Multi-stage lapping equipment for powder coating production

Abstract

The utility model discloses multi-stage fine grinding equipment for powder coating production. The multi-stage fine grinding equipment comprises a feeding hopper, a first-stage grinding assembly, a second-stage grinding assembly and a discharging bin assembly. The feeding hopper is vertically placed, the bottom of the feeding hopper is connected with the first-stage grinding assembly, and the first-stage grinding assembly conducts first-stage grinding through a grinding cylinder. A second-stage grinding assembly is connected below the first-stage grinding assembly, the second-stage grinding assembly is provided with a variable-diameter shell, and a cone with an upward cone tip is arranged at an inlet of the variable-diameter shell. A second grinding motor is arranged below the cone, the second grinding motor is vertically and downwards fixed in the variable-diameter shell through a motor mounting rod, a grinding body is arranged on an output shaft of the second grinding motor, the grinding body is conical, a pointed cone faces downwards, a grinding disc is arranged below the grinding body, and the lower portion of the variable-diameter shell communicates with a discharging bin assembly. According to the device provided by the utility model, multi-stage grinding is adopted, so that the uniformity of coating particles is improved, and the performance of powder coating can be improved; and the grinding particle size can be adjusted to meet different production requirements.

Description

Technical Field

[0001] The utility model belongs to the technical field of powder coating production, and particularly relates to a multi-stage lapping device used for powder coating production. Background Art

[0002] Powder coating is a solid powdered synthetic resin coating composed of solid resin, pigment, filler and additives. Unlike ordinary solvent-based coatings and water-based coatings, its dispersion medium is not solvent and water, but air. It has the characteristics of no solvent pollution, 100% film formation and low energy consumption. Powder coatings are divided into two categories: thermoplastic and thermosetting. The uniformity and particle size of the coating powder will affect the density, adhesion, impact strength and toughness of the coating, and also have a vital impact on its chemical corrosion resistance and electrical insulation performance. In the production process of powder coating, a pulverizer is needed to pulverize the coating raw materials, but the pulverization effect is not ideal if the coating is pulverized only by a pulverizing roller, and the coarseness and fineness of the powder are large, resulting in poor use effect in the later stage. Therefore, in order to grind the coating raw materials into particles that meet the requirements, it is of high production and practical value to develop a grinding equipment suitable for powder coating production. Utility Model Content

[0003] In order to solve the above technical problems, the utility model provides the following technical solutions: a multi-stage grinding equipment for powder coating production, comprising a feed hopper, a primary grinding assembly, a secondary grinding assembly and a discharge bin assembly.

[0004] The feed hopper is placed vertically, and has an outer shell that is wider at the top and narrower at the bottom.

[0005] The first-level grinding assembly is connected to the bottom of the feed hopper, and the first-level grinding assembly has an arc-shaped convex shell. A group of first grinding motors are horizontally installed on the left side wall of the arc-shaped convex shell. The output shaft of the first grinding motor is connected to a group of grinding cylinders, and the grinding cylinders are rotatably installed in parallel in the arc-shaped convex shell.

[0006] The secondary grinding assembly is connected below the primary grinding assembly, and the secondary grinding assembly has a variable diameter shell, a cone is provided at the entrance of the variable diameter shell, and the cone is fixed in the variable diameter shell with the cone tip facing upward through a plurality of cone mounting rods.

[0007] Furthermore, the diameter of the variable diameter housing increases from top to bottom.

[0008] A second grinding motor is provided below the cone, and the second grinding motor is fixed vertically downward in the variable diameter housing through a plurality of motor mounting rods. A grinding body is provided on the output shaft of the second grinding motor, and the grinding body is conical with the pointed cone facing downward, and a grinding disc is provided below the grinding body.

[0009] Furthermore, the grinding disc is slidably installed at the outlet of the variable diameter shell, the grinding disc has a circular hole in the center and is concave, the grinding disc is coaxially placed with the cone, the gap between the inclined surface of the cone and the inclined surface of the grinding disc narrows from top to bottom, a support ring is provided on the circumference of the grinding disc, and a plurality of hydraulic rods are provided under the support ring.

[0010] The lower part of the variable diameter shell is connected to the discharge bin assembly, and the discharge bin assembly has a bin shell.

[0011] Furthermore, a support ring is provided on the inner wall of the silo shell, and the hydraulic rod is vertically fixed on the support ring.

[0012] Furthermore, the silo shell is provided with a transparent observation window.

[0013] Furthermore, a discharge assembly is provided on the right side of the silo shell, and the discharge assembly includes a solenoid valve, and the solenoid valve is connected to the silo shell through a discharge pipe.

[0014] The utility model provides a multi-stage fine grinding device for powder coating production, which has the following advantages: multi-stage grinding improves the uniformity of coating particles and helps to improve the performance of powder coating; the grinding particle size can be adjusted to meet different powder coating production requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 This is a schematic diagram of the appearance of a multi-stage lapping device for powder coating production according to the utility model;

[0017] Figure 2 It is a top view schematic diagram of a multi-stage lapping device for powder coating production of the utility model;

[0018] Figure 3 The utility model is a schematic diagram of the internal structure of a multi-stage lapping device for powder coating production.

[0019] Explanation of the reference numerals in the figure: 1. Feed hopper, 2. Primary grinding assembly, 201. Arc-shaped convex shell, 202. First grinding motor, 203. Grinding cylinder, 3. Secondary grinding assembly, 301. Variable diameter shell, 302. Cone, 303. Second grinding motor, 3031. Motor mounting rod, 304. Grinding body, 305. Grinding disc, 3051. Support ring, 306. Hydraulic rod, 4. Discharge bin assembly, 401, bin shell, 402. Support ring, 403. Transparent observation window, 5. Discharge assembly, 501. Solenoid valve, 5011. Discharge pipe. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all the embodiments. Based on the embodiment of 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.

[0021] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0022] like Figure 1 , Figure 2 , Figure 3 As shown, an embodiment of the utility model is a multi-stage grinding device for powder coating production, comprising a feed hopper 1, a primary grinding assembly 2, a secondary grinding assembly 3 and a discharge bin assembly 4.

[0023] The feed hopper 1 is placed vertically and has a shell that is wide at the top and narrow at the bottom, which is convenient for feeding and gathers the coating raw materials and drops them to the grinding assembly.

[0024] A primary grinding assembly 2 is connected to the bottom of the feed hopper 1. The primary grinding assembly 2 has an arc-shaped convex shell 201. A group of first grinding motors 202 are horizontally installed on the left side wall of the arc-shaped convex shell 201. The output shaft of the first grinding motor 202 is connected to a group of grinding cylinders 203. The grinding cylinders 203 are rotatably installed in parallel in the arc-shaped convex shell 201. The arc-shaped convex shell 201 can wrap the grinding cylinders 203 to increase the efficiency of the primary grinding.

[0025] A secondary grinding assembly 3 is connected below the primary grinding assembly 2. The secondary grinding assembly 3 has a variable diameter shell 301. A cone 302 is provided at the entrance of the variable diameter shell 301. The cone 302 is fixed in the variable diameter shell 301 with the cone tip facing upward through a plurality of cone mounting rods 3021. The cone 302 is used for dispersing and guiding the flow so that the raw material powder ground by the primary grinding assembly 2 is dispersed and falls to the next grinding process.

[0026] Preferably, the diameter of the variable diameter housing 301 increases from top to bottom.

[0027] A second grinding motor 303 is provided below the cone 302. The second grinding motor 303 is fixed vertically downward in the reducer housing 301 through a plurality of motor mounting rods 3031. A grinding body 304 is provided on the output shaft of the second grinding motor 303. The grinding body 304 is conical with the tip facing downward. A grinding disc 305 is provided below the grinding body 304.

[0028] Preferably, the grinding disc 305 is slidably installed at the outlet of the variable diameter shell 301. The grinding disc 305 has a circular hole in the center and is concave, so that the raw material powder can gather and fall. The grinding disc 305 is placed coaxially with the cone 302. The gap between the inclined surface of the cone 302 and the inclined surface of the grinding disc 305 narrows from top to bottom. The raw material powder is subjected to secondary rotation grinding in this gap. A support ring 3051 is provided on the circumference of the grinding disc 305, and a plurality of hydraulic rods 306 are provided below the support ring 3051.

[0029] The lower part of the variable diameter housing 301 is connected to the discharge bin assembly 4 , and the discharge bin assembly 4 has a bin shell 401 .

[0030] Preferably, a support ring 402 is provided on the inner wall of the silo shell 401, and a hydraulic rod 306 is vertically fixed on the support ring 402. The movement of the hydraulic rod 306 can control the gap between the inclined surface of the cone 302 and the inclined surface of the grinding disc 305, thereby controlling the particle size of the secondary rotary grinding.

[0031] Preferably, the silo housing 401 is provided with a transparent observation window 403 to facilitate observation of the conditions inside the silo.

[0032] Preferably, a discharge assembly 5 is provided on the right side of the silo housing 401. The discharge assembly 5 includes a solenoid valve 501. The solenoid valve 501 is connected to the silo housing 401 through a discharge pipe 5011. The opening and closing of the solenoid valve 501 controls the finished powder to enter the next process.

[0033] The device embodiments described above are merely illustrative, wherein the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the scheme of this embodiment. Ordinary technicians in this field can understand and implement it without paying creative labor.

[0034] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.

Claims

1. A multi-stage lapping device for powder coating production, characterized in that: It comprises a feed hopper (1), a primary grinding assembly (2), a secondary grinding assembly (3) and a discharge bin assembly (4); The feed hopper (1) is placed vertically and has an outer shell that is wide at the top and narrow at the bottom; The bottom of the feed hopper (1) is connected to the primary grinding assembly (2), the primary grinding assembly (2) having an arc-shaped convex shell (201), a group of first grinding motors (202) being laterally mounted on the left side wall of the arc-shaped convex shell (201), the output shaft of the first grinding motor (202) being connected to a group of grinding cylinders (203), the grinding cylinders (203) being rotatably mounted in parallel in the arc-shaped convex shell (201); The secondary grinding assembly (3) is connected below the primary grinding assembly (2), the secondary grinding assembly (3) comprising a diameter-changing housing (301), a cone (302) being provided at the entrance of the diameter-changing housing (301), the cone (302) being fixed in the diameter-changing housing (301) with the cone tip facing upwards via a plurality of cone mounting rods (3021); A second grinding motor (303) is provided below the cone (302); the second grinding motor (303) is fixed vertically downward in the diameter-changing housing (301) via a plurality of motor mounting rods (3031); a grinding body (304) is provided on the output shaft of the second grinding motor (303); the grinding body (304) is conical with the tip of the cone facing downward; a grinding disc (305) is provided below the grinding body (304); The lower part of the variable diameter housing (301) is connected to the discharge bin assembly (4), and the discharge bin assembly (4) has a bin housing (401).

2. A multi-stage lapping device for powder coating production according to claim 1, characterized in that: The diameter of the variable diameter housing (301) increases from top to bottom.

3. The multi-stage lapping equipment for powder coating production according to claim 1, characterized in that: The grinding disc (305) is slidably mounted at the outlet of the variable diameter housing (301); a circular hole is provided in the center of the grinding disc (305) and is concave; the grinding disc (305) is coaxially arranged with the cone (302); the gap between the inclined surface of the cone (302) and the inclined surface of the grinding disc (305) narrows from top to bottom; a supporting ring (3051) is provided on the circumference of the grinding disc (305), and a plurality of hydraulic rods (306) are provided below the supporting ring (3051).

4. The multi-stage lapping equipment for powder coating production according to claim 3, characterized in that: A support ring (402) is provided on the inner wall of the silo shell (401), and the hydraulic rod (306) is vertically fixed on the support ring (402).

5. The multi-stage lapping equipment for powder coating production according to claim 1, characterized in that: The silo shell (401) is provided with a transparent observation window (403).

6. The multi-stage lapping equipment for powder coating production according to claim 1, characterized in that: A discharge assembly (5) is provided on the right side of the silo housing (401), wherein the discharge assembly (5) comprises a solenoid valve (501), and the solenoid valve (501) is connected to the silo housing (401) via a discharge pipe (5011).

Images