Reinforced spray gun

Abstract

The utility model discloses a reinforced spray gun which comprises a gun body, a motor, a transmission device, two wire feeding devices and a conductive column, a gun head is arranged at the front end of the gun body, the motor is arranged at the tail end of the gun body, the transmission device and the wire feeding devices are both located in the gun body, the transmission device is connected with an output shaft of the motor, and the two wire feeding devices both correspond to the gun head. The conductive columns are symmetrically arranged on the gun body and are respectively and electrically connected with the two wire feeding devices, a metal elastic sheet and a connector lug are arranged below the conductive columns, the connector lug is electrically connected with the connector lug through the metal elastic sheet, and one end of the connector lug extends out of the tail end of the gun body. The external welding wire is directly connected and conducted with the connector lug and does not need to be wound to the front end of the gun body, so that wiring is facilitated, and the use safety is improved; meanwhile, through the metal elastic pieces, conduction of the conductive columns and the connector lugs can be achieved, it is guaranteed that the corresponding power receiving wheels are tightly connected with the electrodes all the time in the rotating process, and it is guaranteed that the sparking phenomenon cannot occur in the metal spraying process.

Description

Technical Field

[0001] The utility model belongs to a spray gun for capacitor processing, especially an enhanced spray gun. Background Art

[0002] In the gold spraying process of capacitors, zinc wire is melted and sprayed onto the surface of the capacitor to achieve the gold spraying treatment of the capacitor. During use, the zinc wire is electrified through an external wire and a conductive column. When two zinc wires contact and cross, current is generated through voltage and heat is generated to form an arc, melting the zinc wire at high temperature. For example, the arc spray gun with the application number 202120907928.3 discloses an arc spray gun. By providing a conductive column and a conductive block, when the gun body cover plate is installed, the conductive column is inconvenient for wiring, and the welding wire needs to bypass the gun body from the motor at the tail end and then be connected to the conductive column from the front. Therefore, this arc spray gun is inconvenient for wiring, and the entire span of the conductive column is large, consuming a large amount of materials, increasing the cost of the entire spray gun to a certain extent. Content of the Utility Model

[0003] The purpose of the utility model is to provide an enhanced spray gun that can solve at least one of the above problems.

[0004] According to one aspect of the utility model, an enhanced spray gun is provided, including a gun body, a motor, a transmission device, a wire feeding device, and a conductive column. The front end of the gun body is provided with a gun head, the motor is arranged at the tail end of the gun body, the transmission device and the wire feeding device are both located inside the gun body, the transmission device is connected to the output shaft of the motor, there are two wire feeding devices, and both wire feeding devices correspond to the gun head. The conductive columns are symmetrically arranged on the gun body and are respectively electrically connected to the two wire feeding devices. A metal elastic sheet and a wiring head are arranged below the conductive column, the wiring head is electrically connected to the conductive column through the metal elastic sheet, and one end of the wiring head extends out from the tail end of the gun body.

[0005] The beneficial effect of the utility model is that by providing a wiring head and the wiring head extending out from the tail end of the gun body, therefore, the external welding wire is directly connected and conducted to the wiring head without having to go around to the front end of the gun body, which is convenient for wiring and improves the safety of use; at the same time, through the metal elastic sheet, the conduction between the conductive column and the wiring head can be realized, ensuring that the corresponding power receiving wheel is always tightly connected to the electrode during rotation, and ensuring that there is no sparking phenomenon during the gold spraying process.

[0006] In some embodiments, an installation groove is provided inside the gun body, the wiring head is matched with the installation groove, the metal elastic sheet is located above the installation groove and is in contact with the wiring head. Thus, through the installation groove, the fixed installation of the wiring head on the gun body can be facilitated.

[0007] In some embodiments, the metal shrapnel includes a horizontal side and a U-shaped portion. The horizontal side abuts against the terminal, one side of the U-shaped portion is connected to the horizontal side, and the other side abuts against the conductive column. Thus, by providing the U-shaped portion, the conductive column is always kept in contact with the wire feeding device under the action of the elastic force of the metal shrapnel, ensuring that the zinc wire can be smoothly energized.

[0008] In some embodiments, the wire feeding device includes a first wire feeding gear, a second wire feeding gear, a wire pressing wheel, and a wire feeding wheel. The first wire feeding gear and the second wire feeding gear are meshed with each other. The wire pressing wheel rotates coaxially with the first wire feeding gear, and the wire feeding wheel rotates coaxially with the second wire feeding gear. The wire pressing wheel and the wire feeding wheel are arranged corresponding to each other. The top end of the conductive column is electrically connected to the wire feeding wheel. Thus, through the cooperation of the various structures of the wire feeding device, the conveying of the zinc wire is realized.

[0009] In some embodiments, an air inlet pipe is provided at the tail end of the gun body. The air inlet pipe extends beyond the outer end face of the motor and corresponds to the gun head after passing through the gun body. Thus, the air inlet pipe is lengthened, facilitating the connection of the air inlet pipe to the external compressed air without interfering with the operation of other structures of the gun body.

[0010] In some embodiments, the wire feeding device further includes a wire inlet pipe and a wire guiding pipe. The wire inlet pipe and the wire guiding pipe are respectively located at both ends of the wire pressing wheel. The wire guiding pipe extends out of the gun body and extends to the gun head. The number of teeth of both the first wire feeding gear and the second wire feeding gear is twenty. Thus, by increasing the number of teeth of the first wire feeding gear and the second wire feeding gear, the biting force between the two gears can be increased, thereby ensuring the normal conveying of the zinc wire and avoiding slipping.

[0011] In some embodiments, the transmission device includes a worm gear and a worm. The worm gear is sleeved on the output shaft of the motor, the worm is meshed with the worm gear, and both the wire feeding wheel and the second wire feeding gear are sleeved on the worm. Thus, through the cooperation of the worm gear and the worm, the motor can conveniently drive the wire feeding wheel to rotate to realize wire feeding. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 is a schematic structural diagram of the enhanced spray gun of the present utility model.

[0013] Figure 2 is a schematic diagram of the internal structure of the enhanced spray gun of the present utility model.

[0014] Figure 3 is a schematic structural diagram of a part of the enhanced spray gun of the present utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0015] The present utility model will be further described in detail below with reference to the drawings.

[0016] Refer to Figures 1 to 3Reinforced spray gun, comprising a gun body 1, a motor 2, a transmission device 3, a wire feeding device 4 and a conductive column 5. The front end of the gun body 1 is provided with a gun head 6, the motor 2 is arranged at the tail end of the gun body 1, the transmission device 3 and the wire feeding device 4 are both located inside the gun body 1, the transmission device 3 is connected to the output shaft of the motor 2, there are two wire feeding devices 4, and the two wire feeding devices 4 both correspond to the gun head 6. The conductive columns 5 are symmetrically arranged on the gun body 1 and are electrically connected to the two wire feeding devices 4 respectively. Below the conductive column 5, there are a metal elastic sheet 7 and a wiring terminal 8, and the wiring terminal 8 is electrically connected to the wiring terminal 8 through the metal elastic sheet 7. One end of the wiring terminal 8 extends out from the tail end of the gun body 1. Among them, the wiring terminal 8 is made of conductive metal material, which is convenient for conducting electricity.

[0017] When the reinforced spray gun of the present utility model is in use, two zinc wires are conveyed to the gun head 6 through the wire feeding device 4. When the two zinc wires cross at the gun head 6, the voltage carried by the two zinc wires generates an electric current and heats up to form an arc. The metal melted by the arc is blown towards the capacitor to realize the gold spraying of the capacitor. By providing the wiring terminal 8, it is convenient to connect with the external welding wire, without having to wind the welding wire around to the front side of the gun body to connect with the conductive electrode, which facilitates the connection of the welding wire. When the wiring terminal 8 is connected to the external welding wire, that is, the wire, the conductivity of the metal elastic sheet 7 and the conductive column 5 can be realized. The conductive column 5 conducts electricity to the zinc wire conveyed by the wire feeding device 4, realizing the energization of the zinc wire.

[0018] An installation groove is opened in the gun body 1, the wiring terminal 8 is matched with the installation groove, the metal elastic sheet 7 is located above the installation groove and is in contact with the wiring terminal 8. The width of the installation groove is the same as the thickness of the wiring terminal 8, which is convenient for the wiring terminal 8 to be fixed in the installation groove; the top end of the wiring terminal 8 is flush with the top end of the installation groove or higher than the top end of the installation groove, which is convenient for the wiring terminal 8 to contact with the metal elastic sheet 7 to realize electrical connection.

[0019] The metal elastic sheet 7 includes a horizontal edge 71 and a U-shaped part 72. The horizontal edge 71 abuts against the wiring terminal 8, one side of the U-shaped part 72 is connected to the horizontal edge 71, and the other side abuts against the conductive column 5. The metal elastic sheet 7 is an integrally formed structure, and the horizontal edge 71 is pressed above the wiring terminal 8 and the two are in contact.

[0020] During the actual installation process, in order to facilitate the conductive column 5 and the metal elastic sheet 7 to always remain in contact, an installation hole is opened on the other side wall of the U-shaped part 72. The bottom end of the conductive column 5 is formed with an insertion post, and the insertion post is inserted into the installation hole. The aperture of the installation hole is the same as the outer diameter of the insertion post; the corresponding end face of the part of the conductive column located above the U-shaped part 72 abuts against the upper end face of the U-shaped part 72, ensuring that the conductive column 5 and the metal elastic sheet 7 always remain in contact, thereby realizing the conductivity of the conductive column 5.

[0021] The wire feeding device 4 includes a first wire feeding gear 41, a second wire feeding gear 42, a wire pressing wheel 43 and a wire feeding wheel 44. The first wire feeding gear 41 and the second wire feeding gear 42 are meshed with each other. The wire pressing wheel 43 rotates coaxially with the first wire feeding gear 41, and the wire feeding wheel 44 rotates coaxially with the second wire feeding gear 42. The wire pressing wheel 43 and the wire feeding wheel 44 are arranged corresponding to each other. The top end of the conductive column 5 is electrically connected to the wire feeding wheel 44. The conductive column 5 is in direct contact with the wire feeding wheel 44. The wire feeding wheel 44 is a conductive metal wheel, which is convenient for conducting electricity, so that the zinc wire on the wire feeding wheel 44 can conduct electricity.

[0022] When the zinc wire is being transported, the wire pressing wheel 43 presses tightly on the zinc wire, and the zinc wire is transported by the wire feeding wheel 44. When two zinc wires are transported to the gun head, they are melted and then spraying of gold is achieved.

[0023] An air inlet pipe 9 is provided at the tail end of the gun body 1. The air inlet pipe 9 extends beyond the outer end face of the motor 2. The air inlet pipe 9 penetrates through the gun body 1 and corresponds to the gun head 6, that is, the high-pressure gas introduced by the air inlet pipe 9 can enter the gun head 6 and be ejected, so that the melted metal particles are sprayed onto the capacitor to achieve the gold spraying treatment.

[0024] The wire feeding device 4 further includes a wire inlet pipe 45 and a wire guiding pipe 46. The wire inlet pipe 45 and the wire guiding pipe 46 are respectively located at both ends of the wire pressing wheel 43. The wire guiding pipe 46 extends out of the gun body 1 and extends to the gun head 6. The number of teeth of both the first wire feeding gear 41 and the second wire feeding gear 42 is twenty. Through the wire inlet pipe 45, it is convenient for the zinc wire from the outside to enter the gun body 1 through the wire inlet pipe 45, and be transported along the wire feeding wheel to the wire guiding pipe 46, and extend out to the gun head along the wire guiding pipe 46 to achieve the contact of two zinc wires.

[0025] The transmission device 3 includes a worm gear 31 and a worm 32. The worm gear 31 is sleeved on the output shaft of the motor 2. The worm 32 is meshed with the worm gear 31. Both the wire feeding wheel 44 and the second wire feeding gear 42 are sleeved on the worm 32. Among them, through the cooperation of the worm gear and the worm, it is convenient for the motor 2 to drive two wire feeding devices 4 to achieve wire feeding and meet the corresponding usage requirements.

[0026] The above are only the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the creative concept of the present invention, several deformations and improvements can still be made, and these all belong to the protection scope of the present invention.

Claims

1. Reinforced spray gun, characterized in that, It includes a gun body (1), a motor (2), a transmission device (3), a wire feeding device (4) and a conductive column (5). A gun head (6) is provided at the front end of the gun body (1). The motor (2) is arranged at the tail end of the gun body (1). The transmission device (3) and the wire feeding device (4) are both located inside the gun body (1). The transmission device (3) is connected to the output shaft of the motor (2). There are two wire feeding devices (4), and the two wire feeding devices (4) correspond to the gun head (6) respectively. The conductive columns (5) are symmetrically arranged on the gun body (1) and are electrically connected to the two wire feeding devices (4) respectively. A metal shrapnel (7) and a wiring head (8) are provided below the conductive column (5). The wiring head (8) is electrically connected to the wiring head (8) through the metal shrapnel (7). One end of the wiring head (8) extends out from the tail end of the gun body (1).

2. The enhanced spray gun according to claim 1, wherein An installation groove is provided inside the gun body (1). The wiring head (8) is matched with the installation groove. The metal shrapnel (7) is located above the installation groove and is in contact with the wiring head (8).

3. The enhanced spray gun according to claim 2, wherein The metal shrapnel (7) includes a horizontal side (71) and a U-shaped part (72). The horizontal side (71) abuts against the wiring head (8). One side of the U-shaped part (72) is connected to the horizontal side (71), and the other side abuts against the conductive column (5).

4. The enhanced spray gun according to claim 3, characterized in that, The wire feeding device (4) includes a first wire feeding gear (41), a second wire feeding gear (42), a wire pressing wheel (43) and a wire feeding wheel (44). The first wire feeding gear (41) and the second wire feeding gear (42) are meshed with each other. The wire pressing wheel (43) rotates coaxially with the first wire feeding gear (41). The wire feeding wheel (44) rotates coaxially with the second wire feeding gear (42). The wire pressing wheel (43) and the wire feeding wheel (44) are arranged correspondingly. The top end of the conductive column (5) is electrically connected to the wire feeding wheel (44).

5. The enhanced spray gun according to any one of claims 1 to 4, characterized in that, An air inlet pipe (9) is provided at the tail end of the gun body (1). The air inlet pipe (9) extends beyond the outer end face of the motor (2). The air inlet pipe (9) penetrates through the gun body (1) and corresponds to the gun head (6).

6. The enhanced spray gun according to claim 4, wherein The wire feeding device (4) further includes a wire inlet pipe (45) and a wire guiding pipe (46). The wire inlet pipe (45) and the wire guiding pipe (46) are respectively located at both ends of the wire pressing wheel (43). The wire guiding pipe (46) extends out of the gun body (1) and extends to the gun head (6). The number of teeth of both the first wire feeding gear (41) and the second wire feeding gear (42) is twenty.

7. The enhanced spray gun according to claim 6, characterized in that, The transmission device (3) includes a worm gear (31) and a worm (32). The worm gear (31) is sleeved on the output shaft of the motor (2). The worm (32) is meshed with the worm gear (31). Both the wire feeding wheel (44) and the second wire feeding gear (42) are sleeved on the worm (32).

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