A powder adding device

Abstract

The utility model discloses a kind of powder adding devices, including shell, the top of the shell is equipped with isosceles trapezoidal groove, the inner bottom of the isosceles trapezoidal groove is equipped with arc groove, the arc groove both sides inner wall and isosceles trapezoidal groove both sides inner wall jointly seal and fit with rotary drum, the outer surface of the rotary drum is evenly equipped with multiple powder trapezoidal groove, adjacent two powder trapezoidal groove jointly are equipped with powder adding through groove;Rotary assembly is jointly installed between the rotary drum and shell.In the utility model, by the ingenious cooperation of rotary drum, powder trapezoidal groove and arc groove, the complex spiral conveying and recovery mechanism is discarded, and the structure is compact, which fundamentally solves the problems of complex structure, powder compaction, and inaccurate quantification in traditional devices.

Description

Technical Field

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

[0002] In the wire processing, the main functions of adding powder (usually referring to the addition of talc) are lubrication, isolation, and insulation. Specifically, talc can reduce friction between wire cores and between the wire core and the outer sheath, preventing adhesion and avoiding wear or cracking of the wire core insulation layer during production and installation. At the same time, it can also improve the insulation performance, heat resistance, and mechanical strength of the cable, and improve processing fluidity, ensuring a stable and reliable product structure.

[0003] The prior art patent publication number CN221551594U describes a powder-adding device for wire processing. On the one hand, it can continuously transport talc powder inside the box to the top of the partition and form a pile, so that the wire can be fully powdered. On the other hand, it can collect excess powder on the wire and redirect it back into the box.

[0004] However, the device still has obvious defects: it relies on complex mechanical transmission (such as bidirectional spiral blades, gear sets, augers, etc.) to lift and recycle powder, resulting in a complex overall structure, high manufacturing cost and many failure points; secondly, the device needs to continuously circulate a large amount of powder to form a pile, which can easily cause the powder to be compacted or even agglomerated by the high-speed spiral blades, thus affecting the uniformity of powder addition.

[0005] Therefore, further improvements are needed, and to this end, we have proposed a powder adding device. Utility Model Content

[0006] The purpose of this invention is to address the shortcomings of existing technologies by proposing a powder-adding device.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: a powder adding device, including a housing, an isosceles trapezoidal groove on the top of the housing, an arc-shaped groove at the bottom of the isosceles trapezoidal groove, a rotating cylinder sealed to the inner walls of the arc-shaped groove and the inner walls of the isosceles trapezoidal groove, a plurality of powder trapezoidal grooves evenly provided on the outer surface of the rotating cylinder, and a powder adding channel provided between two adjacent powder trapezoidal grooves;

[0008] A rotating assembly is installed between the rotating drum and the machine housing;

[0009] A flexible powder scraping component is detachably fixed to one side of the top of the housing;

[0010] The top of the housing has two symmetrical guide grooves, which are interconnected with the outer wall of the housing and the inner wall of the isosceles trapezoidal groove. The inner walls on both sides of the two guide grooves are rotatably connected to support rollers.

[0011] Furthermore, both ends of the rotating drum are fixedly connected with annular sealing gaskets, and the annular sealing gaskets are sealed and fitted to the inner wall of the adjacent side of the arc-shaped groove and the isosceles trapezoidal groove. This design effectively prevents talc powder from leaking from the gaps between the two ends of the rotating drum and the machine casing, reducing material loss.

[0012] Furthermore, each of the powder-adding channels includes a U-shaped channel, which is formed on the outer wall of the rotating drum and communicates with the inner walls of two adjacent powder trapezoidal channels. Brushes are fixedly connected to the inner walls on both sides of the U-shaped channel. This structure allows the wire to smoothly pass through the U-shaped channel into the powder trapezoidal channel, while the brushes on both sides can gently sweep away excess powder from the surface of the wire and guide the powder back down.

[0013] Furthermore, the rotating assembly includes a motor, which is fixedly mounted on the bottom of the housing. A small pulley is fixedly connected to the drive end of the motor, and a large pulley is provided above the small pulley. A V-belt is tensioned and sleeved together by the small pulley and the large pulley. A support shaft is fixedly connected to one end of the large pulley, and the support shaft passes through the housing. The rotating drum is fixedly sleeved on the outer surface of the support shaft. The belt drive method is adopted, which has a simple structure, smooth transmission, and can achieve speed reduction and torque increase by changing the speed ratio of the large and small pulleys.

[0014] Furthermore, bearing seats are fixedly connected to both outer walls of the housing, and the inner ring of the bearing built into the bearing seat is fixedly sleeved on the outer surface of the support shaft. The bearing seats provide stable and low-friction rotational support for the support shaft, ensuring the concentricity and stability of the drum during rotation.

[0015] Furthermore, the flexible powder scraping component includes a mounting frame, and the mounting frame is detachably fixedly connected to one side edge of the top of the housing. An inner tube brush is fixedly connected to the bottom of the mounting frame. The inner tube brush serves as a flexible scraping component, which can effectively scrape off excess powder while avoiding scratching the surface of the wire.

[0016] The beneficial effects of this utility model are:

[0017] In use, this utility model, through the ingenious combination of a rotating drum, a trapezoidal trough for powder, and an arc-shaped trough, eliminates the need for a complex spiral conveying and recycling mechanism. It directly achieves quantitative grasping and coating of powder by rotating the drum. The structure is compact and fundamentally solves the problems of complex structure, easy compaction of powder, and inaccurate quantitative measurement in traditional devices. At the same time, the flexible scraping component and sealing design ensure uniform powder addition and no dust leakage, significantly improving production efficiency and environmental friendliness. Attached Figure Description

[0018] To more clearly illustrate the technical solution of this utility model, the drawings used in the description of the specific 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.

[0019] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention;

[0020] Figure 2 This is a schematic diagram of the three-dimensional structure of the rotating drum of this utility model;

[0021] Figure 3 For the present utility model Figure 1 Enlarged view of point A in the middle.

[0022] The attached figures are labeled as follows:

[0023] 1. Casing; 2. Bearing seat; 3. Arc groove; 4. Powder trapezoidal groove; 5. Isosceles trapezoidal groove; 6. Motor; 7. V-belt; 8. Small pulley; 9. Large pulley; 10. Rotary drum; 11. Brush; 12. Annular sealing gasket; 13. Support shaft; 14. U-shaped groove; 15. Mounting bracket; 16. Support roller; 17. Inner tube brush. Detailed Implementation

[0024] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0025] like Figures 1-3As shown, a powder adding device is disclosed, comprising a housing 1. An isosceles trapezoidal groove 5 is formed at the top of the housing 1. An arc-shaped groove 3 is formed at the bottom inner side of the isosceles trapezoidal groove 5. A rotating cylinder 10 is sealed to both sides of the inner walls of the arc-shaped groove 3 and the inner walls of the isosceles trapezoidal groove 5. An annular sealing gasket 12 is fixedly connected to both ends of the rotating cylinder 10, and the annular sealing gasket 12 is sealed to the adjacent inner wall of the arc-shaped groove 3 and the isosceles trapezoidal groove 5. The annular sealing gasket 12 is made of wear-resistant, highly elastic polyurethane material. The powder is fixed to both ends of the rotating drum 10 by adhesive. Its core effect is dynamic sealing. Multiple powder trapezoidal grooves 4 are evenly opened on the outer surface of the rotating drum 10. A powder feeding channel is opened between two adjacent powder trapezoidal grooves 4. Each powder feeding channel includes a U-shaped groove 14. The U-shaped groove 14 is opened on the outer wall of the rotating drum 10 and communicates with the inner wall of the two adjacent powder trapezoidal grooves 4. Brushes 11 are fixedly connected to the inner walls on both sides of the U-shaped groove 14. The brushes 11 are made of soft nylon.

[0026] A rotating assembly is installed between the drum 10 and the housing 1. The rotating assembly includes a motor 6, which is fixedly installed at the bottom of the housing 1. A small pulley 8 is fixedly connected to the drive end of the motor 6. A large pulley 9 is provided above the small pulley 8. A V-belt 7 is tensioned and sleeved together by the small pulley 8 and the large pulley 9. A support shaft 13 is fixedly connected to one end of the large pulley 9. The support shaft 13 passes through the housing 1. The drum 10 is fixedly sleeved on the outer surface of the support shaft 13. Bearing seats 2 are fixedly connected to both outer walls of the housing 1. The inner ring of the bearing inside the bearing seat 2 is fixedly sleeved on the outer surface of the support shaft 13. The motor 6 is matched with a corresponding controller for controlling the operation of the motor 6. The controller can be installed on one outer wall of the housing 1.

[0027] A flexible powder scraping component is detachably fixed to one side of the top of the housing 1. The flexible powder scraping component includes a mounting bracket 15, and the mounting bracket 15 is detachably fixed to one side of the top of the housing 1. The mounting bracket 15 is made of plastic and is detachably fixed to one side of the top of the housing 1 by screws for easy maintenance. An internally implanted tube brush 17 is fixedly connected to the bottom of the mounting bracket 15. The internally implanted tube brush 17 is composed of flexible brush filaments (such as nylon filaments) densely implanted in a metal cylinder.

[0028] Two guide grooves are symmetrically opened on the top of the housing 1, and the guide grooves are interconnected with the outer wall of the housing 1 and the inner wall of the isosceles trapezoidal groove 5. The inner walls on both sides of the two guide grooves are rotatably connected to the support rollers 16.

[0029] Working principle: First, talcum powder is concentrated in the inner bottom area of ​​the arc-shaped groove 3 and the isosceles trapezoidal groove 5.

[0030] The wire is then passed through one side support roller 16, then through the rotating drum 10 (entering the powder trapezoidal groove 4 at the top of the rotating drum 10 through the U-shaped groove 14), then through the inner planting brush 17, and finally discharged through the other side support roller 16.

[0031] Next, the motor 6 is started, and the transmission system consisting of the small pulley 8, the V-belt 7 and the large pulley 9 drives the support shaft 13 to rotate. The support shaft 13 drives the rotating drum 10 to rotate at a constant speed. During the rotation, the powder trapezoidal groove 4 on the outer surface of the rotating drum 10 is immersed in and scrapes the talcum powder in the arc groove 3, so that each powder trapezoidal groove 4 is quantitatively filled. Therefore, when the wire passes through the top powder trapezoidal groove 4, it will pass through the talcum powder and the talcum powder will be coated on the surface of the wire. When the wire passes through the inner planting tube brush 17, the excess talcum powder is gently scraped off.

[0032] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to any specific implementation. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A powder adding device comprising a casing (1), characterized in that: The top of the housing (1) is provided with an isosceles trapezoidal groove (5), and the bottom of the isosceles trapezoidal groove (5) is provided with an arc groove (3). The inner walls of the arc groove (3) and the inner walls of the isosceles trapezoidal groove (5) are sealed together with a rotating cylinder (10). The outer surface of the rotating cylinder (10) is provided with a plurality of powder trapezoidal grooves (4), and a powder feeding channel is provided between two adjacent powder trapezoidal grooves (4). A rotating assembly is installed between the rotating drum (10) and the housing (1); A flexible powder scraping component is detachably fixed to one side of the top of the housing (1); The top of the housing (1) has two symmetrical guide grooves, and the guide grooves are interconnected with the outer wall of the housing (1) and the inner wall of the isosceles trapezoidal groove (5). The inner walls on both sides of the two guide grooves are rotatably connected to support rollers (16).

2. A powder adding device according to claim 1, characterized in that: Both ends of the rotating cylinder (10) are fixedly connected with annular sealing gaskets (12), and the annular sealing gaskets (12) are sealed and fitted to the inner wall of the adjacent side of the arc groove (3) and the isosceles trapezoidal groove (5).

3. A powder adding device according to claim 1, characterized in that: Each of the powder feeding channels includes a U-shaped channel (14), and the U-shaped channel (14) is opened on the outer wall of the rotating drum (10) and communicates with the inner walls of two adjacent powder trapezoidal channels (4). Brushes (11) are fixedly connected to the inner walls on both sides of the U-shaped channel (14).

4. A powder adding device according to claim 1, characterized in that: The rotating assembly includes a motor (6), which is fixedly installed at the bottom of the housing (1). A small pulley (8) is fixedly connected to the drive end of the motor (6). A large pulley (9) is provided above the small pulley (8). The small pulley (8) and the large pulley (9) are tensioned together by a triangular belt (7). A support shaft (13) is fixedly connected to one end of the large pulley (9). The support shaft (13) passes through the housing (1), and the rotating drum (10) is fixedly sleeved on the outer surface of the support shaft (13).

5. A powder adding device according to claim 4, characterized in that: The outer walls on both sides of the housing (1) are fixedly connected with bearing seats (2), and the inner ring of the bearing built into the bearing seat (2) is fixedly sleeved on the outer surface of the support shaft (13).

6. A powder adding device according to claim 1, characterized in that: The flexible powder scraping assembly includes a mounting frame (15), and the mounting frame (15) is detachably fixedly connected to one side edge of the top of the housing (1). An inner tube brush (17) is fixedly connected to the bottom of the mounting frame (15).

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