Glue spraying device for graphene heat-conducting fin production

Abstract

The utility model relates to a glue spraying device for producing a graphene heat-conducting fin, which is characterized in that when the graphene heat-conducting fin needs to be subjected to glue spraying treatment, the heat-conducting fin can be laid on a placing plate, and then a linear driving piece is operated to drive the heat-conducting fin to descend into a thickness control frame through the placing plate; then the height from the top surface of the heat-conducting fin to the top surface of the thickness control frame is the required glue spraying thickness, then a movable glue spraying mechanism is operated to spray glue on the top surface of the heat-conducting fin, and after glue spraying is completed, a scraping assembly can be operated to scrape along the top surface of the thickness control frame; when the thickness of the glue attached to the heat-conducting sheet is adjusted, the linear driving piece can be operated to drive the heat-conducting sheet to be pushed out of the upper portion of the thickness control frame through the placing plate, so that the heat-conducting sheet can be fixed on the thickness control frame, and the heat-conducting sheet can be fixed on the thickness control frame through the placing plate. And the heat-conducting fin can be conveniently taken out.

Description

Technical Field

[0001] This utility model relates to the field of graphene thermal conductive sheet spraying technology, and in particular to a spraying device for the production of graphene thermal conductive sheets. Background Technology

[0002] With the rapid development of big data, 5G, AI, IoT, and other technologies, the heat source power of electronic components is increasing, and the heat dissipation requirements are further improving. The heat transfer efficiency of interface heat conduction materials is required to be higher. Conventional heat conduction sheets can no longer meet the functional requirements, and there is an urgent need for heat conduction sheets with higher thermal conductivity to meet the heat dissipation requirements. Graphene is currently the material with the best thermal conductivity. Heat conduction sheets made of graphene can be better used in electronic products. In order to increase the thermal conductivity of graphene heat conduction sheets, adhesive can be sprayed on the outer surface of the heat conduction sheet.

[0003] Traditional graphene thermal conductive sheet spraying devices cannot effectively control the thickness of the adhesive on the thermal conductive sheet, and the thickness spraying is not uniform enough. This results in inconsistent thermal conductivity in different areas of the graphene thermal conductive sheet, affecting its thermal conductivity and hindering its subsequent use. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the aforementioned problems in the prior art, this utility model provides a glue spraying device for the production of graphene thermal conductive sheets. This device enables more convenient and efficient glue spraying of graphene thermal conductive sheets, allowing for better control of the glue thickness on the sheets. This ensures consistent thermal conductivity across all areas of the graphene thermal conductive sheet, thereby maximizing its thermal conductivity in subsequent applications.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, the main technical solutions adopted by this utility model include:

[0008] A glue spraying device for producing graphene thermal conductive sheets includes a base, a thickness control mechanism, and a movable glue spraying mechanism. The thickness control mechanism is connected to the base, and the movable glue spraying mechanism is disposed above the thickness control mechanism and connected to the base.

[0009] The thickness control mechanism includes a linear drive, a placement plate, a thickness control frame, and a scraping component. The base has a movable groove in the middle that is adapted to the placement plate. The placement plate is movably connected to the interior of the movable groove. The linear drive is linearly driven connected to the lower part of the placement plate. The thickness control frame is sleeved on the outside of the placement plate and connected to the base. The scraping component is movably connected to the upper surface of the thickness control frame.

[0010] Furthermore, the scraping assembly includes a first rotating drive, a transmission belt, a scraper, and two sets of first moving components. The scraper is movably connected to the upper surface of the thickness control frame. Each end of the scraper is provided with a first moving component. Each first moving component is connected to the base. One first moving component is connected to the other first moving component via the transmission belt. The first rotating drive is driven to one of the first moving components.

[0011] Furthermore, the first moving component includes a first screw, a first slider, and a first slide rail. The first slide rail is connected to the base. The lower part of the first slider is slidably connected to the first slide rail. The upper part of the first slide rail is connected to the scraper. The first screw passes through the middle of the first slider and is rotatably connected to the first slide rail. One first screw is driven to another first screw through the transmission belt. The first rotation drive is driven to one of the first screws.

[0012] Furthermore, the mobile glue spraying mechanism includes a frame, a second rotation drive, a rotating shaft, a second moving component, and a glue spraying component. The lower part of the frame is fixedly connected to the upper surface of the base. The upper part of the second moving component is rotatably connected to the upper part of the frame through the rotating shaft. The second rotation drive is drivenly connected to the rotating shaft, and the second moving component is drivenly connected to the glue spraying component.

[0013] Furthermore, the second moving component includes a third rotating drive, a second slide rail, a second slider, and a second screw. The upper part of the second slide rail is rotatably connected to the upper part of the frame via the rotating shaft. The upper part of the second slider is slidably connected to the lower part of the second slide rail. The glue spraying component is provided at the lower part of the second slider. The second screw passes through the middle of the second slider and is rotatably connected to the second slide rail. The third rotating drive is driven by the second screw.

[0014] Furthermore, the glue spraying assembly includes a glue extraction component, a glue inlet tube, a glue outlet tube, and several nozzles. The glue outlet tube passes through the lower part of the second slider and is connected to the second slider. The upper part of the glue outlet tube is connected to the glue extraction component through the glue inlet tube, and several nozzles are arranged in the lower part of the glue outlet tube.

[0015] Furthermore, it also includes a waste glue collection tray, which is sleeved on the outside of the thickness control frame.

[0016] Furthermore, it also includes support feet, with several support feet fixedly connected to the bottom surface of the base.

[0017] Furthermore, it also includes a PLC controller, which is electrically connected to both the thickness control mechanism and the moving glue spraying mechanism.

[0018] (III) Beneficial Effects

[0019] The beneficial effects of this utility model are as follows: In actual production and use, when it is necessary to spray adhesive on the graphene thermal conductive sheet, the thermal conductive sheet can be laid on the placement plate first. Then, the linear drive component is operated to lower the thermal conductive sheet into the thickness control frame through the placement plate. The height from the top surface of the thermal conductive sheet to the top surface of the thickness control frame is then adjusted to the required adhesive thickness. Next, the moving adhesive spraying mechanism is operated to spray adhesive onto the top surface of the thermal conductive sheet. After spraying, the scraping component is operated to scrape along the top surface of the thickness control frame, ensuring that the adhesive thickness on the thermal conductive sheet is higher than the required thickness. Excess adhesive is scraped off during frame making. While scraping off the excess adhesive, areas with insufficient adhesive on the heat-conducting sheet can be filled in. Once the adhesive thickness on the heat-conducting sheet is adjusted, the linear drive can be activated. The linear drive will push the heat-conducting sheet above the thickness control frame via the placement plate, facilitating the removal of the heat-conducting sheet. This allows for more convenient and efficient adhesive spraying of the graphene heat-conducting sheet, enabling the adhesive spraying device to better control the adhesive thickness on the graphene heat-conducting sheet. This ensures that the thermal conductivity of each area of ​​the graphene heat-conducting sheet remains consistent, thus better utilizing the thermal conductivity of the graphene heat-conducting sheet in the future. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the adhesive spraying device for producing graphene thermal conductive sheets according to an embodiment of the present invention.

[0021] Figure 2 This is a schematic diagram of the thickness control mechanism of the adhesive spraying device for producing graphene thermal conductive sheets according to an embodiment of this utility model.

[0022] Figure 3 This is a front view of the thickness control mechanism of the adhesive spraying device for producing graphene thermal conductive sheets according to an embodiment of the present invention.

[0023] Figure 4 This is a schematic diagram of the moving adhesive spraying mechanism of the adhesive spraying device for producing graphene thermal conductive sheets according to an embodiment of this utility model.

[0024] [Explanation of Labels in the Attached Image]

[0025] 1. Glue spraying assembly; 2. Second rotation drive component; 3. Second moving assembly; 4. Frame; 5. Base; 6. Support foot; 7. Waste glue collection tray; 8. Thickness control mechanism; 9. Rotating shaft; 101 glue extraction component; 102 glue inlet pipe; 103 glue outlet pipe; 104. Nozzle; 301. Third rotation drive component; 302. Second slide rail; 303. Second slider; 304. Second screw; 801. Placement plate; 802. Scraper; 803. Transmission belt; 804. First slider; 805. First slide rail; 806. Slide rod; 807. First rotation drive component; 808. Thickness control frame; 809. Linear drive component; 810. Detailed Implementation

[0026] To better explain and facilitate understanding of this utility model, the present utility model will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0027] Please refer to Figures 1 to 4 As shown, the present invention provides a glue spraying device for the production of graphene thermal conductive sheets, including a base 5, a thickness control mechanism 8, and a movable glue spraying mechanism. The thickness control mechanism 8 is connected to the base 5, and the movable glue spraying mechanism is disposed above the thickness control mechanism 8 and connected to the base 5.

[0028] The thickness control mechanism 8 includes a linear drive 810, a placement plate 801, a thickness control frame 809, and a scraping assembly. The base 5 has a movable groove in the middle that is adapted to the placement plate 801. The placement plate 801 is movably connected to the interior of the movable groove. The linear drive 810 is linearly driven connected to the lower part of the placement plate 801. The thickness control frame 809 is sleeved on the outside of the placement plate 801 and connected to the base 5. The scraping assembly is movably connected to the upper surface of the thickness control frame 809.

[0029] The working principle of this utility model is as follows: In actual production and use, when it is necessary to spray adhesive on the graphene thermal conductive sheet, the thermal conductive sheet can be laid on the placement plate 801 first. Then, the linear drive component 810 is operated, so that the linear drive component 810 drives the thermal conductive sheet to descend into the thickness control frame 809 through the placement plate 801. Then, the height from the top surface of the thermal conductive sheet to the top surface of the thickness control frame 809 is adjusted to the required adhesive thickness. Then, the moving adhesive spraying mechanism is operated to spray adhesive on the top surface of the thermal conductive sheet. After the adhesive spraying is completed, the scraping component can be operated to scrape along the top surface of the thickness control frame 809 to remove the excess adhesive on the thermal conductive sheet that is higher than the thickness control frame 809. While scraping off the excess adhesive, the part of the thermal conductive sheet with less adhesive can also be replenished. When the adhesive thickness on the thermal conductive sheet is adjusted, the linear drive component 810 can be operated to drive the thermal conductive sheet out of the thickness control frame 809 through the placement plate 801, making it easier for the thermal conductive sheet to be removed.

[0030] Furthermore, the scraping assembly includes a first rotating drive 808, a transmission belt 803, a scraper 802, and two sets of first moving components. The scraper 802 is movably connected to the upper surface of the thickness control frame 809. Each end of the scraper 802 is provided with a first moving component. Each first moving component is connected to the base 5. One first moving component is connected to the other first moving component via the transmission belt 803. The first rotating drive 808 is driven to one of the first moving components.

[0031] Furthermore, the first moving component includes a first screw 805, a first slider 804, and a first slide rail 806. The first slide rail 806 is connected to the base 5. The lower part of the first slider 804 is slidably connected to the first slide rail 806. The upper part of the first slide rail 806 is connected to the scraper plate 802. The first screw 805 passes through the middle of the first slider 804 and is rotatably connected to the first slide rail 806. One first screw 805 is connected to another first screw 805 via the transmission belt 803. The first rotation drive 808 is drivenly connected to one of the first screws 805.

[0032] As can be seen from the above description, when it is necessary to remove the adhesive above the top surface of the thickness control frame 809, the first rotation drive 808 can be operated to drive a first screw 805 to rotate, thereby causing the first screw 805 to drive another first screw 805 to rotate synchronously through the transmission belt 803, thereby causing the first screw 805 to drive the scraper 802 to move through the first slider 804, causing the scraper 802 to scrape along the top surface of the thickness control frame 809, thereby removing the adhesive above the top surface of the thickness control frame 809.

[0033] Furthermore, the mobile glue spraying mechanism includes a frame 4, a second rotation drive 2, a rotating shaft 9, a second moving component 3, and a glue spraying component 1. The lower part of the frame 4 is fixedly connected to the upper surface of the base 5. The upper part of the second moving component 3 is rotatably connected to the upper part of the frame 4 through the rotating shaft 9. The second rotation drive 2 is drivenly connected to the rotating shaft 9, and the second moving component 3 is drivenly connected to the glue spraying component 1.

[0034] As can be seen from the above description, when it is necessary to spray adhesive onto the heat-conducting sheet, the adhesive can be sprayed onto the heat-conducting sheet through the adhesive spraying component 1. While the adhesive spraying component 1 is spraying, the second moving component 3 can be operated, so that the second moving component 3 drives the adhesive spraying component 1 to spray adhesive along the moving direction of the second moving component 3. When the adhesive spraying is completed at the position of the second moving component 3, the second rotating drive component 2 can be operated, so that the second rotating drive component 2 drives the second moving component 3 to rotate 90° through the rotating shaft 9. Then the second moving component 3 is operated again to move the adhesive spraying component 1, thereby making the adhesive spraying more uniform.

[0035] Furthermore, the second moving component 3 includes a third rotating drive 301, a second slide rail 302, a second slider 303, and a second screw 304. The upper part of the second slide rail 302 is rotatably connected to the upper part of the frame 4 via the rotating shaft 9. The upper part of the second slider 303 is slidably connected to the lower part of the second slide rail 302. The glue spraying component 1 is provided at the lower part of the second slider 303. The second screw 304 passes through the middle of the second slider 303 and is rotatably connected to the second slide rail 302. The third rotating drive 301 is drivenly connected to the second screw 304.

[0036] As can be seen from the above description, when it is necessary to spray adhesive more evenly on the heat-conducting sheet, the third rotation drive 301 can be operated, so that the third rotation drive 301 drives the second slider 303 to move through the second screw 304, thereby causing the second slider 303 to drive the adhesive spraying assembly 1 to move along the direction of the second slide rail 302 to spray adhesive.

[0037] Furthermore, the glue spraying assembly 1 includes a glue extraction component 101, a glue inlet tube 102, a glue outlet tube 103, and a plurality of nozzles 104. The glue outlet tube 103 passes through the lower part of the second slider 303 and is connected to the second slider 303. The upper part of the glue outlet tube 103 is connected to the glue extraction component 101 through the glue inlet tube 102. A plurality of nozzles 104 are arranged in the lower part of the glue outlet tube 103.

[0038] As can be seen from the above description, when it is necessary to spray adhesive onto the heat-conducting sheet, the adhesive extraction component 101 can be operated to draw the adhesive liquid into the adhesive inlet tube 102. Then the adhesive in the adhesive inlet tube 102 flows out of the adhesive tube 103 and is then sprayed onto the heat-conducting sheet through the nozzle 104.

[0039] Furthermore, it also includes a waste glue collection tray 7, which is sleeved on the outside of the thickness control frame 809.

[0040] As can be seen from the above description, the feet above the thickness control frame 809 can be scraped into the waste glue collection tray 7 by the scraper for collection.

[0041] Furthermore, it also includes support feet 6, and several support feet 6 are fixedly connected to the bottom surface of the base 5.

[0042] As can be seen from the above description, it is beneficial for the device to operate more stably.

[0043] Furthermore, it also includes a PLC controller, which is electrically connected to the thickness control mechanism 8 and the moving glue spraying mechanism respectively.

[0044] As can be seen from the above description, it is beneficial to adjust the parameters of the glue spraying device for graphene thermal conductive sheet production through the PLC controller, and to make it more convenient for operators to operate the glue spraying device for graphene thermal conductive sheet production. Example 1

[0045] Please refer to Figures 1 to 4 A glue spraying device for producing graphene thermal conductive sheets includes a base 5, a thickness control mechanism 8, and a movable glue spraying mechanism. The thickness control mechanism 8 is connected to the base 5, and the movable glue spraying mechanism is disposed above the thickness control mechanism 8 and connected to the base 5.

[0046] The thickness control mechanism 8 includes a linear drive 810, a placement plate 801, a thickness control frame 809, and a scraping component. The base 5 has a movable groove in the middle that is adapted to the placement plate 801. The placement plate 801 is movably connected to the interior of the movable groove. The linear drive 810 is linearly driven connected to the lower part of the placement plate 801. The thickness control frame 809 is sleeved on the outside of the placement plate 801 and connected to the base 5. The scraping component is movably connected to the upper surface of the thickness control frame 809.

[0047] It also includes four sliding rods 807. Each of the four sides of the placement plate 801 is provided with a sliding rod 807. The base 5 is provided with sliding holes that are adapted to the sliding rods 807. One of the sliding rods 807 is slidably connected to the inside of one of the sliding holes.

[0048] The linear drive component 810 uses an electric cylinder, which helps to more accurately control the lifting height of the placement plate 801, so that the heat-conducting sheet placed on the placement plate 801 and the top surface of the thickness control frame 809 are at a suitable height.

[0049] The scraping assembly includes a first rotating drive 808, a transmission belt 803, a scraper 802, and two sets of first moving components. The scraper 802 is movably connected to the upper surface of the thickness control frame 809. Each end of the scraper 802 is provided with a first moving component. The first moving components are all connected to the base 5. One first moving component is connected to the other first moving component via the transmission belt 803. The first rotating drive 808 is driven to one of the first moving components.

[0050] The first rotation drive component 808 is a servo motor;

[0051] The bottom of the scraper 802 is in contact with the top surface of the thickness control frame 809;

[0052] The first moving component includes a first screw 805, a first slider 804, and a first slide rail 806. The first slide rail 806 is connected to the base 5. The lower part of the first slider 804 is slidably connected to the first slide rail 806. The upper part of the first slide rail 806 is connected to the scraper 802. The first screw 805 passes through the middle of the first slider 804 and is rotatably connected to the first slide rail 806. One first screw 805 is connected to another first screw 805 via the transmission belt 803. The first rotating drive 808 is drivenly connected to one of the first screws 805.

[0053] The first slider 804 has a first through hole in the middle, and the first through hole has a first internal thread inside, which meshes with the first screw 805;

[0054] The mobile glue spraying mechanism includes a frame 4, a second rotating drive 2, a rotating shaft 9, a second moving component 3, and a glue spraying component 1. The lower part of the frame 4 is fixedly connected to the upper surface of the base 5. The upper part of the second moving component 3 is rotatably connected to the upper part of the frame 4 through the rotating shaft 9. The second rotating drive 2 is drivenly connected to the rotating shaft 9, and the second moving component 3 is drivenly connected to the glue spraying component 1.

[0055] The second rotation drive 2 adopts a servo motor with self-locking, which is beneficial for self-locking after adjusting the position of the glue spraying assembly 1, thereby spraying glue better;

[0056] The second moving component 3 includes a third rotating drive 301, a second slide rail 302, a second slider 303, and a second screw 304. The upper part of the second slide rail 302 is rotatably connected to the upper part of the frame 4 via the rotating shaft 9. The upper part of the second slider 303 is slidably connected to the lower part of the second slide rail 302. The glue spraying component 1 is provided at the lower part of the second slider 303. The second screw 304 passes through the middle of the second slider 303 and is rotatably connected to the second slide rail 302. The third rotating drive 301 is drivenly connected to the second screw 304.

[0057] The second slider 303 has a second through hole in the middle, and a second internal thread is provided inside the second through hole. The second internal thread meshes with the second screw 304.

[0058] The third rotation drive 301 is a stepper motor, which is beneficial to better control the moving speed of the glue spraying assembly 1, thereby spraying glue better.

[0059] The glue spraying assembly 1 includes a glue extraction component 101, a glue inlet tube 102, a glue outlet tube 103, and a plurality of nozzles 104. The glue outlet tube 103 passes through the lower part of the second slider 303 and is connected to the second slider 303. The upper part of the glue outlet tube 103 is connected to the glue extraction component 101 through the glue inlet tube 102. A plurality of nozzles 104 are arranged in the lower part of the glue outlet tube 103.

[0060] The adhesive extraction component 101 is a metering pump;

[0061] It also includes a waste glue collection tray 7, which is sleeved on the outside of the thickness control frame 809;

[0062] It also includes support feet 6, and a plurality of support feet 6 are fixedly connected to the bottom surface of the base 5.

[0063] It also includes a PLC controller, which is electrically connected to the thickness control mechanism 8 and the moving glue spraying mechanism respectively;

[0064] The PLC controller is model DATA-7311, and the PLC controller is electrically connected to the linear drive 810, the first rotary drive 808, the second rotary drive 2, the third rotary drive 301 and the glue extraction component 101 respectively.

[0065] The above describes the basic principles, main features, and advantages of this utility model. All standard parts used in this utility model can be purchased from the market, and irregularly shaped parts can be customized according to the description and drawings. The specific connection methods for each part all adopt conventional methods such as bolts, rivets, and welding, which are mature technologies in the prior art. The machinery, parts, and equipment all adopt conventional models in the prior art, and the circuit connections adopt conventional connection methods in the prior art, which will not be detailed here.

[0066] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent modifications made based on the content of this utility model specification and drawings, or direct or indirect applications in related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A glue spraying device for producing graphene thermal conductive sheets, characterized in that: It includes a base, a thickness control mechanism, and a movable glue spraying mechanism. The thickness control mechanism is connected to the base, and the movable glue spraying mechanism is disposed above the thickness control mechanism and connected to the base. The thickness control mechanism includes a linear drive, a placement plate, a thickness control frame, and a scraping component. The base has a movable groove in the middle that is adapted to the placement plate. The placement plate is movably connected to the interior of the movable groove. The linear drive is linearly driven connected to the lower part of the placement plate. The thickness control frame is sleeved on the outside of the placement plate and connected to the base. The scraping component is movably connected to the upper surface of the thickness control frame.

2. The adhesive spraying device for producing graphene thermal conductive sheets as described in claim 1, characterized in that: The scraping assembly includes a first rotating drive, a transmission belt, a scraper, and two sets of first moving components. The scraper is movably connected to the upper surface of the thickness control frame. Each end of the scraper is provided with a first moving component. Each first moving component is connected to the base. One first moving component is connected to the other first moving component via the transmission belt. The first rotating drive is driven to one of the first moving components.

3. The adhesive spraying device for producing graphene thermal conductive sheets as described in claim 2, characterized in that: The first moving component includes a first screw, a first slider, and a first slide rail. The first slide rail is connected to the base. The lower part of the first slider is slidably connected to the first slide rail. The upper part of the first slide rail is connected to the scraper. The first screw passes through the middle of the first slider and is rotatably connected to the first slide rail. One first screw is driven to another first screw through the transmission belt. The first rotation drive is driven to one of the first screws.

4. The adhesive spraying device for producing graphene thermal conductive sheets as described in claim 1, characterized in that: The mobile glue spraying mechanism includes a frame, a second rotation drive, a rotating shaft, a second moving component, and a glue spraying component. The lower part of the frame is fixedly connected to the upper surface of the base. The upper part of the second moving component is rotatably connected to the upper part of the frame through the rotating shaft. The second rotation drive is driven to the rotating shaft, and the second moving component is driven to the glue spraying component.

5. The adhesive spraying device for producing graphene thermal conductive sheets as described in claim 4, characterized in that: The second moving component includes a third rotating drive, a second slide rail, a second slider, and a second screw. The upper part of the second slide rail is rotatably connected to the upper part of the frame via the rotating shaft. The upper part of the second slider is slidably connected to the lower part of the second slide rail. The glue spraying component is provided at the lower part of the second slider. The second screw passes through the middle of the second slider and is rotatably connected to the second slide rail. The third rotating drive is driven by the second screw.

6. The adhesive spraying device for producing graphene thermal conductive sheets as described in claim 5, characterized in that: The glue spraying assembly includes a glue extraction component, a glue inlet tube, a glue outlet tube, and several nozzles. The glue outlet tube passes through the lower part of the second slider and is connected to the second slider. The upper part of the glue outlet tube is connected to the glue extraction component through the glue inlet tube. Several nozzles are arranged in the lower part of the glue outlet tube.

7. The adhesive spraying device for producing graphene thermal conductive sheets as described in claim 1, characterized in that: It also includes a waste glue collection tray, which is sleeved on the outside of the thickness control frame.

8. The adhesive spraying device for producing graphene thermal conductive sheets as described in claim 1, characterized in that: It also includes support feet, and several support feet are fixedly connected to the bottom surface of the base.

9. The adhesive spraying device for producing graphene thermal conductive sheets as described in claim 1, characterized in that: It also includes a PLC controller, which is electrically connected to the thickness control mechanism and the moving glue spraying mechanism respectively.

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