Powder wrapping and screening machine

Abstract

The utility model discloses a powder wrapping and screening machine which comprises a support, a powder screening assembly arranged on the support, a swing assembly connected with the powder screening assembly and a fixing assembly used for fixing the powder screening assembly and the swing assembly to the support. The support comprises a lower support, the fixing assembly comprises a first fixing plate, the bottom of the first fixing plate is fixed to the lower support, the swing assembly comprises a motor, a Y-shaped connecting rod and a crank disc, an output shaft of the motor penetrates through a reinforcing plate and then is fixed in a center hole of the crank disc, a connecting shaft is further arranged on the crank disc, and a bearing is arranged on the connecting shaft in a sleeving mode. The bearing is sleeved with an annular sliding piece, the annular sliding piece comprises a sliding groove, the Y-shaped connecting rod comprises a sliding rail arranged at the first end, the sliding groove is connected with the sliding rail in a sliding mode, the swing assembly in the powder wrapping and screening machine is simple in structure, the swing efficiency of the swing assembly is high, and therefore the powder screening efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of powder coating and sieving equipment, specifically to a powder coating and sieving machine. Background Technology

[0002] A food coating machine is a piece of equipment used in food processing. It is mainly used to coat the surface of food evenly with powdery substances to meet different cooking needs. It is commonly used in the fast food industry, baking industry, meat processing industry, seafood processing industry, and vegetable processing industry.

[0003] To ensure the breading adheres better to the food, it's generally necessary to soak the food in water or batter to keep it moist before placing it in the breading tray and coating it. While this process helps the breading adhere better, some of the moisture from the food seeps into the breading, causing some of the breading to become wet and clump together, making it difficult to coat further. If all the remaining breading in the tray is poured out and replaced with fresh breading, the dry breading that hasn't come into contact with water and clumped is wasted.

[0004] To overcome the above-mentioned technical defects, Chinese patent CN214047535U discloses a food coating station that can separate dry powder from wet powder in the coating tray, so that the dry powder can be reused and the coating powder is saved. However, the drive mechanism in the coating station has a complex structure, is inconvenient to maintain, and is inefficient, resulting in low efficiency of the coating station in sifting powder. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model proposes a powder coating and sieving machine. The oscillating component in the powder coating and sieving machine has a simple structure, is easy to maintain, and has high oscillation efficiency, which can improve the efficiency of powder sieving.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0007] A powder coating and sieving machine includes a support frame, a powder sieving assembly mounted on the support frame, a swing assembly connected to the powder sieving assembly, and a fixing assembly for fixing the powder sieving assembly and the swing assembly to the support frame. The support frame has a mounting groove on its platform, in which a powder coating basin is detachably mounted. The bottom of the powder coating basin has a through hole, and a valve assembly for opening or closing the through hole is installed at the through hole. The support frame includes a lower support frame. The fixing assembly includes a first fixing plate, the bottom of which is fixed to the lower support frame. The swing assembly includes a motor, a Y-shaped connecting rod, a crank disc, and a connecting member. The output shaft of the motor passes through a reinforcing plate and is then fixed in the center hole of the crank disc. A connecting shaft is also provided on the crank disc, and a bearing is sleeved on the connecting shaft. An annular sliding member is sleeved on the bearing, and the annular sliding member includes a sliding groove. The Y-shaped connecting rod includes a sliding rail at its first end, and the sliding groove is slidably connected to the sliding rail.

[0008] The powder screening assembly includes a powder screening container and a drive shaft. The drive shaft is fixed to the upper part of the powder screening container. A connector is fixedly connected to the second end of the Y-shaped connecting rod. The connector is sleeved outside the flange bearing and can rotate in the flange bearing. The flange bearing is fixed to the first fixed plate. One end of the drive shaft is fixed to one end of the connector, and the other end of the drive shaft is rotatably connected to the bracket.

[0009] Preferably, the connector includes a first body and a connector head disposed at one end of the first body. A flange bearing is sleeved on the first body, and a first stamped fixing plate is sleeved on the connector head. The flange bearing is fixed to one side of the first fixing plate, and the first stamped fixing plate is fixed to the other side of the first fixing plate. A notch is provided at the end of the connector head, and a fixing block connected to one end of the drive shaft is fixed in the notch. The other end of the body is fixedly connected to the second end of the Y-shaped connecting rod by a second nut.

[0010] Preferably, the other end of the drive shaft is rotatably connected to the fixing member of the fixing assembly. The powder screening assembly further includes a powder baffle and a slag discharge port. The slag discharge port is located at the lower part of the powder screening container. The powder baffle is longitudinally arranged inside the powder screening container. A channel is left between the bottom of the powder baffle and the bottom of the powder screening container. The powder baffle divides the inner cavity of the powder screening container into a first cavity and a second cavity. The second cavity is located below the through hole. The slag discharge port is adjacent to the first cavity and located away from the powder baffle.

[0011] Preferably, the powder sieving container includes a screen, a first sealing plate and a second sealing plate disposed at both ends of the screen, one end of the drive shaft passes through a hole in the upper part of the first sealing plate, and the other end of the drive shaft passes through a hole in the upper part of the second sealing plate.

[0012] Preferably, a slag discharge port is provided between the bottom of the second sealing plate and the bottom of the screen, the powder baffle is stuck between the drive shaft and the screen, a channel is left between the bottom of the powder baffle and the bottom of the screen, and the powder baffle is positioned close to the second sealing plate.

[0013] Preferably, the powder coating and sieving machine further includes a slag storage box, which is connected to the lower support and is located below the slag discharge port. The outer edge of the slag storage box is slidably connected to the first slide rail on the lower support.

[0014] Compared with the prior art, the present invention has the following advantages:

[0015] The powder coating and sieving machine provided by this utility model uses a swing assembly mainly composed of a motor, a Y-shaped connecting rod, a crank disc, bearings, an annular slide, connecting parts, and flange bearings. It lacks complex transmission mechanisms or excessive connecting parts, resulting in a simple and clear overall structure that is easy to manufacture, install, and maintain. The entire swing assembly has a reasonable and compact layout, occupying little space. The cooperation between the motor, crank disc, Y-shaped connecting rod, connecting parts, flange bearings, and the drive shaft in the powder sieving assembly enables the swinging function of the powder sieving container within a limited space. Furthermore, the cooperation between the crank disc and the annular slide precisely converts the rotational motion of the motor into the up-and-down swinging motion of the Y-shaped connecting rod, resulting in high motion conversion efficiency. In addition, the sliding connection between the slide groove and the slide rail makes the swinging motion of the Y-shaped connecting rod smoother and more stable, reducing jamming and friction during movement, further improving motion efficiency. It can quickly respond to the motor's drive signal, achieving efficient swinging action, thereby improving powder sieving efficiency. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a perspective view of the entire utility model;

[0018] Figure 2 This is a schematic diagram of the powder screening component and the swing component when separated from the support in this utility model;

[0019] Figure 3 This is a schematic diagram showing the separation of the powder screening component and the swing component in this utility model;

[0020] Figure 4 This is an exploded view of the connector and Y-shaped link when they are separated in this utility model;

[0021] Figure 5 This is a perspective view of the powder screening component in this utility model.

[0022] Attached diagram labels: 1. Bracket; 11. Countertop; 12. Flour-coating tray; 13. Lower bracket; 131. Second slide rail; 14. Left side panel; 15. Front panel; 151. Control switch;

[0023] 2. Powder sieving assembly; 21. Powder sieving container; 211. Screen; 212. First sealing plate; 213. Second sealing plate; 214. First cavity; 215. Second cavity; 22. Drive shaft; 221. One end of drive shaft; 2211. Fixing block; 222. The other end of drive shaft; 23. Powder baffle plate; 24. Slag discharge port;

[0024] 3. Swing assembly; 30. First nut; 31. Motor; 311. Output shaft; 32. Y-shaped connecting rod; 321. First end; 322. Slide rail; 3221. Upper slide rail; 3222. Lower slide rail; 323. Second end; 324. Limiting plate; 33. Crank disc; 331. Connecting shaft; 34. Bearing; 35. Annular slide; 351. Slide groove; 352. Second body; 353. First baffle; 354. Second baffle; 36. Connector; 361. Connector head; 3611. Notch; 362. First body; 3621. The other end of the first body; 36211. Locking position; 3622. Stud; 37. Flange bearing; 38. Second nut; 39. Washer;

[0025] 4. Fixing component; 41. First fixing plate; 42. First stamped fixing plate; 43. Fixing element; 431. Recess; 44. Second stamped fixing plate;

[0026] 5. Slag storage box;

[0027] 6. Deep fryer. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," "third," and "fourth," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0030] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0031] See Figures 1 to 5 This utility model discloses a powder coating and sieving machine, including a support 1, a powder sieving component 2 mounted on the support 1, a swinging component 3 connected to the powder sieving component 2, and a fixing component 4 for fixing the powder sieving component 2 and the swinging component 3 to the support 1. The swinging component 3 drives the powder sieving component 2 to swing, thereby sieving the powder. In this embodiment, the support 1 is generally rectangular, but it can also be other shapes. In this embodiment, the bottom of the support 1 is provided with pulleys (not marked in the figure) to facilitate the movement of the powder coating and sieving machine. The support frame 1 has a mounting groove (not marked in the figure) on its platform 11. A powder coating basin 12 is detachably installed in the mounting groove. The powder coating basin 12 is used to hold powder coating. The bottom of the powder coating basin 12 has a through hole (not shown in the figure). A valve assembly that can open or close the through hole is installed at the through hole. Specifically, the valve assembly can be a common ball valve, or the valve assembly can be a movable one, which in this embodiment is a baffle (not shown in the figure). The baffle covers and blocks the through hole. When it is necessary to open the through hole, simply lift the baffle, which is simple and convenient. A receiving basin located below the powder screening assembly 2 is detachably installed on the support frame 1 (the receiving basin and the powder coating basin 12 in this embodiment can be used interchangeably). The receiving basin is used to collect the powder coating obtained by the powder screening assembly 2.

[0032] Specifically, the bracket 1 includes a lower bracket 13, the fixing assembly 4 includes a first fixing plate 41, the bottom of the first fixing plate 41 is fixed to the lower bracket 13, the swing assembly 3 includes a motor 31, a Y-shaped connecting rod 32, a crank disc 33 and a connecting piece 36, the motor 31 is fixed to the first fixing plate 41, the output shaft 311 passes through the first fixing plate 41 and is then fixed in the center hole (not shown in the figure) of the crank disc 33, the crank disc 33 is also provided with a connecting shaft 331, the connecting shaft 331 is sleeved with a bearing 34, and an annular slide 35 is fixedly sleeved on the bearing 34. The Y-shaped connecting rod 32 includes a slide rail 322 and a limiting plate 324 disposed at the first end 321. The slide rail 322 is slidably connected to the slide rail 322. The end of the connecting shaft 331 is provided with a thread, and a first nut 30 is sleeved on the thread. Through the cooperation of the first nut 30 and the thread, the annular slide 35 can be limited on the output shaft 311. When the output shaft 311 of the drive motor 31 rotates, it drives the crank disk 33 to rotate, which in turn drives the slide rail 351 of the annular slide 35 to slide on the slide rail 322, thereby driving the Y-shaped connecting rod 32 to swing up and down.

[0033] The powder screening assembly 2 includes a powder screening container 21 and a drive shaft 22. The drive shaft 22 is fixed to the upper part of the powder screening container 21. The second end 323 of the Y-shaped connecting rod 32 is fixedly connected to a connector 36. The connector 36 is sleeved on the flange bearing 37 and can rotate in the flange bearing 37. The flange bearing 37 is fixed on the first fixed plate 41. One end 221 of the drive shaft 22 is fixed to one end of the connector 36, and the other end 222 of the drive shaft 22 is rotatably connected to the bracket 1. Thus, when the Y-shaped connecting rod 32 swings up and down, it can drive the connector 36 to rotate in the flange bearing 37, thereby driving the drive shaft 22 to rotate, and then driving the powder screening container 21 to swing up and down in the horizontal direction, so as to realize the powder screening of the powder screening container 21.

[0034] In this embodiment, the oscillating assembly 3 used in the powder coating and sieving machine mainly consists of a motor 31, a Y-shaped connecting rod 32, a crank disc 33, a bearing 34, an annular slide 35, a connecting piece 36, and a flange bearing 37. It lacks complex transmission mechanisms or excessive connecting parts, resulting in a simple and clear overall structure that is easy to manufacture, install, and maintain. The entire oscillating assembly has a reasonable and compact layout, occupying little space. The cooperation between the motor 31, crank disc 33, Y-shaped connecting rod 32, connecting piece 36, and flange bearing 37, and the drive shaft 22 in the powder sieving assembly, enables the oscillating function of the powder sieving container 21 within a limited space. This facilitates the miniaturization of the powder coating and sieving machine and allows it to be applied in space-constrained environments. Furthermore, through the cooperation of the crank disc 33 and the annular slide 35, the rotational motion of the motor 31 can be precisely converted into the up-and-down oscillation of the Y-shaped connecting rod 32, resulting in high motion conversion efficiency. In addition, the sliding connection between the slide groove 351 and the slide rail 322 makes the swing of the Y-shaped connecting rod 32 more stable and smooth, reduces the jamming and friction during the movement, further improves the movement efficiency, can quickly respond to the drive signal of the motor, realize efficient swinging action, and thus improve the powder screening efficiency.

[0035] Specifically, the upper and lower parts of the slide groove 351 are engaged with the upper slide rail 3221 and the lower slide rail 3222 of the slide rail 322. This engagement method increases the contact area between the annular slide 35 and the slide rail 322, making the connection tighter and more stable. Furthermore, a limiting plate 324 is provided between the upper slide rail 3221 and the lower slide rail 3222, allowing the annular slide 35 to slide back and forth on the slide rail 322 without detaching from it.

[0036] Specifically, the annular slide 35 includes a second body 352, a first baffle 353 and a second baffle 354 disposed at both ends of the second body 352, and a groove 351 formed between the first baffle 353 and the second baffle 354. Thus, the first baffle 353 and the second baffle 354 can not only restrict the direction of movement, but also provide support for the parts moving in the groove 351 and bear a certain load.

[0037] Specifically, the connector 36 includes a first body 362 and a connector 361 disposed at one end of the first body 362. A flange bearing 37 is sleeved on the first body 362 and can rotate within the flange bearing 37. A first stamped fixing plate 42 is sleeved on the connector 361. The flange bearing 37 is fixed to one side of the first fixing plate 41, and the first stamped fixing plate 42 is fixed to the other side of the first fixing plate 41. A notch 3611 is provided at the end of the connector 361. A fixing block 2211 connected to one end 221 of the drive shaft 22 is fixed in the notch 3611. The other end 3621 of the first body 362 is fixed in the notch 3611. A threaded post 3622 is provided on the side. The threaded post 3622 is fixed to the second end 323 of the Y-shaped connecting rod 32 by the second nut 38. Specifically, the fixing hole 3231 of the second end 323 is locked in the locking position 36211 of the other end 3621 of the first body 362. The threaded post 3622 passes through the limiting ring (not shown in the figure) and the washer 39 in sequence, and is then fixed by the second nut 38. Thus, when the Y-shaped connecting rod 32 swings up and down, it can drive the connecting piece 36 to rotate in the flange bearing 37, thereby driving the drive shaft 22 to rotate, and then driving the powder screening container 21 to swing up and down in the horizontal direction.

[0038] Specifically, one end 221 of the drive shaft 22 is rotatably connected to the fixing member 43. Specifically, one end 221 of the drive shaft 22 is set in the recess 431 of the fixing member 43 and can rotate in the recess 431. The fixing member 43 is fixed to the left side plate 14 by the second stamping fixing plate 44. So when the swing assembly 3 drives the drive shaft 22 to rotate, one end of the drive shaft 22 rotates in the recess 431, thereby driving the powder screening container 21 to swing.

[0039] Specifically, the powder screening assembly also includes a powder baffle plate 23 and a slag discharge port 24. The slag discharge port 24 is located at the lower part of the powder screening container 21, and the powder baffle plate 23 is located inside the powder screening container 21. The bottom of the powder baffle plate 23 and the bottom of the powder screening container 21 have a channel (not shown in the figure). The powder baffle plate 23 divides the inner cavity of the powder screening container 21 into a first cavity 214 and a second cavity 215. The second cavity 215 is located below the through hole, so that the powder baffle plate 23 can prevent the powder coming down from the powder coating basin 12 from entering the first cavity 214. The slag discharge port 24 is located adjacent to the first cavity 214 and away from the powder baffle plate 23.

[0040] During the sieving process, the powder falling through the through hole can be sieved out through the second cavity 215 and enter the powder receiving basin for recycling. During the sieving container 21 swings, large particles of waste will move away from the swing center and then enter the first cavity 214 through the channel, and finally be discharged from the slag discharge port 24, thus achieving the separation of waste.

[0041] Specifically, the powder sieving container 21 includes a screen 211 (the screen in the figure does not show so many mesh holes, but in fact the screen is full of fine mesh holes), a first sealing plate 212 and a second sealing plate 213 disposed at both ends of the screen 211 for sealing both ends of the screen 211, one end 221 of the drive shaft 22 passes through the hole in the upper part of the first sealing plate 212, and the other end 222 of the drive shaft 22 passes through the hole in the upper part of the second sealing plate 213.

[0042] Specifically, a slag discharge port 24 is provided between the bottom of the first sealing plate 212 and the bottom of the screen 211. The powder baffle 23 is stuck between the drive shaft 22 and the powder screening container 21. The bottom of the powder baffle 23 and the bottom of the screen 211 have a channel (not shown in the figure). The powder baffle 23 is set close to the second sealing plate 213, so that the space of the first cavity 214 is smaller than that of the second cavity 215, which is more conducive to the powder falling through the through hole entering the second cavity 215, and the space for powder screening is also larger.

[0043] Specifically, the powder coating and sieving machine also includes a slag storage box 5, which is connected to the lower support 13. The slag storage box 5 is located below the slag discharge port 24, making it easy to enter the slag storage box 5. The outer edge of the slag storage box 5 is slidably connected to the first slide rail (not shown in the figure) on the lower support 13. The outer edge of the slag storage box 5 can be pushed in from the outside along the first slide rail. The slag storage box 5 is very convenient to pick up and put in, and the operation is simple.

[0044] Specifically, a second slide rail 131 is also provided on the lower support 13, and the outer edge of the receiving basin is slidably connected to the second slide rail 131. In this way, during installation, the outer edge of the receiving basin can be pushed into the second slide rail 131 from the outside, making it very convenient to pick up and put in. It is easy to take out the receiving basin and place it in the installation slot to become the powder coating basin 12.

[0045] To facilitate users in frying the coated food, in some embodiments of this utility model, a frying drum 6 for frying food is provided on the countertop 11.

[0046] Specifically, the bracket 1 also includes a front panel 15 on which a control switch 151 is provided. The control switch 151 is electrically connected to the swing assembly 3, thereby controlling the swing of the swing assembly 3.

[0047] It should be noted that the fixing component 4 also includes other parts for fixing the powder screening component 2 and the swing component 3, which can be set as needed, and will not be described in detail here.

[0048] When the powder coating and sieving machine provided in this embodiment is finished, and sieving is required, the through hole of the powder coating plate 12 is opened and the control switch 151 is started. The output shaft 311 of the motor 31 drives the Y-shaped connecting rod 32 to swing up and down, thereby driving the drive shaft 22 to rotate, and then driving the sieving container 22 to swing up and down. The powder is screened out from the second cavity 215 and enters the powder receiving plate for reuse. Large particles of waste enter the first cavity 214 through the channel and finally exit from the slag discharge port 24 into the slag storage box 5.

[0049] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A powder coating and sieving machine, comprising a support (1), a powder sieving assembly (2) disposed on the support (1), a swing assembly (3) connected to the powder sieving assembly (2), and a fixing assembly (4) for fixing the powder sieving assembly (2) and the swing assembly (3) on the support (1), wherein the support (1) has a mounting groove on its table surface (11), a powder coating basin (12) is detachably installed in the mounting groove, the bottom of the powder coating basin (12) has a through hole, and a valve assembly for opening or closing the through hole is installed at the through hole, the support (1) includes a lower support (13), and the fixing assembly (4) includes a first fixing plate (41), the bottom of the first fixing plate (41) being fixed on the lower support (13), characterized in that, The swing assembly (3) includes a motor (31), a Y-shaped connecting rod (32), a crank disc (33), and a connector (36). The output shaft (311) of the motor (31) passes through the first fixing plate (41) and is then fixed in the center hole of the crank disc (33). A connecting shaft (331) is also provided on the crank disc (33). A bearing (34) is sleeved on the connecting shaft (331). An annular slide (35) is sleeved on the bearing (34). The annular slide (35) includes a groove (351). The Y-shaped connecting rod (32) includes a slide rail (322) at the first end. The groove (351) 351) Sliding connection with slide rail (322), the powder screening assembly (2) includes powder screening container (21) and drive shaft (22), the drive shaft (22) is fixed on the upper part of powder screening container (21), the second end of the Y-shaped connecting rod (32) is fixedly connected to a connector (36), the connector (36) is sleeved on the flange bearing (37) and can rotate in the flange bearing (37), the flange bearing (37) is fixed on the first fixed plate (41), one end of the drive shaft (22) is fixed to one end of the connector (36), and the other end of the drive shaft (22) is rotatably connected to the bracket (1).

2. The powder coating and sieving machine according to claim 1, characterized in that, The connector (36) includes a first body (362) and a connector (361) disposed at one end of the first body (362). The first body (362) is fitted with a flange bearing (37) and can rotate in the flange bearing (37). A first stamped fixing plate (42) is fitted on the connector (361). The flange bearing (37) is fixed on one side of the first fixing plate (41), and the first stamped fixing plate (42) is fixed on the other side of the first fixing plate (41). A notch (3611) is provided at the end of the connector (361). One end of the drive shaft (22) is connected and fixed in the notch (3611). The other end of the first body (362) is fixedly connected to the second end of the Y-shaped connecting rod (32) by a second nut (38).

3. The powder coating and sieving machine according to claim 2, characterized in that, The drive shaft (22) is rotatably connected to the fixing member (43) of the fixing assembly (4). The sieving assembly (2) also includes a baffle plate (23) and a slag discharge port (24). The slag discharge port (24) is located at the lower part of the sieving container (21). The baffle plate (23) is longitudinally located inside the sieving container (21). A channel is left between the bottom of the baffle plate (23) and the bottom of the sieving container (21). The baffle plate (23) divides the inner cavity of the sieving container (21) into a first cavity (214) and a second cavity (215). The second cavity (215) is located below the through hole. The slag discharge port (24) is adjacent to the first cavity (214) and located away from the baffle plate (23).

4. The powder coating and sieving machine according to claim 3, characterized in that, The powder sieving container (21) includes a screen (211), a first sealing plate (212) and a second sealing plate (213) disposed at both ends of the screen (211). One end of the drive shaft (22) passes through the hole in the upper part of the first sealing plate (212), and the other end of the drive shaft (22) passes through the hole in the upper part of the second sealing plate (213).

5. The powder coating and sieving machine according to claim 4, characterized in that, A slag discharge port (24) is provided between the bottom of the second sealing plate (213) and the bottom of the screen (211). The powder baffle (23) is stuck between the drive shaft (22) and the screen (211). A channel is left between the bottom of the powder baffle (23) and the bottom of the screen (211). The powder baffle (23) is set close to the second sealing plate (213).

6. The powder coating and sieving machine according to claim 3, characterized in that, It also includes a slag storage box (5), which is connected to the lower support (13). The slag storage box (5) is located below the slag discharge port (24), and the outer edge of the slag storage box (5) is slidably connected to the first slide rail on the lower support (13).

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