A powder spreading device for the production of coatings

Abstract

The application belongs to the technical field of material forming, and particularly relates to a powder laying device for preparing a coating. In view of the problem of uneven coating leading to uneven surface, the following scheme is provided. The device comprises a fixing seat, a fixing hole is formed in the fixing seat, two guide rails are arranged on the fixing seat, a hollow cavity is formed in the fixing seat, a forming body is arranged in the hollow cavity, the bottom surface of a sliding plug is a plane, the surface opposite to the bottom surface is consistent with the concave surface, the sliding plug and the concave surface are matched with each other, the forming body comprises a sliding block and a concave surface, the sliding block is slidably connected with the two guide rails, the concave surface is in arc-shaped distribution, the sliding block extends to the outside of the fixing seat through the guide rails, a guide column is fixedly installed in the fixing hole, the sliding plug is fixedly installed on the guide column, the bottom surface of the fixing seat, the bottom surface of the forming body and the bottom surface of the sliding plug are in the same plane, the device is uniform in coating, good in powder laying effect, simple to use and convenient to operate.

Description

Technical Field

[0001] This invention relates to the field of material forming technology, and in particular to a powder spreading device for preparing coatings. Background Technology

[0002] A coating is a solid, continuous film obtained by applying a paint in a single application. Generally, paint coatings are relatively thin, approximately 20-50 micrometers thick, while thick-film paints can achieve coatings over 1 millimeter thick in a single application. Coatings are thin layers of plastic applied to substrates such as metals, fabrics, and plastics for purposes such as protection, insulation, and decoration. They have different names depending on the type of paint used; for example, a primer coating is called a primer layer, and a topcoat coating is called a topcoat layer. Powder metallurgy is an industrial technology that uses metal powders (or mixtures of metal and non-metal powders) as raw materials, through forming and sintering, to produce metallic materials, composite materials, and various types of products. Powder metallurgy technology has been widely applied in transportation, machinery, electronics, aerospace, weaponry, biology, new energy, information, and nuclear industries, becoming one of the most dynamic branches of new materials science. Powder metallurgy technology has significant energy-saving advantages. With its advantages of high efficiency, material saving, excellent performance, high product precision, and good stability, powder metallurgy is very suitable for mass production. In addition, some materials and complex parts that cannot be prepared by traditional casting and machining methods can also be manufactured using powder metallurgy technology, which has attracted much attention from the industry. When preparing coatings using metallurgical powders, there is usually a powder spreading step. The powder is loose when fed in a synchronous manner, which can easily cause splashing and material waste during coating preparation. The manual pre-powder method is simple to operate and low in cost, but the traditional manual pre-powder method involves manual application, which has low powder spreading efficiency and uneven powder application. This not only causes large random errors in the coating and makes it impossible to reproduce the shape and density of the pre-powder, but also easily causes defects such as uneven application, uneven surface, inclusions, and bubbles. Therefore, we propose a powder spreading device for preparing coatings. Summary of the Invention

[0003] The purpose of this invention is to address the shortcomings of existing technologies where uneven coating leads to uneven surfaces, and to propose a powder spreading device for preparing coatings.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A powder spreading device for preparing a coating includes a fixed base with a fixing hole, two guide rails, and a hollow cavity with a forming body disposed therein.

[0006] Preferably, the bottom surface of the sliding plug is a plane, and the surface opposite to the bottom surface has the same curvature as the concave surface, so that the sliding plug and the concave surface cooperate with each other.

[0007] Preferably, the shaped body includes a slider and a concave surface, the slider being slidably connected to two guide rails, and the concave surface being arc-shaped.

[0008] Preferably, the slider passes through the guide rail and extends to the outside of the fixed base.

[0009] Preferably, a guide post is fixedly installed inside the fixing hole, and a sliding plug is fixedly installed on the guide post.

[0010] Preferably, the bottom surface of the fixed seat, the bottom surface of the shaped body, and the bottom surface of the sliding plug are on the same plane.

[0011] Preferably, the sliding plug is in close contact with the inner wall of the molded body and is slidable.

[0012] Preferably, both guide rails have through holes, and the slider is slidably connected to the inner walls of the two through holes.

[0013] The beneficial effects of the powder spreading device for preparing a coating described in this invention are as follows: The guide post and the forming body are both mounted on a fixed base. During use, by reversing the powder spreading device so that the concave surface of the forming body faces upwards, the slider on the forming body is moved along the guide rail on the fixed base to move the forming body to the end away from the fixing hole. The length of the guide post in the hollow cavity of the fixed base is adjusted at the fixing hole so that the sliding plug on the guide post fits against the concave surface of the forming body, thus fixing the guide post at the fixing hole of the fixed base. Metallurgical powder and binder are mixed into a paste and applied into the cavity formed by the forming body, fixed base, and sliding plug until the powder fills the cavity and is flush with the bottom surface of the fixed base. The bottom surface of the fixed base is fixed at the powder spreading position, such as with double-sided tape, clips, bolts, nuts, etc. Figure 2 As shown, with the top surface of the fixing seat facing upwards, slide the slider of the molding body along the guide rail of the fixing seat towards the fixing hole until the sliding plug slides out along the concave surface of the molding body. Remove the fixing seat at the powder spreading position to complete the powder spreading. The powder is spread evenly and the surface is flat. There are basically no impurities, undercooked parts, bubbles, etc., and the powder spreading effect is good.

[0014] This invention provides even coating, a smooth surface, good powder spreading effect, and is simple and easy to use. Attached Figure Description

[0015] Figure 1 This is a schematic front view of a powder spreading device for preparing a coating according to the present invention;

[0016] Figure 2 This is a schematic diagram of the sliding length of a powder spreading device for preparing a coating according to the present invention;

[0017] Figure 3 This is a schematic diagram of the structure of the fixing seat of the powder spreading device for preparing a coating proposed in this invention;

[0018] Figure 4 This is a schematic diagram of the back structure of the powder spreading device for preparing a coating proposed in this invention;

[0019] Figure 5 This is a front view of the guide column of a powder spreading device for preparing a coating proposed in this invention.

[0020] In the diagram: 1. Fixing base; 11. Fixing hole; 12. Guide rail; 13. Hollowed-out cavity; 2. Molded body; 21. Slider; 22. Concave surface; 3. Guide post; 31. Sliding plug. Detailed Implementation

[0021] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0022] Example 1

[0023] Reference Figures 1-3 A powder spreading device for preparing a coating includes a fixed base 1, a fixed hole 11 on the fixed base 1, two guide rails 12 on the fixed base 1, a hollow cavity 13 on the fixed base 1, and a forming body 2 disposed inside the hollow cavity 13.

[0024] Reference Figure 4 The forming body 2 includes a slider 21 and a concave surface 22. The slider 21 is slidably connected to two guide rails 12, and the concave surface 22 is arc-shaped.

[0025] Reference Figures 2-5 A guide post 3 is fixedly installed inside the fixing hole 11, and a sliding plug 31 is fixedly installed on the guide post 3.

[0026] Reference Figure 2 The sliding plug 31 fits tightly against the inner wall of the molded body 2 and can slide.

[0027] Reference Figure 2 The bottom surface of the sliding plug 31 is a plane, and the surface opposite to the bottom surface has the same curvature as the concave surface 22. The sliding plug 31 and the concave surface 22 cooperate with each other to ensure that the molded body 2 can slide stably.

[0028] Reference Figure 1 The slider 21 passes through the guide rail 12 and extends to the outside of the fixed seat 1.

[0029] Reference Figure 2 The bottom surface of the fixed seat 1, the bottom surface of the molded body 2, and the bottom surface of the sliding plug 31 are on the same plane to ensure flatness.

[0030] Reference Figure 2Both guide rails 12 have through holes, and the slider 21 is slidably connected to the inner wall of the two through holes to ensure that the slider 21 slides stably on the guide rails 12.

[0031] In this embodiment, during use, the powder spreading device is reversed so that the concave surface 22 of the forming body 2 faces upward. The slider 21 on the forming body 2 is moved along the guide rail 12 on the fixing seat 1, sliding the forming body 2 away from the end with the fixing hole 11. The length of the guide post 3 in the hollow cavity 13 of the fixing seat 1 is adjusted within the fixing hole 11 so that the sliding plug 31 on the guide post 3 fits against the concave surface 22 of the forming body 2, fixing the guide post 3 at the fixing hole 11 on the fixing seat 1. Metallurgical powder and binder are mixed into a paste and applied into the cavity formed by the forming body 2, the fixing seat 1, and the sliding plug 31 until the powder fills the cavity and is flush with the bottom surface of the fixing seat 1. The bottom surface of the fixing seat 1 is then fixed in the powder spreading position, for example, using double-sided tape, clips, bolts, nuts, etc. Figure 2 As shown, with the top surface of the fixing seat 1 facing upwards, slide the slider 21 of the molding body 2 along the guide rail 12 of the fixing seat 1 towards the fixing hole 11 until the sliding plug 31 slides out along the concave surface 22 of the molding body 2, remove the powder spreading position fixing seat 1, and the powder spreading is completed.

[0032] Example 2

[0033] The difference between this embodiment and embodiment one is that a stud is fixedly installed on the guide post 3, and two nuts are provided on the stud.

[0034] In this embodiment, during use, the powder spreading device is reversed so that the concave surface 22 of the forming body 2 faces upward. The slider 21 on the forming body 2 is moved along the guide rail 12 on the fixing seat 1, sliding the forming body 2 away from the end with the fixing hole 11. The length of the guide post 3 in the hollow cavity 13 of the fixing seat 1 is adjusted within the fixing hole 11 so that the sliding plug 31 on the guide post 3 fits against the concave surface 22 of the forming body 2. First, a nut is removed, then the stud on the guide post 3 is inserted into the fixing hole 11 on the fixing seat 1. The nut that was just removed is screwed back on, and then the guide post 3 is fixedly connected to the fixing seat 1 by rotating the two nuts. Metallurgical powder and binder are mixed into a paste and applied into the cavity formed by the forming body 2, fixing seat 1, and sliding plug 31 until the powder fills the cavity and is flush with the bottom surface of the fixing seat 1. The bottom surface of the fixing seat 1 is then fixed in the powder spreading position, for example, using double-sided tape, clips, bolts, nuts, etc. Figure 2 As shown, with the top surface of the fixing seat 1 facing upwards, slide the slider 21 of the molding body 2 along the guide rail 12 of the fixing seat 1 towards the fixing hole 11 until the sliding plug 31 slides out along the concave surface 22 of the molding body 2, remove the powder spreading position fixing seat 1, and the powder spreading is completed.

[0035] Example 3

[0036] The difference between this embodiment and embodiment one is that: multiple fixing plates are provided on both sides of the fixing base 1, each fixing plate has a through hole, each through hole has a screw, and each screw has a washer fitted on it.

[0037] In this embodiment, during use, the powder spreading device is reversed so that the concave surface 22 of the forming body 2 faces upward. The slider 21 on the forming body 2 is moved along the guide rail 12 on the fixing seat 1, sliding the forming body 2 away from the end with the fixing hole 11. The length of the guide post 3 in the hollow cavity 13 of the fixing seat 1 is adjusted within the fixing hole 11 so that the sliding plug 31 on the guide post 3 fits against the concave surface 22 of the forming body 2. First, a nut is removed, then the stud on the guide post 3 is inserted into the fixing hole 11 on the fixing seat 1. The nut that was just removed is screwed back on, and then the guide post 3 is fixedly connected to the fixing seat 1 by rotating the two nuts. Metallurgical powder and binder are mixed into a paste and applied into the cavity formed by the forming body 2, the fixing seat 1, and the sliding plug 31 until the powder fills the cavity and is flush with the bottom surface of the fixing seat 1. The bottom surface of the fixing seat 1 is placed in the powder spreading position. Washers are fitted onto the screws, and then the screws are inserted into the through holes on multiple fixing plates to fix the fixing seat 1. Figure 2 As shown, with the top surface of the fixing seat 1 facing upwards, slide the slider 21 of the molding body 2 along the guide rail 12 of the fixing seat 1 towards the fixing hole 11 until the sliding plug 31 slides out along the concave surface 22 of the molding body 2, remove the powder spreading position fixing seat 1, and the powder spreading is completed.

[0038] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A powder spreading apparatus for preparing a coating, comprising a fixing base (1), characterized in that, The fixing base (1) has a fixing hole (11), two guide rails (12) are provided on the fixing base (1), and a hollow cavity (13) is provided on the fixing base (1). A forming body (2) is provided inside the hollow cavity (13). The forming body (2) includes a slider (21) and a concave surface (22). The slider (21) is slidably connected to the two guide rails (12), and the concave surface (22) is arc-shaped. A guide post (3) is fixedly installed in the fixing hole (11), and a sliding plug (31) is fixedly installed on the guide post (3). The sliding plug (31) is tightly fitted to the inner wall of the forming body (2) and can slide. The bottom surface of the sliding plug (31) is a plane, and the surface opposite to the bottom surface has the same curvature as the concave surface (22). The sliding plug (31) and the concave surface (22) cooperate with each other. The bottom surface of the fixed seat (1), the bottom surface of the molding body (2) and the bottom surface of the sliding plug (31) are on the same plane. With the top surface of the fixed seat (1) facing up, the slider (21) of the molding body (2) is moved along the guide rail (12) of the fixed seat (1) towards the direction close to the fixed hole (11) until the sliding plug (31) slides out along the concave surface (22) of the molding body (2). The fixed seat (1) at the powder-spreading position is then removed.

2. The powder spreading apparatus for preparing a coating according to claim 1, characterized in that, The slider (21) passes through the guide rail (12) and extends to the outside of the fixed seat (1).

3. The powder spreading apparatus for preparing a coating according to claim 1, characterized in that, Both guide rails (12) have through holes, and the slider (21) is slidably connected to the inner wall of the two through holes.

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