Quantitative feeding device for powder additive

Abstract

The utility model relates to the technical field of molding powder production, and discloses a powder additive quantitative feeding device which comprises a box body, and the box body comprises a material storage box and a control box which are arranged in a separated mode. A servo discharging mechanism is arranged at the bottom of the storage box; a quantitative feeding mechanism and an atomizing mechanism are arranged in the control box; the quantitative feeding mechanism comprises a feeding pipe, the feeding pipe is sleeved with a first inserting piece and a second inserting piece, a quantitative feeding bin is defined by the first inserting piece, the second inserting piece and the feeding pipe, and a high-pressure air hole is formed in one side wall of the quantitative feeding bin. A touch screen is arranged on the control box and electrically connected with a controller. By arranging the quantitative feeding bin, quantitative feeding can be achieved, and accurate feeding is achieved; by arranging the atomizing mechanism, the sprayed powder can be atomized and dispersed, so that the powder coating can be mixed more uniformly, and the quality is more stable; and the feeding frequency can be adjusted through the touch screen.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic powder production, in particular to a powder additive quantitative feeding device. Background Art

[0002] With the increasingly wide demand for electrostatic spraying coatings in the market and the increasingly high quality requirements for coatings, in order to meet different requirements of customers, powder manufacturers will continuously adjust production formulas and add different additives to improve product performance, that is, uniformly add additives to powder coatings through mechanical devices during the production process. The general principle of the existing additive feeding device is to extrude the additive into a small container through a screw extruder, and then the additive in the small container is sent to the corresponding powder grinding equipment or mixing device through high-pressure gas. The existing additive feeding device cannot feed accurately, resulting in uneven mixing and affecting the quality stability of powder coatings. Content of the Utility Model

[0003] The purpose of the utility model is to provide a powder additive quantitative feeding device, which can realize quantitative feeding through the setting of a quantitative feeding bin and achieve accurate feeding; through the setting of an atomizing mechanism, the sprayed powder can be atomized and dispersed, making the powder coating mixing more uniform and the quality more stable.

[0004] The above technical purpose of the utility model is achieved through the following technical solutions:

[0005] A powder additive quantitative feeding device includes a box body, and the box body includes a storage box and a control box which are separated and arranged;

[0006] A servo discharging mechanism is arranged at the bottom of the storage box;

[0007] A quantitative feeding mechanism and an atomizing mechanism are arranged in the control box;

[0008] The quantitative feeding mechanism includes a feeding pipe, on which a first insert piece and a second insert piece are sleeved. The first insert piece, the second insert piece and the feeding pipe enclose a quantitative feeding bin, and a high-pressure air hole is formed on one side wall of the quantitative feeding bin. A touch screen is arranged on the control box, and the touch screen is electrically connected to a controller.

[0009] Through the above technical solution, the additives in the storage bin are conveyed to the metering feeding mechanism through the servo discharging mechanism. The additives enter the first inserting piece and are blocked by the first inserting piece. As the additives gradually increase, the additives inside the first inserting piece are slowly filled up. Then, the second inserting piece is inserted upward into the feeding pipe to form a metering feeding bin. Since the volume of the metering feeding bin is certain, the amount of additives in the metering feeding bin also forms a fixed quantity. Then, the first inserting piece moves downward, and the high-pressure air hole is connected to high-pressure gas to blow high-pressure gas to the additives in the metering feeding bin. The high-pressure gas blows the additives in the metering feeding bin towards the atomizing mechanism for atomization.

[0010] The present utility model is further arranged as follows: The metering feeding mechanism further includes a feeding base fixed in the control box, and a squeezing bin is formed in the middle of the feeding base;

[0011] Two feeding pipes are symmetrically arranged, and the inner ends of the two feeding pipes extend into the squeezing bin;

[0012] One second atomizing cavity is formed at each end of the feeding base, and a second sealing cover is fixed at the outer end of the second atomizing cavity; The feeding pipe passes through the outer extending end of the second sealing cover and is connected with a first conduit;

[0013] The atomizing mechanism includes an atomizing part fixed in the control box, and one first atomizing cavity is arranged at each end of the atomizing part, and a first sealing cover is fixed at the outer end of the first atomizing cavity; A material passing pipe is arranged on the first sealing cover, and the other end of the first conduit is communicated with the material passing pipe;

[0014] The first atomizing cavity and the second atomizing cavity on the same side are communicated through a second conduit. The outlet ends of the two second atomizing cavities are respectively connected with two ends of a Y-shaped conduit. The third end of the Y-shaped conduit is connected with a conversion part, and the conversion part is connected with a powder outlet pipe.

[0015] Through the above technical solution, the additives in the metering feeding bin flow out from the outer end of the feeding pipe under the action of high-pressure gas and enter the first conduit, and then enter the first atomizing cavity through the material passing pipe. Since the volume becomes larger when entering the first atomizing cavity from the material passing pipe, the additives entering the first atomizing cavity can be further dispersed to achieve atomization; Then, the additives in the first atomizing cavity enter the second atomizing cavity through the second conduit and can be further dispersed. Finally, the additives in the second atomizing cavity flow out through the Y-shaped conduit and enter the powder outlet pipe through the conversion part. The powder outlet pipe sends the additives into the corresponding mixing device, thus completing metering transportation.

[0016] The present utility model is further arranged as follows: A feeding hole communicated with the squeezing bin is formed on the feeding base;

[0017] The servo discharging mechanism includes a hopper fixed inside the storage bin. A spiral discharging rod is provided at the bottom of the hopper. One end of the spiral discharging rod is connected to a servo motor that drives it to rotate, and the other end of the spiral discharging rod extends into the feed inlet. The servo motor is electrically connected to the controller.

[0018] Through the above technical solution, the controller can control the rotation frequency of the servo motor, and then cooperate with the movement of the first insert piece and the second insert piece to adjust the frequency of quantitative discharging.

[0019] The auxiliary agent is stored in the hopper. The servo motor drives the spiral discharging rod to rotate, and the spiral discharging rod sends the auxiliary agent into the extrusion bin. Then, the auxiliary agent in the extrusion bin is divided into two paths and enters the feeding pipe.

[0020] The present utility model is further configured as: the outer ends of the two first insert pieces are fixed to one end of a first push rod, and the first push rod is fixed to the cylinder block of a first cylinder.

[0021] The outer ends of the two second insert pieces are fixed to a second push rod, and the second push rod is fixed to the cylinder block of a second cylinder.

[0022] The piston rod of the first cylinder and the piston rod of the second cylinder are fixed to the feeding base. The controller controls the first cylinder and the second cylinder, and the first push rod and the second push rod are arranged staggeredly.

[0023] Through the above technical solution, when the piston rod of the first cylinder extends, it drives the first push rod to move downward, and the first push rod drives the first insert piece to move downward. Conversely, it can drive the second insert piece to move upward and reset.

[0024] Similarly, the second cylinder can drive the second insert piece to move downward or upward and reset through the second push rod.

[0025] The present utility model is further configured as: a valve plate is provided at the inner end of the material passing pipe. The upper end of the valve plate is rotatably connected to a support, and the support is fixed to the first sealing cover. The valve plate can act as a check valve and can effectively prevent powder from flowing back.

[0026] The present utility model is further configured as: a high-pressure air chamber is formed in the middle of the atomizing part. Small holes communicating with the corresponding first atomizing chambers are formed on both side walls of the high-pressure air chamber. The high-pressure air chamber is connected to a first air inlet pipe, and a first solenoid valve is provided on the first air inlet pipe; the high-pressure air hole is connected to a second air inlet pipe, and a second solenoid valve is provided on the second air inlet pipe. The first solenoid valve and the second solenoid valve are both electrically connected to the controller.

[0027] By controlling the air intake frequencies of the first air inlet pipe and the second air inlet pipe through the first solenoid valve and the second solenoid valve, it can cooperate with the work of the servo motor, the first cylinder, and the second cylinder to achieve quantitative feeding at a certain frequency.

[0028] The outstanding effects of the present utility model are as follows:

[0029] Compared with the prior art, by setting up a quantitative feeding bin, quantitative feeding can be achieved, realizing precise feeding; by setting up an atomizing mechanism, the sprayed powder can be atomized and dispersed, making the powder coating mix more evenly and the quality more stable;

[0030] The feeding frequency can be adjusted through the touch screen and the servo feeding mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 is a top view of the present utility model;

[0032] Figure 2 is a front view of the present utility model;

[0033] Figure 3 is Figure 2 a partial enlarged view of A;

[0034] Figure 4 is Figure 3 a sectional view taken along B-B;

[0035] Figure 5 is Figure 2 a partial enlarged view of C;

[0036] Figure 6 is a flow chart of the auxiliary agent when the present utility model is working.

[0037] Reference numerals: 10, box body; 101, storage bin; 102, control box; 103, touch screen;

[0038] 20, servo discharging mechanism; 201, hopper; 202, spiral discharging rod; 203, servo motor;

[0039] 30, quantitative feeding mechanism; 300, quantitative feeding bin; 301, feeding pipe; 302, first insert piece; 303, second insert piece; 304, high-pressure air hole; 305, feeding base; 306, extrusion bin; 307, second atomizing cavity; 308, second sealing cover; 309, first conduit; 310, feeding hole; 311, first push-pull rod; 312, first cylinder; 313, second push-pull rod; 314, second cylinder;

[0040] 40, atomizing mechanism; 401, atomizing part; 402, first atomizing cavity; 403, first sealing cover; 404, material passing pipe; 406, Y-shaped conduit; 407, conversion part; 408, powder discharging pipe; 409, valve plate; 410, support; 411, high-pressure air cavity; 412, small hole; 413, first air inlet pipe; 414, second air inlet pipe. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0041] The following will further describe in detail the specific implementation manners of the present utility model in conjunction with the accompanying drawings and embodiments. The following embodiments are used to illustrate the present utility model, but not to limit the scope of the present utility model.

[0042] The following is a reference to Figures 1 to 6 describe the present utility model:

[0043] A powder additive metering feeding device includes a box body 10, and the box body 10 includes a storage box 101 and a control box 102 which are arranged separately;

[0044] A servo discharging mechanism 20 is provided at the bottom of the storage box 101;

[0045] A metering feeding mechanism 30 and an atomizing mechanism 40 are provided in the control box 102;

[0046] The metering feeding mechanism 30 includes a feeding pipe 301, a first insert piece 302 and a second insert piece 303 are sleeved on the feeding pipe 301, and the first insert piece 302, the second insert piece 303 and the feeding pipe 301 enclose a metering feeding bin 300. A high-pressure air hole 304 is formed on one side wall of the metering feeding bin 300. A touch screen 103 is provided on the control box 102, and the touch screen is electrically connected to a controller.

[0047] The additive in the storage box is conveyed to the metering feeding mechanism through the servo discharging mechanism. When the additive enters the position of the first insert piece, it is blocked by the first insert piece. As the additive gradually increases, the additive inside the first insert piece is slowly filled. Then the second insert piece is inserted upward into the feeding pipe to form a metering feeding bin. Since the volume of the metering feeding bin is certain, the amount of the additive in the metering feeding bin also forms a fixed quantity. Then the first insert piece moves downward, and the high-pressure air hole is connected to high-pressure gas to blow high-pressure gas to the additive in the metering feeding bin. The high-pressure gas blows the additive in the metering feeding bin to the atomizing mechanism for atomization.

[0048] The metering feeding mechanism 30 further includes a feeding base 305 fixed in the control box 102, and an extrusion bin 306 is formed in the middle of the feeding base 305;

[0049] Two feeding pipes 301 are symmetrically arranged, and the inner ends of the two feeding pipes 301 extend into the extrusion bin 306;

[0050] One second atomizing cavity 307 is formed at each end of the feeding base 305, and a second sealing cover 308 is fixed at the outer end of the second atomizing cavity 307; the feeding pipe 301 passes through the outer extending end of the second sealing cover 308 and is connected to a first conduit 309;

[0051] The atomizing mechanism 40 includes an atomizing part 401 fixed in the control box 102. A first atomizing chamber 402 is provided at each end of the atomizing part 401, and a first sealing cover 403 is fixed at the outer end of the first atomizing chamber 402. A material feeding pipe 404 is provided on the first sealing cover 403, and the other end of the first conduit 309 is communicated with the material feeding pipe 404.

[0052] The first atomizing chamber 402 and the second atomizing chamber 307 on the same side are communicated through a second conduit 405. The outlet ends of the two second atomizing chambers 307 are respectively connected to two ends of a Y-shaped conduit 406. A conversion part 407 is connected to the third end of the Y-shaped conduit 406, and a powder discharging pipe 408 is connected to the conversion part 407.

[0053] The auxiliary agent in the quantitative feeding bin flows out from the outer end of the feeding pipe under the action of high-pressure gas and enters the first conduit, and then enters the first atomizing chamber through the material feeding pipe. Since the volume becomes larger when entering the first atomizing chamber from the material feeding pipe, the auxiliary agent entering the first atomizing chamber can be further dispersed and atomized. Then the auxiliary agent in the first atomizing chamber enters the second atomizing chamber through the second conduit and can be further dispersed. Finally, the auxiliary agent in the second atomizing chamber flows out through the Y-shaped conduit and enters the powder discharging pipe through the conversion part, and the powder discharging pipe sends the auxiliary agent into the corresponding mixing device, thus completing the quantitative conveying.

[0054] A feeding hole 310 communicating with the extrusion bin 306 is formed on the feeding base 305.

[0055] The servo discharging mechanism 20 includes a hopper 201 fixed in the storage tank 101. A spiral discharging rod 202 is provided at the bottom of the hopper 201. One end of the spiral discharging rod 202 is connected with a servo motor 203 driving it to rotate, and the other end of the spiral discharging rod 202 extends into the feeding hole 310. The servo motor is electrically connected to the controller.

[0056] The controller can control the rotation frequency of the servo motor, and then cooperate with the movement of the first insert piece and the second insert piece to adjust the quantitative discharging frequency.

[0057] The auxiliary agent is stored in the hopper. The servo motor drives the spiral discharging rod to rotate, and the spiral discharging rod sends the auxiliary agent into the extrusion bin. Then the auxiliary agent in the extrusion bin is divided into two paths and enters the feeding pipe.

[0058] The outer ends of the two first insert pieces 302 are fixed at one end of a first push rod 311, and the first push rod 311 is fixed on the cylinder block of a first cylinder 312.

[0059] The outer ends of the two second insert pieces 303 are fixed on a second push rod 313, and the second push rod 313 is fixed on the cylinder block of a second cylinder 314.

[0060] The piston rods of the first cylinder 312 and the second cylinder 314 are fixed on the feeding base 305. The controller controls the first cylinder and the second cylinder, and the first push-pull rod and the second push-pull rod are arranged staggeredly.

[0061] When the piston rod of the first cylinder extends, it drives the first push-pull rod to move downward, and the first push-pull rod drives the first insertion piece to move downward. Conversely, it can drive the second insertion piece to move upward and reset.

[0062] Similarly, the second cylinder can drive the second insertion piece to move downward or upward and reset through the second push-pull rod.

[0063] A valve plate 409 is provided at the inner end of the material passing pipe 404. The upper end of the valve plate 409 is rotatably connected to a support 410, and the support 410 is fixed on the first sealing cover 403. The valve plate can act as a check valve and can effectively prevent the powder from flowing back.

[0064] A high-pressure air chamber 411 is formed in the middle of the atomizing part 401. Small holes 412 communicating with the corresponding first atomizing chambers 402 are formed on both side walls of the high-pressure air chamber 411. The high-pressure air chamber 411 is connected with a first air inlet pipe 413, and a first electromagnetic valve is provided on the first air inlet pipe; the high-pressure air hole 304 is connected with a second air inlet pipe 414, and a second electromagnetic valve is provided on the second air inlet pipe 414. The first electromagnetic valve and the second electromagnetic valve are both electrically connected to the controller.

[0065] By controlling the intake frequencies of the first air inlet pipe and the second air inlet pipe through the first electromagnetic valve and the second electromagnetic valve, it can cooperate with the operation of the servo motor, the first cylinder, and the second cylinder to achieve quantitative feeding at a certain frequency.

[0066] The above are only the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the technical principle of the present invention, several improvements and modifications can be made. These improvements and modifications made above should also be regarded as the protection scope of the present invention.

Claims

1. A quantitative feeding device for powder additives, comprising a box (10), characterized in that: The box body (10) comprises a material storage box (101) and a control box (102) which are arranged separately; A servo discharging mechanism (20) is provided at the bottom of the material storage box (101); The control box (102) is provided with a quantitative feeding mechanism (30) and an atomization mechanism (40); The quantitative feeding mechanism (30) comprises a feeding pipe (301), a first plug-in sheet (302) and a second plug-in sheet (303) are sleeved on the feeding pipe (301), the first plug-in sheet (302), the second plug-in sheet (303) and the feeding pipe (301) together form a quantitative feeding bin (300), and a high-pressure air hole (304) is formed on one side wall of the quantitative feeding bin (300).

2. A powder additive quantitative feeding device according to claim 1, characterized in that: The quantitative feeding mechanism (30) further comprises a feeding base (305) fixed in the control box (102), and a material squeezing bin (306) is formed in the middle of the feeding base (305); Two feeding pipes (301) are symmetrically arranged, and the inner ends of the two feeding pipes (301) extend into the extrusion bin (306); A second atomizing chamber (307) is formed at each end of the feeding base (305), and a second sealing cover (308) is fixed to the outer end of the second atomizing chamber (307); the outer protruding end of the feeding tube (301) passing through the second sealing cover (308) is connected to a first conduit (309); The atomizing mechanism (40) comprises an atomizing portion (401) fixed in a control box (102); a first atomizing chamber (402) is respectively provided at both ends of the atomizing portion (401); a first sealing cover (403) is fixed at the outer end of the first atomizing chamber (402); a material passage pipe (404) is provided on the first sealing cover (403); and the other end of the first conduit (309) is communicated with the material passage pipe (404); The first atomization chamber (402) and the second atomization chamber (307) on the same side are connected via a second conduit (405); the outlet ends of the two second atomization chambers (307) are respectively connected to two ends of a Y-shaped conduit (406); the third end of the Y-shaped conduit (406) is connected to a conversion portion (407); and the conversion portion (407) is connected to a powder outlet pipe (408).

3. A powder additive quantitative feeding device according to claim 2, characterized in that: The feeding base (305) is formed with a feeding hole (310) which is in communication with the extrusion bin (306); The servo discharging mechanism (20) comprises a hopper (201) fixed in a material storage box (101), a spiral discharging rod (202) being provided at the bottom of the hopper (201), one end of the spiral discharging rod (202) being connected to a servo motor (203) for driving the spiral discharging rod (202) to rotate, and the other end of the spiral discharging rod (202) extending into a feeding hole (310).

4. A powder additive quantitative feeding device according to claim 2, characterized in that: The outer ends of the two first inserts (302) are fixed to one end of a first push-pull rod (311), and the first push-pull rod (311) is fixed to a cylinder body of a first cylinder (312); The outer ends of the two second inserts (303) are fixed on the second push-pull rod (313), and the second push-pull rod (313) is fixed on the cylinder body of the second cylinder (314); The piston rod of the first cylinder (312) and the piston rod of the second cylinder (314) are fixed on the feeding base (305).

5. A powder additive quantitative feeding device according to claim 2, characterized in that: A valve plate (409) is provided at the inner end of the feed pipe (404), and the upper end of the valve plate (409) is rotatably connected to a support (410), and the support (410) is fixed on the first sealing cover (403).

6. A powder additive quantitative feeding device according to claim 2, characterized in that: A high-pressure air cavity (411) is formed in the middle of the atomization portion (401), and small holes (412) communicating with the corresponding first atomization cavity (402) are formed on both side walls of the high-pressure air cavity (411).

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