Supercharged heat-conducting silicone grease dispensing mechanism
By combining a pressure cylinder and a screw pump at the top of the glue storage tank, the problem of uneven dispensing of high-viscosity thermal conductive silicone grease was solved, achieving efficient and uniform dispensing, and improving production efficiency and product quality.
Patent Information
- Application Number
- CN202520439134.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-13
- Publication Date
- 2026-02-24
- Estimated Expiration
- 2035-03-13
AI Technical Summary
Existing automatic gluing equipment cannot provide sufficient power to propel the high-viscosity thermal grease smoothly, resulting in intermittent dispensing and affecting production efficiency and product quality.
A pressurized dispensing mechanism is adopted. By setting a pressure cylinder on the top of the glue storage tank, the piston is driven to apply pressure to the glue. Combined with a screw pump and a buffer, the dispensing pressure is increased to ensure uniform distribution of the glue.
It achieves efficient and uniform dispensing operation, improves the continuity and uniformity of high-viscosity thermal grease, and ensures the quality of product application.
Smart Images
Figure CN223931797U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of dispensing mechanism technology, and more specifically, to a pressurized thermal conductive silicone grease dispensing mechanism. Background Technology
[0002] Thermal grease, also known as thermal paste or heat dissipation grease, has high thermal conductivity and is a material that can quickly transfer heat from the heat source to the heat dissipation device, effectively reducing the temperature of the heat-generating element. It is also non-corrosive to common materials such as metals and plastics. Traditional application methods involve manual application using fingers, scrapers, or brushes, which makes it difficult to ensure uniform distribution of the thermal grease across the entire contact surface. This also results in low efficiency, time-consuming and labor-intensive processes, high costs, and inconsistent product quality. Currently, most automated dispensing equipment on the market includes a storage container, a dispensing valve, and a dispensing head. The dispensing valve opens and closes to release the adhesive from the storage container to the dispensing head. However, when applying high-viscosity adhesives like thermal grease, it is difficult to provide sufficient force to propel the adhesive smoothly, easily leading to intermittent dispensing, affecting production efficiency, and causing uneven application, thus reducing product quality. Utility Model Content
[0003] The purpose of this invention is to overcome the above-mentioned defects in the prior art and provide a pressure-boosting thermal grease dispensing mechanism that can increase dispensing pressure, achieve efficient and uniform dispensing operation, and ensure the quality of grease application.
[0004] To achieve the above objectives, this utility model provides a pressurized thermal conductive silicone grease dispensing mechanism, including a fixed frame, a Y-axis module, a Z-axis module, and a pressurized dispensing mechanism. The Y-axis module is horizontally mounted on the fixed frame via a Y-axis mounting base, and the Z-axis module is mounted on the translational part of the Y-axis module via a Z-axis mounting base. The pressurized dispensing mechanism includes a screw pump, a screw drive device, a buffer, a glue storage tank, a pressure cylinder, a piston, a glue dispensing connector, and a glue dispensing head. The screw pump is vertically mounted downwards on the lifting part of the Z-axis module via the buffer. The screw drive device is mounted... The screw pump is located at the top, with its output section connected to the upper end of the internal screw, which drives the pump to rotate. The glue outlet of the glue storage tank is connected to the glue inlet on the side wall of the screw pump, which communicates with the inside of the tank. The glue pressing cylinder is fixedly installed at the top of the glue storage tank. The piston is movably installed inside the glue storage tank and above the glue. The output shaft of the glue pressing cylinder passes through the top of the glue storage tank and is connected to the piston, driving it to move up and down. The glue outlet head is connected to the glue outlet of the screw pump through a glue outlet connector. The bottom end of the glue outlet head has several evenly arranged glue outlet holes.
[0005] Preferably, the glue dispensing connector has an internal glue outlet that connects to the glue storage chamber inside the glue dispensing head.
[0006] Preferably, the rubber storage cavity is configured as a trapezoidal structure with the opening size gradually increasing from top to bottom.
[0007] Preferably, the buffer is configured as a spring-loaded buffer support, the screw drive device is configured as a screw drive motor, the output shaft of the screw drive motor is connected to the upper end of the internal screw of the screw pump and drives it to rotate, the buffer support is sleeved on the outside of the connection between the screw drive motor and the screw pump, and the back of the buffer support is fixedly connected to the lifting part of the Z-axis module.
[0008] Preferably, the bottom of the Z-axis mounting base is provided with a product clamping device for pressing the product during the application of thermal grease, and the product clamping device is located on one side of the screw pump.
[0009] Preferably, the product clamping device includes a cylinder mounting base, upper and lower cylinders, a transmission plate, and pressure rods. The upper and lower cylinders are mounted on the Z-axis mounting base via the cylinder mounting base. The upper and lower cylinders are connected to the transmission plate and drive it to move up and down. The pressure rods are provided in two and are horizontally spaced on both sides of the front of the transmission plate.
[0010] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0011] This invention features a simple structure and reasonable design. By installing a pressure cylinder at the top of the glue storage tank that can drive the internal piston, pressure is applied to the glue in the storage tank during dispensing, forcing the glue into the screw pump. This assists the screw pump in increasing the dispensing pressure, allowing the glue to pass smoothly through the dispensing hole and be evenly dispensed onto the product surface. This achieves efficient and uniform dispensing operation, and is particularly suitable for high-viscosity thermal conductive silicone grease. It improves the continuity and uniformity of dispensing, ensuring the quality of glue application on the product. Attached Figure Description
[0012] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0013] Figure 1 This is a schematic diagram of a pressurized thermal grease dispensing mechanism provided in an embodiment of this utility model;
[0014] Figure 2 This is a cross-sectional schematic diagram of a pressurized thermal grease dispensing mechanism provided in an embodiment of this utility model;
[0015] Figure 3This is a partially enlarged schematic diagram of a pressurized thermal grease dispensing mechanism provided in an embodiment of this utility model;
[0016] Figure 4 This is a cross-sectional schematic diagram of the dispensing connector, dispensing head, and product of a pressurized thermal conductive silicone grease dispensing mechanism provided in this embodiment of the utility model. Detailed Implementation
[0017] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0018] Please refer to Figure 1 The present invention provides a pressurized thermal grease dispensing mechanism, including a fixing frame 1, a Y-axis module 2, a Y-axis mounting base 21, a Z-axis module 3, a Z-axis mounting base 31, a pressurized dispensing mechanism, and other components. The components of this embodiment will be described in detail below with reference to the accompanying drawings.
[0019] like Figure 1 As shown, the Y-axis module 2 can be horizontally mounted on the fixed frame 1 via the Y-axis mounting base 21, and the Z-axis module 3 can be mounted on the translational part of the Y-axis module 2 via the Z-axis mounting base 31. In specific implementation, the Y-axis module 2 and the Z-axis module 3 provide horizontal and vertical lateral movement and lifting action, respectively, which can accurately adjust the dispensing position, meet the dispensing needs of different positions, and improve the flexibility and accuracy of dispensing.
[0020] like Figure 1 As shown, the pressurized dispensing mechanism may include a screw pump 41, a screw drive device 42, a buffer 421, a glue storage tank 43, a pressure cylinder 44, a piston 45, a glue dispensing connector 46, and a glue dispensing head 47. The screw pump 41 is vertically mounted downwards on the lifting part of the Z-axis module 3 via the buffer 421. The screw drive device 42 is mounted on the top of the screw pump 41 and its output part is connected to the upper end of the internal screw of the screw pump 41 to drive it to rotate. The glue dispensing head 47 is connected to the glue outlet of the screw pump 41 via the glue dispensing connector 46. The bottom end of the glue dispensing head 47 is provided with several evenly arranged glue dispensing holes 471.
[0021] In this embodiment, the buffer 421 can be configured as a buffer support with spring buffer, the screw drive device 42 can be configured as a screw drive motor, the output shaft of the screw drive motor is connected to the upper end of the internal screw of the screw pump 41 and drives it to rotate, the buffer support is sleeved on the outside of the connection part between the screw drive motor and the screw pump 41, and the back of the buffer support is fixedly connected to the lifting part of the Z-axis module 3.
[0022] The buffer support can prevent the dispensing head 47 from colliding and abrading with the product 10 during dispensing, thereby protecting the product 10 or the dispensing head 47 and extending its service life.
[0023] like Figure 2 As shown, the dispensing part of the storage tank 43 for storing thermal grease can be connected to the inlet port of the screw pump 41 that communicates with its interior. The pressing cylinder 44 is fixedly installed on the top of the storage tank 43, and the piston 45 is movably installed inside the storage tank 43 and above the grease. The output shaft of the pressing cylinder 44 passes through the top of the storage tank 43 and is connected to the piston 45 to drive it to move up and down.
[0024] In practice, the pressure cylinder 44 pushes the piston 45 downward in the glue storage tank 43, applying additional pressure to the thermally conductive silicone grease in the glue storage tank 43, so that the glue can enter the screw pump 41 more quickly and stably, assisting the screw pump 41 to increase the glue dispensing pressure, improving the pressurization effect of the entire pressurized dispensing mechanism, and ensuring that even if the glue viscosity is high, the dispensing task can be completed smoothly during the dispensing process, ensuring the continuity and stability of dispensing.
[0025] Furthermore, the interior of the dispensing connector 46 may be provided with a dispensing port that connects the screw pump 41 to the adhesive storage chamber 461 inside the dispensing head 47.
[0026] Preferably, the adhesive storage chamber 461 can be configured as a trapezoidal platform structure with the opening size gradually increasing from top to bottom. The adhesive storage chamber 461 can temporarily store the thermally conductive silicone grease delivered from the screw pump 41, and the trapezoidal platform design facilitates smooth flow of the adhesive and prevents blockage.
[0027] In practice, after the screw pump 41 is started, the pressure generated inside it can help to extract the thermal grease from the glue storage tank 43. The screw inside the screw pump 41 rotates under the drive of the screw drive device 42. Using the spiral structure of the screw, the thermal grease is transported to the glue storage chamber 461 of the glue dispensing connector 46, and finally extruded by the glue dispensing head 47.
[0028] like Figure 3 and Figure 4As shown, in order to prevent the product 10 from shifting during the dispensing process, the bottom of the Z-axis mounting base 31 may be provided with a product clamping device for pressing the product 10 during the dispensing of thermal grease. The product clamping device is located on one side of the screw pump 41.
[0029] Preferably, the product clamping device may include a cylinder mounting base 51, upper and lower cylinders 52, a transmission plate 53 and a pressure rod 54. The upper and lower cylinders 52 are mounted on the Z-axis mounting base 31 through the cylinder mounting base 51. The upper and lower cylinders 52 are connected to the transmission plate 53 and drive it to move up and down. There are two pressure rods 54, which are horizontally spaced on both sides of the front of the transmission plate 53.
[0030] The working principle of this embodiment is as follows:
[0031] First, driven by the Y-axis module 2 and the Z-axis module 3, the dispensing head 47 can be moved to move above the product 10 to be glued (see...). Figure 3 Then, the upper and lower cylinders 52 drive the transmission plate 53 to move downwards, so that the two pressure rods 54 press down on a local position of the product 10 (such as the two sides of the ceramic sheet 102 on the top of the heat sink 101), and make the glue dispensing head 47 directly above the product 10 to be glued between the two pressure rods 54. Then, the screw drive motor 421 drives the internal screw of the screw pump 41 to rotate, so that the thermal conductive grease inside it enters the glue dispensing connector 46 and the glue dispensing head 47 in sequence. Finally, the thermal conductive grease is evenly applied to the surface of the product 10 (ceramic sheet 102) through several evenly arranged glue dispensing holes 81 at the bottom of the glue dispensing head 47.
[0032] In summary, the pressure cylinder of this invention can apply pressure to the adhesive in the storage tank during dispensing, forcing the adhesive into the screw pump. This assists the screw pump in increasing the dispensing pressure, allowing the adhesive to pass smoothly through the dispensing hole and be evenly applied to the surface of the product. This achieves efficient and uniform dispensing operation, and is particularly suitable for high-viscosity thermal grease. It improves the continuity and uniformity of dispensing, ensuring the quality of adhesive application on the product.
[0033] The above embodiments are preferred embodiments of the present utility model, but the embodiments of the present utility model are not limited to the above embodiments. Any changes, modifications, substitutions, combinations, or simplifications made without departing from the spirit and principle of the present utility model shall be considered equivalent substitutions and shall be included within the protection scope of the present utility model.
Claims
1. A pressurized thermal grease dispensing mechanism, characterized in that: The system includes a fixed frame, a Y-axis module, a Z-axis module, and a pressurized dispensing mechanism. The Y-axis module is horizontally mounted on the fixed frame via a Y-axis mounting base. The Z-axis module is mounted on the translational part of the Y-axis module via a Z-axis mounting base. The pressurized dispensing mechanism includes a screw pump, a screw drive device, a buffer, a glue storage tank, a pressure cylinder, a piston, a dispensing connector, and a dispensing head. The screw pump is vertically mounted downwards on the lifting part of the Z-axis module via the buffer. The screw drive device is mounted on top of the screw pump, with its output part aligned with the screw... The upper end of the internal screw of the rod pump is driven and rotated. The glue outlet of the glue storage tank is connected to the glue inlet that is opened on the side wall of the screw pump and communicates with its interior. The glue pressing cylinder is fixedly installed on the top of the glue storage tank. The piston is movably installed inside the glue storage tank and located above the glue. The output shaft of the glue pressing cylinder passes through the top of the glue storage tank and is driven and connected to the piston, driving it to move up and down. The glue outlet head is connected to the glue outlet of the screw pump through the glue outlet connector. The bottom end of the glue outlet head is provided with several evenly arranged glue outlet holes.
2. The pressurized thermal grease dispensing mechanism according to claim 1, characterized in that: The dispensing connector has an internal dispensing port that connects to the dispensing port of the screw pump and a dispensing head cavity for storing adhesive.
3. The pressurized thermal grease dispensing mechanism according to claim 2, characterized in that: The rubber storage cavity is configured as a trapezoidal platform structure with the opening size gradually increasing from top to bottom.
4. The pressurized thermal grease dispensing mechanism according to claim 1, characterized in that: The buffer component is configured as a buffer support with spring buffer, the screw drive device is configured as a screw drive motor, the output shaft of the screw drive motor is connected to the upper end of the internal screw of the screw pump and drives it to rotate, the buffer support is sleeved on the outside of the connection part between the screw drive motor and the screw pump, and the back of the buffer support is fixedly connected to the lifting part of the Z-axis module.
5. The pressurized thermal grease dispensing mechanism according to claim 1, characterized in that: The bottom of the Z-axis mounting base is provided with a product clamping device for pressing the product during the application of thermal grease. The product clamping device is located on one side of the screw pump.
6. The pressurized thermal grease dispensing mechanism according to claim 5, characterized in that: The product clamping device includes a cylinder mounting base, upper and lower cylinders, a transmission plate, and pressure rods. The upper and lower cylinders are mounted on the Z-axis mounting base through the cylinder mounting base. The upper and lower cylinders are connected to the transmission plate and drive it to move up and down. There are two pressure rods, which are horizontally spaced on both sides of the front of the transmission plate.