阅读说明：本技术 双头喷枪 (Double-head spray gun ) 是由 齐红道 赖伟容 于 2020-05-29 设计创作，主要内容包括：本发明公开了一种双头喷枪,包括枪体、枪头、电机和送丝机构,枪头设于枪体的一端,枪头为两个,电机设于枪体上,送丝机构为四个,均与电机的输出轴连接,每两个送丝机构与一个枪头对应设置,枪体内设有送气管道,送气管道与枪头相对应。通过设有两个枪头,通过设有四个送丝机构,实现了四路锌丝喷金,因此,在同等喷金效率下,两个枪头所用的锌丝直径就可以减小,熔丝的热量也会相应减小,从而可以在低枪距条件下进行喷金,这样它的散射角度也大大减小,利用率比单头枪要高；同时因锌丝直径变小和枪距降低,因此,在工作时所需的压缩空气的也大大减少,所产生的粉尘也同步降低,从而实现节能、环保的效果。(The invention discloses a double-head spray gun which comprises a gun body, gun heads, motors and wire feeding mechanisms, wherein the gun heads are arranged at one end of the gun body, the number of the gun heads is two, the motors are arranged on the gun body, the number of the wire feeding mechanisms is four, the wire feeding mechanisms are connected with output shafts of the motors, every two wire feeding mechanisms are arranged corresponding to one gun head, a gas supply pipeline is arranged in the gun body, and the gas supply pipeline corresponds to the gun heads. By arranging two gun heads and four wire feeding mechanisms, four zinc wire gold spraying is realized, so that the diameters of the zinc wires used by the two gun heads can be reduced under the same gold spraying efficiency, the heat of a fuse wire can be correspondingly reduced, and the gold spraying can be carried out under the condition of low gun distance, so that the scattering angle of the gold spraying gun is greatly reduced, and the utilization rate of the gold spraying gun is higher than that of a single gun; meanwhile, as the diameter of the zinc wire is reduced and the gun distance is reduced, the compressed air required during working is greatly reduced, and the generated dust is synchronously reduced, so that the effects of energy conservation and environmental protection are realized.)

1. The double-end spray gun is characterized by comprising a gun body (1), gun heads (2), motors (3) and wire feeding mechanisms (4), wherein the gun heads (2) are arranged at one ends of the gun body (1), the gun heads (2) are two, the motors (3) are arranged on the gun body (1), the wire feeding mechanisms (4) are four and are connected with output shafts of the motors (3) respectively, every two wire feeding mechanisms (4) are arranged corresponding to one gun head (2), a gas feeding pipeline (5) is arranged in the gun body (1), and the gas feeding pipeline (5) is corresponding to the gun heads (2).

2. Double-ended spray gun according to claim 1, characterized in that said motor (3) is a servo motor.

3. The double-ended spray gun according to claim 2, further comprising a transmission device (6), wherein the transmission device (6) is connected with an output shaft of the motor (3), the motor (3) is connected with the wire feeding mechanism (4) through the transmission device (6), the transmission device (6) comprises a driving gear (61) and a wire feeding wheel (62), the driving gear (61) is sleeved on the output shaft of the motor (3), the wire feeding wheel (62) is meshed with the driving gear (61), and the wire feeding wheel (62) corresponds to the wire feeding mechanism (4).

4. The double-ended spray gun according to claim 3, wherein the wire feeding mechanism (4) comprises a wire pressing wheel (41), a wire feeding main shaft (42), a wire penetrating pipe (43) and a wire feeding pipe (44), a gun nozzle (45) is arranged at one end of the wire feeding pipe (44), the wire pressing wheel (41) is matched with the wire feeding wheel (62), the wire feeding main shaft (42), the wire penetrating pipe (43) and the wire feeding pipe (44) are sequentially arranged, the wire feeding main shaft (42) and the wire penetrating pipe (43) are respectively arranged at two sides of the wire pressing wheel (41), and the wire feeding pipe (44) is obliquely arranged.

5. The double-end spray gun according to claim 4 is characterized in that the wire penetrating pipe (43) is arranged in the wire feeding module (7), the wire feeding module (7) is arranged on the gun body (1), the wire feeding module (7) comprises two matched copper blocks (71), an arc-shaped groove (711) and an inclined groove (712) which are communicated with each other are arranged on one side of each copper block (71), one side of each copper block (71) provided with the arc-shaped groove (711) is attached to one side of each copper block, the other end of the wire feeding pipe (44) is fixed in the inclined groove (712), and the arc-shaped grooves (711) correspond to the wire feeding pipe (44).

6. The double-ended spray gun according to claim 5, further comprising a porcelain cap (8), wherein the porcelain cap (8) covers the outside of the gun nozzle (45), the porcelain cap (8) is provided with a cavity (81), the gun head (2) is located in the cavity (81), and the air outlet end of the air inlet pipeline (5) is communicated with the cavity (81) of the porcelain cap (8).

7. The double-ended spray gun according to claim 6, wherein the air outlet end of the air supply pipeline (5) is provided with air distribution holes (51) and a main air hole (52), the air distribution holes (51) are positioned at the periphery of the main air hole (52), one gun head is provided with four air distribution holes (51) and one main air hole (52), and the air distribution holes (51) and the main air hole (52) are communicated with the cavity of the porcelain cap (8).

8. Double-ended lance according to claim 7 wherein the lance tip (2) has a spray diameter of 25mm and a lance spacing of 80 mm.

Technical Field

The invention belongs to the field of capacitor processing equipment, and particularly relates to a double-head spray gun.

Background

The existing capacitor metal spraying gun head adopts one gun head, namely single-point spraying, the single gun is used for spraying metal by using two zinc wires, the diameter of the needed zinc wire is larger, the heat of a fuse wire is higher, the metal spraying distance is larger, the scattering angle is increased, and the utilization rate of materials is lower; meanwhile, the zinc wire has a large diameter, so that heat is large at a fuse point, more compressed air is needed, more dust is generated, and environmental pollution is caused.

The copper pipe used by the existing single-head gun is mostly formed by aligning two straight pipes or bending a single straight pipe, and the butt joint angle of the copper pipe can generate dead angles or deform due to bending, so that the smooth wire feeding is greatly hindered, and the wire is easily blocked. Meanwhile, the existing spray gun has large overall weight and large influence on the operation stability.

Disclosure of Invention

The object of the present invention is to provide a double-ended spray gun capable of solving at least one of the above problems.

According to one aspect of the invention, the double-head spray gun comprises a gun body, two gun heads, four motors and four wire feeding mechanisms, wherein the gun heads are arranged at one end of the gun body, the number of the gun heads is two, the motors are arranged on the gun body, the four wire feeding mechanisms are respectively connected with an output shaft of the motors, every two wire feeding mechanisms are arranged corresponding to one gun head, an air supply pipeline is arranged in the gun body, and the air supply pipeline corresponds to the gun heads.

The invention has the beneficial effects that: by arranging two gun heads and four wire feeding mechanisms, four zinc wire gold spraying is realized, so that the diameters of the zinc wires used by the two gun heads can be reduced under the same gold spraying efficiency, the heat of a fuse wire can be correspondingly reduced, and the gold spraying can be carried out under the condition of low gun distance, so that the scattering angle of the gold spraying gun is greatly reduced, and the utilization rate of the gold spraying gun is higher than that of a single gun; meanwhile, as the diameter of the zinc wire is reduced and the gun distance is reduced, the compressed air required during working is greatly reduced, and the generated dust is synchronously reduced, so that the effects of energy conservation and environmental protection are realized.

In some embodiments, the motor is a servo motor. Therefore, the weight of the whole gun body is reduced, and the wire feeding of the wire feeding mechanism is more stable, and the gold spraying current is more stable.

In some embodiments, the double-ended spray gun further comprises a transmission device, the transmission device is connected with an output shaft of the motor, the motor is connected with the wire feeding mechanism through the transmission device, the transmission device comprises a driving gear and a wire feeding wheel, the driving gear is sleeved on the output shaft of the motor, the wire feeding wheel is meshed with the driving gear, and the wire feeding wheel corresponds to the wire feeding mechanism. Therefore, the transmission device is arranged, so that the synchronous action of the wire feeding mechanisms on two sides can be conveniently driven by one motor, the use cost of the motor is saved, the electric energy is saved, and the working synchronism of the two gun heads is realized.

In some embodiments, the wire feeding mechanism comprises a wire pressing wheel, a wire feeding main shaft, a wire penetrating pipe and a wire feeding pipe, a gun nozzle is arranged at one end of the wire feeding pipe, the wire pressing wheel is matched with the wire feeding wheel, the wire feeding main shaft, the wire penetrating pipe and the wire feeding pipe are arranged in sequence, the wire feeding main shaft and the wire penetrating pipe are respectively positioned at two sides of the wire pressing wheel, and the wire feeding pipe is obliquely arranged. Therefore, the feeding of the zinc wires is realized through the matching of the wire pressing wheel and the wire feeding wheel, and the zinc wires can be conveniently and stably fed to the gun nozzle through the wire feeding main shaft, the wire threading pipe and the wire feeding pipe.

In some embodiments, the wire feeding pipe is arranged in the wire feeding module, the wire feeding module is arranged on the gun body, the wire feeding module comprises two copper blocks matched with each other, an arc-shaped groove and an inclined groove which are communicated with each other are formed in one side of each copper block, which is provided with the arc-shaped groove, is attached to one side of each copper block, the other end of the wire feeding pipe is fixed in the inclined groove, and the arc-shaped grooves correspond to the wire feeding pipe. Therefore, the inclined groove is arranged, so that the wire feeding pipe can be conveniently installed and fixed; the arc-shaped groove is arranged, so that the pipeline of the wire feeding module is in streamline design, the transition is smooth, the seam is inosculated, and the friction force of the zinc wire is reduced to be very low, so that the wire blocking and the ignition are not easy to happen, and the maintenance cost is reduced.

In some embodiments, the double-ended spray gun further comprises a porcelain cap, the porcelain cap covers the outside of the gun nozzle, the porcelain cap is provided with a cavity, the gun head is located in the cavity, and the air outlet end of the air inlet pipeline is communicated with the cavity of the porcelain cap. Therefore, the ceramic cap is arranged, and the cavity is formed, so that the compressed air and the zinc wire at the gun nozzle are conveniently acted.

In some embodiments, the air outlet end of the air supply pipeline is provided with air distribution holes and a main air hole, the air distribution holes are positioned at the periphery of the main air hole, one gun head is provided with four air distribution holes and one main air hole, and the air distribution holes and the main air hole are communicated with the cavity of the porcelain cap. Therefore, the molten metal wire can be fully atomized into particles by conveniently and rapidly compressing air, and the particles are sprayed to the end face of the capacitor element to form a spraying layer.

In some embodiments, the spray diameter of the tip is 25mm and the distance between the metal spray guns is 80 mm. Therefore, the aim of reducing the spraying diameter and the distance between metal spraying guns of the gun head is fulfilled.

Drawings

FIG. 1 is a schematic structural view of the double-ended spray gun of the present invention;

FIG. 2 is a schematic structural view of a copper block in the double-ended spray gun of the present invention;

FIG. 3 is a schematic view of the dual-head gun of the present invention from one perspective of the motor coupled to the wire feeder;

FIG. 4 is a schematic view of another perspective of the motor coupled to the wire feeder in the dual-head spray gun of the present invention;

FIG. 5 is a schematic cross-sectional view of the double-ended spray gun of the present invention.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Refer to fig. 1 to 5. Double-end spray gun, including the rifle body 1, rifle head 2, motor 3 and thread feeding mechanism 4, rifle head 2 locates the one end of the rifle body 1, and rifle head 2 is two, and motor 3 locates on the rifle body 1, and thread feeding mechanism 4 is four, all with the output shaft of motor 3, and per two thread feeding mechanism 4 correspond the setting with a rifle head 2, are equipped with the gas supply pipeline 5 in the rifle body 1, and gas supply pipeline 5 is corresponding with rifle head 2, and the high-speed compressed gas that gas supply pipeline 5 carried is in rifle head 2 department promptly. Wherein, motor 3 is servo motor, has replaced the ordinary motor that adopts among the prior art, and the double-end spray gun has used servo motor to make the drive, when lightening the whole weight of spray gun for send a wire more stable to wire drive mechanism 4, and the metal spraying electric current is more stable.

When the double-end spray gun is used, the wire feeding mechanism 4 is driven to operate by the motor 3, the metal wire is conveyed to the gun head 2 through the wire feeding mechanism 4, a short-circuit electric arc is established by the contact of two metal wires with charges (opposite polarities), and the metal wire is melted by heat energy generated by the electric arc; then, high-speed compressed air is externally connected through the air supply pipeline 5, so that the high-speed compressed air is delivered to the molten metal wire, the molten metal wire is atomized into particles, and the particles are sprayed to the end face of the capacitor element to form a spraying layer.

The double-end spray gun further comprises a transmission device 6, the transmission device 6 is connected with an output shaft of the motor 3, the motor 3 is connected with the wire feeding mechanism 4 through the transmission device 6, the transmission device 6 comprises a driving gear 61 and a wire feeding wheel 62, the driving gear 61 is sleeved on the output shaft of the motor 3, the wire feeding wheel 62 is meshed with the driving gear 61, and the wire feeding wheel 62 corresponds to the wire feeding mechanism 4.

The wire feeding mechanism 4 comprises a wire pressing wheel 41, a wire feeding main shaft 42, a wire feeding pipe 43 and a wire feeding pipe 44, a gun nozzle 45 is arranged at one end of the wire feeding pipe 44, the wire pressing wheel 41 is matched with the wire feeding wheel 62, the wire feeding main shaft 42, the wire feeding pipe 43 and the wire feeding pipe 44 are sequentially arranged, the wire feeding main shaft 42 and the wire feeding pipe 43 are respectively positioned at two sides of the wire pressing wheel 41, and the wire feeding pipe 44 is obliquely arranged. Wherein, the wire feeding main shaft 42, the wire feeding pipe 43 and the wire feeding pipe 44 are all provided with through holes for transmitting metal wires.

Therefore, after the motor 3 is started, the output shaft of the motor 3 drives the driving gear 61 to rotate, and the driving gear 61 drives the wire feeding wheel 62 meshed with the driving gear to rotate; because the wire pressing wheel 41 is matched with the wire feeding wheel 62, the wire feeding wheel 62 drives the wire pressing wheel 41 to synchronously rotate, the metal wires are conveyed through the combined action of the wire pressing wheel 41 and the wire feeding wheel 62, and then are conveyed to the gun nozzle 45 through the wire feeding main shaft 42, the wire penetrating pipe 43 and the wire feeding pipe 44, so that the two metal wires with opposite polarities are contacted at the gun nozzle 45 to form a short-circuit arc, and further the melting of the metal wires is realized.

The wire threading pipe 43 is arranged in the wire feeding module 7, the wire feeding module 7 is arranged on the gun body 1, the wire feeding module 7 comprises two copper blocks 71 which are matched with each other, an arc groove 711 and an inclined groove 712 which are communicated with each other are arranged on one side of the copper block 71, one side of the arc groove 711 of the two copper blocks 71 is attached to one side of the two copper blocks, the other end of the wire feeding pipe 44 is fixed in the inclined groove 712, the arc groove 711 corresponds to the wire feeding pipe 44, and metal wires conveyed by the wire feeding pipe 44 pass through the arc groove 711 and then reach the wire feeding pipe 44. The wire feeding module 7 is composed of two copper blocks 71 formed by CNC fine engraving, the pipeline of the wire feeding module is in streamline design, the transition is smooth, the seams are inosculated, and the friction force of zinc wires during passing is reduced to the minimum; therefore, the phenomena of wire blockage and ignition are not easy to occur, and the maintenance cost is reduced.

The double-end spray gun further comprises a porcelain cap 8, the porcelain cap 8 covers the outer side of the gun nozzle 45, a cavity 81 is formed in the porcelain cap 8, the gun head 2 is located in the cavity 81, and the air outlet end of the air inlet pipeline 5 is communicated with the cavity 81 of the porcelain cap 8. In the actual use process, in order to facilitate the installation of the porcelain cap 8, an end cover is sleeved on the outer side of the porcelain cap 8, the end cover is matched and fixed with the outer side of the gun head 2 through threads, and the porcelain cap 8 is tightly pressed and fixed on the outer side of the gun head 2 through the end cover; the end face of the end cover is provided with a through hole which is communicated with the cavity 81, so that atomized metal particles are sprayed out through the through hole, and the use requirement is met.

The air outlet end of the air supply pipeline 5 is provided with an air distribution hole 51 and a main air hole 52, the air distribution hole 51 is positioned at the periphery of the main air hole 52, one gun head is provided with four air distribution holes 51 and one main air hole 52, and the air distribution holes 51 and the main air hole 52 are both communicated with the cavity of the porcelain cap 8. The high-speed compressed gas flowing out from the gas distribution holes 51 and the main gas holes 52 is collected in the cavity 81, so that the molten metal wire can be fully atomized to form tiny particles, and a spraying layer can be conveniently formed on the end face of a product.

In the actual use process of the double-head spray gun, the spraying diameter of the gun head 2 is 25mm, and the spraying diameter of the existing single-head common spray gun is 60 mm; the distance between metal spraying guns of the double-head spray gun is 80mm, and the distance between metal spraying guns of the conventional single-head common spray gun is 120-220 mm; the utilization rate of the double-head spray gun of the invention to metal wire materials can reach 60-65%, and the utilization rate of the existing single-head common spray gun to materials is 40-45%. Therefore, under the same metal spraying efficiency, the diameter of the zinc wire or other metal wires used by the double-head spray gun can be reduced, the heat of the fuse wire can be correspondingly reduced, so that the double-head spray gun can spray metal under the condition of low gun distance, the scattering angle of the double-head spray gun is greatly reduced, and the utilization rate of the double-head spray gun is naturally higher than that of a single-head gun; meanwhile, as the diameter of the zinc wire is reduced and the gun distance is reduced, the required compressed air is greatly reduced, and the generated dust is synchronously reduced, thereby realizing the effects of energy conservation and environmental protection.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various changes and modifications can be made without departing from the inventive concept of the present invention, and these changes and modifications are all within the scope of the present invention.