A filling head for low-density lightweight powders

Abstract

This utility model discloses a filling head for low-density lightweight powders, including a mixer, a filling hopper, a hinged cover, a pneumatic pump, and a linkage mechanism. The mixer is located at the upper opening of the filling hopper, and a spiral push rod is provided at the output end of the mixer, which is vertically positioned inside the filling hopper. A hinged cover is provided at the lower outlet of the filling hopper, and the cover consists of two symmetrically arranged half-covers. A telescopic rod is provided at the output end of the pneumatic pump. The upper ends of the two half-covers are respectively connected to the ends of the telescopic rod via a linkage mechanism. The pneumatic pump drives the telescopic rod to extend and retract, and the telescopic rod, through the linkage mechanism, drives the two half-covers of the hinged cover to open and close. This filling head for low-density lightweight powders can solve problems such as powder scattering, inaccurate metering, and leakage during the filling process of ultra-lightweight powders such as talc, silica powder, and mica powder.

Description

Technical Field

[0001] This utility model belongs to the field of cosmetic filling technology, and relates to a filling head for low-density lightweight loose powder, which is suitable for filling ultra-lightweight loose powder materials such as low-density talc powder, silicon powder, and mica powder. Background Technology

[0002] Loose powders typically have a low bulk density; various antitumor active ingredients, whether natural, synthetic, semi-synthetic, or obtained through biotechnology, may have a bulk density of less than 0.5 g / cm³. 3 Even below 0.02 g / cm³ 3 This means that loose powder of the same weight has a larger volume, making it more prone to electrostatic adsorption, leading to problems such as clumping and sticking to the sides of the container, which increases the difficulty of the filling process.

[0003] Conventional powder filling equipment typically uses only a screw pusher for feeding and filling. For low-density, loose powders, due to their light weight and good flowability, traditional powder filling heads are prone to problems such as powder scattering, inaccurate metering, and leakage when handling low-density, lightweight loose powders, exhibiting the following significant drawbacks:

[0004] (1) Severe dust dispersion: The powder is lightweight and easily suspended and drifted during the filling process due to airflow disturbance, causing environmental pollution and material loss;

[0005] (2) Insufficient filling accuracy: The flowability of powder is significantly affected by static electricity and humidity. Conventional gravity filling is prone to bridging and voids, leading to inaccurate measurement.

[0006] (3) Limited efficiency: In order to suppress powder flying, the filling speed is forced to be reduced, which restricts the increase of production capacity.

[0007] There is a lack of filling heads on the market specifically designed for low-density, lightweight powders. Although attempts have been made to use negative pressure dust collection or vibration assistance, it is difficult to balance the requirements of precision, speed and zero pollution. Utility Model Content

[0008] The purpose of this invention is to overcome the shortcomings of the prior art and provide a filling head for low-density lightweight loose powders, which can solve the problems of powder flying, inaccurate metering, and leakage of ultra-lightweight loose powders such as low-density talc, silicon powder, and mica powder during the filling process.

[0009] The technical solution to achieve the above objective is: a filling head for low-density lightweight powder, comprising a mixer, a filling hopper, an opening and closing cap, a pneumatic pump, and a linkage mechanism, wherein:

[0010] The mixer is located at the upper opening of the filling hopper, and the output end of the mixer is provided with a spiral push rod, which is vertically arranged inside the filling hopper.

[0011] The lower outlet of the filling hopper is provided with an opening and closing cover, which is composed of two half-covers arranged symmetrically on an axis.

[0012] The pneumatic pump is located outside the filling hopper, and the output end of the pneumatic pump is equipped with a telescopic rod.

[0013] The upper ends of the two half-covers are respectively connected to the end of the telescopic rod via a linkage mechanism;

[0014] The pneumatic pump drives the telescopic rod to extend and retract, and the telescopic rod drives the two halves of the cover to open and close through the linkage mechanism.

[0015] The above-mentioned filling head for low-density lightweight powder, wherein the linkage mechanism includes a first link, a second link, and a rotating shaft, one end of the first link is provided with a rotating shaft mounting hole, and the rotating shaft is sleeved in the rotating shaft mounting hole; the first link rotates around the rotating shaft;

[0016] The other end of the first link is hinged to one end of the second link;

[0017] The end of the telescopic rod is connected to the first connecting rod;

[0018] One of the half-covers is connected to the first link via a third link;

[0019] The other half of the cover is connected to the other end of the second link via the fourth link.

[0020] The above-mentioned filling head for low-density lightweight powder, wherein the mixer and the pneumatic pump are connected to an external controller.

[0021] This utility model relates to a filling head for low-density lightweight loose powders. It is specially designed for the characteristics of low-density lightweight loose powders. In addition to the conventional filling mechanism, a filling head that can be opened and closed is designed to solve problems such as powder flying, inaccurate metering, and leakage during the filling process. It improves filling accuracy, controls dust, significantly optimizes production capacity, and broadens applicability, making it suitable for ultra-lightweight materials such as low-density talc powder, silicon powder, and mica powder. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the filling head for low-density lightweight powder of this utility model (telescopic rod extended state);

[0023] Figure 2 This is a diagram showing the working state of the filling head for low-density lightweight powder of this utility model (telescopic rod retracted state). Detailed Implementation

[0024] To enable those skilled in the art to better understand the technical solution of this utility model, its specific embodiments are described in detail below with reference to the accompanying drawings:

[0025] Please see Figure 1 and Figure 2 The preferred embodiment of this utility model is a filling head for low-density lightweight powder, which includes a mixer 1, a filling hopper 8, an opening and closing cover 3, a pneumatic pump 4, and a linkage mechanism 6.

[0026] A mixer 1 is located at the upper opening of the filling hopper 8. A spiral pusher 2 is installed at the output end of the mixer 1, vertically positioned inside the filling hopper 8. A hinged cover 3 is installed at the lower outlet of the filling hopper 8. The hinged cover 3 consists of two symmetrically arranged half-covers 31, which fit over the lower outlet of the filling hopper 8. A pneumatic pump 4 is located outside the filling hopper 8, and a telescopic rod 5 is installed at its output end. The upper ends of the two half-covers 31 are connected to the ends of the telescopic rod 5 via a linkage mechanism 6. The pneumatic pump 4 drives the telescopic rod 5 to extend and retract, and the telescopic rod 5, through the linkage mechanism 6, drives the two half-covers 31 of the hinged cover 3 to open and close.

[0027] Specifically, the linkage mechanism 6 includes a first link 61, a second link 62, and a rotating shaft 63. One end of the first link 61 has a rotating shaft mounting hole, and the rotating shaft 63 is fitted into the rotating shaft mounting hole. The first link 61 rotates around the rotating shaft 62. The other end of the first link 61 is hinged to one end of the second link 62. The end of the telescopic rod 5 is connected to the first link 61. One half-cover 31 is connected to the first link 61 through a third link 64. The other half-cover 31 is connected to the other end of the second link 62 through a fourth link 65.

[0028] The pneumatic pump 4 drives the telescopic rod 5 to extend and retract. The telescopic rod 5 drives the first connecting rod 61 to rotate clockwise or counterclockwise around the rotating shaft 62. The first connecting rod 61 drives the second connecting rod 62 to move upward or downward, thereby driving the third connecting rod 64 and the fourth connecting rod 65 to move upward or downward, driving the opening and closing cover 3 to open or close.

[0029] This utility model relates to a filling head for low-density lightweight powder. In use, a mixer 1 and a pneumatic pump 4 are connected to an external controller. The low-density lightweight powder is placed in the filling hopper 8. The controller allows adjustment of the mixer 1's rotation speed and the advance time for each filling operation to meet the filling volume requirements, preparing for the filling operation. At this time, the pneumatic pump 4 is turned off, the telescopic rod 5 is extended, the first connecting rod 61 and the second connecting rod 62 are pressed down, and the opening / closing cover 3 is closed.

[0030] After filling begins, the controller activates the mixer 1 and pneumatic pump 4. As the mixer 1 operates, the screw pusher 2 pushes the loose powder downwards. At this time, the pneumatic pump 4 starts, the telescopic rod 5 begins to shorten, and the first connecting rod 61 rises clockwise along the rotating shaft 63, causing the second connecting rod 62 to rise, and simultaneously causing the third connecting rod 64 and the fourth connecting rod 65 to rise, thereby opening the opening and closing cover 3 and initiating the material feeding and filling process. As the set time ends, the mixer 1 stops rotating, the screw pusher 2 stops pushing the material, the telescopic rod 5 returns to its extended state, and the first connecting rod 61 presses down counterclockwise along the rotating shaft 7, causing the second connecting rod 62 to press down, and simultaneously causing the third connecting rod 64 and the fourth connecting rod 65 to press down, thereby closing the opening and closing cover 3 and completing one filling cycle. This cyclical filling process solves problems such as powder flying, inaccurate metering, and leakage during the filling process.

[0031] In summary, the filling head of this utility model for low-density lightweight powders is suitable for filling ultra-lightweight powders such as low-density talc, silica powder, and mica powder, and solves problems such as powder flying, inaccurate metering, and leakage during the filling process of these low-density lightweight powders.

[0032] Those skilled in the art should recognize that the above embodiments are only used to illustrate the present utility model and are not intended to limit the present utility model. Any changes or modifications to the above embodiments within the scope of the essential spirit of the present utility model will fall within the scope of the claims of the present utility model.

Claims

1. A filling head for low-density, lightweight, bulk powders, characterized in that, Includes a mixer, filling hopper, opening and closing cover, pneumatic pump, and linkage mechanism, among which: The mixer is located at the upper opening of the filling hopper, and the output end of the mixer is equipped with a spiral push rod, which is vertically arranged inside the filling hopper. The lower outlet of the filling hopper is provided with an opening and closing cover, which is composed of two half-covers arranged symmetrically on an axis. The pneumatic pump is located outside the filling hopper, and the output end of the pneumatic pump is equipped with a telescopic rod. The upper ends of the two half-covers are respectively connected to the end of the telescopic rod via a linkage mechanism; The pneumatic pump drives the telescopic rod to extend and retract, and the telescopic rod drives the two halves of the cover to open and close through the linkage mechanism.

2. A filling head for low density, lightweight, bulk powders according to claim 1, characterised in that, The linkage mechanism includes a first link, a second link, and a rotating shaft. One end of the first link has a rotating shaft mounting hole, and the rotating shaft is fitted into the rotating shaft mounting hole. The first link rotates around the rotating shaft. The other end of the first link is hinged to one end of the second link; The end of the telescopic rod is connected to the first connecting rod; One of the half-covers is connected to the first link via a third link; The other half of the cover is connected to the other end of the second link via the fourth link.

3. A filling head for low density, lightweight, free-flowing powders according to claim 1, characterized in that, The mixer and pneumatic pump are connected to an external controller.

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