A paint delivery mechanism for a paint spray gun

Abstract

The utility model belongs to paint spray gun technical field, concretely relates to a paint conveying mechanism of paint spray gun, including feed pipe, feed pipe sets up between the paint inlet and paint spraying mouth of paint spray gun, feed pipe can rotate with the center line as the shaft, the liquid inlet end of feed pipe is fixed with broken blade, when paint enters feed pipe, can be broken by the broken blade of rotation, a plurality of disturbance convexities are arranged on the inner wall of feed pipe, and the disturbance convexity is used for mixing paint evenly. The paint conveying mechanism in scheme can break the paint in paint spray gun, reduce the flocculation in paint, reduce the flocculation in paint to cause the blockage of paint spray gun, effectively reduce the blockage probability of paint spray gun.

Description

Technical Field

[0001] This utility model belongs to the field of paint spray gun technology, specifically relating to a paint delivery mechanism for a paint spray gun. Background Technology

[0002] A paint spray gun is a tool used to spray various liquid coatings. It is widely used in painting work in furniture, automobiles, ships, construction and other fields, which can improve painting efficiency and quality, and reduce waste and environmental pollution. Its basic principle is to use compressed air to flow through the nozzle and atomize the delivered paint into microparticles under the action of high-speed jet force and spray them onto the surface of the object to be coated.

[0003] During the mixing process, paint is prone to producing particulate clumps. When spraying for extended periods, these clumps can easily clog the nozzle, causing blockages and increasing internal pressure within the spray gun, thus reducing its lifespan. Therefore, it is necessary to design a structure that can break down and mix the paint within the spray gun. Utility Model Content

[0004] To address the aforementioned problems in the existing technology, this solution provides a paint delivery mechanism for a paint spray gun.

[0005] The technical solution adopted in this utility model is as follows:

[0006] A paint delivery mechanism for a paint spray gun includes a feeding pipe disposed between the paint inlet and the spray nozzle of the paint spray gun. The feeding pipe is rotatable around its center line. A crushing blade is fixed at the inlet end of the feeding pipe, and the paint is crushed by the rotating crushing blade when it enters the feeding pipe. Several turbulence protrusions are provided on the inner wall of the feeding pipe for mixing the paint.

[0007] As an alternative to the above structure, the turbulence protrusions are distributed along a spiral.

[0008] As an alternative to the above structure, a rotary motor is also included, which includes a stator and a rotor. The rotor is rotatably disposed inside the stator and is fixedly connected to the middle of the feeding pipe, and the rotor is coaxial with the feeding pipe.

[0009] As an alternative to the above structure: the crushing blade is V-shaped and connected to the edge of the feed pipe.

[0010] As an alternative to the above structure: a needle rod is inserted into the feeding tube, with both ends of the needle rod extending beyond the feeding tube.

[0011] As an alternative to the above structure, the surface of the needle bar is provided with a textured surface for resisting paint.

[0012] As an alternative to the above structure: the liquid outlet end of the feeding tube is provided with two straightening tongues, which are spaced apart from each other; the needle bar is straightened at the center of the feeding tube by the cooperation of the two straightening tongues.

[0013] As an alternative to the above structure: V-shaped grooves are provided on the opposite inner sides of the two straightening tongues, and the V-shaped grooves are distributed along a spiral line.

[0014] The beneficial effects of this utility model are as follows: the paint conveying mechanism in this solution can break up the paint entering the paint spray gun, reduce the flocs in the paint, reduce the clogging caused by the flocs in the paint to the paint spray gun, and effectively reduce the probability of clogging of the paint spray gun. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this scheme or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0016] Figure 1 This is a schematic diagram of the feed tube structure;

[0017] Figure 2 This is a cross-sectional view of the feed pipe;

[0018] Figure 3 This is a cross-sectional structural diagram of the paint conveying mechanism;

[0019] Figure 4 This is a schematic diagram of the paint conveying mechanism;

[0020] Figure 5 This is a diagram showing the assembly structure of the feed tube and the needle bar.

[0021] In the diagram: 1-Paint conveying mechanism; 11-Rotating motor; 111-Stator; 112-Rotor; 12-Feeding pipe; 121-Crushing blade; 122-Straightening tongue; 123-Turbulence protrusion; 2-Needle bar. Detailed Implementation

[0022] The technical solutions in this embodiment will be clearly and completely described below with reference to the accompanying drawings. The described embodiments are only some embodiments, not all of them. All other embodiments obtained by those skilled in the art based on the embodiments in this solution without creative effort are within the protection scope of this solution.

[0023] Example 1

[0024] like Figure 1 , 2As shown, this embodiment designs a paint conveying mechanism 1 for a paint spray gun, including a feeding pipe 12. The feeding pipe 12 is disposed between the paint inlet and the spray nozzle of the paint spray gun and is used for conveying paint between the two.

[0025] The feed tube 12 is capable of rotating around its center line; that is, the feed tube 12 can rotate inside the paint spray gun.

[0026] A crushing blade 121 is fixed to the liquid inlet end of the feed pipe 12. The crushing blade 121 can be V-shaped and is connected to the edge of the feed pipe. When the paint enters the feed pipe 12 from the outside of the crushing blade 121 (i.e., the radial outside of the liquid inlet end of the feed pipe 12), the paint will pass through the crushing blade 121. The crushing blade 121, which rotates with the feed pipe 12, can break up the flocs in the paint, thereby reducing the probability of paint spray gun clogging.

[0027] The inner wall of the feed pipe 12 is provided with several turbulence protrusions 123. When the paint passes through the turbulence protrusions 123, it can be turbulent by the turbulence protrusions 123, thereby improving uniformity. In addition, when the turbulence protrusions 123 rotate relative to the paint, they can also further break up the flocs in the paint, thereby mixing the paint evenly.

[0028] When the turbulence protrusions 123 are distributed along a spiral line, they can provide power for the flow of paint during the rotation of the feed tube 12, increase the pressure of the paint flow, and further reduce the probability of paint clogging in the paint spray gun.

[0029] Example 2

[0030] like Figure 3 , 4 As shown, based on the structure of Embodiment 1, the paint delivery mechanism 1 of the paint spray gun also includes a rotary motor 11.

[0031] The rotary motor 11 includes a stator 111 and a rotor 112. The rotor 112 is rotatably disposed within the stator 111 and is fixedly connected to the middle of the feeding pipe 12, with the rotor 112 and the feeding pipe 12 coaxial. The rotary motor 11 can be a brushless motor, and by coaxially arranging the rotor 112 with the feeding pipe 12, space can be effectively saved, achieving full utilization of space.

[0032] When the rotor 112 rotates, it can drive the feeding pipe 12 to rotate synchronously, thereby crushing and mixing the paint in the feeding pipe 12.

[0033] Example 3

[0034] like Figure 5As shown, based on the structure of Embodiment 1 or Embodiment 2, a needle rod 2 is inserted into the feeding tube 12, and both ends of the needle rod 2 extend beyond the feeding tube 12.

[0035] The surface of the needle bar 2 is provided with concave and convex textures to impede the paint, thereby improving the breaking effect of the feed tube 12 on the paint by utilizing the impeding effect of the needle bar 2 surface.

[0036] The liquid outlet end of the feed tube 12 is provided with two straightening tongues 122, which are spaced apart from each other; the needle rod 2 is straightened at the center of the feed tube 12 by the cooperation of the two straightening tongues 122.

[0037] The two straightening tongues 122 are provided with V-shaped grooves on their opposite inner sides, which are distributed along a spiral line to facilitate the guidance of the paint.

[0038] The above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation; it is neither necessary nor possible to exhaustively list all possible implementations. However, obvious variations or modifications derived therefrom remain within the scope of this technology.

Claims

1. A paint delivery mechanism for a paint spray gun, characterized by: Includes a feeding pipe (12), which is located between the paint inlet and the spray nozzle of the paint spray gun. The feeding pipe (12) can rotate around its center line. A crushing blade (121) is fixed at the liquid inlet end of the feeding pipe (12). When the paint enters the feeding pipe (12), it can be crushed by the rotating crushing blade (121). Several turbulence protrusions (123) are provided on the inner wall of the feeding pipe (12). The turbulence protrusions (123) are used to mix the paint.

2. A paint delivery mechanism for a paint sprayer according to claim 1, characterized in that: The turbulence protrusions (123) are distributed along a spiral line.

3. A paint delivery mechanism for a paint sprayer according to claim 1, wherein: It also includes a rotating motor (11), which includes a stator (111) and a rotor (112). The rotor (112) is rotatably disposed inside the stator (111) and is fixedly connected to the middle of the feeding pipe (12). The rotor (112) is coaxial with the feeding pipe (12).

4. A paint delivery mechanism for a paint sprayer according to claim 1, wherein: The crushing blade (121) is V-shaped and connected to the edge of the feed pipe.

5. A paint delivery mechanism for a paint sprayer according to claim 1, wherein: A needle rod (2) is inserted into the feeding tube (12), and both ends of the needle rod (2) extend beyond the feeding tube (12).

6. A paint delivery mechanism for a paint sprayer according to claim 5, wherein: The surface of the needle bar (2) is provided with a textured surface for resisting paint.

7. A paint delivery mechanism for a paint sprayer according to claim 5, wherein: The liquid outlet end of the feed tube (12) is provided with two straightening tongues (122), which are spaced apart from each other; the needle rod (2) is straightened at the center of the feed tube (12) by the cooperation of the two straightening tongues (122).

8. A paint delivery mechanism for a paint sprayer according to claim 6, wherein: The two straightening tongues (122) are provided with V-shaped grooves on their opposite inner sides, and the V-shaped grooves are distributed along a spiral line.

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