Dispensing device for plug-in nixie tube production

Abstract

The utility model relates to the technical field of dispensing, in particular to a dispensing device for producing plug-in nixie tubes. According to the technical scheme, the glue dispensing device comprises a barrel, a diaphragm and a piston, a glue outlet is formed in the bottom end of the barrel, a glue dispensing head is arranged at the bottom end of the glue outlet, a glue inlet is formed in the upper section of the barrel, a glue inlet pipe is arranged on the glue inlet, a sealing plate is arranged at the top end of the barrel, and the piston is arranged on the inner wall of the barrel in a sliding mode. A piston rod is arranged on the upper surface of the piston, the piston is located between the sealing plate and the glue inlet, the membrane moving assembly is arranged above the sealing plate, and a power part of the membrane moving assembly is in contact with the top end of the piston rod. According to the utility model, the glue dispensing amount is controlled through the pneumatic diaphragm, so that the accuracy of the glue dispensing amount each time is ensured, the glue waste is reduced by accurately controlling the glue dispensing amount, and the fixing effect and the appearance of the nixie tube are improved.

Description

Technical Field

[0001] This utility model relates to the field of dispensing technology, and in particular to a dispensing device for the production of plug-in digital tubes. Background Technology

[0002] With the rapid development of the electronics industry, digital tubes, as display devices, are increasingly widely used in various electronic products. As a common type of digital tube, the installation and fixing process of through-hole digital tubes has a significant impact on the product's performance and appearance. In the production process of through-hole digital tubes, the dispensing process has become one of the key steps.

[0003] Due to the small size of the plug-in digital tube, the current dispensing method makes it difficult to accurately control the amount of glue, which can easily lead to insufficient or excessive glue application, affecting the fixing effect and appearance of the digital tube.

[0004] Therefore, we propose a dispensing device for the production of plug-in digital tubes to solve the existing problems. Utility Model Content

[0005] The purpose of this invention is to address the problems existing in the background technology by proposing a dispensing device for the production of plug-in digital tubes.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a dispensing device for producing plug-in digital tubes, comprising a cylinder, a diaphragm, and a piston. The bottom end of the cylinder has a dispensing port, and the bottom end of the dispensing port has a dispensing head. The upper section of the cylinder has a dispensing inlet, and the dispensing inlet has a dispensing tube. The top end of the cylinder has a sealing plate. A piston is slidably mounted on the inner wall of the cylinder, and a stopper rod is mounted on the upper surface of the piston. The piston is positioned between the sealing plate and the dispensing inlet. A membrane actuation assembly is located above the sealing plate, and the power unit of the membrane actuation assembly contacts the top end of the stopper rod.

[0007] Preferably, the membrane actuator consists of a support plate, a top cover, a diaphragm, a bottom cover, and a pressure head. The bottom end of the support plate is located on the upper surface of the sealing plate, the bottom cover is located on the top end of the support plate, and the top cover is bolted to the bottom cover.

[0008] Preferably, the diaphragm is positioned between the top cover and the bottom cover and is sealed and positioned by the compression of both, and the pressure head is located on the bottom convex part of the diaphragm, and the pressure head contacts the top end of the stopper rod.

[0009] Preferably, an air outlet is provided on one side of the upper surface of the top cover, and a one-way valve is provided at the top opening of the air outlet. An air inlet is provided on the other side of the upper surface of the top cover, and an air inlet pipe is embedded in the air inlet.

[0010] Preferably, the sealing plate has a through hole adapted to the plug rod, and the plug rod is slidably inserted into the through hole.

[0011] Preferably, the inlet pipe is connected to an external pumping structure, and a pressure sensor is provided on the lower surface of the sealing plate, the pressure sensor being electrically connected to the pumping structure.

[0012] Preferably, both the glue inlet and the glue outlet are equipped with valve structures.

[0013] Preferably, there are two support plates, and the positions of the two support plates are symmetrically distributed relative to the bottom cover.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] In use, the dispensing device for producing plug-in digital tubes can be set at a designated position in the processing of plug-in digital tubes. Through the external pumping structure connected by the glue inlet pipe, glue enters the cylinder under the pressure of the pump until the glue inside the cylinder presses against the piston and squeezes the pressure sensor. The pressure sensor is connected to an external computer to display the value. When the specified value is reached, the glue pumping operation stops.

[0016] Then, the inlet is closed and the outlet is opened by the valve structure. Then, the air source is connected through the air inlet pipe. The airflow enters between the top cover and the diaphragm. The airflow squeezes the diaphragm to bulge downwards. The bulging action of the diaphragm squeezes the piston rod through the pressure head, causing the piston to move down and squeeze the glue inside the cylinder. The glue is then dispensed to the plug digital tube through the dispensing head. The amount of glue dispensed can be controlled by controlling the airflow pressure entering the top cover each time through the external air pressure controller.

[0017] After one dispensing is completed, open the glue inlet and close the glue outlet. Then add glue into the cylinder until the piston moves upward and touches the pressure sensor to display the specified value. This completes the glue filling and piston reset. During the piston reset process, the plunger pushes against the diaphragm to reset. Then the gas between the top cover and the diaphragm is discharged through the one-way valve. Due to the design of the one-way valve, the airflow can only flow out from the top cover and cannot enter between the diaphragms through the top cover.

[0018] This invention uses a pneumatic diaphragm to control the amount of adhesive dispensed, ensuring the accuracy of each dispensing. By precisely controlling the amount of adhesive dispensed, adhesive waste is reduced, and the fixing effect and appearance of the digital tube are improved. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0020] Figure 2 This is a schematic diagram of the main structure of this utility model;

[0021] Figure 3 This is a cross-sectional structural diagram of the cylindrical body of this utility model;

[0022] Figure 4 This is a schematic diagram of the membrane motion component structure of this utility model.

[0023] Figure label:

[0024] 1. Cylinder; 2. Dispensing head; 3. Sealing plate; 4. Glue inlet; 5. Glue inlet tube; 6. Support plate; 7. Top cover; 8. One-way valve; 9. Air inlet tube; 10. Plug rod; 11. Diaphragm; 12. Glue outlet; 13. Piston; 14. Pressure sensor; 15. Pressure head; 16. Bottom cover. Detailed Implementation

[0025] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Example 1

[0027] like Figures 1-4 As shown, the present invention proposes a dispensing device for producing plug-in digital tubes, comprising a cylinder 1, a diaphragm 11, and a piston 13. The bottom end of the cylinder 1 is provided with a dispensing port 12, and the bottom end of the dispensing port 12 is provided with a dispensing head 2. The upper section of the cylinder 1 is provided with a dispensing port 4, and a dispensing tube 5 is provided on the dispensing port 4. The top end of the cylinder 1 is provided with a sealing plate 3. The piston 13 is slidably mounted on the inner wall of the cylinder 1. A stopper rod 10 is provided on the upper surface of the piston 13. The piston 13 is located between the sealing plate 3 and the dispensing port 4. A membrane actuation assembly is located above the sealing plate 3, and the power part of the membrane actuation assembly contacts the top end of the stopper rod 10.

[0028] Based on Example 1:

[0029] In use, the dispensing device for producing plug-in digital tubes can be set at a designated position in the processing of plug-in digital tubes. Through the external pumping structure connected by the glue inlet pipe 5, glue enters the inside of the cylinder 1 under the pressure of the pump until the glue inside the cylinder 1 presses against the piston 13 and squeezes the pressure sensor 14. The pressure sensor 14 is connected to an external computer to display the value. When the specified value is reached, the glue pumping operation is stopped.

[0030] Then, the glue inlet 4 is closed by the valve structure and the glue outlet 12 is opened. Then, the external air source is connected through the air inlet pipe 9. The airflow enters between the top cover 7 and the diaphragm 11. The membrane actuation component works, causing the piston 13 to move down and squeeze the glue inside the cylinder 1. The glue is then dispensed to the plug-in digital tube through the dispensing head 2. The amount of glue dispensed can be controlled by controlling the airflow pressure entering the top cover 7 once by the external air pressure controller.

[0031] After one dispensing is completed, the glue inlet 4 is opened and the glue outlet 12 is closed. Then, glue is added into the cylinder 1 until the piston 13 moves upward and touches the pressure sensor 14 to display the specified value. This completes the glue filling and piston 13 reset. During the piston 13 reset process, the stopper rod 10 touches the diaphragm 11 to reset, and the gas between the top cover 7 and the diaphragm 11 is discharged through the one-way valve 8.

[0032] Example 2

[0033] like Figures 1-4 As shown, the present invention proposes a dispensing device for producing plug-in digital tubes. Compared with Embodiment 1, this embodiment further includes: a membrane actuator consisting of a support plate 6, a top cover 7, a diaphragm 11, a bottom cover 16, and a pressure head 15. The bottom end of the support plate 6 is located on the upper surface of the sealing plate 3, and the bottom cover 16 is located on the top end of the support plate 6. The top cover 7 is bolted to the bottom cover 16. An air inlet is provided on the other side of the upper surface of the top cover 7. An air inlet pipe 9 is embedded in the air inlet and connected to an external air source through the air inlet pipe 9. The airflow enters between the top cover 7 and the diaphragm 11. The diaphragm 11 is located between the top cover 7 and the bottom cover 16 and is squeezed and sealed by both. The pressure head 15 is located at the rounded convex part of the bottom surface of the diaphragm 11. The pressure head 15 contacts the top end of the stopper rod 10. The airflow squeezes the diaphragm 11 to convex downwards and deforms it. The convex movement of the diaphragm 11 squeezes the stopper rod 10 through the pressure head 15.

[0034] An air outlet is provided on one side of the upper surface of the top cover 7. A one-way valve 8 is provided at the top opening of the air outlet. The gas between the top cover 7 and the diaphragm 11 is discharged through the one-way valve 8. Due to the design of the one-way valve 8, the airflow can only flow out from the top cover 7 and cannot enter the space between the diaphragms 11 through the top cover 7.

[0035] The sealing plate 3 has a through hole that matches the stopper rod 10. The stopper rod 10 is slidably inserted into the through hole. The glue inlet tube 5 is connected to an external pumping structure. The lower surface of the sealing plate 3 is provided with a pressure sensor 14. The pressure sensor 14 is electrically connected to the pumping structure. The glue inside the cylinder 1 presses against the piston 13 and squeezes the pressure sensor 14. The pressure sensor 14 is connected to an external computer to display the value. When the specified value is reached, the glue pumping operation stops.

[0036] Both the glue inlet 4 and the glue outlet 12 are equipped with valve structures to control the on / off state of the glue inlet 4 and the glue outlet 12.

[0037] There are two support plates 6, and the positions of the two support plates 6 are symmetrically distributed with respect to the bottom cover 16.

[0038] It should be noted that the pressure sensor 14 and the valve structure are existing mature technologies, and their working principles and internal structures are known to those skilled in the art. This utility model only utilizes their functions and does not improve their internal structures. Therefore, it will not be described in detail here. Those skilled in the art can make any selections according to their needs or convenience.

[0039] The above specific embodiments are merely several preferred embodiments of this utility model. Based on the technical solution of this utility model and the relevant teachings of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

[0040] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A dispensing device for producing plug-in digital tubes, comprising a cylinder (1), a diaphragm (11), and a piston (13), characterized in that: The bottom end of the cylinder (1) is provided with a glue outlet (12), and the bottom end of the glue outlet (12) is provided with a glue dispensing head (2). The upper section of the cylinder (1) is provided with a glue inlet (4), and the glue inlet (4) is provided with a glue inlet tube (5). The top end of the cylinder (1) is provided with a sealing plate (3). The inner wall of the cylinder (1) is provided with a piston (13), and the upper surface of the piston (13) is provided with a stopper rod (10). The piston (13) is located between the sealing plate (3) and the glue inlet (4). The membrane actuation assembly is located above the sealing plate (3), and the power part of the membrane actuation assembly contacts the top end of the stopper rod (10).

2. The dispensing device for producing plug-in digital tubes according to claim 1, characterized in that: The membrane actuator consists of a support plate (6), a top cover (7), a diaphragm (11), a bottom cover (16), and a pressure head (15). The bottom end of the support plate (6) is located on the upper surface of the sealing plate (3), the bottom cover (16) is located on the top end of the support plate (6), and the top cover (7) is bolted to the bottom cover (16).

3. The dispensing device for producing plug-in digital tubes according to claim 2, characterized in that: The diaphragm (11) is located between the top cover (7) and the bottom cover (16) and is sealed and positioned by the compression of both. The pressure head (15) is located on the bottom convex part of the diaphragm (11) and contacts the top of the stopper rod (10).

4. The dispensing device for producing plug-in digital tubes according to claim 2, characterized in that: An air outlet is provided on one side of the upper surface of the top cover (7), and a one-way valve (8) is provided at the top of the air outlet. An air inlet is provided on the other side of the upper surface of the top cover (7), and an air inlet pipe (9) is embedded in the air inlet.

5. The dispensing device for producing plug-in digital tubes according to claim 1, characterized in that: The sealing plate (3) has a through hole that is compatible with the plug rod (10), and the plug rod (10) is slidably inserted into the through hole.

6. The dispensing device for producing plug-in digital tubes according to claim 1, characterized in that: The glue inlet pipe (5) is connected to an external pumping structure, and a pressure sensor (14) is provided on the lower surface of the sealing plate (3). The pressure sensor (14) is electrically connected to the pumping structure.

7. The dispensing device for producing plug-in digital tubes according to claim 1, characterized in that: Both the glue inlet (4) and the glue outlet (12) are equipped with valve structures.

8. The dispensing device for producing plug-in digital tubes according to claim 2, characterized in that: There are two support plates (6), and the positions of the two support plates (6) are symmetrically distributed relative to the bottom cover (16).

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