Powder feeding device capable of preventing dust raising

Abstract

The utility model relates to the technical field of paint production, and disclose a kind of powder dusting feeding device, the powder dusting feeding device, including feeding bin, the inside of feeding bin is provided with feeding cavity, the inside of feeding bin is provided with dust blocking subassembly, the dust blocking subassembly includes servo motor, rotary drum, baffle, fixed link, heterotypic convex ring, rack, spring and gear and baffle strip.This powder dusting feeding device is provided with dust blocking subassembly, when powder raw material is input into feeding cavity from above, the baffle strip in the baffle rotating to the position above feeding cavity is horizontal, the feeding of powder raw material is only distributed in the gap formed between the two groups of baffle outside rotary drum, the setting of baffle strip arc outer surface not only can reduce the impact when powder raw material discharges, but also can be collected when powder raw material is blocked when powder may appear dust, reduce the loss of powder raw material in the mixing feeding process.

Description

Technical Field

[0001] This utility model relates to the field of coating production technology, specifically to a dust-preventing feeding device for powder materials. Background Technology

[0002] In the production process of coatings, powder raw materials need to be mixed and stirred. Powder raw materials are generally packaged in bags during packaging and transportation. When they are put into the mixing equipment, they need to be fed in batches through a feeding device.

[0003] According to a dust-avoiding powder feeding device (Announcement No.: CN206590621U) published in the above application, during feeding, the powder enters the powder processing device through the inner conical cylinder. The dust raised at the feeding port of the double-layer feeding hopper is sucked into the cavity of the double-layer feeding hopper through the perforated structure on the connecting surface by the suction of the exhaust fan. The filter layer prevents the dust from entering the exhaust fan through the connecting pipe.

[0004] However, in actual use, the above-mentioned equipment uses a suction fan and other structures to extract the powder during the powder feeding process. However, lighter materials in the powder raw materials are also sucked up by the suction fan and other equipment and separated from the powder raw materials, resulting in a certain amount of powder raw materials being lost and consumed, reducing the utilization efficiency of powder production. In view of this, we propose a powder dust prevention feeding device. Summary of the Invention

[0005] The purpose of this invention is to provide a dust-preventing feeding device for powder materials, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a dust-preventing feeding device, comprising a feeding bin, wherein a feeding chamber is provided inside the feeding bin, and a dust-blocking component is provided inside the feeding bin;

[0007] The dust-blocking assembly includes a servo motor, which is fixedly installed on the outer wall of the feeding hopper. A rotating drum is fixedly installed through the inner wall of the feeding hopper at the output end of the servo motor. A partition is fixedly installed on the outer wall of the rotating drum. A fixing rod is fixedly installed on the inner wall of the feeding hopper on the side away from the servo motor. A shaped protruding ring is fixedly installed on the arc-shaped outer wall of the fixing rod. A toothed rod is slidably installed on the inner wall of the partition. A spring is fixedly connected between the end of the toothed rod and the inner wall of the partition. A gear is rotatably installed on the inner wall of the partition. A stop bar is fixedly installed coaxially on the gear.

[0008] Preferably, the interior of the rotating cylinder is hollow, and the fixing rod passes through the rotating cylinder and its end is rotatably connected to the inner wall of the rotating cylinder to maintain the stability of the fixing rod in the horizontal direction.

[0009] Preferably, the number of the irregular convex rings, racks, springs and gears is set in multiple sets, and the multiple sets of irregular convex rings, racks, springs and gears are evenly distributed in a linear array inside the partition so that the entire partition can play a role in shielding and isolating.

[0010] Preferably, the end surface of the rack near the irregular convex ring is provided as an arc-shaped surface to reduce wear or jamming between the rack and the irregular convex ring.

[0011] Preferably, the side of the baffle is arc-shaped to reduce the impact on the powder material when it hits the baffle, thereby slowing down the downward trend of the powder.

[0012] Preferably, an arc-shaped block is provided on the arc-shaped outer surface of the irregular convex ring, a horizontal groove is provided on the side of the arc-shaped outer surface of the irregular convex ring away from the arc-shaped block, and an arc-shaped groove is provided on the side of the stop bar away from the arc-shaped surface.

[0013] Preferably, the transverse grooves are provided in multiple sets, and the multiple sets of transverse grooves are arranged in an arc-shaped array on the arc-shaped outer surface of the irregular convex ring. The edges of the transverse grooves are rounded to reduce wear or jamming when the transverse grooves come into contact with the end of the toothed rod.

[0014] Compared with the prior art, the present invention provides a dust-preventing feeding device for powder materials, which has the following beneficial effects:

[0015] 1. This dust-preventing feeding device is equipped with a dust-blocking component. When the powder raw material is fed into the feeding chamber from above, the baffle in the partition plate that rotates to the upper position of the feeding chamber is horizontal. The powder raw material is only distributed in the gap formed between two adjacent sets of partition plates on the outside of the rotating drum. The arc-shaped outer surface of the baffle not only reduces the impact when the powder raw material is fed, but also blocks and collects the powder raw material when dust may be generated, reducing the loss of powder raw material during the mixing and feeding process.

[0016] 2. This dust-preventing feeding device, through the arc-shaped block on the outer side of the irregularly shaped convex ring and the setting of multiple sets of transverse grooves, causes the baffle in the partition plate that rotates into the inner area of ​​the feeding chamber to slide left and right along the inside of the partition plate due to the sliding of the toothed rod end along the surface of multiple sets of transverse grooves. This causes the baffle to swing back and forth, thereby expanding the diffusion range of the powder material on the surface of the partition plate in the feeding chamber, improving the uniformity of the powder material feeding, and thus facilitating the subsequent mixing and stirring operations. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the feeding hopper of this utility model;

[0019] Figure 3 This is a schematic cross-sectional view of the rotating cylinder structure of this utility model;

[0020] Figure 4 This is a partial three-dimensional structural diagram of the dust-blocking component of this utility model.

[0021] In the diagram: 1. Feeding bin; 2. Feeding chamber; 3. Dust-blocking assembly; 31. Servo motor; 32. Rotary drum; 33. Partition plate; 34. Fixing rod; 35. Irregular convex ring; 36. Toothed rod; 37. Spring; 38. Gear; 39. Stop bar; 351. Arc-shaped block; 352. Horizontal groove; 391. Arc-shaped groove. Detailed Implementation

[0022] like Figures 1-4 As shown, this utility model provides a technical solution: a dust-preventing feeding device, including a feeding bin 1, a feeding chamber 2 inside the feeding bin 1, and a dust-blocking component 3 inside the feeding bin 1. The dust-blocking component 3 includes a servo motor 31, a rotating drum 32, a partition 33, a fixing rod 34, a shaped protruding ring 35, a toothed rod 36, a spring 37, a gear 38, and a baffle 39.

[0023] In one embodiment of this utility model, a servo motor 31 is fixedly installed on the outer wall of the feeding bin 1. A rotating drum 32 is fixedly installed through the inner wall of the feeding bin 1 at the output end of the servo motor 31. A partition 33 is fixedly installed on the outer wall of the rotating drum 32. A fixing rod 34 is fixedly installed on the inner wall of the feeding bin 1 on the side away from the servo motor 31. A shaped protruding ring 35 is fixedly installed on the arc-shaped outer wall of the fixing rod 34. A toothed rod 36 is slidably installed on the inner wall of the partition 33. A spring 37 is fixedly connected between the end of the toothed rod 36 and the inner wall of the partition 33. A gear 38 is rotatably installed on the inner wall of the partition 33. A stop bar 39 is coaxially fixedly installed on the gear 38.

[0024] Furthermore, the interior of the rotating drum 32 is hollow, and the fixing rod 34 passes through the rotating drum 32 and its end is rotatably connected to the inner wall of the rotating drum 32 to maintain the stability of the fixing rod 34 in the horizontal direction. At the same time, multiple sets of irregularly shaped protruding rings 35, toothed rods 36, springs 37 and gears 38 are arranged in a linear array and evenly distributed inside the partition plate 33, so that the entire partition plate 33 can play a shielding and isolation role, avoiding the dust situation caused by the impact or shock of powder when it is poured from above. Specifically, the internal cavity of the partition plate 33 is connected to the internal cavity of the rotating drum 32, so that the irregularly shaped protruding ring 35 can play a transmission role on the end of the toothed rod 36. It is worth noting that the end surface of the toothed rod 36 near the irregularly shaped protruding ring 35 is set as an arc surface to reduce the wear or jamming between the toothed rod 36 and the irregularly shaped protruding ring 35.

[0025] Furthermore, the rack 36 meshes with the gear 38 to achieve transmission. Under the compression of the irregular convex ring 35, the rack 36 slides away from the fixed rod 34, thereby causing the spring 37 to compress. Through the sliding of the rack 36, the gear 38 drives the baffle 39 to rotate. Further, two sets of baffles 39 are provided, mirror-imagely positioned at the upper and lower ends of the gear 38, and each set is connected to both ends of the gear 38. Specifically, the sides of the baffles 39 are arc-shaped to reduce the impact on the powder material when it hits the baffles 39, thereby delaying the powder's impact. As the powder material begins to decline, the operator only needs to start the servo motor 31, which drives the rotating drum 32 to rotate slowly and continuously within the feeding chamber 2. At this time, due to the setting of multiple sets of baffles 33, the powder material is only distributed in a small area outside the rotating drum 32 within a certain period of time. At the same time, horizontal baffles 39 are set in the gap between the two sets of baffles 33. The arc-shaped outer surface of the baffles not only reduces the impact when the powder material is fed, but also blocks and collects the powder material when dust may be generated, reducing the loss of powder material during the mixing and feeding process.

[0026] Specifically, an arc-shaped block 351 is provided on the arc-shaped outer surface of the irregular convex ring 35, a horizontal groove 352 is provided on the side of the arc-shaped outer surface of the irregular convex ring 35 away from the arc-shaped block 351, and an arc-shaped groove 391 is provided on the side of the stop bar 39 away from the arc-shaped surface.

[0027] In this embodiment of the invention, multiple sets of transverse grooves 352 are arranged in an arc-shaped array on the arc-shaped outer surface of the irregular convex ring 35, and the edges of the transverse grooves 352 are rounded to reduce wear or jamming when the transverse grooves 352 contact the end of the toothed rod 36. Simultaneously, the arc-shaped outer surface of the irregular convex ring 35 is surrounded by arc-shaped blocks 351 and multiple sets of transverse grooves 352. Since the fixing rod 34 does not rotate, the positions of the arc-shaped blocks 351 and transverse grooves 352 on the irregular convex ring 35 will not shift, thus allowing the rotating drum 32 to rotate smoothly. The rotation of the gear 38 causes the baffle 39, which moves to the baffle 33 above the feeding chamber 2, to rotate to a horizontal position to block dust. The baffle 39, which rotates to the baffle 33 inside the feeding chamber 2, will slide left and right along the inside of the baffle 33 due to the sliding of the end of the toothed rod 36 along the surface of multiple sets of transverse grooves 352. This causes the baffle 39 to swing back and forth, thereby expanding the diffusion range of the powder material on the surface of the baffle 33 in the feeding chamber 2, improving the uniformity of the powder material feeding, and facilitating the subsequent mixing and stirring operations.

[0028] The arc-shaped groove 391 is designed so that when the baffle 39 is set horizontally, the arc-shaped groove 391 below it can improve the effect of the baffle 39 in blocking and intercepting dust, reduce the dispersion of powder raw materials, thereby reducing the waste of raw materials and improving the utilization rate of raw materials during feeding.

[0029] In this invention, during use, the servo motor 31 is first started to drive the rotating drum 32 to rotate slowly. The workers or mechanical feeding equipment put the powder raw materials required for paint production into the feeding chamber 2 from above. At this time, the baffle 39 in the partition 33 that has rotated to the position above the feeding chamber 2 is horizontal. The powder raw materials are only distributed in the gap formed between the two adjacent sets of partitions 33 on the outside of the rotating drum 32. The arc-shaped outer surface of the baffle 39 can not only reduce the impact when the powder raw materials are fed, but also block and collect the powder raw materials when dust may be generated, reducing the loss of powder raw materials during the mixing and feeding process.

[0030] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. A dust-prevention feeding device, comprising a feeding bin (1), wherein the feeding bin (1) has a feeding chamber (2) inside, characterized in that: The feeding hopper (1) is equipped with a dust-blocking component (3). The dust-blocking component (3) includes a servo motor (31), which is fixedly installed on the outer wall of the feeding bin (1). The output end of the servo motor (31) is fixedly installed through the inner wall of the feeding bin (1) with a rotating drum (32). A partition (33) is fixedly installed on the outer wall of the rotating drum (32). A fixing rod (34) is fixedly installed on the inner wall of the feeding bin (1) away from the servo motor (31). A shaped protruding ring (35) is fixedly installed on the arc-shaped outer wall of the fixing rod (34). A toothed rod (36) is slidably installed on the inner wall of the partition (33). A spring (37) is fixedly connected between the end of the toothed rod (36) and the inner wall of the partition (33). A gear (38) is rotatably installed on the inner wall of the partition (33). A stop bar (39) is fixedly installed on the gear (38) coaxially.

2. The dust-prevention feeding device according to claim 1, characterized in that: The interior of the rotating cylinder (32) is hollow, and the fixing rod (34) passes through the rotating cylinder (32) and its end is rotatably connected to the inner wall of the rotating cylinder (32).

3. The dust-prevention feeding device according to claim 1, characterized in that: The number of the irregular convex ring (35), the rack (36), the spring (37) and the gear (38) is set in multiple sets, and the multiple sets of irregular convex ring (35), rack (36), spring (37) and gear (38) are evenly distributed in a linear array inside the partition (33).

4. The dust-prevention feeding device according to claim 1, characterized in that: The end surface of the toothed bar (36) near the irregular convex ring (35) is configured as an arc-shaped surface.

5. The dust-prevention feeding device according to claim 1, characterized in that: The side of the baffle (39) is curved.

6. The dust-prevention feeding device according to claim 1, characterized in that: An arc-shaped block (351) is provided on the arc-shaped outer surface of the irregular convex ring (35), and a horizontal groove (352) is provided on the side of the arc-shaped outer surface of the irregular convex ring (35) away from the arc-shaped block (351). An arc-shaped groove (391) is provided on the side of the stop bar (39) away from the arc-shaped surface.

7. The dust-prevention feeding device according to claim 6, characterized in that: The number of transverse grooves (352) is set in multiple sets. The multiple sets of transverse grooves (352) are arranged in an arc-shaped array on the arc-shaped outer surface of the irregular convex ring (35), and the edges of the transverse grooves (352) are rounded.

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