dispensing equipment

Abstract

This invention relates to the field of glue dispensing technology and discloses a glue dispensing device. The device includes: a glue storage cylinder with a glue outlet and an air inlet connected in communication. The glue outlet is adapted to cover the glue dispensing position of the component to be glued, and the air inlet is adapted to communicate with an air source; an air guide cylinder inserted into the glue storage cylinder, the air guide cylinder having a hollow cavity to form a limiting space suitable for inserting the component to be glued; and a sealing structure disposed on the glue storage cylinder and surrounding the joint between the glue storage cylinder and the glue dispensing position of the component to be glued. The glue dispensing device of this invention has the advantage of high glue dispensing efficiency.

Description

Technical Field

[0001] This invention relates to the field of glue dispensing technology, and more specifically to a glue dispensing device. Background Technology

[0002] The assembly to be glued includes a sleeve and a core, with the core inserted inside the sleeve. Relative movement may occur between the core and the sleeve, therefore glue needs to be injected between the sleeve and the core to fix their relative position. Related technologies typically use a syringe to inject glue into the assembly, which has low injection efficiency. Summary of the Invention

[0003] In view of this, the present invention provides a dispensing device to solve the problem of low dispensing efficiency.

[0004] This invention provides a glue dispensing device, comprising: a glue storage cylinder having a glue outlet and an air inlet connected in communication, the glue outlet being adapted to cover the glue dispensing position of the component to be glued, and the air inlet being adapted to communicate with an air source; an air guide cylinder inserted into the glue storage cylinder, the air guide cylinder having a hollow cavity to form a limiting space suitable for inserting the component to be glued; and a sealing structure disposed on the glue storage cylinder and surrounding the joint between the glue storage cylinder and the glue dispensing position of the component to be glued.

[0005] Beneficial effects: The glue-dispensing device of this embodiment covers the glue-dispensing position of the component to be glued with the glue outlet, and the sealing structure surrounds both the glue outlet and the glue-dispensing position of the component to be glued. That is, the sealing structure can be located between the glue storage cylinder and the sleeve, achieving the effect of sealing the gap between the glue storage cylinder and the sleeve. Glue is unlikely to leak from between the glue storage cylinder and the sleeve, and the amount of glue in the glue storage cylinder can be maintained at a sufficient level. The start and stop of glue dispensing into the component to be glued can be controlled simply by controlling the air intake duration. Furthermore, since the glue storage cylinder surrounds the core, the glue in the storage cylinder also surrounds the core. Under the action of air pressure, glue is evenly dispensed between different areas of the core and the sleeve, resulting in uniform glue distribution in the core and sleeve. This eliminates the need for multiple glue dispensing operations, improving glue dispensing efficiency and significantly reducing glue dispensing time.

[0006] In one optional embodiment, the air guide cylinder includes: a threaded tube, the limiting space being formed inside the threaded tube; and an air guide tube connected to the outer peripheral surface of the threaded tube; wherein, in the axial direction of the glue storage cylinder, the air guide cylinder is located between the glue outlet and the air inlet, and the air inlet is connected to the glue outlet at least through the air guide tube.

[0007] Beneficial effects: It can prevent the core from bending and being damaged, and it can also guide the airflow from the air inlet to the glue outlet.

[0008] In one optional embodiment, the air guide tube is arranged circumferentially along the threaded tube, and the air guide tube is provided with multiple air guide channels. The multiple air guide channels are arranged at intervals along the circumferential direction of the threaded tube, and the air inlet is connected to the glue outlet through the air guide channels.

[0009] Beneficial effects: It increases the air volume of the air duct and ensures that the adhesive in the storage cylinder is subjected to uniform stress, thus ensuring uniform adhesive distribution between the sleeve and the core.

[0010] In one optional embodiment, the glue storage cylinder is provided with a glue injection port, which is located between the air guide cylinder and the glue outlet in the axial direction of the glue storage cylinder; a one-way valve is provided at the glue injection port, which is used to prevent the glue in the glue storage cylinder from flowing out of the glue injection port.

[0011] Beneficial effects: It can replenish glue into the glue storage tank through the glue inlet, while preventing glue in the glue storage tank from flowing out of the glue inlet.

[0012] In one alternative embodiment, the end of the threading tube facing the glue outlet is closer to the glue outlet than the end of the air guide tube facing the glue outlet; and / or the end face of the air guide tube facing the air inlet is flush with the end face of the threading tube facing the air inlet.

[0013] Beneficial effects: Reduced cost and weight, and the core is covered by a larger area of ​​the conduit, reducing the contact area between the core and the adhesive.

[0014] In one optional embodiment, the glue storage cylinder is provided with a pressure relief port, and a pressure relief valve is provided at the pressure relief port; wherein, the glue storage cylinder is provided with a glue storage space, and in the axial direction of the glue storage cylinder, the glue storage space is located between the air guide cylinder and the glue outlet, and the pressure relief port is located on the side of the glue storage space opposite to the glue outlet.

[0015] Beneficial effects: It makes it easier to control the air pressure range inside the glue reservoir, and the glue is less likely to flow to the pressure relief port, thus preventing the glue from clogging the pressure relief port.

[0016] In one optional embodiment, the glue dispensing device further includes: an air inlet nozzle, which is connected to the glue storage cylinder and communicates with the air inlet, wherein the air inlet and the glue outlet are respectively located at opposite ends in the axial direction of the glue storage cylinder, and the air inlet nozzle is adapted to be connected to the air source.

[0017] Beneficial effects: It can realize the connection between the glue dispensing device and the air source, and also make the distance between the air inlet nozzle and the component to be glued larger, so as to avoid interference between the air source connected to the air inlet nozzle and the component to be glued.

[0018] In one optional embodiment, the sealing structure includes: a first sealing gasket located axially in the glue storage cylinder between the glue storage cylinder and the sleeve; and / or a second sealing gasket located radially in the glue storage cylinder between the glue storage cylinder and the sleeve.

[0019] Beneficial effects: It avoids adhesive pollution of the surrounding environment, reduces adhesive waste, and improves adhesive utilization.

[0020] In one optional embodiment, the outer peripheral surface of the glue storage cylinder is provided with a connecting seat, and the glue dispensing device further includes a pressure plate. Along the axial direction of the glue storage cylinder, the pressure plate and the connecting seat are arranged at intervals to clamp the glue dispensing assembly.

[0021] Beneficial effects: Facilitates the connection and separation between the dispensing device and the components to be dispensed.

[0022] In one optional embodiment, the outer peripheral surface of the pressure plate is provided with a notch, which penetrates the pressure plate along the thickness direction.

[0023] Beneficial effects: The fit between the pressure plate and the sleeve is convenient, the operation is simple and easy to implement, and the size of the pressure plate is reduced, which can reduce costs and weight. Attached Figure Description

[0024] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0025] Figure 1 This is one of the schematic diagrams showing the connection between the dispensing device and the component to be dispensed according to an embodiment of the present invention;

[0026] Figure 2 This is a second schematic diagram showing the connection between the dispensing device and the component to be dispensed according to an embodiment of the present invention;

[0027] Figure 3 for Figure 1 A cross-sectional view along the AA direction;

[0028] Figure 4 for Figure 2 A cross-sectional view along the BB direction;

[0029] Figure 5 This is one of the structural schematic diagrams of the air guide tube of the glue dispensing device according to an embodiment of the present invention;

[0030] Figure 6 This is a second schematic diagram of the air guide tube of the glue-dispensing device according to an embodiment of the present invention;

[0031] Figure 7 for Figure 4 A cross-sectional view along the CC direction;

[0032] Figure 8 This is a schematic diagram of the pressure plate of the glue-dispensing device according to an embodiment of the present invention;

[0033] Figure 9 This is an exploded view of the nozzle seat and the first sealing gasket of the glue-dispensing device according to an embodiment of the present invention.

[0034] Explanation of reference numerals in the attached figures:

[0035] 1. Glue dispensing device; 2. Component to be dispensed; 21. Sleeve; 22. Connector seat; 23. Core; 24. Groove; 100. Glue storage cylinder; 101. Glue outlet; 102. Air inlet; 103. Glue injection port; 104. Pressure relief port; 105. Connecting seat; 200. Air guide tube; 201. Wiring conduit; 2011. Limiting space; 202. Air guide pipe; 2021. Air guide channel; 300. Air inlet nozzle; 310. Coarse section; 320. Transition section; 330. Shrink section; 400. First sealing gasket; 600. Pressure plate; 601. Notch; 700. One-way valve; 800. Pressure relief valve. Detailed Implementation

[0036] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0037] In related technologies, when injecting glue into the component 2 to be glued using a syringe, it cannot be guaranteed that the glue in all areas of the core 23 in the circumferential direction can be under pressure. This can lead to uneven distribution of glue between the sleeve 21 and the core 23. In particular, when the gap between the sleeve 21 and the core 23 is small, or when the sleeve 21 has a bent part, the flow resistance of the glue in the component 2 to be glued is large, and the glue has poor fluidity. Even if the syringe continuously injects glue into the component 2 to be glued, because the syringe does not completely cover the opening of the sleeve 21 and lacks a sealing structure, the glue may overflow from the opening of the sleeve 21 where it is not under pressure or where the pressure is low. Therefore, the syringe needs to control the amount and pressure of glue injection and cannot continuously inject a large amount of glue. This results in multiple injections to complete the glue injection process of the component 2 to be glued. The glue injection process takes a long time and has low production efficiency.

[0038] The following is combined with Figures 1 to 9 The following describes embodiments of the present invention.

[0039] like Figures 1-4 As shown, according to an embodiment of the present invention, a glue dispensing device 1 is provided, which includes a glue storage cylinder 100 and an air guide cylinder 200.

[0040] The glue storage cylinder 100 is provided with a glue outlet 101 and an air inlet 102 connected together. The glue storage cylinder 100 is used to store glue. The glue outlet 101 is adapted to be connected to the sleeve 21 of the component to be glued 2. The glue outlet 101 is adapted to cover the glue filling position of the component to be glued 2 (i.e., the end of the sleeve 21 facing the glue filling device 1 is open). The air inlet 102 is adapted to be connected to an air source.

[0041] An air guide cylinder 200 is inserted into the glue storage cylinder 100. The air guide cylinder 200 has a hollow cavity to form a limiting space 2011 suitable for the insertion of the glue-to-be-filled assembly 2. The core 23 of the glue-to-be-filled assembly 2 can be inserted into the limiting space 2011. When air is introduced through the air inlet 102, the air pressure inside the glue storage cylinder 100 is increased to force the glue inside the glue storage cylinder 100 from the glue outlet 101 between the sleeve 21 and the core 23.

[0042] For example, the length of the core 23 extending out of the sleeve 21 toward the glue-dispensing device 1 can be 60mm to 100mm, such as 60mm, 65mm, 70mm, 75mm, 80mm, 85mm, 90mm, 95mm, or 100mm.

[0043] In this case, the core 23 of the glue-filled assembly 2 can be a wire, for example, the core 23 is a wire connected to a sensor. In this case, the glue-filled assembly 2 can be applied to the gas turbine guide to monitor the parameters of the gas turbine guide. The glue in the glue storage cylinder 100 can be insulating glue to improve the insulation performance between the core 23 and the sleeve 21.

[0044] When air is introduced through the air inlet 102, the air pressure inside the glue storage cylinder 100 increases. Under the pressure, the glue inside the glue storage cylinder 100 can easily enter between the core 23 and the sleeve 21. Since the glue storage cylinder 100 is connected to the sleeve 21, and the air guide cylinder 200 is connected to the core 23, a sealing structure is set on the glue storage cylinder 100. The sealing structure surrounds the glue outlet 101 and the glue filling position of the glue-to-be-filled assembly 2. The sealing structure surrounds the joint of the glue storage cylinder 100 and the glue filling position of the glue-to-be-filled assembly 2. That is, the sealing structure can be located between the glue storage cylinder 100 and the sleeve 21, so as to achieve the effect of sealing the gap between the glue storage cylinder 100 and the sleeve 21. The glue is difficult to leak from the glue storage cylinder 100 and the sleeve 21, and the amount of glue in the glue storage cylinder 100 can be kept in a sufficient state. By controlling the air intake time of the air inlet 102, the start and stop of glue filling into the glue-to-be-filled assembly 2 can be controlled. Furthermore, since the glue storage cylinder 100 surrounds the core 23, the glue inside the glue storage cylinder 100 also surrounds the core 23. Under the action of air pressure, the glue is evenly injected between the core 23 and the sleeve 21, and the glue distribution between the core 23 and the sleeve 21 is uniform. There is no need for multiple glue injections, which can improve glue injection efficiency and greatly reduce glue injection time.

[0045] For example, when the glue storage cylinder 100 is connected to the sleeve 21, a certain amount of glue is introduced into the glue storage cylinder 100. The glue needs to be kept at a distance from the air guide cylinder 200 to prevent the glue from flowing into the air guide cylinder 200 and contacting the core 23. Then, the air inlet 102 starts to introduce air. The air inlet 102 can be regulated by the previous glue filling time. In subsequent use, the air can be introduced directly according to the preset time to achieve automatic glue filling.

[0046] In addition, since the gas flowing into the glue storage cylinder 100 will push the glue to flow continuously relative to the core 23, it can prevent the glue from sticking to the core 23. While ensuring glue dispensing efficiency, it can also prevent the core 23 from sticking.

[0047] In some implementations, such as Figures 5-7 As shown, the air guide tube 200 includes a conduit 201 and an air guide tube 202. The conduit 201 and the air guide tube 202 can be integrally formed to ensure the structural strength and sealing performance of the air guide tube 200.

[0048] A limiting space 2011 is formed inside the conduit 201. The conduit 201 is suitable for housing the core 23. The air guide tube 202 is connected to the outer peripheral surface of the conduit 201. In the axial direction of the glue storage cylinder 100, the air guide tube 200 is located between the glue outlet 101 and the air inlet 102. The air inlet 102 is connected to the glue outlet 101 at least through the air guide tube 202.

[0049] For example, the outer circumferential surface of the air guide tube 202 and the inner circumferential surface of the glue storage cylinder 100 can be sealed together. For example, the outer circumferential surface of the air guide tube 202 and the inner circumferential surface of the glue storage cylinder 100 can be welded together, or a sealing structure such as a sealing ring can be provided between the air guide tube 202 and the inner circumferential surface of the glue storage cylinder 100 to prevent gas in the glue storage cylinder 100 from leaking between the air guide tube 202 and the inner circumferential surface of the glue storage cylinder 100, ensuring that the air pressure in the glue storage cylinder 100 can be reliably increased, thereby ensuring that the glue in the glue storage cylinder 100 can be squeezed between the sleeve 21 and the core 23.

[0050] By setting the conduit 201, on the one hand, it can support the core 23 and prevent the core 23 from bending and being damaged. On the other hand, the conduit 201 can separate the core 23 from the glue, reducing the surface area of ​​the core 23 covered by the glue, and making it easier to separate the glue-filling device 1 and the glue-filling component 2 after the glue is filled.

[0051] By setting the air guide pipe 202, the air intake of the air inlet 102 can be guided to move towards the glue outlet 101. Since the inner diameter of the air guide pipe 202 is smaller than the inner diameter of the glue storage cylinder 100, the gas flow rate in the air guide pipe 202 is faster. As a result, the gas flows out of the air guide pipe 202 at a faster speed, generating a greater impact force on the glue, which is beneficial for squeezing the glue into the glue-to-be-filled assembly 2.

[0052] To prevent the adhesive from being squeezed into the conduit 201, a sealing structure such as a sealing ring can be provided between the conduit 201 and the core 23. Alternatively, the gas in the air inlet 102 can also flow to the adhesive outlet 101 through the gap between the conduit 201 and the core 23. In other words, the gap between the conduit 201 and the core 23 can also serve as a guide for air, thereby preventing the adhesive from being squeezed between the conduit 201 and the core 23.

[0053] In some implementations, such as Figure 6 and Figure 7 As shown, the air guide tube 202 extends circumferentially along the conduit tube 201. The air guide tube 202 is provided with multiple air guide channels 2021. The multiple air guide channels 2021 are arranged at intervals along the circumferential direction of the conduit tube 201. The air inlet 102 is connected to the glue outlet 101 through the air guide channels 2021.

[0054] In this way, on the one hand, the overall cross-sectional area of ​​the air guiding channel 2021 is increased, which can guide more gas out of the glue outlet 101 per unit time, which is conducive to improving the efficiency of squeezing the glue into the component 2 to be glued. On the other hand, multiple air guiding channels 2021 can be arranged at equal intervals, so the glue is subjected to more uniform force, which is conducive to making the glue distribution between the sleeve 21 and the core 23 more uniform, and the insulation effect and positioning effect between the sleeve 21 and the core 23 are better.

[0055] In some implementations, such as Figures 5-7 As shown, the length of the air guide tube 202 is less than the length of the conduit tube 201. The smaller length of the air guide tube 202, while ensuring that the relative position between the air guide tube 200 and the glue storage tube 100 is fixed, can reduce the volume of the air guide tube 202, reduce cost and weight. Furthermore, the reduced contact area between the air guide tube 202 and the glue storage tube 100 results in less friction between them during relative displacement, thus improving the ease of assembly and disassembly between the air guide tube 200 and the glue storage tube 100.

[0056] Furthermore, the end of the conduit 201 facing the glue outlet 101 is closer to the glue outlet 101 than the end of the air duct 202 facing the glue outlet 101. This results in a longer conduit 201, increasing the length of the core 23 it can cover, thus providing more effective support and preventing bending damage. Also, because the conduit 201 and the glue outlet 101 are closer together, the exposed portion of the core 23 between them is smaller, reducing the contact area between the core 23 and the glue, thereby preventing the core 23 from sticking to the glue applicator 1.

[0057] In some implementations, such as Figure 5 and Figure 7 As shown, the end face of the air guide tube 202 facing the air inlet 102 is flush with the end face of the conduit 201 facing the air inlet 102. In this way, the end face of the air guide cylinder 200 facing away from the glue outlet 101 can be constructed as a plane, which helps to reduce the processing difficulty of the air guide cylinder 200 and improve production efficiency.

[0058] Since the end face of the air guide tube 202 facing the air inlet 102 does not exceed the end face of the conduit tube 201 facing the air inlet 102, the axial length of the air guide tube 200 is the same as the axial length of the conduit tube 201, thus avoiding an increase in the axial length of the air guide tube 200, thereby avoiding an increase in the axial length of the glue storage tube 100, and reducing the volume, weight and cost of the glue dispensing device 1.

[0059] Since the end face of the conduit 201 facing the air inlet 102 does not extend beyond the end face of the air guide tube 202 facing the air inlet 102, the conduit 201 will not affect the connection between the air guide tube 202 and the glue storage cylinder 100, reducing the operational difficulty when connecting the air guide tube 202 and the glue storage cylinder 100, and making it easier to fix the relative position between the air guide cylinder 200 and the glue storage cylinder 100.

[0060] In some implementations, such as Figure 1 and Figure 3 As shown, the glue storage cylinder 100 is provided with a glue injection port 103. In the axial direction of the glue storage cylinder 100, the glue injection port 103 is located between the air guide cylinder 200 and the glue outlet 101. A one-way valve 700 is provided at the glue injection port 103. The one-way valve 700 is used to prevent the glue in the glue storage cylinder 100 from flowing out of the glue injection port 103.

[0061] By setting the glue injection port 103, glue can be injected into the glue storage cylinder 100. In this way, the glue dispensing device 1 can be connected to the component 2 to be dispensed first, and then the glue can be injected into the glue storage cylinder 100, making the use of the glue dispensing device 1 more convenient.

[0062] By setting a one-way valve 700, while ensuring that external adhesive can be injected into the adhesive storage cylinder 100 through the one-way valve 700, the adhesive in the adhesive storage cylinder 100 is prevented from flowing out through the adhesive injection port 103. The adhesive can only flow into the component to be filled 2 through the adhesive outlet 101, thereby improving the utilization rate of the adhesive, reducing waste, ensuring that the component to be filled 2 is filled with a sufficient amount of adhesive, preventing the adhesive from polluting the surrounding environment after it flows out, and improving cleanliness.

[0063] In some implementations, such as Figure 1 and Figure 3 As shown, the glue storage cylinder 100 is equipped with a pressure relief port 104, and a pressure relief valve 800 is installed at the pressure relief port 104. When air is continuously supplied to the glue storage cylinder 100, the air pressure in the glue storage cylinder 100 continuously increases, driving the glue in the glue storage cylinder 100 into the glue-to-be-filled assembly 2, filling the gap between the core 23 and the sleeve 21. When the air pressure in the glue storage cylinder 100 is greater than the preset air pressure, the pressure relief valve 800 is opened, and the gas in the glue storage cylinder 100 can flow out through the pressure relief port 104, reducing the air pressure in the glue storage cylinder 100. This keeps the air pressure in the glue storage cylinder 100 within the preset air pressure range, thus controlling the volume of glue flowing into the glue-to-be-filled assembly 2 per unit time. Therefore, by controlling the duration of air supply to the glue storage cylinder 100, the total volume of glue flowing into the glue-to-be-filled assembly 2 can be controlled, facilitating automated control of glue filling in the glue-to-be-filled assembly 2, reducing operational difficulty, and improving glue utilization.

[0064] Specifically, the glue storage cylinder 100 is provided with a glue storage space. Axially, the glue storage space is located between the air guide cylinder 200 and the glue outlet 101, and the pressure relief port 104 is located on the side of the glue storage space opposite to the glue outlet 101. This prevents glue from flowing to the pressure relief port 104, thus preventing glue from blocking the pressure relief port 104 and preventing the glue storage cylinder 100 from failing to perform pressure relief operation, ensuring the normal operation of the glue dispensing device 1.

[0065] Furthermore, such as Figure 1 and Figure 3 As shown, the pressure relief port 104 is further away from the glue outlet 101 than the glue injection port 103. Normally, the glue outlet 101 is located at the lower end of the glue storage cylinder 100. Therefore, the glue injected by the glue injection port 103 flows towards the glue outlet 101, preventing the glue from flowing to the pressure relief port 104. This prevents the glue from blocking the pressure relief port 104, which would prevent the glue storage cylinder 100 from being unable to perform the pressure relief operation, and ensures the normal operation of the glue dispensing device 1.

[0066] Furthermore, such as Figure 1 and Figure 3 As shown, the pressure relief port 104 and the glue injection port 103 are located on opposite sides of the glue storage cylinder 100 in the radial direction. This increases the radial distance between the pressure relief port 104 and the glue injection port 103, further reducing the probability of glue flowing to the pressure relief port 104. This more effectively prevents glue from clogging the pressure relief port 104, thus preventing the glue storage cylinder 100 from failing to perform pressure relief operations and ensuring the normal operation of the glue dispensing device 1.

[0067] The glue storage space and the air guide cylinder 200 can be spaced apart along the axial direction of the glue storage cylinder 100.

[0068] In some implementations, such as Figures 1-4 As shown, the glue dispensing device 1 also includes an air inlet nozzle 300, which is connected to the glue storage cylinder 100 and communicates with the air inlet 102. The air inlet nozzle 300 is suitable for connection to an air source. The air inlet 102 and the air inlet nozzle 300 are detachable. For example, the air inlet 102 and the air inlet nozzle 300 can be plugged and detached, or the air inlet 102 and the air inlet nozzle 300 can be connected by a threaded connection. This makes it easy to replace the air inlet nozzle 300.

[0069] The air inlet nozzle 300 may include a coarse section 310, a transition section 320, and a constriction section 330. The coarse section 310 is fitted onto the glue storage cylinder 100. The transition section 320 connects the coarse section 310 and the constriction section 330. The inner diameter of the transition section 320 is smaller than the inner diameter of the coarse section 310. The inner diameter of the transition section 320 gradually increases towards the glue storage cylinder 100. The inner diameter of the transition section 320 is smaller than the air inlet 102. The inner diameter of the constriction section 330 is not greater than the inner diameter of the transition section 320. The inner diameter of the constriction section 330 may remain unchanged. The outer diameter of the constriction section 330 gradually decreases towards the direction away from the glue storage cylinder 100 to serve as a guide and facilitate the connection of the air inlet nozzle 300 to the air source.

[0070] The air inlet 102 and the glue outlet 101 are located at opposite ends of the glue storage cylinder 100 along its axial direction. This results in a larger distance between the air inlet nozzle 300 and the glue-to-be-filled assembly 2, preventing interference between the air source connected to the air inlet nozzle 300 (such as an air storage device, a gas generator, and related gas transmission pipes) and the glue-to-be-filled assembly 2, and making full use of the space in the glue storage cylinder 100.

[0071] The air guide tube 200 is located between the air inlet 102 and the glue outlet 101, and the air guide tube 200 and the glue outlet 101 are spaced apart. That is to say, the air guide tube 200 is located inside the glue storage cylinder 100 and does not extend to the outside of the glue storage cylinder 100.

[0072] In this way, on the one hand, when the core 23 is inserted into the air guide tube 200, the end of the air guide tube 200 facing the air inlet 102 may extend out, placing the air guide tube 200 inside the glue storage tube 100. Even if the core 23 passes through the air guide tube 200, it will still be inside the glue storage tube 100 and will not be exposed to the outside, reducing the probability of wear on the core 23 during glue filling. On the other hand, it can reduce the axial length of the air guide tube 200, reducing cost and weight.

[0073] In some implementations, such as Figure 3 , Figure 4 and Figure 9 As shown, the sealing structure includes a first sealing gasket 400, which is axially located between the glue storage cylinder 100 and the sleeve 21. Specifically, the first sealing gasket 400 is sandwiched between the end face of the glue storage cylinder 100 and the end face of the sleeve 21. The first sealing gasket 400 can be an elastic element, for example, made of rubber or silicone material. The first sealing gasket 400 is capable of elastic deformation to fill the gap between the end face of the glue storage cylinder 100 and the end face of the sleeve 21.

[0074] This prevents the glue from leaking between the end face of the glue storage cylinder 100 and the end face of the sleeve 21, thus avoiding glue pollution of the surrounding environment, reducing glue waste, and improving glue utilization.

[0075] In some embodiments, the sealing structure further includes a second sealing gasket (not shown in the figure), which is located radially between the glue reservoir 100 and the sleeve 21. The second sealing gasket can be an elastic element, for example, made of rubber or silicone material.

[0076] In other words, when the sleeve 21 is fitted onto the glue storage cylinder 100, the second sealing gasket is sandwiched between the outer peripheral surface of the glue storage cylinder 100 and the inner peripheral surface of the sleeve 21. The second sealing gasket can undergo elastic deformation to fill the gap between the outer peripheral surface of the glue storage cylinder 100 and the inner peripheral surface of the sleeve 21, thereby preventing glue from leaking from the gap between the outer peripheral surface of the glue storage cylinder 100 and the inner peripheral surface of the sleeve 21.

[0077] When the sleeve 21 is fitted onto the glue storage cylinder 100, the second sealing gasket is clamped between the inner circumferential surface of the glue storage cylinder 100 and the outer circumferential surface of the sleeve 21. The second sealing gasket can undergo elastic deformation to fill the gap between the inner circumferential surface of the glue storage cylinder 100 and the outer circumferential surface of the sleeve 21, thereby preventing glue from leaking from the gap between the inner circumferential surface of the glue storage cylinder 100 and the outer circumferential surface of the sleeve 21.

[0078] This avoids polluting the surrounding environment with glue, reduces glue waste, and increases glue utilization.

[0079] It should be noted that the first sealing gasket 400 and the second sealing gasket can be installed simultaneously. In this case, the first sealing gasket 400 and the second sealing gasket can be integrally molded for easy disassembly and assembly. At this time, a double seal is formed between the sleeve 21 and the glue storage cylinder 100, which further improves the sealing effect and further reduces the probability of glue leakage.

[0080] In some implementations, such as Figures 1-4 as well as Figure 8 As shown, the dispensing device 1 also includes a pressure plate 600, a connecting pipe seat 22 on the outer circumferential surface of the sleeve 21, and a connecting seat 105 on the outer circumferential surface of the glue storage cylinder 100. The pressure plate 600 and the connecting seat 105 are spaced apart relative to each other along the axial direction of the glue storage cylinder 100 to clamp the component 2 to be dispensed. The pressure plate 600 is sleeved on the sleeve 21 and connected to the connecting seat 105, and the pressure plate 600 and the connecting seat 105 together clamp the connecting pipe seat 22. The pressure plate 600 and the connecting seat 105 can be connected by a detachable structure such as threaded fasteners (bolts, nuts, screws) or a snap-fit ​​structure.

[0081] This design allows for both connection between the dispensing device 1 and the component to be dispensed 2, and also facilitates separation between them. Furthermore, the connection and positioning between the dispensing device 1 and the component to be dispensed 2 utilizes the existing connector 22 of the sleeve 21, without altering the structural state of the component to be dispensed 2, resulting in a relatively simple structure.

[0082] The connector 22 may have a groove 24 into which the glue storage cylinder 100 is inserted. A first sealing gasket 400 is disposed between the end face of the glue storage cylinder 100 and the bottom wall of the groove 24, and a second sealing gasket is disposed between the end face of the glue storage cylinder 100 and the inner peripheral wall of the groove 24.

[0083] Furthermore, such as Figure 2 and Figure 8 As shown, the outer peripheral surface of the pressure plate 600 is provided with a notch 601, which penetrates the pressure plate 600 along the thickness direction. The sleeve 21 is inserted into the notch 601. The sleeve 21 can be inserted into the notch 601 along the radial direction of the pressure plate 600 and can be moved out of the notch 601 along the radial direction of the pressure plate 600.

[0084] In this way, the fit between the pressure plate 600 and the sleeve 21 is convenient, simple to operate, and easy to implement. Furthermore, the processing of the pressure plate 600 is also relatively simple, improving production efficiency. The reduced size of the pressure plate 600 also reduces costs and weight.

[0085] The assembly process between the glue-dispensing device 1 and the component to be glued 2 in this embodiment is as follows:

[0086] First, connect the air inlet nozzle 300 to the glue reservoir 100;

[0087] Then, insert the core 23 into the limiting space 2011 of the conduit 201;

[0088] Then place the component 2 to be glued into the notch 601 of the pressure plate 600;

[0089] Finally, the pressure plate 600 and the connecting seat 105 are connected. The pressure plate 600 and the connecting seat 105 gradually approach each other and clamp the connecting pipe seat 22 to fix the relative position between the glue storage cylinder 100 and the sleeve 21. At this time, the glue dispensing device 1 and the glue dispensing component 2 are assembled.

[0090] The glue-pouring process of the glue-pouring device 1 to the component 2 to be glued in this embodiment is as follows:

[0091] First, a certain amount of glue is injected into the glue storage space of the glue storage cylinder 100 through the glue injection port 103;

[0092] Then, the air source is introduced into the glue storage cylinder 100 through the air inlet 300. The gas moves towards the glue storage space through the air guide channel 2021 of the air guide pipe 202 and the wire pipe 201. The air pressure in the glue storage cylinder 100 increases continuously, and the glue in the glue storage space is continuously squeezed between the sleeve 21 and the connector 22.

[0093] When the air pressure inside the glue storage cylinder 100 exceeds the predetermined air pressure value, the pressure relief valve 800 opens, and the gas in the glue storage cylinder 100 is discharged from the pressure relief valve 800 to maintain the air pressure inside the glue storage cylinder 100 within the predetermined air pressure range.

[0094] Finally, when the ventilation time reaches the predetermined time, the air source stops supplying air to the rubber storage cylinder 100 through the air inlet 300.

[0095] Although embodiments of the invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the invention, and such modifications and variations all fall within the scope defined by the appended claims.

Claims

1. A dispensing device, characterized in that, include: The glue storage cylinder (100) is provided with a glue outlet (101) and an air inlet (102) connected in a manner. The glue outlet (101) is adapted to cover the glue filling position of the glue-to-be-filled assembly (2). The air inlet (102) is adapted to be connected to an air source. The glue-to-be-filled assembly (2) includes a sleeve (21) and a core (23). The core (23) is inserted inside the sleeve (21). An air guide tube (200) is inserted into the glue storage tube (100). The air guide tube (200) has a hollow cavity to form a limiting space (2011) suitable for the insertion of the glue-to-be-filled assembly (2). A sealing structure is provided on the glue storage cylinder (100) and is provided around the joint between the glue storage cylinder (100) and the glue filling position of the glue filling component (2).

2. The dispensing device according to claim 1, characterized in that, The air guide tube (200) includes: A conduit (201) is used to form the limiting space (2011) inside the conduit (201). The air guide tube (202) is connected to the outer peripheral surface of the conduit (201); In the axial direction of the glue storage cylinder (100), the air guide cylinder (200) is located between the glue outlet (101) and the air inlet (102), and the air inlet (102) is connected to the glue outlet (101) at least through the air guide pipe (202).

3. The dispensing device according to claim 2, characterized in that, The air guide tube (202) is arranged around the circumference of the threading tube (201). The air guide tube (202) is provided with a plurality of air guide channels (2021). The plurality of air guide channels (2021) are arranged at intervals around the circumference of the threading tube (201). The air inlet (102) is connected to the glue outlet (101) through the air guide channels (2021).

4. The dispensing apparatus according to any one of claims 1 to 3, characterized in that, The glue storage cylinder (100) is provided with a glue injection port (103), and the glue injection port (103) is located between the air guide cylinder (200) and the glue outlet (101) in the axial direction of the glue storage cylinder (100); A one-way valve (700) is provided at the glue injection port (103), and the one-way valve (700) is used to prevent the glue in the glue storage cylinder (100) from flowing out of the glue injection port (103).

5. The dispensing apparatus according to claim 2, characterized in that, The end of the conduit (201) facing the glue outlet (101) is closer to the glue outlet (101) than the end of the air duct (202) facing the glue outlet (101); and / or The end of the air guide tube (202) facing the air inlet (102) and the end of the conduit tube (201) facing the air inlet (102) are flush.

6. The dispensing apparatus according to claim 4, characterized in that, The glue storage cylinder (100) is provided with a pressure relief port (104), and a pressure relief valve (800) is provided at the pressure relief port (104). The glue storage cylinder (100) is provided with a glue storage space. In the axial direction of the glue storage cylinder (100), the glue storage space is located between the air guide cylinder (200) and the glue outlet (101). The pressure relief port (104) is located on the side of the glue storage space opposite to the glue outlet (101).

7. The dispensing apparatus according to any one of claims 1 to 3, characterized in that, The dispensing device (1) further includes: An air inlet nozzle (300) is connected to the glue storage cylinder (100) and communicates with the air inlet (102). The air inlet (102) and the glue outlet (101) are respectively located at opposite ends of the glue storage cylinder (100) in the axial direction. The air inlet nozzle (300) is adapted to be connected to the air source.

8. The dispensing apparatus according to any one of claims 1 to 3, characterized in that, The sealing structure includes: A first sealing gasket (400) is located axially in the glue reservoir (100) between the glue reservoir (100) and the sleeve (21); and / or The second sealing gasket is located radially on the glue storage cylinder (100) between the glue storage cylinder (100) and the sleeve (21).

9. The dispensing apparatus according to any one of claims 1 to 3, characterized in that, The outer circumferential surface of the glue storage cylinder (100) is provided with a connecting seat (105), and the glue dispensing device (1) further includes a pressure plate (600). Along the axial direction of the glue storage cylinder (100), the pressure plate (600) and the connecting seat (105) are arranged at intervals to clamp the glue-to-be-dispensed component (2).

10. The dispensing apparatus according to claim 9, characterized in that, The outer peripheral surface of the pressure plate (600) is provided with a notch (601), and the notch (601) penetrates the pressure plate (600) along the thickness direction of the pressure plate (600).

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