CN111471951A - High-speed electric arc spraying wire feeder with closed-loop wire feeding speed display function - Google Patents
High-speed electric arc spraying wire feeder with closed-loop wire feeding speed display function Download PDFInfo
- Publication number
- CN111471951A CN111471951A CN201911384154.4A CN201911384154A CN111471951A CN 111471951 A CN111471951 A CN 111471951A CN 201911384154 A CN201911384154 A CN 201911384154A CN 111471951 A CN111471951 A CN 111471951A
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- Prior art keywords
- wire feeding
- current
- wire
- speed
- spraying
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- 238000005507 spraying Methods 0.000 title claims abstract description 35
- 238000010891 electric arc Methods 0.000 title abstract description 9
- 239000011248 coating agent Substances 0.000 claims abstract description 11
- 238000000576 coating method Methods 0.000 claims abstract description 11
- 239000007921 spray Substances 0.000 claims description 15
- 239000000463 material Substances 0.000 claims description 5
- 238000001514 detection method Methods 0.000 claims description 3
- 230000007246 mechanism Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 3
- 239000002245 particle Substances 0.000 claims description 3
- 238000004804 winding Methods 0.000 claims description 3
- 230000008569 process Effects 0.000 claims description 2
- 238000012544 monitoring process Methods 0.000 claims 1
- 230000003746 surface roughness Effects 0.000 abstract description 3
- 238000000889 atomisation Methods 0.000 abstract 1
- 230000008859 change Effects 0.000 description 4
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
- C23C4/12—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the method of spraying
- C23C4/131—Wire arc spraying
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Coating By Spraying Or Casting (AREA)
Abstract
The invention designs a high-speed electric arc spraying wire feeder with a closed-loop wire feeding speed display function. The current of the spraying electric arc is monitored, the obtained current value is fed back to the control system, the control system adjusts the wire feeding motor, the wire feeding speed is adjusted, the stability of the wire feeding machine determines the stability of the spraying current, and the jet atomization effect, the coating density and the coating surface roughness are influenced.
Description
Technical Field
The invention relates to the technical field of high-speed electric arc spraying, in particular to a closed-loop wire feeding speed display high-speed electric arc spraying wire feeder.
Background
Traditional electric arc spraying send a machine to all adopt open-loop motor drive wire feeding mechanism to send out the spraying silk from contact tip, and the spraying in-process, along with the removal of spray gun, send the appearance and the position of silk pipe also along with changing, along with the increase of sending the silk volume, send foreign matter such as dust in the silk pipe also can increase to send a resistance to also incessantly change. The change of the wire feeding resistance can cause the change of the speed of the wire feeding motor, thereby causing the change of the spraying current, and the atomized particles are thicker, the porosity of the coating is high, the bonding strength of the coating is low, and the surface roughness of the coating is large.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a high-speed arc spraying wire feeder with a closed-loop wire feeding speed display function, so as to solve the problems of unstable wire feeding speed and the like in the prior art.
In order to achieve the purpose, the invention is realized by the following technical scheme:
a high-speed wire feeder with closed-loop wire feeding speed display for arc spraying is disclosed. The arc spraying direct current power supply can provide high power and large current, is directly conducted with wire materials through a direct current cable, and generates an arc at a spray gun head.
Further, the wire enters the wire feeder through the wire winding wheel, and the wire processed by the wire feeding roller wheel enters the spray gun.
Further, in order to provide high-pressure gas for the spray gun head, the high-pressure gas source directly senses the current in the direct-current cable and sends a signal to the automatic controller, the automatic controller comprises an amplifier, a peak detector, a trough detector, a preset setter, a comparator and an integrator, and after the signal from the current sensor is amplified by the amplifier, the state of the current when the spray gun works can be detected through the analysis of the peak sensor and the trough sensor, namely whether the current is in an arc breaking state or an open circuit state, or is close to the two states, or is in a normal working state. After detection, an indicator light should be provided to indicate the status result and remind the operator to take different measures.
Furthermore, the result detected by the automatic controller is directly transmitted to a comparator, and compared with the data set in the preset setter to know how to perform the next operation, the information obtained from the preset setter and the comparator is processed by the integrator, and a proper signal is output to the motor controller of the DC driving motor to control the armature voltage of the wire feeding motor, so as to achieve the purpose of controlling the rotating speed of the motor.
The invention has the advantages that: by the closed-loop control process, the range of the current can be set to control the wire feeding speed, so that the corresponding relation between the current and the wire feeding speed can be ensured during working, and frequent short circuit and arc breakage can not be caused.
The invention has the advantages that: the current of the spraying electric arc is monitored, the obtained current value is fed back to the control system and is compared with a set value, so that a feedback voltage is output to act on the wire feeding motor, and the wire conveying speed is adjusted by adjusting the speed of the wire feeding motor.
The invention has the advantages that: the wire feeding mechanism is driven by the closed-loop motor, and the wire feeding speed can be kept unchanged under the conditions that the spray gun moves and foreign matters of the wire feeding pipe are increased, so that the stable spraying current is ensured, the atomized particles are fine and smooth, the porosity of the coating is low, the bonding strength of the coating is high, and the surface roughness of the coating is small.
The invention has the advantages that: the closed-loop high-speed electric arc spraying wire feeder can also digitally display the real-time wire feeding speed and grasp the spraying efficiency all the time.
The invention also has the following characteristics:
1. closed-loop control, stable wire feeding and large wire feeding torque;
2. the wire feeding speed is digitally displayed in real time, and the spraying efficiency can be mastered constantly;
3. the structure is reasonable, and the appearance is elegant;
4. the universal moving wheel is arranged, so that the spray gun can easily move under the condition that the length of a spray gun cable is limited, and large-range spraying is realized;
5. the spray gun, the cable and the air pipe are firmly connected and can be quickly disassembled and assembled.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings, but it should be noted that the present invention is not limited to the following embodiments.
Referring to fig. 1, the invention discloses a closed-loop wire feeding speed display high-speed arc spraying wire feeder. The arc spraying direct current power supply comprises an arc spraying direct current power supply 1, wherein the arc spraying direct current power supply can provide high power and large current, is directly communicated with wires 16 through a direct current cable, and generates an arc at a spray gun head 6.
Preferably, the wire enters the wire feeder 3 through the wire winding wheel 17, and the wire processed by the wire feeding roller 5 enters the spray gun.
Preferably, the high-pressure gas source 7, in order to provide high-pressure gas for the lance head 6, the current sensor 2 directly senses the current in the dc cable and sends a signal to the automatic controller 9, the automatic controller 9 includes an amplifier 10, a peak detector 11, a valley detector 12, a preset setter 13, a comparator 14, and an integrator 15, and after the signal from the current sensor 2 is amplified by the amplifier 10, the state of the current during the operation of the lance, whether the current is in an arc breaking state or an arc breaking state, whether the current is close to the arc breaking state or the arc breaking state, or whether the current is in a normal operation state, can be detected through the analysis of the peak sensor 11 and the valley sensor 12. After detection, an indicator light should be provided to indicate the status result and remind the operator to take different measures.
Preferably, the result detected by the automatic controller 9 is directly transmitted to a comparator 14, and compared with the data set in the preset setter 13 to know how to proceed with the next operation, the information obtained from the preset setter 13 and the comparator 14 is processed by an integrator 15, and an appropriate signal is output to the motor controller 8 of the dc driving motor 4 to control the armature voltage of the wire feeding motor, so as to achieve the purpose of controlling the motor speed.
The above embodiments are described in detail for the purpose of further illustrating the present invention and should not be construed as limiting the scope of the present invention, and the skilled engineer can make insubstantial modifications and variations of the present invention based on the above disclosure.
Claims (4)
1. A high-speed arc spraying wire feeder with a closed-loop wire feeding speed display function is characterized by comprising an arc spraying direct-current power supply (1), wherein the arc spraying direct-current power supply can provide high power and large current, is directly conducted with a wire material (16) through a direct-current cable, and generates an arc at a spraying gun head (6). The wire material enters the wire material feeding machine (3) through the wire winding wheel (17), and the wire material processed by the wire feeding roller wheel (5) enters the spray gun. The high-pressure gas source (7) provides high-pressure gas for the spray gun head (6), the current sensor (2) directly senses the current in a direct-current cable and sends a signal to the automatic controller (9), the automatic controller (9) comprises an amplifier (10), a peak detector (11), a trough detector (12), a preset setter (13), a comparator (14) and an integrator (15), and after the signal from the current sensor (2) is amplified by the amplifier (10), the state of the current when the spray gun works can be detected through the analysis of the peak sensor (11) and the trough sensor (12), namely the state of arc breaking or circuit breaking, or the state close to the two states, or the state of normal work. After detection, an indicator light should be provided to indicate the status result and remind the operator to take different measures. The result detected by the automatic controller (9) is directly transmitted to a comparator (14) and compared with the data set in the preset setter (13) to know how to carry out the next operation, the information obtained from the preset setter (13) and the comparator (14) is processed by an integrator (15) and outputs a proper signal to enter a motor controller (8) of the direct current driving motor (4) to control the armature voltage of the wire feeding motor, thereby achieving the purpose of controlling the rotating speed of the motor. By the closed-loop control process, the range of the current can be set to control the wire feeding speed, so that the corresponding relation between the current and the wire feeding speed can be ensured during working, and frequent short circuit and arc breakage can not be caused.
2. The high speed arc spraying wire feeder of claim 1, wherein the wire feeding speed is adjusted by monitoring the current of the spraying arc, feeding the current value back to the control system, comparing it with a set value, and outputting a feedback voltage to the wire feeding motor to adjust the wire feeding speed.
3. The high-speed arc spraying wire feeder with the closed-loop wire feeding speed display according to claim 1 is characterized in that a wire feeding mechanism is driven by a closed-loop motor, and the wire feeding speed can be kept unchanged under the conditions that a spray gun moves and foreign matters are increased in a wire feeding pipe, so that the stable spraying current is ensured, atomized particles are fine and smooth, the porosity of a coating is low, the bonding strength of the coating is high, and the roughness of the surface of the coating is small.
4. The high-speed arc spraying wire feeder with the closed-loop wire feeding speed display according to claim 1, wherein the closed-loop high-speed arc spraying wire feeder can also display the real-time wire feeding speed digitally to grasp the spraying efficiency all the time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911384154.4A CN111471951A (en) | 2019-12-28 | 2019-12-28 | High-speed electric arc spraying wire feeder with closed-loop wire feeding speed display function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911384154.4A CN111471951A (en) | 2019-12-28 | 2019-12-28 | High-speed electric arc spraying wire feeder with closed-loop wire feeding speed display function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111471951A true CN111471951A (en) | 2020-07-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911384154.4A Pending CN111471951A (en) | 2019-12-28 | 2019-12-28 | High-speed electric arc spraying wire feeder with closed-loop wire feeding speed display function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111471951A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201183166Y (en) * | 2008-01-02 | 2009-01-21 | 杭州凯尔达电焊机有限公司 | Electric arc electrode feeding machine |
| CN203380030U (en) * | 2013-07-18 | 2014-01-08 | 航天材料及工艺研究所 | Digital control inverse electric arc spraying device |
| CN211897080U (en) * | 2019-12-28 | 2020-11-10 | 石河子大学 | High-speed electric arc spraying wire feeder with closed-loop wire feeding speed display function |
-
2019
- 2019-12-28 CN CN201911384154.4A patent/CN111471951A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201183166Y (en) * | 2008-01-02 | 2009-01-21 | 杭州凯尔达电焊机有限公司 | Electric arc electrode feeding machine |
| CN203380030U (en) * | 2013-07-18 | 2014-01-08 | 航天材料及工艺研究所 | Digital control inverse electric arc spraying device |
| CN211897080U (en) * | 2019-12-28 | 2020-11-10 | 石河子大学 | High-speed electric arc spraying wire feeder with closed-loop wire feeding speed display function |
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