Diamond nozzle for dispensing

Abstract

The utility model relates to the technical field of glue dispensing, in particular to a diamond nozzle for glue dispensing, which comprises a nozzle body, a first glue outlet channel is arranged in the nozzle body, a shell is sleeved on the outer side of the nozzle body, cavities are arranged on two sides in the shell, mounting plates are movably mounted in the two cavities, and a first glue outlet channel is arranged in the first glue outlet channel. Heating electric plates are mounted on the sides, close to each other, of the two mounting plates, the output ends of the two heating electric plates make contact with the outer side of the nozzle body, a threaded groove is formed in the center of the bottom end of the shell, the threaded groove is located under the first glue outlet channel, and the threaded groove is matched with threads on the outer side of the top end of an extending spray head; a second glue outlet channel is formed in the extending spray head, and the first glue outlet channel communicates with the interior of the second glue outlet channel. According to the diamond nozzle disclosed by the invention, the defect that special glue is easy to corrode by a common material is overcome through the corrosion resistance of diamond, so that the service life of the nozzle is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of dispensing technology, specifically to a diamond nozzle for dispensing. Background Technology

[0002] Currently, most dispensing nozzles in the dispensing industry are made of tungsten carbide or stainless steel. Some special adhesives are highly corrosive to tungsten carbide or stainless steel, causing the nozzles to corrode and wear easily. This results in unstable glue, scattered dots, and glue weight exceeding requirements, greatly reducing the lifespan of the nozzle. In addition, existing dispensing nozzles have two problems: first, the glue inside the nozzle may have poor flowability due to insufficient temperature, making it easy for residues to solidify inside; second, for some narrow dispensing areas, the nozzle cannot penetrate deeply, which will affect the accuracy of dispensing. Therefore, a diamond nozzle for dispensing is proposed. Utility Model Content

[0003] To address the problems in the prior art, this utility model provides a diamond nozzle for dispensing adhesive.

[0004] The technical solution adopted by this utility model to solve its technical problem is a diamond nozzle for dispensing adhesive, including a nozzle body, a first dispensing channel is opened inside the nozzle body, a shell is sleeved on the outside of the nozzle body, cavities are opened on both sides of the inner side of the shell, mounting plates are movably installed inside the two cavities, heating plates are installed on the side of the two mounting plates that are close to each other, and the output ends of the two heating plates are in contact with the outside of the nozzle body.

[0005] A threaded groove is provided at the center of the bottom end of the outer shell. The threaded groove is located directly below the first glue dispensing channel. The threaded groove is adapted to the outer thread of the top end of the extension nozzle. A second glue dispensing channel is provided inside the extension nozzle. The first glue dispensing channel and the second glue dispensing channel are internally connected.

[0006] By adopting the above technical solution, the invention of the diamond nozzle overcomes the defect of ordinary materials being easily corroded by special adhesives by leveraging the corrosion-resistant properties of diamond, thereby improving the nozzle's service life. It is applied to the encapsulation and filling of PCB boards, chips, and semiconductors. It features high wear resistance, corrosion resistance, and stable adhesive application.

[0007] The outer shell, fitted onto the outside of the nozzle body, allows the heating plate to heat the adhesive inside the nozzle body, ensuring good flowability and facilitating spraying. It can also be used to install an extension nozzle, allowing for dispensing in narrow spaces.

[0008] Specifically, a threaded rod is rotatably connected to the side of the mounting plate away from the heating plate, and the threaded rod is rotatably mounted on the outside of the housing via threads.

[0009] By adopting the above technical solution, the rotating threaded rod pushes the mounting plate toward the nozzle body, so that the heating plate is tightly attached to the outer wall of the nozzle body, ensuring heat conduction efficiency.

[0010] Specifically, spring cavities are provided on both inner sides of the outer shell, and springs are installed inside both spring cavities. Limit blocks are fixedly connected to the close ends of the two springs.

[0011] Specifically, a limiting groove is provided on the outer side of the nozzle body, and the limiting groove is used for the installation and insertion of the limiting block.

[0012] Specifically, one end of the limiting block is fixedly connected to one end of the connecting rod, and the spring is sleeved on the outside of the connecting rod.

[0013] By adopting the above technical solution, when the outer shell is fitted into the nozzle body, the limiting block is compressed back into the spring cavity. After the outer shell is in place, the spring pushes the limiting block into the limiting groove, achieving mechanical locking and preventing displacement of the outer shell due to working vibration.

[0014] Specifically, the end of the connecting rod away from the limiting block is fixedly connected to one side of the pull ring, and the pull ring is located on the outside of the outer shell.

[0015] By adopting the above technical solution, pulling the pull ring and using the connecting rod to pull the limiting block out of the limiting groove, the outer shell can be separated for maintenance or replacement of the heating module.

[0016] The beneficial effects of this utility model are:

[0017] This invention relates to a diamond nozzle for dispensing adhesives. The invention of the diamond nozzle overcomes the problem of ordinary materials being easily corroded by special adhesives by utilizing the corrosion-resistant properties of diamond, thereby improving the nozzle's service life. It is used for the packaging and filling of PCB boards, chips, and semiconductors. It features high wear resistance, corrosion resistance, and stable adhesive application.

[0018] The diamond nozzle for dispensing described in this utility model allows the heating plate to heat the adhesive inside the nozzle body by means of a shell sleeved on the outside of the nozzle body, thus ensuring good flowability and facilitating spraying. It can also be used for the installation of an extension nozzle, which can reach into narrow dispensing spaces for dispensing. Attached Figure Description

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0020] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0021] Figure 2This is a schematic diagram of the planar structure of the present invention;

[0022] Figure 3 This is a schematic diagram of the extended nozzle structure of this utility model;

[0023] In the diagram: 1. Nozzle body; 2. Threaded rod; 3. Cavity; 4. Mounting plate; 5. Heating plate; 6. Extension nozzle; 7. Spring cavity; 8. Pull ring; 9. Connecting rod; 10. Spring; 11. Limiting block; 12. Limiting groove; 13. First dispensing channel; 14. Second dispensing channel; 15. Outer shell; 16. Threaded groove. Detailed Implementation

[0024] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0025] As one embodiment of this utility model, such as Figures 1-3 As shown, the diamond nozzle for dispensing according to this utility model includes a nozzle body 1. The nozzle body 1 has a first dispensing channel 13 inside. A shell 15 is sleeved on the outside of the nozzle body 1. Cavities 3 are opened on both sides of the inner side of the shell 15. Mounting plates 4 are movably installed inside the two cavities 3. Heating plates 5 are installed on the side of the two mounting plates 4 that are close to each other. The output ends of the two heating plates 5 are in contact with the outside of the nozzle body 1.

[0026] A threaded groove 16 is provided at the center of the bottom end of the outer shell 15. The threaded groove 16 is located directly below the first glue outlet channel 13. The threaded groove 16 is adapted to the outer thread of the top end of the extension nozzle 6. A second glue outlet channel 14 is provided inside the extension nozzle 6. The first glue outlet channel 13 and the second glue outlet channel 14 are internally connected.

[0027] In use, the nozzle body 1 is made of diamond material, which utilizes its ultra-high thermal conductivity (2000–2200 W / (m·K)) to quickly transfer the heat of the heating plate 5 to the glue in the first dispensing channel 13, preventing high-viscosity glues (such as epoxy resin and hot melt glue) from clogging due to low-temperature solidification. The high wear resistance of diamond also ensures that the inner wall of the channel is smooth after long-term use, maintaining dispensing accuracy. The outer shell 15 accommodates the mounting plate 4 and the heating plate 5 through the cavity 3, forming a modular structure. During installation, it is necessary to ensure the coaxiality of the outer shell 15 and the nozzle body 1 to avoid uneven contact between the heating plate 5 and the nozzle body 1, which may lead to local overheating or heating failure. The threaded groove 16 at the bottom of the outer shell 15 is designed to facilitate quick replacement of the extension nozzle 6 to adapt to different dispensing scenarios. The extension nozzle 6 is screwed into the threaded groove 16 to align the second dispensing channel 14 with the first dispensing channel 13. The slender design of the extension nozzle 6 (customizable length) is suitable for narrow spaces.

[0028] It should be noted that the heating plate 5 needs to be connected to an external temperature control system (such as a PID controller) to set the temperature according to the type of adhesive (e.g., UV adhesive: 30–50°C, hot melt adhesive: 120–180°C) to avoid overheating that could cause the adhesive to carbonize or the diamond to graphite. The threaded groove 16 connection can be pre-coated with high-temperature resistant sealant (such as silicone sealant) to prevent the adhesive from seeping out of the interface during high-pressure dispensing. The extension nozzle 6 can be made of PTFE material, which has strong chemical inertness, resistance to strong acids, strong alkalis and organic solvents, non-stick surface, and is easy to clean. The diameter of the top of the second dispensing channel 14 should be larger than the diameter of the bottom of the first dispensing channel to facilitate the connection of the adhesives.

[0029] This utility model also includes a threaded rod 2 rotatably connected to the side of the mounting plate 4 away from the heating plate 5, and the threaded rod 2 is rotatably mounted on the outside of the housing 15 by means of threads.

[0030] During use, the mounting plate 4 is pushed towards the nozzle body 1 by rotating the threaded rod 2, so that the heating plate 5 is tightly attached to the outer wall of the nozzle body 1 to ensure heat conduction efficiency.

[0031] The present invention also includes that spring cavities 7 are provided on both inner sides of the outer shell 15, and springs 10 are installed inside the two spring cavities 7. Limiting blocks 11 are fixedly connected to the close ends of the two springs 10.

[0032] The present invention also includes a limiting groove 12 formed on the outer side of the nozzle body 1, the limiting groove 12 being used for the installation and insertion of the limiting block 11.

[0033] This utility model also includes that one end of the limiting block 11 is fixedly connected to one end of the connecting rod 9, and the spring 10 is sleeved on the outside of the connecting rod 9.

[0034] This utility model also includes a fixed connection between one end of the connecting rod 9 away from the limiting block 11 and one side of the pull ring 8, wherein the pull ring 8 is located on the outside of the outer casing 15.

[0035] When the outer shell 15 is inserted into the nozzle body 1, the limiting block 11 is squeezed and compressed back into the spring cavity 7. After the outer shell 15 is in place, the spring 10 pushes the limiting block 11 into the limiting groove 12 to achieve mechanical locking and prevent the outer shell 15 from shifting due to working vibration. Pulling the pull ring 8 will pull the limiting block 11 out of the limiting groove 12 through the connecting rod 9, so that the outer shell 15 can be separated for maintenance or replacement of the heating module.

[0036] It should be noted that the depth and width of the limiting groove 12 must match the limiting block 11 (tolerance ±0.05mm) to ensure a secure engagement. The top surface of the limiting block 11 is arc-shaped, and the bottom surface is horizontal.

[0037] In use, the outer shell 15 is first placed over the nozzle body 1 from bottom to top, with the position of the limiting block 11 aligned with the position of the limiting groove 12 beforehand. During the insertion process, the nozzle body 1 will press the two limiting blocks 11 into the spring cavity 7, thereby compressing the spring 10. After the outer shell 15 is fully fitted, the limiting blocks 11 will be pushed into the limiting groove 12 by the spring 10, allowing the limiting blocks 11 to be locked in the limiting groove 12, thus connecting the outer shell 15 and the nozzle body 1. Then, by manually turning the threaded rod 2, the rotation of the threaded rod 2 will push the mounting plate 4 towards the nozzle body 1, thereby allowing the heating plate 5 to supply power. The nozzle body 1 is contacted by the outer side of the nozzle tip. The heating plate 5 can provide heating to the nozzle body 1 after being powered by an external power source. Since the nozzle body 1 is made of diamond material, it has good thermal conductivity and will transfer the heat of the heating plate 5 to the glue in the first glue dispensing channel 13, so that the glue is heated to ensure good fluidity and facilitate spraying. When encountering a narrow glue dispensing area, the top of the extension nozzle 6 can be installed at the bottom of the housing 15 by threaded connection, so that the second glue dispensing channel 14 inside the extension nozzle 6 is connected to the first glue dispensing channel 13. In this way, the slender extension nozzle 6 can penetrate into the narrow glue dispensing area for glue dispensing.

[0038] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The descriptions of the above embodiments and specifications are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection claimed by this utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A diamond nozzle for dispensing, comprising a nozzle body (1), characterized in that, The nozzle body (1) has a first glue outlet channel (13) inside. The nozzle body (1) is fitted with a shell (15) on the outside. The shell (15) has cavities (3) on both sides inside. Mounting plates (4) are movably installed inside the two cavities (3). Heating plates (5) are installed on the side of the two mounting plates (4) that are close to each other. The output ends of the two heating plates (5) are in contact with the outside of the nozzle body (1). A threaded groove (16) is provided at the center of the bottom end of the outer shell (15). The threaded groove (16) is located directly below the first glue outlet channel (13). The threaded groove (16) is adapted to the outer thread of the top end of the extension nozzle (6). A second glue outlet channel (14) is provided inside the extension nozzle (6). The first glue outlet channel (13) and the second glue outlet channel (14) are internally connected.

2. The dispensing diamond nozzle of claim 1, wherein, The mounting plate (4) is rotatably connected to a threaded rod (2) on the side away from the heating plate (5), and the threaded rod (2) is installed on the outside of the housing (15) by thread rotation.

3. The dispensing diamond nozzle of claim 1, wherein, Spring cavities (7) are provided on both inner sides of the outer shell (15). Springs (10) are installed inside the two spring cavities (7). Limiting blocks (11) are fixedly connected to the two springs (10) at their close ends.

4. The dispensing diamond nozzle of claim 3, wherein, A limiting groove (12) is provided on the outer side of the nozzle body (1), and the limiting groove (12) is used for the installation and insertion of the limiting block (11).

5. The dispensing diamond nozzle of claim 3, wherein, One end of the limiting block (11) is fixedly connected to one end of the connecting rod (9), and the spring (10) is sleeved on the outside of the connecting rod (9).

6. The dispensing diamond nozzle of claim 5, wherein, The end of the connecting rod (9) away from the limiting block (11) is fixedly connected to one side of the pull ring (8), which is located on the outside of the outer shell (15).

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