CN112958306B

CN112958306B - Alternating current electric arc spraying equipment

Info

Publication number: CN112958306B
Application number: CN202110142190.0A
Authority: CN
Inventors: 吴正鑫; 刘赫海
Original assignee: Shangrao Ruichi Fengda Auto Parts Co ltd
Current assignee: Shangrao Ruichi Fengda Auto Parts Co ltd
Priority date: 2021-02-02
Filing date: 2021-02-02
Publication date: 2023-03-28
Anticipated expiration: 2041-02-02
Also published as: CN112958306A

Abstract

The invention relates to the technical application field of spraying equipment, and particularly discloses alternating current electric arc spraying equipment which comprises a spraying box, wherein two symmetrical positive and negative rotating screw rods are rotationally connected in the spraying box, an upper lifting plate and a lower lifting plate are rotationally connected to the positive and negative rotating screw rods through threads, a power mechanism is arranged at the upper end of the spraying box, and two first fixing plates are fixedly connected to the lower lifting plate.

Description

Alternating current electric arc spraying equipment

Technical Field

The invention relates to spraying equipment, in particular to alternating current arc spraying equipment, and belongs to the technical application field of spraying equipment.

Background

With the development of spraying technology, pursuing high efficiency and individuation is the leading development direction, and in the field of practical engineering application, electric arc spraying methods are widely used in various high-precision surface engineering, such as spraying corrosion prevention and other surface treatment processes.

However, when the existing ac arc spraying equipment is used, the workpiece to be sprayed cannot be effectively fixed, when the workpiece is sprayed, the workpiece is easy to shake, so that the condition of uneven spraying is caused, the stability is not high, after the workpiece is sprayed, the workpiece needs to be moved into a drying device to be dried, the workpiece is moved back and forth, the working efficiency is greatly reduced, the practicability is low, meanwhile, the existing ac arc spraying equipment does not have the function of purifying harmful gas, and therefore discharged gas can cause serious influence on the health of workers and the environment, and therefore the ac arc spraying equipment capable of solving the problems is urgently needed.

Disclosure of Invention

The invention aims to solve the problems that the existing alternating current arc spraying equipment cannot effectively fix a workpiece to be sprayed, does not have a drying function and a purifying function when in use, and provides the alternating current arc spraying equipment.

In order to achieve the purpose, the invention adopts the following technical scheme:

the utility model provides an alternating current electric arc spraying equipment, includes the spraying case, spraying incasement rotation is connected with two symmetrical positive reverse lead screws, rotate through the screw thread on the positive reverse lead screw and be connected with lifter plate, lower lifter plate, spraying case upper end is equipped with power unit, power unit's output runs through in the spraying case, and with positive reverse lead screw fixed connection, two first fixed plates of fixedly connected with on the lifter plate down, first fixed plate inboard is equipped with splint, the first motor of lifter plate one side fixedly connected with down, the first pivot of output fixedly connected with of first motor, the one end that first motor was kept away from to first pivot runs through in first fixed plate, and with any splint fixed connection keeps away from fixedly connected with the cylinder on the first fixed plate of first motor, sliding connection has first piston in the cylinder, be equipped with expanding spring in the cylinder, expanding spring's both ends are connected with cylinder, first piston respectively, expanding spring's one end is kept away from to first piston is connected with another splint rotation, the one end that the spraying incasement is close to the cylinder is equipped with the mechanism of aerifing, the power input and the lifter plate of mechanism, lower lifter plate are connected through the spraying case both sides of belt coupling mechanism, the belt is equipped with the spraying mechanism, the belt coupling mechanism, the belt is equipped with the spraying case both sides of drying mechanism, the spraying mechanism, the belt is equipped with the spraying mechanism.

Preferably, power unit includes output motor, driving shaft, first action wheel, fixed connection between output motor and the spraying case, first action wheel fixed connection is at the output of output motor, the lower extreme of driving shaft run through in the spraying case, and with just reverse lead screw fixed connection, the first follow driving wheel of upper end fixedly connected with of driving shaft, first action wheel and first follow driving wheel are connected through the belt.

Preferably, the driving shaft is rotatably connected with the spraying box through a bearing, a protective cover is arranged on the outer side of the power mechanism, and the protective cover is connected with the spraying box.

Preferably, the inflation mechanism comprises a double-opening sleeve, a second piston and a conveying pipe, the double-opening sleeve and the spraying box are fixedly connected through a connecting rod, the second piston is connected to two sides of the double-opening sleeve in a sliding mode, the two ends, far away from the double-opening sleeve, of the second piston are connected with an upper lifting plate and a lower lifting plate respectively, and an air outlet of the double-opening sleeve is connected with an air inlet of the air cylinder through the conveying pipe.

Preferably, the air inlet and outlet of the double-opening sleeve are provided with one-way valves, and the air outlet of the cylinder is provided with an air release valve.

Preferably, the spraying mechanism comprises a reciprocating lead screw, a moving block and spraying equipment, the reciprocating lead screw is rotatably connected with a second fixing plate, one end, close to the first motor, of the second fixing plate is rotatably connected with a driven shaft, the driven shaft is fixedly connected with a second driven wheel, one end, far away from the second driven wheel, of the driven shaft penetrates through the second fixing plate and is fixedly connected with the reciprocating lead screw, a second driving wheel is fixedly connected with the first rotating shaft, the second driving wheel is connected with the second driven wheel through a belt, the reciprocating lead screw is rotatably connected with the moving block through threads, the two second fixing plates are fixedly connected with fixing rods, the moving block is slidably connected with the fixing rods, and the spraying equipment is fixedly connected to the lower end of the moving block.

Preferably, straining device includes first sleeve, telescopic link, tensioning spring, take-up pulley, first sleeve fixed connection is on the spraying case, tensioning spring fixed connection is in first sleeve, telescopic link sliding connection in first sleeve, and with tensioning spring fixed connection, the one end and the take-up pulley rotation connection that tensioning spring was kept away from to the telescopic link, the belt phase-match between take-up pulley and second action wheel, the second driven wheel.

Preferably, the drying mechanism comprises a heater and a first fan, the heater and the first fan are fixedly connected with the spraying box, the first fan is connected with the heater through a first air pipe, and an air outlet of the first fan penetrates through the spraying box.

Preferably, purification mechanism includes purifying box, second fan, purifying box, second fan all with spraying case fixed connection, be connected through the second trachea between purifying box and the second fan, the air intake of second fan runs through in the spraying case.

Preferably, one side of the spraying box is rotatably connected with a box door through a hinge, the box door is provided with a transparent plate, and the inner side surface of the box door is connected with a sealing strip.

Compared with the prior art, the invention provides alternating current arc spraying equipment which has the following beneficial effects:

1. this alternating current electric arc spraying equipment, setting through aerifing the mechanism, can go on further pressing from both sides tight fixed to the work piece, improve the stability of work piece when rotating, setting through straining device, work as the lifter plate, when lower lifter plate is close to each other, can make the belt be in tight state all the time, improve the stability of spraying mechanism at the during operation, setting through stoving mechanism, when carrying out the spraying to the work piece, just can dry to the work piece surface, the effectual work efficiency that has improved, setting through purification mechanism, can adsorb the purification to the harmful substance that produces when spraying, thereby make the gas that discharges to go can not lead to the fact the influence to staff's health and environment, setting through above mechanism, the effectual practicality that has improved this equipment, make this equipment satisfy the work demand of staff when using.

Drawings

FIG. 1 is a schematic structural diagram of an AC arc spraying apparatus according to the present invention;

FIG. 2 is a schematic structural diagram of a portion A of FIG. 1 of an AC arc spraying apparatus according to the present invention;

FIG. 3 is a schematic structural diagram of a portion B of the AC arc spraying apparatus of the present invention shown in FIG. 1;

FIG. 4 is a schematic structural diagram of a portion C in FIG. 1 of an AC arc spraying apparatus according to the present invention;

FIG. 5 is a schematic structural diagram of a tensioning mechanism of an AC arc spraying apparatus according to the present invention;

fig. 6 is a schematic structural diagram of a door of an ac arc spraying apparatus according to the present invention.

In the figure: 1. a spraying box; 2. an output motor; 3. a drive shaft; 4. a protective cover; 5. a forward and reverse rotation screw rod; 6. an upper lifting plate; 7. a lower lifting plate; 8. a first motor; 9. a first fixing plate; 10. a splint; 11. a heater; 12. a first fan; 13. a second piston; 14. a purification box; 15. a second fan; 17. a second fixing plate; 18. a reciprocating screw rod; 19. a driven shaft; 20. fixing the rod; 21. a moving block; 22. a cylinder; 23. a first piston; 24. a delivery pipe; 25. a double-opening sleeve; 28. a first sleeve; 29. tensioning the spring; 30. a telescopic rod; 31. a tension wheel; 101. a box door; 102. a sealing strip; 103. a transparent plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the application described herein may be used. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

In this application, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings. These terms are used primarily to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation.

Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meaning of these terms in this application will be understood by those of ordinary skill in the art as appropriate.

Furthermore, the terms "mounted," "disposed," "provided," "connected," and "coupled" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.

Example 1:

referring to fig. 1 and 3, an alternating current electric arc spraying device comprises a spraying box 1, two symmetrical positive and negative rotation screw rods 5 are rotatably connected in the spraying box 1, an upper lifting plate 6 and a lower lifting plate 7 are rotatably connected on the positive and negative rotation screw rods 5 through threads, a power mechanism is arranged at the upper end of the spraying box 1, the output end of the power mechanism penetrates through the spraying box 1 and is fixedly connected with the positive and negative rotation screw rods 5, two first fixing plates 9 are fixedly connected on the lower lifting plate 7, clamping plates 10 are arranged on the inner sides of the first fixing plates 9, a first motor 8 is fixedly connected on one side of the lower lifting plate 7, a first rotating shaft is fixedly connected with the output end of the first motor 8, one end of the first rotating shaft, far away from the first motor 8, penetrates through the first fixing plates 9 and is fixedly connected with any one clamping plate 10, keep away from fixedly connected with cylinder 22 on first fixed plate 9 of first motor 8, sliding connection has first piston 23 in the cylinder 22, be equipped with expanding spring in the cylinder 22, expanding spring's both ends respectively with cylinder 22, first piston 23 is connected, expanding spring's one end and another splint 10 are rotated and are connected to first piston 23, the one end that is close to cylinder 22 in the spraying case 1 is equipped with the mechanism of aerifing, the power input end and the board 6 that goes up and down of mechanism of aerifing, it is connected with spraying mechanism to go up and down to be connected with through second fixed plate 17 on the board 6, be connected through the belt between spraying mechanism and the first pivot, spraying case 1 one side is equipped with the straining device who matches with the belt case, spraying case 1 both sides are equipped with stoving mechanism respectively, purify the mechanism.

When in use, the equipment is firstly moved to a designated working position, wherein the lower end of the spraying box 1 is fixedly connected with a base, the lower end of the base is connected with a self-locking universal wheel, the self-locking universal wheel is arranged to facilitate a user to move and fix the equipment, and prevent the equipment from shaking and influencing the working progress when in work, the self-locking universal wheel is the prior art, and redundant description is not needed here, after the equipment is fixed, the user places a workpiece to be sprayed between two clamping plates 10 to primarily fix the workpiece, then the user drives a forward and reverse screw rod 5 to rotate by starting a power mechanism, wherein the forward and reverse screw rod 5 is a bidirectional screw rod, the bidirectional screw rod rotates to drive an upper lifting plate 6 and a lower lifting plate 7 to simultaneously approach or depart from, the upper lifting plate 6 and the lower lifting plate 7 are controlled to approach each other at this time, so that the spraying equipment and the workpiece are moved to a proper position, stopping rotating the power mechanism, starting the first motor 8 to drive the first rotating shaft to rotate, driving the workpiece to rotate by the first rotating shaft, driving the spraying mechanism to move left and right by the belt by the first rotating shaft, starting the spraying mechanism to spray the workpiece while moving, and driving the spraying mechanism to move left and right while rotating the workpiece, so that the spraying mechanism can uniformly spray the workpiece, thereby effectively improving the spraying quality of the equipment and the practicability in use, wherein the spraying box 1 is provided with a tensioning mechanism matched with the belt, when the upper lifting plate 6 and the lower lifting plate 7 are close to each other, the belt can be always in a tight state by the arrangement of the tensioning mechanism, the stability of the spraying mechanism in moving is improved, wherein the spraying box 1 is also provided with an inflating mechanism, when going up lifter plate 6, when lower lifter plate 7 is close to each other, can aerify cylinder 22, thereby it is fixed to further press from both sides to carry out the clamp to the work piece, improve the stability of work piece when rotating, wherein spraying case 1 both sides still are equipped with stoving mechanism and purification mechanism, setting through stoving mechanism, when carrying out the spraying to the work piece, just can dry to the work piece surface, the effectual work efficiency that has improved, through purification mechanism's setting, can adsorb the purification to the harmful substance that produces when the spraying, thereby make the gas that discharges to cause the influence to staff's health and environment, the effectual practicality that improves this equipment when using.

Example 2:

referring to fig. 1, an alternating current arc spraying apparatus, substantially the same as in embodiment 1, further comprising: power unit includes output motor 2, driving shaft 3, first action wheel, fixed connection between output motor 2 and the spraying case 1, first action wheel fixed connection is at output motor 2's output, the lower extreme of driving shaft 3 runs through in spraying case 1, and with positive and negative rotation lead screw 5 fixed connection, the first follow driving wheel of upper end fixedly connected with of driving shaft 3, first action wheel is connected through the belt with first from between the driving wheel, when needs make the rising lifter plate 6, when lower lifter plate 7 is close to each other, start output motor 2 this moment, output motor 2 drives first action wheel and rotates, first action wheel drives first from the driving wheel rotation through the belt, first from driving wheel drives driving shaft 3 again and rotates, driving shaft 3 drives positive and negative rotation lead screw 5 again and rotates, thereby make the rising lifter plate 6, lower lifter plate 7 can be close to each other.

Example 3:

referring to fig. 1, an ac arc spraying apparatus, substantially the same as in embodiment 1, further comprising: the driving shaft 3 is rotatably connected with the spraying box 1 through a bearing, the protective cover 4 is arranged on the outer side of the power mechanism, the protective cover 4 is connected with the spraying box 1, abrasion of the driving shaft 3 can be reduced through the arrangement of the bearing, the service life is prolonged, the protective function can be achieved for the power mechanism through the arrangement of the protective cover 4, and the power mechanism can stably operate.

Example 4:

referring to fig. 1 and 4, an ac arc spraying apparatus, substantially the same as in embodiment 1, further comprising: the inflating mechanism comprises a double-opening sleeve 25, second pistons 13 and conveying pipes 24, the double-opening sleeve 25 is fixedly connected with the spraying box 1 through connecting rods, the second pistons 13 are connected to two sides of the double-opening sleeve 25 in a sliding mode, one ends, far away from the double-opening sleeve 25, of the two second pistons 13 are respectively connected with an upper lifting plate 6 and a lower lifting plate 7, an air outlet of the double-opening sleeve 25 is connected with an air inlet of an air cylinder 22 through the conveying pipes 24, when the upper lifting plate 6 and the lower lifting plate 7 are close to each other, the two second pistons 13 can be close to each other, air in the double-opening sleeve 25 is conveyed into the air cylinder 22 through the conveying pipes 24, the workpieces are further clamped and fixed, the stability of the workpieces during rotation is improved, when spraying is finished, the two second pistons 13 can be far away from each other along with the upper lifting plate 6 and the lower lifting plate 7, and then the double-opening sleeve 25 is inflated through the air inlets, and the double-opening sleeve 25 is convenient to use for the next time.

Example 5:

referring to fig. 3 and 4, an ac arc spraying apparatus, substantially the same as in embodiment 1, further comprising: the gas inlet and outlet of double-opening sleeve 25 all is equipped with the check valve, and the gas vent of cylinder 22 is equipped with the release valve, through the setting of check valve, can make that aerify the mechanism more stable aerify cylinder 22, through the setting of relief valve, can discharge unnecessary gas in the cylinder 22, improves the stability of cylinder 22 when using.

Example 6:

referring to fig. 1 and 2, an ac arc spraying apparatus, substantially the same as in embodiment 1, further comprising: the spraying mechanism comprises a reciprocating screw rod 18, a moving block 21 and spraying equipment, the reciprocating screw rod 18 is rotatably connected with a second fixing plate 17, one end, close to a first motor 8, of the second fixing plate 17 is rotatably connected with a driven shaft 19, a second driven wheel is fixedly connected onto the driven shaft 19, one end, far away from the second driven wheel, of the driven shaft 19 penetrates through the second fixing plate 17 and is fixedly connected with the reciprocating screw rod 18, a second driving wheel is fixedly connected onto a first rotating shaft, the second driving wheel and the second driven wheel are connected through a belt, the reciprocating screw rod 18 is rotatably connected with the moving block 21 through threads, fixing connecting fixing rods 20 are fixedly connected onto the two second fixing plates 17, the moving block 21 is slidably connected with the fixing rods 20, the spraying equipment is fixedly connected to the lower end of the moving block 21, when the workpiece is sprayed, the spraying equipment can move left and right under the action of the reciprocating screw rod 18, even spraying is further performed on the workpiece, and the spraying quality is improved.

Example 7:

referring to fig. 5, an alternating current arc spraying apparatus, substantially the same as in embodiment 1, further comprising: straining device includes first sleeve 28, telescopic link 30, tensioning spring 29, take-up pulley 31, first sleeve 28 fixed connection is on spraying case 1, tensioning spring 29 fixed connection is in first sleeve 28, telescopic link 30 sliding connection is in first sleeve 28, and with tensioning spring 29 fixed connection, the one end that tensioning spring 29 was kept away from to telescopic link 30 rotates with take-up pulley 31 to be connected, take-up pulley 31 and second action wheel, the second is from the belt phase-match between the driving wheel, work as lifter plate 6, when lower lifter plate 7 was close to each other, take-up pulley 31 can outwards move under tensioning spring 29's effect, and then make the belt be in tight state all the time, make its first motor 8 can drive spraying device and remove.

Example 8:

referring to fig. 1, an ac arc spraying apparatus, substantially the same as in embodiment 1, further comprising: drying mechanism includes heater 11, first fan 12, heater 11, first fan 12 all and spraying case between 1 fixed connection, be connected through first trachea between first fan 12 and the heater 11, the air outlet of first fan 12 runs through in spraying case 1, but when carrying out the spraying to the work piece, blow into spraying case 1 through the hot-air that first fan 12 made heater 11, and then carry out fast drying to the work piece, the user need not dry the work piece in moving the stoving case with the good work piece of spraying, this equipment can be dried by oneself to the work piece, the effectual work efficiency that has improved.

Example 9:

referring to fig. 1, an alternating current arc spraying apparatus, substantially the same as in embodiment 1, further comprising: purification mechanism includes purifying box 14, second fan 15, purifying box 14, second fan 15 all with 1 fixed connection of spraying case, be connected through the second trachea between purifying box 14 and the second fan 15, the air intake of second fan 15 runs through in spraying case 1, this equipment can be through 15 harmful gas inspiration purifying box 14 with spraying incasement 1 of second fan in, be equipped with the active carbon adsorption board in the purifying box 14, can adsorb harmful substance through the active carbon adsorption board, thereby make the gas that discharges to go can not lead to the fact the influence to the environment.

Example 10:

referring to fig. 6, an alternating current arc spraying apparatus, substantially the same as in embodiment 1, further comprising: spraying case 1 one side is connected with chamber door 101 through hinge rotation, is equipped with transparent plate 103 on the chamber door 101, and chamber door 101 inboard surface is connected with sealing strip 102, and through the setting of transparent plate 103, the person of facilitating the use observes the spraying condition in spraying case 1, through the setting of sealing strip 102, can play sealed effect to spraying case 1, prevents that harmful gas from wafting out in the gap, polluted environment.

The invention can further clamp and fix the workpiece through the arrangement of the inflating mechanism, improves the stability of the workpiece during rotation, can enable the belt to be always in a tight state when the upper lifting plate 6 and the lower lifting plate 7 are close to each other through the arrangement of the tensioning mechanism, improves the stability of the spraying mechanism during working, can dry the surface of the workpiece through the arrangement of the drying mechanism while spraying the workpiece, effectively improves the working efficiency, can adsorb and purify harmful substances generated during spraying through the arrangement of the purifying mechanism, thereby enabling the discharged gas not to influence the health and the environment of workers, effectively improving the practicability of the equipment through the arrangement of the mechanisms, and enabling the equipment to meet the working requirements of the workers during use.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims

1. The alternating current electric arc spraying equipment comprises a spraying box (1), and is characterized in that two symmetrical positive and negative rotation screw rods (5) are rotationally connected in the spraying box (1), an upper lifting plate (6) and a lower lifting plate (7) are rotationally connected on the positive and negative rotation screw rods (5) through threads, a power mechanism is arranged at the upper end of the spraying box (1), the output end of the power mechanism penetrates through the spraying box (1) and is fixedly connected with the positive and negative rotation screw rods (5), two first fixing plates (9) are fixedly connected on the lower lifting plate (7), a clamping plate (10) is arranged on the inner side of each first fixing plate (9), a first motor (8) is fixedly connected on one side of the lower lifting plate (7), a first rotating shaft is fixedly connected with the output end of the first motor (8), one end, far away from the first motor (8), of the first rotating shaft penetrates through the first fixing plates (9) and is fixedly connected with any one of the clamping plate (10), an air cylinder (22) is fixedly connected on the first fixing plate (9) far away from the first motor (8), a first piston (23) is slidably connected in the air cylinder (22), and one end of the telescopic spring (23) is connected with the other end of the telescopic spring (23), an inflation mechanism is arranged at one end, close to the air cylinder (22), in the spraying box (1), the power input end of the inflation mechanism is connected with the upper lifting plate (6) and the lower lifting plate (7), the upper lifting plate (6) is connected with a spraying mechanism through a second fixing plate (17), the spraying mechanism is connected with the first rotating shaft through a belt, a tensioning mechanism matched with the belt is arranged on one side of the spraying box (1), a drying mechanism and a purifying mechanism are respectively arranged on two sides of the spraying box (1),

aerify mechanism includes two opening sleeve (25), second piston (13), conveyer pipe (24), through connecting rod fixed connection between two opening sleeve (25) and spraying case (1), second piston (13) sliding connection is in the both sides of two opening sleeve (25), two the one end that two opening sleeve (25) were kept away from in second piston (13) is connected with rising lifter plate (6), lifter plate (7) down respectively, be connected through conveyer pipe (24) between the gas outlet of two opening sleeve (25) and the air inlet of cylinder (22).

2. An alternating current electric arc spraying equipment according to claim 1, characterized in that the power mechanism comprises an output motor (2), a driving shaft (3) and a first driving wheel, the output motor (2) is fixedly connected with the spraying box (1), the first driving wheel is fixedly connected with the output end of the output motor (2), the lower end of the driving shaft (3) penetrates through the spraying box (1) and is fixedly connected with the forward and reverse rotation screw rod (5), the upper end of the driving shaft (3) is fixedly connected with a first driven wheel, and the first driving wheel is connected with the first driven wheel through a belt.

3. An alternating current arc spraying device according to claim 2, characterized in that the driving shaft (3) is rotatably connected with the spraying tank (1) through a bearing, a protective cover (4) is arranged outside the power mechanism, and the protective cover (4) is connected with the spraying tank (1).

4. An alternating current electric arc spraying device according to claim 3, characterized in that the inlet and outlet ports of the double-opening sleeve (25) are each provided with a one-way valve, and the outlet port of the cylinder (22) is provided with an air release valve.

5. An alternating current arc spraying device according to claim 1, wherein the spraying mechanism comprises a reciprocating lead screw (18), a moving block (21) and a spraying device, the reciprocating lead screw (18) is rotatably connected with a second fixing plate (17), one end of the second fixing plate (17) close to the first motor (8) is rotatably connected with a driven shaft (19), a second driven wheel is fixedly connected with the driven shaft (19), one end of the driven shaft (19) far away from the second driven wheel penetrates through the second fixing plate (17) and is fixedly connected with the reciprocating lead screw (18), a second driving wheel is fixedly connected with the first rotating shaft, the second driving wheel is connected with the second driven wheel through a belt, the moving block (21) is rotatably connected with the reciprocating lead screw (18) through a thread, fixing rods (20) are fixedly connected with the two second fixing plates (17), the moving block (21) is slidably connected with the fixing rods (20), and the spraying device is fixedly connected with the lower end of the moving block (21).

6. An alternating current arc spraying device according to claim 1, characterized in that the tensioning mechanism comprises a first sleeve (28), a telescopic rod (30), a tensioning spring (29) and a tensioning wheel (31), the first sleeve (28) is fixedly connected to the spraying tank (1), the tensioning spring (29) is fixedly connected in the first sleeve (28), the telescopic rod (30) is slidably connected in the first sleeve (28) and is fixedly connected with the tensioning spring (29), one end of the telescopic rod (30) far away from the tensioning spring (29) is rotatably connected with the tensioning wheel (31), and the tensioning wheel (31) is matched with a belt between a second driving wheel and a second driven wheel.

7. An alternating current electric arc spraying device according to claim 1, characterized in that the drying mechanism comprises a heater (11) and a first fan (12), the heater (11) and the first fan (12) are both fixedly connected with the spraying box (1), the first fan (12) is connected with the heater (11) through a first air pipe, and an air outlet of the first fan (12) penetrates through the spraying box (1).

8. An alternating current electric arc spraying equipment according to claim 1, characterized in that the purification mechanism comprises a purification box (14) and a second fan (15), the purification box (14) and the second fan (15) are both fixedly connected with the spraying box (1), the purification box (14) is connected with the second fan (15) through a second air pipe, and an air inlet of the second fan (15) penetrates through the spraying box (1).

9. An alternating current arc spraying equipment according to claim 1, characterized in that one side of the spraying box (1) is rotatably connected with a box door (101) through a hinge, a transparent plate (103) is arranged on the box door (101), and a sealing strip (102) is connected with the inner side surface of the box door (101).