Powder spray gun module

Abstract

The utility model discloses a powder spray gun module in the field of electrostatic high-voltage modules, which comprises a base, an accommodating cavity and a needle groove which are communicated with each other are arranged in the base, a high-voltage transformer, a capacitor module and a high-voltage resistor are mounted in the accommodating cavity and are electrically connected in sequence, and a lead is connected to the rear end of the base. One end of the wire is electrically connected with the high-voltage transformer and used for supplying power to the high-voltage transformer, an electrode needle is installed in the needle groove, one end of the electrode needle is electrically connected with the high-voltage resistor, the other end of the electrode needle extends towards the front of the base, a fixing ring is connected to the outer side of the electrode needle in a sleeving mode, and the fixing ring is fixed in the needle groove and used for fixing the position of the electrode needle. Power is directly supplied in the mode that the wire is directly connected with the high-voltage transformer, the stability of current and voltage during power supply is improved, the wire is prevented from falling off during power supply, the electrode needle is fixed through the fixing ring, the stability of the electrode needle in the base is enhanced, and the electrode needle is prevented from loosening when extending forwards.

Description

TECHNICAL FIELD

[0001] The utility model relates to electrostatic high -voltage module technical field, concretely is powder spray gun module. BACKGROUND

[0002] Powder spray gun module is the key component in powder spraying equipment, and it plays a vital role for uniform spraying and efficient use of powder coating. The working principle of powder spray gun module is mainly based on electrostatic adsorption and high pressure atomization. When the powder coating passes through the nozzle, the high voltage electric field generated by the module makes the powder coating charged, and forms a charged powder mist under the action of the electrostatic generator. These charged powder particles are adsorbed to the surface of the coated object under the action of electric field force, forming a uniform coating.

[0003] At present, when the spray gun module is powered, the power connection port for connecting the power supply line is basically arranged on one side of the module. With long time work, the power connection port on the line is easy to loosen, and even fall off to affect the power supply. In addition, the electrode needle providing high voltage static electricity is limited in length, and excessive extension can easily cause the electrode needle to loosen in the module. SUMMARY

[0004] In order to overcome the deficiencies of the prior art, the utility model provides powder spray gun module, which can effectively solve the technical problems of poor contact and electrode needle loosening when extending forward during power supply in the spray gun module.

[0005] The utility model solves the technical problems by adopting the following technical scheme:

[0006] The powder spray gun module comprises a base, a containing cavity and a needle slot which are in communication with each other are arranged in the base, a high voltage transformer, a capacitor module and a high voltage resistor are installed in the containing cavity, the high voltage transformer, the capacitor module and the high voltage resistor are electrically connected in sequence, a wire is connected to the rear end of the base, one end of the wire is electrically connected with the high voltage transformer, which is used for supplying power to the high voltage transformer, an electrode needle is installed in the needle slot, one end of the electrode needle is electrically connected with the high voltage resistor, the other end of the electrode needle extends to the front of the base, a fixing ring is sleeved outside the electrode needle, the fixing ring is fixed in the needle slot and is used for fixing the position of the electrode needle.

[0007] Further, the containing cavity is sequentially provided with a first fixing station, a second fixing station and a third fixing station for fixing the high voltage transformer, the capacitor module and the high voltage resistor respectively.

[0008] Further, the containing cavity and the needle slot are filled with transparent epoxy resin, and the transparent epoxy resin is used for packaging and fixing the positions of the high voltage transformer, the capacitor module, the high voltage resistor and the electrode needle.

[0009] Further, the front end and the rear end of the base are respectively provided with a front clamping part and a rear clamping part for clamping fixation, and the electrode needle passes through the inside of the front clamping part when extending forward.

[0010] Further, the base is provided with a plurality of heat dissipation holes for heat dissipation, and the heat dissipation holes are distributed on both sides of the base.

[0011] Further, the rear end of the base is provided with a wire hole, and one end of the wire passes through the wire hole and is electrically connected with the high-voltage transformer.

[0012] Further, the top of the base is detachably connected with a cover body, the bottom of the cover body is provided with an insertion rod fixedly inserted into the base, and the base is provided with an insertion slot matched with the insertion rod at a corresponding position.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] In the powder spray gun module, the wire is directly connected with the high-voltage transformer, and the high-voltage transformer is directly powered, which helps to improve the stability of current and voltage during power supply, avoids the wire from falling off during power supply, and meanwhile, the electrode needle is fixed by the fixing ring, so that the stability of the electrode needle in the base is strengthened, and the loosening of the electrode needle during forward extension is avoided. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a top view schematic diagram of the overall structure of the embodiment of the utility model;

[0016] Figure 2 It is a top view schematic diagram of the overall structure of the embodiment of the utility model;

[0017] Figure 3 It is a connection schematic diagram of the internal structure of the base of the embodiment of the utility model;

[0018] Figure 4 It is the embodiment of the utility model Figure 3 It is an enlarged schematic diagram of the structure of part A of the embodiment of the utility model;

[0019] Figure 5 It is a structure schematic diagram of the base accommodating cavity of the embodiment of the utility model;

[0020] Figure 6 It is a structure schematic diagram of the bottom of the cover body of the embodiment of the utility model;

[0021] Mark in the figure:

[0022] 1-Base, 2-Receiving cavity, 3-Pin groove, 4-High voltage transformer, 5-Capacitor module, 6-High voltage resistor, 7-Wire, 8-Electrode needle, 9-Fixing ring, 10-First fixed station, 11-Second fixed station, 12-Third fixed station, 13-Slot, 14-Front snap-fit ​​part, 15-Rear snap-fit ​​part, 16-Heat dissipation hole, 17-Wire hole, 18-Cover, 19-Insertion rod; 501-Capacitor, 502-Diode. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] like Figures 1-6 As shown, this utility model embodiment provides a powder spray gun module for use inside a spray gun. By optimizing the internal structure, the main purpose is to increase the high voltage during the powder spraying process, so as to generate electrostatic adsorption force during the spraying process, and realize that the powder coating is better sprayed onto the surface of the object.

[0025] The powder spray gun module mainly includes a base 1, which has a mutually connected receiving cavity 2 and a needle groove 3. The receiving cavity 2 contains a conductive high-voltage transformer 4, a capacitor module 5 and a high-voltage resistor 6, while the needle groove 3 contains an electrode needle 8.

[0026] During connection, the high-voltage transformer 4, capacitor module 5, and high-voltage resistor 6 are electrically connected in sequence. After conduction, a stable high-voltage current is formed by the high-voltage transformer 4, capacitor module 5, and high-voltage resistor 6, and then this high-voltage current is delivered to one end of the electrode needle 8. To prevent detachment during connection, a wire 7 is connected to the rear end of the base 1. One end of the wire 7 is electrically connected to the high-voltage transformer 4 to supply power to it. Direct power supply via the wire 7 ensures more stable current and voltage, improving power supply stability. A wire hole 17 is provided at the corresponding position at the rear end of the base 1, and one end of the wire 7 passes through the wire hole 17 to electrically connect to the high-voltage transformer 4.

[0027] The structure of capacitor module 5 mainly consists of two capacitors 501 and multiple diodes 502. The two ends of the diodes 502 are welded and fixed to different capacitors 501 respectively to form a better filtering effect.

[0028] One end of the electrode needle 8 is electrically connected with the high-voltage resistor 6, and the other end extends to the front of the base 1. When high-voltage electricity is transmitted to the electrode needle 8, high-voltage static electricity is formed at the tip of the electrode needle 8, and then the coating is charged in the sprayed powder, and under the action of electrostatic force, the powder is adsorbed to the surface of the sprayed object. In addition, the electrode needle also plays a role in guiding the current, ensuring that the high-voltage power supply can stably and efficiently output current. Compared with the traditional structure, the electrode needle 8 extends outward for a longer length, better guides the powder when the spray gun sprays the powder, and makes the sprayed powder more uniform.

[0029] In order to further fix the position of the electrode needle 8 in the needle groove 3, a fixing ring 9 is sleeved outside the electrode needle 8, and the fixing ring 9 is arranged in the needle groove 3 to fix the position of the electrode needle 8.

[0030] It should be noted that in order to more conveniently and quickly install the high-voltage transformer 4, the capacitor module 5 and the high-voltage resistor 6 in the accommodating cavity 2, a first fixing station 10 for fixing the high-voltage transformer 4, a second fixing station 11 for fixing the capacitor module 5 and a third fixing station 12 for fixing the high-voltage resistor 6 are arranged in the accommodating cavity 2. When installing, the high-voltage transformer 4, the capacitor module 5 and the high-voltage resistor 6 only need to be clamped in the corresponding positions.

[0031] At the same time, the accommodating cavity 2 and the needle groove 3 are filled with transparent epoxy resin, which is used to encapsulate and fix the positions of the high-voltage transformer 4, the capacitor module 5, the high-voltage resistor 6 and the electrode needle 8, and can effectively isolate the electronic components inside the high-voltage module to prevent electrical short circuit or breakdown. The transparent epoxy resin also has temperature resistance and can maintain stable performance in a certain high temperature or low temperature environment to ensure the normal operation of the high-voltage module. At the same time, a plurality of heat dissipation holes 16 are arranged on the base 1 for heat dissipation. The heat dissipation holes 16 are distributed on both sides of the base 1 and can timely discharge the internal heat.

[0032] The front end and the rear end of the base 1 are respectively provided with a front clamping part 14 and a rear clamping part 15 for clamping fixation. The electrode needle 8 extends forward through the inside of the front clamping part 14. The front clamping part 14 and the rear clamping part 15 are mainly used to better fix the position of the spray gun module when the spray gun is assembled. The front and rear can be directly and quickly installed through clamping.

[0033] In order to better protect the effect and prevent dust, etc., a cover 18 is detachably connected to the top of the base 1. When the cover 18 is connected with the base 1, the bottom of the cover 18 is provided with an insertion rod 19 inserted into the base 1 for fixation. The base 1 is provided with a insertion slot 13 matched with the insertion rod 19 at the corresponding position. When the user needs to maintain the structure inside the base 1, the cover 18 can be directly disassembled. After maintenance, the cover can be directly closed.

[0034] Compared with the prior art, the powder spray gun module provided by the technical scheme directly connects the lead wire 7 with the high-voltage transformer 4, directly supplies power to the high-voltage transformer 7, helps to improve the stability of the current and voltage during power supply, and avoids the lead wire from falling off during power supply.

[0035] It is obvious for those skilled in the art that the present application is not limited to the details of the foregoing exemplary embodiments, and the present application can be implemented in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be regarded as exemplary and non-limiting, and the scope of the present application is defined by the appended claims rather than the foregoing description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application, and any reference signs in the claims should not be regarded as limiting the claims involved.

Claims

1. A powder spray gun module, comprising a base, a containing cavity and a needle slot in the base, a high-voltage transformer, a capacitor module and a high-voltage resistor are installed in the containing cavity, the high-voltage transformer, the capacitor module and the high-voltage resistor are electrically connected in sequence, characterized in that: The rear end of the base is connected with a wire, one end of the wire is electrically connected with the high-voltage transformer, and the wire is used for supplying power to the high-voltage transformer.

2. The powder spray gun module of claim 1, wherein: The accommodating cavity is sequentially provided with a first fixing station, a second fixing station and a third fixing station for fixing the high-voltage transformer, the capacitor module and the high-voltage resistor respectively.

3. The powder spray gun module of claim 1, wherein: The accommodating cavity and the needle groove are filled with transparent epoxy resin, and the transparent epoxy resin is used for packaging and fixing the positions of the high-voltage transformer, the capacitor module, the high-voltage resistor and the electrode needle.

4. The powder spray gun module of claim 1, wherein: The front end and the rear end of the base are respectively provided with a front clamping part and a rear clamping part for clamping fixation, and the electrode needle extends forward through the inside of the front clamping part.

5. The powder spray gun module of claim 1, wherein: The base is provided with a plurality of heat dissipation holes for heat dissipation, and the heat dissipation holes are distributed on both sides of the base.

6. The powder spray gun module of claim 1, wherein: The rear end of the base is provided with a wire hole, and one end of the wire passes through the wire hole and is electrically connected with the high-voltage transformer.

7. The powder spray gun module of claim 1, wherein: The top of the base is detachably connected with a cover, the bottom of the cover is provided with an insertion rod inserted into the base for fixation, and the base is provided with an insertion slot matched with the insertion rod at the corresponding position.

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