Spray head for electrostatic spraying

Abstract

The utility model provides a spray head for electrostatic spraying, which relates to the technical field of electrostatic spraying equipment, and comprises a thread mounting head, a channel opening is arranged on one side of the thread mounting head, a spray head body is fixedly mounted at the position of the channel opening of the thread mounting head, and a connecting ring is sleeved on the outer surface of the spray head body. And track rods are fixedly connected to the two sides of the connecting ring, the lead screw is rotated to drive the mounting plate to linearly move along the track rods, then the separation size between the blocking pieces for blocking the spraying opening of the spray head body is adjusted, and therefore the effect of adjusting the spraying range of the spray head body is achieved, and practicability is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of electrostatic spraying equipment, in particular to a spray head for electrostatic spraying. Background Art

[0002] Electrostatic spraying refers to a coating method that uses the principle of corona discharge to make the atomized paint negatively charged under the action of a high-voltage DC electric field, and then adsorbed on the surface of a positively charged substrate to discharge. The electrostatic spraying equipment consists of a spray gun, a spray cup, and an electrostatic spray high-voltage power supply.

[0003] However, in the prior art, most of the nozzles installed on the spray guns during electrostatic spraying cannot adjust the spraying range. When spraying some small workpieces, due to the large initial spraying range, a large amount of paint may not be sprayed on the workpiece, resulting in a waste of paint. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings existing in the prior art: during electrostatic spraying, most of the nozzles installed on the spray gun cannot adjust the spraying range. When spraying some small-volume workpieces, due to the large initial spraying range, a large amount of paint may not be sprayed on the workpiece, resulting in a waste of paint.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a nozzle for electrostatic spraying, including a threaded fitting, a channel opening is opened on one side of the threaded fitting, and a nozzle body is fixedly installed at the channel opening of the threaded fitting, the outer surface of the nozzle body is sleeved with a connecting ring, and both sides of the connecting ring are fixedly connected to a track rod, the connecting ring is located at a position on one side of the track rod and is rotatably connected to a screw rod, a mounting plate is slidably connected to the track rod, and the mounting plate is threadedly connected to the screw rod, and a blocking member is fixedly connected to one end of the mounting plate.

[0006] As a preferred implementation, a torsion disk is fixedly connected to one side of the screw rod.

[0007] As a preferred embodiment, an arc-shaped sliding block is fixedly connected to the inner surface of the connecting ring, and an arc-shaped sliding groove is provided on the outer surface of the nozzle body, and the arc-shaped sliding block is slidably connected in the arc-shaped sliding groove.

[0008] As a preferred embodiment, a bolt is threadedly penetrated through the outer surface of the connecting ring, and a threaded hole is opened on the outer surface of the nozzle body, and the number of the threaded holes is set to two, and the threaded hole is threadedly connected to the bolt.

[0009] As a preferred embodiment, the length of the arc-shaped slide groove is half of the length of a circle at the rear end of the nozzle body, and the length of the arc-shaped sliding block is half of the length of the arc-shaped slide groove.

[0010] Compared with the prior art, the advantages and positive effects of the utility model are:

[0011] The utility model drives the mounting plate to move linearly along the track rod by rotating the screw rod, thereby adjusting the separation size between the blocking members for blocking the injection port of the nozzle body, thereby achieving the effect of adjusting the spraying range of the nozzle body, making it possible to adjust the spraying range according to the volume of the workpiece itself, thereby reducing the situation where a large amount of paint is not sprayed on the workpiece and reducing the waste of paint. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 A schematic diagram of the overall structure of an electrostatic spraying nozzle provided by the utility model;

[0013] Figure 2 A schematic diagram of the structure of a connection ring of a nozzle for electrostatic spraying provided by the utility model;

[0014] Figure 3 The utility model provides a schematic structural diagram of the periphery of a nozzle body of an electrostatic spraying nozzle.

[0015] Legend:

[0016] 1. Threaded joint; 2. Nozzle body; 3. Connecting ring; 4. Track rod; 5. Screw rod; 6. Torsion plate; 7. Mounting plate; 8. Stopper; 9. Bolt; 10. Arc-shaped slider; 11. Threaded hole; 12. Arc-shaped slide groove. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0018] Example 1

[0019] like Figure 1-3As shown, the utility model provides a technical solution: a nozzle for electrostatic spraying, comprising a threaded mounting joint 1, a passage opening is opened on one side of the threaded mounting joint 1, and a nozzle body 2 is fixedly installed at the position of the passage opening of the threaded mounting joint 1, and a connecting ring 3 is sleeved on the outer surface of the nozzle body 2, and the connecting ring 3 is movably connected to the nozzle body 2. By rotating the connecting ring 3, the separation opening of the blocking member 8 can be adjusted to be horizontal or vertical. When the separation opening of the blocking member 8 is adjusted to be horizontal, the spraying range of the nozzle body 2 is distributed horizontally, which is convenient for reducing paint waste when a wider workpiece is sprayed. When the separation opening of the blocking member 8 is adjusted to be vertical, the spraying range of the nozzle body 2 is divided vertically. The cloth is convenient for reducing paint waste when a narrow workpiece is sprayed, and track rods 4 are fixedly connected on both sides of the connecting ring 3. The connecting ring 3 is rotatably connected to a screw rod 5 at one side of the track rod 4. A mounting plate 7 is slidably connected to the track rod 4, and the mounting plate 7 is threadedly connected to the screw rod 5. One end of the mounting plate 7 is fixedly connected to a blocking member 8. The mounting plate 7 is driven by rotating the screw rod 5 to move linearly along the track rod 4, and then the separation size between the blocking members 8 that block the injection port of the nozzle body 2 is adjusted, thereby achieving the effect of adjusting the spraying range of the nozzle body 2, so that the spraying range can be adjusted according to the volume of the workpiece itself, thereby improving its practicality.

[0020] Example 2

[0021] like Figure 1-3 As shown, one side of the screw rod 5 is fixedly connected with a torsion plate 6, and the setting of the torsion plate 6 is convenient for manually controlling the screw rod 5 to rotate. The inner surface of the connecting ring 3 is fixedly connected with an arc-shaped slider 10, and the outer surface of the nozzle body 2 is provided with an arc-shaped slide groove 12. The arc-shaped slider 10 is slidably connected in the arc-shaped slide groove 12. Through the cooperation of the arc-shaped slider 10 and the arc-shaped slide groove 12, the connecting ring 3 is prevented from moving back and forth, ensuring that one side of the blocking member 8 can fit the injection port of the nozzle body 2 more closely, thereby improving the blocking quality of the blocking member 8. The outer surface of the connecting ring 3 is threaded with a bolt 9, and the outer surface of the nozzle body 2 is provided with a screw The threaded holes 11 are provided with two, and the threaded holes 11 are threadedly connected with the bolts 9. Through the connection between the bolts 9 and the threaded holes 11, the movable connecting ring 3 is positioned to improve the stability of the connecting ring 3. The length of the arc-shaped slide groove 12 is half of the length of a circle at the rear end of the nozzle body 2, and the length of the arc-shaped slider 10 is half of the length of the arc-shaped slide groove 12. In this way, the connecting ring 3 can stop immediately after rotating ninety degrees to the left or right, which facilitates the docking of the threaded opening on the connecting ring 3 with the threaded hole 11, so that the bolts 9 can be smoothly connected with the threaded hole 11, and there is no need to repeatedly move the connecting ring 3 for position adjustment.

[0022] Working principle:

[0023] like Figure 1-3As shown, when the utility model is in use, when the spraying object is a workpiece with a small volume and a relatively wide body, the user first rotates the threaded joint 1 to install it on the spray gun, then removes the bolt 9 from the connecting ring 3, and manually controls the connecting ring 3 to rotate. The rotation of the connecting ring 3 drives the mounting plate 7 and the blocking member 8 to rotate. The arc-shaped slider 10 and the arc-shaped slide groove 12 limit the rotation of the connecting ring 3, so that the connecting ring 3 stops rotating after rotating ninety degrees, and the separation opening of the blocking member 8 is adjusted to be horizontal. Then, the bolt 9 is reinstalled on the connecting ring 3 and connected to the threaded hole 11 on the nozzle body 2 to ensure the stability of the connecting ring 3 after movement. Then, the screw 5 is driven to rotate by twisting the torsion disk 6, so that the mounting plate 7 carries the blocking member 8 to move in a straight line along the track rod 4, thereby adjusting the size of the separation opening between the blocking members 8 and changing the spraying range, so that the adjusted spraying range is more suitable for small-volume workpieces and reduces the waste of sprayed paint.

[0024] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A nozzle for electrostatic spraying, comprising a threaded mounting head (1), characterized in that: A passage opening is provided on one side of the threaded mounting joint (1), and a nozzle body (2) is fixedly mounted at the position of the passage opening of the threaded mounting joint (1); a connecting ring (3) is sleeved on the outer surface of the nozzle body (2), and track rods (4) are fixedly connected to both sides of the connecting ring (3); a screw rod (5) is rotatably connected to the position of the connecting ring (3) located on one side of the track rod (4); a mounting plate (7) is slidably connected to the track rod (4), and the mounting plate (7) is threadedly connected to the screw rod (5); and a blocking member (8) is fixedly connected to one end of the mounting plate (7).

2. The electrostatic spraying nozzle according to claim 1, characterized in that: A torsion disk (6) is fixedly connected to one side of the screw rod (5).

3. The electrostatic spraying nozzle according to claim 1, characterized in that: The inner surface of the connecting ring (3) is fixedly connected with an arc-shaped sliding block (10), and the outer surface of the nozzle body (2) is provided with an arc-shaped sliding groove (12), and the arc-shaped sliding block (10) is slidably connected in the arc-shaped sliding groove (12).

4. The electrostatic spraying nozzle according to claim 1, characterized in that: The outer surface of the connecting ring (3) is threaded with a bolt (9), and the outer surface of the nozzle body (2) is provided with a threaded hole (11), and the number of the threaded holes (11) is set to two, and the threaded hole (11) is threadedly connected to the bolt (9).

5. The electrostatic spraying nozzle according to claim 3, characterized in that: The length of the arc-shaped slide groove (12) is half the length of a circle at the rear end of the nozzle body (2), and the length of the arc-shaped sliding block (10) is half the length of the arc-shaped slide groove (12).

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