Powder scattering device

Abstract

The utility model discloses a powder scattering device which comprises a powder hopper provided with a feed opening; the scattering assembly is arranged below the powder hopper, the scattering assembly is provided with a through cavity, the through cavity communicates with the discharging opening, and the through cavity is used for receiving powder falling from the discharging opening; the feeding gear is rotatably arranged in the through cavity, the rotating axis of the feeding gear is perpendicular to the discharging direction of the discharging opening, and tooth gaps of the feeding gear are used for containing powder; when the feeding gear is static, the feeding gear prevents the powder in the through cavity from falling, and when the feeding gear rotates, the tooth gaps drive the powder to rotate to the outside of the through cavity, so that the powder in the tooth gaps is scattered under the action of gravity. When the feeding gear is static, the feeding gear blocks powder in the through cavity from falling, when the feeding gear rotates, the tooth gaps drive the powder to rotate to the outside of the through cavity, the powder in the tooth gaps is scattered under the action of gravity, and the technical problems that in a traditional feeding mechanism, the mesh number of a screen is difficult to select, the screen is prone to being blocked, and the feeding efficiency is not stable enough are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of material addition, in particular to a powder sprinkling device. Background Art

[0002] In today's chemical production, catalysts are often added to promote the progress of production. However, in order to further ensure the stability of production efficiency, the amount of catalyst added per unit time needs to be controlled. The current addition equipment selects a screen with a mesh size that matches the catalyst powder particle size, vibrates the screen, and causes the catalyst powder on the screen to fall off. However, the way the screen vibrates and falls is affected by many factors. The amount of powder scattered by each vibration fluctuates, and there is no guarantee that the amount scattered is consistent, which affects the production effect.

[0003] In summary, developing a powder adding device that can control the addition metering and stably add catalyst is an urgent problem to be solved by those skilled in the art. Utility Model Content

[0004] The utility model aims to provide a powder sprinkling device, which solves the technical problems of uneven powder sprinkling and difficulty in regulating the powder sprinkling rate.

[0005] To achieve the above-mentioned purpose, the present invention provides a powder sprinkling device, comprising:

[0006] Powder hopper with a discharge port;

[0007] The sprinkling assembly is arranged below the powder hopper and is provided with a through cavity, which is connected to the discharge port and is used to receive the powder falling from the discharge port;

[0008] The feed gear is rotatably arranged in the through cavity, and the rotation axis of the feed gear is perpendicular to the discharge direction of the discharge port. The tooth gap of the feed gear is used to accommodate powder. When the feed gear is stationary, the feed gear blocks the powder in the through cavity from falling. When the feed gear rotates, the tooth gap drives the powder to rotate out of the through cavity, so that the powder in the tooth gap is sprinkled under the action of gravity.

[0009] Preferably, the sprinkler assembly includes a first clamping plate and a second clamping plate connected to each other, the first clamping plate has a connecting groove running through in a vertical direction, and the connecting groove and the side plane of the second clamping plate form a through cavity.

[0010] Preferably, a recessed portion is provided in the communicating groove, a mounting portion is provided on a side of the second clamping plate facing the first clamping plate, and both ends of the feed gear are rotatably provided on the recessed portion and the mounting portion respectively.

[0011] Preferably, the recessed portion is provided at a position where the connecting groove is away from the discharge port, and the connecting groove includes a tapered groove body and a uniform straight groove body. The tapered groove body is located at one end of the recessed portion facing the discharge port, and the uniform straight groove body is located at one end of the recessed portion away from the discharge port. The tapered groove body gradually tapers in a direction away from the discharge port, and the end side wall of the tapered groove body is connected to the side wall of the recessed portion. The uniform straight groove body and the recessed portion are connected, and the groove width of the uniform straight groove body is smaller than the diameter of the recessed portion.

[0012] Preferably, the feed gear is provided with a mounting hole, the inner wall of the mounting hole comprises an arc surface and a plane connected to each other, and the axis of the arc surface coincides with the axis of the feed gear.

[0013] Preferably, the first clamping plate and the second clamping plate are respectively provided with four fixing holes parallel to the axis of the feed gear, and the fixing holes are distributed at the vertices of the clamping plates, and the clamping plates are fixedly connected through the fixing points.

[0014] Preferably, it also includes a rotatable rotating rod, a through hole is provided in the mounting portion, one end of the rotating rod passes through the through hole and is fixedly connected to the mounting hole, and the feed gear is driven to rotate by the rotation of the rotating rod.

[0015] Preferably, the rotating rod is specifically an output end of the driving motor, and the housing of the driving motor is fixed on a side of the second clamping plate facing away from the first clamping plate.

[0016] Preferably, both the shell and the second splint are provided with corresponding limiting holes, the limiting holes are located in the area surrounded by the fixing holes, and fasteners are provided in the limiting holes to connect the shell and the second splint.

[0017] Preferably, the powder hopper includes a mounting plate and a funnel body, the mounting plate is fixedly connected to the first clamping plate, and the funnel body is specifically a trapezoidal funnel, and the funnel body is used to store powder.

[0018] Compared with the above background technology, the powder adding mechanism provided by the present invention includes: a feeding gear, a sprinkling assembly and a powder hopper. The powder hopper is used to store powder so that the powder sprinkling device has sufficient sprinkling objects. A through cavity is provided in the sprinkling assembly. The through cavity is located below the powder hopper and is connected to the feed port. The through cavity is used to receive the powder conveyed by the powder hopper. A feeding gear is rotatably connected in the through cavity. The setting direction of the feeding gear is perpendicular to the feeding direction of the feed port. The feeding gear divides the sprinkling assembly into two parts. When the feed gear is stationary, the powder in the through cavity at the upper end of the feed gear is blocked. The through cavity at the upper end can store part of the powder. The through cavity at the lower end of the feed gear can guide the powder to fall out of the sprinkling assembly. There is a triangular gap between the teeth of the feed gear. The tooth gap is used to accommodate the powder. When the feed gear rotates, the powder in the tooth gap rotates accordingly. When the tooth gap carrying the powder turns to open downward, the powder falls off from the tooth gap due to its own gravity and is sprinkled into the processed material.

[0019] The powder is put into the cavity at the upper end of the feed gear. The powder falls into the gap between the teeth due to its own gravity. During the rotation of the feed gear, the tooth tip will scrape the powder above and fill the powder into the gap between the teeth, ensuring that the gap between the teeth of the working feed gear and the powder is filled with powder, so that the same amount of powder is sprinkled every time the feed gear rotates one circle. At the same time, the speed of the feed gear can be controlled, and the powder adding mechanism can discharge the material continuously and stably. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are merely embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying any creative work.

[0021] Figure 1 A three-dimensional assembly diagram of a powder sprinkling device provided in an embodiment of the present utility model;

[0022] Figure 2 A structural diagram of the first splint provided in an embodiment of the present utility model;

[0023] Figure 3 A structural diagram of a second splint provided in an embodiment of the present utility model;

[0024] Figure 4 A side view of the feed gear provided by an embodiment of the present utility model;

[0025] Figure 5 A structural diagram of a powder hopper provided in an embodiment of the present utility model;

[0026] Figure 6 This is an assembly diagram of a powder hopper provided in an embodiment of the present utility model.

[0027] Among them: 1-first clamping plate; 11-recessed portion; 12-tapered trough body; 13-uniform straight trough body; 14-connecting hole; 15-fixing hole; 2-feeding gear; 21-mounting hole; 3-powder hopper; 31-funnel body; 32-mounting plate; 4-second clamping plate; 41-limiting hole; 5-driving motor. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0029] In order to enable those skilled in the art to better understand the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0030] Please refer to the instructions for Figure 1 The powder sprinkling device provided by the present application includes: a powder hopper 3, a sprinkling assembly and a feeding gear 2. The powder hopper 3 is located at the top of the powder sprinkling device as a whole. The powder hopper 3 has a discharge port, and the sprinkling assembly has a through cavity. The discharge port of the powder hopper 3 is connected to the port of the through cavity of the sprinkling assembly. The operator puts the powder into the through cavity of the sprinkling assembly through the powder hopper 3. At the same time, there is a large space in the powder hopper, which can store some powder additionally, so that the powder sprinkling device can continue to sprinkle. A rotatable feeding gear 2 is provided in the through cavity of the sprinkling assembly. The setting direction of the feeding gear 2 is perpendicular to the discharge direction of the feed port. The feeding gear 2 is rotated. The wheel 2 is placed horizontally between the through cavities, and the diameter of the feed gear 2 is slightly larger than the width of the through cavity near one end of the feed gear 2. The feed gear 2 divides the through cavity into two parts. When the feed gear 2 is stationary, the feed gear 2 blocks the powder above the through cavity. The upper powder can only reach the bottom of the through cavity through the feed gear 2. Due to the gravity of the powder itself, the powder falls into the gap between the teeth of the feed gear 2. When the feed gear 2 rotates, the teeth will carry the powder in the gap with it to rotate together. When the tooth gap turns to open downward, the powder that loses its support falls by its own gravity and is sprinkled into the reaction material under the guidance of the through groove in the lower part.

[0031] During the operation of the powder sprinkling device, powder falls into the tooth gap due to gravity, and when the feed gear 2 rotates, powder enters the tooth gap through the top of the teeth, so that the tooth gap of the feed gear 2 that contacts the powder is filled with powder. The amount of powder sprinkled by the feed gear 2 per rotation of one circle is determined by the number of teeth and the tooth gap of the gear. Therefore, at a certain speed, the amount of powder sprinkled by the powder sprinkling device per unit time is fixed, thereby ensuring the stability of the reaction production. In addition, the operator can also replace the appropriate feed gear 2 and select the appropriate speed of the feed gear 2 according to different production needs.

[0032] Please refer to the instructions for Figure 1 With the instruction manual Figure 2The sprinkling assembly includes a first plywood 1 and a second plywood 4, wherein a communicating groove is provided on one side of the first plywood 1, and the communicating groove penetrates the first plywood 1 in the vertical direction, and the communicating groove fits in with the side plane of the second plywood 4 to form a through cavity of the sprinkling assembly, and the powder storage and the powder sprinkling by the rotation of the feed gear 2 are both carried out in the first plywood 1, and the second plywood 4 provides a side wall for closing the cavity. In addition, a recessed portion 11 is provided on one side of the first plywood 1 where the communicating groove is set, and the recessed portion 11 is located on the side of the communicating groove away from the discharge port, and the depth of the recessed portion 11 along the thickness direction of the first plywood 1 is greater than the depth of the communicating groove. Similarly, a mounting portion is provided on the side of the second plywood 4 close to the through groove. The mounting portion and the recessed portion 11 are coaxially arranged, and the aperture and groove depth of the two are the same. The mounting portion and the recessed portion 11 respectively accommodate the two ends of the feed gear 2, and the mounting portion and the recessed portion 11 install the feed gear 2 in the through cavity of the sprinkling component by clamping. Since the depth of the recessed portion 11 on the first clamping plate 1 is greater than the depth of the connecting groove, the mounting portion extends into the side plane of the second clamping plate 4. That is to say, after the feed gear 2 is installed, the two ends of the feed gear 2 extend into the side walls of the through cavity of the sprinkling component, so that there is no vertical gap between the feed gear 2 and the side walls of the through cavity. During the falling process, the powder can only be blocked on the feed gear 2, thereby preventing some powder from leaking out and affecting production efficiency.

[0033] The end of the tapered groove 12 is connected to the side wall of the recessed portion 11, and the end of the tapered groove 12 is connected to the side wall of the recessed portion 11. The tapered groove 12 guides the powder to the upper end of the feed gear 2 so that the powder fills the gap of the feed gear 2. The straight groove 13 is arranged at the end of the recessed portion 11 away from the discharge port. The straight groove 13 is connected to the tapered groove 12 through the recessed portion 11. The straight groove 13 receives the powder spilled from the tooth gap of the feed gear 2 and guides the powder into the reaction material. In order to conveniently control the amount of powder spilled on the feed gear 2, the width of the straight groove 13 is set to be smaller than the diameter of the recessed groove, so that the end of the straight groove 13 is located at the lower end of the recessed groove. The powder in the tooth gap will only spill when the tooth gap opening is facing downward to a large extent.

[0034] The driving device of the feeding gear 2 is the driving motor 5. Figure 4 A mounting hole 21 is provided on the inner side of the feed gear 2. The inner wall of the mounting hole 21 is composed of an arc surface and a plane. The housing of the drive motor 5 is arranged on the side of the second splint 4 away from the first splint 1. A through hole is provided in the mounting portion on the second splint 4. A rotatable rotating rod is provided on the drive motor 5. The rotating rod passes through the through hole and cooperates with the mounting hole 21. Since the inner wall of the mounting hole 21 has a plane, when the rotating rod rotates, the plane end of the rotating rod abuts against the plane of the mounting hole 21, pushing the feed gear 2 to rotate with the rotating rod.

[0035] Please see the attached Figure 2 With the instruction manual Figure 3 In order to ensure that the components form a stable whole, the first plywood 1 and the second plywood 4 are respectively provided with four fixing holes 15 parallel to the feed gear 2, and each fixing hole 15 is respectively located at the vertex of the first plywood 1 and the second plywood 4. Each fixing hole 15 of the first plywood 1 is aligned with the corresponding fixing hole 15 of the second plywood 4, and the fixing parts are passed through the fixing holes 15 of each plywood to fix the first plywood 1 and the second plywood 4 to ensure the stability of the through cavity of the sprinkling assembly. In addition, the side of the first plywood 1 close to the powder hopper 3 is provided with a connecting hole 14 parallel to the discharging direction, and the connecting holes 14 are symmetrically distributed on both sides of the entrance of the connecting groove. The lower hopper consists of a mounting plate 32 and a funnel body 31. The mounting plate 32 is fixedly connected to the sprinkling assembly through the connecting holes 14. The funnel body 31 is specifically a trapezoidal funnel, in which the opening with a smaller area faces downward, which is the feed port of the lower hopper.

[0036] Limiting holes 41 are provided on the second clamping plate 4 and the driving motor 5, and the positions of the limiting holes 41 of the two correspond one to one, and the limiting holes 41 of the second clamping plate 4 are located within the area enclosed by the fixing holes 15, that is, each limiting hole 41 is located within the rectangle formed by connecting the fixing holes 15, and each limiting hole 41 can also be connected into a rectangle. Fasteners are set in each limiting hole 41 to fix the driving motor 5 housing and the second clamping plate 4 to prevent the housing from rotating relative to the second clamping plate 4 when the rotating rod rotates.

[0037] It should be noted that, in this specification, relational terms such as first and second are merely used to distinguish one entity from other entities, but do not necessarily require or imply any actual relationship or order between these entities.

[0038] This article uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only intended to help understand the method and core concept of the present invention. It should be noted that those skilled in the art can make various improvements and modifications to the present invention without departing from the principles of the present invention, and such improvements and modifications also fall within the scope of protection of the present invention.

Claims

1. A powder sprinkling device, characterized in that: include: A powder hopper (3) having a discharge port; A sprinkling assembly is provided below the powder hopper (3), the sprinkling assembly being provided with a through cavity, the through cavity being communicated with the discharge port, and the through cavity being used to receive the powder falling from the discharge port; A feed gear (2) is rotatably disposed in the through cavity, the rotation axis of the feed gear (2) being perpendicular to the discharge direction of the discharge port, and a tooth gap of the feed gear (2) being used to accommodate powder; when the feed gear (2) is stationary, the feed gear (2) blocks the powder in the through cavity from falling, and when the feed gear (2) rotates, the tooth gap drives the powder to rotate out of the through cavity, so that the powder in the tooth gap is scattered under the action of gravity.

2. The powder sprinkling device according to claim 1, characterized in that: The sprinkler assembly comprises a first clamping plate (1) and a second clamping plate (4) connected to each other, the first clamping plate (1) having a communication groove running through in a vertical direction, and the communication groove and the side plane of the second clamping plate (4) forming the through cavity.

3. The powder sprinkling device according to claim 2, characterized in that: A recessed portion (11) is provided in the communicating groove, a mounting portion is provided on a side of the second clamping plate (4) facing the first clamping plate (1), and two ends of the feed gear (2) are rotatably provided on the recessed portion (11) and the mounting portion, respectively.

4. The powder sprinkling device according to claim 3, characterized in that: The recessed portion (11) is provided at a position where the connecting groove is away from the discharge port, and the connecting groove comprises a tapered groove body (12) and a straight groove body (13), wherein the tapered groove body (12) is located at one end of the recessed portion (11) facing the discharge port, and the straight groove body (13) is located at one end of the recessed portion (11) away from the discharge port, and the tapered groove body (12) gradually tapers in a direction away from the discharge port, and the end side wall of the tapered groove body (12) is connected to the side wall of the recessed portion (11), the straight groove body (13) is connected to the recessed portion (11), and the groove width of the straight groove body (13) is smaller than the diameter of the recessed portion (11).

5. The powder sprinkling device according to claim 4, characterized in that: The feed gear (2) is provided with a mounting hole (21), the inner wall of the mounting hole (21) comprises an arc surface and a plane surface connected to each other, and the axis of the arc surface coincides with the axis of the feed gear (2).

6. The powder sprinkling device according to claim 5, characterized in that: The first clamping plate (1) and the second clamping plate (4) are respectively provided with four fixing holes (15) parallel to the axis of the feed gear (2), and each of the fixing holes (15) is distributed at the vertices of the clamping plates, and the clamping plates are fixedly connected through the fixing holes (15).

7. The powder sprinkling device according to claim 6, characterized in that: It also includes a rotatable rotating rod, a through hole is provided in the mounting portion, one end of the rotating rod passes through the through hole and is fixedly connected to the mounting hole (21), and the rotation of the rotating rod drives the feed gear (2) to rotate.

8. The powder sprinkling device according to claim 7, characterized in that: The rotating rod is specifically the output end of the driving motor (5), and the housing of the driving motor (5) is fixed on a side of the second clamping plate (4) facing away from the first clamping plate (1).

9. The powder sprinkling device according to claim 8, characterized in that: The housing and the second clamping plate (4) are both provided with corresponding position limiting holes (41), the limiting holes (41) are located within the area surrounded by the fixing hole (15), and a fastener is provided in the limiting hole (41) to connect the housing and the second clamping plate (4).

10. The powder sprinkling device according to any one of claims 2 to 9, characterized in that: The powder hopper (3) comprises a mounting plate (32) and a funnel body (31); the mounting plate (32) is fixedly connected to the first clamping plate (1); the funnel body (31) is specifically a trapezoidal funnel; and the funnel body (31) is used to store powder.

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