Dispensing head glue cleaning device

Abstract

The utility model provides a kind of glue dispensing head glue cleaning device, comprising: feed glue barrel, its inside is filled with cleaning agent, this cleaning agent can remove glue that remains in glue dispensing head export part;Air inlet pipe, its export is connected with feed glue barrel and is communicated, its import is connected with gas source, and compressed air is filled into the space above liquid level in feed glue barrel;Output pipe, its import is connected with feed glue barrel and is communicated, and its export is connected with cleaning tank;Cleaning tank is provided with the wiping member of adsorbing cleaning agent, for removing the glue on glue dispensing head. By using compressed air driving cleaning agent supply in feed glue barrel, cleaning agent can be continuously and stably transported to cleaning tank, without pausing glue dispensing operation to carry out manual addition when cleaning agent is used up. The design effectively eliminates the interruption of cleaning agent replenishment process to automated production process, ensures the coordinated operation of glue dispensing process and previous and subsequent processes, and significantly improves overall production efficiency.

Description

Technical Field

[0001] This utility model relates to the field of adhesive removal device technology, specifically an adhesive removal device for an adhesive dispensing head. Background Technology

[0002] Dispensing machines precisely apply adhesive to the surface of workpieces through a dispensing head, achieving functions such as bonding, sealing, and encapsulation. During actual dispensing operations, adhesive often remains at the outlet of the dispensing head, especially after multiple dispensing cycles, where residual adhesive gradually accumulates. This accumulation is not only difficult to clean but also leads to unstable dispensing volume, decreased dispensing accuracy, and in severe cases, even clogging the dispensing head, affecting dispensing quality and the normal operation of the equipment.

[0003] To remove adhesive residue from the dispensing head exit point, existing technologies typically use cleaning agents. These agents effectively dissolve or soften residual adhesive, maintaining the dispensing head's unobstructed flow and consistent dispensing. However, in automated production lines, cleaning agents are consumables and need to be added to the cleaning system periodically or as needed. Each time cleaning agents are added, the dispensing operation often needs to be paused, causing a brief stoppage in the production line. This interruption not only reduces production efficiency but may also affect the coordination between preceding and following processes.

[0004] Therefore, how to ensure the cleaning effect of the dispensing head while reducing the interference of cleaning agent addition on the automated production process has become an urgent problem to be solved in the field of dispensing technology. Utility Model Content

[0005] To address the technical problems in the background art, this utility model discloses a glue-cleaning device for a dispensing head.

[0006] This utility model provides a glue removal device for a dispensing head, comprising: The glue supply bucket is filled with a cleaning agent, which can remove any glue residue at the dispensing head outlet. The air inlet pipe has its outlet connected to the feeding barrel and its inlet connected to the air source to fill the space above the liquid level in the feeding barrel with compressed air. The output pipe has its inlet connected to the feeding bucket and its outlet connected to the cleaning tank. The cleaning tank is equipped with a wiping device that absorbs cleaning agent, used to remove glue from the dispensing head.

[0007] Furthermore, the wiping component is a sponge strip, the lower end of which is located inside the cleaning tank and comes into contact with the cleaning agent inside the cleaning tank; The upper end of the sponge strip protrudes from the cleaning groove.

[0008] Furthermore, a recessed receiving groove is provided at the upper end of the cleaning tank; The sponge strip is placed inside the receiving groove.

[0009] Furthermore, the cleaning tank is also connected to the return glue tank near the top via a return pipe; The cleaning tank is positioned above the return glue tank; The inlet end of the return pipe is higher than the lower end of the sponge strip.

[0010] Furthermore, a liquid level sensor is also installed on the cleaning tank.

[0011] Furthermore, one side of the cleaning tank has an opening, which is then sealed with a transparent panel; The upper liquid level sensor is installed on the transparent plate.

[0012] Furthermore, a low liquid level sensor is installed at the bottom of the feeding hopper.

[0013] Furthermore, a high liquid level sensor is installed at the top of the return glue tank.

[0014] Furthermore, a solenoid valve is installed on the intake pipe.

[0015] Furthermore, a shut-off valve is installed on the output pipe; the shut-off valve opens intermittently.

[0016] The beneficial effects of this utility model are: 1. By using compressed air to drive the supply of cleaning agent within the glue tank, the cleaning agent can be continuously and stably delivered to the cleaning tank, eliminating the need to pause the dispensing operation for manual replenishment when the cleaning agent runs out. This design effectively eliminates the interruption of the automated production process during cleaning agent replenishment, ensuring coordinated operation of the dispensing process with preceding and following processes, and significantly improving overall production efficiency.

[0017] 2. The cleaning agent is continuously supplied to the wiping components in the cleaning tank through the output pipe, which can promptly and thoroughly dissolve and remove residual glue at the dispensing head outlet. This structure avoids problems such as glue accumulation leading to fluctuations in glue output, decreased dispensing accuracy, and dispensing head blockage, thereby ensuring consistent dispensing quality and reliable equipment operation.

[0018] 3. Compressed air is injected into the feed tank via the air inlet pipe, creating stable pressure to drive the cleaning agent output, eliminating the need for complex mechanical pumps or frequent manual intervention. This structure not only reduces the risk of equipment failure but also simplifies daily maintenance and operation, making it more suitable for the long-term stable operation requirements of automated production lines.

[0019] 4. Compared to traditional pump-driven systems, it eliminates the need for pump cleaning, making it more convenient to use. Attached Figure Description

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0021] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the installation structure of the supply glue tank and the return glue tank; Figure 3 This is a schematic diagram of the installation structure of the supply glue tank and the return glue tank from another perspective; Figure 4 This is a schematic diagram of the cleaning tank. Figure 5 This is a top view of the cleaning tank; Figure 6 yes Figure 5 Sectional view of AA; In the diagram: 1. Feeding Glue Bucket; 2. Air Inlet Pipe; 3. Output Pipe; 4. Cleaning Tank; 5. Sponge Strip; 6. Return Pipe; 7. Return Glue Bucket; 8. Upper Liquid Level Sensor; 9. Transparent Plate; 10. Low Liquid Level Sensor; 11. High Liquid Level Sensor; 12. Solenoid Valve; 13. Shut-off Valve; 14. Regulating Valve; 15. Fixing Base; 16. Fixing Plate; 17. Fixing Clamp; 18. Movable Clamp; 19. Clip Plate; 20. Slot; 21. Storage Tank; 41. Receiving Tank. Detailed Implementation

[0022] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0023] like Figure 1-3 As shown, this utility model discloses a glue dispensing head cleaning device, including a feeding glue tank 1 and a return glue tank 7 arranged side by side with the glue outlet facing downward, which are fixedly installed on a fixed base 15. The fixed base 15 is provided with a vertically extending fixed plate 16, and a fixed clamp 17 is provided on one side of the fixed plate 16. A movable clamp 18 is installed on the fixed clamp 17. The feeding glue tank 1 and the return glue tank 7 are sandwiched between the fixed clamp 17 and the movable clamp 18 to achieve installation and fixation.

[0024] The fixing plate 16 also extends vertically to form a snap-fit ​​plate 19, which is provided with a U-shaped snap-fit ​​groove 20. The lower diameter change points of the supply glue tank 1 and the return glue tank 7 are snapped into the snap-fit ​​groove 20, which makes the positional stability of the lower outlet of the supply glue tank 1 and the return glue tank 7 higher, so as to achieve stable conveying. Moreover, the diameter of the diameter change point increases upward, and the snap-fit ​​groove 20 is located in the transition area at the lower end of the diameter change point, which can also support the supply glue tank 1 and the return glue tank 7.

[0025] If the supply glue tank 1 and the return glue tank 7 leak, the cleaning agent will flow everywhere, making it difficult to clean. Therefore, the fixed base 15 is provided with a downwardly recessed storage tank 21. The leaked cleaning agent flows into the storage tank 21, which not only makes cleaning easier but also prevents the cleaning agent from flowing everywhere.

[0026] The glue supply tank 1 is filled with cleaning agent, which removes any residual glue at the dispensing head outlet. A low-level sensor 10 is installed at the bottom of the glue supply tank 1. When the glue level in the glue supply tank 1 reaches the detection position of the low-level sensor 10, cleaning agent is added to the glue supply tank 1.

[0027] An air inlet pipe 2 is connected to the top of the feeding container 1. The inlet end of the air inlet pipe 2 is connected to an air source. Compressed air enters the area above the liquid level in the feeding container 1 through the air inlet pipe 2, and under the action of air pressure, drives the cleaning agent to be output from the lower end of the feeding container 1. A solenoid valve 12 and a regulating valve 14 are installed on the air inlet pipe 2. The solenoid valve 12 controls the opening and closing of the air inlet pipe 2, allowing the air source to intermittently inflate the feeding container 1 while remaining normally open, preventing damage caused by repeated start-stop cycles of the air source. The regulating valve 14 regulates the flow rate of the compressed air, ensuring a stable flow rate and a stable driving force for the cleaning agent.

[0028] The lower end of the feeding bucket 1 is connected to the lower end of the cleaning tank 4 via the output pipe 3. The cleaning agent enters the cleaning tank 4 under the action of compressed air. A vertically extending sponge strip 5 is provided at the upper part of the cleaning tank 4. The lower end of the sponge strip 5 is located inside the cleaning tank 4 and in contact with the cleaning agent; the upper end of the sponge strip 5 protrudes from the cleaning tank 4. This arrangement ensures that the sponge strip 5 is saturated with the cleaning agent, resulting in better cleaning when the dispensing head contacts it. The sponge strip 5 is also prone to deformation; when in contact with the dispensing head, its deformation increases the contact area with the dispensing head, and friction occurs, thus achieving a wiping effect.

[0029] Since the sponge strip 5 is in a saturated state of adsorption, when it is squeezed and deformed by the dispensing head, the cleaning agent in the sponge strip 5 will be squeezed out and flow to the outside, causing pollution. Therefore, the upper end of the cleaning tank 4 is also provided with a downwardly recessed receiving tank 41. The squeezed-out cleaning agent will flow into the receiving tank 41. When the dispensing head is separated from the sponge strip 5, the cleaning agent will continue to be adsorbed by the sponge strip 5.

[0030] When there is too much cleaning agent in the cleaning tank 4, it is easy to overflow from the sponge strip 5. Therefore, the cleaning tank 4 is also connected to the upper end of the return glue tank 7 via a return pipe 6 near the top; and the cleaning tank 4 is set at a position higher than the return glue tank 7; Figure 6 As shown, the inlet end of the return pipe 6 is higher than the lower end of the sponge strip 5. With this configuration, excess cleaning agent will flow into the return glue tank 7 under gravity.

[0031] A high liquid level sensor 11 is installed at the upper part of the return glue tank 7. When the liquid level in the return glue tank 7 reaches the detection position of the high liquid level sensor 11, the empty return glue tank 7 can be replaced. Alternatively, the cleaning agent in the return glue tank 7 can be introduced into the supply glue tank 1.

[0032] When output tube 3 becomes blocked, it is difficult to detect in time, therefore... Figure 4 and Figure 5 As shown, a liquid level sensor 8 is also installed on the cleaning tank 4. When the liquid level in the cleaning tank 4 is lower than the detection position of the liquid level sensor 8, the liquid level sensor 8 will control the alarm to sound. Furthermore, to avoid false alarms that could lead to ineffective work by workers to clear the output pipe 3, one side of the cleaning tank 4 is open and sealed with a transparent plate 9; the liquid level sensor 8 is installed at the transparent plate 9. Workers can first observe the liquid level in the cleaning tank 4 through the transparent plate 9. If the liquid level in the cleaning tank 4 is lower than the sponge strip 5, it can be determined that the output pipe 3 is blocked.

[0033] A shut-off valve 13 is installed on the output pipe 3. The shut-off valve 13 opens intermittently to control the flow rate of the cleaning agent and prevent excessive backflow of the cleaning agent.

[0034] When there is more than one dispensing head in the production line, the output pipe 3 can also split into multiple branch pipes to provide cleaning agent to multiple cleaning tanks 4.

[0035] Compared to existing technologies, the advantages of this embodiment are: 1. By using compressed air to drive the supply of cleaning agent in the glue supply tank 1, the cleaning agent can be continuously and stably delivered to the cleaning tank 4, eliminating the need to pause the dispensing operation for manual replenishment when the cleaning agent is depleted. This design effectively eliminates the interruption of the automated production process during cleaning agent replenishment, ensuring the coordinated operation of the dispensing process with the preceding and following processes, and significantly improving overall production efficiency. 2. The cleaning agent is continuously supplied to the wiping components in the cleaning tank 4 through the output pipe 3, which can promptly and fully dissolve and remove residual glue at the dispensing head outlet. This structure avoids problems such as glue accumulation leading to fluctuations in glue output, decreased dispensing accuracy, and dispensing head blockage, thereby ensuring the consistency of dispensing quality and the reliability of equipment operation. 3. Compressed air is injected into the glue supply tank 1 through the air inlet pipe 2, forming a stable pressure to drive the output of cleaning agent, eliminating the need for complex mechanical pumps or frequent manual intervention. This structure not only reduces the risk of equipment failure but also lowers the difficulty of daily maintenance and operation, making it more suitable for the long-term stable operation requirements of automated production lines. 4. Compared to traditional pump-driven systems, it eliminates the need for pump cleaning, making it more convenient to use.

[0036] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A glue-cleaning device for a dispensing head, characterized in that, include: The glue supply bucket (1) is filled with a cleaning agent, which can remove the glue residue at the outlet of the dispensing head; The air inlet pipe (2) has its outlet connected to and communicates with the feeding glue tank (1), and its inlet is connected to an air source to fill the space above the liquid level in the feeding glue tank (1) with compressed air. The output pipe (3) has its inlet connected to and communicates with the feeding bucket (1), and its outlet connected to the cleaning tank (4). The cleaning tank (4) is equipped with a wiping device that absorbs cleaning agent, used to remove glue from the dispensing head.

2. The dispensing head cleaning device according to claim 1, characterized in that: The wiping component is a sponge strip (5), the lower end of which is located in the cleaning tank (4) and in contact with the cleaning agent in the cleaning tank (4); The upper end of the sponge strip (5) protrudes from the cleaning groove (4).

3. The dispensing head cleaning device according to claim 2, characterized in that: The upper end of the cleaning tank (4) is provided with a recessed receiving groove (41). The sponge strip (5) is placed in the receiving groove (41).

4. The dispensing head cleaning device according to claim 1, characterized in that: The cleaning tank (4) is also connected to the return glue tank (7) near the top via a return pipe (6); The cleaning tank (4) is positioned above the return glue tank (7); The inlet end of the return pipe (6) is higher than the lower end of the sponge strip (5).

5. The dispensing head cleaning device according to claim 4, characterized in that: The cleaning tank (4) is also equipped with an upper liquid level sensor (8).

6. The dispensing head cleaning device according to claim 5, characterized in that: The cleaning tank (4) has an opening on one side, which is sealed by a transparent plate (9); The upper liquid level sensor (8) is installed on the transparent plate (9).

7. The dispensing head cleaning device according to claim 1, characterized in that: A low liquid level sensor (10) is installed at the lower part of the feeding hopper (1).

8. The dispensing head cleaning device according to claim 4, characterized in that: A high liquid level sensor (11) is installed at the upper part of the reflux glue tank (7).

9. The dispensing head cleaning device according to claim 1, characterized in that: A solenoid valve (12) is installed on the air intake pipe (2).

10. The dispensing head cleaning device according to claim 1, characterized in that: A shut-off valve (13) is installed on the output pipe (3); the shut-off valve (13) opens intermittently.

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