Powder feeder

Abstract

The powder feeder comprises a barrel, the upper end of the barrel is a feeding port, the lower end of the barrel is connected with a discharging box, the discharging box is provided with a discharging port, the barrel is provided with a discharging pipe, the tail end of the discharging pipe is connected with a discharging block, the middle of the discharging block is provided with a scraping hole, the lower end surface of the scraping hole is provided with a scraping disc, a plurality of through scraping grooves are arranged on the scraping disc in the axial direction, the scraping disc and the discharging block are movably connected to realize that the powder scraped out from the discharging block through the scraping hole falls into the scraping disc through the scraping grooves and then falls into the discharging box, the servo motor controls the synchronous belt to transmit to the mandrel, the scraping disc is driven to scrape the powder out from the discharging block slot by slot, the powder falls into the discharging box by gravity after being scraped out, each groove of the scraping disc is uniformly scraped, the powder is transported out from the barrel like a measuring cup, the servo motor is adopted to control the uniform speed or automatically adjust the number of revolutions, so that the purpose of precise measurement is achieved, and the powder volume and the powder weight can be accurately measured through calculation.

Description

Technical Field

[0001] This invention relates to the field of powder conveying equipment technology, and specifically to a powder conveyor. Background Technology

[0002] Powder conveyors are frequently used to transport various powder materials, both metallic and non-metallic. However, existing powder conveyors often lack the ability to adjust the amount of powder conveyed and to precisely measure its quantity. Furthermore, they cannot accurately calculate the volume and weight of the conveyed powder after it has been transported. Summary of the Invention

[0003] To address the technical deficiencies of existing technologies, this invention provides a powder conveyor.

[0004] The technical solution adopted in this invention is: a powder conveyor, including a material cylinder, the upper end of which is a feed inlet, and a cover is provided on the feed inlet. The lower end of the material cylinder is connected to a discharge box, and the discharge box is provided with a discharge outlet. A feeding pipe is provided inside the material cylinder, and a feeding block is connected to the end of the feeding pipe. A scraping hole is provided in the middle of the feeding block, and a scraping disc is provided on the lower surface of the scraping hole. Several through scraping grooves are provided on the scraping disc along the axial direction. The scraping disc and the feeding block are movable and cooperate to realize that after the powder is scraped out of the feeding block through the scraping hole, it falls into the scraping disc due to its own weight and then falls into the discharge box through the scraping grooves. The output shaft of a servo motor is connected in the middle of the scraping disc. The servo motor drives the scraping disc to rotate controllably and uniformly upward along the output shaft axis through the output shaft to achieve precise control of the amount of powder falling into the discharge box from the scraping hole.

[0005] The feeding block is provided with a limiting groove, which is located at the lower end of the scraping hole. The scraping disc is limited and cooperates with the limiting groove and moves between the feeding block and the limiting groove to scrape out the powder in the scraping hole.

[0006] The servo motor is located on the outside of the material cylinder. A synchronous pulley is connected to the output shaft of the servo motor. A spindle is driven on the synchronous pulley. The spindle is connected to the middle of the scraper disc. The output shaft is driven by the scraper disc through the synchronous pulley and the spindle.

[0007] The feeding block is fixedly installed at the end of the feeding pipe.

[0008] An air inlet is also provided on the side wall of the material cylinder above the scraper disc, and the gas in the air inlet blows the material outlet of the discharge box out.

[0009] The material cylinder is also equipped with a material barrel pressure balancing pipe, which connects the material cylinder and the discharge box to balance the pressure between the discharge box and the material barrel.

[0010] The upper cover is equipped with a clamping handwheel.

[0011] The material hopper is also equipped with a pressure gauge and a safety valve.

[0012] The beneficial effects of this invention are as follows: This invention provides a powder conveyor, including a material cylinder, with an inlet at the upper end of the cylinder and a cover on the inlet. A discharge box is connected to the lower end of the cylinder, and an outlet is provided on the discharge box. A discharge pipe is provided inside the cylinder, and a discharge block is connected to the end of the discharge pipe. A scraping hole is provided in the middle of the discharge block, and a scraping disc is provided on the lower surface of the scraping hole. Several through-grooves are arranged on the scraping disc along the axial direction. The scraping disc and the discharge block are movably coupled to allow powder to be scraped out of the discharge block through the scraping hole and fall into the scraping disc by its own weight, then into the discharge box through the scraping grooves. A servo motor output shaft is connected to the middle of the scraping disc. The servo motor drives the scraping disc to rotate controllably and uniformly upwards along the output shaft axis to achieve the scraping effect. Precise control of the amount of powder falling into the discharge box from the material hole is achieved through a servo motor-controlled synchronous belt that transmits power to the spindle, driving the scraper disc. The scraper disc scrapes the powder out of the material block, one slot at a time. After being scraped out, the powder falls into the discharge box under its own weight. Under gas pressure, the powder is blown out of the discharge port to the required conveying position. The pressure balance pipe between the material bucket and the discharge box is connected to balance the pressure between the discharge box and the material bucket, thus preventing pressure difference. In this way, the scraper disc can easily and evenly scrape material in each slot, similar to a measuring cup scooping out material one spoonful at a time. The servo motor controls the uniform speed or automatically adjusts the rotation speed to achieve precise measurement. Furthermore, the volume and weight of the powder being fed can be accurately calculated. Attached Figure Description

[0013] Figure 1 This is a partial cross-sectional view of the structure of the present invention.

[0014] Figure 2 This is a schematic diagram of the material feeding block structure of the present invention.

[0015] Figure 3 This is a schematic diagram of the scraper disc structure of the present invention.

[0016] Figure 4 This is a schematic diagram of the scraper disc structure of the present invention.

[0017] Figure 5 This is a schematic diagram showing the cooperation relationship between the scraper disc and the feed block of the present invention.

[0018] Among them, 1-material cylinder, 2-top cover, 3-discharge box, 4-discharge block, 5-scraper disc, 6-servo motor, 11-discharge pipe, 12-air inlet, 13-material cylinder pressure balance pipe, 21-pressurizing handwheel, 31-discharge port, 41-scraper hole, 42-limit groove, 51-scraper groove, 61-synchronous belt pulley, 62-spindle. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] A powder conveyor includes a material cylinder 1, the upper end of which is a feed inlet, and a top cover 2 is provided on the feed inlet. The lower end of the material cylinder 1 is connected to a discharge box 3, and the discharge box 3 is provided with a discharge port 31. A discharge pipe 11 is provided inside the material cylinder 1, and a discharge block 4 is connected to the end of the discharge pipe 11. The discharge block 4 is fixedly installed at the end of the discharge pipe 11. The feeding block 4 has a scraping hole 41 in the middle, and a scraping disc 5 is provided on the lower end surface of the scraping hole 41. The scraping disc 5 has several through scraping grooves 51 arranged axially. The scraping disc 5 and the feeding block 4 are movable together to allow powder to be scraped out of the feeding block 4 through the scraping hole 41 and fall into the scraping disc 5 by its own weight, then into the discharge box 3 through the scraping grooves 51. The feeding block 4 has a limiting groove 42, which is located at the lower end of the scraping hole 41. The scraping disc 5 is limited and engaged with the limiting groove 42, and movable within the limiting groove 42 and the feeding block 4 to scrape out the powder in the scraping hole 41. A servo motor 6 is connected to the middle of the scraping disc 5. The servo motor 6 drives the scraping disc 5 to rotate controllably and uniformly upwards along the output shaft axis through the output shaft, achieving precise control of the amount of powder falling into the discharge box 3 from the scraping hole 41. The servo motor 6 is located on the outside of the material cylinder 1. A synchronous pulley 61 is connected to the output shaft of the servo motor 6, and a spindle 62 is driven by the synchronous pulley 61. The spindle 62 is connected to the middle of the scraper disc 5. The output shaft is connected to the scraper disc 5 through the synchronous pulley 61 and the spindle 62. The servo motor of this invention drives the scraper disc to rotate at a controllable and uniform speed upward along the output shaft axis to achieve precise control of the amount of powder falling into the discharge box from the scraper hole. The synchronous belt controlled by the servo motor transmits power to the spindle, which drives the scraper disc. The scraper disc scrapes the powder out of the material block one slot at a time. Since each slot is scraped uniformly, it is similar to feeding material out one spoonful at a time like a measuring cup. By adjusting the control speed of the servo motor or automatically adjusting the rotation speed, the purpose of precise measurement can be achieved. Furthermore, the volume and weight of the powder can be accurately calculated. When in use, the material can be discharged through the discharge port on the discharge box 3, or the top cover can be opened and the material can be discharged through the inlet at the top of the material cylinder 1 by inverting the material cylinder 1.

[0021] An air inlet 12 is also provided on the side wall of the material cylinder 1 above the scraper disc 5. The gas in the air inlet 12 blows the material outlet 31 of the discharge box 3 to the required conveying position.

[0022] The material cylinder 1 is also equipped with a material barrel pressure balancing pipe 13, which connects the material cylinder 1 and the discharge box 3 to balance the pressure between the discharge box 3 and the material cylinder. By connecting the pressure of the material cylinder and the discharge box through the material barrel pressure balancing pipe, the pressure of the discharge box and the material cylinder is balanced, thus preventing pressure differences between them. This allows the scraper disc to easily and evenly scrape material from each slot, similar to a measuring cup scooping out material one spoonful at a time.

[0023] The upper cover 2 is provided with a clamping handwheel 21.

[0024] The material hopper is also equipped with a pressure gauge and a safety valve.

[0025] Please note to all technical personnel: Although the present invention has been described according to the specific embodiments above, the inventive concept of the present invention is not limited to this invention. Any modifications that utilize the inventive concept will be included within the scope of protection of this patent.

[0026] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiments. All technical solutions falling within the scope of the present invention's concept are within the scope of protection of the present invention. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principles of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. A powder conveyor, comprising a hopper (1), wherein the upper end of the hopper (1) is a feed inlet, the feed inlet is provided with a top cover (2), and the lower end of the hopper (1) is connected to a discharge box (3), the discharge box (3) is provided with a discharge outlet (31), characterized in that, The material hopper (1) is provided with a feeding pipe (11), and the end of the feeding pipe (11) is connected to a feeding block (4). The feeding block (4) is provided with a scraping hole (41) in the middle. A scraping disc (5) is provided on the lower end face of the scraping hole (41). Several through scraping grooves (51) are provided on the scraping disc (5) along the axial direction. The scraping disc (5) and the feeding block (4) are movable and cooperate to realize that after the powder is scraped out of the feeding block (4) through the scraping hole (41), it falls into the scraping disc (5) due to its own weight and falls into the discharge box (3) through the scraping grooves (51). The middle of the scraping disc (5) The output shaft is connected to a servo motor (6). The servo motor (6) drives the scraper disc (5) to rotate at a controllable and uniform speed along the output shaft axis to achieve precise control of the amount of powder falling into the discharge box (3) in the scraper hole (41). The feeding block (4) is provided with a limiting groove (42). The limiting groove (42) is located at the lower end of the scraper hole (41). The scraper disc (5) is limited and cooperates with the limiting groove (42) and moves between the limiting groove (42) and the feeding block (4) to scrape out the powder in the scraper hole (41). The upper cover (2) is provided with a clamping handwheel (21).

2. The powder conveyor according to claim 1, characterized in that, The servo motor (6) is located on the outside of the material barrel (1). A synchronous pulley (61) is connected to the output shaft of the servo motor (6). A spindle (62) is driven on the synchronous pulley (61). The spindle (62) is connected to the middle of the scraper disc (5). The output shaft is driven by the synchronous pulley (61) and the spindle (62).

3. The powder conveyor according to claim 1, characterized in that, The feeding block (4) is fixedly installed at the end of the feeding pipe (11).

4. The powder conveyor according to claim 1, characterized in that, An air inlet (12) is provided on the side wall of the material bucket (1) above the scraper (5), and the gas in the air inlet (12) blows out the discharge port (31) of the discharge box (3).

5. The powder conveyor according to claim 1, characterized in that, The material bucket (1) is also equipped with a material bucket pressure balance pipe (13), which connects the material bucket (1) and the discharge box (3) to balance the pressure between the discharge box (3) and the material bucket.

6. The powder conveyor according to claim 1, characterized in that, The material hopper is also equipped with a pressure gauge and a safety valve.

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