Grinding and screening mechanism for powder coating production

Abstract

This application relates to a grinding and sieving mechanism for powder coating production, including a mounting frame. The mounting frame has a main processing mechanism and a sieving mechanism arranged from top to bottom. The discharge end of the grinding mechanism is connected to the feed end of the sieving mechanism. The sieving mechanism has a first discharge pipe and a second discharge pipe. The first discharge pipe is connected to an auxiliary discharge mechanism, which is connected to a receiving mechanism. The second discharge pipe is connected to the auxiliary grinding mechanism. The auxiliary discharge mechanism includes an auxiliary frame and a cover. One end of the auxiliary frame is threaded to the first discharge pipe, and the other end passes through the receiving mechanism. The cover is fitted onto the auxiliary frame. This application uses the auxiliary frame to support the cover, preventing it from drooping naturally and creating a larger space for transporting materials. The cover prevents dust from being generated during the discharge process, and the end of the auxiliary frame can be aligned with the receiving mechanism, allowing the material to fall accurately from a fixed position, unaffected by the material's gravity.

Description

Technical Field

[0001] This application relates to the field of powder coating technology, and in particular to a grinding and sieving mechanism for powder coating production. Background Technology

[0002] The powder coating process typically involves multiple steps, including raw material mixing, melt extrusion, cooling and pressing, crushing and grinding, and sieving. The grinding step involves grinding the cooled and pressed plastic sheets into powder to meet the particle size requirements of subsequent processing. To prevent excessive dust generation when the material is discharged from the outlet, which could affect the production environment and the health of operators, commercially available processing equipment usually has a cloth covering the outlet to block dust dispersion.

[0003] Because the fabric lacks a dedicated support structure and its tail end usually hangs naturally above the receiving box, the fabric is unstable under its own weight and the impact of the material. On the one hand, the tail end of the fabric cannot form an effective closed barrier due to the lack of support, and some dust will escape from the gaps at the tail end, making it difficult to completely solve the dust problem. On the other hand, the material can only fall from the fabric by its own weight, and as the overall weight of the discharged material changes, the degree of sag of the fabric will change, causing the falling point of the material to constantly shift. This requires operators to frequently adjust the position of the receiving box according to the actual situation in order to accurately catch the material, which not only increases the cumbersomeness of the operation, but may also cause the material to spill due to untimely adjustments, affecting production efficiency and material utilization. Utility Model Content

[0004] This application provides a grinding and sieving mechanism for powder coating production.

[0005] The grinding and sieving mechanism for powder coating production provided in this application adopts the following technical solution:

[0006] A grinding and sieving mechanism for powder coating production includes a mounting frame. The mounting frame has a main processing mechanism and a sieving mechanism arranged from top to bottom. The discharge end of the grinding mechanism is connected to the feed end of the sieving mechanism. The sieving mechanism has a first discharge pipe and a second discharge pipe. The first discharge pipe is connected to an auxiliary discharge mechanism, and the auxiliary discharge mechanism is connected to a receiving mechanism. The second discharge pipe is connected to the auxiliary grinding mechanism. The auxiliary discharge mechanism includes an auxiliary frame and a cover. One end of the auxiliary frame is threaded to the first discharge pipe, and the other end passes through the receiving mechanism. The cover is fitted onto the auxiliary frame.

[0007] Preferably, the auxiliary frame includes an upper sleeve, multiple support bars, and a lower sleeve. The upper sleeve and the lower sleeve are connected by the multiple support bars, and gaps are formed between the multiple support bars. The upper sleeve is threadedly connected to the first discharge pipe.

[0008] Preferably, the outer side of the upper sleeve has an upper recess, and the outer side of the lower sleeve has a lower recess; the cover fabric is provided with an upper drawstring and a lower drawstring, the upper drawstring is sleeved on the upper recess, and the lower drawstring is sleeved on the lower recess.

[0009] Preferably, the receiving mechanism includes a receiving box and a box cover movably connected to the receiving box. The box cover has a receiving port that matches the lower sleeve. The lower sleeve passes through the receiving port. The bottom of the box is provided with multiple rollers.

[0010] Preferably, the grinding mechanism includes a processing body and a feed pipe and a suction motor connected to the processing body. The feed pipe is provided with a flange connecting sleeve for connecting to an auxiliary grinding mechanism.

[0011] In summary, this application includes at least one of the following beneficial technical effects:

[0012] 1. This application uses an auxiliary frame to support the cover cloth, preventing it from drooping naturally and creating a larger space for transporting materials. The cover cloth can prevent dust from being generated during the discharge process of powdery materials, and the end of the auxiliary frame can be aligned with the receiving mechanism, so that the material can fall accurately from a fixed position without being affected by the weight of the material.

[0013] 2. The spacing between the support bars improves the overall toughness of the auxiliary frame, thereby increasing the flexibility of installation. By fixing the upper drawstring rope to the upper recess and the lower drawstring rope to the lower recess, longitudinal sliding of the upper and lower drawstring ropes can be prevented from failing to completely cover the gap and causing leakage. This increases the stability of the connection structure between the cover and the auxiliary frame.

[0014] 3. Multiple rollers allow the receiving box to slide freely, improving the convenience of processing. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of a preferred embodiment of this application.

[0016] Figure 2 This is a schematic diagram of the connection structure between the auxiliary frame and the first discharge pipe in a preferred embodiment of this application.

[0017] Figure 3 This is a schematic diagram of the auxiliary frame in a preferred embodiment of this application.

[0018] Figure 4 This is a schematic diagram of the structure of the cover fabric in a preferred embodiment of this application.

[0019] Explanation of reference numerals in the attached drawings: 1. Mounting frame; 2. Main processing mechanism; 21. Processing body; 22. Feed pipe; 23. Suction motor; 24. Flange connection sleeve; 3. Screening mechanism; 31. First discharge pipe; 32. Second discharge pipe; 4. Auxiliary discharge mechanism; 41. Auxiliary frame; 411. Upper sleeve; 411a. Upper recess; 412. Support bar; 413. Lower sleeve; 413a. Lower recess; 42. Cover cloth; 421. Upper drawstring rope; 422. Lower drawstring rope; 5. Receiving mechanism; 51. Receiving box; 52. Box cover; 521. Receiving port; 53. Roller. Detailed Implementation

[0020] The present application will be further described in detail below with reference to the accompanying drawings.

[0021] This application provides a grinding and sieving mechanism for powder coating production, such as... Figure 1 and Figure 4 As shown, it includes a mounting frame 1, and the mounting frame 1 is provided with a main processing mechanism 2 and a screening mechanism 3 from top to bottom.

[0022] like Figure 1 As shown, the main processing mechanism 2 includes a processing body 21 and a feed pipe 22 and a suction motor 23 connected to the processing body 21. The discharge end of the processing body 21 is connected to the feed end of the screening mechanism 3. A flange connecting sleeve 24 is provided on the feed pipe 22 for connecting to the auxiliary grinding mechanism through the flange connecting sleeve 24. The auxiliary grinding mechanism is a mechanism used for preliminary grinding of materials in the prior art, and a flange sleeve that matches and connects to the flange connecting sleeve 24 is provided on the auxiliary grinding mechanism. After the material is preliminarily ground, the suction motor 23 draws the material from the auxiliary grinding mechanism through the feed pipe 22 into the processing body 21 by generating air circulation. After being deeply ground in the processing body 21, the material enters the screening mechanism 3.

[0023] The screening mechanism 3 is equipped with a first discharge pipe 31 and a second discharge pipe 32. The first discharge pipe 31 is connected to an auxiliary discharge mechanism 4, and the auxiliary discharge mechanism 4 is connected to a receiving mechanism 5. The second discharge pipe 32 is used to connect to the feed inlet of the auxiliary grinding mechanism through a connecting pipe. After the material enters the screening mechanism 3 from the processing body 21, it is screened by the screening mechanism 3. The material whose particle size meets the requirements enters the receiving mechanism 5 through the first discharge pipe 31 and the auxiliary discharge mechanism 4. The material whose size does not meet the requirements enters the auxiliary grinding mechanism through the second discharge pipe 32 and the connecting pipe for cyclic processing until the size meets the requirements.

[0024] like Figures 1 to 4As shown, the auxiliary discharge mechanism 4 includes an auxiliary frame 41 and a cover 42. The auxiliary frame 41 is made of plastic and includes an upper sleeve 411, multiple support bars 412, and a lower sleeve 413. The upper sleeve 411 and the lower sleeve 413 are connected by multiple support bars 412, and gaps are formed between the multiple support bars 412. The gaps give the auxiliary frame 41 a certain degree of toughness and increase the flexibility of installation. The upper sleeve 411 is provided with internal threads and is connected to the first discharge pipe 31 through the internal threads. The lower sleeve 413 is inserted into the receiving mechanism 5.

[0025] like Figure 3 and Figure 4 As shown, an upper recess 411a is formed on the outer side of the upper sleeve 411, and a lower recess 413a is formed on the outer side of the lower sleeve 413. The cover 42 is provided with an upper drawstring 421 and a lower drawstring 422. The cover 42 is sleeved on the outer side of the support bar 412, covering all gaps. The upper drawstring 421 is sleeved on the upper recess 411a, and the lower drawstring 422 is sleeved on the lower recess 413a. The upper recess 411a and the lower recess 413a can prevent the upper drawstring 421 and the lower drawstring 422 from sliding longitudinally, which would prevent them from completely covering the gaps and causing leakage.

[0026] like Figure 2 As shown, the receiving mechanism 5 includes a receiving box 51 and a box cover 52 movably connected to the receiving box 51. The box cover 52 has a receiving port 521 that matches the lower sleeve 413. The lower sleeve 413 passes through the receiving port 521. The bottom of the box is provided with multiple rollers 53, which increases the flexibility of the receiving mechanism 5.

[0027] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A grinding and sieving mechanism for powder coating production, characterized in that: The system includes a mounting frame (1), which is provided with a main processing mechanism (2) and a screening mechanism (3) from top to bottom. The discharge end of the main processing mechanism (2) is connected to the feed end of the screening mechanism (3). The screening mechanism (3) is provided with a first discharge pipe (31) and a second discharge pipe (32). The first discharge pipe (31) is connected to an auxiliary discharge mechanism (4). The auxiliary discharge mechanism (4) is connected to a receiving mechanism (5). The second discharge pipe (32) is used to connect to an auxiliary grinding mechanism. The auxiliary discharge mechanism (4) includes an auxiliary frame (41) and a cover (42). One end of the auxiliary frame (41) is threaded to the first discharge pipe (31), and the other end is inserted into the receiving mechanism (5). The cover (42) is sleeved on the auxiliary frame (41).

2. The grinding and sieving mechanism for powder coating production according to claim 1, characterized in that: The auxiliary frame (41) includes an upper sleeve (411), multiple support bars (412) and a lower sleeve (413). The upper sleeve (411) and the lower sleeve (413) are connected by multiple support bars (412), and gaps are formed between the multiple support bars (412). The upper sleeve (411) is threadedly connected to the first discharge pipe (31).

3. The grinding and sieving mechanism for powder coating production according to claim 2, characterized in that: The outer side of the upper sleeve (411) has an upper recess (411a), and the outer side of the lower sleeve (413) has a lower recess (413a). The cover (42) is provided with an upper drawstring (421) and a lower drawstring (422). The upper drawstring (421) is sleeved on the upper recess (411a), and the lower drawstring (422) is sleeved on the lower recess (413a).

4. The grinding and sieving mechanism for powder coating production according to claim 3, characterized in that: The receiving mechanism (5) includes a receiving box (51) and a box cover (52) movably connected to the receiving box (51). The box cover (52) has a receiving port (521) that matches the lower sleeve (413). The lower sleeve (413) passes through the receiving port (521). The bottom of the box is provided with multiple rollers (53).

5. The grinding and sieving mechanism for powder coating production according to claim 1, characterized in that: The grinding mechanism includes a processing body (21) and a feed pipe (22) and a suction motor (23) connected to the processing body (21). The feed pipe (22) is provided with a flange connecting sleeve (24) for connecting to an auxiliary grinding mechanism through the flange connecting sleeve (24).

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