CN211613196U - Composite gun needle - Google Patents

Abstract

The utility model provides a compound gun needle relates to the gun needle field, including gun needle main part, gun needle head and gun needle fixation nut, first screw thread and second screw thread have been seted up at the both ends of gun needle main part, the screw hole has been seted up in the gun needle head, first screw thread and screw hole threaded connection, second screw thread and gun needle fixation nut threaded connection. In the utility model, engineering plastics are used as raw materials, compared with other alloy materials, the processing technology is optimized and simplified, processing waste materials are reduced, the yield of accessories is improved, PEEK has the following characteristics and advantages of low creep deformation, high elastic modulus, excellent friction performance, particular wear resistance, corrosion resistance to various media, accordance with FDA certification and no toxicity; very excellent chemical resistance; insulation and flame retardance.

Description

Composite gun needle

Technical Field

The utility model relates to a gun needle field especially relates to a compound gun needle.

Background

The spray gun is a special tool, the nozzle and the gun needle are used as the most replaceable vulnerable accessories, the abrasion resistance of the spray gun and the gun needle determines the service life of the whole spray gun, and the innovation of the material structure of the gun needle is one of the important concerns in the industry.

The conventional gun needle is made of a single material, i.e., stainless steel (SUS304 or SUS316) or cemented carbide (tungsten steel), which has higher wear resistance and corrosion resistance than stainless steel, but the difficulty and cost of the manufacturing process are much higher than those of stainless steel, and both are not preferable for long term.

Through a plurality of experiments and tests, a novel gun needle structure is changed, a traditional gun needle and a novel composite material are combined by a unique processing technology, and the composite gun needle which is high in abrasion resistance, high in corrosion resistance and lower in manufacturing cost than the traditional gun needle is manufactured, so that the service life of a spray gun in the industry is prolonged, and the industrial production cost is reduced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a compound rifle needle to solve above-mentioned technical problem.

The utility model discloses a solve above-mentioned technical problem, adopt following technical scheme to realize: the utility model provides a compound gun needle, includes gun needle main part, gun needle head and gun needle fixation nut, first screw thread and second screw thread have been seted up at the both ends of gun needle main part, threaded hole has been seted up in the gun needle head, first screw thread and screw hole threaded connection, second screw thread and gun needle fixation nut threaded connection.

Preferably, the material of the head part of the gun needle is special engineering plastic PEEK.

Preferably, the material of the gun needle body is SUS 304.

Preferably, the gun needle fixing nut is made of brass.

The utility model has the advantages that:

the utility model discloses in, through with high wear-resisting high corrosion resistant and insulating special engineering plastics PEEK, through the processing technology of hot pressing, injection moulding and machining, inlay at stainless steel gun needle front end (with coating and nozzle contact part), be applicable to the coating viscosity height, the spraying environment that contains powder greatly, and play unprecedented insulating role in electrostatic coating, the degree of wear under the same time of using in the same kind of coating of the spray gun of the same money of conventional gun needle and compound gun needle, it can be obviously seen that, the degree of wear of compound gun needle is far lower with ordinary gun needle, innovative compound gun needle has been used in large amount at present on our spray gun product, its unusual toughness and wearability, by a wide margin the life of our spray gun needle mouth has been improved, the cost of changing the needle mouth because of wearing and tearing is reduced; the material is made of engineering plastics, and compared with other alloy materials, the processing technology is optimized and simplified, the processing waste is reduced, and the yield of accessories is improved.

Drawings

Fig. 1 is a schematic structural view of a composite gun needle of the present invention;

reference numerals: 1-a gun needle body; 2-the head of the gun needle; 3-the gun needle fixing nut; 4-a first thread; 5-a second thread; 6-threaded hole.

Detailed Description

In order to make the technical means, the creation features, the achievement purposes and the functions of the present invention easy to understand, the present invention will be further explained below with reference to the following embodiments and the accompanying drawings, but the following embodiments are only the preferred embodiments of the present invention, and not all embodiments are included. Based on the embodiments in the implementation, other embodiments obtained by those skilled in the art without any creative efforts belong to the protection scope of the present invention.

Specific embodiments of the present invention will be described below with reference to the accompanying drawings.

Example 1

As shown in fig. 1, a compound type gun needle comprises a gun needle main body 1, a gun needle head 2 and a gun needle fixing nut 3, wherein first threads 4 and second threads 5 are formed at two ends of the gun needle main body 1, a threaded hole 6 is formed in the gun needle head 2, the first threads 4 are in threaded connection with the threaded hole 6, and the second threads 5 are in threaded connection with the gun needle fixing nut 3.

The novel composite type PEEK spray gun has the advantages that the special engineering plastic PEEK with high wear resistance, high corrosion resistance and insulation is embedded at the front end (the contact part with paint and a spray nozzle) of the stainless steel gun needle through the processing technologies of hot pressing, injection molding and machining, is suitable for the spraying environment with high paint viscosity and large powder content, plays an unprecedented insulation role in electrostatic coating, and is widely applied to spray gun products with different toughness and wear resistance, the service life of the spray gun needle nozzle of the spray gun is greatly prolonged, and the cost of replacing the needle nozzle due to wear is reduced; the alloy is made of engineering plastics, compared with other alloy materials, the processing technology is optimized and simplified, the processing waste is reduced, and the yield of accessories is improved

The material of the gun needle head part 2 is special engineering plastic PEEK, and the PEEK has the following characteristics and advantages of low creep deformation, high elastic modulus, excellent friction performance, particular wear resistance, resistance to erosion of various media, accordance with FDA certification and no toxicity; very excellent chemical resistance; insulation and flame retardance.

The material of the gun needle body 1 was SUS 304.

The gun needle fixing nut 3 is made of brass.

The working principle is as follows: the novel composite type PEEK spray gun has the advantages that the special engineering plastic PEEK with high wear resistance, high corrosion resistance and insulation is embedded at the front end (the contact part with paint and a spray nozzle) of the stainless steel gun needle through the processing technologies of hot pressing, injection molding and machining, is suitable for the spraying environment with high paint viscosity and large powder content, plays an unprecedented insulation role in electrostatic coating, and is widely applied to spray gun products with different toughness and wear resistance, the service life of the spray gun needle nozzle of the spray gun is greatly prolonged, and the cost of replacing the needle nozzle due to wear is reduced; the PEEK is characterized by low creep deformation, high elastic modulus, excellent friction performance, wear resistance, resistance to corrosion of various media, accordance with FDA certification and no toxicity; very excellent chemical resistance; insulation and flame retardance.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the description in the above embodiments and the description is only preferred examples of the present invention, and is not intended to limit the present invention, and that the present invention can have various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications all fall into the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (4)

1. The utility model provides a compound rifle needle, includes rifle needle main part (1), rifle needle head (2) and rifle needle fixation nut (3), its characterized in that: first screw thread (4) and second screw thread (5) have been seted up at the both ends of rifle needle main part (1), screw hole (6) have been seted up in rifle needle head (2), first screw thread (4) and screw hole (6) threaded connection, second screw thread (5) and rifle needle fixation nut (3) threaded connection.

2. A compound gun needle as claimed in claim 1, wherein: the gun needle head (2) is made of special engineering plastic PEEK.

3. A compound gun needle as claimed in claim 1, wherein: the material of the gun needle body (1) is SUS 304.

4. A compound gun needle as claimed in claim 1, wherein: the gun needle fixing nut (3) is made of brass.

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