Thermally conductive paste application device

Abstract

The application aims to provide a heat-conducting paste brushing device, which comprises a rack, a paste dispensing assembly and a brushing assembly. The rack is provided with a feeding belt for transferring a heat sink. The paste dispensing assembly comprises a paste dispensing driver and a paste brushing needle. The paste dispensing driver is arranged on the rack, and the paste brushing needle is arranged on the output shaft of the paste dispensing driver. The paste dispensing driver is used to drive the paste brushing needle to approach or move away from the feeding belt. The brushing assembly comprises a brushing driver, a scraper, a brushing plate and a lifting driver. The lifting driver is arranged on the rack, and the brushing plate is arranged on the output shaft of the lifting driver. The brushing plate is provided with a brushing groove. The inner bottom wall of the brushing groove is provided with a brushing hole. When the lifting driver drives the brushing plate to descend, the brushing hole abuts against the heat sink. The brushing driver is arranged on the rack, and the scraper is arranged on the output shaft of the brushing driver. The brushing driver is used to drive the scraper to reciprocate in the brushing groove.

Description

Technical Field

[0001] This invention relates to the technical field of radiator processing, and in particular to a thermal paste application device. Background Technology

[0002] Zigzag heat sinks are often used on heat-generating components such as chips that generate a lot of heat. To improve heat transfer efficiency, thermal paste is often applied to the side of the heat sink that contacts the heat-generating component. This eliminates the gap between the heat sink and the heat-generating component, effectively improving heat transfer efficiency.

[0003] To facilitate user installation, thermal paste is pre-applied to the radiators. Currently, this is mainly done manually by workers using jigs and fixtures. However, due to the large production volume of radiators and the varying models, the area requiring thermal paste application differs. Manual application is inefficient and requires significant labor costs. Therefore, to replace manual operation, the thermal paste application device of this application is proposed. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide a thermal paste application device that can automatically and in batches apply thermal paste to radiators.

[0005] The objective of this invention is achieved through the following technical solution:

[0006] A thermal paste application device, comprising:

[0007] A frame, on which a feed belt for transferring radiators is provided;

[0008] A paste dispensing assembly, comprising a paste dispensing drive and a paste dispensing needle, wherein the paste dispensing drive is mounted on the frame, and the paste dispensing needle is mounted on the output shaft of the paste dispensing drive; the paste dispensing drive is used to move the paste dispensing needle closer to or away from the feed belt; and

[0009] The coating assembly includes a coating drive, a scraper, a coating plate, and a lifting drive. The lifting drive is mounted on the frame, and the coating plate is mounted on the output shaft of the lifting drive. The coating plate has a coating groove, and the inner bottom wall of the coating groove has a coating hole. The lifting drive is used to drive the coating plate to descend so that the coating hole abuts against the heat sink. The coating drive is mounted on the frame, and the scraper is mounted on the output shaft of the coating drive. The coating drive is used to drive the scraper to reciprocate within the coating groove.

[0010] Optionally, the lifting drive includes multiple lifting cylinders, each of which is divided into two groups. The lifting cylinders of the two groups are respectively disposed on both sides of the frame, and the output shaft of each lifting cylinder is connected to the coating plate.

[0011] Optionally, the thermal paste application device further includes a cleaning component, which includes a transverse cylinder, a transverse plate, a cleaning drive, and a roller brush. The transverse plate is slidably disposed on the bottom side wall of the application plate. The output shaft of the transverse cylinder is connected to the transverse plate. The roller brush is rotatably disposed on the transverse plate. The cleaning drive is disposed on the transverse plate, and the output shaft of the cleaning drive is connected to the roller brush. The cleaning drive is used to drive the roller brush to rotate continuously. The transverse cylinder is used to drive the transverse plate to slide relative to the application plate, so that the roller brush reciprocates past the bottom of the application hole.

[0012] Optionally, the transverse cylinder is disposed on the coating plate.

[0013] Optionally, the transverse cylinder is mounted on the frame, and the cleaning assembly further includes a clamping cylinder, an insert block, and a clamping member. The clamping member is mounted on the transverse plate, the clamping cylinder is mounted on the coating plate, and the insert block is mounted on the output shaft of the clamping cylinder. The clamping cylinder is used to move the insert block closer to or away from the clamping member so that the clamping member releases or clamps the output shaft of the transverse cylinder.

[0014] Optionally, the cleaning assembly further includes a sliding cylinder and a sliding plate. The sliding plate is slidably disposed on one side of the frame, and the sliding cylinder is disposed on the sliding plate. The sliding cylinder is used to drive the sliding plate to slide closer to the holding member so that the output shaft of the sliding cylinder is inserted into the holding member.

[0015] Optionally, the clamping component includes a clamping seat, a clamping block, and a top-pressure spring. The clamping seat is disposed on the transverse plate and has interconnected clamping holes and a sliding groove. The clamping holes are used to receive the output shaft of the transverse cylinder. The clamping block is slidably disposed in the sliding groove, and the top-pressure spring is located in the sliding groove so that the top-pressure spring abuts against the clamping block and the clamping seat respectively. The top-pressure spring is used to push the clamping block so that one end of the clamping block extends into the clamping hole, thereby clamping the output shaft of the transverse cylinder.

[0016] Optionally, the insert block has a first inclined surface, and the locking block has a second inclined surface. When the locking cylinder drives the insert block to approach the locking block, the first inclined surface pushes against the second inclined surface, causing the locking block to compress the top pressure spring and exit the locking hole.

[0017] Optionally, the cleaning assembly further includes a material clamping component disposed on one end of the transverse plate, and one end of the roller brush is connected to the material clamping component.

[0018] Optionally, the clamping component includes a ball bearing, a sleeve, a cover, a linear bearing, a clamping rod, a first push ball bearing, and a clamping spring. The ball bearing is disposed on the transverse plate, the sleeve passes through the ball bearing, the linear bearing is disposed within the sleeve, and the cover is disposed at one end of the sleeve so that the cover and the sleeve together clamp the linear bearing. The clamping rod passes through the first push ball bearing and the linear bearing in sequence, and the clamping spring is sleeved on the clamping rod. The clamping spring is used to push the clamping rod so that the clamping rod moves closer to clamp the roller brush.

[0019] Compared with the prior art, the present invention has at least the following advantages:

[0020] The thermal paste application equipment of the present invention includes a frame, a paste dispensing assembly, and a coating assembly. A feed belt for transporting heat sinks is mounted on the frame. The paste dispensing assembly includes a paste dispensing drive and a paste-applying needle. The paste dispensing drive is mounted on the frame, and the paste-applying needle is mounted on the output shaft of the paste dispensing drive. The paste dispensing drive moves the paste-applying needle closer to or away from the feed belt. The coating assembly includes a coating drive, a scraper, a coating plate, and a lifting drive. The lifting drive is mounted on the frame, and the coating plate is mounted on the output shaft of the lifting drive. The coating plate has a coating groove, and a coating hole is formed on the inner bottom wall of the coating groove. When the lifting drive lowers the coating plate, the coating hole abuts against the heat sink. The coating drive is mounted on the frame, and the scraper is mounted on the output shaft of the coating drive. The coating drive drives the scraper to reciprocate within the coating groove. This achieves automatic dotting and coating of thermal paste, replacing manual operation, and can effectively improve processing efficiency and quality, especially for batch heat sinks. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the structure of a thermal paste application device according to one embodiment of the present invention;

[0023] Figure 2 for Figure 1 A partial structural schematic diagram of the thermal paste application equipment shown;

[0024] Figure 3 This is a schematic diagram of the structure of a cleaning component according to one embodiment of the present invention;

[0025] Figure 4 for Figure 3 A partial structural diagram of the cleaning component is shown;

[0026] Figure 5 for Figure 3 The diagram shows a partial structural schematic of the cleaning components.

[0027] Figure 6 This is a cross-sectional structural schematic diagram of a retaining member according to an embodiment of the present invention;

[0028] Figure 7 This is a cross-sectional structural diagram of a clip component according to an embodiment of the present invention;

[0029] Figure 8 for Figure 3 A partial structural diagram of the cleaning component from another angle.

[0030] Explanation of reference numerals in the attached figures:

[0031] 10. Thermal paste application equipment; 20. Radiator; 100. Frame; 200. Dispensing assembly; 300. Applying assembly; 400. Feeding belt; 210. Dispensing drive; 220. Applying needle; 310. Lifting drive; 320. Applying plate; 330. Applying drive; 340. Scraper; 321. Applying groove; 322. Applying hole; 311. Lifting cylinder; 500. Cleaning assembly; 510. Lateral movement cylinder; 520. Lateral movement plate; 530. Cleaning drive; 540. Roller brush; 550. Holding cylinder; 5 60. Insert block; 570. Clamping component; 581. Sliding cylinder; 582. Slide plate; 571. Clamping seat; 572. Clamping block; 573. Top pressure spring; 5711. Clamping hole; 5712. Slide groove; 561. First inclined surface; 5721. Second inclined surface; 590. Material clamping component; 591. Ball bearing; 592. Sleeve; 593. Cover; 594. Linear bearing; 595. Clamping rod; 596. First push ball bearing; 597. Material clamping spring; 598. Limiting block; 599. Second push ball bearing; 323. Clearance groove. Detailed Implementation

[0032] To facilitate understanding of the present invention, a more comprehensive description will be given below with reference to the accompanying drawings. The drawings illustrate preferred embodiments of the invention.

[0033] like Figure 1As shown, a thermal paste application device 10 includes a frame 100, a paste dispensing assembly 200, and a coating assembly 300. A feed belt 400 for transporting a heatsink 20 is mounted on the frame 100. The paste dispensing assembly 200 includes a paste dispensing drive 210 and a coating needle 220. The paste dispensing drive 210 is mounted on the frame 100, and the coating needle 220 is mounted on the output shaft of the paste dispensing drive 210. The paste dispensing drive 210 drives the coating needle 220 to move closer to or away from the feed belt 400. The coating assembly 300 includes a lifting drive 310, a coating plate 320, and a coating drive 330. The scraper 340 and the lifting drive 310 are mounted on the frame 100. The coating plate 320 is mounted on the output shaft of the lifting drive 310. The coating plate 320 has a coating groove 321 and a coating hole 322 on the inner bottom wall of the coating groove 321. The lifting drive 310 is used to drive the coating plate 320 to descend so that the coating hole 322 abuts against the heat sink 20. The coating drive 330 is mounted on the frame 100. The scraper 340 is mounted on the output shaft of the coating drive 330. The coating drive 330 is used to drive the scraper 340 to reciprocate within the coating groove 321.

[0034] It should be noted that both the dispensing assembly 200 and the application assembly 300 are mounted on the frame 100, and are spaced apart along the conveying direction of the feed belt 400. Thus, the radiators 20 are placed on the feed belt 400 and moved from one end to the other, so that each radiator 20 passes sequentially through the dispensing assembly 200 and the application assembly 300. Specifically, the dispensing drive 210 is mounted transversely across the feed belt 400. In one embodiment, the dispensing drive 210 includes two motor-driven lead screw modules. For ease of description, the two lead screw modules are defined as the first module and the second module, respectively. The first module is mounted on the frame 100, and the second module is mounted on the output shaft of the first module. The first and second modules are mounted perpendicularly. The application needle 220 is mounted on the output shaft of the second module. Thus, the dispensing drive 210 drives the application needle 220 to perform lateral and vertical movements along a vertical plane. This allows the applicator needle 220 to apply a small amount of thermal paste to each heat sink 20. Further, a lifting drive 310 is mounted on the frame 100, and an applicator plate 320 is mounted on the output shaft of the lifting drive 310. The applicator plate 320 also spans above the feed belt 400, and is driven by the lifting drive 310 to move up and down. An applicator groove 321 is formed on the applicator plate 320, and an applicator hole 322 is formed on the inner bottom wall of the applicator groove 321. Thus, when the lifting drive 310 lowers the applicator plate 320, the applicator hole 322 can abut against the heat sink 20, so that the thermal paste applied to the heat sink 20 is located within the applicator hole 322. An applicator drive 330 is also mounted across the feed belt 400 and is positioned above the applicator plate 320. In one embodiment, the structure of the applicator drive 330 is identical to that of the applicator drive 210. Furthermore, the scraper 340 is made of silicone. The scraper 340 is driven down by the application drive 330 to abut against the inner bottom wall of the application groove 321. Then, the scraper 340 slides along the inner bottom wall of the application groove 321, causing it to apply the thermal paste from the application hole 322 into a sheet. This achieves automatic dot application and sheet application of thermal paste, replacing manual operation. Especially for batch production of heat sinks 20, this effectively improves processing efficiency and quality.

[0035] like Figure 1 and Figure 2 As shown, in one embodiment, the lifting drive 310 includes a plurality of lifting cylinders 311, each of which is divided into two groups. The two groups of lifting cylinders 311 are respectively disposed on both sides of the frame 100, and the output shaft of each lifting cylinder 311 is connected to the coating plate 320.

[0036] It should be noted that, for example, four lifting cylinders 311 are provided, with two of the four lifting cylinders 311 located on one side of the frame 100 and the other two located on the other side. In this way, the four lifting cylinders 311 together drive the coating plate 320 to move up and down.

[0037] like Figure 2 As shown, in one embodiment, the frame 100 is also provided with a number of limiting posts, each of which corresponds to an adjacent lifting cylinder 311. Each limiting post is used to push against the coating plate 320. In order to ensure that the coating plate 320 can be accurately lowered to the required height, the limiting posts are provided to push and limit the coating plate 320.

[0038] like Figure 2 and Figure 3 As shown, in one embodiment, the thermal paste application device 10 further includes a cleaning component 500. The cleaning component 500 includes a transverse cylinder 510, a transverse plate 520, a cleaning drive 530, and a roller brush 540. The transverse plate 520 is slidably disposed on the bottom side wall of the application plate 320. The output shaft of the transverse cylinder 510 is connected to the transverse plate 520. The roller brush 540 is rotatably disposed on the transverse plate 520. The cleaning drive 530 is disposed on the transverse plate 520, and the output shaft of the cleaning drive 530 is connected to the roller brush 540. The cleaning drive 530 is used to drive the roller brush 540 to rotate continuously. The transverse cylinder 510 is used to drive the transverse plate 520 to slide relative to the application plate 320, so that the roller brush 540 reciprocates through the bottom of the application hole 322.

[0039] It should be noted that, to prevent thermal paste from continuously adhering to the inner wall of the application hole 322 and eventually dripping onto the radiator 20 and causing contamination, a cleaning component 500 is provided to periodically clean the bottom of the application hole 322. Specifically, a transverse plate 520 is slidably mounted on the application plate 320 via a slide rail, allowing the transverse plate 520 to reciprocate relative to the application plate 320. A transverse cylinder 510 drives the transverse plate 520 to reciprocate. A roller brush 540 is rotatably mounted on the transverse plate 520 via a bearing, and a cleaning drive 530 is mounted on the transverse plate 520, driving the roller brush 540 to rotate continuously. In one embodiment, the cleaning drive 530 is a motor, thus driving the roller brush 540 to rotate to wipe away the thermal paste adhering to the bottom of the application hole 322.

[0040] In one embodiment, a transverse cylinder 510 is disposed on the coating plate 320. This allows the cleaning assembly 500 to move up and down in tandem with the coating plate 320.

[0041] Furthermore, such as Figure 2 , Figure 3 and Figure 4As shown, in one embodiment, the transverse cylinder 510 is mounted on the frame 100. The cleaning assembly 500 also includes a clamping cylinder 550, an insert block 560, and a clamping member 570. The clamping member 570 is mounted on the transverse plate 520, the clamping cylinder 550 is mounted on the coating plate 320, and the insert block 560 is mounted on the output shaft of the clamping cylinder 550. The clamping cylinder 550 is used to move the insert block 560 closer to or further away from the clamping member 570, so that the clamping member 570 releases or clamps the output shaft of the transverse cylinder 510.

[0042] It should be noted that the transverse transfer cylinder 510 is mounted on the coating plate 320. The transverse transfer cylinder 510 can be mounted in two ways. One is that the transverse transfer cylinder 510 is mounted across the feed belt 400 on the coating plate 320. This method has the following drawbacks: because the feed belt 400 has a certain width, in order to accommodate the transfer of radiators 20 of different sizes, the width of the feed belt 400 is designed to be greater than 0.8 meters, thus enabling it to accommodate the transfer of radiators of different widths. Since the transverse transfer cylinder 510 needs to drive the transverse transfer plate 520 to slide laterally across the feed belt 400, the length of the transverse transfer cylinder 510 is also nearly 0.8 meters. The output shaft extends nearly 0.8 meters. Therefore, when the transverse cylinder 510 is mounted across the feed belt 400 on the coating plate 320, and the output shaft of the transverse cylinder 510 extends to drive the transverse plate 520 to slide to one side, the excessively long extension of the structure connecting the output shaft of the transverse cylinder 510 and the transverse plate 520 causes instability when the transverse plate 520 slides relative to the coating plate 320. After prolonged use, the weight of the output shaft of the transverse cylinder 510 itself and the weight of the structure connected to the coating plate 320 cause a gap to form between the output shaft of the transverse cylinder 510 and the cylinder body of the transverse cylinder 510, resulting in a short lifespan for the transverse cylinder 510. Secondly, the transverse cylinder 510 is installed extending to one side of the coating plate 320, that is, the cylinder body of the transverse cylinder 510 extends out from one side of the frame 100. This installation method causes the center of gravity of the application plate 320 to shift significantly towards the side closer to the horizontal movement cylinder 510, making it difficult for the application plate 320 to maintain a horizontal state during lifting and lowering, thus affecting the application effect of the thermal paste to the radiator. Therefore, to solve the problem of fixing the horizontal movement cylinder 510 to the application plate 320, the technical solution of this embodiment is proposed. Specifically, the retaining member 570 is fixedly installed on the horizontal movement plate 520, the retaining cylinder 550 is installed on the application plate 320, and the insert block 560 is installed on the output shaft of the retaining cylinder 550. The retaining cylinder 550 drives the insert block 560 to move closer to or away from the retaining member 570. When the insert block 560 moves closer to the retaining member 570, the retaining member 570 releases its connection to the output shaft of the horizontal movement cylinder 510. When the insert block 560 moves away from the retaining member 570, the retaining member 570 can restore its engagement with the output shaft of the horizontal movement cylinder 510. Thus, when the application plate 320 is moving up and down normally to apply heat-dissipating paste to the radiator, the output shaft of the transverse cylinder 510 and the holding member 570 are both kept in the disconnected state.When it is necessary to slide the transverse plate 520 so that the roller brush 540 can clean the coating hole 322, the lifting drive 310 drives the coating plate 320 to rise. Then, the holding cylinder 550 drives the insert block 560 to approach the holding member 570, and the output shaft of the transverse cylinder 510 is inserted into the holding member 570. Next, the holding cylinder 550 drives the insert block 560 away from the holding member 570, so that the output shaft of the transverse cylinder 510 and the holding member 570 are stably engaged. In this way, the transverse cylinder 510 can drive the transverse plate 520 to slide relative to the coating plate 320. After cleaning is completed, the holding cylinder 550 drives the insert block 560 to approach the holding member 570 again, so that the output shaft of the transverse cylinder 510 can be disconnected from the holding member 570. In this way, the lifting drive 310 can continue to drive the coating plate 320 to move up and down normally. Thus, the coating plate 320 does not need to drive the transverse cylinder 510 to move up and down.

[0043] like Figure 3 and Figure 5 As shown, in one embodiment, the cleaning assembly 500 further includes a sliding cylinder 581 and a sliding plate 582. The sliding plate 582 is slidably disposed on one side of the frame 100, and the transverse cylinder 510 is disposed on the sliding plate 582. The sliding cylinder 581 is used to drive the sliding plate 582 to slide close to the retaining member 570 so that the output shaft of the transverse cylinder 510 is inserted into the retaining member 570.

[0044] It should be noted that, in order for the transverse cylinder 510, whose output shaft is in a retracted state, to approach the retaining member 570 and for the output shaft of the transverse cylinder 510 to be inserted into the retaining member 570, a sliding cylinder 581 is provided to drive the sliding plate 582 to slide, thereby driving the transverse cylinder 510 to slide.

[0045] like Figure 4 and Figure 6 As shown, in one embodiment, the clamping member 570 includes a clamping seat 571, a clamping block 572, and a top-pressure spring 573. The clamping seat 571 is disposed on the transverse plate 520. The clamping seat 571 has a clamping hole 5711 and a sliding groove 5712 that are interconnected. The clamping hole 5711 is used to receive the output shaft of the transverse cylinder 510. The clamping block 572 is slidably disposed in the sliding groove 5712. The top-pressure spring 573 is located in the sliding groove 5712 so that the top-pressure spring 573 abuts against the clamping block 572 and the clamping seat 571 respectively. The top-pressure spring 573 is used to push the clamping block 572 so that one end of the clamping block 572 extends into the clamping hole 5711, so that the clamping block 572 clamps the output shaft of the transverse cylinder 510.

[0046] It should be noted that the clamping seat 571 is mounted on the transverse plate 520, and a clamping hole 5711 is formed on the clamping seat 571 facing the transverse cylinder 510. A sliding groove 5712 is also formed on the clamping seat 571, and the clamping block 572 and the top pressure spring 573 are both located within the sliding groove 5712, with the top pressure spring 573 abutting against both the clamping block 572 and the clamping seat 571. Thus, under the elastic thrust of the top pressure spring 573, one end of the clamping block 572 extends into the clamping hole 5711. It should be noted that the sliding groove 5712 and the clamping hole 5711 are perpendicular to each other; therefore, when one end of the clamping block 572 extends into the clamping hole 5711, it can clamp the output shaft of the transverse cylinder 510. For example, a protrusion with a diameter larger than the output shaft is provided on the end of the output shaft of the transverse cylinder 510. The diameter of the protrusion is smaller than the inner diameter of the locking hole 5711. When the locking block 572 extends into the locking hole 5711, the inner diameter of the locking hole 5711 at that position is smaller than the diameter of the protrusion. In this way, the locking block 572 can lock the output shaft of the transverse cylinder 510. In one embodiment, two locking blocks 572 and two top pressure springs 573 are provided. Two slide grooves 5712 are provided. Each slide groove 5712 is provided with one locking block 572 and one top pressure spring 573. In this way, the two locking blocks 572 can reliably lock the output shaft of the transverse cylinder 510.

[0047] like Figure 6 As shown, in one embodiment, the insert block 560 has a first inclined surface 561, and the locking block 572 has a second inclined surface 5721. The locking cylinder 550 is used to drive the insert block 560 close to the locking block 572 so that the first inclined surface 561 pushes against the second inclined surface 5721, so that the locking block 572 compresses the top pressure spring 573 to exit the locking hole 5711.

[0048] It should be noted that the inclination angle of the first inclined surface 561 is consistent with the inclination angle of the second inclined surface 5721. Thus, as the insert block 560 is inserted into the retaining seat 571, the first inclined surface 561 pushes against the second inclined surface 5721, causing the retaining block 572 to slide into the slide groove 5712. At this time, one end of the retaining block 572 is away from the output shaft of the transverse cylinder 510, so the output shaft of the transverse cylinder 510 can extend out or be inserted into the retaining hole 5711.

[0049] like Figure 7 As shown, in one embodiment, the cleaning component 500 further includes a material clamping element 590, which is disposed on one end of the transverse plate 520, and one end of the roller brush 540 is connected to the material clamping element 590.

[0050] It should be noted that since the roller brush 540 needs to be replaced after a certain period of use, a retaining device 590 is provided in this embodiment to facilitate the replacement of the roller brush 540. This device allows the roller brush 540 to be quickly installed or removed. The retaining device 590 is installed on the end of the transverse plate 520 away from the cleaning drive component 530, so that one end of the roller brush 540 is connected to the output shaft of the cleaning drive component 530, and the other end of the roller brush 540 is connected to the retaining device 590.

[0051] like Figure 7 As shown, in one embodiment, the clamping component 590 includes a ball bearing 591, a sleeve 592, a cover 593, a linear bearing 594, a clamping rod 595, a first push ball bearing 596, and a clamping spring 597. The ball bearing 591 is disposed on the transverse plate 520. The sleeve 592 passes through the ball bearing 591. The linear bearing 594 is disposed inside the sleeve 592. The cover 593 is disposed at one end of the sleeve 592 so that the cover 593 and the sleeve 592 together clamp the linear bearing 594. The clamping rod 595 passes through the first push ball bearing 596 and the linear bearing 594 in sequence. The clamping spring 597 is sleeved on the clamping rod 595. The clamping spring 597 is used to push the clamping rod 595 so that the clamping rod 595 approaches to clamp the roller brush 540.

[0052] It should be noted that the ball bearing 591 is fixedly mounted on the transverse plate 520. The sleeve 592 is inserted into the ball bearing 591 from the side closest to the roller brush 540. The linear bearing 594 is installed inside the sleeve 592. The cover 593 is screwed into the sleeve 592, so that the cover 593 clamps the linear bearing 594 inside the sleeve 592. The locking rod 595 is inserted into the linear bearing 594 from the side away from the roller brush 540. In this way, the locking rod 595 can slide along the axial direction of the linear bearing 594, and the locking rod 595 can rotate stably relative to the transverse plate 520. Furthermore, the locking spring 597 is sleeved on the locking rod 595. The locking spring 597 pushes the locking rod 595, so that the locking rod 595 tends to move closer to the roller brush 540. Thus, when the roller brush 540 needs to be installed, a pulling force is applied to the clamping rod 595 away from the cleaning drive member 530. The clamping rod 595 slides axially along the linear bearing 594 away from the cleaning drive member 530. Then, the roller brush 540 is placed between the clamping rod 595 and the cleaning drive member 530. The clamping rod 595 is then released. Under the elastic thrust of the clamping spring 597, the clamping rod 595 moves closer to the roller brush 540 to clamp the roller brush 540 together with the output shaft of the cleaning drive member 530. Thus, as the cleaning drive member 530 drives the roller brush 540 to rotate, the clamping rod 595 rotates with the roller brush 540 relative to the transverse plate 520. When the roller brush 540 needs to be removed, a pulling force is also applied to the clamping rod 595.

[0053] In one embodiment, the roller brush 540 has a multi-faceted groove at one end near the cleaning drive member 530, and a multi-faceted post is provided on the output shaft of the cleaning drive member 530, which is adapted to be inserted into the multi-faceted groove. In this way, it is ensured that the cleaning drive member 530 can stably drive the roller brush 540 to rotate.

[0054] like Figure 7 and Figure 8 As shown, in one embodiment, the clamping component 590 further includes a limiting block 598, which is disposed on the transverse plate 520 so that one end of the clamping spring 597 abuts against the limiting block 598. In this way, the clamping spring 597 reliably pushes the clamping rod 595.

[0055] like Figure 7 As shown, in one embodiment, a second push ball bearing 599 is also provided between the clamping spring 597 and the clamping rod 595. In this way, when the clamping rod 595 rotates with the roller brush 540, it will not drive the clamping spring 597 to rotate, thus avoiding friction between the clamping spring 597 and the limiting block 598 and the clamping rod 595.

[0056] like Figure 3 As shown, in one embodiment, the coating plate 320 has a plurality of clearance grooves 323 on the side away from the coating groove 321. Each clearance groove 323 is connected to the coating hole 322, and each clearance groove 323 is distributed around the coating hole 322. The coating assembly 300 also includes a plurality of material blocking blocks, each material blocking block being housed in each clearance groove 323, so that the material blocking blocks together form a material blocking area connected to the coating hole 322.

[0057] It should be noted that the size of the baffle area is consistent with the aperture of the coating hole 322. In one embodiment, the baffle is made of silicone. Thus, when the coating plate 320 descends, the baffles abut against the heat sink 20, rather than the coating plate 320 directly contacting the heat sink 20. This prevents the coating plate 320 from scratching the surface of the heat sink 20 and effectively ensures the appearance quality of the heat sink 20.

[0058] The above-described embodiments are merely illustrative of several implementations of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the invention patent. Unless otherwise specifically defined, the installation / fixing / setting mentioned in this invention can be understood to include, but is not limited to, locking and fixing using screws / bolts, and welding. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this patent should be determined by the appended claims.

Claims

1. A thermal paste application device, characterized in that, include: A frame, on which a feed belt for transferring radiators is provided; The paste dispensing assembly includes a paste dispensing drive and a paste application needle. The paste dispensing drive is mounted on the frame, and the paste application needle is mounted on the output shaft of the paste dispensing drive. The paste dispensing drive is used to drive the paste application needle to move closer to or away from the feeding belt. The coating assembly includes a coating drive, a scraper, a coating plate, and a lifting drive. The lifting drive is mounted on the frame, and the coating plate is mounted on the output shaft of the lifting drive. The coating plate has a coating groove, and the inner bottom wall of the coating groove has a coating hole. The lifting drive is used to drive the coating plate to descend so that the coating hole abuts against the heat sink. The coating drive is mounted on the frame, and the scraper is mounted on the output shaft of the coating drive. The coating drive is used to drive the scraper to reciprocate within the coating groove. A cleaning assembly includes a transverse cylinder, a transverse plate, a cleaning drive, a roller brush, a clamping cylinder, an insert block, and a clamping element. The transverse plate is slidably disposed on the bottom side wall of the coating plate. The transverse cylinder is disposed on the frame, and its output shaft is connected to the transverse plate. The roller brush is rotatably disposed on the transverse plate. The cleaning drive is disposed on the transverse plate, and its output shaft is connected to the roller brush. The cleaning drive is used to drive the roller brush to rotate continuously. The transverse cylinder is used to drive the transverse plate to slide relative to the coating plate, so that the roller brush reciprocates past the bottom of the coating hole. The clamping element is disposed on the transverse plate, the clamping cylinder is disposed on the coating plate, and the insert block is disposed on the output shaft of the clamping cylinder. The clamping cylinder is used to move the insert block closer to or away from the clamping element, so that the clamping element releases or clamps the output shaft of the transverse cylinder.

2. The thermal grease application device according to claim 1, characterized in that, The lifting drive includes multiple lifting cylinders, each of which is divided into two groups. The lifting cylinders of the two groups are respectively arranged on both sides of the frame, and the output shaft of each lifting cylinder is connected to the coating plate.

3. The thermal paste application device according to claim 1, characterized in that, The cleaning assembly also includes a sliding cylinder and a sliding plate. The sliding plate is slidably disposed on one side of the frame, and the sliding cylinder is disposed on the sliding plate. The sliding cylinder is used to drive the sliding plate to slide closer to the clamping member so that the output shaft of the sliding cylinder is inserted into the clamping member.

4. The thermal paste application device according to claim 3, characterized in that, The clamping component includes a clamping seat, a clamping block, and a top-pressure spring. The clamping seat is disposed on the transverse plate and has interconnected clamping holes and a sliding groove. The clamping holes are used to receive the output shaft of the transverse cylinder. The clamping block is slidably disposed in the sliding groove, and the top-pressure spring is located in the sliding groove so that the top-pressure spring abuts against the clamping block and the clamping seat respectively. The top-pressure spring is used to push the clamping block so that one end of the clamping block extends into the clamping hole, thereby clamping the output shaft of the transverse cylinder.

5. The thermal paste application device according to claim 4, characterized in that, The insert block has a first inclined surface, and the locking block has a second inclined surface. When the locking cylinder moves the insert block close to the locking block, the first inclined surface pushes against the second inclined surface, causing the locking block to compress the top pressure spring and exit the locking hole.

6. The thermal paste application device according to claim 1, characterized in that, The cleaning assembly also includes a material clamping component, which is disposed on one end of the transverse plate, and one end of the roller brush is connected to the material clamping component.

7. The thermal paste application device according to claim 6, characterized in that, The clamping component includes a ball bearing, a sleeve, a cover, a linear bearing, a clamping rod, a first push ball bearing, and a clamping spring. The ball bearing is disposed on the transverse plate, the sleeve passes through the ball bearing, the linear bearing is disposed within the sleeve, and the cover is disposed at one end of the sleeve so that the cover and the sleeve together clamp the linear bearing. The clamping rod passes through the first push ball bearing and the linear bearing in sequence, and the clamping spring is sleeved on the clamping rod. The clamping spring is used to push the clamping rod so that the clamping rod moves closer to clamp the roller brush.

Images