A quantitative packaging device for hexagonal boron nitride powder

Abstract

The utility model discloses a kind of hexagonal boron nitride powder ration packaging devices, solve the problem that cannot accurately quantitative sampling in prior art.The technical scheme of the utility model is realized as follows:one kind of hexagonal boron nitride powder ration packaging device, including blanking hopper, blanking hopper is connected with support, support is equipped with the quantitative material taking assembly corresponding with blanking hopper discharge port, the lower part of quantitative material taking assembly is connected with transition connecting pipe, the feed inlet of transition connecting pipe is set in blanking hopper outlet dislocation, transition connecting pipe is equipped with scraping assembly, the lower part of transition connecting pipe is equipped with the expander connected with the lifting assembly arranged on support.Transition connecting pipe and expander cooperate with blanking hopper and quantitative material taking assembly, namely, the ration, clean, no leakage packaging of hexagonal boron nitride powder can be realized, structure is extremely simple, easy to maintain.

Description

Technical Field

[0001] This utility model relates to the field of processing equipment technology, and in particular to a quantitative packaging device. Background Technology

[0002] Hexagonal boron nitride (h-BN), commonly known as "white graphite," is extremely soft, has a low density (2.27 g / cm³), and a median particle size generally <10 μm. At the end of production, it requires a quantitative packaging machine to rapidly fill each bag with specific dimensions. However, lightweight micro-powders are easily disturbed by airflow during free fall. While traditional open-drop structures (CN219524306U) achieve intermittent feeding via a motor-cam-baffle, the open section of over 150 mm between the funnel outlet and the expander causes the powder to fall in a waterfall-like manner after leaving the baffle, with an instantaneous induced velocity reaching 3 m / s, driving a lateral airflow of 0.2 m / s and resulting in 0.3%–0.8% scattering loss. Simultaneously, the baffle only performs horizontal pulling, easily forming a 0.5–1 mm retention layer on its surface. When the baffle returns to its original position, the powder is carried out of the machine, polluting the working environment and causing deviations in the actual weight of each bag, failing to meet the contract requirements of high-end customers. In addition, the expansioner lifting and the baffle opening and closing are driven by two independent sets, resulting in large synchronization errors. The bag opening is frequently pressed down by falling powder, requiring manual cleaning after shutdown. The shutdown and cleaning process is time-consuming and seriously affects the production capacity.

[0003] Therefore, there is an urgent need for a purely mechanical structural improvement scheme that can achieve integrated functions such as "fully enclosed transition, baffle-channel linkage scraping, single drive dual action, and mechanical quantitative measurement" without eliminating any control modules, so as to fundamentally solve the problems of light powder scattering, residue and blockage. Utility Model Content

[0004] To address the shortcomings of the aforementioned background technology, this utility model proposes a quantitative packaging device for hexagonal boron nitride powder, which solves the problem of inaccurate quantitative sampling in the prior art.

[0005] The technical solution of this utility model is implemented as follows: A quantitative packaging device for hexagonal boron nitride powder includes a feeding funnel, a support connected to the feeding funnel, a quantitative feeding component corresponding to the discharge port of the feeding funnel on the support, a transition connecting pipe connected to the lower part of the quantitative feeding component, the inlet of the transition connecting pipe being offset from the discharge port of the feeding funnel, a scraping component inside the transition connecting pipe, and an expander connected to a lifting component mounted on the support at the lower part of the transition connecting pipe.

[0006] More preferably, the quantitative feeding component includes a support plate, a feeding frame is slidably disposed inside the support plate, a feeding baffle is disposed on the upper part of one side of the feeding frame, a dropping baffle is disposed on the lower part of the other side of the feeding frame, and the dropping baffle is connected to a telescopic member disposed on the bracket.

[0007] More preferably, the support plate is a U-shaped plate that cooperates with the material picking frame, and both ends of the support plate are connected to the bracket.

[0008] More preferably, the upper part of the transition connecting plate is connected to the support plate.

[0009] More preferably, the scraping assembly includes a scraper for scraping the inner wall of the transition connecting pipe, the scraper having a sliding ring that slides along the transition connecting pipe, and the sliding ring cooperating with a drive component mounted on a bracket.

[0010] More preferably, the sliding ring is provided with an annular limiting protrusion, which slides in conjunction with an annular track groove provided on the transition connecting pipe.

[0011] More preferably, the scraper is provided with a limiting ring, which slides in conjunction with a groove provided on the transition connecting pipe.

[0012] More preferably, the driving component includes a drive motor, and the output shaft of the drive motor is connected to the sliding ring via a gear pair.

[0013] More preferably, the upper part of the expander is provided with a sleeve fitted onto the lower part of the material picking frame, and the sleeve slides up and down along the transition connecting pipe.

[0014] More preferably, the lifting assembly includes two symmetrically arranged lifting cylinders, and the telescopic end of the lifting cylinder is provided with a connecting rod, which is connected to the expander.

[0015] The beneficial effects of this utility model are as follows: This utility model relies on the cooperation of a feeding funnel, a quantitative feeding component, a transition connecting pipe, and an expander to achieve quantitative, clean, and leak-free packaging of hexagonal boron nitride powder. The structure is extremely simple and maintenance is convenient. The discharge port of the feeding funnel and the inlet of the transition connecting pipe are not on the same vertical line, preventing dust from being directly sprayed downwards from inside the funnel, significantly improving the visual cleanliness of the packaging site. Feeding, scraping the walls, and supporting the bag require no additional metering instruments, sensors, or temperature control units, resulting in an extremely simple structure and fewer potential failure points. Attached Figure Description

[0016] To more clearly illustrate the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a cross-sectional view of the present invention.

[0018] In the diagram: 1. Bracket, 2. Telescopic cylinder, 3. Support plate, 4. Quantitative material handling component, 4-1. Material handling baffle, 4-2. Material handling frame, 4-3. Material discharge baffle, 5. Discharge funnel, 6. Lifting cylinder, 7. Connecting rod, 8. Support frame, 9. Stepper motor, 10. Drive gear, 11. Driven gear, 12. Expander, 13. Transition connecting pipe, 14. Scraper. Detailed Implementation

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

[0020] like Figure 1 As shown in Embodiment 1, a quantitative packaging device for hexagonal boron nitride powder includes a feeding funnel 5, a support 1 connected to the feeding funnel 5, a quantitative dispensing component 4 corresponding to the discharge port of the feeding funnel 5 on the support 1, a transition connecting pipe 13 connected to the lower part of the quantitative dispensing component 4, the inlet of the transition connecting pipe 13 being offset from the discharge port of the feeding funnel 5, a scraping component inside the transition connecting pipe 13, and an expander 12 connected to a lifting component mounted on the support 1 at the lower part of the transition connecting pipe 13. This device, relying on the cooperation of the feeding funnel 5, the quantitative dispensing component 4, the transition connecting pipe 13, and the expander 12, achieves quantitative, clean, and leak-free packaging of hexagonal boron nitride powder, with a very simple structure and convenient maintenance. The discharge port of the feeding funnel 5 and the inlet of the transition connecting pipe 13 are not on the same vertical line, which prevents dust in the funnel from being sprayed directly downwards, and significantly improves the visual cleanliness of the packaging site; there are no additional metering instruments, sensors or temperature control units for material picking, wall scraping and bag opening, the structure is extremely simple and there are few points of failure.

[0021] like Figure 2As shown in Example 2, a quantitative packaging device for hexagonal boron nitride powder includes a quantitative dispensing component 4 comprising a support plate 3. A dispensing frame 4-2 is slidably disposed within the support plate 3. A dispensing baffle 4-1 is disposed on the upper part of one side of the dispensing frame 4-2, and a dropping baffle 4-3 is disposed on the lower part of the other side of the dispensing frame 4-2. The dropping baffle 4-3 is connected to a telescopic component mounted on a support 1. The support plate 3 is a U-shaped plate that cooperates with the dispensing frame 4-2, and both ends of the support plate 3 are connected to the support 1. The upper part of the transition connecting pipe is connected to the support plate 3. The telescopic component is preferably a telescopic cylinder 2. Under the action of the telescopic component, the dropping baffle 4-3 slides along the U-shaped support plate 3 to dispense material. The two baffles open and close sequentially, cooperating with the dispensing frame 4-2 to achieve purely mechanical volumetric quantitative dispensing without the need for measuring instruments. The structure is compact, easy to assemble and disassemble, and adaptable to rapid switching between multiple product types.

[0022] All other structures are the same as in Example 1.

[0023] like Figure 1 As shown in Example 3, a quantitative packaging device for hexagonal boron nitride powder includes a scraper 14 for scraping the inner wall of a transition connecting pipe 13. The scraper 14 has a sliding ring that rotates along the transition connecting pipe 13, and the sliding ring cooperates with a driving component mounted on a support 1. The sliding ring has an annular limiting protrusion that slides in cooperation with an annular track groove on the transition connecting pipe 13. The rotating scraper 14 built into the transition connecting pipe 13 gently sweeps away powder adhering to the wall before and after each dispensing, avoiding the formation of rings due to adsorption on the inner wall, eliminating the need for manual tapping, and reducing downtime for maintenance.

[0024] In this embodiment, the scraper 14 is provided with a limiting ring, which slides in conjunction with a groove on the transition connecting pipe 13. The driving component includes a drive motor, the output shaft of which is connected to the sliding ring via a gear pair. The upper part of the expander 12 is provided with a sleeve fitted over the lower part of the material picking frame 4-2, which slides up and down along the transition connecting pipe 13. The limiting ring and groove guide the scraper 14 to rotate steadily and sweep the wall; the gear pair drives the motor to clean immediately upon starting; the sleeve connects the lifting cylinder 6 to simultaneously support the bag, preventing powder from being thrown out during material drop. The lifting assembly includes two symmetrically arranged lifting cylinders 6, with a connecting rod 7 at the telescopic end of the lifting cylinder 6, which is connected to the expander 12. The expander 12 and the lifting cylinder 6 are linked, lowering to support the bag and raising to release the bag, ensuring that the bag opening is always evenly expanded outward, allowing the powder to fall vertically. The operator only needs to hang the bag and does not need to hold it by hand, reducing labor intensity.

[0025] All other structures are the same as in Example 2.

[0026] The specific working process is as follows: The feeding hopper 5 stores loose hexagonal boron nitride powder; the feeding frame 4-2 in the quantitative feeding component 4 is completely retracted into the support plate 3, with the feeding frame 4-2 corresponding to the outlet of the feeding hopper 5. The hopper opening is connected to the upper opening of the feeding frame 4-2, and the powder fills the inner cavity of the feeding frame 4-2 in one go under its own weight. The discharge baffle 4-3 seals the lower opening of the feeding frame 4-2; the expander 12 is in its highest position, with its upper sleeve fitting against the lower edge of the feeding frame 4-2 to prevent dust from escaping. The telescopic component slowly pushes out the feeding frame 4-2, allowing it to slide horizontally along the support plate 3. The feeding baffle 4-1 moves into the projected area of ​​the feeding hopper 5 along with the frame, and the discharge baffle 4-3 slowly overlaps with the lower opening of the frame, achieving passive quantitative feeding by "filling first and then sealing". The telescopic component stops when the feeding frame 4-2 reaches its final position, completing one feeding cycle. The drive motor rotates the sliding ring via a gear pair. The annular limiting protrusion on the sliding ring slides along the annular track groove on the inner wall of the transition connecting pipe 13. At the same time, the scraper 14 slides against the pipe wall, scraping off any fine powder particles that may adhere to it. The limiting ring cooperates with the axial sliding groove of the pipe wall to ensure that the scraper 14 always maintains a perpendicular posture to the pipe wall, preventing powder from accumulating at corners. This action is performed simultaneously during the forward movement of the material picking frame 4-2, so the scraped powder falls directly into the material picking frame 4-2 without causing additional waste. The telescopic component retracts, the material picking frame 4-2 returns to the support plate 3, the material picking baffle 4-1 seals the outlet of the discharge funnel 5 again, and the discharge baffle 4-3 seals the lower opening of the material picking frame 4-2 again. The device returns to its initial state, waiting for the next cycle.

[0027] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A quantitative packaging device for hexagonal boron nitride powder, characterized in that: Includes a feeding hopper (5), a support (1) connected to the feeding hopper (5), a quantitative feeding component (4) corresponding to the discharge port of the feeding hopper (5) on the support (1), a transition connecting pipe (13) connected to the lower part of the quantitative feeding component (4), the inlet of the transition connecting pipe (13) being offset from the outlet of the feeding hopper (5), a scraping component inside the transition connecting pipe (13), and an expander (12) connected to the lifting component on the support (1) at the lower part of the transition connecting pipe (13).

2. The quantitative packaging device for hexagonal boron nitride powder according to claim 1, characterized in that: The quantitative feeding component (4) includes a support plate (3), a feeding frame (4-2) is slidably provided in the support plate (3), a feeding baffle (4-1) is provided on the upper part of one side of the feeding frame (4-2), a dropping baffle (4-3) is provided on the lower part of the other side of the feeding frame (4-2), and the dropping baffle (4-3) is connected to the telescopic member provided on the bracket (1).

3. The quantitative packaging device for hexagonal boron nitride powder according to claim 2, characterized in that: The support plate (3) is a U-shaped plate that cooperates with the material picking frame (4-2), and both ends of the support plate (3) are connected to the bracket (1).

4. The quantitative packaging device for hexagonal boron nitride powder according to claim 3, characterized in that: The upper part of the transition connecting pipe (13) is connected to the support plate (3).

5. The quantitative packaging device for hexagonal boron nitride powder according to claim 3 or 4, characterized in that: The scraping assembly includes a scraper (14) for scraping the inner wall of the transition connecting pipe (13). The scraper (14) is provided with a sliding ring that slides along the transition connecting pipe (13). The sliding ring cooperates with a drive component provided on the bracket (1).

6. The quantitative packaging device for hexagonal boron nitride powder according to claim 5, characterized in that: The sliding ring is provided with an annular limiting protrusion, which slides in conjunction with the annular track groove provided on the transition connecting pipe (13).

7. The quantitative packaging device for hexagonal boron nitride powder according to claim 6, characterized in that: The scraper (14) is provided with a limiting ring, which slides in conjunction with a groove provided on the transition connecting pipe (13).

8. The quantitative packaging device for hexagonal boron nitride powder according to claim 6 or 7, characterized in that: The driving component includes a drive motor, and the output shaft of the drive motor is connected to a sliding ring via a gear pair.

9. The quantitative packaging device for hexagonal boron nitride powder according to claim 8, characterized in that: The upper part of the expander (12) is provided with a sleeve fitted under the material picking frame (4-2), and the sleeve slides up and down along the transition connecting pipe (13).

10. The quantitative packaging device for hexagonal boron nitride powder according to claim 9, characterized in that: The lifting assembly includes two symmetrically arranged lifting cylinders (6), and the telescopic end of the lifting cylinder (6) is provided with a connecting rod (7), which is connected to the expander (12).

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