A flocking device for uniform flocking

Abstract

This utility model relates to the field of flocking technology and discloses a flocking device for uniform flocking. The device includes a rotating brush with an insulating gear. An insulating gear has a brush ring connected inside the brush ring. The inner ring of the brush ring has multiple fixed blocks arranged in a circumferential array, and each fixed block is connected to a discharge needle. This utility model uses an external drive to cause the insulating gear to continuously rotate the brush ring and discharge needle in a circular motion, changing the high-voltage discharge point from static to dynamic. This periodically sweeps across the entire flocking area, effectively breaking the static electric field distribution pattern and eliminating the inherent strong / weak "dead zones" or "electrostatic shadows" in the electric field. This ensures that the flock fibers receive uniform electrostatic adsorption at any point on the substrate surface, solving the problem of uneven flocking caused by uneven electric field distribution in traditional flocking devices.

Description

Technical Field

[0001] This utility model relates to the field of flocking technology, specifically to a flocking device for uniform flocking. Background Technology

[0002] The flocking device precisely controls the direction and density of the flocking fibers through a high-voltage electrostatic field, thereby achieving a uniform and dense flocking effect on the workpiece surface.

[0003] In existing technologies, flocking devices generally employ fixed discharge needles or static brush structures. Their characteristic is that the position and orientation of the discharge electrodes remain unchanged during operation. By applying a high-voltage electrostatic field, the flock fibers are oriented and fly upwards to adhere to the substrate. However, the fixed discharge needles generate a static and uneven electric field distribution around them, resulting in distinct "dead zone" areas or "electrostatic shadow" effects in the electric field. This prevents the flock fibers from being evenly and vertically adsorbed onto the corresponding parts of the substrate, thus causing quality problems such as inconsistent flock layer density and mottled or striped textures on the surface. This defect is particularly prominent in wide-width or continuous flocking production. Utility Model Content

[0004] The purpose of this invention is to provide a flocking device that produces uniform flocking, thus solving the problem of dead zones in the electric field.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution: This utility model is a flocking device for uniform flocking, including a rotating brush, an insulating gear, a brush ring connected inside the insulating gear, and a plurality of fixing blocks arranged in a circumferential direction on the inner ring of the brush ring, each fixing block being connected to a discharge needle.

[0006] Furthermore, the device also includes a rotating structure with a channel tube, through which multiple rotating brushes are connected and arranged in a linear array.

[0007] Furthermore, the rotating structure is also provided with a rotating gear, a positioning rod and a support plate. Each rotating brush is meshed with an insulated gear and connected to a rotating gear. The rotating gears are connected to the same axis by a positioning rod passing through their axis. The front and rear ends of the positioning rod are supported and fixed by the support plate.

[0008] Furthermore, the rotating structure is also provided with a bevel gear and a positioning shaft. The bevel gear is connected to one side of the positioning rod through the positioning shaft. The rotating structure is also provided with a fixed connecting plate. One end of the fixed connecting plate is connected to the channel tube, and the other end is connected to the positioning rod. Three fixed connecting plates are arranged between adjacent rotating brushes.

[0009] Furthermore, the width of the brush ring is greater than the width of the insulating gear, and a connector for power supply connection is connected to the bottom side of the brush ring.

[0010] Furthermore, the channel pipe is connected to a venturi tube, the venturi tube has an inlet, and its throat is connected to a valve body through a pipe. The bottom of the valve body is connected to a storage box.

[0011] This utility model has the following beneficial effects: (1) This utility model rotates under external drive by an insulating gear, which drives the brush ring connected inside to rotate synchronously. The fixed block and the discharge needle at the end of the brush ring, which are arranged in a circular array along the circumference, make continuous circular motion. This cooperation makes the high voltage discharge point change from static to dynamic, periodically sweeping across the entire flocking area, breaking the static electric field distribution pattern generated by the fixed discharge needle, thereby eliminating the inherent strong and weak "dead angles" or "static shadows" in the electric field, and ensuring that the flock can be subjected to uniform electrostatic adsorption force at any point on the substrate surface.

[0012] (2) This utility model drives the bevel gear and the positioning shaft through external power, which drives the positioning rod to rotate. The positioning rod forces all rotating gears to rotate synchronously. Each rotating gear then meshes with the insulating gear of a rotating brush. The cooperation of this whole set of gear transmission system ensures that all rotating brushes in the linear array can rotate. Therefore, the dynamic characteristics of the discharge electric field are consistent on the entire wide working surface, avoiding the strip-like difference in flocking density caused by the asynchronous operation of multiple independent discharge units.

[0013] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0014] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying 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.

[0015] Figure 1 This is a schematic diagram of the rotating brush of this utility model; Figure 2 This is a schematic diagram of the overall structure of the present utility model. Figure 1 ; Figure 3 This is a schematic diagram of the rotating structure of this utility model; Figure 4 This is a schematic diagram of the overall structure of the present utility model. Figure 2 ; The attached diagram lists the components represented by each number as follows: In the diagram: 1. Rotating brush; 101. Insulating gear; 102. Brush ring; 103. Fixing block; 104. Discharge needle; 2. Rotating structure; 201. Channel tube; 202. Rotating gear; 203. Positioning rod; 204. Support plate; 205. Fixing connecting plate; 206. Positioning shaft; 207. Bevel gear; 208. Connector; 3. Venturi tube; 301. Inlet; 302. Valve body; 303. Storage box. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. 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.

[0017] Please see Figures 1-4 As shown, this utility model is a flocking device for uniform flocking, including a rotating brush 1, the rotating brush 1 is provided with an insulating gear 101, and a brush ring 102 is connected inside the insulating gear 101. The inner ring of the brush ring 102 is provided with a plurality of fixing blocks 103 arranged in a circumferential direction, and each fixing block 103 is connected to a discharge needle 104; Please refer to Figure 1 As shown, the insulating gear 101 of the rotating brush 1 is driven to rotate externally, which in turn drives the brush ring 102 connected inside to rotate synchronously. The multiple fixed blocks 103 arranged in the circumferential direction of the inner ring of the brush ring 102 move in a circular motion. The discharge needle 104 connected to each fixed block 103 thus continuously rotates around the central axis, thereby forming a dynamically swept discharge point in the flocked area. The device also includes a rotating structure 2, which has a channel tube 201. Multiple rotating brushes 1 are connected through the channel tube 201 and arranged in a linear array. The rotating structure 2 is also provided with a rotating gear 202, a positioning rod 203 and a support plate 204. Each rotating brush 1 has an insulated gear 101 meshing with a rotating gear 202. The rotating gear 202 is connected to the same axis by a positioning rod 203 passing through its axis. The front and rear ends of the positioning rod 203 are supported and fixed by the support plate 204. The rotating structure 2 is also provided with a bevel gear 207 and a positioning shaft 206. The bevel gear 207 is connected to one side of the positioning rod 203 through the positioning shaft 206. The rotating structure 2 is also provided with a fixed connecting plate 205. One end of the fixed connecting plate 205 is connected to the channel tube 201, and the other end is connected to the positioning rod 203. It is set between adjacent rotating brushes 1, and there are three of them in total. The width of the brush ring 102 is greater than the width of the insulating gear 101, and a connector 208 for power supply connection is connected to the bottom side of the brush ring 102. The channel pipe 201 is connected to the venturi tube 3, the venturi tube 3 is provided with an inlet 301, and its throat is connected to a valve body 302 through a pipe. The bottom of the valve body 302 is connected to a storage box 303. Please refer to Figure 2 , Figure 3 , Figure 4 As shown, an external power drive rotates the bevel gear 207, which in turn drives the positioning shaft 206 and positioning rod 203 connected to it to rotate synchronously. The positioning rod 203 drives all the rotating gears 202 on it to rotate around its axis. In turn, each rotating gear 202 meshes and drives the corresponding insulating gear 101 and rotating brush 1 to rotate around its own axis. At the same time, the connector 208 provides stable power to the wider brush ring 102. On the fluff supply side, the fluff in the storage box 303 is drawn into the throat of the venturi tube 3 and ejected from its inlet 301 after the flow rate is regulated by the valve body 302. Then, it is transported and distributed to each rotating brush 1 area of ​​the linear array through the channel tube 201. The entire structure is mainly supported by the front and rear support plates 204, and the channel tube 201 is rigidly connected to the positioning rod 203 through three fixed connecting plates 205 to ensure the stability of mechanical synchronization.

[0018] In use, firstly, external power drives the bevel gear 207 to rotate, causing the positioning shaft 206 and positioning rod 203 connected to it to rotate synchronously. The positioning rod 203 drives all the rotating gears 202 on it to rotate, which in turn meshes and drives the insulating gear 101 of each rotating brush 1 to rotate around its own central axis. The insulating gear 101 drives the brush ring 102 and the circumferentially arrayed fixing blocks 103 inside it to rotate together, so that the discharge needle 104 at the end of each fixing block 103 makes a circular motion. At the same time, the fluff in the storage box 303, under the action of gravity and airflow, is regulated by the valve body 302. The fibers are drawn into the middle thin tube of the Venturi tube 3 and ejected from the inlet 301. They are then transported and diffused through the channel tube 201 to each rotating brush 1 area. The connector 208 applies high voltage static electricity to the brush ring 102, causing the rotating discharge needle 104 to continuously generate a high voltage static field. The scattered fibers are fully polarized and oriented in this dynamic electric field, and are uniformly and vertically adsorbed onto the substrate surface below the penetrating device, completing the entire flocking process. The entire device is stably supported by the support plates 204 at both ends, and the structure between the channel tube 201 and the positioning rod 203 is ensured to be stable by the fixed connecting plate 205.

[0019] 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 the specific implementations described. 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 flocking device for uniform flocking, comprising a rotating brush (1), characterized in that: The rotating brush (1) is provided with an insulating gear (101), and a brush ring (102) is connected inside the insulating gear (101). The inner ring of the brush ring (102) is provided with a plurality of fixing blocks (103) arranged in a circumferential direction, and each fixing block (103) is connected to a discharge needle (104).

2. A uniform tufting device according to claim 1, wherein: The device is also provided with a rotating structure (2), which is provided with a channel tube (201). Multiple rotating brushes (1) are connected through the channel tube (201) and arranged in a linear array.

3. A uniform tufting device according to claim 2, wherein: The rotating structure (2) is also provided with a rotating gear (202), a positioning rod (203) and a support plate (204). Each rotating brush (1) is meshed with an insulating gear (101) connected to a rotating gear (202). The rotating gear (202) is connected to the same axis by a positioning rod (203) passing through its axis. The front and rear ends of the positioning rod (203) are supported and fixed by the support plate (204).

4. The flocking device for uniform flocking according to claim 3, characterized in that: The rotating structure (2) is also provided with a bevel gear (207) and a positioning shaft (206). The bevel gear (207) is connected to one side of the positioning rod (203) through the positioning shaft (206). The rotating structure (2) is also provided with a fixed connecting plate (205), one end of which is connected to the channel pipe (201), and the other end is connected to the positioning rod (203). It is set between adjacent rotating brushes (1), and there are three of them in total.

5. The flocking device for uniform flocking according to claim 1, characterized in that: The width of the brush ring (102) is greater than the width of the insulating gear (101), and a connector (208) for power supply connection is connected to the bottom side of the brush ring (102).

6. The flocking device for uniform flocking according to claim 2, characterized in that: The channel pipe (201) is connected to a venturi tube (3), the venturi tube (3) is provided with an inlet (301), and its throat is connected to a valve body (302) through a pipe. The bottom of the valve body (302) is connected to a storage box (303).

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