Quantitative sealant filling mechanism

Abstract

The utility model discloses a quantitative sealant filling mechanism, which belongs to the technical field of filling mechanisms and comprises a sleeve head, a sealant filling pipe is sleeved outside the sleeve head, an inner fastener at the end consists of a plurality of inner fasteners, and the ends of the inner fasteners draw close inwards and can be tightly attached to a bottle opening to prevent leakage. A receding groove is formed in the sleeve head and communicated with an air suction pipe, air suction is conducted through an external air suction pump, sealing of a bottle opening is enhanced, air in a bottle can be evacuated, and the quality of glue liquid is guaranteed. In addition, the sleeve head is installed on the glue filling pipe in a sliding mode and adapts to filling bottles of different specifications. The linear push rod on the glue filling machine accurately controls the lifting of the glue filling pipe, and is matched with the buffer protection of the elastomer outside the glue filling pipe, thereby prolonging the service life of equipment, and being reasonable in overall structural design.

Description

Technical Field

[0001] This utility model relates to the field of filling mechanism technology, specifically to a sealant quantitative filling mechanism. Background Technology

[0002] Traditional sealant filling methods often have many drawbacks. On the one hand, in terms of sealing, many filling devices use a simple straight-insertion filling tube structure, which does not fit tightly between the filling tube and the bottle mouth. This makes it very easy for the sealant to leak from the gaps in the bottle mouth during the filling process. This not only wastes the sealant, but the leaked sealant may also contaminate the filling equipment and the surrounding environment, increasing subsequent cleaning costs.

[0003] On the other hand, from the perspective of filling accuracy, traditional filling equipment struggles to precisely control the amount of adhesive dispensed. Due to the lack of effective auxiliary positioning and precise drive mechanisms, the depth to which the dispensing tube is inserted into the bottle is inconsistent, and the adhesive flow rate is unstable, easily leading to over- or under-dispensing. Over-dispensing causes sealant to overflow from the bottle, affecting the product's appearance and increasing costs; under-dispensing fails to meet sealing requirements, resulting in substandard product sealing performance.

[0004] Therefore, this utility model provides a sealant quantitative filling mechanism to solve the above problems. Utility Model Content

[0005] To address the aforementioned technical shortcomings, the purpose of this utility model is to provide a sealant quantitative filling mechanism that enables precise, efficient, and stable filling, is compatible with various filling bottles, and improves the sealant filling production level.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: The present invention provides a sealant quantitative filling mechanism, comprising:

[0007] A glue dispensing machine and a glue dispensing tube connected to the glue dispensing machine, the glue dispensing tube being able to be inserted into a filling bottle for holding sealant;

[0008] A sleeve, which is fitted over the outside of the glue-dispensing tube, has an inner buckle installed at its end. The inner buckle includes multiple inner fasteners, the ends of which are brought together inward.

[0009] The sleeve has a relief groove inside, and an air extraction pipe is connected to the sleeve and is connected to an external air pump.

[0010] Preferably, the sleeve is slidably mounted on the glue-dispensing tube, and the glue-dispensing tube can extend beyond the inner fastener.

[0011] Preferably, the end connections of the plurality of inner fasteners are provided with round holes.

[0012] Preferably, the upper end of the relief groove is a circular conical surface, the inside of the sleeve is provided with an inner tube, the inner tube is connected to the upper end of the relief groove, and the inner tube is connected to the air extraction pipe.

[0013] Preferably, a linear push rod is fixed on the dispensing machine, and the output end of the linear push rod is connected to the dispensing tube.

[0014] Preferably, an elastic body is sleeved on the outside of the dispensing tube, one end of the elastic body is pressed against the dispensing machine, and the other end is fixed to the dispensing tube.

[0015] Preferably, a connecting plate is fixed to one side of the glue-dispensing tube, and a baffle is fixed to the output end of the linear push rod through the connecting plate.

[0016] Preferably, the inner fastener is made of rubber.

[0017] Preferably, the plurality of elastic bodies are springs, and the glue-filling tube is provided with a groove adapted to the spring.

[0018] Preferably, each of the inner fasteners has a supporting rib inside, the supporting ribs are close together inward, and the ends of the supporting ribs form a circle with a diameter larger than that of the glue-filling tube.

[0019] The beneficial effects of this utility model are as follows:

[0020] This sealant dispensing mechanism offers high precision in both sealing and filling. The sleeve and inner buckle fit tightly against the bottle neck to prevent leakage. The vacuum system creates negative pressure, enhancing the seal and removing air from the bottle to prevent oxidation and bubbles, ensuring product quality. The telescopic design of the dispensing tube allows it to accommodate bottles of varying heights and diameters, eliminating the need for frequent parts changes and meeting diverse filling needs. A linear push rod precisely controls the dispensing process, while an elastomer cushions impacts, protecting the dispensing tube and bottle neck and reducing wear. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of this utility model.

[0022] Figure 2 This is an internal view of the glue dispensing tube.

[0023] Figure 3 This is a 3D view of the glue dispensing tube.

[0024] Figure 4 This is a cross-sectional view of the head.

[0025] Figure 5 This is an internal view of the internal fastener.

[0026] Figure 6 for Figure 2 Enlarged view of point A.

[0027] In the diagram: 1. Dispensing machine, 2. Dispensing tube, 3. Elastomer, 4. Evacuation tube, 5. Sleeve, 6. Inner fastener, 7. Baffle, 8. Connecting plate, 9. Linear push rod, 10. Relief groove, 11. Inner tube, 12. Support rib. Detailed Implementation

[0028] The present invention is illustrated below with specific embodiments, but these are not intended to limit the scope of the invention.

[0029] Example 1

[0030] In this embodiment, a sealant quantitative filling mechanism is provided, including a dispensing machine 1, a dispensing tube 2 and a sleeve 5 connected to the dispensing machine 1.

[0031] The dispensing tube 2 can be inserted into the filling bottle used to hold the sealant.

[0032] The sleeve 5 is fitted onto the outside of the glue-dispensing tube 2. The end of the sleeve 5 is equipped with an inner buckle, which includes multiple inner buckles 6. The ends of the inner buckles 6 are close together inward.

[0033] The sleeve 5 has a recessed groove 10 inside, and an air extraction pipe 4 is connected to the sleeve 5. The air extraction pipe 4 is connected to an external air pump. The dispensing tube 2 is inserted into the filling bottle, and the sleeve 5 wraps around the outside of the dispensing tube 2. Multiple inner fasteners 6 of the inner buckle form an inwardly contracting sealing ring. The air extraction pipe 4 is connected to the inside of the sleeve 5 through the recessed groove 10. The operation of the air pump creates a negative pressure inside the sleeve 5. The inner buckle seals the bottle opening to prevent glue from overflowing during dispensing; the negative pressure environment can absorb residual glue and avoid dripping and contamination.

[0034] Example 2

[0035] Based on Embodiment 1, this embodiment provides the structure of the sleeve 5, as detailed below.

[0036] The sleeve 5 is slidably mounted on the dispensing tube 2, which extends beyond the inner fastener 6. The sleeve 5 is slidably adjusted to change the position of the inner fastener 6. After dispensing, the sleeve 5 is retracted to loosen the inner fastener 6. This facilitates quick insertion and removal of the dispensing tube 2 from the bottle opening and prevents the inner fastener 6 from being deformed by long-term compression, thus extending its lifespan.

[0037] Multiple internal fasteners 6 have round holes at their end connections. These holes are small in diameter, allowing sealant to accumulate and prevent leakage for a short time. When sealant is injected through the dispensing tube 2, the round holes temporarily trap the sealant due to surface tension, creating a "liquid seal" effect. This quantitative control of the dispensing volume prevents continuous dripping of sealant after dispensing stops.

[0038] The upper end of the relief groove 10 is a circular conical surface. The sleeve 5 has an inner tube 11 inside, which connects to the upper end of the relief groove 10 and to the suction pipe 4. After the glue is poured, sealant will remain at the end of the glue pouring tube 2. Under gravity, the sealant will flow downwards onto the inner fastener 6. With the suction from the suction pipe 4 and the inner tube 11, the remaining sealant flows upwards, preventing it from flowing out onto the inner fastener 6. After the glue is poured, the remaining glue flows downwards onto the inner fastener 6 due to gravity. The suction pipe 4, through the inner tube 11, draws air, causing the remaining glue to flow back into the glue pouring tube 2. This thoroughly removes any residual glue from the end of the glue pouring tube 2 and the inner fastener 6, preventing the glue from hardening and clogging or contaminating the bottle opening.

[0039] The inner fastener 6 is made of rubber, whose elasticity and flexibility allow it to fit snugly against the irregular surface of the bottle opening. This improves sealing reliability (to accommodate bottle opening manufacturing tolerances) and reduces frictional damage between the inner fastener 6 and the bottle opening.

[0040] Each of the inner fasteners 6 has internal support ribs 12. These support ribs 12 converge inwards, and their ends form a circle with a diameter larger than that of the dispensing tube 2. The support ribs 12 maintain the structural strength of the inner fasteners 6 and provide a guiding channel for the dispensing tube 2. This prevents the inner fasteners 6 from collapsing under pressure and ensures that the dispensing tube 2 is inserted in the center, avoiding scratching against the inner wall of the bottle opening.

[0041] Example 3

[0042] Based on Embodiment 1 and Embodiment 2, this embodiment provides a method for fixing the glue-dispensing tube 2, as follows:

[0043] A linear push rod 9 is fixed on the dispensing machine 1. The output end of the linear push rod 9 is connected to the dispensing tube 2. The push rod precisely controls the insertion depth of the dispensing tube 2 to ensure consistent dispensing position each time. This improves dispensing accuracy and adapts to bottle neck heights of different sizes.

[0044] A connecting plate 8 is fixed to one side of the dispensing tube 2. A baffle 7 is fixed to the output end of the linear push rod 9 through the connecting plate 8. The baffle 7 limits the maximum extension length of the dispensing tube 2, and the connecting plate 8 disperses the force of the push rod. This prevents the dispensing tube 2 from being over-inserted and damaging the bottom of the bottle; enhances structural stability; and avoids uneven loading of the push rod.

[0045] An elastomer 3 is fitted onto the outside of the dispensing tube 2. One end of the elastomer 3 presses against the dispensing machine 1, while the other end is fixed to the dispensing tube 2, providing axial cushioning. This absorbs the impact when the dispensing tube 2 is inserted, protecting the bottle mouth and inner buckle; and maintaining a stable sealing pressure between the dispensing tube 2 and the inner buckle. Multiple elastomers 3 are springs, and the dispensing tube 2 has grooves that fit the springs. The springs are fixed through these grooves, providing constant radial pressure when compressed, ensuring a seal between the sleeve 5 and the dispensing tube 2. This simplifies the installation of the elastomer 3 (no glue or additional fasteners required) and facilitates spring maintenance and replacement.

[0046] Working principle:

[0047] Driven by the linear push rod 9, the dispensing tube 2 moves forward, and the sleeve 5 slides along the dispensing tube 2 to above the bottle mouth. The rubber inner buckle initially fits the bottle mouth under the pressure of the elastic body 3, and the support rib 12 ensures that the dispensing tube 2 is inserted in the center. The dispensing tube 2 extends into the bottom of the bottle, and the tiny round hole at the end of the inner buckle 6 traps the glue due to surface tension, forming a quantitative liquid seal.

[0048] The amount of glue injected is precisely controlled by the volume of the round hole. After the glue dispensing stops, the air pump draws air from the sleeve 5 through the inner tube 11-leaning groove 10 to form a negative pressure zone. The residual glue flows back to the dispensing tube 2 under the combined action of gravity and air pressure difference to avoid dripping. The sleeve 5 retracts and loosens the inner buckle. The dispensing tube 2 exits the bottle mouth under the buffer of the elastomer 3, completing a single cycle.

[0049] Finally, it should be noted that the above embodiments are only used to illustrate and not limit the technical solutions of this utility model. Although this utility model has been described in detail with reference to the above embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to this utility model without departing from the spirit and scope of this utility model. Any modifications or partial substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A sealant metering filling mechanism, characterized in that, include: A glue dispensing machine (1) and a glue dispensing tube (2), the glue dispensing tube (2) being able to be inserted into a filling bottle for holding sealant; A sleeve (5) is fitted over the outside of the glue-filling tube (2). An inner buckle is installed at the end of the sleeve (5). The inner buckle includes multiple inner fasteners (6). The ends of the inner fasteners (6) are close together inward. The sleeve (5) has a relief groove (10) inside, and the sleeve (5) is connected to an air extraction pipe (4), which is connected to an external air extraction pump.

2. The sealant metering filling mechanism according to claim 1, characterized in that, The sleeve (5) is slidably mounted on the glue-filling tube (2), which can extend outside the inner fastener (6).

3. The sealant metering filling mechanism according to claim 1, characterized in that, The ends of the multiple inner fasteners (6) are provided with round holes.

4. The sealant metering filling mechanism according to claim 3, characterized in that, The upper end of the relief groove (10) is a circular conical surface. The sleeve (5) is provided with an inner tube (11). The inner tube (11) is connected to the upper end of the relief groove (10) and the inner tube (11) is connected to the air extraction pipe (4).

5. The sealant metering filling mechanism according to claim 1, characterized in that, A linear push rod (9) is fixed on the glue dispensing machine (1), and the output end of the linear push rod (9) is connected to the glue dispensing tube (2).

6. The sealant metering filling mechanism according to claim 5, characterized in that, An elastomer (3) is sleeved on the outside of the glue dispensing tube (2). One end of the elastomer (3) presses against the glue dispensing machine (1), and the other end is fixed to the glue dispensing tube (2).

7. The sealant metering filling mechanism according to claim 5, characterized in that, A connecting plate (8) is fixed to one side of the glue-filling tube (2), and a baffle (7) is fixed to the output end of the linear push rod (9) through the connecting plate (8).

8. The sealant metering filling mechanism according to claim 1, characterized in that, The inner fastener (6) is made of rubber.

9. A sealant metering filling mechanism according to claim 6, characterized in that, The multiple elastic bodies (3) are springs, and the glue tube (2) is provided with a groove that is adapted to the spring.

10. A sealant metering filling mechanism according to claim 1, characterized in that, Each of the inner fasteners (6) is provided with a support rib (12), the support ribs (12) move inward and the ends of the support ribs (12) form a circle, the diameter of which is larger than the diameter of the glue tube (2).

Images