High temperature brush coating liquid metal apparatus

By designing a high-temperature liquid metal coating equipment, utilizing a horizontal moving unit and carbon fiber brush assembly, combined with heating and cooling functions, the problems of uneven coating and easy brush damage were solved, achieving high-precision and high-efficiency liquid metal coating.

CN224337726UActive Publication Date: 2026-06-09SHENZHEN HFC SHIELDING PRODS CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHENZHEN HFC SHIELDING PRODS CO LTD
Filing Date
2025-05-30
Publication Date
2026-06-09

AI Technical Summary

Technical Problem

In existing technologies, when manually applying liquid metal with a craft brush or bristle brush, the coating is uneven, it is difficult to adapt to complex shapes and narrow spaces, and the brush is easily damaged, affecting product quality and pass rate.

Method used

The equipment for high-temperature brushing of liquid metal includes a frame, a processing platform, a horizontal moving unit, and a carbon fiber brush assembly. The horizontal moving unit drives the carbon fiber brush assembly to move along the processing platform. Combined with heating elements and a cooling layer, it achieves precise temperature control and flow control, adapting to the brushing of irregular structures and confined spaces.

Benefits of technology

It achieves uniformity and consistency in liquid metal coating, improves brushing accuracy and stability, reduces labor intensity, and meets the requirements of high precision and high quality processing.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224337726U_ABST
    Figure CN224337726U_ABST
Patent Text Reader

Abstract

The utility model discloses a high temperature brush coating liquid metal equipment, it includes frame, sets up the processing platform on the frame, horizontal movement unit and carbon fiber brush subassembly, the processing platform forms the processing position for placing the workpiece of waiting processing on, the horizontal movement unit includes horizontal movement drive part and moving support, carbon fiber brush subassembly is connected on moving support and sets up corresponding processing position, horizontal movement drive part drives moving support moves along the length extension direction of processing platform, to drive carbon fiber brush subassembly movement, carbon fiber brush subassembly includes heat conduction carbon fiber brush, brush handle and heating part, heating part sets up in brush handle, at least one flow channel from feeding end through to heat conduction carbon fiber brush is seted up in brush handle. The utility model discloses convenient implementation even, effective brush, and can adapt to narrow space and special-shaped structure.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of thermal conductive material preparation technology, and in particular to a high-temperature brush coating device for liquid metal. Background Technology

[0002] In the field of liquid metal heat conduction, as products are updated and iterated, higher requirements are placed on product quality and production capacity. As a result, more companies are beginning to optimize and improve their production methods and efficiency to match market demand.

[0003] Currently, the methods commonly used in the industry for treating the surface of metal thermal pads have certain limitations. Most companies still use relatively traditional methods, with fixtures mainly consisting of simple utility brushes and bristle brushes. Moreover, this brushing operation relies on manual labor. Operators hold the brush and rely on experience and skill to apply the coating to the metal surface.

[0004] A significant drawback of existing technologies is that it is difficult to ensure a uniform coating when manually applying paint using art brushes or bristle brushes. Due to human factors, the brushing pressure and speed vary considerably among different operators, leading to inconsistent coating thickness and affecting the product's thermal conductivity and overall quality. Furthermore, under prolonged high-temperature working environments, brush bristles are prone to shedding, which can mix into the liquid metal coating, further compromising coating uniformity and potentially contaminating the product, thus reducing its yield. This traditional brushing method is particularly inadequate for finishing complex shapes or internal structures, failing to effectively coat confined spaces and irregularly shaped structures. Utility Model Content

[0005] This application provides a high-temperature brushing device for liquid metal, which facilitates uniform and effective brushing and can adapt to confined spaces and irregular structures.

[0006] This application provides a high-temperature brushing device for liquid metal, which adopts the following technical solution:

[0007] A high-temperature brush coating device for liquid metal includes a frame, a processing platform mounted on the frame, a horizontal moving unit, and a carbon fiber brush assembly;

[0008] The processing platform has processing positions for placing the workpiece to be processed;

[0009] The horizontal moving unit includes a horizontal moving drive and a moving bracket. The carbon fiber brush assembly is connected to the moving bracket and is set corresponding to the processing position. The horizontal moving drive drives the moving bracket to move along the length extension direction of the processing platform, so as to drive the carbon fiber brush assembly to move.

[0010] The carbon fiber brush assembly includes a thermally conductive carbon fiber brush, a brush handle, and a heating element. The heating element is disposed inside the brush handle, and at least one flow channel extending from the feed end to the thermally conductive carbon fiber brush is provided inside the brush handle.

[0011] By adopting the above technical solution, this utility model designs a high-temperature liquid metal brushing device. In use, the frame supports the entire device, the processing platform provides a position for placing the workpiece to be processed, the horizontal moving unit can drive the carbon fiber brush assembly to move along the length extension direction of the processing platform, which facilitates brushing operations on the workpiece to be processed at different positions, the heating element of the carbon fiber brush assembly can heat the liquid metal in the brush handle, so that the liquid metal maintains a suitable fluidity, and the flow channel allows the liquid metal to flow from the feed end to the heat-conducting carbon fiber brush, thereby realizing the function of high-temperature liquid metal brushing.

[0012] Preferably, the processing platform includes a heating layer, which includes a heating plate and a heater, the heater being configured to heat at least the processing position.

[0013] By adopting the above technical solution, the heater in the heating layer can be used to heat the processing position or the entire processing platform, which can ensure that a suitable temperature is reached during the processing, which is conducive to the brushing of liquid metal.

[0014] Preferably, the heating layer further includes a temperature sensor disposed on the heating plate.

[0015] By adopting the above technical solution, when in use, the temperature sensor is set on the heating plate, which can transmit the detected temperature data to the control system. The control system adjusts the operation of the heater according to the data, so as to achieve precise control and automatic regulation of the temperature of the processing position.

[0016] Preferably, the processing platform further includes a cooling layer that is in contact with the heating layer, the cooling layer including a cooling plate and liquid cooling pipes disposed on the cooling plate.

[0017] By adopting the above technical solution, a cooling layer with liquid cooling pipes is set at the contact point with the heating layer during use, which can effectively cool the processing platform. Combined with the heating layer to regulate the temperature of the processing platform, it can better meet the process requirements of high-temperature brushing of liquid metal.

[0018] Preferably, the processing position is a fixed slot, which is configured to fix the workpiece to be processed, and the movement range of the carbon fiber brush assembly covers the processing position.

[0019] By adopting the above technical solution, the workpiece to be processed can be fixed by the fixing slot during use, which can prevent the workpiece from shifting during the processing and ensure the brushing effect. Moreover, the moving range of the carbon fiber brush assembly covers the processing position, which can ensure that the liquid metal is fully brushed onto the fixed workpiece.

[0020] Preferably, the device further includes a hopper and a flow control valve, wherein the hopper is disposed at the feed end of the brush handle, and the flow control valve is disposed between the hopper and the flow channel.

[0021] By adopting the above technical solution, the high-temperature brushing liquid metal equipment is equipped with a hopper and a flow control valve during use. The hopper is located at the feed end of the brush handle, and the flow control valve is located between the hopper and the flow channel, which facilitates the supply of liquid metal to the flow channel and controls the flow rate of the liquid metal.

[0022] Preferably, the movable support includes two support components and a crossbeam connected between the two support components, the two support components are tractively connected to the output end of the horizontal movement drive, and the carbon fiber brush assembly is connected to the crossbeam.

[0023] By adopting the above technical solution, during use, the horizontal moving drive component drives the moving bracket, enabling the carbon fiber brush assembly on the crossbeam to move along the length extension direction of the processing platform, thereby realizing the liquid metal brushing operation at the processing position.

[0024] Preferably, the support assembly includes a height adjustment component and a driving component, wherein the driving component is used to drive the height adjustment component to extend or retract along the height direction to adjust the height of the crossbeam relative to the processing platform.

[0025] By adopting the above technical solution, during use, the driving component of the support assembly drives the height adjustment component to extend and retract, which can flexibly adjust the height of the crossbeam relative to the processing platform to meet processing needs at different heights.

[0026] Preferably, the support assembly includes height adjustment rods and adjustment fasteners. The two height adjustment rods are respectively inserted through both ends of the crossbeam and fixed by the adjustment fasteners. The adjustment fasteners are configured to be adjustable in position on the height adjustment rods to adjust the height of the crossbeam.

[0027] By adopting the above technical solution, the height of the crossbeam can be adjusted by adjusting the position of the fixing part on the height adjustment rod during use, thereby flexibly adjusting the height of the carbon fiber brush assembly relative to the processing platform to adapt to different processing needs.

[0028] Preferably, the processing platform is provided with multiple negative pressure holes, one end of which is connected to the workpiece to be processed, and the other end of which is connected to a vacuum unit.

[0029] By adopting the above technical solution, the negative pressure hole and vacuum unit can be used to adsorb the workpiece to be processed, so that the workpiece can be placed more stably on the processing platform.

[0030] In summary, this application has the following beneficial effects:

[0031] 1. The present invention relates to a high-temperature brush coating equipment for liquid metal. The horizontal moving drive component drives the moving bracket to move the carbon fiber brush assembly along the length extension direction of the processing platform. This enables precise movement control of liquid metal brush coating, avoiding the problems of traditional equipment lacking precise movement control and being unable to adapt to complex shapes and high-precision processing tasks, thereby improving the accuracy and stability of brush coating.

[0032] 2. The present invention relates to a high-temperature brushing device for liquid metal, wherein the heating element is located inside the brush handle, and the heater can heat at least the processing position, thereby enabling precise temperature control of the brushing area, effectively controlling the fluidity and viscosity of the liquid metal, and improving the brushing effect.

[0033] 3. The present invention relates to a high-temperature brushing equipment for liquid metal, wherein the cooling layer of the processing platform, in conjunction with a cooling device, rapidly reduces the platform temperature, making it convenient to remove the workpiece coated with liquid metal. Attached Figure Description

[0034] Figure 1 This is a schematic diagram of the structure of an embodiment;

[0035] Figure 2 This is a schematic diagram showing the structure of the cooling pipes in the embodiment;

[0036] Figure 3 This is a cross-sectional view of an embodiment;

[0037] Figure 4 This is a schematic diagram showing the height adjustment rod and adjustment fixing component in the embodiment;

[0038] Figure 5 This is a schematic diagram showing the structure of the height adjustment component and the drive component in the embodiment;

[0039] Explanation of reference numerals in the attached drawings: 1. Frame; 2. Processing platform; 3. Horizontal moving unit; 31. Horizontal moving drive; 32. Moving bracket; 321. Support assembly; 3211. Height adjusting component; 3212. Drive component; 3213. Height adjusting rod; 3214. Adjusting fixing component; 322. Crossbeam; 4. Carbon fiber brush assembly; 41. Thermally conductive carbon fiber brush; 42. Brush handle; 43. Heating component; 44. Flow channel; 5. Processing position; 6. Heating layer; 61. Heating plate; 62. Heater; 63. Temperature sensor; 7. Cooling layer; 71. Cooling plate; 72. Liquid cooling pipeline; 8. Fixing slot; 9. Hopper; 10. Flow control valve; 11. Negative pressure hole. Detailed Implementation

[0040] The present invention will be further described in detail below with reference to the accompanying drawings. Identical components are indicated by the same reference numerals. It should be noted that the terms "front," "rear," "left," "right," "upper," "lower," "bottom," and "top" used in the following description refer to directions in the accompanying drawings, while the terms "inner" and "outer" refer to directions toward or away from the geometric center of a specific component, respectively.

[0041] The high-temperature brushing liquid metal equipment provided in this application embodiment, such as... Figures 1 to 3 As shown, the system includes a frame 1, a processing platform 2, a horizontal moving unit 3, and a carbon fiber brush assembly 4. The processing platform 2 is mounted on the frame 1. The horizontal moving unit 3 can drive the carbon fiber brush assembly 4 to move along the length extension direction of the processing platform 2, thereby enabling liquid metal coating on the workpiece placed on the processing position 5 of the processing platform 2. This achieves the effect of improving coating efficiency and quality, and ensuring coating uniformity and consistency. This is because the horizontal moving unit 3 can precisely control the movement of the carbon fiber brush assembly 4, making the coating process more stable and accurate.

[0042] Specifically, the frame 1 serves to support the entire equipment. It is generally made of high-strength metal materials, providing good stability and durability. The shape and structure of the frame 1 can be designed according to the actual equipment layout and space requirements; a common type is the frame structure. Anchor bolts can be installed at the bottom of the frame 1 to secure it to the ground and prevent the equipment from shaking during operation.

[0043] In a preferred embodiment, a processing station 5 for placing a workpiece to be processed is formed on the processing platform 2. The processing platform 2 includes a heating layer 6, which includes a heating plate 61 and a heater 62. The heater 62 is configured to heat the processing station 5 or the entire processing platform 2. The heating plate 61 can be an aluminum plate or a copper plate, which have good thermal conductivity and can quickly and evenly transfer heat. The heater 62 can be a resistance wire heater 62 or an infrared heater 62, etc. The resistance wire heater 62 generates heat by passing current through a resistance wire, while the infrared heater 62 uses infrared radiation to heat.

[0044] In another preferred embodiment, the heating layer 6 further includes a temperature sensor 63 disposed on the heating plate 61. The temperature sensor 63 can monitor the temperature of the heating plate 61 in real time and then transmit the temperature data to the control system. The control system adjusts the temperature of the heater 62 according to the transmitted temperature data to ensure that the temperature is always within a suitable range. At the same time, the control system can also be configured to be interconnected with the horizontal moving unit 3. When the temperature rises to the processable temperature, the horizontal moving unit 3 is automatically controlled to complete the brush coating process.

[0045] In some embodiments, the processing platform 2 further includes a cooling layer 7 disposed in contact with the heating layer 6. The cooling layer 7 can be disposed above or below the heating layer 6. The cooling layer 7 includes a cooling plate 71 and liquid cooling pipes 72 disposed on the cooling plate 71. The cooling layer 7 allows the liquid metal to cool down more quickly, resulting in finer grains and better material properties. The cooling plate 71 can be made of stainless steel or copper alloy and has good heat dissipation performance. The liquid cooling pipes 72 connect a cooling water tank and a circulation pump. The circulation pump circulates the coolant from the cooling water tank to the liquid cooling pipes 72, carrying away excess heat generated by the heating layer 6 and achieving precise temperature control of the processing platform 2. The coolant here can be water.

[0046] In some embodiments, the horizontal moving unit 3 includes a horizontal moving drive 31 and a moving bracket 32. The carbon fiber brush assembly 4 is connected to the moving bracket 32 ​​and is positioned corresponding to the processing position 5. The horizontal moving drive 31 drives the moving bracket 32 ​​to move along the length extension direction of the processing platform 2, thereby moving the carbon fiber brush assembly 4. The horizontal moving drive 31 can be a track, belt, gear, lead screw, cylinder, motor, etc. If a lead screw drive is used, the lead screw is connected to the output shaft of the motor through a coupling. The rotation of the motor drives the lead screw to rotate, thereby causing the nut that cooperates with the lead screw to move the moving bracket 32. If a cylinder drive is used, the piston rod of the cylinder is connected to the moving bracket 32, and the extension and retraction of the cylinder causes the moving bracket 32 ​​to move.

[0047] In some embodiments, the movable support 32 includes two support components 321 and a crossbeam 322 connected between the two support components 321. The two support components 321 are tractively connected to the output end of the horizontal movement drive 31, and the carbon fiber brush assembly 4 is connected to the crossbeam 322.

[0048] Reference Figure 5 The support assembly 321 includes a height adjustment component 3211 and a drive component 3212. The drive component 3212 is used to drive the height adjustment component 3211 to extend or retract along the height direction to adjust the height of the crossbeam 322 relative to the processing platform 2. The drive component 3212 can be a cylinder, a motor, or a lead screw, etc., that drives a telescopic rod. For example, a motor can be used to drive a lead screw, and the rotation of the lead screw causes the nut that meshes with it to raise or lower the height adjustment component 3211.

[0049] In some specific embodiments, the carbon fiber brush assembly 4 includes a thermally conductive carbon fiber brush 41, a brush handle 42, and a heating element 43. The heating element 43 is disposed within the brush handle 42, which has at least one flow channel 44 extending from the feed end to the thermally conductive carbon fiber brush 41. It is understood that one or more flow channels 44 can be provided; preferably, multiple flow channels 44 are evenly arranged. Preferably, the flow channels 44 have a small diameter, which facilitates the automatic flow of liquid metal and its even distribution on the carbon fiber brush. The thermally conductive carbon fiber brush 41 has good thermal conductivity and high-temperature resistance, enabling it to evenly coat the liquid metal onto the surface of the workpiece. The brush handle 42 can be made of ceramic or high-temperature resistant plastic, providing good heat insulation to prevent burns to the operator. The heating element 43 can be a heating rod or a small resistance wire heater 62, capable of heating the liquid metal within the brush handle 42 to ensure the fluidity of the liquid metal. The flow channel 44 inside the brush handle 42 allows liquid metal to flow out automatically and be evenly distributed on the carbon fiber brush, greatly reducing the labor intensity of manual operation, realizing automatic brushing, and improving work efficiency.

[0050] Furthermore, preferably, the heating element 43 is arranged corresponding to the flow channel 44, that is, arranged along its extension direction. This arrangement is conducive to uniformly heating the liquid metal, improving the uniformity and stability of the brush coating, and improving the material properties.

[0051] In some specific embodiments, the device further includes a hopper 9 and a flow control valve 10. The hopper 9 is disposed at the feed end of the brush handle 42, and the flow control valve 10 is disposed between the hopper 9 and the flow channel 44. The flow control valve 10 can precisely control the flow rate of the liquid metal to ensure uniform coating thickness. The flow control valve 10 can be an electric flow control valve 10 or a pneumatic flow control valve 10, and the valve opening is adjusted by a control system.

[0052] In some specific embodiments, the processing position 5 is a fixed slot 8, which is configured to fix the workpiece to be processed, and the moving range of the carbon fiber brush assembly 4 covers the processing position 5. The shape and size of the fixed slot 8 can be designed according to the shape and size of the workpiece to be processed, which can effectively prevent the workpiece to be processed from moving during the brushing process.

[0053] In some specific embodiments, the processing platform 2 is provided with multiple negative pressure holes 11. One end of the negative pressure hole 11 is connected to the workpiece to be processed, and the other end of the negative pressure hole 11 is connected to a vacuum pumping unit. The vacuum pumping unit can be a vacuum pump, which uses the negative pressure holes 11 to adsorb the workpiece to be processed onto the processing platform 2, thereby further improving the stability of the workpiece.

[0054] In one embodiment, the high-temperature liquid metal brushing device provided in this application also includes a control system, which is communicatively connected to the horizontal moving unit 3, the carbon fiber brush assembly 4, the cooling layer 7, and the heating layer 6, and controls their operation.

[0055] The implementation principle of this embodiment is as follows: The high-temperature liquid metal brushing equipment of this embodiment precisely controls the movement of the carbon fiber brush assembly 4 through the horizontal moving unit 3. Combined with the heating and cooling functions of the processing platform 2 and the precise control of the liquid metal flow rate by the flow control valve 10, the efficiency and quality of brushing are improved, ensuring the uniformity and consistency of the brushing. Simultaneously, the workpiece to be processed is fixed by the negative pressure hole 11 and the fixing slot 8, further improving the stability of the brushing process. Compared with traditional manual brushing and brushing with simple mechanical equipment, this equipment greatly reduces labor intensity, improves the accuracy and reliability of brushing, and meets the requirements of modern industry for high-precision, high-quality brushing. (Refer to...) Figure 4 In some embodiments, the support assembly 321 includes height adjusting rods 3213 and adjusting fasteners 3214. The two height adjusting rods 3213 are respectively inserted through both ends of the crossbeam 322 and fixed by the adjusting fasteners 3214. The adjusting fasteners 3214 are configured to be adjustable in position on the height adjusting rods 3213 to adjust the height of the crossbeam 322. The height adjusting rods 3213 are generally threaded rods, and the adjusting fasteners 3214 can be nuts. The height of the crossbeam 322 is adjusted by rotating the nut on the threaded rod. This adjustment method is simple, reliable, and low-cost.

[0056] The implementation principle of this embodiment is as follows: the height of the crossbeam 322 is adjusted by the height adjustment rod 3213 and the adjustment fixing part 3214, which can also meet the adjustment requirements of the height of the carbon fiber brush assembly 4 to adapt to the brushing requirements of different workpieces. This structure is simple and easy to operate, reduces the manufacturing cost of the equipment, and is also convenient for maintenance and repair, thus improving the practicality and economy of the equipment.

[0057] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A high-temperature brushing device for liquid metal, characterized in that: It includes a frame (1), a processing platform (2) mounted on the frame (1), a horizontal moving unit (3), and a carbon fiber brush assembly (4); The processing platform (2) forms a processing station (5) for placing the workpiece to be processed; The horizontal moving unit (3) includes a horizontal moving drive (31) and a moving bracket (32). The carbon fiber brush assembly (4) is connected to the moving bracket (32) and is set corresponding to the processing position (5). The horizontal moving drive (31) drives the moving bracket (32) to move along the length extension direction of the processing platform (2) so as to drive the carbon fiber brush assembly (4) to move. The carbon fiber brush assembly (4) includes a thermally conductive carbon fiber brush (41), a brush handle (42), and a heating element (43). The heating element (43) is disposed inside the brush handle (42), and at least one flow channel (44) is provided inside the brush handle (42) extending from the feed end to the thermally conductive carbon fiber brush (41).

2. The high-temperature brushing liquid metal equipment according to claim 1, characterized in that, The processing platform (2) includes a heating layer (6), which includes a heating plate (61) and a heater (62), the heater (62) being configured to heat at least the processing position (5).

3. The high-temperature brushing liquid metal equipment according to claim 2, characterized in that, The heating layer (6) also includes a temperature sensor (63) disposed on the heating plate (61).

4. The high-temperature brushing liquid metal equipment according to claim 2, characterized in that, The processing platform (2) also includes a cooling layer (7) that is in contact with the heating layer (6). The cooling layer (7) includes a cooling plate (71) and liquid cooling pipes (72) disposed on the cooling plate (71).

5. The high-temperature brushing liquid metal equipment according to claim 1, characterized in that, The processing position (5) is a fixed slot (8), which is configured to fix the workpiece to be processed, and the moving range of the carbon fiber brush assembly (4) covers the processing position (5).

6. The high-temperature brushing liquid metal equipment according to claim 1, characterized in that, It also includes a hopper (9) and a flow control valve (10), wherein the hopper (9) is disposed at the feed end of the brush handle (42) and the flow control valve (10) is disposed between the hopper (9) and the flow channel (44).

7. The high-temperature brushing liquid metal equipment according to claim 1, characterized in that, The movable support (32) includes two support components (321) and a crossbeam (322) connected between the two support components (321). The two support components (321) are tractively connected to the output end of the horizontal moving drive (31). The carbon fiber brush assembly (4) is connected to the crossbeam (322).

8. The high-temperature brushing liquid metal equipment according to claim 7, characterized in that, The support assembly (321) includes a height adjustment member (3211) and a drive member (3212). The drive member (3212) is used to drive the height adjustment member (3211) to extend or retract along the height direction to adjust the height of the crossbeam (322) relative to the processing platform (2).

9. The high-temperature brushing liquid metal equipment according to claim 7, characterized in that, The support assembly (321) includes a height adjustment rod (3213) and an adjustment fixing member (3214). The two height adjustment rods (3213) are respectively inserted through both ends of the crossbeam (322) and fixed by the adjustment fixing member (3214). The adjustment fixing member (3214) is configured to be adjustable in position on the height adjustment rod (3213) to adjust the height of the crossbeam (322).

10. The high-temperature brushing equipment for liquid metal according to claim 1, characterized in that, The processing platform (2) is provided with a plurality of negative pressure holes (11), one end of the negative pressure hole (11) is connected to the workpiece to be processed, and the other end of the negative pressure hole (11) is connected to the vacuum unit.