Weighing device for electronic packaging adhesive production
By introducing a scraper and a conical baffle into the weighing device, the problems of liquid outlet blockage and adhesive impact were solved, enabling smooth discharge and accurate weighing of the adhesive and reducing maintenance costs.
Patent Information
- Application Number
- CN202520682463.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-11
- Publication Date
- 2026-02-17
- Estimated Expiration
- 2035-04-11
AI Technical Summary
When weighing adhesives, existing weighing devices are prone to clogging of the outlet pipe, and the adhesive impacts the weighing mechanism when falling, resulting in inaccurate measurement results.
Design a weighing device that includes a storage tank, support beam, buffer, and unblocking components. By installing a scraper and a conical guide shroud inside the liquid outlet pipe, the impact force of the adhesive is decomposed, adhesion and impact are reduced, and smooth discharge and accurate weighing are ensured.
It effectively prevents blockage of the liquid outlet pipe, reduces the impact of adhesive on the weighing components, improves weighing accuracy and efficiency, and reduces maintenance costs.
Smart Images

Figure CN223925815U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of adhesive production technology, and in particular relates to a weighing device for the production of electronic packaging adhesives. Background Technology
[0002] In the field of electronic packaging, adhesives play a crucial role. They are used to bond, seal, and protect electronic components such as chips and circuit boards, ensuring the stability and reliability of electronic devices. As electronic technology continues to advance, electronic devices are developing towards being thinner, lighter, higher-performance, and more multifunctional. This requires adhesives to have better electrical properties, thermal stability, and weather resistance to adapt to complex working environments.
[0003] In existing weighing processes, adhesives are typically discharged directly from the storage container through a discharge pipe into the container for weighing. However, due to the high viscosity of the adhesive, it easily adheres to the inner wall of the discharge pipe during the discharge process and gradually hardens over time, severely hindering the flow of adhesive. Furthermore, cleaning the clogged discharge pipe requires a significant amount of manpower and time, increasing maintenance costs. In addition, the adhesive discharged from the discharge pipe generates a large impact force when falling into the container, interfering with the normal operation of the weighing components and causing the measured result to be greater than the actual weight, resulting in weighing errors. Utility Model Content
[0004] The purpose of this invention is to provide a weighing device for the production of electronic packaging adhesives, which solves the problems of existing weighing devices where the liquid outlet pipe on the storage container is easily blocked during weighing, and the adhesive impacts the weighing mechanism when falling, resulting in the measurement result being greater than the actual weight of the adhesive.
[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:
[0006] This utility model is a weighing device for the production of electronic packaging adhesives, including a storage tank and several support beams. The bottom of the storage tank is fixedly connected to an outlet pipe. A buffer is slidably installed between the several support beams. A draining device located inside the outlet pipe is rotatably installed on the top of the buffer.
[0007] The unblocking component includes a cone-shaped body, on which several scraper blades are fixedly connected in a circumferential array on the circumferential side, and a rotating shaft is fixedly connected to the bottom of the cone-shaped body.
[0008] The present invention is further configured such that all of the aforementioned scrapers are inclined in the same direction.
[0009] The present invention is further configured such that the buffer component includes a conical guide shield, and a plurality of support rods are fixedly connected in a circumferential array on the inner circumferential side of the conical guide shield. One end of the plurality of support rods is fixedly connected to a bushing, and the bushing is rotatably engaged with the rotating shaft.
[0010] The present invention is further configured such that a plurality of connecting plates are fixedly connected to the periphery of the conical guide shield, and a pressure plate is fixedly connected to one end of the connecting plate.
[0011] The present invention is further configured such that symmetrical two side plates are fixedly connected to one side of the support beam, a sliding rod is fixedly connected between the two side plates, the pressure plate is slidably sleeved on the sliding rod, and a spring located below the pressure plate is sleeved on the periphery of the sliding rod.
[0012] The present invention is further configured such that a solenoid valve is installed on the liquid outlet pipe above the unblocking component, a weighing assembly is fixedly installed between several support beams, and a container is provided on the weighing assembly.
[0013] This utility model has the following beneficial effects:
[0014] 1. This utility model provides a draining device inside the outlet pipe, which causes the discharged adhesive to impact the scraper of the draining device. The impact force is decomposed into a force that pushes a cone to rotate around its axis. As the cone rotates, the scraper continuously scrapes the inner wall of the outlet pipe, scraping off the attached adhesive and allowing it to be discharged with the main adhesive flow. This prevents the adhesive from adhering to and solidifying, thus blocking the outlet pipe and ensuring smooth adhesive discharge.
[0015] 2. This utility model, by setting a conical guide shroud below the liquid outlet pipe, changes the direction of movement of the falling adhesive upon contact with it, causing it to disperse along the inner circumferential side of the conical guide shroud. This reduces the impact force when the adhesive falls in a concentrated manner, thereby reducing the impact force of the adhesive on the container and preventing the weight measured by the weighing component from being greater than the actual weight of the adhesive in the container, thus ensuring the accuracy of weighing.
[0016] 3. The buffer component of this utility model will move downward during the process of absorbing the impact force of the falling adhesive. At the same time, it will also drive the connected drain cleaner to move downward synchronously. In conjunction with the contraction and rebound characteristics of the spring, the drain cleaner can scrape the inner wall of the liquid outlet pipe at different heights, expand the draining range, and significantly improve the draining effect.
[0017] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description
[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0019] Figure 1 A schematic diagram of a weighing device used in the production of electronic packaging adhesives;
[0020] Figure 2 This is a structural diagram of the buffer component and the unblocking component;
[0021] Figure 3 for Figure 1 Enlarged diagram of point A in the middle.
[0022] The attached diagram lists the components represented by each number as follows:
[0023] 1. Storage tank; 2. Support beam; 3. Discharge pipe; 4. Buffer; 5. Unblocking component; 6. Conical body; 7. Scraper; 8. Rotating shaft; 9. Conical flow guide; 10. Support rod; 11. Bushing; 12. Connecting plate; 13. Pressure plate; 14. Side plate; 15. Slide rod; 16. Spring; 17. Solenoid valve; 18. Weighing assembly; 19. Loading drum. Detailed Implementation
[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model. Specific Implementation
[0026] Please see Figure 1-3 This utility model is a weighing device for the production of electronic packaging adhesives, including a storage tank 1 and several support beams 2. The bottom of the storage tank 1 is fixedly connected to an outlet pipe 3. A buffer 4 is slidably installed between the several support beams 2. A draining device 5 located inside the outlet pipe 3 is rotatably installed on the top of the buffer 4. By placing the buffer 4 below the outlet pipe 3, the adhesive discharged from the outlet pipe 3 needs to pass through the buffer 4 when falling, so as to slow down the falling speed of the adhesive. The draining device 5 located inside the outlet pipe 3, using the buffer 4 as a support structure, can effectively reduce the adhesion of adhesive to the inner wall of the outlet pipe 3.
[0027] Specifically, the unblocking component 5 includes a conical body 6. Several scraper blades 7 are fixedly connected in a circumferential array on the circumferential side of the conical body 6. A rotating shaft 8 is fixedly connected to the bottom of the conical body 6. All scraper blades 7 are inclined in the same direction. When adhesive is discharged from the outlet pipe 3, the adhesive falls onto the upward-facing side of the scraper blades 7. Because the scraper blades 7 are all inclined in the same direction, the impact force of the falling adhesive is decomposed into a component force along the surface of the scraper blades 7. This component force drives the conical body 6 to rotate around the rotating shaft 8. During the process, the scraper 7 continuously scrapes the inner wall of the outlet pipe 3, scraping off the adhesive adhering to the inner wall of the outlet pipe 3 and allowing it to be discharged downwards along with the mainstream adhesive. Moreover, as the adhesive continues to be discharged, the impact force on the scraper 7 remains, and the unblocking component 5 continues to rotate, ensuring comprehensive and continuous scraping of the inner wall of the outlet pipe 3. This effectively reduces the adhesion of adhesive to the inner wall of the outlet pipe 3, prevents the adhesive adhering to the inner wall of the outlet pipe 3 from curing and clogging the outlet pipe 3, and ensures that the adhesive can be discharged smoothly.
[0028] The buffer 4 includes a conical guide shroud 9. Several support rods 10 are fixedly connected in a circular array on the inner circumferential side of the conical guide shroud 9. One end of the several support rods 10 is fixedly connected to a bushing 11. The bushing 11 is rotatably engaged with the rotating shaft 8, so that the unblocking component 5 can rotate relative to the buffer 4. The conical guide shroud 9 can change the direction of movement of the falling adhesive when it comes into contact with it. The adhesive no longer falls straight down, but is dispersed along the inner circumferential side of the conical guide shroud 9, which reduces the impact force when the adhesive falls in a concentrated manner.
[0029] Several connecting plates 12 are fixedly connected to the sides of the conical guide shroud 9. A pressure plate 13 is fixedly connected to one end of the connecting plate 12. Symmetrical side plates 14 are fixedly connected to one side of the support beam 2. A sliding rod 15 is fixedly connected between the side plates 14. The pressure plate 13 is slidably sleeved on the sliding rod 15. A spring 16 located below the pressure plate 13 is sleeved on the sides of the sliding rod 15. When the adhesive impacts the conical guide shroud 9, the impact force will be transmitted to the connecting plate 12 and the pressure plate 13 in sequence. After the pressure plate 13 is subjected to force, it will slide down along the sliding rod 15 and compress the spring 16. The spring 16 has elastic potential energy. During the compression process, it will absorb part of the kinetic energy generated by the falling adhesive, which will further reduce the falling speed of the adhesive. At the same time as the conical guide shroud 9 is impacted and moves down, it will also drive the unblocking component 5 to move down synchronously. This allows the unblocking component 5 to scrape the inner wall of the liquid outlet pipe 3 at different heights, improving the unblocking effect of the unblocking component 5.
[0030] Furthermore, a solenoid valve 17 is installed on the outlet pipe 3 above the unblocking component 5. The solenoid valve 17 regulates the timing and flow rate of adhesive discharge by controlling its own opening and closing states. A weighing assembly 18 is fixedly installed between several support beams 2. The weighing assembly 18 consists of a weighing sensor and a signal processing circuit. The sensor has an elastic element inside. When gravity acts, the elastic element deforms, and the strain gauge attached to the elastic element deforms accordingly, which in turn causes a change in the resistance value of the strain gauge. The change in resistance value is proportional to the magnitude of the gravity. By measuring the change in resistance, the gravity of the measured substance can be obtained, realizing the conversion of force and electrical signal. A container 19 is provided on the weighing assembly 18. The container 19 is located below the buffer component 4 and is used to hold the adhesive discharged from the outlet pipe 3. The weight of the adhesive in the container 19 is measured by the weighing assembly 18 below. When the weight of the adhesive in the container 19 reaches the target, the solenoid valve 17 is closed.
[0031] The operation process of this embodiment is as follows: According to production needs, the solenoid valve 17 is opened, and the adhesive in the storage tank 1 is discharged through the outlet pipe 3. The falling adhesive impacts the scraper 7 of the unblocking component 5. Since the scraper 7 is tilted in the same direction, the impact force drives the cone 6 to rotate around the rotating shaft 8. The scraper 7 continuously scrapes the inner wall of the outlet pipe 3 to prevent the adhesive from adhering and clogging. At the same time, the adhesive impacts the cone-shaped guide shroud 9 of the buffer component 4, changing its movement direction and dispersing it. The impact force is transmitted to the pressure plate 13 through the connecting plate 12. The pressure plate 13 slides down the slide rod 15 to compress the spring 16. The spring 16 absorbs kinetic energy and slows down the falling speed of the adhesive. After the adhesive falls into the container 19, the weighing component 18 measures the weight of the adhesive in the container 19 in real time and feeds the data back to the control system. When the weight displayed by the weighing component 18 reaches the preset value, the control system issues a command to close the solenoid valve 17 and stop the adhesive discharge. At this time, one weighing operation of the adhesive is completed.
[0032] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
[0033] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.
Claims
1. A weighing device for the production of electronic packaging adhesives, comprising a storage tank (1) and several support beams (2), characterized in that: The storage tank (1) is fixedly connected to the bottom of the outlet pipe (3), and a buffer (4) is slidably installed between several of the support beams (2). A draining device (5) located inside the outlet pipe (3) is rotatably installed on the top of the buffer (4). The unblocking component (5) includes a cone-shaped body (6), and several scraper blades (7) are fixedly connected in a circular array on the circumferential side of the cone-shaped body (6). A rotating shaft (8) is fixedly connected to the bottom of the cone-shaped body (6).
2. The weighing device for electronic packaging adhesive production according to claim 1, characterized in that, All of the aforementioned scrapers (7) are inclined in the same direction.
3. The weighing device for electronic packaging adhesive production according to claim 2, characterized in that, The buffer (4) includes a conical guide shield (9), and a number of support rods (10) are fixedly connected in a circular array on the inner circumferential side of the conical guide shield (9). A bushing (11) is fixedly connected to one end of the support rods (10), and the bushing (11) is rotatably engaged with the rotating shaft (8).
4. A weighing device for electronic packaging adhesive production according to claim 3, characterized in that, The conical shroud (9) has several connecting plates (12) fixedly connected to its periphery, and a pressure plate (13) is fixedly connected to one end of each connecting plate (12).
5. A weighing device for electronic packaging adhesive production according to claim 4, characterized in that, The support beam (2) is fixedly connected to two symmetrical side plates (14) on one side, and a slide rod (15) is fixedly connected between the two side plates (14). The pressure plate (13) is slidably sleeved on the slide rod (15), and a spring (16) located below the pressure plate (13) is sleeved on the periphery of the slide rod (15).
6. A weighing device for producing electronic packaging adhesives according to claim 5, characterized in that, The outlet pipe (3) is equipped with a solenoid valve (17) located above the unblocking component (5), and a weighing assembly (18) is fixedly installed between several support beams (2), and a container (19) is provided on the weighing assembly (18).