism by a preset feeding amount.

[0021] As an optional implementation, in the second aspect of the present application, the method further comprises:

[0022] When the second electric signal is received, the processor controls the driving wire feeding wheel to stop pushing the bundled wire.

[0023] As an optional implementation, in the second aspect of the present application, the speed of the preset speed is configured to be insufficient to injure hands in the process of pushing the bundled wire.

[0024] As an optional implementation, in the second aspect of the present application, the method further comprises:

[0025] When the third electric signal is received, if the first electric signal is received, the processor performs the operation of driving the driving wire feeding wheel to rotate at a preset speed for a preset number of turns;

[0026] When the third electric signal is not received, the processor does not receive the first electric signal.

[0027] Compared with the prior art, the embodiments of the present application have the following beneficial effects:

[0028] The embodiments of the present application trigger the control loop output electric signal by short-circuiting the conductive part between the wire inlet nozzle and the wire feeding wheel, control the driving wire feeding wheel to feed wire by the processor with the electric signal, can automatically sense whether the position of the bundled wire reaches the wire inlet nozzle, automatically start to perform the wire feeding action when it reaches, and thus can improve the accuracy and efficiency of determining whether the bundled wire is in the wire feeding start position, realize automatic wire feeding, and can improve the efficiency and safety of the wire feeding of the bundling machine compared with the case of manual direct wire feeding or opening the wire feeding wheel by the key and then manually feeding wire. Attached Figure Description

[0029] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0030] Figure 1 This is a schematic diagram of the structure of an automatic wire feeding and bundling machine disclosed in an embodiment of the present invention;

[0031] Figure 2 This is a schematic diagram of the structure of a wire feeding control circuit disclosed in an embodiment of the present invention;

[0032] Figure 3 This is a schematic diagram of an automatic wire feeding and bundling machine with the wire reel cover open, as disclosed in an embodiment of the present invention.

[0033] Figure 4 This is a schematic diagram of the structure of a wire feeding and bundling switching circuit disclosed in an embodiment of the present invention;

[0034] Figure 5 This is a schematic diagram of another automatic wire feeding and bundling machine disclosed in an embodiment of the present invention;

[0035] Figure 6 This is a schematic flowchart of a wire feeding control method disclosed in an embodiment of the present invention;

[0036] Figure 7 This is a schematic diagram of the structure of a wire feed nozzle disclosed in an embodiment of the present invention;

[0037] Figure 8 This is a cross-sectional schematic diagram of a wire feed nozzle disclosed in an embodiment of the present invention;

[0038] Figure 9 This is a schematic diagram of the structure of a wire guide mechanism disclosed in an embodiment of the present invention;

[0039] Figure 10 This is a cross-sectional schematic diagram of a wire guide mechanism disclosed in an embodiment of the present invention. Detailed Implementation

[0040] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0041] Embodiment one

[0042] Referring to Figure 1 , Figure 1 A structure diagram of an automatic wire feeding bundling machine based on an electric signal is disclosed. The automatic wire feeding bundling machine comprises a wire guiding mechanism 1, a driven wire feeding wheel 2, a driving wire feeding wheel 3, a wire feeding nozzle 4, a wire reel 6 for providing bundling wire 5, a wire feeding motor 7 and a processor 8; the wire feeding motor 7 is controlled by the processor 8 to drive the driving wire feeding wheel 3 to rotate; wherein,

[0043] At least one of the driving wire feeding wheel 3 and the driven wire feeding wheel 2 and the wire feeding nozzle 4 has a conductive part;

[0044] The automatic wire feeding bundling machine is provided with a wire feeding control circuit, the wire feeding control circuit comprises a first input end, a second input end and a first output end, the first output end is connected to the processor 8, wherein the short connection between the first input end and the second input end triggers the first output end to output a first electric signal;

[0045] The conductive part of the wire feeding nozzle 4 is connected to the first input end;

[0046] The conductive part of any one of the driving wire feeding wheel 3 and the driven wire feeding wheel 2 is connected to the second input end.

[0047] In the embodiment of the present application, as shown in the figure, Figure 1 The wire feeding motor 7 is electrically connected to the processor 8, the output end of the wire feeding motor 7 is a gear meshing with the driving wire feeding wheel 3, and the wire feeding motor 7 drives the driving wire feeding wheel 3 to rotate by driving the gear.

[0048] In the embodiment of the present application, the conductive part between the wire feeding nozzle and the wire feeding wheel is short-circuited by the bundling wire to trigger the control circuit to output an electric signal, and the processor controls the driving wire feeding wheel to feed wire with the electric signal, which can automatically sense whether the position of the bundling wire reaches the wire feeding nozzle, and automatically start the wire feeding action when it reaches, thereby improving the accuracy and efficiency of determining whether the bundling wire is in the wire feeding start position, realizing automatic wire feeding, and improving the efficiency and safety of the bundling machine wire feeding compared with manual direct wire feeding or key opening wire feeding wheel and then manual wire feeding.

[0049] In an optional embodiment, the wire feeding control circuit further comprises a third input end and a second output end; the second output end is connected to the processor 8, and the short connection between the second input end and the third input end triggers the second output end to output a second electric signal;

[0050] The wire guiding mechanism 1 has a conductive part which is connected to the third input end.

[0051] In the optional embodiment, when the second electrical signal is received, the processor 8 controls the capstan 3 to stop advancing the binding wire 5.

[0052] The optional embodiment short-circuits the conductive part between the wire guide mechanism and the wire inlet nozzle by the binding wire reaching the wire guide mechanism, triggers the control loop to output an electrical signal, and makes the processor stop the capstan from advancing the binding wire according to the electrical signal, so that it can be determined whether the binding wire reaches the wire guide mechanism, improves the accuracy and efficiency of determining whether the binding wire reaches the wire guide mechanism, and helps to further complete the automatic wire feeding process and improve the efficiency of automatic wire feeding.

[0053] In yet another optional embodiment, in the wire feeding control loop, one of the first input, the second input and the third input is connected to the first electrode, and the other two are connected to the second electrode, and the first electrode and the second electrode are opposite in polarity.

[0054] In the optional embodiment, for example Figure 2 As shown in a wire feeding control loop, 1 is the first input, 2 is the second input, and 3 is the third input. The loop further includes resistors R1, R2, R3, R4, capacitors C1, C2, voltage stabilizing diodes DZ1, DZ2, a power supply and a ground terminal. Among them, the first input is connected to the ground terminal, and is connected to the first output through capacitor C1, and is also connected to the second output through capacitor C2; the second input is connected to the power supply through resistor R2, and is connected to the first output through resistor R4; the third input is connected to the power supply through resistor R1, and is connected to the second output through resistor R3.

[0055] In yet another optional embodiment, the first electrical signal and / or the second electrical signal is in the form of TTL level jump.

[0056] In yet another optional embodiment, as shown in Figure 3 The automatic wire feeding binding machine further includes a switch 9, a wire reel cabin cover 10 and a wire feeding binding switching circuit, wherein,

[0057] The wire feeding binding switching circuit includes a fourth input, a fifth input and a third output, the third output is connected to the processor 8, and the short circuit between the fourth input and the fifth input triggers the third output to output a third electrical signal;

[0058] The opening and closing of the wire reel cabin cover 10 triggers the closing or opening of the switch 9, and the two ends of the switch 9 are connected to the fourth input and the fifth input respectively.

[0059] Optionally, the wire feeding bundling switching circuit can comprise a first resistor, a second resistor, a first capacitor, a power supply and a ground terminal, wherein the first input terminal is connected to one end of the first resistor; the other end of the first resistor is connected to the power supply and connected to the third output terminal through the second resistor; the second input terminal is connected to the ground terminal and connected to the third output terminal through the first capacitor.

[0060] In the optional embodiment, for example Figure 4 As shown in a wire feeding bundling switching circuit, the wire feeding control circuit JP1 in which 1 is a fourth input terminal and 2 is a fifth input terminal, the circuit further comprises a resistor R5, a resistor R6, a capacitor C3, a power supply and a ground terminal, wherein the fourth input terminal is connected to one end of the resistor R5; the other end of the resistor R5 is connected to the power supply and connected to the third output terminal (hatch-cover) through the resistor R6; the fifth input terminal is connected to the ground terminal and connected to the third output terminal through the capacitor C3. When the fourth input terminal and the fifth input terminal of the circuit are short-circuited, the circuit outputs a third electrical signal, which is used for automatic wire feeding operation when the wire spool hatch cover is opened, to avoid hand injury caused by too fast wire drawing speed during bundling (the rotation speed of the wire feeding wheel during bundling is faster than that during automatic wire feeding); when the wire spool hatch cover is closed, no automatic wire feeding operation is performed, only bundling operation is performed, and the situation that the bundled wire and the wire feeding wheel or the wire guide mechanism are touched to send the wire due to poor contact is reduced.

[0061] The optional embodiment triggers the on-off of the switch by the opening and closing of the wire spool hatch cover, controls the short-circuiting of the two input terminals of the wire feeding bundling switching circuit through the on-off of the switch, can output an electrical signal for control, and can reduce the situation of hand injury and accidental touch to send the wire.

[0062] In yet another optional embodiment, the switch 9 is a key switch or a press-sensitive switch; the switch 9 is arranged at the non-wire spool hatch cover part of the bundling machine or the wire spool hatch cover 10, and the closing of the wire spool hatch cover 10 presses the trigger end of the switch 9.

[0063] The optional embodiment triggers the on-off of the switch by the opening and closing of the wire spool hatch cover, which is helpful for subsequent output of an electrical signal for control through the on-off of the switch.

[0064] In yet another optional embodiment, as shown in Figure 3 The wire spool hatch cover 10 is a flip type hatch cover, the hatch cover comprises a locking member 101, the locking member 101 is away from the hinge part 102 of the wire spool hatch cover; the hinge part 102 of the wire spool hatch cover is hinged to the non-wire spool hatch cover part of the bundling machine; and the switch 9 is adjacent to the locking member 101.

[0065] The optional embodiment sets the switch adjacent to the locking piece. Since the locking piece is far away from the hinge, the user exerts greater force on the locking piece area when closing the wire drum hatch, compared to other areas, thereby reducing the situation of poor switch contact, and further improving the accuracy of subsequent electrical signal output.

[0066] In yet another optional embodiment, the switch 9 is a light-reflecting photoelectric switch, including a light emitter and a light receiver. The light emitter is arranged on the wire drum hatch surface or the non-wire drum hatch part of the bundling machine, and the light receiver is arranged to be aligned with the position of the light emitter when the wire drum hatch surface is closed.

[0067] The switch 9 is arranged to be embedded in the first contact of the wire drum hatch and the second contact of the bundling machine. When the wire drum hatch is closed, the first contact is in contact with the second contact. The first contact is electrically connected to the first input end, and the second contact is electrically connected to the second input end.

[0068] In yet another optional embodiment, the third electrical signal is expressed in a TTL level jump manner.

[0069] In yet another optional embodiment, the conductive part of any one of the driving wire feeding wheel 3 and the driven wire feeding wheel 2, and the conductive part of the wire inlet nozzle 4 are configured to have a bundling wire travel distance of 2-15mm; and / or,

[0070] The conductive part of any one of the driving wire feeding wheel 3 and the driven wire feeding wheel 2, and the conductive part of the wire guide mechanism 1 are configured to have a bundling wire travel distance of 2-10mm.

[0071] In physical common sense, when the diameter of the wire does not change, the longer the length of the wire, the greater the resistance of the wire. This optional embodiment limits the bundling wire travel distance to a reasonable and small range, which helps to limit the resistance of the bundling wire during short-circuiting to a small resistance range, reduces the situation that short-circuiting cannot be achieved due to excessive resistance, and thereby improves the stability of short-circuiting through the bundling wire.

[0072] In yet another optional embodiment, as shown in Figure 1 The bundling machine further includes a round forming mechanism 11 (including a round forming plate 111 and a guide 112), a wire winding assembly 12, a wire winding motor 13 for driving the wire winding assembly 12 to rotate, and a PCB board 14 for controlling the operation of the wire winding motor 13. The round forming mechanism 11, the wire winding assembly 12, and the wire winding motor 13 are on the same axis.

[0073] The PCB 14 is placed along the direction parallel to the axis and below the wire-wound motor 13, and has an extension extending to the rear end of the wire-wound motor 13, and the PCB 14 comprises a communication component, a positioning component and a control component; the control component is arranged on the board surface of the PCB 14 facing the wire-wound motor 13, and the communication component and the positioning component are arranged on the back surface of the extension away from the wire-wound motor 13.

[0074] The optional embodiment sets the PCB below the motor, and since the motor generates hot air around when working, the hot air naturally rises, so that the heat transfer of the hot air generated by the motor to the PCB can be reduced; the communication component and the positioning component are arranged on the back surface of the PCB, so that the hot air can be further separated, and the motor radiation can be further away, so that the influence of electromagnetic interference on the components can be reduced.

[0075] Optionally, the communication component can comprise at least one of a WIFI component, a 4G component, an RF component and a Bluetooth component, and the positioning component can comprise at least one of a GPS component, a Beidou component, a Galileo component and a GLONASS component.

[0076] In still another optional embodiment, as shown in Figure 1 The bundling machine further comprises a box 15 for moisture and dust prevention, and the PCB 14 is arranged in the box 15.

[0077] In still another optional embodiment, as shown in Figure 5 The bundling machine further comprises an antenna 16, and a cavity is formed between the rear end of the wire-wound motor 13 and the inner wall of the shell of the bundling machine; the antenna 16 is arranged on the inner wall of the shell corresponding to the cavity; and the lead-out wire of the communication component is connected to the antenna 16.

[0078] The optional embodiment arranges the antenna on the inner wall of the shell corresponding to the cavity, away from the wire-wound motor, so that the electromagnetic interference of the motor can be reduced, and the communication quality of the antenna can be improved.

[0079] In still another optional embodiment, the board surface of the PCB 14 facing the wire-wound motor 13 is covered with sealing glue.

[0080] In the optional embodiment, the sealing glue is liquid glue which can be changed into solid after a period of placement, so that moisture and dust can be avoided. Optionally, the sealing glue can also be a material having heat conduction effect.

[0081] In still another optional embodiment, the back surface of the PCB 14 away from the wire-wound motor 13 is provided with a grounding layer, and the grounding layer is subjected to copper plating treatment.

[0082] The optional embodiment can realize the function of isolating the direct radiation of electromagnetic field by coppering the PCB board.

[0083] Optionally, as shown in Figure 5 The box body of the PCB board 14 is detachably embedded into the clamping groove 17.

[0084] Referring to Figure 6 , Figure 6 A flowchart of a wire feeding control method disclosed by the embodiment is shown in the figure, and the wire feeding control method comprises the following steps.

[0085] S101, when the first electric signal is received, the processor drives the active wire feeding wheel to rotate at a preset speed for a preset number of turns, so as to push the bundled wire touching the gear meshing between the active wire feeding wheel and the driven wire feeding wheel towards the wire guide mechanism by a preset feeding amount.

[0086] In the embodiment, the preset speed is configured to be insufficient to injure hands during the pushing of the bundled wire.

[0087] The embodiment determines the received first electric signal as a signal for starting wire feeding, which can improve the accuracy and efficiency of determining the wire feeding starting time; the processor is triggered by the electric signal to control the active wheel to rotate for a set number of turns, so as to control the wire feeding amount, which can improve the efficiency and accuracy of the wire feeding of the bundling machine compared with the manual wire feeding in the prior art; the preset speed is configured to be insufficient to injure hands, which can reduce the hand injury caused by the high speed of the active wheel of the existing bundling machine.

[0088] In an optional embodiment, the method can further comprise:

[0089] When the second electric signal is received, the processor controls the active wire feeding wheel to stop pushing the bundled wire.

[0090] The optional embodiment determines the received second electric signal as a signal for stopping pushing the bundled wire, which can improve the accuracy and efficiency of determining the wire feeding stopping time.

[0091] In yet another optional embodiment, the method can further comprise:

[0092] When the third electric signal is received, if the first electric signal is received, the processor performs the operation of driving the active wire feeding wheel to rotate at a preset speed for a preset number of turns.

[0093] When the third electric signal is not received, the processor does not receive the first electric signal.

[0094] The optional embodiment determines the reception of the third electrical signal as a precondition for entering the automatic wire feeding procedure, and when the third electrical signal is not received, the automatic wire feeding operation is not performed, which can reduce the risk of hand injury (the user mistakenly touches the trigger when the wire reel cabin cover is opened, and when the user's hand is near the bundling wire, the user is easily injured by the rapid movement of the bundling wire due to the fast feeding speed of the bundling wire), and the poor contact between the bundling wire and the trigger, thereby improving the safety of the bundling machine.

[0095] Embodiment Two

[0096] The embodiment is based on embodiment one, and the automatic wire feeding bundling machine in embodiment one is changed from being based on an electrical signal to being based on an optical signal. The automatic wire feeding bundling machine of the embodiment also includes a wire guide mechanism 1, a driven wire feeding wheel 2, a driving wire feeding wheel 3, a wire feeding nozzle 4, a wire reel 6 for providing a bundling wire 5, a wire feeding motor 7, and a processor 8. The wire feeding motor 7 is controlled by the processor 8 to drive the driving wire feeding wheel 3 to rotate. Wherein,

[0097] An internal passage of the wire feeding nozzle 4 is provided with a first light sensing component, and an output end of the first light sensing component is electrically connected to the processor 8 and outputs a first signal to the processor 8 by sensing the light change caused by the bundling wire 5 passing through the wire feeding nozzle 4.

[0098] The embodiment of the application determines the trigger signal when the bundling wire passes through the wire feeding nozzle by arranging a light sensing component, and controls the driving wire feeding wheel to feed the wire by the processor based on the signal, which can automatically sense whether the bundling wire reaches the wire feeding nozzle, and automatically start the wire feeding action when the bundling wire reaches the wire feeding nozzle. Therefore, the accuracy and efficiency of determining whether the bundling wire is in the wire feeding start position can be improved, the automatic wire feeding can be realized, and the efficiency and safety of the wire feeding of the bundling machine can be improved compared with the case of manual direct wire feeding or key opening of the wire feeding wheel and then manual wire feeding.

[0099] In an optional embodiment, the first light sensing component is a light emitter and a light receiver, a groove type photoelectric sensor, or a pair of photoelectric sensors which are arranged on both sides of the internal passage of the wire feeding nozzle; or,

[0100] The first light sensing component is a light reflection plate type photoelectric switch, the light emitter and the light receiver of the light reflection plate type photoelectric switch are arranged on the same side of the internal passage of the wire feeding nozzle, and the light reflection plate is arranged at a position opposite to the light emitter and the light receiver of the internal passage of the wire feeding nozzle; or,

[0101] The first light sensing component is a diffuse reflection type photoelectric switch; or,

[0102] The first light sensing component is a light brightness sensor, the light sensing end of the light brightness sensor faces the internal passage of the wire feeding nozzle, and the first signal is output based on the light brightness change caused by the bundling wire passing through the wire feeding nozzle.

[0103] In another optional embodiment, the inside of the wire inlet nozzle is a hollow structure and the inside of the wire inlet nozzle forms an internal channel that penetrates from the top to the bottom, and the cross-sectional area of the internal channel of the wire inlet nozzle in the horizontal direction gradually decreases from the bottom to the top; the first light sensing component is arranged at the top of the internal channel of the wire inlet nozzle.

[0104] For example, a wire inlet nozzle is as shown in Figure 7 , Figure 8 is a cross-sectional view of the wire inlet nozzle, wherein the first light sensing component is arranged at the top of the wire inlet nozzle, and when the first light sensing component is a light-receiving type photoelectric sensor, Figure 8 18 is a light emitter, and 19 is a light receiver.

[0105] The binding wire enters from the bottom of the internal channel of the wire inlet nozzle, and because the internal space of the wire inlet nozzle is narrower closer to the top, the binding wire is fixed in place at the top of the wire inlet nozzle. This optional embodiment arranges the first light sensing component at the top of the wire inlet nozzle, thereby further improving the accuracy of determining the timing of starting the wire feeding.

[0106] In another optional embodiment, the wire inlet nozzle is arranged adjacent to the edge of the creel cover, and the closest distance between the wire inlet nozzle and the edge is 1-5 cm.

[0107] As can be seen from Figure 3 , the closer an object is to the edge of the creel cover, the greater the intensity of the light it receives. This optional embodiment arranges the wire inlet nozzle adjacent to the edge of the creel cover, and when the creel cover is opened, the binding wire passing through the area where the light sensing component is located causes greater changes in light, which helps to improve the accuracy and efficiency of determining whether the binding wire is in the target position.

[0108] In another optional embodiment, the automatic wire feeding binding machine further comprises a wire guide mechanism;

[0109] The internal channel of the wire guide mechanism is provided with a second light sensing component, and the output end of the second light sensing component is connected to the processor and outputs a second signal to the processor by sensing the light changes caused by the binding wire passing through the wire guide mechanism.

[0110] In this optional embodiment, when the second signal is received, the processor 8 controls the active wire feeding wheel 3 to stop advancing the binding wire 5.

[0111] This optional embodiment determines the trigger signal when the binding wire enters the wire guide mechanism by arranging a light sensing component, and makes the processor stop the wire feeding of the active wire feeding wheel with this signal, which can automatically sense whether the binding wire enters the wire guide mechanism, improves the accuracy and efficiency of determining whether the binding wire enters the wire guide mechanism, and helps to further complete the automatic wire feeding process and improve the efficiency of automatic wire feeding.

[0112] In another optional embodiment, the guide wire mechanism is a pipe structure, and the second light sensing component is arranged at the top or bottom of the internal passage of the guide wire mechanism.

[0113] For example, a guide wire mechanism is as shown in Figure 9 , Figure 10 is a sectional view of the guide wire mechanism, in which the second light sensing component is arranged at the bottom of the guide wire mechanism, and when the second light sensing component is a back-illuminated photoelectric sensor, Figure 10 In the figure, 20 is a light emitter, and 21 is a light receiver.

[0114] The optional embodiment arranges the light sensing component of the guide wire mechanism at the bottom, which helps to determine the time when the bundled wire just enters the guide wire mechanism as the time to stop the wire feeding of the driving wire feeding wheel, and can improve the accuracy and efficiency of determining the time to stop the wire feeding of the driving wire feeding wheel.

[0115] The embodiments disclosed in the content of the present application are only the preferred embodiments of the present application, and are only used to illustrate the technical solutions of the present application, but not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that; the technical solutions recorded in the foregoing embodiments can be modified, or some technical features can be replaced equivalently; and these modifications or replacements do not make the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. An automatic wire feeding bundling machine based on electric signal, comprising a wire inlet nozzle, a driving wire feeding wheel, a driven wire feeding wheel, a wire feeding motor, a wire guide mechanism and a processor, and a wire reel for providing a bundling wire; the wire feeding motor is controlled by the processor to drive the driving wire feeding wheel to rotate; characterized in that, at least one of the driving wire feeding wheel and the driven wire feeding wheel, and the wire inlet nozzle have a conductive part; the automatic wire feeding bundling machine is provided with a wire feeding control circuit, the wire feeding control circuit comprises a first input end, a second input end and a first output end, the first output end is connected to the processor, wherein a short circuit between the first input end and the second input end triggers the first output end to output a first electric signal; the conductive part of the wire inlet nozzle is connected to the first input end; the conductive part of any one of the driving wire feeding wheel and the driven wire feeding wheel is connected to the second input end.

2. The automatic wire feeding strapping machine of claim 1, wherein, the wire feeding control circuit further comprises a third input end and a second output end; the second output end is connected to the processor, and a short circuit between the second input end and the third input end triggers the second output end to output a second electric signal; the wire guide mechanism has a conductive part which is connected to the third input end.

3. The automatic wire feeding strapping machine of claim 2, wherein, In the wire feeding control circuit, for the first input end, the second input end and the third input end, one of the three is connected to a first electrode, and the other two are connected to a second electrode, the first electrode and the second electrode are opposite in polarity.

4. The automatic wire feeding strapping machine of claim 2, wherein, The first electric signal and / or the second electric signal are expressed in the form of TTL level jump.

5. The automatic wire feeding bundling machine according to claim 2 or 3, further comprising a switch, a wire reel cabin cover and a wire feeding bundling switching circuit, characterized in that, the wire feeding bundling switching circuit comprises a fourth input end, a fifth input end and a third output end, the third output end is connected to the processor, and a short circuit between the fourth input end and the fifth input end triggers the third output end to output a third electric signal; the opening and closing of the wire reel cabin cover triggers the turn-on or turn-off of the switch, and the two ends of the switch are connected to the fourth input end and the fifth input end respectively.

6. The automatic wire feeding bundling machine according to claim 2, characterized in that, the distance of the bundling wire running between the conductive part of any one of the driving wire feeding wheel and the driven wire feeding wheel and the conductive part of the wire inlet nozzle is configured to be 2-15 mm; and / or the distance of the bundling wire running between the conductive part of any one of the driving wire feeding wheel and the driven wire feeding wheel and the conductive part of the wire guide mechanism is configured to be 2-10 mm.

7. A wire feeding control method characterized by, The method is applied to the automatic wire feeding bundling machine according to any one of claims 1-6, and the method comprises: when the first electric signal is received, the processor drives the driving wire feeding wheel to rotate at a preset speed for a preset number of turns, so as to push the bundling wire which touches the gear meshing between the driving wire feeding wheel and the driven wire feeding wheel towards the wire guide mechanism by a preset feeding amount.

8. The wire feeding control method according to claim 7, characterized by, The wire feeding control circuit further comprises a third input end and a second output end; the second output end is connected to the processor, and a short circuit between the second input end and the third input end triggers the second output end to output a second electric signal; The method further comprises: When the second electric signal is received, the processor controls the active wire feeding wheel to stop advancing the binding wire.

9. The wire feeding control method according to claim 7, characterized by, The speed of the preset rotating speed is configured to be insufficient to injure hands in the process of advancing the binding wire.

10. The wire feeding control method according to claim 7, characterized by, The wire feeding control circuit further comprises a third input end and a second output end; the second output end is connected to the processor, and a short circuit between the second input end and the third input end triggers the second output end to output a second electric signal; the automatic wire feeding binding machine further comprises a switch, a wire disc cabin cover and a wire feeding binding switching circuit, the wire feeding binding switching circuit comprises a fourth input end, a fifth input end and a third output end, the third output end is connected to the processor, and a short circuit between the fourth input end and the fifth input end triggers the third output end to output a third electric signal; The method further comprises: When the third electric signal is received, if the first electric signal is received, the processor performs the operation of driving the active wire feeding wheel to rotate at a preset rotating speed for a preset number of turns; When the third electric signal is not received, the processor does not receive the first electric signal.

Images