Piston type ultra-low leakage rapid sealing glue barrel cover structure of glue injection machine

Abstract

The utility model discloses a piston type ultra-low leakage quick sealing glue barrel cover structure of a glue injection machine, which comprises a glue barrel and an air leakage pipe, a sealing cover is arranged at the top of the glue barrel, the sealing cover and the glue barrel are buckled and connected through a buckle so as to enable the sealing cover to be quickly disassembled or buckled, a sealing assembly is arranged in the sealing cover, and the air leakage pipe is connected with the air leakage pipe. The sealing assembly comprises a pressing plate and an annular sealing ring, the pressing plate is slidably connected into the sealing cover, the annular sealing ring is connected to the bottom of the pressing plate, and the air leakage pipe is arranged at the top of the sealing cover and used for discharging air accumulated in the glue barrel. The glue barrel cover and the glue barrel are efficiently sealed through the sealing assembly and the pressing effect of a pressing plate in the sealing assembly on an annular sealing ring, the leakage problem caused by untight attachment or aging and abrasion of a rubber ring can be effectively solved through the sealing mode, the glue liquid leakage risk is greatly reduced, glue liquid waste is reduced, and cleanliness of the production environment is guaranteed.

Description

Technical Field

[0001] This utility model belongs to the field of glue dispensing machine technology, specifically relating to a piston-type ultra-low leakage fast-sealing glue bucket lid structure for a glue dispensing machine. Background Technology

[0002] In modern industrial production, dispensing machines are widely used, from the precision manufacturing of electronic products, such as chip packaging and circuit board bonding, to the production of automotive parts, such as engine block sealing and lamp assembly. All these processes rely on the precise and stable dispensing of adhesive by dispensing machines. As a storage container for adhesive, the glue bucket provides a stable storage space for the adhesive, storing a sufficient amount of adhesive to provide enough adhesive for the dispensing machine. The glue bucket lid, as a key component of the glue bucket, provides sufficient sealing to prevent the adhesive stored inside from leaking.

[0003] Currently, most glue dispensing machine glue buckets use simple flat seals or rubber ring seals. Flat seals are prone to glue leakage due to micro-gaps caused by poor fit between the lid and the bucket opening. Rubber ring seals, on the other hand, age and wear over time, reducing elasticity and sealing performance. Especially during glue dispensing, the pressure inside the glue bucket changes frequently, making it difficult for these sealing methods to guarantee a consistently effective seal. Glue leakage not only results in waste but also pollutes the production environment and affects product quality. Utility Model Content

[0004] The purpose of this invention is to provide a piston-type ultra-low leakage quick-sealing glue bucket lid structure for a glue dispensing machine, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a piston-type ultra-low leakage fast-sealing glue bucket cap structure for a glue dispensing machine, comprising:

[0006] A glue bucket, the top of which is provided with a sealing cap for sealing the glue bucket. The sealing cap and the glue bucket are connected by a snap-fit ​​device to allow the sealing cap to be quickly disassembled or fastened. The sealing cap is provided with a sealing component for sealing the connection between the sealing cap and the glue bucket. The sealing component includes a pressure plate and an annular sealing ring. The pressure plate is slidably connected inside the sealing cap, and the annular sealing ring is connected to the bottom of the pressure plate for sealing the annular sealing groove provided inside the top of the glue bucket.

[0007] A vent pipe, located at the top of the sealing cap, is used to release the gas accumulated inside the glue container.

[0008] Preferably, the sealing cover has a threaded cylinder at the top center and a threaded rod is threadedly connected inside the threaded cylinder, and one end of the threaded rod is rotatably connected to the pressure plate through a bearing.

[0009] Preferably, the top of the pressure plate is connected to several guide rods, and the other end of the guide rods slides through the guide groove provided inside the sealing cover.

[0010] Preferably, the fastener is an elastic fastener, and there are two sets of elastic fasteners respectively connected to both ends of the sealing cover.

[0011] Preferably, the top two ends of the glue bucket are respectively connected to arc-shaped locking blocks, and the elastic buckle cooperates with the arc-shaped locking blocks to engage.

[0012] Preferably, a sealing block is slidably connected inside the vent pipe, and the vent pipe has an opening, with the sealing block used to seal the opening.

[0013] Preferably, a baffle is connected inside the vent pipe, a sliding rod is connected to the top of the sealing block and the other end of the sliding rod slides through the baffle, and a spring is sleeved on the surface of the sliding rod and the two ends of the spring are respectively connected to the baffle and the sealing block.

[0014] Preferably, the sealing block and the opening are sealed with a sealing gasket, the sealing block has an air vent, and the baffle has an exhaust vent.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] (1) By the tight fit between the annular sealing ring and the annular sealing groove on the top of the glue bucket, and the pressing action of the pressure plate in the sealing assembly on the annular sealing ring, a high-efficiency seal between the glue bucket lid and the glue bucket is achieved. This sealing method can effectively avoid leakage problems caused by poor fit or aging and wear of the rubber ring, greatly reducing the risk of glue leakage, reducing glue waste, and ensuring the cleanliness of the production environment.

[0017] (2) The buckle connection method of elastic buckle and arc-shaped buckle block is adopted. The sealing cover can be quickly fastened to or removed from the glue bucket. When it is necessary to replace or open the glue bucket, the operator does not need to spend a lot of time on complicated tightening or loosening operations, which significantly improves work efficiency.

[0018] (3) The vent pipe and its internal components such as the sealing block, spring, and baffle work together to automatically regulate the pressure inside the glue bucket. When the gas accumulates inside the glue bucket and the pressure rises, the gas pushes the sealing block to overcome the spring force and move upward, opening the opening to release the gas, balancing the pressure inside the glue bucket, and preventing glue leakage due to excessive pressure. During normal glue injection, the sealing block tightly blocks the opening under the action of the spring to prevent outside air from entering the glue bucket and affecting the quality of the glue. Attached Figure Description

[0019] Figure 1This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is a cross-sectional view of the glue bucket and sealing cap of this utility model when they are connected;

[0021] Figure 3 This is a cross-sectional view of the vent pipe of this utility model;

[0022] Figure 4 This is a top view of the glue bucket of this utility model.

[0023] In the diagram: 1. Glue bucket; 2. Sealing cap; 3. Pressure plate; 4. Annular sealing ring; 5. Annular sealing groove; 6. Vent pipe; 7. Threaded cylinder; 8. Threaded rod; 9. Guide rod; 10. Guide groove; 11. Elastic buckle; 12. Arc-shaped locking block; 13. Sealing block; 14. Opening; 15. Baffle; 16. Slide rod; 17. Spring; 18. Sealing gasket; 19. Vent hole; 20. Exhaust hole. 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] This utility model provides, for example Figure 1-4 The piston-type ultra-low leakage quick-sealing glue bucket cap structure of the dispensing machine shown includes:

[0026] A glue bucket 1 is provided with a sealing cap 2 on its top for sealing the glue bucket 1. The sealing cap 2 is connected to the glue bucket 1 by a snap-fit ​​device so that the sealing cap 2 can be quickly disassembled or fastened. The sealing cap 2 is provided with a sealing component for sealing the connection between the sealing cap 2 and the glue bucket 1. The sealing component includes a pressure plate 3 and an annular sealing ring 4. The pressure plate 3 is slidably connected to the sealing cap 2, and the annular sealing ring 4 is connected to the bottom of the pressure plate 3 for sealing the annular sealing groove 5 provided in the top of the glue bucket 1.

[0027] Vent pipe 6, located at the top of sealing cover 2, is used to discharge the gas accumulated in the glue bucket 1.

[0028] The sealing cover 2 has a threaded cylinder 7 at the top center and a threaded rod 8 is threadedly connected to the threaded cylinder 7. One end of the threaded rod 8 is rotatably connected to the pressure plate 3 through a bearing.

[0029] The top of the pressure plate 3 is connected to several guide rods 9, and the other end of the guide rods 9 slides through the guide groove 10 provided in the sealing cover 2. When the position of the pressure plate 3 is adjusted by rotating the threaded rod 8, the sliding of the guide rods 9 in the guide groove 10 provides precise guidance for the pressure plate 3, preventing the pressure plate 3 from tilting or shaking.

[0030] The fastener is an elastic buckle 11, and the elastic buckle 11 has two sets and is respectively connected to both ends of the sealing cover 2.

[0031] The top two ends of the glue bucket 1 are respectively connected to arc-shaped locking blocks 12, and the elastic buckle 11 cooperates with the arc-shaped locking blocks 12 to engage.

[0032] A sealing block 13 is slidably connected inside the vent pipe 6. The vent pipe 6 has an opening 14 and the sealing block 13 is used to seal the opening 14.

[0033] A baffle 15 is connected inside the vent pipe 6. A slide rod 16 is connected to the top of the sealing block 13, and the other end of the slide rod 16 slides through the baffle 15. A spring 17 is sleeved on the surface of the slide rod 16, and the two ends of the spring 17 are respectively connected to the baffle 15 and the sealing block 13. The slide rod 16 restricts the sealing block 13 to move only along the axial direction of the slide rod 16, so as to prevent it from deviating or shaking during the movement.

[0034] A sealing gasket 18 is provided at the sealing point between the sealing block 13 and the opening 14. The sealing block 13 has an air vent 19, and the baffle 15 has an exhaust vent 20. The sealing gasket 18 is made of rubber. When the glue bucket 1 is working normally, the sealing block 13 is pressed tightly against the opening 14 under the action of the spring 17, and the sealing gasket 18 is sandwiched in the middle. It can fill the small unevenness and gap between the sealing block 13 and the opening 14, thereby effectively preventing gas leakage and ensuring the sealing of the inside of the glue bucket 1.

[0035] The piston-type ultra-low leakage quick-sealing glue bucket lid structure of this dispensing machine allows the operator to move the sealing lid 2 above the glue bucket 1, carefully adjust its position to ensure that the elastic buckle 11 is aligned with the arc-shaped locking block 12 on the top of the glue bucket 1, and then apply a certain amount of pressure vertically downward to the sealing lid 2. During this process, the elastic buckle 11 will be compressed and undergo a certain degree of elastic deformation. After the elastic buckle 11 slides past the arc-shaped locking block 12, it will quickly return to its original shape and tightly lock into the arc-shaped locking block 12, thus achieving the initial quick connection between the sealing lid 2 and the glue bucket 1. This buckle connection method is simple and quick to operate, and the installation and positioning of the sealing lid 2 can be completed in a short time. After the buckle connection is completed, the operator begins to rotate the threaded rod 8. Since the threaded rod 8 and the threaded cylinder 7 are connected by a thread, according to the principle of thread transmission, when the threaded rod 8 rotates, it will move along the axis of the threaded cylinder 7. As the threaded rod 8 moves, one end of the threaded rod 8 is rotatably connected to the pressure plate 3 via a bearing. This ensures that the pressure plate 3 does not rotate during the rotation of the threaded rod 8, but instead moves linearly along the guide rod 9 within the sealing cover 2 under the push of the threaded rod 8. The guide rod 9 and the guide groove 10 within the sealing cover 2 are tightly fitted together, providing precise guidance and preventing the pressure plate 3 from shifting or wobbling during movement, ensuring its smooth descent. As the pressure plate 3 descents, it exerts downward pressure on the annular sealing ring 4 at the bottom, causing the annular sealing ring 4 to gradually enter the annular sealing groove 5 at the top of the glue bucket 1. The annular sealing ring 4 is made of rubber material with good elasticity and sealing performance. After being subjected to the pressure of the pressure plate 3, it undergoes elastic deformation and tightly fills the annular sealing groove 5, achieving all-round fit with the groove wall, thereby forming a reliable sealing barrier and effectively preventing glue leakage.

[0036] When the glue dispensing machine starts working, because the connector of the glue dispensing machine is tightly connected to the interface of glue tank 1 (not shown in the attached diagram), the power device (such as a piston or pneumatic device) applies pressure to the glue liquid in glue tank 1, causing the glue liquid to flow through the dispensing tube to the glue gun head. During this process, the flow of glue liquid generates a certain amount of friction and impact force. At the same time, some glue liquid may undergo chemical reactions to produce gas. These factors will cause changes in the pressure inside glue tank 1. Generally, as glue dispensing proceeds, the pressure inside glue tank 1 will gradually increase. When the pressure inside glue tank 1 rises to a certain level and exceeds the elastic force of spring 17 on sealing block 13, the pressure generated by the gas will push sealing block 13 upward. During the upward movement of sealing block 13, it will gradually compress spring 17, causing... Spring 17 stores elastic potential energy. As the sealing block 13 moves upward, the opening 14, which was originally blocked by the sealing block 13, gradually opens. At this time, the gas accumulated in the glue bucket 1 will enter the vent 19 area through the opening 14, and then be discharged to the outside environment through the vent 20. During the gas discharge process, the pressure in the glue bucket 1 will gradually decrease. When the pressure decreases to a certain level, the elastic force of spring 17 is greater than the gas pressure. Spring 17 will release elastic potential energy, push the sealing block 13 downward, and re-block the opening 14 to prevent outside air from entering the glue bucket 1 and affecting the quality and performance of the glue. This ensures that the pressure in the glue bucket 1 is always kept within a stable range, which not only ensures the smooth progress of the glue injection process, but also avoids problems such as glue leakage caused by excessive pressure.

[0037] When the glue dispensing operation is completed and it is necessary to clean, replace the glue, or maintain the internal components of the glue tank 1, the operator only needs to hold the elastic buckle 11 and pry it outwards to cause the elastic buckle 11 to deform elastically and separate from the arc-shaped locking block 12. Once the elastic buckle 11 is separated from the arc-shaped locking block 12, the connection constraint between the sealing cover 2 and the glue tank 1 is released, and the operator can easily remove the sealing cover 2 from the glue tank 1. After the sealing cover 2 is removed, the operator can inspect and clean the sealing components such as the annular sealing ring 4 and the sealing block 13. If the annular sealing ring 4 is found to be worn or aged, it can be replaced in time to ensure the sealing effect in the next use. After completing the maintenance work, the sealing cover 2 is reinstalled on the glue tank 1 according to the operation steps of the installation stage, and the next round of glue dispensing operation can begin. The whole process forms a complete work cycle, realizing the efficient sealing and stable operation of the glue tank 1 of the glue dispensing machine.

[0038] 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 piston-type ultra-low leakage quick-sealing glue bucket lid structure for a glue dispensing machine, characterized in that, include: A glue bucket (1) is provided with a sealing cover (2) on the top of the glue bucket (1) for sealing the glue bucket (1). The sealing cover (2) and the glue bucket (1) are connected by a snap fastener so that the sealing cover (2) can be quickly disassembled or fastened. The sealing cover (2) is provided with a sealing component for sealing the connection between the sealing cover (2) and the glue bucket (1). The sealing component includes a pressure plate (3) and an annular sealing ring (4). The pressure plate (3) is slidably connected to the sealing cover (2). The annular sealing ring (4) is connected to the bottom of the pressure plate (3) for sealing the annular sealing groove (5) provided in the top of the glue bucket (1). Vent pipe (6), which is located on top of the sealing cover (2), is used to discharge the gas accumulated in the glue bucket (1).

2. The piston-type ultra-low leakage quick-sealing glue bucket lid structure for a glue dispensing machine according to claim 1, characterized in that: The sealing cover (2) has a threaded cylinder (7) at the top center and a threaded rod (8) is threaded inside the threaded cylinder (7). One end of the threaded rod (8) is rotatably connected to the pressure plate (3) through a bearing.

3. The piston-type ultra-low leakage quick-sealing glue bucket cap structure for a glue dispensing machine according to claim 1, characterized in that: The top of the pressure plate (3) is connected to several guide rods (9), and the other end of the guide rods (9) slides through the guide groove (10) provided in the sealing cover (2).

4. The piston-type ultra-low leakage quick-sealing glue bucket cap structure for a glue dispensing machine according to claim 1, characterized in that: The fastener is an elastic buckle (11), and the elastic buckle (11) has two sets and is respectively connected to both ends of the sealing cover (2).

5. The piston-type ultra-low leakage quick-sealing glue bucket lid structure for a glue dispensing machine according to claim 4, characterized in that: The top two ends of the glue bucket (1) are respectively connected to arc-shaped clips (12), and the elastic buckle (11) cooperates with the arc-shaped clips (12) to engage.

6. The piston-type ultra-low leakage quick-sealing glue bucket cap structure for a glue dispensing machine according to claim 1, characterized in that: A sealing block (13) is slidably connected inside the vent pipe (6), and an opening (14) is provided inside the vent pipe (6), and the sealing block (13) is used to seal the opening (14).

7. The piston-type ultra-low leakage quick-sealing glue bucket lid structure for a glue dispensing machine according to claim 6, characterized in that: A baffle (15) is connected inside the vent pipe (6). A slide rod (16) is connected to the top of the sealing block (13), and the other end of the slide rod (16) slides through the baffle (15). A spring (17) is sleeved on the surface of the slide rod (16), and the two ends of the spring (17) are respectively connected to the baffle (15) and the sealing block (13).

8. The piston-type ultra-low leakage quick-sealing glue bucket lid structure for a glue dispensing machine according to claim 7, characterized in that: A sealing gasket (18) is provided at the sealing point between the sealing block (13) and the opening (14), an air vent (19) is provided inside the sealing block (13), and an exhaust vent (20) is provided inside the baffle (15).

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