A gravity sensing powdering device

By controlling the amount of powder applied using a gravity-sensing powder application device, the problems of uneven powder application and short lifespan during the heat transfer process of white ink hot stamping are solved, achieving precise powder application and a long device lifespan.

CN224447205UActive Publication Date: 2026-07-03GUANGZHOU LONGLUO ELECTRONIC TECHNOLOGY CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
GUANGZHOU LONGLUO ELECTRONIC TECHNOLOGY CO LTD
Filing Date
2025-08-08
Publication Date
2026-07-03

AI Technical Summary

Technical Problem

Existing powder-dispensing machines suffer from uneven powder application and short lifespan during white ink heat transfer printing, leading to powder accumulation and frequent manual collection.

Method used

Design a gravity-sensing powder-spreading device that uses a microswitch and a pressure spring to sense the weight of the hot melt powder and control the action of the powder-spreading motor to achieve precise control of the amount of powder spread.

Benefits of technology

It reduces powder falling and accumulating, extends the service life of the device, and reduces the number of manual recycling operations.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a powder shaking machine technical field, specifically disclose a gravity response powder scattering device, including the powder shaking machine body, be provided with gravity bin and powder scattering bin on the powder shaking machine body, the powder scattering bin is located the top of gravity bin, be provided with micro -switch and a plurality of pressure spring in the powder shaking machine body, micro -switch and pressure spring all with gravity bin are opposite, be provided with powder scattering motor and powder scattering board in the powder scattering bin, the powder scattering motor passes through transmission shaft and the powder scattering board rotation is connected, micro -switch with powder scattering motor electric connection. The utility model discloses by setting micro -switch according to the weight of hot melt powder on the weight bin sends normally open signal or normally closed signal to powder scattering motor, by the powder scattering motor control powder scattering board's powder scattering action, and then realize the control of powder scattering amount, reach the purpose that powder drop is reduced, thereby reduce artificial recovery powder frequency, avoid powder to accumulate too much, prolong the life.
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Description

Technical Field

[0001] This utility model relates to the field of powder dispensing technology, and in particular to a gravity-sensing powder dispensing device. Background Technology

[0002] In the process of white ink heat transfer printing, in order to ensure that the white ink workpiece pattern is evenly powdered and that powder is applied efficiently, powder shaking machines are widely used in the white ink heat transfer field. Powder shaking machines can apply powder evenly and efficiently to the white ink pattern. In the traditional powder application process, hot melt powder falls onto the heat transfer film through the powder application bin and is then shaken by the powder shaking device. Because there are no limiting points on both sides of the heat transfer film, the hot melt powder on the film falls off too quickly. Even if limiting points are added, the hot melt powder accumulates too much on the film because the powder application bin applies powder all at once. This results in a shorter service life for the powder application device and the powder shaking device, and has disadvantages such as not being able to control the amount of powder applied and requiring more manual powder recovery. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a gravity-sensing powder spreading device in view of the above-mentioned defects of the prior art. By setting a micro switch, the device sends a normally open signal or a normally closed signal to the powder spreading motor according to the weight of the hot melt powder in the weight bin. The powder spreading motor controls the powder spreading action of the powder spreading plate, thereby controlling the amount of powder spread, reducing powder fall, reducing the number of times powder is manually collected, avoiding excessive powder accumulation, and extending the service life.

[0004] To solve the above-mentioned technical problems, the technical solution of this utility model is as follows:

[0005] A gravity-sensing powder-spreading device includes a powder-shaking machine body, on which a gravity chamber and a powder-spreading chamber are provided. The powder-spreading chamber is located above the gravity chamber. A micro switch and several pressure springs are provided inside the powder-shaking machine body. The micro switch and pressure springs abut against the gravity chamber. A powder-spreading motor and a powder-spreading plate are provided inside the powder-spreading chamber. The powder-spreading motor is rotatably connected to the powder-spreading plate through a drive shaft. The micro switch is electrically connected to the powder-spreading motor.

[0006] Preferably, a hot melt powder recovery chamber is provided below the gravity chamber.

[0007] Preferably, the body of the powder shaking machine is provided with a plurality of gravity chamber hooks, and the gravity chamber is rotatably mounted on the gravity chamber hooks.

[0008] Preferably, both the micro switch and the pressure spring abut against the back of the gravity chamber.

[0009] Preferably, when the weight of the hot melt powder on the heat transfer film in the gravity chamber reaches the set weight, the gravity chamber presses forward and downward against the micro switch and the pressure spring. The pressure spring is compressed, and the micro switch sends a normally open signal to the powder-spreading motor in the powder-spreading chamber. The powder-spreading motor stops rotating, and the drive shaft drives the powder-spreading plate to stop rotating. The powder-spreading action stops, and the powder-spreading chamber stops spreading powder.

[0010] Preferably, when the weight of the hot melt powder on the heat transfer film in the gravity chamber is less than the set weight, the pressure spring rebounds, the gravity chamber returns to its initial position, the micro switch resets and sends a normally closed signal to the powder-spreading motor in the powder-spreading chamber, the powder-spreading motor rotates, the transmission shaft drives the powder-spreading plate to rotate, thereby starting the powder-spreading action, and the powder-spreading chamber continues to spread powder.

[0011] The gravity-sensing powder-spreading device provided by this utility model, using the above technical solution, has the following beneficial effects: The powder-shaking machine body of the gravity-sensing powder-spreading device is equipped with a gravity chamber and a powder-spreading chamber. The powder-spreading chamber is located above the gravity chamber. The powder-shaking machine body is equipped with a micro switch and several pressure springs, all of which abut against the gravity chamber. The powder-spreading chamber is equipped with a powder-spreading motor and a powder-spreading plate. The powder-spreading motor is rotatably connected to the powder-spreading plate via a transmission shaft. The micro switch is electrically connected to the powder-spreading motor. By setting the micro switch to send a normally open or normally closed signal to the powder-spreading motor according to the weight of the hot-melt powder in the gravity chamber, the powder-spreading motor controls the powder-spreading action of the powder-spreading plate, thereby controlling the amount of powder spread and reducing powder fall. The device can determine whether to continue spreading powder based on the weight of the hot-melt powder, ensuring that the hot-melt powder on the heat transfer film remains at a constant weight, thus reducing the number of times powder needs to be manually collected, preventing excessive powder accumulation, and extending the service life. Attached Figure Description

[0012] Figure 1 This is an exploded view of the present invention;

[0013] Figure 2 This is a partial exploded view of the present invention;

[0014] Figure 3 This is a perspective view of the present utility model;

[0015] In the diagram, 1-powder shaking machine body, 2-gravity chamber, 3-powder spreading chamber, 4-micro switch, 5-pressure spring, 6-powder spreading motor, 7-powder spreading plate, 8-drive shaft, 9-hot melt powder recovery chamber, 10-gravity chamber hook. Detailed Implementation

[0016] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings. It should be noted that these descriptions are for the purpose of aiding understanding of this utility model, but do not constitute a limitation thereof. Furthermore, the technical features involved in the various embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0017] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, 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, and therefore should not be construed as a limitation of this utility model.

[0018] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0019] like Figure 1-3 As shown, the gravity-sensing powder-spreading device includes a powder-shaking machine body 1, on which a gravity chamber 2 and a powder-spreading chamber 3 are arranged. The powder-spreading chamber 3 is located above the gravity chamber 2. A micro switch 4 and several pressure springs 5 ​​are installed inside the powder-shaking machine body 1, and the micro switch 4 and pressure springs 5 ​​abut against the gravity chamber 2. A powder-spreading motor 6 and a powder-spreading plate 7 are installed inside the powder-spreading chamber 3. The powder-spreading motor 6 is rotatably connected to the powder-spreading plate 7 via a drive shaft 8. The micro switch 4 is electrically connected to the powder-spreading motor 6. It can be understood that this gravity-sensing powder-spreading device can determine whether to continue spreading powder based on the weight of the hot-melt powder, ensuring that the hot-melt powder on the heat transfer film always maintains a consistent weight. This has advantages such as reducing hot-melt powder fallout and reducing the number of manual collection operations.

[0020] Specifically, a hot melt powder recovery chamber 9 is provided below the gravity chamber 2, and several gravity chamber hooks 10 are provided inside the body 1 of the powder shaking machine. The gravity chamber 2 is rotatably mounted on the gravity chamber hooks 10, and the micro switch 4 and the pressure spring 5 are both abutted against the back of the gravity chamber 2. Understandably, when the weight of the hot melt powder on the heat transfer film in the gravity chamber 2 reaches the set weight, the gravity chamber 2 presses forward and downward against the micro switch 4 and the pressure spring 5. The pressure spring 5 is compressed, and the micro switch 4 sends a normally open signal to the powder-spreading motor 6 in the powder-spreading chamber 3. The powder-spreading motor 6 stops rotating, and the drive shaft 8 drives the powder-spreading plate 7 to stop rotating, thus stopping the powder-spreading action, and the powder-spreading chamber 3 stops spreading powder. When the weight of the hot melt powder on the heat transfer film in the gravity chamber 2 is less than the set weight, the pressure spring 5 rebounds, the gravity chamber 2 returns to its initial position, the micro switch 4 resets and sends a normally closed signal to the powder-spreading motor 6 in the powder-spreading chamber 3. The powder-spreading motor 6 rotates, and the drive shaft 8 drives the powder-spreading plate 7 to rotate, thereby starting the powder-spreading action, and the powder-spreading chamber 3 continues to spread powder.

[0021] Understandably, this utility model has a reasonable design and unique structure. By setting a micro switch 4 to send a normally open or normally closed signal to the powder-spreading motor 6 according to the weight of the hot melt powder on the weight bin 2, the powder-spreading motor 6 controls the powder-spreading action of the powder-spreading plate 7, thereby controlling the amount of powder spread and reducing powder fall. The weight of the hot melt powder can be used to determine whether the powder-spreading device needs to continue spreading powder, so as to ensure that the hot melt powder on the heat transfer film is always at a constant weight, thereby reducing the number of times the powder is manually collected, avoiding excessive powder accumulation, and extending the service life.

[0022] The embodiments of this utility model have been described in detail above with reference to the accompanying drawings, but this utility model is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of this utility model, and these variations still fall within the protection scope of this utility model.

Claims

1. A gravity-sensing powder-spreading device, comprising a powder-shaking machine body, wherein a gravity chamber and a powder-spreading chamber are disposed on the powder-shaking machine body, and the powder-spreading chamber is located above the gravity chamber, characterized in that: The powder-shaking machine body is equipped with a micro switch and several pressure springs. The micro switch and pressure springs are all abutted against the gravity chamber. The powder-spreading chamber is equipped with a powder-spreading motor and a powder-spreading plate. The powder-spreading motor is rotatably connected to the powder-spreading plate through a transmission shaft. The micro switch is electrically connected to the powder-spreading motor.

2. The gravity-sensing powdering device of claim 1, wherein: A hot melt powder recovery chamber is located below the gravity chamber.

3. The gravity-induced powdering device of claim 1, wherein: The powder shaking machine body is provided with several gravity chamber hooks, and the gravity chambers are rotatably mounted on the gravity chamber hooks.

4. The gravity-induced powdering device of claim 1, wherein: The micro switch and pressure spring both abut against the back of the gravity chamber.

5. The gravity-induced powdering device of claim 1, wherein: When the weight of the hot melt powder on the heat transfer film inside the gravity chamber reaches the set weight, the gravity chamber presses forward and downward against the micro switch and the pressure spring. The pressure spring is compressed, and the micro switch sends a normally open signal to the powder-spreading motor in the powder-spreading chamber. The powder-spreading motor stops rotating, and the drive shaft drives the powder-spreading plate to stop rotating. The powder-spreading action stops, and the powder-spreading chamber stops spreading powder.

6. The gravity-induced powdering device of claim 1, wherein: When the weight of the hot melt powder on the heat transfer film in the gravity chamber is less than the set weight, the pressure spring rebounds, the gravity chamber returns to its initial position, the micro switch resets and sends a normally closed signal to the powder-spreading motor in the powder-spreading chamber, the powder-spreading motor rotates, the transmission shaft drives the powder-spreading plate to rotate, thereby starting the powder-spreading action, and the powder-spreading chamber continues to spread powder.