Feeding mechanism for high-precision powdery material weighing and packaging machine
By designing anti-adhesion components and closed control components, the problem of powder accumulation was solved, enabling continuous and stable feeding of powdered materials and improving packaging accuracy and production efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HEBEI ZIWEISHAN PHARMA
- Filing Date
- 2025-06-11
- Publication Date
- 2026-05-26
Smart Images
Figure CN224277657U_ABST
Abstract
Description
Technical Field
[0001] The embodiments disclosed herein relate to the technical field of feeding mechanisms for high-precision powder material weighing and packaging machines, specifically, to a feeding mechanism for high-precision powder material weighing and packaging machines. Background Technology
[0002] In the field of high-precision weighing and packaging of powdered materials, the feeding mechanism, as the starting point of material conveying, directly affects packaging accuracy and production efficiency due to the uniformity and sufficiency of its feeding. However, the feeding mechanism of traditional weighing and packaging machines generally adopts a conical barrel structure. When powder is blown in, it is easy to accumulate on the inner wall of the barrel, resulting in insufficient feeding and low conveying efficiency, which has become a technical bottleneck restricting the improvement of packaging accuracy.
[0003] Existing feeding mechanisms mostly use conical drums as storage containers, relying on gravity or simple air blowing to transport powder. When high-pressure airflow blows powder into the conical drum, the powder accumulates on the inner wall of the drum, especially at the corners of the conical surface, where the accumulation is more severe. For example, when packaging fine powders such as flour and milk powder, the accumulated powder forms an arch structure, hindering the normal descent of subsequent powder, resulting in unstable feeding and large packaging accuracy errors. Furthermore, the accumulated powder, remaining on the inner wall for extended periods, is prone to moisture absorption and clumping, affecting material quality and requiring frequent shutdowns for cleaning, increasing production and maintenance costs.
[0004] Furthermore, traditional feeding mechanisms lack effective anti-accumulation measures and cannot automatically adjust the feeding status according to the characteristics of the powder. For powders of different particle sizes and moisture content, the accumulation situation varies greatly. Operators need to manually adjust the air blowing pressure or tap the barrel wall to alleviate accumulation. This method is not only labor-intensive but also makes it difficult to ensure the uniformity and stability of the feeding. In high-speed packaging production lines, feeding interruptions caused by accumulation directly affect the continuity of the production line and reduce production efficiency.
[0005] With the increasing demands for precision packaging of powdered materials in industries such as food and chemicals, traditional feeding mechanisms, due to problems such as "easy accumulation, poor material discharge, and low efficiency," can no longer meet the needs of high-precision packaging. There is an urgent need to develop a feeding mechanism that can effectively prevent powder accumulation and ensure sufficient material discharge. Utility Model Content
[0006] To overcome the above-mentioned defects, the embodiments of this disclosure provide a feeding mechanism for a high-precision powder material weighing and packaging machine, which solves the technical problem that the feeding mechanism of the existing weighing and packaging machine generally adopts a conical barrel structure, which makes it easy for powder to accumulate on the inner wall of the barrel after being blown in, resulting in insufficient feeding and low conveying efficiency.
[0007] According to one aspect, at least one embodiment of this disclosure provides a feeding mechanism for a high-precision powder material weighing and packaging machine, comprising:
[0008] A conical barrel and an inlet pipe, wherein the inlet pipe is disposed on the outer wall of the conical barrel;
[0009] A connecting component, wherein the connecting component is disposed at one end of the inlet pipe;
[0010] The drive motor is mounted on the top of the conical barrel, and the anti-adhesion component is disposed inside the conical barrel.
[0011] A docking pipe and a sealing control component are provided, wherein the docking pipe is disposed at the bottom of the conical barrel and the sealing control component is disposed within the docking pipe;
[0012] The anti-adhesion component includes an inner ring layer, which is disposed at the lower end of the inner wall of the conical barrel. A slidable cover is connected to the inner ring layer, and a spiral layer is disposed on the outer wall of the slidable cover.
[0013] As a further technical solution, a baffle is provided at the top of the conical barrel, a connecting frame is provided on the inner wall of the baffle, the connecting frame is connected to the output end of the drive motor, and the diaphragm sealing rotating sleeve is connected to the output end of the drive motor.
[0014] As a further technical solution, the connecting assembly includes an inner nozzle, which is disposed at the lower end of the inlet tube. A powder blowing tube is fitted onto the lower end of the inner nozzle, and the powder blowing tube is fixedly connected to the inlet tube by screws.
[0015] As a further technical solution, the closed control component includes a connecting seat, which is disposed on the outer wall of the docking pipe. A control motor is installed on the connecting seat, and a sealing plate is provided at the output end of the control motor.
[0016] As a further technical solution, the powder blowing tube is made of a deformation-resistant and bendable vacuum rubber tube.
[0017] As a further technical solution, the top of the conical barrel has an arc-shaped transition structure surface.
[0018] As a further technical solution, a number of scraper rods are provided at the bottom of the conical barrel, and the scraper rods are attached to the inner wall of the shroud.
[0019] As a further technical solution, the inlet pipe interface is located above the inner ring layer, and the inlet pipe has an overall L-shaped structure.
[0020] The beneficial effects of the embodiments disclosed herein are as follows:
[0021] 1. In this disclosure, the anti-adhesion component drives the diaphragm and spiral layer to rotate via a drive motor. The spiral layer exerts an upward thrust on the powder on the inner wall of the conical barrel, causing it to move upward along the conical surface and gather towards the top center, thus preventing the powder from accumulating on the conical wall. The rotation of the top diaphragm inside the conical barrel creates airflow disturbance, preventing the powder from adhering to the top of the barrel and guiding the material to fall evenly from the top center. The scraper sticks to the inner wall of the diaphragm to scrape away residual powder, ensuring continuous and stable material feeding and solving the problem of powder accumulation.
[0022] 2. In this disclosure, the inner sleeve of the connecting component is connected to the powder blowing pipe and fixed with screws to form a sealed channel. The inner diameter of the inner sleeve matches the outer diameter of the powder blowing pipe to prevent powder leakage. The powder blowing pipe is made of anti-deformation vacuum rubber tube, which can be bent at will and will not be folded, ensuring stable powder conveying. The connecting component achieves reliable connection with the powder blowing and feeding equipment, facilitates installation and disassembly, and ensures that the powder enters the conical barrel smoothly, providing a guarantee for feeding.
[0023] 3. In this disclosure, the drive motor of the closed control component drives the sealing plate to rotate, controlling the opening and closing of the docking pipe. When material needs to be discharged, the sealing plate rotates to the open position, and the powder falls through the docking pipe. When material discharge stops, the sealing plate rotates to the closed position, adhering to the inner wall of the docking pipe to prevent the powder from falling. This achieves precise control over the timing and amount of material discharge, meets the material control requirements of weighing and packaging, and improves packaging accuracy and production efficiency. Attached Figure Description
[0024] To more clearly illustrate the technical solutions in the embodiments of this disclosure, the accompanying drawings used in the description of the embodiments of this disclosure will be briefly introduced below. Obviously, the drawings described below are merely some exemplary embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on the content of the exemplary embodiments of this disclosure and these drawings without any creative effort.
[0025] Figure 1 This is a schematic diagram of a structure in one embodiment of the present disclosure;
[0026] Figure 2 This is an isometric sectional view of the present disclosure;
[0027] Figure 3 This is another isometric sectional view of this disclosure;
[0028] Figure 4 Appendix to this disclosure Figure 2 Enlarged view of part A in the middle;
[0029] In the diagram: 1. Conical barrel; 2. Inlet pipe; 3. Drive motor; 4. Connecting pipe; 5. Anti-adhesion assembly; 5-1. Inner ring layer; 5-2. Partition; 5-3. Spiral layer; 5-4. Block cover; 5-5. Connecting frame; 6. Connecting assembly; 6-1. Inner nozzle; 6-2. Powder blowing pipe; 7. Sealing control assembly; 7-1. Connecting seat; 7-2. Control motor; 7-3. Sealing plate; 8. Scraper. Detailed Implementation
[0030] The present disclosure will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present disclosure and are not intended to limit the scope of the disclosure.
[0031] To keep the drawings concise, each drawing only schematically shows the parts relevant to the disclosure; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of components with the same structure or function is schematically shown, or only one is labeled. In this document, "one" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."
[0032] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linkage" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this disclosure based on the specific circumstances.
[0033] In this disclosure, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.
[0034] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this disclosure.
[0035] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.
[0036] like Figures 1-4 As shown, a feeding mechanism for a high-precision powder material weighing and packaging machine according to an embodiment of this disclosure is provided, comprising:
[0037] A conical barrel 1 and an inlet pipe 2, wherein the inlet pipe 2 is disposed on the outer wall of the conical barrel 1;
[0038] Connection component 6, wherein the connection component 6 is disposed at one end of the inlet pipe 2;
[0039] The drive motor 3 and the anti-adhesion component 5 are provided. The drive motor 3 is installed on the top of the conical barrel 1, and the anti-adhesion component 5 is disposed inside the conical barrel 1.
[0040] The docking pipe 4 and the sealing control component 7 are provided, wherein the docking pipe 4 is disposed at the bottom of the conical barrel 1 and the sealing control component 7 is disposed in the docking pipe 4;
[0041] The anti-adhesion component 5 includes an inner ring layer 5-1, which is disposed at the lower end of the inner wall of the conical barrel 1. A slidable cover 5-2 is connected to the inner ring layer 5-1. A spiral layer 5-3 is disposed on the outer wall of the slidable cover 5-2. A blocking cover 5-4 is disposed at the top of the inner wall of the conical barrel 1. A connecting frame 5-5 is disposed on the inner wall of the blocking cover 5-4. The connecting frame 5-5 is connected to the output end of the drive motor 3. The slidable cover 5-2 is rotatably and sealingly connected to the output end of the drive motor 3.
[0042] In some examples, an anti-adhesion component 5 is designed to prevent powdery materials from adhering to the inner wall of the conical barrel 1 and to ensure that they fall towards the top center. This component is supported by the inner ring layer 5-1 at the lower end of the inner wall of the conical barrel 1. The outer wall of the slidingly fitted shroud 5-2 in the inner ring layer 5-1 is provided with a spiral layer 5-3. When the drive motor 3 drives the connecting frame 5-5 to rotate, the shroud 5-2 rotates synchronously. The spiral layer 5-3 generates an upward thrust on the powder on the inner wall, causing it to move upward along the conical surface and gather towards the top center, thus preventing the material from accumulating on the conical wall. The blocking cover 5-4 at the top of the conical barrel 1 is rotatably connected to the output end of the drive motor 3 through a sealing structure. When the motor rotates, it forms airflow disturbance, further preventing the powder from adhering to the top of the barrel, while guiding the material to fall evenly from the top center, ensuring the continuity and stability of the feeding.
[0043] Through the rotational pushing, airflow disturbance, and central gathering design of the diaphragm 5-2 and the spiral layer 5-3, the anti-adhesion component 5 achieves the anti-adhesion function of the powder and causes it to fall towards the top center.
[0044] like Figures 1-4 As shown in the figure, the connecting component 6 in this embodiment includes an inner nozzle 6-1, which is disposed at the lower end of the inlet pipe 2. A powder blowing pipe 6-2 is fitted at the lower end of the inner nozzle 6-1, and the powder blowing pipe 6-2 is fixedly connected to the inlet pipe 2 by screws.
[0045] In some examples, a connection component 6 is designed to connect with the powder blowing and feeding equipment. This component uses the inner sleeve 6-1 at the lower end of the inlet pipe 2 as the connection interface. The powder blowing pipe 6-2 is fitted onto the lower end of the inner sleeve 6-1. The powder blowing pipe 6-2 is fixedly connected to the inlet pipe 2 by screws to form a sealed powder conveying channel. The inner diameter of the inner sleeve 6-1 matches the outer diameter of the powder blowing pipe 6-2 to ensure that the powder does not leak during the conveying process. At the same time, the screw fixing structure facilitates the installation and disassembly of the powder blowing pipe 6-2, making it convenient for equipment maintenance and replacement.
[0046] By connecting the inner nozzle 6-1 to the powder blowing pipe 6-2 with screws, the connecting component 6 achieves a reliable connection with the powder blowing and feeding equipment, ensuring that the powder can smoothly enter the conical barrel 1.
[0047] like Figures 1-4 As shown in the figure, the closed control component 7 in this embodiment includes a connecting seat 7-1, which is disposed on the outer wall of the docking pipe 4. A control motor 7-2 is installed on the connecting seat 7-1, and a sealing plate 7-3 is provided at the output end of the control motor 7-2.
[0048] In some examples, a closed control component 7 is designed to control the feeding switch of powdered materials. This component is mounted on the connecting seat 7-1 on the outer wall of the connecting pipe 4. The control motor 7-2 installed on the connecting seat 7-1 can drive the sealing plate 7-3 to rotate, thereby controlling the opening and closing of the connecting pipe 4. When feeding is required, the control motor 7-2 drives the sealing plate 7-3 to rotate 90° to the open position, and the powder falls through the connecting pipe 4. When feeding needs to be stopped, the control motor 7-2 drives the sealing plate 7-3 to rotate to the closed position, and the sealing plate 7-3 fits against the inner wall of the connecting pipe 4 to prevent the powder from falling further.
[0049] By controlling the rotation of the sealing plate 7-3 via the motor 7-2, the sealing control component 7 achieves precise control of the feeding switch, meeting the control requirements for feeding timing and quantity during the weighing and packaging process.
[0050] For example, such as Figure 2 As shown, the powder blowing tube 6-2 is a deformation-resistant and bendable vacuum rubber tube.
[0051] In some examples, the vacuum rubber tube can be bent at any angle without folding, making the feeding process more stable.
[0052] For example, such as Figure 2 As shown, the top of the conical barrel 1 has an arc-shaped transition structure surface.
[0053] In some examples, the curved transition, combined with the inclined angle of the outer wall of the diaphragm 5-2, allows the upward-flowing powder to gather at the center and fall downward.
[0054] For example, such as Figure 2 As shown, a number of scraper rods 8 are provided at the bottom of the conical barrel 1, and the scraper rods 8 are attached to the inner wall of the cover 5-2.
[0055] In some examples, the inner wall of the septum 5-2 can be continuously scraped by the scraper 8, further reducing adhesion and residue.
[0056] For example, such as Figure 2 As shown, the inlet pipe 2 interface is located above the inner ring layer 5-1, and the inlet pipe 2 has an overall L-shaped structure.
[0057] In some examples, a bending structure is used to make the inlet pipe 2 face downwards for easy installation and connection.
[0058] In actual use: The conical barrel 1 is fixed, the inlet pipe 2 is installed on the outer wall of the conical barrel 1, the inner sleeve 6-1 of the connecting assembly 6 is connected to the lower end of the inlet pipe 2, the powder blowing pipe 6-2 is fitted onto the lower end of the inner sleeve 6-1 and fixed with screws, the drive motor 3 is installed on the top of the conical barrel 1, the inner ring layer 5-1 of the anti-adhesion assembly 5 is fixed to the lower end of the inner wall of the conical barrel 1, the slidable cover 5-2 is slidably fitted in the inner ring layer 5-1, the spiral layer 5-3 is set on the outer wall of the slid cover 5-2, and the connecting bracket 5-5 connects the slid cover 5-2 to the drive motor. The output end of machine 3 is connected, the docking pipe 4 is installed at the bottom of the conical barrel 1, the connecting seat 7-1 of the closed control component 7 is fixed on the outer wall of the docking pipe 4, the control motor 7-2 and the sealing plate 7-3 are installed on the connecting seat 7-1, the powder blowing pipe 6-2 is connected to the feeding equipment, the drive motor 3 drives the diaphragm 5-2 and the spiral layer 5-3 to rotate, the powder enters the conical barrel 1 from the inlet pipe 2, the spiral layer 5-3 pushes the powder to prevent accumulation, and the closed control component 7 controls the feeding switch through the control motor 7-2 and the sealing plate 7-3.
[0059] It should be noted that the above embodiments are only used to illustrate the technical solutions of this disclosure and are not intended to limit it. Although this disclosure has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this disclosure without departing from the spirit and scope of the technical solutions of this disclosure, and all such modifications and substitutions should be covered within the scope of the claims of this disclosure.
Claims
1. A feeding mechanism for a high-precision powder material weighing and packaging machine, characterized in that, include: A conical barrel (1) and an inlet pipe (2), wherein the inlet pipe (2) is disposed on the outer wall of the conical barrel (1); A connecting component (6) is disposed at one end of the inlet pipe (2); The drive motor (3) and the anti-adhesion component (5) are provided inside the conical barrel (1). A docking pipe (4) and a sealing control component (7) are provided, wherein the docking pipe (4) is disposed at the bottom of the conical barrel (1) and the sealing control component (7) is disposed in the docking pipe (4); The anti-adhesion component (5) includes an inner ring layer (5-1), which is disposed at the lower end of the inner wall of the conical barrel (1). A slidable cover (5-2) is connected in the inner ring layer (5-1), and a spiral layer (5-3) is disposed on the outer wall of the slidable cover (5-2).
2. The feeding mechanism for a high-precision powder material weighing and packaging machine according to claim 1, characterized in that, The conical barrel (1) is provided with a baffle (5-4) at the top, and a connecting frame (5-5) is provided on the inner wall of the baffle (5-4). The connecting frame (5-5) is connected to the output end of the drive motor (3), and the diaphragm (5-2) is sealed and rotated and connected to the output end of the drive motor (3).
3. The feeding mechanism for a high-precision powder material weighing and packaging machine according to claim 1, characterized in that, The connecting component (6) includes an inner nozzle (6-1), which is located at the lower end of the inlet tube (2). A powder blowing tube (6-2) is fitted onto the lower end of the inner nozzle (6-1), and the powder blowing tube (6-2) is fixedly connected to the inlet tube (2) by screws.
4. The feeding mechanism for a high-precision powder material weighing and packaging machine according to claim 1, characterized in that, The closed control assembly (7) includes a connecting seat (7-1), which is disposed on the outer wall of the docking pipe (4). A control motor (7-2) is installed on the connecting seat (7-1), and a sealing plate (7-3) is provided at the output end of the control motor (7-2).
5. The feeding mechanism for a high-precision powder material weighing and packaging machine according to claim 3, characterized in that, The powder blowing pipe (6-2) is made of a deformation-resistant and flexible vacuum rubber tube.
6. The feeding mechanism for a high-precision powder material weighing and packaging machine according to claim 1, characterized in that, The top of the conical barrel (1) has an arc-shaped transition structure surface.
7. The feeding mechanism for a high-precision powder material weighing and packaging machine according to claim 1, characterized in that, The conical barrel (1) has several scraper rods (8) at its bottom, and the scraper rods (8) are attached to the inner wall of the cover (5-2).
8. The feeding mechanism for a high-precision powder material weighing and packaging machine according to claim 1, characterized in that, The inlet tube (2) is located above the inner ring layer (5-1), and the inlet tube (2) has an overall L-shaped structure.