Coarse powder recovery device for metal powder coating

Abstract

The utility model relates to the technical field of coarse powder recovery, and discloses a metal powder coating coarse powder recovery device which comprises a screening box. An air cylinder is installed at the top of the screening box, a rod type piston piece which penetrates through the bottom in a sliding mode and stretches into the screening box is arranged in the air cylinder, a V-shaped screen which is located in the screening box and arranged in an inverted mode is installed at the bottom end of the rod type piston piece, and the interior of the screening box is divided into a screening cavity and a discharging cavity through the V-shaped screen. The screening box is provided with a driving piece used for driving the rod type piston piece to move in the air cylinder in a reciprocating mode and driving the V-shaped screen to shake up and down. The top of the screening cavity is provided with an air blowing piece which is arranged on the rod type piston piece in a sleeving mode and communicates with the air cylinder. The utility model provides a metal powder coating coarse powder recovery device which solves the problems that when raw materials are screened, a screen is prone to being blocked, and coarse powder raw materials are inconvenient to recover.

Description

Technical Field

[0001] The utility model relates to the technical field of coarse powder recovery, in particular to a coarse powder recovery device for metal powder coatings. Background Art

[0002] In the production process of metal powder coatings, it is usually necessary to crush the raw materials in order to obtain the required powder form in the subsequent process steps. The crushing process is usually completed by a mill, which can crush the raw materials into the required powder size range. However, when producing large quantities of products, the mill may produce a large amount of coarse materials, which are mixed with fine particles. When the powder is used for coatings, it will cause surface bulges and produce larger particles, thereby affecting the quality and surface smoothness of the coating. It is usually necessary to use a screening machine to screen the powder produced by the mill to separate the coarse powder for recycling for subsequent grinding and reuse, thereby improving the utilization rate of raw materials and product quality;

[0003] As the working time of the screening machine increases, coarse powder tends to accumulate on the screen, causing the screen to be blocked, reducing the screening efficiency, and the coarse powder cannot be effectively separated and recovered.

[0004] In order to solve the above problems, the present application proposes a coarse powder recovery device for metal powder coatings. Utility Model Content

[0005] Based on the technical problems existing in the background technology, the utility model proposes a coarse powder recovery device for metal powder coatings.

[0006] The utility model provides a coarse powder recovery device for metal powder coating, comprising a screening box;

[0007] An air cylinder is installed on the top of the screening box, and a rod-type piston member is arranged in the air cylinder, which slides through the bottom and extends into the screening box. A V-shaped screen located in the screening box and arranged inverted is installed at the bottom of the rod-type piston member, and the V-shaped screen divides the screening box into a screening chamber and a discharge chamber. A driving member for driving the rod-type piston member to reciprocate in the air cylinder and drive the V-shaped screen to shake up and down is installed on the screening box;

[0008] The top of the screening chamber is provided with an air blowing member which is sleeved on the rod-type piston member and connected to the air cylinder, and the air blowing member is used to blow air to the V-shaped screen;

[0009] Recovery components communicating with the screening chamber are installed on both sides of the screening box.

[0010] Preferably, the rod-type piston member includes a piston body and a connecting rod, the piston body is slidably arranged in the air cylinder and driven to reciprocate by a driving member, the connecting rod is installed at the bottom of the piston body, the bottom end of the connecting rod slides through the bottom of the air cylinder and extends into the screening box, and the V-shaped screen is installed at the bottom end of the connecting rod.

[0011] Preferably, the driving member includes an assembly block, which is installed on the top of the screening box, and a turntable and a servo motor for driving the turntable to rotate are installed on the assembly block. The side of the turntable is rotatably connected to a movable rod which is eccentrically arranged and located above the air cylinder, and the bottom end of the movable rod is rotatably sleeved with a U-shaped block, and a push rod is installed at the bottom of the U-shaped block, and the bottom end of the push rod slides through the top of the air cylinder, and the piston body is installed at the bottom end of the push rod.

[0012] Preferably, the air blowing part includes an annular tube, which is installed on the top of the screening chamber and sleeved on the connecting rod. The annular tube is connected to a conducting tube connected to the bottom of the air cylinder, and the two ends of the conducting tube are respectively connected to the annular tube and the air cylinder. The bottom of the annular tube is connected to a plurality of air nozzles arranged toward the V-shaped screen.

[0013] Preferably, the recovery member comprises a recovery pipe, two of the recovery pipes are respectively connected to the two sides of the screening box and are arranged to be tilted downward, the two recovery pipes are both connected to the screening chamber, and the bottom ends of the two recovery pipes are both connected to the recovery box.

[0014] Preferably, a feed hopper connected to the screening chamber is installed on the top of the screening box, a discharge pipe connected to the discharge chamber is connected to the bottom of the screening box, and a control valve is installed on the discharge pipe.

[0015] The above technical solution of the utility model has the following beneficial technical effects:

[0016] Through the provision of the gas cylinder, rod-type piston component, V-shaped screen, driving component and air-blowing component, when the raw material enters the screening chamber for screening, the driving component can drive the rod-type piston component to reciprocate in the gas cylinder, and drive the V-shaped screen at the bottom end of the rod-type piston component to shake up and down, so that the raw material can be screened through the V-shaped screen, the fine powder raw material enters the discharge chamber, and the coarse powder raw material enters the recovery component for recovery; when the rod-type piston component reciprocates in the gas cylinder, the gas can be introduced into the air-blowing component, and the V-shaped screen is blown through the air-blowing component to blow away the raw material stuck on the V-shaped screen; this structure can effectively prevent the raw material from clogging the V-shaped screen during screening by shaking and blowing the V-shaped screen, and can ensure that the coarse powder raw material can be separated and recovered. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The utility model is a schematic structural diagram of a coarse powder recovery device for metal powder coatings.

[0018] Figure 2 For this utility model Figure 1 Schematic diagram of the local structure in.

[0019] Figure numerals: 1. Screening box; 2. Air cylinder; 3. Rod-type piston member; 31. Piston body; 32. Connecting rod; 4. V-shaped screen; 5. Driving member; 51. Assembly block; 52. Turntable; 53. Servo motor; 54. Movable rod; 55. U-shaped block; 56. Push rod; 6. Air blowing member; 61. Ring tube; 62. Conducting tube; 63. Air nozzle; 7. Recovery member; 71. Recovery tube; 72. Recovery box; 8. Feed hopper; 9. Discharge pipe. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model is further described in detail below in combination with specific implementation methods and with reference to the accompanying drawings. It should be understood that these descriptions are only exemplary and are not intended to limit the scope of the utility model. In addition, in the following description, the description of well-known structures and technologies is omitted to avoid unnecessary confusion of the concept of the utility model.

[0021] like Figure 1 and Figure 2 As shown, the utility model proposes a coarse powder recovery device for metal powder coating, comprising a screening box 1;

[0022] In this embodiment, a gas cylinder 2 is installed on the top of the screening box 1, and a rod-type piston member 3 is provided in the gas cylinder 2, which slides through the bottom and extends into the screening box 1. A V-shaped screen 4 is installed at the bottom end of the rod-type piston member 3, which is located in the screening box 1 and is inverted. The V-shaped screen 4 divides the screening box 1 into a screening chamber and a discharge chamber. A driving member 5 for driving the rod-type piston member 3 to reciprocate in the gas cylinder 2 and drive the V-shaped screen 4 to shake up and down is installed on the screening box 1. The rod-type piston member 3 includes a piston body 31 and a connecting rod 32. The piston body 31 is slidably arranged in the gas cylinder 2 and driven to reciprocate by the driving member 5. The connecting rod 32 is installed at the bottom of the piston body 31. The bottom end of the connecting rod 32 slides through the bottom of the gas cylinder 2 and extends into the screening box 1. The V-shaped screen 4 is installed at the bottom end of the connecting rod 32. The driving member 5 includes an assembly block 51, which is installed on the top of the screening box 1. A turntable 52 and a servo motor 53 for driving the turntable 52 to rotate are installed on the assembly block 51. The side of the turntable 52 is rotatably connected to a movable rod 54 that is eccentrically set and located above the air cylinder 2. The bottom end of the movable rod 54 is rotatably sleeved with a U-shaped block 55. A push rod 56 is installed at the bottom of the U-shaped block 55. The bottom end of the push rod 56 slides through the top of the air cylinder 2, and the piston body 31 is installed at the bottom of the push rod 56.

[0023] In this embodiment, an air blowing member 6 is mounted on the top of the screening chamber and is sleeved on the rod-type piston member 3 and connected to the air cylinder 2, and the air blowing member 6 is used to blow air to the V-shaped screen 4. The air blowing member 6 includes an annular tube 61, which is mounted on the top of the screening chamber and sleeved on the connecting rod 32. The annular tube 61 is connected to a conducting tube 62 connected to the bottom of the air cylinder 2, and the two ends of the conducting tube 62 are respectively connected to the annular tube 61 and the air cylinder 2, and the bottom of the annular tube 61 is connected to a plurality of air nozzles 63 arranged toward the V-shaped screen 4.

[0024] In this embodiment, a recovery member 7 connected to the screening chamber is installed on both sides of the screening box 1. The recovery member 7 includes a recovery pipe 71, two recovery pipes 71 are respectively connected to both sides of the screening box 1 and are arranged to be tilted downward, the two recovery pipes 71 are connected to the screening chamber, and the bottom ends of the two recovery pipes 71 are connected to a recovery box 72.

[0025] In a specific embodiment, a feed hopper 8 communicating with the screening chamber is installed on the top of the screening box 1 .

[0026] It should be noted that: when in use, the raw materials to be screened can be poured into the feed hopper 8, so that they enter the screening chamber along the feed hopper 8, and then the turntable 52 can be driven by the servo motor 53 to drive the movable rod 54 to rotate in a circumferential direction, and the bottom end of the movable rod 54 reciprocates in the U-shaped block 55, and the piston body 31 is driven to reciprocate in the air cylinder 2 through the push rod 56, and the connecting rod 32 connected to the piston body 31 drives the V-shaped screen 4 to shake up and down, so that the raw materials can be screened through the V-shaped screen 4, and the fine powder raw materials can be screened. The material enters the discharge chamber, and the coarse powder raw material enters the recovery box 72 along the recovery pipe 71 for recovery. When the piston body 31 moves back and forth in the gas cylinder 2, the gas can be continuously introduced into the annular tube 61 along the guide tube 62, and then the V-shaped screen 4 is blown through the air nozzle 63 on the annular tube 61 to blow away the raw material stuck on the V-shaped screen 4. This structure can effectively prevent the raw material from clogging the V-shaped screen 4 during screening by shaking and blowing the V-shaped screen 4, thereby ensuring that the coarse powder raw material can be separated and recovered.

[0027] In a specific embodiment, a discharge pipe 9 communicating with the discharge chamber is connected to the bottom of the screening box 1 , and a control valve is installed on the discharge pipe 9 .

[0028] It should be noted that: when in use, the control valve on the discharge pipe 9 can be opened, and then the sieved fine powder can be discharged through the discharge pipe 9.

[0029] It should be understood that the above specific embodiments of the present invention are only used to illustrate or explain the principles of the present invention, and do not constitute a limitation on the present invention. Therefore, any modifications, equivalent substitutions, improvements, etc. made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. In addition, the claims attached to the present invention are intended to cover all changes and modifications that fall within the scope and boundaries of the attached claims, or the equivalent forms of such scope and boundaries.

Claims

1. A coarse powder recovery device for metal powder coatings, comprising a screening box (1), characterized in that: A gas cylinder (2) is installed on the top of the screening box (1), a rod-type piston member (3) is arranged in the gas cylinder (2) and slides through the bottom and extends into the screening box (1), a V-shaped screen (4) is installed at the bottom of the rod-type piston member (3) and is located in the screening box (1) and is arranged inverted, the V-shaped screen (4) divides the screening box (1) into a screening chamber and a discharge chamber, and a driving member (5) is installed on the screening box (1) for driving the rod-type piston member (3) to move back and forth in the gas cylinder (2) and drive the V-shaped screen (4) to shake up and down; An air blowing member (6) sleeved on the rod-type piston member (3) and connected to the air cylinder (2) is installed on the top of the screening chamber, and the air blowing member (6) is used to blow air to the V-shaped screen (4); Recovery components (7) in communication with the screening chamber are installed on both sides of the screening box (1).

2. A metal powder coating coarse powder recovery device according to claim 1, characterized in that: The rod-type piston member (3) comprises a piston body (31) and a connecting rod (32); the piston body (31) is slidably arranged in the air cylinder (2) and is driven to reciprocate by a driving member (5); the connecting rod (32) is installed at the bottom of the piston body (31); the bottom end of the connecting rod (32) slides through the bottom of the air cylinder (2) and extends into the screening box (1); the V-shaped screen (4) is installed at the bottom end of the connecting rod (32).

3. A metal powder coating coarse powder recovery device according to claim 2, characterized in that: The driving member (5) comprises an assembly block (51), wherein the assembly block (51) is mounted on the top of the screening box (1), a turntable (52) and a servo motor (53) for driving the turntable (52) to rotate are mounted on the assembly block (51), a side of the turntable (52) is rotatably connected to a movable rod (54) which is eccentrically arranged and located above the air cylinder (2), a bottom end of the movable rod (54) is rotatably sleeved with a U-shaped block (55), a push rod (56) is mounted at the bottom of the U-shaped block (55), the bottom end of the push rod (56) slides through the top of the air cylinder (2), and the piston body (31) is mounted at the bottom end of the push rod (56).

4. A metal powder coating coarse powder recovery device according to claim 3, characterized in that: The air blowing member (6) comprises an annular tube (61), which is installed at the top of the screening chamber and sleeved on the connecting rod (32); the annular tube (61) is connected to a conducting tube (62) connected to the bottom of the air cylinder (2); and the two ends of the conducting tube (62) are respectively connected to the annular tube (61) and the air cylinder (2); and the bottom of the annular tube (61) is connected to a plurality of air nozzles (63) arranged toward the V-shaped screen (4).

5. A metal powder coating coarse powder recovery device according to claim 4, characterized in that: The recovery member (7) comprises a recovery pipe (71), wherein the two recovery pipes (71) are respectively connected to the two sides of the screening box (1) and are arranged to be tilted downward, the two recovery pipes (71) are both connected to the screening chamber, and the bottom ends of the two recovery pipes (71) are both connected to the recovery box (72).

6. The metal powder coating coarse powder recovery device according to claim 1, characterized in that: A feed hopper (8) communicating with the screening chamber is installed on the top of the screening box (1), a discharge pipe (9) communicating with the discharge chamber is connected to the bottom of the screening box (1), and a control valve is installed on the discharge pipe (9).

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