An additive dispensing device for the production of three-proof adhesives

Abstract

This utility model relates to the field of conformal coating production technology and discloses an additive dispensing device for conformal coating production. The device includes a mixing tank with three supporting legs arranged circumferentially at the bottom. A first motor is mounted on the top of the mixing tank. This additive dispensing device uses a control device to control a second motor to drive a winding device in forward and reverse rotation. The winding device winds or releases a pull rope, which in turn causes a baffle to slide inside the feed cylinder, thereby controlling the amount of additive dispensed. Simultaneously, a flow sensor monitors the additive flow rate in real time and feeds the data back to the control device. The control device controls the second motor according to a preset dispensing amount, achieving precise dispensing, significantly reducing manual operation, improving the performance stability of the conformal coating, and reducing batch-to-batch product performance differences.

Description

Technical Field

[0001] This utility model relates to the field of conformal coating production technology, and in particular to an additive dispensing device for the production of conformal coating. Background Technology

[0002] Conformal adhesives, such as silicone conformal adhesives, are silicone-modified resins primarily used to protect circuit boards and related equipment from harsh environments such as moisture, dust, and chemicals, thereby improving and extending the product's lifespan and ensuring safety and reliability during use. They have a wide range of applications in electronics, electrical appliances, and many other fields.

[0003] Traditional additive dispensing devices for conformal coatings often require manual operation when dispensing powdered additives. This is not only time-consuming and labor-intensive, but also makes it difficult to accurately control the amount dispensed, which can easily affect the performance stability of the conformal coating and lead to significant performance differences between batches. Summary of the Invention

[0004] The technical problem to be solved by this utility model is that the existing technology has the disadvantage of inaccurate additive dosing in the production process of conformal coating. To this end, we propose an additive dosing device for the production of conformal coating.

[0005] To achieve the above objectives, this application adopts the following technical solution: an additive dispensing device for the production of three-proof adhesive, comprising a mixing tank, three support legs arranged in a circular pattern at the bottom of the mixing tank, a first motor mounted on the top of the mixing tank, a stirring shaft fixed to the output end of the first motor, the stirring shaft being located inside the mixing tank, stirring blades fixed to the surface of the stirring shaft, a discharge pipe at the bottom of the mixing tank, a feed cylinder at the top of the mixing tank, a fixing block fixed to the surface of the feed cylinder, a second motor mounted on the top of the mixing tank, a winding device at the output end of the second motor, a pull rope wound around the surface of the winding device, a baffle fixed to the other end of the pull rope, the baffle being slidably connected to the inside of the feed cylinder, a flow sensor mounted on the bottom surface of the feed cylinder, and the flow sensor being electrically connected to a control device external to the mixing tank.

[0006] Preferably, pull rods are fixed on both sides of the baffle, and through holes that cooperate with the pull rods are opened on both sides of the fixing block.

[0007] Preferably, both sides of the fixing block are slidably connected to limit plates, and one side of the limit plate is fixed to the other end of the pull rod.

[0008] Preferably, a reset spring is fixed on both sides of the fixing block, and the other end of the reset spring is fixed to the limiting plate.

[0009] Preferably, the fixing block has a sealing groove inside, and the inner wall of the sealing groove is slidably connected to the baffle.

[0010] Preferably, the feed cylinder is made of a transparent material.

[0011] Preferably, the control device external to the mixing tank is electrically connected to the second motor and the first motor.

[0012] The technical effects and advantages of this utility model are as follows:

[0013] In this invention, a control device controls a second motor to drive a winding device to rotate in both directions. The winding device winds up or releases the pull rope, which in turn causes the baffle to slide inside the feed cylinder, thereby controlling the amount of additive added. At the same time, a flow sensor monitors the flow rate of the additive in real time and feeds the data back to the control device. The control device controls the second motor according to the preset amount to achieve precise addition, significantly reducing manual operation, improving the performance stability of the conformal adhesive, and reducing the performance differences between batches of products. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0015] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0016] Figure 3 This is a schematic diagram of the feed cylinder structure of this utility model;

[0017] Figure 4 This is a schematic diagram of the fixing block structure of this utility model.

[0018] Legend: 1. Mixing tank; 2. Support leg; 3. First motor; 4. Mixing shaft; 5. Mixing blade; 6. Discharge pipe; 7. Feed cylinder; 8. Fixing block; 9. Second motor; 10. Winding device; 11. Pull rope; 12. Baffle; 13. Flow sensor; 14. Pull rod; 15. Through hole; 16. Limiting plate; 17. Return spring; 18. Sealing groove. Detailed Implementation

[0019] The present invention will now be described in further detail with reference to the accompanying drawings and preferred embodiments. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

[0020] Reference Figures 1-4As shown, this utility model provides a technical solution: an additive dispensing device for the production of three-proof adhesive, including a mixing tank 1, three support legs 2 arranged in a circular pattern at the bottom of the mixing tank 1, a first motor 3 installed at the top of the mixing tank 1, a stirring shaft 4 fixed at the output end of the first motor 3, the stirring shaft 4 located inside the mixing tank 1, stirring blades 5 fixed on the surface of the stirring shaft 4, a discharge pipe 6 at the bottom of the mixing tank 1, a feed cylinder 7 at the top of the mixing tank 1, a fixing block 8 fixed on the surface of the feed cylinder 7, a second motor 9 installed at the top of the mixing tank 1, a winding device 10 installed at the output end of the second motor 9, a pull rope 11 wound around the surface of the winding device 10, a baffle 12 fixed at the other end of the pull rope 11, and the baffle 12 being connected to the inside of the feed cylinder 7. The feed cylinder 7 has a sliding connection, and a flow sensor 13 is installed on the bottom surface of the feed cylinder 7. The flow sensor 13 is electrically connected to the control device on the outside of the mixing tank 1. The control device on the outside of the mixing tank 1 is electrically connected to the second motor 9 and the first motor 3. The control device controls the second motor 9 to drive the winding device 10 to rotate in both directions. The winding device 10 winds up or releases the pull rope 11. The pull rope 11 drives the baffle 12 to slide inside the feed cylinder 7, thereby controlling the amount of additive added. At the same time, the flow sensor 13 monitors the flow rate of the additive in real time and feeds the data back to the control device. The control device controls the second motor 9 according to the preset amount to achieve precise addition, greatly reduce manual operation, improve the performance stability of the conformal adhesive, and reduce the performance difference between batches of products.

[0021] Reference Figure 4 As shown in this embodiment: both sides of the baffle 12 are fixed with pull rods 14, and both sides of the fixing block 8 are provided with through holes 15 that cooperate with the pull rods 14. Through the structure of the pull rods 14 and the through holes 15, the baffle 12 is limited, so as to avoid the baffle 12 from deviating or shaking during the sliding process, thereby improving the stability of the baffle 12 during the sliding process.

[0022] Reference Figure 4 As shown in this embodiment: both sides of the fixing block 8 are slidably connected to the limiting plate 16. One side of the limiting plate 16 is fixed to the other end of the pull rod 14. The limiting plate 16 supports the pull rod 14, which improves the stability of the pull rod 14 during use and avoids the pull rod 14 from breaking. At the same time, it can prevent the pull rod 14 from falling off.

[0023] Reference Figure 4As shown in this embodiment: both sides of the fixed block 8 are fixed with return springs 17, and the other end of the return spring 17 is fixed with the limiting plate 16. When the additive is added, the second motor 9 is controlled by the operation control device to drive the winding device 10 to reverse, the pull rope 11 is released, and the rebound force of the return spring 17 pulls the limiting plate 16 to drive the pull rod 14 and the flow sensor 13 to return to the fixed block 8, blocking the additive in the feed cylinder 7 and improving the practicality of the device.

[0024] Reference Figure 4 As shown in this embodiment: a sealing groove 18 is provided inside the fixed block 8, and the inner wall of the sealing groove 18 is slidably connected to the baffle 12. By setting the sealing groove 18, the sealing between the feed cylinder 7 and the fixed block 8 can be further improved, and the additive can be prevented from leaking out, thus avoiding resource waste.

[0025] Reference Figure 3 As shown in this embodiment, the feed cylinder 7 is made of transparent material. Through the transparent material of the feed cylinder 7, the remaining amount of additive can be observed intuitively, which makes it convenient for staff to replenish it in a timely manner and improves the convenience of the device.

[0026] The flow sensor 13 is model LDE200. This flow sensor 13 has high precision and high stability. It can monitor the flow rate of the additive in real time and accurately feed the data back to the control device to ensure the precise dosing of the additive. Its specific working principle is a mature existing technology, which will not be elaborated on here.

[0027] Working principle: During use, the additive is poured into the feed cylinder 7. The control device controls the second motor 9 to drive the winding device 10 to rotate in both directions. The winding device 10 winds or releases the pull rope 11, which in turn drives the baffle 12 to slide inside the feed cylinder 7, thereby controlling the amount of additive dispensed. At the same time, the flow sensor 13 monitors the flow rate of the additive in real time and feeds the data back to the control device. The control device controls the second motor 9 according to the preset dispensing amount to achieve precise dispensing, greatly reducing manual operation, improving the performance stability of the conformal adhesive, and reducing the performance differences between batches of products. The structure of the pull rod 14 and the through hole 15 limits the baffle 12 to prevent it from shifting or shaking during sliding, thus improving the stability of the baffle 12 during sliding. The limiting plate 16 further limits the baffle 12's movement. The pull rod 14 provides support, improving its stability during use and preventing breakage or detachment. When the additive is added, the second motor 9, controlled by the return spring 17, reverses the winding device 10 via the operation control device, releasing the pull rope 11. The rebound force of the return spring 17 pulls the limit plate 16, causing the pull rod 14 and flow sensor 13 to return to the fixed block 8, blocking the additive in the feed cylinder 7 and improving the device's practicality. The sealing groove 18 further enhances the seal between the feed cylinder 7 and the fixed block 8, preventing additive leakage and resource waste. The transparent material of the feed cylinder 7 allows for direct observation of the remaining additive, facilitating timely replenishment and improving the device's convenience.

[0028] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0029] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A device for dispensing additives in the production of three-proof adhesive, comprising a mixing tank (1), characterized in that: The bottom of the mixing tank (1) is provided with three support legs (2), which are arranged in a circular pattern. A first motor (3) is installed on the top of the mixing tank (1), and a stirring shaft (4) is fixed to the output end of the first motor (3). The stirring shaft (4) is located inside the mixing tank (1), and stirring blades (5) are fixed to the surface of the stirring shaft (4). A discharge pipe (6) is provided at the bottom of the mixing tank (1), and a feed cylinder (7) is provided at the top of the mixing tank (1). The surface of the feed cylinder (7) is fixed... A fixed block (8) is provided. A second motor (9) is installed on the top of the mixing tank (1). A winding device (10) is provided at the output end of the second motor (9). A pull rope (11) is wound around the surface of the winding device (10). A baffle (12) is fixed at the other end of the pull rope (11). The baffle (12) is slidably connected to the inside of the feed cylinder (7). A flow sensor (13) is provided on the bottom surface of the feed cylinder (7). The flow sensor (13) is electrically connected to the control device outside the mixing tank (1).

2. The additive feeding device for producing a waterproof adhesive according to claim 1, characterized in that: Both sides of the baffle (12) are fixed with pull rods (14), and both sides of the fixing block (8) are provided with through holes (15) that cooperate with the pull rods (14).

3. The additive feeding device for producing a waterproof adhesive according to claim 1, characterized in that: Both sides of the fixed block (8) are slidably connected to limit plates (16), and one side of the limit plate (16) is fixed to the other end of the pull rod (14).

4. The additive dispensing device for the production of three-proof adhesive according to claim 1, characterized in that: Both sides of the fixing block (8) are fixed with reset springs (17), and the other end of the reset springs (17) is fixed with the limiting plate (16).

5. The additive dispensing device for the production of three-proof adhesive according to claim 1, characterized in that: The fixing block (8) has a sealing groove (18) inside, and the inner wall of the sealing groove (18) is slidably connected to the baffle (12).

6. The additive dispensing device for producing three-proof adhesive according to claim 1, characterized in that: The feed cylinder (7) is made of transparent material.

7. The additive dispensing device for the production of three-proof adhesive according to claim 1, characterized in that: The control device external to the mixing tank (1) is electrically connected to the second motor (9) and the first motor (3).

Images